Source: https://patents.google.com/patent/JP2010527156A/en
Timestamp: 2020-01-20 14:18:10
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Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 61', 'Application No. 61', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 12', 'Application No. 60', 'Application No. 60']

JP2010527156A - Lighting device and lighting method - Google Patents
JP2010527156A
JP2010527156A JP2010507648A JP2010507648A JP2010527156A JP 2010527156 A JP2010527156 A JP 2010527156A JP 2010507648 A JP2010507648 A JP 2010507648A JP 2010507648 A JP2010507648 A JP 2010507648A JP 2010527156 A JP2010527156 A JP 2010527156A
JP2010507648A
ポール バン デ ベン アントニー
エイチ．ネグレイ ジェラルド
2007-05-08 Priority to US91660807P priority Critical
2008-05-08 Application filed by クリー エル イー ディー ライティング ソリューションズ インコーポレイテッド filed Critical クリー エル イー ディー ライティング ソリューションズ インコーポレイテッド
2008-05-08 Priority to PCT/US2008/063027 priority patent/WO2008137977A1/en
2010-08-05 Publication of JP2010527156A publication Critical patent/JP2010527156A/en
X, y coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42) when no other light is present ), And one or more solid state emitters emitting near-ultraviolet light that produce a mixture of light in the region defined by (0.36, 0.38) and a wavelength in the range of 490 nm to 555 nm. An illumination device comprising one or more lumiholes that emit light having the same. The lighting device may further comprise one or more 600 nm to 630 nm emitters, and the mixture of light emitted from the lighting device may be within the 10 MacAdam ellipses of the blackbody locus. A packaged solid state light emitter and illumination method are also presented.
This application claims the benefit of US Provisional Patent Application No. 60 / 916,608, filed May 8, 2007, which is incorporated herein by reference.
The subject of the invention relates to lighting devices, in particular devices comprising one or more solid state light emitters (eg light emitting diodes) and one or more luminescent materials (eg one or more phosphors). The subject of the invention is also directed to packaged solid state light emitters. The subject of the invention is also directed to a lighting method.
A large percentage of electricity generated in the United States (according to an assessment, more than 25 percent) is used for lighting each year. Therefore, there is a constant demand for realizing energy efficient lighting. Incandescent light bulbs are well known as light sources that are not very energy efficient, and about 90 percent of the power consumed is emitted as heat rather than light. Fluorescent bulbs are more efficient (about 10 times) than incandescent bulbs, but still less efficient than solid light emitters such as light emitting diodes.
In addition, incandescent bulbs are relatively short-lived compared to the standard lifetime of solid state light emitters, i.e. typically on the order of 750 to 1000 hours. In contrast, for example, for a light emitting diode, its typical lifetime is between 50,000 and 70,000 hours. Fluorescent bulbs have a longer life than incandescent bulbs (eg, 10,000 to 20,000 hours), but have poor color reproduction.
Color reproduction is typically measured using the average color rendering index (CRI Ra). CRI Ra is a modified average of relative measurements showing the contrast between the color rendering of the light illumination system and the color rendering of the reference radiator when illuminated with eight basic colors of light. That is, it is a relative measure of the deviation of the surface color of an object when light is irradiated with a specific lamp. CRI Ra is equal to 100 if the color coordinates of a set of test colors illuminated by the light illumination system are the same as the coordinates of the same test color illuminated by the reference radiator. Daylight has high CRI (Ra is about 100), incandescent bulbs are relatively close (Ra is greater than 95), and fluorescent lighting is less accurate (Ra is typically 70-80). Some types of dedicated lighting have very low CRI (eg, Ra for mercury or sodium lamps is very low, about 40 or less). Sodium lamps are used, for example, for highway lighting. However, the driver's response time decreases significantly with decreasing CRI Ra values (for a given brightness, visibility decreases with decreasing CRI Ra).
Another problem faced with conventional lighting fixtures is that lighting devices (eg, light bulbs, etc.) need to be replaced periodically. Such problems are particularly noticeable when there is lighting in inaccessible places (eg vaulted ceilings, bridges, skyscrapers, tunnels) and / or when replacement costs are extremely high. The typical lifetime of a conventional luminaire is about 20 years, which corresponds to at least about 44,000 hours of light-generating device usage (based on daily use for 6 hours and 20 years). The lifetime of light generating devices is typically quite short and therefore requires periodic replacement.
For these and other reasons, therefore, work is underway to develop methods that use solid state light emitters in place of incandescent, fluorescent, and other lighting devices in various applications. In addition, when solid state light emitters are already in use, for example, improved solid state light emitters with respect to energy efficiency, average color rendering index (CRI Ra), contrast, luminous efficiency (lm / W), and / or duration of use. Work continues to realize encapsulated devices.
One group of solid state light emitters are light emitting diodes. Light emitting diodes are well-known semiconductor devices that convert current into light. The variety of fields in which various types of light emitting diodes are used is increasing, and the purposes are also various.
More specifically, a light emitting diode is a semiconductor device that emits light (ultraviolet, visible, or infrared) when a potential difference is applied between pn junction structures. Methods of fabricating light emitting diodes and many related structures are well known and numerous, and such devices can be used in the present subject matter. See Chapters 12-14 of Non-Patent Document 1 and Chapter 7 of Non-Patent Document 2, which describe various optical devices including light emitting diodes.
Commonly recognized and commercially available light emitting diodes (“LEDs”) sold at electrical stores (for example) are typically “packaged” devices made up of a number of parts. These packaged devices include, but are not limited to, semiconductor-based light emitting diodes, various wiring connections, and light emitting diodes such as those described in Patent Literature 1, Patent Literature 2, and Patent Literature 3. Includes a package encapsulating.
As is well known, light emitting diodes generate light by exciting electrons across the band gap between the conduction band and valence band of the semiconductor active (light emitting) layer. The electron transition generates light having a wavelength depending on the band gap. Therefore, the color (wavelength) of light emitted by the light emitting diode depends on the semiconductor material of the active layer of the light emitting diode.
Although the development of solid state light emitters, such as light emitting diodes, has revolutionized the lighting industry in various ways, some of the properties of solid state light emitters are challenging and some of them are still completely solved. Absent. For example, the emission spectrum of a particular light emitting diode is typically concentrated around a single wavelength (as indicated by the composition and structure of the light emitting diode), but in some applications where this is desirable, this is undesirable. (For example, when illumination is performed, the CRI Ra of such an emission spectrum is very low).
Since light perceived as white is always a mixture of two or more colors (or wavelengths) of light, a single light emitting diode junction that can efficiently generate white light has not been developed. “White” light-emitting diode lamps with light-emitting diode pixels / clusters consisting of red, green and blue light-emitting diodes have been developed. (1) a light emitting diode that generates blue light, and (2) a luminescent material (eg, a phosphor) that emits yellow light in response to excitation by light emitted by the light emitting diode, thereby providing blue light and Other “white” light-emitting diode lamps have also been made that generate light that is perceived as white light when mixed with yellow light.
In general, the 1931 CIE chromaticity diagram (international standard for primary colors established in 1931) and the 1976 CIE chromaticity diagram (similar to the 1931 CIE chromaticity diagram, but with similar distances on the diagram being similar perceived colors The figure, modified to represent the difference between, is a useful criterion in defining a color as a weighted sum of colors.
Various luminescent materials (and structures containing luminescent materials, referred to as Lumiphors or luminophore media (see, for example, US Pat. No. 6,077,058, incorporated herein by reference)) are well known and Available to contractors. For example, a phosphor is a luminescent material that emits response radiation (eg, visible light) when excited by an excitation radiation source. In many cases, the response radiation has a wavelength that is different from the wavelength of the excitation radiation. Other examples of luminescent materials include scintillators, day glow tapes, and inks that emit light in the visible spectrum after irradiation with ultraviolet light.
Luminescent materials can be classified as down conversion, ie, materials that convert photons to lower energy levels (long wavelengths), or up conversion, ie, materials that convert photons to higher energy levels (short wavelengths). .
Inclusion of a luminescent material in an LED device has heretofore been achieved by making the luminescent material transparent or substantially transparent encapsulated (eg, epoxy-based, silicone-based, Glass based or metal oxide based materials).
For example, Patent Document 5 (Yano '166) discloses that a conventional light emitting diode lamp is a light emitting diode chip, a bullet-shaped transparent housing for covering the light emitting diode chip, a lead for supplying current to the light emitting diode chip, and a light emitting diode chip. Including a cup reflector for reflecting the radiation from the light in a uniform direction, wherein the light emitting diode chip is encapsulated in a first resin portion, which is further encapsulated in a second resin portion. . According to Patent Document 5, the first resin portion is formed by filling the cup reflector with a resin material, placing the light emitting diode chip on the bottom of the cup reflector, and then electrically connecting the cathode electrode and the anode electrode to the leads with metal wires. It is formed by curing the resin material after being connected to. According to Patent Document 5, the phosphor is dispersed in the first resin portion so as to be excited by the light A emitted from the light emitting diode chip, and the excited phosphor has a longer wavelength than the light A. And a part of the light A is transmitted through the first resin portion including the phosphor, so that the light C, which is a mixture of the light A and the light B, is generated. Used as light irradiation.
As noted above, “white LED lamps” (ie, lamps that are perceived as white or near white) are being investigated as alternatives to white incandescent lamps. A typical example of a white LED lamp is a blue light emitting diode chip package made of indium gallium nitride (InGaN) or gallium nitride (GaN) and coated with a phosphor such as YAG. In such an LED lamp, the blue light emitting diode chip emits blue light, and upon receiving the radiation, the phosphor emits yellow fluorescence. For example, in some designs, white light emitting diode lamps are manufactured by forming a ceramic phosphor layer on the output surface of a blue light emitting semiconductor light emitting diode. Some of the blue light emitted from the light emitting diode chip passes through the phosphor, but some of the blue light emitted from the light emitting diode chip is absorbed by the phosphor and the phosphor is excited, Emits yellow light. A portion of the blue light emitted by the light emitting diode that is transmitted through the phosphor is mixed with the yellow light emitted by the phosphor. The observer perceives a mixture of blue and yellow light as white light. Other types use blue or purple light emitting diode chips in combination with phosphor materials that generate red or orange and green or yellow-green light rays. In such lamps, a portion of the blue or violet light emitted by the light emitting diode chip excites the phosphor, which causes the phosphor to emit red or orange and yellow or green light. These rays can be combined with blue or violet rays to produce the perception of white light.
Also, as described above, in other types of LED lamps, light emitting diode chips that emit ultraviolet light are combined with red (R), green (G), and blue (B) rays. In such “RGB LED lamps”, the UV radiation emitted from the light emitting diode chip excites the phosphor, which causes the phosphor to emit red, green, and blue rays that are mixed together. The light rays are perceived as white light by human eyes. Thus, white light can be configured as a mixture of these rays.
Designs have been presented in which existing LED component packages and other electronic components are assembled into a single instrument. In such a design, the packaged LED is attached to a circuit board or directly to a heat sink, the circuit board is attached to a heat sink, and the heat sink is attached to the instrument housing along with the necessary drive electronics. It is attached. In many cases, additional optics (auxiliary package parts) are also required.
When solid state light emitters are used in place of other light sources, such as incandescent bulbs, packaged LEDs are used with conventional luminaires, for example, devices that include a hollow lens and a base plate attached to the lens. However, the base plate has a conventional socket housing with one or more contacts that are electrically coupled to a power source. For example, an electrical circuit board, a plurality of packaged LEDs attached to the circuit board, and a connection post attached to the circuit board and adapted to connect to a socket housing of a luminaire LED bulbs that can emit light from a plurality of LEDs are manufactured.
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Sze, Physics of Semiconductor Devices (2d Ed. 1981) Sze, Modern Semiconductor Device Physics (1998) "Encyclopedia of Physical Science and Technology", vol. 7, 230-231 (Robert A Meyers ed., 1987) K. H. Butler, "Fluorescent Lamp Phosphors" (The Pennsylvania State University Press 1980) G. Blasse et al., "Luminescent Materials" (Springer-Verlag 1994)
Using solid state light emitters, such as light emitting diodes, to make white light available for various applications, increasing energy efficiency, improving average color rendering index (CRI Ra), and improving luminous efficiency (lm / W) There is a continuing need for methods that increase and / or extend the useful life.
“White,” which is relatively efficient but inferior in color rendering, typically has a CRI Ra value of less than 75, is particularly insufficient for red rendering, and is also somewhat insufficient for green. There is an LED light source. This is because many things, such as typical human complexions, food, labels, paintings, posters, signs, apparel, home decor, plants, flowers, cars, etc., are incandescent or natural lighting. It means to show an unusual color or a different color compared to the irradiation. Such white LED lamps typically have a color temperature of about 5000K, which is generally not visually pleasing for general lighting, but for commercial product or advertising and print lighting. May be desirable.
Some so-called “warm white” LED lamps have more acceptable color temperatures for indoor use (typically 2700-3500K), and in some special cases CRI Ra is Although appropriate (in the case of a yellow and red phosphor mixture, as high as Ra = 95), its efficiency is generally much lower than that of a standard “cold white” LED lamp.
Colored objects illuminated by RGB LED lamp light sometimes do not look like true colors. For example, an object that reflects only yellow light and thus appears yellow when illuminated with white light is caused by the red and green LEDs of an RGB LED luminaire, when illuminated with seemingly yellow light It may appear dull and unclear (or desaturated and grayish). Therefore, such a lamp is not considered to achieve excellent color rendering, especially when illuminated in various settings, such as general lighting, and especially for natural scenes. Also, currently available green LEDs are relatively inefficient, thus limiting the efficiency of such lamps.
When using LEDs with different hues, it is equally necessary to use LEDs with different efficiencies, including those with lower efficiencies, which reduces the efficiency of such systems, and The complexity and cost of the circuit that controls many different types of LEDs and maintains the color balance of the light will increase dramatically.
Therefore, the white LED lamp has the characteristics of efficiency and long life (that is, avoid the use of light source with relatively low efficiency) and acceptable color temperature, good color rendering index, and simple control circuit over a wide range. A highly efficient white light source is also required.
In accordance with the subject matter of the present invention, in order to achieve high CRT Ra while realizing high luminous efficiency, the first group of solid state light emitters is irradiated with light, and each of the first group of solid state light emitters is Emitting near ultraviolet radiation having a peak wavelength in the near ultraviolet region and exciting a first group of lumiphors, each of the first group of lumiphors being in the range of about 490 nm to about 555 nm. Emitting light having a dominant wavelength of: (1) light emitted from a lighting device emitted by a first group of solid state light emitters and (2) emitted by a first group of lumiholes. Mixing with light emitted from the lighting device, without additional light, the first line segment connects the first point and the second point, and the second line segment becomes the second point. 3 points, the third line segment connects the third point and the fourth point, the fourth line segment connects the fourth point and the fifth point, and the fifth line segment is the fifth The first point has x and y coordinates of 0.32 and 0.40, and the second point has x and y coordinates of 0.36 and 0.48. The third point has x and y coordinates of 0.43 and 0.45, the fourth point has x and y coordinates of 0.42 and 0.42, and the fifth point is 0. Define points that lie within the region on the 1931 CIE chromaticity diagram surrounded by the first, second, third, fourth, and fifth line segments with x, y coordinates of .36, 0.38 Providing mixed light illumination with x, y color coordinates to be combined, and combining such light with orange or red light that when combined with this light mixture results in white light and perceived light A method involving It is.
The expression “primary wavelength” as used herein, as opposed to “peak wavelength”, which is well known to refer to the spectral line with the highest power in the spectral power distribution of the light source, It is well known to refer to a single wavelength (ie, roughly similar to “hue”) that causes a color sensation that most closely resembles the color sensation perceived when looking at the light emitted by the light source. Used according to the accepted meaning. The human eye does not perceive all wavelengths equally (the perception of yellow and green may be compared to red and blue), and the light emitted by many solid light emitters (eg LEDs) In practice, because of a range of wavelengths, the perceived color (ie, dominant wavelength) is not necessarily equal to the wavelength with the highest power (peak wavelength) (which is often different). True monochromatic light, such as a laser, has the same dominant wavelength and peak wavelength. Ultraviolet light (UV) is by definition invisible and therefore cannot be defined with respect to the dominant wavelength. Ultraviolet light is defined by band or peak wavelength or wavelength band. UV is defined as having a wavelength in the range of 100 nm to 400 nm. Some visible colors such as deep purple or purple and UV have overlapping portions. This overlapping range is from 360 nm to 400 nm. Light within this range can be defined in terms of both dominant or peak wavelengths. For clarity, the wavelength used herein to characterize irradiation or excitation with near UV light and / or irradiation or excitation within a range encompassing wavelengths below 400 nm refers to the peak wavelength.
According to a first aspect of the present inventive subject matter, a lighting device is realized, the device comprising a first group of solid state light emitters and a first group of lumiholes, wherein Each of the first groups emits light having a peak wavelength in the near-ultraviolet region when illuminated, and each of the first groups of lumiholes ranges from about 490 nm to about 555 nm when excited. (1) light emitted from a lighting device emitted by the first group of solid state light emitters when each of the first group of solid state light emitters is in a light illuminated state. And (2) the mixing of the light emitted from the lighting device emitted by the first group of lumihols, the first line segment is the first point and the second point when no additional light is present Tie The line segment connects the second point and the third point, the third line segment connects the third point and the fourth point, and the fourth line segment connects the fourth point and the fifth point. The fifth line connects the fifth point and the first point, the first point has x, y coordinates of 0.32, 0.40, the second point is 0.36, It has an x, y coordinate of 0.48, a third point has an x, y coordinate of 0.43,0.45, and a fourth point has an x, y coordinate of 0.42,0.42. And the fifth point has x, y coordinates of 0.36, 0.38, and is surrounded by first, second, third, fourth, and fifth line segments of 1931 CIE chromaticity This results in a mixed light illumination having x, y color coordinates that define points within the region on the figure.
In some embodiments according to this aspect of the present inventive subject matter, if each of the first group of solid state light emitters is in a lighted state, the lighting device is at least 85 CRI Ra, and in some embodiments at least 90 Of light, in some embodiments at least 92 CRI Ra, and in some embodiments at least 95 CRI Ra.
According to a second aspect of the present inventive subject matter, a lighting device is realized, the device comprising a first group of solid state light emitters, a first group of lumiholes and at least one first power line. Here, each of the first group of solid state light emitters emits light having a peak wavelength in the near-ultraviolet region in the light irradiation state, and each of the first group of lumiholes is excited. , Emitting light having a dominant wavelength in the range of about 490 nm to about 555 nm, and when energy is supplied to the first power line, (1) emitted from a lighting device emitted by a first group of solid state light emitters Mixing of the emitted light and (2) the light emitted from the lighting device emitted by the first group of lumiholes is such that, in the absence of additional light, the first line segment is The second line segment connects the second point and the third point, the third line segment connects the third point and the fourth point, and the fourth line segment is the fourth line Connecting the point and the fifth point, the fifth line segment connecting the fifth point and the first point, the first point having x, y coordinates of 0.32, 0.40, Point has x, y coordinates of 0.36, 0.48, the third point has x, y coordinates of 0.43, 0.45, and the fourth point is 0.42, 0. .5 with x, y coordinates and a fifth point having x, y coordinates of 0.36, 0.38, by the first, second, third, fourth, and fifth line segments This results in mixed light illumination having x, y color coordinates that define points that lie within the region on the enclosed 1931 CIE chromaticity diagram.
According to a third aspect of the present inventive subject matter, there is provided a method of illumination, wherein the method causes a first group of solid state light emitters to emit light, each of the first group of solid state light emitters. Emitting light having a peak wavelength in the near-ultraviolet region and exciting the first group of lumiholes, each of the first group of lumiholes having a dominant wavelength in the range of about 490 nm to about 555 nm. Emitting light having: (1) light emitted from a lighting device emitted by a first group of solid state light emitters and (2) emitted by a first group of lumiholes. When the mixing with the light emitted from the illuminated lighting device is such that no additional light is present, the first line segment connects the first point and the second point, and the second line segment is the second line Connect the point and the third point, the third line Connects the third point and the fourth point, the fourth line segment connects the fourth point and the fifth point, the fifth line segment connects the fifth point and the first point, The first point has x, y coordinates of 0.32, 0.40, the second point has x, y coordinates of 0.36, 0.48, the third point is 0.43, The fourth point has an x, y coordinate of 0.45, the fourth point has an x, y coordinate of 0.42,0.42, and the fifth point has an x, y coordinate of 0.36,0.38. Mixed light irradiation having x, y color coordinates defining points within a region on the 1931 CIE chromaticity diagram surrounded by first, second, third, fourth and fifth line segments having Bring.
In some embodiments according to this aspect of the present inventive subject matter, the mixing of light emitted from the lighting device is at least 85 CRI Ra, in some embodiments at least 90 CRI Ra, in some embodiments. Having at least 92 CRI Ras and in some embodiments at least 95 CRI Ras.
In some embodiments according to the first, second, and third aspects of the present inventive subject matter, at least one of the first group of solid state light emitters comprises a light emitting diode.
In some embodiments according to the first, second, and third aspects of the present inventive subject matter, each of the first group of solid state light emitters ranges from about 380 nm to about 430 nm when in the light illumination state. Emits light having a peak wavelength within.
In some embodiments according to the first, second, and third aspects of the present inventive subject matter, each of the first group of solid state light emitters ranges from about 380 nm to about 410 nm when in the illuminated state. Emits light having a peak wavelength within.
In some embodiments according to the first, second, and third aspects of the present inventive subject matter, each of the first group of lumiholes emits light having a dominant wavelength of about 490 nm when excited. To do.
In some embodiments according to the first and second aspects of the present inventive subject matter, (1) the lighting device further includes a second group of lumi holes, and (2) the second group of lumi holes is excited If so, it emits light having a dominant wavelength in the range of about 600 nm to about 630 nm. In some such embodiments, (1) the light emitted from the lighting device emitted by the first group of solid state light emitters when each of the first group of solid state light emitters is in a light illuminated state. And (2) the mixing of the light emitted from the lighting device emitted by the first group of lumiholes and (3) the light emitted from the lighting device emitted by the second group of lumiholes is an additional light In the absence of, the 40 MacAdam ellipses (or 20 MacAdam ellipses, or 10 MacAdam ellipses, or 5 MacAdams on at least one point on the blackbody locus on the 1931 CIE chromaticity diagram. Resulting in combined illumination with x, y coordinates defining points within the ellipse, or three MacAdam ellipses) on the 1931 CIE chromaticity diagram .
In some embodiments according to the first and second aspects of the present inventive subject matter, (1) the lighting device further comprises a second group of solid state light emitters, and (2) a second of the solid state light emitters The group emits light having a dominant wavelength in the range of about 600 nm to about 630 nm when in the light irradiation state. In some such embodiments, when each of the first group of solid state light emitters is in a light irradiation state and each of the second group of solid state light emitters is in a light irradiation state, (1) solid state light emission Light emitted from a lighting device emitted by a first group of bodies; (2) light emitted from a lighting device emitted by a first group of lumiholes; and (3) a second group of solid state light emitters. The mixing of the light emitted from the illumination device emitted by the illuminating device is a 40 McAdam ellipse (or at least one point on the blackbody locus on the 1931 CIE chromaticity diagram in the absence of additional light (or An x, y coordinate that defines a point within 20 McAdam ellipses, or 10 MacAdam ellipses, or 5 MacAdam ellipses, or 3 MacAdam ellipses) is 19 It provides light irradiation combined in diagram 1 CIE chromaticity.
In some embodiments according to the first and second aspects of the present inventive subject matter, the lighting device further includes an encapsulant and takes the form of a packaged solid state light emitter.
In some embodiments according to the third aspect of the present inventive subject matter, the method further excites a second group of lumiholes, each of the second group of lumiholes within a range of about 600 nm to about 630 nm. Radiating light having a dominant wavelength of. In some such embodiments, (1) light emitted from a lighting device emitted by a first group of solid state light emitters and (2) emitted from a lighting device emitted by a first group of lumiholes. The mixing of the light emitted and (3) the light emitted from the lighting device emitted by the second group of Lumiholes is on a black body locus on the 1931 CIE chromaticity diagram in the absence of additional light X, y defining points within 40 McAdam ellipses (or 20 MacAdam ellipses, or 10 MacAdam ellipses, or 5 MacAdam ellipses, or 3 MacAdam ellipses) of at least one point This results in a combined light exposure whose coordinates are on the 1931 CIE chromaticity diagram.
In some embodiments according to the third aspect of the present inventive subject matter, the method further comprises irradiating a second group of solid state light emitters, wherein each of the second group of solid state light emitters is about Including emitting light having a dominant wavelength in the range of 600 nm to about 630 nm. In some such embodiments, (1) light emitted from a lighting device emitted by a first group of solid state light emitters and (2) emitted from a lighting device emitted by a first group of lumiholes. Mixing of light emitted from the lighting device emitted by the second group of solid state light emitters into the black body locus on the 1931 CIE chromaticity diagram in the absence of additional light. X defining points that are within 40 MacAdam ellipses (or 20 MacAdam ellipses, or 10 MacAdam ellipses, or 5 MacAdam ellipses, or 3 MacAdam ellipses) of at least one point listed , Resulting in combined illumination with y coordinates on the 1931 CIE chromaticity diagram.
In some embodiments according to the first or second aspects of the present inventive subject matter, a solid state light emitter that emits light having a dominant wavelength outside the range of 600 nm to 700 nm when energy is supplied to the first power line. And the mixing of all the light emitted from the illumination device from Lumi Hall, the first line segment connects the first point and the second point, the second line segment is the second point and the third point The third line connects the third point and the fourth point, the fourth line segment connects the fourth point and the fifth point, and the fifth line segment connects to the fifth point. Connect the first points, the first point has x, y coordinates of 0.32, 0.40, the second point has x, y coordinates of 0.36, 0.48, The third point has x, y coordinates of 0.43, 0.45, the fourth point has x2, y coordinates of 0.42, 0.42, and the fifth point is 0.36, X, y coordinates of 0.38 A, it has a first, second, third, fourth, and fifth line segments define a point which is within the area on the diagram 1931 CIE chromaticity surrounded by x, y color coordinates.
According to a fourth aspect of the present inventive subject matter, a packaged solid state light emitter is realized, the packaged solid state light emitter comprising a first solid state light emitter and a first group of lumiholes. Wherein the first solid state light emitter emits light having a peak wavelength in the near-ultraviolet region when illuminated, and each of the first groups of lumiholes is about 490 nm when excited. And radiating light having a dominant wavelength in the range of about 555 nm and the first solid state light emitter is in the illuminated state, (1) light emitted from the lighting device emitted by the first solid state light emitter; (2) The mixing with the light emitted from the lighting device emitted by the first group of lumihols is such that, in the absence of additional light, the first line segment will change the first point and the second point. The second line is connected to the second point and the third Connect the points, the third line connects the third point and the fourth point, the fourth line connects the fourth point and the fifth point, and the fifth line segment is the fifth point And the first point have x, y coordinates of 0.32, 0.40, the second point has x, y coordinates of 0.36, 0.48, The third point has x, y coordinates of 0.43, 0.45, the fourth point has x, y coordinates of 0.42, 0.42, and the fifth point is 0.36. Define a point in the region on the 1931 CIE chromaticity diagram surrounded by the first, second, third, fourth, and fifth line segments having x, y coordinates of 0.38, , Resulting in mixed light illumination having y color coordinates.
In some embodiments according to the fourth aspect of the present inventive subject matter, the packaged solid state light emitter further comprises a second group of lumi holes, each of the second group of lumi holes being excited. In some cases, light having a dominant wavelength in the range of about 600 nm to about 630 nm is emitted. In some such embodiments, when the first solid state light emitter is in the illuminated state, (1) light emitted from the packaged solid state light emitter emitted by the first solid state light emitter; (2) light emitted from a packaged solid state light emitter emitted by a first group of lumiholes and (3) light emitted from a packaged solid state light emitter emitted by a second group of lumiholes. The mixing of the light is caused by 40 MacAdam ellipses (or 20 MacAdam ellipses, or 10 MacAdam ellipses, or 5 MacAdam ellipses) on at least one point on the blackbody locus on the 1931 CIE chromaticity diagram. , Or three MacAdam ellipses) resulting in combined illumination with x, y coordinates defining points on the 1931 CIE chromaticity diagram.
Optionally, one or more lumiholes (or luminescent materials) that emit light having a dominant wavelength in the range of about 430 nm to about 480 nm, and / or light having a dominant wavelength in the range of about 430 nm to about 480 nm. The radiating one or more solid state light emitters can be included in any of the devices (or methods) described herein.
The subject of the present invention further comprises an enclosed space and at least one lighting device according to the present inventive subject matter, wherein the lighting device irradiates light (uniformly or non-uniformly) at least a part of the enclosed space , To the illuminated enclosure, whose volume can be illuminated uniformly or non-uniformly.
The subject of the present invention is further directed to a structure comprising a surface and at least one lighting device as described herein, wherein one or more of the plurality of solid state light emitters are in the illuminated state (Or when current is supplied to one or more power lines), the lighting device illuminates at least a portion of this surface.
The subject of the invention is furthermore a structure, swimming pool or spa, room, warehouse, indicator, road, parking lot, vehicle, for example mounted with at least one lighting device as described herein Signs, traffic signs, advertising signs, ships, toys, mirrors, large ships, electronic devices, boats, airplanes, stadiums, computers, remote audio devices, remote video devices, mobile phones, trees, windows, LCD displays, caves, The irradiation area includes at least one object selected from the group consisting of a tunnel, a garden, a lamppost, and the like.
In some embodiments according to the present inventive subject matter, the lighting device further comprises at least one additional white solid state light emitter, ie, a device that emits light that is perceived as white or near white color (eg, light illumination). At least one light emitting diode that emits a combination of light perceived as white or near-white color, such as a packaged LED consisting of a blue light emitting diode chip and a yellow lumihole when in the state and / or excited state A packaged LED comprising a chip and / or at least one lumihole), one or more additional white solid state light emitters, respectively, as defined above, first, second, third A point outside the first region on the 1931 CIE chromaticity diagram surrounded by the fourth, fifth, and fifth line segments Definitions x, emits a combination of light having a y-coordinate.
In some embodiments according to the present inventive subject matter, the mixed light illumination includes the first line segment connecting the first point and the second point, the second line segment being the second point and the third point. , The third line segment connects the third point and the fourth point, the fourth line segment connects the fourth point and the first point, and the first point is 0.32, 0. 40 x, y coordinates, the second point has 0.36,0.38 x, y coordinates, and the third point has 0.41,0.455 x, y coordinates. And the fourth point has x, y coordinates of 0.36, 0.48 (or the first point has x, y coordinates of 0.376, 0.487, and the second point is The x, y coordinates of 0.407,0.470, the third point has x, y coordinates of 0.359,0.384, and the fourth point is 0.326,0.391. x, y coordinates), by the first, second, third and fourth line segments Having x, y color coordinates that define points within the first subgroup region on the 1931 CIE chromaticity diagram, or mixed light irradiation, where x is from about 0.373 to about 0.383 And y is in a sub-region in the range from about 0.441 to about 0.451, or x is in the range from about 0.454 to about 0.464, and y Is in a partial region in the range from about 0.407 to about 0.417, or x is in the range from about 0.367 to about 0.377, and y is from about 0.431 to about In a sub-region in the range up to 0.441, or x in the range from about 0.443 to about 0.453, and y in the range from about 0.402 to about 0.412. In the subregion or in the range of x from about 0.363 to about 0.373. Is in a subregion where y is in the range of about 0.423 to about 0.433, or x is in the range of about 0.435 to about 0.445, and y is about In a partial region in the range from 0.398 to about 0.408, or in the range from about 0.352 to about 0.362, and y from about 0.403 to about 0.00. In a sub-region in the range up to 413, or x in the range from about 0.406 to about 0.416, and y in the range from about 0.388 to about 0.398. It is in a partial area.
A solid state light emitter may be saturated or unsaturated. The term “saturated” as used herein means having a purity of at least 85%, and the term “purity” has a meaning well known to those skilled in the art, The calculation procedure is well known to those skilled in the art.
Aspects related to the subject matter of the present invention can be represented in either a 1931 CIE (Commission International de I'Eclairage) chromaticity diagram or a 1976 CIE chromaticity diagram. FIG. 1 shows the 1931 CIE chromaticity diagram. FIG. 2 shows the 1976 chromaticity diagram. FIG. 3 shows a portion of a 1976 chromaticity diagram including a blackbody locus. Those skilled in the art are familiar with these diagrams, and these diagrams are readily available (eg, search the Internet for “CIE Chromaticity Diagram” or “CIE Chromaticity Diagram”).
The CIE chromaticity diagram maps human color perception with respect to two CIE parameters x and y (for 1931 chromaticity diagram) or u 'and v' (for 1976 chromaticity diagram). See Non-Patent Document 3 for a technical description of the CIE chromaticity diagram. Spectral colors are distributed around the edges of the contour space, which includes all of the hues perceived by the human eye. The boundary line represents the maximum saturation of the spectral color. As noted above, the 1976 CIE chromaticity diagram is similar to the 1931 CIE chromaticity diagram, except that the 1976 CIE chromaticity diagram represents similar perceived color differences with similar distances on the diagram. The difference is that it has been corrected.
In the 1931 CIE chromaticity diagram, the deviation from a point on the 1931 CIE chromaticity diagram can be expressed in terms of coordinates, or alternatively, in terms of a MacAdam ellipse to give an indication of the degree of perceived color difference. it can. For example, the locus of a point defined as 10 MacAdam ellipses from a specified hue defined by a specific set of coordinates on the 1931 CIE chromaticity diagram differs from the specified hue by a common degree And perceived hues (and so is the locus of points defined as being separated from a particular hue by another number of MacAdam ellipses).
Since similar distances on the 1976 CIE chromaticity diagram represent similar perceived color differences, the deviation from a point on the 1976 CIE chromaticity diagram is represented by coordinates u ′ and v ′, eg, point = ( Δu ′ 2 + Δv ′ 2 ) 1/2 , and the trajectory of a point, which is a common distance from each specified hue, is derived from each hue perceived as being different from the specified hue by a common degree. Become.
The chromaticity coordinates and the CIE chromaticity diagrams illustrated in FIGS. 1-3 are described in detail in numerous books and other publications (eg, Non-Patent Document 4 incorporated herein by reference). Pp. 98-107 and Non-Patent Document 5 pages 109-110).
The chromaticity coordinates (that is, the color points) arranged along the black body locus follow Planck's formula E (λ) = Aλ -5 / (e (B / T) -1), where E is a radiation Intensity, λ is the emission wavelength, T is the color temperature of the black body, and A and B are constants. Color coordinates that are on or close to the blackbody locus provide white light that is comfortable for the human observer. The 1976 CIE chromaticity diagram includes a temperature listing along the blackbody locus. These temperature listings show the color path of a blackbody radiator that can be raised to such temperatures. When a heated object glows, it first emits reddish light, then yellowish and then white, and finally emits bluish light. This occurs because the wavelength associated with the peak radiation of the blackbody radiator gradually decreases with increasing temperature, and follows the Wien displacement law. An illuminant that generates light that is on or near the blackbody locus can therefore be described in terms of its color temperature.
The subject matter of the present invention may be better understood with reference to the accompanying drawings and the following detailed description of the subject matter of the present invention.
It is a figure which shows a 1931 CIE chromaticity diagram. It is a figure which shows a 1976 chromaticity diagram. It is a figure which shows a part of 1976 chromaticity diagram containing a black body locus | trajectory. FIG. 1 shows a first embodiment of a lighting device according to the present inventive subject matter. FIG. 6 is a cross-sectional view of packaged LED 16a in the embodiment shown in FIG. FIG. 6 is a cross-sectional view of packaged LED 16b in the embodiment shown in FIG. FIG. 3 shows a second embodiment of a lighting device according to the present inventive subject matter. FIG. 8 is a cross-sectional view of a portion of a packaged LED 45 in the embodiment shown in FIG. FIG. 6 shows a third embodiment of a lighting device according to the present inventive subject matter. FIG. 10 is a cross-sectional view of packaged LED 16c in the embodiment shown in FIG. 10 is a schematic electrical circuit diagram of a portion of the circuit in the device shown in FIG. FIG. 6 shows a region on a 1931 CIE chromaticity diagram surrounded by first, second, third, fourth, and fifth line segments as described herein.
The subject matter of the invention will now be described in more detail below with reference to the accompanying drawings, in which embodiments of the subject matter of the invention are shown. However, the subject matter of the present invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive subject matter to those skilled in the art. Like numbers refer to like elements throughout. As used herein, “and / or” includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting on the scope of the inventive subject matter. As used herein, “one (or may not use)” and “that (may not use)” (the original singular articles “a”, “an”, And “the”) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the word “comprising” and / or “including”, as used herein, describes the described feature, integer, process, operation, element, and / or component (or component). It is also understood that it does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components (or components), and / or groups thereof. I will.
The expression “lighting device” as used herein is not limited except to indicate that the device has the ability to emit light. That is, the lighting device can be a flat or three-dimensional area, such as a structure, swimming pool or spa, room, warehouse, indicator, road, parking lot, vehicle, sign, eg, traffic sign, advertising sign, ship, toy, Light a mirror, large ship, electronic device, boat, airplane, stadium, computer, remote audio device, remote video device, mobile phone, tree, window, LCD display, cave, tunnel, garden, lamppost, or enclosure Devices that illuminate a device or an array of devices, or edge or backlight illumination (eg, backlight posters, signs, LCD displays), bulb replacement (eg, AC incandescent, low voltage, fluorescent, etc.) Light) used for outdoor lighting, Lights used for utility lighting, lights used for external residential lighting (wall mounting, column / post mounting), ceiling fixtures / wall sconce, cabinet under lighting, lamps (floor and / or table and / or desk) , Garden lamp, track lighting, work lighting, dedicated lighting, ceiling fan lighting, antique document / art exhibition lighting, high vibration / impact lighting-devices used for mirror / vanity mirror lighting, or It can be any other light emitting device.
When an element such as a layer, region, or substrate is referred to herein as being “on” or extending “up”, reaching, extending, etc. of another element, the element is directly above another element. There may also be elements that are, spread, reach, stretch or intervene. In contrast, when an element is referred to herein as being “directly above”, “directly upward”, reaching, or extending other elements, there are no intervening elements present. Also, where an element is referred to herein as being “connected” or “coupled” to another element, the element can be directly connected to or coupled to another element, or There may be intervening elements. In contrast, when an element is referred to herein as being “directly connected” or “directly coupled” to another element, there are no intervening elements present.
Although terms such as “first”, “second” and the like may be used herein to describe various elements, components, regions, layers, sections, and / or parameters, Elements, components, regions, layers, sections, and / or parameters should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from the other region, layer or section. Accordingly, a first element, component, region, layer, or section described below can be referred to as a second element, component, region, layer, or section without departing from the teachings of the present inventive subject matter. .
Further, relative terms such as “lower” or “lower” and “upper” or “upper” are used herein to describe the relationship of one element to the other as shown in the figures. Can be used for Such relative terms are intended to encompass different orientations of the device in addition to the orientation shown in the figure. For example, if the device in the figure is flipped, an element described as being “downside” of another element will be oriented “upside” of the other element. Thus, the exemplary term “lower” may encompass both “lower” and “upper” orientations, depending on the particular orientation of the figure. Similarly, when one device of the figure is flipped, an element described as being “below” or “below” another element will be oriented “above” the other element. Thus, the exemplary terms “down” or “below” can encompass both up and down orientations.
The expression “solid state light emitter from 380 nm to 430 nm” means a solid state light emitter that emits light having a peak wavelength in the range from about 380 nm to 430 nm in the light irradiation state.
The expression “solid state light emitter from 600 nm to 630 nm” means a solid state light emitter that emits light having a dominant wavelength in the range from about 600 nm to 630 nm in the light irradiation state.
The term “current” as used in the expression “when current is supplied to the first power line” refers to the dominant wavelength (or peak wavelength) within the corresponding range described herein. ) Is sufficient to cause the solid state light emitter (s) to emit light.
The expression “directly or in electrical connection in a switchable manner” means “directly in electrical connection” or “in electrical connection in a switchable manner”.
The description herein that one or more solid state light emitters are “electrically connected” to a power line means that current can be supplied to the power line (s) by supplying current to the power line.
The description herein that one or more switches are electrically connected to a power line is that current can flow through the power line when the switch (s) are closed, and (1 Means that current can be prevented from flowing through the power line when one or more switches are open.
The description herein that two components in a device are “switchably electrically connected” means that a switch is placed between the two components, and that the switch selectively opens and closes. Means that the two components are electrically connected when the switch is closed, and the two components are not electrically connected when the switch is open (ie, during the switch is open) .
The expression “light irradiation” (or “light irradiation state” or “irradiated” or “irradiated”) as used herein when referring to a solid state light emitter means that at least some current is solid. Supplied to the illuminant, which means that the solid state illuminant emits at least some electromagnetic radiation in which the wavelength of at least part of the emitted radiation is from 100 nm to 1000 nm. In addition, the expression “light irradiation state” or “irradiated” further means that the solid-state light emitter emits light, and if the light is visible light or is visible light, it is a continuous light to the human eye. In situations where they emit continuously or intermittently at a rate perceived as radiative radiation, or when multiple solid light emitters of the same or different colors emit visible light or are visible Intermittently and / or alternately ("on" as perceived by the human eye as a continuous emission of light (and as a mixture of colors if different colors of light are emitted) It also includes radiating situations (may or may not overlap in time).
The expression “excited state” or “excited” as used herein when referring to lumihole means that at least some electromagnetic radiation (eg, visible light, UV light, or infrared) is in contact with the lumihole. , Meaning that Lumihole emits at least some light. The expression “excited” or “excited” means that the Lumihole emits light continuously or intermittently at a rate perceived by the human eye as a continuous emission of light, or the same color or Intermittent so that multiple lumiphors of different colors perceive the light as a continuous emission of light to the human eye (and as a mixture of the colors if different colors of light are emitted) And / or alternating radiating situations (which may or may not overlap at “on” time).
In the lighting devices described herein, reference to a “group” of solid state light emitters (eg, “first group of solid state light emitters”) refers to a single solid state light emitter or a plurality of solid state light emitters. It can be made of a solid light emitter. Similarly, when referring to a “group” of lumiholes (eg, “first group of lumiholes”), this group may consist of a single lumihole or multiple lumiholes.
Unless defined otherwise, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the subject of the invention belongs. Have In addition, terms such as those defined in commonly used dictionaries should be construed to have a meaning consistent with the meaning of the relevant technology and the context of the specification, and are clearly defined in this disclosure. It will be understood that unless otherwise understood, it is not interpreted in an idealized or overly formal sense. It will also be appreciated by those skilled in the art that a structure or mechanism that is disposed in another adjacent mechanism may have a portion that overlies or is the basis for that adjacent mechanism.
In the lighting device described herein, any combination of elements included in the lighting device can be packaged together (eg, like a light emitting diode package). For example, some embodiments of a lighting device according to the first or second aspect of the present inventive subject matter include (1) at least one of a first group of solid state light emitters and at least one of a first group of lumiholes. (2) at least one of the first group of solid state light emitters and at least one of the second group of lumiholes; or (3) at least one of the first group of solid state light emitters; A package comprising at least one of the groups and at least one of the second group of lumihol. Similarly, some embodiments of the first and second aspects of the present inventive subject matter include a first group of solid state light emitters, a second group of solid state light emitters (if any), a first of Lumihol. And a plurality of packages including any one or more of Lumihol's second group (if any).
Lumiholes housed in each lighting device according to the present inventive subject matter are either by light emitted by a solid state light emitter housed in the device and / or other housed in the device It can be excited by any of the light emitted by the Lumi Hall. Various schemes can be easily conceived and all are included in the subject matter of the present invention. For example, in a device that includes a single solid state light emitter, a first lumihole, and a second lumihole, these lumiholes pass a portion of the light emitted by the solid state light emitter through the first lumihole and the second Can be placed in such a position as to excite the Lumi Hall (eg, “stack”). Instead, all of the light emitted by the solid state emitter can be absorbed by the first or second lumihole (this excites the first and second lumiholes, and the first and second lumiholes). All of the light emitted by the solid state light emitter can be absorbed by the first lumihole (this excites the first lumihole and causes the first lumihole to emit light). . Similarly, some or all of the light emitted by the first lumihole (after being excited as a result of absorbing some or all of the light emitted by the solid state light emitter) is absorbed by the second lumihole. Or pass through the second lumihole. Instead, the lumihole is contacted by the light emitted by the solid state light emitter first with the second lumihole and then with the first lumihole, or with one of the lumiholes and yet not passing through the other lumihole. Can be arranged to touch. Further, the plurality of solid state light emitters, and / or the plurality of first and / or second lumiholes may be such that some or all of the light emitted from each is in contact with a desired component or the like. Can be arranged in any desired manner so as to leave the lighting device without contact with the components.
The solid light emitter used in the device according to the subject of the invention and the lumihole (s) used in the device according to the subject of the invention are from solid light emitters and lumiholes known to the person skilled in the art You can choose. A variety of such solid state light emitters and lumihols are readily available and are well known to those skilled in the art, and any of these can be used. For example, solid state light emitters and lumiholes that can be used in practicing the subject matter of the present invention are disclosed in various documents.
(For example, U.S. Patent Nos. 5,099,052 and 5,200, filed Dec. 22, 2005, which is incorporated herein by reference, entitled "LIGHTING \ DEVICE" (inventor: Gerald H. Negley, docket number 931_003 PRO) Patent Document 7 filed on December 21,
Patent document 8 entitled “SHIFTING SPECTRAL CONTENT IN LEDS BY SPATIALLY SEPARATING LUMIPHOR FILMS” filed on Apr. 24, 2006, which is incorporated herein by reference (Inventors: Gerald H. Negley and Antony Paul van de Ven, docket number 931_006 PRO) and Patent Document 9 filed on January 19, 2007,
Patent Document 10 entitled "LIGHTING DEVICE" filed May 26, 2006 (inventor: Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_009 PRO), filed May 26, 2006, which is incorporated herein by reference. Patent Document 11 filed on May 22, 2007,
Patent document 12 entitled "SOLID STATE LIGHT EMITTING DEVICE AND METHOD OF MAKING SAME" filed May 26, 2006, which is incorporated herein by reference (inventors: Gerald H. Negley and Neal Hunter, Organized No. 931_010 PRO) and Patent Document 13 filed on May 24, 2007,
Patent document 14 entitled “LIGHTING DEVICE AND METHOD OF MAKING” filed May 23, 2006, which is incorporated herein by reference (inventor: Gerald H. Negley, Docket No. 931 — 011 PRO) and 2007 Patent Document 15 filed on May 22,
Patent document 16 entitled "LIGHTING DEVICE AND LIGHTING METHOD" filed on Apr. 20, 2006, which is incorporated herein by reference (inventor: Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_012 PRO) and Patent Document 17, filed on Apr. 18, 2007,
Patent document 18 entitled “LIGHTING DEVICE AND LIGHTING METHOD” filed on August 23, 2006, which is incorporated herein by reference (inventor: Antony Paul van de Ven and Gerald H. Negley, Docket No. 931_034). PRO) and Patent Document 19, filed on August 22, 2007,
Patent Document 20 (Inventor: Gerald H. Negley, Docket No. 931_041 PRO) and 2007, filed Oct. 12, 2006, which is incorporated herein by reference, entitled “LIGHTING DEVICE AND METHOD OF MAKING SAME”. Patent Document 21, filed on October 11,
Patent Document 22 entitled “LIGHTING DEVICE AND LIGHTING METHOD” filed May 8, 2007, which is incorporated herein by reference (Inventor: Antony Paul van de Ven and Gerald H. Negley, Docket No. 931_072) PRO), and patent document 23 entitled “ILLUMINATION DEVICE HAVING ONE OR MORE LUMIPHORS, AND METHODS OF FABRICATING SAME” filed on January 22, 2008, which is incorporated herein by reference (inventor: Gerald H Negley and Antony Paul van de Ven, Docket No. 931_079 NP), patent document 24 filed on October 26, 2007 (Inventor: Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_079 PRO). . ).
Examples of such types of solid state light emitters include inorganic light emitting diodes and organic light emitting diodes, and various types are known in the art.
The one or more luminescent materials can be any desired luminescent material. The luminescent material or materials can be down-converted or up-converted, or can include a combination of both types. For example, the one or more luminescent materials may be selected from phosphors, scintillators, daylight tapes, inks that emit light in the visible spectrum after irradiation with ultraviolet light, and the like.
The luminescent material or materials can be of any desired form. For example, the luminescent material can be embedded in a resin such as a silicone material (ie, a polymer matrix), an epoxy, a substantially transparent glass, or a metal oxide material.
One or more lumiholes may be any lumiholes individually, and various are known to those skilled in the art as described above. For example, the lumihol (s) (or each of them) can include (or consist essentially of, or one of, one or more phosphors). Or it may consist of a plurality of phosphors). The one or more lumihols (or each thereof) may further include one or more highly transmissive (eg, transparent, or substantially transparent, or somewhat diffuse) binders, if desired. Can be (or consist essentially of one or more highly transparent (eg, transparent, or substantially transparent, or somewhat diffuse) binders, or one or more transmissions Made of a binder having a high percentage (eg transparent, substantially transparent, or somewhat diffused), eg made of epoxy, silicone, glass, metal oxide, or other suitable material (E.g., for a given lumihol containing one or more binders, one or more phosphors can be separated into one or more binders). The cell can be). For example, the thicker the Lumihole, the lower the weight percent of the phosphor generally. However, depending on the overall thickness of the Lumihole, the phosphor weight percent can generally be any value, for example, from 0.1 weight percent to 100 weight percent. There are (for example, phosphors formed by subjecting pure phosphors to hot isostatic pressing).
Some embodiments according to the present inventive subject matter include a single lumihole, while other embodiments include multiple lumiholes. When there are multiple lumiholes, the lumiholes are separated and / or can be formed in a desired arrangement. For example, the first group of lumiholes may consist of a single first group lumihole, and the second group of lumiholes may consist of a single second group lumihole. Alternatively, the first group of lumiholes and the second group of lumiholes may together comprise a single lumihole (ie, “first group second group lumihole”). In other embodiments, the lighting device includes at least a first mixed lumihole, wherein the first mixed lumihole includes at least one of the first group of lumiholes and at least one of the second group of lumiholes. it can. For example, when excited, two or more types of luminescent powders that emit light in different ranges as specified herein can be combined and embedded in a single encapsulant structure. And / or may occupy different regions within a single encapsulant structure. Similarly, two or more luminescent elements, each containing each luminescent powder that emits light in different ranges as specified herein when excited, occupy different regions of a single lumihole. sell.
The one or more lumihols (or each thereof) can independently comprise a number of well known additives such as diffusers, scatterers, coloring materials, and the like.
In some embodiments according to the present inventive subject matter, as described in the literature, one or more of the plurality of light emitting diode chips is one together with one or more of the plurality of lumiholes. Encased within the package, the one or more lumiholes within the package are spaced apart from the one or more light emitting diode chips within the package, thereby improving light extraction efficiency (eg, described herein by reference). Patent document 6 (inventor: Gerald H. Negley, reference number 931_003 PRO) entitled "LIGHTING DEVICE" filed on December 22, 2005 and patent filed on December 21, 2006 Reference 7).
Some embodiments according to the present inventive subject matter include two or more lumiholes, as described in the literature, and two or more of these lumiholes can be spaced apart from each other (eg, by reference). Patent document 8 entitled “SHIFTING SPECTRAL CONTENT IN LEDs BY SPATIALLY SEPARATING LUMIPHOR FILMS” filed on April 24, 2006, incorporated herein, (inventors: Gerald H. Negley and Antony Paul van de Ven, No. 931_006 PRO) and Patent Document 9 filed on Jan. 19, 2007).
In some embodiments of the present inventive subject matter, a set of parallel solid state light emitter rows (ie, two or more rows of solid state light emitters arranged parallel to each other) are arranged in series with a power line, thereby , Current is supplied to each column of solid state light emitters through power lines. The expression “column” as used herein means that at least two solid state light emitters are electrically connected in series. In some such embodiments, the relative amount of solid state light emitters in each column is different from one column to the next, for example, the first column has a first percentage of near ultraviolet solid state light emission. The second column includes a second percentage (different from the first percentage) of near ultraviolet solid state light emitters. As a representative example, the first and second columns each contain exclusively (ie, 100%) near ultraviolet solid emitters, and the third column is 50% near ultraviolet solid emitters and 50% 600 nm to 630 nm. (Each of the three columns is electrically connected to a common power line). By doing so, it is possible to easily adjust the relative intensity of light at each wavelength, thereby effectively handling the CIE chromaticity diagram and / or correcting for other changes. is there. For example, when necessary, the intensity of red light can be increased to compensate for a decrease in light intensity generated by a solid light emitter of 600 to 630 nm.
Some embodiments of the present inventive subject matter include one or more current regulators that are electrically connected directly or in a switchable manner to one or more of each row of solid state light emitters. The current regulator can be adjusted to adjust the current supplied to one or more of each row of solid state light emitters. In some of such embodiments, the current regulator (s) are 40 MacAdam ellipses (or 20 MacAdam ellipses) of at least one point on the blackbody locus on the 1931 CIE chromaticity diagram, or 10 MacAdam ellipses, or 5 MacAdam ellipses, or 3 MacAdam ellipses) automatically adjusted to maintain light mixing.
With respect to the mixed light described herein with respect to proximity to a blackbody locus on the 1931 CIE chromaticity diagram and / or 1976 CIE chromaticity diagram (eg, within a MacAdam ellipse), the subject of the present invention is further For such mixed light located near a light on a blackbody locus having a color temperature of 2700K, 3000K, or 3500K, i.e.
The first line segment connects the first point and the second point, the second line segment connects the second point and the third point, and the third line segment connects the third point and the fourth point. Connect the points, the fourth line segment connects the fourth point and the fifth point, the fifth line segment connects the fifth point and the first point, and the first point is 0.4578, 0 The second point has x, y coordinates of 0.4813, 0.4319, and the third point has x, y coordinates of 0.4562, 0.4260. The fourth point has x, y coordinates of 0.4373, 0.3893, the fifth point has x, y coordinates of 0.4593, 0.3944, first, second, Mixed light having x, y color coordinates (ie, close to 2700K) defining points within a region on the 1931 CIE chromaticity diagram surrounded by the third, fourth, and fifth line segments, or 1 segment is the first point and the second Connect the points, the second line segment connects the second point and the third point, the third line segment connects the third point and the fourth point, and the fourth line segment is the fourth point And the fifth point, the fifth line segment connects the fifth point and the first point, the first point has x, y coordinates of 0.4338, 0.4030, The point has x, y coordinates of 0.4562, 0.4260, the third point has x, y coordinates of 0.4299, 0.4165, and the fourth point is 0.4147, 0. Surrounded by first, second, third, fourth, and fifth line segments having x, y coordinates of 3814, and a fifth point having x, y coordinates of 0.4373, 0.3893 A mixed light having x, y color coordinates (ie, close to 3000K), or a first line segment defining the point within the region on the generated 1931 CIE chromaticity diagram. And the second line segment is second Connecting the point and the third point, the third line segment connecting the third point and the fourth point, the fourth line segment connecting the fourth point and the fifth point, and the fifth line segment Connects the fifth point and the first point, the first point has x, y coordinates of 0.4073, 0.3930, and the second point has x, y of 0.4299, 0.4165. The third point has x, y coordinates of 0.3996, 0.4015, the fourth point has x, y coordinates of 0.3889, 0.3690, The point is in the region on the 1931 CIE chromaticity diagram surrounded by the first, second, third, fourth, and fifth line segments having x, y coordinates of 0.4147, 0.3814 The target is mixed light having x and y color coordinates that define a point (ie, close to 3500K).
In some embodiments of the present inventive subject matter, further includes one or more switches electrically connected to one or more of each column, the switches comprising solid state light emission (s) on each column It selectively switches on and off the current flowing through the body.
In some embodiments of the present inventive subject matter, one or more current regulators and / or one or more switches may detect a detected change in output from a lighting device (e.g., deviation from a blackbody trajectory). The current through each column or columns according to the desired pattern (eg, based on day or night time, such as a correlated color temperature change of the combined radiation). Automatically shut off and / or adjust.
In some embodiments of the present inventive subject matter, one or more current regulators and / or one or more are further provided for detecting temperature and correcting such temperature change when the temperature changes. One or more thermistors are included that cause the switches to automatically interrupt and / or regulate the current through each of the one or more columns. In general, light emitting diodes from 600 nm to 630 nm diminish with increasing temperature—in such embodiments, intensity variations caused by such temperature changes can be corrected.
Some lighting devices according to the present inventive subject matter further provide for the supply and control of current through one or more circuit components, eg, at least one of one or more solid state light emitters in the lighting device. Drive electronics to do is included. Those skilled in the art are familiar with various methods for providing and controlling the current passing through a solid state light emitter, and such methods can be used in the devices of the present subject matter. For example, such a circuit includes at least one contact, at least one lead frame, at least one current regulator, at least one power controller, at least one voltage controller, at least one boost, at least one capacitor, And / or can include at least one bridge rectifier, and those skilled in the art are familiar with such components and can easily design suitable circuits to meet desired current characteristics. For example, circuits that may be used in practicing the present subject matter are disclosed in various references.
(For example, Patent Document 25 entitled “LIGHTING DEVICE WITH COOLING” filed on June 1, 2006, which is incorporated herein by reference in its entirety, (Inventor: Thomas G. Coleman, Gerald H. Negley. , And Antony Paul van de Ven, Docket No. 931_007 PRO) and Patent Document 26 filed on January 24, 2007,
Patent document 27 entitled "LIGHTING DEVICE AND METHOD OF LIGHTING" filed May 31, 2006, which is incorporated herein by reference in its entirety (inventor: Gerald H. Negley, Docket No. 931_018 PRO) And Patent Document 28 filed on May 30, 2007,
Patent document 29 entitled “BOOST / FLYBACK POWER SUPPLY TOPOLOGY WITH LOW SIDE MOSFET CURRENT CONTROL” filed on September 13, 2006, which is incorporated herein by reference in its entirety (inventor: Peter Jay Myers, No. 931_020 PRO) and Patent Document 30 entitled “CIRCUITRY FOR SUPPLYING ELECTRICAL POWER TO LOADS” filed on September 13, 2007,
Patent document 31 entitled “DEVICES AND METHODS FOR POWER CONVERSION FOR LIGHTING DEVICES WHICH INCLUDE SOLID STATE LIGHT EMITTERS” filed on June 14, 2007 (inventor: Peter Jay Myers, reference number 931_076 PRO),
Patent Document 32 entitled “SOLID STATE LIGHTING DEVICES AND METHODS OF MANUFACTURING THE SAME” filed on Nov. 28, 2007, which is incorporated herein by reference in its entirety (inventor: Gerald H. Negley, Antony). Paul van de Ven, Kenneth R. Byrd, and Peter Jay Myers, Docket No. 931_082 PRO) and US Pat. No. 5,834,086 filed Apr. 1, 2008, and 2008, which is incorporated herein by reference in its entirety. Patent document 34 entitled "FREQUENCY CONVERTED DIMMING SIGNAL GENERATION" filed on January 23 (inventors: Peter Jay Myers, Michael Harris, and Terry Given, reference number 931_085 PRO) and March 27, 2008 Patent Document 35, filed).
In addition, those skilled in the art are familiar with various mounting structures for many different types of lighting, and any such structures can be used in accordance with the present subject matter.
For example, fixtures, other mounting structures, and finished lighting assemblies that may be used in practicing the present inventive subject matter are disclosed in various references.
(For example, Patent Document 36 entitled “LIGHTING DEVICE” filed on Dec. 21, 2005, which is hereby incorporated by reference in its entirety, (Inventor: Gerald H. Negley, Antonio Paul van de Ven, And Neal Hunter, Docket No. 931_002 PRO) and Patent Document 37 filed on Dec. 20, 2006,
Patent Document 38 (Inventor: Antony Paul van de Ven, Docket No. 931_008 PRO) filed May 5, 2006, which is incorporated herein by reference in its entirety, and 2007. Patent Document 39 filed on May 3,
Patent document 40 entitled "LIGHTING DEVICE AND METHOD OF LIGHTING" filed May 31, 2006, which is incorporated herein by reference in its entirety (inventor: Gerald H. Negley, Antony Paul van de Ven). , And Thomas G. Coleman, Docket No. 931 — 017 PRO) and US Pat.
Patent document 42 entitled “LIGHTING DEVICES, LIGHTING ASSEMBLIES, FIXTURES AND METHODS OF USING SAME” filed on September 18, 2006, which is incorporated herein by reference in its entirety. (Inventor: Antony Paul van de Ven, docket number 931 — 019 PRO) and patent document 43 filed on September 17, 2007,
Patent Document 44 entitled “LIGHTING ASSEMBLIES, METHODS OF INSTALLING SAME, AND METHODS OF REPLACING LIGHTS” filed on September 21, 2006, which is incorporated herein by reference in its entirety. (Inventor: Antony Paul van de Ven and Gerald H. Negley, Docket No. 931 — 021 PRO) and patent document 45 filed on September 21, 2007,
Patent document 46 entitled "LIGHTING DEVICE, ILLUMINATED ENCLOSURE AND LIGHTING METHODS" filed on November 13, 2006, the entirety of which is incorporated herein by reference (Inventor: Gerald H. Negley, Docket No. 931_026) PRO) and Patent Document 47 filed on November 13, 2007,
Patent document 48 entitled "LIGHT ENGINE ASSEMBLIES", filed November 14, 2006, which is incorporated herein by reference in its entirety (inventor: Paul Kenneth Pickard and Gary David Trot, Docket No. 931_036 PRO) And Patent Document 49 filed on November 13, 2007,
Patent document 50 entitled “LIGHTING ASSEMBLIES AND COMPONENTS FOR LIGHTING ASSEMBLIES” filed on Nov. 14, 2006, which is incorporated herein by reference in its entirety (inventors: Gary David Trott and Paul Kenneth Pickard, Organized No. 931_037 PRO) and Patent Document 51 filed on April 18, 2007,
Patent Document 52 entitled “LIGHTING DEVICES AND METHODS OF INSTALLING LIGHT ENGINE HOUSINGS AND / OR TRIM ELEMENTS IN LIGHTING DEVICE HOUSINGS” filed on Oct. 23, 2006, which is incorporated herein by reference in its entirety. Gary David Trot and Paul Kenneth Pickcard, Docket No. 931_038 PRO) and Patent Document 53 filed on Oct. 23, 2007,
Patent document 54 entitled “LED DOWNLIGHT WITH ACCESSORY ATTACHMENT” filed on Nov. 30, 2006, which is incorporated herein by reference in its entirety (inventors: Gary David Trott, Paul Kenneth Pickard, and Ed Adams). , Reference number 931_044 PRO),
Patent document 55 entitled "LIGHT FIXTURES, LIGHTING DEVICES, AND COMPONENTS FOR THE SAME" filed May 7, 2007, which is incorporated herein by reference in its entirety (inventor: Paul Kenneth Pickard, Gary David Trott and Ed Adams, docket number 931_055 PRO) and Patent Document 56 filed on Nov. 30, 2007 (inventor: Gary David Trott, Paul Kenneth Pickard, and Ed Adams, docket number 931_055 NP),
Patent document 57 entitled "LIGHTING FIXTURE" filed May 4, 2007, which is incorporated herein by reference in its entirety (inventors: Paul Kenneth Pickard, James Michael LAY, and Gary David Trot, Organized Number 931_069 PRO),
Patent document 58 entitled “LIGHT FIXTURES AND LIGHTING DEVICES” filed May 7, 2007, which is incorporated herein by reference in its entirety (inventors: Gary David Trott and Paul Kenneth Pickard, Docket No. 931_071). PRO), and U.S. Pat. No. 6,057,097, entitled “LIGHT FIXTURES AND LIGHTING DEVICES”, filed Feb. 15, 2008, which is incorporated herein by reference in its entirety. (Inventors: Paul Kenneth Pickard and Gary David Trott) No. 931_086 PRO) and Patent Document 60 filed on Mar. 18, 2008).
Some lighting devices according to the present inventive subject matter further include one or more power sources, such as one or more batteries and / or solar cells, and / or one or more standard AC power plugs. .
A lighting device according to the present inventive subject matter can include as many solid state light emitters and lumiholes as desired. For example, a lighting device according to the present inventive subject matter can include 50 or more solid state light emitters, or can include 100 or more solid state light emitters and the like.
The visible light source in the subject lighting device of the present invention can be arranged, attached, powered, and attached to the desired housing or fixture in any desired manner. Representative examples of suitable arrangements are described in various documents.
For example, a patent document entitled “FAULT TOLERANT LIGHT EMITTERS, SYSTEMS INCORPORATING FAULT TOLERANT LIGHT EMITTERS AND METHODS OF FABRICATING FAULT TOLERANT LIGHT EMITTERS” filed on Jan. 22, 2008, which is incorporated herein by reference in its entirety. 61 (inventor: Gerald H. Negley and Antony Paul van de Ven, reference number 931_056 NP), patent document 62 entitled “HIGH VOLTAGE SOLID STATE LIGHT EMITTER” filed on January 22, 2007 (inventor: Gerald) H. Negley, Reference Number 931_056 PRO), Patent Document 63 entitled “FAULT TOLERANT LIGHT EMITTERS, SYSTEMS INCORPORATING FAULT TOLERANT LIGHT EMITTERS AND METHODS OF FABRICATING FAULT TOLERANT LIGHT EMITTERS” filed on October 26, 2007 (inventor: Gerald H. Negle y and Antony Paul van de Ven, reference number 931_056 PRO2), and Patent Document 64 (reference number 931_056 PRO3) filed on November 9, 2007,
Patent Document 65 entitled “ILLUMINATION DEVICES USING EXTERNALLY INTERCONNECTED ARRAYS OF LIGHT EMITTING DEVICES, AND METHODS OF FABRICATING SAME” filed on January 22, 2008, which is incorporated herein by reference in its entirety. Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_078 NP), Patent Document 66 filed on Oct. 26, 2007 (Inventor: Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_078 PRO) And Patent Document 67 (reference number 931_078 PRO2) filed on November 9, 2007,
Patent document 23 entitled “ILLUMINATION DEVICE HAVING ONE OR MORE LUMIPHORS, AND METHODS OF FABRICATING SAME” filed Jan. 22, 2008, which is incorporated herein in its entirety by reference. See Negley and Antony Paul van de Ven, Docket No. 931_079 NP), and US Pat. No. 5,099,047, filed Oct. 26, 2007 (inventor: Gerald H. Negley and Antony Paul van de Ven, Docket No. 931_079 PRO)
In addition, those skilled in the art are familiar with various arrangements, mounting methods, power supply devices, housings, and fixtures, such arrangements, methods, devices, housings, and fixtures are It can be used in connection with the subject matter of the present invention. The lighting device of the present inventive subject matter can be electrically connected (or selectively connected) to a desired power source, and those skilled in the art are familiar with a variety of such power sources.
The solid state light emitters and lumiholes can be arranged in a desired pattern.
Devices according to the present inventive subject matter can further include one or more long-life cooling devices (eg, fans having extremely long lifetimes). Such long-life cooling device (s) may include a piezoelectric or magnetoresistive material (eg, MR, GMR, and / or HMR material) that moves air, such as a “Chinese fan”. When cooling a device according to the present inventive subject matter, there typically needs to be a sufficient amount of air to break the boundary layer to induce a temperature drop of 10 to 15 ° C. Thus, in such cases, strong “wind” or high fluid flow (large CFM) is typically not needed (thus eliminating the need for conventional fans).
Furthermore, the device according to the present inventive subject matter can include secondary optics for further modifying the projected nature of the emitted light. Such secondary optics are well known to those skilled in the art and therefore need not be described in detail herein-such secondary optics can be used if necessary. Also good.
Furthermore, a device according to the present inventive subject matter can include a sensor or a charger or camera. For example, a person skilled in the art detects a device or devices that detect one or more occurrences (eg, a motion detector that detects the movement of an object or a person), and triggers light irradiation in response to such detection results. It is familiar and easy to handle. By way of example, a device according to the present inventive subject matter can include a lighting device and a motion sensor according to the present inventive subject matter, and (1) if the motion sensor detects motion while light illumination is taking place. When the security camera is activated, the visual data at or around the position where the motion is detected is recorded. (2) When the motion sensor detects the motion, light irradiation is performed and the motion is detected. The area near the recorded location can be illuminated and the security camera can be activated to record visual data at or around the location where motion was detected.
Embodiments according to the present inventive subject matter are described herein with reference to cross-sectional views (and / or plan views) that are schematic illustrations of idealized embodiments of the present inventive subject matter. As such, it is anticipated that the shape of the figure may differ due to, for example, manufacturing techniques and / or tolerances. Accordingly, embodiments of the present inventive subject matter should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Should. For example, a molded region that is illustrated or described as being rectangular typically has round or curved features. Accordingly, the regions illustrated in the figures are schematic in nature, and their shapes are not intended to represent the exact shape of the region of the device, and are within the scope of the present subject matter. It is not intended to be restricted.
FIG. 4 shows a first embodiment of a lighting device according to the present inventive subject matter.
Referring to FIG. 4, a lighting device 10 is shown. The lighting device 10 includes a heat diffusion element 11 (aluminum molding), an insulating region 12 (a desired material having thermal conductivity and not electrical conductivity, such as silicon carbide, diamond, cubic boron nitride, Various materials such as ceramic, epoxy, or silicone appropriately filled with alumina or the like, including materials well known to those skilled in the art, and high reflective surface 13 (formed in situ by polishing the surface of the aluminum thermal diffusion element) Or made from MCPET® (sold by Furukawa Electric Co., Ltd., a Japanese company), conductive traces 14 made of copper, silver-plated copper (or silver-plated mild steel) Lead frame 15 made of, first and second packaged LEDs 16a and 16b (discussed in more detail below), diffuse light scattering Reflection cone 17 with a surface (made of MCPET (registered trademark)), and a diffusing element 18 (diffusing element 18 performs a light scattering function). The diffusing element 18 is made of glass or plastic and has surface features. The device shown in FIG. 4 further includes a printed circuit board (PCB) 28 with conductive traces 14.
A first packaged LED 16a is shown in FIG. The LED 16a emits light having a peak wavelength in the near-ultraviolet region when in the light irradiation state, and light having a dominant wavelength in the range of about 490 nm to about 555 nm when in the excited state. A radiating lumi hole 35a is included.
A second packaged LED 16b is shown in FIG. The LED 16b includes an LED chip 21 that emits light having a dominant wavelength in a range from about 600 nm to about 630 nm when the light is irradiated (and the LED 16b does not include a lumihole).
The heat spreading element 11 is used to diffuse heat and acts as a heat sink to dissipate the heat emitted from the LED. Similarly, the reflection cone 17 also functions as a heat sink.
The light emitted from the lighting device 10 emitted by the first packaged LED 16a is a first region on the 1931 CIE chromaticity diagram, eg, the first line segment is the first point and the second point. The second line segment connects the second point and the third point, the third line segment connects the third point and the fourth point, and the fourth line segment connects to the fourth point. Connect the fifth point, the fifth line connects the fifth point and the first point, the first point has x, y coordinates of 0.32, 0.40, and the second point Has x, y coordinates of 0.36, 0.48, the third point has x, y coordinates of 0.43, 0.45, and the fourth point is 0.42, 0.42. The fifth point has x, y coordinates of 0.36, 0.38, and in a specific example, for 2850K light, 0.3706, 0.4370, 3400K 0.3550, 0 for light Have x, y color coordinates defining points that lie within the area bounded by the first, second, third, fourth, and fifth line segments, including points having x, y coordinates of 4089 , 1931 corresponding to points on the CIE chromaticity diagram.
The combination of the light emitted from the lighting device 10 emitted by the first packaged LED 16a and the light emitted from the lighting device 10 emitted by the second packaged LED 16b is a 1931 CIE chromaticity diagram. Corresponds to one point on the 1931 CIE chromaticity diagram that is within the ten MacAdam ellipses of at least one point on the upper blackbody locus.
FIG. 7 shows a second embodiment of a lighting device according to the present inventive subject matter. In the second embodiment, instead of the first packaged LED 16a and the second packaged LED 16b, the second embodiment uses an LED chip 46, a first lumihole 53, and a second package. Similar to the first embodiment except that it includes a packaged LED 45 (see FIG. 8 showing a portion of the LED 45) that includes a lumihole 51. The LED chip 46 emits light having a peak wavelength in the near ultraviolet region when in the light irradiation state. The first lumihole 53 emits light having a dominant wavelength in the range of about 490 nm to about 555 nm when in the excited state. The second lumihole 51 emits light having a dominant wavelength in the range of about 600 nm to about 630 nm when in the excited state.
FIG. 9 shows a third embodiment of a lighting device according to the present inventive subject matter. In the third embodiment, instead of the second packaged LED 16b, in the third embodiment, an LED chip 31 that emits light having a peak wavelength in the near-ultraviolet region when in a light irradiation state, And including a packaged LED 16c (shown in FIG. 10) that includes a lumihole 45a that emits light having a dominant wavelength in the range of about 600 nm to about 630 nm when excited. Similar to one embodiment.
Referring to FIG. 11, which is an electrical schematic diagram of a portion of the circuitry within the device shown in FIG. 9, the lighting device includes a first row 41 of LEDs 16a, a second row 42 of LEDs 16c, and LEDs 16a and LEDs. A third row 43 containing 16c mixes is included, these rows being arranged in parallel with each other and electrically connected to a common power line 44. Each column includes a respective current regulator 45, 46, 47.
In FIG. 12, the first line segment connects the first point and the second point, the second line segment connects the second point and the third point, and the third line segment is the third point. And the fourth point, the fourth line segment connects the fourth point and the fifth point, the fifth line segment connects the fifth point and the first point, and the first point is 0 The second point has x, y coordinates of 0.36, 0.48, and the third point has x, y coordinates of 0.43, 0.45. , Y coordinates, the fourth point has x, y coordinates of 0.42, 0.42, and the fifth point has x, y coordinates of 0.36, 0.38, first , The region 50 on the 1931 CIE chromaticity diagram surrounded by the second, third, fourth, and fifth line segments.
In the case of residential indoor lighting, the color temperature is usually preferably from 2700k to 3300k, and in the case of outdoor floodlights for colorful scenes, a color temperature close to daylight 5000K (4500-6500K) is preferable.
Two or more structural parts of the lighting devices described herein can be integrated. The structural part of the lighting device described herein can be divided into two or more parts (and can be combined if necessary).
Moreover, although some embodiments of the present inventive subject matter have been illustrated with reference to specific combinations of elements, various other combinations can be implemented without departing from the teachings of the present inventive subject matter. Can do. Accordingly, the subject matter of the present invention should not be construed as limited to the particular exemplary embodiments illustrated herein, but multiple combinations of the elements of the various illustrated embodiments. May be included.
Many variations and modifications may be made by those skilled in the art, taking advantage of the advantages of the present disclosure, without departing from the spirit and scope of the inventive subject matter. Accordingly, the illustrated embodiments are described for purposes of illustration only and are to be construed as limiting the subject matter of the invention as defined by the following claims. I have to understand that. Thus, the following claims are not limited to literally described combinations of elements, but are all intended to perform substantially the same function in substantially the same way to obtain substantially the same result. Should be construed as including equivalent elements. Accordingly, these claims should be considered to include what is specifically illustrated and described above, what is conceptually equivalent, and which incorporates the essential ideas of the inventive subject matter.
With the first group of Lumi Hall,
Each of the first group of the solid state light emitters emits light having a peak wavelength in the near-ultraviolet region in the light irradiation state,
Each of the first group of Lumiholes emits light having a dominant wavelength in the range of about 490 nm to about 555 nm when excited;
When each of the first group of solid state light emitters is in a light irradiation state, (1) the light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) the number of the lumiholes Mixing with the light emitted from the lighting device emitted by a group of first, when there is no additional light, the first line segment connects the first point and the second point, A line segment connects the second point and the third point, a third line segment connects the third point and the fourth point, and a fourth line segment connects the fourth point and the fifth point. A fifth line segment connecting the fifth point and the first point, the first point having x, y coordinates of 0.32, 0.40, The point has x, y coordinates of 0.36, 0.48, the third point has x, y coordinates of 0.43, 0.45, and the fourth point is 0.42. 0 The first line segment, the second line segment, and the third line having 42 x and y coordinates, and the fifth point having x and y coordinates of 0.36 and 0.38. Resulting in mixed light illumination having x, y color coordinates defining points within a region on the 1931 CIE chromaticity diagram surrounded by the minute, the fourth line segment, and the fifth line segment. And lighting device.
The lighting device of claim 1, wherein the first group of solid state light emitters comprises a single solid state light emitter.
The lighting device of claim 1, wherein the first group of solid state light emitters includes a plurality of solid state light emitters.
4. The lighting device according to any one of claims 1 to 3, wherein at least one of the first group of solid state light emitters comprises a light emitting diode.
The lighting device includes at least a first package, the first package including at least one of a first group of the solid state light emitters and at least one of a first group of the lumiholes. The lighting device according to any one of claims 1 to 4.
Each of the first group of solid state light emitters emits light having a peak wavelength in the range of about 380 nm to about 430 nm when in the light irradiation state. The lighting device according to claim 1.
Each of the first group of solid state light emitters emits light having a peak wavelength in the range of about 380 nm to about 410 nm in the light-illuminated state. The lighting device according to claim 1.
8. The lighting device of claim 7, wherein each of the first group of lumiholes emits light having a dominant wavelength of about 490 nm when excited.
7. A lighting device according to any one of the preceding claims, wherein each of the first group of lumiholes emits light having a dominant wavelength of about 490 nm when excited.
10. The lighting device of any one of claims 1 to 9, wherein the lighting device further comprises at least one light emitter that emits light having a dominant wavelength in a range of about 600 nm to about 630 nm. Lighting device.
When each of the first group of solid state light emitters is in a light irradiation state, (1) light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) of the lumihole The illumination emitted by the at least one illuminant that emits light emitted from the illumination device emitted by a first group and (3) light having a dominant wavelength in the range of about 600 nm to about 630 nm. Mixing with light emitted from the device defines one point within the 20 MacAdam ellipse of at least one point on the blackbody locus on the 1931 CIE chromaticity diagram in the absence of additional light The lighting device of claim 10, wherein the lighting device provides combined illumination with x, y coordinates on a 1931 CIE chromaticity diagram.
The lighting device includes at least a first package, the first package having at least one of the first group of solid state light emitters and light having a dominant wavelength in a range from about 600 nm to about 630 nm. 12. A lighting device according to claim 10 or 11, comprising at least one of the at least one light emitter that emits.
The lighting device includes at least a first package, the first package being at least one of the first group of solid state light emitters, at least one of the first group of the lumiholes, and from about 600 nm to about 12. A lighting device according to claim 10 or 11, comprising at least one of the at least one light emitter emitting light having a dominant wavelength in the range of up to 630 nm.
14. The at least one light emitter that emits light having a dominant wavelength in the range of about 600 nm to about 630 nm comprises at least one solid state light emitter. Lighting device according to.
15. The lighting device of claim 14, wherein at least one of the at least one light emitter that emits light having a dominant wavelength in a range of about 600 nm to about 630 nm includes a light emitting diode.
16. The at least one illuminant that emits light having a dominant wavelength in the range of about 600 nm to about 630 nm comprises at least one lumihole. Lighting devices.
The lighting device includes at least a first packaged solid state light emitter and a second packaged solid state light emitter;
The first packaged solid state light emitter includes a first one of the first group of solid state light emitters and a first one of the first group of the lumiholes;
17. The illumination according to any one of claims 1 to 16, wherein the second packaged solid state light emitter comprises a second one of the first group of solid state light emitters. device.
18. The lighting device according to any one of the preceding claims, wherein the lighting device further comprises an encapsulant and takes the form of a packaged solid state light emitter.
The lighting device further includes at least a first power line;
When energy is supplied to the first power line, (1) light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) by the first group of lumi holes. The mixing with the emitted light from the lighting device is such that, in the absence of additional light, the first line segment connects the first point and the second point, and the second line segment is Connecting the second point and the third point, the third line segment connecting the third point and the fourth point, the fourth line segment connecting the fourth point and the fifth point, A fifth line segment connects the fifth point and the first point, the first point has x, y coordinates of 0.32, 0.40, and the second point is 0. 0. The third point has x, y coordinates of 0.43, 0.45, and the fourth point has 0.42, 0.42. x, The fifth point has x, y coordinates of 0.36, 0.38, the first line segment, the second line segment, the third line segment, the fourth line And a mixed light illumination having x, y color coordinates defining points within a region on the 1931 CIE chromaticity diagram surrounded by the fifth line segment. The lighting device according to any one of 1 to 18.
The lighting device further includes a second group of lumiholes that, when excited, emit light having a dominant wavelength in the range of about 600 nm to about 630 nm;
When energy is supplied to the first power line, (1) light emitted from the lighting device emitted by the first group of solid state light emitters and (2) emitted by the first group of lumiholes. Mixing of the light emitted from the illuminated lighting device and (3) the light emitted from the lighting device emitted by the second group of lumihols, in the absence of additional light, 1931 CIE color Providing combined illumination with x, y coordinates on the 1931 CIE chromaticity diagram defining one point within 20 McAdam ellipses of at least one point on the blackbody locus on the degree diagram The lighting device according to claim 19.
The lighting device further includes a second group of solid state light emitters that emit light having a dominant wavelength in the range of about 600 nm to about 630 nm in the light illumination state;
When energy is supplied to the first power line, (1) light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) by the first group of lumi holes. The mixing of the emitted light emitted from the lighting device and (3) the light emitted from the lighting device emitted by the second group of solid state light emitters is performed when no additional light is present. A combined illumination with x, y coordinates on the 1931 CIE chromaticity diagram that defines one point within the 20 MacAdam ellipse of at least one point on the blackbody locus on the 1931 CIE chromaticity diagram 20. A lighting device according to claim 19, wherein said lighting device is provided.
When energy is supplied to the first power line, the mixture of all light emitted from the lighting device from solid state emitters and lumiholes emitting light having a dominant wavelength outside the range of 600 nm to 700 nm is The first line segment connects the first point and the second point, the second line segment connects the second point and the third point, and the third line segment connects with the third point. Connecting a fourth point, a fourth line segment connecting the fourth point and the fifth point, a fifth line segment connecting the fifth point and the first point, and The point has x, y coordinates of 0.32, 0.40, the second point has x, y coordinates of 0.36, 0.48, and the third point is 0.43, X, y coordinates of 0.45, the fourth point has x2, y coordinates of 0.42,0.42, and the fifth point has x6,0.36,0.38, has y-coordinate Within the region on the 1931 CIE chromaticity diagram surrounded by the first line segment, the second line segment, the third line segment, the fourth line segment, and the fifth line segment 22. Illumination device according to any one of claims 19 to 21, having x, y color coordinates defining a point.
The lighting device further includes a second group of lumiholes,
Each of the second group of Lumiholes emits light having a dominant wavelength in the range of about 600 nm to about 630 nm when excited,
The first group of the lumihole and the second group of the lumihole are composed of a single first group-second group of lumiholes. The lighting device according to one item.
The lighting device includes at least a first mixed lumihole;
23. Any of the preceding claims, wherein the first mixed lumihole comprises at least one of a first group of the lumiholes and at least one of a second group of the lumiholes. The lighting device according to claim 1.
25. A lighting device according to any one of claims 1 to 24, wherein when each of the first group of solid state light emitters is in a light illuminated state, the mixture has a CRI Ra of at least 85. .
A lighting method,
Causing the first group of solid state light emitters to emit light, each of the first group of solid state light emitters emitting light having a peak wavelength in the near ultraviolet region; and
Exciting a first group of lumiholes, each of the first groups of lumiholes emitting light having a dominant wavelength in the range of about 490 nm to about 555 nm;
(1) mixing of light emitted from the lighting device emitted by the first group of solid state light emitters and (2) light emitted from the lighting device emitted by the first group of lumiholes. In the absence of additional light, the first line segment connects the first point and the second point, the second line segment connects the second point and the third point, and the third line The line segment connects the third point and the fourth point, the fourth line segment connects the fourth point and the fifth point, and the fifth line segment connects the fifth point and the fifth point. 1 points, the first point has x, y coordinates of 0.32, 0.40, the second point has x, y coordinates of 0.36, 0.48, The third point has x, y coordinates of 0.43, 0.45, the fourth point has x, y coordinates of 0.42, 0.42, and the fifth point is 0.36, 0.38 1931 CIE chromaticity diagram surrounded by the first line segment, the second line segment, the third line segment, the fourth line segment, and the fifth line segment, having y-coordinates A method comprising providing mixed light illumination having x, y color coordinates defining points lying in the upper region.
27. The method of claim 26, wherein at least one of the first group of solid state light emitters comprises a light emitting diode.
28. A method according to claim 26 or 27, wherein the light emitted from the first group of solid state light emitters excites the first group of lumiholes.
The method further includes exciting a second group of lumiholes, each of the second group of lumiholes emitting light having a dominant wavelength in the range of about 600 nm to about 630 nm. 29. A method according to any one of claims 26 to 28.
(1) light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) light emitted from the lighting device emitted by the first group of lumi holes (3). ) The mixing of light emitted from the lighting device emitted by the second group of lumi holes is at least one on the blackbody locus on the 1931 CIE chromaticity diagram in the absence of additional light. 30. The method of claim 29, wherein the method provides combined light illumination having x, y coordinates on a 1931 CIE chromaticity diagram defining points that are within 20 McAdam ellipses of one point.
31. A method according to claim 29 or 30, wherein the light emitted from the first group of solid state light emitters excites the second group of lumiholes.
32. The light emitted from the first group of solid state light emitters excites the first group of the lumiholes and the second group of the lumiholes. The method according to item.
The method further includes irradiating a second group of solid state light emitters, each of the second group of solid state light emitters emitting light having a dominant wavelength in the range of about 600 nm to about 630 nm. 33. A method as claimed in any one of claims 26 to 32.
(1) light emitted from the lighting device emitted by the first group of solid state light emitters, and (2) light emitted from the lighting device emitted by the first group of lumi holes (3). ) The mixture of light emitted from the lighting device emitted by the second group of solid state light emitters is on the black body locus on the 1931 CIE chromaticity diagram in the absence of additional light 35. The method of claim 33, wherein the method provides combined illumination with x, y coordinates on a 1931 CIE chromaticity diagram that defines points within 20 McAdam ellipses of at least one point.
35. A method according to claim 33 or 34, wherein at least one of the second group of solid state light emitters comprises a light emitting diode.
36. A method according to any one of claims 26 to 35, wherein the mixing has a CRI Ra of at least 85.
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PCT/US2008/063027 WO2008137977A1 (en) 2007-05-08 2008-05-08 Lighting device and lighting method
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JP2010507648A Pending JP2010527156A (en) 2007-05-08 2008-05-08 Lighting device and lighting method
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