Source: https://patents.google.com/patent/US8403531B2/en
Timestamp: 2018-10-16 13:38:45
Document Index: 737391062

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. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', '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. 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. 61', 'Application No. 60']

US8403531B2 - Lighting device and method of lighting - Google Patents
US8403531B2
US8403531B2 US12277745 US27774508A US8403531B2 US 8403531 B2 US8403531 B2 US 8403531B2 US 12277745 US12277745 US 12277745 US 27774508 A US27774508 A US 27774508A US 8403531 B2 US8403531 B2 US 8403531B2
US12277745
US20090161356A1 (en )
This application claims the benefit of U.S. Provisional Patent Application No. 60/990,439, filed on Nov. 27, 2007, entitled “HIGH EFFICIENCY LAMP” (inventors: Gerald H. Negley and Antony Paul van de Ven), the entirety of which is hereby incorporated by reference as if set forth in its entirety.
This application claims the benefit of U.S. Provisional Patent Application No. 60/990,435, filed on Nov. 27, 2007, entitled “WARM WHITE ILLUMINATION WITH HIGH CRI AND HIGH EFFICACY” (inventors: Antony Paul van de Ven and Gerald H. Negley), the entirety of which is hereby incorporated by reference as if set forth in its entirety.
This application is also a continuation-in-part of U.S. patent application Ser. No. 11/755,153, filed May 30, 2007 (now U.S. Patent Publication No. 2007/0279903), the entirety of which is incorporated herein by reference.
The CRI Ra of efficient white LED lamps is generally low (in the range 65-75) as compared to incandescent light sources (CRI Ra of 100). Additionally, the color temperature for LEDs is generally “cooler” (˜5500K) and less desirable than the color temperature of incandescent or CCFL bulbs (˜2700K). Both of these deficiencies in LEDs can be improved by the addition of other LEDs and/or luminescent material(s) of selected saturated colors. As indicated above, light sources according to the present inventive subject matter can utilize specific color “blending” of light sources of specific (x,y) color chromaticity coordinates (U.S. Patent Application No. 60/752,555, filed Dec. 21, 2005, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul Van de Ven and Gerald H. Negley) and U.S. patent application Ser. No. 11/613,714, filed Dec. 20, 2006 (now U.S. Patent Publication No. 2007/0139920), the entireties of which are hereby incorporated by reference as if set forth in their entireties). For example, light from additional selected saturated sources can be mixed with the unsaturated broad spectrum source(s) to provide uniform illumination without any areas of discoloration; and if desired, for cosmetic reasons, the individual light emitters can be made to be not visible as discreet devices or discreet color areas when the illumination source or aperture is viewed directly.
The chromaticity coordinates and the CIE chromaticity diagrams are explained in detail in a number of books and other publications, such as pages 98-107 of K. H. Butler, “Fluorescent Lamp Phosphors” (The Pennsylvania State University Press 1980) and pages 109-110 of G. Blasse et al., “Luminescent Materials” (Springer-Verlag 1994), both incorporated herein by reference.
FIG. 1 is a sectional view of a specific embodiment of a lighting device according to the present inventive subject matter.
FIG. 2 is a schematic of the power supply in the embodiment depicted in FIG. 1.
FIGS. 3-6 are pictures of an embodiment of a self-ballasted lamp in accordance with the present invention.
U.S. Patent Application No. 60/753,138, filed on Dec. 22, 2005, entitled “LIGHTING DEVICE” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/614,180, filed Dec. 21, 2006 (now U.S. Patent Publication No. 2007/0236911), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/794,379, filed on Apr. 24, 2006, entitled “SHIFTING SPECTRAL CONTENT IN LEDS BY SPATIALLY SEPARATING LUMIPHOR FILMS” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/624,811, filed Jan. 19, 2007 (now U.S. Patent Publication No. 2007/0170447), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/808,702, filed on May 26, 2006, entitled “LIGHTING DEVICE” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/751,982, filed May 22, 2007 (now U.S. Patent Publication No. 2007/0274080), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/808,925, filed on May 26, 2006, entitled “SOLID STATE LIGHT EMITTING DEVICE AND METHOD OF MAKING SAME” (inventors: Gerald H. Negley and Neal Hunter) and U.S. patent application Ser. No. 11/753,103, filed May 24, 2007 (now U.S. Patent Publication No. 2007/0280624), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/802,697, filed on May 23, 2006, entitled “LIGHTING DEVICE AND METHOD OF MAKING” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/751,990, filed May 22, 2007 (now U.S. Patent Publication No. 2007/0274063), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/793,524, filed on Apr. 20, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/736,761, filed Apr. 18, 2007 (now U.S. Patent Publication No. 2007/0278934), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/857,305, filed on Nov. 7, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley and U.S. patent application Ser. No. 11/936,163, filed Nov. 7, 2007 (now U.S. Patent Publication No. 2008/0106895), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/839,453, filed on Aug. 23, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley) and U.S. patent application Ser. No. 11/843,243, filed Aug. 22, 2007 (now U.S. Patent Publication No. 2008/084685), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/851,230, filed on Oct. 12, 2006, entitled “LIGHTING DEVICE AND METHOD OF MAAING SAME” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/870,679, filed Oct. 11, 2007 (now U.S. Patent Publication No. 2008/0089053), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,608, filed on May 8, 2007, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley), and U.S. patent application Ser. No. 12/117,148, filed May 8, 2008 (now U.S. Patent Publication No. 2008/0304261), the entireties of which are hereby incorporated by reference as if set forth in their entireties; and
U.S. patent application Ser. No. 12/017,676, filed on Jan. 22, 2008 (now U.S. Patent Publication No. 2009/0108269), entitled “ILLUMINATION DEVICE HAVING ONE OR MORE LUMIPHORS, AND METHODS OF FABRICATING SAME” (inventors: Gerald H. Negley and Antony Paul van de Ven), U.S. patent application Ser. No. 60/982,900, filed on Oct. 26, 2007 (inventors: Gerald H. Negley and Antony Paul van de Ven), the entireties of which are hereby incorporated by reference as if set forth in their entireties.
In some embodiments according to the present inventive subject matter, one or more of the light emitting diodes can be included in a package together with one or more of the luminescent materials, e.g., one or more lumiphors can be provided in the package and spaced from the one or more light emitting diode in the package to achieve improved light extraction efficiency, as described in U.S. Patent Application No. 60/753,138, filed on Dec. 22, 2005, entitled “LIGHTING DEVICE” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/614,180, filed Dec. 21, 2006 (now U.S. Patent Publication No. 2007/0236911), the entireties of which are hereby incorporated by reference as if set forth in their entireties.
In some embodiments according to the present inventive subject matter, two or more lumiphors can be provided, with two or more of the lumiphors being spaced from each other, as described in U.S. Patent Application No. 60/794,379, filed on Apr. 24, 2006, entitled “SHIFTING SPECTRAL CONTENT IN LEDS BY SPATIALLY SEPARATING LUMIPHOR FILMS” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/624,811, filed Jan. 19, 2007 (now U.S. Patent Publication No. 2007/0170447), the entireties of which are hereby incorporated by reference as if set forth in their entireties.
U.S. Patent Application No. 60/752,555, filed Dec. 21, 2005, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul Van de Ven and Gerald H. Negley) and U.S. patent application Ser. No. 11/613,714, filed Dec. 20, 2006 (now U.S. Patent Publication No. 2007/0139920), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/752,556, filed on Dec. 21, 2005, entitled “SIGN AND METHOD FOR LIGHTING” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/613,733, filed Dec. 20, 2006 (now U.S. Patent Publication No. 2007/0137074), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/793,518, filed on Apr. 20, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/736,799, filed Apr. 18, 2007 (now U.S. Patent Publication No. 2007/0267983), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/793,530, filed on Apr. 20, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/737,321, filed Apr. 19, 2007 (now U.S. Patent Publication No. 2007/0278503), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,596, filed on May 8, 2007, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley), and U.S. patent application Ser. No. 12/117,122, filed May 8, 2008 (now U.S. Patent Publication No. 2008/0304260), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,607, filed on May 8, 2007, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley)and U.S. patent application Ser. No. 12/117,131, filed May 8, 2008 (now U.S. Patent Publication No. 2008/0278940), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,590, filed on May 8, 2007, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley), and U.S. patent application Ser. No. 12/117,136, filed May 8, 2008 (now U.S. Patent Publication No. 2008/0278928), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. patent application Ser. No. 11/948,021, filed on Nov. 30, 2007 (now U.S. Patent Publication No. 2008/0130285), entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley), the entirety of which is hereby incorporated by reference as if set forth in its entirety;
U.S. Patent Application No. 60/978,880, filed on Oct. 10, 2007, entitled “LIGHTING DEVICE AND METHOD OF MAKING” (inventors: Antony Paul van de Ven and Gerald H. Negley) and U.S. Patent Application No. 61/037,365, filed on Mar. 18, 2008, the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/868,986, filed on Dec. 7, 2006, entitled “LIGHTING DEVICE AND LIGHTING METHOD” (inventors: Antony Paul van de Ven and Gerald H. Negley), and U.S. patent application Ser. No. 11/951,626, filed Dec. 6, 2007 (now U.S. Patent Publication No. 2008/0136313), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/891,148, filed on Feb. 22, 2007, entitled “LIGHTING DEVICE AND METHODS OF LIGHTING, LIGHT FILTERS AND METHODS OF FILTERING LIGHT” (inventor: Antony Paul van de Ven, and U.S. patent application Ser. No., and U.S. patent application Ser. No. 12/035,604, filed on Feb. 22, 2008 (now U.S. Patent Publication No. 2008/0259589), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/752,753, filed on Dec. 21, 2005, entitled “LIGHTING DEVICE” (inventors: Gerald H. Negley, Antony Paul van de Ven and Neal Hunter) and U.S. patent application Ser. No. 11/613,692, filed Dec. 20, 2006 (now U.S. Patent Publication No. 2007/0139923), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/809,959, filed on Jun. 1, 2006, entitled “LIGHTING DEVICE WITH COOLING” (inventors: Thomas G. Coleman, Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/626,483, filed Jan. 24, 2007 (now U.S. Patent Publication No. 2007/0171145), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/798,446, filed on May 5, 2006, entitled “LIGHTING DEVICE” (inventor: Antony Paul van de Ven) and U.S. patent application Ser. No. 11/743,754, filed May 3, 2007 (now U.S. Patent Publication No. 2007/0263393), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/809,461, filed May 31, 2006, entitled “LIGHTING DEVICE WITH COLOR CONTROL, AND METHOD OF LIGHTING” (inventor: Antony Paul van de Ven), and U.S. patent application Ser. No. 11/755,149, filed May 30, 2007 (now U.S. Patent Publication No. 2007/0278974), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/809,618, filed on May 31, 2006, entitled “LIGHTING DEVICE AND METHOD OF LIGHTING” (inventors: Gerald H. Negley, Antony Paul van de Ven and Thomas G. Coleman) and U.S. patent application Ser. No. 11/755,153, filed May 30, 2007 (now U.S. Patent Publication No. 2007/0279903), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/809,595, filed on May 31, 2006, entitled “LIGHTING DEVICE AND METHOD OF LIGHTING” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/755,162, filed May 30, 2007 (now U.S. Patent Publication No. 2007/0279440), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/845,429, filed on Sep. 18, 2006, entitled “LIGHTING DEVICES, LIGHTING ASSEMBLIES, FIXTURES AND METHODS OF USING SAME” (inventor: Antony Paul van de Ven), and U.S. patent application Ser. No. 11/856,421, filed Sep. 17, 2007 (now U.S. Patent Publication No. 2008/0084700), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/844,325, filed on Sep. 13, 2006, entitled “BOOST/FLYBACK POWER SUPPLY TOPOLOGY WITH LOW SIDE MOSFET CURRENT CONTROL” (inventor: Peter Jay Myers), and U.S. patent application Ser. No. 11/854,744, filed Sep. 13, 2007 (now U.S. Patent Publication No. 2008/0088248), entitled “CIRCUITRY FOR SUPPLYING ELECTRICAL POWER TO LOADS”, the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/846,222, filed on Sep. 21, 2006, entitled “LIGHTING ASSEMBLIES, METHODS OF INSTALLING SAME, AND METHODS OF REPLACING LIGHTS” (inventors: Antony Paul van de Ven and Gerald H. Negley), and U.S. patent application Ser. No. 11/859,048, filed Sep. 21, 2007 (now U.S. Patent Publication No. 2008/0084701), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/858,558, filed on Nov. 13, 2006, entitled “LIGHTING DEVICE, ILLUMINATED ENCLOSURE AND LIGHTING METHODS” (inventor: Gerald H. Negley) and U.S. patent application Ser. No. 11/939,047, filed Nov. 13, 2007 (now U.S. Patent Publication No. 2008/0112183), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/858,881, filed on Nov. 14, 2006, entitled “LIGHT ENGINE ASSEMBLIES” (inventors: Paul Kenneth Pickard and Gary David Trott) and U.S. patent application Ser. No. 11/939,052, filed Nov. 13, 2007 (now U.S. Patent Publication No. 2008/0112168), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/859,013, filed on Nov. 14, 2006, entitled “LIGHTING ASSEMBLIES AND COMPONENTS FOR LIGHTING ASSEMBLIES” (inventors: Gary David Trott and Paul Kenneth Pickard) and U.S. patent application Ser. No. 11/939,059, filed Nov. 13, 2007 (now U.S. Patent Publication No. 2008/0112170), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/853,589, filed on Oct. 23, 2006, entitled “LIGHTING DEVICES AND METHODS OF INSTALLING LIGHT ENGINE HOUSINGS AND/OR TRIM ELEMENTS IN LIGHTING DEVICE HOUSINGS” (inventors: Gary David Trott and Paul Kenneth Pickard) and U.S. patent application Ser. No. 11/877,038, filed Oct. 23, 2007 (now U.S. Patent Publication No. 2008/0106907), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,384, filed on May 7, 2007, entitled “LIGHT FIXTURES, LIGHTING DEVICES, AND COMPONENTS FOR THE SAME” (inventors: Paul Kenneth Pickard, Gary David Trott and Ed Adams; and U.S. patent application Ser. No. 11/948,041, filed Nov. 30, 2007 (now U.S. Patent Publication No. 2008/0137347)(inventors: Gary David Trott, Paul Kenneth Pickard and Ed Adams), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,030, filed on May 4, 2007, entitled “LIGHTING FIXTURE” (inventors: “Paul Kenneth Pickard, James Michael LAY and Gary David Trott) and U.S. patent application Ser. No. 12/114,994, filed May 5, 2008 (now U.S. Patent Publication No. 2008/0304269), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/916,407, filed on May 7, 2007, entitled “LIGHT FIXTURES AND LIGHTING DEVICES” (inventors: Gary David Trott and Paul Kenneth Pickard), and U.S. patent application Ser. No. 12/116,341, filed May 7, 2008 (now U.S. Patent Publication No. 2008/0278952), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 60/943,910, filed on Jun. 14, 2007, entitled “DEVICES AND METHODS FOR POWER CONVERSION FOR LIGHTING DEVICES WHICH INCLUDE SOLID STATE LIGHT EMITTERS” (inventor: Peter Jay Myers), and U.S. patent application Ser. No. 12/117,280, filed May 8, 2008 (now U.S. Patent Publication No. 2008/0309255), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 61/022,886, filed on Jan. 23, 2008, entitled “FREQUENCY CONVERTED DIMMING SIGNAL GENERATION” (inventors: Peter Jay Myers, Michael Harris and Terry Given) and U.S. Patent Application No. 61/039,926, filed Mar. 27, 2008, the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. Patent Application No. 61/029,068, filed on Feb. 15, 2008, entitled “LIGHT FIXTURES AND LIGHTING DEVICES” (inventors: Paul Kenneth Pickard and Gary David Trott), U.S. Patent Application No. 61/037,366, filed on Mar. 18, 2008, and U.S. patent application Ser. No. 12/116,346, filed May 7, 2008 (now U.S. Patent Publication No. 2008/0278950), the entireties of which are hereby incorporated by reference as if set forth in their entireties;
U.S. patent application Ser. No. 12/116,348, filed on May 7, 2008 (now U.S. Patent Publication No. 2008/0278957), entitled “LIGHT FIXTURES AND LIGHTING DEVICES” (inventors: Paul Kenneth Pickard and Gary David Trott), the entirety of which is hereby incorporated by reference as if set forth in its entirety;
In some embodiments according to the present inventive subject matter, any of the features, e.g., circuitry, as described in U.S. Patent Application No. 60/809,959, filed on Jun. 1, 2006, entitled “LIGHTING DEVICE WITH COOLING” (inventors: Thomas G. Coleman, Gerald H. Negley and Antony Paul van de Ven) and U.S. patent application Ser. No. 11/626,483, filed Jan. 24, 2007 (now U.S. Patent Publication No. 2007/0171145), the entireties of which are hereby incorporated by reference as if set forth in their entireties, can be employed.
FIG. 1 is a schematic diagram of a high efficiency lamp 10 according to the inventive subject matter. The lamp 10 includes a lower housing 12 and an upper housing 14. The lower housing 12 is a cast aluminum housing having fins surrounding the circumference and provides sidewalls of the mixing enclosure 24. The lower housing may be a lower housing of an LR6 fixture from Cree LED Lighting Solutions, Inc., Durham, N.C., with the trim flange removed such that the housing does not extend past the lens 22. Other suitable lower housing materials having similar thermal properties could also be utilized.
The power supply 34 is connected to the Edison connector 20 through wires 36 and 38. A schematic of the power supply 34 is provided in FIG. 2. In FIG. 2, the string of LEDs is connected between pins 1 and 2 of J1. With regard to specific parts, the values in the present embodiment are provided in FIG. 2 for the majority of parts. With regard to parts without values, the diode D2 is a MURS140 from Digikey, the inductor L1 is 3.9 mH and the transistor Q1 is an nFET FQP3N30-ND from Digikey. The HV9910B is a universal high brightness LED driver from Supertex, Inc, Sunnyvale, Calif. The variable resistance R5 is provided to adjust the current through the LED string connected across J1.
The device of FIGS. 1 and 2 was tested by NIST and resulted in the Following performance:
Pictures of the self ballasted lamp are provided in FIGS. 3-6.
In light of the above discussion, solid state lighting lamps are provided that have a wall plug efficiency of at least 85 lm/W, in some embodiments at least 90 lm/W, in other embodiments at least 100 lm/W and in further embodiments at least 110 lm/W. Such lamps may have a CCT of less than about 4000K, in some embodiments about 3500K and in other embodiments about 2700K. Furthermore, the output lumens of such lamps may be 300 lumens or greater, in some embodiments, 500 lumens or greater, in further embodiments about 650 lumens and in additional embodiments greater than 650 lumens.
1. A lighting device comprising at least one solid state light emitter, said lighting device, when supplied with electricity of a first wattage, emitting output light having a wall plug efficiency of at least 85 lumens per watt of said electricity.
6. A lighting device as recited in claim , wherein said lighting device further comprises at least one luminescent material.
15. A lighting device as recited in claim 1, wherein the lighting device further maintains a junction temperature of the solid state light emitter at or below a manufacturer rated junction temperature for a 25,000 hour lifetime in a 25 ° C. ambient temperature.
17. A method of lighting, comprising supplying electricity to a lighting device comprising at least one solid state light emitter, causing the lighting device to emit light at a wall plug efficiency of at least 85 lumens per watt of said electricity.
25. A lighting device as recited in claim 1, wherein said lighting device, when supplied with electricity of a first wattage, emits output light having a wall plug efficiency in the range of from about 85 to about 100 lumens per watt of said electricity.
26. A lighting device as recited in claim 1, wherein said lighting device, when supplied with electricity of a first wattage, emits output light having a wall plug efficiency in the range of from about 85 to about 110 lumens per watt of said electricity.
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US99043507 true 2007-11-27 2007-11-27
US99043907 true 2007-11-27 2007-11-27
US11755153 Continuation-In-Part US8596819B2 (en) 2006-05-31 2007-05-30 Lighting device and method of lighting
US8403531B2 true US8403531B2 (en) 2013-03-26
US12277745 Active 2030-01-28 US8403531B2 (en) 2006-05-31 2008-11-25 Lighting device and method of lighting
US20090161356A1 (en) 2009-06-25 application