Method of generating a light output and an elongate cornice lamp for the implementation thereof

The proposed method and device relate to the field of lighting technology and are intended for generating a light output indoors such as to provide uniform lighting. The housing of an elongate cornice lamp is comprised of the following components, fastened to one another: a primary plate for accommodating LED strips which generate a light output, a plate for reflecting the light output, a plate for restricting the light output, and a mounting plate. An electric power supply is disposed inside the cavity of the housing. The necessary number of LEDs is selected and these are mounted on LED strips which are fastened on the primary plates and on the plates for reflecting the light output, the LEDs are connected to the electric power supply, a set of light beams is produced, the luminous intensity of the light beams is controlled, the angles of spatial distribution of the light are modified by additional lenses, the light output is distributed with the aid of the reflecting surfaces, and the dispersion of the light output in unwanted directions is prevented with the aid of the restricting surfaces.

The provided method and device relate to the field of lighting engineering and are intended for using as a Method of generating a light flow and as an elongate cornice lamp for the implementation in office, trade, sport, industrial and other premises, including premises with high humidity and dustiness.

RELATED ART

In order to illustrate the known state of the art in this field the objects protected by the RF patents for inventions No. 2240470, 24099162, 473007, 2502013, 2506492, 2509952 as well as RF patents for utility models No. 2101 147 and No. 154093 could be mentioned. The disadvantages of the known methods and devices are, in particular, their overheating during operation and limited capabilities of the light output control. The closest analog (prototype) to the claimed technical solution for the terms of essential features is the method and device disclosed in the above mentioned description of the patent for utility model No. 154093.

The problem solved by the claimed objects, is in improvement of known methods and devices in order to eliminate their disadvantages and achieve technical result in regard to the expansion of capabilities of a lamp radiation direction diagram control with high uniformity of illumination.

DESIGNATED ON THE FIGURES

“a”—the angle between the main arrangement plate of the LED strips forming light output and the mounting plate.“b”—the angle between the main arrangement plate of the LED strips forming light output and the light output reflection plate.“c”—the angle of transformation via lenses of spatial distribution of the light output.

The main structural assemblies and specific characteristics of the claimed method and device are identified via the list of their designations on the mentioned figures, namely:1. A lamp.2. A profiled lamp housing.3. A main arrangement plate of the LED strips, forming a light output.4. A light output reflection plate.5. A light output limitation plate.6. A lamp housing mounting plate.7. A load-carrying profiled housing area.8. A LED strip.9. LEDs.10. Lenses for transformation of the spatial distribution of the light output.11. A Power supply and a control unit.12. A body cavity for mounting of power supply and a control unit.13. Additional housing cavity for arrangement of electrical wiring.14. Electrical wiring.15. Additional wires, connecting LED strip and the lamp power supply unit.16. An opening for wires in a light output reflection plate.17. An additional LED strip for generation of color or other kind of the lighting effect, for example, soporific.18. A control unit for the additional LED strip.19. A wall.20. A ceiling.21. The distance from the ceiling to the lamp.22. A multiple-core power wire, providing to all possible units of the elongate lamp power supply from one point.23. Light rays from the LED and reflected from the ceiling.24. Lamps without a protective light output limitation plate.25. Light rays from the additional LEDs on the reflection plate and reflected from the wall and the ceiling.26. Dark areas between the LEDs.27. A stylized image of the human eye.28. The LEDs without lenses.29. The LEDs with lenses.30. Wide-angle polar plots of the light radiation direction.31. Narrow-angle polar plots of the light radiation direction.

DETAILED DESCRIPTION AND EXAMPLES OF EMBODIMENTS

When describing in details the method and device (FIG. 1-8), it is inadvisable to fix on their technical and structural features known from the published sources, but only their essential features should be characterized in more details. To achieve the mentioned advantageous effect the method of generating a light output is provided, according to which the LED9quantity is chosen within the range of 10-105pieces, they are mounted on the LED strips8, which are chosen within the range of 1-103pieces, and they are connected to the power supply and the light output control unit11. The LED strips8are secured on the main arrangement plates3in quantity of 1-120 and on the additional arrangement plates in quantity of 1-120, as well as on the light output reflection plates4in quantity 1-120. The angles of the slope to the horizon of the plates3and4with the LED strips8mounted on them are chosen within the range of 5° to 85°, and via assembly of the mounted LEDs9suitable light beams combination is generated.

Luminous intensity in n1part of light beams, chosen in relation to their general quantity n within the range of 1≤(n1+n)/n≤2, is controlled by changing of the electric power, input to the LEDs9within the range of 10-100% of its maximum value. The light spatial distribution angles in n2light beams, chosen in relation to their general quantity n within the range of 1≤(n2+n)/n≤2, are transformed by the additional lenses10within the range of 7°-120°. A light output generated by the light beams combination is diffused by the reflecting surfaces chosen in quantity of 1-120, for example, the plates4, and its distribution in undesirable directions is overlapped by the limiting surfaces chosen in quantity of 1-120, for example, the plates5. Also a light output is redirected by the reflecting surfaces chosen in quantity of 1-120, for example, the plates4, polar plots of light distribution of light beams of LEDs9are selected and adjusted among others with the additional lenses10, achieving non-uniformity of the illumination by the generated light output, not exceeding 5-30% of its maximum value.

Mentioned advantageous effect is also achieved by the provided elongate cornice lamp for the implementation of the claimed method, consisting of an elongate form of rigidly fixed to each other: a main arrangement plate3of the LED strips8with the LEDs9, forming a light output, a light output reflection plate4, a light output limitation plate5, a mounting plate6and a load-carrying profiled housing area7. The plates3,4and6as well as the area7form a cavity12in a housing2for mounting of a power supply and a lamp control unit11in it.

Herewith one end of the profiled housing area7is rigidly connected with the end of mounting plate6and the other end is rigidly connected with the light output reflection plate's4end and the light output limitation plate's5end. Therewith the main arrangement plate3of the LED strips8forming a light output is mounted at an angle “a” within the range of 7°≤a≤70° to the mounting plate6and is mounted at an angle “b” within the range of 80°≤b≤150° to the light output reflection plate4.

To make structural features of the developed lamp1more specific it is expediently to mention that the rigid attachment of the main arrangement plate3for the LED strips8forming a light output, a light output reflection plate4, a light output limitation plate5, a mounting plate6and a load-carrying profiled housing2area7may be formed by punching or extrusion from a monolithic work piece. The quantity of the LED strips8with the LEDs9mounted on the main arrangement plate of a lamp may be selected within the range of 1-120. An additional quantity of the LED strips8with the LEDs9may be arranged on the light output reflection plate4, selected within the range of 1-120.

In the lamp1part n1of the LEDs9, selected in relation to their general quantity n within the range of 1≤(n1+n)/n≤2, may be equipped with the additional lenses10for the transformation of the light output spatial distribution. Herewith the part n2of the lenses10selected in relation to their general quantity n1within the range of 1≤(n2+n1)/n1≤2 may be performed with the angle “c” of transformation of the light output spatial distribution within the range of 7°≤c≤30°. The part n3of the lenses10selected in relation to their general quantity n1within the range of 1≤(n3+n1)/n1≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 10°≤c≤45°, the part n4of the lenses10selected in relation to their general quantity n1within the range of 1≤(n4+n1)/n1≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 15°≤c≤60°, and part n5of the lenses10selected in relation to their general quantity n1within the range of 1≤(n5+n1)/n1≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 10°≤c≤120°.

The variability of the usage of the claimed method features of the lamp structural elements at different combinations of their forms, sizes and quantities mentioned above for the adjustment of the wide-angle30and the narrow-angle31plots of direction and the angular distribution of the light beams23,25and light beams generated by them illustrates the structural design and functioning of the lamp, what is clearly shown on theFIG. 1-8. On theFIG. 1, in particular, a variant of the general view of a lamp with the LED strip8on the main arrangement plate3and its cross-section with the power supply and control unit11, mounted in the cavity12of the housing2of the lamp1, is shown. An additional housing cavity17for the arrangement of the electrical wiring14is arranged in the bottom part of the housing2. Also, for example, additional wires15, connecting the LED strips8and the power supply unit11of the lamp1may be mounted through the opening16in the light output reflection plate4.

On theFIG. 2a variant of the general view of the lamp1with the additional LED strip17on the light output reflection plate4and its cross-section are is shown. The additional control unit18is provided for the additional LED strip17. An illustration of the preferable lamp mounting in its cross-section is shown on theFIG. 3. The lamp is fixed with the mounting plate6on the wall19within a distance21from the ceiling20. In the bottom part of the lamp housing a multiple-core power wire22is shown to which provides current, providing power supply for the whole system of the LEDs9from one point, to all possible units of the elongate lamp.

On theFIG. 4a scheme of generating a light output without usage in the lamp of the LED strip on the reflecting surface is shown. Here the light beams23from the LED and reflected from the reflection surface are shown, for example, from the ceiling. Also the dark areas26between the LEDs are shown, that are eliminated, as shown on theFIG. 5, by using of the LED light beams23, mounted on their main arrangement plate, and the beams25from the additional LEDs on the reflection plate as well as the beams23and25, reflected from the wall and the ceiling.

On theFIG. 6an illustration of the impact of the direct light output from the LEDs without protection of the human eye27field of vision from the lamp24without the protective plate for limitation of the light output is shown. On theFIG. 7an illustration of the elimination of the impact of the direct light output from the LEDs and only the reflected light output with protection of the human eye27field of vision by the protective plate5for limitation of the light beams is shown. An illustration of the generation of the uniform light output with the usage of the LEDs28with different lens types and without them is provided on theFIG. 8: A—without lenses, B—with narrow-range lenses29, C—a combination on the one line of LEDs with narrow-range and wide-range lenses. As a result the wide-angle30and the narrow-angle31polar plots of the light radiation direction are generated with the angle “c” of a transformation by the light output spacious distribution lenses, selected within the range mentioned above, which is shown on theFIG. 8.

As a result, the light output generated by the set of light beams is distributed by the chosen reflecting surfaces and its distribution in undesirable directions is overlapped by limiting surfaces and redirected by reflecting surfaces. Herewith polar plots of the light distribution of the light beams of the LEDs are selected and adjusted among others with additional lenses, and controlled as well, achieving non-uniformity of the illumination by the generated light output, not exceeding 5-30% of its maximum value.

It should be noted that principle of unity of invention is fulfilled in the application as the provided method and the lamp have the same name, serve the same goal, provide an achievement of the same advantageous effect together and are connected by a single inventive conception, characterized by the claims. Herewith the legal protection conception is based on the fact that continuity and interconnection of the provided objects as well as assumed variability of the implementation of specific essential features or their combinations predetermine, among others, non-traditional formulation character of several features. For example, lamp structural features are shown not only by the characteristic of its assemblies and their structural interconnections, but also by, in particular, the angles “c” of the transformation of a spacious distribution of the light output within selected limits.

INDUSTRIAL APPLICABILITY AND ACHIEVEMENT OF THE TECHNICAL RESULT

Therefore, as seen from above, the features mentioned in the claims are essential and purposefully interconnected with each other with generation of their steady combination necessary and sufficient for an achievement of the stated effect of the invention. An achievable technical result, as it was shown by experimental data, can be implemented only by an interconnected combination of the all essential features of the claimed objects, shown in the claims, at any of their values, covered by the claimed claims and satisfying the claimed features. The claimed essential distinctive features were obtained on the basis of creative processing of the conducted studies and experiments, analysis and generalization of them and known from published sources of data, interconnected by the conditions of achieving the technical result specified in the application and as well as using inventive intuition.

The proposed method and the lamp for its implementation do not contain features that cannot be implemented by known technologies and devices. Conformity to the criterion of “industrial applicability” the proposed objects is also proved by absence in the claims of any features that are practically difficult to implement in an industrial scale.

Among other advantages of the described lamp implementing the claimed method it could be noted the relatively low manufacturing cost and attractive ergonomic indicators.