Improved illumination device

Lighting improvement

The present invention relates to an improvement of a lighting device, in particular, a light-emitting hole is provided in the spherical body reflector so that light can be guided to an appropriate direction to effectively improve the overall light-emitting efficiency.

The general lighting device is designed in such a way as to efficiently guide the illumination direction of the light source and provide people with visual comfort. For the purpose of achieving high-efficiency illumination (reducing the blocking of light), the illumination device mostly has a reflector. In order to direct the light projected on the reflector to the illumination to reduce the light loss caused by the illumination of the non-predetermined illumination, the illumination device has a light mask to reduce the glare of direct glare.

Please refer to the first figure, which is a schematic diagram of a light collecting structure of the prior art. The light guiding structure comprises a lampshade 80 in a trapezoidal shape, which is disposed above an illuminant 81, wherein the lampshade 80 is close to the illuminant. A light incident portion 811 is defined on one side of the 81, and a light exit portion 813 is formed on the opposite side. When the light emitting body 81 generates the projected light, the projected light is projected into the environmental space through the light incident portion 811, wherein the light incident portion 811 is projected into the environment. It is a notch shape for deflecting incident light to increase the intensity of the emitted light.

Referring to the second figure, a white LED illumination system disclosed in U.S. Patent No. 6,234,645, the illumination system having a lampshade 90 and at least three light-emitting diodes 91, each of which emits a pre-presence The visible light of the wavelength is coated with a layer of phosphor powder on the inner wall of the lamp cover 90 to cause a diffusing effect on the light of the light-emitting diode 91 to achieve uniform light.

However, a disadvantage of the prior art is that the lamp cover only passively diffuses the light projected thereon, and does not actively direct the light to an appropriate direction, so the light usage rate is still low, so the illumination system adjusts the brightness. There is no significant effect in terms of partial and improved light source usage.

The main purpose of this creation is to provide an improvement of the illumination structure, in which the principle of diffusion and reflection of light in the spherical body is applied, so that the output beam can be controlled within a certain angle of light and effectively reduce the light loss, so that the overall light extraction efficiency is effectively improved.

Based on the foregoing objective, the illuminating device of the present invention comprises a concentrating cover, which is a spherical body, and the concentrating cover has a light-incident hole and a light-emitting hole for arranging a light-emitting unit. The illuminating unit is configured to generate an emitted light, and the spherical surface of the concentrating cover is a light source reflecting surface, and the emitted light is directly reflected or reflected by the reflecting surface of the light source, and finally projected to the environment through the light exiting hole. space.

Therefore, the present invention can solve the above-mentioned shortcomings of the prior art, and can guide the light to an appropriate direction, thereby effectively improving the brightness and effectively improving the light source utilization rate.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to the third figure, an improved perspective view of the lighting device of the present invention. The illuminating device comprises a concentrating cover 1 and a illuminating unit 3, wherein the concentrating hood 1 is a spherical body, and the interior thereof is a light source reflecting surface 11 , and the concentrating cover 1 is The light-emitting hole 3 is configured to provide the light-emitting unit 3 for providing an incident light. The light-emitting unit 3 includes at least one LED light-emitting component. The opening area of the light exit hole 15 is determined according to the required light exit angle and the light exiting range, wherein the opening area of the light exit hole 15 is at least less than 1/10 of the total sphere area of the light collecting cover 1.

It should be noted that the concentrating cover 1 in this embodiment may also be an ellipsoid or other spherical body having a curved surface, and the light reflecting surface of the concentrating cover 1 may also be formed by a plurality of unit planes 111. For a ball type, please refer to Figure 6.

Referring to the fourth figure, a schematic diagram of the improved illumination path of the illumination device of the present invention. When the light-emitting unit 3 emits an incident light, the first partial light D1 is directly projected into the environmental space through the light-emitting aperture 15, and the second partial light D2 is directly reflected by the light-reflecting surface 11 or is reflected by multiple times. The ambient light is projected through the light exit hole 15, and the aperture area and shape of the light exit hole 15 are preset, and the principle of diffusion and reflection of the light in the spherical body is applied, so that the output light beam can be controlled within a certain light exit angle and effective. Reduce the light loss, so that the overall light extraction efficiency is effectively improved.

Referring to the fifth figure, a schematic diagram of an embodiment of an improved illumination unit of the present illumination device is shown. The illumination unit 3 of the present invention can utilize a plurality of LED light-emitting elements capable of generating different light colors, thereby achieving an output beam having a light mixing effect. As shown in FIG. 5, the light-emitting unit 3 uses three LED light-emitting elements 31, 33 and 35, the central LED light-emitting element 33 generates a white light and for the light-emitting aperture 15, the two LED light-emitting elements 31 and 35 generate a yellow light source. When the three light-emitting elements simultaneously emit light, the intermediate light-emitting element 33 The generated white light portion L1 directly passes through the light exit hole 15 and is further projected into the environmental space, and the yellow light portion L2 generated by the light-emitting elements 31 and 35 on both sides is reflected by the light source reflecting surface 11 one or more times, and finally passes through the light-emitting portion The light exit hole 15 is mixed with the white light portion L1 to generate a warm white output beam portion, which can reduce the glare and soften the color temperature.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modification or alteration of the creation made in the same creative spirit is provided. , should still be included in the scope of protection of this creative intent.

<p>1. . . Condenser</p><p>3. . . Light unit</p><p>11. . . Light source reflecting surface</p><p>13. . . Light hole</p><p>15. . . Light hole</p><p>111. . . Complex unit plane</p><p>31, 33, 35. . . LED light-emitting element</p><p>80. . . lampshade</p><p>81. . . illuminator</p><p>811. . . Light entering department</p><p>813. . . Light exit</p><p>90. . . lampshade</p><p>91. . . Light-emitting diode</p><p>D1. . . First part of the light</p><p>D2. . . Second part of the light</p><p>L1. . . White light part</p><p>L2. . . Yellow light part</p>

The first figure is a schematic diagram of a concentrating structure of one of the prior art.

The second figure is a white LED lighting system of the prior art.

The third figure is a schematic perspective view of the improved illumination device of the present invention.

The fourth figure is a schematic diagram of the improved illumination path of the lighting device of the present invention.

The fifth figure is a schematic diagram of an embodiment of an improved lighting unit of the creative lighting device.

The sixth figure is an improved embodiment of a concentrating hood for the illuminating device of the present invention.