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LED lamplight projection method and lamplight projection device included in same

A technology of projection device and lighting, which is applied to devices, lighting devices, fixed lighting devices, etc. used in theaters, circuses, etc. Chromatic aberration, the effect of improving light quality

Active Publication Date: 2015-07-01
佛山市百特思舞台设备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings and deficiencies in the prior art, one of the purposes of the present invention is to provide a technical problem that can solve the problem of uneven light color in the traditional light projection method, avoid chromatic aberration at the edge of the projected light spot, improve the quality of light, and An LED light projection method suitable for light mixing of LED light-emitting chips of two or more different colors, and this method is also general for realizing light mixing of more than four colors

Method used

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  • LED lamplight projection method and lamplight projection device included in same
  • LED lamplight projection method and lamplight projection device included in same
  • LED lamplight projection method and lamplight projection device included in same

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Embodiment 1

[0030] This embodiment describes a LED light projection method: the light emitted by LED light-emitting chips with different light-emitting colors is directly incident on the same prism from the same direction, and then reflected several times in the prism and fully mixed before being projected; The prism is an M-face prism, M≥3 and M is a natural number.

[0031] Light travels through the prism and is reflected when it encounters the surface of the medium. Since the light emitted by each LED light-emitting chip has multiple directions, the light of different colors and multiple directions can be fully mixed after multiple reflections, so as to obtain light with uniform color. The light projection method of the present invention can solve the technical problem of uneven light color existing in the traditional light projection method, avoid chromatic aberration at the edge of the projected light spot, and improve light quality. The light projection method of the present invent...

Embodiment 2

[0035] This embodiment describes a light projection device, its structure is as follows figure 1 As shown; including a light source module, a prism 1 and a diffuser plate 2; also includes a bracket 5 and a fixing piece. The light source module includes a substrate 4 and several LED light emitting chips 3 arranged on the substrate 4 . The LED light-emitting chip 3 is arranged on the light source module; the prism 1 is located in front of the LED light-emitting chip 3, and the bottom surface of the prism 1 is opposite to the position of the light source module so that the light emitted by the LED light-emitting chip 3 is reflected in the prism 1 and fully mixed. The diffusion plate 2 is pasted in front of the prism 1 . The prism 1 is arranged on the bracket 5 through a fixing piece.

[0036] There are at least two types of LED light-emitting chips 3 , and different types of LED light-emitting chips 3 have different light-emitting colors. According to the principle of optics, ...

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Abstract

The invention provides an LED lamplight projection method. The LED lamplight projection method is characterized in that light emitted by LED light-emitting chips with different light colors is directly emitted to the same prism in the same direction, and the light is reflected repeatedly in the prism, fully mixed and then projected out, wherein the prism is an M-surface prism, and M is a natural number larger than or equal to 3 The LED lamplight projection method can resolve the technical problem that lamplight color is not uniform in a traditional lamplight projection method, aberration is prevented from occurring at the edges of projection spots, the lamplight quality is improved, and the LED lamplight projection method is suitable for light mixing of LED light-emitting chips of two or more different colors and is universal for mixing of light of four or more colors. The invention further provides a lamplight projection device which is uniform in lamplight color, simple in structure, simple in processing process and capable of reducing the cost.

Description

technical field [0001] The invention relates to the technical field of LED lighting, and more specifically, to an LED light projection method and a light projection device used therefor. Background technique [0002] LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes. The light-emitting colors of LED light-emitting chips are red, blue, green and white; other light-emitting colors are usually formed by superimposing and mixing light of different colors and brightnesses emitted by multiple LED light-emitting chips. For example, purple is jointly excited by red LED light-emitting chips and blue LED light-emitting chips, orange is jointly excited by red LED light-emitting chips and green LED light-emitting chips, and indigo is jointly excit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V5/02F21W131/406
CPCF21S8/00F21V5/02F21V5/08F21V14/00F21W2131/105F21W2131/406
Inventor 吴路凡
Owner 佛山市百特思舞台设备有限公司
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