Light mixing, color mixing and light condensing light ray extraction apparatus for lighting

Abstract

The invention discloses a light mixing, color mixing and light condensing light ray extraction apparatus for lighting. The light mixing, color mixing and light condensing light ray extraction apparatus comprises a light ray extractor arranged in a light emitting device, wherein luminous crystals are arranged in the light emitting device; the light ray extractor is connected to one end of the luminous crystals and used for extracting light rays emitted by the luminous crystals, mixing the light rays, mixing colors, condensing the light rays and then emitting the light rays out; the light ray extractor comprises a first condenser and a second condenser; two ends of the first condenser are correspondingly a first light ray input end connected to the luminous crystals, and a first light ray output end connected to the second condenser; the end, facing the first light ray output end, of the second condenser is a second light ray input end, while the other end of the second condenser is a second light ray output end; the first condenser and the second condenser have no optical contact; and the plurality of luminous crystals are arranged in parallel or in series on the side, far away fromthe first condenser, of the first light ray input end.

Description

technical field [0001] The invention relates to the technical field of lighting devices, in particular to a light-mixing, color-mixing, and condensing light extractor for lighting. Background technique [0002] At present, the common light mixing and color mixing scheme is to use a compound parabolic concentrator, a light guide rod at the light source end or a pair of fly-eye lens groups. The compound parabolic concentrator can shrink the divergence angle of the light, and can For light mixing and color mixing, the light guide rod at the light source end is usually a slender optical device, and its cross-section can be any shape, so that the light propagates in it in a way of total reflection, because usually the light input end of the light guide rod at the light source end The size of the output end is different, and sometimes the shape is also different. In the document of patent No. 201721357695.4 previously applied by the company, two light-emitting crystals arranged in...

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Problems solved by technology

[0002] At present, the common light mixing and color mixing scheme is to use a compound parabolic concentrator, a light guide rod at the light source end or a pair of fly-eye lens groups. The compound parabolic concentrator can shrink the divergence angle of the light, and can For light mixing and color mixing, the light guide rod at the light source end is usually a slender optical device, and its cross-section can be any shape, so that the light propagates in it in a way of total reflection, because usually the light input end of the light guide rod at the light source end The size of the output end is different, and sometimes the shape is also different. In the document of patent No. 201721357695.4 previously applied by the company, two light-emitting crystals arranged in parallel or in series are provided. In this case, the compound parabolic concentrator It will lead to very poor light mixing and color mixing effects of the extracted light. In order to increase the light mixing, color mixing and light focusing effects, a reasonable light extractor should be designed

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