Combined dodging and color separation lighting method and component thereof

A lighting method and technology for lighting components, which are applied to optical components, optics, instruments, etc., can solve the problems of difficult coating of dichroic mirrors, low color separation efficiency, and complex optical paths of components, and achieve high light transmission efficiency and color separation efficiency. , flexible structure, small volume effect

Inactive Publication Date: 2007-08-01
QINGDAO NOVELBEAM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dichroic mirror coating is difficult, the color separation efficiency is not high, and the cost is high
In addition, this separate structure will use different focusing lenses for different colors of light, and the optical path of the components is more complicated.

Method used

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  • Combined dodging and color separation lighting method and component thereof
  • Combined dodging and color separation lighting method and component thereof
  • Combined dodging and color separation lighting method and component thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The assembly of this embodiment has the structure shown in FIG. 3 . The light guide rods, dichroic prisms, and reflective ribs constituting the components of this embodiment are made of optical glass, and the incident light guide rod 22 is a straight prism. Incident light guide rod 22, first connection light guide rod 24, second connection light guide rod 253, third connection light guide rod 27, first exit light guide rod 233, second exit light guide rod 263, third exit light guide rod The cross-section of the light rod 283 is rectangular, the dichroic film of the first dichroic prism 23 reflects blue light, transmits green light and red light, the dichroic film of the second dichroic prism 25 reflects green light, transmits red light, and the first reflective prism The reflective film of the second reflective prism 26 reflects green light, and the reflective film of the second reflective prism 28 reflects red light.

Embodiment 2

[0036] The assembly of this embodiment has the structure shown in FIG. 3 . The light guide rods, dichroic prisms, and reflective ribs constituting the components of this embodiment are made of optical glass, and the incident light guide rod 22 is a straight prism. Incident light guide rod 22, first connection light guide rod 24, second connection light guide rod 253, third connection light guide rod 27, first exit light guide rod 233, second exit light guide rod 263, third exit light guide rod The cross-section of the light rod 283 is rectangular, the dichroic film of the first dichroic prism 23 reflects red light, transmits green light and blue light, the dichroic film of the second dichroic prism 25 reflects green light, and transmits blue light, and the first reflective prism 26 The reflective film of the second reflective prism 28 reflects green light, and the reflective film of the second reflective prism 28 reflects blue light.

Embodiment 3

[0038] The assembly of this embodiment has the structure shown in FIG. 4 . The light guide rods, dichroic prisms, and reflective ribs that constitute the components of this embodiment are made of optical glass, and the incident light guide rod 22 is a straight prism 220 whose incident surface is smaller than the outgoing surface. Incident light guide rod 22, first connection light guide rod 24, second connection light guide rod 253, third connection light guide rod 27, first exit light guide rod 233, second exit light guide rod 263, third exit light guide rod The cross-section of the light rod 283 is rectangular, the dichroic film of the first dichroic prism 23 reflects blue light, transmits green light and red light, the dichroic film of the second dichroic prism 25 reflects green light, transmits red light, and the first reflective prism The reflective film of the second reflective prism 26 reflects green light, and the reflective film of the second reflective prism 28 refle...

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Abstract

This invention relates to one cross light even and color division light method, which comprises the following steps: light source sends out visible light through incidence light conductive bar into cross split parts composed of split prism, light conductive bar and sending even red, green and blue light from three exit light conductive surface. This invention has the following advantages: high integration degree, high light transmission rate and split efficiency, color split film and reflection film and compact structure and small volume.

Description

technical field [0001] The present invention relates to a conjoined lighting method and assembly for light uniformity and color separation, to be more precise, relates to a lighting method and assembly for uniform light and color separation by using a conjoined light guide rod and a dichroic prism, which can be applied to LCDs , DLP, LCOS and other projection displays are used as uniform light and color separation components in lighting systems, and belong to the technical field of lighting displays. Background technique [0002] The uniform light and color separation components currently used in projection display technologies such as LCD, DLP, and LCOS have the structure shown in FIG. The light emitted from the illuminant 111 is reflected by the ellipsoid reflector 112 , and converges on the incident surface of the light guide rod 13 after passing through the filter 12 . The filter 12 filters out ultraviolet light and infrared light in the light emitted by the light sourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10G02B27/18G03B21/00
Inventor 辜长明刘啸虎毛荣壮李屹
Owner QINGDAO NOVELBEAM TECH
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