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Light source module and stereoscopic projection system

A technology of a light source module and a light source system, which is applied in the field of projectors, can solve the problems affecting the effect of stereoscopic display, the brightness of the left eye image and the right eye image, and the large difference in white balance, so as to improve the display effect, ensure the brightness and White balance for consistent results

Active Publication Date: 2019-02-01
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a light source module and a stereoscopic projection system to solve the problem in the prior art that the brightness and white balance of the left-eye image and the right-eye image are greatly different, which affects the effect of stereoscopic display

Method used

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  • Light source module and stereoscopic projection system
  • Light source module and stereoscopic projection system
  • Light source module and stereoscopic projection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a light source module, the light source module includes a light source system, a light splitting system and a color wheel system, wherein the light source system is used to generate a first light beam at a first time sequence, and generate a second light beam at a second time sequence, Both the first light beam and the second light beam are mixed light containing light in the first polarization state and light in the second polarization state, and the first polarization state and the second polarization state are perpendicular to each other, for example, the light in the first polarization state is S polarization state The light of the second polarization state is the light of the P polarization state, but the present invention is not limited thereto;

[0052] The beam splitting system is used to divide the first light beam into the first polarization state light transmitted along the first optical path and the second polarization state light tra...

Embodiment 2

[0065] This embodiment provides a light source module, the structure of the light source module is substantially the same as that of the light source module provided in Embodiment 1, the difference is that, as image 3 As shown, the light source system in this embodiment includes a first light source 401, a light switch 402 and a control system 403, and the color wheel system is as Figure 4 As shown, the color wheel 404 includes a concentric first ring 501 and a second ring 502, the inner first ring 501 includes a first color segment 5011 with a scattering layer and a second color segment with a red phosphor The color segment 5012, the first color segment 5011 emits blue light under the irradiation of the first polarization state light in the first time sequence, and the second color segment 5012 emits red light under the irradiation of the first polarization state light in the second sequence, and the second ring 502 It includes a third color segment 5021 with yellow phospho...

Embodiment 3

[0077] This embodiment provides a projection system, such as Figure 5 As shown, it includes the light source module provided by Embodiment 1, the light modulation system and the photodetector, wherein the light modulation system is used to sequentially modulate the light of different colors generated by the light source module, so that the light of different colors in the same time sequence can be synthesized The projected left-eye image or right-eye image; the photodetector is used to detect the parameters of the left-eye image and the right-eye image, and feed back the parameters to the light source module, and adjust the first polarization state light in the first beam through the light source module The light intensity ratio of the second polarization state light and the light intensity ratio of the first polarization state light and the second polarization state light in the second light beam are used to ensure that the image brightness and white balance of the left and r...

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Abstract

The present invention provides a light source module and a stereoscopic projection system, comprising: a light source system, used to generate a first light beam at a first time sequence and generate a second light beam at a second time sequence; The light beam is divided into the first polarization state light transmitted along the first optical path and the second polarization state light transmitted along the second optical path, and the second light beam is divided into the first polarization state light transmitted along the first optical path and the second polarization state light transmitted along the first optical path at the second time sequence The second polarization state light transmitted by the second optical path; the color wheel system, the first time sequence is irradiated by the first polarization state light and the second polarization state light divided by the first beam, and the second time sequence is the first polarization state light divided by the second light beam Under the irradiation of the light in the polarized state and the light in the second polarized state, the color wheel system simultaneously generates at least two different colors of light that can be synthesized into white light. The present invention ensures consistency of left and right eye image brightness and white balance by controlling the light intensity ratio of the first polarization state light and the second polarization state light in the first light beam and the second light beam, and improves the display effect of the projection system.

Description

technical field [0001] The invention relates to the technical field of projectors, and more specifically, to a light source module and a stereoscopic projection system. Background technique [0002] At present, stereoscopic display technology has been widely used in places such as movie theaters and home theaters. Moreover, with the development of stereoscopic display technology, people have higher and higher requirements on the fidelity of stereoscopic display. [0003] An existing three-dimensional projection system using spectral separation technology uses a white light bulb as the light source and uses two-stage filters to separate the three primary colors of red, green, and blue for the left eye and the three primary colors of red, green, and blue for the right eye in time sequence. The light is then sent to the left eye and the right eye respectively through the stereo glasses, and after the images of the left and right eyes are superimposed by the human brain, a ster...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B35/26G03B21/20G02B27/26G02B30/25
Inventor 郭祖强王则钦
Owner APPOTRONICS CORP LTD