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Projector system

A projector and projection lens technology, which is applied in the field of projector systems, can solve the problems of long overall length of the projection lens, low performance of the projection lens, and low light utilization efficiency, etc., and achieve reduced back focus distance, compact structure, and high image quality Effect

Inactive Publication Date: 2006-05-10
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In this way, using a variety of color filters, the light emitted from the lamp is separated into multiple colors and then synthesized. Therefore, the problem it has is that it must rely on the lamp to adjust the red, red, and red colors that make up the image. Proportion of green and blue light
[0011] The problem with this approach is that only a portion of the light is used, and the amount of light of a specific color must be reduced to match the white balance, so light is used very inefficiently
[0022] In this system, a plurality of prisms are arranged between the digital micro-reflector of the display element and the projection lens, and the optical distance is very long. As a result, the overall length of the projection lens becomes very long, so that the size of the system becomes larger, resulting in the projection lens. Poor performance and other issues

Method used

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Embodiment Construction

[0036] Hereinafter, the construction and operation of ideal examples of the present invention will be described with reference to the accompanying drawings.

[0037] Figure 4 is a diagram showing the configuration of the laser projector system according to the present invention.

[0038] As shown in the figure, the laser projector system is composed of the following parts: R, G, B laser light sources 401, 402, 403; Total reflection prisms 404, 405, 406; according to the corresponding color image signal, adjust the light quantity of the R, G, B illumination light source, and reflect it at a specific angle, and display the image R, G, B digital microreflector 407, 408, 409; the first, 2, and 3 projection lens systems 410, 411, 412 located in front of the respective R, G, and B digital microreflectors 407, 408, and 409; The light-splitting and color-synthesizing prism (X-cube prism) 414 that synthesizes the images formed by the reflectors 407, 408, and 409; the fourth projecti...

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Abstract

Disclosed is a laser projector system which comprises: laser sources for generating red, green and blue laser; image display components corresponding to the red, green and blue light; fist projecting lens system for projecting enlarged images of each color; lens for compounding each color image projected out; second lens system for enlarging and projecting compounded image; display screen for imaging.

Description

【Technical field】 [0001] The present invention relates to projector systems, and more particularly, the present invention relates to laser projector systems capable of displaying bright, vivid and natural colors in a reduced size. 【Background technique】 [0002] A projector system refers to a projection display system (Projection Display System) that enlarges a small screen and projects it to display a large screen. [0003] An LCD projector system using a lamp and an LCD is one of the representatives of such projection display devices. [0004] figure 1 A diagram showing the basic configuration of an LCD projector system based on prior art. [0005] Such as figure 1 As shown, in a general LCD projector system, the light emitted by the lamp 101 is collected and irradiated in one direction through a reflector (not shown in the figure), and passes through a red light filter (filter) 102 to pass through the red light. And reflect the green light and the blue light, the red ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/18G03B21/00
Inventor 朴赞英
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD