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Lighting device and projection system using same

A technology for lighting devices and projection systems, applied in projection devices, optics, instruments, etc., can solve the problems of unsuitable miniaturization, bulky, and difficult to overcome heat dissipation problems.

Inactive Publication Date: 2009-07-15
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the above-mentioned lighting device is used in a miniature lighting device, especially a portable micro-projector, it will be too bulky and not suitable for miniaturization. In addition, the problem of heat dissipation is difficult to overcome, and the life of the light source will be shortened.

Method used

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  • Lighting device and projection system using same
  • Lighting device and projection system using same
  • Lighting device and projection system using same

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Embodiment Construction

[0078] The invention discloses a homogeneous lighting device and projection system, which utilizes multiple light sources through multi-channel light integrator tubes and lighting lens groups to simultaneously achieve the effects of light homogenization and light mixing. In addition, the technology of circular and spherical light source distribution is applied to the heat dissipation part of the lighting device, which can greatly increase the heat dissipation area, and use the heat conduction mechanism to the casing to further improve the heat dissipation effect, which can also increase the life of the lighting device. This kind of lighting device and projection system can be used in various miniature display panels, such as liquid crystal display (Liquid Crystal Display, hereinafter referred to as "LCD") panels, silicon liquid crystal (Liquid Crystal on Silicon, hereinafter referred to as "LCoS") panels and digital optical Processing (Digital Light Processing, hereinafter refe...

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Abstract

The invention relates to an illuminator and a projection system using the illuminator. And the illuminator comprises plural light source modules and multichannel light integrating tube, where the multichannel light integrating tube has plural light channels, each having a light guide part for light source and corresponding to a light source module, and the light guide part has reflecting surface to collect the light source through the light channel into the multichannel light integrating tube and so as to use as the output of the illuminator.

Description

technical field [0001] The invention relates to an illumination device and a projection system, and in particular to an illumination device and a projection system with multiple light source channels. Background technique [0002] Portable pico projectors are bound to become the mainstream trend in the personal digital market in the future, but they must be matched with low-cost and effective optical engines. A general light-emitting diode (Light Emitting Diode, hereinafter referred to as "LED") projector is used in a way that a group of LEDs are arranged in an array to increase the required total lumens (Luminance), thereby increasing the projected brightness. For example please refer to figure 1 , in US Patent Application Publication No. 2003 / 0147055, LED arrays are used to increase the total lumens and average brightness. As shown in the figure, the lighting device 100 includes an LED array 120 composed of a plurality of light emitting diode units 110 . The light is se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20G03B21/00
Inventor 郭晃祯曾志翔
Owner IND TECH RES INST