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Light source system and projector

A light source system and light source technology, applied in the field of optics, to avoid losses and improve efficiency

Active Publication Date: 2012-10-10
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excitation light source is used to generate an excitation light
The wavelength conversion device is used to convert the excitation light wavelength into the stimulated light

Method used

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  • Light source system and projector
  • Light source system and projector
  • Light source system and projector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] See image 3 , image 3 It is a structural schematic diagram of the first embodiment of the light source system of the present invention.

[0038] Such as image 3 As shown, the light source system of this embodiment mainly includes an excitation light source 301 , a supplementary light source 302 , a light combination device 303 , a light collection device 304 , a reflection device 305 , a wavelength conversion device 306 , a reflective substrate 307 and a light uniformity device 308 . Wherein, the reflective device 305 includes a curved reflective surface 3051 (for example, a spherical reflective surface or an ellipsoidal reflective surface) and an opening 3052 disposed on the curved reflective surface 3051 . The opening 3052 may be a through hole or a light-transmitting region.

[0039]The excitation light source 301 generates an excitation light 3011 . The supplementary light source 302 generates a supplementary light 3021 . The excitation light 3011 generated ...

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Abstract

The invention relates to a light source system and a projector. An excitation light source is used to generate an excitation light. A wavelength conversion device is used to convert an excitation light wavelength into stimulated light. A first supplement light source is used to generate first supplement light. A first light guidance device is used to guide the first supplement light generated by the first supplement light source to the wavelength conversion device. The wavelength conversion device scatters and partially reflects the first supplement light. A first light collection device is used to collect the first supplement light which is scattered and reflected by the wavelength conversion device. Sizes of the first light guidance device and the first light collection device are arranged so as to satisfy the following condition that a luminous flux of the first supplement light which escapes through the first light guidance device and is scattered and reflected by the wavelength conversion device is less than or equal to 1 / 4 of the luminous flux collected through the first light collection device. Through the above mode, the first supplement light reflected by the wavelength conversion device can be effectively collected so as to increase light extraction efficiency of the light source system.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a light source system and a projection device. Background technique [0002] At present, many applications require the use of high-brightness color light sources, such as stage lights, projection displays, and RGB (red, green, and blue) backlights. Among them, a gas discharge lamp (for example, an ultra-high pressure mercury lamp) is a traditional high-brightness light source used in the field of special lighting and display. However, because mercury is easy to cause environmental pollution, the industry is looking for an environmentally friendly light source to replace the ultra-high pressure mercury lamp. [0003] See figure 1 , figure 1 It is a structural schematic diagram of a light source system in the prior art. Such as figure 1 As shown, the light source system includes an excitation light source 101 , a lens 102 , a color wheel 103 and a driving device 104 . The ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/14G02B27/10G02B7/00F21V13/00G02B7/02
CPCG03B21/20G03B21/204F21V13/00G03B21/28G03B33/06G03B21/14
Inventor 胡飞李屹曹亮亮
Owner APPOTRONICS CORP LTD
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