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Illumination system of led for projection display

A projection system and lamp source technology, applied in the field of projection systems, can solve problems such as large size, difficulty in dissipating light source heat, and difficulty in alignment

Inactive Publication Date: 2009-02-11
HIMAX DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the configuration of single light path, the disadvantage is that since the LEDs of various colors are packaged together, the heat generated by the light source will be difficult to dissipate and the brightness will be insufficient
like figure 2 The three optical path configuration shown can solve the shortcomings of the single optical path configuration, but it often makes the size larger and the alignment during assembly is more difficult

Method used

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  • Illumination system of led for projection display
  • Illumination system of led for projection display
  • Illumination system of led for projection display

Examples

Experimental program
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Embodiment Construction

[0034] Please refer to image 3 , which is a schematic diagram of a light source device according to a preferred embodiment of the present invention. Such as image 3 As shown, the light source device 100 includes a first light source module 110 , a second light source module 120 and a dichroic light splitting element 130 .

[0035] The first light source module 110 has a first carrier 111 and a plurality of first color light emitting units 113 on the first carrier 111 for providing a first (non-polarized) light beam L1. The second light source module 120 has a second carrier 121 and a plurality of second color light emitting units 123 and a plurality of third color light emitting units 124 located on the second carrier 121, and is used to provide a second (non-polarized) light beam L2. Moreover, the first light source module 110 and the second light source module 120 respectively include a light concentrating element 115 and 125, which are adjacent to the light emitting un...

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PUM

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Abstract

An illumination device and a projection system using the same are provided. The illumination device comprises a first light source module, a second light source module and a dichroic element. The first light source module comprises a first carrying board and a plurality of first light-emitting units disposed thereon for providing a first light beam. The second light source module comprises a second carrying board and a plurality of second and third light-emitting units disposed thereon for providing a second light beam. The dichroic element has a first side, a second side and a light output side. The first and the second light source modules are respectively optically aligned with the first side and the second side of the dichroic element, wherein the dichroic element provides a third light beam to the light output side by chromatically combining the first light beam and the second light beam. The illumination device has a new LED arrangement to reduce the size and provide a higher illumination and thermal radiation.

Description

technical field [0001] The present invention relates to a light source device and a projection system using the same, and in particular to a light-emitting diode (light-emitting diodes, LEDs) light source device and a projection system using the same. Background technique [0002] In today's commodities, the light source devices of the projection system can be roughly divided into several types. One is the light source device based on the metal halide lamp, and the other is the ultra-high pressure mercury lamp (ultra-high pressure mercury lamp). lamp) light source device. However, the materials used in these two light source devices are toxic, and the devices are large in size, low in color saturation and short in service life. Therefore, it is a new type of projection system that uses light-emitting diodes with the advantages of no mercury, power saving, small size, pressure and shock resistance, wide color gamut, high color saturation, long life, no converter (Inverter) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B27/10G02B27/28F21V5/00F21Y101/02G03B21/00
CPCG03B21/2033G03B21/2013H04N9/3197G03B21/20G03B21/208G03B33/12G03B21/16H04N9/315
Inventor 陈俊民范姜冠旭陈燕晟
Owner HIMAX DISPLAY INC