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Light source structure and projector with same

A technology for projectors and light sources, which is applied to optics, lighting and heating equipment, components of lighting devices, etc., can solve the problems of temperature rise of conductive parts and reduction of service life of projector lamp tubes, so as to avoid temperature rise, The effect of improving the service life

Inactive Publication Date: 2010-02-24
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the infrared rays and ultraviolet rays pass through the reflector of the projector, they are partially reflected into the lamp tube, causing the temperature of the conductive part to rise, thereby reducing the service life of the projector lamp tube

Method used

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  • Light source structure and projector with same
  • Light source structure and projector with same
  • Light source structure and projector with same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0013] Such as figure 1 and figure 2 As shown, the light source structure 100 provided by the first embodiment of the present invention includes a reflector 10 and a lamp tube 20 . The lamp tube 20 includes a wick 21 and a protective shell 22 , and the protective shell 22 covers the outside of the wick 21 .

[0014] The reflector 10 has a fixed end 11 and an open end 12 , the fixed end 11 is fixed on one end of the light tube 20 , and the open end 12 extends divergently along the direction of the other end of the light tube 20 . The lamp tube 20 can emit visible light, ultraviolet rays and infrared rays, and the reflector 10 reflects part of the light emitted by the lamp tube 20 to the outside of the light source structure 100 .

[0015] The lamp 20 is one of a metal halide lamp, a super energy lamp and an ultra-high mercury pressure lamp. In this embodiment, the lamp tube 20 is a metal halide lamp tube. The protective shell 22 is transparent glass.

[0016] The wick 21 ...

no. 2 approach

[0018] Such as image 3 As shown, the light source structure 100' of the second embodiment of the present invention is substantially the same as the light source structure 100 of the first embodiment, except that the protective shell 22' corresponds to the outer surface or the inner surface of the conductive part 211' A reflective material is coated on the surface, and the reflective surface of the reflective material faces the reflective cover 10 . At this time, the surface of the conductive portion 211' may be coated with a reflective material, or may not be coated with a reflective material. In this embodiment, the outer surface of the protective shell 22' corresponding to the conductive part 211' is coated with a reflective material, and the surface of the conductive part 211' is not coated with a reflective material.

[0019] When the light emitted by the light emitting part 210 ′ is partially reflected on the protective shell 22 ′ by the reflector 10 , the reflective ma...

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PUM

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Abstract

The invention provides a light source structure comprising a tube and a reflecting cover arranged outside the tube. The reflecting cover is used for reflecting the light emitted by the tube out of thelight source structure. The tube comprises a wick and a protective casing coating the wick. The wick comprises a light-emitting part and a conducting part. Reflecting materials are coated on at leastone of the surface of the conducting part and the surface of the protective casing, and the surface of the protective casing corresponds to the position of the conducting part. The light source structure of the invention reflects the light reflected onto the conducting part to other places by coating the reflecting materials on the surface of the conducting part or the surface of the protective casing, thus avoiding temperature rise of the conducting part and lengthening the service life of the tube. The invention also provides a projector adopting the light source structure.

Description

technical field [0001] The invention relates to a light source structure and a projector with the light source structure. Background technique [0002] The lamp tube of an existing projector generally includes a light emitting part and a conductive part, and the light emitting part generates a certain amount of infrared rays and ultraviolet rays. The infrared rays and ultraviolet rays are partially reflected into the lamp tube after passing through the reflector of the projector, causing the temperature of the conductive part to rise, thereby reducing the service life of the projector lamp tube. Contents of the invention [0003] In view of this, it is necessary to provide a light source structure that improves the service life of the lamp tube and a projector with the light source structure. [0004] A light source structure includes a lamp tube and a reflector arranged outside the lamp tube, and the reflector is used for emitting the light emitted by the lamp tube to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V23/06F21V7/22F21V15/02G03B21/20
CPCH01J61/045H01J61/0732
Inventor 孙明致黄凯
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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