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Light source module of projector

A technology for a light source module and a projector, applied in the field of projectors, can solve the problems of changing the direction of wind flow, reducing the heat dissipation efficiency, increasing the burden on the fan 10, etc.

Inactive Publication Date: 2008-01-09
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the known grille 16 often changes the air flow direction and affects the air flow speed, often causing an increase in the burden on the fan 10 (usually increasing its rotating speed)
Therefore, the cooling problem of the known projector, especially the cooling problem of the bulb 18, under the hindrance of the grille 16, actually does not help at all to reduce the heat dissipation efficiency.

Method used

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  • Light source module of projector
  • Light source module of projector
  • Light source module of projector

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Embodiment Construction

[0022] As shown in FIG. 2 , the projector 100 of the present invention is mainly composed of a light source module 110 , an optical engine unit 200 , a projection lens unit 300 and a circuit system unit (not shown in the figure). In the present invention, the cooling method of the light source module 110 is mainly described, and in a preferred embodiment, the light source module 110 preferably uses an ultra-high pressure mercury bulb (UHP). In other embodiments, however, pure xenon bulbs or other high power bulbs may be used. The specific embodiments and steps of the present invention will be further described below with reference to the accompanying drawings.

[0023] Since the light source module 110 is a consumable product, coupled with factors such as usage time, usage environment, or human operation, it is inevitable that the bulb will be exhausted or burst. Therefore, a bottom cover 104 is usually provided on the base 102 of the projector 100 for replacing the light sou...

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Abstract

The invention is a projector's light source module, cooperating with heat radiator and comprising light source device, case, and at least a shield, where the case is arranged at one end of the light source device and equipped with air inlet; the shield is movably arranged on the case and covers the air inlet; when the light source module is mounted with the heat radiator, the shield shifts relative to the air inlet and exposes the air inlet.

Description

technical field [0001] The invention relates to a light source module, in particular to a projector with a movable cover in the light source module. Background technique [0002] With the vigorous development of the projector market, the size of the projector has gradually shrunk from surpassing the size of a notebook computer to the size of a B5 paper. At the beginning, due to the large body of the digital projector, the heat dissipation technology was not difficult. However, when the market demand gradually develops towards smaller models, the complexity of heat dissipation technology and mechanism design increases. [0003] Obviously, small size (or light weight), high brightness, and low noise are the development trends of future projectors. However, the above-mentioned development trend also faces a problem, that is, in terms of small volume, when using the same components, the total calorific value is the same, resulting in an increase in heat dissipation per unit ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/16
Inventor 张耀民吕圣章
Owner BENQ CORP