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Active refrigeration type fully enclosed single-chip LCD projector

A projection optical machine and active cooling technology, which is applied in optics, instruments, projection devices, etc., can solve the problems of incomplete dustproof and low brightness, and achieve the goals of preventing dust from entering optical components, high heat dissipation efficiency, and high projection brightness Effect

Pending Publication Date: 2019-09-27
苏州轰天炮光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the disadvantage of the existing technology is that either it is not completely dust-proof, or it is dust-proof but the brightness is not high. Dust-proof and heat dissipation are a pair of contradictions.

Method used

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  • Active refrigeration type fully enclosed single-chip LCD projector
  • Active refrigeration type fully enclosed single-chip LCD projector
  • Active refrigeration type fully enclosed single-chip LCD projector

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] attached figure 1 The active cooling fully-sealed single-chip LCD projection light machine is based on a typical projection light machine structure. The typical projection light machine mainly includes optical components 3, LED light boards 7 and light funnels 8, wherein the optical components 3 include LCD liquid crystal display Screen 31, Fresnel lens 32, reflector 33 and projection lens 34; light funnel 8 is a bucket-shaped structure that runs through both sides, and LED light board 7 is fixed on its small end, and LCD liquid crystal display 31 is fixed on its big end ; The Fresnel lens 32 is arranged parallel to the LCD liquid crystal display screen 31, and the reflector 33 is arranged obliquely. The working principle of the projection light machine is that the LED lamp panel 7 emits high-brightness light, and the high-brightness light shines on the LCD liq...

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Abstract

The invention discloses an active refrigeration type fully enclosed single-chip LCD projector. The projector includes a cover body and at least one electric refrigeration component, wherein one enclosed space is formed by the cover body and is at least internally accommodated with an optical assembly, a gas circulation path is formed in the enclosed space, the optical assembly includes an LCD screen, the gas in the enclosed space can flow through the LCD screen along the gas circulation path, the electric refrigeration component is embedded and fixed on a cover wall of the cover body, a cold side faces inward, and a hot side is exposed to the outside. The projector is advantaged in that through setting the enclosed space which is formed by the cover body and is used for accommodating the optical assembly, dust is prevented from entering the optical assembly, the electric refrigeration component is arranged on the cover wall, the electric refrigeration component can actively achieve refrigeration to move heat of its cold surface to a hot end to dissipate to the outside of the cover body, heat dissipation efficiency is high, that the LCD screen can work at lower temperatures is guaranteed, and thereby the projector can be made to have high projection brightness.

Description

technical field [0001] The invention relates to the technical field of projection light machine, in particular to an active cooling type fully-sealed single-chip LCD projection light machine. Background technique [0002] For projectors, dust has a great impact on its projection light engine. Dust entering the optical components inside the projector and adhering to components such as Fresnel lenses and reflectors will greatly affect the projection effect. For manufacturers As a result, it will also increase its after-sales maintenance costs. [0003] At this stage, there are two main dust-proof solutions for LCD projection light machines in the industry: one is called a semi-closed light machine, the main feature is that the closed light machine has an air inlet and an air outlet, but the air inlet and outlet The wind is pasted with high-density dust-proof net, which has a certain dust-proof effect, but the dust-proof effect is very limited; the other is a fully-sealed opti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/16
CPCG03B21/14G03B21/16
Inventor 胡先君王宇晟幸小林
Owner 苏州轰天炮光电科技有限公司
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