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Dust detector of projection lens and dust remover

A projection lens and dust detection technology, applied in the field of data processing, can solve problems such as differences in judgment standards, heavy detection workload, and impact on dust detection effects, achieving high accuracy and improving efficiency

Active Publication Date: 2017-05-10
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to adopt a regular manual inspection plan in the current detection process of projection lens dust, and the detection workload is heavy, and because each system is in a different environment, the corresponding inspection personnel have different judgment standards in the detection process. difference, thereby affecting the technical problem of dust detection effect, providing a dust detection device and a dust removal device for a projection lens

Method used

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  • Dust detector of projection lens and dust remover
  • Dust detector of projection lens and dust remover
  • Dust detector of projection lens and dust remover

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Embodiment Construction

[0019] The specific implementations of the dust detection device and the dust removal device for the projection lens provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0020] refer to figure 2 , figure 2 Shown is a schematic structural diagram of a dust detection device for a projection lens in an embodiment, including: a light emitting assembly 11, a light intensity detector 12 and a microprocessor 13;

[0021] The light-emitting assembly 11 and the light intensity detector 12 are respectively arranged on one side of the projection lens 20 through a bracket, and the microprocessor 13 is respectively connected to the light-emitting assembly 11 and the light intensity detector 12;

[0022] The light-emitting component 11 emits light to the lens 21 of the projection lens 20, and the light intensity detector 12 detects the light intensity of the light reflected by the lens after the lens 21 receives the light emit...

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Abstract

The invention relates to a dust detector of a projection lens and a dust remover; the dust detector of the projection lens comprises a lighting component, a light intensity detector and a microprocessor; the lighting component and the light intensity detector are arranged at one side of the projection lens through a bracket; the microprocessor is respectively connected with the lighting component and the light intensity detector; the lighting component emits ray to the lens of the projection lens; the light intensity detector detects the ray received by the lens and emitted by the lighting component, and the lens reflects the light intensity of the ray and sends the light intensity to the microprocessor; the microprocessor detects if the light intensity exceeds the preset light intensity threshold value, and outputs the detection result that the projection lens has dust when the light intensity exceeds light intensity threshold value; the device can effectively improves the efficiency of dust detection on the projection lens and has relatively high detection accuracy.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a dust detection device and a dust removal device of a projection lens. Background technique [0002] The rear projection splicing display wall is a projection display product that requires extremely high display image quality. The rear projection splicing display wall includes multiple display units. The display units can refer to figure 1 As shown, it mainly includes structures such as a box body, a projector, a rear projection screen, and a cooling air duct. The air duct and the air outlet duct, the cooling air duct of the projector (comprising the air inlet duct and the air outlet duct) are arranged on the side of the projector. Due to factors such as the working environment of the rear projection mosaic display wall, even if the projector cabinet is designed to be dust-proof, it is difficult to prevent dust from entering the display unit of the rear projection mosai...

Claims

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Application Information

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IPC IPC(8): G01N21/94B08B5/02B08B15/04
CPCB08B5/02B08B15/04G01N21/94
Inventor 罗振华梁明浩
Owner GUANGDONG VTRON TECH CO LTD
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