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Night-vision compatible infrared touch screen adopting induced transmission filter plate

An infrared touch screen, induced transmission technology, applied in optics, optical components, input/output process of data processing, etc., can solve the problems of poor anti-interference ability and high power consumption, improve performance and prevent interference of infrared detectors , Improve the effect of density and adhesion

Inactive Publication Date: 2014-06-11
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a night vision compatible infrared touch screen with strong anti-interference ability and low power consumption, which adopts an inductive transmission filter, to solve the problems of poor anti-interference ability and high power consumption in the existing night vision compatible infrared touch screen. touch screen

Method used

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  • Night-vision compatible infrared touch screen adopting induced transmission filter plate

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Such as figure 1 shown.

[0018] A night-vision compatible infrared touch screen using an induced transmission filter, which includes a 940nm LED emitting tube and a photosensitive detector. The mechanical structure of the night-vision compatible infrared touch screen is the same as that of the prior art. The key of the present invention is that the LED emits The surface of the tube and photosensitive detector is mounted with a multi-layer metal-containing induced transmission filter that can absorb and reflect all light except 930-950nm, or it is directly in front of the LED emitting tube and photosensitive detector A multi-layer metal-containing induced transmission filter that can absorb and reflect all light except 940nm is placed vertically.

[0019] The mechanical structure of the multi-layer metal-containing induced transmission filter a...

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Abstract

The invention relates to a night-vision compatible infrared touch screen adopting an induced transmission filter plate. The night-vision compatible infrared touch screen comprises a 940nm LED (light emitting diode) transmitting tube and a light sensing detector, and the night-vision compatible infrared touch screen is characterized in that the induced transmission filter plate which can completely absorb and reflect light except the light of 930 to 950nm is mounted on the surface of the LED transmitting tube and the light sensing detector and is of a multi-layer metal-containing structure. The radiation of the night-vision compatible infrared touch screen can meet the night-vision compatible requirement, the interference of the visible light and infrared light of the environment on an infrared detector of the touch screen can be prevented, the signal-to-noise ratio of a system can be improved, the system power consumption can be reduced, and the difficulty in software control can be alleviated.

Description

technical field [0001] The invention relates to an infrared touch screen, in particular to a night vision compatible infrared touch screen, in particular to a night vision compatible infrared touch screen using an inductive transmission filter. Background technique [0002] At present, infrared touch screens are more and more used in LCD reinforced display systems to facilitate pilots' acquisition and control of relevant information, and their night vision compatibility characteristics should strictly meet the index requirements. Among them, the LED light of the infrared touch screen will radiate light waves that can be detected by the photocathode in the image intensifier, which will interfere with the overall performance of the NVIS, and in severe cases will cause glare and other effects on the pilot. In order to improve the night vision compatibility of the infrared touch screen, some units apply a layer on the lens in front of the LED light source to absorb near-infr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G02B5/22G02B5/26
Inventor 樊卫华王绪丰胡九龙洪乙又吴金华高慧芳李忠良吴添德刘忠安杨洪宝杨建兵李超
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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