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Dustproof window assembly of laser night vision device and working method thereof

A technology of laser night vision devices and window components, which is applied in the direction of optics, instruments, camera bodies, etc., can solve the problems of complex structural design and blocking laser night vision devices, achieve wide shooting angles, improve light-sensitivity and light capabilities, and improve The effect of laser transmission power

Inactive Publication Date: 2017-09-12
Shandong Huaguang Optoelectronics Co. Ltd.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structural design is complicated, and the mechanical structure of the wiper and the corresponding control drive circuit need to be independently designed. In addition, if the power is suddenly cut off during the operation of the wiper, there is a hidden danger that the wiper will stop and block the imaging of the laser night vision device.

Method used

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  • Dustproof window assembly of laser night vision device and working method thereof
  • Dustproof window assembly of laser night vision device and working method thereof
  • Dustproof window assembly of laser night vision device and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A dust-proof window assembly of a laser night vision device, comprising a laser module window 2 and a camera lens window 3, nano glass 3 is arranged on the laser module window 1 and the camera lens window 2, and the night vision device 4 It also includes a photoresistor window 5 on which a nano glass 3 is arranged, and the surface of the nano glass 3 has a nanoscale network two-dimensional photonic crystal structure. The nano-glass is made of SiOn material, which is processed by wet etching process. HF is used as the etching solution to wet-etch the smooth surface of SiOn. After the laser light passes through the nano-network two-dimensional photonic crystal structure, multi-level refraction occurs, which increases the transmittance of the infrared laser, and the transmittance of the infrared laser is above 99%.

Embodiment 2

[0043] The dustproof window assembly of a kind of laser night vision device as described in embodiment 1, its difference is that, the surface of described nano-glass 3 is the convex circular arc surface 3-1, and described nano-glass 3 is respectively embedded in and arranged on In the laser module window 1 and the camera lens window 2; at the bottom of the laser module window 1 and along the radial direction of the laser module window 1, a first guide groove 1-1 is arranged; A second guide groove 2-1 is provided at the bottom of the lens window 2 and along the radial direction of the lens window 2 of the camera.

Embodiment 3

[0045] The dust-proof window assembly of a laser night vision device as described in Examples 1 and 2, the difference is that the surface of the nano-glass 3 is a plane, and the nano-glass 3 is embedded in the laser module window 1 and the laser module window 1 respectively. In the camera lens window 2; at the bottom of the laser module window 1 and along the radial direction of the laser module window 1, a first guide groove 1-1 is arranged; at the bottom of the camera lens window 2, And a second guide groove 2 - 1 is arranged along the radial direction of the camera lens window 2 .

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Abstract

A dustproof window assembly of a laser night vision device comprises a laser module window and a camera lens window. The laser module window and the camera lens window are provided with nano glass. The surface of the nano glass is provided with a nano-level netted two-dimensional photonic crystal structure. The nano glass is made of SiOn material and is processed by wet etching process. HF is used as the etching solution to performing wet etching of the surface smooth SiOn. After the SiOn material is etched, the nano-level two-dimensional photonic crystal structure appears on the surface, and when laser passes through the nano netted two-dimensional photonic crystal structure, there is a multi-level refraction phenomenon, so that the infrared laser passing rate is increased, and the infrared laser transmission rate is 99% or more.

Description

technical field [0001] The invention relates to a dust-proof window assembly of a laser night vision device and a working method thereof, which belongs to the technical field of laser infrared night vision equipment and relates to visible light, near-infrared optics and display technologies. Background technique [0002] With the rapid development of social economy, people's awareness of safety precautions is gradually increasing, and the requirements for security equipment are getting higher and higher. Compared with ordinary infrared cameras, laser night vision devices have great advantages in night imaging clarity and monitoring distance. , are increasingly valued by users. [0003] Because laser night vision devices are generally installed in the field, the environmental conditions are extremely harsh, the window glass of the laser night vision device will be subject to dust and raindrops, which will affect the imaging quality of the night vision device. If there is dust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B17/12
CPCG03B17/12
Inventor 冯海伟马崇彩任忠祥孔祥安
Owner Shandong Huaguang Optoelectronics Co. Ltd.