Active laser night vision instrument

Abstract

The invention belongs to the technical field of night vision monitoring equipment and specifically disclosed an active laser night vision instrument. The device comprises a picture pick-up system, a laser projection system and a driving device, wherein a photoelectric sensor for detecting illumination intensity is arranged on the laser projection system, a laser light valve for modulating laser output power and a working indication lamp for indicating the working state of the laser projection system are arranged on the laser projection system, and the laser light valve can regulate the laser output power of the laser projection system from 0 to the maximum output power range of the adjustable laser protection system, wherein the laser projection system does not work during the day, the picture pick-up system is used for color imaging during the day, and the picture pick-up system can be started for converting a picture pick-up machine to a black and white image and further receive an image which is formed by projecting to a monitoring area through the laser projection system for reflection when the illumination intensity is low at night. From production to system maintenance, a laser device can be conveniently closed or the laser light-emitting power can be reduced firstly so as to facilitate safety mounting and maintenance.

Description

technical field [0001] The invention belongs to the technical field of night vision monitoring equipment, and in particular relates to an active laser night vision instrument. Background technique [0002] In terms of night vision technology, only infrared thermal imaging, low-light lens and infrared auxiliary lighting are applied. Due to reasons such as unclear images and high prices in the application of infrared thermal imaging and low-light lens, they are only used in special industries and cannot be widely used. Scale application. [0003] Infrared thermal imaging technology is a passive infrared night vision technology. Its principle is based on the fact that all objects in nature with a temperature higher than absolute zero (-273°C) radiate infrared rays all the time. At the same time, this infrared radiation contains The characteristic information of the object provides an objective basis for using infrared technology to distinguish the temperature level and heat di...

AI Technical Summary

Problems solved by technology

[0004] At present, in the field of TV monitoring, most cameras rely on LED infrared lighting or white light for imaging at night. However, LEDs are originally green lighting products due to chip structure, packaging technology, and heat dissipation. However, in later applications, various reasons have caused Disadvantages such as short life, low photoelectric conversion rate, and difficult angle modulation

[0005] LED lighting is generally used in short-distance night vision applications. Laser lighting can cover short-distance to long-distance night vision applications and has better beam angle modulation. risks of

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