Laser targeting device based on four quadrant optical-electric detector

Abstract

The invention relates to a laser shooting device based on a four-quadrant photodetector, comprising a laser emitting system, a laser receiving system and a signal processing part. The laser receiving system consists of a substrate, a semi-permeable semi-reflective mirror, an imaging screen, a lens, a filter and the four-quadrant photodetector; after a laser beam passes the semi-permeable semi-reflective mirror, the light is divided into two paths; one path of light is transmitted onto the substrate, and the other path of light is reflected by the semi-permeable semi-reflective mirror and thenforms an image on a photosensitive surface of the four-quadrant photodetector after passing the imaging screen, the lens and the filter orderly; signals of the four-quadrant photodetector are amplified via a signal processing circuit, shaped and accessed to an A / D conversion circuit; finally a computer is accessed for carrying out signal processing, the simulative display of laser impact points and the score display of shooters.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to a laser target shooting device based on a four-quadrant photodetector for simulated target shooting training. Background technique [0002] At present, laser target shooting devices are widely used in entertainment and military training. Entertainment laser target shooting devices are mainly produced by Nanjing Leisheng and Shenyang Jinshan. In terms of military shooting training, many countries research laser target shooting devices and use laser bullets instead of traditional bullets to save training expenses. There are also individual units in our country that are engaged in the research of laser target shooting devices and produce corresponding products, but due to these The product cannot fully meet the requirements of military training, so the scope of application is extremely limited. The common laser target shooter has an obvious disadvantage, that is, it uses a large num...

AI Technical Summary

Problems solved by technology

In terms of military shooting training, many countries research laser target shooting devices and use laser bullets instead of traditional bullets to save training expenses. There are also individual units in our country that are engaged in the research of laser target shooting devices and produce corresponding products, but due to these The product cannot fully meet the requirements of military training, so the scope of application is extremely limited

The common laser target has an obvious disadvantage, that is, it uses a large number of photodiodes arranged on the target surface as a detector array, which is not only expensive, but also complicated for subsequent signal processing.

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