Hand-held round-the-clock laser imaging distance measurer

Abstract

The invention discloses a hand-held round-the-clock laser imaging distance measurer, which consists of a laser emission subsystem, a laser receiving subsystem and an information processing and display subsystem, wherein position connection relationships among the laser emission subsystem, the laser receiving subsystem and the information processing and display subsystem are that: the laser emission subsystem and the laser receiving subsystem are positioned at the front end of a system, while the information processing and display subsystem is positioned at the rear end of the system; the laser emission subsystem consists of an illumination laser light source, a distance measurement laser light source, a beam splitter and an emission lens; the laser receiving subsystem consists of a receiving lens, the beam splitter, a charge coupled device (CCD) and an avalanche photo diode (APD) receiver; and the information processing and display subsystem consists of a digital signal processor (DSP)-based information processing unit and a liquid crystal display (LCD). The hand-held round-the-clock laser imaging distance measurer takes laser as the illumination light source, is not limited by an external environment, can perform round-the-clock distance measurement on a target, integrates the two sets of subsystems for laser imaging and laser distance measurement to realize common-aperture emission and reception, is scientific in conception and novel in structure and has vast application prospect in the technical field of laser imaging and distance measurement.

Description

(1) Technical field [0001] The invention relates to a laser imaging system and a laser ranging system integrating light, machine, electricity and calculation, in particular to a hand-held day and night laser imaging rangefinder, which integrates the functions of laser imaging and laser ranging. The invention belongs to the technical field of laser imaging and laser ranging. (2) Background technology [0002] Laser rangefinders are widely used due to their advantages of non-contact measurement, long measurement distance, quick and easy distance measurement, and high distance measurement accuracy. Among them, the laser range finder based on the pulse time-of-flight method is widely used because of its simple structure and easy implementation. It sends laser pulses through the pulse laser to irradiate the surface of the target to be measured, the surface of the target to be measured will reflect the laser light irradiated on it, and the laser signal reflected by the target is ...

AI Technical Summary

Problems solved by technology

This device overcomes the shortcomings of the previous laser rangefinder that the human eye cannot observe the target due to low ambient illumination at night and cannot measure the distance. By integrating laser imaging and laser ranging, the laser imaging subsystem and the laser ranging subsystem share the emission optics. system, and they also share the receiving optical system

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