Multispectral stripe tube three-dimensional lidar imaging apparatus

Abstract

The invention, which belongs to the photoelectric imaging technology field, relates to a multispectral stripe tube three-dimensional lidar imaging apparatus. The apparatus comprises: a multi-wavelength laser, a beam expanding prism, a reception telescope, a diffraction grating spectroscope, a convex lens, optical filters, a stripe tube, a coupling light cone, and a CCD camera. A mixing multi-wavelength laser beam that is emitted by the multi-wavelength laser passes through the beam expanding prism and then is shot at an object and is reflected; the reflected laser beam is received by the reception telescope and is gathered to the diffraction grating spectroscope; and then the gathered laser beam passes through the convex lens and is focused on the optical filters; the focused laser beam bombards a photoelectric cathode of the stripe tube to generate a plurality of electron beams though a slit and the plurality of electron beams bombard a fluorescent screen in the stripe tube; and then a multispectral strip image is coupled through the coupling light cone and is imaged on the CCD camera. According to the invention, a multi-spectral detection technology is integrated into a stripe tube lidar imaging apparatus, so that accuracy of object imaging and richness of information are improved; and a specific wavelength can detect a weak signal; therefore, an application arrange of the stripe tube lidar imaging detection apparatus is expanded.

Description

technical field [0001] The invention relates to a three-dimensional imaging device of a multi-spectral stripe tube laser radar, which belongs to the technical field of photoelectric imaging. Background technique [0002] The general passive target detection system can only obtain the grayscale information of the target, which is difficult to meet the detection of camouflaged targets or the identification of target distance information in future warfare. Lidar 3D imaging technology is a research hotspot in the world in recent years. It is the product of the combination of laser technology and radar technology. It has broad development prospects in military, aerospace and other fields. It not only answers the question of whether the target is detected, the distance, but also solves the problem of what the target is and how it is. The traditional scanning laser imaging radar system not only loses portability because of the extra mechanical scanning mechanism, but also needs to ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the single-wavelength detection system is weak for a specific environment or the target imaging signal is difficult to detect by the sensor, and proposes a multi-spectral stripe tube laser radar three-dimensional imaging device

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