Visible light imaging and laser ranging optical axis-sharing lens and imaging ranging method thereof

Abstract

The invention relates to a visible light imaging and laser ranging optical axis-sharing lens. The optical system of the lens comprises a laser ranging path and a visible light imaging path. The laser ranging path is sequentially provided with a zoom group G with positive focal power, a reflector A, a front fixing group F with positive focal power, and a spectroscope along a laser pulse transmitting direction. The visible light imaging path is sequentially provided with a front fixing lens group A with positive focal power, a zoom lens group B with negative focal power, a compensation lens group C with positive focal power, an adjustable diaphragm D, rear fixing lens groups E and F with positive focal power, and reflectors B and C sequentially located behind the rear fixing lens groups E and F along a light incidence direction. Consistency between a monitored target and an actual ranging target can be improved, a divergence angle size for emitting a laser beam is adjustable, the ranging range is large, information of the monitored target can be collected more thoroughly and accurately, a reliable guarantee is provided for applications such as information processing, accurate positioning and precise striking, the overall structure is compact, and the resolution is high.

Description

technical field [0001] The invention relates to a common optical axis lens for visible light imaging and laser ranging and an imaging ranging method thereof, belonging to the field of photoelectric technology. Background technique [0002] Ordinary camera lenses can only obtain the image information of the object and obtain perceptual knowledge of the target object, but cannot obtain digital information such as the distance and size of the target object. When it is necessary to accurately locate, accurately strike, and accurately measure the target object, it is often helpless. [0003] Ordinary ranging lenses generally use an ordinary fixed-focus telephoto system to realize the compression of the laser beam emission angle, so the system magnification is constant, the divergence angle of the outgoing laser beam is constant, and the laser retroreflectivity decreases with the increase of distance , making its application very limited. [0004] When the camera lens is combine...

AI Technical Summary

Problems solved by technology

[0004] When the camera lens is combined with the distance measuring device, the size of the object and other information can be calculated through subsequent information processing, but there is also the disadvantage that the camera monitoring target is inconsistent with the actual distance measuring target, resulting in discrepancies between the calculated results and the actual ones. Can not meet the application requirements of high precision

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