Device for correcting parallelism degree of laser emission optical axis and capturing and tracking visual axis

Abstract

The invention discloses a device for correcting the parallelism degree of a laser emission optical axis and a capturing and tracking visual axis, belongs to a detection device in the technical field of photoelectric detection, and provides the device for correcting the parallelism degree of the laser emission optical axis and the capturing and tracking visual axis. The device comprises a laser device, a two-dimensional swing mirror, a beam splitter, a laser energy collector, a cube-corner prism, a charge coupled device (CCD) camera, a two-dimensional swing mirror controller and a data processing computer, wherein the beam splitter, the two-dimensional swing mirror and the CCD camera are arranged on an optical axis of the cube-corner prism from left to right in sequence; the beam splitter and the optical axis form a 45-degree angle; the two-dimensional swing mirror and the optical axis form a 45-degree angle; the laser device and a normal of the two-dimensional swing mirror form a 45-degree angle; the laser energy collector is arranged in the direction of reflecting laser of the beam splitter; the two-dimensional swing mirror controller is connected with the two-dimensional swing mirror; and the CCD camera and the two-dimensional swing mirror controller are connected with the data processing computer. The device for correcting the parallelism degree of the laser emission optical axis and the capturing and tracking visual axis is simple in structure, reliable and practical.

Description

Technical field: [0001] The invention belongs to a detection device for the parallelism of the laser emission optical axis and the capture and tracking visual axis, which is involved in the field of photoelectric detection technology. Background technique: [0002] Corner cube prism (also called retroreflector) is an optical device, which is an internal total reflection prism manufactured according to the principle of critical angle. It is not affected by the incident angle and can reflect incident light by 180°. That is, for any incident light entering the clear aperture, it will be efficiently reflected back in the original direction. The working principle of corner cube prism is as follows figure 1 Shown: it is composed of incident light I, outgoing light II, first reflecting surface III, second reflecting surface IV, and third reflecting surface V. Ideally, after the incident light rays are reflected successively by three mutually perpendicular reflecting surfaces, the...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this device is that it consumes a lot of personnel and the work efficiency is low. At the same time, this device uses a steel ruler or a vernier caliper to measure the position deviation between the light spot on the target plate and the infrared light source, and the measurement accuracy is limited. Axis Parallelism Accuracy

This largely limits the alignment accuracy of the parallelism of the laser emitting optical axis and the capturing and tracking viewing axis

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