Cube prism optical calibration device for aiming and monitoring optical axis of telescope

Abstract

The invention discloses a cube prism optical calibration device for aiming and monitoring an optical axis of a telescope. The cube prism optical calibration device turns two laser beams into an angleof 180 degrees using a cubic prism method, which realizes the initial adjustment of the optical axis of a telescope optical system parallel to a reference standard plane mirror normal. The parallel relationship between two parallel plates is adopted to solve the high-precision precision adjustment of the optical axis of the telescope parallel to the reference plane mirror normal. According to thecube prism optical calibration device for aiming and monitoring an optical axis of a telescope, the problem of image quality change caused by the drift of the optical axis during the telescope adjustment process is solved, and real-time high-precision monitoring of the state of the tested system is realized. The optical path structure is simple, and the combination of coarse adjustment and fine adjustment greatly improves the efficiency of optical calibration. The optical calibration device of the invention is not only suitable for registration and real-time monitoring of the optical axis of the telescope optical system and the standard plane mirror normal, but also suitable for calibrating the angle between two opposite mirror surfaces, the angle between two optical plates, and other optical calibration fields.

Description

technical field [0001] The invention relates to the alignment of the optical axis of the telescope optical system and the registration of the transceiver coaxial in the performance test of the whole system, and is especially suitable for the registration and real-time monitoring of the optical axis of the telescope optical system and the normal line of the standard plane mirror during the assembly and adjustment of the reflective telescope. It is also suitable for calibrating the angle between two opposing mirrors, the angle between two optical flat plates and other optical calibration fields. Background technique [0002] The optical system loads of space reflective space cameras such as laser altimeter and laser radar have higher and higher requirements for optical axis pointing, which will inevitably lead to higher and higher requirements for optical axis registration in the optical calibration process of the optical system. During the self-collimation optical calibration...

AI Technical Summary

Problems solved by technology

Establishing a benchmark in this way will introduce various errors, such as the fixed error of the theodolite, the zero position error of adjusting the level of theodolite, the rotation error introduced by rotating theodolite, etc. The process is cumbersome and the repeatability is not high. It is difficult to realize the real-time monitoring of the optical axis during the optical calibration process.

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