Detection device and detection method of optical system

Abstract

Embodiments of the present invention disclose a detection device and a detection method for an optical system. The detection device adds a first optical path adjustment element between an optical signal generating element and an optical system to be measured, so as to use the first optical path adjustment element to change The propagation direction of the first outgoing light forms the second outgoing light, and the propagation direction of the second outgoing light and the first outgoing light is different, so that when using the detection device for performance testing of the optical system to be tested, it is possible to Using the first optical path adjustment element to change the propagation direction of the first outgoing light, test the performance of the optical system to be tested in different fields of view, and realize the detection of the performance of the optical system to be tested in multiple fields of view, thereby On the one hand, it can improve the installation and adjustment success rate of the optical system to be tested, and on the other hand, it can also improve the final assembly performance of the optical system to be tested. In addition, it can also meet the different requirements of the optical system to be tested on the beam aperture.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a detection device and a detection method of an optical system. Background technique [0002] With the development of optical technology, optical systems are more and more widely used in all aspects of life, which brings great convenience for us to better observe the world. [0003] In order to improve the performance of the optical system, all kinds of existing optical systems have to go through performance tests in the assembly and manufacturing process, and they can only be put into production and use when they meet the requirements. This type of test is especially important in precision optical systems such as space cameras and space telescopes. important. [0004] Taking the typical two-mirror system Ritchey-Chretien telescope as an example, the performance test experiment of the existing optical system during the assembly and manufacturing process mainly focuses on the on...

AI Technical Summary

Problems solved by technology

However, in actual use, for some optical systems, when the on-axis coma aberration is adjusted to zero, the secondary mirror is rotated by a certain angle around the coma aberration free point, which artificially produces a certain adjustment error, and the on-axis coma aberration remains the same. zero

It can be seen that the accuracy of the method of using a single field of view (that is, on-axis field of view) to check whether the two-mirror system is successfully installed and adjusted needs to be improved.

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