System capable of realizing optical lens and focal plane assembly high-precision centering, and method capable of realizing optical lens and focal plane assembly high-precision centering

Abstract

The present invention relates to a system capable of realizing optical lens and focal plane assembly high-precision centering, and a method capable of realizing the optical lens and focal plane assembly high-precision centering. The system comprises an auto-collimation centering instrument, a two dimensional adjusting bench and a rotating shaft, a to-be-debugged focal plane assembly is arranged on a two-dimensional turntable adjusting bench, and a to-be-debugged optical lens is arranged on the to-be-debugged focal plane assembly. The two dimensional adjusting bench can realize the translation and pitching adjustment, a translation precision is 0.01mm, and a pitching adjustment precision is 5''. The rotating shaft is connected with the two dimensional adjusting bench and drives the to-be-debugged focal plane assembly and the to-be-debugged optical lens to rotate axially around the rotating shaft via the two dimensional adjusting bench, and the to-be-debugged focal plane assembly and the to-be-debugged optical lens are arranged in an emergent light path of the auto-collimation centering instrument orderly. The present invention provides the system and the method which are simple in structure and high in centering precision, are easy to operate, and can realize the optical lens and focal plane assembly high-precision centering.

Description

technical field [0001] The invention belongs to the field of optical adjustment and relates to a system and method capable of realizing high-precision centering of an optical lens and a focal plane assembly. Background technique [0002] The optical lens is used to image the target with a certain magnification, so that the specific object plane target is imaged as an image plane target that is convenient for observation and detection, but the use of the optical lens often needs to rely on the focal plane component for imaging. The focal plane component can record the image plane information, and extract the image plane information through a certain image processing software, so as to obtain useful image information. [0003] The focal plane assembly has a certain size, which is mainly determined by the focal length of the optical lens and the field of view of the optical lens. The pixel center of the focal plane assembly must coincide with the optical axis center of the opt...

AI Technical Summary

Problems solved by technology

But for an infinitely distant target, if the infinitely distant parallel light is an off-axis beam relative to the optical lens, then the center of the image point formed by the cross reticle is off-axis and not on the optical axis, so that the center of the optical lens and the focal plane assembly They do not overlap, but due to the small field of view of the collimator and theodolite, it can meet the requirements for cameras with low centering accuracy requirements, but the above methods cannot meet the requirements for aerospace lenses with extremely high centering accuracy requirements

Images