Quantitative detection device for multi-optical axis parallelism of photoelectric equipment

Abstract

The invention discloses a photoelectric equipment multi-optical-axis parallelism quantitative detection device. The device comprises an off-axis folded aspheric optical system, a CCD image sensor, a two-dimensional translation bench, a double-pentaprism expanding assembly and a control system. The off-axis folded aspheric optical system forms a collimation parallel light tube. The two-dimensional translation bench is installed behind a housing. A cross scale surface of the two-dimensional translation bench is superposed with a focal plane of the parallel light tube. A transition prism group is arranged below an aspheric secondary mirror to realize light parallel inversion. The lens of the CCD image sensor is aligned to the transition prism group. A support group is installed on the housing. Two ends of a beam expanding guide rod of the support group are respectively provided with a pentaprism, and the relative distance between the two pentaprisms is adjustable. The device is capable of realizing quantitative and precise parallelism measurement of every two laser / infrared / white light optical axes of multi-band photoelectric equipment, is advantageous by being wide in spectrum range, high in measurement precision, miniature and portable, and is applicable to optical axis parallelism testing among multi-band photoelectric equipment.

Description

technical field [0001] The invention relates to the technical field of optoelectronic equipment detection devices, and more particularly relates to a quantitative detection device for multi-optical axis parallelism of optoelectronic equipment, which is suitable for online precise quantitative testing of optical axis parallelism between multi-band optoelectronic equipment. Background technique [0002] Optoelectronic equipment, including infrared equipment, television equipment, and laser equipment, has been widely used in various industries. Optoelectronic equipment is developing from single to integrated, integrating infrared / laser / television on the same platform, which can realize the detection and tracking of dynamic targets. The optical axis parallelism among multiple optical axes of optoelectronic equipment is a key technical index to measure the system performance of multispectral optoelectronic equipment, which directly affects the capture and tracking of dynamic targ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a quantitative detection device for the multi-optical axis parallelism of photoelectric equipment, which solves the problems of difficult determination of measurement reference, measurement aperture that cannot cover multiple optical axes, and difficult extraction of measurement errors, and realizes multi-band photoelectric equipment laser / On-site dynamic quantitative and accurate measurement of the parallelism of infrared / white light pairs of optical axes, with the characteristics of wide spectral range, high measurement accuracy, small and portable, etc.

Images