Photoelectric equipment multi-optical-axis parallelism quantitative detection device

A technology for quantitative detection and optoelectronic equipment, which is applied to measurement devices, the use of optical devices, and the testing of optical performance. , to meet the effect of accurate detection of wide-spacing optical axis parallelism

CN105571526AActive Publication Date: 2016-05-11ARMY ENG UNIV OF PLA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-05-11

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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.
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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...

Examples

Embodiment Construction

[0021]A photoelectric device multi-optical axis parallelism quantitative detection equipment, including off-axis folding aspheric optical system, CCD image sensor 5, two-dimensional translation stage 6, pentaprism assembly 8, bracket group 7 and control system, the off-axis The folded double-mirror optical system includes a housing 1, an aspheric primary mirror 2, an aspheric secondary mirror 3, and a turning prism group 4. The aspheric primary mirror 2 and the aspheric secondary mirror 3 in the housing 1 form a collimated light pipe. Both the aspheric primary mirror 1 and the aspheric secondary mirror 2 adopt hyperboloid reflectors to form an off-axis Cassegrain type collimator, the curvature of the aspheric primary mirror 2 is -400.17mm, and the off-axis amount is 102.5, The curvature of the aspheric secondary mirror 3 is -129.77 mm, and the off-axis distance is 24 mm. The distance between the aspheric primary mirror 2 and the aspheric secondary mirror 3 is 153 mm. The cross...