Portable long-focal-length large-aperture device for measuring deviation of optical axis of product, and measurement method

A large-caliber, portable technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of not having automatic calculation of optical axis deviation, etc., to achieve the effect of reducing assembly costs, simple test steps, and high measurement accuracy

Active Publication Date: 2019-02-26
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing measurement method is that the measurement cannot be performed after exceeding the caliber of the card-type

Method used

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  • Portable long-focal-length large-aperture device for measuring deviation of optical axis of product, and measurement method

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Experimental program
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Embodiment Construction

[0022] The present invention will now be further described in conjunction with the embodiments and accompanying drawings:

[0023] See figure 1 : Including cassette collimator 1, rhombus prism group 2, optical axis deviation measurement system 3, platform 5 and adjustment bracket 6; cassette collimator 1 is placed on platform 5 through adjustment bracket 6, rhombus prism group 2 It is located on the front face of the cassette collimator 1, and the position is adjusted so that it can receive 360° beams of all sensors in the product under test located on the opposite side of the cassette collimator 1; the optical axis deviation measurement system is placed in the cassette collimator. 1 and the product under test, the image acquisition CCD camera of the optical axis deviation measurement system is aimed at the combined target in the cassette collimator 1.

[0024] The combined target includes various shapes of visible light, laser-to-visible light, and infrared-to-visible light ...

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Abstract

The invention relates to a portable long-focal-length large-aperture device for measuring the deviation of an optical axis of a product, and a measurement method. A rhombic prism assembly is used to expand the aperture of a card-type collimator, and an optical axis deviation measurement system is used for automatically measuring the deviation of the optical axis of a large-aperture multi-sensor product. The method comprises the following steps that a combined target on the focal plane of the card-type collimator can receive the laser or infrared light emitted by the product and form a visiblespot on the focal plane of the card-type collimator; the rhombic prism assembly can effectively export a beam outside the effective aperture of the card-type collimator into a device; the optical axisdeviation measurement system is aligned with the aperture of the card-type collimator but is separated from the card-type collimator; a CCD is used to collect and record the product spot position ofany convergence on the focal plane of the card-type collimator; the test software of the optical axis deviation measurement system can quickly calculate the deviation between the two pixel centers ofthe product spot at different positions of the CCD, and convert and display the angular deviation of the two optical axes.

Description

technical field [0001] The invention belongs to the optical adjustment technology, and relates to a portable telephoto and large-diameter device for measuring the optical axis deviation of a product and a measurement method. Automatically measure the deviation of the optical axis of large-diameter multi-sensor products. Background technique [0002] The optical axis consistency of large-diameter multi-sensor products is one of the most important technical indicators of airborne optoelectronic products, which directly affects the accuracy of strike targets. The existing measurement methods are unable to measure after the aperture of the cassette collimator is exceeded, and second, they do not have the function of automatically calculating the deviation of the optical axis. [0003] The invention provides a cassette collimator 1 and a method for automatically measuring the optical axis deviation of a product, which are commonly used in product process assembly and field maint...

Claims

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Application Information

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IPC IPC(8): G01B11/27
CPCG01B11/272
Inventor 周景欢孙佳明盛军孙庆伟吴晓鸣李继朋
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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