Large-caliber collimator for airborne photoelectric aiming system detection and detection method

A technology of photoelectric aiming and collimator, which is applied in the direction of measuring device, optical axis determination, and optical device, which can solve the problems of large subjective interpretation error, complex operation of detection equipment and methods, and low degree of automation

Inactive Publication Date: 2020-03-27
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] In order to avoid the deficiencies of the prior art, the present invention proposes a large-diameter collimator and detection method for airborne photoelectric

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  • Large-caliber collimator for airborne photoelectric aiming system detection and detection method
  • Large-caliber collimator for airborne photoelectric aiming system detection and detection method
  • Large-caliber collimator for airborne photoelectric aiming system detection and detection method

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Embodiment Construction

[0031] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0032] The large-aperture collimator includes laser entrance diaphragm, TV / IR exit diaphragm, parabolic primary mirror, parabolic secondary mirror, infrared laser beam splitter, thermal target material, cross target plate, thermal light source and structural box. The parabolic primary mirror and the secondary mirror constitute an off-axis large-aperture long-focus collimator optical system.

[0033] The laser entrance aperture 1 is a circular light-shielding plate with a diameter of 70 mm, and an equilateral triangle with a side length of 30 mm or an equilateral hexagonal light transmission hole with a side length of 15 mm is engraved in the middle. When the laser output beam passes through an equilateral triangle or an equilateral hexagon, a diffraction spot will be generated on the hot target material. The shape of the diffraction spot is a pattern in which th...

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Abstract

The invention relates to a large-caliber collimator of an airborne photoelectric aiming system and a detection method. The large-caliber collimator is used for accurately and rapidly detecting the optical axis parallelism of multi-sensor airborne photoelectric detection equipment carrying infrared, television, laser range finders and the like, an off-axis large-aperture long-focal-length collimator optical system is formed by a paraboloid primary mirror and a paraboloid secondary mirror, and a thermal target material and a cross target plate are arranged on the focal plane of the collimator optical system in a conjugate mode. The laser incident diaphragm is a specially-made diaphragm, so that the shape of a light spot can be modulated into a shape which is more beneficial to high-precisioncentroid detection. The control computer acquires an image of the target surface of the detection device imaged by the detected product, and automatically detects the optical axis deviation of each sensor of the detected product by using an optical axis deviation detection algorithm. The large-caliber collimator is convenient to use, high in detection precision, good in working stability, high inautomation degree and suitable for product adjustment, maintenance and external field guarantee.

Description

technical field [0001] The invention belongs to the field of airborne photoelectric detection and countermeasures, and relates to a large-diameter collimator and a detection method for an airborne photoelectric sighting system, and to an automatic detection device and method for multi-optical axis consistency of the airborne photoelectric sighting system. Background technique [0002] Nowadays, most airborne photoelectric detection systems include infrared, laser, visible light and other sensors. Infrared and TV sensors image the target for searching and tracking the target, and the laser sensor is used for active ranging of the target. In order to ensure that the targets tracked by infrared and TV are consistent with those of laser ranging, the airborne photoelectric detection system has certain parallelism requirements for multiple optical axes of infrared, TV and laser. The parallelism indication is an important performance index of the airborne optoelectronic detection ...

Claims

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Application Information

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IPC IPC(8): G01M11/02G01B11/27
CPCG01B11/272G01M11/0221
Inventor 刘可辉
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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