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High-precision combined calibration and butt-joint method and mechanism for infrared imaging system

A technology of infrared imaging system and docking mechanism, which is applied in the direction of optical components, optics, instruments, etc., can solve the problem that the optical axis of the optical imaging system and the center of the imaging focal plane cannot guarantee the perpendicularity precision of the optical axis of the optical imaging system and the target surface of the imaging focal plane The coincidence accuracy of the normal line coincides with the accuracy of the image plane of the optical imaging system and the imaging focal plane to achieve the effect of eliminating assembly errors

Active Publication Date: 2013-11-20
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The invention provides a method and mechanism for realizing the combined adjustment and docking of the infrared imaging system and the imaging focal plane, which mainly solves the problem that the perpendicularity accuracy between the optical axis of the optical imaging system and the imaging focal plane cannot be guaranteed in the existing image plane docking process. The coincidence accuracy of the optical axis of the optical imaging system and the center normal of the imaging focal plane target surface and the coincidence accuracy of the image surface of the optical imaging system and the imaging focal plane

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  • High-precision combined calibration and butt-joint method and mechanism for infrared imaging system
  • High-precision combined calibration and butt-joint method and mechanism for infrared imaging system
  • High-precision combined calibration and butt-joint method and mechanism for infrared imaging system

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[0027] The present invention is described in detail below in conjunction with accompanying drawing:

[0028] The invention system consists of borrowing a high-precision two-axis horizontal or two-axis vertical lathe as a platform, such as figure 1 As shown, each of its two rotation axes is fixed with an optical centering adjustment device that can realize four-degree-of-freedom adjustment, and the optical lens is fixed on the optical centering adjustment device close to the surface source black body, infrared collimator and internal focusing centering device , the object plane of the optical lens faces the collimator and the inner focusing and centering instrument; the focal plane component is fixed on another optical centering adjustment device, and its focal plane faces the direction of the collimator and the inner focusing and centering instrument.

[0029] The method of the invention specifically comprises the following steps:

[0030] 1. Adjust the parallelism between th...

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Abstract

The invention provides a high-precision combined calibration and butt-joint method and a high-precision combined calibration and butt-joint mechanism for an infrared imaging system, which are mainly used for solving the problem that the verticality precision of the optical axis of an optical imaging system and an imaging focus plane, the verticality accuracy of the optical axis of the optical imaging system and the central normal of the target surface of an imaging focal plane and the verticality accuracy of the image plane of the optical imaging system and an imaging focal plane cannot be ensured in the conventional image plane but-joint process. According to the method and the mechanism, a high-precision dual-shaft lathe is used for clamping at one time, and meanwhile turning machining of the butt-joint reference surface of a focusing plane assembly and the flange mounting end face of an optical lens is realized after a given adjusting target is achieved and the adjusting precision is reached, so that the parallelism of two planes is ensured, and assembling errors caused by earlier assembling loops of the focal plane assembly and optical lens are fully eliminated.

Description

technical field [0001] The invention relates to a high-precision combined adjustment and docking method and mechanism of an infrared imaging system, which are used to realize the high-precision combined adjustment and docking of the infrared imaging system and a focal plane. Background technique [0002] Infrared imaging equipment consisting of an infrared optical imaging system and an infrared focal plane is an important payload for aircraft in the fields of aviation, aerospace, and near space. It provides video images for various tasks. The verticality of the plane, the degree of coincidence between the optical axis and the center normal of the imaging focal plane target surface, and the degree of coincidence between the image plane of the optical system and the imaging focal plane are very high. How to ensure the above-mentioned index requirements in the assembly process of infrared imaging equipment becomes a decision for infrared An important part of imaging equipment i...

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Application Information

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IPC IPC(8): G02B27/62
Inventor 武力范哲源杨洪涛张志张建武登山张兆会陈卫宁费嘉祺董森
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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