Aerial camera Cassegrain primary and secondary mirror supporting structure

An aerial camera and support structure technology, applied in the field of optical engineering, can solve the problems of complex processing and adjustment, high cost, etc., and achieve the effect of improving surface shape accuracy, simple assembly process, and short cycle

Active Publication Date: 2015-09-09
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a support structure for the Cassegrain primary and secondary mir

Method used

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  • Aerial camera Cassegrain primary and secondary mirror supporting structure
  • Aerial camera Cassegrain primary and secondary mirror supporting structure
  • Aerial camera Cassegrain primary and secondary mirror supporting structure

Examples

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Example Embodiment

[0021] The embodiments of the present invention will be further described below in conjunction with the drawings.

[0022] See attached figure 1 And figure 2 , The Cassegrain primary and secondary mirror support structure of the aerial camera of the present invention includes a primary lens holder 1, a primary lens spacer 2, a lens barrel 4, a connecting frame 5, a secondary lens holder 7, an angle spacer 8 and an axial spacer 9; The main lens holder 1 is fixedly connected to one end of the lens barrel 4, a main lens spacer 2 is provided between the main lens holder 1 and the lens barrel 4; the secondary lens holder 7 is fixed to the connecting frame 5 Connected, an axial gasket 9 and an angle gasket 8 are provided between the secondary lens holder 7 and the connecting frame 5. The connecting frame 5 is fixedly connected to the other end of the lens barrel 4, and the primary mirror 3 and the secondary mirror 6 are respectively fixed on the primary lens holder 1 and the secondary...

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Abstract

The invention provides an aerial camera Cassegrain primary and secondary mirror supporting structure, belongs to the technical field of optical engineering, and aims at solving problems in the prior art that the supporting structure is complex, the processing and adjusting cycle is long and cost is high. A primary mirror base is fixedly connected with one end of a mirror cone. A primary mirror gasket is arranged between the primary mirror base and the mirror cone. A secondary mirror base is fixedly connected with a connecting frame. An axial gasket and an angular gasket are arranged between the secondary mirror base and the connecting frame. The connecting frame is fixedly connected with the other end of the mirror cone. A primary mirror and a secondary mirror are respectively fixed on the primary mirror base and the secondary mirror base. Flexible hinges are directly processed on the primary mirror base and flexible slots are processed on the secondary mirror base so that stress transmitted to the surface of a reflecting mirror in change of external environment temperature and the assembling process can be reduced and optical surface figure accuracy can be enhanced; and axial distance and relative angle of the primary mirror and the secondary mirror are adjustable so that the primary mirror and the secondary mirror are ensured to possess correct spatial position, and the assembling process is simple and short in the cycle.

Description

technical field [0001] The invention belongs to the technical field of optical engineering, and in particular relates to a support structure for a Cassegrain primary and secondary mirror of an aerial camera. Background technique [0002] The Cassegrain optical system has been widely used in photoelectric reconnaissance equipment such as aerial cameras due to its advantages of no chromatic aberration, compact structure, and wide-spectrum applicability. This type of optical system consists of two mirrors, a parabolic primary mirror and a hyperbolic secondary mirror. The primary mirror and secondary mirror form a part with their own mechanical support structure respectively. The primary mirror and secondary mirror are fixedly connected to the support structure after optical processing and coating, and then the primary mirror assembly and secondary mirror assembly are installed on the main structure of the camera. , and ensure that the primary mirror and secondary mirror meet t...

Claims

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Application Information

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IPC IPC(8): G02B7/182
CPCG02B7/182
Inventor 刘福贺程志峰张保
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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