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Main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device

An optical imaging, main three-mirror technology, used in optics, optical components, instruments, etc., can solve the problems of heavy weight and large volume, and achieve the effect of correcting aberrations, reducing system volume, and reducing volume

Active Publication Date: 2018-09-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problems of large volume and heavy weight of the existing space infrared reflective optical device, the present invention proposes a coaxial three-mirror infrared optical imaging device integrating three main mirrors

Method used

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  • Main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device
  • Main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device
  • Main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device

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specific Embodiment approach 1

[0033] Embodiment 1, the material of the reflective secondary mirror 2 and the integrated reflective primary mirror 1 and reflective third mirror 14 is silicon carbide, and the thickness of the base is 25mm. They are all fixed with a mandrel installation method and have certain flexibility. The main mirror mandrel 11 It is connected with the primary mirror base 6, and the secondary mirror mandrel 7 is connected with the secondary mirror base 4, between the integrated reflective primary mirror 1 and the reflective third mirror 14 and the mandrel 11, and between the reflective secondary mirror 2 and the secondary mirror mandrel 7 All fixed with silicone rubber. Both the primary mirror truss support ring 10 and the secondary mirror support ring 8 are fastened to the mirror base 6 by screws, and the reflective secondary mirror 2 is connected with the integrated reflective primary mirror 1 and the reflective third mirror 14 by using the truss 9 , and the truss 9 adopts a cylinder D...

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Abstract

The invention discloses a main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device, and belongs to the technical field of infrared optical imaging. The device solves technical problems that a conventional spatial infrared reflecting-type optical device is large in size and weight. A reflecting main mirror and three reflectors of the device are of an integrated structure, and are installed in a main mirror seat through a main mirror core shaft. A secondary mirror seat is fixedly connected with the main mirror seat through a truss assembly, and a reflectingsecondary mirror is fixed on the secondary mirror seat through a secondary mirror core shaft. A secondary mirror shading cover is embedded in the truss assembly. A lens cone is connected with the main mirror seat, and a detector support is connected to an outer side of the main mirror seat. The image plane of a detector is installed on the detector support. The device employs a main-mirror and three-mirror integrated optical integrated imaging system design, and forms a super-compact coaxial three-reflector infrared optical imaging device. The device reduces the size, weight and cost of a spatial infrared optical system under the same focal length, increases the optimization variables of the system, and can achieve the better correction of aberration.

Description

technical field [0001] The invention belongs to the technical field of infrared optical imaging, and in particular relates to a coaxial three-mirror infrared optical imaging device integrating three main mirrors. Background technique [0002] The development direction of space optical remote sensing technology is high resolution, large width, light weight and small volume, and the reflective system can fold the optical path to achieve a large focal length and no chromatic aberration in a small volume. Mirrors do not require special materials and are widely used in space infrared optical systems. The reflective system includes off-axis reflective system and coaxial reflective system. The off-axis reflective system can achieve a large field of view without obstruction in the center and has high imaging quality, but compared with the coaxial reflective system, it is difficult to install and adjust, and the cost is high. The large size of the support structure is not conducive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/06
CPCG02B17/0626
Inventor 刘春雨刘帅王天聪解鹏徐明林
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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