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Primary structure of large-aperture long-focus collimator

A collimator and long focal length technology, applied in optics, optical components, and optical devices, can solve the problems of weak anti-interference ability and poor stability, achieve good stability, improve stability, and reduce deformation transmission.

Inactive Publication Date: 2010-09-01
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In order to solve the technical problems of poor stability and weak anti-interference ability of the main structure of the existing large-aperture long-focus collimator, the present invention provides a main structure of a large-aperture long-focal distance axial collimator with high optical performance

Method used

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  • Primary structure of large-aperture long-focus collimator
  • Primary structure of large-aperture long-focus collimator
  • Primary structure of large-aperture long-focus collimator

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Embodiment Construction

[0021] see figure 1 , figure 2 , a main structure of a collimator with large aperture and long focal length, including a vacuum chamber 5, a truss 1 disposed in the vacuum chamber 5, and a vibration isolation platform 4, the truss 1 is supported on the vibration isolation platform 4 through support legs 2, and the vacuum chamber 5 Supported on the vibration isolation platform 4 by the feet 8, there is no connection between the truss and the vacuum chamber.

[0022] The inner diameter of the through hole 13 is larger than the outer diameter of the supporting leg.

[0023] The truss is composed of five sections of small trusses connected in series, and each section is composed of twelve connecting rods 11 and two adjacent connecting rings 12 . The main reflector 30 is installed on the connecting ring at one end, the secondary reflector 31 is arranged on the connecting ring at the other end of the truss, and the folding axis reflector 32 is arranged on the connecting ring in t...

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Abstract

The invention relates to a primary structure of a large-aperture long-focus collimator, which comprises a vibration isolation platform (4), a vacuum chamber (5) and a truss (1) arranged in the vacuum chamber (5). The vacuum chamber (5) is fixed on the vibration isolation platform (4) through support legs (8). The primary structure is characterized in that: the bottom surface of the vacuum chamber (5) is provided with a plurality of through holes (13); supporting legs (2) having the same number as the through holes are arranged on the lower part of the truss (1); the supporting legs (2) pass through corresponding through holes (13) respectively and are supported on the vibration isolation platform; and flexible sealing elements (9) are arranged between the supporting legs (2) and the through holes (13). The primary structure solves the technical problem that a conventional primary structure of the large-aperture long-focus collimator has poor stability and weak anti-jamming capacity; and the primary structure of the large-aperture long-focus collimator has higher optical performance.

Description

technical field [0001] The invention relates to a main structure of a large-diameter long-focus collimator, in particular to a main structure of a large-diameter long-focus axial collimator with higher optical performance requirements. Background technique [0002] In the manufacture of optical cameras, it is usually necessary to use a collimator to test its optical performance. For a camera with a large aperture and long focal length, it is necessary that the aperture of the collimator used is not smaller than the aperture of the camera to be inspected, and the focal length of the collimator is longer than the focal length of the camera to be inspected. Therefore, a high-performance collimator with large aperture and long focal length is very important for developing a camera with large aperture and long focal length. The main structure that connects the optical elements and maintains their strict positional relationship has a great influence on the optical performance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G01B11/00
Inventor 李创许亮樊学武郝斌王炜任国瑞丁蛟腾林利明
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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