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Large-aperture main lens lifting mechanism

A lifting mechanism and large-diameter technology, applied in the field of optical instruments, can solve the problem of unusable main mirror lifting mechanism, and achieve the effects of avoiding blindness, high radial positioning accuracy, and ensuring safety and reliability.

Active Publication Date: 2019-04-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If there is a special shape on the edge of the primary mirror, this conventional primary mirror lifting mechanism cannot be used

Method used

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  • Large-aperture main lens lifting mechanism
  • Large-aperture main lens lifting mechanism
  • Large-aperture main lens lifting mechanism

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see figure 1 and figure 2 , is a structural schematic diagram of a large-diameter primary mirror lifting mechanism provided in an embodiment of the present invention, including: lifting screws (1), lifting cylinders (2), transition cylinders (3), radial positioning components (4), bottom positioning components ( 6), bottom circular plate (7) and bottom transition plate (8).

[0030] The lifting screw (1) is fixedly connected to the upper part of the ...

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Abstract

The invention provides a large-aperture main lens lifting mechanism. A hoisting screw (1) is fixedly connected with the upper part of a hoisting cylinder (2), the upper part of a transition cylinder (3) is fixedly connected with the lower part of the hoisting cylinder (2); the lower part of the transition cylinder (3) is mounted on a bottom transition plate (8); a radial positioning assembly (4) is mounted on the outer circumference of the transition cylinder (3); the radial positioning assembly (4) can move up and down along the transition cylinder (3); a bottom circular plate (7) is mountedon the bottom transition plate (8); the bottom circular plate (7) is arranged around the outer circumference of the transition cylinder (3); and the bottom positioning assembly (6) is fixedly installed at the bottom of the bottom round plate (7). According to the large-aperture main lens lifting mechanism provided by the invention, the lifting process of a main lens is realized by utilizing the central hole of the main lens and the central edge of the bottom. The structure is compact, and the outer edge of the main lens cannot be occupied; and the large-aperture main lens lifting mechanism isapplied widely.

Description

technical field [0001] The invention relates to the technical field of optical instruments, in particular to a lifting mechanism for a large-caliber primary mirror. Background technique [0002] In the technical fields of space detection and astronomical observation, in order to improve the resolution, it is necessary to increase the aperture of the photoelectric detection equipment, resulting in a sharp increase in the size and weight of the primary mirror, and the cost is very expensive. Due to the fragility and fragility of the material of the primary mirror, its lifting, installation, handling and other operations are accompanied by great risks. If in the above process, disturbances such as excessive local stress and vibration overload may lead to irreversible damage such as chipping, breaking, and fracture of the primary mirror, this will bring great delay and delay to the development and service life of the entire photoelectric detection equipment. A sharp increase in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/183G02B7/198
CPCG02B7/183
Inventor 孙敬伟吴小霞李剑锋邵亮宿馨文王建立
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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