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Optical lens with dustproof and vacuum pumping function

A vacuum exhaust and optical lens technology, applied in optics, optical components, installation, etc., can solve the problems of no dustproof effect, reduced performance of the optical system, and impact on equipment accuracy, etc., and achieves simple structure and meets the requirements of vacuum exhaust , easy to achieve effect

Inactive Publication Date: 2011-04-20
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optical system needs to be stored, installed, debugged, and field tested on the ground before launch. During this period, the dust in the air will enter the optical system through the exhaust holes and ventilation slots, and adhere to the glass lens. on, making the performance of the optical system degrade
In addition, after the lunar rover lands on the moon, moon dust will also enter the various optical equipment on the lunar rover through the exhaust holes and ventilation slots, affecting the accuracy of the equipment.
Therefore, the current ventilation device only has the exhaust effect and does not have the dustproof effect.

Method used

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  • Optical lens with dustproof and vacuum pumping function
  • Optical lens with dustproof and vacuum pumping function
  • Optical lens with dustproof and vacuum pumping function

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Embodiment Construction

[0017] The invention provides an optical lens with dustproof and vacuum exhaust functions, which includes a lens barrel and an exhaust hole arranged on the wall of the lens barrel, and the device also includes a microporous material made of a microporous material arranged on the exhaust hole. Complete dustproof parts. The dust-proof parts are dust-proof nails suitable for the aperture of the vent hole, dust-proof covers arranged outside the vent hole, or dust-proof rings, dust-proof mats or dust-proof pads arranged on the inner wall of the lens barrel corresponding to the positions of the vent holes. dust circle. The material used in the present invention is a microporous material. A microporous material refers to a large number of open or closed tiny pores inside or on the surface of the material. Porous metal material, can choose the microporous material of corresponding pore diameter according to the diameter of dust particle, the pore diameter of microporous material shou...

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Abstract

The invention relates to the dustproof and vacuum pumping hardware of an optical system, in particular to an optical lens with a dustproof and vacuum pumping function. The optical lens comprises a lens cone, a vent hole, and a dustproof component, wherein the vent hole is arranged on a lens cone wall; and the dustproof component is arranged on the vent hole and is made of a cellular material. The optical lens has the good exhaust performance and the effective dustproof and vacuum pumping function.

Description

technical field [0001] The invention relates to a dust-proof and vacuum exhaust device for an optical system, in particular to a dust-proof and vacuum device for preventing dust from entering the interior of the lens through an exhaust hole when space payload equipment is stored on the ground or working in a dusty environment. Optical lens for exhaust function. Background technique [0002] The optical systems of satellite payloads such as space cameras, star sensors and other equipment work in a vacuum environment. During the launch process of the satellite, the air inside the optical system is gradually discharged through the pre-designed exhaust device, so that the optical system will not The internal and external pressure difference is generated, thereby avoiding stress deformation or fragmentation of the lens due to the pressure difference. At present, in order to exhaust the optical system, the general design is to process exhaust holes on the frame and open air groov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02
Inventor 王虎刘杰苗兴华汶德胜王锋丰善
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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