Dustproof film for lens surface of optical device

Abstract

The invention discloses a dustproof film for the surface of an optical device lens, and the dustproof film comprises a micro-texture layer which is disposed on the surface of the optical device lens through a chemical etching method, a particle erosion method or a laser etching method. The micro-texture layer is composed of a plurality of micro-texture units which are arranged on the surface of the lens of the optical device at intervals in a regular arrangement mode or a crossed and staggered arrangement mode. The micro-texture layer is coated with an anti-reflection wear-resistant layer or a composite coating through a vacuum coating method, a chemical vapor deposition method or a sol-gel method. According to the dustproof film, the light transmittance can be guaranteed while the function of preventing dust deposition is achieved, collision damage of microparticles to a certain degree is resisted, the durability is high, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of dust-proofing on the surface of optical devices, in particular to a dust-proof film for the surface of a lens of an optical device. Background technique [0002] As the only large-scale celestial body outside the near-Earth space, the moon is rich in various mineral resources and energy resources, and its development is of great economic value. Countries around the world have successively carried out lunar exploration activities, including releasing lunar surface probes to investigate, collect and analyze lunar surface samples It is the main means of lunar exploration at present. Optical devices, as an important part of lunar probes, play an important role in lunar surface inspection and collection activities. However, the environment on the lunar surface is complex, and lunar exploration activities face various severe tests. Dust effect, the particle size of lunar dust is mostly less than 100 μm, and the...

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Problems solved by technology

[0002] As the only large-scale celestial body outside the near-Earth space, the moon is rich in various mineral resources and energy resources, and its development is of great economic value. Countries around the world have successively carried out lunar exploration activities, including releasing lunar surface probes to investigate, collect and analyze lunar surface samples It is the main means of lunar exploration at present. Optical devices, as an important part of lunar probes, play an important role in lunar surface inspection and collection activities. However, the environment on the lunar surface is complex, and lunar exploration activities face various severe tests. Dust effect, the particle size of lunar dust is mostly less than 100 μm, and the diameter of suspended particles on the lunar surface is even less than 20 μm. The speed of the lunar rover is usually low when walking on the lunar surface. These tiny moon dust particles are very easy to collide with the surface of optical devices at low speed This will lead to the deposition of moon dust on the surface of optical devices, causing serious impacts. For example, the deposition of moon dust on the surface of photovoltaic cells will directly affect the concentration rate of the system and reduce the efficiency of solar photovoltaic power generation. The deposition of moon dust on the surface of optical lenses not only blocks the line of sight, but also Reduce the light transmittance and clarity, affect the imaging quality of the shooting, and even cause damage to the device, failure to use it normally, etc. Therefore, the dust-proof surface of the optical device is of great significance to the smooth progress of lunar exploration activities

[0003] Aiming at the problem of lunar dust deposition, various corresponding anti-dust technologies have been proposed to suppress or remove lunar dust adhesion, such as mechanical vibration dust removal method, jet dust removal method, electric curtain dust re

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