Optical lens for spaceflight

Abstract

The invention discloses an optical lens for spaceflight, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a diaphragm, a seventh lens, an eighth lens, a ninth lens and a tenth lens which are sequentially arranged from an object side to an image side. The first lens and the second lens are both negative meniscus lenses protruding towards the object side. The third lens is a negative meniscus lens protruding towards the image space or a biconcave lens, the fourth lens is a positive meniscus lens protruding towards the image space, the fifth lens is a positive meniscus lens protruding towards the object space or a plano-convex lens or a biconvex lens, the sixth lens is a positive meniscus lens protruding towards the object space, the seventh lens is a biconvex lens, the eighth lens is a plano-concave lens or a biconcave lens, the ninth lens is a biconvex lens, the tenth lens is a biconvex lens, all the lenses are not glued, and the first lens and the tenth lens are single-sided aspheric lenses, so that the optical lens disclosed by the invention can realize large field of view, low distortion and athermalization.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to an optical lens for aerospace. Background technique [0002] With the development of the aerospace industry to a higher level, for special space activities such as extravehicular activities of astronauts and spacecraft flight environments, it is necessary to install a camera device that can work in the outer space environment, and the optical system of the camera device must not only have In addition to the characteristics of large field of view and low distortion, it is also necessary to ensure that its imaging performance can remain stable under conditions such as aircraft landing, drastic temperature changes, and high-flux cosmic radiation. Impact resistance, temperature stability, radiation resistance, large field of view, and low distortion optical lenses for aerospace are necessary. [0003] The existing wide-angle optical system mostly adopts a multi-lens refractio...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a large field of view, low distortion, and adiabatic optical lens for aerospace, aiming to solve the problem that the optical lens cannot work for a long time in the outer space environment in the prior art, and cannot meet the radiation requirements of the outer space environment. Issues of adaptability, temperature changes, and shock vibration requirements for optical systems during satellite launches

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