Long working distance microscopic optical system for vacuum chamber inner observation

Abstract

The invention provides a long working distance microscopic optical system for vacuum chamber inner observation and relates to the field of optical design. The long working distance microscopic optical system for the vacuum chamber inner observation solves the problem that an existing small-scaled long working distance microscopic optical system suitable for space application can not conduct observation on a small object in a vacuum chamber. Window glass, a first concave lens, a second concave lens, a third convex lens, a fourth concave lens, a fifth convex lens, a fifth concave lens, a sixth convex lens, a sixth concave lens, a seventh convex lens and a seventh concave lens are sequentially arranged on the optical system from an object plane to an image plane along an optical axis. The distance d1 between the object plane and the window glass is 98mm. Light beams from the object plane sequentially pass through the window glass, the first concave lens, the second concave lens, the third convex lens, the fourth concave lens, the fifth convex lens, the fifth concave lens, the sixth convex lens, the sixth concave lens, the seventh convex lens and the seventh concave lens to the image plane. The long working distance microscopic optical system for the vacuum chamber inner observation lengthens the front working distance to 98mm, the small object in the vacuum chamber can be observed at a long distance, and chromatic aberration is corrected.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to a long working distance micro-optical system for observation in a vacuum cavity. Background technique [0002] With the continuous improvement of the coverage and spatial resolution requirements of space remote sensors in many fields such as resource census and military reconnaissance, the demand for the development of space cameras with large fields of view and long focal lengths is becoming increasingly urgent. An important direction for the development of space remote sensors. [0003] In the process of developing a long focal length space camera, it is necessary to test the adaptability of the structure of the space camera to the space environment, such as the deformation of the support structure of the space camera in a thermal vacuum environment and the vacuum deflation deformation characteristics of carbon fiber materials. To observe the amount of deformation, a mi...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing miniaturized and long working distance micro-optical system suitable for space applications cannot carry out long-distance observation of tiny targets in the vacuum cavity, the present invention provides a long working distance for observation in the vacuum cavity Microscopic optical system, which increases the front working distance and realizes the observation of tiny targets in the vacuum cavity

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