Large-aperture high-resolution daytime imaging optical system

Abstract

The invention provides a large-aperture high-resolution daytime imaging optical system, relates to the field of large-aperture high-resolution imaging detection, and solves the problems of a severe requirement for working time, incapability of imaging in daytime, low imaging resolution, incapability of flexibly distributing stations and the like existing in an existing optical imaging system. The large-aperture high-resolution daytime imaging optical system includes a main optical system, a relay optical system, an tilt correction optical system and a high-resolution imaging optical system which are located on the same optical axis, target light first passes through the main optical system, enters the relay optical system, then is subjected to spectrum light splitting through a dichroic mirror, a short wave infrared band is reflected to enter the tilt correction optical system, and precise tracking of a daytime target and atmosphere tilt correction are performed; and a visible light near-infrared band is transmitted to be distributed to the high-resolution imaging optical system, and high-resolution imaging is performed on the target in daytime. The system provided by the invention can perform precise tracking and high-resolution imaging on the target in a strong-light background in daytime, and realizes an all-day function of the optical imaging system.

Description

technical field [0001] The invention relates to the field of large-aperture high-resolution imaging detection, in particular to a large-aperture high-resolution daytime imaging optical system. Background technique [0002] High-resolution imaging recognition of low-orbit space targets is a direct and effective means for low-orbit satellites and other space target recognition. Compared with the infrared band, the visible light imaging system has better resolving power under the same aperture. However, due to the influence of skylight and the atmosphere, visible light and near-infrared high-resolution imaging systems can usually only compensate for the influence of atmospheric turbulence through adaptive imaging in the morning and dusk, when the relative position of the sun and the observatory is relatively good, and obtain the target high-resolution image information. Therefore, high-resolution imaging cannot be achieved during the day, and the observation time is less than...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the existing problems of the existing optical imaging system, such as strict requirements on working time, incapability of imaging during the day, low imaging resolution, and inability to maneuver stations.

Provide a large-aperture high-resolution daytime imaging optical system

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