Optical Imaging Objective Lens for Lunar Edge with Spherical Ring and Large Field of View

Abstract

The spherical annular large field of view lunar edge optical imaging objective lens belongs to the field of optical design technology. In order to solve the defects of high manufacturing and testing costs of optical system parts and complete machines in the prior art, and uncertain working stability in the space environment, according to the incident light The first plane mirror group, the second plane mirror group, the imaging mirror group, the diaphragm, the detector protection glass and the detector are coaxially arranged in sequence, the second plane mirror group is located at the front end of the first plane mirror group, and arranged in parallel; the first plane mirror group includes eight plane mirrors uniformly distributed around the Z-axis circumferential direction, the second plane mirror group includes eight plane mirrors uniformly distributed around the Z-axis circumferential direction, and two groups of plane mirrors There is one-to-one correspondence between the plane mirrors in the mirror group; the optical system is insensitive to the orbit height of the satellite around the moon, has high-resolution imaging, high imaging quality, and high pointing accuracy, and can adapt to the high-precision attitude determination of the spacecraft in the lunar reflection spectrum range, Reduce the attitude determination time of satellites flying around the moon.

Description

technical field [0001] The invention relates to a spherical annular large field of view lunar edge optical imaging objective lens, which belongs to the technical field of optical design. Background technique [0002] Satellites flying around the moon need to determine their own pitch and roll attitude in real time. The traditional attitude determination using the combination of star sensor and gyroscope requires the computer on the ground and the satellite to provide accurate orbit information. The accuracy of satellite attitude determination is very dependent on the accuracy of orbit determination, and the single attitude determination takes a long time. At the same time, when the star sensor on the near-orbit satellite around the moon images the moon, the optical system needs a field of view of 100° to 150° to cover the entire moon. For a single transmission imaging lens, small optical aberrations and high The pointing accuracy is relatively difficult in design and post-p...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of high manufacturing and testing costs of optical system parts and complete machines in the prior art, and uncertain working stability in space environment, the present invention provides a spherical annular large field of view lunar edge optical imaging objective lens

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