A high-resolution lunar edge optical imaging objective lens

Abstract

A high-resolution lunar edge optical imaging objective lens belongs to the technical field of optical systems. In order to solve the problems existing in the prior art, the imaging objective lens is coaxially arranged with an isosceles Dawei reflective prism group, a plane reflector, and an imaging Lens group, diaphragm, detector protection glass and detector, plane reflector are located at the front end of the isosceles Dove reflective prism group, the isosceles Dove reflective prism group, which includes eight isosceles prisms uniformly distributed circumferentially around the Z axis Wei reflective prism; the incident light is incident on the lower surface of each isosceles Dawei reflective prism of the isosceles Dawei reflective prism group. The waist is transmitted, and then reflected by the plane mirror, and the reflected light is transmitted by the imaging lens group and the detector protective glass in turn, and is received by the detector; it can meet the requirements of high-precision attitude determination of lunar satellites.

Description

technical field [0001] The invention relates to a high-resolution lunar edge optical imaging objective lens, which belongs to the technical field of optical systems. 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-processing, and requir...

AI Technical Summary

Problems solved by technology

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 satellite attitude determination accuracy is very dependent on the orbit determination accuracy, 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-processing, and requires the use of aspheric lens structures, special lens materials, etc., resulting in high manufacturing and testing costs for optical system parts and complete machines, and uncertain working stability in space environments

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