A Large Field of View High Precision Optical Scanning Mechanism

Abstract

A high-precision optical scanning mechanism with a large field of view belongs to the field of space remote sensing application technology, and aims to solve the problems of low structural stability, low reliability and heavy weight of a rotating body existing in the prior art. The invention includes a lens, a frame, a rotating shaft, a transmission mechanism, a right limit sensor and a left limit sensor; the two ends of the lens are assembled with the frame through the rotating shaft, and the motor drives the rotating shaft to rotate through the transmission mechanism, and then drives the lens to rotate, so as to realize the rotation of the lens For scanning imaging, the frame is equipped with a right limit sensor and a left limit sensor at both ends of the lens rotation direction to locate the position of the lens at the limit angle of ±70°. The rotating part of the present invention only includes the lens necessary for scanning and imaging to reduce the weight of the rotating body, reduce the height of the center of mass, and improve the structural stability; the cable passes through the shaft holes at both ends of the lens to facilitate the connection and arrangement of the cable and minimize the The damage to the cable caused by the rotation of the mechanism can be avoided, thereby improving the reliability of the lens operation.

Description

Technical field [0001] The invention belongs to the technical field of space remote sensing applications, and specifically relates to a large field of view high-precision optical scanning mechanism of a space optical remote sensor. Background technique [0002] Due to the particularity of the location and environment, space optical remote sensors have unique advantages in earth imaging and astronomical observations. The development and application of space optical remote sensing technology has important scientific and military significance. Constrained by the imaging quality and diffraction limit, the field of view of the optical lens cannot be made very large. In order to meet the use requirements, the existing space optical remote sensor adopts a field of view scanning mechanism to obtain high-quality target image information in a large field of view. [0003] At present, there are two main types of field-of-view scanning mechanisms used on existing space optical remote sensors,...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low structural stability, low reliability and heavy weight of the rotating body in the prior art, and propose a large-field-of-view high-precision optical scanning mechanism with compact structure, simple principle, and convenient assembly and adjustment

Images