Near-distance object-space telecentric docking sensor optical system

Abstract

The invention provides an optical system of a short-distance object telecentric docking sensor, comprising a window glass, a first lens arranged on the rear side of the window glass, a second lens arranged on the back side of the first lens, and a second lens arranged on the back side of the second lens. The third lens on the rear side, the aperture stop disposed on the rear side of the third lens, the fourth lens disposed on the rear side of the aperture stop, the fifth lens disposed on the rear side of the fourth lens, and the fifth lens disposed on the rear side The sixth lens, the seventh lens arranged on the rear side of the sixth lens, and the focal plane of the optical system; wherein, the light passes through the window glass, the first lens, the second lens, the third lens, the aperture stop, the fourth lens in sequence The lens, the fifth lens, the sixth lens and the seventh lens shoot onto the focal plane of the optical system. In the present invention, there is an independent aperture between the third lens and the fourth lens, which is beneficial to the suppression of stray light in the entire optical system.

Description

technical field [0001] The invention relates to space docking optical technology, in particular to an optical system of a telecentric docking sensor at a short-distance object. Background technique [0002] With the rapid development of space science and technology, the space for human activities is constantly expanding into space. In order to realize the establishment of large-scale laboratories in space and the transportation of goods and personnel, a problem that must be solved is the docking technology of space vehicles. The docking sensor is the core equipment to ensure the smooth implementation of space docking. [0003] At present, there is no publicly released patent for optical systems dedicated to docking sensors in my country. According to the working characteristics of docking sensors, many optical systems applied to star sensors can also meet the needs of docking sensors. For example, Hao Yuncai et al. The released "An Attitude Sensor Optical System" has a large...

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Problems solved by technology

[0003] At present, there is no publicly released patent for optical systems dedicated to docking sensors in my country. According to the working characteristics of docking sensors, many optical systems applied to star sensors can also meet the needs of docking sensors. For example, Hao Yuncai et al. The released "An Attitude Sensor Optical System" has a large field of view and good image quality, which can meet the needs of star sensors and other attitude sensors. Since it is not a telecentric system, the change of imaging distance has a great influence on the measurement accuracy

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