Optical system of close-distance object space telecentric butt-joint sensor

Abstract

The invention provides an optical system of a close-distance object space telecentric butt-joint sensor, which comprises window glass, a first lens disposed on the rear side of the window glass, a second lens disposed on the rear side of the first lens, a third lens disposed on the rear side of the second lens, an aperture diaphragm disposed on the rear side of the third lens, a fourth lens disposed on the rear side of the aperture diaphragm, a fifth lens disposed on the rear side of the fourth lens, a sixth lens disposed on the rear side of the fifth lens, a seventh lens disposed on the rear side of the sixth lens and a focal plane of the optical system, wherein light rays successively pass through the window glass, the first lens, the second lends, the third lens, the aperture diaphragm, the fourth lens, the fifth lens, the sixth lens and the seventh lens and are then sent to the focal plane of the optical system. In the optical system of the close-distance object space telecentric butt-joint sensor provided by the invention, the independent diaphragm is disposed between the third lens and the fourth lens, which can promote stray radiation suppression of the whole 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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