18 November 2014 Telecentric system with large-field for surveillance and measuring camera in space station
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Abstract
Spacing movable mechanic components are needed not only to move in wide range but also to complete series of actions with high degree of accuracy and stability when processing on orbit. So, visual monitor system including the surveillance and measuring cameras must be equipped to achieve precise spacing location and posture information, and monitor and administer of movable mechanic components can be realized combined with the algorithm. Based on the requirements of the camera and the after algorithm for the center of mass and the distribution of spot on image plane at different object distance, the design peculiarity and difficulties are analyzed, optical design examples are also given at last. The optical system adopted telecentric structure, the relative aperture is 1/3.5, field of view reaches seventy-six degrees, wavelength ranges from 500nm to 800nm, the center of mass of the spot on image plane varies non-obviously, high modulation transfer function, low distortion and high relative illumination are achieved, all of these can wholly satisfied the using demands of the surveillance and measuring camera.
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Tian-jin Tang, Tian-jin Tang, Jing-bo Tong, Jing-bo Tong, } "Telecentric system with large-field for surveillance and measuring camera in space station", Proc. SPIE 9299, International Symposium on Optoelectronic Technology and Application 2014: Optical Remote Sensing Technology and Applications, 92990C (18 November 2014); doi: 10.1117/12.2070601; https://doi.org/10.1117/12.2070601
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