Star sensor optical system based on APS (Automatic Protection Switching) detector
An optical system and star sensor technology, applied in optics, optical components, instruments, etc., can solve the problems of unfavorable system attitude measurement accuracy, improvement, and small number of stars, and achieve optimal design, smooth image plane, and diffuse spot distribution uniform effect
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[0051] Such as figure 1 , figure 2 As shown, the star sensor optical system based on the APS detector includes a first positive lens 1, a second positive lens 2, a first negative lens 3, a diaphragm 4, and a second negative lens whose axes are arranged in a straight line. 5. The third positive lens 6, the third negative lens 7, the fourth positive lens 8 and the fourth negative lens 9;
[0052] The optical properties of the first positive lens 1 are:
[0053] 4.5f′1 '1 1 1 ', R 2 1 ';
[0054] The optical characteristics of the second positive lens 2 are:
[0055] 1f′2 '2 3 2 ', 3.5f 2 '4 2 ';
[0056] The optical characteristics of the first negative lens 3 are:
[0057] -2f′3 '3 3 '5 3 ', -2.5f 3 '6 3 ;
[0058] The optical characteristic of the second negative lens 5 is:
[0059] -2f′4 '4 4 '7 4 ', R 8 4 ';
[0060] The optical characteristics of the third positive lens 6 are:
[0061] 0.5f'5 '5 5 '9 5 ', -2.5f 5 '10 5 ';
[0062] The optical characteristics...
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