Free-form surface off-axis three-reflector image-space telecentric optical system
A telecentric optical system and off-axis three-mirror technology, applied in optics, optical components, instruments, etc., can solve the problems of increasing the difficulty of system design, difficult conventional rotational symmetric surface correction, etc., to achieve similar quality, small F number, energy The effect of high utilization
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[0013] The free-form surface off-axis three-mirror image square telecentric optical system provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] see figure 1 with 2 , the embodiment of the present invention provides a free-form surface off-axis three-mirror image square telecentric optical system 100 , including: a main reflector 102 , a primary reflector 104 , a third reflector 106 and an image sensor 108 . The secondary reflector 104 is located on the reflection optical path of the main reflector 102 ; the third reflector 106 is located on the reflection optical path of the secondary reflector 104 ; the image sensor 108 is located on the reflection optical path of the third reflector 106 . The reflection surfaces of the primary reflector 102 , the secondary reflector 104 and the third reflector 106 are all free-form surfaces.
[0015] The optical path of the free-form sur...
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