A catadioptric off-axis large field of view imaging optical system
A technology of imaging optics and a large field of view, which is applied in the field of optical applications, can solve the problems that the imaging quality of the optical system is easily affected, and achieve good imaging quality, reduced detection and assembly difficulty, and small size.
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[0035] Embodiment 1: Combining Figures 1 to 2 This embodiment is described, a catadioptric off-axis large field of view imaging optical system, which includes a coaxial refracting mirror group, an off-axis reflective mirror group and an image plane 11, wherein the coaxial refracting mirror group includes a coaxial light along the incident direction of the light A number of lenses arranged in order on the axis, the off-axis mirror group includes a first mirror 9 and a second mirror 10 used off-axis, and the first mirror 9 is an even-order aspheric surface, which is relative to the coaxial The off-axis angle of the optical axis of the refracting lens group is 8°, the second reflecting mirror 10 is a spherical surface, and the off-axis angle relative to the optical axis of the coaxial refracting lens group is 10.4°.
[0036] In this application, different lenses are used to combine each other and reasonably distribute the optical power. The coaxial refracting lens group is respo...
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