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Catadioptric optical system and image pickup apparatus having the same
Catadioptric optical system and image pickup apparatus having the same
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机译:折反射光学系统和具有该折反射光学系统的图像拾取装置
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摘要
A catadioptric optical system includes a first imaging optical system that includes a catadioptric part that collects a light beam from an object to form an intermediate image of the object, and a second imaging optical system that includes a refractive part that images the intermediate image on an image plane. The first imaging optical system includes a first optical element, a second optical element, and a negative lens in an optical path between the first and second optical elements, and the first and second optical elements are disposed so that reflection parts of the first and second optical element face each other. A power φn of the negative lens, radii of curvature R1n and R2n of lens surfaces of the negative lens at an object side and an image side, respectively, and a power φ1 of the first imaging optical system are appropriately set.
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机译:反射折射光学系统包括:第一成像光学系统,其包括反射折射部分,该反射折射部分收集来自物体的光束以形成物体的中间图像;第二成像光学系统,其包括折射部分,该折射部分将中间图像成像在物体上。图像平面。第一成像光学系统在第一光学元件和第二光学元件之间的光路上包括第一光学元件,第二光学元件和负透镜,并且布置第一光学元件和第二光学元件以使得第一光学元件和第二光学元件的反射部分光学元件彼此面对。负透镜的屈光度φn,曲率半径R 1 B> n I>和R 2 B> n I>分别适当地设置在物侧和像侧的负透镜以及第一成像光学系统的光焦度φ1。
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