Imaging system having a dual cassegrain-like format

作者: Allan David Beach

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摘要: An optical imaging system (100) has a Cassegrain-like front end (1) with substantially spherical concave primary mirror (3) and convex secondary (4), rear (2) (7) 8, field lens (5) to image the aperture stop of position where it forms entrance pupil (100). aberration corrector (6) may be provided correct selected aberrations.

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