| 摘要 |
A wide-angle optical system ( 2, 40 ) having an objective ( 4, 42 ) and a mirror system, including a curved mirror ( 6, 46 ) for projecting a wide-angle image through the objective ( 4, 42 ) onto a detector ( 10, 44 ). At least one mirror ( 8, 46 ) of the mirror system is arranged movably relative to the objective ( 4, 42 ). It is possible to achieve a zoom function, a large elevation range and a selection of an enlarged section from the wide-angle image.
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