Multi-focal length, multi-field of view three mirror anastrigmat

Details Multi-focal length, multi-field of view three mirror anastrigmat Multi-focal length, multi-field of view three mirror anastrigmat

1988-10-17

1990-10-23

Henry, Jon W.

350620, 350558, G02B 1706, G02B 2306, G02B 510, G02B 718

Patent

active

049647067

ABSTRACT:
A three-mirror anastigmat system has a plurality of focal lengths, fields of view or both reflected to its focal planes. The system includes a positive power primary mirror (10) and a negative power secondary mirror (12) transmitting an image of an object to be viewed to a plurality of tertiary mirrors (14 and 16) operating at various magnifications. The tertiary mirrors (14 and 16) provide the plurality of images with different or the same focal lengths and fields of view to the plurality of focal planes (22 and 24).

REFERENCES:
patent: 4812030 (1989-03-01), Pinson

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