Non-polarizing image rotation apparatus and method

Details Non-polarizing image rotation apparatus and method Non-polarizing image rotation apparatus and method

1992-07-31

1994-03-22

Henry, Jon W.

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359401, G02B 1700, G02B 508, G02B 2764

Patent

active

052969720

ABSTRACT:
An optical system and method for rotating an image of an object is disclosed. The device consists of a plurality of optical surfaces for either reflecting or refracting the light along an optical path through the device. The optical surfaces divide the optical path into optical path segments which intersect at predetermined angles. These angles are selected to minimize polarization of the output light. The optical path segments lie in more than one plane.

REFERENCES:
patent: 1964075 (1934-06-01), Ott
patent: 2406798 (1946-09-01), Burroughs
patent: 3614448 (1971-10-01), DiProse et al.
patent: 4252410 (1981-02-01), Jain
patent: 4822150 (1984-04-01), Duarte
"Use of a three-mirror image rotator in a laser-produced plasma experiment", Applied Optics, vol. 18, No. 23, Dec. 1, 1979, pp. 3883-3884.
A. R. Chraplyvy, "Polarization . . . ", Applied Optics, vol. 15, Sep. 1976, pp. 2022-2023.

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