Optical system

Details Optical system Optical system

1991-06-06

1992-08-04

Bovernick, Rodney B.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359205, 359837, 250236, G02B 2608, G02B 1700

Patent

active

051364174

ABSTRACT:
A scanning thermal imager includes means to compensate for a degree of undesirable asymmetry introduced by an element such as a spherical lens operating in an off axis manner. The means can advantageously include an optical element mounted in the optical path with at least one main face at an angle other than normal to the path and arranged to introduce a desired degree of compensating asymmetry.

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patent: 4743112 (1988-05-01), Burke
patent: 4832429 (1989-05-01), Nagler
patent: 5032014 (1991-07-01), Toga

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