Lens systems

Details Lens systems Lens systems

1991-09-27

1993-04-06

Sugarman, Scott J.

Optical: systems and elements

Lens

High distortion lens

359663, 359708, 359740, 359752, 359753, G02B 1322, G02B 1318

Patent

active

052008614

ABSTRACT:
A lens system is provided which includes two lens units. The first lens unit includes two meniscus lenses whose concave surfaces face each other and the second lens unit has a positive power. The system can be configured to have a wide field of view and/or to be telecentric. In its basic form, a well-corrected lens having a relatively large aperture and field of view is achieved through the use of only three lens elements.

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patent: 4826311 (1989-05-01), Ledebuhr
patent: 4913540 (1990-04-01), Minefuji
patent: 4925279 (1990-05-01), Shirota

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