Imaging lens system

Details Imaging lens system Imaging lens system

1997-02-18

1998-04-14

Sugarman, Scott J.

Optical: systems and elements

Lens

Multiple component lenses

359663, 359715, 359740, 359753, G02B 934, G02B 1322, G02B 1318, G02B 1304

Patent

active

057399662

ABSTRACT:
An imaging lens system consisting of a front lens unit which comprises a negative lens component disposed on the image side and has a positive refractive power, and a rear lens unit which is composed of a positive lens component: a distance ffb as measured from an object side surface of the rear lens unit to a front focal point of the rear lens unit, a distance D as measured from an exit pupil of the front lens unit to an object side surface of the rear lens unit, and refractive powers of the front lens unit and the rear lens unit being adequately defined for the imaging lens system.

REFERENCES:
patent: 2600805 (1952-06-01), Reiss
patent: 2694959 (1954-11-01), Baker
patent: 3633985 (1972-01-01), Mouchart

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