Compact zoom lens having a weak front lens group

Details Compact zoom lens having a weak front lens group Compact zoom lens having a weak front lens group

1991-12-13

1993-12-14

Arnold, Bruce Y.

Optical: systems and elements

Lens

With variable magnification

359717, 359795, G02B 1514

Patent

active

052708675

ABSTRACT:
A zoom lens having two units of lens components including from the object side a positive optical unit and a negative optical unit. The positive optical unit includes two lens subunits, a weak power subunit, and a positive power subunit, while the negative optical unit consists of a negative lens component and provides most of the magnification change during zooming.

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