Optical: systems and elements – Lens – With variable magnification
Patent
1999-04-01
2000-08-08
Sugarman, Scott J.
Optical: systems and elements
Lens
With variable magnification
359687, 359690, G02B 1514
Patent
active
061010421
ABSTRACT:
To provide a zoom lens having wide field angle coverage, a zooming ratio of 3.5.times. or greater, and a large aperture such that F-number is on the order of F 2.8,
REFERENCES:
patent: 5583701 (1996-12-01), Yamanashi
patent: 5694253 (1997-12-01), Shibayama
patent: 5734508 (1998-03-01), Sato
Nikon Corporation
Sugarman Scott J.
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