Zoom lens

Details Zoom lens Zoom lens

2005-02-15

2005-02-15

Epps, Georgia (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S734000

Reexamination Certificate

active

06856468

ABSTRACT:
A zoom lens comprises in a direction of light propagation a front lens group (G1) having positive refractive power, a variator lens group (G2) having negative refractive power, a compensator lens group (G3) having positive refractive power, and a base lens group (G4) having positive refractive power. The base lens group (G4) comprises a first base lens group (G4.1) and a second base lens group (G4.2). The front lens group (G1), the variator lens group (G2), the compensator lens group (G3) and the first base lens group (G4.1) are arranged along a common straight first optical axis (23). The second base lens group (G4.2) is arranged along a second optical axis23′) inclined with respect to the first optical axis (23) at a first angle α different from 0° and 180°. A beam deflector (18) is arranged between the first base lens group (G4.1) and the second base lens group (G4.2).

REFERENCES:
patent: 3743384 (1973-07-01), Nakamura
patent: 4749268 (1988-06-01), Moskovich et al.
patent: 5050972 (1991-09-01), Mukaiya et al.
patent: 5815323 (1998-09-01), Abe et al.
patent: 5963376 (1999-10-01), Togino
patent: 6333823 (2001-12-01), Ozaki et al.
patent: 20010046383 (2001-11-01), Hagimori et al.
patent: 58202420 (1983-11-01), None
patent: 59028121 (1984-02-01), None
patent: 60057813 (1985-04-01), None

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