Optical system, and optical apparatus

Details Optical system, and optical apparatus Optical system, and optical apparatus

2007-11-27

2007-11-27

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S665000

Reexamination Certificate

active

10900433

ABSTRACT:
The invention relates to an optical system that has reduced power consumptions, ensures noiseless operations and fast responses, contributes to cost reductions due to simplified mechanical structure, and, albeit having a small outside diameter and small size, is capable of focusing and zooming. The optical system of the invention comprises a variable mirror and a moving optical element group. The optical element group has a zooming function, and the variable mirror has a focusing function. An optical apparatus of the invention comprises such an optical system as mentioned above.

REFERENCES:
patent: 4784479 (1988-11-01), Ikemori
patent: 6128137 (2000-10-01), Togino
patent: 6437925 (2002-08-01), Nishioka
patent: 6464363 (2002-10-01), Nishioka et al.
patent: 2002/0036836 (2002-03-01), Hagimori
patent: 2003/0147146 (2003-08-01), Mikami
patent: 2001-004809 (2001-01-01), None

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