Optical system for zoom-camera

Details Optical system for zoom-camera Optical system for zoom-camera

2006-10-03

2006-10-03

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S822000

Reexamination Certificate

active

07116488

ABSTRACT:
Disclosed is an optical system of a zoom-camera comprises a plurality of lens groups so that the path of a light can be multi-directionally refracted. The optical system comprises a base member, a first lens group mounted on the base member for refracting a light reflected and incident from an object to a first direction, a second lens group for effecting a zoom function, a third lens group for refracting the light passing through the second lens group to a second direction, a fourth lens group for effecting a zoom function as well as a focusing function while compensating a variation of an image plane caused by the zoom function, and power transmission means for transmitting power for sliding the second and fourth lens groups.

REFERENCES:
patent: 6333823 (2001-12-01), Ozaki et al.
patent: 6498624 (2002-12-01), Ogura et al.

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