Camera system and zoom lens

Details Camera system and zoom lens Camera system and zoom lens

2005-05-31

2008-11-04

Spector, David N (Department: 2873)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C359S684000, C359S676000, C348S231990

Reexamination Certificate

active

07446804

ABSTRACT:
The present invention provides a camera system which comprises: a zoom lens; phototaking means converting an image captured by the zoom lens into an electric image signal; and image control means, in which the zoom lens is made up of a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having negative refracting power, and a fifth lens group having positive refracting power, which are disposed in this order from an object side, and is configured so that the first lens group, the third lens group, and the fifth lens group are stationary; the second lens group is shifted in an optical axis direction to mainly perform variable power; and the fourth lens group is shifted in the optical axis direction to perform correction for image position fluctuations and focusing.

REFERENCES:
patent: 2006/0055815 (2006-03-01), Nanjo et al.
patent: 2006/0152816 (2006-07-01), Kuroda et al.
patent: 2007/0008418 (2007-01-01), Kuroda et al.
patent: 08-248318 (1996-09-01), None
patent: 11-084239 (1999-03-01), None
patent: 2000-105336 (2000-04-01), None

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