Lens apparatus and image pickup apparatus

Details Lens apparatus and image pickup apparatus Lens apparatus and image pickup apparatus

2006-03-24

2010-02-02

Stultz, Jessica T (Department: 2873)

Optical: systems and elements

Lens

With support

C359S822000, C359S704000

Reexamination Certificate

active

07656596

ABSTRACT:
A lens apparatus and image pickup apparatus thereof. The lens apparatus includes a first fixed lens-barrel with fixed-side first guide grooves and fixed-side second guide grooves, a first movable lens-barrel arranged at the outside of the fixed lens-barrel, movable-side first guide grooves, a second movable lens-barrel arranged at the inside of the fixed lens barrel, and movable-side guide grooves. Three first rolling element units are provided between the fixed-side guide grooves and the movable-side first guide grooves, and three second rolling element units are provided between the fixed-side second guide grooves and the movable-side second guide grooves. The first movable lens-barrels and the second movable lens-barrels are supported to the one-group lens and the two-group lens in such a manner that they can be independently moved in the optical axis directions of the first and second lenses.

REFERENCES:
patent: 4190325 (1980-02-01), Moreno
patent: 4709311 (1987-11-01), Bornhorst
patent: 5052781 (1991-10-01), Iizuka
patent: 5483384 (1996-01-01), Takizawa et al.
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patent: 7102837 (2006-09-01), Hamasaki et al.
patent: 2004/0008421 (2004-01-01), Yoshida et al.
patent: 196 42 796 (1997-05-01), None
patent: 11-084210 (1999-03-01), None
International Search Report (PCT/ISA/210); International Application No. PCT/JP2006/306768; Dated: Jun. 16, 2006.

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