Lens apparatus and camera

Details Lens apparatus and camera Lens apparatus and camera

2006-05-16

2006-05-16

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S694000, C359S823000

Reexamination Certificate

active

07046456

ABSTRACT:
A lens apparatus is disclosed which allows a reduced overall length when it is put into a barrel body while a high magnification of taken images is realized. The lens apparatus includes a first holding member which holds a first lens unit; a second holding member which holds a second lens unit disposed closer to an image plane side than the first lens unit; a first cam member which has a first cam portion driving the first holding member in an optical axis direction; a second cam member which has a second cam portion driving the first cam member in the optical axis direction; and a third cam member which includes a third cam portion driving the second holding member in the optical axis direction.

REFERENCES:
patent: 6002531 (1999-12-01), Nakashima et al.
patent: 6008954 (1999-12-01), Shintani et al.
patent: 6278844 (2001-08-01), Takeshita
patent: 2000-194045 (2000-07-01), None
patent: 3297658 (2002-07-01), None

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