US 2006/0221465 A1Published application

Lens barrel assembly having outer and inner barrels

AssigneesFujinon Corporation, Fuji Photo Film Co., Ltd.

InventorsYukio Noguchi, Takashi Suzuki, Takehiko Senba

Life of this patent

Estimating the term…

Loading patent…

Abstract

A lens barrel assembly for use with a digital still camera includes an outer barrel having a front end and a rear end. An inner barrel is inserted in the outer barrel in an optical axis direction. The outer barrel moves forwards relative to the inner barrel, to shift between a short size position and a long size position, and when in the short size position, shifts from the inner barrel at a smallest shifting amount, and when in the long size position, shifts from the inner barrel at a largest shifting amount. A vent is formed in the outer barrel, and disposed close to the front end. A filter is water-impermeable and air-permeable, and secured to the vent in a closed manner. Also, a vent cover is secured to the outer barrel, for covering the vent.

Claims14

Dependent claims

A lens barrel assembly comprising:

an outer barrel having a front end and a rear end;
an inner barrel, having a front portion and a rear portion, inserted in said outer barrel in an optical axis direction;
wherein said outer barrel moves forwards or backwards relative to said inner barrel in said optical axis direction, to shift between a short size position and a long size position, and when in said short size position, shifts from said inner barrel at a smallest shifting amount, and when in said long size position, shifts from said inner barrel at a largest shifting amount;
a first vent, formed in a selected one of said outer and inner barrels to be positioned in front of a remaining one thereof, and disposed close to said front end or said front portion thereof;
and
a first filter, being water-impermeable and air-permeable, and secured to said first vent in a closed manner.

3 more elements

Dependencies are inferred from the claim text.