The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1994
Filed:
Oct. 30, 1992
Kazuhiro Satoh, Sagamihara, JP;
Tatsuya Suzuki, Tokyo, JP;
Hiroshi Akitake, Sagamihara, JP;
Moriya Katagiri, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A waterdrop-proof camera includes lens frames which are moved backward and forward relative to an optical axis during zooming or focusing; a camera main body in which the lens frames are slidably held in a liquid-sealed state; vent holes, provided in positions where they will not be covered by the hand of a user, on either the wall surface of the camera main body or that of the lena frames, through which vent holes the inside of the camera is communicated with the outside thereof; and a sheet-like member, having sufficient water repellency and air permeability, arranged on the camera body containing the inner side of the vent holes so as to seal them. A sealing member formed from a elastic member is fixed to either one of first and second lens frames which move relative to each other, by which sealing member one of the lens frames is radially pressed against the other, so that a section between the two lens frames is waterproofed. In addition, a device is disposed for increasing the amount of pressure at a specific focal distance or in a state in which the lens frames are housed.