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:
Feb. 23, 1999
Filed:
Nov. 20, 1997
Yukihiko Yamaguchi, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A lens-fitted photo film unit is pre-loaded with unexposed photo film, and includes a taking lens. A shutter device is disposed between the taking lens and the photo film, and cocked in response to a winding operation of the photo film. The shutter device has a shutter blade for opening/closing a photographic light path in response to an external releasing operation. A flash device has a flash emitter window, and emits flash light in response to operation of the shutter device. Before inspection of the lens-fitted photo film unit, a front of the flash emitter window or a periphery of a front of the light path is covered by use of a light-shielding member. The light-shielding member avoids entry of flash light emitted from the flash emitter window into the light path. The flash device is charged. The shutter mechanism is cocked. The shutter mechanism is released while the light-shielding member covers the front. An operation of opening/closing of the shutter mechanism is inspected in response to the releasing operation. An operation of flash emission of the flash device is inspected.