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:
Apr. 18, 2000
Filed:
Dec. 09, 1997
Shigenori Goto, Saitama, JP;
Hisashi Hamada, Saitama, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A roll photo film includes a photo filmstrip having an effective exposure region in which plural frames are formable one after another. Light-shielding leader and trailer are disposed on respective ends of the photo filmstrip. The roll photo film is pre-wound with the trailer wound inwards and with the leader wound outwards. A bar code is prerecorded between a front end of the leader and the effective exposure region, represents information of an auto input photosensitivity value. A camera is used with the roll photo film. In the camera, a bar code reader reads the bar code to detect the auto input photosensitivity value. A photosensitivity dial is externally operable, and inputs a manual input photosensitivity value. A mode selector, in combination of a pointer and a movable indicia, is externally operable, and selects one of automatic and manual modes. The auto input photosensitivity value becomes effective when selecting the automatic mode. The manual input photosensitivity value becomes effective when selecting the manual mode. An exposure control unit controls an amount of exposure to the effective exposure region in accordance with an effective one of the auto and manual input photosensitivity values.