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:
Oct. 27, 1992
Filed:
May. 20, 1991
Hideto Shirane, Tokyo, JP;
Takao Umetsu, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A variable focal length camera is provided with a built-in flash unit having a wide illuminating angle, and an external flash unit having a narrower illuminating angle can be externally attached to the camera. When the taking lens is set in a short focal length region, the external flash unit is used for pre-emission prior to an exposure so as to prevent the red-eye phenomenon, and a built-in flash unity is used for main-emission during the exposure. When the taking lens is set in a long focal length region, the built-in flash unit is used for the pre-emission and the external flash unit is used for the main-emission.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile