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:
Mar. 24, 1992
Filed:
Nov. 09, 1990
Toshiaki Matsumoto, Osaka, JP;
Takeo Hoda, Kawachinagano, JP;
Yoshiaki Hata, Nishinomiya, JP;
Masatoshi Kamitani, Osaka, JP;
Norihiro Inoue, Nara, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
The present invention provides a bifocal camera capable of changing focal length of a photographic lens system and having lens drive means operable by a motor to switch the photographic lens system between a first focal length state wherein a main lens component is located at a rear position and a second focal length state wherein the main lens component is located at a front position and an auxiliary lens component is located at an operative position. This camera comprises a device for automatically stopping the motor when shifting of the main lens component is interrupted by force, and a device for restricting the shifting of the main lens component between the front position and the rear position. The auxiliary lens component is moved and a lens barrier is opened and closed in interlocked relationship with the shifting of the main lens component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile