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:
Jan. 29, 1991
Filed:
Mar. 21, 1990
Tatsuya Suzuki, Tokyo, JP;
Shunji Matsutani, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A bifocal camera includes a first and second photographic optical systems which have focal lengths different from each other. A stationary mirror is arranged on the optical axis of the first optical system, and an exposure opening is positioned on the optical axis of the second optical system. A movable mirror is arranged to be movable between first and second positions. At the first position, the movable mirror interrupts incident light beams from the second optical system and guides incident light beams, which are passed through the first optical system and reflected by the stationary mirror, to the exposure opening. At the second position, the movable mirror interrupts the light beams reflected by the stationary mirror and allows the incident light beams form the second optical system to be made incident to the exposure opening. The movable mirror is shifted to the second position by a switching mechanism when a film is to be transferred along the exposure opening.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile