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:
Jun. 29, 1976
Filed:
May. 15, 1975
Tung Chang Chen, Villanova, PA (US);
Other;
Abstract
The present device comprises a mirror means rotatably mounted on a flash unit whereby the mirror lies in a partially rotatable marquee posture, protruding from the front side of an automatic electronic flash unit, over the sensor unit. The mirror housing can be rotated in response to the flash unit being rotated so that light which has been bounced from one or more surfaces, before reflecting from the subject to be photographed, is reflected from the mirror surface to the sensor unit for the purpose of controlling the duration of the flash to effect a proper exposure of the film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile