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:
Sep. 10, 2002
Filed:
Apr. 04, 2001
Timothy J. Fuss, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A camera adapted to receive any one of a plurality of film loads having different film speeds includes a film speed sensing device for sensing the particular film speed of a film load in the camera, an aperture setting device adjustable to effect different-diameter film exposing apertures, a shaped memory alloy (abbreviated to SMA) wire which when subjected to electrical current for different durations corresponding to the respective film speeds of the film loads is heated to undergo corresponding shape changes to adjust the aperture setting device to the respective film exposing apertures, and a current supplying circuit connected to the SMA wire and to the film speed sensing device that subjects the SMA wire to electrical current for any one of the durations in accordance with the particular film speed of a film load in the camera.