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:
Feb. 20, 1990
Filed:
Jan. 30, 1989
Richard W Lourette, Rochester, NY (US);
J David Cocca, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A photographic apparatus for facilitating the calibrating and/or testing of a taking lens of a photographic camera comprises a photographic camera having a film chamber adapted to receive a conventional film cartridge having a code pattern on its surface. The camera includes a microprocessor provided with a first mode of operation for completing a picture taking cycle and a second mode of operation for facilitating the calibration and/or testing of the taking lens. The film chamber is provided with a plurality of electrical contacts for sensing the code pattern on the film cartridge. The photographic apparatus further includes a cartridge facsimile similar in shape and size to the conventional film cartridge. The cartridge facsimile has a diode attached thereto such that when the cartridge facsimile is inserted into the film chamber the diode will make contact between two of the electrical contacts. The microprocessor is programmed such that when it senses the presence of the diode, the microprocessor will be rendered operative in its second mode of operation, whereby a shutter opening blade is unlatched in response to a signal from the microprocessor to uncover the lens allowing an operator to calibrate the lens.