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. 30, 1999
Filed:
Jan. 14, 1998
Dwight J Petruchik, Honeoye Falls, NY (US);
Donald P McGinn, Palmyra, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A camera comprises an exposure counter for indicating the number of frames of a film load that have been exposed or remain to be exposed, and a flash illumination light source for illuminating a subject being photographed. The exposure counter has a phosphorescent substance that becomes luminescent due to the absorption of radiation and continues with an afterglow some time after the radiation has stopped, to permit one to read the exposure counter in dimly lit or dark ambience. A light pipe directs illumination from the light source to the phosphorescent substance. Thus, the exposure counter can be read in dimly lit or dark ambience after the light source has been used.