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, 1996
Filed:
Dec. 23, 1994
Applicant:
Inventor:
Daniel T Meyerhoefer, Penfield, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
35414911 ; 354471 ; 354473 ;
Abstract
A device for a camera having a manually operated flash assembly includes a sensing element made from a photochromic, metameric or other material which is capable of producing visible optical density changes, such as color changes, based on the level of incident light impinging on the element. According to the invention, a reference standard having a specific optical density is adjacently positioned relative to the sensing element so that the respective optical densities can be compared prior to image capture in order to guide the user whether or not to use the flash.