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:
Nov. 18, 1986
Filed:
Aug. 09, 1985
Kazufumi Kubota, Kanagawa, JP;
Kanji Tokuda, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A photographic printing apparatus for printing an image formed on a negative film on photographic paper includes a shutter disposed between the photographic paper and an enlarging lens. A reflective surface is provided on the surface of the shutter on the side thereof which is closer to the enlarging lens. A light receiver is disposed outside the optical path of exposure light in such a manner as to face the reflective surface. When the shutter is closed, the light receiver receives the light which forms an out-of-focus image at the reflective surface and is reflected therefrom. Accordingly, it is possible to measure an averaged density of the film image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile