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. 02, 1993
Filed:
Jul. 22, 1991
John C Boutet, Rochester, NY (US);
Thomas E Kocher, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A laser film scanner scans film as it is translated in a substantially horizonally plane past a diffuse light collector. The light collector includes an elongated housing enclosing a collection cavity having a slot at its top through which light enters. The cavity has diffuse reflective surfaces to diffusely reflect light to a photodetector communicating with the cavity. Positioned opposite the slot is a slanted face from which light entering the cavity is directly reflected. The slanted face avoids streak artifacts in a detected image by permitting dirt particles falling through the slot to roll down to a lower region in the cavity. The slaned face may be formed from a removable insert of low adhesion fluorocarbon material to permit cleaning without disassembling the collector.