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. 27, 1990
Filed:
Mar. 23, 1989
Applicant:
Inventor:
Brent D Larson, Bellbrook, OH (US);
Assignee:
The Mead Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
355 70 ; 355 71 ;
Abstract
An original document exposure device utilizes a bump exposure to control contrast by reducing the contrast in a reproduction image of the original document. The bump exposure is achieved by covering a portion of the field of view of the focusing system of an exposure lamp with a diffuse reflector. A portion of the exposure light is thus diffusely reflected into the focusing system and onto the photosensitive media. The degree of bump achieved is controlled by position adjustment of the reflector.