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:
May. 01, 1984
Filed:
Apr. 30, 1982
Applicant:
Inventors:
Richard A Spinelli, Rochester, NY (US);
Edwin F Glab, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 71 ; 350450 ; 354296 ;
Abstract
The invention discloses the use of a corrector element placed in an imaging system to selectively vignette energy emanating from the exit pupil of a lens as a function of the field angle of the lens. Several imaging systems are disclosed which illustrate the technique used in determining optimum design and location of the corrector elements.
Spinelli, Richard. (1984). Document imaging system with improved exposure uniformity at image plane (U.S. Patent No. 4445774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4445774
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile