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:
Dec. 20, 1983
Filed:
Mar. 19, 1981
Applicant:
Inventors:
Don B Neumann, Laguna Beach, CA (US);
Lyle K Norton, Santa Ana, CA (US);
Eric V Olson, Long Beach, CA (US);
Assignee:
American Hoechst Corporation, Somerville, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; H04N / ; G03B / ;
U.S. Cl.
CPC ...
346108 ; 354-4 ; 358296 ; 428901 ;
Abstract
Laser imaging system for imaging printed circuit artwork on an output medium such as a photosensitive film, a glass plate or a printed circuit board. The laser beam scans the output medium and is modulated in accordance with the image to be formed. A correction signal is applied to the modulator to maintain substantially uniform exposure across the output medium notwithstanding variations in the velocity of the beam.