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:
Oct. 12, 1982
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:
Eocom Corporation, Irvin, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
346108 ; 358296 ;
Abstract
Laser engraving system suitable for use in the production of artwork for printed circuit boards. The system includes a massive base table to reduce vibration and thermally induced variations, and modulation of the writing beam is controlled by a reference signal generated by a non-linear reticle scanned concurrently with the writing beam to compensate for spherical aberration in the optical system. Modulation of the writing beam is further synchronized in accordance with the position of the carriage which holds the output medium on which an image is formed by the writing beam.