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:
Sep. 19, 1989
Filed:
Mar. 07, 1988
Applicant:
Inventors:
Ronald J Straayer, South Windsor, CT (US);
Raymond E Timmons, Jr, Simpsonville, SC (US);
Assignee:
The Gerber Scientific Instrument Company, South Windsor, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356372 ; 356243 ;
Abstract
A novel method and apparatus for determining the accuracy of artwork produced from a laser direct imaging system employs a calibration substrate which has images of opposed, perpendicular scales and registration marks thereon. The overall system dimensional error is determined directly from substrate measurements, as is the magnitude of the mechanical and processing errors.