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:
Jun. 14, 1983
Filed:
Mar. 24, 1980
Harry P Brueggemann, San Marino, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A projection lens assembly is provided for use in a printed circuit board projection imaging system wherein a reduced image on a glass master is magnified and projected onto a photoresist coated circuit board positioned at a remote location by the assembly. The projection lens comprises eight elements having lens parameters such that the position of a hole in the glass master is projected over the entire 24.times.18 inch format of the PCB panel with minimum distortion and high optical resolution. An adjustment technique may be provided to permit adjustment of the distortion of the assembled lens without affecting the other performance parameters of the lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile