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:
Jan. 21, 1992
Filed:
Mar. 22, 1990
Applicant:
Inventor:
James D Hill, Mt. Airy, MD (US);
Assignee:
Tandem Scanning Corporation, Reston, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359234 ;
Abstract
Improvements in optical scanning disks, and methods to maximize resolution and contrast of a viewed target object featuring a Nipkow type disk and methods to produce the disk which has a multitude of pinhole apertures located in a defined annular disk region where each pinhole is equidistantly spaced from its nearest neighboring holes.