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. 01, 1999
Filed:
Aug. 26, 1997
Applicant:
Inventors:
Philip Charles Hobbs, Briarcliff Manor, NY (US);
Theodore G van Kessel, Millbrook, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-136 ; 264-17 ; 264-27 ;
Abstract
Method for correcting aberrations of an optical system and solving the problem of tolerance buildup. The method posits a desired specification limit for each of at least one optical characteristic of an optical element, and requires embossing at least a portion of a surface of the optical element for bringing the or each optical characteristic within its corresponding specification limit.