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. 08, 2002
Filed:
Aug. 27, 1999
Applicant:
Inventor:
Yakov G. Soskind, Columbus, IN (US);
Assignee:
KSM Associates, Inc., Cincinnati, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/744 ;
U.S. Cl.
CPC ...
G02B 2/744 ;
Abstract
Optical systems employing stepped diffractive surfaces ( ) are provided. Ray tracing through such systems is performed using the grating equation to represent the stepped diffractive surface (SDS). In this way, the SDS can be used to correct a variety of monochromatic and chromatic aberrations by balancing the aberrations of the SDS against the aberrations of non-stepped optical surfaces in the system.