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. 13, 2015
Filed:
Jul. 17, 2013
Applicant:
Si-ware Systems, Cairo, EG;
Inventors:
Yasser M. Sabry, Cairo, EG;
Diaa Abdel Maged Khalil, Cairo, EG;
Bassam A. Saadany, Cairo, EG;
Tarik E. Bourouina, Joinville, FR;
Assignee:
SI-WARE SYSTEMS, Cairo, EG;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/10 (2006.01); G02B 5/10 (2006.01);
U.S. Cl.
CPC ...
G02B 26/10 (2013.01); G02B 5/10 (2013.01); G02B 26/101 (2013.01);
Abstract
Optical systems with aspherical optical elements are described. The aspherical optical elements have surfaces in which the in-plane radius of curvature spatially varies and the in-plane cross section surface profile is characterized in that the multiplication of the cosine of the incidence angle raised to a non-zero exponent by the in-plane radius of curvature varies less than twenty percent between any two points on the in-plane cross section surface profile.