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:
Mar. 14, 2000
Filed:
Aug. 12, 1998
Applicant:
Inventor:
Josephus J Braat, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359642 ; 359719 ;
Abstract
Imaging conditions for the aperture rays of an axial pencil, for example Abbe's sine condition, determine how an object volume will be imaged in the image space of an optical lens system. The invention provides an optical lens element having an imaging condition which analytically should lead to the largest possible volume in an image space wherein possible aberrations (spherical aberration and coma) remain below a certain prescribed level.