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:
Feb. 12, 1991
Filed:
Aug. 21, 1989
Applicant:
Inventors:
William T Goosey, Jr, Fairport, NY (US);
Lee R Estelle, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
350471 ;
Abstract
A disclosed lens system is an atypical Gaussian-type lens comprised of two lens groups located at opposite sides of an aperture stop. Each of the groups is comprised of a doublet and a singlet. The doublets and singlets are located in sequential asymmetry with respect to the aperture stop. The front group has a cemented doublet as its foremost object-side lens component. This doublet consists of a lens element of negative power followed by a lens element of a positive power.