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:
Nov. 03, 1992
Filed:
Aug. 07, 1991
Applicant:
Inventors:
Yuji Ihara, Kawasaki, JP;
Hiroshi Tanioka, Kashiwa, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359708 ; 359811 ; 359819 ; 359827 ;
Abstract
A compound aspherical lens comprising: a hard lens; a soft lens laminated to the hard lens in a direction of the optical axis; and a lens supporting surface formed around the effective diameter of the hard lens and exposed in the direction of the optical axis when the soft lens is laminated to the hard lens.