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. 22, 2005
Filed:
Feb. 10, 2003
Applicant:
Hirofumi Tsuchida, Kunitachi, JP;
Inventor:
Hirofumi Tsuchida, Kunitachi, JP;
Assignee:
Olympus Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B009/12 ;
U.S. Cl.
CPC ...
Abstract
A wide angle lens system comprises at least three lens element cemented together as a single lens unit and an object side part of the lens unit has a negative refractive power and a rear part of the lens unit has a positive refractive power.