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:
Sep. 21, 2010
Filed:
Feb. 06, 2007
Applicant:
Kimihiko Nishioka, Hachioji, JP;
Inventor:
Kimihiko Nishioka, Hachioji, JP;
Assignee:
Olympus Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium having a positive refractive index. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens. Moreover, a lens system includes a first lens which is formed of a medium exhibiting negative refraction and a second lens which is formed of a medium exhibiting negative refraction. Abbe's number for a material which forms the first lens differs from Abbe's number for a material which forms the second lens.