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:
Jun. 19, 2012
Filed:
Oct. 28, 2010
Shinichi Mihara, Tama, JP;
Hisashi Goto, Tokyo, JP;
Masaki Arakawa, Hachioji, JP;
Toyoki Kon, Hachioji, JP;
Shinichi Mihara, Tama, JP;
Hisashi Goto, Tokyo, JP;
Masaki Arakawa, Hachioji, JP;
Toyoki Kon, Hachioji, JP;
Olympus Imaging Corp., Tokyo, JP;
Abstract
A lens component of the present invention is made by cementing a lens LA and a lens LB having a refracting power smaller than a refracting power of the lens LA, and satisfies predetermined conditional expressions. Moreover, in an image forming optical system of the present invention which includes a lens group B having a negative refracting power, a lens group C having a positive refracting power and which moves only toward an object side at the time of zooming from a wide angle end to a telephoto end, and one or two more lens groups additionally, one of the lens components of the present invention is used in the lens group B.