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. 02, 2009
Filed:
Nov. 10, 2004
Hiroyuki Minakata, Hachioji, JP;
Masaru Ikemachi, Akishima, JP;
Kanato Adachi, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom optical system comprises a lens group having negative refracting power and a lens group having positive refracting power. At least one lens is formed by molding of a first lens blank () that provides a surface including at least an optical function surface after molding, and a second lens blank () that provides a surface other than said surface including at least an optical function surface after molding, wherein the first lens blank () and the second lens blank () are integrated into a one-piece lens ().