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. 22, 2011
Filed:
Feb. 19, 2008
Yusuke Hirao, Sakai, JP;
Keiji Matsusaka, Osaka, JP;
Yasunari Fukuta, Sakai, JP;
Konica Minolta Opto, Inc., Hachioji-shi, JP;
Abstract
An imaging lens (LN) includes at least three lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes parallel flat lens substrates (LS) formed of different materials, and a lens (L). In the imaging lens (LN), the object side lens surface of a first lens (L) included in a first lens block (BK) is a surface protruding to the object side, the object side lens surface of a third lens (L) included in a second lens block (BK) is a surface recessed from the object side, and at least the object side lens surface of a fifth lens (L) or the object side lens surface of a sixth lens (L) included in a third lens block (BK) is aspherical.