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:
May. 05, 2009
Filed:
Feb. 24, 2006
Mitsuaki Matsumoto, Hirakata, JP;
Keiichi Kuramoto, Kadoma, JP;
Nobuhiko Hayashi, Osaka, JP;
Hitoshi Hirano, Nishinomiya, JP;
Mitsuaki Matsumoto, Hirakata, JP;
Keiichi Kuramoto, Kadoma, JP;
Nobuhiko Hayashi, Osaka, JP;
Hitoshi Hirano, Nishinomiya, JP;
Sanyo Electric Co., Ltd., Moriguchi, Osaka, JP;
Abstract
An optical element has a marker provided in the form of an optical fault at a predetermined location in the effective optical area thereof for positioning. The optical fault is a markerprovided at a specific location on the effective optical area of the optical elementpreferably in the form of a projection, a recess, a tinted portion, a different refraction portion, an air bubble, or a particle on or in the optical element. More preferably, the markeris located at or around the center of the optical elementand its area size is not greater than 0.4% of the effective optical area of the lens