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:
Jan. 20, 2015
Filed:
Feb. 11, 2014
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Mgc Filsheet Co., Ltd., Tokorozawa-shi, JP;
Terutaka Tokumaru, Tokyo, JP;
Katsunori Suzuki, Tokyo, JP;
Ken Shimomai, Tokyo, JP;
Masaki Yagoura, Tokyo, JP;
Kyousuke Nakamura, Tokyo, JP;
Akio Ohkubo, Tokyo, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
MGC Filsheet Co., Ltd., Tokorozawa-shi, JP;
Abstract
The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.