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:
Mar. 17, 2015
Filed:
Aug. 30, 2013
Mitsui Chemicals, Inc., Tokyo, JP;
Kouji Sone, Ehime, JP;
Satoko Machida, Ehime, JP;
Shunsuke Nishihara, Ehime, JP;
Akihiro Muramatsu, Ehime, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
A semi-finished blank for a varifocal lens, as well as a varifocal lens and varifocal eyeglasses, have power consumption reduced and avoid a decrease in commercial value. A first substrate has a first transparent conductive film that is produced on the front face of this first substrate. A second substrate that is opposite the first substrate has a second transparent conductive film that is produced on the back face of this second substrate. A varifocal portion is disposed between the front face of the first substrate and the back face of the second substrate. The first transparent conductive film is separated by laser into a first region that includes a region that is opposite the varifocal portion, and a region other than this first region.