Semi-finished blank for varifocal lens, varifocal lens, and varifocal eyeglasses

摘要

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.

主权项

1. A semi-finished blank for a varifocal lens, comprising:
a first substrate; a first transparent conductive film formed on a front face of said first substrate; a second substrate that is opposite to said first substrate; a second transparent conductive film formed on a back face of said second substrate; and a varifocal portion disposed between said front face of said first substrate and said back face of said second substrate; wherein at least one of said first transparent conductive film and said second transparent conductive film comprises a first region of transparent conductive film that includes an area opposite to said varifocal portion and a second region of transparent conductive film that is electrically insulated from said first region of transparent conductive film, and both the area of the first region of transparent conductive film opposite to said varifocal portion and the second region of transparent conductive film are a part of one of said first transparent conductive film and said second transparent conductive film.