Ehs Lens Philippines, Inc.

Daisuke Ogaya

Masaki Ihara

Kenichi Tonouchi

Akinori Yamamoto

Toshihiko Shimizu

There is provided a polarized plastic lens for spectacles configured to be thin having almost the same thickness as the thickness of a normal plastic lens for spectacles, and a method for manufacturing the polarized plastic lens for spectacles, the plastic lens including a first lens base material having an object-side surface; a second lens base material having an eyeball-side surface; and a polarized film provided between the first lens base material and the second lens base material so that a minimum value of a distance between the polarized film and the object-side surface is 0.3 mm or more and 0.7 mm or less.

Polarized plastic lens for spectacles and method for manufacturing polarized plastic lens for spectacles

The invention relates to a method of manufacturing a polarizing lens, including conducting curved surface processing to change a shape of a polarizing film into a shape of a curved surface, conducting heat treatment by heating polarizing film that has been processed into a curved surface to a heating temperature of equal to or higher than 105&#xb0; C. but less than 150&#xb0; C., assembling an upper mold, a lower mold, and a seal member to provide a casting mold having a cavity within which the polarizing film following heating treatment is positioned, upper and lower molds being positioned opposite each other to sandwich the polarizing film at a space therebetween, and seal member sealing space between the upper and lower molds, casting a curable composition into the cavity, curing curable composition to provide a polarizing lens within which a polarizing film is positioned, and separating polarizing lens thus provided from casting mold.

Growing community of inventors

Suwa, Japan

Daisuke Ogaya