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US 11,454,828 B2Granted
Stabilized thin lens
AssigneeHOYA Optical Labs of America, Inc.
InventorsDavid Olund, Justin Dodge
Life of this patent
Estimating the term…
Abstract
A thin ophthalmic lens stabilized through incorporation of flange around all or a portion of a perimeter of the thin lens.
Claims5
A method for stabilizing an ophthalmic thin eyeglass lens comprising:
- stretching a sheet of polarizing film onto a base lens substrate;
- placing the sheet of polarizing film and the substrate in a mold to form a round, unfinished, thin eyeglass lens with a functional film molded thereto, the thin eyeglass lens having a cylindrical edge and a flange defining a perimeter extending radially outward from the cylindrical edge, the flange having a uniform thickness that is greater than a thickness of the cylindrical edge of the thin eyeglass lens;
- removing the thin eyeglass lens from the mold;
- and
- edging the thin eyeglass lens so as to remove the flange and shape the thin eyeglass lens to fit a desired eyeglass lens frame.
2 more elements
Dependencies are inferred from the claim text.