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US 7,093,935 B2Granted
Multifocal polarized sunglasses and lenses
OwnerStuart A. Parnellinventor
Life of this patent
Estimating the term…
Abstract
Polarized sunglasses and lenses, and methods related thereto, are provided that include multifocal segments and which have a total thickness of less than about 5 millimeters.
Claims15
A method of making a sunglasses lens, comprising:
- providing a bifocal segment;
- molding an outer lens layer around the bifocal segment;
- combining the outer lens layer with an inner lens layer and a polarizing layer to form a sunglasses lens blank, wherein the combined thickness of the outer lens layer, the inner lens layer, and the polarizing layer is less than 5 millimeters without grinding of any of the layers;
- and
- edging the sunglasses lens blank to fit within a sunglasses frame.
2 more elements
A process for making sunglasses, comprising:
- providing a pair of polarized lens blanks, wherein each of the polarized lens blanks includes a bifocal segment, and wherein each of the polarized lens blanks has a thickness of less than 5 millimeters without grinding;
- providing a sunglasses frame;
- edging the polarized lens blanks to fit within the sunglasses frame;
- and
- setting the edged polarized lens blanks in the sunglasses frame.
2 more elements
Dependencies are inferred from the claim text.