Aliphatic thermoplastic poyurethane press-on lenses and...

G - Physics – 02 – B

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G02B 1/00 (2006.01) B02C 7/10 (2006.01) C08G 18/75 (2006.01) G02B 1/04 (2006.01) G02C 7/02 (2006.01) G02C 7/08 (2006.01) G02C 9/00 (2006.01)

Patent

CA 2177715

Self-stick or press-on magnifying or corrective optical lenses or optical elements (10, 20, 30) which are injection-molded from an aliphatic thermoplastic polyurethane may be securely but releasably secured by their inherent molecular surface-adhesion characteristics, to the surface of a sunglass or plano lens (12, 22, 32) by finger pressure alone to readily provide a magnifying or collective lens suitable for incorporation into the frame of a normal pair of sunglasses or plano eyeglasses (14, 24).

Cette invention se rapporte à des verres optiques ou à des éléments optiques grossissants ou correcteurs (10, 20, 30), autoadhésifs ou se fixant par pression, qui sont moulés par injection dans un polyuréthanne thermoplastique aliphatique et qui peuvent être fixés de façon détachable grâce à leurs propriétés moléculaires inhérentes d'adhérence en surface, sur la surface d'une paire de lunettes de soleil ou de lunettes à verres neutres (12, 22, 32) par simple pression des doigts, afin de fournir immmédiatement un verre grossissant ou correcteur propre à être incorporé dans la monture d'une paire normale de lunettes de soleil ou de lunettes à verres neutres (14, 24).

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