Optical stack of laminated removable lenses for face...

A - Human Necessities – 42 – B

Patent

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A42B 3/22 (2006.01) A42B 3/26 (2006.01) B32B 7/06 (2006.01) B32B 7/12 (2006.01)

Patent

CA 2386043

A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive. The adhesive is uninterrupted. The lens and the adhesive have refraction mismatch of less than 0.2. A tab portion is part of each lens and acts as an aid in peeling away the outermost lens after contamination of the lens layer during racing conditions. The lens stack can be mounted to the posts on the face shield of a racing helmet or laminated directly to a windshield.

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