Multilayer lens particularly for sunglasses

Details Multilayer lens particularly for sunglasses Multilayer lens particularly for sunglasses

1994-07-18

1997-09-16

Mai, Huy

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

351 45, 2432, 2435, G02C 710, G02C 716, A61F 902

Patent

active

056686188

ABSTRACT:
Multilayer lens particularly usable for sunglasses, having a main layer made of polycarbonate, cellulose acetate, or similar materials. A mirror reflecting layer is possibly coupled to the main layer or deposited thereon in vacuum by sublimation of appropriate substances, with the optional interposition of a layer of paint. The multilayer lens furthermore includes an outer layer that partially affects the outer surface of the lens. The lens may also include an inner antifogging layer that does not absorb moisture. This multilayer lens allows optimum vision to the user, eliminating or attenuating spurious incident rays at the lateral ends of the lens.

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