Polarized optical part using high impact polyurethane-based material

An optical-quality polarized part comprising:

• an optical construct comprising a homogeneous first layer and a homogeneous second layer, each such layer comprising a high impact polyurethane-based optical material, and each such layer having a bonding surface, wherein the first layer has sufficient structural integrity to maintain optical power;
• and
• a polarizer having a first side and an opposing second side, wherein the first and second sides of the polarizer are integrally bonded to the bonding surfaces of the respective first and second layers or the optical construct, across the entire bonding surface of such first layer, in prescribed places thereon;
• wherein the polarized part is free of any layer having sufficient structural integrity to maintain optical power bonded between the first layer of the optical construct and the polarizer.

An optical-quality polarized part comprising:

• an optical construct comprising a homogeneous first layer comprised of a high impact polyurethane-based optical material, wherein the first layer has a bonding surface and further has sufficient structural integrity to maintain optical power;
• and wherein the first layer is further comprised of a dye or colorant, a stabilizer, and/or a stiffener;
• and
• a polarizer comprising a polyethylene terephthalate film and having a first side and an opposing second side, wherein the first side of the polarizer is integrally bonded to the first layer of the optical construct, across the entire bonding surface of such first layer, in prescribed place thereon;
• wherein polarized part is free of any layer having sufficient structural integrity to maintain optical power bonded between the first layer of the optical construct and the polarizer.