A flat or curved photochromic laminate structure and a plastic
photochromic lens blank can be produced in a simple and efficient manner
from relatively low-cost polymeric sheet materials. These laminates can
be used to provide goggles, face shields, windows, window coverings,
skylights, and optical lenses having efficient, uniform and high quality
photochromic properties. The use of a polyesterurethane as the binder for
the photochromic material has been found to improve the performance of
the photochromic material. There may be a desire to have a protective
exterior layer (e.g., an abrasion resistant layer) in combination with
the lens system, but that may be provided in various methods. In the case
of using the laminate in a goggle application, the laminate may be hard
coated on one or both outer surfaces with an abrasion resistant coating,
antireflective coating, and/or an anti-fog hard coating.