Patent ID: 6080467
Filing Date: 2000-06-27
Classification: B32B,G02B,G02F,Y10S,Y10T

Abstract:
An optical device comprising a body having at least two opposing optical surfaces, at least a portion of each of the opposing optical surfaces comprising a film includinga first layer comprising a first polymeric material; anda second layer contiguous to the first layer, the second layer comprising a second polymeric material;wherein the absolute value of the difference in indices of refraction between the first and second layers is .DELTA.x, .DELTA.y, and .DELTA.z, respectively, for light polarized along first, second, and third mutually orthogonal axes, the third axis being orthogonal to the plane of the film, and further wherein .DELTA.x is greater than about 0.05 and .DELTA.z is less than about 0.05.