Patent ID: 7599592
Filing Date: 2009-10-06
Classification: B32B,C08J,G02B,Y10T

Abstract:
1. An optical film, comprising: a polymer matrix layer; and at least a first multilayered fiber embedded within the matrix layer, the first multilayered fiber comprising layers of at least a first and a second polymer material, layers of the first polymer material being disposed between layers of the second polymer material, at least one of the first and second polymer materials being birefringent; wherein the first multilayered fiber has a non-circularly symmetric cross-section having a longer dimension parallel to a first direction and a short dimension parallel to a second direction orthogonal to the first direction, the first direction being substantially parallel to the polymer matrix layer, and further wherein the optical film is operable to substantially transmit incident light polarized parallel to a transmission axis and substantially reflect incident light polarized parallel to a reflection axis.