Optical film

Details Optical film Optical film

1998-09-02

2000-09-12

Chen, Vivian

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428480, 428910, 359485, 359487, 359488, 359494, 359495, 359500, 359577, 359580, 359586, 359589, B32B 700, B32B 702, B32B 2708, B32B 2736

Patent

active

061175307

ABSTRACT:
An optical film comprising a plurality of layers wherein the refractive index difference between the layers along at least one in-plane axis is greater than the refractive index difference between the layers along an out-of-plane axis. The film has an average reflectivity of at least 60% for a predetermined bandwidth of light incident at 60.degree. from normal to the plane of the film, said light being polarized in a plane defined by the at least one in-plane axis and the out-of-plane axis.

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