Patent ID: 6451414
Filing Date: 2002-09-17
Classification: B32B,G02B,Y10S,Y10T

Abstract:
An optical body comprising:(a) a multilayer film having a reflecting band positioned to reflect infrared radiation of at least one polarization at an incident angle normal to the film, said reflecting band having a short wavelength bandedge &lgr;a0 and long wavelength bandedge &lgr;b0 at a normal incident angle, and a short wavelength bandedge &lgr;a&thgr; and long wavelength bandedge &lgr;b&thgr; at a maximum usage angle &thgr;, wherein &lgr;a&thgr; is less than &lgr;a0 and &lgr;a0 is selectively positioned at a wavelength greater than about 700 nm; and (b) at least one component which at least partially absorbs or reflects radiation in the wavelength region between &lgr;a&thgr; and &lgr;a0 at a normal angle of incidence.