Multilayer optical bodies

Details Multilayer optical bodies Multilayer optical bodies

2005-05-03

2005-05-03

Epps, Georgia (Department: 2873)

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

C359S580000, C359S587000, C359S589000

Reexamination Certificate

active

06888677

ABSTRACT:
Optical bodies, comprising: a plurality of first optical layers comprising a first polymer composition that comprises (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units, and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130° C.; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. Also disclosed are optical bodies comprising: (a) a plurality of first optical layers, each first optical layer being oriented; and (b) a plurality of second optical layers, disposed in a repeating sequence with the plurality of first optical layers, comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. Methods of making the above-described optical bodies, and articles employing such optical bodies are also provided.

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