METHOD FOR MAKING AN OPTICAL FILM

AN OPTICAL FILM (10) IS PROVIDED WHICH COMPRISES A DISPERSE PHASE (14) OF POLYMERIC PARTICLES DISPOSED WITHIN A CONTINUOUS BIREFRINGENT MATRIX. THE FILM IS ORIENTED, TYPICALLY BY STRETCHING, IN ONE OR MORE DIRECTIONS. THE SIZE AND SHAPE OF THE DISPERSE (14) PHASE PARTICLES, THE VOLUME FRACTION OF TH...

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Hauptverfasser:	ANDREW JOHN OUDERKIRK, MICHAEL FRANCIS WEBER, CARL ARTHUR STOVER, ARTHUR LEWIS KOTZ, BISWAROOP MAJUMDAR, LOCKWOOD WILLIAM CARLSON, RICHARD CHARLES ALLEN, TIMOTHY JOSEPH NEVITT
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Zusammenfassung:	AN OPTICAL FILM (10) IS PROVIDED WHICH COMPRISES A DISPERSE PHASE (14) OF POLYMERIC PARTICLES DISPOSED WITHIN A CONTINUOUS BIREFRINGENT MATRIX. THE FILM IS ORIENTED, TYPICALLY BY STRETCHING, IN ONE OR MORE DIRECTIONS. THE SIZE AND SHAPE OF THE DISPERSE (14) PHASE PARTICLES, THE VOLUME FRACTION OF THE DISPERSE PHASE (14), THE FILM THICKNESS, AND THE AMOUNT OF ORIENTATION ARE CHOSEN TO ATTAIN A DESIRED DEGREE OF DIFFUSE REFLECTION AND TOTAL TRANSMISSION OF ELECTROMAGNETIC RADIATION OF A DESIRED WAVELENGTH IN THE RESULTING FILM.(FIG 1)