CURVED SIDED CONE STRUCTURES FOR CONTROLLING GAIN AND VIEWING ANGLE IN OPTICAL FILM

A method of making an optical film includes the steps of making a substrate having a first major surface and a second major surface opposite the first surface and forming a plurality of curved sided cone structures on the first surface. Each of the curved sided cone structures include a base located...

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Bibliographische Detailangaben
Hauptverfasser:	HOYLE, CHARLES D, KEYES, MICHAEL P, BAY, RANDY S, EHNES, DALE L, EPSTEIN, KENNETH A, HEBRINK, TIMOTHY J, HOFFEND, THOMAS R., JR, CORRIGAN, THOMAS R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of making an optical film includes the steps of making a substrate having a first major surface and a second major surface opposite the first surface and forming a plurality of curved sided cone structures on the first surface. Each of the curved sided cone structures include a base located on the first surface, a vertex, and a curved side formed from an arc extending between the base and the vertex. The optical gain and viewing angle for the film can be controlled by adjusting angles representing a shape of each curved sided cone structure at its vertex and base. L'invention concerne un procédé de fabrication d'une pellicule optique consistant à fabriquer un substrat comportant une première surface principale et une seconde surface principale opposée à la première surface et à former une pluralité de structures de cônes aux côtés incurvés sur la première surface. Chacune des structures de cônes aux côtés incurvés comprennent une base située sur la première surface, un sommet, et un côté incurvé formé depuis un arc s'étendant entre la base et le sommet. Le gain optique et l'angle de vue pour la pellicule peuvent être contrôlés en ajustant les angles représentant une forme de chaque structure de cône aux côtés incurvés à son sommet et à sa base.