OPTICAL SHEET WITH LAMINATED DOUBLE-SIDED LIGHT GUIDE PLATE

PROBLEM TO BE SOLVED: To realize low-cost manufacture of an optical sheet having micro-patterns on both sides.SOLUTION: The optical sheet having micro-patterns on both sides is formed by: extruding a first resin 450a into the nip between a first pressure roller 478a and a first patterned roller 480a...

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Bibliographische Detailangaben
Hauptverfasser:	GREENER JEHUDA, MI XIANG-DONG, LEE JU-HYON, HERRON LAY, MICHAEL R LAUNDRY
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING 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 HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To realize low-cost manufacture of an optical sheet having micro-patterns on both sides.SOLUTION: The optical sheet having micro-patterns on both sides is formed by: extruding a first resin 450a into the nip between a first pressure roller 478a and a first patterned roller 480a to form a first layer having an unpatterned surface and a patterned surface, the patterned surface having a micro-pattern transferred from the first patterned roller; extruding a second resin 450b into the nip between a second pressure roller 478b and a second patterned roller 480b to form a second layer having an unpatterned surface and a patterned surface, the patterned surface having a micro-pattern transferred from the second patterned roller; and laminating the first layer and the second layer at their unpatterned surfaces.