ANTI-DAZZLING OPTICAL LAMINATE

• Main Authors: IWATA, YUKIMITSU, KODAMA, TAKASHI, NISHIMURA, YOSHIHIRO, FURUI, GEN
• Format: Patent
• Language: English; French; Japanese
• Published: 21.02.2008
• Subjects: 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

Disclosed is an anti-dazzling laminate which has anti-dazzling properties and can realize excellent antiglare properties and black color reproduction (black color gradation rendering at low brightness). The anti-dazzling laminate is an optical laminate comprising a light transparent base material and an anti-dazzling layer provided onto the light transparent base material. The outermost surface of the anti-dazzling layer has a concavoconvex shape.The optical laminate satisfies the following requirements: an Ha value of more than 0% and less than 90%, an Hi value of more than 0% and less than 90%, and an Hi/Ha value of not less than 0.8 and less than 1.0 wherein Ha represents the overall haze value of the optical laminate; and Hi represents the internal haze value of the optical laminate. La présente invention concerne un stratifié optique antireflet qui est doté de propriétés antireflet et qui permet d'obtenir d'excellentes propriétés antiéblouissement et de reproduction de couleur noire (rendu de gradation de couleur noire à faible brillance). Le stratifié antireflet est un stratifié optique comprenant un matériau de base transparent à la lumière et une couche antireflet disposée sur ledit matériau. La surface extérieure de la couche antireflet a une forme concavo-convexe. Le stratifié optique satisfait les exigences suivantes : une valeur Ha comprise entre 0 et 90 %, une valeur Hi comprise entre 0 et 90 % et un rapport Hi/Ha compris entre 0,8 et 1,0, où Ha représente la valeur de trouble globale du stratifié optique et Hi représente la valeur de trouble interne du stratifié optique.