LIGHT CONDENSING MEMBER

PROBLEM TO BE SOLVED: To provide a light condensing member improved in the efficiency to use light by increasing the brightness within a predetermined viewing angle and suppressing the large brightness drop in the areas outside the viewing angle. SOLUTION: The light condensing member has fine light...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OGURI HITOSHI, KANEHARA YUUKI
Format:	Patent
Sprache:	eng
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 PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a light condensing member improved in the efficiency to use light by increasing the brightness within a predetermined viewing angle and suppressing the large brightness drop in the areas outside the viewing angle. SOLUTION: The light condensing member has fine light transmissive hemispherical projections 11 regularly arranged on a light transmissive support 10 and the contact angle θ of the projection and the support is 10° or larger or preferably 70° or larger. Further, in the condensing member having the fine light transmissive hemispherical projections regularly arranged on the light transmissive support, the projections are formed in a manner that their refractive indexes become gradually smaller from the inside to the outside. COPYRIGHT: (C)2006,JPO&NCIPI