LIGHT EXTRACTION DEVICE AND COLOR DISPLAY DEVICE

PROBLEM TO BE SOLVED: To obtain a light extraction device with a high extraction efficiency of light using an optical fiber as a light guide body, and a color display device with high light utilization efficiency and high color purity. SOLUTION: The light extraction device uses an optical fiber 1 as...

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Bibliographische Detailangaben
1. Verfasser:	TAKAHASHI KIMIYO
Format:	Patent
Sprache:	eng
Schlagworte:	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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING 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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a light extraction device with a high extraction efficiency of light using an optical fiber as a light guide body, and a color display device with high light utilization efficiency and high color purity. SOLUTION: The light extraction device uses an optical fiber 1 as a light guide body, and includes a core 2 which transmits light incident on an incidence part of the optical fiber 1, a clad 3 which is installed at the surrounding of the core 2 and reflects light at the interface with the core 2, and an end reflector plate 4 which is installed at an outgoing part. The core 2 is exposed from the clad 3 in a prescribed normal direction to the transmission direction of light. Further, the color display device uses this light extraction device and includes a backlight 6 in which a liquid crystal display element 7 and the light extraction device are aligned in a row, and the core 2 of the optical fiber 1 is exposed in the direction of the liquid crystal display element 7. COPYRIGHT: (C)2011,JPO&INPIT