LUMINANCE PROFILE GENERATOR

PROBLEM TO BE SOLVED: To generate a prescribed luminance profile used for a backlight of a liquid crystal display and illumination, etc. SOLUTION: A mixing chamber comprises a first face, and a second surface facing the first face. At least two light emitting diodes are disposed along the first face...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	PFEFFER NICOLA, MARTYNOV YOURI, KONIJN HUUB, KUPPENS SIMON J M, WEST ROBERT S
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEMICONDUCTOR DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To generate a prescribed luminance profile used for a backlight of a liquid crystal display and illumination, etc. SOLUTION: A mixing chamber comprises a first face, and a second surface facing the first face. At least two light emitting diodes are disposed along the first face. At least a part of the first face is reflexible, and the second face comprises a reflecting area and a plurality of opening parts formed in the reflecting area. In a certain embodiment, the first face and the second face are separated by at least one side face. Light emitted from the light emitting diodes are reflected in the reflecting areas of the first face, the second face and the side face of the mixing chamber until it is emitted from the opening part of the second surface. In another embodiment, a structure body comprises a light emitting diode, a lens overlapped with the lens and a direction converting optical system overlapped with the light emitting diode. The direction converting optical system can contain, for example, a mirror surface or a diffusing reflector, a bulk-like or film-like diffuser, and a transparent material. COPYRIGHT: (C)2005,JPO&NCIPI