BACK LIGHT FOR PANEL

PURPOSE: To obtain a large and uniform light emission part in comparison with the area of the light emitting surface side of a light transmission body by using the light transmission plate provided with a projection part and densely forming the light diffusion elements on the surface of the light tr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INAGAKI YUKIO, YOSHIDA NAOKI
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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS 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 TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To obtain a large and uniform light emission part in comparison with the area of the light emitting surface side of a light transmission body by using the light transmission plate provided with a projection part and densely forming the light diffusion elements on the surface of the light transmission plate close to a projection part in comparison with the vicinity of the periphery thereof. CONSTITUTION: At least one side of the side end parts of the light transmission plate 1 consisting of a light transmitting material is provided with a linear light source 4 near the plate 1. Besides, the light diffusion elements having a function diffusing the light are formed on one surface of the plate 1 so that the function thereof becomes larger as they are more distant from the light source 4. The light transmission plate 1 provided with one or more projection parts 7 is used and the light diffusion elements of the surface of the plate 1 set near the projection part 7 are densely formed at least in comparison with the vicinity of the periphery thereof. If is preferable that the area of a part(range 11) where the light diffusion elements are densely formed is appoximately made equivalent to 0.5-5 times as large as the area of one surface of the projection part 7. Besides, it is preferable that a degree for densely forming them is larger than the density of the vicinity of the periphery and within the range of 1.5 times as large as the density thereof.