ILLUMINATION DEVICE

Light to be emitted from an emission surface of a light-guide plate fulfils a condition (1) Etotal/Em>2.0 and a condition (2) Etotal(20°,0°)=Etotal(20°,90°)>1.2. Here, average intensity of light to be emitted from the emission surface is em and total light intensity of the light to be emitted...

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Bibliographische Detailangaben
1. Verfasser:	KINOSHITA SEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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-PORTABLE LIGHTING DEVICES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	Light to be emitted from an emission surface of a light-guide plate fulfils a condition (1) Etotal/Em>2.0 and a condition (2) Etotal(20°,0°)=Etotal(20°,90°)>1.2. Here, average intensity of light to be emitted from the emission surface is em and total light intensity of the light to be emitted in a z-axis direction is etotal, the total light intensity etotal(20°,0°) of the light to be emitted is Pi(20°,0°)/ ω when an angle of the light to be emitted relative to a z-axis direction is 20° and an angle of the light to be emitted relative to an x-axis direction is 0°, and the total light intensity etotal(20°,90°) of the light to be emitted from the emission surface is Pi(20°,90°)/ ω when the angle of the light to be emitted relative to the z-axis direction is 20° and the angle of the light to be emitted relative to the x-axis direction is 90°.