ILLUMINATION SYSTEM AND ILLUMINATION METHOD

The illumination system according to an embodiment of the invention has a plurality of white light sources satisfying the relationship -0.2 ¤ [(P(») × V(»))/(P(»max1) × V(»max1)) - (B(») × V(»))/(B(»max2) × V(»max2))] ¤ +0.2. where P(») is the emission spectrum of a white light source having a spe...

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Bibliographische Detailangaben
Hauptverfasser:	SHIRAKAWA, Yasuhiro, YAMAKAWA, Masahiko
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES SEMICONDUCTOR DEVICES SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	The illumination system according to an embodiment of the invention has a plurality of white light sources satisfying the relationship -0.2 ¤ [(P(») × V(»))/(P(»max1) × V(»max1)) - (B(») × V(»))/(B(»max2) × V(»max2))] ¤ +0.2. where P(») is the emission spectrum of a white light source having a specific correlated color temperature on a black body radiation trajectory, B(») is the emission spectrum of a black body radiation of the corresponding color temperature, V(») is the spectrum of the spectral lumin-ous efficiency, »max1 is the wavelength at which P(») × V(») is maximum, and »max2 is the wavelength at which B(») × V(») is maximum. Each of the white light sources is a while light source of different color temperature, and constituted in such a manner that the light from each of the white light sources is irradiated from a different direction onto an object to be illuminated.