Illumination system combining diffuse homogeneous lighting with direct spot illumination

Illumination system combining diffuse homogeneous lighting with direct spot illumination

An illumination system, preferably for illumination in a car, comprising at least one plain or slightly curved, solid light guide ( 4 ) made of transparent material, said light guide receiving light from a light ( 2 ) source and being provided with means ( 5, 6 ) for extracting light from said light...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOELEN CHRISTOPH G.A, VERBRUGH STEFAN M, SCHUURMANS JELLE H, PFEFFER NICOLA B, JALINK CORNELIS J
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
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
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Beschreibung
Zusammenfassung:An illumination system, preferably for illumination in a car, comprising at least one plain or slightly curved, solid light guide ( 4 ) made of transparent material, said light guide receiving light from a light ( 2 ) source and being provided with means ( 5, 6 ) for extracting light from said light guide, the means for extracting light from said light guide have. Reflecting surfaces ( 7, 8, 9, 10 ) the slopes of which are varied as a function of the position of the extracting means in the light guide as well as the position of a reading plane, so as to direct the light flux to a desired reading plane position. Preferably the illumination system a laminated structure of light guide layers, said layers being formed of a light guide layer for diffuse homogeneous illumination ( 1 ) and at least one light guide layer ( 4 ) for spot illumination of a reading plane.