ILLUMINATION DEVICE WITH WAVEGUIDE AND LEDS

The invention relates to an illumination device (1) comprising an optical waveguide (2) and a number of (connections for) light sources (3)-especially LEDs-positioned along the waveguide (3). This waveguide has a central axis (4) at a distance r to the surface of the waveguide, said surface comprisi...

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Hauptverfasser: BOONEKAMP, Erik, VISSENBERG, Michel Cornelis Josephus Marie, TUKKER, Teunis Willem, IJZERMAN, Willem Lubertus
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Sprache:eng ; fre ; ger
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creator BOONEKAMP, Erik
VISSENBERG, Michel Cornelis Josephus Marie
TUKKER, Teunis Willem
IJZERMAN, Willem Lubertus
description The invention relates to an illumination device (1) comprising an optical waveguide (2) and a number of (connections for) light sources (3)-especially LEDs-positioned along the waveguide (3). This waveguide has a central axis (4) at a distance r to the surface of the waveguide, said surface comprising a light entrance surface (6) on which the (connections for) light sources are positioned and a curved light exit surface (5), wherein, viewed along the circumference of the curved surface (5), the distance r to a first intersection (8) between the flat surface (6) and the curved surface (5), changes to a second distance of different value at the second intersection (9) between said surfaces. The invention also relates to a luminaire comprising such an illumination device (1). Due to the special design of the waveguide (2), the amount of reflections of light in the light sources is largely reduced and desired shaping of the exiting beam can be realized. The device can be further improved by the use of special features, like specially designed curved surfaces (5), reflective structures (13), channels (15) and torus-shaped waveguides.
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subjects BASIC ELECTRIC ELEMENTS
BLASTING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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
SEMICONDUCTOR DEVICES
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
title ILLUMINATION DEVICE WITH WAVEGUIDE AND LEDS
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