FREE FORM LIGHTING MODULE
First Claim
1. An illumination device comprising:
- a. a waveguide element comprising a first face, a second face, and a waveguide edge;
b. a LED light source, arranged to generate light source light, with optional collimating optics, wherein the LED light source with optional collimating optics is arranged to couple at least part of the light source light into the waveguide element via the waveguide edge of the waveguide element; and
wherein the first face comprises a plurality of structures arranged to couple at least part of the light out of the waveguide element via the second face to provide second face light;
wherein the illumination device further comprises a cavity, arranged to allow light to escape from the waveguide element into the cavity, and a reflector, arranged to reflect at least part of the light in the cavity in a direction away from the second face to provide first face light.
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Accused Products
Abstract
The invention provides an illumination device (1) comprising (a) a waveguide element (20) comprising a first face (21), a second face (22), and a waveguide edge (23), and (b) a LED light source (10), arranged to generate light source light (17), with optional collimating optics (11). The LED light source (10) with optional collimating optics (11) is arranged to couple at least part of the light source light (17) into the waveguide element (20) via the waveguide edge (23) of the waveguide element (20). The first face (21) comprises structures (51) arranged to couple at least part of the light out of the waveguide element (20) via the second face (22) to provide second face light (37). The illumination device (1) further comprises a cavity (80), arranged to allow light to escape from the waveguide element (20) into the cavity (80), and a reflector (81), arranged to reflect at least part of the light in the cavity (80) in a direction away from the second face (22) to provide first face light (47). Such an illumination device may allow lighting a room, for instance via the ceiling with uplight, and lighting a specific area in the room with downlight. Further, a relatively thin illumination device may be provided, which may for instance suspend from a ceiling.
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Citations
15 Claims
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1. An illumination device comprising:
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a. a waveguide element comprising a first face, a second face, and a waveguide edge; b. a LED light source, arranged to generate light source light, with optional collimating optics, wherein the LED light source with optional collimating optics is arranged to couple at least part of the light source light into the waveguide element via the waveguide edge of the waveguide element; and wherein the first face comprises a plurality of structures arranged to couple at least part of the light out of the waveguide element via the second face to provide second face light;
wherein the illumination device further comprises a cavity, arranged to allow light to escape from the waveguide element into the cavity, and a reflector, arranged to reflect at least part of the light in the cavity in a direction away from the second face to provide first face light.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification