Adjustable luminaire for selectively controlling uplight/downlight ratio
AssigneeGE Lighting Solutions, LLC
InventorsKatalin Eszter Horvath, Mathew L Sommers, Sebastien Magnan
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Abstract
Provided is an adjustable lighting system, configured to emit light at any of various bi-directional light-emission ratios. The adjustable lighting system includes a light source, and a reflective component positioned adjacent the light source. The adjustable lighting system also includes a movable positioning apparatus connected to the light source or the reflective component and configured to, when moved, change a relative positioning between the light source and the reflective component.
Claims19
An adjustable lighting system, configured to emit light at any of various bi-directional light-emission ratios, comprising:
- a reflective component;
- a light source positioned adjacent the reflective component;
- and
- a movable positioning apparatus connected to the light source or the reflective component;
- wherein the movable positioning apparatus is configured to, when moved, change a relative positioning between the light source and the reflective component;
- wherein the adjustable lighting system further comprises a lightguide component having a first emitting surface and a second emitting surface opposite the first emitting surface, wherein the reflective component is positioned between the first and second emitting surfaces and the lightguide is positioned adjacent the light source and configured to, in operation of the adjustable lighting system, transmit received light out of the adjustable lighting system by way of the first emitting surface and the second emitting surface.
An adjustable lighting system, configured to emit light at any of various bi-directional light-emission ratios, comprising:
- a first lightguide having a first emitting surface opposite a first internal surface, and being configured to transmit light received at the first lightguide out of the adjustable lighting system by way of the upper emitting surface;
- a second lightguide having a second emitting surface opposite a second internal surface, and configured to transmit light received at the second lightguide out of the adjustable lighting system by way of the lower emitting surface;
- a light source;
- a reflective component positioned adjacent the light source and between the first and second internal surfaces to block light transmitting through the first lightguide from passing into the second lightguide and light transmitting through the second lightguide from passing into the first lightguide;
- and
- a movable positioning apparatus connected to the light source or the reflective component;
- wherein the movable positioning apparatus is configured to, when moved, change a relative positioning between the light source and the reflective component.
An adjustable lighting system, configured to emit light at any of various bi-directional light-emission ratios, comprising:
- a unitary lightguide body including a light-guide material, a first light-emitting surface opposite a second light-emitting surface, and a reflective material positioned between the first and second light-emitting surfaces;
- a light source arranged adjacent the single lightguide;
- and
- a movable positioning apparatus connected to the light source or the unitary lightguide body;
- wherein the movable positioning apparatus is configured to, when moved, change a relative positioning between the light source and the reflective component, to produce a different one of the various bi-directional light-emission ratios.
Dependencies are inferred from the claim text.