LED-BASED LIGHTING DEVICES AND SYSTEMS BASED ON LIGHT PANELS HAVING TRANSPARENT WAVEGUIDES
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 24, 2015
filing date -
Apr 24, 2014
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Abandoned
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Abstract
Techniques, systems, and devices are disclosed for implementing a light window having LED light sources and a transparent waveguide to produce patterned illuminations and visual effects. In one aspect, a light window uses a light panel for producing an illumination or a visual effect, wherein the light panel includes: a transparent front panel; a transparent back panel; a side frame which supports the front panel and the back panel; multiple LEDs attached to an inner surface of the side frame; and a light guide positioned between the front panel and the back panel and configured to propagate light emitted by the LEDs, and to direct a portion of the light out of the light panel in a direction toward the front panel. One surface of the light guide is configured with either a refractive structure or a reflective structure for directing the portion of the light toward the front panel.
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