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Solid State Bidirectional Light Sheet Having Vertical Orientation

  • US 20150362149A1
  • Filed: 03/16/2015
  • Published: 12/17/2015
  • Est. Priority Date: 11/01/2010
  • Status: Active Grant
First Claim
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1. A bidirectional lighting device for general illumination comprising:

  • a first plurality of non-packaged light emitting dies having electrodes;

    at least a first substrate and a second substrate sandwiching the light emitting dies and forming a light emitting structure having a first light emitting surface emitting light from the lighting device in a first direction and an opposing second light emitting surface emitting light from the lighting device in a second direction different from the first direction;

    conductors formed on at least one of the first substrate and second substrate electrically connected to the electrodes of the light emitting dies without wires for connecting the light emitting dies to a source of power; and

    wherein the first substrate and the second substrate form a bidirectional light sheet having opposing first and second light emitting surfaces, and wherein the light sheet is affixed proximate to a ceiling such that the first and second light emitting surfaces are not parallel to the ceiling, and wherein some light from the bidirectional light sheet is directed towards the ceiling and some light from the bidirectional light sheet is directed towards a floor.

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