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Light tube and power supply circuit

DC
  • US 8,382,327 B2
  • Filed: 12/10/2010
  • Issued: 02/26/2013
  • Est. Priority Date: 02/11/2000
  • Status: Expired due to Term
First Claim
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1. A light device for illumination by a power supply circuit comprising:

  • a bulb portion,a pair of end caps disposed at opposite ends of the bulb portion, the pair of end caps including a first end cap disposed at one end of the bulb portion, and a second end cap disposed at an end of bulb portion opposite the first end cap, wherein the bulb portion and the pair of end caps are dimensioned to be mounted in a flourescent light tube socket; and

    a plurality of light emitting diodes disposed inside the bulb portion along one surface of a circuit board extending between the first end cap and the second end cap for illuminating in response to electrical current to be received from the power supply circuit;

    wherein each of the plurality of light emitting diodes is mounted with respect to surface of the circuit board to establish a radiation pattern of light emitted from the bulb portion; and

    wherein the arrangement of the circuit board and the bulb portion is such that substantially the entire light output of the light device is emitted away from the one surface and is confined to an included angle by sidewalls extending to a height above the one surface on opposing sides of the plurality of light emitting diodes between the first end cap and the second end cap.

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