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Battery-powered flashing superluminescent light emitting diode safety warning light

  • US 5,313,187 A
  • Filed: 09/06/1990
  • Issued: 05/17/1994
  • Est. Priority Date: 10/11/1989
  • Status: Expired due to Term
First Claim
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1. A battery-powered flashing superluminescent light emitting diode safety-warning light, comprising:

  • at least one superluminescent light emitting diode;

    battery means for supplying direct current; and

    drive means operably connected with said at least one superluminescent light emitting diode and with said battery means for driving said at least one superluminescent light emitting diode with a drive signal Vd consisting of pulses of direct current at a frequency in the range of 1Hz to 12Hz and a pulse duty cycle in the range of 5% to 10%.

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