Vehicle interior LED lighting system

  • US 7,195,381 B2
  • Filed: 01/22/2002
  • Issued: 03/27/2007
  • Est. Priority Date: 01/23/2001
  • Status: Expired due to Fees
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First Claim
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1. A unitary light module for illuminating an interior portion of a vehicle, the vehicle having a battery/ignition voltage, said unitary light module consisting of:

  • a housing having an inner surface forming a reflector and an outer surface having a plurality of heat dissipating fins;

    a single high-intensity power light emitting diode located inside said housing, said reflector at least one of directing and shaping light from said single high-intensity power light emitting diode toward a light output area of said housing;

    a lens covering said light output area of said housing, said lens at least one of directing and shaping light from said single high-intensity power light emitting diode toward an incident area of the vehicle; and

    a voltage conversion element adjacent said housing opposite said lens, said voltage conversion element including a DC step-down converter, said DC step-down converter adapted for reducing the battery/ignition voltage of the vehicle to less than 5 volts and increasing the current to at least 100 milliamps, and powering said single high-intensity power light emitting diode to deliver a luminous efficiency of at least 1 lumen/watt.

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