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Light source and technique for mounting light emitting diodes

  • US 5,475,241 A
  • Filed: 10/27/1993
  • Issued: 12/12/1995
  • Est. Priority Date: 08/20/1992
  • Status: Expired due to Fees
First Claim
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1. A light source having end faces parallel to a semiconductor junction and side faces normal to the junction comprising:

  • a substrate;

    a light emitting diode having a light emitting junction perpendicular to the substrate and having an electrically conductive layer at each end face of the light emitting diode which is parallel to the junction; and

    means for mounting the light emitting diode on the substrate with the junction perpendicular to the substrate and the electrically conductive layers in electrical contact with conductive areas on the substrate wherein at least one of the conductive layers on an end face of the light emitting diode comprises a metal pad covering less than the entire end face of the light emitting diode for emission of light through the end face and having an edge adjacent to a side face of the light emitting diode, the metal pad comprising a stripe extending between opposite side faces of the light emitting diode and perpendicular to the substrate.

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