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Light source device using led, and method of producing same

  • US 20030189830A1
  • Filed: 04/14/2003
  • Published: 10/09/2003
  • Est. Priority Date: 04/12/2001
  • Status: Active Grant
First Claim
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1. (amended) A light source apparatus for emitting light from an LED chip (2), comprising:

  • a radiator plate (3) having thermally conductive properties;

    an insulating member (4) provided on at least one side of the radiator plate (3) and having a through hole (5, 5

    , 6) provided in the side thereof facing the radiator plate (3);

    the LED chip (2) mounted on and thermally coupled to an exposed portion of the radiator plate (3) facing the through hole (5, 5

    , 6);

    a wiring pattern (8) provided on the insulating member (4) and electrically isolated by the insulating member (4) from the radiator plate (3);

    connecting members (9, 21) electrically connecting between the wiring pattern (8) and the electrodes of the LED chip (2); and

    a sealing material (10, 10

    ) filled in the through hole (5, 5

    , 6) for entirely encapsulating the LED chip (2) and the connecting members (9, 21), wherein the portions of the wiring pattern (8) electrically connected by the connecting members (9, 21) to the LED chip (2) are located in the through hole (6) and held closer to the radiator plate (3) provided side than the other side of the insulating member (4) where the radiator plate (3) is not provided.

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