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1. (US20130099271) Light-emitting device
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Claims

1. A light-emitting device comprising:
an optically transparent first resin that is an elongated resin frame type including a side wall;
a metal lead that is arranged along a lengthwise direction within the resin frame;
a plurality of light-emitting diodes that are placed on the metal lead;
outer leads that protrude outwardly from both ends of the first resin and that are electrically connected to the light-emitting diodes; and
an optically transparent second resin that fills in the resin frame so as to cover the metal lead and the light-emitting diodes.
2. The light-emitting device of claim 1,
wherein the second resin contains a fluorescent material.
3. The light-emitting device of claim 2,
wherein the side wall is formed so as to be higher than an upper surface of the metal lead, and part of light emitted from the light-emitting diodes and entering the side wall and part of light emitted from the fluorescent material and entering the side wall are transmitted to the resin frame on a back side of a lower surface of the metal lead.
4. The light-emitting device of claim 3,
wherein the light-emitting diodes output blue light, and the fluorescent material receives the blue light to emit yellowish light.
5. The light-emitting device of claim 1,
wherein the light-emitting diodes are placed on the metal lead with an insulating adhesive material.
6. The light-emitting device of claim 1,
wherein lower surfaces of the light-emitting diodes are placed on the metal lead, and bonding wires are connected to upper surfaces of the light-emitting diodes.
7. A light-emitting device comprising:
a plurality of light-emitting elements that are fixed on a metal lead;
a first resin that includes a side wall and that is frame-shaped to surround the metal lead; and
a second resin that covers the light-emitting elements and the metal lead,
wherein the first resin is formed of a resin containing an optically transparent glass component,
the second resin is formed of an optically transparent silicon resin or epoxy resin and
outer leads for external connection are electrically connected to the light-emitting elements, and protrude from both ends of the first resin.
8. The light-emitting device of claim 7,
wherein the first resin is formed in a shape of an elongated resin frame type-,
the second resin contains a fluorescent material and
the side wall is formed so as to be higher than an upper surface of the metal lead, and part of light emitted from the light-emitting elements and entering the side wall and part of light emitted from the fluorescent material and entering the side wall are transmitted to the resin frame on a back side of a lower surface of the metal lead.
9. The light-emitting device of claim 7,
wherein the light-emitting elements are fixed on the metal lead with an insulating adhesive material.
10. The light-emitting device of claim 7,
wherein lower surfaces of the light-emitting elements are fixed on the metal lead, and bonding wires are connected to upper surfaces of the light-emitting elements.