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1. (WO2003073520) LIGHT EMITTING DIODE LAMP

Pub. No.:    WO/2003/073520    International Application No.:    PCT/JP2003/001995
Publication Date: Fri Sep 05 01:59:59 CEST 2003 International Filing Date: Tue Feb 25 00:59:59 CET 2003
IPC: H01L 33/60
H01L 33/62
Applicants: ROHM CO.,LTD.

ISOKAWA, Shinji

YAMAGUCHI, Tomoji

Inventors: ISOKAWA, Shinji

YAMAGUCHI, Tomoji

Title: LIGHT EMITTING DIODE LAMP
Abstract:
A light emitting diode lamp comprising a lead terminal (2) provided with a cup (8) having an inner peripheral surface in the form of a conical light reflecting surface (8a), an LED chip (4) die-bonded to the bottom surface (8b) of the cup by a die-bonding agent (H), and a mold (6) of transparent synthetic resin for packaging the portion of the lead terminal that is in the cup, wherein the bottom surface (8b) of the cup is provided either with a recess (9) or with a raised portion (19), to which the LED chip (4) is die-bonded by the die-bonding agent(H), thereby improving optical focusability due to the conical light reflecting surface (8a).