| 摘要 |
An LED device can include LED chips mounted with high density and encapsulated with a resin. The device may not be substantially affected by fluctuations in thermal stress generated in the encapsulating resin and can have reduced fluctuations in characteristics such as output power and a color tone and can have a high level of reliability which can be maintained over a long period of time. The LED device can be manufactured by a method that includes mounting LED chips with high density on a metal stem having conductive-material-made leads that extend from the metal stem, welding a lens holder having a lens temporarily fixed thereto by a silicone resin to the stem so as to enclose the LED chips, and encapsulating the LED chips and bonding wires by injecting a silicone resin serving as an encapsulating resin having translucency and flexibility into a space defined by the stem, the holder, and the lens.
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