To provide a semiconductor light emitting device capable of efficiently taking out emission light from a semiconductor light emitting element to the outside and improving light emission intensity.
The semiconductor light emitting device is provided with a light emitting element 14 for emitting the light emission output of strong directivity in a prescribed direction, a pedestal 11 for mounting the light emitting element, and a cap 15 disposed near the light emitting element on the pedestal. The cap comprises a cap main body 13 in a multilayer structure provided with an opening in the emitting direction of the light emission output of the light emitting element, and a light transmitting body 9 disposed so as to close the opening of the cap body in the state of being held between at least two layers of the cap main bodies, including a first cap main body 131 and a second cap main body 132 on the outside of the cap main bodies, and a gap part 12 is present at a position below the bottom surface of the light transmitting body between the two layers of the cap main bodies holding the light transmission body there between.
COPYRIGHT: (C)2009,JPO&INPIT
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Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto