发明名称 |
Light emitting device using LED |
摘要 |
A light-emitting device which uses and LED having a light-emitting element being placed on a package substrate. The light-emitting element has a light-extracting surface. A fluorescent element which is formed by dispersing a fluorescent material in a transparent substance and is placed face to face with the light-extracting surface of the light emitting element and comprises a clearance gap in between. The light-emitting element generates light of a certain wavelength that emanates through the light-extracting surface into the fluorescent element where the wavelength is changed. The device further comprises an optical element which receives light from the light-emitting element through the fluorescent element and directs the light to the outside of the device.
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申请公布号 |
US7084435(B2) |
申请公布日期 |
2006.08.01 |
申请号 |
US20040483995 |
申请日期 |
2004.01.23 |
申请人 |
MATSUSHITA ELECTRIC WORKS, LTD. |
发明人 |
SUGIMOTO MASARU;YAMAGUCHI MASAO;HASHIMOTO TAKUMA;NISHIOKA KOJI;YOKOTANI RYOJI;KIMURA HIDEYOSHI;MURAKAMI TADASHI;SHIOHAMA EIJI |
分类号 |
H01L29/22;F21V29/02;H01L29/24;H01L33/50;H01L33/54;H01L33/58;H01L33/60 |
主分类号 |
H01L29/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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