LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To provide a light-emitting device which can be easily designed compared to a case where a single light transmission body is shared among a sealing member, a lens and a phosphor. SOLUTION: The device is provided with a first light transmission body 3 made of a light transmissio...

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Bibliographic Details
Main Authors TANAKA KENICHIRO, KAMATA SAKUO
Format Patent
LanguageEnglish
Published 29.03.2007
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PROBLEM TO BE SOLVED: To provide a light-emitting device which can be easily designed compared to a case where a single light transmission body is shared among a sealing member, a lens and a phosphor. SOLUTION: The device is provided with a first light transmission body 3 made of a light transmission material and sealing an LED chip 2; a second light transmission body 4 for refracting a light emitted from the first light transmission body 3 to control light orientation; and a third light transmission body 5 consisting of a light transmission material containing a phosphor material for converting a light of the LED chip 2. Since a suitable material and shape can be independently selected for each of the first light transmission body 3 having a function of a sealing material, the second light transmission body 4 having a function of a lens and the third light transmission body 5 having a function of a phosphor, design is easy compared to a case where a single light transmission body is shared among a sealing member, a lens and a phosphor. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050262915