LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To provide a light-emitting device for reducing variations in the color of generated light and reducing height by restraining height dimensions. SOLUTION: The light-emitting device includes an LED chip 10; a packaging substrate 20 where the LED chip 10 is packaged; a frame 40 f...

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Bibliographic Details
Main Authors URANO YOJI, KAMATA SAKUO, NISHIOKA YASUSHI
Format Patent
LanguageEnglish
Published 05.04.2007
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 for reducing variations in the color of generated light and reducing height by restraining height dimensions. SOLUTION: The light-emitting device includes an LED chip 10; a packaging substrate 20 where the LED chip 10 is packaged; a frame 40 for surrounding the LED chip 10 at the packaging surface side of the packaging substrate 20; a sealing section 50 that is formed by filling a transparent silicon resin to the inside of the frame, seals the LED chip 10 and bonding wires 14, 14, and is elastic; a Fresnel lens 60 arranged while being overlapped to the sealing section 50; and a cylindrical color conversion member 70 that is a molding in which a phosphor excited by light radiated from the LED chip and radiates light with a color differing from the luminescent color of the LED chip is formed with a transparent material, covers the Fresnel lens at the side of a light emission surface 60b of the Fresnel lens 60, and is arranged while an air layer 80 is formed between the light emission surface and the frame 40. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050272837