WHITE LIGHT EMITTING DEVICE

PURPOSE: A white light emitting device is provided to obtain high color rendering properties and high luminous efficiency. CONSTITUTION: A light emitting device (14) emits light of a peak wavelength between 430 and 470 nm. An element sealing transparent layer (18) made of transparent resins is forme...

Full description

Saved in:
Bibliographic Details
Main Authors HIRAMATSU RYOSUKE, HATTORI YASUSHI, OKADA AOI, ISHIDA KUNIO, KATO MASAHIRO
Format Patent
LanguageEnglish
Korean
Published 23.09.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: A white light emitting device is provided to obtain high color rendering properties and high luminous efficiency. CONSTITUTION: A light emitting device (14) emits light of a peak wavelength between 430 and 470 nm. An element sealing transparent layer (18) made of transparent resins is formed on the light emitting device. A first fluorescent element (20) emits light of a first peak wavelength between 525 and 560 nm. A second fluorescent element (22) emits light of a second peak wavelength which is longer than the first peak wavelength. A third fluorescent element (24) emits light of a third peak wavelength between 620 and 750 nm. The third peak wavelength is longer than the second peak wavelength.
Bibliography:Application Number: KR20130020225