LED WITH CERAMIC GREEN PHOSPHOR AND PROTECTED RED PHOSPHOR LAYER

LED WITH CERAMIC GREEN PHOSPHOR AND PROTECTED RED PHOSPHOR LAYER

A ceramic green wavelength conversion element (120) is coated with a red wavelength conversion material (330) and placed above a blue light emitting element (110) such that the ceramic element (120) is attached to the light emitting element (110), thereby providing an efficient thermal coupling from...

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Hauptverfasser: SCHRICKER APRIL DAWN, ZIJTVELD KARL ADRIAAN, MACKENS UWE, BASIN GRIGORIY, VOGELS JOOST PETER ANDRE, WEIJERS ALDEGONDA LUCIA, MAI KIM KEVIN
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Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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creator SCHRICKER APRIL DAWN
ZIJTVELD KARL ADRIAAN
MACKENS UWE
BASIN GRIGORIY
VOGELS JOOST PETER ANDRE
WEIJERS ALDEGONDA LUCIA
MAI KIM KEVIN
description A ceramic green wavelength conversion element (120) is coated with a red wavelength conversion material (330) and placed above a blue light emitting element (110) such that the ceramic element (120) is attached to the light emitting element (110), thereby providing an efficient thermal coupling from the red and green converters (330, 120) to the light emitting element (110) and its associated heat sink. To protect the red converter coating (330) from the effects of subsequent processes, a sacrificial clear coating (340) is created above the red converter element (330). This clear coating (340) may be provided as a discrete layer of clear material, or it may be produced by allowing the red converters to settle to the bottom of its suspension material, thereby forming a converter-free upper layer that can be subjected to the subsequent fabrication processes.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
title LED WITH CERAMIC GREEN PHOSPHOR AND PROTECTED RED PHOSPHOR LAYER
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