SHAPED PHOSPHOR TO REDUCE REPEATED REFLECTIONS

Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light up...

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Bibliographic Details
Main Authors MO, Qingwei, KUO, Mei-Ling, MAZUIR, Clarisse, LI, Lin, SHCHEKIN, Oleg Borisovich
Format Patent
LanguageEnglish
French
German
Published 11.03.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:Pre-formed wavelength conversion elements are attached to light emitting elements and are shaped to reduce repeated occurrences of total internal reflection. The sides of the shaped elements may be sloped or otherwise shaped so as to introduce a change in the angle of incidence of reflected light upon the light extraction surface of the wavelength conversion element. The pre-formed wavelength conversion elements may be configured to extend over an array of light emitting elements, with features between the light emitting elements that are shaped to reduce repeated occurrences of total internal reflection.
Bibliography:Application Number: EP20140780600