A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SUBSTRATE FOR MOUNTING LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING ELEMENT MODULE
There are provided a light-emitting element mounting substrate which exhibits high reflectivity, and a light-emitting module having high reliability and high luminance. A light-emitting element mounting substrate includes an alumina sintered body containing alumina crystal, zirconia crystal, and grain boundary phase, wherein an intensity ratio I t /I m between a peak intensity It of tetragonal zirconia crystal at 2¸ ranging from 30° to 30.5° and a peak intensity I m of monoclinic zirconia crystal at 2¸ ranging from 28° to 28.5° measured by X-ray diffractometer using Cu-K± radiation, is less than or equal to 35 excluding 0. Further, a light-emitting element module includes the light-emitting element mounting substrate, and a light-emitting element mounted thereon.
SUBSTRATE FOR MOUNTING LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING ELEMENT MODULE
There are provided a light-emitting element mounting substrate which exhibits high reflectivity, and a light-emitting module having high reliability and high luminance. A light-emitting element mounting substrate includes an alumina sintered body containing alumina crystal, zirconia crystal, and grain boundary phase, wherein an intensity ratio I t /I m between a peak intensity It of tetragonal zirconia crystal at 2¸ ranging from 30° to 30.5° and a peak intensity I m of monoclinic zirconia crystal at 2¸ ranging from 28° to 28.5° measured by X-ray diffractometer using Cu-K± radiation, is less than or equal to 35 excluding 0. Further, a light-emitting element module includes the light-emitting element mounting substrate, and a light-emitting element mounted thereon.
SUBSTRATE FOR MOUNTING LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING ELEMENT MODULE
TRÄGER ZUR MONTAGE EINES LICHTEMITTIERENDEN ELEMENTS UND MODUL MIT LICHTEMITTIERENDEN ELEMENTS
SUBSTRAT POUR LE MONTAGE D'UN ÉLÉMENT ÉLECTROLUMINESCENT ET MODULE D'ÉLÉMENTS ÉLECTROLUMINESCENTS
TOYODA SATOSHI (author) / TAKENOSHITA HIDEHIRO (author) / FURUTACHI KENICHI (author)
2019-10-09
Patent
Electronic Resource
English
LIGHT-EMITTING ELEMENT MOUNTING SUBSTRATE AND LIGHT-EMITTING ELEMENT MODULE
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