18894198. ß-SIALON FLUORESCENT MATERIAL AND LIGHT EMITTING DEVICE (NICHIA CORPORATION)
ß-SIALON FLUORESCENT MATERIAL AND LIGHT EMITTING DEVICE
Organization Name
Inventor(s)
Yuya Takahashi of Myozai-gun JP
Hiroyuki Watanabe of Itano-gun JP
ß-SIALON FLUORESCENT MATERIAL AND LIGHT EMITTING DEVICE
This abstract first appeared for US patent application 18894198 titled 'ß-SIALON FLUORESCENT MATERIAL AND LIGHT EMITTING DEVICE
Original Abstract Submitted
A β-SiAlON fluorescent material includes fluorescent material particles having a composition represented by the following formula (I), and a coating layer formed on the surface of the fluorescent material particles and having a refractive index smaller than that of the fluorescent material particles, wherein when the β-SiAlON fluorescent material is measured by inductively coupled plasma-atomic emission spectroscopy, an amount of the coating layer is 0.4% by mass or more relative to a total amount of the fluorescent material particles and the coating layer being 100% by mass: