Back to results
US 2024/0393667 A1Published application
Phosphor, wavelength conversion device, illumination device, and projector
AssigneeSeiko Epson Corporation
InventorsKengo KANO, Soma TODA
Life of this patent
Estimating the term…
Abstract
A phosphor has a phosphor body including a phosphor phase formed of A3B5O12:Ce having a garnet structure, a matrix phase having a refractive index higher than a refractive index of the phosphor phase, and a crystal phase formed of YAlO3 having a perovskite structure. A content of the crystal phase is more than 0 vol % and is equal to or less than 7.0 vol % in a volume ratio with respect to the phosphor body. A is at least one selected from a group including Lu, Gd, Tb, Ga, and Y, and B is Al.
Claims13
A phosphor comprising a phosphor body including:
- a phosphor phase formed of A3B5O12:Ce having a garnet structure;
- a matrix phase having a refractive index higher than a refractive index of the phosphor phase;
- and
- a crystal phase formed of YAlO3 having a perovskite structure, wherein
- a content of the crystal phase is more than 0 vol % and is equal to or less than 7.0 vol % in a volume ratio with respect to the phosphor body,
- A is at least one selected from a group including Lu, Gd, Tb, Ga, and Y, and B is Al.
3 more elements
Dependencies are inferred from the claim text.