Complex Crystal Phosphor, Light Emitting Device, Surface Light Source Apparatus, Display Apparatus, and Lighting Device
First Claim
1. A complex crystal phosphor of an inorganic composition comprising an M element, an Al element, silicon, oxygen, and nitrogen,wherein the inorganic composition has particles at least two types of crystal phase, and the two types of crystal phase include a first crystal phase of a M2SiO4-yNx (0<
- x<
3. y=2x/3) crystal and a second crystal phase of a β
-sialon crystal,wherein M is at least one element selected from the group consisting of (Mg), calcium (Ca), strontium (Sr), and barium (Ba).
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Abstract
A complex crystal phosphor is an inorganic composition containing at least an M element, an Al element, silicon, oxygen, and nitrogen. The inorganic composition has particles having at least two types of crystal phase, and the at least two types of crystal phase include a first crystal phase which is the same as a M2SiO4 crystal and a second crystal phase as a β-sialon crystal. Here, M is at least one element selected from the group consisting of (Mg), calcium (Ca), strontium (Sr), and barium (Ba).
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Citations
37 Claims
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1. A complex crystal phosphor of an inorganic composition comprising an M element, an Al element, silicon, oxygen, and nitrogen,
wherein the inorganic composition has particles at least two types of crystal phase, and the two types of crystal phase include a first crystal phase of a M2SiO4-yNx (0< - x<
3. y=2x/3) crystal and a second crystal phase of a β
-sialon crystal,wherein M is at least one element selected from the group consisting of (Mg), calcium (Ca), strontium (Sr), and barium (Ba). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
- x<
Specification