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US 10,472,566 B2Granted
Phosphor plate composition and phosphor plate for vehicle headlamp comprising same
AssigneeLG Innotek Co., Ltd.
InventorsJu Yeon Won, Won Jin Kim
Life of this patent
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Abstract
Examples of the present invention relate to a phosphor plate composition having a wide emission region while improving luminance. The composition comprises: yttrium aluminum garnet (YAG) or gadolinium yttrium aluminum garnet ((Gd,Y)AG) phosphor powders doped with any one dopant selected from cerium (Ce), gadolinium (Gd) and neodymium (Nd); and a sintering agent of any one selected from lithium fluoride (LiF), magnesium oxide (MgO) and spinel (MgAl2O4).
Claims7
A lighting apparatus comprising:
- a light source;
- and
- a phosphor plate provided on the light source,
- wherein the phosphor plate includes:
- a phosphor powder based on garnet and doped with a dopant;
- and
- a sintering agent consisting of spinel (MgAl2O4),
- wherein an amount of MgAl2O4 is about 0.02 to 0.1 wt % of the phosphor plate, and
- wherein the dopant is gadolinium (Gd).
6 more elements
A lighting apparatus comprising:
- a light source;
- and
- a phosphor plate provided on the light source,
- wherein the phosphor plate includes:
- a phosphor powder based on garnet and doped with a dopant;
- and
- a sintering agent consisting of spinel (MgAl2O4),
- wherein an amount of MgAl2O4 is about 0.02 to 0.1 wt % of the phosphor plate, and
- wherein the dopant is gadolinium (Gd).
6 more elements
Dependencies are inferred from the claim text.