UV solid light source of inorganic powder
AssigneeWei-Hung Lo
InventorsSoshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
Life of this patent
Estimating the term…
Abstract
An inorganic powder uses a UV solid light source applied for the UV LEDs, in which an inorganic powder is based on the inorganic powder of n-silicate group II elements, and its ingredients have valence 2 ions, such as Eu+2, Sm+2, Yb+2 and Dy+2, valence 3 ions Ce+3, Tb+3 and/or Eu+3. The chemical formula of the components is Me+21-xLn+32-ySi2O8:TR+2x:TR+3y, and x=0.0-0.2, y=0.0-0.1. A main structure thereof is a hexagonal crystal structure. When the indium gallium nitride and gallium nitride based allomorphous semiconductor short wave UV light is used under conditions of excitement, the multiple band white light can be obtained.
Claims10
An inorganic powder for a UV (ultraviolet) solid light source for UV LEDs (ultraviolet light emitting diodes), the construction ingredients' chemical formula is
- Me+21-xLn+32-ySi2O8:TR+2x:TR+3y,
- wherein:
- Me+2=(wherein Mg+2, Ca+2, Sr+2, Ba+2, at least one or more);
- TR+2=(wherein Sm+2, Yb+2, Eu+2, Dy+2, at least one or more);
- TR+3=(wherein Tb+3, Ce+3, Eu+3, Dy+3, at least one or more);
- Ln+3=(wherein Y+3, La+3, Gd+3, Sc+3, Lu+3, at least one or more) and x=0.0-0.2, y=0.0-0.1;
- wherein a major configuration of an allomorphous surface of the solid light source is a hexagonal crystal structure, guaranteeing a solid light source allomorphous short wave, under UV light excitement, obtainment of multiple band white light.
An inorganic powder for a UV (ultraviolet) solid light source for UV LEDs (ultraviolet light emitting diodes), the construction ingredients' chemical formula is
- Me+21−xLn+32−ySi2O8:TR+2x:TR+31−y,
- wherein:
- Me+2=(at least one or more selected from Mg+2, Ca+2, Sr+2 and Ba+2, wherein 0≦Mg≦0.2, 0.4≦Ca≦0.8;
- 0.2≦Sr≦0.4, and 0.2≦Ba≦0.4);
- TR+2=(wherein Sm+2, Yb+2, Eu+2, Dy+2, at least one or more);
- TR+3=(wherein Tb+3, Ce+3, Eu+3, Dy+3, at least one or more);
- Ln+3=(wherein Y+3, La+3, Gd+3, Sc+3, Lu+3, at least one or more), and x=0.000-0.2, y=0.000-0.1.
An inorganic powder for a UV (ultraviolet) solid light source for UV LEDs (ultraviolet light emitting diodes), the construction ingredients' chemical formula is
- Me+21-xLn+32-ySi2O8:TR+2x:TR+31-y
- wherein:
- Me+2=(one or more selected from Mg+2, Ca+2, Sr+2 and Ba+2, wherein 0≦Mg≦0.2, 0.4≦Ca≦0.8;
- 0.2≦Sr≦0.4, and 0.2≦Ba≦0.4);
- TR+2=(wherein Sm+2, Yb+2, Eu+2, Dy+2, at least one or more);
- TR+3=(wherein Tb+3, Ce+3, Eu+3, Dy+3, at least one or more);
- Ln+3=(one or more selected from Y+3, La+3, Gd+3, Sc+3 and Lu+3, wherein 0.5≦Y≦1.6;
- 1≦La≦0.4;
- 2≦Gd≦0.4;
- 1≦Sc≦0.2;
- and 0.1≦Lu≦0.2), and x=0.000-0.2, y=0.000-0.1.
Dependencies are inferred from the claim text.