Silica glass member for wavelength conversion, and production method therefor
The invention provides a silica glass member for wavelength conversion for which environmental tolerance, heat resistance, durability and color rendering properties are high, which can be produced using a low-heat process, and which can efficiently convert wavelengths; and a production method theref...
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| creator | MORI TATSUYA SATO TATSUHIRO FUJINOKI AKIRA |
| description | The invention provides a silica glass member for wavelength conversion for which environmental tolerance, heat resistance, durability and color rendering properties are high, which can be produced using a low-heat process, and which can efficiently convert wavelengths; and a production method therefor. The silica glass member for wavelength conversion is formed by a silica glass substrate and a silica glass surface layer film formed on the surface of the substrate. The silica glass surface layer film is obtained by coating the surface of the silica glass substrate with a polysilazane-containing solution which contains phosphor particles the average particle diameter of which is 0.1 mu m-20 mu m and spherical silica fine particles which are hydrophobic and have an average particle size of 1nm-100nm, drying the coated substrate in the air, and carrying out heating of the same in a water-vapor atmosphere. In the polysilazane-containing solution, the ratio of phosphor particles to the total amount of the polysilazane and phosphor particles is 10:3-7 parts by mass, and the NH group concentration of the silica glass surface layer film is no more than 1000ppm. |
| format | Patent |
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The silica glass member for wavelength conversion is formed by a silica glass substrate and a silica glass surface layer film formed on the surface of the substrate. The silica glass surface layer film is obtained by coating the surface of the silica glass substrate with a polysilazane-containing solution which contains phosphor particles the average particle diameter of which is 0.1 mu m-20 mu m and spherical silica fine particles which are hydrophobic and have an average particle size of 1nm-100nm, drying the coated substrate in the air, and carrying out heating of the same in a water-vapor atmosphere. 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The silica glass member for wavelength conversion is formed by a silica glass substrate and a silica glass surface layer film formed on the surface of the substrate. The silica glass surface layer film is obtained by coating the surface of the silica glass substrate with a polysilazane-containing solution which contains phosphor particles the average particle diameter of which is 0.1 mu m-20 mu m and spherical silica fine particles which are hydrophobic and have an average particle size of 1nm-100nm, drying the coated substrate in the air, and carrying out heating of the same in a water-vapor atmosphere. In the polysilazane-containing solution, the ratio of phosphor particles to the total amount of the polysilazane and phosphor particles is 10:3-7 parts by mass, and the NH group concentration of the silica glass surface layer film is no more than 1000ppm.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DYES GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Silica glass member for wavelength conversion, and production method therefor |
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