JPS56155283A - Fluorescent substance - Google Patents
Fluorescent substanceInfo
- Publication number
- JPS56155283A JPS56155283A JP5776580A JP5776580A JPS56155283A JP S56155283 A JPS56155283 A JP S56155283A JP 5776580 A JP5776580 A JP 5776580A JP 5776580 A JP5776580 A JP 5776580A JP S56155283 A JPS56155283 A JP S56155283A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- rare earth
- irradiation
- obtd
- element selected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: A fluorescent substance capable of efficiently emitting green light by the irradiation of UV widely ranging in wave lengths and stable to the irradiation of high-density UV, which is obtd. by activating a matrix consisting of a rare earth silicate with cerium and terbium.
CONSTITUTION: Specified amounts of raw materials such as an oxide of at least one rare earth element selected from Y, La, Gd and Lu, SiO2, CeO2 and Tb4O7 are mixed and calcined in a weakly reducing atmosphere at about 1,300W1,350°, to obtain the purpose fluorescent substance of the formula (wherein Ln is at least one rare earth element selected from Y, La, Gd and Lu; 3×10-5≤x<1×10-3, 3× 10-2≤y≤3×10-1, 0.8≤z≤2.2). The fluorescent substance obtd., having excited spectral peaks both near 2,537Å and 3,650Å, is suitable for use in a fluorescent lamp for an electrostatic copier using greeen luminous ray as the light source, for lighting using the three primary colores and for others.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5776580A JPS56155283A (en) | 1980-05-02 | 1980-05-02 | Fluorescent substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5776580A JPS56155283A (en) | 1980-05-02 | 1980-05-02 | Fluorescent substance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56155283A true JPS56155283A (en) | 1981-12-01 |
Family
ID=13064965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5776580A Pending JPS56155283A (en) | 1980-05-02 | 1980-05-02 | Fluorescent substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56155283A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4798768A (en) * | 1986-10-08 | 1989-01-17 | U.S. Philips Corporation | Luminescent alumino-silicate and/or alumino-borate glass comprising lanthanum and/or gadolinium and luminescent screen provided with such a glass |
JP2003082346A (en) * | 2001-09-13 | 2003-03-19 | Hitachi Chem Co Ltd | Phosphor composition |
WO2003083010A1 (en) * | 2002-03-28 | 2003-10-09 | Hitachi Chemical Co.,Ltd. | Phosphor and phosphor composition containing the same |
US7329370B2 (en) | 2003-10-22 | 2008-02-12 | Korea Advanced Institute Of Science And Technology | Transparent polycrystalline ceramic scintillators and methods of preparing the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127384A (en) * | 1977-04-13 | 1978-11-07 | Toshiba Corp | Fluorescent substance |
JPS565883A (en) * | 1979-06-29 | 1981-01-21 | Dainippon Toryo Co Ltd | Method of producing fluorescent material |
-
1980
- 1980-05-02 JP JP5776580A patent/JPS56155283A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127384A (en) * | 1977-04-13 | 1978-11-07 | Toshiba Corp | Fluorescent substance |
JPS565883A (en) * | 1979-06-29 | 1981-01-21 | Dainippon Toryo Co Ltd | Method of producing fluorescent material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4798768A (en) * | 1986-10-08 | 1989-01-17 | U.S. Philips Corporation | Luminescent alumino-silicate and/or alumino-borate glass comprising lanthanum and/or gadolinium and luminescent screen provided with such a glass |
JP2003082346A (en) * | 2001-09-13 | 2003-03-19 | Hitachi Chem Co Ltd | Phosphor composition |
WO2003083010A1 (en) * | 2002-03-28 | 2003-10-09 | Hitachi Chemical Co.,Ltd. | Phosphor and phosphor composition containing the same |
US7122129B2 (en) | 2002-03-28 | 2006-10-17 | Hitachi Chemical Co., Ltd. | Fluorescent substance and fluorescent composition containing the same |
US7329370B2 (en) | 2003-10-22 | 2008-02-12 | Korea Advanced Institute Of Science And Technology | Transparent polycrystalline ceramic scintillators and methods of preparing the same |
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