JPS6460687A - Preparation of phosphor - Google Patents
Preparation of phosphorInfo
- Publication number
- JPS6460687A JPS6460687A JP21694587A JP21694587A JPS6460687A JP S6460687 A JPS6460687 A JP S6460687A JP 21694587 A JP21694587 A JP 21694587A JP 21694587 A JP21694587 A JP 21694587A JP S6460687 A JPS6460687 A JP S6460687A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- mixture
- oxides
- starting material
- preparation
- 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.)
- Granted
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE:To improve the service life characteristics and initial luminous flux of a fluorescent lamp, by adding a specified amt. of gadolinium borate to a starting material mixture for a phosphor comprising yttrium oxide or lanthanum oxide activated with europium, and calcining the resulting mixture. CONSTITUTION:In preparation of a red light-emmisive phosphor of general formula: (Ln1-XEUX)2O3 (wherein Ln is at least one of Y and La; and 0.01<=x<=0.2), oxides or compds. capable of being converted into oxides by thermal decomposition are used in the form of a starting material mixture, to which 2.6-8.5wt.% of gadolinium borate is added to prepare a mixture, which is then fired.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21694587A JP2599399B2 (en) | 1987-08-31 | 1987-08-31 | Phosphor manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21694587A JP2599399B2 (en) | 1987-08-31 | 1987-08-31 | Phosphor manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6460687A true JPS6460687A (en) | 1989-03-07 |
JP2599399B2 JP2599399B2 (en) | 1997-04-09 |
Family
ID=16696392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21694587A Expired - Fee Related JP2599399B2 (en) | 1987-08-31 | 1987-08-31 | Phosphor manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2599399B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960022936A (en) * | 1994-12-30 | 1996-07-18 | 윤종용 | Red luminescent fluorescent composition |
-
1987
- 1987-08-31 JP JP21694587A patent/JP2599399B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960022936A (en) * | 1994-12-30 | 1996-07-18 | 윤종용 | Red luminescent fluorescent composition |
Also Published As
Publication number | Publication date |
---|---|
JP2599399B2 (en) | 1997-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55160078A (en) | Fluorescent substance and preparation of the same | |
JPS565883A (en) | Method of producing fluorescent material | |
KR870010606A (en) | Phosphor and Fluorescent Lamp Using Phosphor | |
GB1205659A (en) | Luminescent materials | |
JPS57115484A (en) | Fluorescent substance and its preparation | |
JPS57207678A (en) | Fluorescent lamp | |
JPS5723674A (en) | Fluorescent substance | |
JPS6460687A (en) | Preparation of phosphor | |
GB864343A (en) | Improvements in luminescent materials | |
GB1222859A (en) | Luminescent materials | |
JPS5751783A (en) | Red phosphor and fluorescent lamp | |
JPS5489985A (en) | Fluorescent substance | |
JPS55161883A (en) | Production of phosphor | |
JPS57137381A (en) | Fluorescent substance emitting red light | |
JPS5723676A (en) | Fluorescent substance | |
JPS5360386A (en) | Production of cerium-activated yttrium orthoaluminate fluorescent substance | |
JPS5657877A (en) | Fluorescent material | |
JPS5670085A (en) | Fluorescent lamp | |
JPS56155283A (en) | Fluorescent substance | |
JPS5790086A (en) | Phosphor | |
JPS5641292A (en) | Phosphor | |
JPS5552378A (en) | Preparation of fluorescent material | |
JPS646086A (en) | Fluorescent lamp | |
JPS56159277A (en) | Oxide fluorescent substance containing fluorine | |
Smets et al. | The Jahn-Teller effect in the excitation and emission spectra of Ba6Y2Al4O15: Sn2+ and Ba2YAlO5: Sn2+ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |