JPS5445685A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS5445685A JPS5445685A JP10246378A JP10246378A JPS5445685A JP S5445685 A JPS5445685 A JP S5445685A JP 10246378 A JP10246378 A JP 10246378A JP 10246378 A JP10246378 A JP 10246378A JP S5445685 A JPS5445685 A JP S5445685A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent
- fluorscent
- fluorescent substance
- substance
- ultraviolet ray
- 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 provide a fluorescent lamp which emits a bluish green light at a high efficiency under the excitation by ultraviolet ray, vacuum ultraviolet ray, electron beam, or the like, having a fluorscent film comprising the conventional aluminate fluorscent substance activated by Eu2+ and M2+ and a fluorescent substance with a proper amount of B2O3 solved solidly.
CONSTITUTION: This fluorscent lamp has a fluorescent film comprising an aluminate fluorescent substance activated by Eu2+ and M2 as given in the formulaI. For a fluorescent substance as shown in this formula, for example, is available (Ba0.03, Mg0.06)0.3(Al0.95,B0.05)2O3: Eu2+, 0.05Mn2+. To obtain this fluorescent substance, for example, BaO, MgO, Al2O3, B2O3, Eu2O3, and MnO is separately measured to meet the requirement in a composition formula and mixed thoroughly with a ball mill or the like. Then, the mixture is filled into a heatproof vessel and baked several times at 1,200 to 1,700°C in the air or a reductive atmosphere. Without fail, the final baking is made in the reductive atmosphere to reduce Eu and Mn to bivalence. It is possible to improve the light emitting efficiency of the aforementioned fluorescent material by mixing a flux such as LiF and Nazf.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10246378A JPS5445685A (en) | 1978-08-23 | 1978-08-23 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10246378A JPS5445685A (en) | 1978-08-23 | 1978-08-23 | Fluorescent lamp |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12973276A Division JPS5354183A (en) | 1976-10-28 | 1976-10-28 | Fluorescent substance and fluorescent lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5445685A true JPS5445685A (en) | 1979-04-11 |
JPS578150B2 JPS578150B2 (en) | 1982-02-15 |
Family
ID=14328145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10246378A Granted JPS5445685A (en) | 1978-08-23 | 1978-08-23 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5445685A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04198390A (en) * | 1990-11-28 | 1992-07-17 | Tokyo Kagaku Kenkyusho:Kk | Barium-aluminate-based fluorescent substance and production thereof |
JP2008208325A (en) * | 2007-01-30 | 2008-09-11 | Nichia Chem Ind Ltd | Alkali earth metal aluminate phosphor and fluorescent lamp using it |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58150233U (en) * | 1982-03-31 | 1983-10-08 | 株式会社東海理化電機製作所 | lever device |
JPS58154533U (en) * | 1982-04-08 | 1983-10-15 | 株式会社東海理化電機製作所 | Vehicle wiper switch device |
-
1978
- 1978-08-23 JP JP10246378A patent/JPS5445685A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04198390A (en) * | 1990-11-28 | 1992-07-17 | Tokyo Kagaku Kenkyusho:Kk | Barium-aluminate-based fluorescent substance and production thereof |
JP2008208325A (en) * | 2007-01-30 | 2008-09-11 | Nichia Chem Ind Ltd | Alkali earth metal aluminate phosphor and fluorescent lamp using it |
Also Published As
Publication number | Publication date |
---|---|
JPS578150B2 (en) | 1982-02-15 |
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