JPS57128781A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS57128781A JPS57128781A JP1411681A JP1411681A JPS57128781A JP S57128781 A JPS57128781 A JP S57128781A JP 1411681 A JP1411681 A JP 1411681A JP 1411681 A JP1411681 A JP 1411681A JP S57128781 A JPS57128781 A JP S57128781A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- activated
- fluorescent
- blue
- lamp
- 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)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE: A fluorescent lamp having high lamp efficiency and coloring properties, obtained by forming a fluorescent substance layer comprising respectively specific fluorescent substance of yttrium oxide activated by Eu, fluorescent substance of bivalent metal borate activated by Ce and Tb, and blue fluorescent substance in the inner face of a glass tube.
CONSTITUTION: A fluorescent substance layer comprising (A) a fluorescent substance of yttrium oxide activated by Eu having an Eu concentration of 0.04W0.08atom based on 1g Y atom, (B) a fluorescent substance of bivalent metal borate activated by Ce and Tb shown by the formula (MI is Mg, Be, etc.; MII is Ca, Sr, Ba; 0<a≤2.0; 0≤x≤0.25; 0<y≤0.4; 0.0001≤z≤0.4), and (C) a blue fluorescent substance putting a blue color consisting essentially of a range of wave length of 430W470 nm, slightly emitting ultraviolet rays, requiring aline and/or band spectrum having band range of <40 nm is formed in the inner face of a glass tube, to give the desired fluorescent lamp.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1411681A JPS57128781A (en) | 1981-02-02 | 1981-02-02 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1411681A JPS57128781A (en) | 1981-02-02 | 1981-02-02 | Fluorescent lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57128781A true JPS57128781A (en) | 1982-08-10 |
JPS6212951B2 JPS6212951B2 (en) | 1987-03-23 |
Family
ID=11852140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1411681A Granted JPS57128781A (en) | 1981-02-02 | 1981-02-02 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57128781A (en) |
-
1981
- 1981-02-02 JP JP1411681A patent/JPS57128781A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6212951B2 (en) | 1987-03-23 |
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