JPS54144082A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS54144082A JPS54144082A JP5200578A JP5200578A JPS54144082A JP S54144082 A JPS54144082 A JP S54144082A JP 5200578 A JP5200578 A JP 5200578A JP 5200578 A JP5200578 A JP 5200578A JP S54144082 A JPS54144082 A JP S54144082A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor layer
- emitting light
- range
- phosphor
- fluorescent 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.)
- Pending
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE: To produce a high color rendition fluorescent lamp by attaching a first phosphor layer emitting light in the red range and a second phosphor layer composed of the mixture of phosphors emitting light in the long wave range and in the blue range to the bulb inner wall in sequence.
CONSTITUTION: On the inner wall of a discharge lamp glass bulb 31, a first phosphor layer 32 is formed by coating 3.5 MgO.0.5MgF2.GeO2/Mn emitting light in the red range and then, a second phosphor layer is formed on the first phosphor layer by dispersing the mixture of (Sr, Mg, Ba)3(PO4)2/Sn emitting light in the long wave range and Ba2P2O7/Ti emitting light in the blue range. As compared with the conventional blue phosphor MgWO4, the aforementioned Ba2P2O7/Ti is easy to select the grain size at the production of phosphor particle. Therefore, an even phosphor layer can be formed as mentioned above thereby ensuring stable production of a high color redition fluorescent lamp.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5200578A JPS54144082A (en) | 1978-04-28 | 1978-04-28 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5200578A JPS54144082A (en) | 1978-04-28 | 1978-04-28 | Fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54144082A true JPS54144082A (en) | 1979-11-09 |
Family
ID=12902698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5200578A Pending JPS54144082A (en) | 1978-04-28 | 1978-04-28 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54144082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105441075A (en) * | 2015-12-14 | 2016-03-30 | 江门市科恒实业股份有限公司 | Titanium barium pyrophosphate phosphor and preparation method thereof |
-
1978
- 1978-04-28 JP JP5200578A patent/JPS54144082A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105441075A (en) * | 2015-12-14 | 2016-03-30 | 江门市科恒实业股份有限公司 | Titanium barium pyrophosphate phosphor and preparation method thereof |
CN105441075B (en) * | 2015-12-14 | 2018-01-09 | 江门市科恒实业股份有限公司 | A kind of barium pyrophosphate titanium fluorescent material and preparation method thereof |
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