JPS553116A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS553116A JPS553116A JP7504778A JP7504778A JPS553116A JP S553116 A JPS553116 A JP S553116A JP 7504778 A JP7504778 A JP 7504778A JP 7504778 A JP7504778 A JP 7504778A JP S553116 A JPS553116 A JP S553116A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- fluorescent material
- approx
- glass tube
- inside surface
- 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)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
PURPOSE: To eliminate occurence of brown black color spot at a fluoresecent lamp even after lighting for long time by satisfying special conditions of the mean grain radius of fluorescent material and coated amount thereof of the lamp coated with fluorescent material via a transparent conductive film on the inside surface of a glass tube.
CONSTITUTION: A fluorescent lamp coated with fluorescent material via a transparent conductive film (NESA film) on the inside surface of a glass tube is so provided as to satisfy x≥5, y≤2x-7, y≤0.2x+2.9 (within shaded area in a graph) where x represents the mean grain radius (μ) of the fluoresent material and y represents the coated amount (mg/cm2) per unit area. 40W rapid start type fluorescent lamp is manufactured by forming a NESA film of tin oxide of approx. 30KΩ in resistance on the inside surface of a glass tube having, for example, approx. 32mm of outer diameter and approx. 1200mm of length, coating white color fluorescent material containing 7μ of mean grain radius and filling rare gas and mercury in the lamp.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7504778A JPS553116A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7504778A JPS553116A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS553116A true JPS553116A (en) | 1980-01-10 |
Family
ID=13564890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7504778A Pending JPS553116A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS553116A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0867915A2 (en) * | 1997-03-25 | 1998-09-30 | Nec Corporation | Noble gas discharge lamp |
-
1978
- 1978-06-20 JP JP7504778A patent/JPS553116A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0867915A2 (en) * | 1997-03-25 | 1998-09-30 | Nec Corporation | Noble gas discharge lamp |
EP0867915A3 (en) * | 1997-03-25 | 1999-02-03 | Nec Corporation | Noble gas discharge lamp |
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