JPS553114A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS553114A JPS553114A JP7504578A JP7504578A JPS553114A JP S553114 A JPS553114 A JP S553114A JP 7504578 A JP7504578 A JP 7504578A JP 7504578 A JP7504578 A JP 7504578A JP S553114 A JPS553114 A JP S553114A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent material
- approx
- radius
- 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
- Discharge Lamps And Accessories Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE: To eliminate occurence of brown black color spot at a fluorescent lamp even after lighting for long time by satisfying special conditions of filled mercury amount and fluorescent material grain size distribution 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 3y≥10x+175, y≥50x-35 and 0<x≤2.5 (within shaded area in a graph) where x represents filled mercury amount (mg/cm3) and y represents rate (%) of the fluorescent material grain size (radius) within mean grainsize ±2μ. 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 6μ of mean gran radius and 73% of grain radius of 4W8μ, and filling rare gas and 15mg of mercury.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7504578A JPS553114A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7504578A JPS553114A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS553114A true JPS553114A (en) | 1980-01-10 |
Family
ID=13564834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7504578A Pending JPS553114A (en) | 1978-06-20 | 1978-06-20 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS553114A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5252363A (en) * | 1992-06-29 | 1993-10-12 | Morton International, Inc. | Method to produce universally paintable passivated galvanized steel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551057A (en) * | 1978-06-20 | 1980-01-07 | Matsushita Electronics Corp | Fluorescent lamp |
-
1978
- 1978-06-20 JP JP7504578A patent/JPS553114A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551057A (en) * | 1978-06-20 | 1980-01-07 | Matsushita Electronics Corp | Fluorescent lamp |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5252363A (en) * | 1992-06-29 | 1993-10-12 | Morton International, Inc. | Method to produce universally paintable passivated galvanized steel |
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