JPS54146482A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS54146482A JPS54146482A JP5476578A JP5476578A JPS54146482A JP S54146482 A JPS54146482 A JP S54146482A JP 5476578 A JP5476578 A JP 5476578A JP 5476578 A JP5476578 A JP 5476578A JP S54146482 A JPS54146482 A JP S54146482A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- fluorescent
- film
- tube
- discharge
- 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 prevent the dielectric breakdown of a fluorescent lamp and the production of black spot thereon, by providing a transprent electro-conductive coating film on the inside surface of a fluorescent tube and coating a fluorescent substance of large grain size on said film.
CONSTITUTION: The transparent electrocuductive coating film (nesa film) 2 of tin oxide (SnO2-x) is coated on the inside surface of the fluorescent tube 1 of glass. The fluorescent substance 3 is coated on said film. Mercury gas and argon gas are filled in the tube, thereby manufacturing the nesa-type fluorescent lamp. The grain diameter of the fluorescent substance 3 is made larger 6 μm to increase the percentage of voids between the grains of the fluorescent substance. Discharge is caused through the voids. The higher the percentage is, the lower the effect of the discharge on the fluorescent substance is. The black spot is thus prevented from being produced on the fluorescent tube by breakdown discharge. If fine powder of tin oxide (SnO2-x) is blended in the fluorescent substance, the fine grains of the powder adhere to the surfaces of the grains of the fluorescent substance to raise the bonding property of the fluorescent substance with the coating film 2.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5476578A JPS54146482A (en) | 1978-05-09 | 1978-05-09 | Fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5476578A JPS54146482A (en) | 1978-05-09 | 1978-05-09 | Fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54146482A true JPS54146482A (en) | 1979-11-15 |
Family
ID=12979858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5476578A Pending JPS54146482A (en) | 1978-05-09 | 1978-05-09 | Fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146482A (en) |
-
1978
- 1978-05-09 JP JP5476578A patent/JPS54146482A/en active Pending
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