JPS5512638A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPS5512638A JPS5512638A JP8494478A JP8494478A JPS5512638A JP S5512638 A JPS5512638 A JP S5512638A JP 8494478 A JP8494478 A JP 8494478A JP 8494478 A JP8494478 A JP 8494478A JP S5512638 A JPS5512638 A JP S5512638A
- Authority
- JP
- Japan
- Prior art keywords
- coated
- fine particles
- fluorescent substance
- glass tube
- fluorescent
- 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
Abstract
PURPOSE: To reduce lamp cost and also to lessen the lowering of lamp luminous flux by making the ratio of fine particles in fluorescent substance to be coated on the glass tube side lower than the ratio of fine particles in fluorescent substance to be coated on the discharge side.
CONSTITUTION: The two fluorescent layers 2 and 3 are coated on the inside wall of the glass tube 1 by the procedure in which the fluorescent substance 2 having lesser amounts of fine particles is coated on the glass tube 1 side, and then on the fluorescent layer 2, or the discharge side, the fluorescent substance 3 having larger amounts of fine particles is coated. Thus, the lowering of luminous flux due to the remaining of undecomposed tackifier can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8494478A JPS5919413B2 (en) | 1978-07-11 | 1978-07-11 | fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8494478A JPS5919413B2 (en) | 1978-07-11 | 1978-07-11 | fluorescent lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5512638A true JPS5512638A (en) | 1980-01-29 |
JPS5919413B2 JPS5919413B2 (en) | 1984-05-07 |
Family
ID=13844751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8494478A Expired JPS5919413B2 (en) | 1978-07-11 | 1978-07-11 | fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5919413B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776742A (en) * | 1980-10-31 | 1982-05-13 | Toshiba Corp | Fluorescent lamp |
-
1978
- 1978-07-11 JP JP8494478A patent/JPS5919413B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776742A (en) * | 1980-10-31 | 1982-05-13 | Toshiba Corp | Fluorescent lamp |
Also Published As
Publication number | Publication date |
---|---|
JPS5919413B2 (en) | 1984-05-07 |
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