JPS5498566A - Fluorescent screen coating unit for color receiving tube - Google Patents
Fluorescent screen coating unit for color receiving tubeInfo
- Publication number
- JPS5498566A JPS5498566A JP525878A JP525878A JPS5498566A JP S5498566 A JPS5498566 A JP S5498566A JP 525878 A JP525878 A JP 525878A JP 525878 A JP525878 A JP 525878A JP S5498566 A JPS5498566 A JP S5498566A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- specific gravity
- valve
- time
- signal
- 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
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
PURPOSE: To establish uniform film thickness, by synchronizing the time of additional open valuve period of the specific gravity meter in the slurry circulation system with detection signal with the injection operation signal of the injection valve, and by supplying high concentration slurry within a limit time.
CONSTITUTION: It is utilized that the amount of fluorescent substance in slurry is proportional to the appearent specific gravity of slurry. With the recovered slurry, the specific gravity is lowered together with the lowering in the liquid level of coated slurry in the dispenser 1, and high concentration slurry is filled to the dispenser with the detection signal of the specific gravity meter 8. The operation time of the additional valve 10 is synchronized with the operation of the injection valve 3, and the high concentration slurry is added with the additional valve 10 with the specific gravity lowering signal and the synchronizing signal to manage a given specific gravity. The valve 10 is operated 1 to 4 times against the operation of five times of the injection valve operation and one time is made less quantity. With this method, the variation in specific gravity is about 1/10 of conventional systesm, for the coated slurry, and uniform fluorescent substance film can be formed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP525878A JPS5498566A (en) | 1978-01-23 | 1978-01-23 | Fluorescent screen coating unit for color receiving tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP525878A JPS5498566A (en) | 1978-01-23 | 1978-01-23 | Fluorescent screen coating unit for color receiving tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5498566A true JPS5498566A (en) | 1979-08-03 |
JPS5755170B2 JPS5755170B2 (en) | 1982-11-22 |
Family
ID=11606192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP525878A Granted JPS5498566A (en) | 1978-01-23 | 1978-01-23 | Fluorescent screen coating unit for color receiving tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498566A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5615531A (en) * | 1979-07-16 | 1981-02-14 | Mitsubishi Electric Corp | Coating of fluorescent slurry |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5276669U (en) * | 1975-12-05 | 1977-06-08 |
-
1978
- 1978-01-23 JP JP525878A patent/JPS5498566A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5276669U (en) * | 1975-12-05 | 1977-06-08 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5615531A (en) * | 1979-07-16 | 1981-02-14 | Mitsubishi Electric Corp | Coating of fluorescent slurry |
Also Published As
Publication number | Publication date |
---|---|
JPS5755170B2 (en) | 1982-11-22 |
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