GB513739A - Improvements in or relating to cathode ray tubes - Google Patents
Improvements in or relating to cathode ray tubesInfo
- Publication number
- GB513739A GB513739A GB11716/38A GB1171638A GB513739A GB 513739 A GB513739 A GB 513739A GB 11716/38 A GB11716/38 A GB 11716/38A GB 1171638 A GB1171638 A GB 1171638A GB 513739 A GB513739 A GB 513739A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- screen
- tube
- sheet
- cathode
- 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.)
- Expired
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/24—Supports for luminescent material
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
513,739. Cathode-ray tubes : luminescent materials. FERNSEH AKT.-GES. April 19, 1938, No. 11716. Convention date. April 15. 1937. [Class 39 (i)] In order that the luminescent screen of a cathode-ray tube may be readily cooled it is mounted on an opaque sheet of metal forming part of the envelope and adapted to be cooled on its outer surface. Fig. 1 shows a screen 4 mounted on a metal sheet 6 the edges of which are sealed into the envelope 1. Coding-liquid such as water or oil, or gas, such as ammonia, may be circulated inside the space behind the plate 6 through pipes 8, 9. The screen is scanned by a beam from an electron gun 3 in a side arm 2 and the image is projected by a lens 5, the light passing through the plane end wall 10 of the envelope. In the arrangement shown in Fig. 2 the plate 6 forms the bottom of a receptacle which may be filled with liquid air, the envelope of the tube forming a double wall which may be silvered internally at 16, as in a Dewar flask. The electron gun 3 is arranged at the other end of the tube and the image projected by a lens 5 and inclined mirror 15. The tube may be formed with a joint 17 which can be broken when it is desired to change the screen. The sheet 6 may be of copper provided with a chrome iron edge for sealing to the glass and coated with aluminium or platinum to protect it from the luminescent material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE513739X | 1937-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB513739A true GB513739A (en) | 1939-10-20 |
Family
ID=6548490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11716/38A Expired GB513739A (en) | 1937-04-15 | 1938-04-19 | Improvements in or relating to cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB513739A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3051781A (en) * | 1960-04-04 | 1962-08-28 | Machlett Lab Inc | Means of converting electrical signals to visible pictures |
| US3209072A (en) * | 1961-06-26 | 1965-09-28 | Gen Electric | Light projection electron beam writing system |
| EP0089722A1 (en) * | 1982-03-19 | 1983-09-28 | Koninklijke Philips Electronics N.V. | Display tube |
-
1938
- 1938-04-19 GB GB11716/38A patent/GB513739A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3051781A (en) * | 1960-04-04 | 1962-08-28 | Machlett Lab Inc | Means of converting electrical signals to visible pictures |
| US3209072A (en) * | 1961-06-26 | 1965-09-28 | Gen Electric | Light projection electron beam writing system |
| EP0089722A1 (en) * | 1982-03-19 | 1983-09-28 | Koninklijke Philips Electronics N.V. | Display tube |
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