GB451451A - Improvements in or relating to cathode ray tubes and methods of manufacturing the same - Google Patents
Improvements in or relating to cathode ray tubes and methods of manufacturing the sameInfo
- Publication number
- GB451451A GB451451A GB15069/35A GB1506935A GB451451A GB 451451 A GB451451 A GB 451451A GB 15069/35 A GB15069/35 A GB 15069/35A GB 1506935 A GB1506935 A GB 1506935A GB 451451 A GB451451 A GB 451451A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- coating
- groove
- sections
- solution
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 5
- 238000000576 coating method Methods 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005507 spraying Methods 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/861—Vessels or containers characterised by the form or the structure thereof
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
451,451. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Orth, R. T. ; 658, Ridgewood Road, Maplewood, New Jersey, U.S.A.) May 23, 1935, No. 15069. Convention date, June 2, 1934. [Class 39 (i)] A cathode-ray tube has an envelope consisting of at least two sections fused together, one of the sections acting as the end wall closing one end of the rest of the envelope and the completed envelope having a peripheral recess or bent-in portion substantially at the fused area serving as a division between two sections which are fused together. As shown in Fig. 1, a cathode-ray tube is provided with a portion 2 containing an electron gun similar to that described in Specification 402,607, a frusto-conical portion 3 having an internal silver or graphite coating 6, and an end portion 4 having a fluorescent coating 10. The portion 4 is made separately, preferably of material having different optical qualities from the main envelope, such as may be optically worked or formed into a lens. The fluorescent coating is deposited by spraying or settling from a solution, and the portion 4 is then sealed to the portion 3, if necessary through a graded seal, the groove 5 being made while the seal is plastic. The coating 6 is then deposited from solution, the tube being rotated in a vertical position with the wall 4 uppermost. The groove 5 serves to prevent contamination of the fluorescent coating by the solution. The groove 5 may also be used to support components within the tube, such as the element 50, Fig. 6, which may be a photo-sensitive mosaic or an auxiliary anode, and the element 52 which may merely support the element 50 through members 54. Portions of the envelope may be of metal. The Specification as open to inspection under Sect. 91 comprises the application to electron discharge tubes generally. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US728686A US2123957A (en) | 1934-06-02 | 1934-06-02 | Electron tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451451A true GB451451A (en) | 1936-08-06 |
Family
ID=24927891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15069/35A Expired GB451451A (en) | 1934-06-02 | 1935-05-23 | Improvements in or relating to cathode ray tubes and methods of manufacturing the same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2123957A (en) |
| DE (1) | DE704365C (en) |
| GB (1) | GB451451A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639999A (en) * | 1949-10-29 | 1953-05-26 | Gen Electric | Method of forming a transparent reflection reducing coating on glass and the articleresulting therefrom |
| US2546828A (en) * | 1950-02-17 | 1951-03-27 | Nat Union Radio Corp | Target assembly for cathode-ray tubes |
| US2881345A (en) * | 1953-02-03 | 1959-04-07 | Claude General Neon Lights Ltd | Low pressure mercury vapour electric discharge lamps |
| US2816399A (en) * | 1953-06-09 | 1957-12-17 | Soltysik Zeno | Method of forming a well in light bulbs |
| US2755405A (en) * | 1953-10-15 | 1956-07-17 | Rca Corp | Color television tube |
| US2806165A (en) * | 1954-08-18 | 1957-09-10 | Rca Corp | Cathode ray tube |
| US2877605A (en) * | 1955-07-15 | 1959-03-17 | Rca Corp | Processing of electron tubes containing luminescent screens |
| US3041127A (en) * | 1959-12-22 | 1962-06-26 | Rca Corp | Method of fabricating a cathode ray tube |
| US3210145A (en) * | 1961-02-24 | 1965-10-05 | Litton Prec Products Inc | Electron gun supporting technique |
| US4245255A (en) * | 1979-04-13 | 1981-01-13 | Corning Glass Works | Implosion protection for TV tubes |
| US4264931A (en) * | 1979-04-13 | 1981-04-28 | Corning Glass Works | Implosion protection for TV tubes |
-
1934
- 1934-06-02 US US728686A patent/US2123957A/en not_active Expired - Lifetime
-
1935
- 1935-05-23 GB GB15069/35A patent/GB451451A/en not_active Expired
- 1935-06-03 DE DER93517D patent/DE704365C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2123957A (en) | 1938-07-19 |
| DE704365C (en) | 1941-03-28 |
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