GB429045A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB429045A
GB429045A GB35738/33A GB3573833A GB429045A GB 429045 A GB429045 A GB 429045A GB 35738/33 A GB35738/33 A GB 35738/33A GB 3573833 A GB3573833 A GB 3573833A GB 429045 A GB429045 A GB 429045A
Authority
GB
United Kingdom
Prior art keywords
end portion
tube
screen
diameter
cathode ray
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
Application number
GB35738/33A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE406715D priority Critical patent/BE406715A/xx
Priority to NL49145D priority patent/NL49145C/xx
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB35738/33A priority patent/GB429045A/en
Priority to FR781725D priority patent/FR781725A/en
Priority to US755336A priority patent/US2089546A/en
Publication of GB429045A publication Critical patent/GB429045A/en
Expired legal-status Critical Current

Links

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
    • 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
    • H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

429,045. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, DUDDING, B. P., and JESTY, L. C., c/o General Electric Co., Wembley, Middlesex. Dec. 19, 1933, No. 35738. [Class 39 (i)] The envelope of a cathode ray tube which contains a fluorescent screen either on the end wall or separately has a conical or cylindrical portion a, Fig. 1, adjacent to an end portion b which surrounds the end c, and the end portion which is at least 15 cm. in diameter, has a radius of curvature everywhere so great that no part of it is in dangerous tension, that is, a tension exceeding two-thirds of the breaking stress of the material of the envelope. The ratio of the radius of curvature of the end portion b to that of the screen c is generally not less than 1 : 7À5, for example 1 : 5. The ratio of the maximum diameter of the tube to the diameter of that part of the screen on which an image can be reproduced is preferably no greater than 4:3. Dimensions of two examples of tube are given.
GB35738/33A 1933-12-19 1933-12-19 Improvements in or relating to cathode ray tubes Expired GB429045A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE406715D BE406715A (en) 1933-12-19
NL49145D NL49145C (en) 1933-12-19
GB35738/33A GB429045A (en) 1933-12-19 1933-12-19 Improvements in or relating to cathode ray tubes
FR781725D FR781725A (en) 1933-12-19 1934-11-23 Cathode ray tube casings
US755336A US2089546A (en) 1933-12-19 1934-11-30 Cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35738/33A GB429045A (en) 1933-12-19 1933-12-19 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB429045A true GB429045A (en) 1935-05-23

Family

ID=10381027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35738/33A Expired GB429045A (en) 1933-12-19 1933-12-19 Improvements in or relating to cathode ray tubes

Country Status (5)

Country Link
US (1) US2089546A (en)
BE (1) BE406715A (en)
FR (1) FR781725A (en)
GB (1) GB429045A (en)
NL (1) NL49145C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533334A (en) * 1945-10-18 1950-12-12 Philco Corp Cathode-ray tube
US2538852A (en) * 1945-12-29 1951-01-23 Rauland Corp Kinescope projection by refractive optical system mounted on tube neck
US2629838A (en) * 1949-08-04 1953-02-24 Technicolor Motion Picture Color television screen with correction for overplay
US2904713A (en) * 1952-07-15 1959-09-15 Heraeus Schott Quarzschmelze Casings for gas discharge tubes and lamps and process
US3128169A (en) * 1953-11-25 1964-04-07 Heraeus Schott Quarzschmelze Process for making quartz glass casings

Also Published As

Publication number Publication date
NL49145C (en)
BE406715A (en)
US2089546A (en) 1937-08-10
FR781725A (en) 1935-05-21

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