GB620843A - Improvements in or relating to television transmitter tubes and to the manufacture of target or mosaic electrodes suitable for use therein - Google Patents

Improvements in or relating to television transmitter tubes and to the manufacture of target or mosaic electrodes suitable for use therein

Info

Publication number
GB620843A
GB620843A GB16391/46A GB1639146A GB620843A GB 620843 A GB620843 A GB 620843A GB 16391/46 A GB16391/46 A GB 16391/46A GB 1639146 A GB1639146 A GB 1639146A GB 620843 A GB620843 A GB 620843A
Authority
GB
United Kingdom
Prior art keywords
film
target
relating
manufacture
crimp
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
GB16391/46A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB620843A publication Critical patent/GB620843A/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
    • H01J29/02—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
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/41—Charge-storage screens using secondary emission, e.g. for supericonoscope
    • H01J29/413—Charge-storage screens using secondary emission, e.g. for supericonoscope for writing and reading of charge pattern on opposite sides of the target, e.g. for superorthicon

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

620,843. Glass-metal seals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 29, 1946, No. 16391. Convention date, Aug. 16, 1941. [Class 36] [Also in Group XL (a)] A method of manufacturing a target electrode for use in a television pick-up tube, comprises supporting a thin non-planar film of vitreous material in contact with the crimp promontories of a woven wire mesh screen, heating the film to its softening temperature until the film is sealed to the crimp promotories and shrinks by surface tension to be taut over the surface, and finally flattening the film and screen under heat. The mesh may be coated with enamel on one or both sides before the film is sealed to it. Fig. 4 shows a cross-section of the completed electrode. Specifications 613,003, [Group XL (a)], and 620,836 are referred to.
GB16391/46A 1941-08-16 1946-05-29 Improvements in or relating to television transmitter tubes and to the manufacture of target or mosaic electrodes suitable for use therein Expired GB620843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US407131A US2473220A (en) 1941-08-16 1941-08-16 Method of manufacturing target electrodes

Publications (1)

Publication Number Publication Date
GB620843A true GB620843A (en) 1949-03-31

Family

ID=23610733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16391/46A Expired GB620843A (en) 1941-08-16 1946-05-29 Improvements in or relating to television transmitter tubes and to the manufacture of target or mosaic electrodes suitable for use therein

Country Status (2)

Country Link
US (1) US2473220A (en)
GB (1) GB620843A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567415A (en) * 1948-09-30 1951-09-11 Bell Telephone Labor Inc Grid assembly and method of fabrication
USRE23802E (en) * 1948-11-05 1954-03-16 Photocathode
US2747133A (en) * 1950-07-05 1956-05-22 Rca Corp Television pickup tube
US2611100A (en) * 1950-12-05 1952-09-16 Rca Corp Temperature-compensated target assembly for color-kinescopes, etc.
US2743150A (en) * 1951-06-01 1956-04-24 Rca Corp Glass targets for image orthicons
GB718399A (en) * 1952-04-09 1954-11-10 English Electric Valve Co Ltd Improvements in or relating to television and like pick-up tubes
NL262582A (en) * 1960-03-31

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844767A (en) * 1906-04-26 1907-02-19 Lem S Brock Method of producing wire-glass.
US1395963A (en) * 1919-05-19 1921-11-01 Chemical Foundation Inc Method of and apparatus for forming glass tubes
US1548611A (en) * 1921-08-18 1925-08-04 Gen Electric Method of making glass receptacles
US1562533A (en) * 1923-02-15 1925-11-24 Weintraub Ezechiel Sealed joint
BE362358A (en) * 1928-07-12
US1876269A (en) * 1929-10-16 1932-09-06 Theodore F Yagle Projection screen
US2102049A (en) * 1934-03-15 1937-12-14 Hanbury A Budden Illuminating apparatus and method of making same
NL47249C (en) * 1934-12-21
US2179086A (en) * 1936-05-06 1939-11-07 Farnsworth Television & Radio Means for producing an incandescent image
US2160022A (en) * 1937-08-31 1939-05-30 Rca Corp Screen for cathode ray tubes
US2287546A (en) * 1938-02-24 1942-06-23 Polaroid Corp Process of manufacturing glasscoated plastic material
GB532106A (en) * 1939-05-24 1941-01-17 British Thomson Houston Co Ltd Improvements in and relating to methods of producing optical effects

Also Published As

Publication number Publication date
US2473220A (en) 1949-06-14

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