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GB657613A - Improvements in or relating to mosaic screens - Google Patents

Improvements in or relating to mosaic screens

Info

Publication number
GB657613A
GB657613A GB5469/46A GB546946A GB657613A GB 657613 A GB657613 A GB 657613A GB 5469/46 A GB5469/46 A GB 5469/46A GB 546946 A GB546946 A GB 546946A GB 657613 A GB657613 A GB 657613A
Authority
GB
United Kingdom
Prior art keywords
mesh
insulated
aluminium
bars
group
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
GB5469/46A
Inventor
Harry Cassman
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB21812/50A priority Critical patent/GB657666A/en
Priority to GB5469/46A priority patent/GB657613A/en
Priority to FR947457D priority patent/FR947457A/en
Priority to US759237A priority patent/US2507958A/en
Priority to CH275297D priority patent/CH275297A/en
Publication of GB657613A publication Critical patent/GB657613A/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
    • H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon
    • H01J31/36—Tubes with image amplification section, e.g. image-orthicon

Landscapes

  • Conductive Materials (AREA)
  • Secondary Cells (AREA)
  • Particle Accelerators (AREA)
  • Powder Metallurgy (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

657,613. Ornamenting. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 21, 1946, No. 5469. [Class 93] [Also in Group XL (a)] In the manufacture of a cathode-ray tube mosaic screen, a mesh comprising bars 7 of triangular cross-section is arranged with the ridges 2 in contact with an insulating surface 3, and metal is evaporated on to the surface through the insterstices of the mesh to form metal elements 8 insulated by a shadow area 9 from the bars 7. The mesh which may or may not be subsequently removed may be of nickel or aluminium and may be insulated, e.g. by anodising the aluminium. The base plate may be of glass or mica and the deposited metal, antimony, a stibide or silver. The mesh may be mounted on the insulating surface by the use of a cement comprising lead borate or lithium borate powder suspended in acetone or water. Specifications 657,634 and 657,666, [both in Group XL (a)], are referred to.
GB5469/46A 1946-02-21 1946-02-21 Improvements in or relating to mosaic screens Expired GB657613A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB21812/50A GB657666A (en) 1946-02-21 1946-02-21 Improvements in or relating to television transmission tubes
GB5469/46A GB657613A (en) 1946-02-21 1946-02-21 Improvements in or relating to mosaic screens
FR947457D FR947457A (en) 1946-02-21 1947-06-02 mosaic screens
US759237A US2507958A (en) 1946-02-21 1947-07-05 Mosaic screen for cathode-ray tubes
CH275297D CH275297A (en) 1946-02-21 1948-09-30 Image capture tube in television image pickup apparatus and method of making the same.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5469/46A GB657613A (en) 1946-02-21 1946-02-21 Improvements in or relating to mosaic screens

Publications (1)

Publication Number Publication Date
GB657613A true GB657613A (en) 1951-09-26

Family

ID=9796762

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5469/46A Expired GB657613A (en) 1946-02-21 1946-02-21 Improvements in or relating to mosaic screens
GB21812/50A Expired GB657666A (en) 1946-02-21 1946-02-21 Improvements in or relating to television transmission tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB21812/50A Expired GB657666A (en) 1946-02-21 1946-02-21 Improvements in or relating to television transmission tubes

Country Status (4)

Country Link
US (1) US2507958A (en)
CH (1) CH275297A (en)
FR (1) FR947457A (en)
GB (2) GB657613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233983A (en) * 1989-06-07 1991-01-23 Ppg Industries Inc Producing sputtered coating using foraminous mask member

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563488A (en) * 1951-08-07 Barrier grid storage tube
US2547638A (en) * 1948-12-18 1951-04-03 Raytheon Mfg Co Image storage tube
US2730639A (en) * 1950-10-16 1956-01-10 Emi Ltd Target structures such as are utilised in television transmission tubes
US2973445A (en) * 1951-03-09 1961-02-28 Machlett Lab Inc Device for detection, conversion, and amplification of x-ray images
US2743150A (en) * 1951-06-01 1956-04-24 Rca Corp Glass targets for image orthicons
US2755401A (en) * 1951-11-16 1956-07-17 Rca Corp Color television pickup tubes
US2901531A (en) * 1952-03-20 1959-08-25 Robert E Mccoy Cross-talk neutralization in color pick-up tube
US2767684A (en) * 1953-03-25 1956-10-23 Rca Corp Apparatus for forming juxtaposed coatings
US2829265A (en) * 1954-11-23 1958-04-01 Westinghouse Electric Corp Electrode structrue for imaging device
US2879419A (en) * 1956-12-26 1959-03-24 Gen Electric Target electrode assembly
US3031597A (en) * 1957-12-18 1962-04-24 Itt Information storage display tube and storage screen assembly therefor
US2967255A (en) * 1958-08-05 1961-01-03 Rca Corp Image pickup device
US3002847A (en) * 1958-09-11 1961-10-03 Robert A Shaffer Process for producing a fine mesh pattern on a substrate
US3042825A (en) * 1958-12-22 1962-07-03 Columbia Broadcasting Syst Inc Drum target image orthicon
US3067348A (en) * 1959-12-21 1962-12-04 Rca Corp Pickup tube target structure
US3252030A (en) * 1960-06-21 1966-05-17 Diamond Power Speciality Photoelectric camera tube with transistor-type photoanode
US3398317A (en) * 1965-01-12 1968-08-20 Stanford Research Inst Information storage tube
US3323490A (en) * 1966-02-21 1967-06-06 Trw Inc Adjustable mask
US3495117A (en) * 1967-11-17 1970-02-10 Us Air Force High resolution input screen
US5786028A (en) * 1996-09-05 1998-07-28 Cantwell; Jay S. Masking tape and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB406353A (en) * 1932-08-25 1934-02-26 Emi Ltd Improvements in or relating to cathode ray tubes and the like
US2244365A (en) * 1937-02-27 1941-06-03 Rca Corp Electron discharge device
US2237681A (en) * 1937-12-03 1941-04-08 Emi Ltd Television transmitting tube
BE432586A (en) * 1938-02-08
BE460122A (en) * 1942-05-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233983A (en) * 1989-06-07 1991-01-23 Ppg Industries Inc Producing sputtered coating using foraminous mask member
GB2233983B (en) * 1989-06-07 1993-07-21 Ppg Industries Inc Apparatus and method for making sputtered coatings

Also Published As

Publication number Publication date
GB657666A (en) 1951-09-26
FR947457A (en) 1949-07-04
CH275297A (en) 1951-05-15
US2507958A (en) 1950-05-16

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