GB606489A - Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor - Google Patents

Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor

Info

Publication number
GB606489A
GB606489A GB16542/46A GB1654246A GB606489A GB 606489 A GB606489 A GB 606489A GB 16542/46 A GB16542/46 A GB 16542/46A GB 1654246 A GB1654246 A GB 1654246A GB 606489 A GB606489 A GB 606489A
Authority
GB
United Kingdom
Prior art keywords
cathode
iconoscopes
relating
ray tubes
circuit arrangements
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
GB16542/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB606489A publication Critical patent/GB606489A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
    • G01R27/205—Measuring contact resistance of connections, e.g. of earth connections
    • 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
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube
    • 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
    • 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
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
    • 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
    • H01J31/30—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 anode potential, e.g. iconoscope

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Tires In General (AREA)

Abstract

606,489. Television. PHILIPS LAMPS, Ltd. May 31, 1946, No. 16542. Convention date, Sept. 22, 1939. [Class 40 (iii)] [Also in Group XL (a)] A cathode-ray tube such as an iconoscope has a coating 3, opposite the screen 2, which is unconnected externally except through a condenser 18 to a source of constant potential. The coating charges up until it no longer collects electrons, the condenser preventing highfrequency fluctuations. The subject-matter is identical with that of Specification 551,014.
GB16542/46A 1939-09-22 1946-05-31 Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor Expired GB606489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL95328A NL64723C (en) 1939-09-22 1939-09-22

Publications (1)

Publication Number Publication Date
GB606489A true GB606489A (en) 1948-08-13

Family

ID=19787957

Family Applications (2)

Application Number Title Priority Date Filing Date
GB10128/41A Expired GB551014A (en) 1939-09-22 1941-08-08 Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor
GB16542/46A Expired GB606489A (en) 1939-09-22 1946-05-31 Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB10128/41A Expired GB551014A (en) 1939-09-22 1941-08-08 Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor

Country Status (6)

Country Link
US (1) US2325676A (en)
BE (1) BE440865A (en)
DE (1) DE1080594B (en)
FR (1) FR872140A (en)
GB (2) GB551014A (en)
NL (1) NL64723C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653926A (en) * 1948-06-22 1951-05-30 Emi Ltd Improvements in or relating to circuit arrangements embodying electron discharge devices employing target electrodes

Also Published As

Publication number Publication date
BE440865A (en) 1941-04-30
GB551014A (en) 1943-02-04
US2325676A (en) 1943-08-03
DE1080594B (en) 1960-04-28
FR872140A (en) 1942-06-01
NL64723C (en) 1949-11-15

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