GB695115A - Improvements in or relating to television transmitting tubes - Google Patents

Improvements in or relating to television transmitting tubes

Info

Publication number
GB695115A
GB695115A GB5304/50A GB530450A GB695115A GB 695115 A GB695115 A GB 695115A GB 5304/50 A GB5304/50 A GB 5304/50A GB 530450 A GB530450 A GB 530450A GB 695115 A GB695115 A GB 695115A
Authority
GB
United Kingdom
Prior art keywords
conductive
insulating material
granules
march
supported
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
GB5304/50A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB695115A publication Critical patent/GB695115A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J31/32—Tubes with image amplification section, e.g. image-iconoscope, supericonoscope

Abstract

695,115. Television pick-up tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 2, 1950 [March 5, 1949], No. 5304/50. Class 39(i) An electrically-conductive electron permeable screen is supported on projecting elements of conductive or insulating material at a short distance from the image electrode of a transmitting tube on at least the photo cathode side thereof. The conductive screen may be the signal plate and its presence prevents the redistribution of secondary electrons over the surface of the image electrode. The conductive layer 8 about .2Á thick may be supported on granules of pulverulent glass or ferro-chromium applied to the semi-conductive glass plate 18 of a target electrode. The granules are not thicker than 10Á. In Fig. 3 a double side mosaic 19 with apertures lined with insulating material 20 and filled with metal grains 21 is covered with a conductive layer which is held out of contact with the metal grains by the projecting insulating material.
GB5304/50A 1949-03-05 1950-03-02 Improvements in or relating to television transmitting tubes Expired GB695115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL288035X 1949-03-05

Publications (1)

Publication Number Publication Date
GB695115A true GB695115A (en) 1953-08-05

Family

ID=19782619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5304/50A Expired GB695115A (en) 1949-03-05 1950-03-02 Improvements in or relating to television transmitting tubes

Country Status (5)

Country Link
US (1) US2617058A (en)
BE (1) BE494288A (en)
CH (1) CH288035A (en)
FR (1) FR1015699A (en)
GB (1) GB695115A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874101A (en) * 1952-09-17 1959-02-17 Farnsworth Res Corp Method of making double-sided mosaic
US2908836A (en) * 1953-03-30 1959-10-13 Itt Charge storage device
BE527476A (en) * 1953-05-13
US2773992A (en) * 1953-06-17 1956-12-11 Itt Display amplifier and method of making same
IT595125A (en) * 1957-08-28
US3067348A (en) * 1959-12-21 1962-12-04 Rca Corp Pickup tube target structure
US3379914A (en) * 1966-02-01 1968-04-23 Hughes Aircraft Co Cathode ray storage tube having storage target with surface grooves and dielectric film overlying the grooves
US3878426A (en) * 1973-10-10 1975-04-15 Ralph L Norman Image storage matrix

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157048A (en) * 1930-07-17 1939-05-02 Rca Corp Television system
US2460093A (en) * 1945-04-19 1949-01-25 Rca Corp Cathode beam transmitter tube
US2452619A (en) * 1946-02-07 1948-11-02 Rca Corp Cathode-ray tube

Also Published As

Publication number Publication date
US2617058A (en) 1952-11-04
FR1015699A (en) 1952-10-17
CH288035A (en) 1952-12-31
BE494288A (en)

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