FR2144742B1 - - Google Patents

Info

Publication number
FR2144742B1
FR2144742B1 FR7224007A FR7224007A FR2144742B1 FR 2144742 B1 FR2144742 B1 FR 2144742B1 FR 7224007 A FR7224007 A FR 7224007A FR 7224007 A FR7224007 A FR 7224007A FR 2144742 B1 FR2144742 B1 FR 2144742B1
Authority
FR
France
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
FR7224007A
Other versions
FR2144742A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2144742A1 publication Critical patent/FR2144742A1/fr
Application granted granted Critical
Publication of FR2144742B1 publication Critical patent/FR2144742B1/fr
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
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
    • 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
    • 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
    • H01J31/38—Tubes with photoconductive screen, e.g. vidicon
FR7224007A 1971-07-02 1972-07-03 Expired FR2144742B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL7109140A NL7109140A (fr) 1971-07-02 1971-07-02
US26525972A 1972-06-22 1972-06-22
US447563A US3866079A (en) 1971-07-02 1974-03-04 Television camera tube in which the detrimental effect of the return beam is counteracted

Publications (2)

Publication Number Publication Date
FR2144742A1 FR2144742A1 (fr) 1973-02-16
FR2144742B1 true FR2144742B1 (fr) 1977-07-22

Family

ID=27351688

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224007A Expired FR2144742B1 (fr) 1971-07-02 1972-07-03

Country Status (7)

Country Link
US (1) US3866079A (fr)
AU (1) AU463685B2 (fr)
CA (1) CA950954A (fr)
DE (1) DE2230529C2 (fr)
FR (1) FR2144742B1 (fr)
GB (1) GB1336970A (fr)
NL (1) NL7109140A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7809345A (nl) * 1978-09-14 1980-03-18 Philips Nv Kathodestraalbuis.
JPS5688240A (en) * 1979-12-19 1981-07-17 Hitachi Ltd Camera tube
NL8004748A (nl) * 1980-08-22 1982-03-16 Philips Nv Televisiecamerabuis.
GB2088624B (en) * 1980-11-27 1984-09-19 English Electric Valve Co Ltd Improvements in or relating to camera tubes
JPS5996639A (ja) * 1982-11-26 1984-06-04 Hitachi Ltd 撮像管
FR2630586A1 (fr) * 1988-04-22 1989-10-27 Thomson Csf Tube de camera avec ecran de suppression d'image parasite
GB2325335B (en) * 1997-05-16 2001-07-11 Leica Lithography Systems Ltd Electron beam aperture element
GB2346007B (en) 1999-01-21 2004-03-03 Imaging & Sensing Tech Corp Getter flash shield

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747133A (en) * 1950-07-05 1956-05-22 Rca Corp Television pickup tube
US2839601A (en) * 1950-09-27 1958-06-17 Julius Cato Vredenburg Inglesb Methods of and apparatus for rendering visible magnetic and electric field patterns
NL293465A (fr) * 1962-05-31
US3307061A (en) * 1963-09-16 1967-02-28 Gen Electric Electrostatic return beam camera tube
NL160428C (nl) * 1968-02-13 1979-10-15 Philips Nv Beeldopneeminrichting met een beeldopneembuis en beeldop- neembuis voor een dergelijke inrichting.

Also Published As

Publication number Publication date
FR2144742A1 (fr) 1973-02-16
AU4400572A (en) 1974-01-03
CA950954A (en) 1974-07-09
NL7109140A (fr) 1973-01-04
GB1336970A (en) 1973-11-14
AU463685B2 (en) 1975-07-31
DE2230529A1 (de) 1973-01-11
DE2230529C2 (de) 1982-12-02
US3866079A (en) 1975-02-11

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Legal Events

Date Code Title Description
ST Notification of lapse