DE2904865C2 - - Google Patents

Info

Publication number
DE2904865C2
DE2904865C2 DE19792904865 DE2904865A DE2904865C2 DE 2904865 C2 DE2904865 C2 DE 2904865C2 DE 19792904865 DE19792904865 DE 19792904865 DE 2904865 A DE2904865 A DE 2904865A DE 2904865 C2 DE2904865 C2 DE 2904865C2
Authority
DE
Germany
Prior art keywords
electrode
opening
cathode
diameter
anode
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
DE19792904865
Other languages
German (de)
English (en)
Other versions
DE2904865A1 (de
Inventor
Nidamboor Vsanth Cumberland R.I. Us Rao
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 DE2904865A1 publication Critical patent/DE2904865A1/de
Application granted granted Critical
Publication of DE2904865C2 publication Critical patent/DE2904865C2/de
Granted 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
    • 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

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
DE19792904865 1978-02-13 1979-02-09 Vorrichtung mit einer fernsehkameraroehre und fernsehkameraroehre fuer eine derartige vorrichtung Granted DE2904865A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87708078A 1978-02-13 1978-02-13

Publications (2)

Publication Number Publication Date
DE2904865A1 DE2904865A1 (de) 1979-08-16
DE2904865C2 true DE2904865C2 (en, 2012) 1987-12-10

Family

ID=25369206

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792904865 Granted DE2904865A1 (de) 1978-02-13 1979-02-09 Vorrichtung mit einer fernsehkameraroehre und fernsehkameraroehre fuer eine derartige vorrichtung

Country Status (5)

Country Link
JP (1) JPS54129871A (en, 2012)
CA (1) CA1118831A (en, 2012)
DE (1) DE2904865A1 (en, 2012)
FR (1) FR2417182A1 (en, 2012)
GB (1) GB2015817B (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774948A (en) 1980-10-29 1982-05-11 Nippon Hoso Kyokai <Nhk> Electron gun
US4549113A (en) * 1981-02-06 1985-10-22 U.S. Philips Corporation Low noise electron gun
US4540916A (en) * 1981-10-30 1985-09-10 Nippon Hoso Kyokai Electron gun for television camera tube
US4701679A (en) * 1985-08-23 1987-10-20 Hitachi, Ltd. Method of and apparatus for controlling amount of electron beam in image pickup tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374379A (en) * 1964-03-02 1968-03-19 Nippon Columbia Low second grid voltage electron gun
BE759247A (fr) * 1969-11-22 1971-05-21 Philips Nv Dispositif muni d'un tube electronique, et tube electronique destine a un tel dispositif
NL167801C (nl) * 1970-09-04 1982-01-18 Philips Nv Inrichting met een televisiecamerabuis en televisie - camerabuis voor een dergelijke inrichting.
BE785749A (fr) * 1971-07-02 1973-01-02 Philips Nv Tube de camera de television (vidicon) dans lequel on contrecarre l'influence defavorable du faisceau de retour
US3831058A (en) * 1971-08-30 1974-08-20 Roosmalen J Van Device comprising a television camera tube and television camera
US3894261A (en) * 1973-07-09 1975-07-08 Hughes Aircraft Co No-crossover electron gun
GB1444062A (en) * 1974-06-08 1976-07-28 English Electric Valve Co Ltd Camera tubes

Also Published As

Publication number Publication date
DE2904865A1 (de) 1979-08-16
FR2417182B1 (en, 2012) 1984-02-24
JPH0213416B2 (en, 2012) 1990-04-04
FR2417182A1 (fr) 1979-09-07
JPS54129871A (en) 1979-10-08
GB2015817B (en) 1982-06-03
CA1118831A (en) 1982-02-23
GB2015817A (en) 1979-09-12

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: DAVID, G., 2000 HAMBURG

D2 Grant after examination
8363 Opposition against the patent
8328 Change in the person/name/address of the agent

Free format text: KOCH, I., DIPL.-ING. DR.-ING., PAT.-ASS., 2000 HAMBURG

8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL