FR833292A - Photoelectric or secondary emission discharge tube - Google Patents

Photoelectric or secondary emission discharge tube

Info

Publication number
FR833292A
FR833292A FR833292DA FR833292A FR 833292 A FR833292 A FR 833292A FR 833292D A FR833292D A FR 833292DA FR 833292 A FR833292 A FR 833292A
Authority
FR
France
Prior art keywords
photoelectric
discharge tube
secondary emission
emission discharge
tube
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
Other languages
French (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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of FR833292A publication Critical patent/FR833292A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • 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
    • H01J31/42—Image pick-up tubes having an input of visible light and electric output with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube
    • H01J31/44—Tubes with image amplification section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/34—Photoemissive electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR833292D 1937-02-04 1938-02-04 Photoelectric or secondary emission discharge tube Expired FR833292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE833292X 1937-02-04

Publications (1)

Publication Number Publication Date
FR833292A true FR833292A (en) 1938-10-18

Family

ID=6758948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR833292D Expired FR833292A (en) 1937-02-04 1938-02-04 Photoelectric or secondary emission discharge tube

Country Status (2)

Country Link
FR (1) FR833292A (en)
NL (1) NL49040C (en)

Also Published As

Publication number Publication date
NL49040C (en)

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