CH316987A - Television device with a receiving tube with adjustable electron-optical magnification - Google Patents

Television device with a receiving tube with adjustable electron-optical magnification

Info

Publication number
CH316987A
CH316987A CH316987DA CH316987A CH 316987 A CH316987 A CH 316987A CH 316987D A CH316987D A CH 316987DA CH 316987 A CH316987 A CH 316987A
Authority
CH
Switzerland
Prior art keywords
receiving tube
television device
optical magnification
adjustable electron
electron
Prior art date
Application number
Other languages
German (de)
Inventor
Carel Francken Jan
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH316987A publication Critical patent/CH316987A/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
CH316987D 1953-02-02 1954-02-01 Television device with a receiving tube with adjustable electron-optical magnification CH316987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL316987X 1953-02-02

Publications (1)

Publication Number Publication Date
CH316987A true CH316987A (en) 1956-10-31

Family

ID=19783841

Family Applications (1)

Application Number Title Priority Date Filing Date
CH316987D CH316987A (en) 1953-02-02 1954-02-01 Television device with a receiving tube with adjustable electron-optical magnification

Country Status (6)

Country Link
US (1) US2803753A (en)
BE (1) BE526155A (en)
CH (1) CH316987A (en)
DE (1) DE935737C (en)
FR (1) FR1092162A (en)
GB (1) GB739362A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2310671A (en) * 1941-02-12 1943-02-09 John C Batchelor Image producer
US2384232A (en) * 1942-05-02 1945-09-04 Rca Corp Television view finder

Also Published As

Publication number Publication date
BE526155A (en)
FR1092162A (en) 1955-04-19
US2803753A (en) 1957-08-20
DE935737C (en) 1955-11-24
GB739362A (en) 1955-10-26

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