FR835088A - Improvements to devices for transmitting or modifying electro-optical images - Google Patents

Improvements to devices for transmitting or modifying electro-optical images

Info

Publication number
FR835088A
FR835088A FR835088DA FR835088A FR 835088 A FR835088 A FR 835088A FR 835088D A FR835088D A FR 835088DA FR 835088 A FR835088 A FR 835088A
Authority
FR
France
Prior art keywords
transmitting
devices
optical images
modifying electro
electro
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR835088A publication Critical patent/FR835088A/en
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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/66—Magnetic lenses using electromagnetic means only

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electron Beam Exposure (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
FR835088D 1937-03-10 1938-03-10 Improvements to devices for transmitting or modifying electro-optical images Expired FR835088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7061/37A GB492167A (en) 1937-03-10 1937-03-10 Improvements in or relating to electro-optical image converting or transmitting arrangements

Publications (1)

Publication Number Publication Date
FR835088A true FR835088A (en) 1938-12-12

Family

ID=9825857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835088D Expired FR835088A (en) 1937-03-10 1938-03-10 Improvements to devices for transmitting or modifying electro-optical images

Country Status (3)

Country Link
US (1) US2185857A (en)
FR (1) FR835088A (en)
GB (1) GB492167A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563525A (en) * 1951-08-07 Image size control device for
US2494459A (en) * 1945-11-09 1950-01-10 Rca Corp Cathode-ray beam deflector
US2533809A (en) * 1948-07-03 1950-12-12 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2554257A (en) * 1949-12-14 1951-05-22 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
NL160744B (en) * 1950-05-04 Mengele & Soehne Masch Karl BENDING MACHINING EQUIPMENT.

Also Published As

Publication number Publication date
US2185857A (en) 1940-01-02
GB492167A (en) 1938-09-12

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