FR46705E - Improvements to cathode ray lamps - Google Patents

Improvements to cathode ray lamps

Info

Publication number
FR46705E
FR46705E FR46705DA FR46705E FR 46705 E FR46705 E FR 46705E FR 46705D A FR46705D A FR 46705DA FR 46705 E FR46705 E FR 46705E
Authority
FR
France
Prior art keywords
cathode ray
ray lamps
lamps
cathode
ray
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.)
Electrical and Musical Industries Ltd
Original Assignee
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 Electrical and Musical Industries Ltd filed Critical Electrical and Musical Industries Ltd
Application granted granted Critical
Publication of FR46705E publication Critical patent/FR46705E/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
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
FR46705D 1934-11-19 1935-11-07 Improvements to cathode ray lamps Expired FR46705E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33294/34A GB447493A (en) 1934-11-19 1934-11-19 Improvements in and relating to modulating means for cathode ray tubes

Publications (1)

Publication Number Publication Date
FR46705E true FR46705E (en) 1936-08-10

Family

ID=10351051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR46705D Expired FR46705E (en) 1934-11-19 1935-11-07 Improvements to cathode ray lamps

Country Status (4)

Country Link
US (1) US2112378A (en)
DE (1) DE895200C (en)
FR (1) FR46705E (en)
GB (1) GB447493A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672568A (en) * 1951-03-27 1954-03-16 Int Standard Electric Corp Electron gun for cathode-ray tubes
US2597363A (en) * 1951-06-29 1952-05-20 Ibm Cathode-ray storage tube
US3374379A (en) * 1964-03-02 1968-03-19 Nippon Columbia Low second grid voltage electron gun
US4318027A (en) 1978-04-12 1982-03-02 Rca Corporation High potential, low magnification electron gun
EP0725972B1 (en) * 1994-08-25 1998-11-18 Koninklijke Philips Electronics N.V. Picture display device provided with an electron gun, and electron gun for use in such a device

Also Published As

Publication number Publication date
US2112378A (en) 1938-03-29
GB447493A (en) 1936-05-19
DE895200C (en) 1953-11-02

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