GB669383A - Improvements in or relating to electric discharge tubes with focused beams - Google Patents

Improvements in or relating to electric discharge tubes with focused beams

Info

Publication number
GB669383A
GB669383A GB28913/46A GB2891346A GB669383A GB 669383 A GB669383 A GB 669383A GB 28913/46 A GB28913/46 A GB 28913/46A GB 2891346 A GB2891346 A GB 2891346A GB 669383 A GB669383 A GB 669383A
Authority
GB
United Kingdom
Prior art keywords
mirror
electric discharge
screen
construction shown
curvature
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
GB28913/46A
Other languages
English (en)
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB669383A publication Critical patent/GB669383A/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
    • H01J29/60—Mirrors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D1/00—Sinking shafts
    • E21D1/10—Preparation of the ground
    • E21D1/16—Preparation of the ground by petrification
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
GB28913/46A 1943-05-07 1946-09-27 Improvements in or relating to electric discharge tubes with focused beams Expired GB669383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL240902X 1943-05-07

Publications (1)

Publication Number Publication Date
GB669383A true GB669383A (en) 1952-04-02

Family

ID=19780533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28913/46A Expired GB669383A (en) 1943-05-07 1946-09-27 Improvements in or relating to electric discharge tubes with focused beams

Country Status (6)

Country Link
BE (1) BE455669A (enrdf_load_stackoverflow)
CH (1) CH240902A (enrdf_load_stackoverflow)
DE (1) DE852424C (enrdf_load_stackoverflow)
FR (1) FR904112A (enrdf_load_stackoverflow)
GB (1) GB669383A (enrdf_load_stackoverflow)
NL (1) NL72026C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217505B (de) * 1960-02-15 1966-05-26 Telefunken Patent Elektronenstrahlroehre mit einem grossflaechigen Leuchtschirm und einer Elektronenspiegelanordnung

Also Published As

Publication number Publication date
NL72026C (enrdf_load_stackoverflow)
BE455669A (enrdf_load_stackoverflow)
FR904112A (fr) 1945-10-26
CH240902A (de) 1946-01-31
DE852424C (de) 1952-10-16

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