GB527893A - Improvements in cathode ray tubes comprising electrostatic deflecting means - Google Patents

Improvements in cathode ray tubes comprising electrostatic deflecting means

Info

Publication number
GB527893A
GB527893A GB1219339A GB1219339A GB527893A GB 527893 A GB527893 A GB 527893A GB 1219339 A GB1219339 A GB 1219339A GB 1219339 A GB1219339 A GB 1219339A GB 527893 A GB527893 A GB 527893A
Authority
GB
United Kingdom
Prior art keywords
pair
plate
projections
cathode
ray tubes
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
GB1219339A
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB527893A publication Critical patent/GB527893A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only

Abstract

527,893. Cathode-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 22, 1939, No. 12193. Convention date, April 25, 1938. [Class 39 (i)] In order to diminish the effect of one pair of deflecting plates in a cathode-ray tube on deflection produced by the other pair of plates one plate of a pair is provided on the edge nearest the other pair with two projections extending towards and overlapping the other plate of the pair and enclosing the ray. The projections 14, 15 are, as shown, preferably attached to a plate of the pair more remote from the cathode and their dimensions in the axial direction of the tube are small compared with those of the plates. When one plate 12 of the pair is at constant potential and the other, 13, at a varying potential, the projections should be on the plate 13. The projections may be in one piece with the plate, or welded thereto, or formed as clips.
GB1219339A 1938-04-25 1939-04-22 Improvements in cathode ray tubes comprising electrostatic deflecting means Expired GB527893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN0041898 1938-04-25

Publications (1)

Publication Number Publication Date
GB527893A true GB527893A (en) 1940-10-17

Family

ID=7348461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1219339A Expired GB527893A (en) 1938-04-25 1939-04-22 Improvements in cathode ray tubes comprising electrostatic deflecting means

Country Status (5)

Country Link
BE (1) BE433968A (en)
CH (1) CH213130A (en)
FR (1) FR853427A (en)
GB (1) GB527893A (en)
NL (1) NL58319C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734147A (en) * 1956-02-07 beckers
US5802763A (en) * 1996-04-01 1998-09-08 Applewood Seed Company Spent mushroom growth media as a growing media for plant sod mats

Also Published As

Publication number Publication date
CH213130A (en) 1941-01-15
BE433968A (en)
NL58319C (en)
FR853427A (en) 1940-03-19

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