GB505355A - Improvements in or relating to cathode ray deflection - Google Patents

Improvements in or relating to cathode ray deflection

Info

Publication number
GB505355A
GB505355A GB21716/37A GB2171637A GB505355A GB 505355 A GB505355 A GB 505355A GB 21716/37 A GB21716/37 A GB 21716/37A GB 2171637 A GB2171637 A GB 2171637A GB 505355 A GB505355 A GB 505355A
Authority
GB
United Kingdom
Prior art keywords
voltage
deflecting
focusing
potentiometer
aug
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
GB21716/37A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB505355A publication Critical patent/GB505355A/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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/085—Aggregate or filler materials therefor; Coloured reflecting or luminescent additives therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/182—Aggregate or filler materials, except those according to E01C7/26
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
    • E01C7/351—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively hydraulical binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively hydraulic binders
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Television Scanning (AREA)

Abstract

505,355. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Aug. 6, 1937, No. 21716. Convention date, Aug. 12, 1936. [Classes 39 (i) and 40 (iii)] To maintain sharpness of the image point when the ray is deflected widely a correcting voltage of parabolic wave form is applied to one 13 of two electrodes 5, 13 forming a. lens for focusing the beam on the screen; the voltage is obtained from the saw-tooth, deflecting voltages by integrating condensers 11, 11<1> connected to the deflecting plates 3, 3<1> through resistances 10, 10<1>. The electrode 13 receives a steady bias from the potentiometer 17. The correcting voltage supplied from the potentiometer 18 may be. amplified and the voltage to be integrated may be taken off a winding 14a on the relaxation oscillation generator 14 for the deflecting voltage. With electromagnetic focusing the correcting voltage is supplied to the focusing coil.
GB21716/37A 1936-08-12 1937-08-06 Improvements in or relating to cathode ray deflection Expired GB505355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200818X 1936-08-12

Publications (1)

Publication Number Publication Date
GB505355A true GB505355A (en) 1939-05-08

Family

ID=5763019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21716/37A Expired GB505355A (en) 1936-08-12 1937-08-06 Improvements in or relating to cathode ray deflection

Country Status (4)

Country Link
US (1) US2227020A (en)
CH (1) CH200818A (en)
FR (1) FR825482A (en)
GB (1) GB505355A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951385C (en) * 1950-12-10 1956-10-25 Zeiss Carl Fa Device for correcting the curvature of the image field on electron-optical devices

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749070C (en) * 1939-07-27 1954-03-01 Telefunken Gmbh Circuit arrangement for generating a deflection-dependent magnetic post-concentration
GB609845A (en) * 1941-07-19 1948-10-07 Philips Nv Improvements in or relating to circuits for electric discharge tubes
US2572861A (en) * 1947-06-03 1951-10-30 Sylvania Electric Prod Deflection system for cathode-ray tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951385C (en) * 1950-12-10 1956-10-25 Zeiss Carl Fa Device for correcting the curvature of the image field on electron-optical devices

Also Published As

Publication number Publication date
CH200818A (en) 1938-10-31
US2227020A (en) 1940-12-31
FR825482A (en) 1938-03-03

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