GB778342A - Improvements in or relating to cathode-ray tubes for colour television - Google Patents

Improvements in or relating to cathode-ray tubes for colour television

Info

Publication number
GB778342A
GB778342A GB19840/55A GB1984055A GB778342A GB 778342 A GB778342 A GB 778342A GB 19840/55 A GB19840/55 A GB 19840/55A GB 1984055 A GB1984055 A GB 1984055A GB 778342 A GB778342 A GB 778342A
Authority
GB
United Kingdom
Prior art keywords
colour television
cathode
relating
ray tubes
colour
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
GB19840/55A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB778342A publication Critical patent/GB778342A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

778,342. Colour television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 8, 1955 [July 12, 1954], No. 19840/55. Class 39(1). The apertured plate electrode 8 on the cathode side of a multi-colour phosphor screen 7 of a colour television tube is made of soft magnetic material e.g. an alloy of Ni and Fe with a small quantity of Cu, Cr or Mo, and is formed with a skirt 9 so that by overlapping with an external sheath 10 the main part of the electron beam plate is screened from interference by external magnetic fields.
GB19840/55A 1954-07-12 1955-07-08 Improvements in or relating to cathode-ray tubes for colour television Expired GB778342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL330691X 1954-07-12

Publications (1)

Publication Number Publication Date
GB778342A true GB778342A (en) 1957-07-03

Family

ID=19784356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19840/55A Expired GB778342A (en) 1954-07-12 1955-07-08 Improvements in or relating to cathode-ray tubes for colour television

Country Status (6)

Country Link
US (1) US2890362A (en)
CH (1) CH330691A (en)
DE (1) DE955604C (en)
FR (1) FR1127338A (en)
GB (1) GB778342A (en)
NL (1) NL189142B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL225221A (en) * 1957-02-25
US2991381A (en) * 1959-01-07 1961-07-04 Rca Corp Shielded magnet-assembly for colorkinescopes, etc.
US3018401A (en) * 1959-03-05 1962-01-23 Westinghouse Electric Corp Color television apparatus
GB896123A (en) * 1959-11-05 1962-05-09 Gen Electric Co Ltd Improvements in or relating to cathode ray tubes
US3443138A (en) * 1966-11-08 1969-05-06 Nat Video Corp Magnetic shielding means for cathode ray tube
NL7515039A (en) * 1975-12-24 1977-06-28 Philips Nv CATHOD BEAM TUBE FOR DISPLAYING COLORED IMAGES.
US4556821A (en) * 1984-03-15 1985-12-03 Rca Corporation Color image display system having an improved external magnetic shield
US4854906A (en) * 1987-12-02 1989-08-08 Zenith Electronics Corporation Material, and assemblies for tensioned foil shadow masks
KR940011935B1 (en) * 1992-03-03 1994-12-27 삼성전관 주식회사 Shadow mask frame and inner shield assembling structure for color crt
KR100213772B1 (en) * 1996-10-25 1999-08-02 구자홍 Shadow mask of cathode-ray tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689388C (en) * 1934-07-30 1940-03-19 Lorenz Akt Ges C Arrangement for deflecting the cathode ray in Braun tubes
US2444221A (en) * 1942-09-25 1948-06-29 Invex Inc Television system
US2555850A (en) * 1948-01-28 1951-06-05 Nicholas D Glyptis Ion trap
US2659026A (en) * 1951-04-12 1953-11-10 Rca Corp Cathode-ray tube of the masked target variety
US2728008A (en) * 1953-04-21 1955-12-20 Rca Corp Color-kinescopes, etc.
US2690518A (en) * 1953-06-01 1954-09-28 Columbia Broadcasting Syst Inc Color picture tube
US2762942A (en) * 1954-12-22 1956-09-11 American Brass Co Apertured mask

Also Published As

Publication number Publication date
FR1127338A (en) 1956-12-13
US2890362A (en) 1959-06-09
CH330691A (en) 1958-06-15
DE955604C (en) 1957-01-03
NL189142B (en)

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