GB985514A - Front-projection cathode ray tube - Google Patents

Front-projection cathode ray tube

Info

Publication number
GB985514A
GB985514A GB1427961A GB1427961A GB985514A GB 985514 A GB985514 A GB 985514A GB 1427961 A GB1427961 A GB 1427961A GB 1427961 A GB1427961 A GB 1427961A GB 985514 A GB985514 A GB 985514A
Authority
GB
United Kingdom
Prior art keywords
rim
envelope
glass
tube
plane
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
GB1427961A
Inventor
Peter Gordon Lea
Reginald John Buck
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.)
Rank Bush Murphy Ltd
Original Assignee
Rank Bush Murphy 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 Rank Bush Murphy Ltd filed Critical Rank Bush Murphy Ltd
Priority to GB1427961A priority Critical patent/GB985514A/en
Publication of GB985514A publication Critical patent/GB985514A/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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/861—Vessels or containers characterised by the form or the structure thereof

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

985,514. Cathode-ray tubes. RANK-BUSH MURPHY Ltd. April 18, 1962 [April 20, 1961], No. 14279/61. Heading H1D. A front-projection cathode-ray tube comprises a metal closure member 5 sealed to the body of the envelope 3 of the tube by a rim 6 lying in a plane parallel to the margin of an aperture in the tube envelope and dished so that a planar area of its inner surface which carries a luminescent screen 7 is displaced from the plane of the rim. In a particular example, the glass of the envelope was a lead glass, the metal closure member a nickel-chromium-iron alloy, and the two components sealed by a suitable sealing glass having a matching coefficient of thermal expansion. The displaced planar area of the metal enclosure member may lie in a plane inclined to that of the rim so that the normal at the point of intersection of the neck axis 2 has an angle of incidence upon a planar optical window 4 which differs substantially from zero, as described in Specification 985,513.
GB1427961A 1961-04-20 1961-04-20 Front-projection cathode ray tube Expired GB985514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1427961A GB985514A (en) 1961-04-20 1961-04-20 Front-projection cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1427961A GB985514A (en) 1961-04-20 1961-04-20 Front-projection cathode ray tube

Publications (1)

Publication Number Publication Date
GB985514A true GB985514A (en) 1965-03-10

Family

ID=10038288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1427961A Expired GB985514A (en) 1961-04-20 1961-04-20 Front-projection cathode ray tube

Country Status (1)

Country Link
GB (1) GB985514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133211A (en) * 1982-12-08 1984-07-18 Hitachi Ltd CRT display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133211A (en) * 1982-12-08 1984-07-18 Hitachi Ltd CRT display device

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