GB491208A - Improvements in or relating to electric gas-discharge tubes - Google Patents

Improvements in or relating to electric gas-discharge tubes

Info

Publication number
GB491208A
GB491208A GB11474/38A GB1147438A GB491208A GB 491208 A GB491208 A GB 491208A GB 11474/38 A GB11474/38 A GB 11474/38A GB 1147438 A GB1147438 A GB 1147438A GB 491208 A GB491208 A GB 491208A
Authority
GB
United Kingdom
Prior art keywords
glass
luminescent
discharge tubes
electric gas
relating
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
GB11474/38A
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 GB491208A publication Critical patent/GB491208A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

491,208. Discharge lamps; luminescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 14, 1938, No. 11474. Convention date, April 19, 1937. Drawings to Specification. [Class 39 (i)] [Also in Group XX] A screen for electric gas discharge tubes comprises two layers of luminescent glass with an interposed translucent layer of a material which is transparent to the ,exciting radiation. As embodied in a lamp the screen forms the envelope or a sleeve surrounding it. The two layers of luminescent glass may be the same such as uranium glass or glass having different luminescent properties may be used.
GB11474/38A 1937-04-19 1938-04-14 Improvements in or relating to electric gas-discharge tubes Expired GB491208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE491208X 1937-04-19

Publications (1)

Publication Number Publication Date
GB491208A true GB491208A (en) 1938-08-29

Family

ID=6544239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11474/38A Expired GB491208A (en) 1937-04-19 1938-04-14 Improvements in or relating to electric gas-discharge tubes

Country Status (1)

Country Link
GB (1) GB491208A (en)

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