GB492843A - Improved device comprising a gas-filled electric discharge tube and material excitedto luminescence by the discharge - Google Patents

Improved device comprising a gas-filled electric discharge tube and material excitedto luminescence by the discharge

Info

Publication number
GB492843A
GB492843A GB23822/37A GB2382237A GB492843A GB 492843 A GB492843 A GB 492843A GB 23822/37 A GB23822/37 A GB 23822/37A GB 2382237 A GB2382237 A GB 2382237A GB 492843 A GB492843 A GB 492843A
Authority
GB
United Kingdom
Prior art keywords
gas
water
envelope
filled electric
excitedto
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
GB23822/37A
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.)
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 GB492843A publication Critical patent/GB492843A/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
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides

Abstract

492,843. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 31, 1937, No. 23822. Convention date, Sept. 3, 1936. [Class 39 (i)] [Also in Group XX] A gas- or vapour-filled electric discharge tube is surrounded by a closed bulb free from water and containing a luminescent sulphide layer which has been freed from water - soluble halides, as by repeated extraction with distilled water. As shown, in a tube known per se, consisting of a quartz container 1 having electrodes connected to wires 4, 5 which support it in an outer glass envelope 2, this envelope is coated internally with a layer of zinc sulphide purified as described. The container has a filling of rare gas, and also contains mercury at a pressure exceeding 5 atmospheres. The envelope 2 may be filled with an inert gas such as nitrogen after removing air and all traces of water.
GB23822/37A 1936-09-03 1937-08-31 Improved device comprising a gas-filled electric discharge tube and material excitedto luminescence by the discharge Expired GB492843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE492843X 1936-09-03

Publications (1)

Publication Number Publication Date
GB492843A true GB492843A (en) 1938-09-28

Family

ID=6544465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23822/37A Expired GB492843A (en) 1936-09-03 1937-08-31 Improved device comprising a gas-filled electric discharge tube and material excitedto luminescence by the discharge

Country Status (1)

Country Link
GB (1) GB492843A (en)

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