GB447202A - Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge - Google Patents

Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge

Info

Publication number
GB447202A
GB447202A GB3323234A GB3323234A GB447202A GB 447202 A GB447202 A GB 447202A GB 3323234 A GB3323234 A GB 3323234A GB 3323234 A GB3323234 A GB 3323234A GB 447202 A GB447202 A GB 447202A
Authority
GB
United Kingdom
Prior art keywords
lamp
electric discharge
group
luminescent material
discharge lamps
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
GB3323234A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB3323234A priority Critical patent/GB447202A/en
Publication of GB447202A publication Critical patent/GB447202A/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
    • 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
    • C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon

Landscapes

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

Abstract

447,202. Luminescent material in electric discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Nov. 19, 1934, No. 33232. [Class 39 (i)] [See also Group XX] Luminescent material consisting mainly of zinc silicate for use in a lamp, such as a mercuryvapour lamp which may contain also a rare gas in order to yield approximately whitelight, is subjected to the usual heat treatment, and thereafter ground preferably to a grainsize of about 1Á. to 5Á. The silicate may contain manganese in the proportion 0À1 to 0À5 per cent. The material may be deposited on the walls of the lamp, or on a screen inside or outside the lamp with the aid of a binder such as glycerine, boric acid, or water glass. If a thin layer which transmits the light from the lamp is used, the thickness of the layer may be adjusted to obtain various shades of daylight. Specifications 391,887; and 410,159, [Group XX], are referred to.
GB3323234A 1934-11-19 1934-11-19 Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge Expired GB447202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3323234A GB447202A (en) 1934-11-19 1934-11-19 Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3323234A GB447202A (en) 1934-11-19 1934-11-19 Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge

Publications (1)

Publication Number Publication Date
GB447202A true GB447202A (en) 1936-05-14

Family

ID=10350253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3323234A Expired GB447202A (en) 1934-11-19 1934-11-19 Improvements in or relating to materials for electric discharge lamps adapted to be excited to iuminescence by the electric discharge

Country Status (1)

Country Link
GB (1) GB447202A (en)

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