GB712301A - Improvements in or relating to luminescent materials - Google Patents

Improvements in or relating to luminescent materials

Info

Publication number
GB712301A
GB712301A GB12715/52A GB1271552A GB712301A GB 712301 A GB712301 A GB 712301A GB 12715/52 A GB12715/52 A GB 12715/52A GB 1271552 A GB1271552 A GB 1271552A GB 712301 A GB712301 A GB 712301A
Authority
GB
United Kingdom
Prior art keywords
halophosphate
magnesium
fluorogermanate
tungstate
zinc silicate
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
GB12715/52A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB712301A publication Critical patent/GB712301A/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
    • C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
    • 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
    • C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
    • C09K11/72—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates
    • C09K11/73—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates also containing alkaline earth metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

712,301. Luminescent materials. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 20, 1952 [July 11, 1951], No. 12715/52. Class 39(1) A luminescent material for producing red radiation in low pressure discharge lamps comprises a blend of a halophosphate and a magnesium fluorogermanate. Examples are described having the following proportions by weight: first example- 3500‹K halophosphate 66.0, magnesium fluorogermanate 28.3, magnesium tungstate 3.7, zinc silicate 2.0; second example-3500‹K halophosphate 86.8, magnesium fluorogermanate 9.7, magnesium tungstate 3.5; third example-2500‹K halophosphate 60.8, magnesium fluorogermanate 26.1, magnesium tungstate 1.8, zinc silicate 11.3; fourth example-2500‹K halophosphate 84.1, magnesium fluorogermanate 9.4, magnesium tungstate 3.7, zinc silicate 2.8. The general formula for the magnesium fluorogermanate used is x Mg O. y Mg F,. Ge O 2 : z Mn where x is between and including 2 and 5.99, y is between and including 1.9 and 0.01, with the sum of x and y not exceeding 6, and z is between and including 0.001 and 0.1. The preferred composition is 3.5 MgO . 0.5 MgF 2 . GeO 2 : 0.01 Mn. As an example of a 3500‹K halophosphate, the preparation of a manganese activated calcium strontium fluoro-chloro-phosphate, and as an example of a 2500‹K halophosphate, the preparation of a manganese and antimony activated calcium chloro-fluoro-phosphate are described.
GB12715/52A 1951-07-11 1952-05-20 Improvements in or relating to luminescent materials Expired GB712301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US712301XA 1951-07-11 1951-07-11

Publications (1)

Publication Number Publication Date
GB712301A true GB712301A (en) 1954-07-21

Family

ID=22100055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12715/52A Expired GB712301A (en) 1951-07-11 1952-05-20 Improvements in or relating to luminescent materials

Country Status (1)

Country Link
GB (1) GB712301A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948132A (en) * 2010-09-16 2011-01-19 青岛正杰实业有限公司 Simple process for preparing magnesium fluorogermanate: manganese red fluorescent powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948132A (en) * 2010-09-16 2011-01-19 青岛正杰实业有限公司 Simple process for preparing magnesium fluorogermanate: manganese red fluorescent powder

Similar Documents

Publication Publication Date Title
GB712301A (en) Improvements in or relating to luminescent materials
US2601032A (en) Manganese activated zinc barium silicate phosphor
GB1125180A (en) Improvements in calcium halophosphate phosphors
US2865862A (en) Magnesium antimonate phosphor
ES201713A1 (en) Improved cadmium halophosphate phosphors
GB469776A (en) Improvements in or relating to combinations of electric discharge devices and materials excited to luminescence by the electric discharge
GB466503A (en) Improvements in or relating to electric lamps comprising luminescent materials
GB558213A (en) Improvements in and relating to fluorescent materials
GB746065A (en) Luminescent material, particularly for electric discharge lamps and method for its manufacture
GB491224A (en) Improvements in fluorescent materials for electric discharge tubes
GB721596A (en) Improvements in or relating to luminescent materials
GB727392A (en) Improvements in or relating to fluorescent lamps
GB746273A (en) Improvements in luminescent materials
GB683585A (en) Improvements in and relating to non-phosphorescent calcium silicate phosphor
GB758940A (en) Improvements relating to luminescent materials or phosphors
GB578195A (en) Improvements in luminescent materials
GB612085A (en) Improvements in or relating to electric discharge tubes comprising luminescent material
GB789237A (en) Improvements in luminescent materials
GB645922A (en) Improvements in luminescent materials
GB666163A (en) Improvements in or relating to phosphors
GB690483A (en) Improvements in or relating to phosphors
GB673637A (en) Improvements relating to fluorescent materials
GB652313A (en) Improvements relating to the production of luminescent materials
GB1533172A (en) Copper-and-zinc-activated strontium sulphide phosphors
GB609937A (en) Improvements relating to luminescent materials