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GB842256A - Improvements in and relating to red-luminescent substances - Google Patents

Improvements in and relating to red-luminescent substances

Info

Publication number
GB842256A
GB842256A GB42062/58A GB4206258A GB842256A GB 842256 A GB842256 A GB 842256A GB 42062/58 A GB42062/58 A GB 42062/58A GB 4206258 A GB4206258 A GB 4206258A GB 842256 A GB842256 A GB 842256A
Authority
GB
United Kingdom
Prior art keywords
germanate
red
relating
luminescent
luminescent substances
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
GB42062/58A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB842256A publication Critical patent/GB842256A/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
    • C09K11/0827—Halogenides
    • C09K11/0833—Halogenides with alkali or alkaline earth metals
    • 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
    • C09K11/0838—Aluminates; Silicates
    • 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
    • C09K11/0844—Germanates

Landscapes

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

Abstract

842,256. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 30, 1958 [Jan. 2, 1958], No. 42062/58. Class 39(1). A red luminescent (>6000 Š) substance is a magnesium fluoro-germanate activated with manganese dioxide in which the germanium is partly replaced by silica and one or both of titanium and stannous oxides. It has the formula a. MgOb. HgF2 c.GeO2 p.SiO2 q.TLO2 r.SnO2 z.MnO2 where 3# a # 3À9; a + b = 4; c + p + q + r = 1; 0À10 # p + q + r # 0À40; 0À01 # p # 0À36 0 # q, r # 0À36, 0À1 # p/q+ r # 9À0 and 0À005 # z # 0À020. The constituents are heated in air at a temperature of 1,000- 1200‹C for between 1 and 10 hours. The preferred composition differs from above in that 0À03 # p # 0À28; 0 # q, r # 0À28 0À4 # p/q + r # 2À5. Examples are given utilising TiO 2 and SnO 2 both together and separately and the luminescence of the compound is compared with that of the original germanate. The material may be coated on the outer bulb of a high pressure mercury vapour lamp or on a reflector. Specification 701,033 is referred to.
GB42062/58A 1958-01-02 1958-12-30 Improvements in and relating to red-luminescent substances Expired GB842256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL842256X 1958-01-02

Publications (1)

Publication Number Publication Date
GB842256A true GB842256A (en) 1960-07-27

Family

ID=19845043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42062/58A Expired GB842256A (en) 1958-01-02 1958-12-30 Improvements in and relating to red-luminescent substances

Country Status (1)

Country Link
GB (1) GB842256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255120A (en) * 1961-01-05 1966-06-07 Saint Gobain Heat and infra-red responsive glass composition and method of making it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255120A (en) * 1961-01-05 1966-06-07 Saint Gobain Heat and infra-red responsive glass composition and method of making it

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