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GB2003315A - Fluorescent discharge lamps - Google Patents

Fluorescent discharge lamps

Info

Publication number
GB2003315A
GB2003315A GB7833805A GB7833805A GB2003315A GB 2003315 A GB2003315 A GB 2003315A GB 7833805 A GB7833805 A GB 7833805A GB 7833805 A GB7833805 A GB 7833805A GB 2003315 A GB2003315 A GB 2003315A
Authority
GB
United Kingdom
Prior art keywords
luminous flux
power
luminescent
excitation
luminescent material
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.)
Granted
Application number
GB7833805A
Other versions
GB2003315B (en
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19829052&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2003315(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2003315A publication Critical patent/GB2003315A/en
Application granted granted Critical
Publication of GB2003315B publication Critical patent/GB2003315B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • 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
    • C09K11/666—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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/7737—Phosphates
    • C09K11/7738—Phosphates with alkaline earth metals
    • C09K11/7739—Phosphates with alkaline earth metals with halogens
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/774—Borates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/778—Borates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7784—Chalcogenides

Landscapes

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

Abstract

In a low-pressure mercury vapour discharge lamp having a luminescent layer in which the power consumed is at least 500 W/m<2>, for satisfactory operation, the luminescent layer is so chosen as to comprise a luminescent material which has a luminous flux with 254nm excitation, which after the material has been subjected for 15 minutes to ultraviolet radiation consisting substantially of the wavelengths 185 and 254 nm, having a radiation density between 150 and 500 W/m<2> and having a ratio of 185 nm power to 254 nm power between 0.20 and 0.40, is not more than 5% lower than the initial luminous flux of the material at 254 nm excitation and measured under identical circumstances, and wherein the combination of cations in the luminescent material has an electro- negativity of not more than 1.4. Numerous examples of known luminescent material compositions, which are said to satisfy these criteria, which generally relate to maintenance of luminous flux and resistance to degrading by mercury, are given.
GB7833805A 1977-08-23 1978-08-18 Low-pressure mercury vapour discharge lamp Expired GB2003315B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7709263,A NL181470C (en) 1977-08-23 1977-08-23 LOW-PRESSURE MERCURY DISCHARGE LAMP.

Publications (2)

Publication Number Publication Date
GB2003315A true GB2003315A (en) 1979-03-07
GB2003315B GB2003315B (en) 1982-03-10

Family

ID=19829052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833805A Expired GB2003315B (en) 1977-08-23 1978-08-18 Low-pressure mercury vapour discharge lamp

Country Status (17)

Country Link
JP (2) JPS5442874A (en)
AR (1) AR222805A1 (en)
AT (1) AT360118B (en)
AU (1) AU523847B2 (en)
BE (1) BE869878A (en)
BR (1) BR7805401A (en)
CH (1) CH643088A5 (en)
DD (1) DD138387B5 (en)
DE (1) DE2835575C2 (en)
ES (1) ES472723A1 (en)
FR (1) FR2401518A1 (en)
GB (1) GB2003315B (en)
HU (1) HU181471B (en)
IN (1) IN150540B (en)
IT (1) IT1100876B (en)
MX (1) MX147423A (en)
NL (1) NL181470C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023068A1 (en) * 1979-07-23 1981-01-28 Koninklijke Philips Electronics N.V. Luminescent screen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181470C (en) * 1977-08-23 1987-08-17 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NL185479C (en) * 1979-04-03 1990-04-17 Philips Nv LOW PRESSURE GAS DISCHARGE LAMP.
NL7905162A (en) * 1979-07-03 1981-01-06 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NL184712C (en) * 1979-07-03 1989-10-02 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US4357559A (en) * 1980-03-17 1982-11-02 General Electric Company Fluorescent lamp utilizing phosphor combination
JPH0452930Y2 (en) * 1984-10-17 1992-12-11
SE457033B (en) * 1985-05-23 1988-11-21 Lumalampan Ab KOMPAKTLYSROER
JPH0455407Y2 (en) * 1986-12-18 1992-12-25
JP3171438B2 (en) * 1988-12-26 2001-05-28 株式会社東芝 Phosphor and fluorescent lamp
DE4408626C2 (en) * 1993-07-23 1996-08-01 Prolux Maschinenbau Gmbh Process for the production of phosphors for low-pressure mercury vapor discharge lamps
MY134305A (en) * 2001-04-20 2007-12-31 Nichia Corp Light emitting device
DE10152217A1 (en) * 2001-10-23 2003-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Fluorescent composition for low pressure discharge lamps
JP5084386B2 (en) * 2007-07-20 2012-11-28 株式会社東通研 Curing method of UV curable ink

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084100A5 (en) * 1970-03-03 1971-12-17 Matsushita Electronics Corp
US3679928A (en) * 1970-06-26 1972-07-25 Gen Electric High intensity far u.v. radiation source
US3778662A (en) * 1972-10-31 1973-12-11 Gen Electric High intensity fluorescent lamp radiating ionic radiation within the range of 1,600{14 2,300 a.u.
NL160869C (en) * 1972-11-03 Philips Nv LUMINESCENT SCREEN, AS WELL AS DISCHARGE LAMP AND KATHODE BEAM TUBE, FITTED WITH SUCH SCREEN.
NL7214860A (en) * 1972-11-03 1974-05-07
NL7216765A (en) * 1972-12-09 1974-06-11
NL164697C (en) * 1973-10-05 1981-01-15 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NL165605C (en) * 1974-03-15 1981-04-15 Philips Nv ELECTRIC GAS DISCHARGE LAMP.
NL181470C (en) * 1977-08-23 1987-08-17 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023068A1 (en) * 1979-07-23 1981-01-28 Koninklijke Philips Electronics N.V. Luminescent screen

Also Published As

Publication number Publication date
IN150540B (en) 1982-11-13
HU181471B (en) 1983-07-28
NL181470B (en) 1987-03-16
MX147423A (en) 1982-12-02
DE2835575A1 (en) 1979-03-01
NL181470C (en) 1987-08-17
JPH0345505B2 (en) 1991-07-11
BR7805401A (en) 1979-04-17
IT7826902A0 (en) 1978-08-21
DD138387B5 (en) 1994-07-14
CH643088A5 (en) 1984-05-15
JPS5442874A (en) 1979-04-05
DD138387A5 (en) 1979-10-24
AU3912178A (en) 1980-02-28
IT1100876B (en) 1985-09-28
JPS63102154A (en) 1988-05-07
AU523847B2 (en) 1982-08-19
ES472723A1 (en) 1979-02-16
AT360118B (en) 1980-12-29
DE2835575C2 (en) 1984-08-09
GB2003315B (en) 1982-03-10
ATA610178A (en) 1980-05-15
BE869878A (en) 1979-02-21
NL7709263A (en) 1979-02-27
FR2401518A1 (en) 1979-03-23
AR222805A1 (en) 1981-06-30
FR2401518B1 (en) 1983-04-29

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Legal Events

Date Code Title Description
711A Proceeding under section 117(1) patents act 1977
PE20 Patent expired after termination of 20 years

Effective date: 19980817