EP0173859A1 - Lampe fluorescente - Google Patents

Lampe fluorescente Download PDF

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Publication number
EP0173859A1
EP0173859A1 EP85109564A EP85109564A EP0173859A1 EP 0173859 A1 EP0173859 A1 EP 0173859A1 EP 85109564 A EP85109564 A EP 85109564A EP 85109564 A EP85109564 A EP 85109564A EP 0173859 A1 EP0173859 A1 EP 0173859A1
Authority
EP
European Patent Office
Prior art keywords
phosphor
range
fluorescent lamp
lamp according
amount
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
EP85109564A
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German (de)
English (en)
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EP0173859B1 (fr
Inventor
Friedrich Wolff
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0173859A1 publication Critical patent/EP0173859A1/fr
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Publication of EP0173859B1 publication Critical patent/EP0173859B1/fr
Expired legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a fluorescent lamp whose emission spectrum is both in the range of visible light and in the UV range.
  • Fluorescent lamps for the visible range are also known, which are provided with a three-band phosphor, the emission spectrum of which has distinct bands in the red, green and blue ranges.
  • the sensitivity of the human eye to light is particularly high there, so that such a lamp appears to be very bright.
  • the object of the invention is to provide a fluorescent lamp of the generic type which is similar to sunlight and which, despite the presence of UV radiation, is perceived as being sufficiently bright.
  • the emission spectrum has bands in the red, green and blue range, a fourth pronounced band in the long-wave UVA range with a smaller energy maximum than the bands in the visible range and also a section with considerably lower energy, which is extends over the short-wave UVA to the long-wave UVB range and ends at about 300 nm.
  • the spectral radiation flow in the UV range is matched in terms of its wavelength and strength to the function curves of the biological effect.
  • Irradiation of a person in the long-wave UVA range leads to a repair of possible cell damage and to a recovery of the eyes through regeneration of the visual pigment (rhodopsin) which is bleached out during the visual process.
  • the corresponding functional curve extends approximately between 340 and 420 nm and has its maximum at approximately 380 nm.
  • Irradiation of humans with long-wave UVB radiation and the basic region of short-wave UVA radiation leads to the formation of vitamin D3 and the associated calcium absorption, to increase the performance of muscular and circulatory organs as well as to activate the metabolism and the associated increase in oxygen in the blood.
  • the function curve ends at 320 nm and decreases sharply towards the end.
  • the exact amount of the third phosphor is so small that the energy of the long-wave Radiation emitted in the UVB range even after several hours! Irradiation, for example eight hours of irradiation, does not result in an erythema-effective dose on human skin. This can be achieved because very low radiation doses are sufficient for the desired photobiological functions and, on the other hand, the maximum of the functional curve essential for erythema formation is below 300 nm. The emission spectrum should therefore only begin at around 300 nm, it being immaterial whether this lower limit is determined by the emission behavior of the phosphor or by the filter effect of the glass jacket. If the phosphor emits below this value, the energy loss is insignificant.
  • the amount of the phosphor responsible for UV radiation can be kept relatively small.
  • the reduction in radiation power in the range of visible light is correspondingly small.
  • the fluorescent lamp has a considerably greater brightness for humans than known sunlight-like ones, despite the addition of the phosphor responsible for UV radiation Fluorescent lamps with a largely uniform, continuous spectrum.
  • the energy maximum of the fourth band is between 370 and 390 nm. Then this energy maximum corresponds approximately to the maximum of the function curve for cell repair and rhodopsin regeneration.
  • a mixture of fluorescent materials is recommended, which consists of; a three-band phosphor for the visible range, a second phosphor that emits in the long-wave UVA range, and a third phosphor whose radiation ranges from about 300 nm to at least 320 nm. These phosphors are each matched to specific spectral sensitivity and functional ranges that are predetermined in humans, so that the greatest possible effects are achieved with the smallest amount of phosphor.
  • the second phosphor emits between about 350 and 400 nm and the third phosphor up to above 350 nm. Then the two spectra overlap with the result that the function values for the photo repair of the cell and for eye recovery, which begins at approximately 340 nm and has its maximum at approximately 380 nm, are also used over their initial range.
  • the amount of the first phosphor should make up at least 80% of the total mixture amount and the second phosphor should be provided in larger amounts than the third phosphor. This results in a very bright lamp with a pronounced UV effect.
  • the second phosphor, strontium fluoroborate, activated with europium is particularly advantageous.
  • the third phosphor is preferably cerium strontium magnesium aluminate.
  • the amount of the second phosphor is 5 to 10% of the total Amount of mixture.
  • the amount of the third phosphor is 1 to 4% of the total amount of the mixture.
  • the fluorescent lamp 1 in Fig. 1 has a tubular glass jacket 2 and at both ends a socket 3 and 4, which carry contact pins on the outside and an electrode on the inside.
  • the inside of the glass jacket 2 is provided with a phosphor layer 5.
  • the interior 6 is filled with mercury vapor.
  • a low-pressure discharge results in a dominant emission at 254 nm.
  • the phosphor in layer 5 absorbs these rays in the UVC range and fluoresces in longer-wave ranges.
  • the glass jacket 2 consists of filter glass, which is able to filter radiation below 300 nm practically completely.
  • the phosphor is mixed in such a way that the emission spectrum S according to FIG. 2 results.
  • the emission spectrum S In the area of visible light one can see three distinct bands 7, 8 and 9 in the red, green and blue region as well as a fourth distinct band 10 in the long wavy UVA range with a maximum at about 380 nm.
  • the energy maximum of this fourth band 10 is considerably lower than that of the first three bands 7 to 9.
  • the emission spectrum also extends with a section 11 of considerably lower energy over the short-wave UVA range up to in the long-wave UVB range, where it ends at 300 nm.
  • the three bands 7, 8 and 9 are matched to the sensation of brightness of the human eye, the band 10 to the function curve of the eye recovery and the photo repair of the cell.
  • Fig. 3 shows that this spectrum S is achieved by a phosphor mixture, which is composed as follows: a first three-band phosphor, which can also consist of a mixture, has a spectral distribution 12, which begins at about 390 nm and over almost spans the entire range of the visible spectrum. A second phosphor, which emits approximately between 350 and 400 nm with a maximum at 380 nm, has the spectral distribution 13. A third phosphor, which emits approximately between 300 and 370 nm, has the spectral distribution 14. As a result of the superimposition, this results Spectrum S. The majority of the phosphor, namely 86 to 94%, is formed by the three-band phosphor or the three-band phosphor mixture. The second phosphor comprises 5 to 10% and the third phosphor 1 to 4% of the total mixture. This leads to the gradation of the energies shown.
  • a phosphor mixture which is composed as follows: a first three-band phosphor, which can also consist of a
  • the first phosphor consisted of the three-band phosphor of a commercially available fluorescent lamp, the second phosphor made of strontium fluoroborate, activated with europium, and the third phosphor made of cerium strontium magnesium aluminate.
  • luminescent materials instead of these luminescent materials, other luminescent materials can also be selected, provided that they result in the desired emission spectrum.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)
  • Radiation-Therapy Devices (AREA)
EP85109564A 1984-08-29 1985-07-30 Lampe fluorescente Expired EP0173859B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3431692 1984-08-29
DE19843431692 DE3431692A1 (de) 1984-08-29 1984-08-29 Leuchtstofflampe

Publications (2)

Publication Number Publication Date
EP0173859A1 true EP0173859A1 (fr) 1986-03-12
EP0173859B1 EP0173859B1 (fr) 1987-07-15

Family

ID=6244159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109564A Expired EP0173859B1 (fr) 1984-08-29 1985-07-30 Lampe fluorescente

Country Status (5)

Country Link
US (1) US4683379A (fr)
EP (1) EP0173859B1 (fr)
CA (1) CA1253191A (fr)
DE (2) DE3431692A1 (fr)
NO (1) NO852864L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602809A (nl) * 1986-09-23 1988-04-18 Wolff Friedrich Fluorescentielamp om toe te passen voor het bruinen en voor de gezondheidszorg.
EP1970423A1 (fr) * 2007-03-13 2008-09-17 LightTech Lámpatechnológia Kft. Lampe fluorescente pour stimuler la production de prévitamine D3
WO2009124634A1 (fr) * 2008-04-08 2009-10-15 Litec-Lll Gmbh Lampe à décharge à basse pression pour influencer la production de mélatonine propre au corps

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729711A1 (de) * 1987-09-04 1989-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Quecksilberniederdruckentladungslampe zur uv-bestrahlung
US4940918A (en) * 1989-07-24 1990-07-10 Gte Products Corporation Fluorescent lamp for liquid crystal backlighting
US5122710A (en) * 1989-11-28 1992-06-16 Duro-Test Corporation Rare earth phosphor blends for fluorescent lamp using four to five phosphors
US5166527A (en) * 1991-12-09 1992-11-24 Puroflow Incorporated Ultraviolet lamp for use in water purifiers
US5670786A (en) * 1995-07-18 1997-09-23 Uvp, Inc. Multiple wavelength light source
US5683437A (en) 1995-10-17 1997-11-04 Doty; John Stephen Tanning bed
DE19641216A1 (de) 1996-09-26 1998-04-02 Wilkens Heinrike Dr Med Bestrahlungsvorrichtung, insbesondere zur kosmetischen, diagnostischen und therapeutischen Lichtanwendung
US5905268A (en) * 1997-04-21 1999-05-18 Spectronics Corporation Inspection lamp with thin-film dichroic filter
DE19730006A1 (de) * 1997-07-12 1999-01-14 Walter Dipl Chem Dr Rer N Tews Kompakte Energiesparlampe mit verbesserter Farbwiedergabe
US5945790A (en) * 1997-11-17 1999-08-31 Schaefer; Raymond B. Surface discharge lamp
GB2375603B (en) * 2001-05-17 2005-08-10 Jenact Ltd Control system for microwave powered ultraviolet light sources
US7124651B2 (en) * 2004-08-09 2006-10-24 3M Innovative Properties Company Method of accelerated testing of illuminated device components
HU0700510D0 (en) 2007-08-03 2007-10-29 Lighttech Lampatechnologiai Kf Uv tanning lamp with controlled irradiance
WO2010015980A1 (fr) * 2008-08-07 2010-02-11 Koninklijke Philips Electronics N.V. Lampe luminescente pour éclairer les oiseaux
US8647373B1 (en) * 2010-02-11 2014-02-11 James G. Shepherd Phototherapy methods using fluorescent UV light
EP2573799A1 (fr) * 2011-09-21 2013-03-27 SRLight ApS Appareil pour promouvoir la production de vitamine D dans un organisme vivant
CN105470069B (zh) * 2015-10-23 2017-10-17 东台市天源荧光材料有限公司 一种uvb太阳光补钙荧光灯的制备方法
US11717698B1 (en) 2020-04-23 2023-08-08 Hugh McGrath, Jr. Therapy, treatment, and process for photodynamic inactivation of COVID-19

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657141A (en) * 1970-08-12 1972-04-18 Sylvania Electric Prod Europium-samarium coactivated strontium fluoroborate phosphor
US3992646A (en) * 1972-08-04 1976-11-16 Westinghouse Electric Corporation Plant growth type fluorescent lamp
DE2841545A1 (de) * 1977-10-03 1979-04-12 Philips Nv Leuchtendes erdalkaliphosphat
GB1577854A (en) * 1976-03-25 1980-10-29 Westinghouse Electric Corp Metal-halide discharge lamp
DE3022117A1 (de) * 1979-06-15 1981-01-08 Gte Prod Corp Erdalkali-substituierte cerium- magnesium-aluminat-phosphore

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128065C2 (de) * 1970-12-10 1983-08-18 Westinghouse Electric Corp., 15222 Pittsburgh, Pa. Leuchtstoffschicht für eine elektrische Lichtquelle zur Erzeugung von weißem Licht sowie Verwendung dieser Leuchtstoffschicht
US3836477A (en) * 1972-11-15 1974-09-17 Gte Sylvania Inc Strontium aluminate phosphor activated by cerium and manganese
NL7316494A (nl) * 1973-12-03 1975-06-05 Philips Nv Kwikdampontladingslamp voor kleurenreproduktie volgens elektrofotografische processen.
US4007394A (en) * 1975-04-07 1977-02-08 General Electric Company Alkali metal alkaline earth metal sulfate phosphor activated with cerium and terbium and lamp containing same
DE2537855A1 (de) * 1975-08-26 1977-03-10 Friedrich Wolff Geraet zur flaechenhaften uv-bestrahlung
AT375019B (de) * 1975-08-26 1984-06-25 Wolff System Service Gmbh Geraet zur uv-bestrahlung groesserer bereiche der koerperoberflaeche einer person
DE2707920C2 (de) * 1977-02-24 1986-03-06 Wolff System Service Gmbh, 6000 Frankfurt Gerät zur UV-Photobehandlung der Psoriasis und ähnlicher Krankheiten
DE2609273A1 (de) * 1976-03-05 1977-09-08 Mutzhas Maximilian F Bestrahlungseinrichtung mit ultraviolett-strahlenquelle
DE2707894A1 (de) * 1977-02-24 1978-08-31 Kosmedico Vertrieb Kosmetische Speziallampe fuer die selektive uv-photobehandlung
DE2826091A1 (de) * 1978-06-14 1980-01-03 Patra Patent Treuhand Quecksilberdampf-niederdruckentladungslampe fuer bestrahlungszwecke
US4287554A (en) * 1978-07-03 1981-09-01 Friedrich Wolff Radiation apparatus
DE2844967A1 (de) * 1978-10-16 1980-04-30 Wolff System Service Gmbh Stabfoermige leuchtstofflampe fuer ein bestrahlungsgeraet
US4251750A (en) * 1979-03-28 1981-02-17 Gte Products Corporation Fluorescent lamp for use in liquid analysis
US4499403A (en) * 1979-09-06 1985-02-12 General Electric Company Skin tanning fluorescent lamp construction utilizing a phosphor combination
US4371810A (en) * 1980-05-05 1983-02-01 Westinghouse Electric Corp. Plant growth type fluorescent lamp
DE3121689C2 (de) * 1981-06-01 1983-07-07 Friedrich 6000 Frankfurt Wolff Leuchtstofflampe, deren Strahlungsmaximum im UVA-Bereich liegt
US4420709A (en) * 1981-11-09 1983-12-13 Gte Products Corporation Fluorescent lamp employing means for controlling emission of short wavelength ultraviolet radiation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657141A (en) * 1970-08-12 1972-04-18 Sylvania Electric Prod Europium-samarium coactivated strontium fluoroborate phosphor
US3992646A (en) * 1972-08-04 1976-11-16 Westinghouse Electric Corporation Plant growth type fluorescent lamp
GB1577854A (en) * 1976-03-25 1980-10-29 Westinghouse Electric Corp Metal-halide discharge lamp
DE2841545A1 (de) * 1977-10-03 1979-04-12 Philips Nv Leuchtendes erdalkaliphosphat
DE3022117A1 (de) * 1979-06-15 1981-01-08 Gte Prod Corp Erdalkali-substituierte cerium- magnesium-aluminat-phosphore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602809A (nl) * 1986-09-23 1988-04-18 Wolff Friedrich Fluorescentielamp om toe te passen voor het bruinen en voor de gezondheidszorg.
EP1970423A1 (fr) * 2007-03-13 2008-09-17 LightTech Lámpatechnológia Kft. Lampe fluorescente pour stimuler la production de prévitamine D3
WO2009124634A1 (fr) * 2008-04-08 2009-10-15 Litec-Lll Gmbh Lampe à décharge à basse pression pour influencer la production de mélatonine propre au corps

Also Published As

Publication number Publication date
US4683379A (en) 1987-07-28
DE3431692A1 (de) 1986-03-06
NO852864L (no) 1986-03-03
EP0173859B1 (fr) 1987-07-15
DE3560345D1 (en) 1987-08-20
CA1253191A (fr) 1989-04-25

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