WO1999049496A1 - Lampe fluorescente - Google Patents

Lampe fluorescente Download PDF

Info

Publication number
WO1999049496A1
WO1999049496A1 PCT/JP1999/001238 JP9901238W WO9949496A1 WO 1999049496 A1 WO1999049496 A1 WO 1999049496A1 JP 9901238 W JP9901238 W JP 9901238W WO 9949496 A1 WO9949496 A1 WO 9949496A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
glass tube
fluorescent
discharge
fluorescent lamp
Prior art date
Application number
PCT/JP1999/001238
Other languages
English (en)
Japanese (ja)
Inventor
Kazuaki Ohkubo
Makoto Inohara
Tadashi Yano
Teruaki Shigeta
Original Assignee
Matsushita Electric Industrial Co., 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 Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to KR1020007010395A priority Critical patent/KR20010042052A/ko
Priority to EP99907923A priority patent/EP1063680A4/fr
Publication of WO1999049496A1 publication Critical patent/WO1999049496A1/fr

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
    • H01J61/025—Associated optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge
    • 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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury

Definitions

  • the present invention relates to a fluorescent lamp capable of improving lamp efficiency.
  • the challenge for fluorescent lamps used for lighting is to improve their lamp efficiency.
  • the efficiency of fluorescent lamps has been improved by improving the quantum efficiency of phosphors and the development of high-frequency lighting technology, but it is also reaching its limits.
  • FIG. 3 shows the results of measuring the distribution of 254 ⁇ m radiation in the tube axis direction using a GL 20 germicidal lamp.
  • the luminance distribution of the fluorescent lamp FL20SSEXD is shown. In this way, near the left and right electrodes of a fluorescent lamp (low-pressure mercury discharge lamp), a large amount of 254 nm radiation is emitted beyond the positive column of the discharge.
  • the radiation at the electrode part of the 254 nm radiation generated at the electrode part, the radiation toward the tube end is absorbed at the tube end and contributes to the fluorescence. I haven't.
  • the fluorescent light emitted from the phosphor applied to the glass tube wall is not absorbed by the lamp near the tube end, but is also absorbed in the direction toward the tube end. The inventor has found such a problem.
  • Improvement of the luminous flux can be expected by efficiently extracting the 254 nm radiation or fluorescent light that does not contribute to the luminous flux from the lamp as the luminous flux of the lamp.
  • the current use of fluorescent lamps is very popular and the demand for replacing them is large, so that there is no need to change the lamp appearance, electrode socket specifications, and electrical characteristics.
  • An object of the present invention is to provide a fluorescent lamp that can solve such a problem.
  • a glass tube in which a phosphor is applied to an inner wall and metal vapor and a rare gas are sealed, discharge electrodes provided at both ends of the glass tube, and the discharge electrodes are supported.
  • the reflection plate reflects, toward the inside of the glass tube, a component of radiation and light directed toward the end of the tube, out of the radiation generated by the discharge generated in the glass tube and the light excited and emitted by the phosphor by the emission.
  • a fluorescent lamp characterized in that:
  • the present invention provides a glass tube in which a phosphor is coated on an inner wall and metal vapor and a rare gas are sealed, discharge electrodes provided at both ends of the glass tube, and a support for the discharge electrode, An electrode lead for supplying electric power to the discharge electrode from the above, and a fluorescent plate provided between the discharge electrode and a tube end sealing portion of a tube end of the glass tube,
  • the fluorescent plate emits a component of the radiation generated by the discharge generated in the glass tube toward a tube end, and further emits a component of the light generated in the glass tube toward the tube end to the glass tube.
  • the present invention provides a glass tube in which a phosphor is coated on an inner wall and metal vapor and a rare gas are sealed, discharge electrodes provided at both ends of the glass tube, and a support for the discharge electrode, And an electrode lead for supplying power to the discharge electrode from
  • a fluorescent lamp characterized in that a portion of the tube end sealing portion of the tube end of the glass tube facing the discharge electrode forms a reflection surface capable of reflecting the radiation and / or light. It is.
  • the present invention provides a glass tube in which a phosphor is coated on an inner wall and metal vapor and a rare gas are sealed, discharge electrodes provided at both ends of the glass tube, and a support for the discharge electrode, And an electrode lead for supplying power to the discharge electrode from
  • a fluorescent lamp is characterized in that a fluorescent material is applied to a portion of the tube end sealing portion of the tube end of the glass tube facing the discharge electrode side.
  • the luminous flux or the radiant flux of the fluorescent lamp can be improved with the same electric characteristics as those of the related art by the above means, and the improvement of the lamp efficiency can be realized.
  • FIG. 1 is a configuration diagram near the electrodes of the fluorescent lamp according to the first embodiment of the present invention.
  • FIG. 2 is a configuration diagram near the electrodes of the fluorescent lamp according to the second embodiment of the present invention.
  • FIG. 3 is a luminance distribution diagram of the GL2 20 and the fluorescent lamp in the tube axis direction.
  • FIG. 4 is a configuration diagram near an electrode of a fluorescent lamp according to a fourth embodiment of the present invention.
  • FIG. 5 is a process chart for explaining a method for manufacturing a fluorescent lamp according to the fourth embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing various forms of a portion facing the discharge electrode side in the embodiment of the present invention.
  • FIG. 7 is a configuration diagram of a conventional fluorescent lamp.
  • FIG. 1 shows a configuration diagram of Embodiment 1 of the present invention.
  • both tube ends 5 (only the left side is shown in FIG. 1) of a glass tube 2 coated with a phosphor 1 have a sealing portion 50 protruding inward for manufacturing.
  • An electrode lead 4 is provided from the outside to the inside of the tube through the sealing portion 50.
  • the discharge electrode 3 is attached to the inner end of the electrode lead 4.
  • the electrode lead 4 supports the discharge electrode 3 and supplies power from the outside of the tube to the electrode 3 inside the tube.
  • a diffusion reflector 6 is provided on the electrode lead 4 between the sealing portion 50 and the discharge electrode 3.
  • a metal lamp and a rare gas are sealed in the interior to form a fluorescent lamp.
  • the diffuse reflection plate 6 has no conductivity such as glass plate or ceramic plate, and the material capable of withstanding the high temperatures at the time of the fluorescent lamp manufacturing, high subjected ultraviolet wavelength region from B a S 0 4 T i O which visible It is composed of a material coated with reflectivity.
  • the light reflected from the inside of the glass tube 2 enhances the luminous flux or radiant flux.
  • FIG. 2 shows a configuration of Embodiment 2 of the present invention.
  • both tube ends 5 (only the left side is shown in FIG. 1) of the glass tube 2 coated with the phosphor 1 have a sealing portion 50 protruding to the inside for manufacturing.
  • An electrode lead 4 is provided from the outside to the inside of the tube through the sealing portion 50.
  • the discharge electrode 3 is attached to the inner end of the electrode lead 4.
  • the electrode lead 4 supports the discharge electrode 3 and supplies power from the outside of the tube to the electrode 3 inside the tube.
  • a fluorescent plate 7 is provided on the electrode lead 4 between the sealing portion 50 and the discharge electrode 3. A metal lamp and a rare gas are sealed inside to construct a fluorescent lamp.
  • the fluorescent plate 7 is formed by applying or attaching a fluorescent substance to a material that does not have conductivity, such as a glass plate or a ceramic plate, and that can withstand the high temperature at the time of manufacturing the fluorescent lamp.
  • the fluorescent plate 7 is illuminated by ultraviolet radiation, such as 254 nm and 185 nm, emitted from the discharge of the discharge electrode 3 in the direction of the tube end 5 to excite the phosphor. Also, the phosphor 1 coated on the tube wall of the glass tube 2 emits light due to the radiation generated by the discharge generated in the glass tube 2, and a component of the light emission toward the tube end 5 is separated by the fluorescent plate 7. The light is reflected toward the inside of the glass tube to increase the luminous flux or radiant flux.
  • ultraviolet radiation such as 254 nm and 185 nm
  • a lamp was manufactured in which the fluorescent plate 7 coated with the same fluorescent material for EXD was attached to the electrode lead 4 of the fluorescent lamp of FL20SSEXD. At this time, the fluorescent plate 7 was fixed at a position of 10 to 15 mm from the discharge electrode 3 toward the tube end 5.
  • the lamp with the fluorescent plate 7 and the lamp without the fluorescent plate were manufactured simultaneously, and their characteristics were compared at lighting power of 18 W.
  • the lamp voltage and tube current were almost the same, and the luminous flux was low. An improvement of about 2.3% was obtained.
  • Embodiment 3 of the present invention will be described.
  • the configuration of the third embodiment is similar to that of the second embodiment.
  • the phosphor 1 applied to the glass tube 2 and the phosphor applied to the phosphor plate 7 are intentionally different from each other.
  • the FL20S SEXD fluorescent lamp described in the second embodiment is a three-wavelength emission fluorescent lamp, in which three or more kinds of phosphors are mixed and applied. Therefore, the color of the entire lamp can be easily adjusted by changing the phosphor of the fluorescent plate 7 in various ways with respect to the fluorescent lamp having the same mixing ratio.
  • FIG. 4 is a fourth embodiment of the present invention.
  • a portion 50b of the tube end sealing portion 50 of the tube end 5 facing the discharge electrode 3 has a disk shape. This disc-shaped portion 50b is larger than the thickness of the main body 50a of the sealing portion 50.
  • the size of the disc-shaped portion 50 b is substantially the same as the size of the cross section inside the glass tube 2.
  • This portion 5 Ob makes it possible to improve the radiant flux and the luminous flux as described in the first and second embodiments.
  • a member for forming the pipe end 5 is made. That is, a glass tube 20 having both open ends is prepared (a). Both ends of the glass tube 20 are conically enlarged and formed (b). A thin glass tube 21 and an electrode lead material 22 are introduced into the glass tube 20 (c). And the glass tube 20 On the other side, a flat mold 23 (a through hole in the center, in which the tip of the electrode lead material 22 escapes) is abutted, and the center of the glass tube 20 is While pressing the mold 24, the center of the glass tube 20 is squeezed and fused to the thin glass tube 21.
  • the tip of the thin glass tube 21 is sealed, and air is fed from the other end, so that a hole 25 is formed in the lateral portion.
  • a disk-shaped surface 26 is formed at the portion in contact with the mold 23. Then, a discharge electrode is attached to the tip of the electrode lead 22.
  • the member for forming the tube end portion 5 formed in this way is fitted and fused to the end of the glass tube of another prepared fluorescent lamp with the discharge electrode 3 inside.
  • the fluorescent lamp according to the fourth embodiment is completed.
  • the shape of the portion of the present invention that faces the reflection plate, the fluorescent plate, and the discharge electrode is not limited to the shapes described in the embodiments, but may be various shapes as shown in FIG. It is only necessary to prevent radiation toward the part 5 and light components from being directed toward the tube end 5 and absorbed.
  • FIG. 6A shows a type in which a large number of projections are formed on the surface
  • FIG. 6B shows a type in which a large number of irregularities are formed
  • FIG. 6C shows a type in which a concave shape is formed.
  • the luminous flux of the fluorescent lamp can be improved with the same electrical characteristics as before, and the lamp efficiency can be improved.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

L'invention concerne une lampe fluorescente caractérisée en ce qu'elle comprend un tube en verre dont la paroi intérieure est revêtue de phosphore et lequel est rempli d'une vapeur de métal et d'un gaz rare, des électrodes de décharge ménagées aux deux extrémités du tube, des tiges d'électrodes portant les électrodes de décharge et adaptées pour fournir du courant électrique aux électrodes de décharge, ainsi que des plaques réfléchissantes disposées chacune entre une partie d'étanchéité terminale à une extrémité du tube et électrode de décharge, et caractérisées en ce que les plaques réfléchissantes réfléchissent une partie du rayonnement produit par la décharge provoquée dans le tube et une partie de la lumière émise par le phosphore excité par le rayonnement, les deux parties se déplaçant vers les extrémités du tube.
PCT/JP1999/001238 1998-03-20 1999-03-15 Lampe fluorescente WO1999049496A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020007010395A KR20010042052A (ko) 1998-03-20 1999-03-15 형광램프
EP99907923A EP1063680A4 (fr) 1998-03-20 1999-03-15 Lampe fluorescente

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7215698 1998-03-20
JP10/72156 1998-03-20

Publications (1)

Publication Number Publication Date
WO1999049496A1 true WO1999049496A1 (fr) 1999-09-30

Family

ID=13481123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/001238 WO1999049496A1 (fr) 1998-03-20 1999-03-15 Lampe fluorescente

Country Status (4)

Country Link
EP (1) EP1063680A4 (fr)
KR (1) KR20010042052A (fr)
CN (1) CN1293820A (fr)
WO (1) WO1999049496A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104048B2 (en) 2006-08-04 2012-01-24 Apple Inc. Browsing or searching user interfaces and other aspects
US8185839B2 (en) 2007-06-09 2012-05-22 Apple Inc. Browsing or searching user interfaces and other aspects
US8201096B2 (en) 2007-06-09 2012-06-12 Apple Inc. Browsing or searching user interfaces and other aspects
US8516038B2 (en) 2008-06-06 2013-08-20 Apple Inc. Browsing or searching user interfaces and other aspects
US8607166B2 (en) 2008-06-06 2013-12-10 Apple Inc. Browsing or searching user interfaces and other aspects
US9058337B2 (en) 2007-10-22 2015-06-16 Apple Inc. Previewing user interfaces and other aspects

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100595933B1 (ko) * 2002-08-28 2006-07-03 주식회사 우영 발광 램프와 이를 이용한 면광원 장치
DE102011006700A1 (de) * 2011-04-04 2012-10-04 Osram Ag Entladungslampe, insbesondere Quecksilber-Niederdruckentladungslampe, sowie Verfahren zum Herstellen einer Entladungslampe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217059U (fr) * 1985-07-16 1987-01-31
JPS62177858A (ja) * 1986-01-31 1987-08-04 Toshiba Electric Equip Corp 放電発光素子
JPH0721991A (ja) * 1993-06-30 1995-01-24 Noritake Co Ltd 放電管

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692347A (en) * 1951-03-28 1954-10-19 Westinghouse Electric Corp Metalized stems for low-pressure discharge tubes
GB863467A (en) * 1957-05-21 1961-03-22 Gen Electric Co Ltd Improvements in or relating to low pressure electric discharge lamps
US3215882A (en) * 1962-12-31 1965-11-02 Sylvania Electric Prod Fluorescent lamp with noble metal amalgamated electrode
US6222318B1 (en) * 1998-03-09 2001-04-24 U.S. Philips Corporation Low-pressure mercury vapor discharge lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217059U (fr) * 1985-07-16 1987-01-31
JPS62177858A (ja) * 1986-01-31 1987-08-04 Toshiba Electric Equip Corp 放電発光素子
JPH0721991A (ja) * 1993-06-30 1995-01-24 Noritake Co Ltd 放電管

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1063680A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104048B2 (en) 2006-08-04 2012-01-24 Apple Inc. Browsing or searching user interfaces and other aspects
US8185839B2 (en) 2007-06-09 2012-05-22 Apple Inc. Browsing or searching user interfaces and other aspects
US8201096B2 (en) 2007-06-09 2012-06-12 Apple Inc. Browsing or searching user interfaces and other aspects
US9058337B2 (en) 2007-10-22 2015-06-16 Apple Inc. Previewing user interfaces and other aspects
US8516038B2 (en) 2008-06-06 2013-08-20 Apple Inc. Browsing or searching user interfaces and other aspects
US8607166B2 (en) 2008-06-06 2013-12-10 Apple Inc. Browsing or searching user interfaces and other aspects

Also Published As

Publication number Publication date
EP1063680A1 (fr) 2000-12-27
KR20010042052A (ko) 2001-05-25
EP1063680A4 (fr) 2003-01-29
CN1293820A (zh) 2001-05-02

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