EP0143419A2 - Lampe à décharge à basse pression compacte - Google Patents

Lampe à décharge à basse pression compacte Download PDF

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Publication number
EP0143419A2
EP0143419A2 EP84113977A EP84113977A EP0143419A2 EP 0143419 A2 EP0143419 A2 EP 0143419A2 EP 84113977 A EP84113977 A EP 84113977A EP 84113977 A EP84113977 A EP 84113977A EP 0143419 A2 EP0143419 A2 EP 0143419A2
Authority
EP
European Patent Office
Prior art keywords
sections
discharge vessel
longitudinal
longitudinal tube
discharge lamp
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
EP84113977A
Other languages
German (de)
English (en)
Other versions
EP0143419B1 (fr
EP0143419A3 (en
Inventor
Lutz Klein
Ernst Panofski
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6759263&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0143419(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0143419A2 publication Critical patent/EP0143419A2/fr
Publication of EP0143419A3 publication Critical patent/EP0143419A3/de
Application granted granted Critical
Publication of EP0143419B1 publication Critical patent/EP0143419B1/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
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Definitions

  • the invention relates to a compact low-pressure discharge lamp with a sinuous tubular discharge vessel made of glass, composed of several parts, two electrodes which are melted tight at the ends of the discharge vessel, a filling made of mercury and at least one noble gas, and a fluorescent coating on the inner wall of the discharge vessel.
  • the sealed ends of the discharge vessel can be provided with a base attached on one side, which enables the lamp to be used in a suitable luminaire.
  • Low-pressure mercury vapor discharge lamps are known from DE-OS 30 11 382 and US Pat. No. 3,501,662, in which a plurality of straight tubular parts arranged parallel to one another are each connected to a discharge bulb by coupling connections acting transversely to these parts.
  • the coupling connections run at a certain distance from the respective ends of the tubular parts, so as to create the cold spots necessary for adjusting the mercury vapor pressure (DE-OS 30 11 382).
  • a tortuous discharge vessel can indeed be produced by lining up the tube parts and connecting them by means of the coupling connections. But to create one Large number of coupling connections (exactly one less than straight pipe parts) to merge with the pipe parts.
  • the individual straight pipe parts When merging, the individual straight pipe parts have to be aligned very precisely so that - apart from the aesthetic impression - they can have the required dimensional accuracy for the subsequent base.
  • the cold spots on the tube ends when the lamp is on result in dark areas that are annoying.
  • DE-OS 31 12 878 includes a mercury vapor low-pressure discharge lamp with a one-piece or multiple narrowly curved discharge vessel, the diameter of the discharge vessel in the tube bends being larger than in the middle of the straight tube parts.
  • Such a design creates the necessary cold spots for setting the optimal mercury vapor pressure without creating dark areas.
  • the uniform coating with phosphor can only take place after the bending process. This presents practically no difficulties in the case of a single-arc discharge vessel, but is extremely complicated and expensive in the case of a multiple-arc discharge vessel.
  • the aim of the invention is to provide a compact low-pressure discharge lamp, the winding discharge vessel of which can be created by assembling individual parts that are easy to manufacture.
  • the manufacturing and coating process should be as simple and inexpensive as possible, and at the same time a high dimensional accuracy of the discharge vessel should be achieved.
  • each section consists of a U-shaped tube with two longitudinal tube sections and a substantially perpendicular transverse tube section, the free ends of the longitudinal tube sections being sealed, and the individual sections are arranged so that the longitudinal pipe sections run parallel to each other and, the sealed pipe ends are all directed towards the same side, and neighboring sections are connected to each other by a transverse fusion forming a passage near the sealed ends of two longitudinal pipe sections so that a simply coherent Discharge path is formed.
  • the construction of the discharge vessel from parts that have already been bent and coated beforehand substantially simplifies the manufacturing process.
  • the number of transverse fusions is reduced to less than half compared to a method of production from straight tubes - as listed in DE-OS 30 11 382.
  • the base is simplified due to the greater dimensional stability in the manufacture of the discharge vessel.
  • the U-shaped sections have, as already in DE-OS 31 12 878 described, by the transverse pipe sections running essentially perpendicular to the longitudinal pipe sections in the pipe bends to a larger diameter to create "cold spots". Since no further "cold spots" are required in the discharge vessel, it is possible to place the transverse fusions very close to the sealed ends of the longitudinal tube sections, so that these fusions can possibly be covered by a base covering.
  • the manufacturing process can be further simplified by sealing the longitudinal tube sections of each section instead of sealing them by means of a pinch seal.
  • the discharge vessel consists of two sections which are connected with a cross fusion.
  • the longitudinal tube sections of the two sections lie in each case in mutually parallel planes, the surface enveloping the longitudinal tube sections forming a cylinder with an essentially square cross section.
  • this lamp has extremely compact dimensions.
  • the discharge vessel is also possible to construct the discharge vessel from more than two sections, the longitudinal tube sections of the different sections lying in planes that run parallel to one another.
  • the sections do not have to form a common escape, but can also be arranged offset to one another.
  • the discharge vessel is composed of several sections, the longitudinal tube sections of all sections lying in one plane. In this way a flat compact lamp is created.
  • discharge vessel shapes can be obtained by arranging the sections in a ring.
  • the sections are aligned so that the surface enveloping the longitudinal tube sections forms a cylinder with a polygonal cross section.
  • the discharge vessel 1 is essentially composed of the two sections 2, 3, which consist of a U-shaped glass tube of 12 mm outer diameter and each have two parallel tube sections of 105 mm length running at a distance of 3 mm from one another.
  • the corners of the U-shaped arches of the sections 2, 3 are blown out, so that the cross tube sections 4, 5 run essentially perpendicular to the longitudinal tube sections.
  • the sections 2, 3 are sealed by crushing 6, 7, 8, 9, wherein a crushing 7, 9 of each section 2, 3 carries an electrode holder 10, 11.
  • Both sections 2, 3 are arranged one behind the other so that the two longitudinal tube sections of the different sections 2, 3 lie in mutually parallel planes and the bruises 7, 9 with the electrode holders 10, 11 are on the same side.
  • a transverse fusion 13 forming a passage 12 near the two bruises 6, 8 without electrode holders, the two sections 2, 3 are connected to one another in such a way that a simply connected discharge path is formed.
  • the compact low-pressure discharge lamp can be used with one Be screw or a snap base, the raised edge of which simultaneously covers the transverse fusion 13.
  • the lamp listed above When operated on a series choke with a cos of 0.34, the lamp listed above generates a luminous flux of 850 lm at a lamp voltage of 97 V, a lamp current of 150 mA and a power consumption of 11.5 W.
  • the three sections 14, 15, 16 of the discharge vessel 17 are also arranged so that the two longitudinal tube sections of the different sections 14, 15, 16 lie in parallel planes.
  • the sections 14, 15, 16 do not form a uniform escape line here, but are laterally offset from one another and connected by transverse fusions 18, 19 to form a uniform discharge path.
  • FIG. 5 shows a further embodiment of the lamp according to the invention.
  • the discharge vessel 20 also consists of three sections 21, 22, 23, which, however, are arranged next to one another here, the longitudinal tube sections of all sections 21, 22, 23 lying in one plane.
  • the sections 21, 22, 23 are connected by transverse fuses 24, 25, so that a simply connected, flat discharge path is formed.
  • FIG. 6 shows a discharge vessel 26 for a compact low-pressure discharge lamp, in which the sections 27, 28, 29 are arranged so that the planes in which the longitudinal tube sections of each section 27, 28, 29 lie form an equilateral triangle on average.
  • the sections 27, 28, 29 are also connected here by transverse fusions 30, 31 to form a simply connected discharge vessel.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
EP84113977A 1983-11-25 1984-11-19 Lampe à décharge à basse pression compacte Expired EP0143419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8333920U 1983-11-25
DE19838333920U DE8333920U1 (de) 1983-11-25 1983-11-25 Kompakte niederdruckentladungslampe

Publications (3)

Publication Number Publication Date
EP0143419A2 true EP0143419A2 (fr) 1985-06-05
EP0143419A3 EP0143419A3 (en) 1986-05-07
EP0143419B1 EP0143419B1 (fr) 1989-06-21

Family

ID=6759263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113977A Expired EP0143419B1 (fr) 1983-11-25 1984-11-19 Lampe à décharge à basse pression compacte

Country Status (4)

Country Link
EP (1) EP0143419B1 (fr)
JP (3) JPS60124345A (fr)
DE (2) DE8333920U1 (fr)
HK (1) HK91693A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210877A1 (fr) * 1985-06-27 1987-02-04 Elene S.A. Lampe à tube fluorescent
US4794301A (en) * 1986-08-19 1988-12-27 Kabushiki Kaisha Toshiba Fluorescent lamp having a convoluted discharge passage and fluorescent lamp apparatus incorporating the same
GB2182199B (en) * 1985-09-28 1990-03-21 Toshiba Kk Fluorescent lamp device
EP0284576A3 (fr) * 1987-03-23 1990-11-22 Lumalampan Aktiebolag Tube à décharge à gaz compact et une méthode pour sa fabrication
FR2742919A1 (fr) * 1995-12-21 1997-06-27 Samsung Display Devices Co Ltd Lampe fluorescente compacte et procede pour fabriquer une telle lampe
EP0800202A3 (fr) * 1996-04-03 1997-12-10 Heraeus Noblelight GmbH Radiateur optique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741566C2 (de) * 1987-12-08 1996-07-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kompakte Niederdruckentladungslampe
NL8501340A (nl) * 1985-05-10 1986-12-01 Philips Nv Lagedrukkwikdampontladingslamp.
JPH07114111B2 (ja) * 1985-10-25 1995-12-06 東芝ライテック株式会社 低圧金属蒸気放電灯の製造方法
USD304241S (en) 1986-08-08 1989-10-24 Kabushiki Kaisha Toshiba Fluorescent lamp tube
USD303157S (en) 1986-08-08 1989-08-29 Kabushiki Kaisha Toshiba Fluorescent lamp tube
USD313606S (en) 1988-01-11 1991-01-08 Abbott Laboratories Ultraviolet bulb
JPH083997B2 (ja) * 1988-12-12 1996-01-17 東芝ライテック株式会社 低圧水銀蒸気放電灯

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL185479C (nl) * 1979-04-03 1990-04-17 Philips Nv Lagedrukgasontladingslamp.
DE3112878A1 (de) * 1981-03-31 1982-10-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Quecksilberdampf-niederdruckentladungslampe und verfahren zur herstellung
JPS58112238A (ja) * 1981-12-25 1983-07-04 Toshiba Corp けい光ランプ

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210877A1 (fr) * 1985-06-27 1987-02-04 Elene S.A. Lampe à tube fluorescent
FR2590725A1 (fr) * 1985-06-27 1987-05-29 Elf Aquitaine Lampe a tube fluorescent
GB2182199B (en) * 1985-09-28 1990-03-21 Toshiba Kk Fluorescent lamp device
US4794301A (en) * 1986-08-19 1988-12-27 Kabushiki Kaisha Toshiba Fluorescent lamp having a convoluted discharge passage and fluorescent lamp apparatus incorporating the same
EP0284576A3 (fr) * 1987-03-23 1990-11-22 Lumalampan Aktiebolag Tube à décharge à gaz compact et une méthode pour sa fabrication
FR2742919A1 (fr) * 1995-12-21 1997-06-27 Samsung Display Devices Co Ltd Lampe fluorescente compacte et procede pour fabriquer une telle lampe
NL1004554C2 (nl) * 1995-12-21 1997-12-10 Samsung Display Devices Co Ltd Compacte fluorescerende lamp en een werkwijze voor het vervaardigen daarvan.
US5896003A (en) * 1995-12-21 1999-04-20 Samsung Display Devices Co., Ltd. Compact fluorescent lamp and method for manufacturing the same
EP0800202A3 (fr) * 1996-04-03 1997-12-10 Heraeus Noblelight GmbH Radiateur optique

Also Published As

Publication number Publication date
EP0143419B1 (fr) 1989-06-21
DE8333920U1 (de) 1985-05-02
DE3478777D1 (en) 1989-07-27
JP2586587Y2 (ja) 1998-12-09
JPH0623155U (ja) 1994-03-25
JPH0970U (ja) 1997-01-28
JPS60124345A (ja) 1985-07-03
HK91693A (en) 1993-09-10
EP0143419A3 (en) 1986-05-07

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