EP0697136B1 - Kompakte leuchtstofflampe - Google Patents

Kompakte leuchtstofflampe Download PDF

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Publication number
EP0697136B1
EP0697136B1 EP94913017A EP94913017A EP0697136B1 EP 0697136 B1 EP0697136 B1 EP 0697136B1 EP 94913017 A EP94913017 A EP 94913017A EP 94913017 A EP94913017 A EP 94913017A EP 0697136 B1 EP0697136 B1 EP 0697136B1
Authority
EP
European Patent Office
Prior art keywords
reflector
fluorescent lamp
compact fluorescent
discharge vessel
lamp according
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 - Lifetime
Application number
EP94913017A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0697136A1 (de
Inventor
Günter Franck
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
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0697136A1 publication Critical patent/EP0697136A1/de
Application granted granted Critical
Publication of EP0697136B1 publication Critical patent/EP0697136B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/0095—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of U-shaped tubular light sources, e.g. compact fluorescent tubes
    • 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
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers
    • H01J61/307—Flat vessels or containers with folded elongated discharge path
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • 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

Definitions

  • the invention relates to a compact fluorescent lamp.
  • the lamp according to the invention is an improved version of a compact fluorescent lamp, in particular a reflector lamp, which can be used as an energy-saving alternative to the general-purpose incandescent lamp in ceilings and pendant lights.
  • compact fluorescent lamps such as are described, for example, in patent EP 0 143 419, are operated almost exclusively in a suspended position in ceilings and pendant lights. This means that the U-shaped tube parts that form the discharge vessel of the compact fluorescent lamp are aligned vertically.
  • These compact fluorescent lamps deliver a high vertical illuminance in a hanging operating position, i.e. high illuminance for vertical surfaces, e.g. for walls, but only a relatively low illuminance for horizontal surfaces, e.g. Table surfaces and floors. This can lead to the table and floor being inadequately illuminated by compact fluorescent lamps which are used in a suspended operating position in pendant lights or ceiling lights.
  • the high vertical light intensity of the discharge vessel causes severe glare to the viewer when the luminaire is viewed.
  • the international design IR-DM / 007715 discloses a compact fluorescent lamp with a rotationally symmetrical, funnel-shaped aluminum reflector in which the lamp is held axially.
  • This compact fluorescent lamp provided with a reflector provides high horizontal illuminance, but is unsuitable for ceilings and pendant lights due to its large overall length.
  • the overall length of a compact 15 W fluorescent lamp with reflector is 152 mm and the overall length of a compact 20 W fluorescent lamp with reflector is 186 mm.
  • the length of a 60W general-purpose incandescent lamp is only 105 mm for comparison.
  • DE-OS 31 06 721 describes a pressed glass lamp designed as a compact fluorescent lamp.
  • this lamp has a rotationally symmetrical, funnel-shaped housing in which a ballast is enclosed and which has a screw base.
  • the discharge vessel consists of two pressed glass parts that are gas-tightly connected to each other by means of a glass enamel.
  • a zigzag-shaped pressed glass part arranged inside the discharge vessel divides the discharge space and forms a winding discharge path that runs perpendicular to the lamp axis.
  • the German utility model DE-U 9014804 describes a compact fluorescent lamp for outdoor applications.
  • This lamp has a closed, waterproof housing to protect the lamp from the weather.
  • the housing preferably consists of a pressed glass bulb, which is designed as a parabolic reflector.
  • the electronic ballast for the compact fluorescent lamp is located in the neck area of the reflector.
  • the discharge vessel of the fluorescent lamp is formed by two interconnected, U-shaped glass tubes. These two U-shaped glass tubes are arranged one behind the other in two parallel planes in such a way that the double-U-shaped discharge vessel formed by them is aligned perpendicular to the reflector axis.
  • the discharge vessel of this lamp has an unfavorable shape.
  • the glass tube parts facing the reflector neck contribute only little to the illuminance because they are shadowed by the glass tube parts which face the reflector opening.
  • the patent US 4,282,563 discloses a compact fluorescent lamp with an annular discharge vessel and a rotationally symmetrical housing, which is equipped with a screw base.
  • the ring-shaped discharge vessel is arranged in a plane perpendicular to the housing axis.
  • the upper half of the annular discharge vessel is covered by the housing, while the lower half of the annular discharge vessel defines a comparatively small, circular disk-shaped luminous area.
  • the tube sections of the discharge vessel which run perpendicular to the reflector axis, together with the reflector, produce a horizontal illuminance which is improved by a factor of 4 compared to conventional compact fluorescent lamps and low glare.
  • the discharge vessel advantageously consists of several U-shaped glass tubes which are arranged next to one another in a common plane perpendicular to the reflector axis. As a result, these glass tubes, in particular their legs, form a flat discharge vessel which acts as a surface radiator and which enables the lamp of the invention to have a short overall length.
  • U-shaped or meandering glass tubes are formed from a rod-shaped, cylindrical glass tube, which in turn was melted directly from the glass furnace.
  • the manufacturing technique which has been tried and tested in rod-shaped fluorescent lamps can be used to manufacture the lamps according to the invention will. There is no need to resort to the more complex pressed glass technology.
  • the electronic ballast integrated in the connection part of the housing and the screw base attached to it allow the lamp according to the invention to be used in ceilings and pendant lights which were originally designed for general-purpose incandescent lamps.
  • the maximum overall length of the lamp according to the invention is only 118 mm and thus only exceeds the length of a 60 W general-purpose incandescent lamp by 13 mm.
  • Ventilation slots in the reflector body in combination with the unlocked light outlet opening of the reflector, allow the discharge vessel to be adequately cooled so that an optimal operating temperature for the light yield can be set.
  • the light exit opening of the reflector is advantageously delimited by an annular cover which covers the connection part in which the discharge vessel is held and which also further reduces the glare effect of the lamp according to the invention.
  • the horizontal illuminance of the lamp can be increased by a reflective coating on the inner wall of the reflector.
  • a ballast integrated in the lamp was dispensed with.
  • This embodiment is intended for use in luminaires which in turn already have a built-in electronic or conventional ballast for operating fluorescent lamps, or else are intended for use with an adapter in which a ballast is integrated.
  • the lamp has a housing 1 made of plastic with a rotationally symmetrical reflector la and a connecting part 1b, which is equipped with a screw base 2.
  • the reflector 1a attached to the connecting part is funnel-shaped towards the light exit opening 1c.
  • the discharge vessel 3 of the compact fluorescent lamp is formed by two gas-tightly closed U-shaped glass tubes 30, 31, which are arranged side by side in a common plane perpendicular to the reflector axis within the reflector la.
  • the interiors of the glass tubes 30, 31 communicate via a hollow connecting web 3a, so that a single coherent discharge space is created (FIG. 2).
  • a circular segment-shaped receiving device 4 which extends to the reflector bottom and in which the free legs 30a, 30b, 31b, 31a of the glass tubes 30, 31 are fixed.
  • the outer legs 30a, 31a of the U-shaped glass tubes 30, 31 are each equipped with a gas-tight melted electrode (not shown), which are electrically connected via the receiving device 4 to the electronic ballast accommodated in the connection part 1b.
  • Two holding clips 7 fastened to the reflector wall additionally fix the U-shaped glass tubes 30, 31 at their bent ends.
  • the light exit opening 1c of the reflector la is covered by a transparent, i.e. translucent, but not transparent, circular cover 5 limited.
  • the reflector 1a Near the ground, the reflector 1a has a plurality of ventilation slots 6 arranged in a ring, which, in combination with the unlocked light outlet opening of the reflector, allow sufficient air circulation for cooling the lamp.
  • the reflector base is formed by a slightly conical tapered disc that has been coated with aluminum to improve reflection. The tip of this disc faces the discharge vessel 3.
  • the 11 W version of this lamp has an overall length (measured axially) of 114 mm and a maximum outside diameter of 108 mm, while the otherwise identical 15 W version of this lamp according to the invention has a length of 118 mm (in the axial direction) and a maximum outside diameter of 128 mm.
  • FIG. 3 shows a side view of the compact fluorescent lamp according to the invention according to a second embodiment.
  • This second embodiment differs from the first example explained above by the base 2 'and in that the lamp does not have an integrated ballast.
  • the reflector 1a ', the ventilation slots 6', the annular cover 5 ', the discharge vessel and the receiving device, however, are identical to the corresponding parts of the first game personssbei.
  • FIG. 2 thus also shows a top view of the light exit opening of the lamp according to the second exemplary embodiment.
  • This lamp is intended for use in luminaires that have a built-in ballast or for use with an adapter in which a ballast is integrated.
  • the lamp base 2 ' is designed as a G 24d (for operation on a conventional ballast) or as a G 24q base (for operation on an electronic ballast).
  • the discharge vessel of the lamp according to the invention can consist of more than two, e.g. consist of three U-shaped glass tubes.
  • the U-shaped glass tubes can also form a discharge vessel with a plurality of separate discharge spaces.
  • the discharge vessel can consist of a meandering glass tube.
  • a G 23 base for example, can also be used instead of a G 24 base.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP94913017A 1993-05-04 1994-04-27 Kompakte leuchtstofflampe Expired - Lifetime EP0697136B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4314744 1993-05-04
DE4314744A DE4314744A1 (de) 1993-05-04 1993-05-04 Kompakte Leuchtstofflampe
PCT/DE1994/000464 WO1994025978A1 (de) 1993-05-04 1994-04-27 Kompakte leuchtstofflampe

Publications (2)

Publication Number Publication Date
EP0697136A1 EP0697136A1 (de) 1996-02-21
EP0697136B1 true EP0697136B1 (de) 1997-12-03

Family

ID=6487159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94913017A Expired - Lifetime EP0697136B1 (de) 1993-05-04 1994-04-27 Kompakte leuchtstofflampe

Country Status (12)

Country Link
US (1) US5729079A (zh)
EP (1) EP0697136B1 (zh)
JP (1) JPH08509572A (zh)
KR (1) KR960702168A (zh)
CN (1) CN1061172C (zh)
AT (1) ATE160902T1 (zh)
CA (1) CA2160475A1 (zh)
DE (2) DE4314744A1 (zh)
ES (1) ES2109688T3 (zh)
HK (1) HK1003347A1 (zh)
HU (1) HU216037B (zh)
WO (1) WO1994025978A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434124A1 (de) * 1994-09-23 1996-03-28 Walter Holzer Reflektor für Leuchtstofflampen
DE4439727A1 (de) * 1994-11-09 1996-05-15 Walter Holzer Sockel für Kompaktlampen
JP3115826B2 (ja) * 1996-07-01 2000-12-11 松下電子工業株式会社 電球形蛍光灯
ITFI20020114U1 (it) * 2002-12-20 2004-06-21 Targetti Sankey Spa Apparecchio illuminante monouso a sorgente luminosa fluorescente
US7358676B2 (en) 2003-05-26 2008-04-15 Aero Tech Light Bulb Co. Fluorescent light source

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1514281A (en) * 1975-10-24 1978-06-14 Claudgen Ltd Low pressure mercury vapour fluorescent electric discharge lamps
JPS587026B2 (ja) * 1978-06-16 1983-02-08 株式会社日立製作所 簡易形けい光灯
NL8001280A (nl) * 1980-03-04 1981-10-01 Philips Nv Lagedrukontladingslamp.
US4420799A (en) * 1982-08-20 1983-12-13 Miller Jack V Circular gas discharge reflector lamp
DE3313091A1 (de) * 1983-04-12 1984-10-18 Staff GmbH & Co KG, 4920 Lemgo Leuchte mit reflektor und kleinleuchtstofflampe
US4853591A (en) * 1983-11-25 1989-08-01 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh Multiple-tube compact low-pressure discharge fluorescent lamp
DE9014804U1 (zh) * 1990-10-26 1991-01-24 Wildemann, Detlef, 4709 Bergkamen, De
US5294867A (en) * 1992-03-13 1994-03-15 Gte Products Corporation Low pressure mercury vapor discharge lamp containing an amalgam
EP0586680B1 (en) * 1992-03-27 1999-06-09 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp and illumination panel provided with such a lamp

Also Published As

Publication number Publication date
CN1061172C (zh) 2001-01-24
WO1994025978A1 (de) 1994-11-10
CA2160475A1 (en) 1994-11-10
ATE160902T1 (de) 1997-12-15
JPH08509572A (ja) 1996-10-08
US5729079A (en) 1998-03-17
HU9503155D0 (en) 1995-12-28
HU216037B (hu) 1999-04-28
DE4314744A1 (de) 1994-11-10
EP0697136A1 (de) 1996-02-21
CN1122635A (zh) 1996-05-15
ES2109688T3 (es) 1998-01-16
HUT72138A (en) 1996-03-28
KR960702168A (ko) 1996-03-28
HK1003347A1 (en) 1998-10-23
DE59404730D1 (de) 1998-01-15

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