EP1614144A2 - Lampe a incandescence halogene - Google Patents

Lampe a incandescence halogene

Info

Publication number
EP1614144A2
EP1614144A2 EP04725877A EP04725877A EP1614144A2 EP 1614144 A2 EP1614144 A2 EP 1614144A2 EP 04725877 A EP04725877 A EP 04725877A EP 04725877 A EP04725877 A EP 04725877A EP 1614144 A2 EP1614144 A2 EP 1614144A2
Authority
EP
European Patent Office
Prior art keywords
lamp
lamp vessel
vessel
halogen incandescent
light
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.)
Withdrawn
Application number
EP04725877A
Other languages
German (de)
English (en)
Inventor
Wolfgang Andorfer
Axel Bunk
Frank Glöckler
Christoph Krieglmeyer
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 EP1614144A2 publication Critical patent/EP1614144A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector

Definitions

  • the invention relates to a halogen incandescent lamp according to the preamble of patent claim 1.
  • Such a halogen incandescent lamp is disclosed, for example, in European patent application EP 1 255 279 A2. This document describes a miniature halogen incandescent lamp, the dimensions of which are at most 6 mm across its longitudinal extension. This lamp is intended for use in a flashlight.
  • European patent specification EP 0 495 194 B1 describes a reflector lamp consisting of a reflector which is formed by a parabolic or ellipsoidal glass dome and a halogen incandescent lamp which is arranged in the optical axis of the reflector.
  • the halogen incandescent lamp according to the invention has a translucent lamp vessel which is sealed on one side and has at least one incandescent filament arranged therein, a section of the lamp vessel being designed as a reflector and provided with a light-reflecting coating.
  • the reflector in the halogen incandescent lamp according to the invention is designed as a component of the lamp vessel. This can affect the glass dome the conventional reflector lamp can be dispensed with.
  • the halogen incandescent lamp according to the invention therefore requires fewer components, is less expensive and has smaller dimensions than the conventional reflector lamps. It can be used in downlights, for example, instead of the conventional reflector lamp. Correspondingly smaller openings can be used in the false ceiling.
  • the dimensions of the halogen incandescent lamp according to the invention are advantageously only a maximum of 30 mm across their longitudinal axis.
  • the light-reflecting coating is advantageously designed as a dichroic or metallic coating, preferably made of aluminum or silver, since these coatings have a high degree of reflection for all light wavelengths.
  • the halogen incandescent lamp according to the invention advantageously has an axially symmetrical lamp vessel with respect to a longitudinal axis, the at least one filament being arranged in the longitudinal axis and the section of the lamp vessel designed as a reflector being an annular section adjoining the sealed end of the lamp vessel, the ring axis of which is aligned with the longitudinal axis is identical. As a result, the light generated by the axially aligned incandescent filament is predominantly directed in the axial direction, opposite to the sealed end of the lamp vessel.
  • the section of the lamp vessel designed as a reflector is parabolically shaped, the axis of rotation of the paraboloid being arranged in the longitudinal axis and the apex of the paraboloid facing the sealed end of the lamp vessel in order to form a bundled, in the direction of To achieve directed light radiation along the longitudinal axis of the lamp vessel.
  • the lamp vessel is designed ellipsoidal outside its sealed end and the section designed as a reflector essentially comprises a half-shell of the ellipsoidal lamp vessel.
  • the half-shell of the ellipsoid designed as a reflector preferably extends from the sealed end of the lamp vessel to the opposite end of the lamp vessel.
  • the incandescent filament is advantageously completely covered by the coated area of the lamp enclosed to reflect as large a portion of the emitted light as possible in the desired direction.
  • An incandescent filament with the smallest possible dimensions is advantageously used in order to approximate its optical imaging properties to that of a point light source.
  • the length of the light-emitting part of the filament is therefore advantageously a maximum of 4.4 mm and its outer diameter is advantageously less than 2.3 mm.
  • the sealed end of the lamp vessel is advantageously designed as a base in order to ensure the smallest possible dimensions and to keep the number of components as small as possible.
  • Figure 1 is a side view of a first exemplary embodiment of the halogen incandescent lamp according to the invention in a schematic representation
  • Figure 2 is a side view of a second embodiment of the halogen lamp according to the invention in a schematic representation
  • FIG. 3 A more precise illustration of the first exemplary embodiment of the invention shown schematically in FIG. 1, including the lamp vessel seal
  • the first exemplary embodiment of the invention is a low-voltage halogen incandescent lamp which is operated at a voltage of 12 volts and has an electrical power consumption of approximately 50 watts.
  • This lamp has a glass, one-sided sealed lamp vessel 1.
  • the sealed end 2 of the lamp vessel 1 is designed as a GY6.35 base.
  • the lamp vessel 1 is axially symmetrical with respect to its longitudinal axis AA.
  • An axially aligned incandescent filament 3 is arranged inside the lamp vessel 1, the ends of which are electrically conductively connected to one of the contact pins 4, 5 protruding from the base.
  • the incandescent filament 3 has an outer diameter of 2.27 mm and their light-emitting wrap a length of 4.19 mm.
  • the section 11 of the lamp vessel 1 which adjoins the sealed end 2, which is designed as a base, has essentially the shape of a paraboloid of revolution, the axis of rotation of which is identical to the longitudinal axis AA of the lamp vessel 1.
  • the paraboloidfb '-shaped portion 11 of the lamp vessel 1 is provided on its outer surface with an opaque silver layer 6, which has a high light reflectance.
  • the end 12 of the lamp vessel 1 facing away from the base 2 is designed as a flattened dome and closes the light exit opening of the paraboloid section 11 of the lamp vessel 1.
  • the flattened dome 12 is translucent and has no coating.
  • the light-emitting part of the incandescent filament 3 is completely surrounded by the paraboloid section 11 of the lamp vessel 1, so that it is completely covered by the coating 6 in the illustration in FIG. 1.
  • the filament 3 was nevertheless shown in the schematic illustration in FIG. 1, although it would normally not be visible in the side view in FIG.
  • FIG. 3 shows the lamp according to the first exemplary embodiment of the invention without the base 2.
  • the shape of the lamp vessel 1 is shown in more detail than in FIG. 1 and in particular the lamp vessel seal is also shown.
  • the parabolic section 11 of the lamp vessel 1 provided with the light-reflecting coating 6 is connected via a constricted neck region 13 to the sealed end of the lamp vessel 1 designed as a squeezing foot 14.
  • the squeezing foot 14 is arranged in the base 2 (FIG. 1) after the lamp has been socketed.
  • the neck region 13 has an inside diameter of 4 mm and an outside diameter of 6 mm. It therefore has smaller transverse dimensions than the parabolic section 11 of the lamp vessel 1.
  • two power supply wires 31, 32 for the incandescent filament 3 run, each of which is electrically connected to one of the contact pins 4, 5 via a molybdenum foil 15, 16 embedded in the squeezing foot 14 are conductively connected.
  • the light-reflecting coating 6 also extends over the neck area 13 in order to prevent light emission in this area.
  • the opaque coating 6 contains a silver layer which is arranged directly on the outer surface of the lamp vessel 1.
  • the second exemplary embodiment of the invention is a low-voltage halogen incandescent lamp which is operated at a voltage of 12 volts and has an electrical power consumption of approximately 35 watts.
  • This lamp has a glass lamp container 1 'which is sealed on one side.
  • the sealed end 2 'of the lamp vessel 1' is designed as a GY6.35 base.
  • the lamp vessel 1 ' is axially symmetrical with respect to its longitudinal axis B-B.
  • An axially aligned incandescent filament 3 ' is arranged within the lamp vessel 1', the ends of which are electrically conductively connected to one of the contact pins 4 ', 5' protruding from the base.
  • the incandescent filament 3 ' has an outer diameter of 2.17 mm and its light-emitting coil has a length of 3.95 mm.
  • the section of the lamp vessel 1 directly adjoining the sealed end 2 'designed as a base has essentially the shape of an ellipsoid of revolution, the axis of rotation of which is identical to the longitudinal axis B-B of the lamp vessel 1'.
  • the large semi-axis of the ellipsoid also lies in the longitudinal axis B-B of the lamp vessel 1 '.
  • a first half-shell 11 'a of the ellipsoidal section of the lamp vessel 1 is provided on its outer surface with an opaque silver layer 6' which has a high degree of light reflection.
  • the other half-shell 11 'b of the ellipsoidal section of the lamp vessel 1' is designed to be translucent and has no coating.
  • the longitudinal axis B-B of the lamp vessel 1 ' runs within the parting plane between the two half-shells 11a, 11b.
  • the ratio between the coated and the uncoated part of the surface of the ellipsoidal region of the lamp vessel 1 'can also be set to any other value between 40% and 60%.
  • the maximum dimensions of the lamp transverse to the longitudinal axis are 16 mm in both exemplary embodiments.
  • the invention is not limited to the exemplary embodiments explained in more detail above.
  • the halogen incandescent lamps according to the invention can also have a different base, for example a G4 base.
  • Metals other than silver with a similarly high degree of reflection, for example aluminum, are also suitable as a reflective coating.
  • light-reflecting dichroic layers can also be used.
  • the shape of the coated lamp vessel section 11 or 11a does not necessarily have to be parabolic or ellipsoidal.
  • the coated lamp socket section 11 or 11'a can also have the shape of a free-form surface contour, as described, for example, in the patent specification EP 0 282 100 B1 or in the published patent application DE 38 08 086.
  • the coated lamp receptacle section 11 or 11'a can also have the shape of meler composite paraboloid or ellipsoid segments which are arranged rotationally symmetrically to the longitudinal axis A-A of the lamp receptacle 1.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

La présente invention concerne une lampe à incandescence halogène dont le globe (1) est partiellement recouvert d'un revêtement (6) qui réfléchit la lumière, et sert de réflecteur.
EP04725877A 2003-04-17 2004-04-06 Lampe a incandescence halogene Withdrawn EP1614144A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10318051A DE10318051A1 (de) 2003-04-17 2003-04-17 Halogenglühlampe
PCT/DE2004/000723 WO2004095506A2 (fr) 2003-04-17 2004-04-06 Lampe a incandescence halogene

Publications (1)

Publication Number Publication Date
EP1614144A2 true EP1614144A2 (fr) 2006-01-11

Family

ID=33103531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04725877A Withdrawn EP1614144A2 (fr) 2003-04-17 2004-04-06 Lampe a incandescence halogene

Country Status (6)

Country Link
US (1) US20060197421A1 (fr)
EP (1) EP1614144A2 (fr)
CN (1) CN101410938B (fr)
CA (1) CA2522494A1 (fr)
DE (1) DE10318051A1 (fr)
WO (1) WO2004095506A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018115A1 (de) 2005-04-19 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Kompakte Reflektorlampe und Verfahren zu ihrer Herstellung

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939017B1 (fr) * 1970-10-20 1974-10-22
US3983513A (en) * 1973-10-18 1976-09-28 Westinghouse Electric Corporation Incandescent lamp having a halogen-containing atmosphere and an integral reflector of non-reactive specular metal
US4287231A (en) 1975-01-20 1981-09-01 Westinghouse Electric Corp. Method of spray-reflectorizing electric lamp envelopes
US4041344A (en) * 1976-08-30 1977-08-09 General Electric Company Ellipsoidal reflector lamp
NL184651C (nl) * 1979-02-26 1989-09-18 Philips Nv Elektrische gloeilamp.
US4535269A (en) * 1983-08-01 1985-08-13 General Electric Company Incandescent lamp
HU191444B (en) * 1984-09-21 1987-02-27 Tungsram Rt,Hu Reflector lamp
DE3640990A1 (de) * 1986-12-01 1988-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gequetschte hochdruckentladungslampe
EP0282100B1 (fr) * 1987-03-11 1991-02-27 EASTMAN KODAK COMPANY (a New Jersey corporation) Projecteur pour véhicule et procédé de fabrication d'un système optiquement actif pour ce projecteur
DE3808086A1 (de) * 1988-03-11 1989-09-28 Hella Kg Hueck & Co Reflektor fuer abgeblendete oder abblendbare kraftfahrzeugscheinwerfer
CN2064539U (zh) * 1989-11-08 1990-10-24 陈煜� 局部金属镀膜反光照明灯
DE9017071U1 (de) 1990-12-18 1991-03-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Reflektorlampe
DE4420607A1 (de) * 1994-06-13 1995-12-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe und Leuchtkörper für Glühlampen
US5660462A (en) * 1994-09-13 1997-08-26 Osram Sylvania Inc. High efficiency vehicle headlights and reflector lamps
DE19623499A1 (de) * 1996-06-12 1997-12-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung einer Halogenglühlampe
DE19701794A1 (de) * 1997-01-20 1998-07-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe mit Reflexionsschicht
JP4754038B2 (ja) 1997-05-06 2011-08-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 電気白熱電球
US6053623A (en) * 1998-03-03 2000-04-25 New Option Lighting, Llc Waterproof light with multi-faceted reflector in a flexible enclosure
DE19844519C2 (de) * 1998-09-28 2000-08-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit IR-Reflexionsschicht
US6586878B1 (en) * 1999-12-16 2003-07-01 Koninklijke Philips Electronics N.V. Metal halide lamp with improved getter orientation
EP1338020A1 (fr) 2000-11-17 2003-08-27 Koninklijke Philips Electronics N.V. Lampe electrique et corps de metal mis en forme pour etre utilise avec cette derniere
US20020180356A1 (en) * 2001-04-05 2002-12-05 Kirkpatrick Douglas A. Sulfur lamp
DE10121579A1 (de) * 2001-05-03 2002-11-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogenglühlampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004095506A2 *

Also Published As

Publication number Publication date
WO2004095506A3 (fr) 2009-02-05
WO2004095506A2 (fr) 2004-11-04
CA2522494A1 (fr) 2004-11-04
DE10318051A1 (de) 2004-11-04
CN101410938A (zh) 2009-04-15
US20060197421A1 (en) 2006-09-07
CN101410938B (zh) 2010-06-16

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