EP0157357A2 - Lampe à décharge à haute pression à culot d'un côté - Google Patents

Lampe à décharge à haute pression à culot d'un côté Download PDF

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Publication number
EP0157357A2
EP0157357A2 EP85103646A EP85103646A EP0157357A2 EP 0157357 A2 EP0157357 A2 EP 0157357A2 EP 85103646 A EP85103646 A EP 85103646A EP 85103646 A EP85103646 A EP 85103646A EP 0157357 A2 EP0157357 A2 EP 0157357A2
Authority
EP
European Patent Office
Prior art keywords
cone
centering pin
base
pressure discharge
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
EP85103646A
Other languages
German (de)
English (en)
Other versions
EP0157357A3 (en
EP0157357B1 (fr
Inventor
Wolfgang Greiler
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 EP0157357A2 publication Critical patent/EP0157357A2/fr
Publication of EP0157357A3 publication Critical patent/EP0157357A3/de
Application granted granted Critical
Publication of EP0157357B1 publication Critical patent/EP0157357B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps

Definitions

  • the invention relates to a single-ended high-pressure discharge lamp with a discharge vessel, which has two opposite shafts, in which current leads are melted in, one shaft opening directly into a base made of a heat-resistant, electrically insulating material with two contact elements, and the current supply of this shaft with one Contact element and the other power supply of the shaft facing away from the base is connected to the second contact element via an electrical conductor.
  • Such a lamp is known for example from DE-OS 32 36 462.
  • these lamps achieve good operational safety with regard to the electrical data with an ignition voltage of more than 20 kV required for hot ignition (immediate re-ignition).
  • the angled power supply to one of the contact elements results in a relatively large contact distance and thus an oversized size of the base body.
  • a correspondingly large cutout in the apex of the reflector is also required, which means that the utilization of the light emitted by the lamp is reduced.
  • the contact surface in the associated version lies on the underside of the base of the collar surrounding the contact elements. This results in a relatively large length up to the discharge vessel, which means that the lamp can be positioned less precisely.
  • the object of the invention is to design the base body in such a way that it enables good positioning in the reflector with small geometric dimensions.
  • the base body should continue to heat up as little as possible due to the radiation emitted by the lamp.
  • at least the same advantageous values should apply to the electrical data as to the known lamps.
  • the single-ended high-pressure discharge lamp with the features mentioned in the preamble of the main claim is characterized in that the base has a substantially conical shape in its part facing the discharge vessel, which is followed by a hollow cylindrical centering pin with a lateral slot which surrounds one of the contact elements, wherein the shaft opening in the base is fastened in the tapered part and the electrical conductor is fastened in the lateral surface of the cone, and the second contact element is arranged at a distance next to the centering pin on the side facing away from the slot.
  • the centering pin lies on the longitudinal axis of the lamp formed by the shafts.
  • the centering pin is advantageously rectangular and has a collar on its side facing away from the discharge vessel of partially annular cross section which concentrically surrounds the contact element.
  • the collar increases the withstand voltage of the high voltage, because less dirt can accumulate on the edges and corners.
  • the extensions of the surface lines of the cone form an intersection within the discharge space, preferably in the center of the arc. This measure ensures that only a minimum of radiation falls from the discharge space onto the base body and heats the base body higher than desired.
  • the tapered part of the cone, in which a lamp shaft is fastened is designed as an annular collar which surrounds this lamp shaft at a certain distance.
  • the part of the cone facing away from the lamp has a larger cross section than the centering pin.
  • the surfaces of the cone protruding on both sides above the centering pin are arranged perpendicular to the lamp axis and form a plane serving as a support surface. In this way, a better positioning of the lamp in the socket is achieved compared to the known embodiment, since the contact surface is closer to the arc and an undesired tilting of the lamp in the socket has less of an effect.
  • the electrical conductor leading away from the power supply facing away from the socket is designed as a flat, preformed, rigid metal strip which faces the discharge vessel with its narrow side and which is guided through the lateral surface of the cone and at the same time is designed as a second contact element.
  • the heating of the metal strip is kept small and, on the other hand, the otherwise necessary welded connections on the power supply or on the contact element are avoided.
  • the lamp is less susceptible to faults.
  • Both contact elements are shorter than the cylindrical centering pin of the base, so that when inserting the base into a socket the centering pin engages before the contact elements come into contact with the corresponding contact counterparts of the socket.
  • the second contact element is more suitable than the known embodiments in that the lamp is secured against being pulled out of the socket.
  • the high-pressure discharge lamp 1 shown in FIGS. 1 to 3 consists of the discharge vessel 2 with the two shafts 3 and 4 arranged opposite one another and the base 5 made of ceramic.
  • a power supply 6 protrudes from the shaft 4 on the side facing away from the base 5.
  • the shaft 3 opens into an opening in the base 5 and is fastened there.
  • the discharge vessel 2 is filled with mercury, several metal halides and an inert gas and sealed at the pump tip 7.
  • a high-pressure lamp without halide additives or an inert gas lamp can also be used.
  • the base 5 consists of an upper part 8 facing the discharge vessel 2 with an essentially conical shape, to which a lower, hollow cylindrical centering pin 9 adjoins the discharge vessel 2.
  • the angle of the cone 8 is chosen so that the extensions of its surface lines form an intersection within the discharge space.
  • the cone 8 is cut symmetrically on both sides.
  • a smaller round collar 10 adjoins the centering pin 9 with a rectangular cross section.
  • a slot 11 extends over almost the entire length of the centering pin 9, including the collar 10, which gives access to the connecting pin 12 surrounded by the centering pin 9 at a certain distance.
  • This pin 12 is provided for the high voltage required for ignition. The power supply melted into the shaft 3 (not visible in FIGS. 1 and 2) is welded to this connecting pin 12.
  • the second pin 13 is located outside the centering pin 9 on the side facing away from the slot 11 and is formed by a preformed, rigid, flat metal band 14 made of nickel-plated copper, which is welded to the power supply 6 of the lamp shaft 4 and is guided through the outer surface of the cone 8 .
  • the lamp shaft 3 is fastened in the tapered part and the metal strip 14 in the lower region of the cone 8 by means of cement.
  • FIG. 3 shows the interaction of the lamp 1 and in particular the base 5 with an associated socket 15.
  • the contact elements 16 and 17 of the socket 15 are designed in the manner of leaf springs and take up the connecting pins 12 and 13 in a force-fitting manner.
  • the contact element 16 protrudes through the slot 11 of the centering pin 9.
  • the centering pin 9 and the round collar 10 find space within a centering recess incorporated in the socket body 18.
  • the contact elements 16 and 17 are fastened in chambers 20 and 21 separated from one another by a wall 19, the respective upper openings of both chambers 20 and 21 leaving only one access for the centering pin 9 with its collar 10 and the connecting pins 12 and 13 by covers 22 and 23 are closed from ceramic or mica.
  • the high-pressure discharge lamp 1 is arranged within a reflector 24.
  • the metal halide high-pressure discharge lamp 1 described here is preferably operated at a square-wave voltage with an open-circuit voltage of more than 250 V, as a result of which it is particularly suitable for film and television recordings without a flicker effect.
  • the lamp is also suitable for e.g. Slide projection and other applications can be used.
  • An ignition voltage of up to 25 kV is applied for the ignition, in particular for immediate re-ignition.
  • the favorable combination of halides of different rare earths results in constant, daylight-like radiation of 18,900 lm at approx. 5,600 K and a color rendering index Ra of more than 90.
  • the burning voltage of approx. 45 V and the current of 6 A result in a lamp power of e.g. approx.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
EP85103646A 1984-04-03 1985-03-27 Lampe à décharge à haute pression à culot d'un côté Expired EP0157357B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843412489 DE3412489A1 (de) 1984-04-03 1984-04-03 Einseitig gesockelte hochdruckentladungslampe
DE3412489 1984-04-03

Publications (3)

Publication Number Publication Date
EP0157357A2 true EP0157357A2 (fr) 1985-10-09
EP0157357A3 EP0157357A3 (en) 1987-02-04
EP0157357B1 EP0157357B1 (fr) 1989-08-02

Family

ID=6232543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103646A Expired EP0157357B1 (fr) 1984-04-03 1985-03-27 Lampe à décharge à haute pression à culot d'un côté

Country Status (4)

Country Link
US (1) US4626734A (fr)
EP (1) EP0157357B1 (fr)
JP (1) JPH0727751B2 (fr)
DE (2) DE3412489A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231935A2 (fr) * 1986-02-06 1987-08-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe de phare pour des véhicules automobiles
EP0321867A2 (fr) * 1987-12-22 1989-06-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression
GB2234628A (en) * 1989-07-31 1991-02-06 Koito Mfg Co Ltd Discharge lamp base construction.
FR2665022A1 (fr) * 1990-07-20 1992-01-24 Koito Mfg Co Ltd Lampe a decharge.
EP0478078A1 (fr) * 1990-09-28 1992-04-01 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression à culot et douille pour une telle lampe
EP0856870A1 (fr) * 1997-01-31 1998-08-05 Heraeus Noblelight GmbH Radiateur optique
EP1139375A1 (fr) * 2000-03-30 2001-10-04 Heraeus Noblelight GmbH Emetteur de rayonnement

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600226A (nl) * 1985-11-19 1987-06-16 Philips Nv Gesokkelde voertuig-koplamp.
DE3641852A1 (de) * 1986-12-08 1988-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kfz-scheinwerfer-einheit
EP0282119B1 (fr) * 1987-03-06 1993-09-01 Koninklijke Philips Electronics N.V. Ensemble phare-connecteur
JPH0232602U (fr) * 1988-08-25 1990-02-28
US5032758A (en) * 1989-09-28 1991-07-16 General Electric Company Precision tubulation for self mounting lamp
US5229681A (en) * 1989-10-10 1993-07-20 Musco Corporation Discharge lamp with offset or tilted arc tube
US5019743A (en) * 1989-11-17 1991-05-28 General Electric Company Mount structure for double ended lamp
JPH03106651U (fr) * 1990-02-19 1991-11-05
JPH03106652U (fr) * 1990-02-19 1991-11-05
JP2515396Y2 (ja) * 1990-03-14 1996-10-30 ウシオ電機株式会社 光源装置
US5126619A (en) * 1990-07-20 1992-06-30 Koito Manufacturing Co., Ltd. Discharge lamp unit
DE4223643A1 (de) * 1992-07-17 1994-01-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte Hochdruckentladungslampe
US5386173A (en) * 1992-08-28 1995-01-31 General Electric Company One-piece thermally resistant gimbal device for a replaceable headlamp bulb
DE19646715A1 (de) * 1996-11-12 1998-05-14 Molex Inc Leuchtmittelsockel
DE19916877A1 (de) * 1999-04-14 2000-10-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe mit Sockel
US7059745B2 (en) * 2002-02-07 2006-06-13 Musco Corporation Lighting fixture with quick-disconnect light source mount
US6566814B2 (en) * 2001-04-24 2003-05-20 Osram Sylvania Inc. Induction sealed high pressure lamp bulb
US7045936B2 (en) * 2002-10-01 2006-05-16 Hitachi Electronic Devices (Usa), Inc. Projection coupler with contrast ribs
EP2053628A1 (fr) * 2007-10-26 2009-04-29 Koninklijke Philips Electronics N.V. Unité de lampe à culot et réflecteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472529A1 (de) * 1965-06-15 1969-07-10 Patra Patent Treuhand Aus einer gesockelten elektrischen Gluehlampe und einem Reflektor bestehende Lichtwurfeinrichtung
US3500105A (en) * 1968-02-19 1970-03-10 Sylvania Electric Prod Incandescent lamp having a ceramic screw type base
US3700881A (en) * 1971-04-29 1972-10-24 Gen Electric Lamp and reflector assembly
DE3236462A1 (de) * 1982-10-01 1984-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe mit sockel und zugehoeriger fassung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1324333A (fr) * 1962-03-06 1963-04-19 Dispositif de sécurité pour lampes, notamment pour lampes de projecteurs de véhicules automobiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472529A1 (de) * 1965-06-15 1969-07-10 Patra Patent Treuhand Aus einer gesockelten elektrischen Gluehlampe und einem Reflektor bestehende Lichtwurfeinrichtung
US3500105A (en) * 1968-02-19 1970-03-10 Sylvania Electric Prod Incandescent lamp having a ceramic screw type base
US3700881A (en) * 1971-04-29 1972-10-24 Gen Electric Lamp and reflector assembly
DE3236462A1 (de) * 1982-10-01 1984-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe mit sockel und zugehoeriger fassung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231935A3 (en) * 1986-02-06 1989-10-18 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Dazzle headlight lamp for motor vehicles
EP0231935A2 (fr) * 1986-02-06 1987-08-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe de phare pour des véhicules automobiles
EP0321867A2 (fr) * 1987-12-22 1989-06-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression
EP0321867A3 (fr) * 1987-12-22 1991-01-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression
GB2234628B (en) * 1989-07-31 1994-03-09 Koito Mfg Co Ltd Discharge lamp base construction
GB2234628A (en) * 1989-07-31 1991-02-06 Koito Mfg Co Ltd Discharge lamp base construction.
FR2665022A1 (fr) * 1990-07-20 1992-01-24 Koito Mfg Co Ltd Lampe a decharge.
US5250872A (en) * 1990-07-20 1993-10-05 Koito Manufacturing Co., Ltd. Discharge lamp unit having improved discharge tube mount
EP0478078A1 (fr) * 1990-09-28 1992-04-01 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression à culot et douille pour une telle lampe
EP0856870A1 (fr) * 1997-01-31 1998-08-05 Heraeus Noblelight GmbH Radiateur optique
US6107738A (en) * 1997-01-31 2000-08-22 Heraeus Noblelight Gmbh Metal halide discharge lamp with improved socket and support
EP1139375A1 (fr) * 2000-03-30 2001-10-04 Heraeus Noblelight GmbH Emetteur de rayonnement
US6570307B2 (en) 2000-03-30 2003-05-27 Heraeus Noblelight Gmbh Optical radiator with anti-extraction lock

Also Published As

Publication number Publication date
DE3572084D1 (en) 1989-09-07
JPS60227337A (ja) 1985-11-12
EP0157357A3 (en) 1987-02-04
DE3412489A1 (de) 1985-10-03
JPH0727751B2 (ja) 1995-03-29
EP0157357B1 (fr) 1989-08-02
US4626734A (en) 1986-12-02

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