EP0742610A2 - Lampe électrique à double culot ayant une position de travail préférée et un socle à douille associé - Google Patents

Lampe électrique à double culot ayant une position de travail préférée et un socle à douille associé Download PDF

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Publication number
EP0742610A2
EP0742610A2 EP96106461A EP96106461A EP0742610A2 EP 0742610 A2 EP0742610 A2 EP 0742610A2 EP 96106461 A EP96106461 A EP 96106461A EP 96106461 A EP96106461 A EP 96106461A EP 0742610 A2 EP0742610 A2 EP 0742610A2
Authority
EP
European Patent Office
Prior art keywords
lamp
base
socket
bulb
double
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
EP96106461A
Other languages
German (de)
English (en)
Other versions
EP0742610A3 (fr
EP0742610B1 (fr
Inventor
Wolfgang Greiler
Michael Pleuser
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 EP0742610A2 publication Critical patent/EP0742610A2/fr
Publication of EP0742610A3 publication Critical patent/EP0742610A3/fr
Application granted granted Critical
Publication of EP0742610B1 publication Critical patent/EP0742610B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/02—Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • the invention relates to a double-ended electric lamp with a preferred operating position and a socket, as well as a base and a socket sleeve for such a lamp according to the preamble of claims 1, 6, 16 or 20.
  • a combination of a double-ended electric lamp and a socket for such a lamp is common for double-ended high-pressure discharge lamps, which are used in the photo-optics area, and for their sockets. They have been commercially available for a long time.
  • These sockets are usually integrated in a projection apparatus or a reflector lamp, and the aforementioned double-ended high-pressure discharge lamps have a lamp envelope with two base ends which extend diametrically along the longitudinal axis of the lamp envelope.
  • the lamp bulb ends, in particular in the base area are essentially rotationally symmetrical with respect to the longitudinal axis of the lamp bulb, while the lamp itself is not rotationally symmetrical and has a well-defined preferred operating position.
  • Such a lamp which corresponds to the preamble of patent claim 6, is disclosed, for example, in the published patent application EP 0 447 668 A1.
  • the rotational symmetry of the lamp with respect to the longitudinal axis of the lamp bulb is destroyed, for example, by a pump stem attachment which is arranged centrally on the wall of the lamp bulb.
  • a pump stem attachment which is arranged centrally on the wall of the lamp bulb.
  • the lamp inserted into the socket has to be rotated into a certain position, its preferred operating position, so that the stem of the pump stem is not used for optical imaging Location.
  • a serious disadvantage of the conventional double-ended electric lamps with a preferred operating position and their associated sockets is that they are not equipped with a positioning aid which ensures that the lamp can only be installed in the preferred operating position.
  • the rotationally symmetrical structure in the base area of the lamp bulb ends, in particular the base sleeves on the lamp bulb ends, and the matched sockets allow the lamp to be installed in almost any position, so that the user can only find out about the proper installation of the aforementioned lamps and sockets with the help of an operating manual and must pay attention to the correct position of the pump stem attachment. If the user does not exercise sufficient care, this only leads to poor optical imaging in the favorable case and, in the unfavorable case, even to the destruction of the lamp.
  • the lamp bulb ends have a stop surface arranged perpendicular to the longitudinal axis of the lamp, which are provided with depressions or elevations which cancel the rotational symmetry of the lamp bulb ends in the base area, while the socket contacts belonging to the holder, the pinching rest on the stop surfaces, are equipped with projections or recesses matched to the depressions or elevations.
  • the depressions or elevations in the stop surface and the projections or recesses on the socket contacts form a positioning aid for the lamp. They ensure that the lamp can only be inserted into the socket in the correct position.
  • the lamp bulb ends each have a base sleeve and the stop surfaces are part of these base sleeves.
  • the depressions or elevations in the stop surface are designed as steps and the projections or recesses on the socket contacts are designed as web-shaped projections.
  • the steps are advantageously cut-outs of shallow depth in the stop surface or in the base of the base sleeve.
  • the positioning aids are mounted on the stop surfaces and on the socket contacts in such a way that the lamp bulb ends and the socket contacts are arranged point-symmetrically with respect to the center of the lamp, that is to say that when the lamp and the socket are rotated through 180 ° about a suitable axis of rotation, which is perpendicular to the longitudinal axis is arranged and which runs in the middle between the socket contacts or in the middle between the lamp bulb ends, the first with the second capped lamp bulb end and the first with the second pressure spring are made to coincide.
  • This arrangement of the positioning aids has the advantage that the two capped lamp bulb ends are equivalent, that is, interchangeable, when the lamp is installed in the socket.
  • This arrangement of the positioning aids is particularly advantageous in the case of lamps operated with alternating current, the lamp bulb ends of which are designed as electrical connections directly, without using connecting cables between the lamp and the holder.
  • the above-mentioned arrangement of the positioning aids prevents the lamp from being inserted into the socket with the top facing downward.
  • the stop surface and the positioning aids located thereon are advantageously part of the metallic base sleeves applied to the lamp bulb ends.
  • the base sleeves and the socket contacts not only serve to hold the lamp, but also to electrically connect the double-ended electric lamp.
  • FIG. 1 shows a high-pressure discharge lamp 1 with a base on both sides, with a holder according to a preferred exemplary embodiment of the invention.
  • the lamp is in particular a metal halide high-pressure discharge lamp fed with an alternating current and having an electrical power consumption of approximately 575 W.
  • the socket contacts 2a, 2b of the socket, which are also shown, are integrated, for example, in a video projector or in an overhead projector.
  • the lamp 1 has a lamp bulb 3 made of quartz glass with two ends 3a, 3b which are arranged diametrically on both sides of the discharge space 3c and which extend along the longitudinal axis AA of the lamp 1.
  • the lamp bulb 3 is here identical to the discharge vessel of the lamp 1.
  • the lamp bulb ends or discharge vessel ends 3a, 3b are designed as bulb shafts with molybdenum sealing foils melted therein in a gas-tight manner.
  • the molybdenum sealing foils serve to supply voltage to the lamp electrodes protruding into the discharge space 3c, between which a gas discharge is formed during lamp operation.
  • the piston shafts 3a, 3b each have a metallic base sleeve 4a, 4b at their free ends, which is connected in an electrically conductive manner to the molybdenum sealing film or films of the corresponding piston shaft.
  • the lamp bulb 3 is rotationally symmetrical with respect to the lamp longitudinal axis AA in the area of the bulb shafts 3a, 3b.
  • the rotational symmetry of the lamp bulb 3 is destroyed by a pump stem attachment 5, which originates from a melted pump stem.
  • the high-pressure discharge lamp 1 is operated in a horizontal position, that is to say with a horizontal discharge path. During lamp operation, the lamp bulb 3 must be aligned in such a way that the pump stem attachment 5 points upwards.
  • the metallic socket sleeves 4a, 4b which are essentially rotationally symmetrical with respect to the lamp longitudinal axis AA, are on the free ends of the bulb shafts 3a, 3ab, and the socket contacts 2a, 2b of the lamp socket are matched to one another Positioning aids equipped.
  • the metallic base sleeves 4a, 4b have two adjacent sections 6a, 7a and 6b, 7b of different diameters.
  • the two tube-like sections 6a, 6b and 7a, 7b of each base sleeve 4a, 4b form an annular disk-shaped element arranged perpendicular to the lamp longitudinal axis AA Stop surface 8a or 8b.
  • the first tubular section 6a or 6b of the base sleeve 4a or 4b has a larger diameter than its second tubular section 7a or 7b.
  • the free end of the piston skirt 3a or 3b is fixed in the first section 6a or 6b of the base sleeve 4a or 4b.
  • the open end of the second tubular section 7a or 7b is closed by a metal base pin 9a or 9b.
  • the abutment surfaces 8a, 8b of the base sleeves 4a, 4b are each provided with an approximately 1.5 mm deep cutout 10a, 10b. These millings 10a, 10b each define a step in the stop surfaces 8a, 8b with a straight edge running perpendicular to the lamp longitudinal axis AA. The depth of these cutouts 10a, 10b is less than the wall thickness of the base sleeves 4a, 4b in the region of the stop surfaces 8a, 8b. Both base sleeves 4a, 4b are shaped identically.
  • the socket contacts 2a, 2b are also shaped identically. They are made of metal and essentially have the shape of an angle.
  • the socket contacts 2a, 2b have a contact surface 11a or 11b and a foot 12a or 12b bent at right angles from the lower edge of the contact surface 11a or 11b.
  • a slope 13a or 13b is formed on the upper edge of the contact surface 12a or 12b.
  • the socket contacts 2a, 2b each have a slot-like opening 14a, 14b, which extends into the bevel 13a or 13b.
  • the socket contacts 2a, 2b each have a web-shaped projection 15a or 15b, which projects out of the contact surface 11a or 11b in addition to the slot-like opening 14a or 14b and runs parallel to the opening 14a or 14b.
  • the width of the slot-like openings 14a, 14b is matched to the diameter of the second tubular sections 7a, 7b of the base sleeves 4a, 4b.
  • the socket contacts 2a, 2b also serve for the electrical power supply of the lamp 1. The electrical contact is made via the contact surfaces 11a, 11b of the socket contacts 2a, 2b and the stop surfaces 8a, 8b of the base sleeves 4a, 4b.
  • the base sleeves 4a, 4b serve directly as electrical connections of the lamp 1 without using supply or connection cables between the lamp and the socket.
  • the second sections 7a, 7b of the base sleeves 4a, 4b engage in the openings 14a, 14b of the socket contacts 2a, 2b, so that the contact surfaces 11a, 11b of the socket contacts 2a, 2b on the stop surfaces 8a, 8b of the base sleeves 4a, 4b are clamped.
  • the web-shaped projections 15a, 15b of the socket contacts 2a, 2b engage in the cutouts 10a, 10b of the base sleeves 4a, 4b.
  • the millings 10a, 10b and the web-shaped projections 15a, 15b, in combination with the openings 14a, 14b serving as receptacles for the lamp bulb ends 7a, 7b, ensure that the lamp 1 can only be inserted into the socket contacts 2a, 2b with the pump stem attachment 5 pointing upwards Lamp holder can be used. If the pump stem attachment 5 points downward when the lamp 1 is installed, for example, the web-shaped projections 15a, 15b prevent the base sleeve sections 7a, 7b from being inserted into the receptacles 14a, 14b of the socket contacts 2a, 2b.
  • the capped lamp bulb ends 3a, 3b and the socket contacts 2a, 2b with the positioning aids 10a, 10b, 15a, 15b are point-symmetrical with respect to the center of the lamp, the center of the lamp being between the lamp bulb ends 3a, 3b and centrally between the socket contacts 2a, 2b on the lamp longitudinal axis AA lies.
  • the point symmetry described above has the effect that both lamp bulb ends 3a, 3b are completely equivalent.
  • the lamp 1 can thus be oriented during installation so that the lamp bulb end 4a engages either in the receptacle 14a of the pressure spring 2a or in the receptacle 14b of the pressure spring 2b.
  • the positioning aids 10a, 10b, 15a, 15b ensure that the lamp 1 can only be inserted into the socket with the pump stem attachment 5 pointing upwards.
  • the Positioning aids 10a, 10b, 15a, 15b according to the invention neither the distance of the abutment surfaces 8a, 8b from one another nor the diameter of the base sleeves 4a, 4b in the mounting area of the lamp 1 - this is the second tubular section 7a, 7b of the base sleeves 4a, 4b, which in the Receptacle 14a, 14b of the socket contacts 2a, 2b engages - change, the lamp 1 according to the invention can also be installed in optical devices which are still equipped with the conventional lamp sockets.
  • the lamp can also be a high-pressure discharge lamp with an outer bulb which is capped on both sides and which surrounds the discharge vessel of the lamp.
  • the lamp bulb is identical to the outer bulb.
  • the pump stem approach can also have a different orientation than in the preferred embodiment.
  • the preferred operating position of the lamp does not necessarily have to be defined by a pump stem approach.
  • a discharge vessel curved upwards in a sickle-like manner can also determine the preferred operating position of the lamp.
  • the preferred operating position of the lamp can also be determined by the non-coaxial arrangement of an essentially rod-shaped discharge vessel within the outer bulb.
  • the lamp can also be an incandescent lamp with a festoon-like lamp bulb, which has an irregularity on the lamp bulb that interferes with the translucency of the lamp bulb, such as a pump stem attachment.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Connecting Device With Holders (AREA)
EP96106461A 1995-05-12 1996-04-24 Lampe électrique à double culot ayant une position de travail préférée et un socle à douille associé Expired - Lifetime EP0742610B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19517516 1995-05-12
DE19517516A DE19517516A1 (de) 1995-05-12 1995-05-12 Zweiseitig gesockelte elektrische Lampe mit bevorzugter Betriebslage und Fassung sowie Sockel und Sockelhülse für eine derartige Lampe

Publications (3)

Publication Number Publication Date
EP0742610A2 true EP0742610A2 (fr) 1996-11-13
EP0742610A3 EP0742610A3 (fr) 1997-07-16
EP0742610B1 EP0742610B1 (fr) 2001-09-05

Family

ID=7761792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106461A Expired - Lifetime EP0742610B1 (fr) 1995-05-12 1996-04-24 Lampe électrique à double culot ayant une position de travail préférée et un socle à douille associé

Country Status (7)

Country Link
US (1) US5731656A (fr)
EP (1) EP0742610B1 (fr)
JP (1) JP3542870B2 (fr)
CA (1) CA2176399C (fr)
DE (2) DE19517516A1 (fr)
DK (1) DK0742610T3 (fr)
NO (1) NO319677B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989587A1 (fr) * 1998-09-22 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression et dispositif d'éclairage comportant une telle lampe

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063575B2 (en) 2001-10-04 2006-06-20 Guide Corporation Terminal alignment features for bulb sockets
US7014510B2 (en) 2001-10-04 2006-03-21 Guide Corporation Wedge base sealed lamp socket
US7321190B2 (en) * 2002-07-22 2008-01-22 Matsushita Electric Industrial Co., Ltd. Low-pressure mercury lamp having a spiral arc tube and method for assembling the same
US20050163911A1 (en) * 2004-01-28 2005-07-28 Cargill, Inc. Animal feed product containing crushed urea
US7474043B2 (en) * 2006-04-03 2009-01-06 Osram Sylvania Inc. Double-ended lamp socket with bulb removal feature
WO2007143618A2 (fr) * 2006-06-02 2007-12-13 Kartheinz Strobl LAMPE remplaçable à clavette
KR101685858B1 (ko) * 2006-09-01 2016-12-12 가부시키가이샤 니콘 방전램프, 광원장치, 노광장치 및 노광장치의 제조방법
JP4537488B2 (ja) * 2009-03-27 2010-09-01 Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 放電ランプ
JP4573311B2 (ja) * 2010-03-17 2010-11-04 Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 光源装置及び放電ランプ
DE102012222103B4 (de) * 2012-12-03 2024-01-11 Ledvance Gmbh Leuchtvorrichtung mit miteinander verbundenen teilen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917745A1 (de) * 1979-05-02 1980-11-13 Arnold & Richter Kg Gasentladungslampe
DE3934348A1 (de) * 1989-10-14 1991-04-25 Heraeus Instr Gmbh Elektrische entladungslampe
US5382874A (en) * 1992-11-03 1995-01-17 Illumination Technology, Inc. Self-aligning light directing surface mountable miniature incandescent lamp
DE29504517U1 (de) * 1995-03-22 1995-05-18 Bender & Wirth GmbH & Co, 58566 Kierspe Fassung für eine Halogen-Metalldampflampe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281079A3 (fr) * 1987-03-05 1990-06-27 Kabushiki Kaisha Toshiba Lampe à décharge à basse pression
US4952838A (en) * 1989-01-11 1990-08-28 Precision Lamp, Inc. Surface mount miniature incandescent lamp assembly
DE4030202A1 (de) * 1990-09-24 1992-03-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenid-hochdruckentladungslampe
US5130604A (en) * 1991-01-18 1992-07-14 George J. Franks, Jr. Miniature incandescent lamp with curable electrically conductive adhesive
US5276379A (en) * 1992-02-18 1994-01-04 Gte Products Corporation Arc discharge lamp having cementless base members
US5296780A (en) * 1992-03-20 1994-03-22 Gte Products Corporation Arc discharge lamp having cementless right-angle base members

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917745A1 (de) * 1979-05-02 1980-11-13 Arnold & Richter Kg Gasentladungslampe
DE3934348A1 (de) * 1989-10-14 1991-04-25 Heraeus Instr Gmbh Elektrische entladungslampe
US5382874A (en) * 1992-11-03 1995-01-17 Illumination Technology, Inc. Self-aligning light directing surface mountable miniature incandescent lamp
DE29504517U1 (de) * 1995-03-22 1995-05-18 Bender & Wirth GmbH & Co, 58566 Kierspe Fassung für eine Halogen-Metalldampflampe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989587A1 (fr) * 1998-09-22 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression et dispositif d'éclairage comportant une telle lampe

Also Published As

Publication number Publication date
JP3542870B2 (ja) 2004-07-14
NO319677B1 (no) 2005-09-05
DE59607611D1 (de) 2001-10-11
DK0742610T3 (da) 2001-12-10
EP0742610A3 (fr) 1997-07-16
JPH08315725A (ja) 1996-11-29
CA2176399C (fr) 2006-08-29
EP0742610B1 (fr) 2001-09-05
NO961917L (no) 1996-11-13
US5731656A (en) 1998-03-24
DE19517516A1 (de) 1996-11-14
CA2176399A1 (fr) 1996-11-13
NO961917D0 (no) 1996-05-10

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