EP1169723B1 - Reflektor-hochdruckentladungslampen-einheit - Google Patents

Reflektor-hochdruckentladungslampen-einheit Download PDF

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Publication number
EP1169723B1
EP1169723B1 EP01907360A EP01907360A EP1169723B1 EP 1169723 B1 EP1169723 B1 EP 1169723B1 EP 01907360 A EP01907360 A EP 01907360A EP 01907360 A EP01907360 A EP 01907360A EP 1169723 B1 EP1169723 B1 EP 1169723B1
Authority
EP
European Patent Office
Prior art keywords
reflector
base part
pressure discharge
discharge lamp
lamp unit
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
EP01907360A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1169723A1 (de
Inventor
Florian Heike
Sven Schalk
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 EP1169723A1 publication Critical patent/EP1169723A1/de
Application granted granted Critical
Publication of EP1169723B1 publication Critical patent/EP1169723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
    • 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
    • H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part

Definitions

  • the invention relates to a reflector high-pressure discharge lamp unit according to the features of the preamble of claim 1.
  • Such a reflector high-pressure discharge lamp unit is known from DE 30 33 688 known.
  • a high pressure discharge lamp and a reflector are firmly connected as a unit.
  • An electrically insulating first base part is connected to the reflector neck and the lamp, and a second base part, which is made of ceramic and has the shape of a ring, is connected to the light-emitting exit opening of the reflector.
  • the power supply connected to the end of the lamp located in the light exit direction is designed as a metal band or welded to a metal band extending over the cross section.
  • the metal strip terminates in a free-standing, metallic contact pin, which is fastened to the ring of the base part and serves to electrically contact the lamp by means of a high-voltage cable.
  • the above-mentioned reflector discharge lamps are preferably used in video and data projectors, ie in projection devices in which liquid crystals or DMDs (Digital Mirror Device from DMD TM ) are used as light valves.
  • DMDs Digital Mirror Device from DMD TM
  • the so-called “ultra-compact" projectors have gained in importance here, in which a high degree of portability is ensured by small outer dimensions and compact design, while maintaining low weight.
  • High-pressure discharge lamps, which are used in the reflector lamps used require a high-voltage pulse of a few kV for ignition, and even several tens of kV for hot-ignition.
  • the present invention is therefore an object of the invention to provide a generic reflector high-pressure discharge lamp unit in a compact design for use in projection equipment, in the simple manner, the high-voltage strength of the lamp terminal of the lying in the light exit direction end the lamp shaft is guaranteed and at the same time the required strain relief of the high voltage cable is created.
  • the end of the second power supply or the connecting line to the second power supply to the end of the second high-voltage cable directly soldered and welded.
  • the end of the second high-voltage cable is embedded in a bore in the edge of the second base part.
  • the second base part can have a cylindrical attachment for extending the bore at the edge in the region of the bore.
  • This encapsulation of the junction of high voltage cable and power supply or interconnector ensures that at the required high voltages no free-standing metal parts are exposed, which could lead to a direct high-voltage flashover (air sparks), and all creepage distances are long enough to a surface sliding discharge, leading to a High voltage flashover could develop, to exclude.
  • a selected according to the required high voltage wall thickness of the attachment part of electrically non-conductive material additionally prevents high-voltage breakdown, so that when installing the reflector high-pressure discharge lamp unit in a projection device no special insulating distances are observed or additional electrical insulation is needed.
  • the diameter of the bore in the cylindrical appendix should advantageously be equal to or only slightly larger than the diameter of the insulated part of the high-voltage cable.
  • the end of the reflektorhalsfernen power supply or the end of the connecting line of the reflektorhalsfernen power supply from the end of the piston shaft of the high-pressure discharge lamp to the second base part is advantageously performed in the region of the second base part in a contact-safe groove.
  • the cylindrical attachment in the region of the bore is provided with a slot extending parallel to the bore which reaches to the groove.
  • the high voltage cable can also be advantageously fixed in the bore by a screw made of insulating material to achieve an even higher strain relief.
  • the bore extends advantageously parallel to the axis of the high-pressure discharge lamp and thus also parallel to the axis of the reflector. As a result, the space required by the reflector high-pressure discharge lamp unit in the projection device is kept as low as possible.
  • the designed as an attachment part second base part has for the purpose of radiation or light passage in each case an aperture on the radiation or light exit of the reflector facing and facing away. It is advantageous firmly connected to the reflector.
  • the second aperture of the attachment part is advantageously closed by a radiation-transmitting or translucent front screen. This prevents flammable objects from coming into contact with hot lamp parts. In the event of an explosion of the high-pressure discharge lamp, this front screen additionally protects sensitive optical components in the device from damage.
  • the windscreen provides an additional electrical Insulation of lying in the light exit direction end of the second lamp shaft of the discharge lamp and its power supply, so that the length can be kept compact in the light exit direction.
  • the windscreen can be attached to the attachment using an adhesive, such as a silicone adhesive, or mechanically held in place with clamps or a ring.
  • the header member can be additionally provided with one or more lateral openings to allow for a targeted controlled airflow, thermal critical locations, such as e.g. to cool the end of the second lamp shaft of the discharge lamp lying in the light exit direction when combined with an elliptical reflector.
  • a precisely adjusted installation of the lamp in an optical device, in particular a video and / or data projector, is facilitated in an advantageous manner by the attachment of reference points and threaded fasteners on the second base part.
  • the second base part designed as an attachment part is produced from an injection-moldable high-temperature plastic, this has the advantage over other materials, such as ceramics, that there is a high degree of flexibility with regard to the configuration of the geometric shape of the attachment part and a lesser weight is achieved.
  • the use of glass fiber reinforced plastic additionally advantageously increases the mechanical stability of the attachment part.
  • the material PEEK TM polyether ether ketones
  • PEEK TM polyether ether ketones
  • the inventive reflector-high-pressure discharge lamp unit 1 has a coated reflector 2 made of pressed glass with elliptical reflector shape, a short-arc high-pressure discharge lamp 3 with a filling of mercury halides and at least one noble gas and base parts 4, 5 and high voltage cable 6, 7.
  • the high-pressure discharge lamp 3 is composed of a lamp bulb 8 and two lamp shafts 9, 10 arranged at the two opposite ends of the lamp bulb 8, wherein electrode systems 13, 14 are sealed gas-tight into the lamp shafts 9, 10 via metal foils 11, 12.
  • the short-arc high-pressure discharge lamp 3 is arranged with its axis in the axis of the reflector 2 and fixed with its first lamp shaft 9 by means of a putty 15 in the neck 16 of the reflector 2.
  • the first base part 4 is fixed from non-conductive plastic. Via a first power supply 17, the metal foil 11 in the first lamp shaft 9 with the contacting system, not shown here in the first base part 4 is electrically connected. In turn, the first 6 of the two high-voltage cables 6, 7, via which the reflector high-pressure discharge lamp unit 1 is connected to an electronic ignition and operating system, is connected to this contacting system.
  • the metal foil 12 in the second lamp shaft 10 is connected at its one end to a second power supply 18.
  • the other end of this second power supply 18 is in turn electrically connected to the second high-voltage cable 7 and according to the invention embedded in an appendix 19 at the edge of the second socket part 5. Details of this connection are shown in the following figures.
  • This second base part 5 also made of non-conductive plastic has the shape of an attachment and is mounted in front of the radiation or light exit opening of the reflector 2 and fixedly connected to the edge thereof.
  • the second base part 5 has lateral ventilation openings 20 and a (not shown here), radiation and translucent front panel.
  • FIGS. 2 a and 2 b show an embodiment of the connection of the end of the second power supply 18 to the end of the second high-voltage cable 7 embedded in the second base part 5 in plan view and in a sectional side view.
  • the edge of the second base part 5 has an attachment 19 with a bore 21 parallel to the lamp and reflector axis.
  • the appendix 19 is provided with a slot 22 parallel to the bore 21.
  • the bore 21 has a diameter which is equal to the diameter of the insulated part of the high-voltage cable 7.
  • the end of the high voltage cable 7 is clamped.
  • the end of the high voltage cable 7 is additionally fixed by means of a screw 23 made of insulating material in the bore 21.
  • the high voltage cable 7 has a stripped tip 24 which is welded to the end of the second power supply 18.
  • the end region of the power supply 18 is in turn embedded in a groove 25 on the reflector 2 facing side of the second base part 5 touch-safe.
  • the bore 21 and the slot 22 extend up to and including the height of the groove 25. This makes it possible to introduce the end of the second power supply 18 together with the end of the second high voltage cable 7 in the welded state in the groove 25 and the bore 21 and then that second base part 5 fixed to the reflector 2 to connect. This leads to a high high-voltage strength of the lamp.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • X-Ray Techniques (AREA)
EP01907360A 2000-01-14 2001-01-12 Reflektor-hochdruckentladungslampen-einheit Expired - Lifetime EP1169723B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10001544 2000-01-14
DE10001544 2000-01-14
PCT/DE2001/000147 WO2001052298A1 (de) 2000-01-14 2001-01-12 Reflektor-hochdruckentladungslampen-einheit

Publications (2)

Publication Number Publication Date
EP1169723A1 EP1169723A1 (de) 2002-01-09
EP1169723B1 true EP1169723B1 (de) 2007-09-05

Family

ID=7627660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01907360A Expired - Lifetime EP1169723B1 (de) 2000-01-14 2001-01-12 Reflektor-hochdruckentladungslampen-einheit

Country Status (10)

Country Link
US (1) US6566815B2 (ja)
EP (1) EP1169723B1 (ja)
JP (1) JP2003520394A (ja)
KR (1) KR100808696B1 (ja)
CN (1) CN1229838C (ja)
AT (1) ATE372584T1 (ja)
CA (1) CA2366336A1 (ja)
DE (1) DE50112946D1 (ja)
TW (1) TW486722B (ja)
WO (1) WO2001052298A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4503200B2 (ja) * 2001-04-23 2010-07-14 オスラム・メルコ株式会社 反射鏡付放電ランプ
US7002285B2 (en) * 2003-01-03 2006-02-21 General Electric Company Discharge lamp with bulb fixture arrangement and method for manufacturing the same
DE102004032406A1 (de) * 2004-07-02 2006-02-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zur Auslegung einer Entladungslampe
JP4093211B2 (ja) * 2004-07-14 2008-06-04 セイコーエプソン株式会社 光源装置、およびプロジェクタ
CN1331003C (zh) * 2004-10-25 2007-08-08 罗筱泠 投影灯
US20060262537A1 (en) * 2005-05-17 2006-11-23 Lee John W Projection assembly
EA008954B1 (ru) * 2006-05-26 2007-10-26 Виктор Иванович Цай Газоразрядная зеркальная лампа
JP5131468B2 (ja) * 2007-04-12 2013-01-30 株式会社ニコン 放電ランプ、光源装置、及び露光装置
RU2496180C1 (ru) * 2012-03-29 2013-10-20 Вячеслав Анатольевич Ермошин Газоразрядная зеркальная лампа
RU200691U1 (ru) * 2020-09-29 2020-11-05 Общество с ограниченной ответственностью "НПФ СВЕТОВЫЕ РЕШЕНИЯ" Газоразрядная зеркальная лампа

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138731A (en) * 1962-09-12 1964-06-23 Norman C Beese Sealed beam high-intensity short arc lamp
US3364374A (en) * 1964-09-28 1968-01-16 Gen Electric Compact source lamp having electrode construction providing arc stabilization
DE2840031A1 (de) * 1978-09-14 1980-04-03 Patra Patent Treuhand Anordnung mit hochdruckentladungslampe und reflektor als baueinheit
DE3033688A1 (de) 1980-09-08 1982-04-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Anordnung mit hochdruckentladungslampe und reflektor als baueinheit
DE3641852A1 (de) 1986-12-08 1988-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kfz-scheinwerfer-einheit
US4920459A (en) * 1988-12-21 1990-04-24 Gte Products Corporation Arc discharge headlamp system
US5621267A (en) 1995-03-22 1997-04-15 Ilc Technology, Inc. High-power metal halide reflector lamp
US5604406A (en) * 1995-03-29 1997-02-18 Intermacon Ag Portable lamp for use with rapid start metal halide bulbs
CN1646797A (zh) 2002-03-01 2005-07-27 普尔泰科有限公司 气流配置装置和从气流中除去污染物的装置的改进

Also Published As

Publication number Publication date
CN1229838C (zh) 2005-11-30
EP1169723A1 (de) 2002-01-09
US6566815B2 (en) 2003-05-20
TW486722B (en) 2002-05-11
CN1358323A (zh) 2002-07-10
CA2366336A1 (en) 2001-07-19
KR20010102482A (ko) 2001-11-15
ATE372584T1 (de) 2007-09-15
DE50112946D1 (de) 2007-10-18
WO2001052298A1 (de) 2001-07-19
KR100808696B1 (ko) 2008-02-29
US20020158581A1 (en) 2002-10-31
JP2003520394A (ja) 2003-07-02

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