EP0569824A1 - Lampe électrique - Google Patents

Lampe électrique Download PDF

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Publication number
EP0569824A1
EP0569824A1 EP93107223A EP93107223A EP0569824A1 EP 0569824 A1 EP0569824 A1 EP 0569824A1 EP 93107223 A EP93107223 A EP 93107223A EP 93107223 A EP93107223 A EP 93107223A EP 0569824 A1 EP0569824 A1 EP 0569824A1
Authority
EP
European Patent Office
Prior art keywords
lamp
bulb
cooling gas
lamp bulb
electric 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
EP93107223A
Other languages
German (de)
English (en)
Other versions
EP0569824B1 (fr
Inventor
Ralf Seedorf
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 EP0569824A1 publication Critical patent/EP0569824A1/fr
Application granted granted Critical
Publication of EP0569824B1 publication Critical patent/EP0569824B1/fr
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
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp

Definitions

  • the invention relates to an electric lamp according to the preamble of claim 1.
  • Such lamps are, for example, halogen incandescent lamps with a quartz glass bulb or high-pressure discharge lamps with a discharge vessel made of quartz glass, in which the lamp bulb or the discharge vessel is sealed by means of metal foil seals.
  • the incandescent filament or the electrodes are supplied with electrical energy via these melted-on metal foils (molybdenum foils), by means of which the discharge vessel is closed in a gastight manner, and via the power supply lines welded to them.
  • EP-A 184 867 discloses forced cooling of the lamp from the outside, which likewise ensures protection against oxidation of the melted-in metal foils and the power supply parts welded to them.
  • This forced cooling essentially consists of a heat-dissipating steel wool that surrounds the metal foil melts.
  • the temperature at the lamp ends in the immediate vicinity of the metal pins protruding from them can be reduced to such an extent that no appreciable oxidation occurs on the power supply parts of the lamp.
  • only the lamp bulb ends are cooled in the cooling device according to the invention, so that the processes taking place within the lamp bulb, such as, for example, the halogen cycle process or the filling composition in the gas discharge, are not impaired.
  • the cooling device according to the invention enables a compact design for the lamps, since they do not change the outer dimensions of the lamps and there is no need for an envelope bulb.
  • a high-pressure discharge lamp with a base on one side is shown schematically in FIG. It has a discharge vessel 1 made of quartz glass with two diametrically arranged ends 1a, 1b, in each of which a molybdenum foil 2a, 2b is melted in a gas-tight manner.
  • a tungsten electrode 3a, 3b, which extends into the discharge space 1c, and a metal pin 4a, 4b, which protrudes from the discharge vessel 1a, 1b and consists of molybdenum, are welded to the molybdenum foils 2a, 2b.
  • the discharge vessel 1 is fixed at its end 1a in a G 22 base 5 made of ceramic.
  • the base 5 has two metallic contact pins 6a, 6b for the electrical voltage supply of the lamp.
  • Each contact pin 6a, 6b is in each case electrically conductively connected to one of the molybdenum pins 4a, 4b protruding from the discharge vessel via a hollow, tubular power supply 7a, 7b.
  • the tubular power supply lines 7a, 7b are each welded to the corresponding molybdenum pin 4a, 4b and guided to the contact pins 6a, 6b by means of bushings in the base 5.
  • the contact pins 6a, 6b have matching receptacles, into each of which one end of the corresponding power supply 7a, 7b is inserted and welded or soldered to the contact pin 6a, 6b.
  • the lamp base 5 To cool the lamp ends 1a, 1b, the lamp base 5 has two laterally arranged cooling gas connections 8a, 8b, each of which is connected to one of the hollow power supply lines 7a and 7b.
  • the tubular power supply lines 7a, 7b are made of nickel and have an outside diameter of approximately 3 mm and a wall thickness of approximately 0.5 mm in a 1200 W high-pressure discharge lamp.
  • the ends of these current leads 7a, 7b which are welded to the molybdenum pins 4a, 4b, are shaped in such a way that the cooling gas flow is directed onto the lamp bulb ends 1a, 1b.
  • a ventilation opening 9 is also provided in the lamp base 5 so that the cooling gas stream can escape from the tubular power supply 7a.
  • the cooling gas preferably air or nitrogen, is blown by means of a blower (not shown) through the connections 8a, 8b and the hollow current leads 7a, 7b and directed onto the lamp bulb ends 1a, 1b.
  • FIG. 2 shows a schematic illustration of a high-pressure discharge lamp based on one side, according to a second exemplary embodiment.
  • This second exemplary embodiment differs from the first exemplary embodiment described above only in that the ends 1a, 1b of the discharge vessel are sealed with a glass solder 10 in the region of the molybdenum pins 4a, 4b protruding from them.
  • the two exemplary embodiments are the same in all other details.
  • the glass solder 10 offers the particularly vulnerable welding points between the molybdenum foils 2a, 2b and the molybdenum pins 4a, 4b an additional protection against oxidation.
  • FIG. 3 shows a schematic illustration of a high-pressure discharge lamp according to the invention, which is capped on one side, in accordance with a third exemplary embodiment. It differs from the first exemplary embodiment only in the area of the lamp base 5 '.
  • the lamp base 5 ' here has no laterally arranged cooling gas connections as in the first exemplary embodiment.
  • the cooling gas is here supplied to the tubular current leads 7a ', 7b' via the electrical contact pins 6a ', 6b' which protrude from the lamp base 5 '.
  • the contact pins 6a ', 6b', into which the tubular current leads 7a ', 7b' open, are also tubular.
  • the electrical contact pins 6a ', 6b' thus serve both for the power supply and for the supply of cooling gas for the high-pressure discharge lamp.
  • the cooling gas used is preferably air or an inert gas such as e.g. Nitrogen, which is supplied to the lamp by means of a blower (not shown) via the lamp holder (not shown).
  • an inert gas such as e.g. Nitrogen
  • the invention is not limited to the exemplary embodiments specified here. It can also be used, for example, on thermally highly stressed, single-ended halogen incandescent lamps. Furthermore, the invention can be used with minor adaptations even for thermally heavily loaded, double-ended electrical lamps (high-pressure discharge lamps, halogen incandescent lamps).
  • tubular power supply lines can also consist of another heat-resistant metal, for example of stainless steel.
  • the dimensions of these power supplies are not very critical. For example, their outside diameter can be between 2 - 4 mm and their wall thickness can be between 0.4 and 1.0 mm.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP93107223A 1992-05-11 1993-05-04 Lampe électrique Expired - Lifetime EP0569824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9206314U 1992-05-11
DE9206314U DE9206314U1 (de) 1992-05-11 1992-05-11 Elektrische Lampe

Publications (2)

Publication Number Publication Date
EP0569824A1 true EP0569824A1 (fr) 1993-11-18
EP0569824B1 EP0569824B1 (fr) 1996-12-04

Family

ID=6879351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107223A Expired - Lifetime EP0569824B1 (fr) 1992-05-11 1993-05-04 Lampe électrique

Country Status (4)

Country Link
US (1) US5493168A (fr)
EP (1) EP0569824B1 (fr)
JP (1) JPH065102U (fr)
DE (2) DE9206314U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055180A1 (de) 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung Stromzuführungssystem

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046331U (fr) * 1973-08-21 1975-05-09
JPS5046337U (fr) * 1973-08-27 1975-05-09
JPS53148836U (fr) * 1977-04-27 1978-11-22
JPS5861407U (ja) * 1981-10-19 1983-04-25 ミドリ安全株式会社 作業衣
JPH0527007U (ja) * 1991-03-11 1993-04-06 三喜知 斎藤 水滴溜り付防水布製前掛け
EP0856870B1 (fr) * 1997-01-31 2001-10-31 Heraeus Noblelight GmbH Radiateur optique
JP3381566B2 (ja) * 1997-07-18 2003-03-04 ウシオ電機株式会社 光源ユニット
KR20060013395A (ko) * 2003-05-12 2006-02-09 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 반사기 및 냉각 장치를 구비한 고압 방전 램프
DE102005053469A1 (de) * 2005-07-13 2007-02-08 Perkinelmer Optoelectronics Gmbh & Co.Kg Blitzlampenaufnahme, Blitzlampenaufbau, Sockel, elektrisches Gerät
KR102157236B1 (ko) * 2006-09-01 2020-09-17 가부시키가이샤 니콘 방전램프
US9165738B2 (en) 2007-04-12 2015-10-20 Nikon Corporation Discharge lamp, connecting cable, light source apparatus, and exposure apparatus
EP2985526B1 (fr) * 2007-04-12 2019-07-24 Nikon Corporation Lampe à décharge, appareil de source de lumière et appareil d'exposition
JP7427527B2 (ja) * 2020-05-25 2024-02-05 キヤノン株式会社 露光装置及び物品の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290097A (en) * 1978-09-14 1981-09-15 Robert Bosch Gmbh High-pressure discharge lamp and reflector combination
US4405882A (en) * 1980-12-08 1983-09-20 Hughes Aircraft Company Air flow sensor
US4695757A (en) * 1982-05-24 1987-09-22 Fusion Systems Corporation Method and apparatus for cooling electrodeless lamps
US4967330A (en) * 1990-03-16 1990-10-30 Bell Howard F LED lamp with open encasement
EP0455295A1 (fr) * 1990-05-01 1991-11-06 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558357A (en) * 1946-09-20 1951-06-26 Rca Corp Lead for electron discharge devices
JPS50103876A (fr) * 1974-01-30 1975-08-16
JPS5132969U (fr) * 1974-09-03 1976-03-11
US4023060A (en) * 1975-11-28 1977-05-10 Gte Sylvania Incorporated Ruggedized, high power tungsten-halogen lamp
GB2122024B (en) * 1982-05-28 1986-01-29 Gen Electric Co Plc Lamp stems
GB8303074D0 (en) * 1983-02-04 1983-03-09 Gen Electric Co Plc Electric discharge lamps
US4678959A (en) * 1984-11-15 1987-07-07 U.S. Philips Corporation Device for cooling the pinch seal of an electric lamp, and an electric lamp and an irradiation apparatus provided with this cooling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290097A (en) * 1978-09-14 1981-09-15 Robert Bosch Gmbh High-pressure discharge lamp and reflector combination
US4405882A (en) * 1980-12-08 1983-09-20 Hughes Aircraft Company Air flow sensor
US4695757A (en) * 1982-05-24 1987-09-22 Fusion Systems Corporation Method and apparatus for cooling electrodeless lamps
US4967330A (en) * 1990-03-16 1990-10-30 Bell Howard F LED lamp with open encasement
EP0455295A1 (fr) * 1990-05-01 1991-11-06 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055180A1 (de) 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung Stromzuführungssystem

Also Published As

Publication number Publication date
DE59304645D1 (de) 1997-01-16
EP0569824B1 (fr) 1996-12-04
JPH065102U (ja) 1994-01-21
US5493168A (en) 1996-02-20
DE9206314U1 (de) 1992-07-02

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