EP1675157A3 - Vessel for discharge lamp - Google Patents

Vessel for discharge lamp Download PDF

Info

Publication number
EP1675157A3
EP1675157A3 EP05027022A EP05027022A EP1675157A3 EP 1675157 A3 EP1675157 A3 EP 1675157A3 EP 05027022 A EP05027022 A EP 05027022A EP 05027022 A EP05027022 A EP 05027022A EP 1675157 A3 EP1675157 A3 EP 1675157A3
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
central region
piston
outer contour
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
EP05027022A
Other languages
German (de)
French (fr)
Other versions
EP1675157B1 (en
EP1675157A2 (en
Inventor
Henning Dr. Rehn
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 EP1675157A2 publication Critical patent/EP1675157A2/en
Publication of EP1675157A3 publication Critical patent/EP1675157A3/en
Application granted granted Critical
Publication of EP1675157B1 publication Critical patent/EP1675157B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • 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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

Offenbart ist ein Kolben (2) für eine Entladungslampe, der einen inneren Brennraum (3) umfasst, wobei die Außenkontur des Kolbens und des Brennraums je einen mittleren Bereich (2a, 3a) und daran anschließende Randbereiche (2b, 3b) aufweisen, wobei jeder mittlere Bereich torusförmig ausgebildet ist. Jeder Randbereich des Brennraums kann kegelstumpfförmig von dem mittleren Bereich (3a) weg rotationssymmetrisch zur Kolbenachse mit einem bestimmten Kegelwinkel (α) ausgebildet sein. Erfindungsgemäß weisen die Mittelpunkte der Kreissegmente, die den mittleren Bereich der Außenkontur und des Brennraums bilden, in Richtung der Kolbenachse einen Abstand (z) auf; und/oder die Kegelwinkel der beiden Randbereiche des Brennraums sind ungleich; und/oder die Kolbenachse liegt zwischen dem Kreissegment, welches den mittleren Bereich der Außenkontur und/oder des Brennraums bildet, und dessen Mittelpunkt.

Figure imgaf001
Disclosed is a piston (2) for a discharge lamp, which comprises an inner combustion chamber (3), wherein the outer contour of the piston and the combustion chamber each have a central region (2a, 3a) and adjoining edge regions (2b, 3b), each middle region is formed torus-shaped. Each edge region of the combustion chamber can be formed frustoconically away from the central region (3a) rotationally symmetrical to the piston axis with a certain cone angle (α). According to the invention, the centers of the circle segments, which form the central region of the outer contour and the combustion chamber, in the direction of the piston axis at a distance (z); and / or the cone angles of the two edge regions of the combustion chamber are unequal; and / or the piston axis lies between the circular segment, which forms the central region of the outer contour and / or the combustion chamber, and its center.
Figure imgaf001
EP05027022A 2004-12-23 2005-12-09 Vessel for discharge lamp Not-in-force EP1675157B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004062265A DE102004062265A1 (en) 2004-12-23 2004-12-23 Piston for discharge lamps

Publications (3)

Publication Number Publication Date
EP1675157A2 EP1675157A2 (en) 2006-06-28
EP1675157A3 true EP1675157A3 (en) 2007-06-06
EP1675157B1 EP1675157B1 (en) 2010-02-24

Family

ID=35851973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05027022A Not-in-force EP1675157B1 (en) 2004-12-23 2005-12-09 Vessel for discharge lamp

Country Status (8)

Country Link
US (1) US7545099B2 (en)
EP (1) EP1675157B1 (en)
JP (1) JP2006179489A (en)
CN (1) CN1828821B (en)
AT (1) ATE459093T1 (en)
CA (1) CA2531085A1 (en)
DE (2) DE102004062265A1 (en)
TW (1) TW200636796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849138B (en) * 2007-11-06 2012-05-30 皇家飞利浦电子股份有限公司 Illumination system, high-pressure discharge lamp and image projection system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5272983B2 (en) * 2009-09-11 2013-08-28 ウシオ電機株式会社 Light source device
US9552976B2 (en) 2013-05-10 2017-01-24 General Electric Company Optimized HID arc tube geometry

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541197A (en) * 1991-08-06 1993-02-19 Ushio Inc Short arc type metal halide lamp light source device
EP1104009A1 (en) * 1999-06-08 2001-05-30 Ushio Denki Kabushiki Kaisya Light source device
US6246170B1 (en) * 1997-11-18 2001-06-12 Canon Kabushiki Kaisha Light source apparatus with a spherical optical member

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11238488A (en) * 1997-06-06 1999-08-31 Toshiba Lighting & Technology Corp Metal halide discharge lamp, metal halide discharge lamp lighting device and lighting system
JPH10340704A (en) * 1997-06-06 1998-12-22 Stanley Electric Co Ltd Discharge lamp for automobile
DE10151267A1 (en) * 2001-10-17 2003-04-30 Philips Corp Intellectual Pty lighting unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541197A (en) * 1991-08-06 1993-02-19 Ushio Inc Short arc type metal halide lamp light source device
US6246170B1 (en) * 1997-11-18 2001-06-12 Canon Kabushiki Kaisha Light source apparatus with a spherical optical member
EP1104009A1 (en) * 1999-06-08 2001-05-30 Ushio Denki Kabushiki Kaisya Light source device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849138B (en) * 2007-11-06 2012-05-30 皇家飞利浦电子股份有限公司 Illumination system, high-pressure discharge lamp and image projection system

Also Published As

Publication number Publication date
EP1675157B1 (en) 2010-02-24
ATE459093T1 (en) 2010-03-15
TW200636796A (en) 2006-10-16
EP1675157A2 (en) 2006-06-28
US20060220560A1 (en) 2006-10-05
CA2531085A1 (en) 2006-06-23
DE102004062265A1 (en) 2006-07-13
US7545099B2 (en) 2009-06-09
CN1828821A (en) 2006-09-06
DE502005009080D1 (en) 2010-04-08
CN1828821B (en) 2011-04-27
JP2006179489A (en) 2006-07-06

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