WO2008092503A1 - Lampe à réflecteur - Google Patents

Lampe à réflecteur Download PDF

Info

Publication number
WO2008092503A1
WO2008092503A1 PCT/EP2007/050941 EP2007050941W WO2008092503A1 WO 2008092503 A1 WO2008092503 A1 WO 2008092503A1 EP 2007050941 W EP2007050941 W EP 2007050941W WO 2008092503 A1 WO2008092503 A1 WO 2008092503A1
Authority
WO
WIPO (PCT)
Prior art keywords
burner
reflector
air flow
base
lamp according
Prior art date
Application number
PCT/EP2007/050941
Other languages
German (de)
English (en)
Inventor
André NAUEN
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Osram Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Priority to PCT/EP2007/050941 priority Critical patent/WO2008092503A1/fr
Priority to TW097103202A priority patent/TW200903563A/zh
Publication of WO2008092503A1 publication Critical patent/WO2008092503A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2026—Gas discharge type light sources, e.g. arcs
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/025—Associated optical elements
    • 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

Definitions

  • the invention relates to a reflector lamp, in particular for projectors for data or video projection, with a burner which is at least partially surrounded by a reflector, which is connected via a reflector neck with a base, wherein at least one ventilation opening is provided between the burner and reflector neck ,
  • the reflector lamp according to the invention can be used in principle in a variety of different optical applications as a light source.
  • the Hauptanassemble ⁇ Biet the reflector lamp may lie in the projection ⁇ and medical technology, for example, projectors or endoscopes.
  • a disadvantage of such reflector lamps is that the cooling often does not meet the high demands on the cooling effect at substantially perpendicular to the lamp longitudinal axis directed to the burner cooling air flow, so that it comes to a reduced life of the reflector lamp in the projector.
  • the invention has for its object to provide a reflector ⁇ lamp, in which over conventional solutions more efficient cooling is possible.
  • a reflector lamp in particular ⁇ for projectors for data or video projection, with a burner which is at least partially surrounded by a reflector which is connected via a reflector neck with a base such that between burner and reflector neck at least one Ventilation opening is provided, wherein a cooling air flow is guided on the base side through the ventilation opening, which extends at least from ⁇ sections along the burner.
  • the cooling air flow is directed from the base side into the reflector and / or generated by suction from the base side and runs along the burner.
  • the resulting resultie ⁇ -saving cooling is efficient and allows a very good, large torch cooling, so that the maximum effi ⁇ ciency and life of the reflector lamp is guaranteed.
  • Even with very small fans to air currents can be achieved at a flow rate of up to 3 m / s, while for the torch cooling typically a flow rate of 1 m / s be ⁇ already is sufficient.
  • the noise development of the cooling can be reduced or a burner with a higher power density can be used.
  • a combination of blowing and sucking cooling air into and out of the reflector is also possible.
  • the reflector lamp has an outer bulb which surrounds the burner at least in sections, wherein the cooling air flow is guided at least in sections between the burner and outer bulb.
  • the shaping of the outer envelope and / or its positio ⁇ discrimination of the desired cooling air flow with respect to the burner preferably correspondingly optimized.
  • the outer bulb has a substantially rotationally symmetrical cross section.
  • the cross section of the ventilation opening between burner and outer bulb is for this reason along the burner longitudinal axis preferably reduced from the base to the base ⁇ far end, so that correspondingly increases the flow velocity from the base to the base end remote from the burner and the reduced natural temperature gradient.
  • This can be achieved, for example, by displacing the outer piston, which is adapted to the contour of the burner and spaced from it, along the burner axis.
  • the cooling air flow in this area is preferably reduced. This may be due to a flow resistance in the Re ⁇ reflector, for example, by partial closure of the lower half space between burner shaft and Reflek ⁇ tor, an off-axis position of the outer bulb with respect to the burner with a large flow area on the top and a small flow area on the bottom, or not rotationally symmetrical outer bulb can be achieved.
  • the flow resistance can be designed as a pendulum-like about the lamp longitudinal axis pivotable flow body, for example made of sheet metal or ceramic, which aligns due to gravity regardless of the installation position of the lamp down, so that on the bottom verrin ⁇ gerter flow cross section is achieved.
  • the Bren ⁇ ner is arranged without outer bulb in the reflector.
  • the burner base can be prevented in this variant example, by a flow body on the underside of the burner that closes the ventilation ⁇ opening between the burner and reflector neck ab baini ⁇ se.
  • a plug matches Ver ⁇ application that closes the vent one side.
  • the burner is preferably designed as a high-pressure discharge lamp, in particular as a high-pressure mercury discharge lamp.
  • FIG. 1 is a side view of a reflector torlampe invention
  • FIG. 1 shows a schematic representation of a reflector lamp 1 according to the invention with a burner 2, which is partially surrounded by a substantially ellipsoidförmi- reflector 4 made of pressed glass.
  • the reflector 4 is provided on an inner surface 6 (see FIG. 2) with a reflective coating and inserted into an accommodating portion 10 of a base 12 via an approximately cylindrical reflector neck 8.
  • the base 12 has a substantially cylindrical base body 14 which is provided on the lamp side with two diametrically arranged, approximately V-shaped recesses 16.
  • the burner 2 is opposite to the installation position of the reflector 4 comparable axially sets in the base 12 is fixed so that a ventilation ⁇ opening 18 between the burner 2 and the reflector neck 8 ent ⁇ is, by means of an unillustrated Venti ⁇ lators, such as a to to the base 12 on ⁇ closing axial fan, a cooling air flow is guided in the reflector lamp 1.
  • the cooling air flow is guided on the base side through the ventilation opening 18 and runs along the burner 2. This will be explained in more detail below with reference to FIG. 2, which shows a longitudinal section along the line CC in FIG.
  • the cooling air flow is in the dargestell ⁇ th embodiment - as indicated by arrows - directed from the base side in the reflector 4 and extends along the burner 2.
  • the resulting cooling is efficient and allows a very good burner cooling, so that the maximum efficiency and life of the reflector lamp 1 is ensured.
  • air flows with a flow velocity of up to 3 m / s can be represented, while for the piston cooling typically a flow speed of 1 m / s is already sufficient.
  • the noise of the cooling can be reduced or a burner 2 can be used with a higher power density.
  • the cooling air flow is generated by base-side suction or a combination of blowing and suction.
  • a burner 2 a high pressure discharge lamp in the short arc technology Ver ⁇ application.
  • This has a discharge vessel 20 made of quartz glass ⁇ with an interior 22 and two diametrically arranged, sealed torch shafts 24, 26, each having a power supply 28, 30 have.
  • two diametrically arranged, not shown E- protrude lektroden that are comparable connected via a molybdenum foil or directly in each case with one of the supply leads 28, 30 and between which forms a gas discharge during the Lampenbe ⁇ drive.
  • the reflector lamp 1 is provided with a rotationally symmetrical outer bulb 32 which surrounds the burner 2 in sections, wherein the cooling air flow sections Zvi ⁇ rule burner 2 and the outer piston is guided 32nd
  • the outer piston 32 is adjacent to the reflector 4 and is made of optically inactive quartz glass that can withstand the temperature entspre ⁇ sponding load.
  • the attachment of the outer bulb 32 takes place on the burner shaft 24 facing away from the base 12 by melting at two points (not shown), so that an outflow cross section remains free.
  • the shape of the outer bulb 32 and its a xiale position relative to the burner 2 is optimized according to the desired cooling air flow.
  • the cross section of the vent 18 between the burner 2 and outer bulb 32 along the burner longitudinal axis is reduced from the burner center to the base burner shaft 24 away, so that correspondingly increases the flow velocity and the reduced natural temperature gradient.
  • the outer bulb 32 is axially displaced along the burner axis in the direction of the base 12. A uniform in ⁇ We sentlichen cooling effect is achieved with a relatively small temperature gradient.
  • the cooling air flow is reduced at the bottom in an embodiment, not shown.
  • This can be achieved by a flow resistance in the reflector neck 8, for example by partially closing the lower half space between burner shaft 26 and reflector neck 8, an off-axis position of the outer bulb 32 with respect to the burner 2 with a large flow cross section on the upper side and a small flow cross section on the underside, or a non-rotationally symmetrical outer bulb 32 can be ensured.
  • the reflector lamp 1 according to the invention is not limited to the embodiment described with outer bulb 32, but the burner 2 can be arranged without outer bulb 32 in the reflector 4. Overcooling of the burner bottom can be prevented in this variant, for example, by a flow body on the underside of the burner shaft 26, which closes the ventilation opening 18 between the burner 2 and reflector neck 8 sections.
  • a reflector lamp 1 in particular for projectors for data or video projection, with a burner 2, which is at least partially surrounded by a Re ⁇ reflector 4, which is connected via a reflector neck 8 with a base 12, wherein between burner and reflector neck 8 at least one vent opening Ii is provided.
  • a cooling air stream is guided so-ckel warmth through the vent 18, which extends to ⁇ least in sections along the burner. 2

Abstract

L'invention concerne une lampe à réflecteur (1), notamment pour des projecteurs destinés à la projection de données ou de vidéos, cette lampe comportant un brûleur (2) au moins partiellement entouré d'un réflecteur (4) relié au culot (12) par un col (8), au moins une ouverture d'aération (18) étant prévue entre le brûleur (2) et le col (8) du réflecteur. Selon l'invention, un courant d'air frais est guidé dans le culot à travers l'ouverture d'aération, ce courant s'écoulant au moins partiellement le long du brûleur (2).
PCT/EP2007/050941 2007-01-31 2007-01-31 Lampe à réflecteur WO2008092503A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2007/050941 WO2008092503A1 (fr) 2007-01-31 2007-01-31 Lampe à réflecteur
TW097103202A TW200903563A (en) 2007-01-31 2008-01-29 Reflector lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/050941 WO2008092503A1 (fr) 2007-01-31 2007-01-31 Lampe à réflecteur

Publications (1)

Publication Number Publication Date
WO2008092503A1 true WO2008092503A1 (fr) 2008-08-07

Family

ID=38523788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/050941 WO2008092503A1 (fr) 2007-01-31 2007-01-31 Lampe à réflecteur

Country Status (2)

Country Link
TW (1) TW200903563A (fr)
WO (1) WO2008092503A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180503A1 (fr) * 2008-10-21 2010-04-28 Koninklijke Philips Electronics N.V. Lampe de décharge gazeuse haute pression encastrée
CN102102837A (zh) * 2010-12-15 2011-06-22 东霖电子（惠州）有限公司 高效散热led路灯

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB919950A (en) * 1960-11-05 1963-02-27 Zeiss Ikon Ag Improvements in or relating to projection lamps
US3180981A (en) * 1961-10-12 1965-04-27 Zeiss Ikon Ag Air cooled projection lamp
US3703635A (en) * 1970-09-08 1972-11-21 E Systems Inc Zoom light
EP0636865A2 (fr) * 1993-07-28 1995-02-01 Jasco Corporation Unité d'éclairage et analyseur optique l'utilisant
WO1998014732A1 (fr) * 1996-10-02 1998-04-09 Space Cannon Vh S.R.L. Dispositif de projection pour un faisceau lumineux a plusieurs couleurs
WO2000060643A1 (fr) * 1999-03-31 2000-10-12 Imax Corporation Procede de refroidissement d'une lampe a arc
EP1178510A1 (fr) * 2000-08-04 2002-02-06 Ushiodenki Kabushiki Kaisha Lampe de projecteur et procédé de réglage de la luminosité
WO2003056605A2 (fr) * 2002-01-02 2003-07-10 Philips Intellectual Property & Standards Gmbh Lampe a decharge de gaz haute pression refroidie
DE202005011364U1 (de) * 2005-07-19 2005-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Reflektorlampe
US20060061995A1 (en) * 2004-09-21 2006-03-23 Ying-Chieh Chen Cooling air gathering plate

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB919950A (en) * 1960-11-05 1963-02-27 Zeiss Ikon Ag Improvements in or relating to projection lamps
US3180981A (en) * 1961-10-12 1965-04-27 Zeiss Ikon Ag Air cooled projection lamp
US3703635A (en) * 1970-09-08 1972-11-21 E Systems Inc Zoom light
EP0636865A2 (fr) * 1993-07-28 1995-02-01 Jasco Corporation Unité d'éclairage et analyseur optique l'utilisant
WO1998014732A1 (fr) * 1996-10-02 1998-04-09 Space Cannon Vh S.R.L. Dispositif de projection pour un faisceau lumineux a plusieurs couleurs
WO2000060643A1 (fr) * 1999-03-31 2000-10-12 Imax Corporation Procede de refroidissement d'une lampe a arc
EP1178510A1 (fr) * 2000-08-04 2002-02-06 Ushiodenki Kabushiki Kaisha Lampe de projecteur et procédé de réglage de la luminosité
WO2003056605A2 (fr) * 2002-01-02 2003-07-10 Philips Intellectual Property & Standards Gmbh Lampe a decharge de gaz haute pression refroidie
US20060061995A1 (en) * 2004-09-21 2006-03-23 Ying-Chieh Chen Cooling air gathering plate
DE202005011364U1 (de) * 2005-07-19 2005-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Reflektorlampe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180503A1 (fr) * 2008-10-21 2010-04-28 Koninklijke Philips Electronics N.V. Lampe de décharge gazeuse haute pression encastrée
WO2010046805A3 (fr) * 2008-10-21 2010-09-23 Koninklijke Philips Electronics N.V. Lampe à décharge de gaz haute pression culottée
CN102203901B (zh) * 2008-10-21 2014-06-25 皇家飞利浦电子股份有限公司 带插座的高压气体放电灯
US9111710B2 (en) 2008-10-21 2015-08-18 Koninklijke Philips N.V. Socketed high pressure gas discharge lamp
CN102102837A (zh) * 2010-12-15 2011-06-22 东霖电子（惠州）有限公司 高效散热led路灯

Also Published As

Publication number Publication date
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