EP2745308B1 - Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe - Google Patents

Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe Download PDF

Info

Publication number
EP2745308B1
EP2745308B1 EP12788277.7A EP12788277A EP2745308B1 EP 2745308 B1 EP2745308 B1 EP 2745308B1 EP 12788277 A EP12788277 A EP 12788277A EP 2745308 B1 EP2745308 B1 EP 2745308B1
Authority
EP
European Patent Office
Prior art keywords
diffusing
lamp
reflector
headlamp
light emitted
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.)
Not-in-force
Application number
EP12788277.7A
Other languages
German (de)
English (en)
Other versions
EP2745308A1 (fr
Inventor
Lukas Kuepper
Volker KOLAUCH
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.)
Philips GmbH
Koninklijke Philips NV
Original Assignee
Philips Deutschland GmbH
Koninklijke Philips NV
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 Philips Deutschland GmbH, Koninklijke Philips NV filed Critical Philips Deutschland GmbH
Publication of EP2745308A1 publication Critical patent/EP2745308A1/fr
Application granted granted Critical
Publication of EP2745308B1 publication Critical patent/EP2745308B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • 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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Claims (11)

  1. Lampe à décharge, appropriée pour une utilisation dans des phares d'automobile, comprenant :
    - un récipient de décharge (16) avec des électrodes (20) pour générer un arc électrique,
    - où ledit récipient de décharge (16) comprend une charge comprenant au moins un gaz rare et des halogénures,
    - une enveloppe extérieure transparente (18) prévue autour dudit récipient de décharge (16), où ladite lampe à décharge comprend en outre une partie de diffusion (24),
    - où ladite partie de diffusion (24) est prévue sur l'extérieur dudit récipient de décharge (16), ou sur l'intérieur ou l'extérieur de ladite enveloppe extérieure (18), et
    - où la partie de diffusion est agencée de sorte qu'au moins une partie de la lumière émise au-dessous d'une horizontale, l'horizontale étant définie par la position de fonctionnement de la lampe à décharge dans un phare, soit diffusée au niveau de ladite partie de diffusion, et de sorte que la lumière émise au-dessus de ladite horizontale ne soit pas diffusée au niveau de ladite partie de diffusion.
  2. Lampe à décharge selon la revendication 1, où
    - ladite partie de diffusion (24) est continue,
    - et où une partie de non diffusion est agencée autour de ladite partie de diffusion.
  3. Lampe à décharge selon la revendication 1 ou 2, où
    - ledit récipient de décharge (16) et/ou ladite enveloppe extérieure (18) sont constitués de verre de quartz,
    - et ladite partie de diffusion (24) comprend une surface rugueuse en verre de quartz.
  4. Lampe à décharge selon l'une des revendications précédentes, où
    - ladite partie de diffusion (24) est agencée en tant que fenêtre de diffusion (24) prévue uniquement sur une partie d'une partie inférieure dudit récipient de décharge (16) ou de l'enveloppe extérieure (18).
  5. Lampe à décharge selon la revendication 4, où
    - ladite fenêtre de diffusion (24) est agencée de manière à recouvrir uniquement une partie d'un espace entre lesdites électrodes (20).
  6. Lampe à décharge selon l'une des revendications 4 et 5, où
    - ladite fenêtre de diffusion (24) a une longueur axiale qui est égale à 1 à 3 fois la distance (d) entre les électrodes (20).
  7. Phare comprenant au moins
    - une lampe à décharge (10) selon l'une des revendications précédentes,
    - et un réflecteur (32), où ladite lampe (10) est agencée dans ledit réflecteur (32) de sorte que la lumière émise par ladite lampe (10) soit réfléchie par ledit réflecteur (32) pour former un motif de répartition de lumière résultant,
    - où ledit réflecteur (32) comprend au moins une partie supérieure de réflecteur (36) réfléchissant la lumière émise par ladite lampe (10) au-dessus d'une horizontale, et une partie inférieure de réflecteur (38) réfléchissant la lumière émise par ladite lampe (10) au-dessous d'une horizontale,
    - et où ladite partie de diffusion (24) est agencée de sorte qu'au moins une partie de la lumière réfléchie au niveau de ladite partie inférieure de réflecteur (38) soit diffusée, et de sorte que la lumière réfléchie au niveau de ladite partie supérieure de réflecteur (36) ne soit pas diffusée.
  8. Phare selon la revendication 7, où
    - ledit phare est disposé de manière à former la lumière émise par ladite lampe (10) en un motif de répartition de lumière résultant comprenant une ligne de coupure clair/sombre.
  9. Phare selon la revendication 8, ledit phare comprenant en outre un obturateur (40) agencé pour réaliser ladite ligne de coupure clair/sombre.
  10. Phare selon l'une des revendications 7 à 9, où
    - ledit réflecteur (32) est formé de sorte qu'une première partie inférieure de réflecteur (48) de ladite partie inférieure de réflecteur (38) réfléchisse la lumière émise par ladite lampe (10) pour former des images centrales (50) projetées dans une région centrale dudit motif de répartition de lumière,
    - où ladite partie de diffusion (24) est agencée de sorte que la lumière émise par ladite lampe (10) devant être réfléchie au niveau de ladite première partie inférieure de réflecteur (48) soit diffusée.
  11. Phare selon la revendication 10, où
    - ladite première partie inférieure de réflecteur (48) est agencée à une position axialement derrière un interstice entre lesdites électrodes (20).
EP12788277.7A 2011-10-04 2012-09-28 Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe Not-in-force EP2745308B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161542947P 2011-10-04 2011-10-04
PCT/IB2012/055193 WO2013050914A1 (fr) 2011-10-04 2012-09-28 Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe

Publications (2)

Publication Number Publication Date
EP2745308A1 EP2745308A1 (fr) 2014-06-25
EP2745308B1 true EP2745308B1 (fr) 2015-12-09

Family

ID=47215682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12788277.7A Not-in-force EP2745308B1 (fr) 2011-10-04 2012-09-28 Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe

Country Status (3)

Country Link
EP (1) EP2745308B1 (fr)
CN (1) CN103843108B (fr)
WO (1) WO2013050914A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250808B (en) * 1990-11-20 1994-11-30 Koito Mfg Co Ltd Automotive headlamp
JP2753914B2 (ja) 1992-02-05 1998-05-20 株式会社小糸製作所 自動車用前照灯
US5952768A (en) * 1994-10-31 1999-09-14 General Electric Company Transparent heat conserving coating for metal halide arc tubes
DE19756437A1 (de) * 1997-12-18 1999-06-24 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge für Abblendlicht und Fernlicht
DE19843418A1 (de) * 1998-09-22 2000-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe und zugehöriges Beleuchtungssystem
DE10217480A1 (de) * 2002-04-19 2003-11-06 Philips Intellectual Property Gasentladungslampe
JP4637822B2 (ja) * 2003-02-27 2011-02-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 高圧放電ランプ
DE102004005903A1 (de) * 2004-02-05 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe und Herstellungsverfahren für eine Hochdruckentladungslampe
DE102005038350A1 (de) * 2005-08-11 2007-02-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
WO2009066244A2 (fr) * 2007-11-22 2009-05-28 Philips Intellectual Property & Standards Gmbh Lampe à décharge à haute intensité
EP2190005A3 (fr) * 2008-11-25 2012-07-11 NGK Insulators, Ltd. Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité

Also Published As

Publication number Publication date
WO2013050914A1 (fr) 2013-04-11
CN103843108A (zh) 2014-06-04
CN103843108B (zh) 2016-12-28
EP2745308A1 (fr) 2014-06-25

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