EP2175475A3 - Low wattage single ended high-pressure discharge lamp with anti-burst envelopes - Google Patents

Low wattage single ended high-pressure discharge lamp with anti-burst envelopes Download PDF

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Publication number
EP2175475A3
EP2175475A3 EP09171352A EP09171352A EP2175475A3 EP 2175475 A3 EP2175475 A3 EP 2175475A3 EP 09171352 A EP09171352 A EP 09171352A EP 09171352 A EP09171352 A EP 09171352A EP 2175475 A3 EP2175475 A3 EP 2175475A3
Authority
EP
European Patent Office
Prior art keywords
inner piston
outer bulb
hand
discharge lamp
pressure discharge
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.)
Withdrawn
Application number
EP09171352A
Other languages
German (de)
French (fr)
Other versions
EP2175475A2 (en
Inventor
Joachim Arndt
Uwe Fidler
Ralph Hauschild
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
Osram GmbH
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 GmbH filed Critical Osram GmbH
Publication of EP2175475A2 publication Critical patent/EP2175475A2/en
Publication of EP2175475A3 publication Critical patent/EP2175475A3/en
Withdrawn legal-status Critical Current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
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/50—Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
    • 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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

Einseitig gesockelte elektrische Hochdrucklampe (10), mit einem Entladungsgefäß (9), einem umgebenden Innenkolben (7) und einem beides umgebenden Außenkolben (3), mit einer Wattage von höchstens 100 W, wobei ein Sockel (36) mit elektrischen Anschlüssen einerseits den Außenkolben und andererseits den Innenkolben trägt, wobei eine effektive axiale Länge HE des Innenkolbens als dessen Länge ohne Enden definiert ist, wobei folgende geometrische Relationen über die Länge HE eingehalten werden:
- das Volumen VH des zwischen Innenkolben und Außenkolben sich erstreckenden Hohlzylinders ist gegeben durch 8 cm3 ≤ VH ≤ 15 cm3;
- die Impaktgüte IG, definiert als Produkt aus lichter Weite LW zwischen Innenkolben und Außenkolben einerseits und dem Quadrat der Wandstärke WD des Außenkolbens andererseits, jeweils in mm gerechnet, beträgt mindestens 8 mm3, so dass gilt 8 ≤ IG.

Figure imgaf001
Single-ended electric high-pressure lamp (10), with a discharge vessel (9), a surrounding inner piston (7) and an outer bulb (3) surrounding both, with a wattage of at most 100 W, wherein a base (36) with electrical connections on the one hand the outer bulb and on the other hand supports the inner piston, wherein an effective axial length HE of the inner piston is defined as its length without ends, wherein the following geometric relations are maintained over the length HE:
the volume VH of the hollow cylinder extending between the inner piston and outer bulb is given by 8 cm 3 ≦ VH ≦ 15 cm 3 ;
- The impact quality IG, defined as the product of clear width LW between the inner piston and outer bulb on the one hand and the square of the wall thickness WD of the outer bulb on the other hand, each calculated in mm, is at least 8 mm 3 , so that applies 8 ≤ IG.
Figure imgaf001
EP09171352A 2008-10-10 2009-09-25 Low wattage single ended high-pressure discharge lamp with anti-burst envelopes Withdrawn EP2175475A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008013506U DE202008013506U1 (en) 2008-10-10 2008-10-10 Single ended lamp

Publications (2)

Publication Number Publication Date
EP2175475A2 EP2175475A2 (en) 2010-04-14
EP2175475A3 true EP2175475A3 (en) 2010-09-29

Family

ID=40227399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09171352A Withdrawn EP2175475A3 (en) 2008-10-10 2009-09-25 Low wattage single ended high-pressure discharge lamp with anti-burst envelopes

Country Status (5)

Country Link
US (1) US8018157B2 (en)
EP (1) EP2175475A3 (en)
JP (1) JP2010092865A (en)
CN (1) CN101728217A (en)
DE (1) DE202008013506U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051537A1 (en) * 2009-10-30 2011-05-05 Osram Gesellschaft mit beschränkter Haftung Burner-protected lamp
DE102009047339A1 (en) * 2009-12-01 2011-06-09 Osram Gesellschaft mit beschränkter Haftung High pressure discharge lamp
US9219741B2 (en) 2013-05-02 2015-12-22 Airwatch, Llc Time-based configuration policy toggling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129329A1 (en) * 1981-07-24 1983-02-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München SODIUM STEAM HIGH PRESSURE DISCHARGE LAMP
EP1763066A1 (en) * 2004-06-29 2007-03-14 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and lighting apparatus using the same
WO2007139058A1 (en) * 2006-05-31 2007-12-06 Panasonic Corporation Metal vapor discharge lamp and illumination device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336282A1 (en) * 2003-08-07 2005-02-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Single ended lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129329A1 (en) * 1981-07-24 1983-02-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München SODIUM STEAM HIGH PRESSURE DISCHARGE LAMP
EP1763066A1 (en) * 2004-06-29 2007-03-14 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and lighting apparatus using the same
WO2007139058A1 (en) * 2006-05-31 2007-12-06 Panasonic Corporation Metal vapor discharge lamp and illumination device
EP2031636A1 (en) * 2006-05-31 2009-03-04 Panasonic Corporation Metal vapor discharge lamp and illumination device

Also Published As

Publication number Publication date
CN101728217A (en) 2010-06-09
EP2175475A2 (en) 2010-04-14
JP2010092865A (en) 2010-04-22
DE202008013506U1 (en) 2009-01-08
US20100090600A1 (en) 2010-04-15
US8018157B2 (en) 2011-09-13

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