IT1203301B - Lampadina elettrica con rivestimento di schermatura della luce particolarmente per proiettori di autoveicoli - Google Patents

Lampadina elettrica con rivestimento di schermatura della luce particolarmente per proiettori di autoveicoli

Info

Publication number
IT1203301B
IT1203301B IT68713/79A IT6871379A IT1203301B IT 1203301 B IT1203301 B IT 1203301B IT 68713/79 A IT68713/79 A IT 68713/79A IT 6871379 A IT6871379 A IT 6871379A IT 1203301 B IT1203301 B IT 1203301B
Authority
IT
Italy
Prior art keywords
light shield
electric bulb
vehicle headlights
shield covering
covering particularly
Prior art date
Application number
IT68713/79A
Other languages
English (en)
Other versions
IT7968713A0 (it
Inventor
Gerhard Schmidt
Original Assignee
Patent Treuhand Ges 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 Ges Fuer Elektrische Gluehlampen Mbh filed Critical Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Publication of IT7968713A0 publication Critical patent/IT7968713A0/it
Application granted granted Critical
Publication of IT1203301B publication Critical patent/IT1203301B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
IT68713/79A 1978-08-25 1979-08-24 Lampadina elettrica con rivestimento di schermatura della luce particolarmente per proiettori di autoveicoli IT1203301B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782837280 DE2837280A1 (de) 1978-08-25 1978-08-25 Elektrische lampe mit lichtabdeckendem ueberzug

Publications (2)

Publication Number Publication Date
IT7968713A0 IT7968713A0 (it) 1979-08-24
IT1203301B true IT1203301B (it) 1989-02-15

Family

ID=6047952

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68713/79A IT1203301B (it) 1978-08-25 1979-08-24 Lampadina elettrica con rivestimento di schermatura della luce particolarmente per proiettori di autoveicoli

Country Status (5)

Country Link
US (1) US4305016A (it)
DE (1) DE2837280A1 (it)
FR (1) FR2434481A1 (it)
GB (1) GB2029638B (it)
IT (1) IT1203301B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636072A (en) * 1983-09-06 1987-01-13 National Service Industries, Inc. Method and apparatus for improved photometric testing of high intensity discharge lamps and luminaires
US4642514A (en) * 1984-09-28 1987-02-10 Gte Products Corporation Automobile headlight with combined heat and light shield
DE8601283U1 (de) * 1986-01-20 1986-08-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kraftfahrzeugentladungslampe
DE3616673A1 (de) * 1986-05-16 1987-11-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogengluehlampe
US4794500A (en) * 1987-05-18 1988-12-27 Ford Motor Company Composite headlamp bulb retaining mechanism
DE3827451C1 (it) * 1988-08-12 1989-10-12 Philips Patentverwaltung Gmbh, 2000 Hamburg, De
DE19544012A1 (de) * 1995-11-27 1997-05-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit Abblendkappe und Verfahren zur Herstellung einer derartigen Lampe sowie Abblendkappe für eine elektrische Glühlampe
ATE272896T1 (de) * 1998-03-26 2004-08-15 Koninkl Philips Electronics Nv Elektrische lampe
DE19834236A1 (de) * 1998-07-29 2000-02-03 Basf Ag Carbonyleisensilizid-Pulver
JP3415533B2 (ja) * 2000-01-12 2003-06-09 エヌイーシーマイクロ波管株式会社 高圧放電灯
DE10306178A1 (de) * 2003-02-13 2004-08-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe für Fahrzeugscheinwerfer
US7195667B2 (en) * 2004-06-07 2007-03-27 General Electric Company Composition for opaque coating, lamp with coating, and method of manufacture
US20100044458A1 (en) * 2005-09-22 2010-02-25 Erez Zabari Fragrance Dispensing Device
JP4547331B2 (ja) * 2005-12-28 2010-09-22 パナソニック株式会社 照明装置及び金属蒸気放電ランプ
EP1921664A1 (en) * 2006-11-09 2008-05-14 Koninklijke Philips Electronics N.V. Electric lamp with light-absorbing coating, precursor suspension for such a coating and method of making such a lamp
DE102009047746A1 (de) 2009-12-09 2011-06-16 Osram Gesellschaft mit beschränkter Haftung Lampe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1589291A1 (de) * 1967-05-31 1970-03-26 Patra Patent Treuhand Elektrische Lampe mit einem thermisch hoch belastbaren Gefaessueberzug und Verfahren zur Herstellung des UEberzuges
US3784861A (en) * 1971-02-25 1974-01-08 Philips Corp Lamp with opaque screen
DE2136012A1 (de) * 1971-07-19 1973-02-01 Patra Patent Treuhand Elektrische lampe mit lichtabdeckendem ueberzug

Also Published As

Publication number Publication date
GB2029638B (en) 1982-06-23
US4305016A (en) 1981-12-08
FR2434481A1 (fr) 1980-03-21
DE2837280A1 (de) 1980-03-06
FR2434481B1 (it) 1984-04-06
IT7968713A0 (it) 1979-08-24
GB2029638A (en) 1980-03-19

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