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FR913579A - Improvements to lamps used in centered optical systems - Google Patents

Improvements to lamps used in centered optical systems

Info

Publication number
FR913579A
FR913579A FR913579DA FR913579A FR 913579 A FR913579 A FR 913579A FR 913579D A FR913579D A FR 913579DA FR 913579 A FR913579 A FR 913579A
Authority
FR
France
Prior art keywords
optical systems
lamps used
centered optical
centered
lamps
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Charles Magne
Antoine Marsat
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.)
AUTO LAMPE SOC
Original Assignee
AUTO LAMPE SOC
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 AUTO LAMPE SOC filed Critical AUTO LAMPE SOC
Application granted granted Critical
Publication of FR913579A publication Critical patent/FR913579A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR913579D 1945-08-24 1945-08-24 Improvements to lamps used in centered optical systems Expired FR913579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR913579T 1945-08-24

Publications (1)

Publication Number Publication Date
FR913579A true FR913579A (en) 1946-09-13

Family

ID=9421822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR913579D Expired FR913579A (en) 1945-08-24 1945-08-24 Improvements to lamps used in centered optical systems

Country Status (1)

Country Link
FR (1) FR913579A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273065B (en) * 1963-04-03 1968-07-18 Patra Patent Treuhand Electric lamp
WO1998050942A1 (en) * 1997-05-06 1998-11-12 Koninklijke Philips Electronics N.V. Electric incandescent lamp
WO2000025346A1 (en) * 1998-10-22 2000-05-04 Koninklijke Philips Electronics N.V. Electric incandescent lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273065B (en) * 1963-04-03 1968-07-18 Patra Patent Treuhand Electric lamp
WO1998050942A1 (en) * 1997-05-06 1998-11-12 Koninklijke Philips Electronics N.V. Electric incandescent lamp
WO2000025346A1 (en) * 1998-10-22 2000-05-04 Koninklijke Philips Electronics N.V. Electric incandescent lamp
US6204598B1 (en) 1998-10-22 2001-03-20 U.S. Philips Corporation Electric incandescent lamp with sintered glass plate

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