FR685241A - High efficiency lighting process - Google Patents

High efficiency lighting process

Info

Publication number
FR685241A
FR685241A FR685241DA FR685241A FR 685241 A FR685241 A FR 685241A FR 685241D A FR685241D A FR 685241DA FR 685241 A FR685241 A FR 685241A
Authority
FR
France
Prior art keywords
high efficiency
lighting process
efficiency lighting
lighting
efficiency
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
Louis-Maurice Schwob
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 filed Critical
Application granted granted Critical
Publication of FR685241A publication Critical patent/FR685241A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/003—Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR685241D 1929-11-20 1929-11-20 High efficiency lighting process Expired FR685241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR685241T 1929-11-20

Publications (1)

Publication Number Publication Date
FR685241A true FR685241A (en) 1930-07-08

Family

ID=9024885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685241D Expired FR685241A (en) 1929-11-20 1929-11-20 High efficiency lighting process

Country Status (1)

Country Link
FR (1) FR685241A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155074B (en) * 1960-02-24 1963-10-03 Baulio Etablissement Glare-free headlights, especially for motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155074B (en) * 1960-02-24 1963-10-03 Baulio Etablissement Glare-free headlights, especially for motor vehicles

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