FR522401A - Perfectionnements apportés aux phares - Google Patents

Perfectionnements apportés aux phares

Info

Publication number
FR522401A
FR522401A FR522401A FR522401DA FR522401A FR 522401 A FR522401 A FR 522401A FR 522401 A FR522401 A FR 522401A FR 522401D A FR522401D A FR 522401DA FR 522401 A FR522401 A FR 522401A
Authority
FR
France
Prior art keywords
lighthouses
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
FR522401A
Other languages
English (en)
Inventor
Phares Ducellier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR522401A publication Critical patent/FR522401A/fr
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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR522401A 1920-01-12 1920-01-12 Perfectionnements apportés aux phares Expired FR522401A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR522401T 1920-01-12

Publications (1)

Publication Number Publication Date
FR522401A true FR522401A (fr) 1921-07-30

Family

ID=8917879

Family Applications (1)

Application Number Title Priority Date Filing Date
FR522401A Expired FR522401A (fr) 1920-01-12 1920-01-12 Perfectionnements apportés aux phares

Country Status (1)

Country Link
FR (1) FR522401A (fr)

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