FR514702A - Perfectionnements aux projecteurs de lumière - Google Patents

Perfectionnements aux projecteurs de lumière

Info

Publication number
FR514702A
FR514702A FR514702A FR514702DA FR514702A FR 514702 A FR514702 A FR 514702A FR 514702 A FR514702 A FR 514702A FR 514702D A FR514702D A FR 514702DA FR 514702 A FR514702 A FR 514702A
Authority
FR
France
Prior art keywords
light projectors
projectors
light
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
FR514702A
Other languages
English (en)
Inventor
Sidney John Marshall
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.)
SIDNEY JOHN MARSHALL
Original Assignee
SIDNEY JOHN MARSHALL
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 SIDNEY JOHN MARSHALL filed Critical SIDNEY JOHN MARSHALL
Application granted granted Critical
Publication of FR514702A publication Critical patent/FR514702A/fr
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
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR514702A 1920-04-29 1920-04-29 Perfectionnements aux projecteurs de lumière Expired FR514702A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR514702T 1920-04-29

Publications (1)

Publication Number Publication Date
FR514702A true FR514702A (fr) 1921-03-17

Family

ID=8914310

Family Applications (1)

Application Number Title Priority Date Filing Date
FR514702A Expired FR514702A (fr) 1920-04-29 1920-04-29 Perfectionnements aux projecteurs de lumière

Country Status (1)

Country Link
FR (1) FR514702A (fr)

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