FR518529A - Perfectionnements aux appareils projecteurs de lumière - Google Patents

Perfectionnements aux appareils projecteurs de lumière

Info

Publication number
FR518529A
FR518529A FR518529A FR518529DA FR518529A FR 518529 A FR518529 A FR 518529A FR 518529 A FR518529 A FR 518529A FR 518529D A FR518529D A FR 518529DA FR 518529 A FR518529 A FR 518529A
Authority
FR
France
Prior art keywords
light projector
projector devices
devices
light
projector
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
FR518529A
Other languages
English (en)
Inventor
John Carl Ryan
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 FR518529A publication Critical patent/FR518529A/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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR518529A 1920-07-01 1920-07-01 Perfectionnements aux appareils projecteurs de lumière Expired FR518529A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR518529T 1920-07-01

Publications (1)

Publication Number Publication Date
FR518529A true FR518529A (fr) 1921-05-27

Family

ID=8916199

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518529A Expired FR518529A (fr) 1920-07-01 1920-07-01 Perfectionnements aux appareils projecteurs de lumière

Country Status (1)

Country Link
FR (1) FR518529A (fr)

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