FR830173A - Projecteur - Google Patents

Projecteur

Info

Publication number
FR830173A
FR830173A FR830173DA FR830173A FR 830173 A FR830173 A FR 830173A FR 830173D A FR830173D A FR 830173DA FR 830173 A FR830173 A FR 830173A
Authority
FR
France
Prior art keywords
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
Other languages
English (en)
Inventor
Ettore Salani
Vitaliano Passardi
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 FR830173A publication Critical patent/FR830173A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR830173D 1937-01-09 1937-11-30 Projecteur Expired FR830173A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT830173X 1937-01-09

Publications (1)

Publication Number Publication Date
FR830173A true FR830173A (fr) 1938-07-22

Family

ID=11319683

Family Applications (1)

Application Number Title Priority Date Filing Date
FR830173D Expired FR830173A (fr) 1937-01-09 1937-11-30 Projecteur

Country Status (1)

Country Link
FR (1) FR830173A (fr)

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