FR685940A - Perfectionnements apportés aux projecteurs - Google Patents

Perfectionnements apportés aux projecteurs

Info

Publication number
FR685940A
FR685940A FR685940DA FR685940A FR 685940 A FR685940 A FR 685940A FR 685940D A FR685940D A FR 685940DA FR 685940 A FR685940 A FR 685940A
Authority
FR
France
Prior art keywords
projectors
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
Stephen Grbeel
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 FR685940A publication Critical patent/FR685940A/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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR685940D 1928-12-05 1929-12-03 Perfectionnements apportés aux projecteurs Expired FR685940A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU685940X 1928-12-05

Publications (1)

Publication Number Publication Date
FR685940A true FR685940A (fr) 1930-07-18

Family

ID=19733168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685940D Expired FR685940A (fr) 1928-12-05 1929-12-03 Perfectionnements apportés aux projecteurs

Country Status (1)

Country Link
FR (1) FR685940A (fr)

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