FR523901A - Apparatus for projecting luminous radiations of varying intensity - Google Patents

Apparatus for projecting luminous radiations of varying intensity

Info

Publication number
FR523901A
FR523901A FR523901A FR523901DA FR523901A FR 523901 A FR523901 A FR 523901A FR 523901 A FR523901 A FR 523901A FR 523901D A FR523901D A FR 523901DA FR 523901 A FR523901 A FR 523901A
Authority
FR
France
Prior art keywords
varying intensity
luminous radiations
projecting luminous
projecting
radiations
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
FR523901A
Other languages
French (fr)
Inventor
Francois-Philippe-Ch Benoit
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.)
FRANCOIS PHILIPPE CHARLES BENO
Original Assignee
FRANCOIS PHILIPPE CHARLES BENO
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 FRANCOIS PHILIPPE CHARLES BENO filed Critical FRANCOIS PHILIPPE CHARLES BENO
Application granted granted Critical
Publication of FR523901A publication Critical patent/FR523901A/en
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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR523901A 1920-02-13 1920-02-13 Apparatus for projecting luminous radiations of varying intensity Expired FR523901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR523901T 1920-02-13

Publications (1)

Publication Number Publication Date
FR523901A true FR523901A (en) 1921-08-27

Family

ID=8918925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523901A Expired FR523901A (en) 1920-02-13 1920-02-13 Apparatus for projecting luminous radiations of varying intensity

Country Status (1)

Country Link
FR (1) FR523901A (en)

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