FR667370A - Variable divergence projector - Google Patents

Variable divergence projector

Info

Publication number
FR667370A
FR667370A FR667370DA FR667370A FR 667370 A FR667370 A FR 667370A FR 667370D A FR667370D A FR 667370DA FR 667370 A FR667370 A FR 667370A
Authority
FR
France
Prior art keywords
projector
variable divergence
divergence
variable
divergence 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
French (fr)
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.)
Anciens Etablissements Sautter Harle
Original Assignee
Anciens Etablissements Sautter Harle
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 Anciens Etablissements Sautter Harle filed Critical Anciens Etablissements Sautter Harle
Application granted granted Critical
Publication of FR667370A publication Critical patent/FR667370A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR667370D 1928-04-17 1928-04-17 Variable divergence projector Expired FR667370A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR667370T 1928-04-17

Publications (1)

Publication Number Publication Date
FR667370A true FR667370A (en) 1929-10-16

Family

ID=9014369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR667370D Expired FR667370A (en) 1928-04-17 1928-04-17 Variable divergence projector

Country Status (1)

Country Link
FR (1) FR667370A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353016A1 (en) * 1976-05-24 1977-12-23 Philips Nv LANDING APPROACH BEACON

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353016A1 (en) * 1976-05-24 1977-12-23 Philips Nv LANDING APPROACH BEACON

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