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FR495844A - Portable device for light signals - Google Patents

Portable device for light signals

Info

Publication number
FR495844A
FR495844A FR495844DA FR495844A FR 495844 A FR495844 A FR 495844A FR 495844D A FR495844D A FR 495844DA FR 495844 A FR495844 A FR 495844A
Authority
FR
France
Prior art keywords
portable device
light signals
signals
light
portable
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.)
IT CINEMATOGRAFICA UNITAS SOC
Original Assignee
IT CINEMATOGRAFICA UNITAS SOC
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 IT CINEMATOGRAFICA UNITAS SOC filed Critical IT CINEMATOGRAFICA UNITAS SOC
Application granted granted Critical
Publication of FR495844A publication Critical patent/FR495844A/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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR495844D 1917-04-26 1917-11-14 Portable device for light signals Expired FR495844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT495844X 1917-04-26

Publications (1)

Publication Number Publication Date
FR495844A true FR495844A (en) 1919-10-18

Family

ID=1531342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR495844D Expired FR495844A (en) 1917-04-26 1917-11-14 Portable device for light signals

Country Status (1)

Country Link
FR (1) FR495844A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289350A (en) * 1988-10-04 1994-02-22 Sachtler Ag Kommunikationstechnik Pivotable holding mechanism for an optical element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289350A (en) * 1988-10-04 1994-02-22 Sachtler Ag Kommunikationstechnik Pivotable holding mechanism for an optical element

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