FR850449A - Système d'éclairage invisible à travers des vitrages - Google Patents

Système d'éclairage invisible à travers des vitrages

Info

Publication number
FR850449A
FR850449A FR850449DA FR850449A FR 850449 A FR850449 A FR 850449A FR 850449D A FR850449D A FR 850449DA FR 850449 A FR850449 A FR 850449A
Authority
FR
France
Prior art keywords
glazing
lighting system
invisible lighting
invisible
lighting
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)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR850449A publication Critical patent/FR850449A/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR850449D 1939-02-17 1939-02-17 Système d'éclairage invisible à travers des vitrages Expired FR850449A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR850449T 1939-02-17

Publications (1)

Publication Number Publication Date
FR850449A true FR850449A (fr) 1939-12-16

Family

ID=9317590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850449D Expired FR850449A (fr) 1939-02-17 1939-02-17 Système d'éclairage invisible à travers des vitrages

Country Status (1)

Country Link
FR (1) FR850449A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400884B (de) * 1988-02-10 1996-04-25 Bartenbach Christian Leuchte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400884B (de) * 1988-02-10 1996-04-25 Bartenbach Christian Leuchte

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