FR850449A - Invisible lighting system through glazing - Google Patents

Invisible lighting system through glazing

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
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.)
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/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
    • 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
FR850449D 1939-02-17 1939-02-17 Invisible lighting system through glazing Expired FR850449A (en)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=9317590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850449D Expired FR850449A (en) 1939-02-17 1939-02-17 Invisible lighting system through glazing

Country Status (1)

Country Link
FR (1) FR850449A (en)

Cited By (1)

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

Cited By (1)

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

Similar Documents

Publication Publication Date Title
FR866082A (en) Lighting fixture
FR817194A (en) Decorative lighting device
FR917384A (en) Attachment system
FR850449A (en) Invisible lighting system through glazing
FR50496E (en) Invisible lighting system through glazing
FR937957A (en) Radio-printer system
FR856664A (en) Elastic coupling system
FR921846A (en) Lighting fixtures improvements
FR864405A (en) Emergency lighting system
FR825868A (en) Retro-reflector lighting device
FR871633A (en) Ultra-shortwave directed radiation system
FR915486A (en) Lighting control system
FR824845A (en) Lighting fixtures improvements
FR817601A (en) Lighting fixture
FR883385A (en) Stepped lens lighting device
FR864204A (en) Lighting device
FR813624A (en) Lighting device
FR851109A (en) Fire defense system
FR860852A (en) Electromagnetic device used to reduce private or public lighting
FR893913A (en) Lighting device
FR863644A (en) Fusion system
FR865793A (en) Lighting fixture
FR858397A (en) Lighting fixture
FR857543A (en) Lighting fixture
FR50668E (en) Indirect luminaire with special light