FR850449A - Invisible lighting system through glazing - Google Patents
Invisible lighting system through glazingInfo
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT400884B (en) * | 1988-02-10 | 1996-04-25 | Bartenbach Christian | LAMP |
-
1939
- 1939-02-17 FR FR850449D patent/FR850449A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT400884B (en) * | 1988-02-10 | 1996-04-25 | Bartenbach Christian | LAMP |
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