FR840453A - écran transparent à usages multiples - Google Patents
écran transparent à usages multiplesInfo
- Publication number
- FR840453A FR840453A FR840453DA FR840453A FR 840453 A FR840453 A FR 840453A FR 840453D A FR840453D A FR 840453DA FR 840453 A FR840453 A FR 840453A
- Authority
- FR
- France
- Prior art keywords
- transparent screen
- multipurpose
- multipurpose transparent
- screen
- transparent
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/125—Coloured light
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR840453T | 1938-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR840453A true FR840453A (fr) | 1939-04-26 |
Family
ID=9302383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR840453D Expired FR840453A (fr) | 1938-07-08 | 1938-07-08 | écran transparent à usages multiples |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR840453A (fr) |
-
1938
- 1938-07-08 FR FR840453D patent/FR840453A/fr not_active Expired
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