FR62520E - Perfectionnements aux appareils d'éclairage - Google Patents
Perfectionnements aux appareils d'éclairageInfo
- Publication number
- FR62520E FR62520E FR62520DA FR62520E FR 62520 E FR62520 E FR 62520E FR 62520D A FR62520D A FR 62520DA FR 62520 E FR62520 E FR 62520E
- Authority
- FR
- France
- Prior art keywords
- lighting fixtures
- fixtures
- lighting
- fixtures improvements
- 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
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR62520T | 1952-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR62520E true FR62520E (fr) | 1955-06-15 |
Family
ID=8695923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR62520D Expired FR62520E (fr) | 1952-01-31 | 1952-01-31 | Perfectionnements aux appareils d'éclairage |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR62520E (fr) |
-
1952
- 1952-01-31 FR FR62520D patent/FR62520E/fr not_active Expired
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