FR640587A - Perfectionnement aux projecteurs lumineux - Google Patents
Perfectionnement aux projecteurs lumineuxInfo
- Publication number
- FR640587A FR640587A FR640587DA FR640587A FR 640587 A FR640587 A FR 640587A FR 640587D A FR640587D A FR 640587DA FR 640587 A FR640587 A FR 640587A
- Authority
- FR
- France
- Prior art keywords
- advanced lighting
- lighting projectors
- projectors
- advanced
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/003—Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/06—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR640587T | 1926-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR640587A true FR640587A (fr) | 1928-07-17 |
Family
ID=8997574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR640587D Expired FR640587A (fr) | 1926-12-30 | 1926-12-30 | Perfectionnement aux projecteurs lumineux |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR640587A (fr) |
-
1926
- 1926-12-30 FR FR640587D patent/FR640587A/fr not_active Expired
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