FR412591A - Catoptric device for headlights - Google Patents
Catoptric device for headlightsInfo
- Publication number
- FR412591A FR412591A FR412591A FR412591DA FR412591A FR 412591 A FR412591 A FR 412591A FR 412591 A FR412591 A FR 412591A FR 412591D A FR412591D A FR 412591DA FR 412591 A FR412591 A FR 412591A
- Authority
- FR
- France
- Prior art keywords
- headlights
- catoptric
- catoptric device
- 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
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR412591T | 1909-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR412591A true FR412591A (en) | 1910-07-16 |
Family
ID=1456441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR412591A Expired FR412591A (en) | 1909-05-05 | 1909-05-05 | Catoptric device for headlights |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR412591A (en) |
-
1909
- 1909-05-05 FR FR412591A patent/FR412591A/en not_active Expired
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