FR797919A - Ellipsoidal projector - Google Patents
Ellipsoidal projectorInfo
- Publication number
- FR797919A FR797919A FR797919DA FR797919A FR 797919 A FR797919 A FR 797919A FR 797919D A FR797919D A FR 797919DA FR 797919 A FR797919 A FR 797919A
- Authority
- FR
- France
- Prior art keywords
- ellipsoidal
- projector
- ellipsoidal projector
- 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
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE797919X | 1934-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR797919A true FR797919A (en) | 1936-05-06 |
Family
ID=6711287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR797919D Expired FR797919A (en) | 1934-12-17 | 1935-11-13 | Ellipsoidal projector |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR797919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015071529A1 (en) * | 2013-11-12 | 2015-05-21 | Ledil Oy | A low-beam headlight element for a vehicle |
-
1935
- 1935-11-13 FR FR797919D patent/FR797919A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015071529A1 (en) * | 2013-11-12 | 2015-05-21 | Ledil Oy | A low-beam headlight element for a vehicle |
| US9822942B2 (en) | 2013-11-12 | 2017-11-21 | Ledil Oy | Low-beam headlight element for a vehicle |
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