NL284072A - - Google Patents
Info
- Publication number
- NL284072A NL284072A NL284072DA NL284072A NL 284072 A NL284072 A NL 284072A NL 284072D A NL284072D A NL 284072DA NL 284072 A NL284072 A NL 284072A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
-
- 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
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
- F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
- F21S41/332—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with continuity at the junction between adjacent areas
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM51258A DE1170540B (de) | 1961-10-09 | 1961-10-09 | Zweifadengluehlampe fuer abgeblendetes Fern- und Nahlicht in Kraftfahrzeugscheinwerfern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL284072A true NL284072A (enrdf_load_stackoverflow) |
Family
ID=7307068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL284072D NL284072A (enrdf_load_stackoverflow) | 1961-10-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3200281A (enrdf_load_stackoverflow) |
| DE (1) | DE1170540B (enrdf_load_stackoverflow) |
| GB (1) | GB981207A (enrdf_load_stackoverflow) |
| NL (1) | NL284072A (enrdf_load_stackoverflow) |
| SE (1) | SE301914B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7014336A (enrdf_load_stackoverflow) * | 1970-09-30 | 1972-04-05 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1280626A (en) * | 1916-01-17 | 1918-10-08 | Adelbert Ames Jr | Reflector. |
| FR732284A (fr) * | 1931-05-04 | 1932-09-15 | Lampes Sa | Lampe électrique pour éclairage sans éblouissement, dite |
| US1963672A (en) * | 1931-06-05 | 1934-06-19 | Bertrand A Parkes | Circular drying, stretching, and finishing machine |
| FR743401A (enrdf_load_stackoverflow) * | 1932-07-28 | 1933-03-30 | ||
| US2245793A (en) * | 1937-09-30 | 1941-06-17 | Westinghouse Electric & Mfg Co | Multiple filament lamp |
| US2501140A (en) * | 1947-10-17 | 1950-03-21 | Pique Baudilio Jesus | Electric-light projecting reflector |
-
0
- NL NL284072D patent/NL284072A/xx unknown
-
1961
- 1961-10-09 DE DEM51258A patent/DE1170540B/de active Pending
-
1962
- 1962-10-04 GB GB37585/62A patent/GB981207A/en not_active Expired
- 1962-10-08 US US228928A patent/US3200281A/en not_active Expired - Lifetime
- 1962-10-08 SE SE10790/62A patent/SE301914B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE301914B (enrdf_load_stackoverflow) | 1968-06-24 |
| DE1170540B (de) | 1964-05-21 |
| US3200281A (en) | 1965-08-10 |
| GB981207A (en) | 1965-01-20 |