SE340055B - - Google Patents
Info
- Publication number
- SE340055B SE340055B SE169369A SE169369A SE340055B SE 340055 B SE340055 B SE 340055B SE 169369 A SE169369 A SE 169369A SE 169369 A SE169369 A SE 169369A SE 340055 B SE340055 B SE 340055B
- Authority
- SE
- Sweden
- Prior art keywords
- reflector
- bulb
- mask
- dipped beam
- filament
- Prior art date
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
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
1,192,346. Vehicle headlamps. ROBERT BOSCH G.m.b.H. 7 Feb., 1969 [8 Feb., 1968], No. 6630/69. Heading F4R. A vehicle headlmap comprises a cylindrical quartz halogen double filament bulb 1, wherein a main beam filament 2 lies substantially in the focal plane 7 of a parabolic reflector 4 and a dipped beam filament 3 lies in front of the focal plane of the reflector, and both filaments lie outside the axis of symmetry 5 of the cylindrical bulb and approximately on the optical axis A of the headlamp, there being a dipping cap 6 associated with the bulb to produce an assymetrical dipped beam, and a partial mask adjacent the apex 12 of the parabolic reflector 4. The dipping cap and mask, which are provided to prevent glare, are so placed as to prevent light rays reaching the reflector which after reflection would leave the lamp in an upward direction 22. The mask may comprise an unmetallized or blackened area on the reflector or a non-reflecting piece of sheet metal fixed to the reflector, Fig. 3, not shown. Alternatively an additional auxiliary reflector may be fitted to reflect the dipped beam in the required direction. In additional screen may be provided, Fig. 5, not shown, to prevent part of the main beam from being scattered by the headlamp glass in unwanted directions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681622004 DE1622004C3 (en) | 1968-02-08 | 1968-02-08 | Vehicle headlights with a halogen twin-filament lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE340055B true SE340055B (en) | 1971-11-01 |
Family
ID=5682585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE169369A SE340055B (en) | 1968-02-08 | 1969-02-07 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT297151B (en) |
| BE (1) | BE728141A (en) |
| DE (1) | DE1622004B2 (en) |
| FR (1) | FR1596357A (en) |
| GB (1) | GB1192346A (en) |
| NL (1) | NL6900818A (en) |
| SE (1) | SE340055B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS199055B1 (en) * | 1976-03-23 | 1980-07-31 | Milan Cejnek | Hadlight |
-
1968
- 1968-02-08 DE DE1968B0096544 patent/DE1622004B2/en active Granted
- 1968-12-23 FR FR1596357D patent/FR1596357A/fr not_active Expired
-
1969
- 1969-01-17 NL NL6900818A patent/NL6900818A/xx unknown
- 1969-02-05 AT AT117169A patent/AT297151B/en not_active IP Right Cessation
- 1969-02-07 GB GB663069A patent/GB1192346A/en not_active Expired
- 1969-02-07 BE BE728141D patent/BE728141A/xx unknown
- 1969-02-07 SE SE169369A patent/SE340055B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1622004A1 (en) | 1970-10-22 |
| BE728141A (en) | 1969-07-16 |
| GB1192346A (en) | 1970-05-20 |
| NL6900818A (en) | 1969-08-12 |
| AT297151B (en) | 1972-03-10 |
| FR1596357A (en) | 1970-06-15 |
| DE1622004B2 (en) | 1976-12-23 |
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