GB1205683A - Improvements relating to headlamps for motor vehicles - Google Patents
Improvements relating to headlamps for motor vehiclesInfo
- Publication number
- GB1205683A GB1205683A GB4591068A GB4591068A GB1205683A GB 1205683 A GB1205683 A GB 1205683A GB 4591068 A GB4591068 A GB 4591068A GB 4591068 A GB4591068 A GB 4591068A GB 1205683 A GB1205683 A GB 1205683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- reflector
- screen
- focus
- dip
- 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
-
- 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
Abstract
1,205,683. Vehicle headlamp. ROBERT BOSCH G.m.b.H. 27 Sept., 1968 [30 Sept., 1967], No. 45910/68. Heading F4R. [Also in Division H1] In a vehicle headlamp having a reflector, filaments for the main and the dipped beam and a screen associated with the dip filament, the screen has cross-sections in planes perpendicular to the optical axis of the reflector with at least approximately parabolic shaped edges and in planes perpendicular to the first planes at least approximately elliptical shaped edges. A main beam filament 3 is provided in the lamp at the focus 4 of the reflector 1. Alternatively the filament may lie along the optical axis or be U- shaped about the focus. A screen 6 is provided adjacent the dip filament 5 to reflect light rays from the filament back towards the reflector 1. The dip filament 5 lies along the optical axis of reflector 1 and has the last turn nearest the apex of reflector 1 lying at a focus of the ellipse. The filament 5 also lies along the focal line of the paraboloid screen (Fig. 4, not shown). In a modification the parabola-like section may be circular in the vicinity of the parabola apex. The screen may be placed so that the focal line of the paraboloid is staggered upwards or downwards with respect to the dip filament.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0094752 | 1967-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1205683A true GB1205683A (en) | 1970-09-16 |
Family
ID=6987773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4591068A Expired GB1205683A (en) | 1967-09-30 | 1968-09-27 | Improvements relating to headlamps for motor vehicles |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE721658A (en) |
| DE (1) | DE1597920A1 (en) |
| FR (1) | FR1582481A (en) |
| GB (1) | GB1205683A (en) |
| NL (1) | NL6813885A (en) |
| SE (1) | SE356165B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2498297B1 (en) * | 1981-01-16 | 1985-11-29 | Cibie Projecteurs | IMPROVEMENTS ON CROSSING PROJECTORS |
| DE3226580A1 (en) * | 1981-12-08 | 1983-06-16 | Robert Bosch Gmbh, 7000 Stuttgart | HEADLIGHTS FOR MOTOR VEHICLES |
| DE10145427A1 (en) * | 2001-09-14 | 2003-04-03 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Light bulb for automotive headlights |
-
1967
- 1967-09-30 DE DE19671597920 patent/DE1597920A1/en active Pending
-
1968
- 1968-05-29 SE SE719768A patent/SE356165B/xx unknown
- 1968-09-27 GB GB4591068A patent/GB1205683A/en not_active Expired
- 1968-09-27 NL NL6813885A patent/NL6813885A/xx unknown
- 1968-09-30 FR FR1582481D patent/FR1582481A/fr not_active Expired
- 1968-09-30 BE BE721658D patent/BE721658A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1597920A1 (en) | 1970-08-27 |
| SE356165B (en) | 1973-05-14 |
| NL6813885A (en) | 1969-04-01 |
| BE721658A (en) | 1969-03-03 |
| FR1582481A (en) | 1969-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0208895B1 (en) | Dipped beam head light or fog light for motor vehicles | |
| ES291785U (en) | Dimmed vehicle headlight | |
| US4225903A (en) | Motor vehicle headlight for low and high beams | |
| US5215368A (en) | Headlight of a motor vehicle for both high-beam and low-beam operation | |
| US4029985A (en) | Rectangular headlamp filament shield | |
| GB1207108A (en) | Improvements in motor vehicle headlamps | |
| US3184591A (en) | Projectors, more particularly motor vehicle headlights | |
| GB1252145A (en) | ||
| GB1205683A (en) | Improvements relating to headlamps for motor vehicles | |
| US3317772A (en) | Headlight arrangement for automotive vehicles including a reflector and a light shield means | |
| GB1196109A (en) | Automobile Headlight | |
| GB1219125A (en) | Improvements in or relating to motor car halogen headlights | |
| US4520433A (en) | Motor vehicle headlamp | |
| GB961111A (en) | Motor road vehicle signal lamp system | |
| GB1277219A (en) | Improvements in vehicle headlamps | |
| US1661077A (en) | Vehicle headlight | |
| SU221169A1 (en) | ||
| US3020435A (en) | Filament shield | |
| US3056020A (en) | Vehicle headlight | |
| GB1235209A (en) | Vehicle headlight | |
| EP0096785A1 (en) | Truncated motor vehicle headlamp | |
| US3200282A (en) | Incandescent headlight lamp having critically positioned filaments | |
| JPS6254201B2 (en) | ||
| SE340055B (en) | ||
| JPS6414801A (en) | Head lamp for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |