MODERN HEADLAMPS (TWO-FILAMENT HALOGEN LAMPS H 4): STAGES THE DEVELOPMENT OF VEHICLE LIGHTING

MODERNE SCHEINWERFER (ZWEIFADEN-HALAGEN-LAMPEN H4). ENTWICK LUNGSSTUFEN DER KFZ-BELEUCHTUNG

The development of the car headlamp has been from the symmetrical dipped headlamp with a low reach in 1957 to the assymmetrical dipped headlamp which lit up the right-hand side of the road to a far greater extent. In 1966 halogen headlamps were permitted in Germany. They were used in full-beam headlights and foglamps. Further development led to the use of this system for dipped headlights. Advantages over the conventional system are described. Conversion to H-4 headlamps took place in the Federal Republic of Germany on 16.9.72. /TRRL/

• Corporate Authors:

  Hannes Schmitt-Horr Verlag

  Juliusstrasse 2
  D62 Wiesbaden,   Germany 
• Authors:
  • Neuwerk, K H
• Publication Date: 1973-9

Media Info

• Features: Figures; Photos;
• Serial:
  • Polizei Technik Verkehr
  • Issue Number: 1
  • Publisher: Hannes Schmitt-Horr Verlag

Subject/Index Terms

• TRT Terms: Development; Fog; Fog lamps; Halogens; Headlamps; Low beamed headlamps; Symmetry; Visibility; Visibility distance
• Geographic Terms: Germany
• ITRD Terms: 1340: Dipped headlight; 1332: Foglamp; 8125: Germany; 7119: Halogen; 1342: Headlamp; 6793: Visibility distance
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00096826
• Record Type: Publication
• Source Agency: Federal Institute of Road Research, Germany
• Files: ITRD, TRIS
• Created Date: Sep 10 1975 12:00AM