Low/high beam headlight for vehicles

US5769525A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hans Daumueller · Bodelshausen, DE
• Karl-Otto Dobler · Reutlingen, DE
• Rainer Neumann · Krefeld, DE
• Frieder Liedtke · Seligenstadt, DE
• Lothar Streit · Tegernsee, DE
• Albert Vent · Eschweiler, DE
• Doris Boebel · Stuttgart, DE

Key dates

• Filing date: Sep 27, 1995
• Grant date: Jun 23, 1998
• Expiry date: Sep 27, 2015

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21S41/17
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The headlight has a reflector (10) and a light source (12) which is arranged in a lamp carrier (22), which can be pivoted in relation to the reflector (10) about a horizontal axis (30) between a position for low beam and a position for high beam by means of an actuator (42). Starting from the position for low beam, the light source (12) is moved as a result of the pivoting movement about the axis (30), together with the lamp carrier (22), both in the direction of the optical axis (11) of the reflector (10) towards its vertex and also vertically downward in relation to the optical axis (11). Starting from the low beam reflected by the reflector (10) in the case of the arrangement of the light source (12) in its low beam position, the result achieved is both a concentration of the light beam reflected by the reflector (10) and an elevation of the light beam, so that an effective high beam is generated by means of which the remote region in front of the vehicle is illuminated with a high illumination intensity.