Headlight assembly with angularly displaced reflector regions

US6250786A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Kurt Schuster · Reutlingen, DE
• Gerd Bahnmueller · Holzgerlingen, DE
• Doris Boebel · Stuttgart, DE

Key dates

• Filing date: Jul 21, 1999
• Grant date: Jun 26, 2001
• Expiry date: Jul 21, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21S41/334
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A motor vehicle headlight assembly includes a reflector extending along a focal line and having an open end, a light source including an elongated gas discharge tube extending within the reflector along the focal line for the light issued thereby onto the reflector to be reflected by the latter into the open end, and an at least translucent light-guiding plate spanning the open end of the reflector and operative for directing light passing through it onto an illumination area situated at a predetermined distance in front of the motor vehicle on which the headlight assembly is mounted when in use. The reflector has at least in general the configuration of a flattened cross-sectionally parabolic cylinder and consists at least in part of two opposing regions at least one of which is inclined by a predetermined angle about the focal line with respect to the position it would have assumed in a true cross-sectionally parabolic cylinder.