An emitter (32) which emits visible light when exposed to infrared light is located at a position reached by infrared radiation from the light source (31) of an infrared projector (3), so that a user can visually check whether the projector is turned on.

The headlamp unit (1) has a light source (2) for providing a visible light beam and an IR light source (3), with a bimetallic element (4) positioned in the light path between the IR light source and the headlamp glass (6), for blocking the light path unles...

A metal vapor discharge lamp whose near-infrared radiation is stronger than a conventional high-pressure discharge lamp, a projector utilizing this discharge lamp, and a metal vapor discharge lamp lighting device are disclosed. The metal vapor discharge la...

A night vision system 10 for a vehicle includes a pulsed light source 14 for illuminating a region proximate the vehicle and a secondary trigger light source 21 operating at a predetermined pulse timing and second wavelength. A light sensor 19 detects ligh...

An anisotropic diffuser (44) is arranged in front of a shield (22) to distribute the light rays (Rir) emitted by a secondary light source (42) on the input surface (19) of a principal lens (18), with a view to produce a secondary beam (Fir). The secondary ...

The arrangement has at least two pulsed light sources and at least one synchronized light valve connected to the light sources. The light sources are in the form of arrays (2,3) of light emitting diodes (4). The light emitting diodes and the light valve (7...

The method involves radiating laser light with a wavelength outside the visible spectrum in a defined angular range observed by a camera whose images are displayed top the driver. The laser light is only radiated continuously if the vehicle headlamps are i...

The method involves supplying current to multiple loads (V1,V2) in a clocked manner by switching the loads on and off during operation via dedicated electrically operated switches (S1,S2) . At least two switches are switched on with a time offset of a swit...