Patent ID: 6312147
Filing Date: 2001-11-06
Classification: F21S

Abstract:
A headlight for a vehicle operating in accordance with a projection principle, comprising a light source; a reflector reflecting in a direction of an optical axis a light emitted by said light source; a lens arranged in a course of light reflected by said reflector; at least one first shade device located between said reflector and said lens and changeable between at least one first condition for a first operational position of the headlight and at least one second condition for a second operational position of the headlight, said at least one first shade device in said first condition screening a part of the light reflected by said reflector and producing a bright dark limit of a light bundle exiting the headlight, and in said second condition screening at most only a smaller part of a light reflected by said reflector than in said first condition; and at least one further shade device changeable between said first condition and said second condition, said at least one further shade device in said first condition being laterally offset in the direction of said optical axis relative to said at least one first shade device, thus screening a part of a light reflected by said reflector past said first shade device in said first condition so as to reduce a maximum illumination intensity value produced by a light bundle exiting the headlight in said first operational position without producing a further sharp bright-dark limit in said bundle, said at least one further shade device in said second condition screening at most only a smaller part of a light reflected by said reflector.