Vehicle headlight and process for operation thereof
AssigneeDaimlerChrysler AG
InventorsMichael Holz, Joerg Moisel, Manfred Rode
Life of this patent
Estimating the term…
Abstract
The invention concerns a process for operation of a vehicle headlight as well as a vehicle headlight (1) with a housing and a light source (3) provided within the housing. In accordance with the invention the housing of the vehicle headlight (1) is designed to be pressure-tight and the headlight (1) is associated with a controller (7), which controls the headlight (1) depending upon the pressure within the housing. The controller (7) brings about that the headlight, depending upon the pressure within the housing, is switched off, is adapted in its light intensity and/or is changed in its emission characteristic. Thereby a headlight is produced characterized by being safe for the eyes.
Claims9
Automotive vehicle headlight with housing and with a light source provided within the housing, thereby characterized, that the housing is pressure-tight and that the headlight is associated with a controller, which controls the headlight based on the pressure within the housing.
Headlight according to one of the preceding claims, thereby characterized, that the headlight is associated with an output or display unit for the vehicle occupants, which in accordance with the pressure within the housing can be warned or as the case may be informed regarding the headlight condition with the aid of the output unit.
Headlight according to one of the preceding claims, thereby characterized, that the light source of the headlight is a single semi-conductor light source or an array of high intensity semi-conductor light sources, in particular laser light sources.
Headlight according to one of the preceding claims, thereby characterized, that the headlight is provided with a pump, which is adapted for producing within the housing a predetermined pressure or vacuum.
Process for operation of a headlight with a light source provided within the housing, thereby characterized, that the control of the headlight occurs depending upon the pressure within the housing, wherein in particular depending upon the pressure within the housing it is switched off, is adapted in its light intensity and/or is modified in its emission characteristic.
Dependencies are inferred from the claim text.