Patent ID: 7723673
Filing Date: 2010-05-25
Classification: G01J

Abstract:
1. An ambient light sensor system for sensing ambient light and light in an area in front of a motor vehicle, the ambient light sensor system comprising: a light guide element arranged behind a transparent area of the motor vehicle; at least two sensors arranged on the light guide element; the light guide element comprising a light conducting body and an impermeable body of a material that is impermeable to a spectral region of the light detected by the at least two sensors, and a surface area delimiting the light guide element and being attached to the transparent area, the surface area is continuous and comprises a first surface region of the light conducting body, a second surface region of the light conducting body and an outer surface of the impermeable body, arranged between the first surface region and the second surface region, wherein the light conducting body comprises at least two edges provided in a surface area, wherein a first edge delimits the first surface region through which ambient light is conducted into the light guide element and is guided to the first one of the at least two sensors, and wherein a second edge delimits the second surface region through which the light in a forward area is conducted into the light guide element and guided to a second one of the at least two sensors.