Conventionally, it has been important to rotatably mount a lens on a housing without a backlash. The present invention has been made in view of this circumstance, and aims to provide a vehicle room lighting device having a lamp housing 2 and a lamp lens 3....

At least one of the lamps (2) illuminating the passenger cabin when a switch (3) is operated is combined with an infrared motion detector. The detector comprises two transmitting elements (7, 8) and a receiver (9). A control unit (10) is connected alternat...

The light has a light source, a light outlet and an optical sensor that switches the light source. The sensor has a transmitter (11''') and a receiver (16''') forming a reflection light barrier. The transmitter transmits a transmission signal via a light o...