Illumination device for motor vehicle, has electro-active polymer comprising actuator to vary light beam emitted from bulb, and torsionally rigid mirror to partially reflect light emitted from bulb

摘要

The illumination device (2) has a bulb (6) and a torsionally rigid mirror (14) to partially reflect light emitted from the bulb. An actuator (18) comprising electro-active polymer (22) which is an ionic polymer metal composite (IPMC) comprising sulfonated tetrafluoroethylene polymer, is provided to vary the light beam emitted from bulb.