Headlight for motor vehicle, has trim comprising memory shaped material that allows trim to achieve stable positions, where trim does not mask light source in one of positions when heat emitted by source heats trim until temperature

摘要

The headlight (20) has a light source (22) for emitting light beam, and a trim (4) comprising a memory shaped material. The memory shaped material allows the trim to achieve two stable positions. The trim partially masks the light source below critical temperature in one of the stable positions and does not mask the light source in the other stable position when heat emitted by the light source causes heating of the trim until a temperature greater than the critical temperature is reached during operation.