US Patent 8354921 Self-illuminating handle for a vehicle emergency egress assembly

A self-illuminating handle assembly for a release mechanism of an emergency egress system for a vehicle. The handle assembly includes a sensor for sensing a predetermined condition and providing a sensor signal in response thereto, and a sensor-activated switch assembly for causing the handle assembly to self-illuminate in response to the sensor signal. The sensor could be a so-called tilt sensor for sensing when the vehicle orientation is tilted beyond a threshold tilt orientation, or an acceleration sensor (accelerometer) for sensing when the vehicle has undergone an acceleration or deceleration beyond a threshold, indicative of a crash or the vehicle having been exposed to an explosion.