US Patent 7167630 Beam shaper and imaging head having beam shapers

Beam shapers, imaging heads formed using such beam shapers and methods are provided that are adapted to shape a light beam for use in imaging. In accordance with one method described herein a light beam is received and the light beam is reflectively scrambled to form generally homogenous light having a non-circular shape. The homogenous light is delivered to a circular core multimode light path that shapes the light beam so that light exiting the circular core multimode light path comprises circular shaped homogenous light.