A dynamic micro-structured reflector includes a substrate having a
generally planar major surface and a plurality of cavities on the planar
major surface. Each cavity having at least a first and second sidewalls
set at an angle offset from the planar major surface. The first sidewall
being a stationary optical face and the second sidewall being a dynamic
optical face. The dynamic optical face is deflectable between a first
position and a second position. The dynamic optical face in the first
position redirects more light back to a light source than the dynamic
optical face in the second position. Methods of making a dynamic
micro-structured reflector are also disclosed.