Patent ID: 7181143

Claim:
A free space optics communication apparatus comprising: a light source which emits a light beam for performing wireless communication of information; a minute mirror array unit which consists of a plurality of minute mirrors arranged in a matrix-like form and reflects the light beam emitted from the light source toward another apparatus; and a control unit which controls directions of the individual minute mirrors constituting the minute mirror array unit independently, wherein at least one of a divergent angle of the reflected light beam, a pattern of the light beam, and a reflecting direction of the light beam can be changed by the control unit controlling the directions of the individual minute mirrors; wherein the control unit variably controls the number of a plurality of mirror groups formed of the plurality of minute mirrors in the minute mirror array unit, and the plurality of mirror groups reflect the light beam from the light source toward a plurality of other apparatuses; and wherein the control unit sets a larger number of the minute mirrors constituting the mirror group corresponding to the other apparatus at a longer distance.