Patent ID: 7058307
Filing Date: 2006-06-06
Classification: G02B,H04B,Y10T

Abstract:
1. A free-space optical communication apparatus for selectively performing wireless optical communication with a plurality of other free-space optical communication apparatuses by changing the angle of a light beam reflecting mirror, said free-space optical communication apparatus comprising: storage means which stores angle-setting information for the mirror for communicating with each of the plurality of other apparatuses; mirror driving means which drives the mirror to an angle corresponding to the stored angle-setting information; optical detecting means which, on repeated occasions for communicating with a specified communication apparatus among the plurality of other apparatuses, detects the incident state of a light beam sent from the specified apparatus; and control means which, for each repeated occasion and based on the detected incident state of the light beam, determines angle-correcting information for correcting the stored angle-setting information for the specified apparatus, wherein on the next occasion for communicating with the specified apparatus, after each repeated occasion, said control means uses said mirror driving means to drive the mirror to an angle corresponding to the angle-setting information corrected by the angle-correcting information.