| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to selectively receive arbitrary light rays among light rays from a plurality of light sources in optical communications in a free space.SOLUTION: The light-receiving device comprises at least: a beam splitter; a space division device; and a light receiver. The space division device is composed of an aggregate of mirrors arranged on a plane space and is configured to be capable of arbitrarily changing a direction of a reflected light ray incident on a mirror by changing an angle of the mirror. |
