Reception device and communication device

Abstract

A reception device that includes a first optical collector that collects an optical signal propagating in a space, a second optical collector that collects the optical signal collected by the first optical collector by compressing the optical signal in a second direction orthogonal to the first direction, a third optical collector that collects the optical signal collected by the second optical collector in a direction including at least the first direction, and a light-receiving element array including a plurality of light-receiving elements arranged along the first direction, the light-receiving element array receiving the optical signal collected by the third optical collector by at least one of the plurality of light-receiving elements.

Dependencies are inferred from the claim text.