Patent ID: 7200335

Claim:
An optical transceiver, comprising: at least one coupling lens which condenses reception signal light from an optical medium and condenses transmission signal light to said optical medium; an optical plate which passes said reception signal light and reflects said transmission signal light; a light receiving element which receives said reception signal light passed through said optical plate; and a light emitting element which transmits said transmission signal light so as to be reflected by said optical plate; wherein the inclination angle of said light emitting element is increased in the + direction which increases the incident angle formed by the beam center line of said transmission signal light from said light emitting element with respect to said optical plate; wherein an emission port of said transmission signal light of said light emitting element is arranged at a position to enable said transmission signal light from said light emitting element to form an image in said optical medium via said optical plate and said coupling lens; and wherein said emission port of said transmission signal light of said light emitting element is arranged in a direction that makes the incident angle formed on said optical plate by the beam center line of said transmission signal light transmitted from said light emitting element larger than the incident angle of the beam center line for maximally condensing said transmission signal light from said light emitting element to said optical medium, so that the amount of the transmission signal light from the light emitting element that passes through the optical plate and is incident directly on the light receiving element inside the optical transceiver is reduced.