US 11,791,895 B2
Optical transmission/reception unit and apparatus for signal transfer
Tobias Schneider, Dresden (DE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed on Nov. 28, 2022, as Appl. No. 18/59,094.
Application 18/059,094 is a continuation of application No. 17/412,375, filed on Aug. 26, 2021, granted, now 11,515,942.
Application 17/412,375 is a continuation of application No. PCT/EP2020/054905, filed on Feb. 25, 2020.
Claims priority of application No. 102019202766.0 (DE), filed on Feb. 28, 2019.
Prior Publication US 2023/0268995 A1, Aug. 24, 2023
Int. Cl. H04B 10/112 (2013.01); H04B 10/25 (2013.01); H04B 10/43 (2013.01)
CPC H04B 10/1125 (2013.01) [H04B 10/1121 (2013.01); H04B 10/2589 (2020.05); H04B 10/43 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical transmission/reception unit, comprising:
a carrier rotatable around an axis of rotation,
an optical receiver arranged at the carrier on the axis of rotation so as to receive an optical reception signal from a first direction,
an optical transmitter arranged at the carrier adjacent to the optical receiver so as to emit an optical transmission signal in a second direction, and
a transmission/reception optic arranged at the carrier on the axis of rotation above the optical receiver and extending across the optical receiver and the optical transmitter, the transmission/reception optic comprising a reception optic and a transmission optic, the transmission optic being integrated into the reception optic,
wherein the reception optic is configured to focus the optical reception signal striking the transmission/reception optic towards the optical receiver on the axis of rotation,
wherein the transmission optic is configured to guide the optical transmission signal emitted by the optical transmitter onto the axis of rotation so that a transmission beam from the transmission/reception optic propagates along the axis of rotation,
wherein the transmission optic is formed by a portion of a surface of the reception optics facing away from the optical receiver,
wherein the portion is formed to deflect the optical transmission signal received from a transmission face in a direction parallel to the axis of rotation,
wherein the portion is formed by a recess in the surface of the reception optic facing away from the optical receiver, and
wherein a function of the transmission face can be realized by a suitable shaping of a surface of the reception optic facing the optical receiver.