OPTICAL ELEMENT FOR A TRANSMISSION APPARATUS OF AN OPTICAL SENSING DEVICE, TRANSMISSION APPARATUS, OPTICAL SENSING DEVICE, MOTOR VEHICLE AND METHOD

摘要

The invention relates to an optical element (13) for a transmission apparatus (8) of an optical sensing device (3), wherein the optical element (13) comprises a first side (13a) having a reflective first free-form surface (F1) and a second side (13b), opposite the first side (13a), having a refractive second free-form surface (F2). The optical element (13) is further designed to transmit a beam (10), which is incident on the optical element (13) on the second side (13b), at least in large part through the second free-form surface (F2) to the first free-form surface (F1), to reflect the beam (10) transmitted through the second free-form surface (F2) to the first free-form surface (F1) at the first free-form surface (F1), and to radiate the beam (10) reflected by the first free-form surface (F1) across the second free-form surface (F2). The first free-form surface (F1) is configured to enlarge a divergence of the beam (10) that is incident on the first free-form surface (F1), and the second free-form surface (F2) is configured to reduce the divergence enlarged during reflection when the beam (10) reflected by the first free-form surface (F1) is radiated.