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1. (WO2018157979) OPTICAL ELEMENT FOR A TRANSMISSION APPARATUS OF AN OPTICAL SENSING DEVICE, TRANSMISSION APPARATUS, OPTICAL SENSING DEVICE, MOTOR VEHICLE AND METHOD

Pub. No.:    WO/2018/157979    International Application No.:    PCT/EP2018/050181
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Jan 05 00:59:59 CET 2018
IPC: G02B 17/08
G02B 26/10
G02B 27/01
G01S 17/93
G01S 7/00
G02B 27/00
Applicants: VALEO SCHALTER UND SENSOREN GMBH
Inventors: NGUYEN, Ho-Hoai-Duc
HORVATH, Peter
Title: OPTICAL ELEMENT FOR A TRANSMISSION APPARATUS OF AN OPTICAL SENSING DEVICE, TRANSMISSION APPARATUS, OPTICAL SENSING DEVICE, MOTOR VEHICLE AND METHOD
Abstract:
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.