公开(公告)号：US20200292705A1

公开(公告)日：2020-09-17

申请号：US16815339

申请日：2020-03-11

Applicant: SICK AG

Inventor： Romain MÜLLER ,  Florian SCHNEIDER ,  Mattias JOHANNESSON

IPC: G01S17/48 ,  G01B11/25 ,  G01J4/00 ,  G06T7/521

Abstract: The present invention relates to a light line triangulation apparatus with a measurement space for receiving a measurement object, a light projector, adapted to project a light line into the measurement space and/or onto the measurement object, an imager for detecting the light line in the measurement space, wherein the imager comprises imaging pixels arranged in a plurality of columns and rows. The apparatus of the invention is characterized in that the imager comprises multiple identical sets of polarization filters, wherein each set of polarization filters comprises at least two polarization filters with different polarization directions, wherein a respective polarization filter covers one of the columns.