公开(公告)号：US11287514B2

公开(公告)日：2022-03-29

申请号：US16149256

申请日：2018-10-02

Applicant: Melexis Technologies NV

Inventor： Gaetan Koers ,  Wouter Leten ,  Sam Maddalena ,  Ross Kay

IPC: G01S7/481 ,  G01S17/02 ,  H01L31/12 ,  H01L27/146 ,  G01S17/04

Abstract: A sensor device (100) comprises an emitter device (106) arranged to emit electromagnetic radiation and having an emission region associated therewith. The sensor device (100) also comprises a detector device (108) arranged to receive electromagnetic radiation and having a detection region associated therewith, and an optical system (122). The emission region is spaced at a predetermined distance from the detection region. The optical system (122) defines a plurality of principal rays, a number of the plurality of principal rays intersecting the detection region. The number of the plurality of principal rays also intersect the emission region.