公开(公告)号：US10190905B2

公开(公告)日：2019-01-29

申请号：US15119113

申请日：2015-02-13

Applicant: ams AG

Inventor： Yu Wang ,  David Mehrl ,  Greg Stoltz ,  Kerry Glover ,  Tom Dunn

IPC: G01J1/02 ,  G01S17/02 ,  H03K17/94 ,  G01S7/481 ,  G01V8/12 ,  H01L31/173

Abstract: An optical sensor arrangement comprises an optical barrier which is placed between a light-emitting device and a photodetector. Herein the light-emitting device and the photodetector are arranged on a first plane and are covered by a cover. The photodetector exhibits an active zone. The optical barrier exhibits an extent along a first principal axis, which is pointing parallel to the line connecting the centers of the light-emitting device and the photodetector. Herein the extent is greater than a dimension of the active zone. The optical barrier is designed to block light emitted by the light-emitting device that otherwise would be reflected by the cover by means of specular reflection and would reach the photodetector. The optical barrier is designed to pass light emitted by the light-emitting device and scattered on or above an outer surface of the cover.