公开(公告)号：US20180276843A1

公开(公告)日：2018-09-27

申请号：US15534294

申请日：2015-12-07

Applicant: BASF SE

Inventor： Robert SEND ,  Ingmar BRUDER ,  Sebastian VALOUCH ,  Stephan IRLE ,  Erwin THIEL ,  Christoph LUNGENSCHMIED ,  Mustapha AL HELWI

IPC: G06T7/70 ,  G01C3/08 ,  H04N5/225 ,  H04N5/232 ,  A63F13/213

CPC classification number: G06T7/70 ,  A63F13/213 ,  G01C3/06 ,  G01C3/08 ,  G02B3/14 ,  H04N5/2256 ,  H04N5/23212

Abstract: An optical detector (110) is disclosed, comprising: at least one optical sensor (122) adapted to detect a light beam (120) and to generate at least one sensor signal, wherein the optical sensor (122) has at least one sensor region (126), wherein the sensor signal of the optical sensor (122) is dependent on an illumination of the sensor region (126) by the light beam (120), wherein the sensor signal, given the same total power of the illumination, is dependent on a width of the light beam (120) in the sensor region (126); at least one focus-tunable lens (128) located in at least one beam path (130) of the light beam (120), the focus-tunable lens (128) being adapted to modify a focal position of the light beam (120) in a controlled fashion; at least one focus-modulation device (136) adapted to provide at least one focus-modulating signal (138) to the focus-tunable lens (128), thereby modulating the focal position; at least one imaging device (140) being adapted to record an image; and at least one evaluation device (142), the evaluation device (142) being adapted to evaluate the sensor signal and, depending on the sensor signal, to effect a recording of the image by the imaging device (140).