公开(公告)号：US09952324B2

公开(公告)日：2018-04-24

申请号：US15596293

申请日：2017-05-16

Applicant: ESPROS Photonics AG

Inventor： Martin Popp

IPC: H01L27/146 ,  G01S17/89 ,  G01S7/491

CPC classification number: G01S17/89 ,  G01S7/4914

Abstract: TOF distance sensor for capturing the distance to an object by receiving radiation reflected by the object, said radiation emanating from a radiation source modulated by a modulation frequency, comprising a pixel matrix for recording a pixel image. The pixel matrix consists of demodulation pixels which are designed for rear-side reception of the radiation. The demodulation pixels comprise a conversion region for generating charge carriers from the received radiation, and a separating device for separating the charge carriers in accordance with the modulation frequency, and also a stop for partitioning-off the conversion region from the separating device in relation to the charge carriers, and also an aperture for passing the charge carriers from the conversion region into the separating device. The TOF distance sensor is embodied in such a way that in each case at least two demodulation pixels form a common aperture.

公开(公告)号：US10754014B2

公开(公告)日：2020-08-25

申请号：US15799000

申请日：2017-10-31

Applicant: ESPROS Photonics AG ,  Valeo Schalter und Sensoren GmbH

Inventor： Martin Popp ,  Beat De Coi ,  Jan Simon ,  Peter Horvath ,  Lin Lin ,  Thomas Schuler ,  Felix Mueller ,  Heiko Hofmann

IPC: G01S7/486 ,  G01S17/10 ,  H01L27/148 ,  G01S7/4861 ,  G01S7/4865 ,  G01S7/4863 ,  H01L27/146 ,  G01S17/89

Abstract: In order to measure distances precisely, a receiver device for determining a distance from an object is proposed, comprising: a receiver having a semiconductor structure with a photosensitive region for generating photo-induced charge carriers, which region faces the rear side, and having a transportation region, which faces the front side, wherein the photosensitive region and the transportation region are spatially separated from one another by a separation layer which has a passage between the photosensitive region and the transportation region, wherein the transportation region has an arrangement of at least two gates lying one next to the other, at least one of the gates thereof being located in the overlapping region of the passage.

公开(公告)号：US11307296B2

公开(公告)日：2022-04-19

申请号：US16075847

申请日：2016-02-08

Applicant: DENSO CORPORATION ,  ESPROS PHOTONICS AG

Inventor： Toshiaki Nagai ,  Martin Popp ,  Cengiz Tugsav Kupcu

IPC: G01S7/497 ,  G01S17/36 ,  G01S7/481 ,  G01S7/4911 ,  G01S17/894 ,  G01S17/931

Abstract: The present disclosure relates to a time-of-flight distance measuring device. The light source (24) includes a plurality of emitting portions (70, 72), each of which illuminates a respective one of the sub-regions (R1, R2). The light receiver (26) includes a plurality of receiving portions (74, 76) corresponding to respective ones of the emitting portions (70, 72). The first controller (28) controls (i) a first emitting portion (70) to emit the emitted light including an Nth-order harmonic component of a fundamental frequency and (ii) a second emitting portion (72) to emit the emitted light including an Mth-order harmonic component. The second controller (30) controls a particular receiving portion (74) corresponding to the first emitting portion (70) to be sensible to the Nth-order Mth-order harmonic components. The multipath detector (82) detects occurrence of the multipath error when the particular receiving portion (74) senses both the Nth-order and Mth-order components.