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    Optical sensor module and method for manufacturing an optical sensor module for time-of-flight measurement
    1.
    发明授权
    Optical sensor module and method for manufacturing an optical sensor module for time-of-flight measurement 有权

    公开(公告)号：US11733355B2

    公开(公告)日：2023-08-22

    申请号：US16326755

    申请日：2017-08-24

    Applicant: ams AG

    Inventor： Robert Kappel ,  Mario Manninger ,  Todd Bishop

    IPC: G01S7/481 ,  G01S17/08 ,  G01S7/497 ,  G01S7/48

    CPC classification number: G01S7/4813 ,  G01S7/4808 ,  G01S7/497 ,  G01S17/08

    Abstract: An optical sensor module for time-of-flight measurement comprises an optical emitter, a main detector and a reference detector which are arranged in or on a carrier. An opaque housing of the optical sensor module has a first chamber and a second chamber which are separated by a light barrier. The housing has a cover section and is arranged on the carrier such that the optical emitter is located inside the first chamber, the main detector is located inside the second chamber and the reference detector is located outside the first chamber. Furthermore, a main surface of the cover section is positioned opposite the carrier. The optical emitter is arranged and configured to emit light through a first aperture in the cover section, and the main detector is arranged and configured to detect light entering the second chamber through a second aperture in the cover section. A reference path is established between the optical emitter and the reference detector inside the optical sensor module, and confined by the main surface of the cover section and the carrier. Additionally, a method for manufacturing an optical sensor module for time-of-flight measurement is presented.

    Light sensor arrangement and method for temperature compensation in a light sensor arrangement
    2.
    发明授权
    Light sensor arrangement and method for temperature compensation in a light sensor arrangement 有权

    公开(公告)号：US10006806B2

    公开(公告)日：2018-06-26

    申请号：US14067862

    申请日：2013-10-30

    Applicant: ams AG

    Inventor： Gonggui Xu ,  Lloyd Hasley ,  Cecil Aswell ,  Mario Manninger

    IPC: G01J1/44 ,  G01J1/16 ,  H01L27/144 ,  H01L31/0216 ,  G01J1/42

    CPC classification number: G01J1/44 ,  G01J1/1626 ,  G01J1/4204 ,  G01J1/4228 ,  G01J2001/4247 ,  H01L27/1443 ,  H01L31/02164

    Abstract: A light sensor arrangement according to the proposed principle comprises at least one first unshielded well (D0) and at least one second shielded well (D1) in a substrate (P). The at least one first unshielded well (D0) is being exposed to incident light (λ) and configured to generate a first sensor signal (Ch0) as a function of the incident light (λ). The at least one second shielded well (D1) in the substrate (p) being shielded from the incident light (λ) and configured to generate a second sensor signal (Ch1) as a function of the incident light (λ). The light sensor arrangement further comprises means for temperature compensation providing the first and second sensor signals (Ch0, Ch1) as temperature compensated sensor signals as a function of substrate temperature. Means to determine spectral content of the incident light (λ) are provided to determine the spectral content as a function of the temperature compensated first and second sensor signals (Ch0, Ch1).

    METHOD FOR CALIBRATING A TIME-OF-FLIGHT SYSTEM AND TIME-OF-FLIGHT SYSTEM
    7.
    发明申请
    METHOD FOR CALIBRATING A TIME-OF-FLIGHT SYSTEM AND TIME-OF-FLIGHT SYSTEM 审中-公开

    公开(公告)号：US20200271765A1

    公开(公告)日：2020-08-27

    申请号：US16648462

    申请日：2018-09-21

    Applicant: ams AG

    Inventor： Kerry Glover ,  Manfred Lueger ,  Robert Kappel ,  Christian Mautner ,  Mario Manninger

    IPC: G01S7/497 ,  G01S7/487

    Abstract: A method is presented for calibrating a time-of-flight system having a time-of-flight sensor located behind a cover plate. The method involves emitting a plurality of sending pulses of light in response to respective trigger pulses of a control signal and detecting received pulses of light. Respective difference values are determined which are representative of a time period between one of the sending pulses and one of the received pulses. The difference values are accumulated into a number of bins of at least one histogram. The method further involves recording at least one crosstalk response in the histogram within a predetermined range of bins, and calibrating the histogram using the recorded crosstalk response. Finally, an output signal is generated which is indicative of a time-of-flight based on an evaluation of the calibrated histogram.

    3D-INTEGRATED OPTICAL SENSOR AND METHOD OF PRODUCING A 3D-INTEGRATED OPTICAL SENSOR
    8.
    发明申请
    3D-INTEGRATED OPTICAL SENSOR AND METHOD OF PRODUCING A 3D-INTEGRATED OPTICAL SENSOR 审中-公开

    公开(公告)号：US20190237500A1

    公开(公告)日：2019-08-01

    申请号：US16312145

    申请日：2017-06-02

    Applicant: ams AG

    Inventor： Hubert Enichlmair ,  Martin SCHREMS ,  Gregor Toschkoff ,  Thomas Bodner ,  Mario Manninger

    IPC: H01L27/146

    CPC classification number: H01L27/14621 ,  H01L27/14623 ,  H01L27/14636 ,  H01L27/14685

    Abstract: A 3D-Integrated optical sensor comprises a semiconductor substrate, an integrated circuit, a wiring, a filter layer, a transparent spacer layer, and an on-chip diffuser. The semiconductor substrate has a main surface. The integrated circuit comprises at least one light sensitive area and is arranged in the substrate at or near the main surface. The wiring provides an electrical connection to the integrated circuit and is connected to the integrated circuit. The wiring is arranged on or in the semiconductor substrate. The filter layer has a direction dependent transmission characteristic and is arranged on the integrated circuit. In fact, the filter layer at least covers the light sensitive area. The transparent spacer layer is arranged on the main surface and, at least partly, encloses the filter layer. A spacer thickness is arranged to limit a spectral shift of the filter layer. The on-chip diffuser is arranged on the transparent spacer layer.

    Current source and method for providing a driving current
    9.
    发明授权
    Current source and method for providing a driving current 有权
    提供驱动电流的电流源和方法

    公开(公告)号：US09148914B2

    公开(公告)日：2015-09-29

    申请号：US13874351

    申请日：2013-04-30

    Applicant: ams AG

    Inventor： Michael Böhm ,  Peter Trattler ,  Mario Manninger

    IPC: H05B37/02 ,  H05B33/08

    CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

    Abstract: In one embodiment a current source comprises an input (In) for receiving a brightness signal (Sb), and an output (Out) for providing a driving current (Id) for at least one light-emitting diode, LED, wherein the current source (CS) is configured to extract a first and a second current value (idac_high, idac_low) from the brightness signal (Sb), to derive a duty cycle value (Smod) from the brightness signal (Sb) and to modulate the driving current (Id) as a function of the duty cycle value (Smod) in a pulse-width modulation comprising the first and the second current values (idac_high, idac_low). Furthermore, a method for providing a current is described.

    Abstract translation: 在一个实施例中，电流源包括用于接收亮度信号（Sb）的输入（In）和用于为至少一个发光二极管LED提供驱动电流（Id）的输出（Out），其中电流源 （CS）被配置为从亮度信号（Sb）提取第一和第二电流值（idac_high，idac_low），以从亮度信号（Sb）导出占空比值（Smod），并且调制驱动电流 Id）作为包括第一和第二电流值（idac_high，idac_low）的脉冲宽度调制中的占空比值（Smod）的函数。 此外，描述了提供电流的方法。

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