中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

27 records (took 0.011 seconds)

    Circuit for background light suppression
    2.
    发明授权
    Circuit for background light suppression 有权

    公开(公告)号：US11977163B2

    公开(公告)日：2024-05-07

    申请号：US18265966

    申请日：2021-12-09

    Applicant: IFM Electronic GmbH ,  PMDTechnologies AG

    Inventor： Peter Runtemund ,  Carl Philip Heising

    IPC: G01C3/08 ,  G01S7/4914 ,  G01S7/4915 ,  G01S17/894

    CPC classification number: G01S17/894 ,  G01S7/4914 ,  G01S7/4915

    Abstract: Described is a circuit for background light suppression (SBI, 500) for a light propagation time sensor (22) which operates according to a phase measuring principle and the light propagation time pixels of which have integration nodes or diodes (Ga, Gb, diode_a, diode_b) for the accumulation of charges, having an input stage (50), an operational amplifier (OP) and an SBI current source (SQ), wherein the input phase (50) has bypass and common mode circuits (SBP, SVcm) via which signals of the integration nodes (Ga, Gb, diode_a, diode_b) are guided to the operational amplifier (OP) and via which the operational amplifier (OP) can be switched to a maximum detection or common mode operation, wherein the operational amplifier (OP) is designed such that based on the signals of the integration nodes (Ga, Gb, diode_a, diode_b) switched by the input stage (50) to the operational amplifier (OP), a gate voltage (gate_cs) is generated for the SBI current source (SQ), wherein the SBI current source (SQ) has a first current source (SQ1) for the maximum detection operation and a second and third current source (SQ2a, SQ2b) for the common mode operation wherein the current sources (SQ1, SQ2a, SQ2b) can be connected via switches (S) to integration nodes (Ga, Gb, diode_a, diode_b).

    PIXEL ARRAY FOR A CAMERA, CAMERA AND LIGHT PROPAGATION TIME CAMERA SYSTEM HAVING A CAMERA OF THIS KIND
    3.
    发明申请
    PIXEL ARRAY FOR A CAMERA, CAMERA AND LIGHT PROPAGATION TIME CAMERA SYSTEM HAVING A CAMERA OF THIS KIND 有权

    公开(公告)号：US20210036038A1

    公开(公告)日：2021-02-04

    申请号：US16966692

    申请日：2019-01-24

    Applicant: PMDTECHNOLOGIES AG

    Inventor： Florian SENNHENN

    IPC: H01L27/146 ,  H04N5/345 ,  H04N5/3745

    Abstract: The disclosure relates to a pixel array for a camera, in particular for a light propagation time camera, having: a plurality of pixel elements arranged in a matrix arrangement, wherein each individual pixel element has a photoelectric region and at least one other region which is non-sensitive to light; and a plurality of routing paths which are arranged in a grid-like manner and which divide the pixel array into fields. A group of first fields and a group of second fields are created, in which each of the first fields is provided by a photoelectric region of one of the pixel elements and each of the second fields is provided by the other regions, wherein the first fields and the second fields are arranged in an alternating manner similar to a chessboard. The disclosure further relates to a corresponding camera, in particular a light propagation time camera for a light propagation time camera system, and to a corresponding light propagation time camera system.

    Lighting device
    4.
    发明授权
    Lighting device 有权

    公开(公告)号：US10244604B2

    公开(公告)日：2019-03-26

    申请号：US15547159

    申请日：2016-01-22

    Applicant: PMDTechnologies AG

    Inventor： Bernhard Steinkamp ,  Holger Bette

    IPC: H05B37/02 ,  F21V25/04 ,  H01S5/00 ,  H01S5/068 ,  F21V23/04 ,  F21S41/16

    Abstract: The present invention concerns a lighting device comprising a source for generating electromagnetic radiation, and a beam shaper which is so arranged and adapted that in operation of the lighting device it spatially expands the electromagnetic radiation issuing from the source. In comparison therewith the object of the present invention is to provide such a lighting device which ensures eye safety even when the beam shaper is detached or damaged. For that purpose it is proposed according to the invention that the lighting device has a sensor which is so adapted that in operation of the lighting device it detects a state of the beam shaper, wherein the sensor and the source are so operatively connected together and adapted that if during operation of the lighting device the state of the beam shaper changes in such a way that electromagnetic radiation could issue from the lighting device without the beam shaper being in the beam path of the electromagnetic radiation the source is switched off.

    Time-of-flight Pixel With Charge Storage
    7.
    发明公开
    Time-of-flight Pixel With Charge Storage 审中-公开

    公开(公告)号：US20240038790A1

    公开(公告)日：2024-02-01

    申请号：US18265255

    申请日：2021-11-02

    Applicant: IFM Electronic GmbH ,  PMDTechnologies AG

    Inventor： Matthias Franke ,  Robert Rössler ,  Gerrit Lükens ,  Ana-maria Teodoreanu

    IPC: H01L27/146 ,  G01S7/481

    CPC classification number: H01L27/14607 ,  G01S7/4816 ,  H01L27/14625

    Abstract: The invention relates to a light transit time pixel comprising —at least one modulation gate (GA, GB) which has a photoactive region (FAB) and a storage region (MA, MB), said storage region (MA, MB) having a locally increased n-type doping below the modulation gate (GA, GB) and delimiting the photoactive region (FAB) of the modulation gate (GA, GB), —at least one transfer gate (TXA, TXB) which adjoins the storage region (MA, MB) of the modulation gate (GA, GB), —at least one reading diode (DA, DB) which follows the transfer gate (TXA, TXB), —at least one drain gate (DG) which adjoins one side of the light-sensitive region (FAB) of the modulation gate (GA, GB), and —at least one drain diode (DD) which follows the drain gate (DG).

    Time-of-flight camera
    8.
    发明授权
    Time-of-flight camera 有权

    公开(公告)号：US11525918B2

    公开(公告)日：2022-12-13

    申请号：US16500704

    申请日：2018-04-03

    Applicant: PMDTECHNOLOGIES AG

    Inventor： Stephan Ulrich ,  Lutz Heyne

    IPC: G01S17/36 ,  G01S7/48 ,  G01S17/894

    Abstract: The disclosure relates to a time-of-flight camera comprising: a time-of-flight sensor having several time-of-flight pixels for determining a phase shift of emitted and captured light, distance values being determined in accordance with the detected phase shifts, characterised in that the time-of-flight camera has a memory in which parameters of a point spread function, which characterise the time-of-flight camera and the time-of-flight sensor, are stored; an evaluation unit which is designed to deploy a detected complex-valued image in Fourier space, in accordance with the stored point-spread function, and a complex-valued image corrected by diffused light is determined and the phase shifts or distance values are determined using the corrected complex-valued image.

    Optical sensor device with deep and shallow control electrodes
    9.
    发明授权
    Optical sensor device with deep and shallow control electrodes 有权

    公开(公告)号：US11175389B2

    公开(公告)日：2021-11-16

    申请号：US16747084

    申请日：2020-01-20

    Applicant: Infineon Technologies AG ,  pmdtechnologies ag

    Inventor： Stefano Parascandola ,  Henning Feick ,  Matthias Franke ,  Dirk Offenberg ,  Jens Prima ,  Robert Roessler ,  Michael Sommer

    IPC: H01L27/146 ,  G01S7/4914 ,  G01S7/4915 ,  G01S17/36 ,  H04N13/257

    Abstract: An optical sensor device configured to detect a time of flight of an electromagnetic signal includes a semiconductor substrate having a main surface and a conversion region configured to convert at least a fraction of the electromagnetic signal into photo-generated charge carriers; a first control electrode formed in a trench extending from the main surface into the semiconductor substrate; a second control electrode disposed directly or indirectly on the main surface; a control circuit configured to apply a varying first potential to the first control electrode and to apply a varying second potential to the second control electrode, where the varying second potential has a fixed phase relationship to the first varying potential, to generate electric potential distributions in the conversion region to direct the photo-generated charge carriers; and a readout node arranged in the semiconductor substrate and configured to detect the directed photo-generated charge carriers.

    LASER DEVICE
    10.
    发明申请
    LASER DEVICE 有权

    公开(公告)号：US20240372330A1

    公开(公告)日：2024-11-07

    申请号：US18741655

    申请日：2024-06-12

    Applicant: TRUMPF Photonic Components GmbH ,  ifm electronic GmbH ,  pmdtechnologies ag

    Inventor： Holger Joachim Moench ,  Stephan Gronenborn ,  Samuel Freywald ,  Thomas Dietz

    IPC: H01S5/183 ,  H01S5/42

    Abstract: A laser device includes a semiconductor laser component. The semiconductor laser component includes a laser array. The laser array includes a plurality of semiconductor lasers emitting a laser light vertically. The laser device further includes an optics device. The optics device includes at least a second optics element, and a first optics element arranged between the second optics element and the laser array along an optical axis. The optics device is configured for expanding the laser light emitted from the semiconductor lasers, collimating the expanded laser light, and for shaping a beam profile of the collimated laser light.

Patent Agency Ranking