MULTISPECTRAL RANGING/IMAGING SENSOR ARRAYS AND SYSTEMS

    公开(公告)号:US20200116558A1

    公开(公告)日:2020-04-16

    申请号:US16534838

    申请日:2019-08-07

    Applicant: Ouster, Inc.

    Abstract: A multispectral sensor array can include a combination of ranging sensor channels (e.g., LIDAR sensor channels) and ambient-light sensor channels tuned to detect ambient light having a channel-specific property (e.g., color). The sensor channels can be arranged and spaced to provide multispectral images of a field of view in which the multispectral images from different sensors are inherently aligned with each other to define an array of multispectral image pixels. Various optical elements can be provided to facilitate imaging operations. Light ranging/imaging systems incorporating multispectral sensor arrays can operate in rotating and/or static modes.

    ACCURATE PHOTO DETECTOR MEASUREMENTS FOR LIDAR

    公开(公告)号:US20180259645A1

    公开(公告)日:2018-09-13

    申请号:US15909628

    申请日:2018-03-01

    Applicant: Ouster, Inc.

    Abstract: A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.

    OPTICAL SYSTEM FOR COLLECTING DISTANCE INFORMATION WITHIN A FIELD

    公开(公告)号:US20180217236A1

    公开(公告)日:2018-08-02

    申请号:US15934613

    申请日:2018-03-23

    Applicant: Ouster, Inc.

    CPC classification number: G01S7/4816 G01S7/4817 G01S17/08 G01S17/89

    Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.

    SYSTEMS AND METHODS FOR CALIBRATING AN OPTICAL DISTANCE SENSOR

    公开(公告)号:US20180209841A1

    公开(公告)日:2018-07-26

    申请号:US15934338

    申请日:2018-03-23

    Applicant: Ouster, Inc.

    Abstract: A calibration system is provided including an aperture layer, a lens layer, an optical filter, a pixel layer and a regulator. The aperture layer defines a calibration aperture. The lens layer includes a calibration lens substantially axially aligned with the calibration aperture. The optical filter is adjacent the lens layer opposite the aperture layer. The pixel layer is adjacent the optical filter opposite the lens layer and includes a calibration pixel substantially axially aligned with the calibration lens. The calibration pixel detects light power of an illumination source that outputs a band of wavelengths of light as a function of a parameter. The regulator modifies the parameter of the illumination source based on a light power detected by the calibration pixel.

    OPTICAL SYSTEM FOR COLLECTING DISTANCE INFORMATION WITHIN A FIELD

    公开(公告)号:US20220201267A1

    公开(公告)日:2022-06-23

    申请号:US17549675

    申请日:2021-12-13

    Applicant: Ouster, Inc.

    Abstract: An optical system for collecting distance information within a field is provided. The optical system may include lenses for collecting photons from a field and may include lenses for distributing photons to a field. The optical system may include lens tubes that collimate collected photons, optical filters that reject normally incident light outside of the operating wavelength, and pixels that detect incident photons. The optical system may further include illumination sources that output photons at an operating wavelength.

    LIGHT RANGING DEVICE HAVING AN ELECTRONICALLY SCANNED EMITTER ARRAY

    公开(公告)号:US20210318434A1

    公开(公告)日:2021-10-14

    申请号:US17239410

    申请日:2021-04-23

    Applicant: Ouster, Inc.

    Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.

    ROTATING COMPACT LIGHT RANGING SYSTEM
    9.
    发明申请

    公开(公告)号:US20190179028A1

    公开(公告)日:2019-06-13

    申请号:US16209867

    申请日:2018-12-04

    Applicant: Ouster, Inc.

    Abstract: A light ranging system including a shaft; a first circuit board assembly that includes a stator assembly comprising a plurality of stator elements arranged about the shaft on a surface of the first circuit board assembly; a second circuit board assembly rotationally coupled to the shaft, wherein the second circuit board assembly includes a rotor assembly comprising a plurality of rotor elements arranged about the shaft on a surface of the second circuit board assembly such that the plurality of rotor elements are aligned with and spaced apart from the plurality of stator elements; a stator driver circuit disposed on either the second or the first circuit board assemblies and configured to provide a drive signal to the plurality of stator elements, thereby imparting an electromagnetic force on the plurality of rotor elements to drive a rotation of the second circuit board assembly about the shaft; and a light ranging device mechanically coupled to the second circuit board assembly such that the light ranging device rotates with the second circuit board assembly.

    LIGHT RANGING DEVICE WITH MEMS SCANNED EMITTER ARRAY AND SYNCHRONIZED ELECTRONICALLY SCANNED SENSOR ARRAY

    公开(公告)号:US20190011567A1

    公开(公告)日:2019-01-10

    申请号:US16028164

    申请日:2018-07-05

    Applicant: Ouster, Inc.

    Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.

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