公开(公告)号：US11733092B2

公开(公告)日：2023-08-22

申请号：US17929876

申请日：2022-09-06

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: G01J1/42 ,  G01J3/51 ,  G01J3/02 ,  G01S17/89 ,  G01S7/481 ,  G01S17/86 ,  G01J3/46 ,  G01S17/931 ,  G01S7/4863 ,  G01S7/4865 ,  H01L31/02 ,  G01S17/88

CPC classification number: G01J1/4204 ,  G01J3/0224 ,  G01J3/46 ,  G01J3/51 ,  G01S7/4815 ,  G01S7/4817 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/86 ,  G01S17/89 ,  G01S17/931 ,  H01L31/02027 ,  G01S17/88

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.

公开(公告)号：US11726205B2

公开(公告)日：2023-08-15

申请号：US17239410

申请日：2021-04-23

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: G01S17/00 ,  G01S17/08 ,  G01S17/89 ,  G01S7/497 ,  G01S7/481 ,  G01S17/10 ,  G01S7/4863 ,  B81B5/00 ,  G01S17/931 ,  G06V20/58 ,  H01L31/02 ,  G01S17/88 ,  G02B27/30 ,  H01L27/146 ,  G02B26/10 ,  G02B3/00 ,  G02B26/08 ,  H01L25/16 ,  H01S5/183 ,  H01S5/40

CPC classification number: G01S17/08 ,  B81B5/00 ,  G01S7/4815 ,  G01S7/4817 ,  G01S7/4863 ,  G01S7/497 ,  G01S17/10 ,  G01S17/88 ,  G01S17/89 ,  G01S17/931 ,  G02B26/10 ,  G02B27/30 ,  G06V20/58 ,  H01L27/14643 ,  H01L31/02027 ,  G02B3/0056 ,  G02B3/0068 ,  G02B26/08 ,  G02B26/105 ,  H01L25/167 ,  H01S5/183 ,  H01S5/4075

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.

公开(公告)号：US11585906B2

公开(公告)日：2023-02-21

申请号：US16696540

申请日：2019-11-26

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Marvin Liu Shu

IPC: G01S7/484 ,  G01S7/481 ,  G01S17/10

Abstract: An electronically scanning emitter array that includes a two-dimensional array of light emitters arranged in k emitter banks. Each of the k emitter banks can include a subset of the light emitters in the two-dimensional array and can be independently operable to emit light from its subset of emitters. The electronically scanning emitter array can further include first and second capacitor banks coupled to provide energy to the two-dimensional array of light emitters and emitter array driving circuitry coupled to the first and second capacitor banks and to the k emitter banks. Each of the first and second capacitor banks can include at least one capacitor. The emitter array driving circuitry can include a first high-side switch coupled between the first capacitor bank and a voltage source, a second high-side switch coupled between the second capacitor bank and the voltage source, and k/2 low-side switches coupled between the k emitter banks and ground; and the emitter driving circuitry can be configured to fire one emitter bank in the k emitter banks at a time according to a firing sequence until each of the k emitter banks are fired.

公开(公告)号：US11422236B2

公开(公告)日：2022-08-23

申请号：US17552303

申请日：2021-12-15

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/89 ,  G01S17/08

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.

公开(公告)号：US11196979B2

公开(公告)日：2021-12-07

申请号：US17317809

申请日：2021-05-11

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: H04N13/218 ,  G02B27/00 ,  G02B3/00 ,  G02B30/27 ,  G02B27/46 ,  G02B5/20 ,  G02B5/00

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 lenses that collimate photons passed by an aperture, 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.

公开(公告)号：US11178381B2

公开(公告)日：2021-11-16

申请号：US17323962

申请日：2021-05-18

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: H04N13/218 ,  G02B27/46 ,  G02B3/00 ,  G02B30/27 ,  G02B5/00 ,  G02B5/20

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 lenses that collimate photons passed by an aperture, 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.

公开(公告)号：US20210333394A1

公开(公告)日：2021-10-28

申请号：US17347174

申请日：2021-06-14

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: G01S17/10 ,  H01L27/146 ,  H01L31/107 ,  G01S7/497 ,  G01S7/4865 ,  G01S7/4863 ,  G01S7/481 ,  G01S17/89 ,  G01S17/42

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.

公开(公告)号：US20200341144A1

公开(公告)日：2020-10-29

申请号：US16396564

申请日：2019-04-26

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Marvin Liu Shu

IPC: G01S17/10 ,  G01S17/88 ,  G01S7/481 ,  G01S7/484 ,  G01S7/486

Abstract: An optical measurement system includes a photosensor that includes one or more photosensitive elements. Each of the photosensitive elements may generate signals when a photon is detected, and the number of photons detected for each photosensor may be accumulated in an integration register. The integration register may accumulate photon counts independent of a parallel data path that stores photon counts in time bins based on photon arrival times to form a histogram representation. The total photon count in the integration register can be used to estimate ambient background light and properly set signal thresholds for detecting reflected light signals represented in the histogram.

公开(公告)号：US10705193B2

公开(公告)日：2020-07-07

申请号：US16213843

申请日：2018-12-07

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Dmitri Garbuzov ,  Daniel Lu ,  Wil Selby ,  Mushfiqur Rouf ,  Henru Wang ,  Kairen Wong

IPC: G01S7/497 ,  G01S17/93 ,  G01S17/87 ,  G01S17/89 ,  G01C21/20 ,  G01C21/30 ,  G01S7/48 ,  G01S7/51 ,  G01S17/42 ,  B60Q9/00 ,  G05D1/02 ,  B60R1/00 ,  G01C21/36

Abstract: Methods, systems, and devices are provided for calibrating a light ranging system and using the system to track environmental objects. In embodiments, the approach involves installing light ranging devices, such as lidar devices, on the vehicle exterior. The light ranging system may be calibrated using a calibration device to scan the vehicle exterior and construct a three-dimensional model of the vehicle exterior comprising the positions of the installed light ranging devices on the vehicle exterior. The calibrated light ranging system may use the model in conjunction with ranging data collected by the installed light ranging devices to track objects in the environment. In this way, the light ranging system may detect a proximity of environmental objects and help a driver of the vehicle avoid potential collisions. The light ranging system may further measure the vehicle exterior and thereby detect changes to the vehicle exterior.

公开(公告)号：US10557750B2

公开(公告)日：2020-02-11

申请号：US15934338

申请日：2018-03-23

Applicant: Ouster, Inc.

Inventor： Angus Pacala ,  Mark Frichtl

IPC: G01J1/02 ,  G01J1/08 ,  G01J1/44

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.