公开(公告)号：US20200186765A1

公开(公告)日：2020-06-11

申请号：US16211630

申请日：2018-12-06

Applicant: Microvision, Inc.

Inventor： Matthieu Saracco ,  Alga Lloyd Nothern, III ,  Jonathan A. Morarity

IPC: H04N9/31 ,  G02B27/00 ,  G03B21/20

Abstract: Chromatic aberrations are corrected on a first axis of a lens system by the lens system itself. Chromatic aberrations caused by the lens system on a second axis of the lens system are compensated for by varying the timing of laser light pulses of different wavelengths. In visible projection systems, red, green, and blue laser light pulses for a single display pixel are produced at different times as a function of pixel position.

公开(公告)号：US20180181259A1

公开(公告)日：2018-06-28

申请号：US15390927

申请日：2016-12-27

Applicant: Microvision, Inc.

Inventor： Jonathan A. Morarity ,  Patrick J. McVittie ,  P. Selvan Viswanathan ,  Ru Chen ,  Justin R. Zilke

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G01S17/00 ,  G01S17/66 ,  G06F3/017 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/042 ,  G06F3/0423 ,  G06F2203/04101 ,  G06F2203/04108 ,  G06T7/70

Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.

公开(公告)号：US20180180717A1

公开(公告)日：2018-06-28

申请号：US15390994

申请日：2016-12-27

Applicant: Microvision, Inc.

Inventor： P. Selvan Viswanathan ,  Jonathan A. Morarity ,  Alga Lloyd Nothern, III ,  Bin Xue

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/88 ,  G01S17/46 ,  G06F3/0488 ,  G06F3/042

Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.

公开(公告)号：US20180180716A1

公开(公告)日：2018-06-28

申请号：US15390891

申请日：2016-12-27

Applicant: Microvision, Inc.

Inventor： Patrick J. McVittie ,  P. Selvan Viswanathan ,  Jonathan A. Morarity

IPC: G01S7/48 ,  G01S17/46 ,  G01S7/481 ,  G06F3/042 ,  G06F3/0488

CPC classification number: G01S17/46 ,  G06F3/017 ,  G06F3/0418 ,  G06F3/0423 ,  G06F3/0426 ,  G06F2203/04101

Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.

公开(公告)号：US20160341955A1

公开(公告)日：2016-11-24

申请号：US14718508

申请日：2015-05-21

Applicant: Microvision, Inc.

Inventor： Patrick J. McVittie ,  Jonathan A. Morarity ,  Damon M. Domjan

IPC: G02B26/08 ,  G02B27/01 ,  G02B26/10

CPC classification number: G02B26/0841 ,  G02B26/0833 ,  G02B26/10 ,  G02B27/0101 ,  H03L7/06 ,  H04N9/3135 ,  H04N9/3194

Abstract: A drive circuit for a resonant system provides an excitation signal having an amplitude and a phase. The resonant system provides a feedback signal representing an oscillation amplitude. The amplitude of the excitation signal is reduced for a substantially constant feedback signal amplitude by modifying the excitation signal phase.

Abstract translation: 用于谐振系统的驱动电路提供具有振幅和相位的激励信号。 谐振系统提供表示振荡幅度的反馈信号。 通过修改激励信号相位，激励信号的幅度对于基本恒定的反馈信号幅度而减小。

公开(公告)号：US11828881B2

公开(公告)日：2023-11-28

申请号：US16426889

申请日：2019-05-30

Applicant: Microvision, Inc.

Inventor： Jonathan A. Morarity ,  Alga Lloyd Nothern, III

IPC: G01S7/4863 ,  G01S7/481 ,  G01S17/931 ,  G01S17/93 ,  G02B6/35

CPC classification number: G01S7/4863 ,  G01S7/4811 ,  G01S7/4817 ,  G01S17/931 ,  G02B6/3518 ,  G01S17/93

Abstract: A light detection and ranging system includes synchronously scanning transmit and receive mirrors that scan a pulsed fanned laser beam in two dimensions. Imaging optics image a receive aperture onto an arrayed receiver that includes a plurality of light sensitive devices. Adaptive methods dynamically modify the size and location of the field of view as well as laser pulse properties in response to internal and external sensors data.

公开(公告)号：US20220390569A1

公开(公告)日：2022-12-08

申请号：US17303606

申请日：2021-06-03

Applicant: Microvision, Inc.

Inventor： Henry J. Baron ,  Alga Lloyd Nothern, III ,  Christopher Brian Adkins ,  Jonathan A. Morarity

IPC: G01S7/481 ,  G02B26/10 ,  G01S7/484

Abstract: The embodiments described herein provide systems and methods that can improve performance in scanning laser devices. Specifically, the systems and methods utilize a non-uniform variation in optical expansion coupled with variation in the energy level of laser light pulses to provide an improved effective range over a scanning area. In general, the improved effective range varies over the scan field, with relatively long effective range in some areas of the scan field and relatively short effective range in other areas of the scan field. This varying range over the scan field is facilitated by expansion optics that provide a non-uniform variation in optical expansion for laser light pulses relative to position along a first axis in the scan field and by a light source controller that varies the energy level of the laser light pulses according to position along the first axis of the scan field.

公开(公告)号：US11480660B2

公开(公告)日：2022-10-25

申请号：US16506836

申请日：2019-07-09

Applicant: Microvision, Inc.

Inventor： Matthew Ellis ,  Jonathan A. Morarity ,  Alga Lloyd Nothern, III

IPC: G01S7/481 ,  G02B26/10 ,  G02B26/08 ,  G01S17/10

Abstract: A light detection and ranging system includes multiple scanning mirror assemblies to increase a receive aperture. The multiple scanning mirror assemblies are controlled to mimic the operation of one large scanning mirror. The multiple scanning mirror assemblies may be arranged in one-dimensional arrays or two-dimensional arrays. Two arrays of scanning mirror assemblies provide for scanning in two dimensions.

公开(公告)号：US11002855B2

公开(公告)日：2021-05-11

申请号：US15390891

申请日：2016-12-27

Applicant: Microvision, Inc.

Inventor： Patrick J. McVittie ,  P. Selvan Viswanathan ,  Jonathan A. Morarity

IPC: G01S17/46 ,  G06F3/041 ,  G06F3/01 ,  G06F3/042

Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.

公开(公告)号：US10761188B2

公开(公告)日：2020-09-01

申请号：US15390994

申请日：2016-12-27

Applicant: Microvision, Inc.

Inventor： P. Selvan Viswanathan ,  Jonathan A. Morarity ,  Alga Lloyd Nothern, III ,  Bin Xue

IPC: G01C3/08 ,  G01S7/48 ,  G01S7/481 ,  G01S17/88 ,  G01S17/46 ,  G06F3/042 ,  G06F3/041

Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.