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1. 发明申请

US20090090866A1 CHARGED PARTICLE DETECTION DEVICES 失效
标题翻译：充电颗粒检测装置
公开(公告)号：US20090090866A1
公开(公告)日：2009-04-09
申请号：US11668846
申请日：2007-01-30
申请人： Xu ZHANG , Joe WANG , Zhong-Wei CHEN
发明人： Xu ZHANG , Joe WANG , Zhong-Wei CHEN
IPC分类号： G01T1/20 , G01N23/00 , H01J3/14
CPC分类号： H01J37/244 , H01J37/28 , H01J2237/2443 , H01J2237/24435 , H01J2237/2445 , H01J2237/24465
摘要： A charged particle detector consists of four independent light guide modules assembled together to form a segmented on-axis annular detector, with a center opening for allowing the primary charged particle beam to pass through. One side of the assembly facing the specimen is coated with or bonded to scintillator material as the charged particle detection surface. Each light guide module is coupled to a photomultiplier tube to allow light signals transmitted through each light guide module to be amplified and processed separately. A charged particle detector is made from a single block of light guide material processed to have a cone shaped circular cutout from one face, terminating on the opposite face to an opening to allow the primary charged particle beam to pass through. The opposite face is coated with or bonded to scintillator material as the charged particle detection surface. The outer region of the light guide block is shaped into four separate light guide output channels and each light guide output channel is coupled to a photomultiplier tube to allow light signal output from each channel to be amplified and processed separately.
摘要翻译：带电粒子检测器由四个独立的光导模块组成，组合在一起以形成分段的轴上环形探测器，其中心开口允许初级带电粒子束通过。面向样品的组件的一侧作为带电粒子检测表面涂覆或结合到闪烁体材料。每个光导模块耦合到光电倍增管，以允许通过每个光导模块传输的光信号被单独放大和处理。带电粒子检测器由一块光导材料制成，被处理成具有从一个面的锥形圆形切口，终止在与开口相对的面上以允许初级带电粒子束通过。相反的面被涂覆或与闪烁体材料结合，作为带电粒子检测表面。导光块的外部区域被成形为四个分开的光导输出通道，并且每个光导输出通道耦合到光电倍增管，以允许来自每个通道的光信号输出被单独放大和处理。

2. 发明授权

US12085676B2 Method for controlling sensor elements of a LIDAR measuring system 有权
公开(公告)号：US12085676B2
公开(公告)日：2024-09-10
申请号：US17046629
申请日：2019-04-03
申请人： Microvision, Inc.
发明人： Ralf Beuschel , Rainer Kiesel
IPC分类号： G01S7/481 , G01S7/484 , G01S7/4865 , G01S17/18
CPC分类号： G01S7/4815 , G01S7/484 , G01S7/4865 , G01S17/18
摘要： A method for controlling sensor elements of a LIDAR measuring system, wherein a sensor element is activated and deactivated during a measurement cycle, wherein a measurement process comprises a plurality of measurement cycles, wherein the sensor element is activated at a first time during a first measurement cycle and the same sensor element is activated at a second time during a second measurement cycle.

3. 发明授权

US11828881B2 Steered LIDAR system with arrayed receiver 有权
公开(公告)号：US11828881B2
公开(公告)日：2023-11-28
申请号：US16426889
申请日：2019-05-30
申请人： Microvision, Inc.
发明人： Jonathan A. Morarity , Alga Lloyd Nothern, III
IPC分类号： G01S7/4863 , G01S7/481 , G01S17/931 , G01S17/93 , G02B6/35
CPC分类号： G01S7/4863 , G01S7/4811 , G01S7/4817 , G01S17/931 , G02B6/3518 , G01S17/93
摘要： 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.

4. 发明申请

US20220390569A1 Scanning Laser Devices and Methods with Non-Uniform Optical Expansion and Pulse Energy Variation 有权
公开(公告)号：US20220390569A1
公开(公告)日：2022-12-08
申请号：US17303606
申请日：2021-06-03
申请人： Microvision, Inc.
发明人： Henry J. Baron , Alga Lloyd Nothern, III , Christopher Brian Adkins , Jonathan A. Morarity
IPC分类号： G01S7/481 , G02B26/10 , G01S7/484
摘要： 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.

5. 发明授权

US11513341B2 Microelectromechanical (MEMS) scanners for scanning laser devices 有权
公开(公告)号：US11513341B2
公开(公告)日：2022-11-29
申请号：US16511546
申请日：2019-07-15
申请人： Microvision, Inc.
发明人： Matthew Ellis
IPC分类号： G02B26/08 , G02B26/10 , H02N2/02 , H01L41/187
摘要： The embodiments described herein include scanners that can provide improved scanning laser devices. Specifically, the embodiments described herein provide scanners with a modular construction that includes one or more separately formed piezoelectric actuators coupled to a microelectromechanical system (MEMS) scan plate, flexure structures, and scanner frame. Such modular scanners can provide improved scanning laser devices, including scanning laser projectors and laser depth scanners, LIDAR systems, 3D motion sensing devices, gesture recognition devices, etc.

6. 发明授权

US11480660B2 Arrayed MEMS mirrors for large aperture applications 有权
公开(公告)号：US11480660B2
公开(公告)日：2022-10-25
申请号：US16506836
申请日：2019-07-09
申请人： Microvision, Inc.
发明人： Matthew Ellis , Jonathan A. Morarity , Alga Lloyd Nothern, III
IPC分类号： G01S7/481 , G02B26/10 , G02B26/08 , G01S17/10
摘要： 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.

7. 发明授权

US11092679B2 Compensation for laser light source misalignment in a multiple laser scanning TOF sensor system 有权
公开(公告)号：US11092679B2
公开(公告)日：2021-08-17
申请号：US16031505
申请日：2018-07-10
申请人： Microvision, Inc.
发明人： Henry J. Baron , Phillip R. Kent
IPC分类号： G01S7/00 , G01S7/497 , G01S17/89 , G01S7/481 , G01S7/4863 , G01S7/4865 , G01S17/10 , G01S7/51
摘要： Laser light pulses of at least two different wavelengths are reflected off a scanning mirror. A first time-of-flight distance measurement circuit receives reflected light pulses of a first wavelength and determines distances. A second time-of-flight distance measurement circuit receives reflected light pulses of a second wavelength and determines distances. The timing of transmission of laser light pulses of differing wavelengths are adjusted, and the data buffering of converted return pulses are adjusted, to compensate for laser light source misalignment.

8. 发明授权

US11002855B2 Occlusion-based height estimation 有权
公开(公告)号：US11002855B2
公开(公告)日：2021-05-11
申请号：US15390891
申请日：2016-12-27
申请人： Microvision, Inc.
发明人： Patrick J. McVittie , P. Selvan Viswanathan , Jonathan A. Morarity
IPC分类号： G01S17/46 , G06F3/041 , G06F3/01 , G06F3/042
摘要： 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.

9. 发明授权

US10761188B2 Transmitter/receiver disparity for occlusion-based height estimation 有权
公开(公告)号：US10761188B2
公开(公告)日：2020-09-01
申请号：US15390994
申请日：2016-12-27
申请人： Microvision, Inc.
发明人： P. Selvan Viswanathan , Jonathan A. Morarity , Alga Lloyd Nothern, III , Bin Xue
IPC分类号： G01C3/08 , G01S7/48 , G01S7/481 , G01S17/88 , G01S17/46 , G06F3/042 , G06F3/041
摘要： 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.

10. 发明授权

US10742942B2 Optical power sensing devices and methods 有权
公开(公告)号：US10742942B2
公开(公告)日：2020-08-11
申请号：US15894582
申请日：2018-02-12
申请人： Microvision, Inc.
发明人： Matthieu Saracco , Alga Lloyd Nothern, III , Thomas Byeman
IPC分类号： H04N9/31 , G02B27/14 , G02B5/30 , G02B26/10 , G02B26/08 , G02B27/10 , G01J1/42
摘要： Devices and methods are described herein to measure optical power in scanning laser projectors. In general, the devices and methods utilize a polarizing component and photodiode to measure optical power being generated by at least one laser light source. The polarizing component is configured to polarize at least a portion of the laser beam in a way that improves the accuracy and consistency of this optical power measurement. Specifically, the polarizing component filters at least a portion of the laser beam for one polarization state in a way that facilitates improved reliability in the amount of laser light directed into the photodiode.

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