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11. 发明授权

US11917304B2 Optical distance measurement system and distance measurement method thereof 有权
公开(公告)号：US11917304B2
公开(公告)日：2024-02-27
申请号：US17530938
申请日：2021-11-19
申请人： PixArt Imaging Inc.
发明人： Guo-Zhen Wang
IPC分类号： G01B11/14 , H04N23/741 , H04N23/71 , H04N23/73
CPC分类号： H04N23/741 , G01B11/14 , H04N23/71 , H04N23/73
摘要： There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.

12. 发明公开

US20240060768A1 Optical Displacement Sensor 审中-公开
公开(公告)号：US20240060768A1
公开(公告)日：2024-02-22
申请号：US18267314
申请日：2021-12-14
申请人： SensiBel AS
发明人： Håkon Sagberg , Matthieu Lacolle
IPC分类号： G01B11/14 , H04R23/00 , H04R29/00
CPC分类号： G01B11/14 , H04R23/008 , H04R29/004
摘要： An optical displacement sensor comprises a reflective surface and one or more diffraction gratings which, together with the reflective surface, each define a respective interferometric arrangement. The reflective surface is moveable relative to the diffraction grating(s) or vice versa. Light from a light source propagates via the interferometric arrangement(s) to produce an interference pattern at a respective set of photo detectors. Each interference pattern depends on the separation between the reflective surface and the respective grating. A collimating optical arrangement at least partially collimates the light between the light source and the diffraction grating(s). For the or each interferometric arrangement, when the reflective surface or the diffraction grating is in a zero-displacement position, the optical path length L of the light propagating between the diffraction grating and the reflective surface satisfies the relationship:

L
=

T
z

⁢
n

2

,

to within 20% of

T
z

2

,

where n is an integer; where Tz is the Talbot length, defined by:

T
z

=

λ

1
-

1
-

λ
2

p
2

,

where λ is the wavelength of the light, and where p is the grating period of the respective diffraction grating.

13. 发明授权

US11906282B2 Systems for determining at least one condition proximate the system 有权
公开(公告)号：US11906282B2
公开(公告)日：2024-02-20
申请号：US17644142
申请日：2021-12-14
申请人： Baker Hughes Holdings LLC
发明人： Anusha Chilukuri , Othon R. Monteiro
IPC分类号： G01B11/06 , G01N17/04 , E21B47/135 , E21B47/00 , G01B11/14
CPC分类号： G01B11/0675 , E21B47/006 , E21B47/135 , G01B11/14 , G01N17/04
摘要： Sensing systems include a tube defining a Fabry-Perot cavity and an optical fiber including a distal end disposed within the Fabry-Perot cavity and a proximal end. A corrodible material caps the Fabry-Perot cavity. Devices for sensing corrosion of downhole equipment include an optical fiber with a corrodible material disposed over a distal end of the optical fiber. Systems for sensing a condition in equipment include an optical fiber with a fiber Bragg grating proximate a distal end thereof and a mass of sensor material coupled to the distal end of the optical fiber. The mass of sensor material is suspended from above the fiber Bragg grating. Other systems for sensing a condition in a wellbore include an optical fiber and a plurality of fiber Bragg gratings along a length thereof. A plurality of sensor materials are coupled to the optical fiber and surround respective fiber Bragg gratings.

14. 发明授权

US11867494B2 Optical displacement sensor 有权
公开(公告)号：US11867494B2
公开(公告)日：2024-01-09
申请号：US17195690
申请日：2021-03-09
申请人： Keyence Corporation
发明人： Daiki Matsumoto , Choryon Oh
IPC分类号： G01B11/02 , G01B11/14 , G01S7/481 , G01S7/51 , G01S17/08
CPC分类号： G01B11/026 , G01B11/14 , G01S7/4813 , G01S7/51 , G01S17/08
摘要： Provided is an optical displacement sensor that allows a housing serving as a head to be downsized. A relay cable extending from the head is integrated with a body. The head is primarily responsible for projecting and receiving light to and from a to-be-detected object, while the body is made up of a power supply circuit, a display, and an operation part. The head includes a green laser light source and emits the green laser light to form a spot on a surface of the to-be-detected object.

15. 发明公开

US20230417532A1 INTERFEROMETER DISPLACEMENT MEASUREMENT SYSTEM AND METHOD 审中-公开
公开(公告)号：US20230417532A1
公开(公告)日：2023-12-28
申请号：US18037655
申请日：2021-10-22
申请人： BEIJING U-PRECISION TECH CO., LTD. , Beijing United Victory Precision Technology Co., Ltd.
发明人： Guohua SUN , Xiaoliang GAO , Lei XU
IPC分类号： G01B9/02001 , G01B11/14 , G01B9/02055
CPC分类号： G01B9/02001 , G01B11/14 , G01B9/02077 , G01B2290/70
摘要： Interferometer displacement measurement system and method are disclosed, wherein, a measurement light is processed by a first polarization splitting prism, a first ¼ wave plate, a first splitting prism, an optical waveguide component and a reflector, and then is returned to a first photoeletric detector and a second photoeletric detector. The reference light is processed by a second polarization splitting prism, a second ¼ wave plate, a second splitting prism and a reflecting mirror, and then is returned to the first photoeletric detector and the second photoeletric detector. The first photoeletric detector forms a measurement signal according to the processed measurement light and the processed reference light, and the second photoeletric detector forms a reference signal according to the processed measurement light and the processed reference light. Displacement information of the object to be detected is determined according to the measurement signal and the reference signal.

16. 发明授权

US11845163B2 Depth and angle sensor attachment for a power tool 有权
公开(公告)号：US11845163B2
公开(公告)日：2023-12-19
申请号：US17038637
申请日：2020-09-30
申请人： MILWAUKEE ELECTRIC TOOL CORPORATION
发明人： Gareth Mueckl , Tauhira Hoossainy , Leo Mikat-Stevens , Logan Blair , Jake McDermott , Jonathon R. Nord , Jared Shurtleff , Joshua Kundinger , John von Helms, Jr. , Nicholas Dobernig , Matthew Post
IPC分类号： B25B21/00 , B25F5/00 , B25B23/00 , G01B11/14 , G01B11/26 , G01S15/42
CPC分类号： B25B21/00 , B25B23/00 , B25F5/00 , G01B11/14 , G01B11/26 , G01S15/42
摘要： A power tool including a sensor attachment, a housing, a motor, and a power tool controller. The power tool controller is operable or configured to control power provided to the motor. The sensor attachment is coupled to the power tool's housing and includes a first non-contact sensor and a sensor controller. The sensor controller receives signals from the first non-contact sensor related to distance to a work surface and determines a fastener depth based on the signals from the first non-contact sensor. If the fastener depth is greater than or equal to a desired fastener depth, the sensor controller generates and sends a control signal to the power tool controller. In response, the power tool controller turns off or cuts power to the motor.

17. 发明公开

US20230400295A1 METHODS AND APPARATUS FOR USING RANGE DATA TO PREDICT OBJECT FEATURES 审中-公开
公开(公告)号：US20230400295A1
公开(公告)日：2023-12-14
申请号：US18297916
申请日：2023-04-10
申请人： Cognex Corporation
发明人： CHEN GAO , Ivan Bachelder
IPC分类号： G01B11/06 , G01B11/14 , G01B11/28
CPC分类号： G01B11/0608 , G01B11/14 , G01B11/28
摘要： Embodiments relate to predicting height information for an object. First distance data is determined at a first time when an object is at a first position that is only partially within the field-of-view. Second distance data is determined at a second, later time when the object is at a second, different position that is only partially within the field-of-view. A distance measurement model that models a physical parameter of the object within the field-of-view is determined for the object based on the first and second distance data. Third distance data indicative of an estimated distance to the object prior to the object being entirely within the field-of-view of the distance sensing device is determined based on the first distance data, the second distance data, and the distance measurement model. Data indicative of a height of the object is determined based on the third distance data.

18. 发明授权

US11842625B2 Social distancing devices and methods 有权
公开(公告)号：US11842625B2
公开(公告)日：2023-12-12
申请号：US17454867
申请日：2021-11-15
申请人： James J. Bitetto , John G. Tutunjian
发明人： James J. Bitetto , John G. Tutunjian
IPC分类号： G08B5/36 , G08B3/10 , F21V21/08 , F21V21/30 , F21V23/04 , F21V14/02 , F21S9/02 , G06V40/10 , F21Y115/10 , G08B5/38 , F21W131/30 , A42B1/244 , A42B3/04 , F21V33/00 , B25J9/16 , G08B21/02 , G02B7/00 , G01B11/14
CPC分类号： G08B5/36 , F21S9/02 , F21V14/02 , F21V21/08 , F21V21/30 , F21V23/0464 , F21V23/0471 , G06V40/103 , G08B3/10 , A42B1/244 , A42B3/044 , A42B3/0433 , A42B3/0446 , B25J9/1666 , B25J9/1676 , F21V33/0008 , F21W2131/30 , F21Y2115/10 , G01B11/14 , G02B7/002 , G05B2219/31286 , G05B2219/39091 , G05B2219/40219 , G05B2219/40455 , G05B2219/40475 , G05B2219/40544 , G06V40/10 , G06V40/107 , G08B5/38 , G08B21/0202
摘要： A device for indicating appropriate social distancing includes the ability to project light (in various forms and in a various ways) onto the ground in a manner visible by the user and those around them. A boundary of the projected light can be set to an acceptable social distance and can include different colors to indicated varying social distances for varying levels of trusted individuals. Proximity sensors set to appropriate distancing requirements, along with the varying levels of trust can be implemented into multiple devices being used in a group setting.

19. 发明公开

US20230384223A1 METHOD AND FLUORESCENCE MICROSCOPE FOR DETERMINING THE LOCATION OF INDIVIDUAL FLUORESCENT DYE MOLECULES BY MEANS OF ADAPTIVE SCANNING 审中-公开
公开(公告)号：US20230384223A1
公开(公告)日：2023-11-30
申请号：US18031698
申请日：2021-10-15
申请人： ABBERIOR INSTRUMENTS GMBH
发明人： Benjamin HARKE , Christian WURM , Lars KASTRUP , Roman SCHMIDT
IPC分类号： G01N21/64 , G01B11/14 , G06T7/70 , G02B21/00
CPC分类号： G01N21/6458 , G01B11/14 , G06T7/70 , G02B21/0076 , G06T2207/10064 , G06T2207/10061 , G06T2207/20021 , G06T2207/30241 , G06T2207/30204 , G06T2207/30242 , G06T2207/20084 , G06T2207/20081 , G06T2207/10152
摘要： The present invention is a method for spatially highly accurate location determination of individual dye molecules of a fluorescent dye by scanning with an intensity distribution of a scanning light having a local minimum. The invention is characterized by the fact that the scanning is not performed uniformly for all dye molecules, but is individually adapted to the dye molecule to be scanned and, if necessary, to its environment in the sample, in order to achieve the most accurate location determination possible with the smallest possible number of fluorescence photons.

20. 发明授权

US11821849B2 Defective product determination method for vehicle wheel, non-transitory storage medium, and defective product determination device for vehicle wheel 有权
公开(公告)号：US11821849B2
公开(公告)日：2023-11-21
申请号：US17690622
申请日：2022-03-09
申请人： CENTRAL MOTOR WHEEL CO., LTD.
发明人： Morio Suganuma , Akira Sakakibara , Jürgen Schlesinger , Andreas Niehues
IPC分类号： G01N21/952 , G01B11/14 , G01N21/95 , G01B11/24
CPC分类号： G01N21/952 , G01B11/14 , G01B11/24 , G01N21/9515
摘要： A defective product determination method for a vehicle wheel includes: locating, as a locating step by a controller, a lowest point on a welding mark due to radiation of a laser beam within a target range from an inner peripheral surface of a wheel rim to a position spaced away by a specified distance inward in a radial direction of the vehicle wheel; and determining, as a determination step by the controller, that the vehicle wheel is a defective product when a defective product determination condition is satisfied. The defective product determination condition includes, as a necessary condition, a condition that a relative distance of the lowest point with respect to the inner peripheral surface of the wheel rim in the radial direction of the vehicle wheel is equal to or smaller than a reference distance.

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