公开(公告)号：US20230304792A1

公开(公告)日：2023-09-28

申请号：US18125639

申请日：2023-03-23

Applicant: RAM Photonics Industrial, LLC

Inventor： Per Adamson ,  Robert Balonek ,  Joseph Lawson

IPC: G01B11/26

CPC classification number: G01B11/26

Abstract: Systems and methods for measuring a cleave angle of an optical fiber using a cleave angle measurement system is provided herein. In an aspect, a method for measuring a cleave angle of an optical fiber may include providing a cleave angle measurement system. The cleave angle measurement system may include an optical fiber channel, an image sensor, and a light source. The method may include placing an optical fiber having a cleaved end into the optical fiber channel. The method may include determining an optical center of the image sensor. The method may include reflecting light transmitted by the light source off of the cleaved end of the optical fiber and detecting, by the image sensor, light reflected off of the cleaved end of the optical fiber. The cleave angle of the optical fiber may be determined based on the light reflected off of the cleaved end.

公开(公告)号：US11765461B2

公开(公告)日：2023-09-19

申请号：US17141598

申请日：2021-01-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Natsuko Sato

IPC: H04N23/695 ,  G01B11/26 ,  G03B13/32 ,  G03B5/06 ,  H04N23/58 ,  H04N23/67 ,  H04N23/68

CPC classification number: H04N23/695 ,  G01B11/26 ,  G03B5/06 ,  G03B13/32 ,  H04N23/58 ,  H04N23/67 ,  H04N23/673 ,  H04N23/675 ,  G03B2205/0023 ,  H04N23/682

Abstract: A control apparatus includes an angle control unit configured to change a tilt angle by tilting an imaging sensor, a first determination unit configured to determine a first area from among a plurality of areas in an image, an evaluation value acquisition unit configured to acquire a contrast evaluation value of each of second areas excluding the first area among the plurality of areas by changing the tilt angle through the angle control unit, and a second determination unit configured to determine the tilt angle for each area based on the contrast evaluation value acquired by the evaluation value acquisition unit, and determining the tilt angle of the image sensor based on the tilt angle determined for each area. The angle control unit tilts the image sensor so as to obtain the tilt angle determined by the second determination unit.

公开(公告)号：US11747206B2

公开(公告)日：2023-09-05

申请号：US17426843

申请日：2020-01-29

Applicant: PPG Industries Ohio, Inc.

Inventor： Antonio Paredes ,  Alison M. Norris ,  Richard Knight ,  William E. Eibon

IPC: G01B11/26 ,  G01J3/46 ,  G01J3/02 ,  G01N21/25 ,  G01N21/84

CPC classification number: G01J3/463 ,  G01B11/26 ,  G01J3/0264 ,  G01J3/0272 ,  G01N21/255 ,  G01N2021/8427 ,  G01N2201/0221

Abstract: A system for detection and coating analysis that comprises a digital camera and a light-based protractor positioned adjacent to or on a physical coating surface. The system identifyies a particular angular indication being displayed by the light-based protractor. The system then identifies a target color of the physical coating surface and identifies one or more target coating texture characteristics of the physical coating surface. Additionally, the system identifies a proposed coating that comprises a proposed color that matches the target color and proposed coating characteristics that match the one or more target coating texture characteristics. The system then displays, on a user interface, the proposed coating.

公开(公告)号：US11721573B2

公开(公告)日：2023-08-08

申请号：US17302437

申请日：2021-05-03

Applicant: HIWIN TECHNOLOGIES CORP.

Inventor： Yan-Yu Chen ,  Ming-Shiou Liu

IPC: H01L21/68 ,  G01B11/26 ,  G01B11/24

CPC classification number: H01L21/681 ,  G01B11/24 ,  G01B11/26

Abstract: A method for detecting positions of wafers includes: rotating a rotation table with a wafer thereon in a first direction at a first speed; detecting a contour of the wafer rotating in the first direction at the first speed to provide contour data; rotating the rotation table in a second direction at a second speed when an aiming feature of the wafer passes the detector in the first direction at the first speed; detecting the contour of the wafer rotating in the second direction at the second speed to provide new contour data; and stopping the rotation of the rotation table and the detection of the wafer according to an accumulation of contour data and corresponding rotation angles, to estimate an eccentric position of the wafer and a position of the aiming feature when the aiming feature passes the detector in the second direction at the second speed.

公开(公告)号：US20230184544A1

公开(公告)日：2023-06-15

申请号：US17925415

申请日：2020-05-19

Applicant: NipponTelegraph and Telephone Corporation

Inventor： Sohan Kawamura ,  Takashi Sakamoto ,  Masahiro Ueno ,  Yuichi Akage ,  Soichi Oka

IPC: G01B11/26

CPC classification number: G01B11/26

Abstract: An angle measurement device according to the present invention relates to an angle measurement device for measuring an incident angle of an incident light ray, and includes: at least one light deflector; a driving power supply; a light receiver; and a calculation unit. The light deflector is of a transmission type, has an electro-optic effect, and is configured to change an optical path of the light ray by a voltage applied from the driving power supply, and cause the light ray to enter the light receiver. The calculation unit is configured to calculate the incident angle based on the voltage at which an intensity of the light ray detected by the light receiver is maximum.

公开(公告)号：US11654829B2

公开(公告)日：2023-05-23

申请号：US15947938

申请日：2018-04-09

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Jeong Seok Han

IPC: G01B11/26 ,  B60R1/00

CPC classification number: B60R1/00 ,  B60R2300/402 ,  G01B11/26

Abstract: A camera system includes an image capturing device configured to capture a rear image of a vehicle, a sensor configured to measure a speed of the vehicle, a direction, a height, and an inclination angle of the image capturing device, an image processor configured to convert the rear image by using information measured by the sensor, an attachment mount that is attachable to various locations connected to the vehicle, and a communication device configured to transmit the converted rear image to an audio video navigation (AVN) system of the vehicle.

公开(公告)号：US20230155343A1

公开(公告)日：2023-05-18

申请号：US18149986

申请日：2023-01-04

Applicant: Gigaphoton Inc.

Inventor： Junichi FUJIMOTO ,  Takahito KUMAZAKI ,  Akiyoshi SUZUKI

IPC: H01S3/139 ,  H01S3/097 ,  H01S3/13 ,  G01B11/26 ,  G01D5/26 ,  G03F7/20

CPC classification number: H01S3/139 ,  H01S3/097 ,  H01S3/1305 ,  G01B11/26 ,  G01D5/26 ,  G03F7/7055 ,  H01S3/11

Abstract: A laser apparatus includes a first optical element, a second optical element, a first actuator configured to change a first wavelength component included in a pulse laser beam by changing a posture of the first optical element, a second actuator configured to change a second wavelength component included in the pulse laser beam by changing a posture of the second optical element, a first encoder configured to measure a position of the first actuator, a second encoder configured to measure a position of the second actuator, and a processor. The processor reads a first relation and a second relation and performs control of the first actuator based on the first relation and the position of the first actuator measured by the first encoder and control of the second actuator based on the second relation and the position of the second actuator measured by the second encoder.

公开(公告)号：US20230143407A1

公开(公告)日：2023-05-11

申请号：US18093422

申请日：2023-01-05

Applicant: NIKON CORPORATION

Inventor： Yuichi SHIBAZAKI

IPC: G03F7/20 ,  G01B11/26 ,  G01B11/00 ,  H01J37/304 ,  H01J37/317

CPC classification number: G03F7/70133 ,  G01B11/26 ,  G01B11/00 ,  G03F7/70775 ,  G03F7/70058 ,  H01J37/3045 ,  H01J37/3174 ,  H01J2237/3175 ,  H01J2237/202

Abstract: In corner sections of first to fourth quadrants whose origin point is a center of an upper surface of a stage, three each of two-dimensional heads are provided. The three each of two-dimensional heads include one first head and two second heads. The stage is driven, while measuring a position of the stage using three first heads that face a two-dimensional grating of a scale plate provided above the stage from the four first heads, and during the driving, difference data of measurement values of the two second heads with respect to the first head in a measurement direction are taken in for head groups to which the three first heads belong, respectively, and using the difference data, grid errors are calibrated.

公开(公告)号：US11643283B2

公开(公告)日：2023-05-09

申请号：US16913389

申请日：2020-06-26

Applicant: Hubei University

Inventor： Zhifeng Zhong ,  Shihui Wang ,  Yan Zhang ,  Jingjing Zhao ,  Pu Tan ,  Zhang Jiang ,  Min Zhou

IPC: B65G47/52 ,  B23Q7/14 ,  G01S17/06 ,  G01B11/14 ,  G01B11/26 ,  G01S17/88 ,  G01S17/931

CPC classification number: B65G47/52 ,  B23Q7/1447 ,  G01B11/14 ,  G01B11/26 ,  G01S17/06 ,  G01S17/88 ,  G01S17/931

Abstract: Provided is a vehicle measurement system for an automatic conveyor. The measurement system includes: an information measurement unit, disposed at a position higher than the ready-for-loading vehicle and including two laser radars: a rear radar and a side radar; a voice prompt unit, configured to send a voice prompt; and a control unit; where when the ready-for-loading vehicle is approaching, the rear radar measures a distance between it and the ready-for-loading vehicle in real time as a predetermined parking distance; when a value of the predetermined parking distance is within a predetermined range, the control unit controls the voice prompt unit to send a voice prompt for parking; and after the ready-for-loading vehicle stops, the information measurement unit measures the distance between the ready-for-loading vehicle and the rear radar, carriage size information, and a deviation angle of a parking position of the ready-for-loading vehicle from the predetermined parking area.

公开(公告)号：US11614323B2

公开(公告)日：2023-03-28

申请号：US16302966

申请日：2017-05-23

Applicant: Corning Incorporated

Inventor： Sang-ho Lim ,  Myunghwan Oh

IPC: G01B11/16 ,  C03B17/06 ,  G01B21/20 ,  G01B11/245 ,  G01B9/08 ,  G01B11/24 ,  G01B11/26 ,  G01L1/24 ,  C03B18/02 ,  G01N21/896

Abstract: A method of predicting the gravity-free shape of a glass sheet and a method of managing the quality of a glass sheet based on the gravity-free shape of the glass sheet. The initial shape of a glass sheet is determined. When the glass sheet is flattened, values of stress at a plurality of locations in the glass sheet are obtained. A shape that the glass sheet will have when the flattened glass sheet is deformed such that the values of stress are zero is predicted as a stress-induced shape and a gravity-free shape of the glass sheet is predicted by combining the initial shape and the stress-induced shape. Quality management is performed on glass sheets based on gravity-free shapes thereof predicted using the method of predicting the gravity-free shape of a glass sheet.