公开(公告)号：US20240344926A1

公开(公告)日：2024-10-17

申请号：US18629571

申请日：2024-04-08

Applicant: IonQ, Inc.

Inventor： Jonathan Albert MIZRAHI ,  Kai HUDEK

IPC: G01M11/02

CPC classification number: G01M11/0207

Abstract: The disclosure describes various aspects of different for automated testing of optical assemblies. A system is described that includes an arm (e.g., a motorized arm) configured to be positioned over an optical assembly having a base plate with multiple optical elements that form one or more optical beam paths. The system also includes at least one optical tool that is configured to be removably attached to the arm and has a measurement instrument to perform a specified test on at least one of the optical beam paths. The arm is configured to adjust its position over the optical assembly to move the optical tool to the correct place to perform the specified test. The system may also include an optical tool changer configured to hold the optical tool in a tool holder when not attached to the arm and to hold additional optical tools in respective tool holders.

公开(公告)号：US12072259B2

公开(公告)日：2024-08-27

申请号：US17367785

申请日：2021-07-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sanghui Park ,  Jinwook Lee

IPC: G01M11/02 ,  G02B7/02 ,  G01N21/17

CPC classification number: G01M11/0207 ,  G02B7/02 ,  G01N2021/178

Abstract: A resolution measurement apparatus includes a stage configured to receive a display module including an optical part. The stage includes an opening that overlaps the optical part, when viewed in a plan view, when the display module is disposed on the stage. The resolution measuring apparatus further includes a plurality of cameras disposed above the stage, a light source disposed under the stage and overlapping the opening when viewed in the plan view, and a lens disposed between the light source and the stage. The lens overlaps the opening when viewed in the plan view, and the optical part overlaps the lens, when viewed in the plan view, when the display module is disposed on the stage.

公开(公告)号：US12066638B2

公开(公告)日：2024-08-20

申请号：US17436671

申请日：2020-03-05

Applicant: KONRAD GMBH

Inventor： Michael Konrad ,  Claus Urban

IPC: G02B27/30 ,  G01B11/26 ,  G01M11/02 ,  G02B27/32 ,  G02B27/34 ,  G02B27/62 ,  H04N17/00 ,  H04N23/56 ,  H04N23/695

CPC classification number: G02B27/30 ,  G01B11/26 ,  G01M11/0207 ,  G01M11/0221 ,  G01M11/0264 ,  G02B27/32 ,  G02B27/34 ,  G02B27/62 ,  H04N17/002 ,  H04N23/56 ,  H04N23/695

Abstract: The invention relates to a collimator for testing a camera (6), comprising a collimator housing (1), wherein the collimator housing (1) has a longitudinal wall (8, 9) and two end walls (10, 11), the first end wall (10) having a light source (2) and the second end wall (11) having a lens (5), a reticle (4) being disposed between the lens (5) and the light source, with the reticle (4) being disposed obliquely with respect to the lens (5) and/or obliquely with respect to the longitudinal wall (8, 9) in the collimator housing (1).

公开(公告)号：US12028509B1

公开(公告)日：2024-07-02

申请号：US18528135

申请日：2023-12-04

Applicant: MLOptic Corp

Inventor： Pengfei Wu ,  Zhengyuan Wang

IPC: H04N17/00 ,  G01B11/25 ,  G01M11/02 ,  G02B13/22 ,  G02B27/00

CPC classification number: H04N17/002 ,  G01B11/25 ,  G01M11/02 ,  G01M11/0207 ,  G01M11/0214 ,  G01M11/0221 ,  G02B13/22 ,  G02B27/0012

Abstract: An optical target system for a device under test disposed in an optical path, the optical target system including a pupil, a lens system and a target configured to be adjustable in position along the optical path such that the object distance of the target with respect to the lens system, is adjustable, the lens system is disposed between the pupil and the target along the optical path, wherein a first virtual image cast behind the target is of a first size when the target is disposed at a first position along the optical path, a second virtual image cast behind the target is of a second size when the target is disposed at a second position along the optical path.

公开(公告)号：US20240192082A1

公开(公告)日：2024-06-13

申请号：US18286250

申请日：2022-03-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Hisanari TAKAHASHI ,  Takashi INOUE

IPC: G01M11/02

CPC classification number: G01M11/0207

Abstract: A dispersion measuring device includes a pulse forming unit, a light detection unit, a control unit, and an arithmetic operation unit. The control unit selectively outputs a first phase pattern and a second phase pattern. The pulse forming unit forms an optical pulse train from initial pulsed light, the optical pulse train including a plurality of optical pulses having a time difference from each other and having different center wavelengths from each other. The light detection unit detects a temporal waveform of the optical pulse train. The arithmetic operation unit estimates a wavelength dispersion amount of a measurement object based on a feature amount of the temporal waveform of the optical pulse train. When the first phase pattern is output, a pulse having a long center wavelength is generated first. When the second phase pattern is output, a pulse having a short center wavelength is generated first.

公开(公告)号：US12007296B2

公开(公告)日：2024-06-11

申请号：US17304952

申请日：2021-06-29

Applicant: Google LLC

Inventor： Timothy Bodiya

IPC: G01M11/02 ,  G01M11/00

CPC classification number: G01M11/0228 ,  G01M11/0207 ,  G01M11/35

Abstract: Optical gratings, such as those used in waveguide displays, may have large aspect ratios. For example, a grating characteristic (e.g., period, feature size, etc.) can be much smaller than the grating area. Variations in the grating characteristic over the grating area may appear like a secondary grating having a long grating period superimposed on a primary grating for which the optical grating was designed. Because variations responsible for the secondary grating occur over a long distance relative to the primary grating period, it may be difficult to locate and characterize these variations with testing methods designed for shorter distances. The present disclosure presents systems and methods to detect and characterize the secondary gratings quickly and efficiently.

公开(公告)号：US20240125670A1

公开(公告)日：2024-04-18

申请号：US18397977

申请日：2023-12-27

Applicant: Applied Materials, Inc.

Inventor： Jinxin FU ,  Kang LUO ,  Fariah HAYEE ,  Ludovic GODET

IPC: G01M11/02

CPC classification number: G01M11/0285 ,  G01M11/0207

Abstract: A method of optical device metrology is provided. The method includes introducing a first type of light into a first optical device during a first time period, the first optical device including an optical substrate and an optical film disposed on the optical substrate, the first optical device further including a first surface, a second surface, and one or more sides connecting the first surface with the second surface; and measuring, during the first time period, a quantity of the first type of light transmitted from a plurality of locations on the first surface or the second surface during the first time period, wherein the measuring is performed by a detector coupled to one or more fiber heads positioned to collect the light transmitted from the plurality of locations.

公开(公告)号：US20240085267A1

公开(公告)日：2024-03-14

申请号：US18388307

申请日：2023-11-09

Applicant: Adtran Networks SE

Inventor： Benjamin Wohlfeil ,  Gilda Raoof Mehrpoor

IPC: G01M11/02 ,  G01J9/02 ,  G01K11/32 ,  G01M11/00 ,  H01S5/0683 ,  H01S5/0687

CPC classification number: G01M11/0207 ,  G01J9/0246 ,  G01K11/32 ,  G01M11/0228 ,  G01M11/33 ,  H01S5/0683 ,  H01S5/06837 ,  H01S5/0687

Abstract: An optical detection device and method for detecting temperature changes and/or wavelength changes of an optical probe signal includes transmitting an optical probe signal having a predetermined wavelength to an optical input port of an optical waveguide; detecting first and second optical detection signal at first and second optical output ports via first and second opto-electrical converters which create corresponding first and second electrical signals; measuring values of the first and second electrical signal and determining an absolute temperature or a temperature change of the optical waveguide and/or an absolute wavelength value or a wavelength change of the optical probe signal via values measured of the first and second electrical signals and first and second previously determined wavelengths and temperature dependencies of both first and second power transfer functions,

公开(公告)号：US11808938B2

公开(公告)日：2023-11-07

申请号：US17334023

申请日：2021-05-28

Applicant: YOUNG OPTICS INC.

Inventor： Wei-Ting Chiu ,  Chu-Tsung Chan ,  Sandeep Kumar Paral ,  Chia-Chang Lee

IPC: G02B27/00 ,  G01J1/02 ,  G02B7/02 ,  G01M11/02

CPC classification number: G02B27/0006 ,  G01J1/0252 ,  G01M11/02 ,  G01M11/0207 ,  G01M11/0264 ,  G02B7/028

Abstract: An optical measurement apparatus includes a thermal insulation housing, a first light-transmissive plate, a second light-transmissive plate, a heat-conductive layer, a cooling source and a photosensor. The thermal insulation housing, the first light-transmissive plate and the second light-transmissive plate define a chamber. The heat-conductive layer is disposed in the chamber, the cooling source is coupled to the heat-conductive layer, and the photosensor is disposed outside the chamber and on one side of the second light-transmissive plate facing away from the first light-transmissive plate.

公开(公告)号：US11768390B2

公开(公告)日：2023-09-26

申请号：US17187294

申请日：2021-02-26

Applicant: HUVITZ CO., LTD.

Inventor： Dong Kun Oh ,  Hyun Chul Lee

IPC: G02C13/00 ,  G01M11/02 ,  G02B26/02

CPC classification number: G02C13/003 ,  G01M11/025 ,  G01M11/0207 ,  G02B26/02

Abstract: The blocker described comprises: a lens illumination light source; a light transmission and reflection device to reflect/transmit the light; an image sensor to detect light reflected by the light transmission and reflection device and thereby obtain an lens image; a lens meter to detect the light that has passed through the light transmission and reflection device to thereby measure lens characteristics; and a blocking member to attach a leap block to the lens. The light transmission and reflection device comprises: a first reflection plate having a central hole; a first rotating cylinder to be coupled to and to rotate the first reflection plate; a second rotating cylinder located inside and to rotate the first rotating cylinder; a second reflection plate, adjusted by the second rotating cylinder and configured to open or block the central hole in the first reflection plate; and driving means configured to drive the second rotating cylinder.