公开(公告)号：US20240167955A1

公开(公告)日：2024-05-23

申请号：US18420704

申请日：2024-01-23

Applicant: Gemological Institute of America, Inc. (GIA)

Inventor： Hiroshi TAKAHASHI

IPC: G01N21/64 ,  G01N21/87 ,  G01N33/38

CPC classification number: G01N21/6456 ,  G01N21/87 ,  G01N33/381 ,  G01N2021/6471 ,  G01N2201/062 ,  G01N2201/0634 ,  G01N2201/068 ,  G01N2201/12

Abstract: Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

公开(公告)号：US11927533B2

公开(公告)日：2024-03-12

申请号：US17985654

申请日：2022-11-11

Applicant: Essenlix Corporation

Inventor： Ji Qi ,  Stephen Y. Chou ,  Wei Ding

IPC: G01N21/64

CPC classification number: G01N21/6428 ,  G01N21/6458 ,  G01N2021/6439 ,  G01N2201/021 ,  G01N2201/0634 ,  G01N2201/0636

Abstract: A multi-mode illumination system, including: a first illumination module; a second illumination module; and a third illumination module, as disclosed herein.

公开(公告)号：US20230296517A1

公开(公告)日：2023-09-21

申请号：US18119189

申请日：2023-03-08

Applicant: KLA Corporation

Inventor： Grace Hsiu-Ling Chen

IPC: G01N21/64 ,  G01N21/88

CPC classification number: G01N21/6456 ,  G01N21/6428 ,  G01N21/88 ,  G01N2201/0634 ,  G01N2201/0636 ,  G01N2021/6439

Abstract: A method is disclosed. The method may include generating a first optical image of a sample with a first inspection sub-system. The first optical image may be generated when a first set of photoluminescent markers are emitting photoluminescent illumination at a first time interval. The method may include generating additional optical images with an additional inspection sub-system. The additional optical images may be generated when additional photoluminescent markers are emitting photoluminescent illumination at additional time intervals. The method may include generating an accumulated optical image based on the first optical image and the additional optical images. The method may include determining a location of the photoluminescent markers based on the accumulated optical image. The method may include determining a pattern of the sample based on the determined location of the photoluminescent markers.

公开(公告)号：US11762180B2

公开(公告)日：2023-09-19

申请号：US16622542

申请日：2018-06-15

Applicant: UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS

Inventor： Kishan Dholakia

IPC: G02B21/00 ,  G01N21/64

CPC classification number: G02B21/0032 ,  G01N21/6458 ,  G01N21/6486 ,  G02B21/0076 ,  G01N2201/0633 ,  G01N2201/0634 ,  G01N2201/06113 ,  G01N2201/08 ,  G02B2207/114

Abstract: A light sheet imaging system, such as a light sheet microscope, comprises an illumination arrangement for generating a light sheet for three-photon excitation of a fluorescent sample, and a fluorescence collection arrangement for collecting fluorescence generated in the sample as a result of three-photon excitation by the light sheet. The light sheet may be a non-diffractive, propagation-invariant light sheet. The light sheet may be formed from and/or comprise a Bessel beam. A method of light sheet imaging comprises using a light sheet for three-photon excitation of a fluorescent sample, and collecting fluorescence generated in the sample as a result of three-photon excitation of the sample by the light sheet. Such a method may be used for light sheet microscopy.

公开(公告)号：US11686680B2

公开(公告)日：2023-06-27

申请号：US17058064

申请日：2018-05-23

Applicant: FUNDACIÓ INSTITUT DE CIÈNCIES FOTÒNIQUES ,  INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATS

Inventor： Valerio Pruneri ,  Roland Alfonso Terborg ,  Josselin Pello ,  Marc Jofre ,  Pedro Martinez

IPC: G01N21/552

CPC classification number: G01N21/554 ,  G01N2201/0634 ,  G01N2201/0636

Abstract: The invention relates to an apparatus for probing a sample comprising a light source for emitting an illuminating light beam, a birefringent element for splitting the illuminating light beam into two sheared beams, a reflective element for reflecting the two sheared beams, wherein the apparatus is configured such that the reflected beams propagate through the birefringent element for recombining the reflected beams, and a detector for detecting the recombined beam, wherein the sample is arrangeable in the optical path of the sheared beams or at the backside of a reflective surface in the optical path of the sheared beams, the reflective surface exhibiting a surface plasmon resonance or a localized surface plasmon resonance.

公开(公告)号：US20230168186A1

公开(公告)日：2023-06-01

申请号：US18070022

申请日：2022-11-28

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Nathaniel David Wetmore

IPC: G01N21/31

CPC classification number: G01N21/31 ,  G01N2201/127 ,  G01N2201/0634

Abstract: Methods and apparatus for obtaining a corrected digital mode spectrum for a chemically strengthened (CS) substrate having a curved surface are disclosed. The methods include digitally capturing transverse magnetic (TM) and transverse electric (TE) mode spectra of the CS substrate to form a digital mode spectrum image using an evanescent prism coupling system having a system calibration for measuring flat CS substrates. The method further includes establishing a calibration correction based on the difference in the digitally captured TM and TE mode spectra as compared to a reference TM and TE mode spectra for a reference CS substrate. The calibration correction is applied to the digital mode spectrum image to form the corrected digital mode spectrum image, which can be processed using the system calibration for measuring flat CS substrates to determine a refractive index profile and stress characteristics for the curved CS substrate.

公开(公告)号：US20180180532A1

公开(公告)日：2018-06-28

申请号：US15390697

申请日：2016-12-26

Applicant: Sheng-Hao TSENG ,  Kang-Yu CHU ,  METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE

Inventor： Ming-Hui CHEN ,  Kang-Yu CHU ,  Sheng-Hao TSENG

IPC: G01N21/25 ,  G02B5/02 ,  G02B3/00 ,  G02B19/00 ,  G01N21/27

CPC classification number: G01N21/255 ,  G01J3/00 ,  G01N21/31 ,  G01N21/474 ,  G01N2021/3181 ,  G01N2201/0221 ,  G01N2201/06113 ,  G01N2201/0627 ,  G01N2201/0634 ,  G02B5/0278 ,  G02B19/0014 ,  G02B19/0047 ,  G02B2003/0093

Abstract: A multiple wavelength optical system includes plural solid state light sources, an optical diffuser, a lens assembly, and at least one photodetector. The solid state light sources have different wavelength ranges respectively. The optical diffuser has an incident surface and an exit surface opposite to the incident surface. The solid state light sources are disposed opposite the incident surface, and the lens assembly is disposed opposite the exit surface. Each of the solid state light sources faces the incident surface in the same direction. The lights of the solid state light sources enter the optical diffuser and exit from the exit surface, and then are focused by the lens assembly. Finally, the focused lights are projected on a surface of an object. At least one photodetector receives the reflected lights and the penetrating lights from the surface of the object.

公开(公告)号：US20180120155A1

公开(公告)日：2018-05-03

申请号：US15796290

申请日：2017-10-27

Applicant: VERIFOOD, LTD.

Inventor： Sagee Rosen ,  Idan Bakish ,  Uri Kinrot

IPC: G01J3/02 ,  G01N21/01 ,  G01N21/25 ,  G01J3/28 ,  G01J3/36

CPC classification number: G01J3/0272 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0216 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/2803 ,  G01J3/36 ,  G01J2003/104 ,  G01J2003/2806 ,  G01N21/01 ,  G01N21/255 ,  G01N21/33 ,  G01N21/35 ,  G01N21/65 ,  G01N2021/0118 ,  G01N2021/6417 ,  G01N2201/0221 ,  G01N2201/0627 ,  G01N2201/0634 ,  G01N2201/0691

Abstract: A hand held spectrometer is used to illuminate the object and measure the one or more spectra. The spectral data of the object can be used to determine one or more attributes of the object. In many embodiments, the spectrometer is coupled to a database of spectral information that can be used to determine the attributes of the object. The spectrometer system may comprise a hand held communication device coupled to a spectrometer, in which the user can input and receive data related to the measured object with the hand held communication device. The embodiments disclosed herein allow many users to share object data with many people, in order to provide many people with actionable intelligence in response to spectral data.

公开(公告)号：US09891097B2

公开(公告)日：2018-02-13

申请号：US14859354

申请日：2015-09-21

Applicant: GLOBAL UNICHIP CORPORATION ,  TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.

Inventor： Chang-Ming Liu ,  Pi-Tsan Lo ,  Shih-Hua Hsu ,  Chien-Hao Lin ,  Teng-Hui Lee ,  Tsung-Ju Hsieh

IPC: G01J1/02 ,  G01J1/04 ,  G01J1/08 ,  G01J1/42

CPC classification number: G01J1/0295 ,  G01J1/0418 ,  G01J1/0474 ,  G01J1/08 ,  G01J1/4228 ,  G01J2001/083 ,  G01J2001/4247 ,  G01N2201/0634

Abstract: A brightness calibration method used in an optical detection system includes a single source illuminator and a probe card. The single source illuminator is configured to illuminate the probe card. The probe card has a plurality of detection sites. The brightness calibration method includes: sequentially detecting brightness values at the detection sites through one of a plurality of diffusers by a sensing chip; sequentially detecting transparencies of the diffusers at one of the detection sites by the sensing chip; and selecting and respectively disposing the diffusers corresponding to larger ones of the transparencies over the detection sites corresponding to smaller ones of the brightness values, and selecting and respectively disposing the diffusers corresponding to smaller ones of the transparencies over the detection sites corresponding to larger ones of the brightness values.

公开(公告)号：US09885671B2

公开(公告)日：2018-02-06

申请号：US14731861

申请日：2015-06-05

Applicant: KLA-Tencor Corporation

Inventor： Paul D. Horn

IPC: G01N21/00 ,  G01N21/95 ,  G01N21/88 ,  G01N21/47

CPC classification number: G01N21/9503 ,  G01N21/47 ,  G01N21/8806 ,  G01N2021/8816 ,  G01N2201/062 ,  G01N2201/0634 ,  G01N2201/068

Abstract: Disclosed are methods and apparatus for imaging a rounded edge of a sample, such as a wafer with a beveled edge. In one embodiment, the system includes a curved diffuser having an internal surface for positioning towards the rounded edge of the sample and an external surface opposite the internal surface and light sources for generating a plurality of illumination beams adjacent to a plurality of positions on the external surface of the diffuser so that the diffuser outputs uniform light onto the rounded edge of the sample at a wide range of incident angles. The system further includes a sensor for receiving light scattered from the rounded edge of the sample in response to the incident light and generating a detected signal for generating an image. These elements are partially or entirely integrated into a compact assembly.