公开(公告)号：US2782685A

公开(公告)日：1957-02-26

申请号：US25449651

申请日：1951-11-02

Applicant: RCA CORP

Inventor： DIMMICK GLENN L ,  WIDDOP MARY E

IPC: G01J3/04 ,  G11B7/00

CPC classification number: G01J3/04 ,  G11B7/00

公开(公告)号：US2021232A

公开(公告)日：1935-11-19

申请号：US66380833

申请日：1933-03-31

Applicant: BAUSCH & LOMB

Inventor： GUSTAVE FASSIN

IPC: G01J3/04

CPC classification number: G01J3/04

公开(公告)号：US20250060252A1

公开(公告)日：2025-02-20

申请号：US18712579

申请日：2022-11-21

Applicant: CYTOVIVA, INC.

Inventor： James Melvin Beach ,  James Lawrence Uertz ,  Andrew Liu ,  Byron J. Cheatham ,  Samuel M. Lawrence

IPC: G01J3/32 ,  G01J3/04 ,  G06V10/58 ,  G06V20/40 ,  G06V20/69 ,  H04N23/10

Abstract: Various examples are provided related to hyperspectral imaging of moving microscopic sample elements. In one example, a method for hyperspectral imaging includes acquiring a series of optical images and corresponding hyperspectral data of a sample; compiling a movie comprising a series of frames each including one of the series of optical images and a slit line indicating a location of a slit for acquisition of the hyperspectral data; identifying a frame comprising an element of the sample located on the slit line; and analyzing the hyperspectral data corresponding to the optical image in the identified frame. Each optical image and its corresponding hyperspectral data are acquired simultaneously and identified by a time stamp or sequence number. The analysis can generate hyperspectral information about the element. In another example, a system for hyperspectral imaging includes a hyperspectral imaging device; an optical imaging device; and a computing device.

公开(公告)号：US12019272B2

公开(公告)日：2024-06-25

申请号：US17713770

申请日：2022-04-05

Applicant: Oak Analytics Inc.

Inventor： Ruibo Wang ,  James F. Gass

IPC: G02B6/14 ,  G01J3/04 ,  G01J3/44

CPC classification number: G02B6/14 ,  G01J3/04 ,  G01J3/4412

Abstract: One embodiment provides an optical spectrometer. The optical spectrometer can include a lens-and-filter system configured to collect light scattered from a sample, a spot converter configured to convert a substantially circular beam outputted from the lens-and-filter system into a substantially rectangular beam, and a slit comprising a rectangular aperture to allow a predetermined portion of the substantially rectangular beam to enter the rectangular aperture while blocking noise. The slit can further include at least one microelectromechanical systems (MEMS)-based movable structure configured to adjust a width of the rectangular aperture.

公开(公告)号：US11959804B2

公开(公告)日：2024-04-16

申请号：US17636844

申请日：2020-12-09

Applicant: SOOCHOW UNIVERSITY

Inventor： Jiacheng Zhu ,  Qiao Pan ,  Xinhua Chen ,  Weimin Shen

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/04

CPC classification number: G01J3/2823 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/04

Abstract: The invention provides a curved-slit imaging spectrometer, wherein a fiber bundle transfers a straight line image of a front objective lens to a curved slit, and the front objective lens doesn't need to have a curved image plane to directly abut the spectrometer, so that the system is less complicated, and the front objective lens and spectrometer have a simple structure. The arc-shaped or approximately arc-shaped curved slit matches the optimum imaging circle of the Offner-type spectrometer, thereby achieving an extra-long slit. The arced slit is 5 to 10 times longer than the straight slit of the classical Offner-type spectrometer. In the case of a compact size, the length of the slit can be greater than 100 mm. Also, the same spectral response function applies in different fields of view while presenting desirable imaging quality.

公开(公告)号：US11898907B1

公开(公告)日：2024-02-13

申请号：US17948153

申请日：2022-09-19

Applicant: Raytheon Company

Inventor： Benjamin James Lewis

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/04 ,  G01J3/18

CPC classification number: G01J3/0208 ,  G01J3/04 ,  G01J3/18 ,  G01J3/2823

Abstract: A spectrometer is configured to form a spectrally resolved image of electromagnetic radiation from an electromagnetic radiation source. The spectrometer can include an optical guide device configured to guide electromagnetic radiation along an optical path. The optical guide device can include a first prism positioned in the optical path. The optical guide device can further include a focusing optic. The first prism can include at least one freeform prism surface that comprises at least some degree of cylindrical curvature having freeform polynomial terms formed thereon, which surface can be a substantially cylindrical, a substantially acylindrical, or a substantially flat surface having freeform polynomial terms formed thereon.

公开(公告)号：US20230273068A1

公开(公告)日：2023-08-31

申请号：US18016084

申请日：2021-07-05

Applicant: CARL ZEISS JENA GMBH

Inventor： Jens HOFMANN ,  Dirk DOBERMANN ,  Michael BARTH

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/02 ,  G01J3/04

CPC classification number: G01J3/28 ,  G01J3/18 ,  G01J3/0291 ,  G01J3/04 ,  G01J3/0202

Abstract: The present invention relates to a spectrometer for spectral analysis of electromagnetic radiation. The spectrometer comprises an entry slit for entry of the electromagnetic radiation to be analysed and an imaging grating for diffraction of the electromagnetic radiation which has entered. The spectrometer additionally comprises a detector extending at least in one direction to detect the diffracted electromagnetic radiation, and also a support plate in which the entry slit is located. The spectrometer further comprises a housing which is mounted on the support plate, covers the detector and the entry slit and supports the imaging grating. According to the invention the spectrometer further comprises at least three floating bearings for floating mounting of the housing on the support plate, the floating bearings each enabling a displacement between the housing and the support plate on a directional axis and being distributed about a central axis of the housing.

公开(公告)号：US20220299369A1

公开(公告)日：2022-09-22

申请号：US17830167

申请日：2022-06-01

Applicant: WESTBORO PHOTONICS INC.

Inventor： TIMOTHY MOGGRIDGE ,  PAUL JOSEPH PRIOR

IPC: G01J3/40 ,  G01J3/28 ,  G01J3/02 ,  G01J3/04

Abstract: A variable focus imaging lens assembly has different, calibrated settings for each of multiple different wavelength ranges. Images are captured for each wavelength range using the different settings, corrected and stacked to form an image data cube. Using multiple wavelength ranges allows a scene or object to be imaged by multispectral imagers, hyperspectral imagers and imaging spectrometers using an overall wide wavelength range.

公开(公告)号：US11359966B2

公开(公告)日：2022-06-14

申请号：US16852243

申请日：2020-04-17

Applicant: WESTBORO PHOTONICS INC.

Inventor： Timothy Moggridge ,  Paul Joseph Prior

IPC: G01B11/02 ,  G01J3/40 ,  G01J3/28 ,  G01J3/02 ,  G01J3/04

Abstract: A variable focus imaging lens assembly has different, calibrated settings for each of multiple different wavelength ranges. Images are captured for each wavelength range using the different settings, corrected and stacked to form an image data cube. Using multiple wavelength ranges allows a scene or object to be imaged by multispectral imagers, hyperspectral imagers and imaging spectrometers using an overall wide wavelength range.

公开(公告)号：US11293803B2

公开(公告)日：2022-04-05

申请号：US16932870

申请日：2020-07-20

Applicant: Fudan University

Inventor： Liangyao Chen ,  Songyou Wang ,  Haibin Zhao ,  Yuxiang Zheng ,  Rongjun Zhang ,  Yuemei Yang ,  Jianke Chen ,  Anqing Jiang

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/04 ,  G01J3/28

Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.