公开(公告)号：US11067444B2

公开(公告)日：2021-07-20

申请号：US15977425

申请日：2018-05-11

Applicant: Neolitics, Inc.

Inventor： Sean M. Christian

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/02 ,  G01J3/26 ,  G01J3/12

Abstract: A spectroscope includes a light source, at least one static optical element for manipulating or structuring light, at least two adaptive optical elements and at least one detector. The at least two adaptive optical elements are configured to partition an optical function of spectral sorting from at least one of the following optical function: routing, attenuation, and/or encoding. The light source, the at least one static optical element, and the at least two adaptive optical elements are configured to direct light from the light source into first and second distinct light channels, the first light channel containing a sample to be analyzed.

公开(公告)号：US20210215602A1

公开(公告)日：2021-07-15

申请号：US17082095

申请日：2020-10-28

Applicant: Block Engineering, LLC

Inventor： Petros Kotidis ,  Erik Deutsch ,  Ninghui Zhu ,  Daniel J. Cavicchio, JR.

IPC: G01N21/39 ,  B82Y20/00 ,  G01N21/35 ,  H01S5/00 ,  H01S5/14 ,  H01S5/34 ,  G01J3/433 ,  G01J3/10 ,  G01J3/45 ,  G02B21/06 ,  H01S5/40 ,  G01J3/26 ,  G01N21/27 ,  G02B21/00

Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.

公开(公告)号：US11060915B2

公开(公告)日：2021-07-13

申请号：US16649332

申请日：2018-09-07

Applicant: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA

Inventor： Giuseppe Antonacci

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/26

Abstract: A spectrometer is provided which comprises a Virtually Imaged Phased Array member configured to receive an electromagnetic input radiation and to generate an electromagnetic output radiation, in which a spectrum of the electromagnetic output radiation is dispersed along a dispersion axis (x) transverse to an optical axis (z) of propagation of the electromagnetic output radiation; a Fourier lens adapted to convert the output electromagnetic radiation into a spectral pattern; an image sensor adapted to detect the spectral pattern; and at least one diffraction mask arranged along the optical axis (z) for propagating the output electromagnetic radiation, in a position not coincident with a spectral plane of the spectrometer. Through the diffraction mask, which comprises a material blocking the transmission of the output electromagnetic radiation, an aperture is obtained which allows the transmission of the output electromagnetic radiation, and whose edge comprises at least one inclined segment.

公开(公告)号：US11060913B2

公开(公告)日：2021-07-13

申请号：US16620305

申请日：2018-06-11

Applicant: Lumentum Technology UK Limited

Inventor： Adrian Perrin Janssen

IPC: G01J3/26 ,  G01J3/02 ,  G02B5/28 ,  G02B7/00 ,  G02B6/293 ,  G02B26/00

Abstract: According to a first aspect of the present invention, there is provided an optical filter. The optical filter comprises first and second optical elements, and one or more expansion elements. The first and second optical elements are arranged along a common axis, each terminates in a flat surface perpendicular to the axis. The flat surfaces are separated by a gap having a width d, such that the flat surfaces form a Fabry-Perot etalon and light is transmittable along an optical path through the elements and the etalon. The one or more expansion elements are connected to the optical elements, located outside the optical path and extend parallel to the axis with a length greater than the width of the gap. The expansion elements comprise a material having a linear thermal coefficient of expansion different to that of the optical elements such that a difference in expansion of the expansion elements and the optical elements causes relative movement of the flat surfaces along the axis resulting in a change in the width of the gap.

公开(公告)号：US11049893B2

公开(公告)日：2021-06-29

申请号：US16228170

申请日：2018-12-20

Applicant: VIAVI Solutions Inc.

Inventor： Georg J. Ockenfuss

IPC: H01L27/146 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G02B5/20 ,  G02B5/28 ,  H01L31/0216 ,  G01J5/08 ,  G01J1/04 ,  G01J5/02 ,  G02B5/26 ,  G01J3/12

Abstract: A device may include a filter array disposed on a substrate. The filter array may include a first mirror disposed on the substrate. The filter array may include a plurality of spacers disposed on the first mirror. A first spacer, of the plurality of spacers, may be associated with a first thickness. A second spacer, of the plurality of spacers, may be associated with a second thickness that is different from the first thickness. A first channel corresponding to the first spacer and a second channel corresponding to the second spacer may be associated with a separation width of less than approximately 10 micrometers (μm). The filter array may include a second mirror disposed on the plurality of spacers.

公开(公告)号：US20210190592A1

公开(公告)日：2021-06-24

申请号：US17134878

申请日：2020-12-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TOYA

IPC: G01J3/52 ,  G01J3/46 ,  G01J3/26 ,  G01J3/28

Abstract: Provided is a measurement device including a spectroscope, a movement mechanism configured to relatively move the spectroscope along a first direction with respect to the measurement target, and one or more processors configured to execute detecting a measurement error indicating that spectroscopic measurement processing by the spectroscope is not executed normally, and controlling the spectroscope and the movement mechanism, in which the one or more processors, when the measurement target is a plurality of color patches arranged along the first direction, cause the spectroscope to execute first measurement processing of measuring light with a specific wavelength set in advance while relatively moving the spectroscope in the first direction to acquire a measured value with respect to the specific wavelength obtained by the first measurement processing and a position of the spectroscope, and when the measurement error is detected, move the spectroscope to a position where an amount of variation of the measured value is greater than or equal to a threshold value in a second direction opposite to the first direction and then move the spectroscope in the first direction.

公开(公告)号：US20210190588A1

公开(公告)日：2021-06-24

申请号：US16989741

申请日：2020-08-10

Applicant: University of Hawaii

Inventor： Paul Lucey

IPC: G01J3/26 ,  G01J3/453 ,  G01J3/14

Abstract: A spatial Fourier transform spectrometer is disclosed. The Fourier transform spectrometer includes a Fabry-Perot interferometer with first and second optical surfaces. The gap between the first and second optical surfaces spatially varies in a direction that is orthogonal to the optical axis of the Fourier transform spectrometer. The Fabry-Perot interferometer creates an interference pattern from input light. An image of the interference pattern is captured by a detector, which is communicatively coupled to a processor. The processor is configured to process the interference pattern image to determine information about the spectral content of the input light.

公开(公告)号：US20210181018A1

公开(公告)日：2021-06-17

申请号：US16077189

申请日：2017-02-13

Applicant: THE GENERAL HOSPITAL CORPORATION

Inventor： Seok-Hyun Yun ,  Peng Shao

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/26 ,  G01J3/44

Abstract: A system for performing spectroscopy on a target is provided. In some aspects, the system includes an optical assembly that includes an optical source configured to generate light at one or more frequencies to be directed to a target. The optical assembly also includes at least one optical filter configured to select desired light signals coming from the target, wherein the at least one optical filter comprises an etalon and at least one reflecting surface external to the etalon, the at least one reflecting surface being configured to redirect to the etalon, at least once, an incident beam reflected from the etalon.

公开(公告)号：US20210131870A1

公开(公告)日：2021-05-06

申请号：US17126297

申请日：2020-12-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi KASAHARA ,  Katsumi SHIBAYAMA ,  Masaki HIROSE ,  Toshimitsu KAWAI ,  Hiroki OYAMA ,  Yumi KURAMOTO

IPC: G01J3/26 ,  B23K26/53 ,  B23K26/00 ,  B23K26/064 ,  B81B3/00 ,  B81C1/00 ,  G01J3/02 ,  G02B5/28 ,  G02B26/00 ,  B23K26/06

Abstract: A method of manufacturing a Fabry-Perot interference filter includes a forming step of forming a first thinned region, a first mirror layer, a sacrificial layer, and a second mirror layer are formed on a first main surface of a wafer, and the first thinned region in which at least one of the first mirror layer, the sacrificial layer, and the second mirror layer is partially thinned along each of a plurality of lines is formed; a cutting step of cutting the wafer into a plurality of substrates along each of the plurality of lines by forming a modified region within the wafer along each of the plurality of lines through irradiation of a laser light, after the forming step; and a removing step of removing a portion from the sacrificial layer through etching, between the forming step and the cutting step or after the cutting step.

公开(公告)号：US20210111209A1

公开(公告)日：2021-04-15

申请号：US17247589

申请日：2020-12-17

Applicant: VIAVI Solutions Inc.

Inventor： Georg J. OCKENFUSS

IPC: H01L27/146 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G02B5/20 ,  G02B5/28 ,  H01L31/0216 ,  G01J5/08 ,  G01J1/04 ,  G01J5/02 ,  G02B5/26

Abstract: A device may include a filter array disposed on a substrate. The filter array may include a first mirror disposed on the substrate. The filter array may include a plurality of spacers disposed on the first mirror. A first spacer, of the plurality of spacers, may be associated with a first thickness. A second spacer, of the plurality of spacers, may be associated with a second thickness that is different from the first thickness. A first channel corresponding to the first spacer and a second channel corresponding to the second spacer may be associated with a separation width of less than approximately 10 micrometers (μm). The filter array may include a second mirror disposed on the plurality of spacers.