公开(公告)号：US10247609B2

公开(公告)日：2019-04-02

申请号：US15076961

申请日：2016-03-22

Applicant: Seiko Epson Corporation

Inventor： Masashi Kanai ,  Naoki Kuwata

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/10 ,  G01J3/50 ,  H05B37/02 ,  G01J1/42 ,  G01J3/26 ,  G01J3/52 ,  H04N1/60

Abstract: A spectrometry device includes a spectroscope, an extraneous light sensor, and a light intensity controller. The spectroscope includes a light source that emits illumination light to a medium and a wavelength-selective interference filter that performs spectroscopy on light incident from the medium. The extraneous light sensor detects the intensity of extraneous light which is incident on the medium. The light intensity controller controls the intensity of the illumination light emitted from the light source such that the light intensity ratio of the illumination light and the extraneous light is equal to a first value.

公开(公告)号：US10240981B2

公开(公告)日：2019-03-26

申请号：US15367715

申请日：2016-12-02

Applicant: Matthew F. Ross ,  Scott A. Chalmers ,  Randall S. Geels

Inventor： Matthew F. Ross ,  Scott A. Chalmers ,  Randall S. Geels

IPC: G01N21/25 ,  G01J3/26 ,  G01J3/10 ,  G01B11/06 ,  G01B11/24 ,  G01N21/45 ,  G01N21/84 ,  G01J3/12 ,  G01J3/28

Abstract: A system comprising a light source configured to illuminate a sample under measurement. The system includes a detector configured to receive reflected light from the sample, and the detector generates a signal representing the reflected light. A spatially variable filter (SVF) is positioned in the optical path. The SVF is configured to have spectral properties that vary as a function of illuminated position on the SVF.

公开(公告)号：US20190072431A1

公开(公告)日：2019-03-07

申请号：US16082616

申请日：2017-03-03

Applicant: HAMAMATSU PHOTONICS K.K.

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

IPC: G01J3/26 ,  G01J1/04 ,  G01J3/45 ,  G02F1/21 ,  G01J3/02 ,  G02B26/00

Abstract: A light detection device includes a Fabry-Perot interference filter provided with a light transmitting region on a predetermined line, a light detector disposed on one side with respect to the Fabry-Perot interference filter on the line, a package having an opening positioned on the other side with respect to the Fabry-Perot interference filter on the line, a light transmitting member provided in the package such that the opening is blocked, and a temperature control element having an endothermic region thermally connected to the Fabry-Perot interference filter and the light detector. The endothermic region is positioned on one side with respect to the light detector on the line.

公开(公告)号：US10222325B2

公开(公告)日：2019-03-05

申请号：US15613315

申请日：2017-06-05

Applicant: Viavi Solutions Inc.

Inventor： Curtis R. Hruska ,  Charles A. Hulse ,  Brett J. Bryars ,  Marc K. Von Gunten ,  Christopher G. Pederson ,  Nada A. O'Brien ,  Jerry Zieba ,  Benjamin F. Catching

IPC: G01N21/35 ,  G01N21/359 ,  G01J3/02 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J5/08 ,  G01J3/12

Abstract: A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.

公开(公告)号：US20190041265A1

公开(公告)日：2019-02-07

申请号：US16057276

申请日：2018-08-07

Applicant: VERIFOOD, Ltd.

Inventor： Sagee ROSEN ,  Uri KINROT

IPC: G01J3/02 ,  G01J3/36 ,  G01J3/26 ,  G01J3/28

Abstract: An improved compact spectrometer system comprising an improved spatially variable filter is disclosed herein. A spatially variable filter may be configured to have a plurality of different transmission profiles at different locations of the filter, to spectrally separate light incident on the filter. The spatially variable filter may comprise a plurality of different filter regions having different transmission profiles, and a plurality of similar filter regions comprising similar transmission profiles. The spatially variable filter may be optically coupled to a detector comprising a plurality of detector elements configured to measure the intensity of light. The measurement data generated by the plurality of detector elements coupled to the plurality of similar filter regions can be used to determine a spatial variation on incident light intensity.

公开(公告)号：US20190033132A1

公开(公告)日：2019-01-31

申请号：US16151103

申请日：2018-10-03

Applicant: VERIFOOD, LTD.

Inventor： Damian GOLDRING ,  Dror SHARON ,  Guy BRODETZKI ,  Amit RUF ,  Menahem KAPLAN ,  Sagee ROSEN ,  Omer KEILAF ,  Uri KINROT ,  Kai ENGELHARDT ,  Ittai NIR

IPC: G01J3/10 ,  G01N33/02 ,  G01J3/02 ,  G01N21/25 ,  G01J5/10 ,  G01J5/02 ,  G01J3/45 ,  G01J3/36 ,  G01J3/28 ,  G01J3/26 ,  G01J3/12

Abstract: A spectrometer comprises a plurality of isolated optical channels comprising a plurality of isolated optical paths. The isolated optical paths decrease cross-talk among the optical paths and allow the spectrometer to have a decreased length with increased resolution. In many embodiments, the isolated optical paths comprise isolated parallel optical paths that allow the length of the device to be decreased substantially. In many embodiments, each isolated optical path extends from a filter of a filter array, through a lens of a lens array, through a channel of a support array, to a region of a sensor array. Each region of the sensor array comprises a plurality of sensor elements in which a location of the sensor element corresponds to the wavelength of light received based on an angle of light received at the location, the focal length of the lens and the central wavelength of the filter.

公开(公告)号：US10184832B2

公开(公告)日：2019-01-22

申请号：US15031786

申请日：2014-10-31

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Katsumi Shibayama ,  Takashi Kasahara ,  Masaki Hirose ,  Toshimitsu Kawai

IPC: G01J3/26 ,  G01J3/02 ,  G01J3/45

Abstract: A spectral sensor includes a Fabry-Perot interference filter which is provided with an opening to pass light transmitted according to a distance between a first mirror and a second mirror along a facing direction; a light detector which has a light reception unit to receive the light having passed through the opening; a wiring substrate on which the light detector is mounted; and a plurality of spacers which support the filter on the wiring substrate, such that a second space continuous with a first space in the opening and including the first space when viewed from the facing direction is formed between the filter and the wiring substrate. The light detector is disposed in the second space. The light reception unit is disposed in a region corresponding to the first space in the second space, when viewed from the facing direction.

公开(公告)号：US10175107B2

公开(公告)日：2019-01-08

申请号：US15031780

申请日：2014-10-31

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Katsumi Shibayama ,  Takashi Kasahara ,  Masaki Hirose ,  Toshimitsu Kawai

IPC: G01J3/45 ,  G01J3/26 ,  G01J3/02 ,  G01J5/04 ,  G01J5/20 ,  G02B26/00

Abstract: A spectral sensor 1A includes a Fabry-Perot interference filter 10 which has a light transmission region 11; a light detector 3 which detects light having transmitted the light transmission region 11; spacers 4A and 4B which support the Fabry-Perot interference filter 10 in a surrounding region of the light transmission region 11; and a die bond resin 5 which adheres the Fabry-Perot interference filter 10 and the spacers 4A and 4B to each other. The die bond resin 5 has one opening A2 communicating with an inner side of the surrounding region and an outer side of the surrounding region, when viewed from a light transmission direction in the light transmission region 11.

公开(公告)号：US20180373021A1

公开(公告)日：2018-12-27

申请号：US16065856

申请日：2017-05-01

Applicant: HAMAMATSU PHOTONICS K.K.

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

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

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：US20180321144A1

公开(公告)日：2018-11-08

申请号：US16037841

申请日：2018-07-17

Applicant: Block Engineering, LLC

Inventor： Petros Kotidis ,  Erik Deutsch ,  Ninghui Zhu ,  Dan Cavicchio

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

CPC classification number: G01N21/39 ,  B82Y20/00 ,  G01J3/108 ,  G01J3/26 ,  G01J3/4338 ,  G01J3/45 ,  G01N21/272 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/3577 ,  G01N2021/1793 ,  G01N2021/399 ,  G01N2201/0221 ,  G01N2201/0612 ,  G01N2201/068 ,  G01N2201/08 ,  G02B21/0028 ,  G02B21/008 ,  G02B21/06 ,  H01S5/0071 ,  H01S5/141 ,  H01S5/3401 ,  H01S5/3402 ,  H01S5/4012 ,  H01S5/4031

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.