公开(公告)号：US20200340857A1

公开(公告)日：2020-10-29

申请号：US16924759

申请日：2020-07-09

Applicant: VIAVI Solutions Inc.

Inventor： Paula SMITH ,  Curtis R. HRUSKA ,  Benjamin F. CATCHING ,  Paul G. COOMBS

IPC: G01J3/02 ,  G01J3/12 ,  G01N21/25 ,  G01N21/85 ,  G01J3/26 ,  G02B5/28 ,  G02B5/20 ,  G01J3/28 ,  G02B5/22 ,  G02B5/30 ,  G02B6/42

Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.

公开(公告)号：US20180231472A1

公开(公告)日：2018-08-16

申请号：US15951686

申请日：2018-04-12

Applicant: VIAVI Solutions Inc.

Inventor： Benjamin F. CATCHING ,  Marc K. VON GUNTEN ,  Curtis R. HRUSKA ,  Paula SMITH ,  Paul G. COOMBS

IPC: G01N21/85 ,  G01J3/02 ,  G01J3/12 ,  G01N21/27

CPC classification number: G01N21/85 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/12 ,  G01J2003/123 ,  G01J2003/1234 ,  G01N21/27 ,  G01N21/8507 ,  G01N2201/061 ,  G01N2201/062 ,  G01N2201/068

Abstract: Increasing the precision of process monitoring may be improved if the sensors take the form of travelling probes riding along with the flowing materials in the manufacturing process rather than sample only when the process moves passed the sensors fixed location. The probe includes an outer housing hermetically sealed from the flowing materials, and a light source for transmitting light through a window in the housing onto the flowing materials. A spatially variable optical filter (SVF) captures light returning from the flowing materials, and separates the captured light into a spectrum of constituent wavelength signals for transmission to a detector array, which provides a power reading for each constituent wavelength signal.

公开(公告)号：US20180156723A1

公开(公告)日：2018-06-07

申请号：US15887196

申请日：2018-02-02

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA ,  Benjamin F. Catching ,  Marc K. Von Gunten

IPC: G01N21/359 ,  G01J3/10 ,  G01J3/02

Abstract: A lightpipe is coupled to a spectrometer based on a laterally variable optical filter. The lightpipe may be used for both guiding the illuminating light towards a sample and collecting light reflected or emitted by the sample upon illumination, for spectral measurements at a distance from the sample afforded by the lightpipe. The lightpipe may include a slab of homogeneous transparent material for unconstrained bidirectional propagation of light in bulk of the material. The lightpipe may be solid, hollow, or sectioned for separated guiding of the illuminating and the reflected light.

公开(公告)号：US20170336319A1

公开(公告)日：2017-11-23

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

CPC classification number: G01N21/35 ,  G01J3/0205 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J5/08 ,  G01J2003/1234 ,  G01N21/359 ,  G01N2201/0221 ,  G01N2201/061 ,  G01N2201/068

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：US20230288255A1

公开(公告)日：2023-09-14

申请号：US18320295

申请日：2023-05-19

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA

IPC: G01J3/02 ,  G01J3/42 ,  G01N21/27

CPC classification number: G01J3/0297 ,  G01J3/027 ,  G01J3/42 ,  G01N21/274 ,  G01J3/0205 ,  G01J3/10

Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.

公开(公告)号：US20220003600A1

公开(公告)日：2022-01-06

申请号：US17447951

申请日：2021-09-17

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA

IPC: G01J3/02 ,  G01J3/42 ,  G01N21/27

Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.

公开(公告)号：US20210404951A1

公开(公告)日：2021-12-30

申请号：US17447724

申请日：2021-09-15

Applicant: VIAVI Solutions Inc.

Inventor： Valton SMITH ,  William D. HOUCK ,  Curtis R. HRUSKA ,  Marc K. VON GUNTEN

IPC: G01N21/31

Abstract: A sensor device may determine a first optical sensor value associated with a first displacement and a second optical sensor value associated with a second displacement, wherein the first displacement is between an emitter associated with the first optical sensor value and a sensing location used to determine the first optical sensor value, wherein the second displacement is between an emitter associated with the second optical sensor value and a sensing location used to determine the second optical sensor value, and wherein the first displacement is different from the second displacement. The sensor device may determine one or more measurements using the first optical sensor value and the second optical sensor value, wherein the one or more measurements relate to a first penetration depth associated with the first optical sensor value, and a second penetration depth associated with the second optical sensor value.

公开(公告)号：US20210033460A1

公开(公告)日：2021-02-04

申请号：US16831308

申请日：2020-03-26

Applicant: VIAVI Solutions Inc.

Inventor： Valton SMITH ,  William D. HOUCK ,  Curtis R. HRUSKA ,  Marc K. VON GUNTEN

IPC: G01J3/427 ,  G01J3/02 ,  G01J3/10

Abstract: A sensor device may determine a first optical sensor value associated with a first displacement and a second optical sensor value associated with a second displacement, wherein the first displacement is between an emitter associated with the first optical sensor value and a sensing location used to determine the first optical sensor value, wherein the second displacement is between an emitter associated with the second optical sensor value and a sensing location used to determine the second optical sensor value, and wherein the first displacement is different from the second displacement. The sensor device may determine one or more measurements using the first optical sensor value and the second optical sensor value, wherein the one or more measurements relate to a first penetration depth associated with the first optical sensor value, and a second penetration depth associated with the second optical sensor value.

公开(公告)号：US20200284655A1

公开(公告)日：2020-09-10

申请号：US16879856

申请日：2020-05-21

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA

IPC: G01J3/02 ,  G01J3/42 ,  G01N21/27

Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.

公开(公告)号：US20240418642A1

公开(公告)日：2024-12-19

申请号：US18815912

申请日：2024-08-27

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA ,  William D. HOUCK ,  Valton SMITH ,  Marc K. VON GUNTEN ,  Chuck DEMILO

IPC: G01N21/359 ,  G02B19/00

Abstract: An optical sensor system may include a light source. The optical sensor system may include a concentrator component proximate to the light source and configured to concentrate light from the light source with respect to a measurement target. The optical sensor system may include a collection component that includes an array of at least two components configured to receive light reflected or transmitted from the measurement target. The optical sensor system may include may a sensor. The optical sensor system may include a filter provided between the collection component and the sensor.