公开(公告)号：US20190003885A1

公开(公告)日：2019-01-03

申请号：US16100867

申请日：2018-08-10

Applicant: VIAVI Solutions Inc.

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

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

Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters slacked at a fixed distance from each other, so that the upstream filter functions as a spatial filler 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：US20170038255A1

公开(公告)日：2017-02-09

申请号：US14818986

申请日：2015-08-05

Applicant: Viavi Solutions Inc.

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

IPC: G01J3/02 ,  G02B6/42 ,  G02B5/30 ,  G01J3/28 ,  G02B5/22

CPC classification number: G01J3/0229 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0262 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1213 ,  G01J2003/1217 ,  G01J2003/123 ,  G01J2003/1234 ,  G01J2003/1239 ,  G01J2003/1291 ,  G01J2003/2806 ,  G01J2003/2813 ,  G01N21/255 ,  G01N21/8507 ,  G02B5/22 ,  G02B5/3025 ,  G02B6/4215

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.

Abstract translation: 公开了一种光学组件，其包括彼此以固定距离堆叠的两个横向可变带通光学滤光器，使得上游滤波器用作下游滤波器的空间滤波器。 当倾斜光束的入射位置在上游和下游滤波器上的传输通带不重叠时，横向位移可能导致倾斜光束的抑制。 光电检测器阵列可以设置在下游滤波器的下游。 光学组件可以经由各种光学导管或光纤耦合，用于流动样品的光谱测量。

公开(公告)号：US20250052610A1

公开(公告)日：2025-02-13

申请号：US18929726

申请日：2024-10-29

Applicant: VIAVI Solutions Inc.

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

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01N21/25 ,  G01N21/85 ,  G02B5/20 ,  G02B5/22 ,  G02B5/28 ,  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：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：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：US20240103267A1

公开(公告)日：2024-03-28

申请号：US18463075

申请日：2023-09-07

Applicant: VIAVI Solutions Inc.

Inventor： Benjamin F. CATCHING

IPC: G02B27/00 ,  G02B5/28

CPC classification number: G02B27/0025 ,  G02B5/28

Abstract: An optical assembly includes a housing, and an optical filter and an optical compensator disposed within the housing. The optical filter is oriented at a first non-zero angle in a first tilt direction with respect to an optical axis of the optical assembly. The optical compensator is oriented at a second non-zero angle in a second tilt direction with respect to the normal of the optical axis of the optical assembly. The optical filter is configured to pass, to the optical compensator, a portion of an optical beam that impinges on the optical filter along an optical axis of the optical assembly, such that the portion of the optical beam is offset from the optical axis. The optical compensator is configured to cause the portion of the optical beam to propagate out of the optical assembly along the optical axis of the optical assembly (or with a minimized offset).

公开(公告)号：US20220412880A1

公开(公告)日：2022-12-29

申请号：US17929113

申请日：2022-09-01

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA ,  Peng ZOU ,  Benjamin F. CATCHING ,  Marc K. VON GUNTEN ,  Valton SMITH

IPC: G01N21/25 ,  G01J3/02 ,  G01N21/03 ,  G02B27/09 ,  G01J3/06 ,  G01J3/42

Abstract: A spectroscopic assembly may include a spectrometer. The spectrometer may include an illumination source to generate a light to illuminate a sample. The spectrometer may include a sensor to obtain a spectroscopic measurement based on light, reflected by the sample, from the light illuminating the sample. The spectroscopic assembly may include a light pipe to transfer the light reflected from the sample. The light pipe may include a first opening to receive the spectrometer. The light pipe may include a second opening to receive the sample, such that the sample is enclosed by the light pipe and a base surface when the sample is received at the second opening. The light pipe may be associated with aligning the illumination source and the sensor with the sample.

公开(公告)号：US20210002756A1

公开(公告)日：2021-01-07

申请号：US16459433

申请日：2019-07-01

Applicant: VIAVI Solutions Inc.

Inventor： Markus K. TILSCH ,  Benjamin F. CATCHING

IPC: C23C14/54

Abstract: A coating system may include a coating chamber; a substrate holder to move a substrate along a motion path; and a sensor device in the coating chamber, wherein the sensor device is configured to move along the motion path, and wherein the sensor device is to perform a spectral measurement on the substrate.

公开(公告)号：US20170219430A1

公开(公告)日：2017-08-03

申请号：US15488948

申请日：2017-04-17

Applicant: Viavi Solutions, Inc.

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

IPC: G01J3/02 ,  G02B5/28 ,  G01J3/26 ,  G01J3/12 ,  G01J3/28

CPC classification number: G01J3/0229 ,  G01J3/0208 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1213 ,  G01J2003/1221 ,  G01J2003/1234 ,  G01J2003/2813 ,  G02B5/285

Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes 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.