公开(公告)号：US12281978B2

公开(公告)日：2025-04-22

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 ,  G01J3/06 ,  G01J3/42 ,  G01N21/01 ,  G01N21/03 ,  G01N21/05 ,  G01N21/63 ,  G01N21/85 ,  G02B6/10 ,  G02B27/09

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：US11442004B2

公开(公告)日：2022-09-13

申请号：US16946309

申请日：2020-06-16

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：US11237049B2

公开(公告)日：2022-02-01

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：US20200309680A1

公开(公告)日：2020-10-01

申请号：US16946309

申请日：2020-06-16

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：US10753793B2

公开(公告)日：2020-08-25

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 ,  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：US10718663B2

公开(公告)日：2020-07-21

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 ,  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：US10048127B2

公开(公告)日：2018-08-14

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

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：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：US09885655B2

公开(公告)日：2018-02-06

申请号：US14710095

申请日：2015-05-12

Applicant: Viavi Solutions Inc.

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

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

CPC classification number: G01N21/359 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/10 ,  G01N2201/0221 ,  G01N2201/08

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 separate guiding of the illuminating and the reflected light.

公开(公告)号：US09671330B2

公开(公告)日：2017-06-06

申请号：US14980914

申请日：2015-12-28

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: G01J3/42 ,  G01N21/35 ,  G01N21/359 ,  G01J3/02 ,  G01J3/10 ,  G01J5/08 ,  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.