公开(公告)号：US20200025739A1

公开(公告)日：2020-01-23

申请号：US16587260

申请日：2019-09-30

Applicant: VIAVI Solutions Inc.

Inventor： Nada A. O'BRIEN ,  Changmeng HSIUNG

IPC: G01N33/12 ,  G06K9/68 ,  G06K9/62 ,  G01N21/27

Abstract: A device may receive a classification model generated based on a set of spectroscopic measurements performed by a first spectrometer. The device may store the classification model in a data structure. The device may receive a spectroscopic measurement of an unknown sample from a second spectrometer. The device may obtain the classification model from the data structure. The device may classify the unknown sample into a Kosher or non-Kosher group or a Halal or non-Halal group based on the spectroscopic measurement and the classification model. The device may provide information identifying the unknown sample based on the classifying of the unknown sample.

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：US20160231237A1

公开(公告)日：2016-08-11

申请号：US15131654

申请日：2016-04-18

Applicant: Viavi Solutions, Inc.

Inventor： Nada A. O'BRIEN ,  Charles A. HULSE ,  Heinz W. SIESLER ,  Changmeng Hsiung

IPC: G01N21/359 ,  G01N33/12

CPC classification number: G01N21/359 ,  G01J3/0216 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1234 ,  G01J2003/2873 ,  G01N21/27 ,  G01N21/3563 ,  G01N21/55 ,  G01N33/12 ,  G01N2201/0221 ,  G01N2201/061 ,  G01N2201/12

Abstract: A method and apparatus for field spectroscopic characterization of seafood is disclosed. A portable NIR spectrometer is connected to an analyzer configured for performing a multivariate analysis of reflection spectra to determine qualitatively the true identities or quantitatively the freshness of seafood samples.