公开(公告)号：US10401284B2

公开(公告)日：2019-09-03

申请号：US15131654

申请日：2016-04-18

申请人： Viavi Solutions, Inc.

发明人： Nada A. O'Brien ,  Charles A. Hulse ,  Heinz W. Siesler ,  Changmeng Hsiung

IPC分类号： G01J3/02 ,  G01N21/359 ,  G01J3/26 ,  G01J3/28 ,  G01N33/12 ,  G01N21/3563 ,  G01N21/27 ,  G01N21/55 ,  G01J3/12

摘要： 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.

公开(公告)号：US09671330B2

公开(公告)日：2017-06-06

申请号：US14980914

申请日：2015-12-28

申请人： Viavi Solutions Inc.

发明人： 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分类号： G01J3/42 ,  G01N21/35 ,  G01N21/359 ,  G01J3/02 ,  G01J3/10 ,  G01J5/08 ,  G01J3/12

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

摘要： 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：US20160172416A1

公开(公告)日：2016-06-16

申请号：US15017583

申请日：2016-02-05

申请人： VIAVI SOLUTIONS INC.

发明人： Karen Denise Hendrix ,  Charles A. Hulse ,  Richard A. Bradley ,  Jeffrey James Kuna

IPC分类号： H01L27/146 ,  G02B5/28

CPC分类号： H01L27/14621 ,  G01J3/0259 ,  G01J3/26 ,  G01J2003/1226 ,  G01J2003/1234 ,  G01J2003/1239 ,  G02B5/281 ,  G02B5/288 ,  H01L27/14623 ,  H01L27/1463 ,  H01L27/14634 ,  H01L27/14643 ,  H01L27/14685

摘要： A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.

摘要翻译： 公开了一种可变滤波器，其包括带通滤波器和阻塞滤波器。 带通滤波器包括交替的第一和第二层的堆叠，并且阻挡滤波器包括交替的第三和第四层的堆叠。 第一，第二和第四材料各自包括不同的材料，使得第一材料的折射率小于第二材料的折射率，其小于第四材料的折射率; 而第二材料的吸收系数小于第四材料的吸收系数。 可以选择材料以确保阻挡滤波器中的高折射率对比度和带通滤波器中的低光损耗。 第一至第四层可以直接沉积在光电检测器阵列上。