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    VARIABLE OPTICAL FILTER AND A WAVELENGTH-SELECTIVE SENSOR BASED THEREON
    1.
    发明申请
    VARIABLE OPTICAL FILTER AND A WAVELENGTH-SELECTIVE SENSOR BASED THEREON 有权

    公开(公告)号：US20210028213A1

    公开(公告)日：2021-01-28

    申请号：US16947898

    申请日：2020-08-24

    Applicant: VIAVI Solutions Inc.

    Inventor： Karen Denise HENDRIX ,  Charles A. HULSE ,  Richard A. BRADLEY ,  Jeffrey James KUNA

    IPC: H01L27/146 ,  G02B5/28 ,  G01J3/26 ,  G01J3/02

    Abstract: 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.

    PORTABLE SPECTROMETER
    2.
    发明申请
    PORTABLE SPECTROMETER 有权
    便携式光谱仪

    公开(公告)号：US20160116399A1

    公开(公告)日：2016-04-28

    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

    IPC: G01N21/35

    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.

    Abstract translation: 便携式光谱仪装置包括用于引导样品的照明源和用于以第一焦距比捕获与样品相互作用的光的锥形光管（TLP），并且以比第一焦距比低的第二焦距传送光 。 线性可变滤波器（LVF）分离捕获的。 光成波长信号的频谱; 以及包括多个像素的检测器阵列，所述多个像素中的每一个被设置为接收多个所述组成波长信号的至少一部分，为每个构成波长提供功率读数。 优选地，TLP在一端镜片，并且凹陷在具有阶梯状内壁的保护靴中。 TLP和LVF之间的差距被最小化以进一步提高分辨率和鲁棒性。

    VARIABLE OPTICAL FILTER AND A WAVELENGTH-SELECTIVE SENSOR BASED THEREON
    6.
    发明申请
    VARIABLE OPTICAL FILTER AND A WAVELENGTH-SELECTIVE SENSOR BASED THEREON 审中-公开
    可变光学滤波器和基于波长选择的传感器

    公开(公告)号：US20170047366A1

    公开(公告)日：2017-02-16

    申请号：US15337489

    申请日：2016-10-28

    Applicant: Viavi Solutions Inc.

    Inventor： Karen Denise HENDRIX ,  Charles A. HULSE ,  Richard A. BRADLEY ,  Jeffrey James KUNA

    IPC: H01L27/146 ,  G02B5/28

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

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