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    Optical filter for an optical sensor device
    1.
    发明授权
    Optical filter for an optical sensor device 有权

    公开(公告)号：US12085444B2

    公开(公告)日：2024-09-10

    申请号：US18342783

    申请日：2023-06-28

    Applicant: VIAVI Solutions Inc.

    Inventor： William D. Houck

    IPC: G01J3/02 ,  G01J3/12 ,  G01N21/25 ,  H01L27/146

    CPC classification number: G01J3/0229 ,  G01J3/0208 ,  G01J3/12 ,  G01N21/255 ,  G01J2003/1226 ,  H01L27/14625

    Abstract: An optical system includes an optical element and an optical filter with a first set of channels and a second set of channels respectively associated with a first region and a second region of the optical filter. The optical element causes first light beams and second light beams associated with a subject to respectively fall incident on the first region within a first incidence angle range and on the second region within a second incidence angle range. A first channel, of the first set of channels, passes, based on the first incidence angle range, a set of the first light beams that are associated with a first subrange of a particular wavelength range. A second channel, of the second set of channels, passes, based on the second incidence angle range, a set of the second light beams that are associated with a second subrange of the particular wavelength range.

    Optical filter, spectrometric module, and spectral measurement method
    2.
    发明授权
    Optical filter, spectrometric module, and spectral measurement method 有权

    公开(公告)号：US12038325B2

    公开(公告)日：2024-07-16

    申请号：US17482512

    申请日：2021-09-23

    Applicant: Seiko Epson Corporation

    Inventor： Kei Kudo

    IPC: G01J3/28 ,  G01J3/02 ,  G01J3/06 ,  G01J3/12

    CPC classification number: G01J3/2823 ,  G01J3/0205 ,  G01J3/06 ,  G01J2003/1226

    Abstract: An optical filter includes a variable wavelength interference filter including a pair of reflection films and having a plurality of transmission peak wavelengths according to the dimension of the gap between the pair of reflection films and a fixed wavelength filter disposed so as to face the variable wavelength interference filter and having a plurality of filter regions different from one another in transmission wavelength segment. The plurality of transmission peak wavelengths of the variable wavelength interference filter correspond to the transmission wavelength segments of the plurality of filter regions, respectively. The plurality of transmission peak wavelengths of the variable wavelength interference filter each change within the corresponding transmission wavelength segment of the plurality of filter regions in accordance with a change in the gap dimension.

    OPTICAL PACKAGE
    6.
    发明申请
    OPTICAL PACKAGE 审中-公开

    公开(公告)号：US20180087962A1

    公开(公告)日：2018-03-29

    申请号：US15391413

    申请日：2016-12-27

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Chia-Jung CHANG ,  Yu-Sheng HSIEH ,  Jing-Yuan LIN ,  Chih-Hao HSU

    IPC: G01J3/12 ,  G01J3/02

    CPC classification number: G01J3/12 ,  G01J1/06 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1226

    Abstract: An optical package is provided. The optical package includes an interference splitter allowing a light having a predetermined wavelength range to transmit through, a sensing element, and a light-transmitting structure. The light-transmitting structure includes a light-transmitting pillar and a light-absorbing layer surrounding the light-transmitting pillar, and the light-absorbing layer absorbs the light having the predetermined wavelength range. The interference splitter, the light-transmitting pillar, and the sensing element are arranged aligned with each other along an extending direction of the light-transmitting pillar. The sensing element is configured to receive the light transmitting through the interference splitter and the light-transmitting pillar.

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