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    ABSORPTION TYPE NEAR INFRARED FILTER
    11.
    发明申请
    ABSORPTION TYPE NEAR INFRARED FILTER 审中-公开

    公开(公告)号：US20190187348A1

    公开(公告)日：2019-06-20

    申请号：US16224728

    申请日：2018-12-18

    Applicant: PTOT (SUZHOU) INC. ,  PLATINUM OPTICS TECHNOLOGY INC.

    Inventor： Chung-Han LU ,  Hsiao-Ching SHEN ,  Chun-Cheng HSIEH ,  Ming-Zhan WANG

    IPC: G02B5/28 ,  G02B5/20 ,  G01N21/359

    CPC classification number: G02B5/282 ,  G01N21/359 ,  G02B5/208

    Abstract: An absorption type near-infrared filter comprising a first multilayer film, a second multilayer film, and an absorption film comprising an infrared absorbing dye with a weight percentage between 1% and 3%, wherein in the infrared band, the difference between the wavelength with the transmittance at 80% of the absorption film and the wavelength with the reflectivity at 80% of the first multilayer film ranges between 130 nm and 145 nm; the difference between the wavelength with the transmittance at 50% of the absorption film and the wavelength with the reflectivity at 50% of the first multilayer film ranges between 75 nm and 90 nm; the difference between the wavelength with the transmittance at 20% of the absorption film and the wavelength with the reflectivity at 20% of the first multilayer film ranges between 25 nm and 45 nm.

    Near-infrared absorbing filter and image sensor
    12.
    发明授权
    Near-infrared absorbing filter and image sensor 有权

    公开(公告)号：US10184827B2

    公开(公告)日：2019-01-22

    申请号：US15299113

    申请日：2016-10-20

    Applicant: Platinum Optics Technology Inc.

    Inventor： Hsin-Miau Peng ,  Chung-Han Lu ,  Liang-Yu Yen

    IPC: G01J3/50 ,  G01J1/04 ,  G02B5/20 ,  G02B5/22 ,  G01J3/12

    Abstract: The present disclosure provides a near-infrared absorbing filter, including an absorbing type infrared filtering medium having opposite first and second surfaces; an organic coating layer formed on the first surface of the absorbing type filtering medium for absorbing infrared rays; a first multi-layered film structure formed on the organic coating layer with the organic coating layer disposed between the first multi-layered film structure and the absorbing type infrared filtering medium; and a second multi-layered film structure formed on the second surface of the absorbing type infrared filtering medium. The near-infrared filter of the present disclosure is able to reduce the wavelength difference of T50 and T20 of the incident light within the range of from 0 to 30 degrees to less than 5 nm, thereby reducing chromatic aberration effectively and reducing ghost images of infrared reflections. The disclosure further provides an image sensor including the near-infrared absorbing filter.

    NEAR-INFRARED ABSORBING FILTER AND IMAGE SENSOR
    13.
    发明申请
    NEAR-INFRARED ABSORBING FILTER AND IMAGE SENSOR 审中-公开

    公开(公告)号：US20170322076A1

    公开(公告)日：2017-11-09

    申请号：US15299113

    申请日：2016-10-20

    Applicant: Platinum Optics Technology Inc.

    Inventor： Hsin-Miau PENG ,  Chung-Han LU ,  Liang-Yu YEN

    IPC: G01J1/04 ,  G02B5/20 ,  G02B5/22

    CPC classification number: G01J1/0488 ,  G01J2003/1226 ,  G02B5/208 ,  G02B5/223 ,  G02B5/226

    Abstract: The present disclosure provides a near-infrared absorbing filter, including an absorbing type infrared filtering medium having opposite first and second surfaces; an organic coating layer formed on the first surface of the absorbing type filtering medium for absorbing infrared rays; a first multi-layered film structure formed on the organic coating layer with the organic coating layer disposed between the first multi-layered film structure and the absorbing type infrared filtering medium; and a second multi-layered film structure formed on the second surface of the absorbing type infrared filtering medium. The near-infrared filter of the present disclosure is able to reduce the wavelength difference of T50 and T20 of the incident light within the range of from 0 to 30 degrees to less than 5 nm, thereby reducing chromatic aberration effectively and reducing ghost images of infrared reflections. The disclosure further provides an image sensor including the near-infrared absorbing filter.

    OPTICAL FILTER AND MATCHING COMPOSITE LAYER THEREOF
    14.
    发明申请
    OPTICAL FILTER AND MATCHING COMPOSITE LAYER THEREOF 有权

    公开(公告)号：US20250138230A1

    公开(公告)日：2025-05-01

    申请号：US18801602

    申请日：2024-08-12

    Applicant: PLATINUM OPTICS TECHNOLOGY INC.

    Inventor： CHI-CHIEH WANG ,  CHIEN-MIN HUANG ,  REN-JIE WONG ,  LONG-KAI YE ,  KUANG-PING HUANG

    IPC: G02B5/28

    Abstract: An optical filter and a matching composite layer thereof are provided. The matching composite layer includes a plurality of first refraction layers, a plurality of second refraction layers, and a plurality of third refraction layers. A refractive index of the second refraction layer is greater than that of the first refraction layer, and is less than that of the third refraction layer. Any two of the second refraction layers provided with one of the first refraction layers sandwiched there-between are sandwiched between two of the third refraction layers so as to be jointly defined as a bidirectional incremental module. A number of the bidirectional incremental module included in the matching composite layer is at least M, where M is a positive integer greater than three. The M number of the bidirectional incremental modules are stacked and connected with each other.

    OPTICAL FILTER
    15.
    发明申请
    OPTICAL FILTER 有权

    公开(公告)号：US20250138229A1

    公开(公告)日：2025-05-01

    申请号：US18594068

    申请日：2024-03-04

    Applicant: PLATINUM OPTICS TECHNOLOGY INC.

    Inventor： CHI-CHIEH WANG ,  CHIEN-MIN HUANG ,  KUANG-PING HUANG ,  REN-JIE WONG

    IPC: G02B5/28

    Abstract: An optical filter includes a substrate, an adhesion layer formed on the substrate, and a matching composite layer formed on the adhesion layer and including a plurality of first refraction layers, a plurality of second refraction layers, and a plurality of third refraction layers. A quantity of the second refraction layers is less than that of the first refraction layers, and is less than that of the third refraction layers. A refractive index of the first refraction layer is greater than that of the adhesion layer. A refractive index of the second refraction layer is greater than that of the first refraction layer, and is less than that of the third refraction layer. Two of the second refraction layers sandwich one of the first refraction layers therebetween, and are sandwiched between two of the third refraction layers, so as to be jointly defined as a bidirectional incremental module.

    FILTER
    18.
    发明申请
    FILTER 有权

    公开(公告)号：US20240427067A1

    公开(公告)日：2024-12-26

    申请号：US18743919

    申请日：2024-06-14

    Applicant: PLATINUM OPTICS TECHNOLOGY INC.

    Inventor： Shih-Song Cheng ,  Bo-Xun Zhu ,  Jia-Cheng Chang ,  Kuan-Yu Chen ,  Hung-Han Duan ,  Shi-Lin Zhang ,  Bo-En Zhu

    IPC: G02B5/20 ,  G02B1/113 ,  G02B1/14

    Abstract: Provided is a filter, including a substrate layer and a near-infrared absorption layer on the substrate layer, wherein the near-infrared absorption layer includes a copper complex formed from a copper compound for supplying copper ion, phosphonric acid represented by formula 1 herein, and at least one phosphorus-containing compound represented by formulas 2 to 4 herein, wherein the OD value of the filter for the incident light wavelength from 930-950 nm is greater than 4. In the present disclosure, by setting a specific near-infrared absorption layer on the filter, the filter is able to efficiently absorb near-infrared and exhibit excellent visible light transmittance, and the burden of film post-processing can be reduced.

    Absorption type near infrared filter
    19.
    发明授权
    Absorption type near infrared filter 有权

    公开(公告)号：US11971565B2

    公开(公告)日：2024-04-30

    申请号：US17824904

    申请日：2022-05-26

    Applicant: PTOT (SUZHOU) INC. ,  PLATINUM OPTICS TECHNOLOGY INC.

    Inventor： Chung-Han Lu ,  Hsiao-Ching Shen ,  Chun-Cheng Hsieh ,  Ming-Zhan Wang

    IPC: G02B5/28 ,  G01N21/359 ,  G02B5/20 ,  G02B5/22 ,  G02B5/30

    CPC classification number: G02B5/282 ,  G01N21/359 ,  G02B5/208 ,  G02B5/223

    Abstract: An absorption type near-infrared filter comprising a first multilayer film, a second multilayer film, and an absorption film, wherein in the ultraviolet band, the difference of between the wavelength with the transmittance at 80% of the absorbing film and the wavelength with the reflectivity at 80% of the first multilayer film falls in the range between 25 nm and 37 nm, the difference of between the wavelength with the transmittance at 50% of the absorbing film and the wavelength with the reflectivity at 50% of the first multilayer film falls in the range between 6 nm and 14 nm, and the difference of between the wavelength with the transmittance at 20% of the absorbing film and the wavelength with the reflectivity at 20% of the first multilayer film falls in the range between −6 nm and 2.5 nm.

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