公开(公告)号：US20180275315A1

公开(公告)日：2018-09-27

申请号：US15662747

申请日：2017-07-28

Applicant: Platinum Optics Technology(Suzhou)Inc. ,  Platinum Optics Technology Inc.

Inventor： Chun-Cheng HSIEH ,  Chun-Yao OU ,  Chung-Han LU

IPC: G02B1/04 ,  G02B5/20 ,  G02B5/22 ,  C08K5/3417 ,  H01L27/146

CPC classification number: G02B1/04 ,  C08K5/3417 ,  G02B5/208 ,  G02B5/22 ,  H01L27/14618 ,  H01L27/1462 ,  H01L27/14621 ,  H01L27/14625

Abstract: The present disclosure is related to a filter, which includes a near infrared light filtering substrate, having a near infrared light absorbing dye; an absorbing layer, having a near infrared light absorbing dye and an ultraviolet light absorbing dye, and formed on one surface of the near infrared light filtering substrate; a first multi-layer film, formed on the absorbing layer; and a second multi-layer film, formed on the other surface of the near infrared light filtering substrate.

公开(公告)号：US20220283347A1

公开(公告)日：2022-09-08

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

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.

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.

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.