公开(公告)号：US20230251408A1

公开(公告)日：2023-08-10

申请号：US17884740

申请日：2022-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyochul KIM ,  Moonsook Lee ,  Younggeun ROH

IPC: G02B5/20 ,  G02B5/30

CPC classification number: G02B5/201 ,  G02B5/3058 ,  G02B5/28

Abstract: Provided is an optical filter including a spectral filter, and a polarizing filter provided on the same plane as the spectral filter, wherein the spectral filter includes a plurality of spectral unit filters having different central wavelengths, and wherein the polarizing filter includes a plurality of polarization unit filters having different central wavelengths.

公开(公告)号：US20220128407A1

公开(公告)日：2022-04-28

申请号：US17506293

申请日：2021-10-20

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Jaesoong LEE ,  Hyochul KIM ,  Yeonsang PARK

IPC: G01J3/26 ,  G01J3/18 ,  G01J3/28

Abstract: Provided is a spectral filter including a first Bragg reflective layer, a second Bragg reflective layer that is spaced apart from the first Bragg reflective layer and includes a cavity, the first resonance layer being provided between the first Bragg reflective layer and the second Bragg reflective layer, a second resonance layer including at least a portion of the first Bragg reflective layer, the second Bragg reflective layer, and the cavity, a third Bragg reflective layer, a fourth Bragg reflective layer spaced apart from the third Bragg reflective layer, wherein the second resonance layer is provided between the third Bragg reflective layer and the fourth Bragg reflective layer.

公开(公告)号：US20210191141A1

公开(公告)日：2021-06-24

申请号：US17095477

申请日：2020-11-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yeonsang PARK ,  Hyochul KIM ,  Jaesoong LEE ,  Younggeun ROH

IPC: G02B27/28 ,  G02B5/20 ,  G02B5/28 ,  G01J4/04

Abstract: Provided is a polarization spectral filter, including: a first reflector and a second reflector disposed to face each other in a first direction; and a grating layer disposed between the first reflector and the second reflector. The grating layer includes a plurality of first grating elements and a plurality of second grating elements, the plurality of first grating elements and the plurality of second grating elements being alternately arranged in a second direction perpendicular to the first direction. The plurality of first grating elements include a first dielectric material having a first refractive index. The plurality of second grating elements include a second dielectric material having a second refractive index different from the first refractive index.

公开(公告)号：US20210033466A1

公开(公告)日：2021-02-04

申请号：US16778164

申请日：2020-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyochul KIM ,  Younggeun Roh ,  Yeongsang Park

IPC: G01J3/51 ,  G01J3/18 ,  G02B5/18 ,  G02B5/20

Abstract: Provided is an optical filter including a plurality of bandpass filters having center wavelengths of light that are different from one another, wherein each of the plurality of bandpass filters includes a cavity layer, a first Bragg reflective layer provided on an upper surface of the cavity layer, and a second Bragg reflective layer provided on a lower surface of the cavity layer opposite to the upper surface, wherein the cavity layer has a thickness greater than A/n, where A is a center wavelength of light of each of the bandpass filters and n is an effective refractive index of the cavity layer, and wherein each of the first Bragg reflective layer and the second Bragg reflective layer includes three or more material layers having different refractive indices from one another.

公开(公告)号：US20190115723A1

公开(公告)日：2019-04-18

申请号：US15941823

申请日：2018-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jineun KIM ,  Unjeong KIM ,  Hyochul KIM ,  Yeonsang PARK ,  Moonil Jung

IPC: H01S5/183 ,  H01S5/026 ,  H01S5/068 ,  H01S5/04

Abstract: A tunable laser device is provided. The tunable laser device includes an active layer configured to generate first light by a first source; first and second reflective layers spaced apart from each other having the active layer disposed between the first reflective layer and the second reflective layer to form a resonance cavity; and a variable refractive index unit in the resonance cavity and having a refractive index being variable according to a second source, the second source being different from the first source.

公开(公告)号：US20190101444A1

公开(公告)日：2019-04-04

申请号：US15935193

申请日：2018-03-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngzoon YOON ,  Hyochul KIM ,  Younggeun ROH

IPC: G01J3/02 ,  G01J3/28

Abstract: A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic.

公开(公告)号：US20240175750A1

公开(公告)日：2024-05-30

申请号：US18434658

申请日：2024-02-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan SIDDIQUE ,  Daniel ASSUMPCAO ,  Hyuck CHOO ,  Hyochul KIM

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/44

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/18 ,  G01J3/4412

Abstract: Optical spectrometers may be used to determine the spectral components of electromagnetic waves. Spectrometers may be large, bulky devices and may require waves to enter at a nearly direct angle of incidence in order to record a measurement. What is disclosed is an ultra-compact spectrometer with nanophotonic components as light dispersion technology. Nanophotonic components may contain metasurfaces and Bragg filters. Each metasurface may contain light scattering nanostructures that may be randomized to create a large input angle, and the Bragg filter may result in the light dispersion independent of the input angle. The spectrometer may be capable of handling about 200 nm bandwidth. The ultra-compact spectrometer may be able to read image data in the visible (400-600 nm) and to read spectral data in the near-infrared (700-900 nm) wavelength range. The surface area of the spectrometer may be about 1 mm2, allowing it to fit on mobile devices.

公开(公告)号：US20230099112A1

公开(公告)日：2023-03-30

申请号：US17989605

申请日：2022-11-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan SIDDIQUE ,  Daniel ASSUMPCAO ,  Hyuck CHOO ,  Hyochul KIM

IPC: G01J3/28 ,  G01J3/44 ,  G01J3/02 ,  G01J3/18

Abstract: Optical spectrometers may be used to determine the spectral components of electromagnetic waves. Spectrometers may be large, bulky devices and may require waves to enter at a nearly direct angle of incidence in order to record a measurement. What is disclosed is an ultra-compact spectrometer with nanophotonic components as light dispersion technology. Nanophotonic components may contain metasurfaces and Bragg filters. Each metasurface may contain light scattering nanostructures that may be randomized to create a large input angle, and the Bragg filter may result in the light dispersion independent of the input angle. The spectrometer may be capable of handling about 200 nm bandwidth. The ultra-compact spectrometer may be able to read image data in the visible (400-600 nm) and to read spectral data in the near-infrared (700-900 nm) wavelength range. The surface area of the spectrometer may be about 1 mm2, allowing it to fit on mobile devices.

公开(公告)号：US20220020796A1

公开(公告)日：2022-01-20

申请号：US17367759

申请日：2021-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyochul KIM ,  Younggeun ROH

IPC: H01L27/146 ,  G02B5/28

Abstract: Provided are a spectral filter, a method of manufacturing the same, and an image sensor and an electronic device each including the spectral filter. The spectral filter includes a plurality of first reflective layers provided spaced apart from each other, and a plurality of cavities provided between the plurality of first reflective layers. The cavities have different thicknesses according to a center wavelength. Each of the cavities includes a plurality of etch stop layers having a constant total thickness according to the center wavelength, and at least one dielectric layer having a total thickness which changes according to the center wavelength, wherein the etch stop layers include materials having etch selectivities different than that of the dielectric layer.

公开(公告)号：US20210048342A1

公开(公告)日：2021-02-18

申请号：US16713131

申请日：2019-12-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyochul KIM ,  Younggeun ROH ,  Yeonsang PARK ,  Suyeon LEE

IPC: G01J3/28 ,  G02B5/20

Abstract: Provided is a spectral imaging apparatus. The spectral imaging apparatus includes: an optical filter including a plurality of band filter units having different center wavelengths; a sensing device configured to receive light passing through the optical filter; an imaging lens array including a plurality of lens units which respectively correspond to the plurality of band filter units and each implement imaging on the sensing device; and a transparent substrate which is apart from the sensing device. At least one of the optical filter and the imaging lens array is provided on the transparent substrate.