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公开(公告)号：US11968848B2
公开(公告)日：2024-04-23
申请号：US17071364
申请日：2020-10-15
Inventor： Seunghoon Han , Kwanghee Lee , Yongwan Jin , Yongsung Kim , Changgyun Shin , Jeongyub Lee , Amir Arbabi , Andrei Faraon , Yu Horie
IPC: H10K39/32 , H01L27/146
CPC classification number: H10K39/32 , H01L27/14621 , H01L27/14636 , H01L27/14645
Abstract: An image sensor includes a first light sensor layer including light sensing cells configured to sense first light of an incident light and generate electrical signals based on the sensed first light, and a color filter array layer disposed on the first light sensor layer, and including color filters respectively facing the light sensing cells. The image sensor further includes a second light sensor layer disposed on the color filter array layer, and configured to sense second light of the incident light and generate an electrical signal based on the sensed second light. Each of the color filters includes a nanostructure including a first material having a first refractive index, and a second material having a second refractive index greater than the first refractive index, the first material and the second material being alternately disposed with a period.
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公开(公告)号：US11698510B2
公开(公告)日：2023-07-11
申请号：US16800468
申请日：2020-02-25
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Sungwoo Hwang , Jangwoo You , Byounglyong Choi , Hyeonsoo Park
IPC: G02B9/12 , G02B9/14 , G02B13/00 , G02B13/18 , G02B9/10 , G02B5/18 , G02B3/08 , G02B1/00 , G02B27/00 , H04N23/55
CPC classification number: G02B9/12 , G02B1/002 , G02B3/08 , G02B5/1876 , G02B9/10 , G02B9/14 , G02B13/003 , G02B13/0035 , G02B13/0055 , G02B13/18 , G02B27/0025 , H04N23/55 , H05K999/99 , G02B2207/101
Abstract: Provided an imaging apparatus including a first optical device, a second optical device disposed such that light transmitted through the first optical device is incident on the second optical device, and a third optical device disposed such that light transmitted through the second optical device is incident on the third optical device, wherein at least one of the first optical device, the second optical device, and the third optical device includes a plurality of nanostructures, and heights of at least two nanostructures of the plurality of nanostructures are different from each other.
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公开(公告)号：US11428929B2
公开(公告)日：2022-08-30
申请号：US16885729
申请日：2020-05-28
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
Abstract: A focusing device includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.
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公开(公告)号：US11162841B2
公开(公告)日：2021-11-02
申请号：US16692776
申请日：2019-11-22
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Ehsan Arbabi
Abstract: A spectrometer includes a substrate; a slit which is provided on the substrate and through which light is incident onto the substrate; a metasurface including nanostructures that is configured to reflect and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor which is provided on one side of the substrate that is opposite to another side of the substrate at which the metasurface is disposed, and configured to receive the light from the metasurface.
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公开(公告)号：US11092486B2
公开(公告)日：2021-08-17
申请号：US16213810
申请日：2018-12-07
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： MohammadSadegh Faraji-Dana , Ehsan Arbabi , Amir Arbabi , Andrei Faraon
Abstract: Compact optical devices such as spectrometers are realized with metasurfaces within a dielectric medium confined by reflective surfaces. The metasurfaces control the phase profiles of the reflected electromagnetic waves within the device. In a compact spectrometer, the metasurfaces within the device separate the electromagnetic waves in different wavelengths. The metasurfaces are designed according to their phase profile by varying the size of the array of scatterers.
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Patent Agency Ranking
公开(公告)号：US10403668B2
公开(公告)日：2019-09-03
申请号：US15221719
申请日：2016-07-28
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
IPC: H04N13/00 , G06T7/00 , H01L27/146 , G03B35/10 , H04N5/225
Abstract: An image sensor includes a substrate, thin lenses disposed on a first surface of the substrate and configured to concentrate lights incident on the first surface, and light-sensing cells disposed on a second surface of the substrate, the second surface facing the first surface, and the light-sensing cells being configured to sense lights passing through the thin lenses, and generate electrical signals based on the sensed lights. A first thin lens and second thin lens of the thin lenses are configured to concentrate a first light and a second light, respectively, of the incident lights onto the light-sensing cells, the first light having a different wavelength than the second light.
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公开(公告)号：US09946051B2
公开(公告)日：2018-04-17
申请号：US15134885
申请日：2016-04-21
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Sungwoo Hwang , Jangwoo You , Byounglyong Choi
CPC classification number: G02B9/14 , G02B1/002 , G02B3/08 , G02B5/1876 , G02B9/10 , G02B9/12 , G02B13/003 , G02B13/0035 , G02B13/0055 , G02B13/18 , G02B2207/101 , H04N5/2254
Abstract: An imaging apparatus and an image sensor including the same are provided. The imaging apparatus includes first, second, and third optical devices. At least one of the first, second, and third optical devices is a thin-lens including nanostructures.
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公开(公告)号：US09453947B2
公开(公告)日：2016-09-27
申请号：US14558201
申请日：2014-12-02
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Amir Arbabi , Andrei Faraon
CPC classification number: G02B5/13 , G02B5/136 , G02F1/01 , H04B10/1123 , H04B10/40 , H04B10/501 , H04B10/516
Abstract: A retroreflector device is described, which includes a lens component operable for focusing radiation, which is incident thereto at an angle of incidence. The retroreflector also includes a mirror component operable for reflecting the radiation focused by the lens component back along the angle of incidence. The lens component and/or the mirror component includes a quasi-periodic array of elements, each of which comprises a dimension smaller than a wavelength of the radiation.
Abstract translation: 描述了后向反射器装置，其包括可操作用于以入射角入射到其上的聚焦辐射的透镜部件。 后向反射器还包括可以沿着入射角将由透镜部件聚焦的辐射反射回的反射镜部件。 透镜部件和/或反射镜部件包括元件的准周期性阵列，每个元件的尺寸小于辐射的波长。
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公开(公告)号：US11867556B2
公开(公告)日：2024-01-09
申请号：US17486326
申请日：2021-09-27
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Ehsan Arbabi
CPC classification number: G01J3/0208 , G01J3/0205 , G01J3/0224 , G01J3/0256 , G01J3/0259 , G01J3/2803 , G01J3/447 , B82Y20/00
Abstract: A spectrometer includes a transparent substrate including a first surface and a second surface that face each other and are substantially parallel to each other; a slit provided on the first surface and through which light is incident onto the transparent substrate; a spectrum optical system including metasurface including a plurality of nanostructures that are two-dimensionally arranged and satisfy a sub-wavelength scattering condition, wherein the metasurface includes a focusing metasurface which includes first nanostructures of the plurality of nanostructures, and is configured to reflect, disperse, and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor configured to receive the light from the focusing metasurface. When L is a total length of an optical path from the slit to the sensor and D is a thickness of the transparent substrate, L and D satisfy the following inequality: L/D>3.
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公开(公告)号：US20210288096A1
公开(公告)日：2021-09-16
申请号：US17335705
申请日：2021-06-01
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
IPC: H01L27/146
Abstract: An image sensor includes a substrate, thin lenses disposed on a first surface of the substrate and configured to concentrate lights incident on the first surface, and light-sensing cells disposed on a second surface of the substrate, the second surface facing the first surface, and the light-sensing cells being configured to sense lights passing through the thin lenses, and generate electrical signals based on the sensed lights. A first thin lens and second thin lens of the thin lenses are configured to concentrate a first light and a second light, respectively, of the incident lights onto the light-sensing cells, the first light having a different wavelength than the second light.
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