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1. 发明申请

US20230134576A1 UNPOLARIZED LIGHT GRATING INCOUPLER 有权
公开(公告)号：US20230134576A1
公开(公告)日：2023-05-04
申请号：US17911331
申请日：2021-03-22
申请人： InterDigital CE Patent Holdings, SAS
发明人： Oksana Shramkova , Valter Drazic , Laurent Blonde
IPC分类号： G02B5/18
摘要： In example embodiments, a diffractive element is provided. The diffractive element may include a substrate. A plurality of grating elements are provided on the substrate. Each grating element includes a first ridge region comprising a first ridge body region and a first core element, a second ridge region comprising a second ridge body region and a second core element, and a saddle region extending between the first and second ridge regions. In some embodiments, the first ridge body, the second ridge body, and the saddle region have a first refractive index (n2), and the first core element and second core element have a second refractive index (n4) greater than the first refractive index.

2. 发明授权

US11442198B2 Optical device capable of providing at least two different optical functions 有权
公开(公告)号：US11442198B2
公开(公告)日：2022-09-13
申请号：US16643792
申请日：2018-08-28
申请人： InterDigital CE Patent Holdings, SAS
发明人： Artem Boriskin , Oksana Shramkova
IPC分类号： G02B1/00 , G02B3/00 , G02B27/01
摘要： An optical device forming an outgoing electromagnetic wave from an incident electromagnetic wave comprises at least one unit cell (UC), comprising: at least two subwavelength optical elements (1, 2), each of them belonging to a different set (MSI, MS2) of subwavelength optical elements, a set of subwavelength optical elements being characterized by a type of optical response to an incident electromagnetic wave; means (21) enabling selective excitation of all subwavelength optical elements belonging to a given set, in response to an electromagnetic wave (20) incident on said unit cell.

3. 发明申请

US20220057552A1 OPTICAL DEVICE 有权
公开(公告)号：US20220057552A1
公开(公告)日：2022-02-24
申请号：US17416381
申请日：2019-12-20
申请人： InterDigital CE Patent Holdings, SAS
发明人： Oksana Shramkova , Valter Drazic
IPC分类号： G02B5/18 , G02B27/01
摘要： An optical device and an eyewear apparatus comprising the optical device are disclosed. The optical device comprises a diffraction grating configured to diffract an incident light of a given wavelength on said optical device, said diffraction grating having a grating pitch above said given wavelength and being configured to diffract said incident light at a diffraction order having an absolute value equal to or greater than 2, wherein the optical device comprises an optical waveguide configured for guiding said light diffracted at a diffraction order having an absolute value equal to or greater than 2. The diffraction grating comprises a substrate of a first dielectric material with refractive index n3 and at least one second dielectric material with refractive index n2 deposited on said substrate, where n3

4. 发明申请

US20210088705A1 A DIFFRACTION GRATING STRUCTURE COMPRISING SEVERAL GRATING LINES 有权
公开(公告)号：US20210088705A1
公开(公告)日：2021-03-25
申请号：US16954157
申请日：2018-12-11
申请人： InterDigital CE Patent Holdings,SAS
发明人： Valter Drazic , Mitra Damghanian , Oksana Shramkova
IPC分类号： G02B5/18 , F21V8/00 , H01L31/0232 , H01L51/52
摘要： In one embodiment of the disclosure, it is proposed diffraction grating structure comprising several grating lines. The diffraction grating structure is associated with a propagation layer, and the diffraction grating structure is made of a material that has a refractive index being equal to n2 (λ). The diffraction grating structure is remarkable in that it comprises 1/T grating lines per μm, with T=(n2 (λ)+1)/λ, where λ is a wavelength defined from an incident electromagnetic wave.

5. 发明授权

US11450699B2 Image sensor comprising pixels for preventing or reducing the crosstalk effect 有权
公开(公告)号：US11450699B2
公开(公告)日：2022-09-20
申请号：US16651261
申请日：2018-08-31
申请人： InterDigital CE Patent Holdings, SAS
发明人： Mitra Damghanian , Artem Boriskin , Oksana Shramkova , Valter Drazic , Laurent Blonde
IPC分类号： H01L31/0232 , H01L27/146
摘要： The present disclosure concerns an image sensor comprising a set of pixels, wherein each pixel of the set comprises a first and a second element, the first element comprising a photodiode module unit, and the second element being an element for filtering color and focusing incident light into said first element. The image sensor further comprises at least two consecutive pixels from the set of pixels, for which first elements are put side by side, and wherein the image sensor comprises a gap between second elements of said at least two consecutive pixels.

6. 发明申请

US20220059250A1 OPTICAL MANIPULATION APPARATUS 有权
公开(公告)号：US20220059250A1
公开(公告)日：2022-02-24
申请号：US17415561
申请日：2019-12-10
申请人： INTERDIGITAL CE PATENT HOLDINGS, SAS
发明人： Oksana Shramkova , Laurent Blonde , Valter Drazic , Mitra Damghanian
IPC分类号： G21K1/00
摘要： A device configured for radiating a focused electromagnetic beam is proposed. Such device comprises: —a first (101) and a second (102) part having respectively a second n2 and third n3 refractive index and a first W1 and second W2; —a first contact area (100e1) intended to be between a host medium having a first refractive index n1 and in which the micro or nanoparticles are intended to be trapped or moved by a focused electromagnetic beam radiated by the device; —a second contact area (100e2) between the first part and the second part; and —a third contact area (100e3) intended to be between the second part and the host medium. The focused electromagnetic beam results from a combination of at least two beams among a first (NJ1), a second (NJ2) and a third (NJ3) jet beams radiated respectively by the first, second and third contact areas when an incoming electromagnetic wave (IEM) illuminates the device. The device is configured for having a direction of propagation of the focused electromagnetic beam tilted in respect of a direction of propagation of the incoming electromagnetic wave.

7. 发明申请

US20200233223A1 DEVICE FOR DEVIATING AND FOCUSING LIGHT 审中-公开
公开(公告)号：US20200233223A1
公开(公告)日：2020-07-23
申请号：US16650812
申请日：2018-08-27
申请人： InterDigital CE Patent Holdings, SAS
发明人： Oksana Shramkova , Artem Boriskin , Laurent Blonde
IPC分类号： G02B27/09
摘要： The present disclosure concerns a device for generating and guiding nanojets beams from an incident electromagnetic wave on said device. The device is remarkable in that it comprises:—a first layer of a dielectric material having a first refractive index value (n1);—a second layer of a dielectric material having a second refractive index value (n2), wherein said second refractive index value is greater than said first refractive index value; and wherein a first boundary between said first and second layers comprises a first single step shape structure, said first single step shape structure being a change of level that is defined sensibly according to a first straight line being associated with an angle of inclination close to a first angle of inclination, wherein said device further comprising a dielectric element comprised in an embedding layer, said embedding layer being either said first layer or said second layer, said dielectric element having a refractive index (n3), higher than the one from said embedding layer, and wherein a second boundary between said dielectric element and said embedding layer comprises a second single step shape structure, said second single step shape structure being a change of level that is defined sensibly by a second straight line being associated with an angle of inclination close to a second angle of inclination, and wherein said second single step shape structure is positioned at the vicinity of said first single step shape structure for focusing nanojets beams generated by each of said first and second single step shape structures around a first focusing point.

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