公开(公告)号：US11977314B2

公开(公告)日：2024-05-07

申请号：US17483643

申请日：2021-09-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takaiki Nomura ,  Masahiko Tsukuda ,  Yasuhisa Inada

IPC: G02B6/12 ,  G01S7/481 ,  G02B6/122 ,  G02B27/00 ,  G02F1/035 ,  G02F1/13 ,  G02F1/1339 ,  G02F1/137 ,  G02F1/29 ,  G02F1/295 ,  G01S17/08 ,  G02B6/124 ,  G02B6/125

CPC classification number: G02F1/2955 ,  G01S7/4817 ,  G02B6/12 ,  G02B6/122 ,  G02B27/0087 ,  G02F1/035 ,  G02F1/13 ,  G02F1/1326 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/137 ,  G02F1/292 ,  G02F1/295 ,  G01S7/481 ,  G01S17/08 ,  G02B6/12004 ,  G02B2006/121 ,  G02B2006/12104 ,  G02B2006/12107 ,  G02B2006/12138 ,  G02B6/124 ,  G02B6/125 ,  G02F2201/06 ,  G02F2201/066 ,  G02F2201/302

Abstract: An optical device includes a first substrate having a first surface, a second substrate having a second surface, at least one optical waveguide, and a plurality of spacers, disposed on at least either the first surface or the second surface, that include a first portion and a second portion. The first portion of the plurality of elastic spacers is at least one elastic spacer located in a region between the first substrate and the second substrate in which the first substrate and the second substrate overlap each other as seen from an angle parallel with a direction perpendicular to the first surface. The second portion of the plurality of elastic spacers is at least one elastic spacer located in a region in which the first substrate and the second substrate do not overlap each other as seen from an angle parallel with the direction perpendicular to the first surface.

公开(公告)号：US11835840B2

公开(公告)日：2023-12-05

申请号：US17574493

申请日：2022-01-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Hashiya ,  Yasuhisa Inada ,  Taku Hirasawa ,  Yoshikazu Yamaoka ,  Nobuaki Nagao

IPC: G02F1/295 ,  G01S7/481 ,  G01S17/42 ,  G01S17/89 ,  G02B6/122 ,  G02B6/12

CPC classification number: G02F1/295 ,  G01S7/4817 ,  G01S17/42 ,  G01S17/89 ,  G02B6/122 ,  G02F1/2955 ,  G02B2006/12104 ,  G02F2201/302

Abstract: An optical scanning device includes: a first waveguide that propagates light by total reflection; and a second waveguide. The second waveguide includes: a first multilayer reflective film; a second multilayer reflective film that faces the first multilayer reflective film; and a first optical waveguide layer directly connected to the first waveguide and located between the first and second multilayer reflective films. The first optical waveguide layer has a variable thickness and/or a variable refractive index and propagates the light transmitted through the first waveguide. The first multilayer reflective film has a higher light transmittance than the second multilayer reflective film and allows part of the light propagating through the first optical waveguide layer to be emitted to the outside. By changing the thickness of the first optical waveguide layer and/or its refractive index, the direction of the part of the light emitted from the second waveguide is changed.

公开(公告)号：US20230367174A1

公开(公告)日：2023-11-16

申请号：US17743972

申请日：2022-05-13

Applicant: SCIDATEK INC.

Inventor： Tomoyuki Izuhara ,  Junichiro Fujita ,  Louay Eldada

IPC: G02F1/295

CPC classification number: G02F1/2955 ,  G02F2201/302

Abstract: An optical beam scanning semiconductor device includes 1×N electrically controlled, integrated optical switch matrix and specifically designed integrated optical grating output couplers at each of N output waveguides of 1×N switch. By selecting one of the N outputs of the 1×N switch as the output of the input optical signal, an optical output beam scans in free space. Variation in the grating output coupler design enables a smart scanning device with multiple controllable beam characteristics.

公开(公告)号：US11789296B2

公开(公告)日：2023-10-17

申请号：US17577412

申请日：2022-01-18

Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor： Lan-Chou Cho ,  Chewn-Pu Jou ,  Feng-Wei Kuo ,  Huan-Neng Chen ,  Min-Hsiang Hsu

IPC: G02F1/025 ,  G02F1/015

CPC classification number: G02F1/025 ,  G02F1/0151 ,  G02F2201/302

Abstract: An optical modulator includes a dielectric layer and a waveguide. The waveguide is disposed on the dielectric layer. The waveguide includes an electrical coupling portion, a slab portion, and an optical coupling portion. The slab portion is directly in contact with both of the electrical coupling portion and the optical coupling portion. The slab portion has a first sub-portion and a second sub-portion connected to the first sub-portion. A top surface of the electrical coupling portion, a top surface of the first sub-portion, and a top surface of the second sub-portion are located at different level heights.

公开(公告)号：US11726252B2

公开(公告)日：2023-08-15

申请号：US17741404

申请日：2022-05-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhujun Shi ,  Keith Patterson ,  Maxwell Parsons ,  Giuseppe Calafiore ,  Yongdan Hu ,  Zhimin Shi

IPC: G02F1/1343 ,  F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0078 ,  G02F1/13439 ,  G02F1/134309 ,  G02F2201/063 ,  G02F2201/302

Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.

公开(公告)号：US11693292B2

公开(公告)日：2023-07-04

申请号：US17065220

申请日：2020-10-07

Applicant: Cisco Technology, Inc.

Inventor： Sujit Handanhal Ramachandra ,  Zhujun Yuan ,  Jonathan D. Austin ,  Prerak P. Shah

IPC: G02F1/29 ,  G02F1/295

CPC classification number: G02F1/295 ,  G02F2201/302 ,  G02F2203/24

Abstract: An apparatus includes a cladding layer and a plurality of waveguides. The cladding layer includes a central axis. The plurality of waveguides are disposed within the cladding layer and receive a light from a light source. The plurality of waveguides have refractive indices that are adjustable to change a mode of the light such that the mode of the light is steered towards the central axis.

公开(公告)号：US20180299706A1

公开(公告)日：2018-10-18

申请号：US15878619

申请日：2018-01-24

Applicant: Renesas Electronics Corporation

Inventor： Shinichi KUWABARA ,  Yasutaka NAKASHIBA ,  Tetsuya IIDA ,  Shinichi WATANUKI

IPC: G02F1/025 ,  H01L29/06 ,  H01L29/16 ,  H01L21/3065 ,  H01L21/311 ,  H01L21/02

CPC classification number: G02F1/025 ,  G02F2001/0151 ,  G02F2201/302 ,  G02F2202/105 ,  H01L21/02532 ,  H01L21/02595 ,  H01L21/0262 ,  H01L21/3065 ,  H01L21/31116 ,  H01L29/0657 ,  H01L29/16

Abstract: To reduce a production cost of a semiconductor device and provide a semiconductor device having improved characteristics. A grating coupler has a plurality of projections separated from each other in an optical waveguide direction and a slab portion formed between any two of the projections adjacent to each other and formed integrally with them; a MOS optical modulator has a projection extending in the optical waveguide direction and slab portions formed on both sides of the projection, respectively, and formed integrally therewith. The projection of the grating coupler and the MOS optical modulator is formed of a first semiconductor layer, a second insulating layer, and a second semiconductor layer stacked successively on a first insulating layer, while the grating coupler and the MOS optical modulator each have a slab portion formed of the first semiconductor layer.

公开(公告)号：US10082684B2

公开(公告)日：2018-09-25

申请号：US15106850

申请日：2014-01-24

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sagi Varghese Mathai ,  David A. Fattal ,  Michael Renne Ty Tan ,  Wayne Victor Sorin

IPC: G02F1/01 ,  G02F1/017 ,  H01S3/00

CPC classification number: G02F1/0102 ,  G02F1/01 ,  G02F1/017 ,  G02F2201/302 ,  G02F2201/307 ,  G02F2201/38 ,  G02F2203/28 ,  H01S3/0085

Abstract: A high contrast grating optical modulation includes an optical modulator at a front surface of a substrate to modulate received light. The high contrast grating optical modulation further includes a high contrast grating (HCG) lens adjacent to a back surface of the substrate opposite to the front surface to focus incident light onto the optical modulator. The substrate is transparent to operational wavelengths of the focused incident light and the modulated light.

公开(公告)号：US20170031160A1

公开(公告)日：2017-02-02

申请号：US15274049

申请日：2016-09-23

Applicant: DIGILENS, INC.

Inventor： Milan Momcilo POPOVICH ,  Jonathan David WALDERN ,  Alastair John GRANT

IPC: G02B27/00 ,  G02B6/34 ,  G02B27/01 ,  G02F1/29 ,  G02F1/313 ,  A61B3/113 ,  G02B6/42

CPC classification number: G02B27/0093 ,  A61B3/113 ,  G02B5/18 ,  G02B6/0016 ,  G02B6/34 ,  G02B6/4287 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0174 ,  G02B2027/0187 ,  G02F1/13342 ,  G02F1/292 ,  G02F1/2955 ,  G02F1/3132 ,  G02F2001/294 ,  G02F2201/16 ,  G02F2201/30 ,  G02F2201/302 ,  G02F2201/305 ,  G02F2201/307 ,  G02F2203/24 ,  G02F2203/28 ,  G02F2203/62 ,  G06K9/0061 ,  H04N5/33

Abstract: An eye tracker having a waveguide for propagating illumination light towards an eye and propagating image light reflected from at least one surface of an eye, a light source optically coupled to the waveguide, and a detector optically coupled to the waveguide. Disposed in the waveguide is at least one grating lamina for deflecting the illumination light towards the eye along a first waveguide path and deflecting the image light towards the detector along a second waveguide path.

Abstract translation: 一种眼睛跟踪器，具有用于将照明光朝向眼睛传播并传播从眼睛的至少一个表面反射的图像光的波导，光学耦合到波导的光源以及光学耦合到波导的检测器。 布置在波导中的是至少一个光栅层，用于沿着第一波导路径偏转照明光朝向眼睛，并沿着第二波导路径将图像光朝向检测器偏转。

公开(公告)号：US08755648B1

公开(公告)日：2014-06-17

申请号：US12645929

申请日：2009-12-23

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: G02B6/26 ,  G02B6/42

CPC classification number: G02F1/035 ,  G02B6/1226 ,  G02F1/025 ,  G02F1/2257 ,  G02F2201/302 ,  G02F2203/10 ,  G02F2203/50

Abstract: A plasmonic phase modulator and a method of phase modulation employ modulation of surface plasmons. The plasmonic phase modulator includes a semiconductor substrate configured to provide a surface charge that forms a plasmonic channel at the substrate surface. The modulator further includes an electrode and an insulator between the electrode and the semiconductor substrate. The electrode is configured to provide an electric field that influences the surface charge. The electric field includes a bias field component and a modulation field component. The surface plasmon is supported within the plasmonic channel at an interface between the semiconductor substrate surface and the insulator. A phase of the surface plasmon in the plasmonic channel is modulated by changes in the electric field. The method includes propagating the surface plasmon in the plasmonic channel and varying the modulation field component to modulate the phase of the propagating surface plasmon.

Abstract translation: 等离子体相位调制器和相位调制方法采用表面等离激元的调制。 等离子体相位调制器包括被配置为提供在衬底表面形成等离子体激元通道的表面电荷的半导体衬底。 调制器还包括电极和电极和半导体衬底之间的绝缘体。 电极被配置成提供影响表面电荷的电场。 电场包括偏置场分量和调制场分量。 表面等离子体激元在半导体衬底表面和绝缘体之间的界面处被支撑在等离子体激元通道内。 等离子体激元通道中的表面等离子体的相位由电场的变化来调制。 该方法包括在等离子体信号中传播表面等离子体，并改变调制场分量以调制传播表面等离子体的相位。