公开(公告)号：US12111981B2

公开(公告)日：2024-10-08

申请号：US18212645

申请日：2023-06-21

申请人： Magic Leap, Inc.

发明人： Michael Janusz Woods

IPC分类号： G06F3/0346 ,  G01S13/02 ,  G02B27/00 ,  G06F3/01

CPC分类号： G06F3/0346 ,  G02B27/0087 ,  G06F3/012 ,  G06F3/016 ,  G01S2013/0245

摘要： An electromagnetic tracking system includes a handheld controller including a first phased array element characterized by a first phase and a second phased array element characterized by a second phase different than the first phase. The first phased array element and the second phased array element are configured to generate a steerable electromagnetic beam characterized by an electromagnetic field pattern. The electromagnetic tracking system also includes a head mounted augmented reality display including an electromagnetic sensor configured to sense the electromagnetic field pattern.

公开(公告)号：US11885986B2

公开(公告)日：2024-01-30

申请号：US16943927

申请日：2020-07-30

申请人： Luminar Technologies, Inc.

发明人： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC分类号： G02B5/00 ,  G02B1/00 ,  G02F1/313 ,  G02F1/29 ,  G02B6/122 ,  G02B27/00 ,  G01S7/481

CPC分类号： G02B5/008 ,  G01S7/481 ,  G01S7/4814 ,  G01S7/4817 ,  G02B1/002 ,  G02B1/007 ,  G02B6/1226 ,  G02B27/0087 ,  G02F1/292 ,  G02F1/3133 ,  G02F2202/30

摘要： An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

公开(公告)号：US20190041552A1

公开(公告)日：2019-02-07

申请号：US15720221

申请日：2017-09-29

申请人： NANKAI UNIVERSITY

发明人： Shuqi CHEN ,  Wenwei LIU ,  Hua CHENG ,  Jianguo TIAN

IPC分类号： G02B3/08 ,  G02B27/00 ,  G02B6/122 ,  G02B27/54 ,  G02B6/10

CPC分类号： G02B3/08 ,  G02B5/1876 ,  G02B6/107 ,  G02B6/122 ,  G02B27/0012 ,  G02B27/0087 ,  G02B27/46 ,  G02B27/54

摘要： Provided are a Fourier lens, a method for designing a Fourier lens, and a schlieren apparatus. The Fourier lens includes a substrate and a plurality of cuboid waveguides. The plurality of waveguides are arranged on the substrate in parallel and spaced from each other at a preset interval. The material of the substrate and the material of the waveguides are all transparent to the working waveband of the Fourier lens. The preset interval is smaller than a quotient obtained by dividing a center wavelength of the working waveband by the refractive index of the substrate. The waveguide has a plurality of widths, and the waveguides of different widths correspond to different phase delays. The individual waveguides are arranged on the substrate according to phase delays required at different positions. According to the embodiments, the range of the working angle of the Fourier lens can be increased.

公开(公告)号：US10074451B2

公开(公告)日：2018-09-11

申请号：US15235173

申请日：2016-08-12

申请人： CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE S.A.-RECHERCHE ET DEVELOPPEMENT

发明人： Christian Kottler ,  Vincent Revol

IPC分类号： G21K1/06 ,  G01N23/20 ,  G02B5/18 ,  G02B27/42 ,  G01N23/20008 ,  G02B27/00 ,  A61B6/00 ,  A61B6/06

CPC分类号： G21K1/067 ,  A61B6/06 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/588 ,  A61B6/589 ,  G01N23/20008 ,  G01N23/20075 ,  G01N2223/1003 ,  G01N2223/313 ,  G02B5/1814 ,  G02B5/1819 ,  G02B5/1838 ,  G02B5/1871 ,  G02B27/0087 ,  G02B27/42 ,  G02B2005/1804 ,  G21K1/06 ,  G21K2201/067 ,  G21K2207/005

摘要： Embodiments relate to an X-ray interferometer for imaging an object comprising: a phase grating for effecting in correspondence with the phase grating geometry a phase shift to at least a part of X-ray incident onto the phase grating; and an absorption grating for effecting in correspondence with the absorption grating geometry absorption to at least a part of X-ray incident onto the absorption grating. The grating period of the phase grating, and the grating period of the absorption grating may be dimensioned such that a detector for X-rays can be placed at a relatively large distance away from the absorption grating such the phase contrast sensitivity of the image of the object detected by the detector remains substantially unaffected.

公开(公告)号：US20180039084A1

公开(公告)日：2018-02-08

申请号：US15729462

申请日：2017-10-10

申请人： MAGIC LEAP, INC.

发明人： Brian T. Schowengerdt

IPC分类号： G02B27/01 ,  G02B3/00

CPC分类号： G06T19/006 ,  G02B3/0006 ,  G02B3/0037 ,  G02B5/005 ,  G02B5/1814 ,  G02B5/1828 ,  G02B5/20 ,  G02B6/00 ,  G02B6/02042 ,  G02B6/06 ,  G02B6/32 ,  G02B6/34 ,  G02B6/40 ,  G02B17/08 ,  G02B26/0808 ,  G02B27/0087 ,  G02B27/0093 ,  G02B27/01 ,  G02B27/017 ,  G02B27/0172 ,  G02B27/0176 ,  G02B27/2264 ,  G02B27/4205 ,  G02B2006/0098 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0134 ,  G02B2027/014 ,  G02B2027/0163 ,  G02B2027/0178 ,  G02C7/049 ,  G02C7/104 ,  G02C2202/16 ,  G02F1/0105 ,  G02F1/1334 ,  G02F1/17 ,  G02F1/29 ,  G02F1/292 ,  G02F1/31 ,  G02F2001/294 ,  G06F3/011 ,  G06F3/013 ,  G06F3/017 ,  G06F3/1423 ,  G06K9/0061 ,  G06K9/52 ,  G06T5/002 ,  G06T5/003 ,  G06T5/50 ,  G06T7/50 ,  G06T7/73 ,  G06T13/40 ,  G06T15/00 ,  G06T15/10 ,  G06T15/506 ,  G06T17/10 ,  G06T19/003 ,  G06T19/20 ,  G06T2207/10021 ,  G06T2207/30201 ,  G06T2213/08 ,  G09G5/003 ,  G09G5/02 ,  G09G5/10 ,  G09G5/18 ,  H04N5/21 ,  H04N5/225 ,  H04N5/74 ,  H04N13/117 ,  H04N13/239 ,  H04N13/286 ,  H04N13/341 ,  H04N13/344 ,  H04N13/361 ,  H04N13/363 ,  H04N13/366 ,  H04N13/383 ,  H04N2013/0085

摘要： A system for displaying virtual content to a user includes at least one light source to multiplex a plurality of light beams to display a respective plurality of light patterns associated with one or more frames of image data. The system also includes a plurality of waveguides to receive the plurality of light beams and to direct the plurality of light beams toward an exit pupil, wherein the plurality of waveguides are stacked along an optical axis of the user. The system further includes at least one optical element to modify a focus of a light beam of the plurality of light beams directed by the plurality of waveguides.

公开(公告)号：US09829718B2

公开(公告)日：2017-11-28

申请号：US15266880

申请日：2016-09-15

申请人： The Institute of Optics and Electronics, The Chinese Academy of Sciences

发明人： Changhui Rao ,  Yang Li ,  Shengqian Wang

IPC分类号： G02B27/58 ,  G02B23/12 ,  G02B23/02

CPC分类号： G02B27/58 ,  G02B23/02 ,  G02B23/12 ,  G02B27/0087

摘要： The present disclosure provides a method for improving capability of resisting image noise of a co-phasing system of a dispersed fringe sensor. The method comprises the following steps: carrying out a coarse co-phasing adjustment by utilizing the dispersed fringe sensor until the coarse co-phasing is stabilized in a closed loop; collecting a two dimensional dispersed fringe image by the dispersed fringe sensor; superposing the dispersed fringe image along a dispersed direction so as to convert the two dimensional dispersed fringe image to a one dimensional image along an interferential direction; extracting peak values of the main peak, a left side lobe and a right side lobe of the one dimensional image along the interferential direction, and calculating corresponding piston error value of the image by carrying out a Left-subtracting-right LSR algorithm on these peak values.

公开(公告)号：US09790426B2

公开(公告)日：2017-10-17

申请号：US13497806

申请日：2010-09-14

申请人： Atsutaka Manabe ,  Mark Goebel ,  Dagmar Klass ,  Elvira Montenegro ,  Detlef Pauluth

发明人： Atsutaka Manabe ,  Mark Goebel ,  Dagmar Klass ,  Elvira Montenegro ,  Detlef Pauluth

IPC分类号： C09K19/18 ,  G02B27/00 ,  G02F1/29 ,  C09K19/30

CPC分类号： C09K19/18 ,  C09K19/30 ,  C09K19/3001 ,  C09K2019/186 ,  C09K2019/188 ,  C09K2219/11 ,  G02B27/0087 ,  G02F1/292

摘要： A component for high-frequency technology or for the microwave range and millimeter wave range of the electromagnetic spectrum. The component contains a liquid-crystal compound of the formula I in which the parameters have the respective meanings given in the claims or in the text, or a liquid-crystal medium which itself comprises one or more compounds of this formula I. Also, the corresponding, novel liquid-crystal media, the use and preparation thereof, and the production and use of the components. The components are particularly suitable as phase shifters in the microwave and millimeter wave range, for microwave and millimeter wave array antennae and very particularly for so-called tuneable reflectarrays.

公开(公告)号：US20170192237A1

公开(公告)日：2017-07-06

申请号：US15304841

申请日：2015-04-16

申请人： Carl Zeiss Smart Optics GmbH

发明人： Hans-Juergen DOBSCHAL ,  Karsten LINDIG ,  Guenter RUDOLPH ,  Ersun KARTAL ,  Lisa RIEDEL ,  rer. nat. Frank WIDULLE ,  Michael PATRA

IPC分类号： G02B27/01 ,  G02B27/30 ,  G02B27/00

CPC分类号： G02B27/0172 ,  G02B6/3522 ,  G02B27/0087 ,  G02B27/01 ,  G02B27/017 ,  G02B27/30 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/013 ,  G02B2027/0178

摘要： A spectacle lens for a display device can be fitted on the head of a user and generate an image. The front side and/or the rear side can be curved. A light guiding channel can guide-light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section and coupled out of the spectacle lens via the coupling-out section. The light guiding channel includes a first reflecting surface and a second reflecting surface spaced apart from the first reflecting surface, each of which extend in a direction from the coupling-in section to the coupling-out section. At least one of the two reflecting surfaces can be formed as a switchable layer which can be switched into a first and a second state. The reflectivity of the switchable layer in the first state is higher than in the second state.

公开(公告)号：US20170082907A1

公开(公告)日：2017-03-23

申请号：US15270769

申请日：2016-09-20

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Yeonsang Park ,  Younggeun Roh

IPC分类号： G02F1/29 ,  G02F1/01 ,  G02B27/28 ,  G02B5/30 ,  G02B6/126 ,  G02B27/00

CPC分类号： G02F1/292 ,  G02B1/002 ,  G02B5/008 ,  G02B5/3016 ,  G02B5/3058 ,  G02B6/126 ,  G02B26/08 ,  G02B27/0087 ,  G02B27/286 ,  G02F1/0136 ,  G02F2203/07 ,  G02F2203/24

摘要： A beam steering device, an optical apparatus including the beam steering device, and a beam steering method are provided. The beam steering device includes a polarization converter adjusting a polarization direction of light that is emitted from a light source, and an antenna array receiving the light from the polarization converter and emitting light in different propagating direction depending on the polarization direction of the light from the polarization converter.

公开(公告)号：US09482521B2

公开(公告)日：2016-11-01

申请号：US14615943

申请日：2015-02-06

申请人： RAYTHEON COMPANY

发明人： Dylan William Rohyans Martin ,  Rigel Quinn Woida-O'Brien ,  Nicholas D. Trail

IPC分类号： G01B11/02 ,  G01B11/27 ,  G02B23/10 ,  G02B7/182

CPC分类号： G01B11/272 ,  G01B9/02016 ,  G01B9/02032 ,  G02B7/1822 ,  G02B7/1827 ,  G02B23/10 ,  G02B27/0087 ,  G02B27/62

摘要： According to one aspect, a sparse optical system is provided. The sparse optical system includes optical segments, an optical source module to generate beams of light, a collimating module to direct the beams of light towards two adjacent optical segments, a detector to receive a reflection of the beams of light from the optical segments, and a processor. The processor instructs the optical source module to generate a first beam of light, determines a first measurement of an alignment of the two adjacent segments based on the reflection of the first beam, adjusts a position of an optical segment based on the first measurement, instructs the optical source module to generate a second beam of light, and determines a second measurement of the alignment of the two segments based on the reflection of the second beam.

摘要翻译： 根据一个方面，提供了一种稀疏的光学系统。 稀疏光学系统包括光学段，用于产生光束的光源模块，用于将光束引向两个相邻光学段的准直模块，用于接收来自光学段的光束的反射的检测器，以及 一个处理器 处理器指示光源模块产生第一光束，基于第一光束的反射确定两个相邻片段的对准的第一测量，基于第一测量来调整光学片段的位置，指示 所述光源模块用于产生第二光束，并且基于所述第二光束的反射来确定所述两个片段的对准的第二测量。