公开(公告)号：US20240249537A1

公开(公告)日：2024-07-25

申请号：US18624067

申请日：2024-04-01

申请人： YAZAKI CORPORATION

发明人： Kunimitsu Aoki

IPC分类号： G06V20/59 ,  B60K35/234 ,  G02B5/30 ,  G02B26/06 ,  G02B27/28 ,  G06V10/14

CPC分类号： G06V20/597 ,  G02B5/3016 ,  G02B26/06 ,  G02B27/28 ,  G06V10/14 ,  B60K35/234 ,  B60K2360/21 ,  B60K2360/25 ,  B60K2360/349

摘要： A vehicle display device that can easily determine the driver's state of wearing polarized sunglasses is provided. A vehicle display device includes a polarizer that is disposed in front of a lens of a camera that continuously acquires face images of a driver P so that a polarization direction becomes a horizontal direction that is orthogonal to a vertical direction. In the vehicle display device, a control unit calculates a luminance value corresponding to each face image, and causes a storage unit to store the calculated luminance values therein as the luminance value information in association with a time series. The control unit then compares the current luminance value information with the past luminance value information in a plurality of pieces of luminance value information stored in the storage unit and when the current luminance value information decreases, determines that the driver puts on the polarized sunglasses.

公开(公告)号：US11947104B2

公开(公告)日：2024-04-02

申请号：US17641770

申请日：2020-09-09

申请人： KOREA BASIC SCIENCE INSTITUTE ,  INSTITUTE FOR BASIC SCIENCE ,  GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： I Jong Kim ,  Ji Yong Bae ,  Hong Seung Kim ,  Geon Hee Kim ,  Ki Soo Chang ,  Cheonha Jeon ,  Il Woo Choi ,  Chang Hee Nam

IPC分类号： G02B26/06 ,  G02B26/08 ,  G02B27/00

CPC分类号： G02B26/06 ,  G02B26/0825 ,  G02B27/0068

摘要： A spiral phase plate, according to one embodiment, for generating a Laguerre Gaussian beam by reflecting an incident beam emitted from a light source, may comprise: a first quadrant area in which the step height increase rate per unit angle decreases progressively in one direction from the point with the lowest step height to the point with the highest step height; and a second quadrant area in which the step height increase rate per unit angle increases progressively in the one direction.

公开(公告)号：US11815675B2

公开(公告)日：2023-11-14

申请号：US17633882

申请日：2020-07-27

申请人： ASML Netherlands B.V.

发明人： Arie Jeffrey Den Boef ,  Simon Reinald Huisman

IPC分类号： G02B26/06 ,  G02F1/11 ,  G03F9/00

CPC分类号： G02B26/06 ,  G02F1/113 ,  G03F9/7088

摘要： Disclosed is a phase modulator apparatus comprises at least a first phase modulator for modulating input radiation, and a metrology device comprising such a phase modulator apparatus. The first phase modulator comprises a first moving grating in at least an operational state for diffracting the input radiation and Doppler shifting the frequency of the diffracted radiation; and a first compensatory grating element comprising a pitch configured to compensate for wavelength dependent dispersion of at least one diffraction order of said diffracted radiation.

公开(公告)号：US11740392B1

公开(公告)日：2023-08-29

申请号：US17357531

申请日：2021-06-24

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Andrew John Ouderkirk ,  Katherine Marie Smyth

IPC分类号： G02B3/14 ,  G02C7/06 ,  G02B27/01 ,  G02B26/06 ,  G02B26/08 ,  G02B3/12 ,  G02F1/1362 ,  G02B1/10 ,  G02B26/00 ,  G02B3/04 ,  G02B3/00

CPC分类号： G02B3/14 ,  G02B1/10 ,  G02B3/12 ,  G02B26/004 ,  G02B26/06 ,  G02B26/0875 ,  G02B27/017 ,  G02B27/0172 ,  G02C7/06 ,  G02F1/136277 ,  G02B3/04 ,  G02B2003/0093 ,  G02B2027/011 ,  G02B2027/0107 ,  G02B2027/0178

摘要： The disclosed optical lens assemblies may include a structural support element, a deformable element coupled to the structural support element, and a deformable medium positioned between the deformable element and the structural support element. The deformable element may include a base element that, when deformed, alters an optical property of the optical lens assembly. The deformable element may have a non-uniform stiffness. Related methods of fabricating an optical lens assembly are also disclosed.

公开(公告)号：US11726310B2

公开(公告)日：2023-08-15

申请号：US17174703

申请日：2021-02-12

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sangeun Mun ,  Hyeonsoo Park ,  Hyunsung Park ,  Seunghoon Han

IPC分类号： G02B26/06 ,  G02B1/00

CPC分类号： G02B26/06 ,  G02B1/002 ,  G02B2207/101

摘要： A meta-optical device includes a plurality of phase modulation areas configured to modulate a phase of an incident light, each of the plurality of phase modulation areas including a plurality of nanostructures having a shape and an arrangement that are determined according to a respective rule set for each of the plurality of phase modulation areas; and a compensation area located between a kth phase modulation area and a (k+1)th phase modulation area adjacent to each other, from among the plurality of phase modulation areas, and including a compensation structure for buffering an effective refractive index change occurring in a boundary area between the kth phase modulation area and the (k+1)th phase modulation area according to respective rules of the kth phase modulation area and the (k+1)th phase modulation area, wherein N is a number of the plurality of phase modulation areas, k and N are natural numbers, and k is equal to or greater than 1 and less than N.

公开(公告)号：US11693096B2

公开(公告)日：2023-07-04

申请号：US16808457

申请日：2020-03-04

申请人： Texas Instruments Incorporated

发明人： Terry Alan Bartlett ,  John Peter Fenske

IPC分类号： G01S7/481 ,  G02F1/137 ,  G02B27/30 ,  G02B26/06

CPC分类号： G01S7/4815 ,  G01S7/4816 ,  G02B26/06 ,  G02B27/30 ,  G02F1/137 ,  G02F2203/50

摘要： Described examples include an apparatus having a phase light modulator. The apparatus also has a first light source configured to direct a first light beam to the phase light modulator, the phase light modulator configured to provide a first modulated light beam directed to a first field of view. The apparatus also has a second light source configured to direct a second light beam to the phase light modulator, the phase light modulator configured to provide a second modulated light beam directed to a second field of view. The apparatus also has a first light detector configured to detect the first modulated light beam as reflected from the first field of view; and a second light detector configured to detect the second modulated light beam as reflected from the second field of view.

公开(公告)号：US11686887B1

公开(公告)日：2023-06-27

申请号：US17160169

申请日：2021-01-27

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Katherine Marie Smyth ,  Andrew John Ouderkirk

IPC分类号： G02C7/02 ,  G02B3/14 ,  G02C7/06 ,  G02B27/01 ,  G02B26/06 ,  G02B3/12 ,  G02F1/1362 ,  G02B26/08

CPC分类号： G02B3/14 ,  G02B3/12 ,  G02B26/06 ,  G02B26/0875 ,  G02B27/017 ,  G02B27/0172 ,  G02C7/06 ,  G02F1/136277 ,  G02B2027/011 ,  G02B2027/0107 ,  G02B2027/0178

摘要： The disclosed optical lens assemblies may include a pre-strained deformable element that exhibits a non-uniform mechanical strain or stress profile, a structural support element coupled to the pre-strained deformable element, and a deformable medium positioned between the pre-strained deformable element and the structural support element. Related head-mounted displays and methods of fabricating such optical lens assemblies are also disclosed.

公开(公告)号：US11668961B2

公开(公告)日：2023-06-06

申请号：US16355424

申请日：2019-03-15

申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. ,  Technische Universitaet Dresden

发明人： Joerg Heber ,  Matthias Roth ,  Klaus Janschek

IPC分类号： G02F1/01 ,  G02F1/1333 ,  G02B26/06 ,  G02B27/46 ,  G02F1/13

CPC分类号： G02F1/01 ,  G02B26/06 ,  G02B27/46 ,  G02F1/1333 ,  G02F1/1313 ,  G02F2203/12 ,  G02F2203/50 ,  G03H2223/13 ,  G03H2225/30 ,  G03H2225/55

摘要： A phase and phase/amplitude spatial light modulator arrangement for generating a complex-valued light field with a spatial light modulator, a phase element and an optical system. The phase and amplitude spatial light modulator arrangement is configured to generate a light field that is adjustable in amount and phase.
A method realizes operation of a combined spatial light modulator for generating a complex-valued light field. Here, the method includes adapting an optical characteristic in several areas of a phase element.
A further method realizes operation of an optical arrangement for modulating different light wavelengths by adjusting several wave influences in several areas of a phase modulator.
A last method realizes operation of an optical arrangement by adjusting an amplitude spatial light modulator for modulating light intensities in at least two optical paths.

公开(公告)号：US20190196403A1

公开(公告)日：2019-06-27

申请号：US15751626

申请日：2017-07-18

申请人： BOE Technology Group Co., Ltd.

发明人： Feng GUAN ,  Xue DONG ,  Xin GU ,  Meili WANG ,  Wei WANG ,  Jifeng TAN

IPC分类号： G03H1/22 ,  G03H1/02 ,  G02B26/06

CPC分类号： G03H1/2286 ,  G02B26/06 ,  G02B27/22 ,  G03H1/02 ,  G03H1/22 ,  G03H1/2294 ,  G03H2001/0224

摘要： The present disclosure relates to a holographic display apparatus and a method for display by using the same. The holographic display apparatus comprises: a display device, wherein the display device comprises pixels, the pixel contains a light-emitting component, and in each pixel, an amplitude of a light wave emitted from the light-emitting component is independently adjustable; and a phase-controlling plate, wherein the phase-controlling plate is located at a position between the light-emitting component and a light emergence surface of the display apparatus, so that a phase of the light wave emitted from the light-emitting component in each pixel, when the light wave arrives the light emergence surface, is independently adjustable by the phase-controlling plate.

公开(公告)号：US20190137890A1

公开(公告)日：2019-05-09

申请号：US16095962

申请日：2017-04-19

申请人： ASML NETHERLANDS B.V.

发明人： Teunis Jan IKKINK

IPC分类号： G03F7/20 ,  G01B9/02 ,  G01B11/00

CPC分类号： G03F7/7085 ,  G01B9/0201 ,  G01B9/02011 ,  G01B9/02015 ,  G01B9/02019 ,  G01B9/02022 ,  G01B9/02097 ,  G01B2290/70 ,  G01D5/266 ,  G02B26/06 ,  G02B27/286 ,  G03F7/70775

摘要： A position measurement system configured to measure a position of an object. The system includes an optical system to obtain a first measurement wave and a second measurement wave from a radiation source, and to allow the first and second measurement wave to at least partially interfere with each other after interaction of at least one of the first and second measurement wave with the object to form a first detection beam. The system further includes a first detector to receive the first detection beam. The system also has a processing unit configured to receive an output from the first detector and to determine a signal representative for the position of the object from the output, wherein the optical system includes a phase modulator configured to modulate a phase difference between the first measurement wave and the second measurement wave.