公开(公告)号：US20240365011A1

公开(公告)日：2024-10-31

申请号：US18306323

申请日：2023-04-25

申请人： Varjo Technologies Oy

发明人： Mikko Ollila

IPC分类号： H04N23/81 ,  G01S17/894 ,  G06T7/521 ,  G06T7/55 ,  H04N23/74 ,  H04N23/76

CPC分类号： H04N23/81 ,  G01S17/894 ,  G06T7/521 ,  G06T7/55 ,  H04N23/74 ,  H04N23/76 ,  G02B1/002 ,  G06T2207/10028 ,  G06T2207/20224

摘要： Disclosed is imaging system (200) including controllable light source; image sensor; metalens to focus light onto IS; and processor(s). The processor(s) is configured to control CLS to illuminate given part of field of view of IS at a first instant, while controlling IS to capture first image (FImg). The image segment(s) represent a given part as illuminated and remaining image segment(s) represent a remaining part of the FOV as non-illuminated. The processor controls the CLS to illuminate the remaining part at second instant, while controlling IS to capture a second image whose image segment(s) represents a given part as non-illuminated and a remaining image segment(s) represents a remaining part as illuminated. Output image is generated based on: (i) image segment(s) of FImg and remaining image segment(s) of SImg, and/or (ii) remaining image segment(s) of FImg and image segment(s) of SImg.

公开(公告)号：US20240345463A1

公开(公告)日：2024-10-17

申请号：US18646769

申请日：2024-04-26

申请人： SHENZHEN METALENX TECHNOLOGY CO.,LTD

发明人： Chenglong HAO ,  Fengze TAN ,  Jian ZHU

IPC分类号： G03B21/20 ,  G02B1/00 ,  G02B27/00 ,  G03B21/14

CPC分类号： G03B21/2033 ,  G02B1/002 ,  G02B27/0012 ,  G03B21/142 ,  G03B21/2013 ,  G02B2207/101

摘要： A point cloud projection system provided by the present disclosure includes: a laser source array and a metalens array. The laser source array and the metalens array are set on the same optical axis. The laser source array is located at the focal plane in the object space of the metalens array. The metalens array have a positive focal length in a working waveband of the laser source array.

公开(公告)号：US20240345398A1

公开(公告)日：2024-10-17

申请号：US18291511

申请日：2023-02-23

申请人： HES IP HOLDINGS, LLC

发明人： Jiunn-Yiing LAI ,  Yu-Chieh CHENG ,  Ken-Yu CHENG ,  Guo-Hsuan CHEN ,  Feng-Chun YEH ,  Tai-Kuo CHEN

IPC分类号： G02B27/01 ,  G02B1/00

CPC分类号： G02B27/0172 ,  G02B1/002 ,  G02B2027/011 ,  G02B2027/0116 ,  G02B2027/0134

摘要： An optical assembly for head wearable display includes a light redirecting layer, provided in a first optical path between a first light emitter and a first eye of a viewer, the light redirecting layer including a plurality of three dimensional geometric patterns that are cyclically provided on one surface of the light redirecting layer. The light redirecting layer includes a plurality of subunit sections, each of the plurality of subunit sections respectively includes the plurality of three dimensional geometric patterns with different physical dimensions for respectively receiving and redirecting light emission of different wavelengths of a first light signal emitted by the first light emitter toward the first eye of the viewer with different incident angles, the first light signal corresponds to a first pixel of an image. The plurality of three dimensional geometric patterns include pillar like three dimensional nanostructure protruding from a surface of the light redirecting layer.

公开(公告)号：US12105251B2

公开(公告)日：2024-10-01

申请号：US17431439

申请日：2020-03-24

申请人： Sony Group Corporation

发明人： Tonino Greco ,  Klaus Zimmermann

IPC分类号： G02B1/00 ,  G02B3/00

CPC分类号： G02B1/002 ,  G02B3/0087 ,  G02B2207/101

摘要： The disclosure generally pertains to a metalens portion comprising a plurality of holes in a first substrate, wherein at least two holes of the plurality of holes differ in size, and wherein a refractive index of the metalens portion is defined by at least one of shape of the holes and an arrangement pattern of the holes, thereby providing a metalens.

公开(公告)号：US20240319407A1

公开(公告)日：2024-09-26

申请号：US18404124

申请日：2024-01-04

申请人： POSTECH Research and Business Development Foundation

发明人： Junsuk RHO ,  Joohoon Kim ,  Junhwa Seong

IPC分类号： G02B1/00

CPC分类号： G02B1/002

摘要： A meta lens includes a substrate, a plurality of nanostructures provided on the substrate, and a high refractive index atomic layer formed along surfaces of the plurality of nanostructures and including a material having a refractive index greater than a refractive index of the plurality of nanostructures.

公开(公告)号：US12092791B2

公开(公告)日：2024-09-17

申请号：US17682085

申请日：2022-02-28

申请人： Imagia, Inc.

发明人： Gregory Kress ,  Abdoulaye Ndao ,  Arindom Datta

IPC分类号： G02B1/00 ,  C23C16/24 ,  C23C16/56 ,  G02B13/06 ,  G02B27/00 ,  G02B27/10 ,  G03F7/16 ,  H04N25/13 ,  G02B3/00 ,  G02B5/20

CPC分类号： G02B1/002 ,  C23C16/24 ,  C23C16/56 ,  G02B13/06 ,  G02B27/0025 ,  G02B27/1013 ,  G03F7/168 ,  H04N25/134 ,  G02B3/0056 ,  G02B2003/0093 ,  G02B5/201 ,  G02B2207/101

摘要： Various embodiments and configurations of optical imaging systems are described herein that utilize a metalens for narrowband deflection of target frequencies. For example, one embodiment of a multifrequency metalens includes an in-plane spatially multiplexed array of frequency-specific nanopillars or frequency-specific rows/columns of nanopillars that are intermingled with one another. In other embodiments, transmissive metalenses and/or reflective metalenses are tuned to focus color-separated visible light into red, green, and blue (RGB) channels of a digital image sensor.

公开(公告)号：US20240302568A1

公开(公告)日：2024-09-12

申请号：US18670047

申请日：2024-05-21

申请人： NIL Technology ApS

发明人： Jesper Fly Hansen ,  Villads Egede Johansen ,  Maksim Zalkovskij ,  Brian Bilenberg ,  James Eilertsen

IPC分类号： G02B1/00 ,  B29D11/00 ,  C23C16/04 ,  C23C16/455 ,  G02B5/18

CPC分类号： G02B1/002 ,  B29D11/0074 ,  C23C16/042 ,  G02B5/1857 ,  C23C16/45525 ,  G02B2207/101

摘要： Methods of manufacturing an optical device can include, in some implementations, providing a substrate having a first polymeric layer on a surface of the substrate and a second polymeric layer on the first polymeric layer, forming first openings in the second polymeric layer to define an etch mask composed of material of the second polymeric layer, and etching to form second openings in the first polymeric layer, wherein locations of the second openings are defined by the etch mask. A material is deposited in the second openings to form meta-atoms of a first metastructure, wherein adjacent ones of the meta-atoms are separated from one another by polymeric material of the first polymeric layer. Optical devices including metastructures can be formed, where meta-atoms of the metastructure have a relatively high aspect ratio.

公开(公告)号：US12078780B2

公开(公告)日：2024-09-03

申请号：US17371387

申请日：2021-07-09

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seaum Kim ,  Hyunsung Park ,  Seunghoon Han ,  Hyeonsoo Park

IPC分类号： G02B13/00 ,  G02B1/00 ,  G02B27/00

CPC分类号： G02B13/003 ,  G02B1/002 ,  G02B27/0025

摘要： An optical hybrid lens includes a refractive lens having a curved lens surface, a metalens including at least one metasurface formed on the curved lens surface to follow the curved lens surface of the refractive lens and including a plurality of nanostructures having a shape dimension of a sub-wavelength of incident light, and an adhesive layer between the curved lens surface of the refractive lens and the metalens. The metalens includes at least one metasurface including a plurality of nanostructures having a shape dimension of a sub-wavelength of incident light.

公开(公告)号：US12072568B2

公开(公告)日：2024-08-27

申请号：US17087206

申请日：2020-11-02

申请人： FUJIFILM Corporation

发明人： Yoshinori Taguchi ,  Tatsuo Ishikawa ,  Yuki Sakamoto

IPC分类号： G02B5/20 ,  G02B1/00 ,  G02F1/1335 ,  H04N25/11

CPC分类号： G02F1/133512 ,  G02B1/002 ,  G02B5/208 ,  G02F1/133514 ,  H04N25/11

摘要： A light-shielding resin composition contains: a light-shielding pigment which is one or more selected from the group consisting of metal nitride-containing particles containing an atom A and metal oxynitride-containing particles containing the atom A; and a resin, in which the light-shielding pigment contains at least one of a nitride or an oxynitride of a transition metal having an electronegativity of 1.22 to 1.80, among transition metals of groups 3 to 7, and the atom A is at least one selected from the group consisting of hafnium and tungsten, and is an atom different from the transition metal.

公开(公告)号：US20240284028A1

公开(公告)日：2024-08-22

申请号：US18569771

申请日：2022-06-09

申请人： NIL Technology ApS

发明人： Fredrik Mattinson ,  James Eilertsen ,  Theodor Nielsen

IPC分类号： H04N23/55 ,  G02B1/00 ,  H04N23/54 ,  H04N23/60 ,  H04N23/67

CPC分类号： H04N23/55 ,  G02B1/002 ,  H04N23/54 ,  H04N23/64 ,  H04N23/671

摘要： An apparatus in some implementations includes a metalens, an image sensor, and an actuator. The metalens is con-figured to generate multiple diffractive orders of an image at respective corresponding focal lengths. The actuator is operable to move at least one of the metalens or the image sensor to each of multiple positions so that a distance between the metalens and the image sensor is adjustable. The distance between the metalens and the image sensor for each respective one of the positions corresponds to a particular one of the focal lengths.