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公开(公告)号：US12124002B2
公开(公告)日：2024-10-22
申请号：US17466813
申请日：2021-09-03
申请人： Apple Inc.
发明人： Daryl I. Vulis , Brandon J. Hui , Christian Ocier , Shang Wang , Tong Chen , Zhenbin Ge , Runyu Zhang
CPC分类号： G02B1/002 , G02B5/1809
摘要： Configurations for a beam deflector metasurface are disclosed. The beam deflector metasurface may include beam deflectors arranged in a repeating, radial pattern of concentric zones. The beam deflector metasurface may be a large area, high numerical aperture metasurface optic with high efficiency when directing light at non-normal angles of incidence. The different concentric zones may direct received light in varying directions with various steepness of angles. The beam deflectors may include pillars that may be the same or different width, height, or shape. The pillars may function as diffractive gratings and the cross-coupling between the pillars may direct the output light. The zones of the beam deflector metasurface may allow for diffusing hot spots and spreading the light evenly over the target area. The beam deflector metasurface may be used for non-imaging applications where the deterioration of focus allows for better efficiency at non-normal input and output angles of incidence. The beam deflectors may be designed for polarization and wavelength sensitivity as well as allowing for multiple processing benefits such as patterning the beam deflectors onto active devices.
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公开(公告)号：US12050329B2
公开(公告)日：2024-07-30
申请号：US17280768
申请日：2019-09-27
IPC分类号： G02B5/18
CPC分类号： G02B5/1809 , G02B2207/101
摘要： A device (200) is proposed comprising a first part (101) of a first material having a first refractive index n1 and a second part (102) of a second material having a second refractive index n2 higher than n1. Such device further comprises at least one contact area (110) in between the first and second parts, radiating an outgoing electromagnetic wave (100o) when the device is illuminated by an incoming electromagnetic wave (100i). A projection of the at least one contact area along a direction of propagation of the incoming electromagnetic wave has a non-vanishing height lower than 1.2 times a critical height equal to a wavelength in vacuum of the incoming electromagnetic wave divided by the difference between the second refractive index n2 and the first refractive index n1.
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公开(公告)号：US20240234461A1
公开(公告)日：2024-07-11
申请号：US18433269
申请日：2024-02-05
申请人： Metalenz, Inc.
发明人： Robert C. Devlin , John Graff
CPC分类号： H01L27/14625 , G02B1/002 , G02B5/1809 , G02B5/1814 , G02B27/0944 , G02B27/0988 , G02B27/4233 , G02B27/4244 , G02B27/4294 , H01L27/14618 , H01L27/14621 , H04N23/55
摘要： Hybrid imaging systems incorporating conventional optical elements and metasurface elements with light sources and/or detectors, and methods of the manufacture and operation of such optical arrangements are provided. Systems and methods describe the integration of apertures with metasurface elements and refractive optics with metasurface elements in illumination sources and sensors.
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公开(公告)号：US11977248B2
公开(公告)日：2024-05-07
申请号：US17375099
申请日：2021-07-14
CPC分类号： G02B5/3025 , G02B5/1809
摘要： The present invention relates to an optical filter with nanostructured layers and spectral sensors with layers of such kind. The optical filter has at least two nanostructured layers, each of which forms a transmission grating from grating wires extending parallel to each other. The grating wires of the two transmission gratings intersect each other and are positioned one on top of the other in the optical filter. An optical polarise which polarises incident optical radiation linearly parallel to the grating wires of one of the two transmission gratings is arranged over the transmission gratings. The optical filter can be produced as a bandpass filter with standard semiconductor processes without additional layers or modification of said processes.
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公开(公告)号：US20240118554A1
公开(公告)日：2024-04-11
申请号：US18220764
申请日：2023-07-11
发明人： Francesco Aieta , Mikhail Kats , Patrice Genevet , Federico Capasso , Mohammadreza Khorasaninejad
CPC分类号： G02B27/4211 , G02B1/002 , G02B5/008 , G02B5/203 , H01Q15/10 , G02B5/1809
摘要： Multi-wavelength light is directed to an optic including a substrate and metasurface optical components deposited on a surface of the substrate. The metasurface optical components comprise a pattern of silicon dielectric resonators with nonperiodic gap distances between adjacent dielectric resonators. Incident light directed to the metasurface optical components is scattered and phase-shifted by the configuration of the gap distances and the widths and thicknesses of the dielectric resonators. Each dielectric resonator has a rectangular cross-section such that a first phase shift is imparted for a transverse-electric (TE) component of the incident light and a second phase shift is imparted for a transverse-magnetic (TM) component of the incident light.
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公开(公告)号：US20240118468A1
公开(公告)日：2024-04-11
申请号：US17961451
申请日：2022-10-06
发明人： Yifei ZHANG , Yarn Chee POON , Mathew David WATSON
CPC分类号： G02B5/208 , G02B5/1809 , G02B5/201
摘要： A rainbow artifact mitigation system includes an angular dependent filter configured to receive light and to transmit light according to one or more angular transmission functions. The one or more angular transmission functions define light transmission as a function of incident angle for the angular dependent filter, The angular dependent filter is configured to at least partially mitigate transmission of light for at least some incident angles above 40°. The angular dependent filter comprises a plurality of nanostructures, and the nanostructures of the plurality of nanostructures are arranged in an array with one or more sub-wavelength periods. The one or more angular transmission functions comprise at least two different angular transmission functions for different regions of the angular dependent filter.
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公开(公告)号：US11880070B2
公开(公告)日：2024-01-23
申请号：US15734509
申请日：2019-05-17
发明人： Toru Miura , Yoshiho Maeda , Hiroshi Fukuda
CPC分类号： G02B6/34 , G02B5/1809 , G02B5/1819 , G02B6/30
摘要： Plural grating couplers having grating conditions different from each other and plural optical waveguides respectively connected with the plural grating couplers are included. The plural grating couplers have the same arraying directions of gratings. Further, each of the plural grating couplers has a different grating interval as a grating condition. Further, plural reflection units respectively provided to the plural optical waveguides are included.
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公开(公告)号：US20230408727A1
公开(公告)日：2023-12-21
申请号：US18034956
申请日：2021-11-02
申请人： NIL Technology ApS
CPC分类号： G02B1/002 , G02B5/1809
摘要： An apparatus includes a folded optical path including optically reflective surfaces at least one of which includes an optical metasurface.
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公开(公告)号：US11815703B2
公开(公告)日：2023-11-14
申请号：US16665687
申请日：2019-10-28
发明人： Seunghoon Han , Suyeon Lee
CPC分类号： G02B3/0062 , G02B1/002 , G02B3/00 , G02B5/1809 , G02B5/1876 , G02B5/1895 , G02B13/0055 , G02B27/0056 , G02B2003/0093 , G02B2207/101
摘要： Provided is a meta-lens including a first region including a plurality of first nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of first nanostructures are provided based on a first rule, and a plurality of second regions surrounding the first region, each of the plurality of second regions including a plurality of second nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of second nanostructures are provided in each of the plurality of second regions based on a plurality of second rules, respectively, that are different from the first rule.
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公开(公告)号：US11796723B2
公开(公告)日：2023-10-24
申请号：US17199987
申请日：2021-03-12
发明人： Zong-Ru Tu
CPC分类号： G02B5/208 , G02B5/1809 , G02B5/1819
摘要： An optical device is provided. The optical device includes a plurality of IR-cut pixels, a plurality of IR-pass pixels, and a plurality of grids. The grids surround the IR-cut pixels and the IR-pass pixels. Each IR-cut pixel includes a first grating structure. A method for fabricating the optical device is also provided.
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