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公开(公告)号:US20240134157A1
公开(公告)日:2024-04-25
申请号:US18391957
申请日:2023-12-21
发明人: Hag Chul KIM , Hyuk Joo KIM , Kyu Min CHAE
CPC分类号: G02B13/0045 , G02B1/007 , G02B1/041 , G02B13/04 , G02B13/16 , G02B27/0025 , H04N23/55
摘要: An optical imaging system includes a first lens having negative refractive power, a second lens having negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first to seventh lenses are sequentially disposed from an object side toward an image side. The third lens and the seventh lens are formed of plastic, and the first lens, the second lens, the fourth lens, the fifth lens, and the sixth lens are formed of glass.
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公开(公告)号:US20230324592A1
公开(公告)日:2023-10-12
申请号:US18312831
申请日:2023-05-05
申请人: VIAVI Solutions Inc.
CPC分类号: G02B5/208 , G02B1/115 , G02B1/007 , C23C14/34 , C23C28/345 , C23C14/083 , C23C14/0694 , C23C14/10 , C23C14/081 , G02B5/20
摘要: An optical filter may include a set of optical filter layers disposed onto a substrate. The set of optical filter layers may include a first subset of optical filter layers comprising a first material with a first refractive index. The first material may comprise at least silicon and hydrogen. The set of optical filter layers may include a second subset of optical filter layers comprising a second material with a second refractive index. The second material is different from the first material and the second refractive index is less than the first refractive index. The set of optical filter layers may include a third subset of optical filter layers comprising a third material different from the first material and the second material.
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公开(公告)号:US20190041617A1
公开(公告)日:2019-02-07
申请号:US15668217
申请日:2017-08-03
发明人: Kyu-Tae Lee , Debasish Banerjee
CPC分类号: G02B17/008 , G02B1/007 , G02B5/04 , G02B27/0012 , G02B27/0972 , G02B27/126
摘要: A cloaking device includes an object-side, an image-side, a cloaked region and eight prisms positioned around the cloaked region. Each of the prisms has a light entrance side, a light exit side, a vertex formed from the intersection of a plane defined by the light entrance side and a plane defined by the light exit side, and a vertex angle between the light entrance side and the light exit side. A pair of first object-side prisms with inward facing vertices and a pair of second object-side prisms with outward facing vertices are positioned on the object-side, and a pair of first image-side prisms with outward facing vertices and a pair of second image-side prisms with inward facing vertices are positioned on the image-side. The light entrance sides of the pair of second object-side prisms are parallel and spaced apart from the light exit sides of the pair of first object-side prisms.
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公开(公告)号:US20180274750A1
公开(公告)日:2018-09-27
申请号:US15922770
申请日:2018-03-15
申请人: Steve Byrnes , Francesco Aieta , Federico Capasso , Alan Lenef
发明人: Steve Byrnes , Francesco Aieta , Federico Capasso , Alan Lenef
IPC分类号: F21V5/04 , G02B1/00 , B82Y20/00 , G02B5/18 , H01Q15/00 , G02B27/30 , G02B19/00 , F21V5/00 , F21K9/64
CPC分类号: B82Y20/00 , F21K9/64 , F21V5/002 , F21V5/045 , F21V5/046 , F21Y2101/00 , G02B1/002 , G02B1/005 , G02B1/007 , G02B5/1809 , G02B5/1876 , G02B19/0014 , G02B19/0052 , G02B27/30 , G02B2207/101 , H01Q15/0086
摘要: Metalenses and technologies incorporating the same are disclosed. In some embodiments, the metalenses are in the form of a hybrid multiregion collimating metalens that includes a first region and a second region, wherein the hybrid multiregion collimating metalens is configured to collimate (e.g., visible) light incident thereon. In some instances the first region includes an array of first unit cells that contain subwavelength spaced nanostructures, such that the first region functions as a subwavelength high contrast grating (SWHCG), whereas the second region includes an array of second unit cell, wherein the array of second unit cells includes a near periodic annular arrangement of nanostructures such that the second region approximates the functionality of a locally periodic radial diffraction grating. Lighting devices including such metalenses are also disclosed.
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公开(公告)号:US09971063B2
公开(公告)日:2018-05-15
申请号:US12688656
申请日:2010-01-15
申请人: David R. Smith , Ruopeng Liu , Qiang Cheng , Yao Qin , Tie Jun Cui
发明人: David R. Smith , Ruopeng Liu , Qiang Cheng , Yao Qin , Tie Jun Cui
摘要: Broadband metamaterial apparatus, methods, systems, and computer readable media are disclosed, as well as exemplary embodiments that provide cloaking, beam steering, and beam focusing. In one exemplary implementation, a broadband interface structure has a front surface region and a back surface region. The broadband interface structure is arranged to provide electromagnetic energy characteristic of an apparent profile of the back surface region substantially different than an actual profile of the back surface region for electromagnetic energy received at the front surface region.
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公开(公告)号:US20180059362A1
公开(公告)日:2018-03-01
申请号:US15600860
申请日:2017-05-22
发明人: Ching-Chung Yeh
CPC分类号: G02B9/64 , G02B1/007 , G02B1/041 , G02B13/0045 , G02B13/006 , G02B27/0012 , G02B27/0025
摘要: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power and includes a convex surface facing the object side. The second lens is with negative refractive power and includes a concave surface facing the object side. The third lens is with positive refractive power and includes a convex surface facing the image side. The fourth lens is with positive refractive power. The fifth lens is with positive refractive power. The sixth lens is with negative refractive power. The seventh lens is with refractive power.
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公开(公告)号:US20180052261A1
公开(公告)日:2018-02-22
申请号:US15239925
申请日:2016-08-18
申请人: The Boeing Company
发明人: Tai A. LAM
CPC分类号: G02B5/0858 , G02B1/002 , G02B1/005 , G02B1/007 , G02B5/0284 , G02B5/0294 , G02B5/0816 , G02B5/0825 , G02B5/085 , G02B5/282 , G02B5/288
摘要: A protective material that includes a dielectric mirror having at least one layer, each layer of the dielectric mirror being configured to reflect at least a portion of incident energy of a predetermined wavelength; and a photonic, crystal array of periodic structures disposed within the dielectric mirror, the photonic crystal array of periodic structures being configured to disperse non-reflected incident energy of the predetermined wavelength transmitted through the dielectric mirror across the photonic crystal array of periodic structures in a direction parallel to a plane of the dielectric mirror.
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公开(公告)号:US20180031354A1
公开(公告)日:2018-02-01
申请号:US15620683
申请日:2017-06-12
发明人: John Pendry , David Smith , David Schurig
摘要: A method of constructing a concealing volume comprises constructing a plurality of concealing volume elements around a concealable volume. Each concealing volume element has a material parameter arranged to direct a propagating wave around the concealable volume. The material parameter can be refractive index, electrical permittivity, and magnetic permittivity. The concealing volume can be a metamaterial. The concealing volume diverts incoming propagating waves such that outgoing propagating waves appear to be unperturbed to an observer.
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公开(公告)号:US09677856B2
公开(公告)日:2017-06-13
申请号:US11459728
申请日:2006-07-25
申请人: John Pendry , David Smith , David Schurig
发明人: John Pendry , David Smith , David Schurig
摘要: A method of constructing a concealing volume comprises constructing a plurality of concealing volume elements around a concealable volume. Each concealing volume element has a material parameter arranged to direct a propagating wave around the concealable volume. The material parameter can be refractive index, electrical permittivity and magnetic permittivity. The concealing volume can be a metamaterial. The concealing volume diverts incoming propagating waves such that outgoing propagating waves appear to be unperturbed to an observer.
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公开(公告)号:US09664817B1
公开(公告)日:2017-05-30
申请号:US13605184
申请日:2012-09-06
申请人: Andrea Di Falco
发明人: Andrea Di Falco
CPC分类号: G02B1/002 , A61F2/1613 , G02B1/007 , G02C7/022 , G02C7/049
摘要: A contact lens or visual prosthesis that includes at least one array or distribution of optical elements on a flexible substrate, the optical elements in the array or distribution being separated by or having a periodicity of less than 1 micron and each element having a dimension of 1 micron or less.
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