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公开(公告)号：US11370358B2
公开(公告)日：2022-06-28
申请号：US15959789
申请日：2018-04-23
发明人： Kyu-Tae Lee , Songtao Wu , Debasish Banerjee
摘要： A cloaking device comprises an object-side, an image-side, a cloaked region between the object-side and the image-side. An object-side optical component and an object-side tilt correction (TC) component are positioned on the object-side, and an image-side optical component and an image-side TC component are positioned on the image-side. The cloaking device is tilted relative to an object positioned on the object-side such that light from the object is incident on the cloaking device at an acute angle. The object-side TC component redirects light from the object incident on the cloaking device such that the light propagates through the cloaking device generally normal to the object-side and image-side optical components. The image-side TC component redirects light propagating through the cloaking device back to normal to the object to form an image of the object on the image-side of the cloaking device which, if not for the TC components, would be distorted.
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2.发明授权公开(公告)号：US10953797B2
公开(公告)日：2021-03-23
申请号：US15946065
申请日：2018-04-05
发明人： Kyu-Tae Lee , Mindy Zhang , Debasish Banerjee , Songtao Wu
摘要： A cloaking device with an object-side, an image-side, and a cloaked region is provided. A first object-side converging lens and a second object-side converging lens are positioned on the object-side, and a first image-side converging lens and a second image-side converging lens are positioned on the image-side. A coherent image guide with an object-side end optically aligned with the second object-side converging lens and an image-side end optically aligned with the second image-side converging lens is included. Light from an object positioned on the object-side of the cloaking device is focused in parallel onto the object-side end of the coherent image guide by the first object-side converging lens and the second object-side converging lens, propagates through the coherent image guide, and is focused in parallel by the second image-side converging lens and the first image-side converging lens to form an image of the object on the image-side of the cloaking device.
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公开(公告)号：US10663628B1
公开(公告)日：2020-05-26
申请号：US16005153
申请日：2018-06-11
发明人： Chengang Ji , Kyu-Tae Lee , Debasish Banerjee
IPC分类号： G02B3/08 , G02B1/04 , F24S23/30 , H01L31/054
摘要： A cloaking device includes an object-side, an image-side, a cloaked region between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side. A plurality of object-side Fresnel mirrors, a plurality of image-side Fresnel mirrors and a planar reflection boundary positioned between the plurality of object-side Fresnel mirrors and the plurality of image-side Fresnel mirrors are included. Each of the Fresnel mirrors comprises an outward facing reflection surface. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region by the plurality of object-side Fresnel mirrors, the planar reflection boundary and the plurality of image-side Fresnel mirrors to form an image of the object on the image-side of the cloaking device such that the light from the object appears to pass through the cloaked region.
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公开(公告)号：US20190322218A1
公开(公告)日：2019-10-24
申请号：US15959789
申请日：2018-04-23
发明人： Kyu-Tae Lee , Songtao Wu , Debasish Banerjee
摘要： A cloaking device comprises an object-side, an image-side, a cloaked region between the object-side and the image-side. An object-side optical component and an object-side tilt correction (TC) component are positioned on the object-side, and an image-side optical component and an image-side TC component are positioned on the image-side. The cloaking device is tilted relative to an object positioned on the object-side such that light from the object is incident on the cloaking device at an acute angle. The object-side TC component redirects light from the object incident on the cloaking device such that the light propagates through the cloaking device generally normal to the object-side and image-side optical components. The image-side TC component redirects light propagating through the cloaking device back to normal to the object to form an image of the object on the image-side of the cloaking device which, if not for the TC components, would be distorted.
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5.发明申请公开(公告)号：US20190210527A1
公开(公告)日：2019-07-11
申请号：US15863353
申请日：2018-01-05
发明人： Chengang Ji , Kyu-Tae Lee , Debasish Banerjee
摘要： A cloaking device includes an object-side, an image-side and a cloaked region between the object side and image-side. An object-side half Fresnel lens, an image-side half Fresnel lens and a planar reflection boundary positioned between the object-side half Fresnel lens and the image-side half Fresnel lens are included. The object-side half Fresnel lens and the image-side half Fresnel lens each comprise an inward facing surface and an outward facing Fresnel surface. The planar reflection boundary comprises an inward facing mirror surface. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region by the object-side half Fresnel lens, planar reflection boundary and image-side half Fresnel lens to form an image of the object on the image-side of the cloaking device such that the light from the object appears to pass through the cloaked region.
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公开(公告)号：US20190025488A1
公开(公告)日：2019-01-24
申请号：US16144279
申请日：2018-09-27
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , The Regents of the University of Michigan
发明人： Debasish Banerjee , Lingjie Jay Guo , Kyu-Tae Lee
IPC分类号： G02B5/30
摘要： A wire-grip polarizer (“WGP”), and a panel having said WGP is provided. The WGP is mounted on an absorption layer. The absorption layer is mounted on a substrate. The substrate is brightly colored. The WGP includes a plurality of gratings formed of a metallic element. Each of the gratings is spaced apart from the other so as to form a waveguide. The WGP is configured to transmit S-Polarized light and reflect P-polarized light. The A thin film layer may be disposed on each of the metallic gratings. The thin film layer is configured to generate a resonance so as to modify the reflectivity of P-polarized light so as to reduce veiling glare and maintain the brightness of the substrate.
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公开(公告)号：US10908339B2
公开(公告)日：2021-02-02
申请号：US16144279
申请日：2018-09-27
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , The Regents of the University of Michigan
发明人： Debasish Banerjee , Lingjie Jay Guo , Kyu-Tae Lee
IPC分类号： G02B5/30
摘要： A wire-grip polarizer (“WGP”), and a panel having said WGP is provided. The WGP is mounted on an absorption layer. The absorption layer is mounted on a substrate. The substrate is brightly colored. The WGP includes a plurality of gratings formed of a metallic element. Each of the gratings is spaced apart from the other so as to form a waveguide. The WGP is configured to transmit S-Polarized light and reflect P-polarized light. The A thin film layer may be disposed on each of the metallic gratings. The thin film layer is configured to generate a resonance so as to modify the reflectivity of P-polarized light so as to reduce veiling glare and maintain the brightness of the substrate.
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公开(公告)号：US20200150321A1
公开(公告)日：2020-05-14
申请号：US16005153
申请日：2018-06-11
发明人： Chengang Ji , Kyu-Tae Lee , Debasish Banerjee
摘要： A cloaking device includes an object-side, an image-side, a cloaked region between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side. A plurality of object-side Fresnel mirrors, a plurality of image-side Fresnel mirrors and a planar reflection boundary positioned between the plurality of object-side Fresnel mirrors and the plurality of image-side Fresnel mirrors are included. Each of the Fresnel mirrors comprises an outward facing reflection surface. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region by the plurality of object-side Fresnel mirrors, the planar reflection boundary and the plurality of image-side Fresnel mirrors to form an image of the object on the image-side of the cloaking device such that the light from the object appears to pass through the cloaked region.
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公开(公告)号：US10479276B2
公开(公告)日：2019-11-19
申请号：US15945398
申请日：2018-04-04
发明人： Chengang Ji , Kyu-Tae Lee , Songtao Wu , Debasish Banerjee
摘要： A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.
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公开(公告)号：US10444480B2
公开(公告)日：2019-10-15
申请号：US15668217
申请日：2017-08-03
发明人： Kyu-Tae Lee , Debasish Banerjee
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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