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公开(公告)号：US20240272447A1
公开(公告)日：2024-08-15
申请号：US18626489
申请日：2024-04-04
Applicant: Spectralics Ltd.
Inventor： Yuval KASHTER , Ran BAR-YOSEF , Eran FALEK
CPC classification number: G02B27/283 , G02B27/14 , G02B27/0101 , G02B2027/0194
Abstract: There is provided a layered combiner for manipulating optical polarization on toroid surfaces, e.g. for a head-up display applications comprising a Picture Generating Unit (“PGU”) the structure adapted to receive polarized light in p-polarization direction, from said PGU, said structure comprising a dielectric material further comprising: a first layer comprising a first wave-retarder, wherein the angle between the incidence angle and the optical axis of the wave-retarder satisfies a Brewster angle; a layer of PMLTC segments, wherein each of the segments acts as a Mangin mirror-type surface and a third layer comprising a second wave-retarder. The Mangin mirror-type surface is configured to modulate the reflection of incoming collimated light on the surface of the segment to provide a collimated wave front without toroidal aberration thereby providing an observer with an undistorted image.
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公开(公告)号：US12007559B2
公开(公告)日：2024-06-11
申请号：US17356818
申请日：2021-06-24
Applicant: Spectralics Ltd.
Inventor： Yuval Kashter , Eran Falek , Ran Abraham Bar-Yosef
CPC classification number: G02B27/0101 , G02B27/142 , G02B2027/0194
Abstract: A multi-layered thin combiner (MLTC) is provided herein. The MLTC may include: a plurality of connectable layers each having a separate active area coated with a primary partially reflective filter; wherein each active area comprises a discrete fraction of an effective aperture; and wherein the active areas are configured to align, when said connectable layers are connected, to collectively define a complete effective aperture.
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公开(公告)号：US20240411132A1
公开(公告)日：2024-12-12
申请号：US18810604
申请日：2024-08-21
Applicant: Spectralics Ltd.
Inventor： Yuval KASHTER , Eran FALEK , Ran Abraham BAR-YOSEF
Abstract: A layered structure for manipulating optical polarization for a head-up display application is provided herein. The layered structure includes: a Picture Generating Unit “PGU”, the structure adapted to receive polarized light oriented along a Transverse Magnetic “TM” polarization direction, from said PGU, said structure comprising: a first layer comprising a plano-convex lens, wherein the angle between the incidence angle and the optical axis of the plano-convex lens satisfies a Brewster angle; a first polarization manipulating layer adjoining said first layer and adapted to transform the polarization state of said polarized light; an optical partial reflective filter that is designed according to the polarization and reflectivity requirements; and a plano-concave lens, conjugated to the first plano-convex lens.
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公开(公告)号：US11703613B2
公开(公告)日：2023-07-18
申请号：US17483835
申请日：2021-09-24
Applicant: Spectralics Ltd.
Inventor： Eran Falek , Yuval Kashter , Ran Abraham Bar-Yosef
CPC classification number: G02B1/002 , G01M11/0228 , G02B5/20
Abstract: A method of synthesizing an effective refractive index metamaterial, the method may include the steps of: a) analysing an effective index material by directing an electromagnetic plane-wave towards a surface of the metamaterial and calculating the polarization currents distribution field in the metamaterial, wherein the effective refractive index metamaterial is comprised of a plurality of layers of at least a first material having a first refractive index and at least a second material having a second refractive index; b) filtering and sampling the polarization currents distribution field according to the layers, wherein the layers comprise pre-determined parameters requirements, the parameters including at least one of: refractive indexes of the first material and the second material, effective refractive index of the layer and thickness of the layer; and c) determining a layer arrangement and thickness for the first and second materials comprising the plurality of layers.
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公开(公告)号：US12081730B2
公开(公告)日：2024-09-03
申请号：US18591880
申请日：2024-02-29
Applicant: Spectralics Ltd.
Inventor： Yuval Kashter , Eran Falek , Ran Bar-Yosef
IPC: H04N13/383 , H04N13/32
CPC classification number: H04N13/383 , H04N13/32
Abstract: A Dynamic Parallel Monocular Projection (DPMP) system for the provision of dynamically adjusted images to a Head Motion Box (HMB) is provided herein. The DPMP may include a picture generation unit (PGU); a projection unit, further comprising a displaying unit and at least one optical modulator, a Multi-Layered Thin Combiner (MLTC), comprising an infra-red (IR) light source and an IR detection sensor, thereby enabling the provision of images adjusted to the individual location of the observer's eyes within the HMB.
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Patent Agency Ranking
公开(公告)号：US20240205384A1
公开(公告)日：2024-06-20
申请号：US18591880
申请日：2024-02-29
Applicant: Spectralics Ltd.
Inventor： Yuval KASHTER , Eran FALEK , Ran BAR-YOSEF
IPC: H04N13/383 , H04N13/32
CPC classification number: H04N13/383 , H04N13/32
Abstract: A Dynamic Parallel Monocular Projection (DPMP) system for the provision of dynamically adjusted images to a Head Motion Box (HMB) is provided herein. The DPMP may include a picture generation unit (PGU); a projection unit, further comprising a displaying unit and at least one optical modulator, a Multi-Layered Thin Combiner (MLTC), comprising an infra-red (IR) light source and an IR detection sensor, thereby enabling the provision of images adjusted to the individual location of the observer's eyes within the HMB.
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公开(公告)号：US11635670B2
公开(公告)日：2023-04-25
申请号：US17490609
申请日：2021-09-30
Applicant: Spectralics Ltd.
Inventor： Eran Falek , Yuval Kashter , Ran Abraham Bar-Yosef
Abstract: Described herein is a dynamic optical modulator including a plurality of pixels arranged in a grid, the pixels comprising a plurality of unit-cells, the unit-cell comprising a dielectric layer sandwiched between two at least partially conductive layers, wherein the optical characteristics of each of said unit-cells is controlled by the application of a voltage across each of the pixels of the plurality of pixels.
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公开(公告)号：US20240329393A1
公开(公告)日：2024-10-03
申请号：US18738263
申请日：2024-06-10
Applicant: Spectralics Ltd.
Inventor： Yuval KASHTER , Eran FALEK , Ran Abraham BAR-YOSEF
CPC classification number: G02B27/0101 , G02B27/142 , G02B2027/0194
Abstract: A multi-layered thin combiner (MLTC) is provided herein. The MLTC may include: a plurality of connectable layers each having a separate active area coated with a primary partially reflective filter, wherein each active area comprises a discrete fraction of an effective aperture; and wherein the active areas are configured to align, when said connectable layers are connected, to collectively define a complete effective aperture.
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公开(公告)号：US20220260753A1
公开(公告)日：2022-08-18
申请号：US17483835
申请日：2021-09-24
Applicant: Spectralics Ltd.
Inventor： Eran Falek , Yuval Kashter , Ran Abraham BAR-YOSEF
Abstract: A method of synthesizing an effective refractive index metamaterial, the method may include the steps of: a) analysing an effective index material by directing an electromagnetic plane-wave towards a surface of the metamaterial and calculating the polarization currents distribution field in the metamaterial, wherein the effective refractive index metamaterial is comprised of a plurality of layers of at least a first material having a first refractive index and at least a second material having a second refractive index; b) filtering and sampling the polarization currents distribution field according to the layers, wherein the layers comprise pre-determined parameters requirements, the parameters including at least one of: refractive indexes of the first material and the second material, effective refractive index of the layer and thickness of the layer; and c) determining a layer arrangement and thickness for the first and second materials comprising the plurality of layers.
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公开(公告)号：US20220019123A1
公开(公告)日：2022-01-20
申请号：US17490609
申请日：2021-09-30
Applicant: Spectralics Ltd.
Inventor： Eran FALEK , Yuval KASHTER , Ran Abraham BAR-YOSEF
Abstract: Described herein is a dynamic optical modulator including a plurality of pixels arranged in a grid, the pixels comprising a plurality of unit-cells, the unit-cell comprising a dielectric layer sandwiched between two at least partially conductive layers, wherein the optical characteristics of each of said unit-cells is controlled by the application of a voltage across each of the pixels of the plurality of pixels.
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