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公开(公告)号：US20190113777A1
公开(公告)日：2019-04-18
申请号：US16169717
申请日：2018-10-24
Applicant: Beam Engineering for Advanced Measurements Co. , U.S. Government as Represented by the Secretary of the Army
Inventor： Nelson Tabirian , Svetlana Serak , Diane Steeves , Brian Kimball
IPC: G02F1/01 , G02F1/1337 , G02F1/1343 , G02F1/1333
CPC classification number: G02F1/0136 , G02F1/133365 , G02F1/133788 , G02F1/134309
Abstract: The invention provides for lenses fabricated as planar thin film coatings with continuous structure. The lensing action is due to optical axis orientation modulation in the plane of the lens. The lenses of the current invention are fabricated using photoalignment of a liquid crystal polymer wherein the polarization pattern of radiation used for photoalignment is obtained by propagating the light through an optical system comprising a shape-variant nonlinear spatial light polarization modulators.
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公开(公告)号：US10075625B2
公开(公告)日：2018-09-11
申请号：US14324126
申请日：2014-07-04
Inventor： Nelson Tabirian , James Hunt
CPC classification number: H04N5/2256 , H04N7/183 , H04N17/002
Abstract: Method for jamming or affecting the quality of photo and video recording, the method comprising illuminating the area, collecting light reflected or scattered from optical components such as camera lenses, amplifying them, and reversing the amplified beams back to the camera with phase conjugating mirror. The method may further comprise image acquisition and processing for identifying unwanted optical components and sensors, and electronically pointing and focusing a laser beam on said components and sensors.
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公开(公告)号：US20180063389A9
公开(公告)日：2018-03-01
申请号：US14324126
申请日：2014-07-04
Inventor： Nelson Tabirian , James Hunt
CPC classification number: H04N5/2256 , H04N7/183 , H04N17/002
Abstract: Method for jamming or affecting the quality of photo and video recording, the method comprising illuminating the area, collecting light reflected or scattered from optical components such as camera lenses, amplifying them, and reversing the amplified beams back to the camera with phase conjugating mirror. The method may further comprise image acquisition and processing for identifying unwanted optical components and sensors, and electronically pointing and focusing a laser beam on said components and sensors.
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4.发明申请公开(公告)号：US20150248041A1
公开(公告)日：2015-09-03
申请号：US14194808
申请日：2014-03-02
Inventor： Nelson Tabirian
IPC: G02F1/1337
CPC classification number: G02F1/133784 , G02B5/3016 , G02B5/3083
Abstract: Cycloidal boundary conditions for aligning liquid crystalline materials are obtained by mechanical rubbing of a polymer coating. The rubbing is performed by a rubbing head rotating around an axis perpendicular to the rubbing plane while the alignment polymer film is being translated across the rubbing film such as only a linear portion of the alignment film touches the rubbing film at any given time.
Abstract translation: 通过机械摩擦聚合物涂层获得用于对准液晶材料的环状边界条件。 通过在垂直于摩擦平面的轴线上旋转的摩擦头进行摩擦，同时定向聚合物膜在摩擦膜上平移，例如在任何给定时间只有取向膜的直线部分接触摩擦膜。
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公开(公告)号：US10802302B2
公开(公告)日：2020-10-13
申请号：US16169717
申请日：2018-10-24
Applicant: Beam Engineering for Advanced Measurements Co. , U.S. Government as Represented by the Secretary of the Army
Inventor： Nelson Tabirian , Svetlana Serak , Diane Steeves , Brian Kimball
IPC: G02F1/1333 , G02F1/01 , G02F1/1337 , G02F1/1343
Abstract: The invention provides for lenses fabricated as planar thin film coatings with continuous structure. The lensing action is due to optical axis orientation modulation in the plane of the lens. The lenses of the current invention are fabricated using photoalignment of a liquid crystal polymer wherein the polarization pattern of radiation used for photoalignment is obtained by propagating the light through an optical system comprising a shape-variant nonlinear spatial light polarization modulators.
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Patent Agency Ranking
公开(公告)号：US10107945B2
公开(公告)日：2018-10-23
申请号：US14193027
申请日：2014-02-28
Inventor： Nelson Tabirian , Sarik Nersisyan
Abstract: Method for fabrication of vector vortex waveplates of improved quality due to reduced singularity size and widened spectral band, the method comprising creating a boundary condition for vortex orientation pattern of a liquid crystal polymer on a substrate using materials with reversible photoalignment, equalizing exposure energy over the area of the waveplate by redistributing the energy of radiation used for photoalignment from the center of the beam to its peripheries, and using vector vortex waveplate as a linear-to-axial polarization converter. Fabrication of spectrally broadband vector vortex waveplates further comprises two or more liquid crystal polymer layers with opposite sign of twist.
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公开(公告)号：US20170230555A1
公开(公告)日：2017-08-10
申请号：US14324126
申请日：2014-07-04
Inventor： Nelson Tabirian , James Hunt
CPC classification number: H04N5/2256 , H04N7/183 , H04N17/002
Abstract: Method for jamming or affecting the quality of photo and video recording, the method comprising illuminating the area, collecting light reflected or scattered from optical components such as camera lenses, amplifying them, and reversing the amplified beams back to the camera with phase conjugating mirror. The method may further comprise image acquisition and processing for identifying unwanted optical components and sensors, and electronically pointing and focusing a laser beam on said components and sensors.
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公开(公告)号：US20200150324A1
公开(公告)日：2020-05-14
申请号：US16746366
申请日：2020-01-17
Inventor： Nelson Tabirian , David E. Roberts , Sarik Nersisyan , Olena Uskova , Anna Tabirian
IPC: G02B5/18 , G02B27/42 , G02B3/00 , G02B6/35 , G02B6/024 , G02B5/00 , G02B5/30 , A61F2/16 , G02C7/08 , G02B3/10 , G02C7/12 , G02C7/06 , G02C7/02
Abstract: Optical beam steering and focusing systems, devices, and methods that utilize diffractive waveplates are improved to produce high efficiency at large beam deflection angles, particularly around normal incidence, by diffractive waveplate architectures comprising a special combination of liquid crystal polymer diffractive waveplate both layers with internal twisted structure and at a layer with uniform structure.
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公开(公告)号：US10185182B2
公开(公告)日：2019-01-22
申请号：US14194808
申请日：2014-03-02
Inventor： Nelson Tabirian
IPC: G02F1/1337 , G02B5/30
Abstract: Cycloidal boundary conditions for aligning liquid crystalline materials are obtained by mechanical rubbing of a polymer coating. The rubbing is performed by a rubbing head rotating around an axis perpendicular to the rubbing plane while the alignment polymer film is being translated across the rubbing film such as only a linear portion of the alignment film touches the rubbing film at any given time.
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公开(公告)号：US12111557B1
公开(公告)日：2024-10-08
申请号：US18217853
申请日：2023-07-03
Applicant: Beam Engineering for Advanced Measurements Co. , Defense Advanced Research Projects Agency
Inventor： Robert Winsor , Paul Calhoun , David Roberts , Nelson Tabirian
CPC classification number: G02F1/292 , H01S3/0071
Abstract: Opto-mechanical assemblies, systems, devices and methods for pointing laser and other optical beams, and for directing the field of view of sensors are disclosed. The assemblies consist of thin rotating optical elements of a type that diffracts the optical beam over a wide field of regard in two dimensions, and the angle of incidence of the optical beam or line of sight impinging on the optical elements are dynamically controlled maximizing the diffraction efficiency of the optical elements.
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