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公开(公告)号：US11506604B2
公开(公告)日：2022-11-22
申请号：US17013696
申请日：2020-09-07
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky , Moshe Sinvani , Meir Danino , Hadar Pinhas , Omer Wagner , Yossef Danan
Abstract: Disclosed herein is a super resolution imaging method and system for obtaining an image in a crystal material and/or device.
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公开(公告)号：US20220125286A1
公开(公告)日：2022-04-28
申请号：US17569555
申请日：2022-01-06
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky , Asaf Shahmoon , Hamutal Slovin
Abstract: The present invention provides a system for imaging an object comprising: an optical imaging unit for imaging an object on a detection array, the optical imaging unit defining an optical axis and comprising a multicore fiber configured to collect light from the object at an input edge of the multicore fiber and transfer collected light to an output edge of the multicore fiber; a displacing unit configured to shift the input edge of the multicore fiber relatively to the object in a plane substantially perpendicular to the optical axis to obtain a set of shifted images of the object; and an operating unit configured to operate the displacing unit by setting a shifting amplitude to either a first amplitude inferior or equal to the diameter of a core of the multicore fiber or a second amplitude superior or equal to the diameter of the multicore fiber.
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公开(公告)号：US10914633B2
公开(公告)日：2021-02-09
申请号：US16294113
申请日：2019-03-06
Applicant: B. G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY , BAR ILAN UNIVERSITY
Inventor： Dan Sadot , Zeev Zalevsky , Tomer Yeminy , Sagie Asraf
Abstract: Disclosed are a method for achieving ultrahigh spectral resolution and a photonic spectral processor, which is designed to carry out the method. The disclosed photonic spectral processor overcomes the current 0.8 GHz spectral resolution limitation. The new spectral processor uses a Fabry-Perot interferometer array located before the dispersive element of the system, thus significantly improving the spectral separation resolution, which is now limited by the full width at half maximum of the Fabry-Perot interferometer rather than the spectral resolution of the dispersive element spectral as is the current situation. A proof of concept experiment utilizing two Fabry-Perot interferometers and a diffractive optical grating with spectral resolution of 6.45 GHz achieving high spectral resolution of 577 MHz is described.
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4.发明申请SPECTRAL AND TEMPORAL STEALTHY FIBER OPTIC COMMUNICATION USING SAMPLING AND PHASE ENCODING DETECTION SYSTEM 有权使用采样和相位编码检测系统的光谱和时间光纤通信公开(公告)号：US20140146969A1
公开(公告)日：2014-05-29
申请号：US14232655
申请日：2012-07-17
Applicant: BAR-ILAN UNIVERSITY , BEN-GURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITY
Inventor： Dan Sadot , Zeev Zalevsky , Tomer Yeminy
CPC classification number: H04L9/0852 , H04B10/85 , H04K1/006 , H04K1/04
Abstract: A method for providing spectral and temporal stealthy information transmitted over an optical communication channel, according to which, at the transmitting side, the power spectral density of a pulse sequence bearing the information is reduced by encrypting the temporal phase of the pulse sequence. The power of the pulse sequence is spread in the frequency domain, to be below the noise level, by sampling the pulse sequence. Spectral phase encoding is used to temporally spread the pulse sequence and to prevent coherent addition of its spectral replicas in frequency domain. The resulting signal, encrypted both in time and frequency domains, is then transmitted. Spectral phase decoding is performed at the receiving side by performing coherent detection and folding all the spectral replicas of the transmitted signal to the baseband by means of sampling. The temporal phase of the signal is decrypted and the information which is delivered by the pulse sequence is decoded.
Abstract translation: 一种用于提供通过光通信信道发送的频谱和时间隐形信息的方法，根据该方法，在发送侧，通过加密脉冲序列的时间相位来减少携带信息的脉冲序列的功率谱密度。 通过采样脉冲序列，脉冲序列的功率在频域中扩展，低于噪声电平。 频谱相位编码用于时间扩展脉冲序列，并防止其频域中的频谱复制的相干相加。 随后发送在时域和频域加密的结果信号。 通过执行相干检测并通过采样将发射信号的所有光谱复制品折叠到基带，在接收侧执行光谱相位解码。 信号的时间相位被解密，并且由脉冲序列传送的信息被解码。
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公开(公告)号：US11977148B2
公开(公告)日：2024-05-07
申请号：US17051275
申请日：2019-04-30
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky , Nisim Nisan Ozana
CPC classification number: G01S13/88 , A61B5/0015 , A61B5/024 , A61B5/0507 , A61B5/08 , A61B5/7246 , G01S7/415 , G01S13/10 , G01S13/505
Abstract: A system and corresponding method are described. The system comprises an RF transmission unit comprising an arrangement of one or more transmission antenna elements configured for transmitting radiation in one or more elected frequency ranges toward an inspection region; RF collection unit comprising one or more collection antenna elements configured for receiving radiation in said one or more frequency ranges from at least a portion of said inspection region; and a control system. The control system is configured for receiving and processing data on collected RF signals from the RF collection unit for determining one or more parameters on a at least one object located in said inspection region.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11129544B2
公开(公告)日：2021-09-28
申请号：US16548037
申请日：2019-08-22
Applicant: BAR ILAN UNIVERSITY , UNIVERSITAT DE VALENCIA
Inventor： Zeev Zalevsky , Javier Garcia , Vicente Mico , Michael Belkin , Yevgeny Beiderman , Israel Margalit
IPC: A61B5/1455 , A61B5/00 , A61B5/08 , A61B5/02 , A61B5/0205 , A61B5/0215 , A61B5/1459 , A61B5/145 , A61B3/00 , A61B3/10 , A61B3/16 , A61B5/01 , A61B5/024 , A61B5/026 , A61B5/0295 , A61B5/021
Abstract: A system and method are presented for use in monitoring one or more conditions of a subject's body. The system includes a control unit which includes an input port for receiving image data, a memory utility, and a processor utility. The image data is indicative of data measured by a pixel detector array and is in the form of a sequence of speckle patterns generated by a portion of the subject's body in response to illumination thereof by coherent light according to a certain sampling time pattern. The memory utility stores one or more predetermined models, the model comprising data indicative of a relation between one or more measurable parameters and one or more conditions of the subject's body. The processor utility is configured and operable for processing the image data to determine one or more corresponding body conditions; and generating output data indicative of the corresponding body conditions.
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7.发明授权公开(公告)号：US09954620B2
公开(公告)日：2018-04-24
申请号：US15514762
申请日：2015-10-01
Applicant: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY , BAR-ILAN UNIVERSITY
Inventor： Dan Sadot , Zeev Zalevsky , Tomer Yeminy
IPC: H04B10/61 , H04B10/516 , H04B10/54 , H04B10/556 , H04L25/03
CPC classification number: H04B10/615 , H04B10/291 , H04B10/5161 , H04B10/54 , H04B10/541 , H04B10/548 , H04B10/5561 , H04B10/612 , H04B2210/516 , H04L25/03165
Abstract: A method for performing optical constellation conversion, according to which each received symbol from a constellation of input symbols is optically split into M components and each component is multiplied by a first predetermined different complex weighing factor, to achieve M firstly weighted components with different amplitudes. Then a nonlinear processor optically performs a nonlinear transform on each M firstly weighted components, so as to obtain M outputs which are linearly independent, Finally, a linear processor optically performs a linear transform to obtain a new converted constellation by optically multiplying, in the complex plane, each of the M outputs by a second predetermined different complex weighing factor, to achieve M secondly weighted components and then summing the M secondly weighted components.
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公开(公告)号：US09513225B2
公开(公告)日：2016-12-06
申请号：US14378710
申请日：2013-02-11
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky , Yair Hammer
CPC classification number: G01N21/65 , G01N2201/06113 , G01N2201/126
Abstract: The present disclosure provides systems and methods for improving the resolution of a spectrometer configured to provide a frequency spectrum of a radiation incoming from a sample. The system comprises an optical medium configured so that the radiation incoming from the sample be transferred through the optical medium, the optical medium having a predetermined tunable spectral transmission curve; an operating unit connectable to the optical medium and configured to operate the optical medium so as to shift the spectral transmission curve of the optical medium over a predetermined spectral range; and a processing unit connectable to the spectrometer and configured to process a set of shifted frequency spectra provided by the spectrometer and obtainable by transferring the radiation incoming from the sample through the optical medium while shifting the spectral transmission curve of the optical medium so as to obtain a super resolved frequency spectrum of improved spectral resolution.
Abstract translation: 本公开提供了用于改进配置为提供从样品进入的辐射的频谱的光谱仪的分辨率的系统和方法。 该系统包括光学介质，其被配置为使得从样品入射的辐射通过光学介质传输，光学介质具有预定的可调谐光谱透射曲线; 操作单元，其可连接到所述光学介质并且被配置为操作所述光学介质，以便使光学介质的光谱传输曲线在预定的光谱范围内移动; 以及处理单元，其可连接到所述光谱仪并且被配置为处理由所述光谱仪提供的一组移动的频谱，并且可以通过在移动所述光学介质的光谱透射曲线的同时转移通过所述光学介质从所述样品入射的辐射而获得， 一种改进的光谱分辨率的超解析频谱。
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公开(公告)号：US20250073079A1
公开(公告)日：2025-03-06
申请号：US18952202
申请日：2024-11-19
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky , Jean Paul Lellouche , David Smadja , Yifat Harel , Rivka Ben Ishay
Abstract: A system, technique and material composition for use in correction of eye condition are disclosed. The system comprising a processing utility and an etching utility. The processing utility comprises: correction pattern module configured for providing a selected two-dimensional pattern in according with input data indicative of vision impermanent of a user, and for generating operational instructions for forming said selected two-dimensional pattern on the surface of the cornea by said etching utility. The etching utility is configured to etching the selected patter on surface of the cornea of a user. The material composition comprises aqueous solution comprising a plurality of nanoparticles, said nanoparticles comprising maghemite nanoparticles wrapped by biocompatible protein chains. The material composition may be used as eye drops thereby allowing the nanoparticles to occupy etched region on the cornea, thereby maintaining correction of eye condition.
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公开(公告)号：US11867625B2
公开(公告)日：2024-01-09
申请号：US17427800
申请日：2020-01-30
Applicant: BAR ILAN UNIVERSITY
Inventor： Zeev Zalevsky
IPC: G01N21/47
CPC classification number: G01N21/47
Abstract: A system for use in imaging through diffusive media is presented. The system comprising: an imaging unit comprising light source unit comprising light source(s) providing coherent illumination with selected wavelength range, and a spatial light modulator configured for selectively varying spatial pattern of wavefront of light generated by the light source(s); a collection unit comprising detector array(s) and located next to said light source unit for collecting light reflected from a sample illuminated by said light source unit. And a control system comprising processing unit(s) and connected to said light source unit and said collection unit, said control system is configured for selectively varying spatial pattern of wavefront of light generated by the light source(s) in accordance with spatial pattern of light collected by said detector array(s) of the collection unit to satisfy a reflectance condition indicative of relation between wavefront spatial pattern and collected light spatial pattern.
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