Patents by Inventor Alex Zlotnik
Alex Zlotnik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20160139424Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: November 13, 2014Publication date: May 19, 2016Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Publication number: 20160022119Abstract: Endoscopes, multicore endoscope fibers and configuration and operation methods are provided. The fibers may have hundreds or thousands of cores and possibly incorporate working channel(s) and additional fibers. The fiber may be used at different optical configurations to capture images of tissue and objects at the distal tip and to enhance a wide range of optical characteristics of the images such as resolution, field of view, depth of field, wavelength ranges etc. Near-field imaging as well as far-field imaging may be implemented in the endoscopes and the respective optical features may be utilized to optimize imaging. Optical elements may be used at the distal fiber tip, or the distal fiber tip may be lens-less. Diagnostics and optical treatment feedback loops may be implemented and illumination may be adapted to yield full color images, depth estimation, enhanced field of views and/or depths of field, and additional diagnostic data.Type: ApplicationFiled: July 22, 2015Publication date: January 28, 2016Inventors: Asaf SHAHMOON, Alex Zlotnik, Zeev Zalevsky, Sigal Kremer-Tal, David Zigdon
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Patent number: 9239471Abstract: An imaging lens structure and method of imaging are presented. The imaging lens structure comprising a lens region defining an effective aperture of the lens structure. The lens region comprises an arrangement of lens zones distributed within the lens region and comprising zones of at least two different optical functions differently affecting light passing therethrough. The zones of at least two different optical functions are arranged in an interlaced fashion along said lens region corresponding to a surface relief of the lens region such that adjacent lens zones of different optical functions are spaced apart from one another along an optical axis of the lens structure a distance larger than a coherence length of light at least one spectral range for which said lens structure is designed.Type: GrantFiled: February 9, 2011Date of Patent: January 19, 2016Assignee: Brien Holden Vision InstituteInventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
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Publication number: 20150370066Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh, Shai Ben-Yaish, Ofer Limon, Oren Yehezkel, Karen Lahav
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Publication number: 20150286067Abstract: A method is provided for use in reducing a size of halo effect in an ophthalmic lens. The method comprises: providing data indicative of a given ophthalmic lens with a first pattern providing prescribed vision improvement, processing said data indicative of the features of the first pattern and generating data indicative of a variation of at least one feature of the first pattern resulting in a second pattern which maintains said prescribed vision improvement and reduces a size of halo effect as compared to that of the lens with the first pattern.Type: ApplicationFiled: December 20, 2012Publication date: October 8, 2015Inventors: Ofer Limon, Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish
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Patent number: 9134543Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: GrantFiled: February 9, 2011Date of Patent: September 15, 2015Assignee: Brien Holden Vision InstituteInventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh, Shai Ben-Yaish, Ofer Limon, Oren Yehezkel, Karen Lahav
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Publication number: 20150198819Abstract: An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.Type: ApplicationFiled: January 7, 2015Publication date: July 16, 2015Inventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
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Publication number: 20150070766Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: November 13, 2014Publication date: March 12, 2015Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Patent number: 8955968Abstract: An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.Type: GrantFiled: February 9, 2011Date of Patent: February 17, 2015Assignee: Brien Holden Vision InstituteInventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
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Patent number: 8913331Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: GrantFiled: August 20, 2013Date of Patent: December 16, 2014Assignee: Brien Holden Vision InstituteInventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Publication number: 20140029102Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: August 20, 2013Publication date: January 30, 2014Applicant: Xceed Imaging Ltd.Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Patent number: 8531783Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: GrantFiled: May 17, 2010Date of Patent: September 10, 2013Assignee: Xceed Imaging Ltd.Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Publication number: 20130044289Abstract: An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.Type: ApplicationFiled: February 9, 2011Publication date: February 21, 2013Inventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
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Publication number: 20130046381Abstract: An imaging lens structure and method of imaging are presented. The imaging lens structure comprising a lens region defining an effective aperture of the lens structure. The lens region comprises an arrangement of lens zones distributed within the lens region and comprising zones of at least two different optical functions differently affecting light passing therethrough. The zones of at least two different optical functions are arranged in an interlaced fashion along said lens region corresponding to a surface relief of the lens region such that adjacent lens zones of different optical functions are spaced apart from one another along an optical axis of the lens structure a distance larger than a coherence length of light at least one spectral range for which said lens structure is designed.Type: ApplicationFiled: February 9, 2011Publication date: February 21, 2013Inventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
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Publication number: 20130033676Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: February 9, 2011Publication date: February 7, 2013Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh, Shai Ben-Yaish, Ofer Limon, Oren Yehezkel, Karen Lahav
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Patent number: 8098949Abstract: An imaging system and method are presented for use in imaging with zoom. The system comprises a pixel detector array (PDA), an optical focusing arrangement, and a spatial filter configured and operable to selectively switch between at least two transmitting states. Distributions of an optical resolution of the optical focusing arrangement and of a geometrical resolution of the PDA define an aliasing window along an at least one direction.Type: GrantFiled: February 12, 2009Date of Patent: January 17, 2012Assignee: Xceed Imaging Ltd.Inventors: Zeev Zalevsky, Alex Zlotnik
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Patent number: 8040604Abstract: An imaging system is presented for imaging objects within a field of view of the system. The imaging system comprises an imaging lens arrangement, a light detector unit at a certain distance from the imaging lens arrangement, and a control unit connectable to the output of the detection unit. The imaging lens arrangement comprises an imaging lens and an optical element located in the vicinity of the lens aperture, said optical element introducing aperture coding by an array of regions differently affecting a phase of light incident thereon which are randomly distributed within the lens aperture, thereby generating an axially-dependent randomized phase distribution in the Optical Transfer Function (OTF) of the imaging system resulting in an extended depth of focus of the imaging system. The control unit is configured to decode the sampled output of the detection unit by using the random aperture coding to thereby extract 3D information of the objects in the field of view of the light detector unit.Type: GrantFiled: January 11, 2010Date of Patent: October 18, 2011Assignee: Xceed Imaging Ltd.Inventors: Zeev Zalevsky, Alex Zlotnik
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Publication number: 20110194180Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.Type: ApplicationFiled: May 17, 2010Publication date: August 11, 2011Applicant: XCEED IMAGING LTD.Inventors: Zeev Zalevsky, Alex Zlotnik, Ido Raveh
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Publication number: 20100110179Abstract: An imaging system is presented for imaging objects within a field of view of the system. The imaging system comprises an imaging lens arrangement, a light detector unit at a certain distance from the imaging lens arrangement, and a control unit connectable to the output of the detection unit. The imaging lens arrangement comprises an imaging lens and an optical element located in the vicinity of the lens aperture, said optical element introducing aperture coding by an array of regions differently affecting a phase of light incident thereon which are randomly distributed within the lens aperture, thereby generating an axially-dependent randomized phase distribution in the Optical Transfer Function (OTF) of the imaging system resulting in an extended depth of focus of the imaging system. The control unit is configured to decode the sampled output of the detection unit by using the random aperture coding to thereby extract 3D information of the objects in the field of view of the light detector unit.Type: ApplicationFiled: January 11, 2010Publication date: May 6, 2010Applicant: Xceed Imaging Ltd.Inventors: Zeev ZALEVSKY, Alex ZLOTNIK
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Patent number: 7646549Abstract: An imaging system is presented for imaging objects within a field of view of the system. The imaging system comprises an imaging lens arrangement, a light detector unit at a certain distance from the imaging lens arrangement, and a control unit connectable to the output of the detection unit. The imaging lens arrangement comprises an imaging lens and an optical element located in the vicinity of the lens aperture, said optical element introducing aperture coding by an array of regions differently affecting a phase of light incident thereon which are randomly distributed within the lens aperture, thereby generating an axially-dependent randomized phase distribution in the Optical Transfer Function (OTF) of the imaging system resulting in an extended depth of focus of the imaging system. The control unit is configured to decode the sampled output of the detection unit by using the random aperture coding to thereby extract 3D information of the objects in the field of view of the light detector unit.Type: GrantFiled: December 18, 2007Date of Patent: January 12, 2010Assignee: Xceed Imaging LtdInventors: Zeev Zalevsky, Alex Zlotnik