Patents by Inventor Ariela Donval
Ariela Donval 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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Patent number: 11781906Abstract: Aspects of embodiments pertain to a sensing systems configured to receive scene electromagnetic (EM) radiation comprising a first wavelength (WL1) range and a second wavelength (WL2) range. The sensing system comprises at least one spectral filter configured to filter the received scene EM radiation to obtain EM radiation in the WL1 range and the WL2 ranges; and a self-adaptive electromagnetic (EM) energy attenuating structure. The self-adaptive EM energy attenuating structure may comprise material that includes nanosized particles which are configured such that high intensity EM radiation at the WL1 range incident onto a portion of the self-adaptive EM energy attenuating structure causes interband excitation of one or more electron-hole pairs, thereby enabling intraband transition in the portion of the self-adaptive EM energy attenuating structure by EM radiation in the WL2 range.Type: GrantFiled: September 2, 2022Date of Patent: October 10, 2023Assignee: ELBIT SYSTEMS LTD.Inventors: Noam Yona Gross, Ariela Donval
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Publication number: 20230139136Abstract: Aspects of embodiments pertain to a sensing systems configured to receive scene electromagnetic (EM) radiation comprising a first wavelength (WL1) range and a second wavelength (WL2) range. The sensing system comprises at least one spectral filter configured to filter the received scene EM radiation to obtain EM radiation in the WL1 range and the WL2 ranges; and a self-adaptive electromagnetic (EM) energy attenuating structure. The self-adaptive EM energy attenuating structure may comprise material that includes nanosized particles which are configured such that high intensity EM radiation at the WL1 range incident onto a portion of the self-adaptive EM energy attenuating structure causes interband excitation of one or more electron-hole pairs, thereby enabling intraband transition in the portion of the self-adaptive EM energy attenuating structure by EM radiation in the WL2 range.Type: ApplicationFiled: September 2, 2022Publication date: May 4, 2023Inventors: Noam Yona GROSS, Ariela DONVAL
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Patent number: 10209538Abstract: An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic.Type: GrantFiled: April 2, 2018Date of Patent: February 19, 2019Assignee: Elbit Systems Ltd.Inventors: Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Publication number: 20180292683Abstract: An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic.Type: ApplicationFiled: April 2, 2018Publication date: October 11, 2018Applicant: Elbit Systems Ltd.Inventors: Noam GROSS, Ariela Donval, Doron Nevo, Moshe ORON
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Patent number: 10073285Abstract: The present invention relates to optical power-limiting devices, and more particularly, to an optical power-limiting passive (self-adaptive) device and to a method for limiting solar power transmission in devices such as windows, using scattering level changes in a novel thermotropic composition that contains salt nano or microparticles embedded in a solid transparent host layer, where temperature change induces change in the refraction index of the matrix as well as of the embedded particles, creating a scattering layer, substantially reflecting the incident light thus limiting the amount of light passing through the window, green house covers, car sun roofs, solar panel windows and protection layers on housing roofs and walls, as a function of ambient temperature.Type: GrantFiled: March 14, 2017Date of Patent: September 11, 2018Assignee: Elbit Systems Ltd.Inventors: Moshe Oron, Doron Nevo, Noam Gross, Ariela Donval
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Patent number: 9933638Abstract: An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic.Type: GrantFiled: January 20, 2016Date of Patent: April 3, 2018Assignee: Elbit Systems Ltd.Inventors: Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Patent number: 9477021Abstract: An energy efficient optical window has different optical properties when irradiated by solar light from front or back side of the window. The window is used to reflect most of the infrared light at summer times, leaving the interior cooler and to absorb most of the infrared light at winter times, making the interior hotter by heat transfer from the hot window pane. Mechanical reversal of the window, inside out, is used to apply the needed version for winter and summer. The window is coated with alternating thin metallic and dielectric layers that transmit most of the visible light while reflecting most of the infrared part of the spectrum when impinged by solar light on one side and transmit most of the visible light while absorbing most of the infrared part of the spectrum when impinged by solar light on the other side.Type: GrantFiled: March 14, 2013Date of Patent: October 25, 2016Assignee: KILOLAMBDA TECHNOLOGIES LTD.Inventors: Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Patent number: 9467630Abstract: A system for facilitating a consumer's selection of customized color-changing lenses for eyewear, or windows, captures a digital color image of at least the face of the consumer and displays that color image to the consumer on a video display while superimposing a pair of lenses over the eyes. The display simulates the color of the superimposed lenses when made of a selected photochromic or thermochromic material. The color of the superimposed lenses is changeable, in response to consumer-controlled inputs, over a range between (a) an initial color for the lenses when subjected to at least one of (i) a first predetermined temperature and (ii) a first predetermined light condition, and (b) a final color for said lenses when subjected to at least one of (i) a second predetermined temperature higher than said first predetermined temperature and (ii) a second predetermined light condition brighter than said first predetermined light condition.Type: GrantFiled: October 7, 2013Date of Patent: October 11, 2016Assignee: KILOLAMBDA TECHNOLOGIES LTD.Inventors: Ido Dotan, Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Publication number: 20160154257Abstract: An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic.Type: ApplicationFiled: January 20, 2016Publication date: June 2, 2016Inventors: Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Patent number: 9310541Abstract: An optical power-limiting passive (self-adaptive) device and method for limiting optical power transmission in lenses and windows, using layers of different photochromic compositions that exploit the full solar ultraviolet (UV) and short visible light spectrum. While a typical single photochromic material is activated by a UV band of wavelengths, e.g. 340 to 380 nm, adding a layer of photochromic material that is activated by an additional band of wavelengths, e.g., 380 to 420 nm, allows the efficient use of a wider band of solar UV and short visible light, e.g., 340 to 420 nm, thus enhancing the photochromic response to solar light.Type: GrantFiled: May 13, 2013Date of Patent: April 12, 2016Assignee: KILOLAMBDA TECHNOLOGIES LTDInventors: Noam Gross, Ariela Donval, Ido Dotan, Moshe Oron, Doron Nevo
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Patent number: 9268158Abstract: An optical window-filter includes a thermochromic material and a light absorbing material that can be bonded chemically. Absorption of light by the light absorbing material generates heat that causes phase transformation of the thermochromic material. A filter for an infrared imaging system has detectors sensitive to radiation in an infrared transmission spectrum. The filter includes a thermochromic material and a light-absorbing material. Absorption of high-power radiation in the infrared transmission spectrum by the light-absorbing material generates heat that causes phase transformation of the thermochromic material to attenuate the high-power radiation while transmitting substantially unaffected low-power radiation in the infrared transmission spectrum.Type: GrantFiled: August 5, 2013Date of Patent: February 23, 2016Assignee: KiloLambda Technologies Ltd.Inventors: Ariela Donval, Noam Gross, Eran Partouche, Doron Nevo, Moshe Oron
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Patent number: 9223157Abstract: An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.Type: GrantFiled: September 12, 2012Date of Patent: December 29, 2015Assignee: KiloLambda Technologies Ltd.Inventors: Ariela Donval, Yuval Ofir, Doron Nevo, Moshe Oron
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Publication number: 20150097855Abstract: A system for facilitating a consumer's selection of customized color-changing lenses for eyewear, or windows, captures a digital color image of at least the face of the consumer and displays that color image to the consumer on a video display while superimposing a pair of lenses over the eyes. The display simulates the color of the superimposed lenses when made of a selected photochromic or thermochromic material. The color of the superimposed lenses is changeable, in response to consumer-controlled inputs, over a range between (a) an initial color for the lenses when subjected to at least one of (i) a first predetermined temperature and (ii) a first predetermined light condition, and (b) a final color for said lenses when subjected to at least one of (i) a second predetermined temperature higher than said first predetermined temperature and (ii) a second predetermined light condition brighter than said first predetermined light condition.Type: ApplicationFiled: October 7, 2013Publication date: April 9, 2015Applicant: KILOLAMBDA TECHNOLOGIES LTD.Inventors: Ido Dotan, Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Patent number: 8922868Abstract: The present invention relates to an optical window-filter including a thermochromic material and a light absorbing material. An absorption of light by the light absorbing material generates heat that causes phase transformation of the thermochromic material. The present invention further relates to a filter for an infrared imaging system having detectors sensitive to radiation in an infrared transmission spectrum. The filter includes a thermochromic material and a light-absorbing material. An absorption of high-power radiation in the infrared transmission spectrum by the light-absorbing material generates heat that causes phase transformation of the thermochromic material to attenuate the high-power radiation while transmitting substantially unaffected low-power radiation in the infrared transmission spectrum.Type: GrantFiled: February 20, 2013Date of Patent: December 30, 2014Assignee: KiloLambda Technologies Ltd.Inventors: Ariela Donval, Noam Gross, Eran Partouche, Doron Nevo, Moshe Oron
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Publication number: 20140334026Abstract: An optical power-limiting passive (self-adaptive) device and method for limiting optical power transmission in lenses and windows, using layers of different photochromic compositions that exploit the full solar ultraviolet (UV) and short visible light spectrum. While a typical single photochromic material is activated by a UV band of wavelengths, e.g. 340 to 380 nm, adding a layer of photochromic material that is activated by an additional band of wavelengths, e.g., 380 to 420 nm, allows the efficient use of a wider band of solar UV and short visible light, e.g., 340 to 420 nm, thus enhancing the photochromic response to solar light.Type: ApplicationFiled: May 13, 2013Publication date: November 13, 2014Inventors: Noam Gross, Ariela Donval, Ido Dotan, Moshe Oron, Doron Nevo
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Publication number: 20140327949Abstract: An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic.Type: ApplicationFiled: December 17, 2012Publication date: November 6, 2014Inventors: Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
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Publication number: 20140233085Abstract: An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.Type: ApplicationFiled: September 12, 2012Publication date: August 21, 2014Applicant: KiloLambda Technologies Ltd.Inventors: Ariela Donval, Yuval Ofir, Doron Nevo, Moshe Oron
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Publication number: 20140220352Abstract: The present invention relates to an optical power-limiting composition for limiting optical power transmission for an entire solar UV spectrum. The composition includes photochromic dye molecules and UV fluorescent nanoparticles in a matrix material. The composition is configured to absorb wavelengths in the entire solar UV spectrum, including wavelengths of 300-340 nm, thereby enhancing photochromic responsiveness of the composition to solar light. The composition includes a first side that receives impinging light and a second side opposed to the first side.Type: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Applicant: KiloLambda Technologies Ltd.Inventors: Noam Gross, Ariela Donval, Moshe Oron, Doron Nevo
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Patent number: 8736992Abstract: An impingement angle-independent wavelength-specific limiter includes a stack of wavelength-specific limiters configured to limit impinging light having a plurality of different wavelengths. The stack includes a plurality of wavelength-specific limiters. Each one of the plurality of wavelength-specific limiters is activated by a corresponding wavelength of the impinging light and is configured to limit the corresponding wavelength of the impinging light.Type: GrantFiled: May 10, 2012Date of Patent: May 27, 2014Assignee: KiloLambda Technologies, Inc.Inventors: Yuval Ofir, Ariela Donval, Moshe Oron, Doron Nevo
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Publication number: 20140124715Abstract: The present invention relates to optical power-limiting device, and more particularly, to an optical power-limiting passive device and to a method for limiting optical power transmission in lenses and windows, using absorption changes in a novel photochromic composition, having response to infrared light in addition to the conventional response to ultra violet light. This additional response is featuring the use of the novel photochromic composition in places where ultra violet and short wave visible light is absent, or obscured, e.g. using photochromic glasses behind the front window of a car.Type: ApplicationFiled: January 18, 2012Publication date: May 8, 2014Applicant: KiloLambda Technologies Ltd.Inventors: Yuval Ofir, Dima Cheskis, Ariela Donval, Doron Nevo, Moshe Oron, Ido Dotan