Patents by Inventor Ophir Eyal
Ophir Eyal 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: 20120316830Abstract: A system for measuring a distance to a substrate includes a first light source, emitting a first wavelength on a region of the substrate though a lens. A second light source emits a second wavelength region of the substrate through the lens. A first and second detector are configured to detect the first and second wavelength light reflected from the substrate. A processor is configured to compute a first response function wherein the first response function represents reflected light intensity emitted from the first light source as a function of the distance between the imaging device and substrate. A second response function represents reflected light intensity emitted from the second light source as a function of the distance between the imaging device and substrate. A ratio response function represents the ratio of the first and second response function as a function of distance between the imaging device and substrate.Type: ApplicationFiled: June 9, 2011Publication date: December 13, 2012Inventor: Ophir Eyal
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Publication number: 20120314200Abstract: A distance measurement method includes imaging a first light source emitting a first wavelength, on a region of a substrate with a dispersive confocal lens; imaging a second light source emitting a second wavelength with the dispersive confocal lens on the region of the substrate; measuring intensity of light reflection emitted from the first light source; measuring intensity of light reflection emitted from the second light source; and generating a first response function wherein the first response function represents reflected light intensity emitted from the first light source as a function of the distance.Type: ApplicationFiled: June 9, 2011Publication date: December 13, 2012Inventor: Ophir Eyal
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Patent number: 8284229Abstract: An imaging head (404) for writing an image on a substrate (108) includes an array of emitters (104) comprised of groups of emitters (120, 116, 112); imaging lens (408) that focuses light from each group onto the substrate; and wherein light from each group is focused at a different depth relative to a surface of the substrate.Type: GrantFiled: September 8, 2009Date of Patent: October 9, 2012Assignee: Eastman Kodak CompanyInventors: David Aviel, Ophir Eyal
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Patent number: 8111275Abstract: The present invention relates to a system for optically adjusting a computer-to-plate (CTP) imaging head which includes an a light source (104), optical fiber (124) for transmitting light emitted from the light source; an imaging lens (204) for focusing light emitted from a distal end of the optical fiber (128) on a substrate; wherein a portion of light striking the substrate is reflected back to the distal end of the optical fiber; a fiber optic coupler (116) in the optical fiber which transmits the reflected light to a light detector (112); wherein the light detector measures intensity of the reflected light; and a control unit configured to adjust the imaging head according to the intensity of the reflected light.Type: GrantFiled: May 15, 2009Date of Patent: February 7, 2012Assignee: Eastman Kodak CompanyInventors: Ophir Eyal, Shay Amsili, Vitaly Burkatovsky, Kobi Goldstein, Moshe Liberman
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Publication number: 20110058010Abstract: An imaging head (404) for writing an image on a substrate (108) includes an array of emitters (104) comprised of groups of emitters (120, 116, 112); imaging lens (408) that focuses light from each group onto the substrate; and wherein light from each group is focused at a different depth relative to a surface of the substrate.Type: ApplicationFiled: September 8, 2009Publication date: March 10, 2011Inventors: David Aviel, Ophir Eyal
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Publication number: 20100289865Abstract: The present invention relates to a system for optically adjusting a computer-to-plate (CTP) imaging head which includes an a light source (104), optical fiber (124) for transmitting light emitted from the light source; an imaging lens (204) for focusing light emitted from a distal end of the optical fiber (128) on a substrate; wherein a portion of light striking the substrate is reflected back to the distal end of the optical fiber; a fiber optic coupler (116) in the optical fiber which transmits the reflected light to a light detector (112); wherein the light detector measures intensity of the reflected light; and a control unit configured to adjust the imaging head according to the intensity of the reflected light.Type: ApplicationFiled: May 15, 2009Publication date: November 18, 2010Inventors: Ophir Eyal, Shay Amsili, Vitaly Burkatovsky, Kobi Goldstein, Moshe Liberman
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Publication number: 20100086253Abstract: A distributed temperature sensor (10) for cables configurations including at least one optical waveguide (12), the waveguide is constructed from a material with a predefined melting point, a light source (13) which is configured to emit light into the sensing optical waveguide (12), end a detector (14) configured to detect transmitted light intensity from the sensing optical waveguide (12) and an interlock module (15) configured to perform a shutdown of high power fiber coupled laser diodes (11), according to the signal detected by detector (14).Type: ApplicationFiled: October 8, 2008Publication date: April 8, 2010Inventors: Ophir Eyal, Moshe Liberman
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Publication number: 20090207387Abstract: A fiber optic imaging apparatus includes a light source (12); at least one optical fiber (47) for transmitting light from the light source; a mechanical assembly for supporting at least one optical fiber; a detector (41) which measures light transmitted by at least one optical fiber; and a controller for adjusting light intensity emitted from the light source according to a level of light detected by the light detector.Type: ApplicationFiled: February 18, 2008Publication date: August 20, 2009Inventors: Ophir Eyal, Moshe Liberman
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Publication number: 20080018943Abstract: An optical imaging head for direct engraving of flexographic printing plates, comprising at least two laser diodes (10, 12) emitting radiation in one or more wavelengths; and means for imaging the one or more wavelengths of radiation at different depths relative to a surface of the plate.Type: ApplicationFiled: June 19, 2006Publication date: January 24, 2008Inventors: Ophir Eyal, Moshe Liberman, Asaf Pellman, Rina Rauchbach, Haim Chayet
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Patent number: 7167630Abstract: Beam shapers, imaging heads formed using such beam shapers and methods are provided that are adapted to shape a light beam for use in imaging. In accordance with one method described herein a light beam is received and the light beam is reflectively scrambled to form generally homogenous light having a non-circular shape. The homogenous light is delivered to a circular core multimode light path that shapes the light beam so that light exiting the circular core multimode light path comprises circular shaped homogenous light.Type: GrantFiled: November 7, 2005Date of Patent: January 23, 2007Assignee: Kodak IL, Ltd.Inventors: Ophir Eyal, Moshe Liberman, Asaf Pellman
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Publication number: 20060098934Abstract: Beam shapers, imaging heads formed using such beam shapers and methods are provided that are adapted to shape a light beam for use in imaging. In accordance with one method described herein a light beam is received and the light beam is reflectively scrambled to form generally homogenous light having a non-circular shape. The homogenous light is delivered to a circular core multimode light path that shapes the light beam so that light exiting the circular core multimode light path comprises circular shaped homogenous light.Type: ApplicationFiled: November 7, 2005Publication date: May 11, 2006Inventors: Ophir Eyal, Moshe Liberman, Asaf Pellman
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Patent number: 6519082Abstract: An apparatus and method for a self-adjusting Raman amplifier for fiber optic transmission lines incorporating a line diagnostic mechanism in order to calculate, control and optimize the operating parameters for the amplifier. A Line Analyzing Unit, adjacent to the Raman pump unit, operates before the Raman pump is enabled and during operation, and characterizes the transmission line. The Line Analyzing Unit determines and characterizes the types of optical fibers installed along the transmission line and calculates and optimizes the pump or pumps power in order to achieve optimum gain, gain equalization and gain tilt. The Line Analyzing Unit may also determine if there is an optical loss or reflection in the optical fiber that can be destructive when the high power Raman pump is operating.Type: GrantFiled: February 22, 2002Date of Patent: February 11, 2003Assignee: Redc Optical Networks Ltd.Inventors: Uri Ghera, Doron Meshulach, Ophir Eyal, Roberto Klein
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Publication number: 20020159134Abstract: An apparatus and method for a self-adjusting Raman amplifier for fiber optic transmission lines incorporating a line diagnostic mechanism in order to calculate, control and optimize the operating parameters for the amplifier. A Line Analyzing Unit, adjacent to the Raman pump unit, operates before the Raman pump is enabled and during operation, and characterizes the transmission line. The Line Analyzing Unit determines and characterizes the types of optical fibers installed along the transmission line and calculates and optimizes the pump or pumps power in order to achieve optimum gain, gain equalization and gain tilt. The Line Analyzing Unit may also determine if there is an optical loss or reflection in the optical fiber that can be destructive when the high power Raman pump is operating.Type: ApplicationFiled: February 22, 2002Publication date: October 31, 2002Applicant: REDC OPTICAL NETWORKS LTD.Inventors: Uri Ghera, Doron Meshulach, Ophir Eyal, Roberto Klein
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Publication number: 20020118442Abstract: This invention describes an apparatus and method for a self adjusting Raman amplifier for fiber optic transmission lines incorporating a line diagnostic mechanism in order to calculate, control and optimize the operating parameters for the amplifier. This need arises because the amplifier gain medium is the transmission line itself and the amplifier properties depend on the optical fiber properties along the first tens of kilometers of the transmission line from the pump. A Line Analyzing Unit, adjacent to the Raman pump unit, operates before the Raman pump is enabled and during operation, and characterizes the transmission line. The Line Analyzing Unit determines and characterizes the types of optical fibers installed along the transmission line and calculates and optimizes the pump or pumps power in order to achieve optimum gain and gain equalization.Type: ApplicationFiled: February 26, 2001Publication date: August 29, 2002Inventors: Uri Ghera, Doron Meshulach, Ophir Eyal
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Patent number: 6433922Abstract: This invention describes an apparatus and method for a self adjusting Raman amplifier for fiber optic transmission lines incorporating a line diagnostic mechanism in order to calculate, control and optimize the operating parameters for the amplifier. This need arises because the amplifier gain medium is the transmission line itself and the amplifier properties depend on the optical fiber properties along the first tens of kilometers of the transmission line from the pump. A Line Analyzing Unit, adjacent to the Raman pump unit, operates before the Raman pump is enabled and during operation, and characterizes the transmission line. The Line Analyzing Unit determines and characterizes the types of optical fibers installed along the transmission line and calculates and optimizes the pump or pumps power in order to achieve optimum gain and gain equalization.Type: GrantFiled: February 26, 2001Date of Patent: August 13, 2002Assignee: REDC Optical Networks Ltd.Inventors: Uri Ghera, Doron Meshulach, Ophir Eyal
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Patent number: 6272375Abstract: An improved waveguide for an infrared thermometer, comprising a silver halide optical fiber cable of low transmission loss, a high aspect ratio, and a radially decreasing index of refraction. The transmission loss is low enough to enable the cable to be up to ten meters in length, thereby extending beyond the housing of the thermometer and being insertable in confined spaces such as an ear canal. The small cross sectional area and radially decreasing index of refraction of the cable make the field of view of the cable small enough to enable it to resolve targets as small as a portion of the human tympanic membrane, enabling the device to be used to measure the core temperature of humans and other organisms.Type: GrantFiled: September 29, 1999Date of Patent: August 7, 2001Inventors: Abraham Katzir, Ophir Eyal, Ari Derow
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Patent number: 6011891Abstract: An improved waveguide for an infrared thermometer, comprising a silver halide optical fiber cable of low transmission loss, a high aspect ratio, and a radially decreasing index of refraction. The transmission loss is low enough to enable the cable to be up to ten meters in length, thereby extending beyond the housing of the thermometer and being insertable in confined spaces such as an ear canal. The small cross sectional area and radially decreasing index of refraction of the cable make the field of view of the cable small enough to enable it to resolve targets as small as a portion of the human tympanic membrane, enabling the device to be used to measure the core temperature of humans and other organisms.Type: GrantFiled: April 18, 1997Date of Patent: January 4, 2000Inventors: Abraham Katzir, Ophir Eyal, Ari Derow
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Patent number: 5957581Abstract: A method of active radiometric thermometry. The target, whose temperature is to be measured, is heated briefly and locally, preferably by a pulse of laser radiation. The intensity of infrared or visible radiation emitted by the heated portion of the target is measured as a function of time. The temperature of the target is inferred from the shape of the intensity curve of the emitted radiation as a function of time.Type: GrantFiled: May 30, 1997Date of Patent: September 28, 1999Inventors: Abraham Katzir, Ophir Eyal, Vered Scharf