Patents by Inventor Mehmet Alpay
Mehmet Alpay 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: 20230420905Abstract: An apparatus includes an acousto-optical deflector (AOD) system operative to deflect a beam of laser energy within a two-dimensional scan field. The AOD system includes a first AOD operative to deflect the beam of laser energy along a first axis of the two-dimensional scan field; a second AOD arranged optically downstream of the first AOD, wherein the second AOD is operative to deflect the beam of laser energy along a second axis of the two-dimensional scan field; and a controller operatively coupled to the AOD system. The controller is configured to drive each of the first AOD and the second AOD to deflect the beam of laser energy within the two-dimensional scan field and is further configured to drive the first AOD and the second AOD at at least substantially the same diffraction efficiency.Type: ApplicationFiled: November 11, 2021Publication date: December 28, 2023Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Brian JOHANSEN, Tyler HOWE, Mehmet ALPAY, James BROOKHYSER, Jered RICHTER
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Publication number: 20220048135Abstract: Numerous embodiments are disclosed. In one, a laser-processing apparatus includes a positioner arranged within a beam path along which a beam of laser energy is propagatable. A controller may be used to control an operation of the positioner to deflect the beam path within first and second primary angular ranges, and to deflect the beam path to a plurality of angles within each of the first and second primary angular ranges. In another, an integrated beam dump system includes a frame; and a pickoff mirror and beam dump coupled to the frame. In still another, a wavefront correction optic includes a mirror having a reflective surface having a shape characterized by a particular ratio of fringe Zernike terms Z4 and Z9. Many more embodiments are disclosed.Type: ApplicationFiled: January 3, 2020Publication date: February 17, 2022Inventors: James Brookhyser, Jan Kleinert, Mark Kosmowski, Timothy Nuckolls, Jered Richter, Fumiyo Yoshino, Steve Meliza, Mehmet Alpay, Yuan Liu, Kurt M. Eaton
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Publication number: 20190001442Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.Type: ApplicationFiled: September 8, 2016Publication date: January 3, 2019Inventors: Mark Unrath, Chuan Yang, Jan Kleinert, Mark Peeples, Hugh Owens, Gwendolyn Byrne, Haibin Zhang, Justin Redd, Corie Neufeld, James D. Brookhyser, Yasu Osako, Mehmet Alpay, Zhibin Lin, Patrick Riechel, Tim Nuckolls, Hisashi Matsumoto, Chris Ryder
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Publication number: 20160243646Abstract: A laser system (112, 1300) modifies a large area on an article (100) by employing a beamlet generator (1404) to provide a plurality of beamlets (1408) to a beamlet selection device (2350) whose operation is synchronized with movement of a beam steering system (1370) to variably select a number and spatial arrangement of beamlets (1408) to propagate a variable pattern of spot areas (302) to the article (100).Type: ApplicationFiled: February 18, 2016Publication date: August 25, 2016Inventors: Jan Kleinert, Fumiyo Yoshino, Corie Neufeld, Jeremy Willey, Mehmet Alpay
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Publication number: 20160125539Abstract: A computer-implemented method is presented for structuring and maintaining a leveraged indexed investment product, also known as leveraged exchange-traded fund, leveraged ETF, and LETF. The method comprises determining a leverage adjustment protocol, monitoring the leverage of the product, and calculating a target leverage adjustment in accordance with the protocol. Advantages of one or more embodiments include a longer-term investment return profile improved across different statistical regimes, fewer and smaller rebalancing actions, and no more than a predetermined variation in leverage. The method is compatible with fund structures in which the beneficial interests of investors are fungible.Type: ApplicationFiled: November 4, 2014Publication date: May 5, 2016Inventor: Mehmet Alpay Kaya
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Publication number: 20160098795Abstract: A computerized method is presented for observing the market risk of a portfolio, which includes application of path-dependent analysis to market data and providing risk observations capturing salient characteristics of risk experienced by investors. Advantages of one or more embodiments include support for accurate estimation of probabilities associated with large losses and expected losses at given probabilities. The method is adaptable to all risk estimation functions and is compatible with nonhomogeneous data.Type: ApplicationFiled: October 2, 2014Publication date: April 7, 2016Inventor: Mehmet Alpay Kaya
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Patent number: 9120180Abstract: Numerous embodiments of interactive control systems, methods of making the same, and devices incorporating the same are disclosed. In one embodiment, a system includes a light-resistant material; light-transmissive holes penetrating in a light-transmissive pattern through the light resistant material; and a lens disposed adjacent to the light-transmissive pattern.Type: GrantFiled: July 9, 2013Date of Patent: September 1, 2015Assignee: ELECTRO SCIENTIFIC INDUSTRIES, INCInventors: Robert Reichenbach, Mehmet Alpay, Michael Darwin, Jeffrey Howerton
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Publication number: 20140015170Abstract: Numerous embodiments of methods and apparatus for marking articles are disclosed. In one embodiment, a method of marking an article includes providing an article having a preliminary visual appearance; modifying a region of the article; and directing a plurality of optical pulses into the modified region of the article. The plurality of optical pulses can be configured to produce a visible mark on the article. Generally, the mark can be characterized as having a modified visual appearance different from the preliminary visual appearance.Type: ApplicationFiled: July 9, 2013Publication date: January 16, 2014Inventors: Robert Reichenbach, Michael Darwin, Jan Kleinert, Mehmet Alpay, Jeffrey Howerton, Mathew Rekow, Haibin Zhang
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Publication number: 20140016103Abstract: Numerous embodiments of interactive control systems, methods of making the same, and devices incorporating the same are disclosed. In one embodiment, a system includes a light-resistant material; light-transmissive holes penetrating in a light-transmissive pattern through the light resistant material; and a lens disposed adjacent to the light-transmissive pattern.Type: ApplicationFiled: July 9, 2013Publication date: January 16, 2014Inventors: Robert Reichenbach, Mehmet Alpay, Michael Darwin, Jeffrey Howerton
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Patent number: 8604380Abstract: The invention is a method and apparatus for laser marking a stainless steel specimen with commercially desirable marks. The method includes providing a laser processing system having a laser, laser optics and a controller with pre-determined laser pulse parameters, selecting the pre-determined laser pulse parameters associated with the desired mark, and directing the laser marking system to produce laser pulses having laser pulse parameters associated with the desired marks including temporal pulse widths greater than about 1 and less than about 1000 picoseconds.Type: GrantFiled: August 19, 2010Date of Patent: December 10, 2013Assignee: Electro Scientific Industries, Inc.Inventors: Jeffrey Howerton, Robert Reichenbach, Mehmet Alpay
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Patent number: 8173931Abstract: To better address these problems, one or more characteristics are measured from a work piece (28). The measurement information is used to select a preferred predetermined laser processing recipe from a lookup table. The laser processing recipe is then used to process the work piece (28). The lookup table of laser processing recipes can be established from theoretical calculations, from trial an error by an operator, from an automated systematic recipe variation process with post process testing, or from some combination of these or other methods. An automated process can also reduce operator errors and may store measurement values for convenient tracking of work piece characteristics.Type: GrantFiled: June 30, 2008Date of Patent: May 8, 2012Assignee: Electro Scientific Industries, Inc.Inventors: Ling Wen, Mehmet Alpay, Jeff Howerton
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Publication number: 20120043306Abstract: The invention is a method and apparatus for laser marking a stainless steel specimen with commercially desirable marks. The method includes providing a laser processing system having a laser, laser optics and a controller with pre-determined laser pulse parameters, selecting the pre-determined laser pulse parameters associated with the desired mark, and directing the laser marking system to produce laser pulses having laser pulse parameters associated with the desired marks including temporal pulse widths greater than about 1 and less than about 1000 picoseconds.Type: ApplicationFiled: August 19, 2010Publication date: February 23, 2012Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Jeffrey Howerton, Robert Reichenbach, Mehmet Alpay
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Publication number: 20090308854Abstract: To better address these problems, one or more characteristics are measured from a work piece (28). The measurement information is used to select a preferred predetermined laser processing recipe from a lookup table. The laser processing recipe is then used to process the work piece (28). The lookup table of laser processing recipes can be established from theoretical calculations, from trial an error by an operator, from an automated systematic recipe variation process with post process testing, or from some combination of these or other methods. An automated process can also reduce operator errors and may store measurement values for convenient tracking of work piece characteristics.Type: ApplicationFiled: June 30, 2008Publication date: December 17, 2009Inventors: Ling Wen, Mehmet Alpay, Jeff Howerton
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Patent number: 7437207Abstract: An apparatus and method performing a sequence of processing steps on a load supported by a processing plate. The load can include a single sheet on which a plurality of applications are performed or can include a plurality of panels on which respective applications are performed. For each application, at least one coarse target and at least one panel target are used to adjust the programmed coordinates for that application. After the first application of the load is processed using the coarse and panel targets, coarse and panel targets are located for the second application. Using the alignment provided by these targets, the second application is processed. Each subsequent application is similarly aligned and processed.Type: GrantFiled: May 25, 2007Date of Patent: October 14, 2008Assignee: Electro Scientific Industries, Inc.Inventors: Jeffrey Howerton, Mehmet Alpay, Ling Wen
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Patent number: 7345448Abstract: Preferred embodiments of the invention implement techniques for modifying the command trajectory, the architecture of a servomechanism control system, or both, to reduce the servo error during and/or after the command trajectory. An iterative refinement procedure generates for use by the servomechanism control system a corrective input, du, which significantly reduces the error between the desired and actual servomechanism control system outputs. In one embodiment, a uniquely identified plant model is employed in the iterative refinement procedure to compute an approximate gradient that improves the performance and reliability of the refinement procedure. In another embodiment, the actual plant response is used in place of the identified model in the iterative refinement procedure. This is accomplished by time-reversing the stored error signal from a training run, before applying it to the plant to generate an update to the corrective input signal du.Type: GrantFiled: May 12, 2005Date of Patent: March 18, 2008Assignee: Electro Scientific Industries, Inc.Inventors: David Watt, Mehmet Alpay, Mark Unrath, John Wen, Ben Potsaid
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Publication number: 20070278191Abstract: An apparatus and method performing a sequence of processing steps on a load supported by a processing plate. The load can include a single sheet on which a plurality of applications are performed or can include a plurality of panels on which respective applications are performed. For each application, at least one coarse target and at least one panel target are used to adjust the programmed coordinates for that application. After the first application of the load is processed using the coarse and panel targets, coarse and panel targets are located for the second application. Using the alignment provided by these targets, the second application is processed. Each subsequent application is similarly aligned and processed.Type: ApplicationFiled: May 25, 2007Publication date: December 6, 2007Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Jeffrey Howerton, Mehmet Alpay, Ling Wen
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Publication number: 20070253033Abstract: A method and apparatus to improve image quality in images captured via monochromatic cameras using multi-wavelength lighting. A contrast optimization algorithm determines which particular wavelength among those available is most suitable to maximize contrast. The quality of the image can be further improved through active noise cancellation by determining the lighting schemes that provide maximum and minimum contrast between a target and a background. The elimination of image texture data (i.e., noise) is then accomplished through pixel-by-pixel division of the maximum by the minimum contrast image. Alternatively, images obtained using at least two wavelengths can be algebraically combined for noise reduction. The resulting composite image can be fed into any known target identification algorithm.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: Electro Scientific Industries, Inc.Inventors: Brian Johansen, Mehmet Alpay
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Publication number: 20050285558Abstract: Preferred embodiments of the invention implement techniques for modifying the command trajectory, the architecture of a servomechanism control system, or both, to reduce the servo error during and/or after the command trajectory. An iterative refinement procedure generates for use by the servomechanism control system a corrective input, du, which significantly reduces the error between the desired and actual servomechanism control system outputs. In one embodiment, a uniquely identified plant model is employed in the iterative refinement procedure to compute an approximate gradient that improves the performance and reliability of the refinement procedure. In another embodiment, the actual plant response is used in place of the identified model in the iterative refinement procedure. This is accomplished by time-reversing the stored error signal from a training run, before applying it to the plant to generate an update to the corrective input signal du.Type: ApplicationFiled: May 12, 2005Publication date: December 29, 2005Inventors: David Watt, Mehmet Alpay, Mark Unrath, John Wen, Ben Potsaid