Patents by Inventor Martin Feldman
Martin Feldman 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: 11559204Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: GrantFiled: October 23, 2020Date of Patent: January 24, 2023Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Martin Feldman, Dooyoung Hah
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Patent number: 11112592Abstract: According to some embodiments of the present invention, a fine focus microscope includes an objective lens for collecting light from an object being imaged, and a tube lens for forming a first image from light received from the objective lens. The fine focus microscope further includes a fine focus lens for forming a second image from the first image, and an eyepiece for forming a third image from the second image, wherein the third image is viewable by a user. The fine focus microscope further includes a field lens for directing light from the second image to the eyepiece, and a positioning system mechanically coupled to the fine focus lens, the eyepiece, and the field lens. The positioning system changes a position of the fine focus lens, the eyepiece, and the field lens with respect to the objective lens to provide a change in focus of the object being imaged.Type: GrantFiled: April 22, 2016Date of Patent: September 7, 2021Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventor: Martin Feldman
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Publication number: 20210038081Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: ApplicationFiled: October 23, 2020Publication date: February 11, 2021Applicant: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANInventors: Martin Feldman, Dooyoung Hah
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Patent number: 10842382Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: GrantFiled: August 21, 2018Date of Patent: November 24, 2020Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Martin Feldman, Dooyoung Hah
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Publication number: 20190008391Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: ApplicationFiled: August 21, 2018Publication date: January 10, 2019Applicant: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGEInventors: Martin Feldman, Dooyoung Hah
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Patent number: 10085646Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: GrantFiled: May 26, 2015Date of Patent: October 2, 2018Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGEInventors: Martin Feldman, Dooyoung Hah
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Publication number: 20160313546Abstract: According to some embodiments of the present invention, a fine focus microscope includes an objective lens for collecting light from an object being imaged, and a tube lens for forming a first image from light received from the objective lens. The fine focus microscope further includes a fine focus lens for forming a second image from the first image, and an eyepiece for forming a third image from the second image, wherein the third image is viewable by a user. The fine focus microscope further includes a field lens for directing light from the second image to the eyepiece, and a positioning system mechanically coupled to the fine focus lens, the eyepiece, and the field lens. The positioning system changes a position of the fine focus lens, the eyepiece, and the field lens with respect to the objective lens to provide a change in focus of the object being imaged.Type: ApplicationFiled: April 22, 2016Publication date: October 27, 2016Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventor: Martin Feldman
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Publication number: 20150335249Abstract: A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.Type: ApplicationFiled: May 26, 2015Publication date: November 26, 2015Applicant: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGEInventors: Martin Feldman, Dooyoung Hah
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Patent number: 8408259Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.Type: GrantFiled: October 10, 2011Date of Patent: April 2, 2013Assignee: Robert Bosch GmbHInventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
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Patent number: 8323183Abstract: A forward-looking, optical coherence tomography, endoscopic probe is disclosed capable of high resolution with a small diameter. Light is focused and scanned during three passes through a lens. A light source supplies light to the proximal side of the lens. The light makes a first pass through the lens, and is reflected from a fixed mirror on the distal side. The reflected light makes a second pass from the distal side to the proximal side, and exits the lens at the proximal side, and is reflected by a scanning mirror. The light makes a third pass through the lens from the proximal side to the distal side to a sample to be imaged. The light is focused during each of the three passes through the lens. Light reflected from the sample passes back through and is focused by the same system.Type: GrantFiled: October 9, 2007Date of Patent: December 4, 2012Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical CollegeInventors: Martin Feldman, Dooyoung Hah
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Patent number: 8233154Abstract: An apparatus and method are disclosed for imaging a diffraction grating with a very high depth of focus, using a highly accurate code plate position measurement system. Positions may be measured to an accuracy of 1 nm or even smaller. The system may be used in fields such as manufacturing integrated circuits, and low- and very-low-frequency geophones, and other low- and very-low-frequency acoustic detectors.Type: GrantFiled: December 20, 2006Date of Patent: July 31, 2012Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical CollegeInventors: Martin Feldman, Li Jiang
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Publication number: 20120024424Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.Type: ApplicationFiled: October 10, 2011Publication date: February 2, 2012Applicants: ROBERT BOSCH GMBH, CREDO TECHNOLOGY CORPORATIONInventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
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Patent number: 8033307Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.Type: GrantFiled: February 13, 2009Date of Patent: October 11, 2011Assignee: Robert Bosch GmbHInventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
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Publication number: 20100206430Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.Type: ApplicationFiled: February 13, 2009Publication date: August 19, 2010Applicants: CREDO TECHNOLOGY CORPORATION, ROBERT BOSCH GMBHInventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
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Patent number: 7715109Abstract: An optical system for the production of images, comprising an all optical system is disclosed. Said all optical system manipulates images directly by digital electronics without loss in the number of resolvable spots at higher magnifications.Type: GrantFiled: May 27, 2008Date of Patent: May 11, 2010Assignee: The Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventor: Martin Feldman
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Publication number: 20100049002Abstract: A forward-looking, optical coherence tomography, endoscopic probe is disclosed capable of high resolution with a small diameter. Light is focused and scanned during three passes through a lens. A light source supplies light to the proximal side of the lens. The light makes a first pass through the lens, and is reflected from a fixed mirror on the distal side. The reflected light makes a second pass from the distal side to the proximal side, and exits the lens at the proximal side, and is reflected by a scanning mirror. The light makes a third pass through the lens from the proximal side to the distal side to a sample to be imaged. The light is focused during each of the three passes through the lens. Light reflected from the sample passes back through and is focused by the same system.Type: ApplicationFiled: October 9, 2007Publication date: February 25, 2010Inventors: Martin Feldman, Dooyoung Hah
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Publication number: 20090015937Abstract: An optical system for the production of images, comprising an all optical system is disclosed. Said all optical system manipulates images directly by digital electronics without loss in the number of resolvable spots at higher magnifications.Type: ApplicationFiled: May 27, 2008Publication date: January 15, 2009Inventor: Martin Feldman
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Publication number: 20080297807Abstract: An apparatus and method are disclosed for imaging a diffraction grating with a very high depth of focus, using a highly accurate code plate position measurement system. Positions may be measured to an accuracy of 1 nm or even smaller. The system may be used in fields such as manufacturing integrated circuits, and low- and very-low-frequency geophones, and other low- and very-low-frequency acoustic detectors.Type: ApplicationFiled: December 20, 2006Publication date: December 4, 2008Inventors: Martin Feldman, Li Jiang
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Patent number: 6792175Abstract: A free space all-optical crossbar switches light from a plurality of sources onto a plurality of receivers, in any arbitrary permutation or combination (including one-to-one and many-to-one permutations). The sources and receivers may, for example, be single mode optical fibers. The polarization of the light from each source is controlled by a series of polarization control devices associated with the source so as to obtain desired angular deflections through a series of polarization-dependent angular deflectors in a first deflection unit. A lens may then direct the light from each source towards its desired receiver. An optional second deflection unit containing polarization control devices associated with individual receivers redirects the light so that it is incident normally on the receivers, an advantage if the receivers are single mode optical fibers. Alternative embodiments are described to reduce the number of optical components and to provide uninterrupted high speed data flow.Type: GrantFiled: November 30, 2000Date of Patent: September 14, 2004Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Martin Feldman, Ahmed El-Amawy, Ramachandran Vaidyanathan
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Patent number: 6440619Abstract: Techniques are disclosed to compensate for distortions in lithography by locally heating the membrane in a lithographic mask. The techniques may be used both to shrink and to expand areas of the mask locally, in order to adjust for varying magnitudes and signs of distortion. In one embodiment the correction method comprises two steps: (1) A send-ahead wafer is exposed and measured by conventional means to determine the overlay errors at several points throughout the field. (2) During exposure of subsequent wafers, calibrated beams of light are focused on the mask. The heating from the absorbed light produces displacements that compensate for the overlay errors measured with the send-ahead wafer. Any source of distortion may be corrected—for example, distortion appearing on the mask initially, distortion that only develops on the mask over time, or distortion on the wafer.Type: GrantFiled: May 25, 2000Date of Patent: August 27, 2002Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventor: Martin Feldman