1
Todd F Blalock: Thickness measurement of moving webs and seal integrity system using dual interferometer. Lumetrics, Reed Smith, April 17, 2007: US07206076 (9 worldwide citation)

A system and method for measuring the thickness of materials and coatings across a moving length of material such as sheet, film, or web by the use of non-contact optical interferometry is provided. Also, a system and method for evaluating the seal integrity in flexible packaging across a moving web ...


2
Todd F Blalock, Filipp Ignatovich: Apparatus for measurement of the axial length of an eye. Lumetrics, Patent Innovations, John M Hammond, February 8, 2011: US07884946 (4 worldwide citation)

An apparatus for measuring the axial length of a human eye, the apparatus comprising a low coherence light source; a beam splitter; a fast displacement module for rapidly varying the path length within a reference arm of an interferometer; a laser directing a laser beam that is co-propagating with l ...


3
Filipp V Ignatovich, David M Kleinman, Christopher T Cotton, Todd Blalock: Portable fundus camera. Lumetrics, John M Hammond, Patent Innovations, September 16, 2014: US08836778 (4 worldwide citation)

A portable hand-held camera for imaging the fundus of an eye, the camera comprising a housing comprising an internal cavity terminating at a forward housing end, a forward lens, and a light source configured to direct light from locations distributed around the perimeter of the forward lens forwardl ...


4
Filipp V Ignatovich, Todd Blalock: Fiber-based interferometric device for measuring axial dimensions of a human eye. Lumetrics, Patent Innovations, John M Hammond, October 2, 2012: US08279446 (1 worldwide citation)

An apparatus for measuring a layered object comprising a low coherence light source, a coherent light source, and an interferometer including a reference arm and a measurement arm. The reference arm is comprised of a first section of polarization maintaining optical fiber engaged with a first fiber ...


5
Todd F Blalock, Filipp V Ignatovich: Apparatus for measurement of the axial length of an eye. Lumetrics, Patent Innovations, John M Hammond, June 12, 2012: US08199329 (1 worldwide citation)

An apparatus for measuring the axial length of a human eye, the apparatus comprising a low coherence light source; a beam splitter; a fast displacement module for rapidly varying the path length within a reference arm of an interferometer; a laser directing a laser beam that is co-propagating with l ...


6
Donald S Gibson, Filipp V Ignatovich, Michael A Marcus: Associated interferometers using multi-fiber optic delay lines. Lumetrics, John M Hammond, Patent Innovations, September 20, 2016: US09448058 (1 worldwide citation)

An interferometer apparatus which include two or more coupled fiber optic Michelson interferometers using fiber optic stretches which stretch two or more optical fibers wound around the perimeter of the optical fiber stretchers by the same amount is disclosed. Preferably a pair of reference and samp ...


7
Filipp V Ignatovich, Donald S Gibson, Michael A Marcus: Apparatus and method for evaluation of optical elements. Lumetrics, John M Hammond, Patent Innovations, April 28, 2015: US09019485 (1 worldwide citation)

An apparatus for measuring the optical performance characteristics and dimensions of an optical element comprising a low coherence interferometer and a Shack-Hartmann wavefront sensor comprising a light source, a plurality of lenslets, and a sensor array is disclosed. The low coherence interferomete ...


8
Donald S Gibson, Filipp V Ignatovich, Michael A Marcus: Associated interferometers using multi-fiber optic delay lines. Lumetrics, John M Hammond, Patent Innovations, June 26, 2018: US10006754

An interferometer apparatus which include two or more coupled fiber optic Michelson interferometers using fiber optic stretches which stretch two or more optical fibers wound around the perimeter of the optical fiber stretchers by the same amount is disclosed. Preferably a pair of reference and samp ...


9
Kyle J Hadcock, Stephen Heveron Smith, Vincent Lamanna, David Baranson: Rotational and linear system and methods for scanning of objects. Lumetrics, Patent Innovations, John M Hammond, December 17, 2013: US08610899

A scanning system comprised of a multi-axis drive module comprised of a first linear drive operable along a first axis, a second linear drive joined to the first linear drive and operable along a second axis non-parallel to the first axis, and a first rotary drive mounted on the second linear drive, ...


10
John Solpietro, David Compertore, Michael A Marcus: Toric intraocular lens measurement apparatus and method. Lumetrics, John M Hammond, Patent Innovations, November 29, 2016: US09506837

An apparatus for determining the angular error in the placement of fiducial marks on a toric intraocular lens with respect to the true location of a meridional axis of the intraocular lens, the fiducial marks defining an estimate of the angular orientation of the meridional axis of the intraocular i ...