Todd Blalock - Penfield NY, US Christopher Cotton - Honeoye Falls NY, US
Assignee:
ASE Optics, Inc. - Rochester NY
International Classification:
G01J 3/28
US Classification:
356328, 385 12
Abstract:
A multiplexing spectrometer measures at least one parameter, such as temperature, pressure or stress. The system multiplexes the outputs of Bragg stack sensors deposited at the distant ends of optical fibers brought in contact or in close proximity to objects. The spectrometer detects the peaks of the optical signals returned from the Bragg stacks and converts them into corresponding values of the parameters of interest. The spectrometer includes an optical system that comprises an entrance slit, a diffraction grating as a light dispersing means. Multiplexing occurs on a two-dimensional solid state matrix photo detector detects and converts the light signals returned from the Bragg stack sensing elements into corresponding electrical signals, and a built-in look-up table to provides the values of the parameters of interest that correspond the spectral characteristics of the returned light signals.
Apparatus For Measurement Of The Axial Length Of An Eye
Todd F. Blalock - Penfield NY, US Filipp Ignatovich - Rochester NY, US
Assignee:
Lumetrics, Inc. - West Henrietta NY
International Classification:
G01B 11/02
US Classification:
356497
Abstract:
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 light from the low coherence light source into the displacement module.
Apparatus For Measurement Of The Axial Length Of An Eye
Todd F. Blalock - Penfield NY, US Filipp V. Ignatovich - Rochester NY, US
Assignee:
Lumetrics, Inc - Rochester NY
International Classification:
G01B 11/02
US Classification:
356497
Abstract:
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 light from the low coherence light source into the displacement module.
Fiber-Based Interferometric Device For Measuring Axial Dimensions Of A Human Eye
Filipp V Ignatovich - Rochester NY, US Todd Blalock - Penfield NY, US
Assignee:
Lumetrics, Inc. - Rochester NY
International Classification:
G01B 9/02
US Classification:
356479, 356491
Abstract:
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 stretcher. The measurement arm is comprised of a second section of polarization maintaining optical fiber engaged with a second fiber stretcher. The first and second fiber stretchers are driven so as to alternatingly vary the lengths of the first section of polarization maintaining optical fiber and the second section of polarization maintaining optical fiber, thereby causing interference signals with the low coherence light when the length of the reference arm is equal to the length of the measurement arm including the distance from the second section of polarization maintaining optical fiber to any of the surfaces of the layers of the object.
Thickness Measurement Of Moving Webs And Seal Integrity System Using Dual Interferometer
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 by the use of non-contact optical interferometry is provided. Measurement of optical density and thickness, and the combination of various measurements in the production and process of manufacturing materials such as flexible packaging items that involve moving webs of material is disclosed. The present invention concerns the system and method involved in the collection and interpretation of data for these measurements and inspections.
Thickness Measurement Of Moving Webs And Seal Integrity System Using Dual Interferometer
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 by the use of non-contact optical interferometry is provided. Measurement of optical density and thickness, and the combination of various measurements in the production and process of manufacturing materials such as flexible packaging items that involve moving webs of material is disclosed. The present invention concerns the system and method involved in the collection and interpretation of data for these measurements and inspections.
Filipp V. Ignatovich - Rochester NY, US David M. Kleinman - Rochester NY, US Christopher T. Cotton - Honeoye Falls NY, US Todd Blalock - Penfield NY, US
Assignee:
LUMETRICS, INC. - Rochester NY
International Classification:
H04N 7/18
US Classification:
348 78, 348E07085
Abstract:
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 forwardly out of the housing end. In other embodiment, a portable hand-held camera for imaging the fundus of an eye includes optics configured to focus light reflected back from the fundus onto an image receptor, with the optics being capable of varying the field of view among differing portions of the fundus. Methods to ensure unique image identification and storage are described.
Bristol Instruments, Inc Sep 2012 - Apr 2014
Director, Optical Metrology Products
Optimax Systems, Inc. Sep 2012 - Apr 2014
R and D Engineer
Quasar Photonics Sep 2012 - Apr 2014
President and Managing Member
Lumetrics Mar 2003 - Oct 2011
Chief Technology Officer
University of Rochester 1996 - 2000
Senior Laboratory Engineer
Education:
University of Rochester 1985 - 1989
Bachelors, Bachelor of Science
Skills:
Optics Interferometry Optical Engineering Electronics Product Development Photonics Laser R&D Metrology Thin Films Physics Zemax Manufacturing Sensors Electro Optics Medical Devices Engineering Start Ups Matlab Embedded Linux Fiber Optics Digital Imaging Laser Physics Optical Fiber Python Image Processing Optoelectronics Commercialization Linux
150 Lucius Gordon Dr SUITE 207, West Henrietta, NY 14586 1565 Jefferso Rd / #420, Rochester, NY 14623 1565 Jefferson Rd, Rochester, NY 14623 (585)2142455, (585)2720054