Photoelectric (e.g., Sequential Viewing) Patents (Class 356/434)
  • Patent number: 11317852
    Abstract: Medical device or instrument for diagnosing pressure ulcers using optical reflectance spectroscopy. The device may comprise a tip and a controller. The tip is pressed against the skin of the patient and collects the optical reflectance data. The controller processes the data to determine whether there exists a pressure ulcer and, if there is one, its depth. The tip may also include a pressure sensor for sensing the pressure at which the tip is applied to the patient's skin.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 3, 2022
    Assignee: Carnegie Mellon University
    Inventors: Sanna Gaspard, Mel Siegel, Todd M. Przybycien, James F. Antaki, David M. Brienza, Mark B. Friedman
  • Patent number: 11246570
    Abstract: A probe for transient elastography includes a probe casing, at least one ultrasound transducer having a symmetry axis, a vibrator located inside the probe casing, a position sensor coupled to the probe casing, the position sensor being arranged to measure the displacement of the probe, wherein the vibrator is arranged to induce a movement of the probe casing along a predefined axis, the predefined axis being the symmetry axis of the ultrasound transducer. The ultrasound transducer is bound to the probe casing with no motion of the ultrasound transducer with respect to the probe casing, and the probe includes a feedback circuit including the position sensor and a control loop and configured to use the displacement of the probe as a feedback signal and to control the movement of the vibrator inside the probe casing and the shape of a low frequency pulse applied by the probe.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: February 15, 2022
    Assignee: ECHOSENS
    Inventors: St├ęphane Audiere, Laurent Sandrin
  • Patent number: 11089969
    Abstract: A method and a device for diagnostic of skin cancer and other mammalian skin tissue pathologies are described. The method relies on determination of pathological changes in tissue vascularization and capillary blood flow. The device uses photonic emitters and detectors to characterize temporal and spatial changes in blood flow in response to external perturbation such as external mechanical force or temperature change.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 17, 2021
    Assignee: VERISKIN, INC.
    Inventors: Mirianas Chachisvilis, Carl Frederick Edman, Eugene Tu
  • Patent number: 11022540
    Abstract: A camera-based photoacoustic remote sensing system (C-PARS) for imaging a subsurface and deep structures in a sample, has an excitation beam configured to generate ultrasonic signals in the sample at an excitation location; an interrogation beam incident on the sample at the excitation location, a portion of the interrogation beam returning from the sample that is indicative of the generated ultrasonic signals; a camera to map the returning portion of the interrogation beam over the entire field of view.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: June 1, 2021
    Assignee: ILLUMISONICS INC.
    Inventors: Parsin Haji Reza, Roger Zemp
  • Patent number: 10992822
    Abstract: Example aspects described herein relate to an apparatus for adjusting control parameters of a printing substance for a printing system. Such adjustments may occur in conjunction with a color calibration process of the printing system.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 27, 2021
    Assignee: HP Indigo B.V.
    Inventors: Lior Joseph, Yoav Landau, Noam Parvin
  • Patent number: 10627576
    Abstract: An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The system also includes at least two ferrules. Each ferrule operates with a single emitter/detector pair. The ferrules are designed to operate interchangeably with either emitter/detector pair.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: April 21, 2020
    Assignee: X Development LLC
    Inventors: Nam-hyong Kim, Robert Todd Belt, Baris Ibrahim Erkmen, Edward Allen Keyes
  • Patent number: 10578514
    Abstract: A method of detecting natural gas releases that includes the step of traversing a target area with a gas-filter correlation radiometer having a field of view oriented towards the target area. The gas-filter correlation radiometer receives reflected radiation in a passband from the target area and produces gas-filter correlation radiometer signals from the received reflected radiation. A surface reflectivity spectral profile of the target area is determined. The presence of methane in the target area is then determined based upon the received reflected radiation and the surface reflectivity spectral profile of the target area.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: March 3, 2020
    Assignee: New Era Technology, Inc.
    Inventor: T. Boyd Tolton
  • Patent number: 10481070
    Abstract: Sample monitoring and flow control systems and methods are disclosed for monitoring of airborne particulates. A system may include a particle collection filter. The system also includes a fluid moving device for moving a sample through the particle collection filter. Further, the system includes a light source configured to direct irradiating light towards the particle collection filter. The system also includes a light detector positioned to receive the irradiating light passing through the particle collection filter and configured to generate a signal representative of an amount of the received light. Further, the system includes a controller configured to receive the signal and to control the fluid moving device based on the amount of the received light.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: November 19, 2019
    Assignee: Research Triangle Institute
    Inventors: Anthony Clint Clayton, Howard Jerome Walls, David S. Ensor, Andrei Yurievich Khlystov
  • Patent number: 10436705
    Abstract: A system and method for adjusting the light output of an optoacoustic imaging system is presented. An optoacoustic imaging system includes a light source such as a laser, the light source having a light output control, a probe for delivering light to a volume, the probe being associated with one or more sensors, a light path operatively connected to the first light source, the light path providing light from the first light source to the probe. Generally, the light output of an optoacoustic imaging system may be harmful to the eye, and may be subject to maximum safe fluence levels incident upon the volume of interest in a clinical setting. Accordingly, the light output control may be set to an initial, relatively low value. After the light source is pulsed, the light output may be measured at or near the probe at the distal end of the light path. The measured light output can used to determine whether, and how much, to change the setting of the light output control.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 8, 2019
    Assignee: SENO MEDICAL INSTRUMENTS, INC.
    Inventor: Gregory Schmid
  • Patent number: 10288561
    Abstract: A gas analyzer is provided, capable of measuring specific gas amount information within a measurement target gas in which pressure varies greatly. The gas analyzer includes a calculation member for calculating specific gas amount information of the nth cycle, a gas pressure change amount calculation unit for calculating an amount of gas pressure change at each time, and a correction signal creation member for generating a time changing, corrected light intensity at each wavelength ?, by performing a fitting process using the time-changing intensity over a long time period in a time zone in which the amount of gas pressure change is small but using the time-changing intensity over a short time period in a time zone in which the amount of gas pressure change is large.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 14, 2019
    Assignee: Shimadzu Co.
    Inventors: Rui Kato, Hideaki Katsu, Fumiaki Otera
  • Patent number: 10074697
    Abstract: A solid-state image pickup unit includes: a substrate made of a first semiconductor; a substrate made of a first semiconductor; a photoelectric conversion device provided on the substrate and including a first electrode, a photoelectric conversion layer, and a second electrode in order from the substrate; and a plurality of field-effect transistors configured to perform signal reading from the photoelectric conversion device. The plurality of transistors include a transfer transistor and an amplification transistor, the transfer transistor includes an active layer containing a second semiconductor with a larger band gap than that of the first semiconductor, and one terminal of a source and a drain of the transfer transistor also serves the first electrode or the second electrode of the photoelectric conversion device, and the other terminal of the transfer transistor is connected to a gate of the amplification transistor.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: September 11, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Tetsuji Yamaguchi
  • Patent number: 10008524
    Abstract: A solid-state image pickup unit includes: a substrate made of a first semiconductor; a substrate made of a first semiconductor; a photoelectric conversion device provided on the substrate and including a first electrode, a photoelectric conversion layer, and a second electrode in order from the substrate; and a plurality of field-effect transistors configured to perform signal reading from the photoelectric conversion device. The plurality of transistors include a transfer transistor and an amplification transistor, the transfer transistor includes an active layer containing a second semiconductor with a larger band gap than that of the first semiconductor, and one terminal of a source and a drain of the transfer transistor also serves the first electrode or the second electrode of the photoelectric conversion device, and the other terminal of the transfer transistor is connected to a gate of the amplification transistor.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 26, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Tetsuji Yamaguchi
  • Patent number: 9591176
    Abstract: The skew angle of a document image is determined or estimated. The skew angle is determined or estimated by examining patterns found within a Fast Fourier Transform of a subset of the document image. This technique exploits the internal structure of the document designs to allow fast and accurate skew angle estimation, including for arbitrary document fragments.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: March 7, 2017
    Assignee: Authentix, Inc.
    Inventors: Joseph Pautler, Alan Hunt, Ralph Payne
  • Patent number: 9528935
    Abstract: This invention presents a Water Weather Station system and method for monitoring changes in water quality comprising a water quality monitoring unit, a digital image capturing unit, a digital image processing unit, a water quality display unit, a social media network or cloud collaborative network based water quality data storage, distribution and archiving unit and social media network based communication unit, an automatic water quality classification unit as well as a water quality reporting unit. Various components described in this invention are already well established. The current invention is based on a specific arrangement of these components to develop a Water Weather Station system and a method of using it for monitoring of changes in water quality in any source of water including city water supply, bottled water industry, swimming pools, water theme parks and other arenas where people interact with water resources.
    Type: Grant
    Filed: February 24, 2013
    Date of Patent: December 27, 2016
    Inventor: Haripriya Pulyassary
  • Patent number: 9287509
    Abstract: A quinacridone derivative may be represented by Chemical Formula 1, and a photoactive layer may include the same. A photoelectric conversion device may include a first electrode, a second electrode spaced apart from and configured to face the first electrode, and the photoactive layer including the quinacridone derivative between the first electrode and the second electrode.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: March 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon-Jeong Lim, Kyu Sik Kim, Kwang Hee Lee, Dong-Seok Leem, Kyung Bae Park
  • Publication number: 20150085287
    Abstract: The invention relates to an attachment for placement onto an optical sensor having a housing with an inlet opening for the entry of detection light into the attachment, a test light receiver for receiving light incident at the test light receiver and for a power measurement of the light incident at the test light receiver as test light and having a signal outputting device for outputting an output signal correlated to the test light power. The invention moreover relates to a combination of an optical sensor and such an attachment and to a method for operating an optical sensor which method can be carried out with such an attachment.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventor: Martin WUSTEFELD
  • Publication number: 20150085286
    Abstract: Embodiments described herein generally relate to devices, systems and methods for measuring the dose remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a plurality of light sources which are disposed and configured to emit electromagnetic radiation toward the container. A plurality of sensors are located in the apparatus that are optically coupleable to the plurality of light sources and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light sources. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors. The processing unit is further operable to convert the received data into a signature representative of the electromagnetic radiation detected by the plurality of sensors.
    Type: Application
    Filed: July 17, 2014
    Publication date: March 26, 2015
    Inventors: Richard Whalley, James White
  • Patent number: 8922777
    Abstract: A method of calibrating an optical density sensor comprising calculating a first pigment solid density value of an ink solution using a current first electrical output signal value from a photodetector, a current second electrical output signal value from a photodetector, and a current lens gap value, calculating a second pigment solid density value of the ink solution using a previously measured first electrical output signal value, a previously measured second electrical output signal value, and a previously measured lens gap value, comparing the current first electrical output signal value, the current second electrical output signal value, and the current lens gap value with the previously measured first electrical output signal value, the previously measure second electrical output signal value, and the previously measured lens gap value, and comparing the first pigment solid density value with the second pigment solid density value.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: December 30, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zvi Shemer, Ziv Gilan, Niv Shemtov, Shlomo Harush, Natty Levy, Amit Porat
  • Patent number: 8873059
    Abstract: A method for assessing an interaction of a sample with light beams having different wavelengths, the method comprising: generating a light beam having a wavelength and being intensity modulated according to a modulation function to create an intensity modulation in the light beam; irradiating the sample with the light beam; detecting a response light from the sample, the response light being released by the sample when the sample is irradiated with the light beam, the response light having intensity fluctuations caused by the intensity modulation; using the intensity fluctuations in the response light to identify the modulation function and associate the wavelength and the response light to each other; assessing the interaction of the sample with the light beam using the response light; stopping irradiating the sample with the light beam and performing the previous step with at least one other light beam having a different wavelength.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: October 28, 2014
    Assignee: Genia Photononics Inc.
    Inventor: Alain Villeneuve
  • Patent number: 8817258
    Abstract: Embodiments described herein generally relate to devices, systems and methods for measuring the dose remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a plurality of light sources which are disposed and configured to emit electromagnetic radiation toward the container. A plurality of sensors are located in the apparatus that are optically coupleable to the plurality of light sources and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light sources. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors. The processing unit is further operable to convert the received data into a signature representative of the electromagnetic radiation detected by the plurality of sensors.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 26, 2014
    Assignee: Common Sensing Inc.
    Inventors: Richard Whalley, James White
  • Patent number: 8711342
    Abstract: A joulemeter is capable of non-destructively measuring multiple characteristics of a laser beam. The joulemeter comprises a series of parallel probe beams, which are directed though a transparent media adjacent to an absorbing media that the tested beams pass through. Arrays of optical sensors or a chirp sensor are used to intercept and measure deflections the probe beams. A control unit renders measurements on selected properties of the laser.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: April 29, 2014
    Assignee: The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc.
    Inventors: William Rowe Elliott, Randolph D. Glickman, Norman Barsalou, Saher M. Maswadi
  • Patent number: 8705036
    Abstract: The invention relates to a method and device for determining the static and/or dynamic scattering of light. In the method, a plurality of different zones within a sample vessel (6) is illuminated during various time periods, wherein light is scattered on the sample. The scattered light is detected by means of a plurality of detectors (11, 12, 13, 14), wherein during the implementation of the method each detector captures scattered light from a plurality of different zones, and during a time period each detector detects scattered light from one zone and generates a signal. Said signals are transmitted to an electronic evaluation unit and are processed by said unit, wherein in each case those signals which are generated by the same detector and result from the detection of scattered light from the same zone are processed together.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: April 22, 2014
    Assignee: ALV-Laser Vertriebsgesellschaft mbH
    Inventor: Rainer Peters
  • Patent number: 8582103
    Abstract: The present invention creates a spectrometer (1; 1?) for measuring the concentration of at least one analyte in a fluid sample (2; 2?), with a light source (3; 3?) to generate a light beam (4; 4?), with a photosensor (5; 5?) to receive the light beam (4; 4?), and with a measurement length (6; 6?), in which the fluid sample (2; 2?) can be placed, in the beam path of the light beam (4; 4?), the measurement length (6; 6?) being provided in changeable form.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: November 12, 2013
    Assignee: IFE Innovative Forschungs- und Etwicklungs GmbH & Co. KG
    Inventors: Thomas Willuweit, Achim Sack, Ralf Griesbach
  • Publication number: 20130278934
    Abstract: A method for image sticking inspection of a light-transmissive device is disclosed. The light-transmissive device is responsive to application of a voltage to electrodes thereof to adjust light transmission characteristics. The method includes: providing light for passage through the light-transmissive device; applying a first alternating current (AC) voltage to the electrodes; applying a direct current voltage to the electrodes; and applying a second AC voltage to the electrodes, and measuring intensity of the light passing through the light-transmissive device during application of the second AC voltage.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 24, 2013
    Applicant: Daxin Materials Corp.
    Inventors: Min-Ruei TASI, Li-Hsin CHANG, Chih-Chun HSU, Kuan-Ming LIN
  • Publication number: 20130250302
    Abstract: An optoelectronic sensor (10) has a circumferential front screen (42) comprising a curvature both in a circumferential direction and in a transverse height, thus focusing light reflected at the inside of the front screen (42). Test light passes from a test light transmitter (50a-f) through the front screen (42) to a reflector (52a-f) and subsequently onto a test light receiver (56a-b). A decreasing light transmissivity of the front screen (42) is detected based on a decrease of a signal generated by the test light in the test light receiver (56a-b). The test light receiver (56a-b) is arranged on a same side of the front screen (42) as the reflector (52a-f) such that the test light path (54a-f) leads from the reflector (52a-f) via reflection on the inside of the front screen (42) to the test light receiver (56a-b).
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Applicant: SICK AG
    Inventor: Joachim KRAMER
  • Patent number: 8537361
    Abstract: A testing system including shutter glasses and a testing device is disclosed. The shutter glasses include a left-eye panel and a right-eye panel. The shutter glasses generate an output signal according to a wireless signal. The testing device provides a trigger signal to the shutter glasses to control turn-on times of the left-eye panel and the right-eye panel. When a light passes through the turned-on panel, a penetrating light is generated. The wireless signal is provided by the testing device. The testing device determines whether the shutter glasses are normal according to the output signal and the penetrating light.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: September 17, 2013
    Assignee: Wistron Corp.
    Inventors: Chih-Li Wang, Ming-Jen Chan, Yi-Cheng Lee
  • Patent number: 8430666
    Abstract: A low pressure heater control system. In some embodiments a control is in electrical communication with a sensor having a view of a combustion chamber. The control calculates an average sensor value over each of a plurality of brief sampling periods based on a plurality of readings from the sensor. In some embodiments a reference point that may be at least based in part on an average of a plurality of average optical sensor values from earlier brief sampling periods is calculated and compared against the average optical sensor value from a recent brief sampling period to monitor for an abrupt combustion change. In some embodiments a peak-to-peak optical sensor value is also calculated over each of a plurality of brief sampling periods. In some embodiments the type of fuel being combusted is recognized and/or the fuel level approximated based on measured average and/or peak-to-peak optical sensor values.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: April 30, 2013
    Assignee: Procom Heating, Inc.
    Inventors: Stacy Clevenger, Craig Higginbotham, Eric Pitchford, Joseph Lee
  • Patent number: 8384901
    Abstract: The invention relates to the scan methods and means for tomographic examination of two-dimensional structure of planar objects. The invention aims at developing a method of studying nanodimensional or microscopic objects with a resolution of the order of 30 nanometer and means of implementation of such a method. The task in view is performed such that the scanning microscope comprises a radiation source 1, as well as, positioned along the radiation rays, an opaque screen 2 with a slit, an object stage 4 with a mobility device for disposing of and maneuvering with an object under examination within the scan plane 7, a radiation detector 8 connected to an information processing unit 9, wherein according to the embodiment, the opaque screen is supplied with at least one slit shutter 3 movable in the plane of the opaque screen, the slit shutter providing the variability of cross-sectional dimensions of the slit.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: February 26, 2013
    Assignee: OOO Tsentr Innovatsionnyh Tehnologii-Es
    Inventors: Mihail Aleksandrovich Yudakov, Yurii Petrovich Volkov, Aleksei Olegovich Manturov
  • Patent number: 8379208
    Abstract: The present invention includes systems and methods for quantitative and qualitative imaging of gases, vapors, fumes, and the like. In one embodiment, the system uses a moving, or a rotating filter for alternately capturing on-line and off-line images of a scene that potentially includes the target gas of interest. The moving, or rotating filter includes at least two filter segments for transmitting (a) wavelengths corresponding to a spectroscopic absorption feature for on-line elements of the target gas, and (b) nearby wavelengths not corresponding to a spectroscopic absorption feature for off-line elements of the target gas. An image processor executes an algorithm for transforming the collected on-line and off-line data, corresponding to different pixels in the imaging array, into an image map of path-integrated concentration, or concentration path lengths (CPLs). The systems and methods of the invention do not use active light sources to illuminate the target gas.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: February 19, 2013
    Assignee: Exelis, Inc.
    Inventors: Rulon Eugene Simmons, Jarett Levi Bartholomew
  • Publication number: 20130010298
    Abstract: An inspection of a closed carton for acceptable content fill may be provided by a transmitting unit and a receiving unit measuring intensity values of electromagnetic waves directed at the carton. A comparison of a reference intensity value to a measured intensity value may indicate whether the closed carton is filled correctly identifying missing contents such as the main product or a missing leaflet that may contain product instructions.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Inventor: Steven Antonacci
  • Patent number: 8339606
    Abstract: A portal or gateway that includes a detector comprising a chirped laser; an open optical sample cell and a detector for detecting light from the chirped laser that has passed through the cell. The chirped laser may be a quantum cascade laser.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: December 25, 2012
    Assignee: Cascade Technologies Limited
    Inventor: Iain Howieson
  • Publication number: 20120320378
    Abstract: A method of calibrating an optical density sensor comprising calculating a first pigment solid density value of an ink solution using a current first electrical output signal value from a photodetector, a current second electrical output signal value from a photodetector, and a current lens gap value, calculating a second pigment solid density value of the ink solution using a previously measured first electrical output signal value, a previously measured second electrical output signal value, and a previously measured lens gap value, comparing the current first electrical output signal value, the current second electrical output signal value, and the current lens gap value with the previously measured first electrical output signal value, the previously measure second electrical output signal value, and the previously measured lens gap value, and comparing the first pigment solid density value with the second pigment solid density value.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 20, 2012
    Inventors: Zvi Shemer, Ziv Gilan, Niv Shemtov, Shlomo Harush, Natty Levy, Amit Porat
  • Patent number: 8257982
    Abstract: A method and a system for jointly determining the content of a first chromophorous and fluorescent compound and a second chromophorous compound in a biological tissue (30). The determination of the content of the chromophorous and fluorescent compound (33) is carried out by optical measurement of the differential absorption of this chromophorous and fluorescent compound (33) and the determination of the content of the second chromophorous compound (34) is carried out by optical measurement of the fluorescence of the chromophorous and fluorescent compound (33). Optical radiations (11-14) are utilized which are suitably chosen in combination with at least one operation of filtering these radiations suited to using single detection (21) and measurement element for the two determinations.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: September 4, 2012
    Assignees: FORCE-A, Centre National de la Recherche Scientifique, Universite Paris Sud
    Inventors: Zoran Cerovic, Nicolae Moise, Yves Goulas, Jean-Luc Ayral
  • Patent number: 8227256
    Abstract: Two-color (two-photon) excitation with two confocal excitation beams is demonstrated with a Raman shifter as excitation light source. Two-color excitation fluorescence is obtained from Coumarin 6H dye sample (peak absorption=394 nm, peak fluorescence=490 nm) that is excited using the first two Stokes outputs (683 nm, 954 nm, two-color excitation=398 nm) of a Raman shifter pumped by a 6.5 nsec pulsed 532 nm-Nd:YAG laser (Repetition rate=10 Hz). The two Stokes pulses overlap for a few nanoseconds and two-color fluorescence is generateven with focusing objectives of low numerical apertures (NA?0.4). We observed the linear dependence of the two-color fluorescence signal with the product of the average intensities of the two Stokes excitation beams. The two-color fluorescence distribution is strongly localized around the common focus of the confocal excitation beams.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: July 24, 2012
    Inventors: Caesar A. Saloma, Wilson O. Garcia, Jonathan A. Palero
  • Publication number: 20120162651
    Abstract: A device to measure the amount of light able to transmit through a liquid. The device uses a light detector and light source mounted to a support mechanism such that the detector and light source define a path of light emitted by the light source and detected by the detector. The device uses a structure designed to surround a liquid to be tested such that the structure allows light to transmit through the structure and the liquid. An actuator engenders relative motion between the support mechanism and the structure such that at certain times the light propagating between the light source and the detector passes substantially through the structure and the liquid to be tested such that the amount of light able to transmit through the liquid is detected by the detector, and at other times the light propagates directly from the light source to the detector without passing through the structure or the liquid such that the amount of light emitted from the light source is directly detected by the detector.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 28, 2012
    Applicant: REAL TECH INC.
    Inventor: James Andrew Glover
  • Patent number: 8147026
    Abstract: A method and system for improved image quality using an image quality matching method is used to match the optical density of single prints produced on multiple print engines by first sensing the optical density of a first image produced on a first print engine and then sensing the optical density of a second image produced on a second print engine before comparing the optical densities and determining if they are substantially equal. If they are not equal set points and exposures are adjusted on one or both print engines until the differences between the optical densities is less than 0.05, preferably 0.03. The density is changed by adjusting the initial voltage on the primary imaging member of at least one print engine and/or by adjusting the exposure of the primary imaging member of at least one print engine.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: April 3, 2012
    Assignee: Eastman Kodak Company
    Inventors: Donald S. Rimai, Alan E. Rapkin
  • Patent number: 8076654
    Abstract: The present invention provides a surface inspection method and apparatus for inspecting a surface of a sample, in which a resistive film is coated on the surface, and a beam is irradiated to the surface having the resistive film coated thereon, to thereby conduct inspection of the surface of the sample. In the surface inspection method of the present invention, a resistive film having an arbitrarily determined thickness t1 is first coated on a surface of a sample. Thereafter, a part of the resistive film having the arbitrarily determined thickness t1 is dissolved in a solvent, to thereby reduce the thickness of the resistive film to a desired level. This enables precise control of a value of resistance of the resistive film and suppresses distortion of an image to be detected.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: December 13, 2011
    Assignee: Ebara Corporation
    Inventors: Masahiro Hatakeyama, Kenji Watanabe, Takeshi Murakami, Tohru Satake, Nobuharu Noji
  • Patent number: 8013998
    Abstract: The invention relates to a method and an arrangement (10) for detecting the penetration of optical radiation (12) in a sectional area (20) of a protective wall system (18) in which at least one receiver (22) is located. The receiver is connected to an evaluation circuit (24). To recognize the failure of an inner protective wall it is suggested that the outer wall (16) of the protective wall system has a breach (26) for a transmitter/receiver unit (28), consisting of a number of receivers (22) located on the circumferential side of a tubular jacket (30) and a number of transmitters (32) concentrically surrounding the receivers (22) in a circle.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: September 6, 2011
    Assignee: Ingenieurburo Goebel GmbH
    Inventor: Klaus R. Goebel
  • Patent number: 7889344
    Abstract: A device for measuring intensity of a transmitted light, includes a first measuring unit that measures a first intensity of a light transmitted through a medium on a conveying path in its thickness direction and outputs a first measured value; a second measuring unit that is arranged adjacent to the first measuring unit, measures a second intensity of the light transmitted through the medium in the thickness direction, and outputs a second measured value; and an operating unit that obtains a true measured value from the first measured value and the second measured value.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: February 15, 2011
    Assignee: Ricoh Company, Limited
    Inventor: Masaru Yamagishi
  • Patent number: 7850801
    Abstract: A defect detection method of a layered film having a polarizing plate and an optical compensation layer includes steps of: applying light from a light source arranged at the polarizing plate layer side of the film surface of the layered film; a step of imaging a transmitting light image of the layered film by an imaging unit arranged at the optical compensation layer side of the film surface; and a defect detection step for detecting a defect existing on the layered film according to the transmitting light image captured by the imaging unit. The imaging unit performs imaging via an inspection polarizing filter arranged on the optical path between the light source and the imaging unit and adjacent to the imaging unit; and an inspection phase difference filter arranged on the optical path between the light source and the imaging unit and between the inspection polarizing filter and the layered film.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 14, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Takamasa Kobayashi, Michihiro Hagiwara, Yuuki Yano, Kouji Shizen
  • Patent number: 7830519
    Abstract: A device for non-invasively measuring concentration of one or more analytes in a living subject or a biological sample, wherein the device includes several light sources, a system for controlling the timing and intensity of the light source outputs, a system for passing the light through the subject or sample, a system for measuring the amount of light transmitted, and a system for relating the measurement to the concentration of the analyte in question. The light sources are narrow band sources at different wavelengths, and are capable of being rapidly switched between two levels of intensity. The actual number of light sources required and the wavelengths of the sources are dependent upon the specific analyte being measured.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: November 9, 2010
    Assignee: Vivum Nexus LLC
    Inventors: Christopher D. Mah, Joel Orlinsky, Dilip Mehta, Dean Milani
  • Publication number: 20100277736
    Abstract: The invention relates to a method and an arrangement (10) for detecting the penetration of optical radiation (12) in a sectional area (20) of a protective wall system (18) in which at least one receiver (22) is located. The receiver is connected to an evaluation circuit (24). To recognize the failure of an inner protective wall it is suggested that the outer wall (16) of the protective wall system has a breach (26) for a transmitter/receiver unit (28), consisting of a number of receivers (22) located on the circumferential side of a tubular jacket (30) and a number of transmitters (32) concentrically surrounding the receivers (22) in a circle.
    Type: Application
    Filed: November 8, 2007
    Publication date: November 4, 2010
    Applicant: INGENIEURBURO GOEBEL GMBH
    Inventor: Klaus R. Goebel
  • Patent number: 7817275
    Abstract: A scanning optical microscope, including: a light source to generate a beam of probe light; collimation optics to substantially collimate the probe beam; a probe-result beamsplitter; a long working-distance, infinity-corrected objective; scanning means to scan a beam spot of the focused probe beam on or within a sample; relay optics; and a detector. The collimation optics are disposed in the probe beam. The probe-result beamsplitter is arranged in the optical paths of the probe beam and the resultant light from the sample. The beamsplitter reflects the probe beam into the objective and transmits resultant light. The long working-distance, infinity-corrected objective is also arranged in the optical paths of the probe beam and the resultant light. It focuses the reflected probe beam onto the sample, and collects and substantially collimates the resultant light. The relay optics are arranged to relay the transmitted resultant light from the beamsplitter to the detector.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 19, 2010
    Assignee: University of Delaware
    Inventor: Sylvain G. Cloutier
  • Patent number: 7718948
    Abstract: To monitor light pulses from a light source, such as a laser, sense signals are provided to a photosensing component or array, causing photosensing during a series of one or more sense periods for the light pulse. Each light pulse can be provided through a transmission structure, such as a layered structure, that provides output light with an energy-dependent position on the photosensing component. A pulse's sensing results can be used to obtain a set of one or more differential quantities; for example, with a photosensing array, two cells of the array can be read out and compared. For a narrow band light pulse, a transmission structure can provide a spot on the photosensing component, and the light spot position can be sensed.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: May 18, 2010
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Peter Kiesel, Oliver Schmidt
  • Patent number: 7642766
    Abstract: The invention relates to electronic circuits for measuring, by synchronous detection, weak signals whose reference level is not well known and is subject to large fluctuations. A first correlated double sampling is performed between a time T1 situated just before the start of the measurement pulse and a time T2 situated just before the end of the measurement pulse; subsequently, a second correlated double sampling is performed between time T2 and a time T3 situated after the end of the measurement pulse. Finally, the difference between signal levels coming from the two measurements is taken, this difference being a representation of the signal value Vm considered with respect to a reference level that is intermediate between the reference levels at times T1 and T3.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: January 5, 2010
    Assignee: Atmel Grenoble
    Inventors: Thierry Masson, Fabrice Salvi
  • Patent number: 7606449
    Abstract: In a method and system for compensating for contamination of a switch or of a load circuit connected to the switch in a switch circuit, on/off signal levels are obtained corresponding to on/off states of said switch based on a polling signal which turns said switch on and off. With each polling signal, the on signal level is compared with the off signal level to determine whether the signal levels differ by more than a defined amount indicating unacceptable switch or switch load circuit contamination. Based on said comparison, a switch or switch load circuit contamination indication output signal is provided indicating whether or not the switch or the switch load circuit has been unacceptably contaminated. This signal is used by said switch circuit for continued operation of said switch circuit or for taking a corrective action if unacceptable switch or switch load circuit contamination is determined.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 20, 2009
    Assignee: Capable Controls, Inc.
    Inventors: Paul D. Paluck, Doug Jacobson
  • Publication number: 20090201506
    Abstract: There is provided a molecularity measurement instrument capable of working out the number of molecules in a sample by comparing a measured value of a light quantity with a theoretical light quantity per a single molecule, and a molecularity measurement method using the same. The molecularity of the sample is quantitatively estimated on the basis of a light quantity having correlation with the molecularity. The molecularity measurement method comprises the step of working out a theoretical light quantity per a single molecule, the step of measuring a light quantity of the sample by use of an image detector, and the step of working out the molecularity of the sample on the basis of a ratio of the light quantity of the sample to the theoretical light quantity as worked out.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 13, 2009
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Takeo TANAAMI, Hidetoshi AOKI, Saya SATOU, Yumiko SUGIYAMA
  • Publication number: 20090168064
    Abstract: In a method and apparatus for measuring the optical absorption of samples having a light source (1), a photoelectric converter (8), a measurement beam path extending between the light source (1) and the converter (8), in which path the sample to be examined is arranged, a reference beam path extending between the light source (1) and the converter (8), in which path a reference sample is arranged, and a motor-driven chopper disc (10), the chopper disc (10) is configured with a first number of first openings (15) unblocking only the measurement beam path and a second number of second openings (16) unblocking only the path for the reference beam.
    Type: Application
    Filed: April 10, 2007
    Publication date: July 2, 2009
    Applicant: EMERSON PROCESS MANAGEMENT GMBH & CO OHG
    Inventors: Albert Randow, Helmut Dandl, Hans Krause
  • Patent number: 7551285
    Abstract: A system for monitoring infrared absorption of each of a plurality of materials contained in an array has an infrared transparent substrate for the array of materials. An infrared radiation source irradiates the materials in the array with infrared radiation. An infrared detection system monitors material absorption of the infrared radiation by the materials. A method of monitoring the infrared absorption spectrum of a library of materials includes synthesizing an array of material on a substrate. The materials are irradiated with infrared radiation and the absorption of the infrared radiation by the materials is monitored for each material.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: June 23, 2009
    Assignee: Symyx Technologies, Inc.
    Inventors: Eric W. McFarland, William Archibald
  • Publication number: 20090021740
    Abstract: The present invention discloses an optical sensor for measuring blood gas, used to measure gas concentration in a liquid, comprising: an indicator solution; a first conduit for filling with the indicator solution wherein the first conduit passes through the liquid and the gas in the liquid can diffuse into the first conduit to react with the indicator solution so as to change the color of the indicator solution; a second conduit for receiving the reacted indicator solution in the first conduit; and a light emitter and a photodetector provided in opposition to each other at the two sides of the second conduit wherein the light emitter emits light towards the second conduit and the photodetector receives the light passing through the second conduit and the reacted indicator solution and thereby outputs a sensing signal depending on the received light intensity.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 22, 2009
    Applicant: CHUNG YUAN CHRISTIAN UNIVERSITY
    Inventors: Shen-Kan Hsiung, Jung-Chuan Chou, Tai-Ping Sun, Chih-Wei Lai, Nien-Hsuan Chou