Adjusting Optical System To Balance Brightness In Plural Paths Patents (Class 250/204)
  • Patent number: 11412162
    Abstract: An image sensor includes a plurality of pixels, each pixel including a photosensitive element, and a photo-signal converter adapted to provide, on a first output, a current signal linearly proportional to the intensity of light impinging on the photosensitive element and to provide, on a second output, a voltage signal logarithmic with the intensity of light impinging on the photosensitive element. Each pixel further includes a detector adapted to generate a trigger signal when a signal of the detector proportional to the voltage signal of the second output of the photo-signal converter exceeds a threshold, and a light-to-time converter adapted to measure and encode, in the time domain, light intensity on the photosensitive element. A light-to-time conversion cycle may be initiated by the light-to-time converter in response to receipt of the trigger signal.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 9, 2022
    Assignee: PROPHESEE
    Inventors: Thomas Finateu, Daniel Matolin, Christoph Posch
  • Patent number: 11257921
    Abstract: Semiconductor devices and methods of manufacturing semiconductor devices are provided. In embodiments a passivation process is utilized in order to reduce dangling bonds and defects within work function layers within a gate stack. The passivation process introduces a passivating element which will react with the dangling bonds to passivate the dangling bonds. Additionally, in some embodiments the passivating elements will trap other elements and reduce or prevent them from diffusing into other portions of the structure.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 22, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsin-Yi Lee, Hsuan-Yu Tung, Chin-You Hsu, Cheng-Lung Hung
  • Patent number: 11068706
    Abstract: The specifying step of specifying a camera to be adjusted among multiple cameras based on the history of a similarity for an object searched from images captured by the multiple cameras, the calculation step of calculating similarities for the images captured by the multiple cameras with respect to the object of the search target, and the addition step of adding an adjustment value to a similarity for an image captured by the specified camera among the similarities calculated at the calculation step are included.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Adachi
  • Patent number: 10904462
    Abstract: According to the present invention there is provided a vision sensor comprising, an array of pixels (101) comprising rows and columns of pixels, wherein each pixel has an address assigned thereto which represents the position of the pixel in the array, wherein each pixel in the array of pixels comprises a photodiode (103) which can receive light, and which can output current having an amplitude proportional to the intensity of the received light; a photoreceptor circuit (104) which is electronically connected to the photodiode, and which is configured to convert current which it receives from the photodiode into a voltage; a first storage capacitor (105), and at least a first switch which (106) is positioned between the first storage capacitor and an output of the photoreceptor circuit, wherein the first switch can be selectively closed to electronically connect the output of the photoreceptor circuit to the first storage capacitor, or selectively opened to electronically disconnect the output of the photorec
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: January 26, 2021
    Assignee: Sony Advanced Visual Sensing AG
    Inventor: Raphael Berner
  • Patent number: 10887535
    Abstract: The multimodal query-driven imager provides efficient coding and streaming of visual information acquired directly on the focal plane. The query-driven approach to visual event coding uses clocked time-division multiplexing to continuously scan the array, querying each pixel for threshold change events in pixel intensity.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 5, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Rajkumar Kubendran, Gert Cauwenberghs
  • Patent number: 10690594
    Abstract: An optical sensing and control device includes a light source emitting a light beam and an optical component in communication with the light beam. The optical component is configured to move the light beam in a plane. The plane extends into an area such that the light beam interacts with particles in the area producing a scattering of the light beam. The optical sensing and control device also includes a photodetector in communication with the particles within the plane. The photodetector configured to generate image data in response to the scattering of the light beam.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 23, 2020
    Assignee: OptikTechnik LLC
    Inventors: Johann Rudi Strickler, Jose Antonio Ramirez
  • Patent number: 10641693
    Abstract: The present disclosure provides systems, apparatuses, and methods for measuring submerged surfaces. Embodiments include a measurement apparatus including a main frame, a source positioned outside a pipe and connected to the main frame, and a detector positioned outside the pipe at a location diametrically opposite the source and connected to the main frame. The source may transmit a first amount of radiation. The detector may receive a second amount of radiation, determine a composition of the pipe based on the first and second amounts of radiation, and send at least one measurement signal. A control canister positioned on the main frame or on a remotely operated vehicle (ROV) attached to the apparatus may receive the at least one measurement signal from the detector and convey the at least one measurement signal to software located topside.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: May 5, 2020
    Assignee: Delta SubSea, LLC
    Inventors: Scott P. Dingman, Roger Warnock, Alessandro Vagata
  • Patent number: 10634891
    Abstract: A medical observation device that includes an evaluation value calculation unit configured to calculate a focus evaluation value indicating a focus state of a lens for each of two or more lenses, and a movement control unit configured to specify a lens movement parameter that is common to the two or more lenses on the basis of the focus evaluation value.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: April 28, 2020
    Assignee: SONY CORPORATION
    Inventors: Yuki Sugie, Takeshi Uemori, Kenji Takahasi, Daisuke Tsuru
  • Patent number: 10627515
    Abstract: A camera system includes a camera unit for capturing still or moving images of an object. The camera unit is adjustable in respect of at least one parameter relevant to the capture of the images based on a measurement signal. A measuring unit captures a distance between the object and the camera unit and includes a laser transceiver for emitting a laser signal and receiving a laser signal reflected by the object. An evaluation unit coupled to the laser transceiver provides the measurement signal. The measurement signal indicates the distance between the object and the camera unit. A lens system has at least two spaced apart lenses. The laser signal emitted by the laser transceiver passes through the lens system. At least one of the lenses is arranged in movable fashion such that the distance between the lenses is variably adjustable parallel to the laser signal transmission direction.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 21, 2020
    Assignee: ARNOLD & RICHTER SINE TECHNIK GMBH & CO. BETRIEBS KG
    Inventors: Julius Muschaweck, Michael Haubmann
  • Patent number: 10498977
    Abstract: According to the present invention there is provided a vision sensor comprising, an array of pixels (101) comprising rows and columns of pixels, wherein each pixel has an address assigned thereto which represents the position of the pixel in the array, wherein each pixel in the array of pixels comprises a photodiode (103) which can receive light, and which can output current having an amplitude proportional to the intensity of the received light; a photoreceptor circuit (104) which is electronically connected to the photodiode, and which is configured to convert current which it receives from the photodiode into a voltage; a first storage capacitor (105), and at least a first switch which (106) is positioned between the first storage capacitor and an output of the photoreceptor circuit, wherein the first switch can be selectively closed to electronically connect the output of the photoreceptor circuit to the first storage capacitor, or selectively opened to electronically disconnect the output of the photorec
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 3, 2019
    Assignee: Insightness AG
    Inventor: Raphael Berner
  • Patent number: 10482595
    Abstract: A digital microscopy method, comprising: obtaining data representative of a series of images of at least a portion of a cell sample, the images being captured by performing a depth scan using a digital microscope, the series of images being associated with a series of depth levels of the cell sample, wherein the portion encompasses a mapping field, and the mapping field comprises a plurality of focus analysis regions; and calculating, using the images, a focus configuration for at least two of the focus analysis regions within the mapping field, giving rise to data indicative of focus variations within the mapping field.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: November 19, 2019
    Assignee: S.D. Sight Diagnostics Ltd.
    Inventors: Noam Yorav-Raphael, Uri Wolfovitz, Joseph Joel Pollak
  • Patent number: 10451246
    Abstract: The invention relates to a microlens arrangement (12) and an illumination device (10) for uniformly illuminating of an area (F), with a light source (11) and a microlens arrangement (12). In order to illuminate the area (F) to be illuminated as homogeneously as possible, the at least one microlens (1) of the microlens arrangement (12) has an entrance face (2) which is shaped such that monochromatic light incident on the microlens (1) and propagating parallel to the optical axis (O) is refracted by the entrance face (2) such that back focal lengths (S1, S2, S3) of the light with the optical axis (O) increase with the height of incidence (E1, E2, E3).
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 22, 2019
    Assignee: Jabil Optics Germany GmbH
    Inventors: Eberhard Piehler, Theresa Kunz, Gertrud Blei, Rainer Fischer
  • Patent number: 10440296
    Abstract: Disclosed is a method for processing an asynchronous signal produced by a light sensor, the sensor having a pixel matrix disposed opposite a scene, the method including: receiving from the light sensor the asynchronous signal including, for each pixel of the matrix, successive events from the pixel; analysing the asynchronous signal using activity profiles as events are received in the asynchronous signal. The activity profile includes at least, for each pixel of the sensor, an activity value that decreases as a function of the time that has passed since the most recent event among the successive events from the pixel.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: October 8, 2019
    Assignees: UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE)
    Inventors: Ieng Sio-Hoi, Benosman Ryad, Shi Bertram
  • Patent number: 10361134
    Abstract: A method for performing a lithographic process over a semiconductor wafer is provided. The method includes coating a photoresist layer over a material layer which is formed on the semiconductor wafer in a track apparatus. The method further includes transferring the semiconductor wafer from the track apparatus to an exposure apparatus. The method also includes measuring a height of the photoresist layer before the removal of the semiconductor wafer from the track apparatus. In addition, the method includes measuring height of the material layer in the exposure apparatus. The method also includes determining a focal length for exposing the semiconductor wafer according to the height of the photoresist layer and the height of the material layer.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 23, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Chih Lai, Li-Kai Cheng, Shun-Jung Chen, Bo-Tsun Liu, Han-Lung Chang, Tzung-Chi Fu, Li-Jui Chen
  • Patent number: 10274434
    Abstract: A method includes optically interacting a bulk material or powder stored in a storage bin with an integrated computational element (“ICE”) configured to modify an electromagnetic radiation according to a characteristic of the bulk material or powder. The method also includes detecting the modified electromagnetic radiation with a detector, and producing an output signal correlated to a value for the characteristic of the bulk material or powder, and receiving and processing the output signal with a signal processor to yield a value for the characteristic of the bulk material or powder. Also, the method includes transmitting a message flagging the storage bin when it is determined that the bulk material or powder is not suitable for continued storage. The bulk material or powder includes a dry cement or a dry cement component.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 30, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kristin Katherine Holden, Robert Paul Freese
  • Patent number: 10145741
    Abstract: A heat source detection device includes a processor configured to calculate, as a single-wavelength temperature, one of a first temperature obtained by converting a first output output from the infrared sensor in accordance with an incident amount of infrared rays in a first infrared wavelength band into a temperature, a second temperature obtained by converting a second output from the infrared sensor in accordance with an incident amount of infrared rays in a second infrared wavelength band into a temperature and an average value of the first and second temperatures, and calculate a dual-wavelength temperature obtained by converting the ratio between the first and second outputs into a temperature; and to determine a temperature of the heat source based on the dual-wavelength temperature and determine a distance to the heat source from the infrared sensor based on a comparison result between the single-wavelength temperature and dual-wavelength temperature.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 4, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hironori Nishino, Yasuo Matsumiya
  • Patent number: 10001621
    Abstract: A focusing control device includes a filter processing unit 11a which performs first filter processing selected from among a plurality of kinds of filter processing on each of a first signal group output from a plurality of phase difference detection pixels 52A and a second signal group output from a plurality of phase difference detection pixels 52B, a correlation calculation unit 11b which performs correlation calculation of the first signal group after the first filter processing and the second signal group after the first filter processing, and a lens position control unit 11c which controls a position of a focus lens based on the result of the correlation calculation. The filter processing unit 11a selects the first filter processing from among the plurality of kinds of filter processing based on subject condition information.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: June 19, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Hitoshi Sakurabu, Kenshi Imamura
  • Patent number: 9971168
    Abstract: A method for adjusting a position of a first image stabilization unit and/or a second image stabilization unit of an optical system is provided. The method comprises the steps of detecting a movement of the optical system by means of an angle-of-rotation sensor and determining a bending angle of a first hinge part relative to a second hinge part of a folding bridge of the optical system. Furthermore, a correction angle is determined based on the bending angle. The first image stabilization unit is rotated about the correction angle relative to a first housing and/or the second image stabilization unit is rotated about the correction angle relative to a second housing.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 15, 2018
    Assignee: Carl Zeiss Sports Optics GmbH
    Inventor: Christian Bach
  • Patent number: 9959442
    Abstract: Systems and methods for providing multiple image fields or regions on a single, two-dimensional imaging sensor array of a data reader. A single sensor array may be divided into two or more imaging regions each of which may be used to render a separate view of an overall read volume. An image-side telecentric optical system may be utilized to divide the sensor array into the two or more imaging regions. A thin, high refractive index focal element (e.g., optical glass) may be positioned over at least one of the two or more imaging regions to provide multiple focus positions using a single telecentric optical system and a single sensor array. The multiple imaging regions may be used to capture images from different regions, and/or may be used produce a longer depth of field by combining overlapping depths of field of the multiple imaging regions.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 1, 2018
    Assignee: DATALOGIC ADC, INC.
    Inventor: WenLiang Gao
  • Patent number: 9846314
    Abstract: A method for adjusting a position of a first image stabilization unit and/or a second image stabilization unit of an optical system is provided. The method comprises the steps of detecting a movement of the optical system by means of an angle-of-rotation sensor and determining a bending angle of a first hinge part relative to a second hinge part of a folding bridge of the optical system. Furthermore, a correction angle is determined based on the bending angle. The first image stabilization unit is rotated about the correction angle relative to a first housing and/or the second image stabilization unit is rotated about the correction angle relative to a second housing.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 19, 2017
    Assignee: Carl Zeiss Sports Optics GmbH
    Inventor: Christian Bach
  • Patent number: 9836648
    Abstract: An iris biometric recognition module includes technology for capturing images of an iris of an eye of a person, whether the person is moving or stationary, and whether the person is located near the iris image capture device or at a distance from the iris image capture device. The iris biometric recognition technology can perform an iris matching procedure for, e.g., authentication or identity verification purposes. The iris biometric recognition module can be incorporated into, for example, a door lock assembly and other access controlled devices, mechanisms, and systems.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: December 5, 2017
    Assignee: Princeton Identity, Inc.
    Inventors: Steven N. Perna, John M. Margicin, Mark A. Clifton, Jongjin Kim, Bobby S. Varma, Stephen J. Piro, Barry E. Mapen, Kevin P. Richards, David Alan Ackerman, Ann-Marie Lanzillotto, David J. Wade, Timothy J. Davis, Michael P. Fleisch, Jitendra J. Bhangley, Glen J. Van Sant, James R. Bergen, John Timothy Green
  • Patent number: 9612449
    Abstract: An axially symmetric polarization conversion element that converts incident light into an axially symmetric polarized beam includes a reflection section having a shape obtained by rotating the cross section of a Fresnel rhomb wave plate along the direction of an optical axis around an axis that is parallel to the optical axis. The axially symmetric polarization conversion element converts the incident light into an axially symmetric polarized beam by utilizing two Fresnel reflections by the reflection section.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 4, 2017
    Assignees: Saitama Medical University, Utsunomiya University
    Inventors: Toshitaka Wakayama, Toru Yoshizawa, Yukitoshi Otani
  • Patent number: 9420246
    Abstract: A projection system includes a projection module, an infrared monitoring module, and a focusing device. Lights of a projection light source (100) pass through a light splitting element (500) and a first lens group (201), and then emit out; infrared lights from outside pass through the first lens group (201) and the light splitting element (500) to an infrared monitoring module (300). Only the first lens group (201) can move back and forth and a focusing device is provided for driving the first lens group (201) to move back and forth. Optical characteristics of a projection objective (200) and a monitoring objective ensure that, during moving of the first lens group (201) driven by the focusing device, the projection objective (200) focuses clearly, and an infrared monitoring image received by an induction chip (301) meets monitoring requirements synchronously.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: August 16, 2016
    Assignee: PIQS TECHNOLOGY (SHENZHEN) LIMITED
    Inventors: Qinglin Na, Yan Huang, Haohuang Mai, Haixiang Wang
  • Patent number: 9389409
    Abstract: An imaging system for digital stereo microscope is disclosed, wherein the system comprising two camera units with each camera unit comprises a lens and the two lenses of the two camera units are focused below the respective lens and optical axes of both lenses are arranged to focus at a same point; a main controller configured to provide both sensors with a common trigger signal for outputting image data and a common pixel reference clock signal for each sensor to generate its own pixel clock signal; a synchronous synthesizer for generating synthesized image data with left eye image data located on the left side and the right eye image data located on right side by synchronizing and synthesizing the left eye data and the right eye image data output by the respective sensor; the synthesized image data is compresses and encoded in the main controller to generate RGB image data corresponding to parallel image data; a stereoscopic display convertor for receiving the RGB image data and converting the received RGB
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: July 12, 2016
    Assignee: GUANGZHOU JINGHUA OPTICAL & ELECTRONICS CO., LTD.
    Inventor: Denghai Xia
  • Patent number: 9383309
    Abstract: The present invention is thus directed to an automated system of varying the optical path length in a sample that a light from a spectrophotometer must travel through. Such arrangements allow a user to easily vary the optical path length while also providing the user with an easy way to clean and prepare a transmission cell for optical interrogation. Such path length control can be automatically controlled by a programmable control system to quickly collect and stores data from different path lengths as needed for different spectrographic analysis. Moreover, the system utilizes configured wedge shaped windows to best minimize the reflections of light which cause periodic variation in transmission at different wave lengths (commonly described as “channel spectra”). Such a system, as presented herein, is able to return best-match spectra with far fewer computational steps and greater speed than if all possible combinations of reference spectra are considered.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 5, 2016
    Assignee: Thermo Electron Scientific Instruments LLC
    Inventor: John Magie Coffin
  • Patent number: 9207444
    Abstract: In one example embodiment, a focusing device generates a first image associated with a sample having a first irregularity. The focusing device determines a second irregularity based on the generated first image. In this embodiment, the determined second irregularity corresponds to the first irregularity. For a lens, the focusing device determines a focusing position based on the determined second irregularity.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: December 8, 2015
    Assignee: Sony Corporation
    Inventors: Takashi Yamamoto, Nobuhiro Kihara
  • Patent number: 9103872
    Abstract: A highly adaptive thermal properties measurement system and measuring method thereof, for measuring various thermal property values of a device under test without actually lighting up the device under test, are disclosed. The measurement system includes a light source unit, a light modulation module, a holding unit, a thermal reflection unit, a thermal signal capture unit, and a control and computation unit. A light field provided from the light source unit is first modulated by the light modulation module for its distribution of intensity, and then illuminates on the device under test such that the device under test is heated in a specific mode so as to simulate a temperature distribution of the device under test in a state of continuous operation. Further, the control and computation unit computes various thermal property values of the device under test based on a top-surface thermal signal and a bottom-surface thermal signal captured by the thermal signal capture unit.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: August 11, 2015
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventor: Te-Yuan Chung
  • Patent number: 9086387
    Abstract: A method of determining a parameter of a wafer is disclosed. Light is propagated through a waveguide disposed in the wafer. A first measurement of optical power is obtained at a first optical tap coupled to the waveguide and a second measurement of optical power is obtained at a second optical tap coupled to the waveguide using a photodetector placed at a selected location with respect to the wafer. A difference in optical power is determined between the first optical tap and the second optical tap from the first measurement and the second measurement. The parameter of the wafer is determined from the determined difference in optical power.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: July 21, 2015
    Assignee: International Business Machines Corporation
    Inventors: Solomon Assefa, Douglas M. Gill, Jessie C. Rosenberg
  • Publication number: 20140326854
    Abstract: The invention relates to a photoarray (1), comprising: a plurality of cells (10), wherein each of said cells (10) comprises a means (20)that is configured to generate a photocurrent (I) being proportional to the intensity (L) of the light impinging on the respective cell (10), and wherein each of said cells (10) comprises a change detection circuit (100) connected to the respective means (20) for generating the photocurrent (I), which change detection circuit (100) is configured to generate an output signal merely in case a change event occurs at which said intensity (L) changes by a threshold amount (T, T?) since the preceding change event from the respective cell (10). According to the invention said means (20) for generating said photocurrent (I) is additionally also used to estimate the magnitude of the said photocurrent (I) being a measure of the brightness of the light at the respective cell (10).
    Type: Application
    Filed: December 19, 2012
    Publication date: November 6, 2014
    Applicant: UNIVERSITAT ZURICH
    Inventors: Tobias Delbruck, Raphael Berner
  • Publication number: 20140299743
    Abstract: Universal linear components are provided. In general, a P input and Q output wave combiner is connected to a Q input and R output wave mode synthesizer via Q amplitude and/or phase modulators. The wave combiner and wave mode synthesizer are both linear, reciprocal and lossless. The wave combiner and wave mode synthesizer can be implemented using waveguide Mach-Zehnder modulator technology. This device can provide any desired linear transformation of spatial modes between its inputs and its outputs. This capability can be generalized to any linear transformation at all by using representation converters to convert other quantities (e.g., polarization, frequency) to spatial mode patterns. The wave combiner and wave mode synthesizer are also useful separately, and can enable applications such as self-adjusting mode coupling, optimal multi-mode communication, and add-drop capability in a multi-mode system.
    Type: Application
    Filed: November 27, 2013
    Publication date: October 9, 2014
    Inventor: David A.B. Miller
  • Patent number: 8441195
    Abstract: An illumination adjustment circuit includes a light sensitive unit, an amplification unit, a switch unit, and a light emitting unit. The switch unit includes a plurality of electronic switches with increasing threshold voltages. The light emitting unit includes a plurality of sets of light emitting diodes corresponding to the electronic switches. Each set of the light emitting diodes is connected to the amplification unit through one of the electronic switches corresponding thereto. The light sensitive unit detects the brightness of ambient light, outputting a first voltage to the amplification unit accordingly. The amplification unit amplifies the first voltage to a second voltage and outputs the second voltage to the switch unit, so that the electronic switches with the threshold voltages lower than the second voltage are turned on, and the set of light emitting diodes connected to the electronic switch becomes luminous.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: May 14, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ming-Chih Hsieh
  • Patent number: 8379283
    Abstract: A micromechanical element includes a movable functional element, a first retaining element, a second retaining element, a third retaining element, and a fourth retaining element. The first retaining element and the functional element are connected at a first junction, the second retaining element and the functional element are connected at a second junction, the third retaining element and the functional element are connected at a third junction, and the fourth retaining element and the functional element are connected at a fourth junction. In addition, the first retaining element and the second retaining element each include a piezoelectric driving element, the driving element of the first retaining element and the driving element of the second retaining element being configured to move the functional element in accordance with electric excitation.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: February 19, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Thomas Klose, Thomas Grasshoff, Holger Conrad
  • Patent number: 8295641
    Abstract: A reflectance image that represents a reflectance distribution, and an illuminance component image that represents an illuminance distribution are generated from an input image. A plurality of small regions, which are divided based on illuminance components of the generated illuminance component image, are specified. A quantized image is generated from the reflectance image for respective specified small regions. Regions having equal quantized pixel values are acquired in the quantized image. Representative pixel values for the respective acquired regions are acquired based on the illuminance component image. Quantized pixel values of the respective acquired regions are corrected using the acquired representative pixel values.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: October 23, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miho Ishigami, Ichiro Umeda
  • Patent number: 8269181
    Abstract: According to an embodiment, an avalanche pixel sensor includes a substrate having opposite first and second surfaces, first sensor elements operating in breakdown mode situated on the first surface of the substrate for detecting ionizing radiation from a radiation-emission source, second sensor elements operating in breakdown mode situated on the second surface of the substrate, the second sensor elements each paired with a corresponding first sensor element to experience substantially coincident breakdown in response to ionizing radiation. Logic elements are each electrically interconnected to a respective pair of first and second sensor elements for receiving a signal or signal representing the substantially coincident breakdown of the respective pair to be distinguished from a dark signal even in either of the pair of the first and second sensor elements.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: September 18, 2012
    Assignee: Positron Corporation
    Inventor: Valeri Saveliev
  • Patent number: 7943889
    Abstract: Disclosed is an apparatus for division and rearrangement of light from a source object. The apparatus splits the light from the source object, or image of the source object, and recombines it in a parallel, fashion to increase the efficiency of multiphoton microscopy in general and harmonic or fluorescence emission microscopy in particular. The apparatus includes a beam splitter configured to split a light beam into at least two independent light paths to yield a first light path and a second light path; a first beam focuser configured to direct and focus the first light path onto a focal plane; and a second beam focuser configured to direct and focus the second light path onto the same or different focal plane to which the first light path is focused; and wherein the first and second light paths may be superimposed upon one another at a common focal plane or directed independently to different positions.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: May 17, 2011
    Assignee: Prairie Technologies, Inc.
    Inventor: William I. Vogt
  • Patent number: 7679039
    Abstract: The invention provides an apparatus and method for determining the position of a radiation beam. The apparatus includes (a) a first reflective surface and a second reflective surface, the reflective surfaces being placed to form the reflective exterior of a wedge; (b) a first detector placed to detect radiation reflected from the first reflective surface, and (c) a second detector placed to detect radiation reflected from the second reflective surface. The method includes the steps of (a) directing a radiation beam to the reflective exterior of a wedge formed by a first reflective surface and a second reflective surface; (b) selectively detecting radiation reflected from the first reflective surface; (c) selectively detecting radiation reflected from the second reflective surface; and (d) determining the position of the radiation beam based on the difference in the amount of radiation detected from each surface.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: March 16, 2010
    Assignee: The Institute for Systems Biology
    Inventors: Gerrit J. van den Engh, Peter I. Nelson
  • Patent number: 7675013
    Abstract: An image displaying apparatus displays a color image with favorable quality on a predetermined surface. A light source unit emits light beams within different wavelength ranges optically modulated by image information. A light combining unit combines light beams from the light source unit into a light beam. A scanning unit scans a scanned surface with the light beam from the light combining unit and forms an image thereon. A controlling unit synchronously controls the scanning unit and the light source unit. A dividing unit divides a light beam into more than one light beam within an arbitrary optical path on light-incident side of the scanning unit. A receiving unit and adjustment unit adjust quantity of light emission of one or more light source units based on the light quantity received by the receiving unit on one of the optical paths divided by the dividing unit.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: March 9, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Kobayashi, Keiichiro Ishihara, Yashuhiro Soeda
  • Patent number: 7640068
    Abstract: A surveying instrument performs tracking of a target by controlling an orientation of a measuring unit relative to the target in two different angular directions. The control in one angular direction is based on detected light intensities which are modulated according to a first time pattern, and control of the orientation in the other angular direction is based on detected light intensities modulated according to a second time pattern just different from the first time pattern.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: December 29, 2009
    Assignee: Trimble AB
    Inventors: Johan Johnson, Anneli Utterback
  • Patent number: 7586079
    Abstract: The invention may be embodied as a glare detection system or as a method of detecting glare. In a system according to the invention, there may be a light receiving surface, a first input channel, a second input channel, a glare signaling circuit and a glare reducing circuit. The first input channel may provide an indication of the amount of light impinging on a first portion of the light receiving surface. The second input channel may provide an indication of the amount of light impinging on a second portion of the light receiving surface. The glare signaling circuit (“GSC”) may have a first input port in communication with the first input channel, a second input port in communication with the second input channel, a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface.
    Type: Grant
    Filed: May 13, 2006
    Date of Patent: September 8, 2009
    Assignee: Dynamic Eye, Inc.
    Inventors: Christopher Mullin, Albert H. Titus, Kiriti Bhagavathula
  • Publication number: 20080149810
    Abstract: A method and system for adjusting a light source that is capable of displaying light of different colors receives inputs from various sources and provides an output color selection signal. The output color selection signal is applied to the light source to adjust the intensity and color thereof.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 26, 2008
    Applicant: Mag-E Tech, Inc.
    Inventors: Alfred Tracy, Leonard C. Bryan, Paul L. Culler
  • Patent number: 7045974
    Abstract: A system for the throughput detection and feedback of optical energy for making sure of white balance of the LED array in a flat fluorescent light source when the LED array in emitting light by respectively connecting in series a selected LED lamp respectively from RGB LED groups in an LED array to an optical energy sensor to convert optical energy into equivalent amperage, then voltage analog signals to digital signals for a CPU to compare and solve the difference of optical energy to improve voltage output, which then regulated by a driver and fed back to the LED array.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: May 16, 2006
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Yi-Fang Lin, Ming-Hsiang Yu, Jyh-Chang Lin, Yun Yun Wang, Yen Chuan Chu, Ying-Fu Wang
  • Patent number: 6974940
    Abstract: An anti-glare rearview mirror assembly and a reflectance control method thereof are disclosed. The assembly includes an electrochromic rearview mirrors, two rearward light sensors, and a comparative controller. The sensors receiving a first rearward light from a first specified region and a second rearward light from a second specified region at the same time point, respectively, wherein the first and second specified regions partially overlap with each other. The intensities of the first and second rearview mirror light are compared to obtain a light difference. The reflectance of the anti-glare rearview mirror is adjusted according to the light difference.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 13, 2005
    Assignee: Exon Science Inc.
    Inventors: Wen-Wei Su, Kuei-Hung Chen, Shun-Hsiang Hsiao
  • Patent number: 6875971
    Abstract: A wafer edge exposure apparatus is provided with an optical section for radiating exposure light onto the edge of a semiconductor wafer. The optical section is provided with a focus sensor for sensing a distance from the lower end of the optical section to the edge of the semiconductor wafer. There is provided a position control mechanism for moving the optical section vertically on the basis of a value detected by the focus sensor such that the distance matches a focal distance of the optical section.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: April 5, 2005
    Assignee: Semiconductor Leading Edge Technologies, Inc.
    Inventor: Jeong Yeal Kim
  • Patent number: 6870147
    Abstract: A light stability testing device for conducting an accurate light stability test that permits an accurate ultraviolet irradiation and an accurate visible light irradiation, the device comprising an optical sensor having a visible light measuring sensor (5) for measuring the dose of visible light, and a ultraviolet measuring sensor (6) for measuring the dose of ultraviolet ray, an optical system having a total light regulating means (331) for regulating the absolute quantity of light emitted from a light source and a ultraviolet ray regulating means (335) for regulating the dose of ultraviolet ray in light regulated by the total light regulating means, and a control unit for controlling a total light control unit that controls the total light regulating means (331) by a signal from a visible light measuring sensor (5), and the ultraviolet ray regulating means (335) by a signal from the ultraviolet measuring sensor (6).
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: March 22, 2005
    Assignee: Nagano Science Equipment Mfg. Co., Ltd.
    Inventor: Hiroshi Tsukuda
  • Patent number: 6831262
    Abstract: There is disclosed a method of determining characteristic correction data from reference data values picked up through an image sensor by scanning a reference original a plurality of times per one photoelectric conversion element of the image sensor. A running mean value of the reference data values is calculated with respect to a respective one of the photoelectric conversion elements, and is served as low spatial frequency component data. High spatial frequency component data is obtained by subtracting the running mean values from the reference data values with respect to the respective one of the photoelectric conversion elements. Noise components are eliminated from the high spatial frequency component data by averaging only those data values of the high spatial frequency component data which are not less than AV−K&sgr; and not more than AV+K&sgr;, wherein AV is a mean value and &sgr; is a standard deviation of the high spatial frequency component data, and K is a predetermined constant.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: December 14, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kanji Nagashima
  • Patent number: 6665097
    Abstract: When sequentially reading a plurality of documents in an image reading apparatus using, for example, an automatic document feeder, the temperature inside the apparatus rises and the refractive index of a lens or the like in an optical system changes, causing focus and magnification errors. To address this, focus and magnification adjustments are made by reading a chart when a document reading operation is not being performed. On the other hand, during a document reading operation, the temperature inside the apparatus, especially, the temperature of the lens, is measured, and the focus and magnification are adjusted based on the measured temperature.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: December 16, 2003
    Assignee: Minolta Co., Ltd.
    Inventor: Yoshihiro Inagaki
  • Patent number: 6525303
    Abstract: A light pattern controller generates a pattern of continuous wave, modulated and/or pulsed light onto a face of a collimating element. The light beam is collimated by the collimating element and extends to a focusing element which focuses the collimated light onto an illumination field. A controller controls the light pattern controller or the light source to determine a shape of the pattern on the face of the collimating element. The illumination field is imaged by an electronic or digital camera having first and second fields. Each field captures an image by integrating light received from the illumination field over an integration period. The controller controls the light pattern controller and the light source, and/or the camera to ensure an even amount of illumination from each element of the light pattern focused on the illumination field is integrated by each field of the camera. The controller also controls the frequency, phase angle and pulse width of the light source.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: February 25, 2003
    Assignee: Mitutoyo Corporation
    Inventor: Paul G. Gladnick
  • Patent number: 6396873
    Abstract: Stereoscopic device including a lenticular lens layer and light sensor array, the lenticular lens layer includes a plurality of lenticular elements, the sight sensor array includes a plurality of light sensors, wherein selected ones of the light sensors detect light at a predetermined range of wavelengths and wherein at least selected others of the light sensors detect light at at least another predetermined range of wavelengths and wherein each of the lenticular elements is located in front of a selected group of the light sensors, thereby directing light from different directions to different light sensors within the selected group of the light sensors.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: May 28, 2002
    Assignee: Envision Advanced Medical Systems
    Inventors: Michael D. Goldstein, Avi Yaron, Shay Ghilai
  • Patent number: 6350977
    Abstract: Sampling points are generated selectively in a prescribed portion other than the pattern edge portion of a layout pattern used in a semiconductor manufacturing process based on an input that is data of the layout pattern. Simulation results of a pattern to be generated from the layout pattern are obtained for the respective sampling points. Pattern distortion amounts in the portion other than the pattern edge portion are detected by comparing the data of the layout pattern and the simulation results for the respective sampling points.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: February 26, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Hironobu Taoka
  • Patent number: 6008484
    Abstract: Observer tracking is provided in an autostereoscopic 3D display, for instance of the type including an LCD panel 2 behind a parallax barrier. An infrared sensor such as a position sensitive detector is provided on the LCD panel. The parallax barrier extends over the detector so as to form an image of the observer or of a reflective target worn by the observer on the detector. The parallax barrier is moved so as to keep the image at a constant position on the detector. The viewing zone thus track the observer.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: December 28, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Graham John Woodgate, Richard Robert Moseley, Jonathon Harrold