Patents Examined by Stephone Allen
  • Patent number: 9717407
    Abstract: A method and an apparatus for testing night vision are disclosed. At least one visual mark is presented to a test person having an open pupil from a distance of several meters. The visual mark is configured as a light point, and a visual impression of the test person is determined by means of the visual mark. The apparatus comprises means for opening a pupil of a test person, in particular a darkened room. An examination position for the test person and a presentation apparatus for visual marks arranged at a distance of several meters from the examination position are also provided. The presentation apparatus comprises at least one point-shaped light source. A light beam thereof is directed towards the examination position. Means are provided for determining a visual impression of the test person with the help of the visual marks.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 1, 2017
    Assignee: CARL ZEISS VISION GMBH
    Inventors: Jesus Miguel Cabeza Guillen, Timo Kratzer
  • Patent number: 8610985
    Abstract: A disclosed optical scanning device includes a light source unit configured to emit a laser beam; an oscillating mirror configured to deflect the laser beam from the light source unit; a scanning/imaging optical system configured to focus the deflected laser beam on a target surface; and plural light-receiving elements configured to receive the laser beam in a scanning area of the laser beam, the position of the oscillating mirror being adjusted such that time intervals between output pulses in output signals of the respective light-receiving elements become substantially the same between the light-receiving elements and/or widths of the output pulses become substantially the same between the light-receiving elements.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 17, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Tsuchiya, Tomohiro Nakajima, Mitsuo Suzuki
  • Patent number: 8610996
    Abstract: A tunable multiple laser pulse scanning microscope and a method of operating the same is described, applying two pulsed laser beams with distinct wavelengths incident on a scanning spot of a sample to be imaged simultaneously or at a specific time delay. The microscope comprises at least two pulsed laser light sources emitting laser light of distinct wavelengths, an acousto-optic tunable filter (AOTF) for tuning at least one of the laser pulses, a delay stage provided upstream of the AOTF, and an actuator for moving delay stage depending on the time delay. As a result, the wavelength of at least one type of pulses is tuned, and the delay between at least two pulses of distinct wavelengths is adjusted.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: December 17, 2013
    Assignee: Leica Microsystems CMS GmbH
    Inventors: Vishnu Vardhan Krishnamachari, William C. Hay
  • Patent number: 8599480
    Abstract: A laser scanning microscope has an illumination beam path and a detection beam path. A beamsplitter is provided which reflects the illumination light in direction of the sample and transmits the detection light in direction of the detection arrangement. An additional beamsplitter is provided for reflecting the illumination light and for transmitting the detection light, this additional beamsplitter being arranged in the illumination beam path downstream of the first beamsplitter in the illumination direction, and this additional beamsplitter substantially transmits the illumination light reflected at the first beamsplitter and the detection light, but acquires a wavelength range substantially different from the first beamsplitter with respect to its reflectivity.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: December 3, 2013
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Matthias Danckwerts, Ralf Wolleschensky, Joerg Steinert, Robert Hauschild, Stefan Wilhelm
  • Patent number: 8599468
    Abstract: An optical device that includes a wavelength-sensitive optical component, which has an associated thermal time constant, is described. Note that an operating wavelength of the wavelength-sensitive optical component is a function of several physical parameters including temperature. Moreover, the optical device includes a heating mechanism that provides heat to the wavelength-sensitive optical component. Furthermore, the optical device includes a driver circuit that provides a pulse-width modulated signal to the heating mechanism. Note that an average pulse-width modulated heat provided by the heating mechanism, and which corresponds to the pulse-width modulated signal, thermally tunes the wavelength-sensitive optical component to a target operating wavelength. Additionally, note that the target operating wavelength corresponds to a target operating temperature of the wavelength-sensitive optical component.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 3, 2013
    Assignee: Oracle International Corporation
    Inventors: Frankie Y. Liu, Dinesh D. Patil, Ronald Ho, Ashok V. Krishnamoorthy
  • Patent number: 8591048
    Abstract: A spatially efficient kinematic mirror mount for mounting a mirror or other optical element to a housing. The kinematic mirror mount may include three spaced-apart constraint structures, positioned at or near the outer perimeter or circumference of the mirror. The constraint structures constrain the mirror to lie within a plane, typically the x-y plane defined by the orientation of the housing, substantially without overconstraining the mirror. To accomplish this, each of the three constraint structures may constrain the mirror in the x-y plane by independently providing a tangential constraint to the mirror. The constraint structures may include a tab, coupled to the mirror by a flexure, and a fastening assembly for securing the tab to the housing.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: November 26, 2013
    Assignee: FLIR Systems, Inc.
    Inventor: John M. Wiltse
  • Patent number: 8587866
    Abstract: The optical apparatus includes a base member, a shift member holding an image stabilizing lens and movable in a direction orthogonal to an optical axis direction of the optical apparatus with respect to the base member, a biasing member biasing the shift member toward the base member in the optical axis direction, and an aperture stop unit disposed on a side opposite to the base member with respect to the shift member and adjusting an amount of light. The aperture stop unit includes a displacement preventing portion which makes contact with the shift member to prevent the shift member from being displaced toward the aperture stop unit.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoyuki Kudoh
  • Patent number: 8582206
    Abstract: A virtual-image projector comprises a laser configured to form a narrow beam, first and second dilation optics, first and second redirection optics each having a diffraction grating, and a controller. The first dilation optic is arranged to receive the narrow beam and to project a one-dimensionally dilated beam into the second dilation optic. The second dilation optic is arranged to receive the one-dimensionally dilated beam and project a two-dimensionally dilated beam. The first and second redirection optics are each operatively coupled to a transducer. The first redirection optic is arranged to direct the narrow beam into the first dilation optic at a first entry angle. The second redirection optic is configured to direct the one-dimensionally dilated beam into the second dilation optic at a second entry angle. The controller is configured to bias the transducers to vary the first and second entry angles.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: November 12, 2013
    Assignee: Microsoft Corporation
    Inventor: Adrian Travis
  • Patent number: 8582202
    Abstract: When it is detected that a solid immersion lens comes into contact with the semiconductor device, the lens is caused to vibrate by a vibration generator unit. Next, a reflected light image from the lens is input to calculate a reflected light quantity of the reflected light image, and it is judged whether a ratio of the reflected light quantity to an incident light quantity is not greater than a threshold value. When the ratio is greater than the threshold value, it is judged that optical close contact between the lens and the semiconductor device is not achieved, and the lens is again caused to vibrate. When the ratio is not greater than the threshold value, it is judged that optical close contact between the lens and the semiconductor device is achieved, and an observed image of the semiconductor device is acquired.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 12, 2013
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hirotoshi Terada, Hiroshi Tanabe
  • Patent number: 8576469
    Abstract: There are provided a light screening apparatus and a manufacturing method thereof. The light screening apparatus includes a substrate, a transparent electrode, a plurality of roll-up actuators and a plurality of light screening patterns. The substrate includes a light-transmitting region and the transparent electrode is formed on one surface of the substrate. Each roll-up actuator, which has opaque characteristics, is fixed on the circumference portion of the light-transmitting region and includes a fixing end and a moving part which extends from the fixing end. Gaps are formed between adjacent roll-up actuators, and the light screening patterns are formed on the substrate at locations corresponding to the gaps. The light-screening patterns prevent light incident through the gaps from being transmitted to the light-transmitting region.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Che-heung Kim, Seog-woo Hong
  • Patent number: 8573790
    Abstract: An optical element that includes a substrate having two surfaces, each of the surfaces having a micro-relief structure that includes numerous fine protrusions, and a film that includes one or more layers including a metal layer and that is formed on one of the micro-relief structures.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: November 5, 2013
    Assignee: Nikon Corporation
    Inventors: Yutaka Hamamura, Kiyoshi Kadomatsu, Yasutoshi Takada, Yoshiro Tani
  • Patent number: 8570630
    Abstract: A piezoelectric mirror device (11) comprises a frame portion (12) having a centrally located opening (13), a mirror portion (14) positioned at the opening (13), a pair of mirror support portions (15) adapted to support the mirror portion (14) rotatably relative the frame portion (12) and a pair of drive portions (16) that is a multilayer structure of lower electrodes (17), piezoelectric element (18) and an upper electrode (19). The mirror support portions (15) are formed of a material having a Young's modulus of up to 160 GPa, and the frame portion (12) includes a cutout (13a) at a part of a site wherein there are the drive portions (16) positioned. The cutout (13a) is in contact with the opening (13).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: October 29, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Shinji Maekawa
  • Patent number: 8559102
    Abstract: An infrared signal blinder that blocks infrared light signals from reaching an infrared receiver that is configured with an electronic device. The blinder includes a hollow body portion having an inner surface and an outer surface, and further having a first open end and second open end. The first open end is larger than the second open end. Further, a base portion is provided at the first open end or the second open end. The base portion includes a bore that is at least partially aligned with the first open end or the second open end. The infrared signal blinder is coupleable to an electronic device configured with an infrared receiver. The infrared signal blinder is configured to shield at least one communication signal from reaching the infrared receiver.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 15, 2013
    Inventors: Nelson M. Tuchman, Daniel S. Tuchman
  • Patent number: 8559106
    Abstract: A water-resistant polarizing film having an organic colorant having an anionic group, and organic nitrogen compounds. The organic nitrogen compounds include a first organic nitrogen compound having at least two nitrogen atoms in the molecule thereof, and a second organic nitrogen compound having at least two nitrogen atoms in the molecule thereof. The distance (A) between adjacent nitrogen atoms in the first organic nitrogen compound is shorter than the distance (B) between adjacent atoms of the nitrogen atoms in the second organic nitrogen compound.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: October 15, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Toru Umemoto, Toshimasa Nishimori, Tadayuki Kameyama
  • Patent number: 8547617
    Abstract: A component comprising a qubit and a controller for said qubit, said component comprising a quantum dot and an excitation portion configured to produce a neutral exciton state in said quantum dot to form said qubit, the component further comprising a measuring unit to make an optical measurement relating to the orientation of said state, wherein said controller comprises voltage source coupled to electrical contacts configured to apply a modulated electric field across said quantum dot, wherein the modulation is faster than the decay time of said neutral exciton state.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: October 1, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Anthony John Bennett, Richard Mark Stevenson, Andrew James Shields
  • Patent number: 8542442
    Abstract: The present invention relates to an isotropic zero-order diffractive color filter, to a method to manufacture an embossing tool and to a method to manufacture such a filter. The zero-order diffractive color filter comprises diffractive microstructures and a wave-guiding layer, wherein the diffractive microstructures possess a short range ordering over at least four times the period of the microstructures, and the diffractive microstructures possess a long range disordering over length scales of more than 100 ?m.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: September 24, 2013
    Assignee: Centre Suisse d'Electronique et de Microtechnique SA—Recherche et Developpement
    Inventors: Nicolas Blondiaux, Mickaël Guillaumee, Raphaël Pugin, Ross Stanley, Alexander Stuck, Harald Walter
  • Patent number: 8542422
    Abstract: An optical flip-flop comprises first (102) and second (104) flip-flop elements arranged to respectively provide first (output 1) and second (output 3) optical outputs. Each output is in one of a plurality of states, wherein switching the output from a relatively high power state to a relatively low power state has an associated falling edge transition time, and switching the output from a relatively low power state to a relatively high power state has an associated rising edge transition time. The rising edge transition time is greater than the falling edge transition time.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: September 24, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gianluca Berrettini, Antonio Malacarne, Luca Poti, Antonella Bogoni
  • Patent number: 8512492
    Abstract: An optical filter according to the invention includes: first and second substrates opposed to each other; first and second reflecting films provided to the first and second substrates; first and second bonding films provided to the first and second substrates; and first and second barrier films disposed on surfaces of the first and second reflecting films, wherein the first barrier film has a transmittance of ozone lower than a transmittance of ozone the first reflecting film has, and the second barrier film has a transmittance of ozone lower than a transmittance of ozone the second reflecting film has. Accordingly, the reflecting films are protected from ozone or ultraviolet radiation during the manufacturing process of the optical filter and thereby the optical filter characteristics is prevented from being deteriorated.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 20, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Yamazaki
  • Patent number: 8512493
    Abstract: A method of manufacturing an optical filter according to the invention includes the steps of forming a first bonding film in a first bonding area of a first substrate provided with a first reflecting film, forming a second bonding film in a second bonding area of a second substrate provided with a second reflecting film, irradiating the first bonding area with ozone or an ultraviolet ray using a first mask member, irradiating the second bonding area with ozone or an ultraviolet ray using a second mask member, and bonding the first bonding film and the second bonding film to each other to bond the first substrate and the second substrate to each other, thereby protecting the reflecting films from ozone or ultraviolet radiation to prevent the reflecting films from being deteriorated in the manufacturing process.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 20, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Yamazaki
  • Patent number: 8508848
    Abstract: The specification and drawings present a new apparatus and method for providing a wide field-of-view as well as illumination uniformity in exit pupil expanders (EPE) using stacked EPE substrates (or plates) with non-symmetric exit pupil expansion that use a plurality of diffractive elements for expanding the exit pupil of a display for viewing.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: August 13, 2013
    Assignee: Nokia Corporation
    Inventor: Pasi Saarikko