By Acoustic Wave Patents (Class 348/198)
  • Patent number: 11237453
    Abstract: An optical assembly includes a volume grating configured to influence a beam direction of at least one light beam, and a switching device arranged in a beam path upstream of the volume grating. The switching device is configured to switch the beam direction and/or beam position of the at least one light beam from a first beam direction and/or beam position, in which the at least one light beam does not impinge on the volume grating at an acceptance angle of the volume grating, to a second beam direction and/or beam position, in which the at least one light beam impinges on the volume grating at the acceptance angle, and/or vice versa.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 1, 2022
    Assignee: LEICA MICROSYSTEMS CMS GMBH
    Inventors: Manuel Kremer, Dirk-Oliver Fehrer, Lars Friedrich
  • Patent number: 11032011
    Abstract: Disclosed are systems and methods for a quantum-analogue computing bit array consisting of a single qubit analogue, a serial two qubit analogue coupling, or parallel N qubit analogues. The quantum-analogue computing bit array comprises an elastic media having photo-elastic and photo-expansion effects, the adjustment of which allows a manipulation of one or more structural degrees of freedom within the elastic media and one or more temporal degrees of freedom within the elastic media. At least one analogue qubit is defined by one or more elastic waves within the elastic media. The quantum-analogue computing bit array further comprises a modulated light source oriented to illuminate the elastic media with a laser radiation to achieve a non-separable multi-phonon superposition of states within the elastic media.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 8, 2021
    Assignee: Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Pierre A. Deymier, Keith A. Runge
  • Patent number: 10551020
    Abstract: A vehicle lamp includes a light source that shines a laser beam and a laser scanning unit that has a single or plurality of acousto-optic devices, and the laser scanning unit can control an angle at which a laser beam that is incident on the acousto-optic devices is deflected. The vehicle lamp is strong enough to deal with vibrations and withstands the application to a motor vehicle.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: February 4, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshiaki Tsuda, Takeshi Masuda
  • Patent number: 10142601
    Abstract: An object of the present invention is to provide a device that is capable of presenting image information that is larger than an object by irradiating light onto the object that moves on a trajectory that is not known. An object tracking section controls line of sight direction so as to be directed towards a moving object. A rendering section irradiates a light beam in a direction along the line of sight direction. In this way the rendering section can irradiate the light beam onto the surface of the object. It is possible to present information, that has been rendered in a range that is larger than the surface area of the object, to an observer, utilizing an after image of the light beam that has been irradiated on the surface of the object.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 27, 2018
    Assignee: The University of Tokyo
    Inventors: Hiromasa Oku, Alvaro Cassinelli, Masahiko Yasui, Masatoshi Ishikawa
  • Patent number: 10091487
    Abstract: Parallel rays capture by a real image camcorder and capture emission by a real image television are made by parallel rays filter formed by multiple leveled liquid crystals with windows to filter distinct parallel rays in a field of vision. The image processing with image parameters is electronically carried out or by means of a device that displaces said image and controls a real image projection distance forwards or backwards a real image television. Introduction of a tridimensional image in a real image projection range is carried out by means of image reproduction with a distinct projection angle in a liquid crystal surface during a rays filtration step. Said tridimensional image introduced is controlled by a watcher.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: October 2, 2018
    Inventor: Roberto Massaru Amemiya
  • Patent number: 9411033
    Abstract: An apparatus includes a magnetic energy source to provide a magnetic signal and a detector to detect an acoustic energy signal from a sample stimulated by the magnetic energy signal. A method includes applying a magnetic signal to a biological sample, detecting an acoustic signal from the sample, and processing the acoustic signal to determine the electrical impedance distribution of the sample, and identify disease in the biological sample. A method includes applying a magnetic signal to a sample, detecting a magnetic or electrical signal within the sample, and processing the magnetic or electrical signal to reconstruct electrical impedance distribution of the sample.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: August 9, 2016
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Bin He, Yuan Xu, Xu Li
  • Patent number: 6538690
    Abstract: Pixel clock and beam scan timing of an acousto-optic scanner are controlled by an acoustic velocity-driven, phase locked loop containing an adjustable voltage controlled pixel clock generator, which is controlled by a detector that produces delayed and attenuated replica of the excitation waveform applied to an ATWL scanner used to scan a light beam across a workpiece. In a first embodiment of the invention, an end-of-cell transducer converts the pressure induced traveling lens into an electrical signal replica of the excitation input. In a second embodiment, an end-of-scan optical pick-off monitor is employed to detect the scanned optical spot as it crosses its field of view.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: March 25, 2003
    Assignee: Harris Corporation
    Inventors: Robert M. Montgomery, Thomas Otten, Reeder N. Ward, Mark T. Montgomery