Oscillating Driver Patents (Class 359/199.1)
  • Patent number: 10347557
    Abstract: The wiring board includes an insulating substrate having a main surface, an external electrode on the main surface and an outer edge portion of the insulating substrate, and a dissipating metal layer on the main surface of the insulating substrate, the dissipating metal layer having a greater area than the external electrode if viewed in a plan, the dissipating metal layer being adjacent to the external electrode and having a slit. The slit has an opening at an outer periphery of the dissipating metal layer. The external electrode faces the opening.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 9, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Kouichi Kawasaki
  • Patent number: 10303044
    Abstract: A scanning mirror resonates on a first axis and moves on a second axis at a frequency dictated by a sync signal. The period of movement on the second axis is not necessarily an integer multiple of the period of movement on the first axis. A drive circuit excites movement of the mirror. The drive circuit adds a position offset to the signal that excites movement on the second axis. The position offset is capable of causing the resonant movement on the first axis to scan a substantially identical trajectory for at least a portion of each period on the second axis.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: May 28, 2019
    Assignee: Microvision, Inc.
    Inventors: Jonathan A. Morarity, Damon M. Domjan
  • Patent number: 10095155
    Abstract: An apparatus has a detection unit, a rotating polygonal mirror and a generation unit. The rotating polygonal mirror has reflecting surfaces and configured to deflect light. The detection unit outputs a first signal in accordance with detecting the light. The generation unit, based on the first signal, generates a second signal which is a main scanning synchronization signal for controlling a write start in a main scanning direction. The second signal has a first waveform and a second waveform. The first waveform does not correspond to a reference reflection surface. The second waveform corresponds to the reference reflection surface and is different to the first waveform.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 9, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuya Hotogi, Fumiaki Mizuno
  • Patent number: 9979269
    Abstract: A micromechanical component includes a mount; a drive body on which at least one coil device is disposed and which is connected to the mount by way of at least one spring such that the drive body can be set into a driving motion by an interaction of a current conducted through the at least one coil device and a magnetic field present at the at least one coil device; and a control element connected to the drive body such a manner that a setting of the drive body into a driving motion causes the control element to be set into a deflection motion with at least one motion component directed about a rotation axis. At least one connecting element disposes the drive body and control element relative to each other such that the rotation axis extends at a spacing from a center of gravity of the drive body.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: May 22, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Joerg Muchow, Helmut Grutzeck, Frederic Njikam Njimonzie, Zoltan Lestyan, Sebastian Reiss
  • Patent number: 9864164
    Abstract: An optical deflector includes a mirror rotatable around a rotating shaft of the optical deflector, the mirror including a base made of metal and a reflective surface, the reflective surface being parallel to an axial direction of the rotating shaft of the mirror. The mirror has a length that is twice a length from a center of the rotating shaft to the reflective surface, which is shorter than a length of the reflective surface in the direction of the rotating shaft.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: January 9, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Itami, Shigeaki Imai, Tadashi Nakamura
  • Patent number: 9733470
    Abstract: The underlying invention presents a device which connects a vibratably suspended optical element to at least two actuators mounted fixedly on one side via curved spring elements, wherein the actuators are implemented to cause the vibratably suspended optical element to vibrate via the curved spring elements. Both the actuators and the entire system may be implemented to be more robust and be operated more reliably due to the curved shaping of the spring elements.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 15, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Shanshan Gu-Stoppel, Hans Joachim Quenzer, Joachim Janes
  • Patent number: 9678333
    Abstract: A micromechanical mirror includes a mobile mass carrying a mirror element and provided in a body including semiconductor material. A driving structure is coupled to the mobile mass to cause a scanning movement thereof. The driving structure is configured to generate a combination of a two or more sinusoidal resonant modes in the micromechanical mirror at respective resonant frequencies. This combination approximates a scanning pattern of the mobile mass defined by a linear function which may, in particular, be a triangular shaped function.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: June 13, 2017
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventor: Nir Goren
  • Patent number: 9612435
    Abstract: An optical scanning device includes an optical fiber, a holding member cantilevering the optical fiber, a first driving device placed on the distal end of the optical fiber and making the optical fiber vibrate in a first direction, and a second driving device placed between the holding member for the optical fiber and the first driving device and making the optical fiber vibrate in a second direction which crosses the first direction.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 4, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Atsuyoshi Shimamoto
  • Patent number: 9523909
    Abstract: A resonance locking system for a pico-projector, the system comprising a resonance frequency sensor operative for sensing change in resonance frequency of a miniature mechanical device (10) including a moving mirror assembly having a driving frequency, by comparing a current resonance frequency to a reference; and a feedback loop changing at least one aspect of use of the miniature moving mirror assembly responsive to a current value of the resonance frequency measured by the sensor.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: December 20, 2016
    Assignee: MARADIN TECHNOLOGIES LTD.
    Inventors: Matan Naftali, Eytan Keydar, Tal Langer, Sharon Hornstein
  • Patent number: 9519137
    Abstract: An optical deflector includes a mirror, an inner frame surrounding the mirror, first and second torsion bars coupled between the mirror and the inner frame, first and second inner piezoelectric actuators coupled between the first and second torsion bars supported by first and second inner coupling portions to the inner frame, and an outer frame surrounding the inner frame. The inner frame is supported by first and second outer coupling portions to the outer frame. A circumferential rib is provided on a rear surface of the inner frame. A first branch rib is provided on a rear surface of the first outer coupling portion, and a second branch rib is provided on a rear surface of the second outer coupling portion.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 13, 2016
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Takanori Aimono
  • Patent number: 9423591
    Abstract: A metal elastic member to be used for beams 4 for supporting a movable unit 3 at respective ends with respect to a fixed unit 2 in a miniature machine including at least one movable unit 3, the fixed unit 2 and the beams 4 , and capable of swinging the movable unit about an axis P with the beams 4 serving as torsional rotation axes, includes a metal bar 4a having a predetermined length, a fixed unit pad 4b that is provided at a first end of the metal bar 4a and is fixed to the fixed unit 2, and a movable unit pad 4c formed on the other end side of the metal bar 4a and fixed to the movable unit 3. At least the metal bar 4a is molded to have a sectional area of 1 mm2 or less by using a physical or chemical processing method excluding a mechanical processing method and swings the movable unit 3 within a frequency of 150 Hz to 500 Hz.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 23, 2016
    Assignee: HOKUYO AUTOMATIC CO., LTD.
    Inventors: Toshihiro Mori, Norihiro Asada, Kazuo Takai
  • Patent number: 9420357
    Abstract: Disclosed are a method and an apparatus for selecting a wavelength by a wavelength tunable optical receiver. The method of selecting a wavelength of a wavelength tunable optical receiver includes: receiving, by the wavelength tunable optical receiver, an optical signal from a wavelength tunable optical transmitter; filtering, by the wavelength tunable optical receiver, the optical signal through a low frequency band electrical signal filter, and obtaining a low frequency signal; determining, by the wavelength tunable optical receiver, whether the low frequency signal is a valid signal based on a current value of the low frequency signal; and when the low frequency signal is the valid signal, obtaining, by the wavelength tunable optical receiver, an enable condition of a wavelength tunable optical filter through which the low frequency signal is selected, in which the low frequency signal includes a control/monitoring signal.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: August 16, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jong Sool Jeong, Dong Hun Lee, Mi Ran Park, Byung Seok Choi, Hyun Soo Kim, O Kyun Kwon
  • Patent number: 9310609
    Abstract: A flexible scan element for a laser scanner is disclosed. The flexible can element may be made from a non-linear elastomeric material that twists sufficiently for scan operation but resists unwanted motion from shock/vibration through the use of a rigid motion-limiting member encapsulated, at least partially, within the body of the flexible scan element. In this way, no external components are required for limiting excess motion.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: April 12, 2016
    Assignee: Hand Held Products, Inc.
    Inventors: Gregory Rueblinger, Kevin Saber, Erik Van Horn, Colleen P. Gannon, Mark Meagher
  • Patent number: 9256067
    Abstract: An optical scanner includes: a base portion; a light reflecting portion that reflects light; a connection portion that connects the base portion and the light reflecting portion; and a shaft portion that supports the base portion in a swingable manner, wherein the light reflecting portion is disposed so that a geometrical center of the light reflecting portion is separated from a geometrical center of the base portion in a plan view, and wherein the light reflecting portion includes a center of gravity adjusting portion that performs adjustment so that a distance between the geometrical center of the base portion and a center of gravity of the light reflecting portion in the plan view becomes smaller than a distance between the geometrical center of the light reflecting portion and the geometrical center of the base portion in the plan view.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Yukihide Yamano
  • Patent number: 9141840
    Abstract: An apparatus (10) for deflecting and for widening a visible range of a camera (24) is provided, wherein the apparatus (10) has a first mirror element (12) which is tilted with respect to the optical axis of the camera (24) in a longitudinal direction in order to supply light to the camera (24) from a visible range lying laterally with respect to the optical axis. In this connection the first mirror element (12) is additionally tilted in a transverse direction perpendicular to the longitudinal direction and the apparatus has a second mirror element (14) besides the first mirror element (12) which is tilted in the longitudinal direction and in the transverse direction with respect to the first mirror element (12).
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 22, 2015
    Assignee: SICK AG
    Inventors: Christoph Anselment, Helmut Weber, Johannes Aschenbrenner, Christofer Roser, Norbert Schnurr, Dirk Strohmeier
  • Patent number: 9069171
    Abstract: There are provided a video projection device and a video projection method which can realize both a guarantee of safety and an increase in luminance of a screen. The video projection device includes: a laser light source unit which emits a laser; a laser scanning unit which is provided with one or more scanning directions and project video by performing a reciprocating scan of the laser with respect to a scanning direction with the highest scanning frequency; and a control unit which controls operations of the laser light source unit and the laser scanning unit depending on a video signal so that a scanning angle when emission of the laser in an outgoing path is stopped is different from a scanning angle when emission of the laser in a return path is started with respect to the scanning direction along which the reciprocating scan is performed.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 30, 2015
    Assignee: NEC CORPORATION
    Inventor: So Nishimura
  • Patent number: 9052511
    Abstract: A method and apparatus for resonant rotational oscillator have been disclosed. In one version a moving coil is mounted on a rotating member. By using a magnetic assembly and the moving coil the rotating member is made to rotate.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 9, 2015
    Inventor: Jeffrey Knirck
  • Patent number: 9042689
    Abstract: An optical switch includes: a semiconductor substrate, including a first rotation part and a first torsion beam disposed at two ends of the first rotation part, where the first torsion beam is configured to drive the first rotation part to rotate; a microreflector, disposed on a surface of the first rotation part of the semiconductor substrate; a first latching structure, disposed on a surface of the first torsion beam, the first latching structure including a form self remolding (FSR) material layer and a thermal field source, where the thermal field source is configured to provide a thermal field for the FSR material layer and the FSR material layer is configured to undergo form remolding under the thermal field, so as to latch the first rotation part and the microreflector in a position after rotation.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: May 26, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qinghua Chen, Haixia Zhang, Wengang Wu, Jun Zhao, Yunsheng Wen
  • Patent number: 9025228
    Abstract: An optical reflecting device includes a fixed frame, a pair of first oscillation parts, a movable frame, a pair of second oscillation parts, and a mirror part. One-side ends of the first oscillation parts are connected to the inside of the fixed frame. The movable frame is connected to and held by the other-side ends of the pair of first oscillation parts to be pivotable. One-side ends of the pair of second oscillation parts are connected to the inside of the movable frame and the pair of second oscillation parts are disposed to be substantially perpendicular to the pair of first oscillation parts. The mirror part is connected to and held by the other-side ends of the pair of second oscillation parts to be pivotable. The first oscillation parts have a meandering shape in which a plurality of straight portions and a plurality of folded portions are formed, and a stepped structure portion is provided in part of the folded portion.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: May 5, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiaki Horie, Shinsuke Nakazono, Soichiro Hiraoka, Shigeo Furukawa, Yuta Yamamoto, Kazuki Komaki, Masaki Tada
  • Patent number: 9013774
    Abstract: A projection controlling method for controlling a MEMS scanning mirror to repeatedly scan an image light on a surface and form a projection image is provided. A resonance frequency of the MEMS scanning mirror which swings around a first swing axis is detected and provided to a filter unit as a parameter of a filtering process. A first periodic control signal with a first frequency and a plurality of harmonic components is generated. The harmonic component with the resonance frequency is filtered from the first periodic control signal by the filter unit. The filtered first periodic control signal is provided to the MEMS scanning mirror to control the MEMS scanning mirror to swing around the first swing axis according to the first frequency and to scan the image light on the surface back and forth along a first direction. A MEMS projection apparatus is also provided.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: April 21, 2015
    Assignee: Lite-On Technology Corpoation
    Inventor: Cheng-Da Ko
  • Publication number: 20150103386
    Abstract: An optical scanning device includes a mirror part including a mirror reflecting surface to reflect incident light, a pair of torsion bars configured to support the mirror part from both sides and configured to form a first axis around which to swing the mirror part by a torsional motion thereof so as to deflect the reflected light, and at least one stress alleviation area configured to alleviate a stress generated by the torsional motion of the torsion bars. The alleviation area is provided between an intersection of a second axis perpendicular to the first axis and passing through the center of the mirror reflecting surface and an edge of the mirror reflecting surface, and at least one of the torsion bars.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Toyoki TANAKA, Tsukasa YAMADA, Takahiko NISHIYAMA
  • Patent number: 9001402
    Abstract: A miniature projector is provided that comprises: a means for providing at least three different light beams of different color; and a means for scanning the light beams; wherein the scanning means is adapted to scan the light beams according to a pattern from a first edge to an ending edge in the screen to form an image, the pattern being a wave pattern of scan lines such that amplitudes oscillates along a first axis as the beams progressively scan along a second axis, the second axis being perpendicular to the first axis, and wherein the wave pattern is a composite of a vertical scan profile and horizontal scan profile and the vertical scan profile has a cyclic wobulation corresponding to the amplitudes.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: April 7, 2015
    Assignee: Thomson Licensing
    Inventor: Mark Francis Rumreich
  • Patent number: 8988316
    Abstract: A display device, including a scanning device, displays an image on a display region using a light ray which scans. The display device includes a light source unit, a scanning control unit, and an emission control unit. The scanning device includes an auxiliary scanning unit which changes an inclination angle of a reflective mirror unit including a reflective mirror and a main scanning unit. The display region includes a plurality of elemental regions coupled to one another. The scanning control unit provides control so that the light ray scans over one of the plurality of elemental regions by changing the inclination angle of the reflective mirror while maintaining the inclination angle of the reflective mirror unit, and control so that the plurality of elemental regions are changed over by changing the inclination angle of the reflective mirror unit.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroyuki Uenaka, Mika Sakai, Shinichi Sato, Naoyuki Tsuboi
  • Publication number: 20150055203
    Abstract: An optical scanning device includes a mirror that oscillates to scan incident visible light. The mirror includes a substrate, a metal film formed on the substrate, and an reflection enhancing film stacked on the metal film.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 26, 2015
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yuki MARUYAMA, Misato ABE
  • Publication number: 20150055202
    Abstract: Optical scanning systems and methods of controlling a resonant scanning mirror are disclosed. A rotatable mirror may oscillate about a rotation axis in response to a drive signal. A reference source may provide a reference light beam directed to the rotatable mirror. A reference detector may be disposed to receive the reference light beam reflected from the rotatable mirror twice during each oscillation of the rotatable mirror. A controller may set both an amplitude and a frequency of the drive signal based on an output of the reference detector.
    Type: Application
    Filed: September 26, 2013
    Publication date: February 26, 2015
    Applicant: CALIENT Technologies, Inc.
    Inventor: Michael Inbar
  • Patent number: 8964273
    Abstract: An optical reflection element according to the present invention includes a fixed frame, a pair of first oscillation parts, a movable frame, a pair of second oscillation parts, and a mirror part. One-side ends of the first oscillation parts are connected to the inside of the fixed frame. The movable frame is connected to and held by the other-side ends of the pair of first oscillation parts to be pivotable. One-side ends of the pair of second oscillation parts are connected to the inside of the movable frame and the pair of second oscillation parts are disposed to be substantially perpendicular to the pair of first oscillation parts. The mirror part is connected to and held by the other-side ends of the pair of second oscillation parts to be pivotable. The second oscillation parts have a meandering shape in which a plurality of straight portions and a plurality of folded portions are formed, and a stepped structure portion is provided in part of the folded portion.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiaki Horie, Shinsuke Nakazono, Soichiro Hiraoka, Yuta Yamamoto, Kazuki Komaki, Masaki Tada, Kiyomi Furukawa
  • Publication number: 20150021483
    Abstract: A vibrating mirror element includes a drive control portion configured to control the driving of a correction drive portion to keep the turning angle velocity of a mirror portion substantially constant by oscillating the mirror portion about an axis at a non-resonance frequency in a direction opposite to a direction in which a resonant drive portion oscillates the mirror portion.
    Type: Application
    Filed: June 12, 2014
    Publication date: January 22, 2015
    Inventor: Manabu MURAYAMA
  • Patent number: 8937757
    Abstract: In an optical deflector apparatus, an optical deflector chip includes a mirror, an actuator adapted to rock the mirror, and first pads on a front surface of the optical deflector chip and connected to the actuator. A first substrate includes second pads on a back surface of the first substrate, and an opening is formed in the first substrate. The front surface of the optical deflector chip is adhered to the back surface of the first substrate in such a way that the first pads of the optical deflector chip are in contact with respective ones of the second pads of the first substrate and the mirror opposes the opening. A back surface of said optical deflector chip is adhered to a front surface of a second substrate.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 20, 2015
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Yoshiaki Yasuda
  • Patent number: 8933862
    Abstract: A light field display device comprising an array of light field display elements, each display element comprising: a beam generator for generating an output beam of light; a radiance modulator for modulating the radiance of the beam over time; a focus modulator for modulating the focus of the beam over time; and a scanner for scanning the beam across a two-dimensional angular field, the scanner comprising a biaxial electromechanical scanning mirror comprising: a mirror, a platform, an inner frame, and an outer frame; the mirror attached to the platform via a post, the platform attached to the inner frame via a first pair of hinges, and the inner frame attached to the outer frame via a second pair of hinges; the first pair of hinges arranged substantially orthogonally to the second pair of hinges, thereby to allow biaxial movement of the mirror; the extent of the mirror larger than the extent of the inner frame.
    Type: Grant
    Filed: May 24, 2014
    Date of Patent: January 13, 2015
    Inventor: Paul Lapstun
  • Patent number: 8928963
    Abstract: Provided is a light-scanning device may be designed to have a high resonance frequency and a large scanning angle. A mirror unit vibrates by using an arbitrary straight line as a rotation axis. A pair of first beam portions are disposed on a straight line that is parallel to the rotation axis, and support the mirror unit. A pair of second beam portions are disposed so as to be line-symmetrical to the pair of the first beam portions about the rotation axis as an axis of symmetry, and support the mirror unit. A pair of first arm portions respectively support the pair of first beam portions. A pair of second arm portions respectively support the pair of second beam portions. A pair of third beam portions support the mirror unit between the first beam portions and the second beam portions.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: January 6, 2015
    Assignee: JVC Kenwood Corporation
    Inventor: Takayuki Iseki
  • Publication number: 20150002595
    Abstract: An optical scanning device includes an oscillating mirror part, a torsion bar part, a piezoelectric element (driving part), a housing, and an optical element part. The oscillating mirror part includes a reflective surface capable of reflecting light from a first light source and a mass adjustment part formed on an opposite surface of the oscillating mirror part to the reflective surface and configured to be capable of reducing a mass thereof by exposure to laser light. The torsion bar part supports the oscillating mirror part. The piezoelectric element is configured to torsionally oscillate the oscillating mirror part about the torsion bar part. The housing accommodates the oscillating mirror part, the torsion bar part, and the piezoelectric element. The optical element part is configured to reflect or transmit the laser light from a second light source disposed outside of the housing to expose the mass adjustment part to the laser light.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 1, 2015
    Inventor: Yuji Toyota
  • Patent number: 8922862
    Abstract: A magnetic force drive device (7) has the first movable part (100) and the first driving unit (200). The first movable part (100) has the first movable plate (111), and a permanent magnet (120) that is magnetized in a direction substantially parallel to the first movable plate (111), and is supported by the first frame body (112) and the first pair of beam parts (113), so as to be able to oscillate around the Y axis, which is substantially parallel to the first movable plate (111) and substantially perpendicular to the direction in which the permanent magnet (120) is magnetized. The first driving unit (200) has a yoke (210), and a coil (220) that magnetizes the yoke (210). The yoke (210) has the first end part (211a), and a second end part (212a) that is placed on substantially the opposite side of the first end part (211a) against one magnetic pole of the permanent magnet (120).
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 30, 2014
    Assignee: NEC Corporation
    Inventors: Takeshi Honda, Nobuaki Takanashi
  • Patent number: 8922860
    Abstract: Motion control system and method for biosensor scanning that include inputting to a multi-axis motion controller move commands associated with the scan path as defined by multiple axes. The multiple axes including an x-baseline coordinate x0, a y-baseline coordinate y0, an x-direction oscillation amplitude x1, a y-direction oscillation amplitude y1, an oscillation frequency f and a phase ?. The multi-axis motion controller outputs digital commanded positions for each of the multiple axes. A post-processor receives the commanded positions and generates parameterized commanded positions x and y that each include a baseline motion component and an oscillating motion component. The parameterized commanded positions cause the scanning optical system to deflect the light beam to scan the beam spot over the scan path to scan the biosensor.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 30, 2014
    Assignee: Corning Incorporated
    Inventor: Cameron John Tovey
  • Publication number: 20140355087
    Abstract: A light scanning apparatus includes torsion beams supporting a mirror supporting portion on opposite sides of the mirror supporting portion along an axis direction, the mirror supporting portion being swung around the axis direction by the torsion beams; a pair of drive beams sandwiching the mirror and the mirror supporting portion in a direction orthogonal to the axis direction; connection beams that connect mutually facing sides of each drive beam with the torsion beams; and a piezoelectric sensor formed on the connection beams and detecting displacement of the connection beams caused by a swing of the torsion beams around the axis when the mirror swings by a drive voltage, wherein a first bias voltage having a positive or negative polarity is applied to an upper electrode of the piezoelectric sensor, and a second bias voltage having an opposite polarity is applied to a lower electrode.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 4, 2014
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Riichiro HIBIYA, Hisamichi Sekine
  • Publication number: 20140355089
    Abstract: In a MEMS device (1), a first drive portion (40) is divided into a first drive section (41) and a second drive section (42). A second drive portion (50) is divided into a third drive section (51) and a fourth drive section (52). The first drive section, the second drive section, the third drive section, and the fourth drive section are controlled for driving independently of each other to incline an optical component (10).
    Type: Application
    Filed: January 8, 2013
    Publication date: December 4, 2014
    Inventors: Manabu Murayama, Kouichi Kugo, Naoki Inoue, Hitoshi Fujii
  • Patent number: 8896897
    Abstract: A micromechanical component has a light window; a mirror element adjustable with respect to the light window from a first position into at least one second position about at least one axis of rotation, an optical sensor having a detection surface designed to ascertain a light intensity on the detection surface and to provide a corresponding sensor signal. The light window, the mirror element in the first position and the detection surface are situated in relation to one another in such a way that a portion of a light beam reflected on the light window strikes the detection surface at least partially; and an evaluation unit designed to define, on the basis of the sensor signal, information regarding an instantaneous position of the mirror element and/or an instantaneous intensity of the deflected light beam.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: November 25, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Pinter, Joerg Muchow, Joachim Fritz, Christoph Friese
  • Patent number: 8861058
    Abstract: A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the fast-scan axis is controlled by a fast-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. A fast-scan drive signal is generated that causes the scanning mirror to oscillate at a resonant frequency with a varying amplitude.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: October 14, 2014
    Assignee: Microvision, Inc.
    Inventors: Bruce C. Rothaar, Joel Sandgathe
  • Publication number: 20140267530
    Abstract: An imaging device scan unit, including an oscillator oscillating in a predetermined oscillation pattern; a light source generating a light beam for deflection by the oscillator and including a forward sweep portion when the oscillator moves in a first direction of the oscillation pattern and a reverse sweep portion when the oscillator moves in a second direction different from the first direction thereof; and components defining at least two optical paths for the light beam, the forward sweep portion of the light beam passes through a first optical path and the reverse sweep portion of the light beam passes through a second optical path, the second optical path reverses a sweep direction of the reverse sweep portion of the light beam such that the forward sweep portion and the reverse sweep portion of the light beam are in the substantially same direction when exiting the scan unit.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: Lexmark International, Inc.
    Inventors: James Ronald Booth, Roger Steven Cannon, Daniel E. Pawley
  • Patent number: 8810879
    Abstract: Provided is a Micro-Electro-Mechanical Systems (MEMS) device for actuating a gimbaled element, the device including a symmetric electromagnetic actuator for actuating one degree of freedom (DOF) and a symmetric electrostatic actuator for actuating the second degree of freedom.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: August 19, 2014
    Assignee: Maradin Technologies Ltd.
    Inventors: Yoram Lubianiker, Raviv Erlich, Matan Naftali, Adi Baram
  • Patent number: 8804223
    Abstract: An optical scanning device, having: a substrate main body; two cantilever beams protruded from the respective side portion of one side of the substrate main body; a mirror supported by torsion bars from the respective side, between the cantilever beams; a drive source to causes the substrate main body to vibrate; and a light source to project light onto the mirror, wherein a fixed end of the substrate main body is fixed to a supporting member, on the opposite side from the mirror side, and wherein the mirror resonantly vibrates according to vibration applied to the substrate by the drive source, thereby to change a direction of reflection light of the light projected onto the mirror from the light source according to the vibration of the mirror, characterized in that a Si mirror is attached to and fixed on the mirror.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 12, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Jaehyuk Park, Jun Akedo
  • Patent number: 8792151
    Abstract: An optical reflection element includes a frame, a meandrous vibrating part having an outer end connected with an inside of the frame, and a mirror part supported by an inner end of the meandrous vibrating part. The meandrous vibrating part has a meandrous shape that includes curved portions and vibrating beams alternately connected with the curved portions. A curvature of respective one of the curved portions is smaller than a curvature of at least one of the curved portions which is located closer to the inner end than the respective one of the curved portions. This optical reflection element has a large deflection angle of the mirror part.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: July 29, 2014
    Assignee: Panasonic Corporation
    Inventors: Shinsuke Nakazono, Toshiaki Horie, Soichiro Hiraoka, Yuta Yamamoto, Masaki Tada, Kazuki Komaki, Kiyomi Furukawa
  • Patent number: 8760745
    Abstract: A display system includes a substrate guided relay and a scanning projector. The scanning projector exhibits a brightness variation on a resonant scanning axis, and the substrate guided relay exhibits a brightness variation along a length of an output coupler. The scanning projector includes a brightness compensation circuit to compensate for both the brightness variation caused by the resonant scanning and the brightness variation along the length of the output coupler.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: June 24, 2014
    Assignee: Microvision, Inc.
    Inventors: Christian Dean DeJong, Mark Champion
  • Patent number: 8736934
    Abstract: A component having a mounting support, a displaceable part, which is joined to the mounting support by at least one flexible joining component, and an actuator device. The actuator device is configured to set at least one subunit of the displaceable part and/or of the at least one flexible joining component into a first oscillatory motion along a first axis in such a manner, that the displaceable part may be set into an angular oscillatory motion about a first rotational axis. The actuator device is additionally configured to set the same and/or another subunit into a second oscillatory motion having a motion component along a second axis at an inclination to the first axis, in such a manner, that, in addition to the angular oscillatory motion, the displaceable part is displaceable about a second rotational axis.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 27, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Stefan Pinter
  • Publication number: 20140139898
    Abstract: Disclosed is an optical scanning device, including a mirror, a first drive beam configured to swing the mirror around a first axis, and a second drive beam configured to swing the mirror around a second axis, wherein the second drive beam is provided in such a manner that a plurality of beams extending in a direction intersecting with a direction of the second axis are joined with adjacent beams at edge portions thereof, and thereby has a zigzag shape, and each of the plurality of beams includes a rib extending in a direction of a width of the beam.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventor: Tsukasa YAMADA
  • Patent number: 8717652
    Abstract: A mirror axis (MA) is displaced by deformation of a holder (HD) and with resonance of an optical scanner (LS) itself according to the frequency of a voltage applied to a piezoelectric element (PE). The frequency of the applied voltage for causing a resonance deforms the holder (HD) so as to generate at least one node intersecting with respect to the length of the holder (HD) itself.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 6, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Utako Takahashi
  • Patent number: 8717655
    Abstract: An image forming apparatus includes a light output unit that outputs light and a light scanning unit that includes at least one light reflection part reflecting the light output from the light output unit, and scans a display surface in a first direction at a first speed and scans the surface in a second direction orthogonal to the first direction at a second speed lower than the first speed with the light reflected by the light reflection part, wherein a drawable region in which an image can be formed on the display surface by scanning with the light has at least two parts of a part in which a length of the drawable region in the first direction increases, a part in which the length decreases, and a part in which the length is maintained constant from a first side toward a second side in the second direction.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: May 6, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Ishida, Yasushi Mizoguchi
  • Patent number: 8711460
    Abstract: In a moving structure, stability of swing motion of a moving plate is increased by enhancing tensional rigidity or flexural rigidity while restraining torsion rigidity of the hinge units. The hinge units of ladder shape with honeycombed portions are formed by twin supporting rods and crosspieces bridged between the twin supporting rods so as to support the moving plate rotatably. The tensional rigidity or the flexural rigidity is increased while restraining the torsion rigidity of the hinge units by the honeycombed portions of the hinge units.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 29, 2014
    Assignee: Panasonic Corporation
    Inventors: Hideki Ueda, Hiroshi Noge, Kiyohiko Kawano, Hiroaki Tachibana
  • Patent number: 8654423
    Abstract: A taut-band resonant scanner is disclosed that includes an elongated band and a sub-assembly. The elongated band has a length in an elongated direction, a width in a width direction that is orthogonal to the elongated direction, and a thickness in a thickness direction that is orthogonal to both the width direction and the elongated direction, wherein the thickness is substantially smaller than the width and wherein the width direction and elongated direction define a band width/length plane. The sub-assembly is attached to a portion of the band, and includes at least one mounting structure.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Cambridge Technology, Inc.
    Inventor: David C. Brown
  • Patent number: 8643923
    Abstract: An optical scanning device includes: a first scanning; a first scanning mirror driving unit; a light emission signal output unit; a light receiving unit; and a phase control unit which controls the first scanning mirror driving unit so as to delay a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal before intermediate time in a case where the light receiving unit does not output the detection signal during a predetermined period of time, the phase control unit controlling the first scanning mirror driving unit so as to advance a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal after the intermediate time in the case where the light receiving unit does not output the detection signal during the predetermined period of time.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: February 4, 2014
    Assignee: NEC Corporation
    Inventor: Osamu Ishibashi
  • Patent number: 8636367
    Abstract: The power and response curves of one or more beams or primaries of beams of a laser projection system illuminating an image on a viewing surface are controlled to desired characteristics during exhibition by monitoring the scanning beams in real time by using at least part of the horizontal blanking time during the scanning of a motion or still image to project a test pattern with one or more of the beams onto a sensor or sensors. The system and method permits real-time balancing and maintenance of the response curves and power levels of each of the beams, and of primary beams of combined beams, to desired targets so as to produce a display field without artifacts and at desired brightness on the viewing surface.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: January 28, 2014
    Assignee: Magic Lantern, LLC
    Inventors: John P. Callison, Jeffrey S. Pease, Gordon L. Elliott