Reflective Type Moving Element Patents (Class 359/212.1)
  • Patent number: 11300767
    Abstract: A method for high-resolution scanning microscopy of a sample, wherein the sample is illuminated with illumination light such that the illumination light is focused at a point in or on the sample into an illumination spot. The point is imaged into a diffraction image onto an area detector having detector elements. The area detector has a spatial resolution that resolves a diffraction structure of the diffraction image. The sample is here scanned line-wise in a grid made of rows and columns by displacing the point relative to the sample into different scanning positions with an increment width that is smaller than the diameter of the illumination spot. The area detector is read, and an image of the sample is generated from the data of the area detector and from the scanning positions assigned to said data, said image having a resolution that is increased beyond a resolution limit for imaging.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: April 12, 2022
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Stanislav Kalinin, Volodymyr Kudryavtsev, Thomas Egloff, Alexander Kolarow, Joerg Engel
  • Patent number: 11256078
    Abstract: One aspect of the invention provides a method of continuously scanning with a localization microscope. The method includes: modifying a position of a sample relative to a field of view (FOV) of the localization microscope to capture a plurality of image frames of the sample, each captured image frame having a limited FOV; acquiring image frames with the localization microscope during at least one position modification; determining a set of localization position coordinates for at least one localizable object in the sample within at least one image frame of the plurality of image frames; determining one or more field of view (FOV) position coordinates for the at least one image frame; and modifying the set of localization position coordinates based on the one or more FOV position coordinates to produce a collection of coordinates covering a larger spatial region than the at least one image frame.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: February 22, 2022
    Assignee: Yale University
    Inventors: Andrew Barentine, Joerg Bewersdorf
  • Patent number: 11150464
    Abstract: An optical scanning device includes a mirror part having a mirror surface configured to reflect light, N support cantilevers supporting the mirror part swingably, N drive cantilevers, and a plurality of driving piezoelectric elements secured on N drive cantilevers. The mirror part precesses by setting the frequency of AC voltage applied to each of a plurality of piezoelectric elements to a determined common value and setting the phase of AC voltage applied to each of a plurality of piezoelectric elements to a value determined according to the position of each piezoelectric element.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 19, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiaki Hirata, Nobuaki Konno, Takahiko Ito, Kozo Ishida, Yoshitaka Kajiyama
  • Patent number: 11143863
    Abstract: An optical scanning device includes a drive beam configured to support a mirror, and a drive source provided on the drive beam and configured to oscillate the mirror about a predetermined axis passing through the center of the light reflecting surface of the mirror. The drive beam includes multiple beams each extending in a direction perpendicular to the predetermined axis and one or more turn-back parts each connecting ends of adjacent beams, and has a zigzag shape as a whole. The multiple beams include a first beam, a second beam adjacent to the first beam, and a third beam adjacent to the second beam, the one or more turn-back parts include a first turn-back part connecting the first and second beams and a second turn-back part connecting the second and third beams, and the first and second turn-back parts are different in weight.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 12, 2021
    Assignee: MITSUMI ELECTRIC CO, LTD.
    Inventor: Tsukasa Yamada
  • Patent number: 11143859
    Abstract: A light scanning apparatus includes a mirror supporting portion having a mirror on a front surface, an actuator configured to driving the mirror supporting portion, a fixed frame disposed around the mirror supporting portion and the actuator, and at least one rib disposed on a back surface side of the mirror supporting portion or the actuator, wherein the rib includes a straight portion and a contact portion having a width wider than a width of the straight portion.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: October 12, 2021
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventor: Akira Takahashi
  • Patent number: 10852656
    Abstract: An optical deflector is configured such that a distance between a circumscribed circle of a rotary polyhedron centered on an axis of the rotary polyhedron and an inner peripheral surface of a peripheral wall of a cover member in a radial direction of the rotary polyhedron is largest at both of circumferential ends of an opening of the cover member.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: December 1, 2020
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Shingo Yoshida
  • Patent number: 10838197
    Abstract: An optical scanning device includes a mirror including a light reflection surface, a mirror support structure that supports the mirror, a pair of first driving beams connected to the mirror support structure and disposed on the corresponding sides of the mirror support structure, first driving sources disposed on the first driving beams and configured to cause the mirror to rotate around a first axis that passes through the center of the light reflection surface, and a fixed frame that supports the first driving beams. The center of gravity of the mirror and the mirror support structure is located on the first axis.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 17, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventor: Tsukasa Yamada
  • Patent number: 10841546
    Abstract: According to one embodiment, a display device includes an optical modulation element configured to emit image light corresponding to an image by using illumination light from an illumination device, a polarization control element configured to emit first polarized light, and second polarized light on the basis of the image light receiving from the optical modulation element, a polarization separation element configured to transmit the first polarized light as transmitted light and reflect the second polarized light as reflected light, and a projector configured to project the transmitted light onto a first projection area of a projection plane, and projects reflected light onto a second projection area of the projection plane.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 17, 2020
    Assignee: Japan Display Inc.
    Inventors: Tatsuya Yata, Naoyuki Takasaki
  • Patent number: 10809533
    Abstract: A tiled head-mounted display device, comprising: an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical. The tiled head-mounted display device according to the present invention is compact and light, provides wide field of view and high resolution, especially for the optical tiling head-mounted display device, the exit pupil planes of each display channels are coincident, thus avoiding pupil aberration and keeping exit pupil diameter and eye clearance same as the single ocular. There is no resolution variance throughout the entire field of view, thus preventing extra trapezoid distortion.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: October 20, 2020
    Assignees: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Dewen Cheng, Yongtian Wang, Hong Hua
  • Patent number: 10805583
    Abstract: A light projection system includes a GPU that receives video data containing video images, defines a two-dimensional grid (each element of which represents a position of a light beam at a different time), designates which elements of the two-dimensional grid correspond to positions of the light beam in a designated area, designates which elements correspond to positions of the light beam outside of the designated area with some positions outside being designated as calibration positions, maps each element corresponding to positions in the designated area to a corresponding pixel of a frame of a video image, and maps elements corresponding to calibration positions to calibration pixels. An ASIC receives the mapped pixels and mapped calibration pixels from the GPU, and generates a beam position control signal therefrom. A controller controls a movable mirror based on the beam position control signal.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 13, 2020
    Assignees: STMicroelectronics S.r.l., STMicroelectronics Ltd
    Inventors: Massimo Ratti, Eli Yaser, Naomi Petrushevsky, Yotam Nachmias
  • Patent number: 10606068
    Abstract: An optical scanning device includes a support portion including a swingable coupling portion and a frame swingably supporting the coupling portion, a first reflecting portion coupled to the coupling portion and configured to swing together with the coupling portion, and a swingable connecting portion including a bridge and a second reflecting portion coupled to the first reflecting portion via the bridge and provided at a position away from the first reflecting portion beyond the support portion.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 31, 2020
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventor: Takeshi Inoda
  • Patent number: 10551614
    Abstract: A depth camera assembly (DCA) for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates the local area with a structured light pattern. The structured light generator includes a programmable diffractive optical element (PDOE) that generates diffracted scanning beams using optical beams. The PDOE functions as a dynamic diffraction grating that dynamically adjusts diffraction of the optical beams to generate the diffracted scanning beams of different patterns. The diffracted scanning beams are projected as the structured light pattern into the local area, wherein the structured light pattern is dynamically adjustable based on the PDOE. The imaging device captures image(s) of at least a portion of the structured light pattern reflected from object(s) in the local area. The controller determines depth information for the object(s) based on the captured image(s).
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: February 4, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew Matthew Bardagjy, Joseph Duggan, Cina Hazegh, Fei Liu, Mark Timothy Sullivan, Simon Morris Shand Weiss
  • Patent number: 10527858
    Abstract: A waveguide display is used for presenting media to a user. The waveguide assembly includes a light source, a source waveguide, an output waveguide, and a controller. The light source emits image light based on scanning instructions from the controller. The source waveguide receives the image light from the light source, expands the image light in at least one dimension, and outputs an expanded image light to the output waveguide at an input area. The output waveguide outputs the expanded image light from a portion of an output area based on a direction of the expanded light from the source waveguide.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: January 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Pasi Saarikko
  • Patent number: 10345579
    Abstract: A scanner mirror includes a reflecting mirror and a driver. The reflecting mirror has first and second reflectors that are pivotally arranged about a pivot axis. The first and second reflectors have light receiving faces, respectively. The light receiving faces face in directions that are angularly offset with each other about the pivot axis. The driver drives the reflecting mirror to pivot the first and second reflectors within a specific angle range.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 9, 2019
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventor: Manabu Murayama
  • Patent number: 10281723
    Abstract: A tiled head-mounted display device, comprising: an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical. The tiled head-mounted display device according to the present invention is compact and light, provides wide field of view and high resolution, especially for the optical tiling head-mounted display device, the exit pupil planes of each display channels are coincident, thus avoiding pupil aberration and keeping exit pupil diameter and eye clearance same as the single ocular. There is no resolution variance throughout the entire field of view, thus preventing extra trapezoid distortion.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: May 7, 2019
    Assignees: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Dewen Cheng, Yongtian Wang, Hong Hua
  • Patent number: 10120186
    Abstract: A scanning mirror includes a mirror base and a reflective film formed on the mirror base. The mirror base is formed from a non-metallic material having a specific rigidity, determined by Young's modulus (GPa) and density (g/cm3), of at least 100 GPa·cm3/g.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: November 6, 2018
    Assignee: Disco Corporation
    Inventor: Yu Kudo
  • Patent number: 9851531
    Abstract: Example embodiments provide for an optical lens assembly and imaging lens with IR light filtering. The lens comprises a body having two surfaces and a plurality of layers of optical thin film layered along a direction formed on at least one surface. The optical thin films comprise less than 20 layers and thicker than 400 nm and thinner than 2000 nm thickness. Through the alternately layered layers of optical thin film, the transmittance of the lens for incident light in infrared ray band is reduced. Therefore, the infrared ray is mostly filtered without use of an additional infrared ray filter.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 26, 2017
    Assignee: GeniuS Electronic Optical Co., Ltd
    Inventors: Wen Hua Lin, Tsang-Yi Liao, Hong-Yen Lin, Guo Jin Su, Chi Sheng Fang
  • Patent number: 9804385
    Abstract: An object detector and a sensing apparatus are provided. The object detector includes a light source, a light deflector configured to deflect light emitted from the light source, and a photodetector configured to detect the light that is deflected by the light deflector and then is reflected at an object, where the light deflector includes a plurality of reflection planes that rotate on a rotation axis, the reflection planes are oblique to the rotation axis and are rotationally symmetrical about the rotation axis, and the light that is emitted from the light source enters the light deflector in a direction parallel to the rotation axis. The sensing apparatus includes the object detector, and a monitoring controller configured to determine whether an object is present, and obtain movement information of the object including at least one of moving direction and moving speed of the object.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 31, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Itami, Shigeaki Imai, Tadashi Nakamura
  • Patent number: 9727670
    Abstract: Methods, systems, and computer-readable media are described herein for simulating a view of a horizon at night. The positions of a number of light sources may be determined from the perspective of a viewer location. A number of light attributes associated with the light sources are determined. A horizon view visualization is provided that includes a number of light representations corresponding with the light sources. The light representations are depicted according to the determined positions and light attributes.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: August 8, 2017
    Assignee: The Boeing Company
    Inventor: Slawomir Mrozowicz
  • Patent number: 9575313
    Abstract: An optical deflector includes a mirror with a reflective layer on its front-side surface, a first support frame adapted to support the mirror, at least one torsion bar coupled between the first support frame and the mirror; and a reinforcement rib provided on a rear-side surface of the mirror. The torsion bar has a pair of protruded portions arranged symmetrically with respect to the torsion bar in the vicinity of a coupling portion between the torsion bar and the mirror. The reinforcement rib has a central portion and a pair of extension portions extended symmetrically from the central portion and coupled to the protruded portions, respectively, of the torsion bar.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 21, 2017
    Inventor: Kenjiro Fujimoto
  • Patent number: 9541729
    Abstract: An electro-optical apparatus has an element substrate that is provided with a mirror and a sealing member which seals the mirror, and the sealing member includes a light-transmitting cover which faces the mirror opposite from the element substrate. An infrared cut filter is laminated on the light-transmitting cover.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: January 10, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Manabu Kondo
  • Patent number: 9488830
    Abstract: A scanning device includes a scan unit with a polygon mirror, pre-scan optics and post-scan optics. The pre-scan optics are arranged upstream of the polygon mirror in such a way that a beam bundle coming from the light source impinges on the polygon mirror at an angle of incidence (?) in a cross scan plane, and the optical axis of the post-scan optics is arranged in a reflection direction of the polygon mirror. Distortions, trapezoidal distortion and scan bow, occurring when imaging the light source on a scan line are minimized in that the cylindrical mirror of the post-scan optics is tilted at a first tilt angle (?) relative to the surface normals to the polygon mirror in the cross scan plane, and one of the two corrective lenses of the post-scan optics is tilted relative to the optical axis of the post-scan optics at a second tilt angle (?) and is arranged so as to be offset by a distance.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 8, 2016
    Assignee: JENOPTIK Optical Systems GmbH
    Inventors: Ullrich Krueger, Thomas Dressler, Stefan Heinemann
  • Patent number: 9405121
    Abstract: An image display apparatus includes a plurality of light source sections, a light combining section that combines light fluxes, an optical scan section that swings around a first axis and a second axis to deflect a combined light from the light combining section for scanning, and a controller that controls an amplitude of the optical scan section around the first axis to be greater than that of the optical scan section around the second axis, wherein an optical axis of each of the light fluxes from the plurality of light source sections to the optical scan section and the first axis are present in a first plane, the optical scan section has a light reflection surface configured to be perpendicular to the first plane, and the light reflection surface is irradiated with the combined light and traveling in a direction inclined to a normal to the light reflection surface.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 2, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Ishida, Masatoshi Yonekubo
  • Patent number: 9348134
    Abstract: An optical scanning unit includes a light source, an optical deflector that includes a light transmission window disposed on a light path from the light source and a rotatable mirror that includes a reflecting surface to reflect light that goes through the light transmission window into the light transmission window and to deflect the light from the light source toward a surface, and a light shield disposed on a light path of reflected light of the light from the light source reflected by a surface of the light transmission window.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 24, 2016
    Assignee: Ricoh Company, Ltd.
    Inventor: Daisuke Ichii
  • Patent number: 9097895
    Abstract: In an optical deflector including a mirror, a rib formed at an outer circumference of the mirror, a support frame surrounding the mirror, at least one torsion bar arranged along an axis of the mirror and coupled between the support frame and the mirror, and a pair of actuators arranged between the support frame and the torsion bar, a recess opposing the torsion bar is formed within the rib.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 4, 2015
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Keiichi Ikegami
  • Patent number: 9055867
    Abstract: A confocal microscope having a scanning head in the form of a hand piece which may be placed at selected locations on the body of a patient. A laser beam is scanned in orthogonal (horizontal and vertical) directions by scanners which drive scan mirrors, which are closely adjacent to each other. The optics include an objective lens and a telescope lenses that image the objective lens entrance pupil between the scan mirrors. Scanner is a pulse driven resonant scanner which is feed back controlled to maintain scanning rate and can change the scan angle and obtain dynamic, electronic image zooming without changing the positional relationship of the telescope.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: June 16, 2015
    Assignee: CALIBER IMAGING & DIAGNOSTICS, INC.
    Inventors: William J. Fox, Scott R. Grodevant, Christopher C. Distasio
  • Publication number: 20150146272
    Abstract: The number of detection channels of detecting sections is increased and the detecting sections are replaced easily and at low cost while suppressing loss in the quantity of returning light. Provided is a detection unit (5A) including a detector entrance port (75A) through which light in a predetermined optical form enters, a detector (57A) that detects at least a portion of the light entering through the detector entrance port (75A), and a detector exit port (65A) through which at least another portion of the light entering through the detector entrance port (75A) can exit in the same optical form.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 28, 2015
    Applicant: OLYMPUS CORPORATION
    Inventors: Yusuke AMANO, Masaharu TOMIOKA
  • 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: 9036233
    Abstract: A laser light source module includes a housing and a heat sink that is thermally connected to the housing. The housing includes a laser element that emits laser light, a laser holder that is made of metal to hold the laser element, a laser light receiving element that receives laser beam from the laser element, a mirror element that reflects the laser light to scan a screen, an optical element that is disposed on the optical axis of the laser light. The laser holder is thermally connected to the housing with a thermally conductive member. A protrusion is formed on the thermally conductive member. The protrusion and the springiness of the thermally conductive member are used to press the laser holder against the housing in the same direction as the direction of laser light emission.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 19, 2015
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Wataru Sato, Takeshi Nakao
  • Patent number: 8997572
    Abstract: A probe for use with an imaging system, including a scanning device configured to receive a first light beam from a light source, a beam-divider configured to split the first light beam into a plurality of second light beams, and a focusing device configured to focus each of the second light beams on respective locations in an object of interest.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: April 7, 2015
    Assignee: Washington University
    Inventors: Lihong Wang, Liang Song, Konstantin Maslov, Bin Rao
  • Patent number: 8988751
    Abstract: An optical scanning device is disclosed. The optical scanning device comprises an overfilled optical system in which an incoming light beam, formed wider than a width in a rotation direction of a rotating multifaceted mirror's reflective surface, is caused to be incident on the reflective surface and a scanning object's scanning surface is scanned by an outgoing beam reflected by the reflective surface. The incoming beam is incident on the rotating multifaceted mirror's reflective surface, having an angle with respect to a virtual vertical surface that is vertical to the scanning surface and the outgoing beam's scanning direction. A light amount distribution for positions on the scanning surface in the scanning direction is corrected based on a slope of a straight line that expresses a ratio of light amount changes for positions on the scanning surface in the scanning direction when scanning the scanning surface using the outgoing beam.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takaharu Motoyama, Nobuhiro Shirai
  • Patent number: 8960919
    Abstract: An image projection device includes a number-of-times measurement section that measures the number of passage times that the scanned laser light has passed through the light radiation members, a time measurement section that is triggered to measure an elapsed time when the number-of-times measurement section measures the number of passage times, an arithmetic section that calculates an initial timing at which the laser light source section starts outputting the laser light based on the measurement results of the number-of-times measurement section and the time measurement section, and a signal generation section that generates the switch signal at the initial timing calculated by the arithmetic section.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: February 24, 2015
    Assignee: NEC Corporation
    Inventor: So Nishimura
  • Publication number: 20150029490
    Abstract: A laser scanning device includes a light source and a light scanner that scans a laser light emitted from the laser light source. The light source emits the laser light so that the laser light is incident to the light scanner from a plurality of directions.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Ryusuke Horibe, Manabu Murayama
  • Patent number: 8936369
    Abstract: An illuminator includes: a light source section including a laser light source; an optical element through which a laser beam from the laser light source passes; a driving section oscillating the optical element; and a control section controlling, in a driving operation performed by the driving section, the driving operation to allow an oscillating amplitude value of the optical element in a startup period of the optical element to be equal to or less than the oscillating amplitude value of a steady-state operation period of the optical element that is subsequent to the startup period.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 20, 2015
    Assignee: Sony Corporation
    Inventor: Hiroshi Isobe
  • Patent number: 8905553
    Abstract: A method of detecting a scanning angle range of a laser beam of a laser projector is provided. First, a photo sensor is disposed between first and second positions on a projection mirror. Then, a laser beam emitted from the laser projector scans back and forth between the first and second positions, so that the photo sensor receives the laser beam sequentially at first and second scanning time points to generate first and second sensing signals, respectively. If an actual time interval between the first and second sensing signals conforms to an expected time interval, an actual scanning angle range of the laser beam is determined as normal. If the actual time interval does not conform to the expected time interval, the actual scanning angle range of the laser beam is determined as abnormal and the laser projector stops emitting the laser beam. A laser projector is also provided.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: December 9, 2014
    Assignee: Lite-On Technology Corporation
    Inventors: Chia-Tse Lin, Kai-Wen Cheng
  • Publication number: 20140355091
    Abstract: A light deflector includes a fixing portion, a movable portion and a reinforcing member. The movable portion includes a mirror portion for deflecting light by swinging about a predetermined swing axis, a torsion bar fixedly supported on the fixing portion and having an axis serving as the swing axis, and a supporting body configured to support the mirror portion and fixed to the torsion bar. The supporting body includes a contact surface to be held in contact with the mirror portion and a non-contact surface opposite to the contact surface. The reinforcing member is provided only on the non-contact surface out of the contact surface and the non-contact surface of the supporting body and reinforces the supporting body and adjusts a center of gravity of the movable portion so that the center of gravity of the movable portion is located on the axis.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20140355090
    Abstract: A light deflector includes a fixing portion and a movable portion. The movable portion includes a mirror portion for deflecting light by swinging about a predetermined swing axis, a torsion bar fixedly supported on the fixing portion and having an axis serving as the swing axis, and a supporting body configured to support the mirror portion and fixed to the torsion bar. The supporting body includes a hole portion through which the axis passes. A mass body for adjusting a resonant frequency of the movable portion is arranged in the hole portion.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20140354950
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 4, 2014
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer
  • Patent number: 8879135
    Abstract: A device for deflecting a light beam in two different directions includes a mirror and a first rotating actuator element configured to rotate about a first axis as a function of a first actuation signal. A second rotating actuator element is disposed opposite to the first rotating actuator element along the first axis and configured to rotate about the first axis as a function of a second actuation signal. A first spring element is connected to the first rotating actuator element and, off-axially with respect to the first axis at a predetermined first distance thereto, to the mirror in a rest position of the mirror. A second spring element is connected to the second rotating actuator element and to the mirror.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: November 4, 2014
    Assignee: Leica Microsystems CMS GmbH
    Inventors: Dirk-Oliver Fehrer, Ingo Boehm
  • Publication number: 20140313557
    Abstract: A microelectromechanical systems (MEMS) device includes a scanning platform suspended from a fixed platform by two flexures that form a pivot axis. The two flexures may be symmetric or asymmetric about a centerline of the scanning platform. At least one flexure includes two segments that are not parallel to each other. A second flexure may include two segments with one segment being wider than the other. Flexure design reduces effects of mounting and thermal stresses when the MEMS device is mounted as part of an assembly.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 23, 2014
    Applicant: Microvision, Inc.
    Inventors: Dean R. Brown, Wyatt O. Davis, Jason B. Tauscher
  • Patent number: 8864316
    Abstract: Optical MEMS scanning micro-mirror comprising: —a movable scanning micro-mirror (101) pivotally connected to a MEMS body (102) substantially surrounding the lateral sides of the micro-mirror; —an transparent prism (500, 600) substantially covering the reflection side of the micro-mirror; —wherein said prism has its outer face non-parallel to the micro-mirror neutral plane N-N, thereby providing a dual anti-speckle and anti-reflection effect, namely against parasitic light. The invention also provides the corresponding micro-projection system and method for reducing speckle.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Lemoptix SA
    Inventors: Lucio Kilcher, Nicolas Abele, Faouzi Khechana
  • Patent number: 8853804
    Abstract: A tunable tilting device is described. The device includes a tilting element and a suspension structure that has one or more flexures coupled to the tilting element. The suspension structure has a variable bending stiffness and configured to bend due to a tilting motion of the tilting element around a pivot axis. The suspension structure is responsive to a tuning force actuating a variation of an extension stress or a compression stress of the suspension structure, and thereby can vary the bending stiffness of the suspension structure.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: October 7, 2014
    Assignee: Ramot at Tel-Aviv University Ltd.
    Inventors: Viacheslav Krylov, Tsvi Shmilovich
  • Patent number: 8844671
    Abstract: An apparatus for damping sound in the optical beam path of a microscope, having an acoustic insulation housing for encapsulating a sound-emitting component, preferably a rapidly moving or oscillating beam deflection means, in particular a resonantly oscillating mirror, the housing comprising at least one optical entrance/exit opening, is characterized in that the housing, preferably the opening of the housing, is embodied and/or configured in such a way that the sound otherwise emerging from the housing is largely extinguished by destructive interference without thereby influencing the optical beam. A microscope having a corresponding apparatus is furthermore claimed.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: September 30, 2014
    Assignee: Leica Microsystems CMS GmbH
    Inventors: Holger Birk, Volker Seyfried, Dirk-Oliver Fehrer, Vishnu Varden Krishnamachari
  • Patent number: 8837029
    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: Grant
    Filed: January 27, 2014
    Date of Patent: September 16, 2014
    Assignee: Mitsumi Electric Co., Ltd.
    Inventor: Tsukasa Yamada
  • Publication number: 20140246560
    Abstract: Provided is an optical scanning apparatus including: a deflector capable of deflecting an entering beam while switching an advancing direction thereof among a plurality of direction at a predetermined switching timing; a mirror array including a plurality of angle setting mirrors that are placed at angles different from one another on respective optical paths of the beams deflected by the deflector, each of the angle setting mirrors reflecting the beam while giving thereto a relative angle on the same plane for each optical path, and gathering the beam on the same point; and a first scanner that is provided so as to be swingable about an axial line perpendicular to the plane in synchronization with the switching timing, the first scanner reflecting each beam that is caused by the mirror array to enter the same point from a different direction and applying for scanning the beam along the same trajectory.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: OLYMPUS CORPORATION
    Inventor: Shintaro TAKAHASHI
  • Publication number: 20140240809
    Abstract: The present invention provides a light field display device (300) comprising an array of light field display elements (310) populating a display surface, each display element (310) comprising: a beam generator (522) for generating an output beam of light; a radiance modulator (524) for modulating the radiance of the beam over time; a focus modulator (530) for modulating the focus of the beam over time; and a scanner (504, 506) for scanning the beam across a two-dimensional angular field.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Inventor: Paul Lapstun
  • Patent number: 8767279
    Abstract: A handheld imaging probe for performing optical coherence tomography is disclosed. The handheld imaging probe includes a lens tube and a housing. The lens tube contains an objective lens and a polycarbonate sheet. The polycarbonate sheet provides a bio-safe contact with a tissue sample to be examined. The housing, which is connected to the lens tube, contains a micromirror for directing a laser beam to irradiate the tissue sample via the objective lens and the polycarbonate sheet.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 1, 2014
    Assignee: NanoLite Systems, Inc.
    Inventors: Xiaojing Zhang, Youmin Wang, Ting Shen
  • Publication number: 20140176656
    Abstract: A light source driver includes a controller which outputs an undershoot current in synchronization with lighting complete timing in lighting information, wherein the controller is configured to output the undershoot current such that a voltage in a light source when the output of the undershoot current is complete is equal to a voltage in the light source before being turned on.
    Type: Application
    Filed: December 24, 2013
    Publication date: June 26, 2014
    Inventors: Atsufumi OMORI, Masaaki Ishida, Muneaki Iwata, Hayato Fujita
  • 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: 8743449
    Abstract: Embodiments of the subject invention relate to micromirror devices and methods of fabricating a micromirror/micromirror array. According to an embodiment, micromirrors can be fabricated from a semiconductor substrate where after forming actuators and bonding pads on a front side of the semiconductor substrate, the device is flipped over to have a portion of the back side of the substrate removed and formed to become the mirror plate surface. The subject micromirrors can allow further miniaturization of endoscopes and other optical applications without sacrificing the optical aperture through their surface mounting capabilities.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: June 3, 2014
    Inventors: Huikai Xie, Kemiao Jia