Distortion Compensation Patents (Class 353/69)
  • Patent number: 10318067
    Abstract: An example processor-implemented method for generating corners of a display area is provided. The method comprises detecting a dominant line for each side of the display area, each dominant line used to identify corners, detecting subline segments on each side of the display area, determining a distance between the corners identified by the dominant lines and the sub-line segments on each side, and generating the corners of the display area based on the distance.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 11, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yun Tang, Jinman Kang, David Bradley Short, Daniel R Tretter, Kar-Han Tan, Amit A Marathe
  • Patent number: 10288989
    Abstract: A projector that projects an image on a screen includes a projection port for projecting the image in a direction tilting to the lower side with respect to the horizontal direction, a housing, and an exhaust panel provided in an exhaust port formed in the housing and configured to restrict a moving direction of the air discharged through the exhaust port. The exhaust port is formed on a right side surface toward a projecting direction of the image in the housing. The exhaust panel forms a channel that connects the inner side and the outer side of the housing. The channel has a tilt coming closer to a direction vertically opposite to the projecting direction of the image and closer to the screen from the inner side toward the outer side.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: May 14, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsu Nakayama, Ryoichi Nakagawa, Yoshitsugu Akutagawa
  • Patent number: 10285771
    Abstract: A replacement light apparatus includes a base plate, a bearing member, and a light source. The bearing member extends from a portion of the base plate. The bearing member includes a bearing surface. The light source is coupled to the bearing surface of the bearing member and adapted to project a cone of light centered on an illumination axis that extends perpendicular to the bearing surface.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: May 14, 2019
    Assignee: SOUTHERN LINAC, LLC
    Inventors: Clark Bowlsbey, Edward Q. Castle, Jr., Kyle Bowlsbey
  • Patent number: 10266117
    Abstract: A device for providing a vehicle environment view for a vehicle includes a plurality of vehicle cameras configured to provide camera images of a vehicle environment of the vehicle, and an image data processing unit configured, based on a detected movement space of at least one vehicle component of the vehicle and/or of the entire vehicle, to adapt a projection surface onto which the camera images provided by the vehicle cameras are projected to generate the vehicle environment view.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 23, 2019
    Assignees: Conti Temic Microelectronic GMBH, Deere & Company
    Inventors: Johannes Petzold, Kilian Wolff
  • Patent number: 10228546
    Abstract: An optical system includes a reflective optical system on a magnification side along an optical path of the projection optical system and a refractive optical system on a reduction side along the optical path. The reflective optical system includes one reflective optical element having a power. The refractive optical system includes a front group on the magnification side and a rear group on the reduction side. The front group having, in order from the magnification side toward the reduction side, a first lens group with a positive or negative refractive power, a second lens group, and a third lens group with a positive refractive power. The rear group has a positive refractive power. The first lens group moves to the magnification side, and the second lens group and the third lens group move to the reduction side in a change in focus from a long distance to a short distance.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: March 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hibiki Tatsuno, Yasuyuki Shibayama
  • Patent number: 10194144
    Abstract: The projection image adjusting system has a storage, a receiving section, and a controller. The storage stores virtual-environment setting information on a set-up situation of a projection display apparatus set so as to have a desired image-projection state on an object on which an image is projected in a virtual space created by a computer and also stores a control set-up value for the projection display apparatus in the desired image-projection state. The receiving section receives real-environment setting information on a set-up situation of the projection display apparatus in a real space. The controller controls the projection display apparatus in the real space. Based on the virtual-environment setting information and the real-environment setting information, the controller corrects the control set-up value so as to decrease a difference between an image-projection state in the real space and the desired image-projection state.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: January 29, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Yoshinao Sugiura
  • Patent number: 10171781
    Abstract: An image signal in which a predetermined calibration pattern is synthesized in an input image is output. Based on the output image signal, transmittance or reflectance of a liquid crystal panel is controlled, and an image is formed. The image is projected by irradiating the liquid crystal panel with light, and the projected image is captured. A calibration pattern is extracted from the captured image. A correction parameter is generated depending on a condition of the extracted calibration pattern. Image capturing timing is controlled so that an image before or after update of transmittance or reflectance of the liquid crystal panel is not mixed in the image captured by an image capturing sensor based on timing at which the transmittance or the reflectance of the liquid crystal panel is updated by a liquid crystal control unit.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: January 1, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Oka
  • Patent number: 10151906
    Abstract: An imaging optical system consists of a first optical system and a negative second optical system in order from a magnified side. The second optical system forms an intermediate image, and the first optical system forms the intermediate image on a magnified-side conjugate plane. The second optical system consists of a positive front group and a back group in order from the magnified side. Predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: December 11, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Akiko Nagahara
  • Patent number: 10146046
    Abstract: An information providing method includes: measuring a static object three-dimensionally in an environment, by a processor; sequentially measuring a position of a dynamic object in the environment, by the processor; transmitting measurement data of the static object measured to a predetermined information processing apparatus through a communication network; transmitting measurement data of the dynamic object measured to the information processing apparatus through a communication network; receiving support data rem the information processing apparatus based on an environment grasping image that is generated from the measurement data, of the static object and the measurement data of the dynamic object by the information processing apparatus; and presenting the received support data to the environment at predetermined timing, by the processor.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 4, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hiroshi Hidaka, Yuichi Murase, Keiju Okabayashi, Shan Jiang, Katsushi Sakai, Junya Fujimoto, Moyuru Yamada, Shizuko Ichikawa
  • Patent number: 10140721
    Abstract: Methods and apparatus relating to a mechanical system on computer with rotational projector and RealSense™ camera are described. In an embodiment, a device includes three portions: a first portion to comprise a projector; a second portion to comprise a camera; and a third portion to comprise one or more computing system components. At least the first and second portions are rotationally engaged to allow for independent rotation of the first portion and the second portion. Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 27, 2018
    Assignee: Intel Corporation
    Inventors: Simon Tsai, Jeff Ku, Gavin Sung, Paul M. Zagacki, Tim Liu, Ivan By Wang, Christopher J. Hamlin
  • Patent number: 10106084
    Abstract: The present disclosure provides a vehicle-mounted display system and a vehicle. The vehicle-mounted display system includes a transparent projection screen and a projector configured to project an image onto the transparent projection screen. A first polarizer is attached onto a lens of the projector, and a second polarizer is attached onto the transparent projection screen. The second polarizer has a polarization transmission direction crossing a polarization transmission direction of the first polarizer at such an angle as to enable a light beam from the projector and passing through the first polarizer and the second polarizer to be of an intensity smaller than an intensity of a light beam capable of being recognized by human eyes. The second polarizer has a polarization reflection direction perpendicular to its polarization transmission direction, so as to reflect a light component in the polarization reflection direction.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: October 23, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuewen Lv, Jing Su, Yanshun Chen, Wenbo Li, Xinyin Wu
  • Patent number: 9992466
    Abstract: A position detection portion of a projector detects an operation on a screen based on a captured image obtained by capturing the screen. A control portion executes a calibration in which positions in a projection image and positions in the captured image are associated with each other based on the captured image obtained by capturing the projection image projected by a calibration control portion based on auto calibration images in which marks for specifying positions are arranged. In addition, the calibration control portion executes the calibration based on the captured image corresponding to the plurality of auto calibration images which are different in arrangement states of the marks.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 5, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Karol Marcin Pawlak, Kenji Tanaka, Shinji Kubota
  • Patent number: 9967532
    Abstract: The disclosure relates to the field of displaying a projected picture, and particularly to a projection device, and a method for adjusting a projected picture. In an embodiment of the disclosure, the method includes: acquiring an image of a physical screen through a camera, and determining a projection of the physical screen onto a vision plane of the camera; determining rotation parameters and translation parameters of the projection device according to the vision plane and the projection of the physical screen; and adjusting the projection device according to the rotation parameters and the translation parameters of the projection device.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: May 8, 2018
    Assignees: HISENSE CO., LTD., HISENSE USA CORPORATION, HISENSE INTERNATIONAL CO., LTD.
    Inventor: Chenxing Wang
  • Patent number: 9939611
    Abstract: An optical lens including a first lens group and a second lens group is provided. The first lens group is disposed between a magnified side and a reduced side and has a negative refractive power. The first lens group includes four lenses. Two lenses closest to the magnified side in the first lens group are aspheric lenses. The second lens group is disposed between the first lens group and the reduced side and has a positive refractive power. The second lens group includes at least seven lenses.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 10, 2018
    Assignee: Young Optics Inc.
    Inventors: Ching-Sheng Chang, Yen-Te Lee, Kuo-Chuan Wang
  • Patent number: 9906761
    Abstract: In a projector which constitutes an image projection system to project one image by combining a plurality of projection images projected by a plurality of projectors on a screen while overlapping parts of the projection images with each other, the projector is provided with a deformation unit configured to carry out geometric deformation with respect to an image to be projected therefrom, and a setting unit configured to set a parameter for deformation processing by the deformation unit, wherein the setting unit sets the parameter for deformation processing based on a relation between a position of an overlap area in the projection image before the deformation by the deformation unit is carried out, and a position of an overlap area in the projection image after the deformation by the deformation unit has been carried out.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 27, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Makiko Mori
  • Patent number: 9903987
    Abstract: A laser optical device is provided with a plurality of laser light sources, a collimating lens that has an optical axis that intersects a line connecting the plurality of laser light sources in a plan view viewed from a direction perpendicular to both this line and the optical axis and collimates lights respectively emitted from the plurality of laser light sources, and a deflecting element that deflects a plurality of lights emitted from the collimating lens so output lights where the lights respectively emitted from the plurality of laser light sources are optically processed make contact.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: February 27, 2018
    Assignee: Funai Electric Co., Ltd.
    Inventors: Kenji Nagashima, Toyoshi Nogami, Tatsuya Ito
  • Patent number: 9813685
    Abstract: A projection display apparatus includes an image projecting unit projecting an image, an operation unit as an operation device whose output value changes depending on the amount of operation, a correction amount setting unit changing a keystone correction amount in accordance with an output value of the operation unit, and a keystone correcting unit performing keystone correction on an image to be projected in accordance with the keystone correction amount. A zero reference position in which the keystone correction amount is zero is set in an operation range of the operation unit. The correction amount setting unit sets a dead zone in the operation range such that the dead zone includes the zero reference position and an area surrounding this position, and sets the keystone correction amount to zero in accordance with the output value corresponding to the inside of the dead zone.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 7, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinji Kubota
  • Patent number: 9762872
    Abstract: An apparatus includes a projector to project an image, a three-dimensional sensor to measure three-dimensional data of an image projection range onto which the image is to be projected, and a processor to extract a plane area from the image projection range based on the three-dimensional data measured by the three-dimensional sensor, as a direction of the plane area, identify at least one of a long-side direction, a short-side direction, and a normal primary alignment direction of the plane area, using the direction of the plane area, perform a of an image area for the image to be projected by the projector with the plane area, and perform a secondary alignment of the image area with the plane area by performing a tracking process between a first contour of the image area aligned by the primary alignment and a sSpecond contour of the plane area.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: September 12, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Yasushi Sugama
  • Patent number: 9743052
    Abstract: A projector that projects an image includes a communication section that sends a projection request command that requests another projector connected to the projector to project a test image, an imaging section that captures an image of the test image projected in response to the projection request command by the another projector, and a layout recognition section that recognizes a relative layout relationship between the projector and the another projector based on the image captured by the imaging section.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 22, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hideo Fukuchi
  • Patent number: 9736387
    Abstract: There is provided an irradiation device including an irradiation unit configured to emit light, and an irradiation control unit configured to switch irradiation regions irradiated with the light by the irradiation unit according to a synchronization signal for controlling an exposure period of a pixel of an imaging device of an imaging unit.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: August 15, 2017
    Assignee: SONY CORPORATION
    Inventor: Tomonori Yokoyama
  • Patent number: 9733553
    Abstract: An information processing method applied to an electronic device having a projection assembly and a position-orientation sensor configured to detect position-orientation information of the electronic device is described. The method includes determining whether the electronic device is in a projection mode to obtain a first determination result; acquiring position-orientation information of the electronic device as detected by the position-orientation sensor when the first determination result indicates that the electronic device is in a projection mode; generating an adjustment line based on the position-orientation information; acquiring a preset reference line; and displaying the adjustment line and the reference line in a projected screen, to assist a user in adjusting the adjustment line to coincide with the reference line.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 15, 2017
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventor: Xiaodan Zhang
  • Patent number: 9664992
    Abstract: A lighting apparatus is provided capable of emitting light for image projection and light for illumination at the same time. The lighting apparatus includes: an imaging element that converts incident light into light corresponding to an image and outputs the light; a projection lens through which the light is projected onto an object; a first optical path taken by light that is emitted from the projection lens via the imaging element; and a second optical path taken by light that is emitted without passing through the imaging element and the projection lens.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: May 30, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kentaro Yamauchi, Atsushi Motoya, Ryo Kawamura
  • Patent number: 9654743
    Abstract: According to one of aspects, an electronic device includes: a camera; a controller configured to determine whether a measured value of a healthcare device is included in an image captured by the camera; and a communication unit configured to transmit information related to the measured value to an information providing device when the measured value is included in the image.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: May 16, 2017
    Assignee: KYOCERA CORPORATION
    Inventors: Naoki Harada, Tomoyasu Takahashi, Hiroki Itou, Kazuaki Nakae
  • Patent number: 9618753
    Abstract: According to one embodiment, a display device includes a position controller, a projection unit, and a reflector. The projection unit emits light including image information. The projection unit is held by a holder. The position controller is interposed between the holder and the projection unit. The reflector reflects at least a portion of the light emitted from the projection unit. The reflector is held by the holder. A position of the reflector with respect to the holder is fixed. A relative arrangement of the projection unit and the reflector is changeable by the position controller.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 11, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoya Tsuruyama, Shimpei Sawada, Akihisa Moriya, Aira Hotta, Yoshiyuki Kokojima, Masahiro Baba
  • Patent number: 9612516
    Abstract: A projection type image display apparatus (1) comprises a focus correction system (30). The system includes a temperature detection mechanism (16) for measuring temperature in the vicinity of a projection lens group (13), a correction amount calculation unit (18) for calculating a correction amount for correcting the focus shift caused by a temperature change, and a driving signal generation unit (19) for generating, based on the correction amount, a driving signal for driving a focus adjustment mechanism (15). If the user performs a focus adjustment using a focus operation input unit (23), a focus operation determination unit (21) determines that a focus adjustment has occurred independently of the focus correction system and changes a correction condition stored in a memory (20).
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: April 4, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Norio Maeda, Kohei Wataru, Kazuhiko Inoue, Masahiro Terada, Takashi Ohta, Yasumasa Sawai
  • Patent number: 9596440
    Abstract: A scanning laser projector includes a proximity sensor and a planarity detector. When the proximity sensor detects an object closer than a proximity threshold, laser power is turned down. The scanning laser projector can measure distance at a plurality of projection points in the projector's field of view. If the projection points lie substantially in a plane, laser power may be turned back up.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: March 14, 2017
    Assignee: Microvision, Inc.
    Inventors: P. Selvan Viswanathan, Robert James Jackson
  • Patent number: 9584724
    Abstract: A system includes a seeker having a reflective surface of rotation, an image detector configured to capture images of a field of view, and an imaging lens group configured to provide the images of the field of view from the reflective surface of rotation onto the image detector. The system also includes an electronics unit configured to process the captured images. The reflective surface of rotation could distort the field of view in the captured images, and the electronics unit could remove distortions in the captured images caused by the reflective surface of rotation. The electronics unit could remove the distortions in the captured images using inverse reflective anamorphosis. The reflective surface of rotation could include a concave surface, a convex surface, a cylindrical surface, an inverted straight cone, a slice of a sphere containing an outer curved surface, or at least one reflective surface rotatable around an optical axis.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 28, 2017
    Assignee: RAYTHEON COMPANY
    Inventor: Ken A. Fetterhoff
  • Patent number: 9576397
    Abstract: Disclosed are methods and systems for generating display pixel data so as to reduce latency when rendering a representation of a graphic on a display, such as for augmented-reality applications. The method comprises: receiving a set of display pixel coordinate-pairs at the graphics processing unit; applying a transform matrix to the set of display pixel coordinate-pairs to obtain a set of graphic pixel coordinate-pairs, the transform matrix calculated using orientation data received from an external reference; retrieving a set of graphic pixel data associated with the set of graphic pixel coordinate-pairs; and, determining a set of display pixel data based on the retrieved set of graphic pixel data.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 21, 2017
    Assignee: BlackBerry Limited
    Inventors: Karl-Anders Reinhold Johansson, Dan Zacharias Gärdenfors
  • Patent number: 9560327
    Abstract: A projection system includes an image capturing unit which, when a first pattern image is projected on a first projection area, captures an image capture area including the first projection area and at least a portion of a second projection area which overlaps the first projection area to obtain a first captured image and, when a second pattern image is projected on the second projection area, captures the image capture area to obtain a second captured image, a first projection unit which projects a first partial projection-target image extracted from a projection target image based on the first and second captured images and the projection target image on the first projection area, and a second projection unit which projects a second partial projection-target image extracted from the projection target image based on the first and second captured images and the projection target image on the second projection area.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: January 31, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Mikinori Ehara
  • Patent number: 9560329
    Abstract: The performance and the functionality of a projection-type video display device are improved to expand an application range of the projection-type video display device. The projection-type display device has two optical engines, increases the luminance of a display image, achieves a pseudo high resolution, or displays a three-dimensional image and a wide screen. The two optical engines have an adjusting mechanism to adjust a position on which an image is displayed. The adjusting mechanism has a plurality of mechanisms which adjust relative three-dimensional axis-direction positions between the two optical engines and inclinations of the optical engines with respect to axes. For example, in consideration of cross actions between adjustments, the plurality of adjusting mechanisms are allocated to the optical engines. As a result, the adjustments can be easily performed.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: January 31, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Shinro Inui, Kazuomi Kaneko, Nobuki Matsui
  • Patent number: 9551918
    Abstract: An image processing apparatus includes an analyzing unit, a changing unit, and a control unit. The analyzing unit analyzes a projection image projected by a projection unit. The changing unit changes, depending on an analysis result obtained by the analyzing unit for the projection image, dimensions of the projection image projected by the projection unit so as to obtain a resized projection image. The control unit performs control for correcting a distortion of the projection image projected by the projection unit, in accordance with an analysis result obtained by the analyzing unit for the resized projection image.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 24, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akihiro Ouchi
  • Patent number: 9514716
    Abstract: Considered is a case where an adjustment chart is projected larger than a screen that is a projection target and an outer frame is not projected on the screen. The position of a top side of the outer frame can be easily identified from an interval between intersections of a top side of the screen and sides of a rhombus. Similarly, the position of a right side of the outer frame can be easily identified from another interval, and a bottom side of the outer frame from still another interval.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: December 6, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yoshihiko Shinozaki
  • Patent number: 9516289
    Abstract: In a method for inhibiting an object contained in an image from becoming hard to be visually recognized when the image is divided and then projected in order to avoid an area on which a projected image is hard to be visually recognized, if, when an input image is to be divided by an unsuitable-for-projection area, a predetermined object exists at a position where the input image is divided, the position of division of the input image is changed to such a position that the object within an area corresponding to the unsuitable-for-projection area is not divided. Then, on areas that exclude the unsuitable-for-projection area, the divided input images are projected after being adjusted to sizes that match the areas.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: December 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Kojima
  • Patent number: 9509981
    Abstract: Architecture that combines multiple depth cameras and multiple projectors to cover a specified space (e.g., a room). The cameras and projectors are calibrated, allowing the development of a multi-dimensional (e.g., 3D) model of the objects in the space, as well as the ability to project graphics in a controlled fashion on the same objects. The architecture incorporates the depth data from all depth cameras, as well as color information, into a unified multi-dimensional model in combination with calibrated projectors. In order to provide visual continuity when transferring objects between different locations in the space, the user's body can provide a canvas on which to project this interaction. As the user moves body parts in the space, without any other object, the body parts can serve as temporary “screens” for “in-transit” data.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: November 29, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Andrew David Wilson, Hrvoje Benko
  • Patent number: 9459448
    Abstract: A beam scanning type display apparatus includes a reflection angle variable mirror that scans a beam light, at least two light detectors disposed at a predetermined distance in a beam scanning direction of the mirror that detects a light amount of screen reflection light, a distortion correction calculation unit that obtains a drive correction value of the mirror by calculating an irradiation distance and a screen inclination, from a light amount of a reflection light detected by the light detectors at two different scanning timings and an inclination angle of the mirror at this time, and a mirror driving unit that controls an inclination angle of the mirror by the drive correction value. A drive correction value of the mirror driving unit is obtained at a plurality of timings of a scanning period of beam light, and beam light is scanned at the corrected inclination angle of the mirror.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: October 4, 2016
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Shoji Yamamoto, Yoshiho Seo, Keiichi Betsui
  • Patent number: 9417513
    Abstract: A projector includes: a body including a light source, a display plane illuminated with light from the light source, and a projection optical system which projects light from the display plane; and a projection unit which projects the light from the display plane, which is projected from the projection optical system, toward an illumination-targeted plane, wherein the projection unit includes a negative power convex angle-widening mirror, and wherein the angle-widening mirror reflects light forming an image plane of the display plane for angle-widening, the image plane being inclined to the display plane.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: August 16, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Eiji Morikuni
  • Patent number: 9414051
    Abstract: An immersive video system includes a display, a sensor that provides information about a user's location relative to the display, a projector capable of projecting images onto the user, and a processor in communication with the display, the sensor, and the projector. The processor manipulates the images projected onto the user based on user location data from the sensor.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 9, 2016
    Assignee: Memory Engine, Incorporated
    Inventors: Matthew Ward, Jonathan Brill, Brian Chasalow
  • Patent number: 9389421
    Abstract: A display device includes a light source which outputs laser light, an illumination optical system which emits the laser light as illumination light, a spatial modulation element which diffracts the illumination light by displaying a diffraction pattern, a diffraction pattern acquiring unit which acquires a basic diffraction pattern generated based on an image, and a diffraction pattern process unit which uses the basic diffraction pattern and a correction diffraction pattern for correcting the basic diffraction pattern to generate, as the diffraction pattern to be displayed on the spatial modulation element, a combined diffraction pattern obtained by correcting the basic diffraction pattern by the correction diffraction pattern. The spatial modulation element displays diffracted light, which is diffracted by displaying the combined diffraction pattern, to a user as a fictive image.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 12, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Sugiyama, Kakuya Yamamoto, Kenichi Kasazumi
  • Patent number: 9383635
    Abstract: An image processing device is capable of suppressing the influence of the direction in which the image is projected on the projection surface to thereby improve the accuracy of the focus adjustment. The image processing device includes a detection section adapted to detect information regarding a direction in which an adjusting image for adjusting focus of an image to be projected on a projection surface is projected on the projection surface, and an adjusting image acquisition section adapted to obtain the adjusting image different in accordance with the information regarding the direction detected by the detection section.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 5, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yoshitaka Nakashin
  • Patent number: 9383591
    Abstract: A pico-projector device includes a light source operable to generate a light beam as a function of an image to be generated, a mirror mechanism operable to direct the light beam towards a displaying surface, and a driving circuit that supplies driving signals for controlling movement of the mirror mechanism. The driving circuit includes a compensation stage that receives angular velocity signals from a gyroscopic sensor coupled to the pico-projector device and generates the driving signals as a function of the angular velocity signals, thereby stabilizing the image projected on the displaying surface with respect to undesired movements of the pico-projector device.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: July 5, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventor: Fabio Pasolini
  • Patent number: 9372386
    Abstract: A projection system includes a first projector and a second projector. The projection system superimposes images projected from the first and second projectors on a projection surface and displays a projected image. The projection system includes a support configured to support the first projector and the second projector. The support supports the first projector and the second projector in positions where projection distances from the first projector and the second projector to the projection surface are different.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: June 21, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Daigo Yamano, Hideki Takasuka
  • Patent number: 9332238
    Abstract: The distance between projection coordinates to which the center of an image are projected and the center coordinates are added to the projection coordinates to obtain projection center coordinates. The distance is added to the coordinates to which the four corners of the image are projected to obtain projection four-corner coordinates. A distance shorter than the minimum of the distances between the projection four-corner coordinates and the projection center coordinates is decided as an output margin distance. Projection source coordinates to be projected to coordinates apart from the projection center coordinates by the output margin distance are obtained. A maximum of the distances between the projection source coordinates and the projection center coordinates is decided as an input margin distance. Divided images decided based on ½ of horizontal size of the image and the input margin distance are deformed and outputted.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 3, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tetsurou Kitashou
  • Patent number: 9332237
    Abstract: A projector includes a projection section adapted to project light, a human detection section adapted to detect a human existing in a predetermined region, and a mode switching section adapted to switch an operation mode to one of a content mode for projecting light of an image related to a content by the projection section, and an illumination mode for projecting light for illumination by the projection section in accordance with a detection result of the human detection section.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: May 3, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiroaki Shinha, Koichi Miyasaka, Hirofumi Kasuga, Tadashi Kinebuchi, Shuji Narimatsu, Hidehito Iisaka
  • Patent number: 9323138
    Abstract: There is provided an image output device including a projectable region calculating unit that calculates a projectable region which is a region on a screen in which laser beam is projectable based on a trajectory in which scanning with the laser beam is performed using information specifying the screen onto which an image is projected by two-dimensional scanning with the laser beam, a projection window setting unit that causes the laser beam to be emitted and sets a projection window serving as a range in which the image is projected in the projectable region, and a generating unit that generates a pixel value of each of positions corresponding to pixels included in the image within the projection window on the screen for each pixel in a manner that the image is projected in the range set by the projection window.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: April 26, 2016
    Assignee: SONY CORPORATION
    Inventors: Katsunori Seno, Naotaka Osawa, Tomotaka Miyashiro
  • Patent number: 9325955
    Abstract: A light source apparatus includes an optical plate, a convergence optical system, a transfer optical system and two casting optical systems. The optical plate includes a translucent segment and a fluorescent substance layer. The convergence optical system converges an excitation light to the translucent segment and to the fluorescent substance layer. The transfer optical system transfers a spot of the excitation light to a transfer plane of the optical plate. The first casting optical system projects a light source image of fluorescence, which is formed on the fluorescent substance layer, onto a common casting plane. The second casting optical system which projects the spot of the excitation light onto the common casting plane. Optical path lengths of the two casting optical systems are the same.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 26, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Hiroshi Ogino, Masahiro Ogawa
  • Patent number: 9319502
    Abstract: According to an aspect, a mobile electronic device includes an image projecting unit, a distance detecting unit, and a processing unit. The image projecting unit projects an image to a projection plane. The distance detecting unit detects a distance from the image projecting unit to the projection plane. The processing unit causes the image projecting unit to project a projection image including at least part of a reference image in such a manner that a ratio of the projection image to a whole of the reference image is changed based on the change in the distance detected by the distance detecting unit.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 19, 2016
    Assignee: KYOCERA CORPORATION
    Inventors: Yasuhiro Ueno, Shigeki Tanabe
  • Patent number: 9316890
    Abstract: A method and apparatus is provided for identifying information to facilitate adjusting a projector's position to achieve a specified projected image on a projection surface. In an embodiment, a computing device comprising one or more sensors, which have a known spatial relationship with a projector, includes a position adjustment service configured to identify, based at least in part on the known spatial relationship between the one or more sensors and the projector, a current position of the projector relative to positions of a plurality of reference points that define a projection surface. The position adjustment service is further configured to determine a target position for the projector, determine differences between the current position of the projector and the target position for the projector, and perform one or more actions based upon the determined differences between the current position of the projector and the target position for the projector.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 19, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuro Motoyama, Tomohito Shimizu
  • Patent number: 9319622
    Abstract: A system, method and program product for enhancing video content being projected by a video projector. A video projector is disclosed having a projection system for projecting video content onto a surface; a camera for capturing image data from the surface; an analysis system for analyzing captured image data; and a correction system for enhancing the video content being projected onto the surface based on the analysis of the captured image data.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: April 19, 2016
    Assignee: International Business Machines Corporation
    Inventors: Douglas S. Brown, John F. Kelley, Kristin S. Moore, Todd P. Seager
  • Patent number: 9305211
    Abstract: A method and apparatus for generating a dewarped document using a document image captured using a camera are provided. The method includes obtaining the document image captures using the camera, extracting text lines from the document image captured using the camera, determining a projection formula to convert positions of respective points constituting the extracted text lines to coordinates projected on a plane of the dewarped document, determining a target function used to calculate a difference between text lines projected on the place of the dewarped document using the projection formula and real text lines, calculating parameters that minimize the target function, and converting the document image to the dewarped document by substituting the calculated parameters into the projection formula.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 5, 2016
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Mu-sik Kwon, Nam-ik Cho, Sang-ho Kim, Beom-su Kim, Won-kyo Seo
  • Patent number: 9294746
    Abstract: A device includes a projector to project an image onto a surface. The projector includes a micro-mirror device comprising an array of micro-mirrors. Light from a light source is reflected by one or more of the array of micro-mirrors, to project the image onto the surface. In one implementation, the micro-mirror device is rotated to correspondingly rotate the projected image on the surface. In one implementation, the device is housed in a table lamp.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: March 22, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Colter E. Cederlof