Moving During Projection Patents (Class 359/446)
-
Patent number: 11409242Abstract: A holographic projector includes a spatial light modulator, a light receiving member and a driver. The spatial light modulator is arranged to receive and represent a computer-generated hologram and spatially modulate light incident on the spatial light modulator to form a holographic reconstruction in accordance with the computer-generated hologram. The light receiving member is arranged to receive spatially modulated light along an optical axis from the spatial light modulator and the holographic reconstruction is formed on the light receiving member. The driver is coupled to the light receiving member to move the light receiving member in a plane. The driver is configured to move the light receiving member while maintaining an orientation of the light receiving member relative to the spatial light modulator substantially constant.Type: GrantFiled: August 1, 2018Date of Patent: August 9, 2022Assignee: DUALITAS LTDInventors: Jamieson Christmas, Alexander Cole
-
Patent number: 11159866Abstract: The present application provides an electronic device. After a display screen of the electronic device is attached to a screen frame, the display screen extends beyond the screen frame at at least two opposite edges and extends toward the second side of the display screen by taking the screen frame as an axis, and then the display screen is mounted by a mounting structure connected with the screen frame, so that the display screen is kept flat by a tensile force provided to the display screen via the mounting structure.Type: GrantFiled: April 15, 2020Date of Patent: October 26, 2021Assignee: HISENSE VISUAL TECHNOLOGY CO., LTD.Inventors: Hui Zhou, Jianxin Yang, Yingrui Wang, Jian Zhang
-
Patent number: 11119509Abstract: A system and method of displaying graphic information including a plurality of unmanned aerial vehicles that together form a display screen. Light elements are provided on each vehicle. A computer wirelessly connects to and controls the vehicles and is activated to deploy the vehicles and arrange them in a pattern in the air. The light elements become pixels on the display screen. The light elements may be on opposing regions of the unmanned aerial vehicles, thereby making it possible to view the display screen from more than one direction. Wireless signals are transmitted from the computer to the light elements. Light elements are selectively switched on and off in a manner that causes the light emitted therefrom to form textual or graphic images on one side and/or the other side of the display screen. When not in use, the vehicles are stored in a storage facility having charging stations.Type: GrantFiled: October 31, 2018Date of Patent: September 14, 2021Inventor: Pedro Arango
-
Patent number: 10955736Abstract: There is provided a screen capable of sufficiently reducing speckles. A screen for displaying an image by being irradiated with a light beam from a projector, is provided with a plurality of particles each including a first part and a second part different in dielectric constant, a particle layer having the plurality of particles, and electrodes which form an electric field for driving the particles of the particle layer by applying a voltage to the particle layer.Type: GrantFiled: March 24, 2020Date of Patent: March 23, 2021Assignee: Dai Nippon Printing Co., Ltd.Inventors: Makio Kurashige, Kaori Nakatsugawa, Kazutoshi Ishida, Hiroyuki Honda, Masanori Umeya, Shogo Kubota
-
Patent number: 10942366Abstract: A three-dimensional image display device includes a case partially or entirely formed of a light transmission member; a substantially flat member having light transmission characteristics erected inside the case; and an image output unit that outputs a predetermined image so that the image can be displayed on the flat member.Type: GrantFiled: January 15, 2019Date of Patent: March 9, 2021Assignee: Gatebox Inc.Inventors: Minori Takechi, Naohiro Yasukawa, Wataru Takehi, Takumi Gima
-
Patent number: 10901312Abstract: A speckle damping system for dampening speckle on a projection screen for a projection display system employing coherent or partially coherent light sources (e.g., lasers, LEDs) are disclosed. In one embodiment, a rotatably coupled system is disclosed, comprising: a set of actuators; a set of rotatably coupled mounts, each of said set of rotatably coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said rotatably coupled mount is in moveable mechanical communication with said projection screen. In another embodiment, a linearly coupled system is disclosed comprising: a set of actuators; a set of linearly coupled mounts, each of said set of linearly coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said linearly coupled mount is in moveable mechanical communication with said projection screen.Type: GrantFiled: September 25, 2019Date of Patent: January 26, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Brad Basler, Trevor Davies, Douglas J. Gorny, Wilson Allen
-
Patent number: 10775690Abstract: A cinema screen can be vibrated by a screen vibrator assembly. A screen vibrator assembly can include a vibrator, a mount bracket, and an isolation device. The vibrator can be positioned to generate a vibration for vibrating a cinema screen. The mount bracket is configured to be coupled to a screen support structure of the cinema screen. The isolation device is configured to couple the vibrator to the mount bracket to isolate the mount bracket from the vibration.Type: GrantFiled: May 12, 2020Date of Patent: September 15, 2020Assignee: IMAX Theatres International LimitedInventors: Denis Gilles Tremblay, Gashtaseb Ariana
-
Patent number: 10691006Abstract: A screen can be vibrated by vibrators that are drivable by signals. Each vibrator can be adjacent in position to other vibrators that are drivable by different types of drive signals than a drive signal associated with the vibrator. The number of drive signals can be equal to or less than the number of vibrators. A vibrator assembly for a vibrator can include a baffle and a transducer that couples to the baffle. The transducer can vibrate at least a portion of the screen. The vibrating screen can be monitored by a sensor and an analyzer unit that can analyze image speckle and screen displacement artifacts in captured images of images projected onto the screen and output results of the analysis.Type: GrantFiled: December 8, 2015Date of Patent: June 23, 2020Assignee: IMAX Theatres International LimitedInventors: Denis Gilles Tremblay, Gashtaseb Ariana
-
Patent number: 10664103Abstract: A curved display apparatus providing an air touch input function including: a curved display including a concavely curved monitor to display a three-dimensional image; a three-dimensional filter unit having the same radius of curvature as the curved monitor and disposed in front of the curved monitor; a position input unit disposed in front of the three-dimensional filter unit and configured to detect a three-dimensional position according to a user's non-touch motion in a predetermined sensing region; and an image control unit configured to control a three-dimensional image displayed on the curved monitor by transmitting position information sensed through position input unit to the curved display, wherein air touch input through a user's non-touch motion is performed in a concave region of the curved display.Type: GrantFiled: November 10, 2014Date of Patent: May 26, 2020Assignee: TOVIS CO., Ltd.Inventors: Yong Beom Kim, Joon Seog Kim
-
Patent number: 10429663Abstract: A speckle damping system for dampening speckle on a projection screen for a projection display system employing coherent or partially coherent light sources (e.g., lasers, LEDs) are disclosed. In one embodiment, a rotatably coupled system is disclosed, comprising: a set of actuators; a set of rotatably coupled mounts, each of said set of rotatably coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said rotatably coupled mount is in moveable mechanical communication with said projection screen. In another embodiment, a linearly coupled system is disclosed comprising: a set of actuators; a set of linearly coupled mounts, each of said set of linearly coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said linearly coupled mount is in moveable mechanical communication with said projection screen.Type: GrantFiled: February 8, 2018Date of Patent: October 1, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Brad Basler, Trevor Davies, Douglas J. Gorny, Wilson Allen
-
Patent number: 10134309Abstract: A decorative cover includes a lenticular lens sheet, an outer frame, a connection point, and a plurality of LED chips. The outer frame is fitted onto an outer periphery of a smartphone. The lenticular lens sheet is integrated with the outer frame and covers a rear surface of the smartphone. The plurality of LED chips is arranged parallel to a longitudinal direction of cylindrical lenses on a flat surface side of the lenticular lens sheet. A drive unit changes a light emission state of each of the plurality of LED chips. The drive unit is connected with a control unit of the smartphone through a connection point and the connection point. The drive unit changes the light emission state of each LED chip in accordance with an operating state of the smartphone operated by the control unit.Type: GrantFiled: October 23, 2017Date of Patent: November 20, 2018Assignee: FUJIFILM CorporationInventors: Samito Nakamura, Hiromi Takenoshita, Daisaku Abiru
-
Patent number: 9964844Abstract: Screen vibration systems are provided that can vibrate theater screens using acoustical, electromagnetic, or another type of energy while reducing the presence of image artifacts that may otherwise be visible as result of vibrating the screen. In one example of a screen vibration system, the system includes a screen, a permanent magnet mounted to the screen, and a magnetic source positioned with respect to the permanent magnet and uncoupled from the screen. The screen is moveable in response to a changing magnetic field from the magnetic source.Type: GrantFiled: May 9, 2014Date of Patent: May 8, 2018Assignee: IMAX CORPORATIONInventors: Hamed Herati, Denis Gilles Tremblay, Oliver Nicholas Komarnycky
-
Patent number: 9921416Abstract: A speckle damping system for dampening speckle on a projection screen for a projection display system employing coherent or partially coherent light sources (e.g., lasers, LEDs) are disclosed. In one embodiment, a rotatably coupled system is disclosed, comprising: a set of actuators; a set of rotatably coupled mounts, each of said set of rotatably coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said rotatably coupled mount is in moveable mechanical communication with said projection screen. In another embodiment, a linearly coupled system is disclosed comprising: a set of actuators; a set of linearly coupled mounts, each of said set of linearly coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said linearly coupled mount is in moveable mechanical communication with said projection screen.Type: GrantFiled: January 2, 2015Date of Patent: March 20, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Brad Basler, Trevor Davies, Douglas J. Gorny, Wilson Allen
-
Patent number: 9678356Abstract: A projection screen apparatus has: a display panel having an external panel surface and an internal panel surface; an actuator device by way of which an oscillating motion is impartable to at least a part of the projection screen apparatus; a diffuser screen, disposed adjacently to the internal panel surface, to which the oscillating motion with respect to the display panel is imparted by way of the actuator device; and a gap between the internal panel surface of the display panel and an inner surface of the diffuser screen directed toward the internal panel surface being filled at least in part with at least one viscoelastic filler material.Type: GrantFiled: January 15, 2016Date of Patent: June 13, 2017Assignee: Robert Bosch GmbHInventors: Tobias Digel, Cedric Lubenow, Frank Fischer, Martin Edel
-
Patent number: 9479757Abstract: A structured-light projector including a light source, an optical system for spectral decomposition, an encoding device, an optical system for spectral recombination and an optical system for projection. The encoding device includes a mask that includes a binary encoding matrix pattern formed from 2*n rows and m columns, a sub-pattern defined by the rows “1” to “n” being illuminated by an image of the beam with the wavelength ?min and a sub-pattern defined by the rows “n+1” to “2*n” being illuminated by an image of the beam with a wavelength ?max. The two sub-patterns being identical or complementary, and two neighboring columns each including a different binary encoding from the other.Type: GrantFiled: December 16, 2015Date of Patent: October 25, 2016Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Remi Michel, David Partouche-Sebban
-
Patent number: 9182606Abstract: A rear-projection 3D auto-stereoscopic displays system using time-sequencing approach is configured for forming a plurality of perspective views of 3D images of an object or scene in a field of view. 3D displays system comprises a display component, an optical scanning assembly a sensor and a controller. The optical scanning assembly includes a first lens array, a complex of two (second and third) lens arrays, an optical beam shifting device and an optical projection block. The complex of two lens arrays is used as a screen for the 3D display system. The present invention can be employed especially for a wide range of screen sizes and allows significant reduction or elimination of optical cross-talk, at the same time reducing mechanical complexity of 3D display system.Type: GrantFiled: January 29, 2014Date of Patent: November 10, 2015Inventor: Emine Goulanian
-
Patent number: 8955984Abstract: The present disclosure relates to systems and methods that are related to projection.Type: GrantFiled: September 30, 2008Date of Patent: February 17, 2015Assignee: The Invention Science Fund I, LLCInventors: Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Richard T. Lord, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., Lowell L. Wood, Jr.
-
Patent number: 8917223Abstract: There are provided an illumination unit and a display apparatus which are capable of improving convenience for users. The illumination unit includes a light source section including a laser light source, an optical device allowing a laser beam from the laser light source to pass therethrough, a drive section allowing the optical device to oscillate, and a control section performing one or both of control of decreasing brightness of emitted light from the light source section and control of outputting to the outside information that oscillation of the optical device has been stopped when the oscillation of the optical device has been stopped during drive operation by the drive section.Type: GrantFiled: February 7, 2012Date of Patent: December 23, 2014Assignee: Sony CorporationInventor: Hiroshi Isobe
-
Publication number: 20140362437Abstract: The present disclosure includes systems and methods for solving speckle problems by exciting the screen with a more complex vibration spectrum. A range of frequencies provides, in effect, a collection of overlapping patterns of high and low displacement, so that all regions of the screen have enough motion to reduce visible speckle. As previously discussed acceptable speckle may be approximately 15% contrast or less, preferably approximately 5% contrast or less at approximately 15 feet from the screen.Type: ApplicationFiled: June 6, 2014Publication date: December 11, 2014Inventors: Douglas J. McKnight, Kevin Curtis
-
Patent number: 8876295Abstract: A method for displaying information via a light source on rotating helicopter blades of an aircraft such as a helicopter is provided. The light source may be a laser light source and the light therefrom may be directed onto the aircraft blade by one or more motion controlled mirrors and a computer controller. A sensor is capable of determining the position of helicopter blades during rotation, such that light may be projected upon only the moving blade at precisely timed intervals, so as to form perceivable graphics and/or messages thereon. In addition, the method may be utilized for displaying graphics and/or messages on rotating propellers of fixed wing aircraft.Type: GrantFiled: February 29, 2012Date of Patent: November 4, 2014Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Michael V. Scanlon
-
Publication number: 20140247484Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicant: RealD Inc.Inventors: Kevin Curtis, David A. Coleman, Gary D. Sharp
-
Publication number: 20140233099Abstract: A system for presenting an aerial display over an audience of spectators. The system includes a plurality of unmanned aerial vehicles (UAVs) and a plurality of flexible projection screens. Each of the screens is supportable in a display air space by the UAVs. The system includes a ground control system with a processor executing a fleet manager module and with memory storing a different flight plan for each of the UAVs. During operation during a display time period, the UAVs execute the flight plans to move and to position the flexible projection screens within the display air space. The flexible projection screens each may include a mesh body configured to have low wind resistance and to provide a projection surface for reflecting light. The system may include a projector projecting light onto the projection surface of at least one of the flexible projection screens during the display time period.Type: ApplicationFiled: February 15, 2013Publication date: August 21, 2014Applicant: DISNEY ENTERPRISES, INC.Inventors: James Alexander Stark, Robert Scott Trowbridge, Clifford Wong
-
Patent number: 8724218Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.Type: GrantFiled: July 9, 2012Date of Patent: May 13, 2014Assignee: RealD Inc.Inventors: Kevin Curtis, David A. Coleman, Gary D. Sharp
-
Patent number: 8675125Abstract: A minimized-thickness angular scanner of electromagnetic radiation includes an optical sandwich having a two-dimensional (2D) image source, and a scanning assembly that includes a first optic and a second optic, wherein at least one of the first optic and the second optic are oscillatorily translating. Translation of the optics provides for generation of a three-dimensional (3D) image, while the optical sandwich design provides for compact implementation of 3D displays.Type: GrantFiled: April 26, 2006Date of Patent: March 18, 2014Assignee: Parellel Consulting Limited Liability CompanyInventors: Oliver Cossairt, Gregg E. Favalora
-
Publication number: 20140063600Abstract: A stiffening strip at selected edges of a screen may enable the use and mounting of a high-elastic modulus substrate screen material. Such screen materials may be engineered to provide polarization-preserving characteristics, and be applied to or part of the high-elastic modulus substrate. Furthermore, the stiffening strip may enable the use of screen vibration techniques to reduce speckle in display applications that use projection screens, particularly those display applications using illumination sources prone to speckle such as laser-based projection. The screen vibration may be provided by a vibrating device attached to the stiffening strip.Type: ApplicationFiled: September 6, 2013Publication date: March 6, 2014Applicant: RealD Inc.Inventors: Gary D. Sharp, Kevin R. Curtis, David A. Coleman
-
Patent number: 8608315Abstract: A device and method for pre-operative selection and determination of a position of an endoprosthesis using a first rear projection screen with variable opacity and a movable second rear projection screen located in front of the first projection screen in respect of rear projection. The device may include a first projection unit for generating at least one first projection of the region of a subject in which an endoprosthesis is to be fitted, onto the first rear projection screen, and a second projection unit for generating at least one second projection of the endoprosthesis onto the second rear projection screen, the scaling of the first and second projection being identical. In an alternative embodiment, the second rear projection screen can be omitted.Type: GrantFiled: June 30, 2010Date of Patent: December 17, 2013Assignee: Siemens AktiengesellschaftInventors: Thomas Friese, Stephan Merk
-
Patent number: 8602564Abstract: The present disclosure relates to systems and methods that are related to projection in response to position.Type: GrantFiled: August 22, 2008Date of Patent: December 10, 2013Assignee: The Invention Science Fund I, LLCInventors: Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Richard T. Lord, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., Lowell L. Wood, Jr.
-
Patent number: 8567958Abstract: An apparatus, system, and method are disclosed for managing projection areas on a surface. A search module is configured to search for one or more markers defining one or more projection areas on a surface. An area module is configured to select a usable projection area from the one or more projection areas on the surface. A boundary module is configured to determine a boundary for the usable projection area. A constraint module is configured to constrain a projection from a projector onto the surface within the boundary of the usable projection area in response to the boundary module determining the boundary of the usable projection area.Type: GrantFiled: March 17, 2011Date of Patent: October 29, 2013Assignee: International Business Machines CorporationInventors: Gary D. Cudak, Christopher J. Hardee, Randall C. Humes, Heather C. Miller
-
Publication number: 20130235454Abstract: A display unit includes a projection screen for a head-up display. The projection screen is mounted and arranged in a carrier element in such a way that it can pivot about an axis of inclination, the incline of the screen being adjustable by a pivoting device. The pivoting device includes at least one worm gear.Type: ApplicationFiled: September 16, 2011Publication date: September 12, 2013Inventors: Christian Hopf, Alexander Noel, Horst Rumpf
-
Publication number: 20130100358Abstract: An optical display system includes a projection system for outputting images having an image refresh frequency and a two-dimensional screen for receiving the images. The screen is coupled to a motion unit which allows a motion of the screen at a frequency which is equal to the refresh frequency of the images.Type: ApplicationFiled: October 19, 2012Publication date: April 25, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: International Business Machines Corporation
-
Patent number: 8421991Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artifacts. Alternative sound systems too are detailed.Type: GrantFiled: January 25, 2011Date of Patent: April 16, 2013Assignee: IMAX CorporationInventors: Steven Charles Read, Brian John Bonnick, George Eric Jacques
-
Patent number: 8416494Abstract: A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction perpendicular to an optical axis of light that is incident to the diffusion layer.Type: GrantFiled: June 17, 2011Date of Patent: April 9, 2013Assignee: Seiko Epson CorporationInventors: Satoshi Kinoshita, Eiji Morikuni, Akira Shinbo
-
Publication number: 20130010356Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.Type: ApplicationFiled: July 9, 2012Publication date: January 10, 2013Applicant: REALD INC.Inventors: Kevin Curtis, David A. Coleman, Gary D. Sharp
-
Patent number: 8337025Abstract: A projection type display device includes a image displaying element having image display areas for displaying a plurality of images respectively, a projection optical system having an emitting part for emitting projection light flux to the image display areas of the image displaying element, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas of the image displaying element. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.Type: GrantFiled: July 29, 2009Date of Patent: December 25, 2012Assignee: JVC Kenwood CorporationInventors: Manabu Kobayashi, Ryusaku Takahashi, Toshitaka Murata, Takatsugu Aizaki, Masahiko Miyake, Hironobu Fukutomi
-
Patent number: 8303120Abstract: An image display apparatus includes a projector receiving an image signal and projecting image light and a screen including a projection plane of arbitrary shape. The projector and screen are connected with link mechanisms and link mechanisms. The relative position and posture between the projector and the screen are automatically or manually changeable. The relative position and posture between the projector and the screen are measured, and correction parameters for correcting distortion of image light projected from the projector onto the screen are calculated from the previously set viewing position of the viewer and the shape of the projection plane of the projector. Based on the calculated correction parameters, the image signal inputted into the projector is subjected to distortion correction processing. It is therefore possible to allow the viewer to see a clear image even if the position of the screen is changed.Type: GrantFiled: February 21, 2007Date of Patent: November 6, 2012Assignee: Panasonic CorporationInventors: Hiroshi Hoshino, Ryo Kawamura, Atsuyuki Yamamoto
-
Patent number: 8294987Abstract: An image transforming device enables 3-D auto-stereoscopic display of a two-dimensional projected image. Optical waveguides in the form of ribbons are used. A stack of ribbons at a receiving end receives the projected image. A horizontal and vertical ribbon arrangement at the other end of the ribbon forms a screen for display of a transformed 3D image. A spacer material at the output end separates the vertical positioning of each ribbon. A screen may be assembled from the output ends of multiple devices forms. The two-dimensional image may be projected in changing colors. When changing colors are projected, the device may further include two lens arrays: a static micro-lens array and a dynamic array of micro-lenses, which is capable of motion synchronized with the changing colors.Type: GrantFiled: September 9, 2011Date of Patent: October 23, 2012Inventor: Henricus Servatius Fransiscus van Nuland
-
Patent number: 8253868Abstract: In one embodiment, a display device includes a movably suspended diffuser screen, and a voice-coil mechanism coupled to the diffuser screen. A signal-processing device, such as a microprocessor, is coupled to a driver circuit to produce a drive signal at an output terminal for the voice coil in response to a voltage sensed across the voice coil. The driver circuit includes shutdown control to drive its output terminal to a high-impedance state to accommodate sensing voltage across the voice coil. Thus, the signal for the voice coil is produced by the signal-processing device in a closed-loop feedback arrangement without the need for separate position-sensing elements. In a preferred arrangement, a second voice coil is coupled to the diffuser screen and to the signal-processing circuitry to produce a second signal for the second voice coil to accommodate generating a circular motion for the diffuser screen without stationary points.Type: GrantFiled: November 29, 2007Date of Patent: August 28, 2012Assignee: Texas Instruments IncorporatedInventors: David Joseph Mehrl, Stephen Wesley Marshall
-
Patent number: 8157383Abstract: A system for displaying information via a light source on rotating helicopter blades of an aircraft such as a helicopter is provided. The light source may be a laser light source and the light therefrom may be directed onto the aircraft blade by one or more motion controlled mirrors and a computer controller. A sensor is capable of determining the position of helicopter blades during rotation, such that light may be projected upon only the moving blade at precisely timed intervals, so as to form perceivable graphics and/or messages thereon. In addition, such system may be utilized for displaying graphics and/or messages on rotating propellers of fixed wing aircraft.Type: GrantFiled: October 1, 2008Date of Patent: April 17, 2012Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Michael V. Scanlon
-
Patent number: 8159528Abstract: A visual display apparatus suitable for use with a viewing apparatus capable of providing stereoscopic view of an image from 360-degree directions around it, or a display apparatus capable of displaying an observation image that changes depending on what angle it is viewed at or who views it, is described. The visual display apparatus comprises a main optical system that is concentric and rotationally symmetric about a center axis and a plurality of subordinate optical systems of identical construction, which are juxtaposed on a circumference concentric about the center axis. A combined optical system comprising the main optical system and each subordinate optical system has an exit pupil positioned on a side of the main optical system that faces away from each subordinate optical system and on a side of the center axis that faces away from each subordinate optical system on an optical path.Type: GrantFiled: March 28, 2007Date of Patent: April 17, 2012Assignee: Olympus CorporationInventor: Togino Takayoshi
-
Patent number: 8149508Abstract: An immersive dome includes a number of novel features designed to enhance the performance of the immersive dome over presently-known immersive dome environments. Projectors are mounted in a multi-tier tower, out of sight beneath a viewing platform positioned to provide optimal wrap-around viewing. The projection surface consists of open-cell foam that allows passage of behind-surface sound into the dome while allowing unwanted ambient noise within the dome to escape. A visually-reflective coating, in conjunction with the open cell structure, provides a textured surface that acts as a micro-baffle and suppresses cross-reflection of projected imagery.Type: GrantFiled: November 8, 2010Date of Patent: April 3, 2012Assignee: Applied Minds, LLCInventors: Bran Ferren, Douglas B. Schwartz
-
Patent number: 8130445Abstract: There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enlarging the viewing angle and a Fresnel lens 12 as a second layer having angular conversion means for converting the angles of incidence of the incident light beams into the substantially same direction. One of the first and second layers has a diffusion capability that diffuses the incident light beams and has moving means for moving that layer relative to the other. Alternatively, the first and second layers both have the diffusion capability, and at least one of the layers has moving means for moving that layer relative to the other.Type: GrantFiled: May 24, 2011Date of Patent: March 6, 2012Assignee: Seiko Epson CorporationInventors: Eiji Morikuni, Akira Shinbo, Hideya Seki
-
Patent number: 8089692Abstract: A projection type image display apparatus includes an optical engine that emits a light according to image signal, a Fresnel lens on which the light emitted by the optical engine is incident and emitting the light as a parallel light, and a diffusion member that diffuses the parallel light emitted by the Fresnel lens. The projection type image display apparatus further includes a driving unit that moves the Fresnel lens or the diffusion member in a plane parallel to an emitting surface of the Fresnel lens or the diffusion member, a frame the supports the Fresnel lens, the diffusion member and the driving unit, a resilient supporting body that supports a weight of the Fresnel lens or the diffusion member with respect to the frame, and a holding unit that holds the Fresnel lens or the diffusion member so as to be movable in the plane parallel to the emitting surface of the Fresnel lens or the diffusion member.Type: GrantFiled: July 21, 2009Date of Patent: January 3, 2012Assignee: Mitsubishi Electric CorporationInventors: Norihiro Watanabe, Atsushi Michimori, Kazuo Kadowaki, Takumi Kijima
-
Publication number: 20110249329Abstract: A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction perpendicular to an optical axis of light that is incident to the diffusion layer.Type: ApplicationFiled: June 17, 2011Publication date: October 13, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Satoshi Kinoshita, Eiji Morikuni, Akira Shinbo
-
Publication number: 20110222151Abstract: There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enlarging the viewing angle and a Fresnel lens 12 as a second layer having angular conversion means for converting the angles of incidence of the incident light beams into the substantially same direction. One of the first and second layers has a diffusion capability that diffuses the incident light beams and has moving means for moving that layer relative to the other. Alternatively, the first and second layers both have the diffusion capability, and at least one of the layers has moving means for moving that layer relative to the other.Type: ApplicationFiled: May 24, 2011Publication date: September 15, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Eiji MORIKUNI, Akira SHINBO, Hideya SEKI
-
Patent number: 7988307Abstract: An image display device includes a lighting section including a light source, a light modulation section that modulates light emitted from the lighting section in accordance with an image signal to form an image, and a scintillation reduction section that reduces the scintillation caused by the light emitted from the lighting section, and the scintillation reduction section reduces the scintillation so that a plurality of areas having different extents of reduction of the scintillation from each other is formed in the image.Type: GrantFiled: July 9, 2008Date of Patent: August 2, 2011Assignee: Seiko Epson CorporationInventor: Shunji Kamijima
-
Patent number: 7986457Abstract: A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction perpendicular to an optical axis of light that is incident to the diffusion layer.Type: GrantFiled: December 18, 2009Date of Patent: July 26, 2011Assignee: Seiko Epson CorporationInventors: Satoshi Kinoshita, Eiji Morikuni, Akira Shinbo
-
Patent number: 7959302Abstract: The invention has an object of providing a display device, which can freely change a display position or a display area, and can display a high grade image, and a game machine, such as a slot machine etc., which includes the display device.Type: GrantFiled: March 22, 2007Date of Patent: June 14, 2011Assignee: Seiko Epson CorporationInventors: Norio Nakamura, Toshiyuki Hosaka, Toru Kurihara
-
Patent number: 7961389Abstract: There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enlarging the viewing angle and a Fresnel lens 12 as a second layer having angular conversion means for converting the angles of incidence of the incident light beams into the substantially same direction. One of the first and second layers has a diffusion capability that diffuses the incident light beams and has moving means for moving that layer relative to the other. Alternatively, the first and second layers both have the diffusion capability, and at least one of the layers has moving means for moving that layer relative to the other.Type: GrantFiled: June 11, 2010Date of Patent: June 14, 2011Assignee: Seiko Epson CorporationInventors: Eiji Morikuni, Akira Shinbo, Hideya Seki
-
Patent number: 7922333Abstract: A projector includes a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, a vibration generating unit that has a piezoelectric element for vibrating the light diffusing unit, and a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit. An image is displayed using the diffused light emitted from the light diffusing unit.Type: GrantFiled: April 26, 2007Date of Patent: April 12, 2011Assignee: Seiko Epson CorporationInventors: Hidehiro Akahane, Eiji Morikuni
-
Patent number: 7880965Abstract: In a projection-type image display device, a driven member of a screen is displaced in a plane parallel to the screen. The driven member can be a Fresnel lens or a diffusing member. An elastic retaining unit holds the driven member in such a manner as to be capable of moving in the plane parallel to the screen, and a pair of driving sources applies driving forces in mutually intersecting directions to the driven member. A control circuit drives the pair of driving sources with driving waveforms having a prescribed phase difference therebetween so that the driven member makes continuous motion in a plane parallel to the screen when an image is projected.Type: GrantFiled: August 6, 2008Date of Patent: February 1, 2011Assignee: Mitsubishi Electric CorporationInventors: Atsushi Michimori, Norihiro Watanabe, Masao Narita, Hideaki Arita