Projection Device Patents (Class 348/744)
  • Publication number: 20100149434
    Abstract: The invention relates to a device (FIG. 14) making it possible to generate a group of light beams with statically or dynamically controlled pointing adjustment, e.g. with the aid of an optical matrix head feeding the last stage of an item of multibeam digital projection video equipment, comprising a certain number of rotary optical disks. The device comprises a certain number of elements/devices for static adjustments, e.g. of screw plus spring type, or dynamic adjustments, e.g. of micro jack and/or piezo-electric type, carrying out dynamic trim control with the aid of a device, e.g. of pyramidal, conical or other shape, within an optical matrix head. A digital control providing feedback control for the position and lighting of the sources thus makes it possible to create a succession of coloured pixels at the output of the device. According to the desired configurations, several sources may be associated, e.g. within an optical matrix head, to create a matrix of coloured pixels.
    Type: Application
    Filed: January 25, 2007
    Publication date: June 17, 2010
    Inventor: Jean-Marc Desaulniers
  • Publication number: 20100142912
    Abstract: Image display methods and systems are provided wherein for each of a plurality of still images of a motion picture, rendering a respective sequence of sub-frames such that in each sub-frame one or more portions of the still image is altered with the sequence of sub-frames summing to the still image, and for each pair of consecutive still images that is one of a plurality of pairs of still images of the plurality of still images of the motion picture, the pair comprises first and second consecutive still images and there is a variation in the rendering of the respective sequence of sub-frames between the first and second consecutive still images. Intensity compensation may be applied such that when sub-frames are displayed, an image substantially equivalent to the still image is perceptible.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 10, 2010
    Inventor: VINCENT SO
  • Publication number: 20100141780
    Abstract: A projection system uses a transformation matrix to transform a projection image p in such a manner so as to compensate for surface irregularities on a projection surface. The transformation matrix makes use of properties of light transport relating a projector to a camera. A display pipeline of user-supplied image modification processing modules are reduced by first representing the processing modules as multiple, individual matrix operations. All the matrix operations are then combined with, i.e., multiplied to, the transformation matrix to create a modified transformation matrix. The created transformation matrix is then used in place of the original transformation matrix to simultaneously achieve both image transformation and any pre and post image processing defined by the image modification processing modules.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Inventors: Kar-Han Tan, Tomio Sonehara
  • Patent number: 7733429
    Abstract: Systems and methods are provided that facilitate automatic convergence and geometry alignment in projection systems. Preferably, an optical element such as a lens array is coupled to all areas of the projection system's screen and to a detector element such as a photocell array. In operation, each lens of the lens array is adapted to map an individual portion or region of the screen onto the photocell array. A microprocessor, controller or the like uses the data output from the photocells to instruct an alignment controller to center or steer the beams to compensate for convergence error at a particular location. In a center alignment mode, four (4) or more beacon dots located about the periphery of the screen are detected to determine screen size and position, which is used to center the video image and the centers of the mapped regions on the screen.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: June 8, 2010
    Assignee: Mitsubishi Digital Electronics America, Inc.
    Inventors: Brian Maxson, James E. Hicks
  • Patent number: 7733310
    Abstract: Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: June 8, 2010
    Assignee: Prysm, Inc.
    Inventors: Roger A. Hajjar, David Kindler, Patrick Tan, David Kent, Phillip H. Malyak
  • Publication number: 20100134630
    Abstract: A projection system has a projector having a varying frame rate during the course of operation. The projector having warning message frames in between actual video frames. The warning frames are not detectable to humans. A light source which emits infrared light and ultraviolet light at wavelengths and intensities detectable by movie cameras (e.g., camcorders) and undetectable to humans.
    Type: Application
    Filed: June 27, 2007
    Publication date: June 3, 2010
    Inventor: Yongshik Yoon
  • Publication number: 20100134702
    Abstract: A projector system projects derivation markers (3010) together with a guarantee marker (3020) onto a projector screen, allows noise images as marker candidates, automatically generates a plurality of provisional two-dimensional projection conversion formulas, and uses the position of the guarantee marker (3020) to detect the true conversion formula from among the generated plurality of conversion formulas.
    Type: Application
    Filed: March 7, 2008
    Publication date: June 3, 2010
    Applicants: LUNASCAPE CO., LTD., TAKRAM DESIGN ENGINEERING
    Inventors: Hidekazu KONDO, Kinya TAGAWA
  • Publication number: 20100134643
    Abstract: An electronic apparatus includes: a projection unit that projects a projection-target original image onto a projection surface; an imaging unit that captures an image of the projection surface onto which an image is projected by the projection unit; and a control unit that analyzes the photographic image of the projection surface captured by the imaging unit and adjusts a correction quantity representing an extent to which the projection-target original image is to be corrected based upon analysis results.
    Type: Application
    Filed: June 16, 2008
    Publication date: June 3, 2010
    Applicant: NIKON CORPORATION
    Inventor: Erika Koishi
  • Patent number: 7728913
    Abstract: An electro-optical device comprising an image signal line that supplies an image signal to a sampling circuit, the image signal line extending from an image signal terminal, bypassing a data line driving circuit, and reaching the sampling circuit. The image signal line has a first straight line portion extending in one direction, a second straight line portion extending in another direction, and an intermediate wiring portion connecting the first straight line portion and the second straight line portion. An angle of a corner formed between the first straight line portion, the second straight line portion, and the intermediate wiring portion is an obtuse angle. The intermediate wiring portion is wired to pass around a vertical conduction terminal. Detailed information on various example embodiments of the inventions are provided in the Description of Exemplary Embodiments below, and the inventions are defined by the appended claims.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 1, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Hiroaki Mochizuki
  • Patent number: 7728912
    Abstract: A display system has a device for projecting a light beam and a display. The light beam includes encoded data. The display includes light sources selectively activated according to the encoded data received from the device.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: June 1, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Andrew L. Van Brocklin
  • Publication number: 20100128184
    Abstract: An apparatus includes a lamp, a power supply for supplying power to lamp, an image processing unit for displaying an image according to any one of a plurality of video signals applied externally, and a control unit for causing the power supply to start supplying power to the lamp when at least one of the plurality of video signals is applied in an initial state, checking whether or not any one of the plurality of video signals is applied within a predetermined period of time from the time when the applied video signal is stopped, making the power supply continue to supply power to the lamp if at least one of the plurality of video signals is applied, and making the power supply stop supplying power to the lamp if any one of the plurality of video signals has not been applied.
    Type: Application
    Filed: May 15, 2008
    Publication date: May 27, 2010
    Inventors: Daisuke Moriwaki, Koichi Ara, Michio Tomizawa
  • Patent number: 7724311
    Abstract: An optical projecting system includes a light-splitting unit for splitting composite source light into a plurality of composite light beam components, and a reflective color wheel rotatable about a rotation axis and including a plurality of multi-layer light-reflecting sections for further splitting each of the composite light beam components into a plurality of colored light beam components for subsequent modulation and projection. Each of the multi-layer light-reflecting sections includes a plurality of light-filtering layers stacked along the rotation axis, and each being capable of reflecting light within a predefined distinct wavelength range, and permitting transmission of light outside the predefined distinct wavelength range therethrough. Sequences of the light-filtering layers of an adjacent pair of the multi-layer light-reflecting sections are different from each other.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: May 25, 2010
    Assignee: Asia Optical Co., Inc.
    Inventors: Po-Sung Kao, Te-Wei Liu
  • Patent number: 7724206
    Abstract: A position adjustment method for adjusting positions of two projection images projected from multiple projectors contained in a multi-projection display onto a projection surface such that the images overlap. A first step involves setting pixel values of colors such that a predetermined characteristic is exhibited in an overlapping area when the adjustment images are projected. A second step involves producing adjustment image data corresponding to the adjustment images. Colors of the adjustment images are allocated to patterns such that the patterns overlap when the adjustment images are projected. A third step involves giving the adjustment image data to the multiple projectors and calculating evaluation values associated with the image data that is obtained by taking an image of the projection surface on which the adjustment images are projected from the multiple projectors. A forth step involves performing position adjustment for the projection images based on the evaluation values.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: May 25, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Toshiki Saito
  • Patent number: 7722189
    Abstract: In one embodiment, the invention provides a method. The method comprises projecting multiple scenes simultaneously on a display screen in interlaced-fashion; and directing light for each scene to a distinct viewing zone defined spatially in relation to the display screen. A system comprising a display; and a lenticular mechanism coupled to the display and having a plurality of lens elements to direct light from the display into distinct viewing zones defined spatially in relation to the display is also provided.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: May 25, 2010
    Inventor: Mark W Miles
  • Publication number: 20100123687
    Abstract: An information processing apparatus includes: an acquisition portion that acquires position/direction information indicative of a position and a direction of a projection device; a selection portion that selects at least one piece of drawing data from a plurality of pieces of drawing data relating to parts provided in an object; a generation portion that generates a projection drawing from the drawing data selected by the selection portion; a conversion portion that calculates a distance between the object and the projection device, and a direction of the projection device from the position/direction information, and converts the projection drawing into a perspective drawing by using the calculated distance and the calculated direction; and a control portion that controls the projection device so as to project the perspective drawing onto the object.
    Type: Application
    Filed: April 3, 2009
    Publication date: May 20, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takeshi NAGAMINE
  • Publication number: 20100123836
    Abstract: An image-projection system includes a light source, a light guide, and an image-projection module. The light source is configured to provide planar illumination. The light guide has a first end and a second end, with the first end being coupled with the light source to receive the planar illumination and the second end being configured to provide a transmitted planar illumination. The light guide may have an internal structure providing a reflective surface for reflecting the planar illumination received from the first end. The image-projection module may be coupled with the second end of the light guide and configured to receive an image signal input and project, in response to the image signal, an image via the transmitted planar illumination.
    Type: Application
    Filed: November 19, 2008
    Publication date: May 20, 2010
    Inventors: Joe-Yu Wu, Yu-Tang Li, Hsin-Hsiang Lo, Chung-Yu Lai, Chun-Chuan Lin
  • Publication number: 20100118184
    Abstract: The image display apparatus is capable of receiving a first video signal and image data. The apparatus includes a first electronic zoom processing part performing first electronic zoom processing on the first video signal to output a first electronic zoom processed video signal of a predetermined resolution, a video converting part converting the image data into a second video signal, a second electronic zoom processing part performing second electronic zoom processing on the second video signal to output a second electronic zoom processed video signal of the predetermined resolution, and a displaying part displaying an image corresponding to each of the first and second electronic zoom processed video signals. The second electronic zoom processed video signal output from the second electronic zoom processing part is input to the displaying part through the first electronic zoom processing part without being subjected to the first electronic zoom processing.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 13, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Toshihiko Yokoyama
  • Publication number: 20100119150
    Abstract: An image processor that corrects an image signal, includes: a frequency analysis section that analyzes a spatial frequency of a luminance component of the image signal; a luminance component correction amount calculating section that calculates an amount of correction of the luminance component of the image signal according to the analysis result of the frequency analysis section only for an image signal in a predetermined luminance level range of a predetermined spatial frequency band; and a luminance component correcting section that corrects the luminance component of the image signal by using the amount of correction calculated by the luminance component correction amount calculating section.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 13, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masashi KANAI
  • Patent number: 7714943
    Abstract: An ultra-thin rear projection display system (RPDS) is disclosed. The system uses a small flat mirror, a small non-rotationally symmetric mirror and a larger non-rotationally symmetric mirror to achieve a D-to-d ratio of around 11:1 while rendering a significantly distortion free image on the screen. The first two mirrors are significantly smaller than the size of the screen, while the third mirror is significantly larger than the first two mirrors but smaller than the screen. In one embodiment, the lens and light engine are positioned horizontally to one side and, in another example, the lens and light engine are positioned vertically, projecting downwards. In one example, an image processor is used to correct for the remaining distortions. In another example, the system is adapted such that the light rays forming the projected image are within a certain range of angles such that a TIR Fresnel lens could be used to collimate the image.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: May 11, 2010
    Assignee: Geo Semiconductor Inc.
    Inventors: Zorawar S. Bassi, Gopal Ramachandran, Gregory A. Prior
  • Patent number: 7714942
    Abstract: A projector assembly having a mobile terminal, a first light source and a projection lens is provided. The mobile terminal has a display and a body where the display includes a first flat display panel and the body includes an input device. The first light source supplies light to the first flat display panel. The first flat display panel displays images using the light from the first light source. The projection lens projects the images displayed in the first flat display panel.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 11, 2010
    Assignee: LG Display Co. Ltd.
    Inventors: Nam-Yong Kong, Eui-Yeol Oh
  • Publication number: 20100110309
    Abstract: A portable electronic device with multimedia function includes a central processing unit, and a projection module, a multimedia information management module, a power management module all electronically connected to the central processing unit. The projection module projects multimedia signals of the electronic device onto a surface to display the multimedia signals. The multimedia information management module classifies and selects to play the multimedia signals under the control of the central processing unit. The power management module sets a power consumption mode under the control of the central processing unit in accordance with multimedia signals format.
    Type: Application
    Filed: July 21, 2009
    Publication date: May 6, 2010
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: YI-AN TSAI
  • Publication number: 20100110042
    Abstract: An input/output device has a light source in optical communication with a digital mirror device (DMD) special light modulator for projecting an image and an image sensor in optical communication along a shared optical path with the same spatial light modulator for receiving an image.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 6, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Gene Frantz
  • Publication number: 20100110310
    Abstract: A mobile terminal having a projector and a method for controlling a display unit in of the mobile terminal are provided. The method includes outputting, if a presentation application is selected, a screen image for performing the selected presentation application through the display unit and the projector, turning off power supplied to an entire area of the display unit, and performing, if a touch is detected through the touch screen, a function according to the detected touch in the selected presentation application.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 6, 2010
    Applicant: Samsung Electronics Eo., Ltd.
    Inventors: Jin Sook AHN, Soo Hyung KIM, Min Yong AUM
  • Publication number: 20100110285
    Abstract: A display system includes: an image data output device which outputs image data; an image display device which displays an image corresponding to the image data; and a control device which controls the image data output device; wherein one of the control device and the image data output device has a compression rate setting unit which determines whether the image corresponding to the image data is a natural image or not and sets a compression rate for the image in accordance with a type of the image; and the image data output device has an image data output unit which outputs a compressed image data acquired by compressing the image data at the compression rate set by the compression rate setting unit.
    Type: Application
    Filed: October 2, 2009
    Publication date: May 6, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuhiko NOBORI
  • Publication number: 20100110308
    Abstract: A method, apparatus and system for projecting visible and non-visible images is provided. The system and apparatus include: a visible light source and a non-visible light source; at least one light modulator enabled for receiving and modulating the visible light and non-visible light to respectively form visible images and non-visible images, the non-visible images formed independent of the visible images; and projection optics enabled for receiving and co-projecting the visible and non-visible images in alignment. Furthermore, video data for projection is formed by replacing a portion of visible bits with at least a portion of non-visible bits in a data stream, such that the visible images and the non-visible images can be co-projected upon processing the video data.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Applicant: Christie Digital Systems USA, Inc.
    Inventors: Stuart Nicholson, Thomas Patrick Pawelko, Lawrence Stewart Paul
  • Publication number: 20100110264
    Abstract: System including image projector and video camera. System further includes signal processor configured to be in communication with image projector and video camera, and with a video monitor. Image projector is configured for receiving and projecting first image onto surface of an object. Video camera is configured for capturing second image including first image as projected onto object. System is configured for transmitting second image for display by video monitor. Method that includes providing image projector and video camera. Method further includes providing signal processor configured to be in communication with image projector, video camera, and a video monitor. Method also includes causing image projector to receive and to project first image onto surface of an object, causing video camera to capture second image including first image as projected onto object, and causing system to transmit second image for display by video monitor.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Applicant: Lucent Technologies, Inc.
    Inventor: Martin D. Carroll
  • Publication number: 20100103304
    Abstract: An electronic device includes a heat generating member arranged in a body, and a heat transmission member of a shape of a three-dimensional body having at least a first surface that is joined to the heat generating member and a second surface that is joined to an inner surface of the body. The first surface of the heat transmission member has an area greater than or equal to an area of the heat transmission member joined to the heat generating member, and an entire area of the second surface is joined to the inner surface of the body.
    Type: Application
    Filed: December 31, 2009
    Publication date: April 29, 2010
    Applicant: NIKON CORPORATION
    Inventor: Akinori ITO
  • Publication number: 20100103331
    Abstract: A projection system has a projector having a frame rate exceeding human flicker sensitivity. The projector having warning message frames in between actual video frames. The warning frames are not detectable to humans. A light source which emits infrared light and ultraviolet light at wavelengths and intensities detectable by movie cameras (e.g., camcorders) and undetectable to humans.
    Type: Application
    Filed: June 27, 2007
    Publication date: April 29, 2010
    Inventors: Youngshik Yoon, Xueming Henry Gu
  • Publication number: 20100103330
    Abstract: An image projecting method comprises determining the position of a projection surface within a projection zone of at least one projector based on at least one image of the projection surface, the projection zone being sized to encompass multiple surface positions and modifying video image data output to the at least one projector so that the projected image corresponds generally to the projection surface.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 29, 2010
    Applicant: SMART TECHNOLOGIES ULC
    Inventors: Gerald D. MORRISON, Paul Anthony AUGER, Mark Andrew FLETCHER, Gregory Gordon FORREST, Holly PEKAU
  • Publication number: 20100106607
    Abstract: An interactive food and/or drink ordering system, in which a computer controlled projector is mounted above a surface such that a menu of food and/or drink selection options is projected onto some or all of the surface. The selection options are selectable by a user operating an interface device connected to the computer, such as a wireless track pad.
    Type: Application
    Filed: December 13, 2007
    Publication date: April 29, 2010
    Inventors: Martin Riddiford, Daniel Potter, Noel Hunwick
  • Publication number: 20100103248
    Abstract: The present invention provides a three dimensional image projection systems comprised of the projection of two different portions of the image in light beams of differing spectral properties by automated luminairs which can be remotely positioned and can reverse roles during repositioning.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 29, 2010
    Inventor: Martin Farnik
  • Publication number: 20100097313
    Abstract: A lid structure, apparatus and method for displaying graphical information uses beams of coherent light that are emitted in a scanning manner to project the beams of coherent light onto a display surface to form the graphical information on the display surface.
    Type: Application
    Filed: December 21, 2009
    Publication date: April 22, 2010
    Inventors: Mark D. Montierth, James A. Hall, JR.
  • Publication number: 20100099458
    Abstract: A mobile terminal is disclosed. Specifically, in a mobile terminal having an image photographing or projecting function, the present invention is able to change a photographing or projecting angle of the mobile terminal into a horizontal or vertical direction. And, the present invention is able to change a display direction of an image displayed on a display unit of the mobile terminal in correspondence with the changed photographing or projecting angle to correspond to the changed photographing or projecting angle.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 22, 2010
    Inventors: Duck Moon SHIN, Seong Young Seo, Jeong Hyuk Yoon
  • Patent number: 7697079
    Abstract: Provided are an illumination system and a projection TV employing the same. The illumination system includes: a laser light source including a plurality of lasers which emit laser beams including a plurality of beamlets; a first diffractive optical element which separates the laser beams according to wavelength and which focuses the separated beams onto different segments of a second refractive optical element; and the second diffractive optical element which focuses and superimposes a plurality of beamlets, of the laser beams transmitted by the first diffractive optical element, in order to spatially average the laser beams and to eliminate laser speckle.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pavel Serafimovich, Sungha Kim, Byoungho Cheong, Sangwhoe Dho
  • Publication number: 20100085491
    Abstract: The invention relates to a projection system for displaying at least one visual image based on three primary colours, comprising a signal processing unit for converting said visual image into at least a visual image based on four primary colours, a frequency band being associated to each colour primary, first display means for displaying three first primary colours of said visual image on a screen and second display means for displaying at least the fourth primary colour of said visual image on said screen. According to the invention, the system further comprises optical filtering means that are adapted to enhance the separation between the frequency spectrum of the first three primary colours of the first display means and the frequency spectrum of the at least fourth primary colour of the second display means. Application to anti-camcorder systems.
    Type: Application
    Filed: February 20, 2008
    Publication date: April 8, 2010
    Inventors: Jean-Ronan Vigouroux, Pascal Bourdon, Didier Doyen, Jean-Jacques Sacre, Patrick Morvan, Sylvain Thiebaud
  • Publication number: 20100085425
    Abstract: A 3D image is created by using two digital projectors having overlapping projection regions. The two digital projectors both emit polarized light, and one are arranged at different angles to each other, such that individual images projected from respective digital projectors can be discerned by the use of polarized eyeglasses. Individualized light transport matrices are used to coordinate together the two digital projectors.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 8, 2010
    Inventor: Kar-Han Tan
  • Publication number: 20100085424
    Abstract: A system (10) for two-dimensional (2-D) or three-dimensional (3-D) display of images includes a projector (100) for projecting the images; a processor (20) for determining whether to project 2-D or 3-D images; glasses (30) for viewing the 3-D images; a first transmitter (22) for synchronizing the projector with the glasses for viewing 3-D images; a switch (34) in the glasses to detect whether the glasses are on or off; a second transmitter (36) in the glasses for transmitting on/off position information; a receiver (24) for receiving switch position information from the second transmitter; wherein the receiver sends the on/off information to the processor; and wherein the processor switches the projector to project 2-D when the glasses are off.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Inventors: Paul J. Kane, Cathleen D. Cerosaletti
  • Publication number: 20100079683
    Abstract: A display apparatus is provided which, when projecting a video onto a curved surface of an object for display, can realize an undistorted display of the video. The measuring means outputs the distance information representing the distance to the object. Based on the distance information produced by the measuring means, the curved surface contour is detected with high precision. According to at least the detected curved surface contour distortions, pixels of the display image are unevenly rearranged to correct the video information before it is output. This arrangement realizes an undistorted display of video when the video is projected onto the curved surface of the object.
    Type: Application
    Filed: April 20, 2009
    Publication date: April 1, 2010
    Inventors: Tomoki Kobori, Satoshi Ouchi, Koji Hirata, Hidehiro Ikeda, Kazuo Shikita
  • Publication number: 20100074284
    Abstract: An object is to provide a light source unit that focuses a laser beam having different divergence angles in longitudinal direction and lateral direction, without deviating longitudinally and laterally from an incident end-face of an optical fiber, and also that simplifies assembling lenses into a lens barrel. The light source unit herein provided includes a first lens barrel 1 that holds cylindrical lenses 10 and 11, and 12 for forming a parallel-ray laser beam by refracting the laser beam 9 having different divergence angles in longitudinal direction and lateral direction emitted from a laser element 7, a second lens barrel 2 that holds circular lenses 13 and 14 for focusing the parallel-ray laser beam onto the entrance of the optical fiber 3, and a lens holder 15 that holds at least one of the cylindrical lenses and is inserted into the first lens barrel 1 and fixed therein.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 25, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Jyunichi AIZAWA, Yukio Sato, Mitoru Yabe
  • Publication number: 20100073578
    Abstract: The present invention provides an image display device allowing accurate detection of a pointed position on a projection image to be achieved. The image display device include: an image light generating section generating image light based on an input video signal; a projecting section projecting the image light onto a screen to form a projection image; a reflection light splitting section splitting part of reflection light of the projection image from the screen to another direction; a light receiving section receiving the split light; an image generating/obtaining section generating a display image from the video signal and obtaining the projection image corresponding to the inputted video signal from the light receiving section; a position detecting section detecting a position pointed out on the projection image as a pointed position based on the display image and the projection image to output information of the pointed position on the projection image.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 25, 2010
    Applicant: SONY CORPORATION
    Inventor: Xiaodi Tan
  • Publication number: 20100073579
    Abstract: There is provided an optical member comprising: a first optical layer having: a first main face formed with a concave section having a concave curved surface, and a plurality of convex ridges having concave curved surfaces provided in concentric circular fashion around said concave section; and a second main face formed with: a convex section having a convex curved surface that is provided facing the concave section and constituting a second main face facing the first main face; and a plurality of convex ridges having convex curved surfaces provided facing the plurality of convex ridges having the concave curved surface, provided in concentric circular fashion around the convex section; and a second optical layer provided on the first main face of the first optical layer; and a third optical layer provided on the second main face of the first optical layer; wherein the refractive index of the first optical layer is higher than the refractive index of the second optical layer and is higher than the refractive
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naotada Okada, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki
  • Publication number: 20100066675
    Abstract: The subject application relates to a system(s) and/or methodology that facilitate vision-based projection of any image (still or moving) onto any surface. In particular, a front-projected computer vision-based interactive surface system is provided which uses a new commercially available projection technology to obtain a compact, self-contained form factor. The subject configuration addresses installation, calibration, and portability issues that are primary concerns in most vision-based table systems. The subject application also relates to determining whether an object is touching or hovering over an interactive surface based on an analysis of a shadow image.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 18, 2010
    Applicant: Microsoft Corporation
    Inventors: Andrew D. Wilson, Steven Bathiche
  • Publication number: 20100066921
    Abstract: Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, the light generated from the stack of diodes is emitted perpendicular to the plane of the imager device via a plurality of vertical waveguides that are coupled to the optical confinement regions of each of the multiple laser diodes comprising the imager device. Each of the laser diodes comprising a single pixel is individually addressable, enabling each pixel to simultaneously emit any combination of the colors associated with the laser diodes at any required on/off duty cycle for each color. Each individual multicolor pixel can simultaneously emit the required colors and brightness values by controlling the on/off duty cycles of their respective laser diodes.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 18, 2010
    Applicant: OSTENDO TECHNOLOGIES, INC.
    Inventors: Hussein S. El-Ghoroury, Robert G.W. Brown, Dale A. McNeill, Huibert DenBoer, Andrew J. Lanzone
  • Publication number: 20100067181
    Abstract: A computer with a fully integrated virtual keyboard projector and a display projector. The computer includes a base having a CPU, a video card and memory, a screen pivotally mounted to one side of the base, and a display projector mounted to an opposite side of the base and angled to project a computer generated image onto the screen. Further, the computer includes a keyboard projector mounted to the opposite side of the base to project a keyboard onto a surface adjacent to the opposite side of the base. Further, the computer includes another display projector mounted to the opposite side of the base and digitally synchronized with the first display projector for projecting a superimposed image.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 18, 2010
    Applicant: International Business Machines Corporation
    Inventors: Courtney S. Bair, Eric R. Kern
  • Publication number: 20100066818
    Abstract: In a three-dimensional video image projecting device and projecting method for projecting on a screen, by means of video image projectors, a three-dimensional video image which can be three-dimensionally viewed through three-dimensional glasses having a first polarizing filter and a second polarizing filter arranged thereon, the screen is obtained as a cylindrical body, with an inner circumferential face being a screen face, a plurality of video image projectors are disposed to be opposed to the screen face, and the video image projectors produce a continuous, three-dimensional video image in a circumferential direction, by projecting, from the video image projectors, three-dimensional video images, each of which has an angle of 30 degrees in a circumferential direction of the screen face, arranged horizontally along the circumferential direction of the screen face.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 18, 2010
    Applicant: SYSTEM PRO CO., LTD.
    Inventor: Kunio GOTO
  • Patent number: 7677758
    Abstract: An illumination system is provided, which provides a plurality of light beams to a light valve. The illumination system includes a plurality of light sources, a polynomial lens and an optical scanning element. The light sources are capable of emitting the light beams. The polynomial lens is disposed on light paths of the light beams and located between the light sources and the light valve. The polynomial lens shapes the light beams into a plurality of rectangular light beams. The optical scanning element is disposed on light paths of the rectangular light beams and located between the polynomial lens and the light valve. The optical scanning element is capable of moving for scanning the rectangular light beams on the light valve unidirectionally or back and forth along a direction, and the rectangular light beams partially overlap with each other on the light valve.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: March 16, 2010
    Assignee: Young Optics Inc.
    Inventors: Chu-Ming Cheng, Shang-Yi Wu, Tien-Pao Chen
  • Publication number: 20100060804
    Abstract: A projection type display device 1 includes a memory portion 12C for storing a voice guide data 120 recorded preliminarily, associating the voice guide data 120 with the use situation; a voice reproducing portion 12B for reproducing the voice guide data 120; a light source driving portion 13, a light source 14, a liquid crystal panel 15, a lens 16 and a liquid crystal panel driving portion 17 as an image display portion for displaying images by projection; and a control portion for detecting the use situation of each portion, and simultaneously if the voice guide data 120 corresponding to the use situation exists, for obtaining the voice guide data 120 corresponding to the use situation from the memory portion 12C and for reproducing it in the voice reproducing portion 12B.
    Type: Application
    Filed: February 25, 2009
    Publication date: March 11, 2010
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hidekazu Masukawa, Tatsuhiko Ikehata
  • Publication number: 20100060805
    Abstract: According to one embodiment, a discrimination module that discriminates whether an input image signal is of CG images or natural images, a color correction module that applies color correction processing for CG images to the input image signal when the input image signal is determined to be of CG images or applies color correction processing for natural images to the input image signal when the input image signal is determined to be of natural images, and a projection module that generates an optical image based on the image signal applied with the color correction processing, and projects and displays the image on a screen through a projection lens, are included.
    Type: Application
    Filed: April 7, 2009
    Publication date: March 11, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuyuki Takeda, Osamu Sato
  • Publication number: 20100060803
    Abstract: Projection systems and methods may provide improved remote capabilities and interaction with client devices. Further, systems and methods may provide for calibration of a projection system, in particular using an auxiliary device. Further, methods may provide control of audio associated with presentation data, in particular at client devices.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 11, 2010
    Applicant: Apple Inc.
    Inventors: Brandon Dean Slack, David Robbins Falkenburg, Reese T. Cutler
  • Patent number: 7673996
    Abstract: An image projection apparatus includes: an imaging portion that takes an image of an object; an optical element that is disposed halfway on an optical path between the object and the imaging portion, and that branches the optical path; a projection portion that projects image light onto the object through the optical element; a dust prevention cover that includes an opening on an optical axis between the object and the optical element, and that covers at least the optical element to protect the optical element from dust; and a transparent dust prevention member that is provided in the dust prevention cover to close the opening, and that has a reflection surface preventing reflection light, which is obtained by receiving the image light from the projection portion and reflecting the image light, from being incident on an entrance pupil of the imaging portion.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 9, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tsutomu Abe