With Reflector Or Additional Screen Patents (Class 359/449)
  • Patent number: 11656500
    Abstract: An optical device includes a light source and a polarization selective optical element. The polarization selective optical element includes a stack of a plurality of cholesteric liquid crystal layers. The plurality of cholesteric liquid crystal layers includes a first cholesteric liquid crystal layer with liquid crystal molecules arranged in a first helical configuration having a first pitch range for light of a first wavelength range and a second cholesteric liquid crystal layer with liquid crystal molecules arranged in a second helical configuration having a second pitch range for light of a second wavelength range. The second wavelength range is different from the first wavelength range.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: May 23, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Yuge Huang, Fenglin Peng, Lu Lu, Junren Wang
  • Patent number: 11657747
    Abstract: A display device includes a substrate, a gate line and a data line. The substrate includes a first side edge and a second side edge, a curvature of the first side edge is greater than a curvature of the second side edge, and the curvature of the second side edge is not equal to zero. The gate line and the data line are disposed on the substrate, and a curvature of the gate line is different from a curvature of the data line.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: May 23, 2023
    Assignee: InnoLux Corporation
    Inventors: Yu-Chia Huang, Yuan-Lin Wu, Kuan-Feng Lee, Tsung-Han Tsai
  • Patent number: 11568525
    Abstract: A moiré image processing device is provided, including a light-transmitting film, a light sensor, and an image processor. The light-transmitting film includes a plurality of microlenses, and a light-incident surface and a light-exit surface, where the microlenses are disposed on the light-incident surface, the light-exit surface, or a combination thereof according to a distribution pattern. The light sensor includes a photosensitive surface, where the photosensitive surface faces the light-exit surface, there are a plurality of pixels on the photosensitive surface, and the pixels sense the microlenses to obtain a photosensitive image corresponding to the distribution pattern. The image processor is coupled to the light sensor, where the image processor performs, according to a virtual image and the photosensitive image, image processing of simulating a moiré effect to generate a moiré image, where the virtual image corresponds to the distribution pattern and is similar to the photosensitive image.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 31, 2023
    Assignee: inFilm Optoelectronic Inc.
    Inventor: Chih-Hsiung Lin
  • Patent number: 11549650
    Abstract: A light emitting diode, LED, filament arrangement (100) is provided. The LED filament arrangement comprises at least one LED filament (120) which in turn comprises an array of a plurality of light emitting diodes (140), LEDs. The at least one LED filament extends along an axis, A. The LED filament arrangement further comprises at least one reflector element (200) which is configured to at least partially reflect the light emitted from the at least one LED filament during operation. The at least one reflector element has a spiral shape and is arranged at least partially around the at least one LED filament such that the at least one reflector element extends along the axis, A.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 10, 2023
    Assignee: Signify Holding B.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet
  • Patent number: 11527181
    Abstract: A system for simultaneously producing immersive visual effects on an inside of an enclosure and passive visual effects to be viewed from the outside of the enclosure. The enclosure includes a plurality of sidewalls each having a reflective inner surface facing one other. The system includes a digital video display positioned to direct digital video imagery through the semi-reflective sidewall and into the enclosure. Light of the digital video imagery reflects off the reflective inner surfaces of plurality of sidewalls, which allow a percentage of the light to leave the enclosure, making the visual effects observable from the outside. The light will continue this cycle of reflection and transmission, creating an observable infinity effect from the outside, and an entirely enclosed visual experience from the inside.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: December 13, 2022
    Inventor: David Ralph Cicirelli
  • Patent number: 11521525
    Abstract: In one aspect, a method includes the step of A mobile projection system; the system comprising: a hermetically sealed base unit configured to be releasably attached to an automobile; a microprocessor configured to receive a plurality of projectable images from a remote server over a wireless network; and a remote server configured to store a plurality of selected images over a period of time; a projection means configured to project a selected image through a translucent lens.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: December 6, 2022
    Inventor: Gaurav Garg
  • Patent number: 11510302
    Abstract: A light-emitting apparatus can reduce flicker and retain power efficiency. A method can include driving, by a light emitting element (LEE) driver circuit, first, second, and third LEEs using a pulse width modulation (PWM) driving scheme to generate light of a first color, the first, second, and third LEEs configured to emit different colors, alternating, by the LEE driver circuit, between driving the first, second, and third LEEs using a hybrid driving scheme and the PWM driving scheme, and after alternating between driving the first, second, and third LEEs in the hybrid and PWM driving schemes, driving, by the LEE driver circuit, the first, second, and third LEEs using the hybrid driving scheme.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: November 22, 2022
    Assignee: Lumileds LLC
    Inventors: Yifeng Qiu, Alan Andrew McReynolds
  • Patent number: 11480794
    Abstract: Aspects described herein include an optical arrangement that defines a field of view relative to an optical reference point. The optical arrangement comprises a reflective element arranged within the field of view, an off-axis, short-throw projector arranged outside the field of view, and a substantially transparent projection screen arranged within the field of view. The projection screen is configured to preferentially direct imagery projected by the off-axis, short-throw projector toward the reflective element, and to, after direction by the reflective element, transmit the imagery toward the optical reference point.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 25, 2022
    Assignee: Disney Enterprises, Inc.
    Inventors: Eric C. Haseltine, Quinn Yorklun Jen Smithwick
  • Patent number: 11448801
    Abstract: An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from a thin-film interference filter having a stack of dielectric layers. The coating may include an ink layer on the thin-film interference filter. The transparent glass layers may have one or more textured surfaces that allow light at high angles to enter the transparent layers and reflect off the coatings at high angles, thereby adjusting optical properties of the coatings.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 20, 2022
    Assignee: Apple Inc.
    Inventors: James R. Wilson, Matthew S. Rogers
  • Patent number: 11385459
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Min Seong Yi, Jae Wook Kang, Il Hun Seo, Yun Mo Chung, Mi Yeon Cho
  • Patent number: 11328631
    Abstract: In various embodiments, the present invention is directed to an interior-light-utilizing display obtained by laminating a reflection structure and a light diffusion film, in which the light diffusion film has an internal structure including a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index in the film. The interior-light-utilizing display provides improved luminance and is capable of stably maintaining constant display characteristics even where the incident angle of the external light changes.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 10, 2022
    Assignee: LINTEC Corporation
    Inventors: Kentaro Kusama, Tatsuki Kuramoto
  • Patent number: 11016226
    Abstract: A variofocal display device includes an image source and a display. The image source is configured to project image light. The display includes a first optical diffuser and a second optical diffuser. The display is configured to receive the image light. The first diffuser is configured to diffuse the image light at the first optical diffuser when the image light has a first polarization, and to diffuse the image light at the second optical diffuser when the image light is configured has a second polarization different from the first polarization. A method of displaying images using a varifocal display device is also disclosed.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 25, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Mengfei Wang, Gang Li, Lu Lu, Yunqi Li
  • Patent number: 10663827
    Abstract: An object is to provide: a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The object is achieved by the transparent screen including: a dot array in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and a layer that is obtained by immobilizing a cholesteric liquid crystalline phase.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: May 26, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai
  • Patent number: 10481304
    Abstract: According to various embodiments, there is provided a lens sheet including an array of lenses arranged parallel to each other. Each lens includes a light redirecting portion having a light incident surface and a light reflecting surface, and includes a light refracting portion. The light reflecting surface is slanted relative to the light incident surface and relative to a plane interfacing the light redirecting portion and the light refracting portion, such that light of a first view image and light of a second view image transmitted through the light incident surface into the lens are directed to a first region and a second region of the light reflecting surface respectively and are reflected to the light refracting portion by the light reflecting surface. The first region is next to the second region.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Chandra Suwandi Wijaya, Jovia Jia Zhen Lee
  • Patent number: 10126475
    Abstract: The present invention relates to a polarized light emissive device comprising a plural of fluorescent semiconductor quantum rods, and to a preparation thereof. The invention further relates to a use of the polarized light emissive device in optical devices, and to an optical device comprising the polarized light emissive device.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: November 13, 2018
    Assignee: Merck Patent GmbH
    Inventor: Masaki Hasegawa
  • Patent number: 10063820
    Abstract: The invention pertains to a projection assembly comprising at least a first screen (14) and a second screen (10). The first screen (14) is at an angle with the second screen (10). The first screen (14) is adapted to reflect light projected onto it predominantly or exclusively in one or more angular ranges that do not intersect with the second screen (10). The invention also pertains to a method for projecting images with such a projection assembly, comprising projecting a first image with the first projector (16B) on the first screen (14), and projecting a second image with the second projector (16A) on the second screen (10).
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 28, 2018
    Assignee: BARCO N.V.
    Inventors: Tom Bert, Bart Maximus, Claude Daniel Tydtgat
  • Patent number: 10036884
    Abstract: A display including an electrowetting prism array is provided. The display includes: a light source, a 2-dimensional (2D) display for providing an image using light from the light source, a prism array in which a refractive power of one or more prisms of the prism array is adjustable in real time, and an optical element which increases a refraction of light transmitted therethrough. In the display, the optical element may be disposed in front of or behind the prism array. The optical element may be a convex lens, a Fresnel lens, a holographic optical element (HOE), a diffraction optical element (DOE), or a second electrowetting prism array. The convex lens may be a variable focus lens.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: July 31, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-hee Kim, Hoon Song, Jung-mok Bae, Kyu-hwan Choi, Yoon-sun Choi, Yong-joo Kwon
  • Patent number: 9977321
    Abstract: A three-dimensional screen structure is a three-dimensional screen structure on which image light projected from an image light source is incident. The three-dimensional screen structure includes particles and a bind unit. The particles are three-dimensionally disposed and capable of transmitting or reflecting the image light. The bind unit binds the particles.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 22, 2018
    Assignee: SONY CORPORATION
    Inventor: Tomomasa Mizuno
  • Patent number: 9927690
    Abstract: A projection screen, adapted to receive an image beam, includes a transparent substrate, optical pillar structures, a light-scattering layer, Fresnel structures and a light-absorption layer. The transparent substrate has first surface and second surface opposing to each other. The optical pillar structures are located at the first surface, and between the light-scattering layer and the transparent substrate. Each optical pillar structure is arranged along the first direction. The Fresnel structures are located at the second surface, and disposed between the transparent substrate and the light-absorption layer. Each Fresnel structure has a reflective surface and a transmissive surface connected to the reflective surface. The image beam sequentially passes through the light-scattering layer, the optical pillar structures, the transparent substrate and travels to the reflective surfaces, and the image beam is reflected by the reflective surfaces and outputs from the projection screen.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 27, 2018
    Assignee: Coretronic Corporation
    Inventors: Fang-Hsuan Su, Hung-Ta Chien, Fu-Chiang Hsu, Fu-Ming Chuang, Chi-Tang Hsieh
  • Patent number: 9726967
    Abstract: Display media configured to receive projected content are described herein. In some instances, a display medium may be a non-powered object that a user may hold and move in different ways through a room or other environment. The display medium may be formed to fit into the user's hand and include elements that provide information to accurately project an image onto the display medium or to perform other actions.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 8, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Beverly L. Harrison, Edward Dietz Crump, William Thomas Weatherford, Juli A. Satoh, Navid Poulad, Robert A. Yuan, Jon L. Lindskog, Christopher D. Coley
  • Patent number: 9563114
    Abstract: A screen includes: a diffraction member and a scattering member. The diffraction member selectively diffracts image light and orients this light towards a viewer. In order for the image light to be scattered to a higher degree than ambient light that enters the scattering member on the side opposite of the viewer, the degree to which the scattering member scatters polarized light varies according to the polarization direction of the light. Thus, regardless of the positional relationship of the screen and a projector, which projects image light, it is possible to use a relatively simple industrial manufacturing process that can ensure the following to a satisfactory extent: brightness of the screen in the front direction, a wide viewing angle, and visual clarity through the screen.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: February 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Naru Usukura, Hiromi Katoh, Takafumi Shimatani
  • Patent number: 9507985
    Abstract: An imaging scanner includes an illumination light source and a hybrid illumination lens. The hybrid illumination lens includes a first Fresnel surface facing the illumination light source and a second surface having a microlens array thereon. The first Fresnel surface is configured to direct light received from the illumination light source towards the second surface to generate illumination light towards a target object through the microlens array on the second surface.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: November 29, 2016
    Assignee: Symbol Technologies, LLC
    Inventor: Caihua Chen
  • Patent number: 9354500
    Abstract: A screen for displaying an image received from a projector includes an anisotropic base diffusion layer having a fine pattern; a lens layer formed on a rear surface of the anisotropic base diffusion layer; a reflection layer deposited on a rear surface of the lens layer; and a surface protection layer coupled with a front surface of the anisotropic base diffusion layer. The screen for a projector enables a viewer to view an image from a single focus projector inside a bright room, brightness to be uniformly distributed throughout the screen, and a desirable viewing angle to be obtained.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: May 31, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Sungtae Kim, Seunggyu Lee, Youngsung Kim
  • Patent number: 9291887
    Abstract: A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 22, 2016
    Assignee: PRYSM, INC.
    Inventor: Roger A. Hajjar
  • Patent number: 9217915
    Abstract: A projection-type video display apparatus comprising: a transmission-type screen; a video projection unit configured to project an image displayed on a video display surface as an image light; a projection optic system configured to enlarge and project the image light projected from said video projection unit on a rear surface of said transmission-type screen; and a plane mirror, provided in a part of said projection optic system, configured to reflect the image light from said video projection unit, thereby to project it on said transmission-type screen, wherein said transmission-type screen, said video projection unit and said projection optic system are mounted on a base; said video projection unit builds up an oblique projection optic system; and said transmission-type screen and said plane mirror are disposed on said base, being perpendicularly fixed, independently, in parallel with each other, and on the rear surface of said transmission-type screen is attached a foldable back cover, detachably, so as t
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: December 22, 2015
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Koji Hirata, Toshihiko Matsuzawa, Tadashi Sato
  • Patent number: 9030736
    Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tetsuya Sadahiro, Kazunobu Ogawa
  • Patent number: 8964292
    Abstract: An anisotropic projection screen accepts light projected at non-normal angles and redirects the light as high quality images along a viewing path that is near normal to the screen. This allows side projection of images in a manner that avoids the potential viewer obstruction of the projection path. The images may be projected onto the screen from any angle (e.g., sides, top, bottom, etc.) relative to the screen surface, and then redirected to the viewer who is viewing the screen essentially normal to the screen surface. The screen has arrays of passive elements that are oriented to collect and redirect light from one direction, while rejecting or absorbing light received from another direction.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: February 24, 2015
    Assignee: Rawles LLC
    Inventors: Eric Gifford Marason, William Thomas Weatherford
  • Publication number: 20150015785
    Abstract: A robotic mount is configured to move an entertainment element such as a video display, a video projector, a video projector screen or a staircase. The robotic mount is movable in multiple degrees of freedom, whereby the associated entertainment element is moveable in three-dimensional space. In one embodiment, a system of entertainment elements are made to move and operate in synchronicity with each other.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventor: Andrew Flessas
  • Patent number: 8922888
    Abstract: A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Yufeng Liu, David T. Yust
  • Patent number: 8902372
    Abstract: A display system includes a laser projector that projects light onto a the back of a screen, a sensor that detects light reflected from the back of the screen, a processor in communication with the sensor, the processor controlling light projected from the laser projector based on data regarding the light detected from the sensor. The laser projector, sensor, and processor are all contained within a single housing.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: December 2, 2014
    Assignee: Superlumenary
    Inventors: Robert Loney, Matthew Ward
  • Publication number: 20140313579
    Abstract: The present disclosure describes a front projection system. The front projection system includes a light absorbing layer having an absorbance in a visible range of the electromagnetic spectrum of at least 80% and a light diffusing layer disposed on the light absorbing layer between the light absorbing layer and the projector. The light diffusing layer includes a plurality of metal flakes uniformly distributed in a host material, an average size of the plurality of metal flakes being in a range from about 0.5 microns to about 20 microns, at concentration of in a range from about 3% to about 30% by weight. A plurality of light absorbing particles uniformly distributed in the host material at a concentration of less than about 7% by weight, and a major front surface facing the projector having an average surface roughness in a range from about 0.5 microns to about 10 microns.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 23, 2014
    Inventors: Richard Y. Liu, Francis V. Loncar, JR., David J. Koch
  • Patent number: 8837046
    Abstract: A projection screen includes a substrate having a projection area for a projection device to project an image onto the projection area. The projection area includes a plurality of arrayed optical regions, and each pixel of the image corresponding to the at least one optical region. Each of the optical regions includes a first optical sub-region and a second optical sub-region with different optical characteristics, such as reflective scattering, transmissive scattering, simple transmission or specular reflection. The above-mentioned projection screen with the optical characteristics of two or more, for example, can be at the same time as the front projection screen and the rear projection screen, or allows the user to watch background image behind the projection screen. A projection system including the above-mentioned projection screen is also disclosed.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: September 16, 2014
    Assignee: National Tsing Hua University
    Inventor: Cheng-Huan Chen
  • Patent number: 8807775
    Abstract: An array-type display apparatus includes display devices each including a display section and a non-display area located around the display section, and transparent plates disposed on the viewer side. Each transparent plate has: a light exit-side deflection portion, provided in a position corresponding to the non-display area, for allowing at least part of light from the display section to exit the transparent plate in the front direction of the display section; and corner deflection portions, provided at the corners of the viewer-side surface, for allowing at least part of light that has passed through the transparent plate to exit it in the front direction. The width of the light exit-side deflection portion is larger than the width of the non-display area.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: August 19, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroshi Sekiguchi, Masahiro Goto, Katsunori Takahashi
  • Patent number: 8780444
    Abstract: A screen in which observation distance may be adjusted while maintaining image brightness and a projection system using the screen. In a light control layer of a screen, a first angle region that determines a diffusion distribution of a reflected light is different according to the screen position in a control direction in which light diffusion control is performed. Accordingly, a diffusion distribution of image light emitted from a screen surface is adjusted to be tilted downward by an upper end and upward by a lower end according to the screen position. Thus, for example, a size of a diffused angle range is maintained to be 30°, and a direction in which the image light is diffusion-emitted corresponds to an assumed position of an observer. The projection image can be observed while maintaining brightness of an image and the observation distance L can be adjusted to be short.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 15, 2014
    Assignees: Seiko Epson Corporation, Tohoku University
    Inventors: Osamu Arakawa, Hiroyuki Shindo, Toshiaki Hashizume, Tatsuo Uchida, Yoshito Suzuki, Baku Katagiri
  • Publication number: 20140176910
    Abstract: An autostereoscopic projection screen including a projection area and a control, wherein the projection area includes micromirrors, wherein the control is adapted to adjust orientation of the micromirrors such that the micromirrors can reflect light emitted by an image source into directions creating an image in each direction at a viewing distance such that each image can only be seen by one eye of a viewer located in said direction at said viewing distance, and wherein two images are created at a first viewing distance and spaced apart such that a viewer in the first viewing distance can see one of the two images with a first eye only and the other of the two images with a second eye only, wherein the viewer has the impression of seeing the two images simultaneously. The invention further relates to a method and a system for autostereoscopic projection.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 26, 2014
    Inventors: Stefan Mahn, Christian Riedel, Wolfgang Fischer
  • Publication number: 20140139914
    Abstract: Provided is a front reflection screen for a front projection display apparatus. The front reflection screen includes a reflection layer configured to reflect an incident light including an image light projected from a projector and an external light, and a tint layer disposed before the reflection layer and including light absorbing particles to block a portion of the incident light.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jeong-ho NHO, Sung-tae KIM, Sang-hyun SOHN, Won-yong LEE, Yong-Dok CHA
  • Patent number: 8711475
    Abstract: A projection screen is provided, which includes a reflective layer having plural reflective patterns which are spaced apart from one another and each of which includes an image reflective surface having an inclination angle against a horizontal direction so as to guide an image light toward a front of the screen, and plural external light absorption layers absorbing external lights incident to the screen.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wook-jae Jeon, Sang-hyun Sohn, Jeong-ho Nho
  • Patent number: 8711476
    Abstract: A screen includes a polarization layer having plural acicular particles provided with their major axes oriented nearly in the same direction on a substrate, and has polarization selectivity of reflecting light in one polarization direction and absorbing light in the other polarization direction of two polarization directions orthogonal to each other on a plane perpendicular to incident light.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Noriko Kenmochi
  • Patent number: 8699015
    Abstract: A schematic eye is used for the evaluation of the optical system of an optical coherence tomography apparatus which captures a tomogram of the fundus. The eye includes a first optical member which irradiated light from the optical system strikes and a second optical member which irradiated light from the first optical member strikes. A plurality of layers having different scattering intensities in the incident direction of irradiated light are formed on the second optical member.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Saito, Shuichi Kobayashi, Mitsuro Sugita, Yasuyuki Numajiri
  • Publication number: 20140092471
    Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.
    Type: Application
    Filed: August 15, 2013
    Publication date: April 3, 2014
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Tetsuya SADAHIRO, Kazunobu OGAWA
  • Publication number: 20140085718
    Abstract: A projection screen includes a substrate having a projection area for a projection device to project an image onto the projection area. The projection area includes a plurality of arrayed optical regions, and each pixel of the image corresponding to the at least one optical region. Each of the optical regions includes a first optical sub-region and a second optical sub-region with different optical characteristics, such as reflective scattering, transmissive scattering, simple transmission or specular reflection. The above-mentioned projection screen with the optical characteristics of two or more, for example, can be at the same time as the front projection screen and the rear projection screen, or allows the user to watch background image behind the projection screen. A projection system including the above-mentioned projection screen is also disclosed.
    Type: Application
    Filed: November 21, 2012
    Publication date: March 27, 2014
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventor: Cheng-Huan CHEN
  • Publication number: 20140049820
    Abstract: A dual projection system includes a projector, a partially transparent white film, and a partially transparent black film. The still or motion image from the projector is projected directly on the partially transparent white film. The partially transparent black film is disposed behind the partially transparent white film with an gap. The partially transparent white film reflects and displays a first portion of the still or motion image thereon for a first observer inside. The partially transparent black film allows a second portion of the still or motion image transmitted through the partially transparent white film transmitted therethrough for a second observer outside.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Inventor: Jin Won KIM
  • Patent number: 8646917
    Abstract: An apparatus is provided for generating or creating an autostereoscopic or three-dimensional (3D) display. The apparatus has a foreground display assembly including a display element such as a transparent projection screen film and a projector projecting a first set of two-dimensional (2D) content onto a rear surface viewable by a viewer via a front surface. The apparatus includes a background display assembly including a display element displaying a second set of 2D content. The apparatus includes an intermediate display assembly including a display element, such as an optical shutter window, positioned between the foreground display element and the background display element. This assembly includes a projector projecting a third set of 2D content on the front or rear surface of the optical shutter window. The first, second, and third sets of 2D content are concurrently visible and the use of three spaced apart display planes creates a 3D illusion.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 11, 2014
    Assignee: Disney Enterprises, Inc.
    Inventors: Mark A. Reichow, Daniel M. Joseph
  • Patent number: 8628196
    Abstract: A display device and its display method are provided. The display method includes: first, inputting image message, then generating laser beams for forming an image according to the input image message to display an image. The image message includes angular message of each image pixels.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: January 14, 2014
    Assignee: Ocean of Peace Scientific Beijing Ltd.
    Inventors: Xuefeng Song, Jiangliang Li
  • Publication number: 20130335641
    Abstract: A projection screen includes: phosphor regions arranged cyclically in an in-plane direction of a display region; a plurality of black stripes and reference black stripes that partition the display region into the phosphor regions; and an optical information formation unit that is provided in a specific position within the display region and that generates readable optical information.
    Type: Application
    Filed: March 2, 2012
    Publication date: December 19, 2013
    Inventors: Kazuhiko Aoki, Masahiko Ohta, So Nishimura, Yoshiho Yanagita, Osamu Ishibashi, Fujio Okumura
  • Patent number: 8599483
    Abstract: A system for projecting content at an angle to a rear projection screen. The system includes a projector configured for projecting changeable electronic content and a rear projection screen for receiving the projected content at an angle and displaying the projected content. The rear projection screen includes a turning film having prisms facing toward or away from the projector. For prisms facing toward the projector, a protective film covers the turning film. When the projected content is displayed on the rear projection screen, the content has a substantially uniform appearance.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 3, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Brian T. Weber, Rolf W. Biernath, John C. Schultz, Gary T. Boyd
  • Patent number: 8591038
    Abstract: A projection type image display apparatus in one aspect of the present invention includes an optical engine that projects an image; an image display screen that displays an image of projection light projected from the optical engine; a folding mirror that reflects the projection light projected from the optical engine toward the image display screen; and an optical system support member that holds the optical engine, a rear side part of the folding mirror and the image display screen. The image display screen holds a front side part of the folding mirror by an upper side part of the image display screen.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Norichika Sugano
  • Patent number: 8573787
    Abstract: In a projection type display apparatus for enabling to display an image, by projecting an image on an image display element(s), enlargedly, upon a nearly horizontal surface, such as, a table, a reflection mirror for reflecting a light from a light source is so disposed that an optical axis of the light source is nearly perpendicular to an optical axis of a lens group having a plural number of lens elements, which are disposed symmetric with respect to the optical axis.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 5, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Koji Hirata, Masahiko Yatsu, Takanori Hisada
  • Patent number: 8570651
    Abstract: A screen having a front and rear surface arranged to be used with viewing both 2D and 3D images. The front and rear screen surfaces are formed differently from different materials, where the front surface is used as a 3D image screen and the rear surface is used as a screen having high resolution.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: October 29, 2013
    Inventor: Hae-Yong Choi
  • Patent number: RE45258
    Abstract: In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the image display panel. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the image display panel is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma