Stereoscopic Patents (Class 353/7)
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Patent number: 8810741Abstract: An aligning and assembling method of a stereoscopic display device is provided and includes providing a liquid crystal (LC) panel and a brightness detector. A lenticular panel is placed between the LC panel and the brightness detector. The LC panel is driven to output a light-dispersion pattern. The lenticular panel is rotated and the brightness detector obtains a plurality of brightness patterns and a plurality of light-dispersion periods generated from the light-dispersion pattern after the light-dispersion pattern has passed through the lenticular panel. The brightness patterns correspond respectively to the light-dispersion periods. A maximum light-dispersion period is found from the light-dispersion periods. The lenticular panel is stopped to rotate when the maximum light-dispersion period is found.Type: GrantFiled: April 2, 2012Date of Patent: August 19, 2014Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Jian-Da Liao, Chun-Ming Huang, Huan-Ting Lee
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Patent number: 8807810Abstract: Three-dimensional information is presented directly on the surface of a target three-dimensional object without using a display device such as a display monitor and an HUD. Spatially coded light patterns are projected from two projectors on a target object surface. The light projected from the two projectors are added up on the object surface to produce unified color and luminance. On the object surface, light is simply added up, so that a pattern whose color and brightness correspond to distance and height appears. Hence, a distance to an object or a three-dimensional shape of an object can be highlighted by the color and brightness presented on the object for perception by human beings.Type: GrantFiled: June 7, 2010Date of Patent: August 19, 2014Assignee: National University Corporation Nagoya Institute of TechnologyInventors: Jun Sato, Fumihiko Sakaue, Masahiko Inagaki
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Patent number: 8794764Abstract: Projection systems and methods for providing stereoscopic images viewed through passive polarizing eyewear. The systems relate to projectors that create left and right eye images simultaneously and often as side-by-side images on the image modulator. The systems act to superimpose the spatially separated images on a projection screen with alternate polarization states. The embodiments are best suited to liquid crystal polarization based projection systems and use advanced polarization control.Type: GrantFiled: March 25, 2013Date of Patent: August 5, 2014Assignee: RealD Inc.Inventors: Miller H. Schuck, Michael G. Robinson, Douglas J. McKnight, Gary D. Sharp
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Patent number: 8780285Abstract: An apparatus for viewing stereoscopic images may include, but is not limited to: a first viewing lens including a first polarization layer; a second viewing lens including a second polarization layer; and one or more birefringence compensation layers. Further, the apparatus may be viewing glasses including a frame wearable by a user.Type: GrantFiled: September 25, 2009Date of Patent: July 15, 2014Assignee: Rockwell Collins, Inc.Inventors: Albert N. Stuppi, Bruce D. Hufnagel, Craig E. Harwood
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Publication number: 20140192328Abstract: An illumination system for a stereoscopic projection device is provided. The illumination system comprises a luminous element and a color wheel module. The luminous element is adapted to generate a plurality of first wave band lights when the color wheel module has a plurality of wave band transmitting transforming areas and a plurality of wave band reflecting transforming areas. When the first wave band lights are projected to the wave band transmitting transforming areas, the first wave band lights are adapted to transmit the wave band transmitting transforming areas to excite a plurality of first selected wave band lights. When the first wave band lights are projected to the wave band reflecting transforming areas, the wave band reflecting transforming areas are adapted to excite and reflect a plurality of second selected wave band lights.Type: ApplicationFiled: January 9, 2014Publication date: July 10, 2014Applicant: DELTA ELECTRONICS, INC.Inventor: Shengwei LIN
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Patent number: 8773036Abstract: A projector that outputs a first picture and a second picture alternately, wherein a control section performs first control and second control, controls a discharge lamp driving section. In the first control and the second control, the absolute value of a drive current is relatively small in a first period and relatively large in a second period. In the first control, the energy provided to a first electrode in the second period is greater than the energy provided to the second electrode in the second period. In the second control, the energy provided to the second electrode in the second period is greater than the energy provided to the first electrode in the second period.Type: GrantFiled: November 29, 2011Date of Patent: July 8, 2014Assignee: Seiko Epson CorporationInventor: Tetsuo Terashima
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Publication number: 20140184932Abstract: A virtual image displaying system is disclosed and includes: a projector, an optical relaying device, a reflective mirror and a slit array. The projector has a main body and a projection lens connecting to the main body. The main body outputs a light beam by the projection lens. The optical relaying device faces the projection lens and is disposed under the projection lens. The reflective mirror is inclined relative to and disposed above the optical relaying device. The slit array is inclined relative to and disposed in front of the reflective mirror. The projection lens is further disposed between the reflective mirror and the slit array. Therefore, the virtual image displaying system has a compact configuration of components.Type: ApplicationFiled: April 9, 2013Publication date: July 3, 2014Applicant: DELTA ELECTRONICS, INC.Inventor: Junejei HUANG
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Publication number: 20140185015Abstract: A stereo display system including a plurality of projection apparatuses and a screen module is provided. The projection apparatuses project a plurality of image beams. The screen module is disposed in front of the projection apparatuses, wherein the image beams are transmitted toward the screen module. The screen module includes a light diffusion layer and a beam splitting layer. The light diffusion layer has at least one diffusion direction, and the light diffusion layer diffuses the image beams with a diffusion angle. The light diffusion layer is disposed between the beam splitting layer and the projection apparatuses, wherein each of the image beams is divided into a plurality of sub image beams by the beam splitting layer. The sub image beams of each image beam transmit with different angles, such that the image beams form a plurality of stereo image viewing zones after passing through the screen module.Type: ApplicationFiled: May 29, 2013Publication date: July 3, 2014Inventors: Chang-Ying Chen, Chao-Hsu Tsai, Chang-Shuo Wu
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Publication number: 20140185014Abstract: A light source system for stereoscopic image is disclosed, which includes a first multiband filter, a second multiband filter, a first relay lens assembly, a second relay lens assembly, a light source module, a light outputting portion and a light valve device. The first and the second relay lens assemblies are disposed between the first multiband filter and the second multiband filter. The light source module and the first multiband filter are together disposed at one side of the first relay lens assembly. The light outputting portion and the second multiband filter are together disposed at one side of the second relay lens assembly. The light valve device is disposed between the first and the second relay lens assemblies. Therefore, the light source system configures the light path by controlling the light valve device and produces beams with different bands.Type: ApplicationFiled: April 3, 2013Publication date: July 3, 2014Applicant: Delta Electronics, Inc.Inventor: Junejei HUANG
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Patent number: 8764196Abstract: Orientation, convergence, and brightness balance corrections for a stereoscopic projection system are achieved by employing a novel test pattern in a low-cost alignment method to allow accurate, rapid alignment of the illuminator, film, and stereoscopic lens. The method and test pattern are also applicable for aligning a dual projector system, in which two projectors are used for projecting right- and left-eye images, respectively.Type: GrantFiled: September 17, 2010Date of Patent: July 1, 2014Assignee: Thomson LicensingInventor: William Gibbens Redmann
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Patent number: 8766551Abstract: A projector that outputs a first image and a second image alternately while performing switching between the first image and the second image, includes: a discharge lamp driving section that supplies, to a discharge lamp, a drive current that drives the discharge lamp; a state detecting section that detects a deteriorating state of the discharge lamp; and a control section that controls the discharge lamp driving section, wherein the control section controls the discharge lamp driving section so that the absolute value of the drive current becomes relatively small in a first period and relatively large in a second period and controls the discharge lamp driving section so that the ratio of the absolute value of the drive current in the second period to the absolute value of the drive current in the first period is increased with the progress of the deteriorating state.Type: GrantFiled: December 12, 2011Date of Patent: July 1, 2014Assignee: Seiko Epson CorporationInventors: Tetsuo Terashima, Shun Sato
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Publication number: 20140176910Abstract: 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: ApplicationFiled: December 9, 2013Publication date: June 26, 2014Inventors: Stefan Mahn, Christian Riedel, Wolfgang Fischer
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Patent number: 8757806Abstract: Proposed are various embodiments of projection systems that generally provide stereoscopic images. The projection systems act to split a spatially separated image in a stereoscopic image frame and superimpose the left- and right-eye images on a projection screen with orthogonal polarization states. The embodiments are generally well suited to liquid crystal polarization based projection systems and may use advanced polarization control.Type: GrantFiled: April 22, 2013Date of Patent: June 24, 2014Assignee: RealD Inc.Inventors: Miller H. Schuck, Michael G. Robinson, Douglas J. McKnight, Gary D. Sharp
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Patent number: 8746887Abstract: A stereoscopic image projection system including: a beam projector for projecting a left eye image and a right eye image in a side by side format; a stereoscopic image adaptor for alternately projecting the left eye image and the right eye image onto a screen in a time sequence; and a shutter controller for synchronizing a time sequential operation of the stereoscopic image adaptor and opening and closing of right and left shutters of a user shutter glasses.Type: GrantFiled: July 23, 2010Date of Patent: June 10, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim, Kyung-hoon Cha, Jae-phil Koo
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Patent number: 8749621Abstract: A three-dimensional (3D) display device creating 3D illusions or effects within a contained space or volume. The device includes a front sidewall providing a viewing window to an interior of the display device. The device includes a transparent rear projection screen with a front surface facing the viewing window that is spaced apart a distance from the front sidewall. A media source projects a two dimensional (2D) image onto a back surface of the projection screen in a direction that is oblique to the front sidewall. The projection screen is positioned such that the front surface is angled away from the front sidewall, whereby the front surface is oblique to the viewing window. A leading edge of the projection screen is proximate to the front sidewall and a trailing edge of the projection screen is distal to the front sidewall with the front surface angled away from the front sidewall.Type: GrantFiled: October 22, 2010Date of Patent: June 10, 2014Assignee: Disney Enterprises, Inc.Inventors: Daniel M. Joseph, Mark A. Reichow
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Patent number: 8746888Abstract: A stereoscopic digital projection system for projecting a stereoscopic image including a left-eye image and a right-eye image, comprising: first and second light sources providing corresponding first and second light beams having spectrally-adjacent, substantially non-overlapping spectral bands falling within a single component color spectrum; a spatial light modulator having an array of pixels that can be modulated according to image data to provide imaging light; illumination optics arranged to receive the first and second light beams and provide substantially uniform first and second bands of light; beam scanning optics arranged to cyclically scroll the first and second bands of light across the spatial light modulator; a controller system that synchronously modulates the spatial light modulator pixels according to image data for the stereoscopic image; projection optics for delivering the imaging light from the to a display surface; and filter glasses for a viewer.Type: GrantFiled: October 3, 2011Date of Patent: June 10, 2014Assignee: Eastman Kodak CompanyInventor: Barry David Silverstein
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Patent number: 8746889Abstract: An autostereoscopic display configured to display a three dimensional (3D) image of a scene. The autostereoscopic display uses a single projector to project a plurality of projected images into a mirror arrangement fixedly positioned in the projection field of the single projector to reflect the plurality of projected images onto the holographic diffuser from distinct directions such that a 3D image is perceived by a person viewing the holographic diffuser.Type: GrantFiled: October 27, 2011Date of Patent: June 10, 2014Assignee: Delphi Technologies, Inc.Inventors: Daniel Leong, Frederick F. Kuhlman
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Patent number: 8740387Abstract: An autostereoscopic display apparatus is provided and includes a first lenticular lens array, a second lenticular lens array, an optical diffuser layer, an image projector module and a switch unit. The optical diffuser layer is disposed between the first lenticular lens array and the second lenticular lens array. Multiple image beams generated by the image projector module are projected to a plurality of observing regions on an observing plane through the first lenticular lens array, the optical diffuser layer and the second lenticular lens array. The switch unit rotates the second lenticular lens array in accordance with the autostereoscopic display apparatus operates situated at a three-dimensional (3D) display mode or a two-dimensional (2D) display mode.Type: GrantFiled: April 23, 2012Date of Patent: June 3, 2014Assignee: Delta Electronics, Inc.Inventor: June-Jei Huang
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Patent number: 8730306Abstract: Methods and systems are described herein which produce polarization-independent full color images suitable for rear-projection television sets and other multimedia displays. The system uses illumination with R, G, B light from two different light sources for each color. A viewer wears glasses with narrowband optical filters, preferably holographic filters. The R, G, B light from the light sources is slightly offset at each of the 3 emission wavelengths, with one set of R, G, B light being filtered by the holographic filter in front of the left eye of the, and the other set of R, G, B light being filtered by the holographic filter in front of the viewer's right eye.Type: GrantFiled: April 24, 2007Date of Patent: May 20, 2014Assignee: Corporation for Laser Optics ResearchInventor: Masayuki Karakawa
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Publication number: 20140132851Abstract: 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: ApplicationFiled: January 23, 2014Publication date: May 15, 2014Applicant: Parellel Consulting Limited Liability CompanyInventors: Oliver Cossairt, Gregg E. Favalora
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Patent number: 8721091Abstract: An optical system having a plane anisotropic retroreflector portion which specularly reflects radiation components in a first plane of incidence, but retroreflects radiation components in a second plane of incidence, a first imaging portion which produces on the retroreflector portion a line-shaped intermediate image of an object point in an object plane in a specified position relative to the system, the image extending along a line in the second plane of incidence, and a second imaging portion by means of which the line-shaped intermediate image is imaged into an image point.Type: GrantFiled: June 17, 2010Date of Patent: May 13, 2014Assignee: Giesecke & Devrient GmbHInventor: Bernd Wunderer
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Patent number: 8721083Abstract: A stereoscopic projection system includes an optical engine, a relay lens group, a polarization conversion system and two identical projection lenses. The optical engine is used for outputting a non-polarized image light. The non-polarized image light is imaged into the polarization conversion system through the relay lens group to produce an intermediate image. The polarization conversion system includes a polarization beam splitter, a polarization rotating element and a polarization switch. The polarization beam splitter is used for splitting the non-polarized image light into a first-state first polarized beam and a second-state second polarized beam, which have the same total optical length. By the polarization switch, the first output polarized beam and the second output polarized beam are alternately switched between the first state and the second state. The projection lenses are located in the first optical path and the second optical path for projecting the intermediate image.Type: GrantFiled: July 26, 2011Date of Patent: May 13, 2014Assignee: Delta Electronics, Inc.Inventor: June-Jei Huang
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Patent number: 8708497Abstract: A three dimensional measurement apparatus includes a projection unit that projects, to a measurement target object, a first pattern light including alternately arranged bright parts and dark parts and a second pattern light in which a phase of the first pattern light is shifted, and an imaging unit that images the measurement target object on which the first or second pattern light is projected. When a period of repetitions of the bright parts and the dark parts of the pattern light is one period, a range of imaging on the measurement target object by one pixel included in the imaging unit is an image distance, and the length of one period of the projected pattern light on the measurement target object surface is M times the image distance, the projection unit and the imaging unit are arranged to satisfy “2×N?0.2?M?2×N+0.2 (where N is not less than 2)”.Type: GrantFiled: December 8, 2011Date of Patent: April 29, 2014Assignee: Canon Kabushiki KaishaInventor: Motomi Tsuyuki
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Patent number: 8702245Abstract: An LED projection light device includes an image forming assembly including a display and a projection assembly for generating and projecting three-dimensional images. The image forming and/or projection assembly may include a lenticular lens, slanted lenticular lens, switchable lenticular film, lenticular screen, parallax barrier The display may be controlled by a volumetric, multiplexed-2D to 3D, or parallax barrier technique, a single image splitter, a double image splitter, a spatial-multiplexer, time division multiplexer, or a tracking-based technique, and may include a 2D/3D switchable display, multiplanar display, ferroelectric LC display, cholestreric LC display, bi-stable nematic LC display, electrochromic films, OLED screen, OEL screen, reflective MEMS display, microcup electrophoretic display, or E-Ink display technical.Type: GrantFiled: February 4, 2011Date of Patent: April 22, 2014Inventor: Tseng-Lu Chien
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Publication number: 20140104577Abstract: Provided is a display apparatus including: a first display unit including a first screen on which a first image is imaged and that is capable of displaying the first image in a first direction and a first optical member capable of reflecting and displaying the first image in at least one second direction crossing the first direction; a second display unit that includes a second screen on which a second image is imaged and that is capable of displaying the second image in the second direction; and a light source configured to project first image light forming the first image onto the first screen and project second image light forming the second image onto the second screen.Type: ApplicationFiled: October 4, 2013Publication date: April 17, 2014Applicant: Sony CorporationInventor: Kazumasa Kaneda
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Patent number: 8696129Abstract: A method and system are disclosed for producing a color-corrected stereoscopic film for three-dimensional (3D) projection. Based on color measurements performed with different optical configurations of a projection system, at least one dye density adjustment can be determined for reducing discoloration in projected stereoscopic images that arises from one or more optical components in the projection system.Type: GrantFiled: July 8, 2010Date of Patent: April 15, 2014Assignee: Thomson LicensingInventors: Joshua Pines, William Gibbens Redmann, Mark J Huber
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Patent number: 8696133Abstract: A projection optical system (6) comprises a relay optical system (61), a PBS prism (71), and two projection lenses (81). The image light beam from a DMD (5) enters the PBS prism (71) via the relay optical system (61), is polarization-split there, and is directed to a screen by means of the two projection lenses (81). Displaying an image by means of the DMD (5) is controlled while the polarized states of the light beams produced by the polarization split by means of the PBS prism (71) are controlled. Thereby, a three-dimensionally viewable image and a high-resolution image created by pixel-offset can be projected. Since the relay optical system (61) is provided, the lens backs of the projection lenses (81) can be shortened, and the projection lenses (81) and further the projection optical system (6) can be made compact.Type: GrantFiled: September 11, 2009Date of Patent: April 15, 2014Assignee: Konica Minolta Opto, Inc.Inventors: Masayuki Imaoka, Kohtaro Hayashi, Jun Ishihara, Yasumasa Sawai
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Patent number: 8690334Abstract: A projector includes an image projection unit that projects an image for left eye and an image for right eye, and a transmitting unit that transmits a synchronizing signal for synchronization with switching between the image for left eye and the image for right eye. The transmitting unit is arranged to adjust a transmission direction of the synchronizing signal.Type: GrantFiled: December 13, 2011Date of Patent: April 8, 2014Assignee: Seiko Epson CorporationInventor: Makoto Eguchi
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Patent number: 8690335Abstract: A transmitter that outputs an image signal for displaying a first image and outputs an image signal of a synthesized image made of the reversal image of the first image and a second image. A display apparatus, based on the image signals output from the transmitter, displays the first image and the synthesized image with circular polarizations having different senses of rotation from each other. A receiver includes a circular polarization selecting and transmitting means that separates the first image and the synthesized image displayed on the display apparatus, based on the sense of rotation of the circular polarization, and selectively allows the images to pass therethrough, so as to be able to photograph the first image displayed on the display apparatus.Type: GrantFiled: October 28, 2009Date of Patent: April 8, 2014Assignee: NEC CorporationInventors: Fujio Okumura, Masao Imai
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Patent number: 8687133Abstract: A stereoscopic display device includes a display panel, two different polarized backlights and a synchronization module. The display panel is used to alternately generate first visible images and second visible images. The two different polarized backlights are to alternately illuminate the display panel so as to output the first visible images and second visible images, respectively. The synchronization module is used to synchronize the first visible images and second visible images with illumination periods of the respective polarized backlights.Type: GrantFiled: August 16, 2011Date of Patent: April 1, 2014Inventor: Edzer Lienson Wu
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Patent number: 8684531Abstract: An image signal storing unit stores an image signal provided from the outside. An image processing unit appropriately processes the image signal stored in the image signal storing unit in accordance with the instruction from an adjusting unit. A projecting unit projects, onto a display area, light corresponding to an image created by the image processing unit. A display size determination unit computes the display size of the picture plane displayed on a screen based on an image captured by the camera provided adjacent to the projection-type video-image display device. The display size determination unit then determines whether or not the display size of the picture plane is equal to or larger than a predetermined upper-limit size.Type: GrantFiled: December 28, 2010Date of Patent: April 1, 2014Assignee: Vision3D Technologies, LLCInventors: Ken Mashitani, Masutaka Inoue, Hideyuki Kanayama, Takashi Ikeda, Takahisa Ando, Kazuhiro Arai, Ryuhei Amano
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Patent number: 8687049Abstract: A display device includes a display panel for displaying a plurality of images, a viewing-zone generator for producing a plurality of viewing zones corresponding to the plurality of images and a first reflector at a first side of the display panel for reflecting a first image of the plurality of images to one of the plurality of viewing zones that corresponds to a second image of the plurality of images.Type: GrantFiled: December 21, 2006Date of Patent: April 1, 2014Assignee: LG Display Co., Ltd.Inventor: Hyung-Ki Hong
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Publication number: 20140085436Abstract: Systems and methods for convergent 3D displays. In one embodiment, the 3D display has a display screen that includes a convergent reflector and a horizontally narrow angle diffuser. The convergent reflector focuses 2D images projected on the diffuser from an array of 2D image projectors to form viewpoints in an eyebox where one viewpoint corresponds to one projector. At a particular viewpoint, the viewer's eye sees a full-screen field of view from a corresponding projector in the array. The narrow angle diffuser diffuses incident rays projected from the 2D image projectors into narrow angular slices so that the views in the eyebox are continuously blended together. The system and methods provide advantages in that only a few projectors are required in the array to provide the viewer with a full-screen field of view and a sufficiently large eyebox for comfortable viewing.Type: ApplicationFiled: September 20, 2013Publication date: March 27, 2014Applicant: Third Dimension IP LLCInventors: David L. Page, Clarence E. Thomas, JR.
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Patent number: 8681174Abstract: Provided are a high density multi-view image display system and method based on active sub-pixel rendering. The image display system may perform a rendering with respect to a viewpoint image in a pixel unit, using a viewpoint varying based on a position of left/right eyes of a user.Type: GrantFiled: November 4, 2010Date of Patent: March 25, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Kyung Nam, Du-Sik Park, Gee Young Sung, Chang Yeong Kim, Yun-Tae Kim, Ju Yong Park
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Publication number: 20140078471Abstract: It is proposed a method for the projection of a sequence of images onto a projection surface by a handheld device having an embedded projector, said method comprising, for an input image to be projected of said sequence of images: a step of evaluation wherein a spatial position variation is evaluated with respect to a reference spatial position of said handheld device; and said spatial position variation is defined by a spatial orientation variation and a spatial vector variation; said spatial vector variation being determined by 3 independent coordinates; and at least one of said 3 independent coordinates is provided by a stereoscopic sensor; a step of compensation wherein a compensated image is generated from said input image to be projected depending on said spatial position variation; and a step of projecting onto said projection surface said compensated image.Type: ApplicationFiled: September 13, 2013Publication date: March 20, 2014Applicant: STMicroelectronics N.V.Inventors: Laurent CUISENIER, Frederique ROFFET
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Patent number: 8672483Abstract: A method for adjusting color, suitable for a three dimension (3D) projector, is provided. In the present invention, a plurality of segment ranges of a color wheel is covered one by one, and it is measured a color temperature corresponding to the color wheel after each of the segment ranges is covered. Then, each of the color temperatures is compared with a standard color temperature for choosing one of the color temperatures closest to the standard color temperature. And the segment range corresponding to the color temperatures closest to the standard color temperature is regarded as a correctional covering segment.Type: GrantFiled: September 25, 2011Date of Patent: March 18, 2014Assignee: Acer IncorporatedInventors: Chen-Kang Su, Hsin-Yu Chen
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Publication number: 20140071352Abstract: A system and a method for time-multiplexed autostereoscopic display are disclosed, wherein the system includes a projector, an optical relaying device and a slit array. The projector can project a plurality of rays of different directions in different time sequences respectively. The optical relaying device is optically coupled with the projector for relaying the rays. The slit array is optically coupled with the optical relaying device for being illuminated by the rays. The slit array further has a plurality of regions which are illuminated by the rays respectively; and each of the regions has a plurality of slits which are turned on sequentially for a part of the rays to pass therethrough. Therefore, the display system can reduce the light loss of the rays each time when a 3D virtual image is formed.Type: ApplicationFiled: December 18, 2012Publication date: March 13, 2014Applicant: DELTA ELECTRONICS, INC.Inventor: Junejei HUANG
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Publication number: 20140071402Abstract: A projector includes a light source that emits light containing first wavelength light and second wavelength light of which light intensity is lower than that of the first wavelength light when the light source is driven at predetermined electric power, a light separation unit that separates the light from the light source into the first and the second wavelength light, an image formation unit that modulates the first wavelength light in accordance with a first image and modulates the second wavelength light in accordance with a second image, a control unit that supplies the light source with first electric power when the first image is formed, whereas supplying the light source with second electric power that is higher than the first electric power when the second image is formed, and a projection unit that projects the first image and the second image.Type: ApplicationFiled: August 22, 2013Publication date: March 13, 2014Applicant: SEIKO EPSON CORPORATIONInventor: Takashi ENDO
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Patent number: 8665518Abstract: A display method and system are described for displaying a stereo image comprising a first image and a second image. A light valve array comprising an array of light valve elements is driven according to an image and a light source is provided for generating a shaped light beam which can illuminate a portion of the light valve array. A scanning device is provided which is arranged to scan the shaped light beam across the light valve array. Light valve elements of the same light valve array are caused to sequentially adopt a state representative of the first image of the stereoscopic image and a state representative of the second image, and to cause the light valve elements to adopt a new state representative of one of the first and second images in advance of the scanning by the shaped light beam and to change to a new state representative of the other of the first and second images during a period between successive scans of the shaped light beam.Type: GrantFiled: January 12, 2010Date of Patent: March 4, 2014Assignee: Barco N.V.Inventors: Bart Maximus, Gino Priem
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Publication number: 20140055752Abstract: A projector adapted to switch between a right-eye image and a left-eye image at predetermined timings to output the right-eye image and the left-eye image alternately, includes: a discharge lamp; a discharge lamp drive section adapted to supply the discharge lamp with a drive current for driving the discharge lamp; and a control section adapted to control the discharge lamp drive section, wherein a period between the switching timings temporally adjacent to each other starts with a first period and ends with a second period, and the control section performs a second period alternating-current control process for controlling the discharge lamp drive section so that an absolute value of the drive current becomes relatively small in the first period, and becomes relatively large in the second period, and an alternating current is supplied to the discharge lamp as the drive current in the second period.Type: ApplicationFiled: October 29, 2013Publication date: February 27, 2014Applicant: SEIKO EPSON CORPORATIONInventors: Tetsuo TERASHIMA, Takeshi TAKEZAWA
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Publication number: 20140055751Abstract: A display includes a light source, a first color wheel, a second color wheel, an actuator, a controller, and a light modulator. The light source is for providing a light beam. The first color wheel includes plural primary-color filtering areas, and the second color wheel includes plural left or right eye filtering areas. The actuator rotates the first color wheel and the second color wheel. The controller is for controlling the rotations of the first color wheel and the second color wheel, such that the light beam passing through the first color wheel and the second color wheel is filtered to plural left or right eye primary-color light beams with different spectra. The light modulator is for modulating the left or right primary-color light beams and projecting the modulated left or right primary-color light beams onto a screen to display an image.Type: ApplicationFiled: January 2, 2013Publication date: February 27, 2014Applicant: DELTA ELECTRONICS, INC.Inventors: Yeong-Feng WANG, Meng-Han LIU
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Patent number: 8658988Abstract: A three-dimensional image projector, including a transparent display medium within which fluorescent substances are dispersed, the fluorescent substances being dispersed for performing the fluorescent light-emission of visible light by the irradiation with a laser beam of invisible light, a first-laser-beam scanning unit for scanning the inside of the transparent display medium by deflecting a first laser beam, the first laser beam being used for exciting the fluorescent substances, and a second-laser-beam scanning unit for scanning the inside of the transparent display medium by deflecting a second laser beam, the second laser beam being used for exciting the fluorescent substances, wherein a stereoscopic image is formed at a scanning intersection point of the first laser beam and the second laser beam inside the transparent display medium.Type: GrantFiled: April 26, 2013Date of Patent: February 25, 2014Assignee: Hitachi Consumer Electronics Co., Inc.Inventor: Keiichi Betsui
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Publication number: 20140049754Abstract: A method for providing a feedback circuit for a three dimensional projector. First and second input devices and a sensor for determining the rotational speed of the second input device are provided. A control device for controlling the rotational speed of the second input device and a phase locked loop (PLL) are provided. A phase reference signal is created based on the signal rate of the first input device. A phase signal is created based on the rotational speed of the second input device. The PLL compares the phase reference signal and the phase feedback signal to determine whether the first input device and the second input device are synchronized. A signal is sent to the control device for the second input device to change the rotational speed of the second input device in response to determining that the first input device and the second input device are not synchronized.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicant: International Business Machines CorporationInventor: Casimer M. DeCusatis
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Patent number: 8651663Abstract: A color stereoscopic digital projection system having a plurality of color channels for projecting a color stereoscopic image, comprising: left-eye and right-eye image forming systems, each including a light sources for each color channel; a spatial light modulator, illumination optics arranged to receive the light beams and provide corresponding substantially uniform bands of light, beam scanning optics arranged to cyclically scroll the bands of light across the spatial light modulator, and a controller system that synchronously modulates the pixels of the spatial light modulator according to image data. The right-eye and left-eye light sources have corresponding spectrally-adjacent, substantially non-overlapping spectral bands falling within the same component color spectrum.Type: GrantFiled: October 3, 2011Date of Patent: February 18, 2014Assignee: Eastman Kodak CompanyInventor: Barry David Silverstein
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Patent number: 8648773Abstract: A light ray controller has a circular frustum shape and is fitted in a circular hole of a top board such that its large diameter bottom opening faces upward. The light ray controller transmits a light ray while diffusing the light ray in a ridgeline direction and transmits the light ray straightforward without diffusing the light ray in a circumferential direction. A rotation module is provided under the table. One or more scanning projectors are provided on a circumference around an axis of the light ray controller on the rotation base of the rotation module. One or more scanning projectors are rotated by the rotation module. The controller controls one or more scanning projectors being rotated based on three-dimensional shape data stored in a storage.Type: GrantFiled: August 25, 2010Date of Patent: February 11, 2014Assignee: National Institute of Information and Communications TechnologyInventors: Shunsuke Yoshida, Sumio Yano, Hiroshi Ando
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Patent number: 8646917Abstract: 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: GrantFiled: January 20, 2011Date of Patent: February 11, 2014Assignee: Disney Enterprises, Inc.Inventors: Mark A. Reichow, Daniel M. Joseph
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Patent number: 8641198Abstract: Herein featured is a Night Light which can be held by a user that displays three dimensional projected images. The Night Light also equipped with an additional 3-D lens attachment allows the user added viewing fun of the projected images. The all light calm mode feature allows the user to illuminate the Night Light in the event that a user needs illumination quickly or as a stand alone Night Light.Type: GrantFiled: June 7, 2011Date of Patent: February 4, 2014Inventor: Marcos T. Feliciano
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Patent number: 8633972Abstract: A method for displaying image information on an autostereoscopic screen that is suitable for simultaneous display of a plurality of views visible respectively from at least one of a plurality of laterally offset viewing zones. A first stereoscopic half-image and a second stereoscopic half-image, which are perceptible simultaneously and together produce a stereoimage, are reproduced on the screen such that the first stereoscopic half-image is visible from two laterally offset and respectively continuous regions, while the second stereoscopic half-image is visible from a stereozone which is situated between the two mentioned regions and is smaller than each of these two regions.Type: GrantFiled: March 1, 2011Date of Patent: January 21, 2014Assignee: Fraunhofer-Geselschaft zur Foerderung der angewandten Forschung e.V.Inventors: René de la Barré, Silvio Jurk
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Patent number: 8633477Abstract: Disclosed herein is an organic light-emitting diode three-dimensional image display device which comprises a first substrate, a cathode formed on the first substrate, an electron injection layer formed on the cathode, an electron transfer layer formed on the electron injection layer, an emission layer formed on the electron transfer layer, a hole transfer layer formed on the emission layer, a hole injection layer formed on the hole transfer layer, an anode formed on the hole injection layer, a wire grid polarizer formed on the anode and composed of a metal thin film pattern formed at a first angle and a method thin film pattern formed at a second angle perpendicular to the first angle, which are alternately arranged, and a second substrate arranged on the wire grid polarizer.Type: GrantFiled: July 15, 2009Date of Patent: January 21, 2014Assignee: Pavoninekorea Inc.Inventors: Sung-Jung Lee, Min-Jung Kim, Kyo-Hyeon Lee
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Patent number: 8632189Abstract: Multiple source high performance stereographic projection systems are described. One projection system described comprises a first projection channel, a first light source capable of providing light for the first projection channel, and a second light source capable of providing light for the first projection channel, wherein when the projection system is in a first presentation mode the first and second light sources are on, and wherein when the projection system is in a second presentation mode the first light source is on and the second light source is at a reduced power.Type: GrantFiled: May 5, 2005Date of Patent: January 21, 2014Assignee: IMAX CorporationInventors: Steven Charles Read, Matthew Arnold O'Dor