Projector Including Liquid Crystal Cell (s) Patents (Class 349/5)
  • Patent number: 10726751
    Abstract: A table-top volumetric display apparatus for presenting three-dimensional imagery.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 28, 2020
    Assignee: Lightspace Technologies, SIA
    Inventors: Ilmārs Osmanis, Kri{hacek over (s)}s Osmanis, Mārtiņ{hacek over (s)} Narels, Uģis Gertners, Roberts Zabels, Armands {hacek over (S)}maukstelis, Ainārs Ozols
  • Patent number: 10712650
    Abstract: A screen that diffuses and reflects image light projected by a projector, includes an uneven half mirror structure body which includes a first transparent substrate and a semitransparent reflective layer, and a second transparent substrate bonded to the uneven half mirror structure body on the surface of the uneven shape with a transparent material. The first transparent substrate has an uneven shape on one surface of the first transparent substrate. The semitransparent reflective layer is provided on the surface of the uneven shape and configured to reflect a part of light and transmit the remaining light. One of the first transparent substrate and the second transparent substrate disposed closer to a projection side than the semitransparent reflective layer is made of a material exhibiting birefringence of less than or equal to 500 nm.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: July 14, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Hiroshi Yamaguchi
  • Patent number: 10714539
    Abstract: An organic light-emitting display device with improved light efficiency includes a plurality of pixel electrodes each corresponding one of at least a first, second, or third pixel; a pixel-defining layer covering an edge and exposing a central portion of the pixel electrodes; an intermediate layer over the pixel electrode and including an emission layer; an opposite electrode over the intermediate layer; and a lens layer over the opposite electrode and including a plurality of condensing lenses each having a circular lower surface. An area of the portion of the pixel electrode exposed by the pixel-defining layer is A, and an area of the lower surface of the condensing lens is B. For the first pixel, a ratio B/A ranges from about 1.34 to about 2.63. For the second pixel, B/A ranges from about 1.43 to about 3.00, For the third pixel, B/A ranges from about 1.30 to about 2.43.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungkook Park, Minwoo Kim, Woongsik Kim
  • Patent number: 10698147
    Abstract: A polarizing element includes: a transparent substrate; and grid-shaped convexities that are arranged on the transparent substrate at a smaller pitch than a wavelength of operating band light and that extend in a specific direction. The grid-shaped convexities include a reflection layer formed on the transparent substrate and grid tips formed with side surfaces that, when viewed in the specific direction, are inclined in a direction of tip tapering.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 30, 2020
    Assignee: Dexerials Corporation
    Inventor: Tomu Takeda
  • Patent number: 10697580
    Abstract: An electronic device including a display body, a fixed back cover, at least one movable assembly and at least one supplemented light source is provided. The fixed back cover is disposed on the display body. The moveable assembly is disposed on the display body and located beside the fixed back cover. The supplemented light source is disposed on the movable assembly and located between the movable assembly and the display body. When the movable assembly is moved or rotated from an accommodating position to an operation position, the supplemented light source moves along with the movable assembly from being hidden between the display body and the movable assembly to out of the display body so as to locate beside the display body.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: June 30, 2020
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Pai-Feng Chen, Yuan-Ping Chu, Jyh-Chyang Tzou, Cheng-Shiue Jan, Chia-Chi Lin, Wei-Hao Lan
  • Patent number: 10665767
    Abstract: A light source device includes a light source bank that accommodates a plurality of semiconductor light-emitting elements, and a light source bank holder that mounts the light source bank on a first surface and includes a cooling mechanism provided on a second surface that is a back surface of the first surface.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 26, 2020
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Yusuke Tani
  • Patent number: 10616539
    Abstract: Apparatus (1) for generating a light beam via at least first and second light sources (2, 3). During operation, the light sources (2, 3) emitting light at the same wavelength. The light sources are arranged such that the beam profile (11) of the first light source is rotated relative to the beam profile (12) of the second light source by a rotation angle (D) about an axis (A) in the direction of propagation. A beam rotation element (4) is located downstream of at least one of the light sources, which causes the beam profile (11, 12) to rotate such that the beam profile (11, 12), after passing through the beam rotation element (4) in a plane perpendicular to the direction of propagation (A) of the light, is oriented substantially identically to the beam profile of the other light source (2, 3) in the plane perpendicular to the direction of propagation.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: April 7, 2020
    Assignee: FISBA AG
    Inventors: Hansruedi Moser, Eberhard Jäger
  • Patent number: 10574977
    Abstract: A floating image display unit according to an embodiment of the technology includes an optical plate and one or a plurality of reflectors. The optical plate includes a plurality of optical elements arranged in a matrix on a substrate having a normal in a Z-axis direction, and each of the optical elements is configured to regularly reflect an entering light beam of a Z-axis direction component and recursively reflect an entering light beam of an XY-axis direction component. The one or the plurality of reflectors are configured to reflect light outputted from a light emitter or a light irradiation target object disposed on rear surface side of the optical plate, thereby causing the light to obliquely enter a rear surface of the optical plate.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: February 25, 2020
    Assignee: SONY CORPORATION
    Inventors: Kazumasa Kaneda, Isamu Nakao, Hiroyuki Ono, Yohei Fukuma
  • Patent number: 10558039
    Abstract: A head-up display apparatus mounted on a moving body. The head-up display apparatus projects an image on a projecting portion. The head-up display apparatus includes a light source portion, an imaging element, a cold mirror, and a phase shifter. The light source portion emits a source light. The imaging element generates the image and outputs the light of the image. The light of the image has a predetermined polarization state. The cold mirror reflects the light of the image toward the projecting portion. In the cold mirror, an optical multilayer film is disposed on a translucent base member, and the light of the image obliquely enters the cold mirror along a plane of incidence of the cold mirror. The phase shifter converts the light of the image into an S wave. The phase shifter is disposed on an optical path between the imaging element and the cold mirror.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 11, 2020
    Assignee: DENSO CORPORATION
    Inventors: Heng Liu, Masayuki Yamaguchi
  • Patent number: 10551795
    Abstract: A spatial light modulator providing an expanded viewing window and a holographic display apparatus including the spatial light modulator are provided. The spatial light modulator includes a mask member having a periodic pattern that is arranged to split an area of each of a plurality of pixels into at least two portions such that a space between lattice spots formed by a period structure of the spatial light modulator increases.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geeyoung Sung, Jungkwuen An, Hongseok Lee
  • Patent number: 10509306
    Abstract: A monolithic liquid crystal display (LCD) projector includes a light emitting diode (LED) light source, a condenser, a collimating lens, an LCD light valve, a field lens and a projection lens. The LCD light valve is disposed between the collimating lens and the field lens. The condenser is disposed between the LED light source and the collimating lens. The projection lens is disposed behind the field lens. A first reflector is disposed between the field lens and the projection lens. The first reflector conducts mirror reflection along a long axis thereof. The present disclosure has the characteristics of small volume, novel shape, good color uniformity of the image, good radiating performance and long service life.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 17, 2019
    Inventor: Ling Chen
  • Patent number: 10459274
    Abstract: A portable device and method of manufacturing a display device includes a display panel having a glass substrate and a polarizer adhered to the glass substrate, a touch panel which is made of resin material and adhered to the polarizer of the display panel by a first adhesive material, and a front window which is made of glass and adhered to the touch panel by a second adhesive material. One of the first adhesive material and the second adhesive material is an adhesive sheet, and an other of the first adhesive material and the second adhesive material is an ultraviolet-curing adhesive material.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 29, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 10455203
    Abstract: Methods and apparatus for controlled shadow casting to increase the perceptual quality of projected content are disclosed. In some examples, an apparatus is to increase a perceptual quality of content projected onto a projection surface. In some examples, the apparatus includes a processor and memory. In some examples, the memory includes computer readable instructions. In some examples, the instructions, when executed, cause the processor to determine a target shutter position for a shutter based on a location of a light source and a location of a projection surface. In some examples, the instructions, when executed, further cause the processor to move the shutter to the target shutter position to cast a shadow onto the projection surface around a portion of content projected onto the projection surface.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: October 22, 2019
    Assignee: INTEL CORPORATION
    Inventors: Srenivas Varadarajan, Selvakumar Panneer, Carl S. Marshall
  • Patent number: 10382678
    Abstract: An image generation apparatus includes first and second light sources, an image sensor, a mask, and a processing circuit. The image sensor acquires a first image when the first light source is energized and acquires a second image when the second light source is energized. The processing circuit obtains a pixel value based on a direct light component or a pixel value based on a component other than the direct light component corresponding to a focal point by using pixel values of first pixel regions of the first image, pixel values of second pixel regions of the second image, the ratios of the direct light and the light other than the direct light from the first light source, and the ratios of the direct light and the light other than the direct light from the second light source and generates a cross-sectional image of a substance on the focal plane.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: August 13, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yumiko Kato, Yoshihide Sawada, Yasuhiro Mukaigawa, Takuya Funatomi, Hiroyuki Kubo, Fusataka Kuniyoshi
  • Patent number: 10379393
    Abstract: 3D shape reconstruction of objects including specular objects in which structured light patterns are projected onto multiple layers of EGlass arranged in spaced-apart relation with each other while each layer is in turn controlled to be in the diffuse mode with all others being in the transparent mode, so as to illuminate the object by the patterns projected onto the layers. Images are captured of the structured light pattern as reflected by the mirror-like surface of the specular object. By projecting multiple different patterns, such as multiple different Gray code patterns, and by sequencing through each EGlass layer for each pattern, the 3D shape of the entirety of the visible surface of the object can be reconstructed by analysis of captured images of the distorted reflections of the patterns by the surface of the object. Embodiments are also described which can be used without reconfiguration for surface reconstruction of the shape of diffuse objects.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: August 13, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mahdi Nezamabadi
  • Patent number: 10353278
    Abstract: A projector includes an exterior housing including an exhaust port and a cooling device provided in the exterior housing and configured to discharge the air, which has cooled a cooling target, to the outside of the exterior housing via the exhaust port. The exterior housing includes a partition member that partitions the exhaust port and forms a plurality of openings. The partition member includes projecting sections projecting from an end edge of at least one of the plurality of openings into the opening.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 16, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Norikazu Kadotani, Keita Tsukioka
  • Patent number: 10324301
    Abstract: A 2D/3D switchable display device is disclosed. Said 2D/3D switchable display device comprises: a backlight panel, a first liquid crystal display panel at a light emergent side of the backlight panel, and a black-and-white second liquid crystal display panel at a light emergent side of the first liquid crystal display panel; wherein during 3D display, the second liquid crystal display panel is fully light-transmissive; during 2D display, liquid crystal molecules in the second liquid crystal display panel are arranged irregularly so as to scatter light emitted from the first liquid crystal display panel.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: June 18, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Pengcheng Lu, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Jian Gao, Ming Yang, Qian Wang, Lei Wang, Rui Xu, Xiaochen Niu, Haisheng Wang
  • Patent number: 10310368
    Abstract: Provided is a projection screen that can effectively diffuse incident light coming from a wide range of angles in the transverse direction and the longitudinal direction and can provide a wide viewing angle even if the projection screen is applied to a large-sized screen.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 4, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Kentaro Kusama, Baku Katagiri
  • Patent number: 10310362
    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 4, 2019
    Assignee: Intel Corporation
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Akihiro Takagi, Paul Winer, John Woodfill
  • Patent number: 10310367
    Abstract: Provided is a projection screen which can effectively diffuse incident light coming from a wide angle, despite that the number of laminated sheets of a light diffusion control film is small such as 3 to 4 sheets, and can thereby provide a wide viewing angle even if the projection screen is applied to a large-sized screen. Disclosed is a projection screen having a light diffusion control plate, the light diffusion control plate being formed by laminating a plurality of sheets of a light diffusion control film, the light diffusion control film being a light diffusion control film having a single light diffusion layer having a first internal structure and a second internal structure sequentially from the lower part along the film thickness direction, in which the first internal structure is a predetermined louver structure, and the second internal structure is a predetermined columnar structure.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 4, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Kentaro Kusama, Baku Katagiri
  • Patent number: 10297071
    Abstract: 3D light field display methods and apparatus with improved viewing angle, depth and resolution are introduced. The methods can be used to create a high quality 3D light field display of any size from smaller than a postage stamp to larger than a three story building.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: May 21, 2019
    Assignee: Ostendo Technologies, Inc.
    Inventors: Zahir Y. Alpaslan, Hussein S. El-Ghoroury
  • Patent number: 10271025
    Abstract: At least one color separating and combining system includes a light combining element, such as a cross dichroic prism, a dichroic mirror that transmits a first (e.g., blue) light, and a first PBS that guides the blue light to a first liquid crystal panel. The system may include a wavelength selective PBS that guides a green light to a second liquid crystal panel and that guides a red light to a direction different from that of the second liquid crystal panel. The system may include a relay optical system, a second PBS that guides the red light to a third liquid crystal panel, and a trimming filter that transmits the green light and reflects the red light. The relay optical system may be disposed between the wavelength selective PBS and the second PBS. The trimming filter may be disposed between the wavelength selective PBS and the cross dichroic prism.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 23, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuuki Maeda
  • Patent number: 10241362
    Abstract: The present disclosure provides a liquid crystal panel and a method for fabricating the same, and a display device. The liquid crystal panel includes a first substrate, a second substrate and a liquid crystal layer, and has a plurality of pixel regions. In each pixel region, a surface of the first substrate close to the liquid crystal layer has a first cambered surface, and a surface of the second substrate close to the liquid crystal layer has a second cambered surface; the first cambered surface and the second cambered surface bend in a direction away from a light emergent surface of the liquid crystal panel, and axes of the first cambered surface and the second cambered surface coincide with each other; and 0° viewing angle point of the pixel region is located on the axes.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Jiang, Quan Gan, Lei Guo, Yongjun Yoon
  • Patent number: 10234106
    Abstract: A double-prism assembly is disclosed, including a first prism and a second prism arranged in a coaxial manner, wherein the first prism has a first prism face structure, the second prism has a second prism face structure, and the first prism face structure and the second prism face structure are arranged in a same direction or in different directions. For the double-prism assembly, when a beam of light hits the bottom of the first prism, passes through the first prism face surface and the second prism face surface, and comes out of the double-prism assembly, two circles of spots arranged in a coaxial manner may be formed, with equally distributed spots, and each of the two circles of spots can freely rotate clockwise or anticlockwise, greatly increasing the style and effect of the spots, and enriching the stage effect and rendering effect. In addition, it is simple in structure and low in cost. A multi-prism combinatorial structure and a light fixture are also disclosed.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: March 19, 2019
    Assignee: Guangzhou GTD Lighting Technology Co., Ltd.
    Inventors: Zeru Wang, Xiang Li, Long Chen
  • Patent number: 10228567
    Abstract: Principal rays of component lights output from a periphery side of respective positions of an image surface generated in an image generation unit forming an image display device are controlled in an intensity distribution control unit so that the principal rays may be inclined more largely toward a center optical axis side than principal rays of component lights output from a center side and output, control is performed so that lights are output in the strongest intensity distributions with respect to axial directions of the principal rays of the respective component lights of image lights output in the respective positions by the intensity distribution control unit, and further, the positions can be adjusted by adjustment of output angles of the respective component lights in response to an aspect ratio of the image surface.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 12, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takahiro Totani, Takashi Takeda, Akira Komatsu, Toshiaki Miyao
  • Patent number: 10228581
    Abstract: A portable device and method of manufacturing a display device includes a display panel having a glass substrate and a polarizer adhered to the glass substrate, a touch panel which is made of resin material and adhered to the polarizer of the display panel by a first adhesive material, and a front window which is made of glass and adhered to the touch panel by a second adhesive material. One of the first adhesive material and the second adhesive material is an adhesive sheet, and an other of the first adhesive material and the second adhesive material is an ultraviolet-curing adhesive material.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 12, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 10203431
    Abstract: A microlens array includes N lenses ranging from a 1st lens to an Nth lens and a lens arrangement area. N is a positive integer. The lens arrangement area has the N lenses arranged in array. The lens arrangement area receives light emitted from a light source. An ith (i being 1st to Nth) lens satisfies a conditional expression below: ?20°???20° where ? denotes an angle formed by a main-axis orientation of double refraction and a reference orientation.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohji Sakai, Miho Higuchi, Jun Watanabe
  • Patent number: 10197894
    Abstract: An image generation device includes an image generator, a stationary unit, a movable unit, and a dustproof unit. The image generator receives light and generate an image. The stationary unit includes a first stationary plate and a second stationary plate opposed to the first stationary plate. The movable unit includes a movable plate movably supported between the first stationary plate and the second stationary plate, the image generator mounted on the movable plate. The dustproof unit includes a dustproof member between the first stationary plate and the movable plate. The dustproof member surrounds the image generator.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: February 5, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventor: Masamichi Yamada
  • Patent number: 10156668
    Abstract: A method of fabricating a wire grid polarizer includes sequentially stacking a conductive wire pattern layer, a sacrificial layer, and an imprint pattern layer; patterning the imprint pattern layer; inspecting the patterned imprint pattern layer for a fault; and removing the sacrificial layer from the conductive wire pattern layer if the fault is present on the patterned imprint pattern layer.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 18, 2018
    Assignee: Samsung Display Co., Ltd
    Inventor: Atsushi Takakuwa
  • Patent number: 10133143
    Abstract: A lens panel according to an exemplary embodiment includes an area that is divided into a plurality of domains in a plan view. The area includes an optical modulation layer, a first electrode, and a second electrode in a sectional view, the first electrode and the second electrode facing each other interposing the optical modulation layer. The first electrode includes a plurality of first openings, and the second electrode includes a plurality of second openings. One of a first opening among the plurality of first openings and a second opening among the plurality of second openings is disposed in each of the plurality of domains in the plan view. The first opening is disposed in a first domain among the plurality of domains, and the second opening is disposed in a second domain that is adjacent to the first domain among the plurality of domains.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su Jung Huh, Yi Joon Ahn, Jae Joong Kwon, Keun Kyu Song
  • Patent number: 10120228
    Abstract: Provided is a display device that is thin in its entirety and has a high contrast. The display device according to the present invention includes an array substrate provided with multiple pixels in array, and a counter substrate oppositely disposed above the array substrate with a liquid crystal layer interposed between the counter substrate and the array substrate. The counter substrate includes a touch sensor wiring pattern disposed in such a manner that at least part of the touch sensor wiring pattern is not parallel or orthogonal to a first polarization axis of polarization light incident on the liquid crystal layer from close to the array substrate. The counter substrate also includes a polarization layer closer to the liquid crystal layer than to the touch sensor wiring pattern, having a second polarization axis with an angle of 0 degrees or 90 degrees with respect to the first polarization axis.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: November 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventor: Masami Hayashi
  • Patent number: 10070105
    Abstract: OR-function illumination in phased bitplanes in a high dynamic range projector is provided, which can be used to reduce flicker artifacts. The projector comprises: a light source; a premod display; a prime display, the premod display configured to modulate light from the light source to illuminate the prime display; and, a computing device. The computing device drives the prime display according to a phased sequence to transition the prime display from a leading bitplane to a following bitplane. The computing device is further configured to, at least in a time period corresponding to the prime display being driven according to the phased sequence, drive adjacent pixel groups of the premod display according to an OR-function of premod versions of respective portions of each of at least the leading bitplane and the following bitplane.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: September 4, 2018
    Assignee: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Stuart James Myron Nicholson, Lawrence Goerzen
  • Patent number: 10027935
    Abstract: There is provided a liquid crystal display unit including a liquid crystal panel for modulating light; a light shielding plate for controlling light not to be incident on areas other than an effective pixel area of the liquid crystal panel; an optical compensation element arranged at sides on which the light is incident in the liquid crystal panel and the light shielding plate; and an optical compensation element holder for holding the optical compensation element to be spaced from the light shielding plate and not to contact other members.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 17, 2018
    Assignee: SONY CORPORATION
    Inventor: Yoshihisa Aikoh
  • Patent number: 9989778
    Abstract: An image display device includes a light source, a scanner, a screen, a virtual image optical system and a screen incident angle correcting optical system. The light source emits laser light. The scanner scans the laser light. An image is formed on the screen by the scanned laser light. The virtual image optical system generates a virtual image of the image by the laser light having transmitted through the screen. The screen incident angle correcting optical system orients the scanned laser light toward the screen. The scanner performs at least first scanning and second scanning that has a scanning direction different from a scanning direction of the first scanning. The screen includes a lenticular lens having a lens pitch in a direction parallel to the first scanning. The lens pitch of the lenticular lens is larger than a beam diameter of the laser light near a light receiving surface of the screen.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: June 5, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Hiroyuki Furuya
  • Patent number: 9971167
    Abstract: An electronic appliance has a first polarization convertible diffraction device which splits laser light emitted from a light source into a plurality of components of the laser light; a second polarization convertible diffraction device which combines together the plurality of components of the laser light into combined laser light; an optical path length adjuster which adjusts the optical path length difference between the plurality of components of the laser light along the path between the first and second polarization convertible diffraction devices; and an angle-of-incidence adjuster which adjusts, to predetermined angles, the angles of incidence at which the plurality of components of the laser light are respectively incident on the second polarization convertible diffraction device.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: May 15, 2018
    Assignee: Funai Electric Co., Ltd.
    Inventor: Hiroki Matsubara
  • Patent number: 9959836
    Abstract: An image output apparatus includes a light emitting unit, a power supplying unit, and a control unit. The light emitting unit is configured to emit a laser beam. The power supplying unit is configured to supply power to the light emitting unit at a predetermined voltage. The control unit is configured to control the power supplying unit to supply the power to the light emitting unit in a predetermined period at the voltage associated with a peak light emission amount of the light emitting unit in image data for the predetermined period.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 1, 2018
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Susumu Seino
  • Patent number: 9927560
    Abstract: Disclosed herein are devices and techniques related to optical diffusers and particularly, diffusers to reduce moiré patterns in a projected image. The device may comprise an array of micro-focal elements or reflectors and a light polarization grid. The light polarization grid configured to change a polarization between portions of a light beam and the micro-focal elements of reflectors to diffuse the light beam such that portions of the light beam having a difference in polarization may meet at a point.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 27, 2018
    Assignee: INTEL CORPORATION
    Inventors: Jonathan Masson, Christophe Le Gros, Lucio Kilcher
  • Patent number: 9857622
    Abstract: A microlens array substrate includes a substrate having a surface in which a concave portion is provided, a lens layer that is provided so as to fill the concave portion, and an optical path length adjustment layer that is provided so as to cover the lens layer. A flat portion is disposed in a central portion of the concave portion. A refractive index of the lens layer is higher than a refractive index of the substrate, and a refractive index of the optical path length adjustment layer is higher than a refractive index of the substrate and is equal to or lower than a refractive index of the lens layer.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Junichi Wakabayashi
  • Patent number: 9841578
    Abstract: A projector includes an image forming panel 14 on which an image is formed, and a projection lens 15 which projects the image of the image forming panel 14. In a projector in which the center of the image forming panel 14 is fixed with being shifted in a direction opposite to a direction in which a central position of the projected image of the image forming panel 14 is deviated with respect to an optical axis L of the projection lens 15, a lens barrel 31 of the projection lens 15 includes heater 33 for heating a lens barrel portion on a side opposite to a direction, in which the image forming panel 14 is shifted, on the image forming panel 14 side from the diaphragm position 32 where an F-Number of the projection lens is determined. Cooler may be provided in place of the heater.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 12, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Yasuto Kuroda
  • Patent number: 9835865
    Abstract: A video display device includes: a display element displaying images by modulating light from an illumination optical system; and an eyepiece optical system guiding image light from the display element into an optical pupil. The illumination optical system includes: a light source including light emission points arranged substantially linearly; a diffuser plate diffusing illumination light from the light source in a first direction, in which the light emission points are arranged, but not in a second direction perpendicular to the first direction; and an optical element bending the illumination light such that the optical pupil and the light source are substantially conjugate. The optical element includes an illumination mirror, a reflection surface thereof having a non-zero curvature in all sections including a normal line at the optical-axis intersection. Here, the section perpendicular to the first direction has a different curvature from the section perpendicular to the second direction.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: December 5, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventor: Yoshihiro Inagaki
  • Patent number: 9829744
    Abstract: A display illumination module for the illumination of a rear-projection screen is provided in which a first array of light sources is positioned adjacent to a first face of an optical modulating array layer for modulating the transmission of light emitted by the first array light sources. The first array light sources emit light within a defined angular range, and the optical modulating array layer is positioned relative to the first array of light sources so that light from adjacent light sources does not overlap at the optical modulating array layer. A second array of light sources is positioned adjacent to a second side of the optical modulation array layer and is arranged such that light from the second array of light sources does not pass through said optical modulation array layer and said second array of light sources does not substantially block light from the first array of light sources passing through the optical modulating array layer.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 28, 2017
    Assignee: McMaster University
    Inventor: Adrian Kitai
  • Patent number: 9818234
    Abstract: 3D shape reconstruction of objects including specular objects in which structured light patterns are projected toward an object which reflects the patterns onto multiple layers of EGlass arranged in spaced-apart relation with each other while each layer is in turn controlled to be in the diffuse mode with all others being in the transparent mode. Images are captured of the structured light pattern as reflected onto the EGlass layers by the mirror-like surface of the specular object. By projecting multiple different patterns, such as multiple different Gray code patterns, and by sequencing through each EGlass layer for each pattern, the 3D shape of the entirety of the visible surface of the object can be reconstructed by analysis of captured images of the distorted reflections of the patterns by the surface of the object. Embodiments are also described which can be used without reconfiguration for surface reconstruction of the shape of diffuse objects.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mahdi Nezamabadi, Manuel Martinello
  • Patent number: 9816911
    Abstract: High numerical aperture collection optics for particle analyzers may include an ellipsoidal reflector or an ellipsoidal reflector in combination with a spherical reflector, and may efficiently collect light scattered or emitted by particles in a sample stream and then couple that collected light into a lower numerical aperture portion of the instrument's optical detection system, such as into an optical fiber for example. The reflectors may be integrated with a flow cell through which the sample stream passes, or may be separate components arranged around a flow cell or, in instruments not employing a flow cell, arranged around a sample stream in air. Refractive beam steering optics may allow multiple closely spaced excitation beams to be directed into the sample stream at low angles of incidence. The collection optics and refractive beam steering optics may be employed separately or in combination with each other.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 14, 2017
    Assignee: Beckman Coulter, Inc.
    Inventors: Antao Chen, Juan J. Fernandez De Castro, Paul K. Church
  • Patent number: 9798154
    Abstract: Polarization state in retro-reflective arrays may be controlled throughout the optical path of a retro-reflective retro-imaging setup to enhance system efficiency. A polarization beam splitter layer and a retarder layer placed in front of the retro-reflector array may be oriented such that polarized light is used as source, source input light is efficiently reflected at the polarization beam splitter layer toward the retro-reflective layer, and polarization is converted to circular upon first pass through retarder layer. The polarization may also be oriented at or near 45° with respect to input polarization state, light may be retro-reflected and reconverged at the retro-reflective layer, and converted to linear polarization state. The light may then be rotated about 90° with respect to input linear state, and/or passed through the polarization beam splitter layer upon second pass to form the reconvergent image.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: October 24, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Karlton Powell, Tim Large, Yutaka Tokuda
  • Patent number: 9791751
    Abstract: An LCD lower substrate assembly is assembleable with an LCD upper substrate assembly. The LCD lower substrate assembly includes a carrier board and a first alignment pad, a first alignment wire and a first group of adaption pads having a function of electrical conduction, which are arranged on the carrier board. The first alignment pad is electrically connected to the first alignment wire to receive a voltage signal and to apply the voltage signal to the first alignment wire. The first-group adaption pads are electrically connected to the first alignment wire in a spaced manner to receive the voltage signal that, after the assembly of the two substrate assemblies, is transmittable to a first group of common electrodes on the LCD upper substrate assembly. Connection portions between the adaption pads and the first alignment wire and the first-group adaption pads do not cross other alignment wires on the carrier board.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: October 17, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Guo Zhao
  • Patent number: 9791770
    Abstract: A light-source module includes a light-source unit, a first projection lens, a first lens, a mirror wheel, a first light-guiding unit, a second light-guiding unit, and a second projection lens. The first projection lens has an entrance pupil. The light beam provided by the light-source unit can pass through the first projection lens via the entrance pupil and then is guided to the mirror wheel. With the rotation of the mirror wheel, when the light beam passes through the mirror wheel, it becomes a transmission light beam. At different time, when the light beam is reflected by the mirror wheel, it becomes a reflection light beam. The second projection lens has a first exit pupil and a second exit pupil, in which the transmission light beam and the reflection light beam pass through the second projection lens via the first exit pupil and the second exit pupil, respectively.
    Type: Grant
    Filed: July 10, 2016
    Date of Patent: October 17, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: June-Jei Huang
  • Patent number: 9743053
    Abstract: A light source apparatus according to an embodiment of the present technique includes a first light source section, a second light source section, a third light source section, and a synthesis section. The first light source section includes a plurality of red laser light sources arranged in an array. The second light source section includes a plurality of green laser light sources arranged in an array. The third light source section includes a plurality of blue laser light sources arranged in an array. The synthesis section synthesizes red laser light emitted from the first light source section, green laser light emitted from the second light source section, and blue laser light emitted from the third light source section to generate white light.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 22, 2017
    Assignee: SONY CORPORATION
    Inventors: Koji Kita, Yuji Manabe
  • Patent number: 9726884
    Abstract: The displaying apparatus unit according to the present invention includes a first holder configured to hold a displaying element, a second holder configured to hold an optical operating plate which operates on light from the displaying element, a first dustproof cover member disposed between the first holder and the second holder, and configured to cover a whole side surface of the displaying element, and a second dustproof cover member disposed between the first dustproof cover member and the second holder, wherein the first dustproof cover member is in contact with the first holder, the second dustproof cover member is in contact with the second holder, the first dustproof cover member and the second dustproof cover member are in contact with each other, and the first dustproof cover member has a hardness higher than that of the second dustproof cover member.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 8, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takehiro Koyama
  • Patent number: 9721999
    Abstract: A pixel element structure is disclosed. The pixel element structure includes first, second, and third sub-pixel elements, each including a light-emitting region. At least one of the first, second, and third sub-pixel elements includes a light-transmitting region, where the light-emitting region includes an organic light-emitting diode light-emitting structure, and where the organic light-emitting diode light-emitting structure includes a first substrate, and a nontransparent anode, a pixel defining layer, an organic layer and a cathode, sequentially arranged above the first substrate.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: August 1, 2017
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Boyan Lv, Liyuan Luo, Dong Qian
  • Patent number: 9715168
    Abstract: An aspect of the polarization conversion element according to the invention is directed to a polarization conversion element including a first optical block including a first polarization separation film, a first reflecting film, a first surface, and a first light incidence surface, and a second optical block including a second polarization separation film, a second reflecting film, a second surface, and a second light incidence surface, wherein the first optical block and the second optical block are bonded to each other so that the first surface and the second surface are opposed to each other, the first polarization separation film is disposed so as to be opposed to the second polarization separation film via the first surface and the second surface, and the first polarization separation film is terminated at a position in the first surface separate from the first light incidence surface.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: July 25, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Endo, Masaki Iwamoto