Multicolor Picture Patents (Class 353/31)
  • Patent number: 10845689
    Abstract: A light source unit includes a first light source for emitting light in a first wavelength range, a luminescent wheel including a second light source for emitting light in a second wavelength range and a third light source for emitting light in a third wavelength range whose wavelength differs from that of the light in the second wavelength range, which are disposed circumferentially end to end in an adjacent fashion, a fourth light source for emitting light in a fourth wavelength range similar in color system to the light in the second or third wavelength range, and a control unit for controlling the fourth light source and the luminescent wheel to illuminate the fourth light source during a first color mixing period when a boundary between the second and third light sources is situated on an optical path of the light in the first wavelength range.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 24, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro Ogawa
  • Patent number: 10842083
    Abstract: An LED lighting system for use in an indoor growing system. The lighting system includes a lighting tray having a tube containing a printed circuit board therein. The circuit board has blue and red LED lights. The LEDs draw power and at least one of the LEDs draws power of less than 1 Watts and may draw less than ½ Watt. The dispersion angle of the LEDs is less than 40° degrees and may be less than 30° degrees. The heat-sinking capabilities of a standard circuit board are sufficient without special metalized layers or external heat sinks. Additionally, conversion to low voltage power is achieved remotely in an area away from the lights. In the lighting system, the ratio of red to blue LEDs is 15-24% red to 76-85% blue.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 24, 2020
    Assignee: ZEA BIOSCIENCES CORP
    Inventors: James G. Wilson, Gerald C. Antoine, Robert A. Adams
  • Patent number: 10838291
    Abstract: An illumination system and a projection device are provided. The illumination system includes first excitation light sources, an excitation light source module, a wavelength conversion element and a light combining element. The excitation light source module includes second excitation light sources adapted to emit second excitation light beams and third excitation light sources adapted to emit third excitation light beams. The excitation light source module has a first symmetric axis and a second symmetric axis perpendicular to each other, where the second excitation light sources and the third excitation light sources are respectively arranged symmetrically relative to the first symmetric axis, and the second excitation light sources and the third excitation light sources are respectively arranged symmetrically relative to the second symmetric axis. The projection device includes the illumination system, a light valve and a projection lens.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: November 17, 2020
    Assignee: Coretronic Corporation
    Inventor: Chen-Wei Fan
  • Patent number: 10824069
    Abstract: A projection apparatus and an illumination system thereof are provided. The illumination system includes a light source device, a light homogenization device, an optical transmission module, and an optical wavelength conversion module. The light homogenization device is disposed on a transmission path of a light source beam from the light source device. The optical transmission module is disposed on a transmission path of the light source beam from the light homogenization device. The optical wavelength conversion module is disposed on a transmission path of the light source beam from the optical transmission module and is configured to convert a first portion of the light source beam into a converted light beam. The converted light beam and a second portion of the light source beam form an illumination light beam. The light homogenization device is disposed outside a transmission path of the illumination light beam.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: November 3, 2020
    Assignee: Coretronic Corporation
    Inventor: Chih-Hsien Tsai
  • Patent number: 10816472
    Abstract: An image acquisition device includes a spatial light modulator modulating irradiation light, a control unit controlling a modulating pattern so that first and second light converging points are formed in an observation object, a light converging optical system converging the irradiation light, a scanning unit scanning positions of the first and second light converging points in the observation object in a scanning direction intersecting an optical axis of the light converging optical system, and a photodetector detecting first observation light generated from the first light converging point and second observation light generated from the second light converging point. The photodetector has a first detection area for detecting the first observation light and a second detection area for detecting the second observation light. The positions of the first and second light converging points are different from each other in a direction of the optical axis.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 27, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Naoya Matsumoto, Koyo Watanabe
  • Patent number: 10816801
    Abstract: The present invention is directed to wearable display technologies. More specifically, various embodiments of the present invention provide wearable augmented reality glasses incorporating projection display systems where one or more laser diodes are used as light source for illustrating images with optical delivery to the eye using transparent waveguides. In one set of embodiments, the present invention provides wearable augmented reality glasses incorporating projector systems that utilize transparent waveguides and blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides wearable augmented reality glasses incorporating projection systems having digital lighting processing engines illuminated by blue and/or green laser devices with optical delivery to the eye using transparent waveguides.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 27, 2020
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Paul Rudy, James W. Raring, Eric Goutain, Hua Huang
  • Patent number: 10802267
    Abstract: A projection apparatus and an illumination system are provided. The illumination system includes an excitation light source and a light wavelength conversion module. The excitation light source is adapted to provide an excitation beam. The light wavelength conversion module includes a first phosphor wheel and a second phosphor wheel. The second phosphor wheel is disposed adjacent to the first phosphor wheel, and the first phosphor wheel and the second phosphor wheel are respectively disposed on transmission paths of a first part and a second part of the excitation beam, such that during a period that the excitation light source is turned on, the first phosphor wheel and the second phosphor wheel are both irradiated by the excitation beam. The illumination system of the invention avails improving phosphor conversion efficiency and avoiding burning the phosphor powder. The projection apparatus has good performance.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 13, 2020
    Assignee: Coretronic Corporation
    Inventors: Chang-Hsuan Chen, Chien-Chung Liao
  • Patent number: 10798349
    Abstract: A projecting apparatus includes an illuminating system and a first sensing module. The illuminating system includes a light source module and a filter element. The first sensing module is disposed beside the filter element, and includes a first light emitter and a first light sensor. The first light emitter emits a first sensing light. Outside the transmission path of the light beam, a first and a second filter regions of the filter element are sequentially cut into a transmission path of the first sensing light. When the first filter region is cut into the transmission path of the first sensing light, the first light sensor generates a first sensing signal, and when the second filter region is cut into the transmission path of the first sensing light, the first light sensor generates a second sensing signal, and the first sensing signal is different from the second sensing signal.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 6, 2020
    Assignee: Coretronic Corporation
    Inventor: Haw-Woei Pan
  • Patent number: 10774998
    Abstract: A wavelength-converting wheel has a light incident side. The wavelength-converting wheel includes a motor, a turntable, a wavelength-converting layer and a reflective element. The motor has a rotating shaft. The turntable has an inner ring portion and an annular irradiation portion. The inner ring portion is sleeved on the rotating shaft, the annular irradiation portion is connected to an outer edge of the inner ring portion, and the annular irradiation portion includes a light-reflecting region and a wavelength-converting region. The wavelength-converting layer is disposed in the wavelength-converting region and has a light receiving surface facing the light incident side. The reflective element is disposed in the light-reflecting region and has a reflective surface facing the light incident side. The light receiving surface is coplanar with the reflective surface or the light receiving surface is farther from the light incident side with respect to the reflective surface.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 15, 2020
    Assignee: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh, Ming-Tsung Weng
  • Patent number: 10769988
    Abstract: A display device includes a screen having a plurality of pixels displaying an image. A projector includes a light source emitting a first light and a light converter configured to change an intensity of the first light with respect to each of the plurality of pixels so that the projector emits a conversion light. Each of the plurality of pixels of the screen includes a light receiving element configured to receive the conversion light and to generate a current proportional to an intensity of the conversion light. A light emitting element is configured to display the image based on the generated current.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Keumdong Jung
  • Patent number: 10768518
    Abstract: A light source apparatus includes a first light source configured to generate first light, a phosphor to be excited by the first light to generate second light, a second light source configured to generate third light, and a spectroscopic optical element configured to reflect the first light to the phosphor and to combine the first light reflected without being absorbed by the phosphor, the second light, and the third light with one another. The spectroscopic optical element has a first area and a second area. The first area has a spectral characteristic of reflecting the first light, of transmitting the second light, and of reflecting the third light. The second area has a spectral characteristic of transmitting the first light and the second light, and of reflecting the third light.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takehito Kawasumi
  • Patent number: 10761414
    Abstract: A projection apparatus and a light source apparatus are provided. The light source apparatus includes at least one first light source, at least one second light source, a wavelength conversion device, and a filter device. The wavelength conversion device is disposed on a transmission path of the first light beam from the first light source, and converts the first light beam into a conversion light beam. The filter device corresponds to the wavelength conversion device and is disposed between the first light source and the wavelength conversion device and disposed between the second light source and the wavelength conversion device. The filter device allows the first light beam and the conversion light beam to pass through, and reflects the second light beam. The projection apparatus and the light source apparatus have favorable light source utilization efficiency.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 1, 2020
    Assignee: Coretronic Corporation
    Inventors: Chih-Hsien Tsai, Yi-Hsuang Weng
  • Patent number: 10754235
    Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel and a mirror. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a reflection area reflecting the light of the first wavelength band. The minor reflects a component in a first polarization direction of the light of the first wavelength band and transmits a component in a second polarization direction orthogonal to the first polarization direction. The reflection area includes a reflecting surface and a polarization conversion layer including an optical axis and converts either the first or second polarization direction to another polarization direction. The optical axis of the polarization conversion layer is inclined by 45 degrees to a polarization direction of the light of the first wavelength band at an irradiation position thereof in the fluorescent wheel.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 25, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro Ogawa
  • Patent number: 10747094
    Abstract: A HUD 100 includes a R light source 12r, a G light source 12g, and a B light source 12b; collimating lenses 13r, 13g, and 13b that are arranged forwardly of the light sources; fly-eye lenses 16 and 17 that are arranged side by side on an optical path of light that exits from the collimating lenses; a light modulation element 20 that, based on image information, performs spatial modulation on light that has passed through the fly-eye lenses; a projection optical system 50 that projects image light onto a projection surface 7, the image light acquired by the spatial modulation by the light modulation element; photodetection elements PD1 and PD2 that are fixed to a portion of the fly-eye lens 16; and an image light control unit 40B that controls a brightness distribution of the image light based on a brightness of light detected by each of the photodetection elements.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 18, 2020
    Assignee: FUJIFILM Coporation
    Inventor: Nobuko Asuma
  • Patent number: 10747096
    Abstract: A light source unit of the present invention includes a light emitting device emitting light having a characteristic in which emitted light travels in a predetermined direction in which a uniformity in intensity distribution relative to an axis of the emitted light is high and an unstable direction in which a uniformity in intensity distribution relative to the axis of the emitted light is lower than that in the predetermined direction, the unstable direction being at right angles to the predetermined direction, an intensity transforming lens formed to control the intensity distribution in the predetermined direction and on which the light emitted from the light emitting device is incident, and a superposition transforming optical device formed to control the intensity distribution in the unstable direction by dividing the intensity distribution into a plurality of directions and superposing divided intensity distributions one on the other.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 18, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Miyazaki
  • Patent number: 10731841
    Abstract: A light source apparatus including a light source section including one or more solid light sources capable of emitting light of a predetermined wavelength band as incident light; a light outputting section including a light emitting body to be excited by incident light from the light source section and to emit visible light having a wavelength band longer than a wavelength of the incident light, the light outputting section being capable of emitting synthetic light containing light having the predetermined wavelength band and visible light from the light emitting body; and a housing holding the light source section and the light outputting section, the housing including an inlet and an outlet formed not to face a light path of the incident light from the light source section to the light outputting section.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 4, 2020
    Assignee: SONY CORPORATION
    Inventors: Kazuya Terasaki, Daisuke Ogawa, Hiroyuki Meguro, Takashi Takamatsu
  • Patent number: 10732496
    Abstract: A color wheel includes a base substrate and at least one fluorescent block. The base substrate includes a first annular portion and a second annular portion. The at least one fluorescent block is arranged on the first annular portion. The fluorescent block is configured to emit fluorescent light in a predetermined wavelength band after being irradiated with a laser beam. The second annular portion includes at least one color filtering portion, and the color filtering portion is configured to filter the fluorescent light. An inner circumference of the second annular portion is not smaller than an outer circumference of the first annular portion, or an outer circumference of the second annular portion is not larger than an inner circumference of the first annular portion.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: August 4, 2020
    Assignees: HISENSE CO., LTD., HISENSE USA CORP., HISENSE INTERNATIONAL CO., LTD.
    Inventor: Fei Zhao
  • Patent number: 10728507
    Abstract: A projector includes a light source, an optical engine module, and a projection lens. The light source is configured for providing an illumination beam. The optical engine module includes a light valve, a casing, and a heat conducting structure. The light valve is configured to convert the illumination beam into an image beam. The light valve has a front portion and a rear portion opposite to each other. The casing is connected to the front portion. The heat conducting structure is disposed on the casing and at at least one side of the front portion. The projection lens is disposed on the casing and configured to project an image. The heat conducting structure is configured to dissipate heat of the casing and the front portion of the light valve.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: July 28, 2020
    Assignee: Coretronic Corporation
    Inventors: Kai-Lun Hou, Te-Tang Chen, Wei-Min Chien
  • Patent number: 10726802
    Abstract: According to one embodiment, a display device includes a display panel and a conversion circuit. The display panel is with a first pixel including subpixels of red, first green which is tinged red as compared to a reference green, and blue, and a second pixel including subpixels of red, second green which is tinged blue as compared to the reference green, and blue, where the first pixel and the second pixel are arranged alternately. The conversion circuit is configured to generate a four primary color image of red, first green, second green, and blue from a three primary color image of red, reference green, and blue and to perform rendering the first image and the second image from the four primary color image.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 28, 2020
    Assignee: Japan Display Inc.
    Inventor: Kazunari Tomizawa
  • Patent number: 10725368
    Abstract: A light source apparatus includes a light emitting element configured to emit light having a first wavelength band, a polarization separation element configured to separate the light having the first wavelength band into a first linear polarization light and a second linear polarization light having polarization directions different from each other, a wavelength conversion element configured to convert the first linear polarization light into a third linear polarization light having a wavelength band different from the first wavelength band, and a combination element configured to combine the second linear polarization light and the third linear polarization light with each other. Light from the light source apparatus maintains a polarization state and illuminates a light modulation element via an illumination optical system.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: July 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yuuki Maeda
  • Patent number: 10719007
    Abstract: [Solving Means] A composite-optical-system unit includes a polarization beam splitter and a thermal conduction member. The polarization beam splitter includes a first prism including a first surface, a second prism including a second surface having an area different from an area of the first surface, and an overlap interface on which the first surface is attached to and overlaps the second surface. The thermal conduction member is thermally connected to a connection region being a region other than the overlap interface of the first surface or the second surface having an area larger than an area of the other surface.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: July 21, 2020
    Assignee: SONY CORPORATION
    Inventor: Yoshihisa Aikoh
  • Patent number: 10712646
    Abstract: A phosphor wheel of a first exemplary embodiment in the present disclosure includes a base plate, an annular phosphor provided on the base plate, and a reflective coating provided on a partial area of the annular phosphor. Further, a phosphor wheel of a second exemplary embodiment includes a base plate, an annular phosphor layer that is provided on the base plate and constituted by a plurality of phosphor segments, and a reflective coating provided on a partial area of the annular phosphor layer.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: July 14, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takashi Ikeda
  • Patent number: 10706870
    Abstract: A sound processing method includes: executing a time frequency conversion process; executing a noise level evaluation process; executing a bandwidth controlling process; executing a sound source direction decision process; executing a gain setting process; executing a correction process; and executing a frequency time conversion process.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 7, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Naoshi Matsuo
  • Patent number: 10701327
    Abstract: A first projection display apparatus includes a color separator (41A) that has first and second incident surfaces (S1a and S1b), and allows light in first to third wavelength bands to pass therethrough or reflects the light in the first to third wavelength bands; first to third reflective light modulators (15); a first polarization splitter (12G); a second polarization splitter (12RB); and a projection optical system (19). Light in at least one of the first to third wavelength bands enters the first incident surface of the color separator as first polarized light, and light in the other wavelength bands enters the second incident surface of the color separator as second polarized light orthogonal to the first polarized light.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 30, 2020
    Assignee: SONY CORPORATION
    Inventors: Yoshihisa Sato, Hiroyuki Yanagisawa, Masa Tanaka, Ryo Miyao
  • Patent number: 10691264
    Abstract: A projection display apparatus includes a light valve that modulates illuminating light on the basis of image data to output the modulated light, an illuminating unit including a light source, and a plurality of optical members for illumination that generate the illuminating light on the basis of light from the light source to guide the illuminating light to the light valve, a projection lens that projects the modulated light from the light valve on a projection surface, and allows detection light to enter from a direction opposite to a travelling direction of the modulated light, and an imaging device that is disposed at a location optically conjugated with the light valve, and allows the detection light to enter through the projection lens. The plurality of optical members for illumination have optical property of reducing a noise component that affects the detection light and arises inside the illuminating unit.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: June 23, 2020
    Assignee: SONY CORPORATION
    Inventor: Koji Miura
  • Patent number: 10684540
    Abstract: An illumination system including a first excitation light source, a wavelength conversion element, and a scattering element is provided. The first excitation light source emits a first excitation beam. The wavelength conversion element includes a wavelength conversion material. The wavelength conversion element has a first region and a second region. A concentration of the wavelength conversion material in the first region is greater than a concentration of the wavelength conversion material in the second region. The scattering element is disposed on a transmission path of the first excitation beam. A projection apparatus with the illumination system is also provided.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: June 16, 2020
    Assignee: Coretronic Corporation
    Inventors: Haw-Woei Pan, Chi-Tang Hsieh
  • Patent number: 10677977
    Abstract: Various embodiments of lightguides and illumination systems that include lightguides are disclosed. In one or more embodiments, a lightguide can include first and second light extractors (330,340) that extract light that would otherwise be confined and propagate within the lightguide along the length of the lightguide primarily by total internal reflection. The first and second light extractors can form respective first and second patterns along a length of the lightguide. Light extracted by the first light extractors can exit the lightguide primarily along a first direction (306). Light extracted by the second light extractors can exit the lightguide primarily along a second direction (308) different from the first direction. A brightness of the total light extracted by the first light extractors can be larger than a brightness of the total light extracted by the second light extractors.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 9, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Tao Liu, Mark E. Napierala
  • Patent number: 10678122
    Abstract: The invention provides a wavelength conversion device, including a first wavelength conversion portion and a second wavelength conversion portion. The second wavelength conversion portion includes a wavelength maintenance zone and a plurality of wavelength conversion structures. When the second wavelength conversion portion is switched onto a transmission path of the excitation beam, a portion of the excitation beam is incident on the wavelength maintenance zone and becomes a second color beam, and another portion of the excitation beam is incident on the wavelength conversion structures and converted into a predetermined color beam. A first chromaticity coordinate value of the second color beam in color space is (x, y), a second chromaticity coordinate value of the second color beam, after being combined with the predetermined color beam by the dichroic element, in the color space is (x?, y?), and x??x and y??y.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 9, 2020
    Assignee: Coretronic Corporation
    Inventors: Haw-Woei Pan, Chih-Hsien Tsai
  • Patent number: 10663840
    Abstract: A projection-type display device, provided with: a reflection-type image display element (DP), in which illumination light is reflected at an image display surface so as to be converted to image light and emitted; a prism unit (PU1) that bends a light path of the illumination light and transmits image light; and a projection lens system (PO) that projects the image light transmitted through the prism unit onto a screen. The prism unit (PU1) has an air gap (AG) that is disposed obliquely with respect to the main light rays of the image light emitted from the center of the image display surface. At least one lens (DL) in the projection lens system (PO) is eccentric in relation to the optical axis of the projection lens system (PO) so that comatic aberration produced when the image light is transmitted through the air gap (AG) will be canceled out.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 26, 2020
    Assignee: Konica Minolta, Inc.
    Inventor: Masayuki Imaoka
  • Patent number: 10659669
    Abstract: The projection display unit includes an illumination section including one or a plurality of light sources, a light valve that modulates light emitted from the illumination section and outputs the modulated light, a projection lens section that projects the light outputted from the light valve onto a projection surface, a light-receiving section including an imaging device that receives light incident via the projection lens section, and an optical device that allows for splitting into respective optical paths that pass through the illumination section, the light valve, and the light-receiving section. A first range corresponding to a portion of a pupil range of the projection lens section is assigned for projection, and the light-receiving section includes a light-shielding part that performs light-shielding of a selective part corresponding to the first range, at a position substantially optically conjugate with respect to an aperture of the projection lens section.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: May 19, 2020
    Assignee: SONY CORPORATION
    Inventor: Toshifumi Yasui
  • Patent number: 10656509
    Abstract: To provide an image projection apparatus that is able to efficiently cool an inside of a housing. There is provided an image projection apparatus including: an air intake port that is provided in a housing and through which air is caused to flow into an inside of the housing; and an air discharge port that is provided in the housing and through which air inside the housing is discharged. The image projection apparatus includes an air exhaust flow path in which air that has flowed into the inside of the housing from the air intake port is caused to pass through a heat generation component having a highest temperature, at an end of the passing through, among a plurality of heat generation components provided inside the housing, and is discharged from the air discharge port.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 19, 2020
    Assignee: SONY CORPORATION
    Inventors: Ken Okude, Hiroyuki Meguro
  • Patent number: 10643510
    Abstract: The projection type display device includes a projection display unit that includes light sources, a light modulation element that spatially modulates light emitted from the light sources, and a projection unit that projects light spatially modulated by the light modulation element onto a projection surface; a sight line detection unit that detects a line of sight; and a system controller that stops projection of the projection light onto the projection surface by the projection display unit in a state where the line of sight detected by the sight line detection unit is out of the projection surface and restarts the projection of the projection light onto the projection surface by the projection display unit after a first time elapses after a timing of moment when the line of sight is determined to move from an outside of the projection surface to an inside of the projection surface.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Koudai Fujita
  • Patent number: 10642144
    Abstract: A display device includes a screen, first and second projectors, and a controller. The screen has first and second surfaces. The first projector projects a first horizontally non-inverted image as viewed from the first surface. The second projector projects a second horizontally non-inverted image as viewed from the second surface. The controller controls switching of an operation between the first and second projectors.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masafumi Ono, Tomotaka Matsuyuki, Sayaka Hirose, Yuri Takeuchi
  • Patent number: 10634979
    Abstract: A lighting apparatus is provided with a light source unit including laser diode elements, a collimating lens, and at least one optical element changing only a predetermined one-axis direction of a traveling direction of the substantially parallel light. When the substantially parallel light is incident on a first surface of the optical element, the optical element reflects the substantially parallel light by a second surface to change only the one-axis direction of the traveling direction of the substantially parallel light, and emits an inclined light flux inclined from the substantially parallel light. An aspect ratio of a screen configured by spot lights from the light source unit is changed to an aspect ratio on a cross section of a predetermined position in a traveling direction of the inclined light flux.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: April 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Norikazu Yamamoto
  • Patent number: 10627708
    Abstract: A projector including a light source device configured to emit light, a light modulator configured to modulate the light emitted from the light source device in accordance with an image signal, a projection optical device configured to project the light modulated by the light modulator, and a cooler configured to cool a cooling target based on transformation of a refrigerant into a gas. The cooler includes a refrigerant generator configured to generate the refrigerant and a refrigerant sender configured to send the generated refrigerant toward the cooling target. The refrigerant generator includes a flow passage section through which the refrigerant flows. A portion of the inner surface of the flow passage section that is the portion facing the lower side in the gravity direction inclines with respect to the horizontal plane perpendicular to the gravity direction.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 21, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Nobuo Sugiyama, Naoya Okada
  • Patent number: 10627712
    Abstract: A wavelength conversion element according to an aspect of the invention includes a base having a reflection surface, a wavelength conversion section that has a first surface on which excitation light is incident and a second surface facing away from the first surface and converts the excitation light in terms of wavelength into fluorescence, and a bonding section that bonds the wavelength conversion section to the base. Bonding the wavelength conversion section to the base via the bonding section with the reflection surface and the second surface separate from each other provides an air layer in part of the space between the reflection surface and the second surface, and at least part of a portion of the first surface that is the portion facing the air layer is a light incident area on which the excitation light is incident.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 21, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shigeo Nojima
  • Patent number: 10617290
    Abstract: A light source apparatus for endoscope includes: a housing including an intake port; a first heat radiating portion connected to a first light source and cooled by gas taken in from the intake port; a third heat radiating portion connected to a third light source, and cooled by gas taken in from the intake port; and a second heat radiating portion including a lower necessary cooling amount than the first heat radiating portion and the third heat radiating portion connected to a second light source provided in a flow path in which a flow path of the gas that passes through the first heat radiating portion and a flow path of the gas that passes through the third heat radiating portion are merged together, and cooled by merged gas merged on a merged flow path.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 14, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Yusuke Yoshida, Masaaki Watanabe
  • Patent number: 10620520
    Abstract: A wavelength conversion element includes a phosphor layer that emits fluorescence when excitation light is incident on the phosphor layer, a base having a reflection layer, and a filter provided on a side of the phosphor layer that is the side opposite the reflection layer. The filter is so configured that the reflectance of light that belongs to a wavelength region from the wavelength of the excitation light to the wavelength of the fluorescence and is incident on the filter at right angles is minimized at a first wavelength, and the first wavelength is located between the peak wavelength of the excitation light and the peak wavelength of the fluorescence.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Osamu Okumura
  • Patent number: 10621694
    Abstract: An image processing apparatus includes: an acquisition unit that acquires a plurality of first images that correspond to a plurality of spatial frequencies on a one-to-one basis; and a generation unit that generates a second image by synthesizing the first images acquired by the acquisition unit.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 14, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Kikuchi, Kiichiroh Saitoh
  • Patent number: 10620517
    Abstract: A projector includes a light emitting device and a light modulator. The light emitting device includes first and second semiconductor layers respectively electrically connected to first and second electrodes, a light emitting layer generating light by having a current injected thereinto, and a third electrode connected to the second electrode. The second electrode transmits the light generated in the light emitting layer. The third electrode has less resistivity than the second electrode, and includes first conductive sections arranged in a first direction. The light modulator includes pixels, and adjacent pixels are spaced apart by gaps. The arrangement pitch of the first conductive sections in the first direction is a multiple of the arrangement pitch of the gaps in the first direction. The shadows of the first conductive sections generated by the light emitted from the light emitting device are cast onto the gaps.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Hiroyasu Kaseya
  • Patent number: 10606155
    Abstract: A light source device including a plurality of solid-state light sources, and a cooling member having a plurality of cooling surfaces, the cooling member being configured to cool the plurality of solid-state light sources provided on the respective cooling surfaces.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 31, 2020
    Assignee: SONY CORPORATION
    Inventor: Yoshiro Asano
  • Patent number: 10606159
    Abstract: A method and apparatus for controlling a projector are provided. A specific embodiment of the method includes: determining position information of a target position in a to-be-projected area; determining a scanning power of scanning the target position based on a pre-generated scanning power table and the position information of the target position, the scanning power table used for characterizing a corresponding relationship between the scanning power and the position information; adjusting a tilt angle of a reflector to change the tilt angle of the reflector, and to enable a light beam incident onto the reflector to be reflected to the target position; and controlling a light source to emit the light beam to the reflector at the determined scanning power. The embodiment has achieved scanning a to-be-projected area at an adjustable scanning power.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: March 31, 2020
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventor: Chen Zhao
  • Patent number: 10602101
    Abstract: A light source module includes an excitation light source providing an excitation light beam; a light guiding apparatus disposed on a light path of the excitation light beam and; a light collecting element disposed on a first transmission path and a second transmission path; a light homogenizing element disposed on the first transmission path; and a wavelength conversion element disposed on the second transmission path. The light guiding apparatus swings sequentially along a reference axis of the light path. Through the swinging action, the excitation light beam is transmitted along the first transmission path and the second transmission path at a first timing and a second timing, respectively. Then, the excitation light beam passes through the light collecting element. The light homogenizing element receives the excitation light beam. The wavelength conversion element converts the excitation light beam passing through the light collecting element into an excited light beam.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 24, 2020
    Assignee: Coretronic Corporation
    Inventors: Yi-Hsuang Weng, Chih-Hsien Tsai, Haw-Woei Pan
  • Patent number: 10587851
    Abstract: A projector includes a projection section having a light source, a light modulation device and a projection lens, and modulating light emitted from the light source with the light device, and then projecting the light modulated through the projection lens to project a projection image on a screen, a projection optical system drive section for changing a projection position of the projection image, a projection control section for making the light device display a reduced input image, and a shift control section for controlling the projection optical system drive section wherein the projection position of the projection image when displaying the reduced input image at a central display position and at a shift display position become the same when the projection control section changes the display position of the reduced input image from the central display position to the shift display position in a display area of the light device.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 10, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinichi Tsukagoshi
  • Patent number: 10578866
    Abstract: According to one embodiment, a display device includes a polarization separation element which transmits first polarized light, and reflects second polarized light, a first optical modulation unit which displays a first image by using transmitted light, a second optical modulation unit which displays a second image by using reflected light, and a projector which projects the first image onto a first projection area of a projection plane, and projects the second image onto a second projection area different from the first projection area of the projection plane.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventors: Tatsuya Yata, Naoyuki Takasaki
  • Patent number: 10578958
    Abstract: A first laser module generates a first light beam along a first light path. A second laser module generates a second light beam along a second light path. A light-guiding module reflects the first light beam to generate a first reflected light beam along a third light path and reflects the second light beam to generate a second reflected light beam along a fourth light path. A wavelength conversion layer of the wavelength conversion device is stimulated by the first reflected light beam to generate a stimulated light beam against the first reflected light beam. The light-guiding module directs the stimulated light beam to the fourth light path. A light rod integrates the stimulated light beam and the second reflected light beam to generate an integrated light beam.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 3, 2020
    Assignee: Qisda Corporation
    Inventors: Tien-Hsueh Wu, Ching-Shuai Huang
  • Patent number: 10571792
    Abstract: A projection device for forming an image frame on a projection screen includes a first illumination system for emitting an illumination beam, a second illumination system for emitting an ultraviolet beam, a first light valve located on a transmission path of the illumination beam and for converting the illumination beam into a visible image beam, a lens located on a transmission path of the visible image beam and the ultraviolet beam and for projecting the visible image beam onto the projection screen to form an image frame area and projecting the ultraviolet beam onto the projection screen to form an opaque area, and a processor electrically connected to the first illumination system and the second illumination system and for controlling the first illumination system to emit the illumination beam and controlling the second illumination system to emit the ultraviolet beam. The image frame area partially overlaps the opaque area.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 25, 2020
    Assignee: Coretronic Corporation
    Inventors: Haw-Woei Pan, Chih-Hsien Tsai, Yi-Hsuang Weng, Chi-Tang Hsieh, Jo-Han Hsu
  • Patent number: 10571332
    Abstract: A light filter includes a plurality of spectrum modulation portions, each having a different thicknesses or a different mixing ratio of materials thereof. Each of the plurality of spectrum modulation portions has a different transmittance spectrum.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: February 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyungsang Cho, Chanwook Baik
  • Patent number: 10564536
    Abstract: A projection screen for receiving a visible image beam and an ultraviolet beam from a projection device is provided. The projection screen includes a substrate, an anti-reflection layer and an anti-ultraviolet layer. The substrate includes a first surface adjacent to the projection device, a second surface away from the projection device and opposite to the first surface, a scattering reflection layer disposed between the first surface and the second surface, and an ultraviolet absorption layer disposed between the first surface and the second surface. The scattering reflection layer scatters and reflects the visible image beam. The ultraviolet absorption layer absorbs the ultraviolet beam so as to be changed from a transparent state to an opaque state. The anti-reflection layer is disposed on the first surface. The anti-ultraviolet layer is disposed at the second surface. The ultraviolet absorption layer is located between the scattering reflection layer and the anti-ultraviolet layer.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 18, 2020
    Assignee: Coretronic Corporation
    Inventors: Haw-Woei Pan, Chih-Hsien Tsai, Yi-Hsuang Weng, Chi-Tang Hsieh, Jo-Han Hsu
  • Patent number: 10560250
    Abstract: The invention relates to methods for communicating within a communication system when re-configured from a source to a target uplink/downlink configuration. The invention is also providing mobile station for performing these methods, and computer readable media the instructions of which cause the mobile station to perform the methods described herein. Specifically, the invention suggests to perform PUSCH transmissions in response to Downlink Control Information, DCI, transmissions such that the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N?6, a predefined uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received during subframes N?5 to N?1; and the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N onward.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 11, 2020
    Assignee: Sun Patent Trust
    Inventors: Alexander Golitschek Edler von Elbwart, Hidetoshi Suzuki, Lilei Wang