Patents Examined by Bao-Luan Q Le
  • Patent number: 10568192
    Abstract: A discharge lamp drive device includes a discharge lamp driver configured to supply drive electric current to a discharge lamp having a first electrode and a second electrode, a control unit configured to control the discharge lamp driver; and a storage unit configured to store a plurality of drive patterns of the drive electric current. The control unit is configured to select one drive pattern from among the plurality of drive patterns based on machine learning, and implement the selected drive pattern. The control unit is configured to adjust a drive electric power supplied to the discharge lamp based on illumination level information relating to an illumination level of the discharge lamp, while performing switching among the drive patterns based on the machine learning, in a case where an inter-electrode voltage of the discharge lamp is larger than a given voltage value.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 18, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Junichi Suzuki, Masaru Kono
  • Patent number: 10531055
    Abstract: A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 7, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Barret Lippey
  • Patent number: 10514540
    Abstract: The disclosure provides a light source device and an image display device. The light source device includes a laser light source configured to emit laser light having a wavelength in a range from 635 nm to 645 nm inclusive, a temperature sensor configured to detect temperature around the light source device, and a laser control circuit configured to control the laser light source. The laser control circuit approximates, with use of a quartic expression, change in threshold current of the laser light source relative to temperature, and approximates, with use of a quadratic expression, change in slope efficiency of the laser light source relative to temperature, to obtain threshold current and slope efficiency of the laser light source corresponding to detection temperature of the temperature sensor, and controls the laser light source in accordance with the threshold current and the slope efficiency thus obtained.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 24, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akira Kurozuka, Yuta Yamamoto, Susumu Uragami, Hiroyuki Furuya
  • Patent number: 10509303
    Abstract: For a laser projection device, a dichroic component is disposed on a light emitting path of a laser array for receiving a first blue polarized light from the laser array. A 1/4 wave plate is disposed between a reflective component and the dichroic component and configured to receive the first blue polarized light from the dichroic component, generate a second blue polarized light, and emit the second blue polarized light to the reflective component; and further configured to receive the second blue polarized light reflected by the reflective component, generate a third blue polarized light, and emit the third blue polarized light to the dichroic component. The dichroic component is further configured to receive the third blue polarized light from the 1/4 wave plate and fluorescent light from a reflective fluorescent wheel, and output the third blue polarized light and the fluorescent light in a same light emitting direction.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: December 17, 2019
    Assignee: Qingdao Hisense Electronics Co., Ltd.
    Inventor: Wei Li
  • Patent number: 10503056
    Abstract: A projector includes a drive section adapted to move a projection lens, a projection section adapted to project image light through the projection lens, and a determination section adapted to determine whether or not the projection lens has been replaced based on a first position as a position of the projection lens at a first time point at which power supply to the projector is stopped, and a second position as a position of the projection lens at a second time point at which the power supply is started after the first time point.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 10, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yusuke Kudo
  • Patent number: 10493906
    Abstract: A vehicle puddle lamp assembly is provided herein. The vehicle puddle lamp assembly includes a housing having a housing retainer. A light source is supported by the housing. A cover is removably coupled to a base portion of the housing. An optical member is disposed between the housing and the cover. The optical member may include an image filter thereon. The image filter is configured to form a desired image pattern on a surface proximate the housing.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 3, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin Joseph Favero, Michael J. Gardynik, Steven Frank, Kevin A. Gustafson, Austin Murphy
  • Patent number: 10495956
    Abstract: A projector including an outer casing, a projection lens and a flexible sealing element is provided. The casing has a first opening. The projection lens is disposed in the casing and has a focusing portion, where the focusing portion is aligned to the first opening. The flexible sealing element is connected to a periphery of the first opening to seal the first opening. The focusing portion is connected to the flexible sealing element. When an external force is exerted to the flexible sealing element, the flexible sealing element is deformed and drives the focusing portion to move, so as to focus the projection lens.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: December 3, 2019
    Assignee: Coretronic Corporation
    Inventors: Chi-Chen Chen, Chia-Tien Chen
  • Patent number: 10479276
    Abstract: A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 19, 2019
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Chengang Ji, Kyu-Tae Lee, Songtao Wu, Debasish Banerjee
  • Patent number: 10451882
    Abstract: A head-mounted display (HMD) system includes an optical arrangement, a first image panel, a second image panel, and a central image panel located between the first and second image panels. The optical arrangement is reconfigurable between a first position and a second position that maintains first and second optical pathways of the first and second image panels, and the HMD system has a different form factor when the optical arrangement is in the second position as compared to the first position. The optical arrangement includes at least one segmented optical component, wherein segments of the segmented optical component are moveable relative to each other to reconfigure the optical arrangement between the first position and the second position. The segmented optical component may include one more lens assemblies, each with multiple lens segments that are rotatable relative to each other about a hinge structure.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 22, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Patent number: 10451961
    Abstract: An image display device includes an image display element, a light source, an illumination system, a projector system comprising a refractive optical system including a plurality of lens groups, and a mirror train including a curved mirror, a first focus structure configured to move the respective lens groups of the refractive optical system by different amounts along a normal line of the image display element, and a second focus structure configured to move the respective lens groups along the normal line of the image display element by different amounts from those of the first focus structure.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: October 22, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hibiki Tatsuno, Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka, Makoto Hirakawa
  • Patent number: 10447978
    Abstract: An image generation device has at least one light source, a field lens array, an array of image-forming elements, and a projection lens array. The array of image-forming elements is formed by superimposing a first pattern array and a second pattern array, which is formed identically to the first pattern array and is rotated relative to the first pattern array. A method is provided for producing the array of image-forming elements.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: October 15, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Marcel Sieler
  • Patent number: 10444612
    Abstract: A projection optical system is an optical system for projecting an image light flux formed in an image display element onto a projection surface, and includes a transmission optical system and a reflection optical system. The transmission optical system is located on an emission surface side of the image display element and includes a stop and a plurality of lenses. The reflection optical system includes a positive-power first mirror and a second mirror. Conditional Expression (1) is satisfied 0<TL/ft<10??(1) where ft is a focal length of the transmission optical system, and TL is a distance parallel to an optical axis of the transmission optical system from a position where the first mirror reflects a principal ray of the image light flux, to the image display element.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 15, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tsuneo Uchida, Katsu Yamada
  • Patent number: 10437056
    Abstract: A head-up display device virtually displays an image to be viewable by an occupant by projecting the image on a projection member located above an instrument panel of a vehicle in a vehicle upward direction. Assuming that a direction along an up-down direction of the vehicle when the image is virtually displayed is defined as a vertical direction of the image, the head-up display device includes a projector that projects an image as light polarized in a polarization direction intersecting the vertical direction of the image and a reflecting mirror that reflects and redirects the light of the image from the projector toward the projection member, on an optical path between the projector and the projection member, and has a difference between S polarization reflectance and P polarization reflectance for the light from the projector.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: October 8, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takahiro Nambara, Jyunya Yokoe
  • Patent number: 10416449
    Abstract: A display apparatus includes: a housing including a top plate having an opening and two opposed side plate units; a display member capable of moving through the opening; a shutter configured to open and close the opening; and a moving mechanism provided on at least one of the two side plate units, the moving mechanism including a first slide member and a second slide member each moving along the at least one side plate unit and a transmission member transmitting an amount of movement of the first slide member to the second slide member while increasing the amount of movement, wherein the shutter moves according to movement of the second slide member.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 17, 2019
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Kazuhiro Saitou, Kenji Kawamura, Shinji Sato, Tomohiro Adachi, Toru Suzuki
  • Patent number: 10404956
    Abstract: A projection display device and a light source control method thereof capable of improving visibility of specific information without increasing a manufacturing cost and a power consumption amount are provided. An HUD includes a plurality of light sources that emit light beams with different colors, a projection unit that projects light according to image information among the light beams emitted from the plurality of light sources onto a combiner, and a light source control unit that sequentially emits lights from the plurality of respective light sources according to a predetermined light emission amount pattern. The light source control unit performs control for causing at least one of the light sources other than a specific light source among the plurality of light sources to emit light with a smaller light emission amount than a light emission amount of the specific light.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: September 3, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Ito, Koudai Fujita, Kenji Ito
  • Patent number: 10394023
    Abstract: A head-up display device virtually displays an image to be viewable by an occupant by projecting the image on a projection member located above an instrument panel of a vehicle in a vehicle upward direction. Assuming that a direction along an up-down direction of the vehicle when the image is virtually displayed is defined as a vertical direction of the image, the head-up display device includes a projector that projects an image as light polarized in a polarization direction intersecting the vertical direction of the image and a reflecting mirror that reflects and redirects the light of the image from the projector toward the projection member, on an optical path between the projector and the projection member, and has a difference between S polarization reflectance and P polarization reflectance for the light from the projector.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: August 27, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takahiro Nambara, Jyunya Yokoe
  • Patent number: 10386708
    Abstract: A light source apparatus includes a first light source module and a second light source module. The first light source module emits first emission light. The second light source module includes a light source unit that generates second emission light, and a switch unit that switches a position of an emission optical axis of the second emission light generated by the light source unit between a first optical axis position for emitting synthetic light of the first emission light and the second emission light and a second optical axis position for separating the first emission light and the second emission light for emission.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 20, 2019
    Assignee: SONY CORPORATION
    Inventor: Yoshihisa Aikoh
  • Patent number: 10378887
    Abstract: A meta projector includes a light source array configured to emit light along an optical path. The light source array includes a first light-emitting array including a plurality of first light-emitting configured to emit first light having a first set of light properties and a second light-emitting array including a plurality of second light-emitting elements configured to emit a second light having a second set of light properties, the second set of light properties different from the first set of light properties. The meta projector includes a meta-structure layer aligned with the optical path. The meta projector includes a plurality of nanostructures having a sub-wavelength shape dimension that is smaller than a wavelength of light emitted from the light source array. The meta-structure layer is configured to differently modulate the first light and the second light in relation to each other.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byunghoon Na, Jangwoo You, Seunghoon Han
  • Patent number: 10379431
    Abstract: A projection apparatus including an illumination system, a light valve, and an image-forming system is provided. The illumination system includes a first dichroic unit, a second dichroic unit, a third dichroic unit, two wavelength conversion modules, two light sources respectively emitting a first beam and a second beam, and an excitation light source module emitting an excitation beam. The first dichroic unit and the second dichroic unit are disposed on a transmission path of the excitation beam. The two wavelength conversion modules respectively convert the corresponding partial excitation beam coming from the first dichroic unit and the second dichroic unit into two converted beams. The light valve converts the first beam, the two converted beams, and the second beam coming from the third dichroic unit into an image beam. The image-forming system is disposed on a transmission path of the image beam.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: August 13, 2019
    Assignee: Coretronic Corporation
    Inventors: Hao-Wei Chiu, Ko-Shun Chen, Chi-Hsun Wang, Chi-Tang Hsieh
  • Patent number: 10379435
    Abstract: A rotatable stroboscopic animation device with a rotatable base portion and at least one light source. An angular-velocity-dependent flashing system flashes the at least one light source according to a predetermined flash mode dependent on the angular velocity of the base portion to produce coherent, automatic stroboscopic animation of images retained by the base portion. The flashing system can comprise an angular velocity determination system in cooperation with an illumination system. Angular velocity can be determined by an orienting system, such as a compass, in combination with a sampling system, a gyroscope, or a rotational sensor. A flash mode selection mechanism, which can be manual or automatic, permits a selection of a flash mode from among a plurality of flash modes. A manual flash mode selection mechanism can be formed by relatively pivotable upper and lower disks of the base portion. Animation disks can have indications of predetermined flash modes.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: August 13, 2019
    Inventors: Shai Seger, Rufus Butler Seder, Robert Bruce Fuhrer, Gyora Mihaly Pal Benedek