Patents Examined by Thomas K. Pham
  • Patent number: 10925485
    Abstract: For reducing a time utilized in an AO process, provided is a deformable mirror system, including: a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal; a light wavefront measurement apparatus configured to measure a light wavefront shape of reflected light from the deformable mirror; a conversion factor calculation apparatus configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal; a shape difference calculation apparatus configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement apparatus and a light wavefront shape calculated from the input signal; and a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Takeno, Kaishi Ohashi
  • Patent number: 10928572
    Abstract: The present specification relates to a method for manufacturing a polarizing plate and a polarizing plate. More particularly, the present specification relates to a method for manufacturing a polarizing plate locally having a depolarization region, and a polarizing plate.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: February 23, 2021
    Inventors: Byung Sun Lee, Sung Hyun Nam, Kyun Il Rah
  • Patent number: 10921551
    Abstract: A moving speed control method of an optical element switching device including a fixing member, a moveable member having a plurality of recess portions configured to hold one or more optical elements, a driving device supported to the fixing member and configured to move the moveable member, and an engaging mechanism supported to the fixing member and configured to be engaged to the recess portion to thereby position each of the one or more optical elements on an optical axis, the moving speed control method includes: starting to move the moveable member from a state where the recess portion is engaged to the engaging mechanism; accelerating a moving speed of the moveable member; decelerating the moving speed when the engaging mechanism is to be engaged to the next recess portion; and making the moving speed zero when the engaging mechanism is engaged to the recess portion.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 16, 2021
    Assignee: MITUTOYO CORPORATION
    Inventor: Takahiro Ito
  • Patent number: 10914919
    Abstract: An optical imaging lens assembly includes seven lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is convex in a paraxial region thereof, and at least one surface among the object-side surfaces and the image-side surfaces of the seven lens elements has at least one inflection point.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: February 9, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Hsin-Hsuan Huang
  • Patent number: 10908416
    Abstract: Provided is a distortion correction method for an image pickup mode in which an image pickup is performed with an image pickup area, whose diagonal length is Ib, of an image pickup element which receives light from an optical system, an expression, 1.05<Ia/Ib, being satisfied in a case where a distortion correction is not performed, where Ia represents a diagonal length of an effective pixel area of the image pickup element, wherein distortion correction is performed for an image having a positive distortion so that image information positioned at an image height of Ic/2 is positioned at an image height of Ib/2, and so that a conditional expression, 1.0<Ic/Ib, is satisfied.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: February 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuyuki Miyazawa
  • Patent number: 10908405
    Abstract: Provided herein are systems and methods for multi-color imaging using a microscope system. The microscope system can have a relatively small size compared to an average microscope system. The microscope system can comprise various components configured to reduce or eliminate image artifacts such as chromatic aberrations and/or noise from stray light that can occur during multi-color imaging. The components can be configured to reduce or eliminate the image artifacts, and/or noise without substantially changing the size of the microscope system.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 2, 2021
    Assignee: INSCOPIX, INC.
    Inventors: Mark Trulson, Koen Visscher, Kevin E. Newman
  • Patent number: 10908431
    Abstract: Tapered cavity structures disposed within a stratum may be configured as a spectral component splitters, a spectral component combiners, and various combinations thereof including a reflective mode of operation. The tapered cavities have an aperture at their wider and a tip at the narrower, and are dimensioned such that multi-spectral radiant energy admitted into the cavity via the aperture would depart the tapered cavity via its side periphery at a depth and/or direction dependent on its frequency and/or its polarization, and that a plurality of spectral components admitted to the cavities via the its peripheral side or sides will be mixed and emitted via the aperture. Reflective type structures where portions of radiant energy is selectively absorbed and other portions are reflected are also considered. Differing stratums are disclosed. Applications of the tapered cavities in a stratum are also disclosed.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: February 2, 2021
    Inventor: Shalom Wertsberger
  • Patent number: 10908392
    Abstract: A photographing optical lens assembly includes lens elements including, in order from an object to an image side, a first lens group, a second lens group and a third lens group. The first lens group includes a first lens element and a second lens element. The second lens group includes a third lens element, a fourth lens element and a fifth lens element. The third lens group includes a sixth lens element, a seventh lens element and an eighth lens element. The first lens element has positive refractive power. The seventh lens element has an object-side surface and an image-side surface being both aspheric. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein both an object-side surface and the image-side surface thereof are aspheric, and the image-side surface of the eighth lens element has at least one reflection point.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: February 2, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Hsin-Hsuan Huang
  • Patent number: 10901291
    Abstract: A head-mounted display (HMD) presented herein comprises an electronic display and an optical assembly. The electronic display is configured to emit image light. The optical assembly is configured to direct the image light to an eye-box of the HMD corresponding to a location of a user's eye. The optical assembly includes a multifocal optical element, e.g., a bifocal optical element. A first portion of the multifocal optical element has a first optical power that is associated with a first image plane. The second portion of the multifocal optical element has a second optical power different than the first optical power, the second portion associated with a second image plane.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Yusufu Njoni Bamaxam Sulai, Brian Wheelwright
  • Patent number: 10884314
    Abstract: A switchable reflective colour filter is provided for use in a display device. The switchable reflective colour filter includes a plurality of sub-pixel regions of at least two colour types, each including a layer of phase change material which is switchable between a first state and a second state, the first and second states being two solid but structurally distinct states having different optical properties. Each sub-pixel region further includes two electrode layers, a mirror layer, and a spacer layer or air gap. The phase change material layer in each sub-pixel region is positioned between the two electrode layers, and separated from the mirror layer by the spacer layer or air gap. The switchable reflective colour filter may be incorporated into a display device including a pixelated switchable absorber. A luminance of coloured light reflected from any of the sub-pixel regions is controllably attenuated by the pixelated switchable absorber.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: January 5, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Benjamin John Broughton, Diego Gallardo, Edward David Heywood-Lonsdale, Hywel Hopkin
  • Patent number: 10881295
    Abstract: An ophthalmic system of an embodiment includes a slit lamp microscope and an information processing apparatus. The slit lamp microscope includes an image acquisition device that acquires a three dimensional image by photographing a subject's eye, and a first communication device that transmits the three dimensional image to the information processing apparatus. The information processing apparatus includes a second communication device that receives the three dimensional image transmitted by the first communication device, a display controller that displays a first image based on the three dimensional image on a display device, a partial region designation processor that designates a partial region of the first image, and a rendering processor that renders the three dimensional image based on the partial region to construct a second image. The display controller displays the second image on the display device.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 5, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Hisashi Tsukada, Yasufumi Fukuma
  • Patent number: 10886613
    Abstract: Techniques are described for forming a gradient index (GRIN) lens for propagating an electromagnetic wave comprising receiving, by a manufacturing device having one or more processors, a model comprising data specifying a plurality of layers, wherein at least one layer of the plurality of layers comprises an arrangement of one or more volume elements comprising a first dielectric material and a second dielectric material, wherein the at least one layer of the plurality of layers has a dielectric profile that is made up of a plurality of different effective dielectric constants of the volume elements in the layer, and generating, with the manufacturing device by an additive manufacturing process, the GRIN lens based on the model.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 5, 2021
    Inventors: Ronald D. Jesme, Thomas J. Brace, Justin M. Johnson
  • Patent number: 10884260
    Abstract: Three-dimensional display systems may include polarized displays that polarize light emitted from a first set of areas of the display with a first polarization for a first eye of the viewer and that polarizes light emitted from a second set of areas of the display with a second polarization for a second eye of the viewer. This may result in dark areas being perceived by a viewer when viewed through polarized 3D glasses. Systems and technologies according to this disclosure may include 3D glasses that have a lenses configured to redirect a portion of incoming light in a first axis to at least partially illuminate the dark areas.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 5, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert Arthur Sprague, Kari Juhani Rinko
  • Patent number: 10884215
    Abstract: Provided are a lens driving device, a camera device, and an electronic apparatus that are capable of smoothly guiding a lens support. A lens driving device (10) includes a lens support (22) configured to support a lens, a frame member (30) surrounding a periphery of the lens support (22), and a plurality of guiding mechanisms (52a to 52a) configured to guide the lens support (22) relative to the frame member (30) in a freely movable manner. Each of the plurality of guiding mechanisms (52a to 52d) includes a first guiding portion (62a to 62d) formed in the frame member (30), a second guiding portion (64a to 64d) formed in the lens support (22), and balls (24a to 24d) arranged between the first guiding portion (62a to 62d) and the second guiding portion (64a to 64d). The first guiding portion (62b) is formed with use of a first frame member (30a) and a second frame member (30b) that are separate members.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 5, 2021
    Assignee: New Shicoh Technology Co., Ltd.
    Inventors: Li-Te Kuo, Ying-Chi Cho
  • Patent number: 10880963
    Abstract: An approach for controlling a light fixture comprising one light source and 3 different color filters, where the color filters can be arranged in a number of positions in relation to one another and in relation the light. The method comprises the steps of receiving a color parameter relating to the position of the color filters and a color temperature parameter relating to the color temperature of the light, obtaining a resulting color based on color parameter, the color temperature parameter and spectral characteristics of the filters, obtaining color filter position parameters indicating the position of the filters based on the resulting color, the spectral characteristics of the filters and spectral characteristic of said light; and arranging the color filters in relation to one another and in relation to said light based on color filter parameters.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: December 29, 2020
    Assignee: HARMAN PROFESSIONAL DENMARK APS
    Inventor: Jesper Torsvik Toft
  • Patent number: 10877250
    Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged on an optical axis from an object side to an image side. The first lens is a meniscus lens having a negative refractive power. The second lens has a positive refractive power. The third lens has a positive refractive power, and has a convex image-side surface. The fourth lens has a positive refractive power. The fifth lens has a negative refractive power, and has a concave image-side surface. The lens assembly is formed compact, and has wide viewing angle and telecentric optical design.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: December 29, 2020
    Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.
    Inventor: Chih-Peng Wang
  • Patent number: 10871661
    Abstract: Certain embodiments disclosed herein include lenses for eyewear with a molded wafer and a molded clear resin lens component integrated onto a surface of the molded wafer. The molded wafer can include an optical filter that enhances one or more properties of filtered light. The optical filter can be, for example, a contrast-enhancing, color-enhancing, and/or chroma-enhancing filter. The clear resin lens component can be shaped such that the lenses have optical power. In some embodiments, the molded wafer is integrated onto a surface of a polarizing wafer.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: December 22, 2020
    Assignee: Oakley, Inc.
    Inventors: Ryan Saylor, Benjamin J. Meunier
  • Patent number: 10852515
    Abstract: An optical imaging system includes a first lens having a concave image-side surface, a second lens having a concave image-side surface, and a third lens having a positive refractive power. The optical imaging system includes a fourth lens having a positive refractive power and a concave object-side surface, a fifth lens, a sixth lens having a positive refractive power, and a seventh lens having a concave object-side surface. The first lens to the seventh lens are sequentially disposed at intervals from an object side toward an imaging plane.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: December 1, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Il Yong Park
  • Patent number: 10852546
    Abstract: A head mounted display and a multiple depth imaging apparatus thereof are provided. The imaging apparatus includes a beam splitting device, a first display, a second display, a third display and a lens set. The beam splitting device has a first reflective surface, a second reflective surface and a transmissive surface. The first display projects a first image to the first reflective surface. The second display projects a second image to the transmissive surface. The third display projects a third image to the second reflective surface. The lens set is disposed between the beam splitting device and a target area. The first image, second image and third image are respectively imaging on a first imaging surface, a second imaging surface and a third imaging surface, and distances between the target area and the first, second and third imaging surfaces are different.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: December 1, 2020
    Assignee: HTC Corporation
    Inventors: Iok Kan Choi, Ling-Yi Ding, Yu-Heng Chen, Po-Sen Yang
  • Patent number: 10845573
    Abstract: A three-piece compact optical lens system includes, in order from the object side to the image side: a flat panel assembly made of glass, a first lens element with a negative refractive power having an object-side surface being concave near an optical axis; a stop; a second lens element with a positive refractive power having an object-side surface being convex near the optical axis and an image-side surface being convex near the optical axis; and a third lens element with a positive refractive power. Such a system can not only effectively collect light at a large angle, receive a wider range of images and achieve identification effects within very short distances, but also can reduce the distance between an object and the three-piece compact optical lens system, reduce the volume effectively and maintain its miniaturization.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 24, 2020
    Assignee: NEWMAX TECHNOLOGY CO., LTD.
    Inventor: Ching-Yun Huang