Patents by Inventor Yoshiaki Horikawa
Yoshiaki Horikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10534317Abstract: A display method lets a display beam to propagate in a transparent substrate while internally reflected repeatedly and lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected, thereby emitting display beams from almost entirety of a surface of the transparent substrate. The display beam is produced holographically. A display apparatus includes a spatial phase modulator that produces a display beam, a transparent substrate in which the display beam is internally reflected repeatedly to propagate in it, and a splitter that lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected.Type: GrantFiled: March 26, 2018Date of Patent: January 14, 2020Assignee: OLYMPUS CORPORATIONInventor: Yoshiaki Horikawa
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Publication number: 20180217555Abstract: A display method lets a display beam to propagate in a transparent substrate while internally reflected repeatedly and lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected, thereby emitting display beams from almost entirety of a surface of the transparent substrate. The display beam is produced holographically. A display apparatus includes a spatial phase modulator that produces a display beam, a transparent substrate in which the display beam is internally reflected repeatedly to propagate in it, and a splitter that lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected.Type: ApplicationFiled: March 26, 2018Publication date: August 2, 2018Inventor: Yoshiaki Horikawa
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Patent number: 9946080Abstract: There is provided a practically useful display method that allows viewers to see in-focus images easily. The method includes the steps of providing a lens array including a plurality of lenses, providing display areas at least one of which corresponds to each of the plurality of lenses, displaying partial images of an original image in the display areas respectively, the partial images being different from one another but partially including a same image portion, forming a bundle of beams by beams respectively emergent from the plurality of lenses equivalently, forming virtual images of the respective partial images displayed in the respective display areas by the respective lenses, and forming a single virtual image by superposing the virtual images of the partial images displayed in the respective corresponding display areas formed by the plurality of lenses.Type: GrantFiled: November 8, 2016Date of Patent: April 17, 2018Assignee: OLYMPUS CORPORATIONInventors: Yoshiaki Horikawa, Toshiaki Suzuki
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Patent number: 9843778Abstract: Provided is an image display device including: a light source part (200) for emitting coherent light; and a plurality of phase shift elements (301) arranged in two-dimensional directions, the device further including a phase shift part (300) for scanning the wavefront of the coherent light from the light source part (200) in two-dimensional directions, in which light is scanned in the two-dimensional directions by a phased array to thereby allow an observer to observe an image.Type: GrantFiled: February 3, 2016Date of Patent: December 12, 2017Assignee: OLYMPUS CORPORATIONInventors: Yoshiaki Horikawa, Eiji Yamamoto, Kanto Miyazaki
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Publication number: 20170052380Abstract: There is provided a practically useful display method that allows viewers to see in-focus images easily. The method includes the steps of providing a lens array including a plurality of lenses, providing display areas at least one of which corresponds to each of the plurality of lenses, displaying partial images of an original image in the display areas respectively, the partial images being different from one another but partially including a same image portion, forming a bundle of beams by beams respectively emergent from the plurality of lenses equivalently, forming virtual images of the respective partial images displayed in the respective display areas by the respective lenses, and forming a single virtual image by superposing the virtual images of the partial images displayed in the respective corresponding display areas formed by the plurality of lenses.Type: ApplicationFiled: November 8, 2016Publication date: February 23, 2017Applicant: OLYMPUS CORPORATIONInventors: Yoshiaki HORIKAWA, Toshiaki SUZUKI
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Publication number: 20160378062Abstract: Hologram data is generated by dividing hologram data generation area, in which hologram data is generated, into a plurality of element sub-areas, computing base hologram data that pertains to an area smaller than the hologram data generation area and that is to form an optical wavefront of an image to be reconstructed, and assigning, as hologram data of the element sub-areas4, hologram data of an entirety or a part of the area to which the base hologram data pertains. Consequently, the amount of operations for generating a hologram pattern in holographic display is reduced.Type: ApplicationFiled: September 6, 2016Publication date: December 29, 2016Applicant: OLYMPUS CORPORATIONInventors: Daichi WATANABE, Yoshiaki HORIKAWA
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Publication number: 20160349508Abstract: A display apparatus includes a spatial phase modulator that forms a display light beam, a transparent substrate in which the display light beam propagates by repeated internal reflection, a bifurcation that emits a portion of the display light beam outside the transparent substrate each time the display light beam undergoes the internal reflection, and a light beam introduction optical system including a beam splitter that guides an illumination light beam to the spatial phase modulator and guides the display light beam formed by the spatial phase modulator to the transparent substrate. The spatial phase modulator forms the display light beam holographically by diffraction of the illumination light beam.Type: ApplicationFiled: August 9, 2016Publication date: December 1, 2016Applicant: OLYMPUS CORPORATIONInventor: Yoshiaki HORIKAWA
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Publication number: 20160156885Abstract: Provided is an image display device including: a light source part (200) for emitting coherent light; and a plurality of phase shift elements (301) arranged in two-dimensional directions, the device further including a phase shift part (300) for scanning the wavefront of the coherent light from the light source part (200) in two-dimensional directions, in which light is scanned in the two-dimensional directions by a phased array to thereby allow an observer to observe an image.Type: ApplicationFiled: February 3, 2016Publication date: June 2, 2016Inventors: Yoshiaki Horikawa, Eiji Yamamoto, Kanto Miyazaki
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Publication number: 20150241844Abstract: A display method lets a display beam to propagate in a transparent substrate while internally reflected repeatedly and lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected, thereby emitting display beams from almost entirety of a surface of the transparent substrate. The display beam is produced holographically. A display apparatus includes a spatial phase modulator that produces a display beam, a transparent substrate in which the display beam is internally reflected repeatedly to propagate in it, and a splitter that lets the display beam partly emit out of the transparent substrate every time the display beam is internally reflected.Type: ApplicationFiled: March 4, 2015Publication date: August 27, 2015Inventor: Yoshiaki Horikawa
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Patent number: 8891030Abstract: A display method of forming an image by using a plurality of pixels includes projecting light beams from the plurality of pixels on a pupil of an eye of an observer, and each diameter of the light beams which are incident on the pupil is smaller than a diameter of the pupil. Moreover, a display apparatus which displays an image having a plurality of pixels includes a micro lens array having a lens corresponding to each pixel, and a plurality of light exit points is formed corresponding to each pixel. Furthermore, an electronic equipment has the display apparatus installed thereon.Type: GrantFiled: April 5, 2012Date of Patent: November 18, 2014Assignee: Olympus CorporationInventor: Yoshiaki Horikawa
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Patent number: 8619367Abstract: In a display which includes a plurality of light exit point groups, and a plurality of lenses which project the plurality of light exit point groups, the light exit point group includes at least one light exit point, and each lens is disposed such that an image of the light exit point group is projected to be overlapped, and projected images of the plurality of lenses are formed on a pupil of an eye of an observer by making overlapping of light exit points in the light exit point group which have been overlapped upon being projected by the lenses, incident on a pupil of the eye of the observer.Type: GrantFiled: March 14, 2011Date of Patent: December 31, 2013Assignee: Olympus CorporationInventor: Yoshiaki Horikawa
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Patent number: 8525957Abstract: In a display apparatus which includes a liquid crystal layer, two electrode layers which sandwich the liquid crystal layer, and a black matrix, and the black matrix has a plurality of light exit points which transmit light, and a light exit point group includes at least one light exit point, and the display apparatus has a plurality of lenses which project the light exit point group, and the plurality of lenses project images of the light exit point groups to be overlapped, and projected images of the plurality of lenses are formed on a retina of an eye of an observer by inducing overlapping of light exit points in the light exit point group which have been overlapped upon being projected by the lenses, on a pupil of the eye of the observer.Type: GrantFiled: March 29, 2011Date of Patent: September 3, 2013Assignee: Olympus CorporationInventor: Yoshiaki Horikawa
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Publication number: 20120200810Abstract: A display method of forming an image by using a plurality of pixels includes projecting light beams from the plurality of pixels on a pupil of an eye of an observer, and each diameter of the light beams which are incident on the pupil is smaller than a diameter of the pupil. Moreover, a display apparatus which displays an image having a plurality of pixels includes a micro lens array having a lens corresponding to each pixel, and a plurality of light exit points is formed corresponding to each pixel. Furthermore, an electronic equipment has the display apparatus installed thereon.Type: ApplicationFiled: April 5, 2012Publication date: August 9, 2012Inventor: Yoshiaki Horikawa
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Patent number: 8238019Abstract: The present invention discloses a projection apparatus comprising: a light source for emitting illumination light; a mirror device comprising a plurality of mirrors for generating an image by reflecting the illumination light toward a projecting direction by means of a deflecting operation; and a projection optical system which is placed in the optical axis of reflection light in the projecting direction of the illumination light incident to the mirror device and which projects the reflection light, wherein the optical axis of the illumination light incident to the mirror device and the optical axis of the reflection light in the projecting direction forms an angle that is larger than the expansion angle ? of the flux of the illumination light that satisfies NA=n*sin ?, where NA is the numerical aperture of the flux of the illumination light, and n is the reflectance.Type: GrantFiled: September 5, 2008Date of Patent: August 7, 2012Assignees: Silicon Quest Kabushiki-Kaisha, Olympus CorporationInventors: Taro Endo, Yoshihiro Maeda, Hirotoshi Ichikawa, Yoshiaki Horikawa, Fusao Ishii
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Publication number: 20120195519Abstract: There is provided a method of generating corrected image data and a display apparatus which is capable of displaying a pre-corrected image which is corrected in advance, which enables to carry out diopter adjustment for farsightedness due to old age at a practically sufficient level. In the method of generating corrected image data, the pre-corrected image data consists of amplitude information and phase information, is generated. The display apparatus includes a processing section which generates the pre-corrected image data consists of the amplitude information and the phase information, by a predetermined method of generating corrected image data, and a display section which controls and displays the amplitude information and the phase information of the corrected image data which has been generated.Type: ApplicationFiled: April 10, 2012Publication date: August 2, 2012Inventor: Yoshiaki Horikawa
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Publication number: 20110317272Abstract: In a display which includes a plurality of light exit point groups, and a plurality of lenses which project the plurality of light exit point groups, the light exit point group includes at least one light exit point, and each lens is disposed such that an image of the light exit point group is projected to be overlapped, and projected images of the plurality of lenses are formed on a pupil of an eye of an observer by making overlapping of light exit points in the light exit point group which have been overlapped upon being projected by the lenses, incident on a pupil of the eye of the observer.Type: ApplicationFiled: March 14, 2011Publication date: December 29, 2011Inventor: Yoshiaki Horikawa
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Publication number: 20110285936Abstract: In a display apparatus which includes a liquid crystal layer, two electrode layers which sandwich the liquid crystal layer, and a black matrix, and the black matrix has a plurality of light exit points which transmit light, and a light exit point group includes at least one light exit point, and the display apparatus has a plurality of lenses which project the light exit point group, and the plurality of lenses project images of the light exit point groups to be overlapped, and projected images of the plurality of lenses are formed on a retina of an eye of an observer by inducing overlapping of light exit points in the light exit point group which have been overlapped upon being projected by the lenses, on a pupil of the eye of the observer.Type: ApplicationFiled: March 29, 2011Publication date: November 24, 2011Inventor: Yoshiaki Horikawa
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Patent number: 8061854Abstract: The present invention provides a projection apparatus, comprising: a light source; at least one spatial light modulator for modulating illumination light from the light source by a plurality of pixel elements by using different modulation states; a light source control unit performing a modulation control of the light source; and a spatial light modulator control unit generating, from an input image signal, a control signal for driving the spatial light modulator, wherein: the light source control unit has a function of receiving data corresponding to the control signal generated by the spatial light modulator control unit, controlling a parameter of an emission pulse of the illumination light emitted from the light source, and thereby adjusting an emission intensity of the illumination light.Type: GrantFiled: September 4, 2008Date of Patent: November 22, 2011Assignees: Silicon Quest Kabushiki-Kaisha, Olympus CorporationInventors: Akira Shirai, Hirokazu Nishino, Yoshiaki Horikawa, Fusao Ishii
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Patent number: 8045244Abstract: Video image data is converted into spatial frequency information using Fourier transformation. The spatial frequency information is provided to an information display unit. The spatial frequency information as a phase distribution is displayed on the information display unit, light is irradiated onto the information display unit using a light source, and the amount of light that is irradiated by the light source is adjusted based on the video image data. And diffraction light, which is irradiated by the light source and modulated as the spatial frequency information by the information display unit, is projected onto a projecting unit.Type: GrantFiled: December 22, 2008Date of Patent: October 25, 2011Assignee: Olympus CorporationInventor: Yoshiaki Horikawa
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Patent number: 7976170Abstract: According to the present invention, a plurality of video image data are converted into individual spatial frequency information using Fourier transformation. The individual spatial frequency information is provided to a plurality of information display unit corresponding to the individual spatial frequency information. The spatial frequency information corresponding to the plurality of video image data is displayed on the plurality of information display unit, light is irradiated onto the plurality of information display unit using a plurality of light sources corresponding to the plurality of information display unit. The spatial frequency information that is displayed by the plurality of information display unit is projected by using diffraction light, and a plurality of video images are synthesized on projection surfaces.Type: GrantFiled: December 22, 2008Date of Patent: July 12, 2011Assignee: Olympus CorporationInventor: Yoshiaki Horikawa