Patents by Inventor Akio Machida
Akio Machida 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: 11966054Abstract: A display device includes a frame that includes a front portion, temple portions, and a pad portion, and is mounted on head of an observer, and an image display device attached to the frame. The image display device includes an image forming device, and an optical device on which light emitted from the image forming device is incident and from which the light is emitted toward the observer. One end portion of the optical device is fixed to a temple portion side of the front portion. Other end portion of the optical device is on a pad portion side of the front portion. A light shielding member that prevents external light from being incident on the other end portion of the optical device from above the other end portion of the optical device is attached to the pad portion side of the front portion.Type: GrantFiled: April 26, 2019Date of Patent: April 23, 2024Assignee: SONY CORPORATIONInventors: Akio Machida, Misaki Shimizu, Mitsuru Akahori, Nobuhiro Suzuki
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Publication number: 20230258922Abstract: A display device, a method, and a computer-readable medium. The display device includes a layer including a first region and a second region, wherein the first region and the second region are configured to be visible to a user of the display device; and circuitry configured: to control displaying a computer generated image on an optical device overlapping the layer and to control a first transmittance of the first region of the layer to be lower than a second transmittance of the second region of the layer such that: a visibility, through the first region, of the computer generated image is increased and a visibility, through the second region, of an environment opposite the user relative to the display device is higher than a visibility, through the first region, of the environment opposite the user relative to the display device.Type: ApplicationFiled: April 21, 2023Publication date: August 17, 2023Applicant: Sony Group CorporationInventor: Akio Machida
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Publication number: 20230204960Abstract: To provide an optical member that enables a light guiding plate to be firmly fixed with certainty to a rim portion using an adhesive. An optical member of the present disclosure that guides light that enters from an image forming apparatus such that the light exits the optical member to be headed for an observer, includes a light guiding plate 41 that is formed of a resin plate 41?, a first deflection mechanism 42, and a second deflection mechanism 43. Light that enters the light guiding plate 41 from the image forming apparatus is deflected by the first deflection mechanism 42, is totally reflected within the light guiding plate 41 to propagate through the light guiding plate 41, is then deflected by the second deflection mechanism 43, and exits the light guiding plate 41 to be headed for the observer. The light guiding plate 41 includes a protrusion 51 that extends from a portion of a lateral surface of the light guiding plate 41.Type: ApplicationFiled: June 2, 2021Publication date: June 29, 2023Inventors: NOBUHIRO SUZUKI, AKIO MACHIDA, TAKUJI YOSHIDA
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Patent number: 11656459Abstract: A display apparatus includes: (i) a glasses-type frame that is mounted on the head of an observer; and (ii) an image display device that is attached to the frame, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts an amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, and the light control device includes two opposite transparent substrates, electrodes that are provided on the substrates, and an electrophoretic dispersion liquid that is sealed between the two substrates.Type: GrantFiled: September 28, 2015Date of Patent: May 23, 2023Assignee: SONY CORPORATIONInventors: Akio Machida, Kenichi Takahashi, Hidehiko Takanashi, Kenji Suzuki
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Publication number: 20220214550Abstract: A display apparatus includes a frame 10, a right-eye image display apparatus 20R, and a left-eye image display apparatus 20L, each of the image display apparatuses including an image forming apparatus 30 and an optical apparatus 40, the optical apparatus 40 including a light guiding plate 41, a first deflection mechanism 42, and a second deflection mechanism 43, in which an image coming from the image forming apparatus 30 enters the first deflection mechanism 42, is deflected by the first deflection mechanism 42, is guided through the light guiding plate 41, enters the second deflection mechanism 43, is deflected by the second deflection mechanism 43, and enters a pupil 51 of an observer 50; and an image that is formed by the right-eye image display apparatus 20R and an image that is formed by the left-eye image display apparatus 20L are not fused with each other.Type: ApplicationFiled: April 15, 2020Publication date: July 7, 2022Inventor: AKIO MACHIDA
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Patent number: 11333878Abstract: A display device, a method, and a computer-readable medium. The display device includes a layer including a first region and a second region, wherein the first region and the second region are configured to be visible to a user of the display device; and circuitry configured: to control displaying a computer generated image on an optical device overlapping the layer and to control a first transmittance of the first region of the layer to be lower than a second transmittance of the second region of the layer such that: a visibility, through the first region, of the computer generated image is increased and a visibility, through the second region, of an environment opposite the user relative to the display device is higher than a visibility, through the first region, of the environment opposite the user relative to the display device.Type: GrantFiled: July 16, 2020Date of Patent: May 17, 2022Assignee: Sony CorporationInventor: Akio Machida
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Patent number: 11215896Abstract: It is an object of the present invention to provide a display apparatus having a configuration and a structure that enable virtual images to be observed by an observer to exhibit high contrast, and enable the observer who uses the display apparatus to safely act in a real environment while reliably recognizing an external environment. A display apparatus of the present invention includes: a frame to be mounted to a head of an observer; an image display apparatus attached to the frame; and a dimming apparatus 700. The image display apparatus includes an image forming apparatus, and an optical apparatus 120 having a virtual-image forming region 701 in which virtual images are formed. The optical apparatus 120 overlaps with at least a part of the dimming apparatus 700.Type: GrantFiled: August 2, 2017Date of Patent: January 4, 2022Assignee: Sony CorporationInventors: Koji Kadono, Akio Machida
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Patent number: 11061231Abstract: To provide a display device in which the brightness of the image viewed by the observer is bright, and the brightness of the image is as uniform as possible. The display device according to the present invention includes a frame 10 and an image display device 100, the image display device 100 includes an image forming apparatus 11 and an optical device 120, the optical device 120 includes a light guide plate 121, a first deflection unit 130 configured with a first hologram diffraction grating 131 and a second hologram diffraction grating 135, and a second deflection unit 140 configured with a third hologram diffraction grating 141, and slant angles and pitches of the first hologram diffraction grating 131, the second hologram diffraction grating 135, and the third hologram diffraction grating 141 satisfy a predetermined relation.Type: GrantFiled: November 25, 2015Date of Patent: July 13, 2021Assignee: SONY CORPORATIONInventors: Takashi Oku, Katsuyuki Akutsu, Akio Machida, Nobuhiro Suzuki, Takuji Yoshida
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Publication number: 20210149202Abstract: A display device 1A includes: a frame 10 that includes a front portion 11 disposed in front of an observer 50, temple portions 12 extending from both ends of the front portion, and a pad portion 17, and is to be mounted on the head of the observer 50; and an image display device attached to the frame 10. The image display device includes: an image forming device 30; and an optical device 40 on which light emitted from the image forming device 30 is incident and from which the light is emitted toward the observer. One end portion 40A of the optical device is fixed to a temple portion side of the front portion 11. The other end portion 40B of the optical device is disposed on a pad portion side of the front portion 11. A light shielding member 60 that prevents external light from being incident on the other end portion 40B of the optical device from above the other end portion 40B of the optical device is attached to the pad portion side of the front portion 11.Type: ApplicationFiled: April 26, 2019Publication date: May 20, 2021Inventors: AKIO MACHIDA, MISAKI SHIMIZU, MITSURU AKAHORI, NOBUHIRO SUZUKI
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Patent number: 10831025Abstract: An image display device includes: an image forming device; an optical device having a virtual image forming region where a virtual image is formed on the basis of light emitted from the image forming device; and a dimming device for adjusting the amount of external light incident from the outside, disposed so as to face the virtual image forming region and to be away from the optical device. The dimming device includes: a transparent protective substrate on which external light is incident; a dimming layer formed on a surface of the protective substrate facing the optical device; and a moisture-retaining layer formed on the dimming layer.Type: GrantFiled: May 19, 2017Date of Patent: November 10, 2020Assignee: Sony CorporationInventors: Koji Kadono, Akio Machida, Ryosuke Sawano
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Publication number: 20200349902Abstract: A display device, a method, and a computer-readable medium. The display device includes a layer including a first region and a second region, wherein the first region and the second region are configured to be visible to a user of the display device; and circuitry configured: to control displaying a computer generated image on an optical device overlapping the layer and to control a first transmittance of the first region of the layer to be lower than a second transmittance of the second region of the layer such that: a visibility, through the first region, of the computer generated image is increased and a visibility, through the second region, of an environment opposite the user relative to the display device is higher than a visibility, through the first region, of the environment opposite the user relative to the display device.Type: ApplicationFiled: July 16, 2020Publication date: November 5, 2020Applicant: Sony CorporationInventor: Akio Machida
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Publication number: 20200264486Abstract: A dimming device includes a first substrate, a second substrate, and a light emitting stacked body that includes a first electrode, a dimming layer, and a second electrode that are stacked; the dimming layer has a stacked structure of a reduction coloring layer, an electrolyte layer, and an oxidation coloring layer; when the number of atoms of a metal contributing to reduction reaction in a compound contained in the reduction coloring layer is denoted by [Re] and the number of atoms of a metal contributing to oxidation reaction in a compound contained in the oxidation coloring layer is denoted by [Ox], the value of [Re]/[Ox] is within a prescribed range; alternatively, when the thickness of the reduction coloring layer is denoted by TRe and the thickness of the oxidation coloring layer is denoted by TOx, the value of TRe/TOx is within a prescribed range.Type: ApplicationFiled: October 5, 2018Publication date: August 20, 2020Applicant: SONY CORPORATIONInventors: Koji KADONO, Akio MACHIDA
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Patent number: 10746998Abstract: An optical device, includes: a first substrate 121 including a first surface 121A and a second surface 121B; a second substrate 122 including a first surface 122A and a second surface 122B; deflection units 141 and 142 disposed on the first surface 121A of the first substrate 121; a sealing member 124 sealing an outer edge portion of the first surface 121A of the first substrate 121 and an outer edge portion of the first surface 122A of the second substrate 122; and a moisture absorption member 130 disposed in a space which is surrounded by the first substrate 121, the second substrate 122, and the sealing member 124.Type: GrantFiled: June 15, 2016Date of Patent: August 18, 2020Assignee: Sony CorporationInventor: Akio Machida
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Patent number: 10663733Abstract: A display apparatus includes a frame mounted on an observer's head, an image display device attached to the frame and a dimming device 700, the image display device includes an image forming device and an optical device 120, 320 having a virtual image forming region 140, 340 where a virtual image is formed on the basis of light emitted from the image forming device, the optical device 120, 320 overlaps with a portion of the dimming device 700, at the time of operation of the dimming device 700, a light blocking ratio of the dimming device 700 is changed over a range of from an upper region 701U to a lower region 701D and/or over a range of from an inner region 701C to an outer region 701S, and a virtual image forming region facing region 701 has a light blocking ratio higher than the light blocking ratio of the lower region 701D or the outer region 701S.Type: GrantFiled: February 9, 2018Date of Patent: May 26, 2020Assignee: Sony CorporationInventor: Akio Machida
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Patent number: 10613329Abstract: A display device comprising a first image display device comprising a light guide plate, a dimmer, and a light control device. The light control device is configured to identify a start time of change in quantity of light received by the display device, and control transmissivity of the dimmer based on quantity of light received by the display device, after a predetermined amount of time after the start time has elapsed.Type: GrantFiled: March 9, 2017Date of Patent: April 7, 2020Assignee: Sony CorporationInventors: Masayuki Ato, Akio Machida
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Publication number: 20200041793Abstract: It is an object of the present invention to provide a display apparatus having a configuration and a structure that enable virtual images to be observed by an observer to exhibit high contrast, and enable the observer who uses the display apparatus to safely act in a real environment while reliably recognizing an external environment. A display apparatus of the present invention includes: a frame to be mounted to a head of an observer; an image display apparatus attached to the frame; and a dimming apparatus 700. The image display apparatus includes an image forming apparatus, and an optical apparatus 120 having a virtual-image forming region 701 in which virtual images are formed. The optical apparatus 120 overlaps with at least a part of the dimming apparatus 700.Type: ApplicationFiled: August 2, 2017Publication date: February 6, 2020Applicant: Sony CorporationInventors: Koji Kadono, Akio Machida
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Publication number: 20190227309Abstract: An image display device includes: an image forming device; an optical device having a virtual image forming region where a virtual image is formed on the basis of light emitted from the image forming device; and a dimming device for adjusting the amount of external light incident from the outside, disposed so as to face the virtual image forming region and to be away from the optical device. The dimming device includes: a transparent protective substrate on which external light is incident; a dimming layer formed on a surface of the protective substrate facing the optical device; and a moisture-retaining layer formed on the dimming layer.Type: ApplicationFiled: May 19, 2017Publication date: July 25, 2019Applicant: SONY CORPORATIONInventors: Koji KADONO, Akio MACHIDA, Ryosuke SAWANO
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Publication number: 20190146221Abstract: To provide a display device in which the brightness of the image viewed by the observer is bright, and the brightness of the image is as uniform as possible. The display device according to the present invention includes a frame 10 and an image display device 100, the image display device 100 includes an image forming apparatus 11 and an optical device 120, the optical device 120 includes a light guide plate 121, a first deflection unit 130 configured with a first hologram diffraction grating 131 and a second hologram diffraction grating 135, and a second deflection unit 140 configured with a third hologram diffraction grating 141, and slant angles and pitches of the first hologram diffraction grating 131, the second hologram diffraction grating 135, and the third hologram diffraction grating 141 satisfy a predetermined relation.Type: ApplicationFiled: November 25, 2015Publication date: May 16, 2019Inventors: TAKASHI OKU, KATSUYUKI AKUTSU, AKIO MACHIDA, NOBUHIRO SUZUKI, TAKUJI YOSHIDA
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Publication number: 20180322845Abstract: A display device, a method, and a computer-readable medium. The display device includes a layer including a first region and a second region, wherein the first region and the second region are configured to be visible to a user of the display device; and circuitry configured: to control displaying a computer generated image on an optical device overlapping the layer and to control a first transmittance of the first region of the layer to be lower than a second transmittance of the second region of the layer such that: a visibility, through the first region, of the computer generated image is increased and a visibility, through the second region, of an environment opposite the user relative to the display device is higher than a visibility, through the first region, of the environment opposite the user relative to the display device.Type: ApplicationFiled: April 15, 2016Publication date: November 8, 2018Applicant: Sony CorporationInventor: Akio Machida
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Publication number: 20180210207Abstract: An optical device, includes: a first substrate 121 including a first surface 121A and a second surface 121B; a second substrate 122 including a first surface 122A and a second surface 122B; deflection units 141 and 142 disposed on the first surface 121A of the first substrate 121; a sealing member 124 sealing an outer edge portion of the first surface 121A of the first substrate 121 and an outer edge portion of the first surface 122A of the second substrate 122; and a moisture absorption member 130 disposed in a space which is surrounded by the first substrate 121, the second substrate 122, and the sealing member 124.Type: ApplicationFiled: June 15, 2016Publication date: July 26, 2018Applicant: Sony CorporationInventor: Akio MACHIDA