Patents by Inventor Peter John Roberts
Peter John Roberts 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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Publication number: 20240085700Abstract: The display device of the present invention includes, in the following order toward a viewer: a display panel; a semi-transparent mirror; a Pancharatnam-Berry lens configured to cause one-handed circularly polarized light incident thereon that is left-handed circularly polarized light or right-handed circularly polarized light to converge while causing opposite-handed circularly polarized light incident thereon to diverge; and a circularly polarized light-selective reflector.Type: ApplicationFiled: August 21, 2023Publication date: March 14, 2024Inventors: MATTIA SIGNORETTO, DAVID JAMES MONTGOMERY, PETER JOHN ROBERTS, Naru USUKURA, Manabu DAIO
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Patent number: 11871610Abstract: A light-emitting structure includes a substrate, a sub-pixel stack over a surface of the substrate, and a bank including a first bank portion and a second bank portion. The sub-pixel stack has an emissive stack including an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The second bank portion is between the first bank portion and the sub-pixel stack, and the bank surrounding at least the emissive stack and the first electrode layer forms an interior space above the sub-pixel stack.Type: GrantFiled: May 13, 2021Date of Patent: January 9, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: David James Montgomery, Peter John Roberts
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Patent number: 11762151Abstract: [Object] To provide a technology in flash LiDAR applicable to a wide incidence-angle range. [Solution] An optical radar device (100) includes a light emitting unit (110) that diffusively radiates a laser beam, an arrayed light receiving unit (120) that receives the laser beam emitted from the light emitting unit (110) and reflected off an object whose range is to be determined (10), the arrayed light receiving unit (120) including light receiving elements arrayed two-dimensionally, and a telecentric lens (140) disposed between the object whose range is to be determined and the light receiving element.Type: GrantFiled: November 1, 2019Date of Patent: September 19, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Koji Takahashi, Peter John Roberts
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Patent number: 11681142Abstract: [Object] To provide (i) a two-lens optical system, (ii) a beam combining module, (iii) a projector, and (iv) a method for assembling a two-lens optical system each of which allows for an improved lens positioning sensitivity [Means to Attain the Object] A two-lens optical system (100) includes a first lens (1) for use in collimation adjustment, the first lens being configured to move along only an optical axis of light emitted from a light source; and a second lens (2) for use in beam steering, the second lens being configured to move along only two axes perpendicular to the optical axis.Type: GrantFiled: May 14, 2018Date of Patent: June 20, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Peter John Roberts, Noriaki Fujii, Shin Itoh
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Patent number: 11626576Abstract: A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.Type: GrantFiled: June 15, 2021Date of Patent: April 11, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Peter John Roberts, David James Montgomery
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Publication number: 20230085136Abstract: A beam combining module combines a first beam corresponding to a first wavelength and a second beam corresponding to a second wavelength. The beam combining module includes a collimating lens, a first mirror, and second mirror. The collimating lens is configured to receive the first beam and the second beam that are parallel to each other and to emit the first beam and the second beam in respective non-parallel directions. The first mirror is configured to reflect the first beam emitted by the collimating lens. The second mirror is configured to reflect the second beam emitted by the collimating lens in a direction parallel to the first beam reflected by the first mirror and in such a manner that the second beam emitted by the collimating lens spatially overlaps the first beam reflected by the first mirror.Type: ApplicationFiled: September 9, 2022Publication date: March 16, 2023Inventors: PETER JOHN ROBERTS, NATHAN COLE, Valerie Busque, Noriaki FUJII, KATSUSHIGE MASUI
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Publication number: 20220399526Abstract: A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.Type: ApplicationFiled: June 15, 2021Publication date: December 15, 2022Inventors: PETER JOHN ROBERTS, DAVID JAMES MONTGOMERY
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Publication number: 20220367837Abstract: A light-emitting structure includes a substrate, a sub-pixel stack over a surface of the substrate, and a bank including a first bank portion and a second bank portion. The sub-pixel stack has an emissive stack including an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The second bank portion is between the first bank portion and the sub-pixel stack, and the bank surrounding at least the emissive stack and the first electrode layer forms an interior space above the sub-pixel stack.Type: ApplicationFiled: May 13, 2021Publication date: November 17, 2022Inventors: DAVID JAMES MONTGOMERY, PETER JOHN ROBERTS
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Publication number: 20220049837Abstract: An output light adjusting device for adjusting a degree of collimation of first output light emitted from a light source module comprises a first image obtainer that obtains a first image of second output light output from a condenser, the condenser receiving the first output light, the first image being obtained at a position at which a length of a path of the second output light output from the condenser matches a first distance, the first distance being a distance from the condenser to a near position; and a second image obtainer that obtains a second image of the second output light at a position at which the length of the path of the second output light output from the condenser matches a second distance, the second distance being a distance from the condenser to a far position.Type: ApplicationFiled: August 9, 2021Publication date: February 17, 2022Inventors: Shin ITOH, KATSUSHIGE MASUI, PETER JOHN ROBERTS
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Publication number: 20220005972Abstract: An image display device includes a drive circuit substrate, micro LED elements, and a wavelength conversion layer that converts excitation light emitted from the micro LED elements and that emits converted long-wavelength light to a side opposite to the drive circuit substrate, the micro LED elements and the wavelength conversion layer being sequentially stacked on the drive circuit substrate. The micro LED elements include a first multilayer film that reflects the long-wavelength light converted by the wavelength conversion layer.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Inventors: KATSUJI IGUCHI, KOJI TAKAHASHI, HIDENORI KAWANISHI, PETER JOHN ROBERTS, NATHAN COLE
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Patent number: 11133434Abstract: An image display device includes a drive circuit substrate, micro LED elements, and a wavelength conversion layer that converts excitation light emitted from the micro LED elements and that emits converted long-wavelength light to a side opposite to the drive circuit substrate, the micro LED elements and the wavelength conversion layer being sequentially stacked on the drive circuit substrate. The micro LED elements include a first multilayer film that reflects the long-wavelength light converted by the wavelength conversion layer.Type: GrantFiled: March 1, 2019Date of Patent: September 28, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Katsuji Iguchi, Koji Takahashi, Hidenori Kawanishi, Peter John Roberts, Nathan Cole
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Publication number: 20210239968Abstract: To provide (i) a two-lens optical system, (ii) a beam combining module, (iii) a projector, and (iv) a method for assembling a two-lens optical system each of which allows for an improved lens positioning sensitivity [Means to Attain the Object] A two-lens optical system (100) includes a first lens (1) for use in collimation adjustment, the first lens being configured to move along only an optical axis of light emitted from a light source; and a second lens (2) for use in beam steering, the second lens being configured to move along only two axes perpendicular to the optical axis.Type: ApplicationFiled: May 14, 2018Publication date: August 5, 2021Inventors: PETER JOHN ROBERTS, NORIAKI FUJII, SHIN ITOH
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Patent number: 10754234Abstract: An embodiment of the present invention enables an improvement in image resolution. A projection device (1) includes: a light source (11); a MEMS mirror (14) which reflects and two-dimensionally scans the laser beam emitted from the light source; and a free-form lens (15) which changes focusing properties of the laser beam reflected by the scanning section such that, after propagation of the laser beam to a screen (20) onto which the image is to be projected, a shape of the laser beam when viewed on the screen has a first width that is shorter than a second width of the shape, the first width being along a horizontal direction corresponding to a primary scanning direction in which the MEMS mirror scans the laser beam, the second width being along a vertical direction.Type: GrantFiled: November 29, 2018Date of Patent: August 25, 2020Assignee: Sharp Kabushiki KaishaInventors: Peter John Roberts, Noriaki Fujii, Kengo Yamasawa
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Publication number: 20200174356Abstract: An embodiment of the present invention enables an improvement in image resolution. A projection device (1) includes: a light source (11); a MEMS mirror (14) which reflects and two-dimensionally scans the laser beam emitted from the light source; and a free-form lens (15) which changes focusing properties of the laser beam reflected by the scanning section such that, after propagation of the laser beam to a screen (20) onto which the image is to be projected, a shape of the laser beam when viewed on the screen has a first width that is shorter than a second width of the shape, the first width being along a horizontal direction corresponding to a primary scanning direction in which the MEMS mirror scans the laser beam, the second width being along a vertical direction.Type: ApplicationFiled: November 29, 2018Publication date: June 4, 2020Inventors: Peter John Roberts, Noriaki Fujii, Kengo Yamasawa
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Publication number: 20200142072Abstract: [Object] To provide a technology in flash LiDAR applicable to a wide incidence-angle range. [Solution] An optical radar device (100) includes a light emitting unit (110) that diffusively radiates a laser beam, an arrayed light receiving unit (120) that receives the laser beam emitted from the light emitting unit (110) and reflected off an object whose range is to be determined (10), the arrayed light receiving unit (120) including light receiving elements arrayed two-dimensionally, and a telecentric lens (140) disposed between the object whose range is to be determined and the light receiving element.Type: ApplicationFiled: November 1, 2019Publication date: May 7, 2020Inventors: KOJI TAKAHASHI, PETER JOHN ROBERTS
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Publication number: 20190273179Abstract: An image display device includes a drive circuit substrate, micro LED elements, and a wavelength conversion layer that converts excitation light emitted from the micro LED elements and that emits converted long-wavelength light to a side opposite to the drive circuit substrate, the micro LED elements and the wavelength conversion layer being sequentially stacked on the drive circuit substrate. The micro LED elements include a first multilayer film that reflects the long-wavelength light converted by the wavelength conversion layer.Type: ApplicationFiled: March 1, 2019Publication date: September 5, 2019Inventors: KATSUJI IGUCHI, KOJI TAKAHASHI, HIDENORI KAWANISHI, PETER JOHN ROBERTS, NATHAN COLE
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Patent number: 10281640Abstract: An illumination system comprises a lightguide (12) having a plurality of light extraction features (LEFs); and a plurality of independently controllable light sources (11a, 11b, 11c). The LEFs have a preferred direction, with light that is incident on an LEF along the preferred direction of the LEF being extracted from the lightguide generally parallel to a reference plane, and light that is incident on an LEF not along the preferred direction of the LEF being extracted from the lightguide at an extraction angle to the reference plane, the extraction angle being related by a response function to an incidence angle between the light propagation direction and the preferred direction of LEF. The shape of the LEFs varies with distance from a reference point or respective reference point so that the response function becomes larger with increasing distance of the LEFs from the reference point.Type: GrantFiled: September 16, 2015Date of Patent: May 7, 2019Assignee: Sharp Kabushiki KaishaInventors: David James Montgomery, Peter John Roberts, Paul Antony Gass
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Publication number: 20180306978Abstract: An optical multiplexer (10) that multiplexes a plurality of light beams having different wavelengths includes a first waveguide (101) that receives first-wavelength light, a second waveguide (102) that receives second-wavelength light having a shorter wavelength than the first-wavelength light, a third waveguide (103) that receives third-wavelength light having a shorter wavelength than the second-wavelength light, a first multiplexer (110) in which the light propagates between the first waveguide (101) and the second waveguide (102), and a second multiplexer (120) in which the light propagates between the first waveguide (101) and the third waveguide (103). The second-wavelength light is propagated to the first waveguide (101) at the first multiplexer (110). The third-wavelength light is propagated to the first waveguide (101) at the second multiplexer (120).Type: ApplicationFiled: October 13, 2016Publication date: October 25, 2018Applicant: SHARP KABUSHIKI KAISHAInventors: TOSHIO KAGAWA, MASATAKA ANDOU, PETER JOHN ROBERTS, VALERIE BERRYMAN-BOUSQUET
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Publication number: 20170255020Abstract: A head mounted display device includes a switchable light source that is switched to emit light for generating at least one viewing zone, and a panel illumination unit illuminated by the light source. The panel illumination unit converges the light onto an image panel that selectively transmits light at different pixels to generate image content. An eye monitor measures information pertaining to an eye configuration of a user, and the image content is visible to the user when the eye is aligned with respect to the viewing zone. The panel illumination unit converges the light such that light emitted by the image panel converges into the viewing zone positioned based on the eye configuration information measured by the eye monitor, with limited divergence such that when the display device is worn by the user, the image panel is located at a distance from the user's eye closer than a distance where the eye can focus the pixels.Type: ApplicationFiled: March 4, 2016Publication date: September 7, 2017Inventors: Ka Ho Tam, David James Montgomery, Andrew Kay, Peter John Roberts, Marco Zanola
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Publication number: 20170242181Abstract: An illumination system comprises a lightguide (12) having a plurality of light extraction features (LEFs); and a plurality of independently controllable light sources (11a, 11b, 11c). The LEFs have a preferred direction, with light that is incident on an LEF along the preferred direction of the LEF being extracted from the lightguide generally parallel to a reference plane, and light that is incident on an LEF not along the preferred direction of the LEF being extracted from the lightguide at an extraction angle to the reference plane, the extraction angle being related by a response function to an incidence angle between the light propagation direction and the preferred direction of LEF. The shape of the LEFs varies with distance from a reference point or respective reference point so that the response function becomes larger with increasing distance of the LEFs from the reference point.Type: ApplicationFiled: September 16, 2015Publication date: August 24, 2017Inventors: David James MONTGOMERY, Peter John ROBERTS, Paul Antony GASS