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公开(公告)号：US20250004276A1
公开(公告)日：2025-01-02
申请号：US18757445
申请日：2024-06-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA , Mitsutaka IDE
Abstract: A virtual image display device includes: a first lens that has a positive refractive power and on which video light is incident from the display element, a first prism on which the video light passed through the first lens is incident, a second prism that is bonded to the first prism, a polarized light separation film that is provided at a bonding site of the first prism and the second prism, a second lens that is disposed facing an outer surface of the first prism, a transmissive mirror that is formed on a convex surface of the second lens, a quarter-wavelength plate disposed between the outer surface and the flat surface of the second lens, and a compensation lens that has a shape obtained by inverting the convex surface of the second lens and that is bonded to the convex surface.
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公开(公告)号：US20240248308A1
公开(公告)日：2024-07-25
申请号：US18415553
申请日：2024-01-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA
CPC classification number: G02B27/0172 , G02B5/3016 , G02B2027/0178
Abstract: A virtual image display device includes: a scattering member including a scattering region for scattering image light as a pixel display region, a projection optical system configured to irradiate the scattering region with the image light, a light-blocking member arranged at an external side of the scattering member and configured to suppress incidence of external light on the scattering region, a first polarizing member arranged at a face side of the scattering member and including a first polarizing region provided corresponding to the scattering region, a second polarizing member arranged at an external side of a position of the first polarizing member and including a second polarizing region for restricting the external light to a second polarization direction, and a polarization separation lens element arranged at a face side of the first polarizing member and having refractive power that selectively acts on polarized light of the image light.
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公开(公告)号：US20230102935A1
公开(公告)日：2023-03-30
申请号：US17956345
申请日：2022-09-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA
Abstract: A projection device according to the present disclosure includes a light emission display panel in which a plurality of pixels including a light emission element are arranged in a matrix shape, a scanning mirror configured to reflect, toward a scanned surface, imaging light emitted from the light emission display panel and performs two-dimensional scanning of the reflected imaging light on the scanned surface, and a projection optical system configured to guide the imaging light from the light emission display panel to the scanning mirror.
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公开(公告)号：US20220171195A1
公开(公告)日：2022-06-02
申请号：US17536983
申请日：2021-11-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA
Abstract: A virtual image display apparatus includes a first display device for a right eye, a second display device for a left eye, and an adjustment device configured to adjust display positions, and the first display device and the second display device are configured to guide imaging light in a second direction intersecting a first direction in which the first display device and the second display device are aligned, and display the first image and the second image and the adjustment device makes an adjustment to provide an overlapping area in which the first image and the second image are visually recognized in the overlapping area and an independent area in which the first image and the second image are visually recognized independently.
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85.发明申请公开(公告)号：US20210405377A1
公开(公告)日：2021-12-30
申请号：US17474333
申请日：2021-09-14
Applicant: SEIKO EPSON CORPORATION
Inventor： Toshiaki MIYAO , Masayuki TAKAGI , Takashi TAKEDA , Tokito YAMAGUCHI
Abstract: A light-guiding device includes a pair of light-guiding portions, a pair of light-incident portions that causes image light to be incident on the pair of light-guiding portions respectively, and a pair of light-emitting portions that emit image light, guided by the pair of light-guiding portions, to outside respectively, in which a pair of optical members including the pair of light-guiding portions are coupled by a central member having light transmissivity, and separate overcoat layers are provided at the optical member on one side and at the optical member on another side with respect to an approximate center of the central member.
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Patent Agency Ranking
公开(公告)号：US20210302743A1
公开(公告)日：2021-09-30
申请号：US17218199
申请日：2021-03-31
Applicant: SEIKO EPSON CORPORATION
Inventor： Daiki MATSUMOTO , Masatoshi YONEKUBO , Takashi TAKEDA
IPC: G02B27/01
Abstract: A virtual image display device includes an image light generation device, a projection optical system configured to project image light emitted from the image light generation device, a folding mirror configured to reflect the image light from the projection optical system, a semi-transmissive mirror configured to reflect part of the image light from the folding mirror, and a concave surface mirror configured to reflect, the image light reflected by the semi-transmissive mirror to form an exit pupil, wherein an optical axis of the projection optical system is arranged in a direction intersecting a reference plane including an optical axis extending from the folding mirror to the semi-transmissive mirror and an optical axis extending from the concave surface mirror to the exit pupil, and a display region of the image light generation device is arranged inclined in accordance with inclinations of the folding mirror and the semi-transmissive mirror that are arranged.
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公开(公告)号：US20210302741A1
公开(公告)日：2021-09-30
申请号：US17217116
申请日：2021-03-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Daiki MATSUMOTO , Masatoshi YONEKUBO , Takashi TAKEDA
Abstract: A virtual image display apparatus includes an image light generation device, a projection optical system configured to project image light emitted from the image light generation device, a folding mirror configured to reflect the image light from the projection optical system in an intersection direction, a semi-transmissive mirror configured to reflect a part of the image light from the folding mirror, and a concave mirror configured to reflect the image light from the semi-transmissive mirror forming an exit pupil, in which the folding mirror is disposed between the semi-transmissive mirror and the concave mirror when viewed in a first direction, provided that the first direction is a direction from an intersection point between a projection optical axis that is an optical axis of the projection optical system and the folding mirror toward an emission optical axis that is an optical axis from the concave mirror toward the exit pupil.
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公开(公告)号：US20210165227A1
公开(公告)日：2021-06-03
申请号：US17105681
申请日：2020-11-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Tokito YAMAGUCHI , Masayuki TAKAGI , Toshiaki MIYAO , Akira KOMATSU , Takashi TAKEDA
IPC: G02B27/01
Abstract: A panel unit configured to, for imaging light, use different opening ratios depending on a wavelength band for displaying an image, a yellowing optical member that is disposed on an optical path of imaging light emitted from the panel unit, and turns yellow with age, a yellowing degree estimation unit configured to estimate, by prediction, a yellowing degree of the yellowing optical member with age, and a luminance adjustment unit configured to, depending on yellowing of the yellowing optical member, based on data of the yellowing degree estimation unit, adjust luminance of an image in the panel unit, are provided.
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公开(公告)号：US20210132392A1
公开(公告)日：2021-05-06
申请号：US17084185
申请日：2020-10-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Tokito YAMAGUCHI , Toshiaki MIYAO , Takashi TAKEDA
IPC: G02B27/01
Abstract: A display element, and a light-guiding member including a plurality of reflection surfaces and configured to guide image light from the display element by reflecting the image light at an inner surface, and cause the image light and external light to be visually recognized in an overlapping manner are provided, wherein at a boundary between a first reflection surface and a second reflection surface adjacent to each other included in the plurality of reflection surfaces of the light-guiding member with at least one of the first reflection surface and the second reflection surface including a curved surface, an end of the first reflection surface and an end of the second reflection surface match when projected from a specific direction.
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公开(公告)号：US20210132389A1
公开(公告)日：2021-05-06
申请号：US17082023
申请日：2020-10-28
Applicant: SEIKO EPSON CORPORATION
Inventor： Toshiaki MIYAO , Masayuki TAKAGI , Tokito YAMAGUCHI , Takashi TAKEDA
Abstract: A light-guiding device is configured to accept image light through a light incidence part, guide the image light through reflection, and emit, to outside through a light emission part, the image light that is guided, the light-guiding device includes a protective member having a sheet shape and configured to cover a body member in a region corresponding to an optical surface of a surface of the light-guiding device, and an adhesive layer is formed between the body member and the protective member.
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