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公开(公告)号：US20180013993A1
公开(公告)日：2018-01-11
申请号：US15692186
申请日：2017-08-31
Inventor： Kazuhiro MINAMI
IPC: H04N9/31
CPC classification number: H04N9/3155 , H04N9/3161 , H04N9/3164 , H04N9/3185 , H04N9/3194
Abstract: A projection system includes an invisible light projector, an imaging unit, an image generator, and a visible light projector. The invisible light projector projects a predetermined invisible light image onto the object via invisible light. The imaging unit captures an image of the invisible light projected from the invisible light projector. The image generator measures a shape of the object based on the image captured by the imaging unit to generate image data showing image content for projection onto the object in accordance with the measured shape. The visible light projector projects the image content shown by the image data onto the object via visible light. The invisible light projector emits pulsed invisible light to project the measurement pattern. The image generator generates the image data based on an image captured in accordance with a timing for the pulsed light emission.
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公开(公告)号：US20160150204A1
公开(公告)日：2016-05-26
申请号：US15009362
申请日：2016-01-28
Inventor： Yasuhiro TANAKA , Yoshiyuki HISATOMI , Kazuhiro MINAMI , Kyoichi MIYAZAKI
CPC classification number: H04N9/3185 , G02B7/16 , G03B21/142 , G03B21/145 , G03B21/147 , H04N9/3147
Abstract: A projector system including a projector unit and a control device. The projector unit includes: a projector; a change mechanism that changes a projection direction; a plurality of optical systems having different optical properties; and a switch mechanism that selects one of the optical systems. The control device includes: a change unit that controls the change mechanism; and a switch unit that causes the switch mechanism to place one of the optical systems to be used for the projector in conjunction with the changing of the projection direction of the projector which is caused by the change unit.
Abstract translation: 一种投影仪系统，包括投影仪单元和控制装置。 投影仪单元包括：投影仪; 改变投影方向的改变机构; 具有不同光学特性的多个光学系统; 以及选择光学系统之一的开关机构。 控制装置包括：变更单元，控制变更机构; 以及开关单元，其使得所述开关机构将所述用于所述投影仪的所述光学系统中的一个与所述改变单元引起的投影仪的投影方向的变化相结合。
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公开(公告)号：US20250116860A1
公开(公告)日：2025-04-10
申请号：US18983957
申请日：2024-12-17
Inventor： Kazuhiro MINAMI , Satoshi KUZUHARA , Ken'ichi KASAZUMI , Kosuke IMAWAKA
Abstract: A light guide includes an exit extension region including a diffraction structure dividing an image light ray propagating in a first direction intersecting a thickness direction of a body, into image light rays propagating in a second direction intersecting the first direction, in the first direction, and allowing them to emerge therefrom. At least one part of the region satisfies that when refractive indices of media on individual incident and exit sides of a ray relative to the region are assumed to be equal to each other, an exit angle θ_out of a ray emerging from the region at the highest diffraction efficiency in a plane including a normal line of the region is not smaller than 15° and is not greater than 45°, and an incident angle θ_in of a ray incident on the region in the plane is greater than θ_out by 14° or more.
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公开(公告)号：US20240111161A1
公开(公告)日：2024-04-04
申请号：US18532148
申请日：2023-12-07
Inventor： Satoshi KUZUHARA , Kazuhiro MINAMI
CPC classification number: G02B27/0172 , G02B6/34
Abstract: An optical system includes a light guide for guiding an image light ray output from a display element to a field of view region as a virtual image. The light guide includes a periodic structure formed in the body having a plate shape. The periodic structure has periodicity in three predetermined directions intersecting each other within a predetermined plane perpendicular to a thickness direction of the body. The periodic structure includes an in-coupling region dividing the image light ray into a plurality of image light rays and allowing the plurality of image light rays to propagate within the body in a plurality of branch directions including branch directions respectively parallel to the predetermined directions, and an exit region allowing the plurality of image light rays propagating in the plurality of branch directions within the body to emerge from the body toward the field of view region.
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公开(公告)号：US20230408746A1
公开(公告)日：2023-12-21
申请号：US18240764
申请日：2023-08-31
Inventor： Satoshi KUZUHARA , Kazuhiro MINAMI , Hiroaki OKAYAMA
CPC classification number: G02B6/0016 , G02B27/0075 , G02B6/0036 , G02B27/0172
Abstract: An optical system includes: a projection optical system for projecting an image light ray output from a display element and forming an image; and a light guide including an in-coupling region for guiding the ray to an inside of the guide and allowing it to travel in a first axis direction within the guide, and a propagation region for allowing the ray from the in-coupling region to propagate in the direction of the first axis, and allowing part of the ray to travel in a predetermined direction including a directional component of a second axis perpendicular to the first axis. In an optical path of the ray, a distance from the projection optical system to an entrance pupil of the projection optical system relative to the element in a plane perpendicular to the first axis is longer than a distance from the projection optical system to the in-coupling region.
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Patent Agency Ranking
公开(公告)号：US20230393392A1
公开(公告)日：2023-12-07
申请号：US18236506
申请日：2023-08-22
Inventor： Kazuhiro MINAMI , Satoshi KUZUHARA
CPC classification number: G02B27/0101 , G02B27/0081 , G02B6/0016 , G02B2027/013 , G02B6/0038 , G02B2027/0196 , G02B27/1086
Abstract: A head-up display system includes a display that emits a light flux and a light guide body that guides the light flux to the light-transmitting member. A light beam at a center of the light flux emitted from the display is incident while being inclined with respect to a normal direction of the incident surface of the light guide body. The light flux incident on the incident surface of the light guide body is changed in a traveling direction in the light guide body, the light flux is replicated into a plurality of light fluxes in a horizontal direction of the virtual image, and then the replicated light fluxes are further replicated in a vertical direction of the virtual image to be emitted from the emission surface so as to expand the visual recognition region. A light beam at a center of the light fluxes emitted from the light guide body is emitted toward the light-transmitting member while being inclined with respect to a normal direction of the emission surface of the light guide body.
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公开(公告)号：US20220150454A1
公开(公告)日：2022-05-12
申请号：US17585796
申请日：2022-01-27
Inventor： Kazuhiro MINAMI
Abstract: A projector includes a first projection unit that projects a first image, a first imager that captures a second image projected by another projector, and a first calculation unit. The first calculation unit calculates, from captured image data of the second image captured by the first imager and interval information indicating an interval between the other projector and the projector, a first distance between a surface on which the second image is projected and the other projector, or a second distance between an area in which the second image is projected and the projector. The first projection unit controls projection of the first image based on the first distance or the second distance.
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28.发明申请公开(公告)号：US20210304793A1
公开(公告)日：2021-09-30
申请号：US16963575
申请日：2019-10-23
Inventor： Yoshiaki KOMMA , Yasushi KOBAYASHI , Kazuhiro MINAMI
IPC: G11B7/1374 , G11B7/0045 , G02B13/18
Abstract: Provided is an objective lens which is used so that more information can be accumulated in a large-capacity optical disk and which has a further enhanced numerical aperture NA. The objective lens is a single lens having the numerical aperture NA and a refractive index n, and is configured so as to satisfy: NA≥0.91 and 1.61≤n
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公开(公告)号：US20190364251A1
公开(公告)日：2019-11-28
申请号：US16534189
申请日：2019-08-07
Inventor： Chiharu TSUBOTA , Kazuhiro MINAMI
IPC: H04N9/31 , H04N13/312 , G03B21/20
Abstract: A projection system projects an image corresponding to a shape of an object. The projection system includes a non-visible light projection unit, an imager, an image generation unit, and a visible-light projection unit. The non-visible light projection unit projects a predetermined non-visible light image with non-visible light having predetermined polarized light as a main component, onto the object and a background member that reflects the non-visible light while the background member maintains the predetermined polarized light. The imager images a non-visible light image reflected by the object and the background member while blocking the non-visible light of the predetermined polarized light, and generates imaged data. The image generation unit measures the shape of the object based on the imaged data, and generates image data according to a measurement result. The visible-light projection unit projects an image shown by the image data, onto the object with visible light.
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公开(公告)号：US20190281263A1
公开(公告)日：2019-09-12
申请号：US16421964
申请日：2019-05-24
Inventor： Kazuhiro MINAMI , Ryuji FUCHIKAMI
IPC: H04N9/31
Abstract: A projection system includes an invisible light projector, a background member, an imaging unit, an image generator, and a visible light projector. The invisible light projector projects a predetermined invisible light image onto the object via invisible light. The background member is disposed behind the object in a direction of the invisible light emitted from the invisible light projector. The imaging unit captures an image of the invisible light projected from the invisible light projector. The image generator measures a shape of the object based on the image captured by the imaging unit to generate image data showing image content for projection onto the object in accordance with the measured shape. The visible light projector projects the image content shown by the image data onto the object via visible light. The background member has a light shielding surface that does not diffusely reflect the invisible light incident thereon.
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