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公开(公告)号：US20250076654A1
公开(公告)日：2025-03-06
申请号：US18814744
申请日：2024-08-26
Applicant: TDK Corporation
Inventor： Takashi ASATANI , Masahiro SHINKAI
Abstract: A retinal projection device includes: a projector module including a laser module that emits laser light, a collimation lens that converts the laser light into a parallel beam, and a movable mirror that performs scanning by the beam; a projection lens that focuses the beam emitted from the projector module at a focusing position; an optical unit including a deflector, which changes a traveling direction of the beam, arranged so as to overlap the focusing position; an optical device that converts the beam into parallel light and irradiate a retina of a user with the parallel light; and a controller that adjusts the traveling direction of the beam by the deflector in accordance with a position of a pupil of the user.
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公开(公告)号：US20150255698A1
公开(公告)日：2015-09-10
申请号：US14638690
申请日：2015-03-04
Applicant: TDK CORPORATION
Inventor： Kazuya MAEKAWA , Takashi ASATANI
IPC: H01L35/32
Abstract: A thermoelectric device includes a semiconductor stacked thermoelectric thin film including a first high-purity layer composed of SiGe as a main material and a composite carrier supply layer formed on the first high-purity layer. The composite carrier supply layer includes a second high-purity layer and third high-purity layer composed of Si as a main material, and a carrier supply layer held between the second and third high-purity layers and composed of SiGe as a main material. The carrier supply layer is a P-type carrier supply layer to which an additive of a group XIII element is added or a N-type carrier supply layer to which an additive of a group XV element is added.
Abstract translation: 热电装置包括：包含由SiGe作为主要材料的第一高纯度层和形成在第一高纯度层上的复合载体供给层的半导体层叠热电薄膜。 复合载体供给层包括第二高纯度层和由Si作为主要材料构成的第三高纯度层，以及保持在第二和第三高纯度层之间并由SiGe作为主要材料的载体供给层。 载体供给层是添加有第ⅩⅢ族元素的添加剂的P型载体供给层或添加有第XV族元素的添加剂的N型载体供给层。
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公开(公告)号：US20200028054A1
公开(公告)日：2020-01-23
申请号：US16271167
申请日：2019-02-08
Applicant: TDK CORPORATION
Inventor： Takashi ASATANI , Makoto SHIBATA
Abstract: A thermoelectric conversion device includes: a substrate having a first surface and a second surface that face each other in a thickness direction; at least one thermoelectric conversion element which is provided in a surface on a side of at least one of the first surface and the second surface; a heat transfer member disposed on the side of the substrate, on which the at least one thermoelectric conversion element is provided, with an interval from at least a part of the at least one thermoelectric conversion element; and at least one heat transfer portion configured to thermally connect the at least one thermoelectric conversion element and the heat transfer member, wherein an interspace between the substrate and the heat transfer member is sealed outside a perimeter of the at least one thermoelectric conversion element.
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公开(公告)号：US20190267531A1
公开(公告)日：2019-08-29
申请号：US16334929
申请日：2017-07-31
Applicant: TDK CORPORATION
Inventor： Makoto SHIBATA , Kazuya MAEKAWA , Takashi ASATANI
Abstract: There is provided a thermoelectric conversion device comprising a substrate including a first surface and a second surface which are opposite to each other in a thickness direction, at least one thermoelectric conversion film disposed on the first surface, and a first heat transfer part disposed on a second surface side. The substrate is joined to the first heat transfer part in a movable state with respect to the first heat transfer part.
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Patent Agency Ranking
公开(公告)号：US20250076656A1
公开(公告)日：2025-03-06
申请号：US18814959
申请日：2024-08-26
Applicant: TDK Corporation
Inventor： Takashi ASATANI , Masahiro SHINKAI
Abstract: A retinal projection device includes: a switching unit capable of switching an optical path of a beam; a combiner that converts the beam into parallel light; and a notch filter that passes circularly polarized light with a first polarity in light of the red wavelength, passes circularly polarized light with the second polarity in light of the green wavelength, and passes circularly polarized light with the first polarity in light of the blue wavelength. The combiner includes: a first holographic diffraction layer that diffracts circularly polarized light with the first polarity in a first wavelength range including the red wavelength; a second holographic diffraction layer that diffracts circularly polarized light with the second polarity in a second wavelength range including the green wavelength; and a third holographic diffraction layer that diffracts circularly polarized light with the first polarity in a third wavelength range including the blue wavelength.
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公开(公告)号：US20240419004A1
公开(公告)日：2024-12-19
申请号：US18714773
申请日：2022-03-28
Applicant: TDK CORPORATION
Inventor： Takashi ASATANI
Abstract: A projector module that is able to be used in a retinal projection display device and moved by a movement means includes a laser module having a plurality of laser chips, a collimation lens configured to convert light from the laser module into parallel light beams, and an optical scanning device configured to change a direction of the light from the collimation lens to perform a scanning process. Relative positions of the laser module, the collimation lens, and the optical scanning device are fixed.
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公开(公告)号：US20200006614A1
公开(公告)日：2020-01-02
申请号：US16490405
申请日：2017-07-31
Applicant: TDK CORPORATION
Inventor： Makoto SHIBATA , Kazuya MAEKAWA , Takashi ASATANI
Abstract: A thermoelectric conversion device includes: a substrate that includes a first surface and a second surface facing each other in a thickness direction; thermoelectric conversion elements that are disposed on a side of the first surface of the substrate; and a plurality of heat transfer parts that are formed with spaces interposed therebetween in a first direction along an in-plane direction of the substrate, and that are configured to transfer heat from/to the thermoelectric conversion elements, wherein a low heat conduction part having a lower thermal conductivity than a thermal conductivity of the heat transfer parts is disposed between the heat transfer parts adjacent to each other in the first direction.
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公开(公告)号：US20190252593A1
公开(公告)日：2019-08-15
申请号：US16270977
申请日：2019-02-08
Applicant: TDK CORPORATION
Inventor： Makoto SHIBATA , Takashi ASATANI
Abstract: A thermoelectric conversion device includes: at least one thermoelectric conversion element which is provided on a specific plane, and a heat transfer part which is thermally connected to the at least one thermoelectric conversion element, wherein the heat transfer part includes a separation portion which is disposed with a gap between the heat transfer part and at least a portion of the at least one thermoelectric conversion element, and a heat transfer portion which protrudes toward a side facing the at least one thermoelectric conversion element in a state where a portion thereof on a side opposite to the side facing the at least one thermoelectric conversion element is recessed, and is thermally connected to the at least one thermoelectric conversion element via the heat transfer portion.
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公开(公告)号：US20160240761A1
公开(公告)日：2016-08-18
申请号：US15018024
申请日：2016-02-08
Applicant: TDK CORPORATION
Inventor： Kazuya MAEKAWA , Takashi ASATANI
Abstract: A thermoelectric device includes a semiconductor stacked thin film including a SiGe layer and a Si layer in contact with the SiGe layer. The SiGe has a Si:Ge composition ratio by atomic number ratio within a range of 85:15 to 63:37. The stacked thin film has a plurality of stacked structures each having the SiGe layer and the Si layer.
Abstract translation: 热电装置包括具有与SiGe层接触的SiGe层和Si层的半导体层叠薄膜。 SiGe在85:15至63:37的范围内具有以原子序数比计的Si：Ge组成比。 叠层薄膜具有多个层叠结构，每个层叠结构具有SiGe层和Si层。
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