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公开(公告)号：US10962702B2
公开(公告)日：2021-03-30
申请号：US16590831
申请日：2019-10-02
Inventor： Shigeru Yamane , Hideaki Eto , Wahei Agemizu , Masahiro Kasano , Go Nakatani , Hiroshi Morioka
Abstract: An input device includes: a light source that emits light; a first sheet including a design portion; a second sheet having a conductive pattern on which the light source is mounted and in which a touch sensor electrode is disposed in a position different from the light source; a body that is sandwiched between the first sheet and the second sheet to be integral therewith, and transmits the light emitted by the light source; and a guide disposed in a light path from the light source to the design portion, the guide guiding light transmitting through an inside of the body toward the design portion and being distinguished from the body. The light source and the light guide are disposed along a surface of the second sheet on a side facing the body. The body is integral with the light source and the light guide and encapsulates them.
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公开(公告)号：US11940647B2
公开(公告)日：2024-03-26
申请号：US18363188
申请日：2023-08-01
Inventor： Yosuke Araki , Wahei Agemizu , Kazumasa Takata , Masaru Fujita
IPC: F21V8/00
CPC classification number: G02B6/0046 , G02B6/0038
Abstract: Light control body (6) has first incident surface (7) and first reflection surface (9). First incident surface (7) condenses part of light emitted from light source (1) and emits the light toward incident surface (3) of light guide plate (2). First reflection surface (9) reflects the light that is emitted from light source (1) and does not pass through first incident surface (7), and emits the light toward incident surface (3) of light guide plate (2). First focal position (11) of first incident surface (7) and second focal position (12) of first reflection surface (9) are set at positions that are different from each other and away from the light emission surface of light source (1).
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公开(公告)号：US20180267227A1
公开(公告)日：2018-09-20
申请号：US15890942
申请日：2018-02-07
Inventor： Kazumasa Takata , Wahei Agemizu , Kenji Takamoto
IPC: F21V8/00
CPC classification number: G02B6/0036 , G02B6/003 , G02B6/0055 , G02B6/006 , G02B6/0068
Abstract: A display apparatus includes: a light guide plate; a light source that causes light to be incident on an end surface of the light guide plate; a hiding plate that is provided on a side of an emission surface of the light guide plate, and that includes a light transmission part which transmits light emitted from the emission surface and a light shielding part which has lower light transmittance than the light transmission part; and a colored board that has light reflectance closer to light reflectance of the light shielding part than light reflectance of the light transmission part in each wavelength, and that is provided on a side of a reflection surface of the light guide plate so as to overlap the light transmission part of the hiding plate when viewed from a direction perpendicular to the emission surface of the light guide plate.
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公开(公告)号：US11656473B2
公开(公告)日：2023-05-23
申请号：US17235088
申请日：2021-04-20
Inventor： Kazumasa Takata , Masaru Fujita , Wahei Agemizu , Yosuke Araki , Tomohisa Sakaguchi
CPC classification number: G02B27/0972 , B60K37/02 , G02B27/0101 , B60K2370/1529 , B60K2370/347
Abstract: An optical system includes a light guide member having a light-incident surface, a first surface, a light-emitting surface facing the first surface, a first end surface, a second end surface, a plurality of collimating lenses disposed on the light-incident surface and being arranged along a first direction, and a plurality of prism pieces. The plurality of prism pieces include two or more prism pieces having different inclination angles with respect to the light-incident surface depending on positions of the prism pieces in at least the first direction, and each of the inclination angles of the two or more prism pieces is an angle formed between the first direction and the longitudinal axis of a corresponding prism piece. Each of the inclination angles of the two or more prism pieces increases as the corresponding prism piece is positioned closer to any of the first end surface or the second end surface.
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公开(公告)号：US11507229B2
公开(公告)日：2022-11-22
申请号：US17098901
申请日：2020-11-16
Inventor： Hiroshi Morioka , Takashi Morimoto , Hideaki Eto , Tomoya Moriura , Wahei Agemizu
IPC: G06F3/044 , H01L25/075 , H01L33/60 , H01L33/48 , H01L33/62 , H01L33/56 , B29C45/16 , B29C45/14 , B29L31/34
Abstract: A molded body for an electronic function includes a first film in which one surface thereof constitutes an external appearance surface, a second film in which an electronic component is mounted on a surface thereof facing a surface of the first film opposite to the external appearance surface, and a first resin that fills a space between the first film and the second film. The first resin has a cavity, and the cavity is filled with a second resin, and the electronic component is disposed in the cavity and surrounded by the second resin.
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Patent Agency Ranking
公开(公告)号：US10527776B2
公开(公告)日：2020-01-07
申请号：US16183776
申请日：2018-11-08
Inventor： Kazumasa Takata , Wahei Agemizu
IPC: F21V8/00
Abstract: A display device includes a light guide plate, a first light source, a second light source, and a light transmitting portion. The light guide plate includes a first reflecting prism and a second reflecting prism. The first reflecting prism has an inclined surface that reflects the light incident from the first side surface toward the main surface. The second reflecting prism has an inclined surface that reflects the light incident from the second side surface toward the main surface. The longitudinal direction of the inclined surface of the first reflecting prism is parallel or substantially parallel to a line connecting the second light source and the inclined surface of the first reflecting prism.
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公开(公告)号：US10345503B2
公开(公告)日：2019-07-09
申请号：US15730703
申请日：2017-10-11
Inventor： Kazumasa Takata , Kenji Takamoto , Wahei Agemizu
Abstract: A display device includes a light guide plate, and light sources allowing light to be incident on a first side surface and a second side surface of the light guide plate. First incidental side surface light from the first light source is reflected to an upper surface side by first reflection parts formed on a bottom surface to display a first pattern, and second incidental side surface light from the second light source is reflected to the upper surface side by second reflection parts formed on the bottom surface to display a second pattern. Slopes are provided at parts of the first side surface and the second side surface of the light guide plate, and light reflected on a facing reflection surface and propagating in the light guide plate again is reduced by the slopes.
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公开(公告)号：US12204100B2
公开(公告)日：2025-01-21
申请号：US18375665
申请日：2023-10-02
Inventor： Wahei Agemizu , Kazumasa Takata , Masaru Fujita , Tomohisa Sakaguchi , Hiroki Hara , Masaki Amie
Abstract: An optical system includes a light guide member having an incident surface, a first surface and a light emergent surface; and at least one prism provided on the first surface and configured to reflect light received by the incident surface and travelling inside the light guide member, towards the light emergent surface. The light guide member provides an optical path along which the light that has entered through the incident surface is directly reflected from the prism and allowed to emerge from the light emergent surface. The light guide member also provides another optical path along which the light that has entered through the incident surface is once reflected from the second surface, reflected again from the prism, and then allowed to emerge from the light emergent surface. The optical system is configured to be coupled to a light source, to illuminate a display system which projects a virtual image onto a target space.
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公开(公告)号：US11835719B2
公开(公告)日：2023-12-05
申请号：US17509484
申请日：2021-10-25
Inventor： Wahei Agemizu , Kazumasa Takata , Masaru Fujita , Tomohisa Sakaguchi , Hiroki Hara , Masaki Amie
CPC classification number: G02B27/0101 , B60K35/00 , G02B6/003 , G02B6/0036 , B60K2370/1529 , B60K2370/23 , B60K2370/336 , G02B2027/0118
Abstract: An optical system includes a light guide member having a light incident surface, a first surface, and a light emergent surface facing the first surface; and a prism provided in the first surface for reflecting light passing inside the light guide member towards the light emergent surface. The light guide member includes a direct optical path, along which the light that has entered the light guide member through the incident surface is directly reflected from the prism and allowed to emerge from the light emergent surface. At least one of the first surface or the light emergent surface includes a luminous intensity distribution control member configured to control a luminous intensity distribution of light to be extracted from the light emergent surface. The luminous intensity distribution control member includes a Fresnel lens.
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公开(公告)号：US10768354B2
公开(公告)日：2020-09-08
申请号：US16267433
申请日：2019-02-05
Inventor： Kazumasa Takata , Wahei Agemizu
IPC: F21V8/00
Abstract: A display device includes light guide plate, a light source, and a concealing plate. The light guide plate propagates light incident from an incident end surface, reflects the light with a prism provided on a reflection surface, and causes the light to emit from an emission surface facing the reflection surface. The light guide plate has a plurality of inclined surfaces on a side end surface excluding an incident end surface of the light guide plate and a facing end surface facing the incident end surface, and a line segment connecting a center of sides of the plurality of inclined surfaces and a center of the light source, and the sides of the inclined surfaces are substantially perpendicular.
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