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公开(公告)号：US11486559B2
公开(公告)日：2022-11-01
申请号：US17284788
申请日：2019-09-17
申请人： OMRON Corporation
IPC分类号： F21S43/243 , F21S43/249 , F21S43/14 , F21S43/239 , F21V3/06
摘要： A light emitting device is provided to a vehicle. The light emitting device includes a display portion and a light emitting portion. The display portion includes a first light source and a light guide plate that guides light from the first light source to form a first image in a space. The light emitting portion includes a second light source and a light emitting region that overlaps with the first image in a vehicle front-rear direction at a position close to the first image and emits light from the second light source to the outside of the vehicle.
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公开(公告)号：US11069178B2
公开(公告)日：2021-07-20
申请号：US16614718
申请日：2018-07-24
申请人： Omron Corporation
发明人： Shohei Hisaki , Junya Fujita , Jun Kishimoto , Shogo Ikeda , Masanori Mori , Yoshihiko Takagi
摘要： A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources. The light guide plate 2 includes a plurality of prisms arrayed on one of surfaces of the light guide plate along the plurality of patterns, the plurality of prisms reflecting light toward the other surface of the light guide plate, the light being emitted from a light source corresponding to the pattern and being incident on the light guide plate from the incident surface.
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公开(公告)号：US20200184762A1
公开(公告)日：2020-06-11
申请号：US16614718
申请日：2018-07-24
申请人： Omron Corporation
发明人： Shohei Hisaki , Junya Fujita , Jun Kishimoto , Shogo Ikeda , Masanori Mori , Yoshihiko Takagi
摘要： A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources. The light guide plate 2 includes a plurality of prisms arrayed on one of surfaces of the light guide plate along the plurality of patterns, the plurality of prisms reflecting light toward the other surface of the light guide plate, the light being emitted from a light source corresponding to the pattern and being incident on the light guide plate from the incident surface.
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公开(公告)号：US20200041714A1
公开(公告)日：2020-02-06
申请号：US16340238
申请日：2017-09-15
申请人： Omron Corporation
发明人： Yoshihiko Takagi
摘要： A light guide plate is transparent to visible light and is formed into a plate shape. The light guide plate includes a plurality of prisms 21 provided in a first region 22 on one surface 2b of the light guide plate, each of the plurality of prisms 21 including a reflection surface 21a that reflects the visible light, which is emitted from the light source 3 and enters the light guide plate 2 through an incoming surface 2a, toward the other surface 2c of the light guide plate 2. Then, for each of a plurality of first partial regions (22-1 to 22-n) in the first region 22, at least one of a direction of the reflection surface 21a of each prism 21 arranged in the first partial region and a ratio of a total of areas of the reflection surfaces 21a of each prism 21 to the first partial region is set according to an amount of light traveling from the first partial region toward a predetermined viewpoint such that brightness of the first region 22 changes spatially irregularly as seen from the predetermined viewpoint.
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公开(公告)号：US09869812B2
公开(公告)日：2018-01-16
申请号：US14553836
申请日：2014-11-25
申请人： OMRON Corporation
IPC分类号： F21V8/00
CPC分类号： G02B6/0068 , G02B6/0036 , G02B6/0061
摘要： A light guide body configured to guide at least first and second light having different colors that enter the light guide body from at least one light source has a light exit surface having a light emitting region that emits the first light and the second light from the at least one light source, and a reflection region that reflects, toward the light emitting region, the first light and the second light that enters the light guide body. The reflection region has a first pattern region where a plurality of first reflection patterns that reflects the first light are arranged, and a second pattern region where a plurality of second reflection patterns that reflects the second light are arranged. When viewed from a direction perpendicular to the light exit surface, the first pattern region and the second pattern region at least partially overlapping with each other.
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公开(公告)号：US09417378B2
公开(公告)日：2016-08-16
申请号：US14470705
申请日：2014-08-27
申请人： OMRON Corporation
CPC分类号： G02B6/006 , G02B6/0035 , G02B6/0036 , G02B6/0038 , G02B6/0068
摘要： A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.
摘要翻译： 包括在面对光出射面的面对面的反射区域中的多个反射图案的光导，该区域对应于发光区域，并且反射图案被布置成使得由反射图案反射的光量， 从发光区域射出的到达观察光出射面的观察者根据发光区域的位置连续地变化。
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公开(公告)号：US11412596B2
公开(公告)日：2022-08-09
申请号：US16846399
申请日：2020-04-12
申请人： OMRON Corporation
发明人： Masayuki Shinohara , Yuto Mori , Yoshihiko Takagi , Gouo Kurata , Tsuyoshi Arai , Yasuhiro Tanoue
摘要： A display switching device (10) is provided, which switches a display image (P) by switching irradiation of lights from positions of a plurality of light sources (7). The display switching device includes: a lens array (6) in which a plurality of lenses are arranged; and a display part (45) including a plurality of pixel regions (45a) arranged to include a region through which a light, which is formed by condensing each of the lights emitted from the positions of the plurality of light sources (7) with each of the lenses of the lens array (6), passes. A transmittance in each of the pixel regions (45a) is set corresponding to a predetermined stationary pattern. A total area of the pixel regions (45a) in the display part (45) is 60% or less of a total area of a sum of the pixel regions (45a) and the pixel surrounding regions (45b).
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公开(公告)号：US20200233140A1
公开(公告)日：2020-07-23
申请号：US16489860
申请日：2017-11-28
申请人： Omron Corporation
摘要： To achieve more natural image expression. A display device (1) is provided with a light guide plate (4) which displays a predetermined image having a tone caused by changing the amount of light emitted from each of pixel regions including one or more light exit structures (43), and the amount of light emitted from the pixel regions displaying the tone in a predetermined range is randomly set so as to be a first light amount value or a second light amount value greater than the first light amount value.
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公开(公告)号：US10586421B2
公开(公告)日：2020-03-10
申请号：US15896120
申请日：2018-02-14
申请人： OMRON Corporation
IPC分类号： G07F17/32 , G09F13/00 , G09F13/18 , F21V8/00 , G02F1/1335 , H05B33/08 , F21W121/00 , A63F7/02
摘要： A light guide plate presents a plurality of patterns via prisms illuminated by light sources aligned along one sidewall of the light guide plate. Each light source corresponds to a different pattern. A storage unit stores lighting sequence information and a controller controls the turning on and off of the plurality of light sources in accordance with the lighting sequence information, thereby illuminating the patterns. Visible light emitted from the light sources to enters the light guide plate via an incidence surface. The prisms making up the patterns reflect only the visible light emitted from a light source corresponding to a particular pattern.
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公开(公告)号：US10401555B2
公开(公告)日：2019-09-03
申请号：US15596007
申请日：2017-05-16
申请人： OMRON Corporation
发明人： Junya Fujita , Yoshimasa Osumi , Yoshihiko Takagi
摘要： A light guide plate according to one or more embodiment is formed of a panel transparent to visible light, and includes: a plurality of first prisms arranged along one surface of the light guide plate and distributed in a first pattern to reflect the visible light emitted from a first light source and entering the light guide from an input surface toward another surface of the light guide plate; and a plurality of second prisms arranged in a second pattern to reflect the visible light emitted from a second light source and entering the light guide from the input surface toward said other surface of the light guide plate. Each first prism includes a reflection surface directly facing the first light source, and each second prism includes a reflection surface directly facing the second light source.
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