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公开(公告)号：US20250016459A1
公开(公告)日：2025-01-09
申请号：US18894712
申请日：2024-09-24
Inventor： Shunsuke TOMOMATSU , Kazuhiro Yamada
Abstract: An imaging apparatus captures an image of a person passing through a predetermined space, using a sub-terahertz wave. The imaging apparatus includes an emitter that emits the sub-terahertz wave to the person, and a detection device. The detection device includes: an optical system that images a reflected wave which is the sub-terahertz wave emitted from the emitter and reflected by the person; and a plurality of pixels that are disposed in a planar arrangement and each receive the reflected wave imaged by the optical system, and generates an image based on cumulative intensities, each being obtained by accumulating an intensity of the reflected wave received by each of the plurality of pixels for a predetermined time, and the planar arrangement of the plurality of pixels. The predetermined time is λ/1778 seconds or longer, when the wavelength of the sub-terahertz wave is taken as λ mm.
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公开(公告)号：US09575576B2
公开(公告)日：2017-02-21
申请号：US14642682
申请日：2015-03-09
Inventor： Kazuhiro Yamada
IPC: G06F3/041 , G06F3/0354 , G06F3/038 , G06F3/03
CPC classification number: G06F3/03545 , G06F3/0321 , G06F3/038
Abstract: A display control system disclosed herein includes a display device including a display surface for displaying an image, a plurality of first coding patterns representing positions on the display surface being provided to overlap on the display surface; an input unit including an input surface containing a plurality of second coding patterns different from the first coding patterns, the second coding patterns representing the positions on the display surface; and a reading device reading the first and second coding patterns. Each of the first coding patterns represents the position on the display surface where the corresponding first coding pattern is positioned, and each of the second coding patterns represents the position on the display surface associated with the corresponding second coding pattern.
Abstract translation: 本文公开的显示控制系统包括：显示装置，包括用于显示图像的显示面;多个第一编码图案，其表示位于所述显示面上，重叠在所述显示面上的位置; 输入单元，包括包含与第一编码模式不同的多个第二编码模式的输入表面，第二编码模式表示显示表面上的位置; 以及读取第一和第二编码模式的读取装置。 第一编码模式中的每一个表示显示表面上相应的第一编码模式所在的位置，并且每个第二编码模式表示与对应的第二编码模式相关联的显示表面上的位置。
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公开(公告)号：US12259320B2
公开(公告)日：2025-03-25
申请号：US17940372
申请日：2022-09-08
Inventor： Yosuke Asai , Kazuhiro Yamada , Hiroshi Yamaguchi
IPC: G01N21/3581 , G01B11/30
Abstract: An imaging device includes: an area light source including an emission surface from which a sub-terahertz wave is emitted to a measurement target; and a detector including an image sensor that receives a reflected wave generated by the measurement target reflecting the sub-terahertz wave emitted from the emission surface. The area light source includes: at least one point light source that emits a sub-terahertz wave; and a reflector that reflects the sub-terahertz wave emitted from the at least one point light source, to generate a sub-terahertz wave to be emitted from the emission surface. The reflector has a reflection surface that is a bumpy surface which includes two or more frequency components in a spatial frequency range and whose roughness curve element mean length RSm is at least 0.3 mm.
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Patent Agency Ranking
公开(公告)号：US09791697B2
公开(公告)日：2017-10-17
申请号：US15360258
申请日：2016-11-23
Inventor： Hiroshi Yamaguchi , Kazuhiro Yamada
IPC: G02B27/01 , G03B21/625 , G02B27/14 , G02B5/02
CPC classification number: G02B27/0101 , G02B5/0221 , G02B5/0284 , G02B27/142 , G02B2027/013 , G03B21/625
Abstract: A screen disclosed herein is a screen having a reflectivity, which causes diffuse reflection of an image projected by a projector, and a transparency, which allows transmission of a background, and including an uneven sheet, a semi-transmissive reflecting layer, and a transparent layer. The uneven sheet includes a transparent material, and has one principal surface that is flat and the other principal surface that is an uneven surface provided with a plurality of recesses and protrusions. The first principal surface and the second principal surface are opposite to each other. The reflecting layer is formed on the uneven surface of the uneven sheet. The transparent layer covers the reflecting layer. The reflecting layer is a thin film having a thickness ranging from 2 nm to 1 μm.
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公开(公告)号：US09891434B2
公开(公告)日：2018-02-13
申请号：US15356805
申请日：2016-11-21
Inventor： Hiroshi Yamaguchi , Kazuhiro Yamada
IPC: G03B21/10 , G03B21/604 , G03B21/60 , H04N9/31 , G02B27/01 , G03B21/62 , G02B27/28 , G02B5/30 , G02B5/02 , G02B27/22
CPC classification number: G02B27/0101 , G02B5/0221 , G02B5/0294 , G02B5/30 , G02B5/3083 , G02B27/2292 , G02B27/286 , G02B2027/012 , G03B21/10 , G03B21/60 , G03B21/604 , G03B21/62 , H04N9/3141
Abstract: An image display system includes a projector, a transparent screen, and a polarization adjuster. The projector projects image light. The transparent screen diffuses the image light that has been projected, to display an image. The polarization adjuster adjusts the image light that is to enter the transparent screen so that the image light is p-polarized.
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公开(公告)号：US09665193B2
公开(公告)日：2017-05-30
申请号：US14964611
申请日：2015-12-10
Inventor： Kazuhiro Yamada , Hiroshi Yamaguchi , Kazuhiro Morioka
IPC: G06F3/038 , G06F3/0354 , G02B5/08 , G02B5/20 , G06F3/03
CPC classification number: G06F3/0386 , G02B5/0816 , G02B5/201 , G02B5/208 , G06F3/0321 , G06F3/03542
Abstract: A display panel according to the present disclosure is a display panel with which an optical pen can be used. The display panel includes: a position information pattern layer which causes the optical pen to identify a position on the display panel; a color filter layer including a color filter partitioned by a lattice structure; and a non-visible light reflection layer having a shape which diffuses and reflects a part of a non-visible light emitted from the optical pen. The non-visible light reflection layer is disposed between the position information pattern layer and the color filter layer, and an amount of light which is reflected by the non-visible light reflection layer and then enters the optical pen is larger than an amount of light which enters the optical pen through the non-visible light reflection layer after being transmitted through the color filter layer and then reflected.
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公开(公告)号：US12279026B2
公开(公告)日：2025-04-15
申请号：US17707331
申请日：2022-03-29
Inventor： Kazuhiro Yamada , Yosuke Asai , Hiroshi Yamaguchi
IPC: G01N21/3581 , H04N23/11
Abstract: An imaging device includes: a light source including an emission surface from which a sub-terahertz wave is emitted to a measurement target; and a detector including an image sensor that detects the intensity of a reflected wave generated by the measurement target reflecting the sub-terahertz wave emitted from the emission surface.
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公开(公告)号：US09442605B2
公开(公告)日：2016-09-13
申请号：US14592977
申请日：2015-01-09
Inventor： Kazuhiro Yamada , Takashi Yamada
IPC: G06F3/042 , G06F3/0354 , G02F1/1333 , G06F3/041 , G02F1/1335
CPC classification number: G06F3/0421 , G02F1/13338 , G02F1/133553 , G06F3/0317 , G06F3/03545 , G06F3/0416 , G06F3/042 , G06F2203/04109
Abstract: A display control system 100 includes: a display panel 220 that includes a pair of polarizing plates 250; a pattern layer 230 has formed therein a plurality of patterns 260; a light source 140 that emits light to be absorbed by the patterns 260; a reflector 240; an identification device 160 that reads the pattern 260 from the light which is emitted from the light source 140, is reflected on the reflector 240, and then passes through the display panel 220 and the pattern layer 230, and identifies a position, on the display surface, of the pattern 260; and a display controller 130 that controls display information in accordance with the position identified by the identification device 160. A transmittance of the pair of polarizing plates 250 at a peak wavelength of the light emitted from the light source 140 is not lower than 70%.
Abstract translation: 显示控制系统100包括：显示面板220，其包括一对偏振板250; 图案层230中形成有多个图案260; 发射由图案260吸收的光的光源140; 反射器240; 从光源140发射的光中读取图案260的识别装置160在反射器240上被反射，然后通过显示面板220和图案层230，并且在显示器上识别位置 图案260的表面; 以及显示控制器130，其根据由识别装置160识别的位置来控制显示信息。在从光源140发射的光的峰值波长处的一对偏振片250的透射率不低于70％。
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