公开(公告)号：US11967769B2

公开(公告)日：2024-04-23

申请号：US17519435

申请日：2021-11-04

Applicant: AGC Inc.

Inventor： Toshiki Sayama ,  Ryota Okuda ,  Minami Hagiwara ,  Yusuke Sato ,  Takeshi Motegi

IPC: H01Q21/06 ,  H01Q1/12 ,  H01Q5/371 ,  H01Q9/04

CPC classification number: H01Q21/065 ,  H01Q5/371 ,  H01Q9/0407 ,  H01Q9/0421 ,  H01Q1/1271

Abstract: A planar antenna includes a dielectric layer including a first surface and a second surface on a side opposite from the first surface, an antenna conductor provided on the first surface, a ground conductor provided on the first surface or the second surface, or provided on both of the first surface and the second surface, and a transmission line including a signal line that is connected to the antenna conductor or provided in proximity to the antenna conductor, wherein a dielectric portion of the dielectric layer that is in contact with the signal line has a loss tangent of 0.007 or less at 28 GHz.

公开(公告)号：US11774841B2

公开(公告)日：2023-10-03

申请号：US17072229

申请日：2020-10-16

Applicant: AGC Inc.

Inventor： Yukihiro Tao ,  Naruki Yamada ,  Osamu Iwata ,  Yoshinori Iguchi ,  Yusuke Sato ,  Yoko Mitsui ,  Tsuneo Ichimatsu

IPC: G03B21/62 ,  B29D11/00 ,  G03B21/625 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/60 ,  B29K701/12

CPC classification number: G03B21/62 ,  B29D11/00269 ,  G03B21/56 ,  G03B21/60 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  B29K2701/12

Abstract: There are provided a video projecting structure, which is capable of having not only transparency but also high visibility of a video, a process for producing the same, and a video display system including the video projection structure.
A video projecting structure includes a first transparent layer having irregularities disposed on a surface thereof, a reflective layer disposed on the surface of the first transparent layer, and a second transparent layer disposed on the reflective layer; wherein when a surface of the first transparent layer opposite to the reflective layer is defined as a reference surface, the irregularities include a plurality of slant surfaces slant to the reference surface and reflecting light from a video; wherein when a first direction, a second direction and a third direction are defined such that the first direction is perpendicular to a normal direction of the reference surface, the slant surfaces extend in the first direction, the second direction is orthogonal to the first direction, the slant surfaces are arrayed in the second direction, and the third direction is a direction in which the slant surfaces have an average slant angle θ to the reference surface in section in the second direction; the irregularities include a portion which is configured such that when an average spacing Sm1 of the irregularities in the first direction, an average spacing Sm2 of the irregularities in the second direction and an average spacing Sm3 of the irregularities in the third direction are such that Sm2>Sm1 and Sm3>Sm1 are met, and Sm2 is maximum; and wherein the irregularities include a portion which is configured such that when a frequency distribution of inclinations of the irregularities in the second direction to the reference surface is measured in 0.25° divisions in every distance of 1 mm in order that the frequencies are represented as distances, the absolute value of a median value in the frequency distribution is a value other than 0°.

公开(公告)号：US11106125B2

公开(公告)日：2021-08-31

申请号：US16837022

申请日：2020-04-01

Applicant: AGC Inc.

Inventor： Naruki Yamada ,  Yukihiro Tao ,  Tsuneo Ichimatsu ,  Yusuke Sato

IPC: G03B21/62 ,  B60K35/00 ,  G02B5/18 ,  G03B21/602 ,  G02B5/04 ,  G03B21/56 ,  G03B21/60 ,  G03B21/625 ,  H04N9/31

Abstract: A transparent screen, wherein a direction normal to a reference surface is defined as a first direction, a direction which is perpendicular to the first direction and in which each reflective inclined surface extends as seen from the first direction is defined as a second direction, and a direction which is perpendicular to the first direction and the second direction and in which the reflective inclined surfaces are arranged side by side is defined as a third direction, and in at least a part of an image projection area, to which the image is projected, in a section perpendicular to the second direction, the reflective inclined surfaces are formed so that inclination angles of the reflective inclined surfaces, measured on a per-respective reflective inclined surface basis, decrease, in a stepwise manner or continuously, away from one end in the third direction toward another end in the third direction.

公开(公告)号：US20200233297A1

公开(公告)日：2020-07-23

申请号：US16837022

申请日：2020-04-01

Applicant: AGC Inc.

Inventor： Naruki Yamada ,  Yukihiro Tao ,  Tsuneo Ichimatsu ,  Yusuke Sato

IPC: G03B21/62 ,  G02B5/18 ,  B60K35/00

Abstract: A transparent screen, wherein a direction normal to a reference surface is defined as a first direction, a direction which is perpendicular to the first direction and in which each reflective inclined surface extends as seen from the first direction is defined as a second direction, and a direction which is perpendicular to the first direction and the second direction and in which the reflective inclined surfaces are arranged side by side is defined as a third direction, and in at least a part of an image projection area, to which the image is projected, in a section perpendicular to the second direction, the reflective inclined surfaces are formed so that inclination angles of the reflective inclined surfaces, measured on a per-respective reflective inclined surface basis, decrease, in a stepwise manner or continuously, away from one end in the third direction toward another end in the third direction.