公开(公告)号：US20210337180A1

公开(公告)日：2021-10-28

申请号：US16341603

申请日：2017-11-21

Applicant: Omron Corporation

Inventor： Yuji Hirose ,  Yutaka Okayasu ,  Keiichiro Tanaka ,  Yoshimasa Osumi ,  Yasuhiro Tanoue ,  Mitsuru Okuda

IPC: H04N13/317 ,  H04N13/359 ,  G02B30/32

Abstract: A first stereoscopic image display device (2) is provided with a light guide plate (20) including a plurality of reflectors (31a, 31b, 31c), the first stereoscopic image display device (2) causing an observer to recognize an undistorted stereoscopic image even when the observer views a stereoscopic image from an angle being a high angle with respect to a direction normal to the front surface of the light guide plate. In a plan view from a direction vertical to an outgoing surface (21), when four quadrants are specified for each of the reflectors (31a, 31b, 31c), the four quadrants taking a position of each of the reflectors (31a, 31b, 31c) as an origin, the four quadrants being divided by two straight lines orthogonal to each other and inclined 45° with respect to a direction in which the incident light is incident on each of the reflectors (31a, 31b, 31c), light changed in the optical path by each of the reflectors (31a, 31b, 31c) is emitted to a quadrant adjacent to a quadrant on which incident light is incident.

公开(公告)号：US11340472B2

公开(公告)日：2022-05-24

申请号：US16341603

申请日：2017-11-21

Applicant: Omron Corporation

Inventor： Yuji Hirose ,  Yutaka Okayasu ,  Keiichiro Tanaka ,  Yoshimasa Osumi ,  Yasuhiro Tanoue ,  Mitsuru Okuda

IPC: G02B30/26 ,  H04N13/317 ,  H04N13/359 ,  G02B30/32

Abstract: A first stereoscopic image display device includes a light guide plate having a plurality of reflectors and causes an observer to recognize an undistorted stereoscopic image even when the observer views a stereoscopic image from a high angle with respect to a direction normal to the front surface of the light guide plate. In a plan view from a direction vertical to an outgoing surface, when four quadrants are specified for each of the reflectors, the four quadrants taking a position of each of the reflectors as an origin, the four quadrants being divided by two straight lines orthogonal to each other and inclined 45° with respect to a direction in which the incident light is incident on each of the reflectors, light changed in the optical path by each of the reflectors is emitted to a quadrant adjacent to a quadrant on which incident light is incident.

公开(公告)号：US12204203B2

公开(公告)日：2025-01-21

申请号：US17895110

申请日：2022-08-25

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Gouo Kurata ,  Yuto Mori ,  Masao Mishina ,  Yutaka Okayasu ,  Yasuhito Uetsuji ,  Hayato Yoshida

IPC: G02F1/1335 ,  G02B13/00 ,  G02F1/13

Abstract: A display switching device according to one or more embodiments may include a lens array including an array of a plurality of lenses and a display unit. Light from each of the plurality of light source positions transmits through a different position on the display unit and is focused by a corresponding lens. A transmittance on the display unit through which the light transmits differs depending on a position on the display unit. The transmittance at a position of a plurality of positions on the display unit is a transmittance of one of three or more types.