US 12,464,109 B2
Air floating video display apparatus
Takuya Shimizu, Kyoto (JP); Kazuhiko Tanaka, Kyoto (JP); Koji Hirata, Kyoto (JP); Koji Fujita, Kyoto (JP); and Katsuyuki Watanabe, Kyoto (JP)
Assigned to Maxell, Ltd., Kyoto (JP)
Appl. No. 18/840,145
Filed by Maxell, Ltd., Kyoto (JP)
PCT Filed Feb. 8, 2023, PCT No. PCT/JP2023/004232
§ 371(c)(1), (2) Date Aug. 21, 2024,
PCT Pub. No. WO2023/162690, PCT Pub. Date Aug. 31, 2023.
Claims priority of application No. 2022-025857 (JP), filed on Feb. 22, 2022.
Prior Publication US 2025/0168319 A1, May 22, 2025
Int. Cl. H04N 13/366 (2018.01); G02B 30/56 (2020.01); H04N 13/172 (2018.01); H04N 13/275 (2018.01); H04N 13/30 (2018.01); H04N 13/302 (2018.01); H04N 13/398 (2018.01)
CPC H04N 13/366 (2018.05) [G02B 30/56 (2020.01); H04N 13/172 (2018.05); H04N 13/275 (2018.05); H04N 13/302 (2018.05); H04N 13/398 (2018.05); H04N 2013/40 (2018.05)] 5 Claims
OG exemplary drawing
 
1. An air floating video display apparatus comprising:
a video display configured to display a video;
a retroreflection plate which a light flux from the video display enters;
an imager; and
a controller,
wherein the light flux reflected by the retroreflection plate forms an air floating video as a real image in air,
wherein the controller can set a virtual position of a 3D model relative to the air floating video as a real image,
wherein the video display displays a video resulting from a rendering process of 3D data of the 3D model based on a viewpoint position of a user detected from an image captured by the imager and the virtual position of the 3D model, and a video for stereoscopic viewing based on motion parallax for the 3D model is displayed in the air floating video as a real image, and
wherein the virtual position of the 3D model set by the controller is a position shifted relative to a position of the air floating video which is a real image formed in air, in a direction opposite to a traveling direction of principal ray when the light flux reflected by the retroreflection plate forms the air floating video.