SPACE FLOATING VIDEO DISPLAY DEVICE

WIPO Patent Application WO/2023/008125

A1

Provided is technology that is suited for use in a vehicle and with which it is possible to display a space floating video with high visibility. The present invention contributes to "3. Ensure good health and well-being for all" and "9. Build infrastructure for industry, and technical innovation" which are sustainable development goals. This space floating video display device comprises a housing 106 inside which a video display device 1 is stored, and which can be attached to the ceiling or a position near the rearview mirror in a vehicle. A polarization separation member 101 and a retroreflective member 2 provided with a λ/4 plate 21 are disposed at a prescribed angle and are provided outside the housing 106. Video light of a specific polarization from the video display device 1 is reflected by the polarization separation member 101, retroreflected by the retroreflective member 2, and subjected to polarization conversion by passing through the λ/4 plate 21. The video light after the polarization conversion passes through the polarization separation member 101 and displays a space floating video 3 at a prescribed position.

TAKAHASHI HIROAKI (JP)
HIRATA KOJI (JP)
FUJITA KOJI (JP)
OZAWA YASUYUKI (JP)
KAWASAKI TAKAHITO (JP)
UKAI MUTSUKI (JP)

PCT/JP2022/026866

February 02, 2023

July 06, 2022

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MAXELL LTD (JP)

G02B30/56

WO2019004202A1	2019-01-03
WO2016088683A1	2016-06-09

US20150248014A1	2015-09-03
JP2021047440A	2021-03-25
JP2008304783A	2008-12-18
JP2017167224A	2017-09-21

TSUTSUI & ASSOCIATES (JP)

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