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Patent Searching and Data


Title:
IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/149511
Kind Code:
A1
Abstract:
An image display device according to an embodiment of the present technology is provided with a plurality of display units. Each of the plurality of display units comprises a screen for forming an object image, and a diffraction optical element that has a first surface and a second surface on the side opposite to the first surface, diffracts image light of the object image incident on the first surface, emits the diffracted image light from the first surface, and displays a virtual image of the object image on the second surface side such that the virtual image overlaps a background. The plurality of diffraction optical elements included in the plurality of display units are each disposed so as to cover at least a part of the periphery of a predetermined axis with the second surface facing the predetermined axis.

Inventors:
KASEGAWA RYO (JP)
SHIMIZU KAZUE (JP)
Application Number:
PCT/JP2021/000467
Publication Date:
July 29, 2021
Filing Date:
January 08, 2021
Export Citation:
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Assignee:
SONY GROUP CORP (JP)
International Classes:
G02B27/02; G02B5/18; G02B5/32; H04N5/64; H04N5/74
Foreign References:
JP2017009720A2017-01-12
US4309070A1982-01-05
KR20180032317A2018-03-30
Attorney, Agent or Firm:
OMORI, Junichi (JP)
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