Title:
VOLUMETRIC DISPLAY
Document Type and Number:
WIPO Patent Application WO/2021/044990
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a volumetric display that is capable of rapid image presentation. The focal length of a resonance-type liquid lens 2 is periodically adjusted using resonance of a liquid. An image projection unit 1 projects an image toward the viewpoint position of a user via the resonance-type liquid lens 2. Furthermore, the image projection unit 1 projects an image toward the viewpoint position within a time that is less than 1/10 the cycle of fluctuation of the focal length. The image projection unit 1 is configured from an LED and a DMD, for example.
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Inventors:
OKU HIROMASA (JP)
Application Number:
PCT/JP2020/032814
Publication Date:
March 11, 2021
Filing Date:
August 31, 2020
Export Citation:
Assignee:
UNIV GUNMA NAT UNIV CORP (JP)
International Classes:
G02B3/14; G02B30/54; G02B27/02; H04N13/322; H04N13/344; H04N13/365; H04N13/393; H04N13/398
Foreign References:
| US20170301313A1 | 2017-10-19 | |||
| JP2016099631A | 2016-05-30 | |||
| JP2009535665A | 2009-10-01 | |||
| JP2004163644A | 2004-06-10 |
Attorney, Agent or Firm:
NARUSE Shigeo (JP)
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