Title:
IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/034131
Kind Code:
A1
Abstract:
Provided is a low-cost, compact image display device capable of displaying a suitable image using holograms. This image display device includes: a display unit in which a single-exposure hologram and a multiple-exposure hologram are arranged side by side; a plurality of optical units that emits light toward the single-exposure hologram and the multiple-exposure hologram; and a control unit that at least partially controls the amount of light emitted from the optical units. The control unit controls the amount of light emitted from the optical units such that the intensity of diffracted light emitted from the single-exposure hologram side and incident to an eye of an observer and the intensity of diffracted light emitted from the multiple-exposure hologram side and incident to the eye of the observer approach one another, with the boundary between the single-exposure hologram and the multiple-exposure hologram interposed therebetween.
Inventors:
INAGAKI YOSHIHIRO (JP)
Application Number:
PCT/JP2017/027605
Publication Date:
February 22, 2018
Filing Date:
July 31, 2017
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B27/02; B81B7/02; G09G3/02; G09G3/20; H02N2/12; H04N5/64; G02B26/08; G02B26/10
Domestic Patent References:
| WO2010061835A1 | 2010-06-03 | |||
| WO2015194377A1 | 2015-12-23 |
Foreign References:
| JP2000193909A | 2000-07-14 | |||
| JP2010237309A | 2010-10-21 | |||
| US20160195720A1 | 2016-07-07 |
Other References:
See also references of EP 3502765A4
Attorney, Agent or Firm:
TAMURA Keijiro et al. (JP)
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