Presentation device including a plate

Patent metadata

Field	Value
Publication number	US-9684179-B2
Application number	US-201314442030-A
Country	US
Kind code	B2
Filing date	Nov 12, 2013
Priority date	Nov 27, 2012
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A presentation device according to the present invention includes a panel-shaped image-forming optical element and a flat panel display, and forms a video picture (image) appearing on the display as a spatial image in space over the image-forming optical element. Between the upper surface of the image-forming optical element and the spatial image, a plate (guide plate) having an opening corresponding to the planar shape of the image-forming optical element is disposed at an attitude inclined upwardly from the front toward the back side with respect to the image-forming optical element, whereby the spatial image floats up through the opening of the guide plate. This allows anyone to view a three-dimensional spatial image rich in a sense of depth without experience and skill automatically in an appropriate direction from an appropriate position.

First claim

The invention of claimed is:

1. A presentation device comprising:
a panel-shaped image-forming optical element;
a flat panel display; and
a plate,
wherein a spatial image, which corresponds to an image appearing on the flat panel display disposed on one surface side of the image-forming optical element, is formed standing up obliquely in space on the other surface side of the image-forming optical element due to an image-forming function of the image-forming optical element, and
wherein the plate has an opening corresponding to the planar shape of the image-forming optical element and is provided between the other surface of the image-forming optical element and the spatial image, the plate being disposed at an attitude inclined upwardly from the front toward the back side with respect to the image-forming optical element, whereby the spatial image passes through the opening of the plate and stands up obliquely in space on the other surface side of the image-forming optical element.

2. The presentation device according to claim 1 , wherein the panel-shaped image-forming optical element is a micromirror array.

Assignees

• Nitto Denko Corp

Inventors

• Juni Noriyuki

Classifications

• G02B30/27 Primary

  involving lenticular arrays · CPC title

• G02B30/56 Primary

  by projecting aerial or floating images · CPC title

• G02B30/40

  giving the observer of a single two-dimensional [2D] image a perception of depth · CPC title

• G02B27/0101 Primary

  characterised by optical features (G02B27/0172 takes precedence) · CPC title

• H04N13/30

  Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00) · CPC title