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US 8,985,774 B2Granted
Floating image interaction device and its program
AssigneeNational Institute of Information and Communication Technology
InventorSatoshi Maekawa
Life of this patent
Estimating the term…
Abstract
A floating image interaction device includes an imaging optical system projecting a floating real image of an object and an user object detecting means for obtaining information about the user accessing the floating real image; means to realize interactive response by the real image or by haptic feedback to actions by the user; and related computer programs.
Claims20
A floating image interaction device, comprising:
- distortion-free imaging optical system including a surface at which paths of light rays are bent by means of mirror surface reflection;
- and
- a user object detecting means,
- wherein for an object to be projected placed to one side of said surface, said imaging optical system forms a real image of said object on the opposite side of said surface with front and back being reversed,
- the imaging optical system is for forming a two-dimension real image of a two-dimension object to be projected, and a three-dimensional real image of a three-dimension object to be projected;
- the real image can be observed from oblique direction of the surface;
- and said user object detecting means capable of detecting the position, or the position and shape of user objects approaching said real image.
4 more elements
A floating image interaction device, comprising:
- a substrate including a plurality of dihedral corner reflectors, the substrate transmitting light rays therethrough in a distortion-free manner such that the light rays are bent by the dihedral corner reflectors by means of mirror surface reflection, the substrate having a first surface and a second surface, wherein when an object to be projected is placed at a side of the first surface, an real image is formed reversely at a side of the second surface;
- and
- a user object detecting means for detecting position or shape of the object.
Dependencies are inferred from the claim text.