Multiple-viewing-point floating image display device
AssigneeNational Institute of Information and Communications Technology
InventorSatoshi Maekawa
Life of this patent
Estimating the term…
Abstract
A multiple viewing-point floating imaging device is comprised of a plurality of dihedral corner reflectors 1 arranged along an optical device plane S and rotated around an axis of rotation perpendicular to said plane, to point in a plurality of directions along said plane, whereby light rays from an object O near to said plane are reflected once each by the two mirrors of said dihedral corner reflectors while passing through said plane, forming a real image P in a plane-symmetric position, visible from multiple viewing points V1 and V2 by multiple observers simultaneously.
Claims12
A multiple viewing-point floating imaging device comprising:
- several dihedral corner reflectors consisting of pairs of mutually perpendicular specular surfaces, said dihedral corner reflectors being formed along a single optical device plane capable of passing light through it, wherein
- said dihedral corner reflectors being rotated in a plurality of directions around a common axis of rotation that is perpendicular to the said single optical device plane,
- whereas light emitted from an object to be projected that is placed to one side of the said single optical device plane might pass through said single optical device plane by being reflected once each from the two specular surfaces comprising said dihedral corner reflectors,
- whereby forming on the side of said single optical device plane opposite to the said object in a planar symmetric position an image of the said object, said image being observable from multiple viewing points.
Dependencies are inferred from the claim text.