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US 5,861,993 AGranted
Apparatus for displaying an image
AssigneeCentral Research Laboratories Limited
InventorsIan Alexander Shanks, Christoph Dobrusskin
Life of this patent
Estimating the term…
Abstract
Apparatus for displaying an image suspended in space above a horizontal surface such as a tabletop or vehicle dash-board, of an original image below the surface, comprises a beam-splitter window in the surface and a retroreflector below the surface in a path for light reflected by the beamsplitter. The original image may for example be a VDU screen or vehicle instrument panel.
Claims4
Apparatus for displaying an image of an object, comprising:
- a beamsplitter positioned in a path for light from the object, and
- a retroreflector positioned in a path for light from the object which has been reflected by the beamsplitter,
- wherein the retroreflector comprises a plurality of retroreflective surfaces opposing one another such that the image may be viewed from a plurality of predetermined directions.
Dependencies are inferred from the claim text.