Achromatic flat-panel display
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United States of America Patent
Stats
-
Apr 26, 2005
Grant Date -
Apr 15, 2004
app pub date -
Oct 24, 2003
filing date -
Nov 25, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An achromatic flat-panel projection display comprises a video projector 2a, a condensing lens (26) and a tapered transparent slab spreading the image input from the projector over the area of th slab. To compensate for dispersion in the slab a dispersive prism is used at the input edge of the slab, whose dispersion cancels out the dispersion of the slab. The prism can be a separate part of simply a bevel in the input edge, i.e. the thick end of the slab.
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Cited Art Landscape
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