Method and apparatus for correcting visual aberrations in...

Details Method and apparatus for correcting visual aberrations in... Method and apparatus for correcting visual aberrations in...

2005-03-15

2005-03-15

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

Diffusing

C359S453000, C359S452000

Reexamination Certificate

active

06867928

ABSTRACT:
High spatial frequency optical noise in the form of intensity contrasting picture elements in the display of a projected light image on a bead-oriented image-enhancing filter is significantly reduced by interposing light-scattering material in the optical path between a source of the projected light image and the display in order to inhibit formation and interference of coherent light waves, and to mask the appearance of separate or discrete beaded apertures.

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International Search Report dated Nov. 3, 2003, for International Application No. PCT/US03/19611, filed on Jun. 20, 2003.

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