Diffractive display

Details Diffractive display Diffractive display

2005-05-24

2005-05-24

Boutsikaris, Leo (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S566000, C359S015000

Reexamination Certificate

active

06898009

ABSTRACT:
The present invention is directed to an improvement in a diffractive display suitable for presenting graphic and the like displays. Broadly, a novel embodiment is realized from a holographic diffraction pattern carried by a magnet or element and an electrically energizable coil magnetically coupled with said magnet that is energizable for movement of the magnet. Rotation of the holographic diffraction pattern generates a display using the diffracted light from the holographic diffraction grating. Another novel embodiment is realized from a faceted rotatable element (FRE) having an array of facets each bearing a diffraction grating and a source energizable for rotation of the FRE from a resting station to a viewing station. Rotation of the FRE generates a display using the diffracted light from the diffraction gratings.

REFERENCES:
patent: 4398798 (1983-08-01), Krawczak et al.
patent: 5613022 (1997-03-01), Odhner et al.
patent: 20030043373 (2003-03-01), Russell
patent: WO 9100022991 (1991-03-01), None

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