Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-03-08
2005-03-08
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S263000, C359S222100
Reexamination Certificate
active
06865011
ABSTRACT:
An image display has a transparent front sheet with a prismatically microstructured inward surface and a rear sheet substantially parallel to and spaced from the front sheet. An electrophoretic suspension fills the space between the sheets. The suspension is formed by suspending non-light-scattering light absorptive particles in an electrophoresis medium until the particles form a substantially unitary thermodynamically stable agglomeration. Application of a voltage across the suspension establishes an electric field for controllably electrophoretically moving the particle agglomeration as a substantially unitary whole toward the front sheet's inward surface to frustrate total internal reflection at the inward surface of light rays passing through the front sheet.
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Mossman Michele Ann
Whitehead Lorne A.
Hanig Richard
Oyen Wiggs Green & Mutala
Sugarman Scott J.
The University of British Columbia
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