Loading patent…
AssigneeGreyhawk Systems, Inc.
InventorDavid E. Slobodin
Estimating the term…
An improved light addressed liquid crystal light valve incorporating electrically insulating light blocking material is disclosed. The light valve has a hydrogenated amorphous silicon photosensitive layer and a germanium containing or tin containing alloy film as a light blocking layer. The light blocking layer that may be used is a selected alloy which includes one or more elements from the group consisting of germanium and tin, one or more elements from the group consisting of hydrogen, nitrogen and oxygen, and zero or more elements from the group consisting of silicon and carbon. The light blocking layer has an optical density per unit thickness approximately equal to or greater than 3 OD/micron for visible light and a sheet resistivity approximately equal to or greater than 10.sup.10 ohms/square.
In a multilayer spatial light modulator device, the structure comprising:
In a spatial light modulator apparatus for reflection mode modulation of projection light, said apparatus including photoconductor means having a photosensitive impedance, electro-optic means for modulating said projection light, and light blocking means for shielding said photoconductor means from said projection light disposed between said photoconductor means and said electro-optic means, the improvement comprising:
In a spatial light modulator apparatus for reflection mode modulation of projection light, said apparatus including photoconductor means having a photosensitive impedance, electro-optic means for modulating said projection light, and light blocking means located between said photoconductor means and said electro-optic means for shielding said photoconductor means from said projection light, the improvement comprising:
Dependencies are inferred from the claim text.