Light-transmissive data storage sandwich
AssigneeWave Domain LLC
InventorsEric Dean Rosenthal, Richard Jay Solomon, Clark Johnson
Life of this patent
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Abstract
The present invention teaches a methodology and apparatus for data storage using elements of data sets stored as standing waves of a plurality of wavelengths in an optical photosensitive medium. A selector chooses the locations wherein the combinations of standing waves are stored. The medium is read in transmission mode with select standing waves acting as notch filter.
Claims8
A light-transmissive data storage sandwich apparatus for storing digital data in an optical data storage medium layer, the device comprising:
- a set of monochromatic light sources of preselected wavelengths;
- a diffusing layer, coupled to the set of monochromatic light sources, configured to uniformly distribute light from the light sources;
- a beam directing layer having a rear surface, the beam directing layer coupled to the diffusing layer, configured to redirect light from the diffusing layer in a direction perpendicular to the rear surface;
- a pixel selector layer, having an rear surface, the pixel selector layer coupled to the rear surface of the beam directing layer and configured to define a set of masks that selectively inhibits transmission of light, on a pixel-by-pixel basis, at a wavelength of interest;
- and,
- the optical data storage medium layer applied to output surface of the pixel selector layer.
A light-transmissive data storage sandwich apparatus for reading digital data stored in an optical data storage medium layer, the apparatus comprising:
- a set of light sources of predetermined wavelengths;
- a diffusing layer configured to uniformly distribute light from the light sources;
- an exposed optical data storage medium layer embedding standing waves acting as notch filters;
- a beam directing layer, disposed between the diffusing layer and the optical data storage medium layer, the beam directing layer having a rear surface and configured to redirect light from the diffusing layer in a direction perpendicular to the rear surface, so as to reach the optical data storage medium layer;
- a pixel selector layer which in reading mode is transparent;
- a sensor layer to detect the select pixel locations attenuated by the standing waves.
Dependencies are inferred from the claim text.