Compact planar optical correlator
AssigneeYeda Research and Development Co. Ltd.
InventorsSilviu Reinhorn, Asher Friesem, Yaakov Amitai
Life of this patent
Estimating the term…
Abstract
A planar optical correlator including at least first and second optical substrates (30, 32), through which light propagates by means of total internal reflection, at least first and second holographic lenses (20, 22) on the first optical substrate and optical third and fourth holographic lenses (24, 26) on the second optical substrate, each of the first and second and third and fourth holographic lenses performing a Fourier transformation on the input light to their respective optical substrates, the substrates positioned such that the second and third holographic lenses at least partially face each other. A filter (36) is positioned between the second and third holographic lenses.
Claims17
A planar optical correlator comprising:
- at least first and second optical substrates, through which light propagates by means of internal reflection;
- at least first and second holographic lenses disposed on the first optical substrate, and at least third and fourth holographic lenses disposed on the second substrate, each of the at least first and second and at least third and fourth holographic lenses being operative for performing a Fourier transformation of light inputted to its respective substrate, said at least first and second substrates being disposed such that the second holographic lens at least partially faces the third holographic lens;
- and
- a filter containing target signal information disposed between the second and third holographic lenses.
Dependencies are inferred from the claim text.