Optical memory with fiber optic light guide
Patent 4247914 Issued on January 27, 1981. Estimated Expiration Date: 
June 12, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 12, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3150356 3693171 Distributive tee coupler Optical memory with storage in three dimensions Patent #: 4101975 InventorAssigneeApplicationNo. 06/047675 filed on 06/12/1979US Classes:365/109, Photoconductive and ferroelectric365/117, Ferroelectric365/234OpticalExaminersPrimary: Hecker, Stuart N.Attorney, Agent or FirmInternational ClassesG11C 13/04 (20060101)G02B 6/00 (20060101) AbstractA three dimensional memory having an increased storage capacity. The memory block has a matrix of cylindrical cavities, each of which has a fiber optic light guide means disposed therein. Each light guide means is comprised of a cylindrical core having a first index of refraction and a cladding surrounding the core having a second, smaller index of refraction; a plurality of spaced deformations are formed at the core-cladding interface for allowing light to leak out of the guide laterally.Other References
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