System having optically encoded information
AssigneeUnited Technologies Corporation
InventorsLawrence E. Schumtz, Craig M. Schiller
Life of this patent
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Abstract
A optical system having optically encoded information includes a microptic multiplet (MOM) optical system on compact arrays or cards for both secure (encrypted) and non-secure applications where the presence or position of optical micro-lenses is indicative of the encoded information. The system is characterized by a first microptic lens module (MLM) that has data optically encoded thereon based on the position of a lenslet in a lenslet cell. One or more additional microptic lens modules can be used as a key(s) to interpret the data.
Claims17
A micro-optic multiplet (MOM) optical system having encrypted information, said system comprising:
- an array of lenslet cells for receiving a beam of radiation, each of said cells including a lenslet having a lenslet optic axis substantially parallel to a radiation optic axis paired with an associated region having an optical parameter different from a lenslet optical parameter, said lenslet being selectably located at one of two positions in said cell;
- a detector means for generating electrical signal equivalents of said beam received through said lenslet array;
- and
- logic circuitry for receiving said detector means electrical signals and generating, for each of said lenslet cells, binary electrical signals of one of two logical states indicative of which of said cell positions contains said lenslets, thereby providing the encrypted information.
A micro-optic multiplet (MOM) optical system having encrypted information, said system comprising:
- an array of aperture cells for receiving a beam of radiation, each of said cells having an aperture paired with an associated region having an optical parameter different from an aperture optical parameter, said aperture being selectably located at one of two positions in said cell;
- a detector means for receiving said beam and generating electrical signal equivalents;
- a decoding means including a decoder lenslet array moveable from an aligned position receiving said beam from said aperture cell array and providing said beam to said detector means to a non-aligned position disabling the presentation of said beam to said detector means;
- logic circuitry for receiving said detector means electrical signals and generating, for each of said lenslets, binary electrical signals of one of two logical states indicative of which cell position contains said aperture, thereby providing the encrypted information.
Dependencies are inferred from the claim text.