Optical Guidance Systems And Methods Using Mutually Distinct Signal-Modifying Sensors
AssigneeAscentia Imaging, Inc.
InventorsEdward R. Dowski, JR., Gregory Johnson
Life of this patent
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Abstract
In an embodiment, an optical sensor includes (i) a first lens array including a plurality of first lenses, (ii) a photodetector array including a plurality of photodetectors each aligned with a respective one of the plurality of first lenses, and (iii) a plurality of signal-modifying elements each aligned with a respective one of the plurality of first lenses. The plurality of signal-modifying elements includes (a) a first signal-modifying optical element having a first spatially-dependent transmission function, and (b) a second signal-modifying optical element having a second spatially-dependent transmission function differing from the first spatially-dependent transmission function.
Claims15
An optical sensor comprising:
- a first lens array including a plurality of first lenses;
- a photodetector array including a plurality of photodetectors, each of the plurality of photodetectors being aligned with a respective one of the plurality of first lenses;
- and
- a plurality of signal-modifying elements, each of the plurality of signal-modifying elements being aligned with a respective one of the plurality of first lenses, the plurality of signal-modifying elements including
- (i) a first signal-modifying optical element having a first spatially-dependent transmission function, and
- (ii) a second signal-modifying optical element having a second spatially-dependent transmission function differing from the first spatially-dependent transmission function.
A guidance system for determining a location parameter of an object, comprising:
- at least one oscillating element located at the object for emitting modulated optical radiation;
- at least two mutually distinct signal-modifying electro-optical sensors each having a detector and a demodulator configured to generate a demodulated electrical signal in response to detection of at least a portion of the modulated optical radiation;
- a processor configured to determine the location parameter from the demodulated electrical signal.
A guidance system with aberration-corrected imaging, comprising:
- a plurality of electro-optical sensors sharing a field of view and each providing a respective plurality of altered images;
- and
- an image generator module for linearly and non-linearly processing spatial frequency properties of the plurality of altered images to synthesize an aberration-corrected image.
Dependencies are inferred from the claim text.