Wavefront correction system
AssigneeThe Boeing Company
InventorsJonathan Maram, Jeffrey H. Hunt
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Abstract
A wavefront correction system using a dual frequency liquid crystal spatial light modulator to vary phase relationships of a wavefront is disclosed. A light beam from the dual frequency liquid crystal spatial light modulator can be split into a reference beam and a plurality of measurement beams to enhance a speed and/or accuracy of phase measurement. A temperature of the dual frequency liquid crystal spatial light modulator can be sensed to facilitate temperature control and/or temperature compensation, so as to enhance the accuracy associated with use of the crossover frequency used to control the dual frequency liquid crystal spatial light modulator.
Claims4
A method for wavefront correction, the method comprising splitting light into a plurality of components and combining at least some of the components to facilitate measurement of interference of the combined components;
- and correcting the wavefront responsive to the measurement of interference.
Dependencies are inferred from the claim text.