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US 11,156,827 B2Granted
Buckling mode actuation of fiber scanner to increase field of view
AssigneeMagic Leap, Inc.
InventorsTimothy Mark Dalrymple, Andrew C. Duenner, Albert Daniel Carlomagno, Xiaoyang Zhang, Michael Robert Johnson, William K. Jones, Jr., Charles David Melville
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Abstract
Described herein are embodiments of fiber scanning systems and methods of scanning optical fibers. The disclosed systems and methods advantageously provide an improvement to the scanning range, the oscillation amplitude, and/or the maximum pointing angle for an optical fiber in a fiber scanning system by inducing a buckling of a portion of the optical fiber.
Claims20
A system comprising:
- an optical fiber having a distal fiber end and a proximal fiber end;
- an electromechanical transducer mechanically coupled to the optical fiber between the distal fiber end and the proximal fiber end;
- and
- a voltage source in electrical communication with the electromechanical transducer, the voltage source configured to apply a plurality of voltages to the electromechanical transducer to vary an orientation of the distal fiber end of the optical fiber according to a spiral path, wherein the plurality of voltages includes a first voltage having a sinusoidal profile with an amplitude that increases or decreases as a function of time, and a second voltage that periodically ramps in magnitude.
1 more element
A method comprising:
- applying a plurality of voltages to an electromechanical transducer of an optical fiber scanning system to vary an orientation of a distal fiber end of an optical fiber according to a spiral path, wherein the optical fiber scanning system includes:
- the optical fiber, wherein the optical fiber has the distal fiber end and a proximal fiber end;
- the electromechanical transducer, wherein the electromechanical transducer is mechanically coupled to the optical fiber between the distal fiber end and the proximal fiber end;
- and
- a voltage source in electrical communication with the electromechanical transducer for applying the plurality of voltages;
- wherein the plurality of voltages includes a first voltage having a sinusoidal profile with an amplitude that increases or decreases as a function of time, and a second voltage that periodically ramps in magnitude.
3 more elements
Dependencies are inferred from the claim text.