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US 2019/0171032 A1Published application
Mems-based optical image stabilization
AssigneeDigitalOptics Corporation MEMS
InventorsXiaolei LIU, Roman C. GUTIERREZ, Pat K. LEANG, Jose A. MENDEZ, Corneliu ZAHARIA, Alexandru F. DRIMBAREAN, Petronel Gheorghe BIGIOI
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Abstract
In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
Claims20
A camera, comprising:
- a plurality of electrostatic actuators, each actuator configured to exert a force on at least one lens;
- and
- an optical image stabilization (OIS) algorithm module configured to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
A method of image stabilization, comprising:
- sensing a motion of a camera;
- based upon the sensed motion, determining a desired lens actuation that stabilizes a camera lens;
- translating the desired lens actuation into desired tangential actuations;
- and
- tangentially actuating the at least one lens using a plurality of tangential actuators according to the desired tangential actuations.
2 more elements
A system, comprising:
- a lens;
- a stage holding the lens within a curved aperture;
- three tangential actuators symmetrically disposed about the stage, each tangential actuator operable to displace the stage in a direction tangential to a curve defined by the curved aperture;
- and
- an optical image stabilization (OIS) algorithm module operable to derive an actuation command for each of the three tangential actuators responsive to motion of the camera.
2 more elements
Dependencies are inferred from the claim text.