Patent ID: 11892760
Assignee: CORETRONIC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 21:
22. A projection method, adapted for an actuator device, wherein the actuator device comprises a base, a frame body, an optical element, and at least one driving assembly, wherein the projection method comprises:
disposing the frame body in the base, disposing the optical element in the frame body, and disposing the at least one driving assembly between the base and the frame body; and
controlling the at least one driving assembly to drive the frame body by a signal so that the optical element reciprocally swings relative to the base based on a first moving shaft, a second moving shaft, and a third moving shaft,
wherein the signal comprises a first driving signal corresponding to the first moving shaft, a second driving signal corresponding to the second moving shaft, and a third driving signal corresponding to the third moving shaft,
wherein the first driving signal and the second driving signal comprise a first frequency, and the third driving signal comprises a second frequency different from the first frequency,
wherein a phase difference between the first driving signal and the second driving signal is not equal to zero.