Optical scanning device, method of driving optical scanning device, and image drawing system
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 3, 2024
Grant Date -
May 25, 2023
app pub date -
Jan 11, 2023
filing date -
Jan 11, 2023
priority date (Note) -
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Abstract
A processor applies a first driving signal having a first driving frequency to a first actuator, applies a second driving signal having a second driving frequency to a second actuator, generates a first angle detection signal by performing first frequency filter processing based on the first driving frequency on an output signal of a first angle detection sensor, generates a second angle detection signal by performing second frequency filter processing based on the second driving frequency on an output signal of a second angle detection sensor, derives a first angle, which is an angle of a mirror portion around a first axis, based on the first angle detection signal, derives a second angle, which is an angle of the mirror portion around a second axis, based on the second angle detection signal, adjusts the first driving signal based on the first angle, and adjusts the second driving signal based on the second angle.
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