Method for setting driving conditions and apparatus for setting driving conditions of optical scanning apparatus

An apparatus for setting driving conditions applied in an optical scanning apparatus comprising an optical fiber that guides light from a light source and emits the light from a tip supported vibratably and an actuator that vibrates the tip of the optical fiber, the apparatus for setting driving conditions comprising:

• a controller configured to control the actuator;
• and
• a scanning pattern detector configured to detect a scanning pattern of the light emitted from the tip of the optical fiber, wherein
• the controller adjusts the scanning pattern detected by the scanning pattern detector by applying a drive signal to the actuator to vibrate the tip and changing the drive signal, the controller adjusting the scanning pattern by setting a first drive signal value of the drive signal applied to the actuator and a target amplitude of the scanning pattern and then determining a frequency of the drive signal applied to the actuator by comparing an amplitude of the scanning pattern detected by changing the frequency of the drive signal applied to the actuator with the target amplitude while vibrating the actuator at the first drive signal value.