Calibration apparatus and method for calibrating optical scanning apparatus

Abstract

This method is for calibrating an optical scanning apparatus that includes an optical fiber with a tip supported to allow vibration and an actuator that drives the tip of the optical fiber in a direction perpendicular to the optical axis of the optical fiber. The method includes arranging a position sensitive detector that detects a position of emitted light from the tip of the optical fiber (step S02) and detecting the position of the emitted light with the position sensitive detector while supplying light to the optical fiber and driving the tip of the optical fiber (step S03). The step of detecting (step S03) is performed using an interference fringe reducer that reduces interference fringes occurring along an optical path reaching the position sensitive detector.

Dependencies are inferred from the claim text.