Patent ID: 8610985
Filing Date: 2013-12-17
Classification: G02B

Abstract:
1. A method of adjusting a mounting position of an oscillating mirror of an optical scanning device, the method comprising: providing the optical scanning device, and wherein the optical scanning device includes: adjusting the position of the bracket in the rotational direction about the oscillation axis of the oscillating mirror such that a time interval between the first and second output pulses of the first light-receiving element and a time interval between the first and second output pulses of the second light-receiving element, as represented in output signals of the respective light-receiving elements, become substantially the same between the light-receiving elements, and widths of the output pulses become substantially the same between the light-receiving elements; controlling the oscillating mirror based on the output signals of the light-receiving elements such that the amplitude of an amplitude waveform of the oscillating mirror becomes constant, a mounting position of the oscillating mirror being adjusted while the amplitude of the amplitude waveform of the oscillating mirror is kept constant by the control unit; adjusting a mounting position of the scanning/imaging optical system by moving the scanning/imaging optical system in a main-scanning direction, and wherein the step of adjusting the mounting position of the scanning/imaging optical system by moving the scanning/imaging optical system in the main-scanning direction occurs after the mounting position of the bracket is adjusted based on the output signals of the light-receiving elements.