OPTICAL SCANNING CONTROL SIGNAL GENERATION CIRCUIT, OPTICAL DISPLACEMENT MEASURING INSTRUMENT, AND PHOTOELECTRIC SWITCH

摘要: PROBLEM TO BE SOLVED: To generate an optical scanning control signal which stably scans beam on object at a uniform speed without the occurrence of ringing or overshoot and to simplify circuit constitution. SOLUTION: An generation 3 includes first integrating 32 provided with clamping second 33. The not only integrates periodical square wave S2 alternately changed positive negative voltages but also clamps it by prescribed clamp voltage output trapezoidal S3 voltages. 33 S4 having triangular waveform whose top part is like parabolic curve.