COLOR WHEEL AND COLOR SEQUENTIAL COLOR DISPLAY DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a color wheel whose position is accurately detected even at the time of a high-speed rotation and at a high temperature as a color wheel constituted of a disk type color filter divided into a plurality of color areas and a motor rotating the color filter. SOLUTION: This color filter constituted of the disk type color filter divided into a plurality of color areas and the motor for rotating the color filter is equipped with a sensor inside the motor for detecting the rotation of the motor. The sensor outputs one pulse per at least one rotation of the motor.