OPTICAL WHEEL APPARATUS, LIGHT SOURCE DEVICE AND PROJECTION DEVICE, AND POSITIONING METHOD OF OPTICAL WHEEL APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a method for easily positioning an optical wheel.SOLUTION: An optical wheel 101 is formed in a circular shape, and includes on an outer periphery a convex part 105 protruding outwardly in a radial direction or a concave part adjacent to the convex part. A positioning spacer 106 is detachable to or from the convex part 105 or the concave part adjacent to the convex part. The optical wheel 101 is connected to a wheel motor 110 to be rotatably driven. A bracket 112 serving as a fixing part of the wheel motor 110 is provided with a positioning part performing positioning by moving the optical wheel 101. The positioning spacer 106 includes: a contact surface 106a formed in a circular arc concentric with the optical wheel 101; and a concave part 106b engaged with the convex part 105. The positioning of the optical wheel 101 is performed while the contact surface 106a of the positioning spacer 106 is brought into contact with a reference surface 107a.SELECTED DRAWING: Figure 6