Colour wheel with dynamic-balancing dovetail

The utility model discloses a color wheel with a dynamic-balancing dovetail, which at least comprises a motor, a metal ring and a group of optical filters which are glued to the surface of the metal ring. A rotational structure position, such as the position between the metal ring and a rotating outer shell of the motor, or the circumference face of the metal ring forms a counter-balanced groove with a narrow outer part and a wide inner part. When the color wheel with a dynamic balancing dovetail has dynamic balance adjustment, counter-balanced glue or substance is dropped or added in the groove, the strength after combination can be increased through the groove type characteristic with the narrow outer part and the wide inner part, and the counter-balanced glue or substance can withstand the centrifugal force of high-speed rotation for a long time and can not be easily disengaged or decomposed. The surface of the metal ring of the utility model for gluing to the optical filters is also additionally provided with single-ring, double-ring or multi-ring annular grooves, which provides the reference point of the glue depositing position and the average diffusion and flow of glue liquid can be accelerated to prevent nonuniform thickness of a glue line for increasing the balance quality after gluing.