Color wheel and color filter assembly thereof
AssigneeAsia Optical Co., Inc.
InventorsPo-sung Kao, Shou-chy Chia
Life of this patent
Estimating the term…
Abstract
A color filter assembly rotates around a central axis thereof and includes a carrier defining a radially extending holes, a color filter fixed to the carrier, and a balancing element movably received and selectively positionable along each hole. Selectively positioning the balancing with respect to the central axis allows for statically balancing of mass and adjustment of the center of mass thereby enhancing rotation stability of the color filter assembly.
Claims19
A color filter assembly rotating around a central axis thereof, including:
- a carrier defining a plurality of holes and rotating around the central axis;
- a color filter fixed to the carrier;
- and
- a plurality of balancing elements individually located and radially movable in the holes of the carrier so that the balancing elements adjust the center of mass of the color filter assembly to be on the central axis;
- wherein when the balancing elements are appropriately positioned, the balancing elements are fixed on the adjusted position to improve stability of rotation of the carrier.
A color wheel, including:
- a filter assembly rotating around a central axis thereof, the filter assembly including a carrier having a plurality of holes and rotating around the central axis;
- a color filter fixed to the carrier;
- and a plurality of balancing elements individually located and radially movable in the holes of the carrier so that the balancing elements adjust the center of mass of the color filter assembly to be on the central axis;
- wherein when the balancing elements are appropriately positioned, the balancing elements are fixed on the adjusted position to improve stability of rotation of the carrier;
- a motor;
- and
- a shaft at the central axis connecting the motor and the filter assembly, wherein the motor rotates the filter assembly via the shaft.
A color filter assembly comprising:
- a carrier rotatable about a central axis and defining a hole;
- a color filter fixed to the carrier;
- and
- a balancing element movably received in and selectively and removably positioned along the hole to set location of mass center of the color filter assembly.
A color filter assembly rotatable about an axis comprising:
- a carrier defining a plurality of holes;
- a color filter fixed to the carrier, the carrier and the color filter together having a first center of mass;
- an element movably received in and selectively and removably positioned along the hole to statically set a second center of mass for the color filter assembly, which is different from the first center of mass.
Dependencies are inferred from the claim text.