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US 2009/0021851 A1Published application
Color wheel with individual balancing masses along a guide
AssigneeOc Oerlikon Balzers AG
InventorEmil Janicek
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AssigneeOc Oerlikon Balzers AG
InventorEmil Janicek
Estimating the term…
A color wheel is provided with a balancing device. The balancing device encompasses an essentially circular track whose center point coincides with the axial center of rotation of the color wheel. The track is provided with at least two mutually independent, movable balancing weights. Moving the balancing weights along the track requires a force greater than the gravitational force of the balancing weight. In one example method for balancing a color wheel, a determination is made of a position in which a balancing weight corresponding to the total weight of the balancing weight system would have to be placed in order to balance the color wheel. At least one of the balancing weights is then moved to the position, according to the determination, where one of the balancing weights corresponding to the total weight of the balancing weight system would have to be placed.
Color wheel with a balancing device, which balancing device encompasses an essentially circular track whose center point coincides with the axial center of rotation of the color wheel, and in which the said track is provided with two mutually independent, movable balancing weights, jointly constituting a balancing weight system, in such fashion that moving the balancing weights along the track requires a force greater than the gravitational force of the balancing weight concerned.
Color wheel as in one of the preceding claims, in which any two balancing weights of the balancing weight system are of an essentially identical weight.
Dependencies are inferred from the claim text.