Patent ID: 6040567
Filing Date: 2000-03-21
Classification: G02B

Abstract:
A method for periodically moving an object so that a location coordinate of the object corresponds to an aim function being a function of time (t) at least in one periodic sub-interval of each cycle, comprising the step of driving the object so that a location of the object changes in response to a command function, wherein said command function is represented as ##EQU5## wherein a.sub.i comprise a finite number of n command parameters and A.sub.i comprise a finite number of series expansion functions, said command function being derivable byparameterizing the aim function as a series expansion which is represented as ##EQU6## wherein a'.sub.i comprise parameters of said series expansion and A.sub.i comprise corresponding series expansion functions, anddetermining n command parameters for which an optimization criterion is satisfied in the periodic sub-interval for the command function.