Patent ID: 6555983
Filing Date: 2003-04-29
Classification: B82Y,G02B

Abstract:
A positioner controller for generating motion control signals for driving each of at least four positioning element over respective axes of motion, the controller having a control portion operable to output motion control signals for causing motion over a search pattern coordinated in each of the at least four axes of motion, the control portion being operable to:(a) associate each axis of motion with a dimension of an n-dimensional hyper-space, where n is at least four; (b) define a starting hyper-surface of dimensionality one less than the number of axes of motion around a search origin; (c) obtain a set of coordinates defining a search path over the hyper-surface; (d) output motion control signals to cause the positioning elements to follow the search path; and (e) expand or contract the hyper-surface by an incremental amount and repeat steps (c) and (d).