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AssigneeQC Optics, Inc.
InventorsNicholas Allen, Abdu Broudour, Sergey Broude, Eric Chase, Carl Johnson, Pascal Miller, Jay Ormsby, Arkady Savikovsky
Estimating the term…
A surface displacement detection system including a detector for detecting displacement of a surface in a direction normal to the surface as the surface revolves; an encoder which divides the surface into N sectors; a signal processor responsive to the detector for calculating the amount of displacement of the surface in each sector of the surface as it revolves; a displacement value look-up table; and a routine for writing to the table a displacement value for each sector once per M revolutions, and an adjustment system including a focussing actuating element, a routine to read displacement value look-up table, a routine to for updating the position of the focussing actuating element for every sector, according to the displacement values stored in the look-up table.
A surface displacement detection and adjustment system comprising:
A surface displacement detection and adjustment system comprising:
A surface displacement detection and adjustment system comprising:
Dependencies are inferred from the claim text.