CORRECTION OF WOBBLE AND CENTRATION ERRORS IN HOLOGRAPHIC SCANNERS VIA BALANCING TECHNIQUES
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In the employment of disk-type holographic scanners, it is known that spinner wobble is the major contributing factor to unwanted cross-scan motion since this device is essentially free of pyramidal error. The cross-scan motion results from tilting of the spinner surface when it wobbles, thus causing a tilting of the deflected beam. It has been shown that reduction of wobble can be achieved if the spinner is connected to the drive motor by means of a flexible or dynamic mounting arrangement which allows the rotating disk to align itself in response to the mechanical forces produced by the rotation.