AN OPTICAL TECHNIQUE FOR ACHIEVING READ/WRITE SCANNING FROM A COMMON SCANNING ELEMENT
Original Publication Date: 1980-Jun-30
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
A desirable approach for the design of an optical scanning device which must both read input information and provide an output to a writing process is to obtain precise optical synchronism between the two light beams, thereby avoiding the necessity to either phase-lock two independent scanning elements of a simultaneous system or to store read data in the case of a non-simultaneous scanning system.