Image Scanning Control Method for Accumulation-Type Sensor
Original Publication Date: 1986-Oct-01
Included in the Prior Art Database: 2005-Mar-09
To obtain a high-quality scanned image of an object using an accumulation-type sensor when the relative movement of the object and scanner in scanning is stopped and restarted, a high intensity LED (light-emitting diode) is used as a light source for the sensor to be energized so that the exposure time of the sensor for each scan cycle can always be constant and not saturate the sensor even when the object (or the scanner) is being accelerated or decelerated. During the time when the relative movement of the object and scanner is in a predetermined constant speed, the light source is continuously energized to provide the constant exposure time of the sensor for each scan cycle.