METHOD OF MEASUREMENT FOR CCD AREA SENSOR

摘要

PURPOSE:To enable measuring position precision of a color filter without being affected by hardware-wise characteristics, by directly data processing an element output. CONSTITUTION:An input signal is applied to a CCD area sensor 1 from an optical system equipment 2 and a driving circuit 4. Only the necessary part of element output of the sensor 1 is extracted as data, by using the timing signal received from a synchronizing signal generating circuit 4, and delivered to a data processing equipment, in which software-wise processing is executed. That is, the difference of color reproduction between a first field and a second field during interlaced scanning is calculated. This work is repeated by controlling the optical system equipment 2, and changing color and position on an image plane. Based on the data of the difference of color reproduction, position precision of the color filter is measured. Thereby the positioned precision of the color filter can be measured, without being affected by hardware-wise characteristics.