Patent ID: 6665099
Filing Date: 2003-12-16
Classification: H04N

Abstract:
A light exposure control device for capturing exposure signals from a picture, comprising:a signal generator for receiving an excitation signal, said signal generator being capable of sending out a first excitation signal to a first signal line, a second excitation signal to a second signal line, and a third excitation signal to a third signal line, wherein within one cycle of the excitation signal, either the first excitation signal or the second excitation signal or the third excitation signal is triggered; a charge coupled device (CCD) chip, further comprising: a first photodetector sensitive to red light for gathering exposure signals, wherein the first photodetector is connected to the first signal line, and on arrival of the first excitation signal, outputs first image signals that correspond with the gathered exposure signals; a second photodetector sensitive to green light for gathering exposure signals, wherein the second photodetector is connected to the second signal line, and on arrival of the second excitation signal, outputs second image signals that correspond with the gathered exposure signals; and a third photodetector sensitive to blue light for gathering exposure signals, wherein the third photodetector is connected to the third signal line, and on arrival of the third excitation signal, outputs third image signals that correspond with the gathered exposure signals.