Optical indicator device

The invention relates to an optical indicator device comprising an image sensor, a comparer and a controller. The image sensor comprises a photoelectric cell array which comprises a plurality of photoelectric cells for sensing light and generating analog signals corresponding to the light; the image sensor circularly outputs the analog signals from the photoelectric cells; the comparer is used for comparing the signals output from the image sensor to generate a relative comparison signal and comparing at least one signal output from the image sensor with the relative comparison signal to generate an absolute comparison signal; and the controller is used for using the relative comparison signal to output motion data and using the absolute comparison signal to output a shutter control signal. The invention can reduce the chip size of a semiconductor integrated circuit and can use the comparer with an offsetting removal circuit and an offsetting correcting circuit arranged outside the image sensor to output high