MULTI-DEPTH-OF-FIELD LIGHT-SENSING DEVICE, SYSTEM, DEPTH OF FIELD EXTENSION METHOD, AND OPTICAL IMAGING SYSTEM

摘要

The present invention relates to a multi-depth-of-field light-sensing device,a system, adepth of field extension method, and an optical imaging system. The multi-depth-of-fieldlight-sensing device includes at least two light-sensing pixel layers capableof inducing alight source, where the at least two light-sensing pixel layers are arrangedat an interval of apreset distance, so that different light signals from a lens at a specificdistance from thelight-sensing device are focused to the different light-sensing pixel layers.Themulti-depth-of-field light-sensing device of the present invention canimplement automaticfocusing without using any electrically operated mechanism or complex andprecisemechanical component, and have good depth of field extension performance.