COMPACT LENS OPTICAL SYSTEM AND DIGITAL CAMERA MODULE COMPRISING THE SAME

摘要

PURPOSE: A compact lens optical system and a digital camera module including the same are provided to compactize the optical system by realizing a wide and bright lens and a curved optical system. CONSTITUTION: A first lens group(G1-1) includes a first reflecting part which curves the optical path of light displaying a subject from a first direction, and the optical path is toward an image taking element(52). A second lens group(G1-2) includes negative refractive power. A third lens group includes positive refractive power. A fourth lens group includes positive refractive power. In case of the variation of magnification, the first lens group is fixed. The second lens group and the third lens group are moved, and the fourth lens group implements a focusing operation.