OPTICAL IMAGE CAPTURING SYSTEM

The invention provides an optical image capturing system. The optical imaging system includes: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; and a sixth lens having a negative refractive power. The first to sixth lenses are sequentially disposed from an object side to an imaging plane. The Abbe number of the second lens is 21 or less. 本发明提供一种光学成像系统。所述光学成像系统包括：第一透镜，具有正屈光力；第二透镜，具有负屈光力；第三透镜，具有正屈光力；第四透镜，具有正屈光力；第五透镜，具有负屈光力；及第六透镜，具有负屈光力。从物方至成像面顺序设置所述第一透镜至所述第六透镜。所述第二透镜的阿贝数是21或更小。