光学系统;OPTICAL SYSTEM

摘要

一种光学系统，可包含：第一透镜，具有正折射能力；第二透镜，具有正折射能力；第三透镜，具有负折射能力；第四透镜，具有正折射能力；第五透镜，具有负折射能力；第六透镜，具有正折射能力或负折射能力，所述第六透镜的影像侧表面为朝向成像表面的凹面。; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; a sixth lens having positive or negative refractive power, an image-side surface thereof being concave toward an imaging surface.