| 摘要 |
PURPOSE: A photographing lens optical system is provided to reduce size and weight and to improve performance by easily correcting various aberrations. CONSTITUTION: A photographing lens optical system successively comprises a first lens, a second lens, and a third lens from the object side between an object(OBJ) and an image sensor(IMG). The first lens has positive refraction power and is bulging towards the object side. The second lens has negative refraction power and is bulging towards the image sensor side. The third lens has the positive refraction power and comprises a point of deflection from a center portion of an incidence side or an emitting side to edge portions. |
