摘要：【中文】本发明提供了一种摄像光学镜头，由物侧至像侧的方向上，依次包括具有正屈折力的第一透镜、具有负屈折力的第二透镜、具有正屈折力的第三透镜、具有正屈折力的第四透镜及具有负屈折力的第五透镜，且满足以下关系式：‑0.50≤f1/f2≤‑0.35；20.00≤f3/f≤30.00；‑3.10≤(f2+f5)/f≤‑2.40；‑1.80≤(R1+R2)/(R1‑R2)≤‑1.60；4.50≤(R5+R6)/(R5‑R6)≤6.00；1.10≤d8/d9≤1.30；该摄像光学镜头在具有良好的光学性能的同时，还满足广角化、超薄化的设计要求。 【EN】The invention provides a photographic optical lens, which sequentially comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power and a fifth lens with negative refractive power from an object side to an image side, and the following relational expressions are satisfied: f1/f2 is more than or equal to-0.50 and less than or equal to-0.35; f3/f is more than or equal to 20.00 and less than or equal to 30.00; -3.10 ≤ (f2+ f5)/f ≤ 2.40; -1.80 ≤ (R1+ R2)/(R1-R2) is ≤ 1.60; 4.50 is less than or equal to (R5+ R6)/(R5-R6) is less than or equal to 6.00; d8/d9 is more than or equal to 1.10 and less than or equal to 1.30; the imaging optical lens has good optical performance and also meets the design requirements of wide angle and ultra-thinness.