| 摘要 |
PROBLEM TO BE SOLVED: To improve the optical performance in an imaging lens while realizing a wide angle and miniaturization. SOLUTION: The imaging lens is provided with a first lens L1 with a negative power, a second lens L2 with a negative power, a third lens L3, a fourth lens L4 with a positive power, a fifth lens L5, and a sixth lens L6 with a positive power in this order from the object side. The first lens L1 is a glass lens, and the second lens L2 to the sixth lens L6 are plastic lenses. At least one lens surface of the second lens L2 to the sixth lens L6 is a non-spherical face. The third lens L3 and the fifth lens L5 are formed with a material of a 45 or less Abbe's number with respect to a d line. COPYRIGHT: (C)2010,JPO&INPIT |
