| 摘要 |
A zoom lens is provided. The zoom lens includes a first lens group, a second lens group and a third lens group. The first lens group includes at least one lens. The second lens group includes at least one lens. The first lens group, the second lens group and the third lens group are arranged in order from an object side to an image side. The zoom lens satisfies following conditions: NdA<1.65, NdB<1.65, and GD2/GD1<1.35. NdA is a refraction index of the first lens group. NdB is a refraction index of the second lens group. GD1 is a thickness of the first lens group along an optical axis. GD2 is a thickness of the second lens group along an optical axis. |
