| 摘要 |
An imaging lens includes, sequentially from an object side, a first lens (L11) configured by a negative meniscus lens disposed with the convex surface on the object side; a second lens (L12) configured by a positive biconvex lens; a negative third lens (L13); and a fourth lens group (L14) configured by a positive meniscus lens disposed with the convex surface on the image plane IMG side. By satisfying given conditions, the imaging lens is able to control ghosting occurring between the last lens surface and the imaging element and ghosting caused by light reflected by the lens surface nearest the object, without sacrifice to the compact-size of the optical system or high optical performance.
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