| 摘要 |
An embodiment provides an imaging lens, comprising at least first to fourth lenses having refractive power and sequentially arranged from an object to a formed image. A protection lens is disposed on a front surface of a first surface in the direction of the object of the first lens. Moreover, the protection lens has a thickness which is equal to or smaller than 1.2 mm, an effective size which is equal to or larger than 22 mm, and a diameter in the direction of an object layer which is larger than the diameter in the direction of the formed image, and is disposed within 3 mm from the first lens. |
