| 摘要 |
<p>Compact imaging lens comprising, from object- to image-side (170), an aperture stop (100) having a diameter AD, a first lens (10) having positive power and an object-side surface (101) being convex towards the object, a second lens (20), a third lens (30), a fourth lens (40), a fifth lens (50) having an image-side surface (502) being concave towards the image and a sixth lens (60) being aspherical, having negative power and an image-side surface (602) being convex towards the image and fulfilling the inequality ˆ£S12H / ADˆ£ < 0.05 where S12H denotes the distance, measured along the optical axis, between the point corresponding to the diameter of the aperture stop and the vertex of this surface (602).</p> |
