Patent ID: 9547155
Date: 2017-01-17
CPC Classifications: G02B

Claim:
1. A seven-piece optical lens for capturing image, in order from an object side to an image side, the optical lens along an optical axis comprising: a first lens element with refractive power near the optical axis; a second lens element with refractive power near the optical axis, wherein at least one of an object-side surface and an image-side surface of the second lens element are aspheric; a third lens element with refractive power near the optical axis; a fourth lens element with positive refractive power near the optical axis; a fifth lens element with refractive power near the optical axis; a sixth lens element with positive refractive power near the optical axis and having a convex image-side surface, wherein at least one of an object-side surface and the image-side surface of the sixth lens element are aspheric; and a seventh lens element with positive refractive power near the optical axis and having a convex object-side surface, wherein at least one of an image-side surface and the object-side surface of the seventh lens element are aspheric, wherein f is a focal length of the seven-piece optical lens for capturing image, FL is a distance from an object-side surface of the first lens element to the image-side surface of the seventh lens element along the optical axis, and the following relation is satisfied: