Patent ID: 9250364
Filing Date: 2016-02-02
CPC Classification: G02B

Claim Text:
1. An optical imaging lens, comprising: a lens barrel; and a plurality of lens elements, positioned in the lens barrel, wherein each of the lens elements has a rim, a center, a lens portion, and a peripheral portion formed around the lens portion and extending to the rim of the lens element, the lens portion is formed with an object-side surface facing an object side and an image-side surface facing an image side for passing the light, the lens elements comprises a first lens element, a second lens element, and a third lens element, the first lens element, the second lens element, and the third lens element are positioned sequentially from the object side to the image side, a radius measuring a distance from the center of the second lens element to the rim of the second lens element is smaller than that of the first lens element, the first lens element is adjacent to the object-side surface of the second lens element, the radius from the center of the second lens element to the rim of the second lens element is smaller than that of the third lens element, the third lens element is adjacent to the image-side surface of the second lens element, wherein the rim of the second lens element is embedded in the peripheral portions of the first and third lens element, the maximum thicknesses of the peripheral portions of the first and third lens elements are greater than the maximum thickness of the peripheral portion of the second lens element, and wherein the rim of the second lens element is formed with a perpendicular angle, a chamfering angle, a round corner or an inclined plane which is contacted with a corresponding inclined plane formed on the peripheral portion of the first lens element or the peripheral portion of the third lens element.