Genius Electronic Optical Co., Ltd.

I-Lung Lu

Poche Lee

Kuo-Wen Chang

Sheng-Wei Hsu

Sheng Wei Hsu

An optical imaging lens includes five lens elements arranged from an object side to an image side in a given order along an optical axis of the optical imaging lens. The object-side surface of the second lens element has a convex portion in a vicinity of its periphery, the object-side surface of the third lens element has a convex portion in a vicinity of the optical axis, the object-side surface of the fourth lens element has a concave portion in a vicinity of its periphery, the optical imaging lens as a whole has only the five lens elements, and an effective system focal length is EFL, an air gap between the second lens element and the third lens element along the optical axis is G23, a central thickness of the third lens element along the optical axis is T3, and EFL, G23 and T3 satisfy the equation4.89≤EFL/(23+3)≤5.88.

Imaging lens and electronic apparatus having the same

An optical imaging lens includes first, second, third, fourth and fifth lens elements arranged sequentially from an object side to an image side along an optical axis. The image-side surface of the first lens element comprises a concave portion in a vicinity of the optical axis. The object-side surface of the fourth lens element comprises a concave portion in a vicinity of the optical axis. The optical imaging lens as a whole has only the five lens elements having refractive power.

An optical imaging lens includes first, second, third, fourth and fifth lens elements arranged sequentially from an object side to an image side along an optical axis. The image-side surface of the first lens element comprises a convex portion in a vicinity of its periphery. The third lens element has negative power. The object-side surface of the fifth lens element comprises a concave portion in a vicinity of its periphery. The optical imaging lens as a whole has only the five lens elements having refractive power.

The optical imaging lens includes five lens elements from an object side to an image side. The optical imaging lens shows better optical characteristics through controlling the convex or concave shape of the surfaces of the lens elements to allow the thicknesses of the second and third lens elements and air gaps between the five lens elements along the optical axis satisfying the relations 1.715&#x2264;AAG/(AG45)&#x2264;7.593 and 2.124&#x2264;ALT/(T2+T3)&#x2264;3.937, where AAG is the sum of all four air gaps from the first to the fifth lens element along the optical axis, AG45 is an air gap between the fourth and fifth lens elements along the optical axis, ALT is the sum of thicknesses of the first to fifth lens elements along the optical axis, and T2 and T3 are the respective thickness of the second and third lens elements along the optical axis.

Mobile device and optical imaging lens thereof

An optical imaging lens includes, first, second, third, fourth and fifth lens elements arranged sequentially from an object side to an image side along an optical axis. The first lens element has a positive refractive power and the object-side surface of the first lens element comprises a convex portion in a vicinity of its periphery. The image-side surface of the second lens element comprises a concave portion in a vicinity of the optical axis. The object-side surface of the third lens element comprises a concave portion in a vicinity of its periphery. The image-side surface of the fourth lens element comprises a convex portion in a vicinity of the optical axis. The image-side surface of the fifth lens element comprises a concave portion in a vicinity of the optical axis and for the optical imaging lens as a whole, only the five lens elements have refractive power.

Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and air gaps between the five lens elements along the optical axis satisfying the relation 4.11&#x2266;f/(AG12+AG45)&#x2266;17.06, where f is the effective focal length of the optical imaging lens, AG12 is the air gap between the first and second lens element along the optical axis, and AG45 is the air gap between the fourth and fifth lens element along the optical axis. The optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and air gaps between the five lens elements along the optical axis satisfying the relation 1.400&#x2266;AG/AG&#x2266;4.615, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

An imaging lens includes first, second, and third lens elements arranged from an object side to an image side in the given order. The first lens element has a positive refracting power, and has a convex object-side surface facing toward the object side. The second lens element has a concave object-side surface facing toward the object side, and a convex image-side surface facing toward the image side. The third lens element has an image-side surface facing toward the image side and having a concave portion in a vicinity of an optical axis of the imaging lens. The imaging lens satisfies |&#x3bd;&#x2212;&#x3bd;|&#x3c;5, and |&#x3bd;&#x2212;&#x3bd;|&#x3e;20, where &#x3bd;, &#x3bd;, and &#x3bd;represent dispersion coefficients of the first, second, and third lens elements, respectively.

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Taichung, Taiwan

I-Lung Lu