Abstract: An optical imaging lens including a first, a second, a third, a fourth, a fifth, and a sixth lens elements arranged in sequence from an object side to an image side. Each of the lens elements includes an object-side surface and an image-side surface. The first to sixth lens elements have refracting power. The second lens element has a negative refracting power. An optical axis region of the image-side surface of the third lens element is concave. There is no air gap between the fourth lens element and the fifth lens element. A ratio between a distance on an optical axis from the image-side surface of the first lens element to the object-side surface of the fourth lens element and a thickness of the first lens element along the optical axis is less than or equal to 3.000.

Abstract: Mold apparatuses may comprise a mold body, a thermostat target area and a channel unit. Said thermostat target area may be defined in said mold body. The channel unit may comprise a thermostat channel which may be formed in said mold body and may be connected with the outside to maintain the temperature of said thermostat target area through the thermostat medium flowing through it, and a heat conductive partition disposed in the thermostat channel. Said thermostat channel may comprise a first channel located on one side of said heat conductive partition; a second channel located on the other side of said heat conductive partition; a first port connected with said first channel and the outside; a second port connected with said second channel and the outside; and a connect channel away from the first port and the second port and connected with said first channel and said second channel.

Abstract: An optical imaging lens set includes a first lens with positive refractive power and a convex object-side surface, a second lens element with negative refractive power and an image-side surface with a concave portion in a vicinity of its periphery, a third lens element has an object-side surface with a concave portion in a vicinity of its periphery, a fourth lens element with positive refractive power, a concave object-side surface and a convex image-side surface, a fifth lens element with an object-side with a convex portion in a vicinity of the optical axis, an image-side surface with a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of its periphery.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises four lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements and designing an equation, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: 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 the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.