Optical imaging lens including six lenses of -++-+-, --+-+- or -++-++ refractive powers

An optical imaging lens, comprising a first element, a second element, a third element, a fourth element, a fifth lens element and a sixth lens element sequentially from an object side to an image side along an optical axis, each of the first, second, third, fourth, fifth and sixth lens elements having an object-side surface facing toward the object side and allowing imaging rays to pass through and an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:

• the first lens element has negative refracting power, and a periphery region of the object-side surface of the first lens element is convex;
• a periphery region of the image-side surface of the third lens element is convex;
• the fourth lens element has negative refracting power;
• a periphery region of the object-side surface of the fifth lens element is convex;
• a periphery region of the object-side surface of the sixth lens element is concave, and a periphery region of the image-side surface of the sixth lens element is convex;
• lens elements having refracting power of the optical imaging lens consist of the six lens elements described above;
• and
• a thickness of the first lens element along the optical axis is represented by T1, a distance from the image-side surface of the first lens element to the object-side surface of the second lens element along the optical axis is represented by G12, a thickness of the second lens element along the optical axis is represented by T2, a thickness of the fifth lens element along the optical axis is represented by T5, an abbe number of the fifth lens element is represented by V5, a refractive index of the fifth lens element is represented by n5, an abbe number of the third lens element is represented by V3, a refractive index of the third lens element is represented by n3, and the optical imaging lens satisfies the inequalities:
• (T1+G12+T2)/T5≤1.400;
• and
• at least one of V5/n5≤34.000 and V3/n3≤34.000.