Optical imaging lens

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

• an optical axis region of the image-side surface of the first lens element is convex;
• the second lens element has a negative refracting power;
• the fourth lens element has a negative refracting power;
• and
• lenses of the optical imaging lens only comprise the first lens element to the sixth lens element and satisfy the following conditional expressions:
• (T3+G34)/AAG≥1.400 and V5≥45.000, where T3 is a thickness of the third lens element along the optical axis, G34 is an air gap from the third lens element to the fourth lens element along the optical axis, AAG is a sum of five air gaps from the first lens element to the sixth lens element along the optical axis, and V5 is an Abbe number of the fifth lens element.

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

• an optical axis region of the image-side surface of the first lens element is convex;
• the second lens element has a negative refracting power;
• the fourth lens element has a negative refracting power;
• an optical axis region of the image-side surface of the fifth lens element is concave;
• and
• lenses of the optical imaging lens only comprise the first lens element to the sixth lens element and satisfy the following conditional expressions:
• (HFOV×ImgH)/EFL≥50.000° and V5≥45.000, where HFOV is a half field of view of the optical imaging lens, ImgH is an image height of the optical imaging lens, EFL is an effective focal length of the optical imaging lens, and V5 is an Abbe number of the fifth lens element.