CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01)] | 12 Claims |
1. An optical imaging lens, sequentially comprising from an object side to an image side along an optical axis:
a first lens with refractive power;
a second lens with positive refractive power;
a third lens with negative refractive power;
a fourth lens with refractive power;
a fifth lens with refractive power;
a sixth lens with refractive power;
a seventh lens with positive refractive power; and
an eighth lens with negative refractive power;
wherein, a total effective focal length f of the optical imaging lens and a maximum Field of View (FOV) of the optical imaging lens meet f×TAN(FOV/2)>4.0 mm; and
the total effective focal length f of the optical imaging lens, a center thickness CT7 of the seventh lens on the optical axis and a center thickness CT8 of the eighth lens on the optical axis meet:
f/(CT7+CT8)≥5.0;
the total effective focal length f of the optical imaging lens, a curvature radius R13 of an object-side surface of the seventh lens and a curvature radius R14 of an image-side surface of the seventh lens meet:
f/R13+f/R14>3.5.
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