CPC G02B 13/0045 (2013.01) [G02B 9/60 (2013.01); G02B 13/0065 (2013.01)] | 18 Claims |
1. An optical imaging lens group, sequentially comprising from an object side to an image side along an optical axis:
a first prism has a first reflective surface;
a first lens has a refractive power, and an object-side surface thereof is a convex surface;
a second lens has a refractive power;
a third lens has a refractive power, an object-side surface thereof is a concave surface and an image-side surface thereof is a convex surface;
a fourth lens has a refractive power;
a fifth lens has a refractive power; and
a second prism has a second reflective surface; and
an optical distortion Dist. of the optical imaging lens group satisfies: |Dist.|<0.1%;
a combined focal length f12 of the first lens and the second lens and an effective focal length f4 of the fourth lens satisfy: −0.7<f4/f12<−0.2.
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