Optical imaging lens assembly having specified relationship of focal length to field of view

1. An optical imaging lens assembly, comprising a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, which are sequentially arranged from an object side to an image side along an optical axis,

wherein,

the first lens has positive refractive power, and an object-side surface of the first lens is a convex surface;

the second lens has refractive power, and an image-side surface of the second lens is a concave surface;

the third lens has refractive power;

the fourth lens has refractive power;

the fifth lens has negative refractive power; and

wherein 0.6<f/f123<1, where ƒ is a total effective focal length of the optical imaging lens assembly, and f123 is a combined focal length of the first lens, the second lens, and the third lens;

wherein TTL/ImgH<1.5, where TTL is a distance along the optical axis from the object-side surface of the first lens to an imaging plane of the optical imaging lens assembly, and ImgH is half of a diagonal length of an effective pixel area on the imaging plane of the optical imaging lens assembly; and

wherein 4.1 mm<f*tan (Semi-FOV)<4.8 mm, where ƒ is a total effective focal length of the optical imaging lens assembly and Semi-FOV is half of a maximal field-of-view angle of the optical imaging lens assembly.

2. The optical imaging lens assembly according to claim 1 ,

wherein 0.5<f1/f<1, where f1 is an effective focal length of the first lens and ƒ is the total effective focal length of the optical imaging lens assembly.

3. The optical imaging lens assembly according to claim 1 ,

wherein −0.6<f1/f45<0, where f1 is an effective focal length of the first lens, and f45 is a combined focal length of the fourth lens and the fifth lens.

4. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<ET5/(ET2+ET3+ET4)<0.7, where ET2 is an edge thickness of the second lens, ET3 is an edge thickness of the third lens, ET4 is an edge thickness of the fourth lens, and ET5 is an edge thickness of the fifth lens.

5. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<(SAG31+SAG32)/(SAG51+SAG52)<0.7,

where,

SAG31 is a distance along the optical axis from an intersection of an object-side surface of the third lens and the optical axis to a vertex of an effective radius of the object-side surface of the third lens,

SAG32 is a distance along the optical axis from an intersection of an image-side surface of the third lens and the optical axis to a vertex of an effective radius of the image-side surface of the third lens,

SAG51 is a distance along the optical axis from an intersection of an object-side surface of the fifth lens and the optical axis to a vertex of an effective radius of the object-side surface of the fifth lens, and

SAG52 is a distance along the optical axis from an intersection of an image-side surface of the fifth lens and the optical axis to a vertex of an effective radius of the image-side surface of the fifth lens.

6. The optical imaging lens assembly according to claim 1 ,

wherein 36<V3<40, where V3 is an abbe number of the third lens, and

wherein 1.55<N3<1.58, where N3 is a refractive index of the third lens.

7. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<f/(f1-f5)<0.7, where ƒ is a total effective focal length of the optical imaging lens assembly, f1 is an effective focal length of the first lens, and f5 is an effective focal length of the fifth lens.

8. The optical imaging lens assembly according to claim 1 ,

wherein −0.6<f1/f45<0, where f1 is an effective focal length of the first lens, and f45 is a combined focal length of the fourth lens and the fifth lens.

9. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<(R4-R1)/(R4+R1)<0.7, where R1 is a radius of curvature of the object-side surface of the first lens, and R4 is a radius of curvature of the image-side surface of the second lens.

10. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<(T12+T23)/(T34+T45)<0.7, where T12 is a spaced interval between the first lens and the second lens along the optical axis, T23 is a spaced interval between the second lens and the third lens along the optical axis, T34 is a spaced interval between the third lens and the fourth lens along the optical axis, and T45 is a spaced interval between the fourth lens and the fifth lens along the optical axis.

11. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<ET5/(ET2+ET3+ET4)<0.7, where ET2 is an edge thickness of the second lens, ET3 is an edge thickness of the third lens, ET4 is an edge thickness of the fourth lens, and ET5 is an edge thickness of the fifth lens.

12. The optical imaging lens assembly according to claim 1 , wherein the optical imaging lens assembly further comprises a stop, and

wherein 0.6<SD/TTL <0.9, where SD is a distance along the optical axis from the stop to an image-side surface of the fifth lens, and TTL is a distance along the optical axis from the object-side surface of the first lens to an imaging plane of the optical imaging lens assembly.

13. The optical imaging lens assembly according to claim 12 ,

wherein 0.7<TD/SL<1, where TD is a distance along the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens, and SL is a distance along the optical axis from the stop to the imaging plane of the optical imaging lens assembly.

14. The optical imaging lens assembly according to claim 1 ,

wherein 0.2<CT2/CT3<0.5, where CT2 is a center thickness of the second lens along the optical axis, and CT3 is a center thickness of the third lens along the optical axis.

15. The optical imaging lens assembly according to claim 14 ,

wherein 0.4<CT5/CT4<0.9, where CT4 is a center thickness of the fourth lens along the optical axis, and CT5 is a center thickness of the fifth lens along the optical axis.

16. The optical imaging lens assembly according to claim 1 , wherein the optical imaging lens assembly further comprises a stop, and

wherein 0.6<SD/TTL <0.9, where SD is a distance along the optical axis from the stop to an image-side surface of the fifth lens, and TTL is the distance along the optical axis from the object-side surface of the first lens to the imaging plane of the optical imaging lens assembly.

17. The optical imaging lens assembly according to claim 16 ,

wherein 0.7<TD/SL<1, where TD is a distance along the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens, and SL is a distance along the optical axis from the stop to the imaging plane of the optical imaging lens assembly.