Camera lens assembly
A camera lens assembly, sequentially from an object side to an image side along an optical axis, includes: a first lens having a negative refractive power; a second lens having a positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a third lens having a positive refractive power, and an object-side surface thereof is a convex surface; a fourth lens having a negative refractive power, and an image-side surface thereof is a concave surface; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power, and at least one of an object-side surface and an image-side surface thereof has an inflection point. Half of a maximal field-of-view HFOV of the camera lens assembly satisfies: HFOV≥55°.
1. A camera lens assembly, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, sequentially from an object side to an image side along an optical axis,
wherein,
the first lens has a negative refractive power,
the second lens has a positive refractive power, an object-side surface of the second lens is a convex surface and an image-side surface of the second lens is a concave surface;
the third lens has a positive refractive power, and an object-side surface of the third lens is a convex surface;
the fourth lens has a negative refractive power, and an image-side surface of the fourth lens is a concave surface;
the fifth lens has a positive refractive power;
the sixth lens has a negative refractive power, and at least one of an object-side surface and an image-side surface of the sixth lens has an inflection point;
the camera lens assembly satisfies:
HFOV≥ 55°;
0 <T 45 /f 45×10<0.5; and
1<ImgH/ DT 52<4,
wherein HFOV is half of a maximal field-of-view of the camera lens assembly, T 45 is a spaced distance on the optical axis between the fourth lens and the fifth lens, f 45 is a combined focal length of the fourth lens and the fifth lens, ImgH is half of a diagonal length of an effective pixel area on an image plane of the camera lens assembly, and DT 52 is a maximum effective radius of an image-side surface of the fifth lens.
2. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: 3<f/CT 3 <5,
where f is a total effective focal length of the camera lens assembly and CT 3 is a center thickness of the third lens on the optical axis.
3. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: 7<ΣCT×(R 3 +R 4 )<11,
where ΣCT is a sum of center thicknesses of the first lens to the sixth lens on the optical axis, R 3 is a radius of curvature of the object-side surface of the second lens, and R 4 is a radius of curvature of the image-side surface of the second lens.
4. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: 1<DT 12 /SAG 12 <3,
where DT 12 is a maximum effective radius of an image-side surface of the first lens and SAG 12 is an axial distance from an intersection of the image-side surface of the first lens and the optical axis to an apex of an effective radius of the image-side surface of the first lens.
5. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: |SAG 52 |/CT 5 <1,
where SAG 52 is an axial distance from an intersection of an image-side surface of the fifth lens and the optical axis to an apex of an effective radius of the image-side surface of the fifth lens, and CT 5 is a center thickness of the fifth lens on the optical axis.
6. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: 0<CT 3 /CT 6 <3,
where CT 3 is a center thickness of the third lens on the optical axis, and CT 6 is a center thickness of the sixth lens on the optical axis.
7. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: |R 5 −R 8 |/|R 5 +R 8 |<1,
where R 5 is a radius of curvature of the object-side surface of the third lens, and R 8 is a radius of curvature of the image-side surface of the fourth lens.
8. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: 1.6<TTL/ImgH<2,
where TTL is a distance on the optical axis from an object-side surface of the first lens to an image plane of the camera lens assembly, and ImgH is half of a diagonal length of an effective pixel area on the image plane of the camera lens assembly.
9. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: |f/f 34 |+|f/f 56 |<2,
where f is a total effective focal length of the camera lens assembly, f 34 is a combined focal length of the third lens and the fourth lens, and f 56 is a combined focal length of the fifth lens and the sixth lens.
10. The camera lens assembly according to claim 1 , wherein the camera lens assembly satisfies: f/f 123 <2.5,
where f is a total effective focal length of the camera lens assembly, and f 123 is a combined focal length of the first lens, the second lens and the third lens.
11. A camera lens assembly, comprising, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, sequentially from an object side to an image side along an optical axis,
wherein,
the first lens has a negative refractive power,
the second lens has a positive refractive power, an object-side surface of the second lens is a convex surface and an image-side surface of the second lens is a concave surface;
the third lens has a positive refractive power, and an object-side surface of the third lens is a convex surface;
the fourth lens has a negative refractive power, and an image-side surface of the fourth lens is a concave surface;
the fifth lens has a positive refractive power;
the sixth lens has a negative refractive power, and at least one of an object-side surface and an image-side surface of the sixth lens has an inflection point;
the camera lens assembly satisfies:
3 <f/CT 3<5;
1.6 <TTL/ImgH <2; and
1 <ImgH/DT 52<4,
where f is a total effective focal length of the camera lens assembly, CT 3 is a center thickness of the third lens on the optical axis, TTL is a distance on the optical axis from an object-side surface of the first lens to an image plane of the camera lens assembly, ImgH is half of a diagonal length of an effective pixel area on the image plane of the camera lens assembly, and DT 52 is a maximum effective radius of an image-side surface of the fifth lens.
12. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: |R 5 −R 8 |/|R 5 +R 8 |<1,
where R 5 is a radius of curvature of the object-side surface of the third lens, and R 8 is a radius of curvature of the image-side surface of the fourth lens.
13. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: HFOV≥55°,
where HFOV is half of a maximal field-of-view of the camera lens assembly.
14. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: 7<ΣCT×(R 3 −R 4 )<11,
where ΣCT is a sum of center thicknesses of the first lens to the sixth lens on the optical axis, R 3 is a radius of curvature of the object-side surface of the second lens, and R 4 is a radius of curvature of the image-side surface of the second lens.
15. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: f/f 123 <2.5,
where f is the total effective focal length of the camera lens assembly, and f 123 is a combined focal length of the first lens, the second lens and the third lens.
16. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: 1<DT 12 /SAG 12 <3,
where DT 12 is a maximum effective radius of an image-side surface of the first lens, and SAG 12 is an axial distance from an intersection of the image-side surface of the first lens and the optical axis to an apex of an effective radius of the image-side surface of the first lens.
17. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: |f/f 34 |+|f/f 56 |<2,
where f is the total effective focal length of the camera lens assembly, f 34 is a combined focal length of the third lens and the fourth lens, and f 56 is a combined focal length of the fifth lens and the sixth lens.
18. The camera lens assembly according to claim 11 , wherein the camera lens assembly satisfies: |SAG 52 |/CT 5 <1,
where SAG 52 is an axial distance from an intersection of an image-side surface of the fifth lens and the optical axis to an apex of an effective radius of the image-side surface of the fifth lens, and CT 5 is a center thickness of the fifth lens on the optical axis.