Camera lens system
An optical imaging lens assembly that may have six lens components. The optical imaging lens assembly may provide a 74 degree field of view. The first and fourth lens components may have positive refractive power. The second, third, and sixth lens components may have negative refractive power. The first lens component may have convex object-side and image-side refractive surfaces. The second and fifth lens components may have convex object-side and concave image-side refractive surfaces. The fourth lens component may have concave object-side and convex image-side refractive surfaces. The sixth lens component may have concave object-side and image-side refractive surfaces. The refracting surfaces may be aspheric. The optical imaging lens assembly may have a total track length of less than 6 millimeters and be part of a digital camera integrated into a portable wireless communications device.
1. An optical imaging lens assembly comprising, in order from an object side to an image side:
a first lens component with positive refractive power and a convex object-side refractive surface;
a second lens component with negative refractive power, a convex object-side refractive surface, and a concave image-side refractive surface;
a third lens component with refractive power;
a fourth lens component with refractive power and a convex image-side refractive surface;
a fifth lens component with refractive power, a convex object-side refractive surface, and a concave image-side refractive surface; and
a sixth lens component with negative refractive power, an object-side refractive surface that is concave in a paraxial region, and a concave image-side refractive surface.
2. The optical imaging lens assembly of claim 1 wherein the first lens component has a convex image-side refractive surface.
3. The optical imaging lens assembly of claim 1 wherein the fourth lens component has a concave object-side refractive surface.
4. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
−2.4< f 2 /f<− 1.3.
5. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
−1.6< f 6 /f<− 0.7.
6. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
−1.5<( Ri+R 2 )/( Ri−R 2 )<−0.7.
7. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
1.2<( R 3+ R 4 )/( R 3− R 4)<4.7.
8. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
−0.3<( Rii+Ri 2 )/( Rii−R 12 )<2.9.
9. The optical imaging lens assembly of claim 1 wherein the following relation is satisfied:
0.7< R 9/ R 10<1.7.
10. The optical imaging lens assembly of claim 1 wherein at least one of the object-side refractive surface or the image-side refractive surface of each of the six lens components is aspheric.
11. The optical imaging lens assembly of claim 1 wherein the object-side refractive surface and the image-side refractive surface of each of the six lens components are both aspheric.
12. The optical imaging lens assembly of claim 1 wherein the fourth lens component has a positive refractive power.
13. The optical imaging lens assembly of claim 12 wherein the third lens component has a negative refractive power.
14. A portable wireless communications device comprising:
an outer housing; and
a digital camera integrated inside the outer housing, the digital camera having an optical imaging lens assembly comprising, in order from an object side to an image side:
a first lens component with positive refractive power and a convex object-side refractive surface;
a second lens component with negative refractive power, a convex object-side refractive surface, and a concave image-side refractive surface;
a third lens component with refractive power;
a fourth lens component with refractive power and a convex image-side refractive surface;
a fifth lens component with refractive power, a convex object-side refractive surface, and a concave image-side refractive surface; and
a sixth lens component with negative refractive power, an object-side refractive surface that is concave in a paraxial region, and a concave image-side refractive surface.
15. The portable wireless communications device of claim 14 wherein the third lens component has a negative refractive power.
16. The portable wireless communications device of claim 14 wherein the first lens component has a convex image-side refractive surface.
17. The portable wireless communications device of claim 14 wherein the fourth lens component has a concave object-side refractive surface.
18. The portable wireless communications device of claim 14 wherein the optical imaging lens assembly has a total track length of less than 6 millimeters.