Photographing lens and electronic apparatus
Provided are photographing optical lens assembly and an electronic apparatus. The photographing optical lens assembly includes a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens; a fourth lens, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The first to sixth lenses are sequentially arranged from an object side to an image side, and the sixth lens has a concave image-side surface in a region around an optical axis.
1. Photographing optical lens assembly comprising:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power; and
a sixth lens having a negative refractive power,
wherein the first to sixth lenses are sequentially arranged from an object side to an image side, the sixth lens has a concave image-side surface in a region around an optical axis, and the photographing optical lens assembly satisfies the following formulas:
−1.4< f 2/ f<− 0.5, and
1.0< f 3/ f< 3.0, <Formulas>
where f2 denotes a focal length of the second lens, f3 denotes a focal length of the third lens, and f denotes a focal length of the photographing optical lens assembly.
2. The photographing optical lens assembly of claim 1 , wherein the sixth lens has at least one inflection point at a position that does not intersect the optical axis.
3. The photographing optical lens assembly of claim 1 , wherein the first lens has a convex object-side surface, and the second lens has a concave image-side surface.
4. The photographing optical lens assembly of claim 1 , wherein the photographing optical lens assembly satisfies the following formula:
20< v 1− v 2<70, <Formula>
where v1 denotes an Abbe number of the first lens, and v2 denotes an Abbe number of the second lens.
5. The photographing optical lens assembly of claim 1 , wherein the sixth lens has a bi-concave shape in a region around the optical axis.
6. The photographing optical lens assembly of claim 5 , wherein the photographing optical lens assembly satisfies the following formulas:
0.2< f 5/ f< 1.5,
−1.5< f 6/ f<− 0.1, <Formulas>
where f5 denotes a focal length of the fifth lens, f6 denotes a focal length of the sixth lens, and f denotes the focal length of the photographing optical lens assembly.
7. The photographing optical lens assembly of claim 1 , wherein the photographing optical lens assembly satisfies the following formula:
−2.0<( r 11+ r 12)/( r 11− r 12)<−0.1, <Formula>
where r11 denotes a paraxial radius of curvature of an object-side surface of the first lens, and r12 denotes a paraxial radius of curvature of an image-side surface of the first lens.
8. The photographing optical lens assembly of claim 1 , wherein the first to sixth lenses are formed of a plastic material.
9. The photographing optical lens assembly of claim 1 , wherein the photographing optical lens assembly satisfies the following formulas:
r 11<| r 12|,
| r 52|<| r 42|, <Formulas>
where r11 denotes a paraxial radius of curvature of an object-side surface of the first lens, r12 denotes a paraxial radius of curvature of an image-side surface of the first lens, r42 denotes the paraxial radius of curvature of the image-side surface of the fourth lens, and r52 denotes a paraxial radius of curvature of an image-side surface of the fifth lens.
10. The photographing optical lens assembly of claim 1 , wherein the third lens has a positive refractive power and the fourth lens has a negative refractive power.
11. Photographing optical lens assembly comprising:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power; and
a sixth lens having a negative refractive power,
wherein the first to sixth lenses are sequentially arranged from an object side to an image side, the third lens has a concave meniscus shape toward the image side in a region around the optical axis, the sixth lens has a concave image-side surface in a region around an optical axis, and the photographing optical lens assembly satisfies the following formulas:
−2.5< f 2/ f<− 0.5, and
1.0< f 3/ f< 3.0, <Formulas>
where f2 denotes a focal length of the second lens, f3 denotes a focal length of the third lens, and f denotes a focal length of the photographing optical lens assembly.
12. The photographing optical lens assembly of claim 11 , wherein the third lens has a positive refractive power.
13. Photographing optical lens assembly comprising:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power; and
a sixth lens having a negative refractive power,
wherein the first to sixth lenses are sequentially arranged from an object side to an image side, the fourth lens has a concave image-side surface in a region around the optical axis, the fourth lens has at least one inflection point at a position that does not intersect the optical axis, the sixth lens has a concave image-side surface in a region around an optical axis, and the photographing optical lens assembly satisfies the following formulas:
−2.5< f 2/ f<− 0.5, and
1.0< f 3/ f< 3.0, <Formulas>
where f2 denotes a focal length of the second lens, f3 denotes a focal length of the third lens, and f denotes a focal length of the photographing optical lens assembly.
14. The photographing optical lens assembly of claim 13 , wherein the fourth lens has a positive refractive power.
15. Photographing optical lens assembly comprising:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power; and
a sixth lens having a negative refractive power,
wherein the first to sixth lenses are sequentially arranged from an object side to an image side, the sixth lens has a concave image-side surface in a region around an optical axis, and wherein the photographing optical lens assembly satisfies the following formulas:
0.4< f 1/ f< 1.2,
1.0< f 3/ f< 3.0,
1.0< f 4/ f, <Formulas>
where f1 denotes a focal length of the first lens, f3 denotes a focal length of the third lens, f4 denotes a focal length of the fourth lens, and f denotes the focal length of the photographing optical lens assembly.