Optical photographing lens assembly, image capturing device and electronic device
An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are both aspheric. The sixth lens element with refractive power has an object-side surface and an image-side surface being both aspheric. The optical photographing lens assembly has a total of six lens elements with refractive power.
1. An optical photographing lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof;
a second lens element;
a third lens element;
a fourth lens element having negative refractive power;
a fifth lens element comprising at least one inflection point, wherein an object-side surface and an image-side surface of the fifth lens element are both aspheric; and
a sixth lens element;
wherein the optical photographing lens assembly has a total of six lens elements; an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, wherein at least three of V1, V2, V3, V4, V5 and V6 are smaller than 27;
wherein a focal length of the optical photographing lens assembly is f, a maximum image height of the optical photographing lens assembly is ImgH, an axial distance between the object-side surface of the first lens element and an image surface is TL, and the following conditions are satisfied:
2.0< f /Img H ; and
−0.70< TL/f< 1.15.
2. The optical photographing lens assembly of claim 1 , wherein a half of a maximal field of view of the optical photographing lens assembly is HFOV, and the following condition is satisfied:
10.0 degrees<HFOV<25.0 degrees.
3. The optical photographing lens assembly of claim 1 , wherein a sum of all axial distances between adjacent lens elements of the six lens elements is ΣAT, an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, and the following condition is satisfied:
5.0<Σ AT /( T 12+ T 23).
4. The optical photographing lens assembly of claim 1 , further comprising:
an aperture stop disposed between an imaged object and the third lens element.
5. The optical photographing lens assembly of claim 4 , wherein an axial distance between the aperture stop and the image surface is SL, the axial distance between the object-side surface of the first lens element and the image surface is TL, and the following condition is satisfied:
0.85 <SL/TL< 1.05.
6. The optical photographing lens assembly of claim 1 , wherein focal lengths of the fifth lens element and the sixth lens element have different signs.
7. The optical photographing lens assembly of claim 1 , wherein each of at least three surfaces among object-side surfaces and image-side surfaces of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element comprises at least one inflection point.
8. The optical photographing lens assembly of claim 1 , wherein the first lens element has an image-side surface being convex in a paraxial region thereof.
9. The optical photographing lens assembly of claim 1 , wherein the fifth lens element has an object-side surface being concave in a paraxial region thereof.
10. The optical photographing lens assembly of claim 1 , wherein the third lens element has negative refractive power.
11. The optical photographing lens assembly of claim 1 , wherein at least three of the six lens elements have negative refractive power.
12. The optical photographing lens assembly of claim 1 , wherein the sixth lens element has positive refractive power.
13. The optical photographing lens assembly of claim 1 , wherein the third lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof.
14. An image capturing device, comprising:
the optical photographing lens assembly of claim 1 ; and
an image sensor, wherein the image sensor is disposed on the image surface of the optical photographing lens assembly.
15. An electronic device, comprising:
the image capturing device of claim 14 .
16. An optical photographing lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof;
a second lens element having negative refractive power;
a third lens element having an image-side surface being concave in a paraxial region thereof;
a fourth lens element;
a fifth lens element comprising at least one inflection point, wherein an object-side surface and an image-side surface of the fifth lens element are both aspheric; and
a sixth lens element;
wherein the optical photographing lens assembly has a total of six lens elements; an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, wherein at least three of V1, V2, V3, V4, V5 and V6 are smaller than 27;
wherein a focal length of the optical photographing lens assembly is f, a maximum image height of the optical photographing lens assembly is ImgH, an axial distance between the object-side surface of the first lens element and an image surface is TL, and the following conditions are satisfied:
2.0< f /Img H ; and
0.70< TL/f< 1.15.
17. The optical photographing lens assembly of claim 16 , wherein each of at least three surfaces among object-side surfaces and image-side surfaces of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element comprises at least one inflection point.
18. The optical photographing lens assembly of claim 16 , wherein a sum of all axial distances between adjacent lens elements of the six lens elements is ΣAT, an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, and the following condition is satisfied:
5.0 <ΣAT /( T 12 +T 23).
19. The optical photographing lens assembly of claim 16 , wherein the fifth lens element has negative refractive power.
20. The optical photographing lens assembly of claim 16 , wherein the fourth lens element has an image-side surface being concave in a paraxial region thereof.
21. The optical photographing lens assembly of claim 16 , wherein the Abbe number of the first lens element is V1, the Abbe number of the second lens element is V2, the Abbe number of the third lens element is V3, the Abbe number of the fourth lens element is V4, the Abbe number of the fifth lens element is V5, the Abbe number of the sixth lens element is V6, wherein at least four of V1, V2, V3, V4, V5 and V6 are smaller than 27.
22. The optical photographing lens assembly of claim 16 , wherein at least three of the six lens elements have negative refractive power.
23. The optical photographing lens assembly of claim 16 , wherein the third lens element has negative refractive power.
24. The optical photographing lens assembly of claim 16 , further comprising:
an aperture stop disposed between an imaged object and the third lens element.
25. The optical photographing lens assembly of claim 16 , wherein focal lengths of the fifth lens element and the sixth lens element have different signs.
26. An image capturing device, comprising:
the optical photographing lens assembly of claim 16 ; and
an image sensor, wherein the image sensor is disposed on the image surface of the optical photographing lens assembly.
27. An electronic device, comprising:
the image capturing device of claim 26 .