Camera optical lens

Patent metadata

Field	Value
Publication number	US-10795131-B2
Application number	US-201816101628-A
Country	US
Kind code	B2
Filing date	Aug 13, 2018
Priority date	Nov 17, 2017
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, an aperture stop, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The camera optical lens further satisfies specific conditions.

First claim

What is claimed is:

1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, and a fifth lens a negative refractive power; wherein the camera optical lens further satisfies the following conditions:
0.83<f 1 /f<0.87; −2.9<f 2 /f<−2.7; −8.3<f 3 /f<−8.0;
0.55<f 4 /f<0.65; −0.55<f 5 /f<−0.45;
100<R 3 /(R 5 -R 6 )<120;
where
f: the focal length of the camera optical lens;
f 1 : the focal length of the first lens;
f 2 : the focal length of the second lens;
f 3 : the focal length of the third lens;
f 4 : the focal length of the fourth lens;
f 5 : the focal length of the fifth lens;
R 3 : the curvature radius of object side surface of the second lens;
R 5 : the curvature radius of object side surface of the third lens;
R 6 : the curvature radius of image side surface of the third lens.

2. The camera optical lens as described in claim 1 further satisfying the following conditions:
9.5<v 3 /n 3 <11.5;
1.25<n 3 /n 5 <1.35; where
v 3 : the abbe number of the third lens;
n 3 : the refractive power of the third lens;
n 5 : the refractive power of the fifth lens.

3. The camera optical lens as described in claim 1 , further satisfying the following conditions:
0.26<d 5 <0.29;
1.9<d 7 /d 9 <2.1; where
d 5 : the thickness on-axis of the third lens;
d 7 : the thickness on-axis of the fourth lens;
d 9 : the thickness on-axis of the fifth lens.

4. The camera optical lens as described in claim 1 further satisfying the following conditions:
3.7<f 1 <3.8; −11<f 2 <−10; −32<f 3 <−30;
2.2<f 4 <2.3; −2.0<f 5 <−1.8; where
f 1 : the focal length of the first lens;
f 2 : the focal length of the second lens;
f 3 : the focal length of the third lens;
f 4 : the focal length of the fourth lens;
f 5 : the focal length of the fifth lens.

5. The camera optical lens as described in claim 1 , further satisfying the following conditions:
1.5<n 1 <1.6;
1.6<n 2 <1.7;
1.9<n 3 <2.1;
1.5<n 4 <1.6;
1.52<n 5 <1.55; where
n 1 : the refractive power of the first lens;
n 2 : the refractive power of the second lens;
n 3 : the refractive power of the third lens;
n 4 : the refractive power of the fourth lens;
n 5 : the refractive power of the fifth lens.

6. The camera optical lens as described in claim 1 further satisfying the following conditions:
55<v 1 <57;
22<v 2 <25;
19.5<v 3 <21.5;
55<v 4 <57;
55<v 5 <58; where
v 1 : The abbe number of the first lens;
v 2 : The abbe number of the second lens;
v 3 : The abbe number of the third lens;
v 4 : The abbe number of the fourth lens;
v 5 : The abbe number of the fifth lens.

7. The camera optical lens as described in claim 1 , wherein the total optical length of the camera optical lens is less than or equal to 4.48 mm.

8. The camera optical lens as described in claim 1 , wherein the aperture F number of the camera optical lens is less than or equal to 1.8.

9. The camera optical lens as described in claim 1 further satisfying the following condition:
1.25<d 5 /d 3 <1.35; where
d 3 : the thickness on-axis of the second lens;
d 5 : the thickness on-axis of the third lens.

Assignees

• Aac Acoustic Tech Shenzhen Co Ltd
• Aac Communication Tech Changzhou Co Ltd

Inventors

• Wang Jianming

Classifications

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B9/60

  having five components only · CPC title

• G02B27/0025

  for optical correction, e.g. distorsion, aberration · CPC title

• G02B5/20

  Filters (polarising elements G02B5/30) · CPC title

• G02B1/041

  Lenses · CPC title