Optical imaging lens and electronic device comprising the same

Patent metadata

Field	Value
Publication number	US-9726856-B2
Application number	US-201514620199-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Oct 29, 2014
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element, the first lens element having an image-side surface with a concave part in a vicinity of its periphery, the second lens element has negative refractive power, the third lens element has an image-side surface with a convex part in a vicinity of its periphery, the fourth lens element has positive refractive power, the fifth lens element has an image-side surface with a concave part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis, and with a convex part in a vicinity of its periphery, where the optical imaging lens set does not include any lens element with refractive power other than said first, second, third, fourth, fifth and sixth lens elements.

First claim

What is claimed is:

1. An optical imaging lens set, from an object side toward an image side in order along an optical axis comprising: 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, said first to sixth lens elements having an object-side surface facing toward the object side as well as an image-side surface facing toward the image side, wherein:
said first lens element has an image-side surface with a concave part in a vicinity of its periphery;
said second lens element has negative refractive power;
said third lens element has an image-side surface with a convex part in a vicinity of its periphery;
said fourth lens element has positive refractive power, and has an object-side surface with a convex part in a vicinity of the optical axis;
said fifth lens element has an object-side surface with a convex part in a vicinity of the optical axis, and has an image-side surface with a concave part in a vicinity of the optical axis;
said sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis, an image-side surface with a convex part in a vicinity of its periphery; and
wherein the optical imaging lens set does not include any lens element with refractive power other than said first, second, third, fourth, fifth and sixth lens elements.

2. The optical imaging lens set of claim 1 , wherein the sum of all five air gaps AAG between each lens element from said first lens element to said sixth lens element along the optical axis, and an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship AAG/G45≦13.55.

3. The optical imaging lens set of claim 1 , wherein a distance TTL between said object-side surface of said first lens element to an image plane, and an air gap G34 between said third lens element and said fourth lens element along said optical axis satisfy a relationship TTL/G34≧24.09.

4. The optical imaging lens set of claim 3 , wherein an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship TTL/G45≦58.91.

5. The optical imaging lens set of claim 1 , wherein the sum of all five air gaps AAG between each lens element from said first lens element to said sixth lens element along the optical axis, and a thickness T4 of said fourth lens element along said optical axis satisfy a relationship AAG/T4≦3.71.

6. The optical imaging lens set of claim 5 , wherein a total thickness ALT of said first lens element, said second lens element, said third lens element, said fourth lens element, said fifth lens element and said sixth lens element along said optical axis, and an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship ALT/G45≦37.54.

7. The optical imaging lens set of claim 1 , wherein the sum of all five air gaps AAG between each lens element from said first lens element to said sixth lens element along the optical axis, and a thickness T6 of said sixth lens element along said optical axis satisfy a relationship AAG/T6≦2.72.

8. The optical imaging lens set of claim 7 , wherein an air gap G34 between said third lens element and said fourth lens element along said optical axis satisfies a relationship AAG/G34≧4.76.

9. The optical imaging lens set of claim 1 , wherein a distance BFL between the image-side surface of said sixth lens element to an image plane, and the sum of all five air gaps AAG between each lens element from said first lens element to said sixth lens element along the optical axis satisfy a relationship BFL/AAG≧0.57.

10. The optical imaging lens set of claim 9 , wherein a thickness T4 of said fourth lens element along said optical axis satisfies a relationship BFL/T4≦2.81.

11. The optical imaging lens set of claim 1 , wherein a thickness T2 of said second lens element along said optical axis, and an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship T2/G45≦3 0.21.

12. The optical imaging lens set of claim 1 , wherein an air gap G23 between said second lens element and said third lens element along said optical axis, and an air gap G34 between said third lens element and said fourth lens element along said optical axis satisfy a relationship G23/G34≧1.28.

13. The optical imaging lens set of claim 1 , wherein an air gap G34 between said third lens element and said fourth lens element along said optical axis, and an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship G34/G45≦1.64.

14. The optical imaging lens set of claim 1 , wherein an air gap G34 between said third lens element and said fourth lens element along said optical axis, and an air gap G45 between said fourth lens element and said fifth lens element along said optical axis satisfy a relationship G45/G34≧0.58.

15. The optical imaging lens set of claim 1 , wherein a distance TTL between said object-side surface of said first lens element to an image plane, and a thickness T4 of said fourth lens element along said optical axis satisfy a relationship TTL/T4≦14.11.

16. The optical imaging lens set of claim 15 , wherein an air gap G23 between said second lens element and said third lens element along said optical axis satisfies a relationship TTL/G23≦27.12.

17. An electronic device, comprising:
a case; and
an image module disposed in said case and comprising:
an optical imaging lens set of claim 1 ;
a barrel for the installation of said optical imaging lens set;
a module housing unit for the installation of said barrel;
a substrate for the installation of said module housing unit; and
an image sensor disposed on the substrate and disposed at an image side of said optical imaging lens set.

Assignees

• Chen Shih-Han
• Jhang Jia-Sin
• Gong Jinhui
• Genius Electronic Optical Co Ltd

Inventors

• Chen Shih-Han
• Jhang Jia-Sin
• Gong Jinhui

Classifications

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B9/62

  having six components only · CPC title

• G02B7/021

  for more than one lens · CPC title