Split lens and camera module and electronic apparatus

Patent metadata

Field	Value
Publication number	US-11659263-B2
Application number	US-201816497433-A
Country	US
Kind code	B2
Filing date	Mar 22, 2018
Priority date	Mar 24, 2017
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A split lens includes a first lens group including a first set of lenses, a second lens group including a second set of lenses, and at least one light shielding element. The light shielding element is disposed between the lens at the bottom position of the first lens group and the lens at the top position of the second lens group, such that a predetermined light path is formed between the first lens group and the second lens group, thereby conforming to the structure of the split lens.

First claim

What is claimed is:

1. A split lens, comprising:
at least a first lens group comprising at least a first lens set and a first lens barrel, wherein said first lens set is mounted in said first lens barrel;
at least a second lens group comprising at least a second lens set and a second lens barrel, wherein said second lens set is mounted in said second lens barrel; and
at least a light shielding element disposed between said first lens set and said second lens set to form a predetermined light path between said first lens group and said second lens group when said first lens group and said second lens group are stably assembled together;
wherein at least one of said light shielding elements is attached to a top surface of the lens at an upper position of said second lens group or a bottom surface of the lens at a bottom position of said first lens group.

2. The split lens, as recited in claim 1 , wherein said second lens set comprises two or more lens, wherein one of said light shielding elements is attached to the top surface of said lens at the upper position of said second lens set.

3. The split lens, as recited in claim 1 , wherein said first lens set comprises two or more lens, wherein one of said light shielding elements is attached to a top surface of said lens at the bottom position of said first lens set.

4. The split lens, as recited in claim 1 , wherein said first lens set comprises two or more lens, wherein said second lens set comprises two or more lens, wherein said light shielding elements are attached at bottom surfaces of said lens in said first lens set and top surfaces of said lens in said second lens set respectively.

5. The split lens, as recited in claim 1 , wherein at least one of said light shielding elements is disposed between two adjacent lenses which are located at said first lens group and said second lens group respectively.

6. The split lens, as recited in claim 5 , wherein said two adjacent lenses are configured as an upper lens and a bottom lens respectively, wherein said light shielding element is attached to the bottom surface of said upper lens.

7. The split lens, as recited in claim 5 , wherein said two adjacent lenses are configured as an upper lens and a bottom lens respectively, wherein said light shielding element is attached to the top surface of said bottom lens.

8. The split lens, as recited in claim 1 , further comprising at least one spacing element disposed between two lenses of at least one of said first lens set and said second lens set.

9. The split lens, as recited in claim 1 , wherein said first lens barrel further comprises a first retention portion formed at a bottom end portion of said first lens barrel, and said second lens barrel further comprises a second retention portion formed at a top end portion of said second lens barrel, wherein said first retention portion and said second retention portion are connected with each other, such that said first lens barrel and said second lens barrel are assembled to form an integrated lens configuration.

10. The split lens, as recited in claim 9 , wherein a diameter of said bottom end portion of said first lens barrel is smaller than a diameter of said top end portion of said second lens barrel, such that said first retention portion of said first lens barrel is configured to fit into said second retention portion of said second lens barrel so as to stably couple said first lens barrel with said second lens barrel.

11. The split lens, as recited in claim 9 , further comprising a connecting element, wherein said first retention portion of said first lens barrel is adhered with said second retention portion of said second lens barrel by said connecting element.

12. The split lens, as recited in claim 9 , further comprising a connecting element, wherein said second lens barrel further has a retention groove formed at a top side of said second lens barrel corresponding to said first retention portion of said first lens barrel, wherein said connecting element is filled in said retention groove to couple said first retention portion and said second retention portion with each other.

13. The split lens, as recited in claim 9 , wherein said first retention portion is protruded from an outer lateral side of said first lens barrel, wherein said first retention portion and said second retention portion are connected with each other at a position that said bottom end portion of said first lens barrel is extended into said second retention portion for connecting said first lens barrel and said second lens barrel with each other.

14. The split lens, as recited in claim 1 , wherein said light shielding element is a coating layer coated on a lens of one of said first lens set and said second lens set.

15. The split lens, as recited in claim 1 , wherein said light shielding element is a black rubber layer coated on a lens of one of said first lens set and said second lens set.

16. The split lens, as recited in claim 1 , wherein said light shielding element has an annular shape and is made of opaque material applied on a surface portion of a lens of one of said first lens set and said second lens set for blocking light from passing through said surface portion of said lens covered by said light shielding element.

17. The split lens, as recited in claim 16 , wherein said light shielding element is applied at a peripheral edge portion of said lens, such that said light path is formed at a center portion of said lens.

18. A method of manufacturing a split lens, comprising the steps of:
(a) forming at least a first lens group by mounting at least a first lens set in a first lens barrel;
(b) forming at least a second group by mounting at least a second lens set in a second lens barrel;
(c) disposing at least a light shielding element between said first lens set and said second lens set to form a predetermined light path between said first lens group and said second lens group, wherein at least one of said light shielding elements is attached to a top surface of the lens at an upper position of said second lens group or a bottom surface of the lens at a bottom position of said first lens group; and
(d) assembling said first lens group and said second lens group together.

19. The method as recited in claim 18 wherein, in the step (c), said light shielding element is attached to the bottom surface of a lens of said first lens set.

20. The method as recited in claim 18 wherein, in the step (c), said light shielding element is attached to the top surface of a lens of said second lens set.

21. The method as recited in claim 18 wherein, in the step (c), said light shielding element is disposed between two adjacent lenses which are located at said first lens group and said second lens group respectively.

22. The method, as recited in claim 18 , further comprising a step of disposing at least one spacing element between two lenses of at least one of said first lens set and said second lens set.

23. The method as recited in claim 18 wherein, in the steps (a) and (b), said first lens barrel further comprises a first retention portion formed at a bottom end portion of said first lens barrel, and said second lens barrel further comprises a second retention portion formed at a top end portion of said second lens barrel, wherein, in the step (c), said first retention portion and said second retention portion are connected with each other, such that said first lens barrel and said second lens barrel are as

Assignees

• Ningbo Sunny Opotech Co Ltd

Inventors

• Wang Mingzhu
• Wang Shoujie
• Guo Nan
• Ding Liang
• Zhao Bojie
• Chen Feifan
• Liu Chunmei
• Mei Qimin

Classifications

• G02B13/001

  Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras (G02B23/243 takes precedence) · CPC title

• G03B19/07

  having more than one objective · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/55 Primary

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• G03B13/36

  Autofocus systems · CPC title