Adjustable optical lens and camera module and aligning method thereof

Patent metadata

Field	Value
Publication number	US-11835784-B2
Application number	US-202016926786-A
Country	US
Kind code	B2
Filing date	Jul 13, 2020
Priority date	Dec 21, 2015
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

An adjustable optical lens, a camera module and an aligning method thereof are disclosed. The adjustable optical lens includes at least one lens element and an optical structure element. Each of the lens elements is successively and overlappingly arranged in an photosensitive apparatus of the optical structure element, wherein at least one of the lens elements is configured as an adjustable lens element whose assemble position is adjustable. The optical structure element has at least one adjusting channel and at least one fixing channel for adjusting and fixing the adjustable lens element respectively.

First claim

What is claimed is:

1. A camera module, comprising:
an optical sensor, and
an adjustable optical lens, which is optically coupled with said optical sensor, comprising two or more lens elements and an optical structure element, wherein said lens elements are spacedly arranged in order along an optical path of said optical sensor within said optical structure element, wherein at least one of said lens elements is configured as an adjustable lens element that an assemble position thereof is arranged to be adjustable along multiple directions selected from the group consisting of a horizontal direction, a vertical direction, an incline direction, and a peripheral direction to adjust relative positions between said adjustable lens element and other lens elements as well as a relative position between said adjustable lens element and said optical sensor before permanently affixed to said optical structure element, wherein one or more channels are provided in said optical structure element and positioned with respect to said adjustable lens element and reach an outer side surface of said optical structure element to communicate an interior space of said optical structure element with an outside environment thereof for adjusting and permanently fixing said adjustable lens element in position within said optical structure element;
wherein one or more of the one or more channels functions as an adjusting channel for adjusting said adjustable lens element within said optical structure element and reaches an outer top surface of said optical structure element to communicate an interior space of said optical structure element with an outside environment thereof, and an adjusting path and an adjusting quantum of the adjustable lens element is obtained by pre-assembling the camera module, electrifying the pre-assembled camera module, and obtaining one or more images captured by the pre-assembled camera module and analyzing the images;
wherein another one or more of the one or more channels functions as a fixing channel for permanently fixing said adjustable lens element in position within said optical structure element and
wherein positions of the adjusting channel and the fixing channel are different.

2. The camera module, as recited in claim 1 , wherein said optical structure element has a top portion and one of said lens elements is installed at said top portion of said optical structure element and arranged to be adjustable as said adjustable lens element.

3. The camera module, as recited in claim 1 , wherein said optical structure element has a middle portion and one or more said lens elements are installed at said middle portion of said optical structure element and each of which is arranged to be adjustable as said adjustable lens element.

4. The camera module, as recited in claim 2 , wherein said one or more channel is provided at a top side of said optical structure element.

5. The camera module, as recited in claim 2 , wherein said adjusting channel and said fixing channel are provided at a top side of said optical structure element.

6. The camera module, as recited in claim 2 , wherein said one or more channels is provided at a lateral side and a top side of said optical structure element.

7. The camera module, as recited in claim 2 , wherein said fixing channel is provided at a top side of said optical structure element.

8. The camera module, as recited in claim 2 , wherein said fixing channel is provided at a lateral side of said optical structure element.

9. The camera module, as recited in claim 1 , wherein said one or more channels is arranged to enable an external adjusting tool inserting into said adjusting channel to reach and contact said adjustable lens element to adjust said assemble position of said adjustable lens element which is capable of being adjusted along at least one direction, so as to align and calibrate a light path of said adjustable optical lens.

10. The camera module, as recited in claim 9 , wherein said external adjusting tool has an automatic function that is to automatically compute the adjusting path and the adjusting quantum of said adjustable lens element.

11. The camera module, as recited in claim 9 , wherein said fixing channel is arranged to enable applying an adhesive element to a portion of said adjustable lens element therethrough, and that after said adhesive element is solidified, said adjusted adjustable lens element is permanently fixed in position within said optical structure element.

12. The camera module, as recited in claim 11 , wherein said adjustable lens element has a top surface adapted for said adhesive element to be applied thereon to permanently fix said adjustable lens element in position within said optical structure element.

13. The camera module, as recited in claim 11 , wherein said adjustable lens element has a side surface adapted for said adhesive to be applied thereon to permanently fix said adjustable lens element in position within said optical structure element.

14. The camera module, as recited in claim 1 , wherein said adjustable lens element has at least one adjusting groove provided at an edge thereof in such a manner that an external adjusting tool is capable of inserting into said optical structure element and being retained at said adjusting groove to adjust said assemble position of said adjustable lens element.

Assignees

• Ningbo Sunny Opotech Co Ltd

Inventors

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

Classifications

• H10F39/804

  Containers or encapsulations · CPC title

• G02B7/003 Primary

  Alignment of optical elements (G02B7/001, G02B7/002 take precedence; for mirrors G02B7/1822) · CPC title

• G02B7/021

  for more than one lens · CPC title

• G02B7/025

  using glue · CPC title

• G02B27/62

  Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems · CPC title