Camera module and optical lens thereof, optical lens sheet and fabrication method therefor, and method for assembling large wide-angle camera module

Patent metadata

Field	Value
Publication number	US-12481114-B2
Application number	US-202017772636-A
Country	US
Kind code	B2
Filing date	Aug 28, 2020
Priority date	Oct 29, 2019
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

The present disclosure provides a camera module and an optical lens thereof, an optical lens element and a manufacturing method therefor, and a method for assembling a large wide-angle camera module, wherein the camera module comprises a lens and a photosensitive assembly. The lens comprises a lens barrel, at least one first lens element unit and at least one second lens element unit, and is further provided with at least one notch, wherein the first lens element unit and the second lens element unit are disposed in the lens barrel, and the first lens element unit is configured as a non-rotating body, and wherein the notch is provided in the lens barrel, or the notch is formed in the first lens element unit, or the notch is formed in the second lens element unit, and the first lens element unit is marked by means of the notch.

First claim

What is claimed is:

1 . An optical lens, comprising a lens barrel, at least one first lens element unit and at least one second lens element unit, wherein the first lens element unit and the second lens element unit are disposed in the lens barrel, and the first lens element unit is a non- rotationally symmetrical lens element, wherein the optical lens is further provided with at least one notch, and wherein the notch is provided on the lens barrel, and the first lens element unit is marked by means of the notch, wherein the first lens element unit is directionally mounted in the lens barrel according to a position of the notch, so that a position and a shape of an imaging plane of the optical lens are determined by visually identifying the position of the notch.

2 . The optical lens according to claim 1 , wherein the first lens element unit comprises an effective diameter portion and a structural portion, and wherein the structural portion extends outward from the effective diameter portion, and the notch is located at a fixed preset angle relative to the effective diameter portion of the first lens element unit, so as to determine the position and angle of the effective diameter portion according to the position of the notch;
wherein the lens barrel comprises a lens barrel main body and is further provided with a lens element mounting cavity, wherein the first lens element unit and the second lens element unit are fixed in the lens element mounting cavity by the lens barrel main body, and wherein the first lens element unit is directionally mounted in the lens element mounting cavity based on the position of the notch.

3 . The optical lens according to claim 2 , wherein the lens barrel main body of the lens barrel has a lens barrel inner wall and a lens barrel outer wall, and wherein the notch is formed in the lens barrel inner wall in a cut-edge manner.

4 . The optical lens according to claim 2 , wherein the lens barrel main body of the lens barrel has a lens barrel inner wall and a lens barrel outer wall, and wherein the notch penetrates the lens barrel inner wall and the lens barrel outer wall in a cut-edge manner.

5 . The optical lens according to claim 2 , wherein the first lens element unit further comprises an identification portion, wherein the identification portion extends radially outward from the structural portion, and wherein the identification portion correspondingly marks the effective diameter portion, and the notch is adapted to the identification portion, so that the first lens element unit is engaged with the notch.

6 . An optical lens, comprising a lens barrel and an optical system, wherein the optical system is disposed in the lens barrel, the optical system further comprises at least one first lens element unit and at least one second lens element unit, wherein the first lens element unit and the second lens element unit are disposed in the lens barrel, wherein the first lens element unit is a non-rotationally symmetrical lens element, wherein the optical lens is further provided with at least one notch, and wherein the notch is provided on the optical system, and the first lens element unit is marked by means of the notch, wherein the first lens element unit is directionally mounted in the lens barrel according to a position of the notch, so that a position and a shape of an imaging plane of the optical lens are determined by visually identifying the position of the notch;
wherein the first lens element unit comprises an effective diameter portion and a structural portion, and wherein the structural portion extends outward from the effective diameter portion, and the notch is located at a fixed preset angle relative to the effective diameter portion of the first lens element unit, so as to determine the position and angle of the effective diameter portion according to the position of the notch.

7 . The optical lens according to claim 6 , wherein the notch is formed in the at least one first lens element unit of the optical system, and wherein the notch corresponds to the effective diameter portion of the first lens element unit, so as to identify the position and shape of the effective diameter portion according to the identified notch;
wherein the lens barrel comprises a lens barrel main body and at least one identification unit, and wherein the identification unit is adapted to the notch, and when the first lens element unit is mounted on the lens barrel main body, the identification unit is inserted into the notch.

8 . The optical lens according to claim 6 , wherein the notch is formed in the at least one second lens element unit of the optical system, and wherein the notch corresponds to the effective diameter portion of the first lens element unit, so as to identify the position and shape of the effective diameter portion according to the identified notch;
wherein the lens barrel comprises a lens barrel main body and at least one identification unit, and wherein the identification unit is adapted to the notch, and when the first lens element unit is mounted on the lens barrel main body, the identification unit is inserted into the notch.

9 . A camera module, comprising:
a photosensitive assembly; and an optical lens, comprising a lens barrel, at least one first lens element unit and at least one second lens element unit, wherein the first lens element unit and the second lens element unit are disposed in the lens barrel, and the first lens element unit is configured as a non-rotating body, wherein the optical lens is further provided with at least one notch, and wherein the notch is provided on the lens barrel, and the first lens element unit is marked by means of the notch; wherein the first lens element unit comprises an effective diameter portion and a structural portion, and wherein the structural portion extends outward from the effective diameter portion, and the notch is located at a fixed preset angle relative to the effective diameter portion of the first lens element unit, so as to determine the position and angle of the effective diameter portion according to a position of the notch; wherein the first lens element unit and the second lens element unit form an imaging plane on an upper surface of a photosensitive element of the photosensitive assembly, and mounting positions of the optical lens and the photosensitive assembly are adjusted based on a position and angle of the imaging plane.

10 . The camera module according to claim 9 , wherein the photosensitive assembly comprises a circuit board and a-the photosensitive element, wherein the photosensitive element is conductively disposed on the circuit board, and wherein the optical lens is disposed on a photosensitive path of the photosensitive element.

11 . The camera module according to claim 9 , further comprising an optical lens fixing device, wherein the lens barrel of the optical lens is directionally fixed to the optical lens fixing device based on the position of the identification element, and a relative position of the imaging plane to a photosensitive imaging region of the photosensitive element is identified by the position of the identification element visually identified, to further adjust the optical lens fixing device, so that the imaging plane is adapted to the photosensitive imaging region of the photosensitive element.

12 . The camera module according to claim 9 , further comprising a motor and a motor housing, wherein the lens barrel is directionally locked to the motor housing by the motor at a fixed height based on the position of the identification element, and a relative position of the imaging plane to a photosensitive imaging region of the photosens

Assignees

• Ningbo Sunny Opotech Co Ltd

Inventors

• Zhou Kailun
• Wu Bing
• Guo Meishan
• Li Wei
• Li Wenbin
• Huang Yu
• Jin Yan

Classifications

• G03B17/12

  with means for supporting objectives, supplementary lenses, filters, masks, or turrets · CPC title

• G02B7/023

  permitting adjustment · CPC title

• G02B7/005

  Motorised alignment · CPC title

• G02B3/04

  with continuous faces that are rotationally symmetrical but deviate from a true sphere {, e.g. so called "aspheric" lenses} · CPC title

• G02B7/003

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