Focusing device, optical imaging system, image capturing module and electronic device

An optical imaging system and focusing technology, which is applied in the field of optical imaging, can solve problems such as complex calibration process and long auto-focus response time, and achieve the effect of clear and uniform focusing imaging, satisfying the camera experience, and reducing the thickness

Inactive Publication Date: 2021-03-16
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of implementing this application, the inventors found that there are at least the following problems in the prior art: the existing voice coil motor technology is affected by temperature and mechanical vibration, requires a complicated calibration process, and has a long autofocus response time

Method used

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  • Focusing device, optical imaging system, image capturing module and electronic device
  • Focusing device, optical imaging system, image capturing module and electronic device
  • Focusing device, optical imaging system, image capturing module and electronic device

Examples

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no. 1 example

[0105] Please also refer to figure 2 and Figure 6 , the optical imaging system 100 of the first embodiment includes a cover glass, a protective layer 12, a light guide layer 14, an electro-deformable layer 16, a first lens L1, a second lens L2, and a third lens in order from the object side to the image side L3, a fourth lens L4 and an infrared filter L5.

[0106] Wherein, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is convex at the near optical axis; the object side S3 of the second lens L2 is concave at the near optical axis; the third lens L3 The object side S5 is concave at the near optical axis, and the image side S6 is convex at the near optical axis; the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0107] The object side and the image side of the protective layer 12 , the light guide layer 14 , and the electro-deformable lay...

no. 2 example

[0119] Please also refer to Figure 7 and Figure 8 , the optical imaging system 100 of the second embodiment includes a cover glass, a protective layer 12, a light guide layer 14, an electro-deformable layer 16, a first lens L1, a second lens L2, and a third lens in order from the object side to the image side L3, a fourth lens L4 and an infrared filter L5.

[0120] Wherein, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is convex at the near optical axis; the object side S3 of the second lens L2 is concave at the near optical axis; the third lens L3 The object side S5 is concave at the near optical axis, and the image side S6 is convex at the near optical axis; the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0121] The object side and the image side of the protective layer 12 , the light guide layer 14 , and the electro-deformable la...

no. 3 example

[0133] Please also refer to Figure 9 and Figure 10 , the optical imaging system 100 of the third embodiment includes a cover glass, a protective layer 12, a light guide layer 14, an electro-deformable layer 16, a first lens L1, a second lens L2, and a third lens in order from the object side to the image side L3, a fourth lens L4 and an infrared filter L5.

[0134] Wherein, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is convex at the near optical axis; the object side S3 of the second lens L2 is concave at the near optical axis; the third lens L3 The object side S5 is concave at the near optical axis, and the image side S6 is convex at the near optical axis; the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0135] The object side and the image side of the protective layer 12 , the light guide layer 14 , and the electro-deformable la...

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Abstract

The invention provides a focusing device, an optical imaging system, an image capturing module and an electronic device. The focusing device comprises a light guide layer and an electro-deformation layer from an object side to an image side along an optical axis, the image side surface of the light guide layer is flexible, the object side surface of the electro-deformation layer is glued with theimage side surface of the light guide layer, and the electro-deformation layer deforms after being electrified and drives the image side surface of the light guide layer to deform. According to the focusing device, the optical imaging system, the image capturing module and the electronic device, a complex calibration process is avoided, and the automatic focusing response time is shortened.

Description

technical field [0001] The invention relates to optical imaging technology, in particular to a focusing device, an optical imaging system, an imaging module and an electronic device. Background technique [0002] At present, the lens focus mode is divided into manual focus and automatic focus. Manual focusing requires manual adjustment of the focus ring, which has low shooting efficiency and requires high operating requirements for users. Auto focus is artificial intelligence auto focus. The camera focus system will always follow the focus with the selected focus point linkage and uninterrupted. The shooting efficiency is high and the operation is convenient. [0003] The existing autofocus adopts voice coil motor (VCM) technology, that is, the physical focus mode with clear imaging surface is realized by moving the entire lens group through the focus screw. [0004] During the process of implementing the present application, the inventor found at least the following probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/14G02B7/09G03B30/00
CPCG02B3/14G02B7/09
Inventor 邹金华刘彬彬李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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