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Optical system, image capturing module and terminal

An optical system and near optical axis technology, applied in optics, optical components, instruments, etc., can solve problems such as image distortion, reduced user experience, increased aberration, etc., to correct aberrations, improve imaging quality, and correct chromatic aberrations Effect

Active Publication Date: 2022-08-02
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most optical systems with wide-angle characteristics will inevitably cause large distortion when realizing wide-angle shooting, especially the peripheral field of view of the optical system is most affected by distortion; at the same time, excessive distortion of the peripheral field of view will lead to increased aberrations , the image distortion is obvious, and the user experience is reduced

Method used

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  • Optical system, image capturing module and terminal
  • Optical system, image capturing module and terminal
  • Optical system, image capturing module and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] For a schematic structural diagram of the optical system 100 in this embodiment, see figure 1 As shown, the optical system 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8 and the filter L9, the diaphragm ST is located between the image side S6 of the third lens L3 and the object side S7 of the fourth lens L4, and the imaging surface IMG of the optical system 100 is located in the filter The sheet L9 is away from the side of the eighth lens L8. The materials of the first lens L1, the second lens L2, the sixth lens L6, the seventh lens L7 and the eighth lens L8 are all plastics; the materials of the third lens L3, the fourth lens L4 and the fifth lens L5 are all glass, The filter L9 is an infrared cut-off filter made of glass.

[0090]The first lens L1 has a negative refractive...

Embodiment 2

[0107] For a schematic structural diagram of the optical system 100 in this embodiment, see image 3 As shown, the optical system 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8 and the filter L9, the diaphragm ST is located between the image side S6 of the third lens L3 and the object side S7 of the fourth lens L4, and the imaging surface IMG of the optical system 100 is located in the filter The sheet L9 is away from the side of the eighth lens L8. The materials of the first lens L1, the second lens L2, the sixth lens L6, the seventh lens L7 and the eighth lens L8 are all plastics; the materials of the third lens L3, the fourth lens L4 and the fifth lens L5 are all glass, The filter L9 is an infrared cut-off filter made of glass.

[0108] The first lens L1 has a negative refractiv...

Embodiment 3

[0121] For a schematic structural diagram of the optical system 100 in this embodiment, see Figure 5 As shown, the optical system 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8 and the filter L9, the diaphragm ST is located between the image side S6 of the third lens L3 and the object side S7 of the fourth lens L4, and the imaging surface IMG of the optical system 100 is located in the filter The sheet L9 is away from the side of the eighth lens L8. The materials of the first lens L1, the second lens L2, the sixth lens L6, the seventh lens L7 and the eighth lens L8 are all plastics; the materials of the third lens L3, the fourth lens L4 and the fifth lens L5 are all glass, The filter L9 is an infrared cut-off filter made of glass.

[0122] The first lens L1 has a negative refracti...

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Abstract

The invention discloses an optical system, an image capturing module and a terminal. The optical system comprises a first lens with negative refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power, a fifth lens with positive refractive power and a sixth lens with positive refractive power which are sequentially arranged along an optical axis from an object side to an image side, the optical system comprises a seventh lens with negative refractive power and an eighth lens with positive refractive power, the number of the lenses with the refractive power is eight, and therefore the optical system has a large shooting range and can ensure that the shot image quality is high.

Description

technical field [0001] The present application relates to the technical field of optical imaging, and in particular, to an optical system, an imaging module and a terminal. Background technique [0002] Nowadays, optical systems are widely used in electronic equipment. Optical systems with wide-angle characteristics have become an indispensable part of electronic equipment for shooting high-quality images because of their large field of view, strong sense of spatial depth, and long depth of field. component. [0003] At present, most optical systems with wide-angle characteristics inevitably cause large distortion while achieving wide-angle shooting, especially the fringe field of view of the optical system is most affected by distortion; at the same time, excessive distortion of the fringe field of view will lead to increased aberrations , the image distortion is obvious, and the user experience is reduced. Therefore, how to further improve the imaging quality of the opti...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0015G02B13/0045G02B13/006G02B13/06
Inventor 胡长涛雷娇
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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