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Four-piece optical imaging lens group

An optical imaging and lens group technology, which is applied in optics, optical components, instruments, etc., can solve the problems of shrinking pixel area of ​​photosensitive components and four-piece lens group cannot meet the needs of photographic lens modules, etc.

Active Publication Date: 2021-06-25
NEWMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The miniaturized photographic lenses that are traditionally mounted on portable electronic products mostly adopt a four-piece lens structure. The pixel area is gradually shrinking, and in the case of continuous improvement of system imaging quality requirements, the existing four-piece lens group will not be able to meet higher-level photographic lens modules

Method used

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  • Four-piece optical imaging lens group
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  • Four-piece optical imaging lens group

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0061] Such as Figure 1A and Figure 1B shown, where Figure 1A A schematic diagram showing a four-piece optical imaging lens set according to the first embodiment of the present invention, Figure 1B From left to right are the field curvature and distortion aberration curves of the four-piece optical imaging lens set of the first embodiment. Depend on Figure 1A It can be seen that the four-piece optical imaging lens group includes an aperture 100 and an optical group, and the optical group includes a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, The infrared filter assembly 170 and the imaging surface 180, wherein there are four lenses with refractive power in the four-piece optical imaging lens group. The diaphragm 100 is disposed between the object-side surface 111 and the image-side surface 112 of the first lens 110 .

[0062] The first lens 110 has positive refractive power and is made of plastic material. Its object-side surface 111 is conve...

no. 2 example

[0086] Such as Figure 2A and Figure 2B shown, where Figure 2A A schematic diagram showing a four-piece optical imaging lens set according to the second embodiment of the present invention, Figure 2B From left to right are the field curvature and distortion aberration curves of the four-piece optical imaging lens set of the second embodiment. Depend on Figure 2A It can be seen that the four-piece optical imaging lens group includes an aperture 200 and an optical group, and the optical group includes a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, The infrared filter assembly 270 and the imaging surface 280, wherein there are four lenses with refractive power in the four-piece optical imaging lens group. The diaphragm 200 is disposed between the object-side surface 211 and the image-side surface 212 of the first lens 210 .

[0087] The first lens 210 has positive refractive power and is made of plastic material. Its object-side surface 211 nea...

no. 3 example

[0101] Such as Figure 3A and Figure 3B shown, where Figure 3A A schematic diagram showing a four-piece optical imaging lens set according to a third embodiment of the present invention, Figure 3B From left to right are the field curvature and distortion aberration curves of the four-piece optical imaging lens set of the third embodiment. Depend on Figure 3A It can be seen that the four-piece optical imaging lens group includes an aperture 300 and an optical group, and the optical group includes a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, The infrared filter assembly 370 and the imaging surface 380, wherein there are four lenses with refractive power in the four-piece optical imaging lens group. The diaphragm 300 is disposed between the object-side surface 311 and the image-side surface 312 of the first lens 310 .

[0102] The first lens 310 has positive refractive power and is made of plastic material. Its object-side surface 311 is conv...

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Abstract

The invention relates to a four-piece type optical imaging lens group, which sequentially comprises a diaphragm, a first lens, a second lens, a third lens and a fourth lens; the first lens has positive refractive power; the second lens has negative refractive power; the third lens has positive refractive power; the fourth lens has negative refractive power; the combined focal length of the first lens and the second lens is f12, the focal length of the third lens is f3, and the f12 and f3 satisfy the following condition: f12 / f3<1.6. Therefore, the invention provides the four-piece optical imaging lens group which can be applied to a portable electronic product, does not have too long lens total length, and has long focal length, high definition and low lens height; and in addition, the resolving power of the four-piece optical imaging lens group can be obviously improved.

Description

technical field [0001] The invention relates to a four-piece optical imaging lens set, in particular to a miniaturized four-piece optical imaging lens set applied to electronic products. Background technique [0002] High-quality small photographic lenses are standard equipment for various mobile devices, and with the progress of semiconductor manufacturing, the pixel area on the electronic photosensitive component is getting smaller and smaller, which in turn requires more fine-grained resolution of the camera lens power, so that more detailed picture quality can be presented. [0003] The miniaturized photographic lenses that are traditionally mounted on portable electronic products mostly adopt a four-piece lens structure. The pixel area is gradually shrinking, and the requirements for system imaging quality continue to increase, and the existing four-piece lens group will not be able to meet higher-level photographic lens modules. [0004] Therefore, how to develop an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/004
Inventor 吴昆叡
Owner NEWMAX TECH