Imaging lens group

A lens group and imaging technology, applied in optical components, optics, instruments, etc., can solve problems such as deformation, peripheral imaging blur, and sacrifice of peripheral imaging quality

Active Publication Date: 2017-07-25
NEWMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is known that the 3 to 4-element small lenses mounted on mobile devices, such as mobile phones, tablet computers, and other wearable electronic devices, such as US 7,564,635 and US 7,920,340, cannot present more detailed image quality; while five-element A small lens of the type may have a better image quality, but at a large aperture, such as US 8,605,36

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0054] Please refer to Figure 1A and Figure 1B ,in Figure 1A A schematic diagram showing an imaging lens group according to a first embodiment of the present invention, Figure 1B From left to right are the spherical aberration, astigmatism and distortion curves of the imaging lens set of the first embodiment. Depend on Figure 1A It can be seen that the imaging lens system includes a diaphragm 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, and a fifth lens in sequence from the object side to the image side. 150 . The infrared filter assembly 170 and the imaging surface 180 , wherein the number of lenses with refractive power in the imaging lens group is five. The aperture 100 is disposed between the image-side surface 112 of the first lens 110 and the subject.

[0055] The first lens 110 has a positive refractive power and is made of plastic material. Its object-side surface 111 is convex...

no. 2 example

[0087] Please refer to Figure 2A and Figure 2B ,in Figure 2A A schematic diagram illustrating an imaging lens group according to a second embodiment of the present invention, Figure 2B From left to right are the spherical aberration, astigmatism and distortion curves of the imaging lens set of the second embodiment. Depend on Figure 2A It can be seen that the imaging lens group includes a diaphragm 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, and a fifth lens in sequence from the object side to the image side. 250 , the infrared filter assembly 270 , and the imaging surface 280 , wherein the number of lenses with refractive power in the imaging lens group is five. The aperture 200 is disposed between the image-side surface 212 of the first lens 210 and the subject.

[0088] The first lens 210 has positive refractive power and is made of plastic material. Its object-side surface 211 ...

no. 3 example

[0102] Please refer to Figure 3A and Figure 3B ,in Figure 3A A schematic diagram showing an imaging lens group according to a third embodiment of the present invention, Figure 3B From left to right are the spherical aberration, astigmatism and distortion curves of the imaging lens set of the third embodiment. Depend on Figure 3A It can be seen that the imaging lens group includes a diaphragm 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, and a fifth lens in sequence from the object side to the image side. 350 , an infrared filter assembly 370 , and an imaging surface 380 , wherein there are five lenses with refractive power in the imaging lens group. The aperture 300 is disposed between the image-side surface 312 of the first lens 310 and the subject.

[0103] The first lens 310 has a positive refractive power and is made of plastic material. Its object-side surface 311 is convex near...

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PUM

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Abstract

The invention discloses an imaging lens group which includes from an object side to an image side: a diaphragm; a first lens which has positive refraction power; a second lens which has negative refraction power; a third lens which has refraction power; a fourth lens which has positive refraction power; a fifth lens which has negative refraction power, wherein the second lens, the third lens and the fourth lens have a synthesized focal length of f234, and the fifth lens has a focal length of f5, and the following conditions are met: -1.8<f234/f5<-1.0. The imaging lens group has five lenses, which helps to reduce the generation of spherical aberration and astigmatism by scientific configuration of a certain refraction power.

Description

technical field [0001] The invention relates to an imaging lens set, in particular to a miniaturized five-piece 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] It is known that the 3 to 4-element small lenses mounted on mobile devices, such as mobile phones, tablet computers, and other wearable electronic devices, such as US 7,564,635 and US 7,920,340, cannot present more detailed image quality; while five-element A small lens of the type may have a better image quality, but at a large aperture, such as US 8,605,368, US8,649,113, and TW application numbers 102137030 and 102...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045
Inventor 蔡斐欣赖淑姿
Owner NEWMAX TECH
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