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Five-chiped imaging lens group

A lens group, five-element technology, applied in the field of five-element imaging lens group, can solve the problems of unsatisfactory photographic lens modules, reduced pixel area of ​​photosensitive elements, etc.

Inactive Publication Date: 2016-01-27
NEWMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Five-chiped imaging lens group
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  • Five-chiped imaging lens group

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0075] Please refer to Figure 1A and Figure 1B ,in Figure 1A A schematic diagram showing a five-piece imaging lens set according to the first embodiment of the present invention, Figure 1B From left to right are the spherical aberration, astigmatism and distortion curves of the five-element imaging lens set of the first embodiment. Depend on Figure 1A It can be seen that the five-piece imaging lens set sequentially includes a diaphragm 100, a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, and a fifth lens 150 from the object side to the image side. , an infrared filter element 160 and an imaging surface 170 .

[0076] The first lens 110 has a positive refractive power and is made of plastic material. Its object-side surface 111 is convex near the optical axis 180, and its image-side surface 112 is convex near the optical axis 180. The object-side surface 111 and the image-side Surfaces 112 are all aspherical.

[0077] The second lens 120 has a ...

no. 2 example

[0105] Please refer to Figure 2A and Figure 2B ,in Figure 2A A schematic diagram showing a five-piece imaging lens set according to the second embodiment of the present invention, Figure 2B From left to right are the spherical aberration, astigmatism and distortion curves of the five-element imaging lens set of the second embodiment. Depend on Figure 2A It can be seen that the five-piece imaging lens set sequentially includes a diaphragm 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, and a fifth lens 250 from the object side to the image side. , an infrared filter element 260 and an imaging surface 270 .

[0106] The first lens 210 has a positive refractive power and is made of plastic material. Its object-side surface 211 is convex near the optical axis 280, and its image-side surface 212 is convex near the optical axis 280. The object-side surface 211 and the image-side Surfaces 212 are all aspherical.

[0107] The second lens 220 h...

no. 3 example

[0132] Please refer to Figure 3A and Figure 3B ,in Figure 3A A schematic diagram showing a five-piece imaging lens set 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 five-element imaging lens set of the third embodiment. Depend on Figure 3A It can be seen that the five-piece imaging lens set sequentially includes a diaphragm 300, a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, and a fifth lens 350 from the object side to the image side. , an infrared filter element 360 and an imaging surface 370 .

[0133] The first lens 310 has a positive refractive power and is made of plastic material. Its object-side surface 311 is convex near the optical axis 380, and its image-side surface 312 is convex near the optical axis 380. The object-side surface 311 and the image-side Surfaces 312 are all aspherical.

[0134] The second lens 320 has a...

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Abstract

The invention discloses a five-chiped imaging lens group comprising an aperture, a first lens with positive refractive power, a second lens with negative refractive power, a third lens, a fourth lens with positive refractive power and a fifth lens with negative refractive power which are arranged from an object side to an image side in turn. The surface of the image side of the first lens is a convex surface, and at least one of the surface of the object side of the first lens and the surface of the image side is an aspheric surface. The surface of the object side of the second lens is a convex surface, and at least one of the surface of the object side of the second lens and the surface of the image side is an aspheric surface. The surface of the image side of the third lens is a concave surface, and at least one of the surface of the object side of the third lens and the surface of the image side is an aspheric surface. The surface of the object side of the fourth lens is a convex surface, and at least one of the surface of the object side of the fourth lens and the surface of the image side is an aspheric surface. The surface of the object side of the fifth lens is a concave surface, and at least one of the surface of the object side of the fifth lens and the surface of the image side is an aspheric surface. Therefore, the five-chiped imaging lens group can be applied to a high-pixel mobile phone camera without oversized total length of the camera lens.

Description

technical field [0001] The invention relates to an imaging lens set, in particular to a five-piece imaging lens set. Background technique [0002] High-quality small photographic lenses are the standard equipment of current portable electronic products, and the photosensitive elements of general photographic lenses are nothing more than photocoupled devices (ChargeCoupledDevice, CCD) or complementary metal oxide semiconductors (ComplementaryMetal-OxideSemiconductor, CMOS). ) two, due to the advancement of semiconductor process technology, the pixel area of ​​the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing into the high-pixel field. Therefore, the requirements for imaging quality are also increasing. [0003] Traditional miniaturized photographic lenses mounted on portable electronic products mostly adopt a four-piece lens structure. The pixel area is gradually shrinking, and with the continuous improvement of system imag...

Claims

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Application Information

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IPC IPC(8): G02B13/18G02B13/00G02B13/06
Inventor 蔡斐欣赖淑姿
Owner NEWMAX TECH
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