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Optical image capturing lens assembly

An optical image and lens group technology, applied in optics, optical components, instruments, etc., can solve the problems of general products without structure, inconvenience, and inability to meet, and achieve the effect of easy production and assembly, good imaging quality, and shortening the total length.

Active Publication Date: 2012-12-12
LARGAN PRECISION
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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, as shown in US Patent No. 7,365,920, mostly use a four-piece lens structure. However, due to smart phones (Smart Phone) and PDA (Personal Digital Assistant) The popularity of high-end mobile devices has led to the rapid increase in pixel and imaging quality of miniaturized photographic lenses. The existing four-element lens group will not be able to meet the requirements of higher-end photographic lens modules. The trend of high performance and thinning is constantly developing, so there is an urgent need for an optical image capture lens group suitable for thin, light and portable electronic products, with good imaging quality and without making the total length of the lens too long
[0004] This shows that the lens group of above-mentioned existing miniaturized photographic lens obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved
In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0152] see figure 1 and figure 2 (a)- figure 2 (c), where figure 1 is a schematic diagram of an optical image capturing lens group according to Embodiment 1 of the present invention, figure 2 (a)- figure 2 (c) From left to right are figure 1 The spherical aberration, astigmatism and distortion curves of the optical image capture lens group. Depend on figure 1 It can be seen that the optical image capturing lens group of Embodiment 1 includes the aperture 100, the first lens 110, the second lens 120, the third lens 130, the fourth lens 140, the fifth lens 150, the Six lenses 160 , an IR filter (IR Filter) 180 and an imaging surface 170 .

[0153] To further illustrate, the material of the first lens 110 is plastic, which has positive refractive power. Both the object-side surface 111 and the image-side surface 112 of the first lens 110 are convex and aspherical.

[0154] The material of the second lens 120 is plastic, which has negative refractive power. The objec...

Embodiment 2

[0186] see image 3 and Figure 4 (a)- Figure 4 (c), where image 3 is a schematic diagram of an optical image capturing lens group according to Embodiment 2 of the present invention, Figure 4 (a)- Figure 4 (c) From left to right are image 3 The spherical aberration, astigmatism and distortion curves of the optical image capture lens group. Depend on image 3 It can be seen that the optical image capture lens group of Embodiment 2 includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, and a first lens from the object side to the image side. Six lenses 260 , an IR filter (IR Filter) 280 and an imaging surface 270 .

[0187] To further illustrate, the material of the first lens 210 is plastic, which has positive refractive power. Both the object-side surface 211 and the image-side surface 212 of the first lens 210 are convex and aspherical.

[0188] The material of the second lens 220 is plastic, which h...

Embodiment 3

[0203] see Figure 5 and Figure 6 (a)- Figure 6 (c), where Figure 5 is a schematic diagram of an optical image capturing lens group according to Embodiment 3 of the present invention, Figure 6 (a)- Figure 6 (c) From left to right are Figure 5 The spherical aberration, astigmatism and distortion curves of the optical image capture lens group. Depend on Figure 5 It can be seen that the optical image capturing lens group of Embodiment 3 includes an aperture 300, a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, and a first lens from the object side to the image side. Six lenses 360 , an IR filter (IR Filter) 380 and an imaging surface 370 .

[0204] To further illustrate, the material of the first lens 310 is plastic, which has positive refractive power. Both the object-side surface 311 and the image-side surface 312 of the first lens 310 are convex and aspherical.

[0205] The material of the second lens 320 is plastic, w...

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Abstract

An optical image capturing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The object-side surface and the image-side surface of the fifth lens element are aspheric and at least one of the object-side surface and the image-side surface has at least one inflection point formed thereon. The sixth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, wherein the object-side surface and the image-side surface of the sixth lens element are aspheric. Based on the above lens configuration method, the total track length of the optical image capturing lens assembly can be reduced effectively and the image quality can be improved.

Description

technical field [0001] The invention relates to an optical image capturing lens group, in particular to a miniaturized optical image capturing lens group applied to electronic products. Background technique [0002] In recent years, with the rise of portable electronic products with photographic functions, the demand for miniaturized photographic lenses has increased day by day, and the photosensitive element of general photographic lenses is nothing more than a charge coupled device (CCD) or complementary There are two types of Complementary Metal-Oxide Semiconductor Sensor (CMOS Sensor), and with the advancement of semiconductor technology, the pixel size of the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing towards the high-pixel field. Therefore, for The requirements for image quality are also increasing day by day. [0003] Traditional miniaturized photographic lenses mounted on portable electronic products, as shown i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/22G02B1/04G02B1/00
CPCG02B13/0045G02B9/62
Inventor 黄歆璇蔡宗翰
Owner LARGAN PRECISION
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