CN103364922A - Portable electronic device and optical imaging lens thereof - Google Patents

Portable electronic device and optical imaging lens thereof Download PDF

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Publication number
CN103364922A
CN103364922A CN2012100919750A CN201210091975A CN103364922A CN 103364922 A CN103364922 A CN 103364922A CN 2012100919750 A CN2012100919750 A CN 2012100919750A CN 201210091975 A CN201210091975 A CN 201210091975A CN 103364922 A CN103364922 A CN 103364922A
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China
Prior art keywords
lens
towards
near zone
curved surface
optical imaging
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Chinese (zh)
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张国文
李柏彻
许圣伟
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Genius Electronic Optical Xiamen Co Ltd
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Genius Electronic Optical Xiamen Co Ltd
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Priority to CN2012100919750A priority Critical patent/CN103364922A/en
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Abstract

The invention provides a portable electronic device and an optical imaging lens thereof. The optical imaging lens sequentially comprises five lenses from an object side to an image side. The length of the lens is shortened under the condition of maintaining excellent optical performance and system performance through controlling the characteristics such as the concave and convex curve arrangement of the five lenses, the center thickness of the lenses on an optical axis, an air interval between two lenses on the optical axis and the like, and enabling the center thickness T2 of the second lens on the optical axis and the sum Gaa of all air intervals on the optical axis between the first lens and the fifth lens are controlled to fulfill relational expressions that 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40.

Description

Portable electronic devices and its optical imaging lens
[technical field]
The present invention is relevant with its optical imaging lens with a kind of portable electronic devices, and especially relevant with its optical imaging lens with the portable electronic devices of using five chip lens.
[background technology]
In recent years, popularizing so that camera module is flourish of the portable electronic devices such as mobile phone and digital camera, slim light and handyization of mobile phone and digital camera also allows the miniaturization demand of camera module more and more high, along with photosensitive coupling component (Charge Coupled Device, CCD) or complementary matal-oxide semiconductor assembly (Complementary Metal-Oxide Semiconductor, CMOS) technical progress and size are dwindled, the optical imaging lens that is loaded in the camera module also needs reduced volume, takes part into account but the favorable optical performance of optical imaging lens also is necessity.
U.S. Patent Publication No. 20100253829, U.S. Patent Publication No. 2011013069, U.S. Patent Publication No. 20110249346, U.S. Patent Publication No. 20100254029, United States Patent (USP) notification number 7826151, United States Patent (USP) notification number 7864454, United States Patent (USP) notification number 7911711, United States Patent (USP) notification number 8072695, Taiwan patent announcement M368072, Taiwan patent announcement M369460 and Taiwan patent announcement M369459 all disclose the optical imaging lens of five chip lens arrangements, the lens length of above-mentioned application case has shortening trend, but still have the part lens length long, for example the first embodiment lens length of Taiwan patent announcement M368072 is about 5.61mm, the trend of the compact design of unfavorable portable electronic devices.
Therefore the trend of portable electronic devices is to heal compact, how effectively to shorten lens length and becomes one of problem that present industrial community endeavours to research and develop.The disclosed optical lens of aforementioned each patent all faces become the again problem of shorteningization of the size that is subject to its length and limits portable electronic devices, in view of this, it is shorter and keep simultaneously the optical imaging lens of favorable optical performance to need at present the research and development lens length badly.
[summary of the invention]
One of the present invention purpose ties up to provides a kind of portable electronic devices and its optical imaging lens, through the concave-convex curved surface arrangement of each lens of control, along characteristics such as airspaces between the center of lens thickness on the optical axis and two eyeglasses, and keeping favorable optical performance, as: improve resolution, and keep under the condition of system performance, shorten lens length.
According to the present invention, provide a kind of optical imaging lens, from the thing side to sequentially comprising as side: a first lens, one second lens, one the 3rd lens, one the 4th lens, and one the 5th lens.First lens has positive refractive index, and comprises a convex surface towards the thing side.The second lens have a negative refractive index, and comprise a concave surface towards the picture side.The 3rd lens comprise one day to the curved surface of thing side and a curved surface towards the picture side, comprise that towards the curved surface of thing side one is positioned at the concave surface section of circumference near zone, and comprise that towards the curved surface as side one is positioned at the convex surface part of circumference near zone.The 4th lens comprise that one day is to the convex surface of picture side, and the 5th lens comprise that one day is to curved surface and the curved surface towards the picture side of thing side, curved surface towards the thing side comprises that one is positioned at the convex surface part of optical axis near zone, comprises that towards the curved surface as side one is positioned at the concave surface section of optical axis near zone.The eyeglass that integral body has refractive index only only has five lens, and wherein, one of second lens are T2 along the center of lens thickness on the optical axis, and all summations along the airspace on the optical axis between first lens to the five lens are G Aa, its grade satisfies following relational expression:
＜T2＜0.50 0.20 (mm); And
0.27＜(T2/G aa)＜0.40。
According to one of the present invention embodiment, can additionally control other along the center of lens thickness on the optical axis and/or along the relevance of the ratio of the center of lens thickness on the optical axis and airspace summation, as: wherein an example is that all summations along the airspace on the optical axis between T3 and first lens to the five lens are G for one of control the 3rd lens along the center of lens thickness on the optical axis AaBetween relevance more satisfy following relational expression:
0.30＜(T3/G aa)＜0.45；
Another example more satisfies following relational expression for control T3:
0.20＜T3＜0.60(mm)；
An example is control T2 and G again AaMore satisfy following relational expression:
＜T2＜0.47 0.21 (mm); And
0.28＜(T2/G aa)＜0.40；
Another example is T3 and G AaMore satisfy following relational expression:
＜T3＜0.57 0.25 (mm); And
0.31＜(T3/G aa)＜0.45。
Aforementioned listed exemplary qualified relation also optionally merges and is applied in the present invention's the embodiment, is not limited to this.
Each lens of the present invention such as: aforementioned first lens, the second lens, the 3rd lens, the 4th lens, and the 5th lens, are preferably the plastic lens with the ejection formation making, and the thickness of lens can affect degree of difficulty and the cost of making.For instance: when the second lens along the center of lens thickness T 2 on the optical axis during less than lower limit 0.2 (mm), then the second lenses center is narrow, can cause the plastic material of the state that dissolves to make degree of difficulty in finished product, the making by mould surpasses now eyeglass manufacture craft level and so that cost of manufacture improves, does not meet the demand of production.Therefore, the limit boundary value is to decide according to now manufacture craft level under the limited range of aforementioned T2 and T3.On the other hand, because aforementioned first lens, the second lens, the 3rd lens, the 4th lens, and the thickness of the 5th lens can affect the lens length of optical imaging lens, for instance: when the second lens surpass higher limit 0.5 (mm) along the center of lens thickness T 2 on the optical axis, the second lenses can be blocked up, so that the entire length of optical imaging lens can be oversize, and can't meet the compact demand of now optical lens requirement, so the limit boundary value is to determine according to the preferred length of optical imaging lens on the limited range of T2 and T3.
According to one of the present invention embodiment, an aperture can additionally be set, the light-inletting quantity size that enters system with adjustment, for instance, aperture optionally be arranged between thing side and the first lens or first lens and the second lens between, so be not limited to this.
According to one of the present invention embodiment, can go out for single lens or popularity ground thin section's structure and/or the optical activitys in the wrong such as concave-convex curved surface arrangement of other more lens for a plurality of lens additional designs, to strengthen the control to system performance and/or resolution, as: for the second lens, design a curved surface towards the thing side, this curved surface towards the thing side comprises that one is positioned at a convex surface part of circumference near zone, so is not limited to this.A wherein example that designs for a plurality of lens to popularity is: the design first lens has positive refractive index, and comprise a convex surface towards the thing side, the second lens have negative refractive index, and comprise one towards the curved surface of thing side and a concave surface towards the picture side, the 3rd lens comprise that one day is to curved surface and the curved surface towards the picture side of thing side, curved surface towards the thing side comprises that a convex surface part and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, and comprise that towards the curved surface as side a concave surface section and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 4th lens have positive refractive index, and comprise one towards the concave surface of thing side and a convex surface towards the picture side, and the 5th lens have negative refractive index, and comprise one towards the curved surface of thing side and a curved surface towards the picture side, curved surface towards the thing side comprises that a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, and comprises that towards the curved surface as side a concave surface section and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone; Another example is: the design first lens has positive refractive index, and comprise one towards the convex surface of thing side and a concave surface towards the picture side, the second lens have negative refractive index, and comprise one towards the curved surface of thing side and a concave surface towards the picture side, the second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 3rd lens comprise that one day is to curved surface and the curved surface towards the picture side of thing side, curved surface towards the thing side comprises that a concave surface section and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, and comprise that towards the curved surface as side one is positioned at the convex surface part of circumference near zone, the 4th lens have positive refractive index, and comprise one towards the concave surface of thing side and a convex surface towards the picture side, and the 5th lens, has negative refractive index, and comprise one towards the curved surface of thing side and a curved surface towards the picture side, curved surface towards the thing side comprises that a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, and comprises that towards the curved surface as side a concave surface section and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone.Similarly, the example that designs for a plurality of lens to popularity also is not limited to this.
In addition, the present invention also can further go out other thin section of more lens structure for single lens or popularity ground for a plurality of Lens Designs again, bend optical activity and/or cooperate the setting position of aperture to change, to cooperate different demands that the optical imaging lens of good optical property is provided, for instance, take the aforementioned example of enumerating the former as the basis, can change again and following four examples: first case comprises a convex surface towards the picture side for the design first lens, the second lens comprise that towards the curved surface of thing side a concave surface section and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between thing side and the first lens; Second case comprises a convex surface towards the picture side for the design first lens, the second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 3rd lens have negative refractive index, and an aperture is arranged between thing side and the first lens; The 3rd example comprises a concave surface towards the picture side for the design first lens, the second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between first lens and the second lens; The 4th example comprises a concave surface towards the picture side for the design first lens, the second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between thing side and the first lens.Similarly, take the latter of the aforementioned example of enumerating as the basis, also can following three examples for changing again: first case has positive refractive index for design the 3rd lens, and the 3rd lens comprise that towards the curved surface as side one is positioned at the convex surface part of optical axis near zone; Second case is that the 3rd lens have negative refractive index, and the 3rd lens comprise that towards the curved surface as side one is positioned at the concave surface section of optical axis near zone; The 3rd example is that the 3rd lens have negative refractive index, and the 3rd lens comprise that towards the curved surface as side one is positioned at the convex surface part of optical axis near zone.It is noted that, also can be under the nothing situation of conflict in characteristics such as this listed exemplary thin section structure and/or optical activitys in the wrong, optionally merging is applied in the present invention's the embodiment, is not limited to this.
The present invention can provide a kind of portable electronic devices according to aforementioned various optical imaging lens, comprising: a casing and an optical imaging lens group are arranged in this casing.The optical imaging lens group comprises a lens barrel, aforementioned arbitrary optical imaging lens, a modular substrate unit (module housing unit), an and image sensor.The five chip lens that integral body has refractive index are to be arranged in the lens barrel, and the modular substrate unit is used for for the optical imaging lens setting, and image sensor is arranged at the picture side of optical imaging lens.
According to one of the present invention embodiment, the aforementioned modules base unit can be including but not limited to an image sensor pedestal and an automatic focusing module, the image sensor pedestal is for the stabilized image sensor, and automatic focusing module comprises a microscope base for the optical imaging lens setting, with the mobile focusing of control optical imaging lens.
By learning in above-mentioned, the present invention's portable electronic devices and its optical imaging lens, see through control at least one along the center of lens thickness on the optical axis between five lens all along the ratio of the summation of the airspace on the optical axis in a preset range, and the design of optical activity is arranged and/or bent to the concave-convex curved surface that merges each lens, keeping favorable optical performance, and effectively shorten lens length.
[description of drawings]
Fig. 1 shows the cross-sectional view according to five chip lens of the optical imaging lens of the first embodiment of the present invention.
Fig. 2 shows another cross-sectional view according to one of the optical imaging lens of the first embodiment of the present invention lens.
Fig. 3 shows the detailed optical data according to each eyeglass of the first embodiment optical imaging lens of the present invention.
Fig. 4 shows the aspherical surface data according to the optical imaging lens of the first embodiment of the present invention.
Fig. 5 shows according to the longitudinal spherical aberration of the optical imaging lens of the first embodiment of the present invention and every aberration diagram synoptic diagram.
Fig. 6 shows the cross-sectional view according to five chip lens of the optical imaging lens of the second embodiment of the present invention.
Fig. 7 shows the detailed optical data according to each eyeglass of the optical imaging lens of the second embodiment of the present invention.
Fig. 8 shows the aspherical surface data according to the optical imaging lens of the second embodiment of the present invention.
Fig. 9 shows according to the longitudinal spherical aberration of the second embodiment optical imaging lens of the present invention and every aberration diagram synoptic diagram.
Figure 10 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 3rd embodiment.
Figure 11 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 3rd embodiment.
Figure 12 shows the aspherical surface data according to the optical imaging lens of the present invention's the 3rd embodiment.
Figure 13 shows according to the longitudinal spherical aberration of the present invention's the 3rd embodiment optical imaging lens and every aberration diagram synoptic diagram.
Figure 14 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 4th embodiment.
Figure 15 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 4th embodiment.
Figure 16 shows the aspherical surface data according to the optical imaging lens of the present invention's the 4th embodiment.
Figure 17 shows according to the longitudinal spherical aberration of the present invention's the 4th embodiment optical imaging lens and every aberration diagram synoptic diagram.
Figure 18 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 5th embodiment.
Figure 19 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 5th embodiment.
Figure 20 shows the aspherical surface data according to the optical imaging lens of the present invention's the 5th embodiment.
Figure 21 shows according to the longitudinal spherical aberration of the present invention's the 5th embodiment optical imaging lens and every aberration diagram synoptic diagram.
Figure 22 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 6th embodiment.
Figure 23 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 6th embodiment.
Figure 24 shows the aspherical surface data according to the optical imaging lens of the present invention's the 6th embodiment.
Figure 25 shows according to the longitudinal spherical aberration of the present invention's the 6th embodiment optical imaging lens and every aberration diagram synoptic diagram.
Figure 26 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 7th embodiment.
Figure 27 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 7th embodiment.
Figure 28 shows the aspherical surface data according to the optical imaging lens of the present invention's the 7th embodiment.
Figure 29 shows according to the longitudinal spherical aberration of the present invention's the 7th embodiment optical imaging lens and every aberration diagram synoptic diagram.
T2, T3, T2/G according to above seven embodiment of the present invention that Figure 30 is shown AaAnd T3/G AaThe comparison sheet of value.
Figure 31 shows according to one of the portable electronic devices of one of the present invention embodiment structural representation.
Figure 32 shows according to one of portable electronic devices of one of the present invention embodiment structure enlarged diagram.
Figure 33 shows another structure enlarged diagram according to the portable electronic devices of one of the present invention embodiment.
[embodiment]
For further specifying each embodiment, the present invention provides graphic.This a little graphic be a part for disclosure of the present invention, it mainly is that embodiment is described, and can cooperate the associated description of instructions to explain the operation principles of embodiment.Cooperation is with reference to these contents, and this area has knows embodiment that the knowledgeable will be understood that other is possible and the present invention's advantage usually.Assembly among the figure and not drawn on scale, and similarly element numbers is commonly used to assembly like the representation class.
The present invention's optical imaging lens, be by from the thing side to one of sequentially arrange as side first lens, one second lens, one the 3rd lens, one the 4th lens, and one the 5th lens consisted of, the eyeglass that integral body has refractive index only only has five lens.The detail characteristic that sees through each lens of design is as follows: first lens has positive refractive index, and comprises a convex surface towards the thing side; The second lens have a negative refractive index, and comprise a concave surface towards the picture side; The 3rd lens comprise one day to the curved surface of thing side and a curved surface towards the picture side, comprise that towards the curved surface of thing side one is positioned at the concave surface section of circumference near zone, and comprise that towards the curved surface as side one is positioned at the convex surface part of circumference near zone; The 4th lens comprise that one day is to the convex surface of picture side; The 5th lens comprise that one day is to curved surface and the curved surface towards the picture side of thing side, curved surface towards the thing side comprises that one is positioned at the convex surface part of optical axis near zone, comprise that towards the curved surface as side one is positioned at the concave surface section of optical axis near zone, and control one of second lens along the center of lens thickness T 2 on the optical axis, and all summation G along the airspace on the optical axis between first lens to the five lens AaSatisfy following relational expression:
0.20＜T2＜0.50 (mm) relational expression (1); And
0.27＜(T2/G Aa)＜0.40 relational expression (2);
Or
0.21＜T2＜0.47 (mm) relational expression (1 '); And
0.28＜(T2/G Aa)＜0.40 relational expression (2 ').
And can provide good optical property, and shorten lens length.
In one of the present invention embodiment, also can additionally control other along the lens thickness on the optical axis and/or along the relevance of the ratio of the lens thickness on the optical axis and airspace summation, as: wherein an example for one of control the 3rd lens along the center of lens thickness T 3 on the optical axis and/or control T3 and G AaBetween relevance more satisfy following relational expression:
0.20＜T3＜0.60 (mm) relational expression (3); And/or
0.30＜(T3/G Aa)＜0.45 relational expression (4);
Or
0.25＜T3＜0.57 (mm) relational expression (3 '); And/or
0.31＜(T3/G Aa)＜0.45 relational expression (4 ').
Because each lens of the present invention, such as: aforementioned first lens, the second lens, the 3rd lens, the 4th lens, and the 5th lens, be preferably the plastic lens with the ejection formation making, the thickness of lens can affect degree of difficulty and the cost of making.For instance: when the second lens along the center of lens thickness T 2 on the optical axis during less than lower limit 0.2 (mm), then the second lenses center is narrow, can cause the state that dissolves plastic material can't by mould make degree of difficulty in finished product, the making surpass now eyeglass manufacture craft level and so that cost of manufacture improve, do not meet the demand of production, so according to now the aforementioned T2 of manufacture craft level set and the limited range lower limit boundary value of T3.On the other hand, because aforementioned first lens, the second lens, the 3rd lens, the 4th lens, and the thickness of the 5th lens can affect the lens length of optical imaging lens, for instance: when the second lens surpass higher limit 0.5 (mm) along the center of lens thickness T 2 on the optical axis, the second lenses can be blocked up, so that the entire length of optical imaging lens can be oversize, and can't meet the compact demand of now optical lens requirement, so the limit boundary value is to determine according to the preferred length of optical imaging lens on the limited range of T2 and T3.When enforcement is of the present invention, except above-mentioned relevance, also can go out for single lens or popularity ground thin section's structure and/or the optical activitys in the wrong such as concave-convex curved surface arrangement of other more lens for a plurality of lens additional designs, to strengthen the control to system performance and/or resolution, such as following a plurality of embodiment.It is noted that, also can be under the nothing situation of conflict in characteristics such as this listed exemplary thin section structure and/or optical activitys in the wrong, optionally merging is applied in the middle of other embodiment of the present invention, is not limited to this.
In order to illustrate that the present invention can shorten lens length really when good optical property is provided, below provide a plurality of embodiment with and detailed optical data.At first please in the lump referring to figs. 1 to Fig. 5, wherein Fig. 1 shows the cross-sectional view according to five chip lens of the optical imaging lens of the first embodiment of the present invention, Fig. 2 shows another cross-sectional view according to one of the optical imaging lens of the first embodiment of the present invention lens, Fig. 3 shows the detailed optical data according to the optical imaging lens of the first embodiment of the present invention, Fig. 4 shows the aspherical surface data according to each eyeglass of the first embodiment optical imaging lens of the present invention, and Fig. 5 shows according to the longitudinal spherical aberration of the optical imaging lens of the first embodiment of the present invention and every aberration diagram synoptic diagram.As shown in fig. 1, the optical imaging lens of present embodiment one of places between object side and the first lens 110 aperture (Aperture Stop) 100, one first lens 110, one second lens 120, one the 3rd lens 130, one the 4th lens 140 to sequentially comprising as side A2, reaches one the 5th lens 150 from thing side A1.The imaging surface 170 of one optical filtering part 160 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 160 exemplarily is an infrared filter (IR Cut Filter) at this, be located between the picture N-Side surf 152 and an imaging surface 170 of the 5th lens 150, optical filtering part 160 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 170.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 110 has positive refractive index, and it is that plastic material consists of, and has a convex surface 111 towards the thing side, and a convex surface 112 towards the picture side, and convex surface 111 and convex surface 112 are all aspheric surface.
The second lens 120 have negative refractive index, it is that plastic material consists of, and has a curved surface 121 towards the thing side, curved surface 121 has one in the concave surface section 1211 of optical axis near zone, and concave surface section 1212 at the circumference near zone, and the second lens 120 have a concave surface 122 towards the picture side, and curved surface 121 and concave surface 122 are all aspheric surface.
The 3rd lens 130 have positive refractive index, it is that plastic material consists of, and has a curved surface 131 towards the thing side, curved surface 131 has one in the convex surface part 1311 of optical axis near zone, and the concave surface section 1312 at the circumference near zone, and the 3rd lens 130 have one towards the picture side curved surface 132, curved surface 132 has one in the concave surface section 1321 of optical axis near zone, and the convex surface part 1322 at the circumference near zone, curved surface 131,132 is all aspheric surface.
The 4th lens 140 have positive refractive index, and it is that plastic material consists of, and have a concave surface 141 towards the thing side, and have a convex surface 142 towards the picture side, and concave surface 141 and convex surface 142 are all aspheric surface.
The 5th lens 150 have negative refractive index, it is that plastic material consists of, and has a curved surface 151 towards the thing side, curved surface 151 has one in the convex surface part 1511 of optical axis near zone, and convex surface part 1512 at the circumference near zone, and the 5th lens 150 have a curved surface 152 towards the picture side, curved surface 152 has one in the concave surface section 1521 of optical axis near zone, and the convex surface part 1522 at the circumference near zone, this curved surface 151 and curved surface 152 are all aspheric sea-gull face (Gull wing surface).
In the present embodiment, system's design lens, optical filtering part 160, and all there is the airspace between the imaging surface 170 of image sensor, as: there is airspace d1 between first lens 110 and the second lens 120, there is airspace d2 between the second lens 120 and the 3rd lens 130, there is airspace d3 between the 3rd lens 130 and the 4th lens 140, there is airspace d4 between the 4th lens 140 and the 5th lens 150, there is airspace d5 between the 5th lens 150 and the optical filtering part 160, and there is airspace d6 between the imaging surface 170 of optical filtering part 160 and image sensor, yet in other embodiments, also can not have aforementioned wherein arbitrary airspace, as: be designed to the surface profile of two relative lens corresponding each other, and can fit each other, to eliminate airspace therebetween.Hence one can see that, and the summation of airspace d1, d2, d3, d4 is G Aa
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Fig. 3, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.31000 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.28999, really satisfy relational expression (2), (2 ');
T3=0.34207 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.31999, really satisfy relational expression (4), (4 ');
Be 3.75436 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
It is noted that at this, in the present invention, show for the sake of simplicity the structure of each lens, only be shown as the part of passing through as light, be the effective diameter part, for instance, take first lens 110 as example, as shown in Figure 1, comprise the convex surface 111 towards the thing side, and towards the convex surface 112 as side.Yet, when implementing each lens of present embodiment, optionally additionally comprise a non-effective path portion.Equally take first lens 110 as example, please refer to Fig. 2, it shows outside the effective diameter part of first lens 110, also comprise a non-effective path portion, be exemplified as the thing side toward one of extension extension 113 at this, be assembled in the optical imaging lens for first lens 110, light can not pass through extension 113, and the structure of non-effective path portion and profile need not be limited to this.
The curved surface 131,132 of the curved surface 121 of the convex surface 111 of first lens 110 and convex surface 112, the second lens 120 and concave surface 122, the 3rd lens 130, the concave surface 141 of the 4th lens 140 and convex surface 142, and curved surface 151 and the curved surface 152 of the 5th lens 150, amounting to ten aspheric surfaces all is according to following aspheric curve formula definition:
Z ( Y ) = Y 2 R / ( 1 + 1 - ( 1 + K ) Y 2 R 2 ) + &Sigma; i = 1 n a 2 i &times; Y 2 i
Wherein:
R represents the radius-of-curvature of lens surface;
Z represents the degree of depth (being the point of Y apart from optical axis on the aspheric surface, itself and the tangent plane that is tangential on summit on the aspheric surface optical axis, vertical range between the two) of aspheric surface;
Y represents point on the non-spherical surface and the vertical range of optical axis;
K is conical surface coefficient (Conic Constant);
a iIt is i rank asphericity coefficient; The parameter detailed data of each aspheric surface is please in the lump with reference to figure 4.
On the other hand, in the middle of Fig. 5, can find out, the optical imaging lens of present embodiment longitudinal spherical aberration (longitudinal spherical aberration) (a), the astigmatic image error (astigmatism aberration) of the sagitta of arc (sagittal) direction (b), astigmatic image error (c) or the performance (d) of distortion aberration (distortion aberration) of meridian (tangential) direction be all very good.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump with reference to figure 6 to Fig. 9, wherein Fig. 6 shows the cross-sectional view according to five chip lens of the optical imaging lens of the second embodiment of the present invention, Fig. 7 shows the detailed optical data according to the optical imaging lens of the second embodiment of the present invention, Fig. 8 shows the aspherical surface data according to each eyeglass of the optical imaging lens of the second embodiment of the present invention, and Fig. 9 shows according to the longitudinal spherical aberration of the second embodiment optical imaging lens of the present invention and every aberration diagram synoptic diagram.As shown in Figure 6, the optical imaging lens of present embodiment one of places between object side and the first lens 210 aperture 200, a first lens 210, one second lens 220, one the 3rd lens 230, one the 4th lens 240 to sequentially comprising as side A2, reaches one the 5th lens 250 from thing side A1.The imaging surface 270 of one optical filtering part 260 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 260 exemplarily is an infrared filter at this, be located between the picture N-Side surf 252 and an imaging surface 270 of the 5th lens 250, optical filtering part 260 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 270.
The main difference of the second embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 220 is different, and the center of lens thickness T 3 of the 3rd lens 230 is also different, so the airspace summation G of 250 on first lens 210 to the 5th lens AaAlso can be along with difference.About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Fig. 7, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.25763 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.29805, really satisfy relational expression (2), (2 ');
T3=0.27660 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.32000, really satisfy relational expression (4), (4 ');
Be 3.68615 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 210 has positive refractive index, it is that plastic material consists of, and has a convex surface 211 towards the thing side, and a convex surface 212 towards the picture side, convex surface 211 and convex surface 212 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to figure 8.
The second lens 220 have negative refractive index, it is that plastic material consists of, and has a curved surface 221 towards the thing side, curved surface 221 has one in the convex surface part 2211 of optical axis near zone, and convex surface part 2212 at the circumference near zone, and the second lens 220 have a concave surface 222 towards the picture side, and curved surface 221 and concave surface 222 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to figure 8.
The 3rd lens 230 have negative refractive index, it is that plastic material consists of, and has a curved surface 231 towards the thing side, curved surface 231 has one in the convex surface part 2311 of optical axis near zone, and concave surface section 2312 at the circumference near zone, and the 3rd lens 230 have a curved surface 232 towards the picture side, curved surface 232 has one in the concave surface section 2321 of optical axis near zone, and convex surface part 2322 at the circumference near zone, curved surface 231,232 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to figure 8.
The 4th lens 240 have positive refractive index, it is that plastic material consists of, and has a concave surface 241 towards the thing side, and have one towards the convex surface 242 as side, concave surface 241 and convex surface 242 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to figure 8.
The 5th lens 250 have negative refractive index, it is that plastic material consists of, and has a curved surface 251 towards the thing side, curved surface 251 has one in the convex surface part 2511 of optical axis near zone, and convex surface part 2512 at the circumference near zone, and the 5th lens 250 have a curved surface 252 towards the picture side, curved surface 252 has one in the concave surface section 2521 of optical axis near zone, and convex surface part 2522 at the circumference near zone, curved surface 251,252 are all aspheric sea-gull face, be that the detailed data of aspheric surface parameter is please in the lump with reference to figure 8 with the definition of aspheric curve formula.
In the present embodiment, with the first embodiment similarly, system design lens 210,220,230,240,250, optical filtering part 260, and the imaging surface 270 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
On the other hand, can find out that in the middle of Fig. 9 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump with reference to figures 10 to Figure 13, wherein Figure 10 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 3rd embodiment, Figure 11 shows the detailed optical data according to the present invention's the 3rd embodiment, Figure 12 shows the aspherical surface data according to each eyeglass of the optical imaging lens of the present invention's the 3rd embodiment, and Figure 13 shows according to the longitudinal spherical aberration of the present invention's the 3rd embodiment optical imaging lens and every aberration diagram synoptic diagram.As shown in Figure 10, the optical imaging lens of present embodiment is from thing side A1 to sequentially comprising a first lens 310 as side A2, one of place between first lens 310 and one second lens 320 aperture 300, the second lens 320, one the 3rd lens 330, one the 4th lens 340, reaching one the 5th lens 350.The imaging surface 370 of one optical filtering part 360 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 360 exemplarily is an infrared filter at this, be located between the picture N-Side surf 352 and an imaging surface 370 of the 5th lens 350, optical filtering part 360 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 370.
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Figure 11, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.25285 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.31316, really satisfy relational expression (2), (2 ');
T3=0.27452 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.34000, really satisfy relational expression (4), (4 ');
Be 3.81589 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 310 has positive refractive index, it is that plastic material consists of, and has a convex surface 311 towards the thing side, and a concave surface 312 towards the picture side, convex surface 311 and concave surface 312 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 12.
Aperture 300 places between first lens 310 and the second lens 320.
The second lens 320 have negative refractive index, it is that plastic material consists of, and has a curved surface 321 towards the thing side, curved surface 321 has one in the convex surface part 3211 of optical axis near zone, and convex surface part 3212 at the circumference near zone, and the second lens 320 have a concave surface 322 towards the picture side, and curved surface 321 and concave surface 322 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 12.
The 3rd lens 330 have positive refractive index, it is that plastic material consists of, and has a curved surface 331 towards the thing side, curved surface 331 has one in the convex surface part 3311 of optical axis near zone, and concave surface section 3312 at the circumference near zone, and the 3rd lens 330 have a curved surface 332 towards the picture side, curved surface 332 has one in the concave surface section 3321 of optical axis near zone, and convex surface part 3322 at the circumference near zone, curved surface 331,332 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 12.
The 4th lens 340 have positive refractive index, it is that plastic material consists of, and has a concave surface 341 towards the thing side, and have one towards the convex surface 342 as side, concave surface 341 and convex surface 342 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 12.
The 5th lens 350 have negative refractive index, it is that plastic material consists of, and has a curved surface 351 towards the thing side, curved surface 351 has one in the convex surface part 3511 of optical axis near zone, and convex surface part 3512 at the circumference near zone, and the 5th lens have a curved surface 352 towards the picture side, curved surface 352 has one in the concave surface section 3521 of optical axis near zone, and convex surface part 3522 at the circumference near zone, curved surface 351,352 are all aspheric sea-gull face, be the aspheric surface with the definition of aspheric curve formula, the detailed data of aspheric surface parameter is please in the lump with reference to Figure 12.
In the present embodiment, for the usefulness that compares, with the first embodiment similarly, system design lens 310,320,330,340,350, optical filtering part 360, and the imaging surface 370 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
The main difference of the 3rd embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 320 is different, and the center of lens thickness T 3 of the 3rd lens 330 is also different, so the airspace summation G of 350 on first lens 310 to the 5th lens AaAlso can be along with difference.Secondly, the aperture 300 of present embodiment is to be arranged between first lens 310 and the second lens 320, and that aperture 100 was set before first lens 110 is different from the first embodiment.
On the other hand, can find out that in the middle of Figure 13 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump with reference to figs. 14 to Figure 17, wherein Figure 14 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 4th embodiment, Figure 15 shows the detailed optical data according to the optical imaging lens of the present invention's the 4th embodiment, Figure 16 shows the aspherical surface data according to each eyeglass of the optical imaging lens of the present invention's the 4th embodiment, and Figure 17 shows according to the longitudinal spherical aberration of the present invention's the 4th embodiment optical imaging lens and every aberration diagram synoptic diagram.As shown in Figure 14, the optical imaging lens of present embodiment one of places between object side and the first lens 410 aperture 400, a first lens 410, the second lens 420, one the 3rd lens 430, one the 4th lens 440 to sequentially comprising as side A2, reaches one the 5th lens 450 from thing side A1.The imaging surface 470 of one optical filtering part 460 and an image sensor all is arranged at the picture of optical imaging lens and surveys A2.Optical filtering part 460 exemplarily is an infrared filter at this, be located between the picture N-Side surf 452 and an imaging surface 470 of the 5th lens 450, optical filtering part 460 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 470.
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Figure 15, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.45000 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.39001, really satisfy relational expression (2), (2 ');
T3=0.36920 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.31998, really satisfy relational expression (4), (4 ');
Be 3.71940 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 410 has positive refractive index, it is that plastic material consists of, and has a convex surface 411 towards the thing side, and a concave surface 412 towards the picture side, convex surface 411 and concave surface 412 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 16.
The second lens 420 have negative refractive index, it is that plastic material consists of, and has a curved surface 421 towards the thing side, curved surface 421 has one in the convex surface part 4211 of optical axis near zone, and concave surface section 4212 at the circumference near zone, and the second lens 420 have a concave surface 422 towards the picture side, and curved surface 421 and concave surface 422 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 16.
The 3rd lens 430 have positive refractive index, it is that plastic material consists of, and has a curved surface 431 towards the thing side, curved surface 431 has one in the convex surface part 4311 of optical axis near zone, and concave surface section 4312 at the circumference near zone, and the 3rd lens 430 have a curved surface 432 towards the picture side, curved surface 432 has one in the concave surface section 4321 of optical axis near zone, and convex surface part 4322 at the circumference near zone, curved surface 431,432 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 16.
The 4th lens 440 have positive refractive index, it is that plastic material consists of, and has a concave surface 441 towards the thing side, and have one towards the convex surface 442 as side, concave surface 441 and convex surface 442 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 16.
The 5th lens 450 have negative refractive index, it is that plastic material consists of, and has a curved surface 451 towards the thing side, curved surface 451 has one in the convex surface part 4511 of optical axis near zone, and convex surface part 4512 at the circumference near zone, and the 5th lens 450 have a curved surface 452 towards the picture side, curved surface 452 has one in the concave surface section 4521 of optical axis near zone, and convex surface part 4522 at the circumference near zone, curved surface 451,452 are all aspheric sea-gull face, be the aspheric surface with the definition of aspheric curve formula, the detailed data of aspheric surface parameter is please in the lump with reference to Figure 16.
In the present embodiment, for the usefulness that compares, with the first embodiment similarly, system design lens 410,420,430,440,450, optical filtering part 460, and the imaging surface 470 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
The main difference of the 4th embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 420 is different, and the center of lens thickness T 3 of the 3rd lens 430 is also different, so the airspace summation G of 450 on first lens 410 to the 5th lens AaAlso can be along with difference.
On the other hand, can find out that in the middle of Figure 17 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump referring to figs. 18 to Figure 21, wherein Figure 18 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 5th embodiment, Figure 19 shows the detailed optical data according to the optical imaging lens of the present invention's the 5th embodiment, Figure 20 shows the aspherical surface data according to each eyeglass of the optical imaging lens of the present invention's the 5th embodiment, and Figure 21 shows according to the longitudinal spherical aberration of the present invention's the 5th embodiment optical imaging lens and every aberration diagram synoptic diagram.As shown in Figure 18, the optical imaging lens of present embodiment one of places between object side and the first lens 510 aperture 500, a first lens 510, the second lens 520, one the 3rd lens 530, one the 4th lens 540 to sequentially comprising as side A2, reaches one the 5th lens 550 from thing side A1.The imaging surface 570 of one optical filtering part 560 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 560 exemplarily is an infrared filter at this, be located between the picture N-Side surf 552 and an imaging surface 570 of the 5th lens 550, optical filtering part 560 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 570.
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Figure 19, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.29660 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.29001, really satisfy relational expression (2), (2 ');
T3=0.45000 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.44001, really satisfy relational expression (4), (4 ');
Be 3.70690 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 510 has positive refractive index, it is that plastic material consists of, and has a convex surface 511 towards the thing side, and a concave surface 512 towards the picture side, convex surface 511 and concave surface 512 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 20.
The second lens 520 have negative refractive index, it is that plastic material consists of, and has a curved surface 521 towards the thing side, curved surface 521 has one in the convex surface part 5211 of optical axis near zone, and convex surface part 5212 at the circumference near zone, and the second lens 520 have a concave surface 522 towards the picture side, and curved surface 521 and concave surface 522 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 20.
The 3rd lens 530 have positive refractive index, it is that plastic material consists of, and has a curved surface 531 towards the thing side, curved surface 531 has one in the concave surface section 5311 of optical axis near zone, and concave surface section 5312 at the circumference near zone, and the 3rd lens 530 have a curved surface 532 towards the picture side, curved surface 532 has one in the convex surface part 5321 of optical axis near zone, and convex surface part 5322 at the circumference near zone, curved surface 531,532 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 20.
The 4th lens 540 have positive refractive index, it is that plastic material consists of, and has a concave surface 541 towards the thing side, and have one towards the convex surface 542 as side, concave surface 541 and convex surface 542 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 20.
The 5th lens 550 have negative refractive index, it is that plastic material consists of, and has a curved surface 551 towards the thing side, curved surface 551 has one in the convex surface part 5511 of optical axis near zone, and convex surface part 5512 at the circumference near zone, and the 5th lens 550 have a curved surface 552 towards the picture side, curved surface 552 has one in the concave surface section 5521 of optical axis near zone, and convex surface part 5522 at the circumference near zone, curved surface 551,552 are all aspheric sea-gull face, be the aspheric surface with the definition of aspheric curve formula, the detailed data of aspheric surface parameter is please in the lump with reference to Figure 20.
In the present embodiment, for the usefulness that compares, with the first embodiment similarly, system design lens 510,520,530,540,550, optical filtering part 560, and the imaging surface 570 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
The main difference of the 5th embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 520 is different, and the center of lens thickness T 3 of the 3rd lens 530 is also different, so the airspace summation G of 550 on first lens 510 to the 5th lens AaAlso can be along with difference.
On the other hand, can find out that in the middle of Figure 21 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump with reference to Figure 22 to Figure 25, wherein Figure 22 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 6th embodiment, Figure 23 shows the detailed optical data according to the optical imaging lens of the present invention's the 6th embodiment, Figure 24 shows the aspherical surface data according to each eyeglass of the optical imaging lens of the present invention's the 6th embodiment, and Figure 25 shows according to the longitudinal spherical aberration of the present invention's the 6th embodiment optical imaging lens and every aberration diagram synoptic diagram.As shown in Figure 22, the optical imaging lens of present embodiment one of places between object side and the first lens 610 aperture 600, a first lens 610, the second lens 620, one the 3rd lens 630, one the 4th lens 640 to sequentially comprising as side A2, reaches one the 5th lens 650 from thing side A1.The imaging surface 670 of one optical filtering part 660 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 660 exemplarily is an infrared filter at this, be located between the picture N-Side surf 652 and an imaging surface 670 of the 5th lens 650, optical filtering part 660 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 670.
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Figure 23, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.36250 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.29000, really satisfy relational expression (2), (2 ');
T3=0.55000 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.44000, really satisfy relational expression (4), (4 ');
Be 3.84120 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 610 has positive refractive index, it is that plastic material consists of, and has a convex surface 611 towards the thing side, and a concave surface 612 towards the picture side, convex surface 611 and 612 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 24.
The second lens 620 have negative refractive index, it is that plastic material consists of, and has a curved surface 621 towards the thing side, curved surface 621 has one in the convex surface part 6211 of optical axis near zone, and convex surface part 6212 at the circumference near zone, and the second lens 620 have a concave surface 622 towards the picture side, and curved surface 621 and concave surface 622 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 24.
The 3rd lens 630 have negative refractive index, it is that plastic material consists of, and has a curved surface 631 towards the thing side, curved surface 631 has one in the concave surface section 6311 of optical axis near zone, and concave surface section 6312 at the circumference near zone, and the 3rd lens 630 have a curved surface 632 towards the picture side, curved surface 632 has one in the concave surface section 6321 of optical axis near zone, and convex surface part 6322 at the circumference near zone, curved surface 631,632 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 24.
The 4th lens 640 have positive refractive index, it is that plastic material consists of, and has a concave surface 641 towards the thing side, and have one towards the convex surface 642 as side, concave surface 641 and convex surface 642 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 24.
The 5th lens 650 have negative refractive index, it is that plastic material consists of, and has a curved surface 651 towards the thing side, curved surface 651 has one in the convex surface part 6511 of optical axis near zone, and convex surface part 6512 at the circumference near zone, and the 5th lens 650 have a curved surface 652 towards the picture side, curved surface 652 has one in the concave surface section 6521 of optical axis near zone, and convex surface part 6522 at the circumference near zone, curved surface 651,652 are all aspheric sea-gull face, be the aspheric surface with the definition of aspheric curve formula, the detailed data of aspheric surface parameter is please in the lump with reference to Figure 24.
In the present embodiment, for the usefulness that compares, with the first embodiment similarly, system design lens 610,620,630,640,650, optical filtering part 660, and the imaging surface 670 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
The main difference of the 6th embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 620 is different, and the center of lens thickness T 3 of the 3rd lens 630 is also different, so the airspace summation G of 650 on first lens 610 to the 5th lens AaAlso can be along with difference.
On the other hand, can find out that in the middle of Figure 25 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
In addition please in the lump with reference to Figure 26 to Figure 29, wherein Figure 26 shows the cross-sectional view according to five chip lens of the optical imaging lens of the present invention's the 7th embodiment, Figure 27 shows the detailed optical data according to each eyeglass of the optical imaging lens of the present invention's the 7th embodiment, Figure 28 shows the aspherical surface data according to the optical imaging lens of the present invention's the 7th embodiment, and Figure 29 shows according to the longitudinal spherical aberration of the present invention's the 7th embodiment optical imaging lens and every aberration diagram synoptic diagram.
As shown in Figure 26, the optical imaging lens of present embodiment one of places between object side and the first lens 710 aperture 700, a first lens 710, the second lens 720, one the 3rd lens 730, one the 4th lens 740 to sequentially comprising as side A2, reaches one the 5th lens 750 from thing side A1.The imaging surface 770 of one optical filtering part 760 and an image sensor all is arranged at the picture side A2 of optical imaging lens.Optical filtering part 760 exemplarily is an infrared filter at this, be located between the picture N-Side surf 752 and an imaging surface 770 of the 5th lens 750, optical filtering part 760 will filter out through the light of optical imaging lens the wavelength of specific band, as: filter out the infrared ray wave band, the wavelength of the infrared ray wave band that human eye can't see can not imaged on the imaging surface 770.
About each optical characteristics of each lens in the optical imaging lens of present embodiment and the thickness of each airspace, please refer to Figure 27, wherein T2, T3, T2/G AaAnd T3/G AaValue be respectively:
T2=0.21999 (mm) satisfies relational expression (1), (1 ') really;
T2/G Aa=0.28974, really satisfy relational expression (2), (2 ');
T3=0.26816 (mm) satisfies relational expression (3), (3 ') really;
T3/G Aa=0.35319, really satisfy relational expression (4), (4 ');
Be 3.59439 (mm) from the thickness of first lens thing side to the five saturating image side, really shorten the lens length of optical imaging lens.
The thin section structure of each lens of optical imaging lens is as follows:
First lens 710 has positive refractive index, it is that plastic material consists of, and has a convex surface 711 towards the thing side, and a concave surface 712 towards the picture side, convex surface 711 and 712 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 28.
The second lens 720 have negative refractive index, it is that plastic material consists of, and has a curved surface 721 towards the thing side, curved surface 621 has one in the convex surface part 7211 of optical axis near zone, and convex surface part 7212 at the circumference near zone, and the second lens 720 have a concave surface 722 towards the picture side, and curved surface 721 and concave surface 722 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 28.
The 3rd lens 730 have negative refractive index, it is that plastic material consists of, and has a curved surface 731 towards the thing side, curved surface 731 has one in the concave surface section 7311 of optical axis near zone, and concave surface section 7312 at the circumference near zone, and the 3rd lens 730 have a curved surface 732 towards the picture side, curved surface 632 has one in the convex surface part 7321 of optical axis near zone, and convex surface part 7322 at the circumference near zone, curved surface 731,732 is all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 28.
The 4th lens 740 have positive refractive index, it is that plastic material consists of, and has a concave surface 741 towards the thing side, and have one towards the convex surface 742 as side, concave surface 741 and convex surface 742 are all the aspheric surface with the definition of aspheric curve formula, and the detailed data of aspheric surface parameter is please in the lump with reference to Figure 28.
The 5th lens 750 have negative refractive index, it is that plastic material consists of, and has a curved surface 751 towards the thing side, curved surface 751 has one in the convex surface part 7511 of optical axis near zone, and convex surface part 7512 at the circumference near zone, and the 5th lens 750 have a curved surface 752 towards the picture side, curved surface 752 has one in the concave surface section 7521 of optical axis near zone, and convex surface part 7522 at the circumference near zone, curved surface 751,752 are all aspheric sea-gull face, be the aspheric surface with the definition of aspheric curve formula, the detailed data of aspheric surface parameter is please in the lump with reference to Figure 28.
In the present embodiment, for the usefulness that compares, with the first embodiment similarly, system design lens 710,720,730,740,750, optical filtering part 760, and the imaging surface 770 of image sensor between all have the airspace, airspace d1, d2, d3, d4, d5, d6 that its corresponding position can indicate with reference to the first embodiment, and the summation of airspace d1, d2, d3, d4 is G Aa
The main difference of the 7th embodiment and the first embodiment is that the center of lens thickness T 2 of the second lens 720 is different, and the center of lens thickness T 3 of the 3rd lens 730 is also different, so the airspace summation G of 750 on first lens 710 to the 5th lens AaAlso can be along with difference.
On the other hand, can find out that in the middle of Figure 29 the optical imaging lens of present embodiment is all very good in the performance of the astigmatic image error (b) of longitudinal spherical aberration (a), sagitta of arc direction, the astigmatic image error (c) of meridian direction or the aberration (d) that distorts.Therefore, by learning in above-mentioned, the optical imaging lens of present embodiment can be kept favorable optical performance really, and effectively shortens lens length.
Other please refer to T2, T3, the T2/G of shown above seven embodiment of Figure 30 AaAnd T3/G AaValue can find out that the present invention's optical imaging lens can satisfy aforementioned relational expression (1) (2) (3) (4) (1 ') (2 ') (3 ') (4 ') really.
Other please refer to Figure 31 and Figure 32, and wherein Figure 31 shows one of portable electronic devices 1 according to one of the present invention embodiment structural representation, and Figure 32 shows the structure enlarged diagram of portable electronic devices shown in Figure 31 1.Only be explanation portable electronic devices 1 as an example of mobile phone example at this, but the pattern of portable electronic devices 1 is not as limit.As shown in FIG., portable electronic devices 1 comprises that a casing 10 and an optical imaging lens group 20 are arranged in the casing 10.Its interior optical imaging lens group 20 of casing 10 protections can be random appearance, material, need not limit at this.Optical imaging lens group 20 comprises a lens barrel 21, an optical imaging lens 22, a modular substrate unit (module housing unit) 23, reaches the picture side that an image sensor 171 is arranged at optical imaging lens 22.Have it is noted that at 3, at first, optical imaging lens 22 used herein can be the arbitrary optical imaging lens according to the present invention, such as: arbitrary optical imaging lens of previous embodiment or be that other is according to the present invention's optical imaging lens, yet narrate for the sake of simplicity present embodiment, exemplarily select the optical imaging lens of aforementioned the first embodiment at this, yet be not limited to this, when selecting other optical imaging lens 22, also can omit the structure of optical filtering part 160; Secondly, casing 10, lens barrel 21 and/or modular substrate unit 23 can be single component or a plurality of assembly assembles, and need not be defined in this; The 3rd; be that the employed image sensor 171 of present embodiment is to adopt interconnection system chip package (Chip on Board on the plate; COB) packaged type directly is connected on the substrate 172; with traditional die size encapsulation (Chip Scale Package; the difference of packaged type CSP) is; the interconnection system chip package need not use cover glass (cover glass) on the plate; therefore in optical imaging lens 22, need to before image sensor 171, cover glass be set, so not as limit.The five chip lens 110,120,130,140,150 that integral body has refractive index exemplarily are to exist respectively the mode of an airspace to be arranged in the lens barrel 21 between relative two lens.Modular substrate unit 23 is used for arranging thereon for optical imaging lens 22, a better image sensor pedestal 233 and the automatic focusing module 234 of comprising, image sensor pedestal 233 is to be fixed on the substrate 172, and automatic focusing module 234 comprises a microscope base 2341 for optical imaging lens 22 settings, this microscope base 2341 can move forward and backward along an optical axis, mobile focusing with control optical imaging lens 22, for instance, before according to the difference of object distance optical imaging lens 22 being carried out, rear movement is until image can be focused to the imaging surface 170 of image sensor 171.Because the length of optical imaging lens 22 is 3.75436 (mm) only, therefore can the size design ground of portable electronic devices 1 is more compact, and good optical property and image quality still can be provided.By this, make present embodiment except having the economic benefit that reduces casing raw material consumption, can also satisfy compact product design trend and consumption demand.
Other please refer to Figure 33, and it shows according to one of the portable electronic devices 2 of another embodiment of the present invention structural representation.Omit casing, only display optical imaging lens group 20 at this.As shown in FIG., portable electronic devices 1 Main Differences of portable electronic devices 2 and last embodiment is the structure of modular substrate unit 24.Modular substrate unit 24 comprises an image sensor pedestal 243 and an automatic focusing module 244, automatic focusing module 244 exemplarily is a voice coil motor (Voice Coil Motor, generally referred to as VCM), comprise a microscope base 2441, a magnet 2442 and a coil 2443.The magnetic that voice coil motor produces by magnet 2442 and coil 2443 and front and back fine setting start microscope base 2441 can move forward and backward along an optical axis this microscope base 2441, to carry out the focusing of optical imaging lens 22.Because the length of optical imaging lens 22 is shorter, therefore can the size design ground of portable electronic devices 1 is more compact, and good optical property and image quality still can be provided.By this, make present embodiment except having the economic benefit that reduces casing raw material consumption, can also satisfy compact product design trend and consumption demand.
By learning in above-mentioned, the present invention's portable electronic devices and its optical imaging lens, see through at least one center of lens thickness of control between five lens all along the ratio of the summation of the airspace on the optical axis in a preset range, and merge the design of thin section structure and/or the optical activity in the wrong of each lens, keeping favorable optical performance, and effectively shorten lens length.
More than narration is according to a plurality of different embodiment of the present invention, and wherein various features can single or different combinations be implemented.Therefore, the exposure of embodiment of the present invention should be regardless of limit the present invention in the embodiment that discloses for illustrating the specific embodiment of principle of the present invention.Further it had before been narrated and accompanying drawing only is the usefulness of the present invention's demonstration, not limited by its limit.The variation of other assembly or combination be possibility all, and is not contrary in the present invention's spirit and scope.
[primary clustering symbol description]
1,2 portable electronic devices
10 casings
20 optical imaging lens groups, 21 lens barrels
22 optical imaging lens, 23,24 modular substrate unit
100,200,300,400,500,600,700 apertures
110,210,310,410,510,610,710 first lens
120,220,320,420,520,620,720 second lens
130,230,330,430,530,630,730 the 3rd lens
140,240,340,440,540,640,740 the 4th lens
150,250,350,450,650,750 the 5th lens
160,260,360,460,560,660,760 optical filtering parts
170,270,370,470,570,670,770 imaging surfaces
111 towards the convex surface 112 of the thing side convex surface towards the picture side
113 extensions
121 towards the curved surface 122 of the thing side concave surface towards the picture side
131 towards the curved surface 132 of the thing side curved surface towards the picture side
141 towards the concave surface 142 of the thing side convex surface towards the picture side
151 towards the curved surface 152 of the thing side curved surface towards the picture side
171 image sensors, 172 substrates
211 towards the convex surface 212 of the thing side convex surface towards the picture side
221 towards the curved surface 222 of the thing side concave surface towards the picture side
231 towards the curved surface 232 of the thing side curved surface towards the picture side
233,243 image sensor pedestals, 234,244 automatic focusing modules
241 towards the concave surface 242 of the thing side convex surface towards the picture side
251 towards the curved surface 252 of the thing side curved surface towards the picture side
311 towards the convex surface 312 of the thing side concave surface towards the picture side
321 towards the curved surface 322 of the thing side concave surface towards the picture side
331 towards the curved surface 332 of the thing side curved surface towards the picture side
341 towards the concave surface 342 of the thing side convex surface towards the picture side
351 towards the curved surface 352 of the thing side curved surface towards the picture side
411 towards the convex surface 412 of the thing side concave surface towards the picture side
421 towards the curved surface 422 of the thing side concave surface towards the picture side
431 towards the curved surface 432 of the thing side curved surface towards the picture side
441 towards the concave surface 442 of the thing side convex surface towards the picture side
451 towards the curved surface 452 of the thing side curved surface towards the picture side
511 towards the convex surface 512 of the thing side concave surface towards the picture side
521 towards the curved surface 522 of the thing side concave surface towards the picture side
531 towards the curved surface 532 of the thing side curved surface towards the picture side
541 towards the concave surface 542 of the thing side convex surface towards the picture side
551 towards the curved surface 552 of the thing side curved surface towards the picture side
611 towards the convex surface 612 of the thing side concave surface towards the picture side
621 towards the curved surface 622 of the thing side concave surface towards the picture side
631 towards the curved surface 632 of the thing side curved surface towards the picture side
641 towards the concave surface 642 of the thing side convex surface towards the picture side
651 towards the curved surface 652 of the thing side curved surface towards the picture side
711 towards the convex surface 712 of the thing side concave surface towards the picture side
721 towards the curved surface 722 of the thing side concave surface towards the picture side
731 towards the curved surface 732 of the thing side curved surface towards the picture side
741 towards the concave surface 742 of the thing side convex surface towards the picture side
751 towards the curved surface 752 of the thing side curved surface towards the picture side
1212 circumference near zone concave surface sections of 1211 optical axis near zone concave surface sections
1311 optical axis near zone convex surface part, 1312 circumference near zone concave surface sections
1321 optical axis near zone concave surface sections, 1322 circumference near zone convex surface part
1511 optical axis near zone convex surface part, 1512 circumference near zone convex surface part
1521 optical axis near zone concave surface sections, 1522 circumference near zone convex surface part
2211 optical axis near zone convex surface part, 2212 circumference near zone convex surface part
2311 optical axis near zone convex surface part, 2312 circumference near zone concave surface sections
2321 optical axis near zone concave surface sections, 2322 circumference near zone convex surface part
2341,2441 microscope bases, 2442 magnet
2443 coils
2511 optical axis near zone convex surface part, 2512 circumference near zone convex surface part
2521 optical axis near zone concave surface sections, 2522 circumference near zone convex surface part
3211 optical axis near zone convex surface part, 3212 circumference near zone convex surface part
3311 optical axis near zone convex surface part, 3312 circumference near zone concave surface sections
3321 optical axis near zone concave surface sections, 3322 circumference near zone convex surface part
3511 optical axis near zone convex surface part, 3512 circumference near zone convex surface part
3521 optical axis near zone concave surface sections, 3522 circumference near zone convex surface part
4211 optical axis near zone convex surface part, 4212 circumference near zone concave surface sections
4311 optical axis near zone convex surface part, 4312 circumference near zone concave surface sections
4321 optical axis near zone concave surface sections, 4322 circumference near zone convex surface part
4511 optical axis near zone convex surface part, 4512 circumference near zone convex surface part
4521 optical axis near zone concave surface sections, 4522 circumference near zone convex surface part
5211 optical axis near zone convex surface part, 5212 circumference near zone convex surface part
5312 circumference near zone concave surface sections of 5311 optical axis near zone concave surface sections
5321 optical axis near zone convex surface part, 5322 circumference near zone convex surface part
5511 optical axis near zone convex surface part, 5512 circumference near zone convex surface part
5521 optical axis near zone concave surface sections, 5522 circumference near zone convex surface part
6211 optical axis near zone convex surface part, 6212 circumference near zone convex surface part
6312 circumference near zone concave surface sections of 6311 optical axis near zone concave surface sections
6321 optical axis near zone concave surface sections, 6322 circumference near zone convex surface part
6511 optical axis near zone convex surface part, 6512 circumference near zone convex surface part
6521 optical axis near zone concave surface sections, 6522 circumference near zone convex surface part
7211 optical axis near zone convex surface part, 7212 circumference near zone convex surface part
7312 circumference near zone concave surface sections of 7311 optical axis near zone concave surface sections
7321 optical axis near zone convex surface part, 7322 circumference near zone convex surface part
7511 optical axis near zone convex surface part, 7512 circumference near zone convex surface part
7521 optical axis near zone concave surface sections, 7522 circumference near zone convex surface part
D1, d2, d3, d4, d5, d6 airspace
A2 is as side for A1 thing side

Claims (19)

1. an optical imaging lens is characterized in that, from the thing side to sequentially comprising as side:
One first lens has positive refractive index, and comprises a convex surface towards the thing side;
One second lens have a negative refractive index, and comprise a concave surface towards the picture side;
One the 3rd lens comprise curved surface and the curved surface towards the picture side towards the thing side, should comprise that one was positioned at the concave surface section of circumference near zone towards the curved surface of thing side, and should comprise that one was positioned at the convex surface part of circumference near zone towards the curved surface as side;
One the 4th lens comprise a convex surface towards the picture side;
One the 5th lens comprise curved surface and the curved surface towards the picture side towards the thing side, should comprise that one was positioned at the convex surface part of optical axis near zone towards the curved surface of thing side, and should comprise that one was positioned at the concave surface section of optical axis near zone towards the curved surface as side;
The eyeglass that integral body has refractive index only only has five lens, and wherein, one of these second lens are T2 along the center of lens thickness on the optical axis, and this first lens to all summations along the airspace on the optical axis between the 5th lens are G Aa, its grade satisfies following relational expression:
＜T2＜0.50 0.20 (mm); And
0.27＜(T2/G aa)＜0.40。
2. optical imaging lens as claimed in claim 1 is characterized in that, one of the 3rd lens are T3 along the center of lens thickness on the optical axis, and this first lens to all summations along the airspace on the optical axis between the 5th lens are G Aa, satisfy following relational expression:
0.30＜(T3/G aa)＜0.45。
3. optical imaging lens as claimed in claim 2 is characterized in that, one of the 3rd lens are T3 along the center of lens thickness on the optical axis, satisfy following relational expression:
0.20＜T3＜0.60(mm)。
4. optical imaging lens as claimed in claim 3 is characterized in that, from the thing side to sequentially comprising as side:
This first lens has positive refractive index, and comprises a convex surface towards the thing side;
These second lens have negative refractive index, and comprise curved surface and the concave surface towards the picture side towards the thing side;
The 3rd lens, comprise curved surface and the curved surface towards the picture side towards the thing side, should comprise that a convex surface part and that is positioned at the optical axis near zone was positioned at the concave surface section of circumference near zone towards the curved surface of thing side, and should comprise that a concave surface section and that is positioned at the optical axis near zone was positioned at the convex surface part of circumference near zone towards the curved surface as side;
The 4th lens have positive refractive index, and comprise concave surface and the convex surface towards the picture side towards the thing side;
The 5th lens, has negative refractive index, and comprise one towards the curved surface of thing side and a curved surface towards the picture side, should comprise that a convex surface part and that is positioned at the optical axis near zone was positioned at the convex surface part of circumference near zone towards the curved surface of thing side, and should comprise that a concave surface section and that is positioned at the optical axis near zone was positioned at the convex surface part of circumference near zone towards the curved surface as side.
5. optical imaging lens as claimed in claim 4, it is characterized in that, this first lens comprises a convex surface towards the picture side, these second lens comprise that towards the curved surface of thing side a concave surface section and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between thing side and this first lens.
6. optical imaging lens as claimed in claim 4, wherein, this first lens comprises a convex surface towards the picture side, these second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 3rd lens have negative refractive index, and an aperture is arranged between thing side and this first lens.
7. optical imaging lens as claimed in claim 4, it is characterized in that, this first lens comprises a concave surface towards the picture side, these second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between this first lens and this second lens.
8. optical imaging lens as claimed in claim 4, it is characterized in that, this first lens comprises a concave surface towards the picture side, these second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the concave surface section of circumference near zone, the 3rd lens have positive refractive index, and an aperture is arranged between thing side and this first lens.
9. optical imaging lens as claimed in claim 3 is characterized in that, more includes an aperture, and this optical imaging lens is from the thing side to sequentially comprising as side:
This aperture;
This first lens has positive refractive index, and comprises convex surface and the concave surface towards the picture side towards the thing side;
These second lens have negative refractive index, and comprise curved surface and the concave surface towards the picture side towards the thing side, and these second lens comprise that towards the curved surface of thing side a convex surface part and that is positioned at the optical axis near zone is positioned at the convex surface part of circumference near zone;
The 3rd lens, comprise curved surface and the curved surface towards the picture side towards the thing side, should comprise that a concave surface section and that is positioned at the optical axis near zone was positioned at the concave surface section of circumference near zone towards the curved surface of thing side, and should comprise that one was positioned at the convex surface part of circumference near zone towards the curved surface as side;
The 4th lens have positive refractive index, and comprise concave surface and the convex surface towards the picture side towards the thing side; And
The 5th lens, has negative refractive index, and comprise one towards the curved surface of thing side and a curved surface towards the picture side, should comprise that a convex surface part and that is positioned at the optical axis near zone was positioned at the convex surface part of circumference near zone towards the curved surface of thing side, and should comprise that a concave surface section and that is positioned at the optical axis near zone was positioned at the convex surface part of circumference near zone towards the curved surface as side.
10. optical imaging lens as claimed in claim 9 is characterized in that, the 3rd lens have positive refractive index, and the 3rd lens comprise that towards the curved surface as side one is positioned at the convex surface part of optical axis near zone.
11. optical imaging lens as claimed in claim 9 is characterized in that, the 3rd lens have negative refractive index, and the 3rd lens comprise that towards the curved surface as side one is positioned at the concave surface section of optical axis near zone.
12. optical imaging lens as claimed in claim 9 is characterized in that, the 3rd lens have negative refractive index, and the 3rd lens comprise that towards the curved surface as side one is positioned at the convex surface part of optical axis near zone.
13. optical imaging lens as claimed in claim 1 is characterized in that, one of the 3rd lens are T3 along the center of lens thickness on the optical axis, satisfy following relational expression:
0.20＜T3＜0.60(mm)。
14. optical imaging lens as claimed in claim 1 is characterized in that, these second lens comprise one day to the curved surface of thing side, should comprise that one was positioned at a convex surface part of circumference near zone towards the curved surface of thing side.
15. optical imaging lens as claimed in claim 1 is characterized in that, an aperture is arranged between thing side and this first lens.
16. optical imaging lens as claimed in claim 1 is characterized in that, T2 and G AaMore satisfy following relational expression:
＜T2＜0.47 0.21 (mm); And
0.28＜(T2/G aa)＜0.40。
17. optical imaging lens as claimed in claim 2 is characterized in that, T3 and G AaMore satisfy following relational expression:
＜T3＜0.57 0.25 (mm); And
0.31＜(T3/G aa)＜0.45。
18. a portable electronic devices is characterized in that, comprising:
One casing; And
One optical imaging lens group is arranged in this casing, comprising:
One lens barrel;
Such as the 1st to the 17th described arbitrary optical imaging lens of claim,
These five chips lens that integral body has refractive index are arranged in this lens barrel;
One modular substrate unit (module housing unit) is used for arranging for this optical imaging lens; And
One image sensor is arranged at the picture side of this optical imaging lens.
19. portable electronic devices as claimed in claim 18, it is characterized in that, this modular substrate unit more comprises an image sensor pedestal and an automatic focusing module, this image sensor is arranged on the substrate, and this image sensor pedestal is to be fixed on the substrate, and this automatic focusing module comprises a microscope base for this optical imaging lens setting, and this microscope base moves forward and backward along an optical axis, to control the mobile focusing of this optical imaging lens.
CN2012100919750A 2012-03-30 2012-03-30 Portable electronic device and optical imaging lens thereof Pending CN103364922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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