CN103941380A - Miniature imaging lens - Google Patents
Miniature imaging lens Download PDFInfo
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- CN103941380A CN103941380A CN201410108634.9A CN201410108634A CN103941380A CN 103941380 A CN103941380 A CN 103941380A CN 201410108634 A CN201410108634 A CN 201410108634A CN 103941380 A CN103941380 A CN 103941380A
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Abstract
The invention provides a miniature imaging lens. The miniature imaging lens is characterized by comprising three lens bodies, wherein the first lens body is a positive focal power lens body; the second lens body is a positive focal power lens body with a concave object surface side and a convex image surface side; the third lens body is a negative focal power crescent lens body with a convex object surface side, and the image surface side of the third lens body is provided with at least one inflection point. The miniature imaging lens meets the inequations: 25<V2-V3<45, 1.5<f1/f2<2.5 and 0.55<ImgH/TTL<0.75. According to the miniature imaging lens, the three aspheric lens bodies are adopted, the system length of the lens is effectively reduced, compatibility between field angles and image quality is fully considered, and excellent imaging quality of the lens on the condition of great visual angles is guaranteed; in addition, the miniature imaging lens is low in tolerance sensitivity through reasonable focal power distribution, ensures mass production of products and achieves a good technical effect.
Description
Technical field
The present invention relates to a kind of camera lens of portable small-sized electronic product imaging optical system, relate to specifically a kind of miniature imaging lens.
Background technology
Along with the requirement of the Portable belt of optical lens is more and more higher, the field of digital image is constantly brought forth new ideas, is changed, at image carriers such as mobile phone, camera, notebooks, towards miniaturization, develop at present, for the camera lens of this series products require to there is miniaturization, with great visual angle, large aperture, there is good optical property simultaneously.At present, more the pick-up lens of general three-chip type structure, adopt the second lens and the 3rd lens to be sequentially F system and K system or the second lens and the 3rd lens and be the combination of materials that K is.Adopting the second lens is F system, and the 3rd lens are the combination of materials of K system, can make the spacing between the second lens and the 3rd lens increase, and is unfavorable for camera lens miniaturization; Adopt the second lens and the 3rd lens to be the combination of materials of K system, although can effectively shorten the spacing between the second lens and the 3rd lens, cannot meet large aperture, the requirement of wide-angle.As the patent No. is " JP4688518 ", within open day, is the patent of invention of " 2011.2.25 ", three groups of lens in this camera lens are followed successively by from the object side to the image side: have positive diopter first lens, there are dioptric the second lens and there are negative dioptric the 3rd lens, its second lens and the 3rd lens are sequentially F system and K based material, this structure cannot further be dwindled Lens, is unfavorable for the miniaturization of camera lens.And for example the patent No. is " JP4156961 ", within open day, is the patent of invention of " 2008.07.18 ", three groups of lens in this camera lens are followed successively by from the object side to the image side: have positive diopter first lens, there are the second lens of positive diopter and there are dioptric the 3rd lens, its second lens and the 3rd lens all adopt K based material.Although this system meets the requirement of miniaturization, effectively improved image quality, this structure cannot meet the demand of large aperture and large field angle.
Therefore, be necessary the imaging len that a kind of miniature high pixel is provided, has large field angle characteristic concurrently, can effectively shorten the total length of system, reduce the susceptibility of system, to obtain good image quality.
Summary of the invention
The invention provides a kind of miniature imaging camera lens being formed by three groups of lens, can effectively shorten the total length of system, reduce the susceptibility of system, to obtain good image quality.Its technical scheme is as described below:
A miniature imaging camera lens, comprises three groups of lens, the eyeglass that first lens is positive light coke from the object side to the image side successively; The second lens are the eyeglass that object plane side is recessed, image planes side is protruding of positive light coke; The protruding falcate eyeglass of object plane side that the 3rd lens are negative power, and the image planes side of the 3rd lens has a point of inflexion at least; And described camera lens meets
25<V2-V3<45
Wherein, V2 is the abbe number of the second lens, and V3 is the abbe number of the 3rd lens;
Described camera lens meets
0.55<ImgH/TTL<0.75
Wherein, ImgH is the maximum image height of described lens system on imaging surface; TTL be first lens thing side to lens system the distance of imaging surface on optical axis;
Described camera lens meets
1.5<f1/f2<2.5
Wherein, f1 is the focal length of the 1st lens, and f2 is the focal length of the 2nd lens
Further, described camera lens meets
0.75<tanθ<0.97
Wherein, half of the maximum field of view angle that θ is lens combination;
Further, to have a face at least be aspheric surface to the lens of described camera lens.In addition, between described object and first lens, be provided with diaphragm.Further, first lens is plastic material.
Camera lens for general large field angle, feature due to its field angle and object lens of large relative aperture, size is often long, can cause resolving power to reduce simultaneously, distortion becomes the problems such as large and the increase of chief ray shooting angle, be difficult to reach the requirement of high pixel sensitive chip, and, the ultra-thin camera lens of large field angle and object lens of large relative aperture feature has higher difficulty on design and processes, if adopting the second lens is F system, the 3rd lens are the combination of materials of K system, can make the spacing between the second lens and the 3rd lens increase, and are unfavorable for camera lens miniaturization, if adopt the second lens and the 3rd lens to be the combination of materials of K system, although can effectively shorten the spacing between the second lens and the 3rd lens, but cannot meet large aperture, the requirement of wide-angle, generally, if adopting the second lens is K system, the 3rd lens are the combination of materials of F system, can make system relative exposure reduce, affect the quality of image edge, and, cannot meet the requirement of design, but the present invention is that K is by the second lens, the 3rd lens are the combination of materials of F system, and distribute by above-mentioned rational focal power, the selection of abbe number, structural design between lens, make the present invention improved because of illumination low, the quality problems that the deficiency of shooting edge brightness causes, reduced the susceptibility of system simultaneously, and more effectively shortened the system length of camera lens, taken into full account the property taken into account of field angle and picture element, guaranteed that camera lens has good image quality and obtained good technique effect with great visual angle in the situation that, and guaranteed the mass of product when producing.
Accompanying drawing explanation
Fig. 1 is the structural representation of miniature imaging camera lens embodiment 1 provided by the invention;
Fig. 2 is chromaticity difference diagram (mm) on the axle of embodiment 1;
Fig. 3 is the astigmatism figure (mm) of embodiment 1;
Fig. 4 is the distortion figure (%) of embodiment 1;
Fig. 5 is the ratio chromatism, figure (μ m) of embodiment 1;
Fig. 6 is the structural representation of miniature imaging camera lens embodiment 2 provided by the invention;
Fig. 7 is chromaticity difference diagram (mm) on the axle of embodiment 2;
Fig. 8 is the astigmatism figure (mm) of embodiment 2;
Fig. 9 is the distortion figure (%) of embodiment 2;
Figure 10 is the ratio chromatism, figure (μ m) of embodiment 2;
Figure 11 is the structural representation of miniature imaging camera lens embodiment 3 provided by the invention;
Figure 12 is chromaticity difference diagram (mm) on the axle of embodiment 3;
Figure 13 is the astigmatism figure (mm) of embodiment 3;
Figure 14 is the distortion figure (%) of embodiment 3;
Figure 15 is the ratio chromatism, figure (μ m) of embodiment 3;
Figure 16 is the structural representation of miniature imaging camera lens embodiment 4 provided by the invention;
Figure 17 is chromaticity difference diagram (mm) on the axle of embodiment 4;
Figure 18 is the astigmatism figure (mm) of embodiment 4;
Figure 19 is the distortion figure (%) of embodiment 4;
Figure 20 is the ratio chromatism, figure (μ m) of embodiment 4;
Figure 21 is the structural representation of miniature imaging camera lens embodiment 5 provided by the invention;
Figure 22 is chromaticity difference diagram (mm) on the axle of embodiment 5;
Figure 23 is the astigmatism figure (mm) of embodiment 5;
Figure 24 is the distortion figure (%) of embodiment 5;
Figure 25 is the ratio chromatism, figure (μ m) of embodiment 5;
Figure 26 is the structural representation of miniature imaging camera lens embodiment 6 provided by the invention;
Figure 27 is chromaticity difference diagram (mm) on the axle of embodiment 6;
Figure 28 is the astigmatism figure (mm) of embodiment 6;
Figure 29 is the distortion figure (%) of embodiment 6;
Figure 30 is the ratio chromatism, figure (μ m) of embodiment 6;
Figure 31 is the structural representation of miniature imaging camera lens embodiment 7 provided by the invention;
Figure 32 is chromaticity difference diagram (mm) on the axle of embodiment 7;
Figure 33 is the astigmatism figure (mm) of embodiment 7;
Figure 34 is the distortion figure (%) of embodiment 7;
Figure 35 is the ratio chromatism, figure (μ m) of embodiment 7;
Figure 36 is the structural representation of miniature imaging camera lens embodiment 8 provided by the invention;
Figure 37 is chromaticity difference diagram (mm) on the axle of embodiment 8;
Figure 38 is the astigmatism figure (mm) of embodiment 8;
Figure 39 is the distortion figure (%) of embodiment 8;
Figure 40 is the ratio chromatism, figure (μ m) of embodiment 8;
Figure 41 is the structural representation of miniature imaging camera lens embodiment 9 provided by the invention;
Figure 42 is chromaticity difference diagram (mm) on the axle of embodiment 9;
Figure 43 is the astigmatism figure (mm) of embodiment 9;
Figure 44 is the distortion figure (%) of embodiment 9;
Figure 45 is the ratio chromatism, figure (μ m) of embodiment 9.
Embodiment
The invention provides a kind of miniature imaging camera lens, comprise successively from the object side to the image side: the first lens with positive light coke; Second lens with positive light coke, its object plane side is that concave surface, image planes side are convex surface; The 3rd lens with negative power, the falcate that its object plane side is convex surface, and the image planes side of the 3rd lens has a point of inflexion at least; And described camera lens to have a face at least be aspheric surface, between object and first lens, be provided with diaphragm.
Wherein, this miniature imaging camera lens meets following relationship:
25<V2-V3<45；0.55<ImgH/TTL<0.75；0.75<tanθ<0.97；1.5<f1/f2<2.5；
Wherein, above-mentioned V2 is the abbe number of the second lens, and V3 is the abbe number of the 3rd lens; ImgH is the maximum image height on the imaging surface of described camera lens; TTL is that the thing side of first lens is to the distance of its imaging surface on optical axis; θ is the maximum field of view angle of lens combination; F1 is the focal length of first lens, and f2 is the focal length of the second lens.
In order to improve the image quality of camera lens, reduce the impact of aberration, described miniature imaging camera lens meets following relationship: 25<V2-V3<45;
In addition, in order effectively to shorten the system length of camera lens, guarantee the miniaturization of camera lens, described miniature imaging camera lens meets following relationship: 0.55<ImgH/TTL<0.75;
Further, in order fully to take into account field angle and picture element, guarantee that camera lens has good image quality with great visual angle in the situation that, described miniature imaging camera lens meets following relationship: 0.75<tan θ <0.95 and 1.5<f1/f2<2.5;
In imaging len of the present invention, in this first lens, the second lens and the 3rd lens, having a face at least is aspheric surface, and the 3rd lens has a point of inflexion at least as side, adopt this kind of design, can obtain more control variable, be conducive to the correction of aberration, promote the image quality of camera lens., by rational focal power, distribute meanwhile, can further effectively reduce the tolerance susceptibility of system, be easy to mass production.
With reference to the accompanying drawings foregoing invention is specifically described:
As shown in Figure 1, embodiment 1 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.150; F1=2.042; F2=1.123; F3=-1.216; F=1.537;
V2-V3=32.33；ImgH/TTL=0.621；tanθ=0.824；f1/f2=1.819;
Systematic parameter: f-number 2.0
Table 1:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | 500 | ? | 824.3511 | ? |
| Aspheric surface | 0.8331 | 0.2510 | 1.544/56.11 | 0.7684 | -41.9726 |
| Aspheric surface | 2.9478 | 0.3766 | ? | 0.8823 | -0.8767 |
| Aspheric surface | -1.6650 | 0.4947 | 1.544/56.11 | 1.1094 | 3.0185 |
| Aspheric surface | -0.4950 | 0.0375 | ? | 1.3191 | -4.0417 |
| Aspheric surface | 0.9517 | 0.2000 | 1.635/23.78 | 1.5541 | -11.6863 |
| Aspheric surface | 0.3931 | 0.1802 | ? | 2.1400 | -4.1215 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.1873 | ? |
| Sphere | Infinite | 0.4000 | ? | 2.3181 | ? |
| Sphere | Infinite | ? | ? | 2.6718 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 2:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 5.4422E+00 | -4.7521E+01 | 2.0871E+02 | 4.6213E+02 | -7.7656E+03 | 2.0069E+04 | 1.6353E+03 |
| 2.8013E-01 | -1.5722E+00 | 2.0656E+01 | 2.9537E+00 | -7.1555E+02 | 2.7121E+03 | -1.6589E+03 |
| 4.6694E-01 | -4.5314E+00 | -2.8922E+00 | 9.2623E+01 | -1.1248E+02 | -2.9369E+02 | 4.9784E+02 |
| -9.9488E-01 | 5.7188E-01 | -2.6779E+00 | 6.6638E+00 | 2.3545E+01 | -3.5733E+01 | 1.9168E+01 |
| -1.2941E+00 | -1.5936E+00 | 7.1865E+00 | -1.8897E+00 | -9.5684E+00 | -6.8550E-01 | 1.0127E+01 |
| -1.2201E+00 | 1.8249E+00 | -1.6872E+00 | 5.9005E-01 | 5.2506E-01 | -7.4362E-01 | 2.5045E-01 |
As shown in Figure 6, embodiment 2 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.105; F1=2.11; F2=1.201; F3=-1.326; F=1.529;
V2-V3=32.33；ImgH/TTL=0.698；tanθ=0.897；f1/f2=1.757；
Systematic parameter: f-number 2.0
Table 3:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | 500 | ? | 897.2487 | ? |
| Aspheric surface | 0.7871 | 0.2800 | 1.544/56.11 | 0.7648 | -39.0304 |
| Aspheric surface | 2.1732 | 0.4009 | ? | 0.8689 | 11.0943 |
| Aspheric surface | -1.7038 | 0.4066 | 1.544/56.11 | 1.1391 | 1.2004 |
| Aspheric surface | -0.5134 | 0.0328 | ? | 1.3486 | -4.0734 |
| Aspheric surface | 0.8400 | 0.2000 | 1.635/23.78 | 1.7067 | -8.8237 |
| Aspheric surface | 0.3830 | 0.1749 | ? | 2.1774 | -4.0419 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.4114 | ? |
| Sphere | Infinite | 0.4000 | ? | 2.5381 | ? |
| Sphere | Infinite | ? | ? | 2.8823 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 4:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 6.0923E+00 | -5.5001E+01 | 2.4978E+02 | 5.1898E+02 | -8.5529E+03 | 1.4391E+04 | 3.5983E+04 |
| 4.4320E-01 | -6.1115E+00 | 7.3117E+01 | -2.4035E+02 | -1.4122E+03 | 1.0917E+04 | -1.7626E+04 |
| 8.7615E-01 | -8.7407E+00 | 2.2407E+01 | 2.2646E+01 | -2.9691E+02 | 8.8258E+02 | -1.0102E+03 |
| -6.7255E-01 | -1.4363E+00 | 1.4517E+00 | 9.0364E+00 | -4.2712E-01 | 1.0607E-01 | -5.6806E+00 |
| -1.3756E+00 | -1.3007E+00 | 6.9072E+00 | -1.3656E+00 | -1.0713E+01 | 2.1407E+00 | 6.9415E+00 |
| -1.2230E+00 | 1.8741E+00 | -1.7668E+00 | 6.4742E-01 | 5.7942E-01 | -8.4012E-01 | 2.8238E-01 |
As shown in figure 11, embodiment 3 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.274; F1=2.051; F2=0.949; F3=-1.029; F=1.577;
V2-V3=32.33；ImgH/TTL=0.584；tanθ=0.824；f1/f2=2.161；
Systematic parameter: f-number 2.0
Table 5:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | Infinite | ? | ? | ? |
| Aspheric surface | 0.8927 | 0.3173 | 1.544/56.11 | 0.7888 | -97.6049 |
| Aspheric surface | 3.8471 | 0.2522 | ? | 0.9476 | -7913.8159 |
| Aspheric surface | -1.4131 | 0.6768 | 1.544/56.11 | 1.0195 | 4.6253 |
| Aspheric surface | -0.4434 | 0.0476 | ? | 1.4045 | -3.2904 |
| Aspheric surface | 1.1615 | 0.2138 | 1.635/23.78 | 1.7358 | -67.1069 |
| Aspheric surface | 0.3901 | 0.2065 | ? | 2.1310 | -4.9257 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.1720 | ? |
| Sphere | Infinite | 0.3495 | ? | 2.3123 | ? |
| Sphere | Infinite | ? | ? | 2.6752 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 6-1:
| Face sequence number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.0423E+00 | -7.1711E+01 | 1.8122E+02 | 2.2022E+03 | -9.3853E+03 | -5.1841E+04 | 2.5441E+05 |
| S2 | 3.1591E-01 | 1.8214E+00 | -9.5942E+01 | 5.3453E+02 | 1.9891E+03 | -2.4891E+04 | 5.4467E+04 |
| S3 | -1.7403E-01 | -2.2408E+00 | -5.4695E+00 | 1.3018E+02 | -3.3515E+02 | 1.0703E+03 | -3.9679E+03 |
| S4 | -1.1893E+00 | 3.5839E+00 | -9.1088E+00 | -1.7837E+00 | 6.6657E+01 | -5.5720E+01 | -4.4511E+01 |
| S6 | -8.6119E-01 | 1.4707E+00 | -1.4321E+00 | 4.5012E-01 | 4.5345E-01 | -3.3552E-01 | 1.5791E-02 |
Table 6-2:
As shown in figure 16, embodiment 4 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.005; F1=1.883; F2=1.162; F3=-0.935; F=1.576;
V2-V3=25.96；ImgH/TTL=0.642；tanθ=0.781；f1/f2=1.620；
Systematic parameter: f-number 2.0
Table 7:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | Infinite | ? | ? | ? |
| Aspheric surface | 0.7156 | 0.3858 | 1.544/56.11 | 0.7881 | -22.5384 |
| Aspheric surface | 1.9072 | 0.2745 | ? | 0.8774 | 8.0897 |
| Aspheric surface | -5.6518 | 0.5467 | 1.544/56.11 | 1.0597 | 8.7057 |
| Aspheric surface | -0.5900 | 0.1161 | ? | 1.3421 | -5.1477 |
| Aspheric surface | -65.1704 | 0.2000 | 1.582/30.15 | 1.4550 | -5469.5164 |
| Aspheric surface | 0.5531 | 0.1356 | ? | 2.0314 | -6.2871 |
| Sphere | Infinite | 0.1450 | 1.517/64.17 | 2.3029 | ? |
| Sphere | Infinite | 0.2012 | ? | 2.4068 | ? |
| Sphere | Infinite | ? | ? | 2.5959 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 8:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 6.2273E+00 | -5.4378E+01 | 2.4742E+02 | 5.1345E+02 | -8.3926E+03 | 1.6958E+04 | 1.8239E+04 |
| 4.6849E-01 | -1.9826E+00 | 5.0407E+01 | -2.1204E+02 | -1.0338E+03 | 9.6685E+03 | -1.5292E+04 |
| 5.1922E-01 | -8.1038E+00 | 4.2850E+01 | -6.6869E+01 | -3.7548E+02 | 2.0429E+03 | -3.1586E+03 |
| -6.8876E-01 | -4.0509E-01 | 5.0686E-01 | 7.6759E+00 | -3.4621E+00 | 2.0934E+01 | -3.3267E+01 |
| -2.0921E+00 | -8.6235E-01 | 6.9806E+00 | -1.3216E+00 | -9.2401E+00 | 4.5924E+00 | 1.1092E+01 |
| -1.1712E+00 | 1.7919E+00 | -1.8535E+00 | 6.8584E-01 | 6.5497E-01 | -7.4580E-01 | 1.9351E-01 |
As shown in figure 21, embodiment 5 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.128; F1=2.184; F2=0.912; F3=-0.894; F=1.577;
V2-V3=32.33；ImgH/TTL=0.733；tanθ=0.916；f1/f2=2.395；
Systematic parameter: f-number 2.0
Table 9:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | Infinite | ? | ? | ? |
| Aspheric surface | 0.8688 | 0.4576 | 1.544/56.11 | 0.7886 | -32.9802 |
| Aspheric surface | 2.6071 | 0.2053 | ? | 1.0050 | -8.9441 |
| Aspheric surface | -2.4231 | 0.4841 | 1.544/56.11 | 1.1175 | 2.1183 |
| Aspheric surface | -0.4422 | 0.0375 | ? | 1.3162 | -4.1491 |
| Aspheric surface | 1.3552 | 0.2000 | 1.635/23.78 | 1.4905 | -21.3069 |
| Aspheric surface | 0.3793 | 0.1669 | ? | 2.0608 | -4.7465 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.2705 | ? |
| Sphere | Infinite | 0.3667 | ? | 2.4868 | ? |
| Sphere | Infinite | ? | ? | 3.1429 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 10:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 4.8591E+00 | -4.5279E+01 | 2.1436E+02 | 4.2384E+02 | -8.0705E+03 | 2.0114E+04 | 8.0229E+03 |
| 4.0746E-01 | -2.9102E-01 | 1.3691E+01 | -1.5244E+01 | -6.4735E+02 | 3.1750E+03 | -4.2473E+03 |
| 4.7225E-01 | -3.4688E+00 | -1.1405E+00 | 8.2307E+01 | -1.4893E+02 | -3.7129E+02 | 9.0874E+02 |
| -9.0425E-01 | 4.6473E-01 | -2.4063E+00 | 6.7243E+00 | 2.2080E+01 | -3.9739E+01 | 9.9720E+00 |
| -1.3403E+00 | -1.6121E+00 | 6.9564E+00 | -1.7345E+00 | -9.2188E+00 | -7.3218E-01 | 9.7136E+00 |
| -1.1207E+00 | 1.7774E+00 | -1.7245E+00 | 5.9889E-01 | 5.6797E-01 | -7.0675E-01 | 2.4226E-01 |
As shown in figure 26, embodiment 6 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.173; F1=2.169; F2=1.095; F3=-1.224; F=1.575;
V2-V3=25；ImgH/TTL=0.621；tanθ=0.839；f1/f2=1.981；
Systematic parameter: f-number 2.0
Table 11:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | 500 | ? | ? | ? |
| Aspheric surface | 0.8846 | 0.2771 | 1.54/56.1 | 0.7874 | -38.6952 |
| Aspheric surface | 3.1113 | 0.3700 | ? | 0.9056 | 12.3158 |
| Aspheric surface | -1.6811 | 0.5181 | 1.54/56.1 | 1.1554 | 3.3042 |
| Aspheric surface | -0.4889 | 0.0375 | ? | 1.3498 | -3.8307 |
| Aspheric surface | 0.9430 | 0.2000 | 1.58/31.1 | 1.5730 | -13.3862 |
| Aspheric surface | 0.3754 | 0.1669 | ? | 2.0466 | -4.0037 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.2319 | ? |
| Sphere | Infinite | 0.3930 | ? | 2.3628 | ? |
| Sphere | Infinite | ? | ? | 2.7096 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 12:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 5.3137E+00 | -4.7505E+01 | 2.1147E+02 | 4.7775E+02 | -7.7343E+03 | 1.9844E+04 | -1.3342E+03 |
| 3.3031E-01 | -1.2662E+00 | 1.8752E+01 | -1.7966E+00 | -6.3507E+02 | 3.2904E+03 | -4.8008E+03 |
| 4.0979E-01 | -4.2950E+00 | -1.8387E+00 | 9.3302E+01 | -1.2166E+02 | -3.2679E+02 | 6.3215E+02 |
| -9.7180E-01 | 5.4686E-01 | -2.8807E+00 | 6.1408E+00 | 2.2685E+01 | -3.6226E+01 | 2.2404E+01 |
| -1.3561E+00 | -1.5965E+00 | 7.2260E+00 | -1.8284E+00 | -9.5119E+00 | -6.9239E-01 | 9.8916E+00 |
| -1.2426E+00 | 1.8130E+00 | -1.6905E+00 | 5.9101E-01 | 5.2774E-01 | -7.3948E-01 | 2.5694E-01 |
As shown in figure 31, embodiment 7 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.209; F1=2.168; F2=1.068; F3=-1.208; F=1.574;
V2-V3=37.5；ImgH/TTL=0.611；tanθ=0.839；f1/f2=2.03；
Systematic parameter: f-number 2.0
Table 13:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | 500 | ? | ? | ? |
| Aspheric surface | 0.9215 | 0.3057 | 1.54/58.8 | 0.7871 | -44.6369 |
| Aspheric surface | 3.6796 | 0.3637 | ? | 0.9284 | 7.2805 |
| Aspheric surface | -1.7223 | 0.5357 | 1.54/58.8 | 1.2015 | 3.1522 |
| Aspheric surface | -0.4834 | 0.0375 | ? | 1.3652 | -3.7233 |
| Aspheric surface | 1.0504 | 0.2000 | 1.64/21.3 | 1.6102 | -11.2425 |
| Aspheric surface | 0.4150 | 0.1669 | ? | 2.0507 | -4.1552 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.2630 | ? |
| Sphere | Infinite | 0.3892 | ? | 2.3880 | ? |
| Sphere | Infinite | ? | ? | 2.7111 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 14:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 5.1719E+00 | -4.7281E+01 | 2.0966E+02 | 4.7114E+02 | -7.6835E+03 | 2.0291E+04 | -3.9084E+03 |
| 3.1832E-01 | -1.3385E+00 | 1.7336E+01 | 1.0636E+00 | -6.0077E+02 | 3.3333E+03 | -5.8221E+03 |
| 4.2911E-01 | -4.3296E+00 | -1.7867E+00 | 9.4862E+01 | -1.1564E+02 | -3.2838E+02 | 5.6912E+02 |
| -9.5303E-01 | 5.8435E-01 | -2.8785E+00 | 5.9829E+00 | 2.2273E+01 | -3.6384E+01 | 2.5859E+01 |
| -1.3228E+00 | -1.6065E+00 | 7.2080E+00 | -1.8276E+00 | -9.4829E+00 | -6.5491E-01 | 9.8506E+00 |
| -1.2768E+00 | 1.8289E+00 | -1.6823E+00 | 5.9216E-01 | 5.2538E-01 | -7.4270E-01 | 2.5472E-01 |
As shown in figure 36, embodiment 8 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.171; F1=2.16; F2=1.10; F3=-1.208; F=1.576;
V2-V3=45；ImgH/TTL=0.609；tanθ=0.824；f1/f2=1.964；
Systematic parameter: f-number 2.0
Table 15:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | Infinite | ? | ? | ? |
| Aspheric surface | 0.8815 | 0.2775 | 1.51/68.8 | 0.7883 | -39.1299 |
| Aspheric surface | 3.8674 | 0.3701 | ? | 0.9137 | 10.9451 |
| Aspheric surface | -1.6859 | 0.5186 | 1.51/68.8 | 1.1452 | 3.3169 |
| Aspheric surface | -0.4663 | 0.0375 | ? | 1.3428 | -3.7091 |
| Aspheric surface | 0.9503 | 0.2000 | 1.64/23.8 | 1.5755 | -10.8381 |
| Aspheric surface | 0.3913 | 0.1669 | ? | 2.0181 | -4.3934 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.2069 | ? |
| Sphere | Infinite | 0.3908 | ? | 2.3351 | ? |
| Sphere | Infinite | ? | ? | 2.6706 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 16:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 5.3037E+00 | -4.7558E+01 | 2.1123E+02 | 4.7689E+02 | -7.7367E+03 | 1.9839E+04 | -1.3609E+03 |
| 3.2995E-01 | -1.3571E+00 | 1.8293E+01 | -3.4934E+00 | -6.4081E+02 | 3.2723E+03 | -4.8474E+03 |
| 4.1255E-01 | -4.3181E+00 | -1.9658E+00 | 9.2829E+01 | -1.2286E+02 | -3.2794E+02 | 6.3869E+02 |
| -9.7844E-01 | 5.4689E-01 | -2.8644E+00 | 6.1924E+00 | 2.2813E+01 | -3.5928E+01 | 2.3090E+01 |
| -1.3525E+00 | -1.6004E+00 | 7.2191E+00 | -1.8355E+00 | -9.5167E+00 | -6.9163E-01 | 9.9033E+00 |
| -1.2407E+00 | 1.8153E+00 | -1.6897E+00 | 5.9103E-01 | 5.2732E-01 | -7.4012E-01 | 2.5620E-01 |
As shown in figure 41, embodiment 9 provided by the invention is followed successively by from the object side to the image side: first lens E1, the second lens E2, the 3rd lens E3, optical filter E4 and imaging surface, described first lens E1 is the eyeglass of the positive light coke of plastic material formation, the eyeglass that object plane side is recessed, image planes side is protruding that the second lens E2 is positive light coke, the protruding falcate eyeglass of object plane side that the 3rd lens E3 is negative power, and the image planes side of the 3rd lens E3 has a point of inflexion at least, it is aspheric surface that described camera lens has a face at least, between object and first lens, is provided with diaphragm.
From the object side to the image side, described first lens E1 two sides is S1, S2, and the second lens E2 two sides is S3, S4, and the 3rd lens E3 two sides is S5, S6, and optical filter E4 two sides is S7, S8, and imaging surface is S9.
Each parameter of its camera lens is as described below, TTL=2.284; F1=2.275; F2=0.968; F3=-1.071; F=1.557;
V2-V3=32.33；ImgH/TTL=0.67；tanθ=0.966；f1/f2=2.348；
Systematic parameter: f-number 2.0
Table 17:
| Surface type | Radius-of-curvature | Thickness | Material | Effective diameter | Circular cone coefficient |
| Sphere | Infinite | 500 | ? | 965.6888 | ? |
| Aspheric surface | 1.0296 | 0.4644 | 1.544/56.11 | 0.7786 | -59.5108 |
| Aspheric surface | 5.0642 | 0.2177 | ? | 1.0597 | -46.0922 |
| Aspheric surface | -1.8731 | 0.5887 | 1.544/56.11 | 1.2351 | 3.5652 |
| Aspheric surface | -0.4581 | 0.0375 | ? | 1.4130 | -3.9227 |
| Aspheric surface | 0.9658 | 0.2000 | 1.635/23.78 | 1.7213 | -6.9609 |
| Aspheric surface | 0.3687 | 0.1669 | ? | 2.2720 | -3.5915 |
| Sphere | Infinite | 0.2100 | 1.517/64.17 | 2.4563 | ? |
| Sphere | Infinite | 0.3988 | ? | 2.6138 | ? |
| Sphere | Infinite | ? | ? | 3.0792 | ? |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, the A16 of non-spherical lens:
Table 18:
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 4.8194E+00 | -4.7002E+01 | 2.1038E+02 | 4.6389E+02 | -7.7174E+03 | 2.0308E+04 | -3.4319E+03 |
| 2.4262E-01 | -1.2382E+00 | 1.6595E+01 | -3.3721E+00 | -6.2304E+02 | 3.2630E+03 | -5.2160E+03 |
| 3.8605E-01 | -3.9555E+00 | -1.3934E+00 | 9.4304E+01 | -1.1615E+02 | -3.2757E+02 | 5.4185E+02 |
| -9.9707E-01 | 6.9177E-01 | -2.8192E+00 | 5.2296E+00 | 1.9831E+01 | -3.9615E+01 | 3.1019E+01 |
| -1.3143E+00 | -1.7318E+00 | 7.2286E+00 | -1.4737E+00 | -8.8878E+00 | -4.8740E-01 | 7.6068E+00 |
| -1.2316E+00 | 1.8736E+00 | -1.6704E+00 | 5.9407E-01 | 5.2649E-01 | -7.4214E-01 | 2.5305E-01 |
Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are respectively chromaticity difference diagrams on the axle of embodiment 1, astigmatism figure, distortion figure and ratio chromatism, figure, Fig. 7, Fig. 8, Fig. 9 and Figure 10 are respectively chromaticity difference diagrams on the axle of embodiment 2, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 12, Figure 13, Figure 14 and Figure 15 are respectively chromaticity difference diagrams on the axle of embodiment 3, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 17, Figure 18, Figure 19 and Figure 20 are respectively chromaticity difference diagrams on the axle of embodiment 4, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 22, Figure 23, Figure 24 and Figure 25 are respectively chromaticity difference diagrams on the axle of embodiment 5, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 27, Figure 28, Figure 29 and Figure 30 are respectively chromaticity difference diagrams on the axle of embodiment 6, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 32, Figure 33, Figure 34 and Figure 35 are respectively chromaticity difference diagrams on the axle of embodiment 7, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 37, Figure 38, Figure 39 and Figure 40 are respectively chromaticity difference diagrams on the axle of embodiment 8, astigmatism figure, distortion figure and ratio chromatism, figure, Figure 42, Figure 43, Figure 44 and Figure 45 are respectively chromaticity difference diagrams on the axle of embodiment 9, astigmatism figure, distortion figure and ratio chromatism, figure, by chromaticity difference diagram on the axle of each embodiment, astigmatism figure, distortion figure and ratio chromatism, figure, can find out that the present invention has good optical property.
Although described principle of the present invention and embodiment for miniature imaging camera lens above; but under above-mentioned instruction of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion all drop in protection scope of the present invention.It will be understood by those skilled in the art that specific descriptions are above in order to explain object of the present invention, and not for limiting the present invention, protection scope of the present invention is limited by claim and equivalent thereof.
Claims (5)
1. a miniature imaging camera lens, is characterized in that: be disposed with from the object side to the image side three groups of lens, comprise first lens, the second lens and the 3rd lens, the eyeglass that described first lens is positive light coke; The eyeglass that object plane side is recessed, image planes side is protruding that described the second lens are positive light coke; The protruding falcate eyeglass of object plane side that described the 3rd lens are negative power, and the image planes side of the 3rd lens has a point of inflexion at least; Described camera lens meets
25<V2-V3<45；
1.5<f1/f2<2.5；
0.55<ImgH/TTL<0.75；
Wherein, V2 is the abbe number of the second lens, and V3 is the abbe number of the 3rd lens;
F1 is the focal length of first lens, and f2 is the focal length of the second lens;
ImgH is the maximum image height of described lens system on imaging surface; TTL be first lens thing side to lens system the distance of imaging surface on optical axis.
2. miniature imaging camera lens according to claim 1, is characterized in that: described camera lens meets
0.75<tanθ<0.97
Wherein, half of the maximum field of view angle that θ is lens combination.
3. according to the arbitrary described miniature imaging camera lens of claim 1 or 2, it is characterized in that: between described object and first lens, be provided with diaphragm.
4. miniature imaging camera lens according to claim 3, is characterized in that: described camera lens meets
It is aspheric surface that the lens of described camera lens have a face at least.
5. miniature imaging camera lens according to claim 4, is characterized in that: described first lens is plastic material.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108562999A (en) * | 2018-03-22 | 2018-09-21 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| CN109828346A (en) * | 2018-12-26 | 2019-05-31 | 浙江舜宇光学有限公司 | Optical imaging lens |
| WO2019218760A1 (en) * | 2018-05-17 | 2019-11-21 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| CN113376805A (en) * | 2021-06-16 | 2021-09-10 | 上海摩软通讯技术有限公司 | Optical lens and electronic device |
| WO2022120590A1 (en) * | 2020-12-08 | 2022-06-16 | 欧菲光集团股份有限公司 | Optical imaging system, camera module, electronic device and automobile |
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| CN102213817A (en) * | 2010-04-01 | 2011-10-12 | 大立光电股份有限公司 | Thinned imaging lens |
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| WO2019218760A1 (en) * | 2018-05-17 | 2019-11-21 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| CN109828346A (en) * | 2018-12-26 | 2019-05-31 | 浙江舜宇光学有限公司 | Optical imaging lens |
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| CN113376805A (en) * | 2021-06-16 | 2021-09-10 | 上海摩软通讯技术有限公司 | Optical lens and electronic device |
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