CN103353668B - Miniature pick-up lens - Google Patents
Miniature pick-up lens Download PDFInfo
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- CN103353668B CN103353668B CN201310268399.7A CN201310268399A CN103353668B CN 103353668 B CN103353668 B CN 103353668B CN 201310268399 A CN201310268399 A CN 201310268399A CN 103353668 B CN103353668 B CN 103353668B
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Abstract
The invention provides a miniature pick-up lens, comprising a first lens group and a second lens group from an object side to an image side in sequence. The first lens group comprises a first lens with positive power, a second lens with negative power, a third lens with positive power from an object side to an image side in sequence. An object side of the first lens is a convex surface, and an image side surface is provided with at least an inflection point. An image side surface of the third lens is a convex surface. The second lens group comprises a fourth lens with positive power and a fifth lens with negative power from an object side to an image side in sequence. An object side surface of the fourth lens is a concave surface. An paraxial image side surface is a concave surface, and satisfies 18.0<=(D6/TTL)x100<=21.5, wherein D6 is a distance between the first lens group and the second lens group on an optical axis, and TTL is overall length of the lenses. The miniature pick-up lens uses five plastic aspheric lenses, and through different focal power distribution, the lens is realized to be miniaturized, and meanwhile the lens has better imaging quality.
Description
Technical field
The present invention relates to a kind of micro pick-up lens, the miniature imaging lens combination be made up of five groups of lens.
Background technology
At present along with the development of CMOS chip technology, the Pixel Dimensions of chip is more and more less, and require also more and more higher to the image quality of the optical system matched, the optical lens size of mobile phone or digital camera but becomes more and more less; General slim camera lens due to size little, number of lenses is also fewer, cannot meet high-quality parsing requirement, is bound to increase the quantity of eyeglass like this, makes the optics overall length of camera lens increase simultaneously, be difficult to the characteristic having miniaturization concurrently.Publication number is " CN101876743 ", publication date is " 2010.11.03 ", name is called the patent of invention of " photographic lens group ", propose for this contradiction the optical imaging system that a kind of 5 groups of lens form, five groups of lens in this camera lens from the object side to the image side successively by have positive diopter the first lens, there are negative dioptric second lens, there are negative dioptric 3rd lens, the 4th lens with positive diopter and the 5th lens form.Although this system effectively improves image quality, maintain the characteristic of miniaturization, while pursuit miniaturization, these lens cannot balance eccentric tolerance better, make tolerance sensitivities higher simultaneously, and what determine that this Lens cannot do thus is shorter.
Summary of the invention
Therefore, the present invention proposes that a kind of high-resolution is slim, the pick-up lens of low sensitivity, solve camera lens has better image quality while miniaturization, and its technical scheme is as described below:
A kind of micro pick-up lens, sequentially comprise the first lens combination and the second lens combination by thing side to image side, described first lens combination is sequentially comprised to image side by thing side:
First lens of tool positive light coke, its thing side is convex surface, and image side is provided with at least one point of inflexion on the surface;
Second lens of tool negative power;
3rd lens of tool positive light coke, its face, image side is convex surface;
Described second mirror group is sequentially comprised to image side by thing side:
4th lens of tool positive light coke, its thing side is concave surface;
5th lens of tool negative power, its face, image side, paraxial place is concave surface;
Described camera lens meets:
18.0≦(D6/TTL)*100≦21.5
Wherein, D6 is the first mirror group and the spacing of the second mirror group on optical axis, and TTL is the overall length of lens.
Further, described camera lens meets
-1.0≦f1.2.3/f4.5≦-0.25
Wherein, f1.2.3 is the combined focal length of the first mirror group, and f4.5 is the combined focal length of the second mirror group.
Further, described camera lens meets
-30<R7/R10<-6.5
Wherein, R7 is the thing side surface radius-of-curvature of the eyeglass of side closest to the object in the second mirror group, and R10 is the image side surface curvature radius closest to the eyeglass of image side in the second mirror group.
Described camera lens is provided with light hurdle before the first lens combination.
Described camera lens has at least a face to be aspheric surface.
Present invention employs 5 plastic aspherical element eyeglasses, distributed by different focal powers, overcome the defect of prior art, a kind of new solution is proposed to current specification requirement and performance requirement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of micro pick-up lens embodiment 1 provided by the invention;
Fig. 2 be embodiment 1 axle on chromaticity difference diagram (mm);
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 (μm) of embodiment 1;
Fig. 6 is the schematic diagram of micro pick-up lens embodiment 2 provided by the invention;
Fig. 7 be embodiment 2 axle on chromaticity difference diagram (mm);
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 (μm) of embodiment 2;
Figure 11 is the schematic diagram of micro pick-up lens embodiment 3 provided by the invention;
Figure 12 be embodiment 3 axle on chromaticity difference diagram (mm);
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 (μm) of embodiment 3;
Figure 16 is the schematic diagram of micro pick-up lens embodiment 4 provided by the invention;
Figure 17 be embodiment 4 axle on chromaticity difference diagram (mm);
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 (μm) of embodiment 4.
Embodiment
Optical lens provided by the invention, as shown in the schematic diagram 1 in embodiment 1, be followed successively by light hurdle, the first lens combination, the second lens combination, optical filter E6 and optical lens from the object side to image side, described first lens combination is followed successively by the first lens E1, the second lens E2 of negative power, the 3rd lens E3 of positive light coke of positive light coke from the object side to image side, the thing side S2 of described first lens E1 is convex surface, and surface, image side S3 is provided with at least one point of inflexion, face, the image side S7 of described 3rd lens E3 is convex surface.
Described second lens combination is sequentially the 4th lens of positive light coke by thing side to image side, and its thing side S8 is concave surface; And the 5th lens of negative power, its face, image side is concave surface.
In described camera lens, at least one face is aspheric surface.
In Fig. 1, from the object side to image side, face, light hurdle is S1, first lens E1 two sides is S2, S3, and the second lens E2 two sides is S4, S5, and the 3rd lens E3 two sides is S6, S7,4th lens E4 two sides is S8, S9,5th lens E5 two sides is S10, S11, and optical filter E6 two sides is S12, S13, and optical lens face is S14.
TTL=4.261；f1=2.647；f2=-3.351；f3=5.936；f4=2.355；f5=-1.480；f=3.558；
(D6/TTL)*100=18.88；
f1.2.3/f4.5=-0.498；
R7/R10=-10.682；
Systematic parameter: 1/3 " sensor devices f-number 2.0
Table 1
| Surface type | Radius-of-curvature | Thickness | Material | Effective aperture | Circular cone coefficient |
| Sphere | Infinite | Infinite | |||
| Aspheric surface | 1.7085 | 0.4595 | 1.544/56.11 | 1.7159 | -1.3815 |
| Aspheric surface | -8.4816 | 0.0754 | 1.7159 | 50.2873 | |
| Aspheric surface | 8.7541 | 0.2250 | 1.635/23.78 | 1.8800 | -52.4640 |
| Aspheric surface | 1.7060 | 0.2951 | 1.9400 | 1.1310 | |
| Aspheric surface | 9.3464 | 0.5547 | 1.544/56.11 | 1.9400 | 44.5950 |
| Aspheric surface | -4.8566 | 0.8044 | 2.3000 | -18.0645 | |
| Aspheric surface | -19.6177 | 0.4815 | 1.544/56.11 | 3.1941 | 62.3410 |
| Aspheric surface | -1.2169 | 0.3714 | 3.7756 | -5.7294 | |
| Aspheric surface | -1.5113 | 0.2450 | 1.544/56.11 | 4.4000 | -5.1262 |
| Aspheric surface | 1.8366 | 0.1386 | 5.0000 | -22.6676 | |
| Sphere | Infinite | 0.1100 | 1.517/64.17 | 5.5602 | |
| Sphere | Infinite | 0.5000 | 5.6266 | ||
| Sphere | Infinite | 6.0738 |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:
Table 2
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 4.1622E-02 | -5.0610E-02 | 1.4710E-01 | -1.2871E-01 | 6.8531E-02 | -2.8020E-02 | 5.4946E-02 |
| 1.1329E-01 | -5.0163E-02 | 2.1632E-01 | -3.4437E-01 | 3.6233E-01 | -2.0774E-01 | 1.6835E-01 |
| -9.8233E-03 | 1.8043E-01 | -1.5526E-01 | 1.3960E-03 | 3.3806E-02 | 8.8220E-03 | 5.5615E-03 |
| -1.7950E-01 | 2.7682E-01 | -2.4191E-01 | 2.1669E-02 | 8.3839E-02 | -7.6507E-02 | 2.1749E-02 |
| -8.3062E-02 | -2.3399E-02 | 4.7022E-02 | 2.4273E-02 | 1.0972E-02 | 2.0143E-02 | -2.5569E-02 |
| -7.4781E-02 | -4.9987E-02 | 5.5016E-02 | -3.9352E-02 | 2.9447E-02 | -1.3656E-02 | 1.1393E-02 |
| -8.4259E-03 | -5.9155E-02 | 6.1714E-02 | -4.1118E-02 | 9.9524E-03 | 3.3524E-04 | -3.2090E-04 |
| -7.1722E-02 | 5.6349E-02 | -1.6291E-02 | 3.1264E-03 | -4.7831E-04 | -5.1808E-06 | 9.1083E-06 |
| -1.0091E-01 | 4.9101E-02 | -6.4370E-03 | -4.0712E-04 | 1.5936E-04 | -9.4428E-06 | -1.5795E-08 |
| -4.8269E-02 | 1.6793E-02 | -4.3679E-03 | 4.7171E-04 | -2.1872E-05 | -1.2043E-06 | 2.9111E-07 |
As shown in the schematic diagram 6 in embodiment 2, be followed successively by light hurdle, the first lens combination, the second lens combination, optical filter E6 and optical lens from the object side to image side, described first lens combination is followed successively by the first lens E1, the second lens E2 of negative power, the 3rd lens E3 of positive light coke of positive light coke from the object side to image side, the thing side S2 of described first lens E1 is convex surface, and surface, image side S3 is provided with at least one point of inflexion, face, the image side S7 of described 3rd lens E3 is convex surface.
Described second lens combination is sequentially the 4th lens of positive light coke by thing side to image side, and its thing side S8 is concave surface; And the 5th lens of negative power, its face, image side is concave surface.
In described camera lens, at least one face is aspheric surface.
In Fig. 6, from the object side to image side, face, light hurdle is S1, first lens E1 two sides is S2, S3, and the second lens E2 two sides is S4, S5, and the 3rd lens E3 two sides is S6, S7,4th lens E4 two sides is S8, S9,5th lens E5 two sides is S10, S11, and optical filter E6 two sides is S12, S13, and optical lens face is S14.
TTL=4.263；f1=2.608；f2=-3.431；f3=6.825；f4=2.285；f5=-1.525；f=3.511；
(D6/TTL)*100=18.153；
f1.2.3/f4.5=-0.389；
R7/R10=-7.278；
Systematic parameter: 1/3 " sensor devices f-number 2.0
Table 3
| Surface type | Radius-of-curvature | Thickness | Material | Effective aperture | Circular cone coefficient |
| Sphere | Infinite | Infinite | |||
| Aspheric surface | 1.5803 | 0.5346 | 1.544/56.11 | 1.6873 | -1.1178 |
| Aspheric surface | -12.6693 | 0.0350 | 1.6873 | 0.0000 | |
| Aspheric surface | 9.3005 | 0.2118 | 1.635/23.78 | 1.7249 | -516.5321 |
| Aspheric surface | 1.7612 | 0.3023 | 1.8248 | 0.8335 | |
| Aspheric surface | 9.1703 | 0.5033 | 1.544/56.11 | 2.0839 | 65.1174 |
| Aspheric surface | -6.1549 | 0.7739 | 2.3019 | -18.5601 | |
| Aspheric surface | -10.5450 | 0.5152 | 1.544/56.11 | 2.9768 | 44.5889 |
| Aspheric surface | -1.1346 | 0.3618 | 3.4752 | -5.5798 | |
| Aspheric surface | -2.0716 | 0.2410 | 1.544/56.11 | 4.5000 | -4.7758 |
| Aspheric surface | 1.4488 | 0.1741 | 4.9831 | -14.4265 | |
| Sphere | Infinite | 0.1100 | 1.517/64.17 | 5.5898 | |
| Sphere | Infinite | 0.5000 | 5.6516 | ||
| Sphere | Infinite | 6.1216 |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:
Table 4
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 5.7802E-02 | -2.7383E-02 | 1.2432E-01 | -1.3598E-01 | 9.9760E-02 | 3.4544E-03 | 5.2773E-03 |
| 1.2492E-01 | -6.0555E-02 | 2.0019E-01 | -4.0800E-01 | 4.2969E-01 | 1.1347E-02 | 2.2337E-02 |
| -4.1368E-03 | 1.5762E-01 | -2.3359E-01 | 4.3163E-02 | 1.2606E-01 | 8.2428E-03 | 1.7168E-03 |
| -1.8538E-01 | 2.7683E-01 | -1.9322E-01 | -2.4402E-02 | 6.3512E-02 | 3.8147E-03 | -3.0397E-03 |
| -8.5396E-02 | 5.3785E-03 | 8.7102E-02 | -2.8174E-01 | 5.1381E-01 | -3.7763E-01 | 9.5330E-02 |
| -8.0787E-02 | 7.5432E-02 | -2.9307E-01 | 5.6260E-01 | -6.0386E-01 | 3.5423E-01 | -8.0583E-02 |
| -1.5617E-03 | -7.2729E-02 | 7.2285E-02 | -4.1357E-02 | 8.1754E-03 | 9.0807E-05 | -7.0115E-05 |
| -9.5866E-02 | 5.6477E-02 | -1.6103E-02 | 3.3775E-03 | -3.9684E-04 | 1.0021E-06 | -5.6530E-07 |
| -1.1840E-01 | 5.1260E-02 | -6.1085E-03 | -4.1112E-04 | 1.5194E-04 | -1.0474E-05 | 1.1059E-07 |
| -6.5425E-02 | 2.2136E-02 | -4.8590E-03 | 4.4326E-04 | -1.3092E-05 | -2.4041E-07 | 4.2792E-08 |
As shown in the signal Figure 11 in embodiment 3, be followed successively by light hurdle, the first lens combination, the second lens combination, optical filter E6 and optical lens from the object side to image side, described first lens combination is followed successively by the first lens E1, the second lens E2 of negative power, the 3rd lens E3 of positive light coke of positive light coke from the object side to image side, the thing side S2 of described first lens E1 is convex surface, and surface, image side S3 is provided with at least one point of inflexion, face, the image side S7 of described 3rd lens E3 is convex surface.
Described second lens combination is sequentially the 4th lens of positive light coke by thing side to image side, and its thing side S8 is concave surface; And the 5th lens of negative power, its face, image side is concave surface.
In described camera lens, at least one face is aspheric surface.
In Figure 11, from the object side to image side, face, light hurdle is S1, first lens E1 two sides is S2, S3, and the second lens E2 two sides is S4, S5, and the 3rd lens E3 two sides is S6, S7,4th lens E4 two sides is S8, S9,5th lens E5 two sides is S10, S11, and optical filter E6 two sides is S12, S13, and optical lens face is S14.
TTL=4.262；f1=2.707；f2=-3.434；f3=5.935；f4=2.170；f5=-1.444；f=3.583；
(D6/TTL)*100=19.334；
f1.2.3/f4.5=-0.432；
R7/R10=-7.11；
Systematic parameter: 1/3 " sensor devices f-number 2.0
Table 5
| Surface type | Radius-of-curvature | Thickness | Material | Effective aperture | Circular cone coefficient |
| Sphere | Infinite | Infinite | |||
| Aspheric surface | 1.7502 | 0.4618 | 1.544/56.11 | 1.7518 | -1.3580 |
| Aspheric surface | -8.6122 | 0.0513 | 1.7518 | 35.0456 | |
| Aspheric surface | 6.0463 | 0.2511 | 1.635/23.78 | 1.8254 | -52.2882 |
| Aspheric surface | 1.5864 | 0.2987 | 1.8903 | 0.6754 | |
| Aspheric surface | 14.0764 | 0.4863 | 1.544/56.11 | 1.9600 | 28.0791 |
| Aspheric surface | -4.1580 | 0.8239 | 2.1596 | -4.1284 | |
| Aspheric surface | -11.8036 | 0.4862 | 1.544/56.11 | 2.9835 | 32.6686 |
| Aspheric surface | -1.0924 | 0.3315 | 3.5470 | -5.0839 | |
| Aspheric surface | -1.5792 | 0.2466 | 1.544/56.11 | 4.4039 | -7.6222 |
| Aspheric surface | 1.6600 | 0.2141 | 4.8946 | -17.8179 | |
| Sphere | Infinite | 0.1100 | 1.517/64.17 | 5.4942 | |
| Sphere | Infinite | 0.5000 | 5.5605 | ||
| Sphere | Infinite | 6.0637 |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:
Table 6
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 4.2754E-02 | -5.7010E-02 | 1.6454E-01 | -1.0404E-01 | 5.5240E-02 | -9.5334E-02 | 1.3343E-01 |
| 1.2096E-01 | -4.2691E-02 | 2.2344E-01 | -2.9029E-01 | 2.9316E-01 | -2.8008E-01 | 4.1288E-01 |
| -1.0250E-02 | 1.7603E-01 | -1.5351E-01 | 4.5885E-03 | 3.7531E-02 | 2.8316E-02 | 1.0634E-02 |
| -1.9648E-01 | 3.3094E-01 | -5.8172E-01 | 8.7812E-01 | -9.1070E-01 | 4.3689E-01 | -7.1753E-02 |
| -3.1020E-02 | -2.9768E-01 | 1.0648E+00 | -2.0601E+00 | 2.3542E+00 | -1.2541E+00 | 2.2125E-01 |
| -8.6009E-02 | 7.4991E-02 | -4.2358E-01 | 9.3405E-01 | -1.0909E+00 | 6.6028E-01 | -1.4291E-01 |
| -2.6018E-02 | -4.4338E-02 | 5.7213E-02 | -4.2334E-02 | 1.0406E-02 | 4.8734E-04 | -3.5083E-04 |
| -7.3374E-02 | 5.6882E-02 | -1.5589E-02 | 3.0675E-03 | -5.0325E-04 | -1.1213E-05 | 1.0299E-05 |
| -1.0435E-01 | 4.8866E-02 | -6.3184E-03 | -3.8938E-04 | 1.5808E-04 | -9.9314E-06 | 4.0133E-09 |
| -5.3683E-02 | 1.6925E-02 | -4.1075E-03 | 4.4620E-04 | -2.1113E-05 | -1.0341E-06 | 2.8478E-07 |
As shown in the signal Figure 16 in embodiment 4, be followed successively by light hurdle, the first lens combination, the second lens combination, optical filter E6 and optical lens from the object side to image side, described first lens combination is followed successively by the first lens E1, the second lens E2 of negative power, the 3rd lens E3 of positive light coke of positive light coke from the object side to image side, the thing side S2 of described first lens E1 is convex surface, and surface, image side S3 is provided with at least one point of inflexion, face, the image side S7 of described 3rd lens E3 is convex surface.
Described second lens combination is sequentially the 4th lens of positive light coke by thing side to image side, and its thing side S8 is concave surface; And the 5th lens of negative power, its face, image side is concave surface.
In described camera lens, at least one face is aspheric surface.
In Figure 16, from the object side to image side, face, light hurdle is S1, first lens E1 two sides is S2, S3, and the second lens E2 two sides is S4, S5, and the 3rd lens E3 two sides is S6, S7,4th lens E4 two sides is S8, S9,5th lens E5 two sides is S10, S11, and optical filter E6 two sides is S12, S13, and optical lens face is S14.
TTL=3.534；f1=2.243；f2=-2.845；f3=4.917；f4=1.795；f5=-1.196；f=2.962；
(D6/TTL)*100=19.168；
f1.2.3/f4.5=-0.427；
R7/R10=-7.406；
Systematic parameter: 1/4 " sensor devices f-number 2.0
Table 7
| Surface type | Radius-of-curvature | Thickness | Material | Effective aperture | Circular cone coefficient |
| Sphere | Infinite | Infinite | |||
| Aspheric surface | 1.4500 | 0.3826 | 1.544/56.11 | 1.4513 | -1.3580 |
| Aspheric surface | -7.1351 | 0.0425 | 1.4513 | 35.0456 | |
| Aspheric surface | 5.0093 | 0.2080 | 1.635/23.78 | 1.5130 | -52.2882 |
| Aspheric surface | 1.3143 | 0.2475 | 1.5671 | 0.6754 | |
| Aspheric surface | 11.6620 | 0.4029 | 1.544/56.11 | 1.6238 | 28.0791 |
| Aspheric surface | -3.4449 | 0.6774 | 1.7905 | -4.1284 | |
| Aspheric surface | -10.1850 | 0.4028 | 1.544/56.11 | 2.4775 | 32.6686 |
| Aspheric surface | -0.9064 | 0.2747 | 2.9438 | -5.0839E+00 | |
| Aspheric surface | -1.3084 | 0.2043 | 1.544/56.11 | 3.6656 | -7.6222 |
| Aspheric surface | 1.3753 | 0.1774 | 4.0626 | -17.8179 | |
| Sphere | Infinite | 0.1100 | 1.517/64.17 | 4.5615 | |
| Sphere | Infinite | 0.4040 | 4.6279 | ||
| Sphere | Infinite | 5.0116 |
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:
Table 8
| A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| 7.5184E-02 | -1.4606E-01 | 6.1417E-01 | -5.6578E-01 | 4.3765E-01 | -1.1004E+00 | 2.2439E+00 |
| 2.1271E-01 | -1.0937E-01 | 8.3403E-01 | -1.5786E+00 | 2.3226E+00 | -3.2329E+00 | 6.9434E+00 |
| -1.8025E-02 | 4.5099E-01 | -5.7299E-01 | 2.4952E-02 | 2.9735E-01 | 3.2684E-01 | 1.7883E-01 |
| -3.4551E-01 | 8.4787E-01 | -2.1713E+00 | 4.7753E+00 | -7.2153E+00 | 5.0429E+00 | -1.2067E+00 |
| -5.4549E-02 | -7.6267E-01 | 3.9745E+00 | -1.1203E+01 | 1.8652E+01 | -1.4476E+01 | 3.7206E+00 |
| -1.5125E-01 | 1.9213E-01 | -1.5811E+00 | 5.0795E+00 | -8.6426E+00 | 7.6215E+00 | -2.4032E+00 |
| -4.5753E-02 | -1.1360E-01 | 2.1355E-01 | -2.3021E-01 | 8.2446E-02 | 5.6253E-03 | -5.8999E-03 |
| -1.2903E-01 | 1.4573E-01 | -5.8186E-02 | 1.6681E-02 | -3.9871E-03 | -1.2942E-04 | 1.7320E-04 |
| -1.8351E-01 | 1.2519E-01 | -2.3584E-02 | -2.1175E-03 | 1.2524E-03 | -1.1464E-04 | 6.7491E-08 |
| -9.4403E-02 | 4.3363E-02 | -1.5332E-02 | 2.4265E-03 | -1.6728E-04 | -1.1936E-05 | 4.7892E-06 |
Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are chromaticity difference diagram on the axle in embodiment 1, astigmatism figure, distortion figure and ratio chromatism, figure respectively; Fig. 7, Fig. 8, Fig. 9 and Figure 10 are chromaticity difference diagram on the axle in embodiment 2, astigmatism figure, distortion figure and ratio chromatism, figure respectively; Figure 12, Figure 13, Figure 14 and Figure 15 are chromaticity difference diagram on the axle in embodiment 3, astigmatism figure, distortion figure and ratio chromatism, figure respectively; Figure 17, Figure 18, Figure 19 and Figure 20 are chromaticity difference diagram on the axle in embodiment 2, astigmatism figure, distortion figure and ratio chromatism, figure respectively.
By chromaticity difference diagram, astigmatism figure, distortion figure and ratio chromatism, figure on the axle of each embodiment, can find out that the present invention has good optical property.
Although describe principle of the present invention and embodiment for micro pick-up 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 improve or distortion all drops in protection scope of the present invention.It will be understood by those skilled in the art that specific descriptions are above to explain object of the present invention, and not for limiting the present invention, protection scope of the present invention is by claim and equivalents thereof.
Claims (5)
1. a micro pick-up lens, is characterized in that: sequentially comprise the first lens combination and the second lens combination by thing side to image side, and described first lens combination is sequentially comprised to image side by thing side:
First lens of tool positive light coke, its thing side is convex surface, and image side is provided with at least one point of inflexion on the surface;
Second lens of tool negative power;
3rd lens of tool positive light coke, its face, image side is convex surface;
Described second mirror group is sequentially comprised to image side by thing side:
4th lens of tool positive light coke, its thing side is concave surface;
5th lens of tool negative power, its face, image side, paraxial place is concave surface;
Described camera lens meets:
18.0≦(D6/TTL)*100≦21.5
Wherein, D6 is the first mirror group and the spacing of the second mirror group on optical axis, and TTL is the overall length of lens.
2. micro pick-up lens according to claim 1, is characterized in that: described camera lens meets
-1.0≦f1.2.3/f4.5≦-0.25
Wherein, f1.2.3 is the combined focal length of the first mirror group, and f4.5 is the combined focal length of the second mirror group.
3. micro pick-up lens according to claim 1, is characterized in that: described camera lens meets
-30<R7/R10<-6.5
Wherein, R7 is the thing side surface radius-of-curvature of the eyeglass of side closest to the object in the second mirror group, and R10 is the image side surface curvature radius closest to the eyeglass of image side in the second mirror group.
4. micro pick-up lens according to claim 1, is characterized in that: described camera lens is provided with diaphragm before the first lens combination.
5. micro pick-up lens according to claim 1, is characterized in that: described camera lens has at least a face to be aspheric surface.
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| CN201310268399.7A CN103353668B (en) | 2013-06-28 | 2013-06-28 | Miniature pick-up lens |
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| CN103353668B true CN103353668B (en) | 2015-03-18 |
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| CN103969790B (en) * | 2013-12-09 | 2016-05-11 | 玉晶光电(厦门)有限公司 | Optical imaging lens and apply the electronic installation of this optical imaging lens |
| CN108873244B (en) * | 2017-05-08 | 2021-04-02 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN107065142B (en) * | 2017-05-27 | 2023-03-31 | 浙江舜宇光学有限公司 | Imaging lens group |
| CN116449535A (en) | 2018-05-25 | 2023-07-18 | 浙江舜宇光学有限公司 | Image pickup lens |
| WO2021097851A1 (en) * | 2019-11-22 | 2021-05-27 | 天津欧菲光电有限公司 | Optical imaging system, image capture apparatus, and electronic device |
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| US5055922A (en) * | 1990-03-07 | 1991-10-08 | U.S. Precision Lens Incorporated | Color tv projection lens system |
| US8427569B2 (en) * | 2009-02-27 | 2013-04-23 | Konica Minolta Opto, Inc. | Image pickup lens, image pickup apparatus, and mobile terminal |
| JP2011257448A (en) * | 2010-06-04 | 2011-12-22 | Sony Corp | Image pickup lens and image pickup apparatus |
| JP2013068651A (en) * | 2011-09-20 | 2013-04-18 | Tohoku Univ | Image display device |
| CN203455538U (en) * | 2013-06-28 | 2014-02-26 | 浙江舜宇光学有限公司 | Miniature camera lens |
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