CN102073127A - Camera lens - Google Patents
Camera lens Download PDFInfo
- Publication number
- CN102073127A CN102073127A CN 201110047609 CN201110047609A CN102073127A CN 102073127 A CN102073127 A CN 102073127A CN 201110047609 CN201110047609 CN 201110047609 CN 201110047609 A CN201110047609 A CN 201110047609A CN 102073127 A CN102073127 A CN 102073127A
- Authority
- CN
- China
- Prior art keywords
- asphericity coefficients
- lens
- asphericity
- coefficients
- phtographic lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The invention provides a small-sized and large-caliber camera lens which is easy to process, and also well corrects high imaging performance, particularly spherical aberration and coma aberration. The overall optical length and the number of lenses are reduced to a degree that the portability of a portable phone cannot be reduced. The small-sized and large-caliber camera lens is used for imaging light from a shot object on a camera element, and is characterized by comprising a diaphragm, a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power and a fourth lens with negative focal power in turn from an object side, wherein the concave surface of the second lens faces an image side; the positive focal power of the fourth lens is gradually strengthened from the center to the periphery; and the first surface of the object side of the first lens is a concave surface or flat surface.
Description
Technical field
The present invention relates to portable phone is the attached camera head of PC, miniature movable device with small-sized and bigbore phtographic lens phtographic lens etc., that be used for imaging on imaging apparatus with phtographic lens, PC camera.
Background technology
In recent years, for the portable phone phtographic lens, be to pursue further high resolving power, heavy caliber by the high pixel transition of pursuing imaging apparatus.Therefore, propose to have methods such as lengthening optical full length, increase lens numbers.But the viewpoint from this product characteristics of portability that must pay attention to portable phone limits optical full length strictly, and makes the attenuation such as circumferential surface, thickness of camera lens, but has reached the processing boundary.
On the other hand, if the main application target of these phtographic lenses is moving image photographies, then its visual angle is that 50 °～43 ° the accurate camera lens degree of fiducial mark just should be enough.
As described above small-sized heavy caliber phtographic lens in the past, proposition has following phtographic lens (with reference to patent documentation 1): at the position configuration aperture that leans on most object side, comprise the 1st lens combination successively from object side then, the 2nd lens combination and the 3rd lens combination, above-mentioned the 1st lens combination dispose successively from object side and have positive light coke (below, be called positive lens) the 1st lens, and engage with above-mentioned the 1st lens or constitute discretely have negative power (below, be called negative lens) the 2nd lens, above-mentioned the 2nd lens combination only is made of the 3rd lens, the 3rd lens are the positive meniscus lenss (meniscus lens) that at least 1 plane of refraction are made as aspherical shape and are convex as side, above-mentioned the 3rd lens combination only is made of the 4th lens, the 4th lens are that at least 1 plane of refraction is made as the diverging meniscus lens that aspherical shape and object side are convex, it is characterized in that, the focal power of above-mentioned the 1st lens combination satisfies following conditional (1), and the optical axis direction size of camera lens total system satisfies following conditional (2):
(1)0.8＜f
I/f＜2.8
(2)TL/f＜1.7
Wherein, f: the synthetic focal length of camera lens total system, f
I: the synthetic focal length of the 1st lens combination, TL: aperture from by the face of object side distance (wherein, the parallel plane glass part is the air scaled distance) to image planes.
As another small-sized heavy caliber phtographic lens in the past, proposition has following scheme (with reference to patent documentation 2): comprise the 1st lens G1 with positive light coke, the 2nd lens G2 with negative power successively, be that the face of convex surface and the 3rd lens G3 with positive light coke and object side is concave surface or plane and the 4th lens G4 with negative power near optical axis as the face of side from object side, and satisfy following conditional: the focal length focal length
0.28＜|f4/f|＜0.60......(1)
Wherein, f is whole focal length, and f4 is the focal length of the 4th lens G4.
As another small-sized heavy caliber phtographic lens in the past, proposition has following scheme (with reference to patent documentation 3): comprise the 1st lens G1 with positive light coke, the 2nd lens G2 with negative power successively, be that the face of convex surface and the 3rd lens G3 with positive light coke and object side is concave surface or plane and the 4th lens G4 with negative power near optical axis as the face of side from object side, and satisfy following conditional.
0.5＜(|R2|-R1)/(R1+|R2|)......(1)
Wherein, R1 is the radius-of-curvature of face of the object side of the 1st lens G1, and R2 is the radius-of-curvature of face of the picture side of the 2nd lens G2.
＜patent documentation 〉
Patent documentation 1: No. 3424030 communique of Jap.P.
Patent documentation 2: TOHKEMY 2009-020182 communique
Patent documentation 3: TOHKEMY 2010-102162 communique
The value of the conditional of the invention in the patent documentation 1 is as follows:
Conditional embodiment 1 embodiment 2 embodiment 3 embodiment 4 embodiment 5 embodiment 6
f/R1 1.5 1.6 1.61 1.64 1.7 1.61
|f2/f| 0.46 0.49 0.48 0.51 0.55 0.52
f/R4 1.198 1.22 1.15 1.2 1.15 1.25
(v1+v3)/v2 3.6 3.5 3.6 3.5 3.3 3.7
Conditional embodiment 7 embodiment 8 embodiment 9
f/R1 1.84 1.84 1.5
|f2/f| 0.5 0.51 0.52
f/R4 1.1 0.77 1.08
(v1+v3)/v2 3.6 4.2 3.6
The value of the conditional of the invention in the patent documentation 2 is as follows:
Conditional embodiment 1 embodiment 2 embodiment 3 embodiment 4 embodiment 5 embodiment 6
f/R1 1.31 1.4 0.96 1.27 1.42 1.77
|f2/f| 1.0 1.28 0.7 1.06 1.3 2.7
f/R4 2.4 1.7 1.89 2.23 1.76 1.59
(v1+v3)/v2 4.1 4.1 4.6 4.1 4.1 4.4
Conditional embodiment 7 embodiment 8
f/R1 1.47 1.47
|f2/f| 1.4 1.5
f/R4 1.96 1.79
(v1+v3)/v2 4.1 4.1
The value of the conditional of the invention in the patent documentation 3 is as follows:
Conditional embodiment 1 embodiment 2 embodiment 3 embodiment 4 embodiment 5 embodiment 6
f/R1 1.91 1.71 1.96 1.93 1.96 1.92
|f2/f| 1.54 1.04 2.08 3.27 1.43 1.24
f/R4 1.53 1.56 1.4 1.5 1.69 1.98
(v1+v3)/v2 4.3 4.4 4.4 4.3 4.3 4.4
There are the following problems for pick-up lens on the pocket telephone that is installed on the band camera described in the patent documentation 1～3, portable information terminal machine or the like picture pick-up device: if brighter than F2.8, then spherical aberration and coma aberration can increase and cause resolution to descend.Promptly, in these patent documentations in the disclosed high magnification zoom lens, if with spherical aberration and coma correction to portable phone with phtographic lens, PC be the attached camera head of PC, miniature movable device with desired degree such as phtographic lenses, then can not realize heavy caliberization and high pixelation simultaneously.
Summary of the invention
The present invention makes in view of the problems referred to above point of the small-sized heavy caliber phtographic lens of above-mentioned conventional art, its purpose is to provide a kind of small-sized and bigbore phtographic lens of camera lens handling ease, it is suppressed to the degree that can not reduce the portability of portable phone with optical full length, lens number, proofreaies and correct high imaging performance, especially spherical aberration and coma aberration simultaneously well.
The invention provides a kind of phtographic lens, this phtographic lens is the small-sized bigbore phtographic lens that is used to make from light imaging on imaging apparatus of subject, it is characterized in that above-mentioned phtographic lens comprises successively from object side: aperture 2; The 1st lens L1 with positive light coke; Has negative power and concave surface the 2nd lens L2 towards the picture side; The 3rd lens L3 with positive light coke; And positive light coke removes the 4th lens with negative power of grow gradually from the center towards periphery;
Object side the 1st surface of above-mentioned the 1st lens is concave surface or plane.
Phtographic lens of the present invention can be constructed as follows the small-sized and bigbore phtographic lens of camera lens handling ease by structure as described above: this phtographic lens is suppressed to the degree that can not reduce the portability of portable phone with optical full length, lens number, proofreaies and correct high imaging performance, especially spherical aberration and coma aberration simultaneously well.
Embodiments of the present invention are described.
The 1st embodiment is according to above-mentioned phtographic lens, it is characterized in that, satisfies following conditional:
-0.35＜f/R1≤0…(1)
Wherein, f is the focal length of phtographic lens total system, and R1 is the radius-of-curvature on object side the 1st surface of G1 (the 1st lens)
Conditional 1 is used for the relation between the radius-of-curvature on object side the 1st surface of the focal length of regulation phtographic lens total system and G1 (the 1st lens).
By the formula of satisfying condition (1), can proofread and correct well owing to object plane side the 1st surface with the 1st lens is made as coma aberration and the sagittal coma off-axis aberration such as (sagittal coma) that concave surface or plane produce, thereby can obtain higher imaging performance.
If the lower limit of less-than condition formula (1), then spherical aberration can increase and resolution decline.
If the upper limit of greater than condition formula (1) then can't be proofreaied and correct off-axis aberration such as above-mentioned coma aberration and sagittal coma.
The 2nd embodiment is according at above-mentioned phtographic lens, it is characterized in that, satisfies following conditional:
0.90＜|f2/f|＜1.20…(2)
Wherein, f2 is the focal length of the 2nd lens, and f is the focal length of phtographic lens total system.
Conditional (2) is used to stipulate the relation between the focal length of the focal length of the 2nd lens and phtographic lens total system.By the formula of satisfying condition (2), can keep the upward balance between the aberration of off-axis aberration and axle well.
If the lower limit of less-than condition formula (2) though then imaging performance is good, is difficult to realize densification.If the upper limit of greater than condition formula (2) then can make the interior positive light coke of camera lens and the composition grow of negative power, each aberration increases, and can cause that resolution performance descends.
The 3rd embodiment is according to above-mentioned phtographic lens, it is characterized in that, satisfies following conditional:
f/R4＜3.5…(3)
Wherein, R4 is the curvature of the picture side surface of the 2nd lens G02, and f is the focal length of phtographic lens total system.
Conditional (3) is used to stipulate the relation between the focal length of the curvature of picture side surface of the 2nd lens G02 and phtographic lens total system.By the formula of satisfying condition (3), obtain following effect: make coma aberration be formed at a side opposite and offset the coma aberration that object plane R1 produced by the 1st lens G01 with G02.
If the upper limit of greater than condition formula (3) then can cause coma correction excessive.
The 4th embodiment is according to above-mentioned phtographic lens, it is characterized in that, satisfies following conditional:
4.4＜(v1+v3)/v2＜5.8…(4)
Wherein, vn is the Abbe number of n lens.
Conditional (4) is used to stipulate the relation between the Abbe number of the 1st lens～the 3rd lens.By the formula of satisfying condition (4), chromatic aberation on the axis calibration well.
As if the upper limit of greater than condition formula (4), then can cause the correction difficulty of chromatic aberation.
Description of drawings
Fig. 1 is the optical picture of the 1st embodiment of phtographic lens of the present invention;
Fig. 2 is the aberration curve figure of the axial chromatic aberration of the iris radius of the 1st embodiment of expression phtographic lens of the present invention when being 0.7424mm;
Fig. 3 is the aberration diagram of the curvature of the image of the wavelength of the 1st embodiment of expression phtographic lens of the present invention when being 546nm;
Fig. 4 is the aberration diagram of the distortion aberration of the wavelength of the 1st embodiment of expression phtographic lens of the present invention when being 546nm;
Fig. 5 is the aberration diagram of the chromatic aberration,lateral of the wavelength of the 1st embodiment of expression phtographic lens of the present invention when being 546nm;
Fig. 6 is the optical picture of the 2nd embodiment of phtographic lens of the present invention;
Fig. 7 is the aberration curve figure of the axial chromatic aberration of the iris radius of the 2nd embodiment of expression phtographic lens of the present invention when being 0.7424mm;
Fig. 8 is the aberration diagram of the curvature of the image of the wavelength of the 2nd embodiment of expression phtographic lens of the present invention when being 546nm;
Fig. 9 is the aberration diagram of the distortion aberration of the wavelength of the 2nd embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 10 is the aberration diagram of the chromatic aberration,lateral of the wavelength of the 2nd embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 11 is the optical picture of the 3rd embodiment of phtographic lens of the present invention;
Figure 12 is the aberration curve figure of the axial chromatic aberration of the iris radius of the 3rd embodiment of expression phtographic lens of the present invention when being 0.7424mm;
Figure 13 is the aberration diagram of the curvature of the image of the wavelength of the 3rd embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 14 is the aberration diagram of the distortion aberration of the wavelength of the 3rd embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 15 is the aberration diagram of the chromatic aberration,lateral of the wavelength of the 1st embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 16 is the optical picture of the 4th embodiment of phtographic lens of the present invention;
Figure 17 is the aberration curve figure of the axial chromatic aberration of the iris radius of the 4th embodiment of expression phtographic lens of the present invention when being 0.7424mm;
Figure 18 is the aberration diagram of the curvature of the image of the wavelength of the 4th embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 19 is the aberration diagram of the distortion aberration of the wavelength of the 4th embodiment of expression phtographic lens of the present invention when being 546nm;
Figure 20 is the aberration diagram of the chromatic aberration,lateral of the wavelength of the 4th embodiment of expression phtographic lens of the present invention when being 546nm.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.
(the 1st embodiment)
The phtographic lens of the 1st embodiment is:
Focal length 3.56mm
F value (F-number) 2.40
58.12 ° at visual angle
The optical data of the phtographic lens of the 1st embodiment is as follows:
Curvature of face radius thickness Nd Vd diameter of lens quadric surface constant
Thing ∞ ∞
1 (aperture) ∞ 0.03 1.485
2 aspheric surfaces-17.482 1.60 1.486 85.17 1.585 0
3 aspheric surfaces-1.442 0.40 2.496 0
4 aspheric surfaces 2.263 0.60 1.614 25.58 3.003 0
5 aspheric surfaces 1.043 0.76 2.922-2.189
6 aspheric surfaces-6.500 1.19 1.531 56.04 3.048 0
7 aspheric surfaces-0.876 0.05 3.373-3.326
8 aspheric surfaces 4.737 0.50 1.531 56.04 3.880 0
9 aspheric surfaces 0.952 0.40 4.045-6.490
10 ∞ 0.3 1.516 64.14 4.048 (cover glass)
11 ∞ 4.050
Aspheric surface uses the formula (10) with 15 asphericity coefficients to represent.
[formula 1]
In formula 10,
c＝1/r
R: radius-of-curvature
H: from the height of optical axis
K: quadric surface constant (Conic Constant)
A:3 asphericity coefficient
B:4 asphericity coefficient
C:5 asphericity coefficient
D:6 asphericity coefficient
E:7 asphericity coefficient
F:8 asphericity coefficient
G:9 asphericity coefficient
H:10 asphericity coefficient
I:11 asphericity coefficient
J:12 asphericity coefficient
K:13 asphericity coefficient
L:14 asphericity coefficient
M:15 asphericity coefficient
The 2nd asphericity coefficient is as follows:
3 asphericity coefficients-0.007211005
4 asphericity coefficients-0.023891234
5 asphericity coefficients-0.014386231
6 asphericity coefficients 0.010223921
7 asphericity coefficients-0.00917567
8 asphericity coefficients-0.056920117
9 asphericity coefficients 0.00783551
10 asphericity coefficients 0.11912401
11 asphericity coefficients-0.003540121
12 asphericity coefficients-0.088136565
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 3rd asphericity coefficient is as follows:
3 asphericity coefficients-0.001110349
4 asphericity coefficients 0.064475398
5 asphericity coefficients-0.004018891
6 asphericity coefficients-0.011539407
7 asphericity coefficients 0.004030933
8 asphericity coefficients 0.018653849
9 asphericity coefficients 0.001579377
10 asphericity coefficients-0.008088555
11 asphericity coefficients-0.003098759
12 asphericity coefficients 0.004041067
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 4th asphericity coefficient is as follows:
3 asphericity coefficients 0.000653002
4 asphericity coefficients-0.095263608
5 asphericity coefficients 0.004551296
6 asphericity coefficients 0.020773543
7 asphericity coefficients 0.000610846
8 asphericity coefficients 0.00867811
9 asphericity coefficients-0.001283056
10 asphericity coefficients-0.005152747
11 asphericity coefficients 0.000651291
12 asphericity coefficients 0.000386719
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 5th asphericity coefficient is as follows:
3 asphericity coefficients-0.005800435
4 asphericity coefficients-0.027447842
5 asphericity coefficients 0.000592795
6 asphericity coefficients 0.010661177
7 asphericity coefficients 0.000849258
8 asphericity coefficients 0.003835183
9 asphericity coefficients 0.000443666
10 asphericity coefficients-0.001269391
11 asphericity coefficients-0.000179452
12 asphericity coefficients-0.000112462
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 6th asphericity coefficient is as follows:
3 asphericity coefficients-0.011298189
4 asphericity coefficients 0.059105997
5 asphericity coefficients 0.00997153
6 asphericity coefficients-0.006270409
7 asphericity coefficients-0.007579118
8 asphericity coefficients 0.00075122
9 asphericity coefficients-0.000346538
10 asphericity coefficients 0.000265496
11 asphericity coefficients 0.00026435
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 7th asphericity coefficient is as follows:
3 asphericity coefficients 0.021514053
4 asphericity coefficients-0.04383467
5 asphericity coefficients 0.011494644
6 asphericity coefficients 0.004966687
7 asphericity coefficients 0.00242608
8 asphericity coefficients 0.002353763
9 asphericity coefficients-0.002429119
10 asphericity coefficients-0.000397807
11 asphericity coefficients 0.000300121
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 8th asphericity coefficient is as follows:
3 asphericity coefficients-0.019921671
4 asphericity coefficients-0.002938746
5 asphericity coefficients-0.006022214
6 asphericity coefficients-0.012156673
7 asphericity coefficients 0.001806172
8 asphericity coefficients 0.004931718
9 asphericity coefficients-0.00044513
10 asphericity coefficients-0.00062046
11 asphericity coefficients 0.000100836
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 9th asphericity coefficient is as follows:
3 asphericity coefficients-0.011090315
4 asphericity coefficients-0.064663008
5 asphericity coefficients 0.014317423
6 asphericity coefficients 0.004963042
7 asphericity coefficients-0.003576365
8 asphericity coefficients-0.000819788
9 asphericity coefficients 0.000730058
10 asphericity coefficients 0.000483385
11 asphericity coefficients-0.000222591
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
(the 2nd embodiment)
The phtographic lens of the 2nd embodiment is:
Focal length 3.25mm
F value 2.40
62.66 ° at visual angle
Below, be as the criterion with the optical data of the 2nd embodiment and represent optical data.
Curvature of face radius thickness Nd Vd diameter of lens quadric surface constant
1 (aperture) ∞ 0.007 1.36
2 non-ball ∞ 1.845 1.53 56.04 1.46 0
3 aspheric surfaces-1.493 0.244 2.53 0
4 aspheric surfaces 3.039 0.683 1.632 3.88 2.93 0
5 non-balls 1.069 0.536 3.05-2.524
6 aspheric surfaces-25.591 1.418 1.53 56.04 3.52 0
7 aspheric surfaces-0.974 0.050 3.58-4.499
8 non-balls 2.209 0.500 1.53 56.04 4.05 0
9 aspheric surfaces 0.805 0.400 4.29-4.403
10 ∞ 0.300 1.52 64.14 4.20 (cover glass)
11 ∞ 4.15
The 2nd asphericity coefficient is as follows:
3 asphericity coefficients-0.01129743
4 asphericity coefficients 0.01032454
5 asphericity coefficients-0.05086398
6 asphericity coefficients 0.007546223
7 asphericity coefficients 0.03777617
8 asphericity coefficients-0.01588511
9 asphericity coefficients-0.01984939
10 asphericity coefficients 0.01768382
11 asphericity coefficients 0
12 asphericity coefficients-0.01999327
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 3rd asphericity coefficient is as follows:
3 asphericity coefficients-0.005624
4 asphericity coefficients 0.089553
5 asphericity coefficients-0.006253
6 asphericity coefficients-0.017363
7 asphericity coefficients 0.000251
8 asphericity coefficients 0.021082
9 asphericity coefficients 0.003417
10 asphericity coefficients-0.009808
11 asphericity coefficients 0
12 asphericity coefficients 0.001758
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 4th asphericity coefficient is as follows:
3 asphericity coefficients 0.004270
4 asphericity coefficients-0.092721
5 asphericity coefficients 0.007506
6 asphericity coefficients 0.018811
7 asphericity coefficients-0.000275
8 asphericity coefficients 0.008982
9 asphericity coefficients-0.001039
10 asphericity coefficients-0.004781
11 asphericity coefficients 0
12 asphericity coefficients 0.000654
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 5th asphericity coefficient is as follows:
3 asphericity coefficients-0.000996
4 asphericity coefficients-0.028802
5 asphericity coefficients 0.001268
6 asphericity coefficients 0.011368
7 asphericity coefficients-0.000263
8 asphericity coefficients 0.002328
9 asphericity coefficients-0.000327
10 asphericity coefficients-0.001692
11 asphericity coefficients 0
12 asphericity coefficients 0.000251
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 6th asphericity coefficient is as follows:
3 asphericity coefficients 0.00235
4 asphericity coefficients 0.04876
5 asphericity coefficients 0.00808
6 asphericity coefficients-0.00504
7 asphericity coefficients-0.00538
8 asphericity coefficients 0.00247
9 asphericity coefficients 0.00014
10 asphericity coefficients-7.29277
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 7th asphericity coefficient is as follows:
3 asphericity coefficients-0.069576
4 asphericity coefficients-0.010287
5 asphericity coefficients 0.025801
6 asphericity coefficients-0.000710
7 asphericity coefficients-0.002332
8 asphericity coefficients 0.002099
9 asphericity coefficients-0.000693
10 asphericity coefficients 0.000488
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 8th asphericity coefficient is as follows:
3 asphericity coefficients-0.119235
4 asphericity coefficients-0.007801
5 asphericity coefficients 0.012370
6 asphericity coefficients-0.006411
7 asphericity coefficients-0.002014
8 asphericity coefficients 0.002447
9 asphericity coefficients-0.000666
10 asphericity coefficients-0.000102
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 9th asphericity coefficient is as follows:
3 asphericity coefficients-0.083076
4 asphericity coefficients 0.009098
5 asphericity coefficients 0.014032
6 asphericity coefficients-0.012353
7 asphericity coefficients-0.004341
8 asphericity coefficients 0.002035
9 asphericity coefficients 0.001277
10 asphericity coefficients-0.000486
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
(the 3rd embodiment)
The phtographic lens of the 3rd embodiment is:
Focal length 3.26mm
F value 2.40
62.76 ° at visual angle
Curvature of face radius thickness Nd Vd diameter of lens quadric surface constant
1 (aperture) ∞ 0.004 1.3563
2 aspheric surface ∞ 1.875 1.53 56.04 1.4563 0
3 aspheric surfaces-1.547 0.049 2.5606 0
4 aspheric surfaces 2.429 0.702 1.63 23.88 2.9601 0
5 aspheric surfaces 1.029 0.545 3.0312-2.216
6 aspheric surfaces-15.365 1.494 1.55 71.68 3.2349 0
7 aspheric surfaces-1.089 0.050 3.2837-5.118
8 aspheric surfaces 2.577 0.500 1.53 56.04 3.8539 0
9 aspheric surfaces 0.947 0.400 4.0416-5.706
10 ∞ 0.300 1.52 64.14 4.0453 0 (cover glass)
11 ∞ 4.0472
The 2nd asphericity coefficient is as follows:
3 asphericity coefficients-0.0127019
4 asphericity coefficients 0.02673065
5 asphericity coefficients-0.06529852
6 asphericity coefficients 0.0208747
7 asphericity coefficients 0.04191463
8 asphericity coefficients-0.0171798
9 asphericity coefficients-0.04420722
10 asphericity coefficients 0.03596966
11 asphericity coefficients 0
12 asphericity coefficients-0.01543282
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 3rd asphericity coefficient is as follows:
3 asphericity coefficients-0.00153463
4 asphericity coefficients 0.08124042
5 asphericity coefficients 0.01223089
6 asphericity coefficients-0.01939172
7 asphericity coefficients-0.00425329
8 asphericity coefficients 0.02242078
9 asphericity coefficients 0.005560573
10 asphericity coefficients-0.01239374
11 asphericity coefficients 0
12 asphericity coefficients 0.001565621
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 4th asphericity coefficient is as follows:
3 asphericity coefficients 0.001663716
4 asphericity coefficients-0.08708907
5 asphericity coefficients 0.00875865
6 asphericity coefficients 0.02111224
7 asphericity coefficients-0.00128645
8 asphericity coefficients 0.006067185
9 asphericity coefficients-0.00212001
10 asphericity coefficients-0.00342413
11 asphericity coefficients 0
12 asphericity coefficients 0.000528857
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 5th asphericity coefficient is as follows:
3 asphericity coefficients-0.01464688
4 asphericity coefficients-0.02178799
5 asphericity coefficients 0.003288418
6 asphericity coefficients 0.0106688
7 asphericity coefficients-0.00039149
8 asphericity coefficients 0.00319148
9 asphericity coefficients-0.00010584
10 asphericity coefficients-0.00266545
11 asphericity coefficients 0
12 asphericity coefficients 0.000326809
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 6th asphericity coefficient is as follows:
3 asphericity coefficients 0.004141645
4 asphericity coefficients 0.05030176
5 asphericity coefficients 0.01138455
6 asphericity coefficients-0.00234975
7 asphericity coefficients-0.00428364
8 asphericity coefficients 0.002665626
9 asphericity coefficients-0.0001243
10 asphericity coefficients-0.00034834
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 7th asphericity coefficient is as follows:
3 asphericity coefficients-0.09780719
4 asphericity coefficients 0.000542505
5 asphericity coefficients 0.03137389
6 asphericity coefficients-0.00022058
7 asphericity coefficients-0.00364352
8 asphericity coefficients 0.001363092
9 asphericity coefficients-0.00041099
10 asphericity coefficients 0.001596653
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 8th asphericity coefficient is as follows:
3 asphericity coefficients-0.1300054
4 asphericity coefficients-0.0211528
5 asphericity coefficients 0.0108099
6 asphericity coefficients-0.00642861
7 asphericity coefficients-0.00030832
8 asphericity coefficients 0.004229584
9 asphericity coefficients-0.000096536
10 asphericity coefficients-0.00042523
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 9th asphericity coefficient is as follows:
3 asphericity coefficients-0.02264918
4 asphericity coefficients-0.0634774
5 asphericity coefficients 0.01410162
6 asphericity coefficients-0.00589807
7 asphericity coefficients-0.00133129
8 asphericity coefficients 0.0024985
9 asphericity coefficients 0.000993493
10 asphericity coefficients-0.00058006
11 asphericity coefficients 0
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
(the 4th embodiment)
The phtographic lens of the 4th embodiment is:
Focal length 3.26mm
F value 2.40
62.48 ° at visual angle
Curvature of face radius thickness Nd Vd diameter of lens quadric surface constant
Thing ∞ ∞
1 (aperture) ∞ 0.027 1.3599
2 aspheric surfaces-12.881 1.652 1.55 71.68 1.4599 0
3 aspheric surfaces-1.484 0.247 2.4556 0
4 aspheric surfaces 2.307 0.597 1.63 23.88 2.9098 0
5 aspheric surfaces 1.076 0.727 2.9136-2.189
6 aspheric surfaces-3.452 1.176 1.53 56.04 3.0426 0
7 aspheric surfaces-0.924 0.050 3.2908-3.326
8 aspheric surfaces 2.720 0.500 1.53 56.04 3.9760 0
9 aspheric surfaces 0.998 0.400 4.0221-6.490
10 ∞ 0.300 1.52 64.14 4.0263 0 (cover glass)
11 ∞ 4.0328
The 2nd asphericity coefficient is as follows:
3 asphericity coefficients-0.0070677
4 asphericity coefficients-0.023093
5 asphericity coefficients-0.0103666
6 asphericity coefficients 0.01404672
7 asphericity coefficients-0.0052786
8 asphericity coefficients-0.0634868
9 asphericity coefficients 0.00035546
10 asphericity coefficients 0.12635067
11 asphericity coefficients 0.01036199
12 asphericity coefficients-0.1136779
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 3rd asphericity coefficient is as follows:
3 asphericity coefficients 0.00026747
4 asphericity coefficients 0.06256536
5 asphericity coefficients-0.0009308
6 asphericity coefficients-0.0119032
7 asphericity coefficients 0.00132442
8 asphericity coefficients 0.01751256
9 asphericity coefficients 0.0024964
10 asphericity coefficients-0.0062325
11 asphericity coefficients-0.0021903
12 asphericity coefficients 0.00209175
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 4th asphericity coefficient is as follows:
3 asphericity coefficients 0.00427879
4 asphericity coefficients-0.0951012
5 asphericity coefficients 0.00239963
6 asphericity coefficients 0.01730419
7 asphericity coefficients-0.0003219
8 asphericity coefficients 0.00951322
9 asphericity coefficients-0.0005498
10 asphericity coefficients-0.0051284
11 asphericity coefficients 0.00035
12 asphericity coefficients 0.00046999
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 5th asphericity coefficient is as follows:
3 asphericity coefficients-0.0092071
4 asphericity coefficients-0.0288519
5 asphericity coefficients 0.00058699
6 asphericity coefficients 0.01044185
7 asphericity coefficients-0.0000917
8 asphericity coefficients 0.00292672
9 asphericity coefficients 0.0001333
10 asphericity coefficients-0.0014517
11 asphericity coefficients-0.0000994
12 asphericity coefficients 0.00014898
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 6th asphericity coefficient is as follows:
3 asphericity coefficients-0.0053577
4 asphericity coefficients 0.06712455
5 asphericity coefficients 0.01483723
6 asphericity coefficients-0.002824
7 asphericity coefficients-0.0059001
8 asphericity coefficients 0.00084594
9 asphericity coefficients-0.0009789
10 asphericity coefficients-0.0001319
11 asphericity coefficients 0.00064025
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 7th asphericity coefficient is as follows:
3 asphericity coefficients 0.00349169
4 asphericity coefficients-0.0466731
5 asphericity coefficients 0.01205908
6 asphericity coefficients 0.00484319
7 asphericity coefficients 0.0027334
8 asphericity coefficients 0.00291589
9 asphericity coefficients-0.0016658
10 asphericity coefficients-0.0001385
11 asphericity coefficients 0.00026746
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 8th asphericity coefficient is as follows:
3 asphericity coefficients-0.033098
4 asphericity coefficients-0.010901
5 asphericity coefficients 0.00081927
6 asphericity coefficients-0.0108937
7 asphericity coefficients-0.0002148
8 asphericity coefficients 0.00421857
9 asphericity coefficients-0.0001627
10 asphericity coefficients-0.0003782
11 asphericity coefficients 0.0000165
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
The 9th asphericity coefficient is as follows:
3 asphericity coefficients-0.0180018
4 asphericity coefficients-0.0273204
5 asphericity coefficients 0.00554366
6 asphericity coefficients 0.00061313
7 asphericity coefficients-0.0036058
8 asphericity coefficients-0.0001784
9 asphericity coefficients 0.00089793
10 asphericity coefficients 0.00048247
11 asphericity coefficients-0.0002454
12 asphericity coefficients 0
13 asphericity coefficients 0
14 asphericity coefficients 0
15 asphericity coefficients 0
Each conditional value of the 1st～the 4th embodiment of the present invention is as follows:
Conditional embodiment 1 embodiment 2 embodiment 3 embodiment 4
f/R1 -0.25 0 0 -0.2
|f2/f| 1.08 0.91 1.06 1.19
f/R4 3.41 3.04 3.16 3.03
(v1+v3)/v2 5.5 4.7 5.3 5.3。
Claims (7)
1. phtographic lens, this phtographic lens is the small-sized bigbore phtographic lens that is used to make from light imaging on imaging apparatus of subject, it is characterized in that,
Above-mentioned phtographic lens comprises successively from object side: aperture; The 1st lens with positive light coke; Have negative power and concave surface the 2nd lens towards the picture side; The 3rd lens with positive light coke; And positive light coke removes the 4th lens with negative power of grow gradually from the center towards periphery;
Object side the 1st surface of above-mentioned the 1st lens is concave surface or plane.
2. phtographic lens according to claim 1 is characterized in that,
Satisfy following conditional:
-0.35＜f/R1≤0…(1)
Wherein, f is the focal length of phtographic lens total system, and R1 is the radius-of-curvature on object side the 1st surface of the 1st lens G1.
3. phtographic lens according to claim 1 is characterized in that,
Satisfy following conditional:
0.90＜|f2/f|＜1.20…(2)
Wherein, f2 is the focal length of the 2nd lens, and f is the focal length of phtographic lens total system.
4. phtographic lens according to claim 2 is characterized in that,
Satisfy following conditional:
0.90＜|f2/f|＜1.20…(2)
Wherein, f2 is the focal length of the 2nd lens, and f is the focal length of phtographic lens total system.
5. according to each described phtographic lens in the claim 1 to 4, it is characterized in that,
Satisfy following conditional:
f/R4＜3.5…(3)
Wherein, R4 is the curvature of the picture side surface of the 2nd lens G02, and f is the focal length of phtographic lens total system.
6. according to each described phtographic lens in the claim 1 to 4, it is characterized in that,
Satisfy following conditional:
4.4＜(v1+v3)/v2＜5.8…(4)
Wherein, vn is the Abbe number of n lens.
7. phtographic lens according to claim 5 is characterized in that,
Satisfy following conditional:
4.4＜(v1+v3)/v2＜5.8…(4)
Wherein, vn is the Abbe number of n lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100476090A CN102073127B (en) | 2011-02-28 | 2011-02-28 | Camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100476090A CN102073127B (en) | 2011-02-28 | 2011-02-28 | Camera lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102073127A true CN102073127A (en) | 2011-05-25 |
| CN102073127B CN102073127B (en) | 2012-05-23 |
Family
ID=44031734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100476090A Expired - Fee Related CN102073127B (en) | 2011-02-28 | 2011-02-28 | Camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102073127B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502869A (en) * | 2011-06-24 | 2014-01-08 | 奥林巴斯医疗株式会社 | Objective optical system |
| CN108345088A (en) * | 2017-01-23 | 2018-07-31 | 康达智株式会社 | Pick-up lens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240082A1 (en) * | 2003-05-30 | 2004-12-02 | Olympus Corporation | Imaging optical system and electronic apparatus using the same |
| CN1892278A (en) * | 2005-07-04 | 2007-01-10 | 富士能株式会社 | Imaging lens |
| JP2009169005A (en) * | 2008-01-15 | 2009-07-30 | Kantatsu Co Ltd | Imaging lens |
| JP2010271541A (en) * | 2009-05-21 | 2010-12-02 | Panasonic Corp | Imaging lens and imaging apparatus using the same |
| CN201955537U (en) * | 2011-02-28 | 2011-08-31 | 腾龙光学（佛山）有限公司 | Photographic lens |
-
2011
- 2011-02-28 CN CN2011100476090A patent/CN102073127B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240082A1 (en) * | 2003-05-30 | 2004-12-02 | Olympus Corporation | Imaging optical system and electronic apparatus using the same |
| CN1892278A (en) * | 2005-07-04 | 2007-01-10 | 富士能株式会社 | Imaging lens |
| JP2009169005A (en) * | 2008-01-15 | 2009-07-30 | Kantatsu Co Ltd | Imaging lens |
| JP2010271541A (en) * | 2009-05-21 | 2010-12-02 | Panasonic Corp | Imaging lens and imaging apparatus using the same |
| CN201955537U (en) * | 2011-02-28 | 2011-08-31 | 腾龙光学（佛山）有限公司 | Photographic lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502869A (en) * | 2011-06-24 | 2014-01-08 | 奥林巴斯医疗株式会社 | Objective optical system |
| CN103502869B (en) * | 2011-06-24 | 2015-08-26 | 奥林巴斯医疗株式会社 | Objective lens optical system |
| CN108345088A (en) * | 2017-01-23 | 2018-07-31 | 康达智株式会社 | Pick-up lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102073127B (en) | 2012-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206178230U (en) | Shooting lens | |
| CN113238353B (en) | Camera lens | |
| CN204028445U (en) | Pick-up lens | |
| CN205720843U (en) | Pick-up lens | |
| CN208297805U (en) | Pick-up lens | |
| CN204832662U (en) | Camera lens | |
| CN101256263B (en) | Imaging lens | |
| CN204422849U (en) | The pick-up lens that 6 pieces of optical elements are formed | |
| CN201278038Y (en) | Photographic lens and photographic device | |
| CN202886714U (en) | Pick-up lens | |
| CN203519917U (en) | Camera lens and camera device with camera lens | |
| CN203981955U (en) | Pick-up lens and the camera head that possesses pick-up lens | |
| CN203965708U (en) | Pick-up lens | |
| CN204188871U (en) | Pick-up lens | |
| CN207965337U (en) | Pick-up lens | |
| JP5584938B2 (en) | Imaging lens | |
| CN203117504U (en) | Camera lens | |
| CN204166189U (en) | Pick-up lens | |
| CN102246080A (en) | Image capturing lens | |
| CN204422848U (en) | The pick-up lens that 6 pieces of optical elements are formed | |
| KR101306550B1 (en) | Imaging optical system | |
| JP2007322839A (en) | Imaging lens and personal digital assistant | |
| CN216310381U (en) | Camera lens | |
| CN206440880U (en) | Pick-up lens | |
| CN102073127B (en) | Camera lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |