CN105607232A - Telephoto lens - Google Patents
Telephoto lens Download PDFInfo
- Publication number
- CN105607232A CN105607232A CN201610164828.XA CN201610164828A CN105607232A CN 105607232 A CN105607232 A CN 105607232A CN 201610164828 A CN201610164828 A CN 201610164828A CN 105607232 A CN105607232 A CN 105607232A
- Authority
- CN
- China
- Prior art keywords
- lens
- telephoto
- telephoto lens
- aspheric surface
- following relationship
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
Abstract
The invention discloses a telephoto lens. From the object side to the image side successively, the telephoto lens includes: a first lens with positive focal power, a second lens with focal power, a third lens with negative focal power, a fourth lens with negative focal power, and a fifth lens with focal power, wherein the object side surface of the first lens is a convex surface; the image side surface of the second lens is a convex surface; the image side surface of the fourth lens is an aspheric surface; and the image side surface of the fifth lens is a convex surface. The telephoto lens satisfies the following relation: 0.75<TTL/f<1.0, wherein TTL is the epiaxial distance from the object side surface of the first lens to the imaging surface; and f is the effective focal length of the telephoto lens. The telephoto lens satisfying the above configuration can guarantee the long focal length characteristic of the lens and is provided with a small depth of field and a greater amplification multiplying power, and can match with a wide-angle lens so that higher resolution can be obtained far and near under the automatic focusing situation.
Description
Technical field
The present invention relates to shooting field, more specifically, relate to a kind of small-sized telephoto lens.
Background technology
Along with charge coupled device (charge-coupleddevice, CCD) and CMOSThe performance of (complementarymetal-oxidesemiconductor, CMOS) imageing sensor improves and size subtractsLittle, corresponding pick-up lens also needs to meet the requirement of high image quality and miniaturization.
Along with the requirement of the image quality of people to portable type electronic product is more and more higher, the electronics such as mobile phone, panel computer produceThat product will become will be thinner, volume is less. In order to meet miniaturization, need to reduce as much as possible the eyeglass quantity of imaging lens,But the shortage of the design freedom causing thus, can be difficult to meet the demand of market to high imaging performance. And main flow at presentPick-up lens, in order to obtain the image at wide visual angle, adopts wide-angle optics, but is unfavorable for taking compared with far object, cannotObtain image clearly.
Summary of the invention
The embodiment of the present invention is intended at least solve one of technical problem existing in prior art. For this reason, the embodiment of the present inventionA kind of telephoto lens need to be provided.
A kind of telephoto lens, is extremely sequentially comprised as side by thing side:
Have the first lens of positive light coke, the thing side of this first lens is convex surface;
There are the second lens of focal power, these the second lens be convex surface as side;
There are the 3rd lens of negative power;
There are the 4th lens of negative power, the 4th lens be aspheric surface as side;
There are the 5th lens of focal power, the 5th lens be convex surface as side;
This telephoto lens meets following relationship: 0.75 < TTL/f < 1.0;
Wherein, the thing side that TTL is this first lens is to distance on the axle of imaging surface; F is effective Jiao of this telephoto lensDistance.
The telephoto lens that meets above-mentioned configuration can ensure the burnt characteristic of length of camera lens to have the little depth of field and larger enlargement ratio;The wide-angle lens of simultaneously arranging in pairs or groups, far and near the in the situation that of focusing automatically have higher resolution ratio.
In one embodiment, this telephoto lens meets following relationship :-0.5 < R1/R4 < 0;
Wherein, the radius of curvature of the thing side that R1 is this first lens, R4 is the curvature half of the picture side of these the second lensFootpath.
In one embodiment, this telephoto lens meets following relationship :-1.0 < f12/f3 <-0.5;
Wherein, f12 is the synthetic focal length of this first lens and these the second lens, and f3 is the effective focal length of the 3rd lens.
In one embodiment, this telephoto lens meets following relationship: 1.0 < (CT1+CT2)/CT5 < 1.5;
Wherein, the center thickness that CT1 is this first lens, CT2 is the center thickness of these the second lens, CT5 is the 5thThe center thickness of lens.
In one embodiment, this telephoto lens meets following relationship :-1.0 < f3/f < 0;-2.0 < f4/f <-0.5;
Wherein, f3 is the effective focal length of the 3rd lens, and f4 is the effective focal length of the 4th lens.
In one embodiment, this telephoto lens meets following relationship: 0 < R1/R6 < 1.0;
Wherein, the radius of curvature of the thing side that R1 is this first lens, R6 is the curvature half of the picture side of the 3rd lensFootpath.
In one embodiment, this telephoto lens meets following relationship: | (R5+R6)/(R5-R6) |≤0.2;
Wherein, R5 is the radius of curvature of the thing side of the 3rd lens, and R6 is the curvature half of the picture side of the 3rd lensFootpath.
In one embodiment, this telephoto lens meets following relationship: 0 < Dr1r6/TTL < 0.5;
Wherein, the thing side that Dr1r6 is this first lens is to the distance on the axle of side that looks like of the 3rd lens.
In one embodiment, this telephoto lens meets following relationship :-2.5 < f45/f <-1.0;
Wherein, f45 is the synthetic focal length of the 4th lens and the 5th lens.
In one embodiment, these second lens have positive light coke, and this telephoto lens meets following relationship:0.9<f2/R3<2.0；
Wherein, f2 is the effective focal length of these the second lens, and R3 is the radius of curvature of the thing side of these the second lens.
The additional aspect of the embodiment of the present invention and advantage in the following description part provide, and part is by the description from belowIn become obviously, or recognize by the practice of the embodiment of the present invention.
Brief description of the drawings
Above-mentioned and/or the additional aspect of the embodiment of the present invention and advantage from conjunction with below accompanying drawing to the description of embodiment willBecome obviously and easily and understand, wherein:
Fig. 1 is the structural representation of the telephoto lens of embodiment 1;
Fig. 2 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 1; Fig. 3 is the resembling of telephoto lens of embodiment 1Loose figure (mm); Fig. 4 is the distortion figure (%) of the telephoto lens of embodiment 1; Fig. 5 is the telephoto lens of embodiment 1Ratio chromatism, figure (um);
Fig. 6 is the structural representation of the telephoto lens of embodiment 2;
Fig. 7 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 2; Fig. 8 is the resembling of telephoto lens of embodiment 2Loose figure (mm); Fig. 9 is the distortion figure (%) of the telephoto lens of embodiment 2; Figure 10 is the telephoto lens of embodiment 2Ratio chromatism, figure (um);
Figure 11 is the structural representation of the telephoto lens of embodiment 3;
Figure 12 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 3; Figure 13 is the telephoto lens of embodiment 3Astigmatism figure (mm); Figure 14 is the distortion figure (%) of the telephoto lens of embodiment 3; Figure 15 is that taking the photograph of embodiment 3 is far awayThe ratio chromatism, figure (um) of camera lens;
Figure 16 is the structural representation of the telephoto lens of embodiment 4;
Figure 17 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 4; Figure 18 is the telephoto lens of embodiment 4Astigmatism figure (mm); Figure 19 is the distortion figure (%) of the telephoto lens of embodiment 4; Figure 20 is that taking the photograph of embodiment 4 is far awayThe ratio chromatism, figure (um) of camera lens;
Figure 21 is the structural representation of the telephoto lens of embodiment 5;
Figure 22 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 5; Figure 23 is the telephoto lens of embodiment 5Astigmatism figure (mm); Figure 24 is the distortion figure (%) of the telephoto lens of embodiment 5; Figure 25 is that taking the photograph of embodiment 5 is far awayThe ratio chromatism, figure (um) of camera lens;
Figure 26 is the structural representation of the telephoto lens of embodiment 6;
Figure 27 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 6; Figure 28 is the telephoto lens of embodiment 6Astigmatism figure (mm); Figure 29 is the distortion figure (%) of the telephoto lens of embodiment 6; Figure 30 is that taking the photograph of embodiment 6 is far awayThe ratio chromatism, figure (um) of camera lens;
Figure 31 is the structural representation of the telephoto lens of embodiment 7;
Figure 32 is chromaticity difference diagram (mm) on the axle of telephoto lens of embodiment 7; Figure 33 is the telephoto lens of embodiment 7Astigmatism figure (mm); Figure 34 is the distortion figure (%) of the telephoto lens of embodiment 7; Figure 35 is that taking the photograph of embodiment 7 is far awayThe ratio chromatism, figure (um) of camera lens.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein phase from start to finishSame or similar label represents same or similar element or has the element of identical or similar functions. Attached below by referenceThe embodiment that figure describes is exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " first ", " second " be only for describing object, andCan not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic. Thus, limitThere is the feature of " first ", " second " can express or impliedly comprise one or more described features. At thisIn the description of invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation "," be connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, orConnect integratedly; Can be mechanical connection, can be also electrically connected or can intercom mutually; Can be to be directly connected, alsoCan indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term specifically containing in the present inventionJustice.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present invention. In order to simplifyOf the present invention open, hereinafter the parts to specific examples and setting are described. Certainly, they are only example, andAnd object does not lie in restriction the present invention. In addition, the present invention can be in different examples repeat reference numerals and/or reference wordMother, this repetition is in order to simplify and object clearly, itself not indicate discussed various embodiment and/or set itBetween relation. In addition the various specific technique the invention provides and the example of material, but ordinary skill,Personnel can recognize the application of other techniques and/or the use of other materials.
Refer to Fig. 1, the telephoto lens of preferred embodiment of the present invention, is extremely sequentially comprised as side by thing side:
Have the first lens E1 of positive light coke, the thing side S1 of this first lens E1 is convex surface;
Have the second lens E2 of focal power, these second lens E2's is convex surface as side S4;
There is the 3rd lens E3 of negative power;
Have the 4th lens E4 of negative power, the 4th lens E4's is aspheric surface as side S8;
Have the 5th lens E5 of focal power, the 5th lens E5's is convex surface as side S10;
This telephoto lens meets following relationship: 0.75 < TTL/f < 1.0;
Wherein, TTL is that the thing side S1 of this first lens E1 is to distance on the axle of imaging surface S13; F takes the photograph mirror far away for thisThe effective focal length of head.
The telephoto lens that meets above-mentioned configuration can ensure the burnt characteristic of length of camera lens to have the little depth of field and larger enlargement ratio;The wide-angle lens of simultaneously arranging in pairs or groups, far and near the in the situation that of focusing automatically have higher resolution ratio.
Preferably, this telephoto lens meets following relationship :-0.5 < R1/R4 < 0;
Wherein, R1 is the radius of curvature of the thing side S1 of this first lens E1, and R4 is the picture side of these second lens E2The radius of curvature of S4.
The positive light coke of telephoto lens that meets above formula requirement is relatively forward, and the angle of visual field is less, and the center of telephoto lensOverall picture element to edge is more even, is conducive to promote image quality.
Preferably, this telephoto lens meets following relationship :-1.0 < f12/f3 <-0.5;
Wherein, f12 is the synthetic focal length of this first lens E1 and these second lens E2, and f3 is the 3rd lens E3'sEffective focal length.
The telephoto lens that meets above formula requirement can force down angle of incidence of light degree, makes the angle of visual field of telephoto lens less, meanwhile,Telephoto lens can reasonable disposition lens shape and focal power, when being conducive to ensure the miniaturization of telephoto lens, effectivelyRevise all kinds of aberrations, promoted the image quality of telephoto lens.
Preferably, this telephoto lens meets following relationship: 1.0 < (CT1+CT2)/CT5 < 1.5;
Wherein, CT1 is the center thickness of this first lens E1, and CT2 is the center thickness of these second lens E2, CT5For the center thickness of the 5th lens E5.
Meet the lens thickness distributed uniform of the telephoto lens of above formula requirement, be beneficial to the miniaturization of telephoto lens and the system of lensMake, reduced the cost of telephoto lens.
Preferably, this telephoto lens meets following relationship :-1.0 < f3/f < 0;-2.0 < f4/f <-0.5;
Wherein, f3 is the effective focal length of the 3rd lens E3, and f4 is the effective focal length of the 4th lens E4.
The telephoto lens that meets above formula requirement can make light can too not send out at the 3rd lens E3 and the 4th lens E4 placeLoose, rationally share the aberration of system, and then improved image quality and resolution of lens, be conducive to the 3rd lens E3And the feasibility of the 4th lens E4 manufacturing.
Preferably, this telephoto lens meets following relationship: 0 < R1/R6 < 1.0;
Wherein, R1 is the radius of curvature of the thing side S1 of this first lens E1, and R6 is the picture side of the 3rd lens E3The radius of curvature of S6.
The telephoto lens that meets above formula requirement can further be beneficial to the miniaturization of telephoto lens, meanwhile, and in telephoto lensThe heart is more even to the overall picture element at edge, is conducive to promote image quality.
Preferably, this telephoto lens meets following relationship: | (R5+R6)/(R5-R6) |≤0.2;
Wherein, R5 is the radius of curvature of the thing side S5 of the 3rd lens E3, and R6 is the picture side of the 3rd lens E3The radius of curvature of S6.
The lens of telephoto lens that meet above formula requirement are relatively well-balanced, are easy to processing and the assembling of lens, reduced and taken the photograph mirror far awayThe tolerance sensitivity of head.
Preferably, this telephoto lens meets following relationship: 0 < Dr1r6/TTL < 0.5;
Wherein, Dr1r6 is that the thing side S1 of this first lens E1 is to the distance on the axle of side S6 that looks like of the 3rd lens E3From.
The telephoto lens that meets above formula requirement can ensure the burnt characteristic of length of telephoto lens, is beneficial to telephoto lens and keeps miniaturizationAnd easy characteristic, so that be mounted on frivolous portable electronic product.
Preferably, this telephoto lens meets following relationship :-2.5 < f45/f <-1.0;
Wherein, f45 is the synthetic focal length of the 4th lens E4 and the 5th lens E5.
The telephoto lens that meets above formula requirement can be revised various aberrations, improves the resolution ratio of telephoto lens.
Preferably, these second lens E2 has positive light coke, and this telephoto lens meets following relationship: 0.9 < f2/R3 < 2.0;
Wherein, f2 is the effective focal length of these second lens E2, and R3 is the curvature half of the thing side S3 of these second lens E2Footpath.
The telephoto lens that meets above formula requirement is conducive in the miniaturization that realizes telephoto lens, can reduce camera lensTolerance sensitivity, makes telephoto lens be easy to processing and assembling.
When imaging, light through after five lens through thering is the optical filter E6 of thing side surface S11 and picture side surface S12After image in imaging surface S13.
In certain embodiments, first lens E1, the second lens E2, the 3rd lens E3, the 4th lens E4 and the 5th saturatingMirror E5 is non-spherical lens.
Aspheric shape determined by following formula:
Wherein, h is that in aspheric surface, arbitrary point is to the height of optical axis, and c is vertex curvature, and k is conic constants, Ai right and wrongThe correction factor on sphere i-th rank.
Embodiment 1
Incorporated by reference to Fig. 1～Fig. 5, in embodiment 1, telephoto lens meets the condition of showing 1-3 below:
Table 1
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3931 | 0.6011 | 1.54,56.1 | -0.0258 |
| S2 | Aspheric surface | 18.0779 | 0.0300 | -- | 0 |
| S3 | Aspheric surface | 5.1032 | 0.4458 | 1.54,56.1 | 0 |
| S4 | Aspheric surface | -5.2109 | 0.0657 | -- | 0 |
| S5 | Aspheric surface | -2.7812 | 0.2234 | 1.64,23.5 | -8.4235 |
| S6 | Aspheric surface | 3.7811 | 0.0891 | -- | 11.2050 |
| STO | Sphere | Infinite | 1.1304 | -- | -- |
| S7 | Aspheric surface | -4.6505 | 0.2200 | 1.54,56.1 | 7.5301 |
| S8 | Aspheric surface | 2.9927 | 0.0976 | -- | -58.7597 |
| S9 | Aspheric surface | 22.9732 | 0.8921 | 1.64,23.5 | 0 |
| S10 | Aspheric surface | -4.9188 | 0.2749 | -- | 0 |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 2
Table 3
| f1(mm) | 2.73 | f(mm) | 4.72 |
| f2(mm) | 4.80 | Fno | 2.80 |
| f3(mm) | -2.45 | TTL(mm) | 4.48 |
| f4(mm) | -3.30 | HFOV(deg) | 24.8 |
| f5(mm) | 6.37 |
Embodiment 2
Incorporated by reference to Fig. 6～Figure 10, in embodiment 2, telephoto lens meets the condition of showing 4-6 below:
Table 4
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3348 | 0.5351 | 1.54,56.1 | 0.0286 |
| S2 | Aspheric surface | 4.5004 | 0.0300 | -- | 4.1643 |
| S3 | Aspheric surface | 2.7463 | 0.5077 | 1.54,56.1 | -0.1216 |
| S4 | Aspheric surface | -5.6837 | 0.0665 | -- | 2.9729 |
| S5 | Aspheric surface | -2.6580 | 0.2200 | 1.64,23.5 | -18.9017 |
| S6 | Aspheric surface | 3.3777 | 0.1399 | -- | 25.0000 |
| STO | Sphere | Infinite | 1.0449 | -- | -- |
| S7 | Aspheric surface | -5.9038 | 0.2200 | 1.54,56.1 | 7.3302 |
| S8 | Aspheric surface | 6.3384 | 0.1983 | -- | -58.7596 |
| S9 | Aspheric surface | -3.7141 | 0.8878 | 1.64,23.5 | 0.1055 |
| S10 | Aspheric surface | -3.6391 | 0.2199 | 0.4015 | |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 5
Table 6
| f1(mm) | 3.28 | f(mm) | 5.02 |
| f2(mm) | 3.47 | Fno | 2.80 |
| f3(mm) | -2.28 | TTL(mm) | 4.48 |
| f4(mm) | -5.56 | HFOV(deg) | 25.4 |
| f5(mm) | 49.57 |
Embodiment 3
Incorporated by reference to Figure 11～Figure 15, in embodiment 3, telephoto lens meets the condition of showing 7-9 below:
Table 7
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3596 | 0.5294 | 1.54,56.1 | 0.0178 |
| S2 | Aspheric surface | 4.4967 | 0.0300 | -- | 4.5916 |
| S3 | Aspheric surface | 2.7796 | 0.5514 | 1.54,56.1 | -0.4483 |
| S4 | Aspheric surface | -5.4158 | 0.0654 | -- | 5.5437 |
| S5 | Aspheric surface | -2.7155 | 0.2200 | 1.64,23.5 | -23.0219 |
| S6 | Aspheric surface | 3.2461 | 0.1975 | -- | 25.0000 |
| STO | Sphere | Infinite | 1.0720 | -- | -- |
| S7 | Aspheric surface | -4.8590 | 0.2200 | 1.54,56.1 | 7.3302 |
| S8 | Aspheric surface | 7.1932 | 0.1338 | -- | -58.7596 |
| S9 | Aspheric surface | -4.0591 | 0.8307 | 1.64,23.5 | 0.4848 |
| S10 | Aspheric surface | -3.6361 | 0.2199 | -- | -0.7319 |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 8
Table 9
| f1(mm) | 3.37 | f(mm) | 5.04 |
| f2(mm) | 3.45 | Fno | 2.80 |
| f3(mm) | -2.26 | TTL(mm) | 4.48 |
| f4(mm) | -5.28 | HFOV(deg) | 26.6 |
| f5(mm) | 30.59 |
Embodiment 4
Incorporated by reference to Figure 16～Figure 20, in embodiment 4, telephoto lens meets the condition of showing 10-12 below:
Table 10
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3647 | 0.5428 | 1.54,56.1 | 0.0203 |
| S2 | Aspheric surface | 3.7790 | 0.0300 | -- | 3.3423 |
| S3 | Aspheric surface | 2.6273 | 0.5654 | 1.54,56.1 | 0.0399 |
| S4 | Aspheric surface | -5.5482 | 0.0651 | -- | 1.3702 |
| S5 | Aspheric surface | -3.0244 | 0.2219 | 1.64,23.5 | -13.2231 |
| S6 | Aspheric surface | 2.9172 | 0.2484 | -- | 17.3621 |
| STO | Sphere | Infinite | 0.9254 | -- | -- |
| S7 | Aspheric surface | 53.5648 | 0.2200 | 1.54,56.1 | 7.3824 |
| S8 | Aspheric surface | 3.5830 | 0.3365 | -- | -58.7596 |
| S9 | Aspheric surface | -2.8475 | 0.8945 | 1.64,23.5 | -1.6258 |
| S10 | Aspheric surface | -2.7657 | 0.2199 | -- | -3.1754 |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 11
Table 12
| f1(mm) | 3.62 | f(mm) | 5.24 |
| f2(mm) | 3.35 | Fno | 2.80 |
| f3(mm) | -2.27 | TTL(mm) | 4.68 |
| f4(mm) | -7.04 | HFOV(deg) | 25.6 |
| f5(mm) | 28.25 |
Embodiment 5
Incorporated by reference to Figure 21～Figure 25, in embodiment 5, telephoto lens meets the condition of showing 13-15 below:
Table 13
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3834 | 0.5269 | 1.54,56.1 | 0.0140 |
| S2 | Aspheric surface | 3.9648 | 0.0300 | -- | 4.0557 |
| S3 | Aspheric surface | 2.6934 | 0.5783 | 1.54,56.1 | 0.0872 |
| S4 | Aspheric surface | -5.7559 | 0.0646 | -- | 5.1405 |
| S5 | Aspheric surface | -3.0909 | 0.2200 | 1.64,23.5 | -17.2330 |
| S6 | Aspheric surface | 2.9365 | 0.2585 | -- | 18.0732 |
| STO | Sphere | Infinite | 0.9575 | -- | -- |
| S7 | Aspheric surface | 14.0860 | 0.2248 | 1.54,56.1 | 7.3824 |
| S8 | Aspheric surface | 3.3064 | 0.3156 | -- | -58.7596 |
| S9 | Aspheric surface | -2.9294 | 0.8739 | 1.64,23.5 | -0.3179 |
| S10 | Aspheric surface | -2.9693 | 0.2199 | -- | -1.8671 |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 14
Table 15
| f1(mm) | 3.63 | f(mm) | 5.20 |
| f2(mm) | 3.44 | Fno | 2.80 |
| f3(mm) | -2.30 | TTL(mm) | 4.68 |
| f4(mm) | -7.97 | HFOV(deg) | 26.8 |
| f5(mm) | 44.58 |
Embodiment 6
Incorporated by reference to Figure 26～Figure 30, in embodiment 6, telephoto lens meets the condition of showing 16-18 below:
Table 16
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.5628 | 0.3029 | 1.54,56.1 | 0.2178 |
| S2 | Aspheric surface | 1.8835 | 0.0300 | -- | 2.4880 |
| S3 | Aspheric surface | 1.4403 | 0.8628 | 1.54,56.1 | 0.1044 |
| S4 | Aspheric surface | -5.6866 | 0.0606 | -- | 5.0000 |
| S5 | Aspheric surface | -3.4560 | 0.2200 | 1.64,23.5 | -10.5814 |
| S6 | Aspheric surface | 3.1956 | 0.1140 | -- | 5.0000 |
| STO | Sphere | Infinite | 1.1250 | -- | -- |
| S7 | Aspheric surface | -10.6409 | 0.2200 | 1.54,56.1 | 5.0000 |
| S8 | Aspheric surface | 5.7406 | 0.1876 | -- | -58.7596 |
| S9 | Aspheric surface | -4.2588 | 0.9272 | 1.64,23.5 | 0.7501 |
| S10 | Aspheric surface | -5.6648 | 0.2200 | 1.2884 | |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 17
Table 18
| f1(mm) | 12.61 | f(mm) | 5.20 |
| f2(mm) | 2.20 | Fno | 2.80 |
| f3(mm) | -2.54 | TTL(mm) | 4.68 |
| f4(mm) | -6.80 | HFOV(deg) | 26.5 |
| f5(mm) | -35.90 |
Embodiment 7
Incorporated by reference to Figure 31～Figure 35, in embodiment 7, telephoto lens meets the condition of showing 19-21 below:
Table 19
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 1.3527 | 0.7066 | 1.54,56.1 | -0.0404 |
| S2 | Aspheric surface | -2.1740 | 0.0300 | -- | -60.5643 |
| S3 | Aspheric surface | -2.5120 | 0.3035 | 1.54,56.1 | -99.0000 |
| S4 | Aspheric surface | -4.3904 | 0.0600 | -- | 3.4150 |
| S5 | Aspheric surface | -3.6416 | 0.2200 | 1.64,23.5 | -14.2144 |
| S6 | Aspheric surface | 2.5746 | 0.2031 | -- | 5.0000 |
| STO | Sphere | Infinite | 1.0861 | -- | -- |
| S7 | Aspheric surface | -308.3535 | 0.2500 | 1.54,56.1 | 5.0000 |
| S8 | Aspheric surface | 3.9636 | 0.2439 | -- | -58.7596 |
| S9 | Aspheric surface | -4.2032 | 0.9468 | 1.64,23.5 | 0.5554 |
| S10 | Aspheric surface | -4.4346 | 0.2199 | -- | -0.5862 |
| S11 | Sphere | Infinite | 0.1100 | 1.52,64.2 | -- |
| S12 | Sphere | Infinite | 0.3000 | -- | -- |
| S13 | Sphere | Infinite | -- | -- | -- |
Table 20
Table 21
| f1(mm) | 1.64 | f(mm) | 5.20 |
| f2(mm) | -11.41 | Fno | 2.80 |
| f3(mm) | -2.31 | TTL(mm) | 4.68 |
| f4(mm) | -7.17 | HFOV(deg) | 26.6 |
| f5(mm) | 207.13 |
In embodiment 1-7, each conditional meets the condition of form below:
In the description of this description, reference term " embodiment ", " some embodiment ", " schematically enforcementExample ", the descriptions of " example ", " concrete example " or " some examples " etc. means in conjunction with described embodiment or exampleSpecific features, structure, material or the feature described are contained at least one embodiment of the present invention or example. At thisIn description, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example. And, descriptionSpecific features, structure, material or feature can be in suitable modes in any one or more embodiment or exampleIn conjunction with.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint phase counterweightThe property wanted or the implicit quantity that indicates indicated technical characterictic. Thus, be limited with the feature of " first ", " second "Can express or impliedly comprise at least one this feature. In description of the invention, the implication of " multiple " is at leastTwo, for example two, three etc., unless otherwise expressly limited specifically.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentionedEmbodiment changes, amendment, replacement and modification.
Claims (10)
1. a telephoto lens, is characterized in that, is extremely sequentially comprised as side by thing side:
Have the first lens of positive light coke, the thing side of this first lens is convex surface;
There are the second lens of focal power, these the second lens be convex surface as side;
There are the 3rd lens of negative power;
There are the 4th lens of negative power, the 4th lens be aspheric surface as side;
There are the 5th lens of focal power, the 5th lens be convex surface as side;
This telephoto lens meets following relationship: 0.75 < TTL/f < 1.0;
Wherein, the thing side that TTL is this first lens is to distance on the axle of imaging surface; F is effective Jiao of this telephoto lensDistance.
2. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
-0.5<R1/R4<0；
Wherein, the radius of curvature of the thing side that R1 is this first lens, R4 is the curvature half of the picture side of these the second lensFootpath.
3. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
-1.0<f12/f3<-0.5；
Wherein, f12 is the synthetic focal length of this first lens and these the second lens, and f3 is the effective focal length of the 3rd lens.
4. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
1.0<(CT1+CT2)/CT5<1.5；
Wherein, the center thickness that CT1 is this first lens, CT2 is the center thickness of these the second lens, CT5 is the 5thThe center thickness of lens.
5. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
-1.0<f3/f<0；
-2.0<f4/f<-0.5；
Wherein, f3 is the effective focal length of the 3rd lens, and f4 is the effective focal length of the 4th lens.
6. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
0<R1/R6<1.0；
Wherein, the radius of curvature of the thing side that R1 is this first lens, R6 is the curvature half of the picture side of the 3rd lensFootpath.
7. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
|(R5+R6)/(R5-R6)|≦0.2；
Wherein, R5 is the radius of curvature of the thing side of the 3rd lens, and R6 is the curvature half of the picture side of the 3rd lensFootpath.
8. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
0<Dr1r6/TTL<0.5；
Wherein, the thing side that Dr1r6 is this first lens is to the distance on the axle of side that looks like of the 3rd lens.
9. telephoto lens as claimed in claim 1, is characterized in that, this telephoto lens meets following relationship:
-2.5<f45/f<-1.0；
Wherein, f45 is the synthetic focal length of the 4th lens and the 5th lens.
10. telephoto lens as claimed in claim 1, is characterized in that, these second lens have positive light coke, and this is taken the photographCamera lens far away meets following relationship: 0.9 < f2/R3 < 2.0;
Wherein, f2 is the effective focal length of these the second lens, and R3 is the radius of curvature of the thing side of these the second lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164828.XA CN105607232B (en) | 2016-03-22 | 2016-03-22 | Telephoto lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164828.XA CN105607232B (en) | 2016-03-22 | 2016-03-22 | Telephoto lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105607232A true CN105607232A (en) | 2016-05-25 |
| CN105607232B CN105607232B (en) | 2018-05-29 |
Family
ID=55987286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610164828.XA Active CN105607232B (en) | 2016-03-22 | 2016-03-22 | Telephoto lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607232B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9989741B1 (en) | 2017-02-08 | 2018-06-05 | Largan Precision Co., Ltd. | Photographing optical lens assembly, image capturing unit and electronic device |
| CN108241201A (en) * | 2016-12-23 | 2018-07-03 | 三星电机株式会社 | Optical imaging system |
| TWI678571B (en) * | 2019-04-10 | 2019-12-01 | 新鉅科技股份有限公司 | Five-piece optical lens system with a wide field of view |
| TWI679453B (en) * | 2018-12-10 | 2019-12-11 | 大陸商信泰光學（深圳）有限公司 | Lens assembly |
| TWI716641B (en) * | 2017-09-29 | 2021-01-21 | 大陸商信泰光學（深圳）有限公司 | Lens assembly |
| WO2021138754A1 (en) * | 2020-01-06 | 2021-07-15 | 江西晶超光学有限公司 | Optical system, photographing module, and electronic device |
| JP2021135476A (en) * | 2020-02-24 | 2021-09-13 | エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド | Imaging optical lens |
| US11428902B2 (en) | 2018-12-10 | 2022-08-30 | Sintai Optical (Shenzhen) Co., Ltd. | Lens assembly comprising five lenses of ++−−+ refractive powers |
| US11609407B2 (en) | 2019-03-27 | 2023-03-21 | Tokyo Visionary Optics Co., Ltd. | Imaging lens |
| US11953756B2 (en) | 2019-08-15 | 2024-04-09 | Jiangxi Ofilm Optical Co., Ltd. | Optical system, image capturing module and electronic device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259216A (en) * | 1985-05-13 | 1986-11-17 | Canon Inc | Compact zoom lens |
| JPS62153909A (en) * | 1985-12-27 | 1987-07-08 | Canon Inc | Optical system |
| JP2004070093A (en) * | 2002-08-08 | 2004-03-04 | Fuji Photo Optical Co Ltd | Objective lens for night vision and night vision system |
| JP2004126472A (en) * | 2002-10-07 | 2004-04-22 | Nikon Corp | Telephotographic lens |
| US20060056066A1 (en) * | 2004-08-25 | 2006-03-16 | Pentax Corporation | Telephoto lens system |
| CN204143050U (en) * | 2013-10-31 | 2015-02-04 | 苹果公司 | Small-shape factor takes the photograph camera far away, telephoto lens system and relevant device |
| US20150260965A1 (en) * | 2014-03-17 | 2015-09-17 | Canon Kabushiki Kaisha | Multi-lens optical apparatus |
| CN205485021U (en) * | 2016-03-22 | 2016-08-17 | 浙江舜宇光学有限公司 | Telephoto lens |
-
2016
- 2016-03-22 CN CN201610164828.XA patent/CN105607232B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259216A (en) * | 1985-05-13 | 1986-11-17 | Canon Inc | Compact zoom lens |
| JPS62153909A (en) * | 1985-12-27 | 1987-07-08 | Canon Inc | Optical system |
| JP2004070093A (en) * | 2002-08-08 | 2004-03-04 | Fuji Photo Optical Co Ltd | Objective lens for night vision and night vision system |
| JP2004126472A (en) * | 2002-10-07 | 2004-04-22 | Nikon Corp | Telephotographic lens |
| US20060056066A1 (en) * | 2004-08-25 | 2006-03-16 | Pentax Corporation | Telephoto lens system |
| CN204143050U (en) * | 2013-10-31 | 2015-02-04 | 苹果公司 | Small-shape factor takes the photograph camera far away, telephoto lens system and relevant device |
| US20150116569A1 (en) * | 2013-10-31 | 2015-04-30 | Apple Inc. | Small form factor telephoto camera |
| US20150260965A1 (en) * | 2014-03-17 | 2015-09-17 | Canon Kabushiki Kaisha | Multi-lens optical apparatus |
| CN205485021U (en) * | 2016-03-22 | 2016-08-17 | 浙江舜宇光学有限公司 | Telephoto lens |
Non-Patent Citations (1)
| Title |
|---|
| 李圣怡等: "《大中型光学非球面镜制造与测量新技术》", 31 August 2011, 国防工业出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10976525B2 (en) | 2016-12-23 | 2021-04-13 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| CN108241201A (en) * | 2016-12-23 | 2018-07-03 | 三星电机株式会社 | Optical imaging system |
| US11899177B2 (en) | 2016-12-23 | 2024-02-13 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| US10823939B2 (en) | 2016-12-23 | 2020-11-03 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| CN108241201B (en) * | 2016-12-23 | 2020-12-25 | 三星电机株式会社 | Optical imaging system |
| US9989741B1 (en) | 2017-02-08 | 2018-06-05 | Largan Precision Co., Ltd. | Photographing optical lens assembly, image capturing unit and electronic device |
| TWI716641B (en) * | 2017-09-29 | 2021-01-21 | 大陸商信泰光學（深圳）有限公司 | Lens assembly |
| TWI679453B (en) * | 2018-12-10 | 2019-12-11 | 大陸商信泰光學（深圳）有限公司 | Lens assembly |
| US11428902B2 (en) | 2018-12-10 | 2022-08-30 | Sintai Optical (Shenzhen) Co., Ltd. | Lens assembly comprising five lenses of ++−−+ refractive powers |
| US11609407B2 (en) | 2019-03-27 | 2023-03-21 | Tokyo Visionary Optics Co., Ltd. | Imaging lens |
| US11808924B2 (en) | 2019-03-27 | 2023-11-07 | Tokyo Visionary Optics Co., Ltd. | Imaging lens |
| TWI678571B (en) * | 2019-04-10 | 2019-12-01 | 新鉅科技股份有限公司 | Five-piece optical lens system with a wide field of view |
| US11953756B2 (en) | 2019-08-15 | 2024-04-09 | Jiangxi Ofilm Optical Co., Ltd. | Optical system, image capturing module and electronic device |
| WO2021138754A1 (en) * | 2020-01-06 | 2021-07-15 | 江西晶超光学有限公司 | Optical system, photographing module, and electronic device |
| JP2021135476A (en) * | 2020-02-24 | 2021-09-13 | エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド | Imaging optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105607232B (en) | 2018-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105607232A (en) | Telephoto lens | |
| CN105974561B (en) | Wide-angle camera | |
| CN203606554U (en) | Imaging lens and imaging device provided with imaging lens | |
| CN105572848A (en) | Telephoto lens | |
| CN203595858U (en) | Imaging lens and imaging device comprising same | |
| CN104166220B (en) | The interactive camera lens of 3D | |
| CN205049802U (en) | Ultra wide -angle lens | |
| CN203773129U (en) | Imaging lens and imaging device comprising the same | |
| CN203773143U (en) | Imaging lens and imaging apparatus comprising same | |
| CN105204144A (en) | Super-wide-angle lens | |
| CN105759406A (en) | Camera lens | |
| CN109828354B (en) | Image pickup optical lens | |
| CN103502868A (en) | Imaging lens and imaging device provided with imaging lens | |
| CN105093491A (en) | Image capturing optical lens, image capturing device and mobile terminal | |
| CN105022145A (en) | Image capturing optical system, image capturing device and mobile terminal | |
| CN104516094A (en) | Wide angle optical lens system | |
| CN104635320B (en) | Small-sized imaging lens system | |
| CN104678537A (en) | Camera lens group, image capturing device and portable device | |
| CN103576296A (en) | Pick-up lens | |
| CN106154510A (en) | Optical system | |
| CN105824102A (en) | Pick-up lens and portable electronic apparatus | |
| CN205049806U (en) | Telephoto lens | |
| CN105607233A (en) | Telephoto lens | |
| CN103576297A (en) | Pick-up lens | |
| CN105259636A (en) | Long focal length 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |