CN106405794B - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
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- CN106405794B CN106405794B CN201610791003.0A CN201610791003A CN106405794B CN 106405794 B CN106405794 B CN 106405794B CN 201610791003 A CN201610791003 A CN 201610791003A CN 106405794 B CN106405794 B CN 106405794B
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- 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
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Abstract
The present invention provides a kind of optical imaging system, successively includes by object side to image side: the first lens with refracting power；The second lens with positive refracting power, image side surface are convex surface；The third lens with refracting power, object side are convex surface, and image side surface is concave surface；The 4th lens with refracting power, image side surface are convex surface；The 5th lens with positive refracting power, image side surface are convex surface；The 6th lens with negative refracting power, object side are convex surface, and image side surface is concave surface；Meet following relationship: 1.9 < f2/f < 2.5 simultaneously, wherein f2 is the effective focal length of the second lens, and f is the effective focal length of optical imaging system.Optical imaging system of the present invention can realize the miniaturization of system while realizing big field angle, high image quality.
Description
Technical field
The present invention relates to a kind of optical imaging systems, the optical imagery system for the high image quality being especially made of six eyeglasses
System.
Background technique
In recent years, especially portable with camera function with the development of science and technology, portable electronic product gradually rises
Formula electronic product, which obtains people, more to be favored.The photosensitive element of general optical system is nothing more than being photosensitive coupling element (CCD)
Or two kinds of Complimentary Metal-Oxide semiconductor element (CMOS), with progressing greatly for manufacture of semiconductor technology, optical system is intended to
The Pixel Dimensions of higher pixel, chip are smaller and smaller, require the image quality of the optical system to match also higher and higher.
The patent of Patent No. " CN104252031A " proposes a kind of lens module.The camera lens uses six chip camera lens knots
Structure improves aberration improvement, realizes high-resolution.But the field angle of the optical system is respectively less than 80 degree, wide angle and height
, still there is the space that can be advanced optimized in the characteristics of image quality, to meet market for the requirements at the higher level of optical imaging system.
Summary of the invention
Therefore the present invention is intended to provide a kind of be not only able to satisfy larger field angle, but also it can guarantee the optical imagery of high image quality
System.
The present invention provides a kind of optical imaging system, successively includes by object side to image side: the first lens with refracting power；
The second lens with positive refracting power, image side surface are convex surface；The third lens with refracting power, object side are convex surface, as
Side is concave surface；The 4th lens with refracting power, image side surface are convex surface；The 5th lens with positive refracting power, image side
Face is convex surface；The 6th lens with negative refracting power, object side are convex surface, and image side surface is concave surface；Meet relational expression simultaneously:
1.9 < f2/f < 2.5, wherein f2 is the effective focal length of the second lens, and f is the effective focal length of optical imaging system.It is of the present invention
Optical imaging system, can realize the miniaturization of system while realizing big field angle, high image quality.
Further, optical imaging system of the present invention meets relational expression: -1.5 < f6/f < -0.5, wherein f6 is
The effective focal length of 6th lens, f are the effective focal length of optical imaging system.By the 6th power of lens of reasonable disposition, have
Conducive to the color difference and monochromatic aberration of correction system, the balance of various aberrations is realized.
Further, optical imaging system of the present invention meets relational expression: 20 < V6 < 60, wherein V6 is the 6th saturating
The Abbe number of mirror.Meeting above-mentioned relation formula may be implemented being replaced mutually for different optical materials, can be effectively to system color difference
Do preferable correction.
Further, optical imaging system of the present invention meets relational expression: 0.8 < CT2/CT4 < 1.3, wherein CT2
For center thickness of second lens on optical axis, CT4 is center thickness of the 4th lens on optical axis.This design is conducive to control
The size for making the optical system structure guarantees the demand of miniaturization.
Further, optical imaging system of the present invention meets relational expression: 0.5 < R8/R9 < 1, wherein R8 is the 4th
The radius of curvature of lens image side surface；R9 is the radius of curvature of the 5th lens object side.Cooperated by the 4th lens, the 5th lens,
The aberration control for being conducive to optical system can obtain lesser distortion in the case where wide-angle.
Further, optical imaging system of the present invention meets following relationship:
0.3<SAG51/SAG52<0.8；- 0.8 < SAG61 × 10/TTL < -0.25, wherein SAG51 is the 5th lens object side
Distance on the intersection point of face and optical axis to the axis between the effective radius vertex of the first lens object side；SAG52 is the 5th lens picture
Distance on the intersection point of side and optical axis to the axis between the effective radius vertex of the first lens object side；SAG61 is the 6th lens
Distance on the intersection point of object side and optical axis to the axis between the effective radius vertex of the first lens object side；TTL is the first lens
Distance on object side to the axis of imaging surface.This design is advantageously implemented the wide angle demand of the camera lens, and at the same time ensure compared with
High image quality.
Further, optical imaging system of the present invention meets following relationship: 1 < DT11/DT32 < 1.5；0.9<
DT11/DT41 < 1.4, wherein DT11 is the effective radius of the first lens object side；DT32 is the effective of the third lens image side surface
Radius；DT41 is the effective radius of the 4th lens object side.This design is conducive to control the size of the optical system structure, protects
Demonstrate,prove the demand of miniaturization.
Further, optical imaging system of the present invention meets following relationship: 0.7 < T23/T34 < 1.5；0.1<
T12/TTL < 0.2, wherein T23 is spacing distance on the second lens and the axis of the third lens；T34 is that the third lens and the 4th are saturating
Spacing distance on the axis of mirror；T12 is spacing distance on the axis of the first lens and the second lens；TTL be the first lens object side extremely
Distance on the axis of imaging surface.This design is conducive to control the size of the optical system structure, guarantees the demand of miniaturization, and protects
Card can obtain preferable image quality and performance.
Further, optical imaging system of the present invention meets relational expression: 1.0 < ImgH/f < 1.5, wherein ImgH
For the half of electronics light sensitive component effective pixel area diagonal line length；F is the effective focal length of optical imaging system.In optical imagery
In system, under same image height, focal length is too long to mean then biggish barrel distortion, and too short there will be poor craftsmanships, and are not easy
The brightness for guaranteeing edge image planes, meets above formula and has combined distortion, image quality and manufacturability.
Further, in optical imaging system of the present invention, the third lens have negative power, and the 4th lens have
Positive light coke.
Beneficial effects of the present invention are to use 6 plastic aspherical element eyeglasses, pass through the light focus of six eyeglasses of reasonable distribution
Degree and the collocation of face type, effectively increase the visual angle of optical imaging lens, guarantee lesser distortion, improve aberration improvement.
The present invention is described further with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical imaging system described in embodiment one；
Fig. 2 is chromaticity difference diagram on the axis of optical imaging system described in embodiment one；
Fig. 3 is the astigmatism figure of optical imaging system described in embodiment one；
Fig. 4 is the distortion figure of optical imaging system described in embodiment one；
Fig. 5 is the magnification chromatic aberration diagram of optical imaging system described in embodiment one；
Fig. 6 is the structural schematic diagram of optical imaging system described in embodiment two；
Fig. 7 is chromaticity difference diagram on the axis of optical imaging system described in embodiment two；
Fig. 8 is the astigmatism figure of optical imaging system described in embodiment two；
Fig. 9 is the distortion figure of optical imaging system described in embodiment two；
Figure 10 is the magnification chromatic aberration diagram of optical imaging system described in embodiment two；
Figure 11 is the structural schematic diagram of optical imaging system described in embodiment three；
Figure 12 is chromaticity difference diagram on the axis of optical imaging system described in embodiment three；
Figure 13 is the astigmatism figure of optical imaging system described in embodiment three；
Figure 14 is the distortion figure of optical imaging system described in embodiment three；
Figure 15 is the magnification chromatic aberration diagram of optical imaging system described in embodiment three；
Figure 16 is the structural schematic diagram of optical imaging system described in example IV；
Figure 17 is chromaticity difference diagram on the axis of optical imaging system described in example IV；
Figure 18 is the astigmatism figure of optical imaging system described in example IV；
Figure 19 is the distortion figure of optical imaging system described in example IV；
Figure 20 is the magnification chromatic aberration diagram of optical imaging system described in example IV；
Figure 21 is the structural schematic diagram of optical imaging system described in embodiment five；
Figure 22 is chromaticity difference diagram on the axis of optical imaging system described in embodiment five；
Figure 23 is the astigmatism figure of optical imaging system described in embodiment five；
Figure 24 is the distortion figure of optical imaging system described in embodiment five；
Figure 25 is the magnification chromatic aberration diagram of optical imaging system described in embodiment five；
Figure 26 is the structural schematic diagram of optical imaging system described in embodiment six；
Figure 27 is chromaticity difference diagram on the axis of optical imaging system described in embodiment six；
Figure 28 is the astigmatism figure of optical imaging system described in embodiment six；
Figure 29 is the distortion figure of optical imaging system described in embodiment six；
Figure 30 is the magnification chromatic aberration diagram of optical imaging system described in embodiment six；
Figure 31 is the structural schematic diagram of optical imaging system described in embodiment seven；
Figure 32 is chromaticity difference diagram on the axis of optical imaging system described in embodiment seven；
Figure 33 is the astigmatism figure of optical imaging system described in embodiment seven；
Figure 34 is the distortion figure of optical imaging system described in embodiment seven；
Figure 35 is the magnification chromatic aberration diagram of optical imaging system described in embodiment seven；
Figure 36 is the structural schematic diagram of optical imaging system described in embodiment eight；
Figure 37 is chromaticity difference diagram on the axis of optical imaging system described in embodiment eight；
Figure 38 is the astigmatism figure of optical imaging system described in embodiment eight；
Figure 39 is the distortion figure of optical imaging system described in embodiment eight；
Figure 40 is the magnification chromatic aberration diagram of optical imaging system described in embodiment eight.
Specific embodiment
Embodiment one:
Referring to Fig. 1, optical imaging system described in the present embodiment successively includes: with negative refracting power from object side to image side
The first lens L1；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14, optical imaging system imaging surface S15 described in the present embodiment are located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 1:
Table 1
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment see the table below 2:
Table 2
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 3:
Table 3
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.0529E-01 | -3.3662E-02 | 1.4571E-02 | 1.1207E-02 | -1.6434E-02 | 8.2321E-03 | -1.4278E-03 |
| S2 | 1.9113E-01 | -1.8016E-01 | 4.3863E-01 | -6.9249E-01 | 6.7662E-01 | -3.3203E-01 | 6.0202E-02 |
| S3 | -4.1740E-02 | -3.4298E-01 | 2.5125E+00 | -1.4204E+01 | 4.2664E+01 | -6.7264E+01 | 4.1770E+01 |
| S4 | -2.7412E-01 | 3.6482E-01 | -5.3325E-01 | 3.2780E-01 | 4.6950E-02 | -2.1819E-01 | 3.4987E-02 |
| S5 | -2.9374E-01 | 2.1919E-01 | -3.1327E-01 | 4.3812E-01 | -3.8561E-01 | 2.3767E-01 | -6.9967E-02 |
| S6 | 1.5934E-02 | -2.5050E-01 | 4.4711E-01 | -4.5406E-01 | 2.6011E-01 | -7.0855E-02 | 6.2557E-03 |
| S7 | 1.9364E-01 | -2.9619E-01 | 4.9278E-01 | -5.3574E-01 | 3.3673E-01 | -1.0986E-01 | 1.4155E-02 |
| S8 | 7.2951E-03 | -7.8742E-03 | 2.6424E-02 | -3.0727E-02 | 2.0441E-02 | -6.7888E-03 | 9.5261E-04 |
| S9 | 4.3549E-03 | -2.9599E-02 | 5.8066E-02 | -4.9059E-02 | 2.0663E-02 | -3.4530E-03 | 6.5928E-05 |
| S10 | 1.1011E-01 | -2.6611E-01 | 3.4373E-01 | -2.8922E-01 | 1.5830E-01 | -4.5669E-02 | 5.1011E-03 |
| S11 | -1.6819E-01 | 9.4613E-02 | -9.3390E-02 | 5.9714E-02 | -2.1415E-02 | 4.0211E-03 | -3.0380E-04 |
| S12 | -1.1062E-01 | 2.9354E-02 | -4.4307E-03 | 2.0758E-04 | 5.9174E-05 | -1.5356E-05 | 1.1986E-06 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 2- Fig. 5, and while realizing miniaturization
Property.
Embodiment two:
Referring to Fig. 6, optical imaging system described in the present embodiment successively includes: with negative refracting power from object side to image side
The first lens L1；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 4:
Table 4
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -87.65 |
| The effective focal length of second lens: f2 (mm) | 6.24 |
| The effective focal length of the third lens: f3 (mm) | -46.70 |
| The effective focal length of 4th lens: f4 (mm) | 6.92 |
| The effective focal length of 5th lens: f5 (mm) | 2.70 |
| The effective focal length of 6th lens: f6 (mm) | -3.00 |
| The effective focal length of optical imaging system: f (mm) | 2.77 |
| Stop value: Fno | 2.33 |
| Angle of half field-of view: HFOV (°) | 44.63 |
| f2/f | 2.257 |
| f6/f | -1.083 |
| V6 | 23.531 |
| CT2/CT4 | 0.909 |
| R8/R9 | 0.978 |
| SAG51/SAG52 | 0.617 |
| SAG61×10/TTL | -0.456 |
| DT11/DT32 | 1.050 |
| DT11/DT41 | 1.319 |
| T23/T34 | 0.754 |
| T12/TTL | 0.150 |
| ImgH/f | 1.114 |
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment see the table below 5:
Table 5
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | It is infinite | It is infinite | ||
| S1 | It is aspherical | 17.1590 | 0.5329 | 1.54/56.1 | -40.5109 |
| S2 | It is aspherical | 12.4917 | 0.7784 | -48.6650 | |
| STO | Spherical surface | It is infinite | 0.1554 | ||
| S3 | It is aspherical | 104.5845 | 0.6176 | 1.54/56.1 | 99.0000 |
| S4 | It is aspherical | -3.5164 | 0.1208 | 10.6787 | |
| S5 | It is aspherical | 3.3661 | 0.4085 | 1.64/23.5 | -6.6138 |
| S6 | It is aspherical | 2.8836 | 0.1603 | -5.0602 | |
| S7 | It is aspherical | -6.9000 | 0.6796 | 1.54/56.1 | -2.8651 |
| S8 | It is aspherical | -2.5256 | 0.1825 | -0.7293 | |
| S9 | It is aspherical | -2.5812 | 0.5802 | 1.54/56.1 | 0.0641 |
| S10 | It is aspherical | -1.0139 | 0.1275 | -1.7593 | |
| S11 | It is aspherical | 1.2193 | 0.3457 | 1.64/23.5 | -3.7228 |
| S12 | It is aspherical | 0.6644 | 0.7501 | -2.8042 | |
| S13 | Spherical surface | It is infinite | 0.2100 | 1.62/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5752 | ||
| S15 | Spherical surface | It is infinite |
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 6:
Table 6
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.7097E-02 | -3.2463E-02 | 2.7307E-02 | -1.4472E-02 | 5.1401E-03 | -8.1496E-04 | 3.6498E-05 |
| S2 | 1.4617E-01 | -9.5449E-02 | 1.8179E-01 | -2.2378E-01 | 1.8346E-01 | -7.8183E-02 | 1.2734E-02 |
| S3 | -4.4495E-02 | -1.1934E-01 | 6.3226E-01 | -3.5680E+00 | 9.8028E+00 | -1.4330E+01 | 8.0306E+00 |
| S4 | -2.1294E-01 | 1.9453E-01 | -2.4036E-01 | 3.3207E-01 | -4.9317E-01 | 3.7907E-01 | -1.3140E-01 |
| S5 | -2.2314E-01 | 6.1421E-02 | -3.2941E-02 | 1.6514E-01 | -2.5641E-01 | 1.8364E-01 | -4.9002E-02 |
| S6 | 2.0748E-02 | -2.0551E-01 | 3.1075E-01 | -2.6240E-01 | 1.2510E-01 | -2.8643E-02 | 2.1440E-03 |
| S7 | 1.4214E-01 | -1.4329E-01 | 1.8395E-01 | -1.7208E-01 | 9.4339E-02 | -2.6217E-02 | 2.7435E-03 |
| S8 | 1.2151E-02 | -2.7611E-02 | 6.5181E-02 | -7.2774E-02 | 4.2997E-02 | -1.2605E-02 | 1.4831E-03 |
| S9 | 6.0096E-03 | -4.9850E-02 | 1.0781E-01 | -1.1185E-01 | 6.2940E-02 | -1.8037E-02 | 2.0656E-03 |
| S10 | 1.0433E-01 | -2.3104E-01 | 2.6859E-01 | -1.9469E-01 | 8.8669E-02 | -2.1364E-02 | 2.0189E-03 |
| S11 | -1.4689E-01 | 4.4800E-02 | -2.6405E-02 | 1.4898E-02 | -5.4355E-03 | 1.0825E-03 | -8.5630E-05 |
| S12 | -1.1653E-01 | 3.9823E-02 | -9.9915E-03 | 1.5598E-03 | -1.2754E-04 | 1.8387E-06 | 2.9440E-07 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 7- Figure 10, and while realizing miniaturization
Property.
Embodiment three:
Figure 11 is please referred to, optical imaging system described in the present embodiment successively includes: with negative flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 7:
Table 7
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -85.95 |
| The effective focal length of second lens: f2 (mm) | 6.20 |
| The effective focal length of the third lens: f3 (mm) | -32.71 |
| The effective focal length of 4th lens: f4 (mm) | 6.64 |
| The effective focal length of 5th lens: f5 (mm) | 2.53 |
| The effective focal length of 6th lens: f6 (mm) | -2.76 |
| The effective focal length of optical imaging system: f (mm) | 2.69 |
| Stop value: Fno | 2.40 |
| Angle of half field-of view: HFOV (°) | 45.86 |
| f2/f | 2.305 |
| f6/f | -1.027 |
| V6 | 23.531 |
| CT2/CT4 | 0.929 |
| R8/R9 | 0.939 |
| SAG51/SAG52 | 0.576 |
| SAG61×10/TTL | -0.579 |
| DT11/DT32 | 1.170 |
| DT11/DT41 | 1.109 |
| T23/T34 | 0.814 |
| T12/TTL | 0.154 |
| ImgH/f | 1.147 |
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment see the table below 8:
Table 8
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | It is infinite | It is infinite | ||
| S1 | It is aspherical | 22.1490 | 0.5315 | 1.54/56.1 | -68.5667 |
| S2 | It is aspherical | 14.9190 | 0.7811 | -85.9314 | |
| STO | Spherical surface | It is infinite | 0.1630 | ||
| S3 | It is aspherical | 114.1572 | 0.6143 | 1.54/56.1 | -99.0000 |
| S4 | It is aspherical | -3.4800 | 0.1183 | 10.6986 | |
| S5 | It is aspherical | 3.4198 | 0.4039 | 1.64/23.5 | -7.1117 |
| S6 | It is aspherical | 2.8064 | 0.1454 | -4.9847 | |
| S7 | It is aspherical | -7.3211 | 0.6614 | 1.54/56.1 | -0.8957 |
| S8 | It is aspherical | -2.5017 | 0.2009 | -0.7245 | |
| S9 | It is aspherical | -2.6635 | 0.5579 | 1.54/56.1 | 0.0428 |
| S10 | It is aspherical | -0.9757 | 0.1268 | -1.7364 | |
| S11 | It is aspherical | 1.3139 | 0.3622 | 1.64/23.5 | -4.2809 |
| S12 | It is aspherical | 0.6744 | 0.7213 | -2.9063 | |
| S13 | Spherical surface | It is infinite | 0.2100 | 1.62/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5461 | ||
| S15 | Spherical surface | It is infinite |
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 9:
Table 9
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 12- Figure 15, and while realizing miniaturization
Property.
Example IV:
Figure 16 is please referred to, optical imaging system described in the present embodiment successively includes: with negative flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 10:
Table 10
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment be see the table below
11:
Table 11
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | It is infinite | It is infinite | ||
| S1 | It is aspherical | 59.0443 | 0.5052 | 1.54/56.1 | -235.9182 |
| S2 | It is aspherical | 17.5188 | 0.7895 | -125.0980 | |
| STO | Spherical surface | It is infinite | 0.1277 | ||
| S3 | It is aspherical | 163.8062 | 0.6119 | 1.54/56.1 | -179054.6000 |
| S4 | It is aspherical | -3.4206 | 0.1379 | 10.5935 | |
| S5 | It is aspherical | 3.6347 | 0.3503 | 1.64/23.5 | -7.8759 |
| S6 | It is aspherical | 2.8812 | 0.1266 | -4.7655 | |
| S7 | It is aspherical | -7.9443 | 0.6628 | 1.54/56.1 | 5.5180 |
| S8 | It is aspherical | -2.4725 | 0.0787 | -0.6224 | |
| S9 | It is aspherical | -2.9247 | 0.6381 | 1.54/56.1 | -0.1771 |
| S10 | It is aspherical | -0.9745 | 0.1929 | -1.6758 | |
| S11 | It is aspherical | 1.7833 | 0.4030 | 1.64/23.5 | -4.8746 |
| S12 | It is aspherical | 0.7581 | 0.7432 | -3.3203 | |
| S13 | Spherical surface | It is infinite | 0.2100 | 1.62/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5680 | ||
| S15 | Spherical surface | It is infinite |
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 12:
Table 12
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.2990E-02 | -2.2285E-02 | 1.2406E-02 | -4.2673E-03 | 1.8415E-03 | -6.1802E-04 | 1.2502E-04 |
| S2 | 1.3047E-01 | -2.3940E-02 | -3.0517E-02 | 1.2806E-01 | -1.5067E-01 | 8.7339E-02 | -1.9626E-02 |
| S3 | -6.3186E-02 | -1.4414E-01 | 6.7323E-01 | -3.8005E+00 | 1.1111E+01 | -1.7923E+01 | 1.1273E+01 |
| S4 | -1.9931E-01 | 4.7829E-02 | 2.5870E-01 | -6.5093E-01 | 7.0714E-01 | -4.3640E-01 | 9.8643E-02 |
| S5 | -2.0279E-01 | -1.0988E-01 | 3.4252E-01 | -2.3014E-01 | -1.3720E-02 | 8.8821E-02 | -2.9999E-02 |
| S6 | 4.1945E-02 | -2.9067E-01 | 4.6014E-01 | -4.0091E-01 | 2.0399E-01 | -5.6372E-02 | 6.6286E-03 |
| S7 | 1.2920E-01 | -7.5678E-02 | 2.9007E-02 | -1.3211E-02 | 1.0241E-02 | -3.6600E-03 | 3.3091E-04 |
| S8 | -2.1307E-02 | 7.9934E-02 | -7.6082E-02 | 1.9498E-02 | 1.1912E-02 | -7.7135E-03 | 1.2477E-03 |
| S9 | -8.1843E-03 | 3.2620E-02 | -2.1533E-02 | -2.8403E-02 | 4.6578E-02 | -2.1828E-02 | 3.4100E-03 |
| S10 | 1.3913E-01 | -3.0026E-01 | 3.4240E-01 | -2.5338E-01 | 1.1766E-01 | -2.8850E-02 | 2.7872E-03 |
| S11 | -1.5683E-01 | 2.5798E-02 | 1.4655E-02 | -9.6201E-03 | 1.0169E-03 | 3.4298E-04 | -5.9400E-05 |
| S12 | -1.2692E-01 | 5.6521E-02 | -1.7360E-02 | 3.0581E-03 | -2.8129E-04 | 8.1301E-06 | 3.8237E-07 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 17- Figure 20, and while realizing miniaturization
Property.
Embodiment five:
Figure 21 is please referred to, optical imaging system described in the present embodiment successively includes: with negative flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface；
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 13:
Table 13
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment be see the table below
14:
Table 14
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 15:
Table 15
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 5.0094E-02 | -1.0454E-02 | 4.5239E-03 | -1.3197E-03 | 3.9176E-04 | -8.1785E-05 | 9.9241E-06 |
| S2 | 7.3608E-02 | -1.1135E-02 | -4.2459E-03 | 1.8308E-02 | -1.5231E-02 | 6.0691E-03 | -9.2542E-04 |
| S3 | -4.8271E-02 | -4.0967E-02 | -9.2518E-03 | 1.7070E-01 | -6.6673E-01 | 8.1998E-01 | -3.7631E-01 |
| S4 | -1.1115E-01 | -2.0804E-03 | 9.4295E-02 | -1.1165E-01 | 5.0794E-02 | -1.1909E-02 | 4.7828E-04 |
| S5 | -1.1027E-01 | -8.4084E-02 | 1.1928E-01 | -1.0489E-02 | -4.6433E-02 | 2.5871E-02 | -4.1996E-03 |
| S6 | 3.8177E-02 | -1.6049E-01 | 1.8061E-01 | -1.1161E-01 | 4.0844E-02 | -8.3187E-03 | 7.3291E-04 |
| S7 | 8.2637E-02 | -4.0787E-02 | 2.0107E-02 | -1.6373E-02 | 9.6487E-03 | -2.6323E-03 | 2.5933E-04 |
| S8 | -1.9723E-02 | 5.3519E-02 | -5.3271E-02 | 2.8704E-02 | -8.6299E-03 | 1.4009E-03 | -9.4505E-05 |
| S9 | -4.9767E-03 | 1.9849E-02 | -1.0223E-02 | -8.8275E-03 | 1.0455E-02 | -3.5075E-03 | 3.9326E-04 |
| S10 | 7.4800E-02 | -1.1919E-01 | 1.0476E-01 | -5.8308E-02 | 1.9455E-02 | -3.3482E-03 | 2.2552E-04 |
| S11 | -1.1250E-01 | 3.0419E-02 | -2.9703E-03 | -1.5969E-03 | 5.7945E-04 | -6.6362E-05 | 2.4286E-06 |
| S12 | -7.9003E-02 | 2.9658E-02 | -8.3968E-03 | 1.4802E-03 | -1.5879E-04 | 9.4230E-06 | -2.2814E-07 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 22- Figure 25, and while realizing miniaturization
Property.
Embodiment six:
Figure 26 is please referred to, optical imaging system described in the present embodiment successively includes: with negative flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 16:
Table 16
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -54.80 |
| The effective focal length of second lens: f2 (mm) | 6.23 |
| The effective focal length of the third lens: f3 (mm) | -34.45 |
| The effective focal length of 4th lens: f4 (mm) | 7.44 |
| The effective focal length of 5th lens: f5 (mm) | 2.53 |
| The effective focal length of 6th lens: f6 (mm) | -2.53 |
| The effective focal length of optical imaging system: f (mm) | 3.00 |
| Stop value: Fno | 2.52 |
| Angle of half field-of view: HFOV (°) | 45.20 |
| f2/f | 2.077 |
| f6/f | -0.844 |
| V6 | 23.531 |
| CT2/CT4 | 0.908 |
| R8/R9 | 0.898 |
| SAG51/SAG52 | 0.491 |
| SAG61×10/TTL | -0.620 |
| DT11/DT32 | 1.164 |
| DT11/DT41 | 1.128 |
| T23/T34 | 0.825 |
| T12/TTL | 0.139 |
| ImgH/f | 1.028 |
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment be see the table below
17:
Table 17
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | It is infinite | It is infinite | ||
| S1 | It is aspherical | 19.6529 | 0.5154 | 1.54/56.1 | -99.0000 |
| S2 | It is aspherical | 11.7515 | 0.7431 | -59.5676 | |
| STO | Spherical surface | It is infinite | 0.1395 | ||
| S3 | It is aspherical | 105.6417 | 0.6162 | 1.54/56.1 | -99.0000 |
| S4 | It is aspherical | -3.5078 | 0.1367 | 10.6443 | |
| S5 | It is aspherical | 3.1756 | 0.3900 | 1.64/23.5 | -6.8948 |
| S6 | It is aspherical | 2.6445 | 0.1657 | -4.8336 | |
| S7 | It is aspherical | -6.4328 | 0.6789 | 1.54/56.1 | -0.6130 |
| S8 | It is aspherical | -2.5816 | 0.1388 | -0.7064 | |
| S9 | It is aspherical | -2.8752 | 0.5941 | 1.54/56.1 | -0.0146 |
| S10 | It is aspherical | -1.0007 | 0.1912 | -1.7296 | |
| S11 | It is aspherical | 1.6043 | 0.3641 | 1.64/23.5 | -4.7477 |
| S12 | It is aspherical | 0.7370 | 0.8181 | -3.1957 | |
| S13 | Spherical surface | It is infinite | 0.2100 | 1.62/64.2 | |
| S14 | Spherical surface | It is infinite | 0.6432 | ||
| S15 | Spherical surface | It is infinite |
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 18:
Table 18
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.1171E-02 | -2.1827E-02 | 1.3843E-02 | -4.2914E-03 | 6.3704E-04 | 2.0769E-04 | -5.1570E-05 |
| S2 | 1.3674E-01 | -5.1197E-02 | 6.3366E-02 | -2.7649E-02 | -7.0979E-03 | 2.0945E-02 | -8.3697E-03 |
| S3 | -4.9759E-02 | -7.6765E-02 | 1.7669E-01 | -1.2845E+00 | 3.6878E+00 | -5.7229E+00 | 3.0423E+00 |
| S4 | -2.1253E-01 | 1.9495E-01 | -2.8037E-01 | 3.7125E-01 | -4.1101E-01 | 2.6063E-01 | -9.3728E-02 |
| S5 | -2.1653E-01 | 4.9448E-02 | -5.4702E-02 | 1.9402E-01 | -2.2201E-01 | 1.2615E-01 | -2.8954E-02 |
| S6 | 2.4465E-02 | -2.0572E-01 | 2.9973E-01 | -2.4639E-01 | 1.1832E-01 | -2.9240E-02 | 2.7917E-03 |
| S7 | 1.3606E-01 | -1.2164E-01 | 1.4729E-01 | -1.4624E-01 | 8.7652E-02 | -2.6560E-02 | 3.0434E-03 |
| S8 | -1.0511E-04 | 1.7312E-02 | 2.6341E-03 | -2.7207E-02 | 2.3437E-02 | -7.7674E-03 | 9.5214E-04 |
| S9 | -3.6639E-03 | -1.5553E-02 | 6.1171E-02 | -8.4068E-02 | 5.8714E-02 | -1.9925E-02 | 2.6088E-03 |
| S10 | 1.3229E-01 | -2.9566E-01 | 3.4031E-01 | -2.4520E-01 | 1.0954E-01 | -2.5813E-02 | 2.3946E-03 |
| S11 | -1.7371E-01 | 3.3140E-02 | 1.3798E-02 | -1.2525E-02 | 3.0915E-03 | -1.6803E-04 | -1.7019E-05 |
| S12 | -1.5248E-01 | 7.3358E-02 | -2.6454E-02 | 6.1775E-03 | -9.1345E-04 | 7.8700E-05 | -3.0117E-06 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 27- Figure 30, and while realizing miniaturization
Property.
Embodiment seven:
Figure 31 is please referred to, optical imaging system described in the present embodiment successively includes: with negative flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 19:
Table 19
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -400.02 |
| The effective focal length of second lens: f2 (mm) | 6.13 |
| The effective focal length of the third lens: f3 (mm) | -16.76 |
| The effective focal length of 4th lens: f4 (mm) | 6.62 |
| The effective focal length of 5th lens: f5 (mm) | 2.52 |
| The effective focal length of 6th lens: f6 (mm) | -2.51 |
| The effective focal length of optical imaging system: f (mm) | 3.02 |
| Stop value: Fno | 2.54 |
| Angle of half field-of view: HFOV (°) | 45.03 |
| f2/f | 2.031 |
| f6/f | -0.833 |
| V6 | 56.114 |
| CT2/CT4 | 0.995 |
| R8/R9 | 0.896 |
| SAG51/SAG52 | 0.437 |
| SAG61×10/TTL | -0.729 |
| DT11/DT32 | 1.148 |
| DT11/DT41 | 1.119 |
| T23/T34 | 1.067 |
| T12/TTL | 0.145 |
| ImgH/f | 1.021 |
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment be see the table below
20:
Table 20
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | It is infinite | 0.0000 | ||
| S1 | It is aspherical | 10.6974 | 0.5161 | 1.54/56.1 | -99.0000 |
| S2 | It is aspherical | 10.0241 | 0.7600 | -99.0000 | |
| STO | Spherical surface | It is infinite | 0.1430 | ||
| S3 | It is aspherical | 87.6416 | 0.6312 | 1.54/56.1 | -99.0000 |
| S4 | It is aspherical | -3.4710 | 0.1551 | 10.5700 | |
| S5 | It is aspherical | 3.0878 | 0.3595 | 1.64/23.5 | -7.9883 |
| S6 | It is aspherical | 2.2918 | 0.1453 | -4.5667 | |
| S7 | It is aspherical | -10.1170 | 0.6344 | 1.54/56.1 | 2.8671 |
| S8 | It is aspherical | -2.7229 | 0.0544 | -0.6887 | |
| S9 | It is aspherical | -3.0373 | 0.6050 | 1.54/56.1 | -0.1220 |
| S10 | It is aspherical | -1.0140 | 0.2271 | -1.7324 | |
| S11 | It is aspherical | 1.8680 | 0.3663 | 1.54/56.1 | -5.5624 |
| S12 | It is aspherical | 0.7364 | 0.7872 | -3.2004 | |
| S13 | Spherical surface | It is infinite | 0.2100 | 1.62/64.2 | |
| S14 | Spherical surface | It is infinite | 0.6128 | ||
| S15 | Spherical surface | It is infinite |
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 21:
Table 21
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 32- Figure 35, and while realizing miniaturization
Property.
Embodiment eight:
Figure 36 is please referred to, optical imaging system described in the present embodiment successively includes: with positive flexion from object side to image side
First lens L1 of power；The second lens L2 with positive refracting power, image side surface are convex surface；The third lens with negative refracting power
L3, object side are convex surface, and image side surface is concave surface；The 4th lens L4 with positive refracting power, image side surface are convex surface；With just
5th lens L5 of refracting power, image side surface are convex surface；The 6th lens L6 with negative refracting power, object side are convex surface, as
Side is concave surface.
Wherein: there is the first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface
There is object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens by S4, the third lens L3
There is L5 object side S9 and image side surface S10, the 6th lens L6 there is object side S11 and image side surface S12, optical filter L7 to have object side
Face S13 and image side surface S14.Optical imaging system imaging surface S15 described in the present embodiment is located at the image side of optical filter L7, for peace
Fill photosensitive element.
The main design parameters of optical imaging system described in the present embodiment see the table below 22:
Table 22
Wherein: V6 is the Abbe number of the 6th lens；CT2 is center thickness of second lens on optical axis；CT4 is the 4th saturating
Center thickness of the mirror on optical axis；R8 is the radius of curvature of the 4th lens image side surface；R9 is the curvature half of the 5th lens object side
Diameter；SAG51 is on the intersection point to the axis between the effective radius vertex of the first lens object side of the 5th lens object side and optical axis
Distance；SAG52 is the intersection point of the 5th lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side
Upper distance；SAG61 is the intersection point of the 6th lens object side and optical axis between the effective radius vertex of the first lens object side
Distance on axis；DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side；T23 is spacing distance on the second lens and the axis of the third lens；T34 is the third lens
With spacing distance on the axis of the 4th lens；T12 is spacing distance on the axis of the first lens and the second lens；ImgH is electronics light sensation
The half of element effective pixel area diagonal line length.
To realize above-mentioned design parameter, specifically designing used by optical imaging system described in the present embodiment be see the table below
23:
Table 23
In optical imaging system described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 24:
Table 24
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.9948E-02 | -1.9990E-02 | 1.4460E-02 | -6.0650E-03 | 2.2728E-03 | -4.1245E-04 | 5.1404E-05 |
| S2 | 1.1913E-01 | -4.2912E-02 | 6.2203E-02 | -6.0460E-02 | 4.7389E-02 | -1.8198E-02 | 1.8591E-03 |
| S3 | -7.4960E-02 | -8.0387E-02 | -2.3946E-03 | -3.4806E-01 | 9.1716E-01 | -1.7046E+00 | 5.4761E-01 |
| S4 | -1.7722E-01 | -3.4497E-03 | 2.2682E-01 | -5.7414E-01 | 7.6332E-01 | -5.4550E-01 | 1.3341E-01 |
| S5 | -1.9321E-01 | -2.0656E-01 | 5.3417E-01 | -5.4216E-01 | 3.9853E-01 | -1.9508E-01 | 4.2998E-02 |
| S6 | 4.9722E-02 | -3.3800E-01 | 5.4998E-01 | -4.9784E-01 | 2.7367E-01 | -8.5273E-02 | 1.1542E-02 |
| S7 | 1.4829E-01 | -7.5188E-02 | -3.8774E-02 | 9.1602E-02 | -6.0845E-02 | 1.9218E-02 | -2.5180E-03 |
| S8 | -7.1828E-03 | -8.7807E-03 | 1.0408E-01 | -1.5882E-01 | 1.0627E-01 | -3.2947E-02 | 3.9111E-03 |
| S9 | 1.4155E-02 | -7.2954E-02 | 1.5811E-01 | -1.7759E-01 | 1.1032E-01 | -3.5069E-02 | 4.4464E-03 |
| S10 | 1.4040E-01 | -3.0368E-01 | 3.3890E-01 | -2.4187E-01 | 1.1028E-01 | -2.6885E-02 | 2.5864E-03 |
| S11 | -1.7170E-01 | -1.2953E-02 | 6.8421E-02 | -4.5583E-02 | 1.4152E-02 | -2.0223E-03 | 1.0337E-04 |
| S12 | -1.4382E-01 | 6.8847E-02 | -2.3717E-02 | 5.0940E-03 | -6.6780E-04 | 4.9626E-05 | -1.6106E-06 |
Optical imaging system described in the present embodiment, on the basis of realizing ultra-wide angle, to off-axis aberration, color difference, astigmatism,
Distortion etc. has carried out preferable correction, maintains good technique referring to attached drawing 37- Figure 40, and while realizing miniaturization
Property.
Above embodiments are only the preferable specific embodiments lifted to absolutely prove wide-angle camera of the present invention, and
It is non-to be used to limit the scope of protection of the present invention.Those skilled in the art on the basis of the present invention made by equivalent substitute or
Transformation, it is within the scope of the present invention.Protection scope of the present invention be subject to claims record content.
Claims (8)
1. a kind of optical imaging system, which is characterized in that successively include by object side to image side:
The first lens with refracting power, object side are convex surface, and image side surface is concave surface；
The second lens with positive refracting power, image side surface are convex surface；
The third lens with refracting power, object side are convex surface, and image side surface is concave surface；
The 4th lens with refracting power, image side surface are convex surface；
The 5th lens with positive refracting power, image side surface are convex surface；
The 6th lens with negative refracting power, object side are convex surface, and image side surface is concave surface；
Meet relational expression: 1.9 < f2/f < 2.5 simultaneously；-1.5<f6/f<-0.5
Wherein, f2 is the effective focal length of the second lens, and f6 is the effective focal length of the 6th lens, and f is the effective of optical imaging system
Focal length.
2. optical imaging system as described in claim 1, it is characterised in that meet relational expression: 20 < V6 < 60, wherein V6
The Abbe number of six lens.
3. optical imaging system as described in claim 1, it is characterised in that meet relational expression: 0.8 < CT2/CT4 < 1.3,
In, CT2 is center thickness of second lens on optical axis, and CT4 is center thickness of the 4th lens on optical axis.
4. optical imaging system as described in claim 1, it is characterised in that meet relational expression: 0.5 < R8/R9 < 1, wherein R8
For the radius of curvature of the 4th lens image side surface；R9 is the radius of curvature of the 5th lens object side.
5. optical imaging system as described in claim 1, it is characterised in that meet following relationship: 1 < DT11/DT32 < 1.5；
0.9<DT11/DT41<1.4；
Wherein, DT11 is the effective radius of the first lens object side；DT32 is the effective radius of the third lens image side surface；DT41 is
The effective radius of 4th lens object side.
6. optical imaging system as described in claim 1, it is characterised in that meet following relationship: 0.7 < T23/T34 < 1.5；
0.1 < T12/TTL < 0.2,
Wherein, T23 is spacing distance on the second lens and the axis of the third lens；T34 is on the axis of the third lens and the 4th lens
Spacing distance；T12 is spacing distance on the axis of the first lens and the second lens；TTL is the first lens object side to imaging surface
Distance on axis.
7. optical imaging system as described in claim 1, it is characterised in that meet relational expression: 1.0 < ImgH/f < 1.5, wherein
ImgH is the half of electronics light sensitive component effective pixel area diagonal line length；F is the effective focal length of optical imaging system.
8. optical imaging system as described in claim 1, which is characterized in that the third lens have negative power, the 4th lens
With positive light coke.
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| TWI600940B (en) * | 2017-03-01 | 2017-10-01 | 大立光電股份有限公司 | Optical imaging lens system, image capturing unit and electronic device |
| TWI616700B (en) | 2017-04-17 | 2018-03-01 | 大立光電股份有限公司 | Optical image capturing lens assembly, imaging apparatus and electronic device |
| TWI653481B (en) | 2017-06-09 | 2019-03-11 | 大立光電股份有限公司 | Optical imaging lens assembly, image capturing unit and electronic device |
| CN110501799B (en) * | 2018-05-16 | 2022-03-11 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN118550065A (en) * | 2019-01-22 | 2024-08-27 | 浙江舜宇光学有限公司 | Optical lens group |
| CN110850558B (en) * | 2019-12-20 | 2024-08-23 | 辽宁中蓝光电科技有限公司 | Super wide angle camera lens |
| CN110955024B (en) * | 2019-12-23 | 2021-12-03 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| CN113646684A (en) * | 2019-12-31 | 2021-11-12 | 深圳市大疆创新科技有限公司 | Optical viewfinder and camera |
| CN114063245B (en) * | 2020-08-04 | 2022-09-30 | 新巨科技股份有限公司 | Six-piece wide-angle lens group |
| CN115480373A (en) * | 2022-08-25 | 2022-12-16 | 江西晶超光学有限公司 | Optical lens, camera module and electronic equipment |
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