WO2020140509A1 - 摄像光学镜头 - Google Patents

摄像光学镜头 Download PDF

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Publication number
WO2020140509A1
WO2020140509A1 PCT/CN2019/108919 CN2019108919W WO2020140509A1 WO 2020140509 A1 WO2020140509 A1 WO 2020140509A1 CN 2019108919 W CN2019108919 W CN 2019108919W WO 2020140509 A1 WO2020140509 A1 WO 2020140509A1
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Prior art keywords
lens
imaging optical
optical lens
refractive power
object side
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English (en)
French (fr)
Inventor
赵青
言俊杰
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AAC Communication Technologies Changzhou Co Ltd
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AAC Communication Technologies Changzhou Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components
    • 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
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines

Definitions

  • the invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and imaging devices such as monitors and PC lenses.
  • the photosensitive device of general photographic lenses is nothing more than a photosensitive coupling device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal) -Oxide Semicondctor Sensor, CMOS Sensor), and due to the advancement of semiconductor manufacturing process technology, the pixel size of the photosensitive device has been reduced.
  • CCD Charge Coupled Device
  • CMOS Sensor complementary metal oxide semiconductor device
  • today's electronic products have a trend of good function, thin and short appearance, so they have good
  • the imaging quality of the miniaturized camera lens has become the mainstream on the market.
  • the lenses traditionally mounted on mobile phone cameras mostly adopt three-piece, four-piece, five-piece and six-piece lens structures.
  • the pixel area of the photosensitive device continues to shrink, and the system's requirements for imaging quality continue to increase.
  • the seven-piece lens structure gradually appears in the lens design. Common Although the seven-piece lens has good optical performance, its power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure that cannot satisfy good optical performance, large aperture, Ultra-thin design requirements.
  • the object of the present invention is to provide an imaging optical lens that has good optical performance and meets the design requirements of large aperture and ultra-thinness.
  • an imaging optical lens which includes, in order from the object side to the image side, an aperture, a first lens with positive refractive power, and a second lens with negative refractive power
  • the lens a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens with negative refractive power, a sixth lens with positive refractive power, a seventh lens with negative refractive power Lens;
  • the focal length of the first lens is f1
  • the focal length of the second lens is f2
  • the Abbe number of the first lens is v1
  • the Abbe number of the second lens is v2, satisfying the following relationship : 3.00 ⁇ v1/v2 ⁇ 4.20; -21.00 ⁇ f2/f1 ⁇ -5.00.
  • the embodiments of the present invention stipulate the ratio of the focal length of the first lens and the second lens, and the ratio of the Abbe number of the first lens and the second lens.
  • the power of the first lens and the second lens helps to correct the aberration of the optical lens while effectively allocating the material properties, thereby improving the imaging quality, so that the optical system has good optical performance while meeting the large aperture and ultra Thin design requirements.
  • the focal length of the third lens is f3
  • the focal length of the sixth lens is f6, which satisfies the following relationship: 3.40 ⁇ f3/f6 ⁇ 8.50.
  • the on-axis thickness of the first lens is d1
  • the on-axis distance of the image side of the first lens to the object side of the second lens is d2, satisfying the following relationship: 4.50 ⁇ d1/d2 ⁇ 9.00 .
  • the radius of curvature of the object side of the fifth lens is R9
  • the radius of curvature of the image side of the fifth lens is R10, which satisfies the following relationship: 0.40 ⁇ (R9+R10)/(R9-R10) ⁇ 9.50.
  • FIG. 1 is a schematic structural diagram of an imaging optical lens in the first embodiment of the present invention
  • FIG. 2 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 1;
  • FIG. 3 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in FIG. 1;
  • FIG. 4 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 1;
  • FIG. 5 is a schematic structural view of an imaging optical lens according to a second embodiment of the invention.
  • FIG. 6 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 5;
  • FIG. 7 is a schematic diagram of magnification chromatic aberration of the imaging optical lens shown in FIG. 5;
  • FIG. 8 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 5;
  • FIG. 9 is a schematic structural view of an imaging optical lens according to a third embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 9;
  • FIG. 11 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in FIG. 9;
  • FIG. 12 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 9;
  • FIG. 13 is a schematic structural view of an imaging optical lens according to a fourth embodiment of the invention.
  • FIG. 14 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 13;
  • FIG. 15 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in FIG. 13;
  • FIG. 16 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 13;
  • FIG. 17 is a schematic structural view of an imaging optical lens according to a fifth embodiment of the present invention.
  • FIG. 18 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 17;
  • FIG. 19 is a schematic diagram of magnification chromatic aberration of the imaging optical lens shown in FIG. 17;
  • FIG. 20 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 17.
  • 21 is a schematic structural view of an imaging optical lens according to a sixth embodiment of the invention.
  • FIG. 22 is a schematic diagram of the axial aberration of the imaging optical lens shown in FIG. 21;
  • FIG. 23 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in FIG. 21;
  • FIG. 24 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 21.
  • FIG. 1 shows an imaging optical lens 10 according to a first embodiment of the present invention.
  • the imaging optical lens 10 includes seven lenses.
  • the imaging optical lens 10 includes, in order from the object side to the image side, an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth The lens L6 and the seventh lens L7.
  • an optical element such as a glass flat plate GF is provided between the seventh lens L7 and the image plane Si.
  • the glass flat plate GF may be a glass cover plate or an optical filter. Of course, In other possible implementation manners, the glass plate GF may also be disposed at other positions.
  • the first lens L1 has a positive refractive power, and its object side surface is convex outward, and its image side is concave;
  • the second lens L2 has a negative refractive power, its object side surface is convex, and its image side is concave
  • the third lens L3 has a positive refractive power, its object side is convex, and its image side is concave;
  • the fourth lens L4 has a negative refractive power, its object side is concave, and its image side is convex;
  • the fifth lens L5 has negative refractive power Force, its object side is convex and its image side is concave;
  • the sixth lens L6 has positive refractive power, its object side is convex and its image side is convex;
  • the seventh lens L7 has negative refractive power and its object side is concave, The image side is concave.
  • the focal length of the first lens L1 is defined as f1
  • the focal length is in millimeters (mm)
  • the focal length of the second lens L2 is defined as f2
  • the Abbe number of the first lens L1 is v1
  • the Abbe number of the second lens L2 is v2.
  • conditional expression (1) specifies the ratio between the Abbe number v1 of the first lens L1 and the Abbe number v2 of the second lens L2.
  • the material properties can be effectively allocated to improve the aberration , which helps to improve the imaging quality of the imaging optical lens 10.
  • Conditional expression (2) specifies the ratio between the focal length f1 of the first lens L1 and the focal length f2 of the second lens L2. Within the range of this conditional expression, the rational distribution of the first lens L1 and the second lens L2 The optical power is helpful for correcting the aberration of the imaging optical lens 10, thereby improving the imaging quality.
  • the first lens L1 and the second lens L2 having a specific matching relationship between the focal length and the Abbe number by using lenses with different refractive powers through the above-mentioned lens arrangement methods contribute to the image of the optical system Correct the difference, and then improve the imaging quality, so that the optical system has good optical performance while meeting the design requirements of large aperture and ultra-thin.
  • the focal length of the third lens L3 is f3
  • the focal length of the sixth lens L6 is f6, which satisfies the following relationship:
  • Conditional expression (3) specifies the ratio between the focal length f3 of the third lens L3 and the focal length f6 of the sixth lens L6. Within the range of this conditional expression, the rational distribution of the third lens L3 and the sixth lens L6 The optical power is helpful for correcting the aberration of the imaging optical lens 10, thereby improving the imaging quality.
  • the axial thickness of the first lens L1 is d1
  • the axial distance of the image side of the first lens L1 to the object side of the second lens L2 is d2, which satisfies the following relationship:
  • Conditional expression (4) specifies the ratio between the axial thickness of the first lens L1 and the axial distance between the image side of the first lens L1 and the object side of the second lens L2. The processing of a lens and the assembly of 10 of the imaging optical lens.
  • the radius of curvature of the object side of the fifth lens L5 is R9
  • the radius of curvature of the image side of the fifth lens L5 is R10, which satisfies the following relationship:
  • Conditional expression (5) specifies the shape of the fifth lens L5. In this way, the degree of deflection of light passing through the lens can be reduced, and the aberration of the imaging optical lens 10 can be effectively reduced.
  • the surface of the lens can be set as an aspheric surface, and the aspheric surface can be easily made into a shape other than a spherical surface, and more control variables are obtained to reduce aberrations, thereby reducing the number of lenses used, so the imaging optics of the present invention can be effectively reduced
  • the total length of the lens In the embodiment of the present invention, the object side and the image side of each lens are aspherical.
  • the imaging optical lens 10 can reasonably allocate the power, surface type, material, and on-axis thickness of each lens, etc., and thus correct various types of aberrations,
  • the optical imaging system Fno ⁇ 1.48 of the imaging optical lens 10 in the present invention; the total optical length TTL of the imaging optical lens 10 and the image height IH of the imaging optical lens 10 satisfy the following relationship: TTL/IH ⁇ 1.55. It achieves the design requirements of large aperture and ultra-thin while having good optical imaging performance.
  • the object side and/or image side of the lens may also be provided with a reflex point and/or a stagnation point to meet the high-quality imaging requirements.
  • a reflex point and/or a stagnation point may also be provided with a stagnation point to meet the high-quality imaging requirements.
  • FIG. 1 is a schematic structural diagram of an imaging optical lens 10 in the first embodiment.
  • Table 1 lists the curvature radius R of the object side and the image side of the first lens L1 to the seventh lens L7 constituting the imaging optical lens 10 in the first embodiment of the present invention, the center thickness of the lens, the distance d between the lenses, and the refractive index nd and Abbe number vd.
  • Table 2 shows the conic coefficient k and aspherical coefficient of the imaging optical lens 10. It should be noted that in this embodiment, the unit of distance, radius, and center thickness is millimeters (mm).
  • R the radius of curvature of the optical surface and the center radius of curvature when the lens is used
  • R1 radius of curvature of the object side of the first lens L1;
  • R2 radius of curvature of the image side of the first lens L1;
  • R3 radius of curvature of the object side of the second lens L2;
  • R4 radius of curvature of the image side of the second lens L2;
  • R5 radius of curvature of the object side of the third lens L3;
  • R6 radius of curvature of the image side of the third lens L3;
  • R7 radius of curvature of the object side of the fourth lens L4;
  • R8 radius of curvature of the image side of the fourth lens L4;
  • R9 radius of curvature of the object side of the fifth lens L5;
  • R10 radius of curvature of the image side of the fifth lens L5;
  • R11 radius of curvature of the object side of the sixth lens L6;
  • R12 radius of curvature of the image side of the sixth lens L6;
  • R13 radius of curvature of the object side of the seventh lens L7;
  • R14 radius of curvature of the image side of the seventh lens L7;
  • R15 the radius of curvature of the side of the glass plate GF
  • R16 radius of curvature of the image side of the glass plate GF
  • d the axial thickness of the lens or the axial distance between adjacent lenses
  • d2 the axial distance between the image side of the first lens L1 and the object side of the second lens L2;
  • d4 the axial distance between the image side of the second lens L2 and the object side of the third lens L3;
  • d6 the axial distance between the image side of the third lens L3 and the object side of the fourth lens L4;
  • d10 the axial distance between the image side of the fifth lens L5 and the object side of the sixth lens L6;
  • d12 the axial distance between the image side of the sixth lens L6 and the object side of the seventh lens L7;
  • d14 the axial distance between the image side of the seventh lens L7 and the object side of the optical filter GF;
  • nd refractive index of d line
  • nd1 refractive index of the d-line of the first lens L1;
  • nd2 refractive index of the d-line of the second lens L2;
  • nd3 refractive index of the d-line of the third lens L3;
  • nd4 refractive index of the d-line of the fourth lens L4;
  • nd5 refractive index of the d-line of the fifth lens L5;
  • nd6 refractive index of the d-line of the sixth lens L6;
  • nd7 refractive index of the d-line of the seventh lens L7;
  • ndg the refractive index of the d line of the glass plate GF
  • vg Abbe number of glass plate GF.
  • k is the conic coefficient
  • A4, A6, A8, A10, A12, A14, A16, A18, A20 are aspherical coefficients.
  • the aspherical surface of each lens is preferably an aspherical surface as shown in the following conditional expression (6).
  • conditional expression (6) the specific form of the following conditional expression (6) is only an example. In fact, It is not limited to the aspherical polynomial form expressed in conditional expression (6).
  • Tables 3 and 4 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 10 of the first embodiment of the present invention.
  • P1R1, P2R2 respectively represent the object side and the image side of the first lens L1, P2R1, P2R2 respectively represent the object side and the image side of the second lens L2, P3R1, P3R2 respectively represent the object side and the image side of the third lens L3, P4R1, P4R2 respectively represent the object side and image side of the fourth lens L4, P5R1, P5R2 respectively represent the object side and image side of the fifth lens L5, P6R1, P6R2 respectively represent the object side and image side of the sixth lens L6, P7R1 P7R2 represents the object side and the image side of the seventh lens L7, respectively.
  • the corresponding data in the "Recurve Point Position” column is the vertical distance from the reflex point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • the corresponding data in the “stay point position” column is the vertical distance between the stagnation point set on the surface of each lens and the optical axis of the imaging optical lens 10.
  • FIGS. 2 and 3 show schematic diagrams of axial aberration and magnification chromatic aberration of light having wavelengths of 486 nm, 588 nm, and 656 nm after passing through the imaging optical lens 10 of the first embodiment.
  • FIG. 4 shows a schematic diagram of field curvature and distortion after the light with a wavelength of 656 nm passes through the imaging optical lens 10 of the first embodiment.
  • the field curvature S in FIG. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 10 has a large aperture, ultra-thin, and has Excellent imaging performance.
  • FIG. 5 is a schematic diagram of the structure of the imaging optical lens 20 in the second embodiment.
  • the second embodiment is basically the same as the first embodiment, and the symbols have the same meaning as the first embodiment. Only the differences are listed below.
  • Tables 5 and 6 show the design data of the camera 20 according to the second embodiment of the present invention.
  • Tables 7 and 8 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 20 of the embodiment of the present invention.
  • FIG. 6 and 7 respectively show schematic diagrams of axial aberration and magnification chromatic aberration of light having wavelengths of 486 nm, 588 nm, and 656 nm after passing through the imaging optical lens 20 of the second embodiment.
  • FIG. 8 shows a schematic diagram of field curvature and distortion after the light with a wavelength of 656 nm passes through the imaging optical lens 20 of the second embodiment.
  • the field curvature S in FIG. 8 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 20 has a large aperture, is ultra-thin, and has excellent imaging performance.
  • FIG. 9 is a schematic diagram of the structure of the imaging optical lens 30 in the third embodiment.
  • the third embodiment is basically the same as the first embodiment, and the symbols have the same meaning as the first embodiment. Only the differences are listed below.
  • Table 9 and Table 10 show the design data of the imaging optical lens 30 of the third embodiment of the present invention.
  • Table 11 and Table 12 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 30 of the embodiment of the present invention.
  • FIG. 10 and 11 respectively show schematic diagrams of axial aberration and magnification chromatic aberration of light having wavelengths of 486 nm, 588 nm, and 656 nm after passing through the imaging optical lens 30 of the third embodiment.
  • FIG. 12 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 656 nm after passing through the imaging optical lens 30 of the third embodiment.
  • the field curvature S in FIG. 12 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 30 has a large aperture, is ultra-thin, and has excellent imaging performance.
  • FIG. 13 is a schematic diagram of the structure of the imaging optical lens 40 in the fourth embodiment.
  • the fourth embodiment is basically the same as the first embodiment, and the symbol meaning is the same as the first embodiment. Only the differences are listed below.
  • Table 13 and Table 14 show the design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.
  • Table 15 and Table 16 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 40 of the embodiment of the present invention.
  • FIG. 14 and 15 show schematic diagrams of axial aberration and magnification chromatic aberration of light having wavelengths of 486 nm, 588 nm, and 656 nm after passing through the imaging optical lens 40 of the fourth embodiment.
  • FIG. 16 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 656 nm after passing through the imaging optical lens 40 of the fourth embodiment.
  • the field curvature S in FIG. 16 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 40 has a large aperture, is ultra-thin, and has excellent imaging performance.
  • FIG. 17 is a schematic diagram of the structure of the imaging optical lens 50 in the fifth embodiment.
  • the fifth embodiment is basically the same as the first embodiment, and the symbols have the same meaning as the first embodiment. Only the differences are listed below.
  • Table 17 and Table 18 show the design data of the imaging optical lens 50 of the fifth embodiment of the present invention.
  • Table 19 and Table 20 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 50 of the embodiment of the present invention.
  • FIG. 20 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 656 nm after passing through the imaging optical lens 50 of the fifth embodiment.
  • the field curvature S in FIG. 20 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 50 has a large aperture, is ultra-thin, and has excellent imaging performance.
  • FIG. 21 is a schematic diagram of the structure of the imaging optical lens 60 in the sixth embodiment.
  • the sixth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.
  • Table 21 and Table 22 show the design data of the imaging optical lens 60 of the sixth embodiment of the present invention.
  • Table 23 and Table 24 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 60 of the embodiment of the present invention.
  • FIG. 22 and 23 show schematic diagrams of axial aberration and magnification chromatic aberration of light having wavelengths of 486 nm, 588 nm, and 656 nm after passing through the imaging optical lens 60 of the sixth embodiment.
  • FIG. 24 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 656 nm after passing through the imaging optical lens 60 of the sixth embodiment.
  • the field curvature S in FIG. 24 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.
  • the imaging optical lens 60 has a large aperture, is ultra-thin, and has excellent imaging performance.
  • Table 25 lists the first, second, third, fourth, fifth, and sixth embodiments corresponding to the respective conditional expressions (1), (2 ), (3), (4), (5), and other related parameters.
  • Example 1 Example 2
  • Example 3 Example 4
  • Example 5 Example 6 Remarks v1/v2 3.99 3.99 4.19 3.01 3.85
  • Conditional (1) f2/f1 -20.91 -10.86 -15.1 -21.00 -5.07 -11.14
  • Conditional (2) f3/f6 8.06 7.70 8.42 7.81 7.11 3.5
  • Conditional (3) d1/d2 8.84 5.16 7.22 8.02 7.53 4.79
  • Conditional (5) f 4.323 4.858 4.328 4.334 4.328 5.035 A f1 5.18 6.227 5.225 5.315 4.83 5.912 A f2 -108.297 -67.595 -78.879 -111.606 -24.501 -65.848

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Abstract

一种摄像光学镜头（10），涉及光学镜头领域，由物侧至像侧依序包括：一光圈（S1），一具有正屈折力的第一透镜（L1），一具有负屈折力的第二透镜（L2），一具有正屈折力的第三透镜（L3），一具有负屈折力的第四透镜（L4），一具有负屈折力的第五透镜（L5），一具有正屈折力的第六透镜（L6），以及一具有负屈折力的第七透镜（L7）；第一透镜（L1）的焦距为f1，第二透镜（L2）的焦距为f2，第一透镜（L1）的阿贝数为v1，第二透镜（L2）的阿贝数为v2，满足下列关系式：3.00≤v1/v2≤4.2；-21.00≤f2/f1≤-5.00。摄像光学镜头能在具有良好光学性能的同时，满足大光圈、超薄化的设计要求。

Description

摄像光学镜头 技术领域
本发明涉及光学镜头领域，特别涉及一种适用于智能手机、数码相机等手提终端设备，以及监视器、PC镜头等摄像装置的摄像光学镜头。
背景技术
近年来，随着智能手机的兴起，小型化摄影镜头的需求日渐提高，而一般摄影镜头的感光器件不外乎是感光耦合器件(Charge Coupled Device,CCD)或互补性氧化金属半导体器件(Complementary Metal-OxideSemicondctor Sensor,CMOS Sensor)两种，且由于半导体制造工艺技术的精进，使得感光器件的像素尺寸缩小，再加上现今电子产品以功能佳且轻薄短小的外型为发展趋势，因此，具备良好成像品质的小型化摄像镜头俨然成为目前市场上的主流。
为获得较佳的成像品质，传统搭载于手机相机的镜头多采用三片式、四片式、五片式及六片式透镜结构。然而，随着技术的发展以及用户多样化需求的增多，在感光器件的像素面积不断缩小，且系统对成像品质的要求不断提高的情况下，七片式透镜结构逐渐出现在镜头设计当中，常见的七片式透镜虽然已经具有较好的光学性能，但是其光焦度、透镜间距和透镜形状设置仍然具有一定的不合理性，导致透镜结构无法满足具有良好光学性能的同时，满足大光圈、超薄化的设计要求。
发明内容
针对上述问题，本发明的目的在于提供一种摄像光学镜头，其在具有良好光学性能的同时，满足大光圈、超薄化的设计要求。
为解决上述技术问题，本发明的实施方式提供了一种摄像光学镜头，由物侧至像侧依序包括：一光圈，一具有正屈折力的第一透镜，一具有负屈折力的第二透镜，一具有正屈折力的第三透镜，一具有负屈折力的第四透镜，一具有负屈折力的第五透镜，一具有正屈折力的第六透镜，一具有负屈折力的第七透镜；所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第一透镜的阿贝数为v1，所述第二透镜的阿贝数为v2，满足下列关系式：3.00≤v1/v2≤4.20；-21.00≤f2/f1≤-5.00。
本发明实施方式相对于现有技术而言，规定了第一透镜和第二透镜焦距的比值，以及第一透镜和第二透镜阿贝数的比值，通过上述透镜的配置方式，有效的分配第一透镜和第二透镜的光焦度、有助于在矫正光学镜头像差的同时，有效的分配材料属性，进而提升成像品质，使光学系统在具有良好光学性能的同时，满足大光圈、超薄化的设计要求。
另外，所述第三透镜的焦距为f3，所述第六透镜的焦距为f6，满足下列关系式：3.40≤f3/f6≤8.50。
另外，所述第一透镜的轴上厚度为d1，所述第一透镜的像侧面到所述第二透镜的物侧面的轴上距离为d2，满足下列关系式：4.50≤d1/d2≤9.00。
另外，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为R10，满足下列关系式：0.40≤(R9+R10)/(R9-R10)≤9.50。
附图说明
图1是本发明第一实施方式中摄像光学镜头的结构示意图；
图2是图1所示摄像光学镜头的轴向像差示意图；
图3是图1所示摄像光学镜头的倍率色差示意图；
图4是图1所示摄像光学镜头的场曲及畸变示意图；
图5是本发明第二实施方式的摄像光学镜头的结构示意图；
图6是图5所示摄像光学镜头的轴向像差示意图；
图7是图5所示摄像光学镜头的倍率色差示意图；
图8是图5所示摄像光学镜头的场曲及畸变示意图；
图9是本发明第三实施方式的摄像光学镜头的结构示意图；
图10是图9所示摄像光学镜头的轴向像差示意图；
图11是图9所示摄像光学镜头的倍率色差示意图；
图12是图9所示摄像光学镜头的场曲及畸变示意图；
图13是本发明第四实施方式的摄像光学镜头的结构示意图；
图14是图13所示摄像光学镜头的轴向像差示意图；
图15是图13所示摄像光学镜头的倍率色差示意图；
图16是图13所示摄像光学镜头的场曲及畸变示意图；
图17是本发明第五实施方式的摄像光学镜头的结构示意图；
图18是图17所示摄像光学镜头的轴向像差示意图；
图19是图17所示摄像光学镜头的倍率色差示意图；
图20是图17所示摄像光学镜头的场曲及畸变示意图。
图21是本发明第六实施方式的摄像光学镜头的结构示意图；
图22是图21所示摄像光学镜头的轴向像差示意图；
图23是图21所示摄像光学镜头的倍率色差示意图；
图24是图21所示摄像光学镜头的场曲及畸变示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本发明各实施方式中，为了使读者更好地理解本发明而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本发明所要求保护的技术方案。
以下为第一实施方式：
参考附图，本发明提供了一种摄像光学镜头10。图1所示为本发明第一实施方式的摄像光学镜头10，该摄像光学镜头10包括七个透镜。具体的，所述摄像光学镜头10，由物侧至像侧依序包括：光圈S1、第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6以及第七透镜L7。本实施方式中，优选的，在第七透镜L7和像面Si之间设置有玻璃平板GF等光学元件，其中玻璃平板GF可以是玻璃盖板，也可以是光学过滤片(filter)，当然在其他可实施方式中，玻璃平板GF还可以设置在其他位置。
本实施方式中，第一透镜L1具有正屈折力，其物侧面向外凸出为凸面，其像侧面为凹面；第二透镜L2具有负屈折力，其物侧面为凸面，其像侧面为凹面；第三透镜L3具有正屈折力，其物侧面为凸面，其像侧面为凹面；第四透镜L4具有负屈折 力，其物侧面为凹面，其像侧面为凸面；第五透镜L5具有负屈折力，其物侧面为凸面，其像侧面为凹面；第六透镜L6具有正屈折力，其物侧面为凸面，其像侧面为凸面；第七透镜L7具有负屈折力，其物侧面为凹面，其像侧面为凹面。
在此，定义第一透镜L1的焦距为f1，焦距单位为毫米(mm)，第二透镜L2的焦距为f2，第一透镜L1的阿贝数为v1，第二透镜L2的阿贝数为v2。满足下列关系式：
3.00≤v1/v2≤4.20；。      (1)
-21.00≤f2/f1≤-5.00。       (2)
其中，条件式(1)规定了第一透镜L1的阿贝数v1和第二透镜L2的阿贝数v2之间的比值，在此条件式范围内时，可有效分配材料属性，改善像差，有助于提升摄像光学镜头10的成像品质。
条件式(2)规定了第一透镜L1的焦距f1和第二透镜L2的焦距f2之间的比值，在此条件式范围内时，更加合理的分配了第一透镜L1和第二透镜L2的光焦度，有利于对摄像光学镜头10的像差进行校正，进而提升成像品质。
本实施方式中，通过上述透镜的配置方式，利用具有不同屈折力的透镜，在焦距和阿贝数上具有特定配合关系的第一透镜L1和第二透镜L2，有助于对光学系统的像差进行校正，进而提升成像品质，使光学系统在具有良好光学性能的同时，满足大光圈、超薄化的设计要求。
具体的，本发明实施方式中，第三透镜L3的焦距为f3，第六透镜L6的焦距为f6，满足下列关系的关系式：
3.40≤f3/f6≤8.50      (3)
条件式(3)规定了第三透镜L3的焦距f3和第六透镜L6的焦距f6之间的比值，在此条件式范围内时，更合理的分配了第三透镜L3和第六透镜L6的光焦度，有利于对摄像光学镜头10的像差进行校正，进而提升成像品质。
优选的，本实施方式中，第一透镜L1的轴上厚度为d1，第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离为d2，满足下列关系式：
4.50≤d1/d2≤9.00      (4)
条件式(4)规定了第一透镜L1轴上厚度和第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离之间的比值，在条件式范围内时，有助于第一透镜的加工和摄像光学镜头的10的组装。
优选的，本实施方式中，第五透镜L5物侧面的曲率半径为R9，第五透镜L5像侧面的曲率半径为R10，满足下列关系的关系式：
0.40≤(R9+R10)/(R9-R10)≤9.50       (5)
条件式(5)规定了第五透镜L5的形状，如此设置，可以缓和光线经过镜片的偏折程度，有效减小摄像光学镜头10的像差。
此外，透镜的表面可以设置为非球面，非球面可以容易制作成球面以外的形状，获得较多的控制变数，用以消减像差，进而缩减透镜使用的数目，因此可以有效降低本发明摄像光学镜头的总长度。本发明实施例中，各个透镜的物侧面和像侧面均为非球面。
值得一提的是，由于构成本实施方式的摄像光学透镜10的第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6、第七透镜L7具有如前所述的结构和参数关系，因此，摄像光学镜头10能够合理分配各透镜的光焦度、面型、材料以及各透镜的轴上厚度等，并因此校正了各类像差，本发明中的摄像光学镜头10的光学成像系统Fno≤1.48；摄像光学镜头10的光学总长TTL，摄像光学镜头10的像高IH，满足下列关系式：TTL/IH≤1.55。实现了在具有良好光学成像性能的同时，满足大光圈、超薄化的设计要求。
优选的，所述透镜的物侧面和/或像侧面上还可以设置有反曲点和/或驻点，以满足高品质的成像需求，具体的可实施方案，参下所述。
图1是第一实施方式中摄像光学镜头10的结构示意图。以下示出了本发明第一实施方式中摄像光学镜头10的设计数据。表1列出了本发明第一实施方式中构成摄像光学镜头10的第一透镜L1～第七透镜L7的物侧以及像侧曲率半径R、透镜的中心厚度、透镜间的距离d、折射率nd及阿贝数vd。表2示出了摄像光学镜头10的圆锥系数k与非球面系数。需要说明的是，本实施方式中，距离、半径和中心厚度的单位为毫米(mm)。
【表1】
Figure PCTCN2019108919-appb-000001
上表中各符号的含义如下。
R：光学面的曲率半径、透镜时为中心曲率半径；
S1：光圈；
R1：第一透镜L1的物侧面的曲率半径；
R2：第一透镜L1的像侧面的曲率半径；
R3：第二透镜L2的物侧面的曲率半径；
R4：第二透镜L2的像侧面的曲率半径；
R5：第三透镜L3的物侧面的曲率半径；
R6：第三透镜L3的像侧面的曲率半径；
R7：第四透镜L4的物侧面的曲率半径；
R8：第四透镜L4的像侧面的曲率半径；
R9：第五透镜L5的物侧面的曲率半径；
R10：第五透镜L5的像侧面的曲率半径；
R11：第六透镜L6的物侧面的曲率半径；
R12：第六透镜L6的像侧面的曲率半径；
R13：第七透镜L7的物侧面的曲率半径；
R14：第七透镜L7的像侧面的曲率半径；
R15:玻璃平板GF的物侧面的曲率半径；
R16:玻璃平板GF的像侧面的曲率半径；
d：透镜的轴上厚度或相邻透镜之间的轴上距离；
d0:光圈S1到第一透镜L1的物侧面的轴上距离；
d1：第一透镜L1的轴上厚度；
d2：第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离；
d3：第二透镜L2的轴上厚度；
d4：第二透镜L2的像侧面到第三透镜L3的物侧面的轴上距离；
d5：第三透镜L3的轴上厚度；
d6：第三透镜L3的像侧面到第四透镜L4的物侧面的轴上距离；
d7：第四透镜L4的轴上厚度；
d8：第四透镜L4的像侧面到第五透镜L5的物侧面的轴上距离；
d9：第五透镜L5的轴上厚度；
d10：第五透镜L5的像侧面到第六透镜L6的物侧面的轴上距离；
d11：第六透镜L6的轴上厚度；
d12：第六透镜L6的像侧面到第七透镜L7的物侧面的轴上距离；
d13：第七透镜L7的轴上厚度；
d14：第七透镜L7的像侧面到光学过滤片GF的物侧面的轴上距离；
d15：玻璃平板GF的轴上厚度；
d16：玻璃平板GF的像侧面到像面Si的轴上距离；
nd：d线的折射率；
nd1：第一透镜L1的d线的折射率；
nd2：第二透镜L2的d线的折射率；
nd3：第三透镜L3的d线的折射率；
nd4：第四透镜L4的d线的折射率；
nd5：第五透镜L5的d线的折射率；
nd6：第六透镜L6的d线的折射率；
nd7：第七透镜L7的d线的折射率；
ndg：玻璃平板GF的d线的折射率；
vd:阿贝数；
v1：第一透镜L1的阿贝数；
v2：第二透镜L2的阿贝数；
v3：第三透镜L3的阿贝数；
v4：第四透镜L4的阿贝数；
v5：第五透镜L5的阿贝数；
v6：第六透镜L6的阿贝数；
v7：第七透镜L7的阿贝数；
vg：玻璃平板GF的阿贝数。
【表2】
Figure PCTCN2019108919-appb-000002
其中，k是圆锥系数，A4、A6、A8、A10、A12、A14、A16、A18、A20是非球面系数。
需要说明的是，本实施方式中各透镜的非球面优选的使用下述条件式(6)所示的非球面，但是，下述条件式(6)的具体形式仅为一个示例，实际上，并不限于条件式(6)中表示的非球面多项式形式。
Y＝(x 2/R)/{1+[1-(1+k)(x 2/R 2)] 1/2}+A 4x 4+A 6x 6+A 8x 8+A 10x 10+A 12x 12+A 14x 14+A 16x 16       (6)
表3、表4示出本发明第一实施例的摄像光学镜头10中各透镜的反曲点以及驻点设计数据。其中，P1R1、P2R2分别代表第一透镜L1的物侧面和像侧面，P2R1、P2R2分别代表第二透镜L2的物侧面和像侧面，P3R1、P3R2分别代表第三透镜L3的物侧面和像侧面，P4R1、P4R2分别代表第四透镜L4的物侧面和像侧面，P5R1、P5R2分别代表第五透镜L5的物侧面和像侧面，P6R1、P6R2分别代表第六透镜L6的物侧面和像侧面，P7R1、P7R2分别代表第七透镜L7的物侧面和像侧面。“反曲点位置”栏位对应数据为各透镜表面所设置的反曲点到摄像光学镜头10光轴的垂直距离。“驻点位置”栏位对应数据为各透镜表面所设置的驻点到摄像光学镜头10光轴的垂直距离。
【表3】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3
P1R1 1 1.405    
P1R2 1 0.705    
P2R1 2 0.645 0.745  
P2R2        
P3R1 2 0.505 1.135  
P3R2 2 0.395 1.155  
P4R1 2 1.005 1.385  
P4R2 2 1.185 1.505  
P5R1 2 0.555 1.555  
P5R2 3 0.485 1.725 1.875
P6R1 3 0.605 1.715 1.965
P6R2 2 1.895 2.085  
P7R1 2 1.365 2.715  
P7R2 3 0.445 2.565 2.915
【表4】
  驻点个数 驻点位置1
P1R1    
P1R2 1 1.275
P2R1    
P2R2    
P3R1 1 0.765
P3R2 1 0.595
P4R1 1 1.265
P4R2 1 1.455
P5R1 1 0.925
P5R2 1 0.995
P6R1 1 1.065
P6R2    
P7R1 1 2.395
P7R2 1 1.045
另外，在后续的表25中，还列出了第一实施方式中各种参数与条件式中已规定的参数所对应的值。
图2、图3分别示出了波长为486nm、588nm和656nm的光经过第一实施方式的摄像光学镜头10后的轴向像差以及倍率色差示意图。图4则示出了，波长为656nm的光经过第一实施方式的摄像光学镜头10后的场曲及畸变示意图。图4的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式中，所述摄像光学镜头10的全画角为2ω，F值为Fno，其中，2ω＝77.51°，Fno＝1.48，如此，摄像光学镜头10具有大光圈、超薄，且具有优秀的成像性能。
以下为第二实施方式：
图5是第二实施方式中摄像光学镜头20的结构示意图，第二实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。
表5、表6示出本发明第二实施方式的摄像头20的设计数据。
【表5】
Figure PCTCN2019108919-appb-000003
【表6】
Figure PCTCN2019108919-appb-000004
表7、表8示出本发明实施例的摄像光学镜头20中各透镜的反曲点以及驻点设计数据。
【表7】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3
P1R1 1 1.665    
P1R2 1 0.965    
P2R1 2 0.685 1.015  
P2R2        
P3R1 1 0.615    
P3R2 2 0.455 1.365  
P4R1 1 1.235    
P4R2 1 1.525    
P5R1 2 0.775 1.905  
P5R2 1 0.765    
P6R1 3 0.775 2.085 2.295
P6R2 2 2.225 2.585  
P7R1 2 1.595 3.045  
P7R2 3 0.535 2.875 3.285
【表8】
  驻点个数 驻点位置1
P1R1    
P1R2 1 1.565
P2R1    
P2R2    
P3R1 1 0.905
P3R2 1 0.675
P4R1 1 1.535
P4R2    
P5R1 1 1.255
P5R2 1 1.355
P6R1 1 1.275
P6R2    
P7R1 1 2.715
P7R2 1 1.195
在后续的表25中，还列出了第二实施方式中各种参数与条件式中已规定的参数所对应的值。
图6、图7分别示出了波长为486nm、588nm和656nm的光经过第二实施方式的摄像光学镜头20后的轴向像差以及倍率色差示意图。图8则示出了波长为656nm的光经过第二实施方式的摄像光学镜头20后的场曲及畸变示意图。图8的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式的摄像光学镜头20中，2ω＝78.02°，Fno＝1.44，如此，摄像光学镜头20具有大光圈、超薄，且具有优秀的成像性能。
以下为第三实施方式：
图9是第三实施方式中摄像光学镜头30的结构示意图，第三实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。
表9、表10示出了本发明第三实施方式的摄像光学镜头30的设计数据。
【表9】
Figure PCTCN2019108919-appb-000005
【表10】
Figure PCTCN2019108919-appb-000006
表11、表12示出本发明实施例的摄像光学镜头30中各透镜的反曲点以及驻点设计数据。
【表11】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3 反曲点位置4
P1R1 1 1.415      
P1R2 1 0.745      
P2R1 2 0.625 0.785    
P2R2          
P3R1 2 0.545 1.135    
P3R2 2 0.475 1.185    
P4R1 2 1.005 1.415    
P4R2 2 1.155 1.535    
P5R1 2 0.645 1.605    
P5R2 3 0.545 1.855 1.905  
P6R1 3 0.615 1.745 2.035  
P6R2 4 0.335 0.635 1.795 2.065
P7R1 2 1.385 2.705    
P7R2 3 0.475 2.545 2.905  
【表12】
  驻点个数 驻点位置1
P1R1    
P1R2 1 1.305
P2R1    
P2R2    
P3R1 1 0.805
P3R2 1 0.725
P4R1 1 1.265
P4R2 1 1.455
P5R1 1 1.005
P5R2 1 1.065
P6R1 1 1.015
P6R2    
P7R1 1 2.395
P7R2 1 0.995
在后续的表25中，还列出了第三实施方式中各种参数与条件式中已规定的参数所对应的值。
图10、图11分别示出了波长为486nm、588nm和656nm的光经过第三实施方式的摄像光学镜头30后的轴向像差以及倍率色差示意图。图12则示出了波长为656nm的光经过第三实施方式的摄像光学镜头30后的场曲及畸变示意图。图12的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式的摄像光学镜头30中，2ω＝77.51°，Fno＝1.48，如此，摄像光学镜头30具有大光圈、超薄，且具有优秀的成像性能。
以下为第四实施方式：
图13是第四实施方式中摄像光学镜头40的结构示意图，第四实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。
表13、表14示出了本发明第四实施方式的摄像光学镜头40的设计数据。
【表13】
Figure PCTCN2019108919-appb-000007
【表14】
Figure PCTCN2019108919-appb-000008
表15、表16示出本发明实施例的摄像光学镜头40中各透镜的反曲点以及驻点设计数据。
【表15】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3
P1R1 1 1.395 0 0
P1R2 1 0.695 0 0
P2R1        
P2R2        
P3R1 2 0.575 1.155 0
P3R2 2 0.525 1.205 0
P4R1 2 1.025 1.415 0
P4R2 1 1.155 0 0
P5R1 2 0.675 1.595 0
P5R2 1 0.635 0 0
P6R1 2 0.615 1.925 0
P6R2 3 0.305 0.675 2.315
P7R1 2 1.435 2.695 0
P7R2 3 0.465 2.535 2.885
【表16】
  驻点个数 驻点位置1
P1R1    
P1R2 1 1.235
P2R1    
P2R2    
P3R1 1 0.835
P3R2 1 0.785
P4R1 1 1.305
P4R2 1 1.475
P5R1 1 1.035
P5R2 1 1.105
P6R1 1 0.975
P6R2    
P7R1 1 2.405
P7R2 1 0.975
在后续的表25中，还列出了第四实施方式中各种参数与条件式中已规定的参数所对应的值。
图14、图15分别示出了波长为486nm、588nm和656nm的光经过第四实施方式的摄像光学镜头40后的轴向像差以及倍率色差示意图。图16则示出了波长为656nm的光经过第四实施方式的摄像光学镜头40后的场曲及畸变示意图。图16的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式的摄像光学镜头40中，2ω＝77.42°，Fno＝1.48，如此，摄像光学镜头40具有大光圈、超薄，且具有优秀的成像性能。
以下为第五实施方式：
图17是第五实施方式中摄像光学镜头50的结构示意图，第五实施方式与第一实施方式基本相同，符号含义与第一实施 方式相同，以下只列出不同点。
表17、表18示出了本发明第五实施方式的摄像光学镜头50的设计数据。
【表17】
Figure PCTCN2019108919-appb-000009
【表18】
Figure PCTCN2019108919-appb-000010
表19、表20示出本发明实施例的摄像光学镜头50中各透镜的反曲点以及驻点设计数据。
【表19】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3 反曲点位置4
P1R1 1 1.385 0 0 0
P1R2 1 0.675 0 0 0
P2R1 2 0.465 0.805 0 0
P2R2          
P3R1 2 0.565 1.135 0 0
P3R2 2 0.495 1.195 0 0
P4R1 2 0.995 1.415 0 0
P4R2 3 0.215 1.125 1.535 0
P5R1 1 0.685 0 0 0
P5R2 3 0.485 1.805 1.925 0
P6R1 3 0.645 1.685 2.005 0
P6R2 4 0.325 0.725 1.855 2.075
P7R1 2 0.105 1.395 0 0
P7R2 2 0.465 2.535 0 0
【表20】
  驻点个数 驻点位置1 驻点位置2
P1R1      
P1R2 1 1.195 0
P2R1      
P2R2      
P3R1 1 0.815 0
P3R2 1 0.725 0
P4R1 1 1.285 0
P4R2 2 0.355 1.455
P5R1 1 1.055 0
P5R2 1 1.045 0
P6R1 1 1.075 0
P6R2      
P7R1 2 0.185 2.445
P7R2 1 1.015 0
在后续的表25中，还列出了第五实施方式中各种参数与条件式中已规定的参数所对应的值。
图18、图19分别示出了波长为486nm、588nm和656nm的光经过第五实施方式的摄像光学镜头50后的轴向像差以及倍率色差示意图。图20则示出了波长为656nm的光经过第五实施方式的摄像光学镜头50后的场曲及畸变示意图。图20的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式的摄像光学镜头50中，2ω＝77.48°，Fno＝1.48，如此，摄像光学镜头50具有大光圈、超薄，且具有优秀的成像性能。
以下为第六实施方式：
图21是第六实施方式中摄像光学镜头60的结构示意图，第六实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。
表21、表22示出了本发明第六实施方式的摄像光学镜头60的设计数据。
【表21】
Figure PCTCN2019108919-appb-000011
【表22】
Figure PCTCN2019108919-appb-000012
表23、表24示出本发明实施例的摄像光学镜头60中各透镜的反曲点以及驻点设计数据。
【表23】
  反曲点个数 反曲点位置1 反曲点位置2 反曲点位置3 反曲点位置4
P1R1 1 1.755      
P1R2 1 1.085      
P2R1 2 0.785 1.005    
P2R2          
P3R1 1 0.325      
P3R2          
P4R1 1 0.075      
P4R2 2 0.375 1.655    
P5R1 3 0.265 0.705 1.855  
P5R2 3 0.265 1.655 2.155  
P6R1 2 0.695 1.845    
P6R2 2 0.855 2.545    
P7R1 4 0.095 1.565 2.885 3.105
P7R2 4 0.465 2.705 3.115 3.445
【表24】
  驻点个数 驻点位置1 驻点位置2
P1R1      
P1R2 1 1.655  
P2R1      
P2R2      
P3R1 1 0.475  
P3R2      
P4R1 1 0.115  
P4R2 1 0.655  
P5R1 2 0.505 0.845
P5R2 1 0.475  
P6R1 2 1.175 2.615
P6R2 2 1.225 2.945
P7R1 2 0.165 3.275
P7R2 1 1.005  
在后续的表25中，还列出了第六实施方式中各种参数与条件式中已规定的参数所对应的值。
图22、图23分别示出了波长为486nm、588nm和656nm的光经过第六实施方式的摄像光学镜头60后的轴向像差以及倍率色差示意图。图24则示出了波长为656nm的光经过第六实施方式的摄像光学镜头60后的场曲及畸变示意图。图24的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式的摄像光学镜头60中，2ω＝76.01°，Fno＝1.40，如此，摄像光学镜头60具有大光圈、超薄，且具有优秀的成像性能。
以下表25按照上述条件式列出了第一实施方式、第二实施方式、第三实施方式、第四实施方式、第五实施方式和第六实施方式中对应各条件式(1)、(2)、(3)、(4)、(5)的数值，以及其他相关参数的取值。
【表25】
  实施例1 实施例2 实施例3 实施例4 实施例5 实施例6 备注
v1/v2 3.99 3.99 3.99 4.19 3.01 3.85 条件式(1)
f2/f1 -20.91 -10.86 -15.1 -21.00 -5.07 -11.14 条件式(2)
f3/f6 8.06 7.70 8.42 7.81 7.11 3.5 条件式(3)
d1/d2 8.84 5.16 7.22 8.02 7.53 4.79 条件式(4)
(R9+R10)/(R9-R10) 4.90 9.19 5.73 7.89 6.28 0.44 条件式(5)
f 4.323 4.858 4.328 4.334 4.328 5.035  
f1 5.18 6.227 5.225 5.315 4.83 5.912  
f2 -108.297 -67.595 -78.879 -111.606 -24.501 -65.848  
f3 26.844 29.102 30.776 31.336 25.435 14.662  
f4 -38.166 -45.674 -79.06 -69.37 -31.318 -14.1  
f5 -14.158 -25.925 -15.95 -22.12 -17.564 -15.388  
f6 3.329 3.778 3.655 4.012 3.576 4.194  
f7 -2.816 -3.258 -3.061 -3.161 -3.161 -3.645  
f12 5.216 6.478 5.328 5.336 5.532 6.099  
IH 3.552 4 3.552 3.552 3.552 4.005  
本领域的普通技术人员可以理解，上述各实施方式是实现本发明的具体实施方式，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本发明的精神和范围。

Claims (4)

  1. 一种摄像光学镜头，其特征在于，所述摄像光学镜头，由物侧至像侧依序包括：一光圈，一具有正屈折力的第一透镜，一具有负屈折力的第二透镜，一具有正屈折力的第三透镜，一具有负屈折力的第四透镜，一具有负屈折力的第五透镜，一具有正屈折力的第六透镜，一具有负屈折力的第七透镜；
    所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第一透镜的阿贝数为v1，所述第二透镜的阿贝数为v2，满足下列关系式：
    3.00≤v1/v2≤4.20；
    -21.00≤f2/f1≤-5.00。
  2. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第三透镜的焦距为f3，所述第六透镜的焦距为f6，满足下列关系式：
    3.40≤f3/f6≤8.50。
  3. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第一透镜的轴上厚度为d1，所述第一透镜的像侧面到所述第二透镜的物侧面的轴上距离为d2，满足下列关系式：
    4.50≤d1/d2≤9.00。
  4. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为R10，满足下列关系式：
    0.40≤(R9+R10)/(R9-R10)≤9.50。
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