WO2021031278A1 - 摄像光学镜头 - Google Patents

摄像光学镜头 Download PDF

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Publication number
WO2021031278A1
WO2021031278A1 PCT/CN2019/107154 CN2019107154W WO2021031278A1 WO 2021031278 A1 WO2021031278 A1 WO 2021031278A1 CN 2019107154 W CN2019107154 W CN 2019107154W WO 2021031278 A1 WO2021031278 A1 WO 2021031278A1
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Prior art keywords
lens
curvature
imaging optical
radius
ttl
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PCT/CN2019/107154
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English (en)
French (fr)
Inventor
孙雯
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诚瑞光学(常州)股份有限公司
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Publication of WO2021031278A1 publication Critical patent/WO2021031278A1/zh

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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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • 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

Definitions

  • the present invention relates to the field of optical lenses, and 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 devices of general photographic lenses are nothing more than photosensitive coupling devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two types, and due to the advancement of semiconductor manufacturing technology, the pixel size of photosensitive devices has been reduced.
  • CCD Charge Coupled Device
  • CMOS Sensor complementary metal oxide semiconductor device
  • the lenses traditionally mounted on mobile phone cameras often adopt three-element, four-element, or even five-element or six-element lens structures.
  • the seven-element lens structure gradually appears in the lens design.
  • the seven-element lens has good optical performance, its optical power, lens pitch and lens shape settings are still unreasonable, resulting in the lens structure having good optical performance, but cannot meet the requirements of large aperture, Design requirements for ultra-thin and wide-angle.
  • the object of the present invention is to provide an imaging optical lens, which has good optical performance and meets the design requirements of large aperture, ultra-thin, and wide-angle.
  • the embodiments of the present invention provide the imaging optical lens, which sequentially includes from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, and The third lens with negative refractive power, the fourth lens with positive refractive power, the fifth lens with negative refractive power, the sixth lens with positive refractive power, and the seventh lens with negative refractive power;
  • the focal length of the first lens is f1
  • the overall focal length of the imaging optical lens is f
  • the focal length of the second lens is f2
  • the focal length of the third lens is f3
  • the curvature of the object side of the fourth lens The radius is R7
  • the on-axis thickness of the fourth lens is d7, and the following relationship is satisfied:
  • the radius of curvature of the object side of the second lens is R3, and the radius of curvature of the image side of the second lens is R4, which satisfies the following relationship:
  • the on-axis distance between the image side of the third lens and the object side of the fourth lens is d6, and the on-axis thickness of the third lens is d5, which satisfies the following relationship:
  • the radius of curvature of the object side surface of the first lens is R1
  • the radius of curvature of the image side surface of the first lens is R2
  • the axial thickness of the first lens is d1
  • the total optical length of the imaging optical lens is TTL, satisfies the following relationship:
  • the axial thickness of the second lens is d3, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship:
  • the radius of curvature of the object side of the third lens is R5
  • the radius of curvature of the image side of the third lens is R6
  • the axial thickness of the third lens is d5
  • the optical The total length is TTL, which satisfies the following relationship:
  • the focal length of the fourth lens is f4
  • the curvature radius of the image side of the fourth lens is R8
  • the axial thickness of the fourth lens is d7
  • the total optical length of the imaging optical lens is TTL, which satisfies The following relationship:
  • the focal length of the fifth lens is f5
  • 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
  • the on-axis thickness of the fifth lens is d9
  • the total optical length of the camera optical lens is TTL, which satisfies the following relationship:
  • the focal length of the sixth lens is f6, the radius of curvature of the object side of the sixth lens is R11, the radius of curvature of the image side of the sixth lens is R12, and the on-axis thickness of the sixth lens is d11 ,
  • the total optical length of the camera optical lens is TTL, which satisfies the following relationship:
  • the focal length of the seventh lens is f7
  • the radius of curvature of the object side of the seventh lens is R13
  • the radius of curvature of the image side of the seventh lens is R14
  • the on-axis thickness of the seventh lens is d13
  • the total optical length of the camera optical lens is TTL, which satisfies the following relationship:
  • the imaging optical lens according to the present invention has good optical performance, and has the characteristics of large aperture, wide angle, and ultra-thinness, and is especially suitable for mobile phones composed of high-pixel CCD, CMOS and other imaging elements Camera lens assembly and WEB camera lens.
  • FIG. 1 is a schematic diagram of the structure of the imaging optical lens of the first embodiment
  • FIG. 2 is a schematic diagram of 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 diagram of the structure of the imaging optical lens of the second embodiment
  • FIG. 6 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 5;
  • FIG. 7 is a schematic diagram of chromatic aberration of magnification 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 diagram of the structure of the imaging optical lens of the third embodiment.
  • FIG. 10 is a schematic diagram of 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. 1 shows an imaging optical lens 10 according to a first embodiment of the present invention.
  • the imaging optical lens 10 includes seven lenses. Specifically, the imaging optical lens 10 includes in order from the object side to the image side: an aperture S1, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a third lens with negative refractive power. Lens L3, fourth lens L4 with positive refractive power, fifth lens L5 with positive refractive power, sixth lens L6 with positive refractive power, and seventh lens L7 with negative refractive power.
  • An optical element such as an optical filter GF may be provided between the seventh lens L7 and the image plane Si.
  • the focal length of the first lens L1 is defined as f1
  • the overall focal length of the imaging optical lens 10 is f, which satisfies the following relationship: 0.85 ⁇ f1/f ⁇ 1.00.
  • the ratio of the focal length of the first lens L1 to the focal length of the entire imaging optical lens is specified, which helps to improve the performance of the optical system within the range of f1/f.
  • the second lens L2 has a negative refractive power, which is beneficial to correct system aberrations and improve imaging quality.
  • the focal length of the third lens L3 is defined as f3, and the focal length of the second lens L2 is defined as f2, and the following relationship is satisfied: 1.50 ⁇ f3/f2 ⁇ 5.00.
  • f3/f2 satisfies the condition, the optical power of the second lens L2 and the third lens L3 can be effectively allocated, and the aberration of the optical system can be corrected, thereby improving the imaging quality.
  • the curvature radius of the object side surface of the fourth lens L4 is defined as R7, and the axial thickness of the fourth lens L4 is d7, and the following relationship is satisfied: 3.00 ⁇ R7/d7 ⁇ 7.00.
  • R7/d7 meets the conditions, the degree of deflection of the light passing through the lens can be eased, and aberrations can be effectively reduced.
  • the curvature radius of the object side surface of the second lens L2 is defined as R3, and the curvature radius of the image side surface of the second lens L2 is defined as R4, and the following relationship is satisfied: 0.35 ⁇ (R3+R4)/(R3-R4) ⁇ 2.60.
  • the shape of the second lens L2 is specified, which facilitates lens molding.
  • the on-axis distance from the image side of the third lens L3 to the object side of the fourth lens L4 as d6, and the on-axis thickness of the third lens L3 as d5, which satisfies the following relationship: 0.85 ⁇ d6/d5 ⁇ 1.50 .
  • the ratio of the air separation distance between the third lens L3 and the fourth lens L4 to the core thickness of the third lens L3 is specified, which is helpful for lens processing and lens assembly within the range of d6/d5.
  • the total optical length of the imaging optical lens 10 is defined as TTL, and the axial thickness of the first lens L1 is d1, which satisfies the following relational expression: 0.05 ⁇ d1/TTL ⁇ 0.17. Within the range of the conditional expression, it is beneficial to realize ultra-thin ⁇ .
  • the focal length of the second lens L2 is defined as f2, which satisfies the following relationship: -4.71 ⁇ f2/f ⁇ -1.06.
  • the on-axis thickness of the second lens L2 is defined as d3, which satisfies the following relational expression: 0.02 ⁇ d3/TTL ⁇ 0.08. Within the range of the conditional expression, it is beneficial to realize ultra-thinness.
  • the focal length of the third lens L3 as f3, and satisfy the following relational expression: -15.81 ⁇ f3/f ⁇ -2.44.
  • the system has better imaging quality and lower sensitivity .
  • the curvature radius of the object side surface of the third lens L3 as R5
  • the curvature radius of the image side surface of the third lens L3 as R6, satisfying the following relationship: 4.07 ⁇ (R5+R6)/(R5-R6) ⁇ 23.24
  • the shape of the third lens L3 can be effectively controlled, which facilitates the molding of the third lens L3, and avoids molding defects and stress caused by the excessive surface curvature of the third lens L3.
  • the on-axis thickness of the third lens L3 is defined as d5, which satisfies the following relational expression: 0.02 ⁇ d5/TTL ⁇ 0.06. Within the range of the conditional expression, it is beneficial to realize ultra-thinness.
  • the focal length of the fourth lens L4 is defined as f4, which satisfies the following relationship: 0.57 ⁇ f4/f ⁇ 2.80.
  • the reasonable distribution of optical power enables the system to have better imaging quality and lower sensitivity.
  • the radius of curvature of the object side surface of the fourth lens L4 as R7
  • the radius of curvature of the image side surface of the fourth lens L4 as R8, and satisfy the following relationship: -1.27 ⁇ (R7+R8)/(R7-R8) ⁇ -0.34.
  • the shape of the fourth lens L4 is specified.
  • the on-axis thickness of the fourth lens L4 is defined as d7, which satisfies the following relational formula: 0.07 ⁇ d7/TTL ⁇ 0.29. Within the range of the conditional formula, it is beneficial to realize ultra-thinness.
  • the focal length of the fifth lens L5 is defined as f5, which satisfies the following relationship: -5.85 ⁇ f5/f ⁇ -1.50.
  • the limitation of the fifth lens L5 can effectively smooth the light angle of the imaging lens and reduce the tolerance sensitivity.
  • the shape of the fifth lens L5 is stipulated.
  • the condition is within the range, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of the off-axis angle of view.
  • the on-axis thickness of the fifth lens L5 is defined as d9, which satisfies the following relational expression: 0.02 ⁇ d9/TTL ⁇ 0.08. Within the range of the conditional expression, it is beneficial to realize ultra-thinness.
  • the focal length of the sixth lens L6 is defined as f6, which satisfies the following relational expression: 0.69 ⁇ f6/f ⁇ 2.66. Within the range of the conditional expression, through the reasonable distribution of the optical power, the system has better imaging quality and lower Sensitivity.
  • the radius of curvature of the object side surface of the sixth lens L6 is R11
  • the radius of curvature of the image side surface of the sixth lens L6 is R12
  • the following relationship is satisfied-5.87 ⁇ (R11+R12)/(R11-R12) ⁇ - 1.68.
  • the shape of the sixth lens L6 is stipulated. Within the scope of the conditional formula, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of the off-axis angle of view.
  • the on-axis thickness of the sixth lens L6 is d11, which satisfies the following relational expression: 0.04 ⁇ d11/TTL ⁇ 0.13. Within the range of the conditional expression, it is beneficial to realize ultra-thinness.
  • the focal length of the seventh lens L7 is defined as f7, which satisfies the following relational formula: -2.08 ⁇ f7/f ⁇ -0.65. Within the scope of the conditional formula, through the reasonable distribution of optical power, the system has better imaging quality and Lower sensitivity.
  • the curvature radius of the object side surface of the seventh lens L7 is R13
  • the curvature radius of the image side surface of the seventh lens L7 is R14
  • the following relationship is satisfied: 0.74 ⁇ (R13+R14)/(R13-R14) ⁇ 2.65 .
  • What is specified is the shape of the seventh lens L7.
  • the on-axis thickness of the seventh lens L7 is d13, which satisfies the following relational expression: 0.05 ⁇ d13/TTL ⁇ 0.14. Within the range of the conditional expression, it is beneficial to realize ultra-thinness.
  • the imaging optical lens 10 can achieve the design requirements of large aperture, wide-angle, and ultra-thin while having good optical imaging performance; according to the characteristics of the imaging optical lens 10, the imaging optical lens 10
  • the optical lens 10 is particularly suitable for mobile phone camera lens assemblies and WEB camera lenses composed of high-resolution CCD, CMOS, and other imaging elements.
  • the imaging optical lens 10 of the present invention will be described below with examples.
  • the symbols described in each example are as follows.
  • the unit of focal length, on-axis distance, radius of curvature, on-axis thickness, inflection point position, stagnation point position is mm.
  • TTL total optical length (the on-axis distance from the object side of the first lens L1 to the image plane Si), the unit is mm;
  • the object side and/or the image side of the lens may also be provided with inflection points and/or stagnation points to meet high-quality imaging requirements.
  • inflection points and/or stagnation points may also be provided with inflection points and/or stagnation points to meet high-quality imaging requirements.
  • Table 1 and Table 2 show design data of the imaging optical lens 10 of the first embodiment of the present invention.
  • R The radius of curvature of the optical surface, when the lens is the central radius of curvature
  • R1 the radius of curvature of the object side surface of the first lens L1;
  • R2 the radius of curvature of the image side surface of the first lens L1;
  • R3 the radius of curvature of the object side surface of the second lens L2;
  • R4 the radius of curvature of the image side surface of the second lens L2;
  • R5 the radius of curvature of the object side surface of the third lens L3;
  • R6 the radius of curvature of the image side surface of the third lens L3;
  • R7 the radius of curvature of the object side surface of the fourth lens L4;
  • R8 the radius of curvature of the image side surface of the fourth lens L4;
  • R9 the radius of curvature of the object side surface of the fifth lens L5;
  • R10 the radius of curvature of the image side surface of the fifth lens L5;
  • R11 the radius of curvature of the object side surface of the sixth lens L6;
  • R12 the radius of curvature of the image side surface of the sixth lens L6;
  • R13 the radius of curvature of the object side surface of the seventh lens L7;
  • R14 the radius of curvature of the image side surface of the seventh lens L7;
  • R15 The curvature radius of the object side of the optical filter GF
  • R16 the radius of curvature of the image side surface of the optical filter GF
  • D the on-axis thickness of the lens and the on-axis distance between the lenses
  • D2 the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;
  • D4 the on-axis distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;
  • D6 the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;
  • D8 the on-axis distance from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;
  • D10 the on-axis distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;
  • D12 the on-axis distance from the image side surface of the sixth lens L6 to the object side surface of the seventh lens L7;
  • D14 the on-axis distance from the image side surface of the seventh lens L7 to the object side surface of the optical filter GF;
  • D16 the on-axis distance from the image side surface of the optical filter GF to the image surface
  • Nd the refractive index of d-line
  • Nd1 the refractive index of the d-line of the first lens L1;
  • Nd2 the refractive index of the d-line of the second lens L2
  • Nd3 the refractive index of the d-line of the third lens L3
  • Nd4 the refractive index of the d-line of the fourth lens L4
  • Nd5 the refractive index of the d-line of the fifth lens L5;
  • Nd6 the refractive index of the d-line of the sixth lens L6
  • Nd7 the refractive index of the d-line of the seventh lens L7;
  • Ndg the refractive index of the d-line of the optical filter GF
  • ⁇ d Abbe number
  • ⁇ 1 Abbe number of the first lens L1;
  • ⁇ 2 Abbe number of the second lens L2
  • ⁇ 3 Abbe number of the third lens L3
  • ⁇ 4 Abbe number of the fourth lens L4
  • ⁇ 5 Abbe number of the fifth lens L5;
  • ⁇ 6 Abbe number of the sixth lens L6
  • ⁇ 7 Abbe number of the seventh lens L7;
  • ⁇ g Abbe number of optical filter GF.
  • Table 2 shows aspheric surface data of each lens in the imaging optical lens 10 of the first embodiment of the present invention.
  • k is the conic coefficient
  • A4, A6, A8, A10, A12, A14, A16, A18, A20 are aspherical coefficients.
  • the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1).
  • the present invention is not limited to the aspheric polynomial form represented by the formula (1).
  • Table 3 and Table 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, P1R2 represent the object side and image side of the first lens L1
  • P2R1, P2R2 represent the object side and image side of the second lens L2
  • P3R1, P3R2 represent the object side and image side of the third lens L3,
  • P4R1, P4R2 represent the object side and image side of the fourth lens L4
  • P5R1, P5R2 represent the object side and image side of the fifth lens L5
  • P6R1, P6R2 represent the object side and image side of the sixth lens L6,
  • P7R1 P7R2 represents the object side and image side of the seventh lens L7, respectively.
  • the corresponding data in the “reflection 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 data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • FIG. 2 and 3 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 436 nm, 486 nm, 546 nm, 588 nm, and 656 nm pass through the imaging optical lens 10 of the first embodiment.
  • Fig. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 546 nm after passing 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 meridian direction. .
  • Table 13 shows the values corresponding to the various values in the first, second, and third embodiments and the parameters specified in the conditional expressions.
  • the first embodiment satisfies each conditional expression.
  • the entrance pupil diameter of the imaging optical lens 10 is 2.560 mm
  • the full-field image height is 3.475 mm
  • the diagonal field angle is 77.60°, which makes the imaging optical lens 10 wide-angle , Ultra-thin, large aperture, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.
  • the second embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment. Please refer to FIG. 5 for the structure of the imaging optical lens 20 of the second embodiment. Only the differences are listed below.
  • Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.
  • Table 6 shows aspheric surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
  • Table 7 and Table 8 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 20 of the second embodiment of the present invention.
  • FIG. 6 and 7 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 436 nm, 486 nm, 546 nm, 588 nm, and 656 nm pass through the imaging optical lens 20 of the second embodiment.
  • FIG. 8 shows a schematic diagram of field curvature and distortion of light with a wavelength of 546 nm after passing through the imaging optical lens 20 of the second embodiment.
  • the second embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 2.560 mm
  • the full-field image height is 3.475 mm
  • the diagonal field angle is 77.60°, which makes the imaging optical lens 20 wide-angle, Ultra-thin, large aperture, fully compensated for on-axis and off-axis chromatic aberration, and has excellent optical characteristics.
  • the third embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment. Please refer to FIG. 9 for the structure of the imaging optical lens 30 of the third embodiment. Only the differences are listed below.
  • Table 9 and Table 10 show design data of the imaging optical lens 30 of the third embodiment of the present invention.
  • Table 10 shows the aspheric surface data of each lens in 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 third embodiment of the present invention.
  • FIG. 10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 436 nm, 486 nm, 546 nm, 588 nm, and 656 nm pass through the imaging optical lens 30 of the third embodiment.
  • FIG. 12 shows a schematic diagram of field curvature and distortion of light with a wavelength of 546 nm after passing through the imaging optical lens 30 of the third embodiment.
  • the entrance pupil diameter of the imaging optical lens is 2.560mm
  • the full-field image height is 3.475mm
  • the diagonal field angle is 77.60°, which makes the imaging optical lens 30 wide-angle and Ultra-thin, large aperture, fully compensated for on-axis and off-axis chromatic aberration, and has excellent optical characteristics.
  • Fno is the aperture focal number of the imaging optical lens.

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Abstract

一种摄像光学镜头(10,20,30)，摄像光学镜头(10,20,30)自物侧至像侧依序包含：具有正屈折力的第一透镜(L1)，具有负屈折力的第二透镜(L2)，具有负屈折力的第三透镜(L3)，具有正屈折力的第四透镜(L4)，具有负屈折力的第五透镜(L5)，具有正屈折力的第六透镜(L6)，以及具有负屈折力的第七透镜(L7)；第一透镜的焦距为f1，摄像光学镜头(10,20,30)整体的焦距为f，第二透镜(L2)的焦距为f2，第三透镜(L3)的焦距为f3，第四透镜(L4)物侧面的曲率半径为R7，第四透镜(L4)的轴上厚度为d7，满足下列关系式：0.85≤f1/f≤1.00；1.50≤f3/f2≤5.00；3.00≤R7/d7≤7.00。摄像光学镜头(10,20,30)具有良好光学性能的同时，满足大光圈、广角化、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-Oxide Semiconductor 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。
 技术问题
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、四片式甚至是五片式、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，导致透镜结构在具有良好光学性能的同时，无法满足大光圈、超薄化、广角化的设计要求｡ 
 技术解决方案
针对上述问题，本发明的目的在于提供一种摄像光学镜头，其具有良好光学性能的同时，满足大光圈、超薄化、广角化的设计要求。
为解决上述技术问题，本发明的实施方式提供了一种所述摄像光学镜头，自物侧至像侧依序包含：具有正屈折力的第一透镜，具有负屈折力的第二透镜，具有负屈折力的第三透镜，具有正屈折力的第四透镜，具有负屈折力的第五透镜，具有正屈折力的第六透镜，以及具有负屈折力的第七透镜；
所述第一透镜的焦距为f1，所述摄像光学镜头整体的焦距为f，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第四透镜物侧面的曲率半径为R7，所述第四透镜的轴上厚度为d7，满足下列关系式：
0.85≤f1/f≤1.00；
1.50≤f3/f2≤5.00；
3.00≤R7/d7≤7.00。
优选的，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，满足下列关系式：
0.35≤(R3+R4)/(R3-R4)≤2.60。
优选的，所述第三透镜像侧面到所述第四透镜物侧面的轴上距离为d6，所述第三透镜的轴上厚度为d5，满足下列关系式：
0.85≤d6/d5≤1.50。
优选的，所述第一透镜物侧面的曲率半径为R1，所述第一透镜像侧面的曲率半径为R2，所述第一透镜的轴上厚度为d1，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
-1.86≤(R1+R2)/(R1-R2)≤-0.56；
0.05≤d1/TTL≤0.17。
优选的，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
-4.71≤f2/f≤-1.06；
0.02≤d3/TTL≤0.08。
优选的，所述第三透镜的物侧面的曲率半径为R5，所述第三透镜的像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
-15.81≤f3/f≤-2.44；
4.07≤(R5+R6)/(R5-R6)≤23.24；
0.02≤d5/TTL≤0.06。
优选的，所述第四透镜的焦距为f4，所述第四透镜像侧面的曲率半径为R8，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
0.57≤f4/f≤2.80；
-1.27≤(R7+R8)/(R7-R8)≤-0.34；
0.07≤d7/TTL≤0.29。
优选的，所述第五透镜的焦距为f5，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，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
-5.85≤f5/f≤-1.50；
-14.35≤(R9+R10)/(R9-R10)≤-3.34；
0.02≤d9/TTL≤0.08。
优选的，所述第六透镜的焦距为f6，所述第六透镜物侧面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
0.69≤f6/f≤2.66；
-5.87≤(R11+R12)/(R11-R12)≤-1.68；
0.04≤d11/TTL≤0.13。
优选的，所述第七透镜的焦距为f7，所述第七透镜物侧面的曲率半径为R13，所述第七透镜像侧面的曲率半径为R14，所述第七透镜的轴上厚度为d13，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
-2.08≤f7/f≤-0.65；
0.74≤(R13+R14)/(R13-R14)≤2.65；
0.05≤d13/TTL≤0.14。
 有益效果
本发明的有益效果在于: 根据本发明的摄像光学镜头具有良好光学性能，且具有大光圈、广角化、超薄化的特性，尤其适用于由高像素用的CCD、CMOS等摄像元件构成的手机摄像镜头组件和WEB摄像镜头｡
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是实施方式一的摄像光学镜头的结构示意图；
图2是图1所示的摄像光学镜头的轴向像差示意图；
图3是图1所示的摄像光学镜头的倍率色差示意图；
图4是图1所示的摄像光学镜头的场曲及畸变示意图；
图5是实施方式二的摄像光学镜头的结构示意图；
图6是图5所示的摄像光学镜头的轴向像差示意图；
图7是图5所示的摄像光学镜头的倍率色差示意图；
图8是图5所示的摄像光学镜头的场曲及畸变示意图；
图9是实施方式三的摄像光学镜头的结构示意图；
图10是图9所示的摄像光学镜头的轴向像差示意图；
图11是图9所示的摄像光学镜头的倍率色差示意图；
图12是图9所示的摄像光学镜头的场曲及畸变示意图。
 本发明的实施方式
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。
（第一实施方式）
请参考附图，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、具有正屈折力的第一透镜L1、具有负屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有正屈折力的第五透镜L5、具有正屈折力的第六透镜L6以及具有负屈折力的第七透镜L7。第七透镜L7和像面Si之间可设置有光学过滤片（filter）GF等光学元件。
在本实施方式中，定义所述第一透镜L1的焦距为f1，所述摄像光学镜头10整体的焦距为f，满足下列关系式：0.85≤f1/f≤1.00。规定了所述第一透镜L1的焦距与所述摄像光学镜头整体的焦距的比值，在f1/f范围内有助于提高光学系统性能。
所述第二透镜L2具有负屈折力，有利于系统像差校正，提高成像质量。
定义所述第三透镜L3的焦距为f3，所述第二透镜L2的焦距为f2，满足下列关系式：1.50≤f3/f2≤5.00。当f3/f2满足条件时，可有效分配所述第二透镜L2、所述第三透镜L3的光焦度，对光学系统的像差进行校正，进而提升成像品质。
定义所述第四透镜L4物侧面的曲率半径为R7，所述第四透镜L4的轴上厚度为d7，满足下列关系式：3.00≤R7/d7≤7.00。当R7/d7满足条件时，可以缓和光线经过镜片的偏折程度，有效减小像差。
定义所述第二透镜L2物侧面的曲率半径为R3，所述第二透镜L2像侧面的曲率半径为R4，满足下列关系式：0.35≤(R3+R4)/(R3-R4)≤2.60。规定了所述第二透镜L2的形状，有利于镜片成型。
定义所述第三透镜L3像侧面到所述第四透镜L4物侧面的轴上距离为d6，所述第三透镜L3的轴上厚度为d5，满足下列关系式：0.85≤d6/d5≤1.50。规定了所述第三透镜L3与所述第四透镜L4间空气间隔距离和所述第三透镜L3芯厚的比值，在d6/d5范围内有助于镜片的加工和镜头的组装。
定义所述第一透镜L1物侧面的曲率半径为R1，所述第一透镜L1像侧面的曲率半径为R2，满足下列关系式：-1.86≤(R1+R2)/(R1-R2)≤-0.56，在条件式范围内，合理控制第一透镜L1的形状，使得第一透镜L1能够有效地校正系统球差。
定义所述摄像光学镜头10的光学总长为TTL，所述第一透镜L1的轴上厚度为d1，满足下列关系式：0.05≤d1/TTL≤0.17，在条件式范围内，有利于实现超薄化。
定义所述第二透镜L2的焦距为f2，满足下列关系式：-4.71≤f2/f≤-1.06，通过将所述第二透镜L2的负光焦度控制在合理范围，有利于矫正光学系统的像差。
定义所述第二透镜L2的轴上厚度为d3，满足下列关系式：0.02≤d3/TTL≤0.08，在条件式范围内，有利于实现超薄化。
定义所述第三透镜L3的焦距为f3，且满足下列关系式：-15.81≤f3/f≤-2.44，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
定义所述第三透镜L3物侧面的曲率半径为R5，以及所述第三透镜L3像侧面的曲率半径为R6，满足下列关系式：4.07≤(R5+R6)/(R5-R6)≤23.24，在条件式范围内，可有效控制第三透镜L3的形状，有利于第三透镜L3成型，并避免因第三透镜L3的表面曲率过大而导致成型不良与应力产生。
定义所述第三透镜L3的轴上厚度为d5，满足下列关系式：0.02≤d5/TTL≤0.06，在条件式范围内，有利于实现超薄化。
定义所述第四透镜L4的焦距为f4，满足下列关系式：0.57≤f4/f≤2.80，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
定义所述第四透镜L4物侧面的曲率半径为R7，以及所述第四透镜L4像侧面的曲率半径为R8，且满足下列关系式：-1.27≤(R7+R8)/(R7-R8)≤-0.34。规定了第四透镜L4的形状，在条件式范围内，随着超薄化、广角化的发展，有利于补正轴外画角的像差等问题。
定义所述第四透镜L4的轴上厚度为d7，满足下列关系式：0.07≤d7/TTL≤0.29，在条件式范围内，有利于实现超薄化。
定义所述第五透镜L5的焦距为f5，满足下列关系式：-5.85≤f5/f≤-1.50，对第五透镜L5的限定可有效的使得摄像镜头的光线角度平缓，降低公差敏感度。
定义所述第五透镜L5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：-14.35≤(R9+R10)/(R9-R10)≤-3.34，规定的是第五透镜L5的形状，在条件范围内时，随着超薄广角化发展，有利于补正轴外画角的像差等问题。
定义所述第五透镜L5的轴上厚度为d9，满足下列关系式：0.02≤d9/TTL≤0.08，在条件式范围内，有利于实现超薄化。
定义所述第六透镜L6的焦距为f6，满足下列关系式：0.69≤f6/f≤2.66，在条件式范围内，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
所述第六透镜L6物侧面的曲率半径为R11，以及所述第六透镜L6像侧面的曲率半径为R12，且满足下列关系式-5.87≤(R11+R12)/(R11-R12)≤-1.68，规定的是第六透镜L6的形状，在条件式范围内，随着超薄广角化发展，有利于补正轴外画角的像差等问题。
所述第六透镜L6的轴上厚度为d11，满足下列关系式：0.04≤d11/TTL≤0.13，在条件式范围内，有利于实现超薄化。
定义所述第七透镜L7的焦距为f7，满足下列关系式：-2.08≤f7/f≤-0.65，在条件式范围内，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
所述第七透镜L7物侧面的曲率半径为R13，以及所述第七透镜L7像侧面的曲率半径为R14，且满足下列关系式：0.74≤(R13+R14)/(R13-R14)≤2.65。规定的是第七透镜L7的形状，在条件式范围内，随着超薄广角化发展，有利于补正轴外画角的像差等问题。
所述第七透镜L7的轴上厚度为d13，满足下列关系式：0.05≤d13/TTL≤0.14，在条件式范围内，有利于实现超薄化。
即当满足上述关系时，使得摄像光学镜头10实现了在具有良好光学成像性能的同时，还能满足大光圈、广角化、超薄化的设计要求；根据该摄像光学镜头10的特性，该摄像光学镜头10尤其适用于由高像素用的CCD、CMOS等摄像元件构成的手机摄像镜头组件和WEB摄像镜头。
下面将用实例进行说明本发明的摄像光学镜头10。各实例中所记载的符号如下所示。焦距、轴上距离、曲率半径、轴上厚度、反曲点位置、驻点位置的单位为mm。
TTL :光学总长(第一透镜L1的物侧面到像面Si的轴上距离)，单位为mm；
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。
表1、表2示出本发明第一实施方式的摄像光学镜头10的设计数据。
【表1】
Figure 676019dest_path_image001
其中，各符号的含义如下。
 S1： 光圈；
 R：  光学面的曲率半径、透镜时为中心曲率半径；
 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：光学过滤片GF的物侧面的曲率半径；
 R16：光学过滤片GF的像侧面的曲率半径；
 d ： 透镜的轴上厚度与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：光学过滤片GF的轴上厚度；
 d16：光学过滤片GF的像侧面到像面的轴上距离；
 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：光学过滤片GF的d线的折射率；
 νd：阿贝数；
 ν1：第一透镜L1的阿贝数；
 ν2：第二透镜L2的阿贝数；
 ν3：第三透镜L3的阿贝数；
 ν4：第四透镜L4的阿贝数；
 ν5：第五透镜L5的阿贝数；
 ν6：第六透镜L6的阿贝数；
 ν7：第七透镜L7的阿贝数；
 νg：光学过滤片GF的阿贝数。
表2示出本发明第一实施方式的摄像光学镜头10中各透镜的非球面数据。
【表2】
Figure 51637dest_path_image002
其中，k是圆锥系数，A4、A6、A8、A10、A12、A14、A16、A18、A20是非球面系数。
y=(x 2/R)/[1+{1-(k+1)(x 2/R 2)} 1/2]+A4x 4+A6x 6+A8x 8+A10x 10+A12x 12+A14x 14+A16x 16+A18x 18+A20x 20                                               （1）
为方便起见，各个透镜面的非球面使用上述公式（1）中所示的非球面。但是，本发明不限于该公式（1）表示的非球面多项式形式。
表3、表4示出本发明第一实施方式的摄像光学镜头10中各透镜的反曲点以及驻点设计数据。其中，P1R1、P1R2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】
Figure 409937dest_path_image003
【表4】
Figure 820189dest_path_image004
图2、图3分别示出了波长为436nm、486nm、546nm、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546nm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。
后出现的表13示出各实施方式一、二、三中各种数值与条件式中已规定的参数所对应的值。
如表13所示，第一实施方式满足各条件式。
在本实施方式中，所述摄像光学镜头10的入瞳直径为2.560mm，全视场像高为3.475mm，对角线方向的视场角为77.60°，使得所述摄像光学镜头10广角化、超薄化、大光圈，其轴上、轴外色像差充分补正，且具有优秀的光学特征。
（第二实施方式）
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，该第二实施方式的摄像光学镜头20的结构形式请参图5所示，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光学镜头20的设计数据。
【表5】
Figure 871322dest_path_image005
表6示出本发明第二实施方式的摄像光学镜头20中各透镜的非球面数据。
【表6】
Figure 722517dest_path_image006
表7、表8示出本发明第二实施方式的摄像光学镜头20中各透镜的反曲点以及驻点设计数据。
【表7】
Figure 150087dest_path_image007
【表8】
Figure 149267dest_path_image008
图6、图7分别示出了波长为436nm、486nm、546nm、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546nm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。
如表13所示，第二实施方式满足各条件式｡
在本实施方式中，所述摄像光学镜头的入瞳直径为2.560mm，全视场像高为3.475mm，对角线方向的视场角为77.60°，使得所述摄像光学镜头20广角化、超薄化、大光圈，其轴上、轴外色像差充分补正，且具有优秀的光学特征。
（第三实施方式）
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，该第三实施方式的摄像光学镜头30的结构形式请参图9所示，以下只列出不同点。
表9、表10示出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 636881dest_path_image009
表10示出本发明第三实施方式的摄像光学镜头30中各透镜的非球面数据。
【表10】
Figure 252670dest_path_image010
表11、表12示出本发明第三实施方式的摄像光学镜头30中各透镜的反曲点以及驻点设计数据。
【表11】
Figure 218352dest_path_image011
【表12】
Figure 337617dest_path_image012
图10、图11分别示出了波长为436nm、486nm、546nm、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546nm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。
以下表13按照上述条件式列出了本实施方式中对应各条件式的数值。显然，本实施方式的摄像光学镜头满足上述的条件式。
在本实施方式中，所述摄像光学镜头的入瞳直径为2.560mm，全视场像高为3.475mm，对角线方向的视场角为77.60°，使得所述摄像光学镜头30广角化、超薄化、大光圈，其轴上、轴外色像差充分补正，且具有优秀的光学特征｡
【表13】
Figure 464973dest_path_image013
其中，Fno为摄像光学镜头的光圈焦数。
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 (10)

  1. 一种摄像光学镜头，其特征在于，所述摄像光学镜头，自物侧至像侧依序包含：具有正屈折力的第一透镜，具有负屈折力的第二透镜，具有负屈折力的第三透镜，具有正屈折力的第四透镜，具有负屈折力的第五透镜，具有正屈折力的第六透镜，以及具有负屈折力的第七透镜；
    所述第一透镜的焦距为f1，所述摄像光学镜头整体的焦距为f，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第四透镜物侧面的曲率半径为R7，所述第四透镜的轴上厚度为d7，满足下列关系式：
    0.85≤f1/f≤1.00；
    1.50≤f3/f2≤5.00；
    3.00≤R7/d7≤7.00。
  2. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，满足下列关系式：
    0.35≤(R3+R4)/(R3-R4)≤2.60。
  3. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第三透镜像侧面到所述第四透镜物侧面的轴上距离为d6，所述第三透镜的轴上厚度为d5，满足下列关系式：
    0.85≤d6/d5≤1.50。
  4. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第一透镜物侧面的曲率半径为R1，所述第一透镜像侧面的曲率半径为R2，所述第一透镜的轴上厚度为d1，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    -1.86≤(R1+R2)/(R1-R2)≤-0.56；
    0.05≤d1/TTL≤0.17。
  5. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    -4.71≤f2/f≤-1.06；
    0.02≤d3/TTL≤0.08。
  6. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第三透镜的物侧面的曲率半径为R5，所述第三透镜的像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    -15.81≤f3/f≤-2.44；
    4.07≤(R5+R6)/(R5-R6)≤23.24；
    0.02≤d5/TTL≤0.06。
  7. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第四透镜的焦距为f4，所述第四透镜像侧面的曲率半径为R8，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    0.57≤f4/f≤2.80；
    -1.27≤(R7+R8)/(R7-R8)≤-0.34；
    0.07≤d7/TTL≤0.29。
  8. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第五透镜的焦距为f5，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，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    -5.85≤f5/f≤-1.50；
    -14.35≤(R9+R10)/(R9-R10)≤-3.34；
    0.02≤d9/TTL≤0.08。
  9. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第六透镜的焦距为f6，所述第六透镜物侧面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    0.69≤f6/f≤2.66；
    -5.87≤(R11+R12)/(R11-R12)≤-1.68；
    0.04≤d11/TTL≤0.13。
  10. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第七透镜的焦距为f7，所述第七透镜物侧面的曲率半径为R13，所述第七透镜像侧面的曲率半径为R14，所述第七透镜的轴上厚度为d13，所述摄像光学镜头的光学总长为TTL，满足下列关系式：
    -2.08≤f7/f≤-0.65；
    0.74≤(R13+R14)/(R13-R14)≤2.65；
    0.05≤d13/TTL≤0.14。
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