WO2021031239A1 - 摄像光学镜头 - Google Patents

摄像光学镜头 Download PDF

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Publication number
WO2021031239A1
WO2021031239A1 PCT/CN2019/103619 CN2019103619W WO2021031239A1 WO 2021031239 A1 WO2021031239 A1 WO 2021031239A1 CN 2019103619 W CN2019103619 W CN 2019103619W WO 2021031239 A1 WO2021031239 A1 WO 2021031239A1
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Prior art keywords
lens
imaging optical
optical lens
ttl
curvature
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Ceased
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PCT/CN2019/103619
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English (en)
French (fr)
Inventor
朱军彦
王康
寺冈弘之
陈佳
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AAC Optics Changzhou Co Ltd
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AAC Optics Changzhou Co Ltd
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Publication of WO2021031239A1 publication Critical patent/WO2021031239A1/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 -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only

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 traditional miniature lens mounted in the mobile phone camera mostly adopts a three-element, four-element or even a five-element lens structure. Although these lenses have good optical performance, the setting of the lens focal length and the setting of the lens shape are still unreasonable. As a result, the lens structure has good optical performance and cannot meet the requirements of large aperture and ultra-thin. , Wide-angle design requirements.
  • 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.
  • An imaging optical lens sequentially includes from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, and The fourth lens with refractive power, and the fifth lens with negative refractive power;
  • the focal length of the imaging optical lens is f
  • the focal length of the first lens is f1
  • the focal length of the second lens is f2
  • the focal length of the third lens is f3
  • the focal length of the fifth lens is f5
  • the curvature radius of the object side surface of the second lens is R3, the curvature radius of the second lens image side surface is R4, the curvature radius of the fourth lens object side surface is R7, and the curvature radius of the fourth lens image side surface is R8, 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, and the following relationship is satisfied:
  • the axial thickness of the first lens is d1
  • the total optical length of the imaging optical lens is TTL
  • the radius of curvature of the object side of the first lens is R1
  • the radius of curvature of the image side of the first lens is R2, and satisfies the following relationship: 0.06 ⁇ d1/TTL ⁇ 0.20; -3.37 ⁇ (R1+R2)/(R1-R2) ⁇ -1.01; 0.46 ⁇ f1/f ⁇ 1.40.
  • the axial thickness of the second lens is d3, and the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: 0.03 ⁇ d3/TTL ⁇ 0.08.
  • the axial thickness of the third lens is d5
  • the total optical length of the imaging optical lens is TTL
  • 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, and satisfies the following relationship: 0.04 ⁇ d5/TTL ⁇ 0.16; 0.55 ⁇ (R5+R6)/(R5-R6) ⁇ 5.17.
  • the axial thickness of the fourth lens is d7
  • the total optical length of the imaging optical lens is TTL
  • the focal length of the fourth lens is f4
  • the following relationship is satisfied: 0.06 ⁇ d7/TTL ⁇ 0.18; 0.29 ⁇ f4/f ⁇ 1.04.
  • the axial thickness of the fifth lens is d9
  • the total optical length of the imaging optical lens is TTL
  • the focal length of the fifth lens is f5
  • the following relationship is satisfied: 0.04 ⁇ d9/TTL ⁇ 0.12; -1.08 ⁇ f5/f ⁇ -0.32.
  • the aperture F number of the imaging optical lens is FNO, and the following relational expression is satisfied: FNO ⁇ 2.11.
  • the field of view of the imaging optical lens is FOV, and satisfies the following relationship: FOV ⁇ 78.
  • the total optical length of the imaging optical lens is TTL
  • the image height of the imaging optical lens is IH
  • the imaging optical lens of the present invention has good optical performance, and has the characteristics of large aperture, wide-angle, and ultra-thin. It is especially suitable for high-pixel CCD and CMOS.
  • Mobile phone camera lens assembly and WEB camera lens composed of other imaging components.
  • FIG. 1 is a schematic structural diagram of an imaging optical lens according to a first embodiment of the present invention
  • 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 structural diagram of an imaging optical lens according to a second embodiment of the present invention.
  • 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 the 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 an imaging optical lens according to a third embodiment of the present invention.
  • 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 the 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 diagram of the structure of an imaging optical lens according to a fourth embodiment of the present invention.
  • FIG. 14 is a schematic diagram of 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. 1 shows an imaging optical lens 10 according to a first embodiment of the present invention.
  • the imaging optical lens 10 includes five lenses. Specifically, the imaging optical lens 10 includes an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in sequence from the object side to the image side.
  • optical elements such as an optical filter GF are provided between the fifth lens L5 and the image plane Si.
  • the optical filter GF can be a glass cover plate or an optical filter (filter), of course. In possible embodiments, the optical filter GF may also be arranged in other positions.
  • the first lens L1 has positive refractive power, its object side is convex, and its image side is concave;
  • the second lens L2 has negative refractive power, its object side is convex, and its image side is concave;
  • the third lens L3 has positive refractive power, its object side is concave, its image side is convex;
  • the fourth lens L4 has positive refractive power, its object side is concave, its image side is convex;
  • fifth lens L5 has negative refractive power, its object The side surface is concave, and the image side surface is concave.
  • the focal length of the first lens L1 is defined as f1
  • the focal length of the second lens L2 is defined as f2, which satisfies the following relationship: -0.50 ⁇ f1/f2 ⁇ -0.35; the focal length of the first lens L1 and The ratio of the focal length of the second lens L2 can effectively balance the spherical aberration and field curvature of the system within the scope of the conditional expression.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the third lens L3 is f3, which satisfies the following relationship: 5.00 ⁇ f3/f ⁇ 14.00; the focal length of the third lens L3 and the overall imaging optical lens 10 total The ratio between focal lengths. With this setting, the system has better imaging quality and lower sensitivity through reasonable allocation of focal lengths.
  • the focal length of the fifth lens L5 is f5, which satisfies the following relationship: -3.10 ⁇ (f2+f5)/f ⁇ -2.40; the sum of the focal lengths of the second lens L2 and the fifth lens L5 and the overall imaging optical lens are specified.
  • the ratio between 10 total focal lengths helps to improve system performance within the conditional range.
  • the curvature radius of the object side surface of the second lens L2 is R3, and the curvature radius of the image side surface of the second lens L2 is R4, which satisfies the following relationship: 3.00 ⁇ (R3+R4)/(R3-R4) ⁇ 4.00;
  • R3+R4/(R3-R4) ⁇ 4.00 When the shape of the second lens L2 is within this range, it is beneficial to correct the axial chromatic aberration.
  • the curvature radius of the object side surface of the fourth lens L4 is R7
  • the curvature radius of the image side surface of the fourth lens L4 is R8, which satisfies the following relationship: 1.20 ⁇ (R7+R8)/(R7-R8) ⁇ 1.30; stipulated
  • the shape of the fourth lens L4 can relax the degree of deflection of light passing through the lens within the range specified by the conditional expression, and effectively reduce aberrations.
  • the curvature radius of the object side surface of the fifth lens L5 is R9, and the curvature radius of the image side surface of the fifth lens L5 is R10, which satisfies the following relationship: 0.25 ⁇ (R9+R10)/(R9-R10) ⁇ 0.65;
  • the shape of the fifth lens L5 is within this range of conditions, which is beneficial to correct the aberration of the off-axis angle of view.
  • each lens (L1, L2, L3, L4, L5) with different refractive power is used, and the ratio of the focal length between the first lens L1 and the second lens L2, the first lens
  • the ratio between the focal length of the three lens L3 and the total focal length of the overall imaging optical lens 10 the ratio between the sum of the focal lengths of the second lens L2 and the fifth lens L5 and the overall focal length of the overall imaging optical lens 10
  • the first The shapes of the second lens L2, the fourth lens L4, and the fifth lens L5 help improve the performance of the optical system and meet the design requirements of ultra-thin and wide-angle.
  • the imaging optical lens 10 also satisfies the following relationship: -2.60 ⁇ f2/f ⁇ -1.90; the ratio between the focal length of the second lens L2 and the total focal length of the overall imaging optical lens 10 is specified. With this setting, the system has better imaging quality and lower sensitivity through reasonable allocation of focal lengths.
  • the on-axis thickness of the first lens L1 is defined as d1, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.06 ⁇ d1/TTL ⁇ 0.20, which is beneficial to realize ultra-thinness.
  • the curvature radius of the object side surface of the first lens L1 is R1, and the curvature radius of the image side surface of the first lens L1 is R2, and satisfies the following relationship: -3.37 ⁇ (R1+R2)/(R1-R2) ⁇ - 1.01; Reasonably control the shape of the first lens L1 so that the first lens L1 can effectively correct the spherical aberration of the system.
  • the imaging optical lens 10 also satisfies the following relational expression: 0.46 ⁇ f1/f ⁇ 1.40; within the specified range, the first lens L1 has an appropriate positive refractive power, which is beneficial to reduce system aberrations, and at the same time is beneficial to the lens Thinning and wide-angle development.
  • the on-axis thickness of the second lens L2 is defined as d3, the total optical length of the imaging optical lens 10 is TTL, and the following relationship is satisfied: 0.03 ⁇ d3/TTL ⁇ 0.08, which is beneficial to realize ultra-thinness.
  • the on-axis thickness of the third lens L3 is defined as d5, which satisfies the following relationship: 0.04 ⁇ d5/TTL ⁇ 0.16, which is beneficial to realize ultra-thinness.
  • the curvature radius of the side surface of the third lens object L3 is R5, and the curvature radius of the image side surface of the third lens L3 is R6, and the following relationship is satisfied: 0.55 ⁇ (R5+R6)/(R5-R6) ⁇ 5.17;
  • the shape of the third lens L3 is specified, and within the range specified by the conditional expression, the degree of deflection of the light passing through the lens can be relaxed, and aberrations can be effectively reduced.
  • the on-axis thickness of the fourth lens L4 is defined as d7, which satisfies the following relationship: 0.06 ⁇ d7/TTL ⁇ 0.18, which is beneficial to realize ultra-thinness.
  • the focal length of the fourth lens L4 is f4, and satisfies the following relational expression: 0.29 ⁇ f4/f ⁇ 1.04, which specifies the ratio of the focal length of the fourth lens L4 to the focal length of the system, which helps to improve the performance of the optical system within the scope of the conditional expression .
  • the on-axis thickness of the fifth lens L5 is defined as d9, which satisfies the following relationship: 0.04 ⁇ d9/TTL ⁇ 0.12, which is beneficial to realize ultra-thinness.
  • the focal length of the fifth lens L5 is f5, and satisfies the following relationship: -1.08 ⁇ f5/f ⁇ -0.32.
  • the limitation of the fifth lens L5 can effectively make the light angle of the imaging optical lens 10 smooth and reduce tolerance sensitivity degree.
  • the aperture F number of the imaging optical lens 10 is FNO, and the following relationship is satisfied: FNO ⁇ 2.11, large aperture, good imaging performance.
  • the field of view of the imaging optical lens 10 is FOV, and satisfies the following relationship: FOV ⁇ 78, which specifies the range of the field of view of the imaging optical lens 10, so that the system has a larger field of view and good imaging performance.
  • the total optical length of the imaging optical lens 10 is TTL, and the image height of the imaging optical lens 10 is IH, and satisfies the following relationship: TTL/IH ⁇ 1.45, which specifies the ratio of the total optical length to the image height of the imaging optical lens 10 , Conducive to achieving ultra-thin.
  • Such a design can make the overall optical length TTL of the overall imaging optical lens 10 as short as possible, and maintain the characteristics of miniaturization.
  • the imaging optical lens 10 of the present invention will be described below with examples.
  • the symbols described in each example are as follows, and the units of focal length, on-axis distance, radius of curvature, on-axis thickness, inflection point position, and stagnation point position are 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.
  • FIG. 1 is a schematic diagram of the structure of an imaging optical lens 10 in the first embodiment.
  • the design data of the imaging optical lens 10 in the first embodiment of the present invention is shown below.
  • Table 1 lists the object side and image side curvature radius R of the first lens L1 to the fifth lens L5 constituting the imaging optical lens 10 in the first embodiment of the present invention, the axial thickness of the lens, the distance d between the lenses, and the refraction Rate nd and Abbe number vd.
  • Table 2 shows the conic coefficient k and the aspheric coefficient of the imaging optical lens 10. It should be noted that in this embodiment, the units of distance, radius, and thickness are all millimeters (mm).
  • R the radius of curvature of the optical surface
  • R1 the object side of the first lens L1;
  • R2 the image side of the first lens L1;
  • R3 the object side of the second lens L2;
  • R4 the image side of the second lens L2
  • R5 the object side of the third lens L3;
  • R6 the image side of the third lens L3;
  • R7 the object side of the fourth lens L4;
  • R8 the image side of the fourth lens L4;
  • R9 the object side of the fifth lens L5;
  • R10 the image side of the fifth lens L5;
  • R11 the object side of the optical filter GF
  • R12 the image side of the optical filter GF
  • d the on-axis thickness of the lens or the on-axis distance between adjacent lenses
  • d0 the on-axis distance from the aperture S1 to the object side of the first lens L1;
  • 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;
  • d10 the on-axis distance from the image side surface of the fifth lens L5 to the image side surface of the optical filter GF;
  • d11 the axial thickness of the optical filter GF
  • nd refractive index of d-line
  • nd1 the refractive index of the first lens L1;
  • nd2 the refractive index of the second lens L2
  • nd3 the refractive index of the third lens L3;
  • nd4 the refractive index of the fourth lens L4
  • nd5 the refractive index of the fifth lens L5;
  • ndg the refractive index of the optical filter GF
  • vg Abbe number of optical filter GF.
  • k is the conic coefficient
  • A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspherical coefficients.
  • conditional expression (21) the aspheric surface of each lens in this embodiment preferably uses the aspheric surface shown in the following conditional expression (21), but the specific form of the following conditional expression (21) is only an example. In fact, It is not limited to the aspheric polynomial form shown in conditional expression (21).
  • 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 embodiment of the present invention.
  • P1R1 and P1R2 represent the object side and image side of the first lens L1 respectively
  • P2R1 and P2R2 represent the object side and image side of the second lens L2 respectively
  • P3R1 and P3R2 represent the object side and image side of the third lens L3 respectively
  • P4R1 and P4R2 represent the object side and image side of the fourth lens L4, respectively
  • P5R1 and P5R2 represent the object side and the image side of the fifth lens L5, 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.
  • P1R2 1 0.725 P2R1 To To P2R2 To To P3R1 To To P3R2 To To P4R1 To To P4R2 To To P5R1 1 1.845 P5R2 1 0.945
  • Table 17 also lists the values corresponding to the various parameters in the first embodiment and the parameters specified in the conditional expressions.
  • FIG. 4 shows a schematic diagram of field curvature and distortion after light with a wavelength of 546 nm passes through the imaging optical lens 10 of the first embodiment.
  • the curvature of field S in FIG. 4 is the curvature of field in the sagittal direction
  • T is the curvature of field in the meridional direction.
  • the entrance pupil diameter of the imaging optical lens is 1.720mm
  • the full-field image height is 2.914mm
  • the diagonal field angle is 78.60°
  • wide-angle ultra-thin
  • its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
  • 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 meaning of the symbols is the same as that of the first 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 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 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 435 nm, 486 nm, 546 nm, 587 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 after light with a wavelength of 546 nm passes through the imaging optical lens 20 of the second embodiment.
  • the curvature of field S in FIG. 8 is the curvature of field in the sagittal direction
  • T is the curvature of field in the meridional direction.
  • the entrance pupil diameter of the imaging optical lens is 1.702mm
  • the full-field image height is 2.946mm
  • the diagonal field angle is 78.80°
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.
  • 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 meaning of the symbols is the same as that of the first embodiment, and 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 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.
  • Table 17 also lists the values corresponding to the various parameters in the third embodiment and the parameters specified in the conditional expressions.
  • FIG. 10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light with wavelengths of 436 nm, 486 nm, 546 nm, 588 nm, and 656 nm passes through the imaging optical lens 30 of the third embodiment.
  • FIG. 12 shows a schematic diagram of field curvature and distortion after light with a wavelength of 546 nm passes through the imaging optical lens 30 of the third embodiment.
  • the curvature of field S in FIG. 12 is the curvature of field in the sagittal direction
  • T is the curvature of field in the meridional direction.
  • the entrance pupil diameter of the imaging optical lens is 1.720mm
  • the full field of view image height is 2.914mm
  • the diagonal field angle is 79.60°
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.
  • 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 meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 13 and Table 14 show design data of the imaging optical lens 40 of 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.
  • Table 17 also lists the values corresponding to the various parameters in the fourth embodiment and the parameters specified in the conditional expressions.
  • FIG. 14 and 15 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 435 nm, 486 nm, 546 nm, 587 nm, and 656 nm pass through the imaging optical lens 40 of the fourth embodiment.
  • FIG. 16 shows a schematic diagram of field curvature and distortion of light with a wavelength of 546 nm after passing through the imaging optical lens 40 of the fourth embodiment.
  • the curvature of field S in FIG. 16 is the curvature of field in the sagittal direction, and T is the curvature of field in the meridional direction.
  • the entrance pupil diameter of the imaging optical lens is 1.685mm
  • the full-field image height is 2.946mm
  • the diagonal field angle is 79.40°, wide-angle, ultra-thin, and its axis and axis
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.

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Abstract

本发明提供了一种摄像光学镜头，摄像光学镜头自物侧至像侧依序包含：第一透镜、第二透镜、第三透镜、第四透镜，以及、第五透镜；所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第五透镜的焦距为f5，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，所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，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，且满足下列关系式：-0.50≤f1/f2≤-0.35；5.00≤f3/f≤14.00；-3.10≤(f2+f5)/f≤-2.40；3.00≤(R3+R4)/(R3-R4)≤4.00；1.20≤(R7+R8)/(R7-R8)≤1.30；0.25≤(R9+R10)/(R9-R10)≤0.65。

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】
随着智能手机的迅速发展普及，摄像头的研发和设计随之飞速发展，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，具备良好成像品质的小型化摄像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微型镜头多采用三片式、四片式甚至是五片式透镜结构。这些镜头虽然已经具有较好的光学性能，但是透镜焦距的设置和透镜形状的设置等方面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。
【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。
本发明的技术方案如下：
一种摄像光学镜头，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，具有正屈折力的第三透镜，具有正屈折力的第四透镜，以及具有负屈折力的第五透镜；
所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第五透镜的焦距为f5，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，所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，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，且满足下列关系式：
-0.50≤f1/f2≤-0.35；
5.00≤f3/f≤14.00；
-3.10≤(f2+f5)/f≤-2.40；
3.00≤(R3+R4)/(R3-R4)≤4.00；
1.20≤(R7+R8)/(R7-R8)≤1.30；
0.25≤(R9+R10)/(R9-R10)≤0.65。
进一步的，还满足下列关系式：-2.60≤f2/f≤-1.90。
进一步的，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，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，且满足下列关系式：0.06≤d1/TTL≤0.20；-3.37≤(R1+R2)/(R1-R2)≤-1.01；0.46≤f1/f≤1.40。
进一步的，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，且满足下列关系式：0.03≤d3/TTL≤0.08。
进一步的，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，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，且满足下列关系式：0.04≤d5/TTL≤0.16；0.55≤(R5+R6)/(R5-R6)≤5.17。
进一步的，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，所述第四透镜的焦距为f4，且满足下列关系式：0.06≤d7/TTL≤0.18；0.29≤f4/f≤1.04。
进一步的，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，所述第五透镜的焦距为f5，且满足下列关系式：0.04≤d9/TTL≤0.12；-1.08≤f5/f≤-0.32。
进一步的，所述摄像光学镜头的光圈F数为FNO，且满足下列关系式：FNO≤2.11。
进一步的，所述摄像光学镜头的视场角为FOV，且满足下列关系式：FOV≥78。
进一步的，所述摄像光学镜头的光学总长为TTL，所述摄像光学镜头的像高为IH，且满足下列关系式：TTL/IH≤1.45。
本发明的有益效果在于：通过上述透镜的配置方式，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】
图1是本发明第一实施方式的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。
【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例进行详细的阐述。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实施方式的种种变化和修改，也可以实现本发明所要去保护的技术方案。
第一实施方式：
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包括五个透镜。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以及第五透镜L5。本实施方式中，在第五透镜L5和像面Si之间设置有光学过滤片GF等光学元件，其中光学过滤片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，光学过滤片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，其物侧面为凹面，其像侧面为凸面；第四透镜L4具有正屈折力，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，其物侧面为凹面，像侧面为凹面。
在此，定义所述第一透镜L1的焦距为f1，所述第二透镜L2的焦距为f2，满足下列关系式：-0.50≤f1/f2≤-0.35；规定了第一透镜L1的焦距和第二透镜L2的焦距的比值，在条件式范围内可以有效地平衡系统的的球差以及场曲量。
所述摄像光学镜头10的焦距为f，所述第三透镜L3的焦距为f3，满足下列关系式：5.00≤f3/f≤14.00；规定了第三透镜L3的焦距与整体摄像光学镜头10总焦距之间的比值。如此设置，通过焦距的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
所述第五透镜L5的焦距为f5，满足下列关系式：-3.10≤(f2+f5)/f ≤-2.40；规定了第二透镜L2、第五透镜L5的焦距的和与整体摄像光学镜头10总焦距之间的比值，在条件式范围内有助于提高系统性能。
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：3.00≤(R3+R4)/(R3-R4)≤4.00；规定了第二透镜L2的形状，在此条件范围内时，有利于补正轴上色像差。
所述第四透镜L4物侧面的曲率半径为R7，所述第四透镜L4像侧面的曲率半径为R8，满足下列关系式：1.20≤(R7+R8)/(R7-R8)≤1.30；规定了第四透镜L4的形状，在条件式规定范围内，可以缓和光线经过镜片的偏折程度，有效减小像差。
所述第五透镜L5物侧面的曲率半径为R9，所述第五透镜L5像侧面的曲率半径为R10，满足下列关系式：0.25≤(R9+R10)/(R9-R10)≤0.65；规定了第五透镜L5的形状，在此条件范围内时，有利于补正轴外画角的像差。
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各个透镜(L1、L2、L3、L4、L5)，并设置第一透镜L1和第二透镜L2之间焦距的比值、第三透镜L3的焦距与整体摄像光学镜头10总焦距之间的比值、第二透镜L2、第五透镜L5的焦距的和与整体摄像光学镜头10总焦距之间的比值，同时特别设定了第二透镜L2、第四透镜L4、第五透镜L5的形状，有助于提高光学的系统性能，满足超薄、广角化的设计要求。
摄像光学镜头10还满足下列关系式：-2.60≤f2/f≤-1.90；规定了第二透镜L2的焦距与整体摄像光学镜头10总焦距之间的比值。如此设置，通过焦距的合理分配，使得系统具有较佳的成像品质和较低的敏感性。
定义所述第一透镜L1的轴上厚度为d1，所述摄像光学镜头10的光学总长为TTL，满足下列关系式：0.06≤d1/TTL≤0.20，有利于实现超薄化。
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，且满足下列关系式：-3.37≤(R1+R2)/(R1-R2)≤-1.01；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。
摄像光学镜头10还满足下列关系式：0.46≤f1/f≤1.40；在规定的范围内时，第一透镜L1具有适当的正屈折力，有利于减小系统像差，同时有利 于镜头向超薄化、广角化发展。
定义所述第二透镜L2的轴上厚度为d3，所述摄像光学镜头10的光学总长为TTL，且满足下列关系式：0.03≤d3/TTL≤0.08，有利于实现超薄化。
定义所述第三透镜L3的轴上厚度为d5，满足下列关系式：0.04≤d5/TTL≤0.16，有利于实现超薄化。
所述第三透镜物L3侧面的曲率半径为R5，所述第三透镜L3像侧面的曲率半径为R6，且满足下列关系式：0.55≤(R5+R6)/(R5-R6)≤5.17；规定了第三透镜L3的形状，在条件式规定范围内，可以缓和光线经过镜片的偏折程度，有效减小像差。
定义所述第四透镜L4的轴上厚度为d7，满足下列关系式：0.06≤d7/TTL≤0.18，有利于实现超薄化。
所述第四透镜L4的焦距为f4，且满足下列关系式：0.29≤f4/f≤1.04，规定了第四透镜L4焦距与系统焦距的比值，在条件式范围内有助于提高光学系统性能。
定义所述第五透镜L5的轴上厚度为d9，满足下列关系式：0.04≤d9/TTL≤0.12，有利于实现超薄化。
所述第五透镜L5的焦距为f5，且满足下列关系式：-1.08≤f5/f≤-0.32，对第五透镜L5的限定可有效的使得摄像光学镜头10的光线角度平缓，降低公差敏感度。
在本实施方式中，所述摄像光学镜头10的光圈F数为FNO，且满足下列关系式：FNO≤2.11，大光圈，成像性能好。
所述摄像光学镜头10的视场角为FOV，且满足下列关系式：FOV≥78，规定了摄像光学镜头10的视场角的范围，使得系统具有较大的视场角，成像性能好。
所述摄像光学镜头10的光学总长为TTL，所述摄像光学镜头10的像高为IH，且满足下列关系式：TTL/IH≤1.45，规定了摄像光学镜头10的光学总长与像高的比值，有利于实现超薄化。
如此设计，能够使得整体摄像光学镜头10的光学总长TTL尽量变短，维持小型化的特性。
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。
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～第五镜头L5的物侧以及像侧曲率半径R、透镜的轴上厚度、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、半径和厚度的单位均为毫米(mm)。
【表1】
Figure PCTCN2019103619-appb-000001
上表中各符号的含义如下。
R：光学面的曲率半径；
S1：光圈；
R1：第一透镜L1的物侧面；
R2：第一透镜L1的像侧面；
R3：第二透镜L2的物侧面；
R4：第二透镜L2的像侧面；
R5：第三透镜L3的物侧面；
R6：第三透镜L3的像侧面；
R7：第四透镜L4的物侧面；
R8：第四透镜L4的像侧面；
R9：第五透镜L5的物侧面；
R10：第五透镜L5的像侧面；
R11:光学过滤片GF的物侧面；
R12:光学过滤片GF的像侧面；
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的像侧面到光学过滤片GF的像侧面的轴上距离；
d11：光学过滤片GF的轴上厚度；
d12：光学过滤片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的折射率；
nd2：第二透镜L2的折射率；
nd3：第三透镜L3的折射率；
nd4：第四透镜L4的折射率；
nd5：第五透镜L5的折射率；
ndg：光学过滤片GF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；
vg：光学过滤片GF的阿贝数。
【表2】
Figure PCTCN2019103619-appb-000002
在表2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(21)所示的非球面，但是，下述条件式(21)的具体形式仅为一个示例，实际上，并不限于条件式(21)中表示的非球面多项式形式。
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      (21)
表3、表4示出本发明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、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。“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 PCTCN2019103619-appb-000003
【表4】
  驻点个数 驻点位置1
P1R1    
P1R2 1 0.725
P2R1    
P2R2    
P3R1    
P3R2    
P4R1    
P4R2    
P5R1 1 1.845
P5R2 1 0.945
另外，在后续的表17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。
在本实施方式中，所述摄像光学镜头的入瞳直径为1.720mm，全视场像高为2.914mm，对角线方向的视场角为78.60°，广角、超薄，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：
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光学镜头20的设计数据。
【表5】
Figure PCTCN2019103619-appb-000004
Figure PCTCN2019103619-appb-000005
【表6】
Figure PCTCN2019103619-appb-000006
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】
Figure PCTCN2019103619-appb-000007
Figure PCTCN2019103619-appb-000008
【表8】
  驻点个数 驻点位置1
P1R1    
P1R2 1 0.695
P2R1    
P2R2    
P3R1    
P3R2    
P4R1    
P4R2    
P5R1 1 1.855
P5R2 1 1.035
在后续的表17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435nm、486nm、546nm、587nm、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。图8的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式中，所述摄像光学镜头的入瞳直径为1.702mm，全视场像高为2.946mm，对角线方向的视场角为78.80°，广角、超薄，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：
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 PCTCN2019103619-appb-000009
【表10】
Figure PCTCN2019103619-appb-000010
Figure PCTCN2019103619-appb-000011
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】
Figure PCTCN2019103619-appb-000012
【表12】
  驻点个数 驻点位置1
P1R1    
P1R2 1 0.755
P2R1    
P2R2    
P3R1    
P3R2    
P4R1    
P4R2    
P5R1 1 1.935
P5R2 1 0.985
在后续的表17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。图12的场曲S是弧矢方向的场曲，T是子午方向的场曲。
在本实施方式中，所述摄像光学镜头的入瞳直径为1.720mm，全视场像高为2.914mm，对角线方向的视场角为79.60°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。
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 PCTCN2019103619-appb-000013
Figure PCTCN2019103619-appb-000014
【表14】
Figure PCTCN2019103619-appb-000015
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】
Figure PCTCN2019103619-appb-000016
Figure PCTCN2019103619-appb-000017
【表16】
  驻点个数 驻点位置1 驻点位置2
P1R1      
P1R2 1 0.785  
P2R1      
P2R2      
P3R1      
P3R2      
P4R1      
P4R2 2 1.535 1.735
P5R1 1 1.885  
P5R2 1 1.055  
在后续的表17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435nm、486nm、546nm、587nm、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546nm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。
在本实施方式中，所述摄像光学镜头的入瞳直径为1.685mm，全视场像高为2.946mm，对角线方向的视场角为79.40°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。
以下表17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。
【表17】
Figure PCTCN2019103619-appb-000018
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

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，具有正屈折力的第三透镜，具有正屈折力的第四透镜，以及具有负屈折力的第五透镜；
    所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第五透镜的焦距为f5，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，所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，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，且满足下列关系式：
    -0.50≤f1/f2≤-0.35；
    5.00≤f3/f≤14.00；
    -3.10≤(f2+f5)/f≤-2.40；
    3.00≤(R3+R4)/(R3-R4)≤4.00；
    1.20≤(R7+R8)/(R7-R8)≤1.30；
    0.25≤(R9+R10)/(R9-R10)≤0.65。
  2. 根据权利要求1所述的摄像光学镜头，其特征在于，还满足下列关系式：
    -2.60≤f2/f≤-1.90。
  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，所述摄像光学镜头的光学总长为TTL，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，且满足下列关系式：
    0.06≤d1/TTL≤0.20；
    -3.37≤(R1+R2)/(R1-R2)≤-1.01；
    0.46≤f1/f≤1.40。
  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，且满足下列关系式：
    0.03≤d3/TTL≤0.08。
  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，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，且满足下列关系式：
    0.04≤d5/TTL≤0.16；
    0.55≤(R5+R6)/(R5-R6)≤5.17。
  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，所述第四透镜的焦距为f4，且满足下列关系式：
    0.06≤d7/TTL≤0.18；
    0.29≤f4/f≤1.04。
  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，所述第五透镜的焦距为f5，且满足下列关系式：
    0.04≤d9/TTL≤0.12；
    -1.08≤f5/f≤-0.32。
  8. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光圈F数为FNO，且满足下列关系式：
    FNO≤2.11。
  9. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的视场角为FOV，且满足下列关系式：
    FOV≥78。
  10. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光学总长为TTL，所述摄像光学镜头的像高为IH，且满足下列关 系式：
    TTL/IH≤1.45。
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