WO2020177310A1 - 光学成像镜头 - Google Patents

光学成像镜头 Download PDF

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Publication number
WO2020177310A1
WO2020177310A1 PCT/CN2019/108452 CN2019108452W WO2020177310A1 WO 2020177310 A1 WO2020177310 A1 WO 2020177310A1 CN 2019108452 W CN2019108452 W CN 2019108452W WO 2020177310 A1 WO2020177310 A1 WO 2020177310A1
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Prior art keywords
lens
optical imaging
imaging lens
object side
satisfy
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PCT/CN2019/108452
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English (en)
French (fr)
Inventor
王新权
娄琪琪
戴付建
赵烈烽
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浙江舜宇光学有限公司
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Priority to US17/059,485 priority Critical patent/US20210389570A1/en
Publication of WO2020177310A1 publication Critical patent/WO2020177310A1/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
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
    • 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
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • 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 application relates to an optical imaging lens, and more specifically, to an optical imaging lens including five lenses.
  • the imaging lenses mounted on them need to have smaller and smaller volumes.
  • the currently emerging dual-camera technology can obtain high spatial angular resolution through the telephoto lens, and then achieve high-frequency information enhancement through image fusion technology. Therefore, the design of the telephoto lens in the dual-camera lens is the key, especially the design of the telephoto lens that meets both the telephoto and the ultra-thin telephoto lens is more difficult.
  • the present application provides an optical imaging lens, such as a telephoto lens, which can be applied to portable electronic products and can at least solve or partially solve at least one of the above-mentioned shortcomings in the prior art.
  • an optical imaging lens such as a telephoto lens
  • the present application provides such an optical imaging lens, which may include in order from the object side to the image side along the optical axis: a first lens with positive refractive power, and a convex surface on the object side; and a first lens with negative refractive power.
  • a first lens with positive refractive power and a convex surface on the object side
  • a first lens with negative refractive power Two lenses; a third lens with optical power; a fourth lens with optical power; and a fifth lens with optical power.
  • the distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis and the total effective focal length f of the optical imaging lens may satisfy TTL/f ⁇ 0.9.
  • the Abbe number V1 of the first lens and the Abbe number V2 of the second lens may satisfy 40 ⁇ V1-V2 ⁇ 65.
  • the Abbe number V3 of the third lens and the Abbe number V4 of the fourth lens may satisfy 0 ⁇ V3-V4 ⁇ 10.
  • the separation distance T12 between the first lens and the second lens on the optical axis and the separation distance T23 between the second lens and the third lens on the optical axis may satisfy 0 ⁇ T23/T12 ⁇ 1.5.
  • the central thickness CT1 of the first lens, the central thickness CT4 of the fourth lens, and the central thickness CT5 of the fifth lens may satisfy 1.0 ⁇ CT1/(CT4+CT5) ⁇ 2.0.
  • the total effective focal length f of the optical imaging lens and the central thickness CT1 of the first lens may satisfy 4.5 ⁇ f/CT1 ⁇ 6.0.
  • the sagittal height SAG41 of the object side surface of the fourth lens and the center thickness CT4 of the fourth lens may satisfy -1.5 ⁇ SAG41/CT4 ⁇ -0.9.
  • the total effective focal length f of the optical imaging lens and the separation distance T34 between the third lens and the fourth lens on the optical axis may satisfy 3.5 ⁇ f/T34 ⁇ 5.5.
  • the radius of curvature R6 of the image side surface of the third lens and the radius of curvature R7 of the object side surface of the fourth lens may satisfy 0 ⁇ (R6+R7)/(R6-R7) ⁇ 0.6.
  • the total effective focal length f of the optical imaging lens, the curvature radius R3 of the object side surface of the second lens, and the curvature radius R4 of the image side surface of the second lens may satisfy 3.0 ⁇ f/R3+f/R4 ⁇ 5.5.
  • the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis is TTL and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, ImgH, may satisfy TTL/ImgH ⁇ 1.9.
  • the total effective focal length f of the optical imaging lens and the effective focal length f4 of the fourth lens may satisfy ⁇ 0.2 ⁇ f/f4 ⁇ 0.6.
  • the total effective focal length f of the optical imaging lens, the radius of curvature R8 of the image side surface of the fourth lens, and the radius of curvature R9 of the object side surface of the fifth lens may satisfy -7.0 ⁇ f/R8+f/R9 ⁇ - 4.0.
  • both the first lens and the second lens can be glass lenses.
  • This application uses five lenses.
  • the above optical imaging lens is made It has at least one beneficial effect such as ultra-thinness, high imaging quality, long focal length, and ease of processing and manufacturing.
  • FIG. 1 shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application
  • 2A to 2D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;
  • FIG. 3 shows a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application
  • 4A to 4D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 2;
  • Fig. 5 shows a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application
  • 6A to 6D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 3;
  • FIG. 7 shows a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application.
  • 8A to 8D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 4;
  • FIG. 9 shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application.
  • 10A to 10D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 5;
  • FIG. 11 shows a schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 6;
  • FIG. 13 shows a schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application.
  • 14A to 14D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;
  • FIG. 15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application.
  • 16A to 16D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 8;
  • FIG. 17 shows a schematic structural diagram of an optical imaging lens according to Embodiment 9 of the present application.
  • 18A to 18D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Example 9.
  • first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any restriction on the feature. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as a second lens or a third lens.
  • the thickness, size, and shape of the lens have been slightly exaggerated for ease of description.
  • the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspheric surface is not limited to the shape of the spherical surface or the aspheric surface shown in the drawings.
  • the drawings are only examples and are not drawn strictly to scale.
  • the paraxial area refers to the area near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is at least in the paraxial region. Concave. The surface of each lens closest to the object is called the object side of the lens, and the surface of each lens closest to the imaging surface is called the image side of the lens.
  • the optical imaging lens according to the exemplary embodiment of the present application may include, for example, five lenses having optical power, that is, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the five lenses are arranged in order from the object side to the image side along the optical axis.
  • any two adjacent lenses may have an air gap.
  • the first lens may have positive refractive power, and its object side may be convex; the second lens may have negative refractive power; the third lens, the fourth lens, and the fifth lens may all have positive refractive power Or negative power.
  • both the first lens and the second lens can be glass lenses.
  • the object side surface of the second lens may be a convex surface
  • the image side surface may be a concave surface.
  • At least one of the object side surface and the image side surface of the third lens may be a concave surface, for example, the image side surface of the third lens may be a concave surface.
  • the object side surface of the fourth lens may be concave, and the image side surface may be convex.
  • the object side surface of the fifth lens can be concave, and the image side surface can be convex.
  • the optical imaging lens of the present application can satisfy the conditional TTL/f ⁇ 0.9, where TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and f is the optical axis.
  • the optical imaging lens of the present application may satisfy the conditional formula 40 ⁇ V1-V2 ⁇ 65, where V1 is the Abbe number of the first lens, and V2 is the Abbe number of the second lens. More specifically, V1 and V2 may further satisfy 40.61 ⁇ V1-V2 ⁇ 62.71.
  • Reasonable control of the Abbe numbers of the third and fourth lenses can well correct vertical chromatic aberration, axial chromatic aberration, and chromatic spherical aberration, so as to obtain better system imaging quality.
  • the optical imaging lens of the present application may satisfy the conditional expression 0 ⁇ T23/T12 ⁇ 1.5, where T12 is the distance between the first lens and the second lens on the optical axis, and T23 is the second lens and The separation distance of the third lens on the optical axis. More specifically, T23 and T12 may further satisfy 0.11 ⁇ T23/T12 ⁇ 1.48.
  • the optical imaging lens of the present application may satisfy the conditional expression 1.0 ⁇ CT1/(CT4+CT5) ⁇ 2.0, where CT1 is the central thickness of the first lens (that is, the thickness of the first lens on the optical axis) Thickness), CT4 is the central thickness of the fourth lens (ie, the thickness of the fourth lens on the optical axis), and CT5 is the central thickness of the fifth lens (ie, the thickness of the fifth lens on the optical axis). More specifically, CT1, CT4, and CT5 may further satisfy 1.14 ⁇ CT1/(CT4+CT5) ⁇ 1.83.
  • the optical imaging lens of the present application may satisfy the conditional expression 4.5 ⁇ f/CT1 ⁇ 6.0, where f is the total effective focal length of the optical imaging lens, and CT1 is the central thickness of the first lens. More specifically, f and CT1 may further satisfy 4.87 ⁇ f/CT1 ⁇ 5.85.
  • the optical imaging lens of the present application may satisfy the conditional formula -1.5 ⁇ SAG41/CT4 ⁇ -0.9, where SAG41 is the vector height of the object side of the fourth lens (ie, SAG41 is the object side of the fourth lens The distance between the intersection with the optical axis and the vertex of the effective semi-aperture of the object side of the fourth lens), CT4 is the center thickness of the fourth lens. More specifically, SAG41 and CT4 may further satisfy -1.42 ⁇ SAG41/CT4 ⁇ -0.96. By controlling the sagittal height of the object side of the fourth lens, off-axis aberrations such as field curvature, astigmatism, and distortion can be better balanced.
  • the optical imaging lens of the present application can satisfy the conditional expression 3.5 ⁇ f/T34 ⁇ 5.5, where f is the total effective focal length of the optical imaging lens, and T34 is the third lens and the fourth lens on the optical axis The separation distance. More specifically, f and T34 may further satisfy 3.71 ⁇ f/T34 ⁇ 5.06.
  • the optical imaging lens of the present application may satisfy the conditional formula 0 ⁇ (R6+R7)/(R6-R7) ⁇ 0.6, where R6 is the radius of curvature of the image side surface of the third lens, and R7 is the first The radius of curvature of the object side of the four-lens. More specifically, R6 and R7 may further satisfy 0.04 ⁇ (R6+R7)/(R6-R7) ⁇ 0.59.
  • the optical imaging lens of the present application may satisfy the conditional expression 3.0 ⁇ f/R3+f/R4 ⁇ 5.5, where f is the total effective focal length of the optical imaging lens, and R3 is the object side of the second lens
  • the radius of curvature, R4 is the radius of curvature of the image side surface of the second lens. More specifically, f, R3, and R4 may further satisfy 3.46 ⁇ f/R3+f/R4 ⁇ 5.23.
  • the optical imaging lens of the present application may satisfy the conditional formula TTL/ImgH ⁇ 1.9, where TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and ImgH is the optical axis. Half of the diagonal length of the effective pixel area on the imaging surface of the imaging lens. More specifically, TTL and ImgH can further satisfy 1.82 ⁇ TTL/ImgH ⁇ 1.90.
  • the optical imaging lens of the present application may satisfy the conditional expression -0.2 ⁇ f/f4 ⁇ 0.6, where f is the total effective focal length of the optical imaging lens, and f4 is the effective focal length of the fourth lens. More specifically, f and f4 may further satisfy -0.18 ⁇ f/f4 ⁇ 0.58.
  • the optical imaging lens of the present application can satisfy the conditional expression -7.0 ⁇ f/R8+f/R9 ⁇ -4.0, where f is the total effective focal length of the optical imaging lens, and R8 is the image of the fourth lens.
  • the radius of curvature of the side surface, R9 is the radius of curvature of the object side surface of the fifth lens. More specifically, f, R8, and R9 may further satisfy -6.66 ⁇ f/R8+f/R9 ⁇ -4.24.
  • the above-mentioned optical imaging lens may further include at least one diaphragm.
  • the diaphragm can be set at an appropriate position as required, for example, between the first lens and the second lens, between the second lens and the third lens, or between the third lens and the fourth lens.
  • the above-mentioned optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting the photosensitive element located on the imaging surface.
  • the optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, for example, the above-mentioned five lenses.
  • the volume of the imaging lens can be effectively reduced, the sensitivity of the imaging lens is reduced, and the performance of the imaging lens is improved.
  • Processability makes the optical imaging lens more conducive to production and processing and can be applied to portable electronic products.
  • This application proposes a solution for a five-piece lens. Through the combination and design of different materials, the lens can simultaneously take into account telephoto, ultra-thin and high resolution, and obtain better imaging quality.
  • At least one of the mirror surfaces of each lens is an aspheric mirror surface, that is, the object side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens
  • At least one of the and image side surfaces is an aspherical mirror surface.
  • the characteristic of an aspheric lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspheric lens has better curvature radius characteristics, and has the advantages of improving distortion and astigmatic aberration.
  • the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are aspheric mirror surfaces.
  • the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification.
  • the optical imaging lens is not limited to including five lenses. If necessary, the optical imaging lens may also include other numbers of lenses.
  • FIG. 1 shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has negative refractive power, the object side surface S7 is concave, and the image side surface S8 is convex.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 1 shows the basic parameter table of the optical imaging lens of Embodiment 1, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • f is the total effective focal length of the optical imaging lens
  • FOV is the maximum field angle of the optical imaging lens
  • TTL is the on-axis distance from the object side of the first lens to the imaging surface.
  • the object side and image side of any one of the first lens E1 to the fifth lens E5 are aspherical, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical formula :
  • x is the distance vector height of the aspheric surface at a height h along the optical axis direction;
  • k is the conic coefficient;
  • Ai is the correction coefficient of the i-th order of the aspheric surface.
  • Table 2 shows the high-order coefficients A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 that can be used for each aspheric mirror surface S1-S10 in Example 1. .
  • FIG. 2A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 2B shows the astigmatism curve of the optical imaging lens of Example 1, which represents meridional field curvature and sagittal field curvature.
  • FIG. 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which represents the distortion magnitude values corresponding to different image heights.
  • 2D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 1, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 2A to 2D, it can be seen that the optical imaging lens provided in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 shows a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is concave.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 3 shows the basic parameter table of the optical imaging lens of Embodiment 2, in which the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 4 shows the coefficients of the higher-order terms that can be used for each aspheric mirror surface in Embodiment 2, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 4A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 4B shows the astigmatism curve of the optical imaging lens of Example 2, which represents meridional field curvature and sagittal field curvature.
  • FIG. 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which represents the distortion magnitude values corresponding to different image heights.
  • FIG. 4D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 2, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 4A to 4D that the optical imaging lens provided in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 shows a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has negative refractive power, the object side surface S7 is concave, and the image side surface S8 is convex.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 5 shows the basic parameter table of the optical imaging lens of Embodiment 3, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 6 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 3, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 6A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 6B shows the astigmatism curve of the optical imaging lens of Example 3, which represents meridional field curvature and sagittal field curvature.
  • FIG. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which represents the distortion magnitude values corresponding to different image heights.
  • 6D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 3, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 6A to 6D, it can be known that the optical imaging lens provided in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 shows a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 7 shows the basic parameter table of the optical imaging lens of Embodiment 4, wherein the units of the radius of curvature, thickness, and focal length are all millimeters (mm).
  • Table 8 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 4, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 8A shows the on-axis chromatic aberration curve of the optical imaging lens of Embodiment 4, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 8B shows the astigmatism curve of the optical imaging lens of Example 4, which represents meridional field curvature and sagittal field curvature.
  • FIG. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which represents the distortion magnitude values corresponding to different image heights.
  • FIG. 8D shows a chromatic aberration curve of magnification of the optical imaging lens of Embodiment 4, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 8A to 8D that the optical imaging lens provided in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is concave.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has negative refractive power, the object side surface S7 is concave, and the image side surface S8 is convex.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 9 shows the basic parameter table of the optical imaging lens of Embodiment 5, wherein the units of the radius of curvature, thickness, and focal length are all millimeters (mm).
  • Table 10 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 5, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 10A shows the on-axis chromatic aberration curve of the optical imaging lens of Embodiment 5, which represents the deviation of the focus point of light of different wavelengths after passing through the lens.
  • 10B shows the astigmatism curve of the optical imaging lens of Example 5, which represents meridional field curvature and sagittal field curvature.
  • FIG. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which represents the distortion magnitude values corresponding to different image heights.
  • FIG. 10D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 5, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 10A to 10D that the optical imaging lens provided in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 shows a schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is concave.
  • the second lens E2 has negative refractive power, the object side surface S3 is convex, and the image side surface S4 is concave.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 11 shows the basic parameter table of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 12 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 6, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 12A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 6, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 12B shows the astigmatism curve of the optical imaging lens of Example 6, which represents meridional field curvature and sagittal field curvature.
  • FIG. 12C shows the distortion curve of the optical imaging lens of Embodiment 6, which represents the distortion magnitude values corresponding to different image heights.
  • FIG. 12D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 6, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 12A to 12D, it can be seen that the optical imaging lens given in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 shows a schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 13 shows the basic parameter table of the optical imaging lens of Example 7, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 14 shows the coefficients of the higher-order terms that can be used for each aspheric mirror surface in Embodiment 7, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Fig. 14A shows the on-axis chromatic aberration curve of the optical imaging lens of Example 7, which indicates the deviation of the focal point of light rays of different wavelengths after passing through the lens.
  • 14B shows the astigmatism curve of the optical imaging lens of Example 7, which represents meridional field curvature and sagittal field curvature.
  • FIG. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which represents the distortion magnitude values corresponding to different image heights.
  • FIG. 14D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 7, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 14A to 14D that the optical imaging lens provided in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 15 shows the basic parameter table of the optical imaging lens of Embodiment 8, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 16 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 8, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 16A shows the axial chromatic aberration curve of the optical imaging lens of Example 8, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 16B shows the astigmatism curve of the optical imaging lens of Example 8, which represents meridional field curvature and sagittal field curvature.
  • FIG. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which represents the distortion magnitude values corresponding to different image heights.
  • 16D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 8, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 16A to 16D, it can be seen that the optical imaging lens provided in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 shows a schematic structural diagram of an optical imaging lens according to Embodiment 9 of the present application.
  • the optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5. , Filter E6 and imaging surface S13.
  • the first lens E1 has a positive refractive power, the object side S1 is convex, and the image side S2 is convex.
  • the second lens E2 has negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has negative refractive power, the object side surface S7 is concave, and the image side surface S8 is convex.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the imaging surface S13.
  • Table 17 shows the basic parameter table of the optical imaging lens of Example 9, wherein the units of the radius of curvature, thickness and focal length are all millimeters (mm).
  • Table 18 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 9, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • FIG. 18A shows the axial chromatic aberration curve of the optical imaging lens of Example 9, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens.
  • 18B shows the astigmatism curve of the optical imaging lens of Example 9, which represents meridional field curvature and sagittal field curvature.
  • FIG. 18C shows a distortion curve of the optical imaging lens of Embodiment 9, which represents the distortion magnitude values corresponding to different image heights.
  • 18D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 9, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 18A to 18D, it can be seen that the optical imaging lens given in Embodiment 9 can achieve good imaging quality.
  • Examples 1 to 9 satisfy the relationships shown in Table 19, respectively.
  • the present application also provides an imaging device, the electronic photosensitive element of which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be an independent imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging lens described above.

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Abstract

一种光学成像镜头，其沿着光轴由物侧至像侧依序包括：具有光焦度的第一透镜（E1）、第二透镜(E2)、第三透镜(E3)、第四透镜(E4)和第五透镜(E5)。第一透镜具有正光焦度，物侧面为凸面；第二透镜具有负光焦度；第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的总有效焦距f满足TTL/f＜0.9；以及第三透镜的阿贝数V3与第四透镜的阿贝数V4满足0＜V3-V4＜10。

Description

光学成像镜头
相关申请的交叉引用
本申请要求于2019年03月05日提交于中国国家知识产权局(CNIPA)的、专利申请号为201910164520.9的中国专利申请的优先权和权益，该中国专利申请通过引用整体并入本文。
技术领域
本申请涉及一种光学成像镜头，更具体地，涉及一种包括五片透镜的光学成像镜头。
背景技术
随着手机、平板电脑等便携式电子产品的超薄化趋势，搭载在其上的成像镜头需要具有越来越小的体积。为了满足小型化，需要尽可能地减少成像镜头的镜片数量，但是由此造成的设计自由度的缺乏，会难以满足市场对高成像性能的需求。
当前兴起的双摄技术，可以通过其中的长焦镜头获得高的空间角分辨率，再通过图像融合技术，实现高频信息增强。因此，双摄镜头中长焦镜头的设计为关键，尤其是同时满足长焦和超薄的长焦镜头的设计更为难点。
发明内容
本申请提供了可适用于便携式电子产品的、可至少解决或部分解决现有技术中的上述至少一个缺点的光学成像镜头，例如，长焦镜头。
本申请提供了这样一种光学成像镜头，其沿着光轴由物侧至像侧可依序包括：具有正光焦度的第一透镜，其物侧面可为凸面；具有负光焦度的第二透镜；具有光焦度的第三透镜；具有光焦度的第四透镜；以及具有光焦度的第五透镜。
在一个实施方式中，第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的总有效焦距f可满足TTL/f＜0.9。
在一个实施方式中，第一透镜的阿贝数V1与第二透镜的阿贝数V2可满足40≤V1-V2＜65。
在一个实施方式中，第三透镜的阿贝数V3与第四透镜的阿贝数V4可满足0＜V3-V4＜10。
在一个实施方式中，第一透镜和第二透镜在光轴上的间隔距离T12与第二透镜和第三透镜在光轴上的间隔距离T23可满足0＜T23/T12＜1.5。
在一个实施方式中，第一透镜的中心厚度CT1、第四透镜的中心厚度CT4与第五透镜的中心厚度CT5可满足1.0＜CT1/(CT4+CT5)＜2.0。
在一个实施方式中，光学成像镜头的总有效焦距f与第一透镜的中心厚度CT1可满足4.5＜f/CT1＜6.0。
在一个实施方式中，第四透镜的物侧面的矢高SAG41与第四透镜的中心厚度CT4可满足-1.5≤SAG41/CT4≤-0.9。
在一个实施方式中，光学成像镜头的总有效焦距f与第三透镜和第四透镜在光轴上的间隔距离T34可满足3.5＜f/T34＜5.5。
在一个实施方式中，第三透镜的像侧面的曲率半径R6与第四透镜的物侧面的曲率半径R7可满足0≤(R6+R7)/(R6-R7)≤0.6。
在一个实施方式中，光学成像镜头的总有效焦距f、第二透镜的物侧面的曲率半径R3与第二透镜的像侧面的曲率半径R4可满足3.0＜f/R3+f/R4＜5.5。
在一个实施方式中，第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的成像面上有效像素区域对角线长的一半ImgH可满足TTL/ImgH≤1.9。
在一个实施方式中，光学成像镜头的总有效焦距f与第四透镜的有效焦距f4可满足-0.2≤f/f4≤0.6。
在一个实施方式中，光学成像镜头的总有效焦距f、第四透镜的像侧面的曲率半径R8与第五透镜的物侧面的曲率半径R9可满足-7.0＜f/R8+f/R9＜-4.0。
在一个实施方式中，第一透镜和第二透镜均可为玻璃材质的透镜。
本申请采用了五片透镜，通过不同材料的透镜的合理搭配以及合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，使得上述光学成像镜头具有超薄化、高成像质量、长焦距、便于加工制造等至少一个有益效果。
附图说明
结合附图，通过以下非限制性实施方式的详细描述，本申请的其他特征、目的和优点将变得更加明显。在附图中：
图1示出了根据本申请实施例1的光学成像镜头的结构示意图；
图2A至图2D分别示出了实施例1的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图3示出了根据本申请实施例2的光学成像镜头的结构示意图；
图4A至图4D分别示出了实施例2的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图5示出了根据本申请实施例3的光学成像镜头的结构示意图；
图6A至图6D分别示出了实施例3的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图7示出了根据本申请实施例4的光学成像镜头的结构示意图；
图8A至图8D分别示出了实施例4的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图9示出了根据本申请实施例5的光学成像镜头的结构示意图；
图10A至图10D分别示出了实施例5的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图11示出了根据本申请实施例6的光学成像镜头的结构示意图；
图12A至图12D分别示出了实施例6的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图13示出了根据本申请实施例7的光学成像镜头的结构示意图；
图14A至图14D分别示出了实施例7的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图15示出了根据本申请实施例8的光学成像镜头的结构示意图；
图16A至图16D分别示出了实施例8的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图17示出了根据本申请实施例9的光学成像镜头的结构示意图；
图18A至图18D分别示出了实施例9的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线。
具体实施方式
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意，在本说明书中，第一、第二、第三等的表述仅用于将一个特征与另一个特征区分开来，而不表示对特征的任何限制。因此，在不背离本申请的教导的情况下，下文中讨论的第一透镜也可被称作第二透镜或第三透镜。
在附图中，为了便于说明，已稍微夸大了透镜的厚度、尺寸和形状。具体来讲，附图中所示的球面或非球面的形状通过示例的方式示出。即，球面或非球面的形状不限于附图中示出的球面或非球面的形状。附图仅为示例而并非严格按比例绘制。
在本文中，近轴区域是指光轴附近的区域。若透镜表面为凸面且未界定该凸面位置时，则表示该透镜表面至少于近轴区域为凸面；若透镜表面为凹面且未界定该凹面位置时，则表示该透镜表面至少于近轴区域为凹面。每个透镜最靠近被摄物体的表面称为该透镜的物侧面，每个透镜最靠近成像面的表面称为该透镜的像侧面。
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、元件和/或部件，但不排除存在或附加有一个或多个其它特征、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
以下对本申请的特征、原理和其他方面进行详细描述。
根据本申请示例性实施方式的光学成像镜头可包括例如五片具有光焦度的透镜，即，第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。这五片透镜沿着光轴由物侧至像侧依序排列。在第一透镜至第五透镜中，任意相邻两透镜之间均可具有空气间隔。
在示例性实施方式中，第一透镜可具有正光焦度，其物侧面可为凸面；第二透镜可具有负光焦度；第三透镜、第四透镜和第五透镜均可具有正光焦度或负光焦度。
可选地，第一透镜和第二透镜均可为玻璃材质的透镜。
在示例性实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。第三透镜的物侧面和像侧面中的至少一个可为凹面，例如，第三透镜的像侧面可为凹面。第四透镜的物侧面可为凹面，像侧面可为凸面。第五透镜的物侧面可为凹面，像侧面可为凸面。
在示例性实施方式中，本申请的光学成像镜头可满足条件式TTL/f＜0.9，其中，TTL为第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离，f为光学成像镜头的总有效焦距。更具体地，TTL和f进一步可满足0.80≤TTL/f≤0.85。通过控制系统总长和焦距的 比值，可以很好的实现长焦特性。
在示例性实施方式中，本申请的光学成像镜头可满足条件式40≤V1-V2＜65，其中，V1为第一透镜的阿贝数，V2为第二透镜的阿贝数。更具体地，V1和V2进一步可满足40.61≤V1-V2≤62.71。通过第一透镜阿贝数和第二透镜阿贝数的合理搭配，可以很好的实现对垂轴色差的矫正，从而提升系统的成像质量。
在示例性实施方式中，本申请的光学成像镜头可满足条件式0＜V3-V4＜10，其中，V3为第三透镜的阿贝数，V4为第四透镜的阿贝数。更具体地，V3和V4进一步可满足4.0≤V3-V4≤4.5，例如，V3-V4＝4.24。合理控制第三、第四透镜的阿贝数，可以很好的矫正垂轴色差、轴向色差及色球差，从而获得较好的系统成像质量。
在示例性实施方式中，本申请的光学成像镜头可满足条件式0＜T23/T12＜1.5，其中，T12为第一透镜和第二透镜在光轴上的间隔距离，T23为第二透镜和第三透镜在光轴上的间隔距离。更具体地，T23和T12进一步可满足0.11≤T23/T12≤1.48。通过控制第一透镜、第二透镜的间距和第二透镜、第三透镜的间距，可以很好的矫正系统的场曲和色球差，并降低系统的敏感性。
在示例性实施方式中，本申请的光学成像镜头可满足条件式1.0＜CT1/(CT4+CT5)＜2.0，其中，CT1为第一透镜的中心厚度(即，第一透镜于光轴上的厚度)，CT4为第四透镜的中心厚度(即，第四透镜于光轴上的厚度)，CT5为第五透镜的中心厚度(即，第五透镜于光轴上的厚度)。更具体地，CT1、CT4和CT5进一步可满足1.14≤CT1/(CT4+CT5)≤1.83。通过合理控制第一透镜、第四透镜和第五透镜的中心厚度，可以很好的平衡中心视场附近的球差和慧差，并减小系统的厚度敏感度。
在示例性实施方式中，本申请的光学成像镜头可满足条件式4.5＜f/CT1＜6.0，其中，f为光学成像镜头的总有效焦距，CT1为第一透镜的中心厚度。更具体地，f和CT1进一步可满足4.87≤f/CT1≤5.85。通过控制系统焦距和第一透镜的中心厚度，可以更好的分担视场角，减小系统的球差和彗差。
在示例性实施方式中，本申请的光学成像镜头可满足条件式-1.5≤SAG41/CT4≤-0.9，其中，SAG41为第四透镜的物侧面的矢高(即，SAG41为第四透镜的物侧面和光轴的交点至第四透镜的物侧面的有效半口径顶点的轴上距离)，CT4为第四透镜的中心厚度。更具体地，SAG41和CT4进一步可满足-1.42≤SAG41/CT4≤-0.96。通过控制第四透镜的物侧面的矢高，更好的平衡轴外像差，如场曲，像散，畸变等。
在示例性实施方式中，本申请的光学成像镜头可满足条件式3.5＜f/T34＜5.5，其中，f为光学成像镜头的总有效焦距，T34为第三透镜和第四透镜在光轴上的间隔距离。更具体地，f和T34进一步可满足3.71≤f/T34≤5.06。通过控制系统焦距和第三、四透镜的空气间隔，既可以很好的平衡前后组的光焦度和像差，还可以使光学镜头具有很好的加工性。
在示例性实施方式中，本申请的光学成像镜头可满足条件式0≤(R6+R7)/(R6-R7)≤0.6，其中，R6为第三透镜的像侧面的曲率半径，R7为第四透镜的物侧面的曲率半径。更具体地，R6和R7进一步可满足0.04≤(R6+R7)/(R6-R7)≤0.59。通过合理分配第三透镜像侧面和第四透镜物侧面的曲率半径，可以很好的平衡系统的光焦度，同时可以降低系统的偏心敏感度。
在示例性实施方式中，本申请的光学成像镜头可满足条件式3.0＜f/R3+f/R4＜5.5，其中，f为光学成像镜头的总有效焦距，R3为第二透镜的物侧面的曲率半径，R4为第二透镜的像侧面的曲率半径。更具体地，f、R3和R4进一步可满足3.46≤f/R3+f/R4≤5.23。通过合理分配第二透镜物侧面和像侧面的曲率半径，可以很好的平衡系统的光焦度，降低公差敏感性， 提升成像性能。
在示例性实施方式中，本申请的光学成像镜头可满足条件式TTL/ImgH≤1.9，其中，TTL为第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离，ImgH为光学成像镜头的成像面上有效像素区域对角线长的一半。更具体地，TTL和ImgH进一步可满足1.82≤TTL/ImgH≤1.90。通过控制系统的总长度和像面尺寸，实现对于超薄的需求。
在示例性实施方式中，本申请的光学成像镜头可满足条件式-0.2≤f/f4≤0.6，其中，f为光学成像镜头的总有效焦距，f4为第四透镜的有效焦距。更具体地，f和f4进一步可满足-0.18≤f/f4≤0.58。通过控制第四透镜的焦距，很好的平衡前组系统的光焦度，使得系统满足长焦特性。
在示例性实施方式中，本申请的光学成像镜头可满足条件式-7.0＜f/R8+f/R9＜-4.0，其中，f为光学成像镜头的总有效焦距，R8为第四透镜的像侧面的曲率半径，R9为第五透镜的物侧面的曲率半径。更具体地，f、R8和R9进一步可满足-6.66≤f/R8+f/R9≤-4.24。通过控制第四透镜物侧面和像侧面的曲率半径，可以有效的矫正前组系统的球差、彗差等近轴像差。
在示例性实施方式中，上述光学成像镜头还可包括至少一个光阑。光阑可根据需要设置在适当位置处，例如，设置在第一透镜与第二透镜之间、设置在第二透镜与第三透镜之间、或设置在第三透镜与第四透镜之间。可选地，上述光学成像镜头还可包括用于校正色彩偏差的滤光片和/或用于保护位于成像面上的感光元件的保护玻璃。
根据本申请的上述实施方式的光学成像镜头可采用多片镜片，例如上文所述的五片。通过合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，可有效地缩小成像镜头的体积、降低成像镜头的敏感度并提高成像镜头的可加工性，使得光学成像镜头更有利于生产加工并且可适用于便携式电子产品。本申请提出了一种五片式镜头的解决方案，通过不同材料的搭配和设计，使得该镜头能够同时兼顾长焦、超薄和高分辨率，并获得了较好的成像质量。
在本申请的实施方式中，各透镜的镜面中的至少一个为非球面镜面，即，第一透镜、第二透镜、第三透镜、第四透镜和第五透镜中的每个透镜的物侧面和像侧面中的至少一个为非球面镜面。非球面透镜的特点是：从透镜中心到透镜周边，曲率是连续变化的。与从透镜中心到透镜周边具有恒定曲率的球面透镜不同，非球面透镜具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。采用非球面透镜后，能够尽可能地消除在成像的时候出现的像差，从而改善成像质量。可选地，第一透镜、第二透镜、第三透镜、第四透镜和第五透镜中的每个透镜的物侧面和像侧面均为非球面镜面。
然而，本领域的技术人员应当理解，在未背离本申请要求保护的技术方案的情况下，可改变构成光学成像镜头的透镜数量，来获得本说明书中描述的各个结果和优点。例如，虽然在实施方式中以五个透镜为例进行了描述，但是该光学成像镜头不限于包括五个透镜。如果需要，该光学成像镜头还可包括其它数量的透镜。
下面参照附图进一步描述可适用于上述实施方式的光学成像镜头的具体实施例。
实施例1
以下参照图1至图2D描述根据本申请实施例1的光学成像镜头。图1示出了根据本申请实施例1的光学成像镜头的结构示意图。
如图1所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、第二透镜E2、光阑STO、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表1示出了实施例1的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。
Figure PCTCN2019108452-appb-000001
表1
其中，f为光学成像镜头的总有效焦距，FOV为光学成像镜头的最大视场角，TTL为第一透镜的物侧面至成像面的轴上距离。
在实施例1中，第一透镜E1至第五透镜E5中的任意一个透镜的物侧面和像侧面均为非球面，各非球面透镜的面型x可利用但不限于以下非球面公式进行限定：
Figure PCTCN2019108452-appb-000002
其中，x为非球面沿光轴方向在高度为h的位置时，距非球面顶点的距离矢高；c为非球面的近轴曲率，c＝1/R(即，近轴曲率c为上表1中曲率半径R的倒数)；k为圆锥系数；Ai是非球面第i-th阶的修正系数。下表2给出了可用于实施例1中各非球面镜面S1-S10的高次项系数A 4、A 6、A 8、A 10、A 12、A 14、A 16、A 18和A 20。
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 5.7623E-03 -3.7410E-02 1.1551E-01 -2.0119E-01 2.1094E-01 -1.3529E-01 5.1513E-02 -1.0573E-02 8.7708E-04
S2 6.3269E-02 4.5240E-02 -2.4959E-01 4.2505E-01 -4.0415E-01 2.2877E-01 -7.5309E-02 1.2987E-02 -8.5645E-04
S3 -8.6812E-02 2.6403E-01 -6.8765E-01 1.3313E+00 -1.7387E+00 1.5632E+00 -9.7708E-01 3.9300E-01 -7.5601E-02
S4 -1.1529E-01 7.3657E-01 -3.5139E+00 2.4140E+01 -1.0537E+02 2.7419E+02 -4.1489E+02 3.3717E+02 -1.1317E+02
S5 2.1217E-01 -1.9900E-01 4.1635E+00 -1.8491E+01 3.6030E+01 -1.2733E+01 -6.7633E+01 1.0819E+02 -5.0499E+01
S6 2.6485E-01 -1.1762E-01 1.3006E-01 1.1590E+01 -1.1765E+02 5.0273E+02 -1.1102E+03 1.2476E+03 -5.6481E+02
S7 -2.7139E-02 -1.2639E-01 1.5619E-01 -4.8613E-02 -7.6156E-02 7.7901E-02 -2.5988E-02 2.9874E-03 0.0000E+00
S8 -5.7115E-02 -1.2458E-01 2.0730E-01 -1.2868E-01 2.8400E-02 2.0707E-03 -1.4985E-03 1.2712E-04 0.0000E+00
S9 -1.2081E-01 -8.4896E-02 3.9412E-01 -3.9591E-01 1.9830E-01 -5.6178E-02 9.0594E-03 -7.6189E-04 2.4955E-05
S10 -1.4200E-01 8.2508E-02 3.4044E-02 -6.2791E-02 3.4049E-02 -1.0051E-02 1.7339E-03 -1.6464E-04 6.6670E-06
表2
图2A示出了实施例1的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图2B示出了实施例1的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图2C示出了实施例1的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图2D示出了实施例1的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图2A至图2D可知，实施例1所给出的光学成像镜头能够实现良好的成像品质。
实施例2
以下参照图3至图4D描述根据本申请实施例2的光学成像镜头。在本实施例及以下实施例中，为简洁起见，将省略部分与实施例1相似的描述。图3示出了根据本申请实施例2的光学成像镜头的结构示意图。
如图3所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、光阑STO、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表3示出了实施例2的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表4示出了可用于实施例2中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000003
表3
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.1256E-02 -6.7438E-02 1.7666E-01 -2.8470E-01 2.9178E-01 -1.9204E-01 7.8749E-02 -1.8349E-02 1.8602E-03
S2 1.9535E-02 1.2057E-01 -5.6653E-01 1.4223E+00 -2.1762E+00 2.0691E+00 -1.1896E+00 3.7802E-01 -5.0894E-02
S3 -1.9677E-02 -1.6325E-01 6.6938E-01 -1.7056E+00 3.0687E+00 -3.7646E+00 2.8872E+00 -1.2071E+00 2.0109E-01
S4 -8.9502E-02 1.2981E+00 -1.2050E+01 7.5284E+01 -2.7030E+02 5.8965E+02 -7.8553E+02 5.9111E+02 -1.9247E+02
S5 1.6389E-01 4.1191E-01 -2.1810E+00 1.9105E+01 -7.2533E+01 1.4703E+02 -1.7760E+02 1.2498E+02 -3.9772E+01
S6 1.1257E-01 3.0675E+00 -3.2300E+01 2.1238E+02 -8.7937E+02 2.2973E+03 -3.6654E+03 3.2546E+03 -1.2302E+03
S7 4.6314E-02 -1.8347E-01 1.5104E-01 2.1954E-02 -1.2324E-01 7.0068E-02 -1.1833E-02 -6.9354E-05 0.0000E+00
S8 -3.6601E-02 -1.8044E-01 1.7860E-01 -5.1504E-02 -1.4796E-02 9.8176E-03 -1.0848E-03 -4.1419E-05 0.0000E+00
S9 -3.4230E-01 3.0146E-01 -3.0091E-02 -1.3668E-01 1.1469E-01 -4.3502E-02 8.6469E-03 -8.3228E-04 2.6583E-05
S10 -4.6303E-01 6.2127E-01 -4.7039E-01 2.1877E-01 -6.5215E-02 1.2828E-02 -1.7280E-03 1.5928E-04 -7.8554E-06
表4
图4A示出了实施例2的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图4B示出了实施例2的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图4C示出了实施例2的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图4D示出了实施例2的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图4A至图4D可知，实施例2所给出的光学成像镜头能够实现良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的光学成像镜头。图5示出了根据本申请实施例3的光学成像镜头的结构示意图。
如图5所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、第二透镜E2、第三透镜E3、光阑STO、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表5示出了实施例3的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表6示出了可用于实施例3中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000004
Figure PCTCN2019108452-appb-000005
表5
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.9303E-04 -2.3744E-02 7.2845E-02 -1.3669E-01 1.5326E-01 -1.0506E-01 4.2170E-02 -8.8639E-03 6.8276E-04
S2 3.9909E-02 1.3709E-01 -4.7276E-01 8.7485E-01 -1.0531E+00 8.3217E-01 -4.1503E-01 1.1831E-01 -1.4653E-02
S3 -1.7233E-01 5.7773E-01 -1.3558E+00 2.4850E+00 -3.4963E+00 3.6754E+00 -2.6632E+00 1.1631E+00 -2.2779E-01
S4 -2.8966E-01 1.7077E+00 -5.7288E+00 2.7190E+01 -1.1128E+02 2.8419E+02 -4.2314E+02 3.4103E+02 -1.1461E+02
S5 1.6740E-01 1.0444E+00 -2.1966E+00 1.0091E+01 -5.9108E+01 1.8204E+02 -2.9959E+02 2.5781E+02 -9.0936E+01
S6 2.8311E-01 1.3956E+00 -1.6805E+01 1.2338E+02 -5.6909E+02 1.6546E+03 -2.9375E+03 2.9016E+03 -1.2159E+03
S7 -4.4621E-02 1.2012E-01 -3.4243E-01 4.5395E-01 -3.4728E-01 1.5230E-01 -3.4413E-02 3.0797E-03 0.0000E+00
S8 -9.0743E-02 -1.6577E-02 7.0078E-02 -3.5618E-02 -5.3765E-03 7.2714E-03 -1.5004E-03 8.5039E-05 0.0000E+00
S9 -8.6420E-02 -1.9671E-01 5.4390E-01 -4.9329E-01 2.3232E-01 -6.2808E-02 9.7801E-03 -8.0601E-04 2.6565E-05
S10 -6.9651E-02 -2.1707E-02 1.1949E-01 -1.0618E-01 4.8348E-02 -1.3248E-02 2.2195E-03 -2.1101E-04 8.7838E-06
表6
图6A示出了实施例3的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图6B示出了实施例3的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图6C示出了实施例3的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图6D示出了实施例3的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图6A至图6D可知，实施例3所给出的光学成像镜头能够实现良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的光学成像镜头。图7示出了根据本申请实施例4的光学成像镜头的结构示意图。
如图7所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、光阑STO、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表7示出了实施例4的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表8示出了可用于实施例4中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000006
Figure PCTCN2019108452-appb-000007
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.1518E-02 -6.3008E-02 1.6856E-01 -2.7608E-01 2.8562E-01 -1.8929E-01 7.8126E-02 -1.8349E-02 1.8602E-03
S2 6.7735E-02 2.6137E-02 -4.2378E-01 1.2935E+00 -2.1180E+00 2.0597E+00 -1.1900E+00 3.7802E-01 -5.0894E-02
S3 -3.9743E-02 -1.8848E-01 9.6762E-01 -2.4597E+00 4.0921E+00 -4.4850E+00 3.0946E+00 -1.2071E+00 2.0109E-01
S4 -1.0185E-01 1.2807E+00 -1.1757E+01 7.1732E+01 -2.5824E+02 5.7371E+02 -7.7776E+02 5.9111E+02 -1.9247E+02
S5 3.1177E-01 2.2664E-01 -3.2818E+00 2.1925E+01 -7.4885E+01 1.4807E+02 -1.7817E+02 1.2498E+02 -3.9772E+01
S6 1.8225E-01 3.2564E+00 -3.5528E+01 2.2780E+02 -9.1901E+02 2.3488E+03 -3.6921E+03 3.2546E+03 -1.2302E+03
S7 2.4993E-02 -1.2230E-01 1.0353E-01 -1.7675E-02 -3.0797E-02 1.7908E-02 -2.5422E-03 -6.9354E-05 0.0000E+00
S8 -7.0615E-02 -8.3485E-02 7.7838E-02 -1.4962E-02 -9.8435E-03 4.3653E-03 -2.9624E-04 -4.1419E-05 0.0000E+00
S9 -3.5590E-01 3.3915E-01 -7.7053E-02 -1.0318E-01 1.0144E-01 -4.0863E-02 8.4392E-03 -8.3228E-04 2.6583E-05
S10 -4.0933E-01 5.3779E-01 -3.8172E-01 1.6937E-01 -5.0411E-02 1.0561E-02 -1.5887E-03 1.5928E-04 -7.8554E-06
表8
图8A示出了实施例4的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图8B示出了实施例4的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图8C示出了实施例4的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图8D示出了实施例4的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图8A至图8D可知，实施例4所给出的光学成像镜头能够实现良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的光学成像镜头。图9示出了根据本申请实施例5的光学成像镜头的结构示意图。
如图9所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、第二透镜E2、光阑STO、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表9示出了实施例5的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单 位均为毫米(mm)。表10示出了可用于实施例5中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000008
表9
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.8643E-03 -1.8630E-02 2.9644E-02 -9.8131E-03 -2.8979E-02 4.3991E-02 -2.7581E-02 8.4492E-03 -1.0397E-03
S2 -1.6139E-02 1.2930E-01 -3.4080E-01 6.0417E-01 -7.0851E-01 5.3848E-01 -2.5532E-01 6.8560E-02 -7.9483E-03
S3 -1.0088E-01 1.9026E-01 -2.6545E-01 3.0610E-01 -1.3951E-01 -2.1771E-01 3.7918E-01 -2.2247E-01 4.7248E-02
S4 -3.7424E-02 4.2752E-01 6.6553E-02 -5.8995E+00 3.5714E+01 -1.0849E+02 1.8279E+02 -1.6334E+02 6.1121E+01
S5 3.8506E-01 -2.0901E+00 2.0901E+01 -1.1695E+02 4.0415E+02 -8.7758E+02 1.1639E+03 -8.6175E+02 2.7349E+02
S6 5.3131E-02 5.0309E+00 -5.8738E+01 3.9302E+02 -1.6206E+03 4.1690E+03 -6.5097E+03 5.6374E+03 -2.0744E+03
S7 -4.9908E-02 1.4878E-01 -5.4712E-01 7.8423E-01 -5.8336E-01 2.3030E-01 -4.3860E-02 2.9874E-03 0.0000E+00
S8 -6.5732E-02 -7.6824E-03 -8.5777E-02 1.6458E-01 -1.2832E-01 5.2885E-02 -1.2760E-02 1.8390E-03 -1.2248E-04
S9 -1.0461E-01 -1.6041E-01 5.6054E-01 -5.5975E-01 2.8583E-01 -8.3643E-02 1.4165E-02 -1.2888E-03 4.8592E-05
S10 -1.6153E-01 1.1216E-01 9.4160E-02 -1.6283E-01 9.7017E-02 -3.1631E-02 6.0027E-03 -6.2408E-04 2.7541E-05
表10
图10A示出了实施例5的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图10B示出了实施例5的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图10C示出了实施例5的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图10D示出了实施例5的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图10A至图10D可知，实施例5所给出的光学成像镜头能够实现良好的成像品质。
实施例6
以下参照图11至图12D描述了根据本申请实施例6的光学成像镜头。图11示出了根据本申请实施例6的光学成像镜头的结构示意图。
如图11所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、第二透镜E2、第三透镜E3、光阑STO、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面。第二透镜E2具 有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表11示出了实施例6的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表12示出了可用于实施例6中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000009
表11
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.1560E-03 -4.5433E-02 1.2624E-01 -2.1418E-01 2.2551E-01 -1.4870E-01 5.8970E-02 -1.2674E-02 1.0877E-03
S2 -4.1817E-02 2.1617E-01 -4.5913E-01 6.5448E-01 -6.3916E-01 4.2111E-01 -1.7888E-01 4.4224E-02 -4.8130E-03
S3 -1.5332E-01 6.3636E-01 -1.5828E+00 2.6835E+00 -3.0818E+00 2.3769E+00 -1.2013E+00 3.7262E-01 -5.7742E-02
S4 -1.2244E-01 2.0928E+00 -9.9513E+00 4.2885E+01 -1.5088E+02 3.6561E+02 -5.4608E+02 4.5054E+02 -1.5599E+02
S5 2.4745E-01 1.2322E+00 -4.4548E+00 1.1191E+01 -4.1888E+01 1.4250E+02 -2.8336E+02 2.9152E+02 -1.2074E+02
S6 3.0230E-01 8.7922E-01 -1.1146E+01 7.6111E+01 -3.4733E+02 1.0461E+03 -1.9697E+03 2.0838E+03 -9.3929E+02
S7 2.0699E-02 -1.7013E-01 2.6720E-01 -3.4760E-01 3.0442E-01 -1.5980E-01 4.5398E-02 -5.2799E-03 0.0000E+00
S8 5.5070E-02 -3.4438E-01 3.9319E-01 -2.4010E-01 9.1388E-02 -2.5255E-02 5.0370E-03 -4.8302E-04 0.0000E+00
S9 -1.2595E-01 -1.6749E-02 2.0337E-01 -1.6847E-01 5.7137E-02 -6.4845E-03 -9.6558E-04 3.1947E-04 -2.3385E-05
S10 -2.9110E-01 4.5188E-01 -3.7037E-01 1.9460E-01 -6.9960E-02 1.7079E-02 -2.7068E-03 2.5113E-04 -1.0337E-05
表12
图12A示出了实施例6的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图12B示出了实施例6的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图12C示出了实施例6的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图12D示出了实施例6的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图12A至图12D可知，实施例6所给出的光学成像镜头能够实现良好的成像品质。
实施例7
以下参照图13至图14D描述了根据本申请实施例7的光学成像镜头。图13示出了根据本申请实施例7的光学成像镜头的结构示意图。
如图13所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、光阑STO、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面。第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表13示出了实施例7的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表14示出了可用于实施例7中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000010
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.5045E-02 -9.6935E-02 2.9916E-01 -5.5987E-01 6.5945E-01 -4.9127E-01 2.2442E-01 -5.7341E-02 6.2836E-03
S2 9.5942E-02 7.2559E-02 -7.5683E-01 2.1195E+00 -3.2923E+00 3.0979E+00 -1.7515E+00 5.4777E-01 -7.2826E-02
S3 1.5211E-01 -8.5734E-01 3.1453E+00 -8.7924E+00 1.7138E+01 -2.2139E+01 1.7946E+01 -8.2469E+00 1.6306E+00
S4 1.1898E-01 6.8398E-01 -1.5305E+01 1.1245E+02 -4.3056E+02 9.7319E+02 -1.3175E+03 9.9200E+02 -3.1976E+02
S5 2.8649E-01 -2.6855E-01 -1.5634E+00 2.7027E+01 -1.0874E+02 2.1283E+02 -2.2745E+02 1.2786E+02 -2.9357E+01
S6 2.8397E-02 4.1536E+00 -4.7273E+01 3.2670E+02 -1.3904E+03 3.6853E+03 -5.9327E+03 5.3092E+03 -2.0271E+03
S7 8.1579E-02 -4.2829E-01 9.4226E-01 -1.3067E+00 1.1164E+00 -5.6422E-01 1.5391E-01 -1.7329E-02 0.0000E+00
S8 -1.3646E-01 -1.1875E-03 3.0669E-01 -5.8086E-01 4.7158E-01 -1.9187E-01 3.8103E-02 -2.8640E-03 0.0000E+00
S9 -3.4849E-01 5.1942E-01 -2.4723E-01 -3.2489E-01 4.9926E-01 -2.8231E-01 8.2021E-02 -1.2240E-02 7.4760E-04
S10 -3.1446E-01 4.4615E-01 -4.4867E-01 2.9783E-01 -1.3303E-01 3.9751E-02 -7.6394E-03 8.5234E-04 -4.1702E-05
表14
图14A示出了实施例7的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由 镜头后的会聚焦点偏离。图14B示出了实施例7的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图14C示出了实施例7的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图14D示出了实施例7的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图14A至图14D可知，实施例7所给出的光学成像镜头能够实现良好的成像品质。
实施例8
以下参照图15至图16D描述了根据本申请实施例8的光学成像镜头。图15示出了根据本申请实施例8的光学成像镜头的结构示意图。
如图15所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、光阑STO、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凹面，像侧面S6为凹面。第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表15示出了实施例8的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表16示出了可用于实施例8中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000011
表15
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 8.4362E-03 -5.2098E-02 1.4483E-01 -2.4668E-01 2.6456E-01 -1.8119E-01 7.6796E-02 -1.8349E-02 1.8602E-03
S2 6.9490E-02 1.6622E-03 -3.6965E-01 1.2280E+00 -2.0716E+00 2.0418E+00 -1.1871E+00 3.7802E-01 -5.0894E-02
S3 -1.9849E-02 -2.5155E-01 1.0868E+00 -2.6004E+00 4.1978E+00 -4.5271E+00 3.1008E+00 -1.2071E+00 2.0109E-01
S4 -6.9126E-02 1.1157E+00 -1.1032E+01 6.8412E+01 -2.5008E+02 5.6450E+02 -7.7385E+02 5.9111E+02 -1.9247E+02
S5 2.9167E-01 1.9840E-01 -3.1936E+00 2.0192E+01 -6.9214E+01 1.4135E+02 -1.7547E+02 1.2498E+02 -3.9772E+01
S6 1.8773E-01 2.9735E+00 -3.3285E+01 2.1818E+02 -8.9648E+02 2.3217E+03 -3.6790E+03 3.2546E+03 -1.2302E+03
S7 4.5706E-02 -1.7209E-01 1.7596E-01 -8.0462E-02 4.5866E-03 6.5481E-03 -1.0655E-03 -6.9354E-05 0.0000E+00
S8 -4.7740E-02 -1.3657E-01 1.5247E-01 -6.4664E-02 7.2132E-03 1.5567E-03 -1.3988E-04 -4.1419E-05 0.0000E+00
S9 -3.3621E-01 3.1733E-01 -4.5282E-02 -1.3238E-01 1.1447E-01 -4.3635E-02 8.6679E-03 -8.3228E-04 2.6583E-05
S10 -4.1441E-01 5.6840E-01 -4.1657E-01 1.8758E-01 -5.5452E-02 1.1283E-02 -1.6308E-03 1.5928E-04 -7.8554E-06
表16
图16A示出了实施例8的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图16B示出了实施例8的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图16C示出了实施例8的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图16D示出了实施例8的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图16A至图16D可知，实施例8所给出的光学成像镜头能够实现良好的成像品质。
实施例9
以下参照图17至图18D描述了根据本申请实施例9的光学成像镜头。图17示出了根据本申请实施例9的光学成像镜头的结构示意图。
如图17所示，光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜E1、光阑STO、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、滤光片E6和成像面S13。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面。第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面。第三透镜E3具有负光焦度，其物侧面S5为凹面，像侧面S6为凹面。第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凸面。第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面。滤光片E6具有物侧面S11和像侧面S12。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
表17示出了实施例9的光学成像镜头的基本参数表，其中，曲率半径、厚度和焦距的单位均为毫米(mm)。表18示出了可用于实施例9中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
Figure PCTCN2019108452-appb-000012
表17
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 8.4668E-03 -4.9883E-02 1.4291E-01 -2.4735E-01 2.6779E-01 -1.8356E-01 7.7401E-02 -1.8349E-02 1.8602E-03
S2 6.8975E-02 3.3793E-02 -4.4664E-01 1.3177E+00 -2.1293E+00 2.0616E+00 -1.1900E+00 3.7802E-01 -5.0894E-02
S3 -4.1830E-02 -1.2865E-01 7.5340E-01 -2.1322E+00 3.8243E+00 -4.3731E+00 3.0763E+00 -1.2071E+00 2.0109E-01
S4 -1.0354E-01 1.2728E+00 -1.1142E+01 6.7700E+01 -2.4740E+02 5.6059E+02 -7.7175E+02 5.9111E+02 -1.9247E+02
S5 2.5740E-01 3.5862E-01 -3.1554E+00 1.9070E+01 -6.5511E+01 1.3586E+02 -1.7242E+02 1.2498E+02 -3.9772E+01
S6 1.7546E-01 2.9501E+00 -3.2676E+01 2.1552E+02 -8.9041E+02 2.3145E+03 -3.6756E+03 3.2546E+03 -1.2302E+03
S7 -8.6656E-02 1.2977E-01 -1.7957E-01 1.4247E-01 -6.8699E-02 1.8225E-02 -1.7308E-03 -6.9354E-05 0.0000E+00
S8 -2.7533E-01 1.9210E-01 -9.9452E-02 3.0275E-02 -5.6971E-03 2.9002E-04 2.3197E-04 -4.1419E-05 0.0000E+00
S9 -5.5393E-01 3.7967E-01 7.5358E-02 -2.5869E-01 1.6615E-01 -5.3627E-02 9.4266E-03 -8.3228E-04 2.6583E-05
S10 -3.8704E-01 4.4001E-01 -2.6461E-01 1.0556E-01 -3.2354E-02 7.9599E-03 -1.4368E-03 1.5928E-04 -7.8554E-06
表18
图18A示出了实施例9的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图18B示出了实施例9的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图18C示出了实施例9的光学成像镜头的畸变曲线，其表示不同像高对应的畸变大小值。图18D示出了实施例9的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图18A至图18D可知，实施例9所给出的光学成像镜头能够实现良好的成像品质。
综上，实施例1至实施例9分别满足表19中所示的关系。
公式\实施例 1 2 3 4 5 6 7 8 9
TTL/f 0.85 0.81 0.81 0.80 0.81 0.81 0.81 0.81 0.81
V1-V2 51.78 62.71 51.78 40.61 51.78 51.78 60.73 44.56 40.61
V3-V4 4.24 4.24 4.24 4.24 4.24 4.24 4.24 4.24 4.24
T23/T12 0.98 0.11 0.40 0.90 0.74 0.40 0.19 1.10 1.48
CT1/(CT4+CT5) 1.14 1.46 1.47 1.80 1.82 1.53 1.22 1.83 1.71
f/CT1 4.87 5.85 5.49 5.43 4.93 5.64 5.85 5.47 5.43
SAG41/CT4 -1.04 -0.96 -1.17 -1.04 -1.36 -1.42 -1.16 -1.07 -1.22
f/T34 4.84 5.06 3.98 4.54 4.12 3.71 4.96 4.45 4.06
(R6+R7)/(R6-R7) 0.21 0.25 0.28 0.38 0.07 0.04 0.35 0.56 0.59
f/R3+f/R4 3.85 4.41 4.45 4.31 3.49 3.46 5.23 3.89 4.83
TTL/ImgH 1.90 1.88 1.82 1.88 1.89 1.86 1.89 1.87 1.87
f/f4 -0.09 0.53 -0.12 0.08 -0.18 0.15 0.58 0.28 -1.09
f/R8+f/R9 -5.30 -6.13 -5.78 -4.24 -5.22 -6.06 -6.66 -4.94 -1.02
表19
本申请还提供一种成像装置，其电子感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。成像装置可以是诸如数码相机的独立成像设备，也可以是集成在诸如手机等移动电子设备上的成像模块。该成像装置装配有以上描述的光学成像镜头。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (26)

  1. 光学成像镜头，沿着光轴由物侧至像侧依序包括：具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度，其物侧面为凸面；
    所述第二透镜具有负光焦度；
    所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离TTL与所述光学成像镜头的总有效焦距f满足TTL/f＜0.9；以及
    所述第三透镜的阿贝数V3与所述第四透镜的阿贝数V4满足0＜V3-V4＜10。
  2. 根据权利要求1所述的光学成像镜头，其特征在于，所述第一透镜的阿贝数V1与所述第二透镜的阿贝数V2满足40≤V1-V2＜65。
  3. 根据权利要求1所述的光学成像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12与所述第二透镜和所述第三透镜在所述光轴上的间隔距离T23满足0＜T23/T12＜1.5。
  4. 根据权利要求1所述的光学成像镜头，其特征在于，所述第一透镜的中心厚度CT1、所述第四透镜的中心厚度CT4与所述第五透镜的中心厚度CT5满足1.0＜CT1/(CT4+CT5)＜2.0。
  5. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第一透镜的中心厚度CT1满足4.5＜f/CT1＜6.0。
  6. 根据权利要求1所述的光学成像镜头，其特征在于，所述第四透镜的物侧面的矢高SAG41与所述第四透镜的中心厚度CT4满足-1.5≤SAG41/CT4≤-0.9。
  7. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第三透镜和所述第四透镜在所述光轴上的间隔距离T34满足3.5＜f/T34＜5.5。
  8. 根据权利要求1所述的光学成像镜头，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第四透镜的物侧面的曲率半径R7满足0≤(R6+R7)/(R6-R7)≤0.6。
  9. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第二透镜的物侧面的曲率半径R3与所述第二透镜的像侧面的曲率半径R4满足3.0＜f/R3+f/R4＜5.5。
  10. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第四透镜的有效焦距f4满足-0.2≤f/f4≤0.6。
  11. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第四透镜的像侧面的曲率半径R8与所述第五透镜的物侧面的曲率半径R9满足-7.0＜f/R8+f/R9＜-4.0。
  12. 根据权利要求1至11中任一项所述的光学成像镜头，其特征在于，所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离TTL与所述光学成像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH≤1.9。
  13. 根据权利要求1至11中任一项所述的光学成像镜头，其特征在于，所述第一透镜和所述第二透镜均为玻璃材质的透镜。
  14. 光学成像镜头，沿着光轴由物侧至像侧依序包括：具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度，其物侧面为凸面；
    所述第二透镜具有负光焦度；
    所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离TTL与所述光学成像镜头的总有效焦距f满足TTL/f＜0.9；以及
    所述第一透镜的中心厚度CT1、所述第四透镜的中心厚度CT4与所述第五透镜的中心厚度CT5满足1.0＜CT1/(CT4+CT5)＜2.0。
  15. 根据权利要求14所述的光学成像镜头，其特征在于，所述第一透镜的阿贝数V1与所述第二透镜的阿贝数V2满足40≤V1-V2＜65。
  16. 根据权利要求15所述的光学成像镜头，其特征在于，所述第一透镜和所述第二透镜均为玻璃材质的透镜。
  17. 根据权利要求15所述的光学成像镜头，其特征在于，所述第三透镜的阿贝数V3与所述第四透镜的阿贝数V4满足0＜V3-V4＜10。
  18. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第二透镜的物侧面的曲率半径R3与所述第二透镜的像侧面的曲率半径R4满足3.0＜f/R3+f/R4＜5.5。
  19. 根据权利要求14所述的光学成像镜头，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第四透镜的物侧面的曲率半径R7满足0≤(R6+R7)/(R6-R7)≤0.6。
  20. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第四透镜的像侧面的曲率半径R8与所述第五透镜的物侧面的曲率半径R9满足-7.0＜f/R8+f/R9＜-4.0。
  21. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第四透镜的有效焦距f4满足-0.2≤f/f4≤0.6。
  22. 根据权利要求21所述的光学成像镜头，其特征在于，所述第四透镜的物侧面的矢高SAG41与所述第四透镜的中心厚度CT4满足-1.5≤SAG41/CT4≤-0.9。
  23. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第一透镜的中心厚度CT1满足4.5＜f/CT1＜6.0。
  24. 根据权利要求14所述的光学成像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12与所述第二透镜和所述第三透镜在所述光轴上的间隔距离T23满足0＜T23/T12＜1.5。
  25. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第三透镜和所述第四透镜在所述光轴上的间隔距离T34满足3.5＜f/T34＜5.5。
  26. 根据权利要求14至25中任一项所述的光学成像镜头，其特征在于，所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离TTL与所述光学成像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH≤1.9。
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