WO2019233149A1 - 摄影镜头 - Google Patents

摄影镜头 Download PDF

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Publication number
WO2019233149A1
WO2019233149A1 PCT/CN2019/077465 CN2019077465W WO2019233149A1 WO 2019233149 A1 WO2019233149 A1 WO 2019233149A1 CN 2019077465 W CN2019077465 W CN 2019077465W WO 2019233149 A1 WO2019233149 A1 WO 2019233149A1
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Prior art keywords
lens
object side
photographing
photographic
focal length
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PCT/CN2019/077465
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English (en)
French (fr)
Inventor
闻人建科
贺凌波
王昱昊
Original Assignee
浙江舜宇光学有限公司
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Application filed by 浙江舜宇光学有限公司 filed Critical 浙江舜宇光学有限公司
Publication of WO2019233149A1 publication Critical patent/WO2019233149A1/zh
Priority to US16/834,072 priority Critical patent/US11650398B2/en

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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
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only

Definitions

  • the present application relates to a photographic lens, and more particularly, the present application relates to a photographic lens including six lenses.
  • the camera lens of smart phones has gradually developed from a single camera to a multi-camera, such as a dual camera formed by a combination of a wide-angle lens and a telephoto lens, to achieve the function of optical zoom.
  • the existing telephoto lenses on the market cannot usually take into account aspects such as large image surface, long focal length, small aberrations, and high imaging quality, so they cannot meet the requirements of the dual-camera technology for telephoto lenses.
  • the present application provides a photographic lens that is applicable to portable electronic products and can at least partially solve or solve at least one of the above-mentioned shortcomings in the prior art, for example, a photographic lens that can be applied as a telephoto lens to a dual camera technology.
  • the present application provides a photographic lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a first lens.
  • Six lenses The first lens may have a positive power; the second lens may have a positive power; the third lens has a positive power or a negative power; the fourth lens has a positive power or a negative power, and the object side may be convex
  • the fifth lens may have a positive power; and the sixth lens may have a negative power.
  • a half of the diagonal length of the effective pixel area ImgH on the imaging surface of the photographing lens and the total effective focal length f of the photographing lens may satisfy 0.4 ⁇ ImgH / f ⁇ 0.6.
  • the effective focal length f1 of the first lens, the curvature radius R1 of the object side of the first lens, and the curvature radius R2 of the image side of the first lens may satisfy 2 ⁇ f1 / (R1 + R2) ⁇ 4.5.
  • the effective focal length f2 of the second lens and the curvature radius R3 of the object side of the second lens may satisfy 1.5 ⁇ f2 /
  • the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens may satisfy -2.5 ⁇ f5 / f6 ⁇ -1.5.
  • the curvature radius R7 of the object side of the fourth lens and the curvature radius R8 of the image side of the fourth lens may satisfy 0.2 ⁇ R8 / R7 ⁇ 1.
  • the effective focal length f5 of the fifth lens and the curvature radius R9 of the object side of the fifth lens may satisfy 1 ⁇
  • the distance TTL on the optical axis from the object side of the first lens to the imaging surface of the photographic lens and the total effective focal length f of the photographic lens may satisfy TTL / f ⁇ 1.1.
  • the separation distance T45 on the optical axis of the fourth lens and the fifth lens, the separation distance T34 on the optical axis of the third lens and the fourth lens, and the center thickness CT4 of the fourth lens on the optical axis may be Satisfy 0.6 ⁇ T45 / (T34 + CT4) ⁇ 1.5.
  • the center thickness CT1 of the first lens on the optical axis and the center thickness CT2 of the second lens on the optical axis may satisfy 2 ⁇ CT2 / CT1 ⁇ 2.5.
  • the combined focal length f56 of the fifth lens and the sixth lens and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy 1.5 ⁇
  • the maximum effective radius DT11 on the object side of the first lens, the maximum effective radius DT21 on the object side of the second lens, and the maximum effective radius DT51 on the object side of the fifth lens may satisfy 1mm ⁇ DT11 ⁇ DT21 / DT51 ⁇ 2mm.
  • the maximum half field angle HFOV of the photographic lens can satisfy 20 ° ⁇ HFOV ⁇ 30 °.
  • the image side of the first lens may be concave; the object side of the second lens may be convex; and the object side of the fifth lens may be concave.
  • the present application provides such a photographing lens, which includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and The sixth lens.
  • the first lens may have positive power and its image side may be concave; the second lens may have positive power and its object side may be convex; the third lens has positive or negative power; the fourth lens has positive light Power or negative power; the fifth lens may have positive power and its object side may be concave; and the sixth lens may have negative power.
  • the maximum half field angle HFOV of the photographic lens can satisfy 20 ° ⁇ HFOV ⁇ 30 °
  • This application uses multiple (for example, six) lenses, and by reasonably distributing the power, surface shape, center thickness of each lens, and the axial distance between each lens, etc., the above-mentioned photographic lens has a long focal length. , Large image area, small aberration, and high imaging quality.
  • FIG. 1 is a schematic structural diagram of a photographing lens according to Embodiment 1 of the present application.
  • 2A to 2D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographic lens of Embodiment 1;
  • FIG. 3 is a schematic structural diagram of a photographing lens according to Embodiment 2 of the present application.
  • 4A to 4D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographic lens of Embodiment 2;
  • FIG. 5 is a schematic structural diagram of a photographing lens according to Embodiment 3 of the present application.
  • 6A to 6D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographing lens of Embodiment 3;
  • FIG. 7 is a schematic structural diagram of a photographing lens according to Embodiment 4 of the present application.
  • 8A to 8D respectively show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the photographic lens of Embodiment 4;
  • FIG. 9 is a schematic structural diagram of a photographing lens according to Embodiment 5 of the present application.
  • FIG. 10A to FIG. 10D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographic lens of Embodiment 5;
  • FIG. 11 is a schematic structural diagram of a photographing lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the photographing lens of Embodiment 6;
  • FIG. 13 is a schematic structural diagram of a photographing lens according to Embodiment 7 of the present application.
  • 14A to 14D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographing lens of Embodiment 7;
  • FIG. 15 is a schematic structural diagram of a photographing lens according to Embodiment 8 of the present application.
  • 16A to 16D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographing lens of Embodiment 8;
  • FIG. 17 is a schematic structural diagram of a photographing lens according to Embodiment 9 of the present application.
  • 18A to 18D respectively show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the photographing lens of Embodiment 9;
  • FIG. 19 is a schematic structural diagram of a photographing lens according to Embodiment 10 of the present application.
  • FIG. 20A to FIG. 20D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographic lens of Example 10;
  • FIG. 21 is a schematic structural diagram of a photographing lens according to Embodiment 11 of the present application.
  • 22A to 22D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the photographic lens of Example 11.
  • first, second, third, etc. are only used to distinguish one feature from another feature, and do not indicate any limitation on the feature. Therefore, without departing from the teachings of this application, a 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.
  • 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 or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings.
  • the drawings are only examples and are not drawn to scale.
  • the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the concave position is not defined, it means that the lens surface is at least in the paraxial area. Concave.
  • the surface of each lens near the object side is called the object side of the lens, and the surface of each lens near the image side is called the image side of the lens.
  • the photographing lens according to the exemplary embodiment of the present application may include, for example, six lenses having power, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. These six lenses are arranged in order from the object side to the image side along the optical axis, and there can be an air gap between each adjacent lens.
  • the first lens may have a positive power; the second lens may have a positive power; the third lens has a positive power or a negative power; the fourth lens has a positive power or a negative power
  • the object side may be convex; the fifth lens may have a positive power; the sixth lens may have a negative power.
  • the object side surface of the first lens may be a convex surface, and the image side surface may be a concave surface.
  • the object side of the second lens may be convex.
  • the image side of the third lens may be concave.
  • the image side of the fourth lens may be concave.
  • the object side of the fifth lens may be concave, and the image side may be convex.
  • the image side of the sixth lens may be concave.
  • each lens in the photographic lens By controlling the surface shape of each lens in the photographic lens, it is beneficial to ensure the assembly stability of the photographic lens, and thus facilitate the mass production of the lens; at the same time, the reasonable surface shape arrangement is conducive to improving the imaging quality of the photographic lens.
  • the photography lens of the present application can satisfy a conditional expression of 20 ° ⁇ HFOV ⁇ 30 °, where HFOV is a maximum half field angle of the photography lens. More specifically, HFOV can further satisfy 25 ° ⁇ HFOV ⁇ 30 °, for example, 24.7 ° ⁇ HFOV ⁇ 28.6 °. Meet the conditional expression of 20 ° ⁇ HFOV ⁇ 30 °, which can ensure that the full field of view angle of the photographic lens is less than 60 degrees, improving the imaging effect.
  • the photography lens of the present application can satisfy the conditional expression 0.4 ⁇ ImgH / f ⁇ 0.6, where ImgH is half the diagonal length of the effective pixel area on the imaging surface of the photography lens, and f is the total of the photography lens. Effective focal length. More specifically, ImgH and f can further satisfy 0.48 ⁇ ImgH / f ⁇ 0.57. By controlling the ratio of ImgH and f, the telephoto ratio of the photographic lens can be effectively improved, the magnification of the shooting can be increased, and the imaging quality can be improved.
  • the photographic lens of the present application can satisfy the conditional expression 2 ⁇ f1 / (R1 + R2) ⁇ 4.5, where f1 is an effective focal length of the first lens and R1 is a radius of curvature of the object side of the first lens R2 is the curvature radius of the image side of the first lens. More specifically, f1, R1, and R2 can further satisfy 2.2 ⁇ f1 / (R1 + R2) ⁇ 3.8, such as 2.45 ⁇ f1 / (R1 + R2) ⁇ 3.55. Satisfying the relationship 2 ⁇ f1 / (R1 + R2) ⁇ 4.5, which can effectively increase the overall focal length of the lens, and can reasonably allocate the power of the first lens, reducing the processing sensitivity of the actual parts.
  • the photographic lens of the present application may satisfy a conditional expression 1.5 ⁇ f2 /
  • the photographic lens of the present application may satisfy a conditional expression -2.5 ⁇ f5 / f6 ⁇ -1.5, where f5 is an effective focal length of the fifth lens and f6 is an effective focal length of the sixth lens. More specifically, f5 and f6 can further satisfy -2.45 ⁇ f5 / f6 ⁇ -1.59.
  • the optical distortion of the photographing lens can be reduced.
  • the photographic lens of the present application can satisfy the conditional TTL / f ⁇ 1.1, where TTL is the distance on the optical axis from the object side of the first lens to the imaging surface of the photographic lens, and f is the Total effective focal length. More specifically, TTL and f can further satisfy 0.9 ⁇ TTL / f ⁇ 1.1, such as 0.96 ⁇ TTL / f ⁇ 1.04.
  • TTL and f can satisfy 0.9 ⁇ TTL / f ⁇ 1.1, such as 0.96 ⁇ TTL / f ⁇ 1.04.
  • the photographic lens of the present application can satisfy the conditional expression 0.2 ⁇ R8 / R7 ⁇ 1, where R7 is the curvature radius of the object side of the fourth lens and R8 is the curvature radius of the image side of the fourth lens. More specifically, R8 and R7 can further satisfy 0.23 ⁇ R8 / R7 ⁇ 1.00.
  • the photographic lens of the present application can satisfy a conditional expression of 0.6 ⁇ T45 / (T34 + CT4) ⁇ 1.5, where T45 is the distance between the fourth lens and the fifth lens on the optical axis, and T34 is the first The distance between the three lenses and the fourth lens on the optical axis.
  • CT4 is the center thickness of the fourth lens on the optical axis. More specifically, T45, T34, and CT4 can further satisfy 0.70 ⁇ T45 / (T34 + CT4) ⁇ 1.40, for example, 0.79 ⁇ T45 / (T34 + CT4) ⁇ 1.31.
  • the photography lens of the present application can satisfy the conditional expression 2 ⁇ CT2 / CT1 ⁇ 2.5, where CT1 is the center thickness of the first lens on the optical axis, and CT2 is the center of the second lens on the optical axis. thickness. More specifically, CT2 and CT1 can further satisfy 2.23 ⁇ CT2 / CT1 ⁇ 2.46. Satisfying the conditional expression 2 ⁇ CT2 / CT1 ⁇ 2.5 can effectively ensure the processability of the first lens and the second lens to more conform to the molding characteristics of the plastic lens.
  • the photographic lens of the present application may satisfy the conditional expression 1 ⁇
  • the photography lens of the present application can satisfy the conditional expression 1.5 ⁇
  • the photography lens of the present application can satisfy the conditional expression 1mm ⁇ DT11 ⁇ DT21 / DT51 ⁇ 2mm, where DT11 is the maximum effective radius of the object side of the first lens and DT21 is the maximum effective side of the object side of the second lens Radius, DT51 is the maximum effective radius of the object side of the fifth lens. More specifically, DT11, DT21, and DT51 can further satisfy 1.1 mm ⁇ DT11 ⁇ DT21 / DT51 ⁇ 1.7 mm, such as 1.22 mm ⁇ DT11 ⁇ DT21 / DT51 ⁇ 1.58 mm. Meet the conditional formula 1mm ⁇ DT11 ⁇ DT21 / DT51 ⁇ 2mm, which can ensure the lens has a larger focal length, and can increase the aperture size, and appropriately control the depth of field range to meet the shooting needs in more scenes.
  • the above-mentioned photographing lens may further include at least one diaphragm to improve the imaging quality of the lens.
  • the diaphragm may be disposed between the object side and the first lens.
  • the above-mentioned photographing lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element on the imaging surface.
  • the photographic lens according to the above embodiment of the present application may employ multiple lenses, such as the six described above.
  • multiple lenses such as the six described above.
  • the size of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved.
  • the photographic lens configured as described above can also have beneficial effects such as long focal length, large image surface, small optical aberration, and excellent imaging quality, and can be better applied to the dual camera technology, as a combination of a telephoto lens and other well-known wide-angle lenses Form a dual camera lens.
  • At least one of the mirror surfaces of each lens is an aspherical mirror surface.
  • Aspheric lenses are characterized by a curvature that varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the lens center 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 use of aspheric lenses can eliminate as much aberrations as possible during imaging, thereby improving imaging quality.
  • the number of lenses constituting the photographing lens may be changed to obtain various results and advantages described in this specification.
  • the photographing lens is not limited to including six lenses. If necessary, the photographic lens may include other numbers of lenses. Specific examples of the photographic lens applicable to the above embodiments will be further described below with reference to the drawings.
  • FIG. 1 is a schematic structural diagram of a photographing lens according to Embodiment 1 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographic lens of this embodiment may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 1 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 1.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • each aspheric lens can be defined using, but not limited to, the following aspheric formula:
  • x is the distance vector from the vertex of the aspheric surface when the aspheric surface is at the height h along the optical axis;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the aspherical i-th order.
  • Table 2 below shows the higher-order coefficients A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A that can be used for each of the aspherical mirrors S1-S6, S8-S13 in Example 1. 18 and A 20 .
  • Table 3 shows the effective focal lengths f1 to f6 of each lens, the total effective focal length f of the photographic lens, and the total optical length TTL (that is, from the center of the object side S1 of the first lens E1 to the imaging surface S16 on the optical axis in Example 1). Distance) and the maximum half field angle HFOV.
  • FIG. 2A shows an on-axis chromatic aberration curve of the photographing lens of Example 1, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 2B shows the astigmatism curve of the photographic lens of Example 1, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 2C shows a distortion curve of the photographing lens of Example 1, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 2D shows the magnification chromatic aberration curve of the photographing lens of Example 1, which represents the deviation of different image heights on the imaging plane after light passes through the lens.
  • the photographing lens provided in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a schematic structural diagram of a photographing lens according to Embodiment 2 of the present application.
  • a photographing 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 fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographic lens of this embodiment may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 2.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 5 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 2, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 6 shows the effective focal lengths f1 to f6 of each lens in Example 2, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 4A shows the on-axis chromatic aberration curve of the photographing lens of Example 2, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 4B shows the astigmatism curve of the photographic lens of Example 2, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 4C illustrates a distortion curve of the photographing lens of Example 2, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 4D shows a magnification chromatic aberration curve of the photographing lens of Example 2, which represents the deviation of different image heights on the imaging plane after the light passes through the lens.
  • the photographing lens provided in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a schematic structural diagram of a photographing lens according to Embodiment 3 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally formed on the imaging surface S16.
  • an aperture STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographic lens of this embodiment may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the photographing lens of Example 3.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 8 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 3, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 9 shows the effective focal lengths f1 to f6 of each lens in Example 3, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 6A shows an on-axis chromatic aberration curve of the photographing lens of Example 3, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 6B shows the astigmatism curve of the photographic lens of Example 3, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 6C shows a distortion curve of the photographic lens of Example 3, which represents the magnitude of distortion corresponding to different image heights.
  • FIG. 6D shows a magnification chromatic aberration curve of the photographing lens of Example 3, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. According to FIG. 6A to FIG. 6D, it can be known that the photographing lens provided in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a schematic structural diagram of a photographing lens according to Embodiment 4 of the present application.
  • the photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographic lens of this embodiment may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 10 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 4.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 11 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 4, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 12 shows the effective focal lengths f1 to f6 of the lenses in Example 4, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 8A shows the on-axis chromatic aberration curve of the photographing lens of Example 4, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 8B shows the astigmatism curve of the photographic lens of Example 4, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 8C shows a distortion curve of the photographic lens of Example 4, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 8D shows the magnification chromatic aberration curve of the photographing lens of Example 4, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. According to FIG. 8A to FIG. 8D, it can be known that the photographic lens provided in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a schematic structural diagram of a photographing lens according to Embodiment 5 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographic lens of this embodiment may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 5.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 14 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 5, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 15 shows the effective focal lengths f1 to f6 of each lens in Example 5, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field angle HFOV.
  • FIG. 10A shows the on-axis chromatic aberration curve of the photographing lens of Example 5, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 10B shows the astigmatism curve of the photographic lens of Example 5, which represents the meridional image plane curvature and the sagittal image plane curvature.
  • FIG. 10C shows a distortion curve of the photographing lens of Example 5, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 10D shows the magnification chromatic aberration curve of the photographing lens of Example 5, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. It can be seen from FIGS. 10A to 10D that the photographing lens provided in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a schematic structural diagram of a photographing lens according to Embodiment 6 of the present application.
  • the photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 16 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 6, where the units of the radius of curvature and thickness are both millimeters (mm).
  • Table 17 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 6, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 18 shows the effective focal lengths f1 to f6 of the lenses in Example 6, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 12A shows an on-axis chromatic aberration curve of the photographing lens of Example 6, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 12B shows the astigmatism curve of the photographic lens of Example 6, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 12C shows a distortion curve of the photographic lens of Example 6, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 12D shows a magnification chromatic aberration curve of the photographing lens of Example 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to FIG. 12A to FIG. 12D, it can be known that the photographing lens provided in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a schematic structural diagram of a photographing lens according to Embodiment 7 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and 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 power, and 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 power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 19 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 7, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 20 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 7, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 21 shows the effective focal lengths f1 to f6 of each lens, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view HFOV in Example 7.
  • FIG. 14A illustrates an on-axis chromatic aberration curve of the photographing lens of Example 7, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 14B shows the astigmatism curve of the photographing lens of Example 7, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 14C shows a distortion curve of the photographic lens of Example 7, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 14D shows a magnification chromatic aberration curve of the photographic lens of Example 7, which represents the deviation of different image heights on the imaging plane after the light passes through the lens.
  • the photographing lens provided in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a schematic structural diagram of a photographing lens according to Embodiment 8 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 22 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 8.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 23 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 8, where each aspheric surface type can be defined by the formula (1) given in the above-mentioned Embodiment 1.
  • Table 24 shows the effective focal lengths f1 to f6 of each lens in Example 8, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field angle HFOV.
  • FIG. 16A shows an on-axis chromatic aberration curve of the photographing lens of Example 8, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 16B shows the astigmatism curve of the photographic lens of Example 8, which shows the meridional image plane curvature and the sagittal image plane curvature.
  • FIG. 16C shows the distortion curve of the photographic lens of Example 8, which represents the magnitude of distortion corresponding to different image heights.
  • FIG. 16D shows a magnification chromatic aberration curve of the photographing lens of Example 8, which represents deviations of different image heights on the imaging plane after light passes through the lens. According to FIG. 16A to FIG. 16D, it can be known that the photographing lens provided in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 is a schematic structural diagram of a photographing lens according to Embodiment 9 of the present application.
  • a photographing lens includes: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a positive power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 25 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 9, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 26 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 9, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 27 shows the effective focal lengths f1 to f6 of each lens in Example 9, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 18A shows an on-axis chromatic aberration curve of the photographing lens of Example 9, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 18B shows the astigmatism curve of the photographic lens of Example 9, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 18C shows a distortion curve of the photographing lens of Example 9, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 18D shows a magnification chromatic aberration curve of the photographing lens of Example 9, which represents the deviation of different image heights on the imaging plane after light passes through the lens. It can be seen from FIGS. 18A to 18D that the photographing lens provided in Embodiment 9 can achieve good imaging quality.
  • FIG. 19 is a schematic structural diagram of a photographing lens according to Embodiment 10 of the present application.
  • a photographing 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 fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a convex surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 28 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 10.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 29 shows the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 10, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 30 shows the effective focal lengths f1 to f6 of each lens in Example 10, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 20A shows an on-axis chromatic aberration curve of the photographing lens of Example 10, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 20B shows the astigmatism curve of the photographic lens of Example 10, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 20C illustrates a distortion curve of the photographic lens of Example 10, which represents the magnitude of distortion corresponding to different image heights.
  • FIG. 20D shows a magnification chromatic aberration curve of the photographing lens of Example 10, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 20A to 20D that the photographing lens provided in Embodiment 10 can achieve good imaging quality.
  • FIG. 21 is a schematic structural diagram of a photographing lens according to Embodiment 11 of the present application.
  • a photographing 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 fourth lens E4, a first lens Five lenses E5, sixth lens E6, filter E7, and imaging surface S16.
  • the first lens E1 has a positive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative power, and 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 negative power, and the object side surface S8 is a convex surface, and the image side surface S9 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S10 is a concave surface
  • the image side surface S11 is a convex surface.
  • the sixth lens E6 has a negative power
  • the object side surface S12 is a concave surface
  • the image side surface S13 is a concave surface.
  • the filter E7 has an object side surface S14 and an image side surface S15. The light from the object sequentially passes through the surfaces S1 to S15 and is finally imaged on the imaging surface S16.
  • an aperture stop STO for restricting a light beam may be provided between the object side and the first lens E1 to improve imaging quality.
  • the photographing lens may further include a vignetting stop ST disposed between the third lens E3 and the fourth lens E4.
  • Table 31 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the photographing lens of Example 11, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 32 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 11, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 33 shows the effective focal lengths f1 to f6 of each lens in Example 11, the total effective focal length f of the photographic lens, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 22A shows the on-axis chromatic aberration curve of the photographing lens of Example 11, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 22B shows the astigmatism curve of the photographic lens of Example 11, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 22C shows a distortion curve of the photographic lens of Example 11, which represents the value of the distortion magnitude corresponding to different image heights.
  • FIG. 22D shows a magnification chromatic aberration curve of the photographing lens of Example 11, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to FIG. 22A to FIG. 22D, it can be known that the photographing lens provided in Embodiment 11 can achieve good imaging quality.
  • Examples 1 to 11 satisfy the relationships shown in Table 34, respectively.
  • the present application also provides an imaging device, whose electronic photosensitive element 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 may be an imaging module integrated on a mobile electronic device such as a mobile phone. This imaging device is equipped with the above-mentioned photographic lens.

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Abstract

一种摄影镜头，该镜头沿着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）、第四透镜（E4）、第五透镜（E5）和第六透镜（E6）。第一透镜（E1）具有正光焦度；第二透镜（E2）具有正光焦度；第三透镜（E3）具有光焦度；第四透镜（E4）具有光焦度，其物侧面为凸面；第五透镜（E5）具有正光焦度；第六透镜（E6）具有负光焦度。摄影镜头的成像面上有效像素区域对角线长的一半ImgH与摄影镜头的总有效焦距f满足0.4＜ImgH/f＜0.6。

Description

摄影镜头
相关申请的交叉引用
本申请要求于2018年06月05日提交于中国国家知识产权局(CNIPA)的、专利申请号为201810570519.1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
本申请涉及一种摄影镜头，更具体地，本申请涉及一种包括六片透镜的摄影镜头。
背景技术
随着科技的进步以及例如智能手机的便携式电子产品的迅速发展，人们对便携式电子产品的拍照要求越来越高。为了满足各种场景的拍摄需要，智能手机的摄像镜头逐渐从单摄像头发展为多摄像头，例如广角镜头和长焦镜头组合形成的双摄像头，以实现光学变焦的功能。
目前市面上现有的长焦镜头，通常无法兼顾大像面、长焦距、小像差以及高成像质量等方面，因而无法满足双摄技术对长焦镜头的要求。
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摄影镜头，例如，可作为长焦镜头应用于双摄技术的摄影镜头。
一方面，本申请提供了这样一种摄影镜头，该镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜。第一透镜可具有正光焦度；第二透镜可具有正光焦度；第三透镜具有正光焦度或负光焦度；第四透镜具有正光焦度或负光焦度，其物侧面可为凸面；第五透镜可具有正光焦度；以及第六透镜可具有负光焦度。
在一个实施方式中，摄影镜头的成像面上有效像素区域对角线长的一半ImgH与摄影镜头的总有效焦距f可满足0.4＜ImgH/f＜0.6。
在一个实施方式中，第一透镜的有效焦距f1、第一透镜的物侧面的曲率半径R1与第一透镜的像侧面的曲率半径R2可满足2＜f1/(R1+R2)＜4.5。
在一个实施方式中，第二透镜的有效焦距f2与第二透镜的物侧面的曲率半径R3可满足1.5＜f2/|R3|＜2.5。
在一个实施方式中，第五透镜的有效焦距f5与第六透镜的有效焦距f6可满足-2.5＜f5/f6＜-1.5。
在一个实施方式中，第四透镜的物侧面的曲率半径R7与第四透镜的像侧面的曲率半径R8可满足0.2＜R8/R7≤1。
在一个实施方式中，第五透镜的有效焦距f5与第五透镜的物侧面的曲率半径R9可满足1＜|f5/R9|＜2。
在一个实施方式中，第一透镜的物侧面至摄影镜头的成像面在光轴上的距离TTL与摄影镜头的 总有效焦距f可满足TTL/f＜1.1。
在一个实施方式中，第四透镜和第五透镜在光轴上的间隔距离T45、第三透镜和第四透镜在光轴上的间隔距离T34与第四透镜于光轴上的中心厚度CT4可满足0.6＜T45/(T34+CT4)＜1.5。
在一个实施方式中，第一透镜于光轴上的中心厚度CT1与第二透镜于光轴上的中心厚度CT2可满足2＜CT2/CT1＜2.5。
在一个实施方式中，第五透镜和第六透镜的组合焦距f56与第一透镜、第二透镜和第三透镜的组合焦距f123可满足1.5＜|f56/f123|＜4。
在一个实施方式中，第一透镜物侧面的最大有效半径DT11、第二透镜物侧面的最大有效半径DT21与第五透镜物侧面的最大有效半径DT51可满足1mm＜DT11×DT21/DT51＜2mm。
在一个实施方式中，摄影镜头的最大半视场角HFOV可满足20°＜HFOV＜30°。
在一个实施方式中，第一透镜的像侧面可为凹面；第二透镜的物侧面可为凸面；以及第五透镜的物侧面可为凹面。
另一方面，本申请提供了这样一种摄影镜头，该镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜。第一透镜可具有正光焦度，其像侧面可为凹面；第二透镜可具有正光焦度，其物侧面可为凸面；第三透镜具有正光焦度或负光焦度；第四透镜具有正光焦度或负光焦度；第五透镜可具有正光焦度，其物侧面可为凹面；以及第六透镜可具有负光焦度。其中，摄影镜头的最大半视场角HFOV可满足20°＜HFOV＜30°
本申请采用了多片(例如，六片)透镜，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，使得上述摄影镜头具有长焦距、大像面、小像差和高成像品质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的摄影镜头的结构示意图；
图2A至图2D分别示出了实施例1的摄影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的摄影镜头的结构示意图；
图4A至图4D分别示出了实施例2的摄影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的摄影镜头的结构示意图；
图6A至图6D分别示出了实施例3的摄影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的摄影镜头的结构示意图；
图8A至图8D分别示出了实施例4的摄影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的摄影镜头的结构示意图；
图10A至图10D分别示出了实施例5的摄影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的摄影镜头的结构示意图；
图12A至图12D分别示出了实施例6的摄影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的摄影镜头的结构示意图；
图14A至图14D分别示出了实施例7的摄影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的摄影镜头的结构示意图；
图16A至图16D分别示出了实施例8的摄影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的摄影镜头的结构示意图；
图18A至图18D分别示出了实施例9的摄影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19示出了根据本申请实施例10的摄影镜头的结构示意图；
图20A至图20D分别示出了实施例10的摄影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21示出了根据本申请实施例11的摄影镜头的结构示意图；
图22A至图22D分别示出了实施例11的摄影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。每个透镜靠近物侧的表面称为该透镜的物侧面，每个透镜靠近像侧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摄影镜头可包括例如六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、第五透镜和第六透镜。这六片透镜沿着光轴由物侧至像侧依序排列，各相邻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；第二透镜可具有正光焦度；第三透镜具有正光焦度或负光焦度；第四透镜具有正光焦度或负光焦度，其物侧面可为凸面；第五透镜可具有正光焦度；第六透镜可具有负光焦度。
在示例性实施方式中，第一透镜的物侧面可为凸面，像侧面可为凹面。第二透镜的物侧面可为凸面。第三透镜的像侧面可为凹面。第四透镜的像侧面可为凹面。第五透镜的物侧面可为凹面，像侧面可为凸面。第六透镜的像侧面可为凹面。
通过控制摄影镜头中各透镜的面型，有利于保证摄影镜头的组装稳定性，进而有利于实现镜头的批量化生产；同时，合理的面型布置，有利于提高摄影镜头的成像质量。
在示例性实施方式中，本申请的摄影镜头可满足条件式20°＜HFOV＜30°，其中，HFOV为摄影镜头的最大半视场角。更具体地，HFOV进一步可满足25°＜HFOV＜30°，例如，24.7°≤HFOV≤28.6°。满足条件式20°＜HFOV＜30°，可保证摄影镜头的全视场角小于60度，提高成像效果。
在示例性实施方式中，本申请的摄影镜头可满足条件式0.4＜ImgH/f＜0.6，其中，ImgH为摄影镜头的成像面上有效像素区域对角线长的一半，f为摄影镜头的总有效焦距。更具体地，ImgH和f进一步可满足0.48≤ImgH/f≤0.57。通过控制ImgH与f的比值，可有效提升摄影镜头的摄远比，增加拍摄的放大倍率，并提高成像品质。
在示例性实施方式中，本申请的摄影镜头可满足条件式2＜f1/(R1+R2)＜4.5，其中，f1为第一透镜的有效焦距，R1为第一透镜的物侧面的曲率半径，R2为第一透镜的像侧面的曲率半径。更具体地，f1、R1和R2进一步可满足2.2≤f1/(R1+R2)≤3.8，例如2.45≤f1/(R1+R2)≤3.55。满足关系式2＜f1/(R1+R2)＜4.5，可有效增加镜头的整体焦距，并可合理分配第一透镜的光焦度，降低实际零件加工敏感度。
在示例性实施方式中，本申请的摄影镜头可满足条件式1.5＜f2/|R3|＜2.5，其中，f2为第二透镜的有效焦距，R3为第二透镜的物侧面的曲率半径。更具体地，f2和R3进一步可满足1.60≤f2/|R3|≤2.30，例如，1.77≤f2/|R3|≤2.16。合理分配第二透镜的光焦度，有利于保证摄影镜头的全视场角小于60度，提高成像效果。
在示例性实施方式中，本申请的摄影镜头可满足条件式-2.5＜f5/f6＜-1.5，其中，f5为第五透镜的有效焦距，f6为第六透镜的有效焦距。更具体地，f5和f6进一步可满足-2.45≤f5/f6≤-1.59。通过控制第五透镜和第六透镜的有效焦距，可以减小摄影镜头的光学畸变。
在示例性实施方式中，本申请的摄影镜头可满足条件式TTL/f＜1.1，其中，TTL为第一透镜的物侧面至摄影镜头的成像面在光轴上的距离，f为摄影镜头的总有效焦距。更具体地，TTL和f进一步可满足0.9＜TTL/f＜1.1，例如0.96≤TTL/f≤1.04。通过控制TTL与f的比值，可提升摄影镜头的摄远能力，确保镜头具有较高的调制传递函数(MTF)设计值；同时，有利于获得更加优秀的摄影效果。
在示例性实施方式中，本申请的摄影镜头可满足条件式0.2＜R8/R7≤1，其中，R7为第四透镜的物侧面的曲率半径，R8为第四透镜的像侧面的曲率半径。更具体地，R8和R7进一步可满足0.23≤R8/R7≤1.00。通过优化第四透镜物侧面和像侧面的曲率半径，可降低摄影镜头的轴上色差，同时提高轴外视场的MTF值，满足更高的成像要求。
在示例性实施方式中，本申请的摄影镜头可满足条件式0.6＜T45/(T34+CT4)＜1.5，其中，T45为第四透镜和第五透镜在光轴上的间隔距离，T34为第三透镜和第四透镜在光轴上的间隔距离，CT4为第四透镜于光轴上的中心厚度。更具体地，T45、T34和CT4进一步可满足0.70≤T45/(T34+CT4)≤1.40，例如，0.79≤T45/(T34+CT4)≤1.31。满足条件式0.6＜T45/(T34+CT4)＜1.5，可有效地确保第三透镜、第四透镜和第五透镜的加工工艺性，以更符合塑料镜片的成型特性，进而使得生产组装更加稳定。
在示例性实施方式中，本申请的摄影镜头可满足条件式2＜CT2/CT1＜2.5，其中，CT1为第一透镜于光轴上的中心厚度，CT2为第二透镜于光轴上的中心厚度。更具体地，CT2和CT1进一步可满足2.23≤CT2/CT1≤2.46。满足条件式2＜CT2/CT1＜2.5，可有效地确保第一透镜和第二透镜的加工工艺性，以更加符合塑料镜片的成型特性。
在示例性实施方式中，本申请的摄影镜头可满足条件式1＜|f5/R9|＜2，其中，f5为第五透镜的有效焦距，R9为第五透镜的物侧面的曲率半径。更具体地，f5和R9进一步可满足1.10≤|f5/R9|≤1.98。通过控制第五透镜的物侧面的曲率半径与第五透镜的有效焦距的比值，有利于减小摄影镜头的轴外色差、降低第五透镜的敏感度，并提高镜头的生产良率。
在示例性实施方式中，本申请的摄影镜头可满足条件式1.5＜|f56/f123|＜4，其中，f56为第五透镜和第六透镜的组合焦距，f123为第一透镜、第二透镜和第三透镜的组合焦距。更具体地，f56和f123进一步可满足1.60≤|f56/f123|≤3.90。满足条件式1.5＜|f56/f123|＜4，可有效地降低摄影镜头边缘视场的畸变，确保边缘视场的相对亮度，进而具有更好的摄影成像效果。
在示例性实施方式中，本申请的摄影镜头可满足条件式1mm＜DT11×DT21/DT51＜2mm，其中，DT11为第一透镜物侧面的最大有效半径，DT21为第二透镜物侧面的最大有效半径，DT51为第五透镜物侧面的最大有效半径。更具体地，DT11、DT21和DT51进一步可满足1.1mm≤DT11×DT21/DT51 ≤1.7mm，例如1.22mm≤DT11×DT21/DT51≤1.58mm。满足条件式1mm＜DT11×DT21/DT51＜2mm，可保证镜头具有更大的焦距，并可提升光圈大小，适当控制景深范围，以满足更多场景下的拍摄需求。
在示例性实施方式中，上述摄影镜头还可包括至少一个光阑，以提升镜头的成像质量。可选地，光阑可设置在物侧与第一透镜之间。可选地，上述摄影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摄影镜头可采用多片镜片，例如上文所述的六片。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，可有效地缩小镜头的体积、降低镜头的敏感度并提高镜头的可加工性，使得摄影镜头更有利于生产加工并且可适用于便携式电子产品。通过上述配置的摄影镜头还可具有长焦距、大像面、小光学像差、优良成像质量等有益效果，并可较佳地应用于双摄技术中，作为长焦镜头与其他公知的广角镜头组合形成双摄镜头。
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。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。
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，可改变构成摄影镜头的透镜数量，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六个透镜为例进行了描述，但是该摄影镜头不限于包括六个透镜。如果需要，该摄影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摄影镜头的具体实施例。
实施例1
以下参照图1至图2D描述根据本申请实施例1的摄影镜头。图1示出了根据本申请实施例1的摄影镜头的结构示意图。
如图1所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提高成像质量。可选地，本实施例的摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表1示出了实施例1的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。
Figure PCTCN2019077465-appb-000001
Figure PCTCN2019077465-appb-000002
表1
由表1可知，第一透镜E1至第六透镜E6中的任意一个透镜的物侧面和像侧面均为非球面。在本实施例中，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 PCTCN2019077465-appb-000003
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(在表1中已给出)；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-S6、S8-S13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 -3.2870E-03 -1.1068E-02 1.2798E-02 -9.1779E-03 6.2666E-03 -4.1029E-03 1.8761E-03 -4.7021E-04 4.7424E-05
S2 6.8057E-03 -5.9096E-02 1.1418E-01 -1.2117E-01 8.2044E-02 -3.6749E-02 1.0825E-02 -1.9415E-03 1.6019E-04
S3 1.3962E-02 -5.6284E-02 1.3401E-01 -1.8690E-01 1.7255E-01 -1.0783E-01 4.2802E-02 -9.4782E-03 8.5365E-04
S4 -3.7133E-02 4.5140E-02 4.7866E-03 -8.9016E-02 1.0702E-01 -5.9021E-02 1.6660E-02 -2.4444E-03 1.7285E-04
S5 -3.3356E-02 5.0681E-02 3.5999E-02 -1.6588E-01 1.9982E-01 -1.1565E-01 3.2620E-02 -3.6421E-03 0.0000E+00
S6 -2.9246E-03 4.0171E-02 -8.2081E-02 3.2249E-01 -8.0143E-01 1.1855E+00 -1.0106E+00 4.6333E-01 -8.9292E-02
S8 -5.8400E-02 -6.3285E-02 2.2537E-01 -4.0420E-01 5.3056E-01 -4.7590E-01 2.8441E-01 -1.0062E-01 1.5549E-02
S9 -5.9930E-02 -8.0331E-02 2.7089E-01 -5.3362E-01 7.3284E-01 -6.5547E-01 3.6617E-01 -1.1481E-01 1.5303E-02
S10 2.1534E-02 -9.8167E-02 1.2375E-01 -1.3956E-01 1.0888E-01 -5.7201E-02 1.8506E-02 -3.2249E-03 2.2914E-04
S11 3.0233E-02 -6.7965E-02 5.3797E-02 -3.3426E-02 1.3625E-02 -3.9180E-03 7.6108E-04 -8.4729E-05 3.9457E-06
S12 -1.5883E-01 2.7824E-02 1.3372E-02 -9.6096E-03 1.9434E-03 -8.0815E-05 -1.9702E-05 2.5132E-06 -8.6477E-08
S13 -1.4524E-01 6.1180E-02 -1.8351E-02 3.6757E-03 -4.9915E-04 4.2908E-05 -2.1361E-06 5.3870E-08 -4.9377E-10
表2
表3给出实施例1中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL(即，从第一透镜E1的物侧面S1的中心至成像面S16在光轴上的距离)以及最大半视场角HFOV。
f1(mm) 22.11 f6(mm) -5.96
f2(mm) 4.48 f(mm) 6.70
f3(mm) -7.24 TTL(mm) 6.60
f4(mm) -153.45 HFOV(°) 27.7
f5(mm) 12.90    
表3
图2A示出了实施例1的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图2D示出了实施例1的摄影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所给出的摄影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的摄影镜头。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的摄影镜头的结构示意图。
如图3所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提高成像质量。可选地，本实施例的摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表4示出了实施例2的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表5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。表6给出实施例2中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000004
Figure PCTCN2019077465-appb-000005
表4
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -9.7973E-03 -6.0176E-03 9.8803E-03 -1.4571E-02 1.8091E-02 -1.4060E-02 6.2932E-03 -1.4873E-03 1.4263E-04
S2 2.4857E-03 -6.7650E-02 1.6175E-01 -2.2626E-01 2.0991E-01 -1.2805E-01 4.9060E-02 -1.0641E-02 9.8863E-04
S3 1.5216E-02 -6.0378E-02 1.5343E-01 -2.3347E-01 2.3319E-01 -1.5356E-01 6.3198E-02 -1.4532E-02 1.3957E-03
S4 -3.6596E-02 4.4789E-02 2.0284E-03 -7.9811E-02 9.2336E-02 -4.4992E-02 8.5683E-03 1.4936E-04 -1.7492E-04
S5 -3.2348E-02 4.4209E-02 4.3794E-02 -1.5582E-01 1.7305E-01 -9.5257E-02 2.5966E-02 -2.8021E-03 0.0000E+00
S6 -5.8647E-03 6.0023E-02 -1.8532E-01 6.0252E-01 -1.2159E+00 1.5091E+00 -1.1174E+00 4.5414E-01 -7.8183E-02
S8 -6.6061E-02 -6.6236E-02 3.6699E-01 -8.7780E-01 1.3597E+00 -1.3249E+00 7.9250E-01 -2.6678E-01 3.8750E-02
S9 -7.5979E-02 -2.7305E-02 1.4744E-01 -2.6442E-01 3.1171E-01 -2.2666E-01 1.0137E-01 -2.6167E-02 3.0495E-03
S10 -2.9400E-03 -5.8343E-02 5.9146E-02 -7.1276E-02 6.1994E-02 -3.6713E-02 1.3052E-02 -2.4216E-03 1.7904E-04
S11 2.1716E-02 -5.1564E-02 3.4639E-02 -2.1115E-02 9.0454E-03 -2.9089E-03 6.3324E-04 -7.6382E-05 3.7418E-06
S12 -1.9053E-01 9.4295E-02 -3.3423E-02 8.8146E-03 -2.1099E-03 3.9886E-04 -4.6499E-05 2.8457E-06 -6.9850E-08
S13 -1.2519E-01 6.0729E-02 -2.0347E-02 4.4705E-03 -6.5031E-04 5.9256E-05 -3.1808E-06 9.1082E-08 -1.0654E-09
表5
f1(mm) 17.55 f6(mm) -5.68
f2(mm) 4.80 f(mm) 6.70
f3(mm) -7.55 TTL(mm) 6.60
f4(mm) -127.24 HFOV(°) 27.9
f5(mm) 12.01    
表6
图4A示出了实施例2的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图4D示出了实施例2的摄影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所给出的摄影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的摄影镜头。图5示出了根据本申请实施例3的摄影镜头的结构示意图。
如图5所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15 并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提高成像质量。可选地，本实施例的摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表7示出了实施例3的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表8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。表9给出实施例3中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000006
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.7821E-03 -7.7176E-02 2.8268E-01 -6.1032E-01 7.8386E-01 -5.9899E-01 2.6640E-01 -6.3400E-02 6.1874E-03
S2 9.2846E-03 -1.2277E-01 5.3429E-01 -1.3799E+00 2.1275E+00 -1.9513E+00 1.0442E+00 -3.0154E-01 3.6323E-02
S3 7.7474E-03 2.3642E-02 -1.8443E-01 6.4502E-01 -1.3649E+00 1.7785E+00 -1.3767E+00 5.7211E-01 -9.7813E-02
S4 -6.1680E-02 -4.6917E-03 8.2662E-01 -3.1287E+00 5.9401E+00 -6.6294E+00 4.3716E+00 -1.5690E+00 2.3486E-01
S5 -4.9856E-02 4.1513E-02 5.8540E-01 -2.1516E+00 3.6856E+00 -3.4958E+00 1.7837E+00 -3.8375E-01 0.0000E+00
S6 5.1814E-03 2.7266E-02 -1.7300E-01 1.9356E+00 -8.0738E+00 1.7781E+01 -2.1898E+01 1.4444E+01 -3.9993E+00
S8 -9.8394E-02 -2.0906E-01 1.3836E+00 -4.8955E+00 1.1248E+01 -1.6308E+01 1.4567E+01 -7.2455E+00 1.5204E+00
S9 -9.8057E-02 -2.1970E-01 1.2809E+00 -4.2287E+00 8.9521E+00 -1.1834E+01 9.4820E+00 -4.1753E+00 7.7041E-01
S10 3.5429E-02 -2.0079E-01 4.1183E-01 -7.8207E-01 9.6056E-01 -7.5671E-01 3.5837E-01 -9.0744E-02 9.3597E-03
S11 5.3318E-02 -1.2563E-01 1.3361E-01 -1.4483E-01 1.0398E-01 -4.9644E-02 1.4785E-02 -2.3988E-03 1.5940E-04
S12 -1.9279E-01 6.7324E-02 -3.2490E-02 2.3506E-02 -1.9166E-02 8.0668E-03 -1.6740E-03 1.6819E-04 -6.5788E-06
S13 -2.1526E-01 1.1898E-01 -5.9071E-02 2.0815E-02 -5.0789E-03 7.9234E-04 -7.3065E-05 3.5877E-06 -7.1888E-08
表8
f1(mm) 14.51 f6(mm) -6.55
f2(mm) 4.05 f(mm) 6.33
f3(mm) -5.99 TTL(mm) 6.10
f4(mm) -36.99 HFOV(°) 24.7
f5(mm) 12.07    
表9
图6A示出了实施例3的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图6D示出了实施例3的摄影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所给出的摄影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的摄影镜头。图7示出了根据本申请实施例4的摄影镜头的结构示意图。
如图7所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，本实施例的摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表10示出了实施例4的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表11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。表12给出实施例4中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000007
Figure PCTCN2019077465-appb-000008
表10
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.1773E-03 -1.3097E-02 3.2686E-02 -5.0417E-02 4.6184E-02 -2.4420E-02 7.2266E-03 -1.0857E-03 6.0962E-05
S2 2.2226E-03 -2.9026E-02 8.0766E-02 -1.4402E-01 1.5891E-01 -1.0424E-01 3.9534E-02 -8.0164E-03 6.7290E-04
S3 6.2359E-03 6.8323E-04 -2.8126E-02 8.4411E-02 -1.3590E-01 1.3068E-01 -7.4047E-02 2.2426E-02 -2.7863E-03
S4 -3.7167E-02 1.5520E-02 1.4978E-01 -4.1233E-01 5.3016E-01 -3.9483E-01 1.7229E-01 -4.0399E-02 3.8496E-03
S5 -2.8430E-02 1.4506E-02 1.7301E-01 -4.3816E-01 5.2238E-01 -3.4615E-01 1.2377E-01 -1.8741E-02 0.0000E+00
S6 2.2266E-03 5.7833E-03 -7.8619E-03 2.4610E-01 -8.4550E-01 1.3781E+00 -1.2145E+00 5.6658E-01 -1.1065E-01
S8 -5.7341E-02 -8.1722E-02 3.7553E-01 -9.2151E-01 1.4707E+00 -1.4837E+00 9.2398E-01 -3.2057E-01 4.6875E-02
S9 -5.3624E-02 -1.0121E-01 3.9998E-01 -9.0021E-01 1.2946E+00 -1.1642E+00 6.3534E-01 -1.9082E-01 2.4053E-02
S10 1.9484E-02 -7.5597E-02 1.0616E-01 -1.4139E-01 1.2177E-01 -6.6834E-02 2.1902E-02 -3.8215E-03 2.7106E-04
S11 2.5460E-02 -4.3646E-02 3.0940E-02 -2.3348E-02 1.1661E-02 -3.9405E-03 8.3793E-04 -9.6819E-05 4.5566E-06
S12 -1.0121E-01 1.9199E-02 -5.3091E-03 3.5827E-03 -2.3580E-03 7.0090E-04 -1.0020E-04 6.8997E-06 -1.8475E-07
S13 -1.0796E-01 3.6110E-02 -1.0622E-02 2.2241E-03 -3.3832E-04 3.3892E-05 -2.0007E-06 6.1455E-08 -7.4012E-10
f1(mm) 18.01 f6(mm) -8.10
f2(mm) 4.82 f(mm) 7.24
f3(mm) -7.22 TTL(mm) 7.20
f4(mm) -44.36 HFOV(°) 25.7
f5(mm) 12.91    
表12
图8A示出了实施例4的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图8D示出了实施例4的摄影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所给出的摄影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的摄影镜头。图9示出了根据本申请实施例5的摄影镜头的结构示意图。
如图9所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面， 像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，本实施例的摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表13示出了实施例5的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表14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。表15给出实施例5中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000009
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -4.2808E-03 -4.3537E-03 8.5235E-03 -1.2219E-02 1.1225E-02 -5.8216E-03 1.5905E-03 -1.9434E-04 5.1391E-06
S2 -6.0718E-04 -1.2776E-02 2.5960E-02 -3.7383E-02 3.9561E-02 -2.6405E-02 1.0237E-02 -2.1038E-03 1.7660E-04
S3 5.9223E-03 1.7295E-04 -2.3466E-02 6.9152E-02 -1.0295E-01 9.0761E-02 -4.8273E-02 1.4121E-02 -1.7351E-03
S4 -3.8389E-02 3.2841E-02 6.8138E-02 -2.2366E-01 2.8443E-01 -2.0856E-01 9.1957E-02 -2.2522E-02 2.3157E-03
S5 -3.1419E-02 3.8835E-02 8.2266E-02 -2.4948E-01 2.9497E-01 -1.8848E-01 6.5416E-02 -9.8511E-03 0.0000E+00
S6 -1.5364E-04 8.4578E-03 1.1793E-02 1.5121E-01 -6.4374E-01 1.1422E+00 -1.0593E+00 5.1285E-01 -1.0310E-01
S8 -5.9056E-02 -6.2910E-02 3.0069E-01 -7.5776E-01 1.2476E+00 -1.2941E+00 8.2659E-01 -2.9279E-01 4.3473E-02
S9 -5.4051E-02 -7.4321E-02 2.9373E-01 -6.6321E-01 9.6102E-01 -8.6757E-01 4.7422E-01 -1.4226E-01 1.7848E-02
S10 1.9342E-02 -6.5206E-02 8.4876E-02 -1.1121E-01 9.4608E-02 -5.2068E-02 1.7218E-02 -3.0264E-03 2.1545E-04
S11 2.1785E-02 -3.7261E-02 2.8105E-02 -2.2380E-02 1.0947E-02 -3.5595E-03 7.3747E-04 -8.4167E-05 3.9414E-06
S12 -1.0071E-01 2.1119E-02 -4.7803E-03 2.5968E-03 -1.8017E-03 5.4528E-04 -7.7692E-05 5.2855E-06 -1.3925E-07
S13 -1.0288E-01 3.4786E-02 -1.0151E-02 2.1048E-03 -3.1191E-04 3.0060E-05 -1.7014E-06 5.0136E-08 -5.7989E-10
表14
f1(mm) 18.89 f6(mm) -7.84
f2(mm) 4.75 f(mm) 7.01
f3(mm) -7.33 TTL(mm) 7.05
f4(mm) -46.63 HFOV(°) 26.6
f5(mm) 12.67    
表15
图10A示出了实施例5的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图10D示出了实施例5的摄影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所给出的摄影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的摄影镜头。图11示出了根据本申请实施例6的摄影镜头的结构示意图。
如图11所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表16示出了实施例6的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表17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。表18给出实施例6中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000010
Figure PCTCN2019077465-appb-000011
表16
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -4.7212E-03 -8.0482E-04 -6.6648E-03 1.2648E-02 -8.4663E-03 1.3901E-03 1.0479E-03 -5.3617E-04 7.2953E-05
S2 2.4737E-03 -2.2273E-02 1.9680E-02 1.2842E-02 -3.5611E-02 2.7870E-02 -1.0690E-02 2.0190E-03 -1.4842E-04
S3 9.9697E-03 -1.9809E-02 1.4793E-02 2.9977E-02 -7.6564E-02 7.6174E-02 -4.1892E-02 1.2593E-02 -1.6239E-03
S4 -3.8795E-02 5.6930E-02 -6.5493E-02 1.2463E-01 -2.3876E-01 2.6107E-01 -1.5559E-01 4.8196E-02 -6.1683E-03
S5 -3.3208E-02 5.1395E-02 3.1094E-02 -1.3336E-01 1.3864E-01 -6.7039E-02 1.5715E-02 -1.6777E-03 0.0000E+00
S6 -5.3102E-03 2.8562E-02 -6.3867E-03 2.9058E-02 -8.1788E-02 5.4409E-02 7.0812E-02 -1.0297E-01 3.4993E-02
S8 -6.2708E-02 -1.7318E-02 1.0102E-01 -2.6409E-01 4.9711E-01 -5.9050E-01 4.3420E-01 -1.7504E-01 2.9100E-02
S9 -5.6125E-02 -3.1456E-02 1.2018E-01 -2.7987E-01 4.3603E-01 -4.2043E-01 2.4564E-01 -7.8471E-02 1.0426E-02
S10 1.6675E-02 -5.8633E-02 7.9544E-02 -1.0752E-01 9.0873E-02 -4.9619E-02 1.6372E-02 -2.8798E-03 2.0532E-04
S11 1.4492E-02 -2.8145E-02 2.5315E-02 -2.3283E-02 1.1665E-02 -3.6495E-03 7.1326E-04 -7.7265E-05 3.4741E-06
S12 -1.0338E-01 2.3818E-02 -3.4504E-03 5.1720E-04 -7.0061E-04 2.6377E-04 -4.0412E-05 2.8143E-06 -7.4276E-08
S13 -9.5773E-02 3.3241E-02 -9.6410E-03 1.9340E-03 -2.6526E-04 2.2899E-05 -1.1390E-06 2.8857E-08 -2.7425E-10
表17
f1(mm) 22.15 f6(mm) -7.33
f2(mm) 4.51 f(mm) 6.45
f3(mm) -7.23 TTL(mm) 6.70
f4(mm) -118.03 HFOV(°) 28.6
f5(mm) 12.83    
表18
图12A示出了实施例6的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图12D示出了实施例6的摄影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所给出的摄影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的摄影镜头。图13示出了根据本申请实施例7的摄影镜头的结构示意图。
如图13所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面， 像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表19示出了实施例7的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表20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。表21给出实施例7中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000012
表19
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -7.7064E-03 -2.0985E-02 4.1162E-02 -5.0015E-02 3.9821E-02 -2.0370E-02 6.5429E-03 -1.2150E-03 9.8471E-05
S2 1.7609E-03 -8.0174E-02 2.1402E-01 -3.1601E-01 2.9518E-01 -1.7604E-01 6.5258E-02 -1.3738E-02 1.2503E-03
S3 1.1884E-02 -6.5454E-02 1.9409E-01 -3.1801E-01 3.2631E-01 -2.1431E-01 8.7128E-02 -1.9839E-02 1.9026E-03
S4 -3.6068E-02 4.5398E-02 -2.6959E-03 -6.7545E-02 7.3381E-02 -2.6988E-02 -1.4338E-03 3.0867E-03 -5.2483E-04
S5 -3.4603E-02 5.0170E-02 8.2024E-02 -2.7003E-01 3.1763E-01 -1.9078E-01 5.7824E-02 -6.9931E-03 0.0000E+00
S6 -1.8533E-02 9.0708E-02 -2.9446E-01 1.0304E+00 -2.2208E+00 2.8664E+00 -2.1651E+00 8.8411E-01 -1.5101E-01
S8 -9.7428E-02 7.9040E-02 -2.1929E-01 7.4537E-01 -1.4733E+00 1.8122E+00 -1.3443E+00 5.4948E-01 -9.5146E-02
S9 -9.8766E-02 4.8952E-02 -5.6607E-02 1.5178E-01 -2.2688E-01 2.1961E-01 -1.2867E-01 4.1252E-02 -5.5901E-03
S10 -1.7164E-02 -6.6507E-02 6.1465E-02 -5.1453E-02 3.1127E-02 -1.4905E-02 4.7543E-03 -7.9624E-04 5.1325E-05
S11 7.7467E-03 -6.4993E-02 5.4764E-02 -3.5824E-02 1.6554E-02 -5.6175E-03 1.2506E-03 -1.5291E-04 7.6159E-06
S12 -2.1390E-01 9.5417E-02 -2.4395E-02 3.3849E-03 -6.7107E-04 2.0778E-04 -3.4559E-05 2.6240E-06 -7.4453E-08
S13 -1.3788E-01 6.6863E-02 -2.0785E-02 4.0377E-03 -5.0761E-04 3.9282E-05 -1.7320E-06 3.7892E-08 -2.8392E-10
表20
f1(mm) 17.06 f6(mm) -5.39
f2(mm) 4.63 f(mm) 6.70
f3(mm) -6.80 TTL(mm) 6.60
f4(mm) 15936.18 HFOV(°) 28.1
f5(mm) 11.79    
表21
图14A示出了实施例7的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图14D示出了实施例7的摄影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所给出的摄影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的摄影镜头。图15示出了根据本申请实施例8的摄影镜头的结构示意图。
如图15所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面。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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表22示出了实施例8的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表23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。表24给出实施例8中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000013
Figure PCTCN2019077465-appb-000014
表22
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -8.7163E-03 -1.7572E-02 2.3512E-02 -1.5363E-02 4.1748E-03 7.6063E-04 -7.3937E-04 1.4342E-04 -7.8342E-06
S2 1.7385E-03 -8.0027E-02 1.9387E-01 -2.5435E-01 2.1644E-01 -1.2224E-01 4.4683E-02 -9.5843E-03 9.0488E-04
S3 1.0951E-02 -6.2759E-02 1.6523E-01 -2.3384E-01 2.1174E-01 -1.2777E-01 4.9622E-02 -1.1065E-02 1.0418E-03
S4 -3.4647E-02 4.4348E-02 -3.0386E-03 -6.4314E-02 6.9944E-02 -2.5875E-02 -1.0254E-03 2.7511E-03 -4.6811E-04
S5 -3.4289E-02 5.0703E-02 8.9246E-02 -2.9702E-01 3.5935E-01 -2.2221E-01 6.9496E-02 -8.7127E-03 0.0000E+00
S6 -2.2395E-02 9.0826E-02 -2.8225E-01 1.0085E+00 -2.2454E+00 2.9891E+00 -2.3147E+00 9.6342E-01 -1.6684E-01
S8 -9.8412E-02 8.7295E-02 -2.4127E-01 8.4262E-01 -1.7408E+00 2.2358E+00 -1.7262E+00 7.3145E-01 -1.3072E-01
S9 -9.8101E-02 6.8601E-02 -1.1026E-01 2.6646E-01 -3.9246E-01 3.7390E-01 -2.1634E-01 6.8065E-02 -8.8982E-03
S10 -1.7158E-02 -6.6558E-02 7.1809E-02 -7.0595E-02 4.9518E-02 -2.5188E-02 7.9543E-03 -1.3041E-03 8.3237E-05
S11 3.5358E-03 -6.7382E-02 6.7102E-02 -4.9816E-02 2.5319E-02 -8.9128E-03 1.9699E-03 -2.3611E-04 1.1545E-05
S12 -2.1765E-01 9.4650E-02 -2.1530E-02 1.4397E-03 -8.6483E-05 1.1804E-04 -2.7413E-05 2.3590E-06 -7.1421E-08
S13 -1.3283E-01 6.4626E-02 -2.0378E-02 4.0344E-03 -5.1070E-04 3.8524E-05 -1.5614E-06 2.7062E-08 -5.5533E-11
表23
f1(mm) 16.86 f6(mm) -5.42
f2(mm) 4.47 f(mm) 6.70
f3(mm) -6.70 TTL(mm) 6.60
f4(mm) -326.10 HFOV(°) 28.0
f5(mm) 12.87    
表24
图16A示出了实施例8的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图16D示出了实施例8的摄影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所给出的摄影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的摄影镜头。图17示出了根据本申请实施例9的摄影镜头的结构示意图。
如图17所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面。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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提 高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表25示出了实施例9的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表26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。表27给出实施例9中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000015
表25
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -9.4030E-03 -1.5071E-02 1.8818E-02 -1.1005E-02 2.3323E-03 7.7412E-04 -4.4140E-04 3.5936E-05 4.6517E-06
S2 1.3573E-03 -7.8119E-02 1.8791E-01 -2.4438E-01 2.0708E-01 -1.1700E-01 4.2931E-02 -9.2598E-03 8.7933E-04
S3 1.0786E-02 -6.2882E-02 1.6317E-01 -2.2551E-01 1.9915E-01 -1.1747E-01 4.4764E-02 -9.8252E-03 9.1017E-04
S4 -3.4332E-02 4.4079E-02 -3.0053E-03 -6.3980E-02 6.9775E-02 -2.6114E-02 -7.1114E-04 2.6219E-03 -4.4993E-04
S5 -3.3976E-02 5.0165E-02 8.9450E-02 -2.9579E-01 3.5696E-01 -2.2025E-01 6.8770E-02 -8.6182E-03 0.0000E+00
S6 -2.3344E-02 9.2273E-02 -2.8524E-01 1.0105E+00 -2.2339E+00 2.9590E+00 -2.2840E+00 9.4906E-01 -1.6437E-01
S8 -9.5738E-02 7.1380E-02 -1.9140E-01 7.5794E-01 -1.6660E+00 2.2219E+00 -1.7596E+00 7.5966E-01 -1.3784E-01
S9 -9.3307E-02 4.7610E-02 -3.4040E-02 9.3504E-02 -1.3162E-01 1.1707E-01 -5.8861E-02 1.3741E-02 -9.0524E-04
S10 -1.8019E-02 -7.2914E-02 8.7173E-02 -9.1996E-02 6.7592E-02 -3.4395E-02 1.0662E-02 -1.7224E-03 1.0929E-04
S11 -1.0473E-03 -6.9157E-02 7.3436E-02 -5.7220E-02 3.0449E-02 -1.1074E-02 2.4941E-03 -3.0258E-04 1.4944E-05
S12 -2.2409E-01 9.5105E-02 -1.7741E-02 -8.7567E-04 5.7216E-04 1.2151E-05 -1.7586E-05 1.8685E-06 -6.1232E-08
S13 -1.3687E-01 6.7035E-02 -2.0620E-02 3.9112E-03 -4.6689E-04 3.2255E-05 -1.0963E-06 9.4727E-09 2.1247E-10
表26
f1(mm) 16.98 f6(mm) -5.50
f2(mm) 4.44 f(mm) 6.70
f3(mm) 3.00 TTL(mm) 6.60
f4(mm) -298.35 HFOV(°) 28.0
f5(mm) 12.94    
表27
图18A示出了实施例9的摄影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的摄影镜头的象散曲线，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的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图18D示出了实施例9的摄影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所给出的摄影镜头能够实现良好的成像品质。
实施例10
以下参照图19至图20D描述了根据本申请实施例10的摄影镜头。图19示出了根据本申请实施例10的摄影镜头的结构示意图。
如图19所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面。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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凸面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表28示出了实施例10的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表29示出了可用于实施例10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。表30给出实施例10中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000016
表28
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -9.1489E-03 -1.1224E-02 8.7309E-03 2.9554E-03 -1.0388E-02 8.1103E-03 -2.9589E-03 5.0434E-04 -3.1842E-05
S2 1.7356E-03 -7.6954E-02 1.8500E-01 -2.4009E-01 2.0075E-01 -1.1154E-01 4.0474E-02 -8.7078E-03 8.2983E-04
S3 9.6720E-03 -6.3209E-02 1.6937E-01 -2.3443E-01 2.0440E-01 -1.1811E-01 4.4064E-02 -9.5065E-03 8.6928E-04
S4 -3.4085E-02 4.3294E-02 -2.3869E-03 -6.3522E-02 6.8530E-02 -2.5048E-02 -1.2016E-03 2.7514E-03 -4.6567E-04
S5 -3.4448E-02 5.8583E-02 7.9869E-02 -3.0092E-01 3.7915E-01 -2.4120E-01 7.7522E-02 -1.0025E-02 0.0000E+00
S6 -2.6596E-02 1.0363E-01 -2.8762E-01 9.7574E-01 -2.1408E+00 2.8231E+00 -2.1610E+00 8.8703E-01 -1.5133E-01
S8 -1.0111E-01 2.0132E-02 7.7558E-02 2.3591E-02 -3.8538E-01 8.0426E-01 -7.9776E-01 3.9482E-01 -7.8592E-02
S9 -9.1072E-02 1.2314E-02 1.2543E-01 -2.7581E-01 4.1850E-01 -4.0853E-01 2.5256E-01 -9.0890E-02 1.4296E-02
S10 -1.3367E-02 -8.2363E-02 1.1356E-01 -1.2891E-01 9.7886E-02 -4.8868E-02 1.4564E-02 -2.2729E-03 1.4103E-04
S11 3.7749E-03 -7.9163E-02 9.0250E-02 -7.2746E-02 3.9043E-02 -1.3903E-02 3.0283E-03 -3.5571E-04 1.7092E-05
S12 -2.3246E-01 9.7646E-02 -1.6782E-02 -2.0873E-03 1.0292E-03 -6.9418E-05 -1.0303E-05 1.5708E-06 -5.7442E-08
S13 -1.4178E-01 6.9777E-02 -2.1652E-02 4.1266E-03 -4.8411E-04 3.1075E-05 -7.9220E-07 -9.5859E-09 6.1369E-10
表29
f1(mm) 16.34 f6(mm) -5.42
f2(mm) 4.43 f(mm) 6.70
f3(mm) -6.71 TTL(mm) 6.60
f4(mm) -231.06 HFOV(°) 28.0
f5(mm) 13.30    
表30
图20A示出了实施例10的摄影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20B示出了实施例10的摄影镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图20C示出了实施例10的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图20D示出了实施例10的摄影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20A至图20D可知，实施例10所给出的摄影镜头能够实现良好的成像品质。
实施例11
以下参照图21至图22D描述了根据本申请实施例11的摄影镜头。图21示出了根据本申请实施例11的摄影镜头的结构示意图。
如图21所示，根据本申请示例性实施方式的摄影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、第四透镜E4、第五透镜E5、第六透镜E6、滤光片E7和成像面S16。
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具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面。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S8为凸面，像侧面S9为凹面。第五透镜E5具有正光焦度，其物侧面S10为凹面，像侧面S11为凸面。第六透镜E6具有负光焦度，其物侧面S12为凹面，像侧面S13为凹面。滤光片E7具有物侧面S14和像侧面S15。来自物体的光依序穿过各表面S1至S15并最终成像在成像面S16上。
在本实施例的摄影镜头中，可在物侧与第一透镜E1之间设置用于限制光束的孔径光阑STO，以提高成像质量。可选地，摄影镜头还可包括设置于第三透镜E3与第四透镜E4之间的渐晕光阑ST。
表31示出了实施例11的摄影镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表32示出了可用于实施例11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。表33给出实施例11中各透镜的有效焦距f1至f6、摄影镜头的总有效焦距f、光学总长度TTL以及最大半视场角HFOV。
Figure PCTCN2019077465-appb-000017
表31
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.0339E-02 -8.2232E-03 4.6563E-04 1.5752E-02 -2.1225E-02 1.3340E-02 -4.3830E-03 7.0038E-04 -4.1349E-05
S2 -2.7910E-03 -5.4665E-02 1.1854E-01 -1.1962E-01 7.1072E-02 -2.7301E-02 7.9844E-03 -1.8605E-03 2.2321E-04
S3 6.5013E-03 -4.7303E-02 1.1770E-01 -1.3289E-01 8.5232E-02 -3.3621E-02 8.3096E-03 -1.1270E-03 2.5485E-05
S4 -3.5150E-02 4.2823E-02 -7.8214E-04 -6.6352E-02 7.1328E-02 -2.6726E-02 -5.3704E-04 2.5838E-03 -4.4822E-04
S5 -3.4986E-02 6.1721E-02 7.7839E-02 -3.0544E-01 3.9232E-01 -2.5379E-01 8.2738E-02 -1.0841E-02 0.0000E+00
S6 -2.8109E-02 1.0929E-01 -2.8754E-01 9.4161E-01 -2.0556E+00 2.7413E+00 -2.1358E+00 8.9444E-01 -1.5587E-01
S8 -9.6751E-02 -5.0477E-02 5.4599E-01 -1.6665E+00 3.2153E+00 -3.8511E+00 2.7876E+00 -1.1167E+00 1.8967E-01
S9 -8.6343E-02 -4.1060E-02 3.9882E-01 -1.0681E+00 1.7944E+00 -1.8675E+00 1.1736E+00 -4.0723E-01 5.9601E-02
S10 -9.1515E-03 -8.5604E-02 1.0646E-01 -1.0203E-01 6.4297E-02 -2.6696E-02 6.5601E-03 -8.0026E-04 3.3501E-05
S11 1.6579E-02 -1.0069E-01 1.1402E-01 -8.6122E-02 4.2740E-02 -1.4055E-02 2.8593E-03 -3.1788E-04 1.4603E-05
S12 -1.9228E-01 6.2433E-02 1.5646E-02 -1.9531E-02 6.3688E-03 -1.0213E-03 8.7454E-05 -3.7928E-06 6.4387E-08
S13 -1.3814E-01 7.2057E-02 -2.2426E-02 4.1323E-03 -4.6226E-04 2.9161E-05 -8.5677E-07 2.8080E-09 2.5688E-10
表32
f1(mm) 16.54 f6(mm) -4.98
f2(mm) 4.52 f(mm) 6.70
f3(mm) -6.99 TTL(mm) 6.60
f4(mm) -265.59 HFOV(°) 27.9
f5(mm) 11.34    
表33
图22A示出了实施例11的摄影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22B示出了实施例11的摄影镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图22C示出了实施例11的摄影镜头的畸变曲线，其表示不同像高所对应的畸变大小值。图22D示出了实施例11的摄影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22A 至图22D可知，实施例11所给出的摄影镜头能够实现良好的成像品质。
综上，实施例1至实施例11分别满足表34中所示的关系。
Figure PCTCN2019077465-appb-000018
Figure PCTCN2019077465-appb-000019
表34
本申请还提供一种摄像装置，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)。摄像装置可以是诸如数码相机的独立摄像设备，也可以是集成在诸如手机等移动电子设备上的摄像模块。该摄像装置装配有以上描述的摄影镜头。
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 (24)

  1. 摄影镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，
    所述第一透镜具有正光焦度；
    所述第二透镜具有正光焦度；
    所述第三透镜具有光焦度；
    所述第四透镜具有光焦度，其物侧面为凸面；
    所述第五透镜具有正光焦度；以及
    所述第六透镜具有负光焦度；
    所述摄影镜头的成像面上有效像素区域对角线长的一半ImgH与所述摄影镜头的总有效焦距f满足0.4＜ImgH/f＜0.6。
  2. 根据权利要求1所述的摄影镜头，其特征在于，所述第一透镜的有效焦距f1、所述第一透镜的物侧面的曲率半径R1与所述第一透镜的像侧面的曲率半径R2满足2＜f1/(R1+R2)＜4.5。
  3. 根据权利要求1所述的摄影镜头，其特征在于，所述第二透镜的有效焦距f2与所述第二透镜的物侧面的曲率半径R3满足1.5＜f2/|R3|＜2.5。
  4. 根据权利要求1所述的摄影镜头，其特征在于，所述第五透镜的有效焦距f5与所述第六透镜的有效焦距f6满足-2.5＜f5/f6＜-1.5。
  5. 根据权利要求1所述的摄影镜头，其特征在于，所述第四透镜的物侧面的曲率半径R7与所述第四透镜的像侧面的曲率半径R8满足0.2＜R8/R7≤1。
  6. 根据权利要求1所述的摄影镜头，其特征在于，所述第五透镜的有效焦距f5与所述第五透镜的物侧面的曲率半径R9满足1＜|f5/R9|＜2。
  7. 根据权利要求1所述的摄影镜头，其特征在于，所述第四透镜和所述第五透镜在所述光轴上的间隔距离T45、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与所述第四透镜于所述光轴上的中心厚度CT4满足0.6＜T45/(T34+CT4)＜1.5。
  8. 根据权利要求1所述的摄影镜头，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第二透镜于所述光轴上的中心厚度CT2满足2＜CT2/CT1＜2.5。
  9. 根据权利要求1所述的摄影镜头，其特征在于，所述第一透镜物侧面的最大有效半径DT11、所述第二透镜物侧面的最大有效半径DT21与所述第五透镜物侧面的最大有效半径DT51满足1mm＜DT11×DT21/DT51＜2mm。
  10. 根据权利要求1所述的摄影镜头，其特征在于，所述第五透镜和所述第六透镜的组合焦距f56与所述第一透镜、所述第二透镜和所述第三透镜的组合焦距f123满足1.5＜|f56/f123|＜4。
  11. 根据权利要求1至10中任一项所述的摄影镜头，其特征在于，所述第一透镜的物侧面至所述摄影镜头的成像面在所述光轴上的距离TTL与所述摄影镜头的总有效焦距f满足TTL/f＜1.1。
  12. 根据权利要求1至10中任一项所述的摄影镜头，其特征在于，所述摄影镜头的最大半视场角HFOV满足20°＜HFOV＜30°。
  13. 摄影镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，
    所述第一透镜具有正光焦度，其像侧面为凹面；
    所述第二透镜具有正光焦度，其物侧面为凸面；
    所述第三透镜具有光焦度；
    所述第四透镜具有光焦度；
    所述第五透镜具有正光焦度，其物侧面为凹面；以及
    所述第六透镜具有负光焦度；
    所述摄影镜头的最大半视场角HFOV满足20°＜HFOV＜30°。
  14. 根据权利要求13所述的摄影镜头，其特征在于，所述第一透镜的有效焦距f1、所述第一透镜的物侧面的曲率半径R1与所述第一透镜的像侧面的曲率半径R2满足2＜f1/(R1+R2)＜4.5。
  15. 根据权利要求13所述的摄影镜头，其特征在于，所述第二透镜的有效焦距f2与所述第二透镜的物侧面的曲率半径R3满足1.5＜f2/|R3|＜2.5。
  16. 根据权利要求13所述的摄影镜头，其特征在于，所述第四透镜和所述第五透镜在所述光轴上的间隔距离T45、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与所述第四透镜于所述光轴上的中心厚度CT4满足0.6＜T45/(T34+CT4)＜1.5。
  17. 根据权利要求13所述的摄影镜头，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第二透镜于所述光轴上的中心厚度CT2满足2＜CT2/CT1＜2.5。
  18. 根据权利要求13所述的摄影镜头，其特征在于，所述第五透镜和所述第六透镜的组合焦距f56与所述第一透镜、所述第二透镜和所述第三透镜的组合焦距f123满足1.5＜|f56/f123|＜4。
  19. 根据权利要求13所述的摄影镜头，其特征在于，所述第一透镜物侧面的最大有效半径DT11、所述第二透镜物侧面的最大有效半径DT21与所述第五透镜物侧面的最大有效半径DT51满足1mm＜DT11×DT21/DT51＜2mm。
  20. 根据权利要求13所述的摄影镜头，其特征在于，所述第五透镜的有效焦距f5与所述第六透镜的有效焦距f6满足-2.5＜f5/f6＜-1.5。
  21. 根据权利要求13所述的摄影镜头，其特征在于，所述第四透镜的物侧面的曲率半径R7与所述第四透镜的像侧面的曲率半径R8满足0.2＜R8/R7≤1。
  22. 根据权利要求13所述的摄影镜头，其特征在于，所述第五透镜的有效焦距f5与所述第五透镜的物侧面的曲率半径R9满足1＜|f5/R9|＜2。
  23. 根据权利要求13至22中任一项所述的摄影镜头，其特征在于，所述第一透镜的物侧面至所述摄影镜头的成像面在所述光轴上的距离TTL与所述摄影镜头的总有效焦距f满足TTL/f＜1.1。
  24. 根据权利要求23所述的摄影镜头，其特征在于，所述摄影镜头的成像面上有效像素区域对角线长的一半ImgH与所述摄影镜头的总有效焦距f满足0.4＜ImgH/f＜0.6。
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