WO2019218613A1 - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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Publication number
WO2019218613A1
WO2019218613A1 PCT/CN2018/113638 CN2018113638W WO2019218613A1 WO 2019218613 A1 WO2019218613 A1 WO 2019218613A1 CN 2018113638 W CN2018113638 W CN 2018113638W WO 2019218613 A1 WO2019218613 A1 WO 2019218613A1
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Prior art keywords
lens
optical imaging
imaging lens
image side
curvature
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PCT/CN2018/113638
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French (fr)
Chinese (zh)
Inventor
周鑫
杨健
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浙江舜宇光学有限公司
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Publication of WO2019218613A1 publication Critical patent/WO2019218613A1/en

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045Miniaturised 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

Definitions

  • the present application relates to an optical imaging lens, and more particularly to an optical imaging lens including six lenses.
  • the photosensitive element of a conventional image forming apparatus is generally a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).
  • CCD Charge-Coupled Device
  • CMOS Complementary Metal-Oxide Semiconductor
  • the present application provides an optical imaging lens having six lenses.
  • the optical imaging lens sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having power along the optical axis from the object side to the image side.
  • the first lens has a positive power
  • the second lens has a positive power and the image side of the second lens is a convex surface
  • the fifth lens has a negative power
  • the object side of the fifth lens has a concave surface
  • the image side surface of the fifth lens is a concave surface
  • the image side surface of the sixth lens is a concave surface.
  • the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4 ⁇ f2 / f1 ⁇ 8.
  • the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 ⁇ f / f1 ⁇ 3.
  • the effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: -1.5 ⁇ f5 / R12 ⁇ 0.
  • the half-diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the effective focal length f of the optical imaging lens satisfy: ImgH/f ⁇ 0.5.
  • the radius of curvature R10 of the image side of the fifth lens and the radius of curvature R9 of the object side of the fifth lens satisfy: -1.5 ⁇ R10 / R9 ⁇ 0.
  • the air gap T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens and the center thickness CT6 of the sixth lens satisfy: 0.5 ⁇ T56 / CT6 ⁇ 2.
  • the center thickness CT3 of the third lens and the air interval T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens satisfy: 0.5 ⁇ CT3 / T34 ⁇ 1.
  • the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R4 of the image side of the second lens satisfy: 0 ⁇ R8 / R4 ⁇ 0.5.
  • the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy: 3 ⁇ f / R1 ⁇ 4.
  • the combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens satisfy: 0 ⁇ f12 / f ⁇ 0.5.
  • the radius of curvature R12 of the image side of the sixth lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 0 ⁇ (R12 - R10) / (R12 + R10) ⁇ 1.
  • the present application provides an optical imaging lens having six lenses.
  • the optical imaging lens sequentially includes a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens from the object side to the image side along the optical axis.
  • the first lens has a positive power and the object side of the first lens is a convex surface; the second lens has a positive power and the image side of the second lens is a convex surface; and the image side of the fourth lens is a convex surface
  • the fifth lens has a negative refractive power, the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a concave surface; and the image side surface of the sixth lens is a concave surface.
  • the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 ⁇ f / f1 ⁇ 3.
  • the present application employs a six-piece lens, and the optical imaging lens is light, thin, and miniaturized by appropriately distributing the power, the surface shape, the center thickness of each lens, and the on-axis spacing between the lenses. At least one beneficial effect such as long focal length and high image quality.
  • FIG. 1 is a schematic structural view of an optical imaging lens according to Embodiment 1 of the present application.
  • 2A to 2D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;
  • FIG. 3 is a schematic structural view of an optical imaging lens according to Embodiment 2 of the present application.
  • 4A to 4D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2.
  • FIG. 5 is a schematic structural view of an optical imaging lens according to Embodiment 3 of the present application.
  • 6A to 6D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3.
  • FIG. 7 is a schematic structural view of an optical imaging lens according to Embodiment 4 of the present application.
  • 8A to 8D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 4;
  • FIG. 9 is a schematic structural view of an optical imaging lens according to Embodiment 5 of the present application.
  • 10A to 10D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 5;
  • FIG. 11 is a schematic structural view of an optical imaging lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 6;
  • FIG. 13 is a schematic structural view of an optical imaging lens according to Embodiment 7 of the present application.
  • 14A to 14D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;
  • FIG. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.
  • 16A to 16D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 8.
  • first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature.
  • first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
  • the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation.
  • the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings.
  • the drawings are only examples and are not to scale.
  • the optical imaging lens may include, for example, six lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens.
  • the six lenses are sequentially arranged from the object side to the image side along the optical axis.
  • the image side surface of the second lens is a convex surface; the object side surface of the fifth lens is a concave surface and the image side surface is a concave surface; and the image side surface of the sixth lens is a concave surface.
  • the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4 ⁇ f2 / f1 ⁇ 8, and more specifically, 4.73 ⁇ f2 / f1 ⁇ 7.37.
  • the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 ⁇ f / f1 ⁇ 3, more specifically, 1.83 ⁇ f / f1 ⁇ 2.11.
  • the effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: -1.5 ⁇ f5 / R12 ⁇ 0, more specifically - 1.12 ⁇ f5 / R12 ⁇ -0.21.
  • the half-diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the effective focal length f of the optical imaging lens satisfy: ImgH/f ⁇ 0.5, more specifically: ImgH/f ⁇ 0.44 .
  • the optical imaging lens can satisfy the characteristics of telephoto.
  • the radius of curvature R10 of the image side of the fifth lens and the radius of curvature R9 of the object side of the fifth lens satisfy: -1.5 ⁇ R10/R9 ⁇ 0, more specifically -1.25 ⁇ R10/R9 ⁇ -0.07 .
  • the air gap T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens and the center thickness CT6 of the sixth lens satisfy: 0.5 ⁇ T56/CT6 ⁇ 2, more specifically, 0.72 ⁇ T56 /CT6 ⁇ 1.67.
  • the center thickness CT3 of the third lens and the air gap T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens satisfy: 0.5 ⁇ CT3/T34 ⁇ 1, more specifically, 0.54 ⁇ CT3 /T34 ⁇ 0.82.
  • the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R4 of the image side of the second lens satisfy: 0 ⁇ R8 / R4 ⁇ 0.5, more specifically, 0.03 ⁇ R8 / R4 ⁇ 0.49.
  • the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy: 3 ⁇ f / R1 ⁇ 4, more specifically, 3.52 ⁇ f / R1 ⁇ 3.8.
  • the combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens satisfy: 0 ⁇ f12 / f ⁇ 0.5, more specifically, 0.42 ⁇ f12 / f ⁇ 0.49.
  • the radius of curvature R12 of the image side of the sixth lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 0 ⁇ (R12 - R10) / (R12 + R10) ⁇ 1, more specifically, 0.21 ⁇ (R12-R10) / (R12 + R10) ⁇ 0.66.
  • the optical imaging lens may further include at least one aperture to enhance the imaging quality of the lens.
  • the diaphragm can be disposed at the first lens.
  • the above optical imaging lens may further include a filter for correcting the color deviation and/or a cover glass for protecting the photosensitive element on the imaging surface.
  • the optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, such as the six described above.
  • a plurality of lenses such as the six described above.
  • the volume 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 optical imaging lens is made more advantageous for production processing and can be applied to portable electronic products.
  • the optical imaging lens of the above configuration has advantages such as thinness, miniaturization, long focal length, and high image quality.
  • At least one of the mirror faces of each lens is an aspherical mirror.
  • the aspherical lens is characterized by a continuous change in curvature from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving distortion and improving astigmatic aberration. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality.
  • optical imaging lens is not limited to including six lenses.
  • the optical imaging lens can also include other numbers of lenses if desired.
  • FIG. 1 is a block diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a convex surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 1, in which the unit of curvature radius and thickness are all millimeters (mm).
  • each aspherical lens can be defined by using, but not limited to, the following aspherical formula:
  • x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the a-th order of the aspherical surface.
  • Table 2 gives the higher order coefficient A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 which can be used for each aspherical mirror surface S1-S16 in the embodiment 1. .
  • the first lens E1 to the sixth lens E6 are aspherical mirrors.
  • Table 3 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 1, the total effective focal length f of the optical imaging lens, and the optical total length TTL of the optical imaging lens (i.e., from the center of the object side S1 of the first lens E1 to imaging) The distance of the face S15 on the optical axis) and the horizontal field of view angle HFOV of the optical imaging lens.
  • the optical imaging lens has the following parameter configuration.
  • CT3/T34 0.57.
  • FIG. 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • 2B shows an astigmatism curve of the optical imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature.
  • 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which shows distortion magnitude values in the case of different viewing angles.
  • 2D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates a deviation of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive 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 refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a positive refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 2, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 5 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 6 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 2, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • 4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • 4B shows an astigmatism curve of the optical imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature.
  • 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which shows distortion magnitude values in the case of different viewing angles.
  • 4D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a block diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a convex surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 8 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 9 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 3, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 6B shows an astigmatism curve of the optical imaging lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 6A to 6D, the optical imaging lens given in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a block diagram showing the structure of an optical imaging lens according to Embodiment 4 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface.
  • the second lens E2 has a positive refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface.
  • the sixth lens E6 has a positive refractive power
  • the object side surface S11 is a convex surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 10 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 11 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 12 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 4, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 8A to 8D, the optical imaging lens given in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a block diagram showing the structure of an optical imaging lens according to Embodiment 5 of the present application.
  • an optical imaging lens includes, in order from an object side to an image side along an optical axis, a stop STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
  • the first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 5, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 14 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 5, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 15 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 5, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 10B shows an astigmatism curve of the optical imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a view showing the configuration of an optical imaging lens according to Embodiment 6 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 16 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 6, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 17 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 6, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 18 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 6, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 12A shows an axial chromatic aberration curve of the optical imaging lens of Example 6, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 12B shows an astigmatism curve of the optical imaging lens of Example 6, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 12C shows a distortion curve of the optical imaging lens of Embodiment 6, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 6, which shows the deviation of different image heights on the imaging plane after the light passes through the lens. 12A to 12D, the optical imaging lens given in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a view showing the configuration of an optical imaging lens according to Embodiment 7 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a convex surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 13 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 7, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 20 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 7, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 21 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 7, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 14A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 14B shows an astigmatism curve of the optical imaging lens of Embodiment 7, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 14A to 14D, the optical imaging lens given in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a concave surface.
  • the filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 15 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 8, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 23 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 8, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • the first to sixth lenses E1 to E6 are aspherical mirrors.
  • Table 24 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 8, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
  • Fig. 16A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 8, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 16B shows an astigmatism curve of the optical imaging lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 16A to 16D, the optical imaging lens given in Embodiment 8 can achieve good imaging quality.
  • Embodiments 1 to 8 satisfy the relationship shown in Table 25.
  • the present application also provides an image forming apparatus whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be a stand-alone imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging lens described above.

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Abstract

An optical imaging lens comprises, in order from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5) and a sixth lens (E6) having respective optical powers, wherein: the first lens has a positive optical power; the second lens has a positive optical power and an image-side surface (S4) thereof is a convex surface; the fifth lens has a negative optical power, an object-side surface (S9) thereof is a concave surface, and an image-side surface (S10) thereof is a concave surface; and an image-side surface (S12) of the sixth lens is a concave surface. Further, an effective focal length f2 of the second lens and an effective focal length f1 of the first lens satisfy: 4<f2/f1<8.

Description

光学成像镜头Optical imaging lens
相关申请的交叉引用Cross-reference to related applications
本申请要求于2018年5月14日递交于中国国家知识产权局(CNIPA)的、申请号为201810454110.3、发明名称为“光学成像镜头”的中国发明专利申请的优先权和权益,该中国发明专利申请通过引用整体并入本文。This application claims the priority and interest of the Chinese invention patent application filed on May 14, 2018 by the State Intellectual Property Office of China (CNIPA) with application number 201810454110.3 and the invention name "optical imaging lens". The application is hereby incorporated by reference in its entirety.
技术领域Technical field
本申请涉及一种光学成像镜头,更具体地,涉及一种包括六片透镜的光学成像镜头。The present application relates to an optical imaging lens, and more particularly to an optical imaging lens including six lenses.
背景技术Background technique
常规成像装置的感光元件一般为CCD(Charge-Coupled Device,感光耦合元件)或CMOS(Complementary Metal-Oxide Semiconductor,互补性氧化金属半导体元件)。CCD与COMS元件性能的提高及尺寸的减小为光学成像镜头的发展提供了有利条件。与此同时,诸如智能手机等配备了成像装置的电子设备的小型化发展趋势,对于摄像装置所配备的光学成像镜头的小型化与成像优质化提出了更高的要求。The photosensitive element of a conventional image forming apparatus is generally a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor). The improved performance and size reduction of CCD and COMS components provide favorable conditions for the development of optical imaging lenses. At the same time, the trend toward miniaturization of electronic devices equipped with imaging devices, such as smart phones, has placed higher demands on miniaturization and imaging quality of optical imaging lenses equipped with imaging devices.
近年来,越来越多的智能手机开始配备双摄组合。在这种配置下,广角镜头与长焦镜头配合,构成双摄组合从而达到变焦的目的。这样的双摄组合在自动对焦情况下可得到理想的放大倍率以及良好的成像效果。其既适合拍摄近物,也适合于拍摄远处的对象,并且在同一拍摄距离上能获取更多的细节。这种双摄组合使得人们得到不同的视觉效果感受,同时保证了加工特性以及小型化。因此,需要一种小型化且具有优良成像品质的长焦镜头。In recent years, more and more smartphones have begun to be equipped with a dual camera combination. In this configuration, the wide-angle lens and the telephoto lens cooperate to form a dual-camera combination for zooming purposes. This dual-camera combination provides ideal magnification and good imaging in autofocus. It is suitable for shooting close-ups as well as for shooting distant objects, and can get more details at the same shooting distance. This dual-camera combination allows people to experience different visual effects while ensuring processing characteristics and miniaturization. Therefore, there is a need for a telephoto lens that is miniaturized and has excellent image quality.
发明内容Summary of the invention
本申请提供了一种具有六片透镜的光学成像镜头。所述光学成像镜头沿着光轴由物侧至像侧依序包括具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜。在所述光学成像镜头中:第一透镜具有正光焦度;第二透镜具有正光焦度并且第二透镜的像侧面为凸面;第五透镜具有负光焦度,第五透镜的物侧面为凹面并且第五透镜的像侧面为凹面;以及第六透镜的像侧面为凹面。另外,第二透镜的有效焦距f2与第一透镜的有效焦距f1满足:4<f2/f1<8。The present application provides an optical imaging lens having six lenses. The optical imaging lens sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having power along the optical axis from the object side to the image side. In the optical imaging lens: the first lens has a positive power; the second lens has a positive power and the image side of the second lens is a convex surface; the fifth lens has a negative power, and the object side of the fifth lens has a concave surface And the image side surface of the fifth lens is a concave surface; and the image side surface of the sixth lens is a concave surface. In addition, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4 < f2 / f1 < 8.
根据本申请的实施例,第一透镜的有效焦距f1与光学成像镜头的有效焦距f满足:1.5<f/f1<3。According to an embodiment of the present application, the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 < f / f1 < 3.
根据本申请的实施例,第五透镜的有效焦距f5与第六透镜的像侧面的曲率半径R12满足:-1.5<f5/R12<0。According to an embodiment of the present application, the effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: -1.5 < f5 / R12 < 0.
根据本申请的实施例,光学成像镜头的成像面上有效像素区域的半对角线长ImgH与光学成像镜头的有效焦距f满足:ImgH/f<0.5。According to an embodiment of the present application, the half-diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the effective focal length f of the optical imaging lens satisfy: ImgH/f<0.5.
根据本申请的实施例,第五透镜的像侧面的曲率半径R10与第五透镜的物侧面的曲率半径R9满足:-1.5<R10/R9<0。According to an embodiment of the present application, the radius of curvature R10 of the image side of the fifth lens and the radius of curvature R9 of the object side of the fifth lens satisfy: -1.5 < R10 / R9 < 0.
根据本申请的实施例,第五透镜与第六透镜在光学成像镜头的光轴上的空气间隔T56与第六透镜的中心厚度CT6满足:0.5<T56/CT6<2。According to an embodiment of the present application, the air gap T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens and the center thickness CT6 of the sixth lens satisfy: 0.5 < T56 / CT6 < 2.
根据本申请的实施例,第三透镜的中心厚度CT3和第三透镜与第四透镜在光学成像镜头的光轴上的空气间隔T34满足:0.5<CT3/T34<1。According to an embodiment of the present application, the center thickness CT3 of the third lens and the air interval T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens satisfy: 0.5 < CT3 / T34 < 1.
根据本申请的实施例,第四透镜的像侧面的曲率半径R8与第二透镜的像侧面的曲率半径R4满足:0<R8/R4<0.5。According to an embodiment of the present application, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R4 of the image side of the second lens satisfy: 0 < R8 / R4 < 0.5.
根据本申请的实施例,光学成像镜头的有效焦距f与第一透镜的物侧面的曲率半径R1满足:3<f/R1<4。According to an embodiment of the present application, the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy: 3 < f / R1 < 4.
根据本申请的实施例,第一透镜和第二透镜的组合焦距f12与光学成像镜头的有效焦距f满足:0<f12/f<0.5。According to an embodiment of the present application, the combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens satisfy: 0 < f12 / f < 0.5.
根据本申请的实施例,第六透镜的像侧面的曲率半径R12与第五透镜的像侧面的曲率半径R10满足:0<(R12-R10)/(R12+R10)<1。According to an embodiment of the present application, the radius of curvature R12 of the image side of the sixth lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 0 < (R12 - R10) / (R12 + R10) < 1.
本申请提供了一种具有六片透镜的光学成像镜头。光学成像镜头沿着光轴由物侧至像侧依序包括具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜。在所述光学成像镜头中:第一透镜具有正光焦度并且第一透镜的物侧面为凸面;第二透镜具有正光焦度并且第二透镜的像侧面为凸面;第四透镜的像侧面为凸面;第五透镜具有负光焦度,第五透镜的物侧面为凹面并且第五透镜的像侧面为凹面;以及第六透镜的像侧面为凹面。另外,第一透镜的有效焦距f1与光学成像镜头的有效焦距f满足:1.5<f/f1<3。The present application provides an optical imaging lens having six lenses. The optical imaging lens sequentially includes a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens from the object side to the image side along the optical axis. In the optical imaging lens: the first lens has a positive power and the object side of the first lens is a convex surface; the second lens has a positive power and the image side of the second lens is a convex surface; and the image side of the fourth lens is a convex surface The fifth lens has a negative refractive power, the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a concave surface; and the image side surface of the sixth lens is a concave surface. In addition, the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 < f / f1 < 3.
本申请采用了六片式透镜,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,使得上述光学成像镜头具有轻薄化、小型化、长焦距、高成像品质等至少一项有益效果。The present application employs a six-piece lens, and the optical imaging lens is light, thin, and miniaturized by appropriately distributing the power, the surface shape, the center thickness of each lens, and the on-axis spacing between the lenses. At least one beneficial effect such as long focal length and high image quality.
附图说明DRAWINGS
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:Other features, objects, and advantages of the present invention will become more apparent from the description of the appended claims. In the drawing:
图1示出了根据本申请实施例1的光学成像镜头的结构示意图;1 is a schematic structural view of an optical imaging lens according to Embodiment 1 of the present application;
图2A至图2D分别示出了实施例1的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;2A to 2D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;
图3示出了根据本申请实施例2的光学成像镜头的结构示意图;3 is a schematic structural view of an optical imaging lens according to Embodiment 2 of the present application;
图4A至图4D分别示出了实施例2的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;4A to 4D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2.
图5示出了根据本申请实施例3的光学成像镜头的结构示意图;FIG. 5 is a schematic structural view of an optical imaging lens according to Embodiment 3 of the present application;
图6A至图6D分别示出了实施例3的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;6A to 6D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3.
图7示出了根据本申请实施例4的光学成像镜头的结构示意图;FIG. 7 is a schematic structural view of an optical imaging lens according to Embodiment 4 of the present application;
图8A至图8D分别示出了实施例4的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;8A to 8D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 4;
图9示出了根据本申请实施例5的光学成像镜头的结构示意图;9 is a schematic structural view of an optical imaging lens according to Embodiment 5 of the present application;
图10A至图10D分别示出了实施例5的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;10A to 10D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 5;
图11示出了根据本申请实施例6的光学成像镜头的结构示意图;11 is a schematic structural view of an optical imaging lens according to Embodiment 6 of the present application;
图12A至图12D分别示出了实施例6的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 6;
图13示出了根据本申请实施例7的光学成像镜头的结构示意图;FIG. 13 is a schematic structural view of an optical imaging lens according to Embodiment 7 of the present application;
图14A至图14D分别示出了实施例7的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线;14A to 14D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;
图15示出了根据本申请实施例8的光学成像镜头的结构示意图;以及FIG. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application;
图16A至图16D分别示出了实施例8的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线。16A to 16D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 8.
具体实施方式Detailed ways
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。For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is only illustrative of the exemplary embodiments of the present application, and is not intended to limit the scope of the application. Throughout the specification, the same drawing reference numerals refer to the same elements. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
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。It should be noted that in the present specification, the expressions of the first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature. Thus, the first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
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。In the drawings, the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation. Specifically, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings. The drawings are only examples and are not to scale.
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。It is also to be understood that the terms "comprising", "including", "having", "include","," However, it is not excluded that one or more other features, elements, components, and/or combinations thereof are present. Moreover, when an expression such as "at least one of" appears after the list of listed features, the entire listed features are modified instead of the individual elements in the list. Further, when describing an embodiment of the present application, "may" is used to mean "one or more embodiments of the present application." Also, the term "exemplary" is intended to mean an example or an illustration.
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。All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having meaning consistent with their meaning in the context of the related art, and will not be interpreted in an idealized or overly formal sense unless This is clearly defined in this article.
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。It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings.
以下对本申请的特征、原理和其他方面进行详细描述。The features, principles, and other aspects of the present application are described in detail below.
根据本申请示例性实施方式的光学成像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。The optical imaging lens according to an exemplary embodiment of the present application may include, for example, six lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The six lenses are sequentially arranged from the object side to the image side along the optical axis.
在示例性实施方式中,第二透镜的像侧面为凸面;第五透镜的物侧面为凹面且像侧面为凹面;以及第六透镜的像侧面为凹面。In an exemplary embodiment, the image side surface of the second lens is a convex surface; the object side surface of the fifth lens is a concave surface and the image side surface is a concave surface; and the image side surface of the sixth lens is a concave surface.
在示例性实施方式中,第二透镜的有效焦距f2与第一透镜的有效焦距f1满足:4<f2/f1<8,更具体地,4.73≤f2/f1≤7.37。通过合理分配第二透镜和第一透镜的有效焦距,可有效控制光学成像镜头的体积并提升性能,使光学成像镜头具有较好的平衡像差的能力。In an exemplary embodiment, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4 < f2 / f1 < 8, and more specifically, 4.73 ≤ f2 / f1 ≤ 7.37. By properly distributing the effective focal length of the second lens and the first lens, the volume of the optical imaging lens can be effectively controlled and the performance can be improved, so that the optical imaging lens has a good balance aberration ability.
在示例性实施方式中,第一透镜的有效焦距f1与光学成像镜头的有效焦距f满足:1.5<f/f1<3,更具体地,1.83≤f/f1≤2.11。通过合理设置第一透镜的有效焦距,有助于光学成像镜头实现长焦的特性。此外,还可保证对光线的汇聚能力,调整光线聚焦位置,缩短光学成像镜头的总长。In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5 < f / f1 < 3, more specifically, 1.83 ≤ f / f1 ≤ 2.11. By properly setting the effective focal length of the first lens, it is advantageous for the optical imaging lens to achieve telephoto characteristics. In addition, it also ensures the ability to concentrate light, adjust the focus position of the light, and shorten the total length of the optical imaging lens.
在示例性实施方式中,第五透镜的有效焦距f5与第六透镜的像侧面的曲率半径R12满足:-1.5<f5/R12<0,更具体地,-1.12≤f5/R12≤-0.21。通过合理选择第五透镜的有效焦距和第六透镜的像侧面的曲率半径之间的比值,在第五透镜光焦度为负的情况下,确保第六透镜像 侧面的曲率半径为正,即像侧面为凹面,能有效平衡光学成像镜头的像散,并进一步确保光学成像镜头的小型化。In an exemplary embodiment, the effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: -1.5 < f5 / R12 < 0, more specifically - 1.12 ≤ f5 / R12 ≤ -0.21. By reasonably selecting the ratio between the effective focal length of the fifth lens and the radius of curvature of the image side of the sixth lens, in the case where the fifth lens power is negative, it is ensured that the radius of curvature of the side surface of the sixth lens image is positive, that is, The concave side of the image side effectively balances the astigmatism of the optical imaging lens and further ensures the miniaturization of the optical imaging lens.
在示例性实施方式中,光学成像镜头的成像面上有效像素区域的半对角线长ImgH与光学成像镜头的有效焦距f满足:ImgH/f<0.5,更具体地,:ImgH/f≤0.44。通过合理控制成像面上有效像素区域的半对角线长与光学成像镜头的有效焦距之间的比值,可保证光学成像镜头满足长焦的特性。In an exemplary embodiment, the half-diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the effective focal length f of the optical imaging lens satisfy: ImgH/f<0.5, more specifically: ImgH/f≤0.44 . By reasonably controlling the ratio between the half-diagonal length of the effective pixel area on the imaging surface and the effective focal length of the optical imaging lens, the optical imaging lens can satisfy the characteristics of telephoto.
在一个实施方式中,第五透镜的像侧面的曲率半径R10与第五透镜的物侧面的曲率半径R9满足:-1.5<R10/R9<0,更具体地-1.25≤R10/R9≤-0.07。通过合理控制第五透镜的像侧面和物侧面的曲率半径,在第五透镜像侧面为凹面的情况下,保证其物侧面也为凹面。使光学成像镜头具备较好的平衡色差和畸变的能力。In one embodiment, the radius of curvature R10 of the image side of the fifth lens and the radius of curvature R9 of the object side of the fifth lens satisfy: -1.5<R10/R9<0, more specifically -1.25≤R10/R9≤-0.07 . By appropriately controlling the radius of curvature of the image side surface and the object side surface of the fifth lens, in the case where the fifth lens image side surface is concave, it is ensured that the object side surface is also concave. The optical imaging lens has a good ability to balance chromatic aberration and distortion.
在一个实施方式中,第五透镜与第六透镜在光学成像镜头的光轴上的空气间隔T56与第六透镜的中心厚度CT6满足:0.5<T56/CT6<2,更具体地,0.72≤T56/CT6≤1.67。通过合理分配第五透镜与第六透镜在光轴上的空气间隔和第六透镜的中心厚度之间的比值,能有效降低光学成像镜头的尺寸,并满足长焦的特性。同时有利于调整光学成像镜头的结构,降低镜片加工和组装的难度。In one embodiment, the air gap T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens and the center thickness CT6 of the sixth lens satisfy: 0.5<T56/CT6<2, more specifically, 0.72≤T56 /CT6≤1.67. By reasonably distributing the ratio between the air gap of the fifth lens and the sixth lens on the optical axis and the center thickness of the sixth lens, the size of the optical imaging lens can be effectively reduced, and the characteristics of the telephoto can be satisfied. At the same time, it is beneficial to adjust the structure of the optical imaging lens and reduce the difficulty of lens processing and assembly.
在一个实施方式中,第三透镜的中心厚度CT3和第三透镜与第四透镜在光学成像镜头的光轴上的空气间隔T34满足:0.5<CT3/T34<1,更具体地,0.54≤CT3/T34≤0.82。通过合理控制第三透镜的中心厚度和第三透镜与第四透镜在光轴上的空气间隔之间的比值,使透镜间具有足够的间隔空间,从而使透镜表面自由度变化更高,以此来提升光学成像镜头校正像散和场曲的能力。In one embodiment, the center thickness CT3 of the third lens and the air gap T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens satisfy: 0.5<CT3/T34<1, more specifically, 0.54≤CT3 /T34≤0.82. By reasonably controlling the ratio between the center thickness of the third lens and the air spacing of the third lens and the fourth lens on the optical axis, there is sufficient space between the lenses, so that the degree of freedom of the lens surface is changed more, thereby To enhance the ability of optical imaging lenses to correct astigmatism and field curvature.
在一个实施方式中,第四透镜的像侧面的曲率半径R8与第二透镜的像侧面的曲率半径R4满足:0<R8/R4<0.5,更具体地,0.03≤R8/R4≤0.49。通过合理分配第四透镜像侧面的曲率半径和第二透镜像侧面的曲率半径,在第二透镜像侧面为凸面的情况下,保证了第四透镜像侧面同为凸面。在这种情况下,可有效地平衡光学成像镜头的像散,并进一步确保光学成像镜头的小型化。In one embodiment, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R4 of the image side of the second lens satisfy: 0 < R8 / R4 < 0.5, more specifically, 0.03 ≤ R8 / R4 ≤ 0.49. By appropriately distributing the radius of curvature of the side surface of the fourth lens image and the radius of curvature of the side surface of the second lens image, in the case where the side surface of the second lens image is convex, it is ensured that the side surface of the fourth lens image is convex. In this case, the astigmatism of the optical imaging lens can be effectively balanced, and the miniaturization of the optical imaging lens can be further ensured.
在一个实施方式中,光学成像镜头的有效焦距f与第一透镜的物侧面的曲率半径R1满足:3<f/R1<4,更具体地,3.52≤f/R1≤3.8。通过合理控制第一透镜的物侧面的曲率半径,可有效平衡光学成像镜头的像散,合理控制主光线偏转角度,进一步确保光学成像镜头的小型化。In one embodiment, the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy: 3 < f / R1 < 4, more specifically, 3.52 ≤ f / R1 ≤ 3.8. By properly controlling the radius of curvature of the object side surface of the first lens, the astigmatism of the optical imaging lens can be effectively balanced, and the chief ray deflection angle can be reasonably controlled to further ensure the miniaturization of the optical imaging lens.
在一个实施方式中,第一透镜和第二透镜的组合焦距f12与光学成像镜头的有效焦距f满足:0<f12/f<0.5,更具体地,0.42≤f12/f≤0.49。通过合理控制第一透镜和第二透镜的组合焦距,可以在校正像差的同时,实现长焦的特性。此外,在这种情况下,还有助于适当缩短光学成像镜头的总长,满足轻薄的要求。In one embodiment, the combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens satisfy: 0 < f12 / f < 0.5, more specifically, 0.42 < f12 / f < 0.49. By properly controlling the combined focal length of the first lens and the second lens, it is possible to achieve the characteristics of the telephoto while correcting the aberration. In addition, in this case, it is also helpful to appropriately shorten the total length of the optical imaging lens to meet the requirements of thinness and lightness.
在一个实施方式中,第六透镜的像侧面的曲率半径R12与第五透镜的像侧面的曲率半径R10满足:0<(R12-R10)/(R12+R10)<1,更具体地,0.21≤(R12-R10)/(R12+R10)≤0.66。通过合理分配第六透镜的像侧面和第五透镜的像侧面的曲率半径,可以使光学成像镜头能更好地匹配芯片的主光线角度。In one embodiment, the radius of curvature R12 of the image side of the sixth lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 0 < (R12 - R10) / (R12 + R10) < 1, more specifically, 0.21 ≤ (R12-R10) / (R12 + R10) ≤ 0.66. By properly distributing the radius of curvature of the image side of the sixth lens and the image side of the fifth lens, the optical imaging lens can be better matched to the chief ray angle of the chip.
在示例性实施方式中,光学成像镜头还可包括至少一个光阑,以提升镜头的成像质量。例如,光阑可设置在第一透镜处。In an exemplary embodiment, the optical imaging lens may further include at least one aperture to enhance the imaging quality of the lens. For example, the diaphragm can be disposed at the first lens.
可选地,上述光学成像镜头还可包括用于校正色彩偏差的滤光片和/或用于保护位于成像面上的感光元件的保护玻璃。Alternatively, the above optical imaging lens may further include a filter for correcting the color deviation and/or a cover glass for protecting the photosensitive element on the imaging surface.
根据本申请的上述实施方式的光学成像镜头可采用多片镜片,例如上文所述的六片。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,使得光学成像镜头更有利于生产加工并且可适用于便携式电子产品。同时,通过上述配置的光学成像镜头,还具有例如轻薄化、小型化、长焦距、高成像品质等有益效果。The optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, such as the six described above. By properly distributing the power of each lens, the surface shape, the center thickness of each lens, and the on-axis spacing between the lenses, the volume 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 optical imaging lens is made more advantageous for production processing and can be applied to portable electronic products. At the same time, the optical imaging lens of the above configuration has advantages such as thinness, miniaturization, long focal length, and high image quality.
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。In an embodiment of the present application, at least one of the mirror faces of each lens is an aspherical mirror. The aspherical lens is characterized by a continuous change in curvature from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving distortion and improving astigmatic aberration. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality.
然而,本领域的技术人员应当理解,在未背离本申请要求保护的技术方案的情况下,可改变构成光学成像镜头的透镜数量,来获得本说明书中描述的各个结果和优点。例如,虽然在实施方式中以六个透镜为例进行了描述,但是该光学成像镜头不限于包括六个透镜。如果需要,该光学成像镜头还可包括其它数量的透镜。However, those skilled in the art will appreciate that the various results and advantages described in this specification can be obtained without varying the number of lenses that make up the optical imaging lens without departing from the technical solutions claimed herein. For example, although six lenses have been described as an example in the embodiment, the optical imaging lens is not limited to including six lenses. The optical imaging lens can also include other numbers of lenses if desired.
下面参照附图进一步描述可适用于上述实施方式的光学成像镜头的具体实施例。A specific embodiment of an optical imaging lens applicable to the above embodiment will be further described below with reference to the accompanying drawings.
实施例1Example 1
以下参照图1至图2D描述根据本申请实施例1的光学成像镜头。图1示出了根据本申请实施例1的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 1 of the present application will be described below with reference to FIGS. 1 through 2D. FIG. 1 is a block diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.
如图1所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 1, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
第一透镜E1具有正光焦度,其物侧面S1为凸面,像侧面S2为凸面。第二透镜E2具有正光焦度,其物侧面S3为凹面,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具有正光焦度,其物侧面S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凸面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface. The second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface. The third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, and the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表1示出了实施例1的光学成像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)。Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 1, in which the unit of curvature radius and thickness are all millimeters (mm).
Figure PCTCN2018113638-appb-000001
Figure PCTCN2018113638-appb-000001
Figure PCTCN2018113638-appb-000002
Figure PCTCN2018113638-appb-000002
表1Table 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:As is clear from Table 1, the object side surface and the image side surface of any one of the first lens E1 to the sixth lens E6 are aspherical. In this embodiment, the face shape x of each aspherical lens can be defined by using, but not limited to, the following aspherical formula:
Figure PCTCN2018113638-appb-000003
Figure PCTCN2018113638-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-S16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。可见,在本实施例中,第一透镜E1至第六透镜E6为非球面镜。 Where x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high; c is the abaxial curvature of the aspherical surface, c=1/R (ie, the paraxial curvature c is the above table) 1 is the reciprocal of the radius of curvature R; k is the conic coefficient (given in Table 1); Ai is the correction coefficient of the a-th order of the aspherical surface. Table 2 below gives the higher order coefficient A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 which can be used for each aspherical mirror surface S1-S16 in the embodiment 1. . It can be seen that in the present embodiment, the first lens E1 to the sixth lens E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 9.2810E-039.2810E-03 2.7840E-032.7840E-03 3.4850E-033.4850E-03 -5.1400E-03-5.1400E-03 5.8440E-035.8440E-03 -3.3600E-03-3.3600E-03 5.9400E-045.9400E-04 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 7.0610E-037.0610E-03 9.7564E-029.7564E-02 -1.6166E-01-1.6166E-01 1.5082E-011.5082E-01 -1.0594E-01-1.0594E-01 5.3240E-025.3240E-02 -1.2270E-02-1.2270E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 -6.6300E-03-6.6300E-03 1.5312E-011.5312E-01 -2.2949E-01-2.2949E-01 1.7969E-011.7969E-01 -1.0490E-01-1.0490E-01 5.5076E-025.5076E-02 -1.5330E-02-1.5330E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 -2.7520E-02-2.7520E-02 2.6710E-012.6710E-01 -4.7785E-01-4.7785E-01 4.1961E-014.1961E-01 -1.7440E-01-1.7440E-01 1.5724E-021.5724E-02 7.0930E-037.0930E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.2273E-01-1.2273E-01 4.8560E-014.8560E-01 -1.0199E+00-1.0199E+00 1.3394E+001.3394E+00 -1.0554E+00-1.0554E+00 4.6183E-014.6183E-01 -8.4300E-02-8.4300E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 4.5245E-024.5245E-02 2.1528E-022.1528E-02 -1.2526E-01-1.2526E-01 1.2150E-011.2150E-01 6.8721E-026.8721E-02 -1.1386E-01-1.1386E-01 1.4022E-021.4022E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.2771E-01-1.2771E-01 -9.0390E-02-9.0390E-02 6.0028E-026.0028E-02 6.7472E-016.7472E-01 -7.1627E+00-7.1627E+00 2.2923E+012.2923E+01 -3.6888E+01-3.6888E+01 3.1985E+013.1985E+01 -1.2380E+01-1.2380E+01
S8S8 -6.0414E-01-6.0414E-01 3.0745E+003.0745E+00 -1.2887E+01-1.2887E+01 4.1993E+014.1993E+01 -1.0383E+02-1.0383E+02 1.7598E+021.7598E+02 -1.8738E+02-1.8738E+02 1.1259E+021.1259E+02 -2.9414E+01-2.9414E+01
S9S9 -4.5887E-01-4.5887E-01 1.8229E+001.8229E+00 -4.5802E+00-4.5802E+00 6.7481E+006.7481E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -2.9516E-01-2.9516E-01 7.6933E-017.6933E-01 -1.5559E+00-1.5559E+00 1.9333E+001.9333E+00 -1.3794E+00-1.3794E+00 5.0577E-015.0577E-01 -7.0540E-02-7.0540E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -8.5120E-02-8.5120E-02 5.7322E-025.7322E-02 -4.5840E-02-4.5840E-02 3.3990E-023.3990E-02 -1.8630E-02-1.8630E-02 6.7610E-036.7610E-03 -1.4900E-03-1.4900E-03 1.7300E-041.7300E-04 -7.7532E-06-7.7532E-06
S12S12 -9.5580E-02-9.5580E-02 6.2063E-026.2063E-02 -4.7020E-02-4.7020E-02 2.6762E-022.6762E-02 -1.0430E-02-1.0430E-02 2.6600E-032.6600E-03 -4.2000E-04-4.2000E-04 3.8300E-053.8300E-05 -1.5041E-06-1.5041E-06
表2Table 2
表3给出实施例1中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL(即,从第一透镜E1的物侧面S1的中心至成像面S15在光轴上的距离)以及光学成像镜头的水平视场角HFOV。Table 3 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 1, the total effective focal length f of the optical imaging lens, and the optical total length TTL of the optical imaging lens (i.e., from the center of the object side S1 of the first lens E1 to imaging) The distance of the face S15 on the optical axis) and the horizontal field of view angle HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.632.63 f(mm)f(mm) 5.555.55
f2(mm)F2 (mm) 16.6716.67 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -3.02-3.02 HFOV(°)HFOV(°) 23.323.3
f4(mm)F4(mm) 4.994.99    
f5(mm)F5 (mm) -3.82-3.82    
f6(mm)F6(mm) -14.46-14.46    
表3table 3
在实施例1中,光学成像镜头具有如下参数配置。In Embodiment 1, the optical imaging lens has the following parameter configuration.
第二透镜的有效焦距f2与第一透镜的有效焦距f1满足:f2/f1=6.34。The effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: f2/f1 = 6.34.
第一透镜的有效焦距f1与光学成像镜头的有效焦距f满足:f/f1=2.11。The effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: f/f1 = 2.11.
第五透镜的有效焦距f5与第六透镜的像侧面的曲率半径R12满足:f5/R12=-0.59。The effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: f5/R12=-0.59.
光学成像镜头的成像面上有效像素区域的半对角线长ImgH与光学成像镜头的有效焦距f满足:ImgH/f=0.44。The half-diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the effective focal length f of the optical imaging lens satisfy: ImgH/f=0.44.
第五透镜的像侧面的曲率半径R10与第五透镜的物侧面的曲率半径R9满足:R10/R9=-0.89。The radius of curvature R10 of the image side surface of the fifth lens and the radius of curvature R9 of the object side surface of the fifth lens satisfy: R10/R9=-0.89.
第五透镜与第六透镜在光学成像镜头的光轴上的空气间隔T56与第六透镜的中心厚度CT6满足:T56/CT6=1.14。The air gap T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens and the center thickness CT6 of the sixth lens satisfy: T56/CT6=1.14.
第三透镜的中心厚度CT3和第三透镜与第四透镜在光学成像镜头的光轴上的空气间隔T34满足:CT3/T34=0.57。The center thickness CT3 of the third lens and the air gap T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens satisfy: CT3/T34=0.57.
第四透镜的像侧面的曲率半径R8与第二透镜的像侧面的曲率半径R4满足:R8/R4=0.35。The radius of curvature R8 of the image side surface of the fourth lens and the curvature radius R4 of the image side surface of the second lens satisfy: R8/R4 = 0.35.
光学成像镜头的有效焦距f与第一透镜的物侧面的曲率半径R1满足:f/R1=3.65。The effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy: f/R1 = 3.65.
第一透镜和第二透镜的组合焦距f12与光学成像镜头的有效焦距f满足:f12/f=0.43。The combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens satisfy: f12/f=0.43.
第六透镜的像侧面的曲率半径R12与第五透镜的像侧面的曲率半径R10满足:(R12-R10)/(R12+R10)=0.24。The radius of curvature R12 of the image side surface of the sixth lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: (R12 - R10) / (R12 + R10) = 0.24.
另外,图2A示出了实施例1的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图2B示出了实施例1的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图2C示出了实施例1的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图2D示出了实施例1的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图2A至图2D可知,实施例1所给出的光学成像镜头能够实现良好的成像品质。In addition, FIG. 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after the lens. 2B shows an astigmatism curve of the optical imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature. 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which shows distortion magnitude values in the case of different viewing angles. 2D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates a deviation of different image heights on the imaging plane after the light passes through the lens. 2A to 2D, the optical imaging lens given in Embodiment 1 can achieve good imaging quality.
实施例2Example 2
以下参照图3至图4D描述根据本申请实施例2的光学成像镜头。在本实施例及以下实施例中,为简洁起见,将省略部分与实施例1相似的描述。图3示出了根据本申请实施例2的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 2 of the present application will be described below with reference to FIGS. 3 to 4D. In the present embodiment and the following embodiments, a description similar to Embodiment 1 will be omitted for the sake of brevity. FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.
如图3所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 3, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
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为凹面,像侧面S4为凸面。第三透镜E3具有正光焦度,其物侧面S5为凹面,像侧面S6为凸面。第四透镜E4具有负光焦度,其物侧面S7为凹面,像侧面S8 为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凹面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive 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 refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface. The third lens E3 has a positive refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表4示出了实施例2的光学成像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)。Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 2, wherein the units of the radius of curvature and the thickness are each mm (mm).
Figure PCTCN2018113638-appb-000004
Figure PCTCN2018113638-appb-000004
表4Table 4
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 5 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 8.4210E-038.4210E-03 6.1180E-036.1180E-03 -4.6400E-03-4.6400E-03 -7.8400E-03-7.8400E-03 2.5208E-022.5208E-02 -2.1333E-02-2.1333E-02 5.4900E-035.4900E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 1.0317E-021.0317E-02 1.1059E-011.1059E-01 -3.2659E-01-3.2659E-01 5.9819E-015.9819E-01 -6.2474E-01-6.2474E-01 3.2521E-013.2521E-01 -6.3810E-02-6.3810E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 -2.6500E-03-2.6500E-03 2.3548E-012.3548E-01 -6.1632E-01-6.1632E-01 1.0764E+001.0764E+00 -1.2085E+00-1.2085E+00 7.1996E-017.1996E-01 -1.6851E-01-1.6851E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 -1.6413E-01-1.6413E-01 9.7355E-019.7355E-01 -2.2783E+00-2.2783E+00 2.7087E+002.7087E+00 -1.7659E+00-1.7659E+00 6.1490E-016.1490E-01 -9.0450E-02-9.0450E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.9086E-01-1.9086E-01 1.2348E+001.2348E+00 -3.4268E+00-3.4268E+00 5.0226E+005.0226E+00 -4.0903E+00-4.0903E+00 1.7673E+001.7673E+00 -3.1400E-01-3.1400E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 2.6518E-022.6518E-02 4.4260E-014.4260E-01 -1.8140E+00-1.8140E+00 3.4150E+003.4150E+00 -3.4681E+00-3.4681E+00 1.7954E+001.7954E+00 -3.5773E-01-3.5773E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -3.9327E-01-3.9327E-01 1.9827E+001.9827E+00 -8.8914E+00-8.8914E+00 2.9129E+012.9129E+01 -6.8819E+01-6.8819E+01 1.1370E+021.1370E+02 -1.2502E+02-1.2502E+02 8.2162E+018.2162E+01 -2.4319E+01-2.4319E+01
S8S8 -4.9691E-01-4.9691E-01 3.5492E+003.5492E+00 -1.5192E+01-1.5192E+01 4.6594E+014.6594E+01 -1.0422E+02-1.0422E+02 1.6109E+021.6109E+02 -1.5851E+02-1.5851E+02 8.8303E+018.8303E+01 -2.1236E+01-2.1236E+01
S9S9 -4.9963E-01-4.9963E-01 1.7883E+001.7883E+00 -4.5639E+00-4.5639E+00 6.8019E+006.8019E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -2.6016E-01-2.6016E-01 7.7663E-017.7663E-01 -1.5672E+00-1.5672E+00 1.9250E+001.9250E+00 -1.3809E+00-1.3809E+00 5.0817E-015.0817E-01 -7.0140E-02-7.0140E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -1.6419E-01-1.6419E-01 2.7357E-012.7357E-01 -2.6418E-01-2.6418E-01 1.7710E-011.7710E-01 -8.2240E-02-8.2240E-02 2.5444E-022.5444E-02 -4.9400E-03-4.9400E-03 5.3500E-045.3500E-04 -2.4433E-05-2.4433E-05
S12S12 -1.7883E-01-1.7883E-01 2.2715E-012.2715E-01 -1.8801E-01-1.8801E-01 1.0848E-011.0848E-01 -4.2935E-02-4.2935E-02 1.1214E-021.1214E-02 -1.8300E-03-1.8300E-03 1.6800E-041.6800E-04 -6.6325E-06-6.6325E-06
表5table 5
表6给出实施例2中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 6 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 2, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 3.033.03 f(mm)f(mm) 5.545.54
f2(mm)F2 (mm) 17.8717.87 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) 761.15761.15 HFOV(°)HFOV(°) 23.323.3
f4(mm)F4(mm) -11.72-11.72    
f5(mm)F5 (mm) -5.79-5.79    
f6(mm)F6(mm) -6.99-6.99    
表6Table 6
图4A示出了实施例2的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图4B示出了实施例2的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图4C示出了实施例2的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图4D示出了实施例2的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图4A至图4D可知,实施例2所给出的光学成像镜头能够实现良好的成像品质。4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that light of different wavelengths is deviated from a focus point after the lens. 4B shows an astigmatism curve of the optical imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature. 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which shows distortion magnitude values in the case of different viewing angles. 4D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 4A to 4D, the optical imaging lens given in Embodiment 2 can achieve good imaging quality.
实施例3Example 3
以下参照图5至图6D描述了根据本申请实施例3的光学成像镜头。图5示出了根据本申请实施例3的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 3 of the present application is described below with reference to FIGS. 5 to 6D. FIG. 5 is a block diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application.
如图5所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 5, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
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S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凸面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, and the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表7示出了实施例3的光学成像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)。Table 7 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
Figure PCTCN2018113638-appb-000005
Figure PCTCN2018113638-appb-000005
表7Table 7
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 8 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 1.0068E-021.0068E-02 1.6743E-031.6743E-03 7.1830E-037.1830E-03 -1.1120E-02-1.1120E-02 1.2563E-021.2563E-02 -6.7495E-03-6.7495E-03 1.1450E-031.1450E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 1.6732E-021.6732E-02 4.2634E-024.2634E-02 -2.3410E-02-2.3410E-02 5.9860E-035.9860E-03 -6.9230E-02-6.9230E-02 8.3848E-028.3848E-02 -2.7000E-02-2.7000E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 5.1620E-035.1620E-03 7.6119E-027.6119E-02 -6.5400E-03-6.5400E-03 -1.0098E-01-1.0098E-01 1.1352E-021.1352E-02 8.8485E-028.8485E-02 -4.1270E-02-4.1270E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 -3.3030E-02-3.3030E-02 2.4192E-012.4192E-01 -2.6960E-01-2.6960E-01 -1.7155E-01-1.7155E-01 6.0308E-016.0308E-01 -4.6295E-01-4.6295E-01 1.1871E-011.1871E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.5688E-01-1.5688E-01 6.7216E-016.7216E-01 -1.4747E+00-1.4747E+00 1.9813E+001.9813E+00 -1.5606E+00-1.5606E+00 6.5541E-016.5541E-01 -1.1048E-01-1.1048E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 -2.3900E-02-2.3900E-02 2.4728E-012.4728E-01 -6.6946E-01-6.6946E-01 1.0580E+001.0580E+00 -8.4509E-01-8.4509E-01 2.1114E-012.1114E-01 3.8916E-023.8916E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -2.1378E-01-2.1378E-01 -2.3443E-01-2.3443E-01 2.4018E+002.4018E+00 -1.2255E+01-1.2255E+01 3.7205E+013.7205E+01 -7.1445E+01-7.1445E+01 8.6480E+018.6480E+01 -6.2321E+01-6.2321E+01 2.0657E+012.0657E+01
S8S8 -4.2858E-01-4.2858E-01 1.6076E+001.6076E+00 -5.4951E+00-5.4951E+00 1.6159E+011.6159E+01 -3.7734E+01-3.7734E+01 6.0704E+016.0704E+01 -5.9062E+01-5.9062E+01 3.0573E+013.0573E+01 -6.4984E+00-6.4984E+00
S9S9 -5.4884E-01-5.4884E-01 1.8329E+001.8329E+00 -4.5248E+00-4.5248E+00 6.8142E+006.8142E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.1177E-01-3.1177E-01 7.5634E-017.5634E-01 -1.5563E+00-1.5563E+00 1.9409E+001.9409E+00 -1.3726E+00-1.3726E+00 5.0084E-015.0084E-01 -7.2120E-02-7.2120E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -9.0620E-02-9.0620E-02 8.2700E-028.2700E-02 -7.5287E-02-7.5287E-02 5.5783E-025.5783E-02 -3.1805E-02-3.1805E-02 1.3291E-021.3291E-02 -3.6400E-03-3.6400E-03 5.6000E-045.6000E-04 -3.6000E-05-3.6000E-05
S12S12 -9.9950E-02-9.9950E-02 6.7425E-026.7425E-02 -4.7319E-02-4.7319E-02 2.3512E-022.3512E-02 -7.5190E-03-7.5190E-03 1.3800E-031.3800E-03 -1.0000E-04-1.0000E-04 -5.4000E-06-5.4000E-06 9.4900E-079.4900E-07
表8Table 8
表9给出实施例3中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 9 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 3, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.702.70 f(mm)f(mm) 5.555.55
f2(mm)F2 (mm) 12.7912.79 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -4.07-4.07 HFOV(°)HFOV(°) 23.323.3
f4(mm)F4(mm) -500.00-500.00    
f5(mm)F5 (mm) -5.17-5.17    
f6(mm)F6(mm) -39.18-39.18    
表9Table 9
图6A示出了实施例3的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图6B示出了实施例3的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图6C示出了实施例3的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图6D示出了实施例3的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图6A至图6D可知,实施例3所给出的光学成像镜头能够实现良好的成像品质。Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which shows distortion magnitude values in the case of different viewing angles. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 6A to 6D, the optical imaging lens given in Embodiment 3 can achieve good imaging quality.
实施例4Example 4
以下参照图7至图8D描述了根据本申请实施例4的光学成像镜头。图7示出了根据本申请实施例4的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 4 of the present application is described below with reference to FIGS. 7 to 8D. FIG. 7 is a block diagram showing the structure of an optical imaging lens according to Embodiment 4 of the present application.
如图7所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 7 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
第一透镜E1具有正光焦度,其物侧面S1为凸面,像侧面S2为凸面。第二透镜E2具有正光焦度,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具有正光焦度,其物侧面S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有正光焦度,其物侧面S11为凸面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface. The second lens E2 has a positive refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a positive refractive power, and the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表10示出了实施例4的光学成像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)。Table 10 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4, in which the unit of curvature radius and thickness are both millimeters (mm).
Figure PCTCN2018113638-appb-000006
Figure PCTCN2018113638-appb-000006
表10Table 10
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。在本实施例 中,第一透镜E1至第六透镜E6为非球面镜。Table 11 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 9.9030E-039.9030E-03 5.3458E-045.3458E-04 6.3330E-036.3330E-03 -8.9600E-03-8.9600E-03 9.9470E-039.9470E-03 -5.8800E-03-5.8800E-03 1.2370E-031.2370E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 4.9516E-024.9516E-02 -9.8684E-02-9.8684E-02 2.3092E-012.3092E-01 -2.9715E-01-2.9715E-01 1.9545E-011.9545E-01 -5.8610E-02-5.8610E-02 5.9680E-035.9680E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 5.7802E-025.7802E-02 -1.4130E-01-1.4130E-01 4.0511E-014.0511E-01 -6.0251E-01-6.0251E-01 4.5272E-014.5272E-01 -1.5798E-01-1.5798E-01 1.9041E-021.9041E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 -2.9000E-04-2.9000E-04 1.0920E-011.0920E-01 -1.0730E-02-1.0730E-02 -3.8714E-01-3.8714E-01 6.0441E-016.0441E-01 -3.7577E-01-3.7577E-01 8.6774E-028.6774E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.5033E-01-1.5033E-01 6.2068E-016.2068E-01 -1.2900E+00-1.2900E+00 1.6178E+001.6178E+00 -1.1874E+00-1.1874E+00 4.7065E-014.7065E-01 -7.6130E-02-7.6130E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 2.4321E-022.4321E-02 1.3052E-011.3052E-01 -2.8742E-01-2.8742E-01 -3.5410E-02-3.5410E-02 9.7438E-019.7438E-01 -1.2927E+00-1.2927E+00 5.1995E-015.1995E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.8394E-01-1.8394E-01 -6.0678E-02-6.0678E-02 1.0818E+001.0818E+00 -8.6156E+00-8.6156E+00 3.6264E+013.6264E+01 -9.8046E+01-9.8046E+01 1.6465E+021.6465E+02 -1.5319E+02-1.5319E+02 5.9273E+015.9273E+01
S8S8 -5.1829E-01-5.1829E-01 2.5529E+002.5529E+00 -9.6853E+00-9.6853E+00 2.8837E+012.8837E+01 -6.5372E+01-6.5372E+01 1.0157E+021.0157E+02 -9.6091E+01-9.6091E+01 4.8468E+014.8468E+01 -9.8916E+00-9.8916E+00
S9S9 -4.8261E-01-4.8261E-01 1.8221E+001.8221E+00 -4.5443E+00-4.5443E+00 6.8448E+006.8448E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.4950E-01-3.4950E-01 7.7841E-017.7841E-01 -1.5547E+00-1.5547E+00 1.9284E+001.9284E+00 -1.3775E+00-1.3775E+00 5.0594E-015.0594E-01 -7.0540E-02-7.0540E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -6.1180E-02-6.1180E-02 3.0886E-023.0886E-02 -2.1148E-02-2.1148E-02 1.2465E-021.2465E-02 -6.4100E-03-6.4100E-03 2.5690E-032.5690E-03 -6.6000E-04-6.6000E-04 9.0000E-059.0000E-05 -4.9000E-06-4.9000E-06
S12S12 -6.5730E-02-6.5730E-02 2.1370E-022.1370E-02 -6.2685E-03-6.2685E-03 -3.2500E-03-3.2500E-03 4.2870E-034.2870E-03 -2.0100E-03-2.0100E-03 5.0000E-045.0000E-04 -6.5000E-05-6.5000E-05 3.5200E-063.5200E-06
表11Table 11
表12给出实施例4中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 12 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 4, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.692.69 f(mm)f(mm) 5.575.57
f2(mm)F2 (mm) 13.2613.26 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -2.89-2.89 HFOV(°)HFOV(°) 23.223.2
f4(mm)F4(mm) 5.075.07    
f5(mm)F5 (mm) -3.31-3.31    
f6(mm)F6(mm) 1000.001000.00    
表12Table 12
图8A示出了实施例4的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图8B示出了实施例4的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图8C示出了实施例4的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图8D示出了实施例4的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图8A至图8D可知,实施例4所给出的光学成像镜头能够实现良好的成像品质。Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which shows distortion magnitude values in the case of different viewing angles. Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 8A to 8D, the optical imaging lens given in Embodiment 4 can achieve good imaging quality.
实施例5Example 5
以下参照图9至图10D描述了根据本申请实施例5的光学成像镜头。图9示出了根据本申请实施例5的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 5 of the present application is described below with reference to FIGS. 9 to 10D. FIG. 9 is a block diagram showing the structure of an optical imaging lens according to Embodiment 5 of the present application.
如图9所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 9, an optical imaging lens according to an exemplary embodiment of the present application includes, in order from an object side to an image side along an optical axis, a stop STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
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具有正光焦度,其物侧面S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凹面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表13示出了实施例5的光学成像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)。Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 5, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
Figure PCTCN2018113638-appb-000007
Figure PCTCN2018113638-appb-000007
Figure PCTCN2018113638-appb-000008
Figure PCTCN2018113638-appb-000008
表13Table 13
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 14 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 5, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 9.4020E-039.4020E-03 4.5930E-034.5930E-03 -4.0700E-03-4.0700E-03 1.1269E-021.1269E-02 -1.0960E-02-1.0960E-02 5.0780E-035.0780E-03 -1.0400E-03-1.0400E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 3.0138E-023.0138E-02 -1.3210E-02-1.3210E-02 7.9125E-027.9125E-02 -1.6093E-01-1.6093E-01 1.3906E-011.3906E-01 -5.3710E-02-5.3710E-02 7.7500E-037.7500E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 3.0481E-023.0481E-02 -4.5800E-03-4.5800E-03 9.0247E-029.0247E-02 -2.1026E-01-2.1026E-01 1.8495E-011.8495E-01 -6.4990E-02-6.4990E-02 5.9730E-035.9730E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 1.5883E-021.5883E-02 7.0283E-027.0283E-02 -1.8060E-02-1.8060E-02 -2.2898E-01-2.2898E-01 3.6710E-013.6710E-01 -2.3129E-01-2.3129E-01 5.4131E-025.4131E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.3124E-01-1.3124E-01 4.9071E-014.9071E-01 -9.4414E-01-9.4414E-01 1.1617E+001.1617E+00 -8.6950E-01-8.6950E-01 3.6673E-013.6673E-01 -6.5220E-02-6.5220E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 3.1729E-023.1729E-02 2.9554E-022.9554E-02 8.3222E-028.3222E-02 -5.6586E-01-5.6586E-01 1.0726E+001.0726E+00 -7.6077E-01-7.6077E-01 1.1882E-011.1882E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.7580E-01-1.7580E-01 -1.1020E-02-1.1020E-02 -5.5784E-01-5.5784E-01 4.2532E+004.2532E+00 -1.8459E+01-1.8459E+01 4.4278E+014.4278E+01 -5.9664E+01-5.9664E+01 4.3040E+014.3040E+01 -1.3643E+01-1.3643E+01
S8S8 -5.6606E-01-5.6606E-01 2.5643E+002.5643E+00 -9.6640E+00-9.6640E+00 2.9235E+012.9235E+01 -6.8797E+01-6.8797E+01 1.1360E+021.1360E+02 -1.1830E+02-1.1830E+02 6.9473E+016.9473E+01 -1.7913E+01-1.7913E+01
S9S9 -4.7506E-01-4.7506E-01 1.8300E+001.8300E+00 -4.5424E+00-4.5424E+00 6.8664E+006.8664E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.5303E-01-3.5303E-01 7.9306E-017.9306E-01 -1.5417E+00-1.5417E+00 1.9232E+001.9232E+00 -1.3840E+00-1.3840E+00 5.1417E-015.1417E-01 -7.0540E-02-7.0540E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -7.6710E-02-7.6710E-02 4.4980E-024.4980E-02 -4.6220E-02-4.6220E-02 4.1067E-024.1067E-02 -2.4770E-02-2.4770E-02 9.1530E-039.1530E-03 -1.7800E-03-1.7800E-03 1.2900E-041.2900E-04 2.6878E-062.6878E-06
S12S12 -8.5600E-02-8.5600E-02 5.4387E-025.4387E-02 -5.2700E-02-5.2700E-02 3.6411E-023.6411E-02 -1.6790E-02-1.6790E-02 5.0490E-035.0490E-03 -9.5000E-04-9.5000E-04 1.0200E-041.0200E-04 -4.7390E-06-4.7390E-06
表14Table 14
表15给出实施例5中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 15 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 5, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.712.71 f(mm)f(mm) 5.575.57
f2(mm)F2 (mm) 12.9612.96 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -2.84-2.84 HFOV(°)HFOV(°) 23.223.2
f4(mm)F4(mm) 4.494.49    
f5(mm)F5 (mm) -3.74-3.74    
f6(mm)F6(mm) -16.25-16.25    
表15Table 15
图10A示出了实施例5的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图10B示出了实施例5的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。 图10C示出了实施例5的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图10D示出了实施例5的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图10A至图10D可知,实施例5所给出的光学成像镜头能够实现良好的成像品质。Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that light of different wavelengths is deviated from a focus point after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which shows the distortion magnitude value in the case of different viewing angles. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.
实施例6Example 6
以下参照图11至图12D描述了根据本申请实施例6的光学成像镜头。图11示出了根据本申请实施例6的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 6 of the present application is described below with reference to FIGS. 11 to 12D. Fig. 11 is a view showing the configuration of an optical imaging lens according to Embodiment 6 of the present application.
如图11所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 11 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
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具有正光焦度,其物侧面S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凹面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive 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 refractive 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 refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表16示出了实施例6的光学成像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)。Table 16 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 6, wherein the units of the radius of curvature and the thickness are each mm (mm).
Figure PCTCN2018113638-appb-000009
Figure PCTCN2018113638-appb-000009
Figure PCTCN2018113638-appb-000010
Figure PCTCN2018113638-appb-000010
表16Table 16
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 17 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 6, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 9.5170E-039.5170E-03 2.4970E-032.4970E-03 1.0400E-031.0400E-03 1.7660E-031.7660E-03 -3.4100E-03-3.4100E-03 2.9552E-032.9552E-03 -1.0000E-03-1.0000E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 6.9630E-036.9630E-03 7.1614E-027.1614E-02 -8.5870E-02-8.5870E-02 6.2573E-026.2573E-02 -3.8500E-02-3.8500E-02 1.5290E-021.5290E-02 -2.4000E-03-2.4000E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 8.6900E-068.6900E-06 1.1616E-011.1616E-01 -1.0917E-01-1.0917E-01 4.6733E-024.6733E-02 -9.6500E-03-9.6500E-03 -1.0381E-02-1.0381E-02 6.1660E-036.1660E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 -1.1227E-01-1.1227E-01 5.8447E-015.8447E-01 -1.1463E+00-1.1463E+00 1.4456E+001.4456E+00 -1.2660E+00-1.2660E+00 6.5000E-016.5000E-01 -1.3812E-01-1.3812E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -2.9325E-01-2.9325E-01 1.0570E+001.0570E+00 -2.1654E+00-2.1654E+00 2.8973E+002.8973E+00 -2.4491E+00-2.4491E+00 1.1917E+001.1917E+00 -2.4787E-01-2.4787E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 9.7610E-029.7610E-02 -2.3543E-01-2.3543E-01 9.6504E-019.6504E-01 -2.4586E+00-2.4586E+00 3.6054E+003.6054E+00 -2.4975E+00-2.4975E+00 5.6466E-015.6466E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.6161E-01-1.6161E-01 9.8494E-029.8494E-02 -5.7884E-01-5.7884E-01 3.8635E+003.8635E+00 -1.9243E+01-1.9243E+01 5.2257E+015.2257E+01 -7.9940E+01-7.9940E+01 6.6204E+016.6204E+01 -2.4027E+01-2.4027E+01
S8S8 -5.0805E-01-5.0805E-01 2.6385E+002.6385E+00 -9.3890E+00-9.3890E+00 2.5516E+012.5516E+01 -5.2565E+01-5.2565E+01 7.4058E+017.4058E+01 -6.2478E+01-6.2478E+01 2.6692E+012.6692E+01 -4.1291E+00-4.1291E+00
S9S9 -4.7860E-01-4.7860E-01 1.8278E+001.8278E+00 -4.5319E+00-4.5319E+00 6.8793E+006.8793E+00 -7.3023E+00-7.3023E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.6085E-01-3.6085E-01 7.8315E-017.8315E-01 -1.5386E+00-1.5386E+00 1.9369E+001.9369E+00 -1.3714E+00-1.3714E+00 5.0136E-015.0136E-01 -7.0340E-02-7.0340E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -7.8447E-02-7.8447E-02 3.9654E-023.9654E-02 -4.8300E-02-4.8300E-02 5.7734E-025.7734E-02 -4.9848E-02-4.9848E-02 2.8420E-022.8420E-02 -9.6500E-03-9.6500E-03 1.7470E-031.7470E-03 -1.2931E-04-1.2931E-04
S12S12 -7.9571E-02-7.9571E-02 4.1483E-024.1483E-02 -3.4960E-02-3.4960E-02 2.0414E-022.0414E-02 -7.5556E-03-7.5556E-03 1.6900E-031.6900E-03 -2.0000E-04-2.0000E-04 9.1400E-069.1400E-06 1.5671E-071.5671E-07
表17Table 17
表18给出实施例6中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 18 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 6, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.772.77 f(mm)f(mm) 5.555.55
f2(mm)F2 (mm) 20.4020.40 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -3.27-3.27 HFOV(°)HFOV(°) 23.323.3
f4(mm)F4(mm) 5.485.48    
f5(mm)F5 (mm) -4.12-4.12    
f6(mm)F6(mm) -17.93-17.93    
表18Table 18
图12A示出了实施例6的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图12B示出了实施例6的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图12C示出了实施例6的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图12D示出了实施例6的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图12A至图12D可知,实施例6所给出的光学成像镜头能够实现良好的成像品质。Fig. 12A shows an axial chromatic aberration curve of the optical imaging lens of Example 6, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of Example 6, which shows meridional field curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of Embodiment 6, which shows the distortion magnitude value in the case of different viewing angles. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 6, which shows the deviation of different image heights on the imaging plane after the light passes through the lens. 12A to 12D, the optical imaging lens given in Embodiment 6 can achieve good imaging quality.
实施例7Example 7
以下参照图13至图14D描述了根据本申请实施例7的光学成像镜头。图13示出了根据本申请实施例7的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 7 of the present application is described below with reference to FIGS. 13 to 14D. Fig. 13 is a view showing the configuration of an optical imaging lens according to Embodiment 7 of the present application.
如图13所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 13 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
第一透镜E1具有正光焦度,其物侧面S1为凸面,像侧面S2为凸面。第二透镜E2具有正光焦度,其物侧面S3为凹面,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具有正光焦度,其物侧面S7为凸面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凸面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface. The second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface. The third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, and the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表13示出了实施例7的光学成像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)。Table 13 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 7, in which the unit of curvature radius and thickness are both millimeters (mm).
Figure PCTCN2018113638-appb-000011
Figure PCTCN2018113638-appb-000011
Figure PCTCN2018113638-appb-000012
Figure PCTCN2018113638-appb-000012
表19Table 19
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 20 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 7, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 8.8490E-038.8490E-03 2.2114E-032.2114E-03 3.4960E-033.4960E-03 -2.5000E-03-2.5000E-03 1.6370E-031.6370E-03 -4.1205E-04-4.1205E-04 -1.5000E-04-1.5000E-04 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 1.5913E-021.5913E-02 3.5966E-023.5966E-02 -1.5700E-03-1.5700E-03 -7.8550E-02-7.8550E-02 9.0043E-029.0043E-02 -4.0524E-02-4.0524E-02 7.0860E-037.0860E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 1.4764E-021.4764E-02 5.7351E-025.7351E-02 9.9870E-039.9870E-03 -1.8913E-01-1.8913E-01 2.3101E-012.3101E-01 -1.1331E-01-1.1331E-01 2.0884E-022.0884E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 4.2380E-034.2380E-03 1.6013E-011.6013E-01 -2.4970E-01-2.4970E-01 6.3346E-026.3346E-02 1.8155E-011.8155E-01 -1.8196E-01-1.8196E-01 5.3092E-025.3092E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.5504E-01-1.5504E-01 6.0759E-016.0759E-01 -1.2679E+00-1.2679E+00 1.6870E+001.6870E+00 -1.3515E+00-1.3515E+00 5.9098E-015.9098E-01 -1.0589E-01-1.0589E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 2.7292E-022.7292E-02 5.7506E-025.7506E-02 2.3107E-022.3107E-02 -5.7637E-01-5.7637E-01 1.4480E+001.4480E+00 -1.4440E+00-1.4440E+00 4.9921E-014.9921E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.9657E-01-1.9657E-01 1.8117E-021.8117E-02 -1.7507E-02-1.7507E-02 -1.0249E+00-1.0249E+00 5.1272E+005.1272E+00 -1.5946E+01-1.5946E+01 2.9832E+012.9832E+01 -2.8770E+01-2.8770E+01 1.0559E+011.0559E+01
S8S8 -5.3493E-01-5.3493E-01 2.4655E+002.4655E+00 -9.5027E+00-9.5027E+00 2.9109E+012.9109E+01 -6.8544E+01-6.8544E+01 1.1122E+021.1122E+02 -1.1218E+02-1.1218E+02 6.3040E+016.3040E+01 -1.5407E+01-1.5407E+01
S9S9 -4.6613E-01-4.6613E-01 1.8345E+001.8345E+00 -4.5547E+00-4.5547E+00 6.8118E+006.8118E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.2052E-01-3.2052E-01 7.7603E-017.7603E-01 -1.5485E+00-1.5485E+00 1.9306E+001.9306E+00 -1.3820E+00-1.3820E+00 5.0855E-015.0855E-01 -7.0540E-02-7.0540E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -7.6329E-02-7.6329E-02 3.9407E-023.9407E-02 -2.1809E-02-2.1809E-02 5.5040E-035.5040E-03 3.6474E-033.6474E-03 -4.1000E-03-4.1000E-03 1.7120E-031.7120E-03 -3.4000E-04-3.4000E-04 2.7300E-052.7300E-05
S12S12 -8.9034E-02-8.9034E-02 5.5610E-025.5610E-02 -4.7137E-02-4.7137E-02 3.0105E-023.0105E-02 -1.3465E-02-1.3465E-02 4.0570E-034.0570E-03 -7.8000E-04-7.8000E-04 8.6700E-058.6700E-05 -4.2000E-06-4.2000E-06
表20Table 20
表21给出实施例7中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 21 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 7, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.662.66 f(mm)f(mm) 5.575.57
f2(mm)F2 (mm) 15.0715.07 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -2.66-2.66 HFOV(°)HFOV(°) 23.223.2
f4(mm)F4(mm) 4.164.16    
f5(mm)F5 (mm) -3.77-3.77    
f6(mm)F6(mm) -16.45-16.45    
表21Table 21
图14A示出了实施例7的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图14B示出了实施例7的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图14C示出了实施例7的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图14D示出了实施例7的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图14A至图14D可知,实施例7所给出的光学成像镜头能够实现良好的成像品质。Fig. 14A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of Embodiment 7, which shows meridional field curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which shows the distortion magnitude value in the case of different viewing angles. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 14A to 14D, the optical imaging lens given in Embodiment 7 can achieve good imaging quality.
实施例8Example 8
以下参照图15至图16D描述了根据本申请实施例8的光学成像镜头。图15示出了根据本申请实施例8的光学成像镜头的结构示意图。An optical imaging lens according to Embodiment 8 of the present application is described below with reference to FIGS. 15 to 16D. Fig. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.
如图15所示,根据本申请示例性实施方式的光学成像镜头沿光轴由物侧至像侧依序包括:光阑STO、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S15。As shown in FIG. 15, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.
第一透镜E1具有正光焦度,其物侧面S1为凸面,像侧面S2为凸面。第二透镜E2具有正光焦度,其物侧面S3为凹面,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具有正光焦度,其物侧面S7为凹面,像侧面S8为凸面。第五透镜E5具有负光焦度,其物侧面S9为凹面,像侧面S10为凹面。第六透镜E6具有负光焦度,其物侧面S11为凹面,像侧面S12为凹面。滤光片E7具有物侧面S13和像侧面S14。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a convex surface. The second lens E2 has a positive refractive power, the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface. The third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a concave surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
表15示出了实施例8的光学成像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)。Table 15 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 8, wherein the units of the radius of curvature and the thickness are each mm (mm).
Figure PCTCN2018113638-appb-000013
Figure PCTCN2018113638-appb-000013
表22Table 22
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。在本实施例中,第一透镜E1至第六透镜E6为非球面镜。Table 23 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 8, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1. In the present embodiment, the first to sixth lenses E1 to E6 are aspherical mirrors.
面号Face number A4A4 A6A6 A8A8 A10A10 A12A12 A14A14 A16A16 A18A18 A20A20
S1S1 9.3810E-039.3810E-03 1.9439E-031.9439E-03 5.7830E-035.7830E-03 -7.7100E-03-7.7100E-03 7.7270E-037.7270E-03 -4.0600E-03-4.0600E-03 6.9700E-046.9700E-04 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S2S2 2.0696E-022.0696E-02 2.6044E-022.6044E-02 -5.6100E-03-5.6100E-03 -4.2030E-02-4.2030E-02 3.6003E-023.6003E-02 -5.2700E-03-5.2700E-03 -1.6200E-03-1.6200E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S3S3 1.9958E-021.9958E-02 3.9951E-023.9951E-02 1.3857E-021.3857E-02 -1.3263E-01-1.3263E-01 1.3419E-011.3419E-01 -4.6000E-02-4.6000E-02 3.0660E-033.0660E-03 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S4S4 3.3510E-033.3510E-03 1.4026E-011.4026E-01 -1.8761E-01-1.8761E-01 -3.2100E-03-3.2100E-03 1.9808E-011.9808E-01 -1.6592E-01-1.6592E-01 4.4394E-024.4394E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S5S5 -1.3713E-01-1.3713E-01 5.2391E-015.2391E-01 -1.0408E+00-1.0408E+00 1.3135E+001.3135E+00 -1.0011E+00-1.0011E+00 4.2243E-014.2243E-01 -7.3640E-02-7.3640E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S6S6 3.1378E-023.1378E-02 5.3483E-025.3483E-02 -4.2390E-02-4.2390E-02 -2.8365E-01-2.8365E-01 8.0398E-018.0398E-01 -7.3957E-01-7.3957E-01 1.9628E-011.9628E-01 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S7S7 -1.8162E-01-1.8162E-01 -2.0748E-02-2.0748E-02 -3.5540E-02-3.5540E-02 -8.2900E-03-8.2900E-03 3.1071E-013.1071E-01 -4.4886E+00-4.4886E+00 1.4526E+011.4526E+01 -1.7922E+01-1.7922E+01 7.3015E+007.3015E+00
S8S8 -5.8967E-01-5.8967E-01 2.7440E+002.7440E+00 -1.0759E+01-1.0759E+01 3.3862E+013.3862E+01 -8.1438E+01-8.1438E+01 1.3501E+021.3501E+02 -1.4014E+02-1.4014E+02 8.1756E+018.1756E+01 -2.0827E+01-2.0827E+01
S9S9 -4.6728E-01-4.6728E-01 1.8312E+001.8312E+00 -4.5509E+00-4.5509E+00 6.8311E+006.8311E+00 -7.3016E+00-7.3016E+00 6.1585E+006.1585E+00 -2.8038E+00-2.8038E+00 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S10S10 -3.4063E-01-3.4063E-01 7.8314E-017.8314E-01 -1.5460E+00-1.5460E+00 1.9282E+001.9282E+00 -1.3814E+00-1.3814E+00 5.1019E-015.1019E-01 -7.0540E-02-7.0540E-02 0.0000E+000.0000E+00 0.0000E+000.0000E+00
S11S11 -7.6469E-02-7.6469E-02 4.2766E-024.2766E-02 -3.7633E-02-3.7633E-02 2.9454E-022.9454E-02 -1.6640E-02-1.6640E-02 6.1370E-036.1370E-03 -1.3000E-03-1.3000E-03 1.3300E-041.3300E-04 -4.4000E-06-4.4000E-06
S12S12 -8.6440E-02-8.6440E-02 5.2358E-025.2358E-02 -4.5996E-02-4.5996E-02 2.9736E-022.9736E-02 -1.3150E-02-1.3150E-02 3.8440E-033.8440E-03 -7.1000E-04-7.1000E-04 7.4800E-057.4800E-05 -3.4000E-06-3.4000E-06
表23Table 23
表24给出实施例8中各透镜的有效焦距f1至f6、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头的水平视场角HFOV。Table 24 gives the effective focal lengths f1 to f6 of the lenses in Embodiment 8, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the horizontal angle of view HFOV of the optical imaging lens.
f1(mm)F1 (mm) 2.692.69 f(mm)f(mm) 5.575.57
f2(mm)F2 (mm) 13.8513.85 TTL(mm)TTL (mm) 5.405.40
f3(mm)F3 (mm) -2.82-2.82 HFOV(°)HFOV(°) 23.223.2
f4(mm)F4(mm) 4.354.35    
f5(mm)F5 (mm) -3.67-3.67    
f6(mm)F6(mm) -15.90-15.90    
表24Table 24
图16A示出了实施例8的光学成像镜头的轴上色差曲线,其表示不同波长的光线经由镜头后的会聚焦点偏离。图16B示出了实施例8的光学成像镜头的象散曲线,其表示子午像面弯曲和弧矢像面弯曲。图16C示出了实施例8的光学成像镜头的畸变曲线,其表示不同视角情况下的畸变大小值。图16D示出了实施例8的光学成像镜头的倍率色差曲线,其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图16A至图16D可知,实施例8所给出的光学成像镜头能够实现良好的成像品质。Fig. 16A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 8, which indicates that light of different wavelengths is deviated from a focus point after the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which shows distortion magnitude values in the case of different viewing angles. Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 16A to 16D, the optical imaging lens given in Embodiment 8 can achieve good imaging quality.
综上,实施例1至实施例8满足表25中所示的关系。In summary, Embodiments 1 to 8 satisfy the relationship shown in Table 25.
条件式/实施例Conditional / Example 11 22 33 44 55 66 77 88
f2/f1F2/f1 6.346.34 5.905.90 4.734.73 4.934.93 4.784.78 7.377.37 5.665.66 5.155.15
f/f1f/f1 2.112.11 1.831.83 2.052.05 2.072.07 2.052.05 2.012.01 2.092.09 2.072.07
f5/R12F5/R12 -0.59-0.59 -1.12-1.12 -0.77-0.77 -0.21-0.21 -0.27-0.27 -0.29-0.29 -0.46-0.46 -0.35-0.35
ImgH/fImgH/f 0.440.44 0.440.44 0.440.44 0.440.44 0.440.44 0.440.44 0.440.44 0.440.44
R10/R9R10/R9 -0.89-0.89 -0.07-0.07 -0.37-0.37 -0.81-0.81 -1.25-1.25 -0.74-0.74 -1.05-1.05 -1.19-1.19
T56/CT6T56/CT6 1.141.14 1.671.67 0.720.72 0.940.94 1.121.12 0.900.90 1.261.26 1.151.15
CT3/T34CT3/T34 0.570.57 0.820.82 0.540.54 0.590.59 0.670.67 0.630.63 0.670.67 0.650.65
R8/R4R8/R4 0.350.35 0.320.32 0.490.49 0.350.35 0.330.33 0.030.03 0.410.41 0.330.33
f/R1f/R1 3.653.65 3.523.52 3.803.80 3.783.78 3.763.76 3.763.76 3.693.69 3.733.73
f12/fF12/f 0.430.43 0.490.49 0.420.42 0.420.42 0.420.42 0.450.45 0.430.43 0.420.42
(R12-R10)/(R12+R10)(R12-R10)/(R12+R10) 0.240.24 0.210.21 0.270.27 0.660.66 0.500.50 0.570.57 0.320.32 0.410.41
表25Table 25
本申请还提供一种成像装置,其电子感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。成像装置可以是诸如数码相机的独立成像设备,也可以是集成在诸如手机等移动电子设备上的成像模块。该成像装置装配有以上描述的光学成像镜头。The present application also provides an image forming apparatus whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.
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。The above description is only a preferred embodiment of the present application and a description of the principles of the applied technology. It should be understood by those skilled in the art that the scope of the invention referred to in the present application is not limited to the specific combination of the above technical features, and should also be covered by the above technical features without departing from the inventive concept. Other technical solutions formed by any combination of their equivalent features. For example, the above features are combined with the technical features disclosed in the present application, but are not limited to the technical features having similar functions.

Claims (22)

  1. 光学成像镜头,所述光学成像镜头沿着光轴由物侧至像侧依序包括具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜,其特征在于:An optical imaging lens including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having powers in order from an object side to an image side along an optical axis , which is characterized by:
    所述第一透镜具有正光焦度;The first lens has a positive power;
    所述第二透镜具有正光焦度并且所述第二透镜的像侧面为凸面;The second lens has a positive power and the image side of the second lens is a convex surface;
    所述第五透镜具有负光焦度,所述第五透镜的物侧面为凹面并且所述第五透镜的像侧面为凹面;以及The fifth lens has a negative power, the object side of the fifth lens is a concave surface, and an image side of the fifth lens is a concave surface;
    所述第六透镜的像侧面为凹面,The image side of the sixth lens is concave,
    其中,所述第二透镜的有效焦距f2与所述第一透镜的有效焦距f1满足:4<f2/f1<8。Wherein, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4<f2/f1<8.
  2. 根据权利要求1所述的光学成像镜头,其特征在于,所述第一透镜的有效焦距f1与所述光学成像镜头的有效焦距f满足:1.5<f/f1<3。The optical imaging lens according to claim 1, wherein an effective focal length f1 of said first lens and an effective focal length f of said optical imaging lens satisfy: 1.5 < f/f1 < 3.
  3. 根据权利要求1所述的光学成像镜头,其特征在于,所述第五透镜的有效焦距f5与所述第六透镜的像侧面的曲率半径R12满足:-1.5<f5/R12<0。The optical imaging lens according to claim 1, wherein an effective focal length f5 of the fifth lens and a curvature radius R12 of an image side surface of the sixth lens satisfy: -1.5 < f5 / R12 < 0.
  4. 根据权利要求1所述的光学成像镜头,其特征在于,所述光学成像镜头的成像面上有效像素区域的半对角线长ImgH与所述光学成像镜头的有效焦距f满足:ImgH/f<0.5。The optical imaging lens according to claim 1, wherein a half-diagonal line length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and an effective focal length f of the optical imaging lens satisfy: ImgH/f< 0.5.
  5. 根据权利要求1所述的光学成像镜头,其特征在于,所述第五透镜的像侧面的曲率半径R10与所述第五透镜的物侧面的曲率半径R9满足:-1.5<R10/R9<0。The optical imaging lens according to claim 1, wherein a radius of curvature R10 of the image side surface of the fifth lens and a curvature radius R9 of the object side surface of the fifth lens satisfy: -1.5 < R10 / R9 < 0 .
  6. 根据权利要求1所述的光学成像镜头,其特征在于,所述第五透镜与所述第六透镜在所述光学成像镜头的光轴上的空气间隔T56与 所述第六透镜的中心厚度CT6满足:0.5<T56/CT6<2。The optical imaging lens according to claim 1, wherein an air gap T56 of said fifth lens and said sixth lens on an optical axis of said optical imaging lens and a center thickness CT6 of said sixth lens Satisfied: 0.5 < T56 / CT6 < 2.
  7. 根据权利要求1所述的光学成像镜头,其特征在于,所述第三透镜的中心厚度CT3和所述第三透镜与所述第四透镜在所述光学成像镜头的光轴上的空气间隔T34满足:0.5<CT3/T34<1。The optical imaging lens according to claim 1, wherein a center thickness CT3 of said third lens and an air gap T34 of said third lens and said fourth lens on an optical axis of said optical imaging lens Satisfied: 0.5<CT3/T34<1.
  8. 根据权利要求1所述的光学成像镜头,其特征在于,所述第四透镜的像侧面的曲率半径R8与所述第二透镜的像侧面的曲率半径R4满足:0<R8/R4<0.5。The optical imaging lens according to claim 1, wherein a radius of curvature R8 of the image side surface of the fourth lens and a curvature radius R4 of the image side surface of the second lens satisfy: 0 < R8 / R4 < 0.5.
  9. 根据权利要求1所述的光学成像镜头,其特征在于,所述光学成像镜头的有效焦距f与所述第一透镜的物侧面的曲率半径R1满足:3<f/R1<4。The optical imaging lens according to claim 1, wherein an effective focal length f of the optical imaging lens and a radius of curvature R1 of an object side surface of the first lens satisfy: 3 < f / R1 < 4.
  10. 根据权利要求1所述的光学成像镜头,其特征在于,所述第一透镜和所述第二透镜的组合焦距f12与所述光学成像镜头的有效焦距f满足:0<f12/f<0.5。The optical imaging lens according to claim 1, wherein a combined focal length f12 of the first lens and the second lens and an effective focal length f of the optical imaging lens satisfy: 0 < f12 / f < 0.5.
  11. 根据权利要求1所述的光学成像镜头,其特征在于,所述第六透镜的像侧面的曲率半径R12与所述第五透镜的像侧面的曲率半径R10满足:0<(R12-R10)/(R12+R10)<1。The optical imaging lens according to claim 1, wherein a radius of curvature R12 of the image side surface of the sixth lens and a curvature radius R10 of the image side surface of the fifth lens satisfy: 0 < (R12 - R10) / (R12+R10)<1.
  12. 光学成像镜头,所述光学成像镜头沿着光轴由物侧至像侧依序包括具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜,其特征在于:An optical imaging lens including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having powers in order from an object side to an image side along an optical axis , which is characterized by:
    所述第一透镜具有正光焦度并且所述第一透镜的物侧面为凸面;The first lens has a positive power and the object side of the first lens is a convex surface;
    所述第二透镜具有正光焦度并且所述第二透镜的像侧面为凸面;The second lens has a positive power and the image side of the second lens is a convex surface;
    所述第四透镜的像侧面为凸面;The image side of the fourth lens is a convex surface;
    所述第五透镜具有负光焦度,所述第五透镜的物侧面为凹面并且所述第五透镜的像侧面为凹面;以及The fifth lens has a negative power, the object side of the fifth lens is a concave surface, and an image side of the fifth lens is a concave surface;
    所述第六透镜的像侧面为凹面,The image side of the sixth lens is concave,
    其中,所述第一透镜的有效焦距f1与所述光学成像镜头的有效焦距f满足:1.5<f/f1<3。Wherein, the effective focal length f1 of the first lens and the effective focal length f of the optical imaging lens satisfy: 1.5<f/f1<3.
  13. 根据权利要求12所述的光学成像镜头,其特征在于,所述第二透镜的有效焦距f2与所述第一透镜的有效焦距f1满足:4<f2/f1<8。The optical imaging lens according to claim 12, wherein the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: 4 < f2 / f1 < 8.
  14. 根据权利要求12所述的光学成像镜头,其特征在于,所述第五透镜的有效焦距f5与所述第六透镜的像侧面的曲率半径R12满足:-1.5<f5/R12<0。The optical imaging lens according to claim 12, wherein the effective focal length f5 of the fifth lens and the radius of curvature R12 of the image side of the sixth lens satisfy: -1.5 < f5 / R12 < 0.
  15. 根据权利要求12所述的光学成像镜头,其特征在于,所述光学成像镜头的成像面上有效像素区域的半对角线长ImgH与所述光学成像镜头的有效焦距f满足:ImgH/f<0.5。The optical imaging lens according to claim 12, wherein a half-diagonal line length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and an effective focal length f of the optical imaging lens satisfy: ImgH/f< 0.5.
  16. 根据权利要求12所述的光学成像镜头,其特征在于,所述第五透镜的像侧面的曲率半径R10与所述第五透镜的物侧面的曲率半径R9满足:-1.5<R10/R9<0。The optical imaging lens according to claim 12, wherein a radius of curvature R10 of the image side surface of the fifth lens and a curvature radius R9 of the object side surface of the fifth lens satisfy: -1.5 < R10 / R9 < 0 .
  17. 根据权利要求12所述的光学成像镜头,其特征在于,所述第五透镜与所述第六透镜在所述光学成像镜头的光轴上的空气间隔T56与所述第六透镜的中心厚度CT6满足:0.5<T56/CT6<2。The optical imaging lens according to claim 12, wherein an air gap T56 of the fifth lens and the sixth lens on an optical axis of the optical imaging lens and a center thickness CT6 of the sixth lens Satisfied: 0.5 < T56 / CT6 < 2.
  18. 根据权利要求12所述的光学成像镜头,其特征在于,所述第三透镜的中心厚度CT3和所述第三透镜与所述第四透镜在所述光学成像镜头的光轴上的空气间隔T34满足:0.5<CT3/T34<1。The optical imaging lens according to claim 12, wherein a center thickness CT3 of said third lens and an air gap T34 of said third lens and said fourth lens on an optical axis of said optical imaging lens Satisfied: 0.5<CT3/T34<1.
  19. 根据权利要求12所述的光学成像镜头,其特征在于,所述第四透镜的像侧面的曲率半径R8与所述第二透镜的像侧面的曲率半径R4满足:0<R8/R4<0.5。The optical imaging lens according to claim 12, wherein a radius of curvature R8 of the image side surface of the fourth lens and a curvature radius R4 of the image side surface of the second lens satisfy: 0 < R8 / R4 < 0.5.
  20. 根据权利要求12所述的光学成像镜头,其特征在于,所述光学成像镜头的有效焦距f与所述第一透镜的物侧面的曲率半径R1满足:3<f/R1<4。The optical imaging lens according to claim 12, wherein the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side surface of the first lens satisfy: 3 < f / R1 < 4.
  21. 根据权利要求12所述的光学成像镜头,其特征在于,所述第一透镜和所述第二透镜的组合焦距f12与所述光学成像镜头的有效焦距f满足:0<f12/f<0.5。The optical imaging lens according to claim 12, wherein a combined focal length f12 of the first lens and the second lens and an effective focal length f of the optical imaging lens satisfy: 0 < f12 / f < 0.5.
  22. 根据权利要求12所述的光学成像镜头,其特征在于,所述第六透镜的像侧面的曲率半径R12与所述第五透镜的像侧面的曲率半径R10满足:0<(R12-R10)/(R12+R10)<1。The optical imaging lens according to claim 12, wherein a radius of curvature R12 of the image side surface of the sixth lens and a curvature radius R10 of the image side surface of the fifth lens satisfy: 0 < (R12 - R10) / (R12+R10)<1.
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