WO2019210740A1 - 光学成像镜头 - Google Patents

光学成像镜头 Download PDF

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Publication number
WO2019210740A1
WO2019210740A1 PCT/CN2019/077753 CN2019077753W WO2019210740A1 WO 2019210740 A1 WO2019210740 A1 WO 2019210740A1 CN 2019077753 W CN2019077753 W CN 2019077753W WO 2019210740 A1 WO2019210740 A1 WO 2019210740A1
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Prior art keywords
lens
optical imaging
imaging lens
object side
image side
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PCT/CN2019/077753
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English (en)
French (fr)
Inventor
李明
高雪
王彬清
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浙江舜宇光学有限公司
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Publication of WO2019210740A1 publication Critical patent/WO2019210740A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Definitions

  • the present application relates to an optical imaging lens, and more particularly to an optical imaging lens composed of six lenses.
  • the present application proposes an optical imaging system suitable for portable electronic products having characteristics of ultra-thinness, large field of view, excellent imaging quality, and low sensitivity.
  • an optical imaging lens which may include, in order from the object side to the image side along the optical axis, a first lens which may have a negative power; may have a positive power a second lens; a third lens having a positive power; a fourth lens having a negative power, a concave side of the object; a fifth lens having a positive power; and a negative power
  • the sixth lens has a convex side and a concave side, wherein the effective focal length f5 of the fifth lens and the combined focal length f23 of the second lens and the third lens satisfy:
  • the effective focal length f of the optical imaging lens, half of the maximum field of view of the optical imaging lens, HFOV, and the distance from the object side of the first lens to the distance TTL of the imaging surface on the optical axis may satisfy: 0.7 ⁇ f *tan(HFOV)/TTL ⁇ 1.0.
  • the air space T12 of the first lens and the second lens on the optical axis and the air space T23 of the second lens and the third lens on the optical axis may satisfy: T12/T23 ⁇ 1.5.
  • the Abbe number V1 of the first lens, the Abbe number V2 of the second lens, and the Abbe number V3 of the third lens may satisfy: 40 ⁇ (V1+V2+V3)/3 ⁇ 60 .
  • the effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, the effective focal length f4 of the fourth lens, and the effective focal length f6 of the sixth lens may satisfy: 1.0 ⁇
  • the effective focal length f of the optical imaging lens and the radius of curvature R5 of the object side of the third lens may satisfy: f/
  • the radius of curvature R3 of the object side surface of the second lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: -2.0 ⁇ R3 / R6 ⁇ -0.5.
  • the radius of curvature R9 of the object side surface of the fifth lens and the radius of curvature R10 of the image side surface of the fifth lens may satisfy:
  • the center thickness CT1 of the first lens, the center thickness CT2 of the second lens, and the center thickness CT3 of the third lens may satisfy: CT3/(CT1+CT2) ⁇ 1.5.
  • the center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, and the center thickness CT6 of the sixth lens may satisfy: 0.5 ⁇ CT5/(CT4+CT6) ⁇ 2.0.
  • the object side of the second lens may be convex, and the image side may be concave.
  • the image side of the fourth lens may be concave.
  • the object side of the fifth lens may be a concave surface, and the image side may be a convex surface.
  • an optical imaging lens which may include, in order from the object side to the image side along the optical axis, a first lens which may have a negative power; may have a positive light a second lens having a power; a third lens having a positive power; a fourth lens having a negative power, a concave side of the object; a fifth lens having a positive power; and a negative optical focus a sixth lens having a convex side and a concave side, wherein the air gap T12 of the first lens and the second lens on the optical axis and the air space T23 of the second lens and the third lens on the optical axis It can be satisfied: T12/T23 ⁇ 1.5.
  • an optical imaging lens which may sequentially include a first lens which may have a negative power along the optical axis from the object side to the image side; may have a positive light a second lens having a power; a third lens having a positive power; a fourth lens having a negative power, a concave side of the object; a fifth lens having a positive power; and a negative optical focus
  • the sixth lens has a convex side and a concave side, wherein the effective focal length f of the optical imaging lens and the radius of curvature R5 of the object side of the third lens satisfy: f/
  • an optical imaging lens which may sequentially include a first lens which may have a negative power along the optical axis from the object side to the image side; may have a positive light a second lens having a power; a third lens having a positive power; a fourth lens having a negative power, a concave side of the object; a fifth lens having a positive power; and a negative optical focus
  • the sixth lens has a convex surface and a concave side, wherein the curvature radius R3 of the object side surface of the second lens and the curvature radius R6 of the image side surface of the third lens satisfy: -2.0 ⁇ R3/ R6 ⁇ -0.5.
  • an optical imaging lens which may sequentially include a first lens which may have a negative power along the optical axis from the object side to the image side; may have a positive light a second lens having a power; a third lens having a positive power; a fourth lens having a negative power, a concave side of the object; a fifth lens having a positive power; and a negative optical focus
  • the sixth lens has a convex side and a concave side, wherein the center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, and the center thickness CT6 of the sixth lens satisfy: 0.5 ⁇ CT5 /(CT4+CT6) ⁇ 2.0.
  • the optical imaging lens configured as described above can have at least one advantageous effect of ultra-thinning, large field of view, miniaturization, high image quality, balance aberration, low sensitivity, and low cost.
  • FIG. 1 is a schematic structural view showing 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 showing 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 showing 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 showing 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 showing 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.
  • first, second, 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 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 paraxial region refers to a region near the optical axis. If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at least in the paraxial region; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is at least in the paraxial region. Concave.
  • the surface closest to the object in each lens is referred to as the object side, and the surface of each lens closest to the image plane is referred to as the image side.
  • the optical imaging lens has, for example, six lenses, 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 first lens may have negative power; the second lens may have positive power; the third lens may have positive power; the fourth lens may have negative power, and the object side may be The concave surface; the fifth lens may have a positive power; and the sixth lens may have a negative power, the object side may be a convex surface, and the image side may be a concave surface.
  • the object side of the second lens may be a convex surface, and the image side may be a concave surface.
  • the image side of the fourth lens may be a concave surface.
  • the object side of the fifth lens may be a concave surface, and the image side may be a convex surface.
  • the effective focal length f of the optical imaging lens, half of the maximum angle of view of the optical imaging lens, HFOV, and the distance from the object side of the first lens to the distance TTL of the imaging surface on the optical axis may satisfy: 0.7 ⁇ f*tan(HFOV)/TTL ⁇ 1.0, more specifically, 0.71 ⁇ f*tan(HFOV)/TTL ⁇ 0.92 can be further satisfied.
  • the effective focal length f5 of the fifth lens and the combined focal length f23 of the second lens and the third lens may satisfy:
  • the air interval T12 of the first lens and the second lens on the optical axis and the air interval T23 of the second lens and the third lens on the optical axis may satisfy: T12/T23 ⁇ 1.5, Specifically, 0.17 ⁇ T12 / T23 ⁇ 1.39 can be further satisfied.
  • an Abbe number V1 of the first lens, an Abbe number V2 of the second lens, and an Abbe number V3 of the third lens may satisfy: 40 ⁇ (V1+V2+V3)/3 ⁇ 60, more specifically, may further satisfy 45.27 ⁇ (V1 + V2 + V3) / 3 ⁇ 56.10.
  • the effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, the effective focal length f4 of the fourth lens, and the effective focal length f6 of the sixth lens may satisfy: 1.0 ⁇
  • the effective focal length f of the optical imaging lens and the radius of curvature R5 of the object side of the third lens may satisfy: f/
  • the radius of curvature R3 of the object side of the second lens and the radius of curvature R6 of the image side of the third lens may satisfy: -2.0 ⁇ R3/R6 ⁇ -0.5, and more specifically, may further satisfy -1.98 ⁇ R3 / R6 ⁇ -0.78.
  • the radius of curvature R9 of the object side of the fifth lens and the radius of curvature R10 of the image side of the fifth lens may satisfy:
  • ⁇ 0.41 can be further satisfied.
  • the center thickness CT1 of the first lens, the center thickness CT2 of the second lens, and the center thickness CT3 of the third lens may satisfy: CT3/(CT1+CT2) ⁇ 1.5, and more specifically, Further satisfying 0.48 ⁇ CT3 / (CT1 + CT2) ⁇ 1.41.
  • CT3/(CT1+CT2) ⁇ 1.5 and more specifically, Further satisfying 0.48 ⁇ CT3 / (CT1 + CT2) ⁇ 1.41.
  • the center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, and the center thickness CT6 of the sixth lens may satisfy: 0.5 ⁇ CT5/(CT4+CT6) ⁇ 2.0, more specifically Further satisfying 0.91 ⁇ CT5 / (CT4 + CT6) ⁇ 1.74.
  • the optical imaging lens may also be provided with an aperture STO for limiting the beam, adjusting the amount of light incident, and improving the image quality.
  • the above optical imaging lens may further include a cover glass for protecting the photosensitive element on the imaging surface.
  • At least one of the mirror faces of each lens is an aspherical mirror.
  • Aspherical lenses are characterized by a continuous change in curvature from the center of the lens to the periphery. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery, the aspherical lens has better curvature radius characteristics, has the advantages of improving distortion and improving astigmatic aberration, and can make the field of view larger and more realistic. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality. In addition, the use of aspherical lenses can also effectively reduce the number of lenses in an optical system.
  • 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.
  • optical imaging system 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.
  • the optical imaging system includes six lenses E1-E6 sequentially arranged from the object side to the imaging side along the optical axis.
  • the first lens E1 has an object side surface S1 and an image side surface S2;
  • the second lens E2 has an object side surface S3 and an image side surface S4;
  • the third lens E3 has an object side surface S5 and an image side surface S6;
  • the fourth lens E4 has an object side surface S7 and an image side surface S8;
  • the fifth lens E5 has an object side surface S9 and an image side surface S10;
  • the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the first lens E1 has a negative power
  • the second lens E2 has a positive power
  • the object side S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the third lens E3 has a positive power
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the sixth lens E6 has a negative light.
  • the power is such that the object side surface S11 is a convex surface and the image side surface S12 is a concave surface.
  • an aperture STO disposed between the second lens E2 and the third lens E3 for limiting the light beam is further included.
  • the optical imaging system according to Embodiment 1 may include a filter E7 having an object side S13 and an image side surface S14, and the filter E7 may be used to correct color deviation. 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.
  • each aspherical surface type x is defined by the following 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 above);
  • Ai is the correction coefficient of the a-th order of the aspheric surface.
  • Table 2 shows the high order term coefficients A4, A6, A8, A10, A12, A14, A16 and A18 which can be used for each of the mirror faces S1-S12 in Embodiment 1.
  • Table 3 below shows the effective focal lengths f1 to f6 of the lenses of Embodiment 1, the effective focal length f of the optical imaging lens, and a half ImgH of the diagonal length of the effective pixel area of the optical imaging lens of the optical imaging lens.
  • 0.57; the first lens E1 and the second lens E2 are on the optical axis
  • 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that the light of different wavelengths is deviated from the focus point after passing through the optical imaging 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 optical imaging lens.
  • the optical imaging lens given in Embodiment 1 can achieve good imaging quality.
  • An optical imaging lens according to Embodiment 2 of the present application is described below with reference to FIGS. 3 to 4D.
  • the optical imaging lens described in each embodiment is the same as the optical imaging lens described in Embodiment 1. For the sake of brevity, a description similar to that of Embodiment 1 will be omitted.
  • FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.
  • the optical imaging lens according to Embodiment 2 includes six lenses E1-E6 sequentially arranged from the object side to the imaging side along the optical axis.
  • the first lens E1 has an object side surface S1 and an image side surface S2; the second lens E2 has an object side surface S3 and an image side surface S4; the third lens E3 has an object side surface S5 and an image side surface S6; and the fourth lens E4 has an object side surface S7 and an image side surface S8; the fifth lens E5 has an object side surface S9 and an image side surface S10; and the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the first lens E1 has a negative power
  • the second lens E2 has a positive power
  • the object side S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the third lens E3 has a positive power
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the sixth lens E6 has a negative light.
  • the power is such that the object side surface S11 is a convex surface and the image side surface S12 is a concave surface.
  • an aperture STO disposed between the second lens E2 and the third lens E3 for limiting the light beam is further included.
  • the optical imaging system according to Embodiment 2 may include a filter E7 having an object side S13 and an image side surface S14, and the filter E7 may be used to correct color deviation. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 4 below shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 2.
  • Table 5 shows the high order term coefficients of the respective aspherical mirrors in Example 2.
  • Table 6 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 2, the effective focal length f of the optical imaging lens, and a half ImgH of the diagonal length of the effective pixel area of the optical imaging lens electronic photosensitive element.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • 4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that the light of different wavelengths is deviated from the focus point after passing through the optical imaging 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 optical imaging 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.
  • the optical imaging lens according to Embodiment 3 includes six lenses E1-E6 sequentially arranged from the object side to the imaging side along the optical axis.
  • the first lens E1 has an object side surface S1 and an image side surface S2; the second lens E2 has an object side surface S3 and an image side surface S4; the third lens E3 has an object side surface S5 and an image side surface S6; and the fourth lens E4 has an object side surface S7 and an image side surface S8; the fifth lens E5 has an object side surface S9 and an image side surface S10; and the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the first lens E1 has a negative power
  • the second lens E2 has a positive power
  • the object side S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the third lens E3 has a positive power
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the sixth lens E6 has a negative light.
  • the power is such that the object side surface S11 is a convex surface and the image side surface S12 is a concave surface.
  • an aperture STO disposed between the second lens E2 and the third lens E3 for limiting the light beam is further included.
  • the optical imaging system according to Embodiment 3 may include a filter E7 having an object side S13 and an image side surface S14, and the filter E7 may be used to correct color deviation. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 7 below shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3.
  • Table 8 shows the high order term coefficients of the respective aspherical mirrors in the third embodiment.
  • Table 9 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 3, the effective focal length f of the optical imaging lens, and half the ImgH of the diagonal length of the effective pixel area of the electronic imaging lens of the optical imaging lens.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that the light of different wavelengths is deviated from the focus point after passing through the optical imaging 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 optical imaging 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.
  • the optical imaging lens according to Embodiment 4 includes six lenses E1-E6 sequentially arranged from the object side to the imaging side along the optical axis.
  • the first lens E1 has an object side surface S1 and an image side surface S2; the second lens E2 has an object side surface S3 and an image side surface S4; the third lens E3 has an object side surface S5 and an image side surface S6; and the fourth lens E4 has an object side surface S7 and an image side surface S8; the fifth lens E5 has an object side surface S9 and an image side surface S10; and the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the first lens E1 has a negative power
  • the second lens E2 has a positive power
  • the object side S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the third lens E3 has a positive power
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the sixth lens E6 has a negative light.
  • the power is such that the object side surface S11 is a convex surface and the image side surface S12 is a concave surface.
  • an aperture STO disposed between the second lens E2 and the third lens E3 for limiting the light beam is further included.
  • the optical imaging system according to Embodiment 4 may include a filter E7 having an object side S13 and an image side surface S14, and the filter E7 may be used to correct color deviation. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 10 below shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4.
  • Table 11 shows the high order term coefficients of the respective aspherical mirrors in Example 4.
  • Table 12 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 4, the effective focal length f of the optical imaging lens, and half the ImgH of the diagonal length of the effective pixel area of the electronic imaging lens of the optical imaging lens.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that the light of different wavelengths is deviated from the focus point after passing through the optical imaging lens.
  • Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows a meridional field curvature and a 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 optical imaging 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.
  • the optical imaging lens according to Embodiment 5 includes six lenses E1-E6 sequentially arranged from the object side to the imaging side along the optical axis.
  • the first lens E1 has an object side surface S1 and an image side surface S2; the second lens E2 has an object side surface S3 and an image side surface S4; the third lens E3 has an object side surface S5 and an image side surface S6; and the fourth lens E4 has an object side surface S7 and an image side surface S8; the fifth lens E5 has an object side surface S9 and an image side surface S10; and the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the first lens E1 has a negative power
  • the second lens E2 has a positive power
  • the object side S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the third lens E3 has a positive power
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the sixth lens E6 has a negative light.
  • the power is such that the object side surface S11 is a convex surface and the image side surface S12 is a concave surface.
  • an aperture STO disposed between the second lens E2 and the third lens E3 for limiting the light beam is further included.
  • the optical imaging system according to Embodiment 5 may include a filter E7 having an object side S13 and an image side surface S14, and the filter E7 may be used to correct color deviation. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging plane S15.
  • Table 13 below shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 5.
  • Table 14 shows the high order term coefficients of the respective aspherical mirrors in Example 5.
  • Table 15 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 5, the effective focal length f of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel area of the optical imaging lens electronic light sensing element.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that the light of different wavelengths is deviated from the focus point after passing through the optical imaging 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 optical imaging lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.
  • Embodiments 1 to 5 respectively satisfy the relationships shown in Table 16 below.

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Abstract

本申请公开了一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，第五透镜的有效焦距f5与第二透镜和第三透镜的组合焦距f23之间可满足：|f5/f23|≤0.6。

Description

光学成像镜头
相关申请的交叉引用
本申请要求于2018年5月3日提交于中国国家知识产权局(CNIPA)的、专利申请号为201810414619.5的中国专利申请的优先权和权益，该专利申请通过引用整体并入本文。
技术领域
本申请涉及一种光学成像镜头，更具体地，涉及一种由六片镜片组成的光学成像镜头。
背景技术
随着智能手机的多样化发展，消费者对智能手机所携带的拍照功能的要求也越来越高，市面上大部分高端手机的拍照功能也越来越强。为了满足市场的需求，手机摄像镜头除了需要具备高像素、高分辨率、高相对亮度等特性，还要求具有较大的视场角度。
因此，本申请提出了一种具有超薄化、大视场角、优良成像品质和低敏感性等特性的、适用于便携式电子产品的光学成像系统。
发明内容
本申请提供的技术方案至少部分地解决了以上所述的技术问题。
根据本申请的一个方面，提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，第五透镜的有效焦距f5与第二透镜和第三透镜的组合焦距f23之间可满足：|f5/f23|≤0.6。
在一个实施方式中，光学成像镜头的有效焦距f、光学成像镜头的最大视场角的一半HFOV以及第一透镜的物侧面至成像面在光轴上的距离TTL之间可满足：0.7≤f*tan(HFOV)/TTL<1.0。
在一个实施方式中，第一透镜和第二透镜在光轴上的空气间隔T12与第二透镜和第三透镜在光轴上的空气间隔T23之间可满足：T12/T23<1.5。
在一个实施方式中，第一透镜的阿贝数V1、第二透镜的阿贝数V2和第三透镜的阿贝数V3之间可满足：40<(V1+V2+V3)/3<60。
在一个实施方式中，光学成像镜头的有效焦距f、第一透镜的有效焦距f1、第四透镜的有效焦距f4与第六透镜的有效焦距f6之间可满足：1.0<|f/f1|+|f/f4|+|f/f6|<2.50。
在一个实施方式中，光学成像镜头的有效焦距f与第三透镜的物侧面的曲率半径R5之 间可满足：f/|R5|<0.5。
在一个实施方式中，第二透镜的物侧面的曲率半径R3与第三透镜的像侧面的曲率半径R6之间可满足：-2.0<R3/R6<-0.5。
在一个实施方式中，第五透镜的物侧面的曲率半径R9与第五透镜的像侧面的曲率半径R10之间可满足：|(R9-R10)/(R9+R10)|<0.5。
在一个实施方式中，第一透镜的中心厚度CT1、第二透镜的中心厚度CT2和第三透镜的中心厚度CT3之间可满足：CT3/(CT1+CT2)<1.5。
在一个实施方式中，第四透镜的中心厚度CT4、第五透镜的中心厚度CT5和第六透镜的中心厚度CT6之间可满足：0.5<CT5/(CT4+CT6)<2.0。
在一个实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第四透镜的像侧面可为凹面。
在一个实施方式中，第五透镜的物侧面可为凹面，像侧面可为凸面。
根据本申请的另一方面，还提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，第一透镜和第二透镜在光轴上的空气间隔T12与第二透镜和第三透镜在光轴上的空气间隔T23之间可满足：T12/T23<1.5。
根据本申请的又一方面，还提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，光学成像镜头的有效焦距f与第三透镜的物侧面的曲率半径R5之间可满足：f/|R5|<0.5。
根据本申请的又一方面，还提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，第二透镜的物侧面的曲率半径R3与第三透镜的像侧面的曲率半径R6之间可满足：-2.0<R3/R6<-0.5。
根据本申请的又一方面，还提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序可包括可具有负光焦度的第一透镜；可具有正光焦度的第二透镜；可具有正光焦度的第三透镜；可具有负光焦度的第四透镜，其物侧面为凹面；可具有正光焦度的第五透镜；以及可具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，其中，第四透镜的中心厚度CT4、第五透镜的中心厚度CT5和第六透镜的中心厚度CT6之间可满足：0.5<CT5/(CT4+CT6)<2.0。
通过上述配置的光学成像镜头，可具有超薄化、大视场角、小型化、高成像品质、平衡像差、低敏感度、低成本等至少一个有益效果。
附图说明
通过参照以下附图所作出的详细描述，本申请的实施方式的以上及其它优点将变得显而易见，附图旨在示出本申请的示例性实施方式而非对其进行限制。在附图中：
图1为示出根据本申请实施例1的光学成像镜头的结构示意图；
图2A至图2D分别示出了实施例1的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图3为示出根据本申请实施例2的光学成像镜头的结构示意图；
图4A至图4D分别示出了实施例2的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图5为示出根据本申请实施例3的光学成像镜头的结构示意图；
图6A至图6D分别示出了实施例3的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图7为示出根据本申请实施例4的光学成像镜头的结构示意图；
图8A至图8D分别示出了实施例4的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图9为示出根据本申请实施例5的光学成像镜头的结构示意图；以及
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。
具体实施方式
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意，在本说明书中，第一、第二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。
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。
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、整体、步骤、操作、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、整体、步骤、操作、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“可以”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。
如在本文中使用的，用语“基本上”、“大约”以及类似的用语用作表近似的用语，而不用作表程度的用语，并且旨在说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。
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。
此外，近轴区域是指光轴附近的区域。若透镜表面为凸面且未界定该凸面位置时，则表示该透镜表面至少于近轴区域为凸面；若透镜表面为凹面且未界定该凹面位置时，则表示该透镜表面至少于近轴区域为凹面。在本文中，每个透镜中最靠近物体的表面称为物侧面，每个透镜中最靠近成像面的表面称为像侧面。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
以下结合具体实施例进一步描述本申请。
根据本申请示例性实施方式的光学成像镜头具有例如六个透镜，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。这六个透镜沿着光轴从物侧至像侧依序排列。
在示例性实施方式中，第一透镜可具有负光焦度；第二透镜可具有正光焦度；第三透镜可具有正光焦度；第四透镜可具有负光焦度，其物侧面可为凹面；第五透镜可具有正光焦度；以及第六透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。通过合理的控制各个透镜的正负光焦度分配，不仅可有效地平衡控制系统的低阶像差，使得光学成像镜头获得较优的成像品质，而且可实现高像素的特性。
在示例性实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在示例性实施方式中，第四透镜的像侧面可为凹面。
在示例性实施方式中，第五透镜的物侧面可为凹面，像侧面可为凸面。
通过进一步控制第二透镜、第四透镜和第五透镜的面型，可有利于保证光学成像镜头的组装稳定性，更有利于实现镜头批量化的生产。
在示例性实施方式中，光学成像镜头的有效焦距f、光学成像镜头的最大视场角的一半HFOV以及第一透镜的物侧面至成像面在光轴上的距离TTL之间可满足：0.7≤f*tan(HFOV)/TTL<1.0，更具体地，可进一步满足0.71≤f*tan(HFOV)/TTL≤0.92。通过合理的分配光学成像镜头的有效焦距、最大视场角、光学总长，可有效地压缩系统的尺寸，保证镜头紧凑的尺寸特性。
在示例性实施方式中，第五透镜的有效焦距f5与第二透镜和第三透镜的组合焦距f23 之间可满足：|f5/f23|≤0.6，更具体地，可进一步满足0.05≤|f5/f23|≤0.57。通过有效地控制第二透镜、第三透镜和第五透镜的光焦度，可有效平衡系统的象散和畸变。
在示例性实施方式中，第一透镜和第二透镜在光轴上的空气间隔T12与第二透镜和第三透镜在光轴上的空气间隔T23之间可满足：T12/T23<1.5，更具体地，可进一步满足0.17≤T12/T23≤1.39。通过合理调整第一透镜至第三透镜之间的空气间隔，有利于减缓光线偏折角度，降低系统敏感性。
在示例性实施方式中，第一透镜的阿贝数V1、第二透镜的阿贝数V2和第三透镜的阿贝数V3之间可满足：40<(V1+V2+V3)/3<60，更具体地，可进一步满足45.27≤(V1+V2+V3)/3≤56.10。通过合理配置第一透镜、第二透镜和第三透镜的阿贝数，可有效地减小光学系统的色散。
在示例性实施方式中，光学成像镜头的有效焦距f、第一透镜的有效焦距f1、第四透镜的有效焦距f4与第六透镜的有效焦距f6之间可满足：1.0<|f/f1|+|f/f4|+|f/f6|<2.50，更具体地，可进一步满足1.43≤|f/f1|+|f/f4|+|f/f6|≤2.22。通过合理分配第一透镜、第四透镜和第六透镜的光焦度，可有效平衡系统的球差、彗差、象散和畸变。
在示例性实施方式中，光学成像镜头的有效焦距f与第三透镜的物侧面的曲率半径R5之间可满足：f/|R5|<0.5，更具体地，可进一步满足0.01≤f/|R5|≤0.34。通过合理控制光学成像镜头的有效焦距与第三透镜物侧面的曲率半径，可有利于减小系统的象散和畸变。
在示例性实施方式中，第二透镜的物侧面的曲率半径R3与第三透镜的像侧面的曲率半径R6之间可满足：-2.0<R3/R6<-0.5，更具体地，可进一步满足-1.98≤R3/R6≤-0.78。通过合理分配第二透镜物侧面和第三透镜像侧面的曲率半径，能够使光学系统更好地匹配芯片的主光线角度。
在示例性实施方式中，第五透镜的物侧面的曲率半径R9与第五透镜的像侧面的曲率半径R10之间可满足：|(R9-R10)/(R9+R10)|<0.5，更具体地，可进一步满足0.03≤|(R9-R10)/(R9+R10)|≤0.41。通过合理分配第五透镜物侧面和像侧面的曲率半径，可有效改善系统的像散和彗差。
在示例性实施方式中，第一透镜的中心厚度CT1、第二透镜的中心厚度CT2和第三透镜的中心厚度CT3之间可满足：CT3/(CT1+CT2)<1.5，更具体地，可进一步满足0.48≤CT3/(CT1+CT2)≤1.41。一方面，通过合理分配第一透镜、第二透镜和第三透镜的中心厚度，可保证镜头的小型化特性；另一方面，通过对透镜中心厚度的合理分布，可使光线偏折趋于缓和，降低敏感性，同时减小系统的象散、畸变和色差。
在示例性实施方式中，第四透镜的中心厚度CT4、第五透镜的中心厚度CT5和第六透镜的中心厚度CT6之间可满足：0.5<CT5/(CT4+CT6)<2.0，更具体地，可进一步满足0.91≤CT5/(CT4+CT6)≤1.74。通过合理分配第四透镜、第五透镜和第六透镜的中心厚度和空气间隙，可有利于改善系统的象散和畸变，同时减小系统的后段尺寸。
在示例性实施方式中，光学成像镜头还可设置有用于限制光束的光圈STO，调节进光 量，提高成像品质。
可选地，上述光学成像镜头还可包括用于保护位于成像面上的感光元件的保护玻璃。
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：曲率从透镜中心到周边是连续变化的。与从透镜中心到周边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，能够使得视野变得更大而真实。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。另外，非球面透镜的使用还可有效地减少光学系统中的透镜个数。
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，可有效保证镜头的超薄化、大视场角、小型化、平衡系统像差并提高成像质量，从而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。
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，如果需要，该光学成像系统还可包括其它数量的透镜。
下面参照附图进一步描述可适用于上述实施方式的光学成像镜头的具体实施例。
实施例1
以下参照图1至图2D描述根据本申请实施例1的光学成像镜头。
图1示出了根据本申请实施例1的光学成像镜头的结构示意图。如图1所示，光学成像系统沿着光轴包括从物侧至成像侧依序排列的六个透镜E1-E6。第一透镜E1具有物侧面S1和像侧面S2；第二透镜E2具有物侧面S3和像侧面S4；第三透镜E3具有物侧面S5和像侧面S6；第四透镜E4具有物侧面S7和像侧面S8；第五透镜E5具有物侧面S9和像侧面S10；以及第六透镜E6具有物侧面S11和像侧面S12。
在该实施例中，第一透镜E1具有负光焦度；第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面；以及第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面。
在本实施例的光学成像系统中，还包括用于限制光束的、设置在第二透镜E2与第三透镜E3之间的光圈STO。根据实施例1的光学成像系统可包括具有物侧面S13和像侧面S14的滤光片E7，滤光片E7可用于校正色彩偏差。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。
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。
表1
Figure PCTCN2019077753-appb-000001
本实施例采用了六片透镜作为示例，通过合理分配各镜片的焦距与面型并选择合适的材料，保证镜头的超薄化和小型化；同时校正各类像差，降低敏感度，提高了镜头的解析度与成像品质。各非球面面型x由以下公式限定：
Figure PCTCN2019077753-appb-000002
其中，x为非球面沿光轴方向在高度为h的位置时，距非球面顶点的距离矢高；c为非球面的近轴曲率，c＝1/R(即，近轴曲率c为上表1中曲率半径R的倒数)；k为圆锥系数(在上表1中已给出)；Ai是非球面第i-th阶的修正系数。下表2示出了实施例1中可用于各镜面S1-S12的高次项系数A4、A6、A8、A10、A12、A14、A16和A18。
表2
面号 A4 A6 A8 A10 A12 A14 A16 A18
S1 8.5067E-02 -8.6943E-02 6.0211E-02 -2.8361E-02 9.0258E-03 -1.7742E-03 1.7972E-04 -6.0473E-06
S2 4.8382E-01 -1.2196E+00 2.5711E+00 -4.1862E+00 5.0019E+00 -3.9709E+00 1.8531E+00 -3.7885E-01
S3 2.0698E-01 -8.4440E-01 1.2628E+00 1.1367E-01 -3.9004E+00 6.4179E+00 -3.6446E+00 0
S4 2.0775E-02 8.6431E-02 -1.2885E+00 6.9849E+00 -2.0707E+01 2.9680E+01 -1.6657E+01 0
S5 -1.3067E-01 -2.6366E-01 -2.5598E+00 3.8175E+01 -2.5067E+02 7.3993E+02 -8.3472E+02 0
S6 -3.1537E-01 9.2123E-01 -2.4857E+00 -2.8113E+00 2.7252E+01 -5.5065E+01 3.6820E+01 0
S7 -5.3538E-01 1.7385E+00 -6.7593E+00 1.7482E+01 -2.9083E+01 2.8296E+01 -1.2279E+01 0
S8 -3.1879E-01 5.7314E-01 -1.1862E+00 1.8226E+00 -1.9012E+00 1.1968E+00 -3.2240E-01 0
S9 6.9995E-02 -6.9876E-01 2.0504E+00 -2.5376E+00 1.4395E+00 -1.7323E-01 -1.6002E-01 4.9455E-02
S10 8.7129E-03 -4.3923E-01 1.0649E+00 -1.6241E+00 1.7620E+00 -1.1246E+00 3.6809E-01 -4.7754E-02
S11 -2.7216E-01 1.7849E-01 -8.3548E-02 2.6542E-02 -5.4992E-03 7.1963E-04 -5.4481E-05 1.8232E-06
S12 -1.0335E-01 4.3470E-02 -1.0552E-02 2.6987E-04 5.7604E-04 -1.6166E-04 1.8631E-05 -8.0708E-07
下表3示出了实施例1的各透镜的有效焦距f1至f6、光学成像镜头的有效焦距f以及光学成像镜头电子光感元件有效像素区域对角线长的一半ImgH。
表3
f1(mm) -5.04 f(mm) 2.28
f2(mm) 2.87 ImgH(mm) 3.03
f3(mm) 2.57    
f4(mm) -3.72    
f5(mm) 3.11    
f6(mm) -6.33    
结合上表1、表3，在该实施例中：
光学成像镜头的有效焦距f、光学成像镜头的最大视场角的一半HFOV以及第一透镜E1的物侧面S1至成像面S15在光轴上的距离TTL之间满足f*tan(HFOV)/TTL＝0.88；第五透镜E5的有效焦距f5与第二透镜E2和第三透镜E3的组合焦距f23之间满足|f5/f23|＝0.57；第一透镜E1和第二透镜E2在光轴上的空气间隔T12与第二透镜E2和第三透镜E3在光轴上的空气间隔T23之间满足T12/T23＝0.57；第一透镜E1的阿贝数V1、第二透镜E2的阿贝数V2和第三透镜E3的阿贝数V3之间满足(V1+V2+V3)/3＝56.10；光学成像镜头的有效焦距f、第一透镜E1的有效焦距f1、第四透镜E4的有效焦距f4与第六透镜E6的有效焦距f6之间满足|f/f1|+|f/f4|+|f/f6|＝1.43；光学成像镜头的有效焦距f与第三透镜E3的物侧面S5的曲率半径R5之间满足f/|R5|＝0.34；第二透镜E2的物侧面S3的曲率半径R3与第三透镜E3的像侧面S6的曲率半径R6之间满足R3/R6＝-1.13；第五透镜E5的物侧面S9的曲率半径R9与第五透镜E5的像侧面S10的曲率半径R10之间满足|(R9-R10)/(R9+R10)|＝0.03；第一透镜E1的中心厚度CT1、第二透镜E2的中心厚度CT2和第三透镜E3的中心厚度CT3之间满足CT3/(CT1+CT2)＝0.48；以及第四透镜E4的中心厚度CT4、第五透镜E5的中心厚度CT5和第六透镜E6的中心厚度CT6之间满足：0.5<CT5/(CT4+CT6)＝0.91。
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光学成像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，其表示光线经由光学成像镜头后在成像面上的不同的像高的偏差。根据图2A至图2D可知，实施例1所给出的光学成像镜头能够实现良好的成像品质。
实施例2
以下参照图3至图4D描述了根据本申请实施例2的光学成像镜头。除了光学成像镜头的各镜片的参数之外，例如除了各镜片的曲率半径、厚度、圆锥系数、有效焦距、轴上间距、各镜面的高次项系数等之外，在本实施例2及以下各实施例中描述的光学成像镜头与实施例1中描述的光学成像镜头的布置结构相同。为简洁起见，将省略部分与实施例1相似的描述。
图3示出了根据本申请实施例2的光学成像镜头的结构示意图。如图3所示，根据实施例2的光学成像镜头沿着光轴包括从物侧至成像侧依序排列的六个透镜E1-E6。第一透镜E1具有物侧面S1和像侧面S2；第二透镜E2具有物侧面S3和像侧面S4；第三透镜E3具有物侧面S5和像侧面S6；第四透镜E4具有物侧面S7和像侧面S8；第五透镜E5具有物侧面S9和像侧面S10；以及第六透镜E6具有物侧面S11和像侧面S12。
在该实施例中，第一透镜E1具有负光焦度；第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面；以及第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面。
在本实施例的光学成像系统中，还包括用于限制光束的、设置在第二透镜E2与第三透镜E3之间的光圈STO。根据实施例2的光学成像系统可包括具有物侧面S13和像侧面S14的滤光片E7，滤光片E7可用于校正色彩偏差。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。
下表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。表5示出了实施例2中各非球面镜面的高次项系数。表6示出了实施例2的各透镜的有效焦距f1至f6、光学成像镜头的有效焦距f以及光学成像镜头电子光感元件有效像素区域对角线长的一半ImgH。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表4
Figure PCTCN2019077753-appb-000003
表5
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.4419E-01 -5.2189E-01 6.9801E-01 -7.5247E-01 5.8435E-01 -2.8844E-01 7.8506E-02 -8.5509E-03 0
S2 4.9836E-01 -1.0213E+00 1.8627E+00 -4.5126E+00 7.6088E+00 -7.2541E+00 3.6409E+00 -7.5295E-01 0
S3 -1.6317E-02 -5.4854E-01 6.6395E-01 -3.8526E+00 1.3258E+01 -1.7294E+01 7.8624E+00 0 0
S4 1.0566E-01 -5.8741E-01 2.7640E+00 -1.6291E+01 6.6167E+01 -1.2867E+02 9.2914E+01 0 0
S5 -3.9721E-02 -7.1644E-01 8.7106E+00 -8.3307E+01 4.2630E+02 -1.1629E+03 1.2674E+03 0 0
S6 -1.3094E-01 -1.2464E-01 -2.6240E+00 1.5554E+01 -4.8712E+01 7.4590E+01 -4.7986E+01 0 0
S7 -3.0912E-01 1.8997E-01 -1.2467E-01 -4.8078E-01 8.1720E-01 -2.2071E-01 -5.4701E-01 0 0
S8 -3.2934E-01 4.8095E-01 -7.0985E-01 7.4344E-01 -5.3237E-01 2.3725E-01 -4.2978E-02 0 0
S9 1.2368E-01 -2.8039E-01 2.1973E-01 3.7174E-01 -1.0938E+00 1.0903E+00 -4.8887E-01 8.2545E-02 0
S10 7.0387E-02 -4.0857E-01 7.1572E-01 -8.0760E-01 5.7274E-01 -2.2269E-01 4.1378E-02 -2.6480E-03 0
S11 -1.8842E-01 8.7512E-02 -5.1837E-02 2.5622E-02 -8.2189E-03 1.6216E-03 -1.7773E-04 8.1910E-06 0
S12 -7.9629E-02 2.2735E-02 -7.0310E-03 3.4804E-03 -1.6323E-03 4.7608E-04 -8.0727E-05 7.3407E-06 -2.7567E-07
表6
f1(mm) -5.20 f(mm) 2.16
f2(mm) 6.01 ImgH(mm) 3.03
f3(mm) 1.80    
f4(mm) -3.28    
f5(mm) 2.09    
f6(mm) -3.53    
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光学成像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，其表示光线经由光学成像镜头后在成像面上的不同的像高的偏差。根据图4A至图4D可知，实施例2所给出的光学成像镜头能够实现良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的光学成像镜头。
图5示出了根据本申请实施例3的光学成像镜头的结构示意图。如图5所示，根据实施例3的光学成像镜头沿着光轴包括从物侧至成像侧依序排列的六个透镜E1-E6。第一透镜E1具有物侧面S1和像侧面S2；第二透镜E2具有物侧面S3和像侧面S4；第三透镜E3具有物侧面S5和像侧面S6；第四透镜E4具有物侧面S7和像侧面S8；第五透镜E5具有物侧面S9和像侧面S10；以及第六透镜E6具有物侧面S11和像侧面S12。
在该实施例中，第一透镜E1具有负光焦度；第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面；以及第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹 面。
在本实施例的光学成像系统中，还包括用于限制光束的、设置在第二透镜E2与第三透镜E3之间的光圈STO。根据实施例3的光学成像系统可包括具有物侧面S13和像侧面S14的滤光片E7，滤光片E7可用于校正色彩偏差。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。
下表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。表8示出了实施例3中各非球面镜面的高次项系数。表9示出了实施例3的各透镜的有效焦距f1至f6、光学成像镜头的有效焦距f以及光学成像镜头电子光感元件有效像素区域对角线长的一半ImgH。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表7
Figure PCTCN2019077753-appb-000004
表8
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.0368E-01 -3.4703E-01 4.2309E-01 -4.1178E-01 2.8721E-01 -1.2850E-01 3.2322E-02 -3.2877E-03 0
S2 5.4275E-01 -1.1094E+00 2.2905E+00 -4.5645E+00 5.6654E+00 -3.8610E+00 1.3192E+00 -1.7199E-01 0
S3 9.9893E-02 -1.0358E+00 3.2203E+00 -1.1256E+01 2.4728E+01 -2.7032E+01 1.1515E+01 0 0
S4 7.6366E-02 -9.0036E-01 8.7815E+00 -5.7116E+01 2.1838E+02 -4.2323E+02 3.2616E+02 0 0
S5 -2.2162E-02 -2.0832E-01 2.8634E+00 -2.9855E+01 1.5982E+02 -4.4276E+02 4.9260E+02 0 0
S6 7.1169E-02 -6.4052E-01 2.4024E+00 -7.0967E+00 1.2670E+01 -1.2739E+01 4.9193E+00 0 0
S7 -2.5135E-01 -1.9726E-01 1.0585E+00 -2.3067E+00 3.0580E+00 -2.2352E+00 6.2703E-01 0 0
S8 -2.1548E-01 1.4230E-01 -3.1693E-02 -6.0695E-02 8.0897E-02 -3.8856E-02 6.4338E-03 0 0
S9 1.2651E-01 -2.4669E-01 3.3327E-01 -3.1098E-01 1.9617E-01 -7.2284E-02 1.1402E-02 -7.4274E-05 0
S10 4.6200E-02 -2.0412E-01 2.5209E-01 -1.9446E-01 8.3684E-02 -2.7305E-03 -9.5597E-03 2.0885E-03 0
S11 -1.3210E-01 -2.4654E-02 2.8020E-02 -4.0727E-03 -3.2775E-03 1.6862E-03 -3.0105E-04 1.9236E-05 0
S12 -1.3130E-01 4.3366E-02 -2.8393E-03 -4.7696E-03 2.4715E-03 -6.2917E-04 9.2196E-05 -7.4292E-06 2.5711E-07
表9
f1(mm) -7.75 f(mm) 2.17
f2(mm) 16.18 ImgH(mm) 3.03
f3(mm) 2.00    
f4(mm) -3.51    
f5(mm) 1.91    
f6(mm) -3.23    
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光学成像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，其表示光线经由光学成像镜头后在成像面上的不同的像高的偏差。根据图6A至图6D可知，实施例3所给出的光学成像镜头能够实现良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的光学成像镜头。
图7示出了根据本申请实施例4的光学成像镜头的结构示意图。如图7所示，根据实施例4的光学成像镜头沿着光轴包括从物侧至成像侧依序排列的六个透镜E1-E6。第一透镜E1具有物侧面S1和像侧面S2；第二透镜E2具有物侧面S3和像侧面S4；第三透镜E3具有物侧面S5和像侧面S6；第四透镜E4具有物侧面S7和像侧面S8；第五透镜E5具有物侧面S9和像侧面S10；以及第六透镜E6具有物侧面S11和像侧面S12。
在该实施例中，第一透镜E1具有负光焦度；第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面；以及第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面。
在本实施例的光学成像系统中，还包括用于限制光束的、设置在第二透镜E2与第三透镜E3之间的光圈STO。根据实施例4的光学成像系统可包括具有物侧面S13和像侧面S14的滤光片E7，滤光片E7可用于校正色彩偏差。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。
下表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。表11示出了实施例4中各非球面镜面的高次项系数。表12示出了实施例4的各透镜的有效焦距f1至f6、光学成像镜头的有效焦距f以及光学成像镜头电子光感元件有效像素区域对角线长的一半ImgH。其中，各非球面面型可由上述实施例1中给出的公式 (1)限定。
表10
Figure PCTCN2019077753-appb-000005
表11
面号 A4 A6 A8 A10 A12 A14 A16 A18
S1 6.0505E-02 2.6013E-02 -1.0979E-01 1.4842E-01 -1.0889E-01 4.4927E-02 -9.7099E-03 8.5733E-04
S2 1.1718E-02 2.6547E-01 -8.1390E-01 1.4418E+00 -1.5396E+00 9.5467E-01 -3.1301E-01 4.1748E-02
S3 2.5229E-01 -8.3768E-01 1.5793E+00 -2.7875E+00 2.7825E+00 -1.0796E+00 0.0000E+00  
S4 1.0590E-01 -2.1214E-01 -4.6509E-01 1.6679E+00 -8.6182E-01 0.0000E+00 0.0000E+00  
S5 -7.3990E-02 -3.6175E-01 2.4446E+00 -1.3962E+01 3.6243E+01 -4.5335E+01 2.2821E+01  
S6 -3.5004E-01 -1.1780E-01 6.2473E-01 -1.1273E+00 2.9384E-01 0.0000E+00 0.0000E+00  
S7 -3.5948E-01 3.9327E-01 -1.3898E+00 3.4970E+00 -3.8511E+00 1.9112E+00 -3.5228E-01  
S8 -2.0638E-01 2.7042E-01 -4.4976E-01 5.6676E-01 -4.3085E-01 1.8309E-01 -3.2590E-02  
S9 2.5711E-02 -1.3846E-01 5.8966E-01 -6.6991E-01 3.1709E-01 -5.5653E-02 -2.7310E-03 1.3965E-03
S10 2.1349E-01 -9.6303E-01 1.9075E+00 -2.6241E+00 2.4903E+00 -1.4242E+00 4.3330E-01 -5.3942E-02
S11 -1.0102E-01 -4.6763E-02 9.7718E-02 -5.8088E-02 1.8407E-02 -3.3223E-03 3.2146E-04 -1.2949E-05
S12 -1.3286E-01 8.3355E-02 -4.3681E-02 1.6585E-02 -4.2296E-03 6.6384E-04 -5.6929E-05 2.0254E-06
表12
f1(mm) -13.73 f(mm) 2.45
f2(mm) 5.83 ImgH(mm) 3.08
f3(mm) 2.79    
f4(mm) -5.39    
f5(mm) 1.44    
f6(mm) -1.54    
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光学成像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，其表示光线经由光学成像镜头后在成像面上的不同的像高的偏差。根据图8A至图8D可知，实施例4所给出的光学成像镜头能够实现良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的光学成像镜头。
图9示出了根据本申请实施例5的光学成像镜头的结构示意图。如图9所示，根据实施例5的光学成像镜头沿着光轴包括从物侧至成像侧依序排列的六个透镜E1-E6。第一透镜E1具有物侧面S1和像侧面S2；第二透镜E2具有物侧面S3和像侧面S4；第三透镜E3具有物侧面S5和像侧面S6；第四透镜E4具有物侧面S7和像侧面S8；第五透镜E5具有物侧面S9和像侧面S10；以及第六透镜E6具有物侧面S11和像侧面S12。
在该实施例中，第一透镜E1具有负光焦度；第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面；以及第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面。
在本实施例的光学成像系统中，还包括用于限制光束的、设置在第二透镜E2与第三透镜E3之间的光圈STO。根据实施例5的光学成像系统可包括具有物侧面S13和像侧面S14的滤光片E7，滤光片E7可用于校正色彩偏差。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。
下表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。表14示出了实施例5中各非球面镜面的高次项系数。表15示出了实施例5的各透镜的有效焦距f1至f6、光学成像镜头的有效焦距f以及光学成像镜头电子光感元件有效像素区域对角线长的一半ImgH。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表13
Figure PCTCN2019077753-appb-000006
Figure PCTCN2019077753-appb-000007
表14
面号 A4 A6 A8 A10 A12 A14 A16 A18
S1 1.5716E-01 -2.2979E-01 2.7912E-01 -2.4730E-01 1.5022E-01 -5.9073E-02 1.3552E-02 -1.3658E-03
S2 2.9534E-01 -9.9653E-01 2.5150E+00 -4.2969E+00 4.4583E+00 -2.6455E+00 7.9112E-01 -7.4412E-02
S3 4.3819E-01 -2.0016E+00 5.2346E+00 -9.3033E+00 8.6061E+00 -3.0395E+00 0.0000E+00  
S4 -5.8404E-03 -1.4571E-01 9.4316E-01 -3.0108E+00 3.5649E+00 0.0000E+00 0.0000E+00  
S5 -4.6300E-02 3.2309E-01 -6.0267E+00 5.0179E+01 -2.3592E+02 5.5222E+02 -5.1970E+02  
S6 -2.7274E-01 -5.3911E-02 -8.5559E-01 3.0252E+00 -4.4498E+00 0.0000E+00 0.0000E+00  
S7 -2.2328E-01 -3.8615E-01 8.5058E-01 -5.0139E+00 1.4680E+01 -1.8196E+01 7.8529E+00  
S8 -3.0146E-02 -1.3959E-01 2.0750E-01 -2.4990E-01 2.3380E-01 -1.5113E-01 4.5991E-02  
S9 2.5149E-01 -4.1045E-01 1.5821E+00 -2.1618E+00 6.3923E-01 1.1123E+00 -1.0757E+00 2.8698E-01
S10 1.5914E-01 -8.5599E-01 1.7789E+00 -2.4580E+00 2.2265E+00 -1.1703E+00 3.1768E-01 -3.4198E-02
S11 -2.6320E-02 -8.4891E-02 8.0136E-02 -3.7102E-02 1.0125E-02 -1.6258E-03 1.4189E-04 -5.2026E-06
S12 -6.7716E-02 5.9741E-03 8.7447E-03 -5.4614E-03 1.5793E-03 -2.6086E-04 2.3578E-05 -8.9596E-07
表15
f1(mm) -3.05 f(mm) 2.28
f2(mm) 2.55 ImgH(mm) 3.05
f3(mm) 2.82    
f4(mm) -6.17    
f5(mm) 1.78    
f6(mm) -2.55    
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光学成像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，其表示光线经由光学成像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。
综上，实施例1至实施例5分别满足以下表16所示的关系。
表16
条件式/实施例 1 2 3 4 5
f*tan(HFOV)/TTL 0.88 0.81 0.71 0.86 0.92
f5/f23 0.57 -0.05 -0.13 0.15 0.15
T12/T23 0.57 1.39 1.03 0.17 0.20
(V1+V2+V3)/3 56.10 45.27 45.27 56.10 56.10
|f/f1|+|f/f4|+|f/f6| 1.43 1.69 1.57 2.22 2.01
|f/R5| 0.34 0.07 0.01 0.08 0.05
R3/R6 -1.13 -1.93 -1.98 -0.88 -0.78
|(R9-R10)/(R9+R10)| -0.03 -0.11 -0.41 -0.18 -0.08
CT3/(CT1+CT2) 0.48 1.36 1.41 0.94 0.70
CT5/(CT4+CT6) 0.91 1.42 1.74 1.60 1.58
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (26)

  1. 光学成像镜头，其特征在于，沿着光轴由物侧至像侧依序包括：
    具有负光焦度的第一透镜；
    具有正光焦度的第二透镜；
    具有正光焦度的第三透镜；
    具有负光焦度的第四透镜，其物侧面为凹面；
    具有正光焦度的第五透镜；以及
    具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，
    其中，所述第五透镜的有效焦距f5与所述第二透镜和所述第三透镜的组合焦距f23之间满足：|f5/f23|≤0.6。
  2. 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、所述光学成像镜头的最大视场角的一半HFOV以及所述第一透镜的物侧面至成像面在所述光轴上的距离TTL之间满足：0.7≤f*tan(HFOV)/TTL<1.0。
  3. 根据权利要求1所述的光学成像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的空气间隔T12与所述第二透镜和所述第三透镜在所述光轴上的空气间隔T23之间满足：T12/T23<1.5。
  4. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第一透镜的阿贝数V1、所述第二透镜的阿贝数V2和所述第三透镜的阿贝数V3之间满足：40<(V1+V2+V3)/3<60。
  5. 根据权利要求1-3中任一项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、所述第一透镜的有效焦距f1、所述第四透镜的有效焦距f4与所述第六透镜的有效焦距f6之间满足：1.0<|f/f1|+|f/f4|+|f/f6|<2.50。
  6. 根据权利要求1-3中任一项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与所述第三透镜的物侧面的曲率半径R5之间满足：f/|R5|<0.5。
  7. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第二透镜的物侧面的曲率半径R3与所述第三透镜的像侧面的曲率半径R6之间满足：-2.0<R3/R6<-0.5。
  8. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第五透镜的像侧面的曲率半径R10之间满足：|(R9-R10)/(R9+R10)|<0.5。
  9. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第一透镜的中心厚度CT1、所述第二透镜的中心厚度CT2和所述第三透镜的中心厚度CT3之间满足：CT3/(CT1+CT2)<1.5。
  10. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第四透镜的中心厚度CT4、所述第五透镜的中心厚度CT5和所述第六透镜的中心厚度CT6之间满足： 0.5<CT5/(CT4+CT6)<2.0。
  11. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  12. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第四透镜的像侧面为凹面。
  13. 根据权利要求1-3中任一项所述的光学成像镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
  14. 光学成像镜头，其特征在于，沿着光轴由物侧至像侧依序包括：
    具有负光焦度的第一透镜；
    具有正光焦度的第二透镜；
    具有正光焦度的第三透镜；
    具有负光焦度的第四透镜，其物侧面为凹面；
    具有正光焦度的第五透镜；以及
    具有负光焦度的第六透镜，其物侧面为凸面，像侧面为凹面，
    其中，所述第一透镜和所述第二透镜在所述光轴上的空气间隔T12与所述第二透镜和所述第三透镜在所述光轴上的空气间隔T23之间满足：T12/T23<1.5。
  15. 根据权利要求14所述的光学成像镜头，其特征在于，所述光学成像镜头的有效焦距f、所述光学成像镜头的最大视场角的一半HFOV以及所述第一透镜的物侧面至成像面在所述光轴上的距离TTL之间满足：0.7≤f*tan(HFOV)/TTL<1.0。
  16. 根据权利要求15所述的光学成像镜头，其特征在于，所述第五透镜的有效焦距f5与所述第二透镜和所述第三透镜的组合焦距f23之间满足：|f5/f23|≤0.6。
  17. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第一透镜的阿贝数V1、所述第二透镜的阿贝数V2和所述第三透镜的阿贝数V3之间满足：40<(V1+V2+V3)/3<60。
  18. 根据权利要求14-16中任一项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、所述第一透镜的有效焦距f1、所述第四透镜的有效焦距f4与所述第六透镜的有效焦距f6之间满足：1.0<|f/f1|+|f/f4|+|f/f6|<2.50。
  19. 根据权利要求14-16中任一项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与所述第三透镜的物侧面的曲率半径R5之间满足：f/|R5|<0.5。
  20. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第二透镜的物侧面的曲率半径R3与所述第三透镜的像侧面的曲率半径R6之间满足：-2.0<R3/R6<-0.5。
  21. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第五透镜的像侧面的曲率半径R10之间满足：|(R9-R10)/(R9+R10)|<0.5。
  22. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第一透镜的 中心厚度CT1、所述第二透镜的中心厚度CT2和所述第三透镜的中心厚度CT3之间满足：CT3/(CT1+CT2)<1.5。
  23. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第四透镜的中心厚度CT4、所述第五透镜的中心厚度CT5和所述第六透镜的中心厚度CT6之间满足：0.5<CT5/(CT4+CT6)<2.0。
  24. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  25. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第四透镜的像侧面为凹面。
  26. 根据权利要求14-16中任一项所述的光学成像镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
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