WO2018153012A1 - 摄像镜头 - Google Patents

摄像镜头 Download PDF

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Publication number
WO2018153012A1
WO2018153012A1 PCT/CN2017/093501 CN2017093501W WO2018153012A1 WO 2018153012 A1 WO2018153012 A1 WO 2018153012A1 CN 2017093501 W CN2017093501 W CN 2017093501W WO 2018153012 A1 WO2018153012 A1 WO 2018153012A1
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WIPO (PCT)
Prior art keywords
lens
imaging
image pickup
image
shows
Prior art date
Application number
PCT/CN2017/093501
Other languages
English (en)
French (fr)
Inventor
张凯元
戴付建
Original Assignee
浙江舜宇光学有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201720164786.XU external-priority patent/CN206450894U/zh
Priority claimed from CN201710098954.4A external-priority patent/CN106646833B/zh
Application filed by 浙江舜宇光学有限公司 filed Critical 浙江舜宇光学有限公司
Priority to US15/766,507 priority Critical patent/US11054612B2/en
Publication of WO2018153012A1 publication Critical patent/WO2018153012A1/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
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only

Definitions

  • the present application relates to an imaging lens, and in particular to an imaging lens composed of six lenses.
  • the photosensitive element of a commonly used imaging lens is generally a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).
  • CCD Charge-Coupled Device
  • CMOS Complementary Metal-Oxide Semiconductor
  • the F-number of the existing lens (the focal length of the lens/the diameter of the effective aperture of the lens) is 2.0 or more, and the lens size is reduced while having good optical performance.
  • higher requirements are placed on the imaging lens, especially for insufficient light (such as rainy days, dusk, etc.), hand shake, etc., so the F number of 2.0 or above Higher order imaging requirements have not been met.
  • an image pickup lens having a total effective focal length f and an entrance pupil diameter EPD, and sequentially including a first lens, a second lens, and an order from the object side to the image side along the optical axis.
  • a three lens, a fourth lens, a fifth lens, and a sixth lens wherein the first lens has a positive power, the second lens has a negative power, the third lens has a positive power, The fourth lens has a positive power or a negative power, the fifth lens has a positive power or a negative power, and the sixth lens has a negative power.
  • the total effective focal length f and the entrance pupil diameter EPD satisfy f/EPD ⁇ 1.8.
  • the object side of the first lens may be convex; the image side of the second lens may be concave; the image side of the fourth lens may be convex; and the image side of the sixth lens is concave at the paraxial, and Has at least one inflection point.
  • the present application adopts a plurality of (for example, six) lenses, and by properly distributing the relationship between the effective focal length of the camera lens and the diameter of the entrance pupil, the system has a large aperture advantage in the process of increasing the amount of light passing through, and enhances the dark environment.
  • the imaging effect while reducing the aberration of the edge field of view.
  • an imaging lens which sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and the like from the object side to the image side along the optical axis.
  • the sixth lens is characterized in that an air gap T56 of the fifth lens and the sixth lens on the optical axis and a center thickness CT6 of the sixth lens satisfy 0.3 ⁇ T56/CT6 ⁇ 0.8.
  • the first lens has a positive power with a convex side; the second lens has a negative power, the image side is a concave surface; the third lens has a positive power; and the fourth lens has a positive power or Negative power, the image side is convex; the fifth lens has positive or negative power; and the sixth lens has negative power.
  • the air gap between the lenses can be properly distributed, and the size of the system is effectively compressed to ensure the ultra-thin characteristics of the lens.
  • the axial distance of the object side of the first lens to the imaging surface of the imaging lens The TTL and half of the diagonal length of the effective pixel area on the imaging surface of the imaging lens satisfy the TTL/ImgH ⁇ 1.6.
  • an aperture stop is disposed between the first lens and the second lens, wherein the aperture stop to the on-axis distance SL of the imaging surface of the imaging lens and the axis of the first lens object to the imaging surface of the imaging lens
  • the upper distance TTL satisfies 0.7 ⁇ SL / TTL ⁇ 0.9.
  • the effective focal length f1 of the first lens and the effective focal length f3 of the third lens may satisfy 0.2 ⁇ f1/f3 ⁇ 0.8
  • the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy ⁇ 0.2 ⁇ f3 /f4 ⁇ 2.1
  • the combined focal length of the fourth lens and the fifth lens may satisfy
  • the center thickness CT3 of the third lens, the center thickness CT5 of the fifth lens, and the center thickness CT6 of the sixth lens may satisfy 0.4 ⁇ CT3/(CT5+CT6) ⁇ 0.7.
  • the center thickness CT1 of the first lens and the center thickness CT3 of the third lens may satisfy 1.0 ⁇ CT1/CT3 ⁇ 2.0.
  • the maximum effective radius DT11 of the object side of the first lens and the maximum effective radius DT22 of the image side of the second lens satisfy 0.1 ⁇ DT11 / DT22 ⁇ 1.6.
  • the radius of curvature R1 of the object side surface of the first lens and the curvature radius R4 of the image side surface of the second lens satisfy 0 ⁇ R1/R4 ⁇ 1.5.
  • the radius of curvature R12 of the image side surface of the sixth lens satisfies 2.5 ⁇ f / R12 ⁇ 4.0.
  • the camera configured as described above, it is further possible to further have at least one advantageous effect of effectively balancing the spherical aberration, making the optical system have a good flat field curvature ability, and having a good ability to eliminate distortion.
  • FIG. 1 is a schematic structural view showing an image pickup lens according to Embodiment 1 of the present application.
  • FIG. 2A shows an axial chromatic aberration curve of the imaging lens of Embodiment 1;
  • 2D shows a magnification chromatic aberration curve of the imaging lens of Embodiment 1;
  • FIG. 3 is a schematic structural view showing an image pickup lens according to Embodiment 2 of the present application.
  • 4D shows a magnification chromatic aberration curve of the imaging lens of Embodiment 2;
  • FIG. 5 is a schematic structural view showing an image pickup lens according to Embodiment 3 of the present application.
  • 6A shows an axial chromatic aberration curve of the imaging lens of Embodiment 3.
  • 6B shows an astigmatism curve of the imaging lens of Embodiment 3.
  • 6C shows a distortion curve of the imaging lens of Embodiment 3.
  • 6D shows a magnification chromatic aberration curve of the imaging lens of Embodiment 3.
  • FIG. 7 is a schematic structural view showing an image pickup lens according to Embodiment 4 of the present application.
  • 8C is a view showing a distortion curve of the image pickup lens of Embodiment 4.
  • FIG. 9 is a schematic structural view showing an image pickup lens according to Embodiment 5 of the present application.
  • FIG. 10A is a view showing an axial chromatic aberration curve of the imaging lens of Embodiment 5; FIG.
  • FIG. 10B shows an astigmatism curve of the image pickup lens of Embodiment 5;
  • FIG. 10C is a view showing a distortion curve of the image pickup lens of Embodiment 5.
  • FIG. 10D is a graph showing a magnification chromatic aberration curve of the image pickup lens of Embodiment 5; FIG.
  • FIG. 11 is a schematic structural view showing an image pickup lens according to Embodiment 6 of the present application.
  • FIG. 12A is a view showing an axial chromatic aberration curve of the image pickup lens of Embodiment 6; FIG.
  • FIG. 13 is a schematic structural view showing an image pickup lens according to Embodiment 7 of the present application.
  • FIG. 15 is a schematic structural view showing an image pickup lens according to Embodiment 8 of the present application.
  • 16A shows an axial chromatic aberration curve of the image pickup lens of Embodiment 8.
  • 16B shows an astigmatism curve of the image pickup lens of Embodiment 8.
  • 16C shows a distortion curve of the image pickup lens of Embodiment 8.
  • 16D shows a magnification chromatic aberration curve of the image pickup lens of Embodiment 8.
  • FIG. 17 is a schematic structural view showing an image pickup lens according to Embodiment 9 of the present application.
  • FIG. 19 is a schematic structural view showing an image pickup lens according to Embodiment 10 of the present application.
  • FIG. 21 is a schematic structural view showing an image pickup lens according to Embodiment 11 of the present application.
  • 22B shows an astigmatism curve of the imaging lens of Embodiment 11;
  • FIG. 23 is a schematic structural view showing an image pickup lens according to Embodiment 12 of the present application.
  • 24A shows an axial chromatic aberration curve of the imaging lens of Embodiment 12
  • 24B shows an astigmatism curve of the image pickup lens of Embodiment 12
  • Fig. 24D shows a magnification chromatic aberration curve of the image pickup lens of Example 12.
  • first, second, etc. may be used herein to describe various elements, components, regions, layers and/or segments, these elements, components, regions, layers and/or segments should not be These terms are limited. These terms are only used to distinguish one element, component, region, layer or layer from another element, component, region, layer or layer. Thus, a first element, a first component, a first region, a first layer, or a first segment discussed below could be termed a second component, a second component, or a second, without departing from the teachings of the present application. Zone, second or second segment.
  • 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 image pickup lens according to an exemplary embodiment of the present application 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. These six lenses are arranged in order from the object side to the image side along the optical axis.
  • the first lens has a positive power and the object side is a convex surface.
  • the second lens has a negative power and its image side is concave.
  • the third lens has a positive power; the fourth lens has a positive power or a negative power, and the image side is a convex surface.
  • the fifth lens has a positive power or a negative power.
  • the sixth lens has a negative power and its image side is concave at the paraxial shape and has at least one inflection point, that is, the lens has a change from concave to convex or concave to concave from the center to the edge. trend.
  • the total effective focal length f and the entrance pupil diameter EPD of the above-described image pickup lens according to the exemplary embodiment of the present application may satisfy f/EPD ⁇ 1.8, for example, 1.69 ⁇ f / EPD ⁇ 1.8.
  • This can make the system have a large aperture advantage in increasing the amount of light passing through, thereby enhancing the imaging effect in a dark environment while reducing the aberration of the edge field of view.
  • the on-axis distance TTL of the object side of the first lens to the imaging surface of the imaging lens is half the length ImgH of the diagonal of the effective pixel area on the imaging surface of the imaging lens, which can satisfy TTL/ImgH ⁇ 1.6, for example, 1.53 ⁇ TTL/ImgH ⁇ 1.6. This effectively compresses the overall size of the camera lens, thereby ensuring the ultra-thin characteristics and miniaturization of the camera lens.
  • an aperture stop may be disposed between the first lens and the second lens.
  • the axial distance SL from the aperture stop to the imaging plane of the imaging lens and the axial distance TTL of the object side of the first lens to the imaging surface of the imaging lens can satisfy 0.7 ⁇ SL / TTL ⁇ 0.9, for example, 0.76 ⁇ SL / TTL ⁇ 0.86.
  • the aperture stop is disposed between the first lens and the second lens as a design variable, which can effectively increase the system aberration resistance.
  • the maximum effective radius DT11 of the object side of the first lens and the maximum effective radius DT22 of the image side of the second lens may satisfy 0.1 ⁇ DT11 / DT22 ⁇ 1.6, for example, DT11 and DT22 may further satisfy 1.19 ⁇ DT11 / DT22 ⁇ 1.51.
  • the pass light restricts the caliber of the first lens and the second lens, so that the front port diameter of the optical system is small, thereby effectively reducing the front of the module End opening.
  • the radius of curvature R1 of the object side surface of the first lens and the curvature radius R4 of the image side surface of the second lens may satisfy 0 ⁇ R1/R4 ⁇ 1.5, and for example, R1 and R4 may further satisfy 0.49 ⁇ R1/R4 ⁇ 1.08.
  • the first lens and the second lens are designed as a light group by appropriately arranging the radius of curvature R1 of the object side surface of the first lens and the curvature radius R4 of the image side surface of the second lens, thereby effectively increasing the system astigmatism. ability.
  • the effective focal length f1 of the first lens and the effective focal length f3 of the third lens may satisfy 0.2 ⁇ f1/f3 ⁇ 0.8.
  • f1 and f3 may further satisfy 0.32 ⁇ f1/f3 ⁇ 0.65.
  • the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy -0.2 ⁇ f3 / f4 ⁇ 2.1, for example, f3 and f4 may further satisfy -0.13 ⁇ f3 / f4 ⁇ 2.02.
  • spherical aberration is one of the most important factors limiting lens resolution. In the present application, by introducing a negative lens of reasonable power, the spherical aberration can be effectively balanced, thereby effectively improving imaging. quality.
  • the combined effective focal length f of the imaging lens and the combined focal length f45 of the fourth lens and the fifth lens may satisfy
  • the thickness of each lens can be optimized.
  • the center thickness CT1 of the first lens and the center thickness CT3 of the third lens may satisfy 1.0 ⁇ CT1/CT3 ⁇ 2.0, for example, 1.07 ⁇ CT1/CT3 ⁇ 1.99.
  • the imaging lens can have better ability to eliminate distortion while ensuring miniaturization.
  • the center thickness CT3 of the third lens, the center thickness CT5 of the fifth lens, and the center thickness CT6 of the sixth lens may satisfy 0.4 ⁇ CT3/(CT5+CT6) ⁇ 0.7, for example, 0.46 ⁇ CT3/(CT5+CT6 ) ⁇ 0.68.
  • the camera lens can have a better ability to eliminate distortion.
  • the air separation distance between the lenses on the optical axis can be optimized.
  • the thickness CT6 can satisfy 0.3 ⁇ T56 / CT6 ⁇ 0.8, for example, 0.35 ⁇ T56 / CT6 ⁇ 0.75.
  • the total effective focal length f of the imaging lens and the radius of curvature R12 of the image side of the sixth lens may satisfy 2.5 ⁇ f/R12 ⁇ 4.0, for example, f and R12 may further satisfy 2.55 ⁇ f/R12 ⁇ 3.66.
  • the image pickup lens according to the above embodiment of the present application may employ a plurality of lenses, such as the six sheets described above.
  • the viewing angle of the imaging lens can be effectively increased, the lens can be miniaturized and the imaging quality can be improved, thereby making the imaging lens more favorable for production and processing. And it can be applied to portable electronic products.
  • 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.
  • the aspherical lens Unlike a spherical lens having a certain curvature from the center of the lens to the periphery, the aspherical lens has a better curvature radius characteristic, 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.
  • the number of components of the lens can be varied to achieve the various results and advantages described below without departing from the technical solutions claimed herein.
  • the image pickup lens is not limited to including six lenses.
  • the camera lens can also include other numbers of lenses if desired.
  • FIGS. 1 through 24D A specific embodiment of the imaging lens applicable to the above embodiment will be further described below with reference to FIGS. 1 through 24D.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the image pickup lens of Example 1, wherein the unit of the radius of curvature and the thickness are each mm (mm).
  • each aspherical surface type x is defined by the following formula:
  • c is the paraxial curvature of the aspherical surface, which is the reciprocal of the radius of curvature in Table 1
  • h is the height of any point on the aspherical surface from the main optical axis
  • k is the conic coefficient
  • Ai is the correction of the a-th order of the aspheric surface. coefficient.
  • Table 2 shows the high order term coefficients 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 of the mirror faces S1 - S12 in Embodiment 1.
  • Table 3 shown below gives the effective focal lengths f1 to f6 of the lenses of Embodiment 1, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • the combined effective focal length f of the imaging lens and the combined focal length of the fourth lens E4 and the fifth lens E5 satisfy
  • 0.1.
  • 2A shows an axial chromatic aberration curve of the imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after passing through the lens.
  • 2B shows an astigmatism curve of the imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature.
  • 2C shows a distortion curve of the 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 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 imaging lens given in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a block diagram showing the structure of an image pickup lens according to Embodiment 2 of the present application.
  • the imaging lens 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 camera lens may further include an object side S13 and an image side S14 and is used for filtering Infrared light filter E7.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup 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 term coefficients of the respective mirror faces in Example 2.
  • Table 6 shows the effective focal lengths f1 to f6 of the respective lenses of Embodiment 2, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • 4A is a view showing an axial chromatic aberration curve of the image pickup lens of Embodiment 2, which shows that light rays of different wavelengths are deviated from a focus point after passing through the lens.
  • 4B shows an astigmatism curve of the imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature.
  • 4C shows a distortion curve of the 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 imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the imaging lens given in Embodiment 2 achieves good imaging quality.
  • FIG. 5 is a block diagram showing the structure of an image pickup lens according to Embodiment 3 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 7 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 3, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 8 shows the high order term coefficients of the respective mirror faces in Example 3.
  • Table 9 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 3, the total effective focal length f of the imaging lens, and the image pickup lens.
  • Half field of view angle HFOV can be defined by the formula 1) given in the above embodiment.
  • FIG. 6A shows an axial chromatic aberration curve of the imaging lens of Embodiment 3, which shows that The wavelength of light is deflected by the focus point behind the lens.
  • Fig. 6B shows an astigmatism curve of the image pickup lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 6C shows a distortion curve of the image pickup lens of Embodiment 3, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 6D shows a magnification chromatic aberration curve of the image pickup lens of Embodiment 3, which shows deviations of different image heights on the image plane after the light passes through the lens. 6A to 6D, the imaging lens given in Embodiment 3 achieves good imaging quality.
  • FIG. 7 is a block diagram showing the structure of an image pickup lens according to Embodiment 4 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 10 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 4, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 11 shows the high order term coefficients of the respective mirror faces in Example 4.
  • Table 12 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 4, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 8A shows an axial chromatic aberration curve of the imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 8B shows an astigmatism curve of the image pickup lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 8C shows a distortion curve of the image pickup lens of Embodiment 4, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 8D shows a magnification chromatic aberration curve of the 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 imaging lens given in Embodiment 4 achieves good imaging quality.
  • FIG. 9 is a block diagram showing the structure of an image pickup lens according to Embodiment 5 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 5, wherein the unit of the radius of curvature and the thickness are each mm (mm).
  • Table 14 shows the high order term coefficients of the respective mirror faces in Example 5.
  • Table 15 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 5, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 10A shows an axial chromatic aberration curve of the image pickup 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 imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 10C shows a distortion curve of the image pickup 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 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 imaging lens given in Embodiment 5 achieves good imaging quality.
  • FIG. 11 is a block diagram showing the structure of an image pickup lens according to Embodiment 6 of the present application.
  • the imaging lens 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 The surface S9 and the image side surface S10; and the sixth lens E6 have an object side surface S11 and an image side surface S12.
  • the image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 16 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup 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 term coefficients of the respective mirror faces in Example 6.
  • Table 18 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 6, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 12A is a view showing an axial chromatic aberration curve of the image pickup lens of Embodiment 6, which shows that light rays of different wavelengths are deviated from a focus point after passing through the lens.
  • Fig. 12B shows an astigmatism curve of the image pickup lens of Embodiment 6, which shows the meridional field curvature and the sagittal image plane curvature.
  • Fig. 12C shows a distortion curve of the image pickup 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 image pickup lens of Example 6, which shows the deviation of the different image heights on the image plane after the light passes through the lens. 12A to 12D, the imaging lens given in Embodiment 6 achieves good imaging quality.
  • FIG. 13 is a block diagram showing the structure of an image pickup lens according to Embodiment 7 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 19 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the image pickup lens of Example 7, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 20 shows the high order term coefficients of the respective mirror faces in Example 7.
  • Table 21 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 7, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 14A shows an axial chromatic aberration curve of the image pickup lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 14B shows an astigmatism curve of the image pickup lens of Embodiment 7, which shows the meridional field curvature and the sagittal image plane curvature.
  • Fig. 14C shows a distortion curve of the image pickup 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 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 imaging lens given in Embodiment 7 achieves good imaging quality.
  • FIG. 15 is a view showing the configuration of an image pickup lens according to Embodiment 8 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 22 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 8, wherein the unit of the radius of curvature and the thickness are each mm (mm).
  • Table 23 shows the high order term coefficients of the respective mirror faces in Example 8.
  • Table 24 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 8, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 16A shows an axial chromatic aberration curve of the image pickup lens of Example 8, which shows that light rays of different wavelengths are deviated from the focus point after passing through the lens.
  • Fig. 16B shows an astigmatism curve of the image pickup lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 16C shows a distortion curve of the image pickup lens of Embodiment 8, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 16D shows a magnification chromatic aberration curve of the image pickup lens of Example 8, which shows the deviation of the different image heights on the image plane after the light rays pass through the image pickup lens.
  • the imaging lens given in Embodiment 8 achieves good image quality.
  • FIG. 17 is a view showing the configuration of an image pickup lens according to Embodiment 9 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 25 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 9, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 26 shows the high order term coefficients of the respective mirror faces in Example 9.
  • Table 27 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 9, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 18A shows an axial chromatic aberration curve of the image pickup lens of Example 9, which shows that light rays of different wavelengths are deviated from the focus point after passing through the lens.
  • Fig. 18B shows an astigmatism curve of the image pickup lens of Embodiment 9, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 18C shows a distortion curve of the image pickup lens of Embodiment 9, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 18D shows a magnification chromatic aberration curve of the image pickup lens of Example 9, which shows the deviation of the different image heights on the image plane after the light passes through the lens.
  • the imaging lens given in Embodiment 9 achieves good image quality.
  • FIG. 19 is a block diagram showing the structure of an image pickup lens according to Embodiment 10 of the present application.
  • the imaging lens 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 S1 and an image side S2;
  • the second lens E2 has an object side S3 and an image side S4;
  • the third lens E3 has an object side S5 and an image side S6;
  • the fourth lens E4 has an object side S7 and an image side S8;
  • the fifth lens E5 has an object side S9 and an image side S10;
  • the sixth lens E6 has an object side surface S11 and an image side surface S12.
  • the image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 28 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 10, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 29 shows the high order term coefficients of the respective mirror faces in Example 10.
  • Table 30 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 10, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 20A shows an axial chromatic aberration curve of the optical imaging system of Embodiment 10, which shows that the light of different wavelengths is deviated from the focus point after passing through the optical system.
  • Fig. 20B shows an astigmatism curve of the optical imaging system of Embodiment 10, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 20C shows a distortion curve of the optical imaging system of Embodiment 10, which shows distortion magnitude values in the case of different viewing angles.
  • Figure 20D shows a rate chromatic aberration curve for the optical imaging system of Example 10, which shows the deviation of the different image heights on the imaging surface after the light passes through the optical imaging system.
  • the optical imaging system given in Embodiment 10 achieves good image quality.
  • FIG. 21 is a block diagram showing the structure of an image pickup lens according to Embodiment 11 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the surfaces S1 to S14 and finally images On the imaging surface S15.
  • Table 31 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 11, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 32 shows the high order term coefficients of the respective mirror faces in Example 11.
  • Table 33 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 11, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 22A shows an axial chromatic aberration curve of the image pickup lens of Example 11, which shows that light rays of different wavelengths are deviated from the focus point after passing through the lens.
  • Fig. 22B shows an astigmatism curve of the image pickup lens of Example 11, which shows the meridional field curvature and the sagittal image plane curvature.
  • Fig. 22C shows a distortion curve of the image pickup lens of Embodiment 11, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 22D shows a magnification chromatic aberration curve of the image pickup lens of Example 11, which shows the deviation of the different image heights on the image plane after the light passes through the lens. 22A to 22D, the imaging lens given in Embodiment 11 achieves good image quality.
  • FIG. 23 is a block diagram showing the structure of an image pickup lens according to Embodiment 12 of the present application.
  • the imaging lens 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 image pickup lens may further include a color filter E7 having an object side surface S13 and an image side surface S14 for filtering out infrared light.
  • an aperture STO may be provided to mediate the amount of light entering. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 34 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the image pickup lens of Example 12, in which the unit of the radius of curvature and the thickness are each mm (mm).
  • Table 35 shows the high order term coefficients of the respective mirror faces in Example 12.
  • Table 36 shows the effective focal lengths f1 to f6 of the lenses of Embodiment 12, the total effective focal length f of the imaging lens, and the half angle of view HFOV of the imaging lens.
  • each aspherical surface type can be defined by the formula 1) given in the above embodiment.
  • Fig. 24A shows an axial chromatic aberration curve of the image pickup lens of Example 12, which shows that light rays of different wavelengths are deviated from the focus point after passing through the lens.
  • Fig. 24B shows an astigmatism curve of the image pickup lens of Example 12, which shows meridional field curvature and sagittal image plane curvature.
  • Figure 24C A distortion curve of the imaging lens of Embodiment 12 is shown, which represents a distortion magnitude value in the case of different viewing angles.
  • Fig. 24D shows a magnification chromatic aberration curve of the image pickup lens of Example 12, which shows the deviation of the different image heights on the image plane after the light passes through the lens.
  • the imaging lens given in Embodiment 12 achieves good imaging quality.
  • Embodiments 1 to 12 respectively satisfy the relationships shown in Table 37 below.
  • the present application also provides an image pickup device whose photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the camera device may be an independent camera device such as a digital camera, or may be a camera module integrated on a mobile electronic device such as a mobile phone.
  • the image pickup apparatus is equipped with the image pickup lens described above.

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Abstract

摄像镜头，具有总有效焦距f以及入瞳直径EPD，并沿着光轴由物侧至像侧依序包括第一透镜(E1)、第二透镜(E2)、第三透镜(E3)、第四透镜(E4)、第五透镜(E5)和第六透镜(E6)，其特征在于，所述第一透镜(E1)具有正光焦度、所述第二透镜(E2)具有负光焦度、所述第三透镜(E3)具有正光焦度、所述第四透镜(E4)具有正光焦度或负光焦度、所述第五透镜(E5)具有正光焦度或负光焦度、所述第六透镜(E6)具有负光焦度。此外，所述总有效焦距f与所述入瞳直径EPD满足f/EPD≤1.8。

Description

摄像镜头
相关申请的交叉引用
本申请要求于2017年2月23日提交于中国国家知识产权局(SIPO)的、专利申请号为201710098954.4的中国专利申请以及于2017年2月23日提交至SIPO的、专利申请号为201720164786.X的中国专利申请的优先权和权益，以上中国专利申请通过引用整体并入本文。
技术领域
本申请涉及一种摄像镜头，具体涉及一种由六片镜片组成的摄像镜头。
背景技术
近年来，随着科技的发展，便携式电子产品逐步兴起，具有摄像功能的便携式电子产品得到人们更多的青睐，因此市场对适用于便携式电子产品的摄像镜头的需求逐渐增大。由于便携式电子产品趋于小型化，限制了镜头的总长，从而增加了镜头的设计难度。目前常用的摄像镜头的感光元件一般为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)。随着CCD与COMS元件性能的提高及尺寸的减小，对于相配套的摄像镜头的高成像品质及小型化提出了更高的要求。
为了满足小型化的要求，现有镜头通常配置的F数(镜头的焦距/镜头的有效口径的直径)均在2.0或2.0以上，实现镜头尺寸减小的同时具有良好的光学性能。但是随着智能手机等便携式电子产品的不断发展，对成像镜头提出了更高的要求，特别是针对光线不足(如阴雨天、黄昏等)、手抖等情况，故此2.0或2.0以上的F数已经无法满足更高阶的成像要求。
因此，需要一种可适用于便携式电子产品的具有超薄大孔径、优 良成像品质和低敏感度的摄像镜头。
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给出了这样一种摄像镜头，其具有总有效焦距f以及入瞳直径EPD，并沿着光轴由物侧至像侧依序包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，所述第一透镜具有正光焦度、所述第二透镜具有负光焦度、所述第三透镜具有正光焦度、所述第四透镜具有正光焦度或负光焦度、所述第五透镜具有正光焦度或负光焦度、所述第六透镜具有负光焦度。此外，总有效焦距f与入瞳直径EPD满足f/EPD≤1.8。
在一个示例中，第一透镜的物侧面可为凸面；第二透镜的像侧面可为凹面；第四透镜的像侧面可为凸面；以及第六透镜的像侧面在近轴处为凹面，且具有至少一个反曲点。
本申请采用了多片(例如，六片)镜片，通过合理分配摄像镜头的有效焦距与入瞳直径之间的关系，在加大通光量的过程中，使系统具有大光圈优势，增强暗环境下的成像效果；同时减小边缘视场的像差。
根据本申请的另一个方面给出了这样一种摄像镜头，其沿着光轴由物侧至像侧依序包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，所述第五透镜和所述第六透镜在所述光轴上的空气间隔T56与所述第六透镜的中心厚度CT6满足0.3≤T56/CT6≤0.8。在一个示例中，第一透镜具有正光焦度，其物侧面为凸面；第二透镜具有负光焦度，其像侧面为凹面；第三透镜具有正光焦度；第四透镜具有正光焦度或负光焦度，其像侧面为凸面；第五透镜具有正光焦度或负光焦度；以及第六透镜具有负光焦度。
根据上述的摄像镜头排置可通过合理的分布透镜之间的空气间隔，有效地压缩了系统的尺寸，保证镜头的超薄特性。
作为示例，第一透镜的物侧面至摄像镜头的成像面的轴上距离 TTL与摄像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH≤1.6。
作为示例，在第一透镜与第二透镜之间设置有孔径光阑，其中，孔径光阑至摄像镜头的成像面的轴上距离SL与第一透镜的物侧面至摄像镜头的成像面的轴上距离TTL满足0.7≤SL/TTL≤0.9。
作为示例，第一透镜的有效焦距f1与第三透镜的有效焦距f3可满足0.2＜f1/f3＜0.8，而第三透镜的有效焦距f3与第四透镜的有效焦距f4可满足-0.2＜f3/f4≤2.1。第四透镜和第五透镜的组合焦距可满足|f/f45|≤1.3。
作为示例，第三透镜的中心厚度CT3、第五透镜的中心厚度CT5以及第六透镜的中心厚度CT6可满足0.4≤CT3/(CT5+CT6)≤0.7。第一透镜的中心厚度CT1与第三透镜的中心厚度CT3可满足1.0≤CT1/CT3≤2.0。
作为示例，第一透镜的物侧面的最大有效半径DT11与第二透镜的像侧面的最大有效半径DT22满足0.1≤DT11/DT22≤1.6。
作为示例，第一透镜的物侧面的曲率半径R1与第二透镜的像侧面的曲率半径R4满足0＜R1/R4＜1.5。第六透镜的像侧面的曲率半径R12满足2.5＜f/R12＜4.0。
通过上述配置的摄像头，还可以进一步具有有效地平衡球差、使得光学系统具有较好的平场曲能力、具有较好的消畸变的能力等至少一个有益效果。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1为示出根据本申请实施例1的摄像镜头的结构示意图；
图2A示出了实施例1的摄像镜头的轴上色差曲线；
图2B示出了实施例1的摄像镜头的象散曲线；
图2C示出了实施例1的摄像镜头的畸变曲线；
图2D示出了实施例1的摄像镜头的倍率色差曲线；
图3为示出根据本申请实施例2的摄像镜头的结构示意图；
图4A示出了实施例2的摄像镜头的轴上色差曲线；
图4B示出了实施例2的摄像镜头的象散曲线；
图4C示出了实施例2的摄像镜头的畸变曲线；
图4D示出了实施例2的摄像镜头的倍率色差曲线；
图5为示出根据本申请实施例3的摄像镜头的结构示意图；
图6A示出了实施例3的摄像镜头的轴上色差曲线；
图6B示出了实施例3的摄像镜头的象散曲线；
图6C示出了实施例3的摄像镜头的畸变曲线；
图6D示出了实施例3的摄像镜头的倍率色差曲线；
图7为示出根据本申请实施例4的摄像镜头的结构示意图；
图8A示出了实施例4的摄像镜头的轴上色差曲线；
图8B示出了实施例4的摄像镜头的象散曲线；
图8C示出了实施例4的摄像镜头的畸变曲线；
图8D示出了实施例4的摄像镜头的倍率色差曲线；
图9为示出根据本申请实施例5的摄像镜头的结构示意图；
图10A示出了实施例5的摄像镜头的轴上色差曲线；
图10B示出了实施例5的摄像镜头的象散曲线；
图10C示出了实施例5的摄像镜头的畸变曲线；
图10D示出了实施例5的摄像镜头的倍率色差曲线；
图11为示出根据本申请实施例6的摄像镜头的结构示意图；
图12A示出了实施例6的摄像镜头的轴上色差曲线；
图12B示出了实施例6的摄像镜头的象散曲线；
图12C示出了实施例6的摄像镜头的畸变曲线；
图12D示出了实施例6的摄像镜头的倍率色差曲线；
图13为示出根据本申请实施例7的摄像镜头的结构示意图；
图14A示出了实施例7的摄像镜头的轴上色差曲线；
图14B示出了实施例7的摄像镜头的象散曲线；
图14C示出了实施例7的摄像镜头的畸变曲线；
图14D示出了实施例7的摄像镜头的倍率色差曲线；
图15为示出根据本申请实施例8的摄像镜头的结构示意图；
图16A示出了实施例8的摄像镜头的轴上色差曲线；
图16B示出了实施例8的摄像镜头的象散曲线；
图16C示出了实施例8的摄像镜头的畸变曲线；
图16D示出了实施例8的摄像镜头的倍率色差曲线；
图17为示出根据本申请实施例9的摄像镜头的结构示意图；
图18A示出了实施例9的摄像镜头的轴上色差曲线；
图18B示出了实施例9的摄像镜头的象散曲线；
图18C示出了实施例9的摄像镜头的畸变曲线；
图18D示出了实施例9的摄像镜头的倍率色差曲线；
图19为示出根据本申请实施例10的摄像镜头的结构示意图；
图20A示出了实施例10的摄像镜头的轴上色差曲线；
图20B示出了实施例10的摄像镜头的象散曲线；
图20C示出了实施例10的摄像镜头的畸变曲线；
图20D示出了实施例10的摄像镜头的倍率色差曲线；
图21为示出根据本申请实施例11的摄像镜头的结构示意图；
图22A示出了实施例11的摄像镜头的轴上色差曲线；
图22B示出了实施例11的摄像镜头的象散曲线；
图22C示出了实施例11的摄像镜头的畸变曲线；
图22D示出了实施例11的摄像镜头的倍率色差曲线；
图23为示出根据本申请实施例12的摄像镜头的结构示意图；
图24A示出了实施例12的摄像镜头的轴上色差曲线；
图24B示出了实施例12的摄像镜头的象散曲线；
图24C示出了实施例12的摄像镜头的畸变曲线；
图24D示出了实施例12的摄像镜头的倍率色差曲线。
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。
应理解的是，虽然用语第一、第二等在本文中可以用来描述各种元件、部件、区域、层和/或段，但是这些元件、部件、区域、层和/或段不应被这些用语限制。这些用语仅用于将一个元件、部件、区域、层或段与另一个元件、部件、区域、层或段区分开。因此，在不背离本申请的教导的情况下，下文中讨论的第一元件、第一部件、第一区域、第一层或第一段可被称作第二元件、第二部件、第二区域、第二层或第二段。
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。
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摄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。这六透镜沿着光轴从物侧至像侧依次排列。
根据该实施方式，第一透镜具有正光焦度，其物侧面为凸面。第二透镜具有负光焦度，其像侧面为凹面。第三透镜具有正光焦度；第四透镜具有正光焦度或负光焦度，其像侧面为凸面。第五透镜具有正光焦度或负光焦度。第六透镜具有负光焦度，并且其像侧面在近轴处为凹面，且具有至少一个反曲点，即该透镜从中心至边缘存在由凹变凸或由凹变凸再变凹的变化趋势。
根据本申请示例性实施方式的上述摄像镜头的总有效焦距f以及入瞳直径EPD可满足f/EPD≤1.8，例如，1.69≤f/EPD≤1.8。这可在加大通光量的过程中，使系统具有大光圈优势，从而在减小边缘视场的像差的同时增强暗环境下的成像效果。可选地，第一透镜的物侧面至摄像镜头的成像面的轴上距离TTL与摄像镜头的成像面上有效像素区域对角线长的一半ImgH可满足TTL/ImgH≤1.6，例如，1.53≤TTL/ImgH≤1.6。这可有效地压缩摄像镜头的总尺寸，从而保证摄像镜头的超薄特性与小型化。
在示例性实施方式中，在第一透镜与第二透镜之间可设置有孔径光阑。孔径光阑至摄像镜头的成像面的轴上距离SL与第一透镜的物侧面至摄像镜头的成像面的轴上距离TTL可满足0.7≤SL/TTL≤0.9，例如，0.76≤SL/TTL≤0.86。将孔径光阑作为一个设计变量设置在第一透镜与第二透镜之间，可有效地增加系统消像差能力。
第一透镜的物侧面的最大有效半径DT11与第二透镜的像侧面的最大有效半径DT22可满足0.1≤DT11/DT22≤1.6，例如DT11与DT22进一步可满足1.19≤DT11/DT22≤1.51。通光约束第一透镜和第二透镜的口径，使得光学系统前端口径较小，从而可有效地减小模组的前 端开口。
此外，第一透镜的物侧面的曲率半径R1与第二透镜的像侧面的曲率半径R4可满足0＜R1/R4＜1.5，例如R1与R4进一步可满足0.49≤R1/R4≤1.08。通过合理配置第一透镜的物侧面的曲率半径R1与第二透镜的像侧面的曲率半径R4，将第一透镜和第二透镜作为一个光组来设计，从而可有效的增加系统消像散的能力。
第一透镜的有效焦距f1与第三透镜的有效焦距f3可满足0.2＜f1/f3＜0.8，例如，f1与f3进一步可满足0.32≤f1/f3≤0.65。通过合理配置第一透镜的有效焦距f1与第三透镜的有效焦距f3可使第一透镜和第三透镜合理的承担偏转角，以减小系统的初级像差。
第三透镜的有效焦距f3与第四透镜的有效焦距f4可满足-0.2＜f3/f4≤2.1，例如，f3与f4进一步可满足-0.13≤f3/f4≤2.02。如本领域技术人员已知的，球差是限制透镜分辨率的最主要的因素之一，在本申请中通过引入合理光焦度的负透镜，可有效地平衡球差，从而有效地提高成像质量。
摄像镜头的总有效焦距f与第四透镜和第五透镜的组合焦距f45可满足|f/f45|≤1.3，例如，f与f45进一步可满足0.1≤|f/f45|≤1.23。通过合理配置第四透镜和第五透镜的组合焦距，可使光学系统具有较好的平场曲能力。
在应用中，可对各透镜的厚度进行优化。例如，第一透镜的中心厚度CT1与第三透镜的中心厚度CT3可满足1.0≤CT1/CT3≤2.0，例如，1.07≤CT1/CT3≤1.99。通过合理配置第一透镜的中心厚度CT1与第三透镜的中心厚度CT3可以使得摄像镜头在保证小型化的同时具有较好的消畸变的能力。又例如，第三透镜的中心厚度CT3、第五透镜的中心厚度CT5以及第六透镜的中心厚度CT6可满足0.4≤CT3/(CT5+CT6)≤0.7，例如，0.46≤CT3/(CT5+CT6)≤0.68。通过合理配置各透镜的中心厚度，可以使得摄像镜头具有较好的消畸变的能力。
此外，还可对各透镜之间在光轴上的空气间隔距离进行优化。例如，第五透镜和第六透镜在光轴上的空气间隔T56与第六透镜的中心 厚度CT6可满足0.3≤T56/CT6≤0.8，例如，0.35≤T56/CT6≤0.75。通过合理配置第五透镜和第六透镜在光轴上的空气间隔，可有效地压缩摄像镜头的尺寸，从而保证摄像镜头的超薄特性。为了保证摄像镜头能够较容易地与常用芯片的匹配，需要合理配置第六透镜的像侧面的曲率半径。例如，摄像镜头的总有效焦距f与第六透镜的像侧面的曲率半径R12可满足2.5＜f/R12＜4.0，例如，f与R12进一步可满足2.55≤f/R12≤3.66。
根据本申请的上述实施方式的摄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、各透镜之间的轴上间距等，可有效增加摄像镜头的视角，保证镜头的小型化并提高成像质量，从而使得摄像镜头更有利于生产加工并且可适用于便携式电子产品。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：从透镜中心到周边曲率是连续变化的。与从透镜中心到周边有一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。
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，可改变镜头的构成数量，来获得下面描述的各个结果和优点。例如，虽然在实施方式中以六个透镜为例进行了描述，但是该摄像镜头不限于包括六个透镜。如果需要，该摄像镜头还可包括其它数量的透镜。
下面参照图1至图24D进一步描述可适用于上述实施方式的摄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的摄像镜头。
如图1所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表1示出了实施例1的摄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)。
Figure PCTCN2017093501-appb-000001
表1
由表1可得，第一透镜E1的物侧面的曲率半径R1与第二透镜E2的像侧面的曲率半径R4满足R1/R4＝1.08。
本实施例采用了6片透镜作为示例，通过合理分配个镜片的焦距与面型，有效扩大视场角，缩短了镜头总长度，保证镜头的广角化与小型化；同时校正各类像差，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 PCTCN2017093501-appb-000002
其中，c为非球面的近轴曲率，即为上表1中曲率半径的倒数，h为非球面上任一点距主光轴的高度，k为圆锥系数，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、A18和A20。
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.7378E-02 4.4322E-02 -2.1155E-01 4.8932E-01 -7.2301E-01 6.6669E-01 -3.7475E-01 1.1711E-01 -1.5683E-02
S2 -1.6820E-01 6.2779E-01 -1.7885E+00 3.8866E+00 -6.1513E+00 6.6718E+00 -4.6434E+00 1.8563E+00 -3.2297E-01
S3 -7.3309E-02 4.7741E-01 -1.5693E+00 4.2745E+00 -8.5838E+00 1.1671E+01 -9.9976E+00 4.8345E+00 -1.0013E+00
S4 1.5271E-01 -3.6754E-01 2.6973E+00 -1.4287E+01 4.9083E+01 -1.0625E+02 1.4034E+02 -1.0342E+02 3.2683E+01
S5 -6.3567E-02 1.7370E-02 -3.3922E-01 1.2938E+00 -2.1016E+00 -7.2968E-01 7.5445E+00 -1.0051E+01 4.5534E+00
S6 -5.6980E-02 -2.3016E-02 1.4058E-02 -2.7622E-01 9.1840E-01 -1.6077E+00 1.6172E+00 -8.9652E-01 2.2020E-01
S7 -6.4796E-02 -2.1160E-02 5.8456E-01 -2.1719E+00 3.7855E+00 -3.8304E+00 2.3564E+00 -8.2886E-01 1.2908E-01
S8 -3.1421E-02 1.0684E-01 -3.9403E-02 -4.7733E-01 9.1546E-01 -7.1795E-01 2.8527E-01 -5.6420E-02 4.3527E-03
S9 6.9616E-02 -1.2794E-01 2.1492E-02 -1.8027E-01 4.1023E-01 -3.5879E-01 1.5649E-01 -3.4155E-02 2.9800E-03
S10 8.0893E-03 3.2438E-02 -1.9090E-01 2.3018E-01 -1.5257E-01 6.2678E-02 -1.5878E-02 2.2704E-03 -1.3964E-04
S11 -4.2159E-01 3.6345E-01 -2.2341E-01 9.9536E-02 -2.9896E-02 5.8615E-03 -7.2313E-04 5.1376E-05 -1.6185E-06
S12 -3.0311E-01 2.7008E-01 -2.0089E-01 1.0520E-01 -3.5920E-02 7.8083E-03 -1.0446E-03 7.8795E-05 -2.5786E-06
表2
以下所示出的表3给出实施例1的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。在该实施例中，摄像镜头的半视场角度HFOV可设置为HFOV＝36.36°。
Figure PCTCN2017093501-appb-000003
表3
根据表3，第一透镜E1的有效焦距f1与第三透镜E3的有效焦距f3满足f1/f3＝0.32。第三透镜E3的有效焦距f3与第四透镜E4的有效焦距f4满足f3/f4＝2.01。摄像镜头的总有效焦距f与第四透镜E4和第五透镜E5的组合焦距满足|f/f45|＝0.1。结合表1和表3可得，摄像镜头的总有效焦距f与第六透镜的像侧面的曲率半径R12满足f/R12＝3.47。
在该实施例中，摄像镜头的总有效焦距f与摄像镜头的入瞳直径 EPD满足f/EPD＝1.7。第一透镜E1的物侧面至摄像镜头的成像面的轴上距离TTL与摄像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＝1.55。孔径光阑至摄像镜头的成像面的轴上距离SL与第一透镜E1的物侧面至摄像镜头的成像面的轴上距离TTL满足SL/TTL＝0.77，其中，孔径光阑设置在第一透镜E1与第二透镜E2之间。第三透镜E3的中心厚度CT3、第五透镜E5的中心厚度CT5以及第六透镜E6的中心厚度CT6满足CT3/(CT5+CT6)＝0.64。第一透镜E1的中心厚度CT1与第三透镜E3的中心厚度CT3满足CT1/CT3＝1.99。第五透镜E5和第六透镜E6在光轴上的空气间隔T56与第六透镜E6的中心厚度CT6满足T56/CT6＝0.37。第一透镜E1的物侧面的最大有效半径DT11与第二透镜E2的像侧面的最大有效半径DT22满足DT11/DT22＝1.51。
图2A示出了实施例1的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄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的摄像镜头。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的摄像镜头的结构示意图。
如图3所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除 红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表4示出了实施例2的摄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)。表5示出了实施例2中各镜面的高次项系数。表6示出了实施例2的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000004
表4
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.5895E-02 4.4630E-02 -1.8529E-01 4.0061E-01 -5.6674E-01 5.0879E-01 -2.8194E-01 8.7675E-02 -1.1780E-02
S2 -6.7777E-02 1.5781E-01 -2.8512E-01 4.0944E-01 -4.6011E-01 3.6729E-01 -1.8948E-01 5.4783E-02 -6.5326E-03
S3 -2.8129E-02 1.5214E-01 -4.8254E-01 1.5512E+00 -3.5415E+00 5.2109E+00 -4.6927E+00 2.3516E+00 -5.0207E-01
S4 1.4007E-01 -3.8425E-01 2.4221E+00 -1.1143E+01 3.4112E+01 -6.7111E+01 8.1753E+01 -5.6204E+01 1.6742E+01
S5 -7.2805E-02 1.8331E-01 -1.7672E+00 8.4980E+00 -2.4715E+01 4.4005E+01 -4.6812E+01 2.7104E+01 -6.4280E+00
S6 -2.8032E-02 -2.3535E-01 1.2053E+00 -4.3165E+00 9.7003E+00 -1.3791E+01 1.2071E+01 -5.9472E+00 1.2722E+00
S7 -6.8490E-02 8.3254E-02 -6.1488E-02 -1.4908E-01 1.5413E-01 1.1134E-01 -2.4839E-01 1.4114E-01 -2.7282E-02
S8 -2.6723E-02 1.4182E-01 -2.4005E-01 1.7898E-01 -3.8019E-02 -1.9813E-02 1.3402E-02 -2.8928E-03 2.1397E-04
S9 6.9851E-02 -2.2936E-01 1.8328E-01 -9.0052E-02 6.0149E-02 -5.0252E-02 2.5139E-02 -6.0918E-03 5.6529E-04
S10 1.4029E-01 -3.5754E-01 3.6634E-01 -2.4424E-01 1.1027E-01 -3.3539E-02 6.5208E-03 -7.2026E-04 3.3890E-05
S11 -2.4198E-01 8.1708E-02 -9.7181E-03 5.7149E-03 -5.0239E-03 1.9272E-03 -3.7992E-04 3.8536E-05 -1.6046E-06
S12 -1.9487E-01 8.2053E-02 -1.8210E-02 -3.3754E-03 4.3873E-03 -1.4892E-03 2.4243E-04 -1.8760E-05 5.2734E-07
表5
Figure PCTCN2017093501-appb-000005
表6
图4A示出了实施例2的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的摄像镜头。图5示出了根据本申请实施例3的摄像镜头的结构示意图。
如图5所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表7示出了实施例3的摄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)。表8示出了实施例3中各镜面的高次项系数。表9示出了实施例3的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的 半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000006
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -6.8729E-03 6.0252E-02 -2.0010E-01 4.1181E-01 -5.3485E-01 4.4019E-01 -2.2333E-01 6.3788E-02 -7.8952E-03
S2 -7.4435E-03 -3.3539E-02 1.6463E-01 -4.2414E-01 6.7073E-01 -6.7157E-01 4.1265E-01 -1.4203E-01 2.0918E-02
S3 -5.1459E-02 1.1922E-01 -4.5447E-01 1.3445E+00 -2.4894E+00 2.8723E+00 -2.0127E+00 7.8507E-01 -1.3095E-01
S4 8.6907E-03 -7.3469E-02 5.3862E-01 -1.6848E+00 3.2448E+00 -3.8934E+00 2.8299E+00 -1.1329E+00 1.9125E-01
S5 -4.2405E-02 2.7931E-02 -1.8378E-01 5.2877E-01 -1.0095E+00 1.2332E+00 -9.3137E-01 3.9358E-01 -6.9486E-02
S6 -4.4293E-02 -5.1937E-02 8.8257E-02 -1.1390E-01 8.9862E-02 -3.2608E-02 -2.8566E-03 5.7769E-03 -1.1607E-03
S7 -1.5013E-02 -1.6912E-01 3.3490E-01 -4.2670E-01 4.0605E-01 -2.5986E-01 1.0378E-01 -2.3319E-02 2.2378E-03
S8 8.2519E-02 -3.8070E-01 5.1138E-01 -4.2984E-01 2.6130E-01 -1.1252E-01 3.2176E-02 -5.4079E-03 3.9769E-04
S9 1.9286E-01 -3.4920E-01 2.7749E-01 -1.5235E-01 5.9243E-02 -1.4867E-02 1.4149E-03 2.7256E-04 -5.9095E-05
S10 2.9612E-01 -1.9145E-01 3.2889E-02 2.6762E-02 -2.1058E-02 7.0222E-03 -1.2669E-03 1.1968E-04 -4.6385E-06
S11 -4.9044E-03 -5.3899E-02 4.5752E-02 -2.8120E-02 1.1847E-02 -2.9628E-03 4.1912E-04 -3.1047E-05 9.3529E-07
S12 -7.0376E-02 3.1635E-02 -1.4296E-02 4.7845E-03 -1.0801E-03 1.6256E-04 -1.5783E-05 8.9029E-07 -2.1908E-08
表8
Figure PCTCN2017093501-appb-000007
表9
图6A示出了实施例3的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的摄像镜头。图7示出了根据本申请实施例4的摄像镜头的结构示意图。
如图7所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表10示出了实施例4的摄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)。表11示出了实施例4中各镜面的高次项系数。表12示出了实施例4的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000008
Figure PCTCN2017093501-appb-000009
表10
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.9210E-02 2.8677E-02 -1.1992E-01 2.4950E-01 -3.4365E-01 3.0152E-01 -1.6542E-01 5.1589E-02 -7.1154E-03
S2 -2.7593E-02 8.9422E-03 9.5566E-02 -3.3266E-01 5.9565E-01 -6.5866E-01 4.4502E-01 -1.6891E-01 2.7585E-02
S3 -5.4919E-02 1.1906E-01 -2.9686E-01 9.8351E-01 -2.2397E+00 3.1894E+00 -2.7434E+00 1.3047E+00 -2.6303E-01
S4 6.7424E-02 -1.4751E-01 1.0023E+00 -4.0930E+00 1.1255E+01 -2.0188E+01 2.2696E+01 -1.4526E+01 4.0586E+00
S5 -5.5156E-02 -9.3116E-02 6.6332E-01 -3.5971E+00 1.1685E+01 -2.3682E+01 2.9178E+01 -1.9998E+01 5.8615E+00
S6 -2.4766E-02 -1.7214E-01 7.4884E-01 -2.3930E+00 4.8380E+00 -6.2406E+00 4.9796E+00 -2.2376E+00 4.3390E-01
S7 -9.5841E-03 -2.6105E-01 1.1724E+00 -2.7542E+00 3.7294E+00 -3.0775E+00 1.5479E+00 -4.3897E-01 5.3831E-02
S8 -1.9994E-02 1.0231E-01 2.1190E-02 -3.5487E-01 5.0426E-01 -3.2673E-01 1.1193E-01 -1.9774E-02 1.4254E-03
S9 -8.3575E-03 9.4933E-02 -3.0411E-01 3.4781E-01 -2.2051E-01 8.4768E-02 -1.9566E-02 2.4927E-03 -1.3478E-04
S10 2.4334E-01 -4.5149E-01 4.0189E-01 -2.3718E-01 9.4431E-02 -2.4763E-02 4.0580E-03 -3.7362E-04 1.4671E-05
S11 1.1433E-01 -3.2703E-01 2.2250E-01 -7.1522E-02 1.0309E-02 1.6430E-04 -2.7023E-04 3.4856E-05 -1.5018E-06
S12 -8.3329E-02 -3.7576E-03 -3.8806E-03 1.3568E-02 -7.5499E-03 2.0162E-03 -2.9624E-04 2.3126E-05 -7.5173E-07
表11
Figure PCTCN2017093501-appb-000010
表12
图8A示出了实施例4的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的摄像镜头。图9示出了根据本申请实施例5的摄像镜头的结构示意图。
如图9所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表13示出了实施例5的摄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)。表14示出了实施例5中各镜面的高次项系数。表15示出了实施例5的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000011
Figure PCTCN2017093501-appb-000012
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.4867E-02 4.1752E-02 -1.7743E-01 3.8878E-01 -5.5642E-01 5.0457E-01 -2.8211E-01 8.8444E-02 -1.1973E-02
S2 -6.9037E-02 1.6477E-01 -3.0729E-01 4.6224E-01 -5.4888E-01 4.6623E-01 -2.5855E-01 8.1967E-02 -1.1121E-02
S3 -2.8382E-02 1.4616E-01 -4.4844E-01 1.4126E+00 -3.2135E+00 4.7383E+00 -4.2866E+00 2.1602E+00 -4.6398E-01
S4 1.4088E-01 -3.8405E-01 2.3852E+00 -1.0903E+01 3.3287E+01 -6.5458E+01 7.9839E+01 -5.5028E+01 1.6450E+01
S5 -7.1994E-02 1.9405E-01 -1.8928E+00 9.2654E+00 -2.7445E+01 4.9865E+01 -5.4274E+01 3.2288E+01 -7.9385E+00
S6 -3.0031E-02 -2.0129E-01 1.0234E+00 -3.7347E+00 8.5274E+00 -1.2300E+01 1.0911E+01 -5.4448E+00 1.1799E+00
S7 -6.6580E-02 9.6087E-02 -1.1238E-01 -4.1132E-02 3.1233E-02 1.9281E-01 -2.8206E-01 1.5027E-01 -2.8670E-02
S8 -2.3898E-02 1.2951E-01 -2.2599E-01 1.8266E-01 -5.5819E-02 -6.3547E-03 9.0754E-03 -2.3552E-03 2.0883E-04
S9 6.9663E-02 -2.2906E-01 1.7905E-01 -7.1628E-02 3.1133E-02 -2.7975E-02 1.6036E-02 -4.1813E-03 4.0270E-04
S10 1.3854E-01 -3.5040E-01 3.5778E-01 -2.3894E-01 1.0855E-01 -3.3390E-02 6.6099E-03 -7.4996E-04 3.6668E-05
S11 -2.3747E-01 7.5881E-02 -7.7880E-03 6.9086E-03 -6.3159E-03 2.4217E-03 -4.7783E-04 4.8580E-05 -2.0291E-06
S12 -1.9621E-01 9.0204E-02 -2.8744E-02 4.0454E-03 1.2398E-03 -6.7386E-04 1.1653E-04 -8.1368E-06 1.5094E-07
表14
Figure PCTCN2017093501-appb-000013
表15
图10A示出了实施例5的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例6
以下参照图11至图12D描述了根据本申请实施例6的摄像镜头。图11示出了根据本申请实施例6的摄像镜头的结构示意图。
如图11所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表16示出了实施例6的摄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)。表17示出了实施例6中各镜面的高次项系数。表18示出了实施例6的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000014
表16
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.1707E-03 1.3844E-02 -3.7298E-02 5.9721E-02 -6.1889E-02 4.0041E-02 -1.5924E-02 3.5755E-03 -3.6689E-04
S2 -2.5939E-02 3.5498E-02 6.2362E-02 -3.4577E-01 6.8090E-01 -7.6231E-01 5.0335E-01 -1.8238E-01 2.7941E-02
S3 -9.4998E-02 2.0055E-01 -3.4930E-01 6.3279E-01 -9.7493E-01 1.0603E+00 -7.2883E-01 2.8211E-01 -4.6903E-02
S4 -1.0348E-02 7.1847E-02 -1.9119E-02 -7.8222E-02 2.5952E-02 2.7294E-01 -4.7660E-01 3.2749E-01 -8.3288E-02
S5 -4.6184E-02 9.3309E-02 -5.6682E-01 1.7203E+00 -3.3108E+00 4.0093E+00 -2.9634E+00 1.2197E+00 -2.1182E-01
S6 -4.2356E-02 -5.3171E-02 3.5871E-02 3.3178E-02 -1.3597E-01 1.6918E-01 -1.0476E-01 3.2661E-02 -4.0376E-03
S7 -7.3573E-03 -1.6350E-01 2.9715E-01 -3.4381E-01 2.7966E-01 -1.3903E-01 3.8616E-02 -5.2235E-03 2.2404E-04
S8 6.4397E-02 -3.4712E-01 4.9750E-01 -4.5334E-01 2.9574E-01 -1.3205E-01 3.7933E-02 -6.3060E-03 4.5885E-04
S9 1.9010E-01 -3.2659E-01 2.7804E-01 -1.9992E-01 1.1750E-01 -4.8644E-02 1.2201E-02 -1.5708E-03 7.3903E-05
S10 2.9236E-01 -1.6097E-01 -1.8502E-02 6.7171E-02 -3.9106E-02 1.1893E-02 -2.0553E-03 1.9029E-04 -7.3325E-06
S11 -8.2726E-03 -4.2913E-02 2.9800E-02 -1.6275E-02 6.9451E-03 -1.7772E-03 2.5246E-04 -1.8433E-05 5.3773E-07
S12 -7.0547E-02 3.4410E-02 -1.8827E-02 7.6333E-03 -2.0827E-03 3.7169E-04 -4.1368E-05 2.5856E-06 -6.8765E-08
表17
Figure PCTCN2017093501-appb-000015
表18
图12A示出了实施例6的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例7
以下参照图13至图14D描述了根据本申请实施例7的摄像镜头。图13示出了根据本申请实施例7的摄像镜头的结构示意图。
如图13所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表19示出了实施例7的摄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)。 表20示出了实施例7中各镜面的高次项系数。表21示出了实施例7的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000016
表19
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.7020E-03 2.9739E-02 -9.8232E-02 1.9891E-01 -2.5615E-01 2.0746E-01 -1.0317E-01 2.8713E-02 -3.4522E-03
S2 -2.3962E-02 4.0791E-02 1.1801E-02 -1.8065E-01 3.7916E-01 -4.3476E-01 2.9241E-01 -1.0798E-01 1.6886E-02
S3 -6.4692E-02 2.0401E-01 -5.6994E-01 1.5119E+00 -2.8900E+00 3.5745E+00 -2.6984E+00 1.1292E+00 -2.0063E-01
S4 -1.0968E-02 3.9982E-02 1.3073E-01 -5.5551E-01 1.0200E+00 -1.0422E+00 5.8315E-01 -1.4444E-01 5.6899E-03
S5 -4.9755E-02 9.7584E-02 -5.9448E-01 1.7615E+00 -3.3175E+00 3.9555E+00 -2.8972E+00 1.1899E+00 -2.0761E-01
S6 -3.6725E-02 -7.8520E-02 1.2325E-01 -1.5191E-01 1.0725E-01 -3.0062E-02 -6.7544E-03 6.4660E-03 -1.1324E-03
S7 3.3698E-03 -1.8934E-01 3.3029E-01 -3.7511E-01 3.0790E-01 -1.6048E-01 4.9023E-02 -7.9074E-03 5.0224E-04
S8 6.6743E-02 -3.8348E-01 5.9535E-01 -5.9949E-01 4.2999E-01 -2.0784E-01 6.3425E-02 -1.0988E-02 8.2023E-04
S9 1.8262E-01 -2.9686E-01 2.3054E-01 -1.5384E-01 8.8384E-02 -3.6734E-02 9.2378E-03 -1.1782E-03 5.3893E-05
S10 2.9708E-01 -1.6805E-01 -1.4810E-02 6.7188E-02 -3.9899E-02 1.2252E-02 -2.1314E-03 1.9844E-04 -7.6889E-06
S11 -3.3770E-03 -5.8494E-02 4.7324E-02 -2.7111E-02 1.1023E-02 -2.7268E-03 3.8566E-04 -2.8730E-05 8.7442E-07
S12 -7.0098E-02 3.1811E-02 -1.6932E-02 7.0112E-03 -2.0120E-03 3.8128E-04 -4.4941E-05 2.9543E-06 -8.2060E-08
表20
Figure PCTCN2017093501-appb-000017
表21
图14A示出了实施例7的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄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所给出的摄像镜头实现了良好的成像品质。
实施例8
以下参照图15至图16D描述了根据本申请实施例8的摄像镜头。图15示出了根据本申请实施例8的摄像镜头的结构示意图。
如图15所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表22示出了实施例8的摄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)。表23示出了实施例8中各镜面的高次项系数。表24示出了实施例8的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000018
Figure PCTCN2017093501-appb-000019
表22
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.3406E-02 3.0275E-02 -1.6237E-01 3.8992E-01 -5.9436E-01 5.6057E-01 -3.2082E-01 1.0176E-01 -1.3825E-02
S2 -1.5912E-01 5.7464E-01 -1.5296E+00 3.1076E+00 -4.6363E+00 4.7884E+00 -3.2039E+00 1.2413E+00 -2.1061E-01
S3 -7.1479E-02 4.3593E-01 -1.3585E+00 3.5272E+00 -6.7790E+00 8.8402E+00 -7.2574E+00 3.3520E+00 -6.5878E-01
S4 1.5499E-01 -3.3996E-01 2.3634E+00 -1.2255E+01 4.1838E+01 -9.0548E+01 1.2009E+02 -8.9155E+01 2.8475E+01
S5 -7.0959E-02 1.5748E-01 -1.6218E+00 8.3683E+00 -2.6465E+01 5.1857E+01 -6.1460E+01 4.0211E+01 -1.1017E+01
S6 -5.2375E-02 -3.6838E-02 5.4237E-02 -3.4164E-01 9.6971E-01 -1.6035E+00 1.5719E+00 -8.6192E-01 2.1174E-01
S7 -7.4673E-02 9.3477E-02 -1.5016E-01 2.1163E-01 -6.8242E-01 1.2484E+00 -1.1287E+00 5.0257E-01 -8.8337E-02
S8 -4.0758E-02 1.3412E-01 -9.9287E-02 -3.0091E-01 6.5979E-01 -5.4309E-01 2.2830E-01 -4.9015E-02 4.2642E-03
S9 3.9922E-02 -7.4990E-02 -4.0820E-02 -3.4513E-02 1.9455E-01 -1.9301E-01 8.7631E-02 -1.9373E-02 1.6905E-03
S10 2.9934E-02 -5.6267E-02 -3.4496E-02 7.3673E-02 -5.3945E-02 2.2662E-02 -5.7167E-03 8.0371E-04 -4.8220E-05
S11 -3.8325E-01 3.1513E-01 -2.0079E-01 9.9344E-02 -3.3906E-02 7.5805E-03 -1.0619E-03 8.4845E-05 -2.9623E-06
S12 -2.7290E-01 2.2790E-01 -1.6343E-01 8.3573E-02 -2.7849E-02 5.8891E-03 -7.6586E-04 5.6404E-05 -1.8204E-06
表23
Figure PCTCN2017093501-appb-000020
表24
图16A示出了实施例8的摄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的摄像镜头的象散曲线，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的摄像镜头的畸变曲线，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的摄像镜头的倍率色差曲线，其表示光线经由摄像镜头后在成像面上的不同的像高的偏差。根据图16A至 图16D可知，实施例8所给出的摄像镜头实现了良好的成像品质。
实施例9
以下参照图17至图18D描述了根据本申请实施例9的摄像镜头。图17示出了根据本申请实施例9的摄像镜头的结构示意图。
如图17所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表25示出了实施例9的摄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)。表26示出了实施例9中各镜面的高次项系数。表27示出了实施例9的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000021
Figure PCTCN2017093501-appb-000022
表25
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.2499E-03 2.3637E-02 -7.2862E-02 1.4439E-01 -1.8192E-01 1.4567E-01 -7.2302E-02 2.0366E-02 -2.5206E-03
S2 -2.0504E-02 2.0295E-02 -8.1027E-03 -2.2935E-02 7.4811E-02 -1.1531E-01 9.7755E-02 -4.3473E-02 7.8799E-03
S3 -5.0039E-02 -2.1600E-02 3.5039E-01 -1.1584E+00 2.3559E+00 -3.0518E+00 2.4203E+00 -1.0664E+00 1.9942E-01
S4 1.9336E-03 -6.3606E-03 1.6968E-01 -4.0783E-01 5.7614E-01 -4.6960E-01 1.7776E-01 6.6143E-03 -1.7841E-02
S5 -3.4585E-02 6.0877E-02 -3.2909E-01 8.4208E-01 -1.4326E+00 1.6068E+00 -1.1442E+00 4.6664E-01 -8.1249E-02
S6 -3.9900E-02 -7.3110E-02 1.1401E-01 -1.3555E-01 8.2399E-02 -1.3235E-04 -2.8724E-02 1.4480E-02 -2.2478E-03
S7 -2.6026E-02 -9.5914E-02 1.7892E-01 -2.4535E-01 2.5711E-01 -1.6220E-01 5.8236E-02 -1.1071E-02 8.6229E-04
S8 6.4887E-02 -3.2349E-01 4.6157E-01 -4.4359E-01 3.1547E-01 -1.5325E-01 4.6988E-02 -8.1420E-03 6.0459E-04
S9 1.8508E-01 -2.8771E-01 1.8238E-01 -7.6521E-02 2.4788E-02 -6.2867E-03 5.9919E-04 1.8479E-04 -3.9361E-05
S10 2.9858E-01 -1.9213E-01 2.5324E-02 3.6128E-02 -2.6293E-02 8.6567E-03 -1.5605E-03 1.4807E-04 -5.7848E-06
S11 1.3044E-03 -6.6097E-02 5.8308E-02 -3.4123E-02 1.3213E-02 -3.0874E-03 4.1573E-04 -2.9708E-05 8.7164E-07
S12 -7.1001E-02 3.0759E-02 -1.1825E-02 3.2122E-03 -5.9502E-04 7.6585E-05 -6.8076E-06 3.7672E-07 -9.4866E-09
表26
Figure PCTCN2017093501-appb-000023
表27
图18A示出了实施例9的摄像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图18B示出了实施例9的摄像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图18C示出了实施例9的摄像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图18D示出了实施例9的摄像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图18A至图18D可知，实施例9所给出的摄像镜头实现了良好的成像品质。
实施例10
以下参照图19至图20D描述了根据本申请实施例10的摄像镜头。图19示出了根据本申请实施例10的摄像镜头的结构示意图。
如图19所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表28示出了实施例10的摄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)。表29示出了实施例10中各镜面的高次项系数。表30示出了实施例10的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000024
表28
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -3.7412E-03 3.4853E-02 -1.1678E-01 2.4307E-01 -3.1841E-01 2.6311E-01 -1.3387E-01 3.8350E-02 -4.7736E-03
S2 -1.2865E-02 -1.5824E-02 1.3732E-01 -3.8798E-01 6.2895E-01 -6.3348E-01 3.8894E-01 -1.3345E-01 1.9591E-02
S3 -7.4713E-02 1.6537E-01 -4.8940E-01 1.4030E+00 -2.7386E+00 3.3810E+00 -2.5361E+00 1.0561E+00 -1.8749E-01
S4 -1.1546E-02 6.5385E-02 -3.1883E-02 -8.3896E-02 3.3116E-01 -5.7350E-01 5.5043E-01 -2.7585E-01 5.6612E-02
S5 -2.9656E-02 1.1943E-01 -6.3626E-01 1.7334E+00 -3.0219E+00 3.3615E+00 -2.3135E+00 8.9852E-01 -1.4916E-01
S6 -4.9076E-02 -5.2601E-02 9.0186E-02 -1.3394E-01 1.1717E-01 -6.0422E-02 1.8099E-02 -2.4252E-03 5.4893E-05
S7 -4.6243E-03 -1.9389E-01 3.6082E-01 -4.1016E-01 3.2087E-01 -1.6043E-01 4.8339E-02 -8.0043E-03 5.5847E-04
S8 7.0414E-02 -3.9587E-01 6.2907E-01 -6.4572E-01 4.6472E-01 -2.2112E-01 6.5240E-02 -1.0777E-02 7.6015E-04
S9 1.5327E-01 -2.6444E-01 1.8770E-01 -9.8759E-02 3.9442E-02 -1.0221E-02 1.0568E-03 1.2997E-04 -2.9673E-05
S10 2.9469E-01 -1.8768E-01 2.8501E-02 2.7285E-02 -2.0081E-02 6.5028E-03 -1.1536E-03 1.0789E-04 -4.1568E-06
S11 -9.8491E-03 -4.3737E-02 3.4355E-02 -1.9863E-02 8.1789E-03 -1.9828E-03 2.6590E-04 -1.8152E-05 4.8443E-07
S12 -7.0603E-02 3.1916E-02 -1.6949E-02 6.7231E-03 -1.7194E-03 2.8078E-04 -2.8602E-05 1.6565E-06 -4.1385E-08
表29
Figure PCTCN2017093501-appb-000025
表30
图20A示出了实施例10的光学成像系统的轴上色差曲线，其表示不同波长的光线经由光学系统后的会聚焦点偏离。图20B示出了实施例10的光学成像系统的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图20C示出了实施例10的光学成像系统的畸变曲线，其表示不同视角情况下的畸变大小值。图20D示出了实施例10的光学成像系统的倍率色差曲线，其表示光线经由光学成像系统后在成像面上的不同的像高的偏差。根据图20A至图20D可知，实施例10所给出的光学成像系统的实现了良好的成像品质。
实施例11
以下参照图21至图22D描述了根据本申请实施例11的摄像镜头。图21示出了根据本申请实施例11的摄像镜头的结构示意图。
如图21所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像 在成像表面S15上。
表31示出了实施例11的摄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)。表32示出了实施例11中各镜面的高次项系数。表33示出了实施例11的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000026
表31
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.6168E-02 5.8162E-02 -2.6233E-01 6.3370E-01 -9.8155E-01 9.6021E-01 -5.7808E-01 1.9517E-01 -2.8427E-02
S2 -1.7337E-02 -5.3652E-02 3.6485E-01 -1.1685E+00 2.2650E+00 -2.7672E+00 2.0740E+00 -8.7127E-01 1.5698E-01
S3 -1.6155E-02 9.2042E-02 -7.7686E-01 3.3448E+00 -8.2811E+00 1.2553E+01 -1.1520E+01 5.8802E+00 -1.2814E+00
S4 1.0729E-01 -3.9012E-01 2.3303E+00 -1.0215E+01 3.0046E+01 -5.6935E+01 6.6815E+01 -4.4257E+01 1.2705E+01
S5 -6.7287E-02 1.4192E-01 -9.6771E-01 2.9822E+00 -4.6441E+00 1.3341E+00 6.5088E+00 -9.2333E+00 3.9757E+00
S6 -1.4709E-02 -2.5019E-01 1.2874E+00 -4.5510E+00 1.0039E+01 -1.4010E+01 1.2047E+01 -5.8360E+00 1.2255E+00
S7 -4.0211E-02 -1.2988E-02 3.3146E-01 -1.1698E+00 1.9142E+00 -1.8215E+00 1.0399E+00 -3.3182E-01 4.5607E-02
S8 -4.8736E-02 2.1652E-01 -3.0566E-01 2.1784E-01 -8.3893E-02 2.9567E-02 -1.4329E-02 4.5991E-03 -5.6618E-04
S9 4.2602E-02 -1.5509E-01 8.4950E-02 2.2530E-02 -6.0745E-02 3.7392E-02 -1.0979E-02 1.5600E-03 -8.4287E-05
S10 2.4152E-01 -5.7710E-01 6.1788E-01 -4.3413E-01 2.0605E-01 -6.4502E-02 1.2588E-02 -1.3730E-03 6.3449E-05
S11 -8.7821E-02 -1.0980E-01 4.7517E-02 5.0910E-02 -4.9466E-02 1.8338E-02 -3.5432E-03 3.5524E-04 -1.4672E-05
S12 -1.4467E-01 4.6574E-02 -2.2468E-02 2.0500E-02 -1.1299E-02 3.4566E-03 -6.0201E-04 5.6197E-05 -2.1836E-06
表32
Figure PCTCN2017093501-appb-000027
表33
图22A示出了实施例11的摄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22B示出了实施例11的摄像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图22C示出了实施例11的摄像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图22D示出了实施例11的摄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22A至图22D可知，实施例11所给出的摄像镜头实现了良好的成像品质。
实施例12
以下参照图23至图24D描述了根据本申请实施例12的摄像镜头。图23示出了根据本申请实施例12的摄像镜头的结构示意图。
如图23所示，摄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。可选地，摄像镜头还可包括具有物侧面S13和像侧面S14并用于滤除红外光的滤色片E7。在本实施例的摄像镜头中，还可设置有光圈STO以调解进光量。来自物体的光依序穿过各表面S1至S14并最终成像在成像表面S15上。
表34示出了实施例12的摄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)。表35示出了实施例12中各镜面的高次项系数。表36示出了实施例12的各透镜的有效焦距f1至f6、摄像镜头的总有效焦距f以及摄像镜头的半视场角度HFOV。其中，各非球面面型可由上述实施例中给出的公式1)限定。
Figure PCTCN2017093501-appb-000028
表34
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -8.2664E-04 2.4192E-02 -6.1478E-02 9.8357E-02 -7.3901E-02 7.8352E-03 2.7752E-02 -1.8261E-02 3.7358E-03
S2 -2.3064E-02 -2.4299E-02 3.1327E-01 -9.7300E-01 1.7516E+00 -1.9485E+00 1.3177E+00 -4.9616E-01 7.9889E-02
S3 -4.2162E-02 1.0781E-02 -4.4898E-02 3.4875E-01 -8.5500E-01 1.0874E+00 -7.8539E-01 3.0528E-01 -4.9700E-02
S4 4.1304E-03 -4.1118E-02 3.3387E-01 -8.8610E-01 1.4734E+00 -1.5619E+00 1.0124E+00 -3.6088E-01 5.3522E-02
S5 -2.0608E-02 3.5509E-03 -1.3369E-02 -2.3405E-02 9.6301E-02 -1.2255E-01 7.4684E-02 -2.0215E-02 1.6907E-03
S6 -2.8753E-02 -3.8577E-02 2.6563E-02 2.5070E-02 -9.9943E-02 1.2793E-01 -8.2447E-02 2.6673E-02 -3.4033E-03
S7 -1.8654E-02 -9.0723E-02 1.9244E-01 -2.8162E-01 2.8759E-01 -1.7522E-01 6.0883E-02 -1.1204E-02 8.4883E-04
S8 3.0357E-02 -2.2004E-01 2.8079E-01 -2.3976E-01 1.5789E-01 -7.0021E-02 1.8780E-02 -2.7326E-03 1.6538E-04
S9 1.2246E-01 -1.9261E-01 1.1179E-01 -4.5284E-02 1.0810E-02 1.3072E-03 -2.1725E-03 6.6105E-04 -6.6335E-05
S10 2.3160E-01 -9.3415E-02 -3.1089E-02 4.7403E-02 -2.2450E-02 5.7431E-03 -8.3210E-04 6.3795E-05 -2.0026E-06
S11 6.6096E-03 -8.9202E-02 8.1201E-02 -4.0384E-02 1.2332E-02 -2.3084E-03 2.5707E-04 -1.5630E-05 3.9978E-07
S12 -1.0976E-01 5.5483E-02 -2.4448E-02 8.2687E-03 -2.0388E-03 3.4568E-04 -3.7377E-05 2.2850E-06 -5.9492E-08
表35
Figure PCTCN2017093501-appb-000029
表36
图24A示出了实施例12的摄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24B示出了实施例12的摄像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图24C 示出了实施例12的摄像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图24D示出了实施例12的摄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24A至图24D可知，实施例12所给出的摄像镜头实现了良好的成像品质。
综上，实施例1至实施例12分别满足以下表37所示的关系。
条件式/实施例 1 2 3 4 5 6 7 8 9 10 11 12
f/EPD 1.70 1.70 1.80 1.79 1.69 1.80 1.80 1.70 1.80 1.80 1.70 1.80
TTL/ImgH 1.55 1.56 1.60 1.53 1.56 1.60 1.60 1.55 1.60 1.59 1.55 1.59
SL/TTL 0.77 0.76 0.85 0.83 0.77 0.85 0.85 0.76 0.86 0.86 0.80 0.84
f1/f3 0.32 0.36 0.38 0.45 0.36 0.50 0.49 0.33 0.65 0.35 0.49 0.58
f3/f4 2.01 1.83 0.05 1.52 1.79 0.05 0.02 2.02 0.16 0.60 1.49 -0.13
|f/f45| 0.10 0.18 1.02 0.42 0.23 1.04 1.01 0.19 1.00 1.23 0.27 0.97
CT3/(CT5+CT6) 0.64 0.67 0.48 0.66 0.64 0.59 0.62 0.63 0.53 0.46 0.68 0.61
CT1/CT3 1.99 1.85 1.11 1.45 1.87 1.19 1.20 1.99 1.08 1.19 1.56 1.07
T56/CT6 0.37 0.56 0.53 0.52 0.56 0.70 0.71 0.35 0.55 0.69 0.39 0.75
DT11/DT22 1.51 1.43 1.29 1.44 1.41 1.29 1.29 1.51 1.29 1.29 1.36 1.19
R1/R4 1.08 1.00 0.49 0.71 1.01 0.87 0.61 1.07 0.79 0.78 0.77 0.87
f/R12 3.47 3.50 2.89 2.89 3.49 2.78 2.70 3.55 2.81 2.87 3.66 2.55
表37
本申请还提供一种摄像装置，其感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。摄像装置可以是诸如数码相机的独立摄像设备，也可以是集成在诸如手机等移动电子设备上的摄像模块。该摄像装置装配有以上描述的摄像镜头。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (27)

  1. 摄像镜头，具有总有效焦距f以及入瞳直径EPD，并沿着光轴由物侧至像侧依序包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，
    所述第一透镜具有正光焦度、所述第二透镜具有负光焦度、所述第三透镜具有正光焦度、所述第四透镜具有正光焦度或负光焦度、所述第五透镜具有正光焦度或负光焦度、所述第六透镜具有负光焦度，以及，
    所述总有效焦距f与所述入瞳直径EPD满足f/EPD≤1.8。
  2. 根据权利要求1所述的摄像镜头，其特征在于，
    所述第一透镜的物侧面为凸面；
    所述第二透镜的像侧面为凹面；
    所述第四透镜的像侧面为凸面；以及
    所述第六透镜的像侧面在近轴处为凹面，且具有至少一个反曲点。
  3. 根据权利要求1所述的摄像镜头，其特征在于，所述第一透镜的物侧面至所述摄像镜头的成像面的轴上距离TTL与所述摄像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH≤1.6。
  4. 根据权利要求1或2所述的摄像镜头，其特征在于，在所述第一透镜与所述第二透镜之间设置有孔径光阑，其中，所述孔径光阑至所述摄像镜头的成像面的轴上距离SL与所述第一透镜的物侧面至所述摄像镜头的成像面的轴上距离TTL满足0.7≤SL/TTL≤0.9。
  5. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第一透镜的有效焦距f1与所述第三透镜的有效焦距f3满足0.2＜f1/f3＜0.8。
  6. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第三透镜的有效焦距f3与所述第四透镜的有效焦距f4满足-0.2＜f3/f4≤2.1。
  7. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第四透镜和所述第五透镜的组合焦距满足|f/f45|≤1.3。
  8. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第三透镜的中心厚度CT3、所述第五透镜的中心厚度CT5以及所述第六透镜的中心厚度CT6满足0.4≤CT3/(CT5+CT6)≤0.7。
  9. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第一透镜的中心厚度CT1与所述第三透镜的中心厚度CT3满足1.0≤CT1/CT3≤2.0。
  10. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第五透镜和所述第六透镜在所述光轴上的空气间隔T56与所述第六透镜的中心厚度CT6满足0.3≤T56/CT6≤0.8。
  11. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第一透镜的物侧面的最大有效半径DT11与所述第二透镜的像侧面的最大有效半径DT22满足0.1≤DT11/DT22≤1.6。
  12. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第一透镜的物侧面的曲率半径R1与所述第二透镜的像侧面的曲率半径R4满足0＜R1/R4＜1.5。
  13. 根据权利要求1至3中任一项所述的摄像镜头，其特征在于，所述第六透镜的像侧面的曲率半径R12满足2.5＜f/R12＜4.0。
  14. 摄像镜头，所述摄像镜头沿着光轴由物侧至像侧依序包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜和第六透镜，其特征在于，
    所述第五透镜和所述第六透镜在所述光轴上的空气间隔T56与所述第六透镜的中心厚度CT6满足0.3≤T56/CT6≤0.8。
  15. 根据权利要求14所述的摄像镜头，其特征在于，
    所述第一透镜具有正光焦度，其物侧面为凸面；
    所述第二透镜具有负光焦度，其像侧面为凹面；
    所述第三透镜具有正光焦度；
    所述第四透镜具有正光焦度或负光焦度，其像侧面为凸面；
    所述第五透镜具有正光焦度或负光焦度；以及
    所述第六透镜具有负光焦度。
  16. 根据权利要求15所述的摄像镜头，其特征在于，所述摄像镜头的总有效焦距f和入瞳直径EPD，满足f/EPD≤1.8。
  17. 根据权利要求15所述的摄像镜头，其中，所述第六透镜的像侧面在近轴处为凹面，且具有至少一个反曲点。
  18. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第一透镜的物侧面至所述摄像镜头的成像面的轴上距离TTL与所述摄像镜头的成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH≤1.6。
  19. 根据权利要求15或16所述的摄像镜头，其特征在于，在所述第一透镜与所述第二透镜之间设置有孔径光阑；以及
    其中，所述孔径光阑至所述摄像镜头的成像面的轴上距离SL与所述第一透镜的物侧面至所述摄像镜头的成像面的轴上距离TTL满足0.7≤SL/TTL≤0.9。
  20. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第一透镜的物侧面的最大有效半径DT11与所述第二透镜的像侧面的最大有效半径DT22满足0.1≤DT11/DT22≤1.6。
  21. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第一透镜的物侧面的曲率半径R1与所述第二透镜的像侧面的曲率半径R4满足0＜R1/R4＜1.5。
  22. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第一透镜的有效焦距f1与所述第三透镜的有效焦距f3满足0.2＜f1/f3＜0.8。
  23. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第一透镜的中心厚度CT1与所述第三透镜的中心厚度CT3满足1.0≤CT1/CT3≤2.0。
  24. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第三透镜的有效焦距f3与所述第四透镜的有效焦距f4满足-0.2＜f3/f4≤2.1。
  25. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第四透镜和所述第五透镜的组合焦距f45满足|f/f45|≤1.3。
  26. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第三透镜的中心厚度CT3、所述第五透镜的中心厚度CT5以及所述第六透镜的中心厚度CT6满足0.4≤CT3/(CT5+CT6)≤0.7。
  27. 根据权利要求15或16所述的摄像镜头，其特征在于，所述第六透镜的像侧面的曲率半径R12满足2.5＜f/R12＜4.0。
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