WO2019052199A1 - 摄像镜头 - Google Patents

摄像镜头 Download PDF

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Publication number
WO2019052199A1
WO2019052199A1 PCT/CN2018/085625 CN2018085625W WO2019052199A1 WO 2019052199 A1 WO2019052199 A1 WO 2019052199A1 CN 2018085625 W CN2018085625 W CN 2018085625W WO 2019052199 A1 WO2019052199 A1 WO 2019052199A1
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WIPO (PCT)
Prior art keywords
lens
imaging
optical axis
image
image pickup
Prior art date
Application number
PCT/CN2018/085625
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English (en)
French (fr)
Inventor
王新权
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.)
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Publication date
Priority claimed from CN201721167172.3U external-priority patent/CN207123645U/zh
Priority claimed from CN201710820117.8A external-priority patent/CN107462976B/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 US16/224,648 priority Critical patent/US10921559B2/en
Publication of WO2019052199A1 publication Critical patent/WO2019052199A1/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 -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only

Definitions

  • the present application relates to an imaging lens, and more particularly, to a large aperture imaging lens including five lenses.
  • the application of the lens is extended to the fields of infrared imaging, distance detection, infrared recognition and the like.
  • the conventional miniaturized imaging lens usually has a large aperture number Fno, and the amount of light entering is small, so that the accuracy of detection and recognition cannot be ensured.
  • Fno aperture number
  • the camera lens has a large aperture while ensuring a small size.
  • the present application provides a large aperture camera lens that is adaptable to at least one of the above-described disadvantages of the prior art that is applicable to portable electronic products.
  • the present application provides an imaging lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the first lens may have a positive power
  • the object side may be a convex surface
  • the image side may be a concave surface
  • the second lens and the third lens each have a positive power or a negative power
  • the fourth lens may have a positive power
  • the image side may be a convex surface
  • the fifth lens may have a negative power
  • the object side may be a concave surface
  • the effective half diameter DT52 of the fifth lens image side is half of the diagonal length of the effective pixel area on the imaging surface of the imaging lens ImgH can satisfy 0.75 ⁇ DT52/ImgH ⁇ 1.
  • the total effective focal length f of the imaging lens and the entrance pupil diameter EPD of the imaging lens may satisfy f/EPD ⁇ 1.6.
  • the effective focal length f1 of the first lens and the total effective focal length f of the imaging lens may satisfy 1.4 ⁇ f1/f ⁇ 2.
  • the radius of curvature R1 of the side surface of the first lens object and the radius of curvature R2 of the side surface of the first lens image may satisfy -5 ⁇ (R1+R2)/(R1-R2) ⁇ -3.
  • the radius of curvature R8 of the side surface of the fourth lens image and the radius of curvature R9 of the side surface of the fifth lens object may satisfy 1.2 ⁇ R8/R9 ⁇ 3.5.
  • the radius of curvature R9 of the side surface of the fifth lens object and the effective focal length f5 of the fifth lens may satisfy 0 ⁇ R9/f5 ⁇ 0.8.
  • the radius of curvature R9 of the side surface of the fifth lens object and the total effective focal length f of the image pickup lens may satisfy R9/f>-0.5.
  • the center thickness CT1 of the first lens on the optical axis and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.6 ⁇ CT1/CT4 ⁇ 1.1.
  • the center thickness CT3 of the third lens on the optical axis and the center thickness CT5 of the fifth lens on the optical axis may satisfy 0.8 ⁇ CT3/CT5 ⁇ 1.2.
  • the separation distance T12 of the first lens and the second lens on the optical axis, the separation distance T23 of the second lens and the third lens on the optical axis, and the third lens and the fourth lens on the optical axis can satisfy 0.1 ⁇ T34/(T12+T23) ⁇ 0.5.
  • the on-axis distance TTL of the object side of the first lens to the imaging plane of the imaging lens is half the ImgH of the diagonal length of the effective pixel area on the imaging surface of the imaging lens, which can satisfy TTL/ImgH ⁇ 1.6.
  • the intersection between the intersection of the object side surface and the optical axis of the fifth lens and the effective half-diameter apex of the object side of the fifth lens on the optical axis SAG51 and the intersection of the image side and the optical axis of the fifth lens The distance SAG52 on the optical axis between the effective half-caliber apexes of the image side of the five lenses satisfies 0.8 ⁇ SAG51/SAG52 ⁇ 1.8.
  • the first lens may be a glass material lens having a coefficient of thermal expansion TCE1 satisfying TCE1 ⁇ 15 ⁇ 10 -6 /°C.
  • the present application further provides an imaging lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the object side surface of the first lens may be a convex surface, and the image side surface may be a concave surface; at least one of the object side surface and the image side surface of the second lens may be a convex surface; at least one of the object side surface and the image side surface of the third lens may be a concave surface;
  • the fourth lens may have a positive power, and the image side may be a convex surface; the fifth lens has a negative power, and the object side may be a concave surface.
  • the intersection between the intersection of the object side surface and the optical axis of the fifth lens and the effective half-diameter apex of the object side of the fifth lens on the optical axis SAG51 and the intersection of the image side surface of the fifth lens and the optical axis to the image of the fifth lens The distance SAG52 on the optical axis between the apexes of the effective half-caliber of the side can satisfy 0.8 ⁇ SAG51/SAG52 ⁇ 1.8.
  • the first lens can have positive power.
  • the present application further provides an imaging lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the first lens may have a positive power
  • the object side may be a convex surface
  • the image side may be a concave surface
  • the second lens and the third lens each have a positive power or a negative power
  • the fourth lens may have a positive power
  • the image side may be a convex surface
  • the fifth lens may have a negative power
  • the object side may be a concave surface
  • the total effective focal length f of the imaging lens and the entrance pupil diameter EPD of the imaging lens can satisfy f/EPD ⁇ 1.6
  • the on-axis distance TTL of the object side of the lens to the imaging surface of the imaging lens is half the ImgH of the diagonal length of the effective pixel area on the imaging surface of the imaging lens, which can satisfy TTL/ImgH ⁇ 1.6
  • the imaging lens By reasonably assigning the power of each lens, the surface shape, the center thickness of each lens, and the on-axis spacing between the lenses, the imaging lens has a small image, low sensitivity, and large aperture while achieving good image quality. Wait for at least one beneficial effect.
  • FIG. 1 is a schematic structural view of an image pickup 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 imaging lens of Embodiment 1;
  • FIG. 3 is a schematic structural diagram of an image pickup 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 imaging lens of Embodiment 2;
  • FIG. 5 is a schematic structural diagram of an image pickup 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 imaging lens of Embodiment 3;
  • FIG. 7 is a schematic structural diagram of an image pickup 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 imaging lens of Embodiment 4;
  • FIG. 9 is a schematic structural diagram of an image pickup 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 imaging lens of Embodiment 5;
  • FIG. 11 is a schematic structural diagram of an image pickup lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the imaging lens of Example 6.
  • first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature.
  • first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
  • the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation.
  • the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings.
  • the drawings are only examples and are not to scale.
  • a 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 imaging lens includes, for example, five lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the five lenses are sequentially arranged from the object side to the image side along the optical axis.
  • the image pickup lens may further include a photosensitive member disposed on the image forming surface.
  • the first lens may have a positive power, the object side may be a convex surface, and the image side may be a concave surface.
  • the effective focal length f1 of the first lens and the total effective focal length f of the imaging lens may satisfy 1.4 ⁇ f1/f ⁇ 2, and more specifically, f1 and f may further satisfy 1.43 ⁇ f1/f ⁇ 1.74. Satisfying the conditional expression 1.4 ⁇ f1/f ⁇ 2 is advantageous for shortening the total length of the imaging system.
  • the radius of curvature R1 of the side surface of the first lens object and the radius of curvature R2 of the side surface of the first lens image may satisfy -5 ⁇ (R1+R2)/(R1-R2) ⁇ -3, and more specifically, R1 and R2 may further It satisfies -4.48 ⁇ (R1 + R2) / (R1 - R2) ⁇ -3.17. Satisfying the conditional expression -5 ⁇ (R1 + R2) / (R1 - R2) ⁇ -3 helps to control the spherical aberration generated by the first lens within a reasonable range; at the same time, it is advantageous to shorten the total length of the imaging system.
  • the first lens may be a glass lens having a coefficient of thermal expansion TCE1 satisfying TCE1 ⁇ 15 ⁇ 10 -6 / ° C.
  • Glass material usually has a high refractive index.
  • the use of glass material can slow the bending of the lens surface, which is beneficial to the manufacturing process of the lens.
  • the temperature index coefficient of the glass material changes little, in the application where the ambient temperature changes.
  • the use of a glass lens helps to maintain the stability of the image surface and contributes to the improvement of the heat resistance of the imaging system.
  • the second lens has a positive power or a negative power, and at least one of the object side and the image side may be convex.
  • the third lens has a positive power or a negative power, and at least one of the object side and the image side may be a concave surface.
  • the third lens may have a negative power and the image side may be a concave surface.
  • the fourth lens may have a positive power, the object side may be a convex surface, and the image side may be a convex surface.
  • the fifth lens may have a negative power and the object side may be a concave surface.
  • the radius of curvature R8 of the side surface of the fourth lens image and the radius of curvature R9 of the side surface of the fifth lens object may satisfy 1.2 ⁇ R8 / R9 ⁇ 3.5, and more specifically, R8 and R9 may further satisfy 1.23 ⁇ R8 / R9 ⁇ 2.25. Satisfying the conditional expression 1.2 ⁇ R8/R9 ⁇ 3.5 is advantageous for correcting the astigmatism generated by the optical imaging system and reducing the aberration.
  • the radius of curvature R9 of the side surface of the fifth lens object and the effective focal length f5 of the fifth lens may satisfy 0 ⁇ R9 / f5 ⁇ 0.8, and more specifically, R9 and f5 may further satisfy 0.52 ⁇ R9 / f5 ⁇ 0.62. Satisfying the conditional expression 0 ⁇ R9/f5 ⁇ 0.8 is advantageous for the processing of the lens and shortening the optical total length of the imaging system.
  • the radius of curvature R9 of the side surface of the fifth lens object and the total effective focal length f of the image pickup lens may satisfy R9/f>-0.5, and more specifically, R9 and f may further satisfy -0.42 ⁇ R9/f ⁇ -0.38. Satisfying the conditional expression R9/f>-0.5 is advantageous for the side imaging to move toward the side of the object, thereby facilitating shortening of the optical total length of the imaging system, so that the system has miniaturization characteristics.
  • the effective half-diameter DT52 of the side of the fifth lens image satisfies 0.75 ⁇ DT52/ImgH ⁇ 1 between the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging lens, and more specifically, DT52 and ImgH can further satisfy 0.81. ⁇ DT52 / ImgH ⁇ 0.90. Satisfying the conditional expression 0.75 ⁇ DT52/ImgH ⁇ 1 is advantageous for the processing of the fifth lens and is advantageous for shortening the optical total length of the imaging system.
  • the center thickness of each lens and the separation distance between the lenses can also be optimized to enhance the optical performance of the lens.
  • the center thickness CT1 of the first lens on the optical axis and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.6 ⁇ CT1/CT4 ⁇ 1.1, and more specifically, CT1 and CT4 may further satisfy 0.65 ⁇ CT1/CT4. ⁇ 1.09. Satisfying the conditional expression 0.6 ⁇ CT1/CT4 ⁇ 1.1 is beneficial to the dispersion of the system power, which is beneficial to the processing of the lens and also helps to reduce the tolerance sensitivity of the imaging system.
  • the center thickness CT3 of the third lens on the optical axis and the center thickness CT5 of the fifth lens on the optical axis may satisfy 0.8 ⁇ CT3/CT5 ⁇ 1.2, and more specifically, CT3 and CT5 may further satisfy 0.88 ⁇ CT3/CT5. ⁇ 1.16. Satisfying the conditional formula 0.8 ⁇ CT3/CT5 ⁇ 1.2, it is beneficial to the reasonable distribution of the space on the shaft, so as to better balance the processing of the lens and the total optical length of the imaging system, so that the lens can have good processing properties. Possible short optical total length.
  • the separation distance T12 of the first lens and the second lens on the optical axis, the separation distance T23 of the second lens and the third lens on the optical axis, and the separation distance T34 of the third lens and the fourth lens on the optical axis may be It satisfies 0.1 ⁇ T34 / (T12 + T23) ⁇ 0.5, and more specifically, T12, T23, and T34 can further satisfy 0.11 ⁇ T34 / (T12 + T23) ⁇ 0.32. Satisfying the conditional formula 0.1 ⁇ T34/(T12+T23) ⁇ 0.5 is beneficial to the assembly of the lens, thereby facilitating the improvement of the lens production yield and the shortening of the total optical length of the system.
  • the total effective focal length f of the imaging lens and the entrance pupil diameter EPD of the imaging lens can satisfy f/EPD ⁇ 1.6, and more specifically, f and EPD can further satisfy 1.26 ⁇ f / EPD ⁇ 1.38. Satisfying the conditional expression f/EPD ⁇ 1.6 can effectively improve the image surface energy density on the imaging surface, thereby improving the signal-to-noise ratio of the image sensor output signal, that is, improving the infrared imaging quality or identifying the detection accuracy.
  • the camera lens may further include a filter, and the filter may be an infrared band pass filter.
  • the above-described image pickup lens may further include a cover glass for protecting the photosensitive member on the image forming surface.
  • the image pickup lens according to the above embodiment of the present application may employ a plurality of lenses, such as the five sheets described above.
  • a plurality of lenses such as the five sheets described above.
  • the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved.
  • the imaging lens of the above configuration has the beneficial effects such as large aperture and high imaging quality, and can be preferably applied to fields such as infrared detection and recognition.
  • At least one of the mirror faces of each lens is an aspherical mirror.
  • the aspherical lens is characterized by a continuous change in curvature from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving distortion and improving astigmatic aberration. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality.
  • the image pickup lens is not limited to including five lenses.
  • the camera lens can also include other numbers of lenses if desired.
  • FIG. 1 is a block diagram showing the structure of an image pickup lens according to Embodiment 1 of the present application.
  • the imaging lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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:
  • x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the a-th order of the aspherical surface.
  • Table 2 gives the higher order coefficient A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 which can be used for each aspherical mirror surface S1-S10 in the embodiment 1. .
  • Table 3 below gives the total effective focal length f of the imaging lens of Embodiment 1, the effective focal lengths f1 to f5 of the respective lenses, and the optical total length TTL of the imaging lens (i.e., from the object side S1 of the first lens L1 to the imaging plane S13) The distance on the optical axis) and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens, ImgH.
  • 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 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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 coefficient which can be used for each aspherical mirror in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 6 shows the total effective focal length f of the imaging lens of Embodiment 2, the effective focal lengths f1 to f5 of the respective lenses, the optical total length TTL of the imaging lens, and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens ImgH .
  • 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 can achieve 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 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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 which can be used for the respective aspherical mirrors in Embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 9 shows the total effective focal length f of the imaging lens of Embodiment 3, the effective focal lengths f1 to f5 of the respective lenses, the optical total length TTL of the imaging lens, and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens ImgH .
  • Fig. 6A shows an axial chromatic aberration curve of the image pickup lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after passing through 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 can achieve 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 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a convex surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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 coefficient which can be used for each aspherical mirror in Embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 12 shows the total effective focal length f of the imaging lens of Embodiment 4, the effective focal lengths f1 to f5 of the respective lenses, the optical total length TTL of the imaging lens, and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens ImgH .
  • 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 can achieve 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 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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 coefficient which can be used for each aspherical mirror surface in Embodiment 5, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 15 shows the total effective focal length f of the imaging lens of Embodiment 5, the effective focal lengths f1 to f5 of the respective lenses, the optical total length TTL of the imaging lens, and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens ImgH .
  • 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 can achieve 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 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface S13 from the object side to the imaging side along the optical axis.
  • the first lens L1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens L2 has a positive refractive power
  • the object side surface S3 is a concave surface
  • the image side surface S4 is a convex surface
  • the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens L3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens L4 has a positive refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a convex surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens L5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the imaging lens may further include a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a filter L6 having an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging plane S13.
  • a stop STO may be disposed between the object side and the first lens L1 to improve the image quality of the image pickup lens.
  • 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 coefficient which can be used for each aspherical mirror surface in Embodiment 6, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 18 shows the total effective focal length f of the imaging lens of Embodiment 6, the effective focal lengths f1 to f5 of the respective lenses, the optical total length TTL of the imaging lens, and the half of the diagonal length of the effective pixel area on the imaging plane S13 of the imaging lens ImgH .
  • 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 can achieve good imaging quality.
  • Embodiments 1 to 6 respectively satisfy the relationships shown in Table 19 below.
  • the application also provides an imaging device, the electronic photosensitive element of which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the 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 or a tablet computer.
  • the image pickup apparatus is equipped with the image pickup lens described above.

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Abstract

一种摄像镜头，摄像镜头沿光轴由物侧至像侧依序包括：第一透镜(L1)、第二透镜(L2)、第三透镜(L3)、第四透镜(L4)和第五透镜(L5)。第一透镜(L1)具有正光焦度，其物侧面(S1)为凸面，像侧面(S2)为凹面；第二透镜(L2)和第三透镜(L3)均具有正光焦度或负光焦度；第四透镜(L4)具有正光焦度，其像侧面(S8)为凸面；第五透镜(L5)具有负光焦度，其物侧面(S9)为凹面；其中，第五透镜(L5)像侧面(S10)的有效半口径DT52与摄像镜头成像面上有效像素区域对角线长的一半ImgH满足0.75＜DT52/ImgH＜1。

Description

摄像镜头
相关申请的交叉引用
本申请要求于2017年9月13日提交于中国国家知识产权局(SIPO)的、专利申请号为201710820117.8的中国专利申请以及于2017年9月13日提交至SIPO的、专利申请号为201721167172.3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，更具体地，本申请涉及一种包括五片透镜的大孔径摄像镜头。
背景技术
随着例如感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)等常用感光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。
同时，随着常用感光元件能够在红外光范围使用，而将镜头的应用扩展到红外成像、距离探测、红外识别等领域。现有的小型化摄像镜头通常具有较大的光圈数Fno，进光量偏小，因而无法保证探测、识别的精度。为了更好地满足探测、识别等领域对镜头的要求，还需要摄像镜头在保证小尺寸的同时具有较大孔径。
发明内容
本申请提供了可适用于便携式电子产品的、可至少解决或部分解决现有技术中的上述至少一个缺点的大孔径摄像镜头。
一方面，本申请提供了这样一种摄像镜头，该摄像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。第一透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凹面；第二透镜和第三透镜均具有正光焦度或负光焦度；第四透镜 可具有正光焦度，其像侧面可为凸面；第五透镜可具有负光焦度，其物侧面可为凹面；其中，第五透镜像侧面的有效半口径DT52与摄像镜头成像面上有效像素区域对角线长的一半ImgH可满足0.75＜DT52/ImgH＜1。
在一个实施方式中，摄像镜头的总有效焦距f与摄像镜头的入瞳直径EPD可满足f/EPD＜1.6。
在一个实施方式中，第一透镜的有效焦距f1与摄像镜头的总有效焦距f可满足1.4＜f1/f＜2。
在一个实施方式中，第一透镜物侧面的曲率半径R1与第一透镜像侧面的曲率半径R2可满足-5＜(R1+R2)/(R1-R2)＜-3。
在一个实施方式中，第四透镜像侧面的曲率半径R8与第五透镜物侧面的曲率半径R9可满足1.2＜R8/R9＜3.5。
在一个实施方式中，第五透镜物侧面的曲率半径R9与第五透镜的有效焦距f5可满足0＜R9/f5＜0.8。
在一个实施方式中，第五透镜物侧面的曲率半径R9与摄像镜头的总有效焦距f可满足R9/f＞-0.5。
在一个实施方式中，第一透镜于光轴上的中心厚度CT1与第四透镜于光轴上的中心厚度CT4可满足0.6＜CT1/CT4＜1.1。
在一个实施方式中，第三透镜于光轴上的中心厚度CT3与第五透镜于光轴上的中心厚度CT5可满足0.8＜CT3/CT5＜1.2。
在一个实施方式中，第一透镜和第二透镜在光轴上的间隔距离T12、第二透镜和第三透镜在光轴上的间隔距离T23以及第三透镜和第四透镜在光轴上的间隔距离T34可满足0.1＜T34/(T12+T23)＜0.5。
在一个实施方式中，第一透镜的物侧面至摄像镜头成像面的轴上距离TTL与摄像镜头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。
在一个实施方式中，第五透镜的物侧面和光轴的交点至第五透镜的物侧面的有效半口径顶点之间在光轴上的距离SAG51与第五透镜的像侧面和光轴的交点至第五透镜的像侧面的有效半口径顶点之间在光轴上的距离SAG52可满足0.8＜SAG51/SAG52＜1.8。
在一个实施方式中，第一透镜可为玻璃材质的透镜，其热膨胀系数TCE1可满足TCE1＜15×10 -6/℃。
另一方面，本申请还提供了这样一种摄像镜头，该摄像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。第一透镜的物侧面可为凸面，像侧面可为凹面；第二透镜的物侧面和像侧面中的至少一个可为凸面；第三透镜的物侧面和像侧面中的至少一个可为凹面；第四透镜可具有正光焦度，其像侧面可为凸面；第五透镜具有负光焦度，其物侧面可为凹面。其中，第五透镜的物侧面和光轴的交点至第五透镜的物侧面的有效半口径顶点之间在光轴上的距离SAG51与第五透镜的像侧面和光轴的交点至第五透镜的像侧面的有效半口径顶点之间在光轴上的距离SAG52可满足0.8＜SAG51/SAG52＜1.8。
在一个实施方式中，第一透镜可具有正光焦度。
另一方面，本申请还提供了这样一种摄像镜头，该摄像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。第一透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凹面；第二透镜和第三透镜均具有正光焦度或负光焦度；第四透镜可具有正光焦度，其像侧面可为凸面；第五透镜可具有负光焦度，其物侧面可为凹面；其中，摄像镜头的总有效焦距f与摄像镜头的入瞳直径EPD可满足f/EPD＜1.6；第一透镜的物侧面至摄像镜头成像面的轴上距离TTL与摄像镜头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。
通过合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，使得摄像镜头在实现良好成像质量的同时，具有小型化、低敏感度、大孔径等至少一个有益效果。
附图说明
结合附图，通过以下非限制性实施方式的详细描述，本申请的其他特征、目的和优点将变得更加明显。在附图中：
图1示出了根据本申请实施例1的摄像镜头的结构示意图；
图2A至图2D分别示出了实施例1的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图3示出了根据本申请实施例2的摄像镜头的结构示意图；
图4A至图4D分别示出了实施例2的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图5示出了根据本申请实施例3的摄像镜头的结构示意图；
图6A至图6D分别示出了实施例3的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图7示出了根据本申请实施例4的摄像镜头的结构示意图；
图8A至图8D分别示出了实施例4的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图9示出了根据本申请实施例5的摄像镜头的结构示意图；
图10A至图10D分别示出了实施例5的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图11示出了根据本申请实施例6的摄像镜头的结构示意图；
图12A至图12D分别示出了实施例6的摄像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线。
具体实施方式
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意，在本说明书中，第一、第二、第三等的表述仅用于将一个特征与另一个特征区分开来，而不表示对特征的任何限制。因此，在不背离本申请的教导的情况下，下文中讨论的第一透镜也可被称作第二透镜或第三透镜。
在附图中，为了便于说明，已稍微夸大了透镜的厚度、尺寸和形状。具体来讲，附图中所示的球面或非球面的形状通过示例的方式示 出。即，球面或非球面的形状不限于附图中示出的球面或非球面的形状。附图仅为示例而并非严格按比例绘制。
在本文中，近轴区域是指光轴附近的区域。若透镜表面为凸面且未界定该凸面位置时，则表示该透镜表面至少于近轴区域为凸面；若透镜表面为凹面且未界定该凹面位置时，则表示该透镜表面至少于近轴区域为凹面。每个透镜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。
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、元件和/或部件，但不排除存在或附加有一个或多个其它特征、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
以下对本申请的特征、原理和其他方面进行详细描述。
根据本申请示例性实施方式的摄像镜头包括例如五个具有光焦度的透镜，即第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。这五个透镜沿着光轴从物侧至像侧依序排列。该摄像镜头还可进一步包括设置于成像面的感光元件。
第一透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凹面。通过对第一透镜光焦度和面型的合理布置，有助于校正成像系统球差， 缩短成像系统的光学总长度。
第一透镜的有效焦距f1与摄像镜头的总有效焦距f之间可满足1.4＜f1/f＜2，更具体地，f1和f进一步可满足1.43≤f1/f≤1.74。满足条件式1.4＜f1/f＜2，有利于缩短成像系统的总长。
第一透镜物侧面的曲率半径R1和第一透镜像侧面的曲率半径R2之间可满足-5＜(R1+R2)/(R1-R2)＜-3，更具体地，R1和R2进一步可满足-4.48≤(R1+R2)/(R1-R2)≤-3.17。满足条件式-5＜(R1+R2)/(R1-R2)＜-3，有助于将第一透镜所产生的球差控制在合理范围内；同时，有利于缩短成像系统的总长。
第一透镜可为玻璃材质的透镜，其热膨胀系数TCE1可满足TCE1＜15×10 -6/℃。玻璃材质通常具有较高的折射率，使用玻璃材质可以减缓透镜表面的弯曲程度，从而有利于透镜的制造加工；同时，玻璃材质的温度折射率系数变化较小，在环境温度发生变化的应用中，使用玻璃材质的透镜有利于保持像面的稳定，有利于提高成像系统的耐热性。
第二透镜具有正光焦度或负光焦度，其物侧面和像侧面中的至少一个可为凸面。
第三透镜具有正光焦度或负光焦度，其物侧面和像侧面中的至少一个可为凹面。可选地，第三透镜可具有负光焦度，其像侧面可为凹面。
第四透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凸面。通过对第四透镜光焦度和面型的合理布置，有利于分散成像系统的光焦度，降低成像系统的公差敏感度。
第五透镜可具有负光焦度，其物侧面可为凹面。通过对第五透镜光焦度和面型的合理布置，有利于缩短成像系统的总长，进而实现小型化。
第四透镜像侧面的曲率半径R8与第五透镜物侧面的曲率半径R9之间可满足1.2＜R8/R9＜3.5，更具体地，R8和R9进一步可满足1.23≤R8/R9≤2.25。满足条件式1.2＜R8/R9＜3.5，有利于校正光学成像系统所产生的像散，减小像差。
第五透镜物侧面的曲率半径R9与第五透镜的有效焦距f5之间可满足0＜R9/f5＜0.8，更具体地，R9和f5进一步可满足0.52≤R9/f5≤0.62。满足条件式0＜R9/f5＜0.8，有利于透镜的加工成型和缩短成像系统的光学总长。
第五透镜物侧面的曲率半径R9与摄像镜头的总有效焦距f之间可满足R9/f＞-0.5，更具体地，R9和f进一步可满足-0.42≤R9/f≤-0.38。满足条件式R9/f＞-0.5，有利于像侧方成像面向物侧方的移动，从而有利于缩短成像系统的光学总长，使得系统具有小型化特性。
第五透镜像侧面的有效半口径DT52与摄像镜头的成像面上有效像素区域对角线长的一半ImgH之间可满足0.75＜DT52/ImgH＜1，更具体地，DT52和ImgH进一步可满足0.81≤DT52/ImgH≤0.90。满足条件式0.75＜DT52/ImgH＜1，有利于第五透镜的加工成型，并有利于缩短成像系统的光学总长。
第五透镜物侧面和光轴的交点至第五透镜物侧面的有效半口径顶点的轴上距离SAG51与第五透镜像侧面和光轴的交点至第五透镜像侧面的有效半口径顶点的轴上距离SAG52之间可满足0.8＜SAG51/SAG52＜1.8，更具体地，SAG51和SAG52进一步可满足0.95≤SAG51/SAG52≤1.77。满足条件式0.8＜SAG51/SAG52＜1.8，有利于镜片的加工成型，并有利于镜头的小型化。
在应用中，还可对各透镜的中心厚度以及各透镜间的间隔距离进行优化，以提升镜头的光学性能。
第一透镜于光轴上的中心厚度CT1与第四透镜于光轴上的中心厚度CT4之间可满足0.6＜CT1/CT4＜1.1，更具体地，CT1和CT4进一步可满足0.65≤CT1/CT4≤1.09。满足条件式0.6＜CT1/CT4＜1.1，有利于系统光焦度的分散，有利于透镜的加工成型，还有利于降低成像系统的公差敏感性。
第三透镜于光轴上的中心厚度CT3与第五透镜于光轴上的中心厚度CT5之间可满足0.8＜CT3/CT5＜1.2，更具体地，CT3和CT5进一步可满足0.88≤CT3/CT5≤1.16。满足条件式0.8＜CT3/CT5＜1.2，有利于轴上空间的合理分配，从而较好地平衡镜片的加工成型和成像系 统光学总长这两方面，使得镜头能够在具有良好加工性的同时具有尽可能短的光学总长度。
第一透镜和第二透镜在光轴上的间隔距离T12、第二透镜和第三透镜在光轴上的间隔距离T23以及第三透镜和第四透镜在光轴上的间隔距离T34之间可满足0.1＜T34/(T12+T23)＜0.5，更具体地，T12、T23和T34进一步可满足0.11≤T34/(T12+T23)≤0.32。满足条件式0.1＜T34/(T12+T23)＜0.5，有利于透镜的组装，从而有利于镜头生产良率的提升以及系统光学总长的缩短。
摄像镜头的总有效焦距f与摄像镜头的入瞳直径EPD之间可满足f/EPD＜1.6，更具体地，f和EPD进一步可满足1.26≤f/EPD≤1.38。满足条件式f/EPD＜1.6，可以有效地提升成像面上的像面能量密度，进而提高像方传感器输出信号的信噪比，即，提高红外成像质量或识别探测精度。
可选地，上述摄像镜头还可包括滤光片，滤光片可为红外带通滤光片。
可选地，上述摄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。
根据本申请的上述实施方式的摄像镜头可采用多片镜片，例如上文所述的五片。通过合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，可有效地减小镜头的体积、降低镜头的敏感度并提高镜头的可加工性，使得摄像镜头更有利于生产加工并且可适用于便携式电子产品。同时，通过上述配置的摄像镜头，还具有例如大孔径、高成像品质等有益效果，能够较好的应用于红外探测、识别等领域。
在本申请的实施方式中，各透镜的镜面中的至少一个为非球面镜面。非球面透镜的特点是：从透镜中心到透镜周边，曲率是连续变化的。与从透镜中心到透镜周边具有恒定曲率的球面透镜不同，非球面透镜具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。采用非球面透镜后，能够尽可能地消除在成像的时候出现的像差，从而改善成像质量。
然而，本领域的技术人员应当理解，在未背离本申请要求保护的技术方案的情况下，可改变构成摄像镜头的透镜数量，来获得本说明书中描述的各个结果和优点。例如，虽然在实施方式中以五个透镜为例进行了描述，但是该摄像镜头不限于包括五个透镜。如果需要，摄像镜头还可包括其它数量的透镜。
下面参照附图进一步描述可适用于上述实施方式的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。图1示出了根据本申请实施例1的摄像镜头的结构示意图。
如图1所示，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝6.50×10 -6/℃。
第二透镜L2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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 PCTCN2018085625-appb-000001
表1
由表1可知，第一透镜L1物侧面S1的曲率半径R1与第一透镜L1像侧面S2的曲率半径R2之间满足(R1+R2)/(R1-R2)＝-4.48；第四透镜L4像侧面S8的曲率半径R8与第五透镜L5物侧面S9的曲率半径R9之间满足R8/R9＝1.75；第一透镜L1于光轴上的中心厚度CT1与第四透镜L4于光轴上的中心厚度CT4之间满足CT1/CT4＝0.96；第三透镜L3于光轴上的中心厚度CT3与第五透镜L5于光轴上的中心厚度CT5之间满足CT3/CT5＝1.03；第一透镜L1和第二透镜L2在光轴上的间隔距离T12、第二透镜L2和第三透镜L3在光轴上的间隔距离T23以及第三透镜L3和第四透镜L4在光轴上的间隔距离T34之间满足T34/(T12+T23)＝0.27。
在本实施例中，各非球面面型x由以下公式限定：
Figure PCTCN2018085625-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(在表1中已给出)；Ai是非球面第i-th阶的修正系数。下表2给出了可用于实施例1中各非球面镜面S1-S10的高次项系数A 4、A 6、A 8、A 10、A 12、A 14、A 16、A 18和A 20。
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.7023E-03 2.3208E-03 -1.7264E-03 2.6033E-04 1.0806E-04 -2.6534E-05 -1.0213E-05 0.0000E+00 0.0000E+00
S2 -1.3894E-04 -7.8632E-03 4.9290E-03 -2.4302E-03 2.0504E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 -8.3620E-03 -4.9907E-02 5.9183E-02 -5.1623E-02 2.3988E-02 -6.0692E-03 5.8357E-04 0.0000E+00 0.0000E+00
S4 -2.9484E-02 1.7080E-02 -3.2490E-02 2.2400E-02 -1.0689E-02 2.7910E-03 -3.0149E-04 0.0000E+00 0.0000E+00
S5 -1.1570E-01 1.2672E-01 -1.1433E-01 6.1601E-02 -1.8420E-02 2.0905E-03 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.5755E-01 7.7283E-02 8.3797E-03 -6.1712E-02 4.6558E-02 -1.5156E-02 1.7308E-03 1.3237E-04 -3.0833E-05
S7 -8.9066E-02 4.1769E-02 -3.2736E-02 1.7530E-02 -6.5927E-03 1.3509E-03 -1.0931E-04 0.0000E+00 0.0000E+00
S8 1.6309E-02 -2.0132E-03 1.5360E-04 8.3524E-05 1.4589E-05 -3.6784E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 2.1370E-02 7.3852E-04 -6.5440E-05 -1.2698E-05 8.2656E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 -3.8646E-03 2.3051E-03 -7.9045E-04 9.1052E-05 -4.7846E-06 9.5023E-08 0.0000E+00 0.0000E+00 0.0000E+00
表2
下表3给出实施例1的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1至成像面S13在光轴上的距离)以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000003
表3
在实施例1中，第一透镜L1的有效焦距f1与摄像镜头的总有效焦距f之间满足f1/f＝1.74；摄像镜头的光学总长度TTL与摄像镜头成像面S13上有效像素区域对角线长的一半ImgH之间满足TTL/ImgH＝1.39；第五透镜L5的物侧面S9的曲率半径R9与摄像镜头的总有效焦距f之间满足R9/f＝-0.38；第五透镜L5的物侧面S9的曲率半径R9与第五透镜L5的有效焦距f5之间满足R9/f5＝0.52；摄像镜头的总有效焦距f与摄像镜头的入瞳直径EPD之间满足f/EPD＝1.30； 第五透镜L5像侧面S10的有效半口径DT52与摄像镜头成像面S13上有效像素区域对角线长的一半ImgH之间满足DT52/ImgH＝0.85；第五透镜L5物侧面S9和光轴的交点至第五透镜L5物侧面S9的有效半口径顶点的轴上距离SAG51与第五透镜L5像侧面S10和光轴的交点至第五透镜L5像侧面S10的有效半口径顶点的轴上距离SAG52之间满足SAG51/SAG52＝1.01。
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，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝3.00×10 -6/℃。
第二透镜L2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凹面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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示出了可用于实施例2中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表6示出了实施例2的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000004
表4
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.5189E-03 3.1475E-03 -1.7389E-03 1.3535E-04 1.1388E-04 -2.6022E-06 -9.2316E-06 0.0000E+00 0.0000E+00
S2 3.3538E-03 -7.6042E-03 5.4054E-03 -2.1681E-03 2.0824E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 -3.1686E-03 -4.9523E-02 5.9290E-02 -5.0635E-02 2.4109E-02 -6.0651E-03 5.8357E-04 0.0000E+00 0.0000E+00
S4 -3.0532E-02 1.5141E-02 -1.9576E-02 1.0466E-02 -4.1370E-03 9.1558E-04 -8.4440E-05 0.0000E+00 0.0000E+00
S5 -8.9103E-02 8.1498E-02 -5.8791E-02 2.4212E-02 -5.8475E-03 5.6344E-04 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.0768E-01 6.9169E-03 6.0429E-02 -6.8698E-02 3.7333E-02 -1.1544E-02 2.0262E-03 -1.8421E-04 6.7776E-06
S7 -1.0115E-01 5.0621E-02 -3.3714E-02 1.4123E-02 -3.8113E-03 5.8188E-04 -3.7362E-05 0.0000E+00 0.0000E+00
S8 1.8898E-02 -2.7259E-03 5.9233E-05 7.7954E-05 1.5994E-05 -3.0056E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 1.8593E-02 1.0344E-03 -5.1294E-05 -1.2232E-05 7.8180E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 -7.1029E-03 2.3984E-03 -7.5319E-04 8.8979E-05 -4.8672E-06 1.0435E-07 0.0000E+00 0.0000E+00 0.0000E+00
表5
Figure PCTCN2018085625-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所给出的摄像镜头能够实现良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的摄像镜头。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，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝0.50×10 -6/℃。
第二透镜L2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凸面，像侧面S6为 凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凹面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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示出了可用于实施例3中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表9示出了实施例3的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000006
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.7247E-03 2.2076E-03 -1.6798E-03 2.7553E-04 9.4448E-05 -2.7914E-05 -1.0213E-05 0.0000E+00 0.0000E+00
S2 -4.3739E-04 -8.0688E-03 4.9547E-03 -2.4407E-03 2.1139E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 -1.1094E-02 -4.9746E-02 5.9116E-02 -5.1933E-02 2.4005E-02 -6.0692E-03 5.8357E-04 0.0000E+00 0.0000E+00
S4 -3.7454E-02 2.7812E-02 -4.6799E-02 3.2292E-02 -1.4765E-02 3.7005E-03 -3.8599E-04 0.0000E+00 0.0000E+00
S5 -1.1469E-01 1.2279E-01 -1.0802E-01 5.6497E-02 -1.6671E-02 1.8572E-03 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.7100E-01 1.3112E-01 -1.0245E-01 6.4800E-02 -3.6412E-02 1.6617E-02 -5.1973E-03 9.0838E-04 -6.3376E-05
S7 -9.5150E-02 4.9101E-02 -3.8285E-02 1.8194E-02 -5.7016E-03 9.7146E-04 -6.5586E-05 0.0000E+00 0.0000E+00
S8 1.7033E-02 -1.7585E-03 1.7441E-04 8.4306E-05 1.4191E-05 -3.5855E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 2.1305E-02 6.8609E-04 -6.8622E-05 -1.2713E-05 8.4420E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 -3.7668E-03 2.0784E-03 -7.7393E-04 9.2536E-05 -4.7795E-06 8.7964E-08 0.0000E+00 0.0000E+00 0.0000E+00
表8
Figure PCTCN2018085625-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所给出的摄像镜头能够实现良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的摄像镜头。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，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝-3.00×10 -6/℃。
第二透镜L2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凹面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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示出了可用于实施例4中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表12示出了实施例4的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000008
Figure PCTCN2018085625-appb-000009
表10
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -6.6359E-03 2.2875E-03 -2.7411E-03 7.7598E-04 -7.2832E-05 1.6791E-06 -9.3473E-06 0.0000E+00 0.0000E+00
S2 -3.9819E-04 2.7714E-03 -6.1401E-03 3.7480E-03 -1.0730E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 -1.8668E-02 -1.7575E-02 2.3595E-02 -3.1321E-02 1.9495E-02 -6.0733E-03 5.8139E-04 0.0000E+00 0.0000E+00
S4 -5.1407E-02 3.4958E-02 -3.6453E-02 1.5422E-02 -3.2602E-03 1.3344E-04 3.2435E-05 0.0000E+00 0.0000E+00
S5 -9.0619E-02 6.2510E-02 -3.5156E-02 1.1791E-02 -2.9736E-03 2.8392E-04 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.4831E-01 5.5418E-02 2.3494E-02 -6.6635E-02 5.4958E-02 -2.4255E-02 5.9338E-03 -7.4751E-04 3.7710E-05
S7 -5.0370E-02 -2.2222E-02 4.1881E-02 -3.4812E-02 1.4275E-02 -2.9437E-03 2.3943E-04 0.0000E+00 0.0000E+00
S8 4.5015E-02 -8.2903E-03 4.2215E-04 3.5802E-05 -2.6671E-05 4.0924E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 2.4595E-02 -4.8602E-05 1.2046E-04 -4.2983E-06 -2.8682E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 -1.5663E-02 4.5250E-03 -1.1757E-03 1.1989E-04 -5.1814E-06 8.2224E-08 0.0000E+00 0.0000E+00 0.0000E+00
表11
Figure PCTCN2018085625-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所给出的摄像镜头能够实现良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的摄像镜头。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，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝6.10×10 -6/℃。
第二透镜L2具有正光焦度，其物侧面S3为凸面，像侧面S4为凹面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凹面，像侧面S6为凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凹面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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示出了可用于实施例5中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表15示出了实施例5的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000011
Figure PCTCN2018085625-appb-000012
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 7.4481E-03 2.3695E-03 -1.7102E-03 2.7989E-04 1.0517E-04 -3.9246E-05 -1.0213E-05 0.0000E+00 0.0000E+00
S2 5.2190E-04 -7.0815E-03 4.6821E-03 -2.6817E-03 2.8967E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 -8.5768E-03 -5.2612E-02 5.9592E-02 -5.1104E-02 2.3818E-02 -6.0692E-03 5.8357E-04 0.0000E+00 0.0000E+00
S4 2.5316E-03 -2.7855E-02 7.1619E-03 1.1733E-03 -4.9855E-03 2.2091E-03 -3.0307E-04 0.0000E+00 0.0000E+00
S5 7.1424E-03 -1.7246E-02 5.1000E-04 7.9751E-03 -6.1490E-03 1.0345E-03 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.2877E-01 7.2443E-02 -1.9044E-02 -5.3087E-02 7.2132E-02 -4.2531E-02 1.3307E-02 -2.1615E-03 1.4634E-04
S7 -1.4253E-01 1.1735E-01 -1.2129E-01 7.6677E-02 -2.9575E-02 6.1109E-03 -5.1182E-04 0.0000E+00 0.0000E+00
S8 2.7654E-02 -3.9650E-03 2.3058E-04 1.6770E-04 2.2817E-05 -6.9303E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 2.1215E-02 6.2763E-04 -6.8766E-05 -1.1805E-05 8.1047E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 -3.1837E-03 1.8511E-03 -6.9582E-04 8.8200E-05 -5.0572E-06 1.0803E-07 0.0000E+00 0.0000E+00 0.0000E+00
表14
Figure PCTCN2018085625-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所给出的摄像镜头能够实现良好的成像品质。
实施例6
以下参照图11至图12D描述了根据本申请实施例6的摄像镜头。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，摄像镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5和成像面S13。
第一透镜L1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，且第一透镜E1的物侧面S1和像侧面S2均为非球面。第一透镜L1可为玻璃材质，其热膨胀系数TCE1＝3.70×10 -6/℃。
第二透镜L2具有正光焦度，其物侧面S3为凹面，像侧面S4为凸面，且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜L3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜L4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面，且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜L5具有负光焦度，其物侧面S9为凹面，像侧面S10为凸面，且第五透镜E5的物侧面S9和像侧面S10均为非球面。
可选地，摄像镜头还可包括具有物侧面S11和像侧面S12的滤光片L6。来自物体的光依序穿过各表面S1至S12并最终成像在成像面S13上。
可选地，可在物侧与第一透镜L1之间设置光阑STO，以提高摄像镜头的成像质量。
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示出了可用于实施例6中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表18示出了实施例6的摄像镜头的总有效焦距f、各透镜的有效焦距f1至f5、摄像镜头的光学总长度TTL以及摄像镜头成像面S13上有效像素区域对角线长的一半ImgH。
Figure PCTCN2018085625-appb-000014
Figure PCTCN2018085625-appb-000015
表16
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 7.3799E-03 2.4893E-03 -1.6861E-03 2.8000E-04 1.0910E-04 -3.6239E-05 -9.0662E-06 0.0000E+00 0.0000E+00
S2 9.4031E-04 -6.6069E-03 4.9252E-03 -2.6603E-03 2.5390E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S3 9.5265E-04 -9.5815E-02 1.3691E-01 -1.2618E-01 6.2684E-02 -1.5418E-02 1.2432E-03 0.0000E+00 0.0000E+00
S4 -4.5325E-03 -8.3016E-03 -2.3432E-02 2.3604E-02 -1.3308E-02 3.8596E-03 -4.5369E-04 0.0000E+00 0.0000E+00
S5 -2.3265E-02 4.4086E-02 -5.9364E-02 3.6741E-02 -1.2658E-02 1.5945E-03 0.0000E+00 0.0000E+00 0.0000E+00
S6 -1.9837E-01 2.8300E-01 -3.5992E-01 2.9724E-01 -1.6084E-01 5.7080E-02 -1.3074E-02 1.7694E-03 -1.0568E-04
S7 -1.4764E-01 1.5332E-01 -1.6266E-01 1.0060E-01 -3.6619E-02 7.0344E-03 -5.4492E-04 0.0000E+00 0.0000E+00
S8 2.9384E-02 -5.3307E-03 7.0251E-05 1.6645E-04 2.4458E-05 -6.7553E-06 0.0000E+00 0.0000E+00 0.0000E+00
S9 2.1522E-02 6.6265E-04 -6.3204E-05 -1.1279E-05 8.1851E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
S10 1.5191E-03 1.1740E-03 -6.7346E-04 8.7332E-05 -5.0294E-06 1.2242E-07 0.0000E+00 0.0000E+00 0.0000E+00
表17
Figure PCTCN2018085625-appb-000016
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所给出的摄像镜头能够实现良好的成像品质。
综上，实施例1至实施例6分别满足以下表19所示的关系。
条件式\实施例 1 2 3 4 5 6
f/EPD 1.30 1.26 1.29 1.38 1.30 1.36
TTL/ImgH 1.39 1.53 1.41 1.40 1.41 1.41
f1/f 1.74 1.63 1.72 1.72 1.53 1.43
CT1/CT4 0.96 0.65 0.88 1.09 0.91 1.03
CT3/CT5 1.03 1.16 0.88 0.95 0.93 0.90
T34/(T12+T23) 0.27 0.32 0.31 0.32 0.11 0.18
R8/R9 1.75 1.23 1.60 2.25 1.39 1.58
(R1+R2)/(R1-R2) -4.48 -3.51 -4.48 -4.29 -3.69 -3.17
R9/f5 0.52 0.62 0.55 0.59 0.54 0.52
R9/f -0.38 -0.42 -0.40 -0.42 -0.42 -0.40
DT52/ImgH 0.85 0.90 0.89 0.81 0.89 0.86
SAG51/SAG52 1.01 1.77 0.96 1.20 0.95 1.29
TCE1(10 -6/℃) 6.50 3.00 0.50 -3.00 6.10 3.70
表19
本申请还提供一种摄像装置，其电子感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。摄像装置可以是诸如数码相机的独立摄像设备，也可以是集成在诸如手机、平板电脑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 (39)

  1. 摄像镜头，沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜和所述第三透镜均具有正光焦度或负光焦度；
    所述第四透镜具有正光焦度，其像侧面为凸面；
    所述第五透镜具有负光焦度，其物侧面为凹面；
    所述第五透镜像侧面的有效半口径DT52与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足0.75＜DT52/ImgH＜1。
  2. 根据权利要求1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与所述摄像镜头的入瞳直径EPD满足f/EPD＜1.6。
  3. 根据权利要求1所述的摄像镜头，其特征在于，所述第一透镜的有效焦距f1与所述摄像镜头的总有效焦距f满足1.4＜f1/f＜2。
  4. 根据权利要求1或3所述的摄像镜头，其特征在于，所述第一透镜物侧面的曲率半径R1与所述第一透镜像侧面的曲率半径R2满足-5＜(R1+R2)/(R1-R2)＜-3。
  5. 根据权利要求1所述的摄像镜头，其特征在于，所述第四透镜像侧面的曲率半径R8与所述第五透镜物侧面的曲率半径R9满足1.2＜R8/R9＜3.5。
  6. 根据权利要求1或5所述的摄像镜头，其特征在于，所述第五透镜物侧面的曲率半径R9与所述第五透镜的有效焦距f5满足0＜R9/f5＜0.8。
  7. 根据权利要求1或5所述的摄像镜头，其特征在于，所述第五 透镜物侧面的曲率半径R9与所述摄像镜头的总有效焦距f满足R9/f＞-0.5。
  8. 根据权利要求1所述的摄像镜头，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第四透镜于所述光轴上的中心厚度CT4满足0.6＜CT1/CT4＜1.1。
  9. 根据权利要求1所述的摄像镜头，其特征在于，所述第三透镜于所述光轴上的中心厚度CT3与所述第五透镜于所述光轴上的中心厚度CT5满足0.8＜CT3/CT5＜1.2。
  10. 根据权利要求1所述的摄像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12、所述第二透镜和所述第三透镜在所述光轴上的间隔距离T23以及所述第三透镜和所述第四透镜在所述光轴上的间隔距离T34满足0.1＜T34/(T12+T23)＜0.5。
  11. 根据权利要求1、8至10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至所述摄像镜头成像面的轴上距离TTL与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.6。
  12. 根据权利要求1所述的摄像镜头，其特征在于，满足0.8＜SAG51/SAG52＜1.8，
    其中，SAG51为所述第五透镜的物侧面和所述光轴的交点至所述第五透镜的物侧面的有效半口径顶点之间在所述光轴上的距离；以及
    SAG52为所述第五透镜的像侧面和所述光轴的交点至所述第五透镜的像侧面的有效半口径顶点之间在所述光轴上的距离。
  13. 根据权利要求1所述的摄像镜头，其特征在于，所述第一透镜为玻璃材质的透镜，其热膨胀系数TCE1满足TCE1＜15×10 -6/℃。
  14. 摄像镜头，沿光轴由物侧至像侧依序包括：具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，其特征在于，
    所述第一透镜的物侧面为凸面，像侧面为凹面；
    所述第二透镜的物侧面和像侧面中的至少一个为凸面；
    所述第三透镜的物侧面和像侧面中的至少一个为凹面；
    所述第四透镜具有正光焦度，其像侧面为凸面；
    所述第五透镜具有负光焦度，其物侧面为凹面，所述第五透镜满足0.8＜SAG51/SAG52＜1.8，
    其中，SAG51为所述第五透镜的物侧面和所述光轴的交点至所述第五透镜的物侧面的有效半口径顶点之间在所述光轴上的距离；
    SAG52为所述第五透镜的像侧面和所述光轴的交点至所述第五透镜的像侧面的有效半口径顶点之间在所述光轴上的距离。
  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。
  16. 根据权利要求15所述的摄像镜头，其特征在于，所述第一透镜的有效焦距f1与所述摄像镜头的总有效焦距f满足1.4＜f1/f＜2。
  17. 根据权利要求15所述的摄像镜头，其特征在于，所述第一透镜物侧面的曲率半径R1与所述第一透镜像侧面的曲率半径R2满足-5＜(R1+R2)/(R1-R2)＜-3。
  18. 根据权利要求14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与所述摄像镜头的入瞳直径EPD满足f/EPD＜1.6。
  19. 根据权利要求14所述的摄像镜头，其特征在于，所述第一透镜的物侧面至所述摄像镜头成像面的轴上距离TTL与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.6。
  20. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第四透镜像侧面的曲率半径R8与所述第五透镜物侧面的曲率半径R9满足1.2＜R8/R9＜3.5。
  21. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第五透镜物侧面的曲率半径R9与所述第五透镜的有效焦距f5满足0＜R9/f5＜0.8。
  22. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第五透镜物侧面的曲率半径R9与所述摄像镜头的总有效焦距f满足R9/f＞-0.5。
  23. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第四透镜于所述光轴上的中心厚度CT4满足0.6＜CT1/CT4＜1.1。
  24. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第三透镜于所述光轴上的中心厚度CT3与所述第五透镜于所述光轴上的中心厚度CT5满足0.8＜CT3/CT5＜1.2。
  25. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12、所述第二透镜和所述第三透镜在所述光轴上的间隔距离T23以及所述第三透镜和所述第四透镜在所述光轴上的间隔距离T34满足0.1＜T34/(T12+T23)＜0.5。
  26. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第五透镜像侧面的有效半口径DT52与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足0.75＜DT52/ImgH＜ 1。
  27. 根据权利要求14、18或19中任一项所述的摄像镜头，其特征在于，所述第一透镜为玻璃材质的透镜，其热膨胀系数TCE1满足TCE1＜15×10 -6/℃。
  28. 摄像镜头，沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜和所述第三透镜均具有正光焦度或负光焦度；
    所述第四透镜具有正光焦度，其像侧面为凸面；
    所述第五透镜具有负光焦度，其物侧面为凹面；
    其中，所述摄像镜头的总有效焦距f与所述摄像镜头的入瞳直径EPD满足f/EPD＜1.6；
    所述第一透镜的物侧面至所述摄像镜头成像面的轴上距离TTL与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.6。
  29. 根据权利要求28所述的摄像镜头，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第四透镜于所述光轴上的中心厚度CT4满足0.6＜CT1/CT4＜1.1。
  30. 根据权利要求28所述的摄像镜头，其特征在于，所述第三透镜于所述光轴上的中心厚度CT3与所述第五透镜于所述光轴上的中心厚度CT5满足0.8＜CT3/CT5＜1.2。
  31. 根据权利要求28所述的摄像镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12、所述第二透镜和所述第三透镜在所述光轴上的间隔距离T23以及所述第三透镜和所述第四透镜在所述光轴上的间隔距离T34满足0.1＜T34/(T12+T23)＜0.5。
  32. 根据权利要求28所述的摄像镜头，其特征在于，所述第五透镜物侧面的曲率半径R9与所述第五透镜的有效焦距f5满足0＜R9/f5＜0.8。
  33. 根据权利要求28所述的摄像镜头，其特征在于，所述第五透镜物侧面的曲率半径R9与所述摄像镜头的总有效焦距f满足R9/f＞-0.5。
  34. 根据权利要求28、32或33中任一项所述的摄像镜头，其特征在于，所述第四透镜像侧面的曲率半径R8与所述第五透镜物侧面的曲率半径R9满足1.2＜R8/R9＜3.5。
  35. 根据权利要求28所述的摄像镜头，其特征在于，所述第一透镜物侧面的曲率半径R1与所述第一透镜像侧面的曲率半径R2满足-5＜(R1+R2)/(R1-R2)＜-3。
  36. 根据权利要求28或35所述的摄像镜头，其特征在于，所述第一透镜的有效焦距f1与所述摄像镜头的总有效焦距f满足1.4＜f1/f＜2。
  37. 根据权利要求28所述的摄像镜头，其特征在于，所述第五透镜像侧面的有效半口径DT52与所述摄像镜头成像面上有效像素区域对角线长的一半ImgH满足0.75＜DT52/ImgH＜1。
  38. 根据权利要求28或37所述的摄像镜头，其特征在于，满足0.8＜SAG51/SAG52＜1.8，
    其中，SAG51为所述第五透镜的物侧面和所述光轴的交点至所述第五透镜的物侧面的有效半口径顶点之间在所述光轴上的距离；以及
    SAG52为所述第五透镜的像侧面和所述光轴的交点至所述第五 透镜的像侧面的有效半口径顶点之间在所述光轴上的距离。
  39. 根据权利要求28所述的摄像镜头，其特征在于，所述第一透镜为玻璃材质的透镜，其热膨胀系数TCE1满足TCE1＜15×10 -6/℃。
PCT/CN2018/085625 2017-09-13 2018-05-04 摄像镜头 WO2019052199A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112526706B (zh) * 2019-09-17 2022-03-25 华为技术有限公司 一种镜头组、相关设备以及相关系统
KR20210044105A (ko) * 2019-10-14 2021-04-22 삼성전기주식회사 촬상 광학계 및 카메라 모듈
CN111736316B (zh) * 2020-08-25 2020-11-20 诚瑞光学(常州)股份有限公司 摄像光学镜头
CN116449546B (zh) * 2023-06-19 2023-10-03 江西联益光学有限公司 光学镜头

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018887A (zh) * 2012-12-26 2013-04-03 浙江舜宇光学有限公司 微型摄像镜头
WO2015005417A1 (ja) * 2013-07-12 2015-01-15 コニカミノルタ株式会社 撮像レンズ、撮像装置及び携帯端末
CN106896481A (zh) * 2017-04-18 2017-06-27 浙江舜宇光学有限公司 成像镜头
CN107153257A (zh) * 2017-05-15 2017-09-12 浙江舜宇光学有限公司 光学成像系统
CN107462976A (zh) * 2017-09-13 2017-12-12 浙江舜宇光学有限公司 摄像镜头
CN207123645U (zh) * 2017-09-13 2018-03-20 浙江舜宇光学有限公司 摄像镜头

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105739060B (zh) 2014-12-10 2018-01-02 大立光电股份有限公司 光学成像透镜组、取像装置及电子装置
TWI518363B (zh) * 2014-12-10 2016-01-21 大立光電股份有限公司 光學成像透鏡組、取像裝置及電子裝置
TWI591374B (zh) * 2015-01-06 2017-07-11 先進光電科技股份有限公司 光學成像系統（二）
TWI589916B (zh) * 2015-01-06 2017-07-01 先進光電科技股份有限公司 光學成像系統（五）

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018887A (zh) * 2012-12-26 2013-04-03 浙江舜宇光学有限公司 微型摄像镜头
WO2015005417A1 (ja) * 2013-07-12 2015-01-15 コニカミノルタ株式会社 撮像レンズ、撮像装置及び携帯端末
CN106896481A (zh) * 2017-04-18 2017-06-27 浙江舜宇光学有限公司 成像镜头
CN107153257A (zh) * 2017-05-15 2017-09-12 浙江舜宇光学有限公司 光学成像系统
CN107462976A (zh) * 2017-09-13 2017-12-12 浙江舜宇光学有限公司 摄像镜头
CN207123645U (zh) * 2017-09-13 2018-03-20 浙江舜宇光学有限公司 摄像镜头

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