WO2019233160A1 - 光学成像镜片组 - Google Patents

光学成像镜片组 Download PDF

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Publication number
WO2019233160A1
WO2019233160A1 PCT/CN2019/078961 CN2019078961W WO2019233160A1 WO 2019233160 A1 WO2019233160 A1 WO 2019233160A1 CN 2019078961 W CN2019078961 W CN 2019078961W WO 2019233160 A1 WO2019233160 A1 WO 2019233160A1
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Prior art keywords
lens
optical imaging
lens group
imaging lens
object side
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PCT/CN2019/078961
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English (en)
French (fr)
Inventor
高雪
闻人建科
李明
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浙江舜宇光学有限公司
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Publication of WO2019233160A1 publication Critical patent/WO2019233160A1/zh

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

Definitions

  • the present application relates to an optical imaging lens group, and more particularly, the present application relates to an optical imaging lens group including eight lenses.
  • the present application provides an optical imaging lens set applicable to portable electronic products, which can at least partially solve or at least partially solve the above-mentioned at least one disadvantage in the prior art.
  • the lens group may include a first lens, a second lens, a third lens, a fourth lens, and a first lens in order from the object side to the image side along the optical axis.
  • the first lens may have a positive power; the second lens may have a negative power; the third lens may have a power and the object side may be convex and the image side may be concave; the fourth lens may have a power;
  • the fifth lens has optical power, and its object side may be convex; the sixth lens may have positive optical power, and its object side may be convex; the seventh lens has optical power; and the eighth lens has negative power.
  • the effective focal length f2 of the second lens and the total effective focal length f of the optical imaging lens group may satisfy -2.5 ⁇ f2 / f ⁇ -1.5.
  • the total effective focal length f of the optical imaging lens group and the entrance pupil diameter EPD of the optical imaging lens group may satisfy f / EPD ⁇ 1.8.
  • the total effective focal length f of the optical imaging lens group and the effective focal length f1 of the first lens may satisfy 1 ⁇ f / f1 ⁇ 2.
  • the effective focal length f6 of the sixth lens and the curvature radius R11 of the object side of the sixth lens may satisfy 1 ⁇ f6 / R11 ⁇ 2.
  • the total effective focal length f of the optical imaging lens group and the effective focal length f8 of the eighth lens may satisfy -2 ⁇ f / f8 ⁇ -1.
  • the total effective focal length f of the optical imaging lens group and the curvature radius R1 of the object side of the first lens may satisfy 2 ⁇ f / R1 ⁇ 2.5.
  • the curvature radius R6 of the image side of the third lens and the curvature radius R5 of the object side of the third lens may satisfy 0.5 ⁇ R6 / R5 ⁇ 1.5.
  • the curvature radius R9 of the object side of the fifth lens and the curvature radius R10 of the image side of the fifth lens may satisfy 1 ⁇ R9 / R10 ⁇ 2.
  • the distance T34 between the center thickness CT4 of the fourth lens on the optical axis and the third lens and the fourth lens on the optical axis may satisfy 0.8 ⁇ CT4 / T34 ⁇ 1.8.
  • the center thickness CT1 of the first lens on the optical axis and the center thickness CT7 of the seventh lens on the optical axis may satisfy 0.5 ⁇ CT1 / CT7 ⁇ 1.5.
  • the maximum effective radius DT21 of the object side of the second lens and the maximum effective radius DT41 of the object side of the fourth lens may satisfy 1 ⁇ DT21 / DT41 ⁇ 1.5.
  • the object side of the second lens may be convex, and the image side may be concave.
  • the image side of the seventh lens may be convex.
  • the image side of the eighth lens may be concave.
  • the distance TTL on the axis from the object side of the first lens to the image surface of the optical imaging lens and the half of the diagonal length of the effective pixel area on the image surface of the optical imaging lens ImgH can satisfy TTL / ImgH ⁇ 1.95.
  • the full field angle FOV of the optical imaging lens group can satisfy 60 ° ⁇ FOV ⁇ 75 °.
  • This application uses multiple (for example, six) lenses.
  • the above-mentioned optical imaging lens group has At least one of the beneficial effects of large aperture, low sensitivity, and high image quality.
  • FIG. 1 is a schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application.
  • 2A to 2D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens group of Example 1;
  • FIG. 3 is a schematic structural diagram of an optical imaging lens group according to Embodiment 2 of the present application.
  • 4A to 4D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 2;
  • FIG. 5 is a schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application.
  • FIG. 6A to FIG. 6D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 3;
  • FIG. 7 is a schematic structural diagram of an optical imaging lens group according to Embodiment 4 of the present application.
  • FIG. 8A to FIG. 8D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens group of Example 4;
  • FIG. 9 is a schematic structural diagram of an optical imaging lens group according to Embodiment 5 of the present application.
  • FIGS. 10A to 10D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 5;
  • FIG. 11 is a schematic structural diagram of an optical imaging lens group according to Embodiment 6 of the present application.
  • FIG. 12A to FIG. 12D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 6;
  • FIG. 13 is a schematic structural diagram of an optical imaging lens group according to Embodiment 7 of the present application.
  • 14A to 14D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 7;
  • FIG. 15 is a schematic structural diagram of an optical imaging lens group according to Embodiment 8 of the present application.
  • FIGS. 16A to 16D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 8;
  • FIG. 17 is a schematic structural diagram of an optical imaging lens group according to Embodiment 9 of the present application.
  • 18A to 18D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens group of Example 9;
  • FIG. 19 is a schematic structural diagram of an optical imaging lens group according to Embodiment 10 of the present application.
  • FIG. 20A to FIG. 20D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens group of Example 10;
  • FIG. 21 is a schematic structural diagram of an optical imaging lens group according to Embodiment 11 of the present application.
  • 22A to 22D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 11;
  • FIG. 23 is a schematic structural diagram of an optical imaging lens group according to Embodiment 12 of the present application.
  • FIG. 24A to FIG. 24D show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 12, respectively;
  • FIG. 25 is a schematic structural diagram of an optical imaging lens group according to Embodiment 13 of the present application.
  • 26A to 26D illustrate on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging lens group of Example 13, respectively.
  • first, second, third, etc. are only used to distinguish one feature from another feature, and do not indicate any limitation on the feature. Therefore, without departing from the teachings of this application, a first lens discussed below may also be referred to as a second lens or a third lens.
  • the thickness, size, and shape of the lens have been slightly exaggerated.
  • the spherical or aspherical shapes shown in the drawings are shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings.
  • the drawings are only examples and are not drawn to scale.
  • the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the concave position is not defined, it means that the lens surface is at least in the paraxial area. Concave.
  • the surface of each lens closest to the object side is called the object side of the lens, and the surface of each lens closest to the image side is called the image side of the lens.
  • the optical imaging lens group may include, for example, eight lenses having optical power, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, The seventh lens and the eighth lens. These eight lenses are sequentially arranged along the optical axis from the object side to the image side.
  • the first lens may have a positive power
  • the second lens may have a negative power
  • the third lens may have a positive power or a negative power.
  • the object side may be convex, and the image side may be Concave surface; the fourth lens has positive or negative power; the fifth lens has positive or negative power; its object side can be convex; the sixth lens can have positive power and its object side can be convex
  • the seventh lens has a positive or negative power; the eighth lens may have a negative power.
  • Reasonable power distribution can reduce the incident angle of the main ray on the imaging surface and improve the matching between the lens group and the photosensitive element and the band-pass filter.
  • the object side of the second lens may be convex, and the image side may be concave; the image side of the seventh lens may be convex; and the image side of the eighth lens may be concave. Further controlling the shape of the second lens, the seventh lens, and the eighth lens can effectively balance the image quality of each field of view of the optical system, improve the sensitivity of the optical system, and help ensure the assembly stability of the optical imaging lens group, and Conducive to batch production.
  • the object side of the first lens may be convex.
  • the image side of the fifth lens may be concave.
  • the optical imaging lens group of the present application may satisfy a conditional expression f / EPD ⁇ 1.8, where f is a total effective focal length of the optical imaging lens group, and EPD is an entrance pupil diameter of the optical imaging lens group. More specifically, f and EPD can further satisfy 1.4 ⁇ f / EPD ⁇ 1.7, for example, 1.45 ⁇ f / EPD ⁇ 1.59.
  • f and EPD can further satisfy 1.4 ⁇ f / EPD ⁇ 1.7, for example, 1.45 ⁇ f / EPD ⁇ 1.59.
  • Reasonably controlling the ratio of the total effective focal length of the optical imaging lens group to the entrance pupil diameter can give the lens group the advantage of a larger aperture, which can increase the amount of light per unit time of the system and enhance the imaging effect in dark environments.
  • the optical imaging lens group of the present application can satisfy the conditional expression 1 ⁇ f / f1 ⁇ 2, where f is a total effective focal length of the optical imaging lens group, and f1 is an effective focal length of the first lens. More specifically, f and f1 can further satisfy 1 ⁇ f / f1 ⁇ 1.5, for example, 1.04 ⁇ f / f1 ⁇ 1.20. Effectively controlling the ratio of the total effective focal length of the optical imaging lens group to the effective focal length of the first lens can effectively correct the spherical aberration of the optical system and improve the processability of the first lens.
  • the optical imaging lens group of the present application can satisfy a conditional expression -2.5 ⁇ f2 / f ⁇ -1.5, where f2 is an effective focal length of the second lens, and f is a total effective focal length of the optical imaging lens group. More specifically, f2 and f can further satisfy -2.01 ⁇ f2 / f ⁇ -1.54.
  • Reasonably controlling the ratio of the effective focal length of the second lens to the total effective focal length of the optical imaging lens group can control the spherical aberration contribution of the second lens to a reasonable level, so that the field of view area on the axis of the system has good imaging quality .
  • the optical imaging lens group of the present application can satisfy the conditional expression 1 ⁇ f6 / R11 ⁇ 2, where f6 is an effective focal length of the sixth lens, and R11 is a radius of curvature of the object side of the sixth lens. More specifically, f6 and R11 can further satisfy 1.19 ⁇ f6 / R11 ⁇ 1.88.
  • Reasonably controlling the ratio of the effective focal length of the sixth lens to the curvature radius of the object side of the sixth lens can reduce the off-axis chromatic aberration of the optical system, reduce the sensitivity of the sixth lens, and increase the production yield of the lens.
  • the optical imaging lens group of the present application can satisfy a conditional expression -2 ⁇ f / f8 ⁇ -1, where f is a total effective focal length of the optical imaging lens group, and f8 is an effective focal length of the eighth lens. More specifically, f and f8 can further satisfy ⁇ 1.96 ⁇ f / f8 ⁇ ⁇ 1.22. Reasonably distributing the ratio of the total effective focal length of the optical imaging lens group to the effective focal length of the eighth lens can reasonably control the field curvature contribution of the eighth lens so that its balance is in a reasonable state.
  • the optical imaging lens group of the present application can satisfy a conditional expression TTL / ImgH ⁇ 1.95, where TTL is an axial distance from the object side of the first lens to the imaging surface of the optical imaging lens group, and ImgH is optical Half of the diagonal of the effective pixel area on the imaging surface of the imaging lens group. More specifically, TTL and ImgH can further satisfy 1.73 ⁇ TTL / ImgH ⁇ 1.92. Reasonably controlling the ratio of the total length and the image height of the optical imaging lens group can effectively compress the size of the optical system and ensure the miniaturization characteristics of the optical imaging lens group.
  • the optical imaging lens group of the present application can satisfy the conditional expression 0.5 ⁇ R6 / R5 ⁇ 1.5, where R6 is the curvature radius of the image side of the third lens and R5 is the curvature of the object side of the third lens radius. More specifically, R6 and R5 can further satisfy 0.8 ⁇ R6 / R5 ⁇ 1.4, for example, 0.97 ⁇ R6 / R5 ⁇ 1.30.
  • the rational distribution of the ratio of the curvature radius of the image side of the third lens to the curvature radius of the object side of the third lens enables the optical system to better match the principal light angle of the chip.
  • the optical imaging lens group of the present application may satisfy the conditional expression 1 ⁇ R9 / R10 ⁇ 2, where R9 is the curvature radius of the object side of the fifth lens, and R10 is the curvature of the image side of the fifth lens. radius. More specifically, R9 and R10 can further satisfy 1 ⁇ R9 / R10 ⁇ 1.7, for example, 1.01 ⁇ R9 / R10 ⁇ 1.55.
  • Reasonably controlling the ratio of the curvature radius of the object side of the fifth lens to the curvature radius of the image side of the fifth lens can reduce the deflection angle of the light, reduce the sensitivity of the system, and reduce coma and distortion.
  • the optical imaging lens group of the present application can satisfy the conditional expression 2 ⁇ f / R1 ⁇ 2.5, where f is the total effective focal length of the optical imaging lens group, and R1 is the radius of curvature of the object side of the first lens. . More specifically, f and R1 can further satisfy 2.16 ⁇ f / R1 ⁇ 2.33.
  • Reasonably controlling the ratio of the total effective focal length of the optical imaging lens group to the curvature radius of the object side of the first lens can reduce the spherical aberration of the system, at the same time shorten the total length of the system, and improve the imaging quality.
  • the optical imaging lens group of the present application can satisfy the conditional expression 0.8 ⁇ CT4 / T34 ⁇ 1.8, where CT4 is the center thickness of the fourth lens on the optical axis, and T34 is the third lens and the fourth lens The distance on the optical axis. More specifically, CT4 and T34 can further satisfy 0.8 ⁇ CT4 / T34 ⁇ 1.5, for example, 0.91 ⁇ CT4 / T34 ⁇ 1.25.
  • the optical imaging lens group of the present application can satisfy the conditional expression 0.5 ⁇ CT1 / CT7 ⁇ 1.5, where CT1 is the center thickness of the first lens on the optical axis and CT7 is the seventh lens on the optical axis.
  • the center thickness More specifically, CT1 and CT7 can further satisfy 0.87 ⁇ CT1 / CT7 ⁇ 1.32.
  • Reasonably controlling the ratio between the center thickness of the first lens and the center thickness of the seventh lens can make the light deflection tend to ease, reduce the sensitivity, and reduce the astigmatism, distortion and chromatic aberration of the system.
  • the optical imaging lens group of the present application may satisfy a conditional expression of 60 ° ⁇ FOV ⁇ 75 °, where FOV is a full field angle of the optical imaging lens group. More specifically, FOV can further satisfy 63.8 ° ⁇ FOV ⁇ 70.1 °. Reasonably controlling the size of the full field of view of the optical system can effectively control the imaging range of the optical system.
  • the optical imaging lens group of the present application can satisfy the conditional expression 1 ⁇ DT21 / DT41 ⁇ 1.5, where DT21 is the maximum effective radius of the object side of the second lens, and DT41 is the maximum effective radius of the object side of the fourth lens. Maximum effective radius. More specifically, DT21 and DT41 can further satisfy 1 ⁇ DT21 / DT41 ⁇ 1.2, for example, 1.10 ⁇ DT21 / DT41 ⁇ 1.17. Reasonably controlling the ratio of the maximum effective radius of the object side of the second lens to the maximum effective radius of the object side of the fourth lens can slow down the bending power of the light at the front end of the optical system and effectively reduce the sensitivity of the optical system.
  • the above-mentioned optical imaging lens group may further include at least one diaphragm to improve the imaging quality of the lens.
  • the diaphragm may be disposed between the object side and the first lens.
  • the above-mentioned optical imaging lens group may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element on the imaging surface.
  • the optical imaging lens set according to the above embodiment of the present application may employ multiple lenses, such as the six described above.
  • the volume of the lens group can be effectively reduced, the sensitivity of the lens group can be reduced, and the lens group can be improved.
  • Processability makes the optical imaging lens group more conducive to production and processing and is applicable to portable electronic products.
  • the optical imaging lens group configured as described above can also have beneficial effects such as a large aperture and high imaging quality.
  • aspheric mirror surfaces are often used for each lens.
  • Aspheric lenses are characterized by a curvature that varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the lens center to the periphery of the lens, an aspheric lens has better curvature radius characteristics, and has the advantages of improving distortion and astigmatic aberration.
  • the use of aspheric lenses can eliminate as much aberrations as possible during imaging, thereby improving imaging quality.
  • the number of lenses constituting the optical imaging lens group may be changed to obtain various results and advantages described in this specification.
  • the optical imaging lens group is not limited to including eight lenses. If desired, the optical imaging lens set may also include other numbers of lenses. Specific examples of the optical imaging lens group applicable to the above embodiments will be further described below with reference to the drawings.
  • FIG. 1 is a schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application.
  • an optical imaging lens group includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, and The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a negative power, its object side S7 is concave, and the image side S8 is concave; the fifth lens E5 has a negative power, The object side S9 is convex and the image side S10 is concave.
  • the sixth lens E6 has positive power, the object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power and the object side S13 is concave
  • the image side S14 is convex
  • the eighth lens E8 has a negative power
  • the object side S15 is concave
  • the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 1 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the optical imaging lens group of Example 1.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • each aspheric lens can be defined using, but not limited to, the following aspheric formula:
  • x is the distance vector from the vertex of the aspheric surface when the aspheric surface is at the height h along the optical axis;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the aspherical i-th order.
  • Table 2 below shows the higher-order coefficients A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18, and A 20 that can be used for each aspherical mirror surface S1-S16 in Example 1. .
  • Table 3 shows the effective focal lengths f1 to f8 of each lens in Example 1, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 2A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 1, which indicates that the focal points of light with different wavelengths are deviated after passing through the lens group.
  • FIG. 2B shows the astigmatism curve of the optical imaging lens group of Example 1, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 2C shows a distortion curve of the optical imaging lens group of Example 1, which represents the magnitude of the distortion at different image heights.
  • FIG. 2D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 1, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group. It can be known from FIG. 2A to FIG. 2D that the optical imaging lens group provided in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a schematic structural diagram of an optical imaging lens group according to Embodiment 2 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is concave, and the image side S8 is convex; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is concave.
  • the seventh lens E7 has positive power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the optical imaging lens group of Example 2.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 5 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 2, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 6 shows the effective focal lengths f1 to f8 of each lens in Example 2, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 4A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 2, which indicates that the focal points of the light rays with different wavelengths after passing through the lens group deviate.
  • FIG. 4B shows an astigmatism curve of the optical imaging lens group of Example 2, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 4C shows a distortion curve of the optical imaging lens group of Example 2, which represents the magnitude of the distortion at different image heights.
  • FIG. 4D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 2, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group. According to FIG. 4A to FIG. 4D, it can be known that the optical imaging lens group provided in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application.
  • the optical imaging lens group sequentially includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is concave, and the image side S8 is convex; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is concave.
  • the seventh lens E7 has positive power, and its object side S13 is convex.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 3.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 8 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 3, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 9 shows the effective focal lengths f1 to f8 of each lens in Example 3, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 6A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 3, which indicates that the focal points of light with different wavelengths are deviated after passing through the lens group.
  • FIG. 6B shows an astigmatism curve of the optical imaging lens group of Example 3, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 6C shows a distortion curve of the optical imaging lens group of Example 3, which represents the magnitude of the distortion at different image heights.
  • FIG. 6D shows a magnification chromatic aberration curve of the optical imaging lens group of Example 3, which represents the deviation of different image heights on the imaging plane after the light passes through the lens group. According to FIG. 6A to FIG. 6D, it can be known that the optical imaging lens group provided in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a schematic structural diagram of an optical imaging lens group according to Embodiment 4 of the present application.
  • the optical imaging lens group sequentially includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Negative power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is convex; the fifth lens E5 has a negative power, The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, the object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and the object side S13 is concave.
  • the image side S14 is convex; the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 10 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 4, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 11 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 4, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 12 shows the effective focal lengths f1 to f8 of each lens in Example 4, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 8A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 4, which indicates that the focal points of the light rays with different wavelengths after passing through the lens group deviate.
  • FIG. 8B shows the astigmatism curve of the optical imaging lens group of Example 4, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 8C shows a distortion curve of the optical imaging lens group of Example 4, which represents the magnitude of the distortion at different image heights.
  • FIG. 8D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 4, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group. According to FIG. 8A to FIG. 8D, it can be known that the optical imaging lens group provided in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a schematic structural diagram of an optical imaging lens group according to Embodiment 5 of the present application.
  • the optical imaging lens group includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has positive power, its object side S7 is concave, and the image side S8 is convex; the fifth lens E5 has positive power, its object The side surface S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, the object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and the object side S13 is concave, like The side surface S14 is a convex surface; the eighth lens E8 has a negative power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 13 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 5, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 14 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 5, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 15 shows the effective focal lengths f1 to f8 of each lens in Example 5, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 10A shows the on-axis chromatic aberration curve of the optical imaging lens group of Example 5, which indicates that the focal points of the light rays with different wavelengths after passing through the lens group deviate.
  • FIG. 10B shows an astigmatism curve of the optical imaging lens group of Example 5, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 10C shows a distortion curve of the optical imaging lens group of Example 5, which represents the magnitude of the distortion at different image heights.
  • FIG. 10D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 5, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a schematic structural diagram of an optical imaging lens group according to Embodiment 6 of the present application.
  • the optical imaging lens group includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is concave, and the image side S8 is convex; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has negative power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is convex, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 16 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 6, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 17 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 6, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 18 shows the effective focal lengths f1 to f8 of the lenses in Example 6, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 12A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 6, which indicates that the focal points of light with different wavelengths are deviated after passing through the lens group.
  • FIG. 12B shows an astigmatism curve of the optical imaging lens group of Example 6, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 12C shows a distortion curve of the optical imaging lens group of Example 6, which represents the magnitude of the distortion at different image heights.
  • FIG. 12D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 6, which represents the deviation of different image heights on the imaging plane after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a schematic structural diagram of an optical imaging lens group according to Embodiment 7 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 19 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 7, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 20 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 7, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 21 shows the effective focal lengths f1 to f8 of each lens in Example 7, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 14A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 7, which indicates that the focal points of light rays with different wavelengths are deviated after passing through the lens group.
  • FIG. 14B shows an astigmatism curve of the optical imaging lens group of Example 7, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 14C shows a distortion curve of the optical imaging lens group of Example 7, which represents the magnitude of the distortion at different image heights.
  • FIG. 14D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 7, which represents the deviation of different image heights on the imaging plane after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a schematic structural diagram of an optical imaging lens group according to Embodiment 8 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is concave.
  • the seventh lens E7 has positive power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 22 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 8, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 23 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 8, where each aspheric surface type can be defined by the formula (1) given in the above-mentioned Embodiment 1.
  • Table 24 shows the effective focal lengths f1 to f8 of each lens in Example 8, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 16A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 8, which indicates that the focal points of light with different wavelengths are deviated after passing through the lens group.
  • FIG. 16B shows an astigmatism curve of the optical imaging lens group of Example 8, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 16C shows a distortion curve of the optical imaging lens group of Example 8, which represents the magnitude of the distortion at different image heights.
  • FIG. 16D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 8, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 is a schematic structural diagram of an optical imaging lens group according to Embodiment 9 of the present application.
  • the optical imaging lens group includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is concave, and the image side S8 is convex; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, the object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and the object side S13 is convex.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 25 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 9, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 26 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 9, where each aspheric surface type can be defined by the formula (1) given in the above-mentioned Embodiment 1.
  • Table 27 shows the effective focal lengths f1 to f8 of each lens in Example 9, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 18A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 9, which indicates that the focal points of the light rays with different wavelengths after passing through the lens group deviate.
  • FIG. 18B shows an astigmatism curve of the optical imaging lens group of Example 9, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 18C shows a distortion curve of the optical imaging lens group of Example 9, which represents the magnitude of the distortion at different image heights.
  • FIG. 18D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 9, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 9 can achieve good imaging quality.
  • FIG. 19 is a schematic structural diagram of an optical imaging lens group according to Embodiment 10 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is convex; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 28 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the optical imaging lens group of Example 10.
  • the units of the radius of curvature and the thickness are both millimeters (mm).
  • Table 29 shows the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 10, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 30 shows the effective focal lengths f1 to f8 of each lens, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 20A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 10, which indicates that the focal points of light with different wavelengths are deviated after passing through the lens group.
  • FIG. 20B shows an astigmatism curve of the optical imaging lens group of Example 10, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 20C illustrates a distortion curve of the optical imaging lens group of Example 10, which represents the magnitude of the distortion at different image heights.
  • FIG. 20D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 10, which represents the deviation of different image heights on the imaging plane after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 10 can achieve good imaging quality.
  • FIG. 21 is a schematic structural diagram of an optical imaging lens group according to Embodiment 11 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; For negative power, the object side S5 is convex and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a negative power, The object side S9 is convex and the image side S10 is concave.
  • the sixth lens E6 has positive power, the object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power and the object side S13 is concave
  • the image side S14 is convex
  • the eighth lens E8 has a negative power
  • the object side S15 is concave
  • the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 31 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 11, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 32 shows the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 11, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 33 shows the effective focal lengths f1 to f8 of each lens in Example 11, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 22A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 11, which indicates that the focal points of light rays with different wavelengths are deviated after passing through the lens group.
  • FIG. 22B shows an astigmatism curve of the optical imaging lens group of Example 11, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 22C shows a distortion curve of the optical imaging lens group of Example 11, which represents the magnitude of the distortion at different image heights.
  • FIG. 22D shows a magnification chromatic aberration curve of the optical imaging lens group of Example 11, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 11 can achieve good imaging quality.
  • FIG. 23 is a schematic structural diagram of an optical imaging lens group according to Embodiment 12 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a negative power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a positive power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has positive power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is concave, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 34 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 12, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 35 shows the higher-order coefficients that can be used for each aspherical mirror surface in Embodiment 12, where each aspheric surface type can be defined by the formula (1) given in the above-mentioned Embodiment 1.
  • Table 36 shows the effective focal lengths f1 to f8 of each lens in Example 12, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 24A shows an on-axis chromatic aberration curve of the optical imaging lens group of Example 12, which indicates that the focal points of light rays with different wavelengths after passing through the lens group deviate.
  • FIG. 24B shows an astigmatism curve of the optical imaging lens group of Example 12, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 24C shows a distortion curve of the optical imaging lens group of Example 12, which represents the value of the distortion magnitude at different image heights.
  • FIG. 24D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 12, which represents the deviation of different image heights on the imaging plane after the light passes through the lens group. According to FIG. 24A to FIG. 24D, the optical imaging lens group provided in Embodiment 12 can achieve good imaging quality.
  • FIG. 25 is a schematic structural diagram of an optical imaging lens group according to Embodiment 13 of the present application.
  • the optical imaging lens group includes, in order from the object side to the image side along the optical axis, an aperture STO, a first lens E1, a second lens E2, a third lens E3, The fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the eighth lens E8, the filter E9, and the imaging surface S19.
  • the first lens E1 has a positive power, the object side S1 is convex, and the image side S2 is concave; the second lens E2 has a negative power, the object side S3 is convex, and the image side S4 is concave; the third lens E3 has Positive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has a positive power, its object side S7 is convex, and the image side S8 is concave; the fifth lens E5 has a negative power, which The object side S9 is convex, and the image side S10 is concave.
  • the sixth lens E6 has positive power, its object side S11 is convex, and the image side S12 is convex.
  • the seventh lens E7 has negative power, and its object side S13 is concave.
  • the image side S14 is convex;
  • the eighth lens E8 has a negative power, the object side S15 is convex, and the image side S16 is concave.
  • the filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.
  • Table 37 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens group of Example 13, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 38 shows the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 13, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 39 shows the effective focal lengths f1 to f8 of the lenses in Example 13, the total effective focal length f of the optical imaging lens group, the distance TTL on the optical axis from the object side S1 to the imaging surface S19 of the first lens E1, and the imaging surface S19.
  • the diagonal of the upper effective pixel area is half ImgH and the full field of view FOV.
  • FIG. 26A illustrates an on-axis chromatic aberration curve of the optical imaging lens group of Example 13, which indicates that the focal points of light rays with different wavelengths pass through the lens group and deviate.
  • FIG. 26B shows an astigmatism curve of the optical imaging lens group of Example 13, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 26C shows a distortion curve of the optical imaging lens group of Example 13, which represents the magnitude of the distortion at different image heights.
  • FIG. 26D shows the magnification chromatic aberration curve of the optical imaging lens group of Example 13, which represents the deviation of different image heights on the imaging surface after the light passes through the lens group.
  • the optical imaging lens group provided in Embodiment 13 can achieve good imaging quality.
  • Examples 1 to 13 satisfy the relationships shown in Table 40, respectively.
  • the present application also provides an imaging device whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be an independent imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging lens group described above.

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Abstract

一种光学成像镜片组，该光学成像镜片组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）、第六透镜（E6）、第七透镜（E7）和第八透镜（E8）。第一透镜（E1）具有正光焦度；第二透镜（E2）具有负光焦度；第三透镜（E3）具有光焦度，其物侧面（S5）为凸面，像侧面（S6）为凹面；第四透镜（E4）具有光焦度；第五透镜（E5）具有光焦度，其物侧面（S9）为凸面；第六透镜（E6）具有正光焦度，其物侧面（S11）为凸面；第七透镜（E7）具有光焦度；第八透镜（E8）具有负光焦度。第二透镜（E2）的有效焦距f2与光学成像镜片组的总有效焦距f满足-2.5＜f2/f＜-1.5。

Description

光学成像镜片组
相关申请的交叉引用
本申请要求于2018年06月05日提交于中国国家知识产权局(CNIPA)的、专利申请号为201810575427.2的中国专利申请的优先权和权益，该中国专利申请通过引用整体并入本文。
技术领域
本申请涉及一种光学成像镜片组，更具体地，本申请涉及一种包括八片透镜的光学成像镜片组。
背景技术
目前，智能手机已经成为人们生活中所必不可少的电子设备之一，随着手机行业的迅猛发展，消费者对于搭载于手机上的摄像镜头的厚度要求越来越严格。而镜头越紧凑，其公差敏感度也就越高，组装难度相应增大。同时，随着电子设备的应用普及，消费者逐渐开始关注手机镜头在低照度条件下的拍照品质。
因此，需要一种具有良好的敏感性、高成像品质、大光圈的超薄手机镜头。
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光学成像镜片组。
一方面，本申请提供了这样一种光学成像镜片组，该镜片组沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、第七透镜和第八透镜。其中，第一透镜可具有正光焦度；第二透镜可具有负光焦度；第三透镜具有光焦度，其物侧面可为凸面，像侧面可为凹面；第四透镜具有光焦度；第五透镜具有光焦度，其物侧面可为凸面；第六透镜可具有正光焦度，其物侧面可为凸面；第七透镜具有光焦度；第八透镜具有负光焦度。
在一个实施方式中，第二透镜的有效焦距f2与光学成像镜片组的总有效焦距f可满足-2.5＜f2/f＜-1.5。
在一个实施方式中，光学成像镜片组的总有效焦距f与光学成像镜片组的入瞳直径EPD可满足f/EPD＜1.8。
在一个实施方式中，光学成像镜片组的总有效焦距f与第一透镜的有效焦距f1可满足1＜f/f1＜2。
在一个实施方式中，第六透镜的有效焦距f6与第六透镜的物侧面的曲率半径R11可满足1＜f6/R11＜2。
在一个实施方式中，光学成像镜片组的总有效焦距f与第八透镜的有效焦距f8可满足-2＜f/f8＜-1。
在一个实施方式中，光学成像镜片组的总有效焦距f与第一透镜的物侧面的曲率半径R1可满足2＜f/R1＜2.5。
在一个实施方式中，第三透镜的像侧面的曲率半径R6与第三透镜的物侧面的曲率半径R5可满足 0.5＜R6/R5＜1.5。
在一个实施方式中，第五透镜的物侧面的曲率半径R9与第五透镜的像侧面的曲率半径R10可满足1＜R9/R10＜2。
在一个实施方式中，第四透镜于光轴上的中心厚度CT4与第三透镜和第四透镜在光轴上的间隔距离T34可满足0.8＜CT4/T34＜1.8。
在一个实施方式中，第一透镜于光轴上的中心厚度CT1与第七透镜于光轴上的中心厚度CT7可满足0.5＜CT1/CT7＜1.5。
在一个实施方式中，第二透镜的物侧面的最大有效半径DT21与第四透镜的物侧面的最大有效半径DT41可满足1＜DT21/DT41＜1.5。
在一个实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第七透镜的像侧面可为凸面。
在一个实施方式中，第八透镜的像侧面可为凹面。
在一个实施方式中，第一透镜的物侧面至光学成像镜片组成像面的轴上距离TTL与光学成像镜片组成像面上有效像素区域对角线长的一半ImgH可满足TTL/ImgH＜1.95。
在一个实施方式中，光学成像镜片组的全视场角FOV可满足60°＜FOV＜75°。
本申请采用了多片(例如，六片)透镜，通过合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，使得上述光学成像镜片组具有大光圈、低敏感性和高成像品质等至少一个有益效果。
附图说明
结合附图，通过以下非限制性实施方式的详细描述，本申请的其他特征、目的和优点将变得更加明显。在附图中：
图1示出了根据本申请实施例1的光学成像镜片组的结构示意图；
图2A至图2D分别示出了实施例1的光学成像镜片组的轴上色差曲线、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的光学成像镜片组的结构示意图；
图4A至图4D分别示出了实施例2的光学成像镜片组的轴上色差曲线、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的光学成像镜片组的结构示意图；
图6A至图6D分别示出了实施例3的光学成像镜片组的轴上色差曲线、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的光学成像镜片组的结构示意图；
图8A至图8D分别示出了实施例4的光学成像镜片组的轴上色差曲线、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的光学成像镜片组的结构示意图；
图10A至图10D分别示出了实施例5的光学成像镜片组的轴上色差曲线、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的光学成像镜片组的结构示意图；
图12A至图12D分别示出了实施例6的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图13示出了根据本申请实施例7的光学成像镜片组的结构示意图；
图14A至图14D分别示出了实施例7的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图15示出了根据本申请实施例8的光学成像镜片组的结构示意图；
图16A至图16D分别示出了实施例8的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图17示出了根据本申请实施例9的光学成像镜片组的结构示意图；
图18A至图18D分别示出了实施例9的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图19示出了根据本申请实施例10的光学成像镜片组的结构示意图；
图20A至图20D分别示出了实施例10的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图21示出了根据本申请实施例11的光学成像镜片组的结构示意图；
图22A至图22D分别示出了实施例11的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图23示出了根据本申请实施例12的光学成像镜片组的结构示意图；
图24A至图24D分别示出了实施例12的光学成像镜片组的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图25示出了根据本申请实施例13的光学成像镜片组的结构示意图；
图26A至图26D分别示出了实施例13的光学成像镜片组的轴上色差曲线、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。每个透镜最靠近物侧的表面称为该透镜的物侧面，每个透镜最靠近像侧的表面称为该透镜的像侧面。
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、元件和/或部件，但不排除存在或附加有一个或多个其它特征、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。以下对本申请的特征、原理和其他方面进行详细描述。
根据本申请示例性实施方式的光学成像镜片组可包括例如八片具有光焦度的透镜，即，第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、第七透镜和第八透镜。这八片透镜沿着光轴由物侧至像侧依序排列。
在示例性实施方式中，第一透镜可具有正光焦度；第二透镜可具有负光焦度；第三透镜具有正光焦度或负光焦度，其物侧面可为凸面，像侧面可为凹面；第四透镜具有正光焦度或负光焦度；第五透镜具有正光焦度或负光焦度，其物侧面可为凸面；第六透镜可具有正光焦度，其物侧面可为凸面；第七透镜具有正光焦度或负光焦度；第八透镜可具有负光焦度。合理的光焦度分配，能减小成像面主光线入射角度，提高镜片组与感光元件和带通滤光片的匹配性。
在示例性实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面；第七透镜的像侧面可为凸面；第八透镜的像侧面可为凹面。进一步控制第二透镜、第七透镜和第八透镜的面型，能有效地平衡光学系统各个视场的像质，改善光学系统的敏感性，有利于保证光学成像镜片组的组装稳定性，并且有利于实现批量化的生产。
在示例性实施方式中，第一透镜的物侧面可为凸面。
在示例性实施方式中，第五透镜的像侧面可为凹面。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式f/EPD＜1.8，其中，f为光学成像镜片组的总有效焦距，EPD为光学成像镜片组的入瞳直径。更具体地，f和EPD进一步可满足1.4＜f/EPD＜1.7，例如，1.45≤f/EPD≤1.59。合理的控制光学成像镜片组的总有效焦距与入瞳直径的比值，可使镜片组具有较大光圈的优势，可增加系统单位时间内的通光量，增强暗环境下的成像效果。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式1＜f/f1＜2，其中，f为光学成像镜片组的总有效焦距，f1为第一透镜的有效焦距。更具体地，f和f1进一步可满足1＜f/f1＜1.5，例如，1.04≤f/f1≤1.20。有效控制光学成像镜片组的总有效焦距与第一透镜有效焦距的比值，可有效地校正光学系统的球差并提高第一透镜的加工成型工艺性。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式-2.5＜f2/f＜-1.5，其中，f2为第二透镜的有效焦距，f为光学成像镜片组的总有效焦距。更具体地，f2和f进一步可满足-2.01≤f2/f≤-1.54。合理控制第二透镜的有效焦距与光学成像镜片组的总有效焦距的比值，能够将第二透镜的球差贡献量控制在合理的水平内，使得系统的轴上视场区域具有良好的成像质量。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式1＜f6/R11＜2，其中，f6为第六透镜的有效焦距，R11为第六透镜的物侧面的曲率半径。更具体地，f6和R11进一步可满足1.19≤f6/R11≤1.88。合理控制第六透镜的有效焦距与第六透镜物侧面的曲率半径的比值，可以降低光学系统的轴外色差，降低第六透镜的敏感度，并且提高镜头的生产良率。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式-2＜f/f8＜-1，其中，f为光学成像镜片组的总有效焦距，f8为第八透镜的有效焦距。更具体地，f和f8进一步可满足-1.96≤f/f8≤-1.22。合理分配光学成像镜片组的总有效焦距与第八透镜的有效焦距的比值，能够合理地控制第八透镜的场曲贡献量，使得其平衡在合理的状态。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式TTL/ImgH＜1.95，其中，TTL为第一透镜的物侧面至光学成像镜片组的成像面的轴上距离，ImgH为光学成像镜片组的成像面上有效像素区域对角线长的一半。更具体地，TTL和ImgH进一步可满足1.73≤TTL/ImgH≤1.92。合理地控制光学成像镜片组的总长与像高的比值，可有效地压缩光学系统的尺寸，保证光学成像镜片组的小型化特性。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式0.5＜R6/R5＜1.5，其中，R6为第三透镜的像侧面的曲率半径，R5为第三透镜的物侧面的曲率半径。更具体地，R6和R5进一步可满足0.8＜R6/R5＜1.4，例如，0.97≤R6/R5≤1.30。合理的分配第三透镜像侧面的曲率半径与第三透镜物侧面的曲率半径的比值，使光学系统能更好地匹配芯片的主光线角度。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式1＜R9/R10＜2，其中，R9为第五透镜的物侧面的曲率半径，R10为第五透镜的像侧面的曲率半径。更具体地，R9和R10进一步可满足1＜R9/R10＜1.7，例如，1.01≤R9/R10≤1.55。合理控制第五透镜物侧面的曲率半径与第五透镜像侧面的曲率半径的比值，可减小光线偏折角，降低系统敏感性，同时减小彗差和畸变。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式2＜f/R1＜2.5，其中，f为光学成像镜片组的总有效焦距，R1为第一透镜的物侧面的曲率半径。更具体地，f和R1进一步可满足2.16≤f/R1≤2.33。合理控制光学成像镜片组的总有效焦距与第一透镜物侧面的曲率半径的比值，可减小系统球差，同时缩短系统总长，提高成像质量。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式0.8＜CT4/T34＜1.8，其中，CT4为第四透镜于光轴上的中心厚度，T34为第三透镜和第四透镜在光轴上的间隔距离。更具体地，CT4和T34进一步可满足0.8＜CT4/T34＜1.5，例如，0.91≤CT4/T34≤1.25。合理的控制第四透镜的中心厚度 与第三、四透镜的空气间隔的比值，有利于合理分配光学系统的轴上空间，降低厚度和间隙的公差敏感性，提高生产良率，并有效地平衡光学系统的慧差与象散。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式0.5＜CT1/CT7＜1.5，其中，CT1为第一透镜于光轴上的中心厚度，CT7为第七透镜于光轴上的中心厚度。更具体地，CT1和CT7进一步可满足0.87≤CT1/CT7≤1.32。合理控制第一透镜的中心厚度与第七透镜的中心厚度间的比值，可使光线偏折趋于缓和，降低敏感性，同时减小系统的象散、畸变和色差。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式60°＜FOV＜75°，其中，FOV为光学成像镜片组的全视场角。更具体地，FOV进一步可满足63.8°≤FOV≤70.1°。合理的控制光学系统的全视场角的大小，可以有效地控制光学系统的成像范围。
在示例性实施方式中，本申请的光学成像镜片组可满足条件式1＜DT21/DT41＜1.5，其中，DT21为第二透镜的物侧面的最大有效半径，DT41为第四透镜的物侧面的最大有效半径。更具体地，DT21和DT41进一步可满足1＜DT21/DT41＜1.2，例如，1.10≤DT21/DT41≤1.17。合理控制第二透镜物侧面的最大有效半径与第四透镜物侧面的最大有效半径的比值，可以减缓光学系统前端光线的屈折能力，有效的降低光学系统的敏感性。
在示例性实施方式中，上述光学成像镜片组还可包括至少一个光阑，以提升镜头的成像质量。可选地，光阑可设置在物侧与第一透镜之间。
可选地，上述光学成像镜片组还可包括用于校正色彩偏差的滤光片和/或用于保护位于成像面上的感光元件的保护玻璃。
根据本申请的上述实施方式的光学成像镜片组可采用多片镜片，例如上文所述的六片。通过合理分配各透镜的光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，可有效地缩小镜片组的体积、降低镜片组的敏感度并提高镜片组的可加工性，使得光学成像镜片组更有利于生产加工并且可适用于便携式电子产品。通过上述配置的光学成像镜片组还可具有大光圈、高成像品质等有益效果。
在本申请的实施方式中，各透镜多采用非球面镜面。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，可改变构成光学成像镜片组的透镜数量，来获得本说明书中描述的各个结果和优点。例如，虽然在实施例中以八个透镜为例进行了描述，但是该光学成像镜片组不限于包括八个透镜。如果需要，该光学成像镜片组还可包括其它数量的透镜。下面参照附图进一步描述可适用于上述实施方式的光学成像镜片组的具体实施例。
实施例1
以下参照图1至图2D描述根据本申请实施例1的光学成像镜片组。图1示出了根据本申请实施例1的光学成像镜片组的结构示意图。
如图1所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜 E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有负光焦度，其物侧面S7为凹面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表1示出了实施例1的光学成像镜片组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 PCTCN2019078961-appb-000001
表1
由表1可知，第一透镜E1至第八透镜E8中的任意一个透镜的物侧面和像侧面均为非球面。在本实施例中，各非球面透镜的面型x可利用但不限于以下非球面公式进行限定：
Figure PCTCN2019078961-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-S16的高次项系数A 4、A 6、A 8、A 10、A 12、A 14、A 16、A 18和A 20。
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.2458E-02 1.4778E-02 -3.4970E-02 4.2621E-02 -2.7040E-02 5.6770E-03 2.4880E-03 -1.6400E-03 2.5100E-04
S2 -2.7110E-02 -5.2550E-02 1.9100E-01 -3.0998E-01 3.0988E-01 -1.9968E-01 8.0241E-02 -1.8280E-02 1.7990E-03
S3 -4.4570E-02 -1.8850E-02 5.2299E-02 1.6131E-02 -1.0181E-01 1.1220E-01 -5.9960E-02 1.6044E-02 -1.6900E-03
S4 -2.2150E-02 -1.2927E-01 6.1186E-01 -1.7450E+00 3.1463E+00 -3.4917E+00 2.3270E+00 -8.5105E-01 1.3100E-01
S5 1.9181E-01 -5.7130E-01 1.4198E+00 -2.8937E+00 4.2414E+00 -4.1313E+00 2.5262E+00 -8.7102E-01 1.2847E-01
S6 4.3312E-02 -6.7580E-02 1.3449E-01 -3.5119E-01 6.9540E-01 -8.3885E-01 5.9836E-01 -2.3152E-01 3.7399E-02
S7 -4.8280E-02 -2.5200E-03 -2.0615E-01 6.6574E-01 -1.2310E+00 1.3834E+00 -9.3536E-01 3.5022E-01 -5.6130E-02
S8 -1.3226E-01 1.6129E-01 -3.7178E-01 3.9244E-01 -2.4741E-01 1.2606E-01 -6.3910E-02 2.3596E-02 -3.8900E-03
S9 -2.0856E-01 3.5053E-01 -4.8900E-01 2.9090E-01 1.7930E-02 -1.0656E-01 4.6391E-02 -5.4800E-03 -3.8000E-04
S10 -2.4538E-01 3.6371E-01 -4.4408E-01 3.0516E-01 -8.1410E-02 -2.5380E-02 2.3970E-02 -6.1700E-03 5.5400E-04
S11 -6.3970E-02 6.2557E-02 -6.6350E-02 1.7071E-02 1.2987E-02 -8.6900E-03 6.6900E-04 5.1900E-04 -9.3000E-05
S12 3.3326E-02 -8.0230E-02 1.1021E-01 -1.1441E-01 7.8548E-02 -3.3570E-02 8.5080E-03 -1.1600E-03 6.5000E-05
S13 1.6600E-02 -9.5370E-02 1.0471E-01 -5.4620E-02 1.1596E-02 1.9220E-03 -1.7000E-03 3.7200E-04 -2.9000E-05
S14 9.7501E-02 -1.5309E-01 1.4111E-01 -8.1440E-02 2.9366E-02 -6.4700E-03 8.1300E-04 -4.8000E-05 6.7500E-07
S15 -2.6963E-01 1.4873E-01 -3.4890E-02 -1.0770E-02 1.0375E-02 -3.1200E-03 4.7300E-04 -3.7000E-05 1.1500E-06
S16 -1.5689E-01 1.2708E-01 -7.0920E-02 2.7024E-02 -7.0600E-03 1.2350E-03 -1.4000E-04 8.7900E-06 -2.4000E-07
表2
表3给出实施例1中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
f1(mm) 3.98 f7(mm) 5.36
f2(mm) -7.46 f8(mm) -2.31
f3(mm) 25.53 f(mm) 4.25
f4(mm) -999.87 TTL(mm) 5.40
f5(mm) -18.46 ImgH(mm) 3.10
f6(mm) 5.12 FOV(°) 70.1
表3
图2A示出了实施例1的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图2B示出了实施例1的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图2C示出了实施例1的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图2D示出了实施例1的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图2A至图2D可知，实施例1所给出的光学成像镜片组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的光学成像镜片组。在本实施例及以下实施例中，为简洁起见，将省略部分与实施例1相似的描述。图3示出了根据本申请实施例2的光学成像镜片组的结构示意图。
如图3所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度， 其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表4示出了实施例2的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表5示出了可用于实施例2中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表6给出实施例2中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000003
表4
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.3496E-02 6.8900E-03 -1.2920E-02 5.9610E-03 1.0625E-02 -1.8270E-02 1.1595E-02 -3.5100E-03 4.0800E-04
S2 -3.9390E-02 1.2061E-02 7.1580E-03 9.2300E-04 -1.4120E-02 1.1161E-02 -3.3100E-03 1.7200E-04 5.5700E-05
S3 -5.1590E-02 5.5489E-02 -2.0123E-01 4.8507E-01 -6.3438E-01 4.9309E-01 -2.2736E-01 5.7343E-02 -6.0700E-03
S4 -3.7440E-02 -8.4200E-03 1.9224E-01 -8.8792E-01 2.0503E+00 -2.6204E+00 1.9151E+00 -7.4798E-01 1.2111E-01
S5 2.0005E-01 -6.2189E-01 1.5905E+00 -3.2985E+00 4.8906E+00 -4.8114E+00 2.9676E+00 -1.0315E+00 1.5343E-01
S6 5.9105E-02 -1.5527E-01 4.0795E-01 -9.2269E-01 1.4641E+00 -1.4891E+00 9.3132E-01 -3.2521E-01 4.8344E-02
S7 -4.7780E-02 1.6302E-02 -2.8231E-01 8.3917E-01 -1.4736E+00 1.5935E+00 -1.0448E+00 3.8185E-01 -6.0110E-02
S8 -1.1821E-01 1.8611E-01 -5.5360E-01 8.2277E-01 -8.0518E-01 5.6299E-01 -2.7074E-01 7.8213E-02 -1.0090E-02
S9 -2.2530E-01 4.7752E-01 -8.6222E-01 9.1403E-01 -6.2902E-01 3.1672E-01 -1.2206E-01 3.1429E-02 -3.7700E-03
S10 -2.5335E-01 4.4138E-01 -6.3241E-01 5.6598E-01 -3.1506E-01 1.1068E-01 -2.5040E-02 3.6330E-03 -2.7000E-04
S11 -7.0100E-02 9.7684E-02 -1.4410E-01 1.2202E-01 -7.8540E-02 4.1552E-02 -1.5720E-02 3.3890E-03 -3.0000E-04
S12 4.8777E-02 -1.2055E-01 1.4369E-01 -1.1504E-01 6.1956E-02 -2.1890E-02 4.7970E-03 -5.8000E-04 2.9400E-05
S13 3.3831E-02 -1.3780E-01 1.3769E-01 -5.5150E-02 -9.0000E-04 9.2690E-03 -3.6100E-03 6.0600E-04 -4.0000E-05
S14 1.0122E-01 -1.7690E-01 1.6370E-01 -9.0380E-02 3.0041E-02 -5.7900E-03 5.6500E-04 -1.4000E-05 -1.1000E-06
S15 -2.9379E-01 1.5204E-01 -7.1000E-03 -4.0370E-02 2.4753E-02 -6.9800E-03 1.0590E-03 -8.4000E-05 2.7300E-06
S16 -1.7619E-01 1.4706E-01 -8.0190E-02 2.9247E-02 -7.2600E-03 1.2130E-03 -1.3000E-04 8.0600E-06 -2.2000E-07
表5
f1(mm) 4.01 f7(mm) 4.81
f2(mm) -7.62 f8(mm) -2.26
f3(mm) 27.76 f(mm) 4.25
f4(mm) 53.28 TTL(mm) 5.40
f5(mm) -14.93 ImgH(mm) 2.95
f6(mm) 5.76 FOV(°) 67.9
表6
图4A示出了实施例2的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图4B示出了实施例2的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图4C示出了实施例2的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图4D示出了实施例2的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图4A至图4D可知，实施例2所给出的光学成像镜片组能够实现良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的光学成像镜片组。图5示出了根据本申请实施例3的光学成像镜片组的结构示意图。
如图5所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面；第七透镜E7具有正光焦度，其物侧面S13为凸面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表7示出了实施例3的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表8示出了可用于实施例3中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表9给出实施例3中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000004
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.2430E-02 1.4733E-02 -4.0100E-02 5.9375E-02 -5.2490E-02 2.7539E-02 -8.4100E-03 1.3160E-03 -8.7000E-05
S2 -4.8588E-02 7.9586E-02 -1.6862E-01 2.5551E-01 -2.4473E-01 1.4569E-01 -5.2660E-02 1.0561E-02 -9.0000E-04
S3 -7.1352E-02 1.6710E-01 -4.5848E-01 8.1308E-01 -8.8886E-01 6.1586E-01 -2.6318E-01 6.3140E-02 -6.4800E-03
S4 -6.5017E-02 9.9120E-02 -3.6000E-02 -5.3054E-01 1.5761E+00 -2.1247E+00 1.5693E+00 -6.1160E-01 9.8471E-02
S5 2.2779E-01 -7.8311E-01 2.0721E+00 -4.1630E+00 5.8291E+00 -5.4077E+00 3.1634E+00 -1.0509E+00 1.5051E-01
S6 7.2921E-02 -2.0203E-01 4.8680E-01 -9.7693E-01 1.4083E+00 -1.3354E+00 7.9366E-01 -2.6687E-01 3.8527E-02
S7 -4.7370E-02 1.9963E-02 -3.1857E-01 9.7435E-01 -1.7487E+00 1.9247E+00 -1.2798E+00 4.7221E-01 -7.4580E-02
S8 -1.2132E-01 2.1864E-01 -7.2366E-01 1.2212E+00 -1.3227E+00 9.7221E-01 -4.6939E-01 1.3294E-01 -1.6650E-02
S9 -2.2831E-01 5.1290E-01 -1.0208E+00 1.2105E+00 -9.1214E-01 4.6596E-01 -1.6516E-01 3.7556E-02 -4.0600E-03
S10 -2.5576E-01 4.5778E-01 -6.8735E-01 6.4856E-01 -3.7799E-01 1.3529E-01 -2.9250E-02 3.6520E-03 -2.2000E-04
S11 -4.9234E-02 1.8459E-02 3.0699E-02 -9.8640E-02 8.5054E-02 -3.0720E-02 2.9520E-03 7.8900E-04 -1.5000E-04
S12 9.5436E-02 -3.0357E-01 4.9077E-01 -4.9511E-01 3.1385E-01 -1.2408E-01 2.9576E-02 -3.8800E-03 2.1500E-04
S13 6.2714E-02 -2.4742E-01 3.0564E-01 -1.9991E-01 7.5144E-02 -1.5310E-02 1.1060E-03 1.2400E-04 -2.0000E-05
S14 1.0298E-01 -1.9224E-01 1.7461E-01 -8.7960E-02 2.3988E-02 -2.7900E-03 -1.5000E-04 7.1800E-05 -5.3000E-06
S15 -2.9287E-01 1.3801E-01 1.6184E-02 -5.5740E-02 2.9550E-02 -7.5500E-03 1.0180E-03 -6.7000E-05 1.5700E-06
S16 -1.8674E-01 1.5985E-01 -8.8430E-02 3.2821E-02 -8.3700E-03 1.4510E-03 -1.6000E-04 1.0700E-05 -3.1000E-07
表8
f1(mm) 3.95 f7(mm) 4.86
f2(mm) -7.34 f8(mm) -2.25
f3(mm) 29.51 f(mm) 4.23
f4(mm) 47.67 TTL(mm) 5.40
f5(mm) -14.83 ImgH(mm) 2.95
f6(mm) 5.67 FOV(°) 67.7
表9
图6A示出了实施例3的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图6B示出了实施例3的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图6C示出了实施例3的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图6D示出了实施例3的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图6A至图6D可知，实施例3所给出的光学成像镜片组能够实现良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的光学成像镜片组。图7示出了根据本申请实施例4的光学成像镜片组的结构示意图。
如图7所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凸面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表10示出了实施例4的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表11示出了可用于实施例4中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表12给出实施例4中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000005
Figure PCTCN2019078961-appb-000006
表10
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.3236E-02 -3.3000E-04 7.9600E-03 -2.8790E-02 4.5099E-02 -3.8470E-02 1.8290E-02 -4.5800E-03 4.6100E-04
S2 -4.2438E-02 -2.9190E-02 2.0208E-01 -3.7271E-01 3.9200E-01 -2.5761E-01 1.0411E-01 -2.3680E-02 2.3140E-03
S3 -4.2459E-02 -8.5190E-02 3.0751E-01 -4.5189E-01 4.0668E-01 -2.3556E-01 8.7501E-02 -1.9470E-02 2.0230E-03
S4 8.8443E-03 -2.2909E-01 8.0411E-01 -1.9278E+00 3.1549E+00 -3.3382E+00 2.1665E+00 -7.7624E-01 1.1693E-01
S5 2.0778E-01 -6.8242E-01 1.7017E+00 -3.3496E+00 4.7621E+00 -4.5509E+00 2.7422E+00 -9.3028E-01 1.3440E-01
S6 6.9236E-02 -1.8036E-01 4.2904E-01 -8.5260E-01 1.2584E+00 -1.2314E+00 7.5072E-01 -2.5616E-01 3.7133E-02
S7 -6.4060E-02 1.3047E-01 -7.2736E-01 1.9492E+00 -3.2285E+00 3.3519E+00 -2.1261E+00 7.5310E-01 -1.1440E-01
S8 -1.1474E-01 1.5441E-01 -4.4853E-01 7.0958E-01 -7.8287E-01 6.1313E-01 -3.1642E-01 9.4382E-02 -1.2260E-02
S9 -1.8014E-01 2.5283E-01 -3.4036E-01 2.2815E-01 -6.2110E-02 2.3130E-03 -4.6100E-03 4.6270E-03 -9.8000E-04
S10 -2.0598E-01 2.4301E-01 -2.3896E-01 1.1382E-01 1.3746E-02 -4.6850E-02 2.3864E-02 -5.2700E-03 4.4100E-04
S11 -4.9240E-02 2.2444E-02 -1.1150E-02 -2.1060E-02 3.5061E-02 -2.2870E-02 7.4480E-03 -1.1900E-03 7.4400E-05
S12 1.8248E-02 -2.7360E-02 1.8711E-02 -2.3330E-02 2.2757E-02 -1.2450E-02 3.7160E-03 -5.7000E-04 3.4100E-05
S13 5.6483E-04 -3.5540E-02 4.0858E-02 -2.6050E-02 9.4620E-03 -1.2900E-03 -2.9000E-04 1.2200E-04 -1.2000E-05
S14 6.9615E-02 -1.1847E-01 1.1553E-01 -7.1280E-02 2.8190E-02 -7.0500E-03 1.0720E-03 -9.0000E-05 3.1800E-06
S15 -2.9442E-01 1.7267E-01 -4.8060E-02 -4.3000E-03 7.9230E-03 -2.5300E-03 3.8900E-04 -3.0000E-05 9.4600E-07
S16 -1.5286E-01 1.1971E-01 -6.2990E-02 2.2825E-02 -5.7300E-03 9.7100E-04 -1.1000E-04 6.5900E-06 -1.8000E-07
表11
f1(mm) 3.99 f7(mm) 5.36
f2(mm) -8.25 f8(mm) -2.29
f3(mm) -1464.70 f(mm) 4.29
f4(mm) 26.91 TTL(mm) 5.50
f5(mm) -16.26 ImgH(mm) 3.10
f6(mm) 5.21 FOV(°) 69.6
表12
图8A示出了实施例4的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图8B示出了实施例4的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图8C示出了实施例4的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图8D示出了实施例4的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图8A至图8D可知，实施例4所给出的光学成像镜片组能够实现良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的光学成像镜片组。图9示出了根据本申请实施例5的光学成像镜片组的结构示意图。
如图9所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜 E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面；第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表13示出了实施例5的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表14示出了可用于实施例5中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表15给出实施例5中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000007
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.1613E-02 1.4051E-02 -3.7030E-02 5.1206E-02 -4.1440E-02 1.9396E-02 -5.0300E-03 5.7700E-04 -1.5000E-05
S2 -2.9930E-02 -4.7870E-02 1.8807E-01 -3.0138E-01 2.8756E-01 -1.7337E-01 6.4555E-02 -1.3570E-02 1.2320E-03
S3 -4.3190E-02 -5.9330E-02 2.3421E-01 -3.5719E-01 3.3264E-01 -1.9301E-01 6.8377E-02 -1.3690E-02 1.2140E-03
S4 -3.3590E-02 -8.6560E-02 4.6324E-01 -1.2172E+00 2.0002E+00 -2.0708E+00 1.3218E+00 -4.7142E-01 7.1522E-02
S5 2.1597E-01 -6.8824E-01 1.6564E+00 -3.0386E+00 3.9386E+00 -3.4499E+00 1.9485E+00 -6.3636E-01 9.0679E-02
S6 6.0875E-02 -1.4753E-01 3.2744E-01 -6.3675E-01 9.0983E-01 -8.7236E-01 5.3704E-01 -1.9045E-01 2.9269E-02
S7 -5.4170E-02 8.3583E-02 -4.9242E-01 1.3055E+00 -2.1555E+00 2.2358E+00 -1.4215E+00 5.0716E-01 -7.8180E-02
S8 -1.6352E-01 2.1442E-01 -4.8768E-01 7.8922E-01 -9.3000E-01 7.4914E-01 -3.8189E-01 1.1011E-01 -1.3730E-02
S9 -1.5494E-01 9.3535E-02 -5.8250E-02 3.6686E-02 -6.5020E-02 8.4655E-02 -5.5590E-02 1.8080E-02 -2.3600E-03
S10 -1.4099E-01 1.6221E-02 1.1179E-01 -1.9310E-01 1.7434E-01 -9.7240E-02 3.2995E-02 -6.1300E-03 4.7200E-04
S11 -1.1060E-02 -5.4550E-02 5.4545E-02 -6.1420E-02 5.4135E-02 -2.9790E-02 9.2210E-03 -1.4600E-03 9.1700E-05
S12 2.3822E-02 -3.1200E-02 1.9283E-02 -2.1840E-02 2.1547E-02 -1.2010E-02 3.6360E-03 -5.6000E-04 3.4200E-05
S13 -1.1100E-02 -3.2880E-02 4.3522E-02 -2.8930E-02 1.0547E-02 -1.3500E-03 -3.8000E-04 1.5200E-04 -1.5000E-05
S14 9.2019E-02 -1.4600E-01 1.3001E-01 -8.0160E-02 3.3423E-02 -8.9500E-03 1.4540E-03 -1.3000E-04 4.8500E-06
S15 -2.3061E-01 1.0900E-01 -2.7520E-02 -8.3000E-04 3.5710E-03 -1.2100E-03 1.9200E-04 -1.5000E-05 4.7900E-07
S16 -1.4172E-01 1.0443E-01 -5.4850E-02 2.0512E-02 -5.3400E-03 9.3300E-04 -1.0000E-04 6.5400E-06 -1.8000E-07
表14
f1(mm) 3.93 f7(mm) 5.89
f2(mm) -7.13 f8(mm) -2.35
f3(mm) 30.30 f(mm) 4.39
f4(mm) 87.57 TTL(mm) 5.50
f5(mm) 1005.25 ImgH(mm) 2.95
f6(mm) 7.13 FOV(°) 66.2
表15
图10A示出了实施例5的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图10B示出了实施例5的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图10C示出了实施例5的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图10D示出了实施例5的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图10A至图10D，实施例5所给出的光学成像镜片组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的光学成像镜片组。图11示出了根据本申请实施例6的光学成像镜片组的结构示意图。
如图11所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有负光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凸面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表16示出了实施例6的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表17示出了可用于实施例6中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表18给出实施例6中各透镜的 有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000008
表16
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.1514E-02 1.5291E-02 -3.9210E-02 5.5048E-02 -4.7020E-02 2.4644E-02 -7.8100E-03 1.3420E-03 -9.9000E-05
S2 -3.1900E-02 -5.4070E-02 2.1242E-01 -3.3540E-01 3.1402E-01 -1.8539E-01 6.7534E-02 -1.3870E-02 1.2260E-03
S3 -3.8750E-02 -6.0590E-02 2.1703E-01 -3.1115E-01 2.7763E-01 -1.6104E-01 6.0427E-02 -1.3560E-02 1.3920E-03
S4 -2.6130E-02 -9.8940E-02 4.9380E-01 -1.3361E+00 2.2686E+00 -2.3869E+00 1.5107E+00 -5.2219E-01 7.5323E-02
S5 2.2633E-01 -7.3070E-01 1.7077E+00 -3.0471E+00 3.8994E+00 -3.3748E+00 1.8644E+00 -5.8694E-01 7.9426E-02
S6 6.9303E-02 -2.0001E-01 4.8992E-01 -1.0330E+00 1.5948E+00 -1.6083E+00 1.0045E+00 -3.5083E-01 5.2200E-02
S7 -3.9820E-02 2.3639E-02 -3.2390E-01 9.6340E-01 -1.6760E+00 1.7977E+00 -1.1662E+00 4.2012E-01 -6.4920E-02
S8 -1.3340E-01 2.1237E-01 -4.8598E-01 5.4939E-01 -3.8946E-01 2.1217E-01 -9.6260E-02 2.9964E-02 -4.3200E-03
S9 -2.1965E-01 4.1812E-01 -5.7146E-01 3.4493E-01 3.0680E-03 -1.2126E-01 6.6467E-02 -1.4720E-02 1.1390E-03
S10 -2.5947E-01 3.8198E-01 -4.2255E-01 2.6560E-01 -6.7780E-02 -1.8760E-02 1.7977E-02 -4.6000E-03 4.1100E-04
S11 -5.7190E-02 1.7890E-02 -2.7500E-03 -4.5750E-02 6.4852E-02 -4.2660E-02 1.4672E-02 -2.5200E-03 1.7000E-04
S12 2.8400E-02 -3.1770E-02 1.5853E-02 -1.6160E-02 1.5893E-02 -8.3400E-03 2.1980E-03 -2.5000E-04 6.4500E-06
S13 -1.1860E-02 -4.4910E-02 6.3555E-02 -4.4330E-02 1.6191E-02 -1.0800E-03 -1.4200E-03 4.8700E-04 -5.0000E-05
S14 7.7120E-03 -7.7160E-02 8.1402E-02 -5.0590E-02 2.0267E-02 -5.2800E-03 8.5700E-04 -7.8000E-05 3.0300E-06
S15 -3.3263E-01 2.0380E-01 -7.4140E-02 1.5749E-02 -9.7000E-04 -3.5000E-04 8.8300E-05 -8.2000E-06 2.8500E-07
S16 -1.9846E-01 1.4521E-01 -7.1930E-02 2.5043E-02 -6.1000E-03 1.0160E-03 -1.1000E-04 6.8900E-06 -1.9000E-07
表17
f1(mm) 3.91 f7(mm) -1000.00
f2(mm) -7.09 f8(mm) -3.48
f3(mm) 30.28 f(mm) 4.47
f4(mm) 125.15 TTL(mm) 5.50
f5(mm) -29.32 ImgH(mm) 2.90
f6(mm) 4.72 FOV(°) 63.8
表18
图12A示出了实施例6的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图12B示出了实施例6的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图12C示出了实施例6的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图12D示出了实施例6的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图12A至图12D，实施例6所给出的光学成像镜片组能够实现良好的成像品质。
实施例7
以下参照图13至图14D描述了根据本申请实施例7的光学成像镜片组。图13示出了根据本申请实施例7的光学成像镜片组的结构示意图。
如图13所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表19示出了实施例7的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表20示出了可用于实施例7中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表21给出实施例7中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000009
Figure PCTCN2019078961-appb-000010
表19
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.2278E-02 3.0388E-02 -9.8850E-02 1.7746E-01 -1.9336E-01 1.2885E-01 -5.1340E-02 1.1097E-02 -1.0000E-03
S2 -3.6655E-02 -6.5980E-02 3.2042E-01 -6.1949E-01 7.0175E-01 -4.9536E-01 2.1405E-01 -5.1870E-02 5.4040E-03
S3 -3.2310E-02 -2.0724E-01 8.3689E-01 -1.5929E+00 1.8308E+00 -1.3214E+00 5.8615E-01 -1.4604E-01 1.5649E-02
S4 1.2177E-01 -8.7461E-01 2.7000E+00 -5.1742E+00 6.4646E+00 -5.2471E+00 2.6697E+00 -7.7128E-01 9.5850E-02
S5 2.5976E-01 -9.6750E-01 2.3720E+00 -3.9963E+00 4.5780E+00 -3.4331E+00 1.6095E+00 -4.2379E-01 4.7207E-02
S6 4.6367E-02 -1.5354E-01 3.7324E-01 -7.7673E-01 1.2082E+00 -1.2381E+00 8.0727E-01 -3.0934E-01 5.4580E-02
S7 -5.5542E-02 2.8260E-03 -1.7510E-01 3.1205E-01 -1.9879E-01 -1.5517E-01 3.6059E-01 -2.3744E-01 5.5535E-02
S8 -7.9369E-02 -1.2600E-03 8.7366E-02 -4.7668E-01 9.0022E-01 -9.0636E-01 5.3264E-01 -1.7417E-01 2.4660E-02
S9 -1.4880E-01 1.4770E-01 -6.5180E-02 -2.4269E-01 4.6265E-01 -3.8634E-01 1.8197E-01 -4.7990E-02 5.5500E-03
S10 -1.7654E-01 1.7688E-01 -1.3086E-01 1.3730E-03 8.0040E-02 -6.6170E-02 2.5570E-02 -4.9600E-03 3.8700E-04
S11 -8.3998E-02 5.6520E-02 -6.4740E-02 4.7162E-02 -2.0240E-02 1.7770E-03 1.7310E-03 -5.6000E-04 5.0900E-05
S12 1.7270E-03 1.4927E-02 -4.1110E-02 4.7383E-02 -3.1480E-02 1.2942E-02 -3.3300E-03 5.0200E-04 -3.5000E-05
S13 7.0437E-03 -2.5180E-02 1.8582E-02 6.8430E-03 -2.3370E-02 1.9055E-02 -7.7100E-03 1.5780E-03 -1.3000E-04
S14 1.2079E-01 -1.8152E-01 1.7994E-01 -1.1247E-01 4.3109E-02 -1.0180E-02 1.4580E-03 -1.2000E-04 4.0200E-06
S15 -2.2118E-01 6.4740E-02 5.2149E-02 -6.3010E-02 2.8685E-02 -6.9500E-03 9.4300E-04 -6.8000E-05 2.0000E-06
S16 -1.5551E-01 1.1406E-01 -5.6860E-02 1.9354E-02 -4.5600E-03 7.2800E-04 -7.5000E-05 4.4300E-06 -1.1000E-07
表20
f1(mm) 4.15 f7(mm) 5.01
f2(mm) -8.54 f8(mm) -2.39
f3(mm) 21.64 f(mm) 4.33
f4(mm) 283.89 TTL(mm) 5.38
f5(mm) -27.87 ImgH(mm) 3.10
f6(mm) 6.94 FOV(°) 68.7
表21
图14A示出了实施例7的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图14B示出了实施例7的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图14C示出了实施例7的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图14D示出了实施例7的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图14A至图14D，实施例7所给出的光学成像镜片组能够实现良好的成像品质。
实施例8
以下参照图15至图16D描述了根据本申请实施例8的光学成像镜片组。图15示出了根据本申请实施例8的光学成像镜片组的结构示意图。
如图15所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑 STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表22示出了实施例8的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表23示出了可用于实施例8中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表24给出实施例8中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000011
表22
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.3965E-02 1.1592E-02 -3.7110E-02 5.9565E-02 -5.5930E-02 3.0199E-02 -8.9100E-03 1.1230E-03 -2.2000E-05
S2 -2.9751E-02 -1.1017E-01 4.3407E-01 -7.7398E-01 8.2849E-01 -5.6059E-01 2.3457E-01 -5.5440E-02 5.6570E-03
S3 -1.2777E-02 -3.2165E-01 1.0962E+00 -1.9124E+00 2.0684E+00 -1.4319E+00 6.1966E-01 -1.5297E-01 1.6469E-02
S4 9.4357E-02 -6.9962E-01 2.0681E+00 -3.8505E+00 4.8319E+00 -4.0763E+00 2.2176E+00 -6.9767E-01 9.5445E-02
S5 2.1792E-01 -6.9095E-01 1.5627E+00 -2.6611E+00 3.3588E+00 -2.9703E+00 1.7204E+00 -5.7579E-01 8.3364E-02
S6 4.6728E-02 -1.4713E-01 3.9337E-01 -8.9667E-01 1.4761E+00 -1.5666E+00 1.0224E+00 -3.7344E-01 5.8922E-02
S7 -6.0492E-02 1.0224E-02 -2.3562E-01 6.7496E-01 -1.1270E+00 1.1641E+00 -7.2649E-01 2.4907E-01 -3.6150E-02
S8 -8.0130E-02 -8.3000E-04 -1.2940E-02 -1.4867E-01 3.8489E-01 -4.1899E-01 2.4668E-01 -7.8030E-02 1.0483E-02
S9 -1.6680E-01 2.5519E-01 -3.5580E-01 1.9575E-01 5.5094E-02 -1.3420E-01 7.4626E-02 -1.8810E-02 1.8340E-03
S10 -2.1518E-01 3.2142E-01 -4.1437E-01 3.2934E-01 -1.4972E-01 3.0263E-02 2.2080E-03 -2.0000E-03 2.3800E-04
S11 -1.0369E-01 1.1704E-01 -1.5614E-01 1.2983E-01 -6.5490E-02 1.6789E-02 -1.2100E-03 -2.5000E-04 3.7000E-05
S12 2.2708E-03 1.2226E-02 -4.0030E-02 4.5900E-02 -2.9240E-02 1.1251E-02 -2.6500E-03 3.6000E-04 -2.2000E-05
S13 7.9232E-03 -3.7210E-02 4.6693E-02 -3.5210E-02 1.5603E-02 -3.2600E-03 -9.0000E-05 1.6000E-04 -2.0000E-05
S14 1.1839E-01 -1.7821E-01 1.7248E-01 -1.0737E-01 4.1593E-02 -1.0000E-02 1.4640E-03 -1.2000E-04 4.2500E-06
S15 -2.1504E-01 5.8698E-02 5.6496E-02 -6.7020E-02 3.1168E-02 -7.7700E-03 1.0840E-03 -8.0000E-05 2.4300E-06
S16 -1.5421E-01 1.1692E-01 -5.9770E-02 2.0824E-02 -4.9900E-03 8.1000E-04 -8.4000E-05 5.0700E-06 -1.3000E-07
表23
f1(mm) 4.16 f7(mm) 4.62
f2(mm) -8.54 f8(mm) -2.33
f3(mm) 22.32 f(mm) 4.41
f4(mm) 294.13 TTL(mm) 5.49
f5(mm) -20.75 ImgH(mm) 2.85
f6(mm) 7.20 FOV(°) 64.1
表24
图16A示出了实施例8的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图16B示出了实施例8的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图16C示出了实施例8的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图16D示出了实施例8的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图16A至图16D，实施例8所给出的光学成像镜片组能够实现良好的成像品质。
实施例9
以下参照图17至图18D描述了根据本申请实施例9的光学成像镜片组。图17示出了根据本申请实施例9的光学成像镜片组的结构示意图。
如图17所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凹面，像侧面S8为凸面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凸面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表25示出了实施例9的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表26示出了可用于实施例9中各非球面镜面的高次项 系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表27给出实施例9中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000012
表25
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.4560E-02 3.6430E-03 -9.1500E-03 5.3850E-03 6.6300E-03 -1.3930E-02 9.7050E-03 -3.1700E-03 3.9300E-04
S2 -3.5603E-02 -5.6577E-02 2.6133E-01 -4.7676E-01 5.1959E-01 -3.5899E-01 1.5338E-01 -3.6950E-02 3.8330E-03
S3 -3.0028E-02 -1.7432E-01 5.9077E-01 -9.8090E-01 1.0352E+00 -7.1505E-01 3.1399E-01 -7.9570E-02 8.8670E-03
S4 4.8688E-02 -4.1568E-01 1.2247E+00 -2.4501E+00 3.4666E+00 -3.3051E+00 1.9921E+00 -6.7711E-01 9.8043E-02
S5 1.9135E-01 -5.3366E-01 1.2142E+00 -2.3633E+00 3.4881E+00 -3.4794E+00 2.1731E+00 -7.5823E-01 1.1218E-01
S6 4.5773E-02 -1.4572E-01 4.5930E-01 -1.1896E+00 2.0648E+00 -2.2442E+00 1.4762E+00 -5.3730E-01 8.3353E-02
S7 -6.0186E-02 -6.5220E-03 -1.5252E-01 4.8977E-01 -8.9035E-01 9.8820E-01 -6.6019E-01 2.4299E-01 -3.8130E-02
S8 -7.2912E-02 -3.7377E-02 4.9802E-02 -1.8802E-01 3.5815E-01 -3.5011E-01 1.9164E-01 -5.6830E-02 7.1700E-03
S9 -1.6077E-01 2.2087E-01 -2.9866E-01 1.5345E-01 6.4377E-02 -1.2350E-01 6.3330E-02 -1.4240E-02 1.1350E-03
S10 -2.1452E-01 3.0489E-01 -3.8123E-01 2.9415E-01 -1.2231E-01 1.4120E-02 8.3390E-03 -3.2600E-03 3.4300E-04
S11 -1.0527E-01 1.1506E-01 -1.4980E-01 1.2261E-01 -5.9250E-02 1.3334E-02 -1.4000E-04 -4.2000E-04 4.7700E-05
S12 3.8336E-03 1.2798E-02 -4.3040E-02 4.9561E-02 -3.1450E-02 1.1966E-02 -2.7600E-03 3.5900E-04 -2.1000E-05
S13 6.5208E-03 -3.8916E-02 4.8324E-02 -3.7430E-02 1.8117E-02 -5.0200E-03 6.0900E-04 1.3500E-05 -7.4000E-06
S14 1.1907E-01 -1.8040E-01 1.6956E-01 -1.0227E-01 3.8336E-02 -8.8800E-03 1.2450E-03 -9.7000E-05 3.2600E-06
S15 -2.0698E-01 4.5547E-02 6.8280E-02 -7.3070E-02 3.2989E-02 -8.0800E-03 1.1130E-03 -8.1000E-05 2.4300E-06
S16 -1.5538E-01 1.1792E-01 -5.9640E-02 2.0506E-02 -4.8500E-03 7.7700E-04 -8.0000E-05 4.7900E-06 -1.2000E-07
表26
f1(mm) 4.13 f7(mm) 4.61
f2(mm) -8.35 f8(mm) -2.29
f3(mm) 22.28 f(mm) 4.42
f4(mm) 200.41 TTL(mm) 5.52
f5(mm) -18.94 ImgH(mm) 3.10
f6(mm) 7.00 FOV(°) 68.2
表27
图18A示出了实施例9的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图18B示出了实施例9的光学成像镜片组的象散曲线，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的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图18D示出了实施例9的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图18A至图18D，实施例9所给出的光学成像镜片组能够实现良好的成像品质。
实施例10
以下参照图19至图20D描述了根据本申请实施例10的光学成像镜片组。图19示出了根据本申请实施例10的光学成像镜片组的结构示意图。
如图19所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凸面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表28示出了实施例10的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表29示出了可用于实施例10中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表30给出实施例10中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000013
Figure PCTCN2019078961-appb-000014
表28
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.2497E-02 7.9350E-04 -5.7700E-03 -1.2900E-03 1.3523E-02 -1.7690E-02 1.0633E-02 -3.1900E-03 3.8300E-04
S2 -1.8351E-03 -1.2870E-01 3.6010E-01 -5.5600E-01 5.4708E-01 -3.5039E-01 1.4090E-01 -3.2260E-02 3.2060E-03
S3 8.3016E-04 -2.3689E-01 6.3009E-01 -9.4715E-01 9.4721E-01 -6.2971E-01 2.6600E-01 -6.4470E-02 6.8370E-03
S4 7.7612E-03 -2.1627E-01 5.7389E-01 -1.0057E+00 1.2588E+00 -1.0339E+00 5.3163E-01 -1.5716E-01 2.0563E-02
S5 1.2229E-01 -2.9982E-01 6.6021E-01 -1.2223E+00 1.6557E+00 -1.4503E+00 7.8581E-01 -2.4180E-01 3.2569E-02
S6 2.5894E-02 -7.8024E-02 3.5383E-01 -1.0022E+00 1.7472E+00 -1.8796E+00 1.2260E+00 -4.4546E-01 6.9455E-02
S7 -5.2071E-02 -8.3865E-02 2.1994E-01 -5.1062E-01 7.8622E-01 -7.9636E-01 5.0616E-01 -1.8272E-01 2.8410E-02
S8 -4.6189E-02 -1.9104E-01 4.7551E-01 -8.3700E-01 9.4551E-01 -6.7268E-01 2.9431E-01 -7.2900E-02 7.8590E-03
S9 -1.2123E-01 2.3109E-02 6.7057E-02 -1.2606E-01 6.3300E-02 3.9612E-02 -6.0530E-02 2.5982E-02 -3.9200E-03
S10 -1.7590E-01 1.6877E-01 -2.1100E-01 2.4754E-01 -2.2527E-01 1.4407E-01 -6.0500E-02 1.4721E-02 -1.5400E-03
S11 -9.0720E-02 8.1686E-02 -1.4986E-01 1.7565E-01 -1.3963E-01 7.6784E-02 -2.8620E-02 6.3260E-03 -6.0000E-04
S12 1.1813E-02 -3.3157E-02 2.9749E-02 -6.8800E-03 -9.3200E-03 9.2240E-03 -3.7100E-03 7.2800E-04 -5.8000E-05
S13 3.1046E-02 -9.6372E-02 1.0573E-01 -5.2490E-02 3.8100E-03 8.3130E-03 -4.0800E-03 8.0100E-04 -6.0000E-05
S14 1.2984E-01 -1.9884E-01 1.8938E-01 -1.2096E-01 5.2841E-02 -1.6200E-02 3.3960E-03 -4.3000E-04 2.5000E-05
S15 -2.0916E-01 5.5013E-02 4.1778E-02 -4.6670E-02 1.9330E-02 -3.9700E-03 3.8100E-04 -9.1000E-06 -5.8000E-07
S16 -1.3601E-01 9.6248E-02 -4.6250E-02 1.5191E-02 -3.4700E-03 5.3900E-04 -5.4000E-05 3.1900E-06 -8.2000E-08
表29
f1(mm) 3.76 f7(mm) 4.90
f2(mm) -6.90 f8(mm) -2.29
f3(mm) 31.31 f(mm) 4.49
f4(mm) 891.37 TTL(mm) 5.60
f5(mm) -27.88 ImgH(mm) 3.10
f6(mm) 6.46 FOV(°) 67.5
表30
图20A示出了实施例10的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图20B示出了实施例10的光学成像镜片组的象散曲线，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的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图20D示出了实施例10的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图20A至图20D，实施例10所给出的光学成像镜片组能够实现良好的成像品质。
实施例11
以下参照图21至图22D描述了根据本申请实施例11的光学成像镜片组。图21示出了根据本申请实施例11的光学成像镜片组的结构示意图。
如图21所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表31示出了实施例11的光学成像镜片组的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表32示出了可用于实施例11中各非球面镜面的高次项系数，其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表33给出实施例11中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000015
表31
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.3352E-02 6.0499E-03 -1.9520E-02 2.9010E-02 -2.4860E-02 1.1718E-02 -2.8200E-03 2.1700E-04 4.1100E-06
S2 -4.5821E-02 -1.0260E-02 1.5787E-01 -3.2140E-01 3.5994E-01 -2.4941E-01 1.0574E-01 -2.5140E-02 2.5600E-03
S3 -4.8976E-02 -1.1439E-01 4.7434E-01 -8.0265E-01 8.2123E-01 -5.3370E-01 2.1643E-01 -5.0180E-02 5.1070E-03
S4 5.4774E-02 -3.7591E-01 1.0237E+00 -1.9238E+00 2.5848E+00 -2.3982E+00 1.4434E+00 -4.9754E-01 7.3435E-02
S5 1.7348E-01 -4.3615E-01 8.5651E-01 -1.5366E+00 2.2381E+00 -2.2902E+00 1.4983E+00 -5.5010E-01 8.5215E-02
S6 5.8907E-02 -1.5533E-01 3.8456E-01 -8.8219E-01 1.5056E+00 -1.6554E+00 1.1117E+00 -4.1315E-01 6.5078E-02
S7 -7.1301E-02 1.0760E-01 -6.3979E-01 1.7536E+00 -2.9836E+00 3.1981E+00 -2.0954E+00 7.6587E-01 -1.1988E-01
S8 -8.3757E-02 5.0032E-02 -1.8682E-01 2.5233E-01 -2.0587E-01 1.1649E-01 -4.5730E-02 1.1059E-02 -1.2400E-03
S9 -1.6091E-01 2.3471E-01 -3.8528E-01 4.0101E-01 -3.2026E-01 2.2222E-01 -1.1548E-01 3.5121E-02 -4.4900E-03
S10 -1.8888E-01 2.4301E-01 -2.9878E-01 2.1866E-01 -8.6470E-02 1.8063E-02 -4.1000E-03 1.6340E-03 -2.7000E-04
S11 -7.6172E-02 2.8172E-02 9.9940E-03 -5.3180E-02 4.2197E-02 -7.8700E-03 -5.4500E-03 2.8120E-03 -3.7000E-04
S12 4.0805E-02 -1.3905E-01 2.3674E-01 -2.5168E-01 1.6766E-01 -6.9160E-02 1.7054E-02 -2.3000E-03 1.2900E-04
S13 4.5821E-02 -1.4446E-01 1.8655E-01 -1.3933E-01 6.3103E-02 -1.6910E-02 2.4480E-03 -1.5000E-04 -2.0000E-07
S14 1.3335E-01 -2.2602E-01 2.3287E-01 -1.5741E-01 7.1346E-02 -2.2200E-02 4.6450E-03 -5.9000E-04 3.3500E-05
S15 -2.0740E-01 -2.2510E-03 1.5625E-01 -1.5324E-01 7.6531E-02 -2.2730E-02 4.0990E-03 -4.2000E-04 1.8700E-05
S16 -1.7011E-01 1.3027E-01 -6.4400E-02 2.1239E-02 -4.7600E-03 7.1800E-04 -7.0000E-05 3.9100E-06 -9.6000E-08
表32
f1(mm) 4.09 f7(mm) 4.73
f2(mm) -8.92 f8(mm) -2.26
f3(mm) -1000.21 f(mm) 4.44
f4(mm) 27.20 TTL(mm) 5.54
f5(mm) -25.80 ImgH(mm) 2.90
f6(mm) 6.53 FOV(°) 64.7
表33
图22A示出了实施例11的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图22B示出了实施例11的光学成像镜片组的象散曲线，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的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图22D示出了实施例11的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图22A至图22D，实施例11所给出的光学成像镜片组能够实现良好的成像品质。
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的光学成像镜片组。图23示出了根据本申请实施例12的光学成像镜片组的结构示意图。
如图23所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有负光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有正光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凹面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表34示出了实施例12的光学成像镜片组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示出了可用于实施例12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36给出实施例12中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000016
表34
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.4075E-02 1.1409E-02 -3.7230E-02 5.9326E-02 -5.5790E-02 3.1026E-02 -1.0090E-02 1.7210E-03 -1.3000E-04
S2 -2.8722E-02 -7.8227E-02 2.9839E-01 -5.1122E-01 5.2874E-01 -3.4662E-01 1.4053E-01 -3.2170E-02 3.1760E-03
S3 -2.2456E-02 -2.5308E-01 8.5303E-01 -1.4446E+00 1.5247E+00 -1.0305E+00 4.3466E-01 -1.0446E-01 1.0953E-02
S4 6.9935E-02 -5.5561E-01 1.6276E+00 -3.0140E+00 3.7636E+00 -3.1572E+00 1.7162E+00 -5.4322E-01 7.5125E-02
S5 2.0194E-01 -5.7498E-01 1.2285E+00 -2.0447E+00 2.5132E+00 -2.1623E+00 1.2384E+00 -4.1720E-01 6.1447E-02
S6 4.5128E-02 -1.3399E-01 3.7450E-01 -9.0036E-01 1.5110E+00 -1.6297E+00 1.0909E+00 -4.1149E-01 6.7114E-02
S7 -6.5216E-02 3.8145E-02 -3.0966E-01 8.0964E-01 -1.2956E+00 1.2989E+00 -7.9092E-01 2.6686E-01 -3.8650E-02
S8 -1.2240E-01 1.2279E-01 -2.5614E-01 2.3419E-01 -5.9860E-02 -7.5630E-02 8.3455E-02 -3.4890E-02 5.5910E-03
S9 -1.5838E-01 1.9366E-01 -2.3298E-01 1.1525E-01 3.1196E-02 -7.1670E-02 3.9502E-02 -1.0240E-02 1.0570E-03
S10 -1.8357E-01 1.9531E-01 -1.9585E-01 1.1607E-01 -2.6590E-02 -1.2980E-02 1.1481E-02 -3.1500E-03 3.0500E-04
S11 -6.3243E-02 2.2703E-02 -4.4760E-02 3.9450E-02 -1.5510E-02 -2.8200E-03 4.1090E-03 -1.1100E-03 9.7500E-05
S12 8.1513E-03 -9.0000E-04 -2.7710E-02 4.1370E-02 -3.0550E-02 1.3391E-02 -3.5700E-03 5.3800E-04 -3.5000E-05
S13 6.4146E-03 -4.0118E-02 5.7092E-02 -5.2130E-02 3.1990E-02 -1.2450E-02 2.8580E-03 -3.5000E-04 1.6300E-05
S14 1.3679E-01 -1.9505E-01 1.8358E-01 -1.1764E-01 4.8703E-02 -1.2870E-02 2.1070E-03 -1.9000E-04 7.7500E-06
S15 -1.6705E-01 1.7522E-02 6.7342E-02 -6.3850E-02 2.7978E-02 -6.7600E-03 9.2200E-04 -6.7000E-05 1.9800E-06
S16 -1.3651E-01 9.7445E-02 -4.9150E-02 1.7256E-02 -4.2200E-03 7.0000E-04 -7.5000E-05 4.5900E-06 -1.2000E-07
表35
f1(mm) 4.02 f7(mm) 5.12
f2(mm) -7.73 f8(mm) -2.34
f3(mm) 24.36 f(mm) 4.48
f4(mm) -119.64 TTL(mm) 5.51
f5(mm) 1007.29 ImgH(mm) 3.10
f6(mm) 7.69 FOV(°) 67.5
表36
图24A示出了实施例12的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图24B示出了实施例12的光学成像镜片组的象散曲线，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的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图24D示出了实施例12的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图24A至图24D，实施例12所给出的光学成像镜片组能够实现良好的成像品质。
实施例13
以下参照图25至图26D描述了根据本申请实施例13的光学成像镜片组。图25示出了根据本申请实施例13的光学成像镜片组的结构示意图。
如图25所示，根据本申请示例性实施方式的光学成像镜片组沿光轴由物侧至像侧依序包括：光阑STO、第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7、第八透镜E8、滤光片E9和成像面S19。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面；第二透镜E2具有负光焦度，其物侧面S3为凸面，像侧面S4为凹面；第三透镜E3具有正光焦度，其物侧面S5为凸面，像侧面S6为凹面；第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面；第五透镜E5具有负光焦度，其物侧面S9为凸面，像侧面S10为凹面；第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凸面；第七透镜E7具有负光焦度，其物侧面S13为凹面，像侧面S14为凸面；第八透镜E8具有负光焦度，其物侧面S15为凸面，像侧面S16为凹面。滤光片E9具有物侧面S17和像侧面S18。来自物体的光依序穿过各表面S1至S18并最终成像在成像面S19上。
表37示出了实施例13的光学成像镜片组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38示出了可用于实施例13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39给出实施例13中各透镜的有效焦距f1至f8、光学成像镜片组的总有效焦距f、第一透镜E1的物侧面S1至成像面S19在光轴上的距离TTL、成像面S19上有效像素区域对角线长的一半ImgH以及全视场角FOV。
Figure PCTCN2019078961-appb-000017
Figure PCTCN2019078961-appb-000018
表37
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.3850E-02 3.1549E-03 -1.1650E-02 1.0586E-02 -1.4000E-04 -7.8400E-03 6.2010E-03 -2.0600E-03 2.5300E-04
S2 -3.2765E-02 -5.1038E-02 2.2987E-01 -3.9577E-01 3.9571E-01 -2.4746E-01 9.5317E-02 -2.0730E-02 1.9490E-03
S3 -3.9672E-02 -1.8733E-01 6.9916E-01 -1.1732E+00 1.1861E+00 -7.5350E-01 2.9576E-01 -6.5880E-02 6.4080E-03
S4 4.0029E-02 -4.4779E-01 1.3348E+00 -2.3968E+00 2.8892E+00 -2.3603E+00 1.2688E+00 -4.0293E-01 5.6589E-02
S5 1.8845E-01 -5.2227E-01 1.0388E+00 -1.5579E+00 1.7481E+00 -1.4149E+00 7.8639E-01 -2.6256E-01 3.8628E-02
S6 4.6237E-02 -1.2483E-01 2.9672E-01 -6.0073E-01 9.1080E-01 -9.1094E-01 5.6738E-01 -1.9756E-01 2.9251E-02
S7 -6.1172E-02 5.9527E-03 -1.4385E-01 3.8249E-01 -5.8329E-01 5.6066E-01 -3.3478E-01 1.1359E-01 -1.6910E-02
S8 -1.0729E-01 7.4062E-02 -2.2387E-01 2.7362E-01 -1.5188E-01 1.6480E-02 2.3539E-02 -1.1460E-02 1.6110E-03
S9 -1.9645E-01 3.7355E-01 -6.5447E-01 6.8434E-01 -4.1290E-01 1.3215E-01 -1.6910E-02 -4.3000E-04 9.8100E-05
S10 -2.5411E-01 4.2316E-01 -6.3981E-01 6.6201E-01 -4.3099E-01 1.6483E-01 -3.3640E-02 2.9040E-03 -2.4000E-05
S11 -1.0492E-01 1.0431E-01 -1.7418E-01 1.8064E-01 -1.0724E-01 3.1940E-02 -3.3800E-03 -2.7000E-04 6.0400E-05
S12 1.8538E-02 -1.2428E-02 -2.1710E-02 4.1905E-02 -3.2250E-02 1.4343E-02 -3.9600E-03 6.3100E-04 -4.4000E-05
S13 8.8667E-03 -5.9871E-02 9.8520E-02 -9.8660E-02 6.4731E-02 -2.6860E-02 6.7180E-03 -9.3000E-04 5.5100E-05
S14 6.1401E-03 -4.9525E-02 5.6365E-02 -3.9600E-02 1.7056E-02 -4.4900E-03 7.0400E-04 -6.0000E-05 2.1600E-06
S15 -3.3903E-01 2.4929E-01 -1.2565E-01 4.2321E-02 -9.2000E-03 1.3010E-03 -1.2000E-04 6.4500E-06 -1.6000E-07
S16 -1.8529E-01 1.4889E-01 -8.3600E-02 3.2294E-02 -8.4900E-03 1.4870E-03 -1.6000E-04 1.0500E-05 -2.9000E-07
表38
f1(mm) 4.00 f7(mm) -999.94
f2(mm) -7.65 f8(mm) -3.73
f3(mm) 28.38 f(mm) 4.57
f4(mm) 171.96 TTL(mm) 5.60
f5(mm) -40.32 ImgH(mm) 3.10
f6(mm) 5.52 FOV(°) 66.5
表39
图26A示出了实施例13的光学成像镜片组的轴上色差曲线，其表示不同波长的光线经由镜片组后的会聚焦点偏离。图26B示出了实施例13的光学成像镜片组的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图26C示出了实施例13的光学成像镜片组的畸变曲线，其表示不同像高处的畸变大小值。图26D示出了实施例13的光学成像镜片组的倍率色差曲线，其表示光线经由镜片组后在成像面上的不同的像高的偏差。根据图26A至图26D，实施例13所给出的光学成像镜片组能够实现良好的成像品质。
综上，实施例1至实施例13分别满足表40中所示的关系。
条件式\实施例 1 2 3 4 5 6 7
f/EPD 1.45 1.46 1.47 1.48 1.49 1.50 1.51
f/f1 1.07 1.06 1.07 1.08 1.11 1.15 1.04
f2/f -1.75 -1.79 -1.73 -1.92 -1.62 -1.59 -1.97
f6/R11 1.53 1.84 1.88 1.57 1.33 1.36 1.32
f/f8 -1.84 -1.88 -1.88 -1.87 -1.87 -1.28 -1.81
TTL/ImgH 1.74 1.83 1.83 1.77 1.86 1.90 1.73
R6/R5 1.19 1.15 1.13 0.97 1.14 1.13 1.30
R9/R10 1.39 1.52 1.55 1.45 1.01 1.25 1.29
f/R1 2.18 2.17 2.17 2.16 2.24 2.31 2.30
CT4/T34 0.92 0.95 0.91 0.97 0.93 0.96 1.24
CT1/CT7 1.15 1.07 1.09 1.10 1.22 1.32 1.00
FOV(°) 70.1 67.9 67.7 69.6 66.2 63.8 68.7
DT21/DT41 1.14 1.13 1.11 1.11 1.13 1.14 1.17
条件式\实施例 8 9 10 11 12 13
f/EPD 1.54 1.55 1.56 1.57 1.58 1.59
f/f1 1.06 1.07 1.20 1.08 1.12 1.14
f2/f -1.94 -1.89 -1.54 -2.01 -1.73 -1.67
f6/R11 1.84 1.77 1.22 1.32 1.19 1.28
f/f8 -1.89 -1.93 -1.96 -1.96 -1.92 -1.22
TTL/ImgH 1.92 1.78 1.81 1.91 1.78 1.81
R6/R5 1.29 1.27 1.17 0.97 1.25 1.21
R9/R10 1.39 1.46 1.29 1.30 1.01 1.19
f/R1 2.29 2.27 2.19 2.26 2.33 2.30
CT4/T34 1.25 1.24 1.04 1.19 1.11 1.22
CT1/CT7 0.90 0.87 1.10 0.92 0.97 1.01
FOV(°) 64.1 68.2 67.5 64.7 67.5 66.5
DT21/DT41 1.15 1.13 1.12 1.11 1.13 1.10
表40
本申请还提供一种成像装置，其电子感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。成像装置可以是诸如数码相机的独立成像设备，也可以是集成在诸如手机等移动电子设备上的成像模块。该成像装置装配有以上描述的光学成像镜片组。
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 (45)

  1. 光学成像镜片组，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、第六透镜、第七透镜和第八透镜，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；
    所述第三透镜具有光焦度，其物侧面为凸面，像侧面为凹面；
    所述第四透镜具有光焦度；
    所述第五透镜具有光焦度，其物侧面为凸面；
    所述第六透镜具有正光焦度，其物侧面为凸面；
    所述第七透镜具有光焦度；
    所述第八透镜具有负光焦度；
    所述第二透镜的有效焦距f2与所述光学成像镜片组的总有效焦距f满足-2.5＜f2/f＜-1.5。
  2. 根据权利要求1所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的有效焦距f1满足1＜f/f1＜2。
  3. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第六透镜的有效焦距f6与所述第六透镜的物侧面的曲率半径R11满足1＜f6/R11＜2。
  4. 根据权利要求1所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第八透镜的有效焦距f8满足-2＜f/f8＜-1。
  5. 根据权利要求1所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的物侧面的曲率半径R1满足2＜f/R1＜2.5。
  6. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第三透镜的物侧面的曲率半径R5满足0.5＜R6/R5＜1.5。
  7. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第五透镜的像侧面的曲率半径R10满足1＜R9/R10＜2。
  8. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第四透镜于所述光轴上的中心厚度CT4与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0.8＜CT4/T34＜1.8。
  9. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第七透镜于所述光轴上的中心厚度CT7满足0.5＜CT1/CT7＜1.5。
  10. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面的最大有效半径DT21与所述第四透镜的物侧面的最大有效半径DT41满足1＜DT21/DT41＜1.5。
  11. 根据权利要求1所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  12. 根据权利要求11所述的光学成像镜片组，其特征在于，所述第七透镜的像侧面为凸面。
  13. 根据权利要求12所述的光学成像镜片组，其特征在于，所述第八透镜的像侧面为凹面。
  14. 根据权利要求1至13中任一项所述的光学成像镜片组，其特征在于，所述第一透镜的物侧面 至所述光学成像镜片组成像面的轴上距离TTL与所述光学成像镜片组成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.95。
  15. 根据权利要求1至13中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的全视场角FOV满足60°＜FOV＜75°。
  16. 根据权利要求1至13中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述光学成像镜片组的入瞳直径EPD满足f/EPD＜1.8。
  17. 光学成像镜片组，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、第六透镜、第七透镜和第八透镜，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；
    所述第三透镜具有光焦度，其物侧面为凸面，像侧面为凹面；
    所述第四透镜具有光焦度；
    所述第五透镜具有光焦度，其物侧面为凸面；
    所述第六透镜具有正光焦度，其物侧面为凸面；
    所述第七透镜具有光焦度；
    所述第八透镜具有负光焦度；
    所述光学成像镜片组的总有效焦距f与所述第八透镜的有效焦距f8满足-2＜f/f8＜-1。
  18. 根据权利要求17所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  19. 根据权利要求18所述的光学成像镜片组，其特征在于，所述第七透镜的像侧面为凸面。
  20. 根据权利要求19所述的光学成像镜片组，其特征在于，所述第八透镜的像侧面为凹面。
  21. 根据权利要求17所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述光学成像镜片组的入瞳直径EPD满足f/EPD＜1.8。
  22. 根据权利要求17所述的光学成像镜片组，其特征在于，所述第一透镜的物侧面至所述光学成像镜片组成像面的轴上距离TTL与所述光学成像镜片组成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.95。
  23. 根据权利要求17所述的光学成像镜片组，其特征在于，所述光学成像镜片组的全视场角FOV满足60°＜FOV＜75°。
  24. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的有效焦距f1满足1＜f/f1＜2。
  25. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第六透镜的有效焦距f6与所述第六透镜的物侧面的曲率半径R11满足1＜f6/R11＜2。
  26. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的物侧面的曲率半径R1满足2＜f/R1＜2.5。
  27. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第三透镜的像侧面 的曲率半径R6与所述第三透镜的物侧面的曲率半径R5满足0.5＜R6/R5＜1.5。
  28. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第五透镜的像侧面的曲率半径R10满足1＜R9/R10＜2。
  29. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第四透镜于所述光轴上的中心厚度CT4与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0.8＜CT4/T34＜1.8。
  30. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第七透镜于所述光轴上的中心厚度CT7满足0.5＜CT1/CT7＜1.5。
  31. 根据权利要求17至23中任一项所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面的最大有效半径DT21与所述第四透镜的物侧面的最大有效半径DT41满足1＜DT21/DT41＜1.5。
  32. 光学成像镜片组，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、第六透镜、第七透镜和第八透镜，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；
    所述第三透镜具有光焦度，其物侧面为凸面，像侧面为凹面；
    所述第四透镜具有光焦度；
    所述第五透镜具有光焦度，其物侧面为凸面；
    所述第六透镜具有正光焦度，其物侧面为凸面；
    所述第七透镜具有光焦度；
    所述第八透镜具有负光焦度；
    所述第四透镜于所述光轴上的中心厚度CT4与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0.8＜CT4/T34＜1.8。
  33. 根据权利要求32所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的有效焦距f1满足1＜f/f1＜2。
  34. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第六透镜的有效焦距f6与所述第六透镜的物侧面的曲率半径R11满足1＜f6/R11＜2。
  35. 根据权利要求32所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述第一透镜的物侧面的曲率半径R1满足2＜f/R1＜2.5。
  36. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第三透镜的物侧面的曲率半径R5满足0.5＜R6/R5＜1.5。
  37. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第五透镜的像侧面的曲率半径R10满足1＜R9/R10＜2。
  38. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第一透镜于所述光轴上的中心厚度CT1与所述第七透镜于所述光轴上的中心厚度CT7满足0.5＜CT1/CT7＜1.5。
  39. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面的最大有效半 径DT21与所述第四透镜的物侧面的最大有效半径DT41满足1＜DT21/DT41＜1.5。
  40. 根据权利要求32所述的光学成像镜片组，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  41. 根据权利要求40所述的光学成像镜片组，其特征在于，所述第七透镜的像侧面为凸面。
  42. 根据权利要求41所述的光学成像镜片组，其特征在于，所述第八透镜的像侧面为凹面。
  43. 根据权利要求32至42中任一项所述的光学成像镜片组，其特征在于，所述第一透镜的物侧面至所述光学成像镜片组成像面的轴上距离TTL与所述光学成像镜片组成像面上有效像素区域对角线长的一半ImgH满足TTL/ImgH＜1.95。
  44. 根据权利要求32至42中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的全视场角FOV满足60°＜FOV＜75°。
  45. 根据权利要求32至42中任一项所述的光学成像镜片组，其特征在于，所述光学成像镜片组的总有效焦距f与所述光学成像镜片组的入瞳直径EPD满足f/EPD＜1.8。
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