WO2019100868A1 - Lentille d'imagerie optique - Google Patents

Lentille d'imagerie optique Download PDF

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Publication number
WO2019100868A1
WO2019100868A1 PCT/CN2018/110435 CN2018110435W WO2019100868A1 WO 2019100868 A1 WO2019100868 A1 WO 2019100868A1 CN 2018110435 W CN2018110435 W CN 2018110435W WO 2019100868 A1 WO2019100868 A1 WO 2019100868A1
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WIPO (PCT)
Prior art keywords
lens
optical imaging
imaging lens
image side
object side
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PCT/CN2018/110435
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English (en)
Chinese (zh)
Inventor
周鑫
杨健
闻人建科
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浙江舜宇光学有限公司
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Publication of WO2019100868A1 publication Critical patent/WO2019100868A1/fr

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

Definitions

  • the present application relates to an optical imaging lens, and more particularly to an optical imaging lens including eight lenses.
  • the photosensitive element of a conventional image forming apparatus is generally a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).
  • CCD Charge-Coupled Device
  • CMOS Complementary Metal-Oxide Semiconductor
  • the present application provides an optical imaging lens having eight lenses.
  • the optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the image side surface of the second lens is a concave surface; the image side surface of the fifth lens is a convex surface; the object side surface of the sixth lens is a concave surface and the image side surface is a convex surface; the object side surface of the seventh lens is a convex surface and the image side surface is a convex surface The concave surface; and the power of the eighth lens is a negative power.
  • the object side of the first lens is convex and the image side is concave.
  • the object side of the second lens is convex.
  • the image side of the third lens is concave.
  • the object side of the eighth lens is convex and the image side is concave.
  • the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens satisfy the following relationship: -3.0 ⁇ SAG82/CT8 ⁇ -1.0.
  • the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following relationship: 0.5 ⁇ CT3 / CT4 ⁇ 1.0.
  • the axial distance TTL from the center of the object side of the first lens to the imaging surface of the optical imaging lens and the semi-diagonal length ImgH of the effective pixel area on the imaging surface satisfy the following relationship: TTL / ImgH ⁇ 1.6.
  • the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens satisfy the following relationship: 9.0 ⁇
  • the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy the following relationship: f/EPD ⁇ 2.0.
  • the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy the following relationship: 2.0 ⁇ f / R1 ⁇ 2.5.
  • the radius of curvature R15 of the object side surface of the eighth lens and the curvature radius R16 of the image side surface of the eighth lens satisfy the following relationship: 1.0 ⁇ (R15 + R16) / (R15 - R16) ⁇ 2.0.
  • the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens satisfy the following relationship: -3.0 ⁇ f8 / R16 ⁇ -2.0.
  • the effective focal length f of the optical imaging lens is equal to the effective focal length f1 of the first lens and the effective focal length f2 of the second lens: 0.5 ⁇
  • the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens satisfy the following relationship: 1.0 ⁇
  • the air space T45 on the optical axis of the fourth lens and the fifth lens and the air space T67 on the optical axis of the sixth lens and the seventh lens satisfy the following relationship: 0.5 ⁇ T45 / T67 ⁇ 1.5.
  • the effective focal length f of the optical imaging lens and the radius of curvature R16 of the image side of the eighth lens satisfy the following relationship: 2.0 ⁇ f / R16 ⁇ 3.0.
  • the center thickness CT4 of the fourth lens and the air interval T45 of the fourth lens and the fifth lens on the optical axis satisfy the following relationship: 2.5 ⁇ CT4/T45 ⁇ 5.5.
  • the optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The side of the object is convex and the side of the image is concave; the power of the eighth lens is negative.
  • the optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The object side is convex and the image side is concave; the eighth lens has a power of negative power, and the image height of the image side of the eighth lens at the maximum effective aperture SAG82 satisfies the following relationship with the center thickness CT8 of the eighth lens :-3.0 ⁇ SAG82/CT8 ⁇ -1.0.
  • the optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The object side is convex and the image side is concave; the eighth lens has a power of negative power, and the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following relationship: 0.5 ⁇ CT3/CT4 ⁇ 1.0.
  • the optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The side of the object is convex and the side of the image is concave; the power of the eighth lens is negative, and the distance from the center of the object side of the first lens to the imaging surface of the optical imaging lens is TTL and effective on the imaging surface
  • the half-diagonal length ImgH of the pixel region satisfies the following relationship: TTL/ImgH ⁇ 1.6.
  • the present application employs an eight-piece lens, which makes the optical imaging lens ultra-thin, miniaturized, large-aperture, and high by rationally distributing the surface shape of each lens, the center thickness of each lens, and the on-axis spacing between the lenses. At least one beneficial effect such as imaging quality.
  • FIG. 1 is a schematic structural view of an optical imaging lens according to Embodiment 1 of the present application.
  • 2A to 2D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;
  • FIG. 3 is a schematic structural view of an optical imaging lens according to Embodiment 2 of the present application.
  • 4A to 4D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2.
  • FIG. 5 is a schematic structural view of an optical imaging lens according to Embodiment 3 of the present application.
  • 6A to 6D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3.
  • FIG. 7 is a schematic structural view of an optical imaging lens according to Embodiment 4 of the present application.
  • 8A to 8D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 4;
  • FIG. 9 is a schematic structural view of an optical imaging lens according to Embodiment 5 of the present application.
  • 10A to 10D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 5;
  • FIG. 11 is a schematic structural view of an optical imaging lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 6;
  • FIG. 13 is a schematic structural view of an optical imaging lens according to Embodiment 7 of the present application.
  • 14A to 14D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;
  • FIG. 15 is a schematic structural view of an optical imaging lens according to Embodiment 8 of the present application.
  • 16A to 16D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8;
  • FIG. 17 is a schematic structural view of an optical imaging lens according to Embodiment 9 of the present application.
  • 18A to 18D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 9;
  • FIG. 19 is a schematic structural view of an optical imaging lens according to Embodiment 10 of the present application.
  • 20A to 20D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 10.
  • FIG. 21 is a schematic structural view of an optical imaging lens according to Embodiment 11 of the present application.
  • 22A to 22D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 11;
  • FIG. 23 is a schematic structural view of an optical imaging lens according to Embodiment 12 of the present application.
  • 24A to 24D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 12.
  • FIG. 25 is a schematic structural view of an optical imaging lens according to Embodiment 13 of the present application.
  • 26A to 26D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 13;
  • FIG. 27 is a block diagram showing the structure of an optical imaging lens according to Embodiment 14 of the present application.
  • 28A to 28D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 14.
  • first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature.
  • first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
  • the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation.
  • the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings.
  • the drawings are only examples and are not to scale.
  • a paraxial region refers to a region near the optical axis. If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at least in the paraxial region; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is at least in the paraxial region. Concave.
  • the surface closest to the object in each lens is referred to as the object side, and the surface of each lens closest to the image plane is referred to as the image side.
  • the optical imaging lens may include, for example, eight lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a Seven lenses and eighth lens.
  • the eight lenses are sequentially arranged from the object side to the image side along the optical axis.
  • the image side surface of the second lens is a concave surface; the image side surface of the fifth lens is a convex surface; the object side surface of the sixth lens is a concave surface and the image side surface is a convex surface; and the object side surface of the seventh lens is a convex surface and a side surface It is a concave surface; and the power of the eighth lens is a negative power.
  • each lens may be further defined as follows: the object side of the first lens is convex and the image side is concave; the object side of the second lens is convex; the image side of the third lens is concave; / or the object side of the eighth lens is convex and the image side is concave.
  • the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens may satisfy the following relationship: -3.0 ⁇ SAG82/CT8 ⁇ -1.0, more specifically, -2.44 ⁇ SAG82/CT8 ⁇ -1.66.
  • the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens may satisfy the following relationship: 0.5 ⁇ CT3/CT4 ⁇ 1.0, more specifically, 0.68 ⁇ CT3/CT4 ⁇ 1.0.
  • the on-axis distance TTL of the object side center of the first lens to the imaging surface of the optical imaging lens and the semi-diagonal length ImgH of the effective pixel area on the imaging surface may satisfy the following relationship: TTL/ImgH ⁇ 1.6.
  • the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens may satisfy the following relationship: 9.0 ⁇
  • the ratio of the effective focal length of the eighth lens to the center thickness of the eighth lens the size of the rear end of the optical imaging lens can be effectively compressed, thereby facilitating miniaturization.
  • the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy the following relationship: f/EPD ⁇ 2.0, more specifically f/EPD ⁇ 1.97.
  • the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens may satisfy the following relationship: 2.0 ⁇ f / R1 ⁇ 2.5, more specifically, 2.14 ⁇ f / R1 ⁇ 2.26.
  • the radius of curvature R15 of the object side surface of the eighth lens and the curvature radius R16 of the image side surface of the eighth lens may satisfy the following relationship: 1.0 ⁇ (R15+R16)/(R15-R16) ⁇ 2.0, more specific Ground, 1.41 ⁇ (R15 + R16) / (R15-R16) ⁇ 1.46.
  • the optical imaging lens can better match the chief ray angle of the photosensitive chip located at the rear end of the optical imaging lens.
  • the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens may satisfy the following relationship: -3.0 ⁇ f8 / R16 ⁇ -2.0, more specifically, -2.33 ⁇ f8 / R16 ⁇ -2.27.
  • the optical imaging lens can have a better balance of astigmatism.
  • the effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy the following relationship: 0.5 ⁇
  • the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens may satisfy the following relationship: 1.0 ⁇
  • the optical imaging lens can have a better ability to balance field curvature.
  • the air spacing T45 of the fourth lens and the fifth lens on the optical axis and the air spacing T67 of the sixth lens and the seventh lens on the optical axis may satisfy the following relationship: 0.5 ⁇ T45/T67 ⁇ 1.5, More specifically, 0.79 ⁇ T45 / T67 ⁇ 1.35.
  • the effective focal length f of the optical imaging lens and the radius of curvature R16 of the image side of the eighth lens may satisfy the following relationship: 2.0 ⁇ f / R16 ⁇ 3.0, more specifically, 2.45 ⁇ f / R16 ⁇ 2.72.
  • the center thickness CT4 of the fourth lens and the air spacing T45 of the fourth lens and the fifth lens on the optical axis may satisfy the following relationship: 2.5 ⁇ CT4/T45 ⁇ 5.5, more specifically, 2.96 ⁇ CT4/ T45 ⁇ 5.22.
  • the optical imaging lens can have a better ability to balance field curvature and dispersion.
  • the optical imaging lens may further include at least one aperture to enhance the imaging quality of the lens.
  • the diaphragm can be disposed at the first lens.
  • the above optical imaging lens may further include a filter for correcting the color deviation and/or a cover glass for protecting the photosensitive element on the imaging surface.
  • the optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, such as the eight sheets described above.
  • a plurality of lenses such as the eight sheets described above.
  • the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved.
  • the optical imaging lens is made more advantageous for production processing and can be applied to portable electronic products.
  • the optical imaging lens of the above configuration has advantages such as ultra-thinness, miniaturization, large aperture, and high image quality.
  • At least one of the mirror faces of each lens is an aspherical mirror.
  • the aspherical lens is characterized by a continuous change in curvature from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving distortion and improving astigmatic aberration. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality.
  • optical imaging lens is not limited to including eight lenses.
  • the optical imaging lens can also include other numbers of lenses if desired.
  • FIG. 1 is a block diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 1, in which the unit of curvature radius and thickness are all millimeters (mm).
  • each aspherical lens can be defined by using, but not limited to, the following aspherical formula:
  • x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the a-th order of the aspherical surface.
  • Table 2 gives the higher order coefficient A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 which can be used for each aspherical mirror surface S1-S16 in the embodiment 1. .
  • Table 3 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 1, the total effective focal length f of the optical imaging lens, and the optical total length TTL of the optical imaging lens (i.e., from the center of the object side S1 of the first lens E1 to imaging) The distance of the face S19 on the optical axis) and the half-diagonal length ImgH of the effective pixel area on the imaging surface S19 of the optical imaging lens.
  • the optical imaging lens has the following parameter configuration.
  • TTL/ImgH 1.59;
  • FIG. 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • 2B shows an astigmatism curve of the optical imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature.
  • 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which shows distortion magnitude values in the case of different viewing angles.
  • 2D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates a deviation of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 2, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 5 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 6 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 2, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens.
  • 4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • 4B shows an astigmatism curve of the optical imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature.
  • 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which shows distortion magnitude values in the case of different viewing angles.
  • 4D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a block diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 8 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 9 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 3, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 6B shows an astigmatism curve of the optical imaging lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 6A to 6D, the optical imaging lens given in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a block diagram showing the structure of an optical imaging lens according to Embodiment 4 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 10 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 11 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 12 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 4, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 8A to 8D, the optical imaging lens given in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a block diagram showing the structure of an optical imaging lens according to Embodiment 5 of the present application.
  • an optical imaging lens includes, in order from an object side to an image side along an optical axis, a stop STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 5, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 14 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 5, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 15 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 5, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 10B shows an astigmatism curve of the optical imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a view showing the configuration of an optical imaging lens according to Embodiment 6 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens E3 has a positive refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 16 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 6, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 17 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 6, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 18 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 6, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 12A shows an axial chromatic aberration curve of the optical imaging lens of Example 6, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 12B shows an astigmatism curve of the optical imaging lens of Example 6, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 12C shows a distortion curve of the optical imaging lens of Embodiment 6, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 6, which shows the deviation of different image heights on the imaging plane after the light passes through the lens. 12A to 12D, the optical imaging lens given in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a view showing the configuration of an optical imaging lens according to Embodiment 7 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 13 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 7, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 20 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 7, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 21 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 7, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the half diagonal of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 14A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 14B shows an astigmatism curve of the optical imaging lens of Embodiment 7, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 14A to 14D, the optical imaging lens given in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface.
  • the fifth lens E5 has a negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 15 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 8, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 23 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 8, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 24 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 8, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 16A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 8, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 16B shows an astigmatism curve of the optical imaging lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 16A to 16D, the optical imaging lens given in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 is a view showing the configuration of an optical imaging lens according to Embodiment 9 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 25 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 9, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 26 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 9, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 27 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 9, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 18A shows an axial chromatic aberration curve of the optical imaging lens of Example 9, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 18B shows an astigmatism curve of the optical imaging lens of Example 9, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 18C shows a distortion curve of the optical imaging lens of Embodiment 9, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of Example 9, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 9 can achieve good imaging quality.
  • FIG. 19 is a view showing the configuration of an optical imaging lens according to Embodiment 10 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 28 shows the surface type, the curvature radius, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 10, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 29 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 10, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 30 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 10, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 20A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 20B shows an astigmatism curve of the optical imaging lens of Embodiment 10, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 20C shows a distortion curve of the optical imaging lens of Embodiment 10, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 10 can achieve good imaging quality.
  • FIG. 21 is a view showing the configuration of an optical imaging lens according to Embodiment 11 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 31 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 11, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 32 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 11, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 33 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 11, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 22A shows an axial chromatic aberration curve of the optical imaging lens of Example 11, which shows that the light of different wavelengths is deviated from the focus point after passing through the lens.
  • Fig. 22B shows an astigmatism curve of the optical imaging lens of Example 11, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 22C shows a distortion curve of the optical imaging lens of Embodiment 11, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 22D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 11, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 22A to 22D, the optical imaging lens given in Embodiment 11 can achieve good imaging quality.
  • FIG. 23 is a view showing the configuration of an optical imaging lens according to Embodiment 12 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 34 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 12, in which the unit of the radius of curvature and the thickness are each mm (mm).
  • Table 35 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 12, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 36 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 12, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 24A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 12, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 24B shows an astigmatism curve of the optical imaging lens of Example 12, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 24C shows a distortion curve of the optical imaging lens of Embodiment 12, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 24D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 12, which shows deviations of different image heights on the imaging plane after the light passes through the lens. According to FIGS. 24A to 24D, the optical imaging lens given in Embodiment 12 can achieve good imaging quality.
  • FIG. 25 is a view showing the configuration of an optical imaging lens according to Embodiment 13 of the present application.
  • an optical imaging lens sequentially includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, and an image along the optical axis from the object side to the image side.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 37 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 13, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 38 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 13, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 39 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 13, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 26A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 13, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 26B shows an astigmatism curve of the optical imaging lens of Example 13, which shows the meridional field curvature and the sagittal image plane curvature.
  • Fig. 26C shows a distortion curve of the optical imaging lens of Embodiment 13, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 26D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 13, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 26A to 26D, the optical imaging lens given in Embodiment 13 can achieve good imaging quality.
  • FIG. 27 is a view showing the configuration of an optical imaging lens according to Embodiment 14 of the present application.
  • an optical imaging lens includes, in order from the object side to the image side along the optical axis, a pupil STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.
  • the first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive refractive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a negative refractive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the eighth lens E8 has a negative refractive power
  • the object side surface S15 is a convex surface
  • the image side surface S16 is a concave surface.
  • the filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.
  • Table 40 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 14, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 41 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 14, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 42 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 14, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.
  • Fig. 28A shows an axial chromatic aberration curve of the optical imaging lens of Example 14, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 28B shows an astigmatism curve of the optical imaging lens of Example 14, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 28C shows a distortion curve of the optical imaging lens of Embodiment 14, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 28D shows a magnification chromatic aberration curve of the optical imaging lens of Example 14, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 28A to 28D, the optical imaging lens given in Embodiment 14 can achieve good imaging quality.
  • Embodiments 1 to 14 satisfy the relationships shown in Tables 43 and 44, respectively.
  • the present application also provides an image forming apparatus whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be a stand-alone imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging lens described above.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne une lentille d'imagerie optique, comprenant une première lentille (E1), une deuxième lentille (E2), une troisième lentille (E3), une quatrième lentille (E4), une cinquième lentille (E5), une sixième lentille (E6), une septième lentille (E7) et une huitième lentille (E8) ayant des puissances optiques et agencées en séquence d'un côté objet à un côté image le long d'un axe optique, la surface côté image de la deuxième lentille étant concave; la surface côté image de la cinquième lentille étant convexe; la surface côté objet de la sixième lentille étant concave et la surface côté image de la sixième lentille étant convexe; la surface côté objet de la septième lentille étant convexe et la surface côté image de celle-ci étant concave; la huitième lentille ayant une puissance optique négative. La lentille d'imagerie optique ainsi obtenue présente au moins un effet bénéfique d'ultra-minceur, de petite taille, de grande ouverture, de haute qualité d'imagerie, etc..
PCT/CN2018/110435 2017-11-22 2018-10-16 Lentille d'imagerie optique WO2019100868A1 (fr)

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CN110244441A (zh) * 2019-06-13 2019-09-17 山东省科学院海洋仪器仪表研究所 一种海洋浮游生物显微光学成像镜头
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CN112415713A (zh) * 2020-11-22 2021-02-26 福建福光天瞳光学有限公司 一种长焦距高均匀度视觉检测系统及其制造方法
CN112415713B (zh) * 2020-11-22 2024-01-12 福建福光天瞳光学有限公司 一种长焦距高均匀度视觉检测系统及其制造方法
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CN114740594A (zh) * 2022-03-08 2022-07-12 江西晶超光学有限公司 光学系统、摄像模组及电子设备

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