WO2021128120A1 - Photographic optical lens - Google Patents

Photographic optical lens Download PDF

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Publication number
WO2021128120A1
WO2021128120A1 PCT/CN2019/128561 CN2019128561W WO2021128120A1 WO 2021128120 A1 WO2021128120 A1 WO 2021128120A1 CN 2019128561 W CN2019128561 W CN 2019128561W WO 2021128120 A1 WO2021128120 A1 WO 2021128120A1
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Prior art keywords
lens
imaging optical
optical lens
ttl
curvature
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PCT/CN2019/128561
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French (fr)
Chinese (zh)
Inventor
寺西孝亮
张磊
崔元善
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诚瑞光学(常州)股份有限公司
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Priority to PCT/CN2019/128561 priority Critical patent/WO2021128120A1/en
Publication of WO2021128120A1 publication Critical patent/WO2021128120A1/en

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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

Definitions

  • This application relates to the field of optical lenses, and in particular to a camera optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as camera devices such as monitors and PC lenses.
  • the photosensitive devices of general photographic lenses are nothing more than photosensitive coupled devices (CCD) or complementary metal oxide semiconductor devices (Complementary Metal).
  • CCD photosensitive coupled devices
  • CMOS Sensor complementary metal oxide semiconductor devices
  • the pixel size of photosensitive devices has been reduced, and the development trend of current electronic products with good functions, light, thin and short appearance, therefore, has The miniaturized camera lens with good image quality has become the mainstream in the current market.
  • the lenses traditionally mounted on mobile phone cameras mostly adopt a three-element or four-element lens structure.
  • the purpose of the present application is to provide an imaging optical lens that can meet the requirements of ultra-thinness and wide-angle while obtaining high imaging performance.
  • the imaging optical lens includes in order from the object side to the image side: a first lens with negative refractive power, and a first lens with positive refractive power. Two lenses, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens, a sixth lens, and a seventh lens;
  • the maximum angle of view of the imaging optical lens is FOV
  • the radius of curvature of the object side of the seventh lens is R13
  • the radius of curvature of the image side of the seventh lens is R14
  • the image side of the first lens to the second lens The on-axis distance of the object side is d2
  • the on-axis distance from the image side of the second lens to the object side of the third lens is d4, which satisfies the following relationship: 100.00° ⁇ FOV ⁇ 135.00°; -10.00 ⁇ R13/R14 ⁇ 1.00 ; 1.50 ⁇ d2/d4 ⁇ 4.00.
  • the object side surface of the first lens is concave on the paraxial axis, and the image side surface is concave on the paraxial axis;
  • the focal length of the imaging optical lens is f
  • the focal length of the first lens is f1
  • the first lens The radius of curvature of the object side surface is R1
  • the radius of curvature of the image side surface of the first lens is R2
  • the axial thickness of the first lens is d1
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied : -3.62 ⁇ f1/f ⁇ -1.04; 0.11 ⁇ (R1+R2)/(R1-R2) ⁇ 1.00; 0.04 ⁇ d1/TTL ⁇ 0.14.
  • the imaging optical lens satisfies the following relationship: -2.26 ⁇ f1/f ⁇ -1.30; 0.18 ⁇ (R1+R2)/(R1-R2) ⁇ 0.80; 0.06 ⁇ d1/TTL ⁇ 0.11.
  • the object side of the second lens is convex on the paraxial axis, and the image side is concave on the paraxial;
  • the focal length of the imaging optical lens is f
  • the focal length of the second lens is f2
  • the second lens The curvature radius of the object side is R3, the curvature radius of the image side of the second lens is R4, the on-axis thickness of the second lens is d3, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: 3.62 ⁇ f2/f ⁇ 1045.28; -46.06 ⁇ (R3+R4)/(R3-R4) ⁇ 936.38; 0.02 ⁇ d3/TTL ⁇ 0.09.
  • the imaging optical lens satisfies the following relationship: 5.79 ⁇ f2/f ⁇ 836.22; -28.79 ⁇ (R3+R4)/(R3-R4) ⁇ 749.10; 0.03 ⁇ d3/TTL ⁇ 0.07.
  • the object side surface of the third lens is convex on the paraxial axis, and the image side surface is convex on the paraxial axis;
  • the focal length of the imaging optical lens is f
  • the focal length of the third lens is f3
  • the third lens The curvature radius of the object side surface is R5, the curvature radius of the image side surface of the third lens is R6, the axial thickness of the third lens is d5, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: 0.35 ⁇ f3/f ⁇ 1.28; 0.12 ⁇ (R5+R6)/(R5-R6) ⁇ 0.78; 0.04 ⁇ d5/TTL ⁇ 0.21.
  • the imaging optical lens satisfies the following relationship: 0.56 ⁇ f3/f ⁇ 1.02; 0.20 ⁇ (R5+R6)/(R5-R6) ⁇ 0.62; 0.06 ⁇ d5/TTL ⁇ 0.17.
  • the focal length of the imaging optical lens is f
  • the focal length of the fourth lens is f4
  • the radius of curvature of the object side of the fourth lens is R7
  • the radius of curvature of the image side of the fourth lens is R8, so
  • the axial thickness of the fourth lens is d7
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: -9.94 ⁇ f4/f ⁇ -0.70; -7.00 ⁇ (R7+R8)/(R7- R8) ⁇ 4.94; 0.02 ⁇ d7/TTL ⁇ 0.15.
  • the imaging optical lens satisfies the following relationship: -6.21 ⁇ f4/f ⁇ -0.88; -4.37 ⁇ (R7+R8)/(R7-R8) ⁇ 3.95; 0.02 ⁇ d7/TTL ⁇ 0.12.
  • the focal length of the imaging optical lens is f
  • the focal length of the fifth lens is f5
  • the radius of curvature of the object side of the fifth lens is R9
  • the radius of curvature of the image side of the fifth lens is R10
  • the on-axis thickness of the fifth lens is d9
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -6.06 ⁇ f5/f ⁇ 7.47; -1.94 ⁇ (R9+R10)/(R9-R10 ) ⁇ 1.71; 0.02 ⁇ d9/TTL ⁇ 0.15.
  • the imaging optical lens satisfies the following relationship: -3.79 ⁇ f5/f ⁇ 5.97; -1.21 ⁇ (R9+R10)/(R9-R10) ⁇ 1.37; 0.04 ⁇ d9/TTL ⁇ 0.12.
  • the focal length of the imaging optical lens is f
  • the focal length of the sixth lens is f6
  • the radius of curvature of the object side of the sixth lens is R11
  • the radius of curvature of the image side of the sixth lens is R12
  • the on-axis thickness of the sixth lens is d11
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -26.24 ⁇ f6/f ⁇ 1.53; -8.12 ⁇ (R11+R12)/(R11-R12 ) ⁇ 1.53; 0.02 ⁇ d11/TTL ⁇ 0.18.
  • the imaging optical lens satisfies the following relationship: -16.40 ⁇ f6/f ⁇ 1.22; -5.07 ⁇ (R11+R12)/(R11-R12) ⁇ 1.22; 0.03 ⁇ d11/TTL ⁇ 0.14.
  • the image side surface of the seventh lens is concave on the paraxial axis
  • the focal length of the imaging optical lens is f
  • the focal length of the seventh lens is f7
  • the on-axis thickness of the seventh lens is d13
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: -2.03 ⁇ f7/f ⁇ 8.69; -1391.79 ⁇ (R13+R14)/(R13-R14) ⁇ 1.23; 0.05 ⁇ d13/TTL ⁇ 0.25.
  • the imaging optical lens satisfies the following relationship: -1.27 ⁇ f7/f ⁇ 6.95; -869.87 ⁇ (R13+R14)/(R13-R14) ⁇ 0.98; 0.08 ⁇ d13/TTL ⁇ 0.20.
  • the focal length of the imaging optical lens is f
  • the combined focal length of the first lens and the second lens is f12
  • the following relationship is satisfied: -4.01 ⁇ f12/f ⁇ -1.11.
  • the total optical length TTL of the imaging optical lens is less than or equal to 8.34 mm.
  • the total optical length TTL of the imaging optical lens is less than or equal to 7.96 mm.
  • the aperture F number of the imaging optical lens is less than or equal to 2.88.
  • the aperture F number of the imaging optical lens is less than or equal to 2.83.
  • the imaging optical lens according to the present application has excellent optical characteristics, is ultra-thin, wide-angle and fully compensated for chromatic aberration, and is especially suitable for mobile phone camera lenses composed of high-pixel CCD, CMOS and other imaging elements Components and WEB camera lens.
  • FIG. 1 is a schematic diagram of the structure of an imaging optical lens according to a first embodiment of the present application
  • FIG. 2 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 1;
  • FIG. 3 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 1;
  • FIG. 4 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 1;
  • FIG. 5 is a schematic diagram of the structure of an imaging optical lens according to a second embodiment of the present application.
  • FIG. 6 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 5;
  • FIG. 7 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 5;
  • FIG. 8 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 5;
  • FIG. 9 is a schematic diagram of the structure of an imaging optical lens according to a third embodiment of the present application.
  • FIG. 10 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 9;
  • FIG. 11 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 9;
  • FIG. 12 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 9;
  • FIG. 13 is a schematic structural diagram of an imaging optical lens according to a fourth embodiment of the present application.
  • FIG. 14 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 13;
  • FIG. 15 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 13;
  • FIG. 16 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 13;
  • FIG. 17 is a schematic structural diagram of an imaging optical lens according to a fifth embodiment of the present application.
  • FIG. 18 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 17;
  • FIG. 19 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 17;
  • FIG. 20 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 17.
  • FIG. 1 shows an imaging optical lens 10 according to the first embodiment of the application.
  • the imaging optical lens 10 includes seven lenses. Specifically, the imaging optical lens 10 includes in order from the object side to the image side: a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, an aperture S1, and a third lens with a positive refractive power.
  • An optical element such as an optical filter GF may be provided on the image side of the seventh lens L7.
  • the maximum field of view of the camera optical lens 10 as FOV, 100.00 ⁇ FOV ⁇ 135.00, define the field of view of the camera optical lens 10, within the range, can achieve ultra-wide-angle photography and improve user experience. Preferably, it satisfies 100.00° ⁇ FOV ⁇ 135.00°.
  • the imaging optical lens 10 When the maximum field of view of the imaging optical lens 10, the on-axis thickness and the radius of curvature of each lens meet the above-mentioned relational expressions, the imaging optical lens 10 can be made to have high performance and meet the design requirements of low TTL.
  • the object side surface of the first lens L1 is concave on the paraxial axis
  • the image side surface of the first lens L1 is concave on the paraxial axis
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length f1 of the first lens L1 satisfies the following relationship: -3.62 ⁇ f1/f ⁇ -1.04, which specifies the ratio of the focal length of the first lens L1 to the overall focal length.
  • the first lens has an appropriate positive refractive power, which is beneficial to reduce system aberrations, and at the same time, is beneficial to the development of ultra-thin and wide-angle lenses.
  • it satisfies -2.26 ⁇ f1/f ⁇ -1.30.
  • the curvature radius R1 of the object side surface of the first lens L1 and the curvature radius R2 of the image side surface of the first lens L1 satisfy the following relationship: 0.11 ⁇ (R1+R2)/(R1-R2) ⁇ 1.00, reasonably control the shape of the first lens , So that the first lens can effectively correct the spherical aberration of the system; preferably, 0.18 ⁇ (R1+R2)/(R1-R2) ⁇ 0.80 is satisfied.
  • the axial thickness of the first lens L1 is d1
  • the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.04 ⁇ d1/TTL ⁇ 0.14, which is beneficial to realize ultra-thinness.
  • it satisfies 0.06 ⁇ d1/TTL ⁇ 0.11.
  • the object side surface of the second lens L2 is convex on the paraxial axis, and the image side surface of the second lens L2 is concave on the paraxial axis.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the second lens L2 is f2, which satisfies the following relationship: 3.62 ⁇ f2/f ⁇ 1045.28.
  • the curvature radius R3 of the object side surface of the second lens L2 and the curvature radius R4 of the image side surface of the second lens L2 satisfy the following relationship: -46.06 ⁇ (R3+R4)/(R3-R4) ⁇ 936.38, which specifies the second lens L2
  • -46.06 ⁇ (R3+R4)/(R3-R4) ⁇ 936.38 which specifies the second lens L2
  • it satisfies -28.79 ⁇ (R3+R4)/(R3-R4) ⁇ 749.10.
  • the on-axis thickness of the second lens L2 is d3, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02 ⁇ d3/TTL ⁇ 0.09, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.03 ⁇ d3/TTL ⁇ 0.07.
  • the object side surface of the third lens L3 is convex on the paraxial axis, and the image side surface thereof is convex on the paraxial axis.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the third lens L3 is f3
  • the following relationship is satisfied: 0.35 ⁇ f3/f ⁇ 1.28.
  • the system has better imaging quality and lower Sensitivity.
  • it satisfies 0.56 ⁇ f3/f ⁇ 1.02.
  • the curvature radius R5 of the object side of the third lens L3 and the curvature radius R6 of the image side of the third lens L3 satisfy the following relationship: 0.12 ⁇ (R5+R6)/(R5-R6) ⁇ 0.78, which can effectively control the third lens L3
  • the shape of, is conducive to the molding of the third lens L3.
  • the degree of deflection of light passing through the lens can be eased, and aberrations can be effectively reduced.
  • it satisfies 0.20 ⁇ (R5+R6)/(R5-R6) ⁇ 0.62.
  • the axial thickness of the third lens L3 is d5, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.04 ⁇ d5/TTL ⁇ 0.21, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.06 ⁇ d5/TTL ⁇ 0.17.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the fourth lens L4 is f4 which satisfies the following relationship: -9.94 ⁇ f4/f ⁇ -0.70.
  • the system has better imaging quality and comparison.
  • Low sensitivity Preferably, it satisfies -6.21 ⁇ f4/f ⁇ -0.88.
  • the curvature radius R7 of the object side surface of the fourth lens L4 and the curvature radius R8 of the image side surface of the fourth lens L4 satisfy the following relationship: -7.00 ⁇ (R7+R8)/(R7-R8) ⁇ 4.94, the fourth lens is specified
  • the shape of L4 is within the range, with the development of ultra-thin and wide-angle, it is easy to correct problems such as the aberration of the off-axis angle of view.
  • it satisfies -4.37 ⁇ (R7+R8)/(R7-R8) ⁇ 3.95.
  • the axial thickness of the fourth lens L4 is d7, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02 ⁇ d7/TTL ⁇ 0.15, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.02 ⁇ d7/TTL ⁇ 0.12.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the fifth lens L5 is f5, which satisfies the following relationship: -6.06 ⁇ f5/f ⁇ 7.47.
  • the limitation on the fifth lens L5 can effectively make the light angle of the imaging lens smooth and reduce Tolerance sensitivity. Preferably, it satisfies -3.79 ⁇ f5/f ⁇ 5.97.
  • the curvature radius R9 of the object side surface of the fifth lens L5 and the curvature radius R10 of the image side surface of the fifth lens L5 satisfy the following relationship: -1.94 ⁇ (R9+R10)/(R9-R10) ⁇ 1.71, the fifth lens is specified
  • the shape of L5 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of the off-axis angle of view.
  • it satisfies -1.21 ⁇ (R9+R10)/(R9-R10) ⁇ 1.37.
  • the on-axis thickness of the fifth lens L5 is d9, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02 ⁇ d9/TTL ⁇ 0.15, which is conducive to achieving ultra-thinness.
  • 0.04 ⁇ d9/TTL ⁇ 0.12 is satisfied.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the sixth lens L6 is f6, which satisfies the following relationship: -26.24 ⁇ f6/f ⁇ 1.53.
  • Sensitivity Preferably, it satisfies -16.40 ⁇ f6/f ⁇ 1.22.
  • the curvature radius R11 of the object side surface of the sixth lens L6 and the curvature radius R12 of the image side surface of the sixth lens L6 satisfy the following relationship: -8.12 ⁇ (R11+R12)/(R11-R12) ⁇ 1.53, the sixth lens is specified
  • the shape of L6 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of the off-axis angle of view.
  • it satisfies -5.07 ⁇ (R11+R12)/(R11-R12) ⁇ 1.22.
  • the on-axis thickness of the sixth lens L6 is d11, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02 ⁇ d11/TTL ⁇ 0.18, which is conducive to achieving ultra-thinness.
  • 0.03 ⁇ d11/TTL ⁇ 0.14 is satisfied.
  • the image side surface of the seventh lens L7 is concave on the paraxial axis.
  • the focal length of the overall imaging optical lens 10 is f
  • the focal length of the seventh lens L7 is f7, which satisfies the following relationship: -2.03 ⁇ f7/f ⁇ 8.69.
  • the system has better imaging quality and lower image quality.
  • Sensitivity Preferably, it satisfies -1.27 ⁇ f7/f ⁇ 6.95.
  • the curvature radius R13 of the object side surface of the seventh lens L7 and the curvature radius R14 of the image side surface of the seventh lens L7 satisfy the following relationship: -1391.79 ⁇ (R11+R12)/(R11-R12) ⁇ 1.23, and the seventh lens is specified
  • the shape of L7 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of off-axis angle of view.
  • it satisfies -869.87 ⁇ (R11+R12)/(R11-R12) ⁇ 0.98.
  • the on-axis thickness of the seventh lens L7 is d13, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.05 ⁇ d13/TTL ⁇ 0.25, which is conducive to achieving ultra-thinness.
  • 0.08 ⁇ d13/TTL ⁇ 0.20 is satisfied.
  • the focal length of the imaging optical lens 10 is f
  • the combined focal length of the first lens L1 and the second lens L2 is f12, which satisfies the following relationship: -4.01 ⁇ f12/f ⁇ -1.11, thereby eliminating the need for imaging
  • the aberration and distortion of the optical lens can suppress the back focal length of the camera optical lens and maintain the miniaturization of the image lens system group.
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 8.34 millimeters, which is beneficial to achieve ultra-thinness.
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 7.96 mm.
  • the aperture F number of the imaging optical lens 10 is less than or equal to 2.88. Large aperture, good imaging performance. Preferably, the aperture F number of the imaging optical lens 10 is less than or equal to 2.83.
  • the overall optical length TTL of the overall imaging optical lens 10 can be shortened as much as possible, and the characteristics of miniaturization can be maintained.
  • the imaging optical lens 10 of the present application will be described below with an example.
  • the symbols described in each example are as follows.
  • the unit of focal length, distance on axis, radius of curvature, thickness on axis, position of inflection point, and position of stagnation point is mm.
  • TTL total optical length (the on-axis distance from the object side of the first lens L1 to the imaging surface), the unit is mm;
  • the object side and/or the image side of the lens can also be provided with inflection points and/or stagnation points to meet high-quality imaging requirements.
  • inflection points and/or stagnation points for specific implementations, refer to the following.
  • Table 1 and Table 2 show design data of the imaging optical lens 10 of the first embodiment of the present application.
  • R The radius of curvature of the optical surface, and the radius of curvature of the center of the lens
  • R1 the radius of curvature of the object side surface of the first lens L1;
  • R2 the radius of curvature of the image side surface of the first lens L1;
  • R3 the radius of curvature of the object side surface of the second lens L2;
  • R4 the radius of curvature of the image side surface of the second lens L2;
  • R5 the radius of curvature of the object side surface of the third lens L3;
  • R6 the radius of curvature of the image side surface of the third lens L3;
  • R7 the radius of curvature of the object side of the fourth lens L4;
  • R8 the radius of curvature of the image side surface of the fourth lens L4;
  • R9 the radius of curvature of the object side surface of the fifth lens L5;
  • R10 the radius of curvature of the image side surface of the fifth lens L5;
  • R11 the radius of curvature of the object side surface of the sixth lens L6;
  • R12 the radius of curvature of the image side surface of the sixth lens L6;
  • R13 the radius of curvature of the object side surface of the seventh lens L7;
  • R14 the radius of curvature of the image side surface of the seventh lens L7;
  • R15 the radius of curvature of the object side of the optical filter GF
  • R16 the radius of curvature of the image side surface of the optical filter GF
  • d0 the on-axis distance from the aperture S1 to the object side of the first lens L1;
  • d2 the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;
  • d4 the on-axis distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;
  • d6 the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;
  • d10 the on-axis distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;
  • d11 the on-axis thickness of the sixth lens L6;
  • d12 the on-axis distance from the image side surface of the sixth lens L6 to the object side surface of the seventh lens L7;
  • d14 the on-axis distance from the image side surface of the seventh lens L7 to the object side surface of the optical filter GF;
  • d15 the axial thickness of the optical filter GF
  • d16 the on-axis distance from the image side surface of the optical filter GF to the image surface
  • nd refractive index of d-line
  • nd1 the refractive index of the d-line of the first lens L1;
  • nd2 the refractive index of the d-line of the second lens L2;
  • nd3 the refractive index of the d-line of the third lens L3;
  • nd4 the refractive index of the d-line of the fourth lens L4;
  • nd5 the refractive index of the d-line of the fifth lens L5;
  • nd6 the refractive index of the d-line of the sixth lens L6;
  • nd7 the refractive index of the d-line of the seventh lens L7;
  • ndg the refractive index of the d-line of the optical filter GF
  • vg Abbe number of optical filter GF.
  • Table 2 shows the aspheric surface data of each lens in the imaging optical lens 10 of the first embodiment of the present application.
  • k is the conic coefficient
  • A4, A6, A8, A10, A12, A14, A16 are aspherical coefficients.
  • the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1).
  • this application is not limited to the aspheric polynomial form represented by the formula (1).
  • Table 3 and Table 4 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 10 of the first embodiment of the present application.
  • P1R1 and P1R2 represent the object side and image side of the first lens L1 respectively
  • P2R1 and P2R2 represent the object side and image side of the second lens L2 respectively
  • P3R1 and P3R2 represent the object side and image side of the third lens L3 respectively.
  • P4R1, P4R2 represent the object side and image side of the fourth lens L4
  • P5R1, P5R2 represent the object side and image side of the fifth lens L5
  • P6R1, P6R2 represent the object side and image side of the sixth lens L6,
  • P7R1 P7R2 represents the object side and image side of the seventh lens L7, respectively.
  • the corresponding data in the “reflection point position” column is the vertical distance from the reflex point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • the data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • FIG. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 555 nm after passing through the imaging optical lens 10 of the first embodiment.
  • the field curvature S in FIG. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridian direction. song.
  • Table 21 shows the values corresponding to various values in each of Examples 1, 2, 3, 4, and 5 and the parameters that have been specified in the conditional expression.
  • the first embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 1.011mm
  • the full-field image height is 3.248mm
  • the maximum field of view of the imaging optical lens is 100.49°, wide-angle, ultra-thin, and its axis and axis
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.
  • the second embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present application.
  • Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 of the second embodiment of the present application.
  • Table 7 and Table 8 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 20 of the second embodiment of the present application.
  • FIG. 6 and 7 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 20 of the second embodiment.
  • FIG. 8 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 20 of the second embodiment.
  • the second embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 1.066mm
  • the full-field image height is 3.248mm
  • the maximum field of view of the imaging optical lens is 103.13°, wide-angle, ultra-thin, and its axis and axis
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.
  • the third embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 9 and Table 10 show the design data of the imaging optical lens 30 of the third embodiment of the present application.
  • Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present application.
  • Table 11 and Table 12 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 30 of the third embodiment of the present application.
  • FIG. 10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 30 of the third embodiment.
  • FIG. 12 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 30 of the third embodiment.
  • the third embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 1.116mm
  • the full-field image height is 3.248mm
  • the maximum field of view of the imaging optical lens is 114.03°, wide-angle, ultra-thin, and its axis and axis
  • the external chromatic aberration is fully corrected and has excellent optical characteristics
  • the fourth embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 13 and Table 14 show design data of the imaging optical lens 40 of the fourth embodiment of the present application.
  • Table 14 shows the aspheric surface data of each lens in the imaging optical lens 40 of the fourth embodiment of the present application.
  • Table 15 and Table 16 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 40 of the fourth embodiment of the present application.
  • P1R2 1 1.195 To P2R1 0 To To P2R2 0 To To P3R1 2 0.635 0.715 P3R2 0 To To P4R1 1 0.935 To P4R2 1 0.475 To P5R1 2 0.235 1.025 P5R2 0 To To P6R1 1 1.505 To P6R2 0 To To P7R1 0 To To P7R2 1 0.795 To
  • Stagnation position 1 Stagnation position 2 P1R1 1 0.595 To P1R2 0 To To P2R1 0 To To P2R2 0 To To P3R1 0 To To P3R2 0 To To P4R1 0 To To P4R2 1 0.915 To P5R1 2 0.465 1.175 P5R2 0 To To P6R1 0 To To P6R2 0 To To P7R1 0 To To P7R2 1 1.825 To
  • FIG. 14 and 15 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 40 of the fourth embodiment.
  • FIG. 16 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 40 of the fourth embodiment.
  • the fourth embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 1.158mm
  • the full-field image height is 3.248mm
  • the maximum field of view of the imaging optical lens is 103.40°, wide-angle, ultra-thin, and its axis and axis
  • the external chromatic aberration is fully corrected and has excellent optical characteristics.
  • the fifth embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 17 and Table 18 show the design data of the imaging optical lens 50 of the fifth embodiment of the present application.
  • Table 18 shows the aspheric surface data of each lens in the imaging optical lens 50 of the fifth embodiment of the present application.
  • Table 19 and Table 20 show the inflection point and stagnation point design data of each lens in the imaging optical lens 50 of the fifth embodiment of the present application.
  • FIG. 18 and 19 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 50 of the fifth embodiment.
  • FIG. 20 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 50 of the fifth embodiment.
  • the fifth embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 0.887mm
  • the full-field image height is 3.248mm
  • the maximum field of view of the imaging optical lens is 134.98°
  • wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
  • Example 1 Example 2
  • Example 3 Example 4
  • Example 5 f 2.830 2.798 2.567 3.039 2.440 f1 -4.401 -5.059 -4.376 -4.860 -4.333 f2 20.469 29.424 120.967 22.228 1699.999 f3 1.969 2.097 2.190 2.392 1.999 f4 -2.992 -4.801 -12.762 -9.403 -11.875 f5 -4.786 13.927 -7.779 3.895 -6.945 f6 2.883 -36.703 2.011 -33.557 1.964 f7 15.342 16.207 -2.307 -3.081 -2.260 f12 -5.156 -5.617 -4.327 -6.050 -4.079 FNO 2.80 2.63 2.30 2.63 2.75 FOV 100.49 103.13 114.03 103.40 134.98 R13/R14 1.00 1.00 -9.99 -7.91 -6.90 d2/d
  • FNO is the aperture F number of the imaging optical lens
  • f12 is the combined focal length of the first lens L1 and the second lens L2.

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Abstract

A photographic optical lens (10). The photographic optical lens (10) sequentially contains, from an object side to an image side: a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6) and a seventh lens (L7); and the following relational expressions are satisfied: 100.00° ≤ FOV ≤ 135.00°, -10.00 ≤ R13/R14 ≤ 1.00, and 1.50 ≤ d2/d4 ≤ 4.00. The photographic optical lens (10) can obtain a high imaging performance and also a low TTL.

Description

摄像光学镜头Camera optical lens 技术领域Technical field
本申请涉及光学镜头领域，特别涉及一种适用于智能手机、数码相机等手提终端设备，以及监视器、PC镜头等摄像装置的摄像光学镜头。This application relates to the field of optical lenses, and in particular to a camera optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as camera devices such as monitors and PC lenses.
背景技术Background technique
近年来，随着智能手机的兴起，小型化摄影镜头的需求日渐提高，而一般摄影镜头的感光器件不外乎是感光耦合器件(Charge Coupled Device，CCD)或互补性氧化金属半导体器件(Complementary Metal-Oxide Semicondctor Sensor，CMOS Sensor)两种，且由于半导体制造工艺技术的精进，使得感光器件的像素尺寸缩小，再加上现今电子产品以功能佳且轻薄短小的外型为发展趋势，因此，具备良好成像品质的小型化摄像镜头俨然成为目前市场上的主流。为获得较佳的成像品质，传统搭载于手机相机的镜头多采用三片式或四片式透镜结构。并且，随着技术的发展以及用户多样化需求的增多，在感光器件的像素面积不断缩小，且系统对成像品质的要求不断提高的情况下，五片式、六片式、七片式透镜结构逐渐出现在镜头设计当中。迫切需求具有优秀的光学特征、超薄且色像差充分补正的广角摄像镜头。In recent years, with the rise of smartphones, the demand for miniaturized photographic lenses has increased. The photosensitive devices of general photographic lenses are nothing more than photosensitive coupled devices (CCD) or complementary metal oxide semiconductor devices (Complementary Metal). -Oxide Semicondctor Sensor, CMOS Sensor), and due to the advancement of semiconductor manufacturing technology, the pixel size of photosensitive devices has been reduced, and the development trend of current electronic products with good functions, light, thin and short appearance, therefore, has The miniaturized camera lens with good image quality has become the mainstream in the current market. In order to obtain better imaging quality, the lenses traditionally mounted on mobile phone cameras mostly adopt a three-element or four-element lens structure. Moreover, with the development of technology and the increase of diversified needs of users, the pixel area of photosensitive devices is shrinking, and the system's requirements for image quality continue to increase, five-element, six-element, and seven-element lens structures Gradually appeared in the lens design. There is an urgent need for a wide-angle camera lens with excellent optical characteristics, ultra-thin and fully corrected chromatic aberrations.
申请内容Application content
针对上述问题，本申请的目的在于提供一种摄像光学镜头，能在获得高成像性能的同时，满足超薄化和广角化的要求。In view of the above-mentioned problems, the purpose of the present application is to provide an imaging optical lens that can meet the requirements of ultra-thinness and wide-angle while obtaining high imaging performance.
为解决上述技术问题，本申请的实施方式提供了一种摄像光学镜头，所述摄像光学镜头，自物侧至像侧依序包含：具有负屈折力的第一透镜，具有正屈折力的第二透镜，具有正屈折力的第三透镜，具有负屈折力的第四透镜，第五透镜，第六透镜，以及第七透镜；In order to solve the above technical problems, the embodiments of the present application provide an imaging optical lens. The imaging optical lens includes in order from the object side to the image side: a first lens with negative refractive power, and a first lens with positive refractive power. Two lenses, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens, a sixth lens, and a seventh lens;
所述摄像光学镜头的最大视场角为FOV，所述第七透镜物侧面的曲率半径为R13，所述第七透镜像侧面的曲率半径为R14，第一透镜的像侧面到第二透镜的物侧面的轴上距离为d2，第二透镜的像侧面到第三透镜的物侧面的轴上距离为d4，满足下列关系式：100.00°≤FOV≤135.00°；-10.00≤R13/R14≤1.00；1.50≤d2/d4≤4.00。The maximum angle of view of the imaging optical lens is FOV, the radius of curvature of the object side of the seventh lens is R13, the radius of curvature of the image side of the seventh lens is R14, and the image side of the first lens to the second lens The on-axis distance of the object side is d2, and the on-axis distance from the image side of the second lens to the object side of the third lens is d4, which satisfies the following relationship: 100.00°≤FOV≤135.00°; -10.00≤R13/R14≤1.00 ; 1.50≤d2/d4≤4.00.
优选的，所述第一透镜物侧面于近轴为凹面，其像侧面于近轴为凹面；所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第一透镜物侧面的曲率半径为R1，所述第一 透镜像侧面的曲率半径为R2，以及所述第一透镜的轴上厚度为d1，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-3.62≤f1/f≤-1.04；0.11≤(R1+R2)/(R1-R2)≤1.00；0.04≤d1/TTL≤0.14。Preferably, the object side surface of the first lens is concave on the paraxial axis, and the image side surface is concave on the paraxial axis; the focal length of the imaging optical lens is f, the focal length of the first lens is f1, and the first lens The radius of curvature of the object side surface is R1, the radius of curvature of the image side surface of the first lens is R2, and the axial thickness of the first lens is d1, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied : -3.62≤f1/f≤-1.04; 0.11≤(R1+R2)/(R1-R2)≤1.00; 0.04≤d1/TTL≤0.14.
优选的，所述摄像光学镜头满足下列关系式：-2.26≤f1/f≤-1.30；0.18≤(R1+R2)/(R1-R2)≤0.80；0.06≤d1/TTL≤0.11。Preferably, the imaging optical lens satisfies the following relationship: -2.26≤f1/f≤-1.30; 0.18≤(R1+R2)/(R1-R2)≤0.80; 0.06≤d1/TTL≤0.11.
优选的，所述第二透镜物侧面于近轴为凸面，其像侧面于近轴为凹面；所述摄像光学镜头的焦距为f，所述第二透镜的焦距为f2，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：3.62≤f2/f≤1045.28；-46.06≤(R3+R4)/(R3-R4)≤936.38；0.02≤d3/TTL≤0.09。Preferably, the object side of the second lens is convex on the paraxial axis, and the image side is concave on the paraxial; the focal length of the imaging optical lens is f, the focal length of the second lens is f2, and the second lens The curvature radius of the object side is R3, the curvature radius of the image side of the second lens is R4, the on-axis thickness of the second lens is d3, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: 3.62≤f2/f≤1045.28; -46.06≤(R3+R4)/(R3-R4)≤936.38; 0.02≤d3/TTL≤0.09.
优选的，所述摄像光学镜头满足下列关系式：5.79≤f2/f≤836.22；-28.79≤(R3+R4)/(R3-R4)≤749.10；0.03≤d3/TTL≤0.07。Preferably, the imaging optical lens satisfies the following relationship: 5.79≤f2/f≤836.22; -28.79≤(R3+R4)/(R3-R4)≤749.10; 0.03≤d3/TTL≤0.07.
优选的，所述第三透镜物侧面于近轴为凸面，其像侧面于近轴为凸面；所述摄像光学镜头的焦距为f，所述第三透镜的焦距为f3，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：0.35≤f3/f≤1.28；0.12≤(R5+R6)/(R5-R6)≤0.78；0.04≤d5/TTL≤0.21。Preferably, the object side surface of the third lens is convex on the paraxial axis, and the image side surface is convex on the paraxial axis; the focal length of the imaging optical lens is f, the focal length of the third lens is f3, and the third lens The curvature radius of the object side surface is R5, the curvature radius of the image side surface of the third lens is R6, the axial thickness of the third lens is d5, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: 0.35≤f3/f≤1.28; 0.12≤(R5+R6)/(R5-R6)≤0.78; 0.04≤d5/TTL≤0.21.
优选的，所述摄像光学镜头满足下列关系式：0.56≤f3/f≤1.02；0.20≤(R5+R6)/(R5-R6)≤0.62；0.06≤d5/TTL≤0.17。Preferably, the imaging optical lens satisfies the following relationship: 0.56≤f3/f≤1.02; 0.20≤(R5+R6)/(R5-R6)≤0.62; 0.06≤d5/TTL≤0.17.
优选的，所述摄像光学镜头的焦距为f，所述第四透镜的焦距为f4，所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-9.94≤f4/f≤-0.70；-7.00≤(R7+R8)/(R7-R8)≤4.94；0.02≤d7/TTL≤0.15。Preferably, the focal length of the imaging optical lens is f, the focal length of the fourth lens is f4, the radius of curvature of the object side of the fourth lens is R7, and the radius of curvature of the image side of the fourth lens is R8, so The axial thickness of the fourth lens is d7, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: -9.94≤f4/f≤-0.70; -7.00≤(R7+R8)/(R7- R8)≤4.94; 0.02≤d7/TTL≤0.15.
优选的，所述摄像光学镜头满足下列关系式：-6.21≤f4/f≤-0.88；-4.37≤(R7+R8)/(R7-R8)≤3.95；0.02≤d7/TTL≤0.12。Preferably, the imaging optical lens satisfies the following relationship: -6.21≤f4/f≤-0.88; -4.37≤(R7+R8)/(R7-R8)≤3.95; 0.02≤d7/TTL≤0.12.
优选的，所述摄像光学镜头的焦距为f，所述第五透镜的焦距为f5，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为R10，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-6.06≤f5/f≤7.47；-1.94≤(R9+R10)/(R9-R10)≤1.71；0.02≤d9/TTL≤0.15。Preferably, the focal length of the imaging optical lens is f, the focal length of the fifth lens is f5, the radius of curvature of the object side of the fifth lens is R9, and the radius of curvature of the image side of the fifth lens is R10, so The on-axis thickness of the fifth lens is d9, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -6.06≤f5/f≤7.47; -1.94≤(R9+R10)/(R9-R10 )≤1.71; 0.02≤d9/TTL≤0.15.
优选的，所述摄像光学镜头满足下列关系式：-3.79≤f5/f≤5.97；-1.21≤(R9+R10)/(R9-R10)≤1.37；0.04≤d9/TTL≤0.12。Preferably, the imaging optical lens satisfies the following relationship: -3.79≤f5/f≤5.97; -1.21≤(R9+R10)/(R9-R10)≤1.37; 0.04≤d9/TTL≤0.12.
优选的，所述摄像光学镜头的焦距为f，所述第六透镜的焦距为f6，所述第六透镜物侧 面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-26.24≤f6/f≤1.53；-8.12≤(R11+R12)/(R11-R12)≤1.53；0.02≤d11/TTL≤0.18。Preferably, the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the radius of curvature of the object side of the sixth lens is R11, and the radius of curvature of the image side of the sixth lens is R12, so The on-axis thickness of the sixth lens is d11, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -26.24≤f6/f≤1.53; -8.12≤(R11+R12)/(R11-R12 )≤1.53; 0.02≤d11/TTL≤0.18.
优选的，所述摄像光学镜头满足下列关系式：-16.40≤f6/f≤1.22；-5.07≤(R11+R12)/(R11-R12)≤1.22；0.03≤d11/TTL≤0.14。Preferably, the imaging optical lens satisfies the following relationship: -16.40≤f6/f≤1.22; -5.07≤(R11+R12)/(R11-R12)≤1.22; 0.03≤d11/TTL≤0.14.
优选的，所述第七透镜的像侧面于近轴为凹面，所述摄像光学镜头的焦距为f，所述第七透镜的焦距为f7，所述第七透镜的轴上厚度为d13，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-2.03≤f7/f≤8.69；-1391.79≤(R13+R14)/(R13-R14)≤1.23；0.05≤d13/TTL≤0.25。Preferably, the image side surface of the seventh lens is concave on the paraxial axis, the focal length of the imaging optical lens is f, the focal length of the seventh lens is f7, and the on-axis thickness of the seventh lens is d13, so The total optical length of the camera optical lens is TTL, and satisfies the following relationship: -2.03≤f7/f≤8.69; -1391.79≤(R13+R14)/(R13-R14)≤1.23; 0.05≤d13/TTL≤0.25.
优选的，所述摄像光学镜头满足下列关系式：-1.27≤f7/f≤6.95；-869.87≤(R13+R14)/(R13-R14)≤0.98；0.08≤d13/TTL≤0.20。Preferably, the imaging optical lens satisfies the following relationship: -1.27≤f7/f≤6.95; -869.87≤(R13+R14)/(R13-R14)≤0.98; 0.08≤d13/TTL≤0.20.
优选的，所述摄像光学镜头的焦距为f，所述第一透镜与所述第二透镜的组合焦距为f12，且满足下列关系式：-4.01≤f12/f≤-1.11。Preferably, the focal length of the imaging optical lens is f, the combined focal length of the first lens and the second lens is f12, and the following relationship is satisfied: -4.01≤f12/f≤-1.11.
优选的，所述摄像光学镜头的光学总长TTL小于或等于8.34毫米。Preferably, the total optical length TTL of the imaging optical lens is less than or equal to 8.34 mm.
优选的，所述摄像光学镜头的光学总长TTL小于或等于7.96毫米。Preferably, the total optical length TTL of the imaging optical lens is less than or equal to 7.96 mm.
优选的，所述摄像光学镜头的光圈F数小于或等于2.88。Preferably, the aperture F number of the imaging optical lens is less than or equal to 2.88.
优选的，所述摄像光学镜头的光圈F数小于或等于2.83。Preferably, the aperture F number of the imaging optical lens is less than or equal to 2.83.
本申请的有益效果在于:根据本申请的摄像光学镜头具有优秀的光学特性，超薄，广角且色像差充分补正，尤其适用于由高像素用的CCD、CMOS等摄像元件构成的手机摄像镜头组件和WEB摄像镜头。The beneficial effects of the present application are: the imaging optical lens according to the present application has excellent optical characteristics, is ultra-thin, wide-angle and fully compensated for chromatic aberration, and is especially suitable for mobile phone camera lenses composed of high-pixel CCD, CMOS and other imaging elements Components and WEB camera lens.
附图说明Description of the drawings
图1是本申请第一实施方式的摄像光学镜头的结构示意图；FIG. 1 is a schematic diagram of the structure of an imaging optical lens according to a first embodiment of the present application;
图2是图1所示摄像光学镜头的轴向像差示意图；FIG. 2 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 1;
图3是图1所示摄像光学镜头的倍率色差示意图；3 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 1;
图4是图1所示摄像光学镜头的场曲及畸变示意图；4 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 1;
图5是本申请第二实施方式的摄像光学镜头的结构示意图；5 is a schematic diagram of the structure of an imaging optical lens according to a second embodiment of the present application;
图6是图5所示摄像光学镜头的轴向像差示意图；FIG. 6 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 5;
图7是图5所示摄像光学镜头的倍率色差示意图；FIG. 7 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 5;
图8是图5所示摄像光学镜头的场曲及畸变示意图；FIG. 8 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 5;
图9是本申请第三实施方式的摄像光学镜头的结构示意图；FIG. 9 is a schematic diagram of the structure of an imaging optical lens according to a third embodiment of the present application;
图10是图9所示摄像光学镜头的轴向像差示意图；10 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 9;
图11是图9所示摄像光学镜头的倍率色差示意图；11 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 9;
图12是图9所示摄像光学镜头的场曲及畸变示意图；FIG. 12 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 9;
图13是本申请第四实施方式的摄像光学镜头的结构示意图；FIG. 13 is a schematic structural diagram of an imaging optical lens according to a fourth embodiment of the present application;
图14是图13所示摄像光学镜头的轴向像差示意图；FIG. 14 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 13;
图15是图13所示摄像光学镜头的倍率色差示意图；15 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 13;
图16是图13所示摄像光学镜头的场曲及畸变示意图；16 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 13;
图17是本申请第五实施方式的摄像光学镜头的结构示意图；FIG. 17 is a schematic structural diagram of an imaging optical lens according to a fifth embodiment of the present application;
图18是图17所示摄像光学镜头的轴向像差示意图；18 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 17;
图19是图17所示摄像光学镜头的倍率色差示意图；19 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 17;
图20是图17所示摄像光学镜头的场曲及畸变示意图。20 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 17.
具体实施方式Detailed ways
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施方式中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本申请所要求保护的技术方案。In order to make the purpose, technical solutions, and advantages of the present application clearer, the various embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in each embodiment of the present application, many technical details are proposed in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed in this application can be realized.
(第一实施方式)(First embodiment)
参考附图，本申请提供了一种摄像光学镜头10。图1所示为本申请第一实施方式的摄像光学镜头10，该摄像光学镜头10包括七个透镜。具体的，所述摄像光学镜头10，由物侧至像侧依序包括：具有负屈折力的第一透镜L1、具有正屈折力的第二透镜L2、光圈S1、具有正屈折力的第三透镜L3、具有负屈折力的第四透镜L4、第五透镜L5、第六透镜L6以及第七透镜L7。第七透镜L7的像侧可设置有光学过滤片(filter)GF等光学元件。With reference to the drawings, the present application provides an imaging optical lens 10. FIG. 1 shows an imaging optical lens 10 according to the first embodiment of the application. The imaging optical lens 10 includes seven lenses. Specifically, the imaging optical lens 10 includes in order from the object side to the image side: a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, an aperture S1, and a third lens with a positive refractive power. The lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 having negative refractive power. An optical element such as an optical filter GF may be provided on the image side of the seventh lens L7.
定义摄像光学镜头10的最大视场角为FOV，100.00≤FOV≤135.00，定义摄像光学镜头10的视场角，在范围内，可以实现超广角摄像，提升用户体验。优选的，满足100.00°≤FOV ≤≤135.00°。Define the maximum field of view of the camera optical lens 10 as FOV, 100.00≤FOV≤135.00, define the field of view of the camera optical lens 10, within the range, can achieve ultra-wide-angle photography and improve user experience. Preferably, it satisfies 100.00°≤FOV ≤≤135.00°.
定义所述第七透镜L7物侧面的曲率半径为R13，所述第七透镜L7像侧面的曲率半径为R14，-10.00≤R13/R14≤1.00，规定了第七透镜L7的形状，在范围内时，随着镜头向超薄广角化发展，有利于补正轴外画角的像差问题。Define the radius of curvature of the object side surface of the seventh lens L7 as R13, and the radius of curvature of the image side surface of the seventh lens L7 as R14, -10.00≤R13/R14≤1.00, which defines the shape of the seventh lens L7, within the range When the lens develops towards ultra-thin and wide-angle, it is helpful to correct the aberration of off-axis angle of view.
定义第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离为d2，第二透镜L2的像侧面到第三透镜L3的物侧面的轴上距离为d4，1.50≤d2/d4≤4.00，规定了第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离和第二透镜L2的像侧面到第三透镜L3的物侧面的轴上距离的比值，在范围内时，有利于镜头向超薄化发展。Define the on-axis distance from the image side of the first lens L1 to the object side of the second lens L2 as d2, and the on-axis distance from the image side of the second lens L2 to the object side of the third lens L3 as d4, 1.50≤d2/d4 ≤4.00, which specifies the ratio of the on-axis distance from the image side of the first lens L1 to the object side of the second lens L2 and the on-axis distance from the image side of the second lens L2 to the object side of the third lens L3, within the range At this time, it is conducive to the development of ultra-thin lenses.
当本申请所述摄像光学镜头10的最大视场角、各透镜的轴上厚度和曲率半径满足上述关系式时，可以使摄像光学镜头10具有高性能，且满足低TTL的设计需求。When the maximum field of view of the imaging optical lens 10, the on-axis thickness and the radius of curvature of each lens meet the above-mentioned relational expressions, the imaging optical lens 10 can be made to have high performance and meet the design requirements of low TTL.
本实施方式中，所述第一透镜L1物侧面于近轴为凹面，其像侧面于近轴为凹面。In this embodiment, the object side surface of the first lens L1 is concave on the paraxial axis, and the image side surface of the first lens L1 is concave on the paraxial axis.
整体摄像光学镜头10的焦距为f，第一透镜L1焦距f1，满足下列关系式：-3.62≤f1/f≤-1.04，规定了第一透镜L1的焦距与整体焦距的比值。在规定的范围内时，第一透镜具有适当的正屈折力，有利于减小系统像差，同时有利于镜头向超薄化、广角化发展。优选地，满足-2.26≤f1/f≤-1.30。The focal length of the overall imaging optical lens 10 is f, and the focal length f1 of the first lens L1 satisfies the following relationship: -3.62≤f1/f≤-1.04, which specifies the ratio of the focal length of the first lens L1 to the overall focal length. When within the specified range, the first lens has an appropriate positive refractive power, which is beneficial to reduce system aberrations, and at the same time, is beneficial to the development of ultra-thin and wide-angle lenses. Preferably, it satisfies -2.26≤f1/f≤-1.30.
第一透镜L1物侧面的曲率半径R1，第一透镜L1像侧面的曲率半径R2，满足下列关系式：0.11≤(R1+R2)/(R1-R2)≤1.00，合理控制第一透镜的形状，使得第一透镜能够有效地校正系统球差；优选的，满足0.18≤(R1+R2)/(R1-R2)≤0.80。The curvature radius R1 of the object side surface of the first lens L1 and the curvature radius R2 of the image side surface of the first lens L1 satisfy the following relationship: 0.11≤(R1+R2)/(R1-R2)≤1.00, reasonably control the shape of the first lens , So that the first lens can effectively correct the spherical aberration of the system; preferably, 0.18≤(R1+R2)/(R1-R2)≤0.80 is satisfied.
第一透镜L1的轴上厚度为d1，摄像光学镜头的光学总长为TTL，满足下列关系式：0.04≤d1/TTL≤0.14，有利于实现超薄化。优选的，满足0.06≤d1/TTL≤0.11。The axial thickness of the first lens L1 is d1, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.04≤d1/TTL≤0.14, which is beneficial to realize ultra-thinness. Preferably, it satisfies 0.06≤d1/TTL≤0.11.
本实施方式中，所述第二透镜L2物侧面于近轴为凸面，其像侧面于近轴为凹面。In this embodiment, the object side surface of the second lens L2 is convex on the paraxial axis, and the image side surface of the second lens L2 is concave on the paraxial axis.
整体摄像光学镜头10的焦距为f，第二透镜L2焦距f2，满足下列关系式：3.62≤f2/f≤1045.28，通过将第二透镜L2的正光焦度控制在合理范围，有利于矫正光学系统的像差。优选的，5.79≤f2/f≤836.22。The focal length of the overall imaging optical lens 10 is f, and the focal length of the second lens L2 is f2, which satisfies the following relationship: 3.62≤f2/f≤1045.28. By controlling the positive refractive power of the second lens L2 in a reasonable range, it is beneficial to correct the optical system The aberrations. Preferably, 5.79≤f2/f≤836.22.
第二透镜L2物侧面的曲率半径R3，第二透镜L2像侧面的曲率半径R4，满足下列关系式：-46.06≤(R3+R4)/(R3-R4)≤936.38，规定了第二透镜L2的形状，在范围内时，随着镜头向超薄广角化发展，有利于补正轴上色像差问题。优选的，满足-28.79≤(R3+R4)/(R3-R4)≤749.10。The curvature radius R3 of the object side surface of the second lens L2 and the curvature radius R4 of the image side surface of the second lens L2 satisfy the following relationship: -46.06≤(R3+R4)/(R3-R4)≤936.38, which specifies the second lens L2 When the shape of the lens is within the range, as the lens develops towards ultra-thin and wide-angle, it is helpful to correct the problem of axial chromatic aberration. Preferably, it satisfies -28.79≤(R3+R4)/(R3-R4)≤749.10.
第二透镜L2的轴上厚度为d3，摄像光学镜头的光学总长为TTL，满足下列关系式：0.02≤d3/TTL≤0.09，有利于实现超薄化。优选的，满足0.03≤d3/TTL≤0.07。The on-axis thickness of the second lens L2 is d3, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02≤d3/TTL≤0.09, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.03≤d3/TTL≤0.07.
本实施方式中，所述第三透镜L3物侧面于近轴为凸面，其像侧面于近轴为凸面。In this embodiment, the object side surface of the third lens L3 is convex on the paraxial axis, and the image side surface thereof is convex on the paraxial axis.
整体摄像光学镜头10的焦距为f，第三透镜L3焦距f3，以及满足下列关系式：0.35≤f3/f≤1.28，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。优选的，满足0.56≤f3/f≤1.02。The focal length of the overall imaging optical lens 10 is f, the focal length of the third lens L3 is f3, and the following relationship is satisfied: 0.35≤f3/f≤1.28. Through the reasonable distribution of optical power, the system has better imaging quality and lower Sensitivity. Preferably, it satisfies 0.56≤f3/f≤1.02.
第三透镜L3物侧面的曲率半径R5，第三透镜L3像侧面的曲率半径R6，满足下列关系式：0.12≤(R5+R6)/(R5-R6)≤0.78，可有效控制第三透镜L3的形状，有利于第三透镜L3成型，在条件式规定范围内，可以缓和光线经过镜片的偏折程度，有效减小像差。优选的，满足0.20≤(R5+R6)/(R5-R6)≤0.62。The curvature radius R5 of the object side of the third lens L3 and the curvature radius R6 of the image side of the third lens L3 satisfy the following relationship: 0.12≤(R5+R6)/(R5-R6)≤0.78, which can effectively control the third lens L3 The shape of, is conducive to the molding of the third lens L3. Within the specified range of the conditional formula, the degree of deflection of light passing through the lens can be eased, and aberrations can be effectively reduced. Preferably, it satisfies 0.20≤(R5+R6)/(R5-R6)≤0.62.
第三透镜L3的轴上厚度为d5，摄像光学镜头的光学总长为TTL，满足下列关系式：0.04≤d5/TTL≤0.21，有利于实现超薄化。优选的，满足0.06≤d5/TTL≤0.17。The axial thickness of the third lens L3 is d5, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.04≤d5/TTL≤0.21, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.06≤d5/TTL≤0.17.
整体摄像光学镜头10的焦距为f，第四透镜L4焦距f4，满足下列关系式：-9.94≤f4/f≤-0.70，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。优选的，满足-6.21≤f4/f≤-0.88。The focal length of the overall imaging optical lens 10 is f, and the focal length of the fourth lens L4 is f4, which satisfies the following relationship: -9.94≤f4/f≤-0.70. Through the reasonable distribution of optical power, the system has better imaging quality and comparison. Low sensitivity. Preferably, it satisfies -6.21≤f4/f≤-0.88.
第四透镜L4物侧面的曲率半径R7，第四透镜L4像侧面的曲率半径R8，满足下列关系式：-7.00≤(R7+R8)/(R7-R8)≤4.94，规定的是第四透镜L4的形状，在范围内时，随着超薄广角化的发展，易于补正轴外画角的像差等问题。优选的，满足-4.37≤(R7+R8)/(R7-R8)≤3.95。The curvature radius R7 of the object side surface of the fourth lens L4 and the curvature radius R8 of the image side surface of the fourth lens L4 satisfy the following relationship: -7.00≤(R7+R8)/(R7-R8)≤4.94, the fourth lens is specified When the shape of L4 is within the range, with the development of ultra-thin and wide-angle, it is easy to correct problems such as the aberration of the off-axis angle of view. Preferably, it satisfies -4.37≤(R7+R8)/(R7-R8)≤3.95.
第四透镜L4的轴上厚度为d7，摄像光学镜头的光学总长为TTL，满足下列关系式：0.02≤d7/TTL≤0.15，有利于实现超薄化。优选的，满足0.02≤d7/TTL≤0.12。The axial thickness of the fourth lens L4 is d7, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02≤d7/TTL≤0.15, which is conducive to achieving ultra-thinness. Preferably, it satisfies 0.02≤d7/TTL≤0.12.
整体摄像光学镜头10的焦距为f，第五透镜L5焦距f5，满足下列关系式：-6.06≤f5/f≤7.47，对第五透镜L5的限定可有效的使得摄像镜头的光线角度平缓，降低公差敏感度。优选的，满足-3.79≤f5/f≤5.97。The focal length of the overall imaging optical lens 10 is f, and the focal length of the fifth lens L5 is f5, which satisfies the following relationship: -6.06≤f5/f≤7.47. The limitation on the fifth lens L5 can effectively make the light angle of the imaging lens smooth and reduce Tolerance sensitivity. Preferably, it satisfies -3.79≤f5/f≤5.97.
第五透镜L5物侧面的曲率半径R9，第五透镜L5像侧面的曲率半径R10，满足下列关系式：-1.94≤(R9+R10)/(R9-R10)≤1.71，规定的是第五透镜L5的形状，在条件范围内时，随着超薄广角化发展，有利于补正轴外画角的像差等问题。优选的，满足-1.21≤(R9+R10)/(R9-R10)≤1.37。The curvature radius R9 of the object side surface of the fifth lens L5 and the curvature radius R10 of the image side surface of the fifth lens L5 satisfy the following relationship: -1.94≤(R9+R10)/(R9-R10)≤1.71, the fifth lens is specified When the shape of L5 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of the off-axis angle of view. Preferably, it satisfies -1.21≤(R9+R10)/(R9-R10)≤1.37.
第五透镜L5的轴上厚度为d9，摄像光学镜头的光学总长为TTL，满足下列关系式：0.02≤d9/TTL≤0.15，有利于实现超薄化。优选的，满足0.04≤d9/TTL≤0.12。The on-axis thickness of the fifth lens L5 is d9, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02≤d9/TTL≤0.15, which is conducive to achieving ultra-thinness. Preferably, 0.04≤d9/TTL≤0.12 is satisfied.
整体摄像光学镜头10的焦距为f，第六透镜L6焦距f6，满足下列关系式：-26.24≤f6/f≤1.53，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。优选的，满足-16.40≤f6/f≤1.22。The focal length of the overall imaging optical lens 10 is f, and the focal length of the sixth lens L6 is f6, which satisfies the following relationship: -26.24≤f6/f≤1.53. Through the reasonable distribution of optical power, the system has better imaging quality and lower image quality. Sensitivity. Preferably, it satisfies -16.40≤f6/f≤1.22.
第六透镜L6物侧面的曲率半径R11，第六透镜L6像侧面的曲率半径R12，满足下列关系式：-8.12≤(R11+R12)/(R11-R12)≤1.53，规定的是第六透镜L6的形状，在条件范围内时，随着超薄广角化发展，有利于补正轴外画角的像差等问题。优选的，满足-5.07≤ (R11+R12)/(R11-R12)≤1.22。The curvature radius R11 of the object side surface of the sixth lens L6 and the curvature radius R12 of the image side surface of the sixth lens L6 satisfy the following relationship: -8.12≤(R11+R12)/(R11-R12)≤1.53, the sixth lens is specified When the shape of L6 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of the off-axis angle of view. Preferably, it satisfies -5.07≤(R11+R12)/(R11-R12)≤1.22.
第六透镜L6的轴上厚度为d11，摄像光学镜头的光学总长为TTL，满足下列关系式：0.02≤d11/TTL≤0.18，有利于实现超薄化。优选的，满足0.03≤d11/TTL≤0.14。The on-axis thickness of the sixth lens L6 is d11, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.02≤d11/TTL≤0.18, which is conducive to achieving ultra-thinness. Preferably, 0.03≤d11/TTL≤0.14 is satisfied.
本实施方式中，第七透镜L7像侧面于近轴为凹面。In this embodiment, the image side surface of the seventh lens L7 is concave on the paraxial axis.
整体摄像光学镜头10的焦距为f，第七透镜L7焦距f7，满足下列关系式：-2.03≤f7/f≤8.69，通过光焦度的合理分配，使得系统具有较佳的成像品质和较低的敏感性。优选的，满足-1.27≤f7/f≤6.95。The focal length of the overall imaging optical lens 10 is f, and the focal length of the seventh lens L7 is f7, which satisfies the following relationship: -2.03≤f7/f≤8.69. Through the reasonable distribution of optical power, the system has better imaging quality and lower image quality. Sensitivity. Preferably, it satisfies -1.27≤f7/f≤6.95.
第七透镜L7物侧面的曲率半径R13，第七透镜L7像侧面的曲率半径R14，满足下列关系式：-1391.79≤(R11+R12)/(R11-R12)≤1.23，规定的是第七透镜L7的形状，在条件范围内时，随着超薄广角化发展，有利于补正轴外画角的像差等问题。优选的，满足-869.87≤(R11+R12)/(R11-R12)≤0.98。The curvature radius R13 of the object side surface of the seventh lens L7 and the curvature radius R14 of the image side surface of the seventh lens L7 satisfy the following relationship: -1391.79≤(R11+R12)/(R11-R12)≤1.23, and the seventh lens is specified When the shape of L7 is within the range of conditions, with the development of ultra-thin and wide-angle, it is conducive to correcting the aberration of off-axis angle of view. Preferably, it satisfies -869.87≤(R11+R12)/(R11-R12)≤0.98.
第七透镜L7的轴上厚度为d13，摄像光学镜头的光学总长为TTL，满足下列关系式：0.05≤d13/TTL≤0.25，有利于实现超薄化。优选的，满足0.08≤d13/TTL≤0.20。The on-axis thickness of the seventh lens L7 is d13, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship: 0.05≤d13/TTL≤0.25, which is conducive to achieving ultra-thinness. Preferably, 0.08≤d13/TTL≤0.20 is satisfied.
本实施方式中，摄像光学镜头10的焦距为f，第一透镜L1与第二透镜L2的组合焦距为f12，满足下列关系式：-4.01≤f12/f≤-1.11,借此，可消除摄像光学镜头的像差与歪曲，且可压制摄像光学镜头后焦距，维持影像镜片系统组小型化。优选的，-2.51≤f12/f≤-1.39。In this embodiment, the focal length of the imaging optical lens 10 is f, and the combined focal length of the first lens L1 and the second lens L2 is f12, which satisfies the following relationship: -4.01≤f12/f≤-1.11, thereby eliminating the need for imaging The aberration and distortion of the optical lens can suppress the back focal length of the camera optical lens and maintain the miniaturization of the image lens system group. Preferably, -2.51≤f12/f≤-1.39.
本实施方式中，摄像光学镜头10的光学总长TTL小于或等于8.34毫米，有利于实现超薄化。优选的，摄像光学镜头10的光学总长TTL小于或等于7.96毫米。In this embodiment, the total optical length TTL of the imaging optical lens 10 is less than or equal to 8.34 millimeters, which is beneficial to achieve ultra-thinness. Preferably, the total optical length TTL of the imaging optical lens 10 is less than or equal to 7.96 mm.
本实施方式中，摄像光学镜头10的光圈F数小于或等于2.88。大光圈，成像性能好。优选的，摄像光学镜头10的光圈F数小于或等于2.83。In this embodiment, the aperture F number of the imaging optical lens 10 is less than or equal to 2.88. Large aperture, good imaging performance. Preferably, the aperture F number of the imaging optical lens 10 is less than or equal to 2.83.
如此设计，能够使得整体摄像光学镜头10的光学总长TTL尽量变短，维持小型化的特性。With such a design, the overall optical length TTL of the overall imaging optical lens 10 can be shortened as much as possible, and the characteristics of miniaturization can be maintained.
下面将用实例进行说明本申请的摄像光学镜头10。各实例中所记载的符号如下所示。焦距、轴上距离、曲率半径、轴上厚度、反曲点位置、驻点位置的单位为mm。The imaging optical lens 10 of the present application will be described below with an example. The symbols described in each example are as follows. The unit of focal length, distance on axis, radius of curvature, thickness on axis, position of inflection point, and position of stagnation point is mm.
TTL：光学总长(第一透镜L1的物侧面到成像面的轴上距离)，单位为mm；TTL: total optical length (the on-axis distance from the object side of the first lens L1 to the imaging surface), the unit is mm;
优选的，所述透镜的物侧面和/或像侧面上还可以设置有反曲点和/或驻点，以满足高品质的成像需求，具体的可实施方案，参下所述。Preferably, the object side and/or the image side of the lens can also be provided with inflection points and/or stagnation points to meet high-quality imaging requirements. For specific implementations, refer to the following.
表1、表2示出本申请第一实施方式的摄像光学镜头10的设计数据。Table 1 and Table 2 show design data of the imaging optical lens 10 of the first embodiment of the present application.
【表1】【Table 1】
Figure PCTCN2019128561-appb-000001
Figure PCTCN2019128561-appb-000001
Figure PCTCN2019128561-appb-000002
Figure PCTCN2019128561-appb-000002
其中，各符号的含义如下。Among them, the meaning of each symbol is as follows.
S1：光圈；S1: aperture;
R：光学面的曲率半径、透镜时为中心曲率半径；R: The radius of curvature of the optical surface, and the radius of curvature of the center of the lens;
R1：第一透镜L1的物侧面的曲率半径；R1: the radius of curvature of the object side surface of the first lens L1;
R2：第一透镜L1的像侧面的曲率半径；R2: the radius of curvature of the image side surface of the first lens L1;
R3：第二透镜L2的物侧面的曲率半径；R3: the radius of curvature of the object side surface of the second lens L2;
R4：第二透镜L2的像侧面的曲率半径；R4: the radius of curvature of the image side surface of the second lens L2;
R5：第三透镜L3的物侧面的曲率半径；R5: the radius of curvature of the object side surface of the third lens L3;
R6：第三透镜L3的像侧面的曲率半径；R6: the radius of curvature of the image side surface of the third lens L3;
R7：第四透镜L4的物侧面的曲率半径；R7: the radius of curvature of the object side of the fourth lens L4;
R8：第四透镜L4的像侧面的曲率半径；R8: the radius of curvature of the image side surface of the fourth lens L4;
R9：第五透镜L5的物侧面的曲率半径；R9: the radius of curvature of the object side surface of the fifth lens L5;
R10：第五透镜L5的像侧面的曲率半径；R10: the radius of curvature of the image side surface of the fifth lens L5;
R11：第六透镜L6的物侧面的曲率半径；R11: the radius of curvature of the object side surface of the sixth lens L6;
R12：第六透镜L6的像侧面的曲率半径；R12: the radius of curvature of the image side surface of the sixth lens L6;
R13：第七透镜L7的物侧面的曲率半径；R13: the radius of curvature of the object side surface of the seventh lens L7;
R14：第七透镜L7的像侧面的曲率半径；R14: the radius of curvature of the image side surface of the seventh lens L7;
R15：光学过滤片GF的物侧面的曲率半径；R15: the radius of curvature of the object side of the optical filter GF;
R16：光学过滤片GF的像侧面的曲率半径；R16: the radius of curvature of the image side surface of the optical filter GF;
d：透镜的轴上厚度与透镜之间的轴上距离；d: the on-axis thickness of the lens and the on-axis distance between the lenses;
d0：光圈S1到第一透镜L1的物侧面的轴上距离；d0: the on-axis distance from the aperture S1 to the object side of the first lens L1;
d1：第一透镜L1的轴上厚度；d1: the on-axis thickness of the first lens L1;
d2：第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离；d2: the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;
d3：第二透镜L2的轴上厚度；d3: the on-axis thickness of the second lens L2;
d4：第二透镜L2的像侧面到第三透镜L3的物侧面的轴上距离；d4: the on-axis distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;
d5：第三透镜L3的轴上厚度；d5: the on-axis thickness of the third lens L3;
d6：第三透镜L3的像侧面到第四透镜L4的物侧面的轴上距离；d6: the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;
d7：第四透镜L4的轴上厚度；d7: the on-axis thickness of the fourth lens L4;
d8：第四透镜L4的像侧面到第五透镜L5的物侧面的轴上距离；d8: the on-axis distance from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;
d9：第五透镜L5的轴上厚度；d9: the on-axis thickness of the fifth lens L5;
d10：第五透镜L5的像侧面到第六透镜L6的物侧面的轴上距离；d10: the on-axis distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;
d11：第六透镜L6的轴上厚度；d11: the on-axis thickness of the sixth lens L6;
d12：第六透镜L6的像侧面到第七透镜L7的物侧面的轴上距离；d12: the on-axis distance from the image side surface of the sixth lens L6 to the object side surface of the seventh lens L7;
d13：第七透镜L7的轴上厚度；d13: the on-axis thickness of the seventh lens L7;
d14：第七透镜L7的像侧面到光学过滤片GF的物侧面的轴上距离；d14: the on-axis distance from the image side surface of the seventh lens L7 to the object side surface of the optical filter GF;
d15：光学过滤片GF的轴上厚度；d15: the axial thickness of the optical filter GF;
d16：光学过滤片GF的像侧面到像面的轴上距离；d16: the on-axis distance from the image side surface of the optical filter GF to the image surface;
nd：d线的折射率；nd: refractive index of d-line;
nd1：第一透镜L1的d线的折射率；nd1: the refractive index of the d-line of the first lens L1;
nd2：第二透镜L2的d线的折射率；nd2: the refractive index of the d-line of the second lens L2;
nd3：第三透镜L3的d线的折射率；nd3: the refractive index of the d-line of the third lens L3;
nd4：第四透镜L4的d线的折射率；nd4: the refractive index of the d-line of the fourth lens L4;
nd5：第五透镜L5的d线的折射率；nd5: the refractive index of the d-line of the fifth lens L5;
nd6：第六透镜L6的d线的折射率；nd6: the refractive index of the d-line of the sixth lens L6;
nd7：第七透镜L7的d线的折射率；nd7: the refractive index of the d-line of the seventh lens L7;
ndg：光学过滤片GF的d线的折射率；ndg: the refractive index of the d-line of the optical filter GF;
vd：阿贝数；vd: Abbe number;
v1：第一透镜L1的阿贝数；v1: Abbe number of the first lens L1;
v2：第二透镜L2的阿贝数；v2: Abbe number of the second lens L2;
v3：第三透镜L3的阿贝数；v3: Abbe number of the third lens L3;
v4：第四透镜L4的阿贝数；v4: Abbe number of the fourth lens L4;
v5：第五透镜L5的阿贝数；v5: Abbe number of the fifth lens L5;
v6：第六透镜L6的阿贝数；v6: Abbe number of the sixth lens L6;
v7：第七透镜L7的阿贝数；v7: Abbe number of the seventh lens L7;
vg：光学过滤片GF的阿贝数。vg: Abbe number of optical filter GF.
表2示出本申请第一实施方式的摄像光学镜头10中各透镜的非球面数据。Table 2 shows the aspheric surface data of each lens in the imaging optical lens 10 of the first embodiment of the present application.
【表2】【Table 2】
Figure PCTCN2019128561-appb-000003
Figure PCTCN2019128561-appb-000003
其中，k是圆锥系数,A4、A6、A8、A10、A12、A14、A16是非球面系数。Among them, k is the conic coefficient, and A4, A6, A8, A10, A12, A14, A16 are aspherical coefficients.
IH：像高IH: Image height
y＝(x 2/R)/[1+{1-(k+1)(x 2/R 2)} 1/2]+A4x 4+A6x 6+A8x 8+A10x 10+A12x 12+A14x 14+A16x 16    (1) y=(x 2 /R)/[1+{1-(k+1)(x 2 /R 2 )} 1/2 ]+A4x 4 +A6x 6 +A8x 8 +A10x 10 +A12x 12 +A14x 14 +A16x 16 (1)
为方便起见，各个透镜面的非球面使用上述公式(1)中所示的非球面。但是，本申请不限于该公式(1)表示的非球面多项式形式。For convenience, the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1). However, this application is not limited to the aspheric polynomial form represented by the formula (1).
表3、表4示出本申请第一实施方式的摄像光学镜头10中各透镜的反曲点以及驻点设计数据。其中，P1R1、P1R2分别代表第一透镜L1的物侧面和像侧面，P2R1、P2R2分别代表第二透镜L2的物侧面和像侧面，P3R1、P3R2分别代表第三透镜L3的物侧面和像侧面，P4R1、P4R2分别代表第四透镜L4的物侧面和像侧面，P5R1、P5R2分别代表第五透镜L5的物侧面和像侧面，P6R1、P6R2分别代表第六透镜L6的物侧面和像侧面，P7R1、P7R2分别代表第七透镜L7的物侧面和像侧面。“反曲点位置”栏位对应数据为各透镜表面所设置的反曲点到摄像光学镜头10光轴的垂直距离。“驻点位置”栏位对应数据为各透镜表面所设置的驻点到摄像光学镜头10光轴的垂直距离。Table 3 and Table 4 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 10 of the first embodiment of the present application. Among them, P1R1 and P1R2 represent the object side and image side of the first lens L1 respectively, P2R1 and P2R2 represent the object side and image side of the second lens L2 respectively, and P3R1 and P3R2 represent the object side and image side of the third lens L3 respectively. P4R1, P4R2 represent the object side and image side of the fourth lens L4, P5R1, P5R2 represent the object side and image side of the fifth lens L5, P6R1, P6R2 represent the object side and image side of the sixth lens L6, P7R1 P7R2 represents the object side and image side of the seventh lens L7, respectively. The corresponding data in the “reflection point position” column is the vertical distance from the reflex point set on the surface of each lens to the optical axis of the imaging optical lens 10. The data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on the surface of each lens to the optical axis of the imaging optical lens 10.
【表3】【table 3】
 To 反曲点个数Number of recurve points 反曲点位置1 Recurve point position 1 反曲点位置2Recurve point position 2
P1R1 P1R1 11 0.4550.455  To
P1R2 P1R2 00  To  To
P2R1 P2R1 11 0.7350.735  To
P2R2 P2R2 00  To  To
P3R1 P3R1 11 0.5150.515  To
P3R2 P3R2 00  To  To
P4R1 P4R1 00  To  To
P4R2 P4R2 11 0.3250.325  To
P5R1P5R1 22 0.5550.555 1.0551.055
P5R2 P5R2 11 0.3350.335  To
P6R1P6R1 22 0.5450.545 1.4151.415
P6R2P6R2 22 1.4551.455 1.6351.635
P7R1 P7R1 11 0.5050.505  To
P7R2 P7R2 11 0.7050.705  To
【表4】【Table 4】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1
P1R1 P1R1 11 0.8650.865
P1R2 P1R2 00  To
P2R1 P2R1 00  To
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2 P3R2 00  To
P4R1 P4R1 00  To
P4R2 P4R2 11 0.6450.645
P5R1 P5R1 00  To
P5R2 P5R2 11 0.6050.605
P6R1 P6R1 11 0.9050.905
P6R2 P6R2 00  To
P7R1 P7R1 11 0.9250.925
P7R2 P7R2 11 1.5651.565
图2、图3分别示出了波长为470nm、555nm、和650nm的光经过第一实施方式的摄像光学镜头10后的轴向像差以及倍率色差示意图。图4则示出了，波长为555nm的光经过第一实施方式的摄像光学镜头10后的场曲及畸变示意图，图4的场曲S是弧矢方向的场曲，T是子午方向的场曲。2 and 3 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 10 of the first embodiment. FIG. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 555 nm after passing through the imaging optical lens 10 of the first embodiment. The field curvature S in FIG. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridian direction. song.
后出现的表21示出各实例1、2、3、4、5中各种数值与条件式中已规定的参数所对应的值。The following Table 21 shows the values corresponding to various values in each of Examples 1, 2, 3, 4, and 5 and the parameters that have been specified in the conditional expression.
如表21所示，第一实施方式满足各条件式。As shown in Table 21, the first embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为1.011mm，全视场像高为3.248mm，摄像光学镜头的最大视场角为100.49°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the entrance pupil diameter of the imaging optical lens is 1.011mm, the full-field image height is 3.248mm, and the maximum field of view of the imaging optical lens is 100.49°, wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
(第二实施方式)(Second embodiment)
第二实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The second embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表5、表6示出本申请第二实施方式的摄像光学镜头20的设计数据。Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present application.
【表5】【table 5】
Figure PCTCN2019128561-appb-000004
Figure PCTCN2019128561-appb-000004
Figure PCTCN2019128561-appb-000005
Figure PCTCN2019128561-appb-000005
表6示出本申请第二实施方式的摄像光学镜头20中各透镜的非球面数据。Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 of the second embodiment of the present application.
【表6】【Table 6】
Figure PCTCN2019128561-appb-000006
Figure PCTCN2019128561-appb-000006
表7、表8示出本申请第二实施方式的摄像光学镜头20中各透镜的反曲点以及驻点设计数据。Table 7 and Table 8 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 20 of the second embodiment of the present application.
【表7】【Table 7】
 To 反曲点个数Number of recurve points 反曲点位置1 Recurve point position 1 反曲点位置2Recurve point position 2
P1R1 P1R1 11 0.3150.315  To
P1R2P1R2 22 1.1951.195 1.3651.365
P2R1 P2R1 11 0.7350.735  To
P2R2 P2R2 11 0.6250.625  To
P3R1 P3R1 11 0.4150.415  To
P3R2 P3R2 00  To  To
P4R1 P4R1 11 0.4250.425  To
P4R2 P4R2 11 1.0051.005  To
P5R1 P5R1 11 1.1551.155  To
P5R2 P5R2 00  To  To
P6R1 P6R1 11 1.3651.365  To
P6R2P6R2 22 0.6250.625 1.5251.525
P7R1P7R1 22 0.5750.575 1.6551.655
P7R2 P7R2 11 0.7550.755  To
【表8】【Table 8】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1 驻点位置2Stagnation position 2
P1R1 P1R1 11 0.5650.565  To
P1R2 P1R2 00  To  To
P2R1 P2R1 00  To  To
P2R2 P2R2 00  To  To
P3R1 P3R1 11 0.5850.585  To
P3R2 P3R2 00  To  To
P4R1 P4R1 11 0.7950.795  To
P4R2 P4R2 00  To  To
P5R1 P5R1 00  To  To
P5R2 P5R2 00  To  To
P6R1 P6R1 00  To  To
P6R2P6R2 22 0.9050.905 1.7151.715
P7R1 P7R1 11 1.0551.055  To
P7R2 P7R2 11 1.5751.575  To
图6、图7分别示出了波长为470nm、555nm、和650nm的光经过第二实施方式的摄像光学镜头20后的轴向像差以及倍率色差示意图。图8则示出了，波长为555nm的光经过第二实施方式的摄像光学镜头20后的场曲及畸变示意图。6 and 7 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 20 of the second embodiment. FIG. 8 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 20 of the second embodiment.
如表21所示，第二实施方式满足各条件式。As shown in Table 21, the second embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为1.066mm，全视场像高为3.248mm，摄像光学镜头的最大视场角为103.13°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the entrance pupil diameter of the imaging optical lens is 1.066mm, the full-field image height is 3.248mm, and the maximum field of view of the imaging optical lens is 103.13°, wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
(第三实施方式)(Third embodiment)
第三实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The third embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表9、表10示出本申请第三实施方式的摄像光学镜头30的设计数据。Table 9 and Table 10 show the design data of the imaging optical lens 30 of the third embodiment of the present application.
【表9】【Table 9】
Figure PCTCN2019128561-appb-000007
Figure PCTCN2019128561-appb-000007
Figure PCTCN2019128561-appb-000008
Figure PCTCN2019128561-appb-000008
表10示出本申请第三实施方式的摄像光学镜头30中各透镜的非球面数据。Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present application.
【表10】【Table 10】
Figure PCTCN2019128561-appb-000009
Figure PCTCN2019128561-appb-000009
表11、表12示出本申请第三实施方式的摄像光学镜头30中各透镜的反曲点以及驻点设计数据。Table 11 and Table 12 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 30 of the third embodiment of the present application.
【表11】【Table 11】
 To 反曲点个数Number of recurve points 反曲点位置1 Recurve point position 1 反曲点位置2Recurve point position 2
P1R1 P1R1 11 0.3150.315  To
P1R2 P1R2 00  To  To
P2R1 P2R1 11 0.6350.635  To
P2R2 P2R2 00  To  To
P3R1 P3R1 11 0.6950.695  To
P3R2 P3R2 00  To  To
P4R1 P4R1 11 0.1950.195  To
P4R2P4R2 22 0.4050.405 0.9450.945
P5R1 P5R1 11 0.5550.555  To
P5R2 P5R2 11 0.0650.065  To
P6R1 P6R1 00  To  To
P6R2 P6R2 11 1.3151.315  To
P7R1 P7R1 11 1.6751.675  To
P7R2 P7R2 11 0.6550.655  To
【表12】【Table 12】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1
P1R1 P1R1 11 0.5550.555
P1R2 P1R2 00  To
P2R1 P2R1 00  To
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2 P3R2 00  To
P4R1 P4R1 11 0.3450.345
P4R2 P4R2 00  To
P5R1 P5R1 11 0.9650.965
P5R2 P5R2 11 0.1050.105
P6R1 P6R1 00  To
P6R2 P6R2 00  To
P7R1 P7R1 00  To
P7R2 P7R2 11 1.5251.525
图10、图11分别示出了波长为470nm、555nm、和650nm的光经过第三实施方式的摄像光学镜头30后的轴向像差以及倍率色差示意图。图12则示出了，波长为555nm的光经过第三实施方式的摄像光学镜头30后的场曲及畸变示意图。10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 30 of the third embodiment. FIG. 12 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 30 of the third embodiment.
如表21所示，第三实施方式满足各条件式。As shown in Table 21, the third embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为1.116mm，全视场像高为3.248mm，摄像光学镜头的最大视场角为114.03°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征In this embodiment, the entrance pupil diameter of the imaging optical lens is 1.116mm, the full-field image height is 3.248mm, and the maximum field of view of the imaging optical lens is 114.03°, wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics
(第四实施方式)(Fourth embodiment)
第四实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The fourth embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表13、表14示出本申请第四实施方式的摄像光学镜头40的设计数据。Table 13 and Table 14 show design data of the imaging optical lens 40 of the fourth embodiment of the present application.
【表13】【Table 13】
Figure PCTCN2019128561-appb-000010
Figure PCTCN2019128561-appb-000010
表14示出本申请第四实施方式的摄像光学镜头40中各透镜的非球面数据。Table 14 shows the aspheric surface data of each lens in the imaging optical lens 40 of the fourth embodiment of the present application.
【表14】【Table 14】
Figure PCTCN2019128561-appb-000011
Figure PCTCN2019128561-appb-000011
表15、表16示出本申请第四实施方式的摄像光学镜头40中各透镜的反曲点以及驻点设计数据。Table 15 and Table 16 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 40 of the fourth embodiment of the present application.
【表15】【Table 15】
 To 反曲点个数Number of recurve points 反曲点位置1 Recurve point position 1 反曲点位置2Recurve point position 2
P1R1P1R1 22 0.3350.335 1.6951.695
P1R2 P1R2 11 1.1951.195  To
P2R1 P2R1 00  To  To
P2R2 P2R2 00  To  To
P3R1P3R1 22 0.6350.635 0.7150.715
P3R2 P3R2 00  To  To
P4R1 P4R1 11 0.9350.935  To
P4R2 P4R2 11 0.4750.475  To
P5R1P5R1 22 0.2350.235 1.0251.025
P5R2 P5R2 00  To  To
P6R1 P6R1 11 1.5051.505  To
P6R2 P6R2 00  To  To
P7R1 P7R1 00  To  To
P7R2 P7R2 11 0.7950.795  To
【表16】【Table 16】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1 驻点位置2Stagnation position 2
P1R1 P1R1 11 0.5950.595  To
P1R2 P1R2 00  To  To
P2R1 P2R1 00  To  To
P2R2 P2R2 00  To  To
P3R1 P3R1 00  To  To
P3R2 P3R2 00  To  To
P4R1 P4R1 00  To  To
P4R2 P4R2 11 0.9150.915  To
P5R1P5R1 22 0.4650.465 1.1751.175
P5R2 P5R2 00  To  To
P6R1 P6R1 00  To  To
P6R2 P6R2 00  To  To
P7R1 P7R1 00  To  To
P7R2 P7R2 11 1.8251.825  To
图14、图15分别示出了波长为470nm、555nm、和650nm的光经过第四实施方式的摄像光学镜头40后的轴向像差以及倍率色差示意图。图16则示出了，波长为555nm的光经过第四实施方式的摄像光学镜头40后的场曲及畸变示意图。14 and 15 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 40 of the fourth embodiment. FIG. 16 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 40 of the fourth embodiment.
如表21所示，第四实施方式满足各条件式。As shown in Table 21, the fourth embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为1.158mm，全视场像高为3.248mm，摄像光学镜头的最大视场角为103.40°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the entrance pupil diameter of the imaging optical lens is 1.158mm, the full-field image height is 3.248mm, and the maximum field of view of the imaging optical lens is 103.40°, wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
(第五实施方式)(Fifth Embodiment)
第五实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The fifth embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表17、表18示出本申请第五实施方式的摄像光学镜头50的设计数据。Table 17 and Table 18 show the design data of the imaging optical lens 50 of the fifth embodiment of the present application.
【表17】【Table 17】
Figure PCTCN2019128561-appb-000012
Figure PCTCN2019128561-appb-000012
表18示出本申请第五实施方式的摄像光学镜头50中各透镜的非球面数据。Table 18 shows the aspheric surface data of each lens in the imaging optical lens 50 of the fifth embodiment of the present application.
【表18】【Table 18】
Figure PCTCN2019128561-appb-000013
Figure PCTCN2019128561-appb-000013
表19、表20示出本申请第五实施方式的摄像光学镜头50中各透镜的反曲点以及驻点设计数据。Table 19 and Table 20 show the inflection point and stagnation point design data of each lens in the imaging optical lens 50 of the fifth embodiment of the present application.
【表19】【Table 19】
 To 反曲点个数Number of recurve points 反曲点位置1 Recurve point position 1 反曲点位置2Recurve point position 2
P1R1P1R1 22 0.3650.365 1.6251.625
P1R2 P1R2 11 1.1351.135  To
P2R1 P2R1 11 0.4750.475  To
P2R2 P2R2 00  To  To
P3R1 P3R1 00  To  To
P3R2 P3R2 11 0.5750.575  To
P4R1P4R1 22 0.1750.175 0.7150.715
P4R2P4R2 22 0.4350.435 0.6850.685
P5R1 P5R1 11 0.4550.455  To
P5R2 P5R2 11 0.1150.115  To
P6R1 P6R1 11 0.2050.205  To
P6R2 P6R2 11 1.2051.205  To
P7R1 P7R1 11 1.5851.585  To
P7R2 P7R2 11 0.6550.655  To
【表20】【Table 20】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1
P1R1 P1R1 11 0.6550.655
P1R2 P1R2 00  To
P2R1 P2R1 11 0.7050.705
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2 P3R2 00  To
P4R1 P4R1 11 0.2950.295
P4R2 P4R2 00  To
P5R1 P5R1 11 0.7850.785
P5R2 P5R2 11 0.1950.195
P6R1 P6R1 11 0.3450.345
P6R2 P6R2 00  To
P7R1 P7R1 00  To
P7R2 P7R2 11 1.4651.465
图18、图19分别示出了波长为470nm、555nm、和650nm的光经过第五实施方式的摄像光学镜头50后的轴向像差以及倍率色差示意图。图20则示出了，波长为555nm的光经过第五实施方式的摄像光学镜头50后的场曲及畸变示意图。18 and 19 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 470 nm, 555 nm, and 650 nm pass through the imaging optical lens 50 of the fifth embodiment. FIG. 20 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 50 of the fifth embodiment.
如表21所示，第五实施方式满足各条件式。As shown in Table 21, the fifth embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为0.887mm，全视场像高为3.248mm， 摄像光学镜头的最大视场角为134.98°，广角、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the entrance pupil diameter of the imaging optical lens is 0.887mm, the full-field image height is 3.248mm, and the maximum field of view of the imaging optical lens is 134.98°, wide-angle, ultra-thin, and its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
以下表21按照上述条件式列出了本实施方式中对应各条件式的数值。显然，本实施方式的摄像光学系统满足上述的条件式。The following Table 21 lists the numerical values corresponding to each conditional expression in this embodiment according to the above-mentioned conditional expressions. Obviously, the imaging optical system of this embodiment satisfies the above-mentioned conditional expressions.
【表21】【Table 21】
参数及条件式Parameters and conditions 实施例1Example 1 实施例2Example 2 实施例3Example 3 实施例4Example 4 实施例5Example 5
ff 2.8302.830 2.7982.798 2.5672.567 3.0393.039 2.4402.440
f1f1 -4.401-4.401 -5.059-5.059 -4.376-4.376 -4.860-4.860 -4.333-4.333
f2f2 20.46920.469 29.42429.424 120.967120.967 22.22822.228 1699.9991699.999
f3f3 1.9691.969 2.0972.097 2.1902.190 2.3922.392 1.9991.999
f4f4 -2.992-2.992 -4.801-4.801 -12.762-12.762 -9.403-9.403 -11.875-11.875
f5f5 -4.786-4.786 13.92713.927 -7.779-7.779 3.8953.895 -6.945-6.945
f6f6 2.8832.883 -36.703-36.703 2.0112.011 -33.557-33.557 1.9641.964
f7f7 15.34215.342 16.20716.207 -2.307-2.307 -3.081-3.081 -2.260-2.260
f12f12 -5.156-5.156 -5.617-5.617 -4.327-4.327 -6.050-6.050 -4.079-4.079
FNOFNO 2.802.80 2.632.63 2.302.30 2.632.63 2.752.75
FOVFOV 100.49100.49 103.13103.13 114.03114.03 103.40103.40 134.98134.98
R13/R14R13/R14 1.001.00 1.001.00 -9.99-9.99 -7.91-7.91 -6.90-6.90
d2/d4d2/d4 1.511.51 1.511.51 2.562.56 1.501.50 3.993.99
表21中，FNO为摄像光学镜头的光圈F数，f12为第一透镜L1与第二透镜L2的组合焦距。In Table 21, FNO is the aperture F number of the imaging optical lens, and f12 is the combined focal length of the first lens L1 and the second lens L2.
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施方式，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the application, and in actual applications, various changes can be made to them in form and details without departing from the spirit and spirit of the application. range.

Claims (20)

  1. 一种摄像光学镜头，其特征在于，所述摄像光学镜头，自物侧至像侧依序包含：具有负屈折力的第一透镜，具有正屈折力的第二透镜，具有正屈折力的第三透镜，具有负屈折力的第四透镜，第五透镜，第六透镜，以及第七透镜；An imaging optical lens, characterized in that, from the object side to the image side, the imaging optical lens includes a first lens with negative refractive power, a second lens with positive refractive power, and a first lens with positive refractive power. Three lenses, a fourth lens with negative refractive power, a fifth lens, a sixth lens, and a seventh lens;
    所述摄像光学镜头的最大视场角为FOV，所述第七透镜物侧面的曲率半径为R13，所述第七透镜像侧面的曲率半径为R14，第一透镜的像侧面到第二透镜的物侧面的轴上距离为d2，第二透镜的像侧面到第三透镜的物侧面的轴上距离为d4，满足下列关系式：The maximum angle of view of the imaging optical lens is FOV, the radius of curvature of the object side of the seventh lens is R13, the radius of curvature of the image side of the seventh lens is R14, and the image side of the first lens to the second lens The on-axis distance of the object side is d2, and the on-axis distance from the image side of the second lens to the object side of the third lens is d4, which satisfies the following relationship:
    100.00°≤FOV≤135.00°；100.00°≤FOV≤135.00°;
    -10.00≤R13/R14≤1.00；-10.00≤R13/R14≤1.00;
    1.50≤d2/d4≤4.00。1.50≤d2/d4≤4.00.
  2. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第一透镜物侧面于近轴为凹面，其像侧面于近轴为凹面；The imaging optical lens of claim 1, wherein the object side surface of the first lens is concave on the paraxial axis, and the image side surface of the first lens is concave on the paraxial axis;
    所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第一透镜物侧面的曲率半径为R1，所述第一透镜像侧面的曲率半径为R2，以及所述第一透镜的轴上厚度为d1，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The focal length of the imaging optical lens is f, the focal length of the first lens is f1, the radius of curvature of the object side of the first lens is R1, the radius of curvature of the image side of the first lens is R2, and the first lens The axial thickness of a lens is d1, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -3.62≤f1/f≤-1.04；-3.62≤f1/f≤-1.04;
    0.11≤(R1+R2)/(R1-R2)≤1.00；0.11≤(R1+R2)/(R1-R2)≤1.00;
    0.04≤d1/TTL≤0.14。0.04≤d1/TTL≤0.14.
  3. 根据权利要求2所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：4. The imaging optical lens of claim 2, wherein the imaging optical lens satisfies the following relationship:
    -2.26≤f1/f≤-1.30；-2.26≤f1/f≤-1.30;
    0.18≤(R1+R2)/(R1-R2)≤0.80；0.18≤(R1+R2)/(R1-R2)≤0.80;
    0.06≤d1/TTL≤0.11。0.06≤d1/TTL≤0.11.
  4. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第二透镜物侧面于近轴为凸面，其像侧面于近轴为凹面；The imaging optical lens of claim 1, wherein the object side of the second lens is convex on the paraxial axis, and the image side of the second lens is concave on the paraxial axis;
    所述摄像光学镜头的焦距为f，所述第二透镜的焦距为f2，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The focal length of the imaging optical lens is f, the focal length of the second lens is f2, the radius of curvature of the object side of the second lens is R3, the radius of curvature of the image side of the second lens is R4, and the second lens has a radius of curvature of R4. The axial thickness of the lens is d3, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    3.62≤f2/f≤1045.28；3.62≤f2/f≤1045.28;
    -46.06≤(R3+R4)/(R3-R4)≤936.38；-46.06≤(R3+R4)/(R3-R4)≤936.38;
    0.02≤d3/TTL≤0.09。0.02≤d3/TTL≤0.09.
  5. 根据权利要求4所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：4. The imaging optical lens of claim 4, wherein the imaging optical lens satisfies the following relationship:
    5.79≤f2/f≤836.22；5.79≤f2/f≤836.22;
    -28.79≤(R3+R4)/(R3-R4)≤749.10；-28.79≤(R3+R4)/(R3-R4)≤749.10;
    0.03≤d3/TTL≤0.07。0.03≤d3/TTL≤0.07.
  6. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第三透镜物侧面于近轴为凸面，其像侧面于近轴为凸面；The imaging optical lens of claim 1, wherein the object side of the third lens is convex on the paraxial axis, and the image side of the third lens is convex on the paraxial axis;
    所述摄像光学镜头的焦距为f，所述第三透镜的焦距为f3，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The focal length of the imaging optical lens is f, the focal length of the third lens is f3, the radius of curvature of the object side surface of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, and the third lens has a focal length of f3. The axial thickness of the lens is d5, and the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    0.35≤f3/f≤1.28；0.35≤f3/f≤1.28;
    0.12≤(R5+R6)/(R5-R6)≤0.78；0.12≤(R5+R6)/(R5-R6)≤0.78;
    0.04≤d5/TTL≤0.21。0.04≤d5/TTL≤0.21.
  7. 根据权利要求6所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：7. The imaging optical lens of claim 6, wherein the imaging optical lens satisfies the following relationship:
    0.56≤f3/f≤1.02；0.56≤f3/f≤1.02;
    0.20≤(R5+R6)/(R5-R6)≤0.62；0.20≤(R5+R6)/(R5-R6)≤0.62;
    0.06≤d5/TTL≤0.17。0.06≤d5/TTL≤0.17.
  8. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第四透镜的焦距为f4，所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the fourth lens is f4, the radius of curvature of the object side of the fourth lens is R7, and the The curvature radius of the image side surface of the fourth lens is R8, the on-axis thickness of the fourth lens is d7, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -9.94≤f4/f≤-0.70；-9.94≤f4/f≤-0.70;
    -7.00≤(R7+R8)/(R7-R8)≤4.94；-7.00≤(R7+R8)/(R7-R8)≤4.94;
    0.02≤d7/TTL≤0.15。0.02≤d7/TTL≤0.15.
  9. 根据权利要求8所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：8. The imaging optical lens of claim 8, wherein the imaging optical lens satisfies the following relationship:
    -6.21≤f4/f≤-0.88；-6.21≤f4/f≤-0.88;
    -4.37≤(R7+R8)/(R7-R8)≤3.95；-4.37≤(R7+R8)/(R7-R8)≤3.95;
    0.02≤d7/TTL≤0.12。0.02≤d7/TTL≤0.12.
  10. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第五透镜的焦距为f5，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为 R10，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the fifth lens is f5, the radius of curvature of the object side of the fifth lens is R9, and the The curvature radius of the image side surface of the fifth lens is R10, the on-axis thickness of the fifth lens is d9, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -6.06≤f5/f≤7.47；-6.06≤f5/f≤7.47;
    -1.94≤(R9+R10)/(R9-R10)≤1.71；-1.94≤(R9+R10)/(R9-R10)≤1.71;
    0.02≤d9/TTL≤0.15。0.02≤d9/TTL≤0.15.
  11. 根据权利要求10所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：10. The imaging optical lens of claim 10, wherein the imaging optical lens satisfies the following relationship:
    -3.79≤f5/f≤5.97；-3.79≤f5/f≤5.97;
    -1.21≤(R9+R10)/(R9-R10)≤1.37；-1.21≤(R9+R10)/(R9-R10)≤1.37;
    0.04≤d9/TTL≤0.12。0.04≤d9/TTL≤0.12.
  12. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第六透镜的焦距为f6，所述第六透镜物侧面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the radius of curvature of the object side surface of the sixth lens is R11, and the The curvature radius of the image side surface of the sixth lens is R12, the on-axis thickness of the sixth lens is d11, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -26.24≤f6/f≤1.53；-26.24≤f6/f≤1.53;
    -8.12≤(R11+R12)/(R11-R12)≤1.53；-8.12≤(R11+R12)/(R11-R12)≤1.53;
    0.02≤d11/TTL≤0.18。0.02≤d11/TTL≤0.18.
  13. 根据权利要求12所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：The imaging optical lens of claim 12, wherein the imaging optical lens satisfies the following relationship:
    -16.40≤f6/f≤1.22；-16.40≤f6/f≤1.22;
    -5.07≤(R11+R12)/(R11-R12)≤1.22；-5.07≤(R11+R12)/(R11-R12)≤1.22;
    0.03≤d11/TTL≤0.14。0.03≤d11/TTL≤0.14.
  14. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第七透镜的像侧面于近轴为凹面，所述摄像光学镜头的焦距为f，所述第七透镜的焦距为f7，所述第七透镜的轴上厚度为d13，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the image side surface of the seventh lens is concave on the paraxial axis, the focal length of the imaging optical lens is f, and the focal length of the seventh lens is f7, so The axial thickness of the seventh lens is d13, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -2.03≤f7/f≤8.69；-2.03≤f7/f≤8.69;
    -1391.79≤(R13+R14)/(R13-R14)≤1.23；-1391.79≤(R13+R14)/(R13-R14)≤1.23;
    0.05≤d13/TTL≤0.25。0.05≤d13/TTL≤0.25.
  15. 根据权利要求14所述的摄像光学镜头，其特征在于，所述摄像光学镜头满足下列关系式：The imaging optical lens of claim 14, wherein the imaging optical lens satisfies the following relational expression:
    -1.27≤f7/f≤6.95；-1.27≤f7/f≤6.95;
    -869.87≤(R13+R14)/(R13-R14)≤0.98；-869.87≤(R13+R14)/(R13-R14)≤0.98;
    0.08≤d13/TTL≤0.20。0.08≤d13/TTL≤0.20.
  16. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第一透镜与所述第二透镜的组合焦距为f12，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the combined focal length of the first lens and the second lens is f12, and the following relationship is satisfied:
    -4.01≤f12/f≤-1.11。-4.01≤f12/f≤-1.11.
  17. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光学总长TTL小于或等于8.34毫米。The imaging optical lens of claim 1, wherein the total optical length TTL of the imaging optical lens is less than or equal to 8.34 millimeters.
  18. 根据权利要求17所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光学总长TTL小于或等于7.96毫米。The imaging optical lens of claim 17, wherein the total optical length TTL of the imaging optical lens is less than or equal to 7.96 millimeters.
  19. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光圈F数小于或等于2.88。The imaging optical lens of claim 1, wherein the aperture F number of the imaging optical lens is less than or equal to 2.88.
  20. 根据权利要求19所述的摄像光学镜头，其特征在于，所述摄像光学镜头的光圈F数小于或等于2.83。18. The imaging optical lens of claim 19, wherein the aperture F number of the imaging optical lens is less than or equal to 2.83.
PCT/CN2019/128561 2019-12-26 2019-12-26 Photographic optical lens WO2021128120A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1130754A (en) * 1997-07-09 1999-02-02 Hamamatsu Photonics Kk Objective lens
US20120176529A1 (en) * 2009-09-14 2012-07-12 Olympus Corporation Variable power optical system and image pickup apparatus having the same
CN107664813A (en) * 2017-10-19 2018-02-06 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107678133A (en) * 2017-10-19 2018-02-09 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107797242A (en) * 2017-10-30 2018-03-13 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107797233A (en) * 2017-10-19 2018-03-13 瑞声科技(新加坡)有限公司 Camera optical camera lens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1130754A (en) * 1997-07-09 1999-02-02 Hamamatsu Photonics Kk Objective lens
US20120176529A1 (en) * 2009-09-14 2012-07-12 Olympus Corporation Variable power optical system and image pickup apparatus having the same
CN107664813A (en) * 2017-10-19 2018-02-06 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107678133A (en) * 2017-10-19 2018-02-09 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107797233A (en) * 2017-10-19 2018-03-13 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN107797242A (en) * 2017-10-30 2018-03-13 瑞声科技(新加坡)有限公司 Camera optical camera lens

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