WO2021128183A1 - Lentille optique d'appareil de prise de vues - Google Patents

Lentille optique d'appareil de prise de vues Download PDF

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Publication number
WO2021128183A1
WO2021128183A1 PCT/CN2019/128772 CN2019128772W WO2021128183A1 WO 2021128183 A1 WO2021128183 A1 WO 2021128183A1 CN 2019128772 W CN2019128772 W CN 2019128772W WO 2021128183 A1 WO2021128183 A1 WO 2021128183A1
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Prior art keywords
lens
imaging optical
optical lens
ttl
curvature
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PCT/CN2019/128772
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English (en)
Chinese (zh)
Inventor
新田耕二
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/CN2019/128772 priority Critical patent/WO2021128183A1/fr
Publication of WO2021128183A1 publication Critical patent/WO2021128183A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Definitions

  • 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 coupling devices (Charge Coupled Device, 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.
  • CCD Charge Coupled Device
  • CMOS Sensor complementary metal oxide semiconductor devices
  • 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 field angle of the imaging optical lens is FOV
  • the focal length of the imaging optical lens is f
  • the focal length of the first lens is f1
  • the focal length of the second lens is f2
  • the focal length of the fifth lens Is f5, which satisfies the following relational expressions: 100.00° ⁇ FOV ⁇ 135.00°, -5.00 ⁇ f1/f ⁇ -2.00, 1.00 ⁇ f2/f ⁇ 5.00, -5.00 ⁇ f5/f ⁇ 5.00.
  • the radius of curvature of the object side surface of the first lens 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 satisfies the following relationship: -10.26 ⁇ (R1+R2)/(R1-R2) ⁇ 2.14, 0.03 ⁇ d1/TTL ⁇ 0.21.
  • the imaging optical lens satisfies the following relationship: -6.41 ⁇ (R1+R2)/(R1-R2) ⁇ 1.72, 0.04 ⁇ d1/TTL ⁇ 0.17.
  • the radius of curvature of the object side surface of the second lens is R3
  • the radius of curvature of the image side surface of the second lens is R4
  • the axial thickness of the second lens is d3
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -8.46 ⁇ (R3+R4)/(R3-R4) ⁇ 2.09, 0.02 ⁇ d3/TTL ⁇ 0.08.
  • the imaging optical lens satisfies the following relationship: -5.29 ⁇ (R3+R4)/(R3-R4) ⁇ 1.67, 0.03 ⁇ d3/TTL ⁇ 0.07.
  • the image side surface of the third lens is convex on the paraxial axis
  • 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,
  • the on-axis thickness of the third lens is d5
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: 0.36 ⁇ f3/f ⁇ 4.10, 0.09 ⁇ (R5+R6)/(R5- R6) ⁇ 2.63, 0.03 ⁇ d5/TTL ⁇ 0.29.
  • the imaging optical lens satisfies the following relational expressions: 0.57 ⁇ f3/f ⁇ 3.28, 0.15 ⁇ (R5+R6)/(R5-R6) ⁇ 2.10, 0.04 ⁇ d5/TTL ⁇ 0.23.
  • 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,
  • the on-axis thickness of the fourth lens is d7
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: -16.32 ⁇ f4/f ⁇ -1.52, -15.11 ⁇ (R7+R8)/(R7-R8) ⁇ 7.29, 0.02 ⁇ d7/TTL ⁇ 0.08.
  • the imaging optical lens satisfies the following relational expressions: -10.20 ⁇ f4/f ⁇ -1.90, -9.45 ⁇ (R7+R8)/(R7-R8) ⁇ 5.83, 0.04 ⁇ d7/TTL ⁇ 0.06.
  • the image side surface of the fifth lens is convex on the paraxial axis
  • the radius of curvature of the object side surface of the fifth lens is R9
  • the radius of curvature of the image side surface of the fifth lens is R10
  • the axis of the fifth lens is The thickness is d9
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: -8.43 ⁇ (R9+R10)/(R9-R10) ⁇ 5.85, 0.03 ⁇ d9/TTL ⁇ 0.23.
  • the imaging optical lens satisfies the following relationship: -5.27 ⁇ (R9+R10)/(R9-R10) ⁇ 4.68, 0.05 ⁇ d9/TTL ⁇ 0.18.
  • the image side surface of the sixth lens is concave on the paraxial axis
  • the focal length of the sixth lens is f6
  • the radius of curvature of the object side surface of the sixth lens is R11
  • the radius of curvature 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 satisfies the following relationship: -5.75 ⁇ f6/f ⁇ 126.03, -471.78 ⁇ (R11+R12)/( R11-R12) ⁇ 1.44, 0.04 ⁇ d11/TTL ⁇ 0.14.
  • the imaging optical lens satisfies the following relational expressions: -3.59 ⁇ f6/f ⁇ 100.83, -294.87 ⁇ (R11+R12)/(R11-R12) ⁇ 1.15, 0.06 ⁇ d11/TTL ⁇ 0.11.
  • the image side surface of the seventh lens is concave on the paraxial axis
  • the focal length of the seventh lens is f7
  • the radius of curvature of the object side surface of the seventh lens is R13
  • the radius of curvature of the image side surface of the seventh lens is R14
  • 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: -2.20 ⁇ f7/f ⁇ 11.01, -9.84 ⁇ (R13+R14)/( R13-R14) ⁇ 0.96, 0.04 ⁇ d13/TTL ⁇ 0.14.
  • the imaging optical lens satisfies the following relational expressions: -1.37 ⁇ f7/f ⁇ 8.81, -6.15 ⁇ (R13+R14)/(R13-R14) ⁇ 0.76, 0.06 ⁇ d13/TTL ⁇ 0.11.
  • the total optical length TTL of the imaging optical lens is less than or equal to 7.92 mm.
  • the total optical length TTL of the imaging optical lens is less than or equal to 7.56 mm.
  • the aperture F number of the imaging optical lens is less than or equal to 2.38.
  • the aperture F number of the imaging optical lens is less than or equal to 2.33.
  • 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. 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 negative refractive power, a second lens L2 with positive refractive power, an aperture S1, and a third lens L3 with positive refractive power. , The fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 with negative refractive power.
  • An optical element such as an optical filter GF may be provided on the image side of the seventh lens L7.
  • the first lens L1 is made of plastic
  • the second lens L2 is made of plastic
  • the third lens L3 is made of plastic
  • the fourth lens L4 is made of plastic
  • the fifth lens L5 is made of plastic
  • the sixth lens L6 is made of plastic
  • the seventh lens is made of plastic.
  • the lens L7 is made of plastic.
  • the maximum field of view of the camera optical lens 10 is defined as FOV, 100.00° ⁇ FOV ⁇ 135.00°, which specifies the maximum field of view of the camera optical lens 10, within this range, ultra-wide-angle photography can be achieved and user experience can be improved.
  • the focal length of the imaging optical lens 10 is defined as f
  • the focal length of the first lens L1 is f1
  • -5.00 ⁇ f1/f ⁇ -2.00 which specifies the negative refractive power of the first lens L1.
  • the focal length of the second lens L2 is defined as f2, 1.00 ⁇ f2/f ⁇ 5.00.
  • the focal length of the fifth lens L5 is defined as f5, -5.00 ⁇ f5/f ⁇ 5.00, which specifies the refractive power of the fifth lens L5.
  • f5 -5.00 ⁇ f5/f ⁇ 5.00
  • the imaging optical lens 10 When the focal length of the imaging optical lens 10, the focal length of each lens, the refractive index of the relevant lens, the total optical length of the imaging optical lens 10, the axial thickness and the radius of curvature of the present application satisfy the above-mentioned relationship, the imaging optical lens 10 can be made to have high performance. , And meet the design requirements of low TTL.
  • 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: -10.26 ⁇ (R1+R2)/(R1-R2) ⁇ 2.14, which is reasonable
  • the shape of the first lens L1 is controlled so that the first lens L1 can effectively correct the spherical aberration of the system.
  • the axial thickness of the first lens L1 is d1
  • the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.03 ⁇ d1/TTL ⁇ 0.21, which is beneficial to realize ultra-thinness.
  • 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: -8.46 ⁇ (R3+R4)/(R3-R4) ⁇ 2.09, which is specified
  • the shape of the second lens L2 is within the range, as the lens becomes ultra-thin and wide-angle, it is beneficial to correct the problem of axial chromatic aberration.
  • the on-axis thickness d3 of the second lens L2 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.02 ⁇ d3/TTL ⁇ 0.08, which is conducive to achieving ultra-thinness.
  • the image side surface of the third lens L3 is convex at the paraxial position.
  • the focal length f of the overall imaging optical lens 10 and the focal length f3 of the third lens L3 satisfy the following relationship: 0.36 ⁇ f3/f ⁇ 4.10. Through the reasonable distribution of optical power, the system has better imaging quality and lower sensitivity. Sex. Preferably, 0.57 ⁇ f3/f ⁇ 3.28.
  • the curvature radius R5 of the object side surface of the third lens L3 and the curvature radius R6 of the image side surface of the third lens L3 satisfy the following relationship: 0.09 ⁇ (R5+R6)/(R5-R6) ⁇ 2.63, which can effectively control the third lens L3
  • the shape of is beneficial 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.
  • the on-axis thickness d5 of the third lens L3 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.03 ⁇ d5/TTL ⁇ 0.29, which is conducive to achieving ultra-thinness.
  • the focal length f of the overall imaging optical lens 10 and the focal length f4 of the fourth lens L4 satisfy the following relationship: -16.32 ⁇ f4/f ⁇ -1.52.
  • the reasonable distribution of the optical power enables the system to have better Image quality and lower sensitivity.
  • 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: -15.11 ⁇ (R7+R8)/(R7-R8) ⁇ 7.29, 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.
  • the on-axis thickness d7 of the fourth lens L4 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.02 ⁇ d7/TTL ⁇ 0.08, which is conducive to achieving ultra-thinness.
  • the image side surface of the fifth lens L5 is convex at the paraxial position.
  • 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: -8.43 ⁇ (R9+R10)/(R9-R10) ⁇ 5.85, 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.
  • the on-axis thickness d9 of the fifth lens L5 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.03 ⁇ d9/TTL ⁇ 0.23, which is conducive to achieving ultra-thinness.
  • 0.05 ⁇ d9/TTL 0.18.
  • the image side surface of the sixth lens L6 is concave at the paraxial position.
  • the focal length f of the overall imaging optical lens 10 and the focal length f6 of the sixth lens L6 satisfy the following relationship: -5.75 ⁇ f6/f ⁇ 126.03.
  • the system has better imaging quality and lower Sensitivity.
  • 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: -471.78 ⁇ (R11+R12)/(R11-R12) ⁇ 1.44, 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.
  • the on-axis thickness d11 of the sixth lens L6 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.04 ⁇ d11/TTL ⁇ 0.14, which is conducive to achieving ultra-thinness.
  • 0.06 ⁇ d11/TTL 0.0.11.
  • the image side surface of the seventh lens L7 is concave at the paraxial position.
  • the focal length f of the overall imaging optical lens 10 and the focal length f7 of the seventh lens L7 satisfy the following relationship: -2.20 ⁇ f7/f ⁇ 11.01. Through the reasonable distribution of optical power, the system has better imaging quality and lower Sensitivity. Preferably, -1.37 ⁇ f7/f ⁇ 8.81.
  • 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: -9.84 ⁇ (R13+R14)/(R13-R14) ⁇ 0.96, which specifies the seventh lens L7
  • -9.84 ⁇ (R13+R14)/(R13-R14) ⁇ 0.96 which specifies the seventh lens L7
  • the axial thickness d13 of the seventh lens L7 and the total optical length TTL of the imaging optical lens 10 satisfy the following relationship: 0.04 ⁇ d13/TTL ⁇ 0.14, which is conducive to achieving ultra-thinness.
  • 0.06 ⁇ d13/TTL 0.01
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 7.92 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 7.56 mm.
  • the aperture F number of the imaging optical lens 10 is less than or equal to 2.38. Large aperture, good imaging performance. Preferably, the aperture F number of the imaging optical lens 10 is less than or equal to 2.33.
  • 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 shows the 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, A18, A20 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 17 shows the values corresponding to the various numerical values in each of Examples 1, 2, and 3 and the parameters specified in the conditional expressions.
  • the first embodiment satisfies each conditional expression.
  • the entrance pupil diameter of the imaging optical lens 10 is 2.085mm
  • the full field of view image height is 3.25mm
  • the maximum field of view is 100.19°
  • wide-angle, ultra-thin, and its on-axis and off-axis color images The difference 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 shows 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 20 is 1.424mm
  • the full field of view image height is 3.25mm
  • the maximum field of view is 120.02°
  • wide-angle, ultra-thin, and its on-axis and off-axis color images The difference 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 shows 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 30 is 0.848mm
  • the full field of view image height is 3.25mm
  • the maximum field of view is 134.68°
  • wide-angle, ultra-thin, and its on-axis and off-axis color images The difference 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 shows 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 0.585 0 0 P2R1 1 0.615 0 0 P2R2 1 0.415 0 0 P3R1 0 0 0 P3R2 0 0 0 P4R1 1 1.075 0 0 P4R2 3 0.235 0.425 1.015 P5R1 3 0.215 0.485 1.065 P5R2 1 1.085 0 0 P6R1 1 0.465 0 0 P6R2 2 0.585 1.885 0 P7R1 1 1.395 0 0 P7R2 2 0.525 2.605 0
  • 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.
  • Table 17 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.
  • the entrance pupil diameter of the imaging optical lens 40 is 2.062mm
  • the full field of view image height is 3.25mm
  • the maximum field of view is 100.22°
  • wide-angle, ultra-thin, and its on-axis and off-axis color images The difference is fully corrected and has excellent optical characteristics.
  • Example 1 Example 2
  • Example 3 Example 4 f 3.737 3.015 1.956 3.701 f1 -18.668 -9.042 -3.916 -14.804 f2 3.775 8.120 9.771
  • 11.101 f3 10.211 3.213 4.349 2.659 f4 -30.506 -6.859 -10.870 -17.520 f5
  • 18.668 2.965 2.258 -18.486 f6 314.032 -8.663 -3.231 61.547 f7 -3.912 -2.780 14.362 -4.068 f12 4.023 28.741 -9.652 31.334
  • f12 is the combined focal length of the first lens and the second lens
  • FNO is the aperture F number of the imaging optical lens.

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

Abstract

La présente invention concerne le domaine des lentilles optiques. L'invention concerne une lentille optique d'appareil de prise de vues (10). La lentille optique d'appareil de prise de vues (10) comprend, dans un ordre allant du côté objet au côté image : une première lentille (L1) ayant une réfringence négative, une deuxième lentille (L2) ayant une réfringence positive, une troisième lentille (L3) ayant une réfringence positive, une quatrième lentille (L4) ayant une réfringence négative, une cinquième lentille (L5), une sixième lentille (L6) et une septième lentille (L7), et satisfait les expressions relationnelles suivantes : 100,00° ≤ FOV ≤ 135,00°, -5,00 ≤ f1/f ≤ -2,00, 1,00 ≤ f2/f ≤ 5,00 et -5,00 ≤ f5/f ≤ 5,00. La lentille optique d'appareil de prise de vues (10) peut atteindre à la fois une performance d'imagerie élevée et une TTL faible.
PCT/CN2019/128772 2019-12-26 2019-12-26 Lentille optique d'appareil de prise de vues WO2021128183A1 (fr)

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CN107664813A (zh) * 2017-10-19 2018-02-06 瑞声科技(新加坡)有限公司 摄像光学镜头
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CN107664819A (zh) * 2017-10-19 2018-02-06 瑞声科技(新加坡)有限公司 摄像光学镜头
CN107664816A (zh) * 2017-10-19 2018-02-06 瑞声科技(新加坡)有限公司 摄像光学镜头
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US11982875B2 (en) 2020-05-29 2024-05-14 Largan Precision Co., Ltd. Image capturing lens assembly, imaging apparatus and electronic device

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