WO2021128138A1 - 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
WO2021128138A1
WO2021128138A1 PCT/CN2019/128592 CN2019128592W WO2021128138A1 WO 2021128138 A1 WO2021128138 A1 WO 2021128138A1 CN 2019128592 W CN2019128592 W CN 2019128592W WO 2021128138 A1 WO2021128138 A1 WO 2021128138A1
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Prior art keywords
lens
imaging optical
optical lens
ttl
curvature
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PCT/CN2019/128592
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English (en)
Chinese (zh)
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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/CN2019/128592 priority Critical patent/WO2021128138A1/fr
Publication of WO2021128138A1 publication Critical patent/WO2021128138A1/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
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components

Definitions

  • the present invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as imaging 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 lenses traditionally mounted on mobile phone cameras often adopt a three-element, four-element, five-element or even six-element lens structure.
  • the seven-element lens structure gradually appears in the lens design.
  • the seven-element lens has good optical performance, its optical power, lens spacing and lens shape settings are still unreasonable, resulting in the lens structure having good optical performance while being unable to meet the requirements of ultra-thinness. , Wide-angle design requirements.
  • the object of the present invention is to provide an imaging optical lens, which has good optical performance and meets the design requirements of ultra-thin and wide-angle.
  • the present invention provides an imaging optical lens which sequentially includes from the object side to the image side: a first lens with negative refractive power, a second lens with positive refractive power, and a first lens with positive refractive power.
  • a first lens with negative refractive power a second lens with positive refractive power
  • a first lens with positive refractive power a third lens with positive refractive power.
  • the focal length of the imaging optical lens is f
  • the radius of curvature of the object side of the third lens is R5
  • the radius of curvature of the image side of the third lens is R6
  • the on-axis thickness of the first lens is d1
  • the The on-axis thickness of the second lens is d3
  • the on-axis thickness of the third lens is d5
  • the on-axis thickness of the fifth lens is d9
  • the maximum field of view of the imaging optical lens is FOV, which satisfies the following relationship formula:
  • the object side surface of the first lens is concave on the paraxial axis
  • the focal length of the first lens is f1
  • 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 total optical length of the camera optical lens is TTL, and satisfies the following relationship:
  • the imaging optical lens satisfies the following relationship:
  • the object side of the second lens is convex on the paraxial;
  • 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
  • the total optical length of the camera optical lens is TTL, which satisfies the following relationship:
  • the imaging optical lens satisfies the following relationship:
  • the object side of the third lens is concave on the paraxial axis, and the image side is convex on the paraxial;
  • the focal length of the third lens is f3
  • the total optical length of the imaging optical lens is TTL, which satisfies the following relationship :
  • the imaging optical lens satisfies the following relationship:
  • the imaging optical lens satisfies the following relationship:
  • 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 total optical length of the imaging optical lens is TTL
  • the imaging optical lens satisfies the following relationship:
  • the object side surface of the sixth lens is convex on the par axis, and the image side surface is concave on the par axis;
  • the focal length of the sixth lens is f6, the radius of curvature of the sixth lens object side is R11, and the The curvature radius of the six-lens image side is R12, the on-axis thickness of the sixth lens is d11, and the total optical length of the imaging optical lens is TTL, which satisfies the following relationship:
  • the imaging optical lens satisfies the following relationship:
  • the image side surface of the seventh lens is concave on the paraxial;
  • 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, which satisfies the following relationship:
  • the total optical length TTL of the imaging optical lens is less than or equal to 8.25 mm.
  • the total optical length TTL of the imaging optical lens is less than or equal to 7.87 mm.
  • the aperture F number of the imaging optical lens is less than or equal to 2.40.
  • the aperture F number of the imaging optical lens is less than or equal to 2.36.
  • FIG. 1 is a schematic diagram of the structure of an imaging optical lens of the first embodiment
  • FIG. 3 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 1;
  • 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. 9 is a schematic diagram of the structure of the imaging optical lens of the third embodiment.
  • 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 diagram of the structure of the imaging optical lens of the fourth embodiment.
  • 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 a first embodiment of the present invention.
  • the imaging optical lens 10 includes eight 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 between the seventh lens L7 and the image plane Si.
  • 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 angle of view of the imaging optical lens 10 is defined as FOV, which satisfies the following relationship: 100.00° ⁇ FOV ⁇ 135.00°.
  • FOV maximum angle of view of the imaging optical lens 10
  • the on-axis thickness of the first lens L1 is d1
  • the on-axis thickness of the second lens L2 is d3
  • the on-axis thickness of the third lens L3 is d5, which satisfies the following relationship: 1.00 ⁇ (d1+d5 )/d3 ⁇ 3.00, which specifies the ratio of the sum of the on-axis thickness of the first lens L1 and the third lens L3 to the on-axis thickness of the second lens L2.
  • the thickness of the first three lenses is reasonably controlled, which is more conducive to the lens Processing, improve product yield and reduce costs.
  • the curvature radius of the object side surface of the third lens L3 is R5, and the curvature radius of the image side surface of the third lens L3 is R6, which satisfies the following relationship: 1.00 ⁇ (R5+R6)/(R5-R6) ⁇ 10.00.
  • Effective control of the shape of the third lens L3 facilitates the molding of the third lens L3.
  • the degree of deflection of the light passing through the lens can be reduced, and aberrations can be effectively reduced.
  • the focal length of the imaging optical lens is f
  • the axial thickness of the fifth lens is d9
  • the following relationship is satisfied: 0.05 ⁇ d9/f ⁇ 0.20, which defines the axial thickness of the fifth lens L5 and the imaging optical lens 10
  • the ratio of the overall focal length, within the range, will help correct system aberrations and improve imaging quality.
  • the focal length of the first lens L1 is f1, which satisfies the following relationship: -0.42 ⁇ f1/f ⁇ -0.83, which specifies the ratio of the negative refractive power of the first lens L1 to the overall focal length.
  • the first lens L1 has an appropriate negative 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.
  • 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: -9.88 ⁇ (R1+R2)/(R1-R2) ⁇ 0.97, reasonable control of the first lens L1
  • the shape of 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 is TTL, which satisfies the following relationship: 0.02 ⁇ d1/TTL ⁇ 0.16, which is conducive to achieving ultra-thinness.
  • the object side surface of the second lens L2 is convex on the paraxial axis.
  • the focal length f2 of the second lens L2 satisfies the following relationship: 0.78 ⁇ f2/f ⁇ 5.21.
  • it is beneficial to correct the aberration of the optical system Preferably, 1.24 ⁇ f2/f ⁇ 4.17.
  • 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: -12.08 ⁇ (R3+R4)/(R3-R4) ⁇ 0.19, which specifies the second lens L2
  • -12.08 ⁇ (R3+R4)/(R3-R4) ⁇ 0.19 which specifies the second lens L2
  • 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: 0.04 ⁇ d3/TTL ⁇ 0.19, which is conducive to achieving ultra-thinness.
  • the object side surface of the third lens L3 is concave on the paraxial axis, and the image side surface of the third lens L3 is convex on the paraxial axis.
  • 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 ⁇ 0.22, which is conducive to achieving ultra-thinness.
  • the focal length f4 of the fourth lens L4 satisfies the following relational expression: -50.00 ⁇ f4/f ⁇ -1.71.
  • the reasonable distribution of optical power enables the system to have better imaging quality and lower sensitivity.
  • the focal length f5 of the fifth lens L5 satisfies the following relationship: -58.92 ⁇ f5/f ⁇ 3.50.
  • the limitation of the fifth lens L5 can effectively make the light angle of the imaging lens smooth and reduce the tolerance sensitivity.
  • 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 ⁇ 0.09, which is conducive to achieving ultra-thinness.
  • 0.02 ⁇ d9/TTL 0.07.
  • the object side surface of the sixth lens L6 is convex on the paraxial axis, and the image side surface is concave on the paraxial axis.
  • 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: -45.48 ⁇ (R11+R12)/(R11-R12) ⁇ 4.93, 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 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 ⁇ 0.19, which is conducive to achieving ultra-thinness.
  • 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: -6.51 ⁇ f7/f ⁇ 9.67.
  • the system has better imaging quality and lower image quality.
  • Sensitivity Preferably, -4.07 ⁇ f7/f ⁇ 7.74.
  • the curvature radius of the image side surface of the seventh lens is R14, and the on-axis thickness of the seventh lens is d13, which satisfies the following relationship: -16.21 ⁇ (R13+R14)/(R13-R14) ⁇ 4.20, which is
  • -16.21 ⁇ (R13+R14)/(R13-R14) ⁇ 4.20 which is
  • the shape of the sixth lens L6 is within the range of conditions, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of the off-axis angle of view.
  • 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 ⁇ 0.21, which is conducive to achieving ultra-thinness.
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 8.25 mm, which is beneficial to realize ultra-thinness.
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 7.87 mm.
  • the aperture F number of the imaging optical lens 10 is less than or equal to 2.40. Large aperture, good imaging performance. Preferably, the aperture F number of the imaging optical lens 10 is less than or equal to 2.36.
  • 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 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 according to the first embodiment of the present invention.
  • 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;
  • 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;
  • 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;
  • R14 the radius of curvature of the image side surface of the seventh lens L7;
  • 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;
  • 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;
  • 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;
  • 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
  • ⁇ d Abbe number
  • ⁇ 1 Abbe number of the first lens L1;
  • ⁇ 2 Abbe number of the second lens L2
  • ⁇ 3 Abbe number of the third lens L3
  • ⁇ 4 Abbe number of the fourth lens L4
  • ⁇ 5 Abbe number of the fifth lens L5;
  • ⁇ 6 Abbe number of the sixth lens L6
  • ⁇ 7 Abbe number of the seventh lens L7;
  • ⁇ g 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 invention.
  • 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).
  • the present invention 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 invention.
  • 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. .
  • Table 17 shows the values corresponding to the various numerical values in each of the first, second, third, and fourth embodiments and the parameters that have been specified in the conditional expressions.
  • the first embodiment satisfies each conditional expression.
  • the entrance pupil diameter of the imaging optical lens 10 is 1.728 mm
  • the full-field image height is 3.248 mm
  • the maximum field angle is 100.12°, which makes the imaging optical lens 10 wide-angle and ultra-thin. , Its on-axis and off-axis chromatic aberrations are fully corrected, and it 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.
  • the structure of the imaging optical lens 20 of the second embodiment is shown in FIG. 5, 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 invention.
  • Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
  • 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 according to the second embodiment of the present invention.
  • P4R2 1 0.105 0 0 0 P5R1 1 0.545 0 0 0 P5R2 1 0.575 0 0 0 P6R1 3 0.625 1.245 1.465 0 P6R2 4 0.415 1.215 1.765 1.905 P7R1 2 0.505 1.425 0 0 P7R2 2 0.715 1.825 0 0
  • 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 of light with a wavelength of 555 nm after passing through the imaging optical lens 20 of the second 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 lens of this embodiment satisfies the above-mentioned conditional expression.
  • the entrance pupil diameter of the imaging optical lens is 0.990 mm
  • the full-field image height is 3.248 mm
  • the maximum field angle is 121.02°, which makes the imaging optical lens 20 wide-angle and ultra-thin.
  • the on-axis and off-axis chromatic aberrations are fully corrected, and it 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. Please refer to FIG. 9 for the structure of the imaging optical lens 30 of the third embodiment. Only the differences are listed below.
  • Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.
  • Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.
  • 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 invention.
  • P4R1 1 0.175 0 0 P4R2 1 0.385 0 0 P5R1 2 0.215 0.645 0 P5R2 0 0 0 0 P6R1 1 0.555 0 0 P6R2 3 0.645 1.105 1.415 P7R1 2 0.525 1.455 0 P7R2 2 0.595 2.405 0
  • 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 of light with a wavelength of 555 nm after passing through the imaging optical lens 30 of the third 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 lens of this embodiment satisfies the above-mentioned conditional expression.
  • the entrance pupil diameter of the imaging optical lens is 0.951mm
  • the full field of view image height is 3.248mm
  • the maximum field of view is 134.77°, which makes the imaging optical lens 30 wide-angle and ultra-thin.
  • the on-axis and off-axis chromatic aberrations are fully corrected, and it 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. Please refer to FIG. 13 for the structure of the imaging optical lens 40 of the fourth embodiment. Only the differences are listed below.
  • Table 13 and Table 14 show design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.
  • Table 14 shows the aspheric surface data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.
  • Table 15 and Table 16 show the inflection point and stagnation point design data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.
  • P2R1 2 0.585 1.115 0 0 0 P2R2 1 0.855 0 0 0 0 P3R1 0 0 0 0 0 P3R2 0 0 0 0 0 P4R1 2 0.865 0.875 0 0 0 P4R2 1 0.845 0 0 0 0 P5R1 5 0.125 0.395 0.555 0.785 1.035 P5R2 3 0.375 0.795 1.135 0 0 P6R1 1 0.375 0 0 0 0 P6R2 3 0.585 1.445 1.695 0 0 P7R1 3 0.415 1.625 2.075 0 0 P7R2 3 0.765 2.445 2.595 0 0 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 of light with a wavelength of 555 nm after passing through the imaging optical lens 40 of the fourth embodiment.
  • the entrance pupil diameter of the imaging optical lens is 1.454 mm
  • the full-field image height is 3.248 mm
  • the maximum field angle is 100.18°, which makes the imaging optical lens 40 wide-angle and ultra-thin.
  • the on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.
  • Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 f 4.000 2.162 2.178 3.395
  • f12 is the combined focal length of the first lens and the second lens.

Abstract

L'invention concerne une lentille optique d'appareil de prise de vues comprenant séquentiellement, d'un côté objet à un 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), les expressions suivantes étant satisfaites : 100,00° ≤ FOV ≤ 135,00° ; 1,00 ≤ (d1 + d5) / d3 ≤ 3,00 ; 1,00 ≤ (R5 + R6) / (R5 - R6) ≤ 10,00 ; 0,05 ≤ d9/f ≤ 0,20. La lentille optique d'appareil de prise de vues a une bonne performance optique et répond aux exigences de conception telles qu'un grand angulaire et une épaisseur ultramince.
PCT/CN2019/128592 2019-12-26 2019-12-26 Lentille optique d'appareil de prise de vues WO2021128138A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023106578A1 (fr) * 2021-12-08 2023-06-15 삼성전자 주식회사 Ensemble lentille et dispositif électronique le comprenant
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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