WO2021128237A1 - Lentille optique de caméra - Google Patents

Lentille optique de caméra Download PDF

Info

Publication number
WO2021128237A1
WO2021128237A1 PCT/CN2019/129033 CN2019129033W WO2021128237A1 WO 2021128237 A1 WO2021128237 A1 WO 2021128237A1 CN 2019129033 W CN2019129033 W CN 2019129033W WO 2021128237 A1 WO2021128237 A1 WO 2021128237A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
imaging optical
optical lens
ttl
object side
Prior art date
Application number
PCT/CN2019/129033
Other languages
English (en)
Chinese (zh)
Inventor
孙伟
张磊
崔元善
Original Assignee
诚瑞光学(常州)股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 诚瑞光学(常州)股份有限公司 filed Critical 诚瑞光学(常州)股份有限公司
Priority to PCT/CN2019/129033 priority Critical patent/WO2021128237A1/fr
Publication of WO2021128237A1 publication Critical patent/WO2021128237A1/fr

Links

Images

Classifications

    • 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
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Definitions

  • the present 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 coupling devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal).
  • CCD Charge Coupled Device
  • CMOS Sensor complementary metal oxide semiconductor devices
  • the pixel size of photosensitive devices has been reduced, and nowadays electronic products are developed with good functions, thin and short appearance, so they have 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 pixel area of photosensitive devices continues to shrink and the system's requirements for image quality continue to increase, five-element and six-element lens structures have 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.
  • 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 imaging optical lens includes a first lens, a second lens with positive refractive power, and a positive lens, from the object side to the image side.
  • 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 fourth lens is R7
  • the radius of curvature of the image side of the fourth lens is R8, and the first
  • the on-axis distance from the image side of the lens to the object side of the second lens is d2
  • the on-axis thickness of the third lens is d5
  • the on-axis distance is d6
  • the on-axis distance from the image side surface of the fifth lens to the object side surface of the sixth lens is d10
  • the maximum field of view of the imaging optical lens is FOV, and the following relationship is satisfied: 100.00° ⁇ FOV ⁇ 135.00°; 1.00 ⁇ f2/f ⁇ 3.00; 10.00 ⁇ R7/R8 ⁇ 30.00; 1.00 ⁇ d2/d10 ⁇ 10.00; 1.40 ⁇ d5/d6 ⁇ 6.00.
  • the object side of the first lens is concave on the paraxial; the focal length of the first lens is f1, the radius of curvature of the object side of the first lens is R1, and the radius of curvature of the image side 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: -4.10 ⁇ f1/f ⁇ 10.55; -1.02 ⁇ (R1+R2)/( R1-R2) ⁇ 9.38; 0.03 ⁇ d1/TTL ⁇ 0.32.
  • the imaging optical lens satisfies the following relationship: -2.56 ⁇ f1/f ⁇ 8.44; -0.64 ⁇ (R1+R2)/(R1-R2) ⁇ 7.50; 0.05 ⁇ d1/TTL ⁇ 0.26.
  • the object side surface of the second lens is convex on the paraxial axis; 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, and the axis of the second lens is The thickness is d3, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -6.33 ⁇ (R3+R4)/(R3-R4) ⁇ 0.48; 0.03 ⁇ d3/TTL ⁇ 0.27.
  • the imaging optical lens satisfies the following relationship: -3.96 ⁇ (R3+R4)/(R3-R4) ⁇ 0.38; 0.05 ⁇ d3/TTL ⁇ 0.22.
  • the object side surface of the third lens is convex on the paraxial;
  • 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 axial thickness of the third lens is d5
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: 1.45 ⁇ f3/f ⁇ 529.55; -60.60 ⁇ (R5+R6)/(R5 -R6) ⁇ 63.84; 0.02 ⁇ d5/TTL ⁇ 0.15.
  • the imaging optical lens satisfies the following relationship: 2.32 ⁇ f3/f ⁇ 423.64; -37.88 ⁇ (R5+R6)/(R5-R6) ⁇ 51.07; 0.04 ⁇ d5/TTL ⁇ 0.12.
  • the object side of the fourth lens is convex on the paraxial, and the image side is concave on the paraxial;
  • the focal length of the fourth lens is f4
  • the on-axis thickness of the fourth lens is d7
  • the imaging optics The total optical length of the lens is TTL, and it satisfies the following relationship: -4.97 ⁇ f4/f ⁇ -1.25; 0.53 ⁇ (R7+R8)/(R7-R8) ⁇ 1.83; 0.02 ⁇ d7/TTL ⁇ 0.08.
  • the imaging optical lens satisfies the following relationship: -3.10 ⁇ f4/f ⁇ -1.56; 0.86 ⁇ (R7+R8)/(R7-R8) ⁇ 1.46; 0.04 ⁇ d7/TTL ⁇ 0.06.
  • the image side surface of the fifth lens is convex on the paraxial;
  • the focal length of the fifth lens is f5
  • 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 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: 0.28 ⁇ f5/f ⁇ 1.36; 0.19 ⁇ (R9+R10)/(R9- R10) ⁇ 1.88; 0.08 ⁇ d9/TTL ⁇ 0.27.
  • the imaging optical lens satisfies the following relational expression: 0.45 ⁇ f5/f ⁇ 1.09; 0.30 ⁇ (R9+R10)/(R9-R10) ⁇ 1.50; 0.13 ⁇ d9/TTL ⁇ 0.22.
  • 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,
  • the radius of curvature of the six-lens image side 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: -2.60 ⁇ f6/f ⁇ -0.48; 0.90 ⁇ (R11+R12)/(R11-R12) ⁇ 4.19; 0.03 ⁇ d11/TTL ⁇ 0.11.
  • the imaging optical lens satisfies the following relationship: -1.62 ⁇ f6/f ⁇ -0.60; 1.44 ⁇ (R11+R12)/(R11-R12) ⁇ 3.35; 0.04 ⁇ d11/TTL ⁇ 0.09.
  • the total optical length TTL of the imaging optical lens is less than or equal to 6.62 mm.
  • the total optical length TTL of the imaging optical lens is less than or equal to 6.32 mm.
  • the aperture F number of the imaging optical lens is less than or equal to 2.52.
  • the aperture F number of the imaging optical lens is less than or equal to 2.48.
  • the combined focal length of the first lens and the second lens is f12, and the following relationship is satisfied: 0.69 ⁇ f12/f ⁇ 2.93.
  • the imaging optical lens satisfies the following relational expression: 1.10 ⁇ f12/f ⁇ 2.35.
  • the imaging optical lens according to the present invention has excellent optical characteristics, wide-angle and ultra-thin characteristics, 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 invention
  • 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 invention.
  • 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 invention.
  • 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 diagram of the structure of an imaging optical lens according to a fourth embodiment of the present invention.
  • 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 six lenses. Specifically, the imaging optical lens 10 includes in order from the object side to the image side: a first lens L1, an aperture S1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens. Lens L6.
  • An optical element such as an optical filter GF may be provided between the sixth lens L6 and the image plane Si.
  • 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° defines the angle of view of the imaging optical lens 10.
  • FOV maximum angle of view of the imaging optical lens 10.
  • Wide-angle camera improves user experience.
  • the focal length of the imaging optical lens 10 as f
  • the focal length of the second lens L2 as f2
  • the focal length of the second lens L2 satisfying the following relationship: 1.00 ⁇ f2/f ⁇ 3.00, by controlling the positive refractive power of the second lens L2 in a reasonable range , It is helpful to correct the aberration of the optical system.
  • the on-axis thickness of the third lens L3 is defined as d5, and the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4 is d6, which satisfies the following relationship: 1.40 ⁇ d5/d6 ⁇ 6.00, which specifies the ratio of the thickness of the third lens to the air space between the third and fourth lenses. When it is within the range, it is conducive to the development of the lens to a wider angle.
  • the imaging optical lens 10 of the present invention When the focal length of the imaging optical lens 10 of the present invention, the focal length of each lens, the refractive index of the relevant lens, the total optical length of the imaging optical lens, the axial thickness and the radius of curvature satisfy the above-mentioned relational expressions, the imaging optical lens 10 can be made to have a high Performance, and meet the design requirements of low TTL.
  • the object side surface of the first lens L1 is concave at the paraxial position.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the first lens is f1
  • f1 which satisfies the following relationship: -4.10 ⁇ f1/f ⁇ 10.55, which specifies the ratio of the focal length of the first lens L1 to the overall focal length.
  • the first lens has proper 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.
  • -2.56 ⁇ f1/f ⁇ 8.44 is satisfied.
  • the curvature radius of the object side surface of the first lens L1 is R1
  • the curvature radius of the image side surface of the first lens L1 is R2, which satisfies the following relationship: -1.02 ⁇ (R1+R2)/(R1-R2) ⁇ 9.38, reasonable control of the first
  • the shape of the lens L1 enables the first lens L1 to effectively correct the spherical aberration of the system, and preferably satisfies -0.64 ⁇ (R1+R2)/(R1-R2) ⁇ 7.50.
  • the total optical length of the imaging optical lens 10 is TTL, and the on-axis thickness of the first lens L1 is d1, which satisfies the following relationship: 0.03 ⁇ d1/TTL ⁇ 0.32, which is beneficial to realize ultra-thinness.
  • 0.05 ⁇ d1/TTL ⁇ 0.26 is satisfied.
  • the object side surface of the second lens L2 is convex on the paraxial axis and has a positive refractive power.
  • the curvature radius of the object side surface of the second lens L2 is R3, and the curvature radius of the image side surface of the second lens L2 is R4, which satisfies the following relationship: -6.33 ⁇ (R3+R4)/(R3-R4) ⁇ 0.48, which specifies the second
  • the shape of the 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.
  • it satisfies -3.96 ⁇ (R3+R4)/(R3-R4) ⁇ 0.38.
  • the on-axis thickness of the second lens L2 is d3, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.03 ⁇ d3/TTL ⁇ 0.27, which is conducive to achieving ultra-thinness.
  • 0.05 ⁇ d3/TTL ⁇ 0.22 is satisfied.
  • the object side surface of the third lens L3 is convex at the paraxial position and has a positive refractive power.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the third lens L3 is f3, which satisfies the following relationship: 1.45 ⁇ f3/f ⁇ 529.55.
  • the system has better imaging quality and lower image quality.
  • Sensitivity Preferably, 2.32 ⁇ f3/f ⁇ 423.64 is satisfied.
  • 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: -60.60 ⁇ (R5+R6)/(R5-R6) ⁇ 63.84, which can effectively control the first
  • the shape of the three lens L3 is conducive to the molding of the third lens L3.
  • the degree of deflection of the light passing through the lens can be alleviated, and aberrations can be effectively reduced.
  • -37.88 ⁇ (R5+R6)/(R5-R6) ⁇ 51.07 is satisfied.
  • the on-axis thickness of the third lens L3 is d5, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.02 ⁇ d5/TTL ⁇ 0.15, which is beneficial to realize ultra-thinness.
  • 0.04 ⁇ d5/TTL ⁇ 0.12 is satisfied.
  • the object side surface of the fourth lens L4 is convex on the paraxial axis, and the image side surface is concave on the paraxial axis, and has negative refractive power.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the fourth lens L4 is f4 which satisfies the following relationship: -4.97 ⁇ f4/f ⁇ -1.25.
  • the system has better imaging quality and Lower sensitivity.
  • it satisfies -3.10 ⁇ f4/f ⁇ -1.56.
  • the curvature radius of the object side surface of the fourth lens L4 is R7
  • the curvature radius of the image side surface of the fourth lens L4 is R8, which satisfies the following relationship: 0.53 ⁇ (R7+R8)/(R7-R8) ⁇ 1.83, and the fourth lens is specified
  • the shape of the lens L4 is within the range, with the development of ultra-thin and wide-angle, it is helpful to correct the aberration of the off-axis angle of view.
  • 0.86 ⁇ (R7+R8)/(R7-R8) ⁇ 1.46 is satisfied.
  • the axial thickness of the fourth lens L4 is d7, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.02 ⁇ d7/TTL ⁇ 0.08, which is conducive to achieving ultra-thinness.
  • 0.04 ⁇ d7/TTL ⁇ 0.06 is satisfied.
  • the image side surface of the fifth lens L5 is convex on the paraxial axis and has a positive refractive power.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the fifth lens L5 is f5, which satisfies the following relationship: 0.28 ⁇ f5/f ⁇ 1.36.
  • the limitation on the fifth lens L5 can effectively make the light angle of the imaging lens smooth and reduce Tolerance sensitivity.
  • 0.45 ⁇ f5/f ⁇ 1.09 is satisfied.
  • the radius of curvature of the object side surface of the fifth lens L5 is R9
  • the radius of curvature of the image side surface of the fifth lens L5 is R10
  • the following relationship is satisfied: 0.19 ⁇ (R9+R10)/(R9-R10) ⁇ 1.88, which specifies the fifth
  • 0.30 ⁇ (R9+R10)/(R9-R10) ⁇ 1.50 is satisfied.
  • the on-axis thickness of the fifth lens L5 is d9, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.08 ⁇ d9/TTL ⁇ 0.27, which is conducive to achieving ultra-thinness.
  • 0.13 ⁇ d9/TTL ⁇ 0.22 is satisfied.
  • 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, and has negative refractive power.
  • the focal length of the imaging optical lens 10 is f
  • the focal length of the sixth lens L6 is f6, which satisfies the following relationship: -2.60 ⁇ f6/f ⁇ -0.48.
  • the reasonable distribution of the optical power enables the system to have better imaging quality and Lower sensitivity.
  • -1.62 ⁇ f6/f ⁇ -0.60 is satisfied.
  • the curvature radius of the object side surface of the sixth lens L6 is R11, and the curvature radius of the image side surface of the sixth lens L6 is R12, which satisfies the following relationship: 0.90 ⁇ (R11+R12)/(R11-R12) ⁇ 4.19, which is the sixth
  • R11 the curvature radius of the object side surface of the sixth lens L6
  • R12 the curvature radius of the image side surface of the sixth lens L6
  • the on-axis thickness of the sixth lens L6 is d11, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.03 ⁇ d11/TTL ⁇ 0.11, which is beneficial to realize ultra-thinness.
  • 0.04 ⁇ d11/TTL ⁇ 0.09 is satisfied.
  • the total optical length TTL of the imaging optical lens 10 is less than or equal to 6.62 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 6.32 mm.
  • the aperture F number of the imaging optical lens 10 is less than or equal to 2.52. Large aperture, good imaging performance. Preferably, the aperture F number of the imaging optical lens 10 is less than or equal to 2.48.
  • 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: 0.69 ⁇ f12/f ⁇ 2.93, under the condition Within the range of the formula, the aberration and distortion of the imaging optical lens 10 can be eliminated, and the back focal length of the imaging optical lens 10 can be suppressed to maintain the miniaturization of the imaging lens system group.
  • 1.10 ⁇ f12/f ⁇ 2.35 is satisfied.
  • 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 invention 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 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;
  • 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 optical filter GF
  • R14 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 optical filter GF;
  • d14 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;
  • 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 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 the image side of the fifth lens L5
  • P6R1, P6R2 represent the object side and the image side of the sixth lens L6, 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 corresponding data of 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, 3, and 4 and the parameters specified in the conditional expressions.
  • the first embodiment satisfies each conditional expression.
  • the entrance pupil diameter of the imaging optical lens is 0.852mm
  • the full-field image height is 3.28mm
  • the maximum field of view of the imaging optical lens is 134.80°, 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 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.
  • FIG. 6 and 7 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 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 0.993mm
  • the full-field image height is 3.28mm
  • the maximum field of view of the imaging optical lens is 129.00°
  • 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 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.
  • FIG. 10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 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.
  • 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 is 0.852mm
  • the full-field image height is 3.28mm
  • the maximum field of view of the imaging optical lens is 134.80°, 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 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.
  • FIG. 14 and 15 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 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 is 1.415mm
  • the full-field image height is 3.28mm
  • the maximum field of view of the imaging optical lens is 101.00°, 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 FOV 134.80 129.00 134.80 101.00 f2/f 1.21 1.02 1.21 2.97 R7/R8 29.88 10.18 29.88 11.62 d2/d10 9.92 2.54 9.92 1.05 d5/d6 1.55 1.48 1.55 5.79 f 2.087 2.434 2.087 2.788 f1 -4.273 -4.990 -4.273 19.617 f2 2.533 2.485 2.533 8.280 f3 28.390 859.285 28.390 8.068 f4 -5.181 -5.272 -5.181 -5.218 f5 1.892 1.850 1.892 1.554 f6 -2.710 -1.986 -2.710 -2.015 f12 3.583 3.360 3.583 5.455 Fno 2.45 2.45 2.45 1.97
  • Fno is the aperture F number of the imaging optical lens
  • f12 is the combined focal length of the first lens and the second lens.

Landscapes

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

Abstract

L'invention concerne une lentille optique de caméra (10), comprenant séquentiellement, d'un côté objet à un côté image : une première lentille (L1), une deuxième lentille (L2) ayant une réfringence positive, une troisième lentille (L3) ayant une réfringence positive, une quatrième lentille (L4) ayant une puissance de réfraction négative, une cinquième lentille (L5) ayant une puissance de réfraction positive, et une sixième lentille (L6) ayant une puissance de réfraction négative, les expressions relationnelles suivantes étant satisfaites : 100,00° ≤ FOV ≤ 135,00° ; 1,00 ≤ f2/f ≤ 3,00 ; 10,00 ≤ R7/R8 ≤ 30,00 ; 1,00 ≤ d2/d10 ≤ 10,00 ; et 1,40 ≤ d5/d6 ≤ 6,00. La lentille optique de caméra (10) obtient une faible TTL tout en obtenant des performances d'imagerie élevées.
PCT/CN2019/129033 2019-12-27 2019-12-27 Lentille optique de caméra WO2021128237A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/129033 WO2021128237A1 (fr) 2019-12-27 2019-12-27 Lentille optique de caméra

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/129033 WO2021128237A1 (fr) 2019-12-27 2019-12-27 Lentille optique de caméra

Publications (1)

Publication Number Publication Date
WO2021128237A1 true WO2021128237A1 (fr) 2021-07-01

Family

ID=76572961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/129033 WO2021128237A1 (fr) 2019-12-27 2019-12-27 Lentille optique de caméra

Country Status (1)

Country Link
WO (1) WO2021128237A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103529538A (zh) * 2012-07-04 2014-01-22 大立光电股份有限公司 影像系统镜组
US20140247507A1 (en) * 2013-03-03 2014-09-04 Newmax Technology Co., Ltd. Six-piece optical lens system
CN110286474A (zh) * 2019-07-24 2019-09-27 浙江舜宇光学有限公司 光学成像系统
CN110361840A (zh) * 2019-06-30 2019-10-22 瑞声科技(新加坡)有限公司 摄像光学镜头
CN110426819A (zh) * 2019-08-12 2019-11-08 浙江舜宇光学有限公司 光学成像镜头
CN110596864A (zh) * 2019-10-25 2019-12-20 浙江舜宇光学有限公司 光学成像系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103529538A (zh) * 2012-07-04 2014-01-22 大立光电股份有限公司 影像系统镜组
US20140247507A1 (en) * 2013-03-03 2014-09-04 Newmax Technology Co., Ltd. Six-piece optical lens system
CN110361840A (zh) * 2019-06-30 2019-10-22 瑞声科技(新加坡)有限公司 摄像光学镜头
CN110286474A (zh) * 2019-07-24 2019-09-27 浙江舜宇光学有限公司 光学成像系统
CN110426819A (zh) * 2019-08-12 2019-11-08 浙江舜宇光学有限公司 光学成像镜头
CN110596864A (zh) * 2019-10-25 2019-12-20 浙江舜宇光学有限公司 光学成像系统

Similar Documents

Publication Publication Date Title
WO2021196257A1 (fr) Lentille de caméra
WO2021168889A1 (fr) Lentille optique de caméra
WO2021128144A1 (fr) Lentille optique photographique
WO2021128261A1 (fr) Lentille optique de capture d'image
WO2021128137A1 (fr) Lentille optique de caméra
WO2021127827A1 (fr) Lentille optique d'appareil de prise de vues
WO2021128121A1 (fr) Lentille optique de caméra
WO2021119894A1 (fr) Caméra optique de capture d'image
WO2021109078A1 (fr) Lentille optique photographique
WO2021128133A1 (fr) Lentille optique photographique
WO2021127895A1 (fr) Lentille optique d'appareil de prise de vues
WO2021128237A1 (fr) Lentille optique de caméra
WO2021128235A1 (fr) Lentille optique de caméra
WO2021127874A1 (fr) Caméra optique de capture d'image
WO2021128236A1 (fr) Lentille optique d'appareil photo
WO2021128276A1 (fr) Lentille optique de caméra
WO2021128238A1 (fr) Lentille optique de dispositif de prise de vues
WO2021128270A1 (fr) Lentille optique de capture d'image
WO2021127830A1 (fr) Lentille optique d'appareil photo
WO2021128186A1 (fr) Lentille optique de capture d'image
WO2021128267A1 (fr) Lentille optique de capture d'image
WO2021127826A1 (fr) Lentille optique de dispositif de prise de vues
WO2021127891A1 (fr) Caméra optique de capture d'image
WO2021127883A1 (fr) Lentille optique de caméra
WO2021119925A1 (fr) Lentille optique de caméra

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19957117

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19957117

Country of ref document: EP

Kind code of ref document: A1