WO2021119894A1 - Image pickup optical camera - Google Patents

Image pickup optical camera Download PDF

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Publication number
WO2021119894A1
WO2021119894A1 PCT/CN2019/125501 CN2019125501W WO2021119894A1 WO 2021119894 A1 WO2021119894 A1 WO 2021119894A1 CN 2019125501 W CN2019125501 W CN 2019125501W WO 2021119894 A1 WO2021119894 A1 WO 2021119894A1
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Prior art keywords
lens
imaging optical
curvature
focal length
radius
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PCT/CN2019/125501
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French (fr)
Chinese (zh)
Inventor
马力
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诚瑞光学(常州)股份有限公司
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Priority to PCT/CN2019/125501 priority Critical patent/WO2021119894A1/en
Publication of WO2021119894A1 publication Critical patent/WO2021119894A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • 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.
  • today’s electronic products are characterized by the development trend of good functions, light, thin and short appearance. Therefore, it 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 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 camera lenses with excellent optical characteristics, ultra-thin and long focal lengths.
  • the object of the present invention is to provide an imaging optical lens, which has good optical performance while meeting the design requirements of large aperture, ultra-thinness, and long focal length.
  • an embodiment of the present invention provides an imaging optical lens.
  • the imaging optical lens includes, in order from the object side to the image side, a first lens having a positive refractive power, and a second lens having a negative refractive power.
  • Two lenses a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, and a sixth lens with positive refractive power;
  • the radius of curvature of the object side surface of the fourth lens is R7
  • the radius of curvature of the image side surface of the fourth lens is R8,
  • the axial thickness of the first lens is d1
  • the image side surface of the first lens extends to the first lens.
  • the on-axis distance of the object side of the two lenses is d2, and satisfies the following relationship: 5.00 ⁇ (R7+R8)/(R7-R8) ⁇ 20.00; 2.00 ⁇ d1/d2 ⁇ 5.00.
  • 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 following relationship is satisfied: 5.00 ⁇ (R11+R12)/(R11-R12) ⁇ 20.00 .
  • the focal length of the imaging optical lens is f
  • the focal length of the fifth lens is f5
  • the following relationship is satisfied: -1.20 ⁇ f5/f ⁇ -0.50.
  • the focal length of the imaging optical lens is f
  • the focal length of the first lens is f1
  • the radius of curvature of the object side of the first lens is R1
  • the radius of curvature of the image side of the first lens is R2, so
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: 0.21 ⁇ f1/f ⁇ 0.66; -1.85 ⁇ (R1+R2)/(R1-R2) ⁇ -0.56; 0.09 ⁇ d1/TTL ⁇ 0.29.
  • the focal length of the imaging optical lens is f
  • the focal length of the second lens is f2
  • the radius of curvature of the object side of the second lens is R3
  • the radius of curvature of the image side of the second lens is R4, so
  • the axial thickness of the second lens is d3, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -2.09 ⁇ f2/f ⁇ -0.62; -0.39 ⁇ (R3+R4)/(R3- R4) ⁇ 0.86; 0.02 ⁇ d3/TTL ⁇ 0.05.
  • the focal length of the imaging optical lens is f
  • the focal length of the third lens is f3
  • the radius of curvature of the object side of the third lens is R5
  • the radius of curvature of the image side of the third lens is R6, so
  • the axial thickness of the third lens is d5, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -3.43 ⁇ f3/f ⁇ -0.49; -1.33 ⁇ (R5+R6)/(R5- R6) ⁇ -0.01; 0.02 ⁇ d5/TTL ⁇ 0.07.
  • the focal length of the imaging optical lens is f
  • the focal length of the fourth lens is f4
  • the axial thickness of the fourth lens is d7
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied Formula: 2.03 ⁇ f4/f ⁇ 29.88; 0.02 ⁇ d7/TTL ⁇ 0.05.
  • 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 axial thickness of the fifth lens is d9
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -5.83 ⁇ (R9+R10)/(R9-R10) ⁇ -0.80; 0.02 ⁇ d9/TTL ⁇ 0.05.
  • the focal length of the imaging optical lens is f
  • the focal length of the sixth lens is f6
  • the axial thickness of the sixth lens is d11
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied Formula: 1.12 ⁇ f6/f ⁇ 7.66; 0.06 ⁇ d11/TTL ⁇ 0.20.
  • the focal length of the imaging optical lens is f
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: f/TTL ⁇ 1.24.
  • the imaging optical lens according to the present invention has excellent optical characteristics, and has the characteristics of large aperture, long focal length, and ultra-thin. It is especially suitable for high-pixel CCD, CMOS and other imaging elements. Mobile phone camera lens assembly 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. 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: an aperture S1, a first lens L1, 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 first lens L1 has positive refractive power
  • the second lens L2 has negative refractive power
  • the third lens L3 has negative refractive power
  • the fourth lens L4 has positive refractive power
  • the fifth lens L5 has negative refractive power
  • the sixth lens L6 has Positive refractive power.
  • the radius of curvature of the object side surface of the fourth lens L4 is defined as R7
  • the radius of curvature of the image side surface of the fourth lens L4 is defined as R8, which satisfies the following relationship: 5.00 ⁇ (R7+R8)/(R7 -R8) ⁇ 20.00, which specifies the shape of the fourth lens.
  • R7 the radius of curvature of the object side surface of the fourth lens L4
  • R8 the radius of curvature of the image side surface of the fourth lens L4
  • R8 which satisfies the following relationship: 5.00 ⁇ (R7+R8)/(R7 -R8) ⁇ 20.00, which specifies the shape of the fourth lens.
  • the degree of deflection of light passing through the lens can be eased and aberrations can be effectively reduced.
  • 5.01 ⁇ (R7+R8)/(R7-R8) ⁇ 19.97 is satisfied.
  • the on-axis thickness of the first lens L1 is defined as d1, and the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2 is d2, which satisfies the following relationship: 2.00 ⁇ d1/d2 ⁇ 5.00, which specifies the ratio of the thickness of the first lens to the air gap between the first lens and the second lens, which helps to compress the total length of the optical system within the range of the conditional expression and achieves an ultra-thin effect.
  • 2.01 ⁇ d1/d2 ⁇ 4.97 is satisfied.
  • the radius of curvature of the object side surface of the sixth lens L6 as R11
  • the radius of curvature of the image side surface of the sixth lens L6 as R12
  • the shape of the sixth lens is specified, and when it is within this range, it is helpful to correct the aberration of the off-axis angle of view.
  • 5.02 ⁇ (R11+R12)/(R11-R12) ⁇ 19.99 is satisfied.
  • the focal length of the imaging optical lens 10 is defined as f, and the focal length of the fifth lens L5 is f5, which satisfies the following relationship: -1.20 ⁇ f5/f ⁇ -0.50, which specifies the ratio of the focal length of the fifth lens to the total focal length,
  • -1.19 ⁇ f5/f ⁇ -0.53 is satisfied.
  • the focal length of the imaging optical lens 10 is defined as f, and the focal length of the first lens is f1, which satisfies the following relationship: 0.21 ⁇ f1/f ⁇ 0.66, which specifies the ratio of the positive refractive power of the first lens L1 to the overall focal length .
  • the first lens has an appropriate positive refractive power, which is beneficial to reduce system aberrations.
  • 0.33 ⁇ f1/f ⁇ 0.52 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: -1.85 ⁇ (R1+R2)/(R1-R2) ⁇ -0.56 ,
  • -1.16 ⁇ (R1+R2)/(R1-R2) ⁇ -0.70 is satisfied.
  • 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: 0.09 ⁇ d1/TTL ⁇ 0.29, which is beneficial to achieve ultra-thinness. Preferably, 0.15 ⁇ d1/TTL ⁇ 0.23 is satisfied.
  • the focal length of the second lens L2 is defined as f2, which satisfies the following relationship: -2.09 ⁇ f2/f ⁇ -0.62.
  • f2 The focal length of the second lens L2 is defined as f2, which satisfies the following relationship: -2.09 ⁇ f2/f ⁇ -0.62.
  • 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: -0.39 ⁇ (R3+R4)/(R3-R4) ⁇ 0.86,
  • the shape of the second lens L2 is specified, and when it is within the range, it is beneficial to correct the problem of axial chromatic aberration.
  • -0.25 ⁇ (R3+R4)/(R3-R4) ⁇ 0.68 is satisfied.
  • 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: 0.02 ⁇ d3/TTL ⁇ 0.05, which is beneficial to realize ultra-thinness.
  • 0.03 ⁇ d3/TTL ⁇ 0.04 is satisfied.
  • the focal length of the imaging optical lens 10 as f
  • the focal length of the third lens L3 as f3
  • the system has a relatively high Good imaging quality and low sensitivity.
  • it satisfies -2.14 ⁇ f3/f ⁇ -0.61.
  • 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: -1.33 ⁇ (R5+R6)/(R5-R6) ⁇ -0.01, which is specified
  • the shape of the third lens is within the range specified by the conditional formula, which can alleviate the degree of deflection of light passing through the lens and effectively reduce aberrations.
  • -0.83 ⁇ (R5+R6)/(R5-R6) ⁇ -0.01 is satisfied.
  • the on-axis thickness of the third lens L3 is d5, which satisfies the following relationship: 0.02 ⁇ d5/TTL ⁇ 0.07, which is beneficial to realize ultra-thinness.
  • 0.03 ⁇ d5/TTL ⁇ 0.06 is satisfied.
  • the focal length of the imaging optical lens 10 is defined as f, and the focal length of the fourth lens is f4, which satisfies the following relationship: 2.03 ⁇ f4/f ⁇ 29.88, which specifies the ratio of the focal length of the fourth lens to the focal length of the system, in the conditional formula
  • the range helps to improve the performance of the optical system, and preferably satisfies 3.24 ⁇ f4/f ⁇ 23.90.
  • 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 ⁇ 0.05, which is beneficial to realize ultra-thinness.
  • 0.02 ⁇ d7/TTL ⁇ 0.04 is satisfied.
  • the radius of curvature of the object side surface of the fifth lens L5 is defined as R9, and the radius of curvature of the image side surface of the fifth lens L5 is R10, and the following relationship is satisfied: -5.83 ⁇ (R9+R10)/(R9-R10) ⁇ -0.80, which specifies the shape of the fifth lens L5.
  • 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
  • -5.83 ⁇ (R9+R10)/(R9-R10) ⁇ -0.80 which specifies the shape of the fifth lens L5.
  • it is helpful to correct the aberrations of the off-axis angle of view.
  • it satisfies -3.65 ⁇ (R9+R10)/(R9-R10) ⁇ -1.00.
  • the axial 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: 0.02 ⁇ d9/TTL ⁇ 0.05, which is beneficial to realize ultra-thinness.
  • 0.02 ⁇ d9/TTL ⁇ 0.04 is satisfied.
  • the focal length of the imaging optical lens 10 as f
  • the focal length of the sixth lens L6 as f6, which satisfies the following relationship: 1.12 ⁇ f6/f ⁇ 7.66.
  • the system has better Image quality and lower sensitivity.
  • 1.80 ⁇ f6/f ⁇ 6.13 is satisfied.
  • the on-axis thickness of the sixth lens L6 is d11, which satisfies the following relationship: 0.06 ⁇ d11/TTL ⁇ 0.20, which is beneficial to realize ultra-thinness.
  • 0.10 ⁇ d11/TTL ⁇ 0.16 is satisfied.
  • the focal length of the imaging optical lens 10 is defined as f, and the following relationship is satisfied: f/TTL ⁇ 1.24, thereby achieving ultra-thinness.
  • the imaging optical lens 10 can meet the design requirements of large aperture, long focal length, and ultra-thinness while having good optical performance. According to the characteristics of the optical lens 10, the optical lens 10 is particularly suitable for high-end cameras. Mobile phone camera lens assembly and WEB camera lens composed of CCD, CMOS and other imaging elements for pixels.
  • 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 according to 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 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. 2 and 3 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, 470 nm, and 430 nm pass through the imaging optical lens 10 of the first embodiment.
  • Fig. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 555 nm after passing through the imaging optical lens 10 of the first embodiment.
  • the field curvature S in Fig. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction. song.
  • Table 13 shows the values corresponding to the various values in each of Examples 1, 2, and 3 and the parameters that have been specified in the conditional expressions.
  • the first embodiment satisfies various conditional expressions.
  • the imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.84°, a long focal length, ultra-thin, and its axis,
  • the off-axis 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, 470 nm, and 430 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 imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.84°, a long focal length, ultra-thin, and its axis,
  • the off-axis 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 inflection point and stagnation point design data 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, 470 nm, and 430 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 imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.80°, a long focal length, ultra-thin, and its axis,
  • the off-axis chromatic aberration is fully corrected and has excellent optical characteristics.
  • Example 1 Example 2
  • Example 3 (R7+R8)/(R7-R8) 5.02 19.94 15.49 d1/d2 2.02 4.94 2.54 f 7.366 7.366 7.366 f1 3.218 3.024 3.108 f2 -7.691 -6.867 -6.864 f3 -5.432 -12.616 -10.067 f4 29.846 146.718 54.324 f5 -8.690 -4.181 -5.123 f6 37.605 16.529 23.200 f12 4.258 4.271 4.278 Fno 2.450 2.450 2.450
  • Fno is the aperture F number of the imaging optical lens.

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Abstract

An image pickup optical camera (10), sequentially comprising, from an object side to an image side: a first lens (L1) having positive refractive power, a second lens (L2) having negative refractive power, a third lens (L3) having negative refractive power, a fourth lens (L4) having positive refractive power, a fifth lens (L5) having negative refractive power, and a sixth lens (L6) having positive refractive power. The radius of curvature of the object side surface of the fourth lens (L4) is R7, the radius of curvature of the image side surface of the fourth lens (L4) is R8, the axial thickness of the first lens (L1) is d1, an axial distance between the image side surface of the first lens (L1) and the object side surface of the second lens (L2) is d2, and the following relational expressions are satisfied: 5.00≤(R7+R8)/(R7-R8)≤20.00, and 2.00≤d1/d2≤5.00. The image pickup optical camera (10) has good optical performance, and satisfies the design requirements of a large aperture, a long focal length, and ultra-thinness.

Description

摄像光学镜头Camera optical lens 技术领域Technical field
本发明涉及光学镜头领域，特别涉及一种适用于智能手机、数码相机等手提终端设备，以及监视器、PC镜头等摄像装置的摄像光学镜头。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.
背景技术Background technique
近年来，随着智能手机的兴起，小型化摄影镜头的需求日渐提高，而一般摄影镜头的感光器件不外乎是感光耦合器件(Charge Coupled Device,CCD)或互补性氧化金属半导体器件(Complementary Metal-Oxide Semiconductor Sensor,CMOS Sensor)两种，且由于半导体制造工艺技术的精进，使得感光器件的像素尺寸缩小，再加上现今电子产品以功能佳且轻薄短小的外型为发展趋势，因此，具备良好成像品质的小型化摄像镜头俨然成为目前市场上的主流。In recent years, with the rise of smartphones, the demand for miniaturized photographic lenses has increased. The photosensitive devices of general photographic lenses are nothing more than photosensitive coupling devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal). -Oxide Semiconductor Sensor, CMOS Sensor), and due to the advancement of semiconductor manufacturing technology, the pixel size of photosensitive devices has been reduced. In addition, today’s electronic products are characterized by the development trend of good functions, light, thin and short appearance. Therefore, it has The miniaturized camera lens with good image quality has become the mainstream in the current market.
为获得较佳的成像品质，传统搭载于手机相机的镜头多采用三片式或四片式透镜结构。并且，随着技术的发展以及用户多样化需求的增多，在感光器件的像素面积不断缩小，且***对成像品质的要求不断提高的情况下，五片式、六片式透镜结构逐渐出现在镜头设计当中。迫切需求具有优秀的光学特征、超薄且长焦距的摄像镜头。In order to obtain better imaging quality, the lenses traditionally mounted on mobile phone cameras mostly adopt a three-element or four-element lens structure. Moreover, with the development of technology and the increase in diversified needs of users, as 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. Under design. There is an urgent need for camera lenses with excellent optical characteristics, ultra-thin and long focal lengths.
发明内容Summary of the invention
针对上述问题，本发明的目的在于提供一种摄像光学镜头，其具有良好光学性能的同时，满足大光圈、超薄化、长焦距的设计要求。In view of the above-mentioned problems, the object of the present invention is to provide an imaging optical lens, which has good optical performance while meeting the design requirements of large aperture, ultra-thinness, and long focal length.
为解决上述技术问题，本发明的实施方式提供了一种摄像光学镜头，所述摄像光学镜头，自物侧至像侧依序包含：具有正屈折力的第一透镜，具有负屈折力的第二透镜，具有负屈折力的第三透镜，具有正屈折力的第四透镜，具有负屈折力的第五透镜，具有正屈折力的第六透镜；In order to solve the above technical problems, an embodiment of the present invention provides an imaging optical lens. The imaging optical lens includes, in order from the object side to the image side, a first lens having a positive refractive power, and a second lens having a negative refractive power. Two lenses, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, and a sixth lens with positive refractive power;
所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，所述第一透镜的轴上厚度为d1，所述第一透镜的像侧面 到所述第二透镜的物侧面的轴上距离为d2，且满足下列关系式：5.00≤(R7+R8)/(R7-R8)≤20.00；2.00≤d1/d2≤5.00。The radius of curvature of the object side surface of the fourth lens is R7, the radius of curvature of the image side surface of the fourth lens is R8, the axial thickness of the first lens is d1, and the image side surface of the first lens extends to the first lens. The on-axis distance of the object side of the two lenses is d2, and satisfies the following relationship: 5.00≤(R7+R8)/(R7-R8)≤20.00; 2.00≤d1/d2≤5.00.
优选地，所述第六透镜物侧面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，且满足下列关系式：5.00≤(R11+R12)/(R11-R12)≤20.00。Preferably, the radius of curvature of the object side surface of the sixth lens is R11, and the radius of curvature of the image side surface of the sixth lens is R12, and the following relationship is satisfied: 5.00≤(R11+R12)/(R11-R12)≤20.00 .
优选地，所述摄像光学镜头的焦距为f，所述第五透镜的焦距为f5，且满足下列关系式：-1.20≤f5/f≤-0.50。Preferably, the focal length of the imaging optical lens is f, the focal length of the fifth lens is f5, and the following relationship is satisfied: -1.20≤f5/f≤-0.50.
优选地，所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第一透镜物侧面的曲率半径为R1，所述第一透镜像侧面的曲率半径为R2，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：0.21≤f1/f≤0.66；-1.85≤(R1+R2)/(R1-R2)≤-0.56；0.09≤d1/TTL≤0.29。Preferably, the focal length of the imaging optical lens is f, the focal length of the first lens is f1, the radius of curvature of the object side of the first lens is R1, and the radius of curvature of the image side of the first lens is R2, so The total optical length of the camera optical lens is TTL, and satisfies the following relationship: 0.21≤f1/f≤0.66; -1.85≤(R1+R2)/(R1-R2)≤-0.56; 0.09≤d1/TTL≤0.29.
优选地，所述摄像光学镜头的焦距为f，所述第二透镜的焦距为f2，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-2.09≤f2/f≤-0.62；-0.39≤(R3+R4)/(R3-R4)≤0.86；0.02≤d3/TTL≤0.05。Preferably, the focal length of the imaging optical lens is f, the focal length of the second lens is f2, the radius of curvature of the object side of the second lens is R3, and the radius of curvature of the image side of the second lens is R4, so The axial thickness of the second lens is d3, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -2.09≤f2/f≤-0.62; -0.39≤(R3+R4)/(R3- R4)≤0.86; 0.02≤d3/TTL≤0.05.
优选地，所述摄像光学镜头的焦距为f，所述第三透镜的焦距为f3，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-3.43≤f3/f≤-0.49；-1.33≤(R5+R6)/(R5-R6)≤-0.01；0.02≤d5/TTL≤0.07。Preferably, the focal length of the imaging optical lens is f, the focal length of the third lens is f3, the radius of curvature of the object side of the third lens is R5, and the radius of curvature of the image side of the third lens is R6, so The axial thickness of the third lens is d5, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -3.43≤f3/f≤-0.49; -1.33≤(R5+R6)/(R5- R6)≤-0.01; 0.02≤d5/TTL≤0.07.
优选地，所述摄像光学镜头的焦距为f，所述第四透镜的焦距为f4，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：2.03≤f4/f≤29.88；0.02≤d7/TTL≤0.05。Preferably, the focal length of the imaging optical lens is f, the focal length of the fourth lens is f4, the axial thickness of the fourth lens is d7, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied Formula: 2.03≤f4/f≤29.88; 0.02≤d7/TTL≤0.05.
优选地，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为R10，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：-5.83≤(R9+R10)/(R9-R10)≤-0.80；0.02≤d9/TTL≤0.05。Preferably, 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 axial thickness of the fifth lens is d9, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -5.83≤(R9+R10)/(R9-R10)≤-0.80; 0.02≤d9/TTL≤0.05.
优选地，所述摄像光学镜头的焦距为f，所述第六透镜的焦距为f6，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：1.12≤f6/f≤7.66；0.06≤d11/TTL≤0.20。Preferably, the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the axial thickness of the sixth lens is d11, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied Formula: 1.12≤f6/f≤7.66; 0.06≤d11/TTL≤0.20.
优选地，摄像光学镜头的焦距为f，所述摄像光学镜头的光学总长 为TTL，且满足下列关系式：f/TTL≥1.24。Preferably, the focal length of the imaging optical lens is f, and the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: f/TTL≥1.24.
本发明的有益效果在于：根据本发明的摄像光学镜头具有优秀的光学特性，且具有大光圈、长焦距、超薄化的特性，尤其适用于由高像素用的CCD、CMOS等摄像元件构成的手机摄像镜头组件和WEB摄像镜头。The beneficial effects of the present invention are: the imaging optical lens according to the present invention has excellent optical characteristics, and has the characteristics of large aperture, long focal length, and ultra-thin. It is especially suitable for high-pixel CCD, CMOS and other imaging elements. Mobile phone camera lens assembly and WEB camera lens.
附图说明Description of the drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:
图1是本发明第一实施方式的摄像光学镜头的结构示意图；FIG. 1 is a schematic diagram of the structure of an imaging optical lens according to a first embodiment of the present invention;
图2是图1所示摄像光学镜头的轴向像差示意图；FIG. 2 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 1;
图3是图1所示摄像光学镜头的倍率色差示意图；3 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 1;
图4是图1所示摄像光学镜头的场曲及畸变示意图；4 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 1;
图5是本发明第二实施方式的摄像光学镜头的结构示意图；5 is a schematic diagram of the structure of an imaging optical lens according to a second embodiment of the present invention;
图6是图5所示摄像光学镜头的轴向像差示意图；FIG. 6 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 5;
图7是图5所示摄像光学镜头的倍率色差示意图；FIG. 7 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 5;
图8是图5所示摄像光学镜头的场曲及畸变示意图；FIG. 8 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 5;
图9是本发明第三实施方式的摄像光学镜头的结构示意图；9 is a schematic diagram of the structure of an imaging optical lens according to a third embodiment of the present invention;
图10是图9所示摄像光学镜头的轴向像差示意图；10 is a schematic diagram of axial aberration of the imaging optical lens shown in FIG. 9;
图11是图9所示摄像光学镜头的倍率色差示意图；11 is a schematic diagram of the chromatic aberration of magnification of the imaging optical lens shown in FIG. 9;
图12是图9所示摄像光学镜头的场曲及畸变示意图。FIG. 12 is a schematic diagram of field curvature and distortion of the imaging optical lens shown in FIG. 9.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明的各实施方式进行详细的阐述。然而，本领域的普通技术人 员可以理解，在本发明各实施方式中，为了使读者更好地理解本发明而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本发明所要求保护的技术方案。In order to make the objectives, technical solutions and advantages of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, a person of ordinary skill in the art can understand that, in each embodiment of the present invention, many technical details are proposed for the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed by the present invention can be realized.
(第一实施方式)(First embodiment)
参考附图，本发明提供了一种摄像光学镜头10。图1所示为本发明第一实施方式的摄像光学镜头10，该摄像光学镜头10包括六个透镜。具体的，所述摄像光学镜头10，由物侧至像侧依序包括：光圈S1、第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6。第六透镜L6和像面Si之间可设置有光学过滤片(filter)GF等光学元件。With reference to the drawings, the present invention provides an imaging optical lens 10. 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: an aperture S1, a first lens L1, 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.
第一透镜L1具有正屈折力，第二透镜L2具有负屈折力，第三透镜L3具有负屈折力，第四透镜L4具有正屈折力，第五透镜L5具有负屈折力，第六透镜L6具有正屈折力。The first lens L1 has positive refractive power, the second lens L2 has negative refractive power, the third lens L3 has negative refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has Positive refractive power.
在本实施方式中，定义所述第四透镜L4物侧面的曲率半径为R7，所述第四透镜L4像侧面的曲率半径为R8，满足下列关系式：5.00≤(R7+R8)/(R7-R8)≤20.00，规定了第四透镜的形状，在条件式规定范围内，可以缓和光线经过镜片的偏折程度，有效减小像差。优选地，满足5.01≤(R7+R8)/(R7-R8)≤19.97。In this embodiment, the radius of curvature of the object side surface of the fourth lens L4 is defined as R7, and the radius of curvature of the image side surface of the fourth lens L4 is defined as R8, which satisfies the following relationship: 5.00≤(R7+R8)/(R7 -R8)≤20.00, which specifies the shape of the fourth lens. Within the range specified by the conditional formula, the degree of deflection of light passing through the lens can be eased and aberrations can be effectively reduced. Preferably, 5.01≤(R7+R8)/(R7-R8)≤19.97 is satisfied.
定义所述第一透镜L1的轴上厚度为d1，所述第一透镜L1的像侧面到所述第二透镜L2的物侧面的轴上距离为d2，满足下列关系式：2.00≤d1/d2≤5.00，规定了第一透镜厚度与第一第二透镜间空气间隔的比值，在条件式范围内有助于压缩光学***总长，实现超薄化效果。优选地，满足2.01≤d1/d2≤4.97。The on-axis thickness of the first lens L1 is defined as d1, and the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2 is d2, which satisfies the following relationship: 2.00≤d1/d2 ≤5.00, which specifies the ratio of the thickness of the first lens to the air gap between the first lens and the second lens, which helps to compress the total length of the optical system within the range of the conditional expression and achieves an ultra-thin effect. Preferably, 2.01≤d1/d2≤4.97 is satisfied.
定义所述第六透镜L6物侧面的曲率半径为R11，所述第六透镜L6像侧面的曲率半径为R12，满足下列关系式：5.00≤(R11+R12)/(R11-R12)≤20.00，规定了第六透镜的形状，在此条件范围内时，有利于补正轴外画角的像差。优选地，满足5.02≤(R11+R12)/(R11-R12)≤19.99。Define the radius of curvature of the object side surface of the sixth lens L6 as R11, and the radius of curvature of the image side surface of the sixth lens L6 as R12, satisfying the following relationship: 5.00≤(R11+R12)/(R11-R12)≤20.00, The shape of the sixth lens is specified, and when it is within this range, it is helpful to correct the aberration of the off-axis angle of view. Preferably, 5.02≤(R11+R12)/(R11-R12)≤19.99 is satisfied.
定义所述摄像光学镜头10的焦距为f，所述第五透镜L5的焦距为f5，满足下列关系式：-1.20≤f5/f≤-0.50，规定了第五透镜焦距与总焦距的比值，通过光焦度的合理分配，使得***具有较佳的成像品质和较低的敏感性。优选地，满足-1.19≤f5/f≤-0.53。The focal length of the imaging optical lens 10 is defined as f, and the focal length of the fifth lens L5 is f5, which satisfies the following relationship: -1.20≤f5/f≤-0.50, which specifies the ratio of the focal length of the fifth lens to the total focal length, Through the reasonable distribution of optical power, the system has better imaging quality and lower sensitivity. Preferably, -1.19≤f5/f≤-0.53 is satisfied.
定义所述摄像光学镜头10的焦距为f，所述第一透镜的焦距为f1，满足下列关系式：0.21≤f1/f≤0.66，规定了第一透镜L1的正屈折力与整体焦距的比值。在规定的范围内时，第一透镜具有适当的正屈折力，有利于减小***像差。优选地，满足0.33≤f1/f≤0.52。The focal length of the imaging optical lens 10 is defined as f, and the focal length of the first lens is f1, which satisfies the following relationship: 0.21≤f1/f≤0.66, which specifies the ratio of the positive refractive power of the first lens L1 to the overall focal length . When within the specified range, the first lens has an appropriate positive refractive power, which is beneficial to reduce system aberrations. Preferably, 0.33≤f1/f≤0.52 is satisfied.
所述第一透镜L1物侧面的曲率半径为R1，所述第一透镜L1像侧面的曲率半径为R2，满足下列关系式：-1.85≤(R1+R2)/(R1-R2)≤-0.56，合理控制第一透镜L1的形状，使得第一透镜L1能够有效地校正***球差。优选地，满足-1.16≤(R1+R2)/(R1-R2)≤-0.70。The curvature radius of the object side surface of the first lens L1 is R1, and the curvature radius of the image side surface of the first lens L1 is R2, which satisfies the following relationship: -1.85≤(R1+R2)/(R1-R2)≤-0.56 , Reasonably control the shape of the first lens L1, so that the first lens L1 can effectively correct the spherical aberration of the system. Preferably, -1.16≤(R1+R2)/(R1-R2)≤-0.70 is satisfied.
所述摄像光学镜头10的光学总长为TTL，第一透镜L1的轴上厚度为d1，满足下列关系式：0.09≤d1/TTL≤0.29，有利于实现超薄化。优选地，满足0.15≤d1/TTL≤0.23。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: 0.09≤d1/TTL≤0.29, which is beneficial to achieve ultra-thinness. Preferably, 0.15≤d1/TTL≤0.23 is satisfied.
定义所述第二透镜L2的焦距为f2，满足下列关系式：-2.09≤f2/f≤-0.62，通过将第二透镜L2的负光焦度控制在合理范围，有利于矫正光学***的像差。优选地，满足-1.31≤f2/f≤-0.78。The focal length of the second lens L2 is defined as f2, which satisfies the following relationship: -2.09≤f2/f≤-0.62. By controlling the negative refractive power of the second lens L2 in a reasonable range, it is beneficial to correct the image of the optical system. difference. Preferably, it satisfies -1.31≤f2/f≤-0.78.
所述第二透镜L2物侧面的曲率半径为R3，所述第二透镜L2像侧面的曲率半径为R4，满足下列关系式：-0.39≤(R3+R4)/(R3-R4)≤0.86，规定了第二透镜L2的形状，在范围内时，有利于补正轴上色像差问题。优选地，满足-0.25≤(R3+R4)/(R3-R4)≤0.68。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: -0.39≤(R3+R4)/(R3-R4)≤0.86, The shape of the second lens L2 is specified, and when it is within the range, it is beneficial to correct the problem of axial chromatic aberration. Preferably, -0.25≤(R3+R4)/(R3-R4)≤0.68 is satisfied.
所述第二透镜L2的轴上厚度为d3，所述摄像光学镜头10的光学总长为TTL，满足下列关系式：0.02≤d3/TTL≤0.05，有利于实现超薄化。优选地，满足0.03≤d3/TTL≤0.04。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: 0.02≤d3/TTL≤0.05, which is beneficial to realize ultra-thinness. Preferably, 0.03≤d3/TTL≤0.04 is satisfied.
定义所述摄像光学镜头10的焦距为f，所述第三透镜L3的焦距为f3，满足下列关系式：-3.43≤f3/f≤-0.49，通过光焦度的合理分配，使得***具有较佳的成像品质和较低的敏感性。优选地，满足-2.14≤f3/f≤-0.61。Define the focal length of the imaging optical lens 10 as f, and the focal length of the third lens L3 as f3, which satisfies the following relationship: -3.43≤f3/f≤-0.49. Through the reasonable distribution of optical power, the system has a relatively high Good imaging quality and low sensitivity. Preferably, it satisfies -2.14≤f3/f≤-0.61.
所述第三透镜L3物侧面的曲率半径为R5，第三透镜L3像侧面的曲率半径为R6，满足下列关系式：-1.33≤(R5+R6)/(R5-R6)≤-0.01，规定了第三透镜的形状，在条件式规定范围内，可以缓和光线经过镜片的偏折程度，有效减小像差。优选地，满足-0.83≤(R5+R6)/(R5-R6)≤-0.01。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: -1.33≤(R5+R6)/(R5-R6)≤-0.01, which is specified The shape of the third lens is within the range specified by the conditional formula, which can alleviate the degree of deflection of light passing through the lens and effectively reduce aberrations. Preferably, -0.83≤(R5+R6)/(R5-R6)≤-0.01 is satisfied.
所述第三透镜L3的轴上厚度为d5，满足下列关系式：0.02≤d5/TTL≤0.07，有利于实现超薄化。优选地，满足0.03≤d5/TTL≤0.06。The on-axis thickness of the third lens L3 is d5, which satisfies the following relationship: 0.02≤d5/TTL≤0.07, which is beneficial to realize ultra-thinness. Preferably, 0.03≤d5/TTL≤0.06 is satisfied.
定义所述摄像光学镜头10的焦距为f，所述第四透镜的焦距为f4，满足下列关系式：2.03≤f4/f≤29.88，规定了第四透镜焦距与***焦距的比值，在条件式范围内有助于提高光学***性能，优选地，满足3.24≤f4/f≤23.90。The focal length of the imaging optical lens 10 is defined as f, and the focal length of the fourth lens is f4, which satisfies the following relationship: 2.03≤f4/f≤29.88, which specifies the ratio of the focal length of the fourth lens to the focal length of the system, in the conditional formula The range helps to improve the performance of the optical system, and preferably satisfies 3.24≤f4/f≤23.90.
所述第四透镜L4的轴上厚度为d7，所述摄像光学镜头10的光学总长为TTL，满足下列关系式：0.02≤d7/TTL≤0.05，有利于实现超薄化。优选地，满足0.02≤d7/TTL≤0.04。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≤0.05, which is beneficial to realize ultra-thinness. Preferably, 0.02≤d7/TTL≤0.04 is satisfied.
定义所述第五透镜L5物侧面的曲率半径为R9，所述第五透镜L5像侧面的曲率半径为R10，且满足下列关系式：-5.83≤(R9+R10)/(R9-R10)≤-0.80，规定了第五透镜L5的形状，在范围内时，有利于补正轴外画角的像差等问题。优选地，满足-3.65≤(R9+R10)/(R9-R10)≤-1.00。The radius of curvature of the object side surface of the fifth lens L5 is defined as R9, and the radius of curvature of the image side surface of the fifth lens L5 is R10, and the following relationship is satisfied: -5.83≤(R9+R10)/(R9-R10)≤ -0.80, which specifies the shape of the fifth lens L5. When it is within the range, it is helpful to correct the aberrations of the off-axis angle of view. Preferably, it satisfies -3.65≤(R9+R10)/(R9-R10)≤-1.00.
所述第五透镜L5的轴上厚度为d9，所述摄像光学镜头10的光学总长为TTL，满足下列关系式：0.02≤d9/TTL≤0.05，有利于实现超薄化。优选地，满足0.02≤d9/TTL≤0.04。The axial 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: 0.02≤d9/TTL≤0.05, which is beneficial to realize ultra-thinness. Preferably, 0.02≤d9/TTL≤0.04 is satisfied.
定义所述摄像光学镜头10的焦距为f，所述第六透镜L6的焦距为f6，满足下列关系式：1.12≤f6/f≤7.66，通过光焦度的合理分配，使得***具有较佳的成像品质和较低的敏感性。优选地，满足1.80≤f6/f≤6.13。Define the focal length of the imaging optical lens 10 as f, and the focal length of the sixth lens L6 as f6, which satisfies the following relationship: 1.12≤f6/f≤7.66. Through the reasonable distribution of optical power, the system has better Image quality and lower sensitivity. Preferably, 1.80≤f6/f≤6.13 is satisfied.
所述第六透镜L6的轴上厚度为d11，满足下列关系式：0.06≤d11/TTL≤0.20，有利于实现超薄化。优选地，满足0.10≤d11/TTL≤0.16。The on-axis thickness of the sixth lens L6 is d11, which satisfies the following relationship: 0.06≤d11/TTL≤0.20, which is beneficial to realize ultra-thinness. Preferably, 0.10≤d11/TTL≤0.16 is satisfied.
定义所述摄像光学镜头10的焦距为f，且满足下列关系式：f/TTL≥1.24，从而实现超薄化。The focal length of the imaging optical lens 10 is defined as f, and the following relationship is satisfied: f/TTL≥1.24, thereby achieving ultra-thinness.
当满足上述关系时，使得摄像光学镜头10具有良好光学性能的同时，能够满足大光圈、长焦距、超薄化的设计要求；根据该光学镜头10的特性，该光学镜头10尤其适用于由高像素用的CCD、CMOS等摄像元件构成的手机摄像镜头组件和WEB摄像镜头。When the above relationship is satisfied, the imaging optical lens 10 can meet the design requirements of large aperture, long focal length, and ultra-thinness while having good optical performance. According to the characteristics of the optical lens 10, the optical lens 10 is particularly suitable for high-end cameras. Mobile phone camera lens assembly and WEB camera lens composed of CCD, CMOS and other imaging elements for pixels.
下面将用实例进行说明本发明的摄像光学镜头10。各实例中所记载的符号如下所示。焦距、轴上距离、曲率半径、轴上厚度、反曲点位置、驻点位置的单位为mm。The imaging optical lens 10 of the present 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：光学总长(第一透镜L1的物侧面到成像面的轴上距离)，单位为mm；TTL: total optical length (the on-axis distance from the object side of the first lens L1 to the imaging surface), the unit is mm;
优选的，所述透镜的物侧面和/或像侧面上还可以设置有反曲点和/或驻点，以满足高品质的成像需求，具体的可实施方案，参下所述。Preferably, the object side and/or the image side of the lens can also be provided with inflection points and/or stagnation points to meet high-quality imaging requirements. For specific implementations, refer to the following.
表1、表2示出本发明第一实施方式的摄像光学镜头10的设计数据。Table 1 and Table 2 show design data of the imaging optical lens 10 according to the first embodiment of the present invention.
【表1】【Table 1】
Figure PCTCN2019125501-appb-000001
Figure PCTCN2019125501-appb-000001
其中，各符号的含义如下。Among them, the meaning of each symbol is as follows.
S1：光圈；S1: aperture;
R：光学面的曲率半径、透镜时为中心曲率半径；R: The radius of curvature of the optical surface, and the radius of curvature of the center of the lens;
R1：第一透镜L1的物侧面的曲率半径；R1: the radius of curvature of the object side surface of the first lens L1;
R2：第一透镜L1的像侧面的曲率半径；R2: the radius of curvature of the image side surface of the first lens L1;
R3：第二透镜L2的物侧面的曲率半径；R3: the radius of curvature of the object side surface of the second lens L2;
R4：第二透镜L2的像侧面的曲率半径；R4: the radius of curvature of the image side surface of the second lens L2;
R5：第三透镜L3的物侧面的曲率半径；R5: the radius of curvature of the object side surface of the third lens L3;
R6：第三透镜L3的像侧面的曲率半径；R6: the radius of curvature of the image side surface of the third lens L3;
R7：第四透镜L4的物侧面的曲率半径；R7: the radius of curvature of the object side of the fourth lens L4;
R8：第四透镜L4的像侧面的曲率半径；R8: the radius of curvature of the image side surface of the fourth lens L4;
R9：第五透镜L5的物侧面的曲率半径；R9: the radius of curvature of the object side surface of the fifth lens L5;
R10：第五透镜L5的像侧面的曲率半径；R10: the radius of curvature of the image side surface of the fifth lens L5;
R11：第六透镜L6的物侧面的曲率半径；R11: the radius of curvature of the object side surface of the sixth lens L6;
R12：第六透镜L6的像侧面的曲率半径；R12: the radius of curvature of the image side surface of the sixth lens L6;
R13：光学过滤片GF的物侧面的曲率半径；R13: the radius of curvature of the object side surface of the optical filter GF;
R14：光学过滤片GF的像侧面的曲率半径；R14: the radius of curvature of the image side surface of the optical filter GF;
d：透镜的轴上厚度与透镜之间的轴上距离；d: the on-axis thickness of the lens and the on-axis distance between the lenses;
d0：光圈S1到第一透镜L1的物侧面的轴上距离；d0: the on-axis distance from the aperture S1 to the object side of the first lens L1;
d1：第一透镜L1的轴上厚度；d1: the on-axis thickness of the first lens L1;
d2：第一透镜L1的像侧面到第二透镜L2的物侧面的轴上距离；d2: the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;
d3：第二透镜L2的轴上厚度；d3: the on-axis thickness of the second lens L2;
d4：第二透镜L2的像侧面到第三透镜L3的物侧面的轴上距离；d4: the on-axis distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;
d5：第三透镜L3的轴上厚度；d5: the on-axis thickness of the third lens L3;
d6：第三透镜L3的像侧面到第四透镜L4的物侧面的轴上距离；d6: the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;
d7：第四透镜L4的轴上厚度；d7: the on-axis thickness of the fourth lens L4;
d8：第四透镜L4的像侧面到第五透镜L5的物侧面的轴上距离；d8: the on-axis distance from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;
d9：第五透镜L5的轴上厚度；d9: the on-axis thickness of the fifth lens L5;
d10：第五透镜L5的像侧面到第六透镜L6的物侧面的轴上距离；d10: the on-axis distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;
d11：第六透镜L6的轴上厚度；d11: the on-axis thickness of the sixth lens L6;
d12：第六透镜L6的像侧面到光学过滤片GF的物侧面的轴上距离；d12: the on-axis distance from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;
d13：光学过滤片GF的轴上厚度；d13: the axial thickness of the optical filter GF;
d14：光学过滤片GF的像侧面到像面的轴上距离；d14: the on-axis distance from the image side surface of the optical filter GF to the image surface;
nd：d线的折射率；nd: refractive index of d-line;
nd1：第一透镜L1的d线的折射率；nd1: the refractive index of the d-line of the first lens L1;
nd2：第二透镜L2的d线的折射率；nd2: the refractive index of the d-line of the second lens L2;
nd3：第三透镜L3的d线的折射率；nd3: the refractive index of the d-line of the third lens L3;
nd4：第四透镜L4的d线的折射率；nd4: the refractive index of the d-line of the fourth lens L4;
nd5：第五透镜L5的d线的折射率；nd5: the refractive index of the d-line of the fifth lens L5;
nd6：第六透镜L6的d线的折射率；nd6: the refractive index of the d-line of the sixth lens L6;
ndg：光学过滤片GF的d线的折射率；ndg: the refractive index of the d-line of the optical filter GF;
vd：阿贝数；vd: Abbe number;
v1：第一透镜L1的阿贝数；v1: Abbe number of the first lens L1;
v2：第二透镜L2的阿贝数；v2: Abbe number of the second lens L2;
v3：第三透镜L3的阿贝数；v3: Abbe number of the third lens L3;
v4：第四透镜L4的阿贝数；v4: Abbe number of the fourth lens L4;
v5：第五透镜L5的阿贝数；v5: Abbe number of the fifth lens L5;
v6：第六透镜L6的阿贝数；v6: Abbe number of the sixth lens L6;
vg：光学过滤片GF的阿贝数。vg: Abbe number of optical filter GF.
表2示出本发明第一实施方式的摄像光学镜头10中各透镜的非球面数据。Table 2 shows the aspheric surface data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention.
【表2】【Table 2】
Figure PCTCN2019125501-appb-000002
Figure PCTCN2019125501-appb-000002
Figure PCTCN2019125501-appb-000003
Figure PCTCN2019125501-appb-000003
其中，k是圆锥系数，A4、A6、A8、A10、A12、A14、A16、A18、A20是非球面系数。Among them, k is the conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18, A20 are aspherical coefficients.
IH：像高IH: Image height
y＝(x 2/R)/[1+{1-(k+1)(x 2/R 2)} 1/2]+A4x 4+A6x 6+A8x 8+A10x 10+A12x 12+A14x 14+A16x 16+A18x 18+A20x 20     (1) y=(x 2 /R)/[1+{1-(k+1)(x 2 /R 2 )} 1/2 ]+A4x 4 +A6x 6 +A8x 8 +A10x 10 +A12x 12 +A14x 14 +A16x 16 +A18x 18 +A20x 20 (1)
为方便起见，各个透镜面的非球面使用上述公式(1)中所示的非球面。但是，本发明不限于该公式(1)表示的非球面多项式形式。For convenience, the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1). However, the present invention is not limited to the aspheric polynomial form represented by the formula (1).
表3、表4示出本发明第一实施方式的摄像光学镜头10中各透镜的反曲点以及驻点设计数据。其中，P1R1、P1R2分别代表第一透镜L1的物侧面和像侧面，P2R1、P2R2分别代表第二透镜L2的物侧面和像侧面，P3R1、P3R2分别代表第三透镜L3的物侧面和像侧面，P4R1、P4R2分别代表第四透镜L4的物侧面和像侧面，P5R1、P5R2分别代表第五透镜L5的物侧面和像侧面，P6R1、P6R2分别代表第六透镜L6的物侧面和像侧面。“反曲点位置”栏位对应数据为各透镜表面所设置的反曲点到摄像光学镜头10光轴的垂直距离。“驻点位置”栏位对应数据为各透镜表面所设置的驻点到摄像光学镜头10光轴的垂直距离。Table 3 and Table 4 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 10 of the first embodiment of the present invention. Among them, P1R1 and P1R2 represent the object side and image side of the first lens L1 respectively, P2R1 and P2R2 represent the object side and image side of the second lens L2 respectively, and P3R1 and P3R2 represent the object side and image side of the third lens L3 respectively. P4R1, P4R2 represent the object side and image side of the fourth lens L4, P5R1, P5R2 represent the object side and the image side of the fifth lens L5, and 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 data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on the surface of each lens to the optical axis of the imaging optical lens 10.
【表3】【table 3】
 To 反曲点个数Number of recurve points 反曲点位置1Recurve point position 1 反曲点位置2Recurve point position 2
P1R1 P1R1 00  To  To
P1R2 P1R2 00  To  To
P2R1P2R1 11 0.4350.435  To
P2R2 P2R2 00  To  To
P3R1 P3R1 00  To  To
P3R2P3R2 11 0.2450.245  To
P4R1 P4R1 00  To  To
P4R2 P4R2 00  To  To
P5R1 P5R1 00  To  To
P5R2P5R2 22 0.4150.415 0.4950.495
P6R1P6R1 11 1.3651.365  To
P6R2P6R2 11 1.6351.635  To
【表4】【Table 4】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1
P1R1 P1R1 00  To
P1R2 P1R2 00  To
P2R1P2R1 11 0.6850.685
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2P3R2 11 0.4250.425
P4R1 P4R1 00  To
P4R2 P4R2 00  To
P5R1 P5R1 00  To
P5R2 P5R2 00  To
P6R1P6R1 11 1.6851.685
P6R2 P6R2 00  To
图2、图3分别示出了波长为650nm、610nm、555nm、510nm、470nm及430nm的光经过第一实施方式的摄像光学镜头10后的轴向像差以及倍率色差示意图。图4则示出了，波长为555nm的光经过第一实施方式的摄像光学镜头10后的场曲及畸变示意图，图4的场曲S是弧矢方向的场曲，T是子午方向的场曲。2 and 3 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm pass through the imaging optical lens 10 of the first embodiment. Fig. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 555 nm after passing through the imaging optical lens 10 of the first embodiment. The field curvature S in Fig. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction. song.
后出现的表13示出各实例1、2、3中各种数值与条件式中已规定的参数所对应的值。The following Table 13 shows the values corresponding to the various values in each of Examples 1, 2, and 3 and the parameters that have been specified in the conditional expressions.
如表13所示，第一实施方式满足各条件式。As shown in Table 13, the first embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为3.007mm，全视场像高为2.040mm，对角线方向的视场角为30.84°，长焦距、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.84°, a long focal length, ultra-thin, and its axis, The off-axis chromatic aberration is fully corrected and has excellent optical characteristics.
(第二实施方式)(Second embodiment)
第二实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The second embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表5、表6示出本发明第二实施方式的摄像光学镜头20的设计数据。Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.
【表5】【table 5】
Figure PCTCN2019125501-appb-000004
Figure PCTCN2019125501-appb-000004
Figure PCTCN2019125501-appb-000005
Figure PCTCN2019125501-appb-000005
表6示出本发明第二实施方式的摄像光学镜头20中各透镜的非球面数据。Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
【表6】【Table 6】
Figure PCTCN2019125501-appb-000006
Figure PCTCN2019125501-appb-000006
表7、表8示出本发明第二实施方式的摄像光学镜头20中各透镜的反曲点以及驻点设计数据。Table 7 and Table 8 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
【表7】【Table 7】
 To 反曲点个数Number of recurve points 反曲点位置1Recurve point position 1 反曲点位置2Recurve point position 2
P1R1 P1R1 00  To  To
P1R2 P1R2 00  To  To
P2R1P2R1 11 0.3850.385  To
P2R2 P2R2 00  To  To
P3R1 P3R1 00  To  To
P3R2P3R2 11 0.2150.215  To
P4R1 P4R1 00  To  To
P4R2 P4R2 00  To  To
P5R1 P5R1 00  To  To
P5R2P5R2 22 0.1550.155 0.4650.465
P6R1P6R1 11 1.3551.355  To
P6R2P6R2 11 1.6551.655  To
【表8】【Table 8】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1 驻点位置2Stagnation position 2
P1R1 P1R1 00  To  To
P1R2 P1R2 00  To  To
P2R1P2R1 11 0.5950.595  To
P2R2 P2R2 00  To  To
P3R1 P3R1 00  To  To
P3R2P3R2 11 0.3450.345  To
P4R1 P4R1 00  To  To
P4R2 P4R2 00  To  To
P5R1 P5R1 00  To  To
P5R2P5R2 22 0.2950.295 0.5750.575
P6R1P6R1 11 1.7051.705  To
P6R2 P6R2 00  To  To
图6、图7分别示出了波长为650nm、610nm、555nm、510nm、470nm及430nm的光经过第二实施方式的摄像光学镜头20后的轴向像差以及倍率色差示意图。图8则示出了，波长为555nm的光经过第二实施方式的摄像光学镜头20后的场曲及畸变示意图。6 and 7 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm pass through the imaging optical lens 20 of the second embodiment. FIG. 8 shows a schematic diagram of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 20 of the second embodiment.
如表13所示，第二实施方式满足各条件式。As shown in Table 13, the second embodiment satisfies various conditional expressions.
在本实施方式中，所述摄像光学镜头的入瞳直径为3.007mm，全视场像高为2.040mm，对角线方向的视场角为30.84°，长焦距、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.84°, a long focal length, ultra-thin, and its axis, The off-axis chromatic aberration is fully corrected and has excellent optical characteristics.
(第三实施方式)(Third embodiment)
第三实施方式与第一实施方式基本相同，符号含义与第一实施方式相同，以下只列出不同点。The third embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
表9、表10示出本发明第三实施方式的摄像光学镜头30的设计数据。Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.
【表9】【Table 9】
Figure PCTCN2019125501-appb-000007
Figure PCTCN2019125501-appb-000007
表10示出本发明第三实施方式的摄像光学镜头30中各透镜的非球面数据。Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.
【表10】【Table 10】
Figure PCTCN2019125501-appb-000008
Figure PCTCN2019125501-appb-000008
Figure PCTCN2019125501-appb-000009
Figure PCTCN2019125501-appb-000009
表11、表12示出本发明第三实施方式的摄像光学镜头30中各透镜的反曲点以及驻点设计数据。Table 11 and Table 12 show the inflection point and stagnation point design data of each lens in the imaging optical lens 30 of the third embodiment of the present invention.
【表11】【Table 11】
 To 反曲点个数Number of recurve points 反曲点位置1Recurve point position 1
P1R1P1R1 11 1.4951.495
P1R2 P1R2 00  To
P2R1P2R1 11 0.4850.485
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2P3R2 11 0.2150.215
P4R1 P4R1 00  To
P4R2P4R2 11 0.8750.875
P5R1 P5R1 00  To
P5R2P5R2 11 1.0551.055
P6R1P6R1 11 1.4451.445
P6R2P6R2 11 1.7151.715
【表12】【Table 12】
 To 驻点个数Number of stationary points 驻点位置1Stagnation position 1
P1R1 P1R1 00  To
P1R2 P1R2 00  To
P2R1P2R1 11 0.7750.775
P2R2 P2R2 00  To
P3R1 P3R1 00  To
P3R2P3R2 11 0.3250.325
P4R1 P4R1 00  To
P4R2 P4R2 00  To
P5R1 P5R1 00  To
P5R2 P5R2 00  To
P6R1 P6R1 00  To
P6R2 P6R2 00  To
图10、图11分别示出了波长为650nm、610nm、555nm、510nm、470nm及430nm的光经过第三实施方式的摄像光学镜头30后的轴向像差以及倍率色差示意图。图12则示出了，波长为555nm的光经过第三实施方式的摄像光学镜头30后的场曲及畸变示意图。10 and 11 respectively show schematic diagrams of axial aberration and chromatic aberration of magnification after light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 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.
以下表13按照上述条件式列出了本实施方式中对应各条件式的数值。显然，本实施方式的摄像光学***满足上述的条件式。The following Table 13 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.
在本实施方式中，所述摄像光学镜头的入瞳直径为3.007mm，全视场像高为2.040mm，对角线方向的视场角为30.80°，长焦距、超薄，其轴上、轴外色像差充分补正，且具有优秀的光学特征。In this embodiment, the imaging optical lens has an entrance pupil diameter of 3.007mm, a full field of view image height of 2.040mm, a diagonal field of view of 30.80°, a long focal length, ultra-thin, and its axis, The off-axis chromatic aberration is fully corrected and has excellent optical characteristics.
【表13】【Table 13】
参数及条件式Parameters and conditions 实施例1Example 1 实施例2Example 2 实施例3Example 3
(R7+R8)/(R7-R8)(R7+R8)/(R7-R8) 5.025.02 19.9419.94 15.4915.49
d1/d2d1/d2 2.022.02 4.944.94 2.542.54
ff 7.3667.366 7.3667.366 7.3667.366
f1f1 3.2183.218 3.0243.024 3.1083.108
f2f2 -7.691-7.691 -6.867-6.867 -6.864-6.864
f3f3 -5.432-5.432 -12.616-12.616 -10.067-10.067
f4f4 29.84629.846 146.718146.718 54.32454.324
f5f5 -8.690-8.690 -4.181-4.181 -5.123-5.123
f6f6 37.60537.605 16.52916.529 23.20023.200
f12f12 4.2584.258 4.2714.271 4.2784.278
FnoFno 2.4502.450 2.4502.450 2.4502.450
其中，Fno为摄像光学镜头的光圈F数。Among them, Fno is the aperture F number of the imaging optical lens.
本领域的普通技术人员可以理解，上述各实施方式是实现本发明的具体实施方式，而在实际应用中，可以在形式上和细节上对其作各 种改变，而不偏离本发明的精神和范围。A person of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present invention, and in practical applications, various changes can be made to them in form and details without departing from the spirit and spirit of the present invention. range.

Claims (10)

  1. 一种摄像光学镜头，其特征在于，所述摄像光学镜头，自物侧至像侧依序包含：具有正屈折力的第一透镜，具有负屈折力的第二透镜，具有负屈折力的第三透镜，具有正屈折力的第四透镜，具有负屈折力的第五透镜，具有正屈折力的第六透镜；An imaging optical lens, characterized in that, from the object side to the image side, the imaging optical lens includes a first lens with a positive refractive power, a second lens with a negative refractive power, and a second lens with a negative refractive power. Three lenses, a fourth lens with positive refractive power, a fifth lens with negative refractive power, and a sixth lens with positive refractive power;
    所述第四透镜物侧面的曲率半径为R7，所述第四透镜像侧面的曲率半径为R8，所述第一透镜的轴上厚度为d1，所述第一透镜的像侧面到所述第二透镜的物侧面的轴上距离为d2，且满足下列关系式：The radius of curvature of the object side surface of the fourth lens is R7, the radius of curvature of the image side surface of the fourth lens is R8, the axial thickness of the first lens is d1, and the image side surface of the first lens extends to the first lens. The on-axis distance of the object side of the two lenses is d2, and satisfies the following relationship:
    5.00≤(R7+R8)/(R7-R8)≤20.00；5.00≤(R7+R8)/(R7-R8)≤20.00;
    2.00≤d1/d2≤5.00。2.00≤d1/d2≤5.00.
  2. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第六透镜物侧面的曲率半径为R11，所述第六透镜像侧面的曲率半径为R12，且满足下列关系式：The imaging optical lens of claim 1, wherein the radius of curvature of the object side surface of the sixth lens is R11, and the radius of curvature of the image side surface of the sixth lens is R12, and the following relationship is satisfied:
    5.00≤(R11+R12)/(R11-R12)≤20.00。5.00≤(R11+R12)/(R11-R12)≤20.00.
  3. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第五透镜的焦距为f5，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the fifth lens is f5, and the following relationship is satisfied:
    -1.20≤f5/f≤-0.50。-1.20≤f5/f≤-0.50.
  4. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第一透镜的焦距为f1，所述第一透镜物侧面的曲率半径为R1，所述第一透镜像侧面的曲率半径为R2，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the first lens is f1, the curvature radius of the object side of the first lens is R1, and the The curvature radius of the image side surface of the first lens is R2, and the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    0.21≤f1/f≤0.66；0.21≤f1/f≤0.66;
    -1.85≤(R1+R2)/(R1-R2)≤-0.56；-1.85≤(R1+R2)/(R1-R2)≤-0.56;
    0.09≤d1/TTL≤0.29。0.09≤d1/TTL≤0.29.
  5. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第二透镜的焦距为f2，所述第二透镜物侧面的曲率半径为R3，所述第二透镜像侧面的曲率半径为R4，所述第二透镜的轴上厚度为d3，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the second lens is f2, the curvature radius of the object side of the second lens is R3, and the The curvature radius of the image side surface of the second lens is R4, the on-axis thickness of the second lens is d3, the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    -2.09≤f2/f≤-0.62；-2.09≤f2/f≤-0.62;
    -0.39≤(R3+R4)/(R3-R4)≤0.86；-0.39≤(R3+R4)/(R3-R4)≤0.86;
    0.02≤d3/TTL≤0.05。0.02≤d3/TTL≤0.05.
  6. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第三透镜的焦距为f3，所述第三透镜物侧面的曲率半径为R5，所述第三透镜像侧面的曲率半径为R6，所述第三透镜的轴上厚度为d5，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the third lens is f3, and the radius of curvature of the object side surface of the third lens is R5, and the The curvature radius 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 the following relationship is satisfied:
    -3.43≤f3/f≤-0.49；-3.43≤f3/f≤-0.49;
    -1.33≤(R5+R6)/(R5-R6)≤-0.01；-1.33≤(R5+R6)/(R5-R6)≤-0.01;
    0.02≤d5/TTL≤0.07。0.02≤d5/TTL≤0.07.
  7. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第四透镜的焦距为f4，所述第四透镜的轴上厚度为d7，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the fourth lens is f4, the axial thickness of the fourth lens is d7, and the imaging optical lens has a focal length of f4. The total optical length of the optical lens is TTL and satisfies the following relationship:
    2.03≤f4/f≤29.88；2.03≤f4/f≤29.88;
    0.02≤d7/TTL≤0.05。0.02≤d7/TTL≤0.05.
  8. 根据权利要求1所述的摄像光学镜头，其特征在于，所述第五透镜物侧面的曲率半径为R9，所述第五透镜像侧面的曲率半径为R10，所述第五透镜的轴上厚度为d9，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the 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, and the on-axis thickness of the fifth lens Is d9, the total optical length of the camera optical lens is TTL, and satisfies the following relationship:
    -5.83≤(R9+R10)/(R9-R10)≤-0.80；-5.83≤(R9+R10)/(R9-R10)≤-0.80;
    0.02≤d9/TTL≤0.05。0.02≤d9/TTL≤0.05.
  9. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述第六透镜的焦距为f6，所述第六透镜的轴上厚度为d11，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the axial thickness of the sixth lens is d11, and the imaging lens has a focal length of f6. The total optical length of the optical lens is TTL and satisfies the following relationship:
    1.12≤f6/f≤7.66；1.12≤f6/f≤7.66;
    0.06≤d11/TTL≤0.20。0.06≤d11/TTL≤0.20.
  10. 根据权利要求1所述的摄像光学镜头，其特征在于，所述摄像光学镜头的焦距为f，所述摄像光学镜头的光学总长为TTL，且满足下列关系式：The imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, and the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied:
    f/TTL≥1.24。f/TTL≥1.24.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114935812A (en) * 2022-07-22 2022-08-23 江西晶超光学有限公司 Optical system, image capturing module and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018028687A (en) * 2017-10-24 2018-02-22 株式会社ニコン Variable power optical system, optical device, and manufacturing method for variable power optical system
CN110221408A (en) * 2019-06-29 2019-09-10 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110346922A (en) * 2019-06-29 2019-10-18 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110398816A (en) * 2019-06-29 2019-11-01 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110471163A (en) * 2019-06-29 2019-11-19 瑞声科技(新加坡)有限公司 Camera optical camera lens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018028687A (en) * 2017-10-24 2018-02-22 株式会社ニコン Variable power optical system, optical device, and manufacturing method for variable power optical system
CN110221408A (en) * 2019-06-29 2019-09-10 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110346922A (en) * 2019-06-29 2019-10-18 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110398816A (en) * 2019-06-29 2019-11-01 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110471163A (en) * 2019-06-29 2019-11-19 瑞声科技(新加坡)有限公司 Camera optical camera lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114935812A (en) * 2022-07-22 2022-08-23 江西晶超光学有限公司 Optical system, image capturing module and electronic equipment
CN114935812B (en) * 2022-07-22 2022-11-15 江西晶超光学有限公司 Optical system, image capturing module and electronic equipment

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