WO2021114234A1 - Lentille optique photographique - Google Patents

Lentille optique photographique Download PDF

Info

Publication number
WO2021114234A1
WO2021114234A1 PCT/CN2019/125200 CN2019125200W WO2021114234A1 WO 2021114234 A1 WO2021114234 A1 WO 2021114234A1 CN 2019125200 W CN2019125200 W CN 2019125200W WO 2021114234 A1 WO2021114234 A1 WO 2021114234A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
imaging optical
curvature
radius
ttl
Prior art date
Application number
PCT/CN2019/125200
Other languages
English (en)
Chinese (zh)
Inventor
周学鹏
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/CN2019/125200 priority Critical patent/WO2021114234A1/fr
Publication of WO2021114234A1 publication Critical patent/WO2021114234A1/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
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components

Definitions

  • the present invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as imaging devices such as monitors and PC lenses.
  • the photosensitive devices of general photographic lenses are nothing more than photosensitive 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 the development trend of current electronic products with good functions, thin and short appearance, therefore, has a good
  • the miniaturized camera lens with 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 object of the present invention is to provide an imaging optical lens, which has good optical performance and meets the design requirements of large aperture, ultra-thin, and wide-angle.
  • 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.
  • the focal length of the imaging optical lens is f
  • the focal length of the third lens is f3
  • the Abbe number of the first lens is v1
  • the Abbe number of the second lens is v2
  • the following relationship is satisfied: 2.80 ⁇ v1/v2 ⁇ 4.50; -10.00 ⁇ f3/f ⁇ -3.00.
  • the radius of curvature of the object side of the fifth lens is R9
  • the radius of curvature of the image side of the fifth lens is R10
  • the focal length of the seventh lens is f7, and satisfies the following relationship: -1.00 ⁇ f7/f ⁇ -0.50.
  • 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
  • the on-axis thickness of the first lens is d1
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: 0.52 ⁇ f1/f ⁇ 1.66; -4.08 ⁇ (R1+R2)/(R1-R2) ⁇ -1.28; 0.08 ⁇ d1/TTL ⁇ 0.24.
  • the focal length of the second lens is f2
  • the radius of curvature of the object side of the second lens is R3
  • the radius of curvature of the image side of the second lens is R4, and the on-axis thickness of the second lens is d3
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: -14.13 ⁇ f2/f ⁇ -4.10; 3.40 ⁇ (R3+R4)/(R3-R4) ⁇ 15.14; 0.02 ⁇ d3/TTL ⁇ 0.06.
  • 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: 0.66 ⁇ (R5+R6)/(R5-R6) ⁇ 10.29; 0.02 ⁇ d5/TTL ⁇ 0.06.
  • the focal length of the fourth lens is f4
  • the radius of curvature of the object side of the fourth lens is R7
  • the radius of curvature of the image side of the fourth lens is R8, and the on-axis thickness of the fourth lens is d7
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: -218.89 ⁇ f4/f ⁇ 24.99; -4.67 ⁇ (R7+R8)/(R7-R8) ⁇ 0.39; 0.04 ⁇ d7/TTL ⁇ 0.14.
  • the focal length of the fifth lens is f5
  • the axial thickness of the fifth lens is d9
  • the total optical length of the imaging optical lens is TTL, and the following relationship is satisfied: -10.13 ⁇ f5/f ⁇ 2493.58 ; 0.02 ⁇ d9/TTL ⁇ 0.09.
  • the focal length of the sixth lens is f6, the radius of curvature of the object side of the sixth lens is R11, the radius of curvature of the image side of the sixth lens is R12, and the on-axis thickness of the sixth lens is d11 ,
  • the total optical length of the camera optical lens is TTL, and satisfies the following relationship: 0.33 ⁇ f6/f ⁇ 1.92; -4.89 ⁇ (R11+R12)/(R11-R12) ⁇ 0.21; 0.04 ⁇ d11/TTL ⁇ 0.15 .
  • the radius of curvature of the object side surface of the seventh lens is R13
  • the radius of curvature of the image side surface of the seventh lens is R14
  • the axial thickness of the seventh lens is d13
  • the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: 0.03 ⁇ (R13+R14)/(R13-R14) ⁇ 0.83; 0.03 ⁇ d13/TTL ⁇ 0.11.
  • the imaging optical lens according to the present invention has excellent optical characteristics, and has the characteristics of large aperture, wide-angle, 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 seven 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.
  • An optical element such as an optical filter GF may be provided between the seventh lens L7 and the image plane Si.
  • the first lens L1 has positive refractive power
  • the second lens L2 has negative refractive power
  • the third lens L3 has negative refractive power
  • the sixth lens L6 has positive refractive power
  • the seventh lens L7 has negative refractive power.
  • the first lens L1 is made of glass
  • the second lens L2 is made of plastic
  • the third lens L3 is made of plastic
  • the fourth lens L4 is made of plastic
  • the fifth lens L5 is made of plastic
  • the sixth lens L6 is made of plastic
  • the seventh lens is made of plastic.
  • the lens L7 is made of plastic.
  • the Abbe number of the first lens L1 is defined as v1
  • the Abbe number of the second lens L2 is defined as v2, which satisfies the following relationship: 2.80 ⁇ v1/v2 ⁇ 4.50, which defines the first
  • the ratio of the Abbe number of the two lenses in this range is more conducive to the development of ultra-thinness, and at the same time, it is conducive to correcting aberrations.
  • 2.84 ⁇ v1/v2 ⁇ 4.35 is satisfied.
  • the focal length of the overall imaging optical lens 10 as f
  • the focal length of the third lens L3 as f3
  • -10.00 ⁇ f3/f ⁇ -3.00 which specifies the ratio of the focal length of the third lens to the total focal length.
  • the reasonable distribution of optical power makes the system have better imaging quality and lower sensitivity.
  • -9.98 ⁇ f3/f ⁇ -3.03 is satisfied.
  • the focal length of the seventh lens L7 is defined as f7, which satisfies the following relational expression: -1.00 ⁇ f7/f ⁇ -0.50, which specifies the ratio of the seventh lens focal length to the total focal length.
  • the focal length of the overall imaging optical lens 10 is defined as f
  • the focal length of the first lens is f1
  • the following relationship is satisfied: 0.52 ⁇ f1/f ⁇ 1.66, 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, and at the same time, is beneficial to the development of ultra-thin and wide-angle lenses.
  • 0.84 ⁇ f1/f ⁇ 1.33 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: -4.08 ⁇ (R1+R2)/(R1-R2) ⁇ -1.28
  • the axial thickness of the first lens L1 is d1
  • the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.08 ⁇ d1/TTL ⁇ 0.24.
  • it is beneficial to achieve ultra-thinness Preferably, 0.13 ⁇ d1/TTL ⁇ 0.20 is satisfied.
  • the focal length of the overall imaging optical lens 10 as f
  • the focal length of the second lens L2 as f2
  • the focal length of the second lens L2 which satisfies the following relationship: -14.13 ⁇ f2/f ⁇ -4.10, and the negative refractive power of the second lens L2 is controlled at A reasonable range is conducive to correcting the aberration of the optical system.
  • -8.83 ⁇ f2/f ⁇ -5.13 is satisfied.
  • 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: 3.40 ⁇ (R3+R4)/(R3-R4) ⁇ 15.14, which is specified
  • the shape of the second lens L2 is within the range, as the lens becomes ultra-thin and wide-angle, it is beneficial to correct the problem of axial chromatic aberration.
  • Preferably, 5.45 ⁇ (R3+R4)/(R3-R4) ⁇ 12.11 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 ⁇ 0.06. Within the range of the conditional expression, it is beneficial to achieve ultra-thinness . Preferably, 0.03 ⁇ d3/TTL ⁇ 0.04 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: 0.66 ⁇ (R5+R6)/(R5-R6) ⁇ 10.29.
  • the shape of the three lens within the range specified by the conditional formula, can ease the deflection of light passing through the lens and effectively reduce aberrations. Preferably, 1.05 ⁇ (R5+R6)/(R5-R6) ⁇ 8.23 is satisfied.
  • the axial 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 ⁇ 0.06. Within the range of the conditional expression, it is beneficial to achieve ultra-thinness . Preferably, 0.03 ⁇ d5/TTL ⁇ 0.05 is satisfied.
  • the focal length of the overall imaging optical lens 10 is defined as f, and the focal length of the fourth lens is f4, which satisfies the following relationship: -218.89 ⁇ f4/f ⁇ 24.99, which specifies the ratio of the focal length of the fourth lens to the focal length of the system.
  • the range helps to improve the performance of the optical system. Preferably, -136.81 ⁇ f4/f ⁇ 19.99 is satisfied.
  • 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: -4.67 ⁇ (R7+R8)/(R7-R8) ⁇ 0.39, which is specified It is the shape of the fourth lens L4.
  • R7 the curvature radius of the image side surface of the fourth lens L4
  • R8 which satisfies the following relationship: -4.67 ⁇ (R7+R8)/(R7-R8) ⁇ 0.39, which is specified
  • It is the shape of the fourth lens L4.
  • -2.92 ⁇ (R7+R8)/(R7-R8) ⁇ 0.31 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: 0.04 ⁇ d7/TTL ⁇ 0.14. Within the range of the conditional formula, it is beneficial to achieve ultra-thinness . Preferably, 0.07 ⁇ d7/TTL ⁇ 0.11 is satisfied.
  • the focal length of the overall imaging optical lens 10 as f
  • the focal length of the fifth lens L5 as f5
  • the limitation on the fifth lens L5 can effectively make the imaging lens
  • the light angle is gentle, reducing tolerance sensitivity.
  • it satisfies -6.33 ⁇ f5/f ⁇ 1994.87.
  • 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 ⁇ 0.09. Within the range of the conditional expression, it is beneficial to achieve ultra-thinness . Preferably, 0.04 ⁇ d9/TTL ⁇ 0.07 is satisfied.
  • the focal length of the overall imaging optical lens 10 as f
  • the focal length of the sixth lens L6 as f6, which satisfies the following relationship: 0.33 ⁇ f6/f ⁇ 1.92, through the reasonable distribution of optical power, the system has better imaging Quality and low sensitivity.
  • 0.53 ⁇ f6/f ⁇ 1.54 is satisfied.
  • the radius of curvature of the object side surface of the sixth lens L6 is R11, and the radius of curvature of the image side surface of the sixth lens L6 is R12, which satisfies the following relationship: -4.89 ⁇ (R11+R12)/(R11-R12) ⁇ 0.21, What is prescribed is the shape of the sixth lens L6.
  • the condition is within the range, as the ultra-thin and wide-angle develops, it is beneficial to correct the aberration of the off-axis angle of view.
  • it satisfies -3.06 ⁇ (R11+R12)/(R11-R12) ⁇ 0.17.
  • 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: 0.04 ⁇ d11/TTL ⁇ 0.15. Within the range of the conditional expression, it is beneficial to realize ultra-thinness . Preferably, 0.06 ⁇ d11/TTL ⁇ 0.12 is satisfied.
  • the curvature radius of the object side surface of the seventh lens L7 is defined as R13
  • the curvature radius of the image side surface of the seventh lens L7 is defined as R14, which satisfies the following relationship: 0.03 ⁇ (R13+R14)/(R13-R14) ⁇ 0.83, which is specified
  • It is the shape of the eighth lens L8.
  • 0.05 ⁇ (R13+R14)/(R13-R14) ⁇ 0.67 is satisfied.
  • the axial thickness of the seventh lens L7 is d13, and the total optical length of the imaging optical lens 10 is TTL, which satisfies the following relationship: 0.03 ⁇ d13/TTL ⁇ 0.11. Within the range of the conditional formula, it is beneficial to achieve ultra-thinness . Preferably, 0.04 ⁇ d13/TTL ⁇ 0.09 is satisfied.
  • the image height of the overall imaging optical lens 10 is IH, and the following conditional formula is satisfied: TTL/IH ⁇ 1.35, thereby achieving ultra-thinness.
  • the aperture Fno of the imaging optical lens 10 is less than or equal to 1.59. Large aperture, good imaging performance.
  • the FOV of the imaging optical lens 10 is greater than or equal to 82°, thereby achieving a wide angle.
  • the imaging optical lens 10 can meet the design requirements of large aperture, wide-angle, and ultra-thin design 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 recorded 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 seventh lens L7;
  • R14 the radius of curvature of the image side surface of the seventh lens L7;
  • R15 the radius of curvature of the object side of the optical filter GF
  • R16 the radius of curvature of the image side surface of the optical filter GF
  • d0 the on-axis distance from the aperture S1 to the object side of the first lens L1;
  • d2 the on-axis distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;
  • d4 the on-axis distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;
  • d6 the on-axis distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;
  • d10 the on-axis distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;
  • d11 the on-axis thickness of the sixth lens L6;
  • d12 the on-axis distance from the image side surface of the sixth lens L6 to the object side surface of the seventh lens L7;
  • d14 the on-axis distance from the image side surface of the seventh lens L7 to the object side surface of the optical filter GF;
  • d15 the axial thickness of the optical filter GF
  • d16 the on-axis distance from the image side surface of the optical filter GF to the image surface
  • nd refractive index of d-line
  • nd1 the refractive index of the d-line of the first lens L1;
  • nd2 the refractive index of the d-line of the second lens L2;
  • nd3 the refractive index of the d-line of the third lens L3;
  • nd4 the refractive index of the d-line of the fourth lens L4;
  • nd5 the refractive index of the d-line of the fifth lens L5;
  • nd6 the refractive index of the d-line of the sixth lens L6;
  • nd7 the refractive index of the d-line of the seventh lens L7;
  • ndg the refractive index of the d-line of the optical filter GF
  • vg Abbe number of optical filter GF.
  • Table 2 shows the aspheric surface data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention.
  • k is the conic coefficient
  • A4, A6, A8, A10, A12, A14, and A16 are the aspheric coefficients.
  • the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1).
  • the present invention is not limited to the aspheric polynomial form represented by the formula (1).
  • Table 3 and Table 4 show the design data of the inflection point and stagnation point of each lens in the imaging optical lens 10 of the first embodiment of the present invention.
  • P1R1 and P1R2 represent the object side and image side of the first lens L1 respectively
  • P2R1 and P2R2 represent the object side and image side of the second lens L2 respectively
  • P3R1 and P3R2 represent the object side and image side of the third lens L3 respectively.
  • P4R1, P4R2 represent the object side and image side of the fourth lens L4
  • P5R1, P5R2 represent the object side and image side of the fifth lens L5
  • P6R1, P6R2 represent the object side and image side of the sixth lens L6,
  • P7R1 P7R2 represents the object side and image side of the seventh lens L7, respectively.
  • the corresponding data in the “reflection point position” column is the vertical distance from the reflex point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • the data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on the surface of each lens to the optical axis of the imaging optical lens 10.
  • FIG. 4 shows a schematic diagram of field curvature and distortion of light with a wavelength of 555 nm after passing through the imaging optical lens 10 of the first embodiment.
  • the field curvature S in FIG. 4 is the field curvature in the sagittal direction, and T is the field curvature in the meridian direction. song.
  • Table 13 shows the values corresponding to the various numerical values in each of Examples 1, 2, and 3 and the parameters specified in the conditional expressions.
  • the first embodiment satisfies various conditional expressions.
  • the entrance pupil diameter of the imaging optical lens is 3.297mm
  • the full-field image height is 4.636mm
  • the diagonal field angle is 80.00°
  • wide-angle ultra-thin
  • 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 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 436 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 3.296mm
  • the full-field image height is 4.636mm
  • the diagonal field angle is 80.00°
  • wide-angle ultra-thin
  • its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
  • the third embodiment is basically the same as the first embodiment, and the meaning of the symbols is the same as that of the first embodiment, and only the differences are listed below.
  • Table 9 and Table 10 show 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 of 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 436 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 entrance pupil diameter of the imaging optical lens is 3.301mm
  • the full-field image height is 4.636mm
  • the diagonal field angle is 80.00°
  • wide-angle ultra-thin
  • its axis and axis The external chromatic aberration is fully corrected and has excellent optical characteristics.
  • Example 1 Example 2
  • Example 3 v1/v2 3.96 4.21 2.88 f3/f -8.13 -9.96 -3.06 f 5.209 5.207 5.216 f1 5.639 5.751 5.453 f2 -34.140 -36.782 -32.083 f3 -42.327 -51.846 -15.960 f4 86.775 -569.878 13.583 f5 8659.382 207.693 -26.429 f6 5.188 6.682 3.480 f7 -3.609 -5.200 -2.634 f12 6.388 6.427 6.179 Fno 1.58 1.58 1.58
  • Fno is the aperture F number of the imaging optical lens.

Landscapes

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

Abstract

L'invention concerne une lentille optique photographique (10), comprenant successivement d'un côté objet vers un côté image : une première lentille (L1) ayant une réfringence positive, une deuxième lentille (L2) ayant une réfringence négative, une troisième lentille (L3) ayant une réfringence négative, une quatrième lentille (L4), une cinquième lentille (L5), une sixième lentille (L6) ayant une réfringence positive, et une septième lentille (L7) ayant une réfringence négative, la distance focale de la lentille optique photographique (10) étant f, la distance focale de la troisième lentille (L3) étant f3, le nombre d'Abbe de la première lentille (L1) étant v1, et le nombre d'Abbe de la deuxième lentille (L2) étant v2, qui satisfont les expressions relationnelles suivantes : 2,80 ≤ v1/v2 ≤ 4,50 ; et -10,00 ≤ f3/f ≤ -3,00. L'objectif photographique (10) présente de bonnes performances optiques et satisfait également aux exigences de modèle à grande ouverture, grand angle et ultra-mince.
PCT/CN2019/125200 2019-12-13 2019-12-13 Lentille optique photographique WO2021114234A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/125200 WO2021114234A1 (fr) 2019-12-13 2019-12-13 Lentille optique photographique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/125200 WO2021114234A1 (fr) 2019-12-13 2019-12-13 Lentille optique photographique

Publications (1)

Publication Number Publication Date
WO2021114234A1 true WO2021114234A1 (fr) 2021-06-17

Family

ID=76329156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/125200 WO2021114234A1 (fr) 2019-12-13 2019-12-13 Lentille optique photographique

Country Status (1)

Country Link
WO (1) WO2021114234A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190227277A1 (en) * 2018-01-25 2019-07-25 Largan Precision Co., Ltd. Imaging optical lens assembly, imaging apparatus and electronic device
CN110187469A (zh) * 2018-02-22 2019-08-30 大立光电股份有限公司 成像光学镜头、取像装置及电子装置
US20190278063A1 (en) * 2017-10-10 2019-09-12 Kantatsu Co., Ltd. Imaging lens
CN110542985A (zh) * 2018-05-29 2019-12-06 三星电机株式会社 光学成像***

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190278063A1 (en) * 2017-10-10 2019-09-12 Kantatsu Co., Ltd. Imaging lens
US20190227277A1 (en) * 2018-01-25 2019-07-25 Largan Precision Co., Ltd. Imaging optical lens assembly, imaging apparatus and electronic device
CN110187469A (zh) * 2018-02-22 2019-08-30 大立光电股份有限公司 成像光学镜头、取像装置及电子装置
CN110542985A (zh) * 2018-05-29 2019-12-06 三星电机株式会社 光学成像***

Similar Documents

Publication Publication Date Title
WO2021253516A1 (fr) Lentille optique de caméra
WO2021168905A1 (fr) Lentille optique photographique
WO2021196257A1 (fr) Lentille de caméra
WO2021248576A1 (fr) Objectif optique de dispositif de prise de vues
WO2021248577A1 (fr) Lentille de caméra optique
WO2021114233A1 (fr) Lentille optique photographique
WO2021168889A1 (fr) Lentille optique de caméra
WO2021253555A1 (fr) Lentille optique de caméra
WO2021253518A1 (fr) Lentille optique photographique
WO2021109078A1 (fr) Lentille optique photographique
WO2021119894A1 (fr) Caméra optique de capture d'image
WO2021127827A1 (fr) Lentille optique d'appareil de prise de vues
WO2021127895A1 (fr) Lentille optique d'appareil de prise de vues
WO2021128122A1 (fr) Lentille optique de caméra
WO2021128195A1 (fr) Lentille optique d'appareil de prise de vues
WO2021128137A1 (fr) Lentille optique de caméra
WO2021114234A1 (fr) Lentille optique photographique
WO2021237779A1 (fr) Lentille optique de caméra
WO2021127857A1 (fr) Lentille optique de dispositif de prise de vues
WO2021127826A1 (fr) Lentille optique de dispositif de prise de vues
WO2021127829A1 (fr) Lentille optique d'appareil de prise de vues
WO2021119887A1 (fr) Objectif optique de caméra
WO2021119893A1 (fr) Lentille optique photographique
WO2021127844A1 (fr) Lentille optique photographique
WO2021128235A1 (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: 19955825

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: 19955825

Country of ref document: EP

Kind code of ref document: A1