WO2020007068A1 - Système d'imagerie optique - Google Patents

Système d'imagerie optique Download PDF

Info

Publication number
WO2020007068A1
WO2020007068A1 PCT/CN2019/078954 CN2019078954W WO2020007068A1 WO 2020007068 A1 WO2020007068 A1 WO 2020007068A1 CN 2019078954 W CN2019078954 W CN 2019078954W WO 2020007068 A1 WO2020007068 A1 WO 2020007068A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
imaging system
optical imaging
image side
satisfy
Prior art date
Application number
PCT/CN2019/078954
Other languages
English (en)
Chinese (zh)
Inventor
高雪
李明
贺凌波
Original Assignee
浙江舜宇光学有限公司
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 浙江舜宇光学有限公司 filed Critical 浙江舜宇光学有限公司
Publication of WO2020007068A1 publication Critical patent/WO2020007068A1/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
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • 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 application relates to an optical imaging system, and more particularly, the present application relates to an optical imaging system including seven lenses.
  • the present application provides an optical imaging system, such as a wide-angle lens, which can be applied to portable electronic products and can at least solve or partially solve at least one of the above disadvantages in the prior art.
  • the present application provides such an optical imaging system, which includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, Sixth lens and seventh lens.
  • the first lens may have a negative power and its object side may be concave;
  • the second lens may have a positive power or a negative power;
  • the third lens may have a positive power;
  • the fourth lens may have a positive power or a negative power;
  • the fifth lens may have a positive power or a negative power;
  • the sixth lens may have a positive power;
  • the seventh lens may have a negative power.
  • the curvature radius R10 of the image side of the fifth lens and the curvature radius R12 of the image side of the sixth lens may satisfy 4 ⁇ R10 / R12 ⁇ 6.5.
  • the image side of the third lens may be convex; the effective focal length f3 of the third lens and the curvature radius R6 of the image side of the third lens may satisfy -2 ⁇ f3 / R6 ⁇ -1.
  • the maximum half field angle HFOV of the optical imaging system can satisfy 45 ° ⁇ HFOV ⁇ 55 °.
  • the curvature radius R7 of the object side of the fourth lens and the curvature radius R8 of the image side of the fourth lens may satisfy 1 ⁇ R7 / R8 ⁇ 2.
  • the effective focal length f1 of the first lens and the total effective focal length f of the optical imaging system may satisfy -7.5 ⁇ f1 / f ⁇ -3.5.
  • the curvature radius R13 of the object side of the seventh lens and the curvature radius R14 of the image side of the seventh lens may satisfy 2 ⁇ R13 / R14 ⁇ 3.
  • the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens may satisfy -1.5 ⁇ f6 / f7 ⁇ -0.5.
  • the center thickness CT1 of the first lens on the optical axis and the center thickness CT2 of the second lens on the optical axis may satisfy 1 ⁇ CT1 / CT2 ⁇ 2.
  • the separation distance T23 on the optical axis of the second lens and the third lens and the center thickness CT3 of the third lens on the optical axis may satisfy 1 ⁇ T23 / CT3 ⁇ 2.5.
  • the maximum effective radius DT11 of the object side of the first lens and the maximum effective radius DT71 of the object side of the seventh lens may satisfy 1 ⁇ DT11 / DT71 ⁇ 1.5.
  • the maximum effective radius DT12 of the image side of the first lens and half the diagonal length of the effective pixel area ImgH on the imaging surface of the optical imaging system may satisfy 0.6 ⁇ DT12 / ImgH ⁇ 1.
  • the separation distance T67 can satisfy 0.3 ⁇ T45 / (T56 + T67) ⁇ 1.8.
  • the total effective focal length f of the optical imaging system and the effective focal length f2 of the second lens may satisfy
  • the first lens may have negative power and its object side may be concave; the second lens may have positive power or negative power; the third lens may have positive power and its image side may be Convex surface; the fourth lens has positive or negative power; the fifth lens has positive or negative power; the sixth lens may have positive power; the seventh lens may have negative power.
  • the optical imaging system has a wide angle by reasonably distributing the power, surface shape, center thickness of each lens, and the axial distance between each lens. , Excellent imaging quality, low sensitivity, miniaturization and at least one beneficial effect.
  • FIG. 1 is a schematic structural diagram of an optical imaging system according to Embodiment 1 of the present application.
  • 2A to 2D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging system of Embodiment 1;
  • FIG. 3 is a schematic structural diagram of an optical imaging system according to Embodiment 2 of the present application.
  • 4A to 4D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging system of Embodiment 2;
  • FIG. 5 is a schematic structural diagram of an optical imaging system according to Embodiment 3 of the present application.
  • 6A to 6D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging system of Embodiment 3;
  • FIG. 7 is a schematic structural diagram of an optical imaging system according to Embodiment 4 of the present application.
  • 8A to 8D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging system of Embodiment 4;
  • FIG. 9 is a schematic structural diagram of an optical imaging system according to Embodiment 5 of the present application.
  • FIG. 10A to FIG. 10D respectively show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging system of Embodiment 5;
  • FIG. 11 is a schematic structural diagram of an optical imaging system according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging system of Embodiment 6;
  • FIG. 13 is a schematic structural diagram of an optical imaging system according to Embodiment 7 of the present application.
  • 14A to 14D show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging system of Embodiment 7;
  • FIG. 15 is a schematic structural diagram of an optical imaging system according to Embodiment 8 of the present application.
  • 16A to 16D respectively show the on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging system of Embodiment 8;
  • FIG. 17 is a schematic structural diagram of an optical imaging system according to Embodiment 9 of the present application.
  • FIG. 18A to 18D show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging system of Example 9.
  • FIG. 18A to 18D show on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical imaging system of Example 9.
  • first, second, third, etc. are only used to distinguish one feature from another feature, and do not indicate any limitation on the feature. Therefore, without departing from the teachings of this application, a first lens discussed below may also be referred to as a second lens or a third lens.
  • the thickness, size, and shape of the lens have been slightly exaggerated.
  • the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings.
  • the drawings are only examples and are not drawn to scale.
  • the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the concave position is not defined, it means that the lens surface is at least in the paraxial area. Concave.
  • the surface of each lens near the object side is called the object side of the lens, and the surface of each lens near the image side is called the image side of the lens.
  • An optical imaging system may include, for example, seven lenses having optical power, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a first lens. Seven lenses. These seven lenses are arranged in order from the object side to the image side along the optical axis, and there can be an air gap between each adjacent lens.
  • the first lens may have a negative power and its object side may be concave; the second lens has a positive power or a negative power; the third lens may have a positive power; the fourth lens has Positive power or negative power; fifth lens having positive power or negative power; sixth lens may have positive power; seventh lens may have negative power.
  • the image side of the third lens may be convex.
  • the object side surface of the fourth lens may be a convex surface, and the image side surface may be a concave surface.
  • the image side of the fifth lens may be convex.
  • the image side of the sixth lens may be convex.
  • the object-side surface of the seventh lens may be convex, and the image-side surface may be concave.
  • the optical imaging system of the present application can satisfy a conditional expression -7.5 ⁇ f1 / f ⁇ -3.5, where f1 is an effective focal length of the first lens and f is a total effective focal length of the optical imaging system. More specifically, f and f1 can further satisfy -5.5 ⁇ f1 / f ⁇ -3.5, for example, -5.07 ⁇ f1 / f ⁇ -3.85.
  • the effective focal length of the first lens is set reasonably so that it meets the negative power, and can have the function of adjusting the position of the light, while reducing the sensitivity of the optical system.
  • the optical imaging system of the present application may satisfy a conditional expression -2 ⁇ f3 / R6 ⁇ -1, where f3 is an effective focal length of the third lens and R6 is a radius of curvature of an image side of the third lens. More specifically, f3 and R6 can further satisfy ⁇ 1.83 ⁇ f3 / R6 ⁇ ⁇ 1.37.
  • f3 and R6 can further satisfy ⁇ 1.83 ⁇ f3 / R6 ⁇ ⁇ 1.37.
  • Reasonably controlling the effective focal length of the third lens of the optical system and the curvature radius of the image side of the third lens can easily balance the aberrations and improve the system's optical modulation transfer function (MTF) performance.
  • MTF optical modulation transfer function
  • the optical imaging system of the present application can satisfy a conditional expression of 45 ° ⁇ HFOV ⁇ 55 °, where HFOV is a maximum half field angle of the optical imaging system. More specifically, HFOV can further satisfy 45.1 ° ⁇ HFOV ⁇ 47.5 °. Reasonably controlling the maximum field angle of the optical imaging system can effectively guarantee the wide-angle performance of the optical system.
  • the optical imaging system of the present application can satisfy the conditional expression 1 ⁇ R7 / R8 ⁇ 2, where R7 is the radius of curvature of the object side of the fourth lens and R8 is the radius of curvature of the image side of the fourth lens . More specifically, R7 and R8 can further satisfy 1.04 ⁇ R7 / R8 ⁇ 1.79. Reasonably controlling the ratio of the curvature radius of the object side of the fourth lens to the curvature radius of the image side of the fourth lens can effectively improve the chromatic aberration and distortion of the optical system.
  • the optical imaging system of the present application can satisfy the conditional expression 4 ⁇ R10 / R12 ⁇ 6.5, where R10 is the radius of curvature of the image side of the fifth lens and R12 is the radius of curvature of the image side of the sixth lens . More specifically, R10 and R12 can further satisfy 4.28 ⁇ R10 / R12 ⁇ 6.24. Reasonably setting the curvature radius of the image side of the fifth lens and the curvature radius of the image side of the sixth lens can make the optical system have a larger aperture and improve the overall brightness of the imaging.
  • the optical imaging system of the present application can satisfy the conditional expression 2 ⁇ R13 / R14 ⁇ 3, where R13 is the curvature radius of the object side of the seventh lens, and R14 is the curvature radius of the image side of the seventh lens . More specifically, R13 and R14 can further satisfy 2.35 ⁇ R13 / R14 ⁇ 2.73. Reasonable distribution of the curvature radius of the object side of the seventh lens and the image side of the seventh lens can control the light direction of the external field of view, so that the optical system can better match the main light angle of the chip.
  • the optical imaging system of the present application may satisfy a conditional expression -1.5 ⁇ f6 / f7 ⁇ -0.5, where f6 is an effective focal length of the sixth lens and f7 is an effective focal length of the seventh lens. More specifically, f6 and f7 can further satisfy -1.2 ⁇ f6 / f7 ⁇ -0.8, for example, -1.05 ⁇ f6 / f7 ⁇ -0.98.
  • the optical imaging system of the present application can satisfy the conditional expression 1 ⁇ CT1 / CT2 ⁇ 2, where CT1 is the center thickness of the first lens on the optical axis and CT2 is the thickness of the second lens on the optical axis. Center thickness. More specifically, CT1 and CT2 can further satisfy 1.3 ⁇ CT1 / CT2 ⁇ 1.9, such as 1.48 ⁇ CT1 / CT2 ⁇ 1.86.
  • Reasonably controlling the ratio of the central thickness of the first lens on the optical axis to the central thickness of the second lens on the optical axis can effectively correct the chromatic aberration on the axis of the optical system and effectively improve the imaging quality of the optical system.
  • the optical imaging system of the present application can satisfy the conditional expression 1 ⁇ T23 / CT3 ⁇ 2.5, where T23 is the distance between the second lens and the third lens on the optical axis, and CT3 is the third lens. Center thickness on the optical axis. More specifically, T23 and CT3 can further satisfy 1 ⁇ T23 / CT3 ⁇ 2.2, for example, 1.10 ⁇ T23 / CT3 ⁇ 2.00. Reasonably controlling the ratio of the distance between the second lens and the third lens on the optical axis to the center thickness of the third lens on the optical axis can effectively shorten the front end size of the optical system and ensure a good processing gap between the optical lenses.
  • the optical imaging system of the present application can satisfy the conditional expression 1 ⁇ DT11 / DT71 ⁇ 1.5, where DT11 is the maximum effective radius of the object side of the first lens and DT71 is the maximum effective side of the seventh lens. Effective radius. More specifically, DT11 and DT71 can further satisfy 1.25 ⁇ DT11 / DT71 ⁇ 1.39. Reasonably controlling the ratio of the maximum effective radius of the object side of the first lens to the maximum effective radius of the object side of the seventh lens can effectively reduce the incident angle of the edge rays and ensure good tolerance characteristics of the optical system.
  • the optical imaging system of the present application can satisfy the conditional expression 0.6 ⁇ DT12 / ImgH ⁇ 1, where DT12 is the maximum effective radius of the image side of the first lens and ImgH is the diagonal of the effective pixel area on the imaging surface Line length is half. More specifically, DT12 and ImgH can further satisfy 0.66 ⁇ DT12 / ImgH ⁇ 0.76.
  • Reasonably controlling the ratio of the maximum effective radius of the image side of the first lens to the half of the diagonal length of the effective pixel area on the imaging surface can effectively ensure the miniaturization of the front end of the optical system and make the optical system meet the small size structural characteristics.
  • the optical imaging system of the present application can satisfy the conditional expression 0.3 ⁇ T45 / (T56 + T67) ⁇ 1.8, where T45 is the distance between the fourth lens and the fifth lens on the optical axis, and T56 is The distance between the fifth lens and the sixth lens on the optical axis, and T67 is the distance between the sixth lens and the seventh lens on the optical axis. More specifically, T45, T56, and T67 can further satisfy 0.31 ⁇ T45 / (T56 + T67) ⁇ 1.78. It satisfies the conditional expression 0.3 ⁇ T45 / (T56 + T67) ⁇ 1.8, which can effectively ensure the miniaturization of the lens. By reasonably distributing the center thickness of each lens, the light deflection can be eased, sensitivity can be reduced, and astigmatism, distortion and chromatic aberration of the system can be reduced.
  • the optical imaging system of the present application may satisfy a conditional expression
  • the above-mentioned optical imaging system may further include at least one diaphragm to improve the imaging quality of the optical imaging system.
  • the diaphragm may be disposed between the second lens and the third lens.
  • the above-mentioned optical imaging system may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element on the imaging surface.
  • the optical imaging system according to the above embodiment of the present application may employ multiple lenses, such as the seven lenses described above.
  • the size of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved.
  • the optical imaging system configured as described above can also have beneficial effects such as wide-angle, excellent imaging quality, and low sensitivity.
  • At least one of the mirror surfaces of each lens is an aspherical mirror surface.
  • Aspheric lenses are characterized by a curvature that varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the lens center to the periphery of the lens, an aspheric lens has better curvature radius characteristics, and has the advantages of improving distortion and astigmatic aberration. The use of aspheric lenses can eliminate as much aberrations as possible during imaging, thereby improving imaging quality.
  • the number of lenses constituting the optical imaging system can be changed to obtain various results and advantages described in this specification.
  • the optical imaging system is not limited to including seven lenses. If desired, the optical imaging system may also include other numbers of lenses. Specific examples of the optical imaging system applicable to the above embodiments will be further described below with reference to the drawings.
  • FIG. 1 is a schematic structural diagram of an optical imaging system according to Embodiment 1 of the present application.
  • an optical imaging system includes: a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, a first lens
  • the four lenses E4 the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 1 shows the surface type, the radius of curvature, the thickness, the material, and the conic coefficient of each lens of the optical imaging system of Example 1.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • each aspheric lens can be defined using, but not limited to, the following aspheric formula:
  • x is the distance vector from the vertex of the aspheric surface when the aspheric surface is at the height h along the optical axis;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the aspherical i-th order.
  • Table 2 below shows the higher-order coefficients A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18, and A 20 that can be used for each aspherical mirror surface S1-S14 in Example 1. .
  • Table 3 shows the effective focal length f1 to f7 of each lens, the total effective focal length f of the optical imaging system, and the total optical length TTL (that is, from the object side S1 to the imaging surface S17 of the first lens E1 on the optical axis in Example 1 Distance) and the maximum half field angle HFOV.
  • FIG. 2A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 1, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 2B shows an astigmatism curve of the optical imaging system of Example 1, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 2C shows a distortion curve of the optical imaging system of Embodiment 1, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 2D shows a magnification chromatic aberration curve of the optical imaging system of Example 1, which represents deviations of different image heights on the imaging plane after light passes through the lens. It can be known from FIG. 2A to FIG. 2D that the optical imaging system provided in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a schematic structural diagram of an optical imaging system according to Embodiment 2 of the present application.
  • the optical imaging system includes, in order from the object side to the image side along the optical axis, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a first lens
  • the four lenses E4 the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a convex surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 4 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 2, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 5 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 2, where each aspheric surface type can be defined by the formula (1) given in the above Embodiment 1.
  • Table 6 shows the effective focal lengths f1 to f7 of the lenses in Example 2, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 4A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 2, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 4B shows an astigmatism curve of the optical imaging system of Example 2, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 4C shows a distortion curve of the optical imaging system of Embodiment 2, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 4D shows a magnification chromatic aberration curve of the optical imaging system of Example 2, which represents deviations of different image heights on the imaging plane after light passes through the lens. According to FIG. 4A to FIG. 4D, it can be known that the optical imaging system provided in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a schematic structural diagram of an optical imaging system according to Embodiment 3 of the present application.
  • the optical imaging system includes: a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, The four lenses E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a convex surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a concave surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 3.
  • the units of the radius of curvature and thickness are millimeters (mm).
  • Table 8 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 3, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 9 shows the effective focal lengths f1 to f7 of the lenses in Example 3, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 6A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 3, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 6B shows an astigmatism curve of the optical imaging system of Example 3, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 6C shows a distortion curve of the optical imaging system of Embodiment 3, which represents the magnitude of the distortion corresponding to different angles of view.
  • FIG. 6D shows a magnification chromatic aberration curve of the optical imaging system of Example 3, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. According to FIG. 6A to FIG. 6D, it can be known that the optical imaging system provided in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a schematic structural diagram of an optical imaging system according to Embodiment 4 of the present application.
  • the optical imaging system includes, in order from the object side to the image side along the optical axis, a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, and a first lens.
  • the first lens E1 has a negative power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a convex surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a concave surface, and the image side surface S4 is a convex surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 10 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 4, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 11 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 4, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 12 shows the effective focal lengths f1 to f7 of the lenses in Example 4, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 8A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 4, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 8B shows an astigmatism curve of the optical imaging system of Example 4, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 8C shows a distortion curve of the optical imaging system of Embodiment 4, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 8D shows a magnification chromatic aberration curve of the optical imaging system of Example 4, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. According to FIG. 8A to FIG. 8D, it can be known that the optical imaging system provided in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a schematic structural diagram of an optical imaging system according to Embodiment 5 of the present application.
  • the optical imaging system includes: a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, a first lens
  • the four lenses E4 the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 13 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 5, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 14 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 5, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 15 shows the effective focal lengths f1 to f7 of each lens, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field angle HFOV in Example 5.
  • FIG. 10A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 5, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 10B shows an astigmatism curve of the optical imaging system of Example 5, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 10C shows a distortion curve of the optical imaging system of Embodiment 5, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 10D shows the magnification chromatic aberration curve of the optical imaging system of Example 5, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. It can be seen from FIGS. 10A to 10D that the optical imaging system given in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a schematic structural diagram of an optical imaging system according to Embodiment 6 of the present application.
  • an optical imaging system includes: a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, The four lenses E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 16 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 6, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 17 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 6, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 18 shows the effective focal lengths f1 to f7 of each lens in Example 6, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 12A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 6, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 12B shows an astigmatism curve of the optical imaging system of Example 6, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 12C shows a distortion curve of the optical imaging system of Embodiment 6, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 12D shows a magnification chromatic aberration curve of the optical imaging system of Example 6, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. According to FIG. 12A to FIG. 12D, it can be known that the optical imaging system provided in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a schematic structural diagram of an optical imaging system according to Embodiment 7 of the application.
  • the optical imaging system includes: a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, The four lenses E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a convex surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 19 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 7, where the units of the radius of curvature and thickness are both millimeters (mm).
  • Table 20 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 7, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 21 shows the effective focal lengths f1 to f7 of each lens in Example 7, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 14A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 7, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 14B shows an astigmatism curve of the optical imaging system of Example 7, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 14C shows a distortion curve of the optical imaging system of Embodiment 7, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 14D shows a magnification chromatic aberration curve of the optical imaging system of Example 7, which represents the deviation of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging system provided in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a schematic structural diagram of an optical imaging system according to Embodiment 8 of the present application.
  • the optical imaging system includes, in order from the object side to the image side along the optical axis, a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, a first lens
  • the four lenses E4 the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a positive power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a negative power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a negative power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 22 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 8, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 23 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 8, where each aspheric surface type can be defined by the formula (1) given in the above-mentioned Embodiment 1.
  • Table 24 shows the effective focal lengths f1 to f7 of the lenses in Example 8, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 16A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 8, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • Fig. 16B shows an astigmatism curve of the optical imaging system of Example 8, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 16C shows a distortion curve of the optical imaging system of Embodiment 8, which represents the magnitude of the distortion corresponding to different angles of view.
  • FIG. 16D shows a magnification chromatic aberration curve of the optical imaging system of Example 8, which represents the deviation of different image heights on the imaging plane after the light passes through the lens. It can be seen from FIGS. 16A to 16D that the optical imaging system given in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 is a schematic structural diagram of an optical imaging system according to Embodiment 9 of the present application.
  • the optical imaging system includes, in order from the object side to the image side along the optical axis, a first lens E1, a second lens E2, a diaphragm STO, a third lens E3, a first lens
  • the four lenses E4 the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8, and the imaging surface S17.
  • the first lens E1 has a negative optical power, and an object side surface S1 thereof is a concave surface, and an image side surface S2 is a concave surface.
  • the second lens E2 has a negative power, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens E3 has a positive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a convex surface.
  • the fourth lens E4 has a positive power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens E5 has a positive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the sixth lens E6 has a positive power
  • the object side surface S11 is a concave surface
  • the image side surface S12 is a convex surface.
  • the seventh lens E7 has a negative power
  • its object side surface S13 is a convex surface
  • its image side surface S14 is a concave surface.
  • the filter E8 has an object side surface S15 and an image side surface S16. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface S17.
  • Table 25 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of Example 9, where the units of the radius of curvature and thickness are millimeters (mm).
  • Table 26 shows the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 9, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.
  • Table 27 shows the effective focal lengths f1 to f7 of each lens in Example 9, the total effective focal length f of the optical imaging system, the total optical length TTL, and the maximum half field of view angle HFOV.
  • FIG. 18A shows an on-axis chromatic aberration curve of the optical imaging system of Embodiment 9, which indicates that light rays with different wavelengths deviate from the focal point after passing through the lens.
  • FIG. 18B shows an astigmatism curve of the optical imaging system of Example 9, which represents a meridional image plane curvature and a sagittal image plane curvature.
  • FIG. 18C shows a distortion curve of the optical imaging system of Embodiment 9, which represents the magnitude of distortion corresponding to different angles of view.
  • FIG. 18D shows a magnification chromatic aberration curve of the optical imaging system of Example 9, which represents the deviation of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging system provided in Embodiment 9 can achieve good imaging quality.
  • Examples 1 to 9 satisfy the relationships shown in Table 28, respectively.
  • the present application also provides an imaging device whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be an independent imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging system described above.

Landscapes

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

Abstract

L'invention concerne une lentille d'imagerie optique. Le système comprend, d'un côté objet à un côté image le long d'un axe optique et dans l'ordre : une première lentille (E1), une deuxième lentille (E2), une troisième lentille (E3), une quatrième lentille (E4), une cinquième lentille (E5), une sixième lentille (E6) et une septième lentille (E7). La première lentille (E1) et la septième lentille (E7) ont toutes deux une puissance optique négative; la deuxième lentille (E2), la quatrième lentille (E4) et la cinquième lentille (E5) ont toutes une puissance optique positive ou négative; la troisième lentille (E3) et la sixième lentille (E6) ont toutes deux une puissance optique positive; la surface côté objet (S1) de la première lentille (E1) est une surface concave; le rayon de courbure R10 de la surface côté image (S10) de la cinquième lentille (E5) et le rayon de courbure R12 de la surface côté image (S12) de la sixième lentille (E6) satisfont à l'équation 4＜R10/R12< 6,5.
PCT/CN2019/078954 2018-07-05 2019-03-21 Système d'imagerie optique WO2020007068A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810730916.0 2018-07-05
CN201810730916.0A CN108873254B (zh) 2018-07-05 2018-07-05 光学成像系统

Publications (1)

Publication Number Publication Date
WO2020007068A1 true WO2020007068A1 (fr) 2020-01-09

Family

ID=64299228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/078954 WO2020007068A1 (fr) 2018-07-05 2019-03-21 Système d'imagerie optique

Country Status (2)

Country Link
CN (1) CN108873254B (fr)
WO (1) WO2020007068A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11982875B2 (en) 2020-05-29 2024-05-14 Largan Precision Co., Ltd. Image capturing lens assembly, imaging apparatus and electronic device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI674432B (zh) 2019-02-01 2019-10-11 大立光電股份有限公司 光學攝影透鏡組、取像裝置及電子裝置
JP6882838B2 (ja) * 2019-03-07 2021-06-02 カンタツ株式会社 撮像レンズ
TWI707157B (zh) 2019-06-18 2020-10-11 大立光電股份有限公司 攝影透鏡系統、取像裝置及電子裝置
WO2021195884A1 (fr) * 2020-03-30 2021-10-07 深圳市大疆创新科技有限公司 Système optique, dispositif de photographie et plateforme mobile
CN111505812B (zh) * 2020-07-02 2020-10-13 瑞声通讯科技(常州)有限公司 摄像光学镜头
CN111505811B (zh) * 2020-07-02 2020-10-16 瑞声通讯科技(常州)有限公司 摄像光学镜头
CN116880043B (zh) * 2023-09-08 2024-01-05 江西联益光学有限公司 光学镜头

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106990510A (zh) * 2017-06-02 2017-07-28 浙江舜宇光学有限公司 光学成像系统
US20180003926A1 (en) * 2014-08-01 2018-01-04 Largan Precision Co, Ltd. Photographing optical lens assembly, image capturing unit and electronic device
CN107621682A (zh) * 2017-10-25 2018-01-23 浙江舜宇光学有限公司 光学成像镜头
CN108181701A (zh) * 2018-02-28 2018-06-19 浙江舜宇光学有限公司 光学成像镜片组
CN108873253A (zh) * 2018-07-02 2018-11-23 浙江舜宇光学有限公司 摄像镜头
CN208521056U (zh) * 2018-07-05 2019-02-19 浙江舜宇光学有限公司 光学成像系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101659167B1 (ko) * 2014-10-16 2016-09-22 삼성전기주식회사 촬상 광학계
TWI669528B (zh) * 2015-06-25 2019-08-21 佳能企業股份有限公司 光學鏡頭

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180003926A1 (en) * 2014-08-01 2018-01-04 Largan Precision Co, Ltd. Photographing optical lens assembly, image capturing unit and electronic device
CN106990510A (zh) * 2017-06-02 2017-07-28 浙江舜宇光学有限公司 光学成像系统
CN107621682A (zh) * 2017-10-25 2018-01-23 浙江舜宇光学有限公司 光学成像镜头
CN108181701A (zh) * 2018-02-28 2018-06-19 浙江舜宇光学有限公司 光学成像镜片组
CN108873253A (zh) * 2018-07-02 2018-11-23 浙江舜宇光学有限公司 摄像镜头
CN208521056U (zh) * 2018-07-05 2019-02-19 浙江舜宇光学有限公司 光学成像系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11982875B2 (en) 2020-05-29 2024-05-14 Largan Precision Co., Ltd. Image capturing lens assembly, imaging apparatus and electronic device

Also Published As

Publication number Publication date
CN108873254A (zh) 2018-11-23
CN108873254B (zh) 2023-11-21

Similar Documents

Publication Publication Date Title
WO2020024633A1 (fr) Ensemble de lentilles d&#39;imagerie optique
WO2020024634A1 (fr) Groupe de lentilles d&#39;imagerie optique
WO2019228064A1 (fr) Objectif d&#39;imagerie
WO2020010879A1 (fr) Système d&#39;imagerie optique
WO2019233160A1 (fr) Groupe de lentilles d&#39;imagerie optique
WO2019100868A1 (fr) Lentille d&#39;imagerie optique
WO2020029620A1 (fr) Ensemble de lentilles d&#39;imagerie optique
WO2020093725A1 (fr) Système optique de capture d&#39;image
WO2020007080A1 (fr) Objectif
WO2020019794A1 (fr) Lentille d&#39;imagerie optique
WO2020001066A1 (fr) Objectif d&#39;appareil photographique
WO2020010878A1 (fr) Système d&#39;imagerie optique
WO2019192180A1 (fr) Lentille d&#39;imagerie optique
WO2019223263A1 (fr) Objectif
WO2020107935A1 (fr) Lentille d&#39;imagerie optique
WO2020001119A1 (fr) Objectif
WO2020038134A1 (fr) Système d&#39;imagerie optique
WO2021068753A1 (fr) Système d&#39;imagerie optique
WO2020191951A1 (fr) Lentille d&#39;imagerie optique
WO2020073702A1 (fr) Ensemble de lentilles d&#39;imagerie optique
WO2020168717A1 (fr) Lentille d&#39;imagerie optique
WO2020088022A1 (fr) Ensemble de lentilles d&#39;imagerie optique
WO2020007068A1 (fr) Système d&#39;imagerie optique
WO2020007081A1 (fr) Objectif d&#39;imagerie optique
WO2020151251A1 (fr) Ensemble lentille optique

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: 19830509

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: 19830509

Country of ref document: EP

Kind code of ref document: A1