WO2022110066A1 - 光学成像系统、取像模组及电子装置 - Google Patents

光学成像系统、取像模组及电子装置 Download PDF

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Publication number
WO2022110066A1
WO2022110066A1 PCT/CN2020/132469 CN2020132469W WO2022110066A1 WO 2022110066 A1 WO2022110066 A1 WO 2022110066A1 CN 2020132469 W CN2020132469 W CN 2020132469W WO 2022110066 A1 WO2022110066 A1 WO 2022110066A1
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Prior art keywords
lens
imaging system
optical imaging
optical axis
object side
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PCT/CN2020/132469
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English (en)
French (fr)
Inventor
华露
杨健
李明
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欧菲光集团股份有限公司
江西晶超光学有限公司
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Priority to PCT/CN2020/132469 priority Critical patent/WO2022110066A1/zh
Publication of WO2022110066A1 publication Critical patent/WO2022110066A1/zh

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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 application relates to optical imaging technology, and in particular, to an optical imaging system, an imaging module and an electronic device.
  • the thickness of the lens determines the thickness of the entire electronic product, so reducing the thickness of the lens has become the main way to make electronic products light and thin.
  • the prior art has the following problems: the front camera of most of the current electronic products has a large aperture, which will occupy part of the entire screen area, making the display screen part of the area limited.
  • the camera is made in the form of bangs to increase the display area, but it is always impossible to achieve a full-screen effect with a front camera on a mobile phone.
  • the embodiment of the present application proposes an optical imaging system, which includes sequentially from the object side to the image side:
  • a first lens with positive refractive power the object side of the first lens is convex at the near optical axis, and the image side of the first lens is concave at the near optical axis;
  • the object side of the fourth lens is concave at the near optical axis, and the image side of the fourth lens is convex at the near optical axis;
  • the fifth lens with negative refractive power the object side of the fifth lens is convex at the near optical axis, the image side of the fifth lens is concave at the near optical axis, and the object side of the fifth lens is the same as
  • the sides of the image are all aspherical;
  • optical imaging system satisfies the following relationship:
  • f3 is the effective focal length of the third lens
  • f is the effective focal length of the optical imaging system
  • the above-mentioned optical imaging system can further shorten the total length of the optical imaging system and the head diameter of the lens to realize the miniaturization of the lens on the basis of realizing the characteristics of large aperture and high pixel by reasonably configuring the bending force and surface shape of each lens.
  • the screen-to-body ratio is increased, and the full-screen effect is further promoted and realized.
  • the aberration generated by the third lens can be extremely compressed, thereby improving image quality and reducing assembly sensitivity.
  • the optical imaging system satisfies the following relationship:
  • the object side of the fifth lens has a first intersection point with the optical axis, and the tangent plane of each point in the effective diameter of the object side of the fifth lens intersects with the plane perpendicular to the optical axis to form an acute angle
  • sag51m is the The distance from the point with the largest included angle of the acute angle to the first intersection in the direction of the optical axis; the maximum effective half-aperture from the first intersection to the object side of the fifth lens is one-fourth away from the first intersection
  • sag51s is the distance from the first intersection to the second intersection in the direction of the optical axis; sd51m is the semi-diameter at the point where the acute angle is the largest; sd51s is the second intersection half caliber.
  • the surface shape of the object side of the fifth lens extends from the center of the lens to the object side, which is beneficial to reduce the difficulty of forming the lens of the fifth lens, and can effectively avoid internal reflection rays.
  • This leads to ghost images on the imaging surface, reducing the possibility of stray light, thereby greatly improving the imaging quality.
  • the value is less than 0.2, the risk of ghost images will increase and the image quality will be affected.
  • the optical imaging system satisfies the following relationship:
  • et3 is the thickness of the maximum effective semi-diameter of the third lens in the direction of the optical axis
  • et23 is the maximum effective diameter of the image side of the second lens to the maximum effective diameter of the object side of the third lens
  • the distance in the direction of the optical axis, et34 is the distance between the maximum effective diameter of the image side of the third lens and the maximum effective diameter of the object side of the fourth lens in the direction of the optical axis.
  • the optical imaging system satisfies the following relationship:
  • sd21 is the largest effective semi-aperture of the object side of the second lens
  • sd22 is the largest effective semi-aperture of the image side of the second lens
  • sd11 is the largest effective semi-aperture of the object side of the first lens
  • sd12 is the maximum effective half-aperture of the image side surface of the first lens.
  • the optical imaging system satisfies the following relationship:
  • f5 is the effective focal length of the fifth lens
  • sag51 is the distance from the intersection of the object side of the fifth lens on the optical axis to the maximum effective semi-aperture of the object side of the fifth lens in the direction of the optical axis .
  • the fifth lens has at least one inflection point, which is beneficial to correct the distortion and field curvature generated by the front lens group, so that the configuration of the refractive power close to the imaging surface is more uniform; in addition, when the above formula is satisfied, the vertical direction of the lens can be reasonably controlled.
  • the refractive power and sagittal height can avoid the lens being too thin and thick, reduce the incident angle of light on the imaging surface, reduce the overall optical sensitivity of the optical imaging system, and make it more stable.
  • the optical imaging system satisfies the following relationship:
  • sag42 is the distance from the intersection of the image side of the fourth lens on the optical axis to the position of the maximum effective radius of the image side of the fourth lens in the direction of the optical axis
  • et4 is the maximum effective half of the fourth lens The thickness of the aperture in the direction of the optical axis.
  • the fourth lens makes the fourth lens to be U-shaped, and provides support for the light incident from the front lens group to the image surface at a small angle while maintaining a reasonable difference between the thickness and the edge.
  • the optical imaging system satisfies the following relationship:
  • TTL is the distance on the optical axis from the object side of the first lens to the imaging plane of the optical imaging system
  • etal is the maximum effective semi-aperture of the first lens to the fifth lens in the direction of the optical axis the sum of the thicknesses.
  • controlling the above ratio within a reasonable range is conducive to effectively shortening the overall length of the optical imaging system, which in turn can compress the overall length of the optical imaging system and make the lens structure more compact;
  • the miniaturization and thinning of the optical imaging system are realized.
  • the optical imaging system satisfies the following relationship:
  • Imgh is half of the image height corresponding to the maximum angle of view of the optical imaging system
  • sd51 is the maximum effective half-aperture of the object side of the fifth lens.
  • the optical imaging system satisfies the following relationship:
  • sd51 is the maximum effective semi-aperture of the object side of the fifth lens
  • atl is the distance on the optical axis of the air gap between two adjacent lenses from the first lens to the fifth lens Sum.
  • the aperture of the fifth lens is too large, which increases the material cost and reduces the stability of the lens, and on the other hand, the deflection angle of the edge light on the object side of the fifth lens is too large, which reduces the resolution
  • the sum of the thickness in the air gap is too large, which is not conducive to reducing the total optical length and realizing the miniaturization of the entire optical imaging system.
  • the optical imaging system satisfies the following relationship:
  • BF is the minimum distance from the image side of the fifth lens to the imaging plane of the optical imaging system in the direction of the optical axis
  • et52 is the distance between the maximum effective semi-aperture of the image side of the fifth lens and the filter The distance between the air gaps on the optical axis.
  • the back focus can be kept at about 0.8mm, which can ensure good matching with the photosensitive chip, and the reasonable control of the distance from the image side edge of the fifth lens to the filter can also be achieved. It is conducive to the more reasonable convergence of light to the imaging surface, which helps to control aberrations, improve resolution, and improve imaging quality.
  • BFL/et52 ⁇ 1 the configuration of the two parameters is unreasonable, which will easily lead to excessive light deflection angle, poor light convergence effect, destroy the correction of aberrations, and affect the imaging quality.
  • an imaging module including:
  • a photosensitive element, the photosensitive element is arranged on the image side of the optical imaging system.
  • the optical imaging system in the imaging module of the embodiment of the present application can further shorten the overall length of the optical imaging system and the head of the lens on the basis of realizing the characteristics of large aperture and high pixel by reasonably configuring the bending force and surface shape of each lens.
  • the external aperture is used to achieve the miniaturization of the lens and increase the screen ratio, thereby promoting and realizing the effect of a full screen.
  • the aberration generated by the third lens can be extremely compressed, thereby improving image quality and reducing assembly sensitivity.
  • An embodiment of the present application provides an electronic device, which includes: a casing and the imaging module of the above-mentioned embodiment, where the imaging module is mounted on the casing.
  • the electronic device of the embodiment of the present application includes an imaging module, and the optical imaging system in the imaging module can be further configured on the basis of realizing the characteristics of large aperture and high pixel by reasonably configuring the bending force and surface shape of each lens.
  • the overall length of the optical imaging system and the head diameter of the lens are shortened to realize the miniaturization of the lens, and the screen ratio is increased, thereby promoting and realizing the effect of a full screen.
  • the aberration generated by the third lens can be extremely compressed, thereby improving image quality and reducing assembly sensitivity.
  • FIG. 1 is a schematic structural diagram of a fifth lens in the optical imaging system according to the first embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of the first lens to the fifth lens in the optical imaging system according to the second embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of the optical imaging system according to the first embodiment of the present application.
  • FIG. 4 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the first embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an optical imaging system according to a second embodiment of the present application.
  • FIG. 6 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the second embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an optical imaging system according to a third embodiment of the present application.
  • FIG. 8 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the third embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an optical imaging system according to a fourth embodiment of the present application.
  • FIG. 10 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the fourth embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an optical imaging system according to a fifth embodiment of the present application.
  • FIG. 12 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the fifth embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of an optical imaging system according to a sixth embodiment of the present application.
  • FIG. 14 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the sixth embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of an optical imaging system according to a seventh embodiment of the present application.
  • FIG. 16 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the seventh embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of an optical imaging system according to an eighth embodiment of the present application.
  • FIG. 18 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the eighth embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of an optical imaging system according to a ninth embodiment of the present application.
  • FIG. 20 is a graph of spherical aberration, astigmatism and distortion of the optical imaging system in the ninth embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • the first lens L1 The first lens L1
  • the third lens L3 is the third lens L3
  • first and second are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined with “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “multiple” is two or more , unless otherwise specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “beneath” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level less than the second feature.
  • the optical imaging system 10 of the embodiment of the present application sequentially includes a first lens L1 having a positive refractive power, a second lens L2 having a refractive power, and a first lens having a negative refractive power from the object side to the image side A triple lens L3, a fourth lens L4 having a positive refractive power, and a fifth lens L5 having a negative refractive power.
  • the first lens L1 has an object side S1 and an image side S2; the second lens L2 has an object side S4 and an image side S5; the third lens L3 has an object side S6 and an image side S7, and the fourth lens L4 has an object side S8 and an image side S9, the object side S8 of the fourth lens L4 is convex at the near optical axis, the image side S9 of the fourth lens L4 is convex at the near optical axis; the fifth lens L5 has an object side S10 and an image side S11.
  • the optical imaging system 10 satisfies the following relationship:
  • f3 is the effective focal length of the third lens L3
  • f is the effective focal length of the optical imaging system 10 .
  • the above-mentioned optical imaging system 10 can further shorten the overall length of the optical imaging system 10 and the head diameter of the lens to realize the miniaturization of the lens on the basis of realizing the characteristics of large aperture and high pixel by reasonably configuring the bending force and surface shape of each lens. It improves the screen ratio, and then promotes and realizes the effect of full screen.
  • the aberration generated by the third lens L3 can be extremely compressed, thereby improving image quality and reducing assembly sensitivity.
  • the optical imaging system 10 further includes a stop STO.
  • the stop STO may be disposed before the first lens L1, after the fifth lens L5, between any two lenses, or on the surface of any one lens.
  • Aperture STO is used to reduce stray light and help improve image quality.
  • the diaphragm STO is arranged on the object side surface S2 of the first lens L1.
  • the optical imaging system 10 further includes an infrared filter L6, and the infrared filter L6 has an object side S12 and an image side S13.
  • the infrared filter L6 is arranged on the image side of the fifth lens L6, and the infrared filter L6 is used to filter the imaging light, specifically for isolating the infrared light, preventing the infrared light from being received by the photosensitive element, thereby preventing the infrared light from affecting the normal image. Color and sharpness are affected, thereby improving the imaging quality of the imaging lens 10 .
  • the infrared filter L6 is an infrared cut-off filter.
  • the optical imaging system 10 satisfies the following relationship:
  • the object side S10 of the fifth lens L5 has a first intersection point with the optical axis, and the tangent plane of each point in the effective diameter of the object side S10 of the fifth lens L5 intersects with the plane perpendicular to the optical axis to form an acute angle, as shown in FIG. 1 Among them, the object side S10 of the fifth lens L5 has a first intersection A with the optical axis, the object side S10 of the fifth lens L5 is a curved surface, and theoretically it has countless non-parallel tangent planes.
  • the tangent plane L of each point in the effective radius intersects the plane perpendicular to the optical axis to form an acute angle, the point with the largest acute angle is B, and sag51m is the point B with the largest acute angle to the first intersection A in the direction of the optical axis.
  • the surface shape of the object side S10 of the fifth lens L5 extends from the center of the lens to the object side, which is beneficial to reduce the difficulty of lens forming of the fifth lens L5, and can also effectively avoid
  • the internal reflection light causes ghost images on the imaging surface S14, which reduces the possibility of stray light and greatly improves the imaging quality.
  • the value is less than 0.2, the risk of ghost images will increase and the image quality will be affected.
  • the optical imaging system 10 satisfies the following relationship:
  • et1 is the thickness of the maximum effective semi-aperture of the first lens L1 in the direction of the optical axis
  • et2 is the thickness of the largest effective semi-aperture of the second lens L2 in the direction of the optical axis
  • et3 is the thickness of the third lens L2 in the direction of the optical axis
  • et4 is the thickness of the largest effective semi-aperture of the fourth lens L4 in the direction of the optical axis
  • et5 is the thickness of the largest effective semi-aperture of the fifth lens L5 in the direction of the optical axis thickness
  • et23 is the distance from the maximum effective diameter of the image side S5 of the second lens L2 to the maximum effective diameter of the object side S6 of the third lens L3 in the direction of the optical axis
  • et34 is the image side S7 of the third lens L3.
  • the distance between the maximum effective diameter and the maximum effective diameter of the object side S8 of the fourth lens L4 in the direction of the optical axis, et52 is the air between the maximum effective semi-diameter of the image side S11 of the fifth lens L5 and the filter L6
  • the distance of the gap on the optical axis, etal is the sum of the thicknesses of the first lens L1 to the fifth lens L5 in the direction of the optical axis, that is, the sum of et1, et2, et3, et4 and et5.
  • the lens includes an effective diameter and a non-effective diameter. The light incident from the outside can pass through the effective diameter of the lens and finally reach the photosensitive element; the non-effective diameter is mainly used to support the lens barrel.
  • the optical imaging system 10 satisfies the following relationship:
  • sd21 is the maximum effective half-aperture of the object side S4 of the second lens L2
  • sd22 is the maximum effective half-aperture of the image side S5 of the second lens L2
  • sd11 is the maximum effective half-aperture of the object side S1 of the first lens L1
  • sd12 is the maximum effective half aperture of the image side surface S2 of the first lens L1.
  • the optical imaging system 10 satisfies the following relationship:
  • f5 is the effective focal length of the fifth lens L5;
  • sag51 is the distance from the intersection of the object side S10 of the fifth lens L5 on the optical axis to the maximum effective semi-aperture of the object side S10 of the fifth lens L5 in the direction of the optical axis.
  • the fifth lens L5 has at least one inflection point, which is conducive to correcting the distortion and field curvature generated by the front lens group, so that the configuration of the refractive power close to the imaging surface S14 is more uniform; in addition, when the above formula is satisfied, the lens can be reasonably controlled in the vertical direction.
  • the refractive power and sagittal height of the direction can prevent the lens from being too thin and thick, reduce the incident angle of light on the imaging surface S14 , and reduce the overall optical sensitivity of the optical imaging system 10 to achieve higher stability.
  • the optical imaging system 10 satisfies the following relationship:
  • sag42 is the distance from the intersection of the image side S9 of the fourth lens L4 on the optical axis to the position of the maximum effective radius of the image side S9 of the fourth lens L4 in the direction of the optical axis
  • et4 is the maximum effective semi-diameter of the fourth lens L4 thickness in the direction of the optical axis.
  • the optical imaging system 10 satisfies the following relationship:
  • TTL is the distance from the object side S1 of the first lens L1 to the imaging surface S14 of the optical imaging system 10 on the optical axis
  • etal is the thickness of the maximum effective semi-aperture of the first lens L1 to the fifth lens L5 in the direction of the optical axis Sum.
  • controlling the above ratio within a reasonable range is conducive to effectively shortening the overall length of the optical imaging system 10, thereby compressing the overall length of the optical imaging system 10 and making the lens structure more compact;
  • the miniaturization and thinning of the optical imaging system 10 can be achieved while satisfying high pixels and high imaging quality.
  • the optical imaging system 10 satisfies the following relationship:
  • Imgh is half of the image height corresponding to the maximum angle of view of the optical imaging system 10
  • sd51 is the maximum effective half-diameter of the object side surface S10 of the fifth lens L5.
  • the optical imaging system 10 satisfies the following relationship:
  • sd51 is the maximum effective semi-diameter of the object side S10 of the fifth lens L5
  • at1 is the sum of the distances on the optical axis of the air gaps between the two adjacent lenses in the first lens L1 to the fifth lens L5 .
  • the aperture of the fifth lens L5 is too large, which increases the material cost and reduces the stability of the lens on the one hand, and on the other hand, the deflection angle of the edge light on the object side S10 of the fifth lens L5 is too large , reducing the resolving power; when sd51/atl ⁇ 2, the sum of the thicknesses in the air gap is too large, which is not conducive to reducing the total optical length and realizing the miniaturization of the entire optical imaging system 10 .
  • the optical imaging system 10 satisfies the following relationship:
  • BF is the minimum distance from the image side S11 of the fifth lens L5 to the imaging surface S14 of the optical imaging system 10 in the direction of the optical axis
  • et52 is the maximum effective half-aperture of the image side S11 of the fifth lens L5 and the filter L6 The distance between the air gaps on the optical axis.
  • the back focus can be maintained at about 0.8mm, which can ensure good matching with the photosensitive chip.
  • the distance from the edge of the image side S11 of the fifth lens L5 to the filter L6 Reasonable control is also conducive to more reasonable convergence of light to the imaging surface S14, which helps to control aberrations, improve resolution, and improve imaging quality.
  • BFL/et52 ⁇ 1 the configuration of the two parameters is unreasonable, which will easily lead to excessive light deflection angle, poor light convergence effect, destroy the correction of aberrations, and affect the imaging quality.
  • the optical imaging system 10 of the first embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is convex at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is concave at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is concave at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is convex near the circumference
  • the object side S10 of the fifth lens L5 is convex near the circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the first embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the distance from the object side of the first lens to the optical imaging system 10 The distance of the imaging plane on the optical axis.
  • the surface of the lens of the optical imaging system 10 may be aspherical.
  • the aspherical equation of the aspherical surface is:
  • Z represents the height of the lens surface parallel to the Z axis
  • r represents the radial distance from the vertex
  • c represents the curvature of the surface at the vertex
  • k represents the conic constant
  • A4, A6, A8, A10, and A12 represent the 4th order, respectively.
  • the object side and the image side of the first lens to the fifth lens are all aspherical surfaces, and the conic constant k and aspherical surface coefficient corresponding to the surface of each aspherical surface are shown in Table 2.
  • FIG. 4 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve represents that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 20 of the second embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is convex at the near optical axis
  • the image side S5 of the second lens L2 is concave at the near optical axis
  • the object side S6 of the third lens L3 is convex at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is concave at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length in the second embodiment is 555 nm
  • the reference wavelength of the refractive index and the Abbe number are both 587.56 nm
  • the optical imaging system 10 in the second embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 6 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve represents that light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm is imaged through the optical imaging system.
  • the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 30 of the third embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is convex at the near optical axis
  • the image side S5 of the second lens L2 is concave at the near optical axis
  • the object side S6 of the third lens L3 is convex at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is convex at the near circumference
  • the second lens L2 is convex at the near circumference.
  • the image side S5 is concave at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the third embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 8 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve indicates that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 40 of the fourth embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is concave at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is concave at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the fourth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 10 shows longitudinal spherical aberration curves, astigmatism curves and distortion curves of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curves represent that light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 50 of the fifth embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is concave at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the fifth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 12 shows longitudinal spherical aberration curves, astigmatism curves and distortion curves of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curves indicate that light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 60 of the sixth embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is concave at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is convex at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is concave at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the sixth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 14 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve indicates that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 60 of the seventh embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is concave at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 of the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the sixth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 16 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve indicates that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 60 of the eighth embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is convex at the near optical axis
  • the first lens L1 is concave at the near optical axis.
  • the image side S5 of the second lens L2 is convex at the near optical axis; the object side S6 of the third lens L3 is concave at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis; the fourth lens
  • the object side S8 of the L4 is concave at the near optical axis, the image side S9 of the fourth lens L4 is convex at the near optical axis;
  • the object side S10 of the fifth lens L5 is convex at the near optical axis, and the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is convex near the circumference
  • the image side S2 of the first lens L1 is convex near the circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the image of the second lens L2 is concave at the near circumference.
  • the side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the image side S9 of the fourth lens L4 is concave at the near circumference; the object side S10 of the fifth lens L5 is convex at the near circumference, and the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the eighth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 18 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve indicates that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • the optical imaging system 60 of the ninth embodiment sequentially includes a first lens L1 with positive refractive power, a diaphragm STO, a second lens L2 with positive refractive power, and a negative refractive power from the object side to the image side.
  • the object side S1 of the first lens L1 is convex at the near optical axis
  • the image side S2 of the first lens L1 is concave at the near optical axis
  • the object side S4 of the second lens L2 is concave at the near optical axis
  • the image side S5 of the second lens L2 is convex at the near optical axis
  • the object side S6 of the third lens L3 is concave at the near optical axis
  • the image side S7 of the third lens L3 is concave at the near optical axis
  • the object side S8 of the lens L4 is concave at the near optical axis
  • the image side S9 of the fourth lens L4 is convex at the near optical axis
  • the object side S10 of the fifth lens L5 is convex at the near optical axis
  • the fifth lens L5 is convex at the near optical axis.
  • the image side S11 is concave at the near optical axis.
  • the object side S1 of the first lens L1 is concave at the near circumference
  • the image side S2 of the first lens L1 is convex at the near circumference
  • the object side S4 of the second lens L2 is concave at the near circumference
  • the second lens L2 is concave at the near circumference.
  • the image side S5 is convex at the near circumference
  • the object side S6 of the third lens L3 is concave at the near circumference
  • the image side S7 of the third lens L3 is convex at the near circumference
  • the object side S8 of the fourth lens L4 is near the circumference.
  • the circumference is concave
  • the image side S9 of the fourth lens L4 is concave at the near circumference
  • the object side S10 of the fifth lens L5 is convex at the near circumference
  • the image side S11 of the fifth lens L5 is concave at the near circumference.
  • the reference wavelength of the focal length is 555 nm
  • the reference wavelengths of the refractive index and Abbe number are both 587.56 nm
  • the optical imaging system 10 in the ninth embodiment satisfies the conditions in the following table.
  • f is the focal length of the optical imaging system 10
  • FNO is the aperture number of the optical imaging system 10
  • FOV is the maximum field angle of the optical imaging system 10
  • TTL is the imaging from the object side of the first lens to the optical imaging system The distance of the face on the optical axis.
  • FIG. 20 shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging system 10 according to the embodiment of the present application, wherein the longitudinal spherical aberration curve indicates that the light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and 470 nm respectively passes through the optical imaging After each lens of the system 10, the deviation of the focus point is less than 0.05mm, indicating that the imaging quality of the embodiment of the application is good; the reference wavelength of astigmatism and distortion is 555nm, and the astigmatism curve represents the curvature of the meridional image plane and the sagittal image.
  • Table 20 shows
  • Embodiment 2 0.276 1.27 1.14 3.75 3.07 Embodiment 3 0.229 1.21 1.10 9.18 3.17 Embodiment 4 0.201 2.65 1.16 19.94 3.02 Embodiment 5 0.282 2.09 1.13 5.28 2.60 Embodiment 6 0.290 3.29 1.05 4.90 2.72 Embodiment 7 0.222 1.96 1.12 12.42 2.23 Embodiment 8 0.234 2.63 1.16 4.24 1.36 Embodiment 9 0.223 1.79 1.11 5.28 2.18 Example TTL/etal
  • the imaging module 100 includes an optical imaging system 10 and a photosensitive element 20 , and the photosensitive element 20 is disposed on the image side of the optical imaging system 10 .
  • the photosensitive element 20 can be a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled device (CCD, Charge-coupled Device).
  • CMOS complementary metal oxide semiconductor
  • CCD Charge-coupled Device
  • the electronic device 1000 includes a casing 200 and an imaging module 100 , and the imaging module 100 is installed on the casing 200 for acquiring images.
  • the electronic device 1000 in the embodiment of the present application includes, but is not limited to, a smartphone, a car camera lens, a monitoring lens, a tablet computer, a notebook computer, an electronic book reader, a portable multimedia player (PMP), a portable phone, a video phone, Imaging-enabled electronic devices such as digital still cameras, mobile medical devices, wearable devices, etc.
  • PMP portable multimedia player

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Abstract

一种光学成像系统（10）、取像模组（100）及电子装置（1000）。光学成像系统（10）包括：具有正屈折力的第一透镜（L1）；具有屈折力的第二透镜（L2）；具有负屈折力的第三透镜（L3）；具有正屈折力的第四透镜（L4）；具有负屈折力的第五透镜（L5），第五透镜（L5）物侧面（S10）与像侧面（S11)均为非球面；光学成像系统（10）满足以下关系式：1.2<|f3/f|<4.2；其中，f3为第三透镜（L3）的有效焦距，f为光学成像系统（10）的有效焦距。光学成像系统（10）通过合理配置各透镜的曲折力、面型，在实现大光圈和高像素特点的基础上，可进一步缩短光学成像系统（10）的总长和镜头的头部口径以实现镜头的小型化，提高了屏占比，实现了全面屏的效果。

Description

光学成像系统、取像模组及电子装置 技术领域
本申请涉及光学成像技术，特别涉及一种光学成像系统、取像模组和电子装置。
背景技术
近十几年里，智能手机、平板、摄像机等电子产品的制造技术飞速发展，其应用也越来越普及，且呈现一种多样化多元化的发展趋势，其中搭载镜头的智能手机、平板等电子产品也愈加倾向轻薄化、便携化和小型化。
在一定程度上，镜头的厚度决定了整个电子产品的厚度，所以减小镜头厚度成为使电子产品实现轻薄化的主要方式。在实现本申请的过程中，发明人发现现有技术存在以下问题：目前的大部分电子产品的前摄像头口径较大，会占用整个屏幕的部分面积，使得显示屏部分面积有限，尽管市面出现了将摄像头作成刘海形式的方式来增大显示屏面积，但始终不能实现手机搭载前摄像头同时具有全面屏效果。
发明内容
鉴于以上内容，有必要提出一种光学成像系统、取像模组和电子装置，以解决上述问题。
本申请的实施例提出一种光学成像系统，由物侧到像侧依次包括：
具有正屈折力的第一透镜，所述第一透镜的物侧面在近光轴处为凸面，所述第一透镜的像侧面在近光轴处为凹面；
具有屈折力的第二透镜；
具有负屈折力的第三透镜；
具有正屈折力的第四透镜，所述第四透镜的物侧面在近光轴处为凹面，所述第四透镜的像侧面在近光轴处为凸面；
具有负屈折力的第五透镜，所述第五透镜的物侧面在近光轴处为凸面，所述第五透镜的像侧面在近光轴处为凹面，所述第五透镜的物侧面与像侧面皆为非球面；
所述光学成像系统满足以下关系式：
1.2<|f3/f|<4.2；
其中，f3为所述第三透镜的有效焦距，f为所述光学成像系统的有效焦距。
上述的光学成像系统通过合理配置各透镜的曲折力、面型，在实现大光圈和高像素特点的基础上，可进一步缩短光学成像系统的总长和镜头的头部口径以实现镜头的小型化，提高了屏占比，进而推进并实现全面屏的效果。另外，第三透镜产生的像差可极力压缩，进而提升像质，降低组装敏感度。
在一些实施例中，所述光学成像系统满足以下关系式：
|sag51m-sag51s|/(sd51m-sd51s)>0.2；
其中，所述第五透镜的物侧面与光轴有一第一交点，所述第五透镜的物侧面的有效径内各点的切面与垂直于光轴的平面相交形成锐角夹角，sag51m为所述锐角夹角最大的点至所述第一交点在光轴方向上的距离；所述第一交点至所述第五透镜的物侧面的最大有效半口径距所述第一交点四分之一处有一第二交点，sag51s为所述第一交点到所述第二交点在光轴方向上的距离；sd51m为所述锐角夹角最大的点处的半口径；sd51s为所述第二交点处的半口径。
通过将上述比值控制在合理的范围内，可以保证第五透镜的物侧面的面型由透镜中心向物侧面延伸，有利于减小第五透镜的透镜成型难度，另外还可有效避免内反光线导致成像面产生鬼像，减少出现杂光的可能性，进而大幅度提升成像质量。当该值小于0.2时，会增大鬼像风险，影响像质。
在一些实施例中，所述光学成像系统满足以下关系式：
1<et3/(et23+et34)<4.2；
其中，et3为所述第三透镜的最大有效半口径于光轴方向上的厚度，et23为所述第二透镜的像侧面的最大有效径处至所述第三透镜的物侧面的最大有效径处于光轴方向上的距离，et34为所述第三透镜的像侧面的最大有效径处与所述第四透镜的物侧面的最大有效径处于光轴方向上的距离。
通过合理控制上述的比值，有利于合理压缩中间三个镜片的厚度和空气间隙、控制中间三个镜片的相对位置，从而有效缩短光学成像系统的总长，实现光学成像系统的小型化。当et3/(et23+et34)≥4.2时，第三透镜的边缘厚度过大，与前后两透镜太过接近，会引起镜片组装难度和镜片之间碰撞破损可能性增加；当et3/(et23+et34)≤1时，不利于缩短光学成像系统的总长。
在一些实施例中，所述光学成像系统满足以下关系式：
(sd21+sd22)/(sd11+sd12)≥1.05；
其中，sd21为所述第二透镜的物侧面的最大有效半口径，sd22为所述第二透镜的像侧面的最大有效半口径，sd11为所述第一透镜的物侧面的最大有效半口径，sd12为所述第一透镜的像侧面的最大有效半口径。
通过合理配置上述的比值，有利于在保证大视场角、大像面和结构小型化的基础上实现小头部的特性。当(sd21+sd22)/(sd11+sd12)<1.05时，第一透镜的口径接近或者大于第二透镜，不利于光学成像系统获得小头部特性。
在一些实施例中，所述光学成像系统满足以下关系式：
3.5<f5/sag51<20.5；
其中，f5为所述第五透镜的有效焦距；sag51为所述第五透镜的物侧面在光轴上的交点至所述第五透镜的物侧面的最大有效半口径处在光轴方向的距离。
如此，第五透镜具有至少一个反曲点，有利于修正前透镜组产生的畸变、场曲，使靠近成像面的屈折力配置较为均匀；另外满足上式时，可合理控制透镜在垂直方向的屈折力与矢 高，可避免透镜过薄与过厚，减小光线在成像面上的入射角，降低光学成像系统整体的光学敏感性，使之获得更高的稳定性。
在一些实施例中，所述光学成像系统满足以下关系式：
1.2<sag4|/et4<3.2；
其中，sag42为所述第四透镜的像侧面在光轴上的交点至所述第四透镜的像侧面的最大有效半径位置在光轴方向的距离，et4为所述第四透镜的最大有效半口径于光轴方向的厚度。
如此，通过将上述比值控制在合理的范围内，有利于平衡前透镜组产生的球差，提升光学成像系统整体的解像力，降低第四透镜的光学敏感度，另外第四透镜的像侧面的矢高的变化，使得第四透镜呈U形，保持中厚边厚差异合理的情况下为光线从前透镜组以较小角度入射到像面提供支持。
在一些实施例中，所述光学成像系统满足以下关系式：
1.7<TTL/etal<2.7；
其中，TTL为所述第一透镜的物侧面至所述光学成像系统的成像面在光轴上的距离，etal为所述第一透镜至所述第五透镜的最大有效半口径于光轴方向的厚度的总和。
如此，将上述比值控制在合理的范围内，有利于有效缩短光学成像系统的总长，进而可以压缩光学成像系统的整体长度，让透镜结构更为紧凑；通过合理配置镜片尺寸与屈折力，可在满足高像素和高成像质量下，实现光学成像系统的小型化、轻薄化。
在一些实施例中，所述光学成像系统满足以下关系式：
Imgh/sd51>4.2；
其中，Imgh为所述光学成像系统的最大视场角所对应的像高的一半，sd51为所述第五透镜的物侧面的最大有效半口径。
如此，通过将上述比值控制在合理范围内，一方面可以获得大成像面，实现高像素成像，另一方面可使光学成像系统更具小头部特性竞争力。当Imgh/sd51≤4.2时，不能匹配更高像素的芯片，无法实现高清成像，降低了用户体验感。
在一些实施例中，所述光学成像系统满足以下关系式：
1.9<sd51/atl<4
其中，sd51为所述第五透镜的物侧面的最大有效半口径，atl为所述第一透镜至所述第五透镜中的相邻的两个透镜之间的空气间隙在光轴上的距离的总和。
如此，通过将上述比值控制在合理范围内，有利于实现光学成像系统的小型化。当sd51/atl≥4时，第五透镜的口径过大，一方面增加材料成本和降低镜片稳定性，另一方面会使得第五透镜的物侧面上的边缘光线偏折角度过大，降低解析力；当sd51/atl≤2时，空气间隙中厚总和过大，不利于减小光学总长，实现整个光学成像系统的小型化。
在一些实施例中，所述光学成像系统满足以下关系式：
BF/et52>1；
其中，BF为所述第五透镜的像侧面至所述光学成像系统的成像面在光轴方向的最小距离，et52为所述第五透镜的像侧面的最大有效半口径处与滤光片之间的空气间隙在光轴上的 距离。
如此，通过将上述比值控制在合理范围内，可使后焦保持在0.8mm左右，可确保与感光芯片具有良好的匹配性，第五透镜的像侧面边缘到滤光片的距离的合理控制也有利于光线更加合理的向成像面会聚，有助于控制像差和提升解像力，提高成像品质。当BFL/et52≤1时，两参数配置不合理，易导致光线偏转角过大，光线会聚效果差，破坏像差的校正，影响成像质量。
本申请的实施例还提出了一种取像模组，包括：
光学成像系统；及
感光元件，所述感光元件设置于所述光学成像系统的像侧。
本申请实施例的取像模组中的光学成像系统通过合理配置各透镜的曲折力、面型，在实现大光圈和高像素特点的基础上，可进一步缩短光学成像系统的总长和镜头的头部口径以实现镜头的小型化，提高了屏占比，进而推进并实现全面屏的效果。另外，第三透镜产生的像差可极力压缩，进而提升像质，降低组装敏感度。
本申请的实施例提出一种电子装置，包括：壳体和上述实施例的取像模组，所述取像模组安装在所述壳体上。
本申请实施例的电子装置包括取像模组，所述取像模组中的光学成像系统通过合理配置各透镜的曲折力、面型，在实现大光圈和高像素特点的基础上，可进一步缩短光学成像系统的总长和镜头的头部口径以实现镜头的小型化，提高了屏占比，进而推进并实现全面屏的效果。另外，第三透镜产生的像差可极力压缩，进而提升像质，降低组装敏感度。
附图说明
本申请的上述和/或附加的方面和优点可以从结合下面附图对实施例的描述中变得明显和容易理解，其中：
图1是本申请第一实施例的光学成像系统中第五透镜的结构示意图。
图2是是本申请第二实施例的光学成像系统中第一透镜至第五透镜的结构示意图。
图3是本申请第一实施例的光学成像系统的结构示意图。
图4是本申请第一实施例中光学成像系统的球差、像散和畸变曲线图。
图5是本申请第二实施例的光学成像系统的结构示意图。
图6是本申请第二实施例中光学成像系统的球差、像散和畸变曲线图。
图7是本申请第三实施例的光学成像系统的结构示意图。
图8是本申请第三实施例中光学成像系统的球差、像散和畸变曲线图。
图9是本申请第四实施例的光学成像系统的结构示意图。
图10是本申请第四实施例中光学成像系统的球差、像散和畸变曲线图。
图11是本申请第五实施例的光学成像系统的结构示意图。
图12是本申请第五实施例中光学成像系统的球差、像散和畸变曲线图。
图13是本申请第六实施例的光学成像系统的结构示意图。
图14是本申请第六实施例中光学成像系统的球差、像散和畸变曲线图。
图15是本申请第七实施例的光学成像系统的结构示意图。
图16是本申请第七实施例中光学成像系统的球差、像散和畸变曲线图。
图17是本申请第八实施例的光学成像系统的结构示意图。
图18是本申请第八实施例中光学成像系统的球差、像散和畸变曲线图。
图19是本申请第九实施例的光学成像系统的结构示意图。
图20是本申请第九实施例中光学成像系统的球差、像散和畸变曲线图。
图21是本申请实施例的电子装置的结构示意图。
主要元件符号说明
电子装置                      1000
取像模组                      100
光学成像系统                  10
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
红外滤光片                    L6
光阑                          STO
物侧面                        S1、S4、S6、S8、S10、S12
像侧面                        S2、S5、S7、S9、S11、S13
成像面                        S14
感光元件                      20
壳体                          200
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描 述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1至图3，本申请实施例的光学成像系统10由物侧到像侧依次包括具有正屈折力的第一透镜L1、具有屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4及具有负屈折力的第五透镜L5。
第一透镜L1具有物侧面S1及像侧面S2；第二透镜L2具有物侧面S4及像侧面S5；第三透镜L3具有物侧面S6及像侧面S7，第四透镜L4具有物侧面S8及像侧面S9，第四透镜L4的物侧面S8在近光轴处为凸面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5具有物侧面S10及像侧面S11。
光学成像系统10满足以下关系式：
1.2<|f3/f|<4.2；
其中，f3为第三透镜L3的有效焦距，f为光学成像系统10的有效焦距。
上述的光学成像系统10通过合理配置各透镜的曲折力、面型，在实现大光圈和高像素特点的基础上，可进一步缩短光学成像系统10的总长和镜头的头部口径以实现镜头的小型化，提高了屏占比，进而推进并实现全面屏的效果。另外，第三透镜L3产生的像差可极力压缩，进而提升像质，降低组装敏感度。
在一些实施例中，光学成像系统10还包括光阑STO。光阑STO可以设置在第一透镜L1之前、第五透镜L5之后、任意两个透镜之间或任意一个透镜的表面上。光阑STO用以减少 杂散光，有助于提升影像质量。优选的，光阑STO设置于第一透镜L1的物侧面S2。
在一些实施例中，光学成像系统10还包括红外滤光片L6，红外滤光片L6具有物侧面S12及像侧面S13。红外滤光片L6设置在第五透镜L6的像侧，红外滤光片L6用于过滤成像的光线，具体用于隔绝红外光，防止红外光被感光元件接收，从而防止红外光对正常影像的色彩与清晰度造成影响，进而提高成像镜头10的成像品质。优选地，红外滤光片L6为红外截止滤光片。
在一些实施例中，光学成像系统10满足以下关系式：
|sag51m-sag51s|/(sd51m-sd51s)>0.2；
其中，第五透镜L5的物侧面S10与光轴有一第一交点，第五透镜L5的物侧面S10的有效径内各点的切面与垂直于光轴的平面相交形成锐角夹角，在图1中，第五透镜L5的物侧面S10与光轴有一第一交点A，第五透镜L5的物侧面S10为曲面，理论上其拥有无数互不平行的切面，第五透镜L5的物侧面S10的有效径内各点的切面L与垂直于光轴的平面相交形成锐角夹角，锐角夹角最大的点为B，sag51m为锐角夹角最大的点B至第一交点A在光轴方向上的距离；第一交点A至第五透镜L5的物侧面S10的最大有效半口径距第一交点四分之一处有一第二交点C，sag51s为第一交点A到第二交点C在光轴方向上的距离；sd51m为锐角夹角最大的点B处的半口径；sd51s为第二交点C处的半口径。
通过将上述比值控制在合理的范围内，可以保证第五透镜L5的物侧面S10的面型由透镜中心向物侧面延伸，有利于减小第五透镜L5的透镜成型难度，另外还可有效避免内反光线导致成像面S14产生鬼像，减少出现杂光的可能性，进而大幅度提升成像质量。当该值小于0.2时，会增大鬼像风险，影响像质。
在一些实施例中，光学成像系统10满足以下关系式：
1<et3/(et23+et34)<4.2；
其中，图2中所示，et1为第一透镜L1的最大有效半口径于光轴方向上的厚度，et2为第二透镜L2的最大有效半口径于光轴方向上的厚度，et3为第三透镜L3的最大有效半口径于光轴方向上的厚度，et4为第四透镜L4的最大有效半口径于光轴方向上的厚度，et5为第五透镜L5的最大有效半口径于光轴方向上的厚度，et23为第二透镜L2的像侧面S5的最大有效径处至第三透镜L3的物侧面S6的最大有效径处于光轴方向上的距离，et34为第三透镜L3的像侧面S7的最大有效径处与第四透镜L4的物侧面S8的最大有效径处于光轴方向上的距离，et52为第五透镜L5的像侧面S11的最大有效半口径处与滤光片L6之间的空气间隙在光轴上的距离，etal为第一透镜L1至第五透镜L5的最大有效半口径于光轴方向的厚度的总和，也即et1、et2、et3、et4及et5的总和。其中透镜包括有效径和非有效径，从外界入射的光线可经过透镜有效径，最终到达感光元件；非有效径主要用于承靠在镜筒内。
通过合理控制上述的比值，有利于合理压缩中间三个镜片的厚度和空气间隙、控制中间三个镜片的相对位置，从而有效缩短光学成像系统10的总长，实现光学成像系统10的小型化。当et3/(et23+et34)≥4.2时，第三透镜L3的边缘厚度过大，与前后两透镜太过接近，会引起镜片组装难度和镜片之间碰撞破损可能性增加；当et3/(et23+et34)≤1时，不利于缩短光学 成像系统10的总长。
在一些实施例中，光学成像系统10满足以下关系式：
(sd21+sd22)/(sd11+sd12)≥1.05；
其中，sd21为第二透镜L2的物侧面S4的最大有效半口径，sd22为第二透镜L2的像侧面S5的最大有效半口径，sd11为第一透镜L1的物侧面S1的最大有效半口径，sd12为第一透镜L1的像侧面S2的最大有效半口径。
通过合理配置上述的比值，有利于在保证大视场角、大像面和结构小型化的基础上实现小头部的特性。当(sd21+sd22)/(sd11+sd12)<1.05时，第一透镜L1的口径接近或者大于第二透镜L2，不利于光学成像系统10获得小头部特性。
在一些实施例中，光学成像系统10满足以下关系式：
3.5<f5/sag51<20.5；
其中，f5为第五透镜L5的有效焦距；sag51为第五透镜L5的物侧面S10在光轴上的交点至第五透镜L5的物侧面S10的最大有效半口径处在光轴方向的距离。
如此，第五透镜L5具有至少一个反曲点，有利于修正前透镜组产生的畸变、场曲，使靠近成像面S14的屈折力配置较为均匀；另外满足上式时，可合理控制透镜在垂直方向的屈折力与矢高，可避免透镜过薄与过厚，减小光线在成像面S14上的入射角，降低光学成像系统10整体的光学敏感性，使之获得更高的稳定性。
在一些实施例中，光学成像系统10满足以下关系式：
1.2<sag4/et4<3.2；
其中，sag42为第四透镜L4的像侧面S9在光轴上的交点至第四透镜L4的像侧面S9的最大有效半径位置在光轴方向的距离，et4为第四透镜L4的最大有效半口径于光轴方向的厚度。
如此，通过将上述比值控制在合理的范围内，有利于平衡前透镜组产生的球差，提升光学成像系统10整体的解像力，降低第四透镜L4的光学敏感度，另外第四透镜L4的像侧面S9的矢高的变化，使得第四透镜L4呈U形，保持中厚边厚差异合理的情况下为光线从前透镜组以较小角度入射到像面提供支持。
在一些实施例中，光学成像系统10满足以下关系式：
1.7<TTL/etal<2.7；
其中，TTL为第一透镜L1的物侧面S1至光学成像系统10的成像面S14在光轴上的距离，etal为第一透镜L1至第五透镜L5的最大有效半口径于光轴方向的厚度的总和。
如此，将上述比值控制在合理的范围内，有利于有效缩短光学成像系统10的总长，进而可以压缩光学成像系统10的整体长度，让透镜结构更为紧凑；通过合理配置镜片尺寸与屈折力，可在满足高像素和高成像质量下，实现光学成像系统10的小型化、轻薄化。
在一些实施例中，光学成像系统10满足以下关系式：
Imgh/sd51>4.2；
其中，Imgh为光学成像系统10的最大视场角所对应的像高的一半，sd51为第五透镜L5 的物侧面S10的最大有效半口径。
如此，通过将上述比值控制在合理范围内，一方面可以获得大成像面S14，实现高像素成像，另一方面可使光学成像系统10更具小头部特性竞争力。当Imgh/sd51≤4.2时，不能匹配更高像素的芯片，无法实现高清成像，降低了用户体验感。
在一些实施例中，光学成像系统10满足以下关系式：
1.9<sd51/atl<4；
其中，sd51为第五透镜L5的物侧面S10的最大有效半口径，atl为第一透镜L1至第五透镜L5中的相邻的两个透镜之间的空气间隙在光轴上的距离的总和。
如此，通过将上述比值控制在合理范围内，有利于实现光学成像系统10的小型化。当sd51/atl≥4时，第五透镜L5的口径过大，一方面增加材料成本和降低镜片稳定性，另一方面会使得第五透镜L5的物侧面S10上的边缘光线偏折角度过大，降低解析力；当sd51/atl≤2时，空气间隙中厚总和过大，不利于减小光学总长，实现整个光学成像系统10的小型化。
在一些实施例中，光学成像系统10满足以下关系式：
BF/et52>1；
其中，BF为第五透镜L5的像侧面S11至光学成像系统10的成像面S14在光轴方向的最小距离，et52为第五透镜L5的像侧面S11的最大有效半口径处与滤光片L6之间的空气间隙在光轴上的距离。
如此，通过将上述比值控制在合理范围内，可使后焦保持在0.8mm左右，可确保与感光芯片具有良好的匹配性，第五透镜L5的像侧面S11边缘到滤光片L6的距离的合理控制也有利于光线更加合理的向成像面S14会聚，有助于控制像差和提升解像力，提高成像品质。当BFL/et52≤1时，两参数配置不合理，易导致光线偏转角过大，光线会聚效果差，破坏像差的校正，影响成像质量。
第一实施例
请参照图3，第一实施例的光学成像系统10由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凸面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凹面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凹面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凸 面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第一实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第一实施例中的光学成像系统10满足下面表格的条件。
表1
Figure PCTCN2020132469-appb-000001
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统10的成像面在光轴上的距离。
表2
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -13.2044 0.5111 -1.0215 1.1705 4.0952 -22.9912 41.7697 -27.8568 0.0000 0.0000
2 -42.7009 0.0330 -0.2542 0.7585 -5.4087 16.6344 -25.3588 12.8844 0.0000 0.0000
4 -99.0000 -0.0890 -0.2623 0.2145 -2.1569 4.4323 -5.1165 0.0000 0.0000 0.0000
5 99.0000 -0.2502 0.4970 -4.1071 14.7893 -39.4709 59.3161 -35.1619 0.0000 0.0000
6 3.7053 -0.6914 2.0256 -15.6795 79.6490 -258.3099 487.3575 -475.1910 183.9394 0.0000
7 -58.1689 -0.5475 1.4358 -5.4528 15.4462 -29.1399 33.8126 -21.0037 5.0520 0.1962
8 21.4897 -0.1770 0.6883 -3.0042 8.8036 -16.6310 19.7904 -14.3338 5.8591 -1.0606
9 -4.2987 -0.5507 1.2400 -2.2223 2.4938 -1.4521 0.2961 0.0582 -0.0145 -0.0049
10 -45.1416 -0.2257 0.2165 -0.3243 0.3797 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.8847 -0.1325 0.0799 -0.0421 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
需要说明的是，光学成像系统10的透镜的表面可能是非球面，对于这些非球面的表面，非球面表面的非球面方程为：
Figure PCTCN2020132469-appb-000002
其中，Z表示透镜面中与Z轴平行的高度，r表示从顶点起的径向距离，c表示顶点处表面的曲率，k表示圆锥常数，A4、A6、A8、A10、A12分别表示4阶、6阶、8阶、10阶、12阶对应阶次的非球面系数。在本申请实施例中，第一透镜至第五透镜的物侧面和像侧面均为非球面，各非球面的表面对应的圆锥常数k和非球面系数如表格2所示。
图4示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第二实施例
请参照图5，第二实施例的光学成像系统20由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凸面，第二透镜L2的像侧面S5在近光轴处为凹面；第三透镜L3的物侧面S6在近光轴处为凸面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凹面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第二实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第二实施例中的光学成像系统10满足下面表格的条件。
表3
Figure PCTCN2020132469-appb-000003
Figure PCTCN2020132469-appb-000004
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表4
K A4 A6 A8 A10 A12 A14 A16 A18 A20
-15.0020 0.5011 -1.0641 1.0664 4.0364 -22.7357 42.2896 -29.6127 0.0000 0.0000
-29.2809 0.0348 -0.2835 0.7196 -5.5552 15.9679 -26.4050 21.2575 0.0000 0.0000
52.4502 -0.0293 -0.2972 0.2391 -1.9285 4.5116 -4.7556 0.0000 0.0000 0.0000
-99.0000 -0.2128 0.5314 -4.0278 14.9991 -39.2236 59.3085 -35.6657 0.0000 0.0000
-58.0801 -0.6765 2.0733 -15.6392 79.6393 -258.3356 487.4080 -475.0222 183.6179 0.0000
-2.4830 -0.5370 1.4170 -5.4490 15.4594 -29.1343 33.8017 -21.0278 5.0315 0.2118
19.4085 -0.1747 0.7409 -2.9862 8.7864 -16.6571 19.7715 -14.3398 5.8661 -1.0424
-4.3495 -0.5455 1.2321 -2.2282 2.4923 -1.4518 0.2966 0.0585 -0.0144 -0.0048
-39.8430 -0.2260 0.2163 -0.3243 0.3797 -0.2708 0.1149 -0.0284 0.0038 -0.0002
-4.5913 -0.1340 0.0801 -0.0422 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图6示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第三实施例
请参照图7，第三实施例的光学成像系统30由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凸面，第二透镜L2的像侧面S5在近光轴处为凹面；第三透镜L3的物侧面S6在近光轴处为凸面，第三透镜L3的像侧面S7在近光轴 处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凸面，第二透镜L2的像侧面S5在近圆周处为凹面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第三实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第三实施例中的光学成像系统10满足下面表格的条件。
表5
Figure PCTCN2020132469-appb-000005
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表6
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -9.1855 0.5959 -1.0298 0.9925 4.0619 -22.2910 43.0686 -31.8955 0.0000 0.0000
2 -17.3798 0.0467 -0.2733 0.9739 -5.0787 15.8063 -30.2790 25.3633 0.0000 0.0000
4 -40.0244 -0.1419 -0.0030 0.1158 -1.7332 8.8867 -9.1018 0.0000 0.0000 0.0000
5 99.0000 -0.2442 0.5816 -3.7570 15.7566 -38.9208 57.3574 -35.5530 0.0000 0.0000
6 -99.0000 -0.6009 2.0040 -15.4598 79.7787 -258.7303 486.2993 -476.2981 184.2815 0.0000
7 7.0336 -0.5416 1.4526 -5.4858 15.4283 -29.1366 33.8222 -21.0031 5.0369 0.1685
8 4.8486 -0.1394 0.7002 -2.9779 8.8260 -16.6416 19.7641 -14.3522 5.8596 -1.0405
9 -5.2699 -0.5470 1.2546 -2.2248 2.4883 -1.4548 0.2955 0.0583 -0.0142 -0.0047
10 -33.3619 -0.2249 0.2171 -0.3243 0.3797 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.6491 -0.1394 0.0812 -0.0424 0.0171 -0.0050 0.0009 -0.0001 0.0000 0.0000
图8示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第四实施例
请参照图9，第四实施例的光学成像系统40由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凹面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凹面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第四实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第四实施例中的光学成像系统10满足下面表格的条件。
表7
Figure PCTCN2020132469-appb-000006
Figure PCTCN2020132469-appb-000007
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表8
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -11.5320 0.5570 -0.9956 1.1429 4.0988 -22.7728 42.1383 -28.8823 0.0000 0.0000
2 -19.5007 0.0509 -0.2370 0.7683 -5.3733 16.7998 -25.5481 8.4590 0.0000 0.0000
4 73.8717 -0.1203 -0.3132 0.1586 -2.0557 4.7081 -7.9522 0.0000 0.0000 0.0000
5 41.4003 -0.2647 0.4728 -4.0858 14.8218 -39.4467 59.3749 -34.7311 0.0000 0.0000
6 10.9773 -0.6913 2.0712 -15.7000 79.6084 -258.2984 487.4863 -475.0561 183.5828 0.0000
7 -99.0000 -0.5712 1.4304 -5.4676 15.4329 -29.1458 33.8124 -21.0016 5.0550 0.2001
8 11.4397 -0.1597 0.6283 -3.0246 8.8273 -16.6122 19.7944 -14.3372 5.8565 -1.0571
9 -5.2968 -0.6046 1.2540 -2.2064 2.5015 -1.4489 0.2973 0.0582 -0.0152 -0.0060
10 -19.5937 -0.2320 0.2173 -0.3240 0.3798 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.0155 -0.1361 0.0808 -0.0421 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图10示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第五实施例
请参照图11，第五实施例的光学成像系统50由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凹面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸 面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第五实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第五实施例中的光学成像系统10满足下面表格的条件。
表9
Figure PCTCN2020132469-appb-000008
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表10
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -10.7094 0.6162 -0.9541 1.1364 4.1799 -22.3164 42.8003 -31.5773 0.0000 0.0000
2 -4.5150 0.0723 -0.1632 1.1020 -5.4604 14.5951 -29.7071 25.4581 0.0000 0.0000
4 99.0000 -0.0881 -0.2412 -0.0324 -1.7242 7.6033 -18.9658 0.0000 0.0000 0.0000
5 27.3901 -0.2885 0.5256 -3.9994 14.8319 -39.6051 59.1477 -34.4510 0.0000 0.0000
6 38.7588 -0.7139 2.0447 -15.7086 79.6299 -258.2351 487.6041 -474.8592 183.8424 0.0000
7 39.2826 -0.5549 1.4223 -5.4718 15.4311 -29.1482 33.8089 -21.0049 5.0537 0.2019
8 12.1272 -0.1530 0.6807 -3.0043 8.8057 -16.6391 19.7778 -14.3422 5.8600 -1.0490
9 -4.1121 -0.5676 1.2415 -2.2178 2.4968 -1.4505 0.2968 0.0583 -0.0147 -0.0052
10 -61.9769 -0.2347 0.2180 -0.3238 0.3798 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.6816 -0.1333 0.0802 -0.0421 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图12示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光 学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第六实施例
请参照图13，第六实施例的光学成像系统60由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凹面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凸面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凹面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第六实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第六实施例中的光学成像系统10满足下面表格的条件。
表11
Figure PCTCN2020132469-appb-000009
Figure PCTCN2020132469-appb-000010
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表12
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -8.7714 0.6236 -0.9652 1.1315 4.1815 -22.5115 42.3113 -30.1412 0.0000 0.0000
2 -7.5301 0.0760 -0.1449 0.9884 -5.4671 15.7338 -27.0735 17.9805 0.0000 0.0000
4 -99.0000 -0.1063 -0.1210 -0.0125 -2.5416 5.2909 -5.3712 0.0000 0.0000 0.0000
5 23.0208 -0.2457 0.5513 -4.1000 14.8176 -39.0744 59.9131 -35.9071 0.0000 0.0000
6 -1.8233 -0.6767 2.0508 -16.0820 79.5852 -257.2200 489.4774 -475.0340 172.6777 0.0000
7 0.0000 -0.5097 1.4119 -5.4267 15.4556 -29.1482 33.8034 -21.0034 5.0588 0.1867
8 8.0525 -0.2348 0.7058 -2.9876 8.8528 -16.6039 19.7854 -14.3549 5.8413 -1.0586
9 -4.6897 -0.5756 1.2440 -2.2157 2.4957 -1.4520 0.2960 0.0581 -0.0147 -0.0052
10 -98.5546 -0.2313 0.2188 -0.3239 0.3798 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -5.0526 -0.1358 0.0807 -0.0421 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图14示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第七实施例
请参照图15，第七实施例的光学成像系统60由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凹面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的第五透镜L5的物侧面S10在近光轴处为凸面，像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第七实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第六实施例中的光学成像系统10满足下面表格的条件。
表13
Figure PCTCN2020132469-appb-000011
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表14
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -11.9735 0.5916 -0.9965 1.0811 4.1622 -22.3229 42.6235 -31.8943 0.0000 0.0000
2 -12.7374 0.0662 -0.1645 0.9834 -5.4774 15.5150 -27.3195 18.9121 0.0000 0.0000
4 99.0000 -0.1282 -0.2686 -0.0121 -2.4031 4.8134 -7.1537 0.0000 0.0000 0.0000
5 26.6220 -0.2434 0.4104 -4.1079 14.8635 -39.4714 59.1475 -34.2270 0.0000 0.0000
6 -9.2775 -0.6630 2.0763 -15.6407 79.6838 -258.2601 487.4688 -475.0229 183.8407 0.0000
7 99.0000 -0.5529 1.4482 -5.4564 15.4478 -29.1284 33.8270 -20.9971 5.0426 0.1656
8 10.3654 -0.1785 0.6382 -2.9878 8.8594 -16.6013 19.7875 -14.3512 5.8450 -1.0592
9 -5.6065 -0.5953 1.2562 -2.2075 2.4995 -1.4502 0.2968 0.0584 -0.0148 -0.0056
10 -19.6016 -0.2364 0.2173 -0.3240 0.3798 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.1814 -0.1363 0.0810 -0.0421 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图16示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第八实施例
请参照图17，第八实施例的光学成像系统60由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凸面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凸面，第一透镜L1像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第八实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第八实施例中的光学成像系统10满足下面表格的条件。
表15
Figure PCTCN2020132469-appb-000012
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表16
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -13.8962 0.5199 -1.0061 1.1545 4.0727 -22.8725 42.0306 -28.6914 0.0000 0.0000
2 -23.6032 0.0580 -0.2349 0.4388 -5.8098 18.0367 -20.6404 -3.9727 0.0000 0.0000
4 -23.4459 -0.0825 -0.3777 0.1981 -2.6627 3.0337 -5.0433 0.0000 0.0000 0.0000
5 99.0000 -0.2348 0.3915 -4.1880 14.7196 -39.5599 59.3770 -33.8530 0.0000 0.0000
6 -10.9449 -0.6599 2.0198 -15.6722 79.6693 -258.2482 487.4996 -475.0535 183.5803 0.0000
7 24.0096 -0.5200 1.4417 -5.4572 15.4294 -29.1717 33.7729 -21.0356 5.0509 0.2424
8 22.7863 -0.1060 0.7090 -3.0452 8.7513 -16.6630 19.7853 -14.3190 5.8829 -1.0387
9 -4.3753 -0.5258 1.2336 -2.2279 2.4924 -1.4520 0.2963 0.0583 -0.0143 -0.0047
10 -22.2020 -0.2268 0.2157 -0.3244 0.3798 -0.2707 0.1149 -0.0284 0.0038 -0.0002
11 -4.5058 -0.1288 0.0785 -0.0419 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图18示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
第九实施例
请参照图19，第九实施例的光学成像系统60由物侧到像侧依次包括具有正屈折力的第一透镜L1、光阑STO、具有正屈折力的第二透镜L2、具有负屈折力的第三透镜L3、具有正屈折力的第四透镜L4、具有负屈折力的第五透镜L5以及红外滤光片L6。
其中，第一透镜L1的物侧面S1在近光轴处为凸面，第一透镜L1的像侧面S2在近光轴处为凹面；第二透镜L2的物侧面S4在近光轴处为凹面，第二透镜L2的像侧面S5在近光轴处为凸面；第三透镜L3的物侧面S6在近光轴处为凹面，第三透镜L3的像侧面S7在近光轴处为凹面；第四透镜L4的物侧面S8在近光轴处为凹面，第四透镜L4的像侧面S9在近光轴处为凸面；第五透镜L5的物侧面S10在近光轴处为凸面，第五透镜L5的像侧面S11在近光轴处为凹面。
第一透镜L1的物侧面S1在近圆周处为凹面，第一透镜L1的像侧面S2在近圆周处为凸面；第二透镜L2的物侧面S4在近圆周处为凹面，第二透镜L2的像侧面S5在近圆周处为凸面；第三透镜L3的物侧面S6在近圆周处为凹面，第三透镜L3的像侧面S7在近圆周处为凸面；第四透镜L4的物侧面S8在近圆周处为凹面，第四透镜L4的像侧面S9在近圆周处为凹面；第五透镜L5的物侧面S10在近圆周处为凸面，第五透镜L5的像侧面S11在近圆周处为凹面。
第九实施例中焦距的参考波长为555nm，折射率和阿贝数的参考波长均为587.56nm，且第九实施例中的光学成像系统10满足下面表格的条件。
表17
Figure PCTCN2020132469-appb-000013
Figure PCTCN2020132469-appb-000014
需要说明的是，f为光学成像系统10的焦距，FNO为光学成像系统10的光圈数，FOV为光学成像系统10的最大视场角，TTL为第一透镜的物侧面到光学成像系统的成像面在光轴上的距离。
表18
面序号 K A4 A6 A8 A10 A12 A14 A16 A18 A20
1 -13.6204 0.5420 -1.0495 0.9826 3.9506 -22.5513 42.6935 -32.4178 0.0000 0.0000
2 -27.9747 0.0398 -0.2575 0.7441 -5.6461 15.6277 -26.9671 20.2891 0.0000 0.0000
4 -99.0000 -0.0506 -0.2398 0.1786 -2.3171 4.4275 -1.7863 0.0000 0.0000 0.0000
5 4.3984 -0.2108 0.4716 -4.0521 15.0931 -38.9740 59.5716 -35.9347 0.0000 0.0000
6 -58.3008 -0.6826 2.0189 -15.6020 79.7991 -258.1325 487.4636 -475.4093 182.7323 0.0000
7 -3.3899 -0.5537 1.4353 -5.4444 15.4539 -29.1380 33.8082 -21.0118 5.0441 0.1948
8 21.3750 -0.1878 0.7160 -2.9956 8.7963 -16.6419 19.7823 -14.3365 5.8630 -1.0493
9 -4.6499 -0.5424 1.2379 -2.2240 2.4935 -1.4519 0.2962 0.0583 -0.0144 -0.0048
10 -17.9411 -0.2271 0.2160 -0.3243 0.3797 -0.2708 0.1149 -0.0284 0.0038 -0.0002
11 -4.3318 -0.1345 0.0805 -0.0422 0.0172 -0.0050 0.0009 -0.0001 0.0000 0.0000
图20示出了本申请实施例的光学成像系统10的纵向球差曲线、像散曲线和畸变曲线，其中纵向球差曲线表示波长分别为650nm、610nm、555nm、510nm及470nm的光线经由光学成像系统10的各透镜后，会聚焦点偏离的数值均小于0.05mm，说明本申请实施例的成像质量较好；像散和畸变的参考波长为555nm，像散曲线表示子午像面弯曲和弧矢像面弯曲，其中弧失场曲和子午场曲的最大值均小于0.05mm，得到了较好的补偿；畸变曲线表示不同视场角对应的畸变大小值，其中最大畸变小于50％，畸变也得到了较好的校正。
表格20示出了第一实施例至第九实施例的光学成像系统10中|sag51m-sag51s|/(sd51m-sd51s)，et3/(et23+et34)，(sd21+sd22)/(sd11+sd12)，f5/sag51，|sag42|/et4，TTL/etal，|f3/f|，Imgh/sd11，sd51/atl和BF/et52的值。
表格19
实施例 |sag51m-sag51s|/(sd51m-sd51s) et3/(et23+et34) (sd21+sd22)/(sd11+sd12) f5/sag51 |sag42|/et4
实施例一 0.273 4.00 1.12 3.73 2.29
实施例二 0.276 1.27 1.14 3.75 3.07
实施例三 0.229 1.21 1.10 9.18 3.17
实施例四 0.201 2.65 1.16 19.94 3.02
实施例五 0.282 2.09 1.13 5.28 2.60
实施例六 0.290 3.29 1.05 4.90 2.72
实施例七 0.222 1.96 1.12 12.42 2.23
实施例八 0.234 2.63 1.16 4.24 1.36
实施例九 0.223 1.79 1.11 5.28 2.18
实施例 TTL/etal |f3/f| Imgh/sd51 sd51/atl BF/et52
实施例一 2.12 1.78 4.34 2.90 1.15
实施例二 2.27 4.04 4.53 2.20 1.20
实施例三 2.59 4.04 4.73 2.08 1.11
实施例四 2.17 1.97 4.52 2.31 1.08
实施例五 2.11 2.23 4.54 2.58 1.09
实施例六 2.14 1.45 4.56 2.09 1.23
实施例七 2.34 1.78 4.53 2.00 1.09
实施例八 1.95 1.90 4.52 3.78 1.26
实施例九 2.25 2.00 4.52 2.63 1.25
请参照图21，本申请实施例的取像模组100包括光学成像系统10和感光元件20，感光元件20设置在光学成像系统10的像侧。
具体地，感光元件20可以采用互补金属氧化物半导体(CMOS，Complementary Metal Oxide Semiconductor)影像感测器或者电荷耦合元件(CCD，Charge-coupled Device)。
请继续参照图21，本申请实施例的电子装置1000包括壳体200和取像模组100，取像模组100安装在壳体200上以用于获取图像。
本申请实施例的电子装置1000包括但不限于为智能手机、汽车车载镜头、监控镜头、平板电脑、笔记本电脑、电子书籍阅读器、便携多媒体播放器(PMP)、便携电话机、视频电话机、数码静物相机、移动医疗装置、可穿戴式设备等支持成像的电子装置。
对于本领域技术人员而言，显然本申请不限于上述示范性实施例的细节，而且在不背离本申请的精神或基本特征的情况下，能够以其他的具体形式实现本申请。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本申请的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本申请内。
最后应说明的是，以上实施例仅用以说明本申请的技术方案而非限制，尽管参照较佳实施例对本申请进行了详细说明，本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或等同替换，而不脱离本申请技术方案的精神和范围。

Claims (12)

  1. 一种光学成像系统，其特征在于，由物侧到像侧依次包括：
    具有正屈折力的第一透镜，所述第一透镜的物侧面在近光轴处为凸面，所述第一透镜的像侧面在近光轴处为凹面；
    具有屈折力的第二透镜；
    具有负屈折力的第三透镜；
    具有正屈折力的第四透镜，所述第四透镜的物侧面在近光轴处为凹面，所述第四透镜的像侧面在近光轴处为凸面；
    具有负屈折力的第五透镜，所述第五透镜的物侧面在近光轴处为凸面，所述第五透镜的像侧面在近光轴处为凹面，所述第五透镜的物侧面与像侧面均为非球面；
    所述光学成像系统满足以下关系式：
    1.2<|f3/f|<4.2；
    其中，f3为所述第三透镜的有效焦距，f为所述光学成像系统的有效焦距。
  2. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    |sag51m-sag51s|/(sd51m-sd51s)>0.2；
    其中，所述第五透镜的物侧面与光轴有一第一交点，所述第五透镜的物侧面的有效径内各点的切面与垂直于光轴的平面相交形成锐角夹角，sag51m为所述锐角夹角最大的点至所述第一交点在光轴方向上的距离；所述第一交点至所述第五透镜的物侧面的最大有效半口径距所述第一交点四分之一处有一第二交点，sag51s为所述第一交点到所述第二交点在光轴方向上的距离；sd51m为所述锐角夹角最大的点处的半口径；sd51s为所述第二交点处的半口径。
  3. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    1<et3/(et23+et34)<4.2；
    其中，et3为所述第三透镜的最大有效半口径于光轴方向上的厚度，et23为所述第二透镜的像侧面的最大有效径处至所述第三透镜的物侧面的最大有效径处于光轴方向上的距离，et34为所述第三透镜的像侧面的最大有效径处与所述第四透镜的物侧面的最大有效径处于光轴方向上的距离。
  4. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    (sd21+sd22)/(sd11+sd12)≥1.05；
    其中，sd21为所述第二透镜的物侧面的最大有效半口径，sd22为所述第二透镜的像侧面的最大有效半口径，sd11为所述第一透镜的物侧面的最大有效半口径，sd12为所述第一透镜的像侧面的最大有效半口径。
  5. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    3.5<f5/sag51<20.5；
    其中，f5为所述第五透镜的有效焦距；sag51为所述第五透镜的物侧面在光轴上的交点 至所述第五透镜的物侧面的最大有效半口径处在光轴方向的距离。
  6. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    1.2<sag42/et4<3.2；
    其中，sag42为所述第四透镜的像侧面在光轴上的交点至所述第四透镜的像侧面的最大有效半径位置在光轴方向的距离，et4为所述第四透镜的最大有效半口径于光轴方向的厚度。
  7. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    1.7<TTL/etal<2.7；
    其中，TTL为所述第一透镜的物侧面至所述光学成像系统的成像面在光轴上的距离，etal为所述第一透镜至所述第五透镜的最大有效半口径于光轴方向的厚度的总和。
  8. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    Imgh/sd51>4.2；
    其中，Imgh为所述光学成像系统的最大视场角所对应的像高的一半，sd51为所述第五透镜的物侧面的最大有效半口径。
  9. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    1.9<sd51/atl<4；
    其中，sd51为所述第五透镜的物侧面的最大有效半口径，atl为所述第一透镜至所述第五透镜中的相邻的两个透镜之间的空气间隙在光轴上的距离的总和。
  10. 如权利要求1所述的光学成像系统，其特征在于，所述光学成像系统满足以下关系式：
    BF/et52>1；
    其中，BF为所述第五透镜的像侧面至所述光学成像系统的成像面在光轴方向的最小距离，et52为所述第五透镜的像侧面的最大有效半口径处与滤光片之间的空气间隙在光轴上的距离。
  11. 一种取像模组，其特征在于，包括：
    如权利要求1至10中任意一项所述的光学成像系统；及
    感光元件，所述感光元件设置于所述光学成像系统的像侧。
  12. 一种电子装置，其特征在于，包括：
    壳体；及
    如权利要求11所述的取像模组，所述取像模组安装在所述壳体上。
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