CN110542997A - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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Publication number
CN110542997A
CN110542997A CN201910956310.3A CN201910956310A CN110542997A CN 110542997 A CN110542997 A CN 110542997A CN 201910956310 A CN201910956310 A CN 201910956310A CN 110542997 A CN110542997 A CN 110542997A
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Prior art keywords
lens
image
refractive index
convex
lens element
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Granted
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CN201910956310.3A
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CN110542997B (en
Inventor
张军光
王世昌
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Xiamen Li Ding Au Optronics Co
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Xiamen Li Ding Au Optronics Co
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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
    • 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
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

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

Abstract

The invention relates to the technical field of lenses. The invention discloses an optical imaging lens, which comprises ten lenses, wherein a first lens, a second lens, a third lens, a fourth lens, a sixth lens, a seventh lens and a tenth lens are all convex-concave lenses with negative refractive indexes, a fourth lens, a sixth lens, a seventh lens and a tenth lens are all convex-convex lenses with positive refraction, a fifth lens is a convex-concave lens with positive refraction, an eighth lens is a concave-concave lens with negative refractive index, a ninth lens is a convex-concave lens with negative refractive index, the third lens and the fourth lens are mutually glued, the seventh lens and the eighth lens are mutually glued, and the second lens, the fifth lens, the ninth lens and the tenth lens are all plastic aspheric lenses. The invention has the advantages of large field angle, large image surface, low aberration such as distortion, high resolution, good imaging quality and low cost.

Description

Optical imaging lens
Technical Field
the invention belongs to the technical field of lenses, and particularly relates to an optical imaging lens.
Background
with the continuous progress of science and technology, in recent years, the optical imaging lens is rapidly developed and widely applied to various fields such as smart phones, tablet computers, video conferences, vehicle-mounted monitoring, security monitoring and the like, so that the requirement on the optical imaging lens is higher and higher. However, in the large wide-angle optical imaging lens for the video conference in the current market, the optical distortion of the system is large, and the imaging deformation is serious; the imaging surface is not large enough and cannot adapt to high picture; the use of more glass lenses to compress distortion has higher cost; when the optical transfer function is used, the control of the optical transfer function is to be improved, the resolution is low, the increasingly-improved requirements of consumers cannot be met, and the improvement is needed.
Disclosure of Invention
the present invention is directed to an optical imaging lens to solve the above problems.
In order to achieve the purpose, the invention adopts the technical scheme that: an optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light and an image-side surface facing the image side and passing the image light;
The first lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The second lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The third lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The fourth lens element with positive refractive power has a convex object-side surface, a convex image-side surface, and an object-side surface cemented with the image-side surface;
The fifth lens element with positive refractive index has a convex object-side surface and a concave image-side surface;
The sixth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
The seventh lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
the eighth lens element with negative refractive index has a concave object-side surface and a concave image-side surface, and the seventh lens element is cemented with the eighth lens element;
The ninth lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The tenth lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
The second lens, the fifth lens, the ninth lens and the tenth lens are all plastic aspheric lenses;
The optical imaging lens has only ten lenses with refractive indexes.
Further, the optical diaphragm is arranged between the fourth lens and the fifth lens.
Further, the optical imaging lens further satisfies: nd1>1.8, where nd1 is the refractive index of the first lens at the d-line.
further, the optical imaging lens further satisfies: 1.8< nd8<1.9, where nd8 is the refractive index of the eighth lens at d-line.
Further, the optical imaging lens further satisfies: vd3-vd4>30, where vd3 and vd4 are the d-line abbe numbers of the third and fourth lenses, respectively.
Further, the optical imaging lens further satisfies: vd7-vd8>30, where vd7 and vd8 are the d-line abbe numbers of the seventh lens and the eighth lens, respectively.
Further, the optical imaging lens further satisfies: 1.5< nd2<1.55, 50< vd2<60, where nd2 is the refractive index of the second lens in the d-line and vd2 is the abbe number of the second lens in the d-line.
further, the optical imaging lens further satisfies: 1.5< nd5<1.55, 50< vd5<60, where nd5 is the refractive index of the fifth lens in the d-line and vd5 is the abbe number of the fifth lens in the d-line.
Further, the optical imaging lens further satisfies: 1.5< nd9<1.55, 50< vd9<60, where nd9 is the refractive index of the ninth lens in d-line and vd9 is the abbe number of the ninth lens in d-line.
further, the optical imaging lens further satisfies: 1.5< nd10<1.55, 50< vd10<60, where nd10 is the refractive index of the tenth lens in the d-line and vd10 is the abbe number of the tenth lens in the d-line.
The invention has the beneficial technical effects that:
the invention adopts ten lenses, and has large field angle by correspondingly designing each lens; the imaging surface is large (the diameter phi is larger than 16mm), and the imaging surface can be matched with a large photosensitive element for use; the aberration such as distortion is small, so that the imaging effect is ensured; the optical transfer function has better control and high resolution, and can support 12M pixels to the maximum; low cost.
drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is an MTF graph of visible light 436-650nm according to the first embodiment of the present invention;
FIG. 3 is a defocus plot of visible light 436-650nm at 60lp/mm in the first embodiment of the present invention;
FIG. 4 is a diagram illustrating curvature of field and distortion according to a first embodiment of the present invention;
FIG. 5 is a diagram illustrating longitudinal aberrations according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 7 is an MTF plot of visible light 436-650nm according to example two of the present invention;
FIG. 8 is a defocus plot of 60lp/mm in visible light 436-650nm in example two of the present invention;
FIG. 9 is a diagram illustrating curvature of field and distortion according to a second embodiment of the present invention;
FIG. 10 is a diagram illustrating longitudinal aberrations in accordance with a second embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 12 is an MTF plot at 436-650nm for visible light in accordance with a third embodiment of the present invention;
FIG. 13 is a defocus plot of 60lp/mm in visible light 436-650nm in example III of the present invention;
FIG. 14 is a diagram illustrating curvature of field and distortion according to a third embodiment of the present invention;
FIG. 15 is a schematic diagram of longitudinal aberration of the third embodiment of the present invention;
FIG. 16 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 17 is an MTF plot at 436-650nm for visible light in accordance with example four of the present invention;
FIG. 18 is a defocus plot of 60lp/mm in visible light 436-650nm of example four of the present invention;
FIG. 19 is a graph showing curvature of field and distortion according to a fourth embodiment of the present invention;
FIG. 20 is a schematic diagram of longitudinal aberration diagrams according to the fourth embodiment of the present invention;
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
the invention will now be further described with reference to the accompanying drawings and detailed description.
the term "a lens element having positive refractive index (or negative refractive index)" means that the paraxial refractive index of the lens element calculated by Gaussian optics theory is positive (or negative). The term "object-side (or image-side) of a lens" is defined as the specific range of imaging light rays passing through the lens surface. The determination of the surface shape of the lens can be performed by the judgment method of a person skilled in the art, i.e., by the sign of the curvature radius (abbreviated as R value). The R value may be commonly used in optical design software, such as Zemax or CodeV. The R value is also commonly found in lens data sheets (lens data sheets) of optical design software. When the R value is positive, the object side is judged to be a convex surface; and when the R value is negative, judging that the object side surface is a concave surface. On the contrary, regarding the image side surface, when the R value is positive, the image side surface is judged to be a concave surface; when the R value is negative, the image side surface is judged to be convex.
the invention discloses an optical imaging lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side along an optical axis; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light, and an image-side surface facing the image side and passing the image light.
the first lens element with negative refractive index has a convex object-side surface and a concave image-side surface; the second lens element with negative refractive index has a convex object-side surface and a concave image-side surface; the third lens element with negative refractive index has a convex object-side surface and a concave image-side surface; the fourth lens element with positive refractive power has a convex object-side surface, a convex image-side surface, and an object-side surface cemented with the image-side surface; the fifth lens element with positive refractive index has a convex object-side surface and a concave image-side surface; the sixth lens element with positive refractive index has a convex object-side surface and a convex image-side surface; the seventh lens element with positive refractive power has a convex object-side surface and a convex image-side surface; the eighth lens element with negative refractive index has a concave object-side surface and a concave image-side surface, and the seventh lens element is cemented with the eighth lens element; the ninth lens element with negative refractive index has a convex object-side surface and a concave image-side surface; the tenth lens element with a positive refractive power has a convex object-side surface and a convex image-side surface.
The second lens, the fifth lens, the ninth lens and the tenth lens are all plastic aspheric lenses, so that the cost can be greatly reduced, the processing is easier, and the effect of optimizing aberration can be achieved.
The optical imaging lens has only ten lenses with refractive indexes. The invention adopts ten lenses, and has large field angle by correspondingly designing each lens; the imaging surface is large, and the imaging device can be matched with a large photosensitive element for use; the aberration such as distortion is small, so that the imaging effect is ensured; the optical transfer function has better control and high resolution, and can support 12M pixels to the maximum; low cost.
Preferably, the diaphragm is arranged between the fourth lens and the fifth lens, so that the overall performance is improved, the overall light rays are relatively smooth, and the tolerance and the manufacturability are high.
Preferably, the optical imaging lens further satisfies: nd1>1.8, wherein nd1 is the refractive index of the first lens at d-line, and can compress a larger field angle better.
preferably, the optical imaging lens further satisfies: 1.8< nd8<1.9, wherein nd8 is the refractive index of the eighth lens in the d line, and can expand the image plane to a certain extent, improve the MTF and optimize the optical imaging lens structure.
preferably, the optical imaging lens further satisfies: vd3-vd4>30, wherein vd3 and vd4 are the d-line dispersion coefficients of the third lens and the fourth lens respectively, and chromatic aberration can be optimized well.
Preferably, the optical imaging lens further satisfies: vd7-vd8>30, wherein vd7 and vd8 are the d-line dispersion coefficients of the seventh lens and the eighth lens respectively, and chromatic aberration can be optimized well.
preferably, the optical imaging lens further satisfies: 1.5< nd2<1.55 and 50< vd2<60, wherein nd2 is the refractive index of the second lens in the d line, and vd2 is the abbe number of the second lens in the d line, so that the method is easy to realize and reduces the cost.
preferably, the optical imaging lens further satisfies: 1.5< nd5<1.55 and 50< vd5<60, wherein nd5 is the refractive index of the fifth lens in the d line, and vd5 is the abbe number of the fifth lens in the d line, so that the method is easy to realize and reduces the cost.
Preferably, the optical imaging lens further satisfies: 1.5< nd9<1.55 and 50< vd9<60, wherein nd9 is the refractive index of the ninth lens in the d line, and vd9 is the abbe number of the ninth lens in the d line, so that the method is easy to realize and reduces the cost.
preferably, the optical imaging lens further satisfies: 1.5< nd10<1.55 and 50< vd10<60, wherein nd10 is the refractive index of the tenth lens in the d line, and vd10 is the abbe number of the tenth lens in the d line, so that the implementation is easy and the cost is reduced.
the optical imaging lens of the present invention will be described in detail below with specific embodiments.
example one
as shown in fig. 1, an optical imaging lens includes, in order along an optical axis I from an object side a1 to an image side a2, a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a stop 110, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9, a tenth lens 100, a cover glass 120, and an image plane 130; the first lens element 1 to the tenth lens element 100 each include an object-side surface facing the object side a1 and passing the image light, and an image-side surface facing the image side a2 and passing the image light.
the first lens element 1 has a negative refractive index, the object-side surface 11 of the first lens element 1 is convex, and the image-side surface 12 of the first lens element 1 is concave.
The second lens element 2 has a negative refractive index, and an object-side surface 21 of the second lens element 2 is convex and an image-side surface 22 of the second lens element 2 is concave.
the third lens element 3 has a negative refractive index, and an object-side surface 31 of the third lens element 3 is convex and an image-side surface 32 of the third lens element 3 is concave.
the fourth lens element 4 has a positive refractive index, the object-side surface 41 of the fourth lens element 4 is convex, and the image-side surface 42 of the fourth lens element 4 is convex.
The fifth lens element 5 has a positive refractive index, and an object-side surface 51 of the fifth lens element 5 is convex and an image-side surface 52 of the fifth lens element 5 is concave.
The sixth lens element 6 with positive refractive index has a convex object-side surface 61 of the sixth lens element 6 and a convex image-side surface 62 of the sixth lens element 6.
The seventh lens element 7 has a positive refractive index, and an object-side surface 71 of the seventh lens element 7 is convex and an image-side surface 72 of the seventh lens element 7 is convex.
The eighth lens element 8 has a negative refractive index, and an object-side surface 81 of the eighth lens element 8 is concave and an image-side surface 82 of the eighth lens element 8 is concave.
The ninth lens element 9 has a negative refractive index, and an object-side surface 91 of the ninth lens element 9 is convex and an image-side surface 92 of the ninth lens element 9 is concave.
the tenth lens element 100 with positive refractive power has a convex object-side surface 101 of the tenth lens element 100 and a convex image-side surface 102 of the tenth lens element 100.
the image side surface 32 of the third lens element 3 and the object side surface 41 of the fourth lens element 4 are cemented to each other; the image-side surface 72 of the seventh lens element 7 and the object-side surface 81 of the eighth lens element 8 are cemented to each other.
The second lens 2, the fifth lens 5, the ninth lens 9, and the tenth lens 100 are all plastic aspherical lenses.
Of course, in other embodiments, the diaphragm 110 may be disposed in other locations.
The detailed optical data of this embodiment are shown in Table 1-1.
Table 1-1 detailed optical data for example one
In this embodiment, the object side surface 21, the object side surface 51, the object side surface 91, the object side surface 101, the image side surface 22, the image side surface 52, the image side surface 92 and the image side surface 102 are defined by the following aspheric curve formula:
wherein:
z: depth of the aspheric surface (the vertical distance between a point on the aspheric surface that is y from the optical axis and a tangent plane tangent to the vertex on the optical axis of the aspheric surface);
c: curvature of aspheric vertex (the vertex curvature);
k: cone coefficient (Conic Constant);
Radial distance (radial distance);
rn: normalized radius (normalysis radius (NRADIUS));
u：r/r；
am: an mth order Qcon coefficient (is the mth Qcon coefficient);
Qmcon: an mth order Qcon polynomial (the mth Qcon polynomial);
For details of parameters of each aspheric surface, please refer to the following table:
Surface of 21 22 51 52 91 92 101 102
K＝ -3.03E+00 -1.01E+00 -2.30E-01 -1.36E+00 5.73E+01 1.17E+01 1.39E+00 -9.63E+01
a4＝ -2.76E-04 -1.69E-04 1.81E-05 1.32E-04 -1.04E-03 -1.23E-03 -5.76E-04 -4.63E-04
a6＝ 1.73E-06 3.47E-06 3.44E-06 6.36E-07 1.91E-05 3.19E-05 5.94E-06 1.23E-06
a8＝ -7.00E-09 -4.77E-08 -7.83E-09 3.04E-07 3.38E-07 1.47E-07 1.57E-11 5.13E-09
a10＝ 8.98E-13 4.80E-10 -5.13E-09 7.45E-09 3.47E-09 -7.75E-10 -1.94E-10 1.18E-10
a12＝ 1.14E-13 2.42E-12 6.16E-10 -2.43E-09 3.29E-11 -6.60E-12 -5.70E-12 -1.31E-12
a14＝ -1.04E-15 -1.52E-13 -8.59E-11 9.89E-11 -3.54E-11 -5.33E-12 -1.29E-13 -4.52E-14
A16＝ 0.00E+00 1.93E-16 4.00E-12 -3.23E-13 7.83E-13 7.90E-14 1.96E-15 0.00E+00
The MTF transfer function curve chart of the specific embodiment is shown in detail in FIG. 2, and it can be seen that the resolution is good, the resolution is high, the MTF values of all angles are all larger than 0.35 when the spatial frequency is 125lp/mm, and the imaging quality is good; the defocusing graph is shown in detail in FIG. 3, and it can be seen that the defocusing is small; the field curvature and distortion diagram are shown in (A) and (B) of FIG. 4, and it can be seen that the field curvature is small, and is less than + -0.045 mm under all the fields of view; the distortion is small, the field angle is larger than 134 degrees, and the optical distortion is smaller than 45 percent; the longitudinal aberration diagram is detailed in figure 5, and it can be seen that the chromatic aberration is small, and within the wavelength error range, the chromatic aberration is less than +/-0.04 mm.
In this embodiment, the focal length f of the optical imaging lens is 5.57 mm; f, FNO 2.4; the distance TTL between the object side surface 11 of the first lens element 1 and the imaging surface 130 on the optical axis I is 52.96 mm; the field angle FOV equals 134 °, and the image plane diameter Φ equals 16.2 mm.
Example two
as shown in fig. 6, in this embodiment, the surface convexoconcave and the refractive index of each lens are the same as those of the first embodiment, and only the optical parameters such as the curvature radius of the surface of each lens and the thickness of the lens are different.
the detailed optical data of this embodiment is shown in Table 2-1.
TABLE 2-1 detailed optical data for example two
For the detailed data of the parameters of each aspheric surface of this embodiment, refer to the following table:
The MTF transfer function curve chart of the specific embodiment is shown in detail in FIG. 7, and it can be seen that the resolution is good, the resolution is high, the MTF values of all angles are all larger than 0.35 when the spatial frequency is 125lp/mm, and the imaging quality is good; the defocusing graph is shown in detail in fig. 8, and the defocusing is small; the field curvature and distortion diagram are shown in detail in (a) and (B) of fig. 9, and it can be seen that the field curvature is small, and is less than ± 0.045mm under all the fields of view; the distortion is small, the field angle is larger than 134 degrees, and the optical distortion is smaller than 45 percent; the longitudinal aberration diagram is detailed in fig. 10, and it can be seen that the chromatic aberration is small, and within the wavelength error range, the chromatic aberration is less than +/-0.04 mm.
in this embodiment, the focal length f of the optical imaging lens is 5.89 mm; f, FNO 2.4; the distance TTL between the object side surface 11 of the first lens element 1 and the imaging surface 130 on the optical axis I is 52.80 mm; the field angle FOV equals 134 °, and the image plane diameter Φ equals 16.2 mm.
EXAMPLE III
As shown in fig. 11, in this embodiment, the surface convexoconcave and the refractive index of each lens are the same as those of the first embodiment, and only the optical parameters such as the curvature radius of the surface of each lens and the thickness of the lens are different.
The detailed optical data of this embodiment is shown in Table 3-1.
TABLE 3-1 detailed optical data for EXAMPLE III
for the detailed data of the parameters of each aspheric surface of this embodiment, refer to the following table:
The MTF transfer function curve chart of the specific embodiment is shown in detail in FIG. 12, and it can be seen that the resolution is good, the resolution is high, the MTF values of all angles are all larger than 0.35 when the spatial frequency is 125lp/mm, and the imaging quality is good; the defocusing graph is shown in detail in fig. 13, and the defocusing is small; the field curvature and distortion map are shown in (a) and (B) of fig. 14 in detail, and it can be seen that the field curvature is small, and is less than ± 0.045mm under all the fields of view; the distortion is small, the field angle is larger than 134 degrees, and the optical distortion is smaller than 45 percent; the longitudinal aberration diagram is shown in detail in fig. 15, and it can be seen that the chromatic aberration is small, and within the wavelength error range, the chromatic aberration is less than +/-0.04 mm.
in this embodiment, the focal length f of the optical imaging lens is 5.9 mm; f, FNO 2.4; TTL is 53.34 mm; the distance field angle FOV from the object-side surface 11 of the first lens 1 to the image plane 130 on the optical axis I is 134 °, and the image plane diameter Φ is 16.2 mm.
Example four
As shown in fig. 16, the lens elements of this embodiment have the same surface irregularities and refractive index as those of the first embodiment, and only the optical parameters such as the curvature radius of the surface of each lens element and the lens thickness are different.
The detailed optical data of this embodiment is shown in Table 4-1.
TABLE 4-1 detailed optical data for example four
Surface of caliber (mm) Radius of curvature (mm) Thickness (mm) material of Refractive index coefficient of dispersion focal length (mm)
- Shot object surface Infinity 2000.000
11 First lens 30.609 33.146 3.128 TAF3D 1.804 46.503 -18.937
12 18.559 10.030 4.522
21 Second lens 18.158 10.875 1.877 ZEONEX_F52R 1.535 56.072 -15.983
22 13.934 4.509 5.028
31 Third lens 13.922 146.101 3.615 H-QK3L 1.487 70.420 -92.108
32 13.655 34.155 0
41 fourth lens 13.655 34.155 9.313 H-F4 1.620 36.348 18.375
42 13.655 -15.455 5.311
110 Diaphragm 7.226766 Infinity 0.110
51 Fifth lens element 7.852 13.348 1.544 ZEONEX_E48R 1.531 55.754 56.704
52 8.159 22.915 0.186
61 Sixth lens element 9.600 17.033 2.437 H-FK61 1.496998 81.5947 17.50
62 9.600 -17.033 0.072
71 Seventh lens element 9.600 9.490 2.280 H-K9L 1.517 64.212 16.605
72 9.600 -85.582 0
81 Eighth lens element 9.600 -85.582 0.959 FDS90-SG 1.847 23.785 -8.122
82 7.800 7.598 2.291
91 Ninth lens 9.322 41.314 1.594 ZEONEX_F52R 1.535 56.072 -155.877
92 10.400 27.294 1.948
101 Tenth lens 14.932 15.747 5.391 ZEONEX_F52R 1.535 56.072 20.389
102 16.482 -31.697 0.978
120 cover glass 16.76933 Infinity 0.800 H-K9L 1.517 64.212 Infinity
- 16.814 Infinity 2.405
130 Image plane 16.825 Infinity
for the detailed data of the parameters of each aspheric surface of this embodiment, refer to the following table:
The MTF transfer function graph of the specific embodiment is shown in fig. 17 in detail, and it can be seen that the resolution is good, the resolution is high, the MTF values of all angles are all larger than 0.35 when the spatial frequency is 125lp/mm, and the imaging quality is good; the defocusing graph is shown in detail in fig. 18, and defocusing is small; the field curvature and distortion map are shown in (a) and (B) of fig. 19, and it can be seen that the field curvature is small, and is less than ± 0.045mm under all the fields of view; the distortion is small, the field angle is larger than 134 degrees, and the optical distortion is smaller than 45 percent; the longitudinal aberration diagram is shown in detail in fig. 20, and it can be seen that the chromatic aberration is small, and within the wavelength error range, the chromatic aberration is less than +/-0.04 mm.
In this embodiment, the focal length f of the optical imaging lens is 5.88 mm; f, FNO 2.4; the distance TTL between the object side surface 11 of the first lens element 1 and the image plane 130 on the optical axis I is 52.85 mm; the field angle FOV equals 134 °, and the image plane diameter Φ equals 16.2 mm.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An optical imaging lens characterized in that: the lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side along an optical axis; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light and an image-side surface facing the image side and passing the image light;
the first lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The second lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the third lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
The fourth lens element with positive refractive power has a convex object-side surface, a convex image-side surface, and an object-side surface cemented with the image-side surface;
The fifth lens element with positive refractive index has a convex object-side surface and a concave image-side surface;
The sixth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the seventh lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
The eighth lens element with negative refractive index has a concave object-side surface and a concave image-side surface, and the seventh lens element is cemented with the eighth lens element;
The ninth lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the tenth lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
The second lens, the fifth lens, the ninth lens and the tenth lens are all plastic aspheric lenses;
the optical imaging lens has only ten lenses with refractive indexes.
2. The optical imaging lens according to claim 1, characterized in that: and the diaphragm is arranged between the fourth lens and the fifth lens.
3. the optical imaging lens of claim 1, further satisfying: nd1>1.8, where nd1 is the refractive index of the first lens at the d-line.
4. The optical imaging lens of claim 1, further satisfying: 1.8< nd8<1.9, where nd8 is the refractive index of the eighth lens at d-line.
5. The optical imaging lens of claim 1, further satisfying: vd3-vd4>30, where vd3 and vd4 are the d-line abbe numbers of the third and fourth lenses, respectively.
6. The optical imaging lens according to claim 1 or 5, characterized in that it further satisfies: vd7-vd8>30, where vd7 and vd8 are the d-line abbe numbers of the seventh lens and the eighth lens, respectively.
7. The optical imaging lens of claim 1, further satisfying: 1.5< nd2<1.55, 50< vd2<60, where nd2 is the refractive index of the second lens in the d-line and vd2 is the abbe number of the second lens in the d-line.
8. the optical imaging lens of claim 1, further satisfying: 1.5< nd5<1.55, 50< vd5<60, where nd5 is the refractive index of the fifth lens in the d-line and vd5 is the abbe number of the fifth lens in the d-line.
9. The optical imaging lens of claim 1, further satisfying: 1.5< nd9<1.55, 50< vd9<60, where nd9 is the refractive index of the ninth lens in d-line and vd9 is the abbe number of the ninth lens in d-line.
10. The optical imaging lens of claim 1, further satisfying: 1.5< nd10<1.55, 50< vd10<60, where nd10 is the refractive index of the tenth lens in the d-line and vd10 is the abbe number of the tenth lens in the d-line.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112612135A (en) * 2020-12-30 2021-04-06 厦门力鼎光电股份有限公司 Eyepiece optical system
US20220128799A1 (en) * 2020-10-28 2022-04-28 Ability Enterprise Co., Ltd. Optical lens
CN115113369A (en) * 2022-06-29 2022-09-27 上海摩勤智能技术有限公司 Optical system and projector
CN115407491A (en) * 2022-09-30 2022-11-29 厦门力鼎光电股份有限公司 Wide-angle optical imaging lens with close object distance
JP7395658B1 (en) 2022-06-15 2023-12-11 キヤノン株式会社 Optical system and imaging device equipped with the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017009973A (en) * 2015-06-26 2017-01-12 京セラ株式会社 Image capturing lens and image capturing device
CN107632369A (en) * 2017-10-16 2018-01-26 浙江大华技术股份有限公司 A kind of tight shot and picture pick-up device
CN109358465A (en) * 2018-12-11 2019-02-19 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN109799597A (en) * 2019-03-28 2019-05-24 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN110082894A (en) * 2019-05-07 2019-08-02 厦门力鼎光电股份有限公司 A kind of zoom lens
CN110308541A (en) * 2019-08-06 2019-10-08 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN210626767U (en) * 2019-10-10 2020-05-26 厦门力鼎光电股份有限公司 Optical imaging lens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017009973A (en) * 2015-06-26 2017-01-12 京セラ株式会社 Image capturing lens and image capturing device
CN107632369A (en) * 2017-10-16 2018-01-26 浙江大华技术股份有限公司 A kind of tight shot and picture pick-up device
CN109358465A (en) * 2018-12-11 2019-02-19 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN109799597A (en) * 2019-03-28 2019-05-24 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN110082894A (en) * 2019-05-07 2019-08-02 厦门力鼎光电股份有限公司 A kind of zoom lens
CN110308541A (en) * 2019-08-06 2019-10-08 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN210626767U (en) * 2019-10-10 2020-05-26 厦门力鼎光电股份有限公司 Optical imaging lens

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220128799A1 (en) * 2020-10-28 2022-04-28 Ability Enterprise Co., Ltd. Optical lens
CN112612135A (en) * 2020-12-30 2021-04-06 厦门力鼎光电股份有限公司 Eyepiece optical system
JP7395658B1 (en) 2022-06-15 2023-12-11 キヤノン株式会社 Optical system and imaging device equipped with the same
JP2023183262A (en) * 2022-06-15 2023-12-27 キヤノン株式会社 Optical system and image capturing device having same
CN115113369A (en) * 2022-06-29 2022-09-27 上海摩勤智能技术有限公司 Optical system and projector
CN115113369B (en) * 2022-06-29 2023-12-01 上海摩勤智能技术有限公司 Optical system and projector
CN115407491A (en) * 2022-09-30 2022-11-29 厦门力鼎光电股份有限公司 Wide-angle optical imaging lens with close object distance
CN115407491B (en) * 2022-09-30 2024-07-19 厦门力鼎光电股份有限公司 Optical imaging lens with wide angle and near object distance

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