CN208654421U - Pick-up lens, image-taking device and electronic device - Google Patents
Pick-up lens, image-taking device and electronic device Download PDFInfo
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- CN208654421U CN208654421U CN201821360504.4U CN201821360504U CN208654421U CN 208654421 U CN208654421 U CN 208654421U CN 201821360504 U CN201821360504 U CN 201821360504U CN 208654421 U CN208654421 U CN 208654421U
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Abstract
The utility model discloses a kind of pick-up lens, image-taking device and electronic devices.Pick-up lens successively includes diaphragm, the first lens with positive refracting power, the second lens with negative refracting power, the third lens with negative refracting power, the 4th lens with positive refracting power and with the 5th lens of negative refracting power from object side to image side.The image side surface of first lens is concave surface at optical axis, is convex surface at circumference.The image side surface of 4th lens is convex surface at optical axis.The image side surface of 5th lens is concave surface at optical axis, and an at least surface has at least one point of inflexion in the object side of the 5th lens and image side surface.Pick-up lens meets following relationship: 1 < R4/f < 1.5；Wherein, R4 is the radius of curvature of the image side surface of the second lens, and f is the effective focal length of pick-up lens.The pick-up lens of the utility model embodiment has the configuration of reasonable lens and pick-up lens meets relational expression 1 < R4/f < 1.5, can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improves image quality.
Description
Technical field
The utility model relates to optical image technology, in particular to a kind of pick-up lens, image-taking device and electronic device.
Background technique
Tradition is equipped on the optical system on electronic product and mostly uses based on quadruple lenses structure, but due to smart phone
The high standards electronic device such as (Smart Phone) and tablet computer (Tablet PC) it is prevailing, drive optical system pixel with
It is rapid soaring on image quality, it is known that optical system will be unable to the camera chain for meeting higher order.Therefore, be badly in need of it is a kind of at
As the preferable photographic optical system of quality.
Utility model content
The utility model embodiment provides a kind of pick-up lens, image-taking device and electronic device.
The pick-up lens of the utility model embodiment successively includes diaphragm, with positive refracting power from object side to image side
One lens, the second lens with negative refracting power, the third lens with negative refracting power, the 4th lens with positive refracting power and
The 5th lens with negative refracting power.The image side surface of first lens is concave surface at optical axis, is convex surface at circumference.It is described
The image side surface of 4th lens is convex surface at optical axis, and the object side of the 4th lens is aspherical with image side surface.Described
The image side surface of five lens is concave surface at optical axis, the object side of the 5th lens with image side surface be it is aspherical, the described 5th
An at least surface has at least one point of inflexion in the object side of lens and image side surface.The pick-up lens meets following relationship
Formula: 1 < R4/f < 1.5；Wherein, R4 is the radius of curvature of the image side surface of second lens, and f is effective coke of the pick-up lens
Away from.
The pick-up lens of the utility model embodiment have reasonable lens configure and pick-up lens meet relational expression 1 <
R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improve image quality.
In some embodiments, the pick-up lens also satisfies the following conditional expression: 0.4 < | Ds |/D1 < 0.7；Wherein, Ds
For the diaphragm with the object side of first lens at a distance from optical axis, D1 is that first lens are thick in the center of optical axis
Degree.
Pick-up lens meet relational expression 0.4 < | Ds | when/D1 < 0.7, the opposite position of diaphragm and the first lens can be effectively controlled
It sets, reduces the susceptibility of pick-up lens, the assembling for being conducive to the first lens and diaphragm configures.
In some embodiments, the pick-up lens also satisfies the following conditional expression: 1 < f1/f4 < 1.8；Wherein, f1 is institute
The focal length of the first lens is stated, f4 is the focal length of the 4th lens.
When pick-up lens meets 1 < f1/f4 of relational expression < 1.8, the first lens can provide most of positive refracting power, while the 4th
Lens share the positive refracting power in part, and the refracting power size configuration of the 4th lens more balances, can avoid pick-up lens and generate excessively
Spherical aberration, while may make that the overall length of pick-up lens will not be too long.
In some embodiments, the pick-up lens also satisfies the following conditional expression: f3/ (f2+f5) > 4；Wherein, f3 is
The focal length of the third lens, f2 are the focal length of second lens, and f5 is the focal length of the 5th lens.
When pick-up lens meets relational expression f3/ (f2+f5) > 4, the third lens can provide main negative refracting power, and amendment is taken the photograph
As the color difference of camera lens, the second lens and the 5th lens share the negative refracting power in part, are conducive to correct astigmatism, to promote imaging product
Matter.
In some embodiments, the pick-up lens also satisfies the following conditional expression: f/EPD < 2.2；Wherein, EPD is institute
State the entrance pupil diameter of pick-up lens.
When pick-up lens meets relational expression f/EPD < 2.2, biggish aperture can get, to increase the entering light of pick-up lens
Amount is conducive to improve the image quality under low-light level environment.
In some embodiments, the pick-up lens also satisfies the following conditional expression: 0.7 < (D12+D23)/D34 < 1.3；
Wherein, D12 is first lens and second lens in the distance of optical axis, and D23 is second lens and the third
For lens in the distance of optical axis, D34 is the third lens and the 4th lens in the distance of optical axis.
When pick-up lens meets relational expression 0.7 < (D12+D23)/D34 < 1.3, the first lens, the second lens and the third lens
Spacer thickness configuration is conducive to the assembling of each lens of pick-up lens, and can protect while reducing the susceptibility of pick-up lens
Hold the miniaturization of pick-up lens.
In some embodiments, the pick-up lens also satisfies the following conditional expression: | SAG41 |≤0.3, | SAG42 |≤
0.8；Wherein, SAG41 be the 4th lens intersection point of the object side on optical axis to the object side of the 4th lens most
Big effective radius in the horizontal displacement distance of optical axis, SAG42 for the 4th lens intersection point of the image side surface on optical axis to institute
State horizontal displacement distance of the maximum effective radius in optical axis of the image side surface of the 4th lens.
Pick-up lens meets relational expression | SAG41 |≤0.3 He | and SAG42 | when≤0.8, it is ensured that the object side of the 4th lens
It will not be excessively bent with image side surface, be easy molding, to improve production yield, and can effectively correct the astigmatism of pick-up lens.
In some embodiments, the pick-up lens also satisfies the following conditional expression: 0.3 < Yc52/DT52 < 0.7；Wherein,
On the image side surface of 5th lens, except in addition to optical axes crosspoint, one section of image side surface vertical optical axis of the 5th lens is described
One point of contact of image side surface of section and the 5th lens, Yc52 are the vertical range at the point of contact and optical axis, and DT52 is described the
The effective radius of the image side surface of five lens.
When pick-up lens meets 0.3 < Yc52/DT52 of relational expression < 0.7, the 5th lens molding difficulty, modified off-axis can be reduced
Visual field aberration, while the angle that off-axis visual field is incident on photosensitive element can be effectively suppressed, be conducive to promote image quality.
The image-taking device of the utility model embodiment includes pick-up lens described in any of the above-described embodiment and photosensitive
Element.The image side of the pick-up lens is arranged in the photosensitive element.
The image-taking device of the utility model embodiment have reasonable lens configure and pick-up lens meet relational expression 1 <
R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improve image quality.
The electronic device of the utility model embodiment includes image-taking device described in shell and above embodiment.It is described
Image-taking device is installed on the housing.
The electronic device of the utility model embodiment have reasonable lens configure and pick-up lens meet relational expression 1 <
R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improve image quality.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partially will be under
Become obvious in the description in face, or is recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model can retouch embodiment from conjunction with following accompanying drawings
It will be apparent and be readily appreciated that in stating, in which:
Fig. 1 is the structural schematic diagram of the pick-up lens of the utility model first embodiment；
Fig. 2 is the longitudinal aberration diagram (mm) of pick-up lens in first embodiment；
Fig. 3 is the curvature of field figure (mm) of pick-up lens in first embodiment；
Fig. 4 is the distortion figure (%) of pick-up lens in first embodiment；
Fig. 5 is the structural schematic diagram of the pick-up lens of the utility model second embodiment；
Fig. 6 is the longitudinal aberration diagram (mm) of pick-up lens in second embodiment；
Fig. 7 is the curvature of field figure (mm) of pick-up lens in second embodiment；
Fig. 8 is the distortion figure (%) of pick-up lens in second embodiment；
Fig. 9 is the structural schematic diagram of the pick-up lens of the utility model 3rd embodiment；
Figure 10 is the longitudinal aberration diagram (mm) of pick-up lens in 3rd embodiment；
Figure 11 is the curvature of field figure (mm) of pick-up lens in 3rd embodiment；
Figure 12 is the distortion figure (%) of pick-up lens in 3rd embodiment；
Figure 13 is the structural schematic diagram of the pick-up lens of the utility model fourth embodiment；
Figure 14 is the longitudinal aberration diagram (mm) of pick-up lens in fourth embodiment；
Figure 15 is the curvature of field figure (mm) of pick-up lens in fourth embodiment；
Figure 16 is the distortion figure (%) of pick-up lens in fourth embodiment；
Figure 17 is the structural schematic diagram of the pick-up lens of the 5th embodiment of the utility model；
Figure 18 is the longitudinal aberration diagram (mm) of pick-up lens in the 5th embodiment；
Figure 19 is the curvature of field figure (mm) of pick-up lens in the 5th embodiment；
Figure 20 is the distortion figure (%) of pick-up lens in the 5th embodiment；
Figure 21 is the structural schematic diagram of the image-taking device of the utility model embodiment；With
Figure 22 is the structural schematic diagram of the electronic device of the utility model embodiment.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Also referring to Fig. 1, Fig. 5, Fig. 9, Figure 13 and Figure 17, the pick-up lens 10 of the utility model embodiment is from object side
Successively include diaphragm STO to image side, the first lens L1 with positive refracting power, the second lens L2 with negative refracting power, have
The third lens L3 of negative refracting power, the 4th lens L4 with positive refracting power and with the 5th lens L5 of negative refracting power.
It is concave surface at optical axis that first lens L1, which has object side S1 and image side surface S2, the image side surface S2 of the first lens L1,
It is convex surface at circumference.Second lens L2 has object side S3 and image side surface S4.The third lens L3 has object side S5 and image side
Face S6.It is convex surface at optical axis that 4th lens L4, which has object side S7 and image side surface S8, the image side surface S8 of the 4th lens L4, the 4th
The object side S7 and image side surface S8 of lens L4 is aspherical.5th lens L5 has object side S9 and image side surface S10, and the 5th thoroughly
The image side surface S10 of mirror L5 at optical axis be concave surface, the object side S9 and image side surface S10 of the 5th lens L5 be it is aspherical, the 5th
An at least surface has at least one point of inflexion in the object side S9 and image side surface S10 of lens L5.For example, object side S9 includes one
A, two or three points of inflexion；For another example image side surface S10 includes the one, two or three point of inflexion；For another example object side S9
Including the one, two or three point of inflexion, while image side surface S10 includes the one, two or three point of inflexion.Certainly, the point of inflexion
Quantity be not limited to one, two or three mentioned above, be also possible to other quantity such as five, six etc..
Pick-up lens 10 meets following relationship: 1 < R4/f < 1.5；Wherein, R4 is the song of the image side surface S4 of the second lens L2
Rate radius, f are the effective focal length of pick-up lens 10.In other words, R4/f can any number between section (1,1.5),
For example, the value can be 1.112,1.146,1.152,1.215,1.230,1.255,1.288,1.355 etc..
The pick-up lens 10 of the utility model embodiment has the configuration of reasonable lens and pick-up lens 10 meets relationship
Formula 1 < R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens L2, improve imaging product
Matter.
In some embodiments, pick-up lens 10 meets following relationship: 0.4 < | Ds |/D1 < 0.7；Wherein, Ds is light
For the object side S1 of late STO and the first lens L1 at a distance from optical axis, D1 is the first lens L1 in the center thickness of optical axis.Namely
To say, | Ds |/D1 can any number between section (0.4,0.7), for example, the value can for 0.463,0.533,
0.562,0.599,0.612,0.695 etc..
Pick-up lens 10 meet relational expression 0.4 < | Ds | when/D1 < 0.7, can be effectively controlled diaphragm STO's and the first lens L1
Relative position reduces the susceptibility of pick-up lens 10, and the assembling for being conducive to the first lens L1 and diaphragm STO configures.
In some embodiments, pick-up lens 10 meets following relationship: 1 < f1/f4 < 1.8；Wherein, f1 is first saturating
The focal length of mirror L1, f4 are the focal length of the 4th lens L4.In other words, f1/f4 can arbitrary number between section (1,1.8)
Value, for example, the value can be 1.155,1.265,1.432,1.512,1.572,1.581,1.678,1.730,1.799 etc..
When pick-up lens 10 meets 1 < f1/f4 of relational expression < 1.8, the first lens L1 can provide most of positive refracting power, simultaneously
4th lens L4 shares the positive refracting power in part, and the refracting power size configuration of the 4th lens L4 more balances, and can avoid pick-up lens
10 generate excessive spherical aberration, while may make that the overall length of pick-up lens 10 will not be too long.
In some embodiments, pick-up lens 10 meets following relationship: f3/ (f2+f5) > 4；Wherein, f3 is third
The focal length of lens L3, f2 are the focal length of the second lens L2, and f5 is the focal length of the 5th lens L5.In other words, f3/ (f2+f5) can
Think any number greater than 4, for example, the value can for 4.517,5.454,6.105,7.145,7.549,8.256,
11.123,17.891 etc..
When pick-up lens 10 meets relational expression f3/ (f2+f5) > 4, the third lens L3 can provide main negative refracting power, repair
The color difference of positive pick-up lens 10, the second lens L2 and the 5th lens L5 share the negative refracting power in part, are conducive to correct astigmatism, to mention
Rise image quality.
In some embodiments, pick-up lens 10 meets following relationship: f/EPD < 2.2；Wherein, EPD is camera lens
First 10 entrance pupil diameter.In other words, f/EPD can be any number less than 2.2, for example, the value can for 1.52,
1.64,1.70,1.83,1.85,1.95,2.00,2.15 etc..
When pick-up lens 10 meets relational expression f/EPD < 2.2, biggish aperture can get, to increase pick-up lens 10
Light-inletting quantity is conducive to improve the image quality under low-light level environment.
In some embodiments, pick-up lens 10 meets following relationship: 0.7 < (D12+D23)/D34 < 1.3；Wherein,
D12 is the first lens L1 and the second lens L2 in the distance of optical axis, D23 be the second lens L2 and the third lens L3 in optical axis away from
From D34 is the third lens L3 and the 4th lens L4 in the distance of optical axis.In other words, (D12+D23)/D34 can be section
Any number between (0.7,1.3), for example, the value can for 0.751,0.831,0.898,0.921,0.998,1.019,
1.121,1.212 etc..
When pick-up lens 10 meets relational expression 0.7 < (D12+D23)/D34 < 1.3, the first lens L1, the second lens L2 and
The configuration of three lens L3 spacer thicknesses is conducive to the assembling of each lens of pick-up lens 10, and can reduce the quick of pick-up lens 10
The miniaturization of pick-up lens 10 is kept while sensitivity.
In some embodiments, pick-up lens 10 satisfies the following conditional expression: | SAG41 |≤0.3, | SAG42 |≤0.8；
Wherein, the maximum of object side S7 of intersection point of the object side S7 on optical axis that SAG41 is the 4th lens L4 to the 4th lens L4 have
Radius is imitated in the horizontal displacement distance of optical axis, SAG42 be intersection point of the image side surface S8 of the 4th lens L4 on optical axis to the 4th thoroughly
The maximum effective radius of the image side surface S8 of mirror L4 is in the horizontal displacement distance of optical axis.In other words, | SAG41 | can be less than or
Any number equal to 0.3, | SAG42 | it can be any number less than or equal to 0.8, for example, | SAG41 | can be
0.012,0.222,0.240,0.261,0.277,0.289 etc., | SAG42 | can for 0.012,0.222,0.240,0.261,
0.277,0.289,0.350,0.441,0.602,0.643,0.687,0.775 etc..
Pick-up lens 10 meets relational expression | SAG41 |≤0.3 He | and SAG42 | when≤0.8, it is ensured that the object of the 4th lens L4
Side S7 and image side surface S8 will not be excessively bent, and are easy molding, to improve production yield, and can effectively be corrected pick-up lens 10
Astigmatism.
In some embodiments, pick-up lens 10 further includes optical filter L6.Optical filter L6 setting in the 5th lens L5 and
Between imaging surface S13.In the embodiments of the present invention, optical filter L6 is infrared fileter L6.When pick-up lens 10 is used
When imaging, subject is issued or the light of reflection enters pick-up lens 10 from object side direction, and sequentially passes through first thoroughly
Mirror L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6, finally converge into
On image planes S13.
In some embodiments, diaphragm STO can be aperture diaphragm or field stop.The utility model embodiment with
Diaphragm STO is illustrated for aperture diaphragm.Subject OBJ can be set between the first lens L1 in diaphragm STO, or
On the surface of any one piece of lens, or it is arranged between any two pieces of lens, or is arranged in the 5th lens L5 and infrared fileter
Between L6.For the first embodiment of the utility model embodiment into the 5th embodiment, diaphragm STO is arranged at subject
Between OBJ and the first lens L1, light-inletting quantity can be preferably controlled, promotes imaging effect.
In some embodiments, the first lens L1 to the 5th lens L5 is plastic lens or plastic lens.This is practical new
For the first embodiment of type embodiment into the 5th embodiment, the first lens L1 to the 5th lens L5 is plastic lens.In this way,
Pick-up lens 10 may be implemented to surpass in aberration correction by the reasonable disposition of the material to lens with while solving the problems, such as temperature drift
Thinning, and cost is relatively low.
In some embodiments, in pick-up lens 10 first lens L1 at least one surface of the 5th lens L5 be it is non-
Spherical surface.For example, first embodiment, into the 5th embodiment, the first lens L1 to the object side of the 5th lens L5 and image side surface is
It is aspherical.Aspherical face type is determined by following formula:Wherein, Z is aspherical takes up an official post
Some fore-and-aft distance with surface vertices, r is distance of the aspherical any point to optical axis, and c is vertex curvature (radius of curvature
It is reciprocal), k is the constant of the cone, and Ai is the correction factor of aspherical i-th-th rank.
In this way, pick-up lens 10 can be effectively reduced by the radius of curvature and asphericity coefficient of each lens surface of adjusting
The total length of pick-up lens 10, and can effectively aberration correction, improve image quality.
First embodiment
Referring to FIG. 1 to FIG. 4, from object side to image side, the pick-up lens 10 of first embodiment successively includes diaphragm STO, the
One lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is at optical axis
It is convex surface at circumference for concave surface, and is aspherical.Second lens L2 has negative refracting power, and material is plastics, object side
Face S3 is convex surface, and image side surface S4 is concave surface, and is aspherical.The third lens L3 has negative refracting power, and material is plastics,
Object side S5 is concave surface, and image side surface S6 is convex surface, and is aspherical.4th lens L4 has positive refracting power, and material is modeling
Material, object side S7 are convex surface at optical axis, are concave surface at circumference, and image side surface S8 is convex surface, and is aspherical.5th thoroughly
Mirror L5 has negative refracting power, and material is plastics, and it is convex surface, image side surface at circumference that object side S9, which is concave surface at optical axis,
S10 is concave surface at optical axis, is convex surface at circumference, and be aspherical.
The F-number FNO=1.83 of pick-up lens 10.
Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence to image
The focal length of camera lens 10.
In first embodiment, the effective focal length of pick-up lens 10 is f=3.62mm, the field angle FOV=of pick-up lens 10
77.0 degree.Pick-up lens 10 also meets the following conditions: R4/f=1.215；| Ds |/D1=0.599；F1/f4=1.678；f3/
(f2+f5)=7.549；F/EPD=1.83；(D12+D23)/D34=0.898；| SAG41 |=0.222mm；| SAG42 |=
0.643mm；Yc52/DT52=0.497.Pick-up lens 10 meets the condition of following table:
Table 1
Table 2
Second embodiment
Fig. 5 to Fig. 8 is please referred to, from object side to image side, the pick-up lens 10 of first embodiment successively includes diaphragm STO, the
One lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is at optical axis
It is convex surface at circumference for concave surface, and is aspherical.Second lens L2 has negative refracting power, and material is plastics, object side
Face S3 is concave surface at optical axis, is convex surface at circumference, and image side surface S4 is concave surface, and is aspherical.The third lens L3 has
Negative refracting power, and material is plastics, object side S5 is concave surface, and it is convex surface at circumference that image side surface S6, which is concave surface at optical axis,
It and is aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is concave surface, and image side surface S8 is
Convex surface, and be aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is concave surface, image side surface
S10 is concave surface at optical axis, is convex surface at circumference, and be aspherical.
The F-number FNO=1.85 of pick-up lens 10.
Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence to image
The focal length of camera lens 10.
Pick-up lens 10 meets the condition of following table:
Table 3
Table 4
Following data can be obtained according to table 3 and table 4:
| f(mm) | 3.66 | f3/(f2+f5) | 17.891 |
| FNO | 1.85 | f/EPD | 1.85 |
| FOV (degree) | 76.2 | (D12+D23)/D34 | 0.831 |
| R4/f | 1.230 | |SAG41|(mm) | 0.240 |
| |Ds|/D1 | 0.562 | |SAG42|(mm) | 0.602 |
| f1/f4 | 1.572 | Yc52/DT52 | 0.430 |
3rd embodiment
Fig. 9 to Figure 12 is please referred to, from object side to image side, the pick-up lens 10 of first embodiment successively includes diaphragm STO, the
One lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is at optical axis
It is convex surface at circumference for concave surface, and is aspherical.Second lens L2 has negative refracting power, and material is plastics, object side
Face S3 is convex surface, and image side surface S4 is concave surface, and is aspherical.The third lens L3 has negative refracting power, and material is plastics,
Object side S5 is convex surface at optical axis, is concave surface at circumference, and it is convex surface at circumference that image side surface S6, which is concave surface at optical axis,
It and is aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is concave surface, and image side surface S8 is
Convex surface, and be aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is recessed at optical axis
Face is convex surface at circumference, and it is convex surface at circumference, and be aspherical that image side surface S10, which is concave surface at optical axis,.
The F-number FNO=1.70 of pick-up lens 10.
Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence to image
The focal length of camera lens 10.
Pick-up lens 10 meets the condition of following table:
Table 5
Table 6
Following data can be obtained according to table 5 and table 6:
| f(mm) | 3.66 | f3/(f2+f5) | 7.145 |
| FNO | 1.70 | f/EPD | 1.70 |
| FOV (degree) | 75.8 | (D12+D23)/D34 | 1.019 |
| R4/f | 1.146 | |SAG41|(mm) | 0.261 |
| |Ds|/D1 | 0.612 | |SAG42|(mm) | 0.775 |
| f1/f4 | 1.581 | Yc52/DT52 | 0.496 |
Fourth embodiment
From object side to image side, the pick-up lens 10 of first embodiment successively include diaphragm STO, the first lens L1, second thoroughly
Mirror L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is at optical axis
It is convex surface at circumference for concave surface, and is aspherical.Second lens L2 has negative refracting power, and material is plastics, object side
Face S3 is convex surface, and image side surface S4 is concave surface, and is aspherical.The third lens L3 has negative refracting power, and material is plastics,
Object side S5 is convex surface at optical axis, is concave surface at circumference, and it is convex surface at circumference that image side surface S6, which is concave surface at optical axis,
It and is aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is concave surface, and image side surface S8 is
Convex surface, and be aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is recessed at optical axis
Face is convex surface at circumference, and it is convex surface at circumference, and be aspherical that image side surface S10, which is concave surface at optical axis,.
The F-number FNO=2.00 of pick-up lens 10.
Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence to image
The focal length of camera lens 10.
Pick-up lens 10 meets the condition of following table:
Table 7
Table 8
Following data can be obtained according to table 7 and table 8:
| f(mm) | 3.44 | f3/(f2+f5) | 4.517 |
| FNO | 2.00 | f/EPD | 2.00 |
| FOV (degree) | 80.0 | (D12+D23)/D34 | 0.921 |
| R4/f | 1.288 | |SAG41|(mm) | 0.277 |
| |Ds|/D1 | 0.463 | |SAG42|(mm) | 0.687 |
| f1/f4 | 1.512 | Yc52/DT52 | 0.527 |
5th embodiment
Please refer to Figure 17 to Figure 20, from object side to image side, the pick-up lens 10 of first embodiment successively include diaphragm STO,
First lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is at optical axis
It is convex surface at circumference for concave surface, and is aspherical.Second lens L2 has negative refracting power, and material is plastics, object side
Face S3 is convex surface, and image side surface S4 is concave surface, and is aspherical.The third lens L3 has negative refracting power, and material is plastics,
Object side S5 is convex surface at optical axis, is concave surface at circumference, and it is convex surface at circumference that image side surface S6, which is concave surface at optical axis,
It and is aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is concave surface at optical axis, in
It is convex surface at circumference, it is concave surface at circumference, and be aspherical that image side surface S8, which is convex surface at optical axis,.5th lens L5 tool
There is negative refracting power, and material is plastics, it is concave surface at circumference, image side surface S10 is in light that object side S9, which is convex surface at optical axis,
It is concave surface at axis, is convex surface at circumference, and be aspherical.
The F-number FNO=1.85 of pick-up lens 10.
Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence to image
The focal length of camera lens 10.
Pick-up lens 10 meets the condition of following table:
Table 9
Table 10
Following data can be obtained according to table 9 and table 10:
| f(mm) | 3.20 | f3/(f2+f5) | 6.105 |
| FNO | 1.85 | f/EPD | 1.85 |
| FOV (degree) | 70.0 | (D12+D23)/D34 | 1.212 |
| R4/f | 1.112 | |SAG41|(mm) | 0.012 |
| |Ds|/D1 | 0.533 | |SAG42|(mm) | 0.441 |
| f1/f4 | 1.730 | Yc52/DT52 | 0.579 |
Figure 21 is please referred to, the image-taking device 100 of the utility model embodiment includes the camera shooting of any of the above-described embodiment
Camera lens 10 and photosensitive element 20.The image side of pick-up lens 10 is arranged in photosensitive element 20.
Specifically, photosensitive element 20 can use complementary metal oxide semiconductor (CMOS, Complementary
Metal Oxide Semiconductor) imaging sensor or charge coupled cell (CCD, Charge-coupled
Device) imaging sensor.
The image-taking device 100 of the utility model embodiment has the configuration of reasonable lens and pick-up lens 10 meets relationship
Formula 1 < R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improve imaging product
Matter.
Figure 22 is please referred to, electronic device 1000 includes the image-taking device 100 of shell 200 and above embodiment.Capture dress
100 are set to be mounted on shell 200 to obtain image.
The electronic device 1000 of the utility model embodiment has the configuration of reasonable lens and pick-up lens meets relationship
Formula 1 < R4/f < 1.5 can avoid generating aberration, while can correct higher order aberratons caused by the second lens, improve imaging product
Matter.
The electronic device 100 of the utility model embodiment includes but is not limited to for smart phone, mobile phone, a number
Word assistant (Personal Digital Assistant, PDA), game machine, personal computer (personal computer,
PC), the information terminal apparatus such as camera, smartwatch, tablet computer or the household appliances with camera function etc..
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means in conjunction with the embodiment party
Formula or example particular features, structures, materials, or characteristics described be contained in the utility model at least one embodiment or
In example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more embodiments or example to close
Suitable mode combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one described feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-mentioned embodiment party
Formula is exemplary, and should not be understood as limiting the present invention, and those skilled in the art are in the utility model
Above embodiment can be changed, be modified in range, replacement and variant, the scope of the utility model by claim and
Its equivalent limits.
Claims (10)
1. a kind of pick-up lens, which is characterized in that successively include: from object side to image side
Diaphragm；
The first lens with positive refracting power, the image side surface of first lens are concave surface at optical axis, are convex surface at circumference；
The second lens with negative refracting power；
The third lens with negative refracting power；
The 4th lens with positive refracting power, the image side surface of the 4th lens are convex surface at optical axis, the 4th lens
Object side is aspherical with image side surface；With
The 5th lens with negative refracting power, the image side surface of the 5th lens are concave surface at optical axis, the 5th lens
Object side with image side surface be it is aspherical, an at least surface has at least one in the object side of the 5th lens and image side surface
The point of inflexion；
The pick-up lens satisfies the following conditional expression:
1<R4/f<1.5；
Wherein, R4 is the radius of curvature of the image side surface of second lens, and f is the effective focal length of the pick-up lens.
2. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
0.4<|Ds|/D1<0.7；
Wherein, Ds be the diaphragm with the object side of first lens at a distance from optical axis, D1 for first lens in
The center thickness of optical axis.
3. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
1<f1/f4<1.8；
Wherein, f1 is the focal length of first lens, and f4 is the focal length of the 4th lens.
4. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
f3/(f2+f5)>4；
Wherein, f3 is the focal length of the third lens, and f2 is the focal length of second lens, and f5 is the coke of the 5th lens
Away from.
5. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
f/EPD<2.2；
Wherein, EPD is the entrance pupil diameter of the pick-up lens.
6. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
0.7<(D12+D23)/D34<1.3；
Wherein, D12 is first lens and second lens in the distance of optical axis, and D23 is second lens and described
For the third lens in the distance of optical axis, D34 is the third lens and the 4th lens in the distance of optical axis.
7. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
| SAG41 |≤0.3, | SAG42 |≤0.8；
Wherein, SAG41 be the 4th lens intersection point of the object side on optical axis to the object side of the 4th lens most
Big effective radius in the horizontal displacement distance of optical axis, SAG42 for the 4th lens intersection point of the image side surface on optical axis to institute
State horizontal displacement distance of the maximum effective radius in optical axis of the image side surface of the 4th lens.
8. pick-up lens according to claim 1, which is characterized in that the pick-up lens also satisfies the following conditional expression:
0.3<Yc52/DT52<0.7；
Wherein, on the image side surface of the 5th lens, except in addition to optical axes crosspoint, the image side surface vertical optical axis one of the 5th lens
Section, one point of contact of image side surface of the section and the 5th lens, Yc52 are the vertical range at the point of contact and optical axis, DT52
For the effective radius of the image side surface of the 5th lens.
9. a kind of image-taking device, which is characterized in that the image-taking device includes:
Pick-up lens described in claim 1 to 8 any one；With
The image side of the pick-up lens is arranged in photosensitive element, the photosensitive element.
10. a kind of electronic device, which is characterized in that the electronic device includes:
Shell；With
Image-taking device as claimed in claim 9, the image-taking device installation is on the housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821360504.4U CN208654421U (en) | 2018-08-22 | 2018-08-22 | Pick-up lens, image-taking device and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360504.4U CN208654421U (en) | 2018-08-22 | 2018-08-22 | Pick-up lens, image-taking device and electronic device |
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| CN208654421U true CN208654421U (en) | 2019-03-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515178A (en) * | 2019-08-14 | 2019-11-29 | 瑞声通讯科技(常州)有限公司 | Camera optical camera lens |
| CN111025595A (en) * | 2019-12-30 | 2020-04-17 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| US11487089B2 (en) | 2020-01-16 | 2022-11-01 | Largan Precision Co., Ltd. | Image capturing optical lens assembly including five lenses of +−++− or +−−+− refractive powers, imaging apparatus and electronic device |
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2018
- 2018-08-22 CN CN201821360504.4U patent/CN208654421U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515178A (en) * | 2019-08-14 | 2019-11-29 | 瑞声通讯科技(常州)有限公司 | Camera optical camera lens |
| WO2021027022A1 (en) * | 2019-08-14 | 2021-02-18 | 诚瑞光学(常州)股份有限公司 | Photographing optical lens |
| JP2021033266A (en) * | 2019-08-14 | 2021-03-01 | エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド | Image capturing optical lens |
| CN111025595A (en) * | 2019-12-30 | 2020-04-17 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN111025595B (en) * | 2019-12-30 | 2021-09-24 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| US11487089B2 (en) | 2020-01-16 | 2022-11-01 | Largan Precision Co., Ltd. | Image capturing optical lens assembly including five lenses of +−++− or +−−+− refractive powers, imaging apparatus and electronic device |
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Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi Jingchao optics Co.,Ltd. Address before: 330096 Jiangxi Nanchang Nanchang hi tech Industrial Development Zone, east of six road, south of Tianxiang Avenue. Patentee before: OFILM TECH Co.,Ltd. |