CN208907940U - Optical camera lens group, taken module and electronic device - Google Patents
Optical camera lens group, taken module and electronic device Download PDFInfo
- Publication number
- CN208907940U CN208907940U CN201821652533.8U CN201821652533U CN208907940U CN 208907940 U CN208907940 U CN 208907940U CN 201821652533 U CN201821652533 U CN 201821652533U CN 208907940 U CN208907940 U CN 208907940U
- Authority
- CN
- China
- Prior art keywords
- lens group
- optical camera
- camera lens
- lens
- object side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 199
- 238000003384 imaging method Methods 0.000 claims description 17
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 30
- 229920003023 plastic Polymers 0.000 description 19
- 239000004033 plastic Substances 0.000 description 19
- 230000004075 alteration Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 201000009310 astigmatism Diseases 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004304 visual acuity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 102220015659 rs201107982 Human genes 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Abstract
The utility model discloses a kind of optical camera lens group, taken module and electronic devices.Optical camera lens group successively includes by object side to image side: diaphragm, the first lens with positive refracting power, the second lens, the third lens with positive refracting power and the 4th lens.The object side of first lens is convex surface.The image side surface of second lens is concave surface.The object side of the third lens is concave surface, and image side surface is convex surface.The object side of 4th lens is aspherical with image side surface, and at least one surface has at least one point of inflexion in its object side and image side surface.Optical camera lens group satisfies the following conditional expression: 0.8≤Sd21/Sd11≤0.9.The optical camera lens group of the utility model embodiment can be realized high pixel, reduce cost.In addition, diaphragm is located at before the first lens, is conducive to reduce chief ray incidence angles, increases the sensitivity of photosensitive element, improve illuminance；When meeting 0.8≤Sd21/Sd11 of conditional≤0.9, be conducive to the miniaturization of optical camera lens group, and guarantee there is biggish aperture.
Description
Technical field
The utility model relates to optical image technology field, in particular to a kind of optical camera lens group, taken module and
Electronic device.
Background technique
Under current industry background, in order to obtain high pixel, five chips or six chip optical camera lens are generallyd use
Group.Compared with four-piece type optical camera lens group, the design of five chips can preferably correct aberration, guarantee good image quality；
But it is difficult to take into account shorter optics overall length simultaneously.Opposite, cost also can be higher.With science and technology flourish, pixel it is fast
Speed is promoted, and user increasingly tends to the pick-up lens of small and light.Therefore, it is badly in need of a kind of camera lens that can reduce cost to set
Meter, while meeting high pixel request, it is contemplated that the feasibility of production and processing.
Utility model content
The utility model embodiment provides a kind of optical camera lens group, taken module and electronic device.
In order to not only be able to achieve high pixel but also can reduce cost, we use four-piece type optical camera lens group.On the one hand,
The aberration of two lens and the 4th lens or the positive or negative adjustable system of refracting power guarantees image quality.On the other hand, third
While providing positive refracting power, inclination angle will not excessively increase lens, and face type is also controlled in the degree for being conducive to processing.With other four
Chip optical camera lens group is compared, and the four-piece type optical camera lens group of the utility model embodiment is in optical transfer function
It ensure that eyeglass lower susceptibility while more demanding, yield is guaranteed in actual production, maintains lower cost.
In addition, there is relatively large space in the air gap in this optical camera lens group, also have in terms of continuing to shorten lens group overall length
Certain elasticity and advantage.
The optical camera lens group of the utility model embodiment successively includes by object side to image side: diaphragm has and just bends
Roll over the first lens, the second lens, the third lens with positive refracting power and the 4th lens of power.The object side of first lens
For convex surface, image side surface is concave surface at optical axis.The object side of second lens is convex surface at optical axis, and image side surface is concave surface.
The object side of the third lens is concave surface, and image side surface is convex surface.The object side of 4th lens is convex surface at optical axis, as
Side is concave surface at optical axis.The object side of 4th lens is aspherical with image side surface, and its object side and image side surface
In at least one surface have at least one point of inflexion.The optical camera lens group satisfies the following conditional expression: 0.8≤Sd21/
Sd11≤0.9；Wherein, Sd21 is the height at the object side maximum effective diameter of second lens relative to optical axis, Sd11
For the height at the object side maximum effective diameter of first lens relative to optical axis.
The four-piece type optical camera lens group of the utility model embodiment can be realized five chips or six chip optics are taken the photograph
The high pixel that can be only achieved as lens group.Moreover, advantageously reducing cost using the optical camera lens group of four-piece type.In addition,
The diaphragm of the utility model embodiment is located at before the first lens, is conducive to reduce chief ray incidence angles, increases photosensitive element
Sensitivity improves illuminance；Further, when optical camera lens group meets 0.8≤Sd21/Sd11 of conditional≤0.9, favorably
It is minimized in optical camera lens group, and can guarantee that optical camera lens group has biggish aperture.
In some embodiments, the optical camera lens group satisfies the following conditional expression: T12/ (CT1+CT2)≤
0.32；Wherein, T12 be first lens image side surface to the object side of second lens in the distance on optical axis, CT1 is
For first lens in the thickness on optical axis, CT2 is second lens in the thickness on optical axis.
When meeting the above conditions, the susceptibility of optical camera lens group can be reduced, guarantees higher image quality, and can
To meet the needs of lightening and miniaturization.
In some embodiments, the optical camera lens group satisfies the following conditional expression: 2 < | R6+R7 |/| R6-R7 | <
6；Wherein, R6 is the radius of curvature of the object side of the third lens, and R7 is the radius of curvature of the image side surface of the third lens.
When meeting the above conditions, optical camera lens group can be advantageously reduced to avoid the third lens overbending
Susceptibility, it is easier to manufacture.
In some embodiments, the optical camera lens group satisfies the following conditional expression: TTL/ImgH≤1.6；Wherein,
TTL be first lens object side to imaging surface in the distance on optical axis, ImgH be the optical camera lens group most
Big imaging height.
When meeting the above conditions, optical camera lens group can not only meet high pixel, but also be able to satisfy miniature requirement.
In some embodiments, the optical camera lens group satisfies the following conditional expression: 0.8 < f1/f < 1.5；Wherein,
F1 is the focal length of first lens, and f is the focal length of the optical camera lens group.
When meeting the above conditions, the first lens share most of positive refracting power, the positive refracting power of the first lens of reasonable distribution
Size, it is ensured that good image quality.
In some embodiments, the optical camera lens group satisfies the following conditional expression: 0.5 < T23/T34 < 1.2；Its
In, T23 be second lens image side surface to the object side of the third lens in the distance on optical axis, T34 is described the
The image side surface of three lens is to the object side of the 4th lens in the distance on optical axis.
When meeting the above conditions, the susceptibility of optical camera lens group can reduce, be conducive to promote product yield.
In some embodiments, the optical camera lens group satisfies the following conditional expression: | f3/f4 | < 2；Wherein, f3 is
The focal length of the third lens, f4 are the focal length of the 4th lens.
When meeting the above conditions, the third lens share a part of positive refracting power, and it is negative in the wrong that the 4th lens provide sub-fraction
Power or positive refracting power are rolled over to compensate the aberration that the third lens and preceding two panels lens group generate, and improve resolving power.
In some embodiments, the optical camera lens group satisfies the following conditional expression: | f3/f4 | < 0.8；Wherein, f3
For the focal length of the third lens, f4 is the focal length of the 4th lens.
When meeting the above conditions, the third lens share a part of positive refracting power, and it is negative in the wrong that the 4th lens provide sub-fraction
Power or positive refracting power are rolled over to compensate the aberration that the third lens and preceding two panels lens group generate, and improve resolving power.
In some embodiments, the optical camera lens group satisfies the following conditional expression: 0.4 < R5/f12 < 0.9；Its
In, R5 is the radius of curvature of the image side surface of second lens, and f12 is the group focus of first lens and second lens
Away from.
When meeting the above conditions, the optics overall length of optical camera lens group imaging can be effectively shortened, and then meet
Miniature requirement.
The taken module of the utility model embodiment, including optical camera lens group described in any of the above-described embodiment
And photosensitive element.The photosensitive element is set to the image side of the optical camera lens group.
In the taken module of the utility model embodiment, four-piece type optical camera lens group can be realized five chips or six
The high pixel that chip optical camera lens group can be only achieved.Moreover, being advantageously reduced using the optical camera lens group of four-piece type
Cost.In addition, the diaphragm of the utility model embodiment is located at before the first lens, is conducive to reduce chief ray incidence angles, increase
The sensitivity of photosensitive element improves illuminance；Further, optical camera lens group meet 0.8≤Sd21/Sd11 of conditional≤
When 0.9, be conducive to the miniaturization of optical camera lens group, and can guarantee that optical camera lens group has biggish aperture.
The electronic device of the utility model embodiment includes taken module described in shell and above embodiment.It is described
Taken module is mounted on the shell.
In the electronic device of the utility model embodiment, four-piece type optical camera lens group can be realized five chips or six
The high pixel that chip optical camera lens group can be only achieved.Moreover, being advantageously reduced using the optical camera lens group of four-piece type
Cost.In addition, the diaphragm of the utility model embodiment is located at before the first lens, is conducive to reduce chief ray incidence angles, increase
The sensitivity of photosensitive element improves illuminance；Further, optical camera lens group meet 0.8≤Sd21/Sd11 of conditional≤
When 0.9, be conducive to the miniaturization of optical camera lens group, and can guarantee that optical camera lens group has biggish aperture.
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 optical camera lens group of the utility model embodiment one；
Fig. 2 to Fig. 4 is the spherical aberration figure (mm) of the optical camera lens group of the utility model embodiment one, astigmatism figure respectively
(mm) and distortion figure (%)；
Fig. 5 is the structural schematic diagram of the optical camera lens group of the utility model embodiment two；
Fig. 6 to Fig. 8 is the spherical aberration figure (mm) of the optical camera lens group of the utility model embodiment two, astigmatism figure respectively
(mm) and distortion figure (%)；
Fig. 9 is the structural schematic diagram of the optical camera lens group of the utility model embodiment three；
Figure 10 to Figure 12 is the spherical aberration figure (mm) of the optical camera lens group of the utility model embodiment three, astigmatism figure respectively
(mm) and distortion figure (%)；
Figure 13 is the structural schematic diagram of the optical camera lens group of the utility model embodiment four；
Figure 14 to Figure 16 is the spherical aberration figure (mm) of the optical camera lens group of the utility model embodiment four, astigmatism figure respectively
(mm) and distortion figure (%)；
Figure 17 is the structural schematic diagram of the optical camera lens group of the utility model embodiment five；
Figure 18 to Figure 20 is the spherical aberration figure (mm) of the optical camera lens group of the utility model embodiment five, astigmatism figure respectively
(mm) and distortion figure (%)；
Figure 21 is the structural schematic diagram of the taken module of the utility model embodiment；
Figure 22 is the structural schematic diagram of the electronic device of the utility model embodiment；
Figure 23 is another 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.
Term " first ", " second " are used for description purposes only in the description of the present invention, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more feature." multiple " in the description of the present invention,
It is meant that two or more, unless otherwise specifically defined.
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.
Fig. 1, Fig. 5, Fig. 9, Figure 13 and Figure 17 are please referred to, the optical camera lens group 10 of the utility model embodiment is by object
Side to image side successively includes: diaphragm STO, the first lens L1 with positive refracting power, the second lens L2, with positive refracting power
Three lens L3 and the 4th lens L4.
The object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface at optical axis.The object side of second lens L2
S3 is convex surface at optical axis, and image side surface S4 is concave surface.The object side S5 of the third lens L3 is concave surface, and image side surface S6 is convex surface.The
The object side S7 of four lens L4 is convex surface at optical axis, and image side surface S8 is concave surface at optical axis.The object side S7 of 4th lens L4
It is aspherical with image side surface S8, and at least one surface has at least one point of inflexion in its object side S7 and image side surface S8.
Optical camera lens group 10 satisfies the following conditional expression: 0.8≤Sd21/Sd11≤0.9；Wherein, Sd21 is second saturating
Height at the object side S3 maximum effective diameter of mirror L2 relative to optical axis, Sd11 are that the object side S1 maximum of the first lens L1 has
Imitate the height at diameter relative to optical axis.Specifically, in some instances, Sd21/Sd11 can with value be 0.800,0.832,
0.900,0.805,0.865 or other numerical value greater than 0.8 and less than 0.9.
The four-piece type optical camera lens group 10 of the utility model embodiment can be realized five chips or six chip optics
The high pixel that pick-up lens group can be only achieved.Moreover, advantageously reducing cost using the optical camera lens group 10 of four-piece type.
In addition, the diaphragm STO of the utility model embodiment is located at before the first lens L1, is conducive to reduce chief ray incidence angles, increase
The sensitivity of photosensitive element (photosensitive element 20 as shown in figure 21) improves illuminance；Further, optical camera lens group 10
When meeting 0.8≤Sd21/Sd11 of conditional≤0.9, be conducive to the miniaturization of optical camera lens group 10, and can guarantee optical camera
Lens group 10 has biggish aperture.
It is appreciated that optical camera lens group 10 has biggish aperture, light-inletting quantity can be increased, so that optical camera lens
10 imaging of group is apparent.
Further, the light that the setting point of inflexion can effectively suppress off-axis visual field on the 4th lens L4 is incident in such as figure
Angle on photosensitive element 20 shown in 21, so that the aberration of modified off-axis visual field, improves image quality.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: TTL/ImgH≤1.6；Wherein,
TTL is the object side S1 to imaging surface S11 of the first lens L1 in the distance on optical axis, ImgH be optical camera lens group 10 most
Big imaging height.
When meeting the above conditions, optical camera lens group 10 can not only meet high pixel, but also be able to satisfy miniature requirement.Tool
Body, in some instances, TTL/ImgH with value can be 1.466,1.432,1.363,1.554,1.600 or less than 1.6
Other numerical value.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: 2 < | R6+R7 |/| R6-R7 | < 6；
Wherein, R6 is the radius of curvature of the object side S5 of the third lens L3, and R7 is the radius of curvature of the image side surface S6 of the third lens L3.
When meeting the above conditions, optical camera lens group can be advantageously reduced to avoid the third lens L3 overbending
10 susceptibility, it is easier to manufacture.Specifically, in some instances, | R6+R7 |/| R6-R7 | can be 2.213 with value,
2.632,3.637,3.706,5.945,4.491 or other numerical value greater than 2 and less than 6.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: T12/ (CT1+CT2)≤0.32；
Wherein, T12 is the object side S3 of the lens L2 of image side surface S2 to second of the first lens L1 in the distance on optical axis, CT1 first
For lens L1 in the thickness on optical axis, CT2 is the second lens L2 in the thickness on optical axis.
When meeting the above conditions, the susceptibility of optical camera lens group 10 can be reduced, guarantees higher image quality, and
It can satisfy lightening and miniaturization demand.Specifically, in some instances, T12/ (CT1+CT2) can be with value
0.167,0.160,0.309,0.179,0.320 or other numerical value less than 0.32.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: 0.8 < f1/f < 1.5；Wherein, f1
For the focal length of the first lens L1, f is the focal length of optical camera lens group 10.
When meeting the above conditions, the first lens L1 shares most of positive refracting power, and the first lens of reasonable distribution L1 is just bent
Roll over the size of power, it is ensured that good image quality.Specifically, in some instances, f1/f can with value be 1.008,
0.905,1.184,1.291,1.475 or other numerical value greater than 0.8 and less than 1.5.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: 0.5 < T23/T34 < 1.2；Wherein,
For the object side S5 that T23 is the image side surface S4 to the third lens L3 of the second lens L2 in the distance on optical axis, T34 is the third lens L3
Image side surface S6 to the 4th lens L4 object side S7 in the distance on optical axis.
When meeting the above conditions, the susceptibility of optical camera lens group 10 can reduce, be conducive to promote product yield.
Specifically, in some instances, T23/T34 can with value be 0.837,0.556,0.785,1.089,1.097 or be greater than 0.5 and
Other numerical value less than 1.2.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: | f3/f4 | < 2；Wherein, f3
The focal length of three lens L3, f4 are the focal length of the 4th lens L4.
When meeting the above conditions, the third lens L3 shares a part of positive refracting power, and the 4th lens L4 provides sub-fraction
Negative refracting power or positive refracting power improve resolving power come the aberration for compensating the third lens L3 and preceding two panels lens group generates.Specifically,
In some instances, | f3/f4 | it can be with value for 1.980,1.733,1.635,1.342,0.752,0.454,0.204,0.679
Or other numerical value less than 2.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: | f3/f4 | < 0.8；Wherein, f3 is
The focal length of the third lens L3, f4 are the focal length of the 4th lens L4.
When meeting the above conditions, the third lens L3 shares a part of positive refracting power, and the 4th lens L4 provides sub-fraction
Negative refracting power or positive refracting power improve resolving power come the aberration for compensating the third lens L3 and preceding two panels lens group generates.Specifically,
In some instances, | f3/f4 | it can be with value for 0.752,0.454,0.204,0.679 or other numerical value less than 0.8.
In some embodiments, optical camera lens group 10 satisfies the following conditional expression: 0.4 < R5/f12 < 0.9；Wherein,
R5 is the radius of curvature of the image side surface S4 of the second lens L2, and f12 is the combined focal length of the first lens L1 and the second lens L2.
When meeting the above conditions, the optics overall length of 10 imaging of optical camera lens group can be effectively shortened, Jin Erman
Sufficient miniature requirement.Specifically, in some instances, R5/f12 can with value be 0.406,0.670,0.824,0.443,
0.505 or other numerical value greater than 0.4 and less than 0.9.
In some embodiments, optical camera lens group 10 further includes optical filter.In the embodiments of the present invention
In, optical filter is infrared fileter L5.Infrared fileter L5 includes object side S9 and image side surface S10.Infrared fileter L5 setting
In the image side of the 4th lens L4.When optical camera lens group 10 for be imaged when, subject issue or reflection light from
Object side direction enters optical camera lens group 10, and sequentially passes through the first lens L1, the second lens L2, the third lens L3, the 4th
Lens L4 and infrared fileter L5, finally converges on imaging surface S11.
Aspherical face shape is determined by following formula:
Wherein, h is height of the aspherical any point to optical axis, and c is vertex curvature, and k is conic constants, and Ai is aspherical
The correction factor of i-th-th rank.
The utility model will cooperate appended attached drawing to be described in detail by following specific embodiments.
Embodiment one:
It include the first lens from object side to image side referring to FIG. 1 to FIG. 4, in the optical camera lens group 10 of the present embodiment
L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter L5.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is concave surface,
It and is all aspherical.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is convex surface at optical axis, in
It is concave surface at circumference, image side surface S4 is concave surface, and is all aspherical.The third lens L3 has positive refracting power, and material is plastics,
Its object side S5 is concave surface, and image side surface S6 is convex surface, and is all aspherical.4th lens L4 has negative refracting power, and material is
Plastics, object side S7 are convex surface at optical axis, are concave surface at circumference, image side surface S8 is concave surface at optical axis, at circumference
It for convex surface, and is all aspherical.
Diaphragm STO is arranged between subject and the first lens L1.The F-number FNO=of optical camera lens group 10
2.20。
Infrared fileter L5 is glass material, is arranged between the 4th lens L4 and imaging surface S11 and does not influence optics
The focal length of pick-up lens group 10.
In embodiment one, the effective focal length of optical camera lens group 10 is f=3.74mm, the light of optical camera lens group 10
Circle number is FNO=2.20, and the field angle of optical camera lens group 10 is FOV=74.0 degree.The object side S1 of first lens L1 is extremely
Imaging surface S11 is in the distance TTL=4.30mm on optical axis.Optical camera lens group 10 meets the following conditions: Sd21/Sd11=
0.832, TTL/ImgH=1.466, | R6+R7 |/| R6-R7 |=3.637, T12/ (CT1+CT2)=0.167, f1/f=
1.008, T23/T34=0.837, | f3/f4 |=0.752, R5/f12=0.406.Optical camera lens group 10 also meets following
The condition of table:
Table 1
Table 2
Embodiment two:
It please refers to Fig. 5 to Fig. 8, includes the first lens from object side to image side in the optical camera lens group 10 of the present embodiment
L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter L5.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is concave surface,
It and is all aspherical.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is convex surface at optical axis, in
It is concave surface at circumference, image side surface S4 is concave surface, and is all aspherical.The third lens L3 has positive refracting power, and material is plastics,
Its object side S5 is concave surface, and image side surface S6 is convex surface, and is all aspherical.4th lens L4 has negative refracting power, and material is
Plastics, object side S7 are convex surface at optical axis, are concave surface at circumference, image side surface S8 is concave surface at optical axis, at circumference
It for convex surface, and is all aspherical.
Diaphragm STO is arranged between subject and the first lens L1.The F-number FNO=of optical camera lens group 10
2.0。
Infrared fileter L5 is glass material, is arranged between the 4th lens L4 and imaging surface S11 and does not influence optics
The focal length of pick-up lens group 10.Optical camera lens group 10 also meets the condition of following table:
Table 3
Table 4
Following data can be obtained according to table 3 and table 4:
| f(mm) | 4.01 | |R6+R7|/|R6-R7| | 3.706 |
| FNO | 2.0 | T12/(CT1+CT2) | 0.160 |
| FOV (degree) | 71.0 | f1/f | 0.905 |
| TTL(mm) | 4.20 | T23/T34 | 0.556 |
| Sd21/Sd11 | 0.832 | |f3/f4| | 1.733 |
| TTL/ImgH | 1.432 | R5/f12 | 0.670 |
Embodiment three:
It please refers to Fig. 9 to Figure 12, includes the first lens from object side to image side in the optical camera lens group 10 of the present embodiment
L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter L5.
First lens L1 has positive refracting power, and material is plastics, and object side S1 is convex surface, and image side surface S2 is concave surface,
It and is all aspherical.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is convex surface at optical axis, in
It is concave surface at circumference, image side surface S4 is concave surface, and is all aspherical.The third lens L3 has positive refracting power, and material is plastics,
Its object side S5 is concave surface, and image side surface S6 is convex surface, and is all aspherical.4th lens L4 has negative refracting power, and material is
Plastics, object side S7 are convex surface, and it is convex surface at circumference, and be all aspherical that image side surface S8, which is concave surface at optical axis,.
Diaphragm STO is arranged between subject and the first lens L1.The F-number FNO=of optical camera lens group 10
1.80。
Infrared fileter L5 is glass material, is arranged between the 4th lens L4 and imaging surface S11 and does not influence optics
The focal length of pick-up lens group 10.Optical camera lens group 10 also meets the condition of following table:
Table 5
Table 6
Following data can be obtained according to table 5 and table 6:
Example IV:
It please refers to Figure 13 to Figure 16, includes first thoroughly from object side to image side in the optical camera lens group 10 of the present embodiment
Mirror L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter L5.
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 all 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 all aspherical.The third lens L3 has positive refracting power, and material is plastics,
Object side S5 is concave surface, and image side surface S6 is convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is modeling
Material, object side S7 are convex surface, and it is convex surface at circumference, and be all aspherical that image side surface S8, which is concave surface at optical axis,.
Diaphragm STO is arranged between subject and the first lens L1.The F-number FNO=of optical camera lens group 10
1.6。
Infrared fileter L5 is glass material, is arranged between the 4th lens L4 and imaging surface S11 and does not influence optics
The focal length of pick-up lens group 10.Optical camera lens group 10 also meets the condition of following table:
Table 7
Table 8
Following data can be obtained according to table 7 and table 8:
| f(mm) | 3.54 | |R6+R7|/|R6-R7| | 5.945 |
| FNO | 1.6 | T12/(CT1+CT2) | 0.179 |
| FOV (degree) | 76.86 | f1/f | 1.291 |
| TTL(mm) | 4.56 | T23/T34 | 1.089 |
| Sd21/Sd11 | 0.805 | |f3/f4| | 0.204 |
| TTL/ImgH | 1.554 | R5/f12 | 0.443 |
Embodiment five:
It please refers to Figure 17 to Figure 20, includes first thoroughly from object side to image side in the optical camera lens group 10 of the present embodiment
Mirror L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter L5.
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 all aspherical.Second lens L2 has positive refracting power, and material is plastics, object side
Face S3 is convex surface at optical axis, is concave surface at circumference, and image side surface S4 is concave surface, and is all aspherical.The third lens L3 has
Positive refracting power, and material is plastics, object side S5 is concave surface, and image side surface S6 is convex surface, and is all aspherical.4th lens L4
With positive refracting power, and material is plastics, and object side S7 is convex surface, and image side surface S8 is concave surface at optical axis, is at circumference
Convex surface, and be all aspherical.
Diaphragm STO is arranged between subject and the first lens L1.The F-number FNO=of optical camera lens group 10
1.5。
Infrared fileter L5 is glass material, is arranged between the 4th lens L4 and imaging surface S11 and does not influence optics
The focal length of pick-up lens group 10.Optical camera lens group 10 also meets the condition of following table:
Table 9
Table 10
Following data can be obtained according to table 9 and table 10:
| f(mm) | 3.16 | |R6+R7|/|R6-R7| | 4.491 |
| FNO | 1.5 | T12/(CT1+CT2) | 0.219 |
| FOV (degree) | 83.0 | f1/f | 1.475 |
| TTL(mm) | 4.1 | T23/T34 | 1.097 |
| Sd21/Sd11 | 0.832 | |f3/f4| | 0.679 |
| TTL/ImgH | 1.398 | R5/f12 | 0.505 |
Fig. 1 and Figure 21 are please referred to, the taken module 100 of the utility model embodiment includes any of the above-described embodiment
Optical camera lens group 10 and photosensitive element 20.Photosensitive element 20 is set to the image side of optical camera lens group 10.
In the taken module 100 of the utility model embodiment, four-piece type optical camera lens group 10 can be realized five
The high pixel that formula or six chip optical camera lens groups can be only achieved.Moreover, being had using the optical camera lens group 10 of four-piece type
Conducive to reducing cost.In addition, the diaphragm STO of the utility model embodiment is located at before the first lens L1, be conducive to reduce key light
Line incidence angle increases the sensitivity of photosensitive element 20, improves illuminance；Further, optical camera lens group 10 meets condition
When 0.8≤Sd21/Sd11 of formula≤0.9, be conducive to the miniaturization of optical camera lens group 10, and can guarantee optical camera lens group 10
There is biggish aperture.
Specifically, photosensitive element 20 can use complementary metal oxide semiconductor (Complementary Metal
Oxide Semiconductor, CMOS) imaging sensor or charge coupled cell (Charge-coupled Device,
CCD) imaging sensor.
Further, in the embodiment of Figure 21, taken module 100 further includes lens barrel 30, microscope base 40 and circuit board 50,
Photosensitive element 20 is arranged in circuit board 50 and is electrically connected with circuit board 50, and the setting of microscope base 40 connects mirror in circuit board 50, lens barrel 30
Seat 40, optical camera lens group 10 are arranged in lens barrel 30.
Figure 22 and Figure 23 are please referred to, the electronic device 1000 of the utility model embodiment includes shell 200 and above-mentioned reality
Apply the taken module 100 of mode.Taken module 100 is mounted on shell 200.
In the electronic device 1000 of the utility model embodiment, four-piece type optical camera lens group can be realized five chips
Or the six high pixel that can be only achieved of chip optical camera lens group.Moreover, being conducive to using the optical camera lens group of four-piece type
Reduce cost.In addition, the diaphragm of the utility model embodiment is located at before the first lens, be conducive to reduce chief ray incidence angles,
Increase the sensitivity of photosensitive element (photosensitive element 20 as shown in figure 21), improves illuminance；Further, optical camera lens
When group meets 0.8≤Sd21/Sd11 of conditional≤0.9, be conducive to the miniaturization of optical camera lens group, and can guarantee optical camera
Lens group has biggish aperture.
It is appreciated that the electronic device 1000 of the utility model embodiment includes but is not limited to be smart phone, plate
Computer, laptop, digital still camera, electronic book readers, portable multimedia player (PMP), portable medical dress
It sets, information terminal apparatus or the electronic device with camera function such as intelligent wearable device.In the example of Figure 22, electronics dress
1000 are set as smart phone.In the example of Figure 23, electronic device 1000 is laptop.Taken module 100 may be provided at
The back side of electronic device 1000 may also be arranged on the front of electronic device 1000.
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 (11)
1. a kind of optical camera lens group, which is characterized in that successively include by object side to image side:
One diaphragm；
One the first lens with positive refracting power, object side are convex surface, and image side surface is concave surface at optical axis；
One second lens, object side are convex surface at optical axis, and image side surface is concave surface；
One the third lens with positive refracting power, object side are concave surface, and image side surface is convex surface；
One the 4th lens, object side are convex surface at optical axis, and image side surface is concave surface, object side and image side surface at optical axis
It is aspherical, and at least one surface has at least one point of inflexion in its object side and image side surface；
The optical camera lens group satisfies the following conditional expression:
0.8≤Sd21/Sd11≤0.9；
Wherein, Sd21 is the height at the object side maximum effective diameter of second lens relative to optical axis, and Sd11 is described
Height at the object side maximum effective diameter of first lens relative to optical axis.
2. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
T12/(CT1+CT2)≤0.32；
Wherein, T12 be first lens image side surface to the object side of second lens in the distance on optical axis, CT1 is
For first lens in the thickness on optical axis, CT2 is second lens in the thickness on optical axis.
3. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
2<|R6+R7|/|R6-R7|<6；
Wherein, R6 is the radius of curvature of the object side of the third lens, and R7 is the curvature half of the image side surface of the third lens
Diameter.
4. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
TTL/ImgH≤1.6；
Wherein, TTL be first lens object side to imaging surface in the distance on optical axis, ImgH is the optical camera lens
The maximum image height of head group.
5. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
0.8<f1/f<1.5；
Wherein, f1 is the focal length of first lens, and f is the focal length of the optical camera lens group.
6. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
0.5<T23/T34<1.2；
Wherein, T23 be second lens image side surface to the object side of the third lens in the distance on optical axis, T34 is
The image side surface of the third lens is to the object side of the 4th lens in the distance on optical axis.
7. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
|f3/f4|<2；
Wherein, f3 is the focal length of the third lens, and f4 is the focal length of the 4th lens.
8. optical camera lens group as claimed in claim 7, which is characterized in that the optical camera lens group meets following item
Part formula:
|f3/f4|<0.8。
9. optical camera lens group as described in claim 1, which is characterized in that the optical camera lens group meets following item
Part formula:
0.4<R5/f12<0.9；
Wherein, R5 is the radius of curvature of the image side surface of second lens, and f12 is first lens and second lens
Combined focal length.
10. a kind of taken module characterized by comprising
Optical camera lens group described in claim 1 to 9 any one；With
The image side of the optical camera lens group is arranged in photosensitive element, the photosensitive element.
11. a kind of electronic device characterized by comprising
Shell；With
Taken module described in any one of claim 10, the taken module are mounted on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821652533.8U CN208907940U (en) | 2018-10-11 | 2018-10-11 | Optical camera lens group, taken module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821652533.8U CN208907940U (en) | 2018-10-11 | 2018-10-11 | Optical camera lens group, taken module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208907940U true CN208907940U (en) | 2019-05-28 |
Family
ID=66614197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821652533.8U Expired - Fee Related CN208907940U (en) | 2018-10-11 | 2018-10-11 | Optical camera lens group, taken module and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208907940U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073983A1 (en) * | 2018-10-11 | 2020-04-16 | 南昌欧菲精密光学制品有限公司 | Optical photography lens assembly, imaging module, and electronic device |
| TWI717161B (en) * | 2019-12-20 | 2021-01-21 | 大立光電股份有限公司 | Optical lens assembly, image capturing unit and electronic device |
| WO2021142608A1 (en) * | 2020-01-14 | 2021-07-22 | 南昌欧菲精密光学制品有限公司 | Optical imaging system, image capturing device having same, and electronic device |
| CN113281880A (en) * | 2021-05-10 | 2021-08-20 | 江西晶超光学有限公司 | Imaging system, lens module and electronic equipment |
-
2018
- 2018-10-11 CN CN201821652533.8U patent/CN208907940U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073983A1 (en) * | 2018-10-11 | 2020-04-16 | 南昌欧菲精密光学制品有限公司 | Optical photography lens assembly, imaging module, and electronic device |
| TWI717161B (en) * | 2019-12-20 | 2021-01-21 | 大立光電股份有限公司 | Optical lens assembly, image capturing unit and electronic device |
| US11662551B2 (en) | 2019-12-20 | 2023-05-30 | Largan Precision Co., Ltd. | Optical lens assembly, image capturing unit and electronic device |
| WO2021142608A1 (en) * | 2020-01-14 | 2021-07-22 | 南昌欧菲精密光学制品有限公司 | Optical imaging system, image capturing device having same, and electronic device |
| CN113281880A (en) * | 2021-05-10 | 2021-08-20 | 江西晶超光学有限公司 | Imaging system, lens module and electronic equipment |
| CN113281880B (en) * | 2021-05-10 | 2022-08-23 | 江西晶超光学有限公司 | Imaging system, lens module and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105242380B (en) | Photographing optical system, image capturing device and mobile terminal | |
| CN104516093B (en) | Optical imaging lens system, image capturing device and mobile terminal | |
| CN104656228B (en) | Photographing Lens Assembly, Image Capturing Device And Mobile Terminal | |
| CN107132638B (en) | Optical image lens assembly, image capturing device and electronic device | |
| CN208907940U (en) | Optical camera lens group, taken module and electronic device | |
| CN106443986B (en) | Image capturing lens assembly, image capturing device and electronic device | |
| CN107450160B (en) | Image capturing optical lens assembly, image capturing device and electronic device | |
| CN106443987B (en) | Optical system for image pickup, image capturing device and electronic device | |
| CN106990506B (en) | Imaging optical lens assembly and image capturing device | |
| CN104730695B (en) | Optical lens assembly for imaging, image capturing device and mobile terminal | |
| CN105278076B (en) | Image capturing optical lens system | |
| CN105700119B (en) | Imaging lens system, image capturing device and electronic device | |
| CN109407272A (en) | Electronic device | |
| CN104155742A (en) | Optical image pickup system | |
| CN105022144A (en) | Image capturing optical lens assembly, image capturing device and mobile terminal | |
| CN108983397B (en) | Image capturing lens assembly and image capturing device | |
| CN208795916U (en) | Optical camera lens group, taken module and electronic device | |
| CN208654422U (en) | Phtographic lens, image-taking device and electronic device | |
| CN105988200B (en) | Imaging system, image-taking device and electronic device | |
| CN106154512B (en) | Pick-up lens group, image-taking device and electronic device | |
| CN111045190A (en) | Optical camera lens assembly, image capturing module and electronic device | |
| CN110967805B (en) | Optical camera lens assembly, image capturing module and electronic device | |
| CN208654421U (en) | Pick-up lens, image-taking device and electronic device | |
| CN110262016A (en) | Optical imaging system | |
| CN110109234A (en) | Optical imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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: NANCHANG OUFEI PRECISION OPTICAL PRODUCT Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |