CN209215716U - Optical imaging lens group - Google Patents
Optical imaging lens group Download PDFInfo
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- CN209215716U CN209215716U CN201821963464.2U CN201821963464U CN209215716U CN 209215716 U CN209215716 U CN 209215716U CN 201821963464 U CN201821963464 U CN 201821963464U CN 209215716 U CN209215716 U CN 209215716U
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Abstract
This application discloses a kind of optical imaging lens group, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens by object side to image side along optical axis.First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；Second lens have negative power, and image side surface is concave surface；The third lens have positive light coke, and object side is convex surface；4th lens have focal power；5th lens have focal power；6th lens have focal power, and object side is convex surface, and image side surface is concave surface；7th lens have positive light coke；8th lens have focal power；And total effective focal length f of optical imaging lens group and the Entry pupil diameters EPD of optical imaging lens group meet f/EPD < 1.4.
Description
Technical field
This application involves a kind of optical imaging lens groups, more specifically, this application involves a kind of light including eight lens
Learn imaging lens group.
Background technique
Currently, it is saturating to have gradually appeared different types of optical imagery in the market in order to meet the requirement of plurality of application scenes
Microscope group.For example, be suitble to the focal length optical lens group that is imaged at a distance, applied to the ultra thin optical lens group of ultra thin handset fuselage,
The ultra-wide angle optical lens group of be suitble to wide-angle image and be applied to ball-screen projection, vehicle-mounted security-monitoring etc. and suitable dim light item
High-aperture optical lens group of part blur-free imaging etc..Wherein, high-aperture optical imaging lens group has the advantage that and facilitates
Blur-free imaging under dark decreased light；Help to obtain the small depth of field, realize the background blurring shooting effect of large aperture, these advantages make it
More favored in cell-phone camera field.
The large aperture imaging lens group reason excessive due to aperture, aperture of lens, microscope group overall length often become accordingly
Greatly, the conventional system using spherical lens is difficult to guarantee lesser aperture of lens and microscope group while realizing that large aperture is imaged
Overall length.Thus, the imaging definition of large aperture imaging lens group how is improved while taking into account system compact, is current sheet
One of field issues that need special attention.
Utility model content
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The optical imaging lens group of at least one above-mentioned disadvantage.
On the one hand, this application provides such a optical imaging lens group, the optical imaging lens group along optical axis by
Object side to image side sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th
Lens and the 8th lens.First lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second thoroughly
Mirror can have negative power, and image side surface can be concave surface；The third lens can have positive light coke, and object side can be convex surface；The
Four lens have positive light coke or negative power；5th lens have positive light coke or negative power；6th lens have positive light
Focal power or negative power, object side can be convex surface, and image side surface can be concave surface；7th lens can have positive light coke；8th thoroughly
Mirror has positive light coke or negative power.Wherein, total effective focal length f of optical imaging lens group and entering for optical imaging lens group
Pupil diameter EPD can meet f/EPD < 1.4.
In one embodiment, the effective focal length f1 of the first lens and effective picture on the imaging surface of optical imaging lens group
The half ImgH of plain region diagonal line length can meet 1 < f1/ImgH < 2.
In one embodiment, the curvature of the image side surface of the radius of curvature R 1 and the first lens of the object side of the first lens
Radius R2 can meet 0.1 < R1/R2 < 0.5.
In one embodiment, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens can meet -1.5
< f2/f3 < -0.5.
In one embodiment, the object side of the first lens to optical imaging lens group imaging surface on optical axis away from
Radius of curvature R 5 from TTL and the object side of the third lens can meet 1 < TTL/R5 < 3.
In one embodiment, the song of the image side surface of the radius of curvature R 11 and the 6th lens of the object side of the 6th lens
Rate radius R12 can meet 1 < R11/R12 < 1.5.
In one embodiment, the first lens on optical axis center thickness CT1, the 4th lens are in the center on optical axis
Thickness CT4 and the 5th lens can meet 1 < CT1/ (CT4+CT5) < 2 in the center thickness CT5 on optical axis.
In one embodiment, the 7th lens on optical axis center thickness CT7 and the 8th lens on optical axis
Heart thickness CT8 can meet 1 < CT7/CT8 < 2.
In one embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the 4th lens,
The combined focal length f456 of 5th lens and the 6th lens can meet -4 < f456/f123 < -1.5.
In one embodiment, the first lens to the 8th lens respectively at the center thickness on optical axis summation ∑ CT with
First lens summation ∑ AT of spacing distance of two lens of arbitrary neighborhood on optical axis into the 8th lens can meet 2 < ∑ CT/
∑ AT < 2.5.
On the other hand, present invention also provides such a optical imaging lens groups, and the optical imaging lens group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；The
Two lens can have negative power, and image side surface can be concave surface；The third lens can have positive light coke, and object side can be convex
Face；4th lens have positive light coke or negative power；5th lens have positive light coke or negative power；6th lens have
Positive light coke or negative power, object side can be convex surface, and image side surface can be concave surface；7th lens can have positive light coke；The
Eight lens have positive light coke or negative power.Wherein, the combined focal length f123 of the first lens, the second lens and the third lens with
The combined focal length f456 of 4th lens, the 5th lens and the 6th lens can meet -4 < f456/f123 < -1.5.
Another aspect, present invention also provides such a optical imaging lens groups, and the optical imaging lens group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；The
Two lens can have negative power, and image side surface can be concave surface；The third lens can have positive light coke, and object side can be convex
Face；4th lens have positive light coke or negative power；5th lens have positive light coke or negative power；6th lens have
Positive light coke or negative power, object side can be convex surface, and image side surface can be concave surface；7th lens can have positive light coke；The
Eight lens have positive light coke or negative power.Wherein, the first lens to the 8th lens are respectively at the center thickness on optical axis
The summation ∑ AT of spacing distance of two lens of arbitrary neighborhood on optical axis into the 8th lens can expire summation ∑ CT with the first lens
2 < ∑ CT/ ∑ AT < 2.5 of foot.
The application use eight lens, by each power of lens of reasonable distribution, face type, each lens center thickness
And spacing etc. on the axis between each lens, so that above-mentioned optical imaging lens group has large aperture, miniaturization and height at image quality
At least one beneficial effect such as amount.
Detailed description of the invention
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent
Point will be apparent.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 1, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 2, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 3, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 4, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 5, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 6, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 7, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 8, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 17 shows the structural schematic diagrams according to the optical imaging lens group of the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 9, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 19 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 10；
It is bent that Figure 20 A to Figure 20 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 10, astigmatism
Line, distortion curve and ratio chromatism, curve；
Figure 21 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 11；
It is bent that Figure 22 A to Figure 22 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 11, astigmatism
Line, distortion curve and ratio chromatism, curve；
Figure 23 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 12；
It is bent that Figure 24 A to Figure 24 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 12, astigmatism
Line, distortion curve and ratio chromatism, curve.
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers
Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy
Sign distinguishes, without indicating any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position
When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is concave surface near axis area is less than.Each lens are known as this thoroughly near the surface of subject
The object side of mirror, each lens are known as the image side surface of the lens near the surface of imaging surface.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
It indicates there is stated feature, element and/or component when using in bright book, but does not preclude the presence or addition of one or more
Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of column feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this
When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative "
It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
Optical imaging lens group according to the application illustrative embodiments may include such as eight saturating with focal power
Mirror, that is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are thoroughly
Mirror.This eight lens are along optical axis by object side to image side sequential.First lens, two lens of arbitrary neighborhood into the 8th lens
Between can have the air gap.
In the exemplary embodiment, the first lens can have positive light coke, and object side can be convex surface, and image side surface can be
Concave surface；Second lens can have negative power, and image side surface can be concave surface；The third lens can have positive light coke, and object side can
For convex surface；4th lens have positive light coke or negative power；5th lens have positive light coke or negative power；6th lens
With positive light coke or negative power, object side can be convex surface, and image side surface can be concave surface；7th lens can have positive light focus
Degree；8th lens have positive light coke or negative power.
In the exemplary embodiment, the image side surface of the 5th lens can be concave surface.
In the exemplary embodiment, the object side of the 7th lens can be convex surface.
In the exemplary embodiment, the image side surface of the 8th lens can be concave surface.
In the exemplary embodiment, the optical imaging lens group of the application can meet conditional f/EPD < 1.4, wherein
F is total effective focal length of optical imaging lens group, and EPD is the Entry pupil diameters of optical imaging lens group.More specifically, f and EPD into
One step can meet 1.1 < f/EPD < 1.4, such as 1.29≤f/EPD≤1.36.Meet conditional f/EPD < 1.4, facilitates reality
Existing large aperture imaging, in order to the blur-free imaging in dim light.
In the exemplary embodiment, the optical imaging lens group of the application can meet 1 < f1/ImgH < 2 of conditional,
In, f1 is the effective focal length of the first lens, and ImgH is effective pixel area diagonal line length on the imaging surface of optical imaging lens group
Half.More specifically, f1 and ImgH can further meet 1.3 < f1/ImgH < 1.9, such as 1.45≤f1/ImgH≤
1.86.Meet 1 < f1/ImgH < 2 of conditional, it is too small to can effectively avoid image height, is conducive to matching chip, while being conducive to improve
The color difference of system and distortion.
In the exemplary embodiment, the optical imaging lens group of the application can meet -1.5 < f2/f3 < of conditional -
0.5, wherein f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens.More specifically, f2 and f3 are further
- 1.33≤f2/f3≤- 0.88 can be met.The focal power of reasonable distribution the second lens and the third lens is conducive to improve color difference,
Overall length of system can be also effectively reduced, and is conducive to expand bore.
In the exemplary embodiment, the optical imaging lens group of the application can meet 0.1 < R1/R2 < 0.5 of conditional,
Wherein, R1 is the radius of curvature of the object side of the first lens, and R2 is the radius of curvature of the image side surface of the first lens.More specifically,
R1 and R2 can further meet 0.17≤R1/R2≤0.43.Meet 0.1 < R1/R2 < 0.5 of conditional, can effectively avoid first
Lens are excessively bent, be conducive to control the first lens edge thickness and reduce difficulty of processing, while be conducive to improve optics at
As the color difference of lens group.
In the exemplary embodiment, the optical imaging lens group of the application can meet 1 < TTL/R5 < 3 of conditional,
In, TTL is the object side of the first lens to distance of the imaging surface on optical axis of optical imaging lens group, and R5 is the third lens
The radius of curvature of object side.More specifically, TTL and R5 can further meet 1.1 < TTL/R5 < 2.7, such as 1.25≤TTL/
R5≤2.54.Meet 1 < TTL/R5 < 3 of conditional, can effectively avoid the third lens and be excessively bent, and helps to reduce difficult processing
Degree, while facilitating reasonable control system overall length.
In the exemplary embodiment, the optical imaging lens group of the application can meet -4 < f456/f123 < of conditional -
1.5, wherein f123 is the combined focal length of the first lens, the second lens and the third lens, and f456 is the 4th lens, the 5th lens
With the combined focal length of the 6th lens.More specifically, f456 and f123 can further meet -3.70≤f456/f123≤- 1.95.
Meet -4 < f456/f123 < -1.5 of conditional, the first lens, the second lens and the third lens undertake main focal power, with
Four lens, the 5th lens and the 6th lens cooperate to improve the color difference of lens group, improve image sharpness.
In the exemplary embodiment, the optical imaging lens group of the application can meet 1 < R11/R12 < 1.5 of conditional,
Wherein, R11 is the radius of curvature of the object side of the 6th lens, and R12 is the radius of curvature of the image side surface of the 6th lens.More specifically
Ground, R11 and R12 can further meet 1.03≤R11/R12≤1.37.Meet 1 < R11/R12 < 1.5 of conditional, can effectively keep away
Exempt from the 6th lens to be excessively bent, and helps to reduce difficulty of processing, while the color difference and the curvature of field of system also can be effectively controlled.
In the exemplary embodiment, the optical imaging lens group of the application can meet 2 < ∑ CT/ ∑ AT < of conditional
2.5, wherein ∑ CT is summation of the first lens to the 8th lens respectively at the center thickness on optical axis, and ∑ AT is the first lens
The summation of spacing distance of two lens of arbitrary neighborhood on optical axis into the 8th lens.More specifically, ∑ CT and ∑ AT are further
2.01≤∑ CT/ ∑ AT≤2.34 can be met.Meet 2 < ∑ CT/ ∑ AT < 2.5 of conditional, is conducive to control each adjacent
The overall length of airspace and system between mirror reduces processing and assembling difficulty, at the same also help make it is each adjacent saturating
With enough clearance spaces so that each lens surface carrys out improving optical with higher variation freedom degree with this between mirror
The ability of imaging lens group correction astigmatism and the curvature of field.
In the exemplary embodiment, the optical imaging lens group of the application can meet 1 < CT1/ (CT4+CT5) of conditional
< 2, wherein CT1 is the first lens in the center thickness on optical axis, and CT4 is the 4th lens in the center thickness on optical axis, CT5
It is the 5th lens in the center thickness on optical axis.More specifically, CT1, CT4 and CT5 can further meet 1.3 < CT1/ (CT4+
CT5) 1.7 <, such as 1.42≤CT1/ (CT4+CT5)≤1.58.Meet conditional 1 < CT1/ (CT4+CT5) < 2, it can be effective
It avoids the center thickness of the 4th lens and the 5th lens excessively thin, and processing and assembling difficulty can be reduced.
In the exemplary embodiment, the optical imaging lens group of the application can meet 1 < CT7/CT8 < 2 of conditional,
In, CT7 is the 7th lens in the center thickness on optical axis, and CT8 is the 8th lens in the center thickness on optical axis.More specifically,
CT7 and CT8 can further meet 1.10≤CT7/CT8≤1.60.Meet 1 < CT7/CT8 < 2 of conditional, can effectively avoid
The center thickness difference of seven lens and the 8th lens is excessive, and can reduce assembling difficulty, guarantees lens face type；It simultaneously can also be effective
Correct the curvature of field.
In the exemplary embodiment, above-mentioned optical imaging lens group may also include diaphragm, with improving optical imaging len
The image quality of group.Optionally, diaphragm may be provided between object side and the first lens.
Optionally, above-mentioned optical imaging lens group may also include optical filter for correcting color error ratio and/or for protecting
Shield is located at the protection glass of the photosensitive element on imaging surface.
Multi-disc eyeglass can be used according to the optical imaging lens group of the above embodiment of the application, such as described above
Eight.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing
Deng, can effectively reduce optical imaging lens group volume, reduce optical imaging lens group susceptibility and improve optical imagery
The machinability of lens group, so that optical imaging lens group, which is more advantageous to, produces and processes and be applicable to portable electronic production
Product.Optical imaging lens group through the above configuration can also have the beneficial effects such as large aperture, miniaturization and high imaging quality.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror, that is, first thoroughly
Each of mirror, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are saturating
At least one of the object side of mirror and image side surface are aspherical.The characteristics of non-spherical lens, is: all from lens centre to lens
Side, curvature are consecutive variations.Have the spherical lens of constant curvature different from from lens centre to lens perimeter, it is aspherical
Mirror has more preferably radius of curvature characteristic, has the advantages that improve and distorts aberration and improvement astigmatic image error.Using non-spherical lens
Afterwards, the aberration occurred when imaging can be eliminated, as much as possible so as to improve image quality.Optionally, the first lens,
Two lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and each lens in the 8th lens object
Side and image side surface can be aspherical.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting optical imaging lens group can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking eight lens as an example in embodiments, which is not limited to include eight
A lens.If desired, the optical imaging lens group may also include the lens of other quantity.
The specific implementation for being applicable to the optical imaging lens group of above embodiment is further described with reference to the accompanying drawings
Example.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D description according to the optical imaging lens group of the embodiment of the present application 1.Fig. 1 shows basis
The structural schematic diagram of the optical imaging lens group of the embodiment of the present application 1.
As shown in Figure 1, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 1 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 1
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens of the first lens E1 into the 8th lens E8 and image side surface are
It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2 give can be used for it is each aspherical in embodiment 1
The high-order coefficient A of mirror surface S1-S164、A6、A8、A10、A12、A14、A16、A18And A20。
Table 2
Table 3 provides the half of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 1
ImgH, optics total length TTL (that is, distance from the object side S1 of the first lens E1 to imaging surface S19 on optical axis), maximum half
Field angle HFOV, total effective focal length f of optical imaging lens group and the effective focal length f1 to f8 of each lens.
| ImgH(mm) | 3.39 | f3(mm) | 6.99 |
| TTL(mm) | 5.57 | f4(mm) | -217.72 |
| HFOV(°) | 37.0 | f5(mm) | -33.47 |
| f(mm) | 4.33 | f6(mm) | -23.15 |
| f1(mm) | 5.95 | f7(mm) | 4.31 |
| f2(mm) | -8.51 | f8(mm) | -4.76 |
Table 3
Optical imaging lens group in embodiment 1 meets:
F/EPD=1.29, wherein f is total effective focal length of optical imaging lens group, and EPD is optical imaging lens group
Entry pupil diameters；
F1/ImgH=1.76, wherein f1 be the first lens E1 effective focal length, ImgH be optical imaging lens group at
The half of effective pixel area diagonal line length on image planes S19；
F2/f3=-1.22, wherein f2 is the effective focal length of the second lens E2, and f3 is the effective focal length of the third lens E3；
R1/R2=0.39, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R2 is the first lens E1's
The radius of curvature of image side surface S2；
TTL/R5=2.25, wherein TTL is distance of the object side S1 of the first lens E1 to imaging surface S19 on optical axis,
R5 is the radius of curvature of the object side S5 of the third lens E3；
F456/f123=-2.42, wherein f123 is the group focus of the first lens E1, the second lens E2 and the third lens E3
Away from f456 is the combined focal length of the 4th lens E4, the 5th lens E5 and the 6th lens E6；
R11/R12=1.23, wherein R11 is the radius of curvature of the object side S11 of the 6th lens E6, and R12 is the 6th lens
The radius of curvature of the image side surface S12 of E6；
∑ CT/ ∑ AT=2.19, wherein ∑ CT is the first lens E1 to the 8th lens E8 thick respectively at the center on optical axis
The summation of degree, ∑ AT be the first lens E1 into the 8th lens E8 spacing distance of two lens of arbitrary neighborhood on optical axis it is total
With；
CT1/ (CT4+CT5)=1.55, wherein CT1 is the first lens E1 in the center thickness on optical axis, and CT4 is the 4th
For lens E4 in the center thickness on optical axis, CT5 is the 5th lens E5 in the center thickness on optical axis；
CT7/CT8=1.54, wherein CT7 is the 7th lens E7 in the center thickness on optical axis, and CT8 is the 8th lens E8
In the center thickness on optical axis.
Fig. 2A shows chromatic curve on the axis of the optical imaging lens group of embodiment 1, indicates the light of different wave length
Deviate via the converging focal point after lens group.Fig. 2 B shows the astigmatism curve of the optical imaging lens group of embodiment 1, indicates
Meridianal image surface bending and sagittal image surface bending.Fig. 2 C shows the distortion curve of the optical imaging lens group of embodiment 1, indicates
Distortion sizes values corresponding to different image heights.Fig. 2 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 1,
Indicate light via the deviation of the different image heights after lens group on imaging surface.A to Fig. 2 D is it is found that 1 institute of embodiment according to fig. 2
The optical imaging lens group provided can be realized good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the optical imaging lens group of the embodiment of the present application 2.The present embodiment and with
In lower embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application
The structural schematic diagram of 2 optical imaging lens group.
As shown in figure 3, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 4 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 2
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 6.8034E-03 | 1.0075E-03 | 5.7613E-03 | -1.5765E-02 | 1.7623E-02 | -1.0867E-02 | 3.8034E-03 | -7.1392E-04 | 5.5321E-05 |
| S2 | 2.5749E-02 | -1.8294E-02 | -1.7042E-02 | 2.8250E-02 | -2.0808E-02 | 9.9251E-03 | -3.0881E-03 | 5.5631E-04 | -4.3482E-05 |
| S3 | 1.4538E-01 | -3.2664E-01 | 4.2695E-01 | -4.2240E-01 | 3.0218E-01 | -1.4510E-01 | 4.3926E-02 | -7.5656E-03 | 5.6601E-04 |
| S4 | -4.2966E-02 | 2.1296E-01 | -5.3235E-01 | 7.8203E-01 | -7.6565E-01 | 5.0752E-01 | -2.1825E-01 | 5.4738E-02 | -6.0227E-03 |
| S5 | -6.0927E-02 | 2.0463E-01 | -4.5252E-01 | 6.8982E-01 | -7.4020E-01 | 5.3665E-01 | -2.5187E-01 | 6.9081E-02 | -8.2975E-03 |
| S6 | -2.3218E-02 | 1.6193E-02 | -3.1755E-02 | 6.2035E-02 | -1.0277E-01 | 1.0666E-01 | -6.8798E-02 | 2.4868E-02 | -3.7394E-03 |
| S7 | -3.0578E-02 | 4.5676E-03 | -1.3918E-01 | 3.4485E-01 | -4.8543E-01 | 4.1385E-01 | -2.1303E-01 | 6.1287E-02 | -7.5732E-03 |
| S8 | 1.4736E-02 | -1.6165E-01 | 3.5618E-01 | -5.6702E-01 | 5.8523E-01 | -3.9180E-01 | 1.6338E-01 | -3.8332E-02 | 3.8518E-03 |
| S9 | 1.8806E-02 | -1.9567E-01 | 4.0224E-01 | -4.8676E-01 | 3.7384E-01 | -1.8952E-01 | 6.0843E-02 | -1.1189E-02 | 9.0504E-04 |
| S10 | -2.6309E-03 | -2.2775E-01 | 3.7467E-01 | -3.4035E-01 | 1.8609E-01 | -5.9059E-02 | 8.3280E-03 | 3.6331E-04 | -1.7160E-04 |
| S11 | 9.6429E-02 | -2.1061E-01 | 1.7424E-01 | -8.0474E-02 | 5.4376E-03 | 1.2631E-02 | -6.3678E-03 | 1.3343E-03 | -1.0782E-04 |
| S12 | 9.4369E-02 | -2.1635E-01 | 2.3417E-01 | -1.6860E-01 | 7.9075E-02 | -2.3694E-02 | 4.3515E-03 | -4.4465E-04 | 1.9320E-05 |
| S13 | -3.4461E-02 | -7.4697E-02 | 1.1925E-01 | -9.6358E-02 | 4.4875E-02 | -1.2498E-02 | 2.0516E-03 | -1.8260E-04 | 6.7824E-06 |
| S14 | 1.4447E-02 | -2.0438E-02 | 3.7394E-02 | -3.2467E-02 | 1.4757E-02 | -3.7873E-03 | 5.5015E-04 | -4.2154E-05 | 1.3244E-06 |
| S15 | -3.6662E-01 | 2.5850E-01 | -1.1408E-01 | 3.8932E-02 | -9.5669E-03 | 1.5215E-03 | -1.4532E-04 | 7.5350E-06 | -1.6265E-07 |
| S16 | -1.9688E-01 | 1.3586E-01 | -6.7843E-02 | 2.4149E-02 | -6.0801E-03 | 1.0442E-03 | -1.1436E-04 | 7.0993E-06 | -1.8831E-07 |
Table 5
Table 6 provides the half of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 2
ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and having for each lens
Imitate focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 6.25 |
| TTL(mm) | 5.61 | f4(mm) | 800.00 |
| HFOV(°) | 36.5 | f5(mm) | -26.31 |
| f(mm) | 4.36 | f6(mm) | -43.37 |
| f1(mm) | 6.22 | f7(mm) | 4.91 |
| f2(mm) | -8.07 | f8(mm) | -4.72 |
Table 6
Fig. 4 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 2, indicates the light of different wave length
Deviate via the converging focal point after lens group.Fig. 4 B shows the astigmatism curve of the optical imaging lens group of embodiment 2, indicates
Meridianal image surface bending and sagittal image surface bending.Fig. 4 C shows the distortion curve of the optical imaging lens group of embodiment 2, indicates
Distortion sizes values corresponding to different image heights.Fig. 4 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 2,
Indicate light via the deviation of the different image heights after lens group on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that 2 institute of embodiment
The optical imaging lens group provided can be realized good image quality.
Embodiment 3
The optical imaging lens group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 3.
As shown in figure 5, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 7 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 3
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 9.9323E-03 | -1.0489E-02 | 3.0168E-02 | -4.6768E-02 | 4.2102E-02 | -2.2927E-02 | 7.3968E-03 | -1.3056E-03 | 9.6580E-05 |
| S2 | 1.9779E-02 | -1.5703E-02 | -2.6570E-04 | -2.5731E-03 | 6.3763E-03 | -4.4621E-03 | 1.5292E-03 | -2.6912E-04 | 1.9391E-05 |
| S3 | 1.0212E-01 | -1.9303E-01 | 1.8604E-01 | -1.2238E-01 | 4.7605E-02 | -4.0438E-03 | -4.3741E-03 | 1.6663E-03 | -1.8565E-04 |
| S4 | -4.8177E-02 | 2.2067E-01 | -5.1208E-01 | 7.1419E-01 | -6.5959E-01 | 4.0393E-01 | -1.5724E-01 | 3.5387E-02 | -3.5127E-03 |
| S5 | -5.4668E-02 | 1.7904E-01 | -3.8265E-01 | 5.4991E-01 | -5.3887E-01 | 3.4625E-01 | -1.4268E-01 | 3.5088E-02 | -3.9261E-03 |
| S6 | -1.9789E-02 | 8.5745E-04 | 2.4625E-02 | -7.9485E-02 | 1.1838E-01 | -1.0322E-01 | 4.9454E-02 | -1.1453E-02 | 9.2398E-04 |
| S7 | -4.0781E-02 | 4.0802E-02 | -1.6620E-01 | 2.7586E-01 | -2.9064E-01 | 1.9558E-01 | -8.3233E-02 | 2.0939E-02 | -2.4081E-03 |
| S8 | -1.5162E-02 | -6.3385E-02 | 1.7029E-01 | -3.2824E-01 | 3.8110E-01 | -2.7757E-01 | 1.2237E-01 | -2.9606E-02 | 3.0075E-03 |
| S9 | 2.7670E-02 | -2.8599E-01 | 6.3184E-01 | -8.1417E-01 | 6.7000E-01 | -3.5650E-01 | 1.1606E-01 | -2.0543E-02 | 1.4698E-03 |
| S10 | 1.0486E-01 | -6.0793E-01 | 1.1035E+00 | -1.2365E+00 | 9.1416E-01 | -4.4362E-01 | 1.3458E-01 | -2.2924E-02 | 1.6634E-03 |
| S11 | 1.6202E-01 | -4.2443E-01 | 5.4632E-01 | -4.8347E-01 | 2.9309E-01 | -1.2032E-01 | 3.1183E-02 | -4.4875E-03 | 2.6948E-04 |
| S12 | 7.3082E-02 | -1.4899E-01 | 1.2054E-01 | -5.6745E-02 | 1.4852E-02 | -1.9187E-03 | 5.1662E-05 | 1.2863E-05 | -9.6926E-07 |
| S13 | -8.6218E-02 | 4.7561E-02 | -2.4310E-02 | 9.7020E-04 | 3.8588E-03 | -1.5617E-03 | 2.6641E-04 | -2.0796E-05 | 5.7588E-07 |
| S14 | -2.3301E-02 | 5.2621E-02 | -1.7117E-02 | -1.2179E-02 | 1.0791E-02 | -3.4463E-03 | 5.5658E-04 | -4.5388E-05 | 1.4870E-06 |
| S15 | -3.8078E-01 | 2.8814E-01 | -1.3252E-01 | 4.4323E-02 | -1.0390E-02 | 1.5852E-03 | -1.4730E-04 | 7.5350E-06 | -1.6265E-07 |
| S16 | -2.0096E-01 | 1.4221E-01 | -7.0864E-02 | 2.4189E-02 | -5.7367E-03 | 9.3641E-04 | -9.9357E-05 | 6.0710E-06 | -1.5996E-07 |
Table 8
Table 9 provides the half of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 3
ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and having for each lens
Imitate focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 6.65 |
| TTL(mm) | 5.61 | f4(mm) | -130.29 |
| HFOV(°) | 36.7 | f5(mm) | 800.00 |
| f(mm) | 4.36 | f6(mm) | -13.91 |
| f1(mm) | 6.11 | f7(mm) | 4.50 |
| f2(mm) | -8.14 | f8(mm) | -5.03 |
Table 9
Fig. 6 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 3, indicates the light of different wave length
Deviate via the converging focal point after lens group.Fig. 6 B shows the astigmatism curve of the optical imaging lens group of embodiment 3, indicates
Meridianal image surface bending and sagittal image surface bending.Fig. 6 C shows the distortion curve of the optical imaging lens group of embodiment 3, indicates
Distortion sizes values corresponding to different image heights.Fig. 6 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 3,
Indicate light via the deviation of the different image heights after lens group on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that 3 institute of embodiment
The optical imaging lens group provided can be realized good image quality.
Embodiment 4
The optical imaging lens group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 4
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.1309E-02 | -9.3711E-03 | 2.7693E-02 | -4.4818E-02 | 4.2442E-02 | -2.4461E-02 | 8.3742E-03 | -1.5715E-03 | 1.2364E-04 |
| S2 | 2.9224E-02 | -3.6090E-02 | 3.2491E-02 | -4.4222E-02 | 4.2173E-02 | -2.3910E-02 | 7.9096E-03 | -1.4225E-03 | 1.0746E-04 |
| S3 | 1.1213E-01 | -2.4576E-01 | 2.9821E-01 | -2.6834E-01 | 1.6899E-01 | -6.6836E-02 | 1.4868E-02 | -1.4805E-03 | 2.1180E-05 |
| S4 | -5.2626E-02 | 2.3699E-01 | -5.8988E-01 | 9.0753E-01 | -9.3950E-01 | 6.5079E-01 | -2.8636E-01 | 7.1947E-02 | -7.8096E-03 |
| S5 | -5.6988E-02 | 1.9988E-01 | -4.6127E-01 | 7.3126E-01 | -8.0400E-01 | 5.8425E-01 | -2.6928E-01 | 7.1534E-02 | -8.2789E-03 |
| S6 | -1.8541E-02 | 6.7138E-03 | -3.7444E-04 | -1.4795E-02 | 1.6099E-02 | -9.8358E-03 | -7.7799E-06 | 2.7023E-03 | -7.6103E-04 |
| S7 | -3.5806E-02 | -4.4276E-03 | -3.3534E-02 | 2.0078E-02 | 2.9894E-02 | -5.7360E-02 | 3.6849E-02 | -1.0192E-02 | 9.6813E-04 |
| S8 | -7.4658E-03 | -1.0043E-01 | 2.5946E-01 | -4.6492E-01 | 5.1903E-01 | -3.6783E-01 | 1.5915E-01 | -3.8068E-02 | 3.8453E-03 |
| S9 | -7.2836E-03 | -1.9174E-01 | 5.0970E-01 | -7.0092E-01 | 5.8411E-01 | -3.0536E-01 | 9.5487E-02 | -1.5835E-02 | 1.0074E-03 |
| S10 | -3.1758E-03 | -3.4789E-01 | 7.5181E-01 | -9.0236E-01 | 6.8375E-01 | -3.3189E-01 | 9.9222E-02 | -1.6516E-02 | 1.1678E-03 |
| S11 | 1.4089E-01 | -3.9535E-01 | 5.3446E-01 | -4.7912E-01 | 2.7971E-01 | -1.0723E-01 | 2.5639E-02 | -3.3676E-03 | 1.8047E-04 |
| S12 | 1.1763E-01 | -2.8608E-01 | 3.3937E-01 | -2.5335E-01 | 1.1876E-01 | -3.4966E-02 | 6.2793E-03 | -6.2798E-04 | 2.6777E-05 |
| S13 | -7.8651E-03 | -1.0651E-01 | 1.4898E-01 | -1.0875E-01 | 4.5730E-02 | -1.1489E-02 | 1.6950E-03 | -1.3448E-04 | 4.3930E-06 |
| S14 | 1.3196E-02 | -2.4600E-02 | 5.6542E-02 | -4.8009E-02 | 2.0785E-02 | -5.0984E-03 | 7.1404E-04 | -5.3179E-05 | 1.6345E-06 |
| S15 | -3.7500E-01 | 2.6674E-01 | -1.1906E-01 | 4.0593E-02 | -9.8522E-03 | 1.5454E-03 | -1.4610E-04 | 7.5350E-06 | -1.6265E-07 |
| S16 | -1.9746E-01 | 1.4507E-01 | -7.7014E-02 | 2.8857E-02 | -7.5130E-03 | 1.3066E-03 | -1.4249E-04 | 8.7125E-06 | -2.2627E-07 |
Table 11
Table 12 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 4
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 6.29 |
| TTL(mm) | 5.58 | f4(mm) | -74.01 |
| HFOV(°) | 37.2 | f5(mm) | -22.68 |
| f(mm) | 4.32 | f6(mm) | 194.01 |
| f1(mm) | 6.32 | f7(mm) | 4.62 |
| f2(mm) | -8.39 | f8(mm) | -4.39 |
Table 12
Fig. 8 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 4, indicates the light of different wave length
Deviate via the converging focal point after lens group.Fig. 8 B shows the astigmatism curve of the optical imaging lens group of embodiment 4, indicates
Meridianal image surface bending and sagittal image surface bending.Fig. 8 C shows the distortion curve of the optical imaging lens group of embodiment 4, indicates
Distortion sizes values corresponding to different image heights.Fig. 8 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 4,
Indicate light via the deviation of the different image heights after lens group on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that 4 institute of embodiment
The optical imaging lens group provided can be realized good image quality.
Embodiment 5
The optical imaging lens group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 5.
As shown in figure 9, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has positive light coke, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 5
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.1341E-02 | -1.8769E-02 | 4.2712E-02 | -5.6384E-02 | 4.4795E-02 | -2.2080E-02 | 6.5645E-03 | -1.0870E-03 | 7.6841E-05 |
| S2 | 9.4355E-03 | 1.7224E-02 | -7.2100E-02 | 8.9693E-02 | -6.6751E-02 | 3.1891E-02 | -9.5570E-03 | 1.6330E-03 | -1.2153E-04 |
| S3 | 7.2169E-02 | -1.2596E-01 | 1.2278E-01 | -1.1330E-01 | 8.7271E-02 | -4.5869E-02 | 1.5267E-02 | -2.9245E-03 | 2.4627E-04 |
| S4 | -3.1018E-02 | 1.3735E-01 | -2.9383E-01 | 3.7185E-01 | -3.1434E-01 | 1.7837E-01 | -6.5817E-02 | 1.4736E-02 | -1.5423E-03 |
| S5 | -3.0627E-02 | 3.8879E-02 | 2.6959E-02 | -1.8127E-01 | 2.9429E-01 | -2.5909E-01 | 1.2725E-01 | -3.1959E-02 | 3.1739E-03 |
| S6 | -1.9582E-02 | -9.3712E-03 | 4.8353E-02 | -1.2638E-01 | 1.8489E-01 | -1.6576E-01 | 8.5306E-02 | -2.2727E-02 | 2.4217E-03 |
| S7 | -2.5889E-02 | 4.6141E-03 | -1.0896E-01 | 2.3723E-01 | -3.0942E-01 | 2.5220E-01 | -1.2754E-01 | 3.6695E-02 | -4.5686E-03 |
| S8 | 2.9682E-04 | -9.3471E-02 | 2.0035E-01 | -3.3853E-01 | 3.6657E-01 | -2.5448E-01 | 1.0775E-01 | -2.5120E-02 | 2.4694E-03 |
| S9 | 1.3577E-02 | -2.3724E-01 | 5.2717E-01 | -6.5024E-01 | 4.8670E-01 | -2.2056E-01 | 5.4388E-02 | -5.2294E-03 | -1.2202E-04 |
| S10 | 6.4355E-02 | -5.5528E-01 | 1.0697E+00 | -1.2163E+00 | 8.8945E-01 | -4.1987E-01 | 1.2279E-01 | -2.0098E-02 | 1.4013E-03 |
| S11 | 1.5500E-01 | -4.5318E-01 | 6.1667E-01 | -5.4848E-01 | 3.2011E-01 | -1.2241E-01 | 2.8956E-02 | -3.7393E-03 | 1.9641E-04 |
| S12 | 8.2113E-02 | -1.5411E-01 | 1.3775E-01 | -8.0091E-02 | 2.8903E-02 | -6.4583E-03 | 8.8412E-04 | -7.0096E-05 | 2.5753E-06 |
| S13 | -1.6545E-01 | 2.1710E-01 | -1.9741E-01 | 9.9873E-02 | -3.0664E-02 | 6.1125E-03 | -8.1267E-04 | 6.7772E-05 | -2.6727E-06 |
| S14 | -1.8675E-01 | 3.3651E-01 | -2.7614E-01 | 1.2789E-01 | -3.6375E-02 | 6.5408E-03 | -7.3294E-04 | 4.7092E-05 | -1.3294E-06 |
| S15 | -4.1869E-01 | 3.7100E-01 | -2.0633E-01 | 7.8233E-02 | -1.9638E-02 | 3.1585E-03 | -3.1206E-04 | 1.7270E-05 | -4.1101E-07 |
| S16 | -2.2881E-01 | 1.7325E-01 | -9.2388E-02 | 3.3034E-02 | -7.9216E-03 | 1.2567E-03 | -1.2582E-04 | 7.1580E-06 | -1.7548E-07 |
Table 14
Table 15 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 5
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 7.05 |
| TTL(mm) | 5.63 | f4(mm) | -386.34 |
| HFOV(°) | 36.2 | f5(mm) | -28.91 |
| f(mm) | 4.50 | f6(mm) | -35.62 |
| f1(mm) | 5.81 | f7(mm) | 21.62 |
| f2(mm) | -7.98 | f8(mm) | 999.64 |
Table 15
Figure 10 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 5, indicates the light of different wave length
Deviate via the converging focal point after lens group.Figure 10 B shows the astigmatism curve of the optical imaging lens group of embodiment 5, table
Show meridianal image surface bending and sagittal image surface bending.Figure 10 C shows the distortion curve of the optical imaging lens group of embodiment 5,
Indicate distortion sizes values corresponding to different image heights.The ratio chromatism, that Figure 10 D shows the optical imaging lens group of embodiment 5 is bent
Line indicates light via the deviation of the different image heights after lens group on imaging surface.According to Figure 10 A to Figure 10 D it is found that reality
Applying optical imaging lens group given by example 5 can be realized good image quality.
Embodiment 6
The optical imaging lens group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 6.
As shown in figure 11, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 6
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 17
Table 18 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 6
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 8.11 |
| TTL(mm) | 5.59 | f4(mm) | -24.07 |
| HFOV(°) | 37.0 | f5(mm) | -47.82 |
| f(mm) | 4.32 | f6(mm) | -24.81 |
| f1(mm) | 5.36 | f7(mm) | 4.44 |
| f2(mm) | -10.74 | f8(mm) | -4.77 |
Table 18
Figure 12 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 6, indicates the light of different wave length
Deviate via the converging focal point after lens group.Figure 12 B shows the astigmatism curve of the optical imaging lens group of embodiment 6, table
Show meridianal image surface bending and sagittal image surface bending.Figure 12 C shows the distortion curve of the optical imaging lens group of embodiment 6,
Indicate distortion sizes values corresponding to different image heights.The ratio chromatism, that Figure 12 D shows the optical imaging lens group of embodiment 6 is bent
Line indicates light via the deviation of the different image heights after lens group on imaging surface.According to Figure 12 A to Figure 12 D it is found that reality
Applying optical imaging lens group given by example 6 can be realized good image quality.
Embodiment 7
The optical imaging lens group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 7.
As shown in figure 13, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 7
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 7.9111E-03 | -2.6890E-03 | 1.1137E-02 | -1.9523E-02 | 1.8149E-02 | -9.9181E-03 | 3.1627E-03 | -5.5003E-04 | 3.9753E-05 |
| S2 | 2.4284E-02 | -1.4666E-02 | -1.2882E-02 | 9.2180E-03 | 3.1198E-03 | -5.5673E-03 | 2.5102E-03 | -5.1553E-04 | 4.1255E-05 |
| S3 | 1.1056E-01 | -2.0540E-01 | 2.1418E-01 | -1.8621E-01 | 1.2967E-01 | -6.3225E-02 | 1.9817E-02 | -3.5889E-03 | 2.8639E-04 |
| S4 | -4.6675E-02 | 1.9886E-01 | -4.2480E-01 | 5.3249E-01 | -4.3975E-01 | 2.4675E-01 | -9.2023E-02 | 2.0855E-02 | -2.1611E-03 |
| S5 | -5.4241E-02 | 1.6034E-01 | -3.0951E-01 | 4.1765E-01 | -4.0496E-01 | 2.7010E-01 | -1.2073E-01 | 3.2813E-02 | -3.9991E-03 |
| S6 | -1.8077E-02 | 8.1369E-03 | -1.4192E-02 | 2.4597E-02 | -4.0954E-02 | 3.9631E-02 | -2.5521E-02 | 9.7942E-03 | -1.5727E-03 |
| S7 | -1.7789E-02 | -7.0820E-02 | 1.3879E-01 | -2.4112E-01 | 2.6425E-01 | -1.7420E-01 | 6.3265E-02 | -1.0321E-02 | 3.2665E-04 |
| S8 | 7.7441E-02 | -4.2194E-01 | 1.0244E+00 | -1.6132E+00 | 1.6054E+00 | -1.0110E+00 | 3.8962E-01 | -8.3707E-02 | 7.6772E-03 |
| S9 | 1.0742E-01 | -5.3276E-01 | 1.2168E+00 | -1.6684E+00 | 1.4283E+00 | -7.7297E-01 | 2.5653E-01 | -4.7791E-02 | 3.8457E-03 |
| S10 | -1.0211E-02 | -2.6521E-01 | 5.4493E-01 | -6.0574E-01 | 4.0222E-01 | -1.5899E-01 | 3.4675E-02 | -3.3558E-03 | 5.0160E-05 |
| S11 | 1.2965E-01 | -2.9366E-01 | 3.3656E-01 | -2.5776E-01 | 1.2151E-01 | -3.4585E-02 | 5.3904E-03 | -3.1711E-04 | -7.2487E-06 |
| S12 | 1.3003E-01 | -2.6369E-01 | 2.8334E-01 | -2.0051E-01 | 8.9878E-02 | -2.5188E-02 | 4.2798E-03 | -4.0349E-04 | 1.6206E-05 |
| S13 | 5.7254E-03 | -1.0500E-01 | 1.3051E-01 | -8.7564E-02 | 3.3899E-02 | -7.7654E-03 | 1.0289E-03 | -7.1735E-05 | 1.9854E-06 |
| S14 | 2.1073E-02 | -5.8337E-02 | 9.1082E-02 | -6.3829E-02 | 2.4609E-02 | -5.5830E-03 | 7.3973E-04 | -5.2882E-05 | 1.5755E-06 |
| S15 | -3.9933E-01 | 2.8681E-01 | -1.2756E-01 | 4.2716E-02 | -1.0156E-02 | 1.5683E-03 | -1.4680E-04 | 7.5350E-06 | -1.6265E-07 |
| S16 | -2.1395E-01 | 1.6150E-01 | -8.6607E-02 | 3.2569E-02 | -8.4836E-03 | 1.4745E-03 | -1.6072E-04 | 9.8305E-06 | -2.5575E-07 |
Table 20
Table 21 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 7
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
Table 21
Figure 14 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 7, indicates the light of different wave length
Deviate via the converging focal point after lens group.Figure 14 B shows the astigmatism curve of the optical imaging lens group of embodiment 7, table
Show meridianal image surface bending and sagittal image surface bending.Figure 14 C shows the distortion curve of the optical imaging lens group of embodiment 7,
Indicate distortion sizes values corresponding to different image heights.The ratio chromatism, that Figure 14 D shows the optical imaging lens group of embodiment 7 is bent
Line indicates light via the deviation of the different image heights after lens group on imaging surface.According to Figure 14 A to Figure 14 D it is found that reality
Applying optical imaging lens group given by example 7 can be realized good image quality.
Embodiment 8
The optical imaging lens group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 8.
As shown in figure 15, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 22 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 8
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 23
Table 24 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 8
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 6.14 |
| TTL(mm) | 5.58 | f4(mm) | 1096.61 |
| HFOV(°) | 37.0 | f5(mm) | -17.20 |
| f(mm) | 4.34 | f6(mm) | 131.08 |
| f1(mm) | 6.23 | f7(mm) | 4.23 |
| f2(mm) | -8.12 | f8(mm) | -3.91 |
Table 24
Figure 16 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 8, indicates the light of different wave length
Deviate via the converging focal point after lens group.Figure 16 B shows the astigmatism curve of the optical imaging lens group of embodiment 8, table
Show meridianal image surface bending and sagittal image surface bending.Figure 16 C shows the distortion curve of the optical imaging lens group of embodiment 8,
Indicate distortion sizes values corresponding to different image heights.The ratio chromatism, that Figure 16 D shows the optical imaging lens group of embodiment 8 is bent
Line indicates light via the deviation of the different image heights after lens group on imaging surface.According to Figure 16 A to Figure 16 D it is found that reality
Applying optical imaging lens group given by example 8 can be realized good image quality.
Embodiment 9
The optical imaging lens group according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 9.
As shown in figure 17, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 25 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 9
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 6.8184E-03 | -3.3108E-03 | 1.2774E-02 | -2.2916E-02 | 2.2011E-02 | -1.2504E-02 | 4.1501E-03 | -7.5175E-04 | 5.7014E-05 |
| S2 | 7.0674E-03 | 2.2899E-03 | -1.9307E-02 | 1.2469E-02 | -2.1082E-03 | -1.1210E-03 | 6.3774E-04 | -1.2325E-04 | 8.4538E-06 |
| S3 | 9.7935E-02 | -1.9631E-01 | 2.2827E-01 | -2.0758E-01 | 1.3772E-01 | -6.0798E-02 | 1.6945E-02 | -2.7361E-03 | 1.9852E-04 |
| S4 | -3.7915E-02 | 1.4567E-01 | -2.7136E-01 | 2.7514E-01 | -1.6108E-01 | 4.5030E-02 | 1.2936E-03 | -3.5114E-03 | 5.1903E-04 |
| S5 | -4.7405E-02 | 1.3954E-01 | -2.9086E-01 | 4.1199E-01 | -3.9654E-01 | 2.4523E-01 | -9.6384E-02 | 2.3275E-02 | -2.7018E-03 |
| S6 | -1.9179E-02 | -4.5905E-03 | 3.0267E-02 | -8.2492E-02 | 1.2074E-01 | -1.0989E-01 | 5.6831E-02 | -1.4668E-02 | 1.3976E-03 |
| S7 | -4.0256E-02 | 2.6843E-02 | -1.2871E-01 | 1.8399E-01 | -1.4826E-01 | 6.6234E-02 | -1.5124E-02 | 1.6090E-03 | -1.2425E-04 |
| S8 | 2.0397E-02 | -1.9739E-01 | 5.0384E-01 | -9.0386E-01 | 1.0265E+00 | -7.3425E-01 | 3.1778E-01 | -7.5697E-02 | 7.6070E-03 |
| S9 | 7.6479E-02 | -4.1579E-01 | 9.9830E-01 | -1.4860E+00 | 1.4252E+00 | -8.7953E-01 | 3.3421E-01 | -7.0818E-02 | 6.3861E-03 |
| S10 | 2.9440E-02 | -3.9707E-01 | 7.4698E-01 | -8.4407E-01 | 6.2060E-01 | -2.9538E-01 | 8.6901E-02 | -1.4232E-02 | 9.8630E-04 |
| S11 | 1.1727E-01 | -2.6927E-01 | 3.1374E-01 | -2.7665E-01 | 1.7018E-01 | -7.0184E-02 | 1.7776E-02 | -2.4023E-03 | 1.2847E-04 |
| S12 | 5.0543E-02 | -6.1577E-02 | 1.6240E-02 | 5.7151E-03 | -7.1839E-03 | 2.9817E-03 | -6.3890E-04 | 6.9944E-05 | -3.0798E-06 |
| S13 | -8.4575E-02 | 3.9484E-02 | -3.4243E-03 | -1.7443E-02 | 1.2092E-02 | -3.6606E-03 | 5.7561E-04 | -4.5338E-05 | 1.3888E-06 |
| S14 | -1.1761E-02 | -5.6264E-04 | 4.3577E-02 | -4.6561E-02 | 2.2510E-02 | -5.9579E-03 | 8.8707E-04 | -6.9713E-05 | 2.2516E-06 |
| S15 | -4.1058E-01 | 3.2341E-01 | -1.7017E-01 | 6.6799E-02 | -1.7825E-02 | 3.0158E-03 | -3.0760E-04 | 1.7270E-05 | -4.1101E-07 |
| S16 | -2.1908E-01 | 1.7128E-01 | -9.7227E-02 | 3.8339E-02 | -1.0365E-02 | 1.8603E-03 | -2.0905E-04 | 1.3181E-05 | -3.5348E-07 |
Table 26
Table 27 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 9
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
Table 27
Figure 18 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 9, indicates the light of different wave length
Deviate via the converging focal point after lens group.Figure 18 B shows the astigmatism curve of the optical imaging lens group of embodiment 9, table
Show meridianal image surface bending and sagittal image surface bending.Figure 18 C shows the distortion curve of the optical imaging lens group of embodiment 9,
Indicate distortion sizes values corresponding to different image heights.The ratio chromatism, that Figure 18 D shows the optical imaging lens group of embodiment 9 is bent
Line indicates light via the deviation of the different image heights after lens group on imaging surface.According to Figure 18 A to Figure 18 D it is found that reality
Applying optical imaging lens group given by example 9 can be realized good image quality.
Embodiment 10
The optical imaging lens group according to the embodiment of the present application 10 is described referring to Figure 19 to Figure 20 D.Figure 19 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 10.
As shown in figure 19, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 28 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 10
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens of the first lens E1 into the 8th lens E8
Face and image side surface are aspherical.Table 29 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 10, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 29
Table 30 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 10
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 6.98 |
| TTL(mm) | 5.55 | f4(mm) | -705.36 |
| HFOV(°) | 37.1 | f5(mm) | -55.18 |
| f(mm) | 4.32 | f6(mm) | -15.40 |
| f1(mm) | 5.89 | f7(mm) | 4.41 |
| f2(mm) | -8.19 | f8(mm) | -5.16 |
Table 30
Figure 20 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 10, indicates the light of different wave length
Line deviates via the converging focal point after lens group.Figure 20 B shows the astigmatism curve of the optical imaging lens group of embodiment 10,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 20 C shows the distortion curve of the optical imaging lens group of embodiment 10,
It indicates distortion sizes values corresponding to different image heights.Figure 20 D shows the multiplying power color of the optical imaging lens group of embodiment 10
Poor curve indicates light via the deviation of the different image heights after lens group on imaging surface.0A to Figure 20 D can according to fig. 2
Know, optical imaging lens group given by embodiment 10 can be realized good image quality.
Embodiment 11
The optical imaging lens group according to the embodiment of the present application 11 is described referring to Figure 21 to Figure 22 D.Figure 21 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 11.
As shown in figure 21, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 31 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 11
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 31
As shown in Table 31, in embodiment 11, the object side of any one lens of the first lens E1 into the 8th lens E8
Face and image side surface are aspherical.Table 32 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 11, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 7.8163E-03 | -9.1148E-03 | 2.1327E-02 | -2.8386E-02 | 2.2402E-02 | -1.0943E-02 | 3.2137E-03 | -5.2564E-04 | 3.6490E-05 |
| S2 | 8.5771E-03 | -1.3733E-03 | -1.9688E-02 | 2.1130E-02 | -1.2334E-02 | 4.6027E-03 | -1.1270E-03 | 1.6833E-04 | -1.1922E-05 |
| S3 | 7.1932E-02 | -1.2763E-01 | 1.1003E-01 | -6.9737E-02 | 3.1539E-02 | -7.5430E-03 | 1.0935E-04 | 3.3347E-04 | -4.8977E-05 |
| S4 | -2.4427E-02 | 1.1350E-01 | -2.6163E-01 | 3.5118E-01 | -3.1485E-01 | 1.9083E-01 | -7.5256E-02 | 1.7698E-02 | -1.8826E-03 |
| S5 | -3.1590E-02 | 6.1999E-02 | -6.6199E-02 | 2.9417E-03 | 7.4625E-02 | -9.4725E-02 | 5.3388E-02 | -1.4070E-02 | 1.4037E-03 |
| S6 | -1.9581E-02 | -7.1753E-03 | 3.5799E-02 | -9.2040E-02 | 1.3178E-01 | -1.1798E-01 | 6.1358E-02 | -1.6753E-02 | 1.8710E-03 |
| S7 | -3.4827E-02 | 3.4242E-02 | -1.5269E-01 | 2.3441E-01 | -2.2303E-01 | 1.3502E-01 | -5.2188E-02 | 1.2066E-02 | -1.2682E-03 |
| S8 | -8.4264E-03 | -5.2244E-02 | 1.0102E-01 | -2.0159E-01 | 2.4723E-01 | -1.8801E-01 | 8.5137E-02 | -2.0927E-02 | 2.1538E-03 |
| S9 | 2.5759E-02 | -2.5960E-01 | 5.2553E-01 | -6.1423E-01 | 4.4670E-01 | -2.0289E-01 | 5.3209E-02 | -6.6194E-03 | 1.8897E-04 |
| S10 | 7.8165E-02 | -5.3277E-01 | 9.3291E-01 | -9.8255E-01 | 6.7014E-01 | -2.9594E-01 | 8.0991E-02 | -1.2368E-02 | 7.9950E-04 |
| S11 | 1.1038E-01 | -2.9288E-01 | 3.5901E-01 | -2.9122E-01 | 1.5104E-01 | -4.9447E-02 | 9.2790E-03 | -7.7246E-04 | 7.2252E-06 |
| S12 | 5.3386E-02 | -9.5660E-02 | 8.1930E-02 | -4.6995E-02 | 1.6036E-02 | -3.1899E-03 | 3.6174E-04 | -2.2151E-05 | 6.2891E-07 |
| S13 | -9.6582E-02 | 4.6475E-02 | -1.7897E-02 | 5.4860E-03 | -3.3171E-03 | 1.6389E-03 | -4.1523E-04 | 5.0730E-05 | -2.4004E-06 |
| S14 | -2.0166E-03 | -1.4770E-02 | 3.4171E-02 | -2.8689E-02 | 1.3287E-02 | -3.6025E-03 | 5.6199E-04 | -4.6548E-05 | 1.5839E-06 |
| S15 | -2.6126E-01 | 1.8217E-01 | -1.0043E-01 | 4.7343E-02 | -1.4753E-02 | 2.7608E-03 | -2.9898E-04 | 1.7270E-05 | -4.1101E-07 |
| S16 | -1.4750E-01 | 1.0771E-01 | -6.3118E-02 | 2.6521E-02 | -7.5761E-03 | 1.4050E-03 | -1.6000E-04 | 1.0097E-05 | -2.6907E-07 |
Table 32
Table 33 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 11
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.39 | f3(mm) | 7.49 |
| TTL(mm) | 5.72 | f4(mm) | -6504.20 |
| HFOV(°) | 36.5 | f5(mm) | -19.04 |
| f(mm) | 4.44 | f6(mm) | -147.35 |
| f1(mm) | 4.91 | f7(mm) | 4.83 |
| f2(mm) | -6.56 | f8(mm) | -4.62 |
Table 33
Figure 22 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 11, indicates the light of different wave length
Line deviates via the converging focal point after lens group.Figure 22 B shows the astigmatism curve of the optical imaging lens group of embodiment 11,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 22 C shows the distortion curve of the optical imaging lens group of embodiment 11,
It indicates distortion sizes values corresponding to different image heights.Figure 22 D shows the multiplying power color of the optical imaging lens group of embodiment 11
Poor curve indicates light via the deviation of the different image heights after lens group on imaging surface.2A to Figure 22 D can according to fig. 2
Know, optical imaging lens group given by embodiment 11 can be realized good image quality.
Embodiment 12
The optical imaging lens group according to the embodiment of the present application 12 is described referring to Figure 23 to Figure 24 D.Figure 23 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 12.
As shown in figure 23, according to the optical imaging lens group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 34 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens group of embodiment 12
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 34
As shown in Table 34, in embodiment 12, the object side of any one lens of the first lens E1 into the 8th lens E8
Face and image side surface are aspherical.Table 35 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 12, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 35
Table 36 provides one of effective pixel area diagonal line length on the imaging surface S19 of optical imaging lens group in embodiment 12
Half ImgH, optics total length TTL, maximum angle of half field-of view HFOV, total effective focal length f of optical imaging lens group and each lens
Effective focal length f1 to f8.
| ImgH(mm) | 3.38 | f3(mm) | 7.00 |
| TTL(mm) | 5.66 | f4(mm) | -184.23 |
| HFOV(°) | 36.1 | f5(mm) | -29.22 |
| f(mm) | 4.49 | f6(mm) | -32.62 |
| f1(mm) | 5.79 | f7(mm) | 3.18 |
| f2(mm) | -7.85 | f8(mm) | -3.02 |
Table 36
Figure 24 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 12, indicates the light of different wave length
Line deviates via the converging focal point after lens group.Figure 24 B shows the astigmatism curve of the optical imaging lens group of embodiment 12,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 24 C shows the distortion curve of the optical imaging lens group of embodiment 12,
It indicates distortion sizes values corresponding to different image heights.Figure 24 D shows the multiplying power color of the optical imaging lens group of embodiment 12
Poor curve indicates light via the deviation of the different image heights after lens group on imaging surface.4A to Figure 24 D can according to fig. 2
Know, optical imaging lens group given by embodiment 12 can be realized good image quality.
To sum up, embodiment 1 to embodiment 12 meets relationship shown in table 37 respectively.
Table 37
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, be also possible to
The image-forming module being integrated on the mobile electronic devices such as mobile phone.It is saturating that the imaging device is equipped with optical imagery described above
Microscope group.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (20)
1. optical imaging lens group, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens,
4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that
First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
Second lens have negative power, and image side surface is concave surface；
The third lens have positive light coke, and object side is convex surface；
4th lens have focal power；
5th lens have focal power；
6th lens have focal power, and object side is convex surface, and image side surface is concave surface；
7th lens have positive light coke；
8th lens have focal power；And
Total effective focal length f of the optical imaging lens group and the Entry pupil diameters EPD of the optical imaging lens group meet f/EPD
< 1.4.
2. optical imaging lens group according to claim 1, which is characterized in that the effective focal length f1 of first lens with
The half ImgH of effective pixel area diagonal line length meets 1 < f1/ImgH < 2 on the imaging surface of the optical imaging lens group.
3. optical imaging lens group according to claim 1, which is characterized in that the curvature of the object side of first lens
The radius of curvature R 2 of the image side surface of radius R1 and first lens meets 0.1 < R1/R2 < 0.5.
4. optical imaging lens group according to claim 1, which is characterized in that the effective focal length f2 of second lens with
The effective focal length f3 of the third lens meets -1.5 < f2/f3 < -0.5.
5. optical imaging lens group according to claim 1, which is characterized in that the object side of first lens is to described
The radius of curvature R 5 of the object side of distance TTL of the imaging surface of optical imaging lens group on the optical axis and the third lens
Meet 1 < TTL/R5 < 3.
6. optical imaging lens group according to claim 1, which is characterized in that the curvature of the object side of the 6th lens
The radius of curvature R 12 of the image side surface of radius R11 and the 6th lens meets 1 < R11/R12 < 1.5.
7. optical imaging lens group according to claim 1, which is characterized in that first lens are on the optical axis
Center thickness CT1, the 4th lens are in the center thickness CT4 on the optical axis with the 5th lens on the optical axis
Center thickness CT5 meets 1 < CT1/ (CT4+CT5) < 2.
8. optical imaging lens group according to claim 1, which is characterized in that the 7th lens are on the optical axis
Center thickness CT7 and the 8th lens are in the 1 < CT7/CT8 < 2 of center thickness CT8 satisfaction on the optical axis.
9. optical imaging lens group according to claim 1, which is characterized in that first lens, second lens
With the group focus of the combined focal length f123 of the third lens and the 4th lens, the 5th lens and the 6th lens
Meet -4 < f456/f123 < -1.5 away from f456.
10. optical imaging lens group according to any one of claim 1 to 9, which is characterized in that first lens are extremely
Summation ∑ CT and first lens to eightth lens of 8th lens respectively at the center thickness on the optical axis
The summation ∑ AT of spacing distance of middle two lens of arbitrary neighborhood on the optical axis meets 2 < ∑ CT/ ∑ AT < 2.5.
It by object side to image side sequentially include: that the first lens, the second lens, third are saturating along optical axis 11. optical imaging lens group
Mirror, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that
First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
Second lens have negative power, and image side surface is concave surface；
The third lens have positive light coke, and object side is convex surface；
4th lens have focal power；
5th lens have focal power；
6th lens have focal power, and object side is convex surface, and image side surface is concave surface；
7th lens have positive light coke；
8th lens have focal power；And
It is the combined focal length f123 of first lens, second lens and the third lens and the 4th lens, described
The combined focal length f456 of 5th lens and the 6th lens meets -4 < f456/f123 < -1.5.
12. optical imaging lens group according to claim 11, which is characterized in that the effective focal length f1 of first lens
Meet 1 < f1/ImgH < with the half ImgH of effective pixel area diagonal line length on the imaging surface of the optical imaging lens group
2。
13. optical imaging lens group according to claim 12, which is characterized in that the optical imaging lens group always has
Effect focal length f and the Entry pupil diameters EPD of the optical imaging lens group meet f/EPD < 1.4.
14. optical imaging lens group according to claim 11, which is characterized in that the song of the object side of first lens
The radius of curvature R 2 of the image side surface of rate radius R1 and first lens meets 0.1 < R1/R2 < 0.5.
15. optical imaging lens group according to claim 11, which is characterized in that the effective focal length f2 of second lens
Meet -1.5 < f2/f3 < -0.5 with the effective focal length f3 of the third lens.
16. optical imaging lens group according to claim 11, which is characterized in that the song of the object side of the 6th lens
The radius of curvature R 12 of the image side surface of rate radius R11 and the 6th lens meets 1 < R11/R12 < 1.5.
17. optical imaging lens group described in any one of 1 to 16 according to claim 1, which is characterized in that first lens
To the 8th lens respectively at the center thickness on the optical axis summation ∑ CT and first lens to the described 8th thoroughly
The summation ∑ AT of spacing distance of two lens of arbitrary neighborhood on the optical axis meets 2 < ∑ CT/ ∑ AT < 2.5 in mirror.
18. optical imaging lens group according to claim 17, which is characterized in that first lens are on the optical axis
Center thickness CT1, the 4th lens on the optical axis center thickness CT4 and the 5th lens on the optical axis
Center thickness CT5 meet 1 < CT1/ (CT4+CT5) < 2.
19. optical imaging lens group according to claim 17, which is characterized in that the 7th lens are on the optical axis
Center thickness CT7 and the 8th lens on the optical axis center thickness CT8 meet 1 < CT7/CT8 < 2.
20. optical imaging lens group described in any one of 1 to 16 according to claim 1, which is characterized in that first lens
Object side to distance TTL of the imaging surface on the optical axis of the optical imaging lens group and the object side of the third lens
The radius of curvature R 5 in face meets 1 < TTL/R5 < 3.
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| CN109343203A (en) * | 2018-11-27 | 2019-02-15 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| TWI731546B (en) * | 2019-12-20 | 2021-06-21 | 大陸商玉晶光電（廈門）有限公司 | Optical imaging lens |
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| CN109343203A (en) * | 2018-11-27 | 2019-02-15 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| WO2020107962A1 (en) * | 2018-11-27 | 2020-06-04 | 浙江舜宇光学有限公司 | Optical imaging lens assembly |
| TWI731546B (en) * | 2019-12-20 | 2021-06-21 | 大陸商玉晶光電（廈門）有限公司 | Optical imaging lens |
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| CN113138456A (en) * | 2020-01-20 | 2021-07-20 | 大立光电股份有限公司 | Photographing optical lens assembly, image capturing device and electronic device |
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