CN209215715U - Optical lens group - Google Patents
Optical lens group Download PDFInfo
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- CN209215715U CN209215715U CN201821963448.3U CN201821963448U CN209215715U CN 209215715 U CN209215715 U CN 209215715U CN 201821963448 U CN201821963448 U CN 201821963448U CN 209215715 U CN209215715 U CN 209215715U
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Abstract
This application discloses a kind of optical lens group, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens by object side to image side along optical axis.First lens have negative power；Second lens have negative power；The third lens have positive light coke；4th lens have positive light coke；5th lens have focal power, and object side is convex surface；6th lens have positive light coke.Wherein, the maximum incident angle degree CRAmax of the chief ray incident electronics photosensory assembly of the maximum angle of half field-of view semi-FOV and optical lens group of optical lens group meets 5 < semi-FOV/CRAmax < 10.
Description
Technical field
This application involves a kind of optical lens groups, more particularly, to the optical lens group including six-element lens.
Background technique
Wide-angle lens has the advantages that visual field is big, the depth of field is long, thus is normally used for shooting the scenery of broad scope.With
The continuous variation of the market demand, bugeye lens are increasingly used in vehicle-mounted, monitoring, virtual reality technology/augmented reality
In the fields such as technology (VR/AR).However, bugeye lens in the prior art there are temperature characterisitics it is poor, pixel is low the problems such as, sternly
Limit again its industry, in terms of application.
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 lens group of at least one above-mentioned disadvantage.
On the one hand, this application provides such a optical lens group, the lens group along optical axis by object side to image side sequentially
It include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have negative
Focal power；Second lens can have negative power；The third lens can have positive light coke；4th lens can have positive light coke；
5th lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, optical lens group
The maximum incident angle degree CRAmax of maximum angle of half field-of view semi-FOV and chief ray incident electronics photosensory assembly can meet 5 <
Semi-FOV/CRAmax < 10.
In one embodiment, the refractive index N1 of the first lens and the refractive index N4 of the 4th lens can meet N1/N4 <
0.9。
In one embodiment, the effective focal length f4 of the 4th lens and the effective focal length f1 of the first lens can meet -2.5
< f4/f1 < -1.
In one embodiment, the curvature of the image side surface of the radius of curvature R 8 and the 5th lens of the image side surface of the 4th lens
Radius R10 can meet -1.2 < R8/R10 < -0.7.
In one embodiment, total effective coke of the radius of curvature R 11 Yu optical lens group of the object side of the 6th lens
1 < R11/f < 1.5 can be met away from f.
In one embodiment, the 4th lens are in center thickness CT4 and the first lens to the 6th lens point on optical axis
0.3 < CT4/ ∑ CT < 0.6 can not be met in the summation ∑ CT of the center thickness on optical axis.
In one embodiment, spacing distance T45 and the 5th lens and the 6th on the axis of the 4th lens and the 5th lens
Spacing distance T56 can meet 0 < T45/T56 < 0.7 on the axis of lens.
In one embodiment, the image side of the effective half bore DT11 Yu the 6th lens of the object side of the first lens
Effective half bore DT62 in face meets 1 < DT11/DT62 < 1.5.
In one embodiment, the sense electronics of the effective half bore DT62 and optical lens group of the image side surface of the 6th lens
The half ImgH of the effective pixel area diagonal line length of optical assembly can meet 0.5 < DT62/ImgH < 1.
In one embodiment, the image side surface of effective half bore DT31 and the 4th lens of the object side of the third lens
Effective half bore DT42 can meet 0.4 < DT31/DT42 < 0.8.
In one embodiment, the intersection point of the object side of the 6th lens and optical axis to the object side of the 6th lens maximum
Distance SAG61 and the 6th lens can meet 0.4 < SAG61/ in the center thickness CT6 on optical axis on the axis on effective half bore vertex
CT6 < 0.8.
In one embodiment, the edge thickness ET4 of the 4th lens, the edge thickness ET5 and the 6th of the 5th lens are saturating
The edge thickness ET6 of mirror can meet 1.5 < ET4/ (ET5+ET6) < 2.1.
In one embodiment, the first lens, the second lens, the third lens effective half bore can successively successively decrease,
Four lens, the 5th lens, the 6th lens effective half bore can be incremented by successively.
In one embodiment, the use wavelength band of optical lens group can be 800nm to 1000nm.
On the other hand, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the 4th lens is effective
The effective focal length f1 of focal length f4 and the first lens can meet -2.5 < f4/f1 < -1.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the image side of the 4th lens
The radius of curvature R 10 of the image side surface of the radius of curvature R 8 and the 5th lens in face can meet -1.2 < R8/R10 < -0.7.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the object side of the 6th lens
The radius of curvature R 11 in face and total effective focal length f of optical lens group can meet 1 < R11/f < 1.5.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the 4th lens are in optical axis
On center thickness CT4 and the first lens to the 6th lens respectively at the summation ∑ CT of the center thickness on optical axis can meet 0.3
< CT4/ ∑ CT < 0.6.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the object side of the first lens
Effective half bore DT62 of the image side surface of effective half bore DT11 and the 6th lens in face meets 1 < DT11/DT62 <
1.5。
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the image side of the 6th lens
The half ImgH of the effective pixel area diagonal line length of the electronics photosensory assembly of effective half bore DT62 and optical lens group in face
0.5 < DT62/ImgH < 1 can be met.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the object side of the third lens
Effective half bore DT42 of the image side surface of effective half bore DT31 and the 4th lens in face can meet 0.4 < DT31/DT42 <
0.8。
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the object side of the 6th lens
Distance SAG61 and the 6th lens on the intersection point of face and optical axis to the axis on maximum effective half bore vertex of the object side of the 6th lens
0.4 < SAG61/CT6 < 0.8 can be met in the center thickness CT6 on optical axis.
In another aspect, this application provides such a optical lens group, the lens group along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens can have
Negative power；Second lens can have focal power；The third lens can have focal power；4th lens can have positive light coke；The
Five lens have focal power, and object side can be convex surface；6th lens can have positive light coke.Wherein, the edge of the 4th lens
The edge thickness ET6 of thickness E T4, the edge thickness ET5 of the 5th lens and the 6th lens can meet 1.5 < ET4/ (ET5+ET6)
< 2.1.
The application use six-element 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 lens group has miniaturization, the temperature drift that disappears, ultra-wide angle, high imaging
At least one beneficial effect such as quality.
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 lens group according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 1, F-theta distortion curve and
Relative illumination curve；
Fig. 3 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 2, F-theta distortion curve and
Relative illumination curve；
Fig. 5 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 3, F-theta distortion curve and
Relative illumination curve；
Fig. 7 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 4, F-theta distortion curve and
Relative illumination curve；
Fig. 9 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 5, F-theta distortion curve with
And relative illumination curve；
Figure 11 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 6；
Figure 12 A to figure 12 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 6, F-theta distortion curve with
And relative illumination curve；
Figure 13 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 7, F-theta distortion curve with
And relative illumination curve；
Figure 15 shows the structural schematic diagram of the optical lens group according to the embodiment of the present application 8；
Figure 16 A to Figure 16 C respectively illustrate the astigmatism curve of the optical lens group of embodiment 8, F-theta distortion curve with
And relative illumination 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.Surface in each lens near object is known as this thoroughly
The object side of mirror is known as the image side surface of the lens in each 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 lens group according to the application illustrative embodiments may include such as six lens with focal power,
That is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.This six-element lens is along optical axis
By object side to image side sequential.Can have between air in the first lens into the 6th lens, between any two adjacent lens
Every.
In the exemplary embodiment, the first lens can have negative power；Second lens have positive light coke or negative light
Focal power；The third lens have positive light coke or negative power；4th lens can have positive light coke；5th lens have positive light focus
Degree or negative power, object side can be convex surface；6th lens can have positive light coke.Each power of lens of reasonable distribution with
Face type is conducive to the imaging image quality of improving optical system.
In the exemplary embodiment, the object side of the first lens can be convex surface, and image side surface can be concave surface.
In the exemplary embodiment, the second lens can have negative power, and image side surface can be concave surface.
In the exemplary embodiment, the third lens can have positive light coke.
In the exemplary embodiment, the first lens, the second lens, the third lens effective half bore can successively successively decrease,
4th lens, the 5th lens, effective half bore of the 6th lens are incremented by successively.Effective half bore of front and back group lens is rationally taken
Match, can preferably realize the requirement of ultra-wide angle, small CRA, short TTL, to fundamentally promote the image quality of lens group.
In the exemplary embodiment, the optical lens group of the application can meet 5 < semi-FOV/CRAmax < of conditional
10, wherein semi-FOV is the maximum angle of half field-of view of optical lens group, and CRAmax is the chief ray incident electronics of optical lens group
The maximum incident angle degree of photosensory assembly.More specifically, semi-FOV and CRAmax can further meet 5 < semi-FOV/
CRAmax < 8, for example, 5.45≤semi-FOV/CRAmax≤6.01.Guaranteeing that CRA is lesser simultaneously, optical system has more
Big field angle, to meet the characteristic of system ultra-wide angle.
In the exemplary embodiment, the optical lens group of the application can meet -2.5 < -1 < f4/f1 of conditional,
In, f4 is the effective focal length of the 4th lens, and f1 is the effective focal length of the first lens.More specifically, f4 and f1 can further meet-
2.2≤f4/f1≤- 1.5, for example, -2.09≤f4/f1≤- 1.60.By reasonable distribution focal power, be conducive to preferably realize
Ultra-wide angle visual field, the overall performance of lifting system.
In the exemplary embodiment, the optical lens group of the application can meet conditional N1/N4 < 0.9, wherein N1 is
The refractive index of first lens, N4 are the refractive index of the 4th lens.More specifically, N1 and N4 can further meet 0.8 < N1/N4 <
0.9, for example, N1/N4=0.84.The reasonable distribution of refractive index facilitates the temperature drift characteristic of improvement system, the environment of lifting system
Adaptability.
In the exemplary embodiment, the optical lens group of the application can meet -1.2 < -0.7 < R8/R10 of conditional,
Wherein, R8 is the radius of curvature of the image side surface of the 4th lens, and R10 is the radius of curvature of the image side surface of the 5th lens.More specifically,
R8 and R10 can further meet -1.02≤R8/R10≤- 0.78.Radius of curvature it is reasonably combined, help meeting temperature drift
Under the premise of energy, the CRA matching degree of lifting system and chip.Optionally, the image side surface of the 4th lens can be convex surface, and the 5th thoroughly
The image side surface of mirror can be concave surface.
In the exemplary embodiment, the optical lens group of the application can meet 1 < R11/f < 1.5 of conditional, wherein
R11 is the radius of curvature of the object side of the 6th lens, and f is total effective focal length of optical lens group.More specifically, R11 and f is into one
Step can meet 1.02≤R11/f≤1.22.Meet 1 < R11/f < 1.5 of conditional, helps to reduce F-THETA distortion, and have
Help the optical property of lifting system.Optionally, the object side of the 6th lens can be convex surface.
In the exemplary embodiment, the optical lens group of the application can meet 0.3 < CT4/ ∑ CT < 0.6 of conditional,
Wherein, CT4 is the 4th lens in the center thickness on optical axis, and ∑ CT is the first lens to the 6th lens on optical axis
The summation of heart thickness.More specifically, CT4 and ∑ CT can further meet 0.3 < CT4/ ∑ CT < 0.4, for example, 0.32≤CT4/
∑CT≤0.35.Meet 0.3 < CT4/ ∑ CT < 0.6 of conditional, helps to realize the temperature drift characteristic of system, while shortening system
Entire length.
In the exemplary embodiment, the optical lens group of the application can meet 0 < T45/T56 < 0.7 of conditional,
In, T45 is spacing distance on the axis of the 4th lens and the 5th lens, and T56 is interval distance on the axis of the 5th lens and the 6th lens
From.More specifically, T45 and T56 can further meet 0.04≤T45/T56≤0.66.Meet 0 < T45/T56 < of conditional
0.7, help to reduce system dimension, and reduce the tolerance sensitivity of system.
In the exemplary embodiment, the optical lens group of the application can meet 1 < DT11/DT62 < 1.5 of conditional,
In, DT11 is effective half bore of the object side of the first lens, and DT62 is effective half bore of the image side surface of the 6th lens.More
Body, DT11 and DT62 can further meet 1.31≤DT11/DT62≤1.42.Meet 1 < DT11/DT62 < 1.5 of conditional,
The requirement of ultra-wide angle, small CRA is helped to realize, and is conducive to shortening system overall length.
In the exemplary embodiment, the optical lens group of the application can meet 0.5 < DT62/ImgH < 1 of conditional,
In, DT62 is effective half bore of the image side surface of the 6th lens, and ImgH is effective picture of the electronics photosensory assembly of optical lens group
The half of plain region diagonal line length.More specifically, DT62 and ImgH can further meet 0.7 < DT62/ImgH < 1, for example,
0.84≤DT62/ImgH≤0.95.Meet 0.5 < DT62/ImgH < 1 of conditional, helps to realize of system and chip CRA
Match, and reduces the size of system.
In the exemplary embodiment, the optical lens group of the application can meet 0.4 < DT31/DT42 < 0.8 of conditional,
Wherein, DT31 is effective half bore of the object side of the third lens, and DT42 is effective half bore of the image side surface of the 4th lens.More
Specifically, DT31 and DT42 can further meet 0.58≤DT31/DT42≤0.65.It is effective by the third lens and the 4th lens
Half bore it is reasonably combined, can preferably realize the distribution of field angle and be conducive to the temperature drift characteristic of improvement system.
In the exemplary embodiment, the optical lens group of the application can meet 0.4 < SAG61/CT6 < 0.8 of conditional,
Wherein, SAG61 be the 6th lens object side and optical axis intersection point to the object side of the 6th lens maximum effective half bore top
Distance on the axis of point, CT6 are the 6th lens in the center thickness on optical axis.More specifically, SAG61 and CT6 can further meet
0.51≤SAG61/CT6≤0.77.Meet 0.4 < SAG61/CT6 < 0.8 of conditional, facilitates the curvature of field of reduction system and abnormal
Become, the optical characteristics of lifting system.
In the exemplary embodiment, the optical lens group of the application can meet conditional 1.5 < ET4/ (ET5+ET6) <
2.1, wherein ET4 is the edge thickness of the 4th lens, and ET5 is the edge thickness of the 5th lens, and ET6 is the edge of the 6th lens
Thickness.More specifically, ET4, ET5 and ET6 can further meet 1.68≤ET4/ (ET5+ET6)≤2.05.By in each lens
Heart thickness it is reasonably combined, help to reduce coma and astigmatism, improve the image quality of surrounding visual field.
According to the near infrared band for the use of wavelength band being about 800nm to 1000nm of the optical lens group of the application.Root
It can be used for infrared band according to the optical lens group of the application, can be used for eyeball tracking, motion capture, monitoring camera etc..
In the exemplary embodiment, above-mentioned optical lens group may also include diaphragm, to promote the image quality of lens group.
Diaphragm may be provided between the third lens and the 4th lens.
Optionally, above-mentioned optical lens group may also include the optical filter for correcting color error ratio and/or be used for guard bit
In the protection glass of the photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above six can be used according to the optical lens group of the above embodiment of the application
Piece.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing
Deng, can effectively the volume of reducing glass group, reduce the susceptibility of lens group and improve the machinability of lens group so that optics
Lens group, which is more advantageous to, to be produced and processed and is applicable to portable electronic product.Optical lens group through the above configuration may be used also
With beneficial effects such as small size, the temperature drift that disappears, ultra-wide angle, high imaging qualities.
In presently filed embodiment, the mirror surface of each lens mostly uses aspherical mirror.The characteristics of non-spherical lens, is:
From lens centre to lens perimeter, curvature is consecutive variations.With the ball from lens centre to lens perimeter with constant curvature
Face lens are different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve astigmatic image error
Advantage.After non-spherical lens, the aberration occurred when imaging can be eliminated, as much as possible so as to improve at image quality
Amount.Optionally, the object side of the first lens, the second lens, the third lens, the 5th lens and each lens in the 6th lens and
At least one of image side surface can be aspherical.Further, the first lens, the second lens, the third lens, the 5th lens and
The object side of each lens in six lens and image side surface are 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 lens group can be changed, to obtain each result and advantage described in this specification.For example,
Although being described by taking six lens as an example in embodiments, which is not limited to include six lens.
If desired, the optical lens group may also include the lens of other quantity.
The specific embodiment for being applicable to the optical lens group of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 C description according to the optical lens group of the embodiment of the present application 1.Fig. 1 is shown according to this Shen
Please embodiment 1 optical lens group structural schematic diagram.
As shown in Figure 1, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 convex 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 positive light coke, 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.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 1 shows surface type, radius of curvature, thickness, material and the circle of each lens of the optical lens group of embodiment 1
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, in the first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and the 6th lens E6
The object side of any one lens and image side surface are aspherical；The object side of 4th lens E4 and image side surface are spherical surface.?
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-S6, S9-S124、A6、A8、A10And A12。
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 3.2504E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.8771E-02 | -5.9239E-03 | 3.7944E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | 4.7351E-02 | -1.2250E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.5360E-01 | 5.7805E-02 | -2.8957E-02 | 7.6292E-02 | -2.2871E-02 |
| S5 | 1.6932E-02 | 2.1113E-02 | -9.5539E-03 | 2.3831E-02 | 0.0000E+00 |
| S6 | -6.5278E-03 | 1.9006E-03 | 2.3732E-02 | 8.3538E-03 | 0.0000E+00 |
| S9 | 8.6637E-03 | -8.5289E-04 | -2.1905E-05 | -4.4856E-05 | 0.0000E+00 |
| S10 | -4.2006E-02 | 1.6291E-02 | -2.9548E-03 | 2.4413E-04 | 0.0000E+00 |
| S11 | 1.1844E-02 | -3.8380E-03 | 6.4889E-04 | -1.0145E-04 | 6.7853E-06 |
| S12 | 2.0143E-02 | -3.2642E-03 | 1.0824E-04 | -2.4373E-05 | 1.9461E-06 |
Table 2
Table 3 give distance TTL of the object side S1 to imaging surface S15 in embodiment 1 from the first lens E1 on optical axis,
The maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective focal length f1
To f6.
| TTL(mm) | 10.00 | f2(mm) | -5.01 |
| semi-FOV(°) | 87.50 | f3(mm) | 6.32 |
| Fno | 2.20 | f4(mm) | 5.76 |
| f(mm) | 1.74 | f5(mm) | 47.57 |
| f1(mm) | -3.60 | f6(mm) | 4.15 |
Table 3
Optical lens group in embodiment 1 meets:
Semi-FOV/CRAmax=5.84, wherein semi-FOV is the maximum angle of half field-of view of optical lens group, CRAmax
For the maximum incident angle degree of the chief ray incident electronics photosensory assembly of optical lens group；
F4/f1=-1.60, wherein f4 is the effective focal length of the 4th lens E4, and f1 is the effective focal length of the first lens E1；
N1/N4=0.84, wherein N1 is the refractive index of the first lens E1, and N4 is the refractive index of the 4th lens E4；
R8/R10=-0.78, wherein R8 is the radius of curvature of the image side surface S8 of the 4th lens E4, and R10 is the 5th lens E5
Image side surface S10 radius of curvature；
R11/f=1.18, wherein R11 is the radius of curvature of the object side S11 of the 6th lens E6, and f is optical lens group
Total effective focal length；
CT4/ ∑ CT=0.34, wherein CT4 is the 4th lens E4 in the center thickness on optical axis, and ∑ CT is the first lens
Summation of the E1 to the 6th lens E6 respectively at the center thickness on optical axis；
T45/T56=0.28, wherein T45 is spacing distance on the axis of the 4th lens E4 and the 5th lens E5, T56 the
Spacing distance on the axis of five lens E5 and the 6th lens E6；
DT11/DT62=1.33, wherein DT11 is effective half bore of the object side S1 of the first lens E1, DT62 the
Effective half bore of the image side surface S12 of six lens E6；
DT62/ImgH=0.92, wherein DT62 is effective half bore of the image side surface S12 of the 6th lens E6, and ImgH is electricity
The half of the effective pixel area diagonal line length of sub- photosensory assembly；
DT31/DT42=0.61, wherein DT31 is effective half bore of the object side S5 of the third lens E3, DT42 the
Effective half bore of the image side surface S8 of four lens E4；
SAG61/CT6=0.77, wherein SAG61 be the 6th lens E6 object side S11 and optical axis intersection point to the 6th thoroughly
Distance on the axis on maximum effective half bore vertex of the object side S11 of mirror E6, CT6 are the 6th lens E6 thick in the center on optical axis
Degree；
ET4/ (ET5+ET6)=1.90, wherein ET4 is the edge thickness of the 4th lens E4, and ET5 is the 5th lens E5's
Edge thickness, ET6 are the edge thickness of the 6th lens E6.
Fig. 2A shows the astigmatism curve of the optical lens group of embodiment 1, indicates meridianal image surface bending and sagittal image surface
Bending.Fig. 2 B shows the F-theta distortion curve of the optical lens group of embodiment 1, indicates to correspond in the case of different perspectives
Distortion sizes values.Fig. 2 C shows the relative illumination curve of the optical lens group of embodiment 1, in the case of indicating different perspectives
Relative illumination.A and Fig. 2 C is it is found that optical lens group given by embodiment 1 can be realized good imaging product according to fig. 2
Matter.
Embodiment 2
Referring to Fig. 3 to Fig. 4 C description according to the optical lens group of the embodiment of the present application 2.In the present embodiment and following reality
It applies in example, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2
The structural schematic diagram of optical lens group.
As shown in figure 3, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 positive light coke, and object side S7 is concave surface, and image side surface S8 is convex 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 positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 4 shows surface type, radius of curvature, thickness, material and the circle of each lens of the optical lens group of embodiment 2
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in six lens E6 and image side surface are aspherical；The object side of 4th lens E4 and image side surface
It is spherical surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.
Table 5
Table 6 give distance TTL of the object side S1 to imaging surface S15 in embodiment 2 from the first lens E1 on optical axis,
The maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective focal length f1
To f6.
| TTL(mm) | 10.00 | f2(mm) | -10.79 |
| semi-FOV(°) | 87.50 | f3(mm) | 6.67 |
| Fno | 2.20 | f4(mm) | 5.67 |
| f(mm) | 1.74 | f5(mm) | 38.61 |
| f1(mm) | -2.71 | f6(mm) | 4.29 |
Table 6
Fig. 4 A shows the astigmatism curve of the optical lens group of embodiment 2, indicates meridianal image surface bending and sagittal image surface
Bending.Fig. 4 B shows the F-theta distortion curve of the optical lens group of embodiment 2, indicates to correspond in the case of different perspectives
Distortion sizes values.Fig. 4 C shows the relative illumination curve of the optical lens group of embodiment 2, in the case of indicating different perspectives
Relative illumination.According to Fig. 4 A and Fig. 4 C it is found that optical lens group given by embodiment 2 can be realized good imaging product
Matter.
Embodiment 3
The optical lens group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 C.Fig. 5 is shown according to this
Apply for the structural schematic diagram of the optical lens group of embodiment 3.
As shown in figure 5, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 positive light coke, and object side S7 is concave surface, and image side surface S8 is convex 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 positive light coke,
Its object side S11 is convex surface, and image side surface S12 is convex surface.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 7 shows surface type, radius of curvature, thickness, material and the circle of each lens of the optical lens group of embodiment 3
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in six lens E6 and image side surface are aspherical；The object side of 4th lens E4 and image side surface
It is spherical surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 3.2512E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.7458E-02 | -6.4254E-03 | -5.6706E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | -1.9941E-03 | -4.9922E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 7.3125E-02 | 5.6705E-02 | -8.1373E-02 | 1.5256E-01 | -8.0900E-02 |
| S5 | 2.3301E-02 | 1.6458E-02 | 1.3483E-02 | -6.1351E-03 | 0.0000E+00 |
| S6 | -7.0049E-03 | 2.1914E-02 | -1.7069E-02 | 5.6989E-02 | 0.0000E+00 |
| S9 | 1.6629E-02 | -3.6897E-03 | 6.3400E-04 | -1.1582E-04 | 0.0000E+00 |
| S10 | -4.2685E-02 | 1.5324E-02 | -2.7214E-03 | 2.0086E-04 | 0.0000E+00 |
| S11 | 1.3403E-02 | -4.8640E-03 | 8.2084E-04 | -1.5042E-04 | 1.0454E-05 |
| S12 | 2.3614E-02 | -2.9310E-03 | -3.1915E-04 | 4.8688E-05 | -2.6242E-06 |
Table 8
Table 9 give distance TTL of the object side S1 to imaging surface S15 in embodiment 3 from the first lens E1 on optical axis,
The maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective focal length f1
To f6.
| TTL(mm) | 10.00 | f2(mm) | -6.01 |
| semi-FOV(°) | 87.50 | f3(mm) | 6.78 |
| Fno | 2.20 | f4(mm) | 5.67 |
| f(mm) | 1.74 | f5(mm) | 42.55 |
| f1(mm) | -3.02 | f6(mm) | 3.85 |
Table 9
Fig. 6 A shows the astigmatism curve of the optical lens group of embodiment 3, indicates meridianal image surface bending and sagittal image surface
Bending.Fig. 6 B shows the F-theta distortion curve of the optical lens group of embodiment 3, indicates to correspond in the case of different perspectives
Distortion sizes values.Fig. 6 C shows the relative illumination curve of the optical lens group of embodiment 3, in the case of indicating different perspectives
Relative illumination.According to Fig. 6 A and Fig. 6 C it is found that optical lens group given by embodiment 3 can be realized good imaging product
Matter.
Embodiment 4
The optical lens group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 C.Fig. 7 is shown according to this
Apply for the structural schematic diagram of the optical lens group of embodiment 4.
As shown in fig. 7, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 positive light coke, 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 convex surface.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 10 show the surface types of each lens of the optical lens group of embodiment 4, radius of curvature, thickness, 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 first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in 6th lens E6 and image side surface are aspherical；The object side and image side of 4th lens E4
Face is spherical 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 |
| S1 | 3.2329E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -2.0456E-02 | -7.5882E-03 | -5.1161E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | 1.5707E-02 | -1.0839E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.1845E-01 | 6.4459E-02 | -6.1987E-02 | 1.6589E-01 | -7.8599E-02 |
| S5 | 3.6091E-02 | 2.8338E-02 | 6.4217E-03 | 1.3753E-02 | 0.0000E+00 |
| S6 | -7.6586E-03 | 2.6648E-02 | -3.0841E-02 | 7.7238E-02 | 0.0000E+00 |
| S9 | 1.1717E-02 | -7.7087E-04 | -1.8038E-04 | 4.5908E-05 | 0.0000E+00 |
| S10 | -4.7201E-02 | 1.7605E-02 | -3.3723E-03 | 3.5410E-04 | 0.0000E+00 |
| S11 | 1.2286E-02 | -4.9959E-03 | 9.5768E-04 | -1.7846E-04 | 1.2908E-05 |
| S12 | 2.2615E-02 | -2.7790E-03 | -2.6212E-04 | 3.1883E-05 | -1.2476E-06 |
Table 11
Table 12 gives distance of the object side S1 to imaging surface S15 on optical axis in embodiment 4 from the first lens E1
TTL, the maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective coke
Away from f1 to f6.
| TTL(mm) | 10.00 | f2(mm) | -6.01 |
| semi-FOV(°) | 87.50 | f3(mm) | 7.84 |
| Fno | 2.20 | f4(mm) | 5.21 |
| f(mm) | 1.74 | f5(mm) | 81.03 |
| f1(mm) | -3.10 | f6(mm) | 3.74 |
Table 12
Fig. 8 A shows the astigmatism curve of the optical lens group of embodiment 4, indicates meridianal image surface bending and sagittal image surface
Bending.Fig. 8 B shows the F-theta distortion curve of the optical lens group of embodiment 4, indicates to correspond in the case of different perspectives
Distortion sizes values.Fig. 8 C shows the relative illumination curve of the optical lens group of embodiment 4, in the case of indicating different perspectives
Relative illumination.According to Fig. 8 A and Fig. 8 C it is found that optical lens group given by embodiment 4 can be realized good imaging product
Matter.
Embodiment 5
The optical lens group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 C.Fig. 9 is shown according to this
Apply for the structural schematic diagram of the optical lens group of embodiment 5.
As shown in figure 9, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 positive light coke, 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 convex surface.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 13 show the surface types of each lens of the optical lens group of embodiment 5, radius of curvature, thickness, 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 first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in 6th lens E6 and image side surface are aspherical；The object side and image side of 4th lens E4
Face is spherical 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 |
| S1 | 3.0058E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.9848E-02 | -6.7002E-03 | -6.3865E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | 2.2758E-02 | -1.0639E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.4480E-01 | 8.7178E-02 | -1.3706E-01 | 2.3930E-01 | -1.3947E-01 |
| S5 | 4.1552E-02 | 1.9681E-02 | 2.5415E-02 | -4.6703E-03 | 0.0000E+00 |
| S6 | 4.4670E-03 | 1.7686E-02 | 1.5929E-02 | 2.2401E-02 | 0.0000E+00 |
| S9 | 9.6578E-03 | -8.3964E-04 | -1.5036E-04 | 8.2333E-05 | 0.0000E+00 |
| S10 | -5.5564E-02 | 1.9603E-02 | -3.9225E-03 | 4.6106E-04 | 0.0000E+00 |
| S11 | 1.0562E-02 | -4.3629E-03 | 6.8472E-04 | -1.2333E-04 | 9.1236E-06 |
| S12 | 2.4767E-02 | -3.4400E-03 | -2.4825E-04 | 3.9043E-05 | -1.7411E-06 |
Table 14
Table 15 gives distance of the object side S1 to imaging surface S15 on optical axis in embodiment 5 from the first lens E1
TTL, the maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective coke
Away from f1 to f6.
Table 15
Figure 10 A shows the astigmatism curve of the optical lens group of embodiment 5, indicates meridianal image surface bending and sagittal image surface
Bending.Figure 10 B shows the F-theta distortion curve of the optical lens group of embodiment 5, indicates to correspond in the case of different perspectives
Distortion sizes values.Figure 10 C shows the relative illumination curve of the optical lens group of embodiment 5, indicates different perspectives situation
Under relative illumination.According to Figure 10 A and Figure 10 C it is found that optical lens group given by embodiment 5 can be realized good imaging
Quality.
Embodiment 6
The optical lens group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 C.Figure 11 shows basis
The structural schematic diagram of the optical lens group of the embodiment of the present application 6.
As shown in figure 11, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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 positive light coke, 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.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 16 show the surface types of each lens of the optical lens group of embodiment 6, radius of curvature, thickness, 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 first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in 6th lens E6 and image side surface are aspherical；The object side and image side of 4th lens E4
Face is spherical 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.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 3.0193E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -2.0477E-02 | -6.8769E-03 | -6.6589E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | 1.7812E-02 | -9.2050E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.4393E-01 | 7.5592E-02 | -1.0058E-01 | 1.9011E-01 | -1.1406E-01 |
| S5 | 4.1742E-02 | 2.5511E-02 | 1.2245E-02 | 5.9603E-03 | 0.0000E+00 |
| S6 | 8.8083E-03 | 1.9841E-02 | 1.6510E-02 | 2.9462E-02 | 0.0000E+00 |
| S9 | 1.1801E-02 | -1.0825E-03 | -1.1068E-04 | 6.8288E-05 | 0.0000E+00 |
| S10 | -5.4839E-02 | 1.9498E-02 | -3.7670E-03 | 4.0594E-04 | 0.0000E+00 |
| S11 | 1.1704E-02 | -4.5072E-03 | 6.5699E-04 | -1.2074E-04 | 9.0079E-06 |
| S12 | 2.6426E-02 | -4.3181E-03 | -1.2982E-04 | 3.3404E-05 | -1.7876E-06 |
Table 17
Table 18 gives distance of the object side S1 to imaging surface S15 on optical axis in embodiment 6 from the first lens E1
TTL, the maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective coke
Away from f1 to f6.
| TTL(mm) | 10.00 | f2(mm) | -6.01 |
| semi-FOV(°) | 87.50 | f3(mm) | 7.11 |
| Fno | 2.20 | f4(mm) | 5.45 |
| f(mm) | 1.74 | f5(mm) | 62.47 |
| f1(mm) | -3.16 | f6(mm) | 3.77 |
Table 18
Figure 12 A shows the astigmatism curve of the optical lens group of embodiment 6, indicates meridianal image surface bending and sagittal image surface
Bending.Figure 12 B shows the F-theta distortion curve of the optical lens group of embodiment 6, indicates to correspond in the case of different perspectives
Distortion sizes values.Figure 12 C shows the relative illumination curve of the optical lens group of embodiment 6, indicates different perspectives situation
Under relative illumination.According to Figure 12 A and Figure 12 C it is found that optical lens group given by embodiment 6 can be realized good imaging
Quality.
Embodiment 7
The optical lens group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 C.Figure 13 shows basis
The structural schematic diagram of the optical lens group of the embodiment of the present application 7.
As shown in figure 13, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 19 show the surface types of each lens of the optical lens group of embodiment 7, radius of curvature, thickness, 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 first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in 6th lens E6 and image side surface are aspherical；The object side and image side of 4th lens E4
Face is spherical 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.
Table 20
Table 21 gives distance of the object side S1 to imaging surface S15 on optical axis in embodiment 7 from the first lens E1
TTL, the maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective coke
Away from f1 to f6.
| TTL(mm) | 10.00 | f2(mm) | -6.70 |
| semi-FOV(°) | 87.50 | f3(mm) | 7.27 |
| Fno | 2.20 | f4(mm) | 5.33 |
| f(mm) | 1.74 | f5(mm) | -39.68 |
| f1(mm) | -2.94 | f6(mm) | 3.36 |
Table 21
Figure 14 A shows the astigmatism curve of the optical lens group of embodiment 7, indicates meridianal image surface bending and sagittal image surface
Bending.Figure 14 B shows the F-theta distortion curve of the optical lens group of embodiment 7, indicates to correspond in the case of different perspectives
Distortion sizes values.Figure 14 C shows the relative illumination curve of the optical lens group of embodiment 7, indicates different perspectives situation
Under relative illumination.According to Figure 14 A and Figure 14 C it is found that optical lens group given by embodiment 7 can be realized good imaging
Quality.
Embodiment 8
The optical lens group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 C.Figure 15 shows basis
The structural schematic diagram of the optical lens group of the embodiment of the present application 8.
As shown in figure 15, according to the optical lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, the second lens E2, the third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens
E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, 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
Concave surface, image side surface S6 are convex 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 positive light coke, 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.First lens E1, the second lens E2, effective half mouthful of the third lens E3
Diameter successively successively decreases, and the 4th lens E4, the 5th lens E5, effective half bore of the 6th lens E6 are incremented by successively.Optical filter E7 tool
There are object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged in imaging surface S15
On.
Optical lens group in the present embodiment is near infrared band of the about 800nm to about 1000nm using wave band.
Table 22 show the surface types of each lens of the optical lens group of embodiment 8, radius of curvature, thickness, 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 first lens E1, the second lens E2, the third lens E3, the 5th lens E5 and
The object side of any one lens in 6th lens E6 and image side surface are aspherical；The object side and image side of 4th lens E4
Face is spherical 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.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 2.7678E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -2.8818E-02 | 7.7259E-03 | -5.5857E-03 | 0.0000E+00 | 0.0000E+00 |
| S3 | -5.5754E-03 | -1.4354E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 4.5268E-02 | 4.0845E-03 | 4.8495E-02 | -3.8684E-02 | 5.3196E-02 |
| S5 | 2.2645E-02 | 5.0089E-02 | -4.5665E-02 | 7.8816E-02 | 0.0000E+00 |
| S6 | 2.7496E-03 | 2.3633E-02 | -5.5268E-03 | 6.2244E-02 | 0.0000E+00 |
| S9 | 1.9705E-02 | -5.1898E-03 | 5.3303E-04 | -5.6134E-05 | 0.0000E+00 |
| S10 | -3.3776E-02 | 1.5117E-02 | -3.5573E-03 | 3.3604E-04 | 0.0000E+00 |
| S11 | 6.8992E-03 | -3.6702E-03 | 5.7531E-04 | -1.0616E-04 | 8.4764E-06 |
| S12 | 1.0047E-02 | -2.2198E-03 | 5.1891E-05 | -2.0790E-05 | 1.3207E-06 |
Table 23
Table 24 gives distance of the object side S1 to imaging surface S15 on optical axis in embodiment 8 from the first lens E1
TTL, the maximum angle of half field-of view Semi-FOV of optical lens group, F-number Fno, total effective focal length f and each lens effective coke
Away from f1 to f6.
| TTL(mm) | 9.80 | f2(mm) | -12.37 |
| semi-FOV(°) | 87.50 | f3(mm) | 8.29 |
| Fno | 2.20 | f4(mm) | 5.52 |
| f(mm) | 1.74 | f5(mm) | 21.27 |
| f1(mm) | -2.72 | f6(mm) | 4.07 |
Table 24
Figure 16 A shows the astigmatism curve of the optical lens group of embodiment 8, indicates meridianal image surface bending and sagittal image surface
Bending.Figure 16 B shows the F-theta distortion curve of the optical lens group of embodiment 8, indicates to correspond in the case of different perspectives
Distortion sizes values.Figure 16 C shows the relative illumination curve of the optical lens group of embodiment 8, indicates different perspectives situation
Under relative illumination.According to Figure 16 A and Figure 16 C it is found that optical lens group given by embodiment 8 can be realized good imaging
Quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 25 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| semi-FOV/CRAmax | 5.84 | 6.01 | 5.51 | 5.45 | 5.62 | 5.64 | 5.93 | 5.72 |
| f4/f | -1.60 | -2.09 | -1.88 | -1.68 | -1.78 | -1.73 | -1.81 | -2.03 |
| N1/N4 | 0.84 | 0.84 | 0.84 | 0.84 | 0.84 | 0.84 | 0.84 | 0.84 |
| R8/R10 | -0.78 | -0.82 | -0.79 | -0.80 | -0.82 | -0.79 | -0.79 | -1.02 |
| R11/f | 1.18 | 1.22 | 1.19 | 1.21 | 1.15 | 1.11 | 1.02 | 1.15 |
| CT4/∑CT | 0.34 | 0.32 | 0.33 | 0.35 | 0.33 | 0.34 | 0.34 | 0.32 |
| T45/T56 | 0.28 | 0.04 | 0.19 | 0.05 | 0.21 | 0.24 | 0.66 | 0.47 |
| DT11/DT62 | 1.33 | 1.42 | 1.39 | 1.40 | 1.38 | 1.37 | 1.34 | 1.31 |
| DT62/ImgH | 0.92 | 0.92 | 0.88 | 0.84 | 0.91 | 0.91 | 0.92 | 0.95 |
| DT31/DT42 | 0.61 | 0.58 | 0.61 | 0.62 | 0.62 | 0.62 | 0.62 | 0.65 |
| SAG61/CT6 | 0.77 | 0.54 | 0.59 | 0.55 | 0.56 | 0.62 | 0.64 | 0.51 |
| ET4/(ET5+ET6) | 1.90 | 1.76 | 1.90 | 2.02 | 1.91 | 2.05 | 1.96 | 1.68 |
Table 25
The application also provides a kind of photographic device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Photographic device can be the independent picture pick-up device of such as digital camera, be also possible to
The photographing module being integrated on the mobile electronic devices such as mobile phone, tablet computer.The photographic device is equipped with described above
Optical lens 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 (28)
1. optical lens group, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly
Mirror, the 5th lens and the 6th lens, which is characterized in that
First lens have negative power；
Second lens have negative power；
The third lens have positive light coke；
4th lens have positive light coke；
5th lens have focal power, and object side is convex surface；
6th lens have positive light coke；And
The maximum angle of half field-of view semi-FOV of the optical lens group and the chief ray incident electronics of the optical lens group are photosensitive
The maximum incident angle degree CRAmax of component meets 5 < semi-FOV/CRAmax < 10.
2. optical lens group according to claim 1, which is characterized in that the refractive index N1 of first lens and described the
The refractive index N4 of four lens meets N1/N4 < 0.9.
3. optical lens group according to claim 2, which is characterized in that the effective focal length f4 of the 4th lens with it is described
The effective focal length f1 of first lens meets -2.5 < f4/f1 < -1.
4. optical lens group according to claim 1, which is characterized in that the radius of curvature of the image side surface of the 4th lens
The radius of curvature R 10 of the image side surface of R8 and the 5th lens meets -1.2 < R8/R10 < -0.7.
5. optical lens group according to claim 1, which is characterized in that the radius of curvature of the object side of the 6th lens
R11 and total effective focal length f of the optical lens group meet 1 < R11/f < 1.5.
6. optical lens group according to claim 1, which is characterized in that the 4th lens are in the center on the optical axis
The summation ∑ CT of thickness CT4 and first lens to the 6th lens respectively at the center thickness on the optical axis meets
0.3 < CT4/ ∑ CT < 0.6.
7. optical lens group according to claim 1, which is characterized in that the axis of the 4th lens and the 5th lens
Spacing distance T56 meets 0 < T45/T56 < on the axis of upper spacing distance T45 and the 5th lens and the 6th lens
0.7。
8. optical lens group according to claim 1, which is characterized in that effective half mouthful of the object side of first lens
Effective half bore DT62 of the image side surface of diameter DT11 and the 6th lens meets 1 < DT11/DT62 < 1.5.
9. optical lens group according to claim 1, which is characterized in that effective half mouthful of the image side surface of the 6th lens
The half ImgH of the effective pixel area diagonal line length of diameter DT62 and the electronics photosensory assembly of the optical lens group meets 0.5 <
DT62/ImgH < 1.
10. optical lens group according to claim 1, which is characterized in that effectively the half of the object side of the third lens
Effective half bore DT42 of the image side surface of bore DT31 and the 4th lens meets 0.4 < DT31/DT42 < 0.8.
11. optical lens group according to claim 1, which is characterized in that the object side of the 6th lens and the light
Distance SAG61 and the described 6th is saturating on the intersection point of axis to the axis on maximum effective half bore vertex of the object side of the 6th lens
Mirror meets 0.4 < SAG61/CT6 < 0.8 in the center thickness CT6 on the optical axis.
12. optical lens group according to claim 1, which is characterized in that the edge thickness ET4 of the 4th lens, institute
The edge thickness ET6 of the edge thickness ET5 and the 6th lens that state the 5th lens meet 1.5 < ET4/ (ET5+ET6) <
2.1。
13. optical lens group according to any one of claim 1 to 12, which is characterized in that first lens, described
Second lens, the third lens effective half bore successively successively decrease, the 4th lens, the 5th lens, the described 6th
Effective half bore of lens is incremented by successively.
14. optical lens group according to any one of claim 1 to 12, which is characterized in that the optical lens group
It the use of wavelength band is 800nm to 1000nm.
It by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th along optical axis 15. optical lens group
Lens, the 5th lens and the 6th lens, which is characterized in that
First lens have negative power；
Second lens have focal power；
The third lens have focal power；
4th lens have positive light coke；
5th lens have focal power, and object side is convex surface；
6th lens have positive light coke；
The effective focal length f4 of 4th lens and the effective focal length f1 of first lens meet -2.5 < f4/f1 < -1.
16. optical lens group according to claim 15, which is characterized in that the refractive index N1 of first lens with it is described
The refractive index N4 of 4th lens meets N1/N4 < 0.9.
17. optical lens group according to claim 15, which is characterized in that the curvature of the image side surface of the 4th lens half
The radius of curvature R 10 of the image side surface of diameter R8 and the 5th lens meets -1.2 < R8/R10 < -0.7.
18. optical lens group according to claim 15, which is characterized in that the curvature of the object side of the 6th lens half
Diameter R11 and total effective focal length f of the optical lens group meet 1 < R11/f < 1.5.
19. optical lens group according to claim 15, which is characterized in that the 4th lens are on the optical axis
The summation ∑ CT of heart thickness CT4 and first lens to the 6th lens respectively at the center thickness on the optical axis meets
0.3 < CT4/ ∑ CT < 0.6.
20. optical lens group according to claim 15, which is characterized in that the 4th lens and the 5th lens
Spacing distance T56 meets 0 < T45/T56 < on the axis of spacing distance T45 and the 5th lens and the 6th lens on axis
0.7。
21. optical lens group according to claim 15, which is characterized in that effectively the half of the object side of first lens
Effective half bore DT62 of the image side surface of bore DT11 and the 6th lens meets 1 < DT11/DT62 < 1.5.
22. optical lens group according to claim 15, which is characterized in that effectively the half of the image side surface of the 6th lens
The half ImgH of the effective pixel area diagonal line length of bore DT62 and the electronics photosensory assembly of the optical lens group meets 0.5
< DT62/ImgH < 1.
23. optical lens group according to claim 15, which is characterized in that effectively the half of the object side of the third lens
Effective half bore DT42 of the image side surface of bore DT31 and the 4th lens meets 0.4 < DT31/DT42 < 0.8.
24. optical lens group according to claim 15, which is characterized in that the object side of the 6th lens and the light
Distance SAG61 and the described 6th is saturating on the intersection point of axis to the axis on maximum effective half bore vertex of the object side of the 6th lens
Mirror meets 0.4 < SAG61/CT6 < 0.8 in the center thickness CT6 on the optical axis.
25. optical lens group according to claim 15, which is characterized in that the edge thickness ET4 of the 4th lens, institute
The edge thickness ET6 of the edge thickness ET5 and the 6th lens that state the 5th lens meet 1.5 < ET4/ (ET5+ET6) <
2.1。
26. optical lens group described in any one of 5 to 25 according to claim 1, which is characterized in that first lens, institute
State the second lens, effective half bore of the third lens successively successively decreases, the 4th lens, the 5th lens, described
Effective half bore of six lens is incremented by successively.
27. optical lens group described in any one of 5 to 25 according to claim 1, which is characterized in that the optical lens group
The maximum incident angle degree of maximum angle of half field-of view semi-FOV and the chief ray incident electronics photosensory assembly of the optical lens group
CRAmax meets 5 < semi-FOV/CRAmax < 10.
28. optical lens group described in any one of 5 to 25 according to claim 1, which is characterized in that the optical lens group
It the use of wavelength band is 800nm to 1000nm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212722A (en) * | 2018-11-27 | 2019-01-15 | 浙江舜宇光学有限公司 | Optical lens group |
| CN114019659A (en) * | 2021-11-30 | 2022-02-08 | 江西晶超光学有限公司 | Optical system, image capturing module and electronic equipment |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212722A (en) * | 2018-11-27 | 2019-01-15 | 浙江舜宇光学有限公司 | Optical lens group |
| CN109212722B (en) * | 2018-11-27 | 2024-04-23 | 浙江舜宇光学有限公司 | Optical lens group |
| CN114019659A (en) * | 2021-11-30 | 2022-02-08 | 江西晶超光学有限公司 | Optical system, image capturing module and electronic equipment |
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