CN107272165B - Imaging lens system group - Google Patents
Imaging lens system group Download PDFInfo
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- CN107272165B CN107272165B CN201710695396.XA CN201710695396A CN107272165B CN 107272165 B CN107272165 B CN 107272165B CN 201710695396 A CN201710695396 A CN 201710695396A CN 107272165 B CN107272165 B CN 107272165B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
This application discloses a kind of imaging lens system group, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side along optical axis.First lens have negative power, and image side surface is concave surface；Second lens have positive light coke, and image side surface is convex surface；The third lens, the 4th lens and the 5th lens all have positive light coke or negative power；And total effective focal length f of imaging lens system group and the Entry pupil diameters EPD of imaging lens system group meet 0.8 < f/EPD < 1.6.
Description
Technical field
This application involves a kind of imaging lens system groups, more specifically, having that this application involves a kind of including five lens is big
Visual field, the imaging lens system group of large aperture.
Background technique
Currently, three dimensional depth measurement generally there are three types of technical solution, be respectively it is double take the photograph, structure light and TOF, wherein TOF
It is the abbreviation of flight time (Time of Flight) technology, that is, calculates the time of light flight.TOF technology has response because of it
The advantages that speed is fast, depth information precision is high, structure size is small and is not susceptible to ambient light interference, and be widely used.
With the development of science and technology, the forward positions such as VR/AR (virtual reality/augmented reality), robot, security protection, automatic Pilot are led
Domain development is swift and violent.In these areas, it usually needs obtain the depth information of surrounding subject by pick-up lens, wrap
It includes three-dimensional position and dimension information, thus higher requirement is proposed to the matching used pick-up lens of institute, need using can
Carry out the three dimensional depth camera of three dimensional depth measurement.
Three dimensional depth camera is generally wide-angle lens, has the characteristics such as focal length is short, the depth of field is long.Relatively short focal length helps
In the lightening of realization imaging terminal.The relatively long depth of field helps to ensure that the object in the front and back certain depth of shot subject
The blur-free imaging of body.In addition, three dimensional depth camera also has big field angle, the characteristic of large aperture.Under equal conditions, visual field
Angle is bigger, and the information content that can be obtained is bigger；Aperture is bigger, can effectively improve image planes energy density, so that it is deep to improve measurement
The precision of degree.
Currently, general wide-angle lens overall length is longer, image quality is general, can not better meet three dimensional depth camera
Requirement.Accordingly, it is desirable to provide a kind of large aperture, big field angle, the imaging lens system group of high image quality.
Summary of the invention
This application provides the camera shooting that can at least solve or partially solve at least one above-mentioned disadvantage in the prior art is saturating
Microscope group, for example, big visual field, the imaging lens system group of large aperture.
On the one hand, this application provides a kind of imaging lens system group, the imaging lens system 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 and the 5th lens.First lens can have negative power,
Image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens and
Five lens can have positive light coke or negative power；And total effective focal length f of imaging lens system group and entering for imaging lens system group
Pupil diameter EPD can meet 0.8 < f/EPD < 1.6.
In one embodiment, total effective focal length f of the effective focal length f1 of the first lens and imaging lens system group can meet-
2.1 < f1/f < -1.5.
In one embodiment, the effective focal length f2 of the second lens and total effective focal length f of imaging lens system group can meet
1.4 < f2/f < 3.
In one embodiment, the combination focal power of the second lens, the third lens, the 4th lens and the 5th lens is positive
Total effective focal length f of focal power, a combination thereof focal length f2345 and imaging lens system group can meet 0.8 < f2345/f < 1.3.
In one embodiment, the Entry pupil diameters of the effective half bore DT11 and imaging lens system group of the first lens object side
EPD can meet 1 < DT11/EPD < 1.6.
In one embodiment, the effective half bore DT11's with the 5th lens image side surface of the first lens object side is effective
Half bore DT52 can meet 0.7 < DT11/DT52 < 1.3.
In one embodiment, the second lens are thick in the edge of center thickness CT2 and second lens on optical axis
Degree ET2 can meet 1.8 < CT2/ET2 < 3.5.
In one embodiment, the maximum angle of half field-of view HFOV of imaging lens system group can meet tan (HFOV/2) > 0.5.
In one embodiment, the first lens spacing distance on axis between two lens of arbitrary neighborhood into the 5th lens
Distance TTL can meet 0.1 < ∑ T/TTL on the object side of summation ∑ T and the first lens to the axis of the imaging surface of imaging lens system group
≤0.3。
In one embodiment, imaging lens system group may also include the light being set between the first lens and the second lens
Door screen.
In one embodiment, on diaphragm to the axis of the imaging surface of imaging lens system group distance and the first lens object side
Distance TTL can meet 0.7 < SL/TTL < 1 on to the axis of the imaging surface of imaging lens system group.
On the other hand, present invention also provides a kind of imaging lens system group, which has total effective focal length f and edge
Optical axis sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side.First thoroughly
Mirror can have negative power；At least one of second lens, the third lens, the 4th lens and the 5th lens can have positive light focus
Degree.Wherein, the effective focal length f1 of the first lens and total effective focal length f of imaging lens system group can meet -2.1 < -1.5 < f1/f,
And wherein, the combination focal power of the second lens, the third lens, the 4th lens and the 5th lens can be positive light coke.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, at least one of object side and image side surface can be concave surface；Second lens can have positive light coke, object side and image side
At least one of face can be convex surface；The third lens, the 4th lens and the 5th lens can have positive light coke or negative power；
And first the effective half bore DT11 and the Entry pupil diameters EPD of imaging lens system group of lens object side can meet 1 < DT11/EPD
< 1.6.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And the maximum angle of half field-of view HFOV of imaging lens system group can meet
Tan (HFOV/2) > 0.5.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And second lens, the third lens, the 4th lens and
The combined focal length f2345 of 5th lens and total effective focal length f of imaging lens system group can meet 0.8 < f2345/f < 1.3.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And second lens effective focal length f2 and the imaging lens system group
Total effective focal length f can meet 1.4 < f2/f < 3.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And first lens into the 5th lens two lens of arbitrary neighborhood it
Between distance TTL can on the summation ∑ T of spacing distance and the object side to the axis of the imaging surface of imaging lens system group of the first lens on axis
Meet 0.1 < ∑ T/TTL≤0.3.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And second lens on the optical axis center thickness CT2 with
The edge thickness ET2 of second lens meets 1.8 < CT2/ET2 < 3.5.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And first lens object side effective half bore DT11 and the 5th
Effective half bore DT52 of lens image side surface can meet 0.7 < DT11/DT52 < 1.3.
On the other hand, present invention also provides a kind of imaging lens system groups, and the imaging lens system group is along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.First lens can have negative light focus
Degree, image side surface can be concave surface；Second lens can have positive light coke, and image side surface can be convex surface；The third lens, the 4th lens
Can have positive light coke or negative power with the 5th lens；And imaging lens system group further includes being set to the first lens and second
Diaphragm between lens, the object side of distance and the first lens is saturating to imaging on the axis of the imaging surface of the diaphragm to imaging lens system group
Distance TTL can meet 0.7 < SL/TTL < 1 on the axis of the imaging surface of microscope group.
Big field angle, big can be better achieved in imaging lens system group provided herein while guaranteeing image quality
The characteristics such as aperture.
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 imaging lens system 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 imaging lens system group of embodiment 1, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the imaging lens system 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 imaging lens system group of embodiment 2, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the imaging lens system 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 imaging lens system group of embodiment 3, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the imaging lens system 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 imaging lens system group of embodiment 4, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the imaging lens system group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrates chromatic curve on the axis of the imaging lens system group of embodiment 5, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the imaging lens system group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrates chromatic curve on the axis of the imaging lens system group of embodiment 6, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the imaging lens system group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrates chromatic curve on the axis of the imaging lens system group of embodiment 7, astigmatism curve, 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.Surface in each lens near object is known as object side,
Surface in each lens near imaging surface is known as image side 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.
Imaging lens system group according to the application illustrative embodiments includes such as five lens with focal power, that is,
First lens, the second lens, the third lens, the 4th lens and the 5th lens.This five lens are along optical axis from object side to image side
Sequential.
It can also further comprise be set to imaging surface photosensitive according to the imaging lens system group of the application illustrative embodiments
Element.Optionally, the photosensitive element for being set to imaging surface can be photosensitive coupling element (CCD) or Complimentary Metal-Oxide is partly led
Volume elements part (CMOS).
First lens can have negative power, and image side surface can be concave surface；Second lens can have positive light coke, image side
Face can be convex surface；The third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th
Lens have positive light coke or negative power.
Optionally, the third lens can be meniscus lens, and the radius of curvature R 5 of object side can be with the radius of curvature of image side surface
R6 jack per line.When R5 and R6 are positive value, the object side of the third lens is convex surface, and image side surface is concave surface, and the third lens are to be convex to
The meniscus lens of object side；When R5 and R6 are negative value, the object side of the third lens is concave surface, and image side surface is convex surface, and third is saturating
Mirror is the meniscus lens for being convex to image side.
Optionally, the 5th lens can have positive light coke, and object side can be convex surface at paraxial place, and image side surface is at paraxial place
It can be concave surface.
- 2.1 < f1/f <-can be met between the effective focal length f1 of first lens and total effective focal length f of imaging lens system group
1.5, more specifically, f1 and f can further meet -2.07≤f1/f≤- 1.56.The first power of lens of reasonable distribution, has
Conducive to the bore of reduction eyeglass on the basis of guaranteeing processing technology, while the aberration correction of wide-angle lens is also helped, improved
Image quality.
1.4 < f2/f < 3 can be met between the effective focal length f2 of second lens and total effective focal length f of imaging lens system group,
More specifically, f2 and f can further meet 1.48≤f2/f≤2.82.Second lens have biggish positive light coke, may make
It is conducive to correct aberration on axis with biggish relative aperture.
Second lens, the third lens, the 4th lens and the combined focal length f2345 of the 5th lens and always having for imaging lens system group
0.8 < f2345/f < 1.3 can be met between effect focal length f, more specifically, f2345 and f can further meet 0.97≤f2345/f
≤1.17.First power of lens be negative power, the second lens, the third lens, the 4th lens and the 5th lens total light
Focal power is positive light coke.Off-axis ray is saturating by second with the ray tilt obviously to become smaller after the diverging of the first lens
Mirror makes the second lens, the third lens, the 4th lens and the 5th lens undertake lesser visual field, to be conducive to the 5th lens
The off-axis aberration of subsequent constituent element corrects, and correspondingly, the first lens undertake biggish visual field.
0.8 < f/EPD can be met between total effective focal length f of imaging lens system group and the Entry pupil diameters EPD of imaging lens system group
< 1.6, for example, f and EPD can meet 0.85≤f/EPD≤1.45, in another example, f and EPD can meet 0.90≤f/EPD≤
1.30, more specifically, f and EPD can further meet 1.00≤f/EPD≤1.20.Meet 0.8 < f/EPD < 1.6 of conditional,
The energy density that imaging surface can be effectively improved is conducive to improve image space sensor output signal-noise ratio, that is, is conducive to improve
The precision to fathom.
1 can be met between effective half bore DT11 of the object side of first lens and the Entry pupil diameters EPD of imaging lens system group
< DT11/EPD < 1.6, more specifically, DT11 and EPD can further meet 1.03≤DT11/EPD≤1.51.Meet conditional
1 < DT11/EPD < 1.6, the effective aperture of the first lens object side and the Entry pupil diameters size of imaging lens system group are close, so that
The aperture of lens of wide-angle lens is small, and processing cost is low and camera lens is small and exquisite.
Between effective half bore DT52 of the image side surface of effective half bore DT11 and the 5th lens of first lens object side
0.7 < DT11/DT52 < 1.3 can be met, more specifically, DT11 and DT52 can further meet 0.81≤DT11/DT52≤
1.20.Reasonable distribution DT11 and DT52 are conducive to reduce eyeglass bore, realize camera lens miniaturization, improve assembly technology and reduce
Cost.
Second lens can meet 1.8 < between the edge thickness ET2 of center thickness CT2 and the second lens on optical axis
CT2/ET2 < 3.5, more specifically, CT2 and ET2 can further meet 1.90≤CT2/ET2≤3.03.Meet 1.8 < of conditional
CT2/ET2 < 3.5, it is ensured that the good processing technology of the second lens can effectively improve the machining accuracy of the second lens, meet
Higher design tolerance requirement, is conducive to the image quality for improving lens group.
In each lens with focal power between two lens of arbitrary neighborhood on axis spacing distance summation ∑ T and imaging lens system
Group optics total length TTL (that is, from distance on the center to the axis of the imaging surface of imaging lens system group of the first lens object side) it
Between can meet 0.1 < ∑ T/TTL≤0.3, more specifically, ∑ T and TTL can further meet 0.16≤∑ T/TTL≤0.30.?
In the imaging lens system group of lens including five with focal power, ∑ T=T12+T23+T34+T45.Wherein, T12 is first saturating
Spacing distance on axis between mirror and the second lens, T23 spacing distance on the axis between the second lens and the third lens, T34
Spacing distance on axis between the third lens and the 4th lens, T45 are spaced on the axis between the 4th lens and the 5th lens
Distance.Reasonable disposition ∑ T and TTL are conducive to the entire length for shortening imaging lens system group；Meanwhile rationally increasing between each lens
Axis on spacing distance, advantageously reduce the tolerance sensitivity of system, promote the quality consistency of camera lens batch production.
An at least diaphragm can be also set as needed in imaging lens system group, to promote the image quality of imaging lens system group.Light
0.7 < can be met between distance SL and the optics total length TTL of imaging lens system group on door screen to the axis of the imaging surface of imaging lens system group
SL/TTL < 1, more specifically, SL and TTL can further meet 0.76≤SL/TTL≤0.85.Optionally, diaphragm may be provided at
Between first lens and the second lens.Diaphragm is disposed adjacent at the position of the first lens, is conducive to the mouth for reducing the first lens
Diameter, and then reduce the cost of camera lens.In addition, imaging lens system group can be effectively realized when the first lens have more small-bore
An assembly (along the first lens to the direction of the 5th lens) from front to back, can be improved assembly technology.
The maximum angle of half field-of view HFOV of imaging lens system group can meet tan (HFOV/2) > 0.5, more specifically, HFOV is into one
Step can meet 0.54≤tan (HFOV/2)≤0.78.By the restriction of reasonable focal power distribution and field angle, so that system exists
Under the premise of with good image quality, biggish visual field is obtained.
Optionally, above-mentioned optical imaging lens may also include optical filter for correcting color error ratio and/or for protecting
The protection glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above five can be used according to the optical imaging lens 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, the susceptibility of camera lens can be effectively reduced and improve the processability of camera lens, so that imaging lens system group is more advantageous to production and processing,
And there can be the beneficial effect such as large aperture, big field angle, high image quality.
In presently filed embodiment, aspherical mirror is can be used in the object side of each lens and image side surface.It is aspherical
The characteristics of lens is: from lens centre to lens perimeter, curvature is consecutive variations.Have with from lens centre to lens perimeter
The spherical lens of constant curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, has to improve and distorts aberration and change
The advantages of kind astigmatic image error.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, thus
Improve image quality.
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 imaging lens system group can be changed, to obtain each result and advantage described in this specification.For example,
Although being described by taking five lens as an example in embodiments, which is not limited to include five lens.
If desired, the imaging lens system group may also include the lens of other quantity.
The specific embodiment for being applicable to the imaging lens system group of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D description according to the imaging lens system group of the embodiment of the present application 1.Fig. 1 is shown according to this Shen
Please embodiment 1 imaging lens system group structural schematic diagram.
As shown in Figure 1, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is concave surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is aspherical.
Second lens L2 has a positive light coke, and object side S3 is concave surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a positive light coke, and object side S5 is convex surface, and image side surface S6 is concave surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 1 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 1
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
In embodiment 1, non-spherical lens can be used in each lens, and each aspherical face type x is limited by following formula:
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-S104、A6、A8、A10、A12、A14And A16。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.1115E-01 | -7.9213E-02 | 4.7038E-02 | -2.0501E-02 | 5.6172E-03 | -8.4995E-04 | 5.3751E-05 |
| S2 | 1.8758E-01 | -1.2520E-01 | 1.8374E-01 | -1.8125E-01 | 1.1239E-01 | -3.5806E-02 | 4.5041E-03 |
| S3 | 3.5824E-03 | -2.8801E-02 | 3.9615E-02 | -2.9571E-02 | 8.1222E-03 | 2.4475E-04 | -3.1358E-04 |
| S4 | -9.9343E-03 | 4.4336E-04 | -2.8594E-04 | -1.3540E-04 | -6.4042E-04 | 2.8798E-04 | -4.3410E-05 |
| S5 | -1.1646E-02 | 6.5259E-03 | -1.3055E-03 | -5.0274E-05 | -7.0651E-06 | 9.1261E-06 | -7.9786E-07 |
| S6 | -5.1780E-03 | -1.7707E-02 | 1.4283E-02 | -5.1595E-03 | 9.2800E-04 | -8.4005E-05 | 3.1848E-06 |
| S7 | 5.0212E-02 | -3.8959E-02 | 1.7737E-02 | -5.5525E-03 | 1.0104E-03 | -8.5400E-05 | 1.8279E-06 |
| S8 | 9.8791E-02 | -1.0631E-01 | 6.3313E-02 | -2.3878E-02 | 5.4211E-03 | -6.6174E-04 | 3.3489E-05 |
| S9 | 6.2817E-02 | -1.2471E-01 | 6.6269E-02 | -3.1648E-02 | 1.0151E-02 | -1.6932E-03 | 1.1040E-04 |
| S10 | 6.5161E-02 | -8.1316E-02 | 2.2261E-02 | -2.6454E-03 | 3.7063E-05 | 2.0784E-05 | -1.6061E-06 |
Table 2
The following table 3 provides effective focal length f1 to f5, the optics of the total effective focal length f, each lens of imaging lens system group in embodiment 1
Total length TTL (that is, from distance on the center to the axis of imaging surface S13 of the object side S1 of the first lens L1) and maximum half field-of-view
Angle HFOV.
Table 3
In the present embodiment, meet between the effective focal length f1 of the first lens L1 and total effective focal length f of imaging lens system group
F1/f=-1.57；Meet f2/f=between the effective focal length f2 of second lens L2 and total effective focal length f of imaging lens system group
1.83；The combined focal length f2345 and imaging lens system group of second lens L2, the third lens L3, the 4th lens L4 and the 5th lens L5
Total effective focal length f between meet f2345/f=0.97；The entrance pupil of total the effective focal length f and imaging lens system group of imaging lens system group
Meet f/EPD=1.20 between diameter EPD；Effective half bore DT11 of the object side S1 of first lens L1 and imaging lens system group
Meet DT11/EPD=1.07 between Entry pupil diameters EPD；Effective half bore DT11 and the 5th of first lens L1 object side S1 is saturating
Meet DT11/DT52=0.81 between effective half bore DT52 of the image side surface S10 of mirror L5；Second lens L2 is on optical axis
Meet CT2/ET2=2.99 between heart thickness CT2 and the edge thickness ET2 of the second lens L2；First lens L1 to the 5th lens
Meet between the summation ∑ T of spacing distance and the optics total length TTL of imaging lens system group on axis between two lens of L5 arbitrary neighborhood
∑ T/TTL=0.29；Meet between distance SL and the optics total length TTL of imaging lens system group on diaphragm STO to the axis of imaging surface
SL/TTL=0.84；The maximum angle of half field-of view HFOV of imaging lens system group meets tan (HFOV/2)=0.57.
Fig. 2A shows chromatic curve on the axis of the imaging lens system group of embodiment 1, indicate the light of different wave length via
Converging focal point after lens group deviates.Fig. 2 B shows the astigmatism curve of the imaging lens system group of embodiment 1, indicates meridianal image surface
Bending and sagittal image surface bending.Fig. 2 C shows the distortion curve of the imaging lens system group of embodiment 1, indicates different perspectives situation
Under distortion sizes values.Fig. 2 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 1, indicates light via lens
The deviation of different image heights after group on imaging surface.A to Fig. 2 D is it is found that imaging lens system group given by embodiment 1 according to fig. 2
It can be realized good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the imaging lens system 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 imaging lens system group.
As shown in figure 3, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is concave surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is aspherical.
Second lens L2 has a positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a positive light coke, and object side S5 is concave surface, and image side surface S6 is convex surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a negative power, and object side S7 is concave surface, and image side surface S8 is concave surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 4 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 2
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).Table 5 show can be used for it is each aspherical in embodiment 2
The high-order coefficient of mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 6 is shown
Total effective focal length f of imaging lens system group in embodiment 2, the effective focal length f1 to f5 of each lens, optics total length TTL and most
Big angle of half field-of view HFOV.
Table 4
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 9.9087E-02 | -7.5992E-02 | 4.7000E-02 | -2.0533E-02 | 5.6172E-03 | -8.4995E-04 | 5.3751E-05 |
| S2 | 1.6465E-01 | -1.2285E-01 | 1.7774E-01 | -1.7747E-01 | 1.1239E-01 | -3.5806E-02 | 4.5041E-03 |
| S3 | -6.9844E-03 | -2.7964E-02 | 3.9514E-02 | -2.9646E-02 | 8.1222E-03 | 2.4475E-04 | -3.1358E-04 |
| S4 | 1.3885E-03 | -2.9923E-03 | -6.6168E-05 | -1.1022E-04 | -6.4042E-04 | 2.8798E-04 | -4.3410E-05 |
| S5 | 1.3711E-02 | 4.8909E-03 | -1.7996E-03 | -7.6668E-06 | -7.0625E-06 | 9.1261E-06 | -7.9786E-07 |
| S6 | 1.3653E-02 | -1.6733E-02 | 1.4097E-02 | -5.1898E-03 | 9.2800E-04 | -8.4005E-05 | 3.1848E-06 |
| S7 | 6.4216E-02 | -4.8051E-02 | 2.0303E-02 | -5.7661E-03 | 1.0104E-03 | -8.5400E-05 | 1.8279E-06 |
| S8 | 6.7849E-02 | -1.0331E-01 | 6.3245E-02 | -2.3736E-02 | 5.4211E-03 | -6.6174E-04 | 3.3489E-05 |
| S9 | 4.0099E-03 | -9.2323E-02 | 6.1038E-02 | -3.1791E-02 | 1.0151E-02 | -1.6932E-03 | 1.1040E-04 |
| S10 | 4.6468E-02 | -5.0418E-02 | 1.5252E-02 | -3.5908E-03 | 7.7023E-04 | -1.1027E-04 | 6.6280E-06 |
Table 5
Table 6
Fig. 4 A shows chromatic curve on the axis of the imaging lens system group of embodiment 2, indicate the light of different wave length via
Converging focal point after lens group deviates.Fig. 4 B shows the astigmatism curve of the imaging lens system group of embodiment 2, indicates meridianal image surface
Bending and sagittal image surface bending.Fig. 4 C shows the distortion curve of the imaging lens system group of embodiment 2, indicates different perspectives situation
Under distortion sizes values.Fig. 4 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 2, indicates light via lens
The deviation of different image heights after group on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that imaging lens system group given by embodiment 2
It can be realized good image quality.
Embodiment 3
The imaging lens system group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this
Apply for the structural schematic diagram of the imaging lens system group of embodiment 3.
As shown in figure 5, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is concave surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is aspherical.
Second lens L2 has a positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a negative power, and object side S5 is convex surface, and image side surface S6 is concave surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 7 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 3
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).Table 8 show can be used for it is each aspherical in embodiment 3
The high-order coefficient of mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 9 is shown
Total effective focal length f of imaging lens system group in embodiment 3, the effective focal length f1 to f5 of each lens, optics total length TTL and most
Big angle of half field-of view HFOV.
Table 7
Table 8
Table 9
Fig. 6 A shows chromatic curve on the axis of the imaging lens system group of embodiment 3, indicate the light of different wave length via
Converging focal point after lens group deviates.Fig. 6 B shows the astigmatism curve of the imaging lens system group of embodiment 3, indicates meridianal image surface
Bending and sagittal image surface bending.Fig. 6 C shows the distortion curve of the imaging lens system group of embodiment 3, indicates different perspectives situation
Under distortion sizes values.Fig. 6 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 3, indicates light via lens
The deviation of different image heights after group on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that imaging lens system group given by embodiment 3
It can be realized good image quality.
Embodiment 4
The imaging lens system group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this
Apply for the structural schematic diagram of the imaging lens system group of embodiment 4.
As shown in fig. 7, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is convex surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is aspherical.
Second lens L2 has a positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a negative power, and object side S5 is convex surface, and image side surface S6 is convex surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is concave surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 10 show the surface types of each lens of the imaging lens system 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 11 show can be used for it is each non-in embodiment 4
The high-order coefficient of spherical mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 12
Show total effective focal length f of imaging lens system group in embodiment 4, the effective focal length f1 to f5 of each lens, optics total length TTL with
And maximum angle of half field-of view HFOV.
Table 10
Table 11
Table 12
Fig. 8 A shows chromatic curve on the axis of the imaging lens system group of embodiment 4, indicate the light of different wave length via
Converging focal point after lens group deviates.Fig. 8 B shows the astigmatism curve of the imaging lens system group of embodiment 4, indicates meridianal image surface
Bending and sagittal image surface bending.Fig. 8 C shows the distortion curve of the imaging lens system group of embodiment 4, indicates different perspectives situation
Under distortion sizes values.Fig. 8 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 4, indicates light via lens
The deviation of different image heights after group on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that imaging lens system group given by embodiment 4
It can be realized good image quality.
Embodiment 5
The imaging lens system group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this
Apply for the structural schematic diagram of the imaging lens system group of embodiment 5.
As shown in figure 9, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is convex surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is spherical surface.
Second lens L2 has a positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a positive light coke, and object side S5 is convex surface, and image side surface S6 is concave surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 13 show the surface types of each lens of the imaging lens system 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 14 show can be used for it is each non-in embodiment 5
The high-order coefficient of spherical mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 15
Show total effective focal length f of imaging lens system group in embodiment 5, the effective focal length f1 to f5 of each lens, optics total length TTL with
And maximum angle of half field-of view HFOV.
Table 13
Table 14
Table 15
Figure 10 A shows chromatic curve on the axis of the imaging lens system group of embodiment 5, indicate the light of different wave length via
Converging focal point after lens group deviates.Figure 10 B shows the astigmatism curve of the imaging lens system group of embodiment 5, indicates meridian picture
Face bending and sagittal image surface bending.Figure 10 C shows the distortion curve of the imaging lens system group of embodiment 5, indicates different perspectives
In the case of distortion sizes values.Figure 10 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 5, indicates light warp
By 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 being taken the photograph given by embodiment 5
As lens group can be realized good image quality.
Embodiment 6
The imaging lens system group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 shows basis
The structural schematic diagram of the imaging lens system group of the embodiment of the present application 6.
As shown in figure 11, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is concave surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is spherical surface.
Second lens L2 has a positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a positive light coke, and object side S5 is convex surface, and image side surface S6 is concave surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 16 show the surface types of each lens of the imaging lens system 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 17 show can be used for it is each non-in embodiment 6
The high-order coefficient of spherical mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 18
Show total effective focal length f of imaging lens system group in embodiment 6, the effective focal length f1 to f5 of each lens, optics total length TTL with
And maximum angle of half field-of view HFOV.
Table 16
Table 17
Table 18
Figure 12 A shows chromatic curve on the axis of the imaging lens system group of embodiment 6, indicate the light of different wave length via
Converging focal point after lens group deviates.Figure 12 B shows the astigmatism curve of the imaging lens system group of embodiment 6, indicates meridian picture
Face bending and sagittal image surface bending.Figure 12 C shows the distortion curve of the imaging lens system group of embodiment 6, indicates different perspectives
In the case of distortion sizes values.Figure 12 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 6, indicates light warp
By 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 being taken the photograph given by embodiment 6
As lens group can be realized good image quality.
Embodiment 7
The imaging lens system group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 shows basis
The structural schematic diagram of the imaging lens system group of the embodiment of the present application 7.
As shown in figure 13, imaging lens system group extremely sequentially includes the first lens L1, the second lens at image side by object side along optical axis
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and imaging surface S13.Imaging lens system group, which may also include, is set to imaging surface
The photosensitive element of S13.
First lens L1 has a negative power, and object side S1 is concave surface, and image side surface S2 is concave surface, and the first lens L1
Object side S1 and image side surface S2 is spherical surface.
Second lens L2 has a positive light coke, and object side S3 is concave surface, and image side surface S4 is convex surface, and the second lens L2
Object side S3 and image side surface S4 is aspherical.
The third lens L3 has a positive light coke, and object side S5 is convex surface, and image side surface S6 is concave surface, and the third lens L3
Object side S5 and image side surface S6 is aspherical.
4th lens L4 has a positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens L4
Object side S7 and image side surface S8 is aspherical.
5th lens L5 has positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens L5
Object side S9 and image side surface S10 be aspherical.
Optionally, imaging lens system group may also include the optical filter L6 with object side S11 and image side surface S12.
Optionally, the diaphragm STO for limiting light beam can be set between the first lens L1 and the second lens L2, to be promoted
The image quality of imaging lens system group.
Table 19 show the surface types of each lens of the imaging lens system 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 20 show can be used for it is each non-in embodiment 7
The high-order coefficient of spherical mirror surface, wherein each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 21
Show total effective focal length f of imaging lens system group in embodiment 7, the effective focal length f1 to f5 of each lens, optics total length TTL with
And maximum angle of half field-of view HFOV.
Table 19
Table 20
Table 21
Figure 14 A shows chromatic curve on the axis of the imaging lens system group of embodiment 7, indicate the light of different wave length via
Converging focal point after lens group deviates.Figure 14 B shows the astigmatism curve of the imaging lens system group of embodiment 7, indicates meridian picture
Face bending and sagittal image surface bending.Figure 14 C shows the distortion curve of the imaging lens system group of embodiment 7, indicates different perspectives
In the case of distortion sizes values.Figure 14 D shows the ratio chromatism, curve of the imaging lens system group of embodiment 7, indicates light warp
By 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 being taken the photograph given by embodiment 7
As lens group can be realized good image quality.
To sum up, embodiment 1 to embodiment 7 meets relationship shown in following table 22 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| f/EPD | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | 1.00 |
| DT11/EPD | 1.07 | 1.14 | 1.04 | 1.15 | 1.50 | 1.51 | 1.03 |
| tan(HFOV/2) | 0.57 | 0.56 | 0.55 | 0.54 | 0.56 | 0.78 | 0.59 |
| f1/f | -1.57 | -1.56 | -1.77 | -2.07 | -1.83 | -1.88 | -1.98 |
| f2345/f | 0.97 | 1.06 | 1.05 | 1.14 | 1.10 | 1.17 | 1.17 |
| f2/f | 1.83 | 1.48 | 1.48 | 2.67 | 2.82 | 2.27 | 2.05 |
| ∑T/TTL | 0.29 | 0.24 | 0.24 | 0.30 | 0.23 | 0.16 | 0.26 |
| CT2/ET2 | 2.99 | 3.02 | 2.28 | 3.03 | 1.90 | 3.00 | 2.48 |
| DT11/DT52 | 0.81 | 0.90 | 0.83 | 0.85 | 1.20 | 0.85 | 0.84 |
| SL/TTL | 0.84 | 0.83 | 0.82 | 0.81 | 0.76 | 0.85 | 0.84 |
Table 22
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 (33)
1. imaging lens system 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 and the 5th lens, which is characterized in that
First lens have negative power, and image side surface is concave surface；
Second lens have positive light coke, and image side surface is convex surface；
The third lens, the 4th lens and the 5th lens all have positive light coke or negative power；
First lens, second lens, the third lens, the 4th lens and the 5th lens are aspheric
Face lens；And
Total effective focal length f of the imaging lens system group and the Entry pupil diameters EPD of the imaging lens system group meet 0.8 < f/EPD <
1.6。
2. imaging lens system group according to claim 1, which is characterized in that the effective focal length f1 of first lens with it is described
Total effective focal length f of imaging lens system group meets -2.1 < f1/f < -1.5.
3. imaging lens system group according to claim 1, which is characterized in that the effective focal length f2 of second lens with it is described
Total effective focal length f of imaging lens system group meets 1.4 < f2/f < 3.
4. imaging lens system group according to claim 1, which is characterized in that second lens, the third lens, described
The combination focal power of 4th lens and the 5th lens is positive light coke, a combination thereof focal length f2345 and the imaging lens system group
Total effective focal length f meet 0.8 < f2345/f < 1.3.
5. imaging lens system group according to claim 1, which is characterized in that effective half bore of the first lens object side
DT11 and the Entry pupil diameters EPD of the imaging lens system group meet 1 < DT11/EPD < 1.6.
6. imaging lens system group according to claim 1, which is characterized in that effective half bore of the first lens object side
Effective half bore DT52 of DT11 and the 5th lens image side surface meets 0.7 < DT11/DT52 < 1.3.
7. imaging lens system group according to claim 1, which is characterized in that second lens are in the center on the optical axis
The edge thickness ET2 of thickness CT2 and second lens meets 1.8 < CT2/ET2 < 3.5.
8. imaging lens system group according to any one of claim 1 to 7, which is characterized in that the imaging lens system group is most
Big angle of half field-of view HFOV meets tan (HFOV/2) > 0.5.
9. imaging lens system group according to any one of claim 1 to 7, which is characterized in that first lens are to described
In 5th lens between two lens of arbitrary neighborhood on axis the object side of the summation ∑ T of spacing distance and first lens to described
Distance TTL meets 0.1 < ∑ T/TTL≤0.3 on the axis of the imaging surface of imaging lens system group.
10. imaging lens system group according to any one of claim 1 to 7, which is characterized in that the imaging lens system group is also wrapped
Include the diaphragm being set between first lens and second lens.
11. imaging lens system group according to claim 10, which is characterized in that the diaphragm to the imaging lens system group at
Distance TTL meets on the object side to the axis of the imaging surface of the imaging lens system group of distance and first lens on the axis of image planes
0.7 < SL/TTL < 1.
12. imaging lens system group, there is total effective focal length f, the imaging lens system group sequentially includes: the by object side to image side along optical axis
One lens, the second lens, the third lens, the 4th lens and the 5th lens, which is characterized in that
First lens have negative power；
At least one of second lens, the third lens, the 4th lens and described 5th lens have positive light
Focal power,
Wherein, the effective focal length f1 of first lens meets -2.1 < -1.5 < f1/f,
Wherein, the combination focal power of second lens, the third lens, the 4th lens and the 5th lens is positive
Focal power；
First lens, second lens, the third lens, the 4th lens and the 5th lens are aspheric
Face lens；And
The maximum angle of half field-of view HFOV of the imaging lens system group meets tan (HFOV/2) > 0.5.
13. imaging lens system group according to claim 12, which is characterized in that second lens have positive light coke.
14. imaging lens system group according to claim 13, which is characterized in that the effective focal length f2 of second lens and institute
The total effective focal length f for stating imaging lens system group meets 1.4 < f2/f < 3.
15. imaging lens system group according to claim 12 or 13, which is characterized in that second lens, the third are saturating
The combination focal power of mirror, the 4th lens and the 5th lens is positive light coke, a combination thereof focal length f2345 and the camera shooting
Total effective focal length f of lens group meets 0.8 < f2345/f < 1.3.
16. imaging lens system group according to claim 12 or 13, which is characterized in that second lens are on the optical axis
Center thickness CT2 and second lens edge thickness ET2 meet 1.8 < CT2/ET2 < 3.5.
17. imaging lens system group according to claim 12, which is characterized in that the imaging lens system group further includes being set to institute
State the diaphragm between the first lens and second lens.
18. imaging lens system group according to claim 17, which is characterized in that the diaphragm to the imaging lens system group at
Distance TTL meets on the object side to the axis of the imaging surface of the imaging lens system group of distance and first lens on the axis of image planes
0.7 < SL/TTL < 1.
19. imaging lens system group described in 2 or 17 according to claim 1, which is characterized in that the first lens object side it is effective
Half bore DT11 and the Entry pupil diameters EPD of the imaging lens system group meet 1 < DT11/EPD < 1.6.
20. imaging lens system group described in 2 or 17 according to claim 1, which is characterized in that the first lens object side it is effective
Effective half bore DT52 of half bore DT11 and the 5th lens image side surface meets 0.7 < DT11/DT52 < 1.3.
21. imaging lens system group described in 2 or 17 according to claim 1, which is characterized in that first lens to the described 5th are thoroughly
The object side of the summation ∑ T of spacing distance and first lens is saturating to the camera shooting on axis between two lens of arbitrary neighborhood in mirror
Distance TTL meets 0.1 < ∑ T/TTL≤0.3 on the axis of the imaging surface of microscope group.
22. imaging lens system group according to claim 12, which is characterized in that total effective focal length f of the imaging lens system group
Meet 0.8 < f/EPD < 1.6 with the Entry pupil diameters EPD of the imaging lens system group.
It by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th along optical axis 23. imaging lens system group
Lens and the 5th lens, which is characterized in that
First lens have negative power, and at least one of object side and image side surface are concave surface；
Second lens have positive light coke, and at least one of object side and image side surface are convex surface；
The third lens, the 4th lens and the 5th lens all have positive light coke or negative power；
First lens, second lens, the third lens, the 4th lens and the 5th lens are aspheric
Face lens；And
Effective half bore DT11 of the first lens object side and the Entry pupil diameters EPD of the imaging lens system group meet 1 <
DT11/EPD < 1.6.
24. imaging lens system group according to claim 23, which is characterized in that effective half mouthful of the first lens object side
Effective half bore DT52 of diameter DT11 and the 5th lens image side surface meets 0.7 < DT11/DT52 < 1.3.
25. imaging lens system group according to claim 23, which is characterized in that total effective focal length f of the imaging lens system group
Meet 0.8 < f/EPD < 1.6 with the Entry pupil diameters EPD of the imaging lens system group.
26. the imaging lens system group according to any one of claim 23 to 25, which is characterized in that first lens have
The total effective focal length f for imitating focal length f1 and the imaging lens system group meets -2.1 < f1/f < -1.5.
27. the imaging lens system group according to any one of claim 23 to 25, which is characterized in that second lens have
The total effective focal length f for imitating focal length f2 and the imaging lens system group meets 1.4 < f2/f < 3.
28. the imaging lens system group according to any one of claim 23 to 25, which is characterized in that second lens, institute
State the third lens, the 4th lens and the 5th lens combination focal power be positive light coke, a combination thereof focal length f2345 with
Total effective focal length f of the imaging lens system group meets 0.8 < f2345/f < 1.3.
29. the imaging lens system group according to any one of claim 23 to 25, which is characterized in that second lens are in institute
The edge thickness ET2 for stating center thickness CT2 and second lens on optical axis meets 1.8 < CT2/ET2 < 3.5.
30. the imaging lens system group according to any one of claim 23 to 25, which is characterized in that the imaging lens system group is also
Including the diaphragm being set between first lens and second lens.
31. imaging lens system group according to claim 30, which is characterized in that the diaphragm to the imaging lens system group at
Distance TTL meets on the object side to the axis of the imaging surface of the imaging lens system group of distance and first lens on the axis of image planes
0.7 < SL/TTL < 1.
32. the imaging lens system group according to claim 23 or 31, which is characterized in that first lens to the described 5th are thoroughly
The object side of the summation ∑ T of spacing distance and first lens is saturating to the camera shooting on axis between two lens of arbitrary neighborhood in mirror
Distance TTL meets 0.1 < ∑ T/TTL≤0.3 on the axis of the imaging surface of microscope group.
33. the imaging lens system group according to claim 23 or 31, which is characterized in that maximum half view of the imaging lens system group
Rink corner HFOV meets tan (HFOV/2) > 0.5.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710695396.XA CN107272165B (en) | 2017-08-15 | 2017-08-15 | Imaging lens system group |
| PCT/CN2018/080109 WO2019033755A1 (en) | 2017-08-15 | 2018-03-23 | Image pickup lens group |
| US16/231,114 US11226471B2 (en) | 2017-08-15 | 2018-12-21 | Camera lens assembly |
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| CN201710695396.XA CN107272165B (en) | 2017-08-15 | 2017-08-15 | Imaging lens system group |
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| CN107272165B true CN107272165B (en) | 2019-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033755A1 (en) | 2017-08-15 | 2019-02-21 | 浙江舜宇光学有限公司 | Image pickup lens group |
| CN108445608B (en) * | 2018-05-25 | 2023-08-22 | 广东弘景光电科技股份有限公司 | High-pixel wide-angle infrared optical system and camera module applying same |
| CN109507784B (en) * | 2018-12-12 | 2023-10-27 | 广东弘景光电科技股份有限公司 | High-pixel large-aperture-depth imaging optical system and camera module applying same |
| CN109358411B (en) * | 2018-12-17 | 2024-06-18 | 浙江舜宇光学有限公司 | Image pickup lens |
| CN110568592B (en) * | 2019-09-27 | 2024-05-10 | 浙江舜宇光学有限公司 | Optical imaging lens |
| US20220326481A1 (en) * | 2020-03-03 | 2022-10-13 | Jiangxi Jingchao Optical Co., Ltd. | Wide-angle lens, image capturing device, and electronic device |
| CN114509858A (en) * | 2020-11-17 | 2022-05-17 | 宁波舜宇车载光学技术有限公司 | Optical lens, optical imaging apparatus, and vehicle |
| TWI792202B (en) * | 2021-02-26 | 2023-02-11 | 大陸商信泰光學（深圳）有限公司 | Lens assembly |
| WO2022236817A1 (en) * | 2021-05-14 | 2022-11-17 | 欧菲光集团股份有限公司 | Optical system, image capturing module, and electronic device |
| CN115079386B (en) * | 2022-08-22 | 2022-11-04 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN115437127B (en) * | 2022-10-26 | 2023-03-31 | 江西联昊光电有限公司 | Optical lens and near-to-eye display system |
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| CN207008164U (en) * | 2017-08-15 | 2018-02-13 | 浙江舜宇光学有限公司 | Imaging lens system group |
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| CN103777322A (en) * | 2013-09-30 | 2014-05-07 | 玉晶光电(厦门)有限公司 | Portable electronic device and optical imaging lens thereof |
| CN103777323A (en) * | 2013-09-30 | 2014-05-07 | 玉晶光电(厦门)有限公司 | Optical imaging lens and electronic device applying optical imaging lens |
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