CN109270661A - Pick-up lens group - Google Patents
Pick-up lens group Download PDFInfo
- Publication number
- CN109270661A CN109270661A CN201811391995.3A CN201811391995A CN109270661A CN 109270661 A CN109270661 A CN 109270661A CN 201811391995 A CN201811391995 A CN 201811391995A CN 109270661 A CN109270661 A CN 109270661A
- Authority
- CN
- China
- Prior art keywords
- lens
- pick
- lens group
- object side
- curvature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 74
- 239000000571 coke Substances 0.000 claims abstract description 43
- 238000003384 imaging method Methods 0.000 description 39
- 238000010586 diagram Methods 0.000 description 16
- 230000004075 alteration Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 5
- 241000700608 Sagitta Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102220162701 rs201262353 Human genes 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- 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
-
- 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
Abstract
This application discloses a kind of pick-up lens group, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens with focal power by object side to image side along optical axis.Wherein, the first lens have negative power；Second lens have positive light coke；And first at least one lens into the 5th lens of lens have it is non-rotationally-symmetric aspherical.Wherein, the effective focal length fy of the Y direction of the effective focal length fx and pick-up lens group of the X-direction of pick-up lens group meets 0.5 < fx/fy < 1.5.
Description
Technical field
This application involves a kind of pick-up lens groups, more particularly, to a kind of pick-up lens group including five lens.
Background technique
In recent years, with the fast development in cell-phone camera field and the Complimentary Metal-Oxide half of large scale, high pixel
The chip of conductor element (CMOS) or photosensitive coupling element (CCD) it is universal, major cell phone manufacturer pursue camera lens it is lightening with
While miniaturization, harsh requirement is even more proposed to the image quality of camera lens.It is currently applied to the portable electronics such as mobile phone
The camera lens of product mostly uses the aspherical surface structure of rotational symmetry (axial symmetry).The aspherical of this kind of rotational symmetry can be seen
It is formed, is only had in meridional plane adequately freely around 360 ° of optical axis rotation at being a curve in meridional plane
Degree, therefore off-axis aberration can not be corrected well.
Summary of the invention
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The pick-up lens group of at least one above-mentioned disadvantage.
On the one hand, this application provides such a pick-up 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 and the 5th lens with focal power.Wherein, first thoroughly
Mirror can have negative power；Second lens can have positive light coke；And first lens at least one of the 5th lens thoroughly
Mirror can have non-rotationally-symmetric aspherical.Wherein, the effective focal length fx of the X-direction of pick-up lens group and pick-up lens group
The effective focal length fy of Y direction can meet 0.5 < fx/fy < 1.5.
In one embodiment, the curvature of the object side of the radius of curvature R 2 and the first lens of the image side surface of the first lens
Radius R1 can meet -0.5 < R2/R1 < 0.5.
In one embodiment, the curvature of the object side of the radius of curvature R 5 and the second lens of the object side of the third lens
Radius R3 can meet -0.5 < R5/R3 < 1.0.
In one embodiment, the curvature of the image side surface of the radius of curvature R 6 and the 4th lens of the image side surface of the third lens
Radius R8 can meet -3.0 < R6/R8 < -0.5.
In one embodiment, the first lens spacing distance of two lens of arbitrary neighborhood on optical axis into the 5th lens
The sum of the spacing distance T12 of ∑ AT and the first lens and the second lens on optical axis can meet 1.0 < ∑ AT/T12 < 3.0.
In one embodiment, the first lens to the 5th lens are respectively at the sum of center thickness on optical axis ∑ CT,
One lens on optical axis center thickness CT1 and the second lens in the center thickness CT2 on optical axis can meet 1.0 < ∑ CT/
(CT1+CT2) 3.0 <.
In one embodiment, the maximum field of view angle FOV of pick-up lens group can meet 100 ° of FOV >.
On the other hand, this application provides such a pick-up lens group, the lens 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 with focal power.Wherein, first
Lens can have negative power；Second lens can have positive light coke；And first lens at least one of to the 5th lens
Lens can have non-rotationally-symmetric aspherical.Wherein, the first lens to the 5th lens respectively at the center thickness on optical axis it
With ∑ CT, the first lens on optical axis center thickness CT1 and the second lens in the center thickness CT2 on optical axis can meet 1.0
< ∑ CT/ (CT1+CT2) < 3.0.
In another aspect, the lens group is along optical axis by object side to image side this application provides such a pick-up lens group
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens with focal power.Wherein, first
Lens can have negative power；Second lens can have positive light coke；And first lens at least one of to the 5th lens
Lens can have non-rotationally-symmetric aspherical.Wherein, the object of the radius of curvature R 5 of the object side of the third lens and the second lens
The radius of curvature R 3 of side can meet -0.5 < R5/R3 < 1.0.
In another aspect, the lens group is along optical axis by object side to image side this application provides such a pick-up lens group
It sequentially include: the first lens, the second lens, the third lens, the 4th lens and the 5th lens with focal power.Wherein, first
Lens can have negative power；Second lens can have positive light coke；And first lens at least one of to the 5th lens
Lens can have non-rotationally-symmetric aspherical.Wherein, the picture of the radius of curvature R 6 of the image side surface of the third lens and the 4th lens
The radius of curvature R 8 of side can meet -3.0 < R6/R8 < -0.5.
The application uses multi-disc (for example, five) lens, by each power of lens of reasonable distribution, face type, each
Spacing etc. on axis between the center thickness of mirror and each lens so that above-mentioned pick-up lens group have miniaturization, big wide-angle and
At least one beneficial effect such as high pixel.In addition, it is non-rotationally-symmetric aspherical by introducing, to the axis my husband of pick-up lens group
Noon aberration and sagitta of arc aberration are corrected simultaneously, to further promote imaging image 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 pick-up lens group according to the embodiment of the present application 1；
Fig. 2 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 1 in first quartile；
Fig. 3 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 2；
Fig. 4 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 2 in first quartile；
Fig. 5 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 3；
Fig. 6 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 3 in first quartile；
Fig. 7 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 4；
Fig. 8 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 4 in first quartile；
Fig. 9 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 5；
Figure 10 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 5 in first quartile；
Figure 11 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 6；
Figure 12 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 6 in first quartile；
Figure 13 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 7；
Figure 14 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 7 in first quartile；
Figure 15 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 8；
Figure 16 diagrammatically illustrates situation of the RMS spot diameter of the pick-up lens group of embodiment 8 in first quartile.
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.In each lens, it is known as this thoroughly near the surface of object
The object side of mirror；In each lens, the image side surface of the lens is known as near the surface of imaging surface.
Herein, it is Z-direction that we, which define and are parallel to the direction of optical axis, vertical with Z axis and in the meridional plane
Direction be Y direction, it is vertical with Z axis and be located at sagittal plane in direction be X-direction.Unless otherwise stated, this
Each mark of reference (for example, radius of curvature etc.) in text in addition to the mark of reference for being related to visual field is indicated along pick-up lens group
The characteristic parameter value of Y direction.For example, in case of no particular description, conditional " R2/R1 " indicates the picture of the first lens
The ratio of the radius of curvature R 1y of the Y direction of the object side of the radius of curvature R 2y and the first lens of the Y direction of side.
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.
Pick-up lens group according to the application illustrative embodiments may include such as five lens with focal power,
That is, the first lens, the second lens, the third lens, the 4th lens and the 5th lens.This five lens are along optical axis by object side to picture
Side sequential, and can have airspace between each adjacent lens.
In the exemplary embodiment, the first lens can have negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens have positive light coke or negative power；And the 5th lens have just
Focal power or negative power.The focal power of reasonable disposition lens system is conducive to reduce when the first power of lens is negative
The inclination angle of incident ray obtains bigger visual field scope to effectively share to the realization of object space big visual field；When the second lens light
Focal power is timing, is combined with the first lens of negative power, is conducive to correct optical system off-axis aberration, improve at
Image quality amount.
In the exemplary embodiment, the object side of at least one lens by the first lens into the 5th lens can be passed through
And/or image side surface is set as non-rotationally-symmetric aspherical, further to promote image quality.It is non-rotationally-symmetric it is aspherical be a kind of
Free form surface, rotational symmetry it is aspherical on the basis of, increase non-rotational symmetry component, thus introduce in lens system non-
The aspherical of rotational symmetry is conducive to by effectively correcting to meridian aberration outside axis and sagitta of arc aberration, greatly improving optical
The performance of system.Pick-up lens group according to the application may include that at least one is non-rotationally-symmetric aspherical, it may for example comprise one
It is a it is non-rotationally-symmetric it is aspherical, two it is non-rotationally-symmetric it is aspherical, three it is non-rotationally-symmetric aspherical or more non-
Rotational symmetry it is aspherical.
In the following embodiments, the object side of the first lens in embodiment 1, the image side surface of the second lens, reality in embodiment 2
Apply the object side of the image side surface of the first lens and the second lens in example 3, the object side of the third lens and the 4th lens in embodiment 4
Object side, the 4th lens in the object side of the third lens and the 5th lens object side and image side surface, embodiment 6 in embodiment 5
Image side surface, in embodiment 7 in the object side of first lens and the object side of the 5th lens, embodiment 8 the 5th lens image side
Face is non-rotationally-symmetric aspherical, that is, free form surface.
In the exemplary embodiment, the image side surface of the first lens can be concave surface.
In the exemplary embodiment, the object side of the third lens can be convex surface.
In some embodiments, the third lens can have positive light coke, and image side can be convex surface；4th lens can have
Negative power, object side can be concave surface, and image side surface can be concave surface；5th lens can have positive light coke, and object side can be
Convex surface, image side surface can be convex surface.Each power of lens in reasonable disposition system, is advantageously implemented good imaging effect.
In the exemplary embodiment, the pick-up lens group of the application can meet 0.5 < fx/fy < 1.5 of conditional,
In, fx is the effective focal length of the X-direction of pick-up lens group, and fy is the effective focal length of the Y direction of pick-up lens group.More specifically
Ground, fx and fy can further meet 0.79≤fx/fy≤1.41.The focal length ratio of reasonable disposition X-axis, Y direction, is conducive to mention
The freedom degree of free form surface in two directions is risen, correcting of the pick-up lens group for off-axis aberration is optimized；Meanwhile favorably
It is controlled in appropriate range in by the aberration of pick-up lens group and parameters, to improve the image quality of lens group.
In the exemplary embodiment, the pick-up lens group of the application can meet -0.5 < R2/R1 < 0.5 of conditional,
In, R2 is the radius of curvature of the image side surface of the first lens, and R1 is the radius of curvature of the object side of the first lens.More specifically, R2
- 0.12≤R2/R1≤0.19 can further be met with R1.The radius of curvature of the first lens of reasonable disposition can effectively realize
One lens share the big visual field of object space, improve subsequent optical group to the correction ability of off-axis aberration.
In the exemplary embodiment, the pick-up lens group of the application can meet -0.5 < R5/R3 < 1.0 of conditional,
In, R5 is the radius of curvature of the object side of the third lens, and R3 is the radius of curvature of the object side of the second lens.More specifically, R5
- 0.23≤R5/R3≤0.63 can further be met with R3.The radius of curvature of reasonable disposition lens, it is advantageously ensured that the CRA of camera lens
Matching, and be conducive to correct the curvature of field of camera lens, meet the requirement of the imaging definition of each visual field.
In the exemplary embodiment, the pick-up lens group of the application can meet -3 < -0.5 < R6/R8 of conditional,
In, R6 is the radius of curvature of the image side surface of the third lens, and R8 is the radius of curvature of the image side surface of the 4th lens.More specifically, R6
- 2.97≤R6/R8≤- 0.68 can further be met with R8.The radius of curvature of reasonable disposition lens, can effectively eliminate optical system
System spherical aberration, obtains image high-definition.Optionally, the image side surface of the image side surface of the third lens and the 4th lens is convex surface,
Alternatively, the image side surface of the image side surface of the third lens and the 4th lens is concave surface.
In the exemplary embodiment, the pick-up lens group of the application can meet conditional 1 < ∑ CT/ (CT1+CT2) <
3.0, wherein ∑ CT is the first lens to the 5th lens respectively at the sum of the center thickness on optical axis, and CT1 is the first lens in light
Center thickness on axis, CT2 are the second lens in the center thickness on optical axis.More specifically, ∑ CT, CT1 and CT2 further may be used
Meet 1.48≤∑ CT/ (CT1+CT2)≤2.86.The center thickness of each lens of reasonable disposition, can be effectively reduced the thickness of camera lens
Sensibility is spent, the small form factor requirements of lens group are met.
In the exemplary embodiment, the pick-up lens group of the application can meet 1.0 < ∑ AT/T12 < 3.0 of conditional,
Wherein, ∑ AT is the first lens the sum of the spacing distance of two lens of arbitrary neighborhood on optical axis into the 5th lens, T12 first
The spacing distance of lens and the second lens on optical axis.More specifically, ∑ AT and T12 can further meet 1.0 < ∑ AT/T12
≤ 2.0, for example, 1.39≤∑ AT/T12≤1.90.The air gap in reasonable disposition lens group between each lens, can be effective
The gap sensibility of camera lens is reduced, and corrects shot field curvature.
In the exemplary embodiment, the pick-up lens group of the application can meet 100 ° of conditional FOV >, wherein FOV is
The maximum field of view angle of pick-up lens group.More specifically, FOV can further meet 105.2 °≤FOV≤128.3 °.Meet conditional
100 ° of FOV >, it is help to obtain biggish field range, improves optical system to the capacity gauge of object space information.
In the exemplary embodiment, above-mentioned pick-up lens group may also include diaphragm, to promote the image quality of camera lens.Light
Door screen may be provided between object side and the third lens.For example, diaphragm may be provided between the first lens and the second lens, alternatively, light
Door screen may also be arranged between the second lens and the third lens.
Optionally, above-mentioned pick-up 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 five can be used according to the pick-up 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 the volume that can effectively reduce camera lens, the machinability for reducing the susceptibility of camera lens and improving camera lens, so that pick-up lens group
It is more advantageous to and produces and processes and be applicable to portable electronic product.In addition, it is non-rotationally-symmetric aspherical by introducing, it is right
The outer meridian aberration of the axis of pick-up lens group and sagitta of arc aberration are corrected, and imaging image quality can be further promoted.
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 4th lens and each lens in the 5th lens and
At least one of image side surface can be aspherical.Optionally, the first lens, the second lens, the third lens, the 4th lens and the 5th
The object side of each lens in lens and image side surface can be aspherical.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting pick-up lens 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 pick-up lens group may also include the lens of other quantity.
The specific embodiment for being applicable to the pick-up lens group of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 and Fig. 2 description according to the pick-up lens group of the embodiment of the present application 1.Fig. 1 is shown according to the application
The structural schematic diagram of the pick-up lens group of embodiment 1.
As shown in Figure 1, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 1 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the pick-up lens group of embodiment 1
Degree, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 1
As shown in Table 1, any one in the second lens E2, the third lens E3, the 4th lens E4 and the 5th lens E5 is saturating
The image side surface S2 of the object side of mirror and image side surface and the first lens E1 are aspherical.In the present embodiment, each aspherical
The face type x of mirror 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 S2-S104、A6、A8、A10、A12、A14And A16。
Table 2
It is non-by table 1 it can also be seen that the object side S1 of the first lens E1 is non-rotationally-symmetric aspherical (that is, the face AAS)
The aspherical face type of rotational symmetry is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
Wherein, z is the rise for being parallel to the face of Z-direction；CUX, CUY be respectively X, Y direction vertex of surface curvature (=
1/ radius of curvature)；KX, KY are respectively the circular cone coefficient of X, Y direction；AR, BR, CR, DR are respectively aspherical rotational symmetry point
4 ranks, 6 ranks, 8 ranks in amount, 10 level numbers；AP, BP, CP, DP are respectively 4 ranks, 6 ranks, 8 in aspherical non-rotational symmetry component
Rank, 10 level numbers.The following table 3 gives AR, BR, CR, DR coefficient that can be used for the non-rotationally-symmetric aspherical S1 in embodiment 1
And AP, BP, CP, DP coefficient.
Table 3
Table 4 give the effective focal length f1 to f5 of each lens in embodiment 1, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -3.46 | fx(mm) | 1.89 |
| f2(mm) | 9.11 | fy(mm) | 1.97 |
| f3(mm) | 3.27 | TTL(mm) | 12.17 |
| f4(mm) | -2.66 | ImgH(mm) | 2.48 |
| f5(mm) | 3.30 | Semi-FOV(°) | 54.9 |
Table 4
Pick-up lens group in embodiment 1 meets:
Fx/fy=0.96, wherein fx is the effective focal length of the X-direction of pick-up lens group, and fy is the Y of pick-up lens group
The effective focal length of axis direction；
R2/R1=0.14, wherein R2 is the radius of curvature of the image side surface S2 of the first lens E1, and R1 is the first lens E1's
The radius of curvature of object side S1；
R5/R3=-0.05, wherein R5 is the radius of curvature of the object side S5 of the third lens E3, and R3 is the second lens E2's
The radius of curvature of object side S3；
R6/R8=-1.09, wherein R6 is the radius of curvature of the image side surface S6 of the third lens E3, and R8 is the 4th lens E4's
The radius of curvature of image side surface S8；
∑ CT/ (CT1+CT2)=1.50, wherein ∑ CT is the first lens E1 to the 5th lens E5 respectively on optical axis
The sum of center thickness, CT1 are the first lens E1 in the center thickness on optical axis, and CT2 is the second lens E2 in the center on optical axis
Thickness；
∑ AT/T12=1.39, wherein ∑ AT be the first lens E1 into the 5th lens E5 two lens of arbitrary neighborhood in light
The sum of spacing distance on axis, T12 are the spacing distance of the first lens E1 and the second lens E2 on optical axis；
FOV=109.7 °, wherein FOV is the maximum field of view angle of pick-up lens group.
At Fig. 2 shows the RMS spot diameters of the pick-up lens group of embodiment 1 in first quartile different image heights position
Size cases.As can be seen from FIG. 2, pick-up lens group given by embodiment 1 can be realized good image quality.
Embodiment 2
Referring to Fig. 3 and Fig. 4 description according to the pick-up 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 pick-up lens group.
As shown in figure 3, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 5 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the pick-up lens group of embodiment 2
Degree, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 5
As shown in Table 5, in example 2, in the first lens E1, the third lens E3, the 4th lens E4 and the 5th lens E5
The object side of any one lens and the object side S3 of image side surface and the second lens E2 be aspherical；Second lens E2's
Image side surface S4 is non-rotationally-symmetric aspherical.
Table 6 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 7, which is shown, can be used for non-rotationally-symmetric aspherical S4 in embodiment 2
Rotational symmetry component and non-rotational symmetry component higher order coefficient, wherein non-rotationally-symmetric aspherical face type can be by upper
The formula (2) provided in embodiment 1 is stated to limit.
Table 6
Table 7
Table 8 give the effective focal length f1 to f5 of each lens in embodiment 2, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -3.38 | fx(mm) | 2.17 |
| f2(mm) | 10.18 | fy(mm) | 2.16 |
| f3(mm) | 2.75 | TTL(mm) | 12.62 |
| f4(mm) | -2.30 | ImgH(mm) | 3.25 |
| f5(mm) | 3.04 | Semi-FOV(°) | 64 |
Table 8
Fig. 4 shows the RMS spot diameter of the pick-up lens group of embodiment 2 in first quartile at different image heights position
Size cases.As can be seen from FIG. 4, pick-up lens group given by embodiment 2 can be realized good image quality.
Embodiment 3
The pick-up lens group according to the embodiment of the present application 3 is described referring to Fig. 5 and Fig. 6.Fig. 5 is shown according to this Shen
Please embodiment 3 pick-up lens group structural schematic diagram.
As shown in figure 5, according to the pick-up lens group of the application illustrative embodiments along optical axis by object side to image side sequentially
It include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 9 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the pick-up lens group of embodiment 3
Degree, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 9
As shown in Table 9, in embodiment 3, any one in the third lens E3, the 4th lens E4 and the 5th lens E5 is saturating
The image side surface S4 of the object side of mirror and image side surface, the object side S1 of the first lens E1 and the second lens E2 is aspherical；The
The object side S3 of the image side surface S2 of one lens E1 and the second lens E2 are non-rotationally-symmetric aspherical.
Table 10 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.Table 11 show can be used for it is non-rotationally-symmetric aspherical in embodiment 3
The rotational symmetry component of S2 and S3 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type
It can be limited by the formula (2) provided in above-described embodiment 1.
Table 10
Table 11
Table 12 give the effective focal length f1 to f5 of each lens in embodiment 3, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -3.458 | fx(mm) | 2.37 |
| f2(mm) | 15.98 | fy(mm) | 2.25 |
| f3(mm) | 348 | TTL(mm) | 12.90 |
| f4(mm) | -2.86 | ImgH(mm) | 2.48 |
| f5(mm) | 3.95 | Semi-FOV(°) | 52.6 |
Table 12
Fig. 6 shows the RMS spot diameter of the pick-up lens group of embodiment 3 in first quartile at different image heights position
Size cases.As can be seen from FIG. 6, pick-up lens group given by embodiment 3 can be realized good image quality.
Embodiment 4
The pick-up lens group according to the embodiment of the present application 4 is described referring to Fig. 7 and Fig. 8.Fig. 7 is shown according to this Shen
Please embodiment 4 pick-up lens group structural schematic diagram.
As shown in fig. 7, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.The third lens E3 has negative power, 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 concave surface, and image side surface S10 is concave surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 13 show the surface types of each lens of the pick-up lens group of embodiment 4, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 13
As shown in Table 13, in example 4, any one in the first lens E1, the second lens E2 and the 5th lens E5
The image side surface S8 of the object side of lens and image side surface, the image side surface S6 of the third lens E3 and the 4th lens E4 is aspherical；
The object side S7 of the object side S5 and the 4th lens E4 of the third lens E3 are non-rotationally-symmetric aspherical.
Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 15 show can be used for it is non-rotationally-symmetric aspherical in embodiment 4
The rotational symmetry component of S5 and S7 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type
It can be limited by the formula (2) provided in above-described embodiment 1.
Table 14
Table 15
Table 16 give the effective focal length f1 to f5 of each lens in embodiment 4, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -2.96 | fx(mm) | 1.73 |
| f2(mm) | 5.91 | fy(mm) | 1.50 |
| f3(mm) | -15.466 | TTL(mm) | 11.92 |
| f4(mm) | 2.49 | ImgH(mm) | 2.48 |
| f5(mm) | -10.9 | Semi-FOV(°) | 64.2 |
Table 16
Fig. 8 shows the RMS spot diameter of the pick-up lens group of embodiment 4 in first quartile at different image heights position
Size cases.As can be seen from FIG. 8, pick-up lens group given by embodiment 4 can be realized good image quality.
Embodiment 5
The pick-up lens group according to the embodiment of the present application 5 is described referring to Fig. 9 and Figure 10.Fig. 9 is shown according to this
Apply for the structural schematic diagram of the pick-up lens group of embodiment 5.
As shown in figure 9, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 17 show the surface types of each lens of the pick-up lens group of embodiment 5, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 17
As shown in Table 17, any one in embodiment 5, in the first lens E1, the second lens E2 and the 4th lens E4
The object side S5 of the object side of lens and image side surface and the third lens E3 are aspherical；The image side surface S6 of the third lens E3 with
And the 5th the object side S9 and image side surface S10 of lens E5 be non-rotationally-symmetric aspherical.
Table 18 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 19 show can be used for it is non-rotationally-symmetric aspherical in embodiment 5
The rotational symmetry component of S5, S9 and S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical
Face type can be limited by the formula (2) provided in above-described embodiment 1.
Table 18
Table 19
Table 20 give the effective focal length f1 to f5 of each lens in embodiment 5, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -3.29 | fx(mm) | 1.61 |
| f2(mm) | 8.66 | fy(mm) | 2.03 |
| f3(mm) | 3.377 | TTL(mm) | 14.17 |
| f4(mm) | -3.3 | ImgH(mm) | 3.25 |
| f5(mm) | 4.994 | Semi-FOV(°) | 55.7 |
Table 20
Figure 10 shows the RMS spot diameter of the pick-up lens group of embodiment 5 in first quartile at different image heights position
Size cases.As can be seen from FIG. 10, pick-up lens group given by embodiment 5 can be realized good image quality.
Embodiment 6
The pick-up lens group according to the embodiment of the present application 6 is described referring to Figure 11 and Figure 12.
Figure 11 shows the structural schematic diagram of the pick-up lens group according to the embodiment of the present application 6.
As shown in figure 11, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 21 show the surface types of each lens of the pick-up lens group of embodiment 6, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 21
As shown in Table 21, in embodiment 6, in the first lens E1, the second lens E2, the third lens E3 and the 5th lens E5
The object side of any one lens and the object side S7 of image side surface and the 4th lens E4 be aspherical；4th lens E4's
Image side surface S8 is non-rotationally-symmetric aspherical.
Table 22 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 23 show can be used for it is non-rotationally-symmetric aspherical in embodiment 6
The rotational symmetry component of S8 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 22
Table 23
Table 24 give the effective focal length f1 to f5 of each lens in embodiment 6, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -4.52 | fx(mm) | 2.31 |
| f2(mm) | 9.49 | fy(mm) | 2.37 |
| f3(mm) | 4.66 | TTL(mm) | 9.95 |
| f4(mm) | -4.28 | ImgH(mm) | 3.25 |
| f5(mm) | 3.22 | Semi-FOV(°) | 52.6 |
Table 24
Figure 12 shows the RMS spot diameter of the pick-up lens group of embodiment 6 in first quartile at different image heights position
Size cases.As can be seen from FIG. 12, pick-up lens group given by embodiment 6 can be realized good image quality.
Embodiment 7
The pick-up lens group according to the embodiment of the present application 7 is described referring to Figure 13 and Figure 14.Figure 13 shows basis
The structural schematic diagram of the pick-up lens group of the embodiment of the present application 7.
As shown in figure 13, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
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
Positive light coke, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 25 show the surface types of each lens of the pick-up lens group of embodiment 7, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 25
As shown in Table 25, any one in embodiment 7, in the second lens E2, the third lens E3 and the 4th lens E4
The image side surface S10 of the object side of lens and image side surface, the image side surface S2 of the first lens E1 and the 5th lens E5 is aspherical；
The object side S9 of the object side S1 and the 5th lens E5 of first lens E1 are non-rotationally-symmetric aspherical.
Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 27 show can be used for it is non-rotationally-symmetric aspherical in embodiment 7
The rotational symmetry component of S1 and S9 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type
It can be limited by the formula (2) provided in above-described embodiment 1.
Table 26
Table 27
Table 28 give the effective focal length f1 to f5 of each lens in embodiment 7, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view Semi-FOV.
| f1(mm) | -4.8 | fx(mm) | 2.43 |
| f2(mm) | 12.56 | fy(mm) | 1.72 |
| f3(mm) | 2.53 | TTL(mm) | 15.30 |
| f4(mm) | -2.04 | ImgH(mm) | 3.25 |
| f5(mm) | 3.3 | Semi-FOV(°) | 63.5 |
Table 28
Figure 14 shows the RMS spot diameter of the pick-up lens group of embodiment 7 in first quartile at different image heights position
Size cases.As can be seen from FIG. 14, pick-up lens group given by embodiment 7 can be realized good image quality.
Embodiment 8
The pick-up lens group according to the embodiment of the present application 8 is described referring to Figure 15 and Figure 16.Figure 15 shows basis
The structural schematic diagram of the pick-up lens group of the embodiment of the present application 8.
As shown in figure 15, according to the pick-up 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, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6
With imaging surface S13.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.Optical filter E7 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 29 show the surface types of each lens of the pick-up lens group of embodiment 8, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 29
As shown in Table 29, in embodiment 8, in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
The object side of any one lens and the object side S9 of image side surface and the 5th lens E5 be aspherical；5th lens E5's
Image side surface S10 is non-rotationally-symmetric aspherical.
Table 30 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 31 show can be used for it is non-rotationally-symmetric aspherical in embodiment 8
The rotational symmetry component of S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 30
Table 31
Table 32 give the effective focal length f1 to f5 of each lens in embodiment 8, pick-up lens group X-direction effective coke
Away from fx, the effective focal length fy of the Y direction of pick-up lens group, pick-up lens group optics total length TTL (that is, from the first lens
Distance of the object side S1 of E1 to imaging surface S13 on optical axis), on imaging surface S13 effective pixel area diagonal line length half
ImgH and maximum angle of half field-of view semi-FOV.
| f1(mm) | -3.498 | fx(mm) | 2.31 |
| f2(mm) | 11.228 | fy(mm) | 2.19 |
| f3(mm) | 2.91 | TTL(mm) | 12.49 |
| f4(mm) | -2.45 | ImgH(mm) | 3.25 |
| f5(mm) | 3.293 | semi-FOV(°) | 58.3 |
Table 32
Figure 16 shows the RMS spot diameter of the pick-up lens group of embodiment 8 in first quartile at different image heights position
Size cases.As can be seen from FIG. 16, pick-up lens group given by embodiment 8 can be realized good image quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 33 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| fx/fy | 0.96 | 1.00 | 1.05 | 1.15 | 0.79 | 0.97 | 1.41 | 1.06 |
| R2/R1 | 0.14 | 0.19 | 0.12 | 0.11 | 0.14 | 0.18 | 0.06 | -0.12 |
| R5/R3 | -0.05 | -0.18 | 0.63 | 0.15 | -0.17 | -0.02 | -0.23 | 0.52 |
| R6/R8 | -1.09 | -0.68 | -1.07 | -0.89 | -1.24 | -2.97 | -1.03 | -1.00 |
| ∑CT/(CT1+CT2) | 1.50 | 2.46 | 2.86 | 1.58 | 2.35 | 2.27 | 1.48 | 1.86 |
| ∑AT/T12 | 1.39 | 1.56 | 1.51 | 1.57 | 1.84 | 1.90 | 1.48 | 1.56 |
| FOV(°) | 109.7 | 127.9 | 105.2 | 128.3 | 111.4 | 105.3 | 127.0 | 116.5 |
Table 33
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.The photographic device is equipped with pick-up lens described above
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 (10)
1. pick-up lens group, along optical axis by object side to image side sequentially include: the first lens with focal power, the second lens,
The third lens, the 4th lens and the 5th lens, which is characterized in that
First lens have negative power；
Second lens have positive light coke；
At least one lens of first lens into the 5th lens have non-rotationally-symmetric aspherical；And
The effective focal length fy of the Y direction of the effective focal length fx of the X-direction of the pick-up lens group and the pick-up lens group
Meet 0.5 < fx/fy < 1.5.
2. pick-up lens group according to claim 1, which is characterized in that the radius of curvature of the image side surface of first lens
The radius of curvature R 1 of the object side of R2 and first lens meets -0.5 < R2/R1 < 0.5.
3. pick-up lens group according to claim 1, which is characterized in that the radius of curvature of the object side of the third lens
The radius of curvature R 3 of the object side of R5 and second lens meets -0.5 < R5/R3 < 1.0.
4. pick-up lens group according to claim 1, which is characterized in that the radius of curvature of the image side surface of the third lens
The radius of curvature R 8 of the image side surface of R6 and the 4th lens meets -3.0 < R6/R8 < -0.5.
5. pick-up lens group according to claim 1, which is characterized in that first lens are appointed into the 5th lens
Anticipate the sum of spacing distance of adjacent two lens on optical axis ∑ AT with first lens and second lens described
Spacing distance T12 on optical axis meets 1.0 < ∑ AT/T12 < 3.0.
6. pick-up lens group according to claim 5, which is characterized in that first lens to the 5th lens are distinguished
In the sum of center thickness on optical axis ∑ CT, first lens in the center thickness CT1 and described the on the optical axis
Two lens meet 1.0 < ∑ CT/ (CT1+CT2) < 3.0 in the center thickness CT2 on the optical axis.
7. pick-up lens group according to any one of claim 1 to 6, which is characterized in that the pick-up lens group is most
Big field angle FOV meets 100 ° of FOV >.
8. pick-up lens group, along optical axis by object side to image side sequentially include: the first lens with focal power, the second lens,
The third lens, the 4th lens and the 5th lens, which is characterized in that
First lens have negative power；
Second lens have positive light coke；
At least one lens of first lens into the 5th lens have non-rotationally-symmetric aspherical；And
First lens are to the 5th lens respectively at the sum of center thickness on the optical axis ∑ CT, first lens
Meet 1.0 < ∑s in the center thickness CT2 on the optical axis with second lens in the center thickness CT1 on the optical axis
CT/ (CT1+CT2) < 3.0.
9. pick-up lens group according to claim 8, which is characterized in that the X-direction of the pick-up lens group it is effective
The effective focal length fy of the Y direction of focal length fx and the pick-up lens group meets 0.5 < fx/fy < 1.5.
10. pick-up lens group according to claim 8, which is characterized in that the curvature of the image side surface of first lens half
The radius of curvature R 1 of the object side of diameter R2 and first lens meets -0.5 < R2/R1 < 0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391995.3A CN109270661A (en) | 2018-11-21 | 2018-11-21 | Pick-up lens group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391995.3A CN109270661A (en) | 2018-11-21 | 2018-11-21 | Pick-up lens group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109270661A true CN109270661A (en) | 2019-01-25 |
Family
ID=65190449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811391995.3A Pending CN109270661A (en) | 2018-11-21 | 2018-11-21 | Pick-up lens group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109270661A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765683A (en) * | 2019-03-21 | 2019-05-17 | 东莞市宇瞳光学科技股份有限公司 | A kind of ultra-wide angle tight shot |
| CN111025605A (en) * | 2019-12-25 | 2020-04-17 | 辽宁中蓝光电科技有限公司 | Free-form surface wide-angle camera lens |
| WO2020168705A1 (en) * | 2019-02-19 | 2020-08-27 | 浙江舜宇光学有限公司 | Camera lens group |
| CN113132583A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Optical lens, camera module and terminal |
| CN113514937A (en) * | 2021-05-27 | 2021-10-19 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
| WO2022226827A1 (en) * | 2021-04-28 | 2022-11-03 | 欧菲光集团股份有限公司 | Optical system, camera module and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090073577A1 (en) * | 2007-09-19 | 2009-03-19 | Samsung Electro-Mechanics Co., Ltd. | Super wide angle optical system |
| CN106597641A (en) * | 2017-01-22 | 2017-04-26 | 东莞市宇瞳光学科技股份有限公司 | Small-size low-cost 4MP athermalized prime lens |
| CN206990888U (en) * | 2017-06-13 | 2018-02-09 | 浙江舜宇光学有限公司 | Pick-up lens |
| CN108693628A (en) * | 2017-04-12 | 2018-10-23 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
-
2018
- 2018-11-21 CN CN201811391995.3A patent/CN109270661A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090073577A1 (en) * | 2007-09-19 | 2009-03-19 | Samsung Electro-Mechanics Co., Ltd. | Super wide angle optical system |
| CN106597641A (en) * | 2017-01-22 | 2017-04-26 | 东莞市宇瞳光学科技股份有限公司 | Small-size low-cost 4MP athermalized prime lens |
| CN108693628A (en) * | 2017-04-12 | 2018-10-23 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| CN206990888U (en) * | 2017-06-13 | 2018-02-09 | 浙江舜宇光学有限公司 | Pick-up lens |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020168705A1 (en) * | 2019-02-19 | 2020-08-27 | 浙江舜宇光学有限公司 | Camera lens group |
| CN109765683A (en) * | 2019-03-21 | 2019-05-17 | 东莞市宇瞳光学科技股份有限公司 | A kind of ultra-wide angle tight shot |
| CN109765683B (en) * | 2019-03-21 | 2023-11-07 | 东莞市宇瞳光学科技股份有限公司 | Super wide angle prime lens |
| CN111025605A (en) * | 2019-12-25 | 2020-04-17 | 辽宁中蓝光电科技有限公司 | Free-form surface wide-angle camera lens |
| CN111025605B (en) * | 2019-12-25 | 2021-09-28 | 辽宁中蓝光电科技有限公司 | Free-form surface wide-angle camera lens |
| CN113132583A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Optical lens, camera module and terminal |
| CN113132583B (en) * | 2019-12-31 | 2023-01-20 | 华为技术有限公司 | Optical lens, camera module and terminal |
| WO2022226827A1 (en) * | 2021-04-28 | 2022-11-03 | 欧菲光集团股份有限公司 | Optical system, camera module and electronic device |
| CN113514937A (en) * | 2021-05-27 | 2021-10-19 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
| CN113514937B (en) * | 2021-05-27 | 2023-11-07 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109031629A (en) | imaging optical system | |
| CN108873253A (en) | Pick-up lens | |
| CN109100854A (en) | Pick-up lens | |
| CN109270661A (en) | Pick-up lens group | |
| CN209132500U (en) | Pick-up lens group | |
| CN109283665A (en) | Imaging lens | |
| CN109298515A (en) | Pick-up lens | |
| CN109782418A (en) | Optical imaging lens | |
| CN208506350U (en) | Pick-up lens | |
| CN109212721A (en) | Pick-up lens group | |
| CN108983401A (en) | Optical lens group | |
| CN109581631A (en) | Imaging lens | |
| CN109358414A (en) | Optical imaging system | |
| CN109459840A (en) | Imaging lens | |
| CN209132499U (en) | Pick-up lens group | |
| CN209044159U (en) | Imaging optical system | |
| CN109375349A (en) | Imaging lens | |
| CN109407278A (en) | Imaging lens | |
| CN109656000A (en) | Pick-up lens group | |
| CN109521554A (en) | Pick-up lens group | |
| CN209327669U (en) | Pick-up lens group | |
| CN109445072A (en) | Pick-up lens group | |
| CN209388016U (en) | Pick-up lens group | |
| CN108802972A (en) | Optical imaging system | |
| CN209640581U (en) | Optical imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |