CN110196485A - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
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- CN110196485A CN110196485A CN201910642117.2A CN201910642117A CN110196485A CN 110196485 A CN110196485 A CN 110196485A CN 201910642117 A CN201910642117 A CN 201910642117A CN 110196485 A CN110196485 A CN 110196485A
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 165
- 230000003287 optical effect Effects 0.000 claims abstract description 64
- 238000003384 imaging method Methods 0.000 claims abstract description 42
- 239000000571 coke Substances 0.000 claims abstract description 23
- 201000009310 astigmatism Diseases 0.000 description 14
- 238000005452 bending Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000009738 saturating Methods 0.000 description 6
- 230000004075 alteration Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
This application provides a kind of optical imaging lens, which sequentially includes: the first lens with positive light coke by object side to image side along optical axis；The second lens with negative power, image side surface are concave surface；The third lens with focal power；The 4th lens with negative power；The 5th lens with focal power, object side are convex surface, and image side surface is convex surface；The 6th lens with focal power；The radius of curvature R 12 of the image side surface of the radius of curvature R 11 and the 6th lens of the object side of 6th lens meets | R11/R12 | < 1；The half ImgH of the diagonal line length of effective pixel area meets Fno/ImgH < 0.5mm on the f-number Fno of optical imaging lens and the imaging surface of optical imaging lens‑1。
Description
Technical field
This application involves a kind of optical imaging lens, more particularly to a kind of optical imaging lens including six-element lens.
Background technique
It is higher and higher to the imaging function requirement of portable electronic device at present, and the optical characteristics of optical imaging lens is straight
The image quality for influencing initial pictures is connect, therefore the performance of the matching used optical imaging lens of portable electronic device is also mentioned
Increasingly higher demands are gone out.Especially with the raising of image sensor performance, it is expected in the industry a kind of large aperture, big image planes and
The good optical imaging lens of picture quality.
Summary of the invention
This application provides can at least solve or part solve the optics of at least one above-mentioned disadvantage in the prior art at
As camera lens, for example, large aperture, big image planes optical imaging lens.
This application provides a kind of optical imaging lens, which sequentially may be used along optical axis by object side to image side
It include: the first lens with positive light coke；The second lens with negative power, image side surface are concave surface；With focal power
The third lens；The 4th lens with negative power；The 5th lens with focal power, object side are convex surface, image side surface
For convex surface；The 6th lens with focal power.
According to presently filed embodiment, the radius of curvature R 11 of the object side of the 6th lens and the image side surface of the 6th lens
Radius of curvature R 12 can meet | R11/R12 | < 1.
According to presently filed embodiment, on the f-number Fno of optical imaging lens and the imaging surface of optical imaging lens
The half ImgH of the diagonal line length of effective pixel area can meet Fno/ImgH < 0.5mm-1。
According to presently filed embodiment, the curvature of the image side surface of the effective focal length f and the 6th lens of optical imaging lens
Radius R12 can meet f/R12 < 1.
According to presently filed embodiment, the object side of the radius of curvature R 1 and the 6th lens of the object side of the first lens
Radius of curvature R 11 can meet -2 < R1/R11 < -1.
According to presently filed embodiment, the image side surface of the radius of curvature R 9 and the 5th lens of the object side of the 5th lens
Radius of curvature R 10 can meet 0 < (R9+R10)/(R9-R10) < 0.5.
According to presently filed embodiment, the spacing distance T23 and third of the second lens and the third lens on optical axis are saturating
The spacing distance T34 of mirror and the 4th lens on optical axis can meet 1 < T23/T34 < 2.
According to presently filed embodiment, the spacing distance T45 and the 5th of the 4th lens and the 5th lens on optical axis is saturating
The spacing distance T56 of mirror and the 6th lens on optical axis can meet 0.8 < T45/T56 < 1.3.
According to presently filed embodiment, center thickness CT2 and the third lens of second lens on optical axis are on optical axis
Center thickness CT3 can meet 0.7 < CT2/CT3 < 1.1.
According to presently filed embodiment, center thickness CT3 and fourth lens of the third lens on optical axis are on optical axis
Center thickness CT4 can meet 0.7 < CT3/CT4 < 1.1.
According to presently filed embodiment, the summation Σ of the first lens to the 6th lens center thickness on optical axis respectively
CT and the first lens the summation Σ AT of spacing distance of two lens of arbitrary neighborhood on optical axis into the 6th lens can meet 1.4 <
Σ CT/ Σ AT < 1.8.
According to presently filed embodiment, distance on the image side surface to the axis of the imaging surface of optical imaging lens of the 6th lens
Distance TTL can meet 0.15 < BFL/TTL < on the object side of BFL and the first lens to the axis of the imaging surface of optical imaging lens
0.2。
According to presently filed embodiment, center of the edge thickness ET4 and the 4th lens of the 4th lens on optical axis is thick
Degree CT4 can meet 0.8 < ET4/CT4 < 1.
According to presently filed embodiment, the picture of maximum the effective radius DT21 and the third lens of the object side of the second lens
The maximum effective radius DT32 of side can meet 0.8 < DT21/DT32 < 1.1.
According to presently filed embodiment, the object of maximum the effective radius DT52 and the 6th lens of the image side surface of the 5th lens
The maximum effective radius DT61 of side can meet 0.8 < DT52/DT61 < 1.
According to presently filed embodiment, the intersection point of the object sides of the 5th lens and optical axis to the object side of the 5th lens
The intersection point of the object side and optical axis of distance SAG51 and the 6th lens is to the object side of the 6th lens on the axis on effective radius vertex
Distance SAG61 can meet 0.3 < SAG51/SAG61 < 0.6 on the axis on effective radius vertex.
This application provides the optical imaging lens including multi-disc (for example, six) lens, pass through each lens of reasonable distribution
Focal power, face type, each lens center thickness and each lens between axis on spacing etc. so that above-mentioned optical imaging lens
Beneficial effect with high pixel, large aperture and imaging high-definition, and each lens are easily worked to obtain.
Detailed description of the invention
By referring to the detailed description that the following drawings carries out, the above and further advantage of presently filed embodiment will become
It is clear that attached drawing is intended to show that the illustrative embodiments of the application rather than is limited.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application one；
Fig. 2A to Fig. 2 D sequentially shows chromatic curve on the axis according to the embodiment of the present application one, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 3 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application two；
Fig. 4 A to Fig. 4 D sequentially shows chromatic curve on the axis according to the embodiment of the present application two, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 5 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application three；
Fig. 6 A to Fig. 6 D sequentially shows chromatic curve on the axis according to the embodiment of the present application three, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Fig. 7 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application four；
Fig. 8 A to Fig. 8 D sequentially shows chromatic curve on the axis according to the embodiment of the present application four, astigmatism curve, distortion song
Line and ratio chromatism, curve.
Fig. 9 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application five；
Figure 10 A to Figure 10 D sequentially shows chromatic curve on the axis according to the embodiment of the present application five, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Figure 11 shows the schematic diagram of the optical imaging lens according to the embodiment of the present application six；And
Figure 12 A to Figure 12 D sequentially shows chromatic curve on the axis according to the embodiment of the present application six, 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
First lens of the optical imaging lens of discussion 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.
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.
According to the optical imaging lens of the application illustrative embodiments can include: the first lens, the second lens, third are saturating
Mirror, the 4th lens, the 5th lens and the 6th lens.This six-element lens along optical axis by the lateral image side sequential of object, it is each adjacent
There can be airspace between mirror.
In the exemplary embodiment, the first lens have positive light coke；Second lens have negative power, the second lens
Image side surface be concave surface；The third lens have positive light coke or negative power；4th lens have negative power；5th lens tool
There are positive light coke or negative power, the object side of the 5th lens is convex surface, and the image side surface of the 5th lens is convex surface；6th lens tool
There are positive light coke or negative power.Reasonable distribution focal power and face type can make optical imaging lens have the imaging of high pixel.
In the exemplary embodiment, optical imaging lens provided by the present application may also include diaphragm, and diaphragm is set to object
Between side and the first lens.
In the exemplary embodiment, optical imaging lens provided by the present application can meet conditional | R11/R12 | < 1,
Wherein, R11 is the radius of curvature of the object side of the 6th lens, and R12 is the radius of curvature of the image side surface of the 6th lens.Exemplary
In embodiment, R11 and R12 can meet | R11/R12 | < 0.3.The radius of curvature of two mirror surfaces of the 6th lens is controlled, favorably
In matching the chief ray angle (CRA) of optical imaging lens with the photosensitive sensor at imaging surface, and obtain one long
Back work distance, the image quality of improving optical imaging lens.
In the exemplary embodiment, optical imaging lens provided by the present application can meet conditional Fno/ImgH <
0.5mm-1, wherein Fno is the f-number of optical imaging lens, and ImgH is the valid pixel at the imaging surface of optical imaging lens
The half of the diagonal line length in region.In the exemplary embodiment, Fno and ImgH can meet Fno/ImgH < 0.42mm-1.Pass through
The f-number of optical imaging lens and the ratio of image height are controlled, there is macropore while making optical imaging lens with big image planes
Diameter.
In the exemplary embodiment, optical imaging lens provided by the present application can meet conditional f/R12 < 1, wherein
F is the effective focal length of optical imaging lens, and R12 is the radius of curvature of the image side surface of the 6th lens.In the exemplary embodiment,
F and R12 can meet f/R12 < 0.8.By the curvature for configuring the effective focal length of optical imaging lens and the image side surface of the 6th lens
The ratio of radius is conducive to the axial spherical aberration for correcting optical imaging lens, the image quality of improving optical imaging lens.
In the exemplary embodiment, optical imaging lens provided by the present application can meet -2 < R1/R11 < of conditional -
1, wherein R12 is the radius of curvature of the object side of the first lens, and R11 is the radius of curvature of the object side of the 6th lens.In example
Property embodiment in, R1 and R11 can meet -1.30 < R1/R11 < -1.03.By the curvature for controlling the object side of the first lens
The ratio of the radius of curvature of the object side of radius and the 6th lens is conducive to the curvature of field and astigmatism of correcting optical imaging system, this
Make each lens are easy to process to obtain and there is good processing quality outside.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0 < of conditional (R9+R10)/
(R9-R10) 0.5 <, wherein R9 is the radius of curvature of the object side of the 5th lens, and R10 is the curvature of the image side surface of the 5th lens
Radius.In the exemplary embodiment, R9 and R10 can meet 0.20 < (R9+R10)/(R9-R10) < 0.45.Pass through control the
The radius of curvature of five two mirror surfaces of lens can effectively control astigmatism amount of two mirror surfaces to optical imaging lens of the 5th lens
Contribution, and then control the image quality of visual field and the image quality of aperture band among optical imaging lens, make the imaging of optical imaging lens
Quality is high.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 1 < T23/T34 < 2 of conditional,
Wherein, T23 is the spacing distance of the second lens and the third lens on optical axis, and T34 is the third lens and the 4th lens in optical axis
On spacing distance.In the exemplary embodiment, T23 and T34 can meet 1.20 < T23/T34 < 1.85.It is saturating to control third
The thickness ratio of the airspace of mirror two sides is conducive to the structural compactness for improving optical imaging lens, while also between reduction air
Every the sensibility to the curvature of field.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.8 < T45/T56 < of conditional
1.3, wherein T45 is the spacing distance of the 4th lens and the 5th lens on optical axis, and T56 is that the 5th lens and the 6th lens exist
Spacing distance on optical axis.In the exemplary embodiment, T45 and T56 can meet 0.85 < T45/T56 < 1.25.Control the
The thickness ratio of the airspace of the two sides of five lens, can compensate the amount of distortion of optical imaging lens, and be conducive to
Adjust contribution amount of first lens to the third lens to the distortion of optical imaging lens.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.7 < CT2/CT3 < of conditional
1.1, wherein CT2 is center thickness of second lens on optical axis, and CT3 is center thickness of the third lens on optical axis.Showing
In example property embodiment, CT2 and CT3 can meet 0.75 < CT2/CT3 < 1.05.Control the thickness of the second lens and the third lens
Than advantageously ensuring that the structural compactness of optical imaging lens, keeping optical imaging lens lighter.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.7 < CT3/CT4 < of conditional
1.1, CT3 be center thickness of the third lens on optical axis, and CT4 is center thickness of the 4th lens on optical axis.Exemplary
In embodiment, CT3 and CT4 can meet 0.8 < CT3/CT4 < 1.05.The thickness ratio for controlling the third lens and the 4th lens, has
Conducive to the axial color difference and spherical aberration of correction optical imaging system, make optical imaging system that there is good imaging performance.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 1.4 < Σ CT/ Σ AT of conditional
< 1.8, wherein the summation of the center thickness on the first lens of Σ CT to each comfortable optical axis of the 6th lens, Σ AT is the first lens
The summation of spacing distance of adjacent two lens on optical axis into the 6th lens.In the exemplary embodiment, Σ CT and Σ AT
1.45 < Σ CT/ Σ AT < 1.70 can be met.Control the first lens the sum of thickness of lens and adjacent lens into the 6th lens
Between airspace the sum of thickness ratio, the thickness of each lens can be balanced, and then control residual distortion after each lens assembling
Range, make optical imaging lens with good distortion show.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.15 < BFL/TTL of conditional
< 0.2, wherein BFL is distance on the image side surface to the axis of the imaging surface of optical imaging lens of the 6th lens, and TTL is first saturating
Distance on the object side of mirror to the axis of the imaging surface of optical imaging lens.In the exemplary embodiment, BFL and TTL can meet
0.16 < BFL/TTL < 0.19.By controlling the ratio of back work distance and optical length, it help to obtain longer back work distance
From while making the chief ray angle in visual field be suitable for, and then make that optical imaging lens are suitable for and different sensitive chips matches.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.8 < ET4/CT4 < of conditional
1, wherein ET4 is the edge thickness of the 4th lens, and CT4 is center thickness of the 4th lens on optical axis.In exemplary embodiment party
In formula, ET4 and CT4 can meet 0.85 < ET4/CT4 < 0.95.Control the edge thickness of the 4th lens and the center of the 4th lens
The ratio of thickness can make the 4th lens are easy to process to obtain and have preferable processing performance.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.8 < DT21/DT32 of conditional
< 1.1, wherein DT21 is the maximum effective radius of the object side of the second lens, and DT32 is the maximum of the image side surface of the third lens
Effective radius.In the exemplary embodiment, DT21 and DT32 can meet 0.9 < DT21/DT32 < 1.05.Pass through control second
The maximum effective radius of the image side surface of the maximum effective radius and the third lens of the object side of lens, keeps the second lens and third saturating
Mirror has good processability.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.8 < DT52/DT61 of conditional
< 1, DT52 are the maximum effective radius of the image side surface of the 5th lens, and DT61 is the maximum effectively half of the object side of the 6th lens
Diameter.In the exemplary embodiment, DT52 and DT61 can meet 0.85 < DT52/DT61 < 0.90.By controlling the 5th lens
Image side surface maximum effective radius and the 6th lens object side maximum effective radius, be conducive to improve optical imaging lens
Field of view edge position relative luminance, and then the chip for improving field of view edge position is corresponding, and image is avoided dark angle occur.
In the exemplary embodiment, optical imaging lens provided by the present application can meet 0.3 < SAG51/ of conditional
SAG61 < 0.6, wherein SAG51 be the 5th lens object side and optical axis intersection point to effectively the half of the object side of the 5th lens
Distance on the axis on diameter vertex, SAG61 be the 6th lens object side and optical axis intersection point it is effective to the object side of the 6th lens
Distance on the axis on radius vertex, in the exemplary embodiment, SAG51 and SAG61 can meet 0.35 < SAG51/SAG61 <
0.55.By controlling the rise of the rise of the object side of the 5th lens and the object side of the 6th lens, be conducive to make the two mirrors
The face type in face seamlessly transits, and is conducive to the molding of the two mirror finish, and the 5th lens and the 6th lens is made to have good processing
Property and processing performance.
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 at imaging surface.
Multi-disc eyeglass, such as described above six 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 optical imaging lens can be made with good performance, have the characteristics that high pixel, large aperture and easily fabricated obtain.This Shen
Please embodiment provide optical imaging lens have high quality imaging performance.
In presently filed embodiment, the mirror surface of each lens mostly uses aspherical mirror.The object side of first lens is extremely
At least one mirror surface in the image side surface of 6th lens is aspherical mirror.The characteristics of non-spherical lens, is: from lens centre to
Lens perimeter, curvature are consecutive variations.Have the spherical lens of constant curvature different from from lens centre to lens perimeter, it is non-
Spherical lens has more preferably radius of curvature characteristic, has the advantages that improve and distorts aberration and improvement astigmatic image error.Using aspheric
After the lens of face, the aberration occurred when imaging can be eliminated, as much as possible so as to improve image quality.
Optionally, each of the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens
At least one of the object side of lens and image side surface can be aspherical.Optionally, the first lens, the second lens, the third lens,
4th lens, the object side of the 5th lens and each lens in the 6th lens and image side surface can be aspherical.Optionally,
The object side of one lens and image side surface, the object side of the 6th lens and image side surface are aspherical.Optionally, the object side of the 4th lens
Face and image side surface, the object side of the 5th lens and image side surface are aspherical.Optionally, the image side surface and the 6th lens of the 5th lens
Object side be it is aspherical.Optionally, the object side of the first lens, the object side of the 4th lens, the object side of the 5th lens and
The object side of 6th lens is aspherical.
The specific embodiment for being applicable to the optical imaging lens of above embodiment is further described with reference to the accompanying drawings.
Embodiment one
Referring to figs. 1 to Fig. 2 D, the optical imaging lens of the present embodiment sequentially include: first by object side to image side along optical axis
Lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and optical filter E7.It can be
Diaphragm STO is set between the first lens E1 and object side.There can be airspace between the adjacent lens of any two.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave 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.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 1 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), it is specific as follows:
Table 1
Wherein, TTL is distance on the axis of the object side S1 to the imaging surface S15 of the optical imaging lens of the first lens E1,
ImgH is the half of the diagonal line length of effective pixel area on the imaging surface of the optical imaging lens optical imaging lens, and f is should
The effective focal length of optical imaging lens, Fno are the f-number of the optical imaging lens.
First lens E1 of the optical imaging lens object side of any lens and image side surface into the 6th lens E6 are
Aspherical, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K is circular cone coefficient；Ai
It is the correction factor of aspherical i-th-th rank.The following table 2 gives the height that can be used for according to aspherical S1 to S12 each in embodiment one
Secondary term coefficient A4、A6、A8、A10、A12、A14、A16、A18And A20。
Table 2
Fig. 2A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light warp of different wave length
By the deviation of the converging focal point after optical imaging lens.Fig. 2 B shows the astigmatism curve of the optical imaging lens of the present embodiment,
It indicates meridianal image surface bending and sagittal image surface bending.Fig. 2 C shows the distortion curve of the optical imaging lens of the present embodiment,
Its corresponding distortion sizes values of different image heights of expression.The ratio chromatism, that Fig. 2 D shows the optical imaging lens of the present embodiment is bent
Line indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to fig. 2 A to Fig. 2 D it is found that
Optical imaging lens given by the present embodiment can be realized good image quality.
Embodiment two
Referring to Fig. 3 to Fig. 4 D description according to the optical imaging lens of the embodiment of the present application two, in this exemplary implementation
In example and following embodiment, for brevity, by clipped description similar with the optical imaging lens of embodiment one.
The optical imaging lens of the present embodiment along optical axis by object side to image side sequentially include: the first lens E1, second thoroughly
Mirror E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and optical filter E7.It can be in the first lens E1 and object
Diaphragm STO is set between side.There can be airspace between the adjacent lens of any two.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 3 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), table 4 shows each aspherical high order term system that can be used for the present embodiment optical imaging lens
Number, wherein each aspherical face type can be limited by aforementioned formula (1), specific as follows:
Table 3
Table 4
Fig. 4 A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light warp of different wave length
By the deviation of the converging focal point after optical imaging lens.Fig. 4 B shows the astigmatism curve of the optical imaging lens of the present embodiment,
It indicates meridianal image surface bending and sagittal image surface bending.Fig. 4 C shows the distortion curve of the optical imaging lens of the present embodiment,
Its corresponding distortion sizes values of different image heights of expression.The ratio chromatism, that Fig. 4 D shows the optical imaging lens of the present embodiment is bent
Line indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that
Optical imaging lens provided by the present embodiment can be realized good image quality.
Embodiment three
Referring to Fig. 5 to Fig. 6 D description according to the optical imaging lens of the embodiment of the present application three.The optics of the present embodiment
Imaging lens along optical axis by object side to image side sequentially include: the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
Mirror E4, the 5th lens E5, the 6th lens E6 and optical filter E7.Diaphragm STO can be set between the first lens E1 and object side.Arbitrarily
There can be airspace between two adjacent lens.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave 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.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 5 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), table 6 shows each aspherical high order term system that can be used for the present embodiment optical imaging lens
Number, wherein each aspherical face type can be limited by aforementioned formula (1), specific as follows:
Table 5
Table 6
Fig. 6 A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light warp of different wave length
By the deviation of the converging focal point after optical imaging lens.Fig. 6 B shows the astigmatism curve of the optical imaging lens of the present embodiment,
It indicates meridianal image surface bending and sagittal image surface bending.Fig. 6 C shows the distortion curve of the optical imaging lens of the present embodiment,
Its corresponding distortion sizes values of different image heights of expression.The ratio chromatism, that Fig. 6 D shows the optical imaging lens of the present embodiment is bent
Line indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that
Optical imaging lens provided by the present embodiment can be realized good image quality.
Example IV
Referring to Fig. 7 to Fig. 8 D description according to the optical imaging lens of the embodiment of the present application four.The optics of the present embodiment
Imaging lens along optical axis by object side to image side sequentially include: the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
Mirror E4, the 5th lens E5, the 6th lens E6 and optical filter E7.Diaphragm STO can be set between the first lens E1 and object side.Arbitrarily
There can be airspace between two adjacent lens.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 7 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), table 8 shows each aspherical high order term system that can be used for the present embodiment optical imaging lens
Number, wherein each aspherical face type can be limited by aforementioned formula (1), specific as follows:
Table 7
Table 8
Fig. 8 A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light warp of different wave length
By the deviation of the converging focal point after optical imaging lens.Fig. 8 B shows the astigmatism curve of the optical imaging lens of the present embodiment,
It indicates meridianal image surface bending and sagittal image surface bending.Fig. 8 C shows the distortion curve of the optical imaging lens of the present embodiment,
Its corresponding distortion sizes values of different image heights of expression.The ratio chromatism, that Fig. 8 D shows the optical imaging lens of the present embodiment is bent
Line indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that
Optical imaging lens provided by the present embodiment can be realized good image quality.
Embodiment five
Referring to Fig. 9 to Figure 10 D description according to the optical imaging lens of the embodiment of the present application five.The optics of the present embodiment
Imaging lens along optical axis by object side to image side sequentially include: the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
Mirror E4, the 5th lens E5, the 6th lens E6 and optical filter E7.Diaphragm STO can be set between the first lens E1 and object side.Arbitrarily
There can be airspace between two adjacent lens.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave 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.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 9 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), table 10 shows each aspherical high order term system that can be used for the present embodiment optical imaging lens
Number, wherein each aspherical face type can be limited by aforementioned formula (1), specific as follows:
Table 9
Table 10
Figure 10 A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light of different wave length
Via the deviation of the converging focal point after optical imaging lens.The astigmatism that Figure 10 B shows the optical imaging lens of the present embodiment is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Figure 10 C shows the optical imaging lens of the present embodiment is bent
Line, the corresponding distortion sizes values of the different image heights of expression.Figure 10 D shows the ratio chromatism, of the optical imaging lens of the present embodiment
Curve indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Figure 10 A to Figure 10 D
It is found that optical imaging lens provided by the present embodiment can be realized good image quality.
Embodiment six
Referring to Figure 11 to Figure 12 D description according to the optical imaging lens of the embodiment of the present application six.The light of the present embodiment
It sequentially includes: the first lens E1, the second lens E2, the third lens E3, the 4th by object side to image side that imaging lens, which are learned, along optical axis
Lens E4, the 5th lens E5, the 6th lens E6 and optical filter E7.Diaphragm STO can be set between the first lens E1 and object side.Appoint
Airspace can be had by anticipating between two adjacent lens.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave 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.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.The present embodiment
Optical imaging lens have imaging surface S15.Light from object sequentially passes through each surface, and (S1 is to S14) and is imaged on imaging surface
On S15.
Table 11 shows the basic parameter table of the optical imaging lens of the present embodiment, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm), table 12 shows each aspherical high order term system that can be used for the present embodiment optical imaging lens
Number, wherein each aspherical face type can be limited by aforementioned formula (1), specific as follows:
Table 11
Table 12
Figure 12 A shows chromatic curve on the axis of the optical imaging lens of the present embodiment, indicates the light of different wave length
Via the deviation of the converging focal point after optical imaging lens.The astigmatism that Figure 12 B shows the optical imaging lens of the present embodiment is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Figure 12 C shows the optical imaging lens of the present embodiment is bent
Line, the corresponding distortion sizes values of the different image heights of expression.Figure 12 D shows the ratio chromatism, of the optical imaging lens of the present embodiment
Curve indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Figure 12 A to Figure 12 D
It is found that optical imaging lens provided by the present embodiment can be realized good image quality.
In conclusion embodiment one to the correspondence of embodiment six meets relationship shown in the following table 13.
Table 13
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting optical imaging lens can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking six lens as an example in embodiments, which is not limited to include six
Lens.If desired, the optical imaging lens may also include the lens of other quantity.
In the exemplary embodiment, the application also provides a kind of photographic device, be provided with electronics photosensitive element at
Picture, electronics photosensitive element can be photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS).The camera shooting
Device can be the independent picture pick-up device of such as digital camera, be also possible to be integrated on the mobile electronic devices such as mobile phone
Photographing module.The photographic device is equipped with optical imaging lens described above.
It is described above by reference to exemplary embodiment of the attached drawing to the application.It should be appreciated by those skilled in the art that
The example that above-described embodiment is solely for the purpose of illustration and is lifted, rather than be used to limit scope of the present application.It is all in this Shen
Made any modification, equivalent replacement etc. under introduction please and claims, should be included in that this application claims guarantors
In the range of shield.
Claims (10)
1. optical imaging lens, which is characterized in that sequentially include: by object side to image side along optical axis
The first lens with positive light coke；
The second lens with negative power, image side surface are concave surface；
The third lens with focal power；
The 4th lens with negative power；
The 5th lens with focal power, object side are convex surface, and image side surface is convex surface；
The 6th lens with focal power；
The radius of curvature R 12 of the image side surface of the radius of curvature R 11 and the 6th lens of the object side of 6th lens meets |
R11/R12 | < 1；
The f-number Fno of the optical imaging lens on the imaging surface of the optical imaging lens effective pixel area it is diagonal
The half ImgH of wire length meets Fno/ImgH < 0.5mm-1。
2. optical imaging lens according to claim 1, which is characterized in that the effective focal length f of the optical imaging lens
Meet f/R12 < 1 with the radius of curvature R 12 of the image side surface of the 6th lens.
3. optical imaging lens according to claim 1, which is characterized in that the curvature of the object side of first lens half
The radius of curvature R 11 of the object side of diameter R1 and the 6th lens meets -2 < R1/R11 < -1.
4. optical imaging lens according to claim 1, which is characterized in that the curvature of the object side of the 5th lens half
The radius of curvature R 10 of the image side surface of diameter R9 and the 5th lens meets 0 < (R9+R10)/(R9-R10) < 0.5.
5. optical imaging lens according to claim 1, which is characterized in that second lens and the third lens exist
Spacing distance T23 and the spacing distance T34 of the third lens and the 4th lens on the optical axis on the optical axis
Meet 1 < T23/T34 < 2.
6. optical imaging lens according to claim 1, which is characterized in that the 4th lens and the 5th lens exist
Spacing distance T45 and the spacing distance T56 of the 5th lens and the 6th lens on the optical axis on the optical axis
Meet 0.8 < T45/T56 < 1.3.
7. optical imaging lens according to claim 1, which is characterized in that second lens on the optical axis in
The center thickness CT3 of heart thickness CT2 and the third lens on the optical axis meets 0.7 < CT2/CT3 < 1.1.
8. optical imaging lens according to claim 1, which is characterized in that the third lens on the optical axis in
The center thickness CT4 of heart thickness CT3 and the 4th lens on the optical axis meets 0.7 < CT3/CT4 < 1.1.
9. optical imaging lens according to any one of claim 1 to 8, which is characterized in that the object of the 5th lens
On the intersection point of side and the optical axis to the axis on the effective radius vertex of the object side of the 5th lens distance SAG51 with it is described
On the object side of 6th lens and the intersection point to the axis on the effective radius vertex of the object side of the 6th lens of the optical axis away from
Meet 0.3 < SAG51/SAG61 < 0.6 from SAG61.
10. optical imaging lens, which is characterized in that sequentially include: by object side to image side along optical axis
The first lens with positive light coke；
The second lens with negative power, image side surface are concave surface；
The third lens with focal power；
The 4th lens with negative power；
The 5th lens with focal power, object side are convex surface, and image side surface is convex surface；
The 6th lens with focal power；
The radius of curvature R 12 of the image side surface of the radius of curvature R 11 and the 6th lens of the object side of 6th lens meets |
R11/R12 | < 1；
The radius of curvature R 12 of the image side surface of the effective focal length f of the optical imaging lens and the 6th lens meets f/R12 <
1。
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| CN110196485B (en) | 2024-06-25 |
| CN117331200A (en) | 2024-01-02 |
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