CN108205188B - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
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- CN108205188B CN108205188B CN201810297463.7A CN201810297463A CN108205188B CN 108205188 B CN108205188 B CN 108205188B CN 201810297463 A CN201810297463 A CN 201810297463A CN 108205188 B CN108205188 B CN 108205188B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
-
- 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
- G02B13/004—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 four lenses
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
- G02B9/36—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- +
- G02B9/56—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- + all components being simple lenses
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- Optics & Photonics (AREA)
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Abstract
This application discloses a kind of optical imaging lens, it by object side to image side sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens along optical axis, wherein: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative power；The third lens can have negative power, and object side is convex surface, and image side surface is concave surface；4th lens can have positive light coke or negative power；And second lens and the third lens can meet between distance TTL on optical axis in imaging surface of the airspace T23 with the object side of the first lens to optical imaging lens on optical axis: 0.5 < (T23/TTL) * 10≤1.0.
Description
Technical field
This application involves a kind of optical imaging lens, more particularly, to a kind of optical imagery being made of four eyeglasses
Camera lens.
Background technique
Universal with portable electronic products such as mobile phone, tablet computers, requirement of the people to its image quality is also increasingly
It is high.Meanwhile currently rise it is double take the photograph technology and generally require using telephoto lens obtain higher space angular resolution.In order to full
The demand of sufficient market development, imaging lens need to shorten camera lens overall length, but thus can using less number of lenses as far as possible
The reduction of design freedom is caused, and is difficult to meet the needs of image quality again.
Therefore, the invention proposes a kind of focal length optical imaging lens of four-piece type, which uses less design certainly
By spending, may be implemented to have the characteristics that while system focal length high-resolution.
Summary of the invention
Technical solution provided by the present application at least has been partially solved techniques discussed above problem.
According to the one aspect of the application, such a optical imaging lens are provided, the optical imaging lens are along light
Axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And second airspace T23 and the first lens on optical axis of lens and the third lens object side
The imaging surface of face to optical imaging lens can meet between the distance TTL on optical axis: 0.5 < (T23/TTL) * 10≤1.0.
It in one embodiment, can between the effective focal length f of optical imaging lens and the effective focal length f1 of the first lens
Meet: 2 < f/f1 < 3.
In one embodiment, the radius of curvature of the image side surface of the effective focal length f and the second lens of optical imaging lens
It can meet between R4: 3 < f/R4 < 4.5.
In one embodiment, on the effective focal length f of optical imaging lens and the imaging surface of optical imaging lens effectively
It can meet between the half ImgH of pixel region diagonal line length: 3≤f/ImgH < 3.5.
In one embodiment, airspace T34 and the first lens on optical axis of the third lens and the 4th lens and
Second lens can meet between the airspace T12 on optical axis: 0 < (T12/T34) * 10 < 0.35.
In one embodiment, the effective focal length f of optical imaging lens and the third lens and the 4th lens are on optical axis
Airspace T34 between can meet: 3 < f/T34 < 4.
In one embodiment, the effective focal length f of optical imaging lens, the effective focal length f2 of the second lens and third are saturating
It can meet between the effective focal length f3 of mirror: 1.5 < | f/f2 |+| f/f3 | < 3.5.
In one embodiment, the curvature of the image side surface of the radius of curvature R 5 and the third lens of the object side of the third lens
It can meet between radius R6: 1 < (R5+R6)/(R5-R6) < 3.5.
In one embodiment, the half HFOV at the maximum field of view angle of optical imaging system is smaller than 20 degree.
In one embodiment, the inclination maximum β 21 of the object side of the second lens is smaller than equal to 30 degree.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And second the inclination maximum β 21 of object side of lens be smaller than equal to 30 degree.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And the airspace T34 and the first lens and second of the third lens and the 4th lens on optical axis
Lens can meet between the airspace T12 on optical axis: 0 < (T12/T34) * 10 < 0.35.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And the radius of curvature R 4 of the image side surface of the effective focal length f and the second lens of optical imaging lens it
Between can meet: 3 < f/R4 < 4.5.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And optical imaging lens effective focal length f and optical imaging lens imaging surface on valid pixel
It can meet between the half ImgH of region diagonal line length: 3≤f/ImgH < 3.5.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And the effective focal length f of optical imaging lens and the sky of the third lens and the 4th lens on optical axis
It can meet between the T34 of gas interval: 3 < f/T34 < 4.
According to the another aspect of the application, additionally provide such a optical imaging lens, the optical imaging lens along
Optical axis sequentially may include first lens with focal power, the second lens, the third lens and the 4th lens by object side to image side,
In: the first lens can have positive light coke, and object side can be convex surface, and image side surface can be concave surface；Second lens can have negative light
Focal power；The third lens can have negative power, and object side can be convex surface, and image side surface can be concave surface；4th lens can have just
Focal power or negative power；And the radius of curvature of the image side surface of the radius of curvature R 5 of the object side of the third lens and the third lens
It can meet between R6: 1 < (R5+R6)/(R5-R6) < 3.5.
Optical imaging lens through the above configuration can have focal length, high-resolution, high image quality, balance aberration, is low
At least one beneficial effect such as susceptibility.
Detailed description of the invention
By referring to detailed description made by the following drawings, the above and further advantage of presently filed embodiment will become
It obtains 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 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 1, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 3 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 2, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 5 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 3, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 7 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 4, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 9 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 5, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Figure 11 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 6, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Figure 13 is the structural schematic diagram for showing the optical imaging lens according to the embodiment of the present application 7；And
Figure 14 A to Figure 14 D respectively illustrates chromatic curve on the axis of the optical imaging lens of embodiment 7, astigmatism curve, abnormal
Varied 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, the first, second equal statement is only used for a feature and another feature differentiation
It comes, without indicating any restrictions to feature.Therefore, discussed below without departing substantially from teachings of the present application
First lens are also known as the second 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.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
In bright book use when indicate exist stated feature, entirety, step, operations, elements, and/or components, but do not exclude the presence of or
It is attached with one or more of the other feature, entirety, step, operation, component, assembly unit and/or their combination.In addition, ought be such as
When the statement of at least one of " ... " appears in after the list of listed feature, entire listed feature is modified, rather than is modified
Individual component in list.In addition, when describing presently filed embodiment, use " can with " indicate " one of the application or
Multiple embodiments ".Also, term " illustrative " is intended to refer to example or illustration.
As it is used in the present context, term " substantially ", " about " and similar term are used as the approximate term of table, and
Be not used as the term of table degree, and be intended to illustrate by by those skilled in the art will appreciate that, measured value or calculated value
In inherent variability.
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.
In addition, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define the convex surface position,
Then indicate the lens surface to be less than near axis area be convex surface；If lens surface is concave surface and does not define the concave surface position,
Indicate the lens surface to be less than near axis area be concave surface.Herein, it is known as object near the surface of object in each lens
Side is known as image side surface near the surface of imaging surface in each lens.
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 application is further described below in conjunction with specific embodiment.
There are such as four lens, i.e. the first lens, the according to the optical imaging lens of the application illustrative embodiments
Two lens, the third lens and the 4th lens.This four lens along optical axis from object side to image side sequential.
In the exemplary embodiment, the first lens can have positive light coke, and object side can be convex surface, and image side surface can be
Concave surface；Second lens can have negative power；The third lens can have negative power, and object side can be convex surface, and image side surface can
For concave surface；And the 4th lens can have positive light coke or negative power.By the positive and negative light focus for reasonably controlling each lens
Degree distribution, not only can effectively balance control system low order aberration so that optical imaging lens obtain preferably image quality,
And it can realize focal length characteristic.
In the exemplary embodiment, the airspace T23 and the first lens of the second lens and the third lens on optical axis
The imaging surfaces of object side to optical imaging lens can meet between the distance TTL on optical axis: 0.5 < (T23/TTL) * 10≤
1.0, more specifically 0.71≤(T23/TTL) * 10≤0.99, can further satisfaction.By constraint the first lens object side at
Distance and the airspace ratio of the second lens and the third lens on optical axis on the axis of image planes, can reasonable control system it is abnormal
Become contribution amount, shows system with good distortion.
In the exemplary embodiment, between the effective focal length f of optical imaging lens and the effective focal length f1 of the first lens
It can meet: 2 < f/f1 < 3, more specifically, can further satisfaction 2.12≤f/f1≤2.54.By by effective coke of the first lens
Away from constraining in reasonable range, so that three rank spherical aberrations and the contribution of five rank spherical aberrations are smaller, and can be to saturating behind optical system
Residual spherical aberration caused by mirror is balanced, so that the aberration on axis is smaller, can obtain good image quality.
In the exemplary embodiment, have on the effective focal length f of optical imaging lens and the imaging surface of optical imaging lens
Imitating can meet between the half ImgH of pixel region diagonal line length: 3≤f/ImgH < 3.5, more specifically, can further satisfaction
3.03≤f/ImgH≤3.21.It, can by the ratio of constraint optical imaging lens effective focal length and the half of image planes diagonal line length
With the visual field size of effective control system.
In the exemplary embodiment, the curvature of the image side surface of the effective focal length f and the second lens of optical imaging lens half
It can meet between diameter R4: 3 < f/R4 < 4.5, more specifically, can further satisfaction 3.45≤f/R4≤4.35.By saturating by second
The ratio of the effective focal length of the radius of curvature and optical imaging lens of mirror image side is limited in reasonable range, can be effective
The astigmatism amount of control system, and then the image quality of the outer visual field of axis can be improved.
In the exemplary embodiment, the airspace T34 and the first lens of the third lens and the 4th lens on optical axis
And second lens can meet between the airspace T12 on optical axis: 0 < (T12/T34) * 10 < 0.35, more specifically, can be into one
Step meets 0.14≤(T12/T34) * 10≤0.30.By by airspace on optical axis of the third lens and the 4th lens and the
The ratio constraint of the airspace of one lens and the second lens on optical axis in a certain range, being capable of reasonable control system field
Bent performance, keeps system aberration of visual field outside axis smaller.
In the exemplary embodiment, the effective focal length f of optical imaging lens and the third lens and the 4th lens are in optical axis
On airspace T34 between can meet: 3 < f/T34 < 4, more specifically, can further satisfaction 3.35≤f/T34≤3.75.It is logical
The effective focal length of Planar Mechanisms optical imaging lens and the ratio of the airspace of the third lens and the 4th lens on optical axis, can
Effective control system coma performance, keeps the image quality of system meridian and sagitta of arc both direction close.
In the exemplary embodiment, the effective focal length f of optical imaging lens, the effective focal length f2 of the second lens and third
Can meet between the effective focal length f3 of lens: 1.5 < | f/f2 |+| f/f3 | < 3.5, more specifically, can further satisfaction 1.94≤|
f/f2|+|f/f3|≤3.20.By the focal power of reasonable distribution system, it can make system that there is good image quality and have
The susceptibility of the reduction system of effect.
In the exemplary embodiment, the song of the image side surface of the radius of curvature R 5 and the third lens of the object side of the third lens
Can meet between rate radius R6: 1 < (R5+R6)/(R5-R6) < 3.5, more specifically, can further satisfaction 1.51≤(R5+R6)/
(R5-R6)≤3.02.By constraining the radius of curvature of the third lens, can effective control system light beam the third lens folding
Firing angle degree realizes the good processing characteristics of system.
In the exemplary embodiment, the half HFOV at the maximum field of view angle of optical imaging system is smaller than 20 degree, more
Body, can further satisfaction HFOV be less than or equal to 18.4 degree.By the maximum field of view angle of restraint system, it can preferably realize and be
The characteristic for focal length of uniting.
In the exemplary embodiment, the inclination maximum β 21 of the object side of the second lens is smaller than equal to 30 degree, more specifically
Ground, can further satisfaction β 21 be less than or equal to 29.3 degree.It, can be effective by constraining the inclination maximum of the second lens object side
Light beam is controlled in the refraction angle of the second lens, and makes the second lens of system that there are good technique processing characteristics.
In the exemplary embodiment, optical imaging lens are also provided with the aperture STO for limiting light beam, adjust into
Light quantity improves image quality.
Multi-disc eyeglass, such as described above four 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, can effectively ensure that the focal length specialization of camera lens and improve image quality so that optical imaging lens be more advantageous to production plus
Work and it is applicable to portable electronic product.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror.Non-spherical lens
The characteristics of be: curvature is consecutive variations from lens centre to periphery.With the spherical surface for having constant curvature from lens centre to periphery
Lens are different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve the excellent of astigmatic image error
Point enables to the visual field to become much larger and true.After non-spherical lens, it can eliminate and go out when imaging as much as possible
Existing aberration, so as to improve image quality.In addition, the use of non-spherical lens can also efficiently reduce the lens in optical system
Number.
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 camera lens can be changed, to obtain each result and advantage described in this specification.Although for example,
It is described by taking four lens as an example in embodiment, still the optical imaging lens are not limited to include four optical imaging lens
A lens.If desired, the optical imaging lens may also include the lens of other quantity.
The specific embodiment for being applicable to the optical imaging lens of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D description according to the optical imaging lens of the embodiment of the present application 1.
Fig. 1 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 1.As shown in Figure 1, optics at
As camera lens includes from object side to four lens E1-E4 at image side sequential along optical axis.First lens E1 has object side
S1 and image side surface S2；Second lens E2 has object side S3 and image side surface S4；The third lens E3 has object side S5 and image side surface
S6；And the 4th lens E4 have object side S7 and image side surface S8.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have negative power.
It further include for limiting light beam, setting in object side and the first lens in the optical imaging lens of the present embodiment
Aperture STO between E1.Optical imaging lens according to embodiment 1 may include the optical filtering with object side S9 and image side surface S10
Piece E5, optical filter E5 can be used for correcting color error ratio.Light from object sequentially passes through each surface S1 to S10 and is ultimately imaged
On imaging surface S11.
Table 1 show the surface types of each lens of the optical imaging lens of embodiment 1, radius of curvature, thickness, material and
Circular cone coefficient.
Table 1
The present embodiment uses four lens as an example, passing through the focal length of each eyeglass of reasonable distribution and face type and selecting to close
The focal length characteristic of camera lens is effectively ensured in suitable material；All kinds of aberrations are corrected simultaneously, improve the resolution and imaging product of camera lens
Matter.Each aspherical face type x is limited by following formula:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in upper table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2, which is shown, can be used for each mirror surface in embodiment 1
The high-order coefficient A of S1-S84、A6、A8、A10、A12、A14、A16、A18And A20。
Table 2
The following table 3 shows the effective focal length f1 to f4 of each lens of embodiment 1, the effective focal length f of optical imaging lens,
The object side S1 of one lens E1 to optical imaging lens distance TTL of the imaging surface S11 on optical axis (that is, optical imaging system
Optics total length) and optical imaging lens electronics light sensitive component effective pixel area diagonal line length half ImgH.
Table 3
| f1(mm) | 2.79 | f(mm) | 5.90 |
| f2(mm) | -6.43 | TTL(mm) | 5.00 |
| f3(mm) | -5.79 | ImgH(mm) | 1.95 |
| f4(mm) | -15.74 |
In conjunction with upper table 1, table 3, in this embodiment:
Meet f/R4 between the radius of curvature R 4 of the image side surface S4 of the effective focal length f of optical imaging lens and the second lens E2
=3.45；
Meet f/f1=2.12 between the effective focal length f of optical imaging lens and the effective focal length f1 of the first lens E1；
Effective pixel area diagonal line on the effective focal length f of the optical imaging lens and imaging surface S11 of optical imaging lens
Meet f/ImgH=3.03 between long half ImgH；
The airspace T34 of the third lens E3 and the 4th lens E4 on optical axis exists with the first lens E1 and the second lens E2
Meet (T12/T34) * 10=0.20 between airspace T12 on optical axis；
The object side S1 of airspace T23 and first lens E1 of the second lens E2 and the third lens E3 on optical axis are to light
The imaging surface S11 for learning imaging lens meets (T23/TTL) * 10=0.71 between the distance TTL on optical axis；
The effective focal length f and the airspace T34 of the third lens E3 and the 4th lens E4 on optical axis of optical imaging lens
Between meet f/T34=3.51；
The effective focal length of the effective focal length f of optical imaging lens, the effective focal length f2 of the second lens E2 and the third lens E3
Meet between f3 | f/f2 |+| f/f3 |=1.94；
The S6 radius of curvature R 6 of the image side surface of the radius of curvature R 5 and the third lens E3 of the object side S5 of the third lens E3 it
Between meet (R5+R6)/(R5-R6)=3.02；
HFOV=18.4 ° of half of the maximum field of view angle of optical imaging system；And
The inclination maximum β 21=29.3 ° of the object side of second lens E2.
Fig. 2A shows chromatic curve on the axis of the optical imaging lens of embodiment 1, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Fig. 2 B shows the astigmatism curve of the optical imaging lens of embodiment 1, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 2 C shows the distortion curve of the optical imaging lens of embodiment 1, indicates
Distortion sizes values in the case of different perspectives.Fig. 2 D shows the ratio chromatism, curve of the optical imaging lens of embodiment 1, table
Show light via the deviation of the different image heights after optical imaging lens on imaging surface.A to Fig. 2 D is it is found that implement according to fig. 2
Optical imaging lens given by example 1 can be realized good image quality.
Embodiment 2
The optical imaging lens according to the embodiment of the present application 2 are described referring to Fig. 3 to Fig. 4 D.In addition to optical imaging lens
Head each eyeglass parameter except, such as on the radius of curvature in addition to each eyeglass, thickness, circular cone coefficient, effective focal length, axis between
Except high-order coefficient away from, each mirror surface etc., optical imaging lens and reality described in the present embodiment 2 and following embodiment
The arragement construction for applying optical imaging lens described in example 1 is identical.For brevity, clipped is similar to Example 1
Description.
Fig. 3 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 2.As shown in figure 3, according to reality
The optical imaging lens for applying example 2 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have positive light coke.
The following table 4 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 2
And circular cone coefficient.Table 5 shows the high-order coefficient of each aspherical mirror in embodiment 2.Table 6 shows each of embodiment 2
The effective focal length f1 to f4 of mirror, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imaging lens
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area diagonal line length of the imaging surface S11 on optical axis
Half ImgH.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 4
Table 5
Table 6
| f1(mm) | 2.51 | f(mm) | 6.00 |
| f2(mm) | -5.96 | TTL(mm) | 5.00 |
| f3(mm) | -3.48 | ImgH(mm) | 1.95 |
| f4(mm) | 36.78 |
Fig. 4 A shows chromatic curve on the axis of the optical imaging lens of embodiment 2, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Fig. 4 B shows the astigmatism curve of the optical imaging lens of embodiment 2, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 4 C shows the distortion curve of the optical imaging lens of embodiment 2, indicates
Distortion sizes values in the case of different perspectives.Fig. 4 D shows the ratio chromatism, curve of the optical imaging lens of embodiment 2, table
Show 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 implementing
Optical imaging lens given by example 2 can be realized good image quality.
Embodiment 3
The optical imaging lens according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.
Fig. 5 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 3.As shown in figure 5, according to reality
The optical imaging lens for applying example 3 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have positive light coke.
The following table 7 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 3
And circular cone coefficient.Table 8 shows the high-order coefficient of each aspherical mirror in embodiment 3.Table 9 shows each of embodiment 3
The effective focal length f1 to f4 of mirror, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imaging lens
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area diagonal line length of the imaging surface S11 on optical axis
Half ImgH.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 7
Table 8
Table 9
| f1(mm) | 2.56 | f(mm) | 6.00 |
| f2(mm) | -6.02 | TTL(mm) | 5.00 |
| f3(mm) | -3.72 | ImgH(mm) | 1.95 |
| f4(mm) | 167.31 |
Fig. 6 A shows chromatic curve on the axis of the optical imaging lens of embodiment 3, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Fig. 6 B shows the astigmatism curve of the optical imaging lens of embodiment 3, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 6 C shows the distortion curve of the optical imaging lens of embodiment 3, indicates
Distortion sizes values in the case of different perspectives.Fig. 6 D shows the ratio chromatism, curve of the optical imaging lens of embodiment 3, table
Show 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 implementing
Optical imaging lens given by example 3 can be realized good image quality.
Embodiment 4
The optical imaging lens according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.
Fig. 7 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 4.As shown in fig. 7, according to reality
The optical imaging lens for applying example 4 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have negative power.
The following table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 4
Material and circular cone coefficient.Table 11 shows the high-order coefficient of each aspherical mirror in embodiment 4.Table 12 shows embodiment 4
The effective focal length f1 to f4 of each lens, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imagery
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area of the imaging surface S11 of camera lens on optical axis are diagonal
The half ImgH of wire length.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 10
Table 11
Table 12
| f1(mm) | 2.73 | f(mm) | 5.98 |
| f2(mm) | -6.83 | TTL(mm) | 5.00 |
| f3(mm) | -4.83 | ImgH(mm) | 1.95 |
| f4(mm) | -16.64 |
Fig. 8 A shows chromatic curve on the axis of the optical imaging lens of embodiment 4, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Fig. 8 B shows the astigmatism curve of the optical imaging lens of embodiment 4, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 8 C shows the distortion curve of the optical imaging lens of embodiment 4, indicates
Distortion sizes values in the case of different perspectives.Fig. 8 D shows the ratio chromatism, curve of the optical imaging lens of embodiment 4, table
Show 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 implementing
Optical imaging lens given by example 4 can be realized good image quality.
Embodiment 5
The optical imaging lens according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.
Fig. 9 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 5.As shown in figure 9, according to reality
The optical imaging lens for applying example 5 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have negative power.
The following table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 5
Material and circular cone coefficient.Table 14 shows the high-order coefficient of each aspherical mirror in embodiment 5.Table 15 shows embodiment 5
The effective focal length f1 to f4 of each lens, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imagery
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area of the imaging surface S11 of camera lens on optical axis are diagonal
The half ImgH of wire length.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 13
Table 14
Table 15
| f1(mm) | 2.63 | f(mm) | 6.09 |
| f2(mm) | -6.52 | TTL(mm) | 5.00 |
| f3(mm) | -3.93 | ImgH(mm) | 1.95 |
| f4(mm) | -37.86 |
Figure 10 A shows chromatic curve on the axis of the optical imaging lens of embodiment 5, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Figure 10 B shows the astigmatism curve of the optical imaging lens of embodiment 5,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 10 C shows the distortion curve of the optical imaging lens of embodiment 5,
Indicate the distortion sizes values in the case of different perspectives.The ratio chromatism, that Figure 10 D shows the optical imaging lens of embodiment 5 is bent
Line 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 given by embodiment 5 can be realized good image quality.
Embodiment 6
The optical imaging lens according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.
Figure 11 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 6.As shown in figure 11, according to
The optical imaging lens of embodiment 6 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have positive light coke.
The following table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 6
Material and circular cone coefficient.Table 17 shows the high-order coefficient of each aspherical mirror in embodiment 6.Table 18 shows embodiment 6
The effective focal length f1 to f4 of each lens, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imagery
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area of the imaging surface S11 of camera lens on optical axis are diagonal
The half ImgH of wire length.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 16
Table 17
Table 18
| f1(mm) | 2.48 | f(mm) | 6.20 |
| f2(mm) | -5.77 | TTL(mm) | 5.00 |
| f3(mm) | -3.10 | ImgH(mm) | 1.95 |
| f4(mm) | 32.79 |
Figure 12 A shows chromatic curve on the axis of the optical imaging lens of embodiment 6, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Figure 12 B shows the astigmatism curve of the optical imaging lens of embodiment 6,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 12 C shows the distortion curve of the optical imaging lens of embodiment 6,
Indicate the distortion sizes values in the case of different perspectives.The ratio chromatism, that Figure 12 D shows the optical imaging lens of embodiment 6 is bent
Line 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 given by embodiment 6 can be realized good image quality.
Embodiment 7
The optical imaging lens according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.
Figure 13 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 7.As shown in figure 13, according to
The optical imaging lens of embodiment 7 include the first to fourth lens E1-E4 for being respectively provided with object side and image side surface.
In this embodiment, the 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；The third lens E3 has negative power, and object side S5 is convex surface, and image side surface S6 is recessed
Face；And the 4th lens E4 have positive light coke.
The following table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 7
Material and circular cone coefficient.Table 20 shows the high-order coefficient of each aspherical mirror in embodiment 7.Table 21 shows embodiment 7
The effective focal length f1 to f4 of each lens, the effective focal length f of optical imaging lens, the first lens E1 object side S1 to optical imagery
Distance TTL and optical imaging lens electronics light sensitive component effective pixel area of the imaging surface S11 of camera lens on optical axis are diagonal
The half ImgH of wire length.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 19
Table 20
Table 21
| f1(mm) | 2.46 | f(mm) | 6.25 |
| f2(mm) | -5.78 | TTL(mm) | 5.00 |
| f3(mm) | -2.94 | ImgH(mm) | 1.95 |
| f4(mm) | 29.30 |
Figure 14 A shows chromatic curve on the axis of the optical imaging lens of embodiment 7, indicates the light warp of different wave length
Deviateed by the converging focal point after optical imaging lens.Figure 14 B shows the astigmatism curve of the optical imaging lens of embodiment 7,
Indicate meridianal image surface bending and sagittal image surface bending.Figure 14 C shows the distortion curve of the optical imaging lens of embodiment 7,
Indicate the distortion sizes values in the case of different perspectives.The ratio chromatism, that Figure 14 D shows the optical imaging lens of embodiment 7 is bent
Line indicates light via the deviation of the different image heights after optical imaging lens on imaging surface.According to Figure 14 A to Figure 14 D
It is found that optical imaging lens given by embodiment 7 can be realized good image quality.
To sum up, embodiment 1 to embodiment 7 meets relationship shown in following table 22 respectively.
Table 22
| Conditional/embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| f/f1 | 2.12 | 2.39 | 2.35 | 2.19 | 2.32 | 2.50 | 2.54 |
| (T12/T34)*10 | 0.20 | 0.27 | 0.25 | 0.15 | 0.14 | 0.30 | 0.29 |
| f/R4 | 3.45 | 4.35 | 4.13 | 3.56 | 4.05 | 4.16 | 4.10 |
| (T23/TTL)*10 | 0.71 | 0.73 | 0.76 | 0.78 | 0.80 | 0.97 | 0.99 |
| f/ImgH | 3.03 | 3.08 | 3.08 | 3.07 | 3.12 | 3.18 | 3.21 |
| HFOV(°) | 18.4 | 17.8 | 17.8 | 18.2 | 17.7 | 17.2 | 17.0 |
| f/T34 | 3.51 | 3.58 | 3.70 | 3.36 | 3.35 | 3.74 | 3.75 |
| (R5+R6)/(R5-R6) | 3.02 | 1.30 | 1.51 | 2.50 | 2.12 | 1.39 | 1.24 |
| |f/f2|+|f/f3| | 1.94 | 2.73 | 2.61 | 2.11 | 2.49 | 3.08 | 3.20 |
| β21(°) | 29.3 | 23.8 | 23.6 | 22.6 | 27.5 | 26.8 | 26.9 |
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 (18)
1. optical imaging lens, along optical axis by object side to image side sequentially include first lens with focal power, the second lens,
The third lens and the 4th lens,
It is characterized in that,
First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
Second lens have negative power；
The third lens have negative power, and object side is convex surface, and image side surface is concave surface；
4th lens have positive light coke or negative power；And
The object side of second lens and the third lens airspace T23 on the optical axis and first lens
Imaging surface to the optical imaging lens meets between the distance TTL on the optical axis: 0.5 < (T23/TTL) * 10≤
1.0；
Wherein, the effective focal length f of the optical imaging lens and effective pixel area on the imaging surface of the optical imaging lens
Meet between the half ImgH of diagonal line length: 3≤f/ImgH < 3.5；
Wherein, first lens at least one of the object side of at least one of the 4th lens and image side surface is
Aspherical mirror.
2. optical imaging lens according to claim 1, which is characterized in that the effective focal length f of the optical imaging lens
Meet between the effective focal length f1 of first lens: 2 < f/f1 < 3.
3. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the third lens and described
4th lens are in the airspace T34 and the sky of first lens and second lens on the optical axis on the optical axis
Meet between the T12 of gas interval: 0 < (T12/T34) * 10 < 0.35.
4. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the optical imaging lens
Meet between the radius of curvature R 4 of the image side surface of effective focal length f and second lens: 3 < f/R4 < 4.5.
5. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the optical imaging lens
Effective focal length f and the third lens and the 4th lens meet between the airspace T34 on the optical axis: 3 < f/
T34<4。
6. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the optical imaging lens
Meet between effective focal length f, the effective focal length f2 of second lens and the effective focal length f3 of the third lens: 1.5 < | f/
f2|+|f/f3|<3.5。
7. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the object side of the third lens
Meet between the radius of curvature R 6 of the image side surface of the radius of curvature R 5 and the third lens in face: 1 < (R5+R6)/(R5-R6) <
3.5。
8. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the optical imaging system
The half HFOV at maximum field of view angle is less than 20 degree.
9. optical imaging lens described in any one of -2 according to claim 1, which is characterized in that the object side of second lens
The inclination maximum β 21 in face is less than or equal to 30 degree.
10. optical imaging lens, along optical axis by object side to image side sequentially include first lens with focal power, second thoroughly
Mirror, the third lens and the 4th lens,
It is characterized in that,
First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
Second lens have negative power；
The third lens have negative power, and object side is convex surface, and image side surface is concave surface；
4th lens have positive light coke or negative power；And
The inclination maximum β 21 of the object side of second lens is less than or equal to 30 degree；
Wherein, the effective focal length f of the optical imaging lens and effective pixel area on the imaging surface of the optical imaging lens
Meet between the half ImgH of diagonal line length: 3≤f/ImgH < 3.5；
Wherein, first lens at least one of the object side of at least one of the 4th lens and image side surface is
Aspherical mirror.
11. optical imaging lens according to claim 10, which is characterized in that the effective focal length of the optical imaging lens
Meet between f and the effective focal length f1 of first lens: 2 < f/f1 < 3.
12. optical imaging lens according to claim 10, which is characterized in that the third lens and the 4th lens
On the optical axis airspace T34 and the airspace of first lens and second lens on the optical axis
Meet between T12: 0 < (T12/T34) * 10 < 0.35.
13. optical imaging lens according to claim 12, which is characterized in that second lens and the third lens
The object side of airspace T23 on the optical axis and first lens to the optical imaging lens imaging surface in institute
It states and meets between the distance TTL on optical axis: 0.5 < (T23/TTL) * 10≤1.0.
14. optical imaging lens described in any one of 0-13 according to claim 1, which is characterized in that the optical imaging lens
The effective focal length f of head meets between the airspace T34 on the optical axis with the third lens and the 4th lens: 3 <
f/T34<4。
15. optical imaging lens described in any one of 0-13 according to claim 1, which is characterized in that the optical imaging lens
Meet between the radius of curvature R 4 of the image side surface of the effective focal length f and second lens of head: 3 < f/R4 < 4.5.
16. optical imaging lens described in any one of 0-13 according to claim 1, which is characterized in that the optical imaging lens
Meet between effective focal length f, the effective focal length f2 of second lens and the effective focal length f3 of the third lens of head: 1.5 <
|f/f2|+|f/f3|<3.5。
17. optical imaging lens described in any one of 0-13 according to claim 1, which is characterized in that the third lens
Meet between the radius of curvature R 6 of the image side surface of the radius of curvature R 5 and the third lens of object side: 1 < (R5+R6)/(R5-
R6)<3.5。
18. optical imaging lens described in any one of 0-13 according to claim 1, which is characterized in that the optical imagery system
The half HFOV at the maximum field of view angle of system is less than 20 degree.
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| CN110737071A (en) * | 2019-09-20 | 2020-01-31 | 惠州市星聚宇光学有限公司 | Image pickup optical lens |
| TWI717161B (en) | 2019-12-20 | 2021-01-21 | 大立光電股份有限公司 | Optical lens assembly, image capturing unit and electronic device |
| WO2022160119A1 (en) * | 2021-01-27 | 2022-08-04 | 欧菲光集团股份有限公司 | Optical system, photographing module, and electronic device |
| CN113514932B (en) * | 2021-04-20 | 2023-05-02 | 浙江舜宇光学有限公司 | Optical imaging lens |
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| CN101738707A (en) * | 2008-11-10 | 2010-06-16 | 大立光电股份有限公司 | Four-lens type photography optical lens group |
| CN106154493A (en) * | 2016-03-18 | 2016-11-23 | 玉晶光电(厦门)有限公司 | Optical glass group |
| CN106154516A (en) * | 2016-03-18 | 2016-11-23 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN208172353U (en) * | 2018-04-04 | 2018-11-30 | 浙江舜宇光学有限公司 | Optical imaging lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738707A (en) * | 2008-11-10 | 2010-06-16 | 大立光电股份有限公司 | Four-lens type photography optical lens group |
| CN106154493A (en) * | 2016-03-18 | 2016-11-23 | 玉晶光电(厦门)有限公司 | Optical glass group |
| CN106154516A (en) * | 2016-03-18 | 2016-11-23 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN208172353U (en) * | 2018-04-04 | 2018-11-30 | 浙江舜宇光学有限公司 | Optical imaging lens |
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