CN109656004A - Optical imaging lens group - Google Patents
Optical imaging lens group Download PDFInfo
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- CN109656004A CN109656004A CN201910160033.5A CN201910160033A CN109656004A CN 109656004 A CN109656004 A CN 109656004A CN 201910160033 A CN201910160033 A CN 201910160033A CN 109656004 A CN109656004 A CN 109656004A
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 143
- 210000001747 pupil Anatomy 0.000 claims description 5
- 238000009738 saturating Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 44
- 238000003384 imaging method Methods 0.000 description 36
- 239000000571 coke Substances 0.000 description 27
- 201000009310 astigmatism Diseases 0.000 description 16
- 238000010586 diagram Methods 0.000 description 16
- 238000005452 bending Methods 0.000 description 12
- 230000004075 alteration Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 206010010071 Coma Diseases 0.000 description 2
- 206010073261 Ovarian theca cell tumour Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000001644 thecoma Diseases 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 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
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- G02B13/001—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
- G02B13/0035—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 three 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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Abstract
This application discloses a kind of optical imaging lens groups, sequentially include: the first lens group, the second lens group and the third lens group by object side to image side, wherein the first lens group includes first lens with focal power；Second lens group includes reflection subassembly, and incident ray passes through the first lens group along the direction of Y-axis and enters the second lens group, enters the third lens group along the direction of X-axis via after the reflection subassembly reflection in the second lens group, wherein Y-axis is substantially vertical with X-axis；The third lens group sequentially includes: the third lens, the 4th lens and at least one subsequent lens with focal power by reflection subassembly to image side along X-axis.The effective focal length f3 of the third lens and the effective focal length f4 of the 4th lens meet 1.0 < f3/f4 < 2.0.
Description
Technical field
This application involves a kind of optical imaging lens groups, include reflection subassembly and at least four more particularly, to one kind
The optical imaging lens group of lens.
Background technique
With flourishing for science and technology, charge coupled device (Charge-coupled Device, CCD) and complementary
The property of metal-oxide semiconductor (MOS) (Complementary Metal-oxide Semiconductor, CMOS) imaging sensor
It can be continuously improved, size is gradually reduced, and corresponding optical imaging lens should also meet high pixel and compact-sized.
In previous design, in order to meet the compactedness of optical imaging lens, need to be reduced as far as optical imaging lens
The number of lenses of head makes center thickness of the lens on optical axis thinning as far as possible.The reduction of number of shots will cause design certainly
By the shortage spent, so that being difficult to meet the needs of market is to high imaging performance.Optical mirror slip lens thickness is excessively thin, exacerbates
Mirror forms difficulty, while be easy to causeing optical system too sensitive, and sensitive optical system is in process by extraneous factor
Influence serious, not good for system stability and processing yield.
Summary of the invention
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The optical imaging lens group of at least one above-mentioned disadvantage.
On the one hand, this application provides such a optical imaging lens groups, and the optical imaging lens group is by object side to picture
Side sequentially includes: the first lens group, the second lens group and the third lens group.Wherein, the first lens group may include with focal power
The first lens.Second lens group includes reflection subassembly, and incident ray passes through the first lens group along the direction of Y-axis and enters second
Lens group enters the third lens group along the direction of X-axis via after the reflection subassembly reflection in the second lens group, wherein Y-axis and X
Axis is substantially vertical.The third lens group sequentially includes: the third lens with focal power, the 4th by reflection subassembly to image side along X-axis
Lens and at least one subsequent lens.
In one embodiment, the effective focal length f3 of the third lens and the effective focal length f4 of the 4th lens can meet 1.0
< f3/f4 < 2.0.
In one embodiment, the maximum angle of half field-of view Semi-FOV of optical imaging lens group can meet Semi-FOV >=
38°。
In one embodiment, at least one subsequent lens includes the 5th lens, the effective focal length f1 of the first lens group
1.0 < f1/f5 < 1.5 can be met with the effective focal length f5 of the 5th lens.
In one embodiment, the curvature of the object side of the radius of curvature R 6 and the first lens of the image side surface of the third lens
Radius R1 can meet 1.0 R6/R1≤3.0 <.
In one embodiment, at least one subsequent lens includes the 5th lens, the third lens, the 4th lens and the 5th
The combined focal length f345 of lens and total effective focal length f of optical imaging lens group can meet 1.0 f345/f≤2.0 <.
In one embodiment, the curvature of the object side of the radius of curvature R 2 and the third lens of the image side surface of the first lens
Radius R5 can meet 1.0 < R2/R5 < 2.0.
In one embodiment, the curvature of the object side of the radius of curvature R 8 and the 4th lens of the image side surface of the 4th lens
Radius R7 can meet -2.0 < R8/R7 < -1.0.
In one embodiment, at least one subsequent lens includes the 5th lens, and reflecting element and the third lens are in X-axis
On spacing distance T45, the first lens and reflecting element in X-axis of spacing distance T23, the 4th lens and the 5th lens in Y
The spacing distance T34 of spacing distance T12 and the third lens and the 4th lens in X-axis on axis can meet 0 < (T23+
T45)/(T12+T34)≤1.0。
In one embodiment, at least one subsequent lens includes the 5th lens, and center of first lens in Y-axis is thick
The center thickness CT4 and the 5th lens of center thickness CT3, the 4th lens in X-axis of CT1, the third lens in X-axis is spent to exist
Center thickness CT5 in X-axis can meet 1.0≤(CT1+CT3)/(CT4+CT5) < 3.5.
In one embodiment, total effective focal length f of optical imaging lens group and the entrance pupil of optical imaging lens group are straight
Diameter EPD can meet f/EPD < 2.2.
The application uses multi-disc lens, and including reflecting element, by each power of lens of reasonable distribution, face type,
Spacing etc. on axis between the center thickness of each lens and each lens so that above-mentioned optical imaging lens group have ultrathin,
At least one beneficial effect such as big field angle, high imaging quality.
Detailed description of the invention
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent
Point will be apparent.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 1, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 2, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 3, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the optical imaging lens group of embodiment 4, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 5, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 6, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 7, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imaging lens group according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axis of the optical imaging lens group of embodiment 8, astigmatism curve,
Distortion curve and ratio chromatism, curve.
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers
Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy
Sign distinguishes, without indicating any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position
When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is concave surface near axis area is less than.Each lens are known as this thoroughly near the surface of subject
The object side of mirror, each lens are known as the image side surface of the lens near the surface of imaging surface.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
It indicates there is stated feature, element and/or component when using in bright book, but does not preclude the presence or addition of one or more
Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of column feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this
When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative "
It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
Can sequentially include: by object side to image side along optical axis according to the optical imaging lens group of the application illustrative embodiments
First lens group, the second lens group and the third lens group.In the exemplary embodiment, any phase in optical imaging lens group
Can have airspace between adjacent two lens.
First lens group may include at least a piece of lens with focal power.Be arranged includes at least a piece of with focal power
First lens group of lens, is conducive to the increase of field angle, while being also beneficial to the incidence angle of compression stop position light, reduces
Pupil aberration improves image quality.
Second lens group may include reflecting element, which can be arranged with any desired angle to bend light
Road.Reflecting element may be, for example, plane mirror, reflecting prism etc., but not limited to this.Reflecting element may be arranged such that incidence
Light propagates (e.g., the X-axis in Fig. 1) (alternatively, making along vertical optical axis by switching to along horizontal optical axis (e.g., the Y-axis in Fig. 1) propagation
Incident light along vertical optical axis propagation by switching to along horizontal optical axis).It is reversed that setting reflecting element can change optical path, so that whole
The structure of a camera lens is more compact, and then achievees the purpose that shorten imaging lens group overall length (longitudinal overall length).
The third lens group may include the lens that at least three pieces have focal power.Be arranged includes that at least three pieces have focal power
The third lens group and each power of lens of reasonable distribution of lens, are advantageously implemented the good of the big field angle camera lens of compact type
Good image quality and loose processing characteristics.
Referring to Fig. 1, the first lens group may include the first lens E1 with negative power, and object side S1 can be concave surface,
Image side surface S2 can be concave surface.Second lens group may include reflecting element E2, and reflecting element E2 includes plane of incidence S3 and exit facet S4.
Reflecting element E2 is arranged after the first lens E1, so that default degree (such as, but not limited to 90 occurs for the input path of camera lens
Degree) deviation.The third lens group may include along optical axis by the third lens E3 of object side to image side sequential, the 4th lens E4 and
At least one subsequent lens.The third lens E3 can have positive light coke, and object side S5 can be convex surface, and image side surface S6 can be convex
Face.4th lens E4 can have positive light coke, and object side S7 can be convex surface, and image side surface S8 can be convex surface.
When the light from object enters reflecting element via the first lens E1, and by plane of incidence S3 along the direction of Y-axis
When E2, can by reflecting surface be totally reflected turn to reflecting element E2 exit facet S4 and along the direction of X-axis be emitted, then sequentially via
The third lens E3, the 4th lens E4, at least one subsequent lens, and be most imaged on imaging surface finally.Y-axis and X-axis are angled, example
Such as, but not limited to, Y-axis can be substantially vertical with X-axis.
In the exemplary embodiment, the maximum angle of half field-of view Semi-FOV of optical imaging lens group can meet Semi-FOV
≥38°.More specifically, Semi-FOV can further meet 38.7 °≤Semi-FOV≤42.9 °.The big view of optical imaging lens
Rink corner can guarantee that camera lens range of observation is larger, and the visual field is larger.
In the exemplary embodiment, at least one subsequent lens includes the 5th lens, the effective focal length of the first lens group
The effective focal length f5 of f1 and the 5th lens can meet 1.0 < f1/f5 < 1.5.More specifically, f1 and f5 can further meet 1.02
≤f1/f5≤1.35.By reasonably constraining the ratio of the effective focal length of the first lens and the 5th lens, can reasonably control
The contribution amount of the curvature of field of two group members, so that its balance is in reasonable horizontality.
In the exemplary embodiment, the effective focal length f3 and the effective focal length f4 of the 4th lens of the third lens can meet
1.0 < f3/f4 < 2.0.More specifically, f3 and f4 can further meet 1.35≤f3/f4≤1.95.By constraining the third lens
Focal power and the 4th power of lens ratio, can reasonably control the spherical aberration contribution amount of two optics group members reasonable
In level, so that visual field obtains good image quality on axis.
In the exemplary embodiment, the song of the object side of the radius of curvature R 6 and the first lens of the image side surface of the third lens
Rate radius R1 can meet 1.0 R6/R1≤3.0 <.More specifically, R6 and R1 can further meet 1.39≤R6/R1≤2.67.It is logical
The ratio range of the radius of curvature of the radius of curvature and the third lens image side surface of Planar Mechanisms the first lens object side rationally controls
The first, the coma contribution rate of the third lens, and then can be good at coma caused by balancing front-ends group member, obtain it is good at
Image quality amount.
In the exemplary embodiment, at least one subsequent lens includes the 5th lens, the third lens, the 4th lens and the
The combined focal length f345 of five lens and total effective focal length f of optical imaging lens group can meet 1.0 f345/f≤2.0 <.More
Body, f345 and f can further meet 1.28≤f345/f≤1.78.Thoroughly by control the third lens, the 4th lens and the 5th
The combined focal length range of mirror, can reasonably control the contribution range of focal power, while reasonably control this three pieces lens just
The contribution rate of spherical aberration enables this three pieces lens reasonably to balance the negative focal power of the first lens.
In the exemplary embodiment, the entrance pupil of total the effective focal length f and optical imaging lens group of optical imaging lens group
Diameter EPD can meet f/EPD < 2.2.More specifically, f and EPD can further meet 2.0≤f/EPD≤2.1, for example, f/EPD
=2.08.By controlling the effective focal length of optical imaging lens and the ratio of Entry pupil diameters, so that the light passing amount of optical system exists
In zone of reasonableness.
In the exemplary embodiment, the song of the object side of the radius of curvature R 2 and the third lens of the image side surface of the first lens
Rate radius R5 can meet 1.0 < R2/R5 < 2.0.More specifically, R2 and R5 can further meet 1.33≤R2/R5≤1.70.It is logical
The ratio range of the radius of curvature of the radius of curvature and the third lens object side of Planar Mechanisms the first lens image side surface rationally controls
The coma contribution rate of first lens and the third lens, and then can be good at coma caused by balancing front-ends group member, it obtains good
Good image quality.
In the exemplary embodiment, the song of the object side of the radius of curvature R 8 and the 4th lens of the image side surface of the 4th lens
Rate radius R7 can meet -2.0 < R8/R7 < -1.0.More specifically, R8 and R7 can further meet -1.78≤R8/R7≤-
1.20.By controlling the radius of curvature of the 4th lens image side surface, light can be regulated and controled in the standoff height on the 4th surface, in turn
Control the bore of last one side.
In the exemplary embodiment, at least one subsequent lens includes the 5th lens, and optical imaging lens group can meet
0 < of conditional (T23+T45)/(T12+T34)≤1.0, wherein T23 is the interval of reflecting element and the third lens on optical axis
Distance, T45 are the spacing distance of the 4th lens and the 5th lens on optical axis, and T12 is the first lens and reflecting element in optical axis
On spacing distance, T34 be the spacing distance of the third lens and the 4th lens on optical axis.More specifically, T23, T45, T12 and
T34 can further meet 0.42≤(T23+T45)/(T12+T34)≤1.00.By rationally controlling each optical element on optical axis
Airspace, being capable of operative constraint reflecting element, the third lens, the shape of the 4th lens and the 5th lens, additionally it is possible to rationally
Control its balance after residual distortion range so that optical imaging lens group have good distortion performance.
In the exemplary embodiment, at least one subsequent lens includes the 5th lens, and optical imaging lens group can meet
Conditional 1.0≤(CT1+CT3)/(CT4+CT5) < 3.5, wherein CT1 is center thickness of first lens on optical axis, CT3
The center thickness for being the third lens on optical axis, CT4 are center thickness of the 4th lens on optical axis, and CT5 is that the 5th lens exist
Center thickness on optical axis.More specifically, CT1, CT3, CT4 and CT5 can further meet 1.03≤(CT1+CT3)/(CT4+
CT5)≤3.05.Pass through the center thickness of control the first lens and the third lens and the 4th lens and the 5th lens on optical axis
Ratio range, can the first lens of operative constraint, the third lens, the shape and thickness of the 4th lens and the 5th lens so that
Lens thickness is uniform, convenient for molding and processing.
In the exemplary embodiment, above-mentioned optical imaging lens group may also include at least one diaphragm.Diaphragm is settable
Between the third lens and the 4th lens.Optionally, above-mentioned optical imaging lens group may also include for correcting color error ratio
Optical filter and/or for protect be located at imaging surface on photosensitive element protection glass.
The invention proposes a kind of with big field angle, the optical imaging lens group of high-quality, wherein containing an energy
By incident light by along horizontal optical axis, switching to the reflection subassembly along vertical optical axis propagation.By the way that one is added before reflection subassembly
Piece has the lens of focal power, so that optical imaging lens maintain big field angle characteristic, while being changed by the way that reflection subassembly is added
Optical path direction achievees the purpose that shorten imaging lens group overall length in turn.According to the optical imaging lens of the above embodiment of the application
Multi-disc eyeglass, such as described above four to seven can be used in head group.By each power of lens of reasonable distribution, face type, each
Spacing etc. on axis between the center thickness of lens and each lens can effectively reduce the volume of imaging lens, reduce imaging
The susceptibility of lens group and the machinability for improving imaging lens group, so that optical imaging lens group is more advantageous to production and processing simultaneously
And it is applicable to portable electronic product.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror, that is, first thoroughly
Mirror, the third lens, the 4th lens and each lens at least one subsequent lens object side and image side surface at least one
A is aspherical mirror.The characteristics of non-spherical lens is: from lens centre to lens perimeter, curvature is consecutive variations.With from
Lens centre has the spherical lens of constant curvature different to lens perimeter, and non-spherical lens has more preferably radius of curvature special
Property, have the advantages that improve and distorts aberration and improvement astigmatic image error.After non-spherical lens, can eliminate as much as possible at
As when the aberration that occurs, so as to improve image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting optical imaging lens group can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking four to seven lens as an example in embodiments, which is not limited to wrap
Include four to seven lens.If desired, the optical imaging lens group 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 group of the embodiment of the present application 1.Fig. 1 shows basis
The structural schematic diagram of the optical imaging lens group of the embodiment of the present application 1.
As shown in Figure 1, optical imaging lens group sequentially includes: the first lens E1, reflection subassembly E2, by object side to image side
Three lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is convex surface.Optical filter E6 has object side S11 and image side surface S12.From object
Light sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 1 shows the basic parameter table of the optical imaging lens group of embodiment 1, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm).
Table 1
Wherein, f is total effective focal length of optical imaging lens group, and ImgH is effective pixel area diagonal line length on imaging surface
Half, Semi-FOV be optical imaging lens group maximum angle of half field-of view.
In embodiment 1, any one in the first lens E1, the third lens E3, the 4th lens E4 and the 5th lens E5
The object side of lens and image side surface be it is aspherical, the face type x of each non-spherical lens is available but is not limited to following aspherical public affairs
Formula 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, which gives, can be used for each aspherical mirror S1-S2, S5-S10 in embodiment 1
High-order 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 group of embodiment 1, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Fig. 2 B shows the astigmatism curve of the optical imaging lens group of embodiment 1, indicates son
Noon curvature of the image and sagittal image surface bending.Fig. 2 C shows the distortion curve of the optical imaging lens group of embodiment 1, indicates not
The corresponding distortion sizes values with image height.Fig. 2 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 1, indicates
Light via the different image heights after camera lens on imaging surface deviation.A to Fig. 2 D is it is found that given by embodiment 1 according to fig. 2
Optical imaging lens group can be realized good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the optical imaging lens group of the embodiment of the present application 2.The present embodiment and with
In lower embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application
The structural schematic diagram of 2 optical imaging lens group.
As shown in figure 3, optical imaging lens group sequentially includes: the first lens E1, reflection subassembly E2, by object side to image side
Three lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is convex surface.6th lens E6 has negative power, and object side S11 is convex surface, as
Side S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 extremely
S14 is simultaneously ultimately imaged on imaging surface S15.
Table 3 shows the basic parameter table of the optical imaging lens group of embodiment 2, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm).Table 4 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 3
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.4216E-02 | -1.0440E-03 | -1.1072E-04 | 6.1185E-05 | -1.1304E-05 | 1.1865E-06 | -7.3905E-08 | 2.5468E-09 | -3.7463E-11 |
| S2 | 1.2730E-02 | 8.8567E-04 | -1.1184E-03 | 3.5060E-04 | -3.4040E-05 | -8.8988E-06 | 3.0424E-06 | -3.4500E-07 | 1.4172E-08 |
| S5 | 5.3926E-03 | -9.4830E-04 | -5.8883E-04 | 6.6331E-04 | -3.2168E-04 | 9.3674E-05 | -1.5922E-05 | 1.4716E-06 | -5.5301E-08 |
| S6 | 1.3990E-03 | -4.8171E-04 | 2.4338E-04 | -1.9360E-04 | 1.7617E-04 | -8.6431E-05 | 2.4298E-05 | -3.6163E-06 | 2.2669E-07 |
| S7 | 2.3055E-02 | -7.6313E-03 | 5.5190E-03 | -4.1759E-03 | 2.1027E-03 | -6.7338E-04 | 1.3049E-04 | -1.3713E-05 | 5.9100E-07 |
| S8 | 1.5506E-02 | -8.4350E-03 | 7.2141E-03 | -8.3473E-03 | 5.6395E-03 | -2.2031E-03 | 5.0249E-04 | -6.2078E-05 | 3.1950E-06 |
| S9 | 6.1005E-03 | 6.5811E-02 | -1.0620E-01 | 9.8785E-02 | -6.2564E-02 | 2.6979E-02 | -7.5175E-03 | 1.2134E-03 | -8.5817E-05 |
| S10 | 4.7660E-02 | 4.5832E-02 | -9.2967E-02 | 9.6539E-02 | -6.6171E-02 | 3.0490E-02 | -9.0364E-03 | 1.5485E-03 | -1.1608E-04 |
| S11 | 1.2594E-02 | -1.5347E-02 | 8.4379E-03 | -3.8150E-03 | 1.3443E-03 | -3.3842E-04 | 5.6219E-05 | -5.4610E-06 | 2.3385E-07 |
| S12 | 8.7623E-04 | -3.9422E-03 | 2.4206E-03 | -1.4758E-03 | 6.4763E-04 | -1.7982E-04 | 3.0114E-05 | -2.7784E-06 | 1.0860E-07 |
Table 4
Fig. 4 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 2, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Fig. 4 B shows the astigmatism curve of the optical imaging lens group of embodiment 2, indicates son
Noon curvature of the image and sagittal image surface bending.Fig. 4 C shows the distortion curve of the optical imaging lens group of embodiment 2, indicates not
The corresponding distortion sizes values with image height.Fig. 4 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 2, indicates
Light via the different image heights after camera lens on imaging surface deviation.According to Fig. 4 A to Fig. 4 D it is found that given by embodiment 2
Optical imaging lens group can be realized good image quality.
Embodiment 3
The optical imaging lens group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 3.
As shown in figure 5, optical imaging lens group sequentially includes: the first lens E1, reflection subassembly E2, by object side to image side
Three lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, optical filter E7 and imaging surface S15.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, and object side S11 is convex surface, as
Side S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.Light from object sequentially passes through each surface S1 extremely
S14 is simultaneously ultimately imaged on imaging surface S15.
Table 5 shows the basic parameter table of the optical imaging lens group of embodiment 3, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm).Table 6 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 5
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.5072E-02 | -1.7659E-03 | 1.9950E-04 | -1.7747E-05 | 1.1704E-06 | -5.3910E-08 | 1.6291E-09 | -2.8902E-11 | 2.2862E-13 |
| S2 | 1.4452E-02 | -2.8903E-04 | -4.8095E-04 | 2.3588E-04 | -6.6136E-05 | 1.1780E-05 | -1.3071E-06 | 8.2343E-08 | -2.2576E-09 |
| S5 | 8.3185E-03 | -2.3318E-03 | 3.3989E-04 | 1.3022E-05 | -5.4158E-05 | 2.3829E-05 | -5.1240E-06 | 5.6125E-07 | -2.3667E-08 |
| S6 | 4.9955E-03 | -8.5251E-04 | 2.2008E-04 | -1.4141E-04 | 6.3413E-05 | -1.6609E-05 | 2.6897E-06 | -2.5686E-07 | 1.2693E-08 |
| S7 | 2.9782E-02 | -1.9900E-03 | -1.6632E-04 | -7.3753E-03 | 1.5439E-02 | -1.5130E-02 | 8.2051E-03 | -2.3707E-03 | 2.8870E-04 |
| S8 | 3.5551E-02 | -1.7501E-02 | -3.0198E-02 | 7.1154E-02 | -7.7968E-02 | 5.2031E-02 | -2.1065E-02 | 4.7236E-03 | -4.4350E-04 |
| S9 | 1.1583E-01 | -1.5619E-01 | 1.1206E-01 | -1.3030E-02 | -6.4928E-02 | 7.6041E-02 | -4.2413E-02 | 1.2273E-02 | -1.4709E-03 |
| S10 | 1.3823E-01 | -1.4562E-01 | 1.0171E-01 | 1.2850E-02 | -1.0198E-01 | 1.0830E-01 | -5.9467E-02 | 1.7284E-02 | -2.0985E-03 |
| S11 | -2.8731E-03 | -5.6622E-03 | 1.9781E-03 | 5.3786E-03 | -7.1226E-03 | 4.4935E-03 | -1.6222E-03 | 3.1884E-04 | -2.6464E-05 |
| S12 | 1.4651E-03 | -3.4732E-03 | 4.3330E-03 | -3.9408E-03 | 2.3193E-03 | -8.5378E-04 | 1.9079E-04 | -2.3686E-05 | 1.2544E-06 |
Table 6
Fig. 6 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 3, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Fig. 6 B shows the astigmatism curve of the optical imaging lens group of embodiment 3, indicates son
Noon curvature of the image and sagittal image surface bending.Fig. 6 C shows the distortion curve of the optical imaging lens group of embodiment 3, indicates not
The corresponding distortion sizes values with image height.Fig. 6 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 3, indicates
Light via the different image heights after camera lens on imaging surface deviation.According to Fig. 6 A to Fig. 6 D it is found that given by embodiment 3
Optical imaging lens group can be realized good image quality.
Embodiment 4
The optical imaging lens group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 4.
As shown in fig. 7, optical imaging lens group sequentially includes: the first lens E1, reflection subassembly E2, by object side to image side
Three lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7, optical filter E8 and imaging surface
S17。
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is convex surface.6th lens E6 has negative power, and object side S11 is convex surface, as
Side S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, and image side surface S14 is concave surface.Optical filter
E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 to S16 and is ultimately imaged and is being imaged
On the S17 of face.
Table 7 shows the basic parameter table of the optical imaging lens group of embodiment 4, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm).Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 7
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.3374E-02 | -1.5113E-03 | 1.6721E-04 | -1.4775E-05 | 9.8796E-07 | -4.6712E-08 | 1.4634E-09 | -2.7098E-11 | 2.2476E-13 |
| S2 | 1.2730E-02 | -7.9423E-04 | -4.4932E-05 | 2.9245E-05 | -6.3157E-06 | 8.7942E-07 | -9.1088E-08 | 6.6036E-09 | -2.3464E-10 |
| S5 | 6.0500E-03 | -1.2115E-03 | 1.2732E-04 | 2.7772E-05 | -2.3813E-05 | 7.6273E-06 | -1.2752E-06 | 1.1259E-07 | -3.8112E-09 |
| S6 | 2.9383E-03 | -5.0385E-04 | 4.3369E-04 | -3.1812E-04 | 1.5087E-04 | -4.4099E-05 | 7.9156E-06 | -7.9704E-07 | 3.5079E-08 |
| S7 | 2.3297E-02 | -3.8176E-03 | 3.0196E-03 | -8.0876E-03 | 1.0922E-02 | -8.1278E-03 | 3.4350E-03 | -7.7906E-04 | 7.3850E-05 |
| S8 | 2.5953E-02 | -7.9660E-03 | -2.6403E-02 | 4.6743E-02 | -4.0150E-02 | 2.0776E-02 | -6.5683E-03 | 1.1702E-03 | -8.9993E-05 |
| S9 | 6.3628E-02 | -3.8770E-02 | -3.7244E-02 | 1.1016E-01 | -1.1700E-01 | 7.1255E-02 | -2.6060E-02 | 5.3348E-03 | -4.7077E-04 |
| S10 | 9.8843E-02 | -5.4479E-02 | -1.8225E-02 | 8.8776E-02 | -9.9926E-02 | 6.2812E-02 | -2.3683E-02 | 5.0154E-03 | -4.6004E-04 |
| S11 | 1.5382E-02 | -3.7453E-02 | 2.6619E-02 | -1.0998E-02 | 3.0589E-03 | -5.1361E-04 | 3.0370E-05 | 5.0027E-06 | -8.2002E-07 |
| S12 | 2.6273E-02 | -5.8003E-02 | 4.3760E-02 | -2.0269E-02 | 7.1409E-03 | -2.0217E-03 | 4.2290E-04 | -5.2405E-05 | 2.5684E-06 |
| S13 | 8.4801E-03 | -1.8192E-02 | 1.2404E-02 | -5.0117E-03 | 1.6810E-03 | -5.3486E-04 | 1.2493E-04 | -1.6247E-05 | 8.6148E-07 |
| S14 | -3.2290E-03 | -1.0935E-03 | 2.7031E-03 | -1.8699E-03 | 8.8265E-04 | -3.0652E-04 | 6.7236E-05 | -8.0298E-06 | 3.9839E-07 |
Table 8
Fig. 8 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 4, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Fig. 8 B shows the astigmatism curve of the optical imaging lens group of embodiment 4, indicates son
Noon curvature of the image and sagittal image surface bending.Fig. 8 C shows the distortion curve of the optical imaging lens group of embodiment 4, indicates not
The corresponding distortion sizes values with image height.Fig. 8 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 4, indicates
Light via the different image heights after camera lens on imaging surface deviation.According to Fig. 8 A to Fig. 8 D it is found that given by embodiment 4
Optical imaging lens group can be realized good image quality.
Embodiment 5
The optical imaging lens group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows root
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 5.
As shown in figure 9, optical imaging lens group sequentially includes: the first lens E1, reflection subassembly E2, by object side to image side
Three lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7, optical filter E8 and imaging surface
S17。
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is concave surface.6th lens E6 has negative power, and object side S11 is convex surface, as
Side S12 is concave surface.7th lens E7 has negative power, and object side S13 is convex surface, and image side surface S14 is concave surface.Optical filter
E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 to S16 and is ultimately imaged and is being imaged
On the S17 of face.
Table 9 shows the basic parameter table of the optical imaging lens group of embodiment 5, wherein radius of curvature, thickness and focal length
Unit be millimeter (mm).Table 10 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 9
Table 10
Figure 10 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 5, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Figure 10 B shows the astigmatism curve of the optical imaging lens group of embodiment 5, indicates
Meridianal image surface bending and sagittal image surface bending.Figure 10 C shows the distortion curve of the optical imaging lens group of embodiment 5, table
Show the corresponding distortion sizes values of different image heights.Figure 10 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 5,
It indicates light via the deviation of the different image heights after camera lens on imaging surface.According to Figure 10 A to Figure 10 D it is found that embodiment 5
Given optical imaging lens group can be realized good image quality.
Embodiment 6
The optical imaging lens group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 6.
As shown in figure 11, optical imaging lens group by object side to image side sequentially include: the first lens E1, reflection subassembly E2,
The third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7, optical filter E8 and imaging
Face S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, and object side S11 is convex surface, as
Side S12 is concave surface.7th lens E7 has negative power, and object side S13 is convex surface, and image side surface S14 is concave surface.Optical filter
E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 to S16 and is ultimately imaged and is being imaged
On the S17 of face.
Table 11 shows the basic parameter table of the optical imaging lens group of embodiment 6, wherein radius of curvature, thickness and coke
Away from unit be millimeter (mm).Table 12 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.2093E-02 | -1.2679E-03 | 1.3159E-04 | -1.0870E-05 | 6.6468E-07 | -2.8223E-08 | 7.8103E-10 | -1.2612E-11 | 9.0253E-14 |
| S2 | 1.1631E-02 | -2.7102E-04 | -2.9424E-04 | 1.2931E-04 | -3.0638E-05 | 4.4353E-06 | -3.9019E-07 | 1.9210E-08 | -4.0764E-10 |
| S5 | 8.2294E-03 | -2.1004E-03 | 2.6563E-04 | 8.0705E-05 | -8.8145E-05 | 3.2712E-05 | -6.4357E-06 | 6.5741E-07 | -2.6866E-08 |
| S6 | 5.6345E-03 | -9.1723E-04 | 3.3629E-04 | -1.6005E-04 | 4.4639E-05 | -5.8361E-06 | -8.3211E-09 | 8.1392E-08 | -5.4435E-09 |
| S7 | 3.6802E-02 | -5.1589E-03 | -1.5197E-03 | -3.3710E-03 | 1.3470E-02 | -1.6649E-02 | 1.0120E-02 | -3.0976E-03 | 3.7962E-04 |
| S8 | 6.5864E-02 | -1.1582E-01 | 1.1531E-01 | -5.0684E-02 | -1.8654E-02 | 3.7445E-02 | -2.0737E-02 | 5.3326E-03 | -5.3776E-04 |
| S9 | 1.5456E-01 | -3.8338E-01 | 5.7674E-01 | -5.5201E-01 | 3.3943E-01 | -1.2617E-01 | 2.3708E-02 | -7.7091E-04 | -2.7003E-04 |
| S10 | 1.6216E-01 | -3.9563E-01 | 6.3903E-01 | -6.3155E-01 | 3.9737E-01 | -1.4996E-01 | 2.8545E-02 | -1.0619E-03 | -2.9741E-04 |
| S11 | 2.9616E-02 | -1.1794E-01 | 1.7281E-01 | -1.4253E-01 | 6.8221E-02 | -1.4808E-02 | -9.8000E-04 | 1.0457E-03 | -1.3445E-04 |
| S12 | -1.5686E-02 | -1.1339E-04 | 3.0970E-03 | 1.0892E-02 | -1.7960E-02 | 1.2683E-02 | -4.6296E-03 | 8.3012E-04 | -5.6414E-05 |
| S13 | -2.8281E-02 | 7.3858E-03 | -5.5407E-03 | 7.5944E-03 | -5.4493E-03 | 2.2654E-03 | -5.4173E-04 | 6.8414E-05 | -3.5186E-06 |
| S14 | -1.7327E-02 | -6.5964E-04 | 4.9671E-03 | -4.0925E-03 | 2.0008E-03 | -6.1510E-04 | 1.1494E-04 | -1.1894E-05 | 5.2216E-07 |
Table 12
Figure 12 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 6, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Figure 12 B shows the astigmatism curve of the optical imaging lens group of embodiment 6, indicates
Meridianal image surface bending and sagittal image surface bending.Figure 12 C shows the distortion curve of the optical imaging lens group of embodiment 6, table
Show the corresponding distortion sizes values of different image heights.Figure 12 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 6,
It indicates light via the deviation of the different image heights after camera lens on imaging surface.According to Figure 12 A to Figure 12 D it is found that embodiment 6
Given optical imaging lens group can be realized good image quality.
Embodiment 7
The optical imaging lens group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 7.
As shown in figure 13, optical imaging lens group by object side to image side sequentially include: the first lens E1, reflection subassembly E2,
The third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7, optical filter E8 and imaging
Face S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, and object side S11 is convex surface, as
Side S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, and image side surface S14 is concave surface.Optical filter
E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 to S16 and is ultimately imaged and is being imaged
On the S17 of face.
Table 13 shows the basic parameter table of the optical imaging lens group of embodiment 7, wherein radius of curvature, thickness and coke
Away from unit be millimeter (mm).Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 13
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.3732E-02 | -1.3682E-03 | 1.2043E-04 | -7.6175E-06 | 3.2365E-07 | -8.2232E-09 | 9.3997E-11 | 3.2749E-13 | -1.2984E-14 |
| S2 | 1.4323E-02 | -9.3123E-04 | 4.5501E-04 | -2.7193E-04 | 8.9065E-05 | -1.6713E-05 | 1.8193E-06 | -1.0706E-07 | 2.6388E-09 |
| S5 | 9.2315E-03 | -2.2833E-03 | 3.0918E-04 | -2.8324E-05 | -2.3305E-05 | 1.2967E-05 | -3.2861E-06 | 4.3158E-07 | -2.1180E-08 |
| S6 | 7.2489E-03 | -1.1412E-03 | 2.2173E-04 | -1.9459E-04 | 1.0797E-04 | -3.5612E-05 | 7.0073E-06 | -7.5254E-07 | 3.5990E-08 |
| S7 | 2.8608E-02 | -1.7134E-03 | 1.8139E-04 | -6.4766E-03 | 1.2871E-02 | -1.1974E-02 | 6.1438E-03 | -1.6733E-03 | 1.9220E-04 |
| S8 | 3.0099E-02 | -5.7197E-03 | -2.9535E-02 | 5.3512E-02 | -5.2266E-02 | 3.1362E-02 | -1.1193E-02 | 2.1364E-03 | -1.5838E-04 |
| S9 | 9.2061E-02 | -8.0807E-02 | 5.3611E-03 | 8.5606E-02 | -1.3285E-01 | 1.0672E-01 | -4.9376E-02 | 1.2415E-02 | -1.3152E-03 |
| S10 | 1.0443E-01 | -5.8969E-02 | -2.6352E-02 | 1.3639E-01 | -1.8605E-01 | 1.4119E-01 | -6.2721E-02 | 1.5227E-02 | -1.5632E-03 |
| S11 | 1.7052E-03 | 1.7720E-03 | -2.0264E-02 | 4.1642E-02 | -4.4005E-02 | 2.7118E-02 | -9.7539E-03 | 1.8932E-03 | -1.5308E-04 |
| S12 | 7.8524E-04 | 4.6969E-03 | -1.7212E-02 | 2.2332E-02 | -1.5488E-02 | 6.2718E-03 | -1.4481E-03 | 1.6711E-04 | -6.4209E-06 |
| S13 | 2.1722E-04 | 4.5861E-03 | -1.1949E-02 | 1.2465E-02 | -7.0604E-03 | 2.3705E-03 | -4.7289E-04 | 5.1879E-05 | -2.4116E-06 |
| S14 | 2.8386E-04 | -9.9581E-04 | 2.3772E-03 | -2.8790E-03 | 1.9115E-03 | -7.3620E-04 | 1.6402E-04 | -1.9587E-05 | 9.6918E-07 |
Table 14
Figure 14 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 7, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Figure 14 B shows the astigmatism curve of the optical imaging lens group of embodiment 7, indicates
Meridianal image surface bending and sagittal image surface bending.Figure 14 C shows the distortion curve of the optical imaging lens group of embodiment 7, table
Show the corresponding distortion sizes values of different image heights.Figure 14 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 7,
It indicates light via the deviation of the different image heights after camera lens on imaging surface.According to Figure 14 A to Figure 14 D it is found that embodiment 7
Given optical imaging lens group can be realized good image quality.
Embodiment 8
The optical imaging lens group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 is shown
According to the structural schematic diagram of the optical imaging lens group of the embodiment of the present application 8.
As shown in figure 15, optical imaging lens group by object side to image side sequentially include: the first lens E1, reflection subassembly E2,
The third lens E3, diaphragm STO, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7, the 8th lens E8, filter
Mating plate E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Reflection subassembly E2 has
Plane of incidence S3 and exit facet S4.The third lens E3 has positive light coke, and object side S5 is convex surface, and image side surface S6 is convex surface.The
Four lens E4 have positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.5th lens E5 has negative power,
Its object side S9 is concave surface, and image side surface S10 is convex surface.6th lens E6 has negative power, and object side S11 is convex surface, as
Side S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, and image side surface S14 is convex surface.8th thoroughly
Mirror E8 has negative power, and object side S15 is concave surface, and image side surface S16 is convex surface.Optical filter E9 has object side S17 and picture
Side S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged on imaging surface S19.
Table 15 shows the basic parameter table of the optical imaging lens group of embodiment 8, wherein radius of curvature, thickness and coke
Away from unit be millimeter (mm).Table 16 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 15
Table 16
Figure 16 A shows chromatic curve on the axis of the optical imaging lens group of embodiment 8, indicates the light of different wave length
Deviate via the converging focal point after camera lens.Figure 16 B shows the astigmatism curve of the optical imaging lens group of embodiment 8, indicates
Meridianal image surface bending and sagittal image surface bending.Figure 16 C shows the distortion curve of the optical imaging lens group of embodiment 8, table
Show the corresponding distortion sizes values of different image heights.Figure 16 D shows the ratio chromatism, curve of the optical imaging lens group of embodiment 8,
It indicates light via the deviation of the different image heights after camera lens on imaging surface.According to Figure 16 A to Figure 16 D it is found that embodiment 8
Given optical imaging lens group can be realized good image quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 17 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| f1/f5 | 1.16 | 1.02 | 1.21 | 1.03 | 1.10 | 1.35 | 1.21 | 1.05 |
| f3/f4 | 1.95 | 1.82 | 1.64 | 1.72 | 1.90 | 1.72 | 1.35 | 1.77 |
| R6/R1 | 2.67 | 1.96 | 1.61 | 1.65 | 1.40 | 1.39 | 1.46 | 1.69 |
| R2/R5 | 1.70 | 1.52 | 1.33 | 1.63 | 1.57 | 1.56 | 1.40 | 1.61 |
| R8/R7 | -1.22 | -1.20 | -1.77 | -1.33 | -1.31 | -1.78 | -1.38 | -1.29 |
| f/EPD | 2.08 | 2.08 | 2.08 | 2.08 | 2.08 | 2.08 | 2.08 | 2.08 |
| (T23+T45)/(T12+T34) | 1.00 | 0.50 | 0.45 | 0.44 | 0.42 | 0.50 | 0.48 | 0.53 |
| (CT1+CT3)/(CT4+CT5) | 1.03 | 2.12 | 2.99 | 2.95 | 2.68 | 3.05 | 3.04 | 2.65 |
| f345/f | 1.31 | 1.31 | 1.67 | 1.38 | 1.30 | 1.58 | 1.78 | 1.28 |
Table 17
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, be also possible to
The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imaging lens described above
Head group.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. optical imaging lens group, which is characterized in that the optical imaging lens group sequentially includes: first saturating by object side to image side
Microscope group, the second lens group and the third lens group,
First lens group includes first lens with focal power；
Second lens group includes reflection subassembly, and incident ray passes through first lens group along the direction of Y-axis and enters institute
The second lens group is stated, enters the third lens along the direction of X-axis via after the reflection subassembly reflection in second lens group
Group, wherein the Y-axis is substantially vertical with the X-axis；
The third lens group sequentially includes: the third with focal power by the reflection subassembly to the image side along the X-axis
Lens, the 4th lens and at least one subsequent lens, and
The effective focal length f4 of the effective focal length f3 of the third lens and the 4th lens meets 1.0 < f3/f4 < 2.0.
2. optical imaging lens group according to claim 1, which is characterized in that the optical imaging lens group maximum half
Field angle Semi-FOV meets Semi-FOV >=38 °.
3. optical imaging lens group according to claim 1, which is characterized in that at least one described subsequent lens include the
The effective focal length f5 of five lens, the effective focal length f1 of first lens group and the 5th lens meets 1.0 < f1/f5 <
1.5。
4. optical imaging lens group according to claim 1, which is characterized in that the curvature of the image side surface of the third lens
The radius of curvature R 1 of the object side of radius R6 and first lens meets 1.0 R6/R1≤3.0 <.
5. optical imaging lens group according to claim 1, which is characterized in that at least one described subsequent lens include the
Five lens, the combined focal length f345 and the optical imaging lens of the third lens, the 4th lens and the 5th lens
Total effective focal length f of head group meets 1.0 f345/f≤2.0 <.
6. optical imaging lens group according to claim 1, which is characterized in that the curvature of the image side surface of first lens
The radius of curvature R 5 of the object side of radius R2 and the third lens meets 1.0 < R2/R5 < 2.0.
7. optical imaging lens group according to claim 1, which is characterized in that the curvature of the image side surface of the 4th lens
The radius of curvature R 7 of the object side of radius R8 and the 4th lens meets -2.0 < R8/R7 < -1.0.
8. optical imaging lens group according to claim 1, which is characterized in that at least one described subsequent lens include the
Five lens, spacing distance T23 in the X-axis of the reflecting element and the third lens, the 4th lens and described
5th lens are at the interval of spacing distance T45, first lens and the reflecting element in the Y-axis in the X-axis
The spacing distance T34 of distance T12 and the third lens and the 4th lens in the X-axis meets 0 < (T23+
T45)/(T12+T34)≤1.0。
9. optical imaging lens group according to any one of claim 1 to 8, which is characterized in that the optical imaging lens
Total effective focal length f of head group and the Entry pupil diameters EPD of the optical imaging lens group meet f/EPD < 2.2.
10. optical imaging lens group, which is characterized in that the optical imaging lens group sequentially includes: first by object side to image side
Lens group, the second lens group and the third lens group,
First lens group includes first lens with focal power；
Second lens group includes reflection subassembly, and incident ray passes through first lens group along the direction of Y-axis and enters institute
The second lens group is stated, enters the third lens along the direction of X-axis via after the reflection subassembly reflection in second lens group
Group, wherein the Y-axis is substantially vertical with the X-axis；
The third lens group sequentially includes: the third with focal power by the reflection subassembly to the image side along the X-axis
Lens, the 4th lens and at least one subsequent lens, and
The radius of curvature R 1 of the object side of the radius of curvature R 6 of the image side surface of the third lens and first lens meets 1.0
R6/R1≤3.0 <.
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| WO2023016373A1 (en) * | 2021-08-12 | 2023-02-16 | 维沃移动通信（杭州）有限公司 | Optical lens, optical module and electronic device |
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