CN106990512A - Iris lens - Google Patents
Iris lens Download PDFInfo
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- CN106990512A CN106990512A CN201710386419.9A CN201710386419A CN106990512A CN 106990512 A CN106990512 A CN 106990512A CN 201710386419 A CN201710386419 A CN 201710386419A CN 106990512 A CN106990512 A CN 106990512A
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- 230000003287 optical effect Effects 0.000 claims abstract description 94
- 238000003384 imaging method Methods 0.000 claims abstract description 77
- 239000000571 coke Substances 0.000 claims abstract description 16
- 201000009310 astigmatism Diseases 0.000 description 16
- 239000000463 material Substances 0.000 description 15
- 238000009738 saturating Methods 0.000 description 13
- 238000005452 bending Methods 0.000 description 12
- 230000013011 mating Effects 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000004075 alteration Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 4
- 230000004304 visual acuity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002250 progressing 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
This application discloses a kind of iris lens, with total effective focal length f, the iris lens sequentially include along optical axis from thing side to imaging surface：First lens, the second lens and the 3rd lens.Wherein, the first lens have positive light coke, and its thing side is convex surface；Second lens and the 3rd lens are respectively provided with positive light coke or negative power.The thing side of first lens meets 0.7 on optical axis to imaging surface apart from TTL and total effective focal length f<TTL/f<1.1.
Description
Technical field
The present invention relates to a kind of iris lens, more particularly it relates to which a kind of include the iris lens of three lens.
Background technology
In recent years, with the development of science and technology, portable type electronic product progressively rises, with the portable of camera function
Electronic product, which obtains people, more to be favored, thus market to the demand of the pick-up lens suitable for portable type electronic product gradually
Increase.The photo-sensitive cell of conventional pick-up lens is generally CCD (Charge-Coupled Device, sense optical coupling element at present
Part) or CMOS (Complementary Metal-Oxide Semiconductor, Complimentary Metal-Oxide semiconductor element).
With progressing greatly for manufacture of semiconductor technology, optical system is intended to higher pixel, and the Pixel Dimensions of chip are less and less, to matching
The high image quality and miniaturization for covering the camera lens used propose higher requirement.
Particularly in field of biological recognition, with the development of biological identification technology, the requirement to iris lens is also increasingly
Height, to meet the application demand on different product.And apply not only needs to ensure that structure is tight in the technical iris lens
Gather, also need to possess higher brightness and resolving power, to improve the accuracy of identification of camera lens.
Accordingly, it is desirable to provide the iris lens that a kind of compact conformation, image quality are high, accuracy of identification is high.
The content of the invention
The technical scheme that the application is provided solves the problems, such as techniques discussed above at least in part.
According to the one side of the application there is provided such a iris lens, the iris lens have total effective focal length f
And sequentially include from thing side to imaging surface along optical axis：First lens, the second lens and the 3rd lens.First lens have positive light
Focal power, its thing side can be convex surface；Second lens and the 3rd lens are respectively provided with positive light coke or negative power.Wherein, first is saturating
The thing side of mirror can meet 0.7 on optical axis to imaging surface between TTL and total effective focal length f<TTL/f<1.1.
Such a iris lens are additionally provided according to further aspect of the application, the iris lens are along optical axis from thing side
Sequentially include to imaging surface：First lens, the second lens and the 3rd lens.First lens have positive light coke, and its thing side can
For convex surface；Second lens and the 3rd lens are respectively provided with positive light coke or negative power.Wherein, the first lens are in the center on optical axis
Thickness CT1 and the second lens can meet 1.7 between the center thickness CT2 on optical axis<CT1/CT2<3.
Such a iris lens are additionally provided according to further aspect of the application, the iris lens are along optical axis from thing side
Sequentially include to imaging surface：First lens, the second lens and the 3rd lens.First lens have positive light coke, and its thing side can
For convex surface；Second lens and the 3rd lens are respectively provided with positive light coke or negative power.Wherein, the image side surface and optical axis of the 3rd lens
Intersection point between the effective radius summit of the 3rd lens image side surface on optical axis apart from SAG32 and the 3rd lens on optical axis
Center thickness CT3 between can meet 0.1<|SAG32/CT3|<0.8.
In one embodiment, above-mentioned iris lens may also include the aperture light being arranged between thing side and the first lens
Door screen, distance apart from the thing side of SL and first lens to imaging surface on optical axis of the aperture diaphragm to imaging surface on optical axis
0.70 can be met between TTL<SL/TTL<1.25.
In one embodiment, the first lens in the center thickness CT1 on optical axis, the second lens in the center on optical axis
Thickness CT2 and the 3rd lens can meet 0.8 between the center thickness CT3 on optical axis<CT1/(CT2+CT3)<1.3.
In one embodiment, apart from TTL and electronics on imaging surface on thing side to the axle of imaging surface of the first lens
TTL/ImgH≤2.65 can be met between the half ImgH of photo-sensitive cell effective pixel area diagonal line length.
In one embodiment, the first lens thing side to imaging surface on optical axis apart from TTL and iris lens
Total effective focal length f between can meet 0.7<TTL/f<1.1.
In one embodiment, the first lens to the 3rd lens are respectively at the center thickness sum ∑ CT on optical axis and
The thing side of one lens can meet ∑ CT/TTL on optical axis to imaging surface between TTL<0.4.
In one embodiment, the image side surface of the 3rd lens and the intersection point of optical axis are to effectively the half of the 3rd lens image side surface
Between the summit of footpath 0.1 can be met on optical axis between the center thickness CT3 on optical axis apart from SAG32 and the 3rd lens<|
SAG32/CT3|<0.8。
In one embodiment, the image side surface of the first lens can be concave surface, the radius of curvature R 2 of the first lens image side surface
1.2 can be met between the effective focal length f1 of the first lens<R2/f1<1.7.
In one embodiment, the second lens can have negative power, and the effective focal length f1 of the first lens and second is saturating
- 0.9 can be met between the effective focal length f2 of mirror<f1/f2<-0.2.
In one embodiment, the effective radius DT11 of thing side of the first lens and having for the image side surface of the second lens
1.2 can be met between effect radius DT22<DT11/DT22<1.8.
In one embodiment, iris lens also include the IR infrared filterings being arranged between the 3rd lens and imaging surface
Piece, its band logical wave band is 750nm to 900nm.More specifically, the band logical wave band of IR infrared fileters can be 790nm to 830nm.
The application employs multi-disc (for example, three) lens, passes through the focal power of each eyeglass of reasonable distribution optical lens
And face type so that the iris lens have compact conformation, miniaturization, high brightness, high accuracy of identification, high image quality etc. at least
One beneficial effect.
Brief description of the drawings
With reference to accompanying drawing, by the detailed description of following non-limiting embodiment, other features of the invention, purpose and excellent
Point will be apparent.In the accompanying drawings：
Fig. 1 shows the structural representation of the iris lens according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axle of the iris lens of embodiment 1, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 3 shows the structural representation of the iris lens according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 2, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 5 shows the structural representation of the iris lens according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 3, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 7 shows the structural representation of the iris lens according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 4, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 9 shows the structural representation of the iris lens according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 5, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 11 shows the structural representation of the iris lens according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 6, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 13 shows the structural representation of the iris lens according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 7, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 15 shows the structural representation of the iris lens according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axle of the iris lens of embodiment 8, astigmatism curve, distortion song
Line and ratio chromatism, curve.
Embodiment
In order to more fully understand the application, refer to the attached drawing is made into more detailed description to the various aspects of the application.Should
Understand, these describe the description of illustrative embodiments simply to the application in detail, rather than limit the application in any way
Scope.In the specification, identical reference numbers identical element.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in this manual, the statement of first, second, third, etc. is only used for a feature and another spy
Levy and make a distinction, and do not indicate that any limitation to feature.Therefore, in the case of without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the 3rd lens.
In the accompanying drawings, for convenience of description, thickness, the size and dimension of lens are somewhat exaggerated.Specifically, accompanying drawing
Shown in sphere or aspherical shape be illustrated by way of example.That is, sphere or aspherical shape is not limited to accompanying drawing
In the sphere that shows or aspherical shape.Accompanying drawing is merely illustrative and simultaneously non-critical is drawn to scale.
In addition, near axis area refers to the region near optical axis.Herein, claim in each lens near the surface of object
For thing sideways, it is referred to as image side surface near the surface of imaging surface in each lens.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
Represented when being used in bright book exist stated feature, entirety, step, operation, element and/or part, but do not exclude the presence of or
It is attached with one or more of the other feature, entirety, step, operation, element, part and/or combinations thereof.In addition, ought be such as
When the statement of " ... at least one " is appeared in after the list of listed feature, the whole listed feature of modification, rather than modification
Individual component in list.In addition, when describing presently filed embodiment, use " can with " represent " one of the application or
Multiple embodiments ".Also, term " exemplary " is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein be respectively provided with
The application one skilled in the art's is generally understood that identical implication.It will also be appreciated that term is (such as in everyday words
Term defined in allusion quotation) implication consistent with their implications in the context of correlation technique should be interpreted as having, and
It will not explained with idealization or excessively formal sense, unless clearly such herein limit.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application 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.
Include such as three lens according to the iris lens of the application illustrative embodiments, i.e. it is the first lens, second saturating
Mirror and the 3rd lens.These three lens are along optical axis from thing side to imaging surface sequential.
In the exemplary embodiment, the first lens can have positive light coke, and its thing side can be convex surface；Second lens have
There are positive light coke or negative power；And the 3rd lens there is positive light coke or negative power.
In some embodiments, the aperture diaphragm for confine optical beam can be provided between thing side and the first lens
STO, to improve the image quality of iris lens.Aperture diaphragm STO on the axle of the imaging surface of iris lens apart from SL and first
0.70 can be met between TTL on thing side to the axle of the imaging surface of iris lens of lens<SL/TTL<1.25, more specifically
Ground, SL and TTL can further meet 0.85≤SL/TTL≤1.05, to realize work(that high-resolution, miniaturization, front end perforate are small
Effect.
Alternatively, iris lens may also include the optical filter being arranged between the 3rd lens and imaging surface.The optical filter can
For IR infrared fileters, IR infrared fileters can be used for filtering visible optical noise, so as to realize the high-performance recognition effect of camera lens.
The band logical wave band of the optical filter can be about 750nm to about 900nm, more specifically, its band logical wave band can be about 790nm to about
830nm, to reduce white light interference, lifts the recognition effect of iris lens.
Have on thing side to the axle of the imaging surface of iris lens of first lens on the imaging surface of TTL and iris lens
TTL/ImgH≤2.65 can be met between the half ImgH for imitating pixel region diagonal line length, more specifically, TTL and ImgH are further
2.50≤TTL/ImgH≤2.64 can be met to cause the compact conformation of iris lens, effect of miniaturization is realized.
Apart from TTL and iris lens total effective focal length on thing side to the axle of the imaging surface of iris lens of first lens
0.7 can be met between f<TTL/f<1.1, more specifically, TTL and f can further meet 0.88≤TTL/f≤0.94, with reality
While now miniaturization, it is ensured that longer focal length.
In the application, the center thickness of each lens can reasonably be configured, to reduce aberration, lifts the solution picture of camera lens
Power and accuracy of identification.For example, center thickness CT1 and second lens center thickness on optical axis of first lens on optical axis
1.7 can be met between CT2<CT1/CT2<3, more specifically, CT1 and CT2 can further meet 1.91≤CT1/CT2≤2.95.
In another example, center thickness CT1, second lens center thickness CT2 and threeth on optical axis of first lens on optical axis is saturating
Mirror can meet 0.8 between the center thickness CT3 on optical axis<CT1/(CT2+CT3)<1.3, more specifically, CT1, CT2 and
CT3 can further meet 0.89≤CT1/ (CT2+CT3)≤1.26.
In addition, the first lens to the 3rd lens are respectively at the center thickness summation ∑ CT on optical axis and the thing side of the first lens
∑ CT/TTL can be met between TTL on face to the axle of the imaging surface of iris lens<0.4, more specifically, ∑ CT and TTL enter
One step can meet 0.33≤∑ CT/TTL≤0.37.Rational lens dimension layout, is conducive to lens erection and production and processing.
In some embodiments, the image side surface of the 3rd lens and the intersection point of optical axis are to effectively the half of the 3rd lens image side surface
On axle between the summit of footpath 0.1 can be met between center thickness CT3 on optical axis of SAG32 and the 3rd lens<|SAG32/
CT3|<0.8, more specifically, SAG32 and CT3 can further meet 0.14≤| SAG32/CT3 |≤0.72.Rational configuration the
The shape and focal power of three lens, are conducive to lifting camera lens relative illumination and are conducive to controlling chief ray incident electronics photo-sensitive cell
Incident angle.
In some embodiments, the image side surface of the first lens can be concave surface.The radius of curvature of the image side surface of first lens
1.2 can be met between R2 and the effective focal length f1 of the first lens<R2/f1<1.7, more specifically, R2 and f1 can further be met
1.22≤R2/f1≤1.58.The shape and focal power of the first lens of rational configuration, advantageously reduce the aberration of camera lens, are lifted
Resolving power and accuracy of identification.
In some embodiments, the second lens can have negative power.The effective focal length f1 of first lens and second is saturating
- 0.9 can be met between the effective focal length f2 of mirror<f1/f2<- 0.2, more specifically, f1 and f2 can further meet -0.89≤f1/
f2≤-0.56.Pass through the reasonable distribution to lens powers, it is possible to decrease aberration, lifting resolving power and accuracy of identification.
In some embodiments, the effective radius DT11 of thing side of the first lens and having for the image side surface of the second lens
1.2 can be met between effect radius DT22<DT11/DT22<1.8, more specifically, DT11 and DT22 can further meet 1.47≤
DT11/DT22≤1.56。
Multi-disc eyeglass can be used according to the iris lens of the above-mentioned embodiment of the application, passes through each lens of reasonable distribution
Spacing etc. on axle between focal power, face type, the center thickness of each lens and each lens, can effectively compact lens barrel structure, protect
The miniaturization of camera lens is demonstrate,proved, so that iris lens are more beneficial for producing and processing and being applicable to portable type electronic product.
In presently filed embodiment, at least one in the minute surface of each lens is aspherical mirror.The characteristics of non-spherical lens is：It is bent
Rate is consecutive variations from lens centre to periphery.It is different from there is the spherical lens of constant curvature from lens centre to periphery, it is non-
Spherical lens has more preferably radius of curvature characteristic, has the advantages that to improve and distorts aberration and improvement astigmatic image error.Using aspheric
After the lens of face, the aberration occurred when imaging can be eliminated as much as possible, so as to improve image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical scheme situation
Under, the lens numbers for constituting camera lens can be changed, to obtain each result and the advantage described in this specification.For example, although
It is described in embodiment by taking three lens as an example, but the iris lens are not limited to include three lens.If desired,
The iris lens may also include the lens of other quantity.
The specific embodiment for the iris lens for being applicable to above-mentioned embodiment is further described with reference to the accompanying drawings.
Embodiment 1
The iris lens according to the embodiment of the present application 1 are described referring to Fig. 1 to Fig. 2 D.Fig. 1 is shown according to the application
The structural representation of the iris lens of embodiment 1.
As shown in figure 1, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of iris lens in embodiment 1
Coefficient.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 500.0000 | ||
| STO | Sphere | It is infinite | -0.4501 | ||
| S1 | It is aspherical | 0.9810 | 0.6128 | 1.53/55.8 | -0.1718 |
| S2 | It is aspherical | 3.1953 | 0.7231 | 10.6865 | |
| S3 | It is aspherical | -2.3592 | 0.2400 | 1.62/23.5 | -99.0000 |
| S4 | It is aspherical | 41.5979 | 0.6052 | 50.0000 | |
| S5 | It is aspherical | -9.8320 | 0.2932 | 1.53/55.8 | -99.0000 |
| S6 | It is aspherical | 17.6092 | 0.4153 | 50.0000 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4000 | ||
| S9 | Sphere | It is infinite |
Table 1
It can be obtained by table 1, apart from SL and the first lens L1 thing side on diaphragm STO to iris lens imaging surface S9 axle
SL/TTL=0.87 is met between TTL on S1 to the imaging surface S9 of iris lens axle；First lens L1 is on optical axis
The center thickness of center thickness CT2 and the 3rd lens L3 on optical axis of center thickness CT1, the second lens L2 on optical axis
CT1/ (CT2+CT3)=1.15 is met between CT3；Center thickness CT1s and second lens L2 of the first lens L1 on optical axis exist
CT1/CT2=2.55 is met between center thickness CT2 on optical axis；First lens L1 to the 3rd lens L3 is respectively on optical axis
It is full between TTL on center thickness summation ∑ CT and the first lens L1 thing side S1 to the imaging surface S9 of iris lens axle
Sufficient ∑ CT/TTL=0.33.
The present embodiment employs three lens as an example, by the focal length and face type of each eyeglass of reasonable distribution, effectively contracting
Short camera lens total length, it is ensured that compact conformation, improves accuracy of identification；Correct all kinds of aberrations simultaneously, improve the resolution of camera lens with
Image quality.Each aspherical face type x is limited by below equation：
Wherein, x be it is aspherical along optical axis direction height be h position when, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the mean curvature radius R of upper table 1 inverse)；K be circular cone coefficient (
Provided in upper table 1)；Ai is the correction factor of aspherical i-th-th ranks.Table 2 below is shown available for each aspheric in embodiment 1
Face minute surface S1-S6 high order term coefficient A4、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.0254E-02 | 3.0138E-02 | -3.1064E-02 | -1.6727E-01 | 2.2603E+00 | -8.4740E+00 | 1.6178E+01 | -1.5686E+01 | 6.2594E+00 |
| S2 | 1.7691E-02 | -1.0452E-01 | 1.2123E+00 | -8.7076E+00 | 3.8492E+01 | -1.0662E+02 | 1.8009E+02 | -1.6931E+02 | 6.8147E+01 |
| S3 | -8.0842E-01 | 7.7994E+00 | -8.7707E+01 | 7.8480E+02 | -5.2582E+03 | 2.3632E+04 | -6.5712E+04 | 9.9793E+04 | -6.1409E+04 |
| S4 | 4.8225E-01 | 6.7030E-01 | -1.8222E+01 | 2.1924E+02 | -1.7178E+03 | 8.5381E+03 | -2.5903E+04 | 4.3625E+04 | -3.1188E+04 |
| S5 | 5.5793E-02 | -2.4684E-01 | 1.7817E+00 | -7.1271E+00 | 1.7385E+01 | -2.4781E+01 | 1.9027E+01 | -6.2447E+00 | 1.8396E-01 |
| S6 | -7.1242E-02 | 1.1030E-01 | -1.3744E+00 | 6.7488E+00 | -1.9091E+01 | 3.2878E+01 | -3.3786E+01 | 1.8989E+01 | -4.4811E+00 |
Table 2
Table 3 below gives total effective focal length f of the iris lens of embodiment 1, the effective focal length f1 to f3 of each lens,
On one lens L1 thing side S1 to imaging surface S9 axle on TTL and imaging surface S9 effective pixel area diagonal line length
Half ImgH.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 3.98 | 2.45 | -3.58 | -11.90 | 3.50 | 1.40 |
Table 3
It can be obtained according to table 3, apart from TTL with having on imaging surface S9 on the first lens L1 thing side S1 to imaging surface S9 axle
TTL/ImgH=2.50 is met between the half ImgH for imitating pixel region diagonal line length；First lens L1 thing side S1 is extremely imaged
On face S9 axle TTL/f=0.88 is met between TTL and total effective focal length f of iris lens；First lens L1's is effective
F1/f2=3.51 is met between focal length f1 and the second lens L2 effective focal length f2.It can be obtained with reference to table 1 and table 3, the first lens L1
Image side surface S2 the lens L1 of radius of curvature R 2 and first effective focal length f1 between meet R2/f1=1.31.
In addition, the 3rd lens L3 image side surface S6 and the intersection point of optical axis are to the 3rd lens L3 image side surfaces S6's in the present embodiment
Met on axle between effective radius summit between center thickness CT3 on optical axis of SAG32 and the 3rd lens L3 |
SAG32/CT3 |=0.14；First lens L1 thing side S1 effective radius DT11 and having for the second lens L2 image side surface S4
DT11/DT22=1.53 can be met between effect radius DT22.
Fig. 2A shows chromatic curve on the axle of the iris lens of embodiment 1, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Fig. 2 B show the astigmatism curve of the iris lens of embodiment 1, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 2 C show the distortion curve of the iris lens of embodiment 1, and it is represented in the case of different visual angles
Distort sizes values.Fig. 2 D show the ratio chromatism, curve of the iris lens of embodiment 1, after it represents light via iris lens
The deviation of different image heights on imaging surface.Understand that the iris lens given by embodiment 1 can be real according to Fig. 2A to Fig. 2 D
Now good image quality.
Embodiment 2
The iris lens according to the embodiment of the present application 2 are described referring to Fig. 3 to Fig. 4 D.In the present embodiment and following reality
Apply in example, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2
The structural representation of iris lens.
As shown in figure 3, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of iris lens in embodiment 2
Coefficient.Table 5 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 24、A6、A8、A10、A12、A14、
A16、A18And A20.Table 6 shows total effective focal length f of the iris lens of embodiment 2, the effective focal length f1 to f3 of each lens,
On one lens L1 thing side S1 to imaging surface S9 axle on TTL and imaging surface S9 effective pixel area diagonal line length
Half ImgH.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 500.0000 | ||
| STO | Sphere | It is infinite | -0.4527 | ||
| S1 | It is aspherical | 0.9750 | 0.6147 | 1.53/55.8 | -0.1722 |
| S2 | It is aspherical | 3.1253 | 0.7123 | 10.4413 | |
| S3 | It is aspherical | -2.3178 | 0.2400 | 1.62/23.5 | -94.1421 |
| S4 | It is aspherical | It is infinite | 0.6034 | -99.0000 | |
| S5 | It is aspherical | -5.6195 | 0.3126 | 1.53/55.8 | -34.0553 |
| S6 | It is aspherical | It is infinite | 0.4075 | -99.0000 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4043 | ||
| S9 | Sphere | It is infinite |
Table 4
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.0130E-02 | 3.1592E-02 | -5.9786E-02 | 5.8256E-02 | 1.3141E+00 | -6.1681E+00 | 1.2893E+01 | -1.3136E+01 | 5.4189E+00 |
| S2 | 1.4527E-02 | -8.1497E-02 | 7.9280E-01 | -5.0532E+00 | 1.9699E+01 | -4.8443E+01 | 7.3027E+01 | -6.1545E+01 | 2.2386E+01 |
| S3 | -8.2320E-01 | 7.6169E+00 | -8.2851E+01 | 7.2191E+02 | -4.7303E+03 | 2.0741E+04 | -5.5860E+ 04 | 8.0920E+04 | -4.5940E+04 |
| S4 | 4.6484E-01 | 6.8695E-01 | -1.6727E+01 | 1.9414E+02 | -1.4766E+03 | 7.1504E+03 | -2.1210E+ 04 | 3.5033E+04 | -2.4621E+04 |
| S5 | 3.7363E-02 | -1.6890E-01 | 1.5377E+00 | -7.3089E+00 | 2.1522E+01 | -3.8487E+01 | 4.0585E+01 | -2.3160E+01 | 5.5097E+00 |
| S6 | -5.2140E-02 | -1.5707E-01 | 7.3896E-01 | -2.5958E+00 | 5.6549E+00 | -7.3791E+00 | 5.5833E+00 | -2.2318E+00 | 3.6138E-01 |
Table 5
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 3.97 | 2.44 | -3.73 | -10.64 | 3.50 | 1.40 |
Table 6
Fig. 4 A show chromatic curve on the axle of the iris lens of embodiment 2, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Fig. 4 B show the astigmatism curve of the iris lens of embodiment 2, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 4 C show the distortion curve of the iris lens of embodiment 2, and it is represented in the case of different visual angles
Distort sizes values.Fig. 4 D show the ratio chromatism, curve of the iris lens of embodiment 2, after it represents light via iris lens
The deviation of different image heights on imaging surface.Understand that the iris lens given by embodiment 2 can be real according to Fig. 4 A to Fig. 4 D
Now good image quality.
Embodiment 3
The iris lens according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Shen
Please embodiment 3 iris lens structural representation.
As shown in figure 5, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of iris lens in embodiment 3
Coefficient.Table 8 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 34、A6、A8、A10、A12、A14、
A16、A18And A20.Table 9 shows total effective focal length f of the iris lens of embodiment 3, the effective focal length f1 to f3 of each lens,
On one lens L1 thing side S1 to imaging surface S9 axle on TTL and imaging surface S9 effective pixel area diagonal line length
Half ImgH.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
Table 7
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.0229E-02 | 3.2835E-02 | -7.8157E-02 | 2.0314E-01 | 6.7879E-01 | -4.5194E+00 | 1.0374E+01 | -1.1039E+01 | 4.6803E+00 |
| S2 | 1.4488E-02 | -7.8860E-02 | 7.5269E-01 | -4.7719E+00 | 1.8486E+01 | -4.5306E+01 | 6.8136E+01 | -5.7281E+01 | 2.0726E+01 |
| S3 | -8.4271E-01 | 7.9031E+00 | -8.5539E+01 | 7.3987E+02 | -4.8072E+03 | 2.0907E+04 | -5.5820E+04 | 7.9951E+04 | -4.4546E+04 |
| S4 | 4.7174E-01 | 6.1824E-01 | -1.5468E+01 | 1.8084E+02 | -1.3921E+03 | 6.8242E+03 | -2.0468E+04 | 3.4131E+04 | -2.4183E+04 |
| S5 | 4.3473E-02 | -2.0655E-01 | 1.7419E+00 | -8.1405E+00 | 2.3664E+01 | -4.1896E+01 | 4.3834E+01 | -2.4857E+01 | 5.8834E+00 |
| S6 | -4.4013E-02 | -1.6813E-01 | 7.4294E-01 | -2.5475E+00 | 5.4657E+00 | -7.0315E+00 | 5.2374E+00 | -2.0555E+00 | 3.2601E-01 |
Table 8
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 3.97 | 2.44 | -3.76 | -10.45 | 3.50 | 1.40 |
Table 9
Fig. 6 A show chromatic curve on the axle of the iris lens of embodiment 3, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Fig. 6 B show the astigmatism curve of the iris lens of embodiment 3, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 6 C show the distortion curve of the iris lens of embodiment 3, and it is represented in the case of different visual angles
Distort sizes values.Fig. 6 D show the ratio chromatism, curve of the iris lens of embodiment 3, after it represents light via iris lens
The deviation of different image heights on imaging surface.Understand that the iris lens given by embodiment 3 can be real according to Fig. 6 A to Fig. 6 D
Now good image quality.
Embodiment 4
The iris lens according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Shen
Please embodiment 4 iris lens structural representation.
As shown in fig. 7, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of iris lens in embodiment 4
Bore coefficient.Table 11 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 44、A6、A8、A10、A12、
A14、A16、A18And A20.Table 12 show total effective focal length f of the iris lens of embodiment 4, each lens effective focal length f1 extremely
Effective pixel area is diagonal on TTL and imaging surface S9 on f3, the first lens L1 thing side S1 to imaging surface S9 axle
The half ImgH of line length.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 260.0000 | ||
| STO | Sphere | It is infinite | -0.4827 | ||
| S1 | It is aspherical | 1.0586 | 0.6544 | 1.53/55.8 | -0.1971 |
| S2 | It is aspherical | 3.9977 | 0.7161 | 11.1786 | |
| S3 | It is aspherical | -2.1496 | 0.3431 | 1.62/23.5 | -98.9559 |
| S4 | It is aspherical | -17.3495 | 0.5190 | -99.0000 | |
| S5 | It is aspherical | 8.0787 | 0.3890 | 1.53/55.8 | 19.8781 |
| S6 | It is aspherical | 3.9131 | 0.4684 | -5.3078 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4000 | ||
| S9 | Sphere | It is infinite |
Table 10
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.2319E-02 | 3.7947E-02 | -1.9381E-01 | 1.0504E+00 | -3.2546E+00 | 6.3644E+00 | -7.5661E+00 | 5.0445E+00 | -1.4481E+00 |
| S2 | 3.0785E-02 | -2.2630E-02 | 1.2698E-01 | -4.5658E-01 | 6.0715E-01 | 3.3300E-01 | -2.4165E+00 | 3.1320E+00 | -1.4695E+00 |
| S3 | -9.9775E-01 | 1.1166E+01 | -1.1312E+02 | 8.7393E+02 | -4.9069E+03 | 1.8679E+04 | -4.5100E+04 | 6.1734E+04 | -3.6244E+04 |
| S4 | 5.4455E-01 | -4.7677E-01 | 3.5692E+00 | -3.3203E+01 | 1.6372E+02 | -4.3542E+02 | 5.3015E+02 | -4.6745E+01 | -3.2393E+02 |
| S5 | 1.5565E-01 | -5.2177E-01 | 2.1161E+00 | -6.7654E+00 | 1.5131E+01 | -2.1955E+01 | 1.9517E+01 | -9.6009E+00 | 1.9932E+00 |
| S6 | 4.9992E-02 | -5.6897E-01 | 2.0109E+00 | -4.9764E+00 | 8.1370E+00 | -8.3543E+00 | 5.0476E+00 | -1.5656E+00 | 1.7394E-01 |
Table 11
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 3.94 | 2.53 | -3.98 | -14.84 | 3.70 | 1.40 |
Table 12
Fig. 8 A show chromatic curve on the axle of the iris lens of embodiment 4, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Fig. 8 B show the astigmatism curve of the iris lens of embodiment 4, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 8 C show the distortion curve of the iris lens of embodiment 4, and it is represented in the case of different visual angles
Distort sizes values.Fig. 8 D show the ratio chromatism, curve of the iris lens of embodiment 4, after it represents light via iris lens
The deviation of different image heights on imaging surface.Understand that the iris lens given by embodiment 4 can be real according to Fig. 8 A to Fig. 8 D
Now good image quality.
Embodiment 5
The iris lens according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Shen
Please embodiment 5 iris lens structural representation.
As shown in figure 9, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of iris lens in embodiment 5
Bore coefficient.Table 14 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 54、A6、A8、A10、A12、
A14、A16、A18And A20.Table 15 show total effective focal length f of the iris lens of embodiment 5, each lens effective focal length f1 extremely
Effective pixel area is diagonal on TTL and imaging surface S9 on f3, the first lens L1 thing side S1 to imaging surface S9 axle
The half ImgH of line length.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 260.0000 | ||
| STO | Sphere | It is infinite | -0.5256 | ||
| S1 | It is aspherical | 1.0644 | 0.7075 | 1.53/55.8 | -0.1853 |
| S2 | It is aspherical | 3.3249 | 0.7924 | 9.7285 | |
| S3 | It is aspherical | -2.5045 | 0.2400 | 1.62/23.5 | -78.1820 |
| S4 | It is aspherical | -16.2944 | 0.6220 | 50.0000 | |
| S5 | It is aspherical | -7.5709 | 0.3199 | 1.62/23.5 | 39.3841 |
| S6 | It is aspherical | 23.9415 | 0.4083 | -99.0000 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4044 | ||
| S9 | Sphere | It is infinite |
Table 13
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 6.4373E-03 | 1.1060E-02 | 1.0444E-02 | -1.0068E-01 | 6.1096E-01 | -1.6940E+00 | 2.5970E+00 | -2.0708E+00 | 6.8751E-01 |
| S2 | 8.5637E-03 | -5.3013E-02 | 4.5690E-01 | -2.4941E+00 | 8.1190E+00 | -1.6155E+01 | 1.9035E+01 | -1.2033E+01 | 3.1188E+00 |
| S3 | -5.4988E-01 | 2.5925E+00 | -7.3881E+00 | -8.4448E+01 | 1.2391E+03 | -7.9092E+03 | 2.7989E+04 | -5.2971E+04 | 4.1800E+04 |
| S4 | 2.9879E-01 | 3.7091E-01 | -5.6792E+00 | 5.5719E+01 | -3.6700E+02 | 1.5390E+03 | -3.9560E+03 | 5.6648E+03 | -3.4498E+03 |
| S5 | -6.2743E-02 | -1.7467E-01 | 2.1395E+00 | -9.2376E+00 | 2.3462E+01 | -3.6013E+01 | 3.2593E+01 | -1.5920E+01 | 3.2208E+00 |
| S6 | -1.5806E-01 | 7.1017E-02 | -1.6705E-01 | 7.1681E-01 | -2.2253E+00 | 4.0323E+00 | -4.1462E+00 | 2.2389E+00 | -4.9156E-01 |
Table 14
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 4.08 | 2.67 | -4.79 | -9.21 | 3.70 | 1.45 |
Table 15
Figure 10 A show chromatic curve on the axle of the iris lens of embodiment 5, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Figure 10 B show the astigmatism curve of the iris lens of embodiment 5, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 10 C show the distortion curve of the iris lens of embodiment 5, and it represents different visual angles situation
Under distortion sizes values.Figure 10 D show the ratio chromatism, curve of the iris lens of embodiment 5, and it represents light via iris
The deviation of different image heights after camera lens on imaging surface.Understood according to Figure 10 A to Figure 10 D, the iridoscope given by embodiment 5
Head can realize good image quality.
Embodiment 6
The iris lens according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.Figure 11 is shown according to this
Apply for the structural representation of the iris lens of embodiment 6.
As shown in figure 11, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of iris lens in embodiment 6
Bore coefficient.Table 17 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 64、A6、A8、A10、A12、
A14、A16、A18And A20.Table 18 show total effective focal length f of the iris lens of embodiment 6, each lens effective focal length f1 extremely
Effective pixel area is diagonal on TTL and imaging surface S9 on f3, the first lens L1 thing side S1 to imaging surface S9 axle
The half ImgH of line length.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 260.0000 | ||
| STO | Sphere | It is infinite | -0.5406 | ||
| S1 | It is aspherical | 1.0428 | 0.6833 | 1.53/55.8 | -0.1928 |
| S2 | It is aspherical | 3.2176 | 0.8420 | 8.0953 | |
| S3 | It is aspherical | -3.9183 | 0.2400 | 1.62/23.5 | -24.2360 |
| S4 | It is aspherical | 3.5788 | 0.4526 | -99.0000 | |
| S5 | It is aspherical | 5.2361 | 0.4099 | 1.53/55.8 | -22.9938 |
| S6 | It is aspherical | 5.5719 | 0.4623 | 14.1828 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4044 | ||
| S9 | Sphere | It is infinite |
Table 16
Table 17
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 4.08 | 2.63 | -2.97 | 115.63 | 3.70 | 1.45 |
Table 18
Figure 12 A show chromatic curve on the axle of the iris lens of embodiment 6, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Figure 12 B show the astigmatism curve of the iris lens of embodiment 6, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 12 C show the distortion curve of the iris lens of embodiment 6, and it represents different visual angles situation
Under distortion sizes values.Figure 12 D show the ratio chromatism, curve of the iris lens of embodiment 6, and it represents light via iris
The deviation of different image heights after camera lens on imaging surface.Understood according to Figure 12 A to Figure 12 D, the iridoscope given by embodiment 6
Head can realize good image quality.
Embodiment 7
The iris lens according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.Figure 13 is shown according to this
Apply for the structural representation of the iris lens of embodiment 7.
As shown in figure 13, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of iris lens in embodiment 7
Bore coefficient.Table 20 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 74、A6、A8、A10、A12、
A14、A16、A18And A20.Table 21 show total effective focal length f of the iris lens of embodiment 7, each lens effective focal length f1 extremely
Effective pixel area is diagonal on TTL and imaging surface S9 on f3, the first lens L1 thing side S1 to imaging surface S9 axle
The half ImgH of line length.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 260.0000 | ||
| STO | Sphere | It is infinite | -0.5217 | ||
| S1 | It is aspherical | 1.0577 | 0.6698 | 1.53/55.8 | -0.1987 |
| S2 | It is aspherical | 3.2937 | 0.8261 | 7.9914 | |
| S3 | It is aspherical | 109.1388 | 0.2400 | 1.62/23.5 | 50.0000 |
| S4 | It is aspherical | 1.9937 | 0.4977 | -39.8432 | |
| S5 | It is aspherical | 19.2516 | 0.4205 | 1.53/55.8 | -99.0000 |
| S6 | It is aspherical | 11.9956 | 0.4359 | -11.3624 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4043 | ||
| S9 | Sphere | It is infinite |
Table 19
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 6.9669E-03 | -5.4172E-03 | 9.8510E-02 | -3.1669E-01 | 5.7546E-01 | -5.1187E-01 | 1.8913E-01 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.6236E-03 | 1.1014E-02 | -1.3186E-01 | 3.8565E-01 | -6.3021E-01 | 5.0268E-01 | -1.6002E-01 | 0.0000E+00 | 0.0000E+00 |
| S3 | -3.2833E-01 | -6.0600E-02 | -3.6752E+00 | 1.0216E+01 | 1.6359E+02 | -2.0617E+03 | 9.9725E+03 | -2.3013E+04 | 2.0915E+04 |
| S4 | 5.7321E-01 | -2.3752E+00 | 7.3030E+00 | -2.0133E+00 | -1.3303E+02 | 7.5692E+02 | -2.0879E+03 | 2.9933E+03 | -1.7764E+03 |
| S5 | -6.4829E-02 | 7.4466E-03 | 5.5089E-01 | -1.8560E+00 | 3.8020E+00 | -5.0604E+00 | 4.0427E+00 | -1.7219E+00 | 2.9596E-01 |
| S6 | -1.5443E-01 | 4.4545E-02 | -1.4403E-01 | 5.4358E-01 | -1.2133E+00 | 1.6117E+00 | -1.2748E+00 | 5.4630E-01 | -9.6715E-02 |
Table 20
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 4.08 | 2.67 | -3.27 | -61.48 | 3.70 | 1.45 |
Table 21
Figure 14 A show chromatic curve on the axle of the iris lens of embodiment 7, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Figure 14 B show the astigmatism curve of the iris lens of embodiment 7, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 14 C show the distortion curve of the iris lens of embodiment 7, and it represents different visual angles situation
Under distortion sizes values.Figure 14 D show the ratio chromatism, curve of the iris lens of embodiment 7, and it represents light via iris
The deviation of different image heights after camera lens on imaging surface.Understood according to Figure 14 A to Figure 14 D, the iridoscope given by embodiment 7
Head can realize good image quality.
Embodiment 8
The iris lens according to the embodiment of the present application 8 are described referring to Figure 15 to Figure 16 D.Figure 15 is shown according to this
Apply for the structural representation of the iris lens of embodiment 8.
As shown in figure 15, iris lens include three lens L1-L3 from thing side to imaging surface sequential along optical axis.
First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；And the 3rd is saturating
Mirror L3 has thing side S5 and image side surface S6.Alternatively, iris lens may also include the filter with thing side S7 and image side surface S8
Mating plate L4.Optical filter L4 is IR infrared fileters, and its band logical wave band can be about 750nm to about 900nm, further, its band
Logical wave band can be about 790nm to about 830nm., can also be between thing side and the first lens L1 in the iris lens of the present embodiment
The aperture diaphragm STO for confine optical beam is provided with, to improve the image quality of iris lens.Light from object is sequentially passed through
Each surface S1 to S8 is simultaneously ultimately imaged on imaging surface S9.
Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of iris lens in embodiment 8
Bore coefficient.Table 23 shows the high order term coefficient A available for each aspherical mirror S1-S6 in embodiment 84、A6、A8、A10、A12、
A14、A16、A18And A20.Table 24 show total effective focal length f of the iris lens of embodiment 8, each lens effective focal length f1 extremely
Effective pixel area is diagonal on TTL and imaging surface S9 on f3, the first lens L1 thing side S1 to imaging surface S9 axle
The half ImgH of line length.Wherein, the formula (1) that each aspherical face type can be provided in above-described embodiment 1 is limited.
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | 260.0000 | ||
| STO | Sphere | It is infinite | 0.2000 | ||
| S1 | It is aspherical | 1.0797 | 0.6526 | 1.53/55.8 | -0.1889 |
| S2 | It is aspherical | 3.3396 | 0.8187 | 8.1297 | |
| S3 | It is aspherical | -4.9229 | 0.2400 | 1.53/55.8 | -87.1979 |
| S4 | It is aspherical | 5.5747 | 0.6385 | -99.0000 | |
| S5 | It is aspherical | -8.8702 | 0.3307 | 1.53/55.8 | 49.9990 |
| S6 | It is aspherical | 16.5497 | 0.4095 | -99.0000 | |
| S7 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S8 | Sphere | It is infinite | 0.4051 | ||
| S9 | Sphere | It is infinite |
Table 22
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 8.0611E-03 | -1.8992E-02 | 1.8570E-01 | -5.8486E-01 | 1.0407E+00 | -9.3072E-01 | 3.4685E-01 | 0.0000E+00 | 0.0000E+00 |
| S2 | -2.2001E-03 | 1.9288E-02 | -1.3183E- 01 | 3.8266E-01 | -6.2426E-01 | 5.1899E-01 | -1.6220E-01 | 0.0000E+00 | 0.0000E+00 |
| S3 | -3.2833E-01 | -6.0600E-02 | -3.6752E+ 00 | 1.0216E+01 | 1.6359E+02 | -2.0617E+03 | 9.9725E+03 | -2.3013E+04 | 2.0915E+04 |
| S4 | 5.7321E-01 | -2.3752E+00 | 7.3030E+00 | -2.0133E+00 | -1.3303E+02 | 7.5692E+02 | -2.0879E+03 | 2.9933E+03 | -1.7764E+03 |
| S5 | -6.4829E-02 | 7.4466E-03 | 5.5089E-01 | -1.8560E+00 | 3.8020E+00 | -5.0604E+00 | 4.0427E+00 | -1.7219E+00 | 2.9596E-01 |
| S6 | -1.5443E-01 | 4.4545E-02 | -1.4403E- 01 | 5.4358E-01 | -1.2133E+00 | 1.6117E+00 | -1.2748E+00 | 5.4630E-01 | -9.6715E-02 |
Table 23
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | TTL(mm) | ImgH(mm) |
| Numerical value | 4.07 | 2.75 | -4.91 | -10.88 | 3.71 | 1.45 |
Table 24
Figure 16 A show chromatic curve on the axle of the iris lens of embodiment 8, and it represents the light of different wave length via rainbow
Converging focal point after film camera lens deviates.Figure 16 B show the astigmatism curve of the iris lens of embodiment 8, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 16 C show the distortion curve of the iris lens of embodiment 8, and it represents different visual angles situation
Under distortion sizes values.Figure 16 D show the ratio chromatism, curve of the iris lens of embodiment 8, and it represents light via iris
The deviation of different image heights after camera lens on imaging surface.Understood according to Figure 16 A to Figure 16 D, the iridoscope given by embodiment 8
Head can realize good image quality.
To sum up, embodiment 1 to embodiment 8 meets the relation shown in table 25 below respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| SL/TTL | 0.87 | 0.87 | 0.87 | 0.87 | 0.86 | 0.85 | 0.86 | 1.05 |
| CT1/(CT2+CT3) | 1.15 | 1.11 | 1.12 | 0.89 | 1.26 | 1.05 | 1.01 | 1.14 |
| TTL/ImgH | 2.50 | 2.50 | 2.50 | 2.64 | 2.56 | 2.56 | 2.56 | 2.56 |
| TTL/f | 0.88 | 0.88 | 0.88 | 0.94 | 0.91 | 0.91 | 0.91 | 0.91 |
| CT1/CT2 | 2.55 | 2.56 | 2.57 | 1.91 | 2.95 | 2.85 | 2.79 | 2.72 |
| ∑CT/TTL | 0.33 | 0.33 | 0.33 | 0.37 | 0.34 | 0.36 | 0.36 | 0.33 |
| R2/f1 | 1.31 | 1.28 | 1.27 | 1.58 | 1.24 | 1.22 | 1.23 | 1.22 |
| |SAG32/CT3| | 0.14 | 0.26 | 0.27 | 0.20 | 0.46 | 0.16 | 0.36 | 0.72 |
| f1/f2 | -0.68 | -0.66 | -0.65 | -0.64 | -0.56 | -0.89 | -0.82 | -0.56 |
| DT11/DT22 | 1.53 | 1.50 | 1.50 | 1.51 | 1.55 | 1.47 | 1.51 | 1.56 |
Table 25
The application also provides a kind of camera device, and its photo-sensitive cell can be photosensitive coupling element (CCD) or complementary oxygen
Change metal semiconductor element (CMOS).Camera device can be the independent picture pick-up device of such as digital camera or integrated
Photographing module on the mobile electronic devices such as mobile phone.The camera device is equipped with iris lens described above.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes formed by any combination.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical characteristic of energy carries out technical scheme formed by replacement mutually.
Claims (14)
1. iris lens, with total effective focal length f, the iris lens sequentially include along optical axis from thing side to imaging surface：First
Lens, the second lens and the 3rd lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens and the 3rd lens are respectively provided with positive light coke or negative power；
The thing side of first lens expiring apart from TTL and total effective focal length f on the optical axis to the imaging surface
Foot 0.7<TTL/f<1.1.
2. iris lens according to claim 1, it is characterised in that the iris lens also include being arranged on thing side and institute
The aperture diaphragm between the first lens is stated,
The aperture diaphragm is to thing side apart from SL and first lens of the imaging surface on the optical axis to described
Imaging surface meets 0.70 on the optical axis apart from TTL<SL/TTL<1.25.
3. iris lens according to claim 1 or 2, it is characterised in that first lens are on the optical axis
Heart thickness CT1, second lens are in the center thickness CT2 on the optical axis and the 3rd lens on the optical axis
Center thickness CT3 meets 0.8<CT1/(CT2+CT3)<1.3.
4. iris lens according to claim 1 or 2, it is characterised in that the thing side of first lens to it is described into
Apart from TTL and the imaging surface on the half of electronics photo-sensitive cell effective pixel area diagonal line length of the image planes on the optical axis
ImgH meets TTL/ImgH≤2.65.
5. iris lens according to claim 1 or 2, it is characterised in that first lens are on the optical axis
Heart thickness CT1 meets 1.7 with second lens in the center thickness CT2 on the optical axis<CT1/CT2<3.
6. iris lens according to claim 1 or 2, it is characterised in that first lens to the 3rd lens point
Not in the thing side of the center thickness sum ∑ CT on the optical axis and first lens to the imaging surface in the optical axis
On meet ∑ CT/TTL apart from TTL<0.4.
7. iris lens according to claim 1 or 2, it is characterised in that the image side surface and the light of the 3rd lens
The intersection point of axle between the effective radius summit of the 3rd lens image side surface on the optical axis apart from SAG32 and described the
Three lens meet 0.1 in the center thickness CT3 on the optical axis<|SAG32/CT3|<0.8.
8. iris lens according to claim 1 or 2, it is characterised in that the image side surface of first lens is concave surface, institute
State the radius of curvature R 2 of the first lens image side surface and meet 1.2 with the effective focal length f1 of first lens<R2/f1<1.7.
9. iris lens according to claim 1 or 2, it is characterised in that second lens have negative power, described
The effective focal length f1 of first lens and second lens effective focal length f2 meet -0.9<f1/f2<-0.2.
10. iris lens according to claim 1 or 2, it is characterised in that effectively the half of the thing side of first lens
Footpath DT11 and the image side surface of second lens effective radius DT22 meet 1.2<DT11/DT22<1.8.
11. iris lens according to any one of claim 1 to 10, it is characterised in that the iris lens also include
The IR infrared fileters between the 3rd lens and the imaging surface are arranged on, its band logical wave band is 750nm to 900nm.
12. iris lens according to claim 11, it is characterised in that the band logical wave band of the IR infrared fileters is
790nm to 830nm.
13. iris lens, sequentially include along optical axis from thing side to imaging surface：First lens, the second lens and the 3rd lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens and the 3rd lens are respectively provided with positive light coke or negative power,
First lens are in the center thickness CT1 on the optical axis and second lens in the center thickness on the optical axis
CT2 meets 1.7<CT1/CT2<3.
14. iris lens, sequentially include along optical axis from thing side to imaging surface：First lens, the second lens and the 3rd lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens and the 3rd lens are respectively provided with positive light coke or negative power；
The image side surface of 3rd lens and the intersection point of the optical axis to the effective radius summit of the 3rd lens image side surface it
Between in the center thickness CT3 on the optical axis meet 0.1 apart from SAG32 and the 3rd lens on the optical axis<|
SAG32/CT3|<0.8。
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| CN201710386419.9A CN106990512B (en) | 2017-05-26 | 2017-05-26 | Iris lens |
| US16/074,733 US11194125B2 (en) | 2017-05-26 | 2017-10-26 | Iris lens assembly |
| PCT/CN2017/107846 WO2018214397A1 (en) | 2017-05-26 | 2017-10-26 | Iris lens |
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