CN109799597A - A kind of optical imaging lens - Google Patents
A kind of optical imaging lens Download PDFInfo
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- CN109799597A CN109799597A CN201910242801.1A CN201910242801A CN109799597A CN 109799597 A CN109799597 A CN 109799597A CN 201910242801 A CN201910242801 A CN 201910242801A CN 109799597 A CN109799597 A CN 109799597A
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 238000003384 imaging method Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005499 meniscus Effects 0.000 abstract 4
- 230000004304 visual acuity Effects 0.000 description 8
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- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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Abstract
The present invention relates to lens technology fields.The invention discloses a kind of optical imaging lens, along an optical axis successively include the first lens to the tenth lens from object side to image side, the first lens are the meniscus for having positive refractive index；Second lens are the meniscus for having negative refractive index；The third lens are the meniscus for having negative refractive index；4th lens have positive refractive index, and object side is convex；5th lens have positive refractive index, and image side surface is convex；6th lens are the concave-convex lens for having positive refractive index；7th lens are the concavo-concave lens for having negative refractive index；The object side of the image side surface and the 7th lens of 6th lens is mutually glued；8th lens are the convex-convex lens for having positive refractive index；9th lens are the concave-convex lens for having positive refractive index；Tenth lens are the meniscus for having positive refractive index.The present invention has image planes big, and distort small advantage.
Description
Technical field
The invention belongs to lens technology fields, more particularly to a kind of optical imaging lens of ten chips.
Background technique
With the continuous progress of technology, in recent years, optical imaging lens are also grown rapidly, and are widely used in intelligence
The every field such as mobile phone, tablet computer, video conference, safety monitoring, therefore, the requirement for optical imaging lens is also increasingly
Height, in addition to require miniaturization other than, the improvement of optical property and image quality is also increasingly focused on, but it is existing it is undistorted (i.e.
Distort very little) camera lens, image planes are smaller, are less than 7mm, sensor utilization is low, is unable to satisfy the growing requirement of consumer.
Summary of the invention
It is an object of the invention to a kind of optical imaging lens to solve above-mentioned technical problem.
To achieve the above object, the technical solution adopted by the present invention are as follows: a kind of optical imaging lens, from object side to image side edge
One optical axis successively includes the first lens, the second lens, the third lens, the 4th lens, diaphragm, the 5th lens, the 6th lens, the 7th
Lens, the 8th lens, the 9th lens and the tenth lens；First lens respectively include one towards object side to the tenth lens and make into
The object side that passes through as light and one is towards image side and the image side surface that passes through imaging ray；
First lens have positive refractive index, and the object side of first lens is convex surface, and the image side surface of first lens is recessed
Face；
Second lens have negative refractive index, and the object side of second lens is convex surface, and the image side surface of second lens is recessed
Face；
The third lens have negative refractive index, and the object side of the third lens is convex surface, and the image side surface of the third lens is recessed
Face；
4th lens have positive refractive index, and the object side of the 4th lens is convex surface；
5th lens have positive refractive index, and the image side surface of the 5th lens is convex surface；
6th lens have positive refractive index, and the object side of the 6th lens is concave surface, and the image side surface of the 6th lens is convex
Face；
7th lens have negative refractive index, and the object side of the 7th lens is concave surface, and the image side surface of the 7th lens is recessed
Face；
The object side of the image side surface and the 7th lens of 6th lens is mutually glued；
8th lens have positive refractive index, and the object side of the 8th lens is convex surface, and the image side surface of the 8th lens is convex
Face；
9th lens have positive refractive index, and the object side of the 9th lens is concave surface, and the image side surface of the 9th lens is convex
Face；
Tenth lens have positive refractive index, and the object side of the tenth lens is convex surface, and the image side surface of the tenth lens is recessed
Face；
There are the optical imaging lens lens of refractive index there was only above-mentioned ten.
Further, which also meets: D22/R22≤1.76, wherein D22 is the image side of the second lens
The clear aperture in face, R22 are the radius of curvature of the image side surface of the second lens.
Further, which also meets: D32/R32≤1.73, wherein D32 is the image side of the third lens
The clear aperture in face, R32 are the radius of curvature of the image side surface of the third lens.
Further, the image side surface of the 4th lens is plane.
Further, the diaphragm is set up directly on the image side surface of the 4th lens, the object side of the 5th lens
For plane.
Further, which also meets: 2 < | R67 | < 4, wherein R67 is that the 6th lens and the 7th are saturating
The radius of curvature of the cemented surface of mirror.
Further, which also meets: 1.55 < nd1 < 1.7,55 < vd1 < 67；1.55 < nd2 < 1.7,50 <
vd2<59；1.48 < nd3 < 1.57,45 < vd3 < 52；1.68 < nd4 < 1.8,20 < vd4 < 31；1.86 < nd5 < 1.95,27 < vd5 <
36；1.53 < nd6 < 1.61,62 < vd6 < 73；1.8 < nd7 < 1.9,18 < vd7 < 29；1.6 < nd8 < 1.75,43 < vd8 < 57；1.7<
Nd9 < 1.85,42 < vd9 < 56；1.9 < nd10 < 2.15,16 < vd10 < 28, wherein nd1-nd10 respectively indicates first lens extremely
Tenth lens d line refractive index, vd1-vd10 respectively indicate first lens to the tenth lens d line abbe number.
Further, which also meets: 2.7 < ALG < 4.2, wherein ALG be first lens to this
The air gap summation of ten lens on the optical axis.
Further, which also meets: 14 < ALT < 16, wherein ALT is first lens to the tenth
The summation of ten lens thickness of the lens on the optical axis.
Further, which also meets: 4.1 < ALT/ALG < 4.5, wherein ALG is that first lens arrive
The air gap summation of tenth lens on the optical axis, ALT be first lens to the tenth lens on the optical axis ten
The summation of a lens thickness.
Advantageous effects of the invention:
The present invention uses ten lens, and by the refractive index and concave-convex curved surface arrangement design to each lens, has
Distort small, almost undistorted, image planes are big, be greater than 7.7mm the advantages of.In addition, the present invention also has big visual field color difference small, color is also
Originality is strong；It is managed to letter is passed, high-resolution, height parsing, image sharpness is high, image uniform；It is low good according to characteristic, it is bad in light
Under situation, clearly color image can also be realized；Infrared defocus smaller (the infrared offset IR shift < 13um of 850nm) it is excellent
Point.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one；
The MTF figure that Fig. 2 is the 0.435-0.646um of the embodiment of the present invention one；
The MTF figure that Fig. 3 is the infrared 850nm of the embodiment of the present invention one；
Fig. 4 is the defocusing curve figure of the visible light 0.435-0.646um of the embodiment of the present invention one；
Fig. 5 is the defocusing curve figure of the infrared ray 850nm of the embodiment of the present invention one；
Fig. 6 is the curvature of field and distortion schematic diagram of the embodiment of the present invention one；
The MTF figure that Fig. 7 is the 0.435-0.646um of the embodiment of the present invention two；
The MTF figure that Fig. 8 is the infrared 850nm of the embodiment of the present invention two；
Fig. 9 is the defocusing curve figure of the visible light 0.435-0.646um of the embodiment of the present invention two；
Figure 10 is the defocusing curve figure of the infrared ray 850nm of the embodiment of the present invention two；
Figure 11 is the curvature of field and distortion schematic diagram of the embodiment of the present invention two；
The MTF figure that Figure 12 is the 0.435-0.646um of the embodiment of the present invention three；
The MTF figure that Figure 13 is the infrared 850nm of the embodiment of the present invention three；
Figure 14 is the defocusing curve figure of the visible light 0.435-0.646um of the embodiment of the present invention three；
Figure 15 is the defocusing curve figure of the infrared ray 850nm of the embodiment of the present invention three；
Figure 16 is the curvature of field and distortion schematic diagram of the embodiment of the present invention three；
The MTF figure that Figure 17 is the 0.435-0.646um of the embodiment of the present invention four；
The MTF figure that Figure 18 is the infrared 850nm of the embodiment of the present invention four；
Figure 19 is the defocusing curve figure of the visible light 0.435-0.646um of the embodiment of the present invention four；
Figure 20 is the defocusing curve figure of the infrared ray 850nm of the embodiment of the present invention four；
Figure 21 is the curvature of field and distortion schematic diagram of the embodiment of the present invention four；
Figure 22 is the numerical tabular of each important parameter of four embodiments of the invention.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Described " lens have positive refractive index (or negative refractive index) ", refers to the lens with first-order theory theoretical calculation
Paraxial refractive index out is positive (or being negative).Described " the object sides (or image side surface) of lens " are defined as imaging ray and pass through
The particular range of lens surface.The face shape bumps judgement of lens can pass through according to the judgment mode of skill usual in the field
The sign of radius of curvature (being abbreviated as R value) judges the bumps of lens face shape deflection.R value common can be used in optical design software
In, such as Zemax or CodeV.R value is also common in the lens data sheet (lens data sheet) of optical design software.With
For object side, when R value be timing, be determined as object side be convex surface；When R value is negative, determine that object side is concave surface.Conversely,
For image side surface, when R value is timing, judgement image side surface is concave surface；When R value is negative, determine that image side surface is convex surface.
The present invention provides a kind of optical imaging lens, along an optical axis successively includes the first lens, second from object side to image side
Lens, the third lens, the 4th lens, diaphragm, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and
Ten lens；First lens to the tenth lens respectively include one towards object side and the object side for passing through imaging ray and a court
To image side and the image side surface that passes through imaging ray；
First lens have positive refractive index, and the object side of first lens is convex surface, and the image side surface of first lens is recessed
Face；
Second lens have negative refractive index, and the object side of second lens is convex surface, and the image side surface of second lens is recessed
Face；
The third lens have negative refractive index, and the object side of the third lens is convex surface, and the image side surface of the third lens is recessed
Face；
4th lens have positive refractive index, and the object side of the 4th lens is convex surface；
5th lens have positive refractive index, and the image side surface of the 5th lens is convex surface；
6th lens have positive refractive index, and the object side of the 6th lens is concave surface, and the image side surface of the 6th lens is convex
Face；
7th lens have negative refractive index, and the object side of the 7th lens is concave surface, and the image side surface of the 7th lens is recessed
Face；It with the 7th lens is to make the core thickness susceptibility of the lens lower in conjunction with biconcave lens that 6th lens, which are crescent lens, can be with
Guarantee to assemble in lesser core thickness tolerance, improves product yield.
The object side of the image side surface and the 7th lens of 6th lens is mutually glued；The effect of landing low aberration, improves imaging
Quality.
8th lens have positive refractive index, and the object side of the 8th lens is convex surface, and the image side surface of the 8th lens is convex
Face；
9th lens have positive refractive index, and the object side of the 9th lens is concave surface, and the image side surface of the 9th lens is convex
Face；
Tenth lens have positive refractive index, and the object side of the tenth lens is convex surface, and the image side surface of the tenth lens is recessed
Face；
There are the optical imaging lens lens of refractive index there was only above-mentioned ten.Using ten lens, and by each
The refractive index and concave-convex curved surface arrangement design of lens have distortion small, and almost undistorted, image planes are big, excellent greater than 7.7mm
Point.
Preferably, which also meets: D22/R22≤1.76, wherein D22 is the image side surface of the second lens
Clear aperture, R22 be the second lens image side surface radius of curvature.It realizes under the premise of low f-theta distorts function, is convenient for
Technique processing.
Preferably, which also meets: D32/R32≤1.73, wherein D32 is the image side surface of the third lens
Clear aperture, R32 be the third lens image side surface radius of curvature.It realizes under the premise of low f-theta distorts function, is convenient for
Technique processing.
Preferably, the image side surface of the 4th lens is plane.Four lens are in lesser inclination before guarantee diaphragm can be facilitated
Tolerance assembling promotes assembling yield, and certainly, in some embodiments, the image side surface of the 4th lens is also possible to convex surface or recessed
Face.
It is furthermore preferred that the diaphragm is set up directly on the image side surface of the 4th lens, the object side of the 5th lens is
It is public can to manage lesser interval convenient for diaphragm interval in conjunction with the plane rise control+- 1um of the object side of the 5th lens for plane
Difference can facilitate four eyeglasses before guaranteeing diaphragm to assemble in lesser tilt tolerance, improve product yield.Certainly, in some implementations
In example, the object side of the 5th lens is also possible to convex surface or concave surface.
Preferably, which also meets: 2 < | R67 | < 4, wherein R67 is the 6th lens and the 7th lens
Cemented surface radius of curvature.The effect of landing low aberration, improves image quality.
Preferably, which also meets: 1.55 < nd1 < 1.7,55 < vd1 < 67；1.55 < nd2 < 1.7,50 <
vd2<59；1.48 < nd3 < 1.57,45 < vd3 < 52；1.68 < nd4 < 1.8,20 < vd4 < 31；1.86 < nd5 < 1.95,27 < vd5 <
36；1.53 < nd6 < 1.61,62 < vd6 < 73；1.8 < nd7 < 1.9,18 < vd7 < 29；1.6 < nd8 < 1.75,43 < vd8 < 57；1.7<
Nd9 < 1.85,42 < vd9 < 56；1.9 < nd10 < 2.15,16 < vd10 < 28, wherein nd1-nd10 respectively indicates first lens extremely
Tenth lens d line refractive index, vd1-vd10 respectively indicate first lens to the tenth lens d line abbe number.It should
Preferable visible with infrared confocal property, the infrared offset IR shift < 13um of 850nm may be implemented, together in series material combination
When the performance of preferable color difference, MTF performance also may be implemented, low distortion shows.
Preferably, which also meets: 2.7 < ALG < 4.2, wherein ALG is first lens to the tenth
The air gap summation of the lens on the optical axis.Further to shorten the system length of optical imaging lens, and system easy to process
It makes, optimization of system config.
Preferably, which also meets: 14 < ALT < 16, wherein ALT be first lens to the tenth thoroughly
The summation of ten lens thickness of the mirror on the optical axis.Further to shorten the system length of optical imaging lens, and it is easy to add
Work manufacture, optimization of system config.
Preferably, which also meets: 4.1 < ALT/ALG < 4.5, wherein ALG be first lens arrive this
The air gap summation of tenth lens on the optical axis, ALT are ten of first lens to the tenth lens on the optical axis
The summation of lens thickness.Further to shorten the system length of optical imaging lens, and it is easy to manufacture, optimization system is matched
It sets.
Optical imaging lens of the invention will be described in detail with specific embodiment below.
Implement one
It along an optical axis I successively include the first lens from object side A1 to image side A2 as shown in Figure 1, a kind of optical imaging lens
1, the second lens 2, the third lens 3, the 4th lens 4, diaphragm (not shown), the 5th lens 5, the 6th lens 6, the 7th lens
7, the 8th lens 8, the 9th lens 9, the tenth lens 10, optical filter 110, protection glass 120 and imaging surface 130；First lens 1
Respectively include one towards object side A1 and the object side for passing through imaging ray and one towards image side A2 to the tenth lens 10 and makes
The image side surface that imaging ray passes through；
First lens 1 have positive refractive index, and the object side 11 of first lens 1 is convex surface, the image side surface of first lens 1
12 be concave surface；
Second lens 2 have negative refractive index, and the object side 21 of second lens 2 is convex surface, the image side surface of second lens 2
22 be concave surface；
The third lens 3 have negative refractive index, and the object side 31 of the third lens 3 is convex surface, the image side surface of the third lens 3
32 be concave surface；
4th lens 4 have positive refractive index, and the object side 41 of the 4th lens 4 is convex surface, the image side surface of the 4th lens 4
42 be plane, and the diaphragm is set up directly in the plane 42；
5th lens 5 have positive refractive index, and the object side 51 of the 5th lens 5 is plane, the image side surface of the 5th lens 5
52 be convex surface；
6th lens 6 have positive refractive index, and the object side 61 of the 6th lens 6 is concave surface, the image side surface of the 6th lens 6
62 be convex surface；
7th lens 7 have negative refractive index, and the object side 71 of the 7th lens 7 is concave surface, the image side surface of the 7th lens 7
72 be concave surface；The image side surface 62 of 6th lens 6 and the object side 71 of the 7th lens 7 are mutually glued.
8th lens 8 have positive refractive index, and the object side 81 of the 8th lens 8 is convex surface, the image side surface of the 8th lens 8
82 be convex surface；
9th lens 9 have positive refractive index, and the object side 91 of the 9th lens 9 is concave surface, the image side surface of the 9th lens 9
92 be convex surface；
Tenth lens 10 have positive refractive index, and the object side 101 of the tenth lens 10 is convex surface, the picture of the tenth lens 10
Side 102 is concave surface；
In this specific embodiment, optical filter 110 can be infrared intercepting filter, with to avoid the infrared ray in light
It is transferred to imaging surface and influences image quality.
The detailed optical data of this specific embodiment are as shown in table 1-1.
The detailed optical data of table 1-1 embodiment one
The numerical value of each conditional expression of this specific embodiment please refers to Figure 22, wherein TTL is that first lens 1 arrive
The distance of the imaging surface 130 on optical axis I.
The resolving power of this specific embodiment please refers to Fig. 2 and 3, can be seen from the chart and manages to biography letter, and resolving power is good,
High resolution, it is seen that please refer to Figure 4 and 5 with the confocal property of infrared 850nm, it can be seen that visible light and infrared confocal property are good, 850nm
Infrared offset IR shift < 13um, the curvature of field and distortion figure are detailed in Fig. 6 (A) and Fig. 6 (B), it can be seen that and distortion is small, almost without
Distortion.
In this specific embodiment, the focal length f=5.40mm of the multi-focal length optical imaging lens of optical imaging lens；F-number
FNO=2.75；Image planes size Ф=7.72mm；Field angle FOV=72.
Implement two
The present embodiment is identical as the face type bumps and refractive index of each lens of embodiment one, only the curvature of each lens surface
The optical parameters such as radius, lens thickness are different.
The detailed optical data of this specific embodiment are as shown in table 2-1.
The detailed optical data of table 2-1 embodiment two
The numerical value of each conditional expression of this specific embodiment please refers to Figure 22.
The resolving power of this specific embodiment please refers to Fig. 7 and 8, can be seen from the chart and manages to biography letter, and resolving power is good,
High resolution, it is seen that please refer to Fig. 9 and 10 with the confocal property of infrared 850nm, it can be seen that visible light and infrared confocal property are good,
The infrared offset IR shift < 13um of 850nm, the curvature of field and distortion figure are detailed in Figure 11 (A) and Figure 11 (B), it can be seen that and distortion is small,
It is almost undistorted.
In this specific embodiment, the focal length f=5.39mm of the multi-focal length optical imaging lens of optical imaging lens；F-number
FNO=2.77；Image planes size Ф=7.71mm；Field angle FOV=72.5.
Implement three
The present embodiment is identical as the face type bumps and refractive index of each lens of embodiment one, only the curvature of each lens surface
The optical parameters such as radius, lens thickness are different.
The detailed optical data of this specific embodiment are as shown in table 3-1.
The detailed optical data of table 3-1 embodiment three
| Surface | Radius of curvature | Thickness | Material | Refractive index | Abbe number | Focal length | |
| - | Object plane shot | Infinity | Infinity | ||||
| 11 | First lens | 13.306 | 1.838 | H-ZK9B | 1.62 | 60.37 | 31.00 |
| 12 | 40.519 | 0.100 | |||||
| 21 | Second lens | 6.218 | 0.717 | H-ZK10L | 1.62 | 56.95 | -10.12 |
| 22 | 2.996 | 1.280 | |||||
| 31 | The third lens | 7.884 | 0.597 | H-QF6A | 1.53 | 48.85 | -7.99 |
| 34 | 2.696 | 1.410 | |||||
| 41 | 4th lens | 11.624 | 2.944 | H-ZF12 | 1.76 | 26.61 | 15.12 |
| 42 | Infinity | 0.000 | |||||
| - | Diaphragm | Infinity | 0.025 | 5.49 | |||
| 51 | 5th lens | Infinity | 2.905 | TAFD25 | 1.90 | 31.32 | |
| 52 | -4.995 | 0.097 | 6.43 | ||||
| 61 | 6th lens | -40.075 | 1.454 | FCD515 | 1.59 | 68.62 | |
| 62 | -3.538 | 0 | |||||
| 71 | 7th lens | -3.538 | 0.555 | H-ZF52 | 1.85 | 23.79 | -3.14 |
| 72 | 11.921 | 0.322 | |||||
| 81 | 8th lens | 143.888 | 1.895 | H-LAF1 | 1.69 | 49.23 | 10.17 |
| 82 | -7.414 | 0.116 | |||||
| 91 | 9th lens | -151.005 | 1.054 | H-LAF50B | 1.77 | 49.61 | 30.16 |
| 92 | -20.330 | 0.206 | |||||
| 101 | Tenth lens | 17.369 | 1.109 | TAFD40 | 2.00 | 25.45 | 32.282 |
| 102 | 35.976 | 2.071 | |||||
| 110 | Optical filter | Infinity | 0.300 | H-K9L | 1.52 | 64.21 | Infinity |
| - | Infinity | 3.888 | |||||
| 130 | Protect glass | Infinity | 0.400 | H-K9L | 1.52 | 64.21 | Infinity |
| - | Infinity | 0.100 | |||||
| 130 | Imaging surface | Infinity |
The numerical value of each conditional expression of this specific embodiment please refers to Figure 22.
The resolving power of this specific embodiment please refers to Figure 12 and 13, can be seen from the chart and manages to biography letter, resolving power
It is good, high resolution, it is seen that please refer to Figure 14 and 15 with the confocal property of infrared 850nm, it can be seen that visible light and infrared confocal property are good,
The infrared offset IR shift < 13um of 850nm, the curvature of field and distortion figure are detailed in Figure 16 (A) and Figure 16 (B), it can be seen that and distortion is small,
It is almost undistorted.
In this specific embodiment, the focal length f=5.41mm of optical imaging lens；F-number FNO=2.79；Image planes size Ф
=7.73mm；Field angle FOV=72.3.
Implement four
The present embodiment is identical as the face type bumps and refractive index of each lens of embodiment one, only the curvature of each lens surface
The optical parameters such as radius, lens thickness are different.
The detailed optical data of this specific embodiment are as shown in table 4-1.
The detailed optical data of table 4-1 example IV
| Surface | Radius of curvature | Thickness | Material | Refractive index | Abbe number | Focal length | |
| - | Object plane shot | Infinity | Infinity | ||||
| 11 | First lens | 13.847 | 1.807 | H-ZK9B | 1.62 | 60.37 | 32.00 |
| 12 | 43.103 | 0.100 | |||||
| 21 | Second lens | 6.227 | 0.750 | H-ZK10L | 1.62 | 56.95 | -10.37 |
| 22 | 3.028 | 1.246 | |||||
| 31 | The third lens | 7.972 | 0.595 | H-QF6A | 1.53 | 48.85 | -7.90 |
| 34 | 2.689 | 1.411 | |||||
| 41 | 4th lens | 11.535 | 2.982 | H-ZF12 | 1.76 | 26.61 | 15.01 |
| 42 | Infinity | 0.000 | |||||
| - | Diaphragm | Infinity | 0.025 | 5.50 | |||
| 51 | 5th lens | Infinity | 2.893 | TAFD25 | 1.90 | 31.32 | |
| 52 | -5.010 | 0.098 | 6.42 | ||||
| 61 | 6th lens | -40.670 | 1.449 | FCD515 | 1.59 | 68.62 | |
| 62 | -3.539 | 0 | |||||
| 71 | 7th lens | -3.539 | 0.555 | H-ZF52 | 1.85 | 23.79 | -3.14 |
| 72 | 11.888 | 0.328 | |||||
| 81 | 8th lens | 144.353 | 1.918 | H-LAF1 | 1.69 | 49.23 | 10.01 |
| 82 | -7.288 | 0.157 | |||||
| 91 | 9th lens | -150.939 | 1.040 | H-LAF50B | 1.77 | 49.61 | 31.37 |
| 92 | -21.029 | 0.098 | |||||
| 101 | Tenth lens | 17.737 | 1.128 | TAFD40 | 2.00 | 25.45 | 32.548 |
| 102 | 37.292 | 2.087 | |||||
| 110 | Optical filter | Infinity | 0.300 | H-K9L | 1.52 | 64.21 | Infinity |
| - | Infinity | 3.920 | |||||
| 130 | Protect glass | Infinity | 0.400 | H-K9L | 1.52 | 64.21 | Infinity |
| - | Infinity | 0.100 | |||||
| 130 | Imaging surface | Infinity |
The numerical value of each conditional expression of this specific embodiment please refers to Figure 22.
The resolving power of this specific embodiment please refers to Figure 17 and 18, can be seen from the chart and manages to biography letter, resolving power
It is good, high resolution, it is seen that please refer to Figure 19 and 20 with the confocal property of infrared 850nm, it can be seen that visible light and infrared confocal property are good,
The infrared offset IR shift < 13um of 850nm, the curvature of field and distortion figure are detailed in Figure 21 (A) and Figure 21 (B), it can be seen that and distortion is small,
It is almost undistorted.
In this specific embodiment, the focal length f=5.4mm of optical imaging lens；F-number FNO=2.78；Image planes size Ф
=7.71mm；Field angle FOV=71.6.
The present invention uses ten lens, and by the refractive index and concave-convex curved surface arrangement design to each lens, has
Distort small, almost undistorted, image planes are big, be greater than 7.7mm the advantages of.In addition, the present invention also has big visual field color difference small, color is also
Originality is strong；It is managed to letter is passed, high-resolution, height parsing, image sharpness is high, image uniform；It is low good according to characteristic, it is bad in light
Under situation, clearly color image can also be realized；Infrared defocus smaller (the infrared offset IR shift < 13um of 850nm) it is excellent
Point.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of optical imaging lens, it is characterised in that: from object side to image side along an optical axis successively include the first lens, second thoroughly
Mirror, the third lens, the 4th lens, diaphragm, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth
Lens；First lens to the tenth lens respectively include one towards object side and the object side for passing through imaging ray and a direction
Image side and the image side surface for passing through imaging ray；
First lens have positive refractive index, and the object side of first lens is convex surface, and the image side surface of first lens is concave surface；
Second lens have negative refractive index, and the object side of second lens is convex surface, and the image side surface of second lens is concave surface；
The third lens have negative refractive index, and the object side of the third lens is convex surface, and the image side surface of the third lens is concave surface；
4th lens have positive refractive index, and the object side of the 4th lens is convex surface；
5th lens have positive refractive index, and the image side surface of the 5th lens is convex surface；
6th lens have positive refractive index, and the object side of the 6th lens is concave surface, and the image side surface of the 6th lens is convex surface；
7th lens have negative refractive index, and the object side of the 7th lens is concave surface, and the image side surface of the 7th lens is concave surface；
The object side of the image side surface and the 7th lens of 6th lens is mutually glued；
8th lens have positive refractive index, and the object side of the 8th lens is convex surface, and the image side surface of the 8th lens is convex surface；
9th lens have positive refractive index, and the object side of the 9th lens is concave surface, and the image side surface of the 9th lens is convex surface；
Tenth lens have positive refractive index, and the object side of the tenth lens is convex surface, and the image side surface of the tenth lens is concave surface；
There are the optical imaging lens lens of refractive index there was only above-mentioned ten.
2. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: D22/R22
≤ 1.76, wherein D22 is the clear aperture of the image side surface of the second lens, and R22 is the radius of curvature of the image side surface of the second lens.
3. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: D32/R32
≤ 1.73, wherein D32 is the clear aperture of the image side surface of the third lens, and R32 is the radius of curvature of the image side surface of the third lens.
4. optical imaging lens according to claim 1, it is characterised in that: the image side surface of the 4th lens is plane.
5. optical imaging lens according to claim 4, it is characterised in that: the diaphragm is set up directly on the 4th lens
Image side surface on, the object sides of the 5th lens is plane.
6. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: 2 < | R67 |
< 4, wherein R67 is the radius of curvature of the cemented surface of the 6th lens and the 7th lens.
7. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: 1.55 <
Nd1 < 1.7,55 < vd1 < 67；1.55 < nd2 < 1.7,50 < vd2 < 59；1.48 < nd3 < 1.57,45 < vd3 < 52；1.68<nd4<
1.8,20 < vd4 < 31；1.86 < nd5 < 1.95,27 < vd5 < 36；1.53 < nd6 < 1.61,62 < vd6 < 73；1.8 < nd7 < 1.9,18 <
vd7<29；1.6 < nd8 < 1.75,43 < vd8 < 57；1.7 < nd9 < 1.85,42 < vd9 < 56；1.9 < nd10 < 2.15,16 < vd10 <
28, wherein nd1-nd10 respectively indicates first lens to the tenth lens in the refractive index of d line, and vd1-vd10 respectively indicates this
Abbe number of first lens to the tenth lens in d line.
8. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: 2.7 < ALG
< 4.2, wherein ALG is the air gap summation of first lens to the tenth lens on the optical axis.
9. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: 14 < ALT <
16, wherein ALT is the summation of ten lens thickness of first lens to the tenth lens on the optical axis.
10. optical imaging lens according to claim 1, which is characterized in that the optical imaging lens also meet: 4.1 <
ALT/ALG < 4.5, wherein ALG is the air gap summation of first lens to the tenth lens on the optical axis, and ALT is should
The summation of ten lens thickness of first lens to the tenth lens on the optical axis.
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| CN201910242801.1A CN109799597B (en) | 2019-03-28 | 2019-03-28 | Optical imaging lens |
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