CN208818918U - A kind of novel wide-angle imaging lens optical system - Google Patents
A kind of novel wide-angle imaging lens optical system Download PDFInfo
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- CN208818918U CN208818918U CN201821255577.7U CN201821255577U CN208818918U CN 208818918 U CN208818918 U CN 208818918U CN 201821255577 U CN201821255577 U CN 201821255577U CN 208818918 U CN208818918 U CN 208818918U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 73
- 238000003384 imaging method Methods 0.000 title claims abstract description 50
- 239000004568 cement Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 6
- 230000005499 meniscus Effects 0.000 claims abstract description 5
- 230000004075 alteration Effects 0.000 abstract description 6
- 238000012937 correction Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of novel wide-angle imaging lens optical systems, the main points of its technical scheme are that being successively arranged the first lens, diaphragm, the second lens, the third lens, the 4th lens, chip protection glass from object plane to image planes.First lens are the meniscus lens with negative diopter, and material is plastic cement, and the second lens are positive lens, and material is plastic cement, and the third lens are positive lens, and material is plastic cement, and the 4th lens are negative lens, and material is plastic cement.The first lens of the utility model and the second lens, the third lens and the 4th lens negative lens and positive lens are combined with each other, and are conducive to aberration correction.It is mutually compensated by adjusting each power of lens.Be conducive to reduce overall length, and ensure that biggish field angle on this basis, eyeglass spacing very little is conducive to reduction system overall length.
Description
[technical field]
The utility model relates to a kind of novel wide-angle imaging lens optical systems.
[background technique]
With social development, scientific and technological progress, more and more high-end science and technology products are moved into people's lives, and mobile phone is clapped
Have become a kind of fashion according to, photography, as will be used wider and wider for camera is general, especially in mobile phone camera, vehicle-mounted
The industries such as camera lens, safe imaging monitoring and electronic entertainment are also increased accordingly using the camera lens of infrared band, commonly only relate to use
Demand has been unable to satisfy in the lens for receiving visible light.
With the development of chip technology, the size of minimum pixel unit is smaller and smaller, and pixel is higher and higher, drives camera lens
Head develops towards high pixel, ultra thin dimensions and big visual field angular direction.But existing optical system field of view angle is smaller, optical system
Overall length is longer.
The utility model is namely based on what such case was made.
[utility model content]
The utility model aim is to overcome the deficiencies in the prior art, provides a kind of wide-angle image with larger field angle
Lens optical system, can effectively shorten the total length of system, reduce the susceptibility of system, obtain good image quality, simultaneously
It can be used for infrared optical system regions.
The utility model is achieved through the following technical solutions:
A kind of novel wide-angle imaging lens optical system, it is characterised in that: be successively arranged the first lens from object plane to image planes
E1, diaphragm ST0, the second lens E2, the third lens E3, the 4th lens E4, chip protect glass E5；
First lens E1 is the meniscus lens with negative diopter, and material is plastic cement, and focal length meets -1.8 < f1/f < 0；The
Two lens E2 are positive lens, and material is plastic cement, and focal length meets 1.02 < f2/f < 1.62；The third lens E3 is positive lens, and material is
Plastic cement, focal length meet 0.89 < f3/f < 1.86；4th lens E4 is negative lens, and material is plastic cement, and focal length meets -1.56 < f4/
f<0；
Wherein f1 is the focal length of the first lens E1, and f2 is the focal length of the second lens E2, and f3 is the focal length of the third lens E3, f4
For the focal length of the 4th lens E4, f is the effective focal length of the imaging lens.
Novel wide-angle imaging lens optical system as described above, it is characterised in that: each lens all have object side and
Image side surface, the first lens object side S2 are convex surface, and aspherical for Qcon, and the first lens image side surface S3 is concave surface plastic cement material,
And to be aspherical, the Qcon is aspherical to refer to that the Q type for deviateing corresponding conical surface is aspherical；
Second lens object side S5 is convex surface, and to be aspherical, and the second lens image side surface S6 is convex surface, and is aspherical；
The third lens object side S7 is convex surface, and to be aspherical, and the third lens image side surface S8 is convex surface, and is aspherical；
4th lens object side S9 is concave surface, and to be aspherical, and the 4th lens image side surface S10 is concave surface, and is aspheric
Face.
Novel wide-angle imaging lens optical system as described above, it is characterised in that the optical system meets relational expression:
2.89<TTL/f<3.10；Wherein, TTL is distance on the first lens object side S2 to the axis of imaging surface；F is the imaging lens
Effective focal length.
Novel wide-angle imaging lens optical system as described above, it is characterised in that the optical system meets relational expression:
0.005<T34/f<0.015；Wherein, T34 is the third lens E3 and air spacing of the 4th lens E4 on optical axis.
Novel wide-angle imaging lens optical system as described above, it is characterised in that the optical system meets relational expression :-
0.4<TDS/f1<-0.12；Wherein, TDS is aperture diaphragm bore, and f1 is the focal length of the first lens E1.
Novel wide-angle imaging lens optical system as described above, it is characterised in that: diaphragm ST0 is located at first lens
Between image side surface S3 and the second lens object side S5, and meet following relationship:
0.025<AAD<0.04；
As DI < 0.8*MDI, 0.025 < OAD < 0.38；
TTL<10；
110°<FOV<130°；
Wherein, AAD be the air spacing of the third lens E3 and the 4th lens E4 on optical axis, OAD be the third lens E3 and
4th lens E4 is being parallel to optical axis rather than air spacing on the straight line of optical axis, and DI is the third lens E3 close to the third lens picture
The aspherical diameter perpendicular to optical axis direction of side S8, MDI are maximum effective diameter, and TTL is the first lens object side surface S2
To distance of the imaging surface on optical axis, FOV is the imaging lens maximum field of view angle.
Novel wide-angle imaging lens optical system as described above, it is characterised in that the optical system meets relational expression:
0.25<T1/∑T<0.45；
0.01<T2/∑T<0.21；
0.10<T3/∑T<0.50；
0.03<T4/∑T<0.25；
Wherein, ∑ T be the first lens E1, the second lens E2, the third lens E3, the 4th lens E4 it is saturating on optical axis respectively
Summation of the mirror thickness on optical axis, T1, T2, T3, T4 be respectively the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
Lens thickness of the mirror E4 on optical axis.
Compared with prior art, the utility model has the following advantages:
1, the first lens of the utility model and the second lens, the third lens and the 4th lens negative lens and positive lens mutually group
It closes, is conducive to aberration correction.It is mutually compensated by adjusting each power of lens.Be conducive to reduce overall length, and in this base
It ensure that biggish field angle, eyeglass spacing very little are conducive to reduction system overall length on plinth.
2, the utility model imaging lens have smaller aperture-coefficient, are conducive to improve image quality and overall brightness.
[Detailed description of the invention]
Fig. 1 is the utility model imaging lens optical system structure schematic diagram；
Fig. 2 is the astigmatism figure of the utility model imaging lens optical system；
Fig. 3 is the distortion figure of the utility model imaging lens optical system；
Fig. 4 is the axial chromatic aberration figure of the utility model imaging lens optical system；
Fig. 5 is the chromatic longitudiinal aberration figure of the utility model imaging lens optical system.
[specific embodiment]
The utility model technical characteristic is described in further detail in order to the field technology people with reference to the accompanying drawing
Member it will be appreciated that.
A kind of novel wide-angle imaging lens optical system, from object plane to image planes be successively arranged the first lens E1, diaphragm ST0,
Second lens E2, the third lens E3, the 4th lens E4, chip protect glass E5；
First lens E1 is the meniscus lens with negative diopter, and material is plastic cement, and focal length meets -1.8 < f1/f < 0；
Second lens E2 is positive lens, and material is plastic cement, and focal length meets 1.02 < f2/f < 1.62；
The third lens E3 is positive lens, and material is plastic cement, and focal length meets 0.89 < f3/f < 1.86；
4th lens E4 is negative lens, and material is plastic cement, and focal length meets -1.56 < f4/f < 0.
Wherein f1 is the focal length of the first lens E1, and f2 is the focal length of the second lens E2, and f3 is the focal length of the third lens E3, f4
For the focal length of the 4th lens E4, f is the effective focal length of the imaging lens.
First lens E1 is the meniscus lens with negative diopter, is conducive to more collect information.First lens E1
It is combined with each other with the second lens E2, the third lens E3 and the 4th lens E4 negative lens and positive lens, is conducive to aberration correction.Pass through
Each power of lens is adjusted to mutually compensate.Be conducive to reduce overall length, and ensure that biggish field angle on this basis.
Novel wide-angle imaging lens optical system as described above, each lens all have object side and image side surface, chip
It protects glass object side and image side surface is respectively S11 and S12.
First lens object side S2 is convex surface, and aspherical for Qcon, and the first lens image side surface S3 is concave surface plastic cement material
Matter, and to be aspherical, the Qcon is aspherical to refer to that the Q type for deviateing corresponding conical surface is aspherical, and Qcon is aspherical for Q
The aspherical one kind of type；
Second lens object side S5 is convex surface, and to be aspherical, and the second lens image side surface S6 is convex surface, and is aspherical；
The third lens object side S7 is convex surface, and to be aspherical, and the third lens image side surface S8 is convex surface, and is aspherical；
4th lens object side S9 is concave surface, and to be aspherical, and the 4th lens image side surface S10 is concave surface, and is aspheric
Face.
Novel wide-angle imaging lens optical system as described above, the optical system meet relational expression: 2.89 < TTL/f <
3.10；Wherein, TTL is distance on the first lens object side S2 to the axis of imaging surface；F is the effective focal length of the imaging lens.
Such as: TTL design value is 9.5, f1 design value -5.5, f2 design value 3.65, f3 design value 4.57, f4 design value -
4.36, f design values 3.15；Wherein, f1 is the effective focal length of the first lens E1, and f2 is the effective focal length of the second lens E2, and f3 is
The effective focal length of the third lens E3, f4 are the effective focal length of the 4th lens E4, and TTL is that the first lens object side S2 is extremely imaged
Distance on the axis in face；F is the effective focal length of the imaging lens, and the value after actual processing will be a certain deviation with design value, but only
Meet relational expression: 2.89 < TTL/f < 3.10 are just.
Novel wide-angle imaging lens optical system as described above, the optical system meet relational expression: 0.005 < T34/f <
0.015；Wherein, T34 is the third lens E3 and air spacing of the 4th lens E4 on optical axis.Eyeglass spacing very little, has
Conducive to reduction system overall length.
Novel wide-angle imaging lens optical system as described above, the optical system meet relational expression: -0.4 < TDS/f1 < -
0.12；Wherein, TDS is aperture diaphragm bore, and f1 is the focal length of the first lens E1.
The imaging lens have smaller aperture-coefficient, are conducive to improve image quality and overall brightness.
Novel wide-angle imaging lens optical system as described above, diaphragm ST0 are located at the first lens image side surface S3 and the
Between two lens object side S5, and meet following relationship:
0.025<AAD<0.04；
As DI < 0.8*MDI, 0.025 < OAD < 0.38；
TTL<10；
110°<FOV<130°；
Wherein, AAD be the air spacing of the third lens E3 and the 4th lens E4 on optical axis, OAD be the third lens E3 and
4th lens E4 is being parallel to optical axis rather than air spacing on the straight line of optical axis, and DI is the third lens E3 close to the third lens picture
The aspherical diameter perpendicular to optical axis direction of side S8, MDI are maximum effective diameter, and TTL is the first lens object side surface S2
To distance of the imaging surface on optical axis, FOV is the imaging lens maximum field of view angle.
Novel wide-angle imaging lens optical system as described above, the optical system meet relational expression:
0.25<T1/∑T<0.45；
0.01<T2/∑T<0.21；
0.10<T3/∑T<0.50；
0.03<T4/∑T<0.25；
Wherein, ∑ T be the first lens E1, the second lens E2, the third lens E3, the 4th lens E4 it is saturating on optical axis respectively
Summation of the mirror thickness on optical axis, T1, T2, T3, T4 be respectively the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
Lens thickness of the mirror E4 on optical axis.
The thickness for controlling each lens is conducive to aberration correction and mutually compensate, can reduce tolerance sensitivities and
Reduce the difficulty in forming process.Be conducive to reduce camera lens overall length simultaneously, realize ultrathin, the miniaturization of camera lens.
Following table is the lens data table of embodiment
Table 1 is the structural parameters table of the utility model imaging lens.
| Surface number | Surface type | Radius/(mm) | Thickness/(mm) | Glass |
| Object plane | Spherical surface | Infinity | Infinity | |
| S2 | It is aspherical | 396.9756 | 0.8092 | 1.526:55.707 |
| S3 | It is aspherical | 2.8773 | 2.2099 | |
| Diaphragm face | Spherical surface | Infinity | 0.0504 | |
| S5 | It is aspherical | 5.0150 | 0.8735 | 1.535:56.170 |
| S6 | It is aspherical | -3.0145 | 1.0288 | |
| S7 | It is aspherical | 13.8854 | 1.3859 | 1.535:56.170 |
| S8 | It is aspherical | -2.8673 | 0.0300 | |
| S9 | It is aspherical | 141.4042 | 1.3236 | 1.620:22.375 |
| S10 | It is aspherical | 2.6418 | 0.2887 | |
| S11 | Spherical surface | Infinity | 0.3000 | 1.518:64.166 |
| S12 | Spherical surface | Infinity | 1.2000 | |
| Imaging surface | Spherical surface | Infinity | 0.1146 |
Table 1
Table 2 is the ratio range of each aspherical rise and radius R of the first lens E1 and the second lens E2.
Table 2
Table 3 is the ratio range of each aspherical rise and radius R of the third lens 3 and the 4th lens 4.
Table 3
Embodiment described in the utility model is only the description carried out to preferred embodiments of the present invention, not
Utility model conception and scope is defined, under the premise of not departing from the design concept of the utility model, engineering in this field
The all variations and modifications that technical staff makes the technical solution of the utility model should all fall into the protection model of the utility model
It encloses.
Claims (7)
1. a kind of novel wide-angle imaging lens optical system, it is characterised in that: be successively arranged the first lens from object plane to image planes
(E1), diaphragm (ST0), the second lens (E2), the third lens (E3), the 4th lens (E4), chip protection glass (E5)；
First lens (E1) are the meniscus lens with negative diopter, and material is plastic cement, and focal length meets -1.8 < f1/f < 0；Second
Lens (E2) are positive lens, and material is plastic cement, and focal length meets 1.02 < f2/f < 1.62；The third lens (E3) are positive lens, material
For plastic cement, focal length meets 0.89 < f3/f < 1.86；4th lens (E4) are negative lens, and material is plastic cement, focal length meets -1.56 <
f4/f<0；
Wherein f1 is the effective focal length of the first lens (E1), and f2 is the effective focal length of the second lens (E2), and f3 is the third lens
(E3) effective focal length, f4 are the effective focal length of the 4th lens (E4), and f is the effective focal length of the imaging lens.
2. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that: each lens all have object
Side and image side surface, the first lens object side (S2) are convex surface, and aspherical for Qcon, and the first lens image side surface (S3) is concave surface
Plastic cement material, and to be aspherical, the Qcon is aspherical to refer to that the Q type for deviateing corresponding conical surface is aspherical；
Second lens object side (S5) is convex surface, and to be aspherical, and the second lens image side surface (S6) is convex surface, and is aspherical；
The third lens object side (S7) is convex surface, and to be aspherical, and the third lens image side surface (S8) is convex surface, and is aspherical；
4th lens object side (S9) is concave surface, and to be aspherical, and the 4th lens image side surface (S10) is concave surface, and is aspherical.
3. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that the optical system, which meets, closes
It is formula: 2.89 < TTL/f < 3.10；Wherein, TTL is distance on the first lens object side (S2) to the axis of imaging surface.
4. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that the optical system, which meets, closes
It is formula: 0.005 < T34/f < 0.015；Wherein, T34 is the air of the third lens (E3) and the 4th lens (E4) on optical axis
Spacing.
5. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that the optical system, which meets, closes
It is formula: -0.4 < TDS/f1 < -0.12；Wherein, TDS is aperture diaphragm bore, and f1 is the focal length of the first lens (E1).
6. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that: diaphragm (ST0) is located at should
Between first lens image side surface (S3) and the second lens object side (S5), and meet following relationship:
0.025<AAD<0.04；
As DI < 0.8*MDI, 0.025 < OAD < 0.38；
TTL<10；
110°<FOV<130°；
Wherein, AAD is the third lens (E3) and air spacing of the 4th lens (E4) on optical axis, and OAD is the third lens (E3)
Optical axis is being parallel to rather than air spacing on the straight line of optical axis with the 4th lens (E4), and DI is the third lens (E3) close to third
The aspherical diameter perpendicular to optical axis direction of lens image side surface (S8), MDI are maximum effective diameter, and TTL is the first lens object side
Distance of the face surface (S2) to imaging surface on optical axis, FOV are the imaging lens maximum field of view angle.
7. novel wide-angle imaging lens optical system according to claim 1, it is characterised in that the optical system, which meets, closes
It is formula:
0.25<T1/∑T<0.45；
0.01<T2/∑T<0.21；
0.10<T3/∑T<0.50；
0.03<T4/∑T<0.25；
Wherein, ∑ T is the first lens (E1), the second lens (E2), the third lens (E3), the 4th lens (E4) respectively on optical axis
Summation of the lens thickness on optical axis, T1, T2, T3, T4 are respectively the first lens (E1), the second lens (E2), the third lens
(E3), lens thickness of the 4th lens (E4) on optical axis.
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| CN201821255577.7U CN208818918U (en) | 2018-08-06 | 2018-08-06 | A kind of novel wide-angle imaging lens optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821255577.7U CN208818918U (en) | 2018-08-06 | 2018-08-06 | A kind of novel wide-angle imaging lens optical system |
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| CN208818918U true CN208818918U (en) | 2019-05-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693632A (en) * | 2018-08-06 | 2018-10-23 | 中山市众盈光学有限公司 | A kind of miniature wide-angle imaging lens optical system |
| CN111722364A (en) * | 2020-06-18 | 2020-09-29 | 江西致信光电科技有限公司 | A cost-effective glass-plastic hybrid lens that can withstand high and low temperatures |
| CN112946861A (en) * | 2021-02-05 | 2021-06-11 | 惠州市星聚宇光学有限公司 | Infrared lens and infrared imaging module |
| CN116338946A (en) * | 2023-03-21 | 2023-06-27 | 江苏敏而精密科技有限公司 | Aspherical lens, optical system having the same, and optical apparatus |
| CN117518419A (en) * | 2019-05-24 | 2024-02-06 | 浙江舜宇光学有限公司 | Optical imaging lens |
-
2018
- 2018-08-06 CN CN201821255577.7U patent/CN208818918U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693632A (en) * | 2018-08-06 | 2018-10-23 | 中山市众盈光学有限公司 | A kind of miniature wide-angle imaging lens optical system |
| CN108693632B (en) * | 2018-08-06 | 2023-10-24 | 中山市众盈光学有限公司 | Miniature wide-angle imaging lens optical system |
| CN117518419A (en) * | 2019-05-24 | 2024-02-06 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111722364A (en) * | 2020-06-18 | 2020-09-29 | 江西致信光电科技有限公司 | A cost-effective glass-plastic hybrid lens that can withstand high and low temperatures |
| CN112946861A (en) * | 2021-02-05 | 2021-06-11 | 惠州市星聚宇光学有限公司 | Infrared lens and infrared imaging module |
| CN112946861B (en) * | 2021-02-05 | 2023-02-24 | 惠州市星聚宇光学有限公司 | Infrared lens and infrared imaging module |
| CN116338946A (en) * | 2023-03-21 | 2023-06-27 | 江苏敏而精密科技有限公司 | Aspherical lens, optical system having the same, and optical apparatus |
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