CN206920685U - High definition wide-angle optics and its camera module of application - Google Patents
High definition wide-angle optics and its camera module of application Download PDFInfo
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- CN206920685U CN206920685U CN201720582400.7U CN201720582400U CN206920685U CN 206920685 U CN206920685 U CN 206920685U CN 201720582400 U CN201720582400 U CN 201720582400U CN 206920685 U CN206920685 U CN 206920685U
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Abstract
The utility model embodiment discloses a kind of high definition wide-angle optics, is sequentially provided with along optical axis from object plane to image planes：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens；Wherein, the 5th lens and the 6th lens are mutually glued forms compound lens, and meets TTL/EFL≤7.5, wherein TTL be the first lens object plane side summit of optical system the distance between to imaging surface, EFL is the effective focal length of optical system.On the other hand, the utility model embodiment additionally provides a kind of camera module.The utility model embodiment, it is mainly made up of six pieces of lens, and lens piece number is few, simple in construction；Being mutually combined using different lens makes focal power distribution reasonable, and the 5th lens and the 6th lens are balsaming lens, the utility model is had the optical properties such as large aperture, high pixel, low distortion and good athermal.
Description
Technical field：
The camera module of a kind of optical system and its application is the utility model is related to, it is especially a kind of to be made up of six pieces of eyeglasses
High definition wide-angle optics and its application vehicle-mounted pick-up module.
Background technology：
With the application and popularization of automobile safety driving system, vehicle-mounted pick-up module has also obtained commonly used.And apply
In the camera module requirement of in-car security monitoring adapt under daytime and night environment can blur-free imaging, therefore camera module needs
Consider day and night infrared confocal；Meanwhile in order to meet that the details of passenger inside the vehicle recognizes, therefore camera module need to possess it is higher clear
Clear degree.Existing optical system or camera module are to meet the defects of above-mentioned requirements generally existing eyeglass is excessive, complicated.
The content of the invention：
To overcome existing optical system or camera module the problem of eyeglass is excessive, complicated to be present, the utility model is real
Apply example and on the one hand provide a kind of high definition wide-angle optics.
High definition wide-angle optics, it is sequentially provided with along optical axis from object plane to image planes：It is first lens, the second lens, the 3rd saturating
Mirror, the 4th lens, the 5th lens and the 6th lens；
The object plane side of first lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 3rd lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 4th lens is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 6th lens is concave surface, and image planes side is convex surface, and its focal power is negative；
Wherein, the 5th lens and the mutually glued formation compound lens of the 6th lens, and meet TTL/EFL≤7.5, wherein
TTL be the first lens object plane side summit of optical system the distance between to imaging surface, EFL is the effective focal length of optical system.
On the other hand, the utility model embodiment additionally provides a kind of camera module.
Camera module, including at least optical lens, high definition wide-angle optics described above is installed in optical lens.
The utility model embodiment, it is mainly made up of six pieces of lens, and lens piece number is few, simple in construction；Using different saturating
Mirror, which is mutually combined, makes focal power distribution reasonable, and the 5th lens and the 6th lens are balsaming lens, has the utility model big
The optical properties such as aperture, high pixel, low distortion and good athermal.
Brief description of the drawings：
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of optical system of the present utility model or camera module；
Fig. 2 is the distortion curve figure of optical system of the present utility model or camera module at+25 DEG C；
Fig. 3 is the MTF curve figure of optical system of the present utility model or camera module at+25 DEG C；
Fig. 4 is the relative illumination figure of optical system of the present utility model or camera module at+25 DEG C；
Fig. 5 is the MTF curve figure of optical system of the present utility model or camera module at -40 DEG C；
Fig. 6 is the MTF curve figure of optical system of the present utility model or camera module at+85 DEG C.
Embodiment：
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
As shown in figure 1, a kind of high definition wide-angle optics, 8 it is sequentially provided with from object plane to image planes along optical axis：First lens 1,
Second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5 and the 6th lens 6.
The object plane side of first lens 1 is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 3rd lens 3 is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 4th lens 4 is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 6th lens 6 is concave surface, and image planes side is convex surface, and its focal power is negative；
Wherein, the 5th lens 5 and the mutually glued formation compound lens of the 6th lens 6, and meet TTL/EFL≤7.5, wherein
TTL be the object plane side summit of the first lens 1 of optical system the distance between to imaging surface 8, EFL is effective Jiao of optical system
Away from.
The utility model embodiment, it is mainly made up of six pieces of lens, and lens piece number is few, simple in construction；Using different saturating
Mirror, which is mutually combined, makes focal power distribution reasonable, and the 5th lens and the 6th lens are balsaming lens, has the utility model big
The optical properties such as aperture, high pixel, low distortion and good athermal.
Further, the following condition of the satisfaction of the optical system：(1)5<f56<15；(2)-3.0<f56/f<-1.0；Its
In, f56 is the focal length after the 5th lens 5 combine with the 6th lens 6, and f is the focal length of whole optical system, and its value is EFL.Knot
Structure simple and compact, it is ensured that good optical property.
Yet further, each lens of the optical system meet following condition：(1)-10<f1<-2；(2)-10<f2<-2；
(3)-60<f3<-20；(4)2<f4<5；(5)2<f5<5；(6)-5<f6<-2；Wherein, f1 is the focal length of the first lens 1, f2 the
The focal length of two lens 2, f3 be the 3rd lens 3 focal length, f4 be the 4th lens 4 focal length, f5 be the 5th lens 5 focal length, f6
For the focal length of the 6th lens 6.Be mutually combined using different lens and reasonable distribution focal power realize large aperture, high pixel,
The optical property such as low distortion and good athermal.
Further, each lens of the optical system meet following condition：(1)-5.0<f1/f<-1.5；(2)-5.0<
f2/f<-1.5；(3)-30<f3/f<-10；(4)0.8<f4/f<1.7；(5)0.8<f5/f<1.7；(6)2.0<f6/f<3.2.Adopt
It is mutually combined with different lens and reasonable distribution focal power realizes large aperture, high pixel, low distortion and good athermal etc.
Optical property.
Specifically, the Refractive Index of Material Nd1 of the first lens 1, material Abbe constant Vd1 meet：1.74<Nd1<1.90 37<
Vd1<55.Good optical property can be ensured.
Again specifically, the Refractive Index of Material Nd2 of the second lens 2, material Abbe constant Vd2 meet：1.74<Nd2<1.90
37<Vd2<55.Good optical property can be ensured.
Further, the Refractive Index of Material Nd3 of the 3rd lens 3, material Abbe constant Vd3 meet：1.75<Nd3<1.95
17<Vd3<40.Good optical property can be ensured.
Yet further, the Refractive Index of Material Nd4 of the 4th lens 4, material Abbe constant Vd4 meet：1.64<Nd4<
1.90 37<Vd4<60.Good optical property can be ensured.
Further, the Refractive Index of Material Nd5 of the 5th lens 5, material Abbe constant Vd5 meet：1.60<Nd5<
1.85 40<Vd5<60；Good optical property can be ensured.
Further, the Refractive Index of Material Nd6 of the 6th lens 6, material Abbe constant Vd6 meet：1.75<Nd6<
1.95 17<Vd6<40.Good optical property can be ensured.
Yet further, the diaphragm 7 of optical system is arranged between the 3rd lens 3 and the 4th lens 4.It is simple in construction, use
To adjust the intensity of light beam.
Specifically, in the present embodiment, the focal length f of this optical system is 1.97mm, and stop index FNo. is 2.0, visual field
ω=150 ° of angle 2, " the high definition Sensor that is suitable for 1/4.Every basic parameter of this optical system is as shown in the table：
| Surface | Radius of curvature R (mm) | Thickness D (mm) | Refractive index Nd | Dispersion values Vd |
| S1 | 17.00 | 0.70 | 1.80 | 46.56 |
| S2 | 3.05 | 1.00 | ||
| S3 | 5.00 | 0.89 | 1.77 | 49.61 |
| S4 | 2.05 | 0.80 | ||
| S5 | 3.55 | 2.15 | 1.92 | 20.88 |
| S6 | 2.35 | 0.50 | ||
| S7 | INFINITY | 0.00 | ||
| S8 | 3.20 | 2.50 | 1.67 | 55.55 |
| S9 | -3.20 | 0.10 | ||
| S10 | 7.00 | 1.90 | 1.80 | 46.56 |
| S11 | -2.00 | 0.40 | 1.92 | 20.88 |
| S12 | -15.00 | 2.00 | ||
| S13 | INFINITY | 0.40 | 1.51 | 64.21 |
| S14 | INFINITY | 1.117 | ||
| S15 | INFINITY | - |
In upper table, along optical axis 8 from object plane to image planes, S1, S2 correspond to two surfaces of the first lens 1；S3, S4 are corresponded to
Two surfaces of the second lens 2；S5, S6 correspond to two surfaces of the 3rd lens 3；Where S7 correspondence system aperture diaphragms STO
Position；S8, S9 correspond to two surfaces of the 4th lens 4；S10, S11 correspond to two surfaces of the 5th lens 5；S11, S12
Correspond to two surfaces of the 6th lens 6；S13, S14 correspond to two of the protective glass between the 6th lens 6 and image planes 8
Individual surface；S15 corresponds to Sensor imaging surfaces 8.
The optical system in the present embodiment is can be seen that in from Fig. 2 to Fig. 6, is mutually combined and closes using different lens
Reason distribution focal power realizes the optical properties such as large aperture, high pixel, low distortion and good athermal.
A kind of camera module, including at least optical lens, high definition wide angle optical described above is installed in optical lens
System.
The camera module of the utility model embodiment, realized greatly using different lens combinations and reasonable distribution focal power
The optical properties such as aperture, high pixel, low distortion and good athermal.
It is to combine one or more embodiments that particular content provides as described above, does not assert tool of the present utility model
Body is implemented to be confined to these explanations.It is all approximate with method of the present utility model, structure etc., identical or new for this practicality
Some technology deduction or replace are made under type concept thereof, should all be considered as the scope of protection of the utility model.
Claims (10)
1. high definition wide-angle optics, it is sequentially provided with along optical axis from object plane to image planes：First lens, the second lens, the 3rd lens,
4th lens, the 5th lens and the 6th lens；Characterized in that,
The object plane side of first lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 3rd lens is convex surface, and image planes side is concave surface, and its focal power is negative；
The object plane side of 4th lens is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 6th lens is concave surface, and image planes side is convex surface, and its focal power is negative；
Wherein, the 5th lens and the mutually glued formation compound lens of the 6th lens, and meet TTL/EFL≤7.5, wherein TTL is
The distance between to imaging surface, EFL is the effective focal length of optical system on first lens object plane side summit of optical system.
2. high definition wide-angle optics according to claim 1, it is characterised in that the optical system meets following condition：
(1)5<f56<15；
(2)-3.0<f56/f<-1.0；
Wherein, f56 is the focal length after the 5th lens and the 6th lens combination, and f is the focal length of whole optical system.
3. high definition wide-angle optics according to claim 1 or 2, it is characterised in that each lens of the optical system are expired
The following condition of foot：
(1)-10<f1<-2；
(2)-10<f2<-2；
(3)-60<f3<-20；
(4)2<f4<5；
(5)2<f5<5；
(6)-5<f6<-2；
Wherein, f1 is the focal length of the first lens, and f2 is the focal length of the second lens, and f3 is the focal length of the 3rd lens, and f4 is the 4th saturating
The focal length of mirror, f5 are the focal length of the 5th lens, and f6 is the focal length of the 6th lens.
4. high definition wide-angle optics according to claim 1 or 2, it is characterised in that each lens of the optical system are expired
The following condition of foot：
(1)-5.0<f1/f<-1.5；
(2)-5.0<f2/f<-1.5；
(3)-30<f3/f<-10；
(4)0.8<f4/f<1.7；
(5)0.8<f5/f<1.7；
(6)2.0<f6/f<3.2；
Wherein, f1 is the focal length of the first lens, and f2 is the focal length of the second lens, and f3 is the focal length of the 3rd lens, and f4 is the 4th saturating
The focal length of mirror, f5 are the focal length of the 5th lens, and f6 is the focal length of the 6th lens, and f is the focal length of whole optical system.
5. high definition wide-angle optics according to claim 1 or 2, it is characterised in that the Refractive Index of Material of the first lens
Nd1, material Abbe constant Vd1 meet：1.74<Nd1<1.90 37<Vd1<55.
6. high definition wide-angle optics according to claim 1 or 2, it is characterised in that the Refractive Index of Material of the second lens
Nd2, material Abbe constant Vd2 meet：1.74<Nd2<1.90 37<Vd2<55.
7. high definition wide-angle optics according to claim 1 or 2, it is characterised in that the Refractive Index of Material of the 3rd lens
Nd3, material Abbe constant Vd3 meet：1.75<Nd3<1.95 17<Vd3<40.
8. high definition wide-angle optics according to claim 1 or 2, it is characterised in that the Refractive Index of Material of the 4th lens
Nd4, material Abbe constant Vd4 meet：1.64<Nd4<1.90 37<Vd4<60.
9. high definition wide-angle optics according to claim 1 or 2, it is characterised in that the Refractive Index of Material of the 5th lens
Nd5, material Abbe constant Vd5 meet：1.60<Nd5<1.85 40<Vd5<60；And/or the 6th lens Refractive Index of Material Nd6,
Material Abbe constant Vd6 meets：1.75<Nd6<1.95 17<Vd6<40.
10. camera module, including at least optical lens, it is characterised in that any one of claim 1-9 is provided with optical lens
Described high definition wide-angle optics.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990507A (en) * | 2017-05-24 | 2017-07-28 | 广东弘景光电科技股份有限公司 | High definition wide-angle optics and its camera module of application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106990507A (en) * | 2017-05-24 | 2017-07-28 | 广东弘景光电科技股份有限公司 | High definition wide-angle optics and its camera module of application |
| CN106990507B (en) * | 2017-05-24 | 2022-05-31 | 广东弘景光电科技股份有限公司 | High-definition wide-angle optical system and camera module applying same |
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