CN206331173U - Large aperture high definition optical system and its camera lens of application - Google Patents
Large aperture high definition optical system and its camera lens of application Download PDFInfo
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- CN206331173U CN206331173U CN201621427861.9U CN201621427861U CN206331173U CN 206331173 U CN206331173 U CN 206331173U CN 201621427861 U CN201621427861 U CN 201621427861U CN 206331173 U CN206331173 U CN 206331173U
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Abstract
The utility model embodiment discloses a kind of large aperture high definition optical system, 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；The object plane side of first lens is convex surface, and image planes side is concave surface；Second lens are biconcave lens；3rd lens are biconvex lens；The object plane side of 4th lens is concave surface, and image planes side is convex surface；The object plane side of 5th lens is concave surface, and image planes side is convex surface；6th lens are biconvex lens；Wherein, the 4th lens and the 5th lens are compound lens, and meet TTL/EFL≤5.5.On the other hand, the utility model embodiment additionally provides a kind of camera lens.The utility model embodiment, it is mainly made up of six pieces of lens, and lens piece number is few, simple in construction；It is mutually combined using different lens, and the 4th lens and the 5th lens are balsaming lens, with optical properties such as large aperture, high pixel, low distortion and good athermals.
Description
Technical field：
The utility model is related to the camera lens of a kind of optical system and its application, especially a kind of light being made up of six pieces of eyeglasses
System and its on-vehicle lens of application.
Background technology：
With automobile assistant driving systematic difference and popularization, on-vehicle lens have also obtained commonly used.Due to vehicle-mounted mirror
Head requires to adapt to the complicated climatic environment of change and illumination condition, therefore camera lens needs larger clear aperature；Meanwhile, it is vehicle-mounted
Camera lens, which is also required that, can recognize path locus and traffic mark, therefore camera lens need to possess higher definition.To meet above-mentioned want
Ask, existing on-vehicle lens generally existing eyeglass is excessive, baroque defect.
The content of the invention：
To overcome the problem of existing optical system or camera lens have excessive eyeglass, complex structure, the utility model embodiment
On the one hand a kind of large aperture high definition optical system is provided.
Large aperture high definition optical system, 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；
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 concave 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 convex surface, and its focal power is just；
The object plane side of 4th lens is concave surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens is concave surface, and image planes side is convex surface, and its focal power is negative；
The object plane side of 6th lens is convex surface, and image planes side is convex surface, and its focal power is just；
Wherein, the 4th lens and the 5th lens are mutually glued forms compound lens, and meets TTL/EFL≤5.5, wherein
TTL for optical system the first lens object plane side summit 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 lens.
Large aperture high definition optical system described above is installed in a kind of camera lens, camera 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 is mutually combined, and the 4th lens and the 5th lens are balsaming lens, with large aperture, high pixel, low distortion and the heat that well disappears
The optical properties such as difference.
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 utility model embodiment
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 lens；
Fig. 2 is the distortion curve figure of optical system of the present utility model or camera lens at+25 DEG C；
Fig. 3 is the MTF curve figure of optical system of the present utility model or camera lens at+25 DEG C；
Fig. 4 is the relative illumination figure of optical system of the present utility model or camera lens at+25 DEG C；
Fig. 5 is the MTF curve figure of optical system of the present utility model or camera lens at -40 DEG C；
Fig. 6 is the MTF curve figure of optical system of the present utility model or camera lens at+85 DEG C.
Embodiment：
In order that technical problem, technical scheme and beneficial effect that the utility model is solved 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, large aperture high definition optical system, 9 it is sequentially provided with from object plane to image planes along optical axis：First lens 1,
Two 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 concave 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 convex surface, and its focal power is just；
The object plane side of 4th lens 4 is concave surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens 5 is concave surface, and image planes side is convex surface, and its focal power is negative；
The object plane side of 6th lens 6 is convex surface, and image planes side is convex surface, and its focal power is just；
Wherein, the 4th lens 4 and the mutually glued formation compound lens of the 5th lens 5, and meet TTL/EFL≤5.5, wherein
TTL for optical system the first lens object plane side summit the distance between to imaging surface, EFL is the effective focal length of optical system.
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 is mutually combined, and the 4th lens, the 5th lens are balsaming lens, with large aperture, high pixel, low distortion and good athermal
Etc. optical property.
Further, each lens of the optical system meet following condition：
(1)-10<f1<-2；
(2)-10<f2<-2；
(3)2<f3<10；
(4)2<f4<10；
(5)-10<f5<-2；
(6)5<f6<15；
(7)12<f45<30；
Wherein, f1 is the focal length of the first lens 1, and f2 is the focal length of the second lens 2, and f3 is the focal length of the 3rd lens 3, and f4 is
The focal length of 4th lens 4, f5 is the focal length of the 5th lens 5, and f6 is the focal length of the 6th lens 6, and f45 is the 4th lens 4 and the 5th
Focal length after the combination of lens 5.It is simple in construction, it is mutually combined using different lens, with large aperture, high pixel, low distortion and good
The optical properties such as good athermal.
Yet further, each lens of the optical system meet following condition：
(1)-2.0<f1/f<-1.2；
(2)-2.5<f2/f<-1.5；
(3)1.0<f3/f<2.0；
(4)0.8<f4/f<1.7；
(5)-2.2<f5/f<-1.2；
(6)2.0<f6/f<3.2；
(7)3.0<f45/f<5.0；
Wherein, f is the focal length of whole optical system, and f1 is the focal length of the first lens 1, and f2 is the focal length of the second lens 2, f3
For the focal length of the 3rd lens 3, f4 is the focal length of the 4th lens 4, and f5 is the focal length of the 5th lens 5, and f6 is Jiao of the 6th lens 6
Away from f45 is the focal length after the 4th lens 4 are combined with the 5th lens 5.Good optical property can be ensured.
Further, the Refractive Index of Material Nd1 of the first lens 1, material Abbe constant Vd1 are met：1.74<Nd1<1.90,
37<Vd1<55.It is simple in construction, it is ensured that good optical property.
Yet further, the Refractive Index of Material Nd2 of the second lens 2, material Abbe constant Vd2 are met：1.47<Nd2<
1.62,50<Vd2<80.It is simple in construction, it is ensured that good optical property.
Further, the Refractive Index of Material Nd3 of the 3rd lens 3, material Abbe constant Vd3 are met：1.75<Nd3<
1.95,17<Vd3<40.It is simple in construction, it is ensured that good optical property.
Further, the Refractive Index of Material Nd4 of the 4th lens 4, material Abbe constant Vd4 are met：1.55<Nd4<
1.68,45<Vd4<70.It is simple in construction, it is ensured that good optical property.
Further, the Refractive Index of Material Nd5 of the 5th lens 5, material Abbe constant Vd5 are met：1.75<Nd5<
1.95,17<Vd5<35.It is simple in construction, it is ensured that good optical property.
Yet further, the Refractive Index of Material Nd6 of the 6th lens 6, material Abbe constant Vd6 are met：1.75<Nd6<
1.95,35<Vd6<55.It is simple in construction, it is ensured that good optical property.
Further, the aperture diaphragm 7 of optical system is located between the 3rd lens 3 and the 4th lens 4, close to the 3rd lens
Side 3.It is simple in construction, for adjusting the intensity of light beam.
Further, optical filter 8 is provided between the 6th lens 6 and image planes 9, the optical filter 8 is used to filter in environment
Infrared light, to avoid producing red aeration phenomenon.
Specifically, in the present embodiment, the focal length f of this optical system is 3.65mm, and stop index FNo. is 1.70, visual field
ω=90.2 ° of angle 2, " the high definition Sensor that is suitable for 1/3.Every basic parameter of this optical system is as shown in the table：
In upper table, along optical axis 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；The institute of STO correspondence systems aperture diaphragm 7 is in place
Put；S8, S9 correspond to two surfaces of the 4th lens 4；S9, S10 correspond to two surfaces of the 5th lens 5；S11, S12 correspondence
For two surfaces of the 6th lens 6；S13, S14 correspond to two surfaces of optical filter 8；S15 corresponds to image planes 9.
As can be seen that the optical system in the present embodiment has extraordinary athermal performance in from Fig. 2 to Fig. 6.
Large aperture high definition optical system described above is installed in a kind of camera lens, camera lens.
Above-mentioned large aperture high definition optical system and its camera lens of application are burnt using different lens combinations and reasonable distribution light
Degree realizes the optical properties such as large aperture, high pixel, low distortion and good athermal.
It is to combine one or more embodiments that particular content is provided 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 protection domain of the present utility model.
Claims (10)
1. large aperture high definition optical system, 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；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 concave 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 convex surface, and its focal power is just；
The object plane side of 4th lens is concave surface, and image planes side is convex surface, and its focal power is just；
The object plane side of 5th lens is concave surface, and image planes side is convex surface, and its focal power is negative；
The object plane side of 6th lens is convex surface, and image planes side is convex surface, and its focal power is just；
Wherein, the 4th lens and the 5th lens are mutually glued forms compound lens, and meets TTL/EFL≤5.5, and wherein TTL is
First lens object plane side summit of optical system is the distance between to imaging surface, and EFL is the effective focal length of optical system.
2. high definition optical system in large aperture according to claim 1, it is characterised in that each lens of the optical system are met
Following condition：
(1)-10<f1<-2；
(2)-10<f2<-2；
(3)2<f3<10；
(4)2<f4<10；
(5)-10<f5<-2；
(6)5<f6<15；
(7)12<f45<30；
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 is the focal length of the 5th lens, and f6 is the focal length of the 6th lens, after f45 is the 4th lens and the 5th lens combination
Focal length.
3. high definition optical system in large aperture according to claim 1, it is characterised in that each lens of the optical system are met
Following condition：
(1)-2.0<f1/f<-1.2；
(2)-2.5<f2/f<-1.5；
(3)1.0<f3/f<2.0；
(4)0.8<f4/f<1.7；
(5)-2.2<f5/f<-1.2；
(6)2.0<f6/f<3.2；
(7)3.0<f45/f<5.0；
Wherein, f is the focal length of whole optical system, and f1 is the focal length of the first lens, and f2 is the focal length of the second lens, and f3 is the 3rd
The focal length of lens, f4 is the focal length of the 4th lens, and f5 is the focal length of the 5th lens, and f6 is the focal length of the 6th lens, and f45 is the 4th
Focal length after lens and the 5th lens combination.
4. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the first lens
Rate Nd1, material Abbe constant Vd1 are met：1.74<Nd1<1.90,37<Vd1<55.
5. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the second lens
Rate Nd2, material Abbe constant Vd2 are met：1.47<Nd2<1.62,50<Vd2<80.
6. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the 3rd lens
Rate Nd3, material Abbe constant Vd3 are met：1.75<Nd3<1.95,17<Vd3<40.
7. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the 4th lens
Rate Nd4, material Abbe constant Vd4 are met：1.55<Nd4<1.68,45<Vd4<70.
8. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the 5th lens
Rate Nd5, material Abbe constant Vd5 are met：1.75<Nd5<1.95,17<Vd5<35.
9. the large aperture high definition optical system according to Claims 2 or 3, it is characterised in that the material refraction of the 6th lens
Rate Nd6, material Abbe constant Vd6 are met：1.75<Nd6<1.95,35<Vd6<55.
10. a kind of camera lens, it is characterised in that the large aperture high definition optics described in claim any one of 1-9 is provided with camera lens
System.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621427861.9U CN206331173U (en) | 2016-12-24 | 2016-12-24 | Large aperture high definition optical system and its camera lens of application |
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| CN201621427861.9U CN206331173U (en) | 2016-12-24 | 2016-12-24 | Large aperture high definition optical system and its camera lens of application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443976A (en) * | 2016-12-24 | 2017-02-22 | 广东弘景光电科技股份有限公司 | Large aperture high definition optical system and lens for use thereof |
| CN110109233A (en) * | 2019-05-28 | 2019-08-09 | 广东弘景光电科技股份有限公司 | Large aperture optical system and its camera module of application |
-
2016
- 2016-12-24 CN CN201621427861.9U patent/CN206331173U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443976A (en) * | 2016-12-24 | 2017-02-22 | 广东弘景光电科技股份有限公司 | Large aperture high definition optical system and lens for use thereof |
| CN106443976B (en) * | 2016-12-24 | 2019-09-17 | 广东弘景光电科技股份有限公司 | Large aperture high definition optical system and its camera lens of application |
| CN110109233A (en) * | 2019-05-28 | 2019-08-09 | 广东弘景光电科技股份有限公司 | Large aperture optical system and its camera module of application |
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Granted publication date: 20170714 Effective date of abandoning: 20190917 |
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