CN209400778U - Large aperture takes the photograph the camera module of remote optical system and its application - Google Patents
Large aperture takes the photograph the camera module of remote optical system and its application Download PDFInfo
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- CN209400778U CN209400778U CN201920108894.4U CN201920108894U CN209400778U CN 209400778 U CN209400778 U CN 209400778U CN 201920108894 U CN201920108894 U CN 201920108894U CN 209400778 U CN209400778 U CN 209400778U
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Abstract
The utility model embodiment discloses a kind of large aperture and takes the photograph remote optical system, successively includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens from object plane to image planes along optical axis；The object plane side of first lens is convex surface, and focal power is positive；The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is positive；The object plane side of the third lens is concave surface, and image planes side is concave surface, and focal power is negative；The image planes side of 4th lens is convex surface, and focal power is positive；The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is positive；The object plane side of 6th lens is concave surface, and image planes side is concave surface, and focal power is negative.The utility model embodiment additionally provides a kind of camera module.The utility model embodiment is mainly made of 6 pieces of lens, and lens piece number is few, and structure is simple；Using the intercombination of different lens and reasonable distribution focal power, there are the optical properties such as large aperture, high pixel, low distortion and good athermal.
Description
Technical field:
The utility model relates to a kind of optical system and its camera modules of application, especially a kind of to be applied to on-vehicle lens
The large aperture in field takes the photograph the camera module of remote optical system and its application.
Background technique:
With automobile safety driving system application with it is universal, on-vehicle lens have also obtained commonly used.And before being applied to
Vehicle anti-collision warning, orbit displacement early warning, pedestrian identify that the demand of the application camera lens such as early warning is also more and more.Such camera lens requires energy
Adapt under daytime and low light environment can blur-free imaging, therefore camera lens needs to consider large aperture；Meanwhile in order to meet to long distance
Details identification from target, therefore camera lens need to have longer focal length.To meet above-mentioned requirements, overcome existing applied to vehicle-mounted neck
The generally existing eyeglass of optical system or camera module in domain is excessive, complicated defect, proposes that a kind of large aperture takes the photograph distance light
System.
Summary of the invention:
To overcome, the existing optical system applied to automotive field or the generally existing eyeglass of camera module are excessive, structure is complicated
The problem of, the utility model embodiment provides a kind of large aperture and takes the photograph remote optical system.
A kind of large aperture takes the photograph remote optical system, along optical axis successively include: from object plane to image planes the first lens, the second lens,
The third lens, the 4th lens, the 5th lens and the 6th lens；
The object plane side of first lens is convex surface, and focal power is positive；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens is concave surface, and image planes side is concave surface, and focal power is negative；
The image planes side of 4th lens is convex surface, and focal power is positive；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens is concave surface, and image planes side is concave surface, and focal power is negative.
On the other hand, the utility model embodiment additionally provides a kind of camera module.
A kind of camera module includes at least optical lens, is equipped with large aperture described above in optical lens and takes the photograph distance light
System.
The optical system and camera module of the utility model embodiment are mainly made of 6 pieces of lens, and lens piece number is few, knot
Structure is simple, and cost is relatively low；Using the intercombination of different lens and reasonable distribution focal power, there is large aperture, high pixel, low distortion
With the optical properties such as good athermal, it is suitable for on-vehicle lens field.
Detailed description of the invention:
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the optical system of the utility model or the structural schematic diagram one of camera module embodiment；
Fig. 2 is the distortion curve at the optical system of the utility model or+25 DEG C of camera module embodiment；
Fig. 3 is the MTF curve figure at the optical system of the utility model or+25 DEG C of camera module embodiment；
Fig. 4 is the relative illumination figure at the optical system of the utility model or+25 DEG C of camera module embodiment；
Fig. 5 is the MTF curve figure at the optical system of the utility model or -40 DEG C of camera module embodiment；
Fig. 6 is the MTF curve figure at the optical system of the utility model or+85 DEG C of camera module embodiment；
Fig. 7 is the optical system of the utility model or the structural schematic diagram two of camera module embodiment；
Fig. 8 is the optical system of the utility model or the structural schematic diagram three of camera module embodiment；
Fig. 9 is the optical system of the utility model or the structural schematic diagram four of camera module embodiment；
Figure 10 is the optical system of the utility model or the structural schematic diagram five of camera module embodiment.
Specific embodiment:
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
When the utility model embodiment refers to the ordinal numbers such as " first ", " second ", unless based on context its certain table
Up to the meaning of sequence, it should be understood that only play differentiation and be used.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model embodiment provides a kind of large aperture and takes the photograph remote optical system, successively wraps from object plane to image planes along optical axis
It includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.
The object plane side of first lens is convex surface, and focal power is positive；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens is concave surface, and image planes side is concave surface, and focal power is negative；
The image planes side of 4th lens is convex surface, and focal power is positive；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens is concave surface, and image planes side is concave surface, and focal power is negative.
The optical system of the utility model embodiment is mainly made of 6 pieces of lens, and lens piece number is few, and structure is simple, cost
It is lower；Using the intercombination of different lens and reasonable distribution focal power, there is large aperture, high pixel, low distortion and the heat that well disappears
The optical properties such as difference are suitable for on-vehicle lens field.
Further, non-limiting as a kind of preferred embodiment of the utility model, as shown in Figure 1,
The object plane side of first lens 1 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens 3 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 4th lens 4 is concave surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens 6 is concave surface, and image planes side is concave surface, and focal power is negative.
Further, non-limiting as another preferred embodiment of the utility model, as shown in fig. 7,
The object plane side of first lens 1 is convex surface, and image planes side is plane, and focal power is positive；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens 3 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 4th lens 4 is concave surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens 6 is concave surface, and image planes side is concave surface, and focal power is negative.
Still further, as another preferred embodiment of the utility model and it is non-limiting, as shown in figure 8,
The object plane side of first lens 1 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens 3 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 4th lens 4 is concave surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens 6 is concave surface, and image planes side is concave surface, and focal power is negative.
Still further, as another preferred embodiment of the utility model and it is non-limiting, as shown in figure 9,
The object plane side of first lens 1 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens 3 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 4th lens 4 is plane, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens 6 is concave surface, and image planes side is concave surface, and focal power is negative.
Further, non-limiting as another preferred embodiment of the utility model, as shown in Figure 10,
The object plane side of first lens 1 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is positive；
The object plane side of the third lens 3 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 4th lens 4 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 6th lens 6 is concave surface, and image planes side is concave surface, and focal power is negative.
Further, non-limiting, the 5th lens 5 and the mutual glue of the 6th lens 6 as the preferred embodiment of this programme
Conjunction forms compound lens, and meets TTL/EFL≤1.715, wherein TTL be optical system 1 object plane side vertex of the first lens extremely
The distance between imaging surface 8, EFL are the effective focal length of optical system.Structure is simple, compact, is combined with each other using different lens,
With optical properties such as large aperture, high pixel, low distortion and good athermals.
Still further, non-limiting as the preferred embodiment of this programme, the 5th lens 5 and the 6th lens 6 are mutually
The focal length f56 that gluing forms compound lens meets: 5 < f56 < 25；And meet between f56 and the focal length f of entire optical system: 0.5
<f56/f<2.5.It is combined with each other using different lens, has large aperture, high pixel, low distortion and good athermal etc. optical
Energy.
Further, non-limiting as the preferred embodiment of this programme, each lens of the optical system meet such as
Lower condition:
(1)5<f1<25；
(2)200<f2<2000；
(3)-10<f3<-2；
(4)5<f4<20；
(5)2<f5<10；
(6)-15<f6<-3；
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 third lens 3, and f4 is
The focal length of 4th lens 4, f5 are the focal length of the 5th lens 5, and f6 is the focal length of the 6th lens 6.It is combined with each other using different lens,
With optical properties such as large aperture, high pixel, low distortion and good athermals.
Still further, non-limiting as the preferred embodiment of this programme, each lens of the optical system meet such as
Lower condition:
(1)0.5<f1/f<2.5；
(2)30<f2/f<300；
(3)-1.5<f3/f<-0.2；
(4)0.5<f4/f<2.5；
(5)0.2<f5/f<2.5；
(6)-2.5<f6/f<-0.2；
Wherein, f is the focal length of entire 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 third 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 the coke of the 6th lens 6
Away from.It is combined with each other using different lens, there are the optical properties such as large aperture, high pixel, low distortion and good athermal.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd1 of the first lens 1,
Material Abbe constant Vd1 meets: 1.65 < Nd1 < 1.95,35 < Vd1 < 55.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd2 of the second lens 2,
Material Abbe number Vd2 meets: 1.75 < Nd2 < 2.10,20 < Vd2 < 45.Structure is simple, it is ensured that good optical property.
Still further, as the preferred embodiment of this programme and it is non-limiting, the Refractive Index of Material Nd3 of the third lens 3,
Material Abbe number Vd3 meets: 1.55 < Nd3 < 1.75,20 < Vd3 < 40.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd4 of the 4th lens 4,
Material Abbe number Vd4 meets: 1.45 < Nd4 < 1.75,40 < Vd4 < 80.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd5 of the 5th lens 5,
Material Abbe number Vd5 meets: 1.75 < Nd5 < 1.95,25 < Vd5 < 50.Structure is simple, it is ensured that good optical property.
Still further, as the preferred embodiment of this programme and it is non-limiting, the Refractive Index of Material Nd6 of the 6th lens 6,
Material Abbe number Vd6 meets: 1.55 < Nd6 < 1.75,20 < Vd6 < 45.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the diaphragm STO7 of optical system is located at the
Between two lens 2 and the third lens 3.Structure is simple, for adjusting the intensity of light beam.
Further, non-limiting, the 6th lens 6 and picture as a kind of preferred embodiment of the utility model
It is equipped with cutoff filter between face 8, is used to end infrared light by visible light, prevents red exposure.
Specifically, in the present embodiment, the focal length f1=15.29mm, the focal length f2=of the second lens 2 of the first lens 1
287.35mm, the focal length f3=-6.57mm of the third lens 3, the focal length f4=11.73mm of the 4th lens 4, the coke of the 5th lens 5
Away from f5=6.11mm, the focal length f6=-7.95 of the 6th lens 6.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；, STO correspond to 7 position of optical system aperture diaphragm；S6, S7 correspond to the third lens 3
Two surfaces；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 infrared between the 6th lens 6 and image planes 8
Two surfaces of edge filter；S15 corresponds to Sensor imaging surface 8.
As can be seen that the optical system in the present embodiment has extraordinary athermal performance in from Fig. 2 to Fig. 6.Using
It is optical that different lens combinations and reasonable distribution focal power realize large aperture, high pixel, low distortion and good athermal etc.
Energy.
A kind of camera module includes at least optical lens, is equipped with large aperture described above in optical lens and takes the photograph distance light
System.
The camera module of the utility model embodiment is mainly made of 6 pieces of lens, and lens piece number is few, and structure is simple, cost
It is lower；Using the intercombination of different lens and reasonable distribution focal power, there is large aperture, high pixel, low distortion and the heat that well disappears
The optical properties such as difference are suitable for on-vehicle lens field.
It is the one or more embodiments provided in conjunction with particular content as described above, does not assert the tool of the utility model
Body implementation is only limited to these instructions.It is all approximate with the method for the utility model, structure etc., identical or practical new for this
Several technology deduction or replace are made under type concept thereof, all should be considered as the protection scope of the utility model.
Claims (10)
- It successively include: the first lens, the second lens, from object plane to image planes along optical axis 1. a kind of large aperture takes the photograph remote optical system Three lens, the 4th lens, the 5th lens and the 6th lens；It is characterized in that,The object plane side of first lens is convex surface, and focal power is positive；The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is positive；The object plane side of the third lens is concave surface, and image planes side is concave surface, and focal power is negative；The image planes side of 4th lens is convex surface, and focal power is positive；The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is positive；The object plane side of 6th lens is concave surface, and image planes side is concave surface, and focal power is negative.
- 2. large aperture according to claim 1 takes the photograph remote optical system, which is characterized in that the 5th lens and the 6th lens are mutual Gluing forms compound lens, and meets TTL/EFL≤1.715, wherein TTL be the first lens object plane side vertex of optical system extremely The distance between imaging surface, EFL are the effective focal length of optical system.
- 3. large aperture according to claim 2 takes the photograph remote optical system, which is characterized in that the 5th lens and the 6th lens are mutual The focal length f56 that gluing forms compound lens meets: 5 < f56 < 25；And meet between f56 and the focal length f of entire optical system: 0.5 <f56/f<2.5。
- 4. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the optical system it is each Mirror meets following condition:(1)5<f1<25；(2)200<f2<2000；(3)-10<f3<-2；(4)5<f4<20；(5)2<f5<10；(6)-15<f6<-3；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 third 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.
- 5. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the optical system it is each Mirror meets following condition:(1)0.5<f1/f<2.5；(2)30<f2/f<300；(3)-1.5<f3/f<-0.2；(4)0.5<f4/f<2.5；(5)0.2<f5/f<2.5；(6)-2.5<f6/f<-0.2；Wherein, f is the focal length of entire 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 third The focal length of lens, f4 are 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.
- 6. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the material of the first lens is rolled over Penetrate rate Nd1, material Abbe constant Vd1 satisfaction: 1.65 < Nd1 < 1.95,35 < Vd1 < 55.
- 7. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the material of the second lens is rolled over Penetrate rate Nd2, material Abbe number Vd2 satisfaction: 1.75 < Nd2 < 2.10,20 < Vd2 < 45.
- 8. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the material of the third lens is rolled over Penetrate rate Nd3, material Abbe number Vd3 satisfaction: 1.55 < Nd3 < 1.75,20 < Vd3 < 40.
- 9. large aperture according to claim 1,2 or 3 takes the photograph remote optical system, which is characterized in that the material of the 4th lens is rolled over Penetrate rate Nd4, material Abbe number Vd4 satisfaction: 1.45 < Nd4 < 1.75,40 < Vd4 < 80.
- 10. a kind of camera module includes at least optical lens, which is characterized in that be equipped with claim 1-9 in optical lens and appoint Large aperture described in one takes the photograph remote optical system.
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| CN109683285A (en) * | 2019-01-23 | 2019-04-26 | 广东弘景光电科技股份有限公司 | Large aperture takes the photograph the camera module of remote optical system and its application |
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| CN109683285A (en) * | 2019-01-23 | 2019-04-26 | 广东弘景光电科技股份有限公司 | Large aperture takes the photograph the camera module of remote optical system and its application |
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