CN208239709U - The big target surface Depth Imaging optical system of co carbonization and its camera module of application - Google Patents
The big target surface Depth Imaging optical system of co carbonization and its camera module of application Download PDFInfo
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- CN208239709U CN208239709U CN201820673929.4U CN201820673929U CN208239709U CN 208239709 U CN208239709 U CN 208239709U CN 201820673929 U CN201820673929 U CN 201820673929U CN 208239709 U CN208239709 U CN 208239709U
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- carbonization
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Abstract
The utility model embodiment discloses a kind of big target surface Depth Imaging optical system of co carbonization, 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 and the second lens is convex surface, and image planes side is concave surface, and focal power is negative；The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is positive；The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；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 convex surface, and image planes side is convex surface, and focal power is positive；Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.On the other hand, the utility model embodiment additionally provides a kind of camera module.The optical system and camera module of the utility model embodiment are mainly made of 6 pieces of lens, and structure is simple.
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 industry and 3D
Magazine optical system and camera module.
Background technique:
It is existing to adapt to for industry and the magazine optical system of 3D or camera module, it is generally existing complicated to ask
Topic.
Summary of the invention:
To overcome, tradition is applied to industry and the magazine optical system of 3D or camera module is generally existing complicated
Problem, the utility model embodiment provide a kind of big target surface Depth Imaging optical system of co carbonization.
A kind of big target surface Depth Imaging optical system of co carbonization, along optical axis successively include: from object plane to image planes the first lens,
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 image planes side is concave surface, and focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；
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 convex surface, and image planes side is convex surface, and focal power is positive；
Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.
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 the big target surface of co carbonization described above in optical lens
Depth Imaging optical system.
The optical system and camera module of the utility model embodiment are mainly made of 6 pieces of lens, and structure is simple；Using
Different lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc.
Favorable optical performance, suitable for industry and 3D Depth Imaging camera.
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 of camera lens；
Fig. 2 is the optical system of the utility model or the field curvature, distortion curve figure of camera lens；
Fig. 3 is MTF curve figure under the optical system of the utility model or the visible light of camera lens；
Fig. 4 is MTF curve figure under the optical system of the utility model or the 850nm of camera lens.
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.
As shown in Figure 1, the utility model embodiment provides a kind of big target surface Depth Imaging optical system of co carbonization, along light
Axis from object plane to image planes 8 successively include: the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, with
And the 6th lens 6.
The object plane side of first lens 1 is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens 3 is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 4th lens 4 is concave surface, and image planes side is concave surface, and focal power is negative；
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 convex surface, and image planes side is convex surface, and focal power is positive；
Wherein, the 4th lens 4 and the mutually glued formation compound lens of the 5th lens 5.
The optical system and camera module of the utility model embodiment are mainly made of 6 pieces of lens, and structure is simple；Using
Different lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc.
Favorable optical performance, suitable for industry and 3D Depth Imaging camera.
Further, non-limiting as the preferred embodiment of this programme, the focal length f45 and entire optics of compound lens
The focal length f of system meets: 0 < f/f45 < 0.13.Using the intercombination of different lens and reasonable distribution focal power, have day and night altogether
The favorable optical performances such as burnt, big target surface, large aperture, wide-angle Depth Imaging.
Still further, as the specific embodiment of this programme and it is non-limiting, optical system meets following condition:
(1)-0.31<f/f1<-0.25；
(2)-0.40<f/f2<-0.34；
(3)0.43<f/f3<0.51；
(4)0<f/f45<0.13；
(5)0.29<f/f6<0.36；
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, f45
For the focal length of the focal length of compound lens, f6 is the focal length of the 6th lens 6, and f is the focal length of entire optical system.Using different lens
Intercombination and reasonable distribution focal power have the good opticals such as day and night confocal, big target surface, large aperture, wide-angle Depth Imaging
Performance.
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: Nd1 > 1.80, Vd1 < 50.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 constant Vd2 meets: Nd2 < 1.56, Vd2 > 55.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 constant Vd3 meets: Nd3 > 1.90, Vd3 < 36.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 constant Vd4 meets: Nd4 > 1.92, Vd4 < 20.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 constant Vd5 meets: Nd5 > 1.80, 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 constant Vd6 meets: Nd6 < 1.56, Vd6 > 55.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the specific embodiment of this programme, aperture diaphragm 7 be located at the third lens 3 with
Between 4th lens 4, close to 3 side of the third lens.Structure is simple, for adjusting the intensity of light beam.
Further, non-limiting as the specific embodiment of this programme, the second lens 2 and the 6th lens 6 are
Plastic aspheric lenes.Mixing is moulded using glass to constitute, and optimizes lens performance while cost is reduced.
Specifically, in the present embodiment, this optical system matches 1/2.3 inch of 3D sensor, focal length f=3.33mm,
F/NO=1.3, DFOV=130 °, TTL=25.8mm.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 third lens 3；STO is diaphragm；S8, S9 correspond to the 4th
Two surfaces of lens 4；S9, S10 correspond to two surfaces of the 5th lens 5；S11, S12 correspond to two of the 6th lens 6
Surface；S13 is the object plane side surface of the bandpass filter between the 6th lens 6 and image planes 8.
More specifically, the surface of second lens 2 and the 6th lens 6 is aspherical shape, meet following equation
Formula:
Wherein,
Parameter c=1/R, as curvature corresponding to radius, y are radial coordinate, and unit is identical with length of lens unit, and k is circular cone
Whose conic coefficient, a1To a8Coefficient corresponding to respectively each radial coordinate.The surface S3 and the surface S4 of second lens 2,
And the 6th lens 6 the surface S11 and the surface S12 aspherical correlation values it is as shown in the table:
| K | α1 | α2 | α3 | α4 | α5 | α6 | |
| S3 | -77.7531 | 0 | 0.001293 | -2.154E-03 | 8.645E-05 | -1.737E-06 | 1.151E-08 |
| S4 | -0.5600 | 0 | 0.001480 | -1.044E-03 | -1.053E-04 | 8.593E-08 | -1.995E-07 |
| S11 | -1.5828 | 0 | -4.239E-04 | 2.588E-04 | -8.739E-06 | 3.325E-07 | -7.721E-09 |
| S12 | 1.06770 | 0 | 0.001083 | -1.243E-04 | 2.198E-05 | -7.683E-07 | 4.931E-09 |
In from Fig. 2 to Fig. 4 as can be seen that the present embodiment in optical system have day and night confocal, big target surface, large aperture,
The favorable optical performances such as wide-angle Depth Imaging.
A kind of camera module includes at least optical lens, is equipped with the big target surface of co carbonization described above in optical lens
Depth Imaging optical system.
The optical system and camera module of the utility model embodiment are mainly made of 6 pieces of lens, and structure is simple；Using
Different lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc.
Favorable optical performance, suitable for industry and 3D Depth Imaging camera.
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)
1. a kind of big target surface Depth Imaging optical system of co carbonization successively includes: the first lens, from object plane to image planes along optical axis
Two lens, the third 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 image planes side is concave surface, and focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；
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 convex surface, and image planes side is convex surface, and focal power is positive；
Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.
2. the big target surface Depth Imaging optical system of co carbonization as described in claim 1, which is characterized in that the focal length of compound lens
F45 and the focal length f of entire optical system meet: 0 < f/f45 < 0.13.
3. the big target surface Depth Imaging optical system of co carbonization as described in claim 1, which is characterized in that optical system meets such as
Lower condition:
(1)-0.31<f/f1<-0.25；
(2)-0.40<f/f2<-0.34；
(3)0.43<f/f3<0.51；
(4)0<f/f45<0.13；
(5)0.29<f/f6<0.36；
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 f45 is that combination is saturating
The focal length of the focal length of mirror, f6 are the focal length of the 6th lens, and f is the focal length of entire optical system.
4. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the first lens
Refractive Index of Material Nd1, material Abbe constant Vd1 meet: Nd1 > 1.80, Vd1 < 50.
5. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the second lens
Refractive Index of Material Nd2, material Abbe constant Vd2 meet: Nd2 < 1.56, Vd2 > 55.
6. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the third lens
Refractive Index of Material Nd3, material Abbe constant Vd3 meet: Nd3 > 1.90, Vd3 < 36.
7. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the 4th lens
Refractive Index of Material Nd4, material Abbe constant Vd4 meet: Nd4 > 1.92, Vd4 < 20.
8. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1 or 2, which is characterized in that the 5th lens
Refractive Index of Material Nd5, material Abbe constant Vd5 meet: Nd5 > 1.80, Vd5 < 50.
9. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1 or 2, which is characterized in that the 6th lens
Refractive Index of Material Nd6, material Abbe constant Vd6 meet: Nd6 < 1.56, Vd6 > 55.
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
The big target surface Depth Imaging optical system of co carbonization described in one.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975960A (en) * | 2019-04-25 | 2019-07-05 | 协益电子（苏州）有限公司 | One kind looking around wide-angle without thermalization camera lens and automobile panoramic round-looking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975960A (en) * | 2019-04-25 | 2019-07-05 | 协益电子（苏州）有限公司 | One kind looking around wide-angle without thermalization camera lens and automobile panoramic round-looking system |
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