CN208239710U - Day and night confocal flake monitoring optical system and its camera module of application - Google Patents
Day and night confocal flake monitoring optical system and its camera module of application Download PDFInfo
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- CN208239710U CN208239710U CN201820648126.3U CN201820648126U CN208239710U CN 208239710 U CN208239710 U CN 208239710U CN 201820648126 U CN201820648126 U CN 201820648126U CN 208239710 U CN208239710 U CN 208239710U
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Abstract
The utility model discloses a kind of day and night confocal flakes to monitor optical system, successively includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, 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 concave surface or 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 concave surface or plane, and focal power is positive；The object plane side of 4th lens is convex surface, and image planes side is convex surface, and focal power is positive；The object plane side of 5th lens is concave surface, and image planes side is convex surface, and focal power is negative；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.The utility model additionally provides a kind of camera module.The optical system and camera module of the utility model are mainly made of 6 pieces of lens, and structure is simple, small in size, light-weight.
Description
Technical field:
The utility model relates to a kind of optical system and its camera module of application, especially a kind of flake monitors optical system
System and its camera module of application.
Background technique:
High-resolution high definition fish eye lens is widely used in safety monitoring, the vehicle-mounted equipment such as look around.Traditional high definition fish
There is the problems such as structure is complicated, volume is big, weight is heavy, price is high and temperature characterisitic is bad in glasses head.
Summary of the invention:
For overcome the problems, such as traditional fish eye lens it is generally existing structure is complicated, bulky, the utility model embodiment provide
A kind of day and night confocal flake monitors optical system.
A kind of day and night confocal flake monitoring optical system, successively includes: the first lens, second from object plane to image planes along optical axis
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 concave surface or 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 concave surface or plane, and focal power is positive；
The object plane side of 4th lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens is concave surface, and image planes side is convex surface, and focal power is negative；
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 day and night confocal flake described above in optical lens
Monitor 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, volume
It is small, it is light-weight, it is at low cost；Using the intercombination of different lens and reasonable distribution focal power, there is parsing power height, relative illumination
Good, temperature characterisitic is outstanding and day and night completely confocal etc. favorable optical performances.
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 MTF curve figure of camera lens；
Fig. 3 is the optical system of the utility model or the relative illumination figure 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 day and night confocal flake monitoring optical system, along optical 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, Yi Ji
Six 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 concave surface or 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 concave surface or plane, and focal power is positive；
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 concave surface, and image planes side is convex surface, and focal power is negative；
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, volume
It is small, it is light-weight, it is at low cost；Using the intercombination of different lens and reasonable distribution focal power, there is parsing power height, relative illumination
Good, temperature characterisitic outstanding (- 40 DEG C -+85 DEG C, BFL:shift ± 0.005mm) and day and night completely confocal etc. favorable optical performances.
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: 2.12 < ∣ f45/f ∣ < 5.12.Structure is simple, using the intercombination of different lens and reasonable distribution light
Focal power has that parsing power is high, relative illumination is good, temperature characterisitic is outstanding and day and night completely confocal etc. favorable optical performances.
Still further, the focal length f1 and entire light of first lens 1 non-limiting as the specific embodiment of this programme
The focal length f of system meets: 5.5 < ∣ f1/f ∣ < 8.5；Its Refractive Index of Material Nd1, material Abbe constant Vd1 meet: 1.75 <
Nd1,20<Vd1<50.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the specific embodiment of this programme, the focal length f2 and third of the second lens 2 are saturating
The focal length f3 of mirror 3 meets: 1.2 < ∣ f3/f2 ∣ < 2.4.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the specific embodiment of this programme, the focal length f3 of the third lens 3 with combine
The focal length f45 of mirror meets: 0.8 < ∣ f3/f45 ∣ < 1.4；Its material Abbe constant Vd3 meets: Vd3 < 40.Structure is simple, can be with
Guarantee good optical property.
Still further, non-limiting as the specific embodiment of this programme, the focal length f6 and second of the 6th lens 6 is saturating
The focal length f2 of mirror 2 meets: 0.01 < ∣ f2/f6 ∣ < 0.25.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the specific embodiment of this programme, the optics overall length TTL of optical system is full
Foot: 15mm < TTL < 20mm.Structure is simple, it is ensured that good optical property.
Further, non-limiting as the specific embodiment of this programme, it is saturating that the diaphragm 7 of optical system is located at third
Between mirror 3 and the 4th lens 4, close to 4 object plane side of the 4th lens.Structure is simple, for adjusting the intensity of light beam.
Still further, non-limiting as the specific embodiment of this programme, the first lens 1 and the third lens 3 are glass
Glass lens, the second lens 2, the 4th lens 4, the 5th lens 5 and the 6th lens 6 are plastic aspheric lenes.It is moulded and is mixed using glass
It constitutes, optimizes lens performance while cost is reduced.
Specifically, in the present embodiment, the focal length f of this optical system be 1.08mm, F/NO=2.0, HFOV=192 °,
TTL=17.0mm.Every basic parameter of this optical system is as shown in the table:
| Surface | Radius of curvature R (mm) | Interval D (mm) | Refractive index Nd | Dispersion values Vd |
| S1 | 12.91 | 0.98 | 1.83 | 42.74 |
| S2 | 4.29 | 3.77 | ||
| S3 | -10.28 | 1.20 | 1.54 | 55.78 |
| S4 | 1.22 | 1.44 | ||
| S5 | 3.2 | 3.29 | 1.92 | 18.90 |
| S6 | 38.65 | 0.35 | ||
| STO | INFINITY | 0.05 | ||
| S8 | 3.38 | 1.28 | 1.54 | 55.78 |
| S9 | -0.94 | 1.15 | 1.64 | 23.26 |
| S10 | -2.80 | 0.44 | ||
| S11 | 7.52 | 0.45 | 1.54 | 55.78 |
| S12 | -12.57 | 0.20 | ||
| S13 | INFINITY | 0.70 | 1.52 | 64.21 |
| S14 | INFINITY | 1.70 | ||
| IMA | INFINITY | 0.00 |
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, S14 correspond to two surfaces of the bandpass filter between the 6th lens 6 and image planes 8；IMA is image planes 8.
More specifically, second lens 2, the 4th lens 4, the 5th lens 5 and the 6th lens 6 surface be aspherical shape
Shape meets following equation:
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 a5Coefficient corresponding to respectively each radial coordinate.The surface S3 of second lens 2 and S4
The S11 of surface, the surface S8 of the 4th lens 4 and the surface S9, the surface S9 of the 5th lens 5 and the surface S10 and the 6th lens 6
The aspherical correlation values on surface and the surface S12 are as shown in the table:
As can be seen that the optical system in the present embodiment has, parsing power is high, relative illumination is good, temperature in from Fig. 2 to Fig. 3
Characteristic outstanding (- 40 DEG C -+85 DEG C, BFL:shift ± 0.005mm) and day and night completely confocal etc. favorable optical performances.
A kind of camera module includes at least optical lens, is equipped with day and night confocal flake described above in optical lens
Monitor 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, volume
It is small, it is light-weight, it is at low cost；Using the intercombination of different lens and reasonable distribution focal power, there is parsing power height, relative illumination
Good, temperature characterisitic outstanding (- 40 DEG C -+85 DEG C, BFL:shift ± 0.005mm) and day and night completely confocal etc. favorable optical performances.
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 day and night confocal flake monitors optical system, along optical axis successively include: from object plane to image planes the first lens, second thoroughly
Mirror, 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 concave surface or 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 concave surface or plane, and focal power is positive；
The object plane side of 4th lens is convex surface, and image planes side is convex surface, and focal power is positive；
The object plane side of 5th lens is concave surface, and image planes side is convex surface, and focal power is negative；
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. day and night confocal flake monitors optical system as described in claim 1, which is characterized in that the focal length f45 of compound lens
Meet with the focal length f of entire optical system: 2.12 < ∣ f45/f ∣ < 5.12.
3. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the focal length of the first lens
F1 and the focal length f of entire optical system meet: 5.5 < ∣ f1/f ∣ < 8.5；Its Refractive Index of Material Nd1, material Abbe constant Vd1
Meet: 1.75 < Nd1,20 < Vd1 < 50.
4. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the focal length of the second lens
The f2 and focal length f3 of the third lens meets: 1.2 < ∣ f3/f2 ∣ < 2.4.
5. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the focal length of the third lens
The focal length f45 of f3 and compound lens meets: 0.8 < ∣ f3/f45 ∣ < 1.4；Its material Abbe constant Vd3 meets: Vd3 < 40.
6. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the focal length of the 6th lens
The focal length f2 of f6 and the second lens meets: 0.01 < ∣ f2/f6 ∣ < 0.25.
7. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the optics of optical system
Overall length TTL meets: 15mm < TTL < 20mm.
8. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the diaphragm of optical system
Between the third lens and the 4th lens, close to the 4th lens object plane side.
9. day and night confocal flake monitors optical system as claimed in claim 1 or 2, which is characterized in that the first lens and third
Lens are glass lens, and the second lens, the 4th lens, the 5th lens and the 6th lens are plastic aspheric lenes.
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
Day and night confocal flake monitors optical system described in one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820648126.3U CN208239710U (en) | 2018-05-02 | 2018-05-02 | Day and night confocal flake monitoring optical system and its camera module of application |
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| CN201820648126.3U CN208239710U (en) | 2018-05-02 | 2018-05-02 | Day and night confocal flake monitoring optical system and its camera module of application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258027A (en) * | 2020-01-29 | 2020-06-09 | 福建福光股份有限公司 | Low distortion glass is moulded and is mixed compact high definition fisheye lens |
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2018
- 2018-05-02 CN CN201820648126.3U patent/CN208239710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258027A (en) * | 2020-01-29 | 2020-06-09 | 福建福光股份有限公司 | Low distortion glass is moulded and is mixed compact high definition fisheye lens |
| CN111258027B (en) * | 2020-01-29 | 2022-08-16 | 福建福光股份有限公司 | Mixed compact high definition fisheye lens is moulded to low distortion glass |
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