CN209028284U - A kind of million bugeye lenses - Google Patents
A kind of million bugeye lenses Download PDFInfo
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- CN209028284U CN209028284U CN201821476041.8U CN201821476041U CN209028284U CN 209028284 U CN209028284 U CN 209028284U CN 201821476041 U CN201821476041 U CN 201821476041U CN 209028284 U CN209028284 U CN 209028284U
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Abstract
A kind of million bugeye lenses, including the first lens element, the second lens element, the third lens element, the 4th lens element, the 5th lens element, the 6th lens element being sequentially coaxially arranged from object side to image side, the first lens element, the second lens element are with negative power and to be convex to the falcate eyeglass of object space；The third lens element, the 4th lens element, the 5th lens element are the lenticular eyeglass with positive light coke；6th lens element is with negative power and to be convex to the concave-convex eyeglass of image space；Wherein the 5th lens element and the 6th lens element form cemented doublet；First lens element, the second lens element, the third lens element, the 4th lens element, the 5th lens element and the 6th lens element are a kind of glass spherical mirror million bugeye lens provided by the utility model, optical design is carried out using the structure of six sheet glass eyeglasses, in order to meet the resolving power of camera lens, be convenient for machining eyeglass, high definition mega pixel class is made up to.
Description
Technical field
The utility model relates to optical field, especially a kind of million bugeye lenses.
Background technique
Wide-angle lens is nowadays widely used in vehicle-mounted camera-shooting and recording device, in safety monitoring equipment, and especially automobile is as a kind of
The vehicles for quality of making the life better more and more come into usually other life in recent years, with the high speed of digital vedio recording
Development, on-vehicle lens have become one of essential element on automobile, are widely used in reverse image and driving recording
In instrument, improves safe driving and reduction accident plays deciding factor, although existing wide-angle high definition camera lens can expire
The primary demand that vehicle mounted surveillance uses is realized in the basic flood head-up rink corner of foot, but it still has many defects, if you need to use
Aspherical lens lead to complex process and production cost is higher, image quality is bad and does not have the function such as waterproof, antidetonation, high temperature resistant
Energy.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of million bugeye lenses, image quality is good, distorts
It is small and have both waterproof, antidetonation, high temperature resistant function.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of million bugeye lenses, including the first lens element, second thoroughly being sequentially coaxially arranged from object side to image side
Mirror element, the third lens element, the 4th lens element, the 5th lens element, the 6th lens element；
First lens element is the meniscus lens with negative power, and object side is the first convex surface, image side surface
For the first concave surface, the first convex surface and the first concave surface are spherical surface；The radius of curvature on first convex surface is 7.2mm < R <
9.6mm, the radius of curvature of the first concave surface are 1.5mm < R < 3.5mm；
Second lens element is the meniscus lens with negative power, and object side is the second convex surface, image side surface
For the second concave surface, the second convex surface and the second concave surface are spherical surface；The radius of curvature on second convex surface is 18.7mm < R <
20.7mm, the radius of curvature of the second concave surface are 1.6mm < R < 3.2mm；
The third lens element is the lenticular lens with positive light coke, and object side is third convex surface, image side
Face is the 4th convex surface, and third convex surface and the 4th convex surface are spherical surface；The radius of curvature on the third convex surface is 10.0mm < R <
11.5mm, the radius of curvature on the 4th convex surface are 5.5mm < R < 6.8mm；
4th lens element is the lenticular lens with positive light coke, and object side is the 5th convex surface, image side
Face is the 6th convex surface, and the 5th convex surface and the 6th convex surface are spherical surface；The radius of curvature on the 5th convex surface is 121.5mm < R <
123.8mm, the radius of curvature on the 6th convex surface are 2.5mm < R < 4.2mm；
5th lens element is the lenticular lens with positive light coke, and object side is the 7th convex surface, image side
Face is the 8th convex surface, and the 7th convex surface and the 8th convex surface are spherical surface；The radius of curvature on the 7th convex surface is 3.5mm < R <
5.2mm, the radius of curvature on the 8th convex surface are 1.6mm < R < 3.2mm；
6th lens element is the meniscus lens with negative power, and object side is third concave surface, image side surface
For the 9th convex surface, third concave surface, the 9th convex surface are spherical surface；The radius of curvature of the third concave surface is 1.6mm < R < 3.2mm,
The radius of curvature on the 9th convex surface is 6.9mm < R < 8.5mm；
5th lens element, the 6th lens element form cemented doublet.
First lens element, the second lens element, the third lens element, the 4th lens element, the 5th lens element, the 6th
Lens element is made of glass material.
First lens element is handled through tempering, and surface is equipped with waterproof membrane.
The image side of 6th lens element is provided with optical filter.
The object side of 4th lens element is provided with diaphragm, and diaphragm is located at the 4th convex surface and the 4th of the third lens element
Between 5th convex surface of lens.
First lens element meets: 1.67≤Nd1≤1.87；49.1≤Vd1≤50.1；
Second lens element meets: 1.67≤Nd2≤1.87；49.1≤Vd2≤50.1；
The third lens element meets: 1.74≤Nd3≤1.94；23.1≤Vd3≤24.1；
4th lens element meets: 1.62≤Nd4≤1.82；54.1≤Vd4≤55.1；
5th lens element meets: 1.62≤Nd5≤1.82；54.1≤Vd5≤55.1；
6th lens element meets: 1.82≤Nd6≤2.02；18.1≤Vd6≤19.1；
Wherein, Nd1 、Nd2 、Nd3、 Nd4 、Nd5 、Nd6Respectively indicate the first lens element, the second lens element, third
Lens element, the 4th lens element, the 5th lens element, the 6th lens element are the refractive index of the light of 587.4nm to wavelength,
Vd1 、Vd2 、Vd3 、Vd4 、Vd5 、Vd6First lens element, the second lens element, the third lens element, the 4th lens cells
Part, the 5th lens element, the 6th lens element are the Abbe number of the light of 587.4nm to wavelength.
Million bugeye lens meets: the optics overall length mm of TTL≤12.5, and horizontal, vertical, diagonal field of view angle FOV >=
200°。
Million bugeye lens meets: image height >=3.55mm, F-number F/NO≤2.0.
The utility model million bugeye lenses of one kind, carry out optical design by the structure to six-element lens element, with
Convenient for meeting the resolving power of camera lens, being convenient for machining eyeglass, high definition mega pixel class is made up to, and meet focal length EFL <
1.12, optical distortion F-THETA≤10.4%, to realize the big wide-angle lens of high definition.Additionally by the first lens element front surface
Waterproof membrane is plated, camera lens is enable to realize normal imaging in severe rain and fog weather；This camera lens high, physical and chemical performance using production frequency
Stablize, the common glass material that cost performance is high, realization can work normally within the temperature range of -40 DEG C ~+85 DEG C, this camera lens
Structure tolerance it is loose, machining eyeglass is stablized, and production yield with higher, this camera lens carried out Analysis for Stray Light control, had
Effect avoids obvious ghost.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the concrete structure schematic diagram of the utility model.
Fig. 2 is the MTF resolution curve figure of the utility model.
Fig. 3 is the curvature of field and distortion figure of the utility model.
Fig. 4 is the lattice array figure of the utility model.
Fig. 5 is the lattice array figure of the utility model.
Fig. 6 is the chromaticity difference diagram of the utility model.
Fig. 7 is the relative luminance figure of the utility model.
Fig. 8 is the index path of the utility model.
In figure: the first lens element 1, the second lens element 2, the third lens element 3, the 4th lens element 4, the 5th lens
Element 5, the 6th lens element 6, optical filter 7, diaphragm 8, image planes 9.
Specific embodiment
A kind of million bugeye lenses refer mainly to a kind of wide-angle lens that pixel is 1,300,000, the wide-angle lens structure here
As shown in Figure 1, the first lens element 1, the second lens element are sequentially coaxially arranged with from object space to image space image planes 9 in the direction of the arrow
2, the third lens element 3, diaphragm 8, the 4th lens element 4, the 5th lens element 5, the 6th lens element 6 and optical filter 7.Institute
State the first lens element 1, the second lens element 2, the third lens element 3, the 4th lens element 4, the 5th lens element the 5, the 6th
Lens element 6 is glass spherical mirror, due to having used the spherical mirror of full glass material so that wide-angle lens heat resistance and
Stability is very secure.
In addition, the first lens element 1 is handled through tempering, outer surface is equipped with waterproof membrane.
Specifically, the first lens element 1 is the meniscus lens with negative power, and object side is the first convex surface, as
Side is the first concave surface, and the first convex surface and the first concave surface are spherical surface.The range of curvature radius on first convex surface is 7.2mm
< R < 9.6mm, the range of curvature radius of the first concave surface are 1.5mm < R < 3.5mm.Preferably, the radius of curvature on the first convex surface
For 8.6mm, the radius of curvature of the first concave surface is 1.9mm.
Second lens element 2 is the meniscus lens with negative power, and object side is the second convex surface, and image side surface is
Second concave surface, the second convex surface and the second concave surface are spherical surface.The range of curvature radius on second convex surface is 18.7mm < R <
20.7mm, the range of curvature radius of the second concave surface are 1.6mm < R < 3.2mm.Preferably, the radius of curvature on the second convex surface is
19.5mm, the radius of curvature of the second concave surface are 1.8mm.
The third lens element 3 is the lenticular lens with positive light coke, and object side is third convex surface, and image side surface is
4th convex surface, third convex surface and the 4th convex surface are spherical surface.The range of curvature radius on the third convex surface is 10.0mm < R <
11.5mm, the range of curvature radius on the 4th convex surface are 5.5mm < R < 6.8mm.Preferably, the radius of curvature on third convex surface is
10.4mm, the radius of curvature on the 4th convex surface are 6.1mm.
4th lens element 4 is the lenticular lens with positive light coke, and object side is the 5th convex surface, and image side surface is
6th convex surface, the 5th convex surface and the 6th convex surface are spherical surface.The range of curvature radius on the 5th convex surface is 121.5mm < R <
123.8mm, the range of curvature radius on the 6th convex surface are 2.5mm < R < 4.2mm.Preferably, the radius of curvature on the 5th convex surface
For 122.46mm, the radius of curvature on the 6th convex surface is 3.41mm.
5th lens element 5 is the lenticular lens with positive light coke, and object side is the 7th convex surface, and image side surface is
8th convex surface, the 7th convex surface and the 8th convex surface are spherical surface.The range of curvature radius on the 7th convex surface is 3.5mm < R <
5.2mm, the range of curvature radius on the 8th convex surface are 1.6mm < R < 3.2mm.Preferably, the radius of curvature on the 7th convex surface is
4.67mm, the radius of curvature on the 8th convex surface are 1.98mm.
6th lens element 6 is the meniscus lens with negative power, and object side is third concave surface, image side surface the
Nine convex surfaces, third concave surface, the 9th convex surface are spherical surface.The range of curvature radius of the third concave surface is 1.6mm < R < 3.2mm,
The range of curvature radius on the 9th convex surface is 6.9mm < R < 8.5mm.Preferably, the radius of curvature of the third concave surface is
1.98mm, the radius of curvature on the 9th convex surface are 7.83mm.
Optical filter 7 includes the first platen surface and the second platen surface being oppositely arranged.
5th lens element 5, the 6th lens element 6 are glued, form cemented doublet.
In the present embodiment, the first lens element 1 meets: 1.67≤Nd1≤1.87；49.1≤Vd1≤50.1；Preferably,
Nd1=1.7, Vd1= 49.6。
Second lens element 2 meets: 1.67≤Nd2≤1.87；49.1≤Vd2≤50.1；Preferably, Nd2=1.77,
Vd2=49.6。
The third lens element 3 meets: 1.74≤Nd3≤1.94；23.1≤Vd3≤24.1；Preferably, Nd3=1.72, Vd3
= 54.6 。
4th lens element 4 meets: 1.62≤Nd4≤1.82；54.1≤Vd4≤55.1；Preferably, Nd4=1.72,
Vd4=54.6。
5th lens element 5 meets: 1.62≤Nd5≤1.82；54.1≤Vd5≤55.1；Preferably, Nd5=1.84, Vd5
= 23.7 。
6th lens element 6 meets: 1.82≤Nd6≤2.02；18.1≤Vd6≤19.1；Preferably, Nd6=1.92, Vd6
= 18.8 。
Wherein, Nd1 、Nd2 、Nd3、 Nd4 、Nd5 、Nd6Respectively indicate the first lens element 1, the second lens element 2,
Three lens elements 3, the 4th lens element 4, the 5th lens element 5, the 6th lens element 6 are to the light that wavelength is 587.4nm
Refractive index, Vd1 、Vd2 、Vd3 、Vd4 、Vd5 、Vd6First lens element 1, the second lens element 2, the third lens element 3,
Four lens elements 4, the 5th lens element 5, the 6th lens element 6 are the Abbe number of the light of 587.4nm to wavelength.
According to the on-vehicle lens of above structure and parameter designing, field angle can reach 200 °, optics overall length TTL <
12.5mm, image height > 3.5mm reach the resolution ratio of 2,000,000 pixels, while optics is total so as to well adapt to 1/3 ＂ chip
Length is very short, and the confined space being not take up on vehicle is highly suitable for vehicle-mounted.
(MTF resolution curve figure) as shown in Figure 2, by curve it is found that the meridian of each visual field and the MTF curve of the sagitta of arc compare
It is close, show the relatively good in the imaging consistency of meridian (T) and the sagitta of arc (S) both direction of the wide-angle lens, and regard entirely
The MTF contrast of field reaches 0.3, and the image contrast of the wide-angle lens is preferable.
(curvature of field and distortion figure) as shown in Figure 3, it is abnormal by curve it is found that the curvature of field absolute value of the wide-angle lens is in 0.05mm
Varied curve is more smooth, and the compression of images of edge wide-angle region is more gentle, effectively increases the clarity of unfolded image.
(lattice array figure) as shown in Figure 4, according to sequence from left to right, from top to bottom be successively 0 visual field, 0.3 visual field,
The camera lens dot chart of 0.5 visual field, 0.7 visual field, 1.0 visual fields, as seen from the figure, the RMS RADIUS value of camera lens and chip are very
Match.
(relative luminance figure) as shown in Figure 7, by curve it is found that the wide-angle lens is greater than in full filed range relative illumination
0.7 and curve it is more smooth, show the wide-angle lens shooting picture entire visual field brightness of image relatively, will not
There is the darker situation in part.
Claims (8)
1. a kind of million bugeye lenses, it is characterised in that: including the first lens cells being sequentially coaxially arranged from object side to image side
Part (1), the second lens element (2), the third lens element (3), the 4th lens element (4), the 5th lens element (5), the 6th are thoroughly
Mirror element (6)；
First lens element (1) is the meniscus lens with negative power, and object side is the first convex surface, and image side surface is
First concave surface, the first convex surface and the first concave surface are spherical surface；The radius of curvature on first convex surface is 7.2mm < R < 9.6mm,
The radius of curvature of first concave surface is 1.5mm < R < 3.5mm；
Second lens element (2) is the meniscus lens with negative power, and object side is the second convex surface, and image side surface is
Second concave surface, the second convex surface and the second concave surface are spherical surface；The radius of curvature on second convex surface is 18.7mm < R <
20.7mm, the radius of curvature of the second concave surface are 1.6mm < R < 3.2mm；
The third lens element (3) is the lenticular lens with positive light coke, and object side is third convex surface, and image side surface is
4th convex surface, third convex surface and the 4th convex surface are spherical surface；The radius of curvature on the third convex surface is 10.0mm < R <
11.5mm, the radius of curvature on the 4th convex surface are 5.5mm < R < 6.8mm；
4th lens element (4) is the lenticular lens with positive light coke, and object side is the 5th convex surface, and image side surface is
6th convex surface, the 5th convex surface and the 6th convex surface are spherical surface；The radius of curvature on the 5th convex surface is 121.5mm < R <
123.8mm, the radius of curvature on the 6th convex surface are 2.5mm < R < 4.2mm；
5th lens element (5) is the lenticular lens with positive light coke, and object side is the 7th convex surface, and image side surface is
8th convex surface, the 7th convex surface and the 8th convex surface are spherical surface；The radius of curvature on the 7th convex surface is 3.5mm < R < 5.2mm,
The radius of curvature on the 8th convex surface is 1.6mm < R < 3.2mm；
6th lens element (6) is the meniscus lens with negative power, and object side is third concave surface, and image side surface is
9th convex surface, third concave surface, the 9th convex surface are spherical surface；The radius of curvature of the third concave surface is 1.6mm < R < 3.2mm, the
The radius of curvature on nine convex surfaces is 6.9mm < R < 8.5mm；
5th lens element (5), the 6th lens element (6) form cemented doublet.
2. a kind of million bugeye lens according to claim 1, it is characterised in that: the first lens element (1), second are thoroughly
Mirror element (2), the third lens element (3), the 4th lens element (4), the 5th lens element (5), the 6th lens element (6) use
Glass material is made.
3. a kind of million bugeye lens according to claim 2, it is characterised in that: the first lens element (1) warp
Tempering processing；Surface is equipped with waterproof membrane.
4. a kind of million bugeye lens according to claim 1, it is characterised in that: the 6th lens element (6)
Image side is provided with optical filter (7).
5. a kind of million bugeye lens according to claim 1, it is characterised in that: the 4th lens element (4)
Object side is provided with diaphragm (8), and diaphragm (8) is located at the 4th convex surface and the 5th of the 4th lens element (4) of the third lens element (3)
Between convex surface.
6. a kind of million bugeye lens according to claim 1, it is characterised in that:
First lens element (1) meets: 1.67≤Nd1≤1.87；49.1≤Vd1≤50.1；
Second lens element (2) meets: 1.67≤Nd2≤1.87；49.1≤Vd2≤50.1；
The third lens element (3) meets: 1.74≤Nd3≤1.94；23.1≤Vd3≤24.1；
4th lens element (4) meets: 1.62≤Nd4≤1.82；54.1≤Vd4≤55.1；
5th lens element (5) meets: 1.62≤Nd5≤1.82；54.1≤Vd5≤55.1；
6th lens element (6) meets: 1.82≤Nd6≤2.02；18.1≤Vd6≤19.1；
Wherein, Nd1、Nd2、Nd3、 Nd4、Nd5、Nd6It is saturating to respectively indicate the first lens element (1), the second lens element (2), third
The light that mirror element (3), the 4th lens element (4), the 5th lens element (5), the 6th lens element (6) are 587.4nm to wavelength
The refractive index of line, Vd1、Vd2、Vd3、Vd4、Vd5、Vd6First lens element (1), the second lens element (2), the third lens element
(3), the 4th lens element (4), the 5th lens element (5), the 6th lens element (6) to wavelength be 587.4nm light Ah
Shellfish number.
7. a kind of million bugeye lens according to claim 1, it is characterised in that: million bugeye lens is full
Foot: the optics overall length mm of TTL≤12.5, horizontal, vertical, diagonal field of view angle FOV >=200 °.
8. a kind of million bugeye lens according to claim 1, it is characterised in that: million bugeye lens is full
Foot: image height >=3.5mm, F-number F/NO≤2.0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821476041.8U CN209028284U (en) | 2018-09-10 | 2018-09-10 | A kind of million bugeye lenses |
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| CN201821476041.8U CN209028284U (en) | 2018-09-10 | 2018-09-10 | A kind of million bugeye lenses |
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ID=66904475
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047222A1 (en) * | 2019-09-12 | 2021-03-18 | 江西联创电子有限公司 | Wide-angle imaging lens |
| CN112698474A (en) * | 2019-10-23 | 2021-04-23 | 深圳长城开发科技股份有限公司 | Ultra-wide angle lens |
| WO2022016316A1 (en) * | 2020-07-20 | 2022-01-27 | 欧菲光集团股份有限公司 | Optical lens, image capturing module, electronic device, and driving device |
-
2018
- 2018-09-10 CN CN201821476041.8U patent/CN209028284U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047222A1 (en) * | 2019-09-12 | 2021-03-18 | 江西联创电子有限公司 | Wide-angle imaging lens |
| CN112698474A (en) * | 2019-10-23 | 2021-04-23 | 深圳长城开发科技股份有限公司 | Ultra-wide angle lens |
| WO2022016316A1 (en) * | 2020-07-20 | 2022-01-27 | 欧菲光集团股份有限公司 | Optical lens, image capturing module, electronic device, and driving device |
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