CN206557460U - A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens - Google Patents
A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens Download PDFInfo
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- CN206557460U CN206557460U CN201621096764.6U CN201621096764U CN206557460U CN 206557460 U CN206557460 U CN 206557460U CN 201621096764 U CN201621096764 U CN 201621096764U CN 206557460 U CN206557460 U CN 206557460U
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- lens
- lens group
- operating distance
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- small volume
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Abstract
A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens, including the first lens group and the second lens group, and diaphragm is provided between first lens group and the second lens group；The short 4K line drawings of the low operating distance of small volume cost sweep camera lens and move to reach the purpose of focusing Jiao along optical axis direction together with diaphragm with the second lens group by the first lens group of regulation, and realize that operating distance can be with blur-free imaging in 100mm 600mm, substantially reduce space needed for focusing, reduce camera lens volume, reduce production cost, operating distance is short, is worth promoting.
Description
Technical field
The utility model is related to line and sweeps camera lens field, and especially a kind of short 4K line drawings of the low operating distance of small volume cost sweep mirror
Head.
Background technology
Present automatic optical detection equipment has been applied to many industry detections, including wiring board printing, liquid crystal display etc.
Deng, and it is one of core component of optics automatic detection that line, which sweeps camera lens, at present many equipment vendors in order to equipment do it is small-sized
Therefore change needs to require very short to operating distance, requires tighter to distortion in order to which the precision to image further lifts needs,
Therefore it is accomplished by developing the small line of the short distortion of a low operating distance of small volume cost and sweeps camera lens.
The content of the invention
It is short that the utility model aims to provide a kind of short low operating distance of small volume cost of low operating distance of small volume cost
4K line drawings sweep camera lens.
To achieve the above object, the utility model provides following technical scheme：A kind of low operating distance of small volume cost is short
4K line drawings sweep camera lens, including the first lens group and the second lens group, and light is provided between first lens group and the second lens group
Door screen.
It is used as further scheme of the present utility model：First lens group, diaphragm and the second lens group are coaxially disposed.
It is used as further scheme of the present utility model：First lens group includes the first lens, the second lens and the 3rd
Lens, wherein the first lens are located at side of first lens group away from diaphragm, the 3rd lens are located at the first lens group close to diaphragm
Side, the second lens be located between the first lens and the 3rd lens.
It is used as further scheme of the present utility model：Second lens group includes the 4th lens and the 5th lens, wherein
First lens are located at the second lens group close to the side of diaphragm, and the 4th lens include the 6th lens and the 7th lens.
It is used as further scheme of the present utility model：First lens, the second lens, the 3rd lens, the 4th lens and
5th lens are combined by spheric glass.
Compared with prior art, the beneficial effects of the utility model are：The short 4K line drawings of the low operating distance of small volume cost
Camera lens is swept to move to reach the mesh of focusing Jiao along optical axis direction together with diaphragm with the second lens group by the first lens group of regulation
, and realize that operating distance can substantially reduce space needed for focusing in 100mm-600mm with blur-free imaging, reduce camera lens volume,
Production cost is reduced, operating distance is short, is worth promoting.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the first lens group of the present utility model；
Fig. 3 is the structural representation of the second lens group of the present utility model；
Fig. 4 is the structural representation of the 4th lens of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1-4, the utility model embodiment, a kind of short 4K line drawings of the low operating distance of small volume cost sweep mirror
Head, including the first lens group G1 and the second lens group G2, are provided with diaphragm between the first lens group G1 and the second lens group G2
1。
Above-mentioned, the first lens group G1, the lens group G2 of diaphragm 1 and second are coaxially disposed.
It is above-mentioned, the first lens group G1, with positive refractive power, comprising the first lens 2 with positive refractive power, with just
Second lens 3 of refracting power, the 3rd lens 4 with negative refractive power, wherein the first lens 2 are remote located at the first lens group G1
From the side of diaphragm 1, the 3rd lens 4 are located at the first lens group G1 close to the side of diaphragm 1, and the second lens 3 are located at the first lens 2
Between the 3rd lens 4.
Above-mentioned, the second lens group G2 has positive refractive power, comprising the 4th lens 5 with positive refractive power, with just
5th lens 6 of refracting power, wherein the first lens 2 are located at the second lens group G2 close to the side of diaphragm 1, the 4th lens 5 are wrapped
Containing the 6th lens L1 and the 7th lens L2 of negative refractive power each one piece of lens with positive refractive power.
Move to reach focusing along optical axis direction together with diaphragm 1 with the second lens group G2 by the first lens group G1 of regulation
Burnt purpose.
First lens group G1 is satisfied the following conditional expression with the second lens group G2 focal lengths：
Conditional 4.5<∣fl/f2∣<5.5
Conditional 0.2<∣f0/f1∣<0.3
Wherein f1 represents the first lens group G1 focal length, and f2 represents the second lens group G2 focal length, and f0 represents the first lens
Group G1 and the second lens group G2 combined focal length.
Above-mentioned, the short 4K line drawings of the low operating distance of small volume cost sweep camera lens, also meet conditional：
Ymax/Fw > 0.9
It is high that wherein Ymax represents maximum real image.
Fw represents the first lens group G1 and the second lens group G2 combined focal length.
Above-mentioned, the short 4K line drawings of the low operating distance of small volume cost sweep camera lens, and each lens are combined by spheric glass.
The specific implementation data such as following table of embodiment 1：
It can be seen that according to the 1st embodiment.The utility model realizes that focal length is 29mm, by adjusting the first lens group G1 and the
Two lens group G2 move to reach closely together with diaphragm 1 along optical axis direction（100mm-600mm）It is imaged purpose.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (2)
1. a kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens, including the first lens group and the second lens group, it is special
Levy and be, diaphragm is provided between first lens group and the second lens group；First lens group, diaphragm and the second lens group
It is coaxially disposed；First lens group includes the first lens, the second lens and the 3rd lens, wherein the first lens are saturating located at first
Side of the microscope group away from diaphragm, the 3rd lens are located at the first lens group close to the side of diaphragm, and the second lens are located at the first lens
Between the 3rd lens；Second lens group includes the 4th lens and the 5th lens, wherein the first lens are located at the second lens
Group includes the 6th lens and the 7th lens close to the side of diaphragm, the 4th lens.
2. a kind of short 4K line drawings of the low operating distance of small volume cost according to claim 1 sweep camera lens, it is characterised in that institute
The first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens are stated to combine by spheric glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621096764.6U CN206557460U (en) | 2016-09-30 | 2016-09-30 | A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621096764.6U CN206557460U (en) | 2016-09-30 | 2016-09-30 | A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206557460U true CN206557460U (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621096764.6U Active CN206557460U (en) | 2016-09-30 | 2016-09-30 | A kind of short 4K line drawings of the low operating distance of small volume cost sweep camera lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542979A (en) * | 2019-01-28 | 2019-12-06 | 广州长步道光电科技有限公司 | Large-light-transmission-aperture industrial lens system |
-
2016
- 2016-09-30 CN CN201621096764.6U patent/CN206557460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542979A (en) * | 2019-01-28 | 2019-12-06 | 广州长步道光电科技有限公司 | Large-light-transmission-aperture industrial lens system |
| CN110542979B (en) * | 2019-01-28 | 2023-08-25 | 湖南长步道光学科技有限公司 | Industrial lens system with large clear aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220509 Address after: No. 8, Hongda Road, Hongtang village, Tongsheng street, Yuhua District, Changsha City, Hunan Province, 410116 Patentee after: HUNAN CHIOPT OPTICAL TECHNOLOGY Co.,Ltd. Address before: 511400 2nd floor, No.1 Workshop, Jinshan Industrial Park, pengdizhuang, lirendong village, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CHIOPT OPTOTECH Co.,Ltd. |
|
| TR01 | Transfer of patent right |