CN206930832U - A kind of wide-angle high definition machine visual lens - Google Patents
A kind of wide-angle high definition machine visual lens Download PDFInfo
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- CN206930832U CN206930832U CN201720601958.5U CN201720601958U CN206930832U CN 206930832 U CN206930832 U CN 206930832U CN 201720601958 U CN201720601958 U CN 201720601958U CN 206930832 U CN206930832 U CN 206930832U
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- end surfaces
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- light coke
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Abstract
The utility model provides a kind of wide-angle high definition machine visual lens, including focusing group and fixed group, the focusing group includes the first lens with positive light coke being arranged in order from the object side to the image side along optical axis, the second lens with negative power and the 3rd lens with negative power, the fixed group includes the 4th lens with positive light coke being arranged in order from the object side to the image side along optical axis, the 5th lens with positive light coke, the 6th lens with negative power, the 7th lens with positive light coke, the 8th lens with positive light coke and the 9th lens with negative power.The camera lens ensure that 0.1mm is good to image quality effect under the object distance of infinity by the way of packet is focused, and distorts and be less than 1%；Optical system rim ray relative illumination is more than 70%；The angle of visual field is supported to be more than 70 °；Using ensureing that resolving power meets imaging requirements under 40~70 DEG C of environment.
Description
Technical field
It the utility model is related to optical lens technical field, more particularly to a kind of wide-angle high definition machine visual lens.
Background technology
Machine visual lens are widely used in the fields such as the manufacturing, quality testing, logistics, medical science, scientific research.With
The development of the strategy of made in China 2025, industrial automation is fast-developing, and " eye of the machine visual lens as automatic machinery
Eyeball " is in occupation of critical role.
Machine visual lens be for general on fixed position monitoring, detection particular range in target, this requires that camera lens has
Occupy little space, field range is big, distortion is low, as matter it is high the features such as.Conventional machines vision lenses use double-Gauss structure, this
Kind structure is just difficult to ensure that the image quality of peripheral field when the angle of visual field is more than 45 °.
Utility model content
The utility model provides a kind of wide-angle high definition machine visual lens, solve conventional lenses visual field scope it is small, into
As technical problem second-rate and that distortion is high.
In order to solve the above-mentioned technical problem, technical solution adopted in the utility model is：
A kind of wide-angle high definition machine visual lens, including focusing group and fixed group, when operating distance changes, focusing group phase
Fixed group is moved forward and backward to focus, so as to find optimum image plane；
The focusing group include be arranged in order from the object side to the image side along optical axis the first lens with positive light coke, with
Second lens of negative power and the 3rd lens with negative power, the fixed group include along optical axis from the object side to the image side according to
The 4th lens with positive light coke of secondary arrangement, the 5th lens with positive light coke, the 6th lens with negative power,
The 7th lens, the 8th lens with positive light coke and the 9th lens with negative power with positive light coke；The tune
The whole camera lenses of Jiao Zuyu meet following conditional：
0.8 ≤ ∣ ft/f ∣≤1.2, wherein, ft is the combined focal length of focusing group, and f is the focal length of whole camera lens.
Further, the 5th lens and the 6th lens are glued forms the first balsaming lens, the 8th lens and the
Nine lens combinations form the second balsaming lens, and the 8th lens and the 9th lens meet following conditional：∣Nd8-Nd9∣≥
0.25；∣ Vd8-Vd9 ∣ >=30, wherein, Nd8, Nd9 are respectively the refractive index of the 8th lens and the 9th lens, and Vd8, Vd9 are respectively
The Abbe number of 8th lens and the 9th lens.
Preferably, the material of the 8th lens is fluorine crown series or weighs phosphorus crown P series glass material, the 9th lens
Material be high index of refraction dense flint P series glass material.
Preferably, it is provided with diaphragm between the 4th lens and the 5th lens.
Preferably, first lens include the first thing end surfaces and first as end surfaces, and second lens include the
For two thing end surfaces and second as end surfaces, the 3rd lens include the 3rd thing end surfaces and the 3rd as end surfaces, and the described 4th
Lens include the 4th thing end surfaces and the 4th as end surfaces, and first balsaming lens includes the 5th thing end surfaces, the first gluing
As end surfaces, the 7th lens include the 7th thing end surfaces and the 7th as end surfaces, second balsaming lens in face and the 6th
Including the 8th thing end surfaces, the second cemented surface and the 9th as end surfaces, above-mentioned property end surfaces, as end surfaces and cemented surface it is equal
For sphere.
Preferably, the first thing end surfaces, the second thing end surfaces, the 4th thing end surfaces, the 4th are as end surfaces, the 5th thing
End surfaces, the 7th thing end surfaces, the 7th are as end surfaces, the 8th thing end surfaces and the 9th as end surfaces are convex surface；Described first
As end surfaces, second are as end surfaces, the 3rd thing end surfaces, the 3rd are as end surfaces and the 6th are as end surfaces are concave surface.
The utility model provides a kind of wide-angle high definition machine visual lens, including focusing group and fixed group, the focusing group
Including the first lens with positive light coke, the second lens with negative power being arranged in order from the object side to the image side along optical axis
With the 3rd lens with negative power, the fixed group includes having positive light focus along what optical axis was arranged in order from the object side to the image side
Degree the 4th lens, the 5th lens with positive light coke, the 6th lens with negative power, the with positive light coke the 7th
Lens, the 8th lens with positive light coke and the 9th lens with negative power；The focusing group meets with whole camera lens
Following conditional：0.8 ≤ ∣ ft/f ∣≤1.2, wherein, ft is the combined focal length of focusing group, and f is the focal length of whole camera lens.The mirror
Head uses full glass spheric glass, it is ensured that ensures material low cost, eyeglass easy processing while optical property.Design is using packet
It the mode of focusing, ensure that 0.1mm is good to image quality effect under the object distance of infinity, and distort and be less than 1%；Optical system edge
Light relative illumination is more than 70%；The angle of visual field is supported to be more than 70 °；Met under -40~70 DEG C of environment using guarantee resolving power
Imaging requirements.
Brief description of the drawings
Fig. 1 is a kind of structural representation of wide-angle high definition machine visual lens of the utility model.
Embodiment
Below in conjunction with the accompanying drawings, embodiment of the present utility model is specifically illustrated, accompanying drawing is only for reference and explanation uses, not structure
The limitation of paired the utility model patent protection domain.
As shown in figure 1, a kind of wide-angle high definition machine visual lens, including focusing group and fixed group, when operating distance changes
When, focusing group is relatively fixed group and moved forward and backward to be focused, so as to find optimum image plane；
The focusing group includes the first lens G1 with positive light coke, the tool being arranged in order from the object side to the image side along optical axis
Have a second lens G2 of negative power and the 3rd lens G3 with negative power, the fixed group include along optical axis from object space to
The 4th lens G4 with positive light coke that image space is arranged in order, the 5th lens G5 with positive light coke, with negative power
The 6th lens G6, the 7th lens G7 with positive light coke, the 8th lens G8 with positive light coke and with negative power
The 9th lens G9；The focusing group meets following conditional with whole camera lens：
0.8 ≤ ∣ ft/f ∣≤1.2, wherein, ft is the combined focal length of focusing group, and f is the focal length of whole camera lens；Specifically,
The focal length f=8mm of whole camera lens, the combined focal length ft=-8.1mm of focusing group, "-" represent focal power to bear；∣ ft/f ∣ ratio
Value can select one in 0.8,0.85,0.9,0.95,1.0,1.05,1.1,1.15 and 1.2.
The 5th lens G5 and the 6th lens G6 are glued to form the first balsaming lens U1, the 8th lens G8 and the 9th
Lens G9, which is combined, to be formed the second balsaming lens U2, the 8th lens G8 and the 9th lens G9 and meets following conditional：∣Nd8-
Nd9∣≥0.25；∣ Vd8-Vd9 ∣ >=30, wherein, Nd8, Nd9 are respectively the 8th lens G8 and the 9th lens G9 refractive index,
Vd8, Vd9 are respectively the Abbe number of the 8th lens and the 9th lens.
The material of the 8th lens G8 phosphorus crown P series glass material, material of the 9th lens G9 for fluorine crown series or again
Expect the dense flint P series glass material for high index of refraction.
Diaphragm is provided between 4th lens and the 5th lens.
The first lens G1 includes the first thing end surfaces S1 and first as end surfaces S2, and the second lens G2 includes the
For two thing end surfaces S3 and second as end surfaces S4, the 3rd lens G3 includes the 3rd thing end surfaces S5 and the 3rd as end surfaces
S6, the 4th lens G4 include the 4th thing end surfaces S7 and the 4th as end surfaces S8, and the first balsaming lens U1 includes the
Five thing end surfaces S10, the first cemented surface S11 and the 6th picture end surfaces S12, the 7th lens G7 include the 7th thing end surfaces
For S13 and the 7th as end surfaces S14, the second balsaming lens U2 includes the 8th thing end surfaces S15, the second cemented surface S16 and the
Nine as end surfaces S17, above-mentioned property end surfaces, as end surfaces and cemented surface are sphere.
The first thing end surfaces S1, the second thing end surfaces S3, the 4th thing end surfaces S7, the 4th are as end surfaces S8, the 5th
Thing end surfaces S10, the 7th thing end surfaces S13, the 7th are as end surfaces S14, the 8th thing end surfaces S15 and the 9th are as end surfaces S17
It is convex surface；Described first as end surfaces S2, second are as end surfaces S4, the 3rd thing end surfaces S5, the 3rd are as end surfaces S6 and the
Six as end surfaces S12 be concave surface.
In the present embodiment, the physical parameter on each surface of each lens of camera lens from object space to image space：
Wherein, D is to correspond to the optical surface of lens to the distance (distance on optical axis) of next optical surface；Nd is represented
The refractive index of corresponding d light (wavelength is 587 nanometers), R is subsequent corrosion, and "-" represents that direction is negative.
In the present embodiment, whole camera lens relative aperture FNO is 1:2.8, angle of visual field FOV are 70 °.When object distance is 0.3m
When, the spacing distance of focusing group and fixed group be 5.2mm, when object distance from it is infinite as far as being moved between 0.1mm when, focusing group with admittedly
Surely it is 5.05mm-5.6mm to organize spacing distance scope.
Above disclosed is only preferred embodiment of the present utility model, it is impossible to limits right of the present utility model with this
Protection domain, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the model that the utility model is covered
Enclose.
Claims (6)
- A kind of 1. wide-angle high definition machine visual lens, it is characterised in that：Including focusing group and fixed group, when operating distance changes When, focusing group is relatively fixed group and moved forward and backward to be focused, so as to find optimum image plane；The focusing group include be arranged in order from the object side to the image side along optical axis the first lens with positive light coke, with negative light Second lens of focal power and the 3rd lens with negative power, the fixed group include arranging successively from the object side to the image side along optical axis Row the 4th lens with positive light coke, the 5th lens with positive light coke, the 6th lens with negative power, with The 7th lens, the 8th lens with positive light coke and the 9th lens with negative power of positive light coke；The focusing group Meet following conditional with whole camera lens：0.8 ≤ ∣ ft/f ∣≤1.2, wherein, ft is the combined focal length of focusing group, and f is the focal length of whole camera lens.
- A kind of 2. wide-angle high definition machine visual lens according to claim 1, it is characterised in that：5th lens and Six lens are glued to form the first balsaming lens, the second balsaming lens of the 8th lens and the 9th the lens combination formation, and described the Eight lens and the 9th lens meet following conditional：∣Nd8-Nd9∣≥0.25；∣ Vd8-Vd9 ∣ >=30, wherein, Nd8, Nd9 difference For the refractive index of the 8th lens and the 9th lens, Vd8, Vd9 are respectively the Abbe number of the 8th lens and the 9th lens.
- A kind of 3. wide-angle high definition machine visual lens according to claim 2, it is characterised in that：The material of 8th lens Expect that for fluorine crown series or weight phosphorus crown P series glass material, the material of the 9th lens be the dense flint P series glass of high index of refraction Material.
- A kind of 4. wide-angle high definition machine visual lens according to claim 1, it is characterised in that：4th lens and Diaphragm is provided between five lens.
- A kind of 5. wide-angle high definition machine visual lens according to claim 2, it is characterised in that：First lens include For first thing end surfaces and first as end surfaces, second lens include the second thing end surfaces and second as end surfaces, and described the Three lens include the 3rd thing end surfaces and the 3rd as end surfaces, and the 4th lens include the 4th thing end surfaces and the 4th as end table Face, first balsaming lens include the 5th thing end surfaces, the first cemented surface and the 6th as end surfaces, the 7th lens include 7th thing end surfaces and the 7th picture end surfaces, second balsaming lens include the 8th thing end surfaces, the second cemented surface and the 9th As end surfaces, above-mentioned property end surfaces, as end surfaces and cemented surface are sphere.
- A kind of 6. wide-angle high definition machine visual lens according to claim 5, it is characterised in that：The first thing end table Face, the second thing end surfaces, the 4th thing end surfaces, the 4th are as end surfaces, the 5th thing end surfaces, the 7th thing end surfaces, the 7th are as end Surface, the 8th thing end surfaces and the 9th are convex surface as end surfaces；Described first as end surfaces, second are as end surfaces, the 3rd thing End surfaces, the 3rd are as end surfaces and the 6th are as end surfaces are concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601958.5U CN206930832U (en) | 2017-05-26 | 2017-05-26 | A kind of wide-angle high definition machine visual lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601958.5U CN206930832U (en) | 2017-05-26 | 2017-05-26 | A kind of wide-angle high definition machine visual lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930832U true CN206930832U (en) | 2018-01-26 |
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ID=61352638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720601958.5U Withdrawn - After Issue CN206930832U (en) | 2017-05-26 | 2017-05-26 | A kind of wide-angle high definition machine visual lens |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116518A (en) * | 2018-10-20 | 2019-01-01 | 福建福光股份有限公司 | Low industrial camera lens and its focus adjustment method of distorting of 1.1 inches big target surface 35mm focal length high definition |
| CN109375346A (en) * | 2018-07-20 | 2019-02-22 | 瑞声声学科技(深圳)有限公司 | Pick-up lens |
| CN109541781A (en) * | 2018-07-20 | 2019-03-29 | 瑞声声学科技(深圳)有限公司 | Pick-up lens |
-
2017
- 2017-05-26 CN CN201720601958.5U patent/CN206930832U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375346A (en) * | 2018-07-20 | 2019-02-22 | 瑞声声学科技(深圳)有限公司 | Pick-up lens |
| CN109541781A (en) * | 2018-07-20 | 2019-03-29 | 瑞声声学科技(深圳)有限公司 | Pick-up lens |
| WO2020125162A1 (en) * | 2018-07-20 | 2020-06-25 | 瑞声通讯科技(常州)有限公司 | Camera lens |
| WO2020125163A1 (en) * | 2018-07-20 | 2020-06-25 | 瑞声通讯科技(常州)有限公司 | Camera lens |
| CN109116518A (en) * | 2018-10-20 | 2019-01-01 | 福建福光股份有限公司 | Low industrial camera lens and its focus adjustment method of distorting of 1.1 inches big target surface 35mm focal length high definition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Pinguang Inventor after: Mi Shilong Inventor after: Liu Guanlu Inventor after: He Jianwei Inventor after: Mao Caiying Inventor before: Mi Shilong |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230516 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230516 |