CN209640583U - A kind of infrared lens and sweeping robot - Google Patents
A kind of infrared lens and sweeping robot Download PDFInfo
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- CN209640583U CN209640583U CN201920576735.7U CN201920576735U CN209640583U CN 209640583 U CN209640583 U CN 209640583U CN 201920576735 U CN201920576735 U CN 201920576735U CN 209640583 U CN209640583 U CN 209640583U
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Abstract
The utility model provides a kind of infrared lens, and structure is simple, easy processing, it distorts small, suitable for sweeping robot, the comprehensive performance of camera lens is improved, furthermore, the utility model additionally provides the sweeping robot using the infrared lens, it includes setting gradually from object space to image space: the first lens, the second lens, the third lens, the first lens, has positive focal power, the object plane side of first lens is convex surface, and the image planes side of first lens is concave surface；Second lens have negative focal power, and the object plane side of second lens is concave surface, and the image planes side of second lens is concave surface；The third lens have positive focal power, and the object plane side of the third lens is convex surface, and the image planes side of the third lens is convex surface.
Description
Technical field
The utility model relates to optical lens technology fields, and in particular to a kind of infrared lens and sweeping robot.
Background technique
Smart home (smart home, home automation) be using house as platform, using comprehensive wiring technology,
Network communication technology, security precautions technology, automatic control technology, audio and video technology integrate the related facility of home life, structure
The management system of efficient housing facilities and family's schedule affairs is built, house security, convenience, comfort, artistry are promoted,
And realize the living environment of environmental protection and energy saving.
Sweeping robot also known as sweeps machine, intelligent dust suction, robot cleaner etc. automatically, is the one of controlling intelligent household appliances
Kind, certain artificial intelligence can be relied on, complete floor cleaning work in the room automatically.General use brush is swept and vacuum mode,
Ground sundries is first received into the rubbish storage box into itself, to complete the function of land clearing.
As scientific and technological made rapid progress develops, the requirement to the important electronic component high definition camera lens acquired as pattern is increasingly
It is high.Currently, the resolution ratio of the camera lens for sweeping robot is lower, imaging size is small, and there are dead angles when causing to shoot, secretly
Phenomena such as angle, fogging image, to be difficult to reach ideal using effect.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of infrared lens, structure is simple, easy processing, distorts small, fits
For sweeping robot, the comprehensive performance of camera lens is improved, furthermore the utility model additionally provides sweeping the floor using the infrared lens
Robot.
Its technical solution is such that a kind of infrared lens, which is characterized in that it includes setting gradually from object space to image space
: the first lens, the second lens, the third lens,
First lens, have positive focal power, and the object plane side of first lens is convex surface, the image planes of first lens
Side is concave surface；
Second lens, have negative focal power, and the object plane side of second lens is concave surface, the image planes of second lens
Side is concave surface；
The third lens, have positive focal power, and the object plane side of the third lens is convex surface, the image planes of the third lens
Side is convex surface；
Meanwhile meeting following relationship:
0<f1<1,-1<f2<0,0<f3<1
Wherein, f1 is the focal length value of the first lens, and f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens.
Further, infrared lens also meet following relationship:
14<f1/f<15,-8<f2/f<-7,9<f3/f<10
F1 is the focal length value of the first lens, and f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens, and f is red
The focal length value of outer camera lens.
Further, first lens, the second lens, the third lens are glass lens.
Further, first lens, the second lens, the third lens two sides be spherical surface.
Further, first lens also meet the following conditions: 1.8 < Nd1 <, 2.0,30 < Vd1 < 40；Wherein, institute
The optical index that Nd1 is the first lens is stated, the Vd1 is the Abbe constant of the first lens；
Second lens also meet the following conditions: 1.5 < Nd2 <, 1.7,30 < Vd2 < 50；Wherein, the Nd2 is the
The optical index of two lens, the Vd2 are the Abbe constant of the second lens；
The third lens also meet the following conditions: 1.9 < Nd3 <, 2.0,30 < Vd3 < 40；Wherein, the Nd3 is the
The optical index of three lens, the Vd3 are the Abbe constant of the third lens.
It further, further include IR filter plate and protection glass, it is separate that the IR filter plate is located at the third lens
The side of object space, the protection glass are located at the side of the IR filter plate far from object space.
Further, the distortion of infrared lens is less than 1%.
A kind of sweeping robot, which is characterized in that use above-mentioned infrared lens.
The infrared lens of the utility model realize small distortion, and distortion about 1%, the influence to human eye judgement can neglect
Slightly, using 3 lens structures, make camera lens weight saving, while reducing the production cost and difficulty of processing of camera lens, improve mirror
The comprehensive performance of head is suitable for intelligent robot monitoring system field, improves mirror to meet the special applications requirement of infrared monitoring
The comprehensive performance of head.
Detailed description of the invention
Fig. 1 is the structure constitutional diagram of infrared lens of the invention；
Fig. 2 is the MTF curve figure of the infrared lens in embodiment；
Fig. 3 is the distortion curve of the infrared lens in embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
See Fig. 1, a kind of infrared lens of the utility model comprising set gradually from object space to image space: the first lens
1, the second lens 2, the third lens 3, imaging surface 4, in Fig. 1, object space is located at the left side in figure, and image space is located at the right side in figure,
From the left side in figure to right side as from object space to image space,
First lens 1, have positive focal power, and the object plane side S1 of the first lens is convex surface, the image planes side S2 of the first lens
For concave surface；
Second lens 2, have negative focal power, and the object plane side S3 of the second lens is concave surface, the image planes side S4 of the second lens
For concave surface；
The third lens 3, have positive focal power, and the object plane side S6 of the third lens is convex surface, the image planes side S5 of the third lens
For convex surface；
Meanwhile meeting following relationship:
0<f1<1,-1<f2<0,0<f3<1,
14<f1/f<15,-8<f2/f<-7,9<f3/f<10
F1 is the focal length value of the first lens, and f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens, and f is red
The focal length value of outer camera lens.
In the present embodiment, the first lens, the second lens, the third lens are glass lens, and the first lens, second are thoroughly
Mirror, the third lens two sides be spherical surface.
Preferably, the first lens also meet the following conditions: 1.8 < Nd1 <, 2.0,30 < Vd1 < 40；Wherein, Nd1
The optical index of one lens, Vd1 are the Abbe constant of the first lens；
Second lens also meet the following conditions: 1.5 < Nd2 <, 1.7,30 < Vd2 < 50；Wherein, Nd2 is the second lens
Optical index, Vd2 are the Abbe constant of the second lens；
The third lens also meet the following conditions: 1.9 < Nd3 <, 2.0,30 < Vd3 < 40；Wherein, Nd3 is the third lens
Optical index, Vd3 are the Abbe constant of the third lens.
In order to advanced optimize the performance of the infrared lens, the infrared lens of present embodiment further include IR filter plate 5
And protection glass 6.
Specifically, IR filter plate 5 is located at side of the third lens 3 far from object space, and it is remote that protection glass 6 is located at IR filter plate 5
Side from object space, the main function of IR filter plate 5 are to filter interference of the infrared band to imaging, effectively improve camera lens at
As quality, the main function of protection glass 6 is for protecting photosensory assembly.
In the present embodiment, the first lens, the second lens, the third lens, IR filter plate, protection glass meet following such as institute
The condition shown:
Table 1
When the radius of curvature of diaphragm, IR optical filter and protection glass surface is Infinity in table 1, indicate that this surface is flat
Face.
Preferably, IR filter plate uses the optical glass for selecting that line refractive index is 64 for 1.52, Abbe constant；Preferably,
It is 1.52 that protection glass 9, which selects refractive index, the optical glass that Abbe constant is 64.
Optic test is carried out to the infrared lens in above-described embodiment, Fig. 2 is the MTF of the infrared lens in above-described embodiment
Curve graph, abscissa is spatial frequency in Fig. 2, and ordinate is contrast；TS Diff.Limit is spreading out for meridian and sagitta of arc direction
Emitter-base bandgap grading limit, TS 0.00 (deg) indicate the diffraction curve of meridian and sagitta of arc direction in 0.00 visual field of image planes；MTF is to use at present
A kind of commonplace image quality evaluation index, referred to as modulation transfer function.Modulation transfer function: picture under certain space frequency
Contrast and the ratio between the contrast of object.It can reflect the transmission capacity of different space frequency, different contrast.Modulation transfer function
MTF can be used for indicating the feature of optical system, and MTF is bigger, indicate that the image quality of system is better, from Figure 2 it can be seen that the present embodiment
In infrared lens image quality it is preferable.
Fig. 3 is the distortion curve of the infrared lens in above-described embodiment, and left figure is field curve figure, the vertical seat of curvature of field figure
Mark is field angle, and abscissa is the distance that picture point deviates near-axis image surface, and T indicates that meridianal curvature of field, S indicate Sagittal field curvature.Right figure is
Distortion curve, the ordinate of distortion figure are field angles, and abscissa is distortion percentage, and field curve is shown as visual field coordinate
The current focal plane of function or as plane is to the distance of paraxial focal plane, is divided into meridianal curvature of field and Sagittal field curvature.Distortion belongs to master
Ray aberration, the similarity degree of reflection elephant, the infrared lens in the specific embodiment, optical distortion is smaller, and distortion is maximum
Value is less than 1%, image definition.
In addition, the utility model additionally provides a kind of sweeping robot, using above-mentioned infrared lens.
The infrared lens of the utility model realize small distortion, and distortion about 1%, the influence to human eye judgement can neglect
Slightly, using 3 lens structures, make camera lens weight saving, while reducing the production cost and difficulty of processing of camera lens, improve mirror
The comprehensive performance of head is suitable for intelligent robot monitoring system field, improves mirror to meet the special applications requirement of infrared monitoring
The comprehensive performance of head.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (8)
1. a kind of infrared lens, which is characterized in that it includes setting gradually from object space to image space: the first lens, the second lens,
The third lens,
First lens have positive focal power, and the object plane side of first lens is convex surface, and the image planes side of first lens is
Concave surface；
Second lens have negative focal power, and the object plane side of second lens is concave surface, and the image planes side of second lens is
Concave surface；
The third lens have positive focal power, and the object plane side of the third lens is convex surface, and the image planes side of the third lens is
Convex surface；
Meanwhile meeting following relationship:
0<f1<1,-1<f2<0,0<f3<1
Wherein, f1 is the focal length value of the first lens, and f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens.
2. a kind of infrared lens according to claim 1, it is characterised in that: infrared lens also meet following relationship:
14<f1/f<15,-8<f2/f<-7,9<f3/f<10
F1 is the focal length value of the first lens, and f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens, and f is infrared mirror
The focal length value of head.
3. a kind of infrared lens according to claim 1, it is characterised in that: first lens, the second lens, third are saturating
Mirror is glass lens.
4. a kind of infrared lens according to claim 1, it is characterised in that: first lens, the second lens, third are saturating
Two sides of mirror are spherical surface.
5. a kind of infrared lens according to claim 1, it is characterised in that: first lens also meet the following conditions:
1.8 < Nd1 <, 2.0,30 < Vd1 < 40；Wherein, the Nd1 is the optical index of the first lens, and the Vd1 is the first lens
Abbe constant；
Second lens also meet the following conditions: 1.5 < Nd2 <, 1.7,30 < Vd2 < 50；Wherein, the Nd2 is second saturating
The optical index of mirror, the Vd2 are the Abbe constant of the second lens；
The third lens also meet the following conditions: 1.9 < Nd3 <, 2.0,30 < Vd3 < 40；Wherein, the Nd3 is that third is saturating
The optical index of mirror, the Vd3 are the Abbe constant of the third lens.
6. a kind of infrared lens according to claim 1, it is characterised in that: further include IR filter plate and protection glass,
The IR filter plate is located at side of the third lens far from object space, and the protection glass is located at the IR filter plate far from object
The side of side.
7. a kind of infrared lens according to claim 1, it is characterised in that: the distortion of the infrared lens is less than 1%.
8. a kind of sweeping robot, which is characterized in that using claim 1 to the described in any item infrared lens of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576735.7U CN209640583U (en) | 2019-04-25 | 2019-04-25 | A kind of infrared lens and sweeping robot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576735.7U CN209640583U (en) | 2019-04-25 | 2019-04-25 | A kind of infrared lens and sweeping robot |
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| Publication Number | Publication Date |
|---|---|
| CN209640583U true CN209640583U (en) | 2019-11-15 |
Family
ID=68497806
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|---|---|---|---|
| CN201920576735.7U Active CN209640583U (en) | 2019-04-25 | 2019-04-25 | A kind of infrared lens and sweeping robot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853699A (en) * | 2020-08-28 | 2020-10-30 | 广东烨嘉光电科技股份有限公司 | Large-aperture three-piece lens optical lens |
| CN114217424A (en) * | 2021-12-22 | 2022-03-22 | 沂普光电(天津)有限公司 | Be applied to optical lens module of robot of sweeping floor |
| CN114942510A (en) * | 2022-02-11 | 2022-08-26 | 深圳市都乐精密制造有限公司 | Ultra-thin wide angle robot lens of sweeping floor |
-
2019
- 2019-04-25 CN CN201920576735.7U patent/CN209640583U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853699A (en) * | 2020-08-28 | 2020-10-30 | 广东烨嘉光电科技股份有限公司 | Large-aperture three-piece lens optical lens |
| CN111853699B (en) * | 2020-08-28 | 2021-02-12 | 广东烨嘉光电科技股份有限公司 | Large-aperture three-piece lens optical lens |
| CN114217424A (en) * | 2021-12-22 | 2022-03-22 | 沂普光电(天津)有限公司 | Be applied to optical lens module of robot of sweeping floor |
| CN114942510A (en) * | 2022-02-11 | 2022-08-26 | 深圳市都乐精密制造有限公司 | Ultra-thin wide angle robot lens of sweeping floor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Building 07, pangjin industrial square, 1801 pangjin Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: SIRTEC INTERNATIONAL (SUZHOU) Co.,Ltd. Address before: 215200 Pangjin Industrial Workshop No. 15, Pangjin Road, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: SIRTEC INTERNATIONAL (SUZHOU) Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |