CN207036673U - A kind of window structure for preventing light source from reflecting being used in vision-based detection module - Google Patents
A kind of window structure for preventing light source from reflecting being used in vision-based detection module Download PDFInfo
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- CN207036673U CN207036673U CN201720686043.9U CN201720686043U CN207036673U CN 207036673 U CN207036673 U CN 207036673U CN 201720686043 U CN201720686043 U CN 201720686043U CN 207036673 U CN207036673 U CN 207036673U
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- light source
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- window structure
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Abstract
The utility model discloses a kind of window structure for preventing light source from reflecting being used in vision-based detection module; the vision-based detection module includes the camera and its camera lens, light source shot to detected material; the camera is provided with sealing protective with source outer; the window structure is arranged on sealing protective using light transmission piece, for the light through light source and the form as camera lens；The light transmission piece has certain angle of inclination with light source direction of illumination.The utility model eliminates window surface to influence of the source light reflection to detection, and image quality is better than the special optical mirror slip of the saturating plated film of height using high cost；The utility model structure realizes, easily realization low with manufacturing cost；Inclination window structure of the present utility model is more prone to allow detection module to be integrated into existing producing line, it is not easy to and other parts produce interference in producing line.
Description
Technical field
Vision-based detection is the utility model is related to, it is more particularly to a kind of to be used to prevent what light source from reflecting in vision-based detection module
Window structure.
Background technology
Visual detection equipment extensive use on automatic production line.Vision-based detection module is by camera, camera lens, light source and electricity
Sub- component composition.The production line of many industries requires that online detection instrument needs waterproof and prevented due to the particularity of production environment
The function of dirt, such as beverage filling production lines.It is usually the case that camera, light source and camera lens are to be encapsulated in a sealing
Waterproof sealing protective cover in.Seal have the forms of a glass or other transparent materials be used for through light source light and
Form as camera.When light source and camera are required for being encapsulated in a sealing sealing protective, the glass during detecting
A part of light of glass window surface reflection source influences the quality of original image, and then influence final detection effect to camera
Fruit.Especially with high intensity light source when, the reflection effect of window surface allows the tested object image of intake to have obvious light source
Image, or even Detection task can not be realized.
In the prior art, vision-based detection module and the relative position of measured object are as shown in figure 1, camera 101, camera lens 102, light
Source 103 is in the same side of detected material 104.Due to the limitation of production environment, for exempt from camera, camera lens and other components not by
All parts are sealed in sealing protective by the influence of environment, it is necessary to design a sealing protective 105.And in order that light
The light in source can reach measured object and camera it can be seen that needing out a glass before measured object, sealing protective and measured object
Glass（Can also be other transparent materials）Window structure 106.In detection process, light source luminescent.Most of light passes through glass
Forms reach object to be detected surface, but some light is reflected by the surface of glass forms.So form one
The individual superposition being imaged twice, there is the imaging of a light source itself in addition to the imaging of detected material.
As shown in figure 1, source emissioning light line 1 reaches transparent forms, most of light passes through transparent form window structure
Testee surface is projected, camera is returned to finally by the first reflected light 3.The reflectivity of general optical glass arrives 10%
Between 20%, this part light reflects back into camera by glass surface, forms the second reflected light 2.So in obtained measured object figure
There is the imaging of obvious light source on picture, influence later image procossing.
Current solution method has two kinds, and a kind of is optical glass of the forms by using the saturating plated film of height of specially treated.
In addition to cost greatly improves, best reflectivity of the Film Coating Antireflection sheet glass still more than 2%, in detection at present
The reflection effect of conventional high-brightness LED light source still can influence picture quality.Diffusing reflection plate is added before light source, is being taken the photograph
The interference that cloud form also occurs in image is taken, still can finally influence the precision and stability of detection.Second scheme is exactly to change
The position of changing light takes out light source from sealing protective, individually makees water proof and dust proof processing to light source, as shown in Fig. 2
This solution can increase the volume and manufacturing cost of module.And be not suitable for needing camera be in light source and measured object it
Between situation.
Utility model content
The purpose of the utility model is：A kind of window structure for preventing light source from reflecting being used in vision-based detection module is provided,
So that window surface does not influence image quality on the mirror-reflection effect for being sealed in sealing protective inner light source light, improve original
The quality of image, improve the precision and stability of on-line checking.
The technical solution of the utility model is：
It is a kind of be used for vision-based detection module in prevent light source reflect window structure, the vision-based detection module include pair
Camera and its camera lens that detected material is shot, light source, the camera are provided with sealing protective, the forms with source outer
Structure is arranged on sealing protective using light transmission piece, for the light through light source and the form as camera lens；It is described
Light transmission piece has certain angle of inclination with light source direction of illumination.
Preferably, the light source, camera and measured object are located on same axis, the light transmission piece and light source incidence
The angle of light is more than 100 °.
Preferably, the light source and camera be not on an axis, and the angle of inclination of light transmission piece is according to light source and camera
Relative position make adjustment.
Preferably, the light transmission piece uses glass.
Preferably, the one side that the sealing protection is covered in face of detected material is designed to have with light source direction of illumination certain
Angle of inclination, the light transmission piece be arranged on the face on.
Preferably, the vision-based detection module is located at directly over detected material, and the camera lens and light source direction of illumination of camera are equal
Straight down.
The utility model has the advantages that：
Compared with prior art, the invention has advantages below：
1）The utility model eliminates window surface to influence of the source light reflection to detection, and image quality is better than use
The special optical mirror slip of the saturating plated film of height of high cost；
2）The utility model structure realizes, easily realization low with manufacturing cost；
3）Inclination window structure of the present utility model is more prone to allow detection module to be integrated into existing producing line, it is not easy to
Interference is produced with other parts in producing line.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Fig. 1 is the signal of vision-based detection module and the reflection of the relative position and its source light of measured object in the prior art
Figure；
Fig. 2 is the structural representation that light source is placed in outside sealing protective in the prior art；
Fig. 3 is signal of the utility model using vision-based detection module and its source light reflection for tilting window structure
Figure.
Embodiment
The utility model is by changing window structure, only with common sheet glass as window material with regard to that can eliminate glass
Influence of the surface reflection to detection image intake, not only cost is low easily realizes, and has wide applicability.
Principle of the present utility model is described as shown in figure 3, the vision-based detection module is located at directly over detected material 104
Vision-based detection module includes the camera 101 and its camera lens 102, light source 103 shot to detected material 104, the camera lens of camera
With light source direction of illumination straight down.The camera is provided with sealing protective 105 with source outer, the sealing protective
Lower design of front cover has certain angle of inclination into light source direction of illumination, and the window structure 106 is set using glass transmission piece
It is placed under the inclination of sealing protective on front cover, also there is certain angle of inclination with light source direction of illumination, for through light source
Light and form as camera lens.
Form region on sealing protective is made an inclined-plane by the utility model, source emissioning light line straight down
1 reaches glass transmission piece surface, and most light reaches measured object surface through sheet glass, then by the first reflected light 3
Return to camera.And some light is reflected according to the difference of glass material reflectivity by glass sheet surface, the second reflection is formed
Light 2.Second reflected light 2 is in certain angle due to window surface and light incident direction so that this part light will not former road return
Return to the sensitive component CCD of camera.By such a window structure, can greatly reduce because window surface reflected light
The light in source and influence intake picture quality.
When light source and camera and testee are on same axis, forms gradient only needs 15 degree or so with regard to energy
Enough obvious influences improved because windowpane body surface surface launching is brought, typically require that the angle of incident light and forms is more than 100
Degree.The effect of the bigger elimination reflection of angle tilt is better.When light source and camera be not on an axis, or using unrestrained anti-
Light source is penetrated, the angle of inclination of forms can make adjustment according to the relative position of light source and camera, to reach optimal effect.
This window structure with angle of inclination of the utility model and sealing protective design are it is also an advantage that be exactly more
Add and be easily mounted on existing production line, can prevent the miscellaneous equipment part in producing line and sealing protective from interfering generation to rub
Wipe and collide.
The utility model seal window structure is applied to PET bottle mouth, the vision inspection of embryo mouth and pop can tank mouth
In measurement equipment.Test result shows that the window structure, which eliminates intake image in ordinary construction, to be had the Imaging of light source and adopt
With the image cloud form effect of special high coated optics eyeglass thoroughly, the original quality of detection image is improved, makes image procossing mistake
Journey is simpler and stably.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
People can understand content of the present utility model and implement according to this, the scope of protection of the utility model can not be limited with this.It is all
The modification done according to the Spirit Essence of the utility model main technical schemes, it should all cover in the scope of protection of the utility model
Within.
Claims (6)
1. a kind of window structure for preventing light source from reflecting being used in vision-based detection module, the vision-based detection module are included to quilt
Camera and its camera lens that detectable substance is shot, light source, the camera are provided with sealing protective, the forms knot with source outer
Structure is arranged on sealing protective using light transmission piece, for the light through light source and the form as camera lens；Its feature
It is：The light transmission piece has certain angle of inclination with light source direction of illumination.
2. the window structure according to claim 1 for preventing light source from reflecting, it is characterised in that：The light source, camera and
Measured object is located on same axis, and the light transmission piece and the angle of light source incidence light are more than 100 °.
3. the window structure according to claim 2 for preventing light source from reflecting, it is characterised in that：The light source and camera do not exist
On one axis, the angle of inclination of light transmission piece is made adjustment according to the relative position of light source and camera.
4. the window structure for preventing light source reflection according to claim 1-3 any one, it is characterised in that：The printing opacity
Piece uses glass.
5. the window structure according to claim 1 for preventing light source from reflecting, it is characterised in that：The sealing protection covers on face
Having certain angle of inclination with light source direction of illumination is designed to the one side of detected material, the light transmission piece is arranged on the face
On.
6. the window structure according to claim 1 for preventing light source from reflecting, it is characterised in that：The vision-based detection module position
Directly over detected material, the camera lens and light source direction of illumination of camera are straight down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720686043.9U CN207036673U (en) | 2017-06-14 | 2017-06-14 | A kind of window structure for preventing light source from reflecting being used in vision-based detection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720686043.9U CN207036673U (en) | 2017-06-14 | 2017-06-14 | A kind of window structure for preventing light source from reflecting being used in vision-based detection module |
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| Publication Number | Publication Date |
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| CN207036673U true CN207036673U (en) | 2018-02-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115266735A (en) * | 2022-09-29 | 2022-11-01 | 南京原觉信息科技有限公司 | Metal plate surface defect detection system and detection method thereof |
-
2017
- 2017-06-14 CN CN201720686043.9U patent/CN207036673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115266735A (en) * | 2022-09-29 | 2022-11-01 | 南京原觉信息科技有限公司 | Metal plate surface defect detection system and detection method thereof |
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