CN207584477U - A kind of LED annular light sources for vision-based detection illumination - Google Patents
A kind of LED annular light sources for vision-based detection illumination Download PDFInfo
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- CN207584477U CN207584477U CN201721243297.XU CN201721243297U CN207584477U CN 207584477 U CN207584477 U CN 207584477U CN 201721243297 U CN201721243297 U CN 201721243297U CN 207584477 U CN207584477 U CN 207584477U
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Abstract
The utility model discloses a kind of LED annular light sources for vision-based detection illumination, belongs to Machine Vision Detection field, and including shell, outer shroud luminosity scale, middle ring luminosity scale, inner ring luminosity scale, the shell is the cylinder of top surface opening, and the bottom surface of shell offers through-hole；The inner ring luminosity scale is mounted on enclosure bottom；The lower edge of the outer shroud luminosity scale is connect with the outer ledge of inner ring luminosity scale；The outer ledge of the middle ring luminosity scale is connect with outer shroud luminosity scale, and the inside edge of middle ring luminosity scale is connect with inner ring luminosity scale, there is angle a between middle ring luminosity scale and inner ring luminosity scale.The utility model collocation elevating mechanism, which is freely lifted, can provide flexible low angle polishing effect；It is arranged using red, green, blue, Bai Sise LED by certain way, is divided into the control of 3 ring, 8th area, it is more flexible to carry out colour mixture by adjusting the LED of the different colours of different zones, while increase the use scope of light source.
Description
Technical field
The utility model is related to a kind of machine vision annular light source, more particularly to a kind of LED for vision-based detection illumination
Annular light source.
Background technology
The core of NI Vision Builder for Automated Inspection is Image Acquisition and processing.Among all information derive from image, image is in itself
Quality it is extremely crucial to entire vision system.And light source then be ensure video equipment vision system picture quality it is important because
Element, it directly affects the quality and at least 30% application effect of input data.Nowadays image size is measured in industry, ring light
Source cannot meet the need that the finer and smoother variation of polishing angle is provided according to different test products using fixed several angle polishings
It asks, often realizes polishing for detailed programs design specialized light source, there are the drawbacks such as utilization rate is low, flexibility is poor, it is impossible to meet
Nowadays to intelligence, efficiency and precision increasingly higher demands.
In addition, light source on the market also tends to mostly be monochromatic source or the simple combination of RGB color, and possess for certain
The product of complicated color, which generally requires more to become, dissolves different-colour illumination, could more preferably highlight the characteristic profile pair on image
Degree of ratio.
Utility model content
To solve the deficiencies in the prior art, the utility model is intended to provide a kind of LED annulars for vision-based detection illumination
Can computer program-control light source, collocation elevating mechanism is freely lifted and can provide flexible low angle polishing effect.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：
A kind of LED annular light sources for vision-based detection illumination disclosed in the utility model, shine including shell, outer shroud
Disk, middle ring luminosity scale, inner ring luminosity scale, the shell are the cylinder of top surface opening, and the bottom surface of shell offers through-hole；In described
Ring luminosity scale is mounted on enclosure bottom；The lower edge of the outer shroud luminosity scale is connect with the outer ledge of inner ring luminosity scale；In described
The outer ledge of ring luminosity scale is connect with outer shroud luminosity scale, and the inside edge of middle ring luminosity scale is connect with inner ring luminosity scale, middle ring
There is angle a between luminosity scale and inner ring luminosity scale.Outer shroud luminosity scale, middle ring luminosity scale, inner ring luminosity scale are printed circuit board,
LED on printed circuit board is installed, forms luminosity scale.
Outer shroud luminosity scale, middle ring luminosity scale, inner ring luminosity scale are arranged according to certain sequence and angle, give product polishing
When, when the elevating mechanism of light source drives light source to move up and down, the irradiating angle of outer shroud luminosity scale and middle ring luminosity scale also can be with
Variation (0 to 90 degree), so as to find a most suitable polishing angle, then coordinate accordingly based on surveying product wherein
The adjusting of the brightness value in area and colour mixture color matching operation, generate that contrast is more preferable, more obvious image.
Preferably, the outer shroud luminosity scale is vertical with inner ring luminosity scale, and the angle a is 45 °.Angle a is 45 °, middle ring
The angle of luminosity scale and outer shroud luminosity scale is similarly 45 °, and illumination is evenly.
Preferably, the side of the shell is equipped with fan hole, and the fan hole is equipped with fan；The outer shroud luminosity scale,
Middle ring luminosity scale, inner ring luminosity scale form the annular airflow road that section is triangle；Ventilation is provided on the outer shroud luminosity scale
Hole, the air vent are connected with annular airflow road.Fan accelerates air-flow and exchanges to cool down to light source；Shell and outer shroud luminosity scale
Between there is gap to facilitate air-flow by taking away heat, while avoid being damaged to hair when cage connection elevating mechanism or other objects
Tabula rasa；Since flow channel and outer shroud blowhole and middle ring venthole are set, fan cold air can be flowed through this annular space
And flowed out from middle ring venthole, it can effectively take away the heat that each ring LED is generated, it is ensured that LED will not cross early ageing due to high temperature
Always.
Further, the outer shroud luminosity scale top is equipped with three row LED, and the middle ring luminosity scale is equipped with three row LED,
The inner ring luminosity scale is equipped with two circle LED, can multi-angle uniformly emit light, carry out multi-angle polishing.
Further, the LED includes red, green, blue, white four kinds of LED, and the LED of four kinds of colors is repeated in
Arrangement.More flexible colour mixture light can be provided to the product of complicated color, so as to more preferably distinguish the acquisition figure of needs
As the part of feature.
Preferably, the outer shroud luminosity scale, which is often arranged, is equipped with 128 LED, and the middle ring luminosity scale, which is often arranged, is equipped with 96
LED, the inner ring luminosity scale, which often encloses, is equipped with 64 LED.It is arranged using red, green, blue, Bai Sise LED by certain way, it is this
Arrangement mode can uniformly, effectively synthesize required colour temperature spectrum；It is divided into 3 ring, 8th area control totally 24 blocks, each four kinds of face of block
Color can individually adjust brightness value, and gray scale is controllable, and the more flexible LED by adjusting the different colours of different zones is mixed
Color, while increase the use scope of light source.
Preferably, the color of each column LED is identical on the outer shroud luminosity scale, the face of each column LED on the middle ring luminosity scale
Color is identical, and two LED colors of arranged radially are identical on the inner ring luminosity scale, facilitates program-controlled, while can be more advantageous to opening up
Reveal color effect.
Further, the LED is connect with controller.The printing of outer shroud luminosity scale, middle ring luminosity scale, inner ring luminosity scale
Circuit board is linked together by PCB ingehious design solder joints, easy to assembly to save space；Inner ring luminosity scale contains all areas
Block and the cyclelog of color LED luminance control；Inner ring luminosity scale is also welded with connector, realizes and host controller or meter
Calculation machine connects.
Further, the bottom surface of the shell offers the connecting hole being connect with elevating mechanism, convenient to connect with elevating mechanism
It connects, so as to fulfill the elevating control of light source.
Preferably, the extension mounting hole for installing laser designator is offered on the inner ring luminosity scale, facilitates progress
Function Extension.
The utility model has the advantages that：
1st, the outer shroud luminosity scale of the utility model, middle ring luminosity scale, inner ring luminosity scale are carried out according to certain sequence and angle
Arrangement, during to product polishing, when the elevating mechanism of light source drives light source to move up and down, the light being radiated on test product enters
Firing angle changes from 0-90 degree；Coordinate the adjusting of the brightness value of respective block and colour mixture color matching operation again, so as to according to test product
Feature needs to find a most suitable polishing angle, brightness and colour temperature, the image that generation contrast is more preferable, feature highlights；
2nd, fan can cool down to light source；Shell has gap to facilitate gas between outer shroud luminosity scale, inner ring luminosity scale respectively
Stream is by taking away heat, while avoid being damaged to luminescent screen when cage connection elevating mechanism or other objects；
3rd, since the angle of middle ring luminosity scale is set, outer shroud luminosity scale, middle ring luminosity scale, inner ring luminosity scale form one
The annular space of closing, forms the annular airflow road of triangular cross-section, and air vent can allow air-flow to pass through this annular space, energy
Enough heats for effectively taking away LED generations；
4th, the utility model is arranged using red, green, blue, Bai Sise LED by certain way, is divided into the control of 3 ring, 8th area, this
Arrangement mode can uniformly, effectively synthesize required colour temperature spectrum；Increase the use scope of light source；
5th, the setting of connecting hole facilitates the utility model to be connect with elevating mechanism, so as to fulfill the elevating control of light source.Through
The light via through holes of test product reflection enter camera lens and subsequent CCD vision systems.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the exploded perspective view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the vertical view of Fig. 1；
Fig. 6 is partial view in Fig. 5；
Fig. 7 is the product schematic diagram with specific profile；
Fig. 8 is the detection illuminating effect schematic diagram one of the utility model；
Fig. 9 is the detection illuminating effect schematic diagram two of the utility model；
Figure 10 is the detection illuminating effect schematic diagram three of the utility model；
In figure：Shell 1, outer shroud luminosity scale 2, middle ring luminosity scale 3, inner ring luminosity scale 4, fan 5, product 6, camera lens 7, through-hole
11st, the outside of connecting hole 12, air vent 21, extension mounting hole 41, the corner angle side 61 of product, the bottom chamfer 62 of product, product
Chamfering 63；
The subregion auxiliary line of 8- not physical presence；
The solder joint of 9-15 needle connectors；
B- White LEDs；
G- blue leds；
R- green LEDs；
W- red LEDs.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in figures 1 to 6, a kind of LED annular light sources for vision-based detection illumination disclosed in the utility model, including outer
Shell 1, outer shroud luminosity scale 2, middle ring luminosity scale 3, inner ring luminosity scale 4, shell 1 are the cylinder of top surface opening, and the bottom surface of shell 1 opens up
There is through-hole 11；Inner ring luminosity scale 4 is mounted on 1 bottom surface of shell；The lower edge of outer shroud luminosity scale 2 and the outer ledge of inner ring luminosity scale 4
Connection；The outer ledge of middle ring luminosity scale 3 is connect with outer shroud luminosity scale 2, inside edge and the inner ring luminosity scale of middle ring luminosity scale 3
4 connections, there is angle a between middle ring luminosity scale 3 and inner ring luminosity scale 4.Outer shroud luminosity scale 2, middle ring luminosity scale 3, inner ring luminosity scale 4
It is printed circuit board, LED is installed on printed circuit board, forms luminosity scale.
Outer shroud luminosity scale 2, middle ring luminosity scale 3, inner ring luminosity scale 4 are arranged according to certain sequence and angle, to product
During polishing, when the elevating mechanism of light source drives light source to move up and down, the irradiating angle of outer shroud luminosity scale 2 and middle ring luminosity scale 3
It also can be with variation (0 to 90 degree), so as to find a most suitable polishing angle, then match based on surveying product wherein
The adjusting of the brightness value of respective area and colour mixture color matching operation are closed, generates that contrast is more preferable, more obvious image.
In order to enable illumination is evenly, outer shroud luminosity scale 2 is vertical with inner ring luminosity scale 4, and angle a is 45 °.Angle a is
45 °, middle ring luminosity scale 3 and the angle of outer shroud luminosity scale 2 are similarly 45 °, and illumination is evenly.
For effective temperature-reducing, the side of shell 1 is equipped with fan hole, and fan hole is equipped with fan 5；Outer shroud luminosity scale 2, middle ring
Luminosity scale 3, inner ring luminosity scale 4 form the annular airflow road that section is triangle；Air vent 21 is provided on outer shroud luminosity scale 2,
Air vent 21 is connected with annular airflow road.Fan accelerates air-flow and exchanges to cool down to light source；Between shell and outer shroud luminosity scale
There is gap to facilitate air-flow by taking away heat, while avoid being damaged to when cage connection elevating mechanism or other objects luminous
Plate；Since flow channel and outer shroud blowhole and middle ring venthole are set, fan cold air can be flowed through this annular space simultaneously
It is flowed out from middle ring venthole, can effectively take away the heat that each ring LED is generated, it is ensured that LED will not cross presenility due to high temperature.
In order to carry out multi-angle polishing, 2 top of outer shroud luminosity scale is equipped with three row LED, and middle ring luminosity scale 3 is equipped with three rows
LED, inner ring luminosity scale 4 are equipped with two circle LED, can multi-angle uniformly emit light.
In order to provide flexible colour mixture light, LED includes red, green, blue, white four kinds of LED, four kinds of colors
LED is repeated in arranging.More flexible colour mixture light can be provided to the product of complicated color, be needed so as to more preferably distinguish
The part of acquisition characteristics of image wanted.
Specifically, outer shroud luminosity scale 2, which is often arranged, is equipped with 128 LED, middle ring luminosity scale 3 is often arranged and is equipped with 96 LED, interior
Ring luminosity scale 4 often encloses and is equipped with 64 LED.It is arranged using red, green, blue, Bai Sise LED by certain way, this arrangement mode
Colour temperature spectrum needed for can uniformly, effectively synthesizing；It is divided into 3 ring, 8th area control totally 24 blocks, each four kinds of colors of block can be single
Brightness value is solely adjusted, gray scale is controllable, and the more flexible LED by adjusting the different colours of different zones carries out colour mixture, simultaneously
The use scope of light source is increased, as shown in Figure 5,6.
Specifically, the color of each column LED is identical on outer shroud luminosity scale 2, the color of each column LED is identical on middle ring luminosity scale 3,
Two LED colors of arranged radially are identical on inner ring luminosity scale 4, facilitate program-controlled, while can be more advantageous to showing colored effect
Fruit.
In order to control each LED, LED is connect with controller.Outer shroud luminosity scale, middle ring luminosity scale, inner ring
The printed circuit board of luminosity scale is linked together by PCB ingehious design solder joints, easy to assembly to save space；Inner ring luminosity scale
Contain all blocks and the cyclelog of color LED luminance control；Inner ring luminosity scale is also welded with connector, realize with it is upper
Level controller or computer connection.
In order to facilitate connection, the bottom surface of shell 1 offers the connecting hole 12 being connect with elevating mechanism, convenient and elevating mechanism
Connection, so as to fulfill the elevating control of light source.
In order to facilitate expanded function, the extension mounting hole 41 for installing laser designator is offered on inner ring luminosity scale 4.
As shown in figure 8, the light that the LED on middle ring luminosity scale 3 is sent out is impinged upon on product 6, diffusing reflection light is straight up
Into camera lens 7, that root line of demarcation between the dash area and the right area of " dark " here larger " bright " is exactly that we need
The corner angle side 61 for the product to be captured, in this way from bright to secretly carrying out grabbing side, contrast is apparent, and shaded area is big, image software
It is high to seek side tool crawl success rate, convenient for programming automatic measurement.
As shown in figure 9, the light that the LED on outer shroud luminosity scale 2 is sent out is impinged upon on product 6, diffusing reflection light is straight up
Into camera lens 7, the part of " bright " here is exactly the region of the bottom chamfer 62 of product, and the line of demarcation from " dark " to " bright " is exactly
The profile on the side of bottom chamfer.
As shown in Figure 10, light source is moved by elevating mechanism, it is lower to obtain by reducing light source to the height of product
Irradiating angle；The light that LED on outer shroud luminosity scale 2 is sent out is impinged upon on product 6, and diffusing reflection light enters camera lens 7 straight up,
The outer chamfered 63 of product, by polishing, the part of the image " bright " on the right is the part of the outer chamfered 63 of product, from " dark "
It is exactly the profile of chamfering to bright line of demarcation.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding changes and deformation, but these phases according to the utility model
The change and deformation answered should all belong to the scope of the claims appended by the utility model.
Claims (9)
1. a kind of LED annular light sources for vision-based detection illumination, it is characterised in that：Including shell (1), outer shroud luminosity scale (2),
Middle ring luminosity scale (3), inner ring luminosity scale (4), the shell (1) are the cylinder of top surface opening, and the bottom surface of shell (1) offers logical
Hole (11)；The inner ring luminosity scale (4) is mounted on shell (1) bottom surface；The lower edge of the outer shroud luminosity scale (2) and inner ring luminosity scale
(4) outer ledge connection；The outer ledge of the middle ring luminosity scale (3) is connect with outer shroud luminosity scale (2), middle ring luminosity scale
(3) inside edge is connect with inner ring luminosity scale (4), has angle a between middle ring luminosity scale (3) and inner ring luminosity scale (4)；It is described
The bottom surface of shell (1) offers the connecting hole (12) being connect with elevating mechanism.
2. a kind of LED annular light sources for vision-based detection illumination according to claim 1, it is characterised in that：It is described outer
Ring luminosity scale (2) is vertical with inner ring luminosity scale (4), and the angle a is 45 °.
3. a kind of LED annular light sources for vision-based detection illumination according to claim 1, it is characterised in that：It is described outer
The side of shell (1) is equipped with fan hole, and the fan hole is equipped with fan (5)；The outer shroud luminosity scale (2), middle ring luminosity scale
(3), inner ring luminosity scale (4) forms the annular airflow road that section is triangle；Air vent is provided on the outer shroud luminosity scale (2)
(21), the air vent (21) connects with annular airflow road.
4. a kind of LED annular light sources for vision-based detection illumination according to claim 1, it is characterised in that：It is described outer
Ring luminosity scale (2) top is equipped with three row LED, and the middle ring luminosity scale (3) is equipped with three row LED, the inner ring luminosity scale (4)
Two circle LED are installed.
5. a kind of LED annular light sources for vision-based detection illumination according to claim 4, it is characterised in that：It is described outer
LED on ring luminosity scale (2), middle ring luminosity scale (3) and inner ring luminosity scale (4) includes red, green, blue, four kinds of white
LED, the LED of four kinds of colors are repeated in arranging.
6. a kind of LED annular light sources for vision-based detection illumination according to claim 5, it is characterised in that：It is described outer
Ring luminosity scale (2) is often arranged and is equipped with 128 LED, and the middle ring luminosity scale (3) often arranges and is equipped with 96 LED, the inner ring hair
CD (4) often encloses and is equipped with 64 LED.
7. a kind of LED annular light sources for vision-based detection illumination according to claim 6, it is characterised in that：It is described outer
The color of each column LED is identical on ring luminosity scale (2), and the color of each column LED is identical on the middle ring luminosity scale (3), the inner ring
Two LED colors of arranged radially are identical on luminosity scale (4).
8. a kind of LED annular light sources for vision-based detection illumination according to claim 4-7 any one, feature exist
In：LED on the outer shroud luminosity scale (2), middle ring luminosity scale (3) and inner ring luminosity scale (4) is connect with controller.
9. a kind of LED annular light sources for vision-based detection illumination according to claim 1, it is characterised in that：In described
The extension mounting hole (41) for installing laser designator is offered on ring luminosity scale (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243297.XU CN207584477U (en) | 2017-09-26 | 2017-09-26 | A kind of LED annular light sources for vision-based detection illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243297.XU CN207584477U (en) | 2017-09-26 | 2017-09-26 | A kind of LED annular light sources for vision-based detection illumination |
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| CN207584477U true CN207584477U (en) | 2018-07-06 |
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ID=62727689
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| CN201721243297.XU Active CN207584477U (en) | 2017-09-26 | 2017-09-26 | A kind of LED annular light sources for vision-based detection illumination |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514576A (en) * | 2017-09-26 | 2017-12-26 | 李劲松 | A kind of LED annular light sources for vision-based detection illumination |
| CN110805868A (en) * | 2018-08-06 | 2020-02-18 | 佛山市中菱智控科技有限公司 | Light source for production and detection of pop-top can |
| CN114719233A (en) * | 2022-04-14 | 2022-07-08 | 四维视觉技术(广东)有限公司 | Visual light source capable of emitting user-defined illumination and system thereof |
-
2017
- 2017-09-26 CN CN201721243297.XU patent/CN207584477U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514576A (en) * | 2017-09-26 | 2017-12-26 | 李劲松 | A kind of LED annular light sources for vision-based detection illumination |
| CN110805868A (en) * | 2018-08-06 | 2020-02-18 | 佛山市中菱智控科技有限公司 | Light source for production and detection of pop-top can |
| CN114719233A (en) * | 2022-04-14 | 2022-07-08 | 四维视觉技术(广东)有限公司 | Visual light source capable of emitting user-defined illumination and system thereof |
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