CN202403204U - Lighting source for machine vision - Google Patents
Lighting source for machine vision Download PDFInfo
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- CN202403204U CN202403204U CN201120538312XU CN201120538312U CN202403204U CN 202403204 U CN202403204 U CN 202403204U CN 201120538312X U CN201120538312X U CN 201120538312XU CN 201120538312 U CN201120538312 U CN 201120538312U CN 202403204 U CN202403204 U CN 202403204U
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- light source
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- low angle
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Abstract
A lighting source for machine vision relates to a lighting source, and is provided with an annular low angle light source, a dome light source, a semi-transmissive and semi-reflective mirror and a supplemental light source, wherein the annular low angle light source, the dome light source, the semi-transmissive and semi-reflective mirror and the supplemental light source are arranged on the same side of a detecting plane; the annular low angle light source is arranged under the dome light source and right above the detection plane; the dome light source is arranged under the semi-transmissive and semi-reflective mirror; the supplemental light source radiates stray light, and directly irradiates on the semi-transmissive and semi-reflective mirror; the annular low angle light source adopts the direct illumination manner so as to illuminate a dark filed and enable the surface of a to-be-detected object to be clearer; the dome light source provides diffuse illumination for a light field, restrains the mirror reflection light on the surface of the object and enables defects of the to-be-detected object to be protruding; and the dome light and low angle light are two kinds of monochromatic light with different wave lengths. The combined light source provided by the utility model can improve the picture quality, protrudes defects of different kinds and improves the detection speed as two types of wave lengths can be reflected on one color picture.
Description
Technical field
The utility model relates to a kind of lighting source, especially relates to a kind of machine vision and uses lighting source.
Background technology
Machine vision replaces human eye to do measurement and judgement with machine exactly; It will be become picture signal by community's Target Transformation through machine vision product; Send special-purpose image processing system to,, be transformed into digitized signal according to information such as pixel distribution and brightness, colors.In the automated production process in modern times, people are widely used in NI Vision Builder for Automated Inspection in fields such as operating condition monitoring, product inspection and quality control.
Chinese patent 201010560449.5 discloses a kind of industrial color vision checkout gear and method; Having adopted the dome light source is light source; The dome light source is inner arranges annular array for polychromatic light more, does not relate in practical application, adopting dome light can produce blackening phenomenon and removing method.Chinese patent 200920055555.0 discloses a kind of machine vision light source, adopts trumpet-shaped circular ring structure, at madial wall annular array three-color LED, does not relate to its light source inhomogeneities in application.
Summary of the invention
The purpose of the utility model is to provide a kind of machine vision to use lighting source.
The utility model is provided with annular low angle light source, dome light source, semi-transparent semi-reflecting lens and light filling light source.
Said annular low angle light source, dome light source, semi-transparent semi-reflecting lens, light filling light source are located at the homonymy of detection plane, and said annular low angle light source is located under the dome light source and directly over the detection plane, said dome light source is located under the semi-transparent semi-reflecting lens; The light filling light source is a diffused light, and direct irradiation is on semi-transparent semi-reflecting lens.
Said semi-transparent semi-reflecting lens can become 45 ° of placements with detection plane, carries out light filling so that introduce the light filling light source, remedies the light that lacks because of dome light source top circular hole.
Said light filling light source can be located at semi-transparent semi-reflecting lens becomes 45 ° of angles with detection plane dead ahead, so that strengthen the light filling effect.
Said annular low angle light source adopts the direct illumination mode, is dark-ground illumination, can make the measured object blemish more clear; The dome light source provides light field diffuse illumination, specular light that can the mortifier surface, outstanding measured object defective; Dome light and low angle light are the monochromatic light of two kinds of different wave lengths.The combined light source that the utility model proposes can improve picture quality, the different types of defective of outstanding demonstration, and the while can be reflected two kinds of wavelength in a colour picture picture has improved detection speed.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the operation principle sketch map of the utility model embodiment.
In Fig. 1 and 2, respectively be labeled as: 1, semi-transparent semi-reflecting lens; 2, dome light source; 3, detection plane; 4, annular low angle light source; 5, light filling light source.
The specific embodiment
Following examples will combine accompanying drawing that the utility model is done detailed explanation:
As illustrated in fig. 1 and 2, the utility model embodiment is provided with annular low angle light source 4, dome light source 2, semi-transparent semi-reflecting lens 1 and light filling light source 5.
Said annular low angle light source 4, dome light source 2, semi-transparent semi-reflecting lens 1, light filling light source 5 are located at the homonymy of detection plane 3; Said annular low angle light source 4 is located under the dome light source 2 and directly over the detection plane 3, said dome light source 2 is located under the semi-transparent semi-reflecting lens 1; Light filling light source 5 is a diffused light, and direct irradiation is on semi-transparent semi-reflecting lens 1.
Said semi-transparent semi-reflecting lens 1 can become 45 ° of placements with detection plane 3, carries out light filling so that introduce light filling light source 5, remedies the light that lacks because of dome light source 2 top circular holes.
Said light filling light source 5 can be located at the dead ahead of semi-transparent semi-reflecting lens 1 and 3 one-tenth 45 ° of angles of detection plane, so that strengthen the light filling effect.
The combined light source that the utility model proposes can improve picture quality, the different types of defective of outstanding demonstration, and the while can be reflected two kinds of wavelength in a colour picture picture has improved detection speed.
Claims (3)
1. a machine vision is used lighting source, it is characterized in that being provided with annular low angle light source, dome light source, semi-transparent semi-reflecting lens and light filling light source;
Said annular low angle light source, dome light source, semi-transparent semi-reflecting lens, light filling light source are located at the homonymy of detection plane, and said annular low angle light source is located under the dome light source and directly over the detection plane, said dome light source is located under the semi-transparent semi-reflecting lens; The light filling light source is a diffused light, and direct irradiation is on semi-transparent semi-reflecting lens.
2. a kind of machine vision as claimed in claim 1 is used lighting source, it is characterized in that said semi-transparent semi-reflecting lens becomes 45 ° of placements with detection plane.
3. a kind of machine vision as claimed in claim 1 is used lighting source, it is characterized in that said light filling light source is located at semi-transparent semi-reflecting lens becomes 45 ° of angles with detection plane dead ahead.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201120538312XU CN202403204U (en) | 2011-12-20 | 2011-12-20 | Lighting source for machine vision |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201120538312XU CN202403204U (en) | 2011-12-20 | 2011-12-20 | Lighting source for machine vision |
Publications (1)
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CN202403204U true CN202403204U (en) | 2012-08-29 |
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CN201120538312XU Expired - Fee Related CN202403204U (en) | 2011-12-20 | 2011-12-20 | Lighting source for machine vision |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104585985A (en) * | 2013-10-30 | 2015-05-06 | 梧州市旺发新工艺品有限公司 | Illumination device for gem processing |
CN105847640A (en) * | 2016-03-18 | 2016-08-10 | 上海众思电子设备有限公司 | Light source for multi-linear CCD camera |
CN106248671A (en) * | 2016-03-23 | 2016-12-21 | 上海众思电子设备有限公司 | Many line-scan digital cameras online one side detection device |
CN106248679A (en) * | 2016-04-01 | 2016-12-21 | 上海众思电子设备有限公司 | The online double-side detecting device of many line-scan digital cameras |
CN106323987A (en) * | 2016-09-30 | 2017-01-11 | 厦门威芯泰科技有限公司 | Lighting source for detecting high-reflectivity surface defects |
CN106353340A (en) * | 2016-10-18 | 2017-01-25 | 厦门威芯泰科技有限公司 | Surface defect detection method for rod-like high-reflectance part |
CN109187584A (en) * | 2018-08-08 | 2019-01-11 | 华南理工大学 | Flexible printed circuit defect detecting system and method under a kind of mixing scene |
CN110286129A (en) * | 2019-07-12 | 2019-09-27 | 创新奇智(广州)科技有限公司 | Lighting device for magnetic shoe detection and the detection system for magnetic shoe detection |
CN111458294A (en) * | 2019-01-18 | 2020-07-28 | 第一实业视检系统股份有限公司 | Inspection apparatus |
CN111896551A (en) * | 2020-08-20 | 2020-11-06 | 杭州乔戈里科技有限公司 | Multi-light-source photographing device of appearance detection system |
CN113720858A (en) * | 2021-08-31 | 2021-11-30 | 北京航空航天大学 | Steel ball surface defect detection method based on dome light source and dark field thereof |
-
2011
- 2011-12-20 CN CN201120538312XU patent/CN202403204U/en not_active Expired - Fee Related
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104585985A (en) * | 2013-10-30 | 2015-05-06 | 梧州市旺发新工艺品有限公司 | Illumination device for gem processing |
CN105847640A (en) * | 2016-03-18 | 2016-08-10 | 上海众思电子设备有限公司 | Light source for multi-linear CCD camera |
CN106248671A (en) * | 2016-03-23 | 2016-12-21 | 上海众思电子设备有限公司 | Many line-scan digital cameras online one side detection device |
CN106248679A (en) * | 2016-04-01 | 2016-12-21 | 上海众思电子设备有限公司 | The online double-side detecting device of many line-scan digital cameras |
CN106323987A (en) * | 2016-09-30 | 2017-01-11 | 厦门威芯泰科技有限公司 | Lighting source for detecting high-reflectivity surface defects |
CN106353340B (en) * | 2016-10-18 | 2019-07-16 | 厦门威芯泰科技有限公司 | A kind of rodlike high reflectance surface defects of parts detection method |
CN106353340A (en) * | 2016-10-18 | 2017-01-25 | 厦门威芯泰科技有限公司 | Surface defect detection method for rod-like high-reflectance part |
CN109187584A (en) * | 2018-08-08 | 2019-01-11 | 华南理工大学 | Flexible printed circuit defect detecting system and method under a kind of mixing scene |
CN111458294A (en) * | 2019-01-18 | 2020-07-28 | 第一实业视检系统股份有限公司 | Inspection apparatus |
CN110286129A (en) * | 2019-07-12 | 2019-09-27 | 创新奇智(广州)科技有限公司 | Lighting device for magnetic shoe detection and the detection system for magnetic shoe detection |
CN111896551A (en) * | 2020-08-20 | 2020-11-06 | 杭州乔戈里科技有限公司 | Multi-light-source photographing device of appearance detection system |
CN113720858A (en) * | 2021-08-31 | 2021-11-30 | 北京航空航天大学 | Steel ball surface defect detection method based on dome light source and dark field thereof |
CN113720858B (en) * | 2021-08-31 | 2023-03-31 | 北京航空航天大学 | Steel ball surface defect detection method based on dome light source and dark field thereof |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20181220 |