CN202403204U - Lighting source for machine vision - Google Patents

Lighting source for machine vision Download PDF

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Publication number
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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CN
China
Prior art keywords
light source
semi
dome
low angle
light
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Expired - Fee Related
Application number
CN201120538312XU
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Chinese (zh)
Inventor
王磊
张凤玲
冯彬
江小峰
彭胤
丁鹏飞
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Xiamen University
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Xiamen University
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Publication date
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Priority to CN201120538312XU priority Critical patent/CN202403204U/en
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Publication of CN202403204U publication Critical patent/CN202403204U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of machine vision is used lighting source
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.
CN201120538312XU 2011-12-20 2011-12-20 Lighting source for machine vision Expired - Fee Related CN202403204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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
CN201120538312XU CN202403204U (en) 2011-12-20 2011-12-20 Lighting source for machine vision

Publications (1)

Publication Number Publication Date
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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CN (1) CN202403204U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
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

Cited By (13)

* Cited by examiner, † Cited by third party
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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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