CN110044926A - A kind of lens defect detection device - Google Patents
A kind of lens defect detection device Download PDFInfo
- Publication number
- CN110044926A CN110044926A CN201910325106.1A CN201910325106A CN110044926A CN 110044926 A CN110044926 A CN 110044926A CN 201910325106 A CN201910325106 A CN 201910325106A CN 110044926 A CN110044926 A CN 110044926A
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- China
- Prior art keywords
- lens
- camera
- sliding rail
- transparent plate
- fixed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
- G01N2021/9583—Lenses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/062—LED's
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention relates to a kind of lens defect detection device, including camera and camera lens, display screens, annular light source, transparent plate, electricity driving displacement platform, electric lifting platform and several parts of electric sliding rail, wherein, camera connection lens are fixed on electricity driving displacement platform, can be moved up and down with electricity driving displacement platform, for adjusting viewing field of camera size, it is fixed on immediately below camera lens, for assisting multi-angle polishing to carry out shooting measured lens；Transparent plate is fixedly connected on electric sliding rail, for placing lens to be checked, carries transparent plate movement disengaging detection device by electric sliding rail；Display screen is fixed on electric lifting platform, for projecting black and white strip, is placed in the lower section of transparent plate, is driven and moved up and down by electric lifting platform, project on measured lens.
Description
Technical field
The present invention relates to a kind of lens defect detection devices.
Background technique
Lens are a kind of common optical devices, however, in lens manufacturing process, it is difficult due to the limitation of equipment and technology
Exempt to generate all kinds of defects, influences its final optical property.Therefore, before lens formally come into operation, need to introduce detection work
Sequence influences the final working performance of equipment to avoid defect lens, causes the loss that can not be retrieved.Lens defect detects past at present
It is realized toward by artificial detection.But artificial detection has following obvious deficiency: (1) examining from the angle of production technology and cost
To consider, artificial detection can introduce unnecessary additional link to production assembly, it is unfavorable for the realization of fully-automatic production assembly, while
It will increase cost of labor.(2) from the point of view of production efficiency, artificial detection speed is slower, cannot achieve on-line checking.(3)
From the point of view of testing result, artificial detection reliability not can guarantee, and be readily incorporated human error.Vision-based detection is each in each row
Industry quality testing field using more and more extensive, for promote detection efficiency and stability play the role of it is vital.But
There are still problems in lens defect detection application for vision-based detection, such as: lens defect scale is often smaller, it is difficult to by direct
Shooting obtains；Lens defect type is more, how larger by set of system realization lens all defect detection difficulty.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of fast and reliable lens defect automatic detection device,
To realize lens defect automatic detection, to improve production efficiency, cost is reduced.Technical solution is as follows:
A kind of lens defect detection device, including camera and camera lens, display screen, annular light source, transparent plate, electricity driving displacement
Platform, electric lifting platform and several parts of electric sliding rail, wherein camera connection lens are fixed on electricity driving displacement platform, with electricity driving displacement
Platform can move up and down, and for adjusting viewing field of camera size, be fixed on immediately below camera lens, for assisting multi-angle polishing to be clapped
Take the photograph measured lens；Transparent plate is fixedly connected on electric sliding rail, for placing lens to be checked, is carried by electric sliding rail transparent flat
Plate movement disengaging detection device；Display screen is fixed on electric lifting platform, for projecting black and white strip, is placed under transparent plate
Side is driven by electric lifting platform and is moved up and down, project on measured lens.
Preferably, the annular light source includes Circular shape lampshade and the LED light that is distributed in different direction.
The present invention has the advantage that due to taking above technical scheme
(1) due to the device that display screen and LED light source is integrated together, it can be used for all kinds of lens defect inspections
It surveys.
(2) device is applicable to the detection of different model lens by displacement platform and lifting platform.
(3) this structure is located in seal casinghousing, can avoid influence of the dust to camera imaging or display screen as far as possible, together
When can avoid influence of the extraneous natural light to detection.
Detailed description of the invention
Fig. 1 is the lens defect automatic detection structure chart that the present invention is previously mentioned
Figure label explanation: 1 camera；2 camera lenses；3 display screens；4LED light source；5 glass plates；6 electricity driving displacement platforms；7 is electronic
Lifting platform；8 electric sliding rails；9 aluminum profile brackets；
Specific embodiment
The present invention will be described with example with reference to the accompanying drawing.
As shown in Figure 1, lens defect detection device provided by the invention is mainly by camera 1, camera lens 2, display screen 3, LED light
Source 4, glass plate 5, electricity driving displacement platform 6, electric lifting platform 7 and more than 8 part of electric sliding rail composition.
System framework is the gantry structure of aluminum profile building, and electricity driving displacement platform 6 is fixed on gantry beam middle position, camera
1 connection lens 2 are fixed on electricity driving displacement platform 6, can be moved up and down with electricity driving displacement platform, for adjusting viewing field of camera size.
Circular shape lampshade is designed, four LED light sources 4 are installed inside lampshade, four orientation is evenly distributed on, is opened in rectangular metal plate center
Looping pit reserves shooting area, and connection Circular shape lampshade is fixed on together immediately below camera lens, for assisting multi-angle polishing to carry out
Shoot measured lens.Glass plate 5 is fixedly connected on electric sliding rail 8, and lens to be checked are placed on glass plate, by electric sliding
Rail carries movement disengaging detection device.Display screen 3 is used to project black and white strip, is fixed on electric lifting platform 7, is placed on system
Immediately below glass plate, is driven and moved up and down by lifting platform, project on measured lens.Complete machine is installed outside package unit
Shell guarantees measurement environment close to dark room conditions.
Detect detailed process are as follows: firstly, electric sliding rail 8 drives glass plate 5 to stretch out, lens are put into glass and put down by external device (ED)
On plate.Next, electric sliding rail 8 drives glass plate 5 to retract, measured piece is made to reach specified detection position.Then, display screen 3
Show that a series of stripeds, camera 1 cooperate telecentric lens 2 to acquire corresponding pattern, judge whether there is item by phase processing algorithm
Line.Finally, LED light source 4 lights respectively, camera synchronous acquisition corresponding pattern is judged whether there is scarce by image processing algorithm
It falls into.
Claims (2)
1. a kind of lens defect detection device, including camera and camera lens, display screen, annular light source, transparent plate, electricity driving displacement
Platform, electric lifting platform and several parts of electric sliding rail.Wherein, camera connection lens are fixed on electricity driving displacement platform, with electricity driving displacement
Platform can move up and down, and for adjusting viewing field of camera size, be fixed on immediately below camera lens, for assisting multi-angle polishing to be clapped
Take the photograph measured lens；Transparent plate is fixedly connected on electric sliding rail, for placing lens to be checked, is carried by electric sliding rail transparent flat
Plate movement disengaging detection device；Display screen is fixed on electric lifting platform, for projecting black and white strip, is placed under transparent plate
Side is driven by electric lifting platform and is moved up and down, project on measured lens.
2. the apparatus according to claim 1, which is characterized in that the annular light source includes Circular shape lampshade and is distributed in not
With the LED light in orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325106.1A CN110044926A (en) | 2019-04-22 | 2019-04-22 | A kind of lens defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325106.1A CN110044926A (en) | 2019-04-22 | 2019-04-22 | A kind of lens defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044926A true CN110044926A (en) | 2019-07-23 |
Family
ID=67278390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910325106.1A Pending CN110044926A (en) | 2019-04-22 | 2019-04-22 | A kind of lens defect detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110044926A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123686A (en) * | 2020-01-09 | 2020-05-08 | 广州市心鉴智控科技有限公司 | Light-transmitting cylindrical lens detection device and detection method thereof |
| CN111337518A (en) * | 2020-03-19 | 2020-06-26 | 东莞市瑞图新智科技有限公司 | Lens defect detecting system |
| CN111366072A (en) * | 2020-02-11 | 2020-07-03 | 天津大学 | Data acquisition method for image deep learning |
| CN111693542A (en) * | 2020-06-03 | 2020-09-22 | 宿州市迎盛科技有限公司 | Mobile phone screen detection device and detection method |
| CN111965199A (en) * | 2020-08-05 | 2020-11-20 | 杭州农鑫科技有限公司 | Automatic light-focusing light-transmitting flat plate defect detection device |
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| CN103293162A (en) * | 2013-06-17 | 2013-09-11 | 浙江大学 | Lighting system and method used for dark field detection of defect in spherical optical element surface |
| CN103743412A (en) * | 2013-12-24 | 2014-04-23 | 北京航天时代光电科技有限公司 | Nondestructive detection device for light path of fiber-optic gyroscope |
| CN207197787U (en) * | 2017-06-27 | 2018-04-06 | 歌尔科技有限公司 | The device and virtual reality helmet of lens effective focal length are determined using camera |
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| CHUNG-FENG JEFFREY KUO ET AL.: "Automated defect inspection system for CMOS image sensor with micro multi-layer non-spherical lens module", 《JOURNAL OF MANUFACTURING SYSTEMS》 * |
| CILONG YU等: "Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes", 《MATERIALS》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123686A (en) * | 2020-01-09 | 2020-05-08 | 广州市心鉴智控科技有限公司 | Light-transmitting cylindrical lens detection device and detection method thereof |
| CN111366072A (en) * | 2020-02-11 | 2020-07-03 | 天津大学 | Data acquisition method for image deep learning |
| CN111366072B (en) * | 2020-02-11 | 2021-05-14 | 天津大学 | Data acquisition method for image deep learning |
| CN111337518A (en) * | 2020-03-19 | 2020-06-26 | 东莞市瑞图新智科技有限公司 | Lens defect detecting system |
| CN111693542A (en) * | 2020-06-03 | 2020-09-22 | 宿州市迎盛科技有限公司 | Mobile phone screen detection device and detection method |
| CN111965199A (en) * | 2020-08-05 | 2020-11-20 | 杭州农鑫科技有限公司 | Automatic light-focusing light-transmitting flat plate defect detection device |
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Application publication date: 20190723 |
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