CN108195802A - A kind of novel diamond luminescence imaging detection method - Google Patents
A kind of novel diamond luminescence imaging detection method Download PDFInfo
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- CN108195802A CN108195802A CN201711162022.8A CN201711162022A CN108195802A CN 108195802 A CN108195802 A CN 108195802A CN 201711162022 A CN201711162022 A CN 201711162022A CN 108195802 A CN108195802 A CN 108195802A
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6456—Spatial resolved fluorescence measurements; Imaging
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
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- Optics & Photonics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a kind of novel diamond luminescence imaging detection methods, start light source, and the exciting light that light source is sent out is irradiated on sample to be tested, and sample fluoresces；Light source is closed, sample is phosphorescent；High frequency repeat switch or during covering light source, image-forming module persistently obtains real-time picture frame, in each switch or covers in period of exciting light, corresponding picture frame is phosphor pattern during without exciting light；Phosphor pattern during by each period without exciting light clips to a window and plays out, and then obtain phosphorescence real-time recording；The phosphorescence real-time recording or phosphor pattern played by observing display module carries out real-time judgment by phosphorescence to the true and false of diamond.The detection speed of the application is fast, it is inexpensive, easy to operate, can quickly screen out abnormal diamond, be suitble to batch detection and the diamond being embedded on ring, screen out abnormal diamond, and its determining specific location on ring in real time.
Description
Technical field
The present invention relates to diamond testing equipment fields, and in particular to a kind of novel diamond luminescence imaging detection method.
Background technology
Diamond can send out fluorescence under the excitation of ultraviolet light.Some diamond of shape can fluoresce, usually blue and white
Fluorescence also has the fluorescence of least a portion of diamond jaundice color.
Diamond has fluorescence, is partly also possible to phosphorescence.Diamond can send out intensity difference when by ultraviolet light
Blue visible light, here it is fluorescence, if removing ultraviolet source, diamond remains to send out visible ray, and here it is phosphorescence.
The fluorescence of different diamonds has obvious difference in color, power, thus into packet diamond in Preliminary Identification
When, a kind of simplest method is exactly diamond under the irradiation of ultraviolet lamp, if fluorescence is strong and weak, color is different, then
It is exactly true diamond, if color power is uniform, is particularly likely that the Counterfeit Item of diamond.
Often there is illegal retailer that rhinestone is mingled in rough diamond now, traditional detection means detection speed
Slowly, it is highly detrimental to quickly screen rhinestone from rough diamond, while existing equipment and detection method are usual
It is to be detected for the diamond of bulky grain, and lacks the quick detection means for broken brill.The broken brill of usual purchaser's buying
Quantity is more, using traditional means Detection task weight, and meanwhile it is high to broken brill testing cost, detection efficiency is low, is highly detrimental to reduce
Purchase the risk of strass.
The existing method for photographing to record phosphorescence distribution, in order to improve efficiency, the broken spread overwide areas that bores of generally use is taken pictures,
Since irradiation light irradiated area is big, the longer irradiation time of primary needs is shot；It is carried out when needing to be directed to single diamond in photo
During analysis, the picture resolution of single diamond just seems relatively low, can not meet the requirements.The phosphorescence of single position can only be obtained simultaneously
Image is not suitable for the sample (for example, inlaying the diamond ring of a lot of broken brills) of three-dimensional distribution.
And phosphorescence method is photographed to record under existing small area illumination, it needs primary by once just carrying out taking pictures manually, if
Sample is taken, needs just to can determine that after the completion of taking pictures.Due to detecting the usual very little of sample, if taking fixed form, every time
Designated position will be fixed on, by a test, operating efficiency is very low.And if using manual mode, it first to take pictures every time
Or after other modes determine alignment, it could start to detect, if deviateing mensuration region in rotation process, take pictures out is exactly empty
White photo, such practical operation difficulty greatly increase.If the diamond ring that a lot of broken brills are inlayed in measurement needs to spend largely
Time.
Invention content
In view of the above-mentioned problems, the present invention is intended to provide a kind of novel diamond of efficiently easy to operate, quick examination diamond shines
Imaging detection method.
To realize the technical purpose, the scheme of the invention is：A kind of novel diamond luminescence imaging detection method, including light
Source, image-forming module, display module, are as follows：
The first step starts light source, and the exciting light that light source is sent out is irradiated on sample to be tested, and sample fluoresces；Close light source,
Sample is phosphorescent；During high frequency repeat switch or covering light source, image-forming module persistently obtains real-time picture frame, at each
Switch was covered in period of exciting light, and corresponding picture frame is phosphor pattern during without exciting light；
Second step, by each period without exciting light when phosphor pattern, clip to a window and play out, and then
Obtain phosphorescence real-time recording；
Third step, the phosphorescence real-time recording or phosphor pattern played by observing display module, by the presence or absence of phosphorescence or
Person's color carries out real-time judgment to the true and false of diamond.
Preferably, in the first step, within the period of each switch or covering exciting light, when being irradiated to exciting light
Corresponding picture frame is fluorescent image；
In the second step, fluorescent image when will be irradiated to exciting light in each period clips to a window and carries out
It plays, and then obtains fluorescence real-time recording；
In the third step, the fluorescence real-time recording or fluorescent image that are played by observing display module pass through exciting light
The present position of sample to be tested is observed in real time with fluorescence.
Preferably, in the first step, within the period of each switch or covering exciting light, when closing exciting light
The visible ray that pulse mode is sent out is added in, visible ray video recording can be obtained, it can be to residing for sample to be tested by visible ray video recording
It is observed in real time position.
Preferably, the light source is light-pulse generator.
Preferably, the light source front end is provided with chopper, the exciting light for by chopper carrying out that light source is controlled to send out
It covers or is connected repeatedly.
Preferably, in the second step, phosphor pattern extraction during by each period without exciting light, and extract phase
With the fluorescent image with location information in the period, by post-processing, sample to be tested that exciting light, fluorescence are illuminated integrally as
Background, the background are superimposed with phosphorescence luminous component, final to obtain fluorescence localization phosphorescence real-time recording.
Preferably, in the second step, phosphor pattern extraction during by each period without exciting light, and extract phase
With the visible images with location information in the period, pass through post-processing, it will be seen that the bright sample to be tested of illumination is integrally as the back of the body
Scape, the background are superimposed with phosphorescence luminous component, finally obtain visible light-seeking phosphorescence real-time recording.
Preferably, in the third step, diamond sends out fluorescence, and fluorescence color is non-blue and white, then this diamond defines
For abnormal diamond.
Preferably, in the third step, diamond sends out phosphorescence, and phosphorescence color is blue-green, then this diamond is defined as
Synthesizing diamond；Phosphorescence color is any other color, then this diamond is defined as abnormal diamond.
Preferably, in the first step, for image-forming module during captured in real-time sample to be tested, sample to be tested is can be with
It is rotated or is moved in real time；
By observing the fluorescence real-time recording obtained, it can realize and whether confirm sample to be tested in observation position, and can
To confirm the viewing angle of sample to be tested；
Sample to be tested is moved or is rotated in real time to suitable position when position returns to the first step when either angle is improper
It puts or angle.
Beneficial effects of the present invention obtain fluorescence real-time recording, phosphorescence real-time recording, without artificially pressing using Editing
Under take pictures, continuously shot with video-corder, the diamond on sample can be investigated in real time by observing phosphorescence real-time recording automatically, it is auxiliary
Specific location of the abnormal diamond in sample to be tested is confirmed with fluorescence realtime graphic；It simultaneously can also be by observing fluorescence realtime graphic
The position of sample to be tested can be adjusted in time, it is made to shoot with video-corder region in image-forming module；The detection speed of the application is fast, inexpensive, easy
Operation can quickly screen out abnormal diamond, be suitble to batch detection and the diamond being embedded on ring, screen out exception in real time
Diamond, and determine its specific location on ring.
Specific embodiment
The present invention is described in further details with reference to specific embodiment.
Specific embodiment of the present invention is a kind of novel diamond luminescence imaging detection method, including light source, imaging mould
Block, display module, are as follows：
The first step starts light source, and the exciting light that light source is sent out is irradiated to after optical filter on sample to be tested, and sample is sent out glimmering
Light；Light source is closed, sample is phosphorescent；During high frequency repeat switch or covering light source, image-forming module persistently obtains real-time figure
It as frame, in each switch or covers in period of exciting light, corresponding picture frame is phosphor pattern during without exciting light.Due to
There are one or more diamonds on sample to be tested, during picture frame is obtained, sample to be tested can adjust position or turn in real time
Dynamic angle, the phosphor pattern and fluorescent image of single diamond different location of detection or the phosphorus for continuously detecting more diamonds respectively
Light image and fluorescent image.If light source is single wavelength or simple composite light source, direct irradiation sample may be used；If
Light source is complicated complex light, increases setting optical filter generally between light source and sample, can be obtained by optical filter specific
The exciting light of wave band.
Second step, by each period without exciting light when phosphor pattern, clip to a window and play out, and then
Obtain phosphorescence real-time recording；
Third step, the phosphorescence real-time recording or phosphor pattern played by observing display module, by the presence or absence of phosphorescence or
Person's color carries out real-time judgment to the true and false of diamond.
In order to obtain the real time position of abnormal diamond, in the first step, in each switch or exciting light is covered
Period in, it is fluorescent image to be irradiated to during exciting light corresponding picture frame；
In the second step, fluorescent image when will be irradiated to exciting light in each period clips to a window and carries out
It plays, and then obtains fluorescence real-time recording；
In the third step, the fluorescence real-time recording or fluorescent image that are played by observing display module pass through exciting light
The present position of sample to be tested is observed in real time with fluorescence.It, sometimes can not photo peripheral ring since phosphorescence light is very weak
Border so other images is needed to be positioned, and can collect fluorescent image in each period, and fluorescent image is in shooting process
In have exciting light and fluorescence, surrounding enviroment are relatively clear, can accurately carry out alignment operation, sample is aligned image-forming module,
Specific location and angle of the abnormal diamond phase for sample to be tested are determined simultaneously.
In order to more accurately obtain the accurate real time position of abnormal diamond, in the first step, in each switch or screening
In the period of lid exciting light, the visible ray that pulse mode is sent out is added in when closing exciting light, visible ray video recording can be obtained, passed through
Visible ray video recording can observe the present position of sample to be tested in real time.Since phosphorescence is very faint, if sample to be tested
On when having more diamonds, accurately can not know diamond is located at sample where by video recording；And fluorescence and exciting light when part
, can be very unclear using fluorescent image positioning when light is also weaker, the visible ray that pulse mode is sent out is introduced at this time, you can
The real-time visible images of sample to be tested clearly to be become clear can accurately determine abnormal diamond phase for the specific of sample to be tested
Position and angle.
In order to preferably obtain the repeat switch effect of pulsed, the light source is light-pulse generator.The light source front end is set
Chopper is equipped with, the exciting light for by chopper carrying out that light source is controlled to send out is covered or is connected repeatedly.Above two mode
Stable high frequency repeat switch either covering effect and then the irradiation of realization exciting light or the switching do not irradiated are obtained, so as to obtain
Obtain fluorescent image and phosphor pattern.
For the position of the more intuitive abnormal diamond of observation, in the second step, by each period without exciting light
When phosphor pattern extraction, and extract the fluorescent image with location information in same period, by post-processing, by exciting light,
Integrally as background, which is superimposed the sample to be tested that fluorescence illuminates with phosphorescence luminous component, final to obtain fluorescence localization phosphorescence
Real-time recording.Such as the diamond ring of the broken brill of a circle is covered with, the brill for sending out phosphorescence is can see by fluorescence localization phosphorescence real-time recording
Specific location and angle of the stone on diamond ring.
For the position of the more intuitive abnormal diamond of observation, in the second step, by each period without exciting light
When phosphor pattern extraction, and extract the visible images with location information in same period, pass through post-processing, it will be seen that light
Integrally as background, which is superimposed the sample to be tested illuminated with phosphorescence luminous component, and it is real finally to obtain visible light-seeking phosphorescence
When record a video.Since phosphorescence shines very faint, its position can not be accurately judged, the intensity of fluorescence and exciting light is also inadequate sometimes,
It then needs through stronger visible images auxiliary positioning.
In order to preferably distinguish abnormal diamond, during the third walks, diamond sends out fluorescence, and fluorescence color is non-blue and white,
Then this diamond is defined as abnormal diamond；
Diamond sends out phosphorescence, and phosphorescence color is blue-green, then this diamond is defined as synthesizing diamond；Phosphorescence color is other
Random color, then this diamond be defined as abnormal diamond.Fluoresced according to diamond, phosphorescence whether there is or the difference of color, can be with
Rapid preliminary screening is carried out, and is classified, the later stage is facilitated to do more accurately screening or detection.It completes after distinguishing classification,
Abnormal diamond is suspected, further targetedly can individually be detected.
It observes the corresponding position of phosphor pattern in real time for the convenience of the users, in second step, will not have in each period
Phosphor pattern extraction during exciting light, and fluorescent image or visible images with location information in same period are extracted, lead to
Post-processing is crossed, it is final to obtain phosphoresence band position real-time recording.
It is quickly detected for convenience, in the first step, image-forming module is treated during captured in real-time sample to be tested
Sample is to be rotated or be moved in real time；
By observing the fluorescence real-time recording obtained, it can realize and whether confirm sample to be tested in observation position, and can
To confirm the viewing angle of sample to be tested；
Sample to be tested is moved or is rotated in real time to suitable position when position returns to the first step when either angle is improper
It puts or angle.In practical operation, existing equipment, which is typically only capable to be fixed on a certain position, to be observed, and can not be moved or be turned in real time
It is dynamic, if the angle of diamond that position offset or needs are observed is not right, need just be adjusted, and right after the completion of taking pictures
It is gradually detected one by one in inlaid diamond needs multiple on ring, efficiency is very low.The application can be rotated in detection process or
Person moves sample to be tested, is adjusted in real time by fluorescence real-time recording, one or more diamonds or edge either in plane
The ring of embedding a lot of diamonds can disposably be continuously finished detection.
Example one, has inlayed a circle diamond ring of 20, during detection, starts light source, light source high frequency repeat switch or screening
Lid, the fluorescence real-time recording that observation display module plays, due to being real-time recording, can quickly adjust the position and angle of ring
Degree, ring is allowed to appear in the shooting area of image-forming module, and (prior art is usually required to fix or be positioned after taking pictures, efficiency
It is low).After alignment, start slowly rotation ring, image-forming module shoots with video-corder the fluorescent image in lower each period and phosphorescence figure automatically at this time
Picture, and continue in display module to play continuous fluorescence real-time recording, phosphorescence real-time recording, user need to only observe ring one by one
The phosphorescence real-time recording of upper every diamond is shot without operating, and is found the abnormal diamond for sending out phosphorescence, can be detected with one-time continuous
20 diamonds of complete whole curved surface distribution；When finding that certain diamond sends out phosphorescence, stop operating, operating personnel can be real-time
It is marked video time, then recording exceptional diamond feature carries out manual analysis discussion, and can be in fluorescence real-time recording
The position of the exception diamond on ring is accurately positioned, can quickly detect to be mingled in and many inlay diamond
In abnormal diamond.Due to being continuously to shoot with video-corder, diamond ring is also rotating, and fluorescence real-time recording can obtain same diamond
The phosphorescence of different angle, due to angle difference, intensity, the color of phosphorescence can be also slightly different, and operator can obtain more
Diamond information carries out comprehensive descision.
Diamond (more diamonds for being located at different location angle) after conventional method can not quickly inlay more carries out
It fast and accurately detects, the application obtains fluorescence real-time recording, phosphorescence real-time recording using Editing, without artificially pressing bat
According to continuously being shot with video-corder, taken pictures without manual control automatically, the operation is more convenient, can be right by observing phosphorescence real-time recording
Diamond on sample is investigated in real time, is aided with fluorescence realtime graphic and is confirmed specific location of the abnormal diamond in sample to be tested；Together
When can also in time adjust the position of sample to be tested by observing fluorescence realtime graphic, it is made to shoot with video-corder region in image-forming module；
The detection speed of the application is fast, it is inexpensive, easy to operate, can quickly screen out abnormal diamond, be suitble to batch detection and inlayed
Diamond on ring can screen out abnormal diamond, and determine its specific location on ring in real time.
And the application is real-time to the investigation of abnormal diamond, completes to judge at once, without after having detected completely again
Abnormal diamond position is oriented, is judged without measuring phosphor pattern after exciting light is closed again；And since phosphorescence is sent out
It is short between light time, it shines weak, the phosphorescence photo resolution that the zonule irradiation of the application obtains is high, and high definition phosphorescence picture forms
Phosphorescence real-time recording, user more intuitive can accurately judge, reduce probability of miscarriage of justice.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, every skill according to the present invention
Any trickle amendment, equivalent replacement and the improvement that art substantially makees above example, should be included in technical solution of the present invention
Protection domain within.
Claims (10)
1. a kind of novel diamond luminescence imaging detection method, it is characterised in that：Including light source, image-forming module, display module, specifically
Step is as follows：
The first step starts light source, and the exciting light that light source is sent out is irradiated on sample to be tested, and sample fluoresces；Close light source, sample
It is phosphorescent；During high frequency repeat switch or covering light source, image-forming module persistently obtains real-time picture frame, in each switch
Or cover in period of exciting light, corresponding picture frame is phosphor pattern during without exciting light；
Second step, by each period without exciting light when phosphor pattern, clip to a window and play out, and then obtain
Phosphorescence real-time recording；
Third step, the phosphorescence real-time recording or phosphor pattern played by observing display module, pass through the presence or absence of phosphorescence or face
Color carries out real-time judgment to the true and false of diamond.
2. novel diamond luminescence imaging detection method according to claim 1, it is characterised in that：In the first step,
In the period of each switch or covering exciting light, it is fluorescent image to be irradiated to corresponding picture frame during exciting light；
In the second step, fluorescent image when will be irradiated to exciting light in each period clips to a window and plays out,
And then obtain fluorescence real-time recording；
In third step, the fluorescence real-time recording or fluorescent image that are played by observing display module, by exciting light and glimmering
Light observes the present position of sample to be tested in real time.
3. novel diamond luminescence imaging detection method according to claim 1, it is characterised in that：In the first step,
In the period of each switch or covering exciting light, the visible ray that pulse mode is sent out is added in when closing exciting light, can be obtained
Visible ray is recorded a video, and the present position of sample to be tested can be observed in real time by visible ray video recording.
4. novel diamond luminescence imaging detection method according to claim 1, it is characterised in that：The light source is pulsed light
Source.
5. novel diamond luminescence imaging detection method according to claim 1, it is characterised in that：The light source front end setting
There is chopper, the exciting light for by chopper carrying out that light source is controlled to send out is covered or is connected repeatedly.
6. novel diamond luminescence imaging detection method according to claim 2, it is characterised in that：It, will in the second step
Phosphor pattern extraction when in each period without exciting light, and the fluorescent image with location information in same period is extracted, lead to
Post-processing is crossed, integrally as background, which is superimposed the sample to be tested that exciting light, fluorescence are illuminated with phosphorescence luminous component,
It is final to obtain fluorescence localization phosphorescence real-time recording.
7. novel diamond luminescence imaging detection method according to claim 3, it is characterised in that：It, will in the second step
Phosphor pattern extraction when in each period without exciting light, and the visible images with location information in same period are extracted,
Pass through post-processing, it will be seen that the bright sample to be tested of illumination is integrally as background, which is superimposed with phosphorescence luminous component, finally
Obtain visible light-seeking phosphorescence real-time recording.
8. novel diamond luminescence imaging detection method according to claim 2, it is characterised in that：In the third step, bore
Stone sends out fluorescence, and fluorescence color is non-blue and white, then this diamond is defined as abnormal diamond.
9. novel diamond luminescence imaging detection method according to claim 1, it is characterised in that：In the third step, bore
Stone sends out phosphorescence, and phosphorescence color is blue-green, then this diamond is defined as synthesizing diamond；Phosphorescence color is any other color,
Then this diamond is defined as abnormal diamond.
10. novel diamond luminescence imaging detection method according to claim 2, it is characterised in that：In the first step, into
For picture module during captured in real-time sample to be tested, sample to be tested is to be rotated or be moved in real time；
By observing the fluorescence real-time recording obtained, it can realize and whether confirm sample to be tested in observation position, and can be true
Recognize the viewing angle of sample to be tested；
When position returned when either angle is improper the first step moved or rotated in real time sample to be tested to suitable position or
Person's angle.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580574A (en) * | 2019-01-21 | 2019-04-05 | 国检中心深圳珠宝检验实验室有限公司 | A kind of ruby fluorescence detection system and its ruby fluorescence detection method |
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