CN207472786U - Dome light source diamond measuring instrument - Google Patents
Dome light source diamond measuring instrument Download PDFInfo
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- CN207472786U CN207472786U CN201721632756.3U CN201721632756U CN207472786U CN 207472786 U CN207472786 U CN 207472786U CN 201721632756 U CN201721632756 U CN 201721632756U CN 207472786 U CN207472786 U CN 207472786U
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Abstract
The utility model is related to jewel detection fields, provide a kind of dome light source diamond measuring instrument.A kind of dome light source diamond measuring instrument, including processor, light source assembly, image collecting device and sample stage for placing sample；The light source assembly includes light-emitting component and reflecting plate, and for the reflecting plate between light-emitting component and image collecting device, the center of reflecting plate offers through-hole；The light that the light-emitting component launches different angle forms the incident ray for being radiated at the sample on sample stage after baffle reflection；The center of the sample stage, the center of light-emitting component, the center of reflecting plate and image collecting device center be located on same central axes.The optical parameter of dome light source diamond measuring instrument energy directly determination sample can effectively, objectively evaluate the optical effect of diamond.
Description
Technical field
The utility model is related to jewel detection field more particularly to a kind of dome light source diamond measuring instrument and diamond measurement sides
Method.
Background technology
It is the strong reflection generated due to its special cut to incident ray that diamond is bright, these reflexs are divided into bright
Light, fire are color and flicker, merging are known as brightness (Brilliance).In order to evaluate the quality of diamond brightness, traditionally, pass through
The cut parameter (geometric parameter including cut, symmetrical degree, polishing) of diamond is evaluated.The basic principle of these methods
Establish Marcel Tolkowsky to diamond it is optical two dimension research on the basis of (《Diamond Design:A Study of
the Reflection and Refraction of Light in a Diamond》), that is to say, that optical effect of diamond
Evaluation is realized by the evaluation of indirect cut parameter.
However cut parameter is difficult to describe the optical effect of a specific diamond, it is impossible to the figure of diamond reflection light be depicted
Case, often identical different diamonds of cut parameter, with different optical effects, with different Christmas tree patterns, therefore basis
Cut parameter is difficult to be accurately judged to the quality of optical effect of diamond.
Utility model content
The purpose of this utility model is to provide a kind of dome light source diamond measuring instrument and diamond measuring methods, can directly survey
The optical parameter of random sample product can effectively, objectively evaluate the optical effect of diamond.
In order to solve the above technical problems, utility model uses technical solution as described below.A kind of dome light source diamond is surveyed
Instrument is measured, including processor, light source assembly, image collecting device and sample stage for placing sample, the light source assembly provides
The incident ray positioned at sample on sample stage is radiated at, described image harvester reflects the incident ray for acquiring sample
The image formed；Described image harvester is connected with the processor, and the processor is for reception by image collector
It puts the image collected and obtains the optical parameter of sample using the image processing and analyzing；The light source assembly includes light-emitting component
And reflecting plate, for the reflecting plate between light-emitting component and image collecting device, the center of reflecting plate offers through-hole；It is described
The light that light-emitting component launches different angle forms the incident light for being radiated at the sample on sample stage after baffle reflection
Line；The center of the sample stage, the center of light-emitting component, the center of reflecting plate and image collecting device center be located at it is same in
On axis.
Preferably, the light-emitting component includes the lamp bead in concentric turns distribution.
Preferably, the light-emitting component further includes one for carrying the load-bearing part of the lamp bead, and the load-bearing part is in disk
Shape, outer diameter 60-200mm, internal diameter 20-60mm.
Preferably, the reflecting plate is in the form of annular discs, outer diameter 60-200mm, internal diameter 20-60mm.
Preferably, the sample stage includes the lamina of septum pellucidum being oppositely arranged with the reflecting plate and for described in fixation
The diaphragm of sample；The lamina of septum pellucidum is round, a diameter of 9-40mm.
Preferably, the diamond measuring instrument further includes the cabinet with a cabinet panel, and the sample stage is set to cabinet
On panel, the light source assembly and image collecting device are set in cabinet.
Preferably, the cabinet panel is equipped with chassis lid and for the control of light-emitting component to be controlled to switch.
Preferably, the processor further includes display device.
The beneficial effects of the utility model are：
The utility model provides a kind of dome light source diamond measuring instrument, and by providing incident ray, and it is anti-to acquire sample
The image that incident ray is formed is penetrated, handling analysis using acquired image obtains the optical parameter of sample；Relative to existing
Evaluate the optical effect of diamond in technology indirectly by cut parameter, which can direct determination sample
Optical parameter, can effectively, objectively evaluate the optical effect of diamond.Also, light-emitting component launches different angle
Light forms the incident ray for being radiated at the sample on sample stage after baffle reflection, the incident ray class formed in this way
The light that dome light source is sent out is similar to, can preferably measure the illumination effect of diamond；The luminescence component also have it is simple in structure,
The advantages of easily fabricated.The dome light source diamond measuring instrument application prospect is good, can be used for the evaluation of diamond processing quality, can be effective
Improve quality, the yield rate of diamond that diamond is cut in process；The dome light source diamond measuring instrument can be additionally used in diamond into
The quality inspection of product contributes to the quality control of diamond jewelry.
Description of the drawings
Fig. 1 is the structure diagram of dome light source diamond measuring instrument provided by the utility model.
Fig. 2 is the structure diagram of light-emitting component in dome light source diamond measuring instrument provided by the utility model.
Fig. 3 is the flow diagram of diamond measuring method provided by the utility model.
Specific embodiment
To make those of ordinary skill in the art that the purpose, technical scheme and advantage of utility model be more clearly understood,
Utility model is further elaborated below in conjunction with drawings and examples.
Embodiment one
As shown in Figure 1, a kind of dome light source diamond measuring instrument, including processor 14, light source assembly, image collecting device 4
And the sample stage 1 for placing sample 13, the light source assembly offer are radiated at the incident light of the sample 13 on sample stage 1
Line, described image harvester 4 reflect the image that the incident ray is formed for acquiring sample 13；Described image acquisition dress
4 are put with the processor 14 to be connected, the processor 14 for receive by image acquisition device to image and using should
Image processing and analyzing obtains the optical parameter of sample；The light source assembly includes light-emitting component 2 and reflecting plate 3, the reflecting plate 3
Between light-emitting component 2 and image collecting device 4, the center of reflecting plate 3 offers through-hole；The light-emitting component 2 is launched
The light of different angle forms the incident ray for being radiated at the sample 1 on sample stage 13 after the reflection of reflecting plate 3.
Dome light source diamond measuring instrument provided by the utility model by providing incident ray, and acquires sample reflection
The image that incident ray is formed handles analysis using acquired image and obtains the optical parameter of sample；Relative to existing skill
Evaluate the optical effect of diamond in art indirectly by cut parameter, the Optical Parametric of diamond measuring instrument energy directly determination sample
Number can effectively, objectively evaluate the optical effect of diamond.Also, light-emitting component launches the light of different angle through anti-
The incident ray for being radiated at the sample on sample stage is formed after penetrating plate reflection, the incident ray formed in this way is similar to dome
The light that light source is sent out can preferably measure the illumination effect of diamond；The luminescence component also have it is simple in structure, it is easily fabricated
The advantages of.
The center of the sample stage 1, the center of light-emitting component 2, the center of reflecting plate 3 and image collecting device 4 center
On same central axes 8.Setting can preferably ensure that incident ray is impinged upon on sample 13, and can be acquired well in this way
The image that sample 13 reflects.
Herein, it being further explained for dome light source, so-called dome light source is the unobstructed diffused ray of sky,
Such as the lighting condition of the square environment of without sunlight direct projection, under this light source, the light for being incident on sample (i.e. diamond) is full of
The solid angle of 180 degree, and the intensity of the light in each direction is almost consistent, it then follows and zenith is most strong (0 degree), to horizon direction
The rule that (90 degree) gradually weaken, light intensity I can use formula (1) to represent：
I=Io*COS (k* α) (1)
K is the coefficient less than 1 in formula, and α is the incidence angle of light, and Io is the initial strength of light.
It incident ray that light source assembly in the utility model is provided namely is shone by light-emitting component 2 and through reflecting plate 3
The incident ray reflected to form, path can use formula (2) to describe
L=2*H*COS θ (2)
L is light path in formula, and light shines diamond sample paths traversed length from light-emitting component；H is reflecting plate to hair
The distance of optical element, θ are the incidence angle of light incidence diamond.
Since the intensity of sample reception to illumination is directly proportional to the distance of light source, light source is more far away, what sample irradiation arrived
Light intensity is lower.Formula (2) shows to be incident on the distance of the light source of the light of diamond with the increase of incidence angle, and diamond is irradiated to
Light intensity reduce, so formula (2) and formula (1) are of equal value.Illustrate that the light source assembly of the utility model meets the item of dome light source
Part.
Also referring to Fig. 2, it is preferable that the light-emitting component 2 includes the lamp bead 21 in concentric turns distribution, circles different in this way
The lamp bead 21 of ring provides the light of different angle.As shown in Figure 2, it is described for carrying to further include one for the light-emitting component 2
The load-bearing part 22 of lamp bead 21, the load-bearing part 22 is in the form of annular discs, outer diameter 60-200mm, internal diameter 20-60mm.Such as institute in figure
Show, 5 circle lamp beads 21 can be evenly distributed on the load-bearing part 22.Preferably, the reflecting plate 3 is in the form of annular discs, and outer diameter is
60-200mm, internal diameter 20-60mm.Specifically, lamp bead 21 is white light lamp bead, reflecting plate 3 is white reflective plate.
In some specific embodiments, the outer diameter of the load-bearing part 22 is 100mm, internal diameter 32mm, in load-bearing part 22
On be distributed with 4 circle lamp beads 21,4 circle lamp bead 21 diameter be respectively 65mm, 55mm, 45mm and 35mm.Lamp bead 21 and reflecting plate 3
The distance between be 60mm.In use, several lamp beads 21 are lighted simultaneously, the light that lamp bead 21 emits is reflected through reflecting plate 3
The uniform incident ray that incidence angle is 8-45 degree is formed afterwards.
It please referring to Fig.1, it is preferable that the sample stage 1 includes the lamina of septum pellucidum 11 being oppositely arranged with the reflecting plate 3, with
And the diaphragm 12 for fixing the sample 13.Sample 13 is fixed by diaphragm 12, can guarantee sample 13 always situated in
The center of sample stage 1 effectively improves the stability and accuracy of measurement.It is preferred that the lamina of septum pellucidum 11 is circle, it is straight
Diameter is 9-40mm.The diaphragm 12 can be manually or automatically, in certain embodiments, the diaphragm
12 be manual diaphragm.
In some embodiments, the dome light source diamond measuring instrument further includes the cabinet 5 with a cabinet panel 6, institute
It states sample stage 1 to be set on cabinet panel 6, the light source assembly and image collecting device 4 are set in cabinet 5.Specifically such as
Shown in Fig. 1, the sample stage 1 is located at 5 outside of cabinet, and the light-emitting component 2 is located at 6 inside of cabinet panel.Preferably, in machine
Setting supporting plate 7 in case 5 sets or installs described image harvester 4 on supporting plate 7.Preferably, the cabinet panel 6
Chassis lid 10 is equipped with, hood can be played the role of.Preferably, the cabinet panel 6 is equipped with to control light-emitting component 2
Control switch 9, convenient for control light-emitting component 2.In some embodiments, it is also possible to it is that the processor 14 is used to control institute
Light-emitting component 2 or the processor 14 are stated by controlling switch 9 to control light-emitting component 2.
In some preferred embodiments, the processor 14 further includes display device, can show image collecting device 4
The image collected, the reproduction of these images provide the method for directly observing sample optical effect so that the brightness of diamond
More intuitively it can show and recognize, be conducive to show glamour and the business promotion of diamond.Such as the processor 14 is meter
Calculation machine, the screen of computer is display device.
Embodiment two
A kind of diamond measuring method carries out light using a kind of provided dome light source diamond measuring instrument of embodiment to sample
Learn the measurement of parameter.The measurement of optical parameter is carried out to sample using above-mentioned dome light source diamond measuring instrument, can directly be measured
The optical parameter of sample can effectively, objectively evaluate the optical effect of diamond.And the diamond measuring method has operation
Conveniently, the advantages of test result is accurate.The diamond measuring method application prospect is good, can be used for the evaluation of diamond processing quality, energy
Effectively improve quality, the yield rate of diamond that diamond in process is cut；The diamond measuring method can be additionally used in diamond finished product
Quality inspection, the displaying of the brightness of diamond jewelry contributes to the quality control and business promotion of diamond jewelry.
It, can be with according to the explanation of the dome light source diamond measuring instrument in embodiment one also referring to shown in Fig. 1 and Fig. 3
Understand, the diamond measuring method includes：
Step S1：Start the dome light source diamond measuring instrument, collect sample 13 and reflect the incident ray and formed
Image；Specifically, lighting light-emitting component 2, that is, all lamp beads 21 are lighted, the light that lamp bead 21 is sent out is after reflecting plate 3 is penetrated
The incident ray for being radiated at the sample 13 on sample stage 1 is formed, described image harvester 4 reflects institute for acquiring sample 13
State the image that incident ray is formed；
Step S2：The processor 14 receives by 4 the image collected of image collecting device and utilizes the image procossing point
Analysis obtains the optical parameter of sample 13.Preferably, 4 the image collected of image collecting device is digitized information processing to obtain
To image data and store；Be digitized into being more convenient for after information processing accuracy, the rapidity of data transmission, and storage immediately can be right
Data are effectively preserved, convenient for checking.The optical parameter is brightness and the color intensity of fire.Therefore, it is preferred real at some
It applies in example, the diamond measuring method further comprises 4 the image collected of image collecting device being digitized at information
Reason obtains image data and stores, and carrying out analysis using the image data is calculated the brightness of sample 13 and the color intensity of fire.
Further, the analysis of the brightness is calculated as：The gray value of each pixel of the image collected is read, and
Be reflective bright district more than the gray threshold compared with preset gray threshold, the gray value of the bright district picture element it
The as brightness value of sample.The calculation formula of brightness is：
Lz is the brightness of diamond sample in formula, and Li is the brightness value of ith pixel point in image, and m is the sum of all pixels of image.
Further, the analysis of the color intensity of fire is calculated as：Read R, G, the B for each picture element for collecting image
Value, and hue value, saturation degree and brightness (HSL) are calculated, the pixel that saturation degree is more than predetermined threshold value with brightness is color point,
And it is calculated as chroma value；The sum of chroma value of color point is the color intensity value of fire.The calculation formula of fiery coloured silk intensity is：
Lc is the color intensity of fire of diamond sample in formula, and Lci is the chroma value of ith pixel point in image, and m is the pixel of image
Sum.
Claims (8)
1. a kind of dome light source diamond measuring instrument, including processor, light source assembly, image collecting device and for placing sample
Sample stage, the light source assembly offer are radiated at the incident ray of the sample on sample stage, and described image harvester is used for
Acquisition sample reflects the image that the incident ray is formed；Described image harvester is connected with the processor, the place
Reason device for receive by image acquisition device to image and obtain the optical parameter of sample using the image processing and analyzing；
It is characterized in that：
The light source assembly includes light-emitting component and reflecting plate, the reflecting plate be located at light-emitting component and image collecting device it
Between, the center of reflecting plate offers through-hole；The light that the light-emitting component launches different angle is formed after baffle reflection
It is radiated at the incident ray positioned at sample on sample stage；
The center of the sample stage, the center of light-emitting component, the center of reflecting plate and image collecting device center be located at it is same
On central axes.
2. dome light source diamond measuring instrument as described in claim 1, it is characterised in that：The light-emitting component is included in concentric turns
The lamp bead of distribution.
3. dome light source diamond measuring instrument as claimed in claim 2, it is characterised in that：The light-emitting component further includes one and is used for
The load-bearing part of the lamp bead is carried, the load-bearing part is in the form of annular discs, outer diameter 60-200mm, internal diameter 20-60mm.
4. dome light source diamond measuring instrument as claimed in claim 3, it is characterised in that：The reflecting plate is in the form of annular discs, outside
Diameter is 60-200mm, internal diameter 20-60mm.
5. dome light source diamond measuring instrument as described in claim 1, it is characterised in that：The sample stage includes and the reflection
The lamina of septum pellucidum that plate is oppositely arranged and the diaphragm for fixing the sample；The lamina of septum pellucidum is round, a diameter of 9-
40mm。
6. dome light source diamond measuring instrument as described in claim 1, it is characterised in that：Further include the machine with a cabinet panel
Case, the sample stage are set on cabinet panel, and the light source assembly and image collecting device are set in cabinet.
7. dome light source diamond measuring instrument as claimed in claim 6, it is characterised in that：The cabinet panel is equipped with chassis lid
And for the control of light-emitting component to be controlled to switch.
8. the dome light source diamond measuring instrument as described in claim any one of 1-7, it is characterised in that：The processor also wraps
Include display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721632756.3U CN207472786U (en) | 2017-11-29 | 2017-11-29 | Dome light source diamond measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721632756.3U CN207472786U (en) | 2017-11-29 | 2017-11-29 | Dome light source diamond measuring instrument |
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| Publication Number | Publication Date |
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| CN207472786U true CN207472786U (en) | 2018-06-08 |
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ID=62259995
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721632756.3U Active CN207472786U (en) | 2017-11-29 | 2017-11-29 | Dome light source diamond measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796819A (en) * | 2017-11-29 | 2018-03-13 | 周大生珠宝股份有限公司 | Dome light source diamond measuring instrument and diamond measuring method |
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2017
- 2017-11-29 CN CN201721632756.3U patent/CN207472786U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796819A (en) * | 2017-11-29 | 2018-03-13 | 周大生珠宝股份有限公司 | Dome light source diamond measuring instrument and diamond measuring method |
| CN107796819B (en) * | 2017-11-29 | 2023-06-02 | 周大生珠宝股份有限公司 | Dome light source diamond measuring instrument and diamond measuring method |
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