CN209117182U - A kind of color measuring device - Google Patents
A kind of color measuring device Download PDFInfo
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- CN209117182U CN209117182U CN201821912555.3U CN201821912555U CN209117182U CN 209117182 U CN209117182 U CN 209117182U CN 201821912555 U CN201821912555 U CN 201821912555U CN 209117182 U CN209117182 U CN 209117182U
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- 230000003595 spectral effect Effects 0.000 abstract description 6
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- Investigating Or Analysing Materials By Optical Means (AREA)
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Abstract
The utility model discloses a kind of color measuring device, including lighting device and optical measuring device, which is characterized in that the lighting device includes the lighting source of integrating sphere and one or more, and wherein lighting source is set to inside integrating sphere；Lighting window is equipped in integrating sphere bottom；The part direct light of the lighting source is directly emitted by corresponding lighting window and illuminates sample surface；The light of sample surface reflection is received by spectral measurement device and is measured.Compared with traditional colour examining equipment, the emergent light of utility model device lighting source directly shines directly into sample by integrating sphere soffit lighting window without integrating sphere light mixing, not only ensure irradiate uniformity, and the illumination efficiency for greatly improving equipment is obviously improved, for improving the accuracy of measurement and repeatability important in inhibiting of sample surface optical characteristics, it is widely used in the measurement of sample surfaces optical characteristics.
Description
[technical field]
The utility model relates to optical radiation measurement fields, and in particular to a kind of survey for body surface optical characteristic measurement
Color device.
[background technique]
Body surface optical characteristics, such as reflectivity, color, gloss are the important parameters for evaluating its surface quality.Currently,
Spectrophotometric color measurement instrument is widely used in material or color sample measurement, generally there is D/8,45/0 illumination measure geometry.45/0 illumination is surveyed
Amount geometry is more close with the color perception of eye-observation object, is widely applied in the quality control measurement of color appearance.So
And actual measurement, 45/0 test geometry are more sensitive for the texture structure of sample surfaces, to the illumination uniformity of sample surfaces
Require it is higher, for textured, in the case where illumination unevenness, measurement result it is less reproducible, color measuring is brought
Relatively large deviation.Therefore, it for the colour photometer based on 45/0 test geometry, not only needs to meet CIE No.15, ISO 7724/1,
The illumination measure geometry condition of the standard requirements such as ASTM E179, it is also desirable to guarantee the uniformity of sample surfaces irradiation and and to light
The monitoring of source fluctuation, to provide the repeatability of measurement data.
In order to promote the uniformity and measurement reproducibility of the irradiation of grain sample surfaces, the ring illumination based on integrating sphere
Mode is often used in colour examining equipment, if patent No. US 7484147B2 discloses a kind of surface characteristic measuring device, that is, is adopted
It is integrating sphere ring illumination scheme, which is arranged more than one lighting source, the outgoing of lighting source in integrating sphere
Light is radiated at sample table in integrating sphere after diffusing reflection and then by the ring illumination window of integrating sphere bottom with 45 ° of directions
Face, further, sample surfaces reflected light are received by optical measuring device and are measured；Although above-mentioned apparatus improves sample surface
Irradiate uniformity, but the integral illumination efficiency of measuring device is very low, in the deeper sample surfaces feature measurement of color
Biggish measurement error can be introduced, there are biggish limitations at practical application.
[summary of the invention]
In view of the deficiencies in the prior art, the utility model is intended to provide a kind of color measuring device, is set by innovative optics
Meter scheme, so that on the one hand colour photometer may insure the photograph of sample surfaces while meeting predetermined angular illumination geometrical condition
Penetrate uniformity, on the other hand can also improve the illumination efficiency of colour photometer entirety, highly ensure sample tests accuracy and
Repeatability is widely used in the surface optical characteristics measurement of various types object.
The utility model can be achieved through the following technical solutions, a kind of color measuring device, including lighting device and optics are surveyed
Measure device, which is characterized in that the lighting device includes the lighting source of integrating sphere, one or more, wherein the photograph
Mingguang City source is set to inside integrating sphere；Lighting window is equipped in the integrating sphere bottom；The part direct light of the lighting source
It is directly emitted by lighting window and illuminates sample surface；The light of sample surface reflection is then filled by the optical measurement
Set reception.
Utility model device is set by the way that one or more lighting source is arranged in integrating sphere in integrating sphere bottom
Lighting window is set, and a part of light that the setting of lighting window may make lighting source to be directly emitted directly is gone out by lighting window
It penetrates, and then is radiated on sample surface, improve device illumination light source in the illumination efficiency of sample surfaces；The utility model
Described in lighting source direct light refer to without integrating sphere inner wall reflect light；Pass through illumination in the utility model
The size of window and position, which are arranged, can be achieved accurately controlling for irradiating angle (such as 45 ° of illuminations) and irradiation area size,
It is allowed to meet the illumination geometry requirement of standard, realizes the Uniform Illumination of sample surfaces targeted test region.With traditional 45/0 colour examining
Equipment is compared, and the emergent light of the lighting source of utility model device reflects without integrating sphere inner wall but directly passes through integral
The lighting window of ball bottom shines directly into sample surfaces, greatly improves the illumination efficiency of equipment, for improving sample
The sensitivity and accuracy of surface optical characteristics measurement and repeated important in inhibiting, the measurement of especially dark sample.
The utility model is widely used in the measurement of sample surfaces optical characteristics.
The utility model can be further limited and be illustrated with technical characteristic by the following technical programs:
As a kind of technical solution, the lighting source is arranged in integrating sphere with circular pattern at equal intervals, and each
Lighting source exposes to sample test zone surface with identical incidence angle.Lighting source is two or two in this programme
More than, and lighting source is equiangularly spaced in integrating sphere and arranges in a ring, and each lighting source is with identical incidence angle
Expose to sample test zone surface.The mode of annular cloth lamp can eliminate the beam-shaping effect of test, survey for improving
The repdocutbility of examination.
As a kind of technical solution, the integrating sphere is integral hemisphere；The setting that hemisphere is integrated in this programme can contract
The volume of skinny device；Integrating sphere inner wall described in the utility model is coated with the diffusing reflection coating of high reflectance, illumination
A part of light source transmitting directly emergent light by the lighting window of integrating sphere bottom and with defined illumination angle direct irradiation extremely
On sample, and the rest part light that lighting source issues can obtain full and uniform light mixing in integrating sphere.
As a kind of technical solution, the lighting window and lighting source are corresponded；In the present solution, by each illumination
A part of direct light of light source outgoing is directly emitted by corresponding lighting window, and then illuminates sample surface；Lighting source
Cooperation with lighting window is so that light source emergent light irradiates sample with specified angle；
As a kind of embodiment of above scheme, the quantity of lighting source and lighting window is one；Lighting source
A part of direct light be directly emitted by lighting window and illuminate sample surface；
As a kind of embodiment of above scheme, the quantity of lighting source quantity and lighting window is two；Each
The part direct light of lighting source is emitted by corresponding lighting window respectively and illuminates sample surface；
As a kind of embodiment of above scheme, lighting source and lighting window quantity are three or more, Mei Gezhao
The part direct light in Mingguang City source is directly emitted by corresponding lighting window and illuminates sample surface；Preferably, described
Lighting source and lighting window are arranged at circumference or cyclization band is arranged.
As a kind of technical solution, monitoring window is additionally provided on the integrating sphere ball wall, and in the monitoring window pair
The emitting light path answered is equipped with optical monitoring device.The some light incidence integrating sphere ball wall that light source is launched in this programme, and
It is uniformly mixed after multiple reflections in ball, and then is entered in optical monitoring device by the monitoring window on integrating sphere ball wall, used
In the fluctuation of monitoring, illumination light source, the test repeatability of test macro is improved.
Preferably, the optical monitoring device is photometric detector or spectral measurement device；Wherein photometric detection
Device includes but is not limited to photocell, photodiode, photomultiplier tube PMT, has very fast response speed, convenient for inspection in real time
Survey the light output variation of lighting source.In addition, spectral measurement device can also be used for the monitoring of integrating sphere intraoral illumination light source light beats
Equipment can detecte the light source fluctuation under each wavelength by spectral measurement device, provides more accurate light source monitoring, mentions
Rise measurement reproducibility.
As a kind of technical solution, be equipped at the lighting window and/or monitoring window of the integrating sphere one and with
On diaphragm.Diaphragm setting at lighting window ensures that the emergent ray of lighting window is tested with certain width of light beam incidence
Sample surfaces, such as 10 ° of width of light beam, and shield other stray lights；The setting of diaphragm ensures to enter optics at monitoring window
The light of monitoring device is the light after the multiple diffusing reflection of integrating sphere inner wall, prevents the direct light of lighting source from entering optics prison
Survey device.
As a kind of technical solution, the lighting source includes but is not limited to LED light source and/or tungsten halogen lamp.In this programme
Lighting source can be one of white light LEDs, the color LED of various wavelength, ultraviolet LED, tungsten halogen lamp or multiple combinations.Pass through
The combination of multiple lighting sources, its object is to required spectral region is provided for test sample.Under normal circumstances, lighting source
The measurement wave band of 380-780nm visible waveband should be covered, special measurement occasion is tested such as fluorescent material and needed, also settable purple
External radiation light source (such as ultraviolet LED)；Preferably, when selecting colored LED light source, the LED light source of the same color
It is symmetrically placed about integrating sphere bottom centre normal.
The lighting source can be adjusted by current or voltage and realize output light intensity as a preferred embodiment of the above solution,
It adjusts, and each lighting source can individually regulate and control；The light intensity of specially each LED light source and/or tungsten halogen lamp is independently adjustable.
As a kind of technical solution, optical axis and the sample test zone centre of surface normal of the lighting source are in
45°.Lighting source to the optical axis of the illumination beam of sample with sample centre of surface is at 45 ° exposes to sample table
Face, and then realize 45 ° of directional lightings.
As a kind of technical solution, the optical measuring device is arranged in sample test zone centre of surface normal
0 ° of direction, the optical measuring device receive the reflected light in 0 ° of direction.
As a kind of technical solution, it is equipped with coupled lens between sample and the optical measuring device, is tested
The reflected light of sample surfaces is coupled to the light input end of optical measuring device by coupled lens.In the technical program, detected sample
The reflection light on product surface is coupled to the light input end of optical measuring device, herein, optical measuring device by coupled lens
Light input end is entrance slit or optic fibre input end.
As a kind of technical solution, which is characterized in that further include being shone for the second of the measurement of sample surface gloss
Bright device and the second optical measuring device.Pass through the equipment of the second lighting device and the second optical measuring device, the utility model
It can also be achieved the measurement of sample surface gloss；The quantity of second lighting device described in this programme is one or one
More than, the second different lighting devices exposes to sample surface with different illumination angles, and wherein illumination angle is to include but not
It is limited to 20 °, 60 ° and 85 °, the corresponding normal mirror with the second lighting device relative sample measured zone of the second optical measuring device
Face is symmetrical arranged.
As an implementation, second lighting device includes the second lighting source and collimation lens, described
Second optical measuring device is photometric detector, and convergent lens is equipped between sample and the second optical measuring device；
The light of the second lighting source transmitting becomes directional light after collimation lens and then exposes to sample surface, by quilt
The reflected light on sample surface receives after convergent lens and then by the second optical measuring device.
[Detailed description of the invention]
Attached drawing 1 is the schematic diagram of the present apparatus in embodiment 1；
Attached drawing 2 is the schematic diagram of integrating sphere soffit lighting window in embodiment 1；
Attached drawing 3 is the perspective cross section schematic diagram of the present apparatus in embodiment 1；
Attached drawing 4 is the schematic diagram of 2 present apparatus of embodiment；
1-lighting device；1-1-integrating sphere；1-1-1-lighting window；1-1-2-monitoring window；1-2-illumination light
Source；2-optical measuring devices；3-optical monitoring devices；4-coupled lens；5-diaphragms;6-the second lighting device；6-1—
Second lighting source；6-2-collimation lens；7-the second optical measuring device, 8- convergent lens.
[specific embodiment]
Embodiment 1
As shown in Figure 1, 2, 3, this implementation discloses a kind of color measuring device, including lighting device 1 and optical measuring device 2,
It is characterized in that, the lighting device 1 includes integrating sphere 1-1 and is arranged on integrating sphere 1-1 inner wall equipped with eight lighting sources
1-2, and the lighting source 1-2 circumferentially arranges；One or more and lighting source are equipped in the bottom the integrating sphere 1-1
The one-to-one eight lighting window 1-1-1 of 1-2；The light that the lighting source 1-2 is issued passes through corresponding illumination
Window 1-1-1 direct irradiation is on sample surface, and the optical axis of each lighting source 1-2 and sample test zone center
Normal is in 45 °；At the same time, coupled lens are additionally provided on the reflected light path in 0 ° of direction of sample test zone centre normal
4 and optical measuring device 2, sample test zone surface 0 ° of direction reflection light through one after coupled lens 4
The optical receiving end for being coupled to the optical measuring device 2 carries out realization optical measurement；In addition, on the ball wall of integrating sphere 1-1
It is additionally provided with monitoring window 1-1-2, and is equipped with optical monitoring device 3 on the corresponding emitting light path of monitoring window 1-1-2, for accumulating
Light variation in bulb separation 1-1, and then for being modified to test result；In the present embodiment, the optical measuring device 2 is
Spectral measurement device；The optical monitoring device 3 is photometric detector；The integrating sphere 1-1 is integral hemisphere；Described
Lighting source 1-2 is by a ultraviolet LED, two red-light LEDs, two green light LEDs, two blue-ray LEDs and a tungsten halogen lamp structure
At spectrum has uniform Energy distribution in visible light wave range.
Embodiment 2
As shown in figure 4, the present embodiment discloses a kind of color measuring device, including lighting device 1 and optical measuring device 2, it is described
Lighting device 1 include integrating sphere 1-1 and be arranged on integrating sphere 1-1 inner wall and be equipped with 16 lighting source 1-2, and it is described
Lighting source 1-2 circumferentially arranges；One or more is equipped in the bottom the integrating sphere 1-1 to correspond with lighting source 1-2
16 lighting window 1-1-1；The light that the lighting source 1-2 is issued passes through corresponding lighting window 1-1-1
Direct irradiation is on sample surface, and the optical axis of each lighting source 1-2 is in sample test zone centre normal
45°；At the same time, coupled lens 4 and light are additionally provided on the reflected light path in 0 ° of direction of sample test zone centre normal
Measuring device 2 is learned, reflection light of the sample test zone surface in 0 ° of direction is coupled to after coupled lens 4 through one
The optical receiving end of the optical measuring device 2 carries out realization optical measurement；In addition, being additionally provided on the ball wall of integrating sphere 1-1
Window 1-1-2 is monitored, and is equipped with optical monitoring device 3 on the corresponding emitting light path of monitoring window 1-1-2, is used to integrating sphere 1-
Light variation in 1, and then for being modified to test result；In the present embodiment, the optical measuring device 2 is spectrum survey
Measure device；The optical monitoring device 3 is photometric detector；The integrating sphere 1-1 is integral hemisphere；The illumination light
Source 1-2 is made of 16 LED light sources with different emission, and composition spectrum can cover the spectrum model of 380-780nm
It encloses；
In addition, it is being additionally provided with the second lighting device 6 measured to sample surface gloss in the present embodiment, and
Second lighting device 6 includes the second lighting source 6-1 and collimation lens 6-2, the light warp that the second lighting source issues
It crosses after collimation lens 6-2 and exposes to sample surface with 60 ° of directional lights, and then the reflection light on sample surface is by second
Optical measuring device 7 receives measurement, wherein second optical measuring device 7 is photometric detector.
It is emphasized that the above is only the preferred embodiment of the present utility model, not the utility model is appointed
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of color measuring device, including lighting device (1) and optical measuring device (2), which is characterized in that the lighting device
It (1) include the lighting source (1-2) of integrating sphere (1-1) and one or more, wherein the lighting source (1-2) is set to product
Bulb separation (1-1) is internal；Lighting window (1-1-1) is equipped in the integrating sphere bottom (1-1)；The one of the lighting source (1-2)
Part direct light is directly emitted by lighting window (1-1-1) and illuminates sample surface；The light of sample surface reflection
It is received by the optical measuring device (2).
2. color measuring device as described in claim 1, which is characterized in that the lighting source (1-2) is in integrating sphere (1-1)
With the arrangement of circular pattern at equal intervals, and each lighting source (1-2) exposes to sample test zone with identical incidence angle
Surface.
3. color measuring device as claimed in claim 2, which is characterized in that the lighting window (1-1) and lighting source (1-
2) it is arranged in a one-to-one correspondence.
4. the color measuring device as described in any one of claim 1,2,3, which is characterized in that described integrating sphere (1-1) ball
It is additionally provided with monitoring window (1-1-2) on wall, and is equipped with optical monitoring device on the emitting light path of monitoring window (1-1-2)
(3).
5. the color measuring device as described in any one of claim 1,2,3, which is characterized in that the integrating sphere (1-1) is
Integrate hemisphere.
6. the color measuring device as described in any one of claim 1,2,3, which is characterized in that lighting source (1-2) packet
Include but be not limited to LED light source, tungsten halogen lamp.
7. the color measuring device as described in any one of claim 1,2,3, which is characterized in that the lighting source (1-2)
Optical axis and sample test zone centre normal be in 45 °；Optical measuring device (2) setting is tested in sample
Regional center normal direction.
8. color measuring device as claimed in claim 7, which is characterized in that in sample and the optical measuring device (2)
Between be equipped with coupled lens (4), the reflected light on sample surface is coupled to optical measuring device (2) by coupled lens (4)
Light input end.
9. color measuring device as claimed in claim 4, which is characterized in that in the lighting window (1- of the integrating sphere (1-1)
1-1) and/or at monitoring window (1-1-2) it is equipped with one or more diaphragm (5).
10. the color measuring device as described in any one of claim 1,2,3, which is characterized in that further include for sample
The second lighting device (6) and the second optical measuring device (7) of surface gloss measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821912555.3U CN209117182U (en) | 2018-11-20 | 2018-11-20 | A kind of color measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821912555.3U CN209117182U (en) | 2018-11-20 | 2018-11-20 | A kind of color measuring device |
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| Publication Number | Publication Date |
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| CN209117182U true CN209117182U (en) | 2019-07-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896501A (en) * | 2020-08-05 | 2020-11-06 | 曲阜师范大学 | A kind of spectral measurement system and method based on cross polarization |
| CN113687504A (en) * | 2021-09-03 | 2021-11-23 | 浙江理工大学绍兴柯桥研究院有限公司 | Uniform lighting device for observing tiny objects and using method thereof |
| EP4286808A1 (en) * | 2022-05-30 | 2023-12-06 | Yokogawa Electric Corporation | Colorimeter and chromaticity measurement method |
-
2018
- 2018-11-20 CN CN201821912555.3U patent/CN209117182U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896501A (en) * | 2020-08-05 | 2020-11-06 | 曲阜师范大学 | A kind of spectral measurement system and method based on cross polarization |
| CN111896501B (en) * | 2020-08-05 | 2023-07-21 | 曲阜师范大学 | A Spectral Measurement System and Method Based on Cross Polarization |
| CN113687504A (en) * | 2021-09-03 | 2021-11-23 | 浙江理工大学绍兴柯桥研究院有限公司 | Uniform lighting device for observing tiny objects and using method thereof |
| EP4286808A1 (en) * | 2022-05-30 | 2023-12-06 | Yokogawa Electric Corporation | Colorimeter and chromaticity measurement method |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: EVERFINE PHOTO-E-INFO Co.,Ltd. Assignor: EVERFINE PHOTO-E-INFO Co.,Ltd. Contract record no.: X2021330000140 Denomination of utility model: A color measuring device Granted publication date: 20190716 License type: Common License Record date: 20210826 |
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