CN105938016A - Color measurement apparatus - Google Patents
Color measurement apparatus Download PDFInfo
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- CN105938016A CN105938016A CN201610389533.2A CN201610389533A CN105938016A CN 105938016 A CN105938016 A CN 105938016A CN 201610389533 A CN201610389533 A CN 201610389533A CN 105938016 A CN105938016 A CN 105938016A
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- led
- halogen tungsten
- tungsten lamp
- measuring device
- integrating sphere
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- 238000005259 measurement Methods 0.000 title claims abstract description 41
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 66
- 150000002367 halogens Chemical class 0.000 claims abstract description 66
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 65
- 239000010937 tungsten Substances 0.000 claims abstract description 65
- 238000005286 illumination Methods 0.000 claims abstract description 40
- 230000003595 spectral effect Effects 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 229910052724 xenon Inorganic materials 0.000 description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 241001025261 Neoraja caerulea Species 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0251—Colorimeters making use of an integrating sphere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a color measurement apparatus. The color measurement apparatus comprises an integrating sphere, an illumination apparatus and an optical measurement apparatus, and is characterized in that the illumination apparatus comprises one or more halogen tungsten lamp illumination units taking halogen tungsten lamps as light emitting sources and one or more LED illumination units taking LED light sources as light emitting sources. The spherical wall of the integrating sphere is provided with one or more illumination windows, and light emitted from the halogen tungsten lamp illumination units and the LED illumination units is incident to the integrating sphere through the same illumination window or different illumination windows. According to the invention, through combining the LED light sources with the halogen tungsten lamps, a spectrum from within an UV scope to an infrared large-wave-band scope is enabled to have sufficient spectral energy distribution, spectrum structure design of illumination light is also facilitated, the spectrum demands for color measurement of various samples are greatly satisfied, and the color measurement apparatus has the advantages of simple operation, flexibility, adjustability and low loss.
Description
Technical field
The present invention relates to object color fields of measurement, be specifically related to a kind of color measuring device.
Background technology
Along with developing rapidly of modern industry, color, spectral reflectivity etc. become the important indicator weighing physical surface characteristics.What object color was measured it is critical only that the measurement to body surface reflection light.The color measuring device being most frequently with at present is spectrophotometric color measurement instrument.Spectrophotometric color measurement instrument generally uses integrating sphere to provide general diffused lighting condition, and use D/0, D/8, the geometrical condition such as 45 °/0 to measure, first the light sent by light source is radiated on sample, and then received by detector array and to come from the reflection light on sample surface, by reflection light is carried out spectral measurement and analysis and then obtains the color parameters such as tristimulus values.
The spectral distribution of lighting source is most important for realizing accurately measuring of object color characteristic.The spectrophotometric color measurement instrument many employings halogen tungsten lamp used at present or xenon lamp are as lighting source.Wherein, the advantage of halogen tungsten lamp is that output spectrum is very smooth, spectral line without fracture, and stability is high；But, it is relative the most weak with ultraviolet waves segmentation Energy distribution that Halogen lamp spectrum is distributed in shortwave, and therefore, in the measurement of shortwave part, signal to noise ratio is relatively low, measurement reproducibility is poor；In the measurement relate to fluorescent material, halogen tungsten lamp can not provide required ultraviolet spectra simultaneously.Use xenon lamp to be advantageous in that xenon source has good spectral power distribution in the spectral region of visible ray and ultraviolet as testing light source, but, the power consumption of xenon flash lamp compared with big, the life-span is relatively low.
In order to overcome above-mentioned technological deficiency, CN104501960 A discloses a kind of spectrophotometric color measurement instrument based on LED light source and its implementation, the program abandons the illumination scheme of simple halogen tungsten lamp or xenon lamp completely, then use life-span length, respond the newly selected as Lighting Design of LED light source fast, low in energy consumption, and it is combined achieving by 8 LED light sources there is in visible light wave range the uniform and spectral distribution of abundance.But in actual application, in the range of red spectral band, the spectral energy relative deficiency of LED, and characteristic wavelength is the most relatively difficult in monochromatic LED the most relatively rareness, the making of more than 660nm, therefore, in practical operation, only produced by LED combination mode that to have the spectral distribution of sufficient HONGGUANG and infrared band relatively difficult, and cost is of a relatively high, therefore requiring in higher measurement to infrared and infrared spectrum, the illumination scheme in CN104501960 A is often because of the problem that signal to noise ratio is poorer than relatively low duplicating property.
Summary of the invention
For the deficiencies in the prior art, the technical problem to be solved is how to carry out having in suitable Lighting Design makes output spectrum on a large scale good spectral power distribution in integrating sphere, and meets the spectrum demand needed for various sample is measured.
The present invention is achieved through the following technical solutions:
A kind of color measuring device, including integrating sphere, illuminator and optical measuring device, it is characterised in that: described illuminator include one or more by halogen tungsten lamp as light source halogen tungsten lamp lighting unit and one or more by LED as the LED illumination unit of light source；Described integrating sphere ball wall is provided with one or more lighting window, and the light sent from halogen tungsten lamp lighting unit and LED illumination unit is incided in integrating sphere by same lighting window or different lighting window；Being additionally provided with the sampling window for gathering sample signal and measurement window on described integrating sphere, measurement window is positioned at the direction near the normal of sampling window；Described optical measuring device is arranged on the emitting light path of measurement window.
The lighting system that in the present invention, the employing halogen tungsten lamp of novelty is combined with LED light source, achieve the spectral power distribution in ultraviolet to infrared big wavelength band with abundance, and whole illuminator has energy consumption adjustable feature low, easy to operate, flexible, meet the lighting demand of various material color test, can be widely applied in color parameter and the reflectivity Characteristics measurement of various material.
The present invention can also limit and perfect the most further:
As a kind of technical scheme, described measurement window is located off the position of sampling window normal direction 8 °.The technical program uses wide variety of CIE D/8 measure geometry in color measuring, the i.e. direction at deviation sampling window 8 ° to arrange measurement window and receive the reflection light from sample surface.
As a kind of technical scheme, described halogen tungsten lamp lighting unit also includes the light filter changing the spectral power distribution of halogen tungsten lamp and the halogen tungsten lamp driving means powered for halogen tungsten lamp.The employing of light filter may filter that and sample color measuring is produced unwanted spectral component in interference or sample color measuring；Halogen tungsten lamp driving means can be that halogen tungsten lamp is powered.
Preferred as technique scheme, also includes the light modulating device that can regulate the luminous intensity of halogen tungsten lamp in described halogen tungsten lamp driving means.Light modulating device in halogen tungsten lamp driving means can need to regulate the luminous intensity of halogen tungsten lamp according to actual illumination, and then provides the lighting environment of high-quality.
As a kind of technical scheme, described LED includes but not limited to ultraviolet LED, color LED and/or white light LEDs.
As a kind of technical scheme, described LED illumination unit also includes LED drive device, and each LED light source is independently powered by described LED drive device；Or described LED drive device is to multiple LED light source centrally connected power supplies.LED illumination unit, in addition to comprising LED light source, also comprises LED drive device；As required, each LED light source can independently be powered by described LED drive device, or to multiple LED light source centrally connected power supplies.
Preferred as technique scheme, described LED drive device includes the light modulating device that can regulate LED luminous intensity.The flexible to LED luminous intensity can be realized by light modulating device.
As a kind of technical scheme, including multiple lighting windows, and these lighting windows are arranged at position symmetrical relative to sampling window centre normal on integrating sphere ball wall.
As preferably, described integrating sphere is additionally provided with the special corresponding ultraviolet incidence window with ultraviolet LED, and on described ultraviolet incidence window, is additionally provided with the diaphragm of regulation incident uv flux.In to ultraviolet spectra, some require that higher sample is measured, as at fluorescent samples, in order to ensure suitable signal value, by the size of regulation diaphragm and then the amount of incident luminous flux of ultraviolet light can be controlled and regulates.
As a kind of technical scheme, described integrating sphere is additionally provided with the reference channel of detection integrating sphere intraoral illumination condition.The setting of reference channel is used to monitor the change of integrating sphere intraoral illumination condition (such as spectrum, brightness etc.)；The measurement apparatus of described reference channel is spectral measurement device.Preferably, the baffle plate preventing shining directly into reference channel position from the reflection light on sample surface and the light that sends from illuminator it is additionally provided with in described integrating sphere.
As a kind of technical scheme, described optical receiver assembly includes spectral radiometer.Spectral radiometer can be used to measure the Spectral power distribution data of sample reflection light, provides foundation, and zero mismatch for analyzing spectral reflectivity and the color parameter etc. of sample, and certainty of measurement is high.
In sum, the invention discloses a kind of color measuring device, by the way of halogen tungsten lamp is combined with LED light source, achieve and in infrared big wavelength band, there is relatively uniform and sufficient spectral power distribution from ultraviolet, meet various object color measurement demand, and halogen tungsten lamp and the equal scalable of LED light source luminous intensity, easy and simple to handle, can be widely applied to during the color characteristics of various material measures.
[accompanying drawing explanation]
Accompanying drawing 1 is apparatus of the present invention schematic diagram in embodiment 1
Accompanying drawing 2 is illuminator schematic diagram in embodiment 1
Accompanying drawing 3 is apparatus of the present invention schematic diagram in embodiment 2
Accompanying drawing 4 is illuminator schematic diagram in embodiment 2
Accompanying drawing 5 is apparatus of the present invention schematic diagram in embodiment 3
Accompanying drawing 6 is illuminator schematic diagram in embodiment 3
1-integrating sphere；1-1 lighting window；1-2 sampling window；1-3 measurement window；1-4 ultraviolet incidence window；2-illuminator；2-1 halogen tungsten lamp lighting unit；2-2 LED illumination unit；2-1-1 halogen tungsten lamp； 2-2-1 LED；3-optical measuring device；4-reference channel；Baffle plate-5；
[detailed description of the invention]
Embodiment 1
As illustrated in fig. 1 and 2, present embodiment discloses a kind of color measuring device, including integrating sphere 1, illuminator 2 and optical measuring device 3, reference channel 4, baffle plate 5；Being provided with a lighting window 1-1 on integrating sphere 1 ball wall, described illuminator 2 is arranged at lighting window 1-1；It is provided with the sampling window 1-2 for gathering sample signal bottom integrating sphere 1, directly sample is positioned over during test at sampling window 1-2 and can start to measure；The position deviateing 8 ° of sampling window 1-2 centre normal direction on integrating sphere 1 ball wall is provided with measurement window 1-3, and is provided with optical measuring device 3 at the emitting light path of measurement window 1-3, and wherein the optical detection element of optical measuring device 3 is spectral radiometer；In addition, integrating sphere 1 is additionally provided with special reference channel 4 to be integrated the monitoring of ball 1 intraoral illumination condition, comprises spectral radiometer in reference channel 4；Be additionally provided with baffle plate 5 in integrating sphere 1, be used for preventing the light direct irradiation sent of illuminator 2 in sample position, and prevent from the reflection light on sample surface and from the light direct irradiation of illuminator 2 at reference channel 4.
Illuminator 2 in this scheme includes a halogen tungsten lamp lighting unit 2-1 and LED illumination unit 2-2.Wherein, halogen tungsten lamp lighting unit 2-1 include halogen tungsten lamp 2-1-1, light filter and and halogen tungsten lamp driving means, wherein light filter can change the spectral power distribution of halogen tungsten lamp 2-1-1, and halogen tungsten lamp driving means is possible not only to power for halogen tungsten lamp 2-1-1, but also comprise the light modulating device that halogen tungsten lamp 2-1-1 is carried out luminous intensity regulation；Halogen tungsten lamp 2-1-1 herein is halogen tungsten lamp.Secondly, LED illumination unit 2-2 includes LED 2-2-1 and LED illumination driving means, and all LED are powered and also include the light modulating device being adjusted the luminous intensity of LED2-2-1 by LED drive device.LED herein includes a ultraviolet LED, a blue-ray LED and a green light LED.In test process, the light sent by lighting unit 2-1 and lighting unit 2-2 carries out abundant mixed light in entering into integrating sphere 1 by lighting window 1-1, and it is radiated at sample surface, further, the reflection light from sample surface passes through measurement window 1-3 of integrating sphere 1 finally by received by optical measuring device 3.
Embodiment 2
As shown in Figures 3 and 4, the open a kind of color measuring device of the present invention, including integrating sphere 1, illuminator 2 and optical measuring device 3；Two lighting windows (1-1) are set on the ball wall of described integrating sphere 1 both sides, and bottom integrating sphere 1, it being provided with the sampling window (1-2) for gathering sample signal, two of which lighting window (1-1) is symmetrical arranged about the centre normal of sampling window (1-2)；The position deviateing sampling window 1-2 normal direction 8 ° on integrating sphere 1 ball wall is provided with measurement window 1-3, and is provided with optical measuring device 3 at the emitting light path of measurement window 1-3, and wherein the optical detection element of optical measuring device 3 is spectral radiometer；In addition, integrating sphere 1 is additionally provided with special reference channel 4 to be integrated the monitoring of ball 1 intraoral illumination condition, comprises spectral radiometer in reference channel 4；Be additionally provided with baffle plate 5 in integrating sphere 1, be used for preventing the light direct irradiation sent of illuminator 2 in sample position, and prevent from the reflection light on sample surface and from the light direct irradiation of illuminator 2 at reference channel 4.
In this scheme, illuminator 2 includes halogen tungsten lamp lighting unit 2-1 and LED illumination unit 2-2, and is separately positioned on two lighting window (1-1) places；Wherein halogen tungsten lamp lighting unit 2-1 include halogen tungsten lamp 2-1-1, light filter and and halogen tungsten lamp driving means, wherein light filter can change the spectral power distribution of halogen tungsten lamp 2-1-1, and halogen tungsten lamp driving means is possible not only to power for halogen tungsten lamp 2-1-1, but also comprise the light modulating device that halogen tungsten lamp 2-1-1 is carried out luminous intensity regulation；Halogen tungsten lamp 2-1-1 herein is halogen tungsten lamp.Secondly, LED illumination unit 2-2 includes LED 2-2-1 and LED illumination driving means, LED herein includes a ultraviolet LED, one blue-ray LED and a green light LED, and each LED is independently-powered by the LED drive device of its correspondence, and LED drive device also comprises the light modulating device that the luminous intensity to LED is adjusted.In reality is tested, the light sent by lighting unit 2-1 and lighting unit 2-2 carries out abundant mixed light in entering into integrating sphere 1 by two lighting window 1-1 respectively, and it is radiated at sample surface, further, the reflection light from sample surface passes through measurement window 1-3 of integrating sphere 1 finally by received by optical measuring device 3.
Embodiment 3
As it can be seen in figures 5 and 6, the open a kind of color measuring device of the present invention, including integrating sphere 1, illuminator 2 and optical measuring device 3；Integrating sphere 1 ball wall is provided with two lighting window 1-1, and is additionally provided with the sampling window 1-2 for gathering sample signal bottom integrating sphere 1, and two of which lighting window 1-1 is symmetrical arranged about the normal direction of sampling window 1-2；It is additionally provided with a ultraviolet incidence window 1-4 on integrating sphere 1 ball wall, and at ultraviolet incidence window 1-4, is provided with the diaphragm entering light quantity for regulating ultraviolet light；The position deviateing sampling window 1-2 normal direction 8 ° on integrating sphere 1 ball wall is provided with measurement window 1-3, and is provided with optical measuring device 3 at the emitting light path of measurement window 1-3, and wherein the optical detection element of optical measuring device 3 is spectral radiometer；In addition, integrating sphere 1 is additionally provided with special reference channel 4 to be integrated the monitoring of ball 1 intraoral illumination condition, comprises spectral radiometer in reference channel 4；In order to prevent the reflection light from sample surface and the light direct irradiation from illuminator 2 at reference channel 4, in integrating sphere, it is additionally provided with baffle plate.Be additionally provided with baffle plate 5 in integrating sphere 1, be used for preventing the light direct irradiation sent of illuminator 2 in sample position, and prevent from the reflection light on sample surface and from the light direct irradiation of illuminator 2 at reference channel 4.
In this scheme, illuminator 2 includes halogen tungsten lamp lighting unit 2-1 and two LED illumination unit 2-2；Wherein halogen tungsten lamp lighting unit 2-1 is arranged at a lighting window 1-1, and halogen tungsten lamp lighting unit 2-1 includes halogen tungsten lamp 2-1-1 and halogen tungsten lamp driving means, halogen tungsten lamp driving means is possible not only to power for halogen tungsten lamp 2-1-1, but also comprises the light modulating device that halogen tungsten lamp 2-1-1 carries out luminous intensity regulation；Halogen tungsten lamp 2-1-1 herein is halogen tungsten lamp,.Secondly, one of them LED illumination unit 2-2 includes LED 2-2-1 and LED illumination driving means, and LED herein is a white light LEDs, and by LED drive device to its power supply and light modulation, this LED illumination unit 2-2 is arranged at another lighting window 1-1；Another LED illumination unit 2-2 includes a ultraviolet LED and corresponding LED illumination driving means, and is arranged at ultraviolet incidence window 1-4, and LED illumination driving means can realize power supply supply and the intensity adjustments of ultraviolet LED.
In reality is tested, the light sent by lighting unit 2-1 and two lighting unit 2-2 carries out abundant mixed light in entering into integrating sphere 1 by two lighting window 1-1 respectively, and it is radiated at sample surface, further, the reflection light from sample surface passes through measurement window 1-3 of integrating sphere 1 finally by received by optical measuring device 3；
Above in association with accompanying drawing, the detailed description of the invention of the present invention is described; but these explanations can not be considered as limiting the scope of the present invention; protection scope of the present invention is to be further defined by by appended claims, and any change on the basis of the claims in the present invention is all protection scope of the present invention.
Claims (10)
1. a color measuring device, including integrating sphere (1), illuminator (2) and optical measuring device (3), it is characterised in that: described illuminator (2) include one or more by halogen tungsten lamp (2-1-1) as the halogen tungsten lamp lighting unit (2-1) of light source and one or more by LED(2-2-1) as the LED illumination unit (2-2) of light source；Described integrating sphere (1) ball wall is provided with one or more lighting window (1-1), and the light sent from halogen tungsten lamp lighting unit (2-1) and LED illumination unit (2-2) is incided in integrating sphere (1) by same lighting window (1-1) or different lighting window (1-1)；Being additionally provided with the sampling window (1-2) for gathering sample signal and measurement window (1-3) on described integrating sphere (1), measurement window (1-3) is positioned at the direction near the normal of sampling window (1-2)；Described optical measuring device (3) is arranged on the emitting light path of measurement window (1-3).
2. color measuring device as claimed in claim 1, it is characterised in that described measurement window (1-3) is located off the position in 8 ° of sampling window (1-2) centre normal direction.
3. color measuring device as claimed in claim 1 or 2, it is characterised in that described halogen tungsten lamp lighting unit (2-1) also includes the light filter changing the spectral power distribution of halogen tungsten lamp (2-1-1) and the halogen tungsten lamp driving means powered for halogen tungsten lamp (2-1-1).
4. color measuring device as claimed in claim 3, it is characterised in that described halogen tungsten lamp driving means includes the light modulating device that can regulate the luminous intensity of halogen tungsten lamp (2-1-1).
5. color measuring device as claimed in claim 1 or 2, it is characterised in that described LED(2-2-1) include but not limited to ultraviolet LED, color LED and white light LEDs.
6. color measuring device as claimed in claim 1 or 2, it is characterised in that described LED illumination unit (2-2) also includes LED drive device, and described LED drive device is to each LED(2-2-1) independently power；Or described LED drive device is to multiple LED(2-2-1) power supply.
7. color measuring device as claimed in claim 6, it is characterised in that LED drive device includes the light modulating device that can regulate the luminous intensity of LED light source (2-2-1).
8. color measuring device as claimed in claim 1, it is characterised in that include multiple lighting window (1-1), and these lighting windows (1-1) are arranged at position symmetrical relative to sampling window (1-2) normal on integrating sphere (1) ball wall.
9. color measuring device as claimed in claim 1, it is characterised in that be additionally provided with the reference channel (4) of monitoring integrating sphere (1) intraoral illumination condition in described integrating sphere (1).
10. color measuring device as claimed in claim 1, it is characterised in that described optical measuring device (3) includes spectral radiometer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610389533.2A CN105938016A (en) | 2016-06-02 | 2016-06-02 | Color measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610389533.2A CN105938016A (en) | 2016-06-02 | 2016-06-02 | Color measurement apparatus |
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| CN105938016A true CN105938016A (en) | 2016-09-14 |
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| CN106441821A (en) * | 2016-11-30 | 2017-02-22 | 南京华欣分析仪器制造有限公司 | Luminous flux test device using narrow beam light source and test method thereof |
| CN107407628A (en) * | 2015-03-24 | 2017-11-28 | 乌斯特技术股份公司 | LED-based fibre property measurement |
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| CN106441821A (en) * | 2016-11-30 | 2017-02-22 | 南京华欣分析仪器制造有限公司 | Luminous flux test device using narrow beam light source and test method thereof |
| CN106441821B (en) * | 2016-11-30 | 2019-03-26 | 南京华欣分析仪器制造有限公司 | A kind of optical pass testing device and its test method using arrow beam of light light source |
| CN113711009A (en) * | 2019-02-04 | 2021-11-26 | 生命科技控股私人有限公司 | Optical reader and method of analyzing biological sample |
| CN111141387A (en) * | 2020-01-08 | 2020-05-12 | 深圳市林上科技有限公司 | Color measuring instrument and color measuring method |
| CN111551266A (en) * | 2020-05-25 | 2020-08-18 | 吉林求是光谱数据科技有限公司 | Environmental color temperature testing method and system based on multispectral image detection technology |
| CN111551266B (en) * | 2020-05-25 | 2021-01-22 | 吉林求是光谱数据科技有限公司 | Environmental color temperature testing method and system based on multispectral image detection technology |
| CN111879418A (en) * | 2020-08-04 | 2020-11-03 | 中国计量科学研究院 | Infrared detector nonlinear measurement method and measurement device based on luminous flux multiplication method |
| CN111879418B (en) * | 2020-08-04 | 2021-12-28 | 中国计量科学研究院 | Infrared detector nonlinear measurement method and measurement device based on luminous flux multiplication method |
| CN113588080A (en) * | 2021-08-11 | 2021-11-02 | 长春希达电子技术有限公司 | Calibration method of light source spectrum |
| CN113588080B (en) * | 2021-08-11 | 2024-04-02 | 长春希达电子技术有限公司 | Calibration method for light source spectrum |
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