CN108240862A - High-precision self-correcting tristimulus color analysis and chromatic value acquisition method - Google Patents
High-precision self-correcting tristimulus color analysis and chromatic value acquisition method Download PDFInfo
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- CN108240862A CN108240862A CN201810036158.2A CN201810036158A CN108240862A CN 108240862 A CN108240862 A CN 108240862A CN 201810036158 A CN201810036158 A CN 201810036158A CN 108240862 A CN108240862 A CN 108240862A
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- tristimulus values
- tristimulus
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- sensor
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004458 analytical method Methods 0.000 title claims abstract description 19
- 239000008186 active pharmaceutical agent Substances 0.000 claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims abstract description 14
- 238000004611 spectroscopical analysis Methods 0.000 claims abstract description 14
- 230000003595 spectral effect Effects 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000000205 computational method Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims 7
- 230000008901 benefit Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/506—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors measuring the colour produced by screens, monitors, displays or CRTs
-
- 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
- G01J2003/467—Colour computing
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of high-precision self-correcting tristimulus color analysis and chromatic value acquisition methods, and including camera lens, camera lens is connect by optical fiber with spectrometer and tristimulus values sensor respectively, and the spectrometer and the equal messenger line of tristimulus values sensor are connect with DSP;Spectrometer is transmitted to DSP for acquiring spectroscopic data M;Tristimulus values sensor is used to acquire original tristimulus values S transport to DSP;The original tristimulus values S that DSP is used to acquire with tristimulus values sensor after the spectroscopic data M of spectrometer collection is converted carries out operation, correction parameter C is obtained, the original tristimulus values S that tristimulus values sensor acquires is converted to the tristimulus values DS after correction further according to correction parameter C.The technology advantage and disadvantage of integrated spectral instrument colorimeter and tristimulus color analysis of the present invention:While tristimulus color analysis accuracy benefits can be played, the advantages of measuring at a high speed can be also taken into account.
Description
Technical field
The present invention relates to liquid crystal module coloration correcting technology field, in particular to a kind of high-precision self-correcting tristimulus values coloration
Meter and chromatic value acquisition method.
Background technology
Liquid crystal module generates the chromatic value that producer corrects display module by colorimeter or spectrometer.Spectrometer feature is
Speed is slow, and precision is high.Colorimeter is realized usually using tristimulus values sensor.Tristimulus values sensor speed is fast, and precision is relatively low.
The two respectively has an advantage and disadvantage, and the equipment required in practical module production process must possess that speed is fast, advantage with high accuracy.Market
The contradiction between demand and physical device to equipment is apparent.
Invention content
Technical problems based on background technology, the present invention propose a kind of high-precision self-correcting tristimulus color analysis and
Chromatic value acquisition method can correct the three primary colors spectrum parameter of channels all in colorimeter, colorimeter is rapidly completed
Manufacture and periodically correction demand improve colorimeter production and maintenance efficiency and quality.
In order to achieve the above objectives, a kind of high-precision self-correcting tristimulus color analysis that the present invention refers to, special character exist
In including camera lens, the camera lens is connect by optical fiber with spectrometer and tristimulus values sensor respectively, the spectrometer and three thorns
Swash the value equal messenger line of sensor to connect with DSP;
The spectrometer is transmitted to DSP for acquiring spectroscopic data M;
The tristimulus values sensor is used to acquire original tristimulus values S transport to DSP;
The DSP is used for the original acquired after the spectroscopic data M of spectrometer collection is converted with tristimulus values sensor
Beginning tristimulus values S carries out operation, obtains correction parameter C, acquire tristimulus values sensor further according to correction parameter C original three
Values S is converted to the tristimulus values DS after correction.
Further, the tristimulus values sensor include tristimulus values filter plate X Y Z, silicon photo diode, modulus turn
Change circuit.
Further, the optical fiber is one-to-two optical fiber, is sensed with same diameter respectively at spectrometer and tristimulus values
Device connects.
Further, the camera lens is collimating mirror.
A kind of chromatic value acquisition method based on above-mentioned high-precision self-correcting tristimulus color analysis, is characterized in that,
Including initialization procedure and gatherer process, the step of initialization procedure, includes:
1) incident light that liquid crystal module is sent out through camera lens and optical fiber while enters spectrometer and tristimulus values sensor;
2) the spectrometer collection spectroscopic data M, original tristimulus values S transport is extremely during tristimulus values sensor acquisition
DSP;
3) spectroscopic data M is calculated bid by the DSP according to the THE SPECTRAL RESPONSE OF THE HUMAN EYE function XYZ that 1931CIE standards define
Quasi- tristimulus values DE obtains correction parameter C further according to standard tristimulus values DE and original tristimulus values S;
4) DSP corrects the original tristimulus values S that tristimulus values sensor acquires according to correction parameter C, obtains
Tristimulus values DS after to correction;
The step of gatherer process, includes:
5) spectrometer is closed;
6) the original tristimulus values S of continuous acquisition is carried out using the tristimulus values sensor, and gathered data is transmitted to
Continuous original tristimulus values S outputs are the tristimulus values DS after correction by DSP, the DSP.
Preferably, the computational methods of the standard tristimulus values DE are DE=M*XYZ, and XYZ is what 1931CIE standards defined
THE SPECTRAL RESPONSE OF THE HUMAN EYE function;The computational methods of the correction parameter C are C=DE/S, the meter of the tristimulus values DS after the correction
Calculation method is DS=S*C.
The advantage of the invention is that:
1) the technology advantage and disadvantage of integrated spectral instrument colorimeter and tristimulus color analysis of the present invention:Tristimulus values can be played
While colorimeter accuracy benefits, the advantages of measuring at a high speed can be also taken into account;
2) present invention has the accuracy benefits that traditional tristimulus values does not have, and it is excellent to be provided simultaneously with the speed that spectrometer does not have
Gesture, while the existing assembly line wire body for having old tristimulus color analysis can be transformed by this patent, avoid expensive device more
The flat cost of expense newly brought to product has high cost effectiveness.
Description of the drawings
Fig. 1 is a kind of structure diagram of high-precision self-correcting tristimulus color analysis of the present invention.
Fig. 2 is the flow chart of chromatic value acquisition method of the present invention.
In figure:Camera lens 1, optical fiber 2, spectrometer 3, tristimulus values sensor 4, signal wire 5, DSP6.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments, but the embodiment should not be construed as pair
The limitation of the present invention.
The present invention proposes a kind of high-precision self-correcting tristimulus color analysis, and including camera lens 1, camera lens 1 is collimating mirror.Camera lens 1
It is connect respectively with spectrometer 3 and tristimulus values sensor 4 by optical fiber 2, optical fiber 2 is one-to-two optical fiber, is distinguished with same diameter
It is connected in spectrometer 3 and tristimulus values sensor 4.Spectrometer 3 and 4 equal messenger line 5 of tristimulus values sensor are connect with DSP6.
Spectrometer 3 is transmitted to DSP6 for acquiring spectroscopic data.
Tristimulus values sensor 4 is transmitted to DSP6 for acquiring tristimulus values.
DSP6 is used for three thorns acquired after the spectroscopic data that spectrometer 3 acquires is converted with tristimulus values sensor 4
Sharp value is compared, and calculates correction parameter, and the original tristimulus values acquired to tristimulus values sensor 4 is corrected.
Tristimulus values sensor 4 include tristimulus values filter plate X Y Z, silicon photo diode, analog to digital conversion circuit.
The method that chromatic value acquisition is carried out using above-mentioned high-precision self-correcting tristimulus color analysis, as shown in Fig. 2, including just
Beginning process and gatherer process:
The step of initialization procedure, includes:
1) incident light that liquid crystal module is sent out through camera lens 1 and optical fiber 2 while enters spectrometer 3 and tristimulus values sensor 4.
2) spectrometer 3 acquires spectroscopic data M, is transmitted to DSP6.
3) tristimulus values sensor 4 acquires original tristimulus values S transport to DSP6.
4) the THE SPECTRAL RESPONSE OF THE HUMAN EYE function XYZ that spectroscopic data M is defined according to 1931CIE standards is calculated standard three by DSP6
Values DE, DE=M*XYZ obtain correction parameter C, C=DE/S further according to standard tristimulus values DE and original tristimulus values S;
5) DSP6 corrects the original tristimulus values S that tristimulus values sensor 4 acquires according to correction parameter C, obtains
Tristimulus values DS, DS=S*C after correction.
The step of gatherer process, includes:
6) spectrometer 3 is closed;
7) the original tristimulus values S of continuous acquisition is carried out using tristimulus values sensor 4, and gathered data is transmitted to
Continuous original tristimulus values S outputs are the tristimulus values DS after correction by DSP6, DSP6.This step is repeated after screen switching,
Quick measurement can be realized.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited in upper
The specific real mode stated, above-mentioned specific embodiment is only schematical, is not restricted, the common skill of this field
Art personnel are not departing from present inventive concept and scope of the claimed protection under the enlightenment of the present invention, can be with
The specific transformation of many forms is made, these all belong to the scope of protection of the present invention interior.
Claims (6)
1. a kind of high-precision self-correcting tristimulus color analysis, it is characterised in that:Including camera lens (1), the camera lens (1) passes through optical fiber
(2) it is connect respectively with spectrometer (3) and tristimulus values sensor (4), the spectrometer (3) and tristimulus values sensor (4) are equal
Messenger line (5) is connect with DSP (6);
The spectrometer (3) is transmitted to DSP (6) for acquiring spectroscopic data M;
The tristimulus values sensor (4) is for acquiring original tristimulus values S transport to DSP (6);
Spectroscopic data M of the DSP (6) for spectrometer (3) to be acquired is acquired after being converted with tristimulus values sensor (4)
Original tristimulus values S carry out operation, obtain correction parameter C, further according to correction parameter C by tristimulus values sensor (4) acquire
Original tristimulus values S be converted to correction after tristimulus values DS.
2. high-precision self-correcting tristimulus color analysis according to claim 1, it is characterised in that:The tristimulus values sensing
Device (4) including tristimulus values filter plate X Y Z, silicon photo diode, analog to digital conversion circuit.
3. high-precision self-correcting tristimulus color analysis according to claim 1, it is characterised in that:The optical fiber (2) is one
Divide two optical fiber, connected with same diameter respectively at spectrometer (3) and tristimulus values sensor (4).
4. high-precision self-correcting tristimulus color analysis according to claim 1, it is characterised in that:Subject to the camera lens (1)
Straight mirror.
5. a kind of coloration of high-precision self-correcting tristimulus color analysis according to any claim in Claims 1 to 4
It is worth acquisition method, it is characterised in that:Including initialization procedure and gatherer process, the step of initialization procedure, includes:
1) incident light that liquid crystal module is sent out through camera lens (1) and optical fiber (2) while enters spectrometer (3) and tristimulus values sensor
(4);
2) spectrometer (3) the acquisition spectroscopic data M, original tristimulus values S transport when the tristimulus values sensor (4) acquires
To DSP (6);
3) the THE SPECTRAL RESPONSE OF THE HUMAN EYE function XYZ that spectroscopic data M is defined according to 1931CIE standards is calculated standard by the DSP (6)
Tristimulus values DE obtains correction parameter C further according to standard tristimulus values DE and original tristimulus values S;
4) DSP (6) corrects the original tristimulus values S that tristimulus values sensor (4) acquires according to correction parameter C,
Tristimulus values DS after being corrected;
The step of gatherer process, includes:
5) spectrometer (3) is closed;
6) the original tristimulus values S of continuous acquisition is carried out using the tristimulus values sensor (4), and gathered data is transmitted to
Continuous original tristimulus values S outputs are the tristimulus values DS after correction by DSP (6), the DSP (6).
6. the chromatic value acquisition method of high-precision self-correcting tristimulus color analysis according to claim 5, it is characterised in that:
The computational methods of the standard tristimulus values DE are DE=M*XYZ, and XYZ is the THE SPECTRAL RESPONSE OF THE HUMAN EYE letter that 1931CIE standards define
Number;The computational methods of the correction parameter C are C=DE/S, and the computational methods of the tristimulus values DS after the correction are DS=S*
C。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN119779486A (en) * | 2025-03-10 | 2025-04-08 | 上海唯视锐光电技术有限公司 | A method for measuring imaging chromaticity and a measuring device based on the method |
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US20140176948A1 (en) * | 2000-04-11 | 2014-06-26 | Rah Color Technologies Llc | Methods and apparatus for calibrating a color display |
CN104574371A (en) * | 2014-12-20 | 2015-04-29 | 中国科学院西安光学精密机械研究所 | High dynamic color digital camera characterization calibration method |
CN105352598A (en) * | 2015-12-11 | 2016-02-24 | 中国电子科技集团公司第四十一研究所 | Multichannel optical power meter automatic calibration system and method |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US20140176948A1 (en) * | 2000-04-11 | 2014-06-26 | Rah Color Technologies Llc | Methods and apparatus for calibrating a color display |
CN101788341A (en) * | 2008-08-04 | 2010-07-28 | 香港纺织及成衣研发中心 | Device and method for detecting fabric color |
CN102124310A (en) * | 2008-08-22 | 2011-07-13 | 柯尼卡美能达光电株式会社 | Photometric/colorimetric device |
CN102735339A (en) * | 2011-04-01 | 2012-10-17 | 爱色丽欧洲公司 | Color measuring device calibration |
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Application publication date: 20180703 |