WO2018110266A1 - 制御装置および色測定システム - Google Patents

制御装置および色測定システム Download PDF

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Publication number
WO2018110266A1
WO2018110266A1 PCT/JP2017/042517 JP2017042517W WO2018110266A1 WO 2018110266 A1 WO2018110266 A1 WO 2018110266A1 JP 2017042517 W JP2017042517 W JP 2017042517W WO 2018110266 A1 WO2018110266 A1 WO 2018110266A1
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WO
WIPO (PCT)
Prior art keywords
nth
light source
source color
color measurement
timing
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Application number
PCT/JP2017/042517
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English (en)
French (fr)
Japanese (ja)
Inventor
慶司 宮尾
智博 深水
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コニカミノルタ株式会社
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Application filed by コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2018556539A priority Critical patent/JP6825629B2/ja
Priority to CN201780076237.XA priority patent/CN110062877B/zh
Publication of WO2018110266A1 publication Critical patent/WO2018110266A1/ja

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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
    • 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

Definitions

  • each of the plurality of light source color measuring devices is provided with a shutter. Further, when zero calibration is performed in each of the plurality of light source color measurement devices, a driving operation for driving the shutter is performed before the light source color measurement for zero calibration is performed.
  • the zero level calibrated by zero calibration is affected by temperature fluctuations. Therefore, when zero calibration is performed in a plurality of light source color measuring devices, preferably, zero calibration is simultaneously performed in a plurality of light source color measuring devices.
  • the shutter is an electric shutter
  • the plurality of shutters are simultaneously driven, currents simultaneously flow through a plurality of motors that respectively drive the plurality of shutters. Therefore, there is a possibility that the capacity of the power supply will be exceeded if there is not enough power supplied from the power supply.
  • This problem is that when a color measurement other than the light source color measurement is performed, when a light source color measurement other than the light source color measurement for zero calibration is performed, a drive operation other than the drive operation for driving the shutter is performed. It also occurs in some cases.
  • the invention described in the detailed description of the invention aims to solve this problem.
  • the problem to be solved by the invention described in the detailed description of the invention is that, when color measurement is simultaneously performed in a plurality of color measurement devices, the power source is used when the drive operation is performed in the plurality of color measurement devices. This is to suppress the power supplied from exceeding the capacity of the power source.
  • control device includes an interface, a control unit, and a power source.
  • the first to Nth color measuring devices are connected to the interface.
  • N is an integer of 2 or more.
  • the first to Nth color measuring devices respectively perform the first to Nth driving operations and perform the first to Nth color measurements, respectively.
  • the first to Nth driving operations are driving operations for preparing for the first to Nth color measurements, respectively.
  • the control unit determines that the timing at which the first at least one driving operation included in the first to Nth driving operations is performed is the first.
  • the first to Nth color measurement devices are controlled so as to be different from the timing at which the second at least one driving operation included in the first to Nth driving operations is different from the first at least one driving operation. To do.
  • the power supply supplies power to the first to Nth color measuring devices.
  • the power supplied from the power source when the driving operation is performed in the plurality of color measurement devices Exceeds the capacity of the power supply.
  • Timing chart which illustrates the timing when various operations in the light source color measurement system of a 1st embodiment are performed. It is a timing chart which illustrates the timing when various operations in the light source color measurement system of a 1st embodiment are performed. It is a timing chart which illustrates time change of power supply current in the light source color measurement system of a 1st embodiment. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 1st comparative example are performed.
  • Timing chart which illustrates the timing when various operations of a 2nd embodiment are performed. It is a timing chart which illustrates the timing when various operations of a 2nd embodiment are performed. It is a timing chart which illustrates the timing when various operations of a 2nd embodiment are performed. It is a timing chart which illustrates the timing when various operations of a 2nd embodiment are performed. It is a timing chart which illustrates the timing when various operations of a 2nd embodiment are performed. It is a timing chart which illustrates time change of power supply current of a 2nd embodiment. It is a timing chart which illustrates the timing when various operations of the 3rd comparative example are performed. It is a timing chart which illustrates the timing when various operations of the 3rd comparative example are performed.
  • a first embodiment relates to a light source color measurement system.
  • FIG. 1 is a block diagram illustrating a light source color measurement system according to the first embodiment.
  • a light source color measurement system 1000 illustrated in FIG. 1 includes N light source color measurement devices P 1 , P 2 , P 3 ,..., P N and a control device 1020.
  • N is an integer of 2 or more.
  • the light source color measurement system 1000 may include components other than these components.
  • Each of the light source color measuring devices P 1 , P 2 , P 3 ,..., P N is a light receiving probe or the like, and receives light from the light source and measures the light source color.
  • the measurement of the light source color is to acquire information on the intensity and color of light from the light source and specify the luminance and color of the light source.
  • the light source color measurement devices P 1 , P 2 , P 3 ,..., P N can be replaced with N object color measurement devices, and the light source color measurement system 1000 can be replaced with an object color measurement system.
  • Each of the N object color measuring devices receives light from a reflector that reflects light from the light source or a transmissive body that transmits light from the light source, and measures the object color.
  • Light source color measuring devices P 1 , P 2 , P 3 ,..., P N are electrically connected to the control device 1020. Controller 1020, light source color measuring instrument P 1, P 2, P 3 , ⁇ , supplies power to P N, light source color measuring instrument P 1, P 2, P 3 , ⁇ , the P N Control and collect measured values of the light source color from the light source color measuring devices P 1 , P 2 , P 3 ,..., P N.
  • the control device 1020 transmits commands, data, and signals to each of the light source color measurement devices P 1 , P 2 , P 3 ,..., P N , and the light source color measurement devices P 1 , P 2 , P 3 ,.
  • Each of PN receives the transmitted command, data and signal from the control device 1020.
  • Each of the light source color measuring devices P 1 , P 2 , P 3 ,..., P N transmits commands, data, and signals to the control device 1020, and the control device 1020 transmits the transmitted commands, data, and signals.
  • Commands and data may take the form of signals.
  • the light source color measuring device P shown in FIG. 2 is each of the light source color measuring devices P 1 , P 2 , P 3 ,..., P N and includes a shutter 1040, a motor 1041, a light sensor 1042, and a temperature sensor 1043. And a memory element 1044.
  • the operation of the light source color measuring device P varies depending on the mode of the light source color measuring device P.
  • the mode of the light source color measuring device P includes a normal measurement mode, a calibration mode, and a temperature information output mode.
  • the light source color measurement device P When the mode of the light source color measurement device P is the calibration mode, the light source color measurement device P performs light source color measurement for calibration, and stores data indicating the measurement value of light source color measurement for calibration as the storage element 1044.
  • the optical path 1060 In the light source color measurement for calibration, the optical path 1060 is blocked by the shutter 1040 so that the light that is the target of the light source color measurement is not incident on the optical sensor 1042, and the light that is the target of the light source color measurement is the optical sensor 1042. A signal when not incident on the light sensor 1042 is output. Therefore, before the light source color measurement for calibration is performed, a pre-driving operation in which the motor 1041 drives the shutter 1040 so that the shutter 1040 blocks the optical path 1060 is performed.
  • the light source color measurement device P When the mode of the light source color measurement device P is the temperature information output mode, the light source color measurement device P performs temperature measurement. In the temperature measurement, the temperature sensor 1043 detects the temperature of the optical sensor 1042. As a result, a temperature variation amount that is a variation in the temperature of the optical sensor 1042 newly detected from the temperature of the optical sensor 1042 detected at the previous calibration is acquired. The internal temperature of the light source color measurement device P other than the temperature of the optical sensor 1042 may be detected.
  • the characteristics of the optical sensor 1042 are temperature-dependent. For example, when the optical sensor 1042 is a silicon element, the sensitivity of the optical sensor 1042 has an extremely small temperature coefficient, but the offset voltage of the optical sensor 1042 has a slightly large temperature coefficient of about ⁇ 2 mV / ° C. Therefore, in order to maintain sufficient measurement accuracy for weak light in an environment where the temperature changes, an offset is obtained when the obtained temperature fluctuation amount exceeds the temperature fluctuation amount that can maintain the required measurement accuracy.
  • the component is removed by an operation based on the measured value.
  • the means for removing the offset component includes not only calculation but also compensation by a circuit.
  • the control device 1020 includes a main body 1080 and a power source 1081 as shown in FIG.
  • the main body 1080 includes an interface 1100, a control unit 1101, and a determination unit 1102.
  • the interface 1100, light source color measuring instrument P 1, P 2, P 3 , ⁇ , P N are connected.
  • Controller 1101 light source color measuring instrument P 1, P 2, P 3 , ⁇ , controls the P N.
  • the determination unit 1102 determines the number of motors 1041 that can be driven simultaneously from the ratio of the power required to drive one motor 1041 and the capacity of the power supply 1081. In the first embodiment, it is determined that the number of motors 1041 that can be driven simultaneously is one.
  • Power 1081 AC adapter, a battery or the like, and supplies to the main body 1080 to supply power, light source color via the body 1080 measuring device P 1, P 2, P 3 , ⁇ , the power P N .
  • the body 1080 is driven by a power source 1081, light source color measuring instrument P 1, P 2, P 3 , ⁇ , supplies power to P N.
  • the control unit 1101 transmits a measurement command for normal measurement to the light source color measurement device P. To do.
  • the light source color measurement device P receives the transmitted measurement command for normal measurement from the control unit 1101, performs light source color measurement in response to receiving the measurement command for normal measurement, and measures the light source color measurement. Data indicating the value is transmitted to the control unit 1101.
  • the control unit 1101 transmits a measurement command for calibration to the light source color measuring device P.
  • the light source color measurement device P receives the transmitted measurement command for calibration from the control unit 1101, performs light source color measurement in response to receiving the measurement command for calibration, and indicates that the calibration is completed.
  • a completion signal is transmitted to the control unit 1101.
  • Data indicating the measurement value of the light source color measurement may be transmitted to the control device 1020. Further, the control unit 1101 transmits a control signal to the light source color measurement device P at a timing at which the motor 1041 drives the shutter 1040.
  • the light source color measurement device P receives the transmitted control signal from the control unit 1101, executes a driving operation for causing the motor 1041 to drive the shutter 1040 in response to the reception of the control signal, and a completion signal when the driving operation is completed. Is transmitted to the control unit 1101.
  • the control unit 1101 receives the transmitted completion signal from the light source color measurement device P.
  • FIGS. 3A ⁇ Figure 3D and 4 Time variation of the timing and the power supply current various operations are performed illustrated in FIGS. 3A ⁇ Figure 3D and 4, light source color measuring instrument P 1, P 2, P 3 , ⁇ , the mode of P N calibration mode a and light source color measuring instrument P 1, P 2, P 3 , ⁇ , is of the case where zero calibration is performed simultaneously in P N.
  • the power supply current shown in FIG. 4 is the current supplied from the power supply 1081 to the light source color measuring devices P 1 , P 2 , P 3 ,..., P N for the pre-drive operation and the post-drive operation. It is time change.
  • light source color measuring instrument P 1, P 2, P 3 , ⁇ , P N in advance of the driving operation B 1, B 2, B 3 , ⁇ , B N, the light source color measurement M 1, M 2, M 3, executes ⁇ ⁇ ⁇ , M N and post driving operation a 1, a 2, a 3 , ⁇ , the a N serially respectively.
  • the pre-driving operation B i includes driving of the motor 1041 provided in the light source color measuring instrument P i .
  • Shutter 1040 provided in the light source color measurement instrument P i if the driving of the motor 1041 provided in the light source color measurement instrument P i in the pre-driving operation B i is performed, block the light path 1060 in the light source color measurement instrument P i Thus, the motor 1041 provided in the light source color measuring instrument P i is driven.
  • i is each of integers 1, 2, 3,..., N.
  • Advance driving operation B 1, B 2, B 3 , ⁇ , B N are different timings TB 1, TB 2, TB 3 to one another, ..., are respectively executed in TB N.
  • the light source color measurements M 1 , M 2 , M 3 ,..., MN are simultaneously executed at the timing TM.
  • Post driving operation A 1, A 2, A 3 , ⁇ , A N is different timings TA 1, TA 2, TA 3 together, ..., are respectively executed by TA N.
  • the control unit 1101 performs zero calibration simultaneously in the light source color measurement devices P 1 , P 2 , P 3 ,..., P N and performs light source color measurements M 1 , M 2 , M 3 ,.
  • the timing TB i at which the previous drive operation B i is executed is the previous drive operation B 1 ,..., B i ⁇ 1 , B i + 1 ,.
  • timing TB 1 to N is executed, respectively, ⁇ , TB i-1, TB i + 1, ⁇ , so as to be different from the TB N, light source color measuring instrument P 1, P 2, P 3 , ⁇ , PN is controlled.
  • i is each of integers 1, 2, 3,..., N.
  • prior driving operations B 1 , B 2 , B 3 ,..., B N are performed at different timings TB 1 , TB 2 , TB 3 , ..., by running each in TB N, a large peak is prevented occur supply current. Therefore, pre-driving operation B 1, B 2, B 3 , ⁇ , B N are mutually different timings TB 1, TB 2, TB 3 , ⁇ , as long as they are executed respectively in TB N, light source color measurement M 1, M 2, M 3 , ⁇ , the timing of M N is executed is also considered optional.
  • the signal level of the signal output from the optical sensor 1042 when the light source color measurement M i are performed for zero calibration is low. Therefore, the light source color measurement M i of the light source color measurement instrument P i, the light source color measuring instrument P 1, ⁇ , P i- 1, P i + 1, ⁇ , drive operation in P N B 1, .., B i ⁇ 1 , B i + 1 ,..., B N are easily affected by power supply noise.
  • light source color measuring instrument P 1, P 2, P 3 , ⁇ if the calibration is not performed simultaneously in the P N, the timing of the light source color measurement M i in the light source color measurement instrument P i is executed , light source color measuring instrument P 1, ⁇ , P i- 1, P i + 1, ⁇ , driving operation B 1 at P N, ⁇ , B i- 1, B i + 1, ⁇ -, which may overlap with the timing when the B N are executed, respectively.
  • FIGS. 5A to 5D and FIG. 6 are timing charts illustrating the timing at which the various operations of the first comparative example are executed and the time variation of the power supply current.
  • the timing at which the operations illustrated in FIGS. 5A to 5D and FIG. 6 are executed and the time variation of the power supply current are determined as follows. This is a case where the operation does not overlap with the timing of execution.
  • FIGS. 7A to 7D and FIG. 8 are timing charts illustrating the timing at which various operations of the second comparative example are executed and the time variation of the power supply current.
  • the timing at which the operations illustrated in FIGS. 7A to 7D and FIG. 8 are executed and the time variation of the power supply current are the same as the timing at which the operations are continuously executed and the advance drive operation is executed. This is when it overlaps with the timing of execution.
  • the time required to execute each of the previous drive operations B 1 , B 2 , B 3 ,..., B N is X
  • each of the N time required to perform the a is X
  • the time required to perform each of the M N is Y
  • the light source color measurement instrument When the number is N, the condition for limiting the maximum value of the power supply current to the power supply current required to drive one motor 1041, that is, as shown in FIGS. 5A to 5D and FIG.
  • the time for taking in the signal is adjusted by the charge storage means or the like, and the measurement performance is ensured. Therefore, the time Y becomes longer.
  • equation (1) may not be satisfied when the number N is large. In this case, for example, as shown in FIGS. 7A to 7D and FIG. 8, the timing TB N at which the previous driving operation B N is executed overlaps the timing TA 1 at which the subsequent driving operation A 1 is executed, and the power supply A large peak occurs in the current.
  • the second embodiment differs from the light source color measurement system of the first embodiment in the timing at which various operations are executed.
  • the main difference between the first embodiment and the second embodiment is that, in the first embodiment, two or more light source color measurement devices do not execute the driving operation before and after, but the second embodiment.
  • the two light source color measuring devices perform the pre- and post-drive operations at the same time.
  • the configuration employed in the first embodiment may be employed in the second embodiment within a range that does not hinder the adoption of the configuration that causes the main difference.
  • FIG. 9A to FIG. 9F and FIG. 10 are timing charts illustrating the timing at which various operations of the second embodiment are executed and the time variation of the power supply current.
  • the timing at which the operations illustrated in FIGS. 9A to 9F and FIG. 10 are executed and the time variation of the power supply current are determined by the light source color measuring devices P 1 , P 2 , P 3 , P 4 ,. 1 , P N mode is the calibration mode, and zero calibration is simultaneously performed in the light source color measuring devices P 1 , P 2 , P 3 , P 4 ,..., P N ⁇ 1 , P N. .
  • light source color measuring instrument P 1, P 2, P 3 , P 4, ⁇ , the P N-1, P N, in advance of the driving operation B 1, B 2 , B 3 , B 4 ,..., B N ⁇ 1 , B N are executed, respectively, and light source color measurements M 1 , M 2 , M 3 , M 4 ,. N-1 and MN are respectively executed, and the subsequent drive operations A 1 , A 2 , A 3 , A 4 ,..., A N-1 and A N are respectively executed.
  • Advance driving operation B 1, B 3, ⁇ , B N-1 , the timing TB 1, TB 3, ⁇ ⁇ ⁇ , are performed respectively in TB N-1.
  • Pre driving operation B 2, B 4, ⁇ , B N , the timing TB 1, TB 3, ⁇ ⁇ ⁇ , are performed respectively in TB N-1.
  • the light source color measurements M 1 , M 2 , M 3 , M 4 ,..., M N ⁇ 1 , M N are simultaneously executed at the timing TM.
  • Post driving operation A 1, A 3, ⁇ , A N-1 , the timing TA 1, TA 3, ⁇ ⁇ ⁇ , are performed respectively in TA N-1.
  • Post driving operation A 2, A 4, ⁇ , A N is the timing TA 1, TA 3, ⁇ ⁇ ⁇ , are performed respectively in TA N-1.
  • the control unit 1101 performs zero calibration simultaneously on the light source color measuring devices P 1 , P 2 , P 3 , P 4 ,..., P N ⁇ 1 , P N and performs light source color measurements M 1 , M 2 ,
  • the timing TB i at which the prior drive operations B i and B i + 1 are executed is the advance drive operation B 1, ⁇ , B i-1 , B i + 2, ⁇ , timing TB 1 to B N is run, ⁇ , TB i-2, TB i + 2, ⁇ , TB N
  • the light source color measuring devices P 1 , P 2 , P 3 , P 4 ,..., P N ⁇ 1 , P N are controlled differently from ⁇ 1 .
  • the prior drive operations B i and B i + 1 are included in the prior drive operations B 1 , B 2 , B 3 , B 4 ,..., B N ⁇ 1 , B N.
  • the prior drive operations B 1 ,..., B i ⁇ 1 , B i + 2 ,..., B N are the prior drive operations B 1 , B 2 , B 3 , B 4 ,. Although included in N ⁇ 1 and B N , they are different from the previous driving operations B i and B i + 1 .
  • control unit 1101 causes the light source color measurement devices P 1 and P 1 to prevent the power supplied from the power source 1081 from exceeding the capacity of the power source 1081 when the previous driving operations B i and B i + 1 are executed. 2 , P 3 , P 4 ,..., P N ⁇ 1 , P N are controlled.
  • the maximum value of the power supply current when the prior drive operations B 1 , B 2 , B 3 , B 4 ,..., B N ⁇ 1 , B N are executed. Is limited to the power supply current required to drive the two motors 1041, and a large peak does not occur in the power supply current.
  • This light source color measuring instrument P 1, P 2, P 3 , P 4, ⁇ when the zero calibration is performed simultaneously in P N-1, P N, in advance of the driving operation B 1, B 2 , B 3, B 4 power,..., light source color measuring instrument P 1 when B N-1, B N is executed, P 2, P 3, ..., the power supplied to P N
  • the power supplied from 1081 is prevented from exceeding the capacity of the power supply 1081.
  • the time required for executing the prior driving operations B 1 , B 2 , B 3 , B 4 ,..., B N ⁇ 1 , B N is the first time.
  • the prior drive operations B 1 , B 2 , B 3 ,..., B N in the embodiment are reduced to half of the time required.
  • FIGS. 11A to 11D and FIG. 12 are timing charts illustrating various operation timings and time variation of the power supply current of the third comparative example.
  • the light source color measuring devices P 1 , P 2 , P 3 ,..., P N have the prior driving operations B 1 , B 2 , B 3 ,. , B N, and light source color measurements M 1 , M 2 , M 3 ,..., M N for zero calibration, respectively, and subsequent drive operations A 1 , A 2 , A 3 , ..., A N are executed.
  • control device and color measurement system may be used in the color measurement field in which color measurement is performed by a plurality of color measurement devices.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)
PCT/JP2017/042517 2016-12-12 2017-11-28 制御装置および色測定システム WO2018110266A1 (ja)

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CN201780076237.XA CN110062877B (zh) 2016-12-12 2017-11-28 控制装置以及颜色测量系统

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Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH08156309A (ja) * 1994-11-29 1996-06-18 Sanyo Electric Co Ltd 記録ヘッドの駆動方法
JPH10197779A (ja) * 1997-01-06 1998-07-31 Asahi Optical Co Ltd カメラのモータ時分割駆動装置
WO2010021258A1 (ja) * 2008-08-22 2010-02-25 コニカミノルタセンシング株式会社 測光測色装置

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Publication number Priority date Publication date Assignee Title
JP4884744B2 (ja) * 2005-10-07 2012-02-29 シャープ株式会社 バックライト装置及びこれを備える表示装置
JP5411778B2 (ja) * 2009-04-30 2014-02-12 キヤノン株式会社 分光測色装置、およびそれを用いた画像形成装置
DE102010041569B4 (de) * 2010-09-28 2017-04-06 Leica Geosystems Ag Digitales Kamerasystem, Farbfilterelement für digitales Kamerasystem, Verfahren zur Bestimmung von Abweichungen zwischen den Kameras eines digitalen Kamerasystems sowie Bildverarbeitungseinheit für digitales Kamerasystem
US8773579B2 (en) * 2011-06-30 2014-07-08 Nikon Corporation Accessory controlled by camera and camera that controls accessory

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08156309A (ja) * 1994-11-29 1996-06-18 Sanyo Electric Co Ltd 記録ヘッドの駆動方法
JPH10197779A (ja) * 1997-01-06 1998-07-31 Asahi Optical Co Ltd カメラのモータ時分割駆動装置
WO2010021258A1 (ja) * 2008-08-22 2010-02-25 コニカミノルタセンシング株式会社 測光測色装置

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CN110062877B (zh) 2021-08-03
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