WO2012132380A1 - 光学特性測定装置および該方法 - Google Patents
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- WO2012132380A1 WO2012132380A1 PCT/JP2012/002067 JP2012002067W WO2012132380A1 WO 2012132380 A1 WO2012132380 A1 WO 2012132380A1 JP 2012002067 W JP2012002067 W JP 2012002067W WO 2012132380 A1 WO2012132380 A1 WO 2012132380A1
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- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
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- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
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- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
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Definitions
- the present invention relates to an optical characteristic measurement apparatus and method capable of obtaining a spectral reflectance coefficient and a color value of an object, and in particular, an optical characteristic measurement for estimating a value in a situation using arbitrary ambient light as the color value. Apparatus and method.
- the color of the object is determined by the spectral intensity distribution of the light source irradiated to the object and the spectral reflectance coefficient of the object to be measured.
- a standard light source defined by a standard such as CIE (International Lighting Association) such as D50, D65, C, A and F or ISO is generally set in the colorimeter.
- CIE International Lighting Association
- ISO International Lighting Association
- the spectral intensity distribution is stored in advance as a “user light source” using arbitrary ambient light as the observation light source, and the measurement result of the standard light source is the standard light source and the user light source. Is converted into a color value when the user light source is the observation light source.
- Patent Document 2 a method for obtaining a spectral emissivity coefficient and a color value using a light source having an arbitrary spectral intensity distribution registered in advance in the “evaluation illumination memory” as an evaluation illumination light instead of the observation light source. It is shown. Thereby, the spectral emissivity coefficient of the paper containing the optical brightener is accurately measured.
- Patent Document 1 a method for obtaining the spectral intensity distribution of the light source to be set is not described.
- a method of inputting spectral intensity distribution data of a light source obtained from a fluorescent lamp manufacturer or the like, or inputting spectral intensity distribution data measured using a spectral illuminometer is used. Therefore, even when the measurement interval is rough and measurement is performed at a pitch of 10 nm, for example, it is necessary to input a considerable amount of spectral intensity distribution data, which is very complicated.
- the present invention has been made in view of the above-described circumstances, and an object thereof is an optical characteristic measuring apparatus and an optical characteristic measurement capable of easily obtaining a color value under an arbitrary ambient light with a single unit. Is to provide a method.
- An optical characteristic measuring apparatus and an optical characteristic measuring method are an optical characteristic measuring apparatus and a method for obtaining predetermined optical characteristics such as a color value and a total spectral emissivity coefficient of an object to be measured.
- predetermined optical characteristics such as a color value and a total spectral emissivity coefficient of an object to be measured.
- the spectral intensity distribution of the predetermined ambient light incident from the measurement aperture is measured and stored, and the stored spectral light intensity distribution of the ambient light is used when measuring the optical characteristics. Therefore, optical characteristics are required when the measured ambient light is used as an observation light source. For this reason, the optical property measuring apparatus and the optical property measuring method according to the present invention can easily obtain color values under various ambient light with a single device.
- FIG. 2 is an optical path diagram in an object color measurement mode showing a schematic configuration of the colorimeter shown in FIG. 1. It is a block diagram which shows the electrical structure of the color meter shown in FIG.
- FIG. 2 is an optical path diagram in an ambient light measurement mode showing a schematic configuration of the colorimeter shown in FIG. 1.
- FIG. 2 is a flowchart for explaining an environment light measurement operation and an object color measurement operation by the colorimeter shown in FIG. 1.
- FIG. It is a figure for demonstrating the operation procedure for calculating
- FIG. 1 is a perspective view showing the overall configuration of the colorimeter according to the first embodiment.
- the color meter 1 is a handy type color meter and is an example of an optical characteristic measuring device.
- the measurer when measuring the object to be measured, the measurer has the main body 101, and the colorimeter 1 is arranged so that the measurement opening 31 faces (contacts) the surface of the object to be measured by the measurer. Then, measurement of the object to be measured is executed.
- an attachment 102 is appropriately fitted by screwing in the vicinity of the measurement opening 31 of the main body 101.
- FIG. 1A shows a state before the attachment 102 is fitted.
- FIG. 1B shows a state after the fitting.
- the attachment 102 holds a diffusion plate 103 to be described later and is used when measuring ambient light.
- the main body 101 is placed face down on a printed material as an example of the object to be measured placed on the table without the attachment 102.
- the power switch 104 is turned on and the measurement button 105 is operated, the main body 101 measures the color value of the printed matter.
- the measurement result is displayed on a display unit (not shown) on the back side in FIG. 1 or transmitted to a personal computer or the like connected to the main body 101.
- the colorimeter 1 has a configuration similar to that of the attachment 102, and a white calibration plate can be attached and detached. By attaching the white calibration plate, it is possible to calibrate the spectral intensity characteristics of the polychrome unit 35 described later. Become.
- FIG. 2 is an optical path diagram in the object color measurement mode showing a schematic configuration of the colorimeter 1 shown in FIG.
- the optical path of the colorimeter 1 is generally configured by including an illumination optical system 2 and a light receiving optical system 3, which are accommodated in the main body 101.
- the light receiving optical system 3 includes a thin circular ring mask 32 that forms a measurement aperture 31, a lens 33 that collects light that has passed through the circular mask (light receiving mask plate) 32, and an incident end 341 at the focal position of the lens 33. Is disposed, and a polychromatic unit 35 through which light emitted from the light emitting end 342 of the optical fiber 34 enters from an incident opening 351 is provided.
- the optical fiber 34 has a predetermined length, so that incident light from various directions into the measurement aperture 31 is mixed in the optical fiber 34, and the light collected by the lens 33 enters the optical fiber 34. Variations due to the incident position can be eliminated.
- the illumination optical system 2 includes an illumination light source 21, a reflector 22, and a toroidal mirror 23.
- the illumination light source 21 includes a white LED that generates light in the visible range, and is provided on the opposite side of the lens 33 with respect to the incident end 341 of the optical fiber 34.
- the reflector 22 is a reflecting member, is formed in a dome shape in which a hemisphere or a part of the hemisphere is cut out, and the illumination light source 21 is disposed at the center (focal point) portion thereof.
- the illumination light from the illumination light source 21 is reflected in the direction of the measurement opening 31 by the inner surface of the reflector 22, and further reflected by the cylindrical toroidal mirror 23, and the sample which is the object to be measured from the outside of the circular mask 32.
- the toroidal mirror 23 is formed in a cylindrical shape whose cross section in the axial direction is a truncated cone.
- the illumination optical system 2 and the light receiving optical system 3 constitute a 45 ° a: 0 ° geometry, and are illuminated from all directions of the sample 4, thereby making it less susceptible to the influence of the sample surface inclination and anisotropy. be able to.
- FIG. 3 is a block diagram showing the electrical configuration of the colorimeter shown in FIG.
- Reflected light of the sample 4 with respect to the illumination light from the illumination optical system 2 and external incident ambient light described later are received by the light receiving optical system 3. More specifically, the reflected light of the sample 4 and the ambient incident ambient light are incident on the lens 33 via the circular mask 32, collected by the lens 33, and incident on the optical fiber 34 from the incident end 341. The light is guided by the optical fiber 34 and is incident on the polychromo unit 35 through the incident opening 351.
- the polychromo unit 35 includes a spectral plate (spectral block) 352 such as a diffraction grating and a CMOS line sensor 353 in a dark box.
- Incident light (reflected light from the sample 4 and ambient light incident from the outside) on the polychromo unit 35 is spectrally divided to a wavelength of about 360 to 730 nm by a spectral plate 352 such as a diffraction grating, and each of the spectrally separated wavelengths.
- the light is photoelectrically converted by each light receiving element of the CMOS line sensor 353.
- the photoelectrically converted signal of each wavelength is converted into digital data by the AD converter 51 and input to the CPU 52.
- the CPU 52 is an example of an arithmetic unit, and obtains the measured spectral reflectance coefficient of the sample 4 using the acquired digital data and calibration data previously written in the memory 53 at a factory or the like, for example.
- the CPU 52 obtains a color value from the spectral reflectance coefficient and displays the result on the LCD 54 or outputs it from the data output unit 55 to an external personal computer or the like.
- the CPU 52 performs measurement of ambient light, various settings described below, and the like, and the illumination light source 21 via the control signal generation unit 56. ON / OFF control, CMOS sensor 353 control, and AD converter 51 timing control are also performed.
- the colorimeter 1 is an object color measurement mode for obtaining the spectral reflectance coefficient of the sample 4 in order to obtain the color value of the sample 4 that is the object to be measured.
- an ambient light measurement mode that is performed before the object color measurement mode and measures the spectral intensity distribution using arbitrary ambient light as illumination light, and the actually measured ambient light is used as an observation light source. In this case, the spectral reflectance coefficient and the color value of the sample 4 are obtained.
- FIG. 4 is an optical path diagram in the ambient light measurement mode showing a schematic configuration of the colorimeter shown in FIG. FIG. 2 described above illustrates an optical path diagram in the object color measurement mode.
- the configuration of the light receiving optical system 3 excluding the illumination optical system 2 from the configuration of FIG. 2 is used in the ambient light measurement mode.
- the main body 101 excluding the attachment 102 from the colorimeter 1 is used, while in the ambient light measurement mode, as shown in FIG. 1 (B).
- the attachment 102 is attached to the main body 101, that is, as shown in FIG. 4, the diffusion plate 103 is disposed in the measurement opening 31 and measurement is performed.
- the diffuser plate 103 in the measurement aperture 31 and measuring the spectral intensity distribution of the ambient light, the influence of the positional relationship between the ambient light source 6 as the observation light source and the light receiving optical system 3 is reduced. can do. That is, the deviation of the ambient light due to the incident position can be reduced. Therefore, by using the diffusion plate 103, ambient light can be stably guided into the main body 101 (the light receiving optical system 3), and the measurement accuracy in the measurement of the light source can be improved. Then, by holding the diffuser plate 103 having such a function on the attachment 102 and making it attachable to and detachable from the measurement opening 31, the colorimeter 1 of the present embodiment has the ambient light measurement mode and the object color measurement. The mode can be easily switched.
- the attachment 102 only needs to be configured to hold the diffusion plate 103 and be detachable from the measurement opening 31.
- the attachment 102 can be realized by a screw-type holding ring, a holding ring having a locking claw, or the like. it can.
- the locking claw of the diffusion plate 103 is provided on the main body 101 side so as to be able to advance and retreat, the diffusion plate 103 does not necessarily need to be held by the attachment 102 and can be put on the measurement opening 31 alone. It may be configured.
- FIG. 5 is a flowchart for explaining the ambient light measurement operation and the object color measurement operation by the colorimeter shown in FIG.
- the ambient light measurement mode is executed in response to the input operation unit 57, the attachment 102 mounting operation, or the like, the CPU 52 in FIG. Profile). More specifically, as shown in FIG. 4, the ambient light from the light source 6 enters the condenser lens 33 through the diffusion plate 103 attached to the outside of the measurement opening 31 (circular mask 32) to collect the light. The light is collected by the lens 33, enters the optical fiber 34, and is guided to the polychromatic unit 35 through the optical fiber 34. In this case, of course, the illumination optical system 2 is in a non-operating state, that is, the illumination light source 21 is turned off.
- the incident light (environmental light) of the polychromo unit 35 is split into a plurality of wavelengths by the spectroscopic plate 352, and the light of each split wavelength is photoelectrically converted by each light receiving element of the CMOS line sensor 353, and the light. An electric signal corresponding to the intensity is obtained.
- the obtained electrical signals for each wavelength are converted into digital data by the AD converter 51 and input to the CPU 52.
- step S ⁇ b> 2 the CPU 52 performs calibration data (spectral sensitivity data and the like) of the spectral plate 352 and the CMOS line sensor 353 and calibration data of the diffusion plate 103 which are previously written in the memory 53 with respect to the acquired digital data. Compensation (subtraction) according to (spectral transmittance data) is performed to obtain the spectral intensity distribution (spectral profile) data of the ambient light, this data is stored in the memory 53, and the process is terminated.
- calibration data spectral sensitivity data and the like
- CMOS line sensor 353 calibration data of the diffusion plate 103 which are previously written in the memory 53 with respect to the acquired digital data.
- Compensation (subtraction) according to (spectral transmittance data) is performed to obtain the spectral intensity distribution (spectral profile) data of the ambient light, this data is stored in the memory 53, and the process is terminated.
- the observation light source desired by the measurer is input from the input operation unit 57 in step S11 in FIG. Is selected and entered.
- the object color of the sample 4 as the object to be measured is measured in step S12. More specifically, the CPU 52 operates the illumination optical system 2, that is, turns on the illumination light source 21. As a result, the illumination light generated by the illumination light source 21 is reflected by the reflector 22 and the toroidal mirror 23 and is irradiated onto the sample 4 at an angle of 45 ° from the normal direction.
- the component in the normal direction is guided to the polychromatic unit 35 through the measurement aperture 31 (circular mask 32), the condenser lens 33 and the optical fiber 34 in the same manner as described above.
- the sensor 353 converts the signal into a signal corresponding to the spectral intensity of each wavelength.
- the obtained signal is converted into digital data by the AD converter 51 and input to the CPU 52.
- the CPU 52 obtains the measured spectral reflectance coefficient of the sample 4 using the acquired digital data and calibration data previously written in the memory 53, obtains a color value from the spectral reflectance coefficient, and obtains the result.
- the data is displayed on the LCD 54 or output from the data output unit 55 to the outside.
- the CPU 52 calculates the color value under the ambient light of the light source selected by the user from the spectral intensity distribution of each light source stored in the memory 53.
- spectral sensitivity data L0 ( ⁇ ) of the colorimeter 1 (light receiving optical system 3) when light as a reference is measured is obtained as calibration data, and this spectral sensitivity data L0 ( ⁇ ) Is recorded in the memory 53 as the main body sensitivity data L0 ( ⁇ ).
- the main body sensitivity data L0 ( ⁇ ) is measured by attaching a reference master diffusion plate as the diffusion plate 103 and measuring the reference light whose spectral illuminance (spectral intensity distribution) S0 ( ⁇ ) is known.
- the main body sensitivity data L0 ( ⁇ ) is an AD conversion value obtained by the measurement.
- the CPU 52 obtains the measured ambient light spectral illuminance (spectral intensity distribution) S1 ( ⁇ ) by the following formula ( Obtained from 1).
- S1 ( ⁇ ) S0 ( ⁇ ) * L1 ( ⁇ ) / L0 ( ⁇ ) * N ( ⁇ ) (1)
- N ( ⁇ ) is the transmittance data of the diffusion plate 103, and is used in the actual ambient light measurement mode attached to the product and the relatively high precision master diffusion plate used in the factory. This is the ratio of the transmittance to the diffusion plate with relatively low accuracy. That is, the diffusion plate transmittance data N ( ⁇ ) is data that compensates for lot variations and the like of the diffusion plate 103 that is actually used.
- the diffusion plate 103 is not exchangeable with the attachment 102 as described above, and is attached to a slide member provided in the main body 101 and configured to be movable forward and backward with respect to the measurement opening 31, for example.
- the spectral transmittance characteristics of the diffusion plate 103 can also be compensated.
- the spectral reflectance coefficient R0 ( ⁇ ) is measured using the illumination optical system 2 and the light receiving optical system 3 with a known prescribed white calibration plate attached to the measurement aperture 31, and the white calibration is performed.
- the AD conversion value D0 ( ⁇ ) of the plate and the spectral reflectance coefficient R0 ( ⁇ ) are recorded in the memory 53. Measurement and recording of the calibration data of the white calibration plate may be performed by the user at the time of measurement.
- the spectral reflectance coefficient R1 ( ⁇ ) of the measured sample is obtained by the following equation (2).
- processing for correcting the light amount fluctuation of the illumination light source 21 and the environmental temperature fluctuation is also performed.
- R1 ( ⁇ ) R0 ( ⁇ ) * D1 ( ⁇ ) / D0 ( ⁇ ) (2)
- CPU52 calculates
- Color value (Tristimulus values X, Y, Z) Spectral distribution of light used for color display (observation light source) * Spectral reflectance coefficient of measurement object * Color matching function (spectral sensitivity of eyes) (3)
- the definition formula of the object color is as the following formula (4) (formula (4-1) to formula (4-4)).
- each value of the color system of L * a * b * can be obtained by the following formula (5) (formula (5-1) to formula (5-4)).
- FIG. 6 is a diagram for explaining an operation procedure for obtaining a color value.
- each measurement mode (“ambient light measurement”, “object color measurement”) or “menu” is selected by the measurer from the input operation unit 57. Is selected.
- “Ambient Light Measurement” is selected, the ambient light measurement screen H5 is displayed, and the color meter 1 enters the ambient light measurement mode shown in FIG. 5, and the process described above is performed when the measurer presses the measurement button 105. To complete the measurement. After the measurement, a message for confirming whether or not to save the data is displayed together with the measurement result as shown in a screen H6. When the measurer operates an OK or cancel button (not shown), it can be determined whether or not to save.
- a data storage screen H7 is displayed, and after inputting the name of the light source, for example, “measurement room”, the measurer presses the OK button, and thereby the spectral intensity distribution data is displayed. , The name of the light source is associated and stored in the memory 53.
- the observation light source setting screen H3 is displayed, and the measurer sets the observation light source from the input operation unit 57.
- the name “measurement room” of the light source having the stored spectral intensity distribution is displayed at the top (upper), and the spectral intensity of the ambient light measured by the operator pressing the OK button as it is.
- the distribution is read from the memory 53 to the CPU 52 and set as an observation light source.
- the object color measurement screen H8 is displayed, and the color value is measured when the measurer presses the measurement button 105 on the screen H8.
- the measurement result is displayed as shown in a screen H9.
- the name of the set ambient light data, “measurement room” is displayed, and the measurement conditions such as “field of view” are also displayed.
- the menu setting screen H2 it is possible to set conditions for performing object color measurement such as observation light source, observation visual field, color system, and ambient light measurement.
- object color measurement such as observation light source, observation visual field, color system, and ambient light measurement.
- the “measurement room” is displayed as the screen H3 described above. If the name is displayed but none is stored, only the light sources such as D50, D65, A, F, etc., which are stored in advance at the time of product shipment, for example, are displayed as shown in the screen H4. Is done.
- the input operation unit 57 that functions as a setting unit is provided. 57, the name can be input as the identification information of the observation light source 6, and the name input by the CPU 52 is stored in association with the spectral intensity distribution data. In the object color measurement mode, the observation light source 6 can be easily specified.
- the colorimeter 1 has a plurality of observation light sources as shown in the screen H10 by setting the colorimeter 1 in a state where a plurality of observation light sources 6 can be selected before executing the object color measurement mode. 6 can be displayed side by side on the LCD 54.
- the measurer can easily confirm on the display screen of the LCD 54 how much color difference is caused by the different light source.
- the color value when the aforementioned “measurement chamber” is the observation light source 6 and the color value when the “lighting booth” is used as the other observation light source 6 are displayed. It is displayed.
- the lighting booth is an illumination box for visually observing the color, and a fluorescent lamp is provided at the top of the box, the object to be measured is placed in the box, and the measurer takes the object to be measured from the front. This is for observing the color, and is also called a color counter.
- the measurement results of the spectral intensity distributions of a plurality of ambient light can be stored in the memory 53, and the measurer can appropriately select and specify the readout results from the memory 53 so that they can be used. It is not necessary to measure the spectral intensity distribution of the ambient light every time the light changes, and the convenience of the colorimeter 1 can be improved. Further, as described above, by adding identification information of the ambient light (observation light source 6) such as the name of the measurement place, it is possible to easily specify the plurality of ambient light (observation light source 6). This is particularly preferred.
- the color differences in the plurality of observation light sources 6 may be displayed as shown in the screen H11.
- the difference from the color value in the “lighting booth” is displayed based on the color value in the “measurement room”.
- the colorimeter 1 of the present embodiment has the object color measurement mode for obtaining the spectral reflectance coefficient of the object to be measured (sample 4) in order to obtain the color value of the object to be measured (sample 4);
- the object color measurement mode for obtaining the spectral reflectance coefficient of the object to be measured (sample 4) in order to obtain the color value of the object to be measured (sample 4);
- the actually measured ambient light is used as the observation light source 6.
- the spectral reflectance coefficient and the color value of the object to be measured can be obtained.
- the CPU 52 operates the light receiving optical system 3, which is an example of a light source measurement unit, via the control signal generation unit 56 to measure ambient light from an arbitrary ambient light source 6.
- the spectral intensity distribution of the ambient light is measured and stored in the memory 53.
- the CPU 52 operates the illumination optical system 2 that is an example of the illumination light source and the light receiving optical system 3 that is also an example of the spectroscopic measurement unit via the control signal generation unit 56.
- the object to be measured (sample 4) facing the measurement opening 31 is irradiated with illumination light whose spectral intensity distribution is measured in advance and stored in the memory 53 to the illumination optical system 2, and measured by irradiation of the illumination light.
- the light receiving optical system 3 is caused to measure the spectral reflectance coefficient of the object to be measured (sample 4) from the reflected light of the object (sample 4).
- the CPU 52 obtains the color value of the object to be measured (sample 4) when the ambient light of the spectral intensity distribution stored in the memory 53 is used as the observation light source 6 from the measured spectral reflectance coefficient. .
- the colorimeter 1 of the present embodiment can measure the spectral intensity distribution in an arbitrary ambient light and the spectral reflectance coefficient and color value of the object to be measured (sample 4) in a specified light source.
- the color value of the object to be measured (sample 4) when the measured ambient light is used as the observation light source 6 can also be obtained.
- the colorimeter 1 as an optical characteristic assumption device capable of obtaining a color value correlated with visual observation more easily can be realized.
- the spectral intensity distribution of the illumination light source 21 is measured in advance by a change in the positional relationship between the spectral plate 352 and the CMOS line sensor 353, a change in the photoelectric conversion characteristics of the CMOS line sensor 353, a change in the light emission characteristics of the illumination light source, and the like.
- a configuration in which the white calibration plate or the like is arranged in the measurement aperture 31 is provided, and the actual spectral intensity distribution of the illumination light source 21 is measured by the polychrome unit 35.
- a calibration operation such as updating the storage contents of the memory 53 may be performed as appropriate.
- FIG. 7 is an optical path diagram in the object color measurement mode showing a schematic configuration of the colorimeter in the second embodiment.
- the color meter 1 a in the second embodiment is similar to the color meter 1 in the first embodiment described above, and corresponding portions are denoted by the same reference numerals and description thereof is omitted.
- the colorimeter 1 in the first embodiment described above sets the measured spectral intensity distribution of the ambient light to the observation light source 6 for object color measurement, while the colorimeter 1a in the second embodiment measures the measured environment light.
- the spectral intensity distribution of light is set as the evaluation illumination light for object color measurement.
- an illumination optical system 2a is used instead of the illumination light source 2 in the color meter 1 of the first embodiment.
- the illumination optical system 2 a includes an illumination light source 21, a reflector 22, and a toroidal mirror 23, and further includes a second light source 24. That is, in the illumination optical system 2a, the illumination light source 21 that functions as the first light source in the colorimeter 1a of the second embodiment includes a white LED that generates visible light that does not include a wavelength that excites the fluorescent substance.
- the second light source 24 includes an ultraviolet LED that generates light including at least an ultraviolet region that can excite the fluorescent substance.
- the second light sources 24 are arranged on the left and right sides of FIG. 7, respectively, but are approximately 45 with respect to the normal line of the sample 4 as in the case of the illumination light source 21 that is the first light source. Any structure that can illuminate at an angle of ° may be used.
- a configuration in which the sample 4 is directly irradiated may be used.
- the polychromatic unit 35 of the light receiving optical system 3 can also acquire the spectral intensity distribution data in the ultraviolet region covering at least the excitation region of the fluorescent whitening agent in order to correctly measure the fluorescent component. It has become.
- a fluorescent component is added to the reflected light. Since the spectral characteristics of the fluorescent component depend on the spectral intensity distribution of the light that illuminates the sample, in order to accurately measure the optical characteristics of the sample containing the fluorescent brightener, the spectral intensity distribution of the illumination light is used for evaluation. It is necessary to match the illumination light. Generally, standard light sources such as the aforementioned D50, D65, and A are used for the illumination light for evaluation, but it is very difficult to match the spectral intensity distribution of the light that is actually illuminated to D50 or the like.
- Patent Document 2 reflected light from a sample is measured by using illumination light having two types of spectral intensity distributions, and from these measured data and coefficients stored in advance in a memory, The total spectral emissivity coefficient when illuminated with illumination light having a numerically arbitrary spectral intensity distribution is required. For this reason, also in this embodiment, the first and second light sources 21 and 24 having two types of spectral intensity distributions are used. However, Patent Document 2 does not indicate that the measured spectral light intensity distribution of ambient light is used as the evaluation illumination light.
- FIG. 8 is a flowchart for explaining the measurement operation of the ambient light and the measurement operation of the object color by the colorimeter shown in FIG. 8 is similar to the operation shown in FIG. 5, and the corresponding operation is denoted by the same step number, and the description thereof is omitted.
- the operation in the ambient light measurement mode is the same as in FIG.
- step S11 after the type of the observation light source 6 desired by the measurer is selected from the input operation unit 57 by the CPU 52, in step S13, similarly, the evaluation illumination light is similarly used. Is also set. Although both can be set arbitrarily, the measured spectral intensity distribution is set for both the observation light source 6 and the evaluation illumination light in order to easily obtain the color value under the same conditions as visual observation at the place where the environmental light is measured. Good. Thereafter, in step S12, the object color of the sample 4 to be measured is measured.
- the total spectral emissivity coefficient is obtained based on the evaluation illumination light set in step S13, and similarly, the color value is obtained based on the observation light source 6 set in step S13.
- the total spectral emissivity coefficient and the color value including the fluorescence reflection under the illumination light for evaluation are obtained.
- An optical characteristic measurement apparatus is an optical characteristic measurement apparatus that obtains a color value of an object to be measured, and includes a light source measurement unit that measures a spectral intensity distribution of predetermined ambient light incident from a measurement aperture, and the light source measurement A storage unit that stores a measurement result by the unit, an illumination light source that irradiates the measurement object facing the measurement aperture with illumination light in which the spectral intensity distribution has been measured in advance, and a measurement object that is irradiated with the illumination light.
- a spectroscopic measurement unit that measures a spectral reflectance coefficient of the object to be measured from reflected light, and the measured spectral reflectance coefficient from the measured spectral reflectance coefficient under the ambient light of the spectral intensity distribution stored in the storage unit And a calculation unit for obtaining a color value of the object to be measured.
- An optical property measurement method is an optical property measurement method for obtaining a color value of an object to be measured, measuring and storing a spectral intensity distribution of predetermined ambient light, and A step of measuring a spectral reflectance coefficient of the measurement object using illumination light from an illumination light source whose spectral intensity distribution has been measured in advance, and the stored spectrum from the measured spectral reflectance coefficient Determining a color value of the object under an ambient light having an intensity distribution.
- the optical characteristic measuring apparatus and method having such a configuration the spectral intensity distribution of the ambient light is measured and stored before the measurement of the object to be measured. In the measurement of the object to be measured, the spectral intensity of the measured ambient light is measured. The color value of the object to be measured is obtained using the distribution. Therefore, the optical characteristic measuring apparatus and method having such a configuration measure the spectral intensity distribution of an arbitrary ambient light and the spectral reflectance coefficient and color value of an object to be measured with a specified light source with a single apparatus. In addition, it is possible to obtain the color value of the object to be measured when the measured ambient light is used as the observation light source. This makes it possible to realize a colorimeter that can more easily obtain color values having a correlation with visual observation.
- An optical characteristic measuring apparatus for obtaining a total spectral emissivity coefficient of an object to be measured, and a light source for measuring a spectral intensity distribution of predetermined ambient light incident from a measurement aperture
- the storage unit for storing the measurement result by the light source measurement unit, the first light source for generating visible light, and the object to be measured are fluorescent samples, at least the fluorescent material can be excited.
- a second light source that generates light including an ultraviolet region, and an illumination light source that irradiates the measurement object facing the measurement aperture with illumination light in which the spectral intensity distribution is measured in advance, and the first and first light sources
- the reflected light of the object to be measured is used to measure the total spectral emissivity coefficient of the object to be measured, and by irradiation with illumination light having the two types of spectral intensity distributions.
- a spectral radiance factor from the spectral intensity distribution of the ambient light stored in the storage unit, and a calculation unit for determining the total spectral radiance factor of the object to be measured under the environment light.
- An optical characteristic measurement method is an optical characteristic measurement method for obtaining a total spectral emissivity coefficient of an object to be measured, and measuring and storing a spectral intensity distribution of predetermined ambient light.
- the spectral intensity distribution is measured in advance, the first light source that generates visible light, and the light that includes at least the ultraviolet region that can excite the fluorescent material when the object to be measured is a fluorescent sample.
- the spectral intensity distribution of the measured ambient light is set as the observation light source for measuring the object color.
- the intensity distribution is set to the evaluation illumination light for object color measurement.
- each of the first and second light sources irradiates the sample with illumination light having two types of spectral intensity distributions, and each reflected light is emitted from the sample.
- illumination light having an arbitrary spectral intensity distribution numerically from the measured data and the pre-stored environmental light coefficients (the two types of spectral intensity distributions).
- the total spectral emissivity coefficient when illuminated with is obtained. Therefore, the optical characteristic measuring apparatus and method having such a configuration are obtained from the measurement result of the total spectral emissivity coefficient by the illumination light emitted from the simulated evaluation illumination light source including the first and second light sources.
- the color value can be obtained by converting (converting) the total spectral reflectance coefficient of the object to be measured under light.
- the optical property measurement apparatus further includes a diffusion plate that covers the measurement opening for measuring the spectral intensity distribution of the ambient light, and the diffusion plate is held by the attachment. Are attached to and detached from the measurement opening.
- the optical characteristic measuring apparatus having such a configuration can easily switch between the ambient light measurement mode and the object color measurement mode.
- the spectral transmittance of the diffusing plate may be stored in advance in the storage unit, and the spectral transmittance of the diffusing plate may be compensated (subtracted) when the light source measuring unit obtains the spectral intensity distribution of the ambient light.
- the setting unit when the measurement result by the light source measurement unit is stored in the storage unit, the setting unit is further configured to set identification information corresponding to the measurement result. .
- the optical characteristic measuring apparatus having such a configuration can easily designate the observation light source and the evaluation illumination light.
- the storage unit can store a plurality of ambient light measurement results by the light source measurement unit.
- the optical characteristic measuring apparatus having such a configuration needs to measure the spectral intensity distribution of the ambient light every time the ambient light changes by appropriately reading out and using it from a plurality of ambient light measurement results.
- the convenience can be improved.
- by adding identification information such as the name of the measurement place it is possible to easily specify the plurality of ambient lights, which is particularly preferable.
- the light source measurement unit and the spectroscopic measurement unit include a circular mask that forms the measurement aperture, and a lens that collects light that has passed through the circular mask.
- the illumination light source includes A hemispherical reflection member that is provided on the opposite side of the lens with respect to the incident end of the optical fiber and reflects the illumination light from the illumination light source in the direction of the measurement aperture; and reflected light from the reflection member
- a cylindrical toroidal mirror that irradiates the object to be measured from the outside of the circular mask, and the illumination optical system and the light receiving optical system form a 45 ° a: 0 ° geometry.
- the optical characteristic measuring apparatus having such a configuration can eliminate variations due to the incident position of the light collected by the lens on the optical fiber.
- the illumination optical system and the illumination optical system constitute a 45 ° a: 0 ° geometry (a: annular) and illuminate from all directions of the object to be measured.
- the optical characteristic measuring apparatus having such a configuration can be made less susceptible to the influence of the inclination and anisotropy of the sample surface.
- an optical property measuring apparatus and an optical property measuring method capable of easily obtaining a color value under any ambient light with a single device.
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Abstract
Description
図1は、第1実施形態における色彩計の全体構成を示す斜視図であり、この図1では、本体101の測定開口31が上方を向くように図示されている。この色彩計1は、ハンディタイプの色彩計で光学特性測定装置の一例である。この色彩計1において、被測定物の測定の際には、測定者は、本体101を持ち、測定者によって測定開口31が被測定物の表面に対向(接触)するように色彩計1が配置され、被測定物の測定が実行される。本体101の測定開口31付近には、後述するように、アタッチメント102が、ねじ込みによって適宜に嵌着されるようになっており、図1(A)は,そのアタッチメント102の嵌着前の状態を示し、図1(B)は,嵌着後の状態を示している。
S1(λ)=S0(λ)*L1(λ)/L0(λ)*N(λ) ・・・(1)
ただし、N(λ)は、拡散板103の透過率データであり、前記工場で使用された比較的高精度な前記マスタ拡散板と、製品に添付されて実際の環境光測定モードに使用される比較的低精度な拡散板との透過率の比である。すなわち、この拡散板透過率データN(λ)は、実際に使用される拡散板103のロットばらつき等を補償するデータである。
R1(λ)=R0(λ)*D1(λ)/D0(λ) ・・・(2)
色彩値(三刺激値X,Y,Z)
=色の表示に用いる光の分光分布(観察光源)*測定物の分光反射率係数*等色関数(目の分光感度) ・・・(3)
図7は、第2実施形態における色彩計の模式的構成を示す物体色測定モードでの光路図である。第2実施形態における色彩計1aは、図7に示すように、前述の第1実施形態における色彩計1に類似し、対応する部分には同一の参照符号を付して示し、その説明を省略する。前述の第1実施形態における色彩計1は、測定した環境光の分光強度分布を物体色測定の観察光源6に設定しているが、一方、第2実施形態における色彩計1aは、測定した環境光の分光強度分布を物体色測定の評価用照明光に設定している。
Claims (8)
- 被測定物の色彩値を求める光学特性測定装置において、
測定開口から入射する所定の環境光の分光強度分布を測定する光源測定部と、
前記光源測定部による測定結果を記憶する記憶部と、
前記測定開口に臨む前記被測定物に前記分光強度分布が予め測定されている照明光を照射する照明光源と、
前記照明光の照射による被測定物の反射光から、該被測定物の分光反射率係数を測定する分光測定部と、
測定された前記分光反射率係数から、前記記憶部に記憶されている分光強度分布の環境光の下での前記被測定物の色彩値を求める演算部とを含むこと
を特徴とする光学特性測定装置。 - 被測定物の全分光放射率係数を求める光学特性測定装置において、
測定開口から入射する所定の環境光の分光強度分布を測定する光源測定部と、
前記光源測定部による測定結果を記憶する記憶部と、
可視光を発生する第1の光源と、前記被測定物が蛍光試料である場合に、蛍光物質を励起することができる少なくとも紫外領域を含む光を発生する第2の光源とを備え、前記測定開口に臨む前記被測定物に前記分光強度分布が予め測定されている照明光を照射する照明光源と、
前記第1および第2の光源を用いた場合における前記被測定物の反射光から、該被測定物の全分光放射率係数を測定する分光測定部と、
前記2種類の分光強度分布を持った照明光の照射によって測定された被測定物の全分光放射率係数と、前記記憶部に記憶されている環境光の分光強度分布とから、前記環境光の下での前記被測定物の全分光放射率係数を求める演算部とを含むこと
を特徴とする光学特性測定装置。 - 前記環境光の分光強度分布の測定のために前記測定開口に被せられる拡散板をさらに備え、
前記拡散板は、アタッチメントに保持されて前記測定開口に着脱されること
を特徴とする請求項1または請求項2に記載の光学特性測定装置。 - 前記記憶部に前記光源測定部による測定結果を記憶する際に、その測定結果に対応した識別情報を設定する設定部をさらに備えること
を特徴とする請求項1または請求項2に記載の光学特性測定装置。 - 前記記憶部には、前記光源測定部による複数の環境光の測定結果が記憶可能であること
を特徴とする請求項1または請求項2に記載の光学特性測定装置。 - 前記光源測定部および分光測定部は、
前記測定開口を形成する円形マスクと、
前記円形マスクを通過した光を集光するレンズと、
前記レンズで集光された光の入射位置によるばらつきを解消するための所定長さを有する光ファイバと、
前記光ファイバの出射光が入射開口から入射するポリクロユニットとを備え、
前記照明光源は、前記光ファイバの入射端に対して、前記レンズの反対側に設けられ、
前記照明光源からの前記照明光を前記測定開口方向に反射する半球状の反射部材と、
前記反射部材による反射光を前記円形マスクの外方から前記被測定物に照射する筒状のトロイダルミラーとをさらに備え、
照明光学系および受光光学系は、45°a:0°ジオメトリであること
を特徴とする請求項1または請求項2に記載の光学特性測定装置。 - 被測定物の色彩値を求める光学特性測定方法において、
所定の環境光の分光強度分布を測定し、記憶しておくステップと、
前記分光強度分布が予め測定されている照明光源からの照明光を用いて、前記被測定物の分光反射率係数を測定するステップと、
測定された前記分光反射率係数から、前記記憶されている分光強度分布の環境光の下での前記被測定物の色彩値を求めるステップとを含むこと
を特徴とする光学特性測定方法。 - 被測定物の全分光放射率係数を求める光学特性測定方法において、
所定の環境光の分光強度分布を測定し、記憶しておくステップと、
前記分光強度分布が予め測定されており、可視光を発生する第1の光源と、前記被測定物が蛍光試料である場合に、蛍光物質を励起することができる少なくとも紫外領域を含む光を発生する第2の光源からの照明光を用いて、前記被測定物の全分光放射率係数を測定するステップと、
前記2種類の分光強度分布を持った照明光の照射によって測定された被測定物の全分光放射率係数と、前記記憶されている環境光の分光強度分布とから、前記環境光の下での前記被測定物の全分光放射率係数を求めるステップとを含むこと
を特徴とする光学特性測定方法。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015102517A (ja) * | 2013-11-27 | 2015-06-04 | 株式会社リコー | 撮像装置、撮像システムおよび当該撮像装置による撮像方法 |
WO2017038819A1 (ja) * | 2015-09-02 | 2017-03-09 | コニカミノルタ株式会社 | 測色計 |
KR20190048918A (ko) * | 2017-10-31 | 2019-05-09 | 주식회사 맥사이언스 | 분광복사 및 색채휘도 동시 측정 장치 및 측정 방법 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9335210B2 (en) * | 2014-07-01 | 2016-05-10 | Osram Sylvania Inc. | Techniques for lumen maintenance and color shift compensation |
SG10201501196PA (en) * | 2015-02-16 | 2016-09-29 | Lighthaus Photonics Pte Ltd | Compact spectrometer |
WO2017151366A2 (en) | 2016-03-04 | 2017-09-08 | 3M Innovative Properties Company | Device for measuring color difference, system, and recording medium |
EP3507637A1 (en) | 2016-08-30 | 2019-07-10 | Corning Incorporated | Multi-fiber identification using jacket color |
CN106908149A (zh) * | 2017-04-11 | 2017-06-30 | 上海电机学院 | 一种机器人物体颜色识别系统及方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62284225A (ja) | 1986-06-02 | 1987-12-10 | Minolta Camera Co Ltd | 分光測定装置 |
JP2003337067A (ja) * | 2002-05-16 | 2003-11-28 | Telecommunication Advancement Organization Of Japan | 分光測定システム、色再現システム |
JP2005201694A (ja) * | 2004-01-13 | 2005-07-28 | Olympus Corp | 色票処理装置、色票処理方法及び色票処理プログラム |
JP2006292510A (ja) | 2005-04-08 | 2006-10-26 | Konica Minolta Sensing Inc | 蛍光試料の光学特性測定方法及びこれを用いた光学特性測定装置 |
JP2009181449A (ja) * | 2008-01-31 | 2009-08-13 | Sharp Corp | 画像処理装置および画像処理方法 |
WO2010021266A1 (ja) * | 2008-08-22 | 2010-02-25 | コニカミノルタセンシング株式会社 | 測色システム及び白色校正ユニット |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5272518A (en) * | 1990-12-17 | 1993-12-21 | Hewlett-Packard Company | Colorimeter and calibration system |
US6373573B1 (en) * | 2000-03-13 | 2002-04-16 | Lj Laboratories L.L.C. | Apparatus for measuring optical characteristics of a substrate and pigments applied thereto |
EP1067369B1 (de) * | 1999-07-06 | 2009-12-09 | X-Rite Europe GmbH | Lichtmessvorrichtung |
US7426029B2 (en) * | 2005-08-31 | 2008-09-16 | Microsoft Corporation | Color measurement using compact device |
US7847942B1 (en) * | 2006-12-28 | 2010-12-07 | Leapfrog Enterprises, Inc. | Peripheral interface device for color recognition |
JP5233529B2 (ja) * | 2008-09-05 | 2013-07-10 | コニカミノルタオプティクス株式会社 | 分光特性測定装置およびその校正方法ならびに分光特性測定システム |
-
2012
- 2012-03-26 WO PCT/JP2012/002067 patent/WO2012132380A1/ja active Application Filing
- 2012-03-26 JP JP2013507167A patent/JP5679045B2/ja active Active
- 2012-03-26 EP EP12765434.1A patent/EP2693179A4/en not_active Ceased
- 2012-03-26 US US14/008,992 patent/US20140022535A1/en not_active Abandoned
-
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62284225A (ja) | 1986-06-02 | 1987-12-10 | Minolta Camera Co Ltd | 分光測定装置 |
JP2003337067A (ja) * | 2002-05-16 | 2003-11-28 | Telecommunication Advancement Organization Of Japan | 分光測定システム、色再現システム |
JP2005201694A (ja) * | 2004-01-13 | 2005-07-28 | Olympus Corp | 色票処理装置、色票処理方法及び色票処理プログラム |
JP2006292510A (ja) | 2005-04-08 | 2006-10-26 | Konica Minolta Sensing Inc | 蛍光試料の光学特性測定方法及びこれを用いた光学特性測定装置 |
JP2009181449A (ja) * | 2008-01-31 | 2009-08-13 | Sharp Corp | 画像処理装置および画像処理方法 |
WO2010021266A1 (ja) * | 2008-08-22 | 2010-02-25 | コニカミノルタセンシング株式会社 | 測色システム及び白色校正ユニット |
Non-Patent Citations (1)
Title |
---|
See also references of EP2693179A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015102517A (ja) * | 2013-11-27 | 2015-06-04 | 株式会社リコー | 撮像装置、撮像システムおよび当該撮像装置による撮像方法 |
WO2017038819A1 (ja) * | 2015-09-02 | 2017-03-09 | コニカミノルタ株式会社 | 測色計 |
JPWO2017038819A1 (ja) * | 2015-09-02 | 2018-06-21 | コニカミノルタ株式会社 | 測色計 |
US10337922B2 (en) | 2015-09-02 | 2019-07-02 | Konica Minolta, Inc. | Colorimeter |
KR20190048918A (ko) * | 2017-10-31 | 2019-05-09 | 주식회사 맥사이언스 | 분광복사 및 색채휘도 동시 측정 장치 및 측정 방법 |
KR102024812B1 (ko) | 2017-10-31 | 2019-11-04 | 주식회사 맥사이언스 | 분광복사 및 색채휘도 동시 측정 장치 및 측정 방법 |
Also Published As
Publication number | Publication date |
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JP5812178B2 (ja) | 2015-11-11 |
JP5679045B2 (ja) | 2015-03-04 |
EP2693179A4 (en) | 2014-12-17 |
EP2693179A1 (en) | 2014-02-05 |
US20140022535A1 (en) | 2014-01-23 |
JPWO2012132380A1 (ja) | 2014-07-24 |
JP2015052616A (ja) | 2015-03-19 |
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