WO2019235054A1 - Optical characteristic measurement device and measurement device mounting table - Google Patents

Optical characteristic measurement device and measurement device mounting table Download PDF

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Publication number
WO2019235054A1
WO2019235054A1 PCT/JP2019/015356 JP2019015356W WO2019235054A1 WO 2019235054 A1 WO2019235054 A1 WO 2019235054A1 JP 2019015356 W JP2019015356 W JP 2019015356W WO 2019235054 A1 WO2019235054 A1 WO 2019235054A1
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WO
WIPO (PCT)
Prior art keywords
measurement
calibration reference
calibration
reference member
measurement opening
Prior art date
Application number
PCT/JP2019/015356
Other languages
French (fr)
Japanese (ja)
Inventor
大貴 青松
祐司 延本
利夫 河野
Original Assignee
コニカミノルタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 JP2020523541A priority Critical patent/JP7456380B2/en
Publication of WO2019235054A1 publication Critical patent/WO2019235054A1/en

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/57—Measuring gloss

Definitions

  • the present invention relates to an optical property measuring device and a measuring device mounting table for measuring predetermined optical properties such as color and gloss.
  • Patent Document 1 discloses an optical characteristic measuring apparatus.
  • the optical characteristic measuring apparatus disclosed in Patent Document 1 has a measurement aperture and has an optical measurement unit that measures the gloss of a measurement object facing the measurement aperture by using an optical system having a predetermined geometry.
  • a calibration reference member used for gloss calibration includes a calibration reference plate and a protective cover portion that opens at one end side and stores the calibration reference plate.
  • the gloss value of the calibration reference plate is measured by the optical measurement unit to obtain the gloss reference value, and the gloss level of the measurement target is calculated based on the gloss reference value.
  • the gloss value of the calibration reference plate may be measured by the optical measurement unit in a state where the protective cover unit and the measurement apparatus main body are not completely locked.
  • the calibration reference plate is tilted from a predetermined posture position with respect to the measuring apparatus main body and abuts only on a part of the peripheral portion of the measurement opening in the measuring apparatus main body.
  • a gap is generated between the calibration reference plate and the peripheral portion of the measurement opening of the measuring apparatus main body, which may cause variations in the gloss value of the calibration reference plate.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an optical characteristic measuring apparatus and a measuring apparatus mounting base that can perform calibration with higher accuracy and accuracy.
  • an optical characteristic measuring apparatus and a measuring apparatus mounting table reflecting one aspect of the present invention are provided with a calibration reference member used for calibration of predetermined optical characteristics, and the calibration reference member facing the measurement aperture.
  • the calibration reference member includes a pressing mechanism that contacts and presses the calibration reference member in a region inside the measurement opening in the calibration reference member.
  • FIG. 3 is an enlarged perspective view of a part of the measuring device mounting base. It is an expanded sectional view of the important section in the state where the measurement opening formation member provided in the measuring device main part was inserted in the 1st calibration part provided in the measuring device mounting stand. It is explanatory drawing at the time of irradiating light to the calibration reference board provided in the 1st calibration part in the state of FIG.
  • FIG. 1 is a perspective view of an optical characteristic measuring apparatus according to an embodiment.
  • FIG. 2 is a side view of a measuring apparatus main body included in the optical characteristic measuring apparatus.
  • FIG. 3 is a bottom view of the measurement apparatus main body.
  • FIG. 4 is a perspective view of a main part in which a part of a measuring device mounting table included in the optical characteristic measuring device is shown in cross section.
  • FIG. 5 is an enlarged perspective view of a part of the measuring device mounting base.
  • the Z1-Z2 direction in the figure is the vertical direction
  • the Z1 direction is the upward direction
  • the Z2 direction is the downward direction.
  • the optical property measuring apparatus 1 in this embodiment includes a measuring apparatus main body 100 and a measuring apparatus mounting base 2 on which the measuring apparatus main body 100 is detachably mounted.
  • the measuring apparatus main body 100 includes a main body housing 102 and an optical characteristic measuring unit provided in the main body housing 102 as shown in FIGS.
  • the main body housing 102 includes an upper wall 121, side walls 122, 123, 124, 125, and a bottom wall 126. From the upper wall 121, the side walls 122, 123, 124, and 125 and the bottom wall 126, a substantially rectangular parallelepiped housing that accommodates the optical characteristic measurement unit is formed.
  • the upper wall 121 holds a monitor 134 of the optical characteristic measurement unit, and the measurement value measured by the optical characteristic measurement unit, for example, is displayed on the monitor 134.
  • a measurement opening 130 is formed in the bottom wall 126.
  • the measurement opening 130 is formed in a measurement opening forming member (target mask) 127 provided in the bottom wall 126.
  • the measurement aperture forming member 127 is a disc-shaped member, and a circular measurement aperture 130 is formed at the center.
  • the measurement opening forming member 127 is held by the bottom wall 126 so as to protrude outward from the bottom wall 126.
  • the optical property measurement unit is configured to measure a plurality of different optical properties in a measurement object facing the measurement aperture 130 by using a plurality of optical systems having different geometries.
  • the optical characteristic measurement unit includes the above-described measurement opening 130 formed in the bottom wall 126 of the main body housing 102 and a gloss measurement unit (not shown) that measures the gloss of the measurement object disposed in the measurement opening 130. 1), a colorimetry unit (not shown) for measuring the color of the measurement object arranged in the measurement opening 130, and a gloss value and a color value are obtained based on the measurement data obtained by the gloss measurement unit and the colorimetry unit.
  • a control unit (not shown) is provided.
  • the gloss measuring unit includes a gloss measuring light source 131, a gloss measuring light receiving unit 132, and the like, and these are configured to have a gloss geometry.
  • the gloss measuring unit configured as described above irradiates light from the gloss measurement light source 131 to the measurement target portion to be measured facing the measurement opening 130, and further reflects the light reflected by the measurement target by the gloss measurement light receiving unit 132. Receives light and detects gloss data. Then, based on the gloss data relating to the detected gloss, the control unit obtains the gloss value by a known method, and the obtained gloss value is displayed on the monitor 134.
  • the colorimetric unit includes a light source for colorimetry measurement, a light-receiving unit for colorimetry measurement, and the like, similar to the gloss measurement unit, and the colorimetry unit configured in this way is used for colorimetry measurement.
  • Light is applied to the measurement site of the measurement object facing the measurement aperture 130 from the light source, and the light reflected by the measurement object is received by the light-receiving unit for color measurement measurement to detect color measurement data, and the detected color measurement data
  • the control unit obtains the color value by a known method, and the obtained color value is displayed on the monitor 134.
  • the measuring device mounting base 2 is a substantially rectangular parallelepiped mounting base 21, and gloss (optical characteristic) calibration provided along the longitudinal direction of the mounting housing 21.
  • the first calibration unit 3a, the second calibration unit 3b for color (optical characteristics) calibration, and the zero calibration unit 4 are provided.
  • the first calibration unit 3 a includes a measurement opening forming member insertion portion 31 formed on the upper wall 211 of the mounting housing 21, a calibration reference member 32 used for gloss calibration, and a calibration reference member. And a pressing mechanism 33 for pressing 32.
  • the measurement opening forming member insertion portion 31 is formed with a predetermined depth and substantially the same diameter as the measurement opening forming member 127 so that the measurement opening forming member 127 can be inserted into the upper wall 211 of the mounting housing 21. .
  • the calibration reference member 32 includes a disk-shaped calibration reference plate 321a for gloss calibration and a holding member 322 for holding the calibration reference plate 321a.
  • the calibration reference plate 321a is a member having a diameter larger than that of the measurement opening 130 of the measurement opening forming member 127 and a size capable of contacting the entire periphery of the measurement opening 130 of the measurement opening forming member 127.
  • the holding member 322 includes a reference plate holding portion 323 that holds the calibration reference plate 321a on the upper side thereof.
  • the reference plate holding portion 323 includes a receiving plate 324 that receives the calibration reference plate 321a from the lower side, and a peripheral wall 325 that extends upward from the outer peripheral edge of the receiving plate 324 so as to surround the receiving plate 324.
  • the upper surface of the calibration reference plate 321a held by the reference plate holding portion 323 is exposed (so as to face the outside).
  • the height of the peripheral wall 325 is formed lower than the thickness of the calibration reference plate 321a, and the calibration reference plate 321a held by the reference plate holding part 323 protrudes above the reference plate holding part 323. ing.
  • a substantially hemispherical recess (engagement portion) 326 that engages with a contact portion 334 of a pressing mechanism 33 described later is formed at a substantially central portion (substantially central position) of the lower surface of the receiving plate 324 of the holding member 322. .
  • the calibration reference member 32 configured in this manner protrudes from the lower side to the lower side of the measurement opening forming member insertion portion 31 in the mounting housing 21 with the calibration reference plate 321a held by the holding member 322.
  • the inside of the measurement opening forming member insertion portion 31 is arranged so as to be movable up and down. Therefore, when the measurement opening forming member 127 is inserted into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 and the upper surface of the calibration reference plate 321a come into contact with each other.
  • the recess 326 of the receiving plate 324 of the holding member 322 is disposed substantially at the center of the measurement opening forming member insertion portion 31, and the measurement opening forming member insertion portion
  • the measurement opening forming member 127 inserted and inserted into 31 is positioned substantially at the center of the measurement opening 130.
  • the pressing mechanism 33 includes a pressing plate 331 and a coil spring (biasing member) 332 that biases the pressing plate 331.
  • the pressing plate 331 includes a disk-shaped main body 333 and a contact portion (engaged portion) 334 that contacts the calibration reference plate 321a of the calibration reference member 32.
  • the abutting portion 334 includes a projecting portion that protrudes upward from the main body portion 333 integrally with the main body portion 333 at the central portion of the main body portion 333.
  • the contact part 334 of this embodiment is formed at the tip of the cylindrical part in a hemispherical surface (curved surface) that can be engaged with and engaged with the recess 326 of the holding member 322.
  • the pressing plate 331 is disposed on the lower side of the holding member 322 in a state where the contact portion 334 is fitted in the concave portion 326 of the holding member 322.
  • the coil spring 332 is disposed on the lower side of the pressing plate 331, and the upper end of the coil spring 332 is locked to the lower surface of the pressing plate 331, and the lower end of the coil spring 332 is locked to the mounting housing 21.
  • the spring 332 biases the pressing plate 331 upward. As a result, the substantially central portion of the holding member 322 is biased upward via the contact portion 334 of the pressing plate 331.
  • the measurement opening forming member 127 when the measurement opening forming member 127 is inserted into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 and the upper surface of the calibration reference plate 321a come into contact with each other. The upper surface of the abutting calibration reference plate 321a is pressed against the measurement aperture forming member 127.
  • the second calibration unit 3b is different from the first calibration unit 3a in which the calibration reference plate 321a for gloss calibration is used in that a calibration reference plate 321b for color calibration is used.
  • the other configuration of the second calibration unit 3b is the same as that of the first calibration unit 3a.
  • the calibration reference plate 321b for color calibration has the same shape as the calibration reference plate 321a for gloss calibration.
  • the zero calibration unit 4 includes a zero calibration measurement opening forming member insertion portion 41 formed on the upper wall 211 of the mounting housing 21 and a zero calibration measurement opening formation member insertion portion. 41 and a communication hole 42 communicating with the inside of the mounting housing 21, and the measurement apparatus main body 100 is in a state in which the measurement opening forming member 127 is inserted into the second measurement opening forming member insertion portion 41.
  • the optical property measuring unit can be zero-calibrated by performing a predetermined operation.
  • the calibration reference plates 321a and 321b of the first calibration unit 3a and the second calibration unit 3b are covered with a protective cover 328 as shown in FIG. It is possible to prevent dust and the like from adhering to the calibration reference plates 321a and 321b, and to prevent damage caused by other objects hitting the calibration reference plates 321a and 321b.
  • FIG. 6 is an enlarged cross-sectional view of a main part in a state in which a measurement opening forming member provided in the measurement apparatus main body is fitted into a first calibration part provided in the measurement apparatus mounting base.
  • FIG. 7 is an explanatory diagram when light is applied to the calibration reference plate provided in the first calibration unit in the state of FIG.
  • FIG. 8 is an explanatory diagram when light is applied to the calibration reference plate of the calibration unit in the comparative example.
  • FIG. 9 is a graph showing data obtained by measuring the optical characteristic values (gloss values) of the calibration reference plates of the measurement device table of the embodiment and the measurement device table of the comparative example.
  • the user When performing calibration for gloss measurement, the user removes the protective cover 328 of the first calibration unit 3a, and forms the measurement opening forming member 127 of the measurement apparatus main body 100 as shown in FIG. It is inserted into the member insertion part 31. At that time, the inner periphery of the peripheral wall of the measurement opening forming member insertion portion 31 guides the measurement opening forming member 127, and the measurement opening forming member 127 smoothly enters the measurement opening forming member insertion portion 31.
  • the measurement aperture forming member 127 When the measurement aperture forming member 127 enters the measurement aperture forming member insertion portion 31, the lower surface (outer surface) of the measurement aperture forming member 127 comes into contact with the calibration reference plate 321a for gloss calibration, and further, the measurement aperture is formed.
  • the measurement opening forming member 127 When the member 127 is pushed into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 is inserted in a state where the calibration reference plate 321 a for gloss calibration is pushed down against the biasing force of the coil spring 332. .
  • the calibration reference plate 321a for gloss calibration is attached to the lower surface (outer surface) of the measurement aperture forming member 127 with the coil spring 332 attached in a state where the measurement aperture forming member 127 is inserted into the measurement aperture forming member insertion portion 31. It becomes a state pressed by the power.
  • the coil spring 332 presses the calibration reference plate 321a through the contact portion 334 of the pressing plate 331 and the holding member 322 at a portion corresponding to the center of the measurement opening 130 in the measurement opening forming member 127.
  • the urging force is applied to the entire circumference of the measurement opening 130 in the measurement opening forming member 127 substantially evenly.
  • the calibration reference plate 321a for gloss calibration when the end of the calibration reference plate 321a is pressed by a spring, the calibration reference plate 321a for gloss calibration is against the measurement aperture forming member 127 as shown in FIG.
  • a gap t is likely to be generated between a part of the circumference of the measurement opening 130 and the calibration reference plate 321a for gloss calibration, which is inclined from a predetermined position. Therefore, in this case, there is a possibility that the gloss measurement value of the calibration reference plate 321a for gloss calibration may vary, and it is difficult to accurately reproduce the gloss value of the calibration reference plate 321a for gloss calibration, and highly accurate calibration is performed. It's hard to do.
  • the biasing force of the coil spring 332 is applied substantially uniformly to the entire circumference of the measurement opening 130 in the measurement opening forming member 127. Therefore, as shown in FIG. 7, a calibration reference plate 321a for gloss calibration is provided. Is more reliably disposed at a predetermined position without inclining with respect to the measurement aperture forming member 127, and the entire circumference of the measurement aperture 130 abuts against the calibration reference plate 321a for gloss calibration, and the circumference of the measurement aperture 130 And a calibration reference plate 321a for gloss calibration are hardly generated. Therefore, there is little possibility that the gloss value of the calibration reference plate 321a for gloss calibration will vary, and the gloss value of the calibration reference plate 321a for gloss calibration can be more accurately reproduced and calibration can be performed with high accuracy.
  • the gloss value of the calibration reference plate 321a for gloss calibration is desorbed each time for each of the optical property measuring apparatus 1 of the present embodiment (the product of the present embodiment) and the comparative example shown in FIG.
  • the measurement was performed 20 times, and for each gloss value, the difference from the gloss value measured at the first time was obtained.
  • the horizontal axis in FIG. 9 is the number of measurements, and the vertical axis is the difference from the first measurement value.
  • the user removes the protective cover 328 of the second calibration unit 3b and removes the measurement opening forming member 127 of the measurement apparatus main body 100 from the measurement apparatus, as in the case of the above-described gloss calibration.
  • the measurement opening forming member insertion portion 31 of the table 2 is inserted. Even in this case, the inner periphery of the peripheral wall of the measurement opening forming member insertion portion 31 guides the measurement opening forming member 127, and the measurement opening formation member 127 smoothly enters the measurement opening formation member insertion portion 31.
  • the calibration reference plate 321b for color calibration is pressed against the measurement aperture forming member 127 by the biasing force of the coil spring 332 in a state where the measurement aperture forming member 127 is inserted into the measurement aperture forming member insertion portion 31. It becomes a state.
  • the coil spring 332 presses the calibration reference plate 321b through the contact portion 334 of the pressing plate 331 and the holding member 322 at the portion corresponding to the center of the measurement opening 130 in the measurement opening forming member 127.
  • the biasing force of the spring 332 is applied to the entire circumference of the measurement opening 130 in the measurement opening forming member 127 substantially evenly.
  • the calibration reference plate 321b for color calibration is more reliably arranged at a predetermined position without being inclined with respect to the measurement aperture forming member 127, and the entire peripheral portion of the measurement aperture 130 is calibrated for color calibration.
  • a gap is less likely to occur between the peripheral portion of the measurement opening 130 and the calibration reference plate 321b for color calibration, in contact with the reference plate 321b. Therefore, there is little possibility of variations in the color values of the calibration reference plate 321b for color calibration, the color calibration values of the calibration reference plate 321b for color calibration can be accurately reproduced, and highly accurate calibration can be performed.
  • FIG. 10 is an explanatory diagram of a main part of another embodiment of the measuring device mounting base.
  • FIG. 11 is a cross-sectional view of another embodiment of a measurement aperture forming member provided in the measurement apparatus.
  • the recess 326 is provided in the receiving plate 324 of the holding member 322, and the contact portion 334 including the protruding portion that fits into the recess 326 is provided in the pressing plate 331.
  • the receiving plate 324 a of the holding member 322 a is provided with a protruding portion 326 a that protrudes downward from the receiving plate 324 a and the pressing plate 331 a is fitted with the protruding portion 326 a.
  • An abutting portion 334a may be provided and can be changed as appropriate.
  • the coil spring 332 was a thing with the diameter of an upper end smaller than the diameter of a lower end, the coil spring 332 is not specifically limited, For example, as shown in FIG.
  • the coil spring 332a may have substantially the same diameter at the lower end.
  • the outer surface (lower surface) 128 which is a facing surface facing the calibration reference plates 321a and 321b in the calibration in the measurement aperture forming member 127 may be a flat surface. However, as shown in FIG. In at least the peripheral region of 130, it gradually protrudes outward (in the direction from the inside to the outside along the normal direction of the opening surface of the measurement opening 130) toward the peripheral edge 128 a of the measurement opening 130 (as it goes inward in the radial direction).
  • the peripheral edge 128a of the measurement opening 130 may be formed in a bulging shape or a tapered shape that protrudes outward most.
  • the entire periphery 128a of the measurement opening 130 in the measurement opening forming member 127 can be more reliably brought into contact with the calibration reference plates 321a and 321b.
  • the amount of protrusion from the outer peripheral end of the measurement opening forming member 127 to the peripheral edge 128a of the measurement opening 130 may be, for example, about several ⁇ m. In FIG. 11, from the outer peripheral end of the measurement opening forming member 127 to the peripheral edge 128a of the measurement opening 130. The amount of protrusion is exaggerated.
  • the measuring apparatus main body 100 is capable of measuring gloss and color, but may be any instrument that can measure either gloss or color, for example.
  • the measuring device table 2 also includes a first calibration unit 3a for gloss calibration, a second calibration unit 3b for color calibration, and a zero calibration unit 4, but the first calibration unit 3a for gloss calibration and the color are also provided. Any device provided with at least one of the second calibration unit 3b for calibration may be used and can be appropriately changed.
  • the coil spring 332 is used, and the calibration reference member 32 forms the measurement opening by pressing the abutting portion 334 of the pressing plate 331 against the substantially central portion of the holding member 322 by the coil spring 332.
  • the member 127 is pressed at a portion corresponding to the substantially central portion of the measurement opening 130.
  • the present invention is not limited to this configuration.
  • a plate spring is used, and the calibration reference member 32 is a measurement opening forming member 127 using the plate spring. May be pressed at a portion corresponding to the inner side (inner peripheral side) of the measurement opening 130 in FIG.
  • the press mechanism 33 is provided with the press plate 331 and the coil spring 332, the press mechanism 33 is comprised only from the coil spring 332, for example, the thing which does not have the press plate 331. But it ’s okay.
  • the pressing mechanism 33 is composed only of the coil spring 332 and the upper end of the coil spring 332 is brought into contact with the calibration reference member 32, the upper end of the coil spring 332 is smaller than the diameter of the measurement opening 130, and the calibration reference member 32.
  • what is necessary is just to contact
  • An optical property measurement apparatus includes an optical property measurement unit that has a measurement aperture and measures a predetermined optical property in a measurement object facing the measurement aperture by using an optical system having a predetermined geometry; When the calibration reference member used for calibration of optical characteristics and the calibration reference member are exposed to the measurement aperture, the calibration reference member is brought into contact with a region inside the measurement aperture in the optical property measurement unit, A pressing mechanism for pressing.
  • the optical property measuring apparatus can perform calibration with higher accuracy and more accurately, and can obtain the optical property of the measurement object with high accuracy.
  • the pressing mechanism includes a pressing plate and a biasing member that biases the pressing plate so that the pressing plate presses the calibration reference member at the portion.
  • the biasing member is a coil spring
  • the pressing plate is a plate-like shape that engages with the coil spring so as to be biased by the coil spring.
  • a main body and a contact portion provided on the main body so as to contact the calibration reference member so as to press the calibration reference member at the portion.
  • Such an optical characteristic measuring apparatus can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measuring unit.
  • the contact portion is a curved surface.
  • Such an optical characteristic measuring apparatus can press the calibration reference member with a small contact area, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
  • the contact portion has a protruding shape.
  • an optical characteristic measuring apparatus in which the abutting portion has a protruding shape is provided.
  • a portion of the calibration reference member that is in contact with the contact portion has a protruding shape.
  • an optical characteristic measuring apparatus in which a portion of the calibration reference member that is in contact with the contact portion has a protruding shape.
  • the measurement aperture forming member in which the measurement aperture is formed is provided, and the measurement aperture forming member is arranged at a peripheral edge of the measurement aperture in a peripheral region of the measurement aperture.
  • the measurement opening gradually protrudes outward, and the peripheral edge of the measurement opening protrudes outward most.
  • Such an optical characteristic measuring apparatus can easily apply the calibration reference member to the entire periphery of the measurement opening, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
  • the measurement device body including the optical property measurement unit, the calibration reference member, and the pressing mechanism, and the measurement device body is detachably mounted.
  • a pedestal A pedestal.
  • Such an optical characteristic measurement apparatus can press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit by placing the measurement apparatus main body on the measurement apparatus mounting base. Therefore, the optical property measuring apparatus can easily and reliably press the calibration reference member against the entire circumference of the measurement opening in the optical property measuring unit.
  • a measuring apparatus mounting base has a measurement aperture, and by using an optical system having a predetermined geometry, a measurement apparatus main body for measuring a predetermined optical characteristic in a measurement object facing the measurement aperture is detachably mounted.
  • a pressing mechanism that contacts and presses in a region inside the measurement opening.
  • the calibration reference member can be made to face the measurement opening, and the portion where the calibration reference member hits the inside of the measurement opening in the optical property measuring unit by the pressing mechanism. Can be pressed.
  • the calibration reference member can be pressed against the entire circumference of the measurement opening in the optical characteristic measurement unit, and the calibration reference member is more reliably disposed at a predetermined position with respect to the optical characteristic measurement unit. Variations in the optical characteristic values are unlikely to occur, reproducibility is ensured, and an accurate optical characteristic reference value can be obtained more reliably. Therefore, the measurement apparatus table can be calibrated with high accuracy and more reliably.
  • the pressing mechanism includes a pressing plate, and a biasing member that biases the pressing plate so that the pressing plate presses the calibration reference member at the portion. Is provided.
  • the calibration reference member can be reliably pressed against the entire circumference of the measurement opening in the optical characteristic measurement unit.
  • the biasing member is a coil spring
  • the pressing plate is engaged with the coil spring so as to be biased by the coil spring.
  • a contact portion that is provided on the main body portion and contacts the calibration reference member so as to press the calibration reference member at the portion.
  • Such a measuring apparatus mounting base can press the calibration reference member more securely against the entire circumference of the measurement opening in the optical characteristic measuring section.
  • the contact portion is a curved surface.
  • Such a measuring apparatus mounting base can press the calibration reference member with a small contact area, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
  • the calibration reference member includes a calibration reference plate used for calibration of the predetermined optical characteristic, and a holding member that holds the calibration reference plate, and the holding The member includes an engagement portion that engages with the contact portion.
  • the contact portion is a protrusion
  • the engagement portion is a recess into which the protrusion is fitted.
  • the engaging portion is a protruding portion
  • the abutting portion is a concave portion into which the protruding portion is fitted.
  • Such a measuring device mounting base includes an engaging portion that engages the abutting portion with the holding member, so that the abutting portion can be easily and reliably disposed at a predetermined position, and the calibration reference plate is surely applied to the inside of the measurement opening. It can be pressed at the part.
  • the optical characteristic measuring apparatus and measuring device mounting stand which measure a predetermined optical characteristic can be provided.

Abstract

An optical characteristic measurement device and measurement device mounting table according to this invention comprise a calibration reference member used for the calibration of a prescribed optical characteristic and a pressing mechanism that is in contact with and presses the calibration reference member in an area inside a measurement opening when the calibration reference member is made to face the measurement opening.

Description

光学特性測定装置および測定装置置台Optical characteristic measuring device and measuring device table
　本発明は、例えば色、光沢などの所定の光学特性を測定する光学特性測定装置および測定装置置台に関する。 The present invention relates to an optical property measuring device and a measuring device mounting table for measuring predetermined optical properties such as color and gloss.
　従来から、色、光沢などの所定の光学特性を測定する光学特性測定装置は知られており、例えば特許文献１に、光学特性測定装置が開示されている。この特許文献１に開示された光学特性測定装置は、測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における光沢を測定する光学測定部を有する測定装置本体と、光沢の校正に用いられる校正基準部材とを備えたものである。校正基準部材は、校正基準板と、一端側を開口し、校正基準板を収納した保護カバー部とから構成されている。そして、測定対象の光沢測定に際し、まず、保護カバー部に一端側から校正基準板を収納して保護カバー部と校正基準板とが係止されることによって、保護カバー部に収納した校正基準板が測定装置本体の測定開口の周部の全周に当接して測定開口全体を覆う状態にされる。そして、その状態で、光学測定部によって校正基準板の光沢値が測定されて光沢基準値とされ、その光沢基準値に基いて測定対象の光沢度が算出される。 2. Description of the Related Art Conventionally, an optical characteristic measuring apparatus that measures predetermined optical characteristics such as color and gloss is known. For example, Patent Document 1 discloses an optical characteristic measuring apparatus. The optical characteristic measuring apparatus disclosed in Patent Document 1 has a measurement aperture and has an optical measurement unit that measures the gloss of a measurement object facing the measurement aperture by using an optical system having a predetermined geometry. And a calibration reference member used for gloss calibration. The calibration reference member includes a calibration reference plate and a protective cover portion that opens at one end side and stores the calibration reference plate. When measuring the gloss of the measurement object, first, the calibration reference plate is stored in the protective cover portion by storing the calibration reference plate from one end in the protective cover portion and locking the protective cover portion and the calibration reference plate. Is in contact with the entire circumference of the circumference of the measurement opening of the measurement apparatus main body so as to cover the entire measurement opening. In this state, the gloss value of the calibration reference plate is measured by the optical measurement unit to obtain the gloss reference value, and the gloss level of the measurement target is calculated based on the gloss reference value.
　ところで、前記特許文献１では、保護カバー部と測定装置本体とが完全に係止状態にならない状態で、光学測定部によって校正基準板の光沢値が測定される場合も起こり得る。保護カバー部と測定装置本体とが完全に係止状態にならない場合では、校正基準板が測定装置本体に対する所定の姿勢位置から傾いて測定装置本体における測定開口の周部の一部とのみ当接して校正基準板と測定装置本体の測定開口の周部との間に隙間が生じた状態になり、校正基準板の光沢値にバラツキが生じる虞がある。したがって、前記特許文献１では、校正基準板の光沢値が変動してしまい、再現性が低く、校正の精度が低くなる虞があり、その結果、測定対象の光沢度の精度が低くなってしまう。 By the way, in Patent Document 1, the gloss value of the calibration reference plate may be measured by the optical measurement unit in a state where the protective cover unit and the measurement apparatus main body are not completely locked. When the protective cover part and the measuring apparatus main body are not completely locked, the calibration reference plate is tilted from a predetermined posture position with respect to the measuring apparatus main body and abuts only on a part of the peripheral portion of the measurement opening in the measuring apparatus main body. As a result, a gap is generated between the calibration reference plate and the peripheral portion of the measurement opening of the measuring apparatus main body, which may cause variations in the gloss value of the calibration reference plate. Therefore, in the above-mentioned Patent Document 1, the gloss value of the calibration reference plate fluctuates, there is a risk that the reproducibility is low and the accuracy of calibration is lowered, and as a result, the accuracy of the glossiness of the measurement object is lowered. .
特開２０１０－１２７６６０号公報JP 2010-127660 A
　本発明は、上述の事情に鑑みて為された発明であり、その目的は、より確実に、精度の高い校正ができる光学特性測定装置および測定装置置台を提供することである。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an optical characteristic measuring apparatus and a measuring apparatus mounting base that can perform calibration with higher accuracy and accuracy.
　上述した目的を実現するために、本発明の一側面を反映した光学特性測定装置および測定装置置台は、所定の光学特性の校正に用いられる校正基準部材と、前記校正基準部材を測定開口に臨ませた場合に、前記校正基準部材を、前記校正基準部材における前記測定開口の内側の領域において接触し、押圧する押圧機構とを備え、前記光学特性測定装置は、前記測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における所定の光学特性を測定する装置である。 In order to achieve the above-described object, an optical characteristic measuring apparatus and a measuring apparatus mounting table reflecting one aspect of the present invention are provided with a calibration reference member used for calibration of predetermined optical characteristics, and the calibration reference member facing the measurement aperture. The calibration reference member includes a pressing mechanism that contacts and presses the calibration reference member in a region inside the measurement opening in the calibration reference member. This is an apparatus for measuring a predetermined optical characteristic of a measurement object facing the measurement aperture by using an optical system having the following geometry.
　発明の１または複数の実施形態により与えられる利点および特徴は、以下に与えられる詳細な説明および添付図面から十分に理解される。これら詳細な説明及び添付図面は、例としてのみ与えられるものであり本発明の限定の定義として意図されるものではない。 The advantages and features afforded by one or more embodiments of the invention will be more fully understood from the detailed description and accompanying drawings provided below. The detailed description and the accompanying drawings are given by way of example only and are not intended as a definition of the limitations of the invention.
実施形態における光学特性測定装置の斜視図である。It is a perspective view of the optical characteristic measuring device in an embodiment. 前記光学特性測定装置が有する測定装置本体の側面図である。It is a side view of the measuring apparatus main body which the said optical characteristic measuring apparatus has. 前記測定装置本体の底面図である。It is a bottom view of the said measuring apparatus main body. 前記光学特性測定装置が有する測定装置置台の一部を断面にした要部の斜視図である。It is the perspective view of the principal part which made a cross section the part of measuring device mounting stand which the said optical characteristic measuring device has. 前記測定装置置台の一部の拡大斜視図である。FIG. 3 is an enlarged perspective view of a part of the measuring device mounting base. 前記測定装置置台に設けられた第１校正部に測定装置本体に設けられた測定開口形成部材を嵌挿した状態の要部の拡大断面図である。It is an expanded sectional view of the important section in the state where the measurement opening formation member provided in the measuring device main part was inserted in the 1st calibration part provided in the measuring device mounting stand. 図６の状態で、第１校正部に設けられた校正基準板に光を当てた際の説明図である。It is explanatory drawing at the time of irradiating light to the calibration reference board provided in the 1st calibration part in the state of FIG. 比較例における校正部の校正基準板に光を当てた際の説明図である。It is explanatory drawing at the time of irradiating light to the calibration reference board of the calibration part in a comparative example. 実施形態の測定装置置台と比較例の測定装置置台とのそれぞれの校正基準板の光学特性値（光沢値）を測定したデータをグラフに表した図である。It is the figure which represented the data which measured the optical characteristic value (gloss value) of each calibration reference board of the measuring device mounting base of embodiment, and the measuring device mounting base of a comparative example in the graph. 前記測定装置置台の他の実施形態の要部の説明図である。It is explanatory drawing of the principal part of other embodiment of the said measuring device mounting base. 前記測定装置に設けられた測定開口形成部材の他の実施形態の断面図である。It is sectional drawing of other embodiment of the measurement opening formation member provided in the said measuring apparatus.
　以下、図面を参照して、本発明の１または複数の実施形態が説明される。しかしながら、発明の範囲は、開示された実施形態に限定されない。なお、各図において同一の符号を付した構成は、同一の構成であることを示し、適宜、その説明を省略する。本明細書において、総称する場合には添え字を省略した参照符号で示し、個別の構成を指す場合には添え字を付した参照符号で示す。 Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably. In this specification, when referring generically, it shows with the reference symbol which abbreviate | omitted the suffix, and when referring to an individual structure, it shows with the reference symbol which attached the suffix.
　図１は、実施形態における光学特性測定装置の斜視図である。図２は、前記光学特性測定装置が有する測定装置本体の側面図である。図３は、前記測定装置本体の底面図である。図４は、前記光学特性測定装置が有する測定装置置台の一部を断面にした要部の斜視図である。図５は、前記測定装置置台の一部の拡大斜視図である。なお、以下の説明において、図中のＺ１―Ｚ２方向を上下方向とし、Ｚ１方向を上方向、Ｚ２方向を下方向として説明する。 FIG. 1 is a perspective view of an optical characteristic measuring apparatus according to an embodiment. FIG. 2 is a side view of a measuring apparatus main body included in the optical characteristic measuring apparatus. FIG. 3 is a bottom view of the measurement apparatus main body. FIG. 4 is a perspective view of a main part in which a part of a measuring device mounting table included in the optical characteristic measuring device is shown in cross section. FIG. 5 is an enlarged perspective view of a part of the measuring device mounting base. In the following description, the Z1-Z2 direction in the figure is the vertical direction, the Z1 direction is the upward direction, and the Z2 direction is the downward direction.
　本実施形態における光学特性測定装置１は、図１に示すように、測定装置本体１００と、測定装置本体１００を着脱可能に載置する測定装置置台２とを備える。 As shown in FIG. 1, the optical property measuring apparatus 1 in this embodiment includes a measuring apparatus main body 100 and a measuring apparatus mounting base 2 on which the measuring apparatus main body 100 is detachably mounted.
　測定装置本体１００は、図１ないし図３に示すように、本体ハウジング１０２と、本体ハウジング１０２内に設けられた光学特性測定部とを備えている。 The measuring apparatus main body 100 includes a main body housing 102 and an optical characteristic measuring unit provided in the main body housing 102 as shown in FIGS.
　本体ハウジング１０２は、上壁１２１と、側壁１２２、１２３、１２４、１２５と、底壁１２６とを備える。これら上壁１２１、側壁１２２、１２３、１２４、１２５および底壁１２６から、前記光学特性測定部を収容する、大略、直方体状の筐体が形成される。 The main body housing 102 includes an upper wall 121, side walls 122, 123, 124, 125, and a bottom wall 126. From the upper wall 121, the side walls 122, 123, 124, and 125 and the bottom wall 126, a substantially rectangular parallelepiped housing that accommodates the optical characteristic measurement unit is formed.
　上壁１２１は、光学特性測定部のモニター１３４を保持しており、このモニター１３４に、例えば光学特性測定部で測定した測定値が表示されるようになっている。 The upper wall 121 holds a monitor 134 of the optical characteristic measurement unit, and the measurement value measured by the optical characteristic measurement unit, for example, is displayed on the monitor 134.
　底壁１２６には、測定開口１３０が形成されている。この実施形態では、測定開口１３０は、底壁１２６に設けられた測定開口形成部材（ターゲットマスク）１２７に形成されている。この測定開口形成部材１２７は、円板状のもので、中心部に円形状の測定開口１３０が形成されている。 A measurement opening 130 is formed in the bottom wall 126. In this embodiment, the measurement opening 130 is formed in a measurement opening forming member (target mask) 127 provided in the bottom wall 126. The measurement aperture forming member 127 is a disc-shaped member, and a circular measurement aperture 130 is formed at the center.
　この測定開口形成部材１２７は、底壁１２６から下方となる外方に突出するように底壁１２６に保持されている。 The measurement opening forming member 127 is held by the bottom wall 126 so as to protrude outward from the bottom wall 126.
　光学特性測定部は、この実施形態では、互いに異なるジオメトリの複数の光学系を用いることによって測定開口１３０に臨む測定対象における互いに異なる複数の光学特性を測定するように構成されている。 In this embodiment, the optical property measurement unit is configured to measure a plurality of different optical properties in a measurement object facing the measurement aperture 130 by using a plurality of optical systems having different geometries.
　この実施形態では、前記光学特性測定部は、本体ハウジング１０２の底壁１２６に形成された上述の測定開口１３０と、測定開口１３０に配置された測定対象の光沢を測定する光沢測定部（図示せず）、測定開口１３０に配置された測定対象の色を測定する測色部（図示せず）、前記光沢測定部および前記測色部で得た測定データに基づいて光沢値、色彩値を求める制御部（図示せず）等を備えている。 In this embodiment, the optical characteristic measurement unit includes the above-described measurement opening 130 formed in the bottom wall 126 of the main body housing 102 and a gloss measurement unit (not shown) that measures the gloss of the measurement object disposed in the measurement opening 130. 1), a colorimetry unit (not shown) for measuring the color of the measurement object arranged in the measurement opening 130, and a gloss value and a color value are obtained based on the measurement data obtained by the gloss measurement unit and the colorimetry unit. A control unit (not shown) is provided.
　前記光沢測定部は、例えば図７に示すように、光沢測定用の光源１３１、光沢測定用の受光部１３２等を備え、これらは、光沢用のジオメトリとなるように構成されている。このように構成された光沢測定部は、光沢測定用光源１３１から測定開口１３０に臨む測定対象の測定部位に光を当て、さらに、測定対象で反射された光を光沢測定用の受光部１３２で受光して光沢データを検出する。そして、この検出した光沢に関する光沢データに基づいて制御部で公知の方法で光沢値が求められ、この求められた光沢値がモニター１３４で表示される。 For example, as shown in FIG. 7, the gloss measuring unit includes a gloss measuring light source 131, a gloss measuring light receiving unit 132, and the like, and these are configured to have a gloss geometry. The gloss measuring unit configured as described above irradiates light from the gloss measurement light source 131 to the measurement target portion to be measured facing the measurement opening 130, and further reflects the light reflected by the measurement target by the gloss measurement light receiving unit 132. Receives light and detects gloss data. Then, based on the gloss data relating to the detected gloss, the control unit obtains the gloss value by a known method, and the obtained gloss value is displayed on the monitor 134.
　前記測色部は、前記光沢測定部と同様に、測色測定用の光源、測色測定用の受光部等を備えており、このように構成された測色部は、測色測定用の光源から測定開口１３０に臨む測定対象の測定部位に光を当て、さらに、測定対象で反射された光を測色測定用の受光部で受光して測色データを検出し、検出した測色データに基づいて上記制御部で公知の方法で色彩値が求められ、求められた色彩値がモニター１３４で表示される。 The colorimetric unit includes a light source for colorimetry measurement, a light-receiving unit for colorimetry measurement, and the like, similar to the gloss measurement unit, and the colorimetry unit configured in this way is used for colorimetry measurement. Light is applied to the measurement site of the measurement object facing the measurement aperture 130 from the light source, and the light reflected by the measurement object is received by the light-receiving unit for color measurement measurement to detect color measurement data, and the detected color measurement data Based on the above, the control unit obtains the color value by a known method, and the obtained color value is displayed on the monitor 134.
　次に、測定装置置台２について説明する。測定装置置台２は、この実施形態では、図１および図４に示すように、略直方体形状の置台ハウジング２１と、置台ハウジング２１の長手方向に沿って配設された光沢（光学特性）校正用の第１校正部３ａ、色彩（光学特性）校正用の第２校正部３ｂ、および、ゼロ校正部４とを備える。 Next, the measuring device mounting base 2 will be described. In this embodiment, as shown in FIG. 1 and FIG. 4, the measuring device mounting base 2 is a substantially rectangular parallelepiped mounting base 21, and gloss (optical characteristic) calibration provided along the longitudinal direction of the mounting housing 21. The first calibration unit 3a, the second calibration unit 3b for color (optical characteristics) calibration, and the zero calibration unit 4 are provided.
　第１校正部３ａは、図５に示すように、置台ハウジング２１の上壁２１１に形成された測定開口形成部材嵌挿部３１と、光沢の校正に用いられる校正基準部材３２と、校正基準部材３２を押圧する押圧機構３３とを備えている。 As shown in FIG. 5, the first calibration unit 3 a includes a measurement opening forming member insertion portion 31 formed on the upper wall 211 of the mounting housing 21, a calibration reference member 32 used for gloss calibration, and a calibration reference member. And a pressing mechanism 33 for pressing 32.
　測定開口形成部材嵌挿部３１は、置台ハウジング２１の上壁２１１に、測定開口形成部材１２７を嵌挿できるように、測定開口形成部材１２７と略同径で、所定の深さで形成される。 The measurement opening forming member insertion portion 31 is formed with a predetermined depth and substantially the same diameter as the measurement opening forming member 127 so that the measurement opening forming member 127 can be inserted into the upper wall 211 of the mounting housing 21. .
　校正基準部材３２は、光沢校正用の円板状の校正基準板３２１ａと、校正基準板３２１ａを保持する保持部材３２２とを備えている。 The calibration reference member 32 includes a disk-shaped calibration reference plate 321a for gloss calibration and a holding member 322 for holding the calibration reference plate 321a.
　校正基準板３２１ａは、測定開口形成部材１２７の測定開口１３０よりも径が大きく、測定開口形成部材１２７の測定開口１３０の周縁全体に当接可能な大きさの部材である。 The calibration reference plate 321a is a member having a diameter larger than that of the measurement opening 130 of the measurement opening forming member 127 and a size capable of contacting the entire periphery of the measurement opening 130 of the measurement opening forming member 127.
　保持部材３２２は、その上部側に校正基準板３２１ａを保持する基準板保持部３２３を備える。この基準板保持部３２３は、校正基準板３２１ａを下方側から受ける受け板３２４と、受け板３２４を囲むように受け板３２４の外周縁から上方に延ばされた周壁３２５とを備えており、基準板保持部３２３に保持された校正基準板３２１ａの上面が露出するように（外部に臨むように）なっている。 The holding member 322 includes a reference plate holding portion 323 that holds the calibration reference plate 321a on the upper side thereof. The reference plate holding portion 323 includes a receiving plate 324 that receives the calibration reference plate 321a from the lower side, and a peripheral wall 325 that extends upward from the outer peripheral edge of the receiving plate 324 so as to surround the receiving plate 324. The upper surface of the calibration reference plate 321a held by the reference plate holding portion 323 is exposed (so as to face the outside).
　この周壁３２５の高さが、校正基準板３２１ａの厚さよりも低く形成されており、基準板保持部３２３に保持された校正基準板３２１ａが、基準板保持部３２３の上方に突出するようになっている。 The height of the peripheral wall 325 is formed lower than the thickness of the calibration reference plate 321a, and the calibration reference plate 321a held by the reference plate holding part 323 protrudes above the reference plate holding part 323. ing.
　保持部材３２２の受け板３２４における下面の略中心部（略中央位置）に、後述の押圧機構３３の当接部３３４と係合する略半球状の凹部（係合部）３２６が形成されている。 A substantially hemispherical recess (engagement portion) 326 that engages with a contact portion 334 of a pressing mechanism 33 described later is formed at a substantially central portion (substantially central position) of the lower surface of the receiving plate 324 of the holding member 322. .
　このように構成された校正基準部材３２は、校正基準板３２１ａを保持部材３２２で保持した状態で、置台ハウジング２１内において、測定開口形成部材嵌挿部３１の下部側に、下方側から突出するとともに、測定開口形成部材嵌挿部３１内を上下移動可能に配置されている。したがって、測定開口形成部材１２７が測定開口形成部材嵌挿部３１に嵌挿されると、測定開口形成部材１２７と校正基準板３２１ａの上面とが当接するようになっている。 The calibration reference member 32 configured in this manner protrudes from the lower side to the lower side of the measurement opening forming member insertion portion 31 in the mounting housing 21 with the calibration reference plate 321a held by the holding member 322. In addition, the inside of the measurement opening forming member insertion portion 31 is arranged so as to be movable up and down. Therefore, when the measurement opening forming member 127 is inserted into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 and the upper surface of the calibration reference plate 321a come into contact with each other.
　校正基準部材３２が置台ハウジング２１内に配置された状態で、保持部材３２２の受け板３２４の凹部３２６は、測定開口形成部材嵌挿部３１の略中心に配置され、測定開口形成部材嵌挿部３１に嵌挿された測定開口形成部材１２７における測定開口１３０の略中心に位置するようになっている。 In a state where the calibration reference member 32 is disposed in the mounting housing 21, the recess 326 of the receiving plate 324 of the holding member 322 is disposed substantially at the center of the measurement opening forming member insertion portion 31, and the measurement opening forming member insertion portion The measurement opening forming member 127 inserted and inserted into 31 is positioned substantially at the center of the measurement opening 130.
　押圧機構３３は、押圧板３３１と、押圧板３３１を付勢するコイルばね（付勢部材）３３２とを備える。 The pressing mechanism 33 includes a pressing plate 331 and a coil spring (biasing member) 332 that biases the pressing plate 331.
　押圧板３３１は、円板状の本体部３３３と、校正基準部材３２の校正基準板３２１ａに当接する当接部（被係合部）３３４とを備える。 The pressing plate 331 includes a disk-shaped main body 333 and a contact portion (engaged portion) 334 that contacts the calibration reference plate 321a of the calibration reference member 32.
　当接部３３４は、この実施形態では、本体部３３３の中心部に、本体部３３３と一体的に、本体部３３３から上方に突設された突出部から構成されている。この実施形態の当接部３３４は、円柱部の先端に、保持部材３２２の凹部３２６に嵌合して係合可能な半球面（曲面）に形成されている。 In this embodiment, the abutting portion 334 includes a projecting portion that protrudes upward from the main body portion 333 integrally with the main body portion 333 at the central portion of the main body portion 333. The contact part 334 of this embodiment is formed at the tip of the cylindrical part in a hemispherical surface (curved surface) that can be engaged with and engaged with the recess 326 of the holding member 322.
　押圧板３３１は、当接部３３４が保持部材３２２の凹部３２６に嵌合した状態で、保持部材３２２の下方側に配設されている。 The pressing plate 331 is disposed on the lower side of the holding member 322 in a state where the contact portion 334 is fitted in the concave portion 326 of the holding member 322.
　コイルばね３３２は、押圧板３３１の下方側に配設され、コイルばね３３２の上端が押圧板３３１の下面に係止され、コイルばね３３２の下端が置台ハウジング２１に係止されることにより、コイルばね３３２は、押圧板３３１を上方側に付勢している。これにより、押圧板３３１の当接部３３４を介して保持部材３２２の略中心部が、上方に付勢されている。 The coil spring 332 is disposed on the lower side of the pressing plate 331, and the upper end of the coil spring 332 is locked to the lower surface of the pressing plate 331, and the lower end of the coil spring 332 is locked to the mounting housing 21. The spring 332 biases the pressing plate 331 upward. As a result, the substantially central portion of the holding member 322 is biased upward via the contact portion 334 of the pressing plate 331.
　上述のように測定開口形成部材１２７が測定開口形成部材嵌挿部３１に嵌挿されると、上述のように測定開口形成部材１２７と校正基準板３２１ａの上面とが当接するが、この付勢によって、その当接した校正基準板３２１ａの上面が、測定開口形成部材１２７に押し付けられる。 As described above, when the measurement opening forming member 127 is inserted into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 and the upper surface of the calibration reference plate 321a come into contact with each other. The upper surface of the abutting calibration reference plate 321a is pressed against the measurement aperture forming member 127.
　第２校正部３ｂは、色彩校正用の校正基準板３２１ｂが用いられている点で、光沢校正用の校正基準板３２１ａが用いられている第１校正部３ａと異なる。第２校正部３ｂにおけるそれ以外の構成は、第１校正部３ａと同構成を採っている。なお、色彩校正用の校正基準板３２１ｂは、光沢校正用の校正基準板３２１ａと同形状である。 The second calibration unit 3b is different from the first calibration unit 3a in which the calibration reference plate 321a for gloss calibration is used in that a calibration reference plate 321b for color calibration is used. The other configuration of the second calibration unit 3b is the same as that of the first calibration unit 3a. Note that the calibration reference plate 321b for color calibration has the same shape as the calibration reference plate 321a for gloss calibration.
　ゼロ校正部４は、図４に示すように、置台ハウジング２１の上壁２１１に形成されたゼロ校正用の測定開口形成部材嵌挿部４１と、そのゼロ校正用の測定開口形成部材嵌挿部４１と置台ハウジング２１の内部とを連通する連通孔４２とを備えており、この第２測定開口形成部材嵌挿部４１に測定開口形成部材１２７が嵌挿された状態で、測定装置本体１００が所定の操作をされることで光学特性測定部をゼロ校正できるようになっている。 As shown in FIG. 4, the zero calibration unit 4 includes a zero calibration measurement opening forming member insertion portion 41 formed on the upper wall 211 of the mounting housing 21 and a zero calibration measurement opening formation member insertion portion. 41 and a communication hole 42 communicating with the inside of the mounting housing 21, and the measurement apparatus main body 100 is in a state in which the measurement opening forming member 127 is inserted into the second measurement opening forming member insertion portion 41. The optical property measuring unit can be zero-calibrated by performing a predetermined operation.
　なお、光沢校正および色彩校正を実施しない場合、図４に示すように、第１校正部３ａおよび第２校正部３ｂそれぞれの校正基準板３２１ａ、３２１ｂは、保護カバー３２８が被せられ、これによって、校正基準板３２１ａ、３２１ｂに埃等の付着の防止や、校正基準板３２１ａ、３２１ｂに他のものが当たることによる損傷の防止等が可能となっている。 When gloss calibration and color calibration are not performed, the calibration reference plates 321a and 321b of the first calibration unit 3a and the second calibration unit 3b are covered with a protective cover 328 as shown in FIG. It is possible to prevent dust and the like from adhering to the calibration reference plates 321a and 321b, and to prevent damage caused by other objects hitting the calibration reference plates 321a and 321b.
　次に、この実施形態の光学特性測定装置１の校正の動作について説明する。図６は、前記測定装置置台に設けられた第１校正部に測定装置本体に設けられた測定開口形成部材を嵌挿した状態の要部の拡大断面図である。図７は、図６の状態で、第１校正部に設けられた校正基準板に光を当てた際の説明図である。図８は、比較例における校正部の校正基準板に光を当てた際の説明図である。図９は、実施形態の測定装置置台と比較例の測定装置置台とのそれぞれの校正基準板の光学特性値（光沢値）を測定したデータをグラフに表した図である。 Next, the calibration operation of the optical property measuring apparatus 1 of this embodiment will be described. FIG. 6 is an enlarged cross-sectional view of a main part in a state in which a measurement opening forming member provided in the measurement apparatus main body is fitted into a first calibration part provided in the measurement apparatus mounting base. FIG. 7 is an explanatory diagram when light is applied to the calibration reference plate provided in the first calibration unit in the state of FIG. FIG. 8 is an explanatory diagram when light is applied to the calibration reference plate of the calibration unit in the comparative example. FIG. 9 is a graph showing data obtained by measuring the optical characteristic values (gloss values) of the calibration reference plates of the measurement device table of the embodiment and the measurement device table of the comparative example.
　光沢測定する際の校正を行う場合、ユーザは、第１校正部３ａの保護カバー３２８を外し、図６に示すように測定装置本体１００の測定開口形成部材１２７を測定装置置台２の測定開口形成部材嵌挿部３１に嵌挿する。その際、測定開口形成部材嵌挿部３１の周壁の内周が、測定開口形成部材１２７をガイドし、測定開口形成部材１２７が、円滑に測定開口形成部材嵌挿部３１内に入り込む。 When performing calibration for gloss measurement, the user removes the protective cover 328 of the first calibration unit 3a, and forms the measurement opening forming member 127 of the measurement apparatus main body 100 as shown in FIG. It is inserted into the member insertion part 31. At that time, the inner periphery of the peripheral wall of the measurement opening forming member insertion portion 31 guides the measurement opening forming member 127, and the measurement opening forming member 127 smoothly enters the measurement opening forming member insertion portion 31.
　測定開口形成部材１２７が測定開口形成部材嵌挿部３１内に入り込んでいくと、測定開口形成部材１２７の下面（外面）が、光沢校正用の校正基準板３２１ａに当接し、更に、測定開口形成部材１２７が測定開口形成部材嵌挿部３１内に押し込まれると、測定開口形成部材１２７が、光沢校正用の校正基準板３２１ａをコイルばね３３２の付勢力に抗して押し下げた状態で嵌挿される。 When the measurement aperture forming member 127 enters the measurement aperture forming member insertion portion 31, the lower surface (outer surface) of the measurement aperture forming member 127 comes into contact with the calibration reference plate 321a for gloss calibration, and further, the measurement aperture is formed. When the member 127 is pushed into the measurement opening forming member insertion portion 31, the measurement opening forming member 127 is inserted in a state where the calibration reference plate 321 a for gloss calibration is pushed down against the biasing force of the coil spring 332. .
　したがって、測定開口形成部材１２７が測定開口形成部材嵌挿部３１内に嵌挿された状態で、測定開口形成部材１２７の下面（外面）に光沢校正用の校正基準板３２１ａがコイルばね３３２の付勢力によって押し付けられた状態になる。 Accordingly, the calibration reference plate 321a for gloss calibration is attached to the lower surface (outer surface) of the measurement aperture forming member 127 with the coil spring 332 attached in a state where the measurement aperture forming member 127 is inserted into the measurement aperture forming member insertion portion 31. It becomes a state pressed by the power.
　その際、コイルばね３３２が押圧板３３１の当接部３３４および保持部材３２２を介して校正基準板３２１ａを、測定開口形成部材１２７における測定開口１３０の中心部に当たる部分で押圧するため、コイルばね３３２の付勢力が、測定開口形成部材１２７における測定開口１３０の周部の全体に略均等にかかる。 At that time, the coil spring 332 presses the calibration reference plate 321a through the contact portion 334 of the pressing plate 331 and the holding member 322 at a portion corresponding to the center of the measurement opening 130 in the measurement opening forming member 127. The urging force is applied to the entire circumference of the measurement opening 130 in the measurement opening forming member 127 substantially evenly.
　例えば、比較例では、図８に示すように、バネで校正基準板３２１ａの端を押圧する場合、図８に示すように、光沢校正用の校正基準板３２１ａが測定開口形成部材１２７に対して所定位置から傾いて測定開口１３０の周部の一部と光沢校正用の校正基準板３２１ａとの間に隙間ｔが、生じ易くなる。したがって、この場合では、光沢校正用の校正基準板３２１ａの光沢測定値にバラツキが生じる虞れがあり、光沢校正用の校正基準板３２１ａの光沢値を正確に再現し難く、精度の高い校正を行い難い。 For example, in the comparative example, as shown in FIG. 8, when the end of the calibration reference plate 321a is pressed by a spring, the calibration reference plate 321a for gloss calibration is against the measurement aperture forming member 127 as shown in FIG. A gap t is likely to be generated between a part of the circumference of the measurement opening 130 and the calibration reference plate 321a for gloss calibration, which is inclined from a predetermined position. Therefore, in this case, there is a possibility that the gloss measurement value of the calibration reference plate 321a for gloss calibration may vary, and it is difficult to accurately reproduce the gloss value of the calibration reference plate 321a for gloss calibration, and highly accurate calibration is performed. It's hard to do.
　一方、本実施形態では、コイルばね３３２の付勢力が測定開口形成部材１２７における測定開口１３０の周部の全体に略均等にかかるため、図７に示すように、光沢校正用の校正基準板３２１ａが測定開口形成部材１２７に対して傾くことなく、より確実に、所定位置に配置され、測定開口１３０の周部の全体が光沢校正用の校正基準板３２１ａに当接し、測定開口１３０の周部と光沢校正用の校正基準板３２１ａとの間に隙間が生じ難くなる。したがって、光沢校正用の校正基準板３２１ａの光沢値にバラツキが生じる虞れが少なく、より確実に、光沢校正用の校正基準板３２１ａの光沢値を正確に再現でき、精度の高い校正ができる。 On the other hand, in the present embodiment, the biasing force of the coil spring 332 is applied substantially uniformly to the entire circumference of the measurement opening 130 in the measurement opening forming member 127. Therefore, as shown in FIG. 7, a calibration reference plate 321a for gloss calibration is provided. Is more reliably disposed at a predetermined position without inclining with respect to the measurement aperture forming member 127, and the entire circumference of the measurement aperture 130 abuts against the calibration reference plate 321a for gloss calibration, and the circumference of the measurement aperture 130 And a calibration reference plate 321a for gloss calibration are hardly generated. Therefore, there is little possibility that the gloss value of the calibration reference plate 321a for gloss calibration will vary, and the gloss value of the calibration reference plate 321a for gloss calibration can be more accurately reproduced and calibration can be performed with high accuracy.
　ここで、光沢校正用の校正基準板３２１ａの光沢値について、本実施形態の光学特性測定装置１と、図８に示す比較例とのそれぞれについて、比較試験が実施されたので、以下に説明する。 Here, a comparison test was carried out on the gloss value of the calibration reference plate 321a for gloss calibration for each of the optical characteristic measuring apparatus 1 of the present embodiment and the comparative example shown in FIG. 8, and will be described below. .
　比較試験は、本実施形態の光学特性測定装置１（本実施形態品）と、図８に示す比較例とのそれぞれについて、光沢校正用の校正基準板３２１ａの光沢値を、その都度脱着しながら２０回、測定し、それぞれの光沢値について、各１回目に測定した光沢値に対する差を求めることにより実施された。図９の横軸は、測定回数であり、その縦軸は、１回目の測定値との差である。 In the comparative test, the gloss value of the calibration reference plate 321a for gloss calibration is desorbed each time for each of the optical property measuring apparatus 1 of the present embodiment (the product of the present embodiment) and the comparative example shown in FIG. The measurement was performed 20 times, and for each gloss value, the difference from the gloss value measured at the first time was obtained. The horizontal axis in FIG. 9 is the number of measurements, and the vertical axis is the difference from the first measurement value.
　その結果は、図９に示すように、本実施形態品による光沢値の差は、比較例の場合よりもバラツキが小さくなることが確認できた。 As a result, as shown in FIG. 9, it was confirmed that the difference in gloss value between the products of this embodiment was smaller than that in the comparative example.
　色彩測定する際の校正を行う場合も、ユーザは、上述の光沢の校正の場合と同様に、第２校正部３ｂの保護カバー３２８を外し、測定装置本体１００の測定開口形成部材１２７を測定装置置台２の測定開口形成部材嵌挿部３１に嵌挿する。その場合においても、測定開口形成部材嵌挿部３１の周壁の内周が、測定開口形成部材１２７をガイドし、測定開口形成部材１２７が、円滑に測定開口形成部材嵌挿部３１内に入り込む。 Also in the case of performing calibration at the time of color measurement, the user removes the protective cover 328 of the second calibration unit 3b and removes the measurement opening forming member 127 of the measurement apparatus main body 100 from the measurement apparatus, as in the case of the above-described gloss calibration. The measurement opening forming member insertion portion 31 of the table 2 is inserted. Even in this case, the inner periphery of the peripheral wall of the measurement opening forming member insertion portion 31 guides the measurement opening forming member 127, and the measurement opening formation member 127 smoothly enters the measurement opening formation member insertion portion 31.
　測定開口形成部材１２７が測定開口形成部材嵌挿部３１内に入り込んで嵌挿された状態で、測定開口形成部材１２７に色彩校正用の校正基準板３２１ｂがコイルばね３３２の付勢力によって押し付けられた状態になる。 The calibration reference plate 321b for color calibration is pressed against the measurement aperture forming member 127 by the biasing force of the coil spring 332 in a state where the measurement aperture forming member 127 is inserted into the measurement aperture forming member insertion portion 31. It becomes a state.
　その場合においても、コイルばね３３２が押圧板３３１の当接部３３４および保持部材３２２を介して校正基準板３２１ｂを、測定開口形成部材１２７における測定開口１３０の中心部に当たる部分で押圧するため、コイルばね３３２の付勢力が、測定開口形成部材１２７における測定開口１３０の周部の全体に略均等にかかる。これにより、色彩校正用の校正基準板３２１ｂが、測定開口形成部材１２７に対して傾くことなく、より確実に、所定位置に配置され、測定開口１３０の周部の全体が、色彩校正用の校正基準板３２１ｂに当接し、測定開口１３０の周部と色彩校正用の校正基準板３２１ｂとの間に隙間が、生じ難くなる。したがって、色彩校正用の校正基準板３２１ｂの色彩値にバラツキが生じる虞れが少なく、色彩校正用の校正基準板３２１ｂの色彩校正値を正確に再現でき、精度の高い校正ができる。 Even in such a case, the coil spring 332 presses the calibration reference plate 321b through the contact portion 334 of the pressing plate 331 and the holding member 322 at the portion corresponding to the center of the measurement opening 130 in the measurement opening forming member 127. The biasing force of the spring 332 is applied to the entire circumference of the measurement opening 130 in the measurement opening forming member 127 substantially evenly. Thereby, the calibration reference plate 321b for color calibration is more reliably arranged at a predetermined position without being inclined with respect to the measurement aperture forming member 127, and the entire peripheral portion of the measurement aperture 130 is calibrated for color calibration. A gap is less likely to occur between the peripheral portion of the measurement opening 130 and the calibration reference plate 321b for color calibration, in contact with the reference plate 321b. Therefore, there is little possibility of variations in the color values of the calibration reference plate 321b for color calibration, the color calibration values of the calibration reference plate 321b for color calibration can be accurately reproduced, and highly accurate calibration can be performed.
　図１０は、前記測定装置置台の他の実施形態の要部の説明図である。図１１は、前記測定装置に設けられた測定開口形成部材の他の実施形態の断面図である。 FIG. 10 is an explanatory diagram of a main part of another embodiment of the measuring device mounting base. FIG. 11 is a cross-sectional view of another embodiment of a measurement aperture forming member provided in the measurement apparatus.
　なお、上記実施形態では、保持部材３２２の受け板３２４に凹部３２６が設けられ、押圧板３３１に凹部３２６に嵌合する突出部からなる当接部３３４が設けられたが、この形態のものに限らず、例えば、図１０に示すように、保持部材３２２ａの受け板３２４ａに、受け板３２４ａから下方に突出する突出部３２６ａが設けられ、押圧板３３１ａにその突出部３２６ａが嵌合する凹部からなる当接部３３４ａが設けられても良く、適宜に変更できる。 In the above-described embodiment, the recess 326 is provided in the receiving plate 324 of the holding member 322, and the contact portion 334 including the protruding portion that fits into the recess 326 is provided in the pressing plate 331. For example, as shown in FIG. 10, the receiving plate 324 a of the holding member 322 a is provided with a protruding portion 326 a that protrudes downward from the receiving plate 324 a and the pressing plate 331 a is fitted with the protruding portion 326 a. An abutting portion 334a may be provided and can be changed as appropriate.
　また、上記実施形態では、コイルばね３３２は、上端の径が下端の径よりも小さいものであったが、コイルばね３３２は、特に限定されず、例えば図１０に示すように、例えば上端の径と下端の径とが略同じコイルばね３３２ａであっても良い。 Moreover, in the said embodiment, although the coil spring 332 was a thing with the diameter of an upper end smaller than the diameter of a lower end, the coil spring 332 is not specifically limited, For example, as shown in FIG. The coil spring 332a may have substantially the same diameter at the lower end.
　また、測定開口形成部材１２７における、校正に際して校正基準板３２１ａ、３２１ｂと対向する対向面となる外面（下面）１２８は、平面でも良いが、図１１に示すように、前記外面１２８は、測定開口１３０の少なくとも周辺領域において、測定開口１３０の周縁１２８ａに向かって（径方向内側に行くに従い）漸次外方（測定開口１３０の開口面における法線方向に沿った内側から外側に向かう方向）に突出し、かつ、前記測定開口１３０の周縁１２８ａが最も外方に突出する膨出形状またはテーパ形状に形成されても良い。このように構成することにより、測定開口形成部材１２７における測定開口１３０の周縁１２８ａ全体を、より確実に校正基準板３２１ａ、３２１ｂに当接させ易くできる。なお、測定開口形成部材１２７の外周端から測定開口１３０の周縁１２８ａまでの突出量は、例えば数μｍ程度でも良く、図１１では、測定開口形成部材１２７の外周端から測定開口１３０の周縁１２８ａまでの突出量が誇張して図示されている。 In addition, the outer surface (lower surface) 128 which is a facing surface facing the calibration reference plates 321a and 321b in the calibration in the measurement aperture forming member 127 may be a flat surface. However, as shown in FIG. In at least the peripheral region of 130, it gradually protrudes outward (in the direction from the inside to the outside along the normal direction of the opening surface of the measurement opening 130) toward the peripheral edge 128 a of the measurement opening 130 (as it goes inward in the radial direction). In addition, the peripheral edge 128a of the measurement opening 130 may be formed in a bulging shape or a tapered shape that protrudes outward most. By configuring in this way, the entire periphery 128a of the measurement opening 130 in the measurement opening forming member 127 can be more reliably brought into contact with the calibration reference plates 321a and 321b. The amount of protrusion from the outer peripheral end of the measurement opening forming member 127 to the peripheral edge 128a of the measurement opening 130 may be, for example, about several μm. In FIG. 11, from the outer peripheral end of the measurement opening forming member 127 to the peripheral edge 128a of the measurement opening 130. The amount of protrusion is exaggerated.
　また、上記実施形態では、測定装置本体１００は、光沢および色彩を測定できるものとされているが、例えば光沢と色彩とのいずれか一方を測定できるものであればよい。また、測定装置置台２も、光沢校正用の第１校正部３ａと色彩校正用の第２校正部３ｂとゼロ校正部４とを備えているが、光沢校正用の第１校正部３ａと色彩校正用の第２校正部３ｂとの少なくともいずれか一方を備えたものであれば良く、適宜に変更できる。 In the above embodiment, the measuring apparatus main body 100 is capable of measuring gloss and color, but may be any instrument that can measure either gloss or color, for example. Further, the measuring device table 2 also includes a first calibration unit 3a for gloss calibration, a second calibration unit 3b for color calibration, and a zero calibration unit 4, but the first calibration unit 3a for gloss calibration and the color are also provided. Any device provided with at least one of the second calibration unit 3b for calibration may be used and can be appropriately changed.
　また、上記実施形態では、コイルばね３３２が用いられ、コイルばね３３２により、押圧板３３１の当接部３３４を保持部材３２２の略中心部を押圧することにより、校正基準部材３２は、測定開口形成部材１２７における測定開口１３０の略中央部に当たる部分で押圧されているが、この形態のものに限らず、例えば板バネが用いられ、前記板バネで、校正基準部材３２は、測定開口形成部材１２７における測定開口１３０の内側（内周側）に当たる部分で押圧されてよく、適宜に変更できる。 In the above embodiment, the coil spring 332 is used, and the calibration reference member 32 forms the measurement opening by pressing the abutting portion 334 of the pressing plate 331 against the substantially central portion of the holding member 322 by the coil spring 332. The member 127 is pressed at a portion corresponding to the substantially central portion of the measurement opening 130. However, the present invention is not limited to this configuration. For example, a plate spring is used, and the calibration reference member 32 is a measurement opening forming member 127 using the plate spring. May be pressed at a portion corresponding to the inner side (inner peripheral side) of the measurement opening 130 in FIG.
　また、上記実施形態では、押圧機構３３は、押圧板３３１とコイルばね３３２とを備えているが、例えば押圧機構３３は、コイルばね３３２のみから構成され、押圧板３３１を有さない形態のものでも良い。押圧機構３３がコイルばね３３２のみから構成され、コイルばね３３２の上端が校正基準部材３２に当接される場合において、コイルばね３３２の上端は、測定開口１３０の径よりも小さく、校正基準部材３２に対し、測定開口形成部材１２７における測定開口１３０の内側（内周側）に当たる部分に当接されればよい。 Moreover, in the said embodiment, although the press mechanism 33 is provided with the press plate 331 and the coil spring 332, the press mechanism 33 is comprised only from the coil spring 332, for example, the thing which does not have the press plate 331. But it ’s okay. When the pressing mechanism 33 is composed only of the coil spring 332 and the upper end of the coil spring 332 is brought into contact with the calibration reference member 32, the upper end of the coil spring 332 is smaller than the diameter of the measurement opening 130, and the calibration reference member 32. On the other hand, what is necessary is just to contact | abut the part which hits the inner side (inner peripheral side) of the measurement opening 130 in the measurement opening formation member 127. FIG.
　本明細書は、上記のように様々な態様の技術を開示しているが、そのうち主な技術を以下に纏める。 This specification discloses various modes of technology as described above, and the main technologies are summarized below.
　一態様にかかる光学特性測定装置は、測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における所定の光学特性を測定する光学特性測定部と、前記所定の光学特性の校正に用いられる校正基準部材と、前記校正基準部材を前記測定開口に臨ませた場合に、前記校正基準部材を、前記光学特性測定部における前記測定開口の内側の領域において接触し、押圧する押圧機構とを備える。 An optical property measurement apparatus according to an aspect includes an optical property measurement unit that has a measurement aperture and measures a predetermined optical property in a measurement object facing the measurement aperture by using an optical system having a predetermined geometry; When the calibration reference member used for calibration of optical characteristics and the calibration reference member are exposed to the measurement aperture, the calibration reference member is brought into contact with a region inside the measurement aperture in the optical property measurement unit, A pressing mechanism for pressing.
　このような光学特性測定装置は、校正基準部材を測定開口に臨ませた場合に、押圧機構によって校正基準部材を光学特性測定部における測定開口の内側に当たる部分で押圧するため、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができる。これにより、より確実に、校正基準部材が光学特性測定部に対して所定の位置に配置され、校正基準板の光学特性値にバラツキが生じ難く、再現性を担保でき、より確実に、正確な光学特性基準値が得られる。したがって、上記光学特性測定装置は、より確実に、精度の高い校正ができ、測定対象の光学特性を高精度に得られる。 In such an optical characteristic measuring apparatus, when the calibration reference member is faced to the measurement opening, the calibration reference member is pressed by the pressing mechanism at a portion of the optical characteristic measurement unit that is inside the measurement opening. It can be pressed against the entire circumference of the measurement opening in the characteristic measurement unit. As a result, the calibration reference member is more reliably arranged at a predetermined position with respect to the optical characteristic measurement unit, the optical characteristic value of the calibration reference plate is less likely to vary, and reproducibility can be ensured. An optical characteristic reference value is obtained. Therefore, the optical property measuring apparatus can perform calibration with higher accuracy and more accurately, and can obtain the optical property of the measurement object with high accuracy.
　他の一態様では、上述の光学特性測定装置において、前記押圧機構は、押圧板と、前記押圧板が前記校正基準部材を前記部分で押圧するように、前記押圧板を付勢する付勢部材とを備える。 In another aspect, in the above-described optical characteristic measurement device, the pressing mechanism includes a pressing plate and a biasing member that biases the pressing plate so that the pressing plate presses the calibration reference member at the portion. With.
　このような光学特性測定装置は、押圧板を介して付勢部材によって校正基準部材を押圧するため、校正基準部材を光学特性測定部における測定開口の全周に確実に押し当てることができる。 Since such an optical characteristic measuring apparatus presses the calibration reference member by the biasing member via the pressing plate, the calibration reference member can be surely pressed against the entire circumference of the measurement opening in the optical characteristic measuring unit.
　他の一態様では、上述の光学特性測定装置において、前記付勢部材は、コイルばねであり、前記押圧板は、前記コイルばねで付勢されるように前記コイルばねに係合する板状の本体部と、前記本体部に設けられた、前記校正基準部材を前記部分で押圧するように前記校正基準部材に当接する当接部とを備える。 In another aspect, in the above-described optical property measuring apparatus, the biasing member is a coil spring, and the pressing plate is a plate-like shape that engages with the coil spring so as to be biased by the coil spring. A main body and a contact portion provided on the main body so as to contact the calibration reference member so as to press the calibration reference member at the portion.
　このような光学特性測定装置は、校正基準部材を光学特性測定部における測定開口の全周に、より確実に押し当てることができる。 Such an optical characteristic measuring apparatus can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measuring unit.
　他の一態様では、上述の光学特性測定装置において、前記当接部は、曲面である。 In another aspect, in the above-described optical characteristic measurement device, the contact portion is a curved surface.
　このような光学特性測定装置は、校正基準部材を、当接面積を小さくして押圧でき、より一層確実に、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができる。 Such an optical characteristic measuring apparatus can press the calibration reference member with a small contact area, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
　他の一態様では、これら上述の光学特性測定装置において、前記当接部は、突出形状である。 In another aspect, in the above-described optical property measuring apparatus, the contact portion has a protruding shape.
　これによれば、前記当接部が突出形状である光学特性測定装置が提供される。 According to this, an optical characteristic measuring apparatus in which the abutting portion has a protruding shape is provided.
　他の一態様では、これら上述の光学特性測定装置において、前記前記校正基準部材における前記当接部で当接される部分が、突出形状である。 In another aspect, in the above-described optical characteristic measurement device, a portion of the calibration reference member that is in contact with the contact portion has a protruding shape.
　これによれば、前記前記校正基準部材における前記当接部で当接される部分が突出形状である光学特性測定装置が提供される。 According to this, there is provided an optical characteristic measuring apparatus in which a portion of the calibration reference member that is in contact with the contact portion has a protruding shape.
　他の一態様では、これら上述の光学特性測定装置において、前記測定開口が形成された測定開口形成部材を備え、前記測定開口形成部材は、前記測定開口の周辺領域において、前記測定開口の周縁に向かって漸次外方に突出し、かつ、前記測定開口の周縁が最も外方に突出するように形成されている。 In another aspect, in the above-described optical characteristic measurement apparatus, the measurement aperture forming member in which the measurement aperture is formed is provided, and the measurement aperture forming member is arranged at a peripheral edge of the measurement aperture in a peripheral region of the measurement aperture. The measurement opening gradually protrudes outward, and the peripheral edge of the measurement opening protrudes outward most.
　このような光学特性測定装置は、校正基準部材を測定開口の周縁全体に当て易くでき、校正基準部材を光学特性測定部における測定開口の全周に、より確実に押し当てることができる。 Such an optical characteristic measuring apparatus can easily apply the calibration reference member to the entire periphery of the measurement opening, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
　他の一態様では、これら上述の光学特性測定装置において、前記光学特性測定部を備える測定装置本体と、前記校正基準部材および押圧機構を備え、前記測定装置本体を着脱可能に載置する測定装置置台とを備える。 In another aspect, in the above-described optical property measurement apparatus, the measurement device body including the optical property measurement unit, the calibration reference member, and the pressing mechanism, and the measurement device body is detachably mounted. A pedestal.
　このような光学特性測定装置は、測定装置本体を測定装置置台に載置することで、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができる。したがって、上記光学特性測定装置は、容易にかつ確実に、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができる。 Such an optical characteristic measurement apparatus can press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit by placing the measurement apparatus main body on the measurement apparatus mounting base. Therefore, the optical property measuring apparatus can easily and reliably press the calibration reference member against the entire circumference of the measurement opening in the optical property measuring unit.
　他の一態様にかかる測定装置置台は、測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における所定の光学特性を測定する測定装置本体を着脱可能に載置する測定装置置台であって、前記所定の光学特性の校正に用いられる校正基準部材と、前記校正基準部材を前記測定開口に臨ませた場合に、前記校正基準部材を、前記校正基準部材における前記測定開口の内側の領域において接触し、押圧する押圧機構とを備える。 A measuring apparatus mounting base according to another aspect has a measurement aperture, and by using an optical system having a predetermined geometry, a measurement apparatus main body for measuring a predetermined optical characteristic in a measurement object facing the measurement aperture is detachably mounted. A measuring device mounting table, the calibration reference member used for calibration of the predetermined optical characteristic, and the calibration reference member in the calibration reference member when the calibration reference member faces the measurement opening. A pressing mechanism that contacts and presses in a region inside the measurement opening.
　このような測定装置置台は、測定装置本体を載置すれば、校正基準部材を測定開口に臨ませることも可能になり、押圧機構によって校正基準部材を光学特性測定部における測定開口の内側に当たる部分で押圧できる。これにより、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができ、より確実に、校正基準部材が光学特性測定部に対して所定の位置に配置され、校正基準板の光学特性値にバラツキが生じ難く、再現性が担保され、より確実に、正確な光学特性基準値が得られる。したがって、上記測定装置置台は、より確実に、精度の高い校正ができる。 If such a measuring device mounting base is placed on the measuring device main body, the calibration reference member can be made to face the measurement opening, and the portion where the calibration reference member hits the inside of the measurement opening in the optical property measuring unit by the pressing mechanism. Can be pressed. As a result, the calibration reference member can be pressed against the entire circumference of the measurement opening in the optical characteristic measurement unit, and the calibration reference member is more reliably disposed at a predetermined position with respect to the optical characteristic measurement unit. Variations in the optical characteristic values are unlikely to occur, reproducibility is ensured, and an accurate optical characteristic reference value can be obtained more reliably. Therefore, the measurement apparatus table can be calibrated with high accuracy and more reliably.
　他の一態様では、上述の測定装置置台において、前記押圧機構は、押圧板と、前記押圧板が前記校正基準部材を前記部分で押圧するように、前記押圧板を付勢する付勢部材とを備える。 In another aspect, in the above-described measurement device mounting base, the pressing mechanism includes a pressing plate, and a biasing member that biases the pressing plate so that the pressing plate presses the calibration reference member at the portion. Is provided.
　このような測定装置置台は、押圧板を介して付勢部材によって校正基準部材を押圧するため、校正基準部材を光学特性測定部における測定開口の全周に確実に押し当てることができる。 Since such a measuring device mounting base presses the calibration reference member with the urging member via the pressing plate, the calibration reference member can be reliably pressed against the entire circumference of the measurement opening in the optical characteristic measurement unit.
　他の一態様では、上述の測定装置置台において、前記付勢部材は、コイルばねであり、前記押圧板は、前記コイルばねで付勢されるように前記コイルばねに係合する板状の本体部と、前記本体部に設けられた、前記校正基準部材を前記部分で押圧するように前記校正基準部材に当接する当接部とを備える。 In another aspect, in the above-described measuring apparatus mounting base, the biasing member is a coil spring, and the pressing plate is engaged with the coil spring so as to be biased by the coil spring. And a contact portion that is provided on the main body portion and contacts the calibration reference member so as to press the calibration reference member at the portion.
　このような測定装置置台は、校正基準部材を光学特性測定部における測定開口の全周に、より一層確実に押し当てることができる。 Such a measuring apparatus mounting base can press the calibration reference member more securely against the entire circumference of the measurement opening in the optical characteristic measuring section.
　他の一態様では、上述の測定装置置台において、前記当接部は、曲面である。 In another aspect, in the above-described measuring device mounting base, the contact portion is a curved surface.
　このような測定装置置台は、校正基準部材を、当接面積を小さくして押圧でき、より一層確実に、校正基準部材を光学特性測定部における測定開口の全周に押し当てることができる。 Such a measuring apparatus mounting base can press the calibration reference member with a small contact area, and can more reliably press the calibration reference member to the entire circumference of the measurement opening in the optical characteristic measurement unit.
　他の一態様では、これら上述の測定装置置台において、前記校正基準部材は、前記所定の光学特性の校正に用いられる校正基準板と、前記校正基準板を保持する保持部材とを備え、前記保持部材は、前記当接部と係合する係合部を備える。好ましくは、上述の測定装置置台において、前記当接部は、突出部であり、前記係合部は、前記突出部が嵌合する凹部である。好ましくは、上述の測定装置置台において、前記係合部は、突出部であり、前記当接部は、前記突出部が嵌合する凹部である。 In another aspect, in the above-described measurement apparatus mounting base, the calibration reference member includes a calibration reference plate used for calibration of the predetermined optical characteristic, and a holding member that holds the calibration reference plate, and the holding The member includes an engagement portion that engages with the contact portion. Preferably, in the above-described measurement apparatus mounting base, the contact portion is a protrusion, and the engagement portion is a recess into which the protrusion is fitted. Preferably, in the above-described measurement apparatus mounting base, the engaging portion is a protruding portion, and the abutting portion is a concave portion into which the protruding portion is fitted.
　このような測定装置置台は、保持部材が当接部と係合する係合部を備えるため、当接部を容易かつ確実に所定位置に配置でき、校正基準板を確実に測定開口の内側に当たる部分で押圧できる。 Such a measuring device mounting base includes an engaging portion that engages the abutting portion with the holding member, so that the abutting portion can be easily and reliably disposed at a predetermined position, and the calibration reference plate is surely applied to the inside of the measurement opening. It can be pressed at the part.
　この出願は、２０１８年６月７日に出願された日本国特許出願特願２０１８－１０９６８２を基礎とするものであり、その内容は、本願に含まれるものである。 This application is based on Japanese Patent Application No. 2018-109682 filed on June 7, 2018, the contents of which are included in this application.
　本発明の実施形態が詳細に図示され、かつ、説明されたが、それは単なる図例及び実例であって限定ではない。本発明の範囲は、添付されたクレームの文言によって解釈されるべきである。 Although embodiments of the present invention have been illustrated and described in detail, it is merely exemplary and illustrative and not limiting. The scope of the invention should be construed by the language of the appended claims.
　本発明を表現するために、上述において図面を参照しながら実施形態を通して本発明を適切且つ十分に説明したが、当業者であれば上述の実施形態を変更および／または改良することは容易に為し得ることであると認識すべきである。したがって、当業者が実施する変更形態または改良形態が、請求の範囲に記載された請求項の権利範囲を離脱するレベルのものでない限り、当該変更形態または当該改良形態は、当該請求項の権利範囲に包括されると解釈される。 In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Accordingly, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. It is interpreted that it is included in
　本発明によれば、所定の光学特性を測定する光学特性測定装置および測定装置置台が提供できる。
  ADVANTAGE OF THE INVENTION According to this invention, the optical characteristic measuring apparatus and measuring device mounting stand which measure a predetermined optical characteristic can be provided.

Claims (13)

  1. 　測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における所定の光学特性を測定する光学特性測定部と、
    　前記所定の光学特性の校正に用いられる校正基準部材と、
    　前記校正基準部材を前記測定開口に臨ませた場合に、前記校正基準部材を、前記光学特性測定部における前記測定開口の内側の領域において接触し、押圧する押圧機構とを備える、
    　光学特性測定装置。     An optical property measuring unit that has a measurement aperture and measures a predetermined optical property in a measurement object facing the measurement aperture by using an optical system having a predetermined geometry;
    A calibration reference member used for calibration of the predetermined optical characteristics;
    A pressing mechanism that contacts and presses the calibration reference member in a region inside the measurement opening in the optical property measurement unit when the calibration reference member is exposed to the measurement opening;
    Optical property measuring device.
  2. 　前記押圧機構は、押圧板と、前記押圧板が前記校正基準部材を前記部分で押圧するように、前記押圧板を付勢する付勢部材とを備える、
    　請求項１に記載の光学特性測定装置。     The pressing mechanism includes a pressing plate and an urging member that urges the pressing plate so that the pressing plate presses the calibration reference member at the portion.
    The optical property measuring apparatus according to claim 1.
  3. 　前記付勢部材は、コイルばねであり、
    　前記押圧板は、前記コイルばねで付勢されるように前記コイルばねに係合する板状の本体部と、前記本体部に設けられた、前記校正基準部材を前記部分で押圧するように前記校正基準部材に当接する当接部とを備える、
    　請求項２に記載の光学特性測定装置。     The biasing member is a coil spring;
    The pressing plate includes a plate-like main body portion that engages with the coil spring so as to be urged by the coil spring, and the calibration reference member provided on the main body portion so as to press the portion with the portion. A contact portion that contacts the calibration reference member,
    The optical property measuring apparatus according to claim 2.
  4. 　前記当接部は、曲面である、
    　請求項３に記載の光学特性測定装置。     The contact portion is a curved surface.
    The optical property measuring apparatus according to claim 3.
  5. 　前記当接部は、突出形状である、
    　請求項３または請求項４に記載の光学特性測定装置。     The contact portion has a protruding shape,
    The optical property measuring apparatus according to claim 3 or 4.
  6. 　前記前記校正基準部材における前記当接部で当接される部分が、突出形状である、
    　請求項３または請求項４に記載の光学特性測定装置。     The portion of the calibration reference member that is in contact with the contact portion has a protruding shape.
    The optical property measuring apparatus according to claim 3 or 4.
  7. 　前記測定開口が形成された測定開口形成部材を備え、
    　前記測定開口形成部材は、前記測定開口の周辺領域において、前記測定開口の周縁に向かって漸次外方に突出し、かつ、前記測定開口の周縁が最も外方に突出するように形成されている、
    　請求項１ないし請求項６のいずれか１項に記載の光学特性測定装置。     A measurement aperture forming member in which the measurement aperture is formed;
    The measurement opening forming member is formed so as to gradually protrude outward toward the periphery of the measurement opening in the peripheral region of the measurement opening, and so that the periphery of the measurement opening protrudes outward most.
    The optical property measuring apparatus according to claim 1.
  8. 　前記光学特性測定部を備える測定装置本体と、
    　前記校正基準部材および押圧機構を備え、前記測定装置本体を着脱可能に載置する測定装置置台とを備える、
    　請求項１ないし請求項７のいずれか１項に記載の光学特性測定装置。     A measuring apparatus main body comprising the optical characteristic measuring unit;
    The calibration reference member and the pressing mechanism are provided, and the measurement device main body is detachably mounted, and includes a measurement device mounting base.
    The optical property measuring apparatus according to claim 1.
  9. 　測定開口を有し、所定のジオメトリの光学系を用いることによって前記測定開口に臨む測定対象における所定の光学特性を測定する測定装置本体を着脱可能に載置する測定装置置台であって、
    　前記所定の光学特性の校正に用いられる校正基準部材と、
    　前記校正基準部材を前記測定開口に臨ませた場合に、前記校正基準部材を、前記校正基準部材における前記測定開口の内側の領域において接触し、押圧する押圧機構とを備える、
    　測定装置置台。     A measuring device mounting base having a measuring aperture and detachably mounting a measuring device main body for measuring a predetermined optical characteristic in a measuring object facing the measuring aperture by using an optical system having a predetermined geometry,
    A calibration reference member used for calibration of the predetermined optical characteristics;
    A pressing mechanism that contacts and presses the calibration reference member in a region inside the measurement opening in the calibration reference member when the calibration reference member faces the measurement opening;
    Measuring device stand.
  10. 　前記押圧機構は、押圧板と、前記押圧板が前記校正基準部材を前記部分で押圧するように、前記押圧板を付勢する付勢部材とを備える、
    　請求項９に記載の測定装置置台。     The pressing mechanism includes a pressing plate and an urging member that urges the pressing plate so that the pressing plate presses the calibration reference member at the portion.
    The measuring device mounting stand according to claim 9.
  11. 　前記付勢部材は、コイルばねであり、
    　前記押圧板は、前記コイルばねで付勢されるように前記コイルばねに係合する板状の本体部と、前記本体部に設けられた、前記校正基準部材を前記部分で押圧するように前記校正基準部材に当接する当接部とを備える、
    　請求項１０に記載の測定装置置台。     The biasing member is a coil spring;
    The pressing plate includes a plate-like main body portion that engages with the coil spring so as to be urged by the coil spring, and the calibration reference member provided on the main body portion so as to press the portion with the portion. A contact portion that contacts the calibration reference member,
    The measuring device mounting stand according to claim 10.
  12. 　前記当接部は、曲面である、
    　請求項１１に記載の測定装置置台。     The contact portion is a curved surface.
    The measuring device mounting stand according to claim 11.
  13. 　前記校正基準部材は、前記所定の光学特性の校正に用いられる校正基準板と、前記校正基準板を保持する保持部材とを備え、
    　前記保持部材は、前記当接部と係合する係合部を備える、
    　請求項１１または請求項１２に記載の測定装置置台。
          The calibration reference member includes a calibration reference plate used for calibration of the predetermined optical characteristic, and a holding member that holds the calibration reference plate.
    The holding member includes an engagement portion that engages with the contact portion.
    The measuring device mounting stand according to claim 11 or 12.
PCT/JP2019/015356 2018-06-07 2019-04-08 Optical characteristic measurement device and measurement device mounting table WO2019235054A1 (en)

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