JPWO2017195573A1 - Optical property measuring device - Google Patents

Abstract

An optical property measurement apparatus according to the present invention includes an optical property measurement unit that has a measurement aperture and measures a plurality of different optical properties in a measurement object facing the measurement aperture by using a plurality of optical systems having different geometries. And a measurement object observation unit that directly observes the measurement object that faces the measurement opening, and an observation light source that illuminates the measurement object that faces the measurement opening.

Description

  The present invention relates to an optical characteristic measuring apparatus that measures predetermined optical characteristics such as color and gloss.

  2. Description of the Related Art Conventionally, as an optical property measuring apparatus that measures an optical property of a measurement object, for example, a colorimeter that measures the color of the measurement object, or a gloss meter that measures the gloss of the measurement object is widely known. For example, Patent Document 1 discloses an optical characteristic measurement device that receives reflected light reflected from a measurement object and measures surface characteristics of the measurement object.

  The optical measuring instrument disclosed in Patent Document 1 includes a light source, a mirror that further reflects the measurement light emitted from the light source and reflected by the measurement target, and the optical path of the measurement light reflected by the mirror. A condensing lens that collects the measurement light that is arranged along the mirror and reflected by the mirror, and a light receiving signal corresponding to the measurement light that has a light receiving surface on the rear focal plane of the condensing lens and is received by the light receiving surface And a finder disposed at a position sandwiching the mirror with respect to the measurement position, and the mirror is disposed so as to be movable so as to be adjustable in inclination, and from the finder to the mirror The measurement position of the measurement object can be confirmed via the.

  However, in Patent Document 1, when the mirror moves, the position and tilt of the mirror may shift, and it may be difficult to clearly and accurately see the measurement position of the measurement target, resulting in a decrease in measurement reproducibility. As a result, the performance may be reduced.

JP 2003-344164 A

  It is an object of the present invention to provide an optical property measuring apparatus that can directly confirm the measurement position of a measurement object without using a mirror.

  An optical property measurement apparatus according to the present invention includes an optical property measurement unit that has a measurement aperture and measures a plurality of different optical properties in a measurement object facing the measurement aperture by using a plurality of optical systems having different geometries. And a measurement object observation unit that directly observes the measurement object that faces the measurement opening, and an observation light source that illuminates the measurement object that faces the measurement opening. Therefore, the optical property measurement apparatus according to the present invention can directly confirm the measurement position of the measurement object without using a mirror.

  The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

It is the perspective view which looked at the optical characteristic measuring device in an embodiment from the right front side. It is the perspective view which looked at the optical characteristic measuring apparatus shown in FIG. 1 from the left front side. It is a side view of the optical characteristic measuring apparatus shown in FIG. It is a bottom view of the optical characteristic measuring apparatus shown in FIG. It is sectional drawing of the optical characteristic measurement part which the optical characteristic measuring apparatus shown in FIG. 1 has. It is a schematic diagram of a structure of the optical characteristic measurement part which the optical characteristic measuring apparatus shown in FIG. 1 has. It is explanatory drawing for demonstrating the positional relationship of the through-opening with respect to the measurement opening which the optical characteristic measuring apparatus shown in FIG. 1 has. It is a perspective view of the shutter mechanism which the optical characteristic measuring apparatus shown in FIG. 1 has. It is a perspective view of the modification of the said shutter mechanism. FIG. 10 is a perspective view of a state in which the shutter mechanism of the modification shown in FIG. 9 is attached to the housing. It is a schematic diagram of the structure which has arrange | positioned the camera which is a modification of the measuring object observation part which the said optical characteristic measuring apparatus has.

  Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. 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.

  FIG. 1 is a perspective view of an optical characteristic measuring apparatus according to an embodiment as viewed from the right front side. FIG. 2 is a perspective view of the optical characteristic measuring apparatus shown in FIG. 1 as viewed from the left front side. FIG. 3 is a side view of the optical property measuring apparatus shown in FIG. FIG. 4 is a bottom view of the optical characteristic measuring apparatus shown in FIG. In the figure, X1 is the forward direction, X2 is the backward direction, Y1 direction is the right direction, and Y2 direction is the right direction. FIG. 5 is a cross-sectional view of an optical property measuring unit included in the optical property measuring apparatus shown in FIG. FIG. 6 is a schematic diagram of a configuration of an optical property measuring unit included in the optical property measuring apparatus shown in FIG. FIG. 7 is an explanatory diagram for explaining the positional relationship of the through-opening with respect to the measurement opening included in the optical characteristic measuring apparatus shown in FIG. FIG. 8 is a perspective view of a shutter mechanism included in the optical characteristic measuring apparatus shown in FIG.

  The optical property measuring apparatus 1 in the present embodiment includes a housing 2, an optical property measuring unit 3 (shown in FIG. 5) accommodated in the housing 2, a through-opening (measurement target observation unit) 4a formed in the housing 2. 4b.

  The optical characteristic measurement unit 3 is configured to measure a plurality of different optical characteristics in the measurement object 100 facing the measurement openings 4a and 4b by using a plurality of optical systems having different geometries.

  In this embodiment, as shown in FIGS. 5 and 6, the optical property measurement unit 3 includes a measurement aperture 30, a gloss measurement unit 31 that measures the gloss of the measurement object 100 disposed in the measurement aperture 30, and a measurement aperture. The color measurement unit 32 that measures the color (object color, light source color) of the measurement object 100 arranged at 30, and the gloss value and the color value are obtained based on the measurement data obtained by the gloss measurement unit 31 and the color measurement unit 32. A control unit 33 and a monitor (display unit) 34 that displays gloss values, color values, and the like obtained by the control unit 33 are provided.

  The gloss measurement unit 31 includes, for example, a gloss measurement light source 311, and an irradiation diameter switching unit 312 that appropriately switches the irradiation diameter of the light of the gloss measurement light source 311 that hits the measurement target 100 according to the size of the measurement site of the measurement target 100. , A gloss measurement illumination lens 313, a gloss measurement light receiving lens 314, a gloss detection unit 315, and the like, which are configured to have a gloss geometry.

  The gloss measurement unit 31 configured in this manner applies light from the gloss measurement light source 311 to the measurement site of the measurement object 100 facing the measurement opening 30 via the irradiation diameter switching unit 312 and the gloss measurement illumination lens 313, Further, the light reflected by the measurement object 100 is received by the gloss detector 315 via the gloss measurement light receiving lens 314 to detect gloss data related to gloss. Based on the gloss data relating to the detected gloss, the control unit 33 obtains the gloss value by a known method, and the obtained gloss value is displayed on the monitor 34. The irradiation diameter switching unit 312 has, for example, a light shielding property in which a plurality of through holes having different diameters (for example, a first through hole having a first diameter and a second through hole having a second diameter smaller than the first diameter) are formed. The illumination light from the gloss measurement light source 311 passes through the first through-hole, and the irradiation diameter becomes the first diameter, and the illumination light from the gloss measurement light source 311 passes through the second through-hole. Thus, it is configured to be movable in a direction orthogonal to the optical path so that the irradiation diameter is the second diameter.

  The color measurement unit 32 includes a color measurement measurement light source 321, an irradiation light reflection mirror 322, a reflection light mirror 323, a measurement light receiving diameter switching lens 324, a spectroscopic unit 326, and the like. It is configured to be geometry.

  The colorimetric unit 32 configured in this manner applies light from the colorimetric measurement light source 321 to the measurement site of the measurement target 100 facing the measurement aperture 30 via the irradiation light reflection mirror 322, and further, the measurement target 100 The reflected light is received by the spectroscopic unit 326 via the reflected light mirror 323 and the measurement light-receiving diameter switching lens 324, and colorimetric data relating to colorimetry is detected. Then, based on the detected colorimetric data, the control unit 33 obtains a color value by a known method, and the obtained color value is displayed on the monitor 34.

  The gloss geometry in the gloss measurement unit 31 and the color measurement geometry in the color measurement unit 32 are different from each other. In one example, the gloss geometry is 60 °: 60 °, that is, the measurement object 100 is illuminated at 60 degrees with respect to the sample normal, and the reflected light is received in the specular reflection direction, while the color measurement geometry. Illuminates the measurement object 100 at 45 degrees with respect to the sample normal, and receives reflected light in the 0 degree direction. These may be other geometries.

  As shown in FIGS. 1 to 4, the housing 2 includes an upper wall 21, a pair of right side walls (first side walls) 22 and left side walls (second side walls) 23, a bottom wall 24, and a rear wall 25. And.

  The upper wall 21 holds the monitor 34 of the optical characteristic measuring unit 3 described above, and the measurement value measured by, for example, the optical characteristic measuring unit 3 is displayed on the monitor 34.

  The bottom wall 24 has a circular first contact portion 241 and a substantially rectangular second contact portion 242 that are in contact with the measurement target 100 when measuring the measurement target 100 on the front side and the rear side, respectively. And. The measurement opening 30 described above is formed in a circular shape at the center of the first contact portion 241.

  A first through opening 4 a is formed in the right wall 22. The first through opening 4a is for directly observing the measurement object 100 facing the measurement opening 30 and is formed so as to penetrate from the outer surface of the right side wall 22 to the inner surface. In this embodiment, a translucent member 221 such as a transparent resin or transparent glass that transmits visible light is fitted into the first through opening 4a.

  The right side wall 22 holds shutter mechanisms 51a to 54a that open and close the first through opening 4a. As shown in FIGS. 3 and 8, the shutter mechanism of this embodiment includes a first shutter member 51a that opens and closes the first through opening 4a, a first opening and closing operation member 52a that opens and closes the first shutter member 51a, A first connecting member 53a that connects the first shutter member 51a and the first opening / closing operation member 52a, and a first opening / closing sensor 54a are provided.

  The 1st shutter member 51a is comprised from the plate-shaped body of the magnitude | size which can block | close the whole 1st through-opening 4a.

  The first connecting member 53a has a substantially L shape (substantially rectangular shape) having a bent portion at an intermediate portion, one end is fixedly connected to the first shutter member 51a, and the other end is a first opening / closing operation. The member 52a is rotatably connected. As for this 1st connection member 53, the bending part is hold | maintained at the right side wall 22 so that rotation is possible.

  The first opening / closing operation member 52 a includes an operation main body 521 having two rotation restricting shafts 5211, an operation protrusion 522 for manually operating the operation main body 521, and a biasing member that urges the operation main body 521. The coil spring 523 is provided.

  The operation protrusion 522 is formed so as to protrude integrally from the operation main body 521, and is disposed outside the right side wall 22 so that it can be operated from the outside of the housing 2.

  The operation main body 521 is rotatably attached to the right side wall 22. The operation main body 521 is indicated by a one-dot chain line in FIG. 3 in which the first through opening 4a is opened from the closed position shown in FIG. 3 in which the first shutter member 51a blocks the entire first through opening 4a by the rotation restricting shaft 5211. The range up to the open position is rotated.

  The coil spring 523 biases the rotation operation main body 521 that is rotated from the closed position toward the open position toward the closed position.

  The first open / close sensor 54a is for detecting whether or not the shutter member 51 is blocking the first through opening 4a. In this embodiment, the first open / close sensor 54a protrudes from the sensor main body 541 and the sensor main body 541. And a detection piece 542.

  In the first opening / closing sensor 54a configured as described above, the detection piece 542 comes into contact with the rotation operation main body 521 at the closed position, and the rotation operation main body 521 rotates from the closed position toward the open position. Thus, the detection piece 542 is held on the right side wall 22 so as to be separated from the rotation operation main body 521. When the sensor body 541 is connected to the control unit 33 and detects by the detection piece 542 that the shutter member 51 is in the closed position blocking the first through opening 4a, for example, an ON signal is output to the control unit 33, and the shutter When the detection piece 542 detects that the member 51 is out of the closed position where the first through opening 4a is blocked, for example, an off signal is output to the control unit 33. As described above, the first open / close sensor 54 a detects whether or not the shutter member 51 is blocking the first through opening 4 a and outputs the detection result to the control unit 33. The control unit 33 displays the detection result of the first opening / closing sensor 54 a on the monitor 34. The control unit 33 may forcibly stop the measurement of the optical characteristics when the detection result of the first opening / closing sensor 54a is out of the closed position where the shutter member 51 closes the first through opening 4a.

  In this embodiment, the lower end of the right side wall 22 and the right side of the first contact part 241 (measurement opening 30) are provided with a recess 221 in which a part of the right side wall 22 is recessed inward. The position of the first contact portion 241 (measurement opening 30) can be seen from the concave portion 221 even from the upper right side of the right side wall 22, for example.

  The left side wall 23 has substantially the same configuration as the right side wall 22, and is arranged symmetrically with the right side wall 22. Specifically, the left side wall 23 is formed with a second through-opening 4b having the same configuration as the first through-hole 4a and fitted with a translucent member 221.

  The left side wall 23 holds second shutter mechanisms 51b to 54b that open and close the second through opening 4b. The second shutter mechanisms 51b to 54b have the same configuration as the first shutter mechanisms 51a to 54a, and the second shutter member 51b, the second opening / closing operation member 52b, the second connecting member 53b, and the second opening / closing sensor. 54b (see FIG. 8).

  At the lower end of the left side wall 23 and on the left side of the first contact portion 241 (measurement opening 30), a concave portion 221 in which a part of the left and right side walls 23 is recessed inward is provided. The position of the first contact portion 241 (measurement opening 30) can be seen even from the upper left side of the left side wall 22.

  The back wall 25 has an opening portion opened in the back portion of the box formed by connecting the upper wall 21, the bottom wall 24, the right side wall (first side wall) 22 and the left side wall (second side wall) 23. It is a member that closes.

  When measuring the gloss or color of a desired measurement region (measurement region, measurement position) of the measurement object 100 with the optical property measurement apparatus 1 configured as described above, the measurement opening 30 is provided in the desired measurement region of the measurement object 100. The first contact portion 241 and the second contact portion 242 are in contact with the measurement object 100 so as to match.

  At that time, the measurement opening 30 is formed on the bottom wall 24 of the optical property measuring apparatus 1 and thus cannot be seen from the outside. However, the rough position of the measurement opening 30 is found by using the concave portion 221 as a mark, and the measurement object is measured. Alignment can be made so that 100 desired measurement sites face the measurement opening 30.

  Then, the gloss measurement light source 311 is turned on, and one of the first operation protrusion 522a and the second operation protrusion 522b is selected and operated. The selection of the first operation protrusion 522a and the second operation protrusion 522b may be performed by selecting the one that is easy for the operator to operate. For example, when the operator is right-handed, the first right-hand side that is easy to operate is selected. The operation protrusion 522a may be selected and operated, and can be easily opened. Both the first and second operation protrusions 522a and 522b may be operated.

  Thereby, the 1st shutter member 51a or the 2nd shutter member 51b moves, and the 1st penetration opening 4a or the 2nd penetration opening 4b is open | released. Then, it is directly confirmed whether or not the light of the gloss measurement light source 311 hits the measurement site of the measurement object 100 facing the measurement opening 30 from the opened first through opening 4a or second through opening 4b. it can.

  At that time, when the measurement light from the colorimetric measurement light source 321 is incident on the measurement object 100, the color measurement unit 32, when the measurement object 100 is diffusely transmissive such as paper or plastic, A part of the light is diffused and emitted as internally reflected light. The radiation range extends around the illumination area, so that a so-called edge loss error occurs in which the amount of reflected light in the reflection area decreases. Therefore, in the color measurement unit 32, the irradiation diameter and the measurement diameter of the measurement site are different. Therefore, when the colorimetric measurement light source 321 is used as an observation light source, it is difficult to confirm the measurement site because the irradiation diameter and the measurement diameter of the measurement site are different.

  On the other hand, the gloss measurement unit 31 measures the specular reflection light reflected from the measurement target 100 by the light from the gloss measurement light source 311, and therefore the irradiation diameter hitting the measurement target 100 and the measurement diameter of the measurement site of the measurement target 100. Match. Therefore, as in the present embodiment, by using the colorimetric measurement light source 321 as an observation light source, the irradiated part that hits the measurement object 100 may be aligned with the measurement part of the measurement object 100, and the measurement object 100. The measurement position can be accurately aligned.

  Next, the hand is released from the first operation protrusion 522a or the second operation protrusion 522b being pressed. As a result, the operation main body 521 rotates in the direction opposite to the above by the urging force of the coil spring 523, and the first shutter member 51a or the second shutter member 51b is moved to move the first through opening 4a or the second through opening. 4b closes.

  In this state, the optical property measuring apparatus 1 can measure the gloss of the measurement object 100 by the gloss measuring unit 31. Alternatively, the optical property measuring apparatus 1 can measure the color of the measuring object 100 by the color measuring unit 32. In this state, there is little risk of external light entering the housing 2 from the first through-opening 4a or the second through-opening 4b, and the gloss measurement by the gloss measurement unit 31 or the color measurement by the color measurement unit 32 is performed. Is less likely to be affected by external light.

  As described above, the optical property measurement apparatus 1 in the embodiment can directly observe the measurement object 100 facing the measurement opening 30 by the through openings 4a and 4b which are measurement object observation units formed in the housing 2. At the time of opening, the measurement position of the measurement object 100 can always be confirmed accurately. Since the optical characteristic measuring apparatus 1 in the embodiment can be confirmed without using a lens like a conventional product, it can be easily manufactured and can be manufactured at low cost.

  In the optical characteristic measuring apparatus 1 according to the embodiment, since the measurement target observation unit is configured by the through openings 4a and 4b formed in the housing 2, the measurement target observation unit can be configured simply and manufactured at a lower cost. it can.

  The optical property measuring apparatus 1 according to the embodiment further includes shutter mechanisms 51a to 54a and 51b to 54b for opening and closing the through openings 4a and 4b in the measurement target observation unit. Therefore, when checking the measurement position of the measurement target 100, the through opening The measurement position of the measuring object 100 can be confirmed by opening 4a and 4b. On the other hand, when measuring the optical characteristics of the measuring object 100, by closing the through openings 4a and 4b, it is possible to prevent light from entering the housing 2 from the outside, and external light may affect the measurement of the optical characteristics. The optical characteristics can be measured more accurately.

  The shutter mechanisms 51a to 54a and 51b to 54b can be opened and closed by manually operating the opening and closing members 52a and 52b, and the shutter members 51a and 51b can be easily opened and closed. Can be a thing.

  For example, when the measurement target 100 is a printed matter or a small part, it is required to measure with a small measurement site. At that time, the color measurement unit 32 changes the light receiving area by changing the position of the measurement light receiving diameter switching lens 324 of the light receiving optical system without changing the irradiation diameter of the color measurement measuring light source 321 that hits the measurement target 100. Therefore, if the colorimetric measurement light source 321 is an observation light source, it is difficult to align the measurement position when measuring with a small diameter measurement site. On the other hand, the gloss measurement unit 31 includes an irradiation diameter switching unit 312 that switches the irradiation diameter of the gloss measurement light source corresponding to the measurement target, and the light receiving area is changed by changing the irradiation diameter. Accordingly, when the gloss measurement light source 311 is used as an observation light source as in this embodiment, for example, when measuring the measurement site with a small diameter, such as when the measurement target 100 is a printed matter or a small part, First, the measurement part is roughly aligned with the irradiation diameter in a state larger than the diameter of the irradiation diameter measurement part, and then the irradiation part is set to the same diameter as the measurement part by the irradiation diameter switching unit 312 and the measurement part is finely positioned. To be combined. Thereby, the irradiation site | part of the same diameter can be easily aligned with the measurement site | part of a small diameter.

  In the above embodiment, the first shutter member 51a and the second shutter member 51b are separately moved independently by the first opening / closing member 52a and the second opening / closing member 52b. Not limited, but can be changed as appropriate.

  FIG. 9 is a perspective view of a modified example of the shutter mechanism. FIG. 10 is a perspective view of a state in which the shutter mechanism of the modification shown in FIG. 9 is attached to the housing.

  For example, as shown in FIG. 9, the shutter mechanism is configured so that the first shutter member 51a and the second shutter member 51b are interlocked so that the through openings 4a and 4b can be simultaneously opened and closed by the operation of one opening and closing operation member 152. May be.

  More specifically, the shutter mechanism includes two first shutter members 51a and second shutter members 51b, and a first connecting member 53a connected to the first shutter member 51a and a second connecting member 53b connected to the second shutter member 51b. And one opening / closing operation member 152.

  The opening / closing operation member 152 includes an opening / closing operation member main body 1521 and an operation projection piece 1522 formed integrally with the opening / closing operation member main body 1521 so as to protrude upward from the upper surface of the opening / closing operation member main body 1521. .

  A first connecting member 53a is rotatably connected to one end (right end) of the opening / closing operation member main body 1521, and a second connecting member 53b is rotatably connected to the other end (left end) of the opening / closing operation member 152. Yes.

  As shown in FIG. 10, the opening / closing operation member main body 1521 is held on the upper wall 21 of the housing 2 so as to be movable in the front-rear direction (X1-X2 direction). In a state where the opening / closing operation member main body 1521 is held on the upper wall 21 of the housing 2, the operation protrusion 1522 is received by the operation member receiving hole 211 formed in the upper wall 21 of the housing 2 so as to be movable in the front-rear direction. Yes.

  With this configuration, when the opening / closing operation member 152 is moved in the front-rear direction, both the first connecting member 53a and the second connecting member 53b rotate in the same direction. The first shutter member 51a and the second shutter member 51b are interlocked to open and close the through openings 4a and 4b at the same time.

  Moreover, in the said embodiment, although the measurement object observation part was made into the through-opening formed in the housing 2, it is not restricted to the thing of this form, For example, a measurement object observation part may be comprised from the camera which images. Good.

  FIG. 11 is a schematic diagram of a configuration in which a camera that is a modification of the measurement target observation unit included in the optical characteristic measurement device is arranged. More specifically, the right side wall (first side wall) corresponding to the position of the through-opening 4a at a position where the measurement object 100 facing the measurement opening 30 can be imaged, for example, the optical axis of the camera passes through the center position of the measurement opening 30. ) A camera is disposed at at least one of the position on the inner surface side of the left side wall (second side wall) 23 corresponding to the position of the inner surface side 22 and the position of the through opening 4b. As shown in FIG. 11, the camera 140 is electrically connected to the monitor 34 via the control unit 33 and the control unit 33 so that the measurement target 100 captured by the camera 140 can be displayed on the monitor 34. .

  With this configuration, the measurement object 100 facing the measurement openings 4a and 4b can be directly and easily observed on the monitor 34 via the camera 140, and the measurement position of the measurement object 100 can always be accurately confirmed.

  Further, the through openings 4a and 4b are preferably arranged at positions that do not overlap with the optical paths and the optical path extension lines from the gloss measurement light source 311 and the color measurement measurement light source 321. The positions of the through openings 4a and 4b are preferably on the side of the gloss measurement light receiving lens 314, which is behind the normal line P passing through the measurement opening 30 with respect to the measurement opening 30, and more preferably 7, it is on the normal P passing through the measurement aperture 30.

  In the above-described embodiment, the two through openings 4a and 4b are provided. However, the two through openings 4a and 4b may be configured by one through opening formed in either the right side wall 22 or the left side wall 23. Further, the through openings 4a and 4b are not limited to those formed on the side walls, but may be formed on the upper wall, for example, and can be changed as appropriate.

  In the above-described embodiment, the observation light source is the gloss measurement light source 311. However, the observation light source is not limited to this, and for example, the color measurement measurement light source 321 is used as the observation light source, or the observation light source is The gloss measurement light source 311 and the color measurement measurement light source 321 may be provided separately and can be changed as appropriate.

  In the above embodiment, the opening / closing operation member is configured to be manually operated. However, the opening / closing operation member is not limited to this type. For example, the opening / closing operation member is operated by a drive motor, or the shutter members 51a, 51b are operated. A direct opening / closing operation may be performed by a drive motor, and can be changed as appropriate.

  The present specification discloses various aspects of the technology as described above, and the main technologies are summarized below.

  An optical property measurement apparatus according to an aspect includes an optical property measurement unit that has a measurement aperture and measures a plurality of different optical properties in a measurement object facing the measurement aperture by using a plurality of optical systems having different geometries. And a measurement object observation unit that directly observes the measurement object that faces the measurement opening, and an observation light source that illuminates the measurement object that faces the measurement opening.

  In such an optical property measuring apparatus, the measurement object observing unit can directly observe the measurement object facing the measurement aperture and can clearly and accurately confirm the measurement position of the measurement object. Since the optical characteristic measuring device can be confirmed without using a lens as in the prior art, it can be easily manufactured and can be manufactured at low cost.

  In another aspect, the above-described optical property measurement apparatus further includes a housing that houses the optical property measurement unit, and the measurement object observation unit is a through opening formed in the housing.

  Such an optical characteristic measuring apparatus is only required to form a through-opening in the housing, can be configured simply, and can be manufactured at a lower cost.

  In another aspect, the above-described optical property measurement apparatus further includes a light transmissive member fitted in the through opening.

  Such an optical characteristic measuring apparatus can reduce the risk of dust and the like entering the housing from the through opening, and can be measured more accurately by the optical characteristic measuring unit.

  In another aspect, in the above-described optical characteristic measurement devices, the measurement target observation unit further includes a shutter mechanism that opens and closes the through opening.

  Such an optical characteristic measuring device can confirm the measurement position of the measurement object by opening the through opening when confirming the measurement position of the measurement object. On the other hand, when measuring the optical characteristics of the measurement target, by closing the through-opening, it is possible to reduce the risk of light entering from the outside into the housing, and the external light is less likely to affect the measurement of the optical characteristics. Optical characteristics can be measured more accurately.

  In another aspect, in the above-described optical characteristic measuring apparatus, the shutter mechanism includes a shutter member that opens and closes the through opening, and an opening and closing operation member that opens and closes the shutter member.

  Such an optical characteristic measuring device can open and close the shutter member by the opening and closing operation member, can easily open and close the shutter member, and can be used conveniently.

  In another aspect, in the above-described optical characteristic measurement device, the opening / closing member is held in the housing so as to be manually operable from the outside of the housing.

  Such an optical characteristic measuring device can make the shutter member open and close more easily and can be used more conveniently.

  In another aspect, in the above-described optical property measurement apparatus, the housing includes first and second side walls disposed opposite to both sides of the measurement opening with the measurement opening interposed therebetween, A first through opening formed in the first side wall; and a second through opening formed in the second side wall.

  Such an optical characteristic measuring apparatus can confirm the measurement position of the measurement object from the through opening of either the first side wall or the second side wall. Therefore, the optical property measuring apparatus can be easily used because the measuring position of the measuring object can be confirmed from the through opening that can be easily confirmed by the user, for example.

  In another aspect, in the above-described optical characteristic measurement devices, the shutter member includes a first shutter member that opens and closes the first through opening, and a second shutter member that opens and closes the second through opening, The number of the opening / closing operation member is one, and the opening / closing operation member, the first shutter member, and the first shutter member are arranged so that the first shutter member and the second shutter member can be interlocked with the operation of the opening / closing operation member. Two through openings are connected.

  Such an optical characteristic measuring apparatus can simultaneously open and close the first shutter member and the second shutter member by operating one opening and closing member, and can open and close the two first shutter members and the second shutter member. Can be made easy.

  In another aspect, in the above-described optical property measurement apparatus, the optical property measurement unit includes a light source that applies measurement light to the measurement object that faces the measurement opening in order to measure the optical property of the measurement object. The through-opening is disposed at a position that does not overlap the optical path from the light source and the optical path extension line.

  Such an optical characteristic measuring apparatus can reduce the possibility that external light through the through-opening may affect the measurement of the optical characteristic even when external light enters the inside through the through-opening. It can be measured more accurately.

  In another aspect, in the above-described optical characteristic measurement device, the measurement target observation unit displays a camera that directly images the measurement target facing the measurement aperture, and the measurement target captured by the camera. A display unit.

  Such an optical characteristic measurement device can directly observe the measurement object facing the measurement aperture on the display unit via the camera, and can accurately confirm the measurement position of the measurement object.

  In another aspect, in the above-described optical property measurement apparatus, the optical property measurement unit includes a gloss measurement unit that measures the gloss of the measurement target, and the gloss measurement unit irradiates the measurement target with measurement light. A gloss measurement light source is provided, and the observation light source is the gloss measurement light source.

  In such an optical characteristic measuring apparatus, the gloss measurement unit measures the specular reflected light reflected from the measurement light source from the gloss measurement light source, and therefore measures the irradiation diameter from the gloss measurement light source that hits the measurement object and the measurement target. The site matches. Therefore, the optical characteristic measuring apparatus only needs to align the irradiation site that hits the measurement object with the measurement site of the measurement object, and can accurately align the measurement position of the measurement object.

  In another aspect, in the above-described optical property measurement apparatus, the gloss measurement unit includes an irradiation diameter switching unit that switches a size of a gloss irradiation diameter that the gloss measurement light source hits the measurement target.

  In such an optical characteristic measuring apparatus, the gloss measurement unit includes an irradiation diameter switching unit that switches the size of the gloss irradiation diameter of the gloss measurement light source corresponding to the measurement target. For example, the measurement target is a printed matter or a small part. When measuring the measurement site with a small diameter, first, roughly align the measurement site with the irradiation diameter in a state larger than the diameter of the measurement site, and then set the irradiation diameter to the measurement site diameter by the irradiation diameter switching unit. Make the same diameter and finely align with the measurement site. Thereby, the irradiation diameter for gloss can be easily aligned with a measurement site having a small diameter.

  This application is based on Japanese Patent Application No. 2016-93731 filed on May 9, 2016, the contents of which are included in the present application.

  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. Therefore, 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. To be construed as inclusive.

According to the present invention, an optical property measuring apparatus can be provided.

Claims (12)

An optical property measurement unit that has a measurement aperture and measures a plurality of different optical properties in a measurement object facing the measurement aperture by using a plurality of optical systems having different geometries;
A measurement object observation unit for directly observing the measurement object facing the measurement opening;
An observation light source that illuminates the measurement object facing the measurement aperture;
Optical property measuring device. A housing for accommodating the optical property measuring unit;
The measurement object observation unit is a through opening formed in the housing.
The optical property measuring apparatus according to claim 1. Further comprising a translucent member fitted into the through opening,
The optical property measuring apparatus according to claim 2. The measurement object observation unit further includes a shutter mechanism that opens and closes the through opening.
The optical characteristic measuring apparatus according to claim 2 or 3. The shutter mechanism includes a shutter member that opens and closes the through opening, and an opening and closing operation member that opens and closes the shutter member.
The optical property measuring apparatus according to claim 4. The opening / closing operation member is held in the housing so as to be manually operable from the outside of the housing.
The optical property measuring apparatus according to claim 5. The housing includes first and second side walls disposed opposite to both sides of the measurement opening across the measurement opening,
The through-opening includes a first through-opening formed in the first side wall, and a second through-opening formed in the second side wall.
The optical characteristic measuring apparatus according to claim 2. The shutter member includes a first shutter member that opens and closes the first through-opening, and a second shutter member that opens and closes the second through-opening,
The opening / closing operation member is one,
The opening / closing operation member, the first shutter member, and the second through-opening are coupled so that the first shutter member and the second shutter member can be interlocked with the operation of the opening / closing operation member.
The optical property measuring apparatus according to claim 2. The optical property measurement unit includes a light source that applies measurement light to the measurement object facing the measurement aperture in order to measure the optical property of the measurement object,
The through-opening is disposed at a position that does not overlap the optical path from the light source and the optical path extension line,
The optical characteristic measuring apparatus according to claim 2. The measurement object observation unit includes a camera that directly images the measurement object facing the measurement aperture;
A display unit that displays the measurement object imaged by the camera.
The optical property measuring apparatus according to claim 1. The optical property measurement unit includes a gloss measurement unit that measures the gloss of the measurement target,
The gloss measurement unit includes a gloss measurement light source that applies measurement light to the measurement target,
The observation light source is the gloss measurement light source,
The optical property measuring apparatus according to claim 1. The gloss measurement unit includes an irradiation diameter switching unit that switches the size of the irradiation diameter of the gloss that the light source for gloss measurement hits the measurement target.
The optical property measuring apparatus according to claim 11.

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