Color measuring device

Abstract

To solve the problem in which: in acquiring a white reference value, when a support plate is in a state of opening a measurement window, an appropriate white reference value cannot be acquired, and when the support plate is in a state of closing the measurement window, the color of an object to be measured cannot be appropriately measured.SOLUTION: A color measuring device comprises: an opening that is formed in an opening forming member arranged on a bottom face of the device for taking light arriving from an object to be measured into the device; an incident light processing unit that processes the light incident through the opening; a shutter unit that is displaceable between a closing position for covering the opening and an opening position for opening the opening, the shutter unit having a reflection reference surface to be a reference of a reflectance at a position facing the opening; and detection means that changes a detection signal to be output according to the displacement of the shutter unit.SELECTED DRAWING: Figure 44

Description

[Technical field]

[0001] The present invention relates to a color measuring device that measures color based on light arriving from a measurement object. [Background technology]

[0002] Conventionally, colorimetric devices that measure color based on light arriving from a measurement object have been known. For example, there is a colorimetric device that measures color by making the light arriving from the measurement object enter a spectral filter, extracting a predetermined wavelength component with the spectral filter, receiving the light with a photodiode, and detecting the voltage output from the photodiode. In such a colorimetric device, an opening is provided on the bottom surface of the device body. If this opening is left open, dust and the like will enter the inside of the device, so a member that can be switched between covering the opening and exposing it may be provided as shown in Patent Document 1.

[0003] In Patent Document 1, the member covering the opening is called a support plate. The support plate is provided so as to be movable between a position covering the measurement window, which is an opening, and a position exposing the measurement window. A white reference tile is provided on the support plate, and the white reference value can be obtained when the support plate covers the measurement window. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent Application Publication No. 2010 / 0328656 Summary of the Invention [Problem to be solved by the invention]

[0005] In Patent Document 1, when obtaining a white reference value, if the support plate opens the measurement window, an appropriate white reference value cannot be obtained, and if the support plate blocks the measurement window, the color of the object to be measured cannot be measured appropriately. [Means for solving the problem]

[0006] In order to solve the above problems, the color measuring device of the present invention is characterized in that it comprises an opening formed in an opening forming member arranged on the bottom surface of the device for introducing light arriving from the object to be measured into the inside of the device, an incident light processing unit for processing the light incident through the opening, a shutter unit which is a unit that can be displaced between a closed position that covers the opening and an open position that opens the opening, and which has a reflective reference surface that serves as a standard for reflectance at a position facing the opening, and a detection means for changing the detection signal output in accordance with the displacement of the shutter unit. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a block diagram showing the functions of the color measuring device. [Diagram 2] FIG. 2 is a cross-sectional view of an optical filter device. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 4 is a perspective view showing the arrangement of the circuit boards and the battery from above. [Figure 9] FIG. 4 is a perspective view showing the arrangement of each circuit board and the battery from below. [Figure 10] The upper figure is a perspective view showing the upper surface of the panel substrate, and the lower figure is a perspective view showing the lower surface of the panel substrate. [Figure 11] The upper figure is a perspective view showing the top surface of the battery control board, and the lower figure is a perspective view showing the bottom surface of the battery control board. [Figure 12] The upper figure is a perspective view showing the upper surface of the light receiving substrate, and the lower figure is a perspective view showing the lower surface of the light receiving substrate. [Figure 13]The upper figure is a perspective view showing the upper surface of the light-emitting substrate, and the lower figure is a perspective view showing the lower surface of the light-emitting substrate. [Figure 14] FIG. [Figure 15] FIG. [Figure 16] FIG. [Figure 17] FIG. [Figure 18] FIG. [Figure 19] FIG. 2 is a cross-sectional view of the light-receiving unit board holding frame and the light-emitting unit board holding frame cut along the YZ plane. [Figure 20] Cross-sectional view taken along line AA in FIG. 5. [Figure 21] Cross-sectional view taken along line B-B in FIG. 5 . [Figure 22] Cross-sectional view taken along CC in FIG. 5 . [Figure 23] FIG. [Figure 24] FIG. [Diagram 25] FIG. [Figure 26] FIG. [Figure 27] FIG. [Figure 28] FIG. [Figure 29] FIG. [Diagram 30] FIG. 4 is a perspective view of the color measurement device as viewed from below, with the shutter unit in a closed position. [Diagram 31] FIG. 4 is a perspective view of the color measurement device as viewed from below, with the shutter unit in an open position. [Diagram 32] FIG. 4 is a perspective view of the color measurement device from which the bottom housing has been removed, as viewed from below, with the shutter unit in a closed position. [Diagram 33] FIG. 2 is a perspective view of the color measurement device from which the bottom housing has been removed, as viewed from below, with the shutter unit in an open position. [Diagram 34] FIG. 7 is a view corresponding to a part of the cross section DD in FIG. 6, with the shutter unit in a closed position. [Diagram 35] 7A and 7B are diagrams corresponding to a part of the E-E cross section in FIG. 6, in which the upper diagram shows the shutter unit in the closed position, and the lower diagram shows the shutter unit in the open position. [Diagram 36] FIG. 7 is a diagram corresponding to a part of the cross section DD in FIG. 6, with the bottom housing omitted, showing a state in which the shutter unit is in the -Y direction from the closed position. [Figure 37] FIG. 7 is a view corresponding to a part of the cross section DD in FIG. 6, with the bottom housing omitted, showing a state in which the shutter unit is in an open position. [Figure 38] FIG. [Figure 39] FIG. [Diagram 40] FIG. [Diagram 41] FIG. 7 is a view corresponding to a part of the E-E cross section in FIG. 6, with the shutter unit in a closed position. [Diagram 42] 7 is a diagram corresponding to a part of the E-E cross section in FIG. 6, showing a state in which the shutter unit is in the -Y direction from the closed position. [Diagram 43] FIG. [Diagram 44] 6 is a view corresponding to a part of the cross section GG in FIG. 5, showing a state in which the shutter unit is in an open position. [Diagram 45] 6 is a view corresponding to a part of the cross section GG in FIG. 5, showing a state in which the shutter unit is in a closed position. [Figure 46] 5A and 5B are diagrams illustrating the relationship between an operating area of ​​a shutter unit and a detection area of ​​a shutter detection section. [Figure 47] FIG. 13 illustrates another embodiment of the shutter unit, with the shutter unit in a closed position. [Figure 48]FIG. 13 illustrates another embodiment of the shutter unit, with the shutter unit shown in an open position. [Figure 49] FIG. 13 illustrates another embodiment of the shutter unit, with the shutter unit in a closed position. [Figure 50] FIG. 13 illustrates another embodiment of the shutter unit, with the shutter unit shown in an open position. [Figure 51] 6 is a flowchart showing the process of a control unit when a power-off command is received. [Figure 52] 10 is a flowchart showing the processing contents of a control unit when acquiring a reference value. [Diagram 53] 6 is a flowchart showing the processing contents of a control unit when performing color measurement. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention will now be briefly described. The color measuring device of the first aspect is characterized in that it comprises an opening formed in an opening forming member arranged on the bottom surface of the device for introducing light arriving from a measurement object into the device, an incident light processing unit for processing the light incident through the opening, a shutter unit which is a unit that can be displaced between a closed position that covers the opening and an open position that opens the opening, and which has a reflective reference surface facing the opening that serves as a standard for reflectance, and a detection means which changes the detection signal output in accordance with the displacement of the shutter unit.

[0009] According to this aspect, the color measuring device is equipped with a detection means that changes the output detection signal in response to the displacement of the shutter unit, so that the position of the shutter unit can be grasped and appropriate control can be performed in accordance with the position of the shutter unit.

[0010] A second aspect is the first aspect, characterized in that the detection means is composed of a magnetic sensor that changes a detection signal depending on the intensity of a magnetic field. According to this aspect, the detection means is composed of a magnetic sensor that changes the detection signal depending on the strength of the magnetic field, so there is no need to provide a dedicated opening or the like for transmitting detection light as in an optical sensor, and it is possible to avoid a decrease in airtightness that would be caused by the formation of an unnecessary opening.

[0011] A third aspect is characterized in that, in the first or second aspect, the control unit receives a detection signal from the detection means, and when the control unit receives a power off command which is a command to turn off the power of the device, if the shutter unit is in the closed position, it transitions to power off of the device, and if the shutter unit is in the open position, it suspends the transition to power off of the device.

[0012] According to this aspect, the device is not powered off while the shutter unit remains in the open position, thereby preventing dust and other particles from entering the device through the opening when the device is powered off.

[0013] A fourth aspect is characterized in that, in the third aspect, when the control unit receives a command to power off the device and the shutter unit is in the open position, it causes a display unit that displays various types of information to display an alert that the shutter unit is in the open position.

[0014] According to this aspect, when the control unit receives a command to power off the device and the shutter unit is in the open position, the control unit displays an alert on the display unit to the effect that the shutter unit is in the open position, thereby improving usability.

[0015] A fifth aspect is characterized in that, in the first or second aspect, the control unit receives a detection signal from the detection means, and when acquiring a reference value using the reflective reference surface, the control unit acquires the reference value if the shutter unit is in the closed position, and suspends acquisition of the reference value if the shutter unit is in the open position.

[0016] According to this aspect, when the control unit acquires a reference value using the reflective reference surface, if the shutter unit is in the closed position, it acquires the reference value, and if the shutter unit is in the open position, it suspends acquisition of the reference value, thereby enabling the control unit to acquire the reference value appropriately.

[0017] The sixth aspect is characterized in that, in the first or second aspect, the control unit receives a detection signal from the detection means, and when the control unit receives a command to perform colorimetry, if the shutter unit is in the open position, it performs colorimetry, and if the shutter unit is in the closed position, it suspends the execution of colorimetry.

[0018] According to this aspect, when the control unit receives a command to perform color measurement, if the shutter unit is in the open position, it performs color measurement, and if the shutter unit is in the closed position, it suspends the execution of color measurement, thereby enabling appropriate color measurement values ​​to be obtained.

[0019] The seventh aspect is characterized in that, in the first or second aspect, the control unit receives a detection signal from the detection means, and when the control unit receives a command to perform colorimetry, if the shutter unit is in the open position, it performs colorimetry, and if the shutter unit is in the closed position, it obtains a reference value using the reflective reference surface. According to this aspect, when the control unit receives a command to perform color measurement, if the shutter unit is in the open position, it performs color measurement, and if the shutter unit is in the closed position, it obtains a reference value using the reflective reference surface, so that appropriate processing can be performed according to the position of the shutter unit.

[0020] The eighth aspect is characterized in that, in any of the first to seventh aspects, it comprises a spring member that presses the shutter unit toward the open position and the closed position, and a link member that constitutes the shutter unit, and the spring member changes its posture in accordance with the displacement of the shutter unit, so that when the shutter unit is on the closed position side of a neutral position between the closed position and the open position, the spring member presses the link member toward the closed position, and when the shutter unit is on the open position side of the neutral position, the spring member presses the link member toward the open position.

[0021] According to this aspect, the spring member changes its posture in response to the displacement of the shutter unit, thereby switching the direction of pressure on the link member, i.e., the shutter unit, so that a means for holding the shutter unit in the closed position and the open position can be constructed at low cost.

[0022] The ninth aspect is characterized in that, in the eighth aspect, the area in the displacement area of ​​the shutter unit where the detection means sends out a detection signal indicating the blocking position is set with a margin from the neutral position toward the blocking position.

[0023] According to this aspect, the region in the displacement region of the shutter unit where the detection means sends out the detection signal indicating the closed position is set with a margin from the neutral position to the closed position side, so that when the detection means sends out the detection signal indicating the closed position, the shutter unit is certainly in the closed position. This eliminates the risk of the shutter unit being determined to be in the closed position even when it is in an intermediate position, and thus makes it possible to reliably obtain a reference value using the reflection reference surface.

[0024] A tenth aspect is characterized in that, in any of the first to ninth aspects, the shutter unit comprises a shutter member that has the reflective reference surface and blocks the opening when in the blocking position, a shutter holding member that holds the shutter member so that the shutter member can be displaced in the direction toward and away from the opening, and a pressing member that presses the shutter member toward the opening.

[0025] According to this aspect, since the shutter member is configured to be pressed toward the opening by the pressing member, even if there is a manufacturing error or an assembly error of a part, or wear and tear due to use, the shutter member is pressed toward the opening, so that it is possible to prevent a gap from being generated between the shutter member and the opening, and as a result, it is possible to effectively prevent dust and the like from entering the opening.

[0026] An eleventh aspect of the present invention is the tenth aspect of the present invention, characterized in that the reflection reference surface is located in a central area in a planar direction of the shutter. According to this aspect, in a configuration in which the reflection reference surface is located in the central region in the planar direction of the shutter, the operational effect of the above-mentioned ninth aspect can be obtained.

[0027] A twelfth aspect is characterized in that, in the second aspect, the shutter unit is provided with a magnet that is detected by the magnetic sensor, and the straight-line distance between the magnetic sensor and the magnet is relatively longer when the shutter unit is in the closed position than when it is in the open position. According to the present aspect, the straight-line distance between the magnetic sensor and the magnet is relatively longer when the shutter unit is in the closed position than when it is in the open position, so that the magnetic sensor can be positioned away from the opening, thereby preventing the device from becoming larger due to the magnetic sensor being positioned close to the opening.

[0028] The 13th aspect is characterized in that, in any of the 1st to 12th aspects, the incident light processing unit includes a tunable optical filter that transmits a predetermined wavelength component of the incident light, and a light receiving unit that receives the light that has transmitted through the optical filter. According to this aspect, in a configuration in which the incident light processing unit includes a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light, and a light receiving unit that receives the light that has passed through the optical filter, the functional effects of any one of the above-mentioned first to twelfth aspects can be obtained.

[0029] A fourteenth aspect of the present invention is the thirteenth aspect, characterized in that the optical filter is a Fabry-Perot etalon. According to this aspect, in a configuration in which the optical filter is a Fabry-Perot etalon, the effects of the thirteenth aspect described above can be obtained.

[0030] The present invention will be specifically described below. It should be noted that the XYZ coordinate system shown in each drawing is a Cartesian coordinate system, in which the XY plane is a horizontal plane and the YZ plane is a vertical plane. The Z-axis direction is a vertical direction and is an example of a first direction that intersects with the top surface 50e and the bottom surface 50f of the color measurement device 1. The Y-axis direction is an example of a second direction that is perpendicular to the first direction, i.e., the vertical direction, and is the longitudinal direction when the color measurement device 1 is viewed vertically. The X-axis direction is an example of a third direction that is perpendicular to the Y-axis direction and is the transverse direction when the color measurement device 1 is viewed vertically. In this specification, the configuration of the color measurement device 1 will be described assuming that the bottom surface 50f is placed on a placement surface parallel to a horizontal surface, and the longitudinal direction of the color measurement device 1 is along the Y-axis direction.

[0031] [Overall configuration of colorimeter 1] First, the overall configuration of a color measuring device 1 according to this embodiment will be described with reference to FIGS. The color measuring device 1 includes a configuration for measuring the color based on light arriving from a measurement object 200. The light arriving from the measurement object 200 includes light reflected by the measurement object 200 and light emitted by the measurement object 200 itself. The color measuring device 1 includes a bandpass filter 7, an optical filter device 3, a light receiving unit 4, a capacitance detection unit 6, a light emitting unit 9, an MCU (Micro Controller Unit) 10, a wired IF (Interface) 12, a wireless communication unit 13, an operation unit 14, a display unit 15, a battery control unit 16, and a battery 17. The bandpass filter 7, the optical filter device 3, and the light receiving unit 4 constitute an incident light processing unit 2 that processes the light arriving from the measurement target 200 and incident thereon.

[0032] The bandpass filter 7 transmits light in the visible light range, for example, 380 nm to 720 nm, out of the light arriving and entering from the measurement object 200, and cuts light in the ultraviolet light range and the infrared light range. This allows light in the visible light range to enter the optical filter device 3. The light arriving at the bandpass filter 7 from the measurement object 200 reaches the bandpass filter 7 via an opening 21a and a measurement window 87a (see FIG. 20), which will be described later.

[0033] The optical filter device 3 selectively transmits an arbitrary wavelength component from the visible light that has passed through the bandpass filter 7. The light that has passed through the optical filter device 3 is incident on a photodiode 4a (see FIG. 20), which is an example of a light receiving element, and is processed by a light receiving unit 4 that includes the photodiode 4a. The light receiving unit 4 converts the intensity of the received light into a voltage value, and further converts the voltage value into a digital signal and outputs it to the MCU 10. The color measuring device 1 can measure the spectrum of the measurement object 200 by repeatedly selecting a wavelength with the optical filter device 3 and acquiring the received light intensity using the light receiving unit 4.

[0034] The configuration of the optical filter device 3 will now be described with reference to Fig. 2. In this embodiment, the optical filter device 3 is a wavelength-tunable Fabry-Perot etalon that transmits a predetermined wavelength component of the light arriving from and incident on the measurement target 200, and is a wavelength filter that utilizes multiple interference between two opposing reflecting surfaces. In FIG. 2, the optical filter device 3 includes a tunable interference filter 45 , which is built into an exterior configured by a first glass member 30 , a second glass member 31 , and a case 32 .

[0035] The case 32 and the first glass member 30, and the case 32 and the second glass member 31 are respectively joined by a joining member 33 such as low-melting point glass or epoxy resin. The tunable interference filter 45 and the case 32 are fixed by a fixing material 34 such as an adhesive. An electrode 36 on the outer surface of the case 32 and the tunable interference filter 45 are electrically connected by wire bonding 35 and wiring inside the case 32.

[0036] The tunable interference filter 45 includes a base substrate 37 and a diaphragm substrate 38. The base substrate 37 and the diaphragm substrate 38 are bonded together by a bonding film 43. Mirrors 39 are formed on the base substrate 37 and the diaphragm substrate 38, respectively. The outermost surface of the opposing mirrors 39 is made of a conductor. The capacitance between the opposing mirrors 39 is detected by a capacitance detection unit 6 (see FIG. 1). The capacitance detection unit 6 is formed of a CV (Capacitance to Voltage) converter, and converts the detected capacitance into a voltage value, which is then converted into a digital value and transmitted to the MCU 10. The distance between the opposing mirrors 39 is controlled by an electrostatic actuator constituted by a fixed electrode 40 and a movable electrode 41 that are formed concentrically when viewed from the Z-axis direction and that face each other.

[0037] When a voltage is applied between the facing fixed electrode 40 and movable electrode 41, a force is generated by electrostatic force that attracts the fixed electrode 40 and the movable electrode 41 to each other. At this time, the diaphragm portion 42 formed in a concentric shape is deformed, so that the mirror 39 of the diaphragm substrate 38 is attracted toward the base substrate 37, and the distance between the facing mirrors 39 is controlled. Then, the wavelength of light that passes through the tunable interference filter 45 is selected in accordance with the distance between the facing mirrors 39.

[0038] During spectroscopic measurement, light from the measurement target 200 is incident on the optical filter device 3 from the second glass member 31 side to the first glass member 30 side along the optical axis CL. The optical axis CL is parallel to the Z-axis direction and passes through the centers of the opening 21a (see FIG. 20), the measurement window 87a (see FIG. 20), the wavelength-tunable interference filter 45, and the photodiode 4a (see FIG. 20). In particular, the opening 21a, the measurement window 87a, and the wavelength-tunable interference filter 45 (see FIG. 2) are perfectly circular when viewed from the Z-axis direction, and the optical axis CL passes through their centers. The optical axis CL may hereinafter be referred to as the center position CL. Then, the light incident on the optical filter device 3 interferes between the facing mirrors 39, and light with a wavelength selected corresponding to the distance between the facing mirrors 39 passes through the tunable interference filter 45. The light that has passed through the tunable interference filter 45 passes through the first glass member 30 and proceeds toward the light receiving unit 4. The optical filter device 3 has the above configuration.

[0039] Returning to FIG. 1, the MCU 10 is a control device based on a microprocessor, and has a built-in memory in which various programs and various data required for controlling the colorimetric device 1 are stored. 2, the MCU 10 sends control information required for driving the electrostatic actuator configured by the fixed electrode 40 and the movable electrode 41 facing each other to an amplifier (not shown), and the amplifier supplies a predetermined driving voltage to the optical filter device 3. The MCU 10 then compares information related to the voltage value output from the capacitance detection unit 6 with a stored value, and performs feedback control of the optical filter device 3 based on the information.

[0040] The light emitting unit 9 emits light for measurement toward the measurement target 200. The light emitting unit 9 is composed of a plurality of light emitting elements, specifically a plurality of LEDs, each of which emits light with a different wavelength distribution. The MCU 10 controls the turning on and off of the light emitting unit 9.

[0041] The wired IF 12 and the wireless communication unit 13 are components for communicating with an external device, and as an example of a standard for communicating via the wired IF 12, USB (Universal Serial Bus) can be adopted. Also, as an example of a standard for the wireless communication unit 13, Bluetooth can be adopted. USB and Bluetooth are registered trademarks. The MCU 10 transmits various data to an external device via the wired IF 12 or the wireless communication unit 13, and receives various data from an external device. Also, the color measuring device 1 can charge the battery 17 by receiving power from an external device via the wired IF 12.

[0042] The operation unit 14 is composed of a power button and various operation setting buttons, and sends signals according to operations to the MCU 10. The operation unit 14 will be described in further detail later. The display unit 15 is formed, for example, of a liquid crystal panel, and displays various information such as a user interface for setting color measurement conditions based on a signal sent from the MCU 10 and color measurement results. The magnetic sensor 128 that sends a detection signal to the MCU 10 is a sensor for detecting the position of the shutter unit 110, which will be described later. The magnetic sensor 128 will be described later.

[0043] The battery 17 is a lithium ion secondary battery in this embodiment, and supplies power to each component that requires power in the color measuring device 1. The components that receive power from the battery 17 include an incident light processing unit 2, which will be described later. The battery control unit 16 performs various controls such as charging control of the battery 17.

[0044] [External configuration of colorimeter 1] Next, the external configuration of the color measuring device 1 will be described with reference to FIGS. The device body 50 of the color measurement device 1 is configured so that the outer casing as a whole forms a box shape with a main housing 51, an upper housing 52, and a bottom housing 53. In this embodiment, the main housing 51, the upper housing 52, and the bottom housing 53 are formed of a resin material. In each figure, reference numeral 50a indicates the side surface of the device body 50 in the +Y direction, which will be referred to as the front surface 50a below. Reference numeral 50b (see FIG. 6) indicates the side surface of the device body 50 in the +X direction, which will be referred to as the right side surface 50b below. Reference numeral 50c indicates the side surface of the device body 50 in the -X direction, which will be referred to as the left side surface 50c below. Reference numeral 50d indicates the side surface of the device body 50 in the -Y direction, which will be referred to as the rear side 50d below. In this specification, the terms "upper," "lower," "left," and "right" are used based on the direction as seen by a user when the user holds and uses the color measuring device 1 as shown in Figure 27.

[0045] 3 to 6, the front surface 50a is formed by the front wall portion 51a of the main housing 51, the right side surface 50b is formed by the right wall portion 51b of the main housing 51, the left side surface 50c is formed by the left wall portion 51c of the main housing 51, and the rear surface 50d is formed by the rear wall portion 51d of the main housing 51. Reference numeral 50e denotes a surface of the device body 50 in the +Z direction, which will be referred to as the top surface 50e below, and reference numeral 50f denotes a surface of the device body 50 in the -Z direction, which will be referred to as the bottom surface 50f below.

[0046] An operation unit 14 and a display unit 15 are arranged on an upper surface 50e of the device body 50 along the Y-axis direction. The operation unit 14 is configured to include a power button 55, a decision button 54, a back button 56, and a cross button 60. The cross button 60 is configured to include an up button 61, a down button 62, a left button 63, and a right button 64. In the color measurement device 1 according to this embodiment, all of the operation buttons are disposed on the upper surface 50e, and are concentrated in the operation unit 14.

[0047] The power button 55 is a button for turning on and off the power of the color measurement device 1. The decision button 54 is a button for deciding various settings displayed on the display unit 15, that is, a button for deciding the color measurement conditions, and also a button for executing color measurement. The decision button 54 has a perfect circle shape when viewed from the Z-axis direction. The back button 56 is a button for returning to the previous state in the user interface displayed on the display unit 15, and is also a button for canceling the execution of an operation.

[0048] The cross button 60 is a button for selecting various items in the user interface displayed on the display unit 15. A vertical line 58a parallel to the Y-axis direction is marked on the surface of the upper button 61, and a vertical line 58b parallel to the Y-axis direction is marked on the surface of the lower button 62. The vertical lines 58a, 58b are located at positions that pass through the center position CL when extended in the Y-axis direction. Furthermore, a horizontal line 58c parallel to the X-axis direction is marked on the surface of the left button 63, and a horizontal line 58d parallel to the X-axis direction is marked on the surface of the right button 64. Horizontal lines 58c, 58d are positioned so as to pass through center position CL when extended in the X-axis direction.

[0049] Various information such as color measurement results is displayed on the display unit 15. In this embodiment, the display unit 15 is configured with a liquid crystal display (LCD) 67 (see also FIG. 8). Hereinafter, the liquid crystal display 67 will be abbreviated as LCD 67. A display unit cover 57, which is a transparent member, is provided on the upper portion of the LCD 67, and this display unit cover 57 forms a part of the upper surface 50e. In this embodiment, as shown in Fig. 20, there is almost no step between the top surface of the display cover 57 and the top surface of the operation unit 14, and as a result, the top surface 50e is configured as a flat surface with almost no steps overall. However, the top surface of the decision button 54 is slightly recessed as shown in Fig. 20, and is formed in a shape that fits comfortably with the pad of the user's finger when pressing the decision button 54 as shown in Fig. 27.

[0050] The bottom surface 50f is provided with a shutter unit 110 as shown in Figures 4 and 6. Figure 4 shows the shutter unit 110 in a closed position, and Figure 6 shows the shutter unit 110 in an open position. The shutter unit 110 can be displaced between the closed position and the open position by sliding along the Y-axis direction. The shutter unit 110 is also provided so as to be able to hold the closed position and the open position. The shutter unit 110, which will be described in detail later, is configured to include a shutter holding member 111 and a link member 113. The shutter holding member 111 has a plurality of ribs 111a on its surface. A user can slide the shutter unit 110 in the Y-axis direction by hooking the pad of a finger on the ribs 111a.

[0051] By opening the shutter unit 110, the opening 21a and the measurement window 87a are exposed as shown in Fig. 6. The opening 21a and the measurement window 87a are open at the bottom surface 50f of the device. Note that the opening here means that light is let in, and may be provided with, for example, a transparent glass plate. 20, the opening 21a is formed in the opening forming member 21, and the measurement window 87a is formed in the light collecting member 87 located in the +Z direction with respect to the opening forming member 21. The measurement light emitted from the light emitting unit 9 passes between the light collecting member 87 and the opening forming member 21 as indicated by the arrow inside the opening 21a in FIG. 20, and is emitted from the opening 21a toward the measurement object 200. The light arriving from the measurement object 200 is taken into the device from the opening 21a, and further enters the incident light processing unit 2 through the measurement window 87a.

[0052] 5 and 6, the center position CL coincides with the center positions of the opening 21a and the measurement window 87a. A line VCL is a line parallel to the Y-axis direction and passes through the center position CL when viewed from the Z-axis direction. A line HCL is a line parallel to the X-axis direction and the Y-axis direction and passes through the center position CL when viewed from the Z-axis direction. In this embodiment, the center position CL coincides with the center position of the enter button 54 on the XY plane, and also coincides with the center position of the cross button 60. The power button 55 and the back button 56 are disposed symmetrically with respect to the line VCL as shown in FIG.

[0053] Next, as shown in Fig. 3, a wired IF 12 is provided on the front surface 50a of the device main body 50. Also, as shown in Fig. 4, an opening 50m is formed on the rear surface 50d of the device main body 50, and a reset switch 71 (see Figs. 9 and 20) is provided behind the opening 50m. The reset switch 71 is a switch for resetting various settings of the colorimetric device 1 to their initial states. Two openings 50n are formed at positions in the -Z direction relative to the opening 50m, and a strap (not shown) can be passed through the two openings 50n so that the user can easily carry the color measuring device 1.

[0054] 3, 4, 21, and 22, grip portions 50g are formed on the right side surface 50b and the left side surface 50c of the device body 50. The grip portion 50g is configured by recesses 51g formed on each of the right wall portion 51b and the left wall portion 51c of the main housing 51. The recesses 51g are formed by a curved surface that approaches the center of the device body 50 in the X-axis direction as it moves in the -Z direction. The grip portion 50g allows the user to grip the device body 50 easily and securely.

[0055] [Colorimeter 1 board configuration] Next, the board configuration of the color measurement device 1 will be described. A main body assembly 1a shown in FIG. 7 is an assembly provided inside a main housing 51, and is configured by assembling a plurality of circuit boards and the like to a frame assembly 100 which is an assembly of a plurality of frames. The multiple circuit boards are configured by a panel board 65 as a "second circuit board", a battery control board 70 as a "third circuit board", a light receiving board 80 as a "first circuit board", and a light emitting board 85 as a "fourth circuit board" as shown in Figures 7, 8, and 9. These multiple circuit boards are arranged so as to overlap with each other at intervals along the Z-axis direction. A battery 17 is disposed between the panel board 65 and the battery control board 70 in the Z-axis direction.

[0056] The configuration of each circuit board will be described below with reference to Figures 10 to 13 and other figures as appropriate. Note that, below, the surface of each circuit board in the +Z direction may be referred to as the "upper surface," and the surface in the -Z direction may be referred to as the "lower surface." Also, in Figures 10 to 13, some of the electronic components provided on the boards are omitted from the illustration. The panel substrate 65 has an LCD connection section 66 on its upper surface as shown in the upper drawing of Fig. 10. The LCD 67 is connected to the LCD connection section 66 by a cable 67a as shown in Fig. 20.

[0057] In the upper diagram of Fig. 10, contacts for detecting pressing of each operation button are provided on the upper surface of the panel substrate 65 at positions corresponding to each operation button constituting the above-mentioned operation unit 14. Reference numeral 54a denotes a contact provided at a position corresponding to the decision button 54. Reference numerals 54a denotes a contact provided at a position corresponding to the decision button 54. Reference numerals 61a, 62a, 63a, and 64a denote contacts provided at positions corresponding to the up button 61, the down button 62, the left button 63, and the right button 64 (see Fig. 1, etc.), respectively. Reference numerals 55a and 56a denote contacts provided at positions corresponding to the power button 55 and the back button 56, respectively.

[0058] As shown in the lower diagram of Fig. 10, a first board connection connector 68 is provided on the lower surface of the panel board 65. The first board connection connector 68 and a fourth board connection connector 83 shown in the lower diagram of Fig. 12 are connected by an FFC (Flexible Flat Cable) 90 as shown in Fig. 9, thereby connecting the panel board 65 to a light receiving board 80 described later. As shown in the lower diagram of FIG. 10, the lower surface of the panel substrate 65 is provided with a wireless communication unit 13 which is a communication module.

[0059] Next, the battery control board 70 will be described with reference to Fig. 11. The battery control board 70 realizes the functions of the battery control unit 16 (see Fig. 1). As shown in the upper diagram of Fig. 11, the battery control board 70 is provided with a reset switch 71, a wired IF 12, a first battery connector 72, and a second battery connector 73 on the upper surface. A battery control circuit (not shown in Fig. 11) is provided on the upper surface of the battery control board 70. The first battery connector 72 is connected to the battery 17 by a first battery cable 92 as shown in FIG. 8, and the second battery connector 73 is connected to the battery 17 by a second battery cable 93 as shown in FIG.

[0060] The battery control board 70 includes a second board connector 74 as shown in the lower diagram of Fig. 11. The battery control board 70 and the light receiving board 80 are connected by fitting the second board connector 74 into a third board connector 82 shown in the upper diagram of Fig. 12. This allows power from the battery 17 to be supplied to each circuit board via the light receiving board 80.

[0061] Next, the light receiving unit substrate 80 will be described with reference to Fig. 12. The light receiving unit substrate 80 has a PD (Photo Diode) substrate 5 on its upper surface, and also has the above-mentioned third substrate connection connector 82. The PD substrate 5 has a photodiode 4a on its lower surface, as shown in Fig. 20. The PD substrate 5 is a circuit substrate that constitutes the light receiving unit 4 (see Fig. 1). In other words, the PD substrate 5 constitutes the incident light processing unit 2 (see Fig. 1) that processes incident light. The light receiving substrate 80 is provided on its lower surface with an optical filter device 3, a fourth substrate connector 83, and a fifth substrate connector 84. The fifth substrate connector 84 and a sixth substrate connector 88 shown in the lower diagram of Fig. 13 are connected with a connection cable 91 as shown in Fig. 9, thereby connecting the light receiving substrate 80 to a light emitting substrate 85 described later.

[0062] Incidentally, the light receiving unit substrate 80 is provided with electronic components not shown in Fig. 11. The electronic components not shown in Fig. 11 include the MCU 10 (see Fig. 1), a CV converter constituting the capacitance detection unit 6 (see Fig. 1), a DC / DC converter that converts the voltage of the battery 17, an amplifier that adjusts the output from the DC / DC converter under the control of the MCU 10 and supplies the output to the optical filter device 3, a temperature sensor for detecting the temperature around the optical filter device 3, and the like.

[0063] 11, a shielding sheet 29 is provided so as to surround the PD substrate 5 and the optical filter device 3 provided on the light receiving substrate 80 (see also FIG. 7). This prevents external light from entering the PD substrate 5 and the optical filter device 3.

[0064] Next, the light emitting substrate 85 will be described with reference to Fig. 13. The light emitting substrate 85 includes a light condensing member 87 extending between its upper and lower surfaces. The light condensing member 87 is formed with the measurement window 87a described above. 13, a sixth board connection connector 88 is provided on the lower surface of the light-emitting portion board 85, and a plurality of light-emitting elements 86 are provided around a light-collecting member 87. The plurality of light-emitting elements 86 are composed of light-emitting elements that emit light with different wavelength distributions. A light shielding member 89 is provided around the light emitting element 86 to prevent the measurement light emitted from the light emitting element 86 from leaking out.

[0065] [Frame Assembly Configuration] Next, the frame assembly 100 that constitutes the base of the device main body 50 will be described. 14 to 17, a frame assembly 100 includes a main frame 101, a battery holding frame 102, a light receiving board holding frame 103, and a bottom frame 105. In this embodiment, all the frames are formed by bending a metal material, more specifically, aluminum. Note that each frame can also be formed by die casting or the like instead of bending a metal material.

[0066] Each frame will be described below in order. The main frame 101 is a frame that forms the base of the device body 50, and has a frame surface that extends in the Y-axis direction and the Z-axis direction, in other words, a main plate portion 101a that forms a wide frame surface in the YZ plane, as shown in Fig. 18. The main frame 101 also has a panel substrate support portion 101b that extends in the -X direction from the +Z end of the main plate portion 101a, and forms a frame surface parallel to the XY plane. 7 and 20, the panel substrate support portion 101b supports the panel substrate 65 from below. The panel substrate 65 is fixed to the panel substrate support portion 101b with screws (not shown). The panel substrate 65 is in surface contact with the panel substrate support portion 101b, whereby heat from the panel substrate 65 is transferred to the panel substrate support portion 101b, i.e., the main frame 101.

[0067] 18, at the -Z end of the main plate portion 101a, the +Y end is bent in the -X direction, and the +Z end is further bent in the -Y direction to form a battery control board support portion 101e parallel to the XY plane. Similarly, at the -Z end of the main plate portion 101a, the -Y end is bent in the -X direction, and the +Z end is further bent in the +Y direction to form a battery control board support portion 101e parallel to the XY plane.

[0068] 7 and 20, the battery control board support part 101e supports the battery control board 70 from below. The battery control board 70 is fixed to the battery control board support part 101e by screws (not shown). The battery control board 70 is in surface contact with the battery control board support part 101e, so that heat from the battery control board 70 is transferred to the battery control board support part 101e, i.e., the main frame 101.

[0069] 14 to 18, below the battery control board support part 101e, a frame holding part 101f is formed so as to be parallel to the XY plane. The frame holding part 101f holds the light emitting part board holding frame 104 as shown in Figs. 14 and 16. The light emitting part board holding frame 104 is fixed to the underside of the frame holding part 101f by screws (not shown). The light emitting part board holding frame 104 is in surface contact with the frame holding part 101f. In other words, the light emitting part board holding frame 104 is in direct contact with the main frame 101. This allows heat from the light emitting part board holding frame 104 to be transferred to the frame holding part 101f, i.e., the main frame 101.

[0070] 7 and 20, the light-emitting portion board holding frame 104 holds the light-emitting portion board 85. The light-emitting portion board holding frame 104 is an example of a second subframe that holds the light-emitting portion board 85. The light-emitting portion board 85 is fixed to the underside of the light-emitting portion board holding frame 104 by screws (not shown). The light-emitting portion board 85 is in surface contact with the light-emitting portion board holding frame 104, whereby heat from the light-emitting portion board 85 is transferred to the light-emitting portion board holding frame 104, and ultimately to the main frame 101.

[0071] 15, a bottom frame 105 is fixed to the underside of the light-emitting portion board holding frame 104 by screws (not shown). The bottom frame 105 is a frame for fixing one end of a torsion spring 117 (see FIG. 32) that presses the shutter unit 110 (see FIG. 32), which will be described in detail later. The bottom frame 105 has a first plate portion 105a and a second plate portion 105b, and the second plate portion 105b is in surface contact with the light-emitting portion board holding frame 104. This allows heat from the light-emitting portion board holding frame 104 to be transferred to the bottom frame 105. In other words, the bottom frame 105 functions as a heat sink that promotes heat dissipation from the light-emitting portion board holding frame 104.

[0072] 14 to 18, the main frame 101 has a sub-plate portion 101c that extends in the -Z direction from the -X direction end of the panel substrate support portion 101b and forms a frame surface parallel to the YZ plane. Here, a battery holding frame 102 is attached to the main frame 101. The sub-plate portion 101c and the panel substrate support portion 101b, together with the battery holding frame 102, constitute a battery holding portion 100a that holds the battery 17 when the battery holding frame 102 is attached.

[0073] The battery holding part 100a will be further described below. The battery holding frame 102 has a battery support part 102a that forms a frame surface parallel to the XY plane. The battery support part 102a supports the battery 17 from below, as shown in Fig. 20. The bottom surface of the battery 17 is in surface contact with the battery support part 102a, whereby heat from the battery 17 is transferred to the battery support part 102a, i.e., the battery holding part 100a.

[0074] 14 to 17, a first frame portion 102b forming a frame surface parallel to the YZ plane rises in the +Z direction from the -X end of the battery support portion 102a. Also, a second frame portion 102c forming a frame surface parallel to the YZ plane rises in the +Z direction from the +X end of the battery support portion 102a. The first frame portion 102b is located in the -X direction with respect to the sub-plate portion 101c of the main frame 101 and is in surface contact with the sub-plate portion 101c. The second frame portion 102c is located in the -X direction with respect to the main plate portion 101a of the main frame 101 and is in surface contact with the main plate portion 101a.

[0075] In this manner, the battery holding portion 100a is configured to surround the battery 17 by the battery holding frame 102, the panel board supporting portion 101b, and the sub-plate portion 101c. The battery support portion 102a is an example of a first wall portion that supports the battery 17 from below, and constitutes the battery holding portion 100a. The panel board support portion 101b is an example of a second wall portion that faces the battery support portion 102a, and constitutes the battery holding portion 100a. The sub-plate portion 101c is an example of a third wall portion located in the -X direction with respect to the battery 17, and constitutes the battery holding portion 100a. The second frame portion 102c is an example of a fourth wall portion located in the +X direction with respect to the battery 17, and constitutes the battery holding portion 100a.

[0076] 7, 14, and 20, a restricting portion 101d is formed so as to extend in the -Z direction from the +Y direction end of the panel substrate supporting portion 101b. The restricting portion 101d restricts the movement of the battery 17 in the +Y direction as shown in FIG. 7 and FIG. 20, an elastic member 28 is provided between the restricting portion 101d and the first end 17a, which is the end of the battery 17 in the +Y direction. The elastic member 28 is also provided between the upper surface of the battery 17 and the panel substrate support portion 101b, as shown in FIG.

[0077] 14 and 16, the light-receiving portion substrate holding frame 103 has a base portion 103b forming a frame surface parallel to the XY plane, and a light-receiving portion substrate support portion 103a. The light-receiving portion substrate support portion 103a is located in the +Z direction from the base portion 103b. The light-receiving portion substrate support portion 103a supports the light-receiving portion substrate 80 from below, as shown in FIGS. 7 and 20. The light-receiving portion substrate 80 is fixed to the light-receiving portion substrate support portion 103a by screws (not shown). The light-receiving portion substrate holding frame 103 is an example of a first sub-frame that holds the light-receiving portion substrate 80. The light-receiving substrate 80 is in surface contact with the light-receiving substrate support portion 103 a, and thus heat from the light-receiving substrate 80 is transferred to the light-receiving substrate holding frame 103 .

[0078] The light receiving portion board holding frame 103 is supported from below by a light emitting portion board holding frame 104 as shown in FIG. Reference numerals 104a and 104b denote frame support portions which support the light-receiving board holding frame 103. The frame support portions 104a and 104b form frame surfaces parallel to the XY plane and are in surface contact with the bottom surface of the light-receiving board holding frame 103. This allows heat from the light-receiving board holding frame 103 to be transferred to the light-emitting board holding frame 104. Since the light-emitting board holding frame 104 is in contact with the main frame 101, the heat from the light-receiving board holding frame 103 is transferred to the main frame 101 via the light-emitting board holding frame 104. In other words, it can be said that the light-receiving board holding frame 103 is in indirect contact with the main frame 101.

[0079] [Other configurations of color measurement device] Hereinafter, the remaining configuration of the color measuring device 1, excluding the shutter unit 110, will be described. 23, the outline of the battery 17 when viewed from the Z-axis direction is indicated by a two-dot chain line, and the optical filter device 3, the PD board 5, the wireless communication unit 13, the battery control board 70, and the light receiving board 80 are indicated by dashed lines. In this embodiment, the outline of the battery control board 70 and the outline of the light receiving board 80 match when viewed from the Z-axis direction except for the -Y direction end, and at the -Y direction end, the outline of the light receiving board 80 is located slightly further in the +Y direction than the outline of the battery control board 70. As described above, the optical filter device 3 and the PD substrate 5 constitute the incident light processing section 2 that processes incident light. As shown in Fig. 23, the incident light processing section 2 and the battery 17 overlap each other when viewed from the Z-axis direction.

[0080] More specifically, in this embodiment, the incident light processing section 2 is contained within the area of ​​the battery 17 when viewed from the Z-axis direction. Note that the bandpass filter 7 (see Figs. 20 and 21) constituting the incident light processing section 2 is omitted in Fig. 23, but as is clear from Figs. 20 and 21, it is contained within the area of ​​the PD substrate 5 when viewed from the Z-axis direction.

[0081] As such, when viewed from the Z-axis direction, there is an overlapping portion between the incident light processing section 2 and the battery 17. Therefore, compared to a configuration in which the incident light processing section 2 and the battery 17 are arranged in a direction intersecting the Z-axis direction, i.e., horizontally, the device dimensions in the X-axis and Y-axis directions, which intersect the Z-axis direction, i.e., the horizontal device dimensions, can be reduced. Furthermore, in this embodiment, the incident light processing section 2, that is, the optical filter device 3 and the PD substrate 5, are contained within the area of ​​the battery 17 when viewed from the Z-axis direction, so that the horizontal device dimensions can be further reduced.

[0082] Moreover, Fig. 24 shows the outline of the battery holding part 100a (see Figs. 7 and 14) that holds the battery 17, instead of the outline of the battery 17 shown in Fig. 23. That is, similarly from the viewpoint of the battery holding part 100a, the incident light processing part 2 and the battery holding part 100a have an overlapping portion when viewed from the Z-axis direction, so that the horizontal device dimension can be reduced compared to a configuration in which the incident light processing part 2 and the battery holding part 100a are arranged in a direction intersecting the Z-axis direction, that is, in the horizontal direction.

[0083] In this embodiment, the optical filter device 3 and the PD substrate 5, i.e., the incident light processing section 2, are contained within the area of ​​the battery 17 or the battery holding section 100a when viewed from the Z-axis direction, but a part of the incident light processing section 2 may be outside the area of ​​the battery 17 or the battery holding section 100a.

[0084] In this embodiment, the battery 17 is contained within the area of ​​the light-receiving substrate 80 in the X-axis direction when viewed from the Z-axis direction, as shown in Fig. 23. The +Y end of the battery 17 is located inside the +Y end of the light-receiving substrate 80, and the -Y end of the battery 17 slightly protrudes beyond the -Y end of the light-receiving substrate 80. However, the battery 17 may be configured to be completely contained within the area of ​​the light-receiving substrate 80 when viewed from the Z-axis direction. By configuring it in this way, the horizontal device dimensions can be further reduced.

[0085] In this embodiment, as shown in FIG. 23, the display unit 15 and the light receiving substrate 80 have an overlapping portion when viewed from the Z-axis direction.

[0086] The color measuring device 1 also includes a light receiving unit board 80 having an incident light processing unit 2, a panel board 65 to which an LCD 67 is connected, a battery control board 70 to which a battery 17 is connected, and a light emitting unit board 85 having a light emitting unit 9 that emits light for measurement. 8, the light emitting substrate 85, the light receiving substrate 80, and the panel substrate 65 are arranged so as to overlap each other in the Z-axis direction from the bottom surface 50f to the top surface 50e of the device body 50. In addition, the battery control board 70, the battery 17, and the panel board 65 are arranged so as to overlap in the Z-axis direction from the bottom surface 50f to the top surface 50e of the device body 50 in that order. In this embodiment, the light-emitting unit board 85, the light-receiving unit board 80, the battery control board 70, the battery 17, and the panel board 65 are arranged so as to overlap in the Z-axis direction from the bottom surface 50f to the top surface 50e of the device body 50. With this configuration, it is possible to reduce the dimensions of the device in the X-axis direction and the Y-axis direction that intersect with the Z-axis direction, that is, in the horizontal direction. Incidentally, the battery control board 70 may not be provided, and the electronic components mounted on the battery control board 70 may be disposed on the panel board 65 or the light receiving board 80 as appropriate. In addition, the configuration that is arranged to overlap along the Z-axis direction may be a combination of any two or three or more of the light-emitting unit board 85, the light-receiving unit board 80, the battery control board 70, the battery 17, and the panel board 65.

[0087] 20, a first end 17a which is the end of battery 17 in the +Y direction faces a front inner wall surface 51e of main housing 51. A second end 17b which is the end of battery 17 in the -Y direction faces a rear inner wall surface 51f of main housing 51. In other words, both ends of battery 17 in the Y direction face the inner side walls of main housing 51 in the Y direction. This provides better weight balance in the Y-axis direction of the device body 50 than a configuration in which the battery 17 is positioned offset in the Y-axis direction, improving the handleability of the device. In this embodiment, the battery 17 is located at the center of the device in the X-axis direction as well, as shown in Figs. 21 and 22, so that the weight balance of the device body 50 in the X-axis direction is excellent.

[0088] 3, 4, 21, and 22, recesses 51g constituting grip portions 50g are formed in the main housing 51 on the right side surface 50b and the left side surface 50c of the device body 50, allowing the user to easily and securely grip the device body 50. Here, the range indicated by the arrow Za in Figures 22 and 25 is the range in which the recesses 51g are formed in the Z-axis direction, and as shown in Figure 25, the recesses 51g and the battery 17 have an overlapping portion when viewed from the X-axis direction. This brings the battery 17, which is a heavy object, closer to the gripping position, improving the handling of the device.

[0089] 22, the right wall 51b and the left wall 51c of the main housing 51 are located at the same position as a part of the LCD 67 in the X-axis direction as the portion from the recess 51g to the bottom surface 50f, i.e., in the -Z direction. The portions of the right wall 51b and the left wall 51c in the -Z direction from the recess 51g are portions in the -Z direction from the position indicated by reference symbol Z4. As a result, the portions of the right wall 51b and the left wall 51c in the -Z direction from the recess 51g have portions that overlap with the LCD 67 when viewed in the Z-axis direction as shown in FIG. 26. As a result, the device portion in the -Z direction from the recess 51g can be made smaller in the X-axis direction as shown in FIG. 22.

[0090] 23, the color measurement device 1 has a portion where the opening 21a and the operation unit 14 overlap when viewed from the Z-axis direction. This allows the user to align the opening 21a with the measurement portion of the measurement target 200 (see FIG. 1) based on the position of the operation unit 14, i.e., the opening 21a can be aligned with the measurement portion with a simple configuration. In particular, the color measuring device 1 is configured as a handheld type, and when the user operates the operation unit 14 with his / her fingertip Fs as shown in FIG. 27, the position of the fingertip Fa and the position of the opening 21a become close to each other, making it easy for the user to intuitively determine the position of the opening 21a.

[0091] In particular, in this embodiment, the center position of the opening 21a coincides with the center position of the enter button 54 when viewed from the Z-axis direction. This allows the opening 21a to be more accurately aligned with the measurement site.

[0092] 5, the decision button 54 has a circular shape when viewed from the Z-axis direction, and a cross button 60 for selecting various items is arranged around the decision button 54. The cross button 60 has marking lines that radiate outward from the center of the decision button 54. The marking lines are made up of vertical lines 58a, 58b and horizontal lines 58c, 58d. This makes it easier to grasp the center position of the opening 21a when looking at the top surface 50e of the device.

[0093] The operation unit 14 is also configured with a power button 55 and all buttons related to measurement on the top surface 50e. This makes it possible to easily see the power button 55 and all buttons related to measurement, and to easily operate the device. In addition, the top surface 50e including the operation unit 14 is formed flat, so that the device can be stably placed even when placed with the top surface 50e facing down.

[0094] As shown in Fig. 28, there is a portion where the panel substrate 65 and the battery 17 overlap when viewed from the Z-axis direction. Fig. 28 shows the outline of the panel substrate 65 instead of the outlines of the battery control substrate 70 and the light receiving portion substrate 80 shown in Fig. 23. By having a portion where the panel substrate 65 and the battery 17 overlap when viewed from the Z-axis direction, the horizontal device dimension can be reduced compared to a configuration in which the panel substrate 65 and the battery 17 are arranged in the X-axis or Y-axis direction, i.e., horizontally. When viewed from the Z-axis direction, the battery 17 may be configured to fit within the area of ​​the panel substrate 65. By configuring it in this way, the horizontal device dimensions can be further reduced. In this embodiment, the wireless communication unit 13 is contained within the area of ​​the battery 17 when viewed from the Z-axis direction. However, a part of the wireless communication unit 13 may be within the area of ​​the battery 17, or the entire wireless communication unit 13 may be outside the area of ​​the battery 17.

[0095] Moreover, Fig. 29 shows the outline of the battery holding portion 100a (see Figs. 7 and 14) that holds the battery 17, instead of the outline of the battery 17 shown in Fig. 28. That is, similarly from the viewpoint of the battery holding portion 100a, there is a portion where the panel substrate 65 and the battery holding portion 100a overlap when viewed from the Z-axis direction, so that the horizontal device dimension can be reduced compared to a configuration in which the panel substrate 65 and the battery holding portion 100a are arranged in a direction intersecting the Z-axis direction, i.e., in the horizontal direction.

[0096] 7, the wireless communication unit 13 is provided on the lower surface of the panel substrate 65, and is disposed inside the battery holding portion 100a when the panel substrate 65 is supported by the panel substrate supporting portion 101b. By disposing the wireless communication unit 13 using the inside of the battery holding portion 100a in this manner, it is possible to reduce the size of the device. Here, there is a concern that heat dissipation from the battery holding part 100a may adversely affect the wireless communication unit 13, but a cutout part 100b is formed in the battery holding part 100a (see also FIG. 14), and the wireless communication unit 13 is disposed at a position facing the cutout part 100b. That is, when the battery holding part 100a is viewed from the -X direction, the wireless communication unit 13 is exposed through the cutout part 100b. This makes it possible to prevent the heat dissipation from the battery holding part 100a from adversely affecting the wireless communication unit 13.

[0097] Next, in this embodiment, the battery 17 is provided between the operation unit 14 and the incident light processing unit 2 in the Z-axis direction as shown in FIG. 20. As described above, in this embodiment, the incident light processing unit 2 includes the optical filter device 3 and the PD board 5. In FIG. 20, the position indicated by the symbol Z1 is the most +Z position of the PD board 5 located the most +Z direction in the incident light processing unit 2. In addition, the position indicated by the symbol Z3 is the most -Z position of the parts constituting the operation unit 14, specifically, the Z direction positions of each contact (symbols 54a, 61a, 62a in FIG. 20). In addition, the position indicated by the symbol Z2 is an intermediate position between the positions Z1 and Z3. Here, the battery 17 includes an internal thermistor 18. The thermistor 18 is an example of a temperature detection unit, and when the internal temperature of the battery 17 acquired by the thermistor 18 exceeds a predetermined allowable temperature, the MCU 10 (see FIG. 1) cuts off the power supply from the battery 17 to each component.

[0098] The thermistor 18 is located in the +Z direction from the position Z2 in the Z-axis direction, that is, in a position closer to the operation unit 14 than the incident light processing unit 2 is. Here, in this embodiment, the incident light processing section 2 is one of the components of the color measuring device 1 where a portion of the supplied power is converted into heat, and the heat generated by the conversion adversely affects temperature detection by the thermistor 18. In the incident light processing section 2, heat generation is particularly noticeable in the PD board 5. However, since the thermistor 18 is disposed at a position closer to the operation section 14 than the incident light processing section 2, it is possible to suppress the adverse effect of the heat generated in the incident light processing section 2 on the thermistor 18, and it is possible to more appropriately detect the temperature of the battery 17.

[0099] As described above, the frame assembly 100 includes the battery holding portion 100a that is shaped to surround the battery 17 (see FIG. 7), so that heat generated from the battery 17 is efficiently dissipated by the battery holding portion 100a.

[0100] The thermistor 18 and the incident light processing section 2 are provided at one end of the main assembly 1a (see FIG. 7) in the Y-axis direction, i.e., at a position closer to the end in the +Y direction. A position closer to the end in the +Y direction means that the position is closer to the +Y direction than the middle position of the main assembly 1a in the Y-axis direction. The main assembly 1a is provided with a wired IF 12, which is a connection section for wired communication with an external device, at one end of the main assembly 1a in the Y-axis direction, i.e., at a position closer to the end in the +Y direction. The wired IF 12 is located between the thermistor 18 and the incident light processing section 2 in the Z-axis direction. Here, since the wired IF 12 is provided inside the opening (see FIG. 3), heat dissipation from inside the device to the outside is promoted around the wired IF 12. And, since the wired IF 12 is located between the thermistor 18 and the incident light processing section 2 in the Z-axis direction as shown in FIG. 20, the heat generated in the incident light processing section 2 is dissipated from the wired IF 12 to the outside of the device before it reaches the thermistor 18. This makes it possible to suppress the adverse effect of the heat generated in the incident light processing section 2 on the thermistor 18.

[0101] 20, the display unit 15 and the operation unit 14 are arranged along the Y-axis direction, and the thermistor 18 is arranged within the area of ​​the operation unit 14 in the Y-axis direction. That is, the LCD 67 constituting the display unit 15 is more likely to generate heat than the operation unit 14, but in the configuration in which the display unit 15 and the operation unit 14 are arranged along the Y-axis direction as described above, the thermistor 18 is arranged within the area of ​​the operation unit 14 in the Y-axis direction, so that the adverse effects of heat generated by the LCD 67 on the thermistor 18 can be suppressed.

[0102] 7, 14, and 15, the color measurement device 1 includes a light receiving board 80 and a light emitting board 85, and also includes a frame assembly 100 formed of a metal material. The frame assembly 100 includes a main frame 101 forming the base of the device, a light receiving board holding frame 103 that holds the light receiving board 80, and a light emitting board holding frame 104 that holds the light emitting board 85. The light receiving board holding frame 103 and the light emitting board holding frame 104 come into direct or indirect contact with the main frame 101.

[0103] More specifically, in this embodiment, each frame constituting the frame assembly 100 is made of aluminum as described above. The light-emitting portion board holding frame 104 is in direct contact with the main frame 101 as described above, and the light-receiving portion board holding frame 103 is in indirect contact with the main frame 101 via the light-emitting portion board holding frame 104. With this configuration, heat generated in the light receiving substrate 80 and the light emitting substrate 85 is transmitted to the entire frame assembly 100, preventing localized temperature increases inside the device and preventing adverse effects on color measurement results, etc.

[0104] In this embodiment, the light receiving board holding frame 103 is in indirect contact with the main frame 101, but may be in direct contact with the main frame 101. In this embodiment, the light emitting board holding frame 104 is in direct contact with the main frame 101, but may be in indirect contact with the main frame 101. Furthermore, when the light receiving unit board holding frame 103 or the light emitting unit board holding frame 104 is in indirect contact with the main frame 101 via another member, it is preferable that the other member is a member having excellent thermal conductivity, such as a metal material.

[0105] Furthermore, as shown in FIG. 18, the main frame 101 has a frame surface extending in the Y-axis direction and the Z-axis direction, in other words, a main plate portion 101a that forms a wide frame surface in the YZ plane, thereby increasing the surface area of ​​the main frame 101 and improving heat dissipation efficiency.

[0106] In addition, since the frame assembly 100 has a battery holding portion 100a that is shaped to surround the battery 17 as described above with reference to Figure 7, heat generated from the battery 17 is transmitted to the battery holding portion 100a and is efficiently dissipated via the main frame 101 and the battery holding frame 102.

[0107] The battery holding part 100a has a battery support part 102a as a first wall part that supports the battery 17 from below, and a panel board support part 101b as a second wall part that faces the battery support part 102a and forms a wall part on the upper surface side of the battery holding part 100a. The battery holding part 100a also has a sub-plate part 101c as a third wall part that is positioned on either side of the battery 17 in the X-axis direction, and a second frame part 102c as a fourth wall part. With this configuration, heat generated from the battery 17 is efficiently dissipated.

[0108] In addition, in this embodiment, the panel board 65 and the battery control board 70 are in direct contact with the main frame 101, so that heat generated from the panel board 65 and the battery control board 70 is transferred to the main frame 101 and dissipated effectively. The panel board 65 and the battery control board 70 may be configured to be in indirect contact with the main frame 101 via another member. Here, the other member is preferably a member having excellent thermal conductivity, such as a metal material.

[0109] [Shutter unit configuration] Next, a description will be given of the shutter unit 110 provided at the bottom of the device body 50. As shown in Figures 30 to 34, the shutter unit 110 is a unit body including a shutter holding member 111, a shutter member 112, and a link member 113. In this embodiment, the shutter holding member 111, the shutter member 112, and the link member 113 are made of a resin material.

[0110] The link member 113 is connected to the shutter holding member 111 via a connecting shaft 114 having a central axis parallel to the X-axis direction so as to be rotatable relative to the shutter holding member 111. A first guide shaft 121 and a second guide shaft 122 are provided on the side surfaces of the shutter holding member 111 facing the +X direction and the -X direction. In addition, a third guide shaft 123 is provided on the side surfaces of the link member 113 facing the +X direction and the -X direction.

[0111] At the +X-direction end and the -X-direction end of the opening forming member 21, a first lower guide portion 21c, a second lower guide portion 21d, and a third lower guide portion 21e are formed along the Y-axis direction as shown in Figures 32, 33, and 35. Of these, the first lower guide portion 21c and the second lower guide portion 21d have a shape in which the -Y-direction end portion curves in the +Z direction toward the -Y direction. Moreover, the third lower guide portion 21e is formed in a shape that is slightly inclined toward the -Z direction toward the -Y direction.

[0112] First upper guide portions 53c are formed at the +X direction end and the -X direction end of bottom housing 53 so as to sandwich first guide shaft 121 between them and first lower guide portion 21c as shown in Fig. 35. Note that Fig. 35 shows first upper guide portion 53c located at the end in the +X direction. Similarly, second upper guide portion 53d is formed at the end in the +X direction and the end in the -X direction of bottom housing 53 so as to sandwich second guide shaft 122 between itself and second lower guide portion 21d. Note that Fig. 35 shows second upper guide portion 53d located at the end in the +X direction. Similarly, third upper guide portion 53e is formed at the end in the +X direction and the end in the -X direction of bottom housing 53 so as to sandwich third guide shaft 123 between itself and third lower guide portion 21e. Note that Fig. 35 shows third upper guide portion 53e located at the end in the +X direction.

[0113] In this manner, the first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 are sandwiched between the opening forming member 21 and the bottom housing 53 in the Z-axis direction, and are guided in the Y-axis direction by the opening forming member 21 and the bottom housing 53. Of these, the first guide shaft 121 and the second guide shaft 122 are provided on the shutter holding member 111, so the movement trajectory of the shutter holding member 111 is determined by the first lower guide portion 21c and the first upper guide portion 53c, and the second lower guide portion 21d and the second upper guide portion 53d. Furthermore, since the third guide shaft 123 is provided on the link member 113 , the movement trajectory of the link member 113 is determined by the third lower guide portion 21 e , the third upper guide portion 53 e , and the connecting shaft 114 in the shutter holding member 111 .

[0114] The movement limit of the shutter unit 110 in the +Y direction, i.e., the closed position, is determined by the first guide shaft 121 abutting against a movement restricting portion 53f formed on the bottom housing 53. The movement limit of the shutter unit 110 in the -Y direction, i.e., the open position, is determined by the first guide shaft 121 abutting against a movement restricting portion 21f formed on the opening forming member 21. In this embodiment, the second guide shaft 122 and the third guide shaft 123 do not determine the movement limit of the shutter unit 110 in the Y direction.

[0115] 31, 33, 34, 36, and 37, the surface in the -Z direction of the portion of the opening 21a formed in the opening forming member 21 is indicated by reference symbol 21g. Hereinafter, this surface will be referred to as the shutter facing surface 21g. The shutter facing surface 21g is a flat surface that has a circular ring shape in a plan view. The shutter opposing surface 21g is located slightly in the +Z direction from the bottom surface 50f as shown in Fig. 34, i.e., it does not protrude from the bottom surface 50f in the -Z direction. And, the shutter holding member 111 of the shutter unit 110 in the closed position protrudes from the bottom surface 50f in the -Z direction as shown in Fig. 34. Furthermore, in the shutter unit 110 in the closed position, the link member 113 does not protrude in the -Z direction beyond at least the shutter holding member 111, and most of the link member 113 does not protrude beyond the bottom surface 50f.

[0116] Since the movement trajectory of the shutter holding member 111 is determined by the first lower guide portion 21c and the first upper guide portion 53c, and the second lower guide portion 21d and the second upper guide portion 53d as shown in Fig. 35, when the shutter holding member 111 moves from the closed position to the open position, it displaces in the -Y direction as is clear from Fig. 35, and then moves significantly in the +Z direction in the latter half of the displacement. As a result, when the shutter unit 110 is in the open position, the shutter holding member 111 does not protrude in the -Z direction from the bottom surface 50f, as shown in Figs. 31 and 20.

[0117] Furthermore, when the shutter holding member 111 moves in the +Z direction, the link member 113 accordingly rotates relative to the shutter holding member 111 via the connecting shaft 114, as shown by the change from Figure 36 to Figure 37. And even when the shutter unit 110 is in the open position, the link member 113 does not protrude in the -Z direction beyond the shutter holding member 111, as shown in Figure 37. And when the shutter unit 110 is in the open position, the link member 113 does not entirely protrude in the -Z direction from the bottom surface 50f, as shown in Figure 20.

[0118] Next, bearings 105c are formed on the bottom frame 105 at intervals in the X-axis direction as shown in Fig. 15. A spring hook shaft 115 is journaled on the bearings 105c as shown in Figs. 32, 34, 36, and 37. One end of a torsion spring 117, which is an example of a spring member, is rotatably fixed to the spring hook shaft 115. The tip of one end of the torsion spring 117 is formed in a coil shape so that the spring hook shaft 115 can be passed through it. The other end of the torsion spring 117 is rotatably fixed to a third guide shaft 123 provided on the link member 113. The tip portion of the other end of the torsion spring 117 is formed into a coil shape so that it can be passed through the third guide shaft 123. As a result, torsion spring 117 can rotate in the YZ plane, in other words, its posture can be changed.

[0119] When the shutter unit 110 is in the closed position, the external force F that the torsion spring 117 applies to the third guide shaft 123, i.e., the shutter unit 110, includes a -Z direction component and a +Y direction component, as shown in Fig. 34. As a result, the torsion spring 117 presses the shutter unit 110 in the +Y direction as shown by the arrow Fy, that is, presses the shutter unit 110 toward the closed position, thereby holding the shutter unit 110 in the closed position.

[0120] Figure 36 shows a state in which the shutter unit 110 has moved a predetermined amount in the -Y direction from the closed position. The +Y direction component of the pressing force F with which the torsion spring 117 presses the shutter unit 110 decreases as the shutter unit 110 moves from the closed position to a neutral position (described later), and eventually the force component in the Y axis direction becomes zero, leaving only a -Z direction component. At this time, the torsion spring 117 is in a state in which it is not pressing the shutter unit 110 in either the +Y direction or the -Y direction. Hereinafter, the position of the shutter unit 110 in this state will be referred to as the neutral position. Of course, when the shutter unit 110 is displaced from the open position to the neutral position, the Y-axis direction component of the pressing force F similarly decreases and eventually becomes zero.

[0121] When the shutter unit 110 is displaced in the -Y direction from the neutral position, i.e., toward the open position, the pressing force F with which the torsion spring 117 presses the shutter unit 110 includes a -Y direction component, and this -Y direction component increases as the shutter unit 110 is displaced toward the open position. As a result, as shown in Figure 37, when the shutter unit 110 is in the open position, the pressing force F with which the torsion spring 117 presses the shutter unit 110 includes a pressing force Fy with a -Y direction component, and the shutter unit 110 is held in the open position.

[0122] Next, a shutter member 112 is provided on the +Z direction side of the shutter holding member 111. A cylindrical portion 112e is formed on the -Z direction side of the shutter member 112, as shown in Figures 34, 36, 37, and 39. A recess 111c that receives the cylindrical portion 112e is formed in the shutter holding member 111 (see also Figure 40).

[0123] In addition, a white plate 125 that serves as a reflection reference surface is provided on the +Z direction side of the shutter member 112 as shown in Fig. 43. The white plate 125 exhibits white color so that the reflectance is close to 100% in order to obtain a reflection reference value. The white plate 125 is located in the central region in the planar direction of the shutter member 112, that is, in the XY plane. Here, the white plate 125 being located in the central region in the planar direction of the shutter member 112 means that the range of the white plate 125 includes the central position of the shutter member 112 in the planar direction. The central position of the shutter member 112 in the planar direction is the central position of the shutter member 112 in the Y-axis and X-axis directions, and in this embodiment, roughly coincides with the optical axis CL or is at least in the vicinity of the optical axis CL.

[0124] The shutter member 112 is provided so as to be displaceable relative to the shutter holding member 111 in the Z-axis direction, that is, in the direction approaching and moving away from the opening 21a. 38 and 39, protrusions 112d are provided at intervals in the Y-axis direction on the +X and -X side faces of the shutter member 112. Meanwhile, openings 111b for receiving the protrusions 112d are provided at intervals in the Y-axis direction on the +X and -X side faces of the shutter holding member 111.

[0125] The size of the opening 111b in the Z-axis direction is larger than the size of the protruding portion 112d in the Z-axis direction, so that the protruding portion 112d is movable in the Z-axis direction while inserted into the opening 111b. This allows the shutter member 112 to be held by the shutter holding member 111 so as to be movable in the Z-axis direction.

[0126] 40, the shutter holding member 111 is provided with a leaf spring 118 as a pressing member that presses the shutter member 112 in the +Z direction, i.e., toward the opening 21a. The leaf spring 118 has a plurality of pressing portions that press the shutter member 112, and more specifically, has three pressing portions 118a. The multiple pressing portions 118a are arranged at approximately equal intervals at positions along the periphery of the opening 21a.

[0127] When the shutter unit 110 is in the closed position, as shown in Fig. 34, the contact surface 112a of the shutter member 112 that faces the shutter opposing surface 21g is brought into close contact with the shutter opposing surface 21g by the pressing force of the leaf spring 118. The contact surface 112a has an annular shape that fits around the periphery of the opening 21a, that is, along the shutter opposing surface 21g (see Fig. 43). The contact surface 112a presses against the shutter opposing surface 21g, thereby closing the opening 21a and preventing dust and other particles from entering the inside of the device through the opening 21a.

[0128] Next, as shown in Figures 31, 33, 41 and 42, first protruding ribs 21b are formed along the Y-axis direction on both sides in the X-axis direction of the shutter opposing surface 21g. The first protruding ribs 21b are ribs that protrude from the opening forming member 21 in the -Z direction. 43, second protruding ribs 112b are formed on both sides of the contact surface 112a in the X-axis direction along the Y-axis direction. The second protruding ribs 112b are ribs that protrude from the shutter member 112 toward the opening forming member 21.

[0129] The second protruding rib 112b is formed in a position where it can abut against the first protruding rib 21b, and when the shutter unit 110 is in the closed position as shown in Figure 41, the second protruding rib 112b is located in the +Y direction relative to the first protruding rib 21b and does not abut against the first protruding rib 21b. An inclined surface 112c facing the -Z direction is formed on the -Y direction end of the second protruding rib 112b. An inclined surface 21h facing the +Z direction is formed on the +Y direction end of the first protruding rib 21b. When the shutter unit 110 is in the closed position, the inclined surface 112c and the inclined surface 21h face each other.

[0130] When the shutter unit 110 is displaced from this state toward the open position, the second protruding rib 112b comes into contact with the first protruding rib 21b, and the second protruding rib 112b overlaps with the first protruding rib 21b in the Z-axis direction as shown in the change from Fig. 41 to Fig. 42. This causes the shutter member 112 to move in the -Z direction against the pressing force of the leaf spring 118, and a gap is formed between the shutter opposing surface 21g and the contact surface 112a as shown in Fig. 36. In this manner, the first protruding rib 21b and the second protruding rib 112b constitute a moving means 119 that moves the shutter member 112 in a direction away from the opening forming member 21 when the shutter unit 110 in the closed position is displaced toward the open position. As a result, wear on the shutter facing surface 21g can be minimized.

[0131] 43 to 45, a window portion 112f is formed in the shutter member 112, and a magnet 127 is provided so as to be exposed through this window portion 112f. The magnet 127 is fixed to the shutter holding member 111 by an adhesive or double-sided tape. A magnetic sensor 128 is provided on the lower surface of the light emitting substrate 85 .

[0132] When the shutter unit 110 is in the open position, the magnet 127 is positioned so as to overlap with the magnetic sensor 128 in the Y-axis direction as shown in Fig. 44. In this state, the linear distance between the magnet 127 and the magnetic sensor 128 is the shortest. On the other hand, when the shutter unit 110 is in the closed position, the linear distance between the magnet 127 and the magnetic sensor 128 is longer than when the shutter unit 110 is in the open position, as shown in Fig. 45. This state is the state in which the linear distance between the magnet 127 and the magnetic sensor 128 is the longest. With this configuration, the magnetic sensor 128 can be disposed at a position away from the opening 21a, and an increase in size of the device caused by disposing the magnetic sensor 128 close to the opening 21a can be suppressed.

[0133] The magnetic sensor 128 is a magnetic sensor that changes a detection signal according to the strength of magnetism, and sends a high detection signal to the MCU 10 (see FIG. 1) when the shutter unit 110 is in the open position. On the other hand, the magnetic sensor 128 sends a low detection signal to the MCU 10 (see FIG. 1) when the shutter unit 110 is in the closed position. In other words, the magnetic sensor 128 is a detection means that changes the detection signal according to the displacement of the shutter unit 110. This allows the MCU 10 to detect whether the shutter unit 110 is in the closed position or the open position.

[0134] As described above, the shutter unit 110 is configured to include a shutter member 112 that blocks the opening 21a when in the closed position, a shutter holding member 111 that holds the shutter member 112 so that the shutter member 112 can be displaced toward and away from the opening 21a, and a leaf spring 118, which is an example of a pressing member that presses the shutter member 112 toward the opening 21a. As a result, even if there are manufacturing errors or assembly errors in parts, or wear and tear due to use, the shutter member 112 is pressed toward the opening 21a, and it is possible to prevent a gap from being generated between the shutter member 112 and the opening 21a. As a result, it is possible to effectively prevent dust and the like from entering the opening 21a.

[0135] Furthermore, the leaf spring 118 presses the shutter member 112 at multiple pressing portions 118a, i.e., multiple positions along the periphery of the opening 21a, thereby preventing the shutter member 112 from being pressed unevenly against a specific position of the opening 21a, and enabling the shutter member 112 to effectively close the opening 21a.

[0136] Further, when the shutter unit 110 in the closed position is displaced toward the open position, a moving means 119 is provided for moving the shutter member 112 in a direction in which the shutter member 112 moves away from the opening forming member 21. This suppresses wear between the shutter facing surface 21g, which is a portion of the opening forming member 21 that forms the opening 21a, and the contact surface 112a, which is a portion of the shutter member 112 that closes the opening 21a. As a result, a gap is generated between the opening 21a and the shutter member 112, and the risk of dust or the like entering the gap can be suppressed.

[0137] The moving means 119 is configured to include a first protruding rib 21b formed on the opening forming member 21 and protruding toward the shutter member 112, and a second protruding rib 112b formed on the shutter member 112 and protruding toward the opening forming member 21. When the shutter unit 110 is in the closed position, the first protruding rib 21b is not in contact with the second protruding rib 112b, and when the shutter unit 110 in the closed position is displaced toward the open position, the second protruding rib 112b rides up onto the first protruding rib 21b, so that the shutter member 112 moves in a direction away from the opening forming member 21. With such a configuration, the moving means 119 can be configured at low cost.

[0138] The shutter unit 110 is also provided with a link member 113 that is located closer to the open position than the shutter holding member 111 and is connected to be rotatable relative to the shutter holding member 111. The shutter holding member 111 protrudes from the bottom surface 50f when the shutter unit 110 is in the closed position, and does not protrude from the bottom surface 50f when the shutter unit 110 is in the open position. The link member 113 rotates relative to the shutter holding member 111, thereby maintaining a state in which it does not protrude from the bottom surface 50f further than the shutter holding member 111 regardless of the position of the shutter unit 110. This allows the device to be made more compact, particularly when the shutter unit 110 is in the closed position, compared to a configuration in which the shutter holding member 111 and the link member 113 are integrated.

[0139] Also, a torsion spring 117 is provided to press the link member 113 toward the open position and the closed position, and the torsion spring 117 changes its position in accordance with the displacement of the shutter unit 110. As a result, when the shutter unit 110 is closer to the closed position than the neutral position, the torsion spring 117 presses the link member 113 toward the closed position (see FIG. 34). Also, when the shutter unit 110 is closer to the open position than the neutral position, the torsion spring 117 presses the link member 113 toward the open position (see FIGS. 36 and 37). With such a configuration, a means for maintaining the shutter unit 110 at the closed position and the open position can be configured at low cost.

[0140] 46 shows the positions of the shutter unit 110, with position Ya1 indicating the closed position of the shutter unit 110, position Ya2 indicating the open position, and position Yac indicating the neutral position. Reference character A1 indicates the range of movement of the shutter unit 110 between the closed position Ya1 and the neutral position Yac, and reference character A2 indicates the range of movement of the shutter unit 110 between the open position Ya2 and the neutral position Yac.

[0141] 35, friction between the first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 and the opening forming member 21 and the bottom housing 53 may cause the shutter unit 110 to maintain a stopped state without moving even if the shutter unit 110 is slightly closer to the closed position Ya1 than the neutral position Yac. Similarly, even if the shutter unit 110 is slightly closer to the open position Ya2 than the neutral position Yac, the shutter unit 110 may maintain a stopped state without moving. 46 is a region in which the shutter unit 110 maintains the stopped state in this manner. Hereinafter, this will be referred to as the stop region K of the shutter unit 110.

[0142] Next, as described above, the white plate 125 that forms a reflection reference surface that serves as a reference for reflectance is provided at a position facing the opening 21a in the shutter member 112. Furthermore, since the shutter member 112 is configured to be pressed toward the opening 21a by the leaf spring 118, the position and orientation of the white plate 125 are less likely to vary, and an appropriate reference value can be obtained.

[0143] Incidentally, the shutter unit 110 and the configuration related thereto can be modified as shown in Figures 47 to 50. Incidentally, in Figures 47 to 50, the same components as those already explained are given the same reference numerals, and duplicated explanations will be avoided below. 47 and 48, the shutter unit 110A is configured to include a shutter holding member 111A, a link member 113A, and a second link member 130. The shutter holding member 111A and the link member 113A are connected via a connecting shaft 114 so as to be relatively rotatable. The link member 113A and the second link member 130 are connected via a second connecting shaft 131 so as to be relatively rotatable.

[0144] A rotation shaft 132 parallel to the X-axis direction is supported on the opening forming member 21A, and the second link member 130 is provided rotatably in the YZ plane around this rotation shaft 132. A torsion spring 133 is provided on the opening forming member 21A with a gap in the X-axis direction. One end of the torsion spring 133 is rotatably hooked on a part of the opening forming member 21A, and the other end of the torsion spring 133 is hooked on the second link member 130.

[0145] Figure 47 shows a state in which the shutter unit 110A is in the closed position, and Figure 48 shows a state in which the shutter unit 110A is in the open position. As shown by the change from Figure 47 to Figure 48, or the change from Figure 48 to Figure 47, as the shutter unit 110A is displaced, the shutter holding member 111A and the link member 113A rotate relatively, and the link member 113A and the second link member 130 rotate relatively. At this time, the position of torsion spring 133 changes in the same manner as torsion spring 117 (see FIG. 32) described above. As a result, when shutter unit 110A is between the closed position and the neutral position, torsion spring 133 presses shutter unit 110A toward the closed position. When shutter unit 110A is between the open position and the neutral position, torsion spring 133 presses shutter unit 110A toward the open position.

[0146] 49 and 50, the shutter unit 110B is configured to include a shutter holding member 111B and a link member 113B. The shutter holding member 111B and the link member 113B are connected via a first connecting portion 140 so as to be relatively rotatable. The link member 113B is formed with a second connecting portion 141 extending along the X-axis direction. A connecting member 142 is fitted into the second connecting portion 141 so as to be slidable in the X-axis direction.

[0147] A rotation shaft 144 is formed integrally with the opening forming member 21B, and an arm member 143 is provided on the rotation shaft 144 so as to be rotatable on the XY plane. The arm member 143 and the connecting member 142 are connected via a link shaft 143a having a central axis parallel to the Z-axis direction so as to be relatively rotatable. A torsion spring (not shown) that generates a spring force between the opening forming member 21B and the arm member 143 is provided in the +Z direction with respect to the arm member 143.

[0148] Fig. 49 shows a state in which the shutter unit 110B is in the closed position, and Fig. 50 shows a state in which the shutter unit 110B is in the open position. As shown by the change from Fig. 49 to Fig. 50, or from Fig. 50 to Fig. 49, the shutter holding member 111B and the link member 113B rotate relatively to each other as the shutter unit 110B is displaced. Furthermore, the arm member 143 rotates, and accordingly the arm member 143 and the connecting member 142 rotate relatively to each other. At this time, the connecting member 142 slides on the second connecting portion 141 along the X-axis direction.

[0149] As arm member 143 rotates, a torsion spring (not shown) located in the +Z direction with respect to arm member 143 changes its position. As a result, when shutter unit 110B is between the closed position and the neutral position, the torsion spring presses shutter unit 110B toward the closed position. When shutter unit 110B is between the open position and the neutral position, the torsion spring presses shutter unit 110B toward the open position. The shutter unit 110 and the related configuration can be modified as described above.

[0150] Next, as described above, the color measuring device 1 includes the magnetic sensor 128 that changes a detection signal in response to the displacement of the shutter unit 110. This makes it possible to grasp the position of the shutter unit 110 and perform appropriate control in response to the position of the shutter unit 110.

[0151] In addition, since the magnetic sensor 128 is a sensor that changes the detection signal depending on the strength of the magnetism, there is no need to provide a dedicated opening or the like to transmit the detection light as in the case of an optical sensor, and it is possible to avoid a decrease in the airtightness of the device due to the formation of an unnecessary opening. However, as a detection means for detecting the position of the shutter unit 110, other types of non-contact sensors such as an optical sensor, a capacitance type proximity sensor, an inductive type proximity sensor, or a contact type sensor can also be used.

[0152] Hereinafter, the control performed by the MCU 10 (see FIG. 1), which is a control unit that receives a detection signal from the magnetic sensor 128, will be described with reference to FIGS. In FIG. 51, when the power button 55 (see FIG. 5, etc.) is pressed while the power is on, i.e., when the MCU 10 receives a command to power off the device (Yes in step S101), if the shutter unit 110 is in the closed position (Yes in step S102), the MCU 10 proceeds to process the power off of the device (step S103). On the other hand, if the shutter unit 110 is in the open position (No in step S102), the transition to power off is put on hold. Then, in this embodiment, an alert that the shutter unit 110 is in the open position is displayed on the display unit 15 (see FIG. 5, etc.) (step S104).

[0153] This prevents the device from being powered off with the shutter unit 110 remaining in the open position, and prevents dust and other particles from entering the device through the opening 21a while the device is powered off. Also, usability is improved because an alert that the shutter unit 110 is in the open position is displayed on the display unit 15. The alert that the shutter unit 110 is in the open position can be, for example, a message display such as "The shutter is open. Please close it."

[0154] Next, in FIG. 52, when the MCU 10 determines that it is time to acquire a reference value using the white plate 125 (see FIG. 43, etc.) (Yes in step S201), it determines whether the shutter unit 110 is in the closed position (step S202). As a result, if the shutter unit 110 is in the closed position (Yes in step S202), it executes a reference value acquisition process (step S203). On the other hand, if the shutter unit 110 is in the open position (No in step S202), it postpones the acquisition of the reference value. In this case, in this embodiment, it causes the display unit 15 (see FIG. 5, etc.) to display an alert that the shutter unit 110 is in the open position (step S204). This makes it possible to appropriately acquire a reference value using the white plate 125. The timing for obtaining the reference value may be, for example, when the power button 55 (see FIG. 5, etc.) is pressed from a power-off state, i.e., when a command to turn on the power of the device is received, or when a predetermined time has elapsed with the power of the device on.

[0155] Next, in FIG. 53, when the decision button 54 (see FIG. 5, etc.) is pressed, i.e., when a command to perform color measurement is received (Yes in step S301), if the shutter unit 110 is in the open position (Yes in step S302), the MCU 10 executes color measurement processing (step S303). On the other hand, if the shutter unit 110 is in the closed position (No in step S302), the color measurement process is suspended. In this embodiment, an alert that the shutter unit 110 is in the closed position is displayed on the display unit 15 (see FIG. 5, etc.) (step S304). By such control, appropriate color measurement values ​​can be obtained. Furthermore, when a command to perform colorimetry is received (Yes in step S301), if the shutter unit 110 is in the open position (Yes in step S302), the colorimetry process is executed (step S303), and if the shutter unit 110 is in the open position (No in step S302), a reference value is obtained using the white plate 125, and then the process proceeds to step S304.

[0156] 46, in the displacement region (A1+A2) of the shutter unit 110, region B1 where the magnetic sensor 128 sends out a detection signal indicating that the shutter unit 110 is in the closed position is set with a margin M on the closed position Ya1 side from the neutral position Yac. Note that in FIG. 46, position Ybc indicates the switching position of the detection signal of the magnetic sensor 128, and in region B1, a detection signal is sent out indicating that the shutter unit 110 is in the closed position, and in region B2, a detection signal is sent out indicating that the shutter unit 110 is in the open position. Particularly in this embodiment, the area B1 is set further toward the closing position Ya1 side than the stop area K of the shutter unit 110 described above. As a result, when the magnetic sensor 128 sends out a detection signal indicating the closed position of the shutter unit 110, the shutter unit 110 is reliably in the closed position. This eliminates the risk of the shutter unit 110 being determined to be in the closed position when it is in an intermediate position, and further makes it possible to reliably obtain the reference value using the white plate 125.

[0157] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the invention described in the claims, and it goes without saying that these modifications are also included in the scope of the present invention. For example, in the above-described embodiment, the color measurement device 1 has a built-in battery 17, but the battery 17 may be configured to be removable, that is, the color measurement device 1 may not have a built-in battery 17. In that case, the battery 17 may be a primary battery that is not repeatedly charged and discharged.

[0158] In this embodiment, the incident light processing section 2 is configured to include an optical filter device 3 and a light receiving section 4, and the optical filter device 3 is a wavelength-tunable Fabry-Perot etalon that transmits a specific wavelength component of the incident light, but is not limited to this. For example, a spectroscopic method using a diffraction grating may be used. Also, the device may be configured to adopt a stimulus value direct reading method that directly measures three stimulus values ​​that are the basis of color as a color measurement principle. In addition, in this embodiment, an LED is used as the light emitting element used in the light emitting unit 9, but this is not limited thereto, and for example, a xenon lamp may also be used. [Explanation of symbols]

[0159] 1...color measuring device, 1a...main body assembly, 2...incident light processing section, 3...optical filter device, 4...light receiving section, 4a...photodiode, 5...PD board, 6...capacitance detection section, 7...bandpass filter, 9...light emitting section, 10...MCU, 11..., 12...wired IF, 13...wireless communication section, 14...operation section, 15...display section, 16...battery control section, 17...battery, 17a...first end, 17b...second end, 18...thermistor, 21...opening forming member, 21a...opening, 21b...first protruding rib, 21c... First lower guide portion, 21d...second lower guide portion, 21e...third lower guide portion, 21f...movement restriction portion, 21g...shutter facing surface, 21h...inclined surface, 28...elastic material, 29...shielding sheet, 30...first glass member, 31...second glass member, 32...case, 33...bonding member, 34...fixing member, 35...wire bonding, 36...electrode, 37...base substrate, 38...diaphragm substrate, 39...mirror, 40...fixed electrode, 41...movable electrode, 42...diaphragm portion, 43...bonding film, 45...tunable interference filter, 50... device body, 50a... front surface, 50b... right side surface, 50c... left side surface, 50d... rear surface, 50e... top surface, 50f... bottom surface, 50g... gripping portion, 50m... opening, 51... main housing, 51a... front wall portion, 51b... right wall portion, 51c... left wall portion, 51d... rear wall portion, 51e... front inner wall surface, 51f... rear inner wall surface, 51g... recess, 52... upper housing, 53... bottom housing, 53a... opening portion, 53c... first upper guide portion, 53d... second upper guide portion 3. upper guide portion, 53e...third upper guide portion, 53f...movement restriction portion, 54...decision button, 54a...contact, 55...power button, 55a...contact, 56...back button, 56a...contact, 57...display cover, 58a, 58b...vertical lines, 58c, 58d...horizontal lines, 60...cross button, 61...up button, 61a...contact, 62...down button, 62a...contact, 63...left button, 63a...contact, 64...right button, 64a...contact, 65...panel board, 66...LCD connection portion, 67...LCD, 67a...cable, 68...first board connection connector, 70...battery control board, 71...reset switch, 72...first battery connector, 73...second battery connector, 74...second board connection connector, 80...light receiving board, 81...light receiving module, 82...third board connector, 83...fourth board connector, 84...fifth board connector, 85...light emitting board, 86...light emitting element, 87...light collecting member, 87a...measurement window, 88...sixth board connector, 89...light blocking member, 90...FFC, 91...connection cable, 92...first battery cable, 93...second battery cable, 100... frame assembly, 100a... battery holding portion, 100b... notch portion, 101...main frame, 101a...main plate portion, 101b...panel board support portion, 101c...sub-plate portion, 101d...regulation portion, 101e...battery control board support portion, 101f...frame holding portion, 102...battery holding frame, 102a...battery support portion, 102b...first frame portion, 102c...second frame portion, 103...light receiving board holding frame, 103a...light receiving board support portion, 103b...base portion, 104...light emitting board holding frame, 104a, 104b...frame support portion, 105...bottom frame, 105a...first plate portion, 105b...second plate portion, 105c...bearing portion, 110...shutter unit, 111...shutter holding member, 111a...rib, 111b...opening, 111c...recess, 112...shutter member, 112a...contact surface, 112b...second protruding rib, 112c...inclined surface, 112d...protruding portion, 112e...cylindrical portion, 112f...window portion, Reference Signs List 113...link member, 114...connecting shaft, 115...spring hanging shaft, 117...torsion spring, 118...leaf spring, 118a...pressure portion, 119...moving means, 121...first guide shaft, 122...second guide shaft, 123...third guide shaft, 125...white plate, 127...magnet, 128...magnetic sensor, 130...second link member, 131...second connecting shaft, 132...rotating shaft, 133...torsion spring, 140...first connecting portion, 141...second connecting portion, 142...connecting member, 143...arm member, 143a...link shaft, 144...rotating shaft, 200...measurement object

Claims

1. an opening formed in an opening forming member disposed on the bottom surface of the device for introducing light arriving from the measurement object into the device; an incident light processing section that processes light incident through the opening; a shutter unit that is displaceable between a closed position that covers the opening and an open position that opens the opening, and that has a reflection reference surface that serves as a reference for reflectance in a position facing the opening; a detection means for changing an output detection signal in response to the displacement of the shutter unit; a control unit that receives a detection signal from the detection means; Equipped with When the control unit determines that it is time to acquire a reference value using the reflective reference surface, the control unit determines the position of the shutter unit based on the detection signal, and acquires the reference value if the shutter unit is in the closed position, and suspends acquisition of the reference value if the shutter unit is in the open position. A color measuring device characterized by:

2. 2. The color measurement device according to claim 1, The timing for acquiring the reference value is at least one of when a power-on command is received from a power-off state of the device and when a predetermined time has elapsed while the device is in a power-on state. A color measuring device characterized by:

3. an opening formed in an opening forming member disposed on the bottom surface of the device for introducing light arriving from the measurement object into the device; an incident light processing section that processes light incident through the opening; a shutter unit that is displaceable between a closed position that covers the opening and an open position that opens the opening, and that has a reflection reference surface that serves as a reference for reflectance in a position facing the opening; a detection means for changing an output detection signal in response to the displacement of the shutter unit; a control unit that receives a detection signal from the detection means; Equipped with When the control unit receives a command to perform colorimetry, the control unit determines the position of the shutter unit based on the detection signal, and performs colorimetry if the shutter unit is in the open position, and acquires a reference value using the reflective reference surface if the shutter unit is in the closed position. A color measuring device characterized by:

4. 4. The color measuring device according to claim 1, wherein the detecting means is configured with a magnetic sensor that changes a detection signal depending on the intensity of a magnetic field. A color measuring device characterized by:

5. 5. The color measurement device according to claim 1, further comprising: a spring member that presses the shutter unit toward the open position and the closed position; a link member that constitutes the shutter unit, the spring member changes its posture in accordance with the displacement of the shutter unit, so that when the shutter unit is located closer to the closing position than a neutral position between the closing position and the opening position, the spring member presses the link member toward the closing position; When the shutter unit is located closer to the open position than the neutral position, the spring member presses the link member toward the open position. A color measuring device characterized by:

6. 6. The color measurement device according to claim 5, the displacement region of the shutter unit includes a region that includes the neutral position, and includes a stop region in which the shutter unit stops without moving to the closed position even if the shutter unit is located closer to the closed position than the neutral position, and in which the shutter unit stops without moving to the open position even if the shutter unit is located closer to the open position than the neutral position, a region in the displacement region of the shutter unit, from which the detection means sends a detection signal indicating the closed position, is located closer to the closed position than the stop region; A color measuring device characterized by:

7. 7. The color measurement device according to claim 1, When the control unit receives a power-off command that is a command to turn off the power of the device, the control unit determines the position of the shutter unit based on the detection signal, and if the shutter unit is in the closed position, transitions to power-off of the device, and if the shutter unit is in the open position, suspends transition to power-off of the device. A color measuring device characterized by:

8. 8. The color measurement device according to claim 7, wherein when the control unit receives a power-off command for the device and the shutter unit is in the open position, the control unit causes a display unit that displays various types of information to display an alert that the shutter unit is in the open position. A color measuring device characterized by:

9. 9. The color measuring device according to claim 1, wherein the shutter unit includes a shutter member that includes the reflection reference surface and closes the opening when the shutter member is in the closed position; a shutter holding member that holds the shutter member so that the shutter member can be displaced in a direction in which the shutter member moves toward and away from the opening; a pressing member that presses the shutter member toward the opening, A color measuring device characterized by:

10. 10. The color measuring device according to claim 9, wherein the reflection reference surface is located in a central area in a planar direction of the shutter member. A color measuring device characterized by:

11. 5. The color measurement device according to claim 4, wherein the shutter unit includes a magnet that is detected by the magnetic sensor; a linear distance between the magnetic sensor and the magnet is relatively longer when the shutter unit is in the closed position than when the shutter unit is in the open position; A color measuring device characterized by:

12. 12. The color measuring device according to claim 1, wherein the incident light processing section comprises: a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light; a light receiving unit that receives light that has passed through the optical filter, A color measuring device characterized by:

13. 13. The color measuring device according to claim 12, wherein the optical filter is a Fabry-Perot etalon. A color measuring device characterized by:

Images