Colorimetric device

Abstract

To solve the problem in which: a configuration in which a mirror and a shutter mechanism are provided to align an opening with a measurement area causes a significant increase in cost of the device.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; and an operation unit that is located on a top face being a surface on the opposite side of the bottom face and receives various operations. When seen from a first direction being a direction intersecting with the bottom face and a top face being a surface on the opposite side of the bottom face, the opening and the operation unit have overlapping portions.SELECTED DRAWING: Figure 5

Description

[Technical Field]

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

[0002] Conventionally, colorimetric devices that measure color based on light reaching a measurement object have been known. For example, some colorimetric devices measure color by directing light reaching a measurement object through a spectral filter, extracting specific wavelength components using the spectral filter, receiving the light with a photodiode, and detecting the voltage output from the photodiode. In such colorimetric devices, an opening is provided on the bottom surface of the device body. Therefore, during measurement, the measurement area of ​​the measurement object is covered by the device body, making alignment of the opening and the measurement area problematic.

[0003] The optical measuring instrument disclosed in Patent Document 1 includes a light source, a mirror that further reflects the measurement light emitted from the light source and reflected by the measurement object, a condenser lens arranged along the optical path of the measurement light reflected by the mirror and condensing the measurement light reflected by the mirror, a light-receiving element that has a light-receiving surface on the rear focal plane of the condenser lens and outputs a light-receiving signal corresponding to the measurement light received by the light-receiving surface, and a finder arranged across the mirror from the measurement position. The mirror is arranged so that its tilt can be adjusted, and the measurement site on the measurement object can be confirmed through the finder via the mirror.

[0004] Furthermore, the optical property measuring device disclosed in Patent Document 2 is configured to include a measurement object observation section for directly observing the measurement object facing the measurement opening, and an observation light source for illuminating the measurement object facing the measurement opening, thereby enabling direct confirmation of the measurement site on the measurement object without using the mirror described in Patent Document 1. However, a shutter mechanism is provided to open and close the through-opening, which is the measurement object observation section, to prevent external light from entering through the measurement object observation section during measurement. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-344164 [Patent Document 2] International Publication No. 2017 / 195573 Summary of the Invention [Problem to be solved by the invention]

[0006] If a mirror as described in Patent Document 1 or a shutter mechanism as described in Patent Document 2 were provided to align the opening on the bottom of the device with the measurement site, this would result in a significant increase in the cost of the device, and there was a need for a simpler configuration that would make it easier to align the opening with the measurement site. [Means for solving the problem]

[0007] In order to solve the above problem, the colorimetric device of the present invention 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 device, an incident light processing unit for processing the light incident through said opening, and an operation unit located on the top surface opposite to said bottom surface for accepting various operations, characterized in that the opening and the operation unit have a portion overlapping when viewed from a first direction which is a direction intersecting with the bottom surface and the top surface opposite to the bottom surface. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a block diagram showing the functions of the color measurement device. [Figure 2] FIG. 1 is a cross-sectional view of an optical filter device. [Figure 3] FIG. 2 is a perspective view of the color measurement device as seen from above. [Figure 4] FIG. 2 is a perspective view of the color measurement device as seen from below. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 2 is a perspective view showing the arrangement of the circuit boards and the battery from above. [Figure 9] FIG. 2 is a perspective view showing the arrangement of the circuit boards 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. 2 is a perspective view of the frame assembly seen from above. [Figure 15] FIG. 2 is a perspective view of the frame assembly seen from below. [Figure 16] FIG. 2 is a perspective view of the frame assembly seen from above. [Figure 17] FIG. [Figure 18] FIG. [Figure 19] FIG. 1 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] AA cross section in FIG. 5. [Figure 21] BB cross section in FIG. 5. [Figure 22] Cross section taken along CC in Figure 5. [Figure 23] FIG. [Figure 24] FIG. [Figure 25] FIG. [Figure 26] FIG. [Figure 27] FIG. [Figure 28] FIG. [Figure 29] FIG. [Figure 30] FIG. 4 is a perspective view of the color measurement device as seen from below, with the shutter unit in a closed position. [Figure 31] FIG. 2 is a perspective view of the color measurement device as seen from below, with the shutter unit in an open position. [Figure 32] FIG. 10 is a perspective view of the color measurement device from which the bottom housing has been removed, viewed from below, with the shutter unit in a closed position. [Figure 33] FIG. 10 is a perspective view of the color measurement device from below with the bottom housing removed, showing the shutter unit in an open position. [Figure 34] FIG. 7 is a view corresponding to a part of the cross section DD in FIG. 6, showing the shutter unit in the closed position. [Figure 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. [Figure 36] FIG. 7 is a view corresponding to a part of the cross section DD in FIG. 6, omitting the bottom housing and 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, omitting the bottom housing and showing the shutter unit in an open position. [Figure 38] FIG. [Figure 39] FIG. [Figure 40] FIG. [Figure 41] FIG. 7 is a view corresponding to a part of the E-E cross section in FIG. 6, showing the shutter unit in the closed position. [Figure 42] 7 is a view corresponding to a part of the EE cross section in FIG. 6, showing a state in which the shutter unit is in the −Y direction from the closed position. [Figure 43]FIG. [Figure 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. [Figure 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 the operating area of ​​the shutter unit and the detection area of ​​the shutter detection unit. [Figure 47] FIG. 10 is a diagram showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. [Figure 48] FIG. 10 is a diagram showing another embodiment of the shutter unit, with the shutter unit in an open position. [Figure 49] FIG. 10 is a diagram showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. [Figure 50] FIG. 10 is a diagram showing another embodiment of the shutter unit, with the shutter unit in an open position. [Figure 51] 10 is a flowchart showing the processing contents of the control unit when a power-off command is received. [Figure 52] 10 is a flowchart showing the processing content of the control unit when obtaining a reference value. [Figure 53] 10 is a flowchart showing the processing content of a control unit when performing color measurement. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will be briefly described below. The color measuring device of the first aspect 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 device, an incident light processing unit for processing the light incident through the opening, and an operation unit located on the top surface opposite the bottom surface for accepting various operations, characterized in that the opening and the operation unit have an overlapping portion when viewed from a first direction which is a direction intersecting the bottom surface and the top surface opposite the bottom surface.

[0010] According to this aspect, the color measuring device has a portion where the opening and the operating unit overlap when viewed from a first direction, which is a direction intersecting the bottom surface and the top surface, which is the surface opposite the bottom surface.Therefore, when a user aligns the opening with the measurement site, the alignment can be performed based on the position of the operating unit, i.e., the opening can be aligned with the measurement site with a simple configuration. In particular, in a handheld color measurement device, when the operating section is operated with a fingertip, the position of the fingertip and the position of the opening become close to or coincide with each other, making it easy to intuitively determine the position of the opening.

[0011] The second aspect is characterized in that, in the first aspect, the operation unit is provided with a decision button that accepts at least one of determining measurement conditions and executing measurement, and when viewed from the first direction, the center position of the opening and the center position of the decision button coincide.

[0012] According to this aspect, the operation unit is provided with a decision button that accepts at least one of determining the measurement conditions and executing the measurement, and since the center position of the opening and the center position of the decision button coincide when viewed from the first direction, the opening can be more accurately aligned with the measurement site.

[0013] The third aspect is characterized in that, in the second aspect, the decision button is circular when viewed from the first direction, a cross button is arranged around the decision button for selecting various items, and a marker line is provided on the cross button so as to radiate outward from the center position of the decision button.

[0014] According to this aspect, the decision button has a circular shape when viewed from the first direction, and a cross button for selecting various items is arranged around the decision button, and a marking line is provided on the cross button so as to radiate outward from the center position of the decision button, making it easy to grasp the center position of the opening when looking at the top of the device.

[0015] A fourth aspect is characterized in that in any of the first to third aspects, the operation unit is configured to have a power button and all buttons related to measurement on the top surface. According to this aspect, the operation unit is configured with the power button and all buttons related to measurement on the top surface, so that the power button and all buttons related to measurement can be easily seen, making it easy to operate the device.

[0016] A fifth aspect is characterized in that in any one of the first to fourth aspects, the top surface including the operation portion is formed flat. According to this aspect, the top surface including the operation unit is formed flat, so that the device can be placed stably even when placed with its top surface facing downwards.

[0017] The sixth aspect is characterized in that, in any of the first to fifth aspects, it comprises a first circuit board having the incident light processing section, and a display section located on the upper surface and performing various displays, and has a portion where the display section and the first circuit board overlap when viewed from the first direction.

[0018] The seventh aspect is characterized in that, in any of the first to sixth aspects, the device is provided with a battery that supplies power to the incident light processing unit, the battery having a shape that extends in a second direction that intersects with the first direction and is the longitudinal direction of the device when viewed from the first direction, and both ends of the battery in the second direction face the inner surface of the side wall in the second direction of a housing that forms the outer shell of the device.

[0019] According to this aspect, the battery has a shape that extends in a second direction that intersects with the first direction and is the longitudinal direction of the device when viewed from the first direction, and both ends of the battery in the second direction face the inner surface of the side wall in the second direction of the housing that forms the outer shell of the device.Therefore, the weight balance in the second direction is superior compared to a configuration in which the battery is positioned offset in the second direction, and the handleability of the device is improved.

[0020] The eighth aspect is characterized in that, in the seventh aspect, the housing has a gripping recess on the side wall in a third direction that is perpendicular to the second direction and is the short side direction of the device when viewed from the first direction, and the battery and the recess have a portion that overlaps when viewed from the third direction.

[0021] According to this aspect, the housing has a recess for gripping on the side wall in a third direction, which is perpendicular to the second direction and corresponds to the short side of the device when viewed from the first direction, and the battery and the recess have an overlapping portion when viewed from the third direction, so that the battery, which is a heavy object, is close to the gripping position, improving the handling of the device.

[0022] The ninth aspect is characterized in that, in any of the first to eighth aspects, the incident light processing unit comprises 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. According to this aspect, in a configuration in which the incident light processing section includes a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light, and a light receiving section that receives the light that has passed through the optical filter, the functional effects of any of the above-mentioned first to eighth aspects can be obtained.

[0023] A tenth aspect of the present invention is the ninth aspect, wherein 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 above-mentioned ninth aspect can be obtained.

[0024] The present invention will be specifically described below. The XYZ coordinate system shown in each drawing is a Cartesian coordinate system, with the XY plane being the horizontal plane and the YZ plane being the 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 lateral 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 plane, and the longitudinal direction of the color measurement device 1 is along the Y-axis direction.

[0025] [Overall configuration of colorimeter 1] First, the overall configuration of a color measurement device 1 according to this embodiment will be described with reference to FIGS. The colorimetric device 1 has a configuration for measuring 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 colorimetric 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 that arrives from the measurement object 200 and enters it.

[0026] The bandpass filter 7 transmits light in the visible light range, for example, 380 nm to 720 nm, out of the light arriving and incident from the measurement object 200, and cuts out light in the ultraviolet and infrared ranges. 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.

[0027] The optical filter device 3 selectively transmits a desired 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 using the optical filter device 3 and obtaining the received light intensity using the light receiving unit 4.

[0028] 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 that arrives from and enters 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 housed inside an exterior that is made up of a first glass member 30 , a second glass member 31 , and a case 32 .

[0029] 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.

[0030] 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 surfaces of the opposing mirrors 39 are 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 composed 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 sent to the MCU 10. The distance between the opposing mirrors 39 is controlled by an electrostatic actuator configured by a fixed electrode 40 and a movable electrode 41 that are formed concentrically when viewed from the Z-axis direction and face each other.

[0031] When a voltage is applied between the facing fixed electrode 40 and movable electrode 41, an electrostatic force is generated that attracts the fixed electrode 40 and the movable electrode 41 to each other. At this time, the concentrically formed diaphragm portion 42 is deformed, and the mirror 39 of the diaphragm substrate 38 is attracted toward the base substrate 37, thereby controlling the distance between the facing mirrors 39. The wavelength of light that passes through the tunable interference filter 45 is selected in accordance with the distance between the facing mirrors 39.

[0032] During spectroscopic measurement, light from the measurement target 200 enters the optical filter device 3 along the optical axis CL from the second glass member 31 side to the first glass member 30 side. The optical axis CL is parallel to the Z-axis direction and is a line passing through the centers of the opening 21a (see FIG. 20), the measurement window 87a (see FIG. 20), the tunable interference filter 45, and the photodiode 4a (see FIG. 20). In particular, the opening 21a, the measurement window 87a, and the 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. The light incident on the optical filter device 3 interferes between the opposing mirrors 39, and light of a wavelength selected according to the distance between the opposing mirrors 39 is transmitted through the tunable interference filter 45. The light that has transmitted through the tunable interference filter 45 then passes through the first glass member 30 and travels toward the light receiving unit 4. The above is the configuration of the optical filter device 3.

[0033] Returning to FIG. 1, the MCU 10 is a microprocessor-based control device, 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 to drive 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 drive 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.

[0034] The light emitting unit 9 emits light for measurement toward the measurement object 200. The light emitting unit 9 is composed of a plurality of light emitting elements, specifically a plurality of LEDs, which emit light with different wavelength distributions. The MCU 10 controls the turning on and off of the light emitting unit 9.

[0035] The wired IF 12 and the wireless communication unit 13 are components for communicating with an external device. For example, USB (Universal Serial Bus) can be used as a standard for communication via the wired IF 12. Bluetooth can be used as a standard for the wireless communication unit 13. USB and Bluetooth are registered trademarks. The MCU 10 sends 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. The colorimetric device 1 can charge the battery 17 by receiving power from an external device via the wired IF 12.

[0036] The operation unit 14 is made up 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 more detail later. The display unit 15 is formed by, for example, a liquid crystal panel, and displays various information such as a user interface for setting colorimetry conditions based on signals sent from the MCU 10 and colorimetry 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, and the magnetic sensor 128 will be described again later.

[0037] The battery 17 is a lithium ion secondary battery in this embodiment, and supplies power to each component that requires power in the colorimetric 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.

[0038] [Appearance of colorimeter 1] Next, the external configuration of the colorimetric device 1 will be described with reference to FIGS. The device body 50 of the colorimetric device 1 is configured so that the outer shell 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 denotes the side surface of the device body 50 in the +Y direction, which will be referred to below as the front surface 50a. Reference numeral 50b (see FIG. 6) denotes the side surface of the device body 50 in the +X direction, which will be referred to below as the right side surface 50b. Reference numeral 50c denotes the side surface of the device body 50 in the -X direction, which will be referred to below as the left side surface 50c. Reference numeral 50d denotes the side surface of the device body 50 in the -Y direction, which will be referred to below as the rear surface 50d. In this specification, the terms "upper," "lower," "left," and "right" are used based on the direction as seen by the user when the user holds and uses the colorimetric device 1 as shown in Figure 27.

[0039] 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 the surface of the device body 50 in the +Z direction, which will be referred to below as the top surface 50e. Reference numeral 50f denotes the surface of the device body 50 in the -Z direction, which will be referred to below as the bottom surface 50f.

[0040] On the top surface 50e of the device body 50, the operation unit 14 and the display unit 15 are arranged 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 colorimetric device 1 according to this embodiment, all operation buttons are arranged on the top surface 50e and are collected together in the operation unit 14.

[0041] The power button 55 is a button for turning on and off the power of the colorimetric device 1. The decision button 54 is a button for deciding the various settings displayed on the display unit 15, that is, a button for deciding the colorimetric conditions, and also a button for executing colorimetric measurement. The decision button 54 has a perfect circular 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.

[0042] 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 and 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 and 58d are located in positions that pass through center position CL when extended in the X-axis direction.

[0043] Various information such as color measurement results is displayed on the display unit 15. In this embodiment, the display unit 15 is configured by 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 above the LCD 67, and this display unit cover 57 forms part of the upper surface 50e. In this embodiment, as shown in Fig. 20, there is almost no difference in level between the top surface of the display unit 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 difference in level overall. However, the top surface of the enter button 54 is slightly recessed as shown in Fig. 20, and is shaped to fit comfortably with the pad of the user's finger when pressing the enter button 54 as shown in Fig. 27.

[0044] As shown in Figures 4 and 6, a shutter unit 110 is provided on the bottom surface 50f. 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 that it can be held in both 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. By hooking the pads of the fingers on the ribs 111a, the user can slide the shutter unit 110 in the Y-axis direction.

[0045] 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 on the bottom surface 50f of the device. Note that the opening here means that light can enter, 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 through the opening 21a, and further passes through the measurement window 87a to enter the incident light processing unit 2.

[0046] 5 and 6, the center position CL coincides with the center positions of the opening 21a and the measurement window 87a. The line VCL is parallel to the Y-axis direction and passes through the center position CL when viewed from the Z-axis direction. The line HCL is 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 arranged symmetrically with respect to the line VCL as shown in FIG.

[0047] Next, as shown in Fig. 3, a wired IF 12 is provided on the front surface 50a of the device main body 50. Furthermore, 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 at the back of the opening 50m. The reset switch 71 is a switch for returning 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 these two openings 50n so that the user can easily carry the color measuring device 1.

[0048] 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 portions 50g are configured by recesses 51g formed in 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 curves toward the center of the device body 50 in the X-axis direction as it extends in the -Z direction. The grip portion 50g allows the user to grip the device body 50 easily and securely.

[0049] [Colorimeter 1 board configuration] Next, the board configuration of the color measurement device 1 will be described. The main body assembly 1a shown in FIG. 7 is an assembly provided inside the 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. As shown in Figures 7, 8, and 9, the multiple circuit boards are composed of a panel board 65 as the "second circuit board," a battery control board 70 as the "third circuit board," a light-receiving board 80 as the "first circuit board," and a light-emitting board 85 as the "fourth circuit board." 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.

[0050] The configuration of each circuit board will be described below with reference to Figures 10 to 13 and other figures as appropriate. Note that, hereinafter, the +Z direction surface of each circuit board may be referred to as the "upper surface," and the -Z direction surface may be referred to as the "lower surface." Also, some of the electronic components provided on the boards are not shown in Figures 10 to 13. The panel substrate 65 has an LCD connection section 66 on the top surface as shown in the upper diagram of Fig. 10. The LCD 67 is connected to the LCD connection section 66 by a cable 67a as shown in Fig. 20.

[0051] 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 enter button 54. Reference numerals 61a, 62a, 63a, and 64a denote contacts provided at positions corresponding to the up button 61, down button 62, left button 63, and 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 back button 56, respectively.

[0052] As shown in the lower diagram of Fig. 10, a first board connector 68 is provided on the underside of the panel board 65. The first board connector 68 and a fourth board 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 below. As shown in the lower diagram of FIG. 10, the panel substrate 65 has a wireless communication unit 13, which is a communication module, provided on its lower surface.

[0053] 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 its top surface. A battery control circuit, not shown in Fig. 11, is provided on the top 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.

[0054] The battery control board 70 is equipped with a second board connector 74 as shown in the lower diagram of Fig. 11. The second board connector 74 is mated with a third board connector 82 shown in the upper diagram of Fig. 12, thereby connecting the battery control board 70 and the light receiving board 80. This allows power from the battery 17 to be supplied to each circuit board via the light receiving board 80.

[0055] 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 board 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 has, on its underside, an optical filter device 3, a fourth substrate connection connector 83, and a fifth substrate connection connector 84. The fifth substrate connection connector 84 and a sixth substrate connection connector 88 shown in the lower diagram of Fig. 13 are connected by a connection cable 91 as shown in Fig. 9, thereby connecting the light receiving substrate 80 and a light emitting substrate 85 described later.

[0056] 11 includes 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 that constitutes 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 adjusted output to the optical filter device 3, and a temperature sensor that detects the temperature around the optical filter device 3.

[0057] 11, a shielding sheet 29 is provided 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.

[0058] Next, the light-emitting substrate 85 will be described with reference to Fig. 13. The light-emitting substrate 85 is provided with a light-collecting member 87 extending between its upper and lower surfaces. The light-collecting member 87 is formed with the measurement window 87a described above. 13, a sixth board connection connector 88 is provided on the underside 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, and the light-shielding member 89 prevents the measurement light emitted from the light-emitting element 86 from leaking out.

[0059] [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 is configured to include 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 of 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.

[0060] Each frame will be described in turn below. The main frame 101 is a frame that forms the base of the device main body 50, and has a main plate portion 101a that forms a frame surface that extends in the Y-axis direction and the Z-axis direction, in other words, 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-direction end of the main plate portion 101a and forms a frame surface that is 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, which allows heat from the panel substrate 65 to be transferred to the panel substrate support portion 101b, i.e., the main frame 101.

[0061] 18, at the -Z end of the main plate portion 101a, the +Y end is bent in the -X direction, and then the +Z end is 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 then the +Z end is bent in the +Y direction to form a battery control board support portion 101e parallel to the XY plane.

[0062] 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 with 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.

[0063] 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 unit board holding frame 104 as shown in FIGS. 14 and 16. The light emitting unit board holding frame 104 is fixed to the underside of the frame holding part 101f with screws (not shown). The light emitting unit board holding frame 104 is in surface contact with the frame holding part 101f. In other words, the light emitting unit board holding frame 104 is in direct contact with the main frame 101. This allows heat from the light emitting unit board holding frame 104 to be transferred to the frame holding part 101f, i.e., the main frame 101.

[0064] 7 and 20, the light-emitting unit board holding frame 104 holds the light-emitting unit board 85. The light-emitting unit board holding frame 104 is an example of a second sub-frame that holds the light-emitting unit board 85. The light-emitting unit board 85 is fixed to the underside of the light-emitting unit board holding frame 104 with screws (not shown). The light-emitting unit board 85 is in surface contact with the light-emitting unit board holding frame 104, which allows heat from the light-emitting unit board 85 to be transferred to the light-emitting unit board holding frame 104, and ultimately to the main frame 101.

[0065] 15, a bottom frame 105 is fixed to the underside of the light-emitting unit board holding frame 104 with screws (not shown). The bottom frame 105, which will be described in detail later, is a frame for fixing one end of a torsion spring 117 (see FIG. 32) that presses against the shutter unit 110 (see FIG. 32). 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.

[0066] 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.

[0067] 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 Figure 20. The bottom surface of the battery 17 is in surface contact with the battery support part 102a, which allows heat from the battery 17 to be transferred to the battery support part 102a, i.e., the battery holding part 100a.

[0068] 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. Furthermore, 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 relative 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 relative to the main plate portion 101a of the main frame 101 and is in surface contact with the main plate portion 101a.

[0069] In this manner, the battery holding portion 100a is configured to surround the battery 17 by the battery holding frame 102, the panel substrate support 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 that is 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 that is located in the +X direction with respect to the battery 17 and constitutes the battery holding portion 100a.

[0070] 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 support portion 101b. The restricting portion 101d restricts movement of the battery 17 in the +Y direction, as shown in FIGS. 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. As shown in FIG. 20, an elastic member 28 is also provided between the upper surface of the battery 17 and the panel substrate support portion 101b.

[0071] 14 and 16, the light-receiving unit board holding frame 103 has a base portion 103b that forms a frame surface parallel to the XY plane, and a light-receiving unit board support portion 103a. The light-receiving unit board support portion 103a is located in the +Z direction from the base portion 103b. The light-receiving unit board support portion 103a supports the light-receiving unit board 80 from below, as shown in FIGS. 7 and 20. The light-receiving unit board 80 is fixed to the light-receiving unit board support portion 103a with screws (not shown). The light-receiving unit board holding frame 103 is an example of a first sub-frame that holds the light-receiving unit board 80. The light receiving substrate 80 is in surface contact with the light receiving substrate support portion 103 a, and heat from the light receiving substrate 80 is thereby transferred to the light receiving substrate holding frame 103 .

[0072] The light receiving portion substrate holding frame 103 is supported from below by the light emitting portion substrate holding frame 104 as shown in FIG. Reference numerals 104a and 104b indicate frame support portions that 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. Because 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.

[0073] [Other configurations of color measurement devices] The remaining configuration of the colorimetric device 1, excluding the shutter unit 110, will be described below. 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, PD board 5, wireless communication unit 13, battery control board 70, and light receiving unit 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 unit board 80 match when viewed from the Z-axis direction except for the end in the -Y direction, where the outline of the light receiving unit board 80 is positioned 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 , there is a portion where the incident light processing section 2 and the battery 17 overlap when viewed from the Z-axis direction.

[0074] 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) that constitutes the incident light processing section 2 is not shown 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.

[0075] In this way, when viewed from the Z-axis direction, there is a portion where the incident light processing section 2 and the battery 17 overlap, so 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 device dimensions in the horizontal direction, 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.

[0076] 24 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. Similarly, from the viewpoint of the battery holding portion 100a, there is a portion where the incident light processing portion 2 and the battery holding portion 100a overlap when viewed from the Z-axis direction, and therefore the horizontal device dimensions can be reduced compared to a configuration in which the incident light processing portion 2 and the battery holding portion 100a are arranged in a direction intersecting the Z-axis direction, i.e., horizontally.

[0077] 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 part of the incident light processing section 2 may be outside the area of ​​the battery 17 or the battery holding section 100a.

[0078] 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-direction end of the battery 17 is located inside the +Y-direction end of the light-receiving substrate 80, and the -Y-direction end of the battery 17 slightly protrudes beyond the -Y-direction end of the light-receiving substrate 80. However, the battery 17 may be configured so that it is 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.

[0079] 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.

[0080] The colorimetric 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 an emitting unit board 85 having an 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 one another 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 this order from the bottom surface 50f to the top surface 50e of the device body 50 in the Z-axis direction. 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 of the device main body 50 to the top surface 50e. With this configuration, it is possible to reduce the dimensions of the device in the X-axis direction and the Y-axis direction, which are directions intersecting the Z-axis direction, that is, in the horizontal direction. It is also possible to dispose the battery control board 70 and to place the electronic components mounted on the battery control board 70 on the panel board 65 or the light receiving board 80 as appropriate. Furthermore, the configuration that is arranged to overlap along the Z-axis direction may be a combination of any two 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.

[0081] 20 , first end 17a, which is the end of battery 17 in the +Y direction, faces front inner wall surface 51e of main housing 51. Second end 17b, which is the end of battery 17 in the -Y direction, faces rear inner wall surface 51f of main housing 51. In other words, both ends of battery 17 in the Y direction face the inner surfaces of the 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 compared to 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 also located at the center of the device in the X-axis direction as shown in FIGS. 21 and 22, so the weight balance of the device main body 50 in the X-axis direction is also excellent.

[0082] 3, 4, 21, and 22, recesses 51g constituting grip portions 50g are formed in main housing 51 on right side surface 50b and left side surface 50c of device body 50, enabling a user to easily and securely grip device body 50. Here, the range indicated by arrow Za in Figures 22 and 25 is the range in which recesses 51g are formed in the Z-axis direction, and as shown in Figure 25, recesses 51g and battery 17 have an overlapping portion when viewed from the X-axis direction. This allows the battery 17, which is a heavy object, to be positioned close to the gripping position, improving the handling of the device.

[0083] 22, the portions of the right wall 51b and the left wall 51c of the main housing 51 from the recess 51g toward the bottom surface 50f, i.e., in the -Z direction, are located at the same position as a part of the LCD 67 in the X-axis direction. The portions of the right wall 51b and the left wall 51c in the -Z direction from the recess 51g are located 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. This allows the device portion in the -Z direction from the recess 51g to be miniaturized in the X-axis direction, as shown in FIG. 22.

[0084] 23, the colorimetric 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 object 200 (see FIG. 1) based on the position of the operation unit 14, meaning that the opening 21a can be aligned with the measurement portion with a simple configuration. In particular, the colorimetric device 1 is configured as a handheld type, and when the user operates the operation unit 14 with the fingertip Fs as shown in Figure 27, the position of the fingertip Fa and the position of the opening 21a become close to each other, making it easy to intuitively understand the position of the opening 21a.

[0085] In particular, in this embodiment, the center position of the opening 21a and the center position of the enter button 54 coincide when viewed from the Z-axis direction. This allows the opening 21a to be more accurately positioned at the measurement site.

[0086] 5, the enter 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 enter button 54. The cross button 60 has marker lines that radiate outward from the center of the enter button 54. The marker lines are made up of vertical lines 58a and 58b and horizontal lines 58c and 58d. This makes it easier to grasp the center position of the opening 21a when looking at the top surface 50e of the device.

[0087] The operation unit 14 is also configured with a power button 55 and all buttons related to measurement on the top surface 50e, which makes it easy to see the power button 55 and all buttons related to measurement, facilitating operation of the device. Furthermore, the top surface 50e including the operation unit 14 is formed flat, so that the device can be placed stably even when placed with the top surface 50e facing downwards.

[0088] 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 unit 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 direction 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 dimensions of the device 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.

[0089] 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. Similarly, in terms 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 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., horizontally.

[0090] 7, the wireless communication unit 13 is provided on the lower surface of the panel substrate 65, and is arranged inside the battery holding portion 100a when the panel substrate 65 is supported by the panel substrate support portion 101b. By arranging the wireless communication unit 13 using the inside of the battery holding portion 100a in this way, it is possible to reduce the size of the device. Here, there is a risk that heat dissipation from battery holding portion 100a may adversely affect wireless communication unit 13, but battery holding portion 100a has cutout portion 100b formed therein (see also FIG. 14 ), and wireless communication unit 13 is positioned facing cutout portion 100b. That is, when battery holding portion 100a is viewed from the −X direction, wireless communication unit 13 is exposed through cutout portion 100b. This makes it possible to prevent heat dissipation from battery holding portion 100a from adversely affecting wireless communication unit 13.

[0091] 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. The position indicated by symbol Z1 in FIG. 20 is the furthest position in the +Z direction of the PD board 5, which is located furthest in the +Z direction of the incident light processing unit 2. The position indicated by symbol Z3 is the furthest position in the -Z direction of the parts that make up the operation unit 14, specifically the Z-direction positions of the contacts (symbols 54a, 61a, and 62a in FIG. 20). The position indicated by symbol Z2 is an intermediate position between positions Z1 and Z3. Here, the battery 17 is equipped with an internal thermistor 18. The thermistor 18 is an example of a temperature detection unit, and when the internal temperature of the battery 17 detected 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.

[0092] The thermistor 18 is located in the +Z direction from the position Z2 in the Z-axis direction, that is, at a position closer to the operation unit 14 than the incident light processing unit 2. In this embodiment, the incident light processing section 2 is one of the components of the colorimetric device 1 where a portion of the supplied power is converted into heat, and the generated heat adversely affects the temperature detection by the thermistor 18. In the incident light processing section 2, heat generation is particularly noticeable in the PD board 5. However, because the thermistor 18 is located closer to the operation section 14 than the incident light processing section 2, the adverse effect of the heat generated in the incident light processing section 2 on the thermistor 18 can be suppressed, and the temperature of the battery 17 can be detected more appropriately.

[0093] Furthermore, as described above, the frame assembly 100 includes the battery holding portion 100a that surrounds the battery 17 (see FIG. 7), so that heat generated from the battery 17 is efficiently dissipated by the battery holding portion 100a.

[0094] The thermistor 18 and 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., closer to the end in the +Y direction. "Close to the end in the +Y direction" means that they are located further in the +Y direction than the middle position of the main assembly 1a in the Y-axis direction. The main assembly 1a also includes a wired IF 12, which is a connection section for wired communication with external devices, at one end of the main assembly 1a in the Y-axis direction, i.e., 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 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, heat generated in the incident light processing section 2 is dissipated from the wired IF 12 to outside the device before it reaches the thermistor 18. This makes it possible to suppress adverse effects of heat generated in the incident light processing section 2 on the thermistor 18.

[0095] 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 tends to generate heat more significantly 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.

[0096] 7, 14, and 15, the colorimetric device 1 includes a light-receiving unit board 80 and a light-emitting unit board 85, and also includes a frame assembly 100 formed of a metal material. The frame assembly 100 includes a main frame 101 that forms the base of the device, a light-receiving unit board holding frame 103 that holds the light-receiving unit board 80, and an light-emitting unit board holding frame 104 that holds the light-emitting unit board 85. The light-receiving unit board holding frame 103 and the light-emitting unit board holding frame 104 come into direct or indirect contact with the main frame 101.

[0097] More specifically, in this embodiment, each frame constituting the frame assembly 100 is made of aluminum as described above. The light-emitting unit board holding frame 104 is in direct contact with the main frame 101 as described above, and the light-receiving unit board holding frame 103 is in indirect contact with the main frame 101 via the light-emitting unit board holding frame 104. With this configuration, heat generated by the light receiving substrate 80 and the light emitting substrate 85 is transmitted to the entire frame assembly 100, preventing local temperature increases inside the device and preventing adverse effects on color measurement results, etc.

[0098] In this embodiment, the light-receiving unit 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 unit 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, if 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 be a member with excellent thermal conductivity, such as a metal material.

[0099] 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.

[0100] Furthermore, since the frame assembly 100 includes a battery holding portion 100a that is shaped to surround the battery 17 as described above with reference to FIG. 7, heat generated from the battery 17 is transferred to the battery holding portion 100a and is efficiently dissipated via the main frame 101 and the battery holding frame 102.

[0101] The battery holding portion 100a has a battery support portion 102a as a first wall portion that supports the battery 17 from below, and a panel board support portion 101b as a second wall portion that faces the battery support portion 102a and forms the wall portion on the upper surface side of the battery holding portion 100a. The battery holding portion 100a also has a sub-plate portion 101c as a third wall portion and a second frame portion 102c as a fourth wall portion that are positioned on either side of the battery 17 in the X-axis direction. With this configuration, heat generated from the battery 17 is efficiently dissipated.

[0102] 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 with excellent thermal conductivity, such as a metal material.

[0103] [Shutter unit configuration] Next, we will explain 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 comprising 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.

[0104] 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.

[0105] 32, 33, and 35, first lower guide portion 21c, second lower guide portion 21d, and third lower guide portion 21e are formed along the Y-axis direction at the +X-direction end and the -X-direction end of opening forming member 21. Of these, first lower guide portion 21c and second lower guide portion 21d have shapes that curve in the +Z direction as they approach the -Y direction. Furthermore, third lower guide portion 21e is formed in a shape that is slightly inclined toward the -Z direction as it approaches the -Y direction.

[0106] As shown in Fig. 35, first upper guide portions 53c are formed at the +X direction end and the -X direction end of the bottom housing 53 so as to sandwich the first guide shaft 121 between them and the above-mentioned first lower guide portion 21c. Note that Fig. 35 shows the first upper guide portion 53c located at the end in the +X direction. Similarly, second upper guide portions 53d are formed at the +X direction end and the -X direction end of bottom housing 53 so as to sandwich second guide shaft 122 between them 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 portions 53e are formed at the +X direction end and the -X direction end of bottom housing 53 so as to sandwich third guide shaft 123 between them and third lower guide portion 21e. Note that Fig. 35 shows third upper guide portion 53e located at the end in the +X direction.

[0107] In this way, the first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 are sandwiched in the Z-axis direction between the opening forming member 21 and the bottom housing 53, 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, and therefore 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 21e, the third upper guide portion 53e, and the connecting shaft 114 in the shutter holding member 111.

[0108] 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.

[0109] 31, 33, 34, 36, and 37, the surface of the opening forming member 21 in the -Z direction where the opening 21a is formed is indicated by the 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 an annular 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. 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, the link member 113 of the shutter unit 110 in the closed position does not protrude beyond at least the shutter holding member 111 in the -Z direction, and most of it does not protrude beyond the bottom surface 50f.

[0110] Because 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.

[0111] Furthermore, when the shutter holding member 111 moves in the +Z direction, the link member 113 rotates relative to the shutter holding member 111 via the connecting shaft 114, as shown by the change from Figure 36 to Figure 37. 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. Furthermore, when the shutter unit 110 is in the open position, the entire link member 113 does not protrude in the -Z direction from the bottom surface 50f, as shown in Figure 20.

[0112] Next, bearing portions 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 these bearing portions 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 this 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 this torsion spring 117 is rotatably fixed to a third guide shaft 123 provided on the link member 113. The tip of the other end of the torsion spring 117 is formed in 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.

[0113] 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 Figure 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.

[0114] 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 displaces from the closed position to a neutral position (described below), and eventually the Y-axis component becomes zero, leaving only a -Z direction component. At this point, 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 decreases in the same way and eventually becomes zero.

[0115] When 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 torsion spring 117 presses shutter unit 110 includes a -Y direction component, and this -Y direction component increases as shutter unit 110 is displaced toward the open position. As a result, as shown in Figure 37, when shutter unit 110 is in the open position, pressing force F with which torsion spring 117 presses shutter unit 110 includes a -Y direction component of pressing force Fy, and shutter unit 110 is held in the open position.

[0116] 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).

[0117] Furthermore, 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 is white so that the reflectance approaches 100% in order to obtain a reflection reference value. White plate 125 is located in the central region in the planar direction of shutter member 112, i.e., in the XY plane. Here, white plate 125 located in the central region in the planar direction of shutter member 112 means that the range of white plate 125 includes the central position of shutter member 112 in the planar direction. The central position of shutter member 112 in the planar direction is the central position of 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.

[0118] 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 of 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 surfaces 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 surfaces of the shutter holding member 111.

[0119] The size of opening 111b in the Z-axis direction is larger than the size of protrusion 112d in the Z-axis direction, which allows protrusion 112d to move in the Z-axis direction while inserted into opening 111b. This allows shutter member 112 to be held by shutter holding member 111 so as to be movable in the Z-axis direction.

[0120] 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, specifically, three pressing portions 118a. The multiple pressing portions 118a are arranged at approximately equal intervals along the periphery of the opening 21a.

[0121] 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). When the contact surface 112a presses against the shutter opposing surface 21g, the opening 21a is closed, and the intrusion of dust and other particles into the device via the opening 21a is suppressed.

[0122] 31, 33, 41, and 42, first protruding ribs 21b are formed along the Y-axis direction on both sides of the shutter opposing surface 21g in the X-axis direction. 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 on the shutter member 112 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.

[0123] 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 extending in the -Y direction toward the -Z direction is formed at the -Y end of the second protruding rib 112b. An inclined surface 21h extending in the +Y direction toward the +Z direction is formed at the +Y 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.

[0124] 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 way, 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-opposing surface 21g can be minimized.

[0125] 43 to 45, a window 112f is formed in the shutter member 112, and the magnet 127 is provided so as to be exposed through this window 112f. The magnet 127 is fixed to the shutter holding member 111 with an adhesive or double-sided tape. A magnetic sensor 128 is provided on the lower surface of the light emitting substrate 85 .

[0126] 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 Figure 44. In this state, the linear distance between the magnet 127 and the magnetic sensor 128 is the shortest. In contrast, 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 Figure 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 due to disposing the magnetic sensor 128 near the opening 21a can be suppressed.

[0127] The magnetic sensor 128 is a magnetic sensor that changes a detection signal depending on the strength of the magnetism, and when the shutter unit 110 is in the open position, it sends a high detection signal to the MCU 10 (see FIG. 1). When the shutter unit 110 is in the closed position, the magnetic sensor 128 sends a low detection signal to the MCU 10 (see FIG. 1). In other words, the magnetic sensor 128 is a detection means that changes a detection signal depending on 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.

[0128] As described above, the shutter unit 110 is configured to include a shutter member 112 that closes 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 that is an example of a pressing member that presses the shutter member 112 toward the opening 21a. This prevents a gap from being generated between the shutter member 112 and the opening 21a due to the shutter member 112 being pressed toward the opening 21a even if there are manufacturing errors or assembly errors in the parts or wear and tear that occurs with use. As a result, the intrusion of dust and other particles into the opening 21a can be effectively prevented.

[0129] 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 on the opening 21a, and allowing the shutter member 112 to effectively close the opening 21a.

[0130] Furthermore, there is provided a moving means 119 that moves the shutter member 112 in a direction in which the shutter member 112 moves away from the opening forming member 21 when the shutter unit 110, which is in the closed position, moves toward the open position. This reduces wear between the shutter opposing surface 21g, which is the portion of the opening forming member 21 that forms the opening 21a, and the contact surface 112a, which is the 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, which reduces the risk of dust and the like getting in.

[0131] Further, 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 out of 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 on the first protruding rib 21b, causing the shutter member 112 to move in a direction away from the opening forming member 21. With such a configuration, the moving means 119 can be configured at low cost.

[0132] 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 the shutter holding member 111 so as 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 further from the bottom surface 50f than the shutter holding member 111, regardless of the position of the shutter unit 110. This allows for a more compact device, 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.

[0133] The shutter unit 110 also includes a torsion spring 117 that presses 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 Figure 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 Figures 36 and 37). With this configuration, a means for maintaining the shutter unit 110 at the closed position and the open position can be configured at low cost.

[0134] 46 schematically 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. Symbol A1 indicates the range of movement of the shutter unit 110 between the closed position Ya1 and the neutral position Yac, and symbol A2 indicates the range of movement of the shutter unit 110 between the open position Ya2 and the neutral position Yac.

[0135] 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 remain stopped without moving even when the shutter unit 110 is slightly closer to the closed position Ya1 than the neutral position Yac. Similarly, even when the shutter unit 110 is slightly closer to the open position Ya2 than the neutral position Yac, the shutter unit 110 may remain stopped without moving. 46 is a region in which the shutter unit 110 maintains a stopped state in this manner. Hereinafter, this will be referred to as the stop region K of the shutter unit 110.

[0136] Next, as described above, a 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.

[0137] The shutter unit 110 and the related configuration can be modified as shown in Figures 47 to 50. In Figures 47 to 50, the same components as those already explained are given the same reference numerals, and duplicate 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.

[0138] 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 so as to be rotatable 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 to a part of the opening forming member 21A, and the other end of the torsion spring 133 is hooked to the second link member 130.

[0139] Figure 47 shows a state in which shutter unit 110A is in the closed position, and Figure 48 shows a state in which 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 shutter unit 110A is displaced, shutter holding member 111A and link member 113A rotate relative to each other, and link member 113A and second link member 130 also rotate relative to each other. At this time, torsion spring 133 changes its position in the same way 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. Also, when shutter unit 110A is between the open position and the neutral position, torsion spring 133 presses shutter unit 110A toward the open position.

[0140] 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 rotatable relative to each other. 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.

[0141] 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 rotatable relative to each other. A torsion spring (not shown) is provided in the +Z direction relative to the arm member 143 to generate a spring force between the opening forming member 21B and the arm member 143.

[0142] Figure 49 shows a state in which shutter unit 110B is in the closed position, and Figure 50 shows a state in which shutter unit 110B is in the open position. As shown by the change from Figure 49 to Figure 50, or the change from Figure 50 to Figure 49, the shutter holding member 111B and the link member 113B rotate relative to each other as the shutter unit 110B moves. 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.

[0143] As arm member 143 rotates, the posture of a torsion spring (not shown) located in the +Z direction relative to arm member 143 changes. 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. Also, 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.

[0144] Next, as described above, the colorimetric device 1 includes a 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.

[0145] Furthermore, since the magnetic sensor 128 is a sensor that changes its detection signal depending on the strength of the magnetic field, there is no need to provide a dedicated opening or the like to allow the detection light to pass through, as is the case with optical sensors, and this avoids the reduction in airtightness of the device that would otherwise be caused by the formation of an extra 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 proximity sensor, an inductive proximity sensor, or a contact sensor can also be used.

[0146] 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 Figure 51, when the power button 55 (see Figure 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 power off processing for 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 postponed. 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).

[0147] This prevents the device from being powered off while the shutter unit 110 is 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 by displaying an alert that the shutter unit 110 is in the open position on the display unit 15. The alert that the shutter unit 110 is in the open position can be a message display such as "The shutter is open. Please close it."

[0148] 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 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 indicating that the shutter unit 110 is in the open position (step S204). This allows the reference value to be appropriately acquired 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 the 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 while the device is in the power-on state.

[0149] Next, in FIG. 53, when the decision button 54 (see FIG. 5, etc.) is pressed, i.e., 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 MCU 10 executes colorimetry processing (step S303). On the other hand, if the shutter unit 110 is in the closed position (No in step S302), the transition to power-off is postponed. 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 colorimetric 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), the reference value may be obtained using the white plate 125, and then the process may proceed to step S304.

[0150] 46, in the displacement region (A1+A2) of the shutter unit 110, region B1 where 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 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. In particular, in this embodiment, the area B1 is set further toward the closing position Ya1 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 that the shutter unit 110 is in the closed position, 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 even when it is in an intermediate position, and ultimately makes it possible to reliably obtain a reference value using the white plate 125.

[0151] 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 colorimetric device 1 has a built-in battery 17, but the battery 17 may be configured to be removable, that is, the colorimetric device 1 may not have a built-in battery 17. In this case, the battery 17 may be a primary battery that is not repeatedly charged and discharged.

[0152] In this embodiment, the incident light processing unit 2 includes an optical filter device 3 and a light receiving unit 4. The optical filter device 3 is a wavelength-tunable Fabry-Perot etalon that transmits a predetermined wavelength component of the incident light, but the present invention is not limited to this. For example, a spectroscopic method using a diffraction grating may be used. Furthermore, the colorimetric principle may be a device configuration that employs a direct stimulus value reading method that directly measures three stimulus values ​​that are the basis of color. In this embodiment, an LED is used as the light emitting element used in the light emitting unit 9, but this is not limiting, and for example, a xenon lamp may also be used. [Explanation of symbols]

[0153] 1...colorimetric device, 1a...main body assembly, 2...incident light processing section, 3...optical filter device, 4...light receiving section, 4a...photodiode, 5...PD substrate, 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 opposing 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...grip 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, 53c...first upper guide portion, 53d...second upper guide 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 pad, 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 unit board, 81...light receiving module, 82...third board connection connector, 83...fourth board connection connector, 84...fifth board connection connector, 85...light emitting unit board, 86...light emitting element, 87...light collecting member, 87a...measurement window portion, 88...sixth board connection 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...regulating 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 unit board holding frame, 103a...light receiving unit board support portion, 103b...base portion, 104...light emitting unit 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, 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. A device body, an opening formed in an opening forming member disposed on the bottom surface of the device body, for introducing light arriving from the measurement object into the device; an incident light processing section that processes light incident through the opening; an operation unit located on a top surface opposite to the bottom surface; Equipped with The operation unit includes: a decision button for accepting at least one of determination of measurement conditions and execution of measurement; a cross button arranged around the decision button for selecting various items; the decision button has a circular shape when viewed from a first direction that is a direction intersecting the bottom surface and the top surface, The cross button is provided with marking lines that radiate outward from the center position of the decision button, When viewed from the first direction, a center position of the opening coincides with a center position of the enter button, which is a position where the mark line intersects with the mark line when extended; The marking line is two horizontal lines positioned on either side of the center position of the decision button; two vertical lines positioned on either side of the center position of the enter button, The direction along the two horizontal lines is defined as a horizontal direction, and the direction along the two vertical lines is defined as a vertical direction, The device body includes: a right side surface and a left side surface that intersect the bottom surface and sandwich the bottom surface in the horizontal direction when viewed from the first direction; a front surface and a rear surface that intersect the bottom surface, the right side surface, and the left side surface and sandwich the bottom surface in the vertical direction when viewed from the first direction; the horizontal distance between the right side and the left side is shorter than the vertical distance between the front side and the rear side; A color measuring device characterized by:

2. 2. The color measurement device according to claim 1, wherein the operation unit further includes a power button; The power button and all buttons related to measurement are arranged on the top surface. A color measuring device characterized by:

3. 3. The color measurement device according to claim 1, wherein the upper surface including the operation unit is formed flat. A color measuring device characterized by:

4. 4. The color measurement device according to claim 1, a first circuit board including the incident light processing section; a display unit located on the top surface and performing various displays; a portion where the display unit and the first circuit board overlap when viewed from the first direction; A color measuring device characterized by:

5. 5. The color measurement device according to claim 4, further comprising a battery that supplies power to the incident light processing section, the battery has a shape extending in a second direction that intersects with the first direction and is a longitudinal direction of the device when viewed from the first direction; Both end portions of the battery in the second direction face the inner surface of a side wall of the device main body in the second direction. A color measuring device characterized by:

6. 6. The color measurement device according to claim 5, wherein the device body includes a gripping recess on a side wall in a third direction that is a direction perpendicular to the second direction and that is a width direction of the device when viewed from the first direction, The battery and the recess have an overlapping portion when viewed from the third direction. A color measuring device characterized by:

7. 7. The color measurement device according to claim 6, a second circuit board to which the display unit is connected; a third circuit board to which the battery is connected; a fourth circuit board including a light emitting unit that emits light for measurement; Equipped with a portion where the incident light processing section and the battery overlap when viewed from the first direction; the fourth circuit board, the first circuit board, the third circuit board, the battery, and the second circuit board are arranged to overlap each other in this order from the bottom surface to the top surface in the first direction; A color measuring device characterized by:

8. 8. 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:

9. 9. The color measuring device according to claim 8, wherein the optical filter is a Fabry-Perot etalon. A color measuring device characterized by:

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