Vehicle display device

Abstract

Vehicle display device (1), comprising: a pointer (7) which rotates about a rotation axis (C) as a center of rotation, and a scale part (8) to which the pointer (7) points, wherein the scale part (8) comprises: a base material (80) that shields light of a visible light spectrum component, a transparent scale part (82) in which a plurality of transparent scales (81) which transmit the light of the visible light component are integrated, wherein the plurality of transparent scales (81) are arranged next to each other at intervals along a direction of rotation of the pointer (7) and are exposed from the base material (80), a colored scale (83) which transmits light of the visible light component and is colored, wherein the colored scale (83) is arranged next to the transparent scale part (82) at a distance along the direction of rotation and is exposed from the base material (80), and a slot (84) which is arranged between the transparent scale part (82) and the colored scale (83) with respect to the direction of rotation, wherein the slot (84) is positioned on a back side of the base material (80) and extends to the base material (80) in a depth direction (X), wherein the back side of the base material (80) is a side opposite a viewing position side (EP) in the depth direction (X), and the scale part (8) is illuminated with light from a light source (11) on the back in the depth direction (X), and the transparent scale part (81) and the colored scale part (83) emit light due to the incident light.

Description

Background of the invention 1. Field of invention

[0001] The present invention relates to a vehicle display device. 2. State of the art

[0002] For example, published Japanese patent application No. JP 2014-178 279 A describes a structure for a three-dimensional design section of a measuring device in a car, comprising a scale dial, a light guide, a three-dimensional design section, a recess, and a color print as a technique relating to a conventional vehicle display device in a vehicle. The light guide is arranged on a rear surface of the scale dial, with light from a light source incident on it from a base end. The three-dimensional design section projects from a front end of the light guide and extends through a through-hole in the scale dial. The recess is formed around the three-dimensional design section on a rear surface of the light guide that faces an opposite side of the scale dial.The color print is applied to the recess in such a way that it surrounds the three-dimensional design section on the back surface of the light guide body.

[0003] In the three-dimensional design section of a measuring device in a vehicle described above, according to published Japanese patent application No. JP 2014-178 279 A, ​​a variety of three-dimensional design sections can be provided, some of which are colored. In this case, there is room for further improvement of the three-dimensional design section so that a colored light-emitting section and a colorless light-emitting section can emit light correctly.

[0004] Document JP 2003-222 537 A concerns a lighting system equipped with light sources comprising LEDs and a scale plate illuminated by light from the light sources. The scale plate has translucent elements such as a scale, symbols, or graphics. It also includes a second translucent display layer that converts the illumination color of the translucent element between the translucent elements into a color different from the illumination color of the light sources. The second translucent display layer consists of the first and second layers and is laminated in the thickness direction of the scale plate.

[0005] Publication WO 2015 / 187522A2 relates to a process for forming a display board in a mold, wherein a first polymer material is introduced into a mold, the first polymer material being metallization-resistant, a second polymer material being introduced into the mold, the second polymer material being metallization-capable, the forming of an article from the first polymer material and the second polymer material, the second polymer material extending along a surface section of the article, and the joining of a metallic material to the surface section of the article to form a part with a metallic surface finish by exposing the article to the metallic material in a metallization process, the metallic material not being joined to the first polymer material. Summary of the invention

[0006] The present invention refers to the circumstances described above, and it is an object of the present invention to provide a vehicle display device with which a light emission part can emit light correctly.

[0007] According to one aspect of the present invention, a vehicle display device comprises a pointer that rotates about the center of rotation of a pivot axis and a scale part towards which the pointer points.The scale part comprises a base material that blocks light of a visible light component, a transparent scale part in which a plurality of transparent scales, which transmit light of the visible light component and are transparent, are integrated, wherein the plurality of transparent scales are arranged side by side at intervals along a direction of rotation of the pointer and are exposed from the base material, a colored scale that transmits light of the visible light component and is colored, wherein the colored scale is arranged next to the transparent scale part at a interval along the direction of rotation and is exposed from the base material, and a slot part that is arranged between the transparent scale part and the colored scale with respect to the direction of rotation.The slot is positioned on a back side of the base material and extends to the base material in a depth direction, the back side of the base material being a side opposite a viewing position side in the depth direction, and the scale part is illuminated with light from a light source on the back side in the depth direction, and the transparent scale part and the colored scale part emit light due to the incident light.

[0008] These and other tasks, features and advantages, as well as the technical and industrial significance of the invention, are illustrated by the following detailed description based on currently preferred embodiments of the invention with reference to the accompanying drawings. Brief description of the drawings Fig. Figure 1 is a schematic front view showing a configuration of a vehicle display device according to one embodiment. Fig. Figure 2 is a schematic, perspective partial view showing the configuration of the vehicle display device according to the embodiment. Fig. Figure 3 is a schematic partial cross-sectional view (a cross-sectional view along line AA of Fig. 1), which shows a configuration of the vehicle display device according to the invention. Detailed description of preferred embodiments

[0009] One embodiment of the present invention is described in detail below with reference to the drawings. However, the invention is not limited to this embodiment. Furthermore, elements of this embodiment can be replaced by other, essentially identical elements by a person skilled in the art. embodiment

[0010] One in Fig. The vehicle display device 1 shown in Figure 1 according to the present invention is a measuring device integrated into the vehicle. For example, the vehicle display device 1 is mounted in an instrument panel on the dashboard of a vehicle and displays various types of information relating to the vehicle for use while driving the vehicle.

[0011] The depth direction X corresponds to a first direction of the vehicle display device 1 of Fig. 1 usually corresponds to a front-to-rear direction of the vehicle in which the vehicle display device 1 is installed. The depth direction X also corresponds to the axial direction along the axis of rotation C, which forms the center of rotation of the pointer 7. Furthermore, a front side of the vehicle display device 1 is a side facing the driver's seat of the vehicle in the depth direction X and is usually the side viewed by a driver seated in the driver's seat. Additionally, the front side in the depth direction X of the vehicle display device 1 is the side on which a viewing position EP (see Fig. 3) is positioned. The viewing position EP is usually contained within a so-called viewing area of ​​the vehicle in which the vehicle display device 1 is installed. The viewing area is "the viewing area of ​​a driver of a vehicle" and corresponds to the area defined in accordance with the vehicle in which the driver's viewing point is positioned. The viewing area is usually a statistical representation of the distribution of the driver's viewing positions in the vehicle and corresponds, for example, to an area containing the driver's viewing positions with a predetermined ratio (for example, 95%) in a state where the driver is seated in the driver's seat. Furthermore, the rear of the vehicle display device 1 is a side opposite the front in the depth direction X and is usually the side to be accommodated in the instrument panel.Furthermore, the lateral direction Y, as a second direction of the vehicle display device 1, usually corresponds to a vehicle width direction of the vehicle in which the vehicle display device 1 is installed. In the following description, the left side (left side in . Fig. 1), which faces a front surface of the vehicle display device 1 in the lateral direction Y of the vehicle display device 1, is designated as the left side in the lateral direction Y and the opposite right side (right side in Fig. 1) is designated as the right side in the lateral direction Y. The vertical direction Z, as a third direction of the vehicle display device 1, usually corresponds to the vehicle's vertical direction in which the vehicle display device 1 is installed and is, for example, a direction along the vertical axis of the vehicle standing on a horizontal plane. Unless otherwise specified, the directions given in the following description indicate the directions in a state in which the corresponding configurations of the vehicle display device 1 are mounted together and the vehicle display device 1 is installed in the instrument panel.

[0012] The vehicle display device 1 of the present invention comprises, for example, a speedometer 2, a tachometer 3, a picture display unit 4, a turn signal display unit 5, etc., as a display unit that shows information about a vehicle. The speedometer 2 shows the vehicle speed. The tachometer 3 shows the output speed of a power source for driving. The picture display unit 4 displays image information. The turn signal display unit 5 indicates an operating state of a turn signal (indicator signal) of the vehicle. The vehicle display device 1 comprises a housing 6 for receiving the corresponding parts, wherein the speedometer 2, the tachometer 3, the picture display unit 4, the turn signal display unit 5, etc., are received in the housing 6, and display areas for various types of information are exposed on the front side in the depth direction X, i.e., towards the side of the viewing position EP.In the vehicle display device 1, the speedometer 2 is arranged on the right side in the latitude direction Y, the tachometer 3 is arranged on the left side in the latitude direction Y, and the image display unit 4 and the direction indicator display unit 5 are arranged between these in the housing 6.

[0013] The speedometer 2 and the tachometer 3 are analog instruments for a vehicle, indicating the vehicle speed and output speed as measured values ​​relative to the vehicle, each using a pointer 7. The speedometer 2 and the tachometer 3 each have a pointer 7 and a scale segment 8. The pointer 7 is bar-shaped and rotates about an axis of rotation C along the depth (axial) direction X as its center of rotation. The scale segment 8 is an indicator segment toward which the pointer 7 points. The speedometer 2 and the tachometer 3 display the vehicle speed and output speed as measured values ​​relative to the vehicle by rotating the pointer 7, driven by a rotating indicator motor in the housing 6, until it points to a specific position on the scale segment 8.For example, a thin liquid crystal display, a plasma display, an organic EL display, or similar can be used as the image display unit 4. The image display unit 4 shows, for example, images of drive information and similar data related to various driving modes, which change from moment to moment while the vehicle is being driven. This includes information such as cumulative mileage, coolant temperature, remaining fuel level, battery charge level, navigation information, map information, various warning lights, and a gear position indicator. The turn signal display unit 5 indicates the operating status of the vehicle's turn signal by intermittently activating a translucent portion that displays design patterns for left and right arrows through the switching on and off of a light source.

[0014] Furthermore, a scale part 8 is configured such that it has a transparent scale 81 and a colored scale 83 and a predetermined shape between them in the vehicle display device 1 of this embodiment as in Fig. 1 and Fig. Figure 2 comprises a configuration in which the light-emitting parts of the transparent scale 81 and the colored scale 83 emit light correctly for a display. The colored scale 83 is red and positioned to indicate a predetermined speed on the scale part 8 of the speedometer 2 (“50 km / h” in the example shown). Fig. 1) is represented. The configuration of the vehicle display device 1 is described in detail below with reference to the drawings.

[0015] As in Fig. 1, Fig. 2 and Fig. As shown in Figure 3, the vehicle display device 1 further comprises a scale disc 9, a push element 10, a light source 11 (indicated by dashed lines in Figure 3). Fig. (1 shown) and a light guide 12. The vehicle display device 1 has a structure in which the housing 6, the light guide 12, the scale disc 9, and the push element 10 are stacked in that order from the back to the front in the depth direction X. The vehicle display device 1 may also include a so-called viewing plate, a transparent cover (front glass), etc., on the front in the depth direction X of the push element 10. Furthermore, the light source 11 and the light guide 12 are held in the housing 6 of the vehicle display device 1. The housing 6 is, for example, made of an insulating synthetic resin material or similar. The housing 6 can be configured, for example, by a combination of a multitude of elements.Various parts of the speedometer 2, the tachometer 3, the image display unit 4, and the direction indicator unit 5, such as the light source 11 and the light guide 12, are mounted on the housing 6 and accommodated in a space provided therein. The housing 6 ensures that the display surfaces for the various types of information in the speedometer 2, the tachometer 3, the image display unit 4, the direction indicator unit 5, etc., are exposed to the front in the depth direction X, i.e., to the side of the viewing position EP, through an opening or similar feature.

[0016] The scale disc 9 has a plate shape with the depth direction X as the plate thickness direction and is a plate-shaped element on which various scales, patterns, symbols, characters, decorative elements, etc., are drawn in accordance with the information to be displayed on the vehicle display device 1 with regard to the vehicle. In the vehicle display device 1, the scale disc 9 also serves as a design element of a part that is exposed to the front in the depth direction X, i.e., to the side of the viewing position EP, and thus can enter the field of vision of occupants, including the driver. For example, the scale disc 9 can be provided separately or integrated in accordance with the respective display areas of the speedometer 2, the tachometer 3, the image display unit 4, and the direction indicator unit 5.The scale disc 9 is located on the viewing position EP side of the housing 6 and is held such that it is enclosed between the housing 6 and the push element 10 with respect to the depth direction X. On the scale disc 9, the portion on which various scales, patterns, symbols, characters, decorative elements, etc., are drawn is exposed on the viewing position EP side of the push element 10 to form a display area for showing various types of information. The pointer 7 described above is located on the front of the scale disc 9 with respect to the depth direction X, i.e., on the viewing position EP side. The scale disc 9 contains, for example, a recessed area corresponding to the aforementioned scales, patterns, symbols, characters, decorative elements, etc.The scale is formed in a translucent base material made of polycarbonate that transmits and scatters at least one visible light spectrum, using a dark ink with light-blocking properties. In this configuration, the aforementioned scales, patterns, symbols, signs, decorative elements, etc., are drawn on the scale 9. The visible light component is light with a wavelength component within the visible light spectrum that can be seen by a human, for example, light with a wavelength component in the range of 360 to 830 nm. The scale 9 is illuminated with light from a light source (other than light source 11) on the back in the depth direction X, thereby illuminating the scales, patterns, symbols, signs, decorative elements, etc.The light is switched on and displayed when the emitted light passes through the area where the scales, patterns, symbols, characters, decorative elements, etc., are drawn. The dark ink with the light-blocking property is not applied in a region of the scale disc 9 between the light guide body 12 described below and the scale part 8 with respect to the depth direction X, this region forming a light scattering area 9a that transmits and scatters light.

[0017] The pressure element 10 is a member that covers an end portion or similar of the scale disc 9 from the front in the depth direction X and holds the scale disc 9 such that it is enclosed between the pressure element 10 and the housing 6. The pressure element 10 is, for example, made of an insulating synthetic resin material or similar. The pressure element 10 is mounted in the housing 6 such that it encloses the scale disc 9 against the housing 6, with the display surface of the various types of information in the speedometer 2, the tachometer 3, the image display unit 4, the direction indicator unit 5, etc., being exposed to the front in the depth direction X, i.e., to the side of the viewing position EP. The pressure elements 10 are provided separately here on the side of the speedometer 2 and the side of the tachometer 3, but the invention is not limited to this and the pressure elements 10 can also be provided in an integrated manner.For example, the push element 10 is integrated with a decorative ring 14 which is essentially ring-shaped and surrounds the corresponding display areas of the speedometer 2 and the tachometer 3.

[0018] The light source 11 is configured to cause the scale portion 8 to emit light. The light source 11 is formed, for example, by an LED element or similar, but is not limited to this. The light source 11 is configured here to emit white light. The light source 11 is positioned on the side opposite the pointer 7 of the scale disc 9 with respect to the depth direction X, i.e., on the back of the scale disc 9. The light source 11 is mounted on a substrate 13 and is controlled. The light source 11, together with the substrate 13, is housed in the casing 6. The light source 11 emits the light, including its visible light components, towards the front in the depth direction X. The direction of radiation of the light through the light source, i.e.,In other words, the direction of the optical axis of the light source 11 is a direction along the depth direction X. A plurality of light sources 11 are provided at intervals along a circular ring around the axis of rotation C with respect to the corresponding scale divisions 8 of the speedometer 2 and the tachometer 3.

[0019] The light guide body 12 is configured to form an optical system into which the light emitted by the light source 11, including the visible light components, enters and is guided to the side of the scale section 8 and emitted. The light guide body 12 is made of a material that transmits the light including the visible light components. For example, the light guide body 12 is made of a synthetic resin material with a translucent property, such as an acrylic resin, and can also be described as a prism. The light guide body 12 has a substantially flat plate shape with the depth direction X being the plate thickness direction. The light guide body 12 is positioned such that it is located in front of the light source 11 with respect to the depth direction X and behind the scale section 9.The light guide body 12 is arranged such that it faces the light source 11 and the scale disc 9 along the depth direction X. The light of the visible light component emitted by the light source 11 enters the back of the light guide body 12 along the depth direction X, and the light guide body 12 directs the incident light to the front along the depth direction X so that it is emitted onto the front along the depth direction X, i.e., the side of the viewing position EP, and in particular onto the side of the scale part 8. The light guide body 12 is held in the housing 6 in a positional relationship such that it faces the light source 11 and the scale disc 9 with respect to the depth direction X.The light guide body 12 is spaced from the scale disk 9 in the state held by the housing 6 with respect to the depth direction (axial direction) X, so that an air layer between the light guide body 12 and the scale disk 9 is ensured.

[0020] Furthermore, the scale part 8 of this embodiment is formed integrally with the decorative ring 14 of the push member 10 described above. In particular, the scale part 8 of this embodiment comprises a base material 80, a transparent scale part 82 in which a plurality of transparent scales 81 are formed integrally, a colored scale 83 and a slotted part 84.

[0021] The base material 80 is made of a synthetic resin material with light-shielding properties to block the light of the visible light spectrum components. The base material 80 is essentially ring-shaped along a rotation point in direction R at a front end of the pointer 7 about a rotation axis C and forms the main part of the decorative ring 14.

[0022] The transparent scale 81 is made of a synthetic resin material that transmits the visible light components and is transparent. The transparent scale 81 forms one of the scales in the scale part 8. The multiple transparent scales 81 are integrated to form the transparent scale part 82. In the transparent scale part 82, the multiple transparent scales 81 are formed in one piece via a connecting part 85. In the example of Fig.In section 3, the transparent scale part 82 is configured such that the four transparent scales 81 are connected via the connecting part 85 within the scale part 8. Furthermore, a plurality of transparent scales 81 are arranged side by side at intervals along the direction of rotation R and extend freely from the base material 80 to the front face in the depth direction X, i.e., to the side of the viewing position EP, within the transparent scale part 82. Each of the transparent scales 81 has a substantially rectangular shape, in which a portion exposed from the base material 80 extends along a direction towards the axis of rotation C. In other words, the plurality of transparent scales 81 are arranged with a substantially radial shape around the axis of rotation C.In the transparent scale section 82, a portion of the base material 80 is arranged between the corresponding transparent scales 81 with respect to the direction of rotation R, such that the transparent scales 81 are exposed independently of the base material 80. Furthermore, the connecting part 85 is arranged on the back side in the depth direction X of the base material 80 in such a way that the plurality of transparent scales 81 are exposed by the base material 80, and is provided in the transparent scale section 82 at a position where it is not visible from the viewing position EP.

[0023] The colored scale 83 is made of a synthetic resin material that transmits the visible light spectrum and is colored. The emission color of the colored scale 83 depends on a specific color. The colored scale 83 is red and emits red light. The colored scale 83 forms one of the scales in the scale part 8. Furthermore, the colored scales 83 are arranged next to the transparent scale part 82 with a gap between them along the direction of rotation R and are free from the base material 80 towards the front in the depth direction X, i.e., towards the side of the viewing position EP. The colored scale 83 is thus provided together with the multiple transparent scales 81 of the transparent scale part 82 and is arranged adjacent to them with a gap along the direction of rotation R.The colored scale 83 is formed with a substantially rectangular shape, with a portion of the base material 80 extending along a direction towards the axis of rotation C. In other words, the colored scale 83 is formed with a substantially radial shape around the axis of rotation C, together with the plurality of transparent scales 81. The colored scale 83 is formed with a substantially rectangular shape that is larger than the transparent scale 81, with a portion of the colored scale 83 extending upwards on the side of the axis of rotation C towards an inclined surface on the base material 80. A portion of the base material 80 is arranged between the colored scale 83 and the transparent scale portions 82 on both sides of the same with respect to the direction of rotation R, such that the colored scale 83 is exposed by the base material 80 independently of the transparent scales 81.

[0024] The slotted portion 84 is positioned between the transparent scale portion 82 and the colored scale 83 with respect to the direction of rotation R. The slotted portion 84 is located on the rear side in the depth direction X of the base material 80 and is designed to intersect the edges of the transparent scale portion 82 and the colored scale 83 with respect to the direction of rotation R. The slotted portions 84 are positioned on both sides of the colored scale 83 with respect to the direction of rotation R, intersecting the edges of the transparent scale portions 82 on both sides of the colored scale 83 in the direction of rotation R. The slotted portions 84 extend upwards towards the base material 80 in the depth direction X.

[0025] In the scale part 8 with the configuration described above, the transparent scale part 82 and the colored scale part 83 are cast, for example, in two colors. Each of the slotted parts 84 is formed by a portion of a mold located between the transparent scale part 82 and the colored scale 83 with respect to the direction of rotation R in the scale part 8. The scale part 8 is then cast as a whole, with the entire die-cast part 10, including the base material 80 with the integrated transparent scale part 82 and the integrated colored scale 83, being cast in place.

[0026] In the vehicle display device 1 with the configuration described above, the light with the visible light spectrum components emitted by the light source 11 strikes a surface of the light guide body 12 on the rear side in the depth direction X, is guided within the light guide body 12 to the front side in the depth direction X, and is emitted to the front side in the depth direction X from a surface of the light guide body 12 on the front side in the depth direction X. Furthermore, the light emitted from the light guide body 12 to the front side in the depth direction X is scattered by the light scattering area 9a of the scale disc 9, with the scattered light striking the rear side in the depth direction X of the transparent scale section 82 and the colored scale 83 of the scale section 8 in the vehicle display device 1.Furthermore, the light incident on the transparent scale part 82 and the colored scale 83 is emitted from the front side of the viewing position EP in the depth direction X of the transparent scale 81 and the colored scale 83 in the vehicle display device 1. As a result, the vehicle display device 1 can cause both the transparent scale 81 and the colored scale 83 to emit light and be displayed as the light-emitting part with the light from the visible light spectrum components of the light source 11. Both the transparent scale 81 and the colored scale 83 emit light with corresponding emission colors, with the transparent scale 81 emitting white light and the colored scale 83 emitting red light.

[0027] The vehicle display device 1 indicates the measured value relative to the vehicle, as described above, by pointing the pointer 7 at the scale section 8. The scale section 8 comprises the transparent scale section 82, in which the plurality of transparent scales 81 are integrated, and the colored scale 83. Furthermore, the scale section 8 is configured such that the plurality of transparent scales 81 are arranged side by side at intervals along the direction of rotation R of the pointer 7 within the transparent scale section 82 and are exposed from the base material 80, and that the colored scale 83 is arranged next to the transparent scale section 82 at a interval along the direction of rotation R and is exposed from the base material 80.In such a configuration, the slotted portion 84 is positioned between the transparent scale portion 82 and the colored scale 83 with respect to the direction of rotation R in the scale portion 8, so that both the transparent scale 81 and the colored scale 83 can emit light and be displayed with the correct emission colors without being affected by each other's emission colors. The slotted portion 84 prevents any part of the colored scale 83 from being reflected onto the side of the transparent scale 81. In other words, a configuration can be provided in which a line of sight from the viewing position EP barely extends through the transparent scale 81 to the colored scale 83.Furthermore, the vehicle display device 1 can reliably prevent the transparent scale part 82 and the colored scale 83 from being mixed because part of the mold is positioned in an area forming the slot part 84 between the transparent scale part 82 and the colored scale 83 during the casting of the transparent scale part 82 and the colored scale 83. In this way, the vehicle display device 1 can cause the transparent scale 81 and the colored scale 83 to emit light with the correct emission colors without being affected by each other. Therefore, the vehicle display device 1 can ensure that the scale part 8, as the light-emitting part, emits the light correctly.

[0028] The vehicle display device of the invention is not limited to the embodiment described above, which can be modified in various ways without thereby departing from the scope of the invention.

[0029] In the embodiment described above, the colored scale 83 is red and is located in the position representing "50 km / h" in the scale part 8 of the speedometer 2, although the invention is not limited to this and the colored scale 83 may, for example, also have a different color.

[0030] A vehicle display device according to the invention indicates a measured value with respect to the vehicle by pointing a pointer at a scale section. The scale section comprises a transparent scale section in which a plurality of transparent scales are integrated, and a colored scale. Furthermore, the scale section is configured such that the plurality of transparent scales are arranged side by side at intervals along the direction of rotation of the pointer within the transparent scale section and are exposed from the base material. The colored scale is arranged next to the transparent scale section at intervals along the direction of rotation and is also exposed from the base material.In this configuration, a slot is positioned between the transparent and colored scale sections, oriented in the direction of rotation, allowing both the transparent and colored scales to emit light and display their correct emission colors without interference from each other. This enables the vehicle display device to ensure that the scale section, as the light-emitting part, emits light correctly.

[0031] The invention has been described in detail above with reference to specific embodiments, but the invention defined by the following claims is not limited thereto and includes various modifications and alternative designs.

Claims

[1] Vehicle display device (1), comprising: a pointer (7) which rotates about a rotation axis (C) as a center of rotation, and a scale part (8) to which the pointer (7) points, wherein the scale part (8) comprises: a base material (80) that shields light of a visible light spectrum component, a transparent scale part (82) in which a plurality of transparent scales (81) which transmit the light of the visible light component are integrated, wherein the plurality of transparent scales (81) are arranged next to each other at intervals along a direction of rotation of the pointer (7) and are exposed from the base material (80), a colored scale (83) which transmits light of the visible light component and is colored, wherein the colored scale (83) is arranged next to the transparent scale part (82) at a distance along the direction of rotation and is exposed from the base material (80), and a slot (84) which is arranged between the transparent scale part (82) and the colored scale (83) with respect to the direction of rotation, wherein the slot (84) is positioned on a back side of the base material (80) and extends to the base material (80) in a depth direction (X), wherein the back side of the base material (80) is a side opposite a viewing position side (EP) in the depth direction (X), and the scale part (8) is illuminated with light from a light source (11) on the back in the depth direction (X), and the transparent scale part (81) and the colored scale part (83) emit light due to the incident light.

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