JP2007066664A - Operation panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure visibility of an operation knob while making a mark visible by one light source in an operation panel provided with the operation knob and an operation display part to display the mark. <P>SOLUTION: The operation panel 1 is provided with the operation knob 2 to operate a prescribed device 16 and the operation display part 3 which is arranged neighboring the operation knob 2 and which displays the mark 31 showing an operation content of the operation knob 2. The operation display part 3 is provided with a diffusion member 32 in which the mark 31 is formed and with a light source 33 arranged behind the diffusion member 32. The diffusion member 32 displays the mark 31 by being transmitted and illuminated by a part of the light emitted from the light source 33, diffuses the remaining part of this light and illuminates a side face of the operation knob 2 by this diffused light. By this, while the mark is made visible by one light source, the visibility of the operation knob can be secured. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an operation panel including an operation knob for operating a predetermined device and an operation display unit for displaying a mark indicating the operation content, and is suitable for an operation panel attached to an instrument panel of an automobile. It is.

  2. Description of the Related Art Conventionally, an operation panel in which a plurality of operation knobs for operating an air conditioner or the like of a passenger compartment are assembled is installed on an instrument panel of an automobile.

  In order to improve nighttime appearance and improve visibility of the operation knob in an operation panel in which a plurality of operation knobs (including a switch knob) for operating an air conditioner or the like of an automobile are assembled. The following configuration is proposed (see Patent Document 1).

That is, the translucent plate is superimposed on the margin of the operation knob on the front surface of the operation panel, and light from the light source provided near the translucent plate side end is transmitted from the side end of the translucent plate to the translucent plate. It enters the light and diffuses into the translucent plate. The diffused light in the translucent plate illuminates the margin of the surface of the operation panel, improving the appearance at night. Furthermore, the side of the operation knob is illuminated by the light diffused in the translucent plate, thereby improving the visibility of the operation knob at night.
JP-A-2005-112170

  However, in patent document 1, the mark which shows the operation content of each operation knob is formed in the front surface of each operation knob, and another light source is required in order to transmit this.

  The present invention has been made in view of the above-described problems. In an operation panel including an operation knob for operating a predetermined device and an operation display unit for displaying a mark indicating the operation content of the operation knob, one light source is provided. The purpose of this is to ensure the visibility of the operation knob while making the mark visible.

  In order to achieve the above object, the present invention employs the following technical means.

  The operation panel according to claim 1 includes an operation knob that operates a predetermined device, and an operation display unit that is arranged adjacent to the operation knob and displays a mark indicating the operation content of the operation knob. Includes a diffusing member on which a mark is formed and a light source disposed behind the diffusing member, and the diffusing member is transmitted and illuminated by a part of the light emitted from the light source to display the mark. The remaining part is diffused, and the side surface of the operation knob is illuminated by this diffused light.

  In this configuration, the diffusion member on which the mark is formed is transmitted and illuminated by a part of the light emitted from the light source, and the side surface of the operation knob is illuminated by the diffused light that diffuses the remaining part of the light. Thereby, the visibility of the operation knob can be ensured while the mark is visually recognized by one light source.

  The operation panel according to claim 2 is configured such that the diffusing member has an achromatic or chromatic color tone.

  Even with this configuration, the above-described effects can be obtained. When the diffusing member has a chromatic color tone (lightness, hue, saturation), the appearance of the operation panel can be further improved.

  The operation panel according to claim 3 includes a translucent member disposed between a side surface of the operation knob and a side surface of the diffusing member, and the diffusing member illuminates the translucent member with its own diffused light. In addition, the side surface of the operation knob is illuminated through the translucent member.

  In this configuration, the diffusing member illuminates the side surface of the operation knob through the translucent member and also illuminates the translucent member. Thereby, in addition to the above-mentioned effect, the appearance of the operation panel can be further improved.

  The operation panel according to claim 4 is configured such that the translucent member has a reflection portion on the back surface side that reflects at least a part of the diffused light of the diffusing member to the side surface of the operation knob.

  In this configuration, since the reflection part that reflects the diffused light of the diffusing member to the side surface of the operation knob is formed on the back surface side of the translucent member, the illumination intensity on the side surface of the operation knob can be improved. As a result, the visibility of the operation knob can be further ensured.

  The operation panel according to claim 5 is configured such that the translucent member is formed to cover the front surface of the diffusing member.

  In this configuration, since the translucent member covers the front surface of the diffusing member, in addition to the above-described effects, a sense of depth can be obtained in the display of the mark, and the appearance of the operation panel can be further improved.

  The operation panel according to claim 6 is configured such that the translucent member has one color tone of an achromatic color and a chromatic color.

  Even with this configuration, the above-described effects can be obtained. When the translucent member has a chromatic color tone, the appearance of the operation panel can be further improved.

  The operation panel according to claim 7 is configured such that the translucent member is colorless and transparent.

  In this configuration, since the translucent member is colorless and transparent, the illumination intensity on the side surface of the operation knob can be improved. As a result, the visibility of the operation knob can be further ensured.

  The operation panel according to claim 8 is configured such that the translucent member has a property of diffusing light guided to the inside thereof.

  In this structure, since the translucent member has light diffusibility, the illumination intensity of the translucent member can be improved. Thereby, the contrast of a translucent member and an operation knob is emphasized more, and the visibility of an operation knob can be ensured more.

  The operation panel according to claim 9 is a translucent plate in which the mark is formed on the front surface of the diffusing member, and the translucent member is formed on the front side of the operation panel, behind the translucent member. An operation knob is disposed so as to penetrate the first opening of the panel base and the opening of the translucent member, and the diffusion member is disposed so as to penetrate the second opening of the panel base. The panel base has a reflection portion on its front surface, and the reflection portion reflects at least a part of the diffused light of the diffusion member to the side surface of the operation knob through the translucent member.

  In this configuration, the reflection part of the panel base reflects at least a part of the diffused light of the diffusing member to the side surface of the operation knob through the translucent member. For this reason, the illumination intensity of the side surface of the operation knob can be improved, and thereby the visibility of the operation knob can be further ensured.

  The operation panel according to claim 10 is configured such that the translucent member is fixed to the panel base.

  With this configuration, the above-described effect in which the translucent member is fixed to the panel base can be obtained with a simple configuration.

  An operation panel according to an eleventh aspect is configured such that the reflection portion of the panel base includes a silver reflection surface or a white reflection surface.

  In this configuration, since the reflective portion of the panel base is composed of a silver reflective surface or a white reflective surface, the reflection efficiency is high, and the illumination intensity on the side surface of the operation knob can be improved. As a result, the visibility of the operation knob can be further ensured.

  According to a twelfth aspect of the present invention, the panel base reflecting portion is a chromatic reflecting surface.

  In this configuration, the appearance of the operation panel can be further improved because the reflective portion of the panel base is a chromatic reflection surface.

  Hereinafter, a case where the operation panel according to the present invention is applied to an operation panel of an air conditioner (car air conditioner) or the like will be described with reference to the drawings.

(Constitution)
FIG. 1 is a plan view of an operation panel 1 according to an embodiment of the present invention.

  2 is a cross-sectional view taken along line II-II in FIG.

  FIG. 3 is an enlarged cross-sectional view of a portion III in FIG.

  FIG. 4 is a circuit configuration diagram illustrating an electrical circuit configuration of operation panel 1 shown in FIG.

  An operation panel 1 shown in FIG. 1 is disposed at the center in the vehicle width direction of an instrument panel provided on the front surface of the passenger compartment of the automobile. The operation panel 1 includes a plurality of operation knobs 2 for operating an air conditioner (car air conditioner), which is a predetermined device, and an operation display unit 3 for displaying a mark 31 indicating the operation content of the operation knob 2. Arranged together.

  A dial knob 4 for setting the temperature of the air conditioning is disposed at the center position of the operation panel 1. On the outer periphery of the dial knob 4, a decoration ring 10c in which the scale of the dial knob 4 is formed is disposed. A black face-like black panel portion 11 is formed on both sides of the dial knob 4 and the decorative ring 10c on the outer periphery thereof in the left-right direction indicated by the arrows in FIG. A display device 5 for displaying the setting state is arranged.

  The operation knob 2 disposed on the upper side indicated by the arrow in FIG. 1 with respect to the dial knob 4 switches the air conditioning fan off (off), auto air conditioning on / off, and outside air introduction or inside air circulation from the left side. Two operation knobs 2 are provided in the lateral direction. An operation display unit 3 for displaying a mark 31 indicating the operation content of each operation knob 2 is provided adjacent to the lower side of each of the three operation knobs 2 and connected in the lateral direction.

  At the positions on the left and right sides of the three operation knobs 2 and the three operation display units 3, a passenger seat seat belt display unit 61 and a hazard lamp switch 62 are arranged.

  The operation knob 2 disposed below the dial knob 4 indicated by the arrow in FIG. 1 performs front defroster on / off, rear defroster on / off adjustment, air conditioning fan strength adjustment, mode change and air conditioner on / off from the left side. Five operation knobs 2 are connected in the horizontal direction. An operation display unit 3 for displaying a mark 31 indicating the operation content of each operation knob 2 is provided adjacent to the upper side of each of the five operation knobs 2 and connected in the lateral direction.

  A panel 10 forming a margin around each operation knob 2, each operation display section 3, dial knob 4, display device 5 and the like is overlapped with a panel base 13 shown in FIG. And a translucent plate 12 which is a translucent member provided. The panel base 13 is formed of acrylonitrile / butadiene / styrene (ABS) resin or the like, and is coated with a silver surface having a high reflectance. The translucent plate 12 is formed of a transparent polycarbonate resin, an acrylic resin, or the like.

  In addition, in order to make FIG. 2 easy to see, the decoration ring 10c is omitted in FIG.

  The distal end portion (operating portion) of the dial knob 4 passes through an opening 10a formed in the panel 10 and protrudes to the front side of the panel 10 (the upper side indicated by the arrow in FIG. 2).

  A dial switch 42 for setting the air conditioning temperature is provided behind the dial knob 4 (the lower side indicated by the arrow in FIG. 2). The dial knob 4 is attached to the tip of the dial shaft 41 extending from the dial switch 42. Fixed. Thereby, the rotation operation of the dial knob 4 is transmitted to the dial switch 42 via the dial shaft 41, and the temperature setting of the air conditioning is performed.

  Each operation knob 2 penetrates the opening 10b formed in the panel 10 and protrudes to the front side of the panel 10 (the upper side indicated by the arrow in FIG. 2). Specifically, the operation knob 2 passes through the first opening 13a of the panel base 13 and the opening 12a of the translucent plate 12, and protrudes to the front side of the panel 10 (upper side indicated by the arrow in FIG. 3). That is, the opening 10 b of the panel 10 is constituted by the first opening 13 a of the panel base 13 and the opening 12 a of the translucent plate 12.

  On the back side of each operation knob 2 made of ABS resin or the like, an operation switch 24 for performing each operation is provided, and when the operation knob 2 is pushed downward, the extension switch 23 of the operation knob 2 is operated by the operation switch 24. Provided to be operated.

  Further, a light emitting diode 22 for notifying that an operation is being performed is provided behind each operation knob 2, and is configured to light up when the operation switch 24 is operated. The light guide member 21 formed of a transparent acrylic resin or the like is provided so as to penetrate the central portion of the operation knob 2, and guides light from the light emitting diode 33 so that the tip side thereof is lit and displayed.

  Hereinafter, the structure around the operation display unit 3 which is a feature of the present invention will be described in detail.

  The operation display unit 3 includes a diffusing member 32 having a mark 31 formed on the front surface, and a light-emitting diode 33 that is a light source disposed behind the diffusing member 32. As shown in FIGS. 2 and 3, the diffusing member 32 is disposed so as to penetrate through the second opening 13 b of the panel base 13 and enter the recess 12 c of the translucent plate 12.

  The diffusing member 32 is formed by mixing fine powder for light diffusion into a transparent acrylic resin or the like, and has a so-called milky white color tone (lightness, hue, saturation). The diffusion member 32 transmits a part of the light emitted from the light emitting diode 33 and diffuses the remaining part.

  The diffusing member 32 is transmitted and illuminated by part of the light emitted from the light emitting diode 33, and illuminates the side surface of the operation knob 2 through the translucent plate 12 with its own diffused light. At this time, the diffusing member 32 also causes the translucent plate 12 to illuminate the surface with its own diffused light. That is, the light emitted from the light emitting diode 33 indirectly illuminates the side surface of the operation knob 2 and the translucent plate 12 by the diffusion member 32.

  As described above, in FIG. 1, on the upper side of the dial knob 4, the three operation display units 3 are provided so as to be connected in the horizontal direction. One diffusion member 32 is formed as the three operation display units 3. On the lower side of the dial knob 4, the five operation display units 3 are connected in the horizontal direction.

  A plurality of separate diffusing members 32 may be formed as the plurality of operation display units 3 provided in a connected manner.

  On the back surface of the translucent plate 12, the translucent member forms a textured surface 12 b that is a reflection part that reflects at least part of the diffused light of the diffusing member 32 to the side surface of the operation knob 2. The embossed surface 12b is a surface on which minute irregularities are formed, and is formed at the same time when the translucent plate 12 is resin-molded.

  The inner surface of the reflector 14 is formed of white or the like having a high reflectance, and guides light from the light emitting diode 33 to the diffusing member 32. A circuit board 7 constituting the circuit unit of the operation panel 1 is disposed below the reflector 14. The light emitting diodes 22 and 33, the operation switch 24, and the dial switch 42 are mounted on the circuit board 7.

  The diffusion member 32 is fixed to the panel base 13 by being sandwiched between the panel base 13 and the reflector 14. Instead of this fixing method, the diffusing member 32 can be fixed to the panel base 13 by hooking, heat caulking, adhesion or the like. Moreover, the panel base 13 and the reflector 14 can be integrally formed by resin molding.

  The electric circuit configuration of the operation panel 1 according to the present embodiment described above will be described with reference to FIG.

  Power is always supplied from the battery 19 to the control device 15 composed of a microcomputer or the like, and an ignition switch 18 is connected so as to detect its operation position (off position, on position).

  A light control switch 17 is connected to the control device 15 so as to detect its operation position (off position, small headlamp position). In the off position, the vehicle width light, tail light and headlight are all turned off. ing.

  The control device 15 is connected to the light emitting diodes 22 and 33, and the operation switch 24 and the dial switch 42 are connected so as to be able to input these operation signals. The air conditioner 16 is connected to the control device 15 so as to be controlled by the control device 15 in accordance with operation signals from the operation switch 24 and the dial switch 42.

(Operation)
The operation of the operation panel 1 according to the embodiment of the present invention configured as described above will be described.

  When the ignition switch 18 is turned on, in FIG. 4, the control device 15 detects it and starts operation. That is, the control device 15 controls the air conditioner 16 based on operation signals from the operation switch 24 and the dial switch 42.

  When the surroundings of the vehicle are bright, such as in the daytime, the light control switch 17 is operated in an off-position, and the vehicle width lamp, tail lamp, and headlamp are all turned off. With this off-position, the control device 15 turns off the light-emitting diode 33.

  On the other hand, when the surroundings of the vehicle are dark, such as at sunset, or when the surroundings of the vehicle are dark, such as at night, the light control switch 17 is operated to the small headlamp position, and only the vehicle width lamp and tail lamp are lit. Or the vehicle width light, tail light and headlight are all turned on.

  At this small headlamp position, the control device 15 turns on the light emitting diode 33.

  Hereinafter, the visual recognition state around the operation display unit 3 when the light emitting diode 33 is turned on will be described.

  The light emitted from the light emitting diode 33 is guided into the diffusing member 32 by the reflector 14 along the optical path P as shown in FIGS. The diffusing member 32 is transmitted and illuminated by the light of the optical path P1 which is a part of the light guided into the diffusing member 32, and displays the mark 31. In other words, the light emitted from the light emitting diode 33 directly illuminates the diffusing member 32 (transmission illumination). Thereby, since the mark 31 is displayed by the directly transmitted light with which stable luminance is obtained, the visibility of the mark 31 can be reliably ensured.

  On the other hand, the remaining part of the light guided into the diffusing member 32 is diffused, and the diffused light in the optical paths P2 and P12 is guided to the side surface of the operation knob 2 through the translucent plate 12. Specifically, the diffused light of the optical path P2 is guided to the side surface of the operation knob 2 through the translucent plate 12, but the diffused light of the optical path P1 is reflected by the embossed surface 12b of the translucent plate 12, and the optical path P12. The diffused light is guided to the side surface of the operation knob 2. The diffused light in the optical paths P2 and P12 is reflected by the side surface of the operation knob 2 according to the optical path P13 to illuminate it.

  That is, the light emitted from the light emitting diode 33 indirectly illuminates the side surface of the operation knob 2 by the diffusing member 32. Thereby, the outline of the operation knob 2 is emphasized, and the visibility of the operation knob 2 is ensured.

  As a result, the visibility of the operation knob 2 can be ensured while the mark 31 is visually recognized by one light emitting diode 33 at night.

  In FIG. 3, the light on the optical path P <b> 13 has been described as reflected light from the side surface of the operation knob 2, but also includes reflected light from the inner side surface of the opening 12 a of the translucent plate 12.

  Further, part of the diffused light in the optical path P1 is reflected by the textured surface 12b of the translucent plate 12, and is guided to the front surface of the translucent plate 12 as diffused light in the optical path P11. Thereby, the translucent plate 12 is also surface-illuminated. That is, in FIG. 1, the panel 10 is surface-illuminated around each operation display unit 3. In addition to this, since the panel 10 can produce a sense of transparency and depth by the translucent plate 12, the appearance of the operation panel 1 can be improved.

  The diffused light in the optical paths P11 and P12 has been described as reflected light from the embossed surface 12b of the translucent plate 12, but reflected light from the front surface of the panel base 13 (the upper surface indicated by the arrow in FIG. 3) Including.

  On the other hand, when the operation knob 2 is pushed downward (that is, operated), the operation switch 24 is pushed downward by the extending portion 23 of the operation knob 2 to be turned on. Accordingly, the operation content indicated by the mark 31 is activated in the air conditioner 16. At this time, the light-emitting diode 22 is turned on, and the light emitted from the light-emitting diode 22 is guided to the light guide member 21 along the optical path Q, and the tip side thereof is lit and displayed. Thereby, it is possible to notify the viewer that the operation content indicated by the mark 31 is operating.

  The operation panel 1 according to the embodiment of the present invention described above includes the operation knob 2 for operating the air conditioner 16 as a predetermined device, and a mark that is disposed adjacent to the operation knob 2 and indicates the operation content of the operation knob 2. The operation display unit 3 includes a diffusing member 32 on which the mark 31 is formed, and a light emitting diode 33 that is a light source disposed behind the diffusing member 32. 32 is transmitted and illuminated by a part of the light emitted from the light emitting diode 33 to display the mark 31, and the remaining part of the light is diffused, and the side surface of the operation knob 2 is illuminated by the diffused light.

  Thereby, the visibility of the operation knob 2 can be ensured while the mark 31 is visually recognized by one light source.

(Modification)
FIG. 5 is a cross-sectional view showing a first modification of FIG.

  In the first modification, unlike the example shown in FIG. 3 described above, the mark 31 is formed not on the diffusing member 32 but on the translucent plate 12 as shown in FIG.

  Even in the first modification, the above-described effects can be obtained.

  FIG. 6 is a cross-sectional view showing a second modification of FIG.

  In the example shown in FIG. 3 described above, the diffusing member 32 is arranged so as to sink into the recess 12 c of the light transmissive plate 12 as shown in FIG. 3, and the front surface of the diffusing member 32 is covered by the light transmissive plate 12. Has been.

  On the other hand, in the second modification, as shown in FIG. 6, the concave portion 12c of the translucent plate 12 is formed as the opening 12c, and the front surface of the diffusing member 32 is exposed from the opening 12c. That is, the front surface of the diffusing member 32 is not covered by the translucent plate 12.

  Even in the second modification, the above-described effects can be obtained.

  Note that the color tone (brightness, hue, saturation) of the diffusing member 32 need not be limited to an achromatic color (a color that does not have a white or gray hue), but a chromatic color (a color having a hue such as red or yellow). It can be. Thereby, the appearance of the operation panel 1 can be further improved.

  In addition, a reflective layer can be formed instead of the embossed surface 12 b of the translucent plate 12.

  Moreover, the translucent plate 12 does not need to be limited to colorless and transparent, and can be a chromatic color having translucency. Thereby, the appearance of the operation panel 1 can be further improved.

  Moreover, the translucent plate 12 can have a property of diffusing light guided to the inside thereof. Thereby, since the illumination intensity | strength of the translucent plate 12 can be improved, the contrast of the translucent plate 12 and the operation knob 2 is emphasized more, and the visibility of the operation knob 2 can be ensured more.

  Further, the panel base 13 can be white instead of silver. If the reflection efficiency of the front surface of the panel base 13 is high, white or other colors can be used instead of silver. Thereby, the above-mentioned effect can be acquired.

  Moreover, the color tone of the panel base 13 does not need to be limited to an achromatic color, and can be a chromatic color. Thereby, the appearance of the operation panel 1 can be further improved.

  The lighting of the light emitting diode 33 does not need to be interlocked with the light control switch 17, and a self-light emitting operation panel that turns on the light emitting diode 33 when the ignition switch 18 is turned on can be obtained.

  Further, it is not necessary to limit the translucent plate 12 to be disposed between the side surface of the operation knob 2 and the side surface of the diffusion member 32. That is, the diffused light of the diffusing member 32 can be configured to illuminate the side surface of the operation knob 2 directly (without passing through the translucent plate 12).

  Moreover, it is not necessary to limit the operation panel 1 for vehicles.

  As described above, the feature of the instrument display board according to the present invention includes an operation knob for operating a predetermined device, and an operation display unit that is arranged adjacent to the operation knob and displays a mark indicating the operation content of the operation knob. The operation display unit includes a diffusing member on which a mark is formed and a light source disposed behind the diffusing member, and the diffusing member is transmitted and illuminated by a part of the light emitted from the light source, and displays the mark. The remaining part of the light is diffused and the side surface of the operation knob is illuminated by the diffused light.

  As long as this feature is satisfied, various modifications are possible without being limited to the above-described examples.

FIG. 1 is a plan view of an operation panel 1 according to an embodiment of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is an enlarged cross-sectional view of a portion III in FIG. FIG. 4 is a circuit configuration diagram illustrating an electrical circuit configuration of operation panel 1 shown in FIG. FIG. 5 is a cross-sectional view showing a first modification of FIG. FIG. 6 is a cross-sectional view showing a second modification of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation panel, 2 Operation knob, 21 Light guide member 22 Light emitting diode, 23 Extension part, 24 Operation switch 3 Operation display part, 31 Mark, 32 Diffusing member, 33 Light emitting diode (light source)
4 Dial knob, 41 Dial shaft, 42 Dial switch 5 Display device, 61 Seat belt display section, 62 Hazard lamp switch 7 Circuit board, 10 panel, 10a opening, 10b opening, 10c decoration ring 11 Black panel section 12 Translucent Plate (translucent member), 12a Opening 12b Textured surface (reflective part), 12c Recessed part (opening)
13 Panel base, 13a 1st opening, 13b 2nd opening, 14 Reflector 15 Control device, 16 Air conditioner (device), 17 Light control switch 18 Ignition switch, 19 Battery

Claims (12)

An operation knob for operating a predetermined device;
An operation display unit arranged adjacent to the operation knob and displaying a mark indicating the operation content of the operation knob;
The operation display unit includes a diffusion member on which the mark is formed, and a light source disposed behind the diffusion member,
The diffusing member is transmitted and illuminated by a part of the light emitted from the light source to display the mark, diffuses the remaining part of the light, and illuminates the side surface of the operation knob with the diffused light. Operation panel.   The operation panel according to claim 1, wherein the diffusing member has an achromatic or chromatic color tone. A translucent member disposed between the side surface of the operation knob and the side surface of the diffusion member;
The diffusing member illuminates the translucent member with the diffused light of itself, and illuminates the side surface of the operation knob through the translucent member. The operation panel described.   4. The operation panel according to claim 3, wherein the translucent member has a reflection part on a back surface side that reflects at least a part of the diffused light of the diffusion member to the side surface of the operation knob.   The operation panel according to claim 3, wherein the translucent member is formed so as to cover a front surface of the diffusing member.   The operation panel according to claim 3, wherein the translucent member has one of an achromatic color and a chromatic color.   The operation panel according to claim 3, wherein the translucent member is colorless and transparent.   The operation panel according to claim 3, wherein the translucent member has a property of diffusing light guided to the inside thereof. The mark is formed on the front surface of the diffusion member,
The translucent member is a translucent plate formed on the front side of the operation panel,
A panel base disposed behind the translucent member;
The operation knob is disposed so as to penetrate the first opening of the panel base and the opening of the translucent member,
The diffusion member is disposed so as to penetrate the second opening of the panel base,
The panel base has a reflecting portion on its front surface,
The said reflection part reflects at least one part of the said diffused light of the said diffusion member to the said side surface of the said operation knob through the said translucent member, The said any one of Claim 3 thru | or 8 characterized by the above-mentioned. The operation panel described in 1.   The operation panel according to claim 9, wherein the diffusion member is fixed to the panel base.   The operation panel according to claim 9 or 10, wherein the reflection portion of the panel base is configured by a silver reflection surface or a white reflection surface.   The operation panel according to claim 9 or 10, wherein the reflection portion of the panel base is a chromatic reflection surface.

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