JP2018101609A - Switching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching device with an operation part superior in display switching performance.SOLUTION: A switching device comprises: an operation part 10 for switching an action state in a switch part; a first information-display part 20 provided on the operation part 10, which displays information when exposed to light having a first polarized light direction; a second information-display part 30 provided so as to partially overlap with the first information-display part 20 in the operation part 10, which displays information when exposed to light having a second polarized light direction different from the first polarized light direction; a first light-emitting part 40 for emitting light through a polarizing plate having the first polarized light direction; a second light-emitting part 50 for emitting light through the polarizing plate having the second polarized light direction; and a reflective part 65 for reflecting the first polarized light or second polarized light toward a direction of the first light-emitting part 40 or the second light-emitting part 50, which is in a space region located out of a route of light from the first light-emitting part 40 to the first information-display part 20, and a route of light from the second light-emitting part 50 to the second information-display part 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a switch device, and more particularly, to a switch device including an operation unit capable of switching display.

  As a conventional technique, two light sources that are arranged in a case partitioned by a partition and emit light having different polarization directions, two polarizing plates that pass each of light in the polarization direction from each light source, and each polarization A display switching device that includes an information display plate that is formed of a polarizing plate having each polarization direction of light that has passed through the plate and that forms a pattern as information to be presented, and that switches information to be presented by switching light emitted. It is known (see, for example, Patent Document 1).

  According to this display switching device, it is possible to switch display of different graphics, etc., so that the space on the display surface can be reduced, and a clear display can be achieved with a simple configuration compared to a conventional display switching lamp for the same purpose. It is supposed to be obtained.

Japanese Utility Model Publication No. 61-25002

  However, in the display switching device of Patent Document 1, since the light source is disposed in the case partitioned by the partition walls, the polarization characteristics change when the emitted light hits the partition walls. As a result, there is a problem that information other than the information to be presented is presented.

  Accordingly, an object of the present invention is to provide a switch device including an operation unit having excellent display switching performance.

[1] In order to achieve the above object, an operation unit that switches an operation state in the switch unit, and a first unit that is provided in the operation unit and presents information by being irradiated with a first polarized light having a first polarization direction. The first information presentation unit and the operation unit are provided so as to partially overlap the first information presentation unit, and the second polarized light having a second polarization direction different from the first polarization direction is emitted. A second information presentation unit for presenting information, a first light emitting unit for irradiating the first polarized light via a polarizing plate having the first polarization direction, and the second polarization direction. A second light emitting unit configured to irradiate the second polarized light via a polarizing plate; a path of the first polarized light from the first light emitting unit to the first information presenting unit; and the second light emitting unit from the second light emitting unit. A space deviating from the path of the second polarization to the second information presentation unit The area, to provide a switch device and a reflection portion configured to reflect the first polarized light or the second polarized light in the direction of the first light emitting portion or said second light-emitting portion.

[2] In each of the first information presentation unit and the second information presentation unit, a polarization unit having a corresponding polarization direction and a polarization direction in each of the polarization units are canceled, and information to be presented is displayed. The switch device according to [1], in which the information to be presented is shared in part in the presentation unit.

[3] The switch unit according to [1] or [2] above, wherein the reflection unit includes a plurality of reflection surfaces.

[4] The switch unit according to any one of [1] to [3], wherein the reflection section has a plurality of reflection surfaces in a bellows shape.

[5] In addition, the switch unit is disposed at an end of a cylindrical case, and the operation unit moves along an axial direction of the case to switch an operation state in the switch unit. To the switch device according to any one of [4].

  According to the switch device of the present invention, it is possible to provide a switch device including an operation unit having excellent display switching performance.

FIG. 1A is a top plan view of the switch device according to the embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along the line AA of FIG. 2A (a) is an upper plan view of the first information presentation unit in the first embodiment, FIG. 2A (b) is a sectional view of FIG. 2A (a), and FIG. 2A (c) is second information. FIG. 2A (d) is a cross-sectional view of FIG. 2A (c). 2B (a) is an upper plan view of the first information presentation unit in the second embodiment, FIG. 2B (b) is a cross-sectional view of FIG. 2B (a), and FIG. 2B (c) is second information. 2B (d) is a cross-sectional view of FIG. 2B (c). 3A is a diagram showing the relationship between the path of light emitted from the first light emitting unit and the reflecting unit, and FIG. 3B is a detailed enlarged view of the reflecting unit, and FIG. These are the fragmentary sectional views of the reflective part which show a modification. 4A is an upper plan view showing a state in which the first display mark portion is displayed when the first light emitting portion is caused to emit light, and FIG. 4B is a diagram illustrating light emitted from the first light emitting portion. It is sectional drawing which shows this path | route. FIG. 5A is an upper plan view showing a state in which the second display mark portion is displayed when the second light emitting portion is caused to emit light, and FIG. 5B is a diagram illustrating light emitted from the second light emitting portion. It is sectional drawing which shows this path | route. FIG. 6 is a cross-sectional view showing a light path in the case of the prior art.

(First embodiment of the present invention)
The switch device 1 according to the embodiment of the present invention is provided with an operation unit 10 that switches an operation state in the switch unit, and the operation unit 10, and presents information by being irradiated with light having a first polarization direction. The first information presentation unit 20 and the operation unit 10 are provided so as to partially overlap the first information presentation unit 20, and are irradiated with light having a second polarization direction different from the first polarization direction. Light is transmitted through a second information presentation unit 30 that presents information, a first light emitting unit 40 that emits light through a polarizing plate having a first polarization direction, and a polarizing plate that has a second polarization direction. The second light emitting unit 50 that emits light, and the light path from the first light emitting unit 40 to the first information presentation unit 20 and the light path from the second light emitting unit 50 to the second information presentation unit 30 are deviated. In a region on the space, the first light emitting unit 40 or the second light emitting unit 5 And it is configured to include a reflection portion 65, the to reflect the direction the first polarized light or the second polarized light.

(Operation unit 10)
As shown in FIGS. 1A and 1B, the operation unit 10 includes a knob unit 11 that is pressed, a diffusion plate 15 that is attached to the knob unit 11, a first information presentation unit 20, and second information. The housing part 12 which is a recessed part which accommodates the presentation part 30 is provided. The knob portion 11 is made of, for example, resin and has a smoke specification.

  As shown in FIGS. 1 (a) and 1 (b), the operation unit 10 is viewed from the operation (pressing operation) side, and the operation surface 13 is an operation surface for performing a pressing operation and relates to a switch and the like. It is a display surface for presenting or displaying information. Hereinafter, the operation surface 13 is described as being the same as the display surface.

  On the operation surface 13, as shown in FIG. 1A, a display area is divided into several areas, and graphics such as marks and characters are presented and displayed. Below, it demonstrates as a display of figures, such as a mark and a character, as one form of presentation of figures, such as a mark and a character.

  A graphic such as a mark or a character displayed on the operation surface 13 is a first information which will be described later by a combination of a polarizing part and a transmission part which are formed on the first information presenting unit 20 and the second information presenting unit 30 which will be described later. Displayed based on the light emission switching control of the light emitting unit 40 and the second light emitting unit 50. In addition, although this display is illuminated and displayed with uniform light by being displayed through the diffusion plate 15 described above, a configuration without the diffusion plate 15 may be used. Moreover, since the knob part 11 is made into smoke specification, when it is not illuminated and displayed by the 1st light emission part 40 grade | etc., It is in the state which was blacked out.

  As shown in FIG. 1 (a), the common unit 101 has a polarization direction in a region that transmits and displays light from both the first light emitting unit 40 and the second light emitting unit 50, that is, in each of the polarizing units described later. This is a presentation unit that is released and displays information to be presented. The common unit 101 is provided so that a part of the first information presentation unit 20 and the second information presentation unit 30 overlap, and the display by the light emission of the first light emitting unit 40 and the display by the light emission of the second light emission unit 50 are provided. In FIG. 5, the area is displayed in common.

  The first region 102 is a region that transmits only light from the first light emitting unit 40 and does not transmit light from the second light emitting unit 50, that is, a polarizing unit having a corresponding polarization direction. In FIG. 1 (a), the region is indicated by horizontal hatching. The second region 103 is a region that transmits only light from the second light emitting unit 50 and does not transmit light from the first light emitting unit 40, that is, a polarizing unit having a corresponding polarization direction. In FIG. 1A, this is a region indicated by vertical hatching. The non-display area 104 is an area that does not transmit light from either the first light emitting unit 40 or the second light emitting unit 50. In FIG. 1A, this is a region indicated by cross hatching in the vertical and horizontal directions. The outer frame portion 105 is also a non-display area.

  On the operation surface 13, graphics such as predetermined marks and characters formed by the combination of the common portion 101, the first region 102, the second region 103, and the non-display region 104 described above are displayed. Note that light transmission and non-transmission need only be such that a figure such as a predetermined mark or character is displayed, and it is not necessary that the transmittance is 100% and the opaqueness is 100%. Moreover, the non-display area | region 104 may be formed with the opaque area by the black painting etc. in the area | region corresponding to the 1st information presentation part 20 or the 2nd information presentation part 30, for example.

  As shown in FIG. 1B, the operation unit 10 includes a switch mechanism that can perform a pressing operation in the P direction. The lower part of the operation unit 10 is fixed to the holder 60. The operation unit 10 and the holder 60 are integrally movable in the vertical direction.

  The holder 60 is formed in a cylindrical shape. The outer peripheral portion 61 of the holder 60 is slidably fitted to the inner peripheral portion 71 of the cylindrical case 70. A space is formed in the cylindrical interior of the holder 60 so that the light from the first light emitting unit 40 and the light from the second light emitting unit 50 can pass therethrough. In addition, a part or all of the cylindrical wall portion 62 is provided with a reflecting portion 65 that reflects the first polarized light or the second polarized light in the direction of the first light emitting portion 40 or the second light emitting portion 50. . The wall 62 may be black-painted or the like for reducing the light reflectance.

  The holder 60 is supported in the vertical direction by an elastic force by a spring 80 disposed between the holder 60 and the substrate 95 fixed to the bottom surface of the case 70. Thereby, the pusher 85 provided in the lower part of the holder 60 operates the switch unit 92 mounted on the substrate 95 by the pressing operation in the P direction. Thereby, the switch part 92 is arrange | positioned at the edge part of a cylindrical case, and when the operation part 10 moves along the axial direction of the case 70, the operation state (for example, ON or OFF state) in the switch part 92 is carried out. Is switched. As described above, the configuration including the operation unit 10, the case 70, and the like illustrated in FIGS. 1A and 1B functions as a switch device, and particularly functions as a switch device including an operation unit capable of switching display.

(First information presentation unit 20)
The first information presentation unit 20 is formed of a plate-shaped polarizing plate and functions as a presentation filter. The first information presentation unit 20 is, for example, a polarizing plate sandwiched between protective films that protect the upper and lower sides of a polarizing layer having a polarizing function. The polarizing layer forms, for example, a PVA (polyvinyl alcohol) layer, and adsorbs an iodine pigment to perform boric acid crosslinking. After drying and stabilization, the PVA layer is stretched to orient the iodine pigment and develop polarization.

  The above iodine dye is stretched in a direction orthogonal to the first polarization direction 23. Light having a polarization component parallel to this stretching direction (direction orthogonal to the first polarization direction 23) is reflected or absorbed and does not pass through the PVA layer. On the other hand, light having a polarization component perpendicular to the stretching direction is transmitted.

  As shown in FIG. 2A (a), the first information presentation unit 20 includes a first polarization direction 23 having a polarization function by stretching a pigment. The first polarization direction 23 is orthogonal to the extending direction of the dye. The light linearly polarized in the same direction as the first polarization direction 23 is transmitted. Further, the light linearly polarized in the direction orthogonal to the first polarization direction 23 is not transmitted.

  Here, the 1st permeation | transmission part 22 shown to FIG. 2A (a) is an area | region which sublimated the iodine pigment | dye of a PVA layer by laser irradiation etc., and has disappeared. Thereby, the 1st transmission part 22 does not have a polarization function, but can permeate | transmit light irrespective of a polarization state.

  As shown in FIGS. 2A and 2B, the first information presentation unit 20 includes a first polarization unit 21 that transmits linearly polarized light polarized in the first polarization direction 23, and a polarization state. 1st transmission part 22 which permeate | transmits light, and is comprised. Accordingly, the first information presentation unit 20 functions as a presentation filter. The shapes of the first polarizing unit 21 and the first transmitting unit 22 can display a figure such as a predetermined mark or character by a combination with a second information presentation unit 30 described later.

(Second information presentation unit 30)
The 2nd information presentation part 30 is also formed with a plate-shaped polarizing plate by the same composition as the 1st information presentation part 20, and functions as a presentation filter. The second information presentation unit 30 is provided in the operation unit 10 so as to partially overlap the first information presentation unit 20, and is irradiated with light having a second polarization direction 33 different from the first polarization direction 23. It is configured as follows. Here, the first polarization direction 23 and the second polarization direction 33 are orthogonal to each other.

  As shown in FIGS. 2A (c) and 2 (d), the second information presentation unit 30 transmits the linearly polarized light polarized in the second polarization direction 33 and the polarization state. It has the area | region of the 2nd transmission part 32 which permeate | transmits light, and is comprised. Therefore, the second information presentation unit 30 functions as a presentation filter. The shape of the second polarizing unit 31 and the second transmitting unit 32 can display a figure such as a predetermined mark or character by a combination with the first information presentation unit 20 described above.

(First light emitting part)
For the first light emitting unit 40, for example, laser light, LED light, or the like can be used. For example, in the case of laser light, the polarization direction is adjusted so as to have a polarization component in a specific direction, and in the case of LED light or the like, a polarization element is arranged in the emission part so as to have a polarization component in a specific direction. In the present embodiment, an LED light source is used as the first light emitting unit 40, and the first polarizing plate 45 is disposed in the emitting unit.

  The 1st light emission part 40 radiate | emits the light which has the polarization direction in the 1st polarization direction 23 shown to FIG. The light emitted from the first light emitting unit 40 through the first polarizing plate 45 can pass through the entire area of the second transmission unit 32 and the first information presentation unit 20 of the second information presentation unit 30.

(Second light emitting part)
For the second light emitting unit 50, for example, laser light, LED light, or the like can be used. For example, in the case of laser light, the polarization direction is adjusted so as to have a polarization component in a specific direction, and in the case of LED light or the like, a polarization element is arranged in the emission part so as to have a polarization component in a specific direction. In the present embodiment, an LED light source is used as the second light emitting unit 50, and the second polarizing plate 55 is disposed in the emitting unit.

  The 2nd light emission part 50 radiate | emits the light which has a polarization direction in the 2nd polarization direction 33 shown to FIG. Accordingly, the polarization direction of the light emitted from the second light emitting unit 50 through the second polarizing plate 55 is orthogonal to the polarization direction of the light emitted from the first light emitting unit 40 through the first polarizing plate 45. Light emitted from the second light emitting unit 50 through the second polarizing plate 55 can pass through the entire region of the second information presentation unit 30 and the first transmission unit 22 of the first information presentation unit 20.

  As shown in FIG. 3, the holder 60 is provided with a reflecting portion 65 in a part of the cylindrical wall portion 62 for blocking only unnecessary light and blocking unnecessary light. The reflecting portion 65 is preferably formed over the entire inner circumference of the cylindrical wall portion 62 of the holder 60. The necessary light is light emitted from the first light emitting unit 40 through the first polarizing plate 45 and has a polarization direction in the first polarization direction 23 shown in FIG. 2A (a). Unnecessary light is light that is irradiated toward the wall 62 and whose polarization state (polarization angle) is changed by reflection.

  FIG. 3A is a diagram illustrating the relationship between the path of light emitted from the first light emitting unit and the reflecting unit. As shown in FIG. 3A, the necessary light 40 a is directly emitted from the first light emitting unit 40 to the first information presentation unit 20 and the second information presentation unit 30. On the other hand, unnecessary light 40 b is applied to the reflecting unit 65 and reflected toward the first light emitting unit 40 or the second light emitting unit 50. Therefore, by providing the reflecting portion 65 on the cylindrical wall portion 62 of the holder 60, only the necessary light 40a can pass and the unnecessary light 40b can be shielded.

  The above description is based on the relationship between the light path irradiated from the first light emitting unit 40 and the reflecting unit 65, but the same applies to the relationship between the light path irradiated from the second light emitting unit 50 and the reflecting unit 65. is there.

  As shown in FIG. 3A, the reflecting portion 65 can be arranged by arranging a plurality of reflecting portions in the light traveling direction. In addition, it is possible to arrange the plurality of reflecting portions continuously in the light traveling direction, for example, by arranging the reflecting surfaces in a bellows shape.

  FIG. 3B is a detailed enlarged view of the reflecting portion. As shown in FIG. 3B, the reflecting portion 65 has a surface of the wall portion 62 formed as a triangular protrusion. The angle of the lower surface 65a of the triangular protrusion of the reflecting portion 65 is set so that unnecessary light 40b is reflected in the direction of the first light emitting portion 40 or the second light emitting portion 50. The angle of the lower surface 65a is set to, for example, 30 °, 45 °, etc., but the first light emitting unit 40, the second light emitting unit 50, the first information presenting unit 20, the second information presenting unit 30, and the wall 62 are arranged. Can be set at a predetermined angle. Further, as shown in FIG. 3B, the angle of the upper surface 65b is set to 0 ° (horizontal plane), for example.

  FIG. 3C is a partial cross-sectional view of the reflecting portion showing a modification. The reflection portion 65 can be formed by a member different from the holder 60 and can be attached to the wall portion 62 of the holder 60. As shown in FIG. 3 (c), a plurality of reflecting portions 65 of triangular protrusions are continuously arranged, that is, another member 66, which is a sheet-like member having a plurality of reflecting surfaces formed in a bellows shape, is attached to a holder 60. Affixed to the wall 62 of Thereby, unnecessary light 40 b can be reflected in the direction of the first light emitting unit 40 or the second light emitting unit 50.

(Display of the first display mark part)
When the first light emitting unit 40 emits light, light having a polarization direction in the first polarization direction 23 is emitted from the first light emitting unit 40 through the first polarizing plate 45. This light is applied to the first information presentation unit 20 and the second information presentation unit 30 as the necessary light described above. Since this necessary light has a polarization direction in the first polarization direction 23, it passes through the entire area of the second transmission unit 32 and the first information presentation unit 20 of the second information presentation unit 30. Accordingly, the first display mark portion 25 is displayed, which is a combination of the common portion 101 and the first region 102 shown in FIG. The area other than the first display mark part 25 is not displayed as the first non-display mark part 26 including the second area 103, the non-display area 104, and the frame part 105 shown in FIG. It becomes the state of.

(Display of second display mark part)
When the second light emitting unit 50 emits light, light having a polarization direction in the second polarization direction 33 is emitted from the second light emitting unit 50 through the second polarizing plate 55. This light is applied to the first information presentation unit 20 and the second information presentation unit 30 as the necessary light described above. Since this necessary light has a polarization direction in the second polarization direction 33, it passes through the entire region of the second information presentation unit 30 and the first transmission unit 22 of the first information presentation unit 20. Accordingly, the second display mark portion 35 is displayed, which is a combination of the common portion 101 and the second region 103 shown in FIG. Regions other than the second display mark portion 35 are not displayed as the second non-display mark portion 36 that is a combination of the first region 102, the non-display region 104, and the frame portion 105 shown in FIG. It becomes the state of.

(Second embodiment of the present invention)
The switch device 1 according to the embodiment of the present invention is provided with an operation unit 10 that switches an operation state in the switch unit, and the operation unit 10, and presents information by being irradiated with light having a first polarization direction. The first information presentation unit 20 and the operation unit 10 are provided so as to partially overlap the first information presentation unit 20, and are irradiated with light having a second polarization direction different from the first polarization direction. Light is transmitted through a second information presentation unit 30 that presents information, a first light emitting unit 40 that emits light through a polarizing plate having a first polarization direction, and a polarizing plate that has a second polarization direction. The second light emitting unit 50 that emits light, and the light path from the first light emitting unit 40 to the first information presentation unit 20 and the light path from the second light emitting unit 50 to the second information presentation unit 30 are deviated. In a region on the space, the first light emitting unit 40 or the second light emitting unit 5 And it is configured to include a reflection portion 65, the to reflect the direction the first polarized light or the second polarized light.

(Operation unit 10)
As shown in FIGS. 1A and 1B, the operation unit 10 includes a knob unit 11 that is pressed, a diffusion plate 15 that is attached to the knob unit 11, a first information presentation unit 20, and second information. The housing part 12 which is a recessed part which accommodates the presentation part 30 is provided. The knob portion 11 is made of, for example, resin and has a smoke specification.

  As shown in FIGS. 1 (a) and 1 (b), the operation unit 10 is viewed from the operation (pressing operation) side, and the operation surface 13 is an operation surface for performing a pressing operation and relates to a switch and the like. It is a display surface for presenting or displaying information. Hereinafter, the operation surface 13 is described as being the same as the display surface.

  On the operation surface 13, as shown in FIG. 1A, a display area is divided into several areas, and graphics such as marks and characters are presented and displayed. Below, it demonstrates as a display of figures, such as a mark and a character, as one form of presentation of figures, such as a mark and a character.

  A graphic such as a mark or a character displayed on the operation surface 13 is a first information which will be described later by a combination of a polarizing part and a transmission part which are formed on the first information presenting unit 20 and the second information presenting unit 30 which will be described later. Displayed based on the light emission switching control of the light emitting unit 40 and the second light emitting unit 50. In addition, although this display is illuminated and displayed with uniform light by being displayed through the diffusion plate 15 described above, a configuration without the diffusion plate 15 may be used. Moreover, since the knob part 11 is made into smoke specification, when it is not illuminated and displayed by the 1st light emission part 40 grade | etc., It is in the state which was blacked out.

  As shown in FIG. 1 (a), the common unit 101 has a polarization direction in a region that transmits and displays light from both the first light emitting unit 40 and the second light emitting unit 50, that is, in each of the polarizing units described later. This is a presentation unit that is released and displays information to be presented. The common unit 101 is provided so that a part of the first information presentation unit 20 and the second information presentation unit 30 overlap, and the display by the light emission of the first light emitting unit 40 and the display by the light emission of the second light emission unit 50 are provided. In FIG. 5, the area is displayed in common.

  The first region 102 is a region that transmits only light from the first light emitting unit 40 and does not transmit light from the second light emitting unit 50, that is, a polarizing unit having a corresponding polarization direction. In FIG. 1 (a), the region is indicated by horizontal hatching. The second region 103 is a region that transmits only light from the second light emitting unit 50 and does not transmit light from the first light emitting unit 40, that is, a polarizing unit having a corresponding polarization direction. In FIG. 1A, this is a region indicated by vertical hatching. The non-display area 104 is an area that does not transmit light from either the first light emitting unit 40 or the second light emitting unit 50. In FIG. 1A, this is a region indicated by cross hatching in the vertical and horizontal directions. The outer frame portion 105 is also a non-display area.

  On the operation surface 13, graphics such as predetermined marks and characters formed by the combination of the common portion 101, the first region 102, the second region 103, and the non-display region 104 described above are displayed. Note that light transmission and non-transmission need only be such that a figure such as a predetermined mark or character is displayed, and it is not necessary that the transmittance is 100% and the opaqueness is 100%. Moreover, the non-display area | region 104 may be formed with the opaque area by the black painting etc. in the area | region corresponding to the 1st information presentation part 20 or the 2nd information presentation part 30, for example.

  As shown in FIG. 1B, the operation unit 10 includes a switch mechanism that can perform a pressing operation in the P direction. The lower part of the operation unit 10 is fixed to the holder 60. The operation unit 10 and the holder 60 are integrally movable in the vertical direction.

  The holder 60 is formed in a cylindrical shape. The outer peripheral portion 61 of the holder 60 is slidably fitted to the inner peripheral portion 71 of the cylindrical case 70. A space is formed in the cylindrical interior of the holder 60 so that the light from the first light emitting unit 40 and the light from the second light emitting unit 50 can pass therethrough. In addition, a part or all of the cylindrical wall portion 62 is provided with a reflecting portion 65 that reflects the first polarized light or the second polarized light in the direction of the first light emitting portion 40 or the second light emitting portion 50. . The wall 62 may be black-painted or the like for reducing the light reflectance.

  The holder 60 is supported in the vertical direction by an elastic force by a spring 80 disposed between the holder 60 and the substrate 95 fixed to the bottom surface of the case 70. Thereby, the pusher 85 provided in the lower part of the holder 60 operates the switch unit 92 mounted on the substrate 95 by the pressing operation in the P direction. Thereby, the switch part 92 is arrange | positioned at the edge part of a cylindrical case, and when the operation part 10 moves along the axial direction of the case 70, the operation state (for example, ON or OFF state) in the switch part 92 is carried out. Is switched. As described above, the configuration including the operation unit 10, the case 70, and the like illustrated in FIGS. 1A and 1B functions as a switch device, and particularly functions as a switch device including an operation unit capable of switching display.

(First information presentation unit 20)
The first information presentation unit 20 is formed of a plate-shaped polarizing plate and functions as a presentation filter. The first information presentation unit 20 is, for example, a polarizing plate sandwiched between protective films that protect the upper and lower sides of a polarizing layer having a polarizing function. The polarizing layer forms, for example, a PVA (polyvinyl alcohol) layer, and adsorbs an iodine pigment to perform boric acid crosslinking. After drying and stabilization, the PVA layer is stretched to orient the iodine pigment and develop polarization.

  The above iodine dye is stretched in a direction orthogonal to the first polarization direction 24. Light having a polarization component parallel to the stretching direction (direction orthogonal to the first polarization direction 24) is reflected or absorbed and does not pass through the PVA layer. On the other hand, light having a polarization component perpendicular to the stretching direction is transmitted.

  As shown in FIG. 2B (a), the first information presentation unit 20 includes a first polarization direction 24 having a polarization function by stretching a pigment. The first polarization direction 24 is orthogonal to the extending direction of the dye. The light linearly polarized in the same direction as the first polarization direction 24 is not transmitted. The light linearly polarized in the direction orthogonal to the first polarization direction 24 (second polarization direction 34) is transmitted.

  Here, the 1st permeation | transmission part 22 shown to Fig.2B (a) is an area | region where the iodine pigment | dye of a PVA layer is sublimated by laser irradiation etc., and is lose | disappeared. Thereby, the 1st transmission part 22 does not have a polarization function, but can permeate | transmit light irrespective of a polarization state.

  As shown in FIGS. 2B (a) and 2 (b), the first information presentation unit 20 includes a first polarization unit 21 that does not transmit linearly polarized light polarized in the first polarization direction 24, and a polarization state. 1st transmission part 22 which permeate | transmits light, and is comprised. Accordingly, the first information presentation unit 20 functions as a presentation filter. The shapes of the first polarizing unit 21 and the first transmitting unit 22 can display a figure such as a predetermined mark or character by a combination with a second information presentation unit 30 described later.

(Second information presentation unit 30)
The 2nd information presentation part 30 is also formed with a plate-shaped polarizing plate by the same composition as the 1st information presentation part 20, and functions as a presentation filter. The second information presentation unit 30 is provided in the operation unit 10 so as to partially overlap the first information presentation unit 20, and is irradiated with light having a second polarization direction 34 different from the first polarization direction 24. It is configured as follows. Here, the first polarization direction 24 and the second polarization direction 34 are orthogonal to each other.

  As shown in FIGS. 2B (c) and 2 (d), the second information presentation unit 30 includes a second polarization unit 31 that does not transmit linearly polarized light polarized in the second polarization direction 34, and a polarization state. It has the area | region of the 2nd transmission part 32 which permeate | transmits light, and is comprised. Therefore, the second information presentation unit 30 functions as a presentation filter. The shape of the second polarizing unit 31 and the second transmitting unit 32 can display a figure such as a predetermined mark or character by a combination with the first information presentation unit 20 described above.

(First light emitting part)
For the first light emitting unit 40, for example, laser light, LED light, or the like can be used. For example, in the case of laser light, the polarization direction is adjusted so as to have a polarization component in a specific direction, and in the case of LED light or the like, a polarization element is arranged in the emission part so as to have a polarization component in a specific direction. In the present embodiment, an LED light source is used as the first light emitting unit 40, and the first polarizing plate 45 is disposed in the emitting unit.

  The 1st light emission part 40 radiate | emits the light which has a polarization direction in the 1st polarization direction 24 shown to Fig.2B (a) by the 1st polarizing plate 45. FIG. The light emitted from the first light emitting unit 40 through the first polarizing plate 45 can pass through the entire region of the second information presentation unit 30 and the first transmission unit 22 of the first information presentation unit 20.

(Second light emitting part)
For the second light emitting unit 50, for example, laser light, LED light, or the like can be used. For example, in the case of laser light, the polarization direction is adjusted so as to have a polarization component in a specific direction, and in the case of LED light or the like, a polarization element is arranged in the emission part so as to have a polarization component in a specific direction. In the present embodiment, an LED light source is used as the second light emitting unit 50, and the second polarizing plate 55 is disposed in the emitting unit.

  The 2nd light emission part 50 radiate | emits the light which has a polarization direction in the 2nd polarization direction 34 shown to FIG. Accordingly, the polarization direction of the light emitted from the second light emitting unit 50 through the second polarizing plate 55 is orthogonal to the polarization direction of the light emitted from the first light emitting unit 40 through the first polarizing plate 45. The light emitted from the second light emitting unit 50 through the second polarizing plate 55 can pass through the entire area of the second transmission unit 32 and the first information presentation unit 20 of the second information presentation unit 30.

  As shown in FIG. 3, the holder 60 is provided with a reflecting portion 65 in a part of the cylindrical wall portion 62 for blocking only unnecessary light and blocking unnecessary light. The reflecting portion 65 is preferably formed over the entire inner circumference of the cylindrical wall portion 62 of the holder 60. The necessary light is light emitted from the first light emitting unit 40 through the first polarizing plate 45 and has a polarization direction in the first polarization direction 24 shown in FIG. 2B (a). Unnecessary light is light that is irradiated toward the wall 62 and whose polarization state (polarization angle) is changed by reflection.

  FIG. 3A is a diagram illustrating the relationship between the path of light emitted from the first light emitting unit and the reflecting unit. As shown in FIG. 3A, the necessary light 40 a is directly emitted from the first light emitting unit 40 to the first information presentation unit 20 and the second information presentation unit 30. On the other hand, unnecessary light 40 b is applied to the reflecting unit 65 and reflected toward the first light emitting unit 40 or the second light emitting unit 50. Therefore, by providing the reflecting portion 65 on the cylindrical wall portion 62 of the holder 60, only the necessary light 40a can pass and the unnecessary light 40b can be shielded.

  The above description is based on the relationship between the light path irradiated from the first light emitting unit 40 and the reflecting unit 65, but the same applies to the relationship between the light path irradiated from the second light emitting unit 50 and the reflecting unit 65. is there.

  As shown in FIG. 3A, the reflecting portion 65 can be arranged by arranging a plurality of reflecting portions in the light traveling direction. In addition, it is possible to arrange the plurality of reflecting portions continuously in the light traveling direction, for example, by arranging the reflecting surfaces in a bellows shape.

  FIG. 3B is a detailed enlarged view of the reflecting portion. As shown in FIG. 3B, the reflecting portion 65 has a surface of the wall portion 62 formed as a triangular protrusion. The angle of the lower surface 65a of the triangular protrusion of the reflecting portion 65 is set so that unnecessary light 40b is reflected in the direction of the first light emitting portion 40 or the second light emitting portion 50. The angle of the lower surface 65a is set to, for example, 30 °, 45 °, etc., but the first light emitting unit 40, the second light emitting unit 50, the first information presenting unit 20, the second information presenting unit 30, and the wall 62 are arranged. Can be set at a predetermined angle. Further, as shown in FIG. 3B, the angle of the upper surface 65b is set to 0 ° (horizontal plane), for example.

  FIG. 3C is a partial cross-sectional view of the reflecting portion showing a modification. The reflection portion 65 can be formed by a member different from the holder 60 and can be attached to the wall portion 62 of the holder 60. As shown in FIG. 3 (c), a plurality of reflecting portions 65 of triangular protrusions are continuously arranged, that is, another member 66, which is a sheet-like member having a plurality of reflecting surfaces formed in a bellows shape, is attached to a holder 60. Affixed to the wall 62 of Thereby, unnecessary light 40 b can be reflected in the direction of the first light emitting unit 40 or the second light emitting unit 50.

(Display of the first display mark part)
When the first light emitting unit 40 emits light, light having a polarization direction in the first polarization direction 24 is emitted from the first light emitting unit 40 through the first polarizing plate 45. This light is applied to the first information presentation unit 20 and the second information presentation unit 30 as the necessary light described above. Since this necessary light has a polarization direction in the first polarization direction 24, it passes through the entire region of the second information presentation unit 30 and the first transmission unit 22 of the first information presentation unit 20. Accordingly, the first display mark portion 25 is displayed, which is a combination of the common portion 101 and the first region 102 shown in FIG. The area other than the first display mark part 25 is not displayed as the first non-display mark part 26 including the second area 103, the non-display area 104, and the frame part 105 shown in FIG. It becomes the state of.

(Display of second display mark part)
When the second light emitting unit 50 emits light, light having a polarization direction in the second polarization direction 34 is emitted from the second light emitting unit 50 through the second polarizing plate 55. This light is applied to the first information presentation unit 20 and the second information presentation unit 30 as the necessary light described above. Since this necessary light has a polarization direction in the second polarization direction 34, it passes through the entire area of the second transmission unit 32 and the first information presentation unit 20 of the second information presentation unit 30. Accordingly, the second display mark portion 35 is displayed, which is a combination of the common portion 101 and the second region 103 shown in FIG. Regions other than the second display mark portion 35 are not displayed as the second non-display mark portion 36 that is a combination of the first region 102, the non-display region 104, and the frame portion 105 shown in FIG. It becomes the state of.

(Effect of embodiment)
The embodiment of the present invention has the following effects.
(1) The switch device 1 according to the present embodiment is provided in the operation unit 10 for switching the operation state in the switch unit and the operation unit 10 and presents information by being irradiated with light having the first polarization direction. The first information presentation unit 20 and the operation unit 10 are provided so as to partially overlap with the first information presentation unit 20, and light having a second polarization direction different from the first polarization direction is irradiated. Through the second information presentation unit 30 for presenting information, the first light emitting unit 40 for irradiating light through the polarizing plate having the first polarization direction, and the polarizing plate with the second polarization direction. From the second light emitting unit 50 that irradiates light, the light path from the first light emitting unit 40 to the first information presenting unit 20, and the light path from the second light emitting unit 50 to the second information presenting unit 30 The first light emitting unit 40 or the second light emitting unit 5 is disposed in a region on the outside of the space. A reflecting portion 65 which reflects the direction the first polarized light or the second polarized light, and is configured to include a. In this Embodiment, the 1st information presentation part 20 and the 2nd information presentation part 30 are provided so that one part may overlap. Since at least a portion overlaps, the first polarized light from the first light emitting unit 40 and the second polarized light from the second light emitting unit 50 cannot be irradiated in a completely spatially separated manner. For this reason, in the present embodiment, the polarization directions (polarization angles) of the first polarized light from the first light emitting unit 40 and the second polarized light from the second light emitting unit 50 are different (for example, orthogonal). Yes. Since the first display mark unit 25 and the second display mark unit 35 are displayed independently by using such polarized light, the light reflected by the wall unit 62 and changed in polarization state is reflected on the first information presentation unit 20. Alternatively, the non-display mark can be seen by reaching the second information presentation unit 30 to deteriorate the display performance. However, in the present embodiment, since the reflecting portion 65 is provided on the cylindrical wall portion 62, unnecessary light is reflected in the direction of the first light emitting portion 40 or the second light emitting portion 50, and unnecessary light is reflected. Reaching the first information presentation unit 20 or the second information presentation unit 30 can be reduced. As a result, it is possible to provide a switch device having an operation unit with improved visibility of non-display marks and excellent display switching performance.
(2) FIG. 6 is a cross-sectional view showing a light path in the case of the prior art. As described above, in the switchable display configuration shown in FIGS. 1, 6, etc., the light from the first light emitting unit 40 and the light from the second light emitting unit 50 are spatially completely separated and irradiated. For this reason, for example, a light separation shielding plate or the like cannot be disposed in the central portion. Therefore, in the conventional configuration as shown in FIG. 6, the light that has been reflected by the wall 62 and changed in polarization state reaches the first information presentation unit 20 or the second information presentation unit 30, for example, the first display When the mark portion is displayed, the display performance is deteriorated such that the second display mark portion is also displayed. On the other hand, in this Embodiment, since the reflection part 65 is provided in the cylindrical wall part 62, only the required light is irradiated to the 1st information presentation part 20 or the 2nd information presentation part 30. Can do. That is, only the light having the polarization direction in the first polarization direction among the light emitted from the first light emitting unit 40 is irradiated to the first information presentation unit 20. Similarly, of the light emitted from the second light emitting unit 50, only the light having the polarization direction in the second polarization direction is irradiated to the second information presentation unit 30. Thereby, display performance is hardly deteriorated, and improvement in the appearance of non-display marks can be expected.
(3) In the switch device 1 according to the present embodiment, since the display mark portion can be switched and displayed on the operation surface 13 of the knob portion 11, the display content can be switched according to the content of the on / off operation of the switch device, for example. In addition, since the switchable content display is a high-performance display in which the non-display mark appearance is improved, the operability when the switch device 1 is operated is improved.
(4) This embodiment can be used as a switching device having a display switching function, and can also be used as a display switching device having no switching function.

  As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention based on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. it can. In addition, not all combinations of features described in these embodiments and modifications are necessarily essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Switch apparatus, 10 ... Operation part, 11 ... Knob part, 12 ... Storage part, 13 ... Operation surface, 15 ... Diffusing plate, 20 ... 1st information presentation part, 21 ... 1st polarizing part, 22 ... 1st transmission Part, 23, 24 ... first polarization direction, 25 ... first display mark part, 26 ... first non-display mark part, 30 ... second information presentation part, 31 ... second polarization part, 32 ... second transmission part, 33, 34 ... second polarization direction, 35 ... second display mark part, 36 ... second non-display mark part, 40 ... first light emitting part, 40a ... necessary light, 40b ... unnecessary light, 45 ... first polarization Plate 50... Second light emitting part 55. Second polarizing plate 60. Holder 61. Peripheral part 62. Wall part 65. Reflecting part 65 a. Lower surface 65 b. Case: 71 ... Inner circumference, 80 ... Spring, 85 ... Pusher, 92 ... Switch part, 95 ... Substrate, 101 ... Common part, 10 ... first region, 103 ... second region, 104 ... non-display area, 105 ... frame portion

Claims (5)

An operation unit for switching the operation state in the switch unit;
A first information presenting unit that is provided in the operation unit and presents information by being irradiated with a first polarized light having a first polarization direction;
The operation unit is provided so as to partially overlap the first information presentation unit, and presents information by irradiating a second polarized light having a second polarization direction different from the first polarization direction. A second information presentation unit;
A first light emitting unit that irradiates the first polarized light through a polarizing plate having the first polarization direction;
A second light emitting unit that irradiates the second polarized light via a polarizing plate having the second polarization direction;
On the path of the first polarization from the first light emitting unit to the first information presentation unit and on the space deviating from the path of the second polarization from the second light emission unit to the second information presentation unit And a reflection unit that reflects the first polarized light or the second polarized light in the direction of the first light emitting unit or the second light emitting unit.   Each of the first information presentation unit and the second information presentation unit includes a polarization unit having a corresponding polarization direction, and a presentation unit in which the polarization direction in each of the polarization units is canceled and information to be presented is displayed. The switch device according to claim 1, wherein the presentation unit shares the information to be presented in part.   The switch device according to claim 1, wherein the reflection unit has a plurality of reflection surfaces.   4. The switch device according to claim 1, wherein the reflecting portion has the plurality of reflecting surfaces in a bellows shape. 5.   5. The switch unit according to claim 1, wherein the switch unit is disposed at an end of a cylindrical case, and the operation unit is moved along an axial direction of the case to switch an operation state of the switch unit. The switch device according to item.