WO2018110356A1

WO2018110356A1 - Switch device

Info

Publication number: WO2018110356A1
Application number: PCT/JP2017/043529
Authority: WO
Inventors: 貴博白井; 祐一郎重松; 悟武縄
Original assignee: 株式会社東海理化電機製作所
Priority date: 2016-12-16
Filing date: 2017-12-04
Publication date: 2018-06-21

Abstract

This switch device includes: an operation unit (10) which switches an operation state of a switch unit; a first information presenting unit (20) which is provided in the operation unit (10) and presents information by being irradiated with first polarization light having a first polarization direction; a second information presenting unit (30) which is provided in the operation unit (10) such to partially overlap the first information presenting unit (20), and which presents information by being irradiated with second polarization light having a second polarization direction which is different from the first polarization direction; a first light emission unit (40) which irradiates the first polarization light through a polarization plate having the first polarization direction; a second light emission unit (50) which irradiates the second polarization light through a polarization plate having the second polarization direction; and an aperture unit (65) disposed in a first polarization path from the first light emission unit (40) to the first information presenting unit (20) and in a second polarization path from the second light emission unit (50) to the second information presenting unit (30), such that the aperture unit adjust the transmitted light.

Description

Switch device

Cross-reference of related applications

This application claims priority of Japanese Patent Application No. 2016-244864 and Japanese Patent Application No. 2017-201215. The entire contents of Japanese Patent Application No. 2016-244864 and Japanese Patent Application No. 2017-201215 are incorporated herein by reference. This application is incorporated by reference.

The present invention relates to a switch device.

Two light sources that emit light with different polarization directions, two polarizing plates that pass through each of the light in the polarization directions from each light source, and light that has passed through each polarizing plate. There is known a display switching device that includes an information display plate that is formed of a polarizing plate having each polarization direction, and that forms a pattern as information to be presented, and switches information to be presented by switching emitted light ( For example, see 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

In the display switching device disclosed in 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.

The objective of this invention is providing the switch apparatus provided with the operation part excellent in the display switching performance.

The switch device according to an embodiment of the present invention has the following configurations [1] to [6].

[1] An operation unit that switches an operation state in the switch unit, a first information presentation 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. Two information presenting units, a first light emitting unit that irradiates the first polarized light through the polarizing plate having the first polarization direction, and the first light emitting unit through the polarizing plate having the second polarization direction. A second light emitting unit that irradiates two polarized lights, a path of the first polarized light from the first light emitting unit to the first information presenting unit, and from the second light emitting unit to the second information presenting unit Arranged to adjust the light passing therethrough on the path of the second polarization; Switch device comprising a diaphragm 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 presentation unit includes a part of the information to be presented.

[3] The operation unit includes a cylindrical holder, the switch unit is mounted on a substrate disposed at an end of the cylindrical case, and the operation unit attaches the holder to the case shaft. The switch device according to [1] or [2], wherein the switch device is moved in a direction to switch an operation state of the switch unit.

[4] The path of the first polarization from the first light emitting unit to the first information presenting unit and the path of the second polarization from the second light emitting unit to the second information operation unit are The switch device according to [3], wherein the switch device is formed in a holder, and the diaphragm portion is an opening provided on an inner wall portion of the holder to narrow the first and second polarization paths.

[5] The diaphragm unit reflects the light reflected by the inner wall of the holder and blocks reflected light incident on the presentation unit of the first information presentation unit or the second information presentation unit. [2] to [4].

[6] The switch device according to [4] or [5], wherein an inner wall portion of the holder is black-coated.

According to one embodiment of the present invention, it is possible to provide a switch device that includes an operation unit that is excellent in display switching performance.

FIG. 1A is a top plan view of the switch device according to the embodiment. FIG. 1B is a cross-sectional view showing the AA cross section of FIG. 1A. FIG. 2A is an upper plan view of the first information presentation unit in the first embodiment. 2B is a cross-sectional view of FIG. 2A. FIG. 2C is an upper plan view of the second information presentation unit in the first embodiment. 2D is a cross-sectional view of FIG. 2C. FIG. 2E is an upper plan view of the first information presentation unit in the second embodiment. 2F is a cross-sectional view of FIG. 2E. FIG. 2G is an upper plan view of the second information presentation unit in the second embodiment. FIG. 2H is a cross-sectional view of FIG. 2G. FIG. 3 is a diagram illustrating a relationship between the path of light emitted from the first light emitting unit and the diaphragm unit. FIG. 4A is a top 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. FIG. 4B is a cross-sectional view illustrating a path of light emitted from the first light emitting unit. 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. FIG. 5B is a cross-sectional view illustrating a path of light emitted from the second light emitting unit. 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 is irradiated with a first polarized light having a first polarization direction. The first information presentation unit 20 for presenting the second polarization, and the operation unit 10 is provided so as to partially overlap the first information presentation unit 20 and has a second polarization direction different from the first polarization direction. The second information presentation unit 30 that presents information by being irradiated, the first light emitting unit 40 that irradiates the first polarized light through the polarizing plate having the first polarization direction, and the second polarization direction The second light emitting unit 50 that irradiates the second polarized light through the polarizing plate having the first light emitting unit 50, the first polarized light path from the first light emitting unit 40 to the first information presentation unit 20, and the second light emitting unit 50. Through the second polarized light path from the second information presentation unit 30 to the second information presentation unit 30 And it is configured to include a diaphragm portion 65 which is arranged to adjust the light.

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

As shown in FIGS. 1A and 1B, 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 presents information on a switch or the like. It is a display surface for displaying. 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, the 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. 1A, the common unit 101 releases the polarization direction in each of the regions that transmit and display the light of both the first light emitting unit 40 and the second light emitting unit 50, that is, the polarizing units described later, This is a presentation section in which information to be presented is shown. 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. 1A, it is an area | region shown with the hatching of a horizontal direction. 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, it is an area | region shown by the hatching of the vertical direction. 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 an area 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 illustrated 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. A part of the cylindrical wall portion 62 is provided with a diaphragm portion 65 for allowing only predetermined light to pass therethrough and blocking unnecessary light. 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 dye 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 to FIG. 2A, the 1st information presentation part 20 is equipped with the 1st polarization direction 23 which extends | stretches a pigment | dye and has a polarization function. 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 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 FIG. 2A and FIG. 2B, the first information presentation unit 20 transmits the light regardless of the polarization state, and the first polarization unit 21 that transmits linearly polarized light polarized in the first polarization direction 23. It has the area | region of the 1st permeation | transmission part 22 to permeate | transmit. 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. 2C and 2D, the second information presentation unit 30 transmits the light regardless of the polarization state, and the second polarization unit 31 that transmits linearly polarized light polarized in the second polarization direction 33. It has the area | region of the 2nd permeation | transmission part 32 to permeate | transmit. 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 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 second light emitting unit 50 emits light having a polarization direction in the second polarization direction 33 shown in 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 diaphragm 65 in a part of the cylindrical wall portion 62 for allowing only predetermined light to pass therethrough and blocking unnecessary light. The throttle part 65 is preferably formed over the entire inner circumference of the cylindrical wall part 62 of the holder 60. The predetermined 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. Therefore, light including polarized light other than the first polarization direction 23 that has been reflected by the wall 62 and changed in polarization state is excluded from the predetermined light. Similarly, the predetermined light is light emitted from the second light emitting unit 50 through the second polarizing plate 55 and having the polarization direction in the second polarization direction 33 shown in FIG. 2C. Therefore, light including polarized light other than the second polarization direction 33 that has been reflected by the wall 62 and changed in polarization state is excluded from the predetermined light.

FIG. 3 is a diagram illustrating a relationship between the path of light emitted from the first light emitting unit 40 and the diaphragm unit 65. As shown in FIG. 3, the diaphragm 65 has a predetermined light 40 a directly from the first light emitting unit 40 to the first information presentation unit 20 and the second information presentation unit 30 corresponding to the width W of the opening. Irradiated. The light 40b reflected by the front surface 65a of the diaphragm 65 is reflected to the first light emitting unit 40 side. In addition, the light 40c that passes through the diaphragm 65 and is reflected by the wall 62 is applied to the non-display area 104 shown in FIG. Further, the light 40d reflected by the wall 62 in front of the front surface 65a of the diaphragm 65 has a small amount of light due to the light amount distribution of the LED and a large reflection angle at the wall 62, so that the first information presentation unit 20 and The influence on the second information presentation unit 30 is small. Note that, as described above, the effect of the light 40d reflected by the front wall 62 can be further reduced by applying black coating or the like to the wall 62 to reduce the light reflectance. From the above, by providing the diaphragm portion 65 in a part of the cylindrical wall portion 62 of the holder 60, it is possible to pass only predetermined light and reduce the influence of unnecessary light.

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

(Display of the first display mark part)
When the first light emitting unit 40 is caused to emit 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 predetermined light described above. Since this predetermined 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. Therefore, 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. 1A. Regions other than the first display mark portion 25 are not displayed as the first non-display mark portion 26 including the second region 103, the non-display region 104, and the frame portion 105 shown in FIG. 1A. Become.

(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 predetermined light described above. Since this predetermined 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 that combines the common portion 101 and the second region 103 shown in FIG. 1A is displayed. Regions other than the second display mark portion 35 are not displayed as the second non-display mark portion 36 including the first region 102, the non-display region 104, and the frame portion 105 shown in FIG. 1A. Become.

(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 is irradiated with a first polarized light having a first polarization direction. The first information presentation unit 20 for presenting the second polarization, and the operation unit 10 is provided so as to partially overlap the first information presentation unit 20 and has a second polarization direction different from the first polarization direction. The second information presentation unit 30 that presents information by being irradiated, the first light emitting unit 40 that irradiates the first polarized light through the polarizing plate having the first polarization direction, and the second polarization direction The second light emitting unit 50 that irradiates the second polarized light through the polarizing plate having the first light emitting unit 50, the first polarized light path from the first light emitting unit 40 to the first information presentation unit 20, and the second light emitting unit 50. Through the second polarized light path from the second information presentation unit 30 to the second information presentation unit 30 And it is configured to include a diaphragm portion 65 which is arranged to adjust the light.

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

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 to FIG. 2E, the 1st information presentation part 20 is provided with the 1st polarization direction 24 which extends a pigment | dye and has a polarization function. 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. 2E 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. 2E and 2F, 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 light regardless of the polarization state. It has the area | region of the 1st permeation | transmission part 22 to permeate | transmit. 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. 2G and 2H, the second information presentation unit 30 transmits the light regardless of the polarization state, and the second polarization unit 31 that does not transmit the linearly polarized light polarized in the second polarization direction 34. It has the area | region of the 2nd permeation | transmission part 32 to permeate | transmit. 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.

The 1st light emission part 40 radiate | emits the light which has a polarization direction in the 1st polarization direction 24 shown to 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.

The second light emitting unit 50 emits light having a polarization direction in the second polarization direction 34 shown in 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 diaphragm 65 in a part of the cylindrical wall portion 62 for allowing only predetermined light to pass therethrough and blocking unnecessary light. The throttle part 65 is preferably formed over the entire inner circumference of the cylindrical wall part 62 of the holder 60. The predetermined 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. 2E. Therefore, light including polarized light other than the first polarization direction 24 that has been reflected by the wall 62 and changed in polarization state is excluded from the predetermined light. Similarly, the predetermined light is light emitted from the second light emitting unit 50 through the second polarizing plate 55 and has a polarization direction in the second polarization direction 34 shown in FIG. 2G. Accordingly, light including polarized light other than the second polarization direction 34 that has been reflected by the wall 62 and changed in polarization state is excluded from the predetermined light.

(Display of the first display mark part)
When the first light emitting unit 40 is caused to emit 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 predetermined light described above. Since this predetermined 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. Therefore, 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. 1A. Regions other than the first display mark portion 25 are not displayed as the first non-display mark portion 26 including the second region 103, the non-display region 104, and the frame portion 105 shown in FIG. 1A. Become. 4A shows 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 shows a path of light emitted from the first light emitting portion.

(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 predetermined light described above. Since the predetermined light has a polarization direction in the second polarization direction 34, the predetermined light is transmitted 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 that combines the common portion 101 and the second region 103 shown in FIG. 1A is displayed. Regions other than the second display mark portion 35 are not displayed as the second non-display mark portion 36 including the first region 102, the non-display region 104, and the frame portion 105 shown in FIG. 1A. Become. FIG. 5A shows 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 shows a path of light emitted from the second light emitting portion.

(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 that switches the operation state in the switch unit and the operation unit 10 and is irradiated with the first polarized light having the first polarization direction. A first information presentation unit 20 that presents information and a second information direction that is provided in the operation unit 10 so as to partially overlap the first information presentation unit 20 and has a second polarization direction different from the first polarization direction. A second information presentation unit 30 that presents information by being irradiated with polarized light, a first light emitting unit 40 that emits first polarized light through a polarizing plate having a first polarization direction, and a second polarized light A second light emitting unit 50 that irradiates the second polarized light through a polarizing plate having a direction, a first polarized light path from the first light emitting unit 40 to the first information presentation unit 20, and a second light emitting unit. 50 passes through the second polarized light path from the second information presentation unit 30. There is a stop portion 65 arranged to adjust the light, and configurations with. 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 diaphragm 65 is provided in a part of the cylindrical wall 62, the light reflected by the wall 62 is applied to the first information presentation unit 20 or the second information presentation unit 30. Reaching 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 FIG. 1B, FIG. 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 the present embodiment, the diaphragm 65 is provided in a part of the cylindrical wall 62, so that the light passing therethrough can be adjusted. That is, only the light having the polarization direction in the first polarization direction out of the light emitted from the first light emitting unit 40 is adjusted as the predetermined light and applied to the first information presentation unit 20. Similarly, only light having a polarization direction in the second polarization direction out of the light emitted from the second light emitting unit 50 is adjusted as predetermined light and applied 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 20 1st information presentation part 21 1st polarization part 22

1st transmission parts

23 and 24 1st polarization direction 25 1st display mark part 26 1st non-display mark part 30 2nd information presentation part 31 Second polarizing portion 32

Second transmitting portions

33, 34 Second polarization direction 35 Second display mark portion 36 Second non-display mark portion 40 First light emitting portion 45 First polarizing plate 50 Second light emitting portion 55 Second polarizing plate 60 Holder 62 Wall 65 Restriction 70 Case 92 Switch 95 Board

Claims

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;
Passes on the path of the first polarization from the first light emitting section to the first information presentation section and on the path of the second polarization from the second light emission section to the second information presentation section. And a diaphragm unit arranged to adjust the light.
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 operation unit has a cylindrical holder,
The switch part is mounted on a substrate disposed at an end of a cylindrical case,
The switch device according to claim 1, wherein the operation unit switches the operation state of the switch unit by moving the holder in an axial direction of the case.
The path of the first polarization from the first light emitting unit to the first information presentation unit and the path of the second polarization from the second light emitting unit to the second information operation unit are in the holder. Formed,
4. The switch device according to claim 3, wherein the aperture portion is an opening portion provided on an inner wall portion of the holder to limit the path of the first and second polarizations. 5.
5. The switch device according to claim 2, wherein the aperture portion reflects light reflected by an inner wall of the holder and blocks reflected light incident on the presentation portion of the first information presentation portion or the second information presentation portion. .
The switch device according to claim 4 or 5, wherein the inner wall portion of the holder is black-coated.