JP2011108207A - Operation input device and operation input detecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation input device capable of easily achieving height reduction. <P>SOLUTION: The operation input device for receiving force by an operator's finger with an operation face of a slide key 30 includes: a substrate 10 in which a light emitting part 11 and a light receiving part 12 are installed separately in direction parallel to a prescribed reference surface; and a diffusion plate 14 for changing the density of light received by the light receiving part 12 when the diffusion plate 14 is movable between the light emitting part 11 and the light receiving part 12 by an operation input received on the operation face of the slide key 30, and outputs an output signal corresponding to the density received by the light receiving part 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an operation input device that receives an operation input and an operation input detection device that detects the operation input.

  2. Description of the Related Art Conventionally, a detection device that detects a force by a change in capacitance when an interval between electrodes changes is known (see, for example, Patent Documents 1 and 2). An optical input device for moving a cursor on a screen of a mobile phone or the like by operating a movable member is known (for example, see Patent Document 3).

JP-A-4-148833 Japanese Patent Laid-Open No. 5-118942 Japanese Patent Laid-Open No. 2002-116676

  When the operation input is detected using the change in capacitance as in the above-described Patent Documents 1 and 2, the operation input may not be correctly detected due to electromagnetic noise.

  In this regard, as in Patent Document 3 described above, if an operation input is detected using light, resistance to electromagnetic noise is higher than that in the case of using capacitance. However, since the technique described in Patent Document 3 has a configuration in which light is projected in a direction orthogonal to the displacement direction of the movable member, it is difficult to realize a low-profile structure.

  Accordingly, an object of the present invention is to provide an operation input device and an operation input detection device that can easily realize a reduction in height.

In order to achieve the above object, an operation input device according to the present invention comprises:
A base part in which the light emitting part and the light receiving part are spaced apart; and
A light diffusing member that changes the density of light received by the light receiving unit by moving between the light emitting unit and the light receiving unit by an operation input;
And an output unit that outputs an output signal corresponding to the density.

Further, the operation input detection device according to the present invention includes:
A base part in which the light emitting part and the light receiving part are spaced apart; and
A light diffusing member that changes the density of light received by the light receiving unit by moving between the light emitting unit and the light receiving unit by an operation input;
An output unit that outputs an output signal corresponding to the density and a detection unit that detects the movement of the diffusion member based on the output signal are provided.

  According to the present invention, a reduction in height can be easily realized.

It is an exploded view of the operation input device 1 which is the 1st Example of this invention. 1 is a perspective view of an operation input device 1. FIG. 3 is a cross-sectional view of the operation input device 1. FIG. It is a perspective view of the operation input device 1 in a state where the slide key 30 is operated in the X (−) direction. It is an exploded view of the operation input device 1 in a state where the slide key 30 is operated in the X (−) direction. It is a perspective view of the operation input device 1 in a state in which the slide key 30 is operated in the X (+) direction. It is an exploded view of the operation input device 1 in a state where the slide key 30 is operated in the X (+) direction. It is the figure which showed the irradiation direction of the light of the light emission part. FIG. 6 is a diagram showing a state in which the light receiving unit 12 receives irradiation light from the light emitting unit 11 through the light guide unit 13. It is the figure which showed the state by which the irradiation light of the light emission part 11 was diffused by the diffusion plate 14 located in the X (+) direction side. It is the figure which showed the state by which the irradiation light of the light emission part 11 was diffused by the diffusion plate 14 located in the X-axis origin. It is the figure which showed the state by which the irradiation light of the light emission part 11 was diffused by the diffuser plate 14 located in the X (-) direction side. It is a figure for demonstrating the diffusion function of a diffusion plate. FIG. 3 is a block diagram illustrating a main part of an operation input detection device that detects an operation input by the operation input device 1. It is an exploded view of the operation input apparatus 2 which is the 2nd Example of this invention. 3 is a perspective view of an operation input device 2. FIG. 3 is a cross-sectional view of the operation input device 2. FIG. It is the figure which showed the arrangement positional relationship of a light emission part and a light-receiving part. FIG. 5 is a diagram showing a positional relationship between the light receiving unit 25 and the light guide unit 27. FIG. 4 is a cross-sectional view of a state in which a slide key 31, a case 42, and a slide key holder 43 are combined. It is a back view in the state where the slide key 31, the case 42, the slide key holder 43, and the diffusion plate 26 are combined. It is the figure which showed the positional relationship of the light emission parts 21-24, the light-receiving part 25, and the diffusion plate 26 in the state where the operator is not applying force. FIG. 6 is a diagram showing a diffusion state in which light emitted from the light emitting unit 21 is diffused by the diffusion plate 25 in a state where the operator is not applying force. It is the figure which showed the state which slid the slide key 31 to the X (+) direction. It is the figure which showed the positional relationship of the light emission parts 21-24, the light-receiving part 25, and the diffuser plate 26 in the state which slid the slide key 31 to the X (+) direction. FIG. 5 is a diagram showing a diffusion state in which light emitted from the light emitting unit 21 is diffused by a diffusion plate 26. FIG. 6 is a diagram illustrating a relationship between a distance between a diffusion plate and a light receiving unit and a density of light received by the light receiving unit. It is the figure which showed the state which slid the slide key 31 to the X (+) direction and the Y (+) direction. FIG. 6 is a diagram showing a positional relationship between the slide key 31 and the diffusion plate 26 in a state where the slide key 31 is slid in the X (+) direction and the Y (+) direction. It is the figure which showed the positional relationship of the light emission parts 21-24, the light-receiving part 25, and the diffusion plate 26 in the state which slid the slide key 31 to the X (+) direction and the Y (+) direction. FIG. 5 is a diagram showing a diffusion state in which light emitted from the light emitting unit 21 is diffused by a diffusion plate 26. 3 is a block diagram illustrating a main part of an operation input detection device that detects an operation input input via the operation input device 2. FIG. It is a figure for demonstrating the detection method of the displacement amount and displacement direction of the diffusion plate. It is the figure which showed the case where two light emission parts and one light-receiving part are arrange | positioned. It is an exploded view of the operation input apparatus 3 which is the 3rd Example of this invention. 3 is a cross-sectional view of the operation input device 3. FIG. It is the figure which showed the state in which the rotation key 32 and the diffusion plate 28 were combined together. FIG. 6 is a view showing a state in which a rotary key 32 combined with a diffusion plate 28 is fitted to a slide plate 33. FIG. 6 is a diagram showing a first rotation state of the diffusion plate 28. FIG. 6 is a diagram showing a second rotation state of the diffusion plate 28. It is the figure which showed the state which the diffusion plate 28 of the 2nd rotation state displaced in the X (+) direction and the Y (+) direction. It is the figure which showed the shape of the diffusion plate 29 which has a 3 type plate | board thickness side surface. 3 is a cross-sectional view of the operation input device 4. FIG. It is an arrangement plan of light emitting part 85, light receiving parts 81-84, and light guide parts 91-94. It is the figure which showed arrangement | positioning of the light guide part 27, and the diffusion state of light. It is the figure which showed the optical path of the light which the light emission part 85 irradiated. FIG. 3 is a block diagram illustrating a main part of an operation input detection device that detects an operation input input via the operation input device 4. It is the figure which showed the shape of the cyclic | annular diffuser plate 28-1.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. An operation input device according to an embodiment of the present invention is an operation interface that receives a force from an operator's fingers. An operation input detection device according to an embodiment of the present invention detects an operation input by an operator based on a signal from the operation input device. By detecting the operation input, it is possible to make the computer grasp the operation content corresponding to the operation input.

  For example, an instruction display such as a cursor or a pointer on a screen of an electronic device such as a mobile terminal such as a mobile phone, a game machine, a personal computer, or an electric appliance can be moved according to the operation content intended by the operator. Further, for example, the set temperature of the air conditioner can be changed according to the operation content intended by the operator, or the light of the lighting device can be dimmed according to the operation content intended by the operator.

  Hereinafter, specific examples of the operation input device and the operation input detection device of the present embodiment will be described.

  FIG. 1 is an exploded view of an operation input device 1 according to the first embodiment of the present invention. FIG. 2 is a perspective view of the operation input device 1. FIG. 3 is a cross-sectional view of the operation input device 1.

  The substrate 10 is a base in which the light emitting unit 11 and the light receiving unit 12 are spaced apart from each other in a reference direction parallel to one reference plane. The substrate 10 has an installation surface 10a on which the light emitting unit 11 and the light receiving unit 12 are installed. The installation surface 10a is preferably a flat surface in terms of reducing the height. The substrate 10 may be a resin substrate (for example, a printed circuit board) or a metal substrate such as iron or aluminum.

  The light emitting unit 11 is a light source that irradiates light toward the light receiving unit 12. The light emitting unit 11 is, for example, a light emitting element that emits light by supplying an electric signal. Specific examples of the light emitting element include a light emitting diode (LED) and a semiconductor laser.

  The light receiving unit 12 receives light emitted from the light emitting unit 11. The light receiving unit 12 is, for example, a light receiving element that converts the amount of received light or the density of received light into an electrical signal and outputs the electrical signal. Specific examples of the light receiving element include a photodiode and a phototransistor.

  The diffusion plate 14 is a light diffusing member that changes the density of light received by the light receiving unit 12 by moving between the light emitting unit 11 and the light receiving unit 12 by an operation input. The diffusion plate 14 disposed between the light emitting unit 11 and the light receiving unit 12 is movable between the light emitting unit 11 and the light receiving unit 12, thereby changing the diffusion state of light toward the light receiving unit 12. The density of light received by the light receiving unit 12 is changed. The diffusion plate 14 that moves in the same direction as the operation input direction changes the diffusion state of the light toward the light receiving unit 12 when the distance from the light receiving unit 12 is changed by the operation input. In other words, the diffusion plate 14 moving in the same direction as the direction of the operation input changes the diffusion state of the light toward the light receiving unit 12 when the distance from the light emitting unit 11 is changed by the operation input.

  The diffusion plate 14 diffuses the light emitted from the light emitting unit 11 toward the light receiving unit 12. The light emitting unit 11 faces one surface of the diffusion plate 14, and the light receiving unit 12 faces the other surface of the diffusion plate 14 (that is, the surface opposite to the facing surface facing the light emitting unit 11). The thickness of the diffusion plate 14 (that is, the distance between the surface on the side facing the light emitting unit 11 and the surface on the side facing the light receiving unit 12) is constant.

  The slide key 30 is an operation unit having an operation surface 30a on which an operator's force can act. The slide key 30 is a displacement member that is displaced in the reference direction along with the diffusion plate 14 when an operator's force acts on the operation surface 30a. Thereby, the diffusion plate 14 is displaced in the same displacement direction as the slide key 30 together with the displacement of the slide key 30.

  The slide key 30 is supported by the case 40 so as to be displaceable in the reference direction. For example, the slide key 30 is supported so as to be displaceable in a direction parallel to the installation surface 10a of the substrate 10. The case 40 can protect the light emitting unit 11, the light receiving unit 12, and the diffusion plate 14 by covering the light emitting unit 11, the light receiving unit 12, and the diffusion plate 14. The case 40 is fixed to the substrate 10.

  The slide key 30 is arranged on the upper surface 40a of the case 40 and slides on the upper surface 40a of the case 40 in the reference direction along the slide groove 41 formed on the upper surface 40a of the case 40 in the reference direction. In the case of the operation input device 1, the slide groove 41 is formed in a direction parallel to a straight line connecting the light emitting unit 11 and the light receiving unit 12. Thereby, the slide key 30 can be displaced in a direction parallel to a straight line connecting the light emitting unit 11 and the light receiving unit 12.

  The diffusion plate 14 is connected to the slide key 30 so that the diffusion plate 14 is displaced in the reference direction integrally with the slide key 30 in conjunction with the displacement of the slide key 30 in the reference direction. For example, the diffusion plate 14 is connected to a surface opposite to the operation surface 30 a of the slide key 30 (that is, a facing surface 30 b facing the installation surface 10 a of the substrate 10). For example, as shown in FIG. 3, a part of the diffusion plate 14 passes through the slide groove 41 formed in the reference direction and is connected to the facing surface 30 b side of the slide key 30.

  The slide key 30 is displaced in a uniaxial direction which is a direction parallel to the installation surface 10a of the substrate 10 when the operator's force acts on the operation surface 30a. That is, the slide key 30 slides in a uniaxial direction parallel to a straight line connecting the light emitting unit 11 and the light receiving unit 12.

  As shown in FIGS. 4 to 7, the light diffusing plate 14 receives light by the light receiving unit 12 by moving in the same direction as the slide key 30 slides due to the operator's force acting on the operation surface 30 a. It is a member that changes the light density. The moving direction of the diffusion plate 14 is a direction parallel to a straight line connecting the light emitting unit 11 and the light receiving unit 12. 4 and 5 show a state in which the slide key 30 is operated in the X (−) direction, which is the X-axis negative side direction, and the distance between the diffusion plate 14 and the light receiving unit 12 in the X-axis direction is short. . 6 and 7 show a state in which the slide key 30 is operated in the X (+) direction, which is the positive direction of the X axis, and the distance between the diffuser plate 14 and the light receiving unit 12 in the X axis direction is long. .

  The substrate 10, the slide key 40, and the case 40 are made of a highly light-shielding material so that an appropriate amount of received light can be secured when the light emitted from the light emitting unit 11 is received by the light receiving unit 12. It is preferable.

  As shown in FIGS. 8 and 9, the light emitting unit 11 emits light toward the light receiving unit 12. The light emitting surface 11a of the light emitting unit 11 faces in the X axis direction, and the light receiving surface 12a of the light receiving unit 12 faces in the Z axis direction orthogonal to the X axis direction. Irradiation light irradiated from the light emitting surface 11a of the light emitting unit 11 so that an appropriate amount of received light can be secured when the irradiation light irradiated from the light emitting surface 11a of the light emitting unit 11 is received by the light receiving surface 12a of the light receiving unit 12. The light guide unit 13 guides the light to the light receiving surface 12 a of the light receiving unit 12. The light guide unit 13 reflects incident light in the X-axis direction from the light emitting surface 11 a of the light emitting unit 11 by the reflecting surface of the light guiding unit 13 and reaches the light receiving surface 12 a of the light receiving unit 12. The shape of the light guide unit 13 may be a triangular prism or another shape. Further, the light guide unit 13 is installed on the installation surface 10a side of the substrate 10, and in the case of FIG. 9, the light guide unit 13 is installed on the light receiving surface 12a of the light receiving unit 12.

  10 to 12 are diagrams showing a state in which the light emitted from the light emitting unit 11 is diffused by the diffusion plate 14. 10 to 12 are diagrams viewed from the Z-axis direction. Since the distance between the light emitting unit 11 and the light receiving unit 12 is constant, as is apparent from FIGS. 10 to 12, as the amount of displacement of the diffusion plate 14 in the X (+) direction increases (that is, with the diffusion plate 14 and Since the amount of light received by the light receiving unit 12 decreases (as the distance to the light receiving unit 12 increases), the density of light received by the light receiving unit 12 with a constant area of the light receiving surface 12a decreases (sparsely). . Conversely, as the amount of displacement of the diffusion plate 14 in the X (−) direction increases (that is, as the distance between the diffusion plate 14 and the light receiving unit 12 decreases), the amount of light received by the light receiving unit 12 increases. The density of light received by the light receiving unit 12 having a constant area of the light receiving surface 12a is increased (densified).

  FIG. 13 is a diagram for explaining the diffusion function of the diffusion plate 14 which is a light diffusion member. An object (for example, a spherical object) that is also transmissive and has a different refractive index is included in the light diffusing plate. The incident light is refracted when passing through the object contained in the diffusion plate. The light is refracted at various angles by a plurality of the objects, and spreads in a disordered direction. Even if the light does not spread at all (infinite light), after passing through the diffusion plate, the density of the light received by the light receiving unit decreases as the distance between the diffusion plate and the light receiving unit increases.

  FIG. 14 is a block diagram illustrating a main part of the operation input detection device that detects an operation input input via the operation input device 1. The operation input detection device includes the operation input device 1 and detection means for detecting the movement of the diffusion plate 14 based on an output signal corresponding to the density of light received by the light receiving unit 12. Since the movement of the diffusion plate 14 changes according to the operation input, the operation input corresponding to the movement of the diffusion plate 14 can be detected by detecting the movement of the diffusion plate 14. By detecting the operation input, it is possible to make a predetermined computer grasp the operation content corresponding to the detected operation input.

  The detection means for detecting the movement of the diffusion plate 14 is, for example, an operation mode that represents the movement of the diffusion plate 14 based on an output signal corresponding to the density of light received by the light receiving unit 12 in synchronization with the light emission of the light emitting unit 11. Is detected. That is, the detection means is based on the output signal corresponding to the density of the light received by the light receiving unit 12, and the diffusion plate 14 corresponding to the density of the light received by the light receiving unit 12 in synchronization with the light emission of the light emitting unit 11. The operation mode is detected.

  The detection means of the operation input detection device illustrated in FIG. 14 is a diffusion plate of the operation input device 1 as an operation mode of the diffusion plate 14 corresponding to the density of light received by the light receiving unit 12 in synchronization with the light emission of the light emitting unit 11. 14 displacement states (in particular, the position of the diffusion plate 14 in the X-axis direction) can be detected. The displacement state of the diffusion plate 14 can be detected because the position of the diffusion plate 14 of the operation input device 1 in the X-axis direction corresponds to the density of light received by the light receiving unit 12 in synchronization with the light emission of the light emitting unit 11. Because.

  The operation input detection device illustrated in FIG. 14 is a CPU 60 that is a calculation means, a drive circuit 66 connected to an output port 61 of the CPU 60, and an input port of the CPU 60 as detection means for detecting the movement of the diffusion plate 14. A receiving circuit 67 connected to the AD port 63.

  The drive circuit 66 outputs a drive signal for causing the light emitting unit 11 of the operation input device 1 to emit light via the input unit 11 b of the operation input device 1 in accordance with a control signal from the CPU 60. The drive circuit 66 includes a drive driver such as a transistor that drives the light emitting unit 11, for example. The receiving circuit 67 receives an output signal from the light receiving unit 12 of the operation input device 1 via the output unit 12 b of the operation input device 1.

  The output unit 12b outputs an output signal corresponding to the density of light received by the light receiving unit 12. The light receiving unit 12 outputs a voltage signal corresponding to the density of light received by itself. Therefore, for example, the output unit 12b outputs an output signal corresponding to the light density, outputs a larger output voltage as the light density increases, and outputs a smaller output voltage as the light density decreases. The receiving circuit 67 outputs an analog voltage signal corresponding to the output voltage from the output unit 12 b to the AD port 63 of the CPU 60.

  The input unit 11b is, for example, a wiring for connecting the light emitting unit 11 and the drive circuit 66 and an input terminal for inputting a drive signal for causing the light emitting unit 11 to emit light from the drive circuit 66 to the light emitting unit 11. It is. The output unit 12 b is, for example, a wiring for connecting the light receiving unit 12 and the receiving circuit 67 and an output signal corresponding to the density of light received by the light receiving unit 12 from the light receiving unit 12 to the receiving circuit 67. Output terminal.

  Therefore, the CPU 60 periodically emits the light emitting unit 11, and acquires an analog voltage signal according to the density of light received by the light receiving unit 12 in synchronization with the light emission of the light emitting unit 11 via the AD port 63. By doing so, it is possible to detect the position in the X-axis direction of the diffusing plate 14 and the slide key 30 that is displaced together with the diffusing plate 14.

  Thus, according to the present embodiment, it is possible to detect the position in the X-axis direction of the diffusing plate 14 that is displaced as the slide key 30 is displaced and the slide key 30 that is displaced integrally with the diffusing plate 14. Therefore, it is possible to make a predetermined computer grasp the operation content intended by the operator who operated the slide key 30. Further, according to the present embodiment, since the displacement direction of the slide key 30 and the displacement direction of the diffusion plate 14 are the same X-axis direction, the dimension of the operation input device 1 in the Z-axis direction can be suppressed, and the operation input device 1 Low profile can be easily realized.

  FIG. 15 is an exploded view of the operation input device 2 according to the second embodiment of the present invention. FIG. 16 is a perspective view of the operation input device 2. FIG. 17 is a cross-sectional view of the operation input device 2. The description of the same parts as those in the above embodiment will be omitted or simplified.

  The operation input device 2 includes a substrate 20 having an installation surface 20a in which a plurality of light emitting units (four light emitting units 21 to 24 in the case of the present embodiment) and one light receiving unit 25 are installed apart from each other. . The substrate 20 is a base in which the light emitting units 21 to 24 and the light receiving unit 25 are spaced apart from each other in a reference direction parallel to the XY plane of the orthogonal coordinate system determined by the X, Y, and Z axes. The installation surface 20a is preferably a flat surface in terms of reducing the height. The substrate 20 may be a resin substrate (for example, a printed circuit board) or a metal substrate such as iron or aluminum.

  As shown in FIG. 18, the light emitting units 21 to 24 are arranged in the circumferential direction of a virtual circle formed by connecting points having the same distance from the origin O that is the reference point of the two-dimensional orthogonal coordinate system. Yes. The light emitting units 21 to 24 are arranged at equal intervals in the circumferential direction in order to easily detect the position of the reference point of the slide key 31 (for example, the center point of the slide key 31) on the XY plane. Is preferred. The light emitting units 21 to 24 are arranged every 90 ° in the circumferential direction in four directions of X (+), X (−), Y (+), and Y (−). The X (−) direction is a direction opposite to the X (+) direction by 180 ° on the XY plane, and the Y (−) direction is 180 ° opposite to the Y (+) direction on the XY plane. The direction of the direction. The light emitting unit 21 is disposed on the X axis on the positive side with respect to the origin O, the light emitting unit 22 is disposed on the Y axis on the negative side with respect to the origin O, and the light emitting unit 23 is disposed on the origin O. The light emitting unit 24 is disposed on the positive Y axis with respect to the origin O. The light emitting unit 24 is disposed on the negative X axis.

  The light receiving unit 25 is disposed on the installation surface 20a so as to be positioned on a straight line orthogonal to the XY plane and passing through the origin O.

  The diffusing plate 26 is a light diffusing member that changes the density of light received by the light receiving unit 25 by moving between the light emitting units 21 to 24 and the light receiving unit 25 by operation input (FIGS. 15 and 15). 17). The diffusion plate 26 disposed between the light emitting units 21 to 24 and the light receiving unit 25 moves between the light emitting units 21 to 24 and the light receiving unit 25, thereby changing the diffusion state of light toward the light receiving unit 25. By doing so, the density of the light received by the light receiving unit 25 is changed. The diffusion plate 26 that moves in the same direction as the operation input direction changes the diffusion state of the light toward the light receiving unit 25 when the distance from the light receiving unit 25 is changed by the operation input. In other words, the diffusion plate 26 that moves in the same direction as the operation input direction changes the diffusion state of the light toward the light receiving unit 25 when the distance from each of the light emitting units 21 to 24 is changed by the operation input. .

  The light guide unit 27 refracts the irradiation light emitted from the light emitting surface of each light emitting unit on the outside of the convex surface of the light guide unit 27 and guides it to the light receiving surface 25 a of the light receiving unit 25. The shape of the light guide 27 may be a dome shape or other shapes. Further, the light guide unit 27 is installed on the installation surface 20 a side of the substrate 20, and is installed on the light receiving surface 25 a of the light receiving unit 25 in the case of FIG. 19.

  The operation input device 2 includes a slide key 31 that is a displacement member supported so as to be displaceable in a direction parallel to the XY plane. A plate-like slide key 31 is disposed above the light emitting units 21 to 24 provided on the substrate 20. The slide key 31 includes a facing surface 31b (a lower surface in FIG. 15) facing the installation surface 20a on which the light emitting units 21 to 24 are installed, and an operation surface 31a (in FIG. 15) on which an operator's force can act. , Upper surface). The slide key 31 is a displacement member that is displaced in the XY plane with the diffusion plate 26 when the operator's force acts on the operation surface 31a. Thereby, the diffusion plate 26 is displaced in the same displacement direction as the slide key 31 together with the displacement of the slide key 31.

  As shown in FIG. 20, the slide key 31 is supported by a case 42 and a slide key holder 43 so as to be movable in a direction parallel to the XY plane. With the position of the slide key 31 in the standby state (initial state) where the operator's force is not applied to the operation surface 31a as the standby position, the case 42 and the slide key holder 43 have the operator's force applied to the operation surface 31a. Thus, it is supported so that it can move in the direction parallel to the XY plane from the standby position. The case 42 is fixed to the substrate 20.

  The inner diameter of the slide key holder 43 is smaller than the outer diameter of the slide key 31. Thus, the slide key 31 can be supported between the case 42 and the slide holder 43 so as to be displaceable in a direction parallel to the XY plane (see FIGS. 17 and 20).

  The slide key 31, the case 42, and the substrate 20 are preferably made of a highly light-shielding material so that light emitted from the light emitting units 21 to 24 does not leak outside.

  As shown in FIG. 21, the diffusion plate 26 is connected to the facing surface 31 b of the slide key 31 and moves together with the slide key 31 so as to be displaceable parallel to the XY plane.

  22 to 31 are diagrams for explaining the state of the operation input device 2 when the operator operates the operation input device 2.

  As shown in FIG. 22, the diffusion plate 26 is an annular light diffusion member having a plurality of side surfaces. Each side surface of the diffusion plate 26 is a plate-shaped side surface. The light emitting unit 21 faces the first side surface 26 a of the diffusion plate 26, the light emitting unit 22 faces the second side surface 26 c of the diffusion plate 26, and the light emitting unit 23 faces the third side surface 26 e of the diffusion plate 26. The light emitting portion 24 faces the fourth side surface 26g of the diffusion plate 26. That is, the light emitting units 21 to 24 are arranged on the outer side with respect to the side surface of the diffusion plate 26. On the other hand, the light receiving unit 25 is surrounded by the side surface of the diffusion plate 26 and is disposed inside the side surface of the diffusion plate 26. The thickness of each side surface of the diffusion plate 26 is constant, and the thickness of each side surface is all equal.

  FIG. 22 is a diagram illustrating the positional relationship among the light emitting units 21 to 24, the light receiving unit 25, and the diffusion plate 26 in a state where the operator does not apply force to the operation surface 31 a that is the back surface of the slide key 31. In the standby state of FIG. 22 where the operator is not applying force, the slide key 31 is located at the center of the XY plane. FIG. 23 is a diagram illustrating a diffusion state in which light emitted from the light emitting unit 21 is diffused by the side surface 26a of the diffusion plate 26 in a state where the operator does not apply force to the operation surface 31a which is the back surface of the slide key 31. It is.

  FIG. 24 is a diagram showing a state in which the slide key 31 is slid in the X (+) direction. FIG. 24 is a view of the operation surface 31a of the slide key 31 as viewed from the opposite side. FIG. 25 is a diagram showing the positional relationship among the light emitting units 21 to 24, the light receiving unit 25, and the diffusion plate 26 in a state where the slide key 31 is slid in the X (+) direction. 24 and 25, the diffusion plate 26 slides in the X (+) direction in conjunction with the slide of the slide key 31 in the X (+) direction.

  The diffusion plate 26 is a member that changes the density of light received by the light receiving unit 25 by moving in the same direction as the slide key 31 slides when the operator's force acts on the operation surface 31a.

  FIG. 26 is a diagram illustrating a diffusion state in which light emitted from the light emitting unit 21 is diffused by the diffusion plate 26. FIG. 26A shows a case where the slide key 31 is slid in the X (−) direction, and FIG. 26B shows a case where the slide key 31 is located at the reference position (the center of the XY plane). 26 (C) shows a case where the slide key 31 is slid in the X (+) direction. The distance between the side surface 26a of the diffusion plate 26 and the light receiving unit 21 is short in the order of FIGS. 26 (A), (B), and (C).

  FIG. 27 is a diagram showing the relationship between the distance between the diffusing plate 26 and the light receiving unit 25 and the density of light received by the light receiving unit 25. When the distance between the light emitting surface of the light emitting unit and the light receiving surface of the light receiving unit is constant, the distance from the diffusion plate to the light receiving unit becomes longer as the diffuser plate disposed therebetween approaches the light emitting unit. If the distance from the diffuser plate to the light receiving unit is increased, the amount of light received by the light receiving unit will decrease if the light receiving area of the light receiving unit does not change even if the diffusion angle of the light diffused from the surface of the diffuser plate does not change The density of light received by the light receiving unit changes small. On the contrary, if the distance from the diffuser plate to the light receiving portion is shortened, the density of light received by the light receiving portion changes greatly.

  28 to 31 show a state in which the slide key 31 is slid in an oblique direction in which the X (+) direction and the Y (+) direction are combined. FIG. 28 is a view of the operation surface 31 a of the slide key 31 as viewed from the opposite side. FIG. 29 is a view in which the facing surface 31b of the slide key 31 is seen to face (the substrate 20 and the like are omitted).

  As shown in FIG. 30, regarding the distance between each light emitting unit and the side surface of the diffusion plate facing each light emitting unit, the distance between the light emitting unit 21 and the side surface 26a and the distance between the light emitting unit 24 and the side surface 26g are shortened. The distance between the light emitting unit 22 and the side surface 26c and the distance between the light emitting unit 23 and the side surface 26e are increased.

  In addition, the length of the portion having a constant thickness on one side surface of the diffusion plate 26 is equal to or greater than the maximum displacement amount by which the diffusion plate 26 can be displaced in the direction of the length of the constant portion (in the Y-axis direction in FIG. 31). The side surface shape of the diffusion plate 26 is formed for each of the X-axis direction and the Y-axis direction so as to have a length. By forming in this way, even if the diffusion plate 26 is displaced in the direction of the length of the fixed portion, the displacement in the direction perpendicular to the length direction of the fixed portion (in the case of FIG. 31, X-axis direction) It is possible to prevent the degree of diffusion of light emitted from the light emitting unit in charge of detection of light (that is, the density of light received by the light receiving unit 25) from being changed. That is, regarding the displacement in the X-axis direction and the displacement in the Y-axis direction, the displacement amounts in those directions can be extracted independently. The outer shape of the annular diffusion plate 26 formed in this way is a polygonal shape of a quadrangle or more. The outer shape of the illustrated diffusion plate 26 is an octagon.

  FIG. 32 is a block diagram illustrating a main part of the operation input detection device that detects an operation input input via the operation input device 2. As in the case of the operation input device 1 described above, the operation input detection device detects the movement of the diffusion plate 26 based on the operation input device 2 and an output signal corresponding to the density of light received by the light receiving unit 25. Detecting means.

  The detecting means for detecting the movement of the diffusion plate 26, for example, detects the movement of the diffusion plate 26 based on an output signal corresponding to the density of light received by the light receiving unit 25 in synchronization with the light emission of each of the light emitting units 21 to 24. The operation mode to be expressed is detected. In other words, the detection means performs diffusion corresponding to the density of the light received by the light receiving unit 25 in synchronization with the light emission of each of the light emitting units 21 to 25, based on the output signal corresponding to the density of the light received by the light receiving unit 25. The operation mode of the plate 26 is detected.

  The detection means of the operation input detection device illustrated in FIG. 32 is an operation input device 2 as an operation mode of the diffusion plate 26 corresponding to the density of light received by the light receiving unit 25 in synchronization with the light emission of each of the light emitting units 21 to 24. The displacement state of the diffusion plate 26 (particularly, the position of the diffusion plate 26 on the XY plane) can be detected. The displacement state of the diffusing plate 26 can be detected because the position of the diffusing plate 26 of the operation input device 2 in the X-axis direction is the density of the light received by the light receiving unit 25 in synchronization with the light emission of the light emitting unit 21 and the light receiving unit 25. This corresponds to a difference value in the X-axis direction that is a difference from the density of light received in synchronization with the light emission of the light emitting unit 23. Similarly, the position in the Y-axis direction of the diffusion plate 26 of the operation input device 2 is the density of light received by the light receiving unit 25 in synchronization with the light emission of the light emitting unit 22 and the light receiving unit 25 is synchronized with the light emission of the light emitting unit 24. This is because it corresponds to the difference value in the Y-axis direction, which is the difference from the density of the received light.

  The operation input detection device illustrated in FIG. 32 has, as detection means for detecting the movement of the diffusion plate 26, a CPU 60 that is a calculation means, a drive circuit 71 connected to the output port 76 of the CPU 60, and an output port 77 of the CPU 60. The drive circuit 72 connected, the drive circuit 73 connected to the output port 78 of the CPU 60, the drive circuit 74 connected to the output port 79 of the CPU 60, and the reception connected to the AD port 63 which is the input port of the CPU 60. A circuit 75.

  The drive circuit 71 outputs a drive signal for causing the light emitting unit 21 of the operation input device 2 to emit light via the input unit 21 b of the operation input device 2 in accordance with a control signal from the CPU 60. The drive circuit 71 includes a drive driver such as a transistor that drives the light emitting unit 21, for example. The same applies to the drive circuits 72, 73, and 74. The receiving circuit 75 receives an output signal from the light receiving unit 25 of the operation input device 2 via the output unit 25 b of the operation input device 2.

  The output unit 25b outputs an output signal corresponding to the density of light received by the light receiving unit 25. The light receiving unit 25 outputs a voltage signal corresponding to the density of light received by itself. Therefore, for example, the output unit 25b outputs an output signal corresponding to the light density, outputs a larger output voltage as the light density increases, and outputs a smaller output voltage as the light density decreases. The receiving circuit 75 outputs an analog voltage signal corresponding to the output voltage from the output unit 25 b to the AD port 63 of the CPU 60.

  The input unit 21b is, for example, a wiring for connecting the light emitting unit 21 and the drive circuit 71 and an input terminal for inputting a drive signal for causing the light emitting unit 21 to emit light from the drive circuit 71 to the light emitting unit 21. It is. The same applies to the input units 22b to 24b. The output unit 25b is, for example, a wiring for connecting the light receiving unit 25 and the receiving circuit 75 and an output signal corresponding to the density of light received by the light receiving unit 25 from the light receiving unit 25 to the receiving circuit 75. Output terminal.

  FIG. 33 is a diagram for explaining a detection method of the position on the XY plane of the slide key 31 that moves together with the diffusion plate 26 and the diffusion plate 26 (that is, the displacement amount and the displacement direction on the XY plane). It is. The CPU 60 of the operation input detection device sequentially emits light from each light emitting unit, and evaluates a signal received in synchronization with the light emission as each transmitted light amount (light density). In order to avoid simultaneously receiving the light emitted from the plurality of light emitting units, the light emission timing of each light emitting unit is shifted by the CPU 60. The operation mode of the diffusing plate 26 is detected by the CPU 60 every time the light receiving unit receives light from all the light emitting units.

  As shown in FIG. 33A, when the center point of the diffusion plate 26 is at the center, the respective light reception signals are at the same level. On the other hand, as shown in FIG. 33B, when the diffusion plate 26 is moved in the Y (+) direction, the distance from the light emitting unit 24 to the diffusion plate 26 is reduced (the light emitting unit 24 among the side surfaces of the diffusion plate 26). Therefore, the amount of light received by receiving the light emitted by the light emitting unit 24 with the light receiving unit 25 decreases, and at the same time, the light received by the light receiving unit 25. The density of the decreases. Conversely, the distance from the light emitting unit 22 disposed on the opposite side of the light emitting unit 24 to the diffusion plate 26 increases (the distance from the side surface of the diffusion plate 26 facing the light emitting unit 22 to the light receiving unit 25 decreases). Therefore, the amount of light received by receiving the light emitted from the light emitting unit 22 by the light receiving unit 25 increases, and at the same time, the density of the light received by the light receiving unit 25 increases. When the diffusing plate 26 is moved in the Y (−) direction, the opposite is true. The same can be considered when the diffusion plate 26 is moved in the X (+) or X (−) direction.

  Further, as shown in FIG. 33 (c), when the diffusion plate 26 is moved in the X (+) direction in addition to the input in the Y (+) direction, the light received by the light emitting units 22 and 24 is received. The amount does not change with respect to the case of FIG. 33B, and the amount of light received by the light emitting units 21 and 23 changes. In the case of FIG. 33 (c), the amount of light received by the light receiving unit 25 corresponding to the light emitted by the light emitting unit 21 decreases, and at the same time, the density of the light received by the light receiving unit 25 decreases, while the light emitting unit 23 emits light. The amount of light received by the light receiving unit 25 corresponding to the received light increases, and at the same time, the density of the light received by the light receiving unit 25 increases.

  In addition, since the light emitting units are arranged in pairs in each of the X direction and the Y direction, if the amount of light received by the pair of light emitting units is the same, the center position in each of the X direction and the Y direction is Can be judged accurately.

  Thus, according to the present embodiment, it is possible to detect the position of the XY plane of the diffusing plate 26 that is displaced with the displacement of the sliding key 31 and the sliding key 31 that is displaced together with the diffusing plate 26. The operation contents intended by the operator who operates the slide key 31 can be made to be grasped by a predetermined computer. Further, according to the present embodiment, since the displacement direction of the slide key 31 and the displacement direction of the diffusion plate 26 are on the same XY plane, the dimension of the operation input device 2 in the Z-axis direction can be suppressed, and the operation input device 2 Low profile can be easily realized.

  As shown in FIG. 34, the light emitting unit may include only one on the X axis for detecting the position in the X direction, and may include only one on the Y axis for detecting the position in the Y direction. . The amount of light received in each of the X and Y directions when the center of the XY plane is mechanically stored in advance is stored in advance as the amount of received light corresponding to the center position (zero point) of the XY plane. The stored value may be used as a zero point to detect the X direction and the Y direction.

  FIG. 35 is an exploded view of the operation input device 3 according to the third embodiment of the present invention. FIG. 36 is a cross-sectional view of the operation input device 3. The description of the same parts as those in the above embodiment will be omitted or simplified.

  The operation input device 3 includes a slide plate 33 and a rotation key 32 which are displacement members supported so as to be displaceable in a direction parallel to the XY plane. As shown in FIG. 38, the rotary key 32 as the operation unit is parallel to the XY plane by the slide plate 33 in a state of being rotatably fitted in a hole penetrating the center portion of the slide plate 33 in the XY plane. It is supported to be movable in the direction. The slide plate 33 is supported by the case 42 so as to be movable in a direction parallel to the XY plane. Thereby, the rotation key 32 can be rotated in the XY plane and can be displaced on the XY plane.

  As shown in FIG. 37, the diffusion plate 28 is a light diffusion member that is combined with the rotary key 32 integrally. Accordingly, the diffusion plate 28 rotates in the same direction as the rotation direction of the rotary key 32, and the diffusion plate 28 is displaced in the same direction as the direction in which the rotation key 32 is displaced on the XY plane.

  As shown in FIG. 39, the thicknesses of two side surfaces (for example, the side surface 28a and the side surface 28b) adjacent to each other at an outer angle of 45 ° among the eight side surfaces of the diffusing plate 28 having an octagonal outer shape are different from each other. Yes. Moreover, the plate | board thickness of the side surfaces (for example, side surface 28a and side surface 28e) which the diffusion plate 28 opposes is equal. Each time the diffusion plate 28 is rotated by 45 °, the thickness of the side surface of the diffusion plate in the linear direction (optical path direction) connecting the light emitting unit and the light receiving unit changes, whereby the density of light received by the light receiving unit 25 Changes. In this case, there are two types of thickness of the side surface of the diffusion plate in the linear direction connecting the light emitting unit and the light receiving unit, and the density of light received by the light receiving unit 25 when the side surface of the diffusion plate is thinner is the diffusion plate. The thickness of the side surface of the light receiving portion 25 is higher than the density of light received by the light receiving portion 25. Therefore, two kinds of rotation angle states (that is, two states of the diffusion plate 28 when rotated in the rotation direction) can be detected with respect to the rotation direction. Thereby, for example, a mode selection function for selecting an operation mode of a predetermined electronic device from two types of modes can be realized.

  39 to 40 show the displacement state of the diffusion plate 28. FIG. 39 shows a state in which the thicker side surface of the diffusing plate 28 faces the light emitting units 21 to 24. When the diffusion plate 28 is rotated 45 ° from the state of FIG. 39, the side surface with the thinner plate thickness faces the light emitting portions 22 to 24 among all the side surfaces of the diffusion plate 28 as shown in FIG. 40. Also, as shown in FIG. 41, the rotary key 32 is displaced from the facing state shown in FIG. 40 in an oblique direction in which the X (+) direction and the Y (+) direction are combined. The diffusion plate 28 can be displaced in the oblique direction while maintaining the facing state shown.

  The main part of the operation input detection device that detects the operation input input through the operation input device 3 of the present embodiment may be the same as that shown in FIG. The detection method of the position on the XY plane of the rotary key 32 and the slide plate 33 (that is, the displacement amount and the displacement direction on the XY plane) that moves integrally with the diffusion plate 28 and the diffusion plate 28 is as follows. It may be the same as FIG.

  The detection means of the operation input detection device that detects the operation input of the operation input device 3 is an operation mode of the diffusion plate 28 corresponding to the density of light received by the light receiving unit 25 in synchronization with the light emission of each of the light emitting units 21 to 24. The displacement state of the diffusion plate 28 of the operation input device 3 (in particular, the position of the diffusion plate 28 on the XY plane) and the rotation state of the diffusion plate 28 can be detected. The rotation state of the diffusion plate 28 can be detected because the position state of the diffusion plate 28 when the diffusion plate 28 of the operation input device 3 rotates in the XY plane, the light receiving unit 25 emits light from each of the light emitting units 21 to 24. This is because it corresponds to the total value of the density of light received in synchronization with the.

  Thus, according to the present embodiment, the XY plane of the rotary key 32 and the slide plate 33 that are displaced together with the diffusion plate 28 and the diffuser plate 26 that are displaced in accordance with the displacement of the rotary key 32 and the slide plate 33. Since the position and the rotated state in the XY plane can be detected, the operation content intended by the operator who operates the rotation key 32 can be recognized by a predetermined computer. Further, according to the present embodiment, since the displacement direction of the rotary key 32 and the displacement direction of the diffusion plate 28 are on the same XY plane, the dimension of the operation input device 3 in the Z-axis direction can be suppressed, and the operation input device 3 Low profile can be easily realized.

  As shown in FIG. 42, the thickness of one side surface of the diffusing plate 28 may be different from the thickness of both side surfaces of the one side surface. FIG. 42 is an external view of a diffusion plate 29 which is a light diffusion member composed of three types of plate thickness side surfaces. The outer shape of the diffusion plate 29 is a dodecagon. The thickness d2 of the side surface 29b of the diffusion plate 29 is different from the thickness d1 of the side surface 29a adjacent on one side of the side surface 29b, and is different from the thickness d3 of the side surface 29c adjacent to the other side of the side surface 29b. Moreover, the plate | board thickness of the side surfaces (for example, side surface 29a and side surface 29g) which the diffusion plate 29 opposes is equal.

In this case, there are three types of thickness of the side surface of the diffusion plate in the linear direction connecting the light emitting unit and the light receiving unit,
The diffusion degree increases as the thickness of the diffusion plate increases with respect to the portion where the thickness of the side surface of the diffusion plate is small, and the density of light received by the light receiving unit 25 decreases. Therefore, three types of rotation angle states (that is, three states of the diffusion plate 29 when rotated in the rotation direction) can be detected with respect to the rotation direction. Thereby, for example, it is possible to realize a mode selection function for selecting an operation mode of a predetermined electronic device from three types of modes.

  Furthermore, by providing at least three types of thickness of the side surface of the diffusion plate in the linear direction connecting the light emitting unit and the light receiving unit, not only three types of rotation angle states can be input, but also the “rotation direction” can be detected. Become. In the case of FIG. 42, the state transitions in the order of states 1, 3, 2, 1, 3, 2 in the clockwise direction, and the state transitions in the order of states 1, 2, 3, 1, 2, 3 in the counterclockwise direction. For example, from the state in which the light reception density corresponding to the state 2 is detected, whether the light reception density corresponding to the state 1 or the light reception density corresponding to the state 3 is detected, the diffusion plate 29, that is, the rotary key 32 rotating directions can be detected.

  FIG. 43 is an exploded view of the operation input device 4 according to the fourth embodiment of the present invention. The description of the same parts as those in the above embodiment will be omitted or simplified.

  The operation input device 4 includes a substrate 20 having an installation surface 20a in which one light emitting unit 85 and a plurality of light receiving units (four light receiving units 81 to 84 in this embodiment) are installed apart from each other.

  As shown in FIG. 44, the light receiving units 81 to 84 are arranged in the circumferential direction of a virtual circle formed by connecting points having the same distance from the origin O, which is the reference point of the two-dimensional orthogonal coordinate system. Yes. The light receiving portions 81 to 84 are arranged at equal intervals in the circumferential direction in that the light receiving portions 81 to 84 are easy to detect the position of the reference point of the slide key 31 (for example, the center point of the slide key 31) on the XY plane. Is preferred. The light receiving portions 81 to 84 are arranged at 90 ° in the circumferential direction in four directions of X (+), X (−), Y (+), and Y (−). The light receiving unit 81 is disposed on the X axis on the positive side with respect to the origin O, the light receiving unit 82 is disposed on the Y axis on the negative side with respect to the origin O, and the light receiving unit 83 is disposed on the origin O. Arranged on the negative X-axis, the light receiving portion 84 is arranged on the positive Y-axis with respect to the origin O.

  The light emitting unit 85 is disposed on the installation surface 20a so as to be positioned on a straight line that is orthogonal to the XY plane and passes through the origin O.

  The diffusion plate 26 is a light diffusion member that changes the density of light received by each of the light receiving units 81 to 84 by moving between the light receiving units 81 to 84 and the light emitting unit 85 by an operation input.

  The light guide unit 27 refracts the irradiation light emitted from the light emitting surface of the light emitting unit on the inner side of the convex surface of the light guide unit 27 and guides it to the light receiving surfaces of the light receiving units 81 to 84. The shape of the light guide 27 may be a dome shape or other shapes. Further, the light guide unit 27 is installed on the installation surface 20a side of the substrate 20, and in the case of FIG. 45, the light guide unit 27 is installed on the light emitting surface 85a of the light emitting unit 85. Therefore, as shown in FIG. 46, light can be received by the light receiving unit 27 at four light receiving units located in four different directions.

  FIG. 47 is a block diagram illustrating a main part of the operation input detection device that detects an operation input input via the operation input device 4. The operation input detection device includes the operation input device 4 and detection means for detecting the movement of the diffusion plate 26 based on an output signal corresponding to the density of light received by the light receiving units 81 to 84.

  The detection means for detecting the movement of the diffusion plate 26 represents the movement of the diffusion plate 26 based on an output signal corresponding to the density of light received by the light receiving units 81 to 84 in synchronization with the light emission of the light emitting unit 85, for example. The operation mode is detected. The CPU 60 periodically causes the light emitting unit 85 to emit light, and evaluates the signal received by each light receiving unit in synchronization with the light emission of the light emitting unit 85 as the transmitted light amount (density) of the light transmitted through the diffusion plate 26.

  In the case of the operation input device 4, by setting one light emitting point and four light receiving points, it is not necessary to sequentially emit light according to the light receiving timing as in the above-described embodiment. Since the emitted light beam is dispersed in each direction so that it can be received simultaneously in each direction, the density of the light received by each light receiving unit can be evaluated simultaneously. That is, compared with the case of the operation input device 2, theoretically, the position of the diffusion plate 26 and the rotation key 31 and the detection speed of the rotation can be quadrupled.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-described embodiments, and various modifications, improvements, and modifications can be made to the above-described embodiments without departing from the scope of the present invention. Substitutions can be added.

  For example, an embodiment of the operation input device and the operation input detection device according to the present invention may be a combination of the above-described embodiments.

  In the operation input device 1 of the first embodiment, the case where the density of the received light is changed by sliding the diffusion plate 14 is shown. However, the light received by rotating the diffusion plate 14 is shown. The density may be changed. Further, in the operation input device in which the annular diffusion plate is configured, the annular diffusion plate may be rotated only without sliding.

  Moreover, not only a finger but a thing operated with a palm may be used. Moreover, you may operate with a toe or a sole. Further, the operation surface of the key that is the operation unit may be a flat surface, a concave surface, or a convex surface.

  Further, as an embodiment in which the plate thicknesses of the adjacent side surfaces of the annular diffusion member are different from each other, an example in which the outer shape of the annular diffusion plate is formed in a polygonal shape has been shown, but the annular diffusion plate 28 shown in FIG. As in -1, the inner shape may be a polygon.

1, 2, 3, 4 Operation input device 10, 20 Substrate 10a, 20a Installation surface 11, 21, 22, 23, 24 Light emitting portion 11a Light emitting surface 11b Input portion 12, 25 Light receiving portion 12a Light receiving surface 12b Output portion 13, 27 Light guide 14, 26, 28, 28-1, 29 Diffusion plate 30, 31 Slide key 30a Operation surface 30b Opposing surface 32 Rotating key 33 Slide plate 40, 42 Case 41 Slide groove 43 Slide key holder 44 Slide plate holder 60 CPU
61, 76, 77, 78, 79 Output port 63 AD port 66, 71, 72, 73, 74 Drive circuit 67, 75 Receiving circuit 81, 82, 83, 84 Light receiving part 85 Light emitting part 85a Light emitting surface 91, 92, 93 , 94 Light guide unit 101, 102, 103, 104 Receiver circuit 105 Drive circuit 111 Output port 121, 122, 123, 124 AD port

Claims (13)

A base part in which the light emitting part and the light receiving part are spaced apart; and
A light diffusing member that changes the density of light received by the light receiving unit by moving between the light emitting unit and the light receiving unit by an operation input;
An operation input device comprising: an output unit that outputs an output signal corresponding to the density.   The operation input device according to claim 1, wherein the diffusion member slides and / or rotates. The diffusion member is an annular diffusion member having a plurality of side surfaces,
The operation input device according to claim 1 or 2, wherein the light emitting unit and the light receiving unit are separated from each other by an inner side and an outer side with respect to a side surface of the annular diffusion member. A plurality of the light emitting units;
Each of the light emitting parts is arranged outside with respect to the side surface of the annular diffusion member,
The operation input device according to claim 3, wherein the light receiving unit is installed inside a side surface of the annular diffusion member. A plurality of the light receiving portions;
The operation input device according to claim 3, wherein each of the light receiving units is installed outside with respect to a side surface of the annular diffusion member.   6. The length of a portion having a constant plate thickness on one side surface of the annular diffusion member is a length greater than or equal to a maximum displacement amount by which the annular diffusion member can be displaced in a direction of the length of the constant portion. The operation input device according to any one of the above.   The operation input device according to any one of claims 3 to 6, wherein plate thicknesses of adjacent side surfaces of the annular diffusion member are different from each other.   The operation input device according to claim 7, wherein a plate thickness of one side surface of the annular diffusion member is different from any plate thickness on both side surfaces of the one side surface. The operation input device according to any one of claims 1 to 8,
An operation input detection device comprising: a detection unit configured to detect a movement of the diffusion member based on an output signal corresponding to a density of light received by the light receiving unit.   The operation input detection device according to claim 9, wherein the movement of the diffusing member is detected based on an output signal corresponding to a density of light received by the light receiving unit in synchronization with light emission of the light emitting unit. The operation input device according to claim 4,
An operation input detection apparatus comprising: a detecting unit that detects a movement of the diffusing member based on an output signal corresponding to a density of light received by the light receiving unit in synchronization with light emission of each of the light emitting units. The operation input device according to claim 5;
An operation input detection device comprising: a detection unit configured to detect a movement of the diffusion member based on an output signal corresponding to a density of light received in synchronization with light emission of the light emitting unit. The operation input device according to claim 7 or 8,
An operation input detection apparatus comprising: a detection unit configured to detect the position and rotation of the diffusing member based on an output signal corresponding to a density of light received by the light receiving unit.