Wiring devices

Abstract

The present disclosure addresses the problem of providing a wiring instrument which makes it possible to improve the uniformity of light emission intensity of an emission surface. A light guide member (30) of a wiring instrument (1) has a first incidence surface (35) on which light emitted from a first light source part (521) is incident, a second incidence surface (36) on which light emitted from a second light source part (522) is incident, and an emission surface (33) provided on the reverse side from the first incidence surface (35) and the second incidence surface (36). The light guide member (30) guides the light emitted from the first light source part (521) from the first incidence surface (35) to the emission surface (33) and emits the guided light to the outside from the emission surface (33), and guides the light emitted from the second light source part (522) from the second incidence surface (36) to the emission surface (33) and emits the guided light to the outside from the emission surface (33). The first incidence surface (35) and the second incidence surface (36) are provided at both ends of the light guide member (30). The first light source part (521) and the second light source part (522) are disposed at positions respectively facing the first incidence surface (35) and the second incidence surface (36).

Description

[Technical field]

[0001] The present disclosure relates generally to a wiring device, and more particularly to a wiring device having an exit surface that emits light. [Background technology]

[0002] The switch described in Patent Document 1 includes a switch body in which a contact device is housed in a housing, a light emitting source provided in the switch body, an operating handle disposed on the front side of the switch body, a display unit that emits light from the light emitting source to the outside through a display surface, and a prism having a light collecting portion. The light collecting portion guides the light from the light emitting source to the display surface of the display unit between the switch body and the operating handle. The light collecting portion has a first reflecting surface adjacent to the incident surface through which the light from the light emitting source is incident and that forms an angle of 45° with respect to the incident surface, and a second reflecting surface that reflects the light reflected by the first reflecting surface toward the display surface.

[0003] Incidentally, in a switch such as that described in Patent Document 1, if the display surface is enlarged, there is a possibility that the luminescence intensity on the display surface becomes non-uniform. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-151402 A Summary of the Invention

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and has an object to provide a wiring device that can improve the uniformity of the luminous intensity of an emission surface from which light is emitted.

[0006] A wiring device according to an aspect of the present disclosure includes a first light source unit and a second light source unit that respectively emit light, and a light guide member. The light guide member has a first incident surface into which light emitted from the first light source unit is incident, a second incident surface into which light emitted from the second light source unit is incident, and an exit surface provided on the opposite side to the first incident surface and the second incident surface. The light guide member guides the light emitted from the first light source unit from the first incident surface to the exit surface and emits the light to the outside from the exit surface. The light guide member guides the light emitted from the second light source unit from the second incident surface to the exit surface and emits the light to the outside from the exit surface. The first incident surface and the second incident surface are provided at both ends of the light guide member in one direction along the exit surface. The first light source unit and the second light source unit are disposed at positions facing the first incident surface and the second incident surface, respectively. The light emitted from the first light source unit and the second light source unit are overlapped on the emission surface. A wiring device according to an aspect of the present disclosure includes a first light source unit and a second light source unit that respectively emit light, and a light guide member. The light guide member has a first incident surface into which light emitted from the first light source unit is incident, a second incident surface into which light emitted from the second light source unit is incident, and an exit surface provided on the opposite side to the first incident surface and the second incident surface. The light guide member guides the light emitted from the first light source unit from the first incident surface to the exit surface and emits the light to the outside from the exit surface. The light guide member guides the light emitted from the second light source unit from the second incident surface to the exit surface and emits the light to the outside from the exit surface. The first incident surface and the second incident surface are provided at both ends of the light guide member in one direction along the exit surface. The first light source unit and the second light source unit are disposed at positions facing the first incident surface and the second incident surface, respectively. The wiring device further includes a detection unit having a light-emitting unit that emits light and a light-receiving unit that outputs an electrical signal according to the incident light. The light-guiding member has a third entrance surface facing the light-emitting unit and a second exit surface facing the light-receiving unit. The light-guiding member guides the light emitted from the light-emitting unit from the third entrance surface to a first exit surface that is the exit surface, and emits the light to the outside from the first exit surface. The light-guiding member guides the light incident from the first exit surface from the first exit surface to the second exit surface, and emits the light to the light-receiving unit. The detection unit is disposed between the first light source unit and the second light source unit. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is an exploded perspective view of a wiring accessory according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is a side cross-sectional view of the wiring device. [Diagram 3] FIG. 3 is an enlarged view of part A in FIG. [Figure 4] FIG. 4 is a block diagram of the wiring device. [Diagram 5] FIG. 5 is a bottom view of the light guide member included in the wiring fixture. [Figure 6] FIG. 6 is a rear view of the light guide member included in the wiring fixture. [Figure 7] FIG. 7 is an external perspective view of a light guide member included in the wiring fixture. [Figure 8] FIG. 8 is a cross-sectional view of the wiring device. [Figure 9] FIG. 9 is an enlarged view of part B in FIG. [Figure 10] FIG. 10 is an external perspective view of the wiring device. [Figure 11]FIG. 11 is a front view of the wiring device. [Figure 12] FIG. 12 is a rear view of the wiring device. [Figure 13] FIG. 13 is a rear view of an outer cover provided in the wiring device. [Figure 14] FIG. 14 is an enlarged view of part A in FIG. [Figure 15] FIG. 15 is a side cross-sectional view of the wiring accessory not including the recessed portion included in the wiring accessory of the above embodiment. [Figure 16] FIG. 16 is a side cross-sectional view of a wiring accessory according to the first modification. [Figure 17] FIG. 17 is an external perspective view of a light-guiding member included in a wiring accessory according to the second modification. [Figure 18] FIG. 18 is a cross-sectional view of a light-guiding member included in a wiring accessory according to the second modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] A wiring device 1 according to an embodiment of the present disclosure will be described in detail with reference to the drawings. Note that each figure described in the following embodiment is a schematic diagram, and the size and thickness ratio of each component in each figure does not necessarily reflect the actual dimensional ratio. In addition, the embodiment and modified example described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiment and modified example. Even if it is not the embodiment and modified example, various modifications are possible according to the design, etc., as long as it does not deviate from the technical idea of ​​the present disclosure. In addition, the following embodiment (including modified examples) may be realized by appropriately combining them.

[0009] (1) Overview First, an overview of a wiring device 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0010] As shown in FIG. 1, the wiring device 1 according to this embodiment includes a proximity sensor 10 used to detect a detection target such as a human body or an object, and is used, for example, as a switch for switching on / off a lighting device or the like.

[0011] 2 and 3, the wiring device 1 includes a first light source unit 521 and a second light source unit 522 that respectively emit light, and a light guide member 30. The light guide member 30 has a first incident surface 35 into which the light emitted from the first light source unit 521 is incident, a second incident surface 36 into which the light emitted from the second light source unit 522 is incident, and an exit surface 33 provided on the opposite side to the first incident surface 35 and the second incident surface 36. The light guide member 30 guides the light emitted from the first light source unit 521 from the first incident surface 35 to the exit surface 33 and emits the light from the exit surface 33 to the outside. The light guide member 30 guides the light emitted from the second light source unit 522 from the second incident surface 36 to the exit surface 33 and emits the light from the exit surface 33 to the outside. The first incident surface 35 and the second incident surface 36 are provided at both ends of the light-guiding member 30 in one direction (second arrangement direction DR2) along the exit surface 33. The first light source unit 521 and the second light source unit 522 are disposed at positions facing the first incident surface 35 and the second incident surface 36, respectively.

[0012] According to the above configuration, the light emitted from each of the first light source unit 521 and the second light source unit 522 can be guided to the exit surface 33 from each of the first incident surface 35 and the second incident surface 36. As a result, even if the exit surface 33 is enlarged, the uniformity of the light emission intensity on the exit surface 33 can be improved compared to the case where the light emitted from a single light source unit is guided from a single incident surface by overlapping the light emitted from each of the first light source unit 521 and the second light source unit 522 on the exit surface 33.

[0013] (2)Details The wiring device 1 according to the embodiment will be described in detail below. The configuration of the wiring device 1 will be described in detail below with reference to the drawings. In the following description, in FIG. 1, the X-axis direction is defined as the left-right direction, the Y-axis direction is defined as the front-rear direction (depth direction), and the Z-axis direction is defined as the up-down direction. Furthermore, the positive direction in the X-axis direction is defined as the right side, the positive direction in the Y-axis direction is defined as the front side, and the positive direction in the Z-axis direction is defined as the top side. However, these directions are merely examples, and are not intended to limit the directions in which the proximity sensor and the wiring device are used. Moreover, the arrows indicating the respective directions in the drawings are merely depicted for the purpose of explanation, and do not have any substance.

[0014] (2.1) Wiring device configuration First, the configuration of the proximity sensor 10 included in the wiring device 1 will be described.

[0015] The proximity sensor 10 includes a detection unit 20 and a light guide member 30, as shown in FIG.

[0016] As shown in FIG. 4, the detection unit 20 has a light-emitting unit 21 that emits light, and a light-receiving unit 22 that outputs an electrical signal according to the incident light.

[0017] As shown in Figs. 5 to 9, the light guide member 30 has a first region 31 facing the light emitter 21 and a second region 32 facing the light receiver 22. The first region 31 and the second region 32 are provided along an arrangement direction DR1 (see Fig. 9) in which the light emitter 21 and the light receiver 22 are arranged. As shown in Fig. 8, the light guide member 30 has a third region 33 facing a space A1 in which a detection target B1 of the detection unit 20 exists. The third region 33 is, for example, rectangular with long sides in the vertical direction. In the following description, the first region 31 may be referred to as a third entrance surface 31, the second region 32 as a second exit surface 32, and the third region 33 as an exit surface 33 or a first exit surface 33.

[0018] The light guiding member 30 guides the light emitted from the light emitting unit 21 from the first region 31 (third incident surface 31) to the third region 33 (first exit surface 33), and emits the light to the outside from the first exit surface 33. The light guiding member 30 also guides the light reflected by the detection object B1, which is incident from the first exit surface 33, from the first exit surface 33 to the second exit surface 32, and emits the light to the light receiving unit 22.

[0019] Next, an internal circuit of the wiring device 1 will be described with reference to Fig. 4 etc. Fig. 4 is a schematic block diagram of the wiring device 1 of the present embodiment.

[0020] The wiring device 1 includes a detection unit 20 and a control unit 50. The wiring device 1 further includes a pair of first terminals T11, T12, a pair of second terminals T21, T22, a switch 51, a display unit 52, a brightness sensor 53, a temperature sensor 54, and a power supply unit 55.

[0021] A power source 2 such as a commercial AC power source is connected to the pair of first terminals T11, T12 via electric wires.

[0022] A device 3 such as a lighting fixture is connected to the pair of second terminals T21, T22 via electric wires.

[0023] The power supply unit 55 steps down the AC voltage input via the first terminals T11 and T12, and then rectifies and smooths it to convert it into a DC voltage of a predetermined voltage value. The power supply unit 55 supplies voltages necessary for operation to the internal circuits such as the detection unit 20, the control unit 50, the display unit 52, the brightness sensor 53, and the temperature sensor 54.

[0024] The switch 51 includes a semiconductor switch such as a metal-oxide-semiconductor field-effect transistor (MOSFET) or a three-terminal thyristor, and is controlled to be turned on or off by the control unit 50. The switch 51 is electrically connected between the second terminal T22 and the first terminal T12. The first terminal T11 and the second terminal T21 are also electrically connected via an internal conductive member. As a result, the power source 2 and the device 3 are connected in series between both ends of the switch 51, and the on / off of the switch 51 switches between a state in which a voltage is supplied to the device 3 and a state in which the voltage supply to the device 3 is cut off.

[0025] As described above, the detection unit 20 includes the light emitting unit 21 and the light receiving unit 22. The detection unit 20 further includes a detection circuit .

[0026] The light-emitting unit 21 has, for example, an infrared light-emitting diode that emits infrared light. The light-emitting unit 21 may be configured to constantly emit infrared light, or may be configured to emit infrared light at predetermined time intervals. The light emitted from the light-emitting unit 21 enters the light-guiding member 30 from the third entrance surface 31 and is guided to the first exit surface 33. Here, the wiring device 1 further includes a light-transmitting cover 60 (see FIG. 8 ) that is disposed opposite the first exit surface 33 and has optical transparency. The light guided to the first exit surface 33 is emitted to the space A1 via the light-transmitting cover 60.

[0027] The light receiving unit 22 has, for example, a photodiode sensitive to light in the infrared region. When the light emitted from the second emission surface 32 of the light guide member 30 enters the light receiving unit 22, the light receiving unit 22 converts the incident light into an electrical signal and outputs it to the detection circuit 23. The light receiving unit 22 outputs to the detection circuit 23 an electrical signal with a voltage level according to the amount of light received.

[0028] The detection circuit 23 detects the presence or absence of a detection object B1 (such as a part of a human body) based on the electrical signal input from the light receiving unit 22. When the voltage level of the electrical signal output from the light receiving unit 22 exceeds a predetermined threshold, the detection circuit 23 outputs a detection signal indicating the presence of the detection object B1 to the control unit 50. On the other hand, when the voltage level of the electrical signal output from the light receiving unit 22 is equal to or lower than the predetermined threshold, the detection circuit 23 outputs a detection signal indicating the absence of the detection object B1 to the control unit 50.

[0029] The display unit 52 includes a first light source unit 521 and a second light source unit 522 that each emit light. Each of the first light source unit 521 and the second light source unit 522 is, for example, a light emitting diode (LED). However, the first light source unit 521 and the second light source unit 522 are not limited to LEDs and may be, for example, an organic EL (Electro-Luminescence) element or the like. When the device 3, which is a lighting fixture, is turned off, the control unit 50 lights up the first light source unit 521 and the second light source unit 522, thereby causing the protrusion 61 (see FIG. 1) of the translucent cover 60 to emit light. As a result, even when the surroundings are dark, the protrusion 61 shines brightly, so that the user can grasp the position of the protrusion 61 (i.e., the position of the wiring fixture 1).

[0030] The brightness sensor 53 has sensitivity to light in the near-infrared region. The brightness sensor 53 has, for example, a photodiode, detects the brightness of the space A1, and outputs the detection result to the control unit 50.

[0031] The temperature sensor 54 detects the temperature around the wiring accessory 1. The temperature sensor 54 has a temperature-sensing element such as a thermistor. The temperature sensor 54 detects the temperature of the detection unit 20, for example, and outputs the detection result to the control unit 50.

[0032] The control unit 50 mainly comprises a computer system having one or more processors and a memory. The functions of the control unit 50 are realized by the processor of the computer system executing a program recorded in the memory of the computer system. The program may be recorded in the memory, or may be provided via a telecommunication line such as the Internet, or may be provided by recording it on a non-transitory recording medium such as a memory card.

[0033] The control unit 50 controls the on / off of the switch 51 based on the detection result of the detection unit 20. Furthermore, the control unit 50 turns off the first light source unit 521 and the second light source unit 522 when the switch 51 is on (when the lighting fixture is on), and turns on the first light source unit 521 and the second light source unit 522 when the switch 51 is off (when the lighting fixture is off).

[0034] In addition, the control unit 50 has a function of adjusting the threshold of the detection circuit 23 according to the detection results of the brightness sensor 53 and the temperature sensor 54. For example, the threshold of the detection circuit 23 can be switched between two levels: a first threshold and a second threshold higher than the first threshold.

[0035] The control unit 50 controls the device 3 based on the detection result of the detection unit 20 and the detection result of the brightness sensor 53. Specifically, when the brightness detected by the brightness sensor 53 is darker than a predetermined first reference value, the control unit 50 sets the threshold of the detection circuit 23 to a first threshold value. Also, when the brightness detected by the brightness sensor 53 is equal to or brighter than the first reference value, the control unit 50 sets the threshold of the detection circuit 23 to a second threshold value. When the surrounding brightness is equal to or brighter than the first reference value, the threshold of the detection circuit 23 is set to a second threshold value higher than the first threshold value, so that erroneous detection by the detection circuit 23 due to external light (e.g., sunlight, etc.) can be suppressed.

[0036] The control unit 50 controls the device 3 based on the detection result of the detection unit 20 and the detection result of the temperature sensor 54. Specifically, when the temperature detected by the temperature sensor 54 is lower than a predetermined second reference value, the control unit 50 sets the threshold of the detection circuit 23 to the first threshold. When the temperature detected by the temperature sensor 54 is equal to or equal to the second reference value, the control unit 50 sets the threshold of the detection circuit 23 to the second threshold. The output of the detection circuit 23 tends to increase with an increase in temperature, but when the temperature detected by the temperature sensor 54 is equal to or equal to the second reference value, the threshold of the detection circuit 23 is set to the second threshold, which is higher than the first threshold, so that erroneous detection by the detection circuit 23 can be suppressed.

[0037] Next, the structure of the wiring device 1 will be described with reference to FIGS.

[0038] 1 and 10, the wiring device 1 further includes a case 70 having a body 71 and a cover 72, and a front panel 90. The wiring device 1 is attached to a wall 200 (see FIG. 8) of a facility using a mounting frame 100 made of synthetic resin, for example.

[0039] The mounting frame 100 is, for example, a mounting frame dedicated to a wide handle type switch standardized by the Japanese Industrial Standards. A rectangular window hole 101 is provided in the center of the mounting frame 100, and the case 70 of the wiring device 1 is fitted into this window hole 101. The mounting frame 100 has a pair of side walls 102 on both the left and right sides of the window hole 101. A total of eight fitting holes 103 are provided in each of the pair of side walls 102 at intervals in the longitudinal direction (up and down direction). In addition, mounting pieces 104 are provided on both the top and bottom sides of the window hole 101. A long hole 105 is provided in the center of each mounting piece 104, into which a screw is inserted to fix the mounting frame 100 to a switch box embedded in a wall 200. Two round holes 106 are provided in each mounting piece 104 at intervals in the left and right direction on the opposite side of the long hole 105 from the window hole 101. Further, each mounting piece 104 has a screw hole 107 between the two round holes 106 for mounting a rectangular plate frame that covers the front surface of the mounting frame 100 .

[0040] The mounting frame 100 is fixed to a switch box embedded in a wall 200 with screws passed through long holes 105, or is fixed to a wall such as plasterboard using metal clips. The mounting frame 100 is also fixed to a wooden wall or the like with tapping screws passed through round holes 106. A plate frame is placed in front of the mounting frame 100, and the plate frame is fixed to the mounting frame 100 by screwing screws passed through holes in the plate frame into screw holes 107. The plate frame is not shown in FIG. 1.

[0041] The case 70 is formed into a rectangular box shape by combining a body 71 and a cover 72 .

[0042] The body 71 constitutes the rear part of the case 70. The body 71 is formed of, for example, synthetic resin in the shape of a rectangular box with an opening on the front. Two electric wire insertion holes 75 into which electric wires are inserted are provided on each of the left and right sides of the rear surface of the body 71 (see FIG. 12). Of each pair of electric wire insertion holes 75 provided on the left and right sides of the rear surface of the body 71, two electric wires to be connected to the first terminals T11 and T12 are inserted into the two electric wire insertion holes 75 on one side, and two electric wires to be connected to the second terminals T21 and T22 are inserted into the remaining two electric wire insertion holes 75.

[0043] The cover 72 constitutes the front part of the case 70. The cover 72 is made of, for example, synthetic resin and is formed in a rectangular box shape with an opening on the rear surface. A square window hole 76 for exposing the first emission surface 33 of the light guide member 30 is provided in the center of the front surface of the cover 72. Two protrusions 77 are provided on the left and right side walls of the cover 72, respectively, to be fitted into two fitting holes 103 provided in the center in the up-down direction on the left and right side walls 102 of the mounting frame 100.

[0044] A pair of protruding pieces 74 protruding rearward from both left and right ends is provided on the upper and lower walls of the cover 72. Meanwhile, a pair of projections 73 is provided on the upper and lower walls of the body 71. The body 71 and the cover 72 are butted together in the front-to-rear direction and the projections 73 of the body 71 are fitted into the holes of the protruding pieces 74 of the cover 72, whereby the body 71 and the cover 72 are joined together to assemble the case 70.

[0045] 1, components such as a first substrate 81, a second substrate 82, and a light guiding member 30 are accommodated inside the case 70. The second substrate 82 is accommodated inside the case 70 so as to be located behind the first substrate 81.

[0046] Components such as the detection unit 20, the control unit 50, the display unit 52, the brightness sensor 53, and the temperature sensor 54 are mounted on the first substrate 81. The detection unit 20 is mounted at a position corresponding to the window hole 76 of the cover 72. Here, the light emitting unit 21 and the light receiving unit 22 of the detection unit 20 are arranged in an arrangement direction DR1 along the left-right direction. The first substrate 81 is provided with a long hole 83 on the right side of the detection unit 20, and a round hole 84 on the left side of the detection unit 20. The display unit 52 includes a first light source unit 521 and a second light source unit 522, which are, for example, green light emitting diodes. The first light source unit 521 is disposed on the upper side of the detection unit 20, and the second light source unit 522 is disposed on the lower side of the detection unit 20. In other words, the detection unit 20 is disposed between the first light source unit 521 and the second light source unit 522. In this embodiment, the arrangement direction DR1 (first arrangement direction DR1) in which the light-emitting units 21 and the light-receiving units 22 are arranged is the X-axis direction in Fig. 1, and the second arrangement direction DR2 (see Fig. 3) in which the first light source units 521 and the second light source units 522 are arranged is the Z-axis direction in Fig. 1. In other words, the first arrangement direction DR1 and the second arrangement direction DR2 are perpendicular to each other. This makes it possible to reduce the arrangement area of ​​the light-emitting units 21, the light-receiving units 22, the first light source units 521, and the second light source units 522 on the first substrate 81.

[0047] Components such as first terminals T11, T12, second terminals T21, T22, and a power supply unit 55 are mounted on the second substrate 82. The first terminals T11, T12 and the second terminals T21, T22 are disposed at positions corresponding to two pairs of wire insertion holes 75 provided on the rear surface of the body 71.

[0048] The light guide member 30 is accommodated inside the case 70 so as to be located in front of the detection unit 20, the first light source unit 521, and the second light source unit 522.

[0049] 5 and 7, the light guide member 30 includes a rectangular parallelepiped main portion 300 and two light guide sections 40 (a first light guide section 40A and a second light guide section 40B) provided at a first end section 301 on the right side and a second end section 302 on the left side of the main portion 300, respectively. The first end section 301 and the second end section 302 of the light guide member 30 are located on both sides of the detection section 20 in the first arrangement direction DR1. The light guide section 40 is provided at least one of the first end section 301 and the second end section 302, and guides noise light traveling inside the light guide member 30 toward a first surface 30A (see FIG. 6), which is the rear surface of the main portion 300, to a fourth region 34 and emits the noise light from the fourth region 34 to the outside.

[0050] As shown in FIG. 6, the first surface 30A is provided with a third incident surface 31 in an area facing the light emitting section 21 of the detection section 20, into which the light from the light emitting section 21 is incident.

[0051] A second emission surface 32 is provided on the first surface 30A of the main section 300 in an area facing the light receiving section 22 of the detection section 20, and light emitted from inside the light guide member 30 to the outside through the second emission surface 32 is incident on the light receiving section 22. Here, the second emission surface 32 is provided with a light collecting section 321 that collects light transmitted through the second emission surface 32 on the light receiving section 22. The light collecting section 321 includes a convex lens-shaped collecting lens that protrudes toward the light receiving section 22. Note that the light collecting section 321 is not limited to one that includes a convex lens-shaped collecting lens, and may be a lens in a Fresnel lens shape.

[0052] In addition, the first surface 30A of the main part 300 is provided with two light entrance surfaces (the first entrance surface 35 and the second entrance surface 36) on both sides of the third entrance surface 31 and the second exit surface 32 in a direction (up-down direction) perpendicular to the first arrangement direction DR1. Here, the direction perpendicular to the arrangement direction DR1 is the second arrangement direction DR2 in which the first light source unit 521 and the second light source unit 522 are arranged, as described above. That is, as shown in FIG. 3, the first entrance surface 35 and the second entrance surface 36 are arranged in the second arrangement direction DR2. Here, "orthogonal" in the present disclosure means that the two are substantially orthogonal to each other, that is, the two are strictly orthogonal to each other, and further means that the angle between the two is within a range of, for example, less than about 15 degrees with respect to 90 degrees. The first entrance surface 35 and the second entrance surface 36 face the first light source unit 521 and the second light source unit 522 mounted on the first substrate 81, respectively. In this embodiment, the first entrance surface 35 and the second entrance surface 36 are parallel to the first exit surface 33. That is, the second arrangement direction DR2 in which the first entrance surface 35 and the second entrance surface 36 are aligned is a direction along the first exit surface 33. Here, "parallel" in the present disclosure refers to a relationship in which the two are approximately parallel, that is, the two are strictly parallel, and the angle between the two is within a range of, for example, less than about 15 degrees.

[0053] The light emitted from the first light source unit 521 enters the inside of the light guiding member 30 through the first incident surface 35, is guided by the light guiding member 30 to the first exit surface 33, and is emitted to the outside from the first exit surface 33. Meanwhile, the light emitted from the second light source unit 522 enters the inside of the light guiding member 30 through the second incident surface 36, is guided by the light guiding member 30 to the first exit surface 33, and is emitted to the outside from the first exit surface 33.

[0054] The first entrance surface 35 and the second entrance surface 36 have an uneven structure that diffuses the incident light. The uneven structure is formed, for example, by sandblasting. In the uneven structure formed by sandblasting, the average distance between adjacent convex portions is, for example, about 0.15 mm. The uneven structure may also be formed by providing a plurality of hemispherical depressions with a radius of about 0.2 mm on the first entrance surface 35 and the second entrance surface 36. Due to the uneven structure of the first entrance surface 35 and the second entrance surface 36, the light incident on the first entrance surface 35 from the first light source unit 521 and the light incident on the second entrance surface 36 from the second light source unit 522 are diffused and guided to the first exit surface 33.

[0055] The light guide member 30 guides at least a part of the light emitted from the first light source unit 521 to an exit position on the first exit surface 33 that is closer to the second light source unit 522 than the entrance position on the first entrance surface 35 when viewed from the front of the first exit surface 33. As an example, as shown in FIG. 3, light that passes through an optical path C10 out of the light emitted from the first light source unit 521 will be described. The light that passes through the optical path C10 is emitted from the first light source unit 521 in a direction inclined upward with respect to the front-rear direction. In this embodiment, the refractive index of the light guide member 30 is larger than that of air, and the light that passes through the optical path C10 is refracted downward when it enters the first entrance surface 35, and is then reflected by the upper surface 303 of the main unit 300 and guided to the first exit surface 33. At this time, the exit position P12 of the first exit surface 33 of the light passing through the optical path C10 is closer to the second light source unit 522 as viewed from the front of the first exit surface 33 than the incident position P11 on the first entrance surface 35, and the light is emitted obliquely downward from the exit position P12. Similarly, the light guide member 30 guides at least a part of the light emitted from the second light source unit 522 to an exit position on the first exit surface 33 that is closer to the first light source unit 521 than the incident position on the second entrance surface 36 as viewed from the front of the first exit surface 33. As an example, as shown in FIG. 3, the light passing through the optical path C20 out of the light emitted from the second light source unit 522 will be described. The light passing through the optical path C20 is emitted from the second light source unit 522 in a direction inclined downward with respect to the front-rear direction. The light passing through the optical path C20 is refracted upward when it enters the second entrance surface 36, and is then reflected by the lower surface 304 of the main part 300 and guided to the first exit surface 33. At this time, the exit position P22 of the first exit surface 33 of the light passing through the optical path C20 is closer to the first light source unit 521 when viewed from the front of the first exit surface 33 than the entrance position P21 on the second entrance surface 36, and the light is emitted obliquely upward from the exit position P22. This can improve the extraction efficiency of the light emitted from the first light source unit 521 and the second light source unit 522 from the center of the first exit surface 33. In addition, the light emitted from the first light source unit 521 includes light that is not reflected by the upper surface 303 of the main part 300 and is guided to the upper end of the first exit surface 33. The light emitted from the second light source unit 522 includes light that is not reflected by the lower surface 304 of the main unit 300 and is guided to the lower end of the first emission surface 33 .That is, the light emitted from the first light source unit 521 is mainly guided from the upper end to the center of the first exit surface 33, and the light emitted from the second light source unit 522 is mainly guided from the lower end to the center of the first exit surface 33. This allows the light to be guided to the entire first exit surface 33, improving the uniformity of the luminous intensity of the first exit surface 33. Note that in Fig. 3, the lines indicating the optical paths C10 and C20 are shown merely for the purpose of explanation and do not have any substance.

[0056] The light from the first light source unit 521 and the second light source unit 522 emitted from the first exit surface 33 is emitted to the space A1 through the translucent cover 60, so that a user present in the space A1 can see the light from the first light source unit 521 and the second light source unit 522 emitted from the first exit surface 33 through the translucent cover 60.

[0057] The front surface of the main part 300 is formed in a rectangular shape, and serves as a first light exit surface 33. The front end of the main part 300 is exposed forward from a window hole 76 of the cover 72. The first light exit surface 33 on the front surface of the main part 300 faces an opposing surface 64 (see FIG. 3 ) on the rear surface of the light-transmitting cover 60, and the light-guiding member 30 faces the space A1 via the light-transmitting cover 60.

[0058] 5, light guiding section 40 (first light guiding section 40A) provided at first end 301 includes first protrusion 41 protruding rightward from first end 301 along arrangement direction DR1, and second protrusion 42 protruding from the rear of first protrusion 41 toward detection section 20 (i.e., backward). Light guiding section 40 (first light guiding section 40A) provided at first end 301 further includes third protrusion 43 protruding from second protrusion 42 in the opposite direction to detection section 20 (i.e., rightward) in arrangement direction DR1. A rectangular parallelepiped fitting protrusion 45 protruding downward is provided on the lower surface of light guiding section 40 (first light guiding section 40A) provided at first end 301.

[0059] Light guiding section 40 (second light guiding section 40B) provided at second end 302 includes first protrusion 41 protruding leftward from second end 302 along arrangement direction DR1, and second protrusion 42 protruding from the rear of first protrusion 41 toward detection section 20 (i.e., rearward). Light guiding section 40 (second light guiding section 40B) provided at second end 302 further includes third protrusion 43 protruding from second protrusion 42 in the opposite direction (i.e., leftward) to detection section 20 in arrangement direction DR1. A cylindrical fitting protrusion 46 protruding downward is provided on the lower surface (i.e., the lower surfaces of second protrusion 42 and third protrusion 43) of light guiding section 40 (second light guiding section 40B) provided at second end 302.

[0060] As described above, the light guiding section 40 includes the first protrusion 41 protruding from both the first end 301 and the second end 302 along the arrangement direction DR1, but the first protrusion 41 may be provided on only one of the first end 301 and the second end 302. In other words, it is sufficient for the light guiding section 40 to include the first protrusion 41 protruding from at least one of the first end 301 and the second end 302 along the arrangement direction DR1, and the fourth region 34 includes at least a part of the surface of the first protrusion 41.

[0061] Further, the light guide unit 40 includes the second protrusion 42 protruding from both the first end 301 and the second end 302 toward the detection unit 20, but the second protrusion 42 may be provided only on one of the first end 301 and the second end 302. In other words, the light guide unit 40 only needs to include the second protrusion 42 protruding from at least one of the first end 301 and the second end 302 toward the detection unit 20, and the fourth region 34 includes at least a part of the surface of the second protrusion 42. Here, the first protrusion 41 and the second protrusion 42 are provided in a continuous manner, and the noise light can escape from the first protrusion 41 to the second protrusion 42 and be emitted to the outside from the surface of the second protrusion 42. Here, the noise light includes light that is reflected by the first exit surface 33 and side surfaces of the light guiding member 30 and travels toward the first surface 30A (for example, light that travels through optical paths C3 and C4 in FIG. 9) out of the emitted light of the light-emitting unit 21 that enters the inside of the light guiding member 30 from the third entrance surface 31. The noise light also includes light that enters the inside of the light guiding member 30 from the first exit surface 33 and travels toward the first surface 30A, other than the reflected light from the detection object B1 (for example, light that travels through optical path C2 in FIG. 9).

[0062] In addition, the light-guiding section 40 further includes a third protrusion 43 that protrudes from the second protrusion 42 in the opposite direction to the detection section 20 in the arrangement direction DR1, and noise light can be allowed to escape from the second protrusion 42 to the third protrusion 43 and emitted to the outside from the surface of the third protrusion 43.

[0063] Here, in a state where the fitting protrusion 45 is inserted into the long hole 83 of the first substrate 81 and the fitting protrusion 46 is inserted into the round hole 84 of the first substrate 81, the light guide member 30 is fixed to the front surface of the first substrate 81 by an appropriate method such as adhesion or pressure bonding. In a state where the light guide member 30 is fixed to the front surface of the first substrate 81, the light emitter 21 of the detection unit 20 faces the first region 31, and the light receiver 22 of the detection unit 20 faces the second region 32. In addition, the first entrance surface 35 and the second entrance surface 36 of the light guide member 30 face the first light source unit 521 and the second light source unit 522, respectively.

[0064] Light from the light-emitting unit 21 enters the light-guiding member 30 from the third entrance surface 31 and exits to the outside from the first exit surface 33. When the light that has been exited to the outside from the first exit surface 33 is reflected by the detection object B1 present in the space A1 and enters the light-guiding member 30 from the first exit surface 33, the light that has entered the light-guiding member 30 is guided to the second exit surface 32, exits to the outside from the second exit surface 32, and enters the light-receiving unit 22.

[0065] 1, the case 70 is inserted from the rear side into a window hole 101 of the mounting frame 100, and the two protrusions 77 on the left and right side walls of the cover 72 are fitted into two fitting holes 103 provided in the left and right side walls 102, thereby attaching the case 70 to the mounting frame 100. When the case 70 is attached to the mounting frame 100, the front part of the cover 72 protrudes forward from the window hole 101 of the mounting frame 100.

[0066] As shown in Figures 1 and 11, the front panel 90 is made of synthetic resin and has a rectangular front surface. A square window hole 92 is provided in the center of the front surface of the front panel 90 at a position corresponding to the window hole 76 of the cover 72. As shown in Figure 13, two hooks 91 are provided on the rear surface of the front panel 90, protruding rearward from both left and right sides. The front panel 90 is attached to the front side of the cover 72 by hooking the left and right hooks 91 into recesses 78 provided on the left and right sides of the cover 72, respectively.

[0067] 1 and 13, a light-transmitting cover 60 and a light-shielding portion 65 are attached to the back surface of the front panel 90. In this embodiment, the light-transmitting cover 60 is disposed to face the first emission surface 33 of the light-guiding member 30.

[0068] The light-transmitting cover 60 is formed of a synthetic resin having light-transmitting properties, such as polycarbonate resin or acrylic resin. The light-transmitting cover 60 is formed in a rectangular shape when viewed from the front side (front). A platform-shaped protrusion 61 that is inserted into a window hole 92 of the front panel 90 is provided in the center of the front surface of the light-transmitting cover 60. In other words, the light-transmitting cover 60 has the protrusion 61 that protrudes in the opposite direction to the light-guiding member 30.

[0069] Here, the light-transmitting cover 60 is provided with a light diffusion section 611 that diffuses light that passes through the light-transmitting cover 60. The light diffusion section 611 has, for example, a fine uneven shape formed on the surface of the protruding section 61, and the light that passes through the light-transmitting cover 60 can be diffused by the light diffusion section 611. Angle θ1 in FIG. 9 is the spread angle of light emitted from the light-transmitting cover 60 when the light diffusion section 611 is not provided, and angle θ2 in FIG. 9 is the spread angle of light emitted from the light-transmitting cover 60 when the light diffusion section 611 is provided. When the light diffusion section 611 is not provided, the spread angle of the light emitted from the light-transmitting cover 60 is narrowed, so that even if a hand is held near the wiring device 1, if the position of the hand is off the front of the protruding section 61, it is difficult for the detection section 20 to detect the hand. In contrast, in this embodiment, a light diffusion portion 611 is provided on the protrusion 61, so that the spread angle of the light emitted from the light-transmitting cover 60 can be increased, which has the advantage of making it easier to detect the target human body (e.g., a hand).

[0070] Further, the light-transmitting cover 60 is provided with long holes 62 extending in the up-down direction on both the left and right sides of the protruding portion 61 .

[0071] As shown in FIG. 1, the wiring device 1 further includes a light-shielding portion 65 disposed on the opposite side of the light-guiding member 30 with respect to the light-transmitting cover 60. The light-shielding portion 65 is formed in a rectangular plate shape from a synthetic resin having a lower light-transmitting property than the front panel 90, and is formed in, for example, a black color that is less transparent to visible light. The light-shielding portion 65 is disposed between the rear surface of the front panel 90 and the light-transmitting cover 60. A rectangular through-hole 66 is provided in the center of the light-shielding portion 65 to allow the protruding portion 61 of the light-transmitting cover 60 to pass therethrough. That is, the protruding portion 61 is inserted into the through-hole 66 provided in the light-shielding portion 65. The light-shielding portion 65 also has two through-holes 67 provided at positions corresponding to the two long holes 62 provided in the light-transmitting cover 60.

[0072] As shown in FIG. 8 and FIG. 13, the back surface of the front panel 90 is provided with two protrusions 93 on both the left and right sides of the window hole 92, and the light-transmitting cover 60 and the light-shielding part 65 are attached to the back surface of the front panel 90 using the two protrusions 93. The light-shielding part 65 and the light-transmitting cover 60 are arranged on the back surface of the front panel 90 so that the through-hole 67 and the long hole 62 are inserted into the two protrusions 93, respectively. Here, the light-shielding part 65 is arranged between the back surface of the front panel 90 and the light-transmitting cover 60. Then, the tips of the two protrusions 93 protruding from the back surface of the light-transmitting cover 60 are crushed by applying pressure or heat to the tips, thereby fixing the light-transmitting cover 60 and the light-shielding part 65 to the back surface of the front panel 90. When the light-transmitting cover 60 and the light-shielding part 65 are attached to the front panel 90, the front surface of the protrusion 61 of the light-transmitting cover 60 is exposed forward from the window hole 92 of the front panel 90.

[0073] 3 and 9, the light-transmitting cover 60 has a recess 63 formed on a surface 64 facing the first emission surface 33 of the light-transmitting cover 60. Here, the first emission surface 33 and the recess 63 are arranged so as to overlap at least partially when viewed from the front of the light-transmitting cover 60. As an example, the recess 63 has a rectangular shape larger than the first emission surface 33 when viewed from the front of the light-transmitting cover 60. That is, as shown in FIG. 3, the width of the recess 63 in the vertical direction (second arrangement direction DR2) is larger than the width of the first emission surface 33 in the vertical direction. As shown in FIG. 9, the width of the recess 63 in the horizontal direction (first arrangement direction DR1) is larger than the width of the first emission surface 33 in the horizontal direction.

[0074] As shown in FIGS. 3 and 14, the recess 63 has a bottom surface 631, and an upper surface 632 and a lower surface 633 which are opposed to each other in the vertical direction with the bottom surface 631 therebetween.

[0075] A case will be described below in which light emitted from the first light source unit 521 and the second light source unit 522 as light sources is emitted from the first emission surface 33 to the recessed portion 63. Here, of the light emitted from the first emission surface 33 to the recessed portion 63, light that travels through optical paths C30 and C40 emitted from the upper end and the lower end of the first emission surface 33, respectively, as shown in Fig. 14 will be described.

[0076] The light passing through the optical path C30 is emitted from the upper end of the first exit surface 33 in a direction inclined upward with respect to the front-rear direction. The light emitted from the first exit surface 33 is reflected at the upper surface 632 and guided to the bottom surface 631 of the light-transmitting cover 60. The light guided to the bottom surface 631 proceeds inside the protruding portion 61 and is emitted to the outside from the upper end of the light diffusion portion 611. The light passing through the optical path C40 is emitted from the lower end of the first exit surface 33 in a direction inclined downward with respect to the front-rear direction. The light emitted from the first exit surface 33 is reflected at the lower surface 633 and guided to the bottom surface 631 of the light-transmitting cover 60. The light guided to the bottom surface 631 proceeds inside the protruding portion 61 and is emitted to the outside from the lower end of the light diffusion portion 611. Here, as shown in FIG. 15, when the recessed portion 63 is not formed in the light-transmitting cover 60, the light passing through the optical path C50 and the optical path C60 among the light emitted from the first emission surface 33 to the opposing surface 64 will be described. First, the light passing through the optical path C50 is emitted from the first emission surface 33 in a direction inclined upward with respect to the front-rear direction, similar to the optical path C30. The light emitted from the first emission surface 33 enters the light-transmitting cover 60 from the opposing surface 64 and is guided to the light-shielding portion 65. Similarly to the optical path C40, the light passing through the optical path C60 is emitted from the first emission surface 33 in a direction inclined downward with respect to the front-rear direction. The light emitted from the first emission surface 33 enters the light-transmitting cover 60 from the opposing surface 64 and is guided to the light-shielding portion 65. In this way, the light passing through the optical path C50 and the optical path C60 is blocked by the light-shielding portion 65 and is not emitted to the outside. Therefore, by forming a recess 63 in the translucent cover 60, light emitted from the upward end of the first exit surface 33 can be efficiently guided to the upper end of the light diffusion section 611, and light emitted from the downward end of the first exit surface 33 can be efficiently guided to the lower end of the light diffusion section 611.

[0077] (2.2) Operation Description The operation of the wiring device 1 of the present embodiment will be described below.

[0078] The wiring device 1 of the present embodiment is used to operate a device 3.

[0079] The light-emitting unit 21 of the proximity sensor 10 included in the wiring fixture 1 emits light constantly or periodically, and the emitted light from the light-emitting unit 21 is irradiated into the space A1 via the light-guiding member 30 and the light-transmitting cover 60.

[0080] In a power supply stop state in which power supply to the device 3, which is a lighting fixture, is stopped, when a user brings his / her hand close to the protrusion 61 of the light-transmitting cover 60 exposed from the window hole 92 of the front panel 90, reflected light reflected by the user's hand enters the light receiving unit 22 through the light-transmitting cover 60 and the light-guiding member 30. When the signal level of the voltage signal output from the light receiving unit 22 exceeds a threshold, the detection circuit 23 outputs a detection signal indicating the presence of the detection target B1 to the control unit 50. At this time, the control unit 50 turns on the switch 51 based on the detection signal input from the detection circuit 23, switches to a power supply state in which power is supplied to the device 3, and lights up the device 3, which is a lighting fixture. When the control unit 50 switches from the power supply stop state to the power supply state, it turns off the first light source unit 521 and the second light source unit 522 provided in the display unit 52.

[0081] In addition, in a power supply state in which power is supplied to the device 3, which is a lighting fixture, when a user brings his / her hand close to the protrusion 61 of the light-transmitting cover 60, the reflected light reflected by the user's hand enters the light receiving unit 22 through the light-transmitting cover 60 and the light-guiding member 30. When the signal level of the voltage signal output from the light receiving unit 22 exceeds a threshold value, the detection circuit 23 outputs a detection signal indicating the presence of the detection target B1 to the control unit 50. At this time, the control unit 50 turns off the switch 51 based on the detection signal input from the detection circuit 23, switches to a power supply stop state in which power supply to the device 3 is cut off, and turns off the device 3, which is a lighting fixture. When the control unit 50 switches from the power supply state to the power supply stop state, it turns on the first light source unit 521 and the second light source unit 522 provided in the display unit 52.

[0082] In this embodiment, a light diffusion section 611 is provided on the protrusion 61 of the light-transmitting cover 60, thereby increasing the spread angle of the light emitted from the light-transmitting cover 60 to the space A1, thereby expanding the range in which the specimen subject B1 can be detected, thereby improving usability.

[0083] Furthermore, since the light collecting portion 321 is provided on the second emission surface 32 of the light guide member 30, the power of the light incident on the light receiving portion 22 can be increased, and there is an advantage that the detection sensitivity of the detection portion 20 is improved.

[0084] (3) Variations The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0085] Modifications of the above embodiment are listed below. The modifications described below can be applied in appropriate combinations.

[0086] (3.1) Variation 1 In the above embodiment, the first entrance surface 35 and the second entrance surface 36 are parallel to the first exit surface 33, but variant 1 differs from the above embodiment in that the first entrance surface 35 and the second entrance surface 36 are inclined with respect to the first exit surface 33.

[0087] For example, as shown in FIG. 16, the first entrance surface 35 (352) is inclined so as to approach the first exit surface 33 as it advances upward. As a result, light incident from the first light source unit 521 to the first entrance surface 35 (352) inclined with respect to the first exit surface 33 is refracted downward more than when the light incident on the first entrance surface 35 (351) parallel to the first exit surface 33. In addition, the second entrance surface 36 (362) is inclined so as to approach the first exit surface 33 as it advances downward. As a result, light incident from the second light source unit 522 to the second entrance surface 36 (362) inclined with respect to the first exit surface 33 is refracted upward more than when the light incident on the second entrance surface 36 (361) parallel to the first exit surface 33. For example, when light emitted vertically from the first light source unit 521 is incident on a first entrance surface 351 (shown by an imaginary line in FIG. 16) that is parallel to the first exit surface 33, it is not refracted but is guided to the first exit surface 33 through optical path C70. On the other hand, when light emitted vertically from the first light source unit 521 is incident on a first entrance surface 352 that is inclined with respect to the first exit surface 33, it is refracted downward at the first entrance surface 352 and is guided to the first exit surface 33 through optical path C71. When light emitted vertically from the second light source unit 522 is incident on a second entrance surface 361 (shown by an imaginary line in FIG. 16) that is parallel to the first exit surface 33, it is not refracted but is guided to the first exit surface 33 through optical path C80. On the other hand, when light emitted perpendicularly from the second light source unit 522 enters the second entrance surface 362 inclined with respect to the first exit surface 33, the light is refracted upward at the second entrance surface 362 and guided to the first exit surface 33 through the optical path C81. This makes it possible to further improve the extraction efficiency of the light emitted from the first light source unit 521 and the second light source unit 522 from the center of the first exit surface 33.

[0088] (3.2) Variation 2 The second modification is different from the above embodiment and the first modification in that a lens having a positive power is provided on the third incident surface 31. FIGS. 17 and 18 show a light guide member 30 in which a lens 311 having a positive power is provided on the third incident surface 31. The lens 311 is, for example, a convex lens formed to have a convex curved surface protruding toward the light emitter 21. That is, the lens 311 has a convex curved surface protruding toward the light emitter 21. C5 in FIG. 18 shows the optical path of the light emitted from the light emitter 21, and C6 in FIG. 18 shows the optical path of the light incident on the light receiving unit 22. Since the lens 311 has a positive power, the spread of the light emitted from the light emitter 21 and incident on the inside of the light guide member 30 from the third incident surface 31 can be narrowed to be closer to parallel light, and the light that hits the side wall of the light guide member 30 and enters the light receiving unit 22 can be reduced. This can suppress the occurrence of crosstalk.

[0089] Here, the optical axis AX1 of the light-emitting unit 21 is shifted from the position P1 where the curvature is minimum on the convex curved surface of the lens 311. The optical axis AX1 of the light-emitting unit 21 is, for example, the rotational symmetry axis of the light flux emitted from the light-emitting unit 21. In this modification, the lens 311 and the light-emitting unit 21 are arranged so that the optical axis AX1 faces a position closer to the second emission surface 32 than the position P1 where the curvature is minimum. As a result, the light from the light-emitting unit 21 is irradiated toward a portion of the convex curved surface of the lens 311 that has a larger curvature than the position P1, and is refracted by the convex curved surface so that most of the light emitted from the light-emitting unit 21 is guided to be parallel to the forward direction. Therefore, it is possible to reduce the light that is reflected by the inner surface of the light-guiding member 30 and becomes noise light out of the light emitted from the light-emitting unit 21, and the occurrence of crosstalk can be suppressed. In the example shown in Figure 18, the lens 311 and the light-emitting unit 21 are arranged so that the optical axis AX1 faces a position closer to the second exit surface 32 than the position P1, but the lens 311 and the light-emitting unit 21 may also be arranged so that the optical axis AX1 faces a position farther from the second exit surface 32 than the position P1.

[0090] The shape of the lens 311 is not limited to that shown in FIGS. 17 and 18, and may be modified as appropriate.

[0091] (3.3) Other Modifications The wiring device 1 in the present disclosure includes a computer system in the control unit 50 and the like. The computer system is mainly composed of a processor and a memory as hardware. The function of the control unit 50 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as the processor. The electronic circuits may be integrated in one chip or distributed among multiple chips. The chips may be integrated in one device or distributed among multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Thus, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0092] (summary) As described above, the wiring device (1) according to the first aspect includes a first light source unit (521) and a second light source unit (522) that each emit light, and a light guide member (30). The light guide member (30) has a first incident surface (35) into which light emitted from the first light source unit (521) is incident, a second incident surface (36) into which light emitted from the second light source unit (522) is incident, and an exit surface (33) provided on the opposite side to the first incident surface (35) and the second incident surface (36). The light guide member (30) guides the light emitted from the first light source unit (521) from the first incident surface (35) to the exit surface (33) and emits the light to the outside from the exit surface (33). The light-guiding member (30) guides the light emitted from the second light source section (522) from the second incident surface (36) to the exit surface (33) and emits the light to the outside from the exit surface (33). The first incident surface (35) and the second incident surface (36) are provided at both ends of the light-guiding member (30) in one direction (DR2) along the exit surface (33). The first light source section (521) and the second light source section (522) are disposed at positions facing the first incident surface (35) and the second incident surface (36), respectively.

[0093] According to this aspect, the light emitted from the first light source unit (521) and the second light source unit (522) are overlapped at the exit surface (33), thereby improving the uniformity of the light emission intensity at the exit surface (33) compared to the case where the light emitted from a single light source unit is guided from a single entrance surface.

[0094] In the wiring device (1) according to the second aspect, the light exit surface (33) is rectangular in shape in the first aspect.

[0095] According to this embodiment, the area of ​​the emission surface (33) required for ensuring visibility can be efficiently ensured on the surface of the light-guiding member (30).

[0096] In the wiring device (1) according to the third aspect, in the first or second aspect, the light guide member (30) guides at least a portion of the light emitted from the first light source unit (521) to an exit position on the exit surface (33) that is closer to the second light source unit (522) than the entrance position on the first entrance surface (35) when viewed from the front of the exit surface (33). The light guide member (30) also guides at least a portion of the light emitted from the second light source unit (522) to an exit position on the exit surface (33) that is closer to the first light source unit (521) than the entrance position on the second entrance surface (36) when viewed from the front of the exit surface (33).

[0097] According to this embodiment, it is possible to improve the efficiency with which the light emitted from the first light source unit (521) and the second light source unit (522) can be extracted from the center of the light exit surface (33).

[0098] In the wiring device (1) according to the fourth aspect, in any one of the first to third aspects, at least one of the first incident surface (35) and the second incident surface (36) is inclined with respect to the exit surface (33).

[0099] According to this embodiment, it is possible to further improve the efficiency with which the light emitted from the first light source unit (521) and the second light source unit (522) can be extracted from the center of the light exit surface (33).

[0100] The wiring device (1) according to the fifth aspect is any one of the first to fourth aspects, and further includes a detection unit (20) having a light-emitting unit (21) that emits light and a light-receiving unit (22) that outputs an electric signal according to the incident light. The light guide member (30) has a third incident surface (31) facing the light-emitting unit (21) and a second exit surface (32) facing the light-receiving unit (22). The light guide member (30) guides the light emitted from the light-emitting unit (21) from the third incident surface (31) to a first exit surface (33) that is an exit surface (33), and emits the light to the outside from the first exit surface (33). The light guide member (30) guides the light incident from the first exit surface (33) from the first exit surface (33) to the second exit surface (32), and emits the light to the light-receiving unit (22). The detection section (20) is disposed between the first light source section (521) and the second light source section (522).

[0101] According to this embodiment, it is possible to reduce the space required for arranging the detection unit (20), the first light source unit (521), and the second light source unit (522).

[0102] In the wiring device (1) of the sixth aspect, in the fifth aspect, a first arrangement direction (DR1) in which the light-emitting unit (21) and the light-receiving unit (22) are arranged intersects with a second arrangement direction (DR2) in which the first light source unit (521) and the second light source unit (522) are arranged.

[0103] According to this embodiment, it is possible to reduce the space required for arranging the light-emitting section (21), the light-receiving section (22), the first light source section (521), and the second light source section (522).

[0104] In the wiring device (1) according to the seventh aspect, in any of the first to sixth aspects, at least one of the first incident surface (35) and the second incident surface (36) has an uneven structure that diffuses incident light.

[0105] According to this embodiment, the light incident on at least one of the first entrance surface (35) and the second entrance surface (36) is diffused and guided to the exit surface (33), thereby improving the uniformity of the luminous intensity at the exit surface (33).

[0106] The wiring device (1) according to an eighth aspect is any one of the first to seventh aspects, and further includes a light-transmitting cover (60) disposed opposite the emission surface (33). The light-transmitting cover (60) is provided with a light diffusion section (611) that diffuses light passing through the light-transmitting cover (60), and a recessed section (63) is formed on a surface (64) of the light-transmitting cover (60) that faces the emission surface (33).

[0107] According to this embodiment, the light emitted from the first emission surface (33) can be efficiently guided to the diffusion portion (611).

[0108] The wiring device (1) according to the ninth aspect is the eighth aspect, wherein the light exit surface (33) and the recessed portion (63) are arranged to at least partially overlap each other when viewed from the front of the light-transmitting cover (60).

[0109] According to this embodiment, the light emitted from the first emission surface (33) can be efficiently guided to the diffusion portion (611).

[0110] The second to ninth aspects are not essential configurations of the wiring device (1) and may be omitted as appropriate. [Explanation of symbols]

[0111] 1 Wiring device 20 Detection unit 21 Light emitting part 22 Light receiving part 30 Light guide member 31 Third entrance plane 32 Second exit surface 33 Exit surface, first exit surface 35 1st entrance plane 36 Second entrance plane 60 Translucent cover 62 Opposite Surface 63 Recess 521 1st light source section 522 2nd light source section 611 Light diffusion section DR1 1st array direction DR2 One direction, second array direction

Claims

1. a first light source unit and a second light source unit each emitting light; A light guiding member, The light guiding member is a first incident surface onto which the light emitted from the first light source unit is incident; a second incident surface onto which the light emitted from the second light source unit is incident; an exit surface provided on the opposite side to the first entrance surface and the second entrance surface, The light guiding member is The light emitted from the first light source unit is guided from the first incident surface to the exit surface and is emitted to the outside from the exit surface. The light emitted from the second light source unit is guided from the second entrance surface to the exit surface and emitted to the outside from the exit surface. the first entrance surface and the second entrance surface are provided at both ends of the light guiding member in one direction along the exit surface, the first light source unit and the second light source unit are disposed at positions facing the first light incidence surface and the second light incidence surface, respectively; The light emitted from the first light source unit and the light emitted from the second light source unit are superimposed on the emission surface. Wiring equipment.

2. The exit surface is rectangular. The wiring device according to claim 1 .

3. The light guiding member is guide at least a portion of the light emitted from the first light source unit to an exit position on the exit surface closer to the second light source unit than an entrance position on the first entrance surface when viewed from in front of the exit surface; At least a part of the light emitted from the second light source unit is guided to an emission position on the emission surface closer to the first light source unit than an incidence position on the second entrance surface when viewed from the front of the emission surface. The wiring device according to claim 1 or 2.

4. At least one of the first entrance surface and the second entrance surface is inclined with respect to the exit surface. The wiring device according to claim 1 or 2.

5. The detector further includes a light-emitting unit that emits light and a light-receiving unit that outputs an electrical signal in response to the incident light. The light guiding member is A third incident surface facing the light emitting portion; a second exit surface facing the light receiving portion; The light guiding member is The light emitted from the light emitting unit is guided from the third entrance surface to a first exit surface which is the exit surface, and is emitted to the outside from the first exit surface; The light incident on the first exit surface is guided from the first exit surface to the second exit surface, and is output to the light receiving unit. The detection unit is disposed between the first light source unit and the second light source unit. The wiring device according to claim 1 or 2.

6. A first arrangement direction in which the light-emitting units and the light-receiving units are arranged intersects with a second arrangement direction in which the first light source units and the second light source units are arranged. The wiring device according to claim 5.

7. At least one of the first and second incident surfaces has an uneven structure that diffuses incident light. The wiring device according to claim 1 or 2.

8. Further comprising a light-transmitting cover disposed opposite the light exit surface and having light transmittance; The light-transmitting cover has: A light diffusion section is provided to diffuse light passing through the light-transmitting cover, A recess is formed on the surface of the light-transmitting cover that faces the light exit surface. The wiring device according to claim 1 or 2.

9. The light exit surface and the recessed portion are disposed so as to at least partially overlap each other when viewed from the front side of the light-transmitting cover. The wiring device according to claim 8.

10. A first light source unit and a second light source unit each emitting light; A light guiding member, The light guiding member is a first incident surface onto which the light emitted from the first light source unit is incident; a second incident surface onto which the light emitted from the second light source unit is incident; an exit surface provided on the opposite side to the first entrance surface and the second entrance surface, The light guiding member is The light emitted from the first light source unit is guided from the first incident surface to the exit surface and is emitted to the outside from the exit surface. The light emitted from the second light source unit is guided from the second entrance surface to the exit surface and emitted to the outside from the exit surface. the first entrance surface and the second entrance surface are provided at both ends of the light guiding member in one direction along the exit surface, the first light source unit and the second light source unit are disposed at positions facing the first light incidence surface and the second light incidence surface, respectively; The detector further includes a light-emitting unit that emits light and a light-receiving unit that outputs an electrical signal in response to the incident light. The light guiding member is A third incident surface facing the light emitting portion; a second exit surface facing the light receiving portion; The light guiding member is The light emitted from the light emitting unit is guided from the third entrance surface to a first exit surface which is the exit surface, and is emitted to the outside from the first exit surface; The light incident on the first exit surface is guided from the first exit surface to the second exit surface, and is output to the light receiving unit. The detection unit is disposed between the first light source unit and the second light source unit. Wiring equipment.

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