JP7367979B2 - Three-dimensional motion display device, lighting device, and information transmission method - Google Patents

Description

The present invention relates to a three-dimensional motion display device including a plurality of linear actuators, a lighting device using the device, and an information transmission method.

Japanese Unexamined Patent Publication No. 2011-187050 (Patent Document 1) discloses a conventional three-dimensional motion display device that can express soft movements and biological movements. This conventional three-dimensional motion display device has a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end, and the elongated main body can change the orientation of the elongated main body as desired in response to an orientation change command. It has a structure in which a plurality of linear actuators each having an attitude changing mechanism that changes in three axial directions are fixed to a base. The attitude changing mechanism is configured to change the attitude of the elongated main body by a mechanical structure using a shape memory alloy or the like.

Furthermore, in the three-dimensional motion display device shown in "A. Luminescent Tentacles" (In SIGGRAPH ASIA 2016 Art Gallery, ACM) [Non-patent Document 1] published by Tsugumi Nakayasu, the inventor of this application, Light emitting diodes (light emitting means) are arranged at the tips of the plurality of elongated bodies, and the postures of the plurality of elongated bodies are changed while the light emitting diodes at the tips of the plurality of elongated bodies emit light.

Japanese Patent Application Publication No. 2011-187050

"A. Luminescent Tentacles" (In SIGGRAPH ASIA 2016 Art Gallery, ACM)

Patent Document 1 discloses that a plurality of elongated bodies are arranged on a planar substrate (base) at intervals and the postures of these elongated bodies are changed. has disclosed a three-dimensional motion display device that expresses a specific shape. However, conventional three-dimensional motion display devices have a problem in that it is difficult to increase their versatility.

Furthermore, in the three-dimensional motion display device shown in Non-Patent Document 1, a plurality of elongated bodies are arranged on a flat substrate (base) at intervals, and the postures of the plurality of elongated bodies are By changing the lighting conditions and causing the light emitting means to emit light, a gorgeous performance can be achieved. However, even in this case, there is a problem in that it is difficult to increase versatility.

SUMMARY OF THE INVENTION An object of the present invention is to provide a three-dimensional motion display device that can be more versatile than before, a lighting device using the device, and an information transmission method using the device.

The three-dimensional motion display device of the present invention has a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end, and a posture of the elongated main body that can be arbitrarily changed according to a posture change command. A plurality of linear actuators are assembled together, each having a posture changing mechanism for changing the direction of the plurality of elongated bodies, and a plurality of light emitting means provided at the other end of the plurality of elongated bodies and lighting in response to a light emission command. One or more linear actuator aggregates are mounted on a mounting board provided with a drive circuit for individually driving a plurality of linear actuators and a plurality of light emitting means, thereby forming a unit. According to the present invention, the linear actuator assembly group composed of a plurality of linear actuators and the drive circuit for individually driving the plurality of light emitting means are mounted on a mounting board to form a unit. As such, there is no need to install each linear actuator on the base. Furthermore, when one mounting board is electrically connected to a power source via an electrical connector, it becomes possible to collectively supply power to the attitude changing mechanisms and light emitting means of a plurality of elongated bodies. As a result, the present invention has higher versatility than conventional three-dimensional motion display devices, and can be used not only as a simple object, but also as a light source for lighting equipment, It can also be used as an information providing element that provides information through a combination of the posture of the main body and the light emitted from the plurality of light emitting means.

For example, the electrical connector may be configured to attach to a socket outlet into which a light bulb is attached. When such an electrical connector is used, it becomes possible to supply power to the posture changing mechanisms and light emitting means of a plurality of elongated bodies simply by attaching it to a commercially available socket outlet like a light bulb. Note that the attitude change command and the light emission command may be supplied using a power distribution line to which a socket outlet is connected, or may be supplied wirelessly.

A configuration may be adopted in which the linear actuator assembly group and the mounting board are housed inside a cover member that is transparent to light and is attached to the electrical connector. The cover member may be formed of a transparent material that allows the plurality of elongated bodies to be visually seen from the outside. Furthermore, the cover member may have the same shape as the glass bulb of the light bulb. If the three-dimensional motion display device is shaped like this, it can be directly attached to an existing socket outlet and used as unique lighting, and it can also be used as an information transmitting element that can visually recognize information. You can also.

The posture change mechanism includes a plurality of shape memory alloy linear bodies that are inside the elongate body and extend in the longitudinal direction of the elongate body, and a shape memory alloy wire body that is included in a drive circuit and that changes shape according to a posture change command. The structure may include a current supply circuit that individually supplies desired driving current to the alloy linear bodies. Further, the drive circuit includes a light emitting drive circuit that individually supplies a light emitting current to each of the plurality of light emitting means to cause each of the plurality of light emitting means to emit light in response to a light emission command. These current supply circuit and light emitting drive circuit are mounted on a mounting board. The mounting board also houses a receiving circuit that receives an attitude change command and a light emission command transmitted via an indoor power distribution line or wirelessly. With such a structure, the appearance can be made simple.

The shape memory alloy linear body placed inside the elongated main body deforms with a time delay after the driving current is applied, and also with a time delay after the driving current is stopped. Return to initial shape. This time delay is greatly influenced by temperature. If the light emitting means is caused to emit light in accordance with the movement of the linear actuator without considering this time delay and temperature, it appears to the viewer that the light emitting means is emitting light asynchronously with the movement of the linear actuator. As a result, even if the user attempts to use the three-dimensional motion display device to express or operate the user, the movement and light emission of the linear actuator may make the viewer feel uncomfortable. When the light emitting drive circuit has a delay adjustment function as in the present invention, the light emitting current is adjusted in response to at least one of the rise and fall of the drive current, taking into account the time delay with temperature characteristics. At least one of the rise and fall can be adjusted. As a result, it is possible to give a natural impression to the viewer who views the movement and light emission of the three-dimensional motion display device at the same time.

The time delay between the operation and the light emission, especially if the light emission is stopped at the same time as the driving current is stopped, gives the viewer a strange feeling that the elongated body is still moving even after the light emission has stopped. This discomfort can be dealt with by each of the plurality of light emitting drive circuits having a delay adjustment function and causing the corresponding light emitting current to fall with a predetermined time delay after the fall of the driving current. Preferably, this predetermined time is the time from when the current supply circuit stops supplying the desired current to the corresponding shape memory alloy linear body until the shape memory alloy linear body stops deforming. Note that in reality, it goes without saying that there may be some time error.

Furthermore, there is a time delay between the operation and the light emission, and if the light emission starts at the same time as the driving current starts, the viewer may feel that the elongated body starts moving even after the light emission starts. Considering this discomfort, the light emitting drive circuit uses the delay adjustment function to start up the corresponding light emitting current with a first time delay after the rise of the drive current, and with a delay of the second time after the fall of the drive current. It is preferable that the corresponding light emitting current is turned down with a time delay. In this way, it is possible to cope with the time delay, including the sense of discomfort at the time of starting the application of the drive current. In this case, the first time is defined as the time from when the current supply circuit starts individually supplying the desired current to the corresponding shape memory alloy linear body until the shape memory alloy linear body starts deforming. It is preferable that Further, the second time is defined as the time period from when the current supply circuit stops supplying the desired current to the corresponding shape memory alloy wire body until the shape memory alloy wire body stops deforming. is preferred.

It is preferable that the driving current gradually increases at the rising edge, gradually decreases at the falling edge, and has a portion where the current value becomes constant between the rising edge and the falling edge.

The mounting board includes, for example, a fixed circuit board to which one end of a plurality of linear actuators included in one linear actuator assembly group is fixed, and a plurality of fixed circuit boards on which individual drive circuits provided corresponding to the plurality of linear actuators are mounted. The present invention may have a structure including a board laminated knit in which a plurality of individual circuit boards are laminated under a fixed circuit board. With this structure, the drive circuit can be constructed by preparing and stacking individual circuit boards corresponding to the number of linear actuators, thereby increasing versatility.

A plurality of individual circuit boards may be stacked in a direction perpendicular to the board surface of the fixed circuit board to form a board stack unit.

Further, a plurality of individual circuit boards may be stacked so that each board surface extends in a direction perpendicular to the board surface of the fixed circuit board to form a board stacking unit. In particular, when the board stack unit is configured in this way, the soldering work between the individual circuit boards and the fixed circuit board becomes easy, and the cost can be reduced.

Further, the mounting board is provided to correspond to one fixed circuit board to which one end of the plurality of linear actuators included in the plurality of linear actuator assembly groups is fixed, and to each of the plurality of linear actuators included in one linear actuator assembly group. It may include a plurality of laminated circuit boards in which a plurality of individual circuit boards on which individual drive circuits are mounted are laminated, and the plurality of laminated circuit boards may be fixed under a fixed circuit board. Even with this structure, the drive circuit can be constructed from multiple laminated circuit boards by preparing individual drive circuits according to the number of linear actuators and stacking them. By preparing and stacking individual drive circuits, versatility can be increased even when the number of linear actuators increases.

In the information transmission method of transmitting information using the three-dimensional motion display device of the present invention, information is transmitted by a combination of the postures of the plural elongated bodies and the light emission patterns of the plurality of light emitting means.

FIG. 1 is a schematic perspective view of an example in which the three-dimensional motion display device of the present invention is applied to a flower object. FIG. 2 is an enlarged front view of main parts of the three-dimensional motion display device. (A) to (C) are diagrams each used to explain the structure of a long body of a linear actuator. (A) and (B) are diagrams used to explain the operating principle of a linear actuator. FIG. 2 is a block diagram showing a specific configuration of a circuit of a plurality of linear actuators. (A) is a diagram showing the movement of the linear actuator, (B) is a waveform diagram showing the time change in the current value commanded by the attitude change command, and (C) is a diagram showing the time change in the current value commanded by the light emission command. FIG. (A) to (C) are diagrams showing a three-dimensional motion display device according to another embodiment of the present invention. (A) is a perspective view of another embodiment of the three-dimensional motion display device of the present invention, (B) is a diagram showing a mode in which linear actuators are fixed to a fixed circuit board, and (C) is a diagram showing how linear actuators are fixed to a fixed circuit board. FIG. 3 is a perspective view of a circuit board. (A) is a perspective view of still another embodiment of the three-dimensional motion display device of the present invention, and (B) is a diagram showing a mode in which a linear actuator is fixed to a fixed circuit board. It is an exploded perspective view for explaining a different example of a substrate lamination unit.

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic perspective view of an example in which a three-dimensional motion display device 1 of the present invention is applied to a flower object. In this example, an electrical connector 2 is placed in a part corresponding to the calyx of a flower, and a linear actuator assembly group is formed by a plurality of linear actuators 3 gathered in parts corresponding to the stamens and pistils of the flower object. 4 is arranged. FIG. 2 is an enlarged front view of the main parts of the three-dimensional motion display device 1, and FIGS. 3(A) to 3(C) are diagrams used to explain the structure of the elongated main body of the linear actuator, respectively. be.

As shown in FIG. 3, the linear actuator 3 includes a circuit board 5 as a mounting board, and an elongated main body 7 arranged on the upper surface of the circuit board 5, with a fixed end at the lower end and a free end at the upper end. ing. As shown in FIGS. 3A, 3B, and 3C and 4A and 4B, the elongated main body 7 has a length of 90 mm and a diameter of 5 mm, and its lower end is fixed to the circuit board 5. is provided to protrude from the upper surface of the circuit board 5. Eight enameled wires 14 extend from the lower end surface of the elongated main body 7. Six of the eight enamel wires 14 are connected to a current supply circuit 9, which will be described later, and two are connected to a light emitting drive circuit 13, which will be described later, so that a driving current and a light emitting current are passed. A light-transmitting diffused light cap 15 is attached to the upper end of the elongated main body 7 so as to cover the upper end surface of the elongated main body 7 . At the upper end of the elongated main body 7 located inside the diffused light cap 15, a light emitting means 12 whose light source is an LED 12A is provided.

The elongated main body 7 has a linear spring member 10 (FIG. 5) made of a superelastic shape memory alloy as a self-supporting elongated core material arranged inside the non-self-supporting silicon tube exterior part. I try to support independence. A central through hole 16 provided in the elongated main body 7 is formed at the center of the elongated main body 7. A linear spring member 10 whose lower end is fixed to the circuit board 5 is inserted into the central through hole 16, thereby making the elongated main body 7 self-supporting. Further, a light emitting means 12 having an LED 12A mounted on a substrate is arranged above the central through hole 16, and an enameled wire 14 for passing a light emitting current to the LED 12A passes through the central through hole 16.

Three pairs of peripheral through holes 17, 18, and 19 are provided at positions radially shifted from the center of the elongated main body 7 so as to surround the central through hole 16 and spaced apart in the circumferential direction. . Grommets 20 are attached to the opening periphery of the upper end surface of the elongated main body 7 of each of the peripheral through holes 17, 18, and 19 to prevent damage to the silicon tube. Shape memory alloy linear bodies 21A, 21B and 21C are inserted into each set of peripheral through holes 17, 18 and 19, respectively. The tip of the shape memory alloy linear body 21A is passed through one of the pair of peripheral through holes 17 from the lower end side of the peripheral through hole 17 to the upper end side, and the tip of the shape memory alloy linear body 21A protrudes from the upper end side. is passed from the upper end of the other peripheral through-hole 17 to the lower end side, and the tip and rear ends are fixed near the lower end of the elongated main body 7. Fixed against the bottom edge. Enameled wires 14 are connected to the tip and rear ends of the shape memory alloy linear body 21A.

As shown in FIG. 3(C), such an elongated main body 7 can be moved in any direction by passing an electric current through the shape memory alloy linear bodies 21A, 21B and/or 21C. Can be bent. For example, in FIG. 3(C), when bending the elongated main body 7 in the downward direction D1 indicated by the arrow, if only the shape memory alloy linear body 21A is energized, the shape memory alloy linear body 21A will undergo tension contraction. The upper end surface of the elongated main body 7 is pulled toward the lower end, and the elongated main body 7 is bent in the downward direction D1 in FIG. 4(C). In order to bend in the opposite direction D2, when the same current is applied to the shape memory alloy linear bodies 21B and 21C, the elongated main body 7 moves toward the exact middle between the shape memory alloy linear bodies 21B and 21C (FIG. 3(C) ) in the upward direction D2. By appropriately setting the amount and timing of the current flowing through each shape memory alloy linear body 21A, 21B, and 21C, the elongated main body 7 can not only bend in one direction, but also rotate, vibrate, and perform combinations thereof. It is clear that complex movements such as

FIG. 5 is a block diagram showing a specific configuration of a control circuit for the plurality of linear actuators 3 mounted on the circuit board 5 and provided in the three-dimensional motion display device 1. In this control circuit, the plurality of linear actuators 3 have an elongated main body 7 and an attitude change mechanism 6 that changes the attitude of the linear elongated main body 7 in an arbitrary direction in response to an attitude change command. A command generation device 22 is configured in a personal computer PC provided outside the three-dimensional motion display device 1. The command generation device 22 generates individual attitude change commands S1 and light emission commands S2 for each linear actuator 3.

As described above, the attitude changing mechanism 6 shown in FIG. A plurality of wiring circuits 11 are mounted on the circuit board 5 and individually flow driving currents to the plurality of shape memory alloy linear bodies 21. A plurality of current supply circuits 9 are provided that individually supply desired driving currents to the alloy linear body 21. In this embodiment, an individual drive circuit 8 is configured by a current supply circuit 9 and a wiring circuit 11.

Further, the command generation device 22 individually gives a plurality of posture change commands and light emission commands corresponding to the other plurality of linear actuators 3 as well. A light emitting means 12 including an LED 12A is provided at the tip of each of the plurality of elongated main bodies 7, and a light emitting drive circuit 13 mounted on the circuit board 5 responds to a light emitting command from a command generating device 22. , supplies a light-emitting current to the plurality of light-emitting means 12 to cause each of the plurality of light-emitting means 12 to emit light. Current is supplied to the current supply circuit 9 and the light emitting drive circuit 13 from a constant current circuit CC (not shown).

FIG. 6(A) shows the movement of the elongated main body 7 of the linear actuator 3 included in an embodiment of the three-dimensional motion display device of the present invention, and FIG. 6(B) shows the movement of the elongated main body 7 2 is a diagram showing a waveform showing a time change in a current value commanded by a posture change command S1 for supplying a driving current to be applied individually to the shape memory alloy linear body 21 from a current supply circuit 9 in order to control the posture of the shape memory alloy linear body 21. 6(C) is a diagram showing a change over time in the current value commanded by the light emission command S2 for causing the light emission current supplied to the LED 12A provided at the tip of the elongated main body 7 to flow. As shown in FIG. 5, due to the operating principle of deforming the elongated main body 7, the deformation of the elongated main body 7 starts with a time delay after the application of the driving current indicated by the attitude change command S1, and After the driving current stops flowing, it returns to its initial shape with a time delay.

Referring to FIGS. 4A and 4B for explaining the operating principle of the linear actuator 3, the elongated main body 7 has a cylindrical silicon tube 71 as an exterior part, and the center of the silicon tube 71. A linear spring member 10 made of a superelastic shape memory alloy is embedded along the axis, and a linear spring member 10 that extends near the periphery of the elongated main body 7 in parallel to the central axis, and its upper and lower ends are at the upper and lower ends of the elongated main body 7. The shape memory alloy linear body 21 is fixed. In this state, the silicon tube 71 constituting the elongated main body 7 has flexibility but is not self-supporting, and the linear spring member 10 made of a superelastic shape memory alloy has flexibility and self-supporting property. In addition, as long as no stress is applied to the elongated main body 7, it can maintain a straight posture as shown in FIG. 4(A). The shape memory alloy linear body 21 is tensile-shrinked in the length direction by heating to, for example, 70°C. Heating can be performed by applying electricity to the shape memory alloy linear body 21. Since the contracted shape memory alloy linear body 21 pulls the upper surface of the elongated main body 7, the elongated main body 7 deforms into a posture bent to the right as shown in FIG. 4(B). When the power supply to the shape memory alloy linear body 21 is stopped, the shape memory alloy linear body 21 naturally cools and relaxes and expands, and due to the self-sustainability of the linear spring member 10, the elongated main body 7 becomes as shown in FIG. ) to return to a straight posture.

The movement of the linear actuator 3 based on such an operating principle inevitably involves a time delay from the start of energization until it is heated and tensely contracts, and from the time when energization is stopped until it naturally cools and relaxes and expands. On the other hand, there is no such delay in the light emission of the LED 12A, and the LED 12A emits light at the same time when the current for driving light emission is applied to the LED 12A, and turns off at the same time when the current is stopped. The three-dimensional motion display device 1 of this embodiment is intended to eliminate the sense of discomfort given to the viewer due to the time lag between the two movements.

In the three-dimensional motion display device of this embodiment, the plurality of light emitting drive circuits 13 have a delay adjustment function that adjustably delays the rise and fall of the light emitting current with respect to the rise and fall of the drive current. have.

Moreover, the time delay between the operation and the light emission, especially if the light emission is stopped at the same time as the driving current is stopped, gives the viewer an unnatural feeling that the elongated main body 7 is still moving even after the light emission has stopped. . In this embodiment, each of the plurality of light emitting drive circuits 13 uses a delay adjustment function to deal with this discomfort by causing the corresponding light emitting current to fall with a predetermined time delay after the fall of the driving current. I can do it. This predetermined time period is such that the shape memory alloy linear body 21A, 21B or 21C deforms after the current supply circuit 9 stops supplying the desired current to the corresponding shape memory alloy linear body 21A, 21B or 21C. This is the time until it stops.

Further, the time delay between the operation and the light emission may give the viewer a sense of discomfort as the elongated main body 7 begins to move after the light emission starts if the light emission starts at the same time as the driving current starts being applied. Taking this discomfort into consideration, in this embodiment, each of the plurality of light emitting drive circuits 13 uses a delay adjustment function to start up the corresponding light emitting current with a delay of the first time t1 from the rise of the driving current. , the corresponding light emitting current (S2) is caused to fall a second time t2 later than the fall of the driving current. In this way, it is possible to cope with the time delay, including the sense of discomfort at the time of starting the application of the driving current. In this embodiment, the shape memory alloy linear bodies stop deforming after the current supply circuit stops supplying the desired current to the corresponding shape memory alloy linear bodies for the first time t1. The shape memory alloy linear bodies 21 are deformed after the current supply circuit 9 starts individually supplying desired currents to the corresponding shape memory alloy linear bodies 21. This is the time it takes to start.

Comparing the movement of the elongated main body 7 shown in FIG. 6 with the waveform (S1) that commands the driving current, it is found that the elongated main body 7 starts moving not at the same time as the driving current rises, as described above. It is accompanied by a time delay. Further, the elongated main body 7 returns to its original position with a time delay after the driving current falls.

As is clear from the comparison between the waveform (S1) for commanding the drive current in FIG. 6(B) and the waveform (S2) for commanding the light-emission current in FIG. 6(C), the light emission drive circuit 13 The corresponding light-emitting current is started up with a delay of a first time t1 from the rise of the drive current, and the corresponding light-emission current is turned down with a delay of a second time t2 from the fall of the drive current. Furthermore, in the present embodiment, the second time t2 is a period when the shape memory alloy is stopped after the current supply circuit 9 stops supplying the desired current to the corresponding shape memory alloy linear body 21A, 21B, or 21C. The first time t1 is approximately equal to the time te until the linear body 21A, 21B or 21C stops deforming, and the first time t1 is the time when the desired current is supplied from the current supply circuit 9 to the corresponding shape memory alloy linear body 21A, 21B or 21C. This is approximately equal to the time te until the shape memory alloy linear body 21A, 21B, or 21C starts deforming after starting to individually supply the .

Note that in this embodiment, the driving current gradually increases at the rising edge, gradually decreases at the falling edge, and there is a period (fixed) in which the current value is constant between the rising edge and the falling edge. time).

As described above, according to the three-dimensional motion display device of this embodiment, the movement of the shape memory alloy linear bodies 21A, 21B, and 21C arranged inside the elongated main body 7 and the movement of the elongated main body 7 It is possible to eliminate the asynchrony with the light emission of the light emitting means 12 arranged at the tip. Thereby, the expression or action intended by the user using the three-dimensional motion display device can be conveyed to the viewer without any discomfort.

Note that in the above-described embodiments, the response to the delay in the movement of the actuator with respect to the light emission operation of the LED was specified mainly on the side of the light emission drive circuit 13 mounted on each linear actuator. , the current supply circuit 9 side that supplies current to each linear actuator 3 can also be specified. That is, the plurality of current supply circuits 9 have an advance adjustment function that adjustably advances at least one of the rise and fall of the driving current (S1) with respect to at least one of the rise and fall of the light emitting current (S2). may have. The plurality of current supply circuits 9 may advance at least one of the rise and fall of the driving current with respect to one of the rise and fall of the light emitting current.

As shown in FIGS. 1 and 2, the three-dimensional motion display device 1 of this embodiment includes a flexible elongated main body 7 with one end serving as a fixed end and the other end serving as a free end; An attitude change mechanism 6 that changes the attitude of the elongated main body 7 in any direction in response to a change command, and a plurality of light emitting lights provided at the other ends of the plurality of elongated main bodies 7 and turned on in response to a light emitting command. A linear actuator assembly group 4 constituted by a plurality of linear actuators 3 having a means 12 is electrically connected to one electrical connector 2 to form a unit.

According to this embodiment, the linear actuator assembly group 4 constituted by a plurality of linear actuators 3 is electrically connected to one electrical connector 2 to unitize the three-dimensional motion display device 1. Therefore, there is no need to install linear actuators one by one on the base as in the past. In addition, by simply connecting one electrical connector 2 to an external connector connected to an external power supply circuit and a command generation device 22, power can be supplied and commands to the attitude changing mechanism 6 and the light emitting means 12 of a plurality of elongated main bodies 7. supply becomes possible. As a result, the present embodiment has higher versatility than conventional three-dimensional motion display devices, and can be used not only as a simple object but also as a light source for lighting equipment, It can also be used as an information providing element that provides information through a combination of the posture of the elongated body and the light emitted from the plurality of light emitting means.

FIGS. 7A and 7B show front views of an embodiment in which the three-dimensional motion display device 1 of the present invention is applied to a lighting device. In the embodiment of FIG. 7(B), the electrical connector 2 has a configuration that can be attached to a socket outlet into which a light bulb is attached. When such an electrical connector is used, power can be supplied to the attitude changing mechanism (6) and the light emitting means (12) of the plurality of elongated main bodies 7 by simply attaching it to a commercially available socket outlet like a light bulb. becomes possible. In this case, the attitude change command and the light emission command may be supplied using a power distribution line to which the socket outlet is connected, or may be supplied wirelessly.

The lighting device of this embodiment has a configuration in which the linear actuator assembly group 4 is housed inside a cover member 23 that is attached to the electrical connector 2 and has a light transmittance that allows the inside to be seen from the outside. . The cover member 23 has the same shape as a glass bulb of a light bulb. If the three-dimensional motion display device 1 is shaped like this, it can be directly attached to an existing socket outlet and used as a unique illumination, and it can also be used as an information transmitting element that can visually recognize information. It can also be used as

For example, in an information transmission method of transmitting information using the three-dimensional motion display device 1 constituting the illumination device shown in FIGS. Information is transmitted by the combination of light emission patterns (12). For example, when using a smartphone to display incoming emails, if the sender of the email is work-related and it is necessary to respond normally, the elongated body of the linear actuator group 4 7 is fixed, the color of the light emitting means (12) is blue, and when it is necessary to respond with priority, the posture of the elongated main body 7 of the linear actuator assembly group 4 is randomly changed. If the color of the light emitting means (12) is set to blue, and it is necessary to respond with the highest priority, the color of the light emitting means (12) is changed while randomly changing the posture of the elongated main body 7 of the linear actuator assembly group 4. Information can be transmitted by changing the display, such as by making it blink blue.

Further, as shown in FIG. 7(C), a plurality of three-dimensional motion display devices 1 are arranged side by side, and the postures of the plurality of elongated bodies 7 of the linear actuator assembly group 4 of each three-dimensional motion display device 1 are adjusted. Of course, information may be transmitted by a combination of light emitting patterns of the light emitting means (12).

FIG. 8(A) is a perspective view of another embodiment of the three-dimensional motion display device of the present invention, and FIG. 8(B) is a diagram showing a mode in which a linear actuator is fixed to a fixed circuit board. 8(C) is a perspective view of the individual circuit board. Note that in FIG. 8(C), illustration of the LED is omitted. In the present embodiment, the mounting board 5' includes, for example, a fixed circuit board 50 to which one end of the elongated main body 7 of a plurality of linear actuators 3 included in one linear actuator assembly group is fixed, and a fixed circuit board 50 to which one end of the elongated main body 7 of a plurality of linear actuators 3 included in one linear actuator assembly group is fixed. It is provided with a plurality of individual circuit boards 51 on which individual drive circuits 8 provided correspondingly to each other are mounted. A board stacking unit 53 configured by stacking individual circuit boards 51 corresponding to the number of linear actuators provided with individual drive circuits 8 is fixed below the fixed circuit board 50. The fixed circuit 5 and the plurality of individual circuit boards 51 are formed around the through holes h on each board by passing connecting conductor pins 52 through a plurality of through holes h formed along the outer periphery of each board. By soldering the connecting conductor pin 52 to the connecting electrode, they are mechanically and electrically connected to each other. Control signals and power are transmitted from the lowest individual circuit board 51 to the upper individual circuit board 51 via connection conductor pins 52. Note that the method for fixing the elongated main body 7 of the linear actuator 3 to the fixed circuit board 50 is arbitrary. For example, by fixing the end portions of the shape memory alloy linear bodies 21A, 21B, and 21C to electrodes formed on the individual substrate 50 with eyelets connected by soldering, the shape memory alloy linear bodies 21A, 21B, and 21C The elongated main body 7 may be fixed using the tension of 21C.

FIG. 9(A) is a perspective view of still another embodiment of the three-dimensional motion display device of the present invention, and FIG. 9(B) is a diagram showing a mode in which a linear actuator is fixed to a fixed circuit board. In this embodiment, the mounting board 5' includes one upper fixed circuit board 50 to which one end of the elongated main body 7 of a plurality of linear actuators 3 included in a plurality of linear actuator assembly groups is fixed, and one upper fixed circuit board 50. A plurality of board stacking units 53A to 53D are provided in which a plurality of individual circuit boards 51 on which individual drive circuits 8 provided corresponding to the plurality of linear actuators 3 included in the linear actuator set group are mounted are stacked. The plurality of board stacking units 53A to 53D are also fixed to the lower fixed circuit board 54. In this embodiment, the number of the plurality of board stacking units 53A to 53D arranged under the upper fixed circuit board 50 and above the lower fixed circuit board 54 can be increased arbitrarily. Therefore, by horizontally arranging a plurality of board stacking units 53A to 53D made by preparing and stacking a plurality of individual drive circuits 51 according to the number of linear actuators 3, a mounting board 5' that constitutes a drive circuit is formed. By configuring this, it is possible to increase versatility even when the number of linear actuators increases.

FIG. 10 is an exploded perspective view of another embodiment of the three-dimensional motion display device of the present invention. In the present embodiment, the mounting board 5' includes, for example, a fixed circuit board 50 to which one end of the elongated main body 7 of a plurality of linear actuators 3 included in one linear actuator assembly group is fixed, and a plurality of A plurality of individual circuit boards 51 on which individual drive circuits 8 are mounted are provided corresponding to the linear actuators 3, and second and third fixed circuit boards 50A and 50B to which the plurality of individual circuit boards 51 are fixed. We are prepared. Between the second fixed circuit board 50A and the third fixed circuit board 50B, a plurality of individual circuit boards 51 corresponding to the number of linear actuators equipped with individual drive circuits 8 are arranged on the fixed circuit boards 50A and 50B. A substrate stacking unit 53 configured by stacking in a direction perpendicular to the plane is fixed. The second and third fixed circuit boards 50A and 50B and the plurality of individual circuit boards 51 have connection terminals t passed through the plurality of through holes h formed in the second and third fixed circuit boards 50A and 50B, respectively. By soldering the connection terminal t to the connection electrode formed around the through hole h on each substrate, they are mechanically and electrically connected to each other. The first fixed circuit board 50 and the second fixed circuit board 50A each have a plurality of through holes h0 formed along the outer periphery of each board, with connection conductor pins 52 passing through each through hole h0. By soldering a connecting conductor pin 52 to a connecting electrode formed around the connecting electrode, the connecting conductor pins 52 are mechanically and electrically connected to each other. Control signals and power are transmitted from the bottom fixed circuit board 50B to the individual circuit boards 51 above it. Note that the method for fixing the elongated main body 7 of the linear actuator 3 to the first fixed circuit board 50 is arbitrary.

According to the three-dimensional motion display device of the present invention, by simply connecting the mounting board to an external power supply circuit and a command generation circuit, power and commands can be supplied to the attitude changing mechanisms and light emitting means of the plurality of elongated bodies. becomes possible. As a result, compared to conventional 3D motion display devices, it is highly versatile and can be used not only as a simple object, but also as a light source for lighting equipment, and can be It can also be used as an information providing element that provides information by combining the light emitted from the light emitting means.

1 Three-dimensional motion display device 2 Electrical connector 3 Linear actuator 4 Linear actuator assembly group 5 Circuit board (mounting board)
5' Mounting board 6 Attitude change mechanism 7 Elongated main body 8 Individual drive circuit 9 Current supply circuit 10 Linear spring member 11 Wiring circuit 12 Light emitting means 12A LED
13 Light emission drive circuit 14 Enameled wire 15 Diffused light cap 16 Central through hole 17, 18, 19 Peripheral through hole 20 Eyelet 21, 21A, 21B, 21C Shape memory alloy linear body 22 Command generator 50, 50A, 50B, fixed circuit Board 51 Individual circuit board 53 Board stacking unit

Claims (17)

a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end; an attitude changing mechanism that changes the attitude of the elongated main body in an arbitrary direction in response to an attitude change command; One or more linear actuator assembly groups constituted by a collection of a plurality of linear actuators each having a plurality of light emitting means provided at the other end of the elongated body and lit in response to a light emission command; A three-dimensional motion display device, characterized in that it is mounted on a mounting board and formed into a unit, comprising a linear actuator and a drive circuit for individually driving the plurality of light emitting means,
The drive circuit is electrically connected to a power source via an electrical connector,
The three-dimensional motion display device has a configuration in which the electrical connector can be attached to a socket outlet into which a light bulb is attached . The three-dimensional motion display device according to claim 1 , wherein the linear actuator assembly group and the mounting board are housed inside a cover member that is optically transparent and attached to the electrical connector. 3. The three-dimensional motion display device according to claim 2 , wherein the cover member is made of a transparent material that allows the linear actuator assembly to be visually seen from the outside. The three-dimensional motion display device according to claim 2 or 3 , wherein the cover member has the same shape as a glass bulb of a light bulb. a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end; an attitude changing mechanism that changes the attitude of the elongated main body in an arbitrary direction in response to an attitude change command; One or more linear actuator assembly groups constituted by a collection of a plurality of linear actuators each having a plurality of light emitting means provided at the other end of the elongated body and lit in response to a light emission command; A three-dimensional motion display device, characterized in that it is mounted on a mounting board and formed into a unit, comprising a linear actuator and a drive circuit for individually driving the plurality of light emitting means,
The attitude change mechanism includes a plurality of shape memory alloy linear bodies that are inside the elongated main body and extend in the longitudinal direction of the elongated main body, and is included in the drive circuit and receives the attitude change command. a current supply circuit that individually supplies a desired driving current to the shape memory alloy linear body according to the shape memory alloy linear body;
The drive circuit includes a light emission drive circuit that individually supplies a light emission current to each of the plurality of light emitting means to cause each of the plurality of light emitting means to emit light in response to the light emission command,
The current supply circuit and the light emitting drive circuit are mounted on the mounting board,
The light emitting drive circuit has a delay adjustment function that adjustably delays at least one of the rise and fall of the light emitting current with respect to at least one of the rise and fall of the drive current.・Display device. 6. The three-dimensional motion display device according to claim 5 , wherein the mounting board houses a receiving circuit that receives the attitude change command and the light emission command transmitted via an indoor power distribution line or wirelessly. 6. The three-dimensional motion controller according to claim 5 , wherein the light emitting drive circuit causes the corresponding light emitting current to fall with a predetermined time delay after the falling of the driving current by the delay adjustment function. display device. The predetermined time is a time period from when the current supply circuit stops supplying the desired current to the corresponding shape memory alloy linear body until the shape memory alloy linear body stops deforming. The three-dimensional motion display device according to item 7 . The light emitting drive circuit uses the delay adjustment function to start the corresponding light emitting current with a first time delay after the rise of the drive current, and with a second time delay after the fall of the drive current. 8. The three-dimensional motion display device according to claim 7 , wherein the corresponding light emitting current is lowered in response to a change in the light emitting current. The first time is the time from when the current supply circuit starts individually supplying desired currents to the corresponding shape memory alloy linear bodies until the shape memory alloy linear bodies start deforming. and
The second time is the time period from when the current supply circuit stops individually supplying the desired current to the corresponding shape memory alloy linear body until the shape memory alloy linear body stops deforming. The three-dimensional motion display device according to claim 9 . The driving current has a portion where the current gradually increases at the rising edge, gradually decreases at the falling edge, and has a constant current value between the rising edge and the falling edge. The three-dimensional motion display device according to claim 9 . a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end; an attitude changing mechanism that changes the attitude of the elongated main body in an arbitrary direction in response to an attitude change command; One or more linear actuator assembly groups constituted by a collection of a plurality of linear actuators each having a plurality of light emitting means provided at the other end of the elongated body and lit in response to a light emission command; A three-dimensional motion display device, characterized in that it is mounted on a mounting board and formed into a unit, comprising a linear actuator and a drive circuit for individually driving the plurality of light emitting means,
The mounting board is mounted with a fixed circuit board to which the one end of the plurality of linear actuators included in one linear actuator assembly group is fixed, and an individual drive circuit provided corresponding to each of the plurality of linear actuators. A three -dimensional motion display device comprising: a plurality of individual circuit boards; and a board stacking unit in which the plurality of individual circuit boards are stacked under the fixed circuit board. 13. The three-dimensional motion display device according to claim 12 , wherein the plurality of individual circuit boards are stacked in a direction perpendicular to a board surface of the fixed circuit board to form the board stack unit. 13. The three-dimensional motion controller according to claim 12 , wherein the plurality of individual circuit boards are stacked so that each board surface extends in a direction perpendicular to the board surface of the fixed circuit board to constitute the board stacking unit. display device. a flexible elongated main body with one end serving as a fixed end and the other end serving as a free end; an attitude changing mechanism that changes the attitude of the elongated main body in an arbitrary direction in response to an attitude change command; One or more linear actuator assembly groups constituted by a collection of a plurality of linear actuators each having a plurality of light emitting means provided at the other end of the elongated body and lit in response to a light emission command; A three-dimensional motion display device, characterized in that it is mounted on a mounting board and formed into a unit, comprising a linear actuator and a drive circuit for individually driving the plurality of light emitting means,
The mounting board is
one fixed circuit board to which the one ends of the plurality of linear actuators included in the plurality of linear actuator assembly groups are fixed;
comprising a plurality of board stacking units in which a plurality of individual circuit boards on which individual drive circuits provided corresponding to each of the plurality of linear actuators included in one linear actuator set group are mounted are stacked;
A three -dimensional motion display device having a structure in which the plurality of board stacking units are fixed under the fixed circuit board. A lighting fixture using the three-dimensional motion display device according to any one of claims 1 to 15 as a light source. An information transmission method using the three-dimensional motion display device according to any one of claims 1 to 15 ,
An information transmission method characterized in that information is transmitted by a combination of the postures of the plurality of elongated bodies and the light emission patterns of the plurality of light emitting means.