JP2012089404A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To downsize and reduce cost of a mechanism of a lighting system for changing directions of a lamp fitting.SOLUTION: In the lighting system 10, a driving unit 14, arranged outside the lamp fitting 12, changes directions of the lamp fitting 12 so as to change irradiation directions of light. The driving unit 14 is provided with a first rotating mechanism 20 and a second rotating mechanism 22. The first rotating mechanism 20 rotates the lamp fitting 12 around a first axis A1. The second rotating mechanism 22 rotates the lamp fitting 12 around a second axis A2 extended outside the lamp fitting 12 and vertical to a lamp fitting 12 light axis.

Description

  The present invention relates to a lighting device, and more particularly to a lighting device capable of changing a light irradiation direction.

  Conventionally, a spotlight device that can change the direction of light irradiation by a remote controller or the like has been proposed (see, for example, Patent Document 1 or 2). By using the remote controller in this way, the light irradiation direction can be changed even at a position away from the lamp.

JP 7-312296 A Japanese Patent Laid-Open No. 10-69805

  In recent years, with the development of light sources such as LEDs, development of lamps that are compact and lightweight and capable of emitting light with high directivity such as spotlights has been promoted. As the lamp is reduced in size and weight, a mechanism for changing the direction of the lamp is also required to be reduced in size and cost.

  Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to reduce the size and cost of a mechanism for changing the direction of a lamp.

  In order to solve the above-described problems, an illumination device according to an aspect of the present invention includes a lamp and a drive unit that is disposed outside the lamp and changes the direction of the lamp so as to change the light irradiation direction. The drive unit includes a first rotation mechanism that rotates the lamp around the first axis, and a second rotation mechanism that rotates the lamp around a second axis that is non-parallel to the first axis.

  According to this aspect, the drive unit that changes the direction of the lamp can be arranged outside the lamp. For this reason, the lamp to be driven can be reduced in size and weight, and therefore the drive unit for driving the lamp can also be reduced in size and cost.

  The second rotation mechanism may be provided so as to rotate the lamp around a second axis extending to the outside of the lamp and perpendicular to the lamp optical axis.

  For example, if the lamp is to be rotated about an axis passing through the lamp, it is difficult to increase the range of angles at which the lamp can be rotated without interfering with the drive unit during rotation. According to this aspect, since the lamp can be rotated around the axis extending to the outside of the lamp, it is possible to increase the rotatable angle of the lamp without interfering with the drive unit. For this reason, the changeable area | region of the irradiation direction of light can be taken widely.

  The first rotating mechanism includes a first member that interlocks with the rotation of the lamp about the first axis, and a first member before the lamp reaches the first end position when the lamp rotates in the first rotation direction. The lamp is arranged so as to abut against the member. After the abutment, when the lamp further rotates in the first rotation direction and reaches the first end position, the lamp is pushed by the first member and moved to the first position. And when the lamp is rotated in the second rotation direction opposite to the first rotation direction, the lamp is arranged to contact the first member before reaching the second end position, and further after the contact A second member provided to move to the second position by being pushed by the first member when the lamp rotates in the second rotation direction and reaches the second terminal position; A first sensor for detecting that the second position has been reached, and a second sensor for detecting that the second member has reached the second position. Support and, may have.

  For example, if a member that rotates coaxially with the lamp is directly detected by a sensor such as a switch to detect the end position of the lamp, the member is detected by the sensor before one rotation, and the first end position of the lamp is detected. It is difficult to widen the second end position to 360 degrees or more. According to this aspect, it is possible to expand the first terminal position and the second terminal position to 360 degrees or more by detecting the terminal position of the lamp via the second member. For this reason, the illuminating device which can change the irradiation direction of light more widely is realizable.

  The second rotating mechanism is interlocked with the rotation of the lamp, and the detected member provided to be detected by the sensor when the lamp rotates and reaches the end position, and the driving force of the actuator is transmitted to the lamp to transmit the lamp And a transmission mechanism for rotating the device. The transmission mechanism is configured to maintain the interlock with the detected member even when the operation of the actuator is stopped when the torque exceeding the specified value is given to the lamp around the second axis. Thus, the lamp may be provided so as to be rotated about the second axis.

  According to this aspect, first, the lamp can be rotated by rotating the lamp by hand or the like. Therefore, the user can manually change the light irradiation direction without operating the actuator included in the second rotation mechanism. At this time, the detected member can also be rotated together with the lamp. For this reason, the end position of the lamp can be appropriately detected by the sensor even after the user changes the direction of the lamp by hand.

  According to the present invention, the mechanism for changing the direction of the lamp can be reduced in size and cost.

(A) is a front view of the illuminating device which concerns on this embodiment, (b) is a bottom view of the illuminating device which concerns on this embodiment. It is a front view of the illuminating device which concerns on this embodiment when the cover of a drive unit is removed. (A)-(c) is a figure which shows the structure of the 1st rotation mechanism which concerns on this embodiment. (A)-(c) is a figure showing operation | movement of the 1st limit detection unit which concerns on this embodiment. It is a front view of the 2nd rotation mechanism concerning this embodiment. It is RR sectional drawing in FIG. 5 of a 2nd rotation mechanism. It is a functional block diagram which shows typically the structure of the illuminating device which concerns on this embodiment.

  Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings.

  Fig.1 (a) is a front view of the illuminating device 10 which concerns on this embodiment, FIG.1 (b) is a bottom view of the illuminating device 10 which concerns on this embodiment. The illumination device 10 includes a lamp 12, a drive unit 14, and a support unit 16. The support unit 16 is fixed to a surface facing downward such as a ceiling. The support unit 16 supports the drive unit 14. The drive unit 14 is disposed outside the lamp 12, and is provided so as to support the lamp 12 and to change the direction of the lamp 12 so as to change the light irradiation direction.

  The lamp 12 has a plurality of LED (Light Emitting Diode) light sources 18 arranged on the same mounting surface. The plurality of LED light sources 18 are arranged so that each optical axis is perpendicular to the mounting surface. In the present embodiment, each of the plurality of LED light sources 18 is provided to emit white light. In addition, since the lamp 12 which has the LED light source 18 is well-known, the detailed description regarding the structure is abbreviate | omitted.

  The LED light source 18 may be provided to emit other colors. For example, the plurality of LED light sources 18 can be irradiated with white light by additive color mixing. An LED light source 18 that emits blue light, an LED light source 18 that emits green light, and an LED light source 18 that emits red light may be included. Furthermore, each LED light source 18 may be provided so that it can be individually turned on and off. Thereby, it becomes possible to irradiate light of various colors with the lamp 12.

  FIG. 2 is a front view of the illumination device 10 according to the present embodiment when the cover of the drive unit 14 is removed. The drive unit 14 includes a first rotation mechanism 20 and a second rotation mechanism 22. The second rotating mechanism 22 supports the lamp 12 and is provided to rotate the lamp 12 about a second axis A2 that extends to the outside of the lamp 12 and is perpendicular to the optical axis of the lamp 12. In the present embodiment, the second axis A2 extends in the horizontal direction away from the optical axis of the lamp 12 from the side surface of the outer surface of the lamp 12, that is, the outer surface between the light irradiation surface of the lamp 12 and the opposite surface. Exist.

  For example, when the second rotating mechanism 22 is provided so as to rotate the lamp 12 around the axis passing through the lamp 12, the range of angles at which the lamp 12 can rotate without interfering with the second rotating mechanism 22 is increased. It becomes difficult to take. By rotating the lamp 12 around the second axis A2, it is possible to increase the rotatable angle of the lamp 12. For this reason, the irradiation position of the light by the lamp 12 can be widely changed in the vertical direction.

  The first rotating mechanism 20 rotates the lamp 12 about the first axis A1 by rotating the second rotating mechanism 22 about the first axis A1 extending in the vertical direction. Thereby, the irradiation position of the light by the lamp 12 can be changed in the horizontal direction. In the present embodiment, the first rotating mechanism 20 is configured to be able to rotate the lamp 12 by 360 degrees as will be described later, and generates a blind spot in the horizontal direction within the light irradiable range. It is avoiding.

  The first rotating mechanism 20 may rotate the lamp 12 around an axis extending in a predetermined direction other than vertical. Further, the second rotation mechanism 22 may rotate the lamp 12 around an axis extending in a predetermined direction other than horizontal. Furthermore, the axis by which the first rotating mechanism 20 rotates the lamp 12 and the axis by which the second rotating mechanism 22 rotates the lamp 12 do not have to be orthogonal to each other, and may form a non-parallel predetermined angle.

  Fig.3 (a)-FIG.3 (c) are figures which show the structure of the 1st rotation mechanism 20 which concerns on this embodiment. FIG. 3A is a bottom view of the first rotation mechanism 20. FIG. 3B is a view of the first rotation mechanism 20 viewed from the viewpoint P in FIG. FIG.3 (c) is QQ sectional drawing in Fig.3 (a). Hereinafter, the configuration of the first rotating mechanism 20 will be described in detail with reference to FIGS. 3 (a) to 3 (c).

  The first rotation mechanism 20 includes a support unit 40, a first motor 46, a transmission mechanism 52, and a first limit detection unit 70. The support unit 40 includes a support plate 42 and four spacers 44. The spacer 44 supports the support plate 42 so as to be spaced from the support unit 16. The first motor 46 that is an actuator is fixed to the lower surface of the support plate 42 via a motor support member 48. A worm gear 50 is attached to the rotating shaft of the first motor 46 and is supported by a gear support member 49.

  The transmission mechanism 52 includes a shaft 54, a gear 56, and a block 58. The shaft 54 is supported by the support plate 42 so as to extend vertically downward from the support plate 42. The gear 56 is rotatably attached to the shaft 54. Block 58 is also rotatably attached to shaft 54. The central axis of the shaft 54 is the first axis A1. The block 58 is restricted from rotating relative to the gear 56 by the plunger 90. For this reason, the block 58 normally rotates around the first axis A1 together with the gear 56.

  The gear 56 meshes with the worm gear 50. For this reason, when the 1st motor 46 act | operates, the gear 56 rotates and the block 58 also rotates with this. The second rotation mechanism 22 is attached to the block 58. For this reason, by operating the first motor 46, the lamp 12 can be rotated about the first axis A1 via the second rotation mechanism 22.

  The first limit detection unit 70 includes a pin 72, a lever 74, a first switch 76, a second switch 78, a first end pin 80, a second end pin 82, a coil spring 84, a pin 86, and a bracket 88. The pin 72 (first member) is attached to the side surface of the block 58 so as to extend in the horizontal direction. As described above, the block 58 rotates around the first axis A <b> 1 together with the lamp 12 via the second rotation mechanism 22. Therefore, the pin 72 is interlocked with the rotation of the lamp 12 around the first axis A1.

  The lever 74 (second member) has a protruding portion 74a, an annular portion 74b, and a tip portion 74c. The annular portion 74b is attached between the gear 56 and the support plate 42 so as to be rotatable about the first axis A1. The distal end portion 74c is formed so as to protrude outward from the annular portion 74b. The protruding portion 74a is formed to protrude downward from the approximate center of the tip end portion 74c. Specifically, the protrusion 74 a is disposed at a position where the protrusion 74 a comes into contact with the pin 72 when the first motor 46 operates and the block 58 rotates.

  The pin 86 is attached to the lower surface of the support plate 42 so as to extend downward. One end of a coil spring 84 is hung on the tip of the pin 86. The other end of the coil spring 84 is attached to a portion of the lever 74 that is radially outward from the protruding portion 74a. The coil spring 84 applies a pulling force to the lever 74. For this reason, the lever 74 is normally positioned so as to extend toward the pin 86. Hereinafter, the position of the lever 74 at this time is referred to as an “initial position”. Further, in FIG. 3, the clockwise direction is described as “first rotation direction R1”, and the counterclockwise direction is described as “second rotation direction R2”.

  The first switch 76 and the second switch 78 are supported by the support plate 42 via the bracket 88. The first switch 76 is disposed at a position where the lever 74 is pushed and turned on by the distal end portion 74c when the lever 74 rotates a predetermined angle in the first rotation direction R1 from the initial position. Hereinafter, the position of the lever 74 when the first switch 76 is turned on is referred to as a “first position”. The second switch 78 is disposed at a position where the lever 74 is pushed and turned on by the tip end portion 74c when the lever 74 rotates a predetermined angle in the second rotation direction R2 from the initial position. Hereinafter, the position of the lever 74 when the second switch 78 is turned on is referred to as a “second position”.

  The first end pin 80 is disposed so as to contact the lever 74 when the lever 74 further rotates in the first rotation direction R1 after the tip 74c of the lever 74 contacts the first switch 76. The first end pin 80 functions as a rotation restricting member that restricts the rotation of the lever 74 in the first rotation direction R1. The second end pin 82 is disposed so as to contact the lever 74 when the lever 74 further rotates in the second rotation direction R2 after the tip 74c of the lever 74 contacts the second switch 78. The second end pin 82 functions as a rotation restricting member that restricts the rotation of the lever 74 in the second rotation direction R2.

  The first rotating mechanism 20 according to the present embodiment can manually rotate the lamp 12 around the first axis A1. Specifically, when a torque greater than a specified value is applied to the lamp 12 in the first rotation direction R1 or the second rotation direction R2, the plunger 90 performs relative fixing between the block 58 and the gear 56. To release. Thereby, a differential is given between the block 58 and the gear 56, and the transmission of the driving force from the first motor 46 to the lamp 12 by the transmission mechanism 52 is released. Thus, the plunger 90 functions as a clutch. Thus, even when a differential is generated between the block 58 and the gear 56, the interlock between the rotation of the pin 72 and the rotation of the lamp 12 around the first axis A1 is maintained.

  As described above, the transmission mechanism 52 is connected to the pin 72 even when the torque of the specified value or more about the first axis A1 is applied to the lamp 12 and the operation of the first motor 46 is stopped. The lamp 12 is provided to be rotated about the first axis A1 by the torque while maintaining the interlock. Thereby, even when the user manually rotates the lamp 12 around the first axis A1, when the lamp 12 is rotated by the first motor 46, the lamp 12 is moved to the first terminal position or the second terminal position. Can be stopped properly.

  4A to 4C are diagrams illustrating the operation of the first limit detection unit 70 according to the present embodiment. The lamp 12 according to the present embodiment is configured to be able to rotate 360 degrees about the first axis A1. Hereinafter, in this rotatable range, the terminal position in the first rotational direction R1 is referred to as “first terminal position”, and the terminal position in the second rotational direction R2 is referred to as “second terminal position”. Needless to say, the rotatable angle of the lamp 12 around the first axis A1 is not limited to 360 degrees, and may be a predetermined angle greater than 360 degrees, for example, or a predetermined angle smaller than 360 degrees. May be.

  The lever 74 is disposed so as to contact the pin 72 before the lamp 12 reaches the first terminal position when the lamp 12 rotates in the first rotation direction R1. When the lamp 74 further rotates in the first rotation direction R1 and reaches the first terminal position after the protrusion 74a abuts on the pin 72, the lever 74 is pushed by the pin 72, It moves to the 1st position shown to 4 (a). The first switch 76 detects that the lever 74 has reached the first position when it is turned on, and detects that the lamp 12 has reached the first terminal position.

  FIG. 4B shows the first limit detection unit 70 when the lamp 12 moves in the second rotation direction R2 from the state shown in FIG. When the lamp 12 is rotated in the second rotational direction R2 from when the lamp 12 is in the first terminal position, the pin 72 remains in contact with the protruding portion 74a of the lever 74 and remains in the second rotational direction R2 until the lever 74 reaches the initial position. Rotate. When the first motor 46 is further operated after the lever 74 reaches the initial position and the lamp 12 rotates in the second rotation direction R2, the pin 72 rotates away from the protrusion 74a of the lever 74, and the lever 74 is moved to the initial position. Maintained.

  The lever 74 is disposed so as to come into contact with the pin 72 before the lamp 12 reaches the second terminal position when the lamp 12 rotates in the second rotation direction R2. When the lamp 74 further rotates in the second rotation direction R2 and reaches the second end position after the protrusion 74a abuts on the pin 72, the lever 74 is pushed by the pin 72, Move to the second position shown in 4 (c). The second switch 78 detects that the lever 74 has reached the second position when it is turned on, and detects that the lamp 12 has reached the second terminal position.

  The lighting device 10 has an electronic control unit (not shown) described later. The electronic control unit is a CPU that executes various arithmetic processes, a ROM that stores various control programs, hardware such as a RAM that is used as a work area for data storage and program execution, and is executed using these hardware Configured by software. The electronic control unit is connected to the first motor 46, and controls the operation of the first motor 46 by giving a drive signal to the first motor 46. The electronic control unit stops the operation of the first motor 46 when the first switch 76 or the second switch 78 is turned on. Thereby, the lamp 12 can be appropriately stopped at the first terminal position or the second terminal position.

  FIG. 5 is a front view of the second rotation mechanism 22 according to the present embodiment. The second rotation mechanism 22 includes a second motor 100, a worm gear 102, a transmission mechanism 110, a support member 112, and a second limit detection unit 114.

  A worm gear 102 is attached to the rotation shaft of the second motor 100 that is an actuator. The support member 112 is provided to be rotatable about the second axis A2. The lamp 12 is attached to the tip of the support member 112. The transmission mechanism 110 converts the rotational motion of the worm gear 102 when the second motor 100 is operated into the rotational motion of the support member 112. Since the lamp 12 is attached to the support member 112, the transmission mechanism 110 transmits the driving force of the second motor 100 to the lamp 12 to rotate the lamp 12.

  The second limit detection unit 114 includes a member to be detected 116, a third switch 118, and a fourth switch 120. The support unit 16 is formed in a substantially triangular shape, and is provided to be rotatable around one end periphery. The detected member 116 is provided in conjunction with the rotation of the support member 112 around the second axis A2. Specifically, the detected member 116 rotates counterclockwise in conjunction with the clockwise rotation (hereinafter referred to as “third rotation direction R3”) of the support member 112 around the second axis A2 in FIG. The support member 112 rotates about the second axis A2 counterclockwise in FIG. 5 (hereinafter referred to as “fourth rotation direction R4”).

  The third switch 118 is arranged to be pushed and turned on by the detected member 116 when the detected member 116 rotates counterclockwise in FIG. 5 and reaches a predetermined position. A position in the rotation direction of the lamp 12 around the second axis A2 at this time is defined as a “third terminal position”. Thus, the detected member 116 is interlocked with the rotation of the lamp 12 in the third rotation direction R3, and the third switch 118 rotates when the lamp 12 rotates in the third rotation direction R3 and reaches the third terminal position. It is provided to be detected.

  The fourth switch 120 is arranged to be pushed by the detected member 116 and turned on when the detected member 116 rotates clockwise in FIG. 5 and reaches a predetermined position. A position in the rotation direction of the lamp 12 around the second axis A2 at this time is defined as a “fourth end position”. Thus, the detected member 116 is interlocked with the rotation of the lamp 12 in the fourth rotation direction R4, and is detected by the third switch 118 when the lamp 12 rotates in the fourth rotation direction R4 and reaches the fourth terminal position. Is provided.

  6 is a cross-sectional view of the second rotating mechanism 22 taken along the line RR in FIG. The transmission mechanism 110 includes a first shaft 134, a central gear 136, a gear 138, a gear 140, a second shaft 142, a gear 144, a gear 146, and a ball plunger 148. The second rotation mechanism 22 includes a plate 130 and a plate 132 that are formed to be elongated, and is disposed so as to face each other and extend in the vertical direction.

  Each of the plates 130 and 132 has an insertion hole into which the first shaft 134 is inserted, and the first shaft 134 is inserted into and fixed to each insertion hole of the plates 130 and 132. At the space between the plate 130 and the plate 132, a central gear 136 is attached to the first shaft 134 on the first shaft 134, and a gear 138 and a gear 140 are also attached to the first shaft 134 on both sides of the first shaft 134, respectively. It has been.

  The gear 140 and the first shaft 134 are fixed to each other by a pin (not shown) so as to rotate integrally, but the central gear 136 and the gear 140 are not fixed to the first shaft 134, and the first shaft It is relatively rotatable with respect to 134. The gear 138 and the central gear 136 are fixed to each other by a spacer 141 so as to rotate integrally.

  When the central gear 136 is attached to the first shaft 134, the central gear 136 meshes with the worm gear 102. For this reason, when the second motor 100 is operated, the central gear 136 is driven via the worm gear 102, and the gear 138 and the gear 140 are rotated accordingly.

  Each of the plates 130 and 132 also has an insertion hole into which the second shaft 142 is inserted. The second shaft 142 is inserted and fixed in each insertion hole of the plates 130 and 132. The gear 144 and the gear 146 are attached to the second shaft 142 via the bush 147 at the space between the plate 130 and the plate 132. At this time, the gear 144 and the gear 138 mesh with each other, and the gear 146 and the gear 140 mesh with each other. A support member 112 is disposed between the gear 144 and the gear 146.

  Here, the gear 146 and the support member 112 are fixed to each other by pins (not shown) so as to rotate together. On the other hand, the gear 144 and the support member 112 are fixed to each other by a ball plunger 148. For this reason, the gear 144 and the support member 112 normally rotate together. As described above, when the second motor 100 is operated, the support member 112 is rotated about the second axis A2 via the transmission mechanism 110, and the lamp 12 fixed to the support member 112 is also centered on the second axis A2. Rotate.

  The electronic control unit is also connected to the second motor 100, and controls the operation of the second motor 100 by giving a drive signal to the second motor 100. The electronic control unit stops the operation of the second motor 100 when the third switch 118 or the fourth switch 120 is turned on. Thereby, the lamp 12 can be appropriately stopped at the third terminal position or the fourth terminal position.

  The second rotating mechanism 22 can also manually rotate the lamp 12 about the second axis A2. Specifically, when a torque greater than a specified value is applied to the lamp 12 in the third rotation direction R3 or the fourth rotation direction R4, the ball plunger 148 moves relative between the gear 144 and the support member 112. Unpin. Thereby, a differential is given between the gear 144 and the support member 112, and the transmission of the driving force from the first motor 46 to the lamp 12 by the transmission mechanism 110 is released. Therefore, the ball plunger 148 functions as a clutch. On the other hand, since the support member 112 and the gear 146 are fixed, the support member 112 rotates, the gear 146 rotates, and the gear 140 that meshes with the gear 146 also rotates. Since the gear 140 and the first shaft 134 are fixed as described above, the first shaft 134 also rotates together with the gear 140, and the detected member 116 is interlocked.

  As described above, the transmission mechanism 110 detects the detected member 116 even when the operation of the second motor 100 is stopped when the torque exceeding the specified value is applied to the lamp 12 around the second axis A2. The lamp 12 is provided so as to be rotated about the second axis A2 by the torque while maintaining the linkage with the second axis A2. Thus, even when the user manually rotates the lamp 12 around the second axis A2, when the lamp 12 is driven to rotate by the second motor 100 thereafter, the lamp 12 is moved to the third terminal position and the fourth terminal position. Can be stopped properly.

  Note that a pin (not shown) is attached to the support member 112, and the plate 132 has a pin when the lamp 12 is manually rotated in the third rotational direction R3 beyond the third terminal position. A first stopper (not shown) part that abuts is provided. In addition, a second stopper (not shown) is provided that contacts the pin when the lamp 12 is manually rotated in the fourth rotation direction R4 beyond the fourth terminal position. Thereby, even when the lamp 12 is manually rotated around the second axis A2, the movable range is restricted.

  FIG. 7 is a functional block diagram schematically showing the configuration of the illumination device 10 according to the present embodiment. In FIG. 7, the electronic control unit 180 depicts functional blocks realized by cooperation of hardware such as CPU, ROM, RAM, and software. Therefore, these functional blocks can be realized in various forms by a combination of hardware and software.

  The electronic control unit 180 includes a reception unit 182, an operation signal acquisition unit 184, a lighting control unit 186, and an irradiation direction control unit 188. The receiving unit 182 receives a wireless signal transmitted from the remote controller 170. The operation signal acquisition unit 184 acquires various control requests to the lighting apparatus 10 by the user received from the remote controller 170 via the reception unit 182.

  The remote controller 170 is provided so that the lighting of the lamp 12 can be turned on and off, and the brightness at the time of lighting can be input. When the lighting of the lamp 12 is turned on or off, or the brightness at the time of lighting is input to the remote controller 170 by the user, the operation signal acquisition unit 184 acquires a lighting request, a turn-off request, or a dimming request via the receiving unit 182. . The electronic control unit 180 is provided so that lighting of the plurality of LED light sources 18 in the lamp 12 can also be controlled.

  When the lighting request is acquired, the lighting control unit 186 starts supplying power to the LED light source 18 and lights the lamp 12. When the turn-off request is acquired, the turn-on control unit 186 stops the supply of power to the LED light source 18 and turns off the lamp 12. When the dimming request is acquired, the lighting control unit 186 adjusts the amount of light from the lamp 12 by turning on or off some of the plurality of LED light sources 18 so that the brightness according to the dimming request is obtained. Note that the lighting control unit 186 may adjust the amount of light of each of the plurality of LED light sources 18 by adjusting the power supplied to each of the plurality of LED light sources 18 so that the brightness according to the dimming request is obtained.

  The remote controller 170 is provided so that the direction of light irradiation by the lamp 12 can also be input. Specifically, the remote controller 170 is provided so that a rotation request of the lamp 12 in each of the first rotation direction R1 to the fourth rotation direction R4 can be input. The operation signal acquisition unit 184 acquires a request for rotation of the lamp 12 in each of the first rotation direction R1 to the fourth rotation direction R4 via the reception unit 182.

  When a request for rotation of the lamp 12 in the first rotation direction R1 or the second rotation direction R2 is acquired, the irradiation direction control unit 188 operates the first motor 46 to move the lamp 12 around the first axis A1. Rotate in one rotation direction R1 or second rotation direction R2. At this time, when the first switch 76 or the second switch 78 is turned on, the irradiation direction control unit 188 stops the operation of the first motor 46 and the lamp 12 rotates beyond the first terminal position or the second terminal position. Avoid that.

  When a request to rotate the lamp 12 in the third rotation direction R3 or the fourth rotation direction R4 is acquired, the irradiation direction control unit 188 operates the second motor 100 to move the lamp 12 around the second axis A2. It is rotated in the third rotation direction R3 or the fourth rotation direction R4. At this time, when the third switch 118 or the fourth switch 120 is turned on, the irradiation direction control unit 188 stops the operation of the second motor 100, and the lamp 12 rotates beyond the third terminal position or the fourth terminal position. Avoid that.

  When the LED light source 18 is provided to emit various colors as described above, the remote controller 170 may be provided so that the color emitted by the lamp 12 can be input. In this case, the operation signal acquisition unit 184 acquires this color request via the reception unit 182. For example, the plurality of LED light sources 18 can be irradiated with white light by additive color mixing. In the case where the LED light source 18 that emits blue light, the LED light source 18 that emits green light, and the LED light source 18 that emits red light are included, the irradiation direction control unit 188 sends light of a color according to the color request from the lamp 12. Each of the LED light source 18 that emits blue light, the LED light source 18 that emits green light, and the LED light source 18 that emits red light is turned on or off so as to be irradiated. Note that the lighting control unit 186 may adjust the amount of light of each color by adjusting the power supplied to each of the LED light sources 18 so that light of a color according to the color request is emitted from the lamp 12. This makes it possible to change the color of light emitted from the lamp 12 using the remote controller 170.

  The present invention is not limited to the above-described embodiment, and an appropriate combination of the elements of this embodiment is also effective as an embodiment of the present invention. Various modifications such as various design changes can be added to the present embodiment based on the knowledge of those skilled in the art, and the embodiments with such modifications can be included in the scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 Illuminating device, 12 lamps, 14 drive unit, 18 LED light source, 20 1st rotation mechanism, 22 2nd rotation mechanism, 46 1st motor, 52 transmission mechanism, 58 block, 70 1st limit detection unit, 72 pins, 74 Lever, 74a Projection, 74b Ring, 74c Tip, 76 First Switch, 78 Second Switch, 90 Plunger, 100 Second Motor, 110 Transmission Mechanism, 112 Support Member, 114 Second Limit Detection Unit, 116 Covered Detecting member, 118 third switch, 120 fourth switch, 170 remote control, 180 electronic control unit, 182 receiving unit, 184 operation signal acquisition unit, 186 lighting control unit, 188 irradiation direction control unit.

Claims (4)

With lamps,
A drive unit disposed outside the lamp and changing the direction of the lamp so as to change the direction of light irradiation;
The drive unit includes: a first rotation mechanism that rotates the lamp around a first axis; and a second rotation mechanism that rotates the lamp around a second axis that is non-parallel to the first axis. A lighting device comprising:   2. The illumination according to claim 1, wherein the second rotation mechanism is provided so as to rotate the lamp about the second axis that extends to the outside of the lamp and is perpendicular to the lamp optical axis. apparatus. The first rotation mechanism is
A first member that interlocks with the rotation of the lamp about the first axis;
When the lamp rotates in the first rotation direction, the lamp is arranged to contact the first member before reaching the first terminal position, and after the contact, the lamp further rotates in the first rotation direction. When the first terminal position is reached, the lamp is pushed by the first member to move to the first position, and the lamp rotates in the second rotation direction opposite to the first rotation direction. The lamp is arranged so as to contact the first member before reaching the second end position, and after the contact, the lamp further rotates in the second rotation direction and reaches the second end position. A second member that is sometimes pushed by the first member to move to the second position;
A first sensor for detecting that the second member has reached the first position;
A second sensor for detecting that the second member has reached the second position;
The lighting device according to claim 1, wherein The second rotation mechanism is
In conjunction with the rotation of the lamp, a detected member provided to be detected by a sensor when the lamp rotates to reach the end position;
A transmission mechanism for transmitting a driving force of an actuator to the lamp to rotate the lamp;
Have
The transmission mechanism maintains linkage with the detected member even when the actuator is stopped when a torque of a specified value or more about the second axis is applied to the lamp. However, the lighting device according to claim 1, wherein the lamp is provided to be rotated about the second axis by the torque.

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