JPH08124406A - Lighting system - Google Patents

Abstract

PURPOSE: To automatically change a light radiating direction with an illuminating lamp tracking an illuminated object. CONSTITUTION: An infrared signal is transmitted from a transmitter 5 for a microphone 1. A signal is received by the phototransistor of a spot lamp 2 and the position of the microphone 1 is detected by a control part 4 according to a level difference received by the phototransistor. When the position of the microphone 1 is detected, a first servo motor 18 and a second servo motor 19 are operated. The spot lamp 2 is rotated about the vertical shaft and the horizontal shaft of the spot lamp 2 to change a light radiating direction. The light of the spot lamp 2 is applied to the microphone 1. When the microphone 1 is further moved, the spot lamp 2 tracks the microphone 1 to radiate light to the microphone 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor lighting device which constantly irradiates a moving object with light.

[0002]

2. Description of the Related Art In recent years, in parties, weddings, karaoke rooms, and the like, color lighting, spot lamps, and the like have been widely used to create the atmosphere of the place. Among them, an illuminating lamp such as a spot lamp is particularly used to illuminate a specific person or a target object by irradiating light, and plays an important role of enlivening the atmosphere.

When such a spot lamp is used, since a person or an object to be moved moves, a lighting staff manually changes the irradiation direction of the light of the spot lamp or the direction is changed by remote control such as remote control. The light is variably changed so that the person or the subject is always illuminated with light.

[0004]

However, in a venue such as a party or a wedding, a spot lamp is installed at a high position by a ceiling or a stand in order to constantly illuminate a person or an object. In most cases, the inside of the venue is large and the range of movement of people and objects is wide, so the operation of changing spot lamps was troublesome. Therefore, a skilled lighting technician who operates the spot lamps is required, and particularly when the manual operation is performed, the number of the spot lamps is required. Further, even in the case of remote control, at least one skilled lighting staff member is required, resulting in labor and high labor costs.

Further, in a karaoke room or the like, since the room is small, the irradiation direction of the light of the spot lamp is often fixed, and when the person or the object moves, it is deviated from the irradiation of the light of the spot lamp. . Therefore, there is a problem that a person cannot move or move from a spot irradiation position of the light of the spot lamp, so that the effect of the effect is reduced to half and the excitement is lacking.

In view of the above, the present invention has an object of providing an illuminating device in which an illuminating lamp tracks an object and automatically changes the irradiation direction of light.

[0007]

The problem solving means according to the present invention is, as shown in FIG. 1, a movable object 1 which emits a signal.
An illuminating lamp 2 for irradiating light to the body, a direction switching section 3 for changing the irradiation direction of the light of the illuminating lamp 2, and a control section 4 for controlling the direction switching section 3 based on a signal from the object 1. The direction switching section 3 is provided with a lateral swinging means 18 for rotating the illuminating lamp 2 around the vertical axis 7 and a vertical swinging means 19 for rotating the illuminating lamp 2 around the horizontal axis 8, and the control section. Reference numeral 4 denotes a position detection unit 30 that detects the position of the target object 1 based on the output level of the signal from the target object 1, and the irradiation direction of the light of the illumination lamp 2 based on the detection result of the position detection unit 30. Direction changing means 31 for operating the direction switching unit 3 so as to face the object 1.
It has been marked with and.

[0008]

In the above means for solving problems, when a signal is transmitted from the object 1, the illumination lamp 2 receives the signal. At this time, the position detecting means 30 of the control unit 4 detects the position of the object 1 based on the output level of this signal, and the data of the position is output to the direction changing means 31. And
Based on this data, the horizontal swinging means 18 and the vertical swinging means 19 are operated, and the illumination lamp 2 rotates around the vertical axis 7 and the horizontal axis 8.
By rotating around, the irradiation direction of the light of the illumination lamp 2 is changed,
The object 1 is irradiated with light.

When the object 1 is moved, the irradiation direction of the light of the illuminating lamp 2 is changed by a signal from the object 1, and the illuminating lamp 2 tracks the object 1 and the object 1 is moved. Irradiate with light.

[0010]

【Example】

(First Embodiment) The lighting device of the first embodiment of the present invention is used in a venue such as a party or a wedding, and as shown in FIG. 1, a movable object 1 that emits a light is illuminated. An illumination lamp 2 for irradiating light, a direction switching section 3 for changing the irradiation direction of the light of the illumination lamp 2, and a control section 4 for controlling the direction switching section 3 based on a signal from the object 1. There is.

The object 1 is a wireless microphone (hereinafter referred to as a microphone), and the microphone 1 has a built-in transmitter 5 including a light emitting diode (not shown) for transmitting an infrared signal. Since this microphone 1 is often used while being carried by a person in the hall, the light emitting diode of the transmitter 5 is arranged in the microphone 1 so as to transmit an infrared signal in all directions. ing.
Then, when the microphone 1 is turned on, an infrared signal is transmitted from the transmitter 5, and this infrared signal is continuously transmitted until the microphone 1 is turned off. The microphone 1 has a well-known structure, and detailed description thereof will be omitted.

As shown in FIGS. 2 and 3, the illuminating lamp 2 is an embedded type spot lamp which is installed on the ceiling A in the hall, and a vertical axis 7 is attached to a bracket 6 fitted in the ceiling A.
Further, the lamp body 9 is rotatably supported via the horizontal shaft 8, a light bulb 10 arranged in the lamp body 9, and a lens 11 that collects the light of the light bulb 10 to reach a distant place. The spot lamp 2 is installed on the ceiling A at substantially the center of the venue, so that the person holding the microphone 1 can irradiate the light wherever he or she moves in the venue.

The bracket 6 is formed in a substantially rectangular box shape, is fixed so that the lower surface thereof slightly projects from the ceiling A, and the lamp body 9 is arranged in the opening 6a of the lower surface.
The vertical axis 7 is the bearing 1 at the center of the upper surface of the bracket 6.
It is rotatably supported via 2, and a support 13 formed in a U shape is fixed to the tip of the vertical axis 7. A bevel gear 14 is fixed near the center of the vertical axis 7, and the bevel gear 14 is rotated by a lateral swinging device to be described later, so that the support 13 is rotated in the direction of arrow a together with the vertical axis 7. .

The lamp body 9 is a hemispherical reflector, and the lens 11 side is arranged so as to slightly project from the opening 6a of the bracket 6, and a socket 15 is provided at the center of the lamp body 9. Then, the light bulb 10 is screwed and fitted into the socket 15. Lateral shafts 8 project from the left and right sides of the lamp body 9, and the lateral shafts 8 are rotatably supported by penetrating the perforations 13a of the support body 13. And
A bevel gear 16 is fixed to the tip of the horizontal shaft 8 on one side, and the bevel gear 16 is rotated by a vertical swinging device, which will be described later, so that the lamp body 9 rotates in the direction of the arrow b together with the horizontal shaft 8. .

The lens 11 is removably attached to the lamp body 9 via the rim 17, and the rim 17 is screwed into the lamp body 9 to be fitted therein.
And the lamp body 9 are sandwiched between. And light bulb 1
AC power is supplied to 0 through the socket 15, and the light bulb 10 emits light, whereby light is emitted to the microphone 1 through the lens 11. The light leaking to the rear of the light bulb 10 is reflected inside the lamp body 9 and radiated through the lens 11, so that the rim 17 and the lens 1 are illuminated.
By removing 1, the bulb 10 can be removed from the socket 15 and replaced.

The direction switching section 3 is, as shown in FIG.
From the first servo motor 18, which is a lateral swinging means for rotating the spot lamp 2 360 degrees about the vertical axis, and the second servo motor 19, which is a vertical swinging means for rotating the spot lamp 2 180 degrees around the horizontal axis. It is configured. The first servomotor 18 is a motor capable of rotating in the forward and reverse directions, is fixed to the upper surface of the bracket 6, and the pinion gear 21 at the tip of the motor shaft 20 is meshed with the bevel gear 14 on the vertical axis 7. The driving force of the first servomotor 18 is the motor shaft 20,
It is transmitted to the vertical axis 7 via the pinion gear 21 and the bevel gear 14, and the vertical axis 7 rotates.

The second servomotor 19 is a motor capable of rotating in the forward and reverse directions, is fixed to the side of the support 13, and the pinion gear 23 at the tip of the motor shaft 22 is a bevel gear 16 of the horizontal shaft 9.
Is meshed with. The driving force of the second servomotor 19 is the motor shaft 22, the pinion gear 23, and the bevel gear 16
Is transmitted to the horizontal shaft 9 via the, and the horizontal shaft 9 rotates.

A receiver 24 for receiving an infrared signal from the transmitter 5 is provided on the lower surface of the bracket 6. The receiver 24 includes 25 phototransistors J1 to J25 which are light receiving elements for receiving infrared signals.
And a signal detection unit 25 that outputs an infrared signal received by the phototransistors J1 to J25 to the control unit 4, and the phototransistors J1 to J25 include the bracket 6
It is arranged in a hemispherical filter 26 protruding from the lower surface. This filter 26 includes phototransistors J1 to J1.
It prevents J25 from being exposed to the outside, and blocks disturbance light other than the infrared signal to some extent, thereby preventing malfunction of the phototransistors J1 to J25.

The phototransistors J1 to J25 are
As shown in FIGS. 4 to 6, five rows are arranged in front, rear, left and right.
Then, one phototransistor J1 is attached to the central portion of the phototransistor J1 with its light-receiving surface facing vertically downward.
5, J10 to J25 each have an angle of θ _{1 in the} left-right direction, and phototransistors J6 to J25 have an angle of θ _{2 in the} front-rear direction, respectively, and the tip of each phototransistor J1 to J25 has a filter 26. It is attached along the spherical surface of. The mounting angles θ ₁ and θ ₂ of the phototransistors J1 to J25 are stored in advance in the control unit 4 described later as data, and the data are J1 (0, 0) and J2 (+ 2θ ₁ , 0). , J3 (+
_{θ 1, 0), J4 (} -θ 1, 0), J5 (-2θ 1,
0), J6 (0, + 2θ ₂ ), J7 (0, + θ ₂ ), J
8 (0, −θ ₂ ), J9 (0, −2θ ₂ ), J10 (+
2θ ₁ , + 2θ ₂ ), J11 (+ θ ₁ , + 2θ ₂ ), J
12 (+ 2θ ₁ , + θ ₂ ), J13 (+ θ ₁ , +)
? ₂ ), J14 (-? ₁ , +2? ₂ ), J15 (-2?
₁ , + 2θ ₂ ), J16 (−θ ₁ , + θ ₂ ), J17
(-2θ ₁ , + θ ₂ ), J18 (+ 2θ ₁ , -θ ₂ ),
_{J19 (+ θ 1, -θ 2} ), J20 (+ 2θ 1, -2θ
₂ ), J21 (+ θ ₁ , -2θ ₂ ), J22 (-θ ₁ ,
-? ₂ ), J23 (-2? ₁ ,-? ₂ ), J24 (-?
_The coordinate data is stored like ₁ , ₂ , -2 [theta] ₂ ), J25 (-2 [theta] ₁ , -2 [theta] ₂ ).

As shown in FIG. 7, the signal detection section 25 is a receiving circuit in which phototransistors J1 to J25 are connected in series to a DC power supply 27 via a resistor R1, which is connected to each phototransistor J1 to J25. It is provided for each. In the receiving circuit 25, when the phototransistors J1 to J25 receive the infrared signal from the transmitter 5, the current from the power source 27 flows, and the divided voltage value between the phototransistors J1 to J25 and the resistor R1 is sent to the control unit 4. Is entered. That is, each phototransistor J1 to J25
Then, the reception level becomes in accordance with the output level of the infrared signal from the transmitter 5, an output voltage proportional to this reception level is obtained, and this output voltage value is input to the control unit 4. For example, as shown in FIG. 8, phototransistors J1 to J
If the reception level of 25 is zero, the output voltage V becomes zero, and as the reception level becomes higher, the phototransistors J1 to J25 enter the amplification region and become low impedance, so that the output voltage V increases. It should be noted that since the phototransistors J1 to J25 enter the saturation region at the maximum reception level, the phototransistors J1 to J25 are prevented from exceeding the maximum output voltage Vh.

The control unit 4 includes a RAM, a ROM and a C.
A position detecting means 30 for detecting the position of the microphone 1 based on a difference in the output level of the infrared signal from the transmitter 5 and a position detecting means 30.
Direction changing means 31 for operating the first servomotor 18 and the second servomotor 19 so that the irradiation direction of the light of the spot line 2 is directed to the microphone 1 based on the detection result of
And have been given. The ROM stores data on the mounting angles θ ₁ and θ ₂ of the phototransistors J1 to J25 as described above.

The position detecting means 30 compares the output voltages of the phototransistors J1 to J25 from the receiving circuit 25 and detects the phototransistors J1 to J25 that output the maximum output voltage Vh. It is determined that the microphone 1 is in the direction in which J1 to J25 are facing, and the data of the mounting angles θ ₁ and θ ₂ of the phototransistors J1 to J25 of the ROM are output to the direction varying means 31. That is, since the infrared signal from the transmitter 5 is transmitted from the microphone 1 in all directions, the output level of the infrared signal reflected by a wall or the like is low and reaches the phototransistors J1 to J25 linearly. The output level of the infrared signal is high. Therefore, it is determined that the microphone 1 is in the direction in which the phototransistors J1 to J25 that output the maximum output voltage Vh face.

The direction varying means 31 is the position detecting means 3
The irradiation direction of the light of the spot lamp 2 is changed according to the output data from 0. In the direction in which the phototransistors J1 to J25 that output the maximum output voltage Vh face,
Turn the spot lamp 2. That is, the direction changing means 31 arithmetically processes the detected coordinate data of the phototransistor to determine the operation amounts of the first servo motor 18 and the second servo motor 19, and the first servo motor 18 and the second servo motor 19 are determined. In response, a control signal is output to operate each servomotor 18, 19 by the required amount.

In the above structure, when a person holding the microphone 1 is in front of the spot lamp 2 and the switch of the microphone 1 is turned on in a venue such as a party or a wedding, an infrared signal is transmitted from the transmitter 5. Is transmitted, and the phototransistors J1 to J25 of the spot lamp 2 receive the infrared signal.

Then, the phototransistors J1 to J25
A current from the power supply 27 flows through each of the receiving circuits 25, and their output voltage values are input to the control unit 4. At this time,
In the position detecting means 30, the phototransistors J1 to J2
The phototransistor that outputs the maximum output voltage Vh is detected from among the five. In this case, the phototransistor J6
Outputs the maximum output voltage Vh, it is determined that the microphone 1 is in the direction in which the phototransistor J6 is facing, and the data of the mounting angle (0, + 2θ ₂ ) of the phototransistor J6 is output to the direction changing means 31. It

Then, based on the data of the mounting angle (0, + 2θ ₂ ) of the phototransistor J6, the first servomotor 18 and the second servomotor 19 are operated, and the spot lamp 2 is moved to the vertical axis 7 and the horizontal axis 8. A person holding the microphone 1 is irradiated with the light of the spot lamp 2 by turning around the center of the phototransistor J6 in the same direction as the phototransistor J6.

Next, when the person holding the microphone 1 moves in the direction in which the phototransistor J13 is facing, the spot lamp 2 is changed by the control unit 4 in the direction in which the phototransistor J13 is facing, and the spot lamp 2 is moved. Irradiates the person with the microphone 1 with light.

As described above, the infrared signal transmitted from the transmitter 5 provided in the microphone 1 is received, the position of the microphone 1 is detected by the output level of the infrared signal, and the spot lamp 2 is automatically detected by the microphone. Since it can be directed in the direction of 1, there is no need for a person to manually operate the spot lamp or move the spot lamp by remote control as in the conventional case. Therefore, since the spot lamp can be operated without manpower, manpower can be reduced and labor cost can be reduced.

Further, the spot lamp 2 is rotated 360 degrees about the vertical axis 7 by the servomotors 18 and 19 capable of rotating in the forward and reverse directions.
180 degrees around the horizontal axis 8 so that a person having a moving microphone 1 is tracked and light is always emitted no matter where in the room the person having the microphone 1 moves. be able to. Therefore, the person holding the microphone 1 can move freely and cannot be removed from the lighting, so the atmosphere on the spot is not destroyed,
The directing effect is enhanced, which leads to the improvement of services.

(Second Embodiment) In the illumination device of the second embodiment, the receiver 24 is mounted on the surface of the rim 17 of the spot lamp 2, and the light receiving element of the receiver 24 is a semiconductor position detecting element as shown in FIG. (PSD) 40, each motor shaft 20 of the first servomotor 18 and the second servomotor 19,
A rotation angle detection sensor 41 including a rotary encoder for detecting the rotation angle of 22 is provided.

The PSD 40 is a light spot position detecting sensor to which a silicon photodiode is applied. As shown in FIG. 10, a P layer is formed on the front surface of the silicon chip, and an N layer is formed on the back surface.
It is composed of three I layers in the middle, and electrodes A1, A2, B1 and B2 are arranged on all sides. That is, when an infrared signal from the transmitter 5 is incident on the surface of the PSD 40 via the light receiving lens 42, the P layer (resistive layer)
Photocurrents i1, i2, j1, j2 flow through the
The current values of 1, i2, j1, j2 are taken out from the respective electrodes A1, A2, B1, B2 in inverse proportion to the incident position of the infrared signal and the distances to the electrodes A1, A2 and the electrodes B1, B2. The current values of the photocurrents i1, i2, j1, j2 extracted from the electrodes A1, A2, B1, B2 are the amplifier 4
3 and the signal processing circuit 44, the arithmetic processing is performed by the arithmetic circuit 45, and the incident angle of the infrared signal is detected by the change in the balance of each current value.

Then, the control unit 4 determines the position of the microphone 1 based on the incident angle of the detected infrared signal, and the motor shaft 20 of each of the servomotors 18 and 19 based on the output signal from the rotation angle detection sensor 41. , 22 rotation angle,
That is, it is determined which direction the spot lamp 2 is currently facing, and the servo motors 18,
Determine the operating amount of 19. After that, each servo motor 1
A control signal is output to 8 and 19, and each servo motor 18 and 19 is operated by a required amount to direct the light irradiation direction of the spot lamp 2 to the microphone 1.

As described above, by detecting the position of the microphone 1 by using the PSD 40, the spot lamp 2 tracks the person holding the microphone 1 and irradiates the light with the same effect as the first embodiment. Is obtained. The same components and functions as those of the first embodiment are designated by the same reference numerals.

(Third Embodiment) Further, in the illumination device in the third embodiment, as shown in FIGS. 11 and 12, the receiver 24 is arranged in the same direction as the vertical axis 7 and the horizontal axis 8 of the spot lamp 2. A pair of DC motors 50 and 51, rotatable double-sided reflection mirrors 52a and 52b that are mounted on the motor shafts 50a and 51a of the DC motors 50 and 51 and that reflect infrared signals from the transmitter 5, and the mirrors 52a and 52a, Phototransistors 53a and 53b that receive the infrared signals reflected by 52b, and rotation angle detection sensors 54a and 54b that include rotary encoders that detect the rotation angles of the motor shafts 50a and 51a of the DC motors 50 and 51, respectively. Has been done. The other structure is the same as that of the second embodiment.

That is, the infrared signals from the transmitter 5 are reflected by the rotating mirrors 52a and 52b, and the rotation angles of the DC motors 50 and 51 when the phototransistors 53a and 53b receive the reflected infrared signals. Is detected by the rotation angle detection sensors 54a and 54b. And
The detected rotation angles of the DC motors 50 and 51 are signal-processed by the signal processing circuit 44 shown in FIG. 11 and output to the control unit 4. Then, the control unit 4 controls each DC motor 5
The position of the microphone 1 is determined from the rotation angles of 0, 51, and the rotation angle of the DC motor 50 and the rotation angle detection sensor 41
Motor shaft 22 of the second servo motor 19 detected by
From the current rotation angle of the second servo motor 19,
And the rotation angle of the DC motor 51 and the rotation angle detection sensor 4
The motor shaft 2 of the first servomotor 18 detected by 1.
The operation amount of the first servomotor 18 is determined from the current rotation angle of 0, and the servomotors 18 and 19 are operated by the required amount to automatically direct the irradiation direction of the light of the spot lamp 2 to the microphone 1. Turn. Therefore, the same effect as the first embodiment can be obtained.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, although the object is the microphone 1 in the present embodiment, the transmitter 5 is attached to a movable table 60, a wagon, or the like as shown in FIG.
The object on the table 60 may be irradiated with light by mounting. Further, when the transmitter 5 is attached to a main character such as a person on the spot, the main character is always exposed to the light, so that the effect of production is further enhanced.

Although the position of the object 1 is detected by transmitting and receiving an infrared signal using the light emitting diode and the phototransistors J1 to J25, the signal is not limited to the infrared signal, and other signals such as a voice signal and a radio wave may be used. Good. Further, the position of the object 1 may be detected by using not only the light emitting diode and the phototransistor or the semiconductor position detecting element but also another optical semiconductor. Further, if a radio wave or the like is transmitted from the illumination lamp 2 like a radar and the position of the object 1 is detected by the reflection of the electric wave, the transmitter 5 on the object side becomes unnecessary, and the object to be detected is detected. The body 1 can be easily changed if necessary.

As for the illuminating lamp 2, the spot lamp of the type embedded in the ceiling A in the room has been described.
It can be applied to all types such as the stand type and the wall type, and the illumination lamp 2 is not limited to the spot lamp, and other illumination lamps such as color illumination can be used.

Further, the illumination lamp 2 was rotated around the vertical axis and the horizontal axis by the servo motor to change the light irradiation direction. However, a moving rail was provided on the ceiling A, and the illumination lamp 2 was used as the rail. By movably installing and combining the movement of the illuminating lamp 2 and the rotation about the axis, the illuminating lamp 2 can be moved to the vicinity of the object 1, and the light is always applied from the vicinity of the object 1. Therefore, there is no concern that light will not reach the object 1. Further, if a plurality of illumination lamps 70 are provided as shown in FIG. 14 so that the illumination lamps 70 heading for the position of the object 1 are turned on, only the on / off control of each illumination lamp 70 is required, and the motor etc. The device is not required, and the structure is simplified. Alternatively, if the illuminating lamp 2 is installed on the ceiling so as to be vertically movable, it is possible to irradiate the target object 1 with light from the side, and if the illuminating lamp 2 can be rotated 360 degrees around the horizontal axis, the light can be emitted over the entire circumference. Can be irradiated. Then, if the illumination lamp 2 is installed on the floor, light can be emitted from below the object 1.

Furthermore, although the servomotors 18 and 19 are used as the direction switching section of the illumination lamp 2, the present invention is not limited to this.
The direction of the illumination lamp 2 may be switched by a rack and a pinion using a pneumatic or electric cylinder or the like.
Further, the servomotors 18 and 19 are connected to the vertical axis 7 via a gear.
Although the horizontal shaft 8 is rotated, the servo motors 18 and 19 may be directly connected to the vertical shaft 7 and the horizontal shaft 8 without a gear.

Although the lighting device for a venue such as a party or a wedding has been described, the present invention can be applied to a lighting device used in any place such as a karaoke room, a concert venue, a theater or a home.

[0042]

As is apparent from the above description, according to the present invention, the signal transmitted from the object is received, the position of the object is detected by the output level of the signal, and the object is automatically illuminated. Since the irradiation direction of the light of the lamp can be changed to irradiate the object with the light, it is not necessary for a person to manually operate the illuminating lamp or to remotely move the illuminating lamp. Therefore, since it is possible to operate the illumination lamp without manpower, it is possible to reduce manpower by reducing manpower.

Further, since the illuminating lamp is rotated around the vertical axis and the horizontal axis by the horizontal swing means and the vertical swing means,
It is possible to track a moving target object and always irradiate the target object with light no matter where the target object moves. Therefore, the object can be freely moved, and the object cannot be removed from the illumination as in the conventional case. Therefore, there is an excellent effect that the atmosphere on the spot is not destroyed, the effect of production is enhanced, and the service is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a lighting device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of an illumination lamp.

FIG. 3 is an exploded perspective view of an illumination lamp

FIG. 4 is a front view of a phototransistor.

FIG. 5 is a side view of the phototransistor.

FIG. 6 is a bottom view of the phototransistor.

FIG. 7: Phototransistor receiver circuit diagram

FIG. 8 is a diagram showing a relationship between a reception level of a phototransistor and an output voltage.

FIG. 9 is a block diagram of a lighting device according to a second embodiment.

FIG. 10 is a configuration diagram of a semiconductor position detecting element.

FIG. 11 is a block diagram of an illumination device according to a third embodiment.

FIG. 12 is a schematic configuration diagram of a receiver.

FIG. 13 is a diagram showing another lighting device.

FIG. 14 is a diagram showing another illumination lamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microphone 2 Spot lamp 3 Direction switching section 4 Control section 5 Transmitter 7 Vertical axis 8 Horizontal axis 18 First servo motor 19 Second servo motor 30 Position detecting means 31 Direction changing means

Claims (1)

[Claims] 1. An illumination lamp that emits light to a movable object that emits a signal, a direction switching unit that changes the irradiation direction of the light of the illumination lamp, and the above-mentioned apparatus based on a signal from the object. A direction control section for controlling the direction switching section, wherein the direction switching section includes a lateral swinging means for rotating the illumination lamp around the vertical axis and a vertical swinging means for rotating the illumination lamp around the horizontal axis. The control unit is provided with position detection means for detecting the position of the object according to the output level of the signal from the object, and the light of the illumination lamp based on the detection result of the position detection means. An illumination device, comprising: direction changing means for operating the direction switching unit so that the irradiation direction is directed to the object.