JPH0945483A - Light detective remote control type controlled equipment and light detective remote control type spot light using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately distribute a main body part to a light source acting as a target in a non-contact condition by executing only panning and tilting control even if a light receiving sensor block is mounted while being rotationally slipped. SOLUTION: A light source P0 is found out with a panning drive block 3 operated, and when the light source P0 is detected by a panning light receiving element block 21 and the like, a main body part is operated so as to be panned, and let the light source P0 be brought into a detection suspension area S at the center. Furthermore, panning is kept as is, let the light source P0 enter a panning detection area PE, and finally it goes out of the area PE. A position for the light source to enter the area PE and a position for him to go out of the area, are stored in a pan/tilt movement memory device 5. By this constitution, since the quantity of movement in a panning detection area is determined based on detection starting and ending positions stored in the device 5, the main body part can thereby be positioned at the center place of its movement. By this constitution, the main body part can accurately be distributed to the light source even if a sensor block is mounted while being rotationally slipped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical detection remote control type controlled device which automatically detects a light source as a target and controls an alignment position in which a main body unit follows the light source by pan and tilt operations. The present invention relates to an optical detection remote control remote control spotlight used.

[0002]

2. Description of the Related Art The inventors of the present application filed Japanese Patent Application No. 6-3173.
In No. 88, etc., we proposed an optical detection remote control type spotlight in which a transmitter that emits light is used and a light receiving sensor block is provided in the spotlight so that the transmitter can be automatically detected. This spotlight is shown in Figure 1.
As shown in FIG. 5, the optical lens 11 of the spotlight SP
The light receiving sensor block 2 including the five light receiving element blocks 21 to 25 is provided on the front surface of the main body 10 provided with, and the main body 10 is directed to the transmitter by automatically detecting the light emitted by the transmitter (not shown). The orientation can be controlled by following it.

Here, the light receiving sensor block 2 includes a pair of horizontally arranged light receiving element blocks 21 for pan so that a pan detection area PE in which the respective detection areas P1 and P2 are horizontally overlapped is formed. 22 and each detection area T
A pair of vertically aligned tilt light receiving element blocks 23 and 24 are provided so that a tilt detection area TE in which 1 and T2 are vertically overlapped is formed, and a stop detection area SE is provided at the center thereof. A drive stopping block 25 is provided so as to be formed. For this reason, in appearance, with the drive stopping block 25 as the center, a set of pan light receiving element blocks 21 and 22 and a set of tilt light receiving element blocks 23 and 24 are arranged in a concentric circle. It has been arranged. In addition, each of these light receiving element blocks 2
1 to 25 are provided with guide cylinders 21a to 25a projecting from the guide cylinders 21a to 25a to limit the light incident on the respective light receiving elements, so that the detection areas defined by the respective light receiving element blocks 21 to 25 have predetermined shapes and dimensions. I have to. The detection area formed by these light receiving element blocks 21 to 25 includes a pan detection area PE, a tilt detection area TE, and a stop detection area S, as shown in FIG.

By the way, such a spotlight SP
Is a pan drive block (not shown) for horizontally moving the main body 10 about the pan axis PJ, and a tilt axis T
A tilt drive block (not shown) for moving the main body unit 10 up and down about J is built in the main body unit 10, and the target oscillator is optically detected and the positioning control is performed as follows. It is supposed to do.

The control operation in this case will be described with reference to FIGS. 17 to 20. First, when the pan drive block is operated and the optical transmitter is detected in the stop detection area S, the optical transmitter is present. The main body unit 10 is panned in the direction. This pan operation causes the optical transmitter to move within the stop detection area S
Since it enters the pan detection area PE formed by the pair of pan light receiving element blocks 21 and 22 and finally exits from this detection area PE, the optical transmitter detects the stop while moving the main body 10 horizontally. The detection start position A that has entered the pan detection area PE in the area S and the detection end position B that has exited from the pan detection area are stored (see FIGS. 17 and 18).

In this way, the movement amount of the pan detection area is calculated from the detection start position A and the detection end position B of the pan detection area PE in the stop detection area S, the midpoint position C is calculated, and the pan drive block is calculated. The other side,
Is positioned at the midpoint position C. As a result, the main body unit 10 is placed facing the intermediate position C of the pan detection area PE.

Then, the tilt drive block is operated to move the main body 10 up and down to detect the oscillator while the panning operation of the main body 10 is fixed. When one of the pair of light receiving element blocks 23 and 24 for tilt detects the optical transmitter in accordance with the tilt operation, the tilt drive block is further
The main body 10 is moved in the direction of the optical transmitter. As a result, the transmitter enters the tilt detection area TE formed by the pair of tilt light receiving element blocks 23 and 24 in the stop detection area S, and finally exits from the tilt detection area TE. Detection start position D where the optical transmitter enters the tilt detection area TE while tilting 10
And the detection end position E that has come out of the tilt detection area TE are stored.

The detection start position D stored in this way
Then, the tilt movement amount is calculated from the detection end position E and the midpoint position F is calculated, and the tilt drive block is operated in the opposite direction to orient the main body 10 at the midpoint position F. As a result, the drive stop light receiving block 25 of the light receiving sensor block 2 is placed at the center of the stop detection area S from the principle of elementary geometry, and the transmitter is positioned on the optical axis of the drive stop light receiving block 25. Then, the front surface of the main body portion 10 is oriented to the light generator. Steps 201 to 21 in FIG.
3 is a flowchart showing the basic procedure of the position control method in this case.

[0009]

However, in order to correctly orient the optical axis of the drive stopping light receiving block 25 of the light receiving sensor block 2 to the optical transmitter by performing the position control in the above-described procedure, Each of the horizontal axis and the vertical axis of the sensor block 2 matches the pan axis PJ and the tilt axis TJ of the main body unit 10 and there is no angle deviation, and it is not possible to change the horizontal axis and the vertical axis as shown in FIG. As described above, when an angle deviation θ occurs between these axes, the above position control method is not sufficient, and a control method for correcting such an angle deviation θ has been desired.

The present invention was developed and proposed in order to meet such a demand, and each of the horizontal axis and the vertical axis of the light receiving sensor block is rotationally displaced with respect to the pan axis and the tilt axis of the main body. It is an object of the present invention to provide an optical detection / remote control type controlled device capable of performing more accurate positioning even if the optical detection occurs on the way, and an optical detection / remote control spotlight using the same.

Therefore, a first object of the present invention is to use a light-detecting remote-controlled controlled device capable of detecting a light source with respect to a light source as a target and orienting the main body portion in a non-contact manner with high precision. To provide. The second purpose is to use an optical detection remote control type object that can control the alignment position with high accuracy even if the horizontal and vertical axes of the light receiving sensor block are misaligned with respect to the pan axis and tilt axis of the main body. To provide a control device.

Still another object is to provide a light-detecting remote control spotlight which is used in combination with a light-emitting transmitter and can perform orientation control with respect to the light-transmitting device by performing light detection in the same manner as described above. To do.

[0013]

The present invention proposed to achieve the above object has the following constitution. That is, according to the optical detection remote control controlled device of the present invention proposed in claim 1, a pair of horizontally-opposed pan detection areas are formed on the front surface of the main body so that the pan detection areas are horizontally overlapped. The light receiving element block for pan and the tilt detection areas which are vertically overlapped with each other are arranged to face each other.
A drive stop arranged in the center so that a stop detection area is formed in a portion where the pan detection area and the tilt detection area formed by the pair of light receiving element blocks for tilt and the above-described both light receiving element blocks overlap each other. And a light receiving sensor block formed by combining with a light receiving block for use as a pan / tilt drive control means, while detecting the light source by the pair of pan light receiving element blocks.
A pan drive block for panning the main body, and a tilt drive block for tilting the main body while detecting the light source by the pair of light receiving element blocks for tilt are provided. As the amount detection storage means, the pan movement amount of the main body portion (hereinafter, referred to as "pan detection" from the detection start position where the light source enters the pan detection area to the detection end position where the light source exits the pan detection area in the stop detection area. "Amount of area movement"), the amount of tilt movement of the main body from the detection start position where the light source enters the tilt detection area to the detection end position where the light source exits the tilt detection area (hereinafter, "tilt movement amount"). (Hereinafter referred to as "detection area movement amount"), the pan detection area movement amount, and the tilt detection area movement amount midpoint position. After driving the pan drive block or the tilt drive block to move the main body to the midpoint position of any one of the detection area movement amounts, the other detection area movement amount The position can be controlled to the midpoint position.

Further, the optical detection remote control type controlled device proposed in claim 2 is characterized by the control procedure of the positioning control method, and the pan drive block is operated to pan the main body. After detecting the movement amount of the pan detection area, the main body unit is panned to the midpoint position of the movement amount of the pan detection area, and at that position, the tilt drive block is operated to tilt the main body unit to perform tilting. After detecting the amount of movement of the detection area, tilt the main unit to the midpoint position of the amount of movement of the tilt detection area, and at that position, activate the pan drive block to pan the main unit to move the pan detection area. Is detected, the main body is panned to the midpoint position of the amount of movement of the pan detection area, and the front surface of the main body is oriented to the light source.

In the optical detection remote control controlled device proposed in claim 3, the pan / tilt movement amount detecting and storing means comprises a potentiometer and a rotary encoder.
As a result, the movement amount of panning and tilting the main body can be easily stored and accurately reproduced during position control. Further, claims 4 and 5 propose an optical detection remote control type spotlight in which claims 1 and 2 are made more concrete, and claim 4 claims that the horizontal and vertical axes of the light receiving sensor block are the main body portion. Proposes an optical detection remote control type spotlight that can control the alignment position with high accuracy even if an angle deviation occurs with respect to the pan axis and the tilt axis. We are proposing an optical detection remote control type spotlight that is characterized by possible control procedures.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. The optical detection remote control type controlled device used in the present invention includes Japanese Patent Application No. 6-317388 and Japanese Patent Application No. 7-317388.
The optical detection controlled device proposed in -158941 can be used.

FIG. 2 shows an optical detection remote control controlled device applied to a spotlight, in which a main body 10 provided with an optical lens 11 is mounted at an appropriate place such as a ceiling surface, and the front surface thereof is provided. Five light receiving element blocks 21 to 2
A light receiving sensor block 2 composed of 5 is provided to automatically detect the light emitted by the transmitter P and follow the main body 10 toward the transmitter P to control the orientation.

The light receiving sensor block 2 is provided with a set of pan light receiving element blocks 21 and 22 and a set of tilt light receiving element blocks 23 and 24 on a concentric circle centering on the drive stopping block 25. Are arranged in a cross, and each of these light receiving element blocks 21 to 2 is arranged.
5, guide cylinders 21a to 25a are provided so as to project,
Thus, the light incident on each light receiving element is limited, and the detection area defined by each light receiving element block 21 to 25 has a predetermined shape and size. Here, one pair of pan light receiving element blocks 21 and 22 horizontally opposed to each other and the respective detection areas P1 and P2 are formed so that a pan detection area PE is formed in a portion where the detection areas P1 and P2 are horizontally overlapped. The tilt detection area T is provided in a portion where the areas T1 and T2 vertically overlap.
In order to form E, a pair of vertically arranged tilt light receiving element blocks 23 and 24 are provided, and a drive stop block is formed so that a stop detection area S is formed at the center thereof. 25 are provided.

FIG. 4 shows these light receiving element blocks 21 to 21.
The pan detection area PE, the tilt detection area TE, and the stop detection area S formed by 25 are shown. As shown in FIG. 1, such a spotlight SP has a motor 3a, and a pan drive block 3 for rotating the motor 3a to horizontally move the main body 10 about the pan axis PJ, A tilt drive block 4 for moving the main body 10 up and down about a tilt axis TJ is built in the main body 10, and the pan drive block 3 and the tilt drive block 4 are driven. Then, the pan and tilt movement amounts obtained by panning and tilting the main body unit 10 are stored in the pan / tilt movement amount detection storage means 5 as follows.
It is stored in a potentiometer 51 or a rotary encoder (not shown) attached to the output shaft of each motor 3a, 4a, and C
The signal is processed by the signal processing unit 6 composed of PU, and the positioning is controlled.

In such an optical detection controlled device of the present invention, the positioning control can be performed by the following procedure by orienting the oscillator P as a target.
The position control operation will be described with reference to FIGS. When the pan drive block 3 is operated to detect the light source Po, and one of the pair of pan light receiving element blocks 21 and 22 detects the light source Po, the pan drive block 3 is operated and the main body is moved in the direction of the light source Po. By panning part 10,
The light source Po enters the stop detection area S at the center (FIG. 5). If the pan operation is further continued in this state, the light source Po enters the pan detection area PE formed by the pair of pan light receiving elements 21 and 22 in the stop detection area S, and finally from the pan detection area PE. As it goes out (FIG. 6), the detection start position where the light source Po enters the pan detection area PE,
The detection end position exiting from the pan detection area PE is stored in the pan / tilt movement amount detection storage means 5.

In this way, since the pan detection area movement amount can be known from the detection start position and the detection end position stored in the pan / tilt movement amount detection storage means 5, the midpoint position thereof is obtained, and the pan drive block 3 is obtained. Are operated in the opposite direction to position the main body 10 at its midpoint position. As a result, the main body 10 is placed at the midpoint position of the pan detection area PE overlapping the stop detection area S (FIG. 7).

Next, with the pan operation of the main body 10 fixed, the tilt drive block 4 is operated to move the main body 10 up and down to detect the light source Po. When one of the pair of light receiving element blocks 23 and 24 for tilt detects the light source Po in accordance with this tilt operation, the tilt drive block 4 further moves the main body 10 in the direction of the light source Po. As a result, the light source Po enters the overlapping portion of the stop detection area S and the tilt detection area TE formed by the pair of tilt light receiving elements 23 and 24 (FIG. 8), and finally the stop detection area S. It goes out from the overlapping portion of the tilt detection area TE and the tilt detection area TE in this case.
Further overlaps with the pan detection area PE, the tilt detection of the light source Po enters the tilt detection area TE and the detection end position exiting from the tilt detection area TE while tilting the main body 10. It is stored in the pan / tilt movement amount detection storage means 5 (FIG. 9).

Since the tilt movement amount can be known from the detection start position and the detection end position stored in this way, the signal processing unit 6 obtains the midpoint position, and this time the tilt drive block 4 is operated in the reverse direction. Then, the main body portion 10 is tilted and positioned so that the light source Po comes to the midpoint position (FIG. 10). As a result, the main body unit 10 has the tilt detection area TE and the pan detection area PE in the stop detection area S.
In the overlapping area SO, and the tilt detection area TE
Of the light source Po at the midpoint position of the vertical line drawn from the upper end to the lower end of the
Will be positioned so that

Then, the pan drive block 3 is operated at this midpoint position to pan the main body 10 and the light source P
Detect o again. In this second pan operation, the light source P
o detects the boundary point of the pan detection area PE. That is, the pan drive block 4 is operated to horizontally move the main body 10 to the right and left to detect the boundary position where the light source Po is emitted from the pan detection area PE, and the pan / tilt movement amount detection storage means 5 is used. It is stored (FIGS. 11 and 12). In this way, the signal processing unit 6 obtains the midpoint position from the detected two boundary positions, further pans the pan drive block 3, and positions it at the midpoint position (FIG. 13). .

According to the present invention, the stop detection area S, the tilt detection area TE, and the pan detection area PE are formed by such a method.
After the light source Po is positioned so as to come to the midpoint position of the tilt detection area TE extending in the tilt axis TJ direction in the overlapping area SO, the stop detection area S, the tilt detection area TE, Pan detection area P
In the area SO where E overlaps, the main body portion 10 is positioned so that the light source Po comes to the midpoint position of the pan detection area PE spreading in the pan axis PJ direction, so the light receiving sensor block 2 is shown in FIG. As described above, the light source Po is positioned so as to come near the center of the area SO where the stop detection area SE, the tilt detection area TE, and the pan detection area PE overlap, even if the rotational deviation θ occurs.

Steps 100 to 114 in FIG. 14 are flow charts showing the above control operation. According to the above method, the main body unit 10 is first panned and then tilted, so that the pan detection area PE in the stop detection area S and the tilt detection area TE in the overlapping area SO in the tilt axis TJ direction. Position to the point position,
Then, by performing the second pan operation from that position, the pan axis PJ within the area SO where the pan detection area PE and the tilt detection area TE overlap in the stop detection area S.
Although the example of positioning at the midpoint position of the direction is shown, the tilt operation is first performed, and then the pan operation is performed to perform the pan operation in the stop detection area S and in the area SO where the pan detection area PE and the tilt detection area TE overlap. After positioning at the midpoint position in the pan axis PJ direction, the pan detection area PE and the tilt detection area TE in the stop detection area S by the second tilt operation.
It is needless to say that the positioning may be performed at the midpoint position in the tilt axis TJ direction within the overlapping area SO of the above, which is included in the technical scope of the present invention.

[0027]

According to the first aspect of the present invention, one set of pan light receiving element blocks in the horizontal direction, one set of tilt light receiving element blocks in the vertical direction, and the center of these are provided on the front surface of the main body. In the optical detection remote control type controlled device having the pan / tilt control function, which is provided with the light receiving sensor block configured by providing the drive stopping block, even if the light receiving sensor block is attached with a rotational displacement, By simply performing pan and tilt control without adding the sensor means described above, it is possible to accurately orient the main body portion by the target light source in a non-contact state.

According to the present invention as set forth in claim 2, there is provided a device provided on the front surface of the main body without requiring complicated position calculation.
Performing pan and tilt operations sequentially while monitoring the position of the light source with a set of light receiving element blocks for pan, a pair of light receiving element blocks for tilt, and a light receiving sensor block configured by providing a drive stop block at the center of these blocks. By this, the orientation can be controlled with high accuracy while approaching the center position of the stop detection area.

According to the third aspect of the present invention, the potentiometer and the rotary encoder constitute the pan / tilt movement amount detecting and storing means. Therefore, the structure is simple and the position control is reproducible at low cost. Optical detection controlled equipment can be provided. According to the fourth aspect of the present invention, even if the light receiving sensor block is rotated due to aged deterioration or careless mounting, the orientation can be accurately controlled without contacting the main body with the optical transmitter.

According to the present invention as set forth in claim 5, the device provided on the front surface of the main body portion does not require complicated position calculation.
Pan and tilt operations are performed sequentially while monitoring the position of the transmitter with a pair of pan light receiving element blocks, one set of tilt light receiving element blocks, and a light receiving sensor block configured by providing a drive stop block at the center of these blocks. As a result, the orientation can be controlled with high accuracy while approaching the center position of the stop detection area.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration of an optical detection remote control controlled device of the present invention.

FIG. 2 is an external configuration diagram of an optical detection remote control system including the optical detection remote control controlled device of the present invention.

FIG. 3 is a schematic configuration diagram showing an optical detection remote control controlled device of the present invention.

FIG. 4 is a schematic configuration diagram showing a detection area formed by each light receiving element block of the optical detection remote control controlled device of the present invention.

FIG. 5 is a diagram showing a positioning control procedure by optical detection (a state in which a light source enters a pan detection area within a stop detection area).

FIG. 6 is a diagram showing a positioning control procedure by optical detection (a state in which a light source goes out of a pan detection area within a stop detection area).

FIG. 7 is a diagram showing a positioning control procedure by optical detection (showing a state in which the light source has reached the midpoint position of the pan detection area within the stop detection area).

FIG. 8 is a diagram showing a positioning control procedure by optical detection (showing a state where the light source enters the tilt detection area within the stop detection area).

FIG. 9 is a diagram showing a positioning control procedure by optical detection (a state in which the light source is out of the tilt detection area in the stop detection area).

FIG. 10 is a diagram showing a positioning control procedure by optical detection (showing a state in which the light source has reached the midpoint position of the tilt detection area within the stop detection area).

FIG. 11 is a diagram showing a positioning control procedure by optical detection (showing a state where the light source has reached one boundary point of the pan detection area within the stop detection area by the second pan operation).

FIG. 12 is a diagram showing a positioning control procedure by optical detection (showing a state where the light source has reached the other boundary point of the pan detection area within the stop detection area by the second pan operation).

FIG. 13 is a diagram showing a positioning control procedure by optical detection (showing a state in which the light source has reached the midpoint position of the pan detection area within the stop detection area).

FIG. 14 is a flowchart showing a positioning control procedure by optical detection.

FIG. 15 is a diagram showing an appearance of an optical detection remote control controlled device.

FIG. 16 is an explanatory diagram of a rotational deviation that occurs between the horizontal and vertical axes of the light receiving sensor block and the pan axis and tilt axis of the main body.

FIG. 17 is a diagram showing a positioning control procedure by optical detection.

FIG. 18 is a diagram showing a positioning control procedure by optical detection.

FIG. 19 is a diagram showing a positioning control procedure by optical detection.

FIG. 20 is a diagram showing a positioning control procedure by optical detection.

FIG. 21 is a flowchart showing a positioning control procedure by optical detection proposed in the prior application.

[Explanation of symbols]

 Po ... Light source P ... Transmitter SP ... Spotlight PJ ... Pan axis TJ ... Tilt axis PE ... Pan detection area TE ... Tilt detection area S ... Stop detection area SO ... Overlapping part of three detection areas 1 ... Optical detection remote control type controlled device 10 ... Main body 11 ... Optical lens 2 ... Light receiving sensor block 3 ... Pan drive block 4・ ・ ・ Tilt drive block 5 ・ ・ ・ Pan / tilt movement amount detection storage unit 51 ・ ・ ・ Potentiometer 6 ・ ・ ・ Signal processing unit 21,22 ・ ・ ・ Pan light receiving element block 23,24 ・ ・ ・ Tilt light receiving Element block 25 ・ ・ ・ Light receiving element block for driving stop

Claims (4)

[Claims] 1. An optical detection remote control controlled device for automatically detecting a target light source, and panning and tilting the main body part with respect to the light source to orient the front surface of the main body part to the light source. On the front of the pan, a pair of horizontally aligned pan photodetector blocks is formed so that a pan detection area that overlaps horizontally is formed, and a pair of pan detection areas that are overlapped vertically are formed so that the pan detection area is formed vertically. Arranged in the center so that a stop detection area is formed in a portion where the pan detection area and the tilt detection area formed by both the above-described one set of tilt light receiving element blocks and the above-described light receiving element blocks overlap. A light receiving sensor block formed by combining the above-mentioned light receiving block for driving stop is provided, and the light source is detected by the one set of the light receiving element block for pan as the pan / tilt drive control means. In addition, a pan drive block for panning the main body portion and a tilt drive block for tilting the main body portion while detecting the light source by the pair of tilt light receiving element blocks are provided. As the tilt movement amount detection and storage means, the pan movement amount of the main body portion (hereinafter, referred to as “the following: from the detection start position where the light source enters the pan detection area to the detection end position where the light source enters the stop detection area). "Pan detection area movement amount"), the tilt movement amount of the main body unit (hereinafter, referred to as "pan movement amount") from the detection start position where the light source enters the tilt detection area to the detection end position where the light source exits the tilt detection area. "Tilt detection area movement amount"), the pan detection area movement amount, and the tilt detection area movement amount midpoint position. Means for driving the pan drive block or the tilt drive block to move the main body part to the midpoint position of the pan detection area movement amount or the tilt detection area movement amount. Optical detection remote controlled device that is moved to the other midpoint position after being moved to. 2. The optical detection remote-controlled device according to claim 1, wherein the pan drive block is operated to pan the main body to detect the pan detection area movement amount, and then the main body is pan-detected. Pan the camera to the midpoint of the area movement amount, then operate the tilt drive block at that position to tilt the main unit to detect the tilt detection area movement amount, and then move the main unit to the tilt detection area. Tilt to the middle point of the amount, and at that position, operate the pan drive block to pan the main unit to detect the pan detection area movement amount, and then move the main unit to the pan detection area movement amount. An optical detection remote control controlled device having a structure in which the front surface of the main body is oriented to the light source by panning to a point position. 3. The pan / tilt movement amount detection storage means,
2. The optical detection remote control controlled device according to claim 1, wherein the controlled device comprises a potentiometer and a rotary encoder. 4. An optical detection remote control spotlight equipped with a pan / tilt positioning function for automatically detecting an optical transmitter and orienting a spotlight provided on the main body with respect to the optical transmitter for position control. Then, on the front surface of the main body where the spotlight is provided, a pair of horizontally arranged light receiving element blocks for pan, a pair of vertically arranged light receiving element blocks for tilt, and these blocks. So as to be arranged on a concentric circle, a drive stopping block arranged at the center of the circle is provided as a light receiving sensor block, and while detecting the optical transmitter by the set of pan light receiving element blocks, A pan drive block for panning the main body, and a tilt drive block for tilting the main body while detecting an optical transmitter by the pair of light receiving element blocks for tilt are provided. In the stop detection area, the pan movement amount of the pan drive block (hereinafter, referred to as “pan detection area”) from the detection start position where the optical generator enters the pan detection area to the detection end position where the photodetector exits the pan detection area. "Movement amount"), the tilt movement amount of the tilt drive block (hereinafter, referred to as "movement amount") from the detection start position where the optical transmitter enters the tilt detection area to the detection end position where the optical transmitter exits the tilt detection area. "Tilt detection area movement amount"), and pan / tilt movement amount detection storage means for storing each of the pan detection area movement amount and the midpoint position of the tilt detection area movement amount. , Drive one of the tilt drive blocks to move the main unit to the midpoint position of the pan detection area movement amount or the tilt detection area movement. An optical detection remote control spotlight that is moved to one of the midpoints of the momentum and then moved to the other midpoint.