JP5223500B2 - Lighting device - Google Patents

Description

  The present invention relates to an illumination device including a sensor.

  Conventionally, as this type of lighting device, a device is known in which a sensor is attached to an apparatus body of a fluorescent lamp, and the sensor portion is configured to protrude from a reflecting plate in a light irradiation direction (see Patent Document 1). ).

  In the above luminaire, the sensor is fixed, and the detection area cannot be adjusted. For this reason, when adjusting the detection area, it is necessary to attach a tape or the like to the sensor portion, which is not only troublesome but also difficult to adjust the detection area appropriately. There is also a problem that the sensor malfunctions due to light from a fluorescent lamp.

  On the other hand, a lighting fixture has been developed in which sensors having cylindrical main bodies at both ends of the fixture main body are rotatably attached to the attached portion, and the direction of the light receiving portion can be adjusted by the rotation. Patent Document 2).

According to this configuration, although the direction of the light receiving unit can be adjusted by the rotation, the direction of the detection direction can be set to a desired direction depending on the position where the lighting fixture is attached and the posture of the attached lighting fixture. Therefore, there remains a problem that proper lighting control cannot be performed.
JP 2001-291419 A JP 2005-150030 A

  The present invention has been made in view of the current state of the illumination device including the sensor as described above. The purpose of the present invention is to enable the detection area to be adjusted easily and appropriately, and the mounting position and the mounted illumination. It is an object of the present invention to provide an illuminating device in which the direction of the detection direction can be desired regardless of the posture of the device, thereby enabling appropriate illumination control. It is another object of the present invention to provide an illumination device that prevents a sensor from malfunctioning due to light from a light source.

An illuminating device according to the present invention is provided in an apparatus main body; a light source that is attached to the apparatus main body and emits light; a housing having an opening, and the housing so as to look outward from the opening. A pair of sensors having a light receiving portion having a predetermined detection range, attached to a position protruding from an end of the apparatus main body, and performing light output control of the light source; and provided in a housing of the pair of sensors, respectively. by pan and tilt of rotating relative to the apparatus main body housing of the sensor, and the angle adjusting assembly for a variable in a second plane not parallel to a desired direction outward from the opening of the sensor; comprises a is the desired direction outward in the one sensor and the other sensor is different directions by the rotation by the pirn, and the each of the sensors to the desired direction by the rotation of the tilt, the monitoring range of each sensor is heavy Characterized in that it is set so as not et.

  The light source refers to a fluorescent lamp, an LED, a light bulb, and the like. Sensors for performing light output control of the light source allow human sensors, illuminance sensors, and the like. The angle adjusting unit allows a panning mechanism and a tilt mechanism. Two planes that are not parallel to each other mean one plane and at least one plane that is not parallel to the plane. That is, it is only necessary that the angle adjustment unit can freely change the direction of the sensor in the three-dimensional space.

  In the illumination device according to the present invention, the light receiving unit of the sensor adjusts an effective detection range of the light receiving unit by positioning a part of the housing in the detection range of the light receiving unit.

  The detection range of the light receiving unit refers to a range that can be detected only by the light receiving unit when there is no housing or the like, and the effective detection range of the light receiving unit refers to a detection range that the sensor can actually detect.

  In the illumination device according to the present invention, the angle adjusting unit includes a shaft portion that connects the apparatus main body and the sensor, and the projecting dimension of the sensor from the end of the apparatus main body is variable.

  In the illumination device according to the present invention, the sensors are respectively disposed at both ends of the device main body.

  In the illumination device according to the present invention, the illumination device according to the present invention includes a reflector that is provided on the device main body and is inclined with respect to the back surface of the device main body from one side surface toward the other side surface so that a distance from the back surface decreases. The sensor is arranged on one side from the center of the end of the apparatus main body.

In the illuminating device according to the present invention, when the direction desired to be outward from the opening of the sensor is varied in the first plane, the first fixing means for fixing the desired direction by operation, A second fixing means for fixing the desired direction by an operation in a case where the direction in which the outward direction is desired is varied in the second plane from the opening;
And the desired direction when changing in the first plane is a first home position of the sensor having a first predetermined relationship with the apparatus main body, and the desired direction when changing in the second plane. A second home position of the sensor having a second predetermined relationship with the apparatus main body, and the first fixed position when the posture of the sensor is aligned with the first home position and the second home position. The first fixing means and the second fixing means are positioned at positions where the means and the second fixing means can be operated from the same direction.

  In the lighting device according to the present invention, when the apparatus main body is disposed on a wall or a ceiling, the first fixing means and the second fixing means are such that the operation from the same direction is the operation from the floor direction. It is positioned.

  In the illuminating device according to the present invention, the angle adjuster includes a first component that rotates when it is varied within the first plane, and a second component that rotates when it is varied within the second plane. And a third part having a rotation base of the second part, and the first part is provided with a first scale for indicating the desired direction when the first part is varied in the first plane. The third part is provided with a second scale indicating the desired direction when changing in the second plane, and the third part has a first scale notch and a second scale. A common position mark is provided to selectively indicate each step of the second scale.

  The illuminating device according to the present invention includes a light receiving unit having a predetermined detection range, and includes a sensor that is variable in two planes that are not parallel to each other by the angle adjusting unit. Different detection ranges in two directions can be set regardless of the above, and appropriate illumination control is possible.

  Since the illumination device according to the present invention is configured to adjust the effective detection range of the light receiving unit, the size of the detection range can be easily set.

  In the illumination device according to the present invention, the angle adjustment unit has a shaft portion that connects the device main body and the sensor, and the projecting dimension of the sensor from the end of the device main body is variable, so that the detection range can be adjusted. The packaging material can be reduced by storing the sensor on the instrument side during packaging.

  In the illumination device according to the present invention, since the sensors are disposed at both ends of the device main body, different two-direction detection ranges can be set regardless of the installation position of the appliance and the mounting direction.

  The illumination device according to the present invention has a reflector that is inclined with respect to the back surface of the apparatus main body from one side surface toward the other side surface so that the distance from the back surface becomes smaller. Since it is arranged on one side from the center, the light emitted from the light source is reflected by the reflecting plate to the side where the sensor is not provided, and the sensor malfunctions due to light from the light source, etc. This can be prevented.

  According to the illumination device of the present invention, the first fixing means and the second fixing means can be operated from the same direction when the postures of the sensors are both the first home position and the second home position. Since the first fixing means and the second fixing means are positioned at the positions, it is possible to carry out the fixing operation all at once, which is convenient.

  According to the lighting device of the present invention, when the apparatus main body is arranged on the wall or the ceiling, the first fixing means and the second fixing means so that the operation from the same direction is the operation from the floor direction. Therefore, it is possible to easily carry out the work in a lump.

  According to the illuminating device of the present invention, the first graduation indicating the direction in which the outside is desired from the opening of the sensor in the case of being varied in the first plane, and the case of being varied in the second plane. With respect to the second scale that indicates the direction in which the sensor is desired to be exposed from the opening of the sensor, the step of the scale can be indicated by a common position mark, and the configuration can be simplified.

  Embodiments of a lighting device according to the present invention will be described below with reference to the accompanying drawings. In each figure, the same components are denoted by the same reference numerals and redundant description is omitted. FIG. 1 shows a perspective view of a part of the illumination device according to the embodiment made transparent, and is seen from the front side, and FIG. 2 is a perspective view from the side side. This illuminating device includes a straight tube fluorescent lamp 11 as a light source in a housing of the apparatus main body 10. Electric power is supplied to the fluorescent lamp 11 through the socket 12. Inside the apparatus main body 10 is provided a lighting circuit 50 for supplying electric power via the socket 12 to light the fluorescent lamp.

  A reflection plate 13 is provided inside the apparatus main body 10. The reflecting plate 13 is inclined in one direction with respect to the back surface 10 a of the apparatus main body 10. That is, the reflecting plate 13 is inclined from one peripheral edge portion 14a parallel to the fluorescent lamp 11 on the opening side of the apparatus main body 10 toward the back surface 10a of the apparatus main body 10, and the reflecting plate 13 is connected to the peripheral edge. It is connected to the peripheral edge part 14b of the opposite side parallel to the part 14a.

  On the rectangular side walls 15 provided at both ends in the longitudinal direction of the apparatus main body 10, arms 17 that are orthogonal to the respective side walls 15 and project from the apparatus main body 10 are provided upright. A sensor 30 having a sensor case 20 as a housing is attached to the tip of the arm 17, and the sensor 30 is disposed at a position protruding from the apparatus main body 10. The sensor 30 has a predetermined detection range in the longitudinal direction of the sensor case 20. The standing position of the arm 17 is provided on the side where the distance L between the inclined surface of the reflecting plate 13 and the back surface 10 a of the apparatus body 10 is larger than the distance Lc at the center of the side wall 15. That is, the arm 17 is erected on the side closer to the peripheral edge portion 14 a than the fluorescent lamp 11. For this reason, most of the light emitted from the fluorescent lamp 11 and reflected by the reflecting plate 13 does not affect the sensor 30.

  As shown in FIG. 3, the arm 17 is a two-stage cylindrical arm composed of a base arm 17a and a tip arm 17b, and an arrow Z so that the tip arm 17b can be stored in the base arm 17a. Equipped with an expansion / contraction mechanism that expands and contracts in the direction. The base arm 17 a is implanted in a cylindrical holding portion 18 in the apparatus main body 10, and includes a mechanism that expands and contracts so that the base arm 17 a is accommodated in the holding portion 18. The dimensions of the sensor 30 and the side wall 15 of the apparatus main body 10 can be varied by the arm 17 having the expansion / contraction mechanism. With this configuration, the storage state in which the sensor 30 is in contact with the side wall 15 can be realized, and the lighting device in this state reduces the amount of protrusion of the sensor 30 from the apparatus main body 10. Therefore, the lighting device can be packaged with a small amount of packaging material. Further, when the lighting device is stored in the storage box, problems such as the protrusion hooking on the storage box can be reduced, and the storage can be easily performed and an accident such as breaking of the arm 17 of the protrusion can be prevented. From the viewpoint of preventing an accident such as the arm 17 from being broken, it is preferable to form a hole 19 indicated by a two-dot chain line as an imaginary line at the standing position of the arm 17 on the side wall 15. The hole 19 is formed to be slightly larger than the shape of the sensor case 20 in consideration of taking out the stored sensor 30, and the sensor case 20 can be accommodated in the apparatus main body 10.

  The distal arm 17b is rotatable about the longitudinal center of the arm 17 in the cylinder of the base arm 17a, and the proximal arm 17a is rotatable about the longitudinal center of the arm 17 in the cylinder of the holding unit 18. is there. That is, the arm 17 functions as an angle adjusting portion that is a mechanism that enables the arm 17 to rotate as indicated by an arrow X in FIG. 4, and the sensor case 20 of the sensor 30 is rotated with respect to the apparatus main body 10 by this mechanism. Can be made. That is, the detection direction of the sensor 30 is variable in one plane (first plane). In other words, the sensor 30 is capable of turning about the arm 17, and thus has a panning mechanism that can pan the detection direction of the sensor 30 by 360 degrees.

  The arm 17 and the sensor case 20 rotate (tilt) the sensor case 20 in the longitudinal direction Y of FIG. 4 with respect to the arm 17, and the detection direction of the sensor 30 is not parallel to one plane (first plane). They are connected by a shaft 21 as an angle adjusting unit that is variable in a different plane (second plane). The sensor case 20 can be stopped at a required position by the shaft 21, and the detection direction of the sensor 30 can be adjusted vertically by tilting with the shaft 21 as an axis.

  As shown in FIG. 5, the sensor case 20 houses a light receiving portion 62 as a sensor detecting portion, and the light receiving portion 62 is desired to look outward from an opening 61 formed on one side of the sensor case 20. Arranged so that a part of the light receiving part 62 protrudes from the sensor case 20. The detection range of the sensor 30 can be appropriately set by adjusting the amount of protrusion of the light receiving unit 62 from the sensor case 20. Here, the detection direction of the sensor 30 is a direction in which the light receiving unit 62 desires outward from the opening 61 of the sensor case 20, and is a direction from the light receiving unit 62 toward the approximate center of the detection range.

  A method for adjusting the detection range of the sensor 30 will be described below. The sensor 30 has a cylindrical inner casing 31 that encloses the side portion of the light receiving section 62 and a substantially cylindrical outer casing 32 that encloses the inner casing 31. The inner casing 31 of the light receiving section 62 is fixed. Although coupled, the inner casing 31 and the outer casing 32 are slidable. A groove 33 is formed in the outer casing 32 so as to extend in the length direction of the cylinder, and a lever 34 provided on the side surface of the inner casing 31 protrudes from the groove 33. By moving the lever 34 along the groove 33, the sensor 30 can be reciprocated as shown by the arrow A. At this time, the head portion 35 that is a detection portion of the sensor 30 enters and exits from the distal end portion 32a of the outer housing 32, and the expected angle θ with respect to the detection area can be adjusted, and the effective detection range of the light receiving portion 62 is adjusted. It is configured to be able to. FIG. 5A shows a state where the head 35 is slightly protruded to increase the expected angle θ, and FIG. 5B shows a state where the head 35 is slightly retracted to reduce the expected angle θ. ing. This configuration is angle changing means for changing the expected angle with respect to the detection area.

  FIG. 6 shows another embodiment of the means for changing the expected angle with respect to the detection area, that is, the means for enabling the effective detection range of the light receiving unit 62 to be adjusted. A screw hole 38 is provided at the center of the bottom surface of the inner housing 31, and a screw 39 that is screwed into the screw hole 38 is provided on a shaft 37 that extends from the center of the disc-shaped rotary handle 36. A bearing portion 24 of a shaft 37 is formed on the tail portion 23 of the sensor case 20. A stopper 25 is attached to the screw 39. The outer casing 32 and the rotary handle 36 are independent. In this configuration, when the rotary handle 36 is rotated with the outer casing 32 held, the shaft 37 rotates and the screw 39 rotates, so that the inner casing 31 having the screw hole 38 passes through the outer casing 32. Slide to move in the direction of arrow B. As a result, the sensor 30 fixed to the inner housing 31 also moves in the direction of arrow B, so that the expected angle θ with respect to the detection area can be adjusted.

  The apparatus main body 10 is provided with a mounting arm 43 extending to the front side, and a plate-like, for example, translucent panel 41 is attached to the mounting arm 43. Light emitted from the fluorescent lamp 11 passes through the panel 41 and is irradiated through the gap between the panel 41 and the apparatus main body 10.

  The lighting device configured as described above is arranged so that the two side walls 15 are located on both sides, or arranged so that the two side walls 15 are located on the upper and lower sides, for example, on the wall of a landing on a staircase It is attached. In the attached state, the distance between the sensor case 20 and the apparatus main body 10 is appropriately set by the expansion / contraction mechanism of the arm 17 to avoid an obstacle, and the sensor 30 has a thermal sensor function, for example, to detect a person. It can be so.

  One of the pair of sensors 30 detects a person on the stairs extending upward from the landing, and the other sensor 30 detects a person on the stairs extending downward from the landing. That is, the sensor case 20 is rotated in the vertical direction with respect to the arm 17 about the shaft 21 to obtain a desired elevation angle or depression angle, and further, the sensor case 20 is rotated in the lateral direction with respect to the arm 17 by using the Pann mechanism of the arm 17. Thus, the sensor 30 is directed in a desired direction.

  When the configuration of FIG. 5 is adopted, the lever 34 is used, and when the configuration of FIG. 6 is adopted, the rotary handle 36 is rotated to detect and adjust the exposure range of the head 35 in the sensor 30. The expected angle θ with respect to the area is set as a desired angle. Thereby, when the bottom of the stairs is a floor or the like, it is possible to prevent a problem that a person who is on the floor but does not use the stairs and turns on the lighting device can be prevented.

  When the lighting device is arranged vertically on the wall of the stair landing, that is, when the two side walls 15 are arranged vertically so as to be parallel to the ceiling surface or the floor surface, the sensor case 20 is centered on the shaft 21. Is rotated in the vertical direction with respect to the arm 17 to obtain a desired elevation angle or depression angle, and further, the sensor case 20 is rotated in the lateral direction with respect to the arm 17 by using the panning mechanism of the arm 17 so that the sensor 30 faces the desired direction. For example, the sensor 30 on the ceiling surface side can detect a person on the stairs extending upward from the landing, and the other sensor 30 can detect a person on the stairs extending downward from the landing. .

  In this way, by rotating the detection direction of the sensor 30 in two planes that are not parallel to each other, for example, the sensor 30 on the ceiling surface side detects a person on the stairs extending upward from the landing, and the other sensor 30 Can detect a person on the stairs extending downward from the landing.

  In the above embodiment, one of the pair of sensors 30 is provided on one side wall 15 of the apparatus main body 10 and the remaining sensor 30 is provided on the other side wall 15 of the apparatus main body 10. However, the illumination device according to another embodiment is provided. Then, as shown in FIG. 7, all of the pair of sensors 30 are provided on one side wall 15 of the apparatus body 10. In the case of this other embodiment, even when the two side walls 15 are arranged so as to be positioned up and down and attached to the landing wall on the stairs, the sensor case 20 with respect to the arm 17 is centered on the shaft 21. By rotating in the vertical direction to a desired elevation angle or depression angle, and further using the Pann mechanism of the arm 17 to rotate the sensor case 20 laterally with respect to the arm 17 so that the sensor 30 faces the desired direction, It is possible to properly monitor the upper and lower stairs from the landing.

  In this embodiment, if the lengths of the arms 17 that support the pair of sensors 30 are made different, the respective detection ranges can be set without the mutual interference of the sensors 30.

  Further, since the pair of sensors 30 is provided on the side wall 15 side, when the lighting device is arranged vertically, the sensors can be concentrated on the lower portion of the lighting device, and the sensor 30 can be adjusted at a low position. It is possible to easily set the detection direction or detection range of the sensor 30.

  FIG. 8 shows an embodiment of an illuminating device having an improved angle adjusting unit, and FIG. 9 shows a partially sectional exploded perspective view of the angle adjusting unit. In this embodiment, a ring-shaped coupling portion 17f is provided at the end of the arm base portion 17a. The coupling portion 17f is fixed to the arm base portion 17a and does not move.

  A cylindrical portion 17h in which a screw hole into which the screw 17g is screwed is formed on the inner wall is formed on the side portion of the coupling portion 17f. The direction of the hole of the cylindrical portion 17h is the floor direction when the apparatus main body 10 is arranged on a wall or a ceiling. The operation of the screw 17g is an operation from the floor direction. In the example shown in FIG. 8, the case where the apparatus main body 10 is arranged on the wall 90 is shown. Further, a scale 17j having a step indicating a tilt angle along the circumferential direction is formed on the end face of the coupling portion 17f.

  The tip arm 17b includes a flat surface 17k that is configured by two parallel surfaces as shown in FIG. On the base end side of the plane 17k, a protrusion 17m is formed at a position on the circumference around the shaft 21. Also, a position mark 17n, which is a straight line extending in the axial direction of the tip arm 17b, is formed in the cylindrical portion adjacent to the protrusion 17m of the tip arm 17b. A shaft hole 17p is formed on the tip side of the flat surface 17k.

  In the tail portion 23 of the sensor case 20, a flat surface 17k of the tip arm 17b enters, and an elongated hole 26 is formed in consideration of movement when the tip arm 17b rotates. On the outer periphery of the hole 26 outside the elongated hole 26, a scale 26a having a notch for indicating the Pann angle is formed as shown in FIG. A plurality of protrusions 26b are formed at regular intervals on the inner peripheral surface of the long hole 26 as shown in FIG.

  A boss 27 protruding inward is formed near the center of the inner wall of the tail portion 23 in the sensor case 20. The boss 27 is formed on both walls and faces each other, and has a gap for inserting the flat surface 17k of the tip arm 17b. The boss 27 is formed with a screw hole 27a penetrating in the axial direction. When the sensor case 20 and the tip arm 17 b are coupled, the flat surface 17 k of the tip arm 17 b is inserted into the gap formed by the two bosses 27, and the screw 21 a serving as the shaft 21 is placed outside the tail portion 23 of the sensor case 20. Are inserted into the screw holes 27a and screwed together.

  In a state where the sensor case 20 and the tip arm 17b are coupled, the concave portion 26b inside the elongated hole 26 and the projection 17m formed on the flat surface 17k of the tip arm 17b mesh with each other, and the rotation of the tip arm 17b is engaged at a predetermined angle. Stop.

  The sensor case 20 has a first predetermined relationship with the apparatus main body 10 when the desired direction from the opening 61 of the sensor 30 is varied in the first plane (in the case of Pann). 1 home position. That is, as shown in FIG. 8, for example, when the arm 17 and the direction in which the outside is desired from the opening 61 of the sensor 30 are orthogonal, the state in which the direction in which the outside is desired is the front of the apparatus body 10 is the first. Home position.

  The sensor case 20 has a second predetermined relationship in which the desired direction is orthogonal to the arm 17 when the direction desired to be outward from the opening 61 of the sensor 30 is varied in the second plane (in the case of tilt). Has a second home position. The state shown in FIG. 8 is the second home position.

  When the posture of the sensor 30 is aligned with the first home position and the second home position (FIG. 8), the screw 17g constituting the first fixing means and the second fixing means are constituted. The screw 21a to be operated can be operated from the same direction. That is, both the screw 17g and the screw head of the screw 21a face the floor side in FIG. 8, and the fixing work can be performed from the floor side in the same direction. In this embodiment, since the coupling portion 17f does not move, the screw 17g constituting the first fixing means always faces in a certain direction. However, even when the coupling portion 17f moves, the posture of the sensor 30 is the first. The first fixing means and the second fixing means are positioned so that the fixing work can be performed from the same direction when both the home position and the second home position are aligned.

  At the time of panning, the position mark 17n rotates together with the tip arm 17b, indicating any one of the steps of the scale 17j indicating the panning angle, and the panning angle can be known. Further, at the time of tilting, the step of the scale 26a indicating the tilt angle rotates together with the sensor case 20, and any one of the steps of the scale 26a is indicated by the position mark 17n of the tip arm 17b to know the tilt angle. it can. As described above, the position mark 17n is a common guideline that can display the pan angle and the tilt angle at the same time.

The perspective view which made a part transparent about the illuminating device concerning 1st Example of this invention, and was seen from the front side substantially. The perspective view which looked at the illuminating device concerning 1st Example of this invention from the side surface side substantially. The front view for demonstrating the principal part of the illuminating device which concerns on 1st Example of this invention. The perspective view for demonstrating the principal part of the illuminating device which concerns on 1st Example of this invention. The side view for demonstrating the principal part of the illuminating device which concerns on the Example of this invention. Sectional drawing for demonstrating the principal part of the illuminating device which concerns on the Example of this invention. The perspective view which abbreviate | omitted one part about the illuminating device which concerns on 2nd Example of this invention. The partially-omission perspective view which shows the Example which improved the angle adjustment part of the illuminating device which concerns on this invention. The partial cross-section assembly perspective view which shows the principal part of the Example which improved the angle adjustment part of the illuminating device which concerns on this invention. The side view which shows the principal part of the Example which improved the angle adjustment part of the illuminating device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Apparatus main body 11 Fluorescent lamp 13 Reflector 17 Arm 20 Sensor case 21 as a housing | axis 30 Sensor 61 Opening part 62 Light-receiving part

Claims (9)

The device body;
A light source attached to the apparatus body and emitting light;
A housing having an opening and a light receiving portion disposed in the housing so as to look outward from the opening and having a predetermined detection range, and attached to a position protruding from the end of the apparatus main body, A pair of sensors for controlling the light output of the light source;
The sensor housings are provided in the pair of sensor housings, respectively, and the sensor housings are rotated in a pan and a tilt with respect to the apparatus main body in two planes that are not parallel to the direction in which the outside is desired from the sensor opening. A variable angle adjustment unit;
Comprising
The direction in which one sensor and the other sensor are desired to be outside is made different by rotation by panning, and each sensor is made to have a desired direction by rotation of tilt so that the monitoring ranges of the sensors do not overlap. An illumination device characterized by being set . The illumination device according to claim 1, wherein the light receiving unit of the sensor adjusts an effective detection range of the light receiving unit by positioning a part of the housing in the detection range of the light receiving unit. The lighting device according to claim 1, wherein the angle adjustment unit includes a shaft portion that connects the apparatus main body and the sensor, and the projecting dimension of the sensor from the end of the apparatus main body is variable. . The lighting device according to claim 1, wherein the sensors are respectively disposed at both ends of the apparatus main body. A reflection plate provided in the apparatus main body and inclined with respect to the rear surface of the apparatus main body from one side surface toward the other side surface so that a distance from the rear surface decreases; The lighting device according to claim 1, wherein the lighting device is disposed on one side surface side from the center of the lighting device. The lighting device according to claim 1, wherein a pair of the sensors are disposed on one end side of the apparatus main body. A first fixing means for fixing the desired direction by an operation in a case where the direction in which the outward direction is desired from the opening of the sensor is varied in the first plane;
A second fixing means for fixing the desired direction by an operation in the case where the direction in which the sensor is desired to change outward from the opening of the sensor is varied in the second plane;
With
A first home position of the sensor in which the desired direction when changing in the first plane is in a first predetermined relationship with the apparatus main body, and the desired direction when changing in the second plane are the apparatus main body. A second home position of the sensor in a second predetermined relationship,
When the posture of the sensor is aligned with both the first home position and the second home position, the first fixing means and the second fixing means are located at positions where the first fixing means and the second fixing means can be operated from the same direction. 7. A lighting device according to any one of claims 1 to 6, characterized in that the means and the second fixing means are positioned. When the apparatus main body is arranged on a wall or a ceiling, the first fixing means and the second fixing means are positioned so that the operation from the same direction is the operation from the floor direction. Item 8. The lighting device according to Item 7. The angle adjusting unit includes a first component that rotates when it is varied in the first plane, a second component that rotates when it is varied in the second plane, and a rotation of the second component. A third part having a moving base,
The first component is provided with a first scale indicating the desired direction when changing in a first plane,
The third component is provided with a second scale indicating the desired direction when changing in the second plane,
8. The first component according to claim 1, wherein a common position mark is provided on the third component so as to selectively indicate a step of the first scale and a step of the second scale. The lighting device according to item.

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