JP5499486B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device disposed at a high place such as a stage or a studio in order to obtain a production effect, for example.

  Conventionally, as an example of this type of lighting device, the left and right side surfaces of a main body case of a lighting fixture having a light projecting portion, for example, is rotatably held by the U-shaped opening end portion of a U-shaped arm, There is known an illumination device that controls the light projection direction of a lighting fixture by remotely controlling the rotation angle with a remote controller or the like (see, for example, Patent Document 1).

JP 2008-236909 A

  In such a lighting device described in Patent Document 1, a lighting power receiving connector is provided on the back surface of the light projecting unit on the opposite side in the axial direction. ), The connector is positioned above the light source.

  For this reason, since a connector is exposed by the heat_generation | fever of a light source, there exists a subject that it is easy to deteriorate thermally.

  In addition, in the lighting device described in Patent Document 1, the rotation angle of the lighting fixture can be remotely controlled by a remote controller. However, in the case of a lighting device in which the rotation angle of the lighting fixture is manually operated, for example, it is arranged at a high place. There is a case in which the rotation angle of the lighting fixture is manually operated by pressing or pulling the rear side end portion of the installed lighting fixture from below with an operating rod. In this case, the operating rod may accidentally hit the connector and be damaged. In particular, since this type of lighting fixture is generally arranged at a high place, the difficulty of manual operation by the operating rod increases as the operating rod becomes longer and heavier. The risk of breakage is further increased.

  Therefore, it is conceivable to project these connectors on the side of the lighting fixture. In this case, cables such as power lines and signal lines connected to the connector via plugs are connected to the left and right side surfaces of the lighting fixture. There is also a problem that it becomes easy to get entangled by interfering with the U-shaped arm that holds the lens so as to be rotatable, and it is not easy to route these cables and manually operate the rotation angle of the lighting fixture.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lighting device that can reduce interference between a cable connected to the lighting fixture and an arm that supports the lighting fixture. To do.

The invention according to claim 1 includes a light source unit having a light source and a lighting circuit for lighting the light source so as to be dimmable, and a main body provided with a light projecting unit for projecting light from the light source unit on one end side A case, an inclined surface that is inclined in a direction in which the width dimension is reduced toward the other end, and an outer surface of the inclined surface, and is electrically connected to the lighting circuit on the width direction side surface portion on the other end side of the main body case a lighting fixture from Rutotomoni outside with a connector cable is connected; pivotable both widthwise side surfaces of the main body case by a pair of openings, and, as to enter the other end of the main body case between a pair of side edges And a suspension arm to be supported.

In the present invention, the light source may be a halogen lamp, an LED (light emitting diode) or the like, and is not limited to the light source. Further, the connector may be one for receiving a dimming signal, one for receiving a lighting power source, or both . The arm that rotatably supports the left and right side surfaces of the main body case is configured to hold the rotation angle when the rotation angle is controlled by a manual operation.

The invention according to claim 2 houses a light source unit having a light source and a lighting circuit for lighting the light source so as to be dimmable, and a light projecting unit for projecting light from the light source unit is provided on one end side. Luminaire having a case, a recess formed in the side surface in the width direction on the other end side of the main body case, and a connector disposed on the bottom surface of the recess and electrically connected to the lighting circuit and connected to the cable from the outside When; pair of pivotable both widthwise side surfaces of the body case at the opening, and the other end of the main body case and the arm for hanging supporting as to enter between the pair of side edges; are provided with a It is characterized by that.

The concave portion may be configured to open one end side in the axial direction of the main body case and to draw out a cable connected to the connector from the open end.

  The invention according to claim 3 is characterized in that the connector is detachably attached to an L-shaped plug bent into an L-shape connected to one end of the cable.

  The L-shaped plug may be configured such that the plug tip portion that is detachably attached to the connector can be rotated around the central axis with respect to the plug main body portion to which the cable is connected. According to this, in a state where the L-shaped plug is attached to the connector, the cable can be rotated by rotating the main body portion around the central axis with respect to the distal end portion of the L-shaped plug. The range of the cable routing direction can be expanded. This facilitates cable routing.

  According to the lighting device of the first aspect, the cable connected via the plug or the like to the connector disposed on the inclined surface inclined in the direction in which the width dimension of the main body case is reduced, and the left and right sides of the main body case of the lighting fixture Interference with arms that rotatably support both side surfaces can be reduced.

  According to the lighting device of the second aspect, the cable connected to the connector disposed on the outer bottom surface of the concave portion of the main body case via a plug or the like and the left and right side surfaces of the main body case of the lighting fixture are rotatably supported. Interference with the arm to be performed can be reduced.

According to the lighting device according to claim 3, since the plug that is detachably attached to the connector of the main body case is L-shaped, the cable connected to the plug can be routed along the side surface of the lamp case, Interference between the cable and the arm can be further reduced.

The front view of the downward light projection state of the illuminating device which concerns on the 1st Embodiment of this invention. The front view of the horizontal direction light projection state of the illuminating device shown by FIG. The side view of FIG. The rear view of FIG. The figure which shows the internal structure of the illuminating device shown by FIGS. The front view of the inclined surface shown by FIG. The principal part side view of the L-shaped plug cable with which the connector shown by FIG. 1 etc. is mounted | worn. The front view of the downward light projection state of the illuminating device which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the plurality of attached drawings, the same or corresponding parts are denoted by the same reference numerals.

  1 is a front view of a lighting device according to a first embodiment of the present invention in a downward projection state, FIG. 2 is a front view of the lighting device shown in FIG. 1 in a lateral projection state, and FIG. 3 is a side view of FIG. 4 and 4 are rear views of FIG. As shown in these drawings, the luminaire 1 includes a luminaire 2 and a U-shaped arm 3 that sandwiches the luminaire 2 so that the left and right side surfaces of the luminaire 2 can rotate and hold the rotation angle. doing.

  The luminaire 2 includes a light source unit 4 as a main body case and a projection unit 5 that is coaxially connected to the light source unit 4 with a required gap. As shown in FIG. 5, the light source unit 4 includes a planar light source 6, which is an example of a light source unit, and a heat sink, in a light source unit case 4 a, which is an example of an octagonal tube-shaped main body case. The container 7, the power supply unit 8, and the lighting circuit unit 9 are accommodated.

  The planar light source 6 is disposed on one end (left end in FIG. 5) side of the light source unit 4 on the projection unit 5 side. The planar light source 6 has a plurality of LEDs (light emitting diodes) 11 of multiple colors such as white, blue, red, etc. mounted on a printed circuit board 10 in which wiring is printed with a steel foil on a flat electrical insulating substrate. ing.

  A planar porous reflector 12 is mounted on the front surface (left side surface in FIG. 5) of the printed circuit board 10, and the light from the LED 11 is forward (left side in FIG. 5) by the planar porous reflector 12. The light projecting unit that projects light is configured.

  The planar light source 6 is directly attached to the rear surface of the base of the radiator 7 on the rear surface, and heat generated by the planar light source 6 is radiated from the radiation fins 7 a of the radiator 7. The light source unit case 4a forms a plurality of rectangular openings 4b by notching a part of the side surface facing the heat radiating fins 7a. The openings 4b and 4b are made of a metal mesh or the like having excellent air permeability. Each of the perforated plates 4c is stretched so that the outside air can be ventilated. Further, a cylindrical optical path 13 is provided in the vicinity of the planar porous reflector 12, and this cylindrical optical path 13 transmits light of the LED 11 whose light distribution characteristics are controlled by the planar porous reflector 12 into the projection unit 5. Light guide. The cylindrical optical path 13 is formed with a reflecting surface inside, and a diffusion filter 14 for diffusing light from the planar light source 6 whose light distribution is controlled by the planar porous reflector 12 is provided in the cylindrical optical path 13. It has been.

  A cutter portion 15 is provided in the gap between the cylindrical optical path 13 and the projection unit 5 and in the vicinity of the opening end of the cylindrical optical path 13. For this reason, most of the light emitted from the planar light source 16 reaches the cutter unit 15, and the efficiency of suppressing light leakage and light loss is improved.

  The cutter unit 15 controls the light emitted from the cylindrical optical path 13 into a required shape such as a circle or a rectangle. The light whose shape is controlled by the cutter unit 15 is a diffusion sheet of the projection unit 5. 16 through the projection lenses 17a and 17b. The positions of the projection lenses 17a and 17b are adjusted and focused by rotating the adjustment handles 17c and 17d. Further, the projection lenses 17a and 17b irradiate the light that has passed through the cutter unit 15 by enlarging, reducing, and focusing. In addition, the cutter part 15 is abbreviate | omitted on account of illustration in FIG.1, FIG.3, FIG.4 and FIG. The diffusion sheet 16 is provided in order to blur the edge portion of the light shape cut by the cutter unit 15. When the edge portion of the light shape is clear, it is not necessary to provide the diffusion sheet 16.

  The light source unit 4 is detachably attached to the projection unit 5 by a plurality of support bars 18. The support bar 18 is detachably attached to the projection unit 5 by insertion.

  Note that the rotation angle of the lighting device 1 is controlled by pressing a U-shaped operation end 4i projecting from the back surface of the light source unit case 4a with an operation rod (not shown) or pulling. In FIG. 5, reference numeral 2a denotes an operation unit having an operation tool.

  The arm 3 is formed, for example, by bending a circular tube into a U-shape, and the pair of U-shaped opening ends 3a and 3b are connected to the front end of the light source unit case 4a, that is, the projection unit 5 side. A pair of left and right pins 19 and 20 are attached to the left and right side surfaces 4e and 4f of one end so as to be rotatable around the central axis of these pins 19 and 20.

  One of these pins 19, 20, for example 19, has a leaf spring 21 interposed on the outer periphery in the gap between one open end 3 a of the arm 3 and one side surface 4 e of the light source unit case 4 a, 4 is supported so that it can be rotated and its rotation angle can be maintained. A knob 19a having a diameter larger than the shaft diameter is integrally formed at the outer end of one pin 19, and the elastic force of the leaf spring 21 is adjusted by manually rotating the knob 19a. Thus, the tightening force of the light source unit 4 by the pair of opening end portions 3a and 3b can be appropriately adjusted. That is, by adjusting the tightening force of the knob 19a, the rotational angle of the light source unit 4 can be easily adjusted, and the elastic force of the leaf spring 21 can be maintained so that the rotational angle can be maintained. It can be adjusted appropriately.

  The arm 3 is provided with a metal fitting 3d that is mounted on a hanger (not shown) at an axially intermediate portion of the U-shaped crossbar portion 3c. The lighting device 1 is suspended from the baton by attaching the hanger to the baton or the like of the studio or the stage. Moreover, the fall prevention rope 22 hooked, for example on a baton etc. is fastened by the crossbar part 3c.

As shown in FIGS. 1 and 4, the light source unit 4 is directed to the left and right side surfaces 4 e and 4 f on the back surface 4 d side, which is the other end side of the light source unit 4 a, toward the back surface 4 d side (the other end side). Tapers 4g and 4h that are inclined in the direction in which the width dimension decreases are formed. Accordingly, inclined surfaces are formed on the tapers 4g and 4h toward the back surface 4d side of the light source unit case 4a. One or a plurality of connectors 23 and 24 are disposed on one of these tapers 4g and 4h, for example, on the outer surface of 4h. As shown in FIG. 1, the other end side 4 d of the light source unit 4 can enter between a pair of side sides 3 e and 3 e of the arm 3.

  As shown in FIG. 6, these connectors 23 and 24 are, for example, a dimming signal (DMX) reception (IN) connector 23 and a dimming signal transmission (OUT) connector 24. The inner end of the receiving (IN) connector 23 is connected to the lighting circuit unit 9 having a dimming control circuit and the inner end of the dimming signal transmitting (OUT) connector 24, respectively.

  For this reason, the lighting circuit unit 9 can dimm the planar light source 6 using the received dimming signal (DMX). Further, a so-called cascade connection is possible in which the dimming signal transmitting connector 24 is connected to the dimming signal receiving (IN) connector 23 of another light source unit 4 by a signal cable (not shown).

  These connectors 23 and 24 are provided on a part of the nameplate 25. In addition to this, the nameplate 25 is provided with a main switch 26 and a power terminal block 27.

FIG. 7 is a side view of an essential part of an L-shaped plug cable 28 that is detachably attached to these connectors 23 and 24. The L-shaped plug cable 28 is configured by connecting a cable 28b to an L-shaped plug 28a bent into an L shape. L plug 28a is a straight body like tip portion 28c which is detachably attached to the connector 23, the plug body 28d of the L-shaped cable 28b is connected, rotating about the central axis of the distal end portion 28e It is linked movably. For this reason, the plug body 28d and the cable 28b can be rotated around the center axis of the plug tip 28c in a state where the tip 28c of the L-shaped plug 28a is mounted on the connectors 23 and 24.

  Therefore, in this lighting device 1, the left and right side surfaces 4e and 4f of the light source unit case 4a are formed with the tapers 4g and 4h on the back surface 4d side, and the connectors 23 and 24 are disposed on the one taper 4h. As shown in FIG. 1, even when the lighting device 1 is projected downward in the vertical direction, the taper 4h provided with the connectors 23 and 24 is a tapered inclined surface, so the connectors 23 and 24 and one end of the arm 3 (see FIG. 1). 1 can enlarge the gap with the right end portion).

  For this reason, the interference with the arm 3 can be reduced by pulling out the L-shaped plug cable 28b attached to the connectors 23, 24 in the taper direction of the tapers 4g, 4h.

  Further, the L-shaped plug cable 28b can rotate the L-shaped plug body 28d and the cable 28b around the central axis of the distal end portion 28c in a state where the distal end portion 28c is attached to the connectors 23 and 24. The range of the routing direction can be expanded. For this reason, the cable 28b can be routed more easily.

  In addition, since the interference between the cable 28b and the arm 3 is reduced in this way, the rotation of the light source unit 4 can be performed by pressing the operation end 4i on the back surface 4d side of the light source unit 4 with the operation rod or pulling it. The ease of manual operation when controlling the corner can be improved.

  Further, since the connectors 23 and 24 are provided on the tapers 4g and 4h of the light source unit 4 and are not provided on the back surface 4d side, even if the lighting device 1 is controlled to rotate downwardly as shown in FIG. It is possible to reduce the exposure of the connectors 23 and 24 to the back surface 4d side of the lighting device 1 that is easily influenced by the heat generated by the light source section 6. For this reason, the thermal deterioration of the connectors 23 and 24 can be reduced. Further, when the operation end 4i on the back surface 4d side is operated with the operation rod, the possibility that the operation rod accidentally collides with the connectors 23 and 24 and is damaged can be reduced.

  FIG. 8 is a front view of the downward light projection state of the illumination device 1A according to the second embodiment of the present invention. This illumination device 1A is mainly characterized in that the tapers 4g and 4h in the illumination device 1 are replaced with a recess 29, and the connectors 23 and 24 are disposed on the outer bottom surface 29a of the recess 29. The configuration is substantially the same as that of the lighting device 1.

  That is, in the lighting device 1A, a required large recess 29 is formed on one side of the light source unit case 4a, for example, 4f, and one end (upper end in FIG. 8) of the recess 29 is opened 29b. The connectors 23 and 24 are disposed on the outer bottom surface 29 a of the recess 29.

  Also with this lighting device 1A, the gap between the connectors 23, 24 and one end of the arm 3 (the right end in FIG. 8) is enlarged by the gap substantially corresponding to the depth of the recess 29. It is possible to reduce the interference of the L-shaped plug cable 28 attached to one end of the arm 3.

  Further, since the upper end of the recess 29 in FIG. 8 is an opening 29b, the ease of routing can be further improved by pulling out the L-shaped plug cable 28 from the opening 29b.

  Further, since the connectors 23 and 24 are provided in the concave portion 29 of the side surface 4c of the light source unit 4 and are not provided on the back surface 4d side, the connectors 23 and 24 are exposed by the planar light source unit 6 even when the lighting device 1A is in the downward projection state. And thermal degradation can be reduced.

  In the above embodiment, the lighting apparatuses 1 and 1A including the projection unit 5 have been described. However, the present invention is not limited to this, and for example, the lighting apparatus 2 that does not include the projection unit 5 is also applicable. can do.

  DESCRIPTION OF SYMBOLS 1,1A ... Lighting apparatus, 2 ... Lighting fixture, 3 ... Arm, 4 ... Light source unit, 4a ... Light source unit case (main body case), 4e, 4f ... Right and left side surface of light source unit case, 4g, 4h ... Taper, 4i ... Operation end, 5 ... projection unit, 6 ... planar light source (light source part), 9 ... lighting circuit unit, 12 ... planar porous reflector (light projecting part), 23, 24 ... connector, 28a ... L-shaped plug.

Claims (3)

A main body case that houses a light source section having a light source and a lighting circuit that lights the light source in a dimmable manner, and a light projecting section that projects light from the light source section is provided on one end side, and the other end of the main body case An inclined surface that is inclined in the direction in which the width dimension decreases toward the other end and the outer surface of the inclined surface are electrically connected to the lighting circuit and a cable is externally connected to the side portion in the width direction on the side. A lighting fixture having a connector;
Pivotable both widthwise side surfaces of the main body case by a pair of open ends, and an arm for hanging the other end of the main body case between a pair of sides is supported as to enter;
An illumination device comprising: A main body case that houses a light source section having a light source and a lighting circuit that lights the light source in a dimmable manner, and a light projecting section that projects light from the light source section is provided on one end side, and the other end of the main body case A lighting fixture having a recess formed in a side surface in the width direction on the side and a connector disposed on the bottom surface of the recess and electrically connected to the lighting circuit and connected to a cable from the outside;
Pivotable both widthwise side surfaces of the main body case by a pair of open ends, and an arm for hanging the other end of the main body case between a pair of sides is supported as to enter;
An illumination device comprising: The lighting device according to claim 1 or 2, wherein the connector is detachably attached to an L-shaped plug bent into an L-shape connected to one end of the cable.

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