Illuminating device and illumination control system

Abstract

To easily reduce height.SOLUTION: An illuminating device A1 comprises a light source module for emitting light, a first case 12, a power supply circuit part, a second case 20, a supporting part 3, and a connecting part 4. The first case 12 comprises an opening for passing the light, and houses the light source module. The power supply circuit part supplies electric power to the light source module. The second case 20 houses the power supply circuit part. The supporting part 3 rotatably supports the first case 12 with respect to the second case 20. The connecting part 4 mechanically connects the first case 12 and the second case 20. The supporting part 3 rotatably supports the first case 12 by using one end part of the first case 12 as a supporting point. The connecting part 4 mechanically connects the other end part of the first case 12 to the second case 20.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a lighting device and a lighting control system, and more particularly to a lighting device capable of adjusting the direction of light emission, and a lighting control system having the lighting device. [Background technology]

[0002] As a conventional example, an illumination device described in Patent Document 1 is exemplified. The illumination device described in Patent Document 1 (hereinafter, referred to as the conventional example) is used for purposes (stage lighting) of illuminating wall surfaces (horizon surfaces) serving as backgrounds in television studios, theater stages, and the like.

[0003] The conventional example includes a power supply unit, a light source unit arranged above the power supply unit in the height direction, and an arm unit that rotatably supports the light source unit relative to the power supply unit. The light source unit includes a light source housing formed in a rectangular box shape, and a light source and optical components arranged in the light source housing. The power supply unit includes, for example, a box-shaped power supply housing installed on the floor surface, and a power supply unit that is arranged in the power supply housing and supplies power to the light source. The arm unit has an attachment section on one end side that is attached to the power supply unit (power supply housing), a rising section that rises above the power supply unit from the attachment section, and a support section on the other end side that rotatably supports the light source unit (light source housing) at the tip side of the rising section.

[0004] That is, in the conventional example, the irradiation direction of the light emitted from the light source unit can be adjusted by rotating the light source unit supported on the arm unit. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2022-149520 A Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, the arm section in the conventional example supports the light source section at approximately the center in the front-rear direction on both the left and right sides of the light source section (light source housing). Therefore, when the light source section is rotated relative to the power supply section, it is necessary to make the length (height) of the arm section longer (higher) so that the light source section and the power supply section do not interfere with each other. As a result, with the configuration of the conventional example, it is difficult to reduce the height (thinning) of the lighting device.

[0007] An object of the present disclosure is to provide a lighting device and a lighting control system that can be easily made low-profile. [Means for solving the problem]

[0008] An illumination device according to one aspect of the present disclosure includes a light-emitting unit that emits light, a first housing, a power supply circuit unit, a second housing, a support unit, and a connection unit. The first housing has an opening that allows the light to pass and houses the light-emitting unit. The power supply circuit unit supplies power to the light-emitting unit. The second housing houses the power supply circuit unit. The support unit supports the first housing rotatably relative to the second housing. The connection unit mechanically connects the first housing and the second housing. The support unit supports the first housing rotatably with one end of the first housing as a fulcrum. The connection unit mechanically connects the other end of the first housing to the second housing.

[0009] A lighting control system according to one aspect of the present disclosure includes the lighting device and a control device that controls the lighting device. Effect of the Invention

[0010] The lighting device and lighting control system of the present disclosure have the advantage that they can be easily made low-profile. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a front perspective view of a lighting device according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a perspective view of the above lighting device as seen from behind. [Diagram 3] Fig. 3A is a front view of the lighting device of the same, Fig. 3B is a left side view of the lighting device of the same, Fig. 3C is a right side view of the lighting device of the same, Fig. 3D is a rear view of the lighting device of the same, Fig. 3E is a plan view of the lighting device of the same, and Fig. 3F is a bottom view of the lighting device of the same. [Figure 4] FIG. 4 is an exploded perspective view of the above lighting device. [Diagram 5] FIG. 5 is a left side view of the lighting device of the above with the left end cover and the left side plate omitted. [Figure 6] FIG. 6 is a block diagram of a power supply circuit unit in the lighting device. [Figure 7] FIG. 7 is a perspective view of the first modification of the illumination device as viewed from the front. [Figure 8] FIG. 8 is a perspective view of the illumination device according to the second modification seen from the front. [Figure 9] FIG. 9 is a perspective view of the third modification of the illumination device as viewed from the front. [Figure 10] FIG. 10 is a system configuration diagram of a lighting control system including the above lighting device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, the lighting device A1 and the lighting control system C1 according to the embodiment of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiment is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0013] (1) Overview The lighting device A1 according to the embodiment includes a light-emitting unit (light source module 10) that emits light, a first housing 12, a power supply circuit unit 21, a second housing 20, a support unit 3, and a connection unit 4 (see Figures 1 to 4).

[0014] The first housing 12 has an opening (opening 134) that allows light to pass through and houses the light source module 10 (see FIG. 4). The power supply circuit section 21 supplies power to the light source module 10. The second housing 20 houses the power supply circuit section 21 (see FIG. 4). The support section 3 supports the first housing 12 rotatably with respect to the second housing 20. The connection section 4 mechanically connects the first housing 12 and the second housing 20. The support section 3 supports the first housing 12 rotatably with one end of the first housing 12 as a fulcrum. The connection section 4 mechanically connects the other end of the first housing 12 to the second housing 20.

[0015] For example, when first housing 12 is rotatably supported between one end and the other end of first housing 12 as in the conventional example described in Patent Document 1, space for rotating first housing 12 is required between the rotation axis that rotates first housing 12 and second housing 20.

[0016] In contrast, in the lighting device A1 according to the embodiment, one end of the first housing 12 is rotatably supported on the second housing 20 by the support portion 3, so that no space is required between the rotation axis and the second housing 20 for rotating the first housing 12. Therefore, compared to the conventional example described in Patent Document 1, the lighting device A1 according to the embodiment can shorten the distance from the second housing 20 to the first housing 12 when the first housing 12 is in the most reclined state (see FIG. 5). Moreover, in the lighting device A1 according to the embodiment, the other end of the first housing 12 and the second housing 20 are mechanically connected by the connection portion 4, so that the first housing 12 can be reliably fixed to the second housing 20. As a result, the lighting device A1 according to the embodiment can be easily made low-profile.

[0017] Here, the lighting device A1 according to the embodiment may constitute a lighting control system C1 according to the embodiment together with a control device B1. As shown in Fig. 10, the lighting control system C1 according to the embodiment includes the lighting device A1 according to the embodiment and a control device B1 that controls the lighting device A1 according to the embodiment. Note that the lighting control system C1 according to the embodiment may include a plurality of lighting devices A1 according to the embodiment as shown in Fig. 10.

[0018] The control device B1 is preferably connected to the lighting device A1 according to the embodiment so as to be able to communicate with it via a communication cable X1. The control device B1 transmits a control signal to the lighting device A1 according to the embodiment through the communication cable X1, and controls (switches between on and off, adjusts brightness, adjusts color, etc.) the lighting device A1 according to the embodiment using the control signal.

[0019] Thus, in the lighting control system C1 according to the embodiment, since the lighting device A1 according to the embodiment is configured as described above, it is possible to easily reduce the height of the lighting device A1 according to the embodiment.

[0020] (2)Details As shown in Figs. 1 to 5, the illumination device A1 according to the embodiment (hereinafter, abbreviated as illumination device A1) includes a light-emitting unit 1, a power supply unit 2, a pair of support parts 3, and a pair of connection parts 4. As in the conventional example, the illumination device A1 is a so-called horizon light (lower horizon light) used for purposes (stage lighting, production lighting) of illuminating the background surface (horizon surface) of a television studio or a theater stage. However, the illumination device according to the embodiment may be a lighting device other than a horizon light as long as it is an illumination device capable of adjusting the light irradiation direction.

[0021] In the following description, unless otherwise specified, the up-down, front-back, left-right directions indicated by arrows in FIG. 4 are defined as the up-down, front-back, left-right directions of the lighting device A1.

[0022] (2-1) Power supply unit The power supply unit 2 includes a power supply circuit section 21 and a second housing 20 that houses the power supply circuit section 21 (see FIGS. 4 and 5). The power supply unit 2 further includes an outlet 22, a power cable 23, a first connector 24A, a second connector 24B, a control circuit section 25, a display section 26, an input receiving section 27, and the like (see FIGS. 4 to 6).

[0023] (2-1-1) Power supply circuit section As shown in FIG. 6, the power supply circuit unit 21 has an AC / DC converter 210 and six DC / DC converters 211.

[0024] AC / DC converter 210 is configured to convert an AC voltage (for example, a sinusoidal AC voltage with an effective value of 100 V or 200 V) input via power cable 23 into a DC voltage. Three electric wires 230 included in power cable 23 are electrically connected in parallel to outlet 22 for the feed wiring, the input end of AC / DC converter 210, and the frame earth (see FIG. 6).

[0025] The AC / DC converter 210 includes, for example, a full-wave rectifier (diode bridge), a boost chopper for power factor improvement, etc. A pair of output terminals of the AC / DC converter 210 and a pair of input terminals of six systems (six units) of DC / DC converters 211 are electrically connected in parallel. The AC / DC converter 210 is configured as a printed circuit in which a plurality of circuit elements 2101 are mounted on a rectangular circuit board 2100 (see FIGS. 4 and 5).

[0026] The six DC / DC converters 211 correspond one-to-one to the six types of LEDs 101 constituting the light source module 10 as described later, and supply a direct current to the corresponding one type of LED 101 via a pair of electric wires 212. For example, each DC / DC converter 211 is configured as a buck converter that steps down the direct current voltage input from the AC / DC converter 210. However, each DC / DC converter 211 may be configured as a buck-boost converter or a flyback converter. A pair of electric wires 212 (positive and negative) is electrically connected to the output end of each DC / DC converter 211. However, for one DC / DC converter 211, since the current consumption of the corresponding LED 101 is larger than the current consumption of the other LEDs 101, each pair of electric wires 212 is branched into two electric wires 212, so that a direct current is supplied through a total of four electric wires 212 (two pairs). Therefore, the power supply circuit section 21 is electrically connected to the light-emitting unit 1 by a total of 14 electric wires 212, including seven positive electrodes and seven negative electrodes.

[0027] These six DC / DC converters 211 are configured as printed circuits in which a plurality of circuit elements 2111 are mounted on a rectangular circuit board 2110 (see FIGS. 4 and 5).

[0028] The control circuit unit 25 has a microcontroller as a main component. The control circuit unit 25 also has a communication circuit for communicating with the control device B1 (see FIG. 10) of the lighting control system C1. The control circuit unit 25 also has a plurality of circuit elements 251 including a microcontroller and a communication circuit, and a circuit board 250 on which the plurality of circuit elements 251 are mounted (see FIG. 5). That is, the control circuit unit 25 is composed of a printed circuit in which the plurality of circuit elements 251 are mounted on the rectangular circuit board 250.

[0029] The communication circuit has a function of transmitting and receiving a digital control signal (hereinafter referred to as a DMX signal) conforming to a communication standard suitable for lighting control, for example, DMX (Digital Multiplex) 512A, via a communication cable X1 connected to the first connector 24A (see FIG. 10). However, the communication circuit may have a function of transmitting and receiving a control signal conforming to a communication standard other than DMX 512A, for example, DALI (Digital Addressable Lighting Interface: registered trademark) or a wired LAN standard such as 100BASE-T and 1000BASE-T. The second connector 24B is electrically connected in parallel to the first connector 24A. That is, the control circuit unit 25 (lighting device A1) is electrically connected to the control device B1 by a daisy-chain type network topology (see FIG. 10).

[0030] The control circuit section 25 executes a lighting control program using a microcontroller, thereby controlling the power supply circuit section 21 in response to commands received from the control device B1 via the communication circuit, and controls the blinking, dimming, color adjustment, etc. of the light-emitting unit 1.

[0031] The input reception unit 27 has four tact switches (push button switches) 270 and one slide switch (changeover switch) (see FIG. 5). The input reception unit 27 receives an operation input by an operator according to the on / off state of the tact switches 270 and the slide switches. For example, when an operator presses the tact switch 270, the contact of the tact switch 270 closes, and an operation input of an on operation is received by the input reception unit 27. When an operator slides the operation piece of the slide switch from the off position to the on position, the contact of the slide switch closes, and an operation input of an on operation is received by the input reception unit 27. When an operator slides the operation piece of the slide switch from the on position to the off position, the contact of the slide switch opens, and an operation input of an off operation is received by the input reception unit 27. The operation input received by the input reception unit 27 (for example, a voltage signal corresponding to on / off) is taken into the control circuit unit 25 (microcontroller).

[0032] The display unit 26 has four seven-segment displays 260 (see FIG. 5). Each seven-segment display 260 can display ten numbers from "0" to "9" and several alphabetical characters such as "A", "F", "U", "c", "h", and "n". These four seven-segment displays 260 are controlled by a control circuit unit 25 (microcontroller). The display unit 26 and the input receiving unit 27 are mounted on a single board 261 and are integrally configured (see FIG. 5).

[0033] When the input receiving unit 27 receives an operation input of turning on the slide switch, the control circuit unit 25 electrically connects a termination resistor to the signal transmission contact of the second connector 24B to terminate the second connector 24B. On the other hand, when the input receiving unit 27 receives an operation input of turning off the slide switch, the control circuit unit 25 operates to electrically disconnect the contact of the second connector 24B from the termination resistor to release the termination of the second connector 24B. In other words, when the sending communication cable X1 is connected to the second connector 24B, the slide switch is turned off, and when the sending communication cable X1 is not connected to the second connector 24B, the slide switch is turned on.

[0034] Furthermore, the input receiving unit 27 receives an operational input for switching to the menu mode when one of the tact switches 270 is turned on. Furthermore, the input receiving unit 27 receives an operational input (up / down) for selecting a menu when the other two tact switches 270 are turned on. The input receiving unit 27 receives an operational input for confirming the selected content when the remaining tact switch 270 is turned on. The multiple menus include a manual dimming operation, a DMX address setting, and a setting for an operation when the DMX signal is interrupted.

[0035] For example, when the input receiving unit 27 receives an operation input to select the menu for manual dimming operation from among multiple menus, the control circuit unit 25 increases or decreases the dimming level each time the input receiving unit 27 receives an operation input of the two tactile switches 270 (up / down). Then, when the input receiving unit 27 receives an operation input of the deciding tactile switch 270, the control circuit unit 25 determines the dimming level to the dimming level selected immediately before, and stores the determined dimming level value in the memory of the microcontroller. Furthermore, the control circuit unit 25 controls the power supply circuit unit 21 to supply a direct current according to the determined dimming level from each DC / DC converter 211 to the LEDs 101 of each color.

[0036] Here, the control circuit section 25 displays the dimming level during the setting of the manual dimming operation, the DMX address during and after the setting, etc. on the display section 26. In other words, the operator can perform the setting work while checking the dimming level, DMX address, etc. by the numbers and letters displayed on the display section 26.

[0037] (2-1-2) Second housing The above-mentioned power supply circuit section 21 is housed in a second housing 20 made of metal (see Figs. 4 and 5). The second housing 20 has a box 200 that is open at the top and a cover 206 that closes the opening at the top of the box 200 (see Fig. 4).

[0038] The box 200 has a rectangular bottom plate 201, a rectangular front plate 202 rising upward from the front end of the bottom plate 201, and a rectangular rear plate 203 rising upward from the rear end of the bottom plate 201. The bottom plate 201, the front plate 202, and the rear plate 203 are integrally formed by bending a single metal plate.

[0039] The box 200 further includes a left side plate 204 and a right side plate 205. The left side plate 204 and the right side plate 205 are each formed in a rectangular shape as a whole, but have trapezoidal recesses 2041, 2051 at their upper ends (upper sides) (see FIGS. 4 and 5).

[0040] The left side plate 204 is fixed to the left ends of the front plate 202 and the rear plate 203 with two screws each, thereby forming the left side wall of the box 200. The right side plate 205 is fixed to the right ends of the front plate 202 and the rear plate 203 with two screws each, thereby forming the right side wall of the box 200. Furthermore, the lower ends 2040, 2050 of the left side plate 204 and the right side plate 205 are bent in a direction approaching the bottom plate 201 (see Figs. 1 and 4). Each of the lower ends 2040, 2050 protrudes downward from the lower surface of the bottom plate 201 by a predetermined distance. Note that the predetermined distance is equal to or greater than the height of the heads of the multiple screws 2010 exposed on the lower surface of the bottom plate 201 (see Fig. 5). In other words, when the second housing 20 is installed on the floor surface of a stage, the pair of lower ends 2040, 2050 come into contact with the floor surface, thereby allowing the second housing 20 to be stably installed on the floor surface.

[0041] The two circuit boards 2100, 2110 of the power supply circuit section 21 housed in the second housing 20 are fixed to the bottom plate 201 with their mounting surfaces facing upwards by a plurality of screws 2010 (see FIG. 5). Also, the circuit board 250 of the control circuit section 25 is fixed to a fixing plate 2000 attached to the bottom plate 201 with a plurality of screws 2001 (see FIG. 5). The fixing plate 2000 is formed in a rectangular shape, and is attached to the bottom plate 201 so as to stand upright from the bottom plate 201. In other words, the circuit board 250 is housed in the box 200 in an upright state with the surface on which the plurality of circuit elements 251 are mounted being approximately parallel to the front plate 202 (see FIG. 5).

[0042] The substrate 261 on which the display unit 26 and the input receiving unit 27 are mounted is fixed to the center of the rear surface of the front panel 202 with multiple screws (see FIG. 5). The front panel 202 is provided with six windows. The display surfaces of the four 7-segment displays 260 of the display unit 26 are exposed from one window. The operating piece of the slide switch of the input receiving unit 27 is exposed from another window. The remaining four windows expose the operating surfaces of the four tact switches 270 of the input receiving unit 27, one each.

[0043] A first connector 24A and a cable gland 231 are attached to the left side plate 204 (see Figs. 3B and 4). The cable gland 231 supports and protects the power cable 23 (see Fig. 6) that is pulled out through a cable insertion hole provided in the left side plate 204. However, the power cable 23 is not shown in Figs. 1 to 4. On the other hand, a receptacle 22 and a second connector 24B are attached to the right side plate 205 (see Figs. 1, 2 and 4).

[0044] Furthermore, two female threads 2052 are provided in the rear portion of the recess 2051 at the upper end of the right side plate 205, lined up in the front-to-rear direction (see FIG. 4). These two female threads 2052 are both formed of hexagonal welded nuts welded to the right side plate 205. Furthermore, one female thread 2042 is provided in the rear portion of the recess 2041 at the upper end of the left side plate 204 (see FIG. 4). The female thread 2042 is formed of a hexagonal welded nut welded to the left side plate 204.

[0045] The cover 206 has a first cover portion 2061, a second cover portion 2062, a hinge mounting portion 2063, a first mounting piece 2064, a second mounting piece 2065, and a pair of fixing pieces 2066 (see FIGS. 2, 4, and 5). However, the first cover portion 2061, the second cover portion 2062, the hinge mounting portion 2063, the first mounting piece 2064, the second mounting piece 2065, the hinge mounting portion 2063, the first mounting piece 2064, the second mounting piece 2065, and the pair of fixing pieces 2066 are integrally formed by bending a single metal plate.

[0046] The first cover portion 2061 is formed in a rectangular shape. A rectangular first mounting piece 2064 protrudes downward from the rear end of the first cover portion 2061. A rectangular hinge mounting portion 2063 protrudes obliquely upward and forward from the front end of the first cover portion 2061 (see FIG. 2). A rectangular second cover portion 2062 protrudes forward from the front end of the hinge mounting portion 2063. A rectangular second mounting piece 2065 protrudes downward from the front end of the second cover portion 2062. The pair of fixing pieces 2066 are each formed in a rectangular shape and protrude obliquely downward and forward from the left end and right end of the hinge mounting portion 2063, one at a time.

[0047] Thus, the first mounting piece 2064 is screwed to the top of the rear plate 203, and the second mounting piece 2065 is screwed to the top of the front plate 202, thereby joining the box 200 and the cover 206, and the second housing 20 is assembled.

[0048] Here, the protective part 5 is attached to the front center of the first cover part 2061 (see Figs. 2, 4 and 5). The protective part 5 is constituted by a bushing. The bushing is made of a tubular synthetic resin molded body with a bellows-shaped peripheral wall, and is formed to be expandable and contractible in the axial direction. One axial end (lower end) of the protective part 5 is fitted into a through hole provided in the first cover part 2061. Then, the electric wire 212 drawn out from this through hole is inserted into the protective part 5.

[0049] (2-2) Light emitting unit The light emitting unit 1 includes two light source modules 10, four lens blocks 11, a first housing 12, and two panels 15 (see FIGS. 4 and 5).

[0050] (2-2-1) Light source module Each of the two light source modules 10 has a rectangular light source substrate 100 and six types of LEDs 101 with different light emission colors. The six types of LEDs 101 are LEDs with light emission colors of red, green, blue, amber, sky blue, and emerald green. Note that a plurality of each of the six types of LEDs 101 are mounted on the surface of the light source substrate 100. However, the types (light emission colors) and the number of LEDs 101 are merely an example.

[0051] These six types of LEDs 101 are mounted on the surface of the light source substrate 100 so as to be aligned in two rows along the longitudinal direction of the light source substrate 100 (see FIGS. 4 and 5). The LEDs 101 in each row are mounted so as to be aligned at equal intervals except for the central portion in the longitudinal direction of the light source substrate 100. Furthermore, each light source substrate 100 is provided with one positioning groove 1000 at the central portion in the longitudinal direction and at both ends in the longitudinal direction (see FIGS. 4 and 5). In the following description, the LEDs 101 aligned in the rear row may be referred to as first LEDs 101A, and the LEDs 101 aligned in the front row may be referred to as second LEDs 101B.

[0052] Among the multiple LEDs 101, the LEDs 101 of the same type (same light emission color) are electrically connected in series by printed wiring formed on the surface (upper surface) of the light source substrate 100. Both ends of these printed wiring are electrically connected to electric wires 212 of the power supply circuit unit 21 via multiple connectors 102 mounted on the front end portions at both ends of the light source substrate 100 in the longitudinal direction.

[0053] (2-2-2) Lens block All four lens blocks 11 have a common configuration (see FIG. 4).

[0054] Each lens block 11 has a first lens portion 111, a second lens portion 112, a base portion 110 connecting the first lens portion 111 and the second lens portion 112, a first attachment portion 113, a second attachment portion 114, and a positioning portion 115 (see FIGS. 4 and 5). The first lens portion 111, the second lens portion 112, the base portion 110, the first attachment portion 113, the second attachment portion 114, and the positioning portion 115 are integrally formed from a synthetic resin material having translucency such as polycarbonate resin or acrylic resin. However, each lens block 11 may be formed from inorganic glass such as quartz glass instead of the synthetic resin material.

[0055] First lens portion 111 controls the light distribution of light (hereinafter referred to as first light) emitted from multiple first LEDs 101A. Specifically, first lens portion 111 controls the light distribution so as to make the first light closer to parallel light (narrow the irradiation range).

[0056] The second lens unit 112 has an incident surface 1120 on which light (hereinafter referred to as second light) emitted from the multiple second LEDs 101B is incident, and an exit surface 1121 from which the second light incident from the incident surface 1120 is emitted. In addition, the incident surface 1120 and the exit surface 1121 have an inclined portion 1122 that is inclined in a direction (downward) approaching the light source substrate 100 as it moves away from the second LEDs 101B along the front-rear direction. Here, the portion of the second lens unit 112 behind the inclined portion 1122 controls the light distribution so as to make the second light closer to parallel light (narrow the irradiation range) like the first lens unit 111. On the other hand, the inclined portion 1122 of the second lens unit 112 has an incident surface 1120 and an exit surface 1121 that are planes parallel to each other (see FIG. 5). Therefore, the second light passes through the inclined portion 1122 almost straight.

[0057] Base portion 110 connects first lens portion 111 and second lens portion 112 in the front-rear direction (see FIG. 5). Positioning portions 115 are provided on the underside of base portion 110 at both ends in the longitudinal direction (left-right direction). Each of these positioning portions 115 is formed in a quadrangular prism shape and protrudes downward from the underside of base portion 110 (see FIG. 5).

[0058] Two first mounting portions 113 are provided on each lens block 11 (see FIG. 4). The two first mounting portions 113 are formed to have the same shape (rectangular flat plate shape) and the same dimensions. The two first mounting portions 113 each protrude rearward from the rear end of the first lens portion 111.

[0059] The second mounting portion 114 protrudes forward from the center in the longitudinal direction (left-right direction) at the front end of the inclined portion 1122. The second mounting portion 114 is formed in an L-shape when viewed in the longitudinal direction (left-right direction) of the lens block 11. The second mounting portion 114 is provided with two U-shaped screw insertion grooves 1140 that are open on the front end side (see FIG. 4).

[0060] (2-2-3) Panel The two panels 15 are formed in the shape of rectangular flat plates from a synthetic resin having translucency (e.g., acrylic resin or polycarbonate resin) (see FIG. 4). However, each panel 15 is formed by filling a filler (filling agent) such as titanium oxide, glass beads, or mica into the synthetic resin, so as to diffuse the transmitted light (the first light and the second light). Alternatively, each panel 15 may be configured to diffuse the transmitted light by providing an uneven or textured surface or both the front and back surfaces.

[0061] (2-2-4) First cabinet The first housing 12 has a frame 13 and a pair of end covers (a right end cover 14R and a left end cover 14L).

[0062] The frame 13 has a bottom wall 130, a first side wall 131, a second side wall 132, and a front wall 133 (see Figs. 4 and 5). The bottom wall 130 is formed in a rectangular shape. However, a downwardly protruding, angular gutter-shaped protruding portion 135 is integrally formed at the front portion of the bottom wall 130. The first side wall 131 is formed in a rectangular shape and protrudes upward from the rear end of the bottom wall 130. The second side wall 132 is formed in a rectangular shape and protrudes upward from the front end of the bottom wall 130 (the front end of the protruding portion 135). The front wall 133 is formed in a rectangular shape and protrudes inward from the respective tips (upper ends) of the first side wall 131 and the second side wall 132. The bottom wall 130, the first side wall 131, the second side wall 132, the front wall 133, and the protruding portion 135 are integrally formed by extrusion molding of aluminum or an aluminum alloy.

[0063] Here, the second side wall 132 has a shorter length in the up-down direction than the first side wall 131 (see FIG. 5). That is, the front wall 133 is inclined so as to gradually approach the bottom wall 130 from the first side wall 131 toward the second side wall 132. In the embodiment, the inclination angle of the front wall 133 with respect to the bottom wall 130 is 20 degrees. Note that the inclination angle of the front wall 133 with respect to the bottom wall 130 is not limited to 20 degrees, but is preferably in the range of 15 degrees to 25 degrees.

[0064] Further, a groove (first mounting groove 136) is formed along the longitudinal direction (left-right direction) of the first side wall 131 at approximately the center in the up-down direction on the inner surface of the first side wall 131 (see FIGS. 4 and 5). The first mounting groove 136 is formed over the entire longitudinal direction of the first side wall 131 from the left end to the right end. The two first mounting portions 113 of each lens block 11 are inserted into the first mounting groove 136 (see FIG. 5).

[0065] Furthermore, a pair of grooves (second mounting grooves 137) are formed in the upper end portions of the inner surfaces of the first side wall 131 and the second side wall 132 in the longitudinal direction (left-right direction) of the first side wall 131 and the second side wall 132 so as to be aligned in the up-down direction (see FIG. 5). The pair of second mounting grooves 137 are formed in the entire longitudinal direction of the first side wall 131 and the second side wall 132 from the left end to the right end so as to be parallel to the front wall 133. Both ends of the panel 15 in the short direction (front-rear direction) are inserted into the pair of second mounting grooves 137 (see FIG. 5).

[0066] Meanwhile, a protrusion 135 is provided at the front end portion of the bottom wall 130 (see Figs. 4 and 5). The protrusion 135 is formed in a square gutter shape spanning the entire length of the bottom wall 130 from the left end to the right end in the longitudinal direction (left-right direction). The wall on the front side of the protrusion 135 is formed integrally with the second side wall 132. A through hole is provided in the center of the protrusion 135 in the longitudinal direction, and the other end (upper end) of the protection part 5 is fitted into this through hole.

[0067] Thus, the bottom wall 130 in the embodiment can be divided into a first region S1 excluding the protruding portion 135 and a second region S2 including the protruding portion 135. The light source module 10 is disposed in the first region S1, and the multiple electric wires 212 introduced from the through-holes are housed in the second region S2 (see FIG. 5).

[0068] The pair of end covers (the right end cover 14R and the left end cover 14L) are formed to be plane-symmetrical to each other. Therefore, in the following description, the left and right end covers 14R, 14L will be collectively referred to as end covers 14.

[0069] The end cover 14 has a trapezoidal cover body 140, a rectangular protruding piece 141, and a peripheral wall 142 protruding in the thickness direction (left-right direction) from the periphery of the cover body 140 and the protruding piece 141 (see FIG. 2). The protruding piece 141 protrudes downward from the lower front end of the cover body 140. The cover body 140, the protruding piece 141, and the peripheral wall 142 are integrally formed by aluminum die casting.

[0070] The end cover 14 is fixed to the longitudinal (left-right) ends of the frame 13 by a plurality of fixing screws 16 (three in this embodiment) (see Figs. 1 and 2). The longitudinal ends of the frame 13 are housed inside the peripheral wall 142 of the end cover 14 (see Figs. 2 and 5). A seal member 17 is disposed between the cover body 140 of the end cover 14 and the ends of the two panels 15 (see Figs. 4 and 5). The seal member 17 is formed in a rectangular shape from a highly elastic material such as silicone rubber. The seal member 17 seals the gap between the cover body 140 of the end cover 14 and the ends of the panels 15, thereby preventing foreign objects such as insects from entering between the two panels 15.

[0071] The first housing 12 is assembled by screwing the two end covers 14 to the frame 13. A rectangular opening 134 is formed in the first housing 12 on a surface (front surface) facing the bottom wall 130. The opening 134 is surrounded by the front wall 133 and peripheral walls 142 of the pair of end covers 14 (see FIG. 4). Light (first light and second light) emitted from the light source module 10 accommodated in the first housing 12 is emitted to the outside of the first housing 12 through the opening 134.

[0072] (2-2-5) Assembly of the light emitting unit Next, there will be described a procedure for assembling the light emitting unit 1. However, the assembly procedure described below is only an example, and some steps may be replaced, omitted, or added.

[0073] First, a worker performing assembly work (hereinafter, referred to as the worker) attaches two light source modules 10 to the first region S1 in the bottom wall 130 of the frame 13 (see FIG. 4). The worker screws the two light source modules 10 to the inner bottom surface of the bottom wall 130 so that the longitudinal direction of each of the two light source modules 10 coincides with the longitudinal direction of the first region S1 of the bottom wall 130. The worker also places an electrically insulating sheet material (thermal conductive sheet) between the inner bottom surface of the bottom wall 130 and each light source module 10.

[0074] Next, the worker electrically connects one end of the electric wires 212 to each of the multiple connectors 102 of each light source module 10. Then, the worker stores the multiple electric wires 212 in the protruding portion 135 of the frame 13 while being held by the multiple cable holders 122 (see FIG. 5 ). In addition, the worker draws the other end of the multiple electric wires 212 to the outside of the frame 13 through a through hole provided in the protruding portion 135.

[0075] Next, the worker attaches the four lens blocks 11 to the frame 13. The worker first inserts a pair of first mounting portions 113 of the lens block 11 into the first mounting groove 136 from the front of the frame 13. Then, the worker positions the lens block 11 with respect to the light source module 10 by inserting the positioning portion 115 of the lens block 11 into the positioning groove 1000 of the light source board 100 (see FIG. 5). Then, the worker attaches the second mounting portion 114 of the lens block 11 to the bottom wall 130 of the frame 13 by screwing. Specifically, the worker inserts mounting screws 116, which are so-called shoulder screws, one by one into a pair of screw insertion grooves 1140 of the second mounting portions 114, and screws them into screw holes provided in the bottom wall 130.

[0076] Next, the worker attaches the two panels 15 to the frame 13 by inserting both ends of the panels 15 in the short direction into the second mounting grooves 137 starting from one end of the frame 13 in the long direction (for example, the right end) (see FIG. 5).

[0077] Finally, the worker screws the right end cover 14R to the right end of the frame 13 and screws the left end cover 14L to the left end of the frame 13, thereby forming the first housing 12.

[0078] With the above steps, assembly of the light emitting unit 1 is completed.

[0079] (2-3) Support part The support part 3 includes a hinge. In the embodiment, the support part 3 is configured with a hinge. The support part 3 (hinge) has a pair of blades (first mounting plate 31, second mounting plate 32) having one or more shaft tubes (first shaft tube 310, second shaft tube 320), and a shaft rod (pin 33) inserted into the shaft tube (see Fig. 2 and Fig. 5). The first mounting plate 31 is screwed to the outer lower surface of the protruding part 135 of the first housing 12. The second mounting plate 32 is screwed to the hinge mounting part 2063 of the second housing 20. The first mounting plate 31 has one shaft tube (first shaft tube 310) in the center. The second mounting plate 32 has two shaft tubes (second shaft tube 320). The two second shaft tubes 320 are provided on both ends of the second mounting plate 32, one on each side. Then, with the first barrel 310 disposed between the two second barrels 320, the pin 33 is inserted into the two second barrels 320 and one of the first barrels 310. As a result, the first housing 12 of the light emitting unit 1 is supported by the two support parts 3 to be rotatable relative to the second housing 20 of the power supply unit 2 (see FIG. 2).

[0080] (2-4) Connection The connection portion 4 includes a first connection portion 4A and a second connection portion 4B (see FIG. 2). The first connection portion 4A mechanically connects the rear end portion of the bottom wall 130 of the first housing 12 to the upper rear end portion of the right side plate 205 of the second housing 20. The second connection portion 4B mechanically connects the rear end portion of the bottom wall 130 of the first housing 12 to the upper rear end portion of the left side plate 204 of the second housing 20. Both the first connection portion 4A and the second connection portion 4B are formed of a metal plate.

[0081] The first connection part 4A has a first fixing part and an attachment piece 40. The first fixing part can fix the first housing 12 at each predetermined rotation angle within the rotation range of the first housing 12 relative to the second housing 20. Specifically, the first fixing part has a first plate-shaped part 41A and a first position fixing part 42A. The first plate-shaped part 41A has a rotation direction of the first housing 12 as its longitudinal direction, and has a plurality of fixing holes 43 provided along the longitudinal direction (see FIG. 2). The attachment piece 40 protrudes from the tip (upper end) of the first plate-shaped part 41A in the thickness direction of the first plate-shaped part 41A.

[0082] The fixing holes 43 are arranged in two rows along the longitudinal direction of the first plate-shaped portion 41A. However, the fixing holes 43 in the rear row are arranged between the fixing holes 43 in the front row in the short-side direction of the first plate-shaped portion 41A. In other words, when viewed from the short-side direction of the first plate-shaped portion 41A, the fixing holes 43 in the front row and the fixing holes 43 in the rear row are arranged alternately. The fixing holes 43 penetrate the first plate-shaped portion 41A in the thickness direction, but do not have to penetrate therethrough.

[0083] The first position fixing part 42A is inserted into one fixing hole 43 selected from the multiple fixing holes 43, and is fixed to the second housing 20. The first position fixing part 42A is configured with a so-called thumb screw. The first position fixing part 42A fixes the first connection part 4A to the second housing 20 by inserting a shaft part (male thread part) of the thumb screw into the fixing hole 43 and screwing the shaft part into the female thread part 2052 of the second housing 20 (right side plate 205).

[0084] The second connection part 4B has a second fixing part and an attachment piece 40. The second fixing part can fix the first housing 12 at any rotation angle within the rotation range of the first housing 12 relative to the second housing 20. Specifically, the second fixing part has a second plate-shaped part 41B and a second position fixing part 42B. The second plate-shaped part 41B is provided with an elongated hole 44 whose longitudinal direction is the rotation direction of the first housing 12 (see FIG. 2). The elongated hole 44 penetrates the second plate-shaped part 41B in the thickness direction, but does not have to penetrate therethrough. The attachment piece 40 protrudes in the thickness direction of the second plate-shaped part 41B from the tip (upper end) of the second plate-shaped part 41B.

[0085] The second position fixing part 42B is inserted into the elongated hole 44 and fixed to the second housing 20. The second position fixing part 42B is composed of a thumb screw. The second position fixing part 42B fixes the second connection part 4B to the second housing 20 by inserting a shaft part (male thread part) of the thumb screw into the elongated hole 44 and screwing the shaft part into the female thread part 2042 of the second housing 20 (left side plate 204).

[0086] Here, the first plate-shaped portion 41A and the second plate-shaped portion 41B have a scale portion 45 that indicates the rotation angle of the first housing 12 (light-emitting unit 1). The scale portion 45 of the first plate-shaped portion 41A is composed of grooves that are connected to every other adjacent fixing holes 43 among the multiple fixing holes 43 in the front row. The interval between each groove (scale portion 45) corresponds to a predetermined rotation angle (5 degrees) of the first housing 12 (light-emitting unit 1). The scale portion 45 of the second plate-shaped portion 41B is composed of two types of grooves, long and short, that are connected to the elongated holes 44 and are arranged alternately along the longitudinal direction of the elongated holes 44. The interval between the long groove and the short groove corresponds to half the interval of the scale portion 45 of the first plate-shaped portion 41A, specifically, to a rotation angle of 2.5 degrees of the first housing 12 (light-emitting unit 1). The grooves of the scale portion 45 penetrate the first plate-shaped portion 41A and the second plate-shaped portion 41B in the thickness direction, but they do not have to penetrate all the way through.

[0087] The pair of connection parts 4 (first connection part 4A and second connection part 4B) are attached to the first housing 12 by screwing each mounting piece 40 to the bottom wall 130 of the first housing 12 with two screws 46 (see Figure 2).

[0088] (2-5) Assembly of lighting equipment Next, a procedure for assembling the lighting device A1 will be described. However, the assembly procedure described below is only an example, and some steps may be replaced, omitted, or added.

[0089] First, the worker removes the cover 206 of the second housing 20 of the power supply unit 2 from the box 200. The worker inserts the multiple electric wires 212 drawn out from the first housing 12 into the protective part 5 already attached to the cover 206, and then fits the tip (upper end) of the protective part 5 into the through hole of the bottom wall 130 from which the electric wires 212 have been drawn. Then, the worker inserts the pin 33 into the first shaft cylinder 310 of the first mounting plate 31 attached to the first housing 12 and the second shaft cylinder 320 of the second mounting plate 32 attached to the cover 206, thereby rotatably connecting the first mounting plate 31 and the second mounting plate 32.

[0090] Next, the worker electrically connects the multiple electric wires 212 inserted through the protective section 5 to the output terminals of the six DC / DC converters 211 of the power supply circuit section 21, and then attaches the cover 206 to the box 200.

[0091] Finally, the worker mechanically connects the first housing 12 and the second housing 20 with the pair of connecting parts 4. Specifically, the worker screws the first position fixing part 42A, which has been inserted into one of the fixing holes 43 of the first connecting part 4A, into the female thread part 2052 of the right side plate 205. Similarly, the worker screws the second position fixing part 42B, which has been inserted into the elongated hole 44 of the second connecting part 4B, into the female thread part 2042 of the left side plate 204. With the above steps, the assembly of the lighting device A1 is completed.

[0092] (2-6) Adjusting the angle of the lighting device Next, a procedure for adjusting the angle of the illumination device A1 will be described.

[0093] First, the worker removes the first position fixing part 42A from the female thread part 2052 of the right side plate 205 and loosens the second position fixing part 42B. In this state, the first connection part 4A and the second connection part 4B are not fixed to the second housing 20, and the male thread part of the second position fixing part 42B is inserted into the elongated hole 44 of the second connection part 4B, so that the light-emitting unit 1 can rotate around the pins 33 of the pair of supports 3 as fulcrums.

[0094] Next, the worker holds the light-emitting unit 1 with one or both hands, rotates the light-emitting unit 1 to a desired angle while checking the scale portion 45, and then tightens the second position fixing portion 42B. In this state, the light-emitting unit 1 is temporarily fixed to the second housing 20 by the second connecting portion 4B.

[0095] Finally, the worker screws the first position fixing portion 42A into one of the two female thread portions 2052 provided on the right side plate 205 that overlaps with one of the fixing holes 43 of the first connection portion 4A.

[0096] Through the above steps, the angle adjustment of the illumination device A1 is completed.

[0097] (3) Modifications of the embodiment Next, some modified examples of the lighting device A1 according to the embodiment will be described. However, the basic configuration of the lighting device A1 in each modified example described below is common to the basic configuration of the lighting device A1 according to the embodiment. Therefore, the same reference numerals will be used to designate configurations common to the basic configuration of the lighting device A1 according to the embodiment, and illustrations and descriptions will be omitted as appropriate. In the following description, "substantially common configuration" means a configuration that is somewhat different in shape, size, etc., but has a common function. In addition, each modified example described below can be appropriately combined with the embodiment and other modified examples.

[0098] (3-1) Variation 1 The lighting device A1 of the first modification is characterized by the size of the light-emitting unit 1. As shown in Fig. 7, the light-emitting unit 1 of the first modification has a shorter longitudinal length dimension, approximately half that of the light-emitting unit 1 of the embodiment. Therefore, the light-emitting unit 1 of the first modification accommodates one light source module and two lens blocks in a first housing 12 that is half the length of the first housing 12 of the embodiment.

[0099] (3-2) Variation 2 The illumination device A1 of the second modification is a so-called upper horizon light that is suspended from a hanging pipe P1 (also called a baton) and irradiates light from above onto the horizon surface (see FIG. 8). The illumination device A1 of the second modification is different from the illumination device A1 of the embodiment in the structure of the left side plate 204 and the right side plate 205 of the second housing 20.

[0100] The left side plate 204 and the right side plate 205 in the second modification are provided with mounting pieces 2043, 2053 at their respective ends (upper ends in FIG. 8). A pair of screw insertion holes 2044 penetrate the mounting piece 2043 of the left side plate 204. The pair of screw insertion holes 2044 are elongated holes whose axial direction coincides with the longitudinal direction (front-rear direction) of the mounting piece 2043, and are arranged at a distance along the longitudinal direction of the mounting piece 2043. However, although not shown in the figure, a pair of screw insertion holes consisting of elongated holes also penetrates the mounting piece 2053 of the right side plate 205 so as to be aligned at a distance along the longitudinal direction.

[0101] Thus, the lighting device A1 of the second modification is attached to the hanging pipe P1 using a so-called U-bolt 207. The U-bolt 207 is a U-shaped bolt having male threads at both ends (see FIG. 8). That is, the male threads at both ends of the U-bolt 207 are inserted into the pair of screw insertion holes 2044, respectively, and two nuts 208 are fastened to the male threads, thereby attaching the U-bolt 207 to the mounting pieces 2043, 2053. Then, the two U-bolts 207 are hooked onto the hanging pipe P1, whereby the lighting device A1 of the second modification is suspended from the hanging pipe P1.

[0102] Here, the lighting device A1 of the second modification includes a light shielding unit 6. The light shielding unit 6 includes a rectangular first light shielding plate 61, a pair of second light shielding plates 62, and a pair of reflecting plates 63. The pair of second light shielding plates 62 are each formed in a trapezoidal shape and protrude forward from both ends of the first light shielding plate 61 in the longitudinal direction. The first light shielding plate 61 and the pair of second light shielding plates 62 are integrally formed by bending a metal plate such as an aluminum plate. The first light shielding plate 61 and the pair of second light shielding plates 62 are painted with a matte black paint.

[0103] Each of the pair of reflectors 63 is formed in a rectangular flat plate shape using a plate material made of synthetic resin or metal. The pair of reflectors 63 has a very high visible light reflectance on its surface due to a mirror finish or white coating. The pair of reflectors 63 are attached to the front surface of the first light shielding plate 61. That is, the pair of reflectors 63 can improve the light extraction efficiency by reflecting the light attenuated by the first light shielding plate 61 and the second light shielding plate 62 toward the front (horizon surface). However, in the lighting device A1 of the modified example 2, instead of providing the reflector 63, the front surface of the first light shielding plate 61 (the surface facing the light emitting unit 1) may be painted white.

[0104] The light-shielding unit 6 is attached to the illumination device A1 (light-emitting unit 1) by fastening the pair of second light-shielding plates 62 to the right end cover 14R and the left end cover 14L of the light-emitting unit 1 with screws.

[0105] The lighting device A1 of the first modification includes the light blocking unit 6, and thus can suppress light leaking toward the audience seats or the camera facing the cyclorama surface.

[0106] (3-3) Variation 3 In the illumination device A1 of the modified example 3, the light-emitting unit 1 in the illumination device A1 of the modified example 2 is replaced with the light-emitting unit 1 in the illumination device A1 of the modified example 1 (see FIG. 9).

[0107] The lighting device A1 of variant example 3 also has a shading unit 6. However, the shading unit 6 in variant example 3 differs in that the longitudinal dimension of the first shading plate 61 is approximately half that of the first shading plate 61 in variant example 2, and there is only one reflecting plate 63 attached to the first shading plate 61.

[0108] (4) Lighting control system embodiment A lighting control system C1 according to an embodiment (hereinafter, abbreviated as lighting control system C1) includes a plurality of lighting devices A1 and a control device B1 (see FIG. 10). However, the lighting control system C1 may include only one lighting device A1.

[0109] The lighting devices A1 are communicatively connected to a control device B1 in a daisy chain manner via a communication cable X1.

[0110] The control device B1 transmits a DMX signal to the lighting device A1 via the communication cable X1. However, the control device B1 can select a target lighting device A1 by specifying a DMX address assigned to the multiple lighting devices A1 and transmit the DMX signal to the selected lighting device A1.

[0111] The control device B1 used for lighting in a photography studio and stage lighting is generally called a dimming console. The dimming console (control device B1) is equipped with input devices such as a touch panel, a key fader, etc., and generates control commands to turn on / off, dim, and adjust the color of the lighting device A1 based on the input received by the input device, converts the generated control commands into DMX signals, and transmits them to each lighting device A1. Each lighting device A1 obtains control commands from the DMX signals received from the control device B1, and turns on / off, dims, and adjusts the color of the light-emitting unit 1 by adjusting the DC current supplied from the power supply unit 2 according to the obtained control commands.

[0112] (5) Advantages of the embodiment In the lighting device A1 (including the lighting device A1 according to the modified example, the same applies below), one end (front end) of the first housing 12 is rotatably supported on the second housing 20 by the support part 3 as described above. Therefore, the lighting device A1 can eliminate the need for a space between the rotation axis (hinge pin 33) and the second housing 20 for rotating the first housing 12. Therefore, the lighting device A1 can shorten the distance from the second housing 20 to the first housing 12 when the first housing 12 is in the most reclined state, compared to the conventional example described in Patent Document 1 (see Figs. 3A-3D and 5). Moreover, in the lighting device A1, the other end (rear end) of the first housing 12 and the second housing 20 are mechanically connected by the connection part 4, so that the first housing 12 can be reliably fixed to the second housing 20. As a result, the lighting device A1 can be easily made low-profile. Reducing the height of the lighting device A1 allows for a reduction in packaging materials (cardboard boxes, cushioning materials, etc.) required when the lighting device A1 manufactured in a factory is shipped. In addition, reducing the height of the lighting device A1 allows for a reduction in the size of the cardboard boxes used to package the lighting device A1, which can reduce the cost of transporting the lighting device A1.

[0113] Here, the connection unit 4 has a fixing portion that fixes the first housing 12 to the second housing 20 within a rotation range of the first housing 12 relative to the second housing 20. The fixing portion is configured to fix the first housing 12 to the second housing 20 by screwing the shaft portions of thumb screws (first position fixing portion 42A, second position fixing portion 42B) into female screw portions 2042, 2052 provided on the second housing 20. In this manner, the lighting device A1 fixes the other end of the first housing 12, which is rotatable around one end as a fulcrum, to the second housing 20 by the fixing portion, so that the first housing 12 can be reliably fixed to the second housing 20.

[0114] Furthermore, the lighting device A1 is capable of fixing the first housing 12 to the second housing 20 by a fixing portion at every predetermined rotation angle (2.5 degrees in this embodiment) within the rotation range of the first housing 12. This allows the lighting device A1 to easily adjust the first housing 12 to a desired angle.

[0115] Furthermore, the lighting device A1 includes a first connecting portion 4A and a second connecting portion 4B in the connecting portion 4. The first connecting portion 4A and the second connecting portion 4B mechanically connect the second housing 20 to the first housing 12 in the axial direction (rotational axis direction) of the rotation axis (pin 33 of the hinge), that is, at both ends (first end and second end) in the longitudinal direction (left-right direction) of the second housing 20. Specifically, the first connecting portion 4A mechanically connects the right end of the second housing 20 to the first housing 12, and the second connecting portion 4B mechanically connects the left end of the second housing 20. Since the lighting device A1 is configured as described above, the mechanical connection strength of the first housing 12 to the second housing 20 can be improved compared to a case in which the first housing 12 and the second housing 20 are mechanically connected by a single connecting portion.

[0116] Here, the first connection part 4A has a first fixing part capable of fixing the first housing 12 at every predetermined rotation angle (2.5 degrees) within the rotation range of the first housing 12 relative to the second housing 20. The second connection part 4B has a second fixing part capable of fixing the first housing 12 at every arbitrary rotation angle within the rotation range. In other words, the lighting device A1 can fix the first housing 12 at an arbitrary rotation angle by the second fixing part even when the first fixing part is in a free state (a state in which the first housing 12 is not fixed to the second housing 20). As a result, the lighting device A1 can easily adjust the rotation angle of the first housing 12 relative to the second housing 20.

[0117] The first fixing portion has a first plate-shaped portion 41A and a first position fixing portion 42A (see FIG. 2). The first plate-shaped portion 41A has a rotation direction of the first housing 12 as its longitudinal direction, and is provided with a plurality of fixing holes 43 along the longitudinal direction. The first position fixing portion 42A is inserted into one fixing hole 43 selected from the plurality of fixing holes 43, and is fixed to the second housing 20 (internal thread portion 2042). The second fixing portion has a second plate-shaped portion 41B and a second position fixing portion 42B (see FIG. 2). The second plate-shaped portion 41B has an elongated hole 44 with the rotation direction as its longitudinal direction. The second position fixing portion 42B is inserted into the elongated hole 44, and is fixed to the second housing 20 (internal thread portion 2052).

[0118] Thus, with the lighting device A1, the first housing 12 can be rotated with the first position fixing portion 42A removed and the second position fixing portion 42B inserted into the elongated hole 44, and the first housing 12 can be temporarily fixed to the second housing 20 by fixing the second position fixing portion 42B to the second housing 20 (the internal thread portion 2052). As a result, with the lighting device A1, the rotation angle of the first housing 12 relative to the second housing 20 can be further easily adjusted.

[0119] Incidentally, the lighting device A1 has a scale portion 45 indicating a rotation angle on at least one of the first plate-shaped portion 41A and the second plate-shaped portion 41B of the connection portion 4 (see FIG. 2). Therefore, when adjusting the rotation angle of the first housing 12, the lighting device A1 can rotate the first housing 12 to a desired angle while checking the scale portion 45, and then temporarily fix the first housing 12 to the second housing 20 by the second connection portion 4B by tightening the second position fixing portion 42B. Therefore, by providing the scale portion 45 on at least one of the first plate-shaped portion 41A and the second plate-shaped portion 41B, the lighting device A1 can simplify the work of adjusting the first housing 12 to a desired rotation angle.

[0120] The scale portion 45 is a groove connected to at least one of the multiple fixing holes 43 and the long holes 44 (see FIG. 2). Thus, compared to a case where a sticker with a printed scale is used as the scale portion, the lighting device A1 uses a groove as the scale portion 45, which makes it less likely for the scale portion 45 to become smudged. As a result, the lighting device A1 improves the visibility of the scale portion 45 and further simplifies the task of adjusting the first housing 12 to a desired rotation angle.

[0121] Incidentally, in the illumination device A1, when the rotation angle is smallest, a plane including the rotation axis (pin 33) of the support part 3 and the first and second position fixing parts 42A and 42B (female thread parts 2042) is parallel to a bottom surface (bottom surface of the bottom plate 201) opposite to a surface (upper surface of the cover 206) facing the first housing 12 of the second housing 20 (see FIG. 5). The rotation angle represents an angle formed between the bottom surface of the bottom plate 201 of the second housing 20 and the bottom surface of the bottom wall 130 of the first housing 12. Therefore, the smallest rotation angle is 0 degrees where the virtual plane Q1 and the bottom surface of the bottom plate 201 are parallel (see FIG. 5).

[0122] Thus, since the lighting device A1 is configured as described above, it is possible to achieve a further reduction in height by, for example, fixing the first housing 12 in a state in which the rotation angle is smallest when not in use.

[0123] Moreover, the lighting device A1 has a support portion 3 configured with a hinge. The hinge has a pair of blades (first attachment plate 31, second attachment plate 32) having one or more shaft tubes (first shaft tube 310, second shaft tube 320), and a shaft (pin 33) inserted into the first shaft tube 310 and the second shaft tube 320. The first attachment plate 31 is screwed to the first housing 12, and the second attachment plate 32 is screwed to the second housing 20 (see FIGS. 2 and 5).

[0124] Thus, when assembling the lighting device A1, the first mounting plate 31 and the second mounting plate 32 are separated by removing the pin 33. Then, after the first mounting plate 31 is attached to the first housing 12 and the second mounting plate 32 is attached to the second housing 20, the hinge is assembled by inserting the pin 33 into the first shaft tube 310 and the second shaft tube 320. In other words, by configuring the support part 3 as a hinge, the lighting device A1 can improve the workability of attaching the support part 3 to the first housing 12 and the second housing 20.

[0125] Furthermore, the lighting device A1 includes a power supply path (electric wire 212) from the power supply circuit section 21 to the light source module 10, and a cylindrical protective section 5 through which the electric wire 212 is inserted (see FIG. 2). The electric wire 212 and the protective section 5 are provided at one end (front end) of the first housing 12 (see FIGS. 2 and 5). That is, the lighting device A1 protects the electric wire 212 with the protective section 5 by inserting the electric wire 212 into the cylindrical protective section 5. As a result, the lighting device A1 can prevent the electric wire 212 from being pinched between the first housing 12 and the second housing 20.

[0126] Here, the protective part 5 is formed to be expandable and contractable along the length direction of the electric wire 212. That is, the protective part 5 is constituted by a bushing made of a circular tubular synthetic resin molded body having a bellows-shaped peripheral wall, and is expandable and contractable in the axial direction. One end (lower end) of the protective part 5 in the axial direction is fitted into a through hole provided in the second housing 20, and the other end (upper end) of the protective part 5 in the axial direction is fitted into a through hole provided in the first housing 12. The protective part 5 thus configured is expandable and contractable according to the rotation angle of the first housing 12 relative to the second housing 20, so that the electric wire 212 inserted therein can always be protected. Therefore, the lighting device A1 can more reliably prevent the electric wire 212 from being pinched between the first housing 12 and the second housing 20.

[0127] Incidentally, the second housing 20 has a recess on the surface (upper surface) facing the first housing 12 (see FIG. 5). This recess is formed by lowering the first cover part 2061 of the cover 206 of the second housing 20 by one step with respect to the second cover part 2062 of the cover 206. The recess can accommodate at least a part of the first housing 12, specifically, the protruding part 135 of the first housing 12. That is, the lighting device A1 accommodates the protruding part 135 of the first housing 12 to which the first mounting plate 31 is attached in the recess by attaching the second mounting plate 32 of the support part 3 to the hinge mounting part 2063 of the cover 206 (see FIG. 5). As a result, the lighting device A1 can be further reduced in height.

[0128] Here, when the rotation angle of the first housing 12 relative to the second housing 20 is at its smallest (when the rotation angle is 0 degrees), a gap 121 is formed between the rear end of the first housing 12 and the second housing 20 facing the rear end (see FIG. 5). That is, when the lighting device A1 rotates the light-emitting unit 1 (first housing 12), the first housing 12 can be supported by a finger inserted through the gap 121. Therefore, the lighting device A1 can improve the workability of adjusting the rotation angle of the first housing 12 (light-emitting unit 1).

[0129] It is preferable that the gap 121 is, for example, 8 mm or more in the vertical distance between the first housing 12 and the second housing 20. By setting the gap 121 between the rear end of the first housing 12 at a rotation angle of 0 degrees and the second housing 20 facing the rear end to the above size (for example, 8 mm or more), the lighting device A1 makes it easy to insert a finger into the gap 121 and hook the finger on the rear end of the first housing 12. Therefore, the lighting device A1 can further improve the workability of adjusting the rotation angle of the first housing 12 (light-emitting unit 1).

[0130] (6) Summary The illumination device (A1) according to the first aspect of the present disclosure includes a light-emitting unit (light source module 10) that emits light, a first housing (12), a power supply circuit unit (21), a second housing (20), a support unit (3), and a connection unit (4). The first housing (12) has an opening (opening 134) that allows light to pass through and houses the light-emitting unit. The power supply circuit unit (21) supplies power to the light-emitting unit. The second housing (20) houses the power supply circuit unit (21). The support unit (3) supports the first housing (12) rotatably relative to the second housing (20). The connection unit (4) mechanically connects the first housing (12) and the second housing (20). The support unit (3) supports the first housing (12) rotatably with one end of the first housing (12) as a fulcrum. The connection part (4) mechanically connects the other end of the first housing (12) to the second housing (20).

[0131] The lighting device (A1) according to the first aspect can easily be made low-profile because it does not require a space between the rotation shaft and the second housing (20) for rotating the first housing (12).

[0132] An illumination device (A1) according to a second aspect of the present disclosure can be realized by combining with the first aspect. In the illumination device (A1) according to the second aspect, it is preferable that the connection part (4) has a fixing part that fixes the first housing (12) to the second housing (20) within a rotation range of the first housing (12) relative to the second housing (20).

[0133] The lighting device (A1) according to the second aspect can reliably fix the first housing (12) to the second housing (20).

[0134] The lighting device (A1) according to the third aspect of the present disclosure can be realized by combining it with the second aspect. In the lighting device (A1) according to the third aspect, it is preferable that the fixing part is capable of fixing the first housing (12) at each predetermined rotation angle within the rotation range.

[0135] In the lighting device (A1) according to the third aspect, the first housing (12) can be easily adjusted to a desired angle.

[0136] An illumination device (A1) according to a fourth aspect of the present disclosure can be realized by combining with any one of the first to third aspects. In the illumination device (A1) according to the fourth aspect, the connection part (4) preferably includes a first connection part (4A) and a second connection part (4B). The first connection part (4A) preferably mechanically connects the first housing (12) and the second housing (20) at a first end of the second housing (20) in the rotation axis direction of the first housing (12). The second connection part (4B) preferably mechanically connects the first housing (12) and the second housing (20) at a second end of the second housing (20) opposite to the first end in the rotation axis direction.

[0137] The lighting device (A1) according to the fourth aspect can improve the mechanical connection strength of the first housing (12) to the second housing (20) compared to a case in which the first housing (12) and the second housing (20) are mechanically connected by a single connection part.

[0138] An illumination device (A1) according to a fifth aspect of the present disclosure can be realized by combining with the fourth aspect. In the illumination device (A1) according to the fifth aspect, the first connection part (4A) preferably has a first fixing part capable of fixing the first housing (12) at each predetermined rotation angle within a rotation range of the first housing (12) relative to the second housing (20). The second connection part (4B) preferably has a second fixing part capable of fixing the first housing (12) at each arbitrary rotation angle within the rotation range.

[0139] In the lighting device (A1) according to the fifth aspect, the rotation angle of the first housing (12) relative to the second housing (20) can be easily adjusted.

[0140] An illumination device (A1) according to a sixth aspect of the present disclosure may be realized by combining with the fifth aspect. In the illumination device (A1) according to the sixth aspect, the first fixing portion preferably has a first plate-shaped portion (41A) and a first position fixing portion (42A). The first plate-shaped portion (41A) preferably has a rotation direction of the first housing (12) as a longitudinal direction and is provided with a plurality of fixing holes (43) along the longitudinal direction. The first position fixing portion (42A) preferably is inserted into one fixing hole (43) selected from the plurality of fixing holes (43) and is fixed to the second housing (20). The second fixing portion preferably has a second plate-shaped portion (41B) and a second position fixing portion (42B). The second plate-shaped portion (41B) preferably has an elongated hole (44) with the rotation direction as a longitudinal direction. The second position fixing portion (42B) is preferably inserted into the slot (44) and fixed to the second housing (20).

[0141] In the lighting device (A1) according to the sixth aspect, the rotation angle of the first housing (12) relative to the second housing (20) can be adjusted more easily.

[0142] An illumination device (A1) according to a seventh aspect of the present disclosure can be realized by combining with the sixth aspect. In the illumination device (A1) according to the seventh aspect, it is preferable that at least one of the first plate-shaped portion (41A) and the second plate-shaped portion (41B) has a scale portion (45) that indicates a rotation angle.

[0143] The lighting device (A1) according to the seventh aspect has a scale portion (45) on at least one of the first plate-shaped portion (41A) and the second plate-shaped portion (41B), thereby simplifying the task of adjusting the first housing (12) to a desired rotation angle.

[0144] An illumination device (A1) according to an eighth aspect of the present disclosure can be realized by combining with the seventh aspect. In the illumination device (A1) according to the eighth aspect, it is preferable that the scale portion (45) is a groove connected to at least one of the plurality of fixing holes (43) and the elongated hole (44).

[0145] The illumination device (A1) according to the eighth aspect can improve the visibility of the scale portion (45) and further simplify the operation of adjusting the first housing (12) to a desired rotation angle.

[0146] The lighting device (A1) according to a ninth aspect of the present disclosure can be realized by combining with any one of the aspects 6 to 8. In the lighting device (A1) according to the ninth aspect, in a state where the rotation angle is smallest, it is preferable that a surface including the rotation axis (pin 33) and the first position fixing portion (42A) of the support portion (3) is parallel to a bottom surface of the second housing (20) opposite to a surface facing the first housing (12).

[0147] The lighting device (A1) according to the ninth aspect can be made even thinner by, for example, fixing the first housing (12) at the smallest rotation angle when not in use.

[0148] An illumination device (A1) according to a tenth aspect of the present disclosure can be realized by combining with any one of the first to ninth aspects. In the illumination device (A1) according to the tenth aspect, the support part (3) preferably includes a hinge. The hinge preferably has a pair of blades (first mounting plate 31, second mounting plate 32) having one or more shaft tubes (first shaft tube 310, second shaft tube 320) and a shaft rod (pin 33) inserted into the shaft tube. It is preferable that one of the pair of blades (first mounting plate 31) is attached to the first housing (12), and the other of the pair of blades (second mounting plate 32) is attached to the second housing (20).

[0149] The lighting device (A1) according to the tenth aspect can improve the efficiency of the installation work of the support part (3) to the first housing (12) and the second housing (20).

[0150] An illumination device (A1) according to an eleventh aspect of the present disclosure can be realized by combining with any one of the first to tenth aspects. The illumination device (A1) according to the eleventh aspect preferably further includes a power supply path (electric wire 212) from the power supply circuit section (21) to the light-emitting section, and a cylindrical protective section (5) through which the power supply path is inserted. The power supply path and the protective section (5) are preferably provided at one end of the first housing (12).

[0151] The lighting device (A1) according to the eleventh aspect can prevent the power supply path from being pinched between the first housing (12) and the second housing (20).

[0152] An illumination device (A1) according to a twelfth aspect of the present disclosure can be realized in combination with the eleventh aspect. In the illumination device (A1) according to the twelfth aspect, it is preferable that the protection part (5) is formed to be expandable and contractible along the length direction of the power supply path.

[0153] The lighting device (A1) according to the twelfth aspect can more reliably prevent the power supply path from being pinched between the first housing (12) and the second housing (20).

[0154] An illumination device (A1) according to a thirteenth aspect of the present disclosure can be realized by combining with any one of the first to twelfth aspects. In the illumination device (A1) according to the thirteenth aspect, it is preferable that the second housing (20) has a recess on a surface facing the first housing (12). It is preferable that the recess can accommodate at least a part of the first housing (12).

[0155] The lighting device (A1) according to the thirteenth aspect can be made even thinner.

[0156] An illumination device (A1) according to a fourteenth aspect of the present disclosure can be realized by combining with any one of the first to thirteenth aspects. In the illumination device (A1) according to the fourteenth aspect, it is preferable that a gap (121) is formed between the other end of the first housing (12) and the second housing (20) facing the other end when the rotation angle of the first housing (12) relative to the second housing (20) is at its smallest.

[0157] The lighting device (A1) according to the fourteenth aspect can improve the workability of adjusting the rotation angle of the first housing (12).

[0158] An illumination device (A1) according to a fifteenth aspect of the present disclosure can be realized in combination with the fourteenth aspect. In the illumination device (A1) according to the fifteenth aspect, the gap (121) is preferably at least 8 mm or more.

[0159] The lighting device (A1) according to the fifteenth aspect can further improve the ease of adjusting the rotation angle of the first housing (12).

[0160] A lighting control system (C1) according to a sixteenth aspect of the present disclosure includes a lighting device (A1) according to any one of the first to fifteenth aspects, and a control device (B1) that controls the lighting device (A1).

[0161] The lighting control system (C1) according to the sixteenth aspect includes the lighting device (A1) according to any one of the first to fifteenth aspects, and therefore can easily reduce the height of the lighting device (A1). [Explanation of symbols]

[0162] A1 Lighting equipment B1 Control device C1 Lighting Control System 3 Support part 4 Connection 4A 1st connection 4B Second connection part 5 Protective part 10 Light source module (light emitting part) 12 1st cabinet 20 Second cabinet 21 Power supply circuit section 31 First mounting plate 32 Second mounting plate 33 pin 42A 1st position fixing part 42B 2nd position fixing part 43 Fixing hole 44 Slot 45 Scale 121 void 134 Opening (Aperture) 212 Electric wire (power supply line)

Claims

1. A light emitting unit that emits light; a first housing having an opening through which the light passes and housing the light emitting unit; a power supply circuit section for supplying power to the light emitting section; a second housing that houses the power supply circuit unit; a support portion that rotatably supports the first housing relative to the second housing; a connection portion that mechanically connects the first housing and the second housing; Equipped with the support portion supports the first housing rotatably around one end of the first housing as a fulcrum; The connection portion mechanically connects the other end of the first housing to the second housing. Lighting equipment.

2. the connecting portion has a fixing portion that fixes the first housing to the second housing within a rotation range of the first housing relative to the second housing, 2. The lighting device according to claim 1.

3. the fixing portion is capable of fixing the first housing at each predetermined rotation angle within the rotation range, 3. The lighting device according to claim 2.

4. The connection portion includes a first connection portion and a second connection portion, the first connection portion mechanically connects the first housing and the second housing at a first end of the second housing in a rotation axis direction of the first housing, the second connection portion mechanically connects the first housing to the second housing at a second end of the second housing opposite to the first end in the rotation axis direction.

2. The lighting device according to claim 1.

5. the first connection portion has a first fixing portion capable of fixing the first housing at each predetermined rotation angle within a rotation range of the first housing relative to the second housing, the second connection portion has a second fixing portion capable of fixing the first housing at each arbitrary rotation angle within the rotation range, 5. The lighting device according to claim 4.

6. The first fixing portion is a first plate-shaped portion having a rotation direction of the first housing as a longitudinal direction and having a plurality of fixing holes provided along the longitudinal direction; a first position fixing portion that is inserted into one fixing hole selected from the plurality of fixing holes and is fixed to the second housing; having The second fixing portion is A second plate-shaped portion having a long hole with the rotation direction as a longitudinal direction thereof; a second position fixing portion that is inserted into the elongated hole and fixed to the second housing; having 6. The lighting device according to claim 5.

7. At least one of the first plate-shaped portion and the second plate-shaped portion has a scale portion that indicates the rotation angle.

7. The lighting device according to claim 6.

8. The scale portion is a groove connected to at least one of the plurality of fixing holes and the long hole.

8. The lighting device according to claim 7.

9. When the rotation angle is smallest, a surface including the rotation axis of the support portion and the first position fixing portion is parallel to a bottom surface of the second housing opposite to a surface of the second housing facing the first housing. An illumination device according to any one of claims 6 to 8.

10. The support portion includes a hinge. The hinge includes a pair of blades having one or more shaft tubes, and a shaft inserted into the shaft tubes, One of the pair of wings is attached to the first housing, and the other of the pair of wings is attached to the second housing. An illumination device according to any one of claims 1 to 8.

11. a power supply path from the power supply circuit unit to the light emitting unit; A cylindrical protective portion through which the power supply path is inserted; Further comprising: The power supply path and the protection section are provided at the one end of the first housing. An illumination device according to any one of claims 1 to 8.

12. The protection portion is formed to be expandable and contractible along the length direction of the power supply path.

12. The lighting device of claim 11.

13. the second housing has a recess on a surface facing the first housing, The recess is capable of accommodating at least a portion of the first housing. An illumination device according to any one of claims 1 to 8.

14. When the rotation angle of the first housing relative to the second housing is smallest, a gap is formed between the other end of the first housing and the second housing facing the other end. An illumination device according to any one of claims 1 to 8.

15. The gap is at least 8 mm or more.

15. The lighting device of claim 14.

16. A lighting device according to any one of claims 1 to 8; A control device for controlling the lighting device; Equipped with Lighting control system.

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