JP2011049123A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system capable of achieving a direct lighting and indirect lighting. <P>SOLUTION: A heat sink 61 is fixed tight on a unit body 11 at an upper-side opening of the unit body 11. On the lower face of the heat sink 61, there is provided an LED module 71 fixed so that the light-emitting diode may be directed downward. A translucent plate 14 is fixed on the opening of a convex part 111 side. On the upper face of the unit body 11, there are arranged mounting pedestals 51, ... separated with a certain interval along a length direction with the opening interposed. Reflection plates 41, 42 are installed on the mounting pedestals 51, face to face, with the opening interposed. Further, LED modules 31, 32 are fixed on each of the reflection plates 41, 42 on the mounting pedestals 51. Translucent plates 21, 22 of a lengthy shape are fixed on an upper cover 12 of the body. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an illumination device that can realize indirect illumination and direct illumination.

  In recent years, an illuminating device using a light emitting diode as a light source instead of a fluorescent lamp or an incandescent lamp has been developed as being excellent in power saving and long life. Such an illuminating device has a structure in which a substrate (LED module) on which a plurality of light emitting diodes (LEDs) are mounted, a drive circuit (power supply circuit) for driving the LEDs, and the like are mounted in the lamp.

  For example, a rectangular substrate, a plurality of LED chips of different colors mounted in a line along the longitudinal direction of the substrate, and a substantially semi-cylindrical transparent formed so as to integrally cover the entire LED chip An illumination device that includes a resin portion, has an LED light source device that has excellent heat dissipation even when integrated at a high density, and can take a large amount of light, and reflects light from the LED light source device with a reflecting plate is disclosed (for example, Patent Document 1).

JP 2002-299697 A

  However, in the case of the conventional lighting device as disclosed in Patent Document 1, it is also possible to perform indirect lighting by arranging the lighting device so as to irradiate the ceiling or wall of the room with the light reflected by the reflecting plate. However, when the lighting device is arranged in such a manner, since there is no light irradiated toward the desk surface or floor surface of the room, the illuminance on the desk surface or floor surface cannot be ensured. In addition, when the lighting device is arranged with the light reflected by the reflecting plate directed toward the desk surface or the floor surface, indirect illumination in the room cannot be realized.

  This invention is made | formed in view of such a situation, and it aims at providing the illuminating device which can implement | achieve direct illumination and indirect illumination.

  An illuminating device according to the present invention, in an illuminating device provided with a light source unit, enables use of light from the light source unit as indirect illumination and direct light from the light source unit as direct illumination. And a direct illumination unit.

  In this invention, an illuminating device is provided with the indirect illumination part which can use the light from a light source part as indirect illumination, and the direct illumination part which can use the light from a light source part as direct illumination. Thereby, indirect illumination and direct illumination are realizable.

  The illuminating device according to the present invention includes a box-shaped illuminating device main body incorporating the light source unit, and the indirect illuminating unit is a light emitting surface that emits light provided on one surface of the illuminating device main body, The illumination unit is another light emitting surface provided on the other surface.

  In the present invention, the indirect illumination unit is a light emitting surface that emits light provided on one surface of the illumination device main body, and the direct illumination unit is another light emitting surface provided on the other surface of the illumination device main body. is there. For example, when the light emitting surface is arranged on the ceiling side, indirect illumination can be obtained by irradiating the ceiling surface with light emitted from the light emitting surface. In addition, since light from other light emitting surfaces is irradiated on the side opposite to the ceiling surface, it is possible to irradiate a desk surface or a floor surface, and direct illumination can be obtained. Thereby, indirect illumination and direct illumination are realizable. The other surface is not limited to the surface opposite to the ceiling surface.

  In the illumination device according to the present invention, the indirect illumination unit is a first light emitting surface that emits light toward a ceiling surface or the like, and the direct illumination unit is a second light emitting in a direction different from the ceiling surface or the like. It is a light emitting surface.

  In the present invention, the indirect illumination unit is a first light emitting surface that emits light toward a ceiling surface or the like, and the direct illumination unit is a second light emitting surface that emits light in a direction different from the ceiling surface or the like. is there. As a result, the light from the indirect lighting unit is irradiated toward the ceiling surface and contributes to indirect lighting, and the light from the direct lighting unit is irradiated toward the desk surface and the floor surface and contributes to direct lighting. Illumination and direct illumination can be realized.

  The illumination device according to the present invention is characterized in that the amount of light emitted from the indirect illumination unit is larger than the amount of light emitted from the direct illumination unit.

  In the present invention, the amount of light emitted from the indirect illumination unit is greater than the amount of light emitted from the direct illumination unit. Thereby, for example, the illumination environment in a room can be mainly indirect illumination and direct illumination can be subordinate, and an illumination environment in which direct illumination is realized while making the entire room indirect illumination can be provided.

  The illumination device according to the present invention is characterized in that an area of the indirect illumination unit is larger than an area of the direct illumination unit.

  In the present invention, the area of the indirect illumination unit is larger than the area of the direct illumination unit. Thereby, for example, the illumination environment in a room can be mainly indirect illumination and direct illumination can be subordinate, and an illumination environment in which direct illumination is realized while making the entire room indirect illumination can be provided.

  In the illumination device according to the present invention, the illumination device main body has a long shape, and the indirect illumination unit has two light emitting surfaces facing each other with the long upper central portion of the illumination device main body in between. It is characterized by having.

  In the present invention, the illuminating device main body has an elongated shape, and the indirect illumination portion has two light emitting surfaces that are opposed to each other with the elongated upper central portion of the illuminating device main body in between. Even when the illuminating device main body is long, since the two light emitting surfaces are provided in a long shape with the central portion in between, the ceiling surface can be irradiated along the longitudinal direction of the illuminating device main body, and the ceiling Light can be irradiated over a wide area of the surface.

  The lighting device according to the present invention is characterized in that each of the light emitting surfaces is inclined so that a height dimension of the lighting device main body decreases from the upper center portion toward the long side edge portion. .

  In the present invention, each of the light emitting surfaces is inclined so that the height dimension of the illuminating device main body decreases from the upper center portion toward the long side edge portion. As a result, the light emitted from each of the light emitting surfaces is irradiated obliquely with respect to the vertical direction connecting the upper central portion and the ceiling surface, so that light can be irradiated over a wide range of the ceiling surface.

  The illuminating device according to the present invention is characterized in that the direct illuminating unit is provided in a long lower central portion of the illuminating device main body.

  In the present invention, the direct illuminating unit is provided in the long lower central portion of the illuminating device main body. Thereby, not only indirect illumination but also direct illumination can be provided.

  In the illumination device according to the present invention, the light source unit includes a first light source unit that emits light from the indirect illumination unit, and includes a first dimming unit that dims the first light source unit. It is characterized by.

  In this invention, a light source part has a 1st light source part which has a 1st light source part which light-emits light from an indirect illumination part, and light-controls a 1st light source part. As a result, when the lighting device is suspended from the ceiling surface, the illuminance and brightness of the ceiling surface can be adjusted even if the height to the ceiling surface changes. Lighting can be provided.

  In the illumination device according to the present invention, the light source unit includes a second light source unit that emits light from the direct illumination unit, and the second light source unit is dimmed separately from the first light source unit. The second light control unit is provided.

  In the present invention, the light source unit includes the second light source unit that emits light from the direct illumination unit, and the second light source unit that adjusts the second light source unit separately from the first light source unit. A light part is provided. As a result, it is possible to adjust the illuminance and brightness of the desk surface and floor surface while realizing the preferred indirect lighting, and to provide an illumination environment having both indirect lighting and direct lighting according to the user's preference it can.

  In the illumination device according to the present invention, the light source unit includes a first light source unit that emits light from the indirect illumination unit, and a second light source unit that emits light from the direct illumination unit. A toning unit for toning each of the first light source unit and the second light source unit is provided.

  In the present invention, the light source unit includes a first light source unit that emits light from the indirect illumination unit, and a second light source unit that emits light from the direct illumination unit, and the first light source unit and A toning unit for toning each of the second light source units is provided. For example, by adjusting the light source color to white, daylight color, light bulb color, etc., the color tone of indirect lighting and the color of direct lighting can be changed according to preference, providing an illumination environment according to user preference can do.

  In the illumination device according to the present invention, the light source unit includes a light emitting diode.

  In the present invention, the light source unit includes a light emitting diode. By using a light emitting diode (LED), the lighting device can be made thin, and the lighting device itself can be prevented from obstructing indirect lighting using the ceiling surface or the like.

  According to the present invention, it is possible to realize indirect illumination in a room by irradiating a ceiling surface or the like while ensuring illuminance on a desk surface or a floor surface, and it is possible to realize direct illumination and indirect illumination.

It is the disassembled perspective view seen from the lower side of the illuminating device which shows embodiment of this invention. It is the disassembled perspective view seen from the upper side of the illuminating device which shows embodiment of this invention. It is the top view seen from the lower side of the illuminating device which shows embodiment of this invention. It is the top view seen from the upper side of the illuminating device which shows embodiment of this invention. It is a side view of the illuminating device which shows embodiment of this invention. It is a longitudinal section of an illuminating device showing an embodiment of the invention. It is a block diagram which shows an example of the light control system of the illuminating device which shows embodiment of this invention. It is a block diagram which shows an example of the toning system of the illuminating device which shows embodiment of this invention.

  Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is an exploded perspective view seen from the lower side of the illumination device 100 showing the embodiment of the present invention, and FIG. 2 is an exploded perspective view seen from the upper side of the illumination device 100 showing the embodiment of the present invention. FIG. 3 is a plan view seen from the lower side of the lighting device 100 showing the embodiment of the present invention, and FIG. 4 is a plan view seen from the upper side of the lighting device 100 showing the embodiment of the present invention. FIG. 5 is a side view of the lighting device 100 showing the embodiment of the present invention, and FIG. 6 is a longitudinal sectional view of the lighting device 100 showing the embodiment of the present invention. Hereinafter, an illumination device that can be suspended from the ceiling will be described as an example of the illumination device 100. However, the illumination device 100 is not limited to the illumination device that is suspended from the ceiling, and is fixed to a wall or the like. Other forms of lighting devices may be used. Further, the upper side means the ceiling side in a state where the lighting device 100 is suspended from the ceiling, and the lower side means the side opposite to the ceiling side, that is, the floor surface side or the desk surface side.

  The illumination device 100 includes an indirect illumination unit that can use light from the light source unit as indirect illumination, and a direct illumination unit that can use light from the light source unit as direct illumination. As shown in FIG.1 and FIG.2, the illuminating device 100 is the illuminating device main body 1, the transparent translucent plates 21 and 22 as a 1st light emission surface (light emission surface) which is an indirect illumination part, and a 1st light source part. LED modules 31 and 32, reflectors 41 and 42, mounting base 51 for mounting the LED modules 31 and 32,..., LED module 71 as a second light source unit, heat radiation plate 61 for the LED module 71, directly A translucent translucent plate 14, a power supply unit 91, 92, side plates 81, 81, and the like are provided as a second light emitting surface (another light emitting surface) that is an illumination unit. That is, the indirect illumination unit is a first light emitting surface that emits light provided on one surface of the illumination device body 1, and the direct illumination unit is a second light emission surface provided on the other surface of the illumination device body 1. It is. The first light emitting surface is a light emitting surface that emits light toward a ceiling surface or a wall surface, and the second light emitting surface is a light emitting surface that emits light in a direction different from the ceiling surface or the like.

  The illuminating device main body 1 has a long box shape, and includes a metal unit main body 11, a main body upper cover 12, a main body lower cover 13, and the like. The unit main body 11, the main body upper cover 12, and the main body lower cover 13 are each painted in a required color (for example, baking painting). A main body upper cover 12 and a main body lower cover 13 are fixed to the unit main body 11 with screws or the like, and side plates 81 and 81 are attached to both ends.

  The unit main body 11 is a long plate shape, the upper side is substantially planar, the lower side is formed with a convex portion 111 along the longitudinal direction at the center, and the longitudinal section is substantially T-shaped. It has a structure that forms a shape. A long opening 112 that communicates with the upper side of the unit main body 11 is formed inside the convex portion 111.

  In the upper opening 112 of the unit main body 11, a heat radiating plate 61 having a size slightly larger than the size of the opening 112 is adhered and fixed to the unit main body 11. On the lower surface of the heat radiating plate 61, an LED module 71 having a size slightly smaller than the size of the opening 112 is attached so that the light emitting diode faces downward. The translucent plate 14 is attached to the opening 112 on the convex portion 111 side. Thereby, the light emitted from the LED module 71 passes through the translucent plate 14 and is irradiated to the outside.

  The main body lower cover 13 has a long plate shape, and has an opening 131 that matches the size of the convex portion 111 so that the convex portion 111 of the unit main body 11 can be inserted. The opening 131 communicates the upper side and the lower side of the main body lower cover 13. In addition, the lower surface of the main body lower cover 13 is configured with a curved surface gently curved in a convex shape from the central portion toward the long side edge so that the user can feel the beauty when viewed from below. It is. Further, both ends in the longitudinal direction of the main body lower cover 13 are formed in an arc shape. Thereby, a novel design-like impression can be given to the user.

  On the upper surface of the unit main body 11, mounting bases 51,... Are fixed at an appropriate distance along the longitudinal direction with an opening 112 therebetween. Reflecting plates 41 and 42 having a substantially L-shaped cross section are provided on the mounting base 51 with the opening 112 therebetween. In addition, a long LED module 31 is attached to the upper surface of the reflection plate 41, and a long LED module 32 is attached to the upper surface of the reflection plate 42.

  The main body upper cover 12 has a long plate shape, and two long openings 122 and 123 are formed along the longitudinal direction with the long top plate 121 interposed therebetween. The long translucent plate 21 can be fixed to the opening 122, and the long translucent plate 22 can be fixed to the opening 123. The translucent plates 21 and 22 are opposed to each other with the long top plate 121 interposed therebetween. Thereby, even when the lighting device 100 is long, the two light emitting surfaces are provided in a long shape with the top plate 121 in between, so that the ceiling surface is irradiated along the longitudinal direction of the lighting device 100. It is possible to irradiate light on a wide area of the ceiling surface.

  The light emitted from the LED module 31 is reflected directly or by the reflecting plate 41, passes through the light transmitting plate 21, and is irradiated to the outside. Similarly, the light emitted from the LED module 32 is reflected directly or by the reflecting plate 42 and passes through the light transmitting plate 22 and is irradiated to the outside.

  On the inner side of the main body upper cover 12, that is, on the back side of the top plate 121, power supply units 91 and 92 that supply necessary voltages and currents to the LED modules 31, 32, and 71 are attached. A commercial power supply is connected to the power supply units 91 and 92 via a power supply terminal block (not shown). Further, wiring (not shown) is provided between the power supply units 91 and 92 and the LED modules 31, 32 and 71.

  As described above, the lighting device 100 includes the light transmitting plates 21 and 22 as the first light emitting surfaces on one surface (upper side) of the lighting device main body 1 and the other surface (for example, the lower side which is the opposite surface). Since the translucent plate 14 as the second light emitting surface is provided on the ceiling side, when the translucent plates 21 and 22 are arranged on the ceiling side, the ceiling surface is irradiated with light emitted from the translucent plates 21 and 22 to perform indirect illumination. Obtainable. Moreover, since the light from the translucent plate 14 is irradiated on the side opposite to the ceiling surface, it is possible to irradiate the desk surface and the floor surface and to obtain direct illumination. Thereby, indirect illumination and direct illumination are realizable. The other surface described above is not limited to the surface opposite to the ceiling surface.

  Further, as shown in FIGS. 5 and 6, since the lighting device 100 can be suspended from the ceiling by the wire 17, the light emitted from the translucent plates 21 and 22 is irradiated toward the ceiling surface. Since it contributes to indirect illumination and the light from the translucent plate 14 is irradiated toward the desk surface or the floor surface and contributes to direct illumination, indirect illumination and direct illumination can be realized.

  The amount of light emitted from the LED modules 31 and 32 constituting the indirect illumination unit can be made larger than the amount of light emitted from the LED module 71 constituting the direct illumination unit. Thereby, for example, the illumination environment in a room can be mainly indirect illumination and direct illumination can be subordinate, and an illumination environment in which direct illumination is realized while making the entire room indirect illumination can be provided.

  Moreover, as shown in FIG.3 and FIG.4, the area of the translucent plates 21 and 22 which comprise an indirect illumination part can be made larger than the area of the translucent board 14 which comprises a direct illumination part. Thereby, for example, the illumination environment in a room can be mainly indirect illumination and direct illumination can be subordinate, and an illumination environment in which direct illumination is realized while making the entire room indirect illumination can be provided.

  In the example of FIG. 3, the translucent plate 14 has a configuration in which one central portion of the lighting device 100 is provided along the longitudinal direction, but the translucent plate 14 as the lower light emitting surface is limited to the example of FIG. 3. Instead of this, it is also possible to adopt a configuration in which a plurality of long translucent plates are arranged side by side in the short direction according to the usage environment of the lighting device 100 or the user's request. Further, the translucent plate 14 may be divided into a plurality of translucent plates and separated and arranged along the longitudinal direction. Thereby, not only indirect illumination but also direct illumination can be provided.

  In the example of FIG. 3, both end sides of the main body lower cover 13 are formed in a convex arc shape. However, the present invention is not limited to this. For example, one side is formed in a concave arc shape. . As a result, the convex arc-shaped end of the second lighting device 100 is aligned with the concave arc-shaped end of the first lighting device 100 so that the joint is not noticeable. The two lighting devices 100 can be arranged in a form connected in the longitudinal direction. In addition, since the concave arc-shaped end and the convex arc-shaped end are fitted, when a plurality of lighting devices 100 are connected and suspended from the ceiling, one lighting device 100 is caused for some reason. Even when it is shaken, the other lighting devices 100 are also shaken in conjunction with each other, so that the light emitting surfaces of the respective lighting devices 100 are shaken in the same direction. For this reason, the phenomenon that the direction of illumination varies in each illumination device 100 can be prevented.

  As shown in FIG. 6, each of the light-transmitting plates 21 and 22 is inclined so that the height dimension of the lighting device main body 1 decreases from the top plate 122 which is the upper central portion toward the long side edge portion 132. It is. Thereby, since the light emitted from each of the translucent plates 21 and 22 is irradiated obliquely with respect to the vertical direction connecting the top plate 122 and the ceiling surface, the light can be applied to a wide range of the ceiling surface. it can.

  Further, by using a light emitting diode (LED) as a light source of the lighting device 100, the lighting device 100 can be made thin. When the lighting device 100 is suspended from the ceiling, the lighting device 100 itself obstructs indirect lighting. Can be prevented.

  As shown in FIG. 3, the LED module 14 has, for example, four rectangular substrates arranged in a long shape. On each substrate, LED chips are mounted in two rows at a required interval. The LED chip used for the LED module 14 may be, for example, a white LED, a daylight color LED, a light bulb color LED, or a combination thereof.

  As shown in FIG. 4, the LED module 21 has, for example, four rectangular substrates arranged in a long shape. On each substrate, LED chips are mounted at required intervals in the vertical and horizontal directions. The LED chip used in the LED module 21 may be, for example, a white LED, a daylight color LED, a light bulb color LED, or a combination thereof. The LED module 22 has the same configuration as the LED module 21.

  By configuring each LED module as described above, the lighting device 100 can be dimmable, can be toned, or both dimming and toning can be performed. Hereinafter, the light adjustment method and the color adjustment method will be described.

  FIG. 7 is a block diagram showing an example of the light control method of the illumination device 100 according to the embodiment of the present invention. In addition to the LED modules 31, 32, and 71, the lighting device 100 includes a dimming interface unit 93, a control unit 94, a power supply circuit 95, a PWM dimming circuit 96 as a first dimming unit, and a second dimming unit. As a PWM dimming circuit 97. These circuits can be incorporated in the power supply units 91 and 92.

  The dimming interface unit 93 is, for example, a light receiving unit that receives an infrared signal from an infrared remote controller, or a receiving unit that receives a signal from an information processing apparatus such as a personal computer or a server. The dimming interface unit 93 acquires a signal for dimming from the outside, and outputs the acquired signal to the control unit 94.

  The power supply circuit 95 converts an AC voltage supplied from a commercial power source into a DC voltage, and supplies the converted DC voltage to the PWM dimming circuits 96, 97 and the like.

  The control unit 94 can be configured by, for example, a microcomputer. Based on the signal output from the dimming interface unit 93, the control unit 94 outputs a control signal for dimming the LED modules 31 and 32 and the LED module 71 individually. Output to PWM dimming circuits 96 and 97, respectively.

  The PWM dimming circuit 96 acquires the control signal output from the control unit 94 and performs PWM control on the LED modules 31 and 32 according to the acquired control signal. The PWM dimming circuit 97 acquires the control signal output from the control unit 94 and performs PWM control on the LED module 71 in accordance with the acquired control signal. If the LED modules 31 and 32 and the LED module 71 can be dimmed individually, the PWM dimming circuit 96 and the PWM dimming circuit 97 can be combined into one circuit.

  Since the light emitted from the LED modules 31 and 32 can be dimmed, the illuminance and brightness of the ceiling surface are adjusted even when the height to the ceiling surface changes when the lighting device 100 is suspended from the ceiling surface. It is possible to provide preferred indirect illumination according to the installation location of the lighting device 100.

  Moreover, since the light emitted from the LED module 71 can be dimmed separately from the LED modules 31 and 32, the illuminance and brightness of the desk surface and the floor surface can be adjusted while realizing the preferred indirect illumination. It is possible to provide an illumination environment having both indirect illumination and direct illumination according to the user's preference.

  Next, toning is described. FIG. 8 is a block diagram illustrating an example of a color adjustment method of the illumination device 100 according to the embodiment of the present invention. In addition to the LED modules 31, 32, and 71, the lighting device 100 includes an interface unit 103, a control unit 104, a power supply circuit 105, current control circuits 106 and 107 as toning units, and the like. These circuits can be incorporated in the power supply units 91 and 92.

  The LED module 31 includes a white LED 311, a daylight color LED 312, a light bulb color LED 313, and the like. The LED module 32 has the same configuration. The LED module 71 includes a white LED 711, a daylight color LED 712, a light bulb color LED 713, and the like.

  The interface unit 103 is, for example, a light receiving unit that receives an infrared signal from an infrared remote controller, or a receiving unit that receives a signal from an information processing apparatus such as a personal computer or a server. The interface unit 103 acquires a signal for color adjustment from the outside, and outputs the acquired signal to the control unit 104.

  The power supply circuit 105 converts an AC voltage supplied from a commercial power source into a DC voltage, and supplies the converted DC voltage to the current control circuits 106 and 107 and the like.

  The control unit 104 can be configured by a microcomputer, for example, and based on the signal output from the interface unit 103, the control signal is current-controlled to individually adjust the LED modules 31, 32 and the LED module 71. Output to circuits 106 and 107, respectively.

  The current control circuit 106 acquires the control signal output from the control unit 104, and individually drives each LED (white LED 311, daylight color LED 312 and light bulb color LED 313) with a current value corresponding to the acquired control signal. By changing the ratio of the current flowing through each LED, the light emitted from the entire LED module can be toned, for example, to an arbitrary color from white to light bulb color.

  The current control circuit 107 acquires the control signal output from the control unit 104, and individually drives each LED (white LED 711, daylight color LED 712, light bulb color LED 713) with a current value corresponding to the acquired control signal. By changing the ratio of the current flowing through each LED, the light emitted from the entire LED module can be toned, for example, to an arbitrary color from white to light bulb color. Note that the current control circuit 106 and the current control circuit 107 can be combined into one circuit as long as the LED modules 31 and 32 and the LED module 71 can be individually color-adjusted.

  Thereby, for example, by adjusting the color of light emitted from the translucent plates 21, 22, and 14 to white, daylight, light bulb, etc., the color tone of the indirect illumination and the color tone of the direct illumination can be changed according to preference. It is possible to provide a lighting environment according to the user's preference.

  In the above-described embodiment, the lighting device 100 has a long shape, but the shape of the lighting device 100 is not limited to a long shape, and may be a so-called square shape or a circular shape. May be.

  In the above-described embodiment, the light source is an LED. However, the present invention is not limited to this, and other light sources such as an organic EL can also be used.

DESCRIPTION OF SYMBOLS 1 Illuminating device main body 11 Unit main body 12 Main body upper cover 13 Main body lower cover 14 Translucent plate (2nd light emission surface, direct illumination part)
21, 22 Translucent plate (first light emitting surface, indirect illumination unit)
31, 32 LED module (first light source unit)
41, 42 Reflecting plate 51 Mounting base 61 Heat sink 71 LED module (second light source part)
96 PWM dimming circuit (first dimming unit)
97 PWM dimming circuit (second dimming unit)
106, 107 Current control circuit (toning section)
111 Convex (lower center)
121 Top plate (upper center)

Claims (12)

In an illumination device including a light source unit,
An indirect illumination unit that enables the light from the light source unit to be used as indirect illumination;
A direct illumination unit that enables light from the light source unit to be used as direct illumination. A box-shaped lighting device main body incorporating the light source unit,
The indirect illumination unit is
A light emitting surface that emits light provided on one surface of the lighting device body;
The direct illumination unit is:
An illuminating device comprising another light emitting surface provided on the other surface. The indirect illumination unit is
A first light emitting surface that emits light toward a ceiling surface or the like;
The direct illumination unit is:
The lighting device according to claim 1, wherein the lighting device is a second light emitting surface that emits light in a direction different from a ceiling surface or the like.   The illuminating device according to any one of claims 1 to 3, wherein a light amount emitted from the indirect illumination unit is larger than a light amount emitted from the direct illumination unit.   The lighting device according to any one of claims 1 to 4, wherein an area of the indirect lighting unit is larger than an area of the direct lighting unit. The lighting device body includes:
Long,
The indirect illumination unit is
6. The lighting device according to claim 1, comprising two light-emitting surfaces facing each other with the elongated upper central portion of the lighting device body interposed therebetween. Each of the light emitting surfaces is
The lighting device according to claim 6, wherein the lighting device body is inclined so that a height dimension of the lighting device main body decreases from the upper central portion toward the long side edge portion. The direct illumination unit is:
The illuminating device according to claim 6 or 7, wherein the illuminating device main body is provided in a lower central portion of the long shape of the illuminating device main body. The light source unit is
A first light source unit that emits light from the indirect illumination unit;
The illuminating device according to claim 1, further comprising a first dimming unit that dimmes the first light source unit. The light source unit is
A second light source unit that emits light from the direct illumination unit;
The lighting device according to claim 9, further comprising a second dimming unit that dimmes the second light source unit separately from the first light source unit. The light source unit is
A first light source unit that emits light from the indirect illumination unit;
A second light source unit that emits light from the direct illumination unit,
The lighting device according to any one of claims 1 to 10, further comprising a toning unit for toning each of the first light source unit and the second light source unit. The light source unit is
The lighting device according to claim 1, further comprising a light emitting diode.

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