JP2013109973A - Luminaire, and lighting system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire having an organic EL element as a light source, which is made thin in size and of which frame is made narrow.SOLUTION: The luminaire 1 is provided with a light-emitting panel 2 having an organic EL element as a light source, a lighting device 3 which supplies drive voltage to the light-emitting panel 2, and a housing section 4 which houses the lighting device 3. The light-emitting panel 2 is fitted to the housing section 4 through its lower side S1. The lighting device 3 and the housing section 4 each have a long shape extending parallel to the lower side S1. A length L2 in a longitudinal direction of the lighting device 3 is longer than that L1 of the lower side S1. With this construction, compared with a conventional lighting device, without reducing the surface area of the lighting device 3 and the number of circuit components 32 that can be mounted on the lighting device 3, a depth D of the housing section 4 can be made short and a height H of the housing section 4 can be made low to enable thinning and narrowing of the frame of the luminaire 1.

Description

  The present invention relates to a lighting fixture using an organic EL element as a light source and a lighting system using the same.

  The organic EL element can emit light with high luminance at a low voltage, and various emission colors can be obtained depending on the type of organic compound contained, and since it can be easily manufactured as a flat light-emitting panel, Attention is focused on the use as a light source for lighting equipment.

  As shown in FIG. 16, this type of lighting fixture 101 includes a light emitting panel 102, a lighting device 103 that is disposed on the side of the light emitting surface 102 a of the light emitting panel 102, and a storage unit 104 that stores the lighting device 103. (For example, refer to Patent Document 1). The lighting device 103 is electrically connected to the light emitting panel 102 via the distribution line 105 and supplies a driving voltage to the light emitting panel 102. The light emitting panel 102 has a certain distance from the back surface 104b of the storage unit 104 so that the light emitting surface 102a thereof is substantially flush with the surface 104a of the storage unit 104 on the light emitting surface 102a side. Is supported by

JP 2007-149465 A

  However, in the lighting fixture 101 as described above, since the lighting device 103 is thicker than the light emitting panel 102, the lighting fixture 101 cannot be thinned. Further, when the lighting fixture 101 is viewed from the light emitting surface 102a side, the edge of the light emitting panel 102 on the side where the lighting device 103 is disposed becomes large.

  The present invention solves the above-mentioned problem, and in a lighting fixture having a light-emitting panel using an organic EL element as a light source, the lighting fixture capable of being thinned and narrowing the edge of the light-emitting panel (narrowing the frame). The purpose is to provide.

  The lighting fixture of the present invention includes a flat light-emitting panel that uses an organic EL element as a light source, a lighting device that supplies a driving voltage to the light-emitting panel, and a storage unit that stores the lighting device. Is electrically connected to the lighting device in a state in which one side of the outer peripheral line is attached to the storage portion, and the lighting device and the storage portion have a long shape extending in parallel with one side of the light emitting panel, The total length in the longitudinal direction of the lighting device is longer than the length of one side attached to the storage portion of the light emitting panel, and the light emitting panel is arranged to be biased to one side in the longitudinal direction of the storage portion. It is characterized by.

  The lighting device includes a flat circuit board, and the circuit board has a component mounting surface on which a circuit component is mounted on one surface and a ground surface on which the circuit ground is wired on the other surface. It is preferable that the ground surface is opposed to the light emitting panel in a state orthogonal to the light emitting surface of the light emitting panel.

  It is preferable that the lighting device is divided into a plurality of parts, and each of the divided lighting devices is electrically connected to each other by a distribution line.

  The total length of the lighting device in the longitudinal direction is preferably twice the length of the side attached to the storage portion of the light emitting panel.

  It is preferable that the storage portion has a movable portion that can bend a portion where the light emitting panel is not attached.

  The lighting system of this invention is equipped with the said lighting fixture, It is characterized by the above-mentioned.

  According to the present invention, the light-emitting panel is attached to the storage portion, and the storage portion and the lighting device have a long shape extending in a direction parallel to one side of the light-emitting panel. Therefore, the length (thickness) in the direction orthogonal to the direction of the storage unit and the lighting device is reduced without reducing the surface area of the lighting device and the number of circuit components that can be mounted on the lighting device, as compared with the conventional lighting device. be able to. Thereby, a lighting fixture can be reduced in thickness and a frame. In addition, since the light-emitting panels are arranged so as to be biased toward one side in the longitudinal direction of the storage unit, when a plurality of lighting fixtures are connected via the storage units, the light-emitting panels are brought close to each other to emit large light. A surface can be formed.

The disassembled perspective view of the lighting fixture which concerns on embodiment of this invention. The disassembled perspective view of the lighting fixture which concerns on other embodiment. The perspective view which shows the structure in the case of combining two said lighting fixtures. Furthermore, the disassembled perspective view of the lighting fixture which concerns on other embodiment. (A) thru | or (c) is a top view which shows the case where two or more said lighting fixtures are combined, respectively. The disassembled perspective view of the lighting fixture which concerns on said 1st modification. (A) (b) is a top view of the lighting fixture which concerns on a 2nd modification, respectively. Furthermore, the disassembled perspective view of the lighting fixture which concerns on other embodiment. The disassembled perspective view of the lighting fixture which concerns on said modification. The perspective view of the lighting fixture which concerns on other embodiment. Furthermore, the disassembled perspective view of the lighting fixture which concerns on other embodiment. (A) and (b) are top views which show the structure of the lighting fixture which concerns on another embodiment, respectively. The perspective view of the lighting fixture which concerns on other embodiment. The perspective view of the lighting fixture which concerns on said modification. The disassembled perspective view of the illumination system using the lighting fixture which concerns on the said embodiment. The sectional side view of the conventional lighting fixture.

  The lighting fixture which concerns on embodiment of this invention is demonstrated with reference to FIG. The luminaire 1 includes a flat light-emitting panel 2, a lighting device 3 that supplies a driving voltage to the light-emitting panel 2, and a storage unit 4 that stores the lighting device 3. The light emitting panel 2 has a rectangular shape having four sides on the outer peripheral line of the light emitting surface 2A, and the length of the lower side S1 is L1. In addition, the light emission panel 2 should just be that the one side is a straight side. The lighting device 3 includes a long and flat circuit board 31, and the length of the circuit board 31 in the longitudinal direction is L2. L2 is configured to be longer than L1. The circuit board 31 has a component mounting surface 3A on which a circuit component 32 for controlling lighting, dimming, and extinction of the light emitting panel 2 is mounted on one surface, and a ground surface 3B on which the circuit ground is wired on the other surface. Have The lighting device 3 is stored in the storage unit 4 in a state where the component mounting surface 3A of the circuit board 31 is orthogonal to the light emitting surface 2A of the light emitting panel 2. The storage unit 4 is a long box shape, and its longitudinal length (width) is W. The storage portion 4 has a groove 41 extending along the longitudinal direction on one surface thereof. The length of the groove 41 in the longitudinal direction is substantially the same as that of L 1, and the groove 41 is arranged so as to be biased to one side in the longitudinal direction of the storage portion 4. The light emitting panel 2 is attached to the storage portion 4 by fitting a portion corresponding to the lower side S <b> 1 into the groove 41 and is electrically connected to the lighting device 3. Thereby, the lighting device 3 and the storage portion 4 extend in parallel with the lower side S1 of the light emitting panel 2.

  The light emitting panel 2 is configured by a general organic EL light emitting panel. The organic EL light-emitting panel includes a light-transmitting substrate, a light-emitting unit that uses the organic EL element as a light source, and a sealing can that seals the light-emitting unit in order from the light-emitting surface 2A side. The light emitting unit includes, in order from the light transmitting substrate side, a positive electrode made of a transparent conductive film, a light emitting layer containing a light emitting organic material, and a negative electrode having light reflectivity. Both the positive electrode and the negative electrode are electrically connected to the lighting device 3. The electrical connection between the light-emitting panel 2 and the lighting device 3 is made by inserting an input terminal provided on the light-emitting panel 2 into a connector provided in the storage portion 4 and electrically connecting the connector and the lighting device 3. It may be made. The sealing can is made of, for example, glass, metal, ceramic, or plastic, and prevents the light emitting unit from deteriorating by isolating the light emitting unit from the outside air, particularly moisture and oxygen.

  The circuit board 31 of the lighting device 3 is a glass fiber board cured by impregnating a glass fiber cloth with an epoxy resin, for example, a base material that achieves both flame retardancy and low conductivity, such as FR-4. Composed. The lighting device 3 is connected to an external AC power source via a power cord 33. The lighting device 3 includes an AC / DC converter, converts an alternating current obtained from the alternating current power source into a direct current, and then supplies the direct current to the light emitting panel 2.

  The storage unit 4 is made of a material having a predetermined rigidity, for example, a plastic material such as an ABS resin, an acrylic resin, or a polystyrene resin, or a metal material such as aluminum whose surface is insulated.

  According to the lighting fixture 1 of this embodiment, the light emission panel 2 is attached to the storage part 4, and the storage part 4 and the lighting device 3 have a long shape extending in a direction parallel to the lower side S <b> 1 of the light emission panel 2. Therefore, compared with the conventional lighting device, the depth D of the storage portion 4 is shortened and the lighting fixture 1 is thinned without reducing the surface area of the lighting device 3 and the number of circuit components 32 that can be mounted on the lighting device 3. can do. Further, since the circuit board 31 has a flat plate shape and the component placement surface 3A is stored in the storage unit 4 in a state orthogonal to the light emitting surface 2A of the light emitting panel 2, the height H of the storage unit 4 is reduced. can do. Thereby, the edge of the lighting fixture 1 can be narrowed and the lighting fixture 1 can be made into a narrow frame. Thus, even if the lighting device 3 becomes large by increasing the output of the light-emitting panel 2 in the future by making the lighting device 3 long and flat, the lighting fixture 1 is thinned and has a narrow frame. Can be Further, since the light emitting panels 2 are arranged so as to be biased to one side in the longitudinal direction of the storage portion 4, when a plurality of lighting fixtures 1 are connected via the storage portions 4, the light emitting panels 2 are connected to each other. It is possible to form a large light emitting surface 2A in proximity (see FIGS. 5A and 5B described later).

  Next, the lighting fixture which concerns on other embodiment of this invention is demonstrated with reference to FIG.2 and FIG.3. As shown in FIG. 2, in this embodiment, the lighting device 3 is configured longer than the lighting fixture 1 shown in FIG. The length L2 in the longitudinal direction of the lighting device 3 is approximately twice the length L1 of the lower side S1 of the light emitting panel 2. In addition to the groove 41 into which the light emitting panel 2 is fitted, the storage portion 4 is provided with an empty groove 42. The empty groove 42 has the same size as the groove 41 and is disposed along the longitudinal direction of the storage portion 4 adjacent to the groove 41. A distance d <b> 1 from one longitudinal end of the storage unit 4 to the groove 41 is equal to a distance d <b> 2 from the other longitudinal end of the storage unit 4 to the groove 42. As shown in FIG. 3, the two luminaires 1 having such a structure have an end on the opposite side to the side fitted in the groove 41 of each light-emitting panel 2 at the empty portion of the other luminaire 1. They are connected to each other by fitting into the grooves 42.

  According to the present embodiment, since the length L2 of the lighting device 3 in the longitudinal direction is approximately twice as long as L1, the depth D of the storage portion 4 is further shortened compared to the lighting fixture 1 shown in FIG. Thus, the lighting fixture 1 can be made thinner. Further, by combining two lighting fixtures 1, a lighting fixture having a large light emitting surface 2A composed of two light emitting panels 2 adjacent to each other can be obtained. In such a luminaire 1, the two light emitting panels 2 are disposed adjacent to each other along the longitudinal direction of each storage portion 4, so that it is difficult to feel an excess of the length in the longitudinal direction of the storage portion 4. Moreover, even when there are a plurality of light emitting panels 2, the lighting fixture 1 can be made thinner and narrower than the lighting fixture 1 shown in FIG. Further, if one lighting device 3 can supply drive voltage to the two light emitting panels 2, even if one lighting device 3 fails, the other lighting device 3 can be used as a backup. However, in this case, the power supplied to each light emitting panel 2 needs to be halved or less than half when compared with a case where one lighting device 3 supplies a driving voltage to one light emitting panel 2.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIGS. 4 and 5. As shown in FIG. 4, in this embodiment, the lighting device 3 is divided into two lighting devices 3a and 3b. These lighting devices 3a and 3b are electrically connected to each other by a flexible distribution line 5 such as a flexible flat cable or a vinyl-coated wire. The lighting device 3a is disposed in parallel with the lower side S1 of the light emitting panel 2. The lighting device 3b is disposed in parallel with the side S2 orthogonal to the lower side S1. That is, the lighting devices 3a and 3b are orthogonal to each other. The longitudinal length L2a of the lighting device 3a and the longitudinal length L2b of the lighting device 3b are both shorter than L1, but the total length of L2a and L2b is longer than L1. The storage unit 4 has an L-shape formed by a part that stores the lighting device 3a and a part that stores the lighting device 3b. The accommodating part 4 has a groove 41 on a surface 4A facing the light emitting panel 2 in a part for accommodating the lighting device 3a. The groove 41 is provided so as to be biased toward the longitudinal end portion 4B of the storage portion 4 on the surface 4A. Therefore, the light emitting panel 2 is arranged so as to be biased toward the end 4 </ b> B side of the storage unit 4.

  According to the present embodiment, since the total length L2a + L2b of the lighting device 3 in the longitudinal direction is configured to be longer than L1, similarly to the lighting fixture 1 shown in FIG. can do. Moreover, since the lighting device 3 is mutually connected by the flexible distribution line 5, while the assembly of the lighting fixture 1 becomes easy, the design freedom degree of the lighting device 3 becomes high. Thereby, for example, the lighting device 3 and the storage portion 4 can be formed in an L-shape and integrated with the light emitting panel 2 as in the present embodiment. Furthermore, since the lighting device 3 is divided into a plurality of parts, the surface area of the lighting device 3 is increased and the heat dissipation effect of the lighting device 3 is enhanced as compared with the case where the lighting device 3 is not divided.

  As shown in FIGS. 5A to 5C, in this embodiment, the lighting fixtures 1 can be connected to each other via the storage portion 4 in various arrangement patterns. This connection is achieved by, for example, providing a concave portion in one storage portion 4 and providing a convex portion in the other storage portion 4 and fitting the concave portion and the convex portion. Further, the two storage portions 4 may be connected to each other by screwing. In Fig.5 (a), the two lighting fixtures 1 are mutually connected in the state which joined edge part 4B of the accommodating part 4. As shown in FIG. At this time, in each lighting fixture 1, the light-emitting panel 2 is arranged so as to be biased toward the end 4B side, so that the two light-emitting panels 2 are close to each other to form a large light-emitting surface. In FIG. 5B, two lighting fixtures shown in FIG. 5A are combined to form a lighting fixture having a light emitting surface composed of four light emitting panels 2. In FIG.5 (c), the three lighting fixtures 1 are connected via the accommodating part 4 so that each light emission panel 2 may be diagonally connected mutually. Thus, if the accommodating part 4 is L-shaped, the accommodating parts 4 can be connected to each other in various arrangement patterns to obtain various types of lighting fixtures. At this time, all the light emitting panels 2 may be arranged to irradiate light in the same direction, or may be arranged to irradiate light in different directions. Moreover, each lighting fixture 1 may be separately connected to an external AC power source, or may be connected to the external AC power source in a lump by performing feed wiring through a connecting portion of the storage unit 4.

  Next, the lighting fixture which concerns on the 1st modification of this embodiment is demonstrated with reference to FIG. In the present modification, the lighting devices 3 a and 3 b are overlapped with each other and are both disposed in parallel with the lower side S <b> 1 of the light emitting panel 2. Although the longitudinal direction length L2 of the lighting devices 3a and 3b is shorter than L1, the total length L2 + L2 of the longitudinal direction is configured to be longer than L1. Further, the width W of the storage portion 4 is configured to be shorter than L1.

  According to the present modification, the total length L2 + L2 of the lighting devices 3a and 3b in the longitudinal direction is configured to be longer than L1, and thus the lighting fixture 1 can be thinned by reducing the depth D of the storage unit 4. it can. In addition, since the width W of the storage unit 4 is shorter than L1, the storage unit 4 is smaller than the light emitting panel 2, and the storage unit 4 is not easily noticeable. In the present modification, the lighting device 3 is folded and overlapped only once, but may be folded and overlapped twice or more. Thereby, the width | variety W of the accommodating part 4 can further be made small, and the design freedom degree of the lighting fixture 1 increases.

  Next, the lighting fixture which concerns on the 2nd modification of this embodiment is demonstrated with reference to Fig.7 (a) (b). In the lighting fixture 1 shown in FIG. 7A, the lighting device 3a is arranged in parallel with the lower side S1 of the light emitting panel 2, and the lighting device 3b is arranged in parallel with the side S2 orthogonal to the lower side S1. The lighting devices 3a and 3b are housed in the housing portion 4 with their respective ground surfaces 3B facing the light emitting panel 2. On the other hand, in the luminaire 1 shown in FIG. 7B, the lighting devices 3 a and 3 b are overlapped with each other and are both arranged in parallel with the lower side S <b> 1 of the light emitting panel 2. A ground plane 3 </ b> B of the lighting device 3 a close to the light emitting panel 2 is opposed to the light emitting panel 2. The ground plane 3B of the lighting device 3b far from the light emitting panel 2 is opposed to the outside of the lighting fixture 1.

  According to the luminaire 1 shown in FIG. 7A, noise generated in the circuit component 32 of the lighting device 3 is difficult to be transmitted to the light emitting panel 2 side, and thus light emission is reduced by reducing the influence of noise on the light emitting panel 2. The operation of the panel 2 can be stabilized. This effect is higher as the area of the ground wiring is larger and is higher as the lighting device 3 is farther from the light emitting panel 2. On the other hand, according to the lighting fixture 1 shown in FIG.7 (b), while the noise emitted from the lighting device 3a to the direction of the light emission panel 2 is reduced, the noise emitted from the lighting device 3b toward the exterior of the lighting fixture 1 is also reduced. Reduced.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIG. In the present embodiment, the lighting device 3 has a flat plate shape and an L shape. The lighting device 3 includes a portion (longitudinal length L2a) parallel to the lower side S1 of the light emitting panel 2, and a portion (longitudinal length L2b) parallel to the side S2 orthogonal to the lower side S1. The longitudinal lengths L2a and L2b are both shorter than L1, but the total longitudinal length L2a + L2b is configured to be longer than L1. The lighting device 3 is stored in the storage unit 4 in a state where the component mounting surface 3A is parallel to the light emitting surface 2A of the light emitting panel 2. In addition to the circuit component 32, the component placement surface 3A is provided with an illuminance sensor 34 and a remote control light receiving unit 35. A translucent portion 43 is provided at a position corresponding to the illuminance sensor 34 and the remote control light receiving portion 35 of the storage portion 4.

  According to the present embodiment, since the total length L2a + L2b of the lighting device 3 in the longitudinal direction is configured to be longer than L1, the height H of the storage unit 4 is lowered to narrow the lighting fixture 1 in a frame. Can do. Moreover, since the lighting device 3 has a flat plate shape, the depth D of the storage portion 4 can be shortened, and the lighting fixture 1 can be thinned. Moreover, since the L-shaped shape is formed by one lighting device 3, when the L-shaped shape is formed by the lighting devices 3a and 3b divided into two like the lighting fixture 1 shown in FIG. In comparison, the number of members constituting the lighting device 3 can be reduced. In addition, since the illuminance sensor 34 is provided on the component placement surface 3A arranged in parallel with the light emitting surface 2A of the light emitting panel 2, the ambient illuminance of the light emitting surface 2A is accurately detected, and according to the peripheral illuminance. Feedback control for adjusting the illuminance of the luminaire 1 can be appropriately performed. Further, when the lighting fixture 1 is remotely operated from the light emitting surface 2A side of the light emitting panel 2, the remote control light receiving unit 35 is provided in parallel with the light emitting surface 2A, so that signals from the remote control can be efficiently received. can do.

  Next, the lighting fixture which concerns on the modification of this embodiment is demonstrated with reference to FIG. In this modification, the lighting fixture 1 shown in FIG. 8 is provided with another lighting device 6 and a storage portion 7 that stores the lighting device 6. The lighting device 6 is obtained by connecting a battery 36 to the lighting device 3 via the distribution line 5. The battery 36 is composed of a rechargeable battery, and is charged in a steady state when power from the external AC power source is available. The lighting device 6 uses the charged power in the event of an abnormality such as a power failure when the power supply from the external AC power source is interrupted. To supply power. The battery 36 is installed inside the storage unit 7. The storage unit 7 has the same L shape as the storage unit 4 and is disposed so as to cover the upper side S3 and the side S4 of the light emitting panel 2. The storage portion 7 has a groove 71 on a surface facing the upper side S3 of the light emitting panel 2, and a portion corresponding to the upper side S3 of the light emitting panel 2 is fitted into the groove portion 71. Thereby, the light-emitting panel 2 is in a state in which the four sides S1 to S4 are covered with the storage portions 4 and 7.

  According to this modification, the light-emitting panel 2 can be caused to emit light using the power charged in the battery 36 even during an abnormality such as a power failure when the power supply from the external AC power supply is interrupted. Such a lighting fixture 1 can be beneficially used as an emergency light.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIG. In the present embodiment, the light emitting panel 2 has a regular hexagonal shape when viewed from the light emitting surface 2A side. The lighting device 3 includes two lighting devices 3 a and 3 b connected to each other by a distribution line 5. The lighting device 3a is arranged in parallel with the lower side S1 of the light-emitting panel 2, and the lighting device 3b is arranged in parallel with a side adjacent to the lower side S1. The longitudinal length L2 of the lighting devices 3a and 3b is configured to be longer than L1.

  According to this embodiment, since the longitudinal direction length L2 of lighting device 3a, 3b is comprised longer than L1, the lighting fixture 1 can be reduced in thickness and a frame. As described above, even when the light emitting panel 2 has a shape other than the rectangular shape in plan view, the lighting fixture 1 can be thinned and narrowed like the above embodiment.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIG. In the present embodiment, a flat lighting device 8 having a DC / DC converter is added to the lighting apparatus 1 shown in FIG. The lighting device 8 is attached to a surface (back surface) opposite to the light emitting surface 2 </ b> A of the light emitting panel 2, and includes an illuminance sensor 81 and a temperature sensor 82. The longitudinal lengths of the lighting devices 3 and 8 are L2a and L2b, respectively, and the total longitudinal length L2a + L2b is configured to be longer than L1. The lighting device 8 is electrically connected to the lighting device 3 and the light emitting panel 2 so that electric power is supplied through a path of external AC power source → lighting device 3 → lighting device 8 → light emitting panel 2. The lighting device 3 has a circuit insulated from the outside, and the lighting device 8 has a circuit using high-frequency switching.

  According to the present embodiment, since the lighting device 8 has a flat plate shape, the lighting device 8 (DC / DC converter) is disposed on the back surface of the light emitting panel 2 without significantly increasing the thickness of the lighting fixture 1. be able to. Moreover, since the illuminance sensor 81 and the temperature sensor 82 are provided in the lighting device 8 disposed in the immediate vicinity of the luminescent panel 2, the illuminance and temperature of the luminescent panel 2 can be accurately measured. Further, since the lighting device 3 connected to the external AC power source is insulated and isolated by the storage unit 4, for example, when the light emitting panel 2 is replaced, there is a risk that the user touches the lighting device 3 to get an electric shock. Absent. Specifically, the control by the lighting devices 3 and 8 is performed by, for example, converting the AC 100V from the external AC power source into a DC voltage by the lighting device 3 and reducing the voltage to several tens of volts. It is done by converting to.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the storage portion 4 is divided into a movable area 4a and a fixed area 4b. The movable region 4a and the fixed region 4b are connected to each other via a movable portion 44 so that the movable region 4a can be bent with respect to the fixed region 4b. The light emitting panel 2 is attached to the fixed region 4b. The lighting device 3 is accommodated in the fixed area 4b. In FIG. 12A, the movable region 4a and the fixed region 4b are connected in a straight line. From this state, when the movable region 4a is rotated 90 degrees in the direction of the light emitting panel 2, as shown in FIG. 12B, the movable region 4a and the fixed region 4b are L-shaped storage portions 4 that are orthogonal to each other. Is obtained.

  According to this embodiment, since the movable part 44 is provided in the storage part 4, one storage part 4 can take a plurality of forms. As a result, it is possible to cope with a plurality of instrument forms without increasing the number of members, which is advantageous for MT (Manufacturing Technology). A plurality of movable parts 44 may be provided for one storage part 4. The lighting device 3 includes a lighting device housed in the movable region 4a and a lighting device housed in the fixed region 4b, and these lighting devices are connected to each other by a flexible distribution line. Also good.

  Next, a lighting apparatus according to still another embodiment of the present invention will be described with reference to FIG. In the present embodiment, the two luminaires 1 shown in FIG. 1 are arranged adjacent to each other in a state in which the longitudinal directions of the storage units 4 coincide with each other, and the longitudinal ends of the storage units 4 that are close to each other. Are connected by a connecting portion 45. The connecting portion 45 has a cylindrical shape, and connects the two luminaires 1 to the one luminaire 1 so that the other luminaire 1 can rotate about the longitudinal direction. The storage parts 4 of the two lighting fixtures 1 are spatially connected via a connecting part 45, and each lighting device 3 is electrically connected to each other by a distribution line 5 that connects the lighting devices 3 through the connecting part 45. The

  According to this embodiment, since each luminaire 1 is rotatable about the longitudinal direction, the luminaire 1 can be rotated to emit light in an arbitrary direction. In addition, in this modification, although the lighting device 3 of each lighting fixture 1 is connected in parallel, each lighting device 3 may be connected to an external AC power supply each independently.

  Next, the lighting fixture which concerns on the modification of this embodiment is demonstrated with reference to FIG. In this modification, the connecting portion 45 is configured by a flexible connector. According to this modification, since the lighting fixture 1 can be oriented in an arbitrary direction, the light irradiation range of the lighting fixture 1 can be widened.

  Next, a lighting system including the above-described lighting fixture 1 will be described with reference to FIG. The lighting system 11 includes the two lighting fixtures 1 illustrated in FIG. 3 and a housing 9 that covers the light emitting surface 2A side of the lighting fixture 1. The housing 9 is made of a material having a predetermined rigidity, for example, a metal such as aluminum or a resin such as polyethylene terephthalate (PET). According to the illumination system 11, it is possible to provide a thin and stylish flat illumination system having a high light emitting surface area ratio by making use of the characteristics of the thin and narrow frame lighting fixture 1. Such an illumination system 11 can be installed in various places such as a ceiling and a wall surface.

  In addition, the lighting fixture and lighting system which concern on embodiment of this invention and its modification are not limited to said thing, A various deformation | transformation is possible. For example, the lighting device does not necessarily have a flat plate shape, and may be a prismatic shape, for example. Further, the side of the light-emitting panel is not necessarily a straight side, and may be a curved side. Moreover, the shape of the lighting device is not limited to an I-shape or an L-shape, and may be a C-shape or a shape surrounding the light-emitting panel, for example. Furthermore, the shape of the light emitting panel 2 is not limited to a rectangular shape or hexagonal shape in plan view, and may be, for example, a regular octagonal shape or star shape in plan view.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 11 Lighting system 2 Light emission panel 2A Light emission surface 3, 3a, 3b Lighting device 31 Circuit board 32 Circuit component 3A Component mounting surface 3B Ground surface 4 Storage part 44 Movable part 5 Distribution line S1 It attaches to the storage part of a light emission panel One side S2, S3, S4 One side L1 of the light emitting panel Length L2, L2a, L2b of one side attached to the storage part of the light emitting panel The length of the lighting device in the longitudinal direction

Claims (6)

A lighting device comprising a flat light-emitting panel using an organic EL element as a light source, a lighting device that supplies a driving voltage to the light-emitting panel, and a storage unit that stores the lighting device,
The light-emitting panel is electrically connected to the lighting device in a state where one side of the outer peripheral line is attached to the storage unit,
The lighting device and the storage portion are formed in a long shape extending in parallel with one side of the light emitting panel,
The total length in the longitudinal direction of the lighting device is longer than the length of one side attached to the storage portion of the light emitting panel,
The lighting device is characterized in that the light emitting panel is arranged to be biased to one side in a longitudinal direction of the storage portion.   The lighting device includes a flat circuit board, and the circuit board has a component mounting surface on which a circuit component is mounted on one surface and a ground surface on which the circuit ground is wired on the other surface. The lighting fixture according to claim 1, wherein a ground plane is opposed to the light emitting panel in a state orthogonal to the light emitting surface of the light emitting panel.   The lighting device according to claim 1 or 2, wherein the lighting device is divided into a plurality of parts, and each of the divided lighting devices is electrically connected to each other by a distribution line.   4. The total length of the lighting device in the longitudinal direction is twice the length of the side attached to the storage portion of the light emitting panel. 5. The lighting fixture according to one item.   The lighting device according to any one of claims 1 to 4, wherein the storage portion includes a movable portion that can bend a portion to which the light emitting panel is not attached.   An illumination system comprising the illumination fixture according to any one of claims 1 to 5.

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