JP2013037803A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of easily changing light emission modes without giving rise to great hike of cost.SOLUTION: If a panel 10 is made to approach any position of a holder 11, in assembling the lighting device 1, both get attracted to each other by magnetic force acting between a magnet 10c and a magnet 11b heteropolar to each other, and the panel 10 can be mounted on a mounting position of the holder 11. Here, cathode terminals 10b, 11a at the center of each magnet 10c, 11b are to be connected. On the other hand, the panel 10 is guided to a given mounting position with a side edge of an adjacent panel 10 being used as a guide, at which time, an anode terminal 10d is to come in contact with one of cathode terminals 11c to 11e, or not in contact with any, in accordance with relative angles of the panels 10 with respect to mounting positions of the holders 11.

Description

  The present invention relates to an illumination device that can perform illumination in different forms depending on light emitted from a light emitting surface.

  In recent years, diversification of illumination light sources has progressed, and various illumination devices have been proposed. Here, from the viewpoint of improving the interior design, for example, there is a demand for attaching to a wall surface or the like to cause surface emission. However, for example, in organic EL, which is considered promising as a future light source, there is a problem that it is difficult to manufacture a light emitting device with a large area at present. Therefore, there is an attempt to construct a large-area lighting device by combining small-sized organic EL.

  Here, for example, when a panel such as an organic EL is attached to the holder, there is a problem of how power is supplied. In Patent Document 1, as an organic EL lighting panel mounting device, there are U-shaped fixing members on both upper and lower sides, a plurality of lighting panels are mounted by sliding from the side, and power is supplied by an electrode on one side. A method is disclosed in which a dent is provided to attach to the front surface and power is supplied by an electrode on one side. On the other hand, Patent Document 2 describes a method of supplying power without contact.

JP 2007-172918 JP 2009-159675 A

  By the way, when using the illuminating device which combined the several light emission panel, it may want to change suitably light emission forms, such as the illumination intensity of a light emission panel, and a color, by interior design. Or, you may want to change the brightness according to the situation, such as increasing the illuminance when performing fine work and darkening before going to bed. However, in Patent Documents 1 and 2, it is possible to change the light emission form by replacing the components themselves, but there is a problem that a replacement cost is incurred every time the replacement is performed, and the burden on the user is large.

  The present invention has been made in view of the problems of the related art, and an object of the present invention is to provide an illumination device that can easily change the light emission mode without causing a significant increase in cost.

The lighting device according to claim 1 is provided.
A holder with a power supply connected to an external power supply;
A power receiving unit that is attached to the holder and receives power from the power providing unit, and a light emitting unit that emits light by power from the power receiving unit, and
When the panel is attached to the holder, the light emitting unit is caused to emit light in a different manner by changing the energization combination of at least one of the power providing unit and the power receiving unit.

  According to the present invention, when the panel is attached to the holder, it is possible to change the energization combination of the power providing unit and the power receiving unit, at least one of which is plural, so the light emitting unit is configured in a different manner. Can emit light.

  When the lighting device according to claim 2 attaches the panel to the holder according to the invention according to claim 1, at least one of the lighting device changes the energization combination of the power providing unit and the power receiving unit. Thus, the light emitting section emits light with different illuminance. This makes it possible to provide lighting that suits the user's preference. For example, the brightness can be changed according to the situation, such as increasing the illuminance when performing a fine work and darkening before going to bed.

  The lighting device according to claim 3 is the invention according to claim 1 or 2, wherein when the panel is attached to the holder, a combination of energization of the power providing unit and the power receiving unit at least one of which is plural. By changing, the light emitting portion emits light in different colors. Thereby, illumination suitable for the user's preference can be provided. For example, the light emission color can be changed according to the situation such as cold light when working and warm light before going to bed.

  When the lighting device according to claim 4 attaches the panel to the holder in the invention according to any one of claims 1 to 3, at least one of the power providing unit and the power receiving unit are plural. The light emitting unit is caused to blink at different cycles by changing the energization combination. Thereby, lighting suitable for the user's preference can be provided, and for example, it can be changed according to the situation such as continuous lighting when performing fine work and blinking when it is desired to heal.

  The lighting device according to claim 5 is the lighting device according to any one of claims 1 to 4, wherein a plurality of the panels are provided, and a plurality of the holders correspond to power receiving units of the plurality of panels. The power supply unit and a control device that allows or blocks power supply to each power supply unit, and the panel is attached to the holder so as to change the energization combination of the power supply unit and the power receiving unit Then, any one of the panels is caused to emit light by the control device. The control device can provide illumination that suits the user's preference. For this reason, the brightness can be changed according to the situation, for example, the illuminance is increased when performing a fine work and darkened before going to bed.

  The lighting device according to claim 6 is the lighting device according to any one of claims 1 to 5, wherein the panel has a point-symmetric shape, and the power supply unit of the holder is attached to the holder. A plurality of panels are provided at equal distances from the center of the panel, and when the panel is attached to the holder, any one of the power supply units and the power receiving unit can be electrically connected while rotating the panel around the center. It is characterized by connecting. While the external shape of the panel is the same, the light emission form can be arbitrarily changed.

  The lighting device according to claim 7 is the invention according to any one of claims 1 to 5, wherein the panel has a point-symmetric shape, and the power reception unit of the panel is equidistant from the center of the panel. A plurality of the power receiving units are connected to the power supply unit in a conductive manner while rotating the panel around the center when the panel is attached to the holder. . While the external shape of the panel is the same, the light emission form can be arbitrarily changed.

  The lighting device according to an eighth aspect is characterized in that, in the invention according to any one of the first to seventh aspects, the power providing unit and the power receiving unit are in contact with each other so as to be conductive. As a result, reliable power supply can be secured, and there is an effect that it is cheaper and more efficient. In the present specification, the term “terminal” refers to one formed from a metal or other conductive member.

  According to a ninth aspect of the present invention, in the invention according to the eighth aspect, the power receiving unit moves between a contact position that contacts the power providing unit and a non-contact position that does not contact the power providing unit. It is characterized by including possible terminals. Thereby, unnecessary power feeding can be avoided.

  The lighting device according to claim 10 is the terminal according to claim 8, wherein the power reception unit is movable so as to select and contact any one of the plurality of power supply units. It is characterized by including. Thereby, the light emission form can be changed.

  According to an eleventh aspect of the present invention, in the invention according to any one of the first to seventh aspects, the power providing unit and the power receiving unit can conduct electricity in a non-contact state. As a result, it is possible to supply power without completely fixing the panel to the holder. Further, when the panel is removed from the holder, none of the terminals are exposed.

  A lighting device according to a twelfth aspect is characterized in that, in the invention according to any one of the first to eleventh aspects, the panel is attached to the holder using a magnetic force. This is convenient because the panel can be easily detached from the holder. In addition, the attachment method is not limited to a magnet, and various forms such as Velcro (registered trademark), adhesive, sucker, and stab are conceivable.

  ADVANTAGE OF THE INVENTION According to this invention, the lighting apparatus which can change a light emission form easily can be provided, without causing the increase in a significant cost.

It is a perspective view of the illuminating device concerning 1st Embodiment. It is a figure which shows the relationship between the relative angle of the panel 10 with respect to the attachment position of the holder 11, and the illumination intensity with the panel 10. FIG. It is a figure which shows the modification of this Embodiment. It is a figure which shows another modification of this Embodiment. It is a figure which shows the relationship between the relative angle of the panel 10 with respect to the attachment position of the holder 11, and the luminescent color with the panel 10 concerning 2nd Embodiment. It is a figure which shows another modification of this Embodiment. It is a figure which shows another modification of this Embodiment. It is a figure which shows the panel 10 and the holder 11 concerning the modification of this Embodiment. It is the schematic which shows the wiring of the holder 11 in the illuminating device concerning 3rd Embodiment. It is sectional drawing of the illuminating device concerning 4th Embodiment. It is a figure which shows the modification of a terminal. It is sectional drawing similar to FIG. 11 which shows another modification of a terminal. It is a perspective view of the illuminating device concerning another modification. It is sectional drawing which shows another modification of a terminal. It is sectional drawing which shows another modification of a terminal. It is sectional drawing which shows another modification of a terminal. It is a perspective view of the illuminating device concerning another modification. It is the schematic of the illuminating device concerning another modification.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of the lighting apparatus according to the first embodiment, with one panel removed.

  The lighting device 1 includes a plurality of panels 10, a holder 11, and a rectangular frame 12. In FIG. 1, the panels 10 are arranged on the holder 11 and inside the rectangular frame 12 in 6 columns and 8 rows. ing. Each panel 10 is the same square plate shape, and has the light emission part 10a which consists of an organic EL structure on the surface side. As for the organic EL structure, one that can change the illuminance and the emission color by changing the voltage is disclosed in JP 2010-262806 A and the like.

  Each panel 10 has a cathode terminal 10b and a ring-shaped magnet 10c formed around the cathode terminal 10b in the center of the back surface side, and further has an anode terminal 10d in the vicinity of one corner. doing. The cathode terminal 10b and the anode terminal 10d constitute a power receiving unit.

  On the other hand, the upper surface of the plate-shaped holder 11 has a planar shape on which the panel 10 can be spread, and a cathode is formed at the center in accordance with the square mounting position formed at the side edge of the adjacent panel 10. It has a terminal 11a and a ring-shaped magnet 11b formed around the cathode terminal 11a (provided that the opposing magnet 10c has a different polarity), and in the vicinity of three corners at a square mounting position In addition, anode terminals 11c to 11e are provided. The cathode terminal 11a and the anode terminals 11c to 11e are connected to an external power supply source (not shown) from the back surface of the holder 11, and constitute a power providing unit. The cathode terminal and the anode terminal may be reversed.

  When the lighting device 1 is assembled, when the panel 10 is brought close to an arbitrary position of the holder 11, both are attracted by the magnetic force acting between the magnets 10c and 11b having different polarities, and the holder 11 is attached. The panel 10 can be mounted at the position. At this time, the cathode terminals 10b and 11a at the center of the magnets 10c and 11b are connected. On the other hand, the panel 10 is guided to a predetermined mounting position so as to be fitted into a square space formed by the side edges of the adjacent panels 10, where the anode terminal 10 d is connected to the mounting position of the holder 11. Depending on the relative angle, the anode terminals 11c to 11e are in contact with or not in contact with any of the anode terminals 11c to 11e.

  FIG. 2 is a diagram showing the relationship between the relative angle of the panel 10 with respect to the mounting position of the holder 11 and the illuminance with the panel 10, and the panel and the holder are perspective views seen from the same direction. Here, in the holder 11, the highest voltage is applied to the anode terminal 11c, the intermediate voltage is applied to the anode terminal 11d, and the lowest voltage is applied to the anode terminal 11e.

  As shown in FIG. 2A, when the panel 10 is attached to the attachment position of the holder 11 (shown by a dotted line) at an angle phase such that the anode terminal 10d contacts the anode terminal 11c, the light emitting portion 10a of the panel 10 is It will emit the brightest light.

  Further, as shown in FIG. 2 (b) obtained by rotating the panel 10 by 90 degrees from the state of FIG. 2 (a), the panel 10 is held in the holder 11 at an angular phase such that the anode terminal 10d contacts the anode terminal 11d. Is attached at the attachment position (indicated by a dotted line), the light emitting portion 10a of the panel 10 emits light with intermediate brightness.

  Further, as shown in FIG. 2C, in which the panel 10 is rotated by 90 degrees from the state of FIG. 2B, the panel 10 is held in the holder 11 at an angular phase such that the anode terminal 10d contacts the anode terminal 11e. The light emitting portion 10a of the panel 10 emits light most darkly.

  Further, when the panel 10 is attached to the attachment position (indicated by the dotted line) of the holder 11 at an angular phase as shown in FIG. 2D obtained by rotating the panel 10 by 90 degrees from the state of FIG. Since the terminal 10d does not contact any of the anode terminals 11c to 11e, the light emitting part 10a of the panel 10 does not emit light.

  As is clear from the above, in the illumination device 1 shown in FIG. 1, the illuminance of each panel 10 can be changed by changing the angle phase of each panel 10 with respect to the holder 11. Also, the angle phase of each panel 10 can be removed by simply removing any panel 10 against the magnetic force with a bare hand, changing the angle phase, and then reattaching it without using a tool even after each panel 10 is attached. Since the illuminance can be changed, the user can easily realize the desired lighting design.

  In addition, instead of making the voltage applied to the anode terminals 11c to 11e constant, by periodically changing the voltage at different cycles, for example, the light emitting unit 10a of the panel 10 is continuously lit in the state of FIG. In the state of FIG. 2B, blinking in an early cycle can be performed, and in the state of FIG. 2C, blinking in a later cycle can be performed.

  FIG. 3 is a diagram showing a modification of the present embodiment. In the modification of FIG. 3, the panel 10 has a cathode terminal 10b arranged at the center on the back side, and magnets 10c (here, the N poles are directed toward the holder 11) near the four corners. . Furthermore, one anode terminal 10d is arranged between adjacent magnets 10c.

  On the other hand, in the holder 11, a cathode terminal 11a is arranged at the center of a square mounting position (indicated by a dotted line) formed at the side edge of the adjacent panel 10, and magnets 11b ( Here, the S pole is directed to the panel 10 side). Further, four anode terminals 11c to 11f are arranged between the adjacent magnets 11b.

  When the panel 10 is brought close to the holder 11, the four magnets 10 c and 11 b having the same arrangement relationship are attracted to each other, so that the panel 10 can be attached at four angular phases. At this time, since the anode terminal 10d comes into contact with any of the four anode terminals 11c to 11f equidistant from the center, the light emission form of the panel 10 can be changed according to the angular phase.

  FIG. 4 is a diagram showing another modification of the present embodiment. In the modification of FIG. 4, the panel 10 has a cathode terminal 10b arranged at the center on the back surface side, and magnets 10c in the vicinity of four corners (here, two on the diagonal are N poles and the rest are S poles). Is arranged. Furthermore, one anode terminal 10d is arranged between adjacent magnets 10c.

  On the other hand, in the holder 11, a cathode terminal 11a is arranged at the center of a square mounting position (indicated by a dotted line) formed at the side edge of the adjacent panel 10, and magnets 11b ( Two on the diagonal are N poles and the rest are S poles). Further, two anode terminals 11d and 11f are arranged between the adjacent magnets 11b with the cathode terminal 11a interposed therebetween.

  When the panel 10 is brought close to the holder 11, the diagonal magnets 10c and 11b having the same arrangement relationship attract each other, so that the panel 10 can be attached at two angular phases. At this time, since the anode terminal 10d comes into contact with one of the two anode terminals 11d and 11f equidistant from the center, the light emission form of the panel 10 can be changed according to the angular phase.

(Second Embodiment)
FIG. 5 is a diagram showing the relationship between the relative angle of the panel 10 with respect to the mounting position of the holder 11 and the emission color of the panel 10 according to the second embodiment, but the panel and the holder are viewed from the same direction. FIG. In the second embodiment, the cathode terminal 11a and the periphery of the cathode terminal 11a are formed at the center in accordance with the square mounting position formed on the side edge of the adjacent panel 10 on the holder 11. The ring-shaped magnet 11b is provided, but the anode terminal 11c is provided only in the center near the upper edge in FIG. The cathode terminal 11a and the anode terminal 11c are connected to an external power supply source (not shown) from the back surface of the holder 11, and constitute a power providing unit.

  On the other hand, each panel 10 has a cathode terminal 10b and a ring-shaped magnet 10c formed around the cathode terminal 10b (provided that the opposing magnet 11b has a different polarity) in the center on the back side. In addition, four anode terminals 10d to 10g are provided in the center near the top, bottom, left, and right edges. The cathode terminal 10b and the anode terminals 10d to 10g constitute a power receiving unit.

  In the present embodiment, when power is supplied from the cathode terminal 10b and the anode terminal 10d, the panel 10 emits white light, and when power is supplied from the cathode terminal 10b and the anode terminal 10e, the panel 10 is red. When light is emitted and power is supplied from the cathode terminal 10b and the anode terminal 10f, the panel 10 emits blue light. When power is supplied from the cathode terminal 10b and the anode terminal 10g, the panel 10 emits yellow light. It emits light.

  That is, as shown in FIG. 5A, when the panel 10 is attached to the attachment position (indicated by the dotted line) of the holder 11 at an angular phase such that the anode terminal 10d contacts the anode terminal 11c, the light emitting portion of the panel 10 10a emits white light.

  Further, as shown in FIG. 5 (b) obtained by rotating the panel 10 by 90 degrees from the state of FIG. 5 (a), an angle at which the anode terminal 10e contacts the attachment position (shown by a dotted line) of the anode terminal 11c. When the panel 10 is attached to the holder 11 in phase, the light emitting portion 10a of the panel 10 emits red light.

  Further, as shown in FIG. 5C, in which the panel 10 is rotated 90 degrees from the state of FIG. 5B, the angle at which the anode terminal 10f contacts the attachment position (shown by a dotted line) of the anode terminal 11c. When the panel 10 is attached to the holder 11 in phase, the light emitting portion 10a of the panel 10 emits blue light.

  Further, as shown in FIG. 5 (d) obtained by rotating the panel 10 by 90 degrees from the state of FIG. 5 (c), the angle at which the anode terminal 10g contacts the attachment position (shown by a dotted line) of the anode terminal 11c. When the panel 10 is attached to the holder 11 in phase, the light emitting portion 10a of the panel 10 emits yellow light.

  In this case, when assembling to the holder 11, symbols or marks such as W, R, B, and Y may be engraved on each terminal so that each anode terminal of the panel 10 can be distinguished. When the panel 10 is an LED light emitting type, as shown in FIG. 18, a light emitting element LDw that emits white light is disposed between the terminals 10c and 10d, and a light emitting element LDr that emits red light between the terminals 10c and 10e. Are arranged, a light emitting element LDb that emits blue light is arranged between the terminals 10c and 10f, and a light emitting element LDy that emits yellow light is arranged between the terminals 10c and 10g, thereby supplying an anode according to the angular phase. The light emission color can be changed by selecting one of the terminals 10d to 10g. Since FIG. 18 is a schematic diagram, the position of the terminal may be different from the actual position.

  Further, when an LED or the like is used, the brightness changes depending on the flowing current. Therefore, even if the voltage on the holder 11 side is constant, the brightness changes only by changing the resistance value on the panel 10 side. For example, when an LED and a resistor are sandwiched between the power receiving unit and the light emitting unit, the smaller the resistance value of the resistor, the brighter it becomes. That is, the brightness can be changed for each connected terminal by making the resistance values of the resistors connected to the anode terminals 10d to 10g different.

  FIG. 6 is a diagram showing another modification of the present embodiment. In the modification of FIG. 6, the panel 10 has a disk shape, the cathode terminal 10 b is arranged at the center on the back side, and the magnets 10 c (here, the N pole is directed toward the holder 11) are arranged at intervals of 90 degrees. doing. Further, four anode terminals 10d to 10g are arranged between adjacent magnets 10c.

  In contrast, the holder 11 has a cathode terminal 11a arranged at the center of a circular mounting position (shown by a dotted line), and magnets 11b (here, the S poles are directed toward the panel 10) at intervals of 90 degrees. doing. Furthermore, one anode terminal 11c is disposed between adjacent magnets 11b.

  When the panel 10 is brought close to the holder 11, the four magnets 10c and 11b having the same arrangement relationship attract each other, so that the panel 10 can be attached at four angular phases. At this time, any one of the anode terminals 10d to 10g equidistant from the center comes into contact with the anode terminal 11c, so that the light emission form of the panel 10 can be changed according to the angular phase. In this modified example, since the panel 10 is circular, the side edge of the adjacent panel has a relatively weak function as a guide. However, the magnets 10c and 11b serve as a guide, so Supports assembly.

  FIG. 7 is a diagram showing another modification of the present embodiment. In the modified example of FIG. 7, the disk-shaped panel 10 has a cathode terminal 10b arranged at the center on the back side, and four magnets 10c (here, two on the diagonal line are N poles and the rest are S poles) at intervals of 90 degrees. As). Further, two anode terminals 10d and 10e are arranged between the adjacent magnets 10c with the cathode terminal 10b interposed therebetween.

  On the other hand, the holder 11 has a cathode terminal 11a arranged at the center of a circular mounting position (indicated by a dotted line), and four magnets 11b (two on the diagonal line are N poles and the rest are S poles) at intervals of 90 degrees. As). Furthermore, one anode terminal 11c is disposed between adjacent magnets 11b.

  When the panel 10 is brought close to the holder 11, the diagonal magnets 10c and 11b having the same arrangement relationship attract each other, so that the panel 10 can be attached at two angular phases. At this time, any one of the anode terminals 10d and 10e that are equidistant from the center comes into contact with the anode terminal 11c, so that the light emission form of the panel 10 can be changed according to the angular phase.

  FIG. 8 is a diagram showing a panel 10 and a holder 11 according to a modification of the present embodiment. In the modification of FIG. 8A, the anode terminal 11c of the holder 11 has an annular shape surrounding the magnet 11b. Therefore, when the panel 10 is attached to the holder 11 using the attractive force of the magnets 10c and 11b, the anode terminal 10d of the panel 10 and the anode terminal of the holder 11 are in any direction. Since 11c contacts and is conducted, the panel 10 can be light-emitted. However, as shown in FIG. 8, one detection terminal 10k is provided in the vicinity of the periphery of the panel 10, four detection terminals 11k are provided at a corresponding position of the holder 11 at a phase of 90 degrees, and the detection terminal 10k is provided. Further, the illuminance and the emission color can be changed by detecting the angular phase of the panel 10 by the conduction of one of the detection terminals 11k.

  On the other hand, in the example shown in FIG. 8B, the four detection terminals 11k are extended in the circumferential direction to form an arc shape, whereby the detection terminal 10k is electrically connected to one of the detection terminals 11k. This is advantageous because the range can be expanded.

(Third embodiment)
FIG. 9 is a schematic diagram showing the wiring of the holder 11 in the illumination device according to the third embodiment. The anode terminals 11c to 11f of the holder 11 are connected to the control device CONT via individual wires H1 to H4, respectively. The control device CONT can energize any one of the wirings H1 to H4. In FIG. 9, magnets are omitted.

  According to the present embodiment, after the anode terminal 10d of the panel 10 is attached so as to be in contact with any one of the anode terminals 11c to 11f of the holder 11, the control device CONT energizes only the wiring H1. The anode terminal 10d can emit light only from the panel 10 in contact with the anode terminal 11c of the holder 11, and when only the wiring H2 is energized, the anode terminal 10d is in contact with the anode terminal 11d of the holder 11. When only the wiring H3 is energized, the anode terminal 10d can emit only the panel 10 in contact with the anode terminal 11e of the holder 11, and when only the wiring H4 is energized, Only the panel 10 in which the anode terminal 10 d is in contact with the anode terminal 11 f of the holder 11 can emit light. Thereby, the light emission pattern of the some panel 10 can be changed. Obviously, the number of wires through which the control device CONT is energized is arbitrary.

(Fourth embodiment)
FIG. 10 is a cross-sectional view of the illumination device according to the fourth embodiment. The panel 10 is curved in a free state with the light emitting portion 10a side as a convex shape. Therefore, as shown in FIG. 10 (a), in the state of being placed on the floor surface G or the like, the anode terminal 10d and the cathode terminal 10b provided on the back surface of the panel 10 are not installed on the floor surface. There is little possibility of dust adhering.

  On the other hand, as shown in FIG. 10B, when the panel 10 is attached to the holder 11, the magnet 10c at the center of the panel 10 and the magnet 11b of the holder 11 attract each other, so that the panel 10 is elastically deformed. Is corrected and comes into close contact with the upper surface of the holder 11. At this time, when the anode terminal 10d and the cathode terminal 10b of the panel 10 are in contact with the anode terminal 11c and the cathode terminal 11a of the holder 11, respectively, the panel 10 can emit light. When the panel 10 is removed, the state returns to the state of FIG.

  FIG. 11 is a diagram illustrating a modification of the terminal. As shown in FIG. 11, the anode terminal 10 d is exposed in a spherical shape on the back side of the panel 10. On the other hand, a spherical hole 11h is formed on the upper surface of the holder 11, and a metallic anode terminal 11c is provided on the bottom thereof. The anode terminal 11c extends through the holder 11 and is connected to a wiring H that receives power from the outside.

  When the panel 10 is attached to the holder 11, when the spherical anode terminal 10d is pressed toward the hole 11h, it elastically deforms so that the inlet of the hole 11h opens, and when the anode terminal 10d fits inside, the elastic deformation returns, The anode terminal 10d is fitted in the hole 11h. Thereby, since the panel 10 is held by the holder 11, a magnet is unnecessary. Further, since the anode terminal 10d is connected to the wiring H through the anode terminal 11c, power can be supplied from the outside through the anode terminals 10d and 11b. A similar configuration can be applied to the cathode terminal. When a force is applied so that the panel 10 is peeled off from the holder 11, the spherical anode terminal 10d is dropped from the hole 11h, so that the panel 10 can be easily attached and detached.

  FIG. 12 is a cross-sectional view similar to FIG. 11 showing another modification of the terminal. In this modification, a metal terminal 10 d protrudes on the back side of the panel 10. On the other hand, a circular or rectangular hole 11h as viewed from the panel 10 side is formed on the upper surface of the holder 11, and a wiring H extending in the holder 11 to receive power from the outside is formed at the bottom thereof. Is exposed.

  According to this modification, when the panel 10 is attached to the holder 11, the terminal 10d enters the hole 11h and comes into contact with the wiring H. Therefore, the terminal 10d is the same as in the above-described embodiment. Power can be supplied to the panel 10 from the outside via In this modification, since the contact range can be made wider than in the example shown in FIG. 11, the relative positional deviation between the panel 10 and the holder 11 can be allowed to some extent, but a separate fixing magnet, magic tape, adhesive, and suction cup Need to embed.

  FIG. 13 is a perspective view of a lighting device according to another modification. In FIG. 13, side surfaces 10x and 10y of the panel 10 that intersect with each other are inclined with respect to the surface of the light emitting unit 10a. Therefore, when removing the arbitrary panel 10, as shown by the arrows, it may be extracted in the direction along both the side surfaces 10x and 10y. Only one of the side surfaces 10x and 10y may be inclined.

  FIG. 14 is a cross-sectional view showing another modification of the terminal. In the present modification, the panel 10 is provided with a planar anode layer 10p connected to the light emitting portion and a planar cathode layer 10m separately so as to extend in the horizontal direction. An inverted L-shaped space 10s is formed in the panel 10 below a part of the anode layer 10p, and extends to the lower surface of the panel 10 through an opening 10n formed in the cathode layer 10m below. . An insulating material is applied to the inner periphery of the opening 10n. On the other hand, an inverted L-shaped space 10 t is formed in the panel 10 below a part of the cathode layer 10 m and extends to the lower surface of the panel 10. The inner ends of both spaces 10s, 10t are connected to an elongated hole 10u extending from the anode layer 10p to the lower surface of the panel 10 through the opening 10q formed in the cathode layer 10m. In the elongated hole 10u, a non-conductive and rigid rod-like switch member 10w extends in the vertical direction and is disposed so as to be movable in the horizontal direction along the elongated hole 10u. A terminal 10b made of a flexible conductive member is disposed in the space 10s, and its inner end is fixed to the upper part of the switch member 10w, and its upper surface is in contact with the lower surface of the anode layer 10p. The cathode layer 10m is not in contact with the insulating material of the opening 10n. On the other hand, a terminal 10d made of a flexible conductive member is disposed in the space 10t, its inner end is fixed near the center of the switch member 10w, and its upper surface is in contact with the lower surface of the cathode layer 10m. ing.

  As shown in FIG. 14 (a), when the switch member 10w is moved to the left in the elongated hole 10u, the lower end of the terminal 10b is pushed out from the inverted L-shaped space 10s, and from the lower surface of the panel 10. Since the lower end of the terminal 10d is pushed out from the inverted L-shaped space 10t and protrudes from the lower surface of the panel 10, the terminal 10b is attached to the anode side terminal 11c of the holder 11 when the panel 10 is attached to the holder 11. The terminal 10 d is connected to the cathode side terminal 11 c of the holder 11. Thereby, since it can supply electric power to the anode layer 10p and the cathode layer 10m, the light emission part of the panel 10 can be light-emitted. On the other hand, as shown in FIG. 14 (b), when the switch member 10w is moved rightward in the elongated hole 10u, the terminal 10b is pulled in the inverted L-shaped space 10s, and the panel 10 Since the terminal 10d is pulled in the inverted L-shaped space 10t and retracts from the lower surface of the panel 10, when the panel 10 is attached to the holder 11, the terminal 10b and the anode of the holder 11 are retracted. The connection between the side terminal 11c and the terminal 10d and the cathode side terminal 11c of the holder 11 is disconnected. Thereby, the light emission part of the panel 10 can be light-extinguished. In such a state, since the terminals 10b and 10d are drawn into the panel 10, it is possible to avoid inadvertent energization when the panel 10 is removed. There is little possibility of adhesion. A plurality of pairs of such terminals 10b and 10d are provided, and an anode side terminal 11c and a cathode side terminal 11c having different potential differences are prepared, and any one of the terminals 10b and 10d is different in potential difference. By connecting to the anode side terminal 11c and the cathode side terminal 11c, the illuminance and the like of the light emitting part can be changed as desired (the same applies to the example of FIG. 15). Note that any one of the terminals 10b and 10d may be separated from the switch member 10w to be in a fixed state.

  FIG. 15 is a cross-sectional view similar to FIG. 14 showing another modification of the terminal. In this modification, no switch member is provided, and only the terminal 10b made of a flexible conductive member is movably disposed in the inverted U-shaped space 10s. As shown in the figure, the terminal 10b has an overall length slightly shorter than the length of the space 10s. Furthermore, the insulating material 10v is bonded and fixed to the end of one side (here, the right side) of the terminal 10b. Here, the cathode layer and the like are omitted.

  As shown in FIG. 15A, when the right end (insulating material 10v) of the terminal 10b exposed from the right hole of the inverted U-shaped space 10s is pushed up with a tool or the like (not shown), the inverted U-shaped The left end protrudes from the left hole of the space 10s. In this state, when the panel 10 is attached to the holder 11, the left end portion of the protruding terminal 10 b is connected to the anode side terminal 11 c of the holder 11, so that power is supplied. On the other hand, as shown in FIG. 15B, when the left end of the terminal 10b exposed from the left hole of the inverted U-shaped space 10s is pushed up with a tool or the like (not shown), an inverted U-shaped space is obtained. The right end protrudes from the right hole of 10s. In this state, when the panel 10 is attached to the holder 11, the right end portion of the protruding terminal 10 b does not come into contact with the anode side terminal 11 c of the holder 11, so that power feeding is not performed. In addition, since the terminal 10b is pulled into the panel 10, it is possible to avoid inadvertent energization when the panel 10 is removed, and there is a risk that oil or dust may adhere to the floor surface when the panel 10 is removed. Few.

  FIG. 16 is a cross-sectional view similar to FIG. 15 showing another modification of the terminal. In the present modification, a terminal 11c ′ connected to another circuit is opposed to the right end of the terminal 10b protruding from the right hole of the inverted U-shaped space 10s with respect to the example shown in FIG. Is provided.

  As shown in FIG. 16A, when the right end of the terminal 10b exposed from the right hole of the inverted U-shaped space 10s is pushed up with a tool or the like (not shown), the left side of the inverted U-shaped space 10s The left end protrudes from the hole. When the panel 10 is attached to the holder 11 in this state, the left end portion of the protruding terminal 10b is connected to the anode-side terminal 11c of the holder 11, so that power is supplied from the circuit A (not shown). On the other hand, as shown in FIG. 16B, when the left end of the terminal 10b exposed from the left hole of the inverted U-shaped space 10s is pushed up with a tool or the like (not shown), the inverted U-shaped space is obtained. The right end protrudes from the right hole of 10s. When the panel 10 is attached to the holder 11 in this state, the right end portion of the protruding terminal 10b is connected to the anode side terminal 11c ′ of the holder 11, so that power is supplied from a circuit B (not shown) different from the circuit A. Done. Thereby, a change such as changing the illuminance of the light emitting unit can be performed. As an example of the above modification, once the terminal 10b which is projected by being spring-biased in the hole is pushed in like an alternate type push-type switch, the state of being pushed into the hole by engaging the claw portion is maintained. When the terminal 10b is pushed in again, the engagement with the claw portion is released and the terminal 10b projects from the hole again.

  In the embodiment described above, the contact type terminal is used for power supply, but a non-contact type power supply means may be used. For example, in the example illustrated in FIG. 17, a power receiving coil RC serving as a power receiving unit connected to the light emitting unit is embedded in the panel 10, and a power transmission coil SC serving as a power providing unit connected to an AC power source is provided at a corresponding position of the holder 11. Are buried. When the panel 10 is attached to a predetermined position of the holder 11 with the attraction force of a magnet (not shown), the power receiving coil RC faces the power transmitting coil SC. Therefore, power is supplied in a non-contact manner using electromagnetic induction. Can do. In addition to this, there are a radio wave receiving type and a resonance type as the non-contact type power feeding.

DESCRIPTION OF SYMBOLS 10 Panel 10a Light emission part 10b Cathode terminal 10c Magnet 10d Anode terminal 10e Anode terminal 10f Anode terminal 10g Anode terminal 10k Detection terminal 10x, 10y Side surface 11 Holder 11a Cathode terminal 11b Magnet 11c Anode terminal 11d Anode terminal 11h Anode terminal 11f Anode terminal 11f Hole 11k Detection terminal 12 Rectangular frame 14 Holder G Floor H Wiring H1 Wiring H2 Wiring H3 Wiring H4 Wiring RC Power receiving coil SC Power transmitting coil

Claims (12)

A holder with a power supply connected to an external power supply;
A power receiving unit that is attached to the holder and receives power from the power providing unit, and a light emitting unit that emits light by power from the power receiving unit, and
When attaching the panel to the holder, at least one of the plurality of power providing units and the power receiving unit is changed to change the current-carrying combination so that the light-emitting unit emits light in a different manner. .   The light emitting unit emits light with different illuminance by changing a combination of energization of the power providing unit and the power receiving unit, at least one of which is a plurality, when the panel is attached to the holder. The lighting device according to 1.   The light emitting unit is caused to emit light in different colors by changing a combination of energization of the power providing unit and the power receiving unit, at least one of which is a plurality when the panel is attached to the holder. The lighting device according to 1 or 2.   When the panel is attached to the holder, the light emitting unit is caused to blink in different cycles by changing the energization combination of at least one of the power providing unit and the power receiving unit. The illuminating device in any one of 1-3. A plurality of the panels are provided, and the holder includes a plurality of the power supply units corresponding to power reception units of the plurality of panels, and a control device that allows or blocks power supply to each power supply unit. Prepared,
The said control apparatus makes any one of the said panels light-emit, when the said panel is attached to the said holder so that the energization combination of the said electric power provision part and the said power receiving part may be changed. The lighting apparatus in any one.   The panel has a point-symmetric shape, and a plurality of power supply portions of the holder are provided at equal distances from the center of the panel attached to the holder, and when attaching the panel to the holder, 6. The lighting device according to claim 1, wherein one of the power supply units and the power reception unit are connected so as to be conductive while rotating and displacing the panel around a center.   The panel has a point-symmetric shape, and a plurality of power receiving portions of the panel are provided at an equal distance from the center of the panel, and rotate around the panel when the panel is attached to the holder. The lighting device according to claim 1, wherein any one of the power reception units and the power supply unit are connected so as to be conductive while being displaced.   The lighting device according to claim 1, wherein the power supply unit and the power reception unit are in contact with each other so as to be conductive.   The power receiving unit includes a terminal that is movable between a contact position that contacts the power providing unit and a non-contact position that does not contact the power providing unit. Lighting device.   The lighting device according to claim 8, wherein the power reception unit includes a terminal that is movable so as to select and contact any of the plurality of power supply units.   The lighting device according to claim 1, wherein the power supply unit and the power reception unit can conduct electricity in a non-contact state.   The lighting device according to claim 1, wherein the panel is attached to the holder using a magnetic force.