JP2014165137A - Drive unit and light-emitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a drive unit to a lighting fixture attachment device such as an existing fluorescent lamp metal fitting, and to obtain a freedom of an arrangement of a light source.SOLUTION: A drive unit 100 comprises: a support part 10 which is long in one direction; a holding part (for example, composed of a pair of arms 30) which is connected to the support part 10, and holds a light source 20; a drive circuit which drives the light source 20; and a pair of fixed parts 40 which are formed at both ends of the support part 10 in the longitudinal direction, respectively. Each of the fixed parts 40 is formed so as to be attachable to a cap socket 520 of a lighting fixture attachment device 500 to which a straight-tube lighting fixture is attached. At least one of a pair of the fixed parts 40 is a power receiving terminal. The holding part is extended from the support part 10 toward a direction intersecting with the longitudinal direction of the support part 10, and holds the light source 20 at an end part at a side opposite to the support part 10 side in the holding part.

Description

  The present invention relates to a driving device and a light emitting device for driving a light source.

  The straight tube type fluorescent lamp is used by being mounted on a fluorescent lamp mounting device installed on a ceiling or the like. The straight tube type fluorescent lamp has caps at both ends, and terminals are formed on the caps. The fluorescent lamp mounting fixture has a pair of base sockets arranged at intervals corresponding to the longitudinal dimension of the straight tube fluorescent lamp. By inserting and fixing the terminals at both ends of the straight tube fluorescent lamp to the pair of base sockets of the fluorescent lamp mounting fixture, the straight tube fluorescent lamp can be mounted on the fluorescent lamp mounting fixture.

  On the other hand, in recent years, light-emitting elements with low power consumption such as organic EL (Electro Luminescence) elements and LEDs (Light Emitting Diodes) have come to be widely used.

  Patent Document 1 discloses a technique for mounting a straight tube fluorescent lamp type LED illumination device, which is a light source having a plurality of LEDs and having a shape similar to that of a straight tube fluorescent lamp, on a fluorescent lamp mounting device to emit light. Is described.

  Patent Document 2 describes a fluorescent lamp circuit that enables an LED fluorescent lamp to be directly attached to an inverter-type fluorescent lamp fixture.

JP 2010-192242 A JP 2012-104466 A

  In the technique of Patent Document 1, the light source, that is, the straight tube fluorescent lamp type LED lighting device can be arranged only at a position where the straight tube fluorescent lamp is originally mounted. Even in the technique of Patent Document 2, the LED fluorescent lamp can be arranged only at a position where the fluorescent lamp is originally mounted. On the other hand, the present inventor considered that there is a need for improving the degree of freedom of light source arrangement when a light source is attached to a lighting fixture mounting apparatus such as an existing fluorescent lamp mounting fixture.

  An example of the problem to be solved by the present invention is that a light source can be mounted on an existing lighting fixture mounting apparatus such as a fluorescent lamp mounting fixture, and that the degree of freedom of light source placement is obtained.

The invention according to claim 1 includes a support portion elongated in one direction,
A holding part connected to the support part and holding a light source;
A drive circuit for driving the light source;
A pair of fixed parts respectively formed at both ends in the longitudinal direction of the support part;
With
Each of the pair of fixed parts is formed in a shape that can be attached to a base socket of a lighting fixture mounting apparatus to which a straight tube type lighting fixture is attached,
At least one of the pair of fixed parts is a power receiving terminal that receives power supplied from the base socket through the drive circuit to the light source,
The holding portion extends from the support portion in a direction intersecting with the longitudinal direction of the support portion, and drives to hold the light source at an end portion of the holding portion opposite to the support portion side. Device.

The invention according to claim 11 is a light source;
A support portion that is long in one direction;
A holding part connected to the support part and holding the light source;
A drive circuit for driving the light source;
A pair of fixed parts respectively formed at both ends in the longitudinal direction of the support part;
With
Each of the pair of fixed parts is formed in a shape that can be attached to a base socket of a lighting fixture mounting apparatus to which a straight tube type lighting fixture is attached,
At least one of the pair of fixed parts is a power receiving terminal that receives power supplied from the base socket through the drive circuit to the light source,
The holding portion extends from the support portion in a direction intersecting the longitudinal direction of the support portion, and emits light that holds the light source at an end of the holding portion opposite to the support portion side. Device.

It is a perspective view of the light-emitting device concerning an embodiment. It is a figure which shows the state which attached the light-emitting device which concerns on embodiment to the lighting fixture attachment apparatus, among these, (a) is front sectional drawing, (b) is a plane sectional view. It is a schematic diagram which shows the circuit structure of the light-emitting device which concerns on embodiment. FIG. 4A is a side sectional view showing a state in which the light emitting device according to the embodiment is attached to a lighting fixture mounting device with a reflector, and FIG. 4B is a diagram showing the light emitting device according to the comparative example with a reflector. It is a sectional side view which shows the state attached to the lighting fixture attachment apparatus. 1 is a perspective view of a light emitting device according to Example 1. FIG. It is a figure which shows the light source of the light-emitting device which concerns on Example 1, Among these, (a) is a front view, (b) is a bottom view. It is sectional drawing which shows an example of the structure of an organic EL element in case a light source is a surface light source containing an organic EL element. It is sectional drawing which shows the 1st example of the layer structure of an organic functional layer. It is sectional drawing which shows the 2nd example of the layer structure of an organic functional layer. 6 is a perspective view of a light emitting device according to Example 2. FIG. 6 is a side sectional view of a light emitting device according to Example 3. FIG. It is a sectional side view which shows the state which attached the light-emitting device which concerns on Example 1 to the lighting fixture attachment apparatus of the base light reverse Fuji type | mold for 2 lamps (when the space | interval between base sockets is wide). It is a sectional side view which shows the state which attached the light-emitting device which concerns on Example 3 to the base-light reverse Fuji type lighting fixture attachment apparatus for 2 lamps (when the space | interval of a socket is wide). It is a sectional side view which shows the state which attached the light-emitting device which concerns on Example 1 to the lighting fixture attachment apparatus of the base light reverse Fuji type | mold for 2 lamps (when the space | interval between base sockets is wide). It is a sectional side view which shows the state which attached the light-emitting device which concerns on Example 3 to the base-light reverse Fuji type lighting fixture attachment apparatus for 2 lamps (when the space | interval of a socket is wide). It is a sectional side view which shows the state which attached the light-emitting device which concerns on Example 4 to the base-light reverse Fuji type lighting fixture attachment apparatus for 2 lights. 10 is a front sectional view of a light emitting device according to Example 5. FIG. 6 is a perspective view of a light emitting device according to Example 5. FIG. FIG. 19A is a side sectional view of the light emitting device according to the sixth embodiment, and FIG. 19B is a perspective view of the light source of the light emitting device according to the sixth embodiment as viewed from below.

  Hereinafter, embodiments will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  FIG. 1 is a perspective view of a light emitting device 200 according to the embodiment. FIG. 2 is a view showing a state in which the light-emitting device according to the embodiment is attached to a lighting fixture attachment device, in which (a) is a front sectional view and (b) is a plan sectional view. In addition, illustration of the light source 20 is abbreviate | omitted in FIG.2 (b).

  The driving device 100 according to the present embodiment includes a support unit 10 that is long in one direction, a holding unit (for example, a pair of arms 30) that is connected to the support unit 10 and holds the light source 20, and the light source 20. A drive circuit to be driven and a pair of fixed portions 40 formed at both ends in the longitudinal direction of the support portion 10 are provided. Each of a pair of to-be-fixed parts 40 is formed in the shape which can be mounted | worn with the nozzle | cap | die socket 520 of the lighting fixture attachment apparatus 500 with which a straight tube | pipe type lighting fixture is mounted | worn. At least one of the pair of fixed portions 40 is a power receiving terminal that receives power supplied from the base socket 520 to the light source 20 via the drive circuit. The holding unit extends from the support unit 10 in a direction intersecting the longitudinal direction of the support unit 10, and holds the light source 20 at the end of the holding unit opposite to the support unit 10 side. Note that the light source 20 driven (emitted) by the driving device 100 can be used as a light source of a display, a lighting device, or an optical communication device, for example.

  In addition, the light emitting device 200 according to the present embodiment includes the driving device 100 and the light source 20 according to the present embodiment. That is, the light emitting device 200 includes a light source 20, a support 10 that is long in one direction, a holding unit (for example, a pair of arms 30) that is connected to the support 10 and holds the light source 20, and the light source 20. A drive circuit to be driven and a pair of fixed portions 40 formed at both ends in the longitudinal direction of the support portion 10 are provided. Each of a pair of to-be-fixed parts 40 is formed in the shape which can be mounted | worn with the nozzle | cap | die socket 520 of the lighting fixture attachment apparatus 500 with which a straight tube | pipe type lighting fixture is mounted | worn. At least one of the pair of fixed portions 40 is a power receiving terminal that receives power supplied from the base socket 520 to the light source 20 via the drive circuit. The holding unit extends from the support unit 10 in a direction intersecting the longitudinal direction of the support unit 10, and holds the light source 20 at the end of the holding unit opposite to the support unit 10 side.

  The support part 10 is formed in a rod shape, for example. The longitudinal dimension of the support part 10 is set to a dimension equivalent to the longitudinal dimension of a straight tube type lighting fixture such as a straight tube type fluorescent lamp that is originally attached to the lighting fixture mounting apparatus 500. Here, the straight tube fluorescent lamp means a straight tube fluorescent lamp or a special straight tube fluorescent lamp (Hf type fluorescent lamp or the like). In addition, although the dimension (thickness of the support part 10) of the transversal direction of the support part 10 is not specifically limited, It is desirable that the support part 10 is a thickness which can be hold | gripped with one hand.

  Fixed portions 40 are respectively formed at both ends of the support portion 10. Each to-be-fixed part 40 has a pair of pin 41, for example.

  Here, caps are provided at both ends of a general straight tube fluorescent lamp. Each base has a pair of base pins. The pair of pins 41 of the fixed part 40 are formed in the same shape as the cap pins formed on the caps at both ends of a general straight tube fluorescent lamp, and are arranged at the same interval as the interval between the cap pins. .

  As described above, at least one of the pair of fixed portions 40 is a power receiving terminal that receives power supplied from the base socket 520 to the light source 20 via the drive circuit. For this reason, the pin 41 of at least one of the fixed parts 40, that is, the pin 41 constituting the power receiving terminal is made of a conductor such as metal. Moreover, the pin 41 which comprises a power receiving terminal is electrically connected with respect to the light emitting element (after-mentioned) of the light source 20 via the drive circuit.

  The light emitting device 200 has at least one arm 30. 1 and FIG. 2 show an example in which the light emitting device 200 has two arms 30. The extending direction of the arm 30 only needs to intersect the longitudinal direction of the support portion 10. 1 and 2 show an example in which the extending direction of the arm 30 is orthogonal to the longitudinal direction of the support portion 10. For example, the arm 30 is connected to the lower surface of the support portion 10 and extends downward from the lower surface of the support portion 10. The two arms 30 are formed to have the same length. The two arms 30 are arranged at different positions in the longitudinal direction of the support portion 10. For example, the light source 20 is held by the end portion of the arm 30 opposite to the support portion 10 side (for example, the lower end portion of the arm 30).

  The light source 20 includes a light emitting element that emits light when power is input. Examples of the light emitting element include an organic EL element, an inorganic EL element, an LED, and a fluorescent lamp. The light source 20 may be a surface light source (a light source having a planar light emitting surface) or other light source. As the surface light source, in addition to those having an organic EL element or an inorganic EL element as a light emitting element, those formed by combining an LED and a light guide plate, or those formed by arranging a plurality of LEDs in an array form Can be mentioned. Examples of the shape of the light source 20 other than the surface light source include a straight tube type, a round shape (annular shape), and a ball shape.

  FIGS. 1 and 2 show an example in which the light source 20 is a surface light source and the light source 20 is held horizontally by an arm 30. In this case, the light emitting surface of the light source 20 may be downward or upward. In the former case, for example, direct illumination can be performed, and in the latter case, for example, indirect illumination can be performed. The light source 20 may have both a downward light emitting surface and an upward light emitting surface. The light emitting surface means a surface that emits light in the light source 20.

  The driving device 100 is preferably as light as possible. In the driving device 100, members other than terminals, wirings, circuit boards, and the like are preferably formed of a lightweight material such as resin. Moreover, when using a metal as a material of the drive device 100, it is preferable to use a lightweight metal material such as aluminum or magnesium.

  FIG. 3 is a schematic diagram illustrating a circuit configuration of the light emitting device 200 according to the embodiment. Here, a circuit configuration example of the light emitting device 200 will be described by taking as an example the case where the light source 20 includes a light emitting element that operates at a voltage lower than 100 V of commercial power, such as an organic EL light emitting element or an LED.

As shown in FIG. 3, the drive circuit of the light emitting device 200 includes an AC / DC converter 51 and a DC / DC converter 52. The AC / DC converter 51 converts AC power supplied from a pin 41 serving as a power receiving terminal into DC power. That is, the AC / DC converter 51 generates DC power. The DC / DC converter 52 steps down the voltage of the DC power generated by the AC / DC converter 51 and supplies it to the light source 20. FIG. 3 shows an example in which both of the fixed portions 40 at both ends of the support portion 10 constitute a power receiving terminal.
Here, in the lighting fixture mounting apparatus 500, for example, a ballast and a preheating circuit (glow starter) may be provided. In that case, an excessive voltage is applied to the light emitting device 200 by changing the wiring in the lighting fixture mounting apparatus 500 so that the ballast and the preheating circuit are excluded from the circuit in the lighting fixture mounting apparatus 500. Can be suppressed. Alternatively, the driving circuit of the light emitting device 200 may be a known circuit for connecting and using a DC driving light source such as an LED to the existing lighting fixture mounting device 500. As an example, the drive circuit may include a capacitor, a rectifier unit (AC / DC converter), and a constant current unit (DC / DC converter), similarly to the fluorescent lamp circuit described in Patent Document 2.

  The drive circuit may be provided in the support unit 10 or may be fixed to the outer surface of the support unit 10. Alternatively, the drive circuit may be provided in the holding unit or fixed to the outer surface of the holding unit. Alternatively, the drive circuit may be provided integrally with the light source 20.

  Next, the lighting fixture mounting apparatus 500 will be described with reference to FIG.

  The luminaire mounting device 500 is a device to which a straight tube luminaire such as a straight tube fluorescent lamp is mounted. The luminaire mounting device 500 includes a main body 510 and a pair of base sockets 520 provided on the main body 510. The main body 510 is installed at a high place such as a ceiling, for example.

  The pair of base sockets 520 are disposed to face each other. The facing distance between the pair of base sockets 520 corresponds to the longitudinal dimension of the straight tube type lighting fixture attached to the lighting fixture mounting apparatus 500.

  Each of the base sockets 520 is formed with a pair of fixing holes 521. Each fixing hole 521 is formed with a power supply terminal that comes into contact with a cap pin formed at both ends of the straight tube type lighting fixture. The straight tube type lighting fixture is inserted into the fixing hole 521 of each of the base sockets 520 so that the straight tube type lighting fixture is attached to the lighting fixture mounting apparatus 500 and the base for the lighting fixture mounting apparatus 500 is also provided. The pin and the power supply terminal in the fixing hole 521 are electrically connected to each other.

  Note that the lighting fixture mounting apparatus 500 may be configured to be capable of mounting a plurality of straight tube lighting fixtures. In this case, the luminaire mounting device 500 has a plurality of pairs of base sockets 520.

  It should be noted that by operating an operation switch (not shown), AC power is supplied from the AC power source such as a commercial power source to the lighting fixture mounting apparatus 500, and the AC power is not supplied to the lighting fixture mounting apparatus 500. Switching between states is possible.

  Next, the operation will be described.

  First, the light emitting device 200 is attached to the lighting fixture attaching device 500. For this purpose, the support portion 10 is attached to the lighting fixture mounting apparatus 500 in the same manner as the operation of mounting the straight tube type lighting fixture to the lighting fixture mounting apparatus 500. That is, as shown in FIG. 2, each pin 41 of one fixed part 40 of the support part 10 is fitted into a pair of fixing holes 521 of one base socket 520 of the lighting fixture mounting apparatus 500 and supported. Each of the pins 41 of the other fixed part 40 of the part 10 is fitted into the pair of fixing holes 521 of the other base socket 520 of the luminaire mounting device 500, and each fixed part 40 is inserted into each base socket 520. Fix it.

  Thereby, the pin 41 contacts the power supply terminal in the fixing hole 521 of each base socket 520. By operating the operation switch in this state and supplying AC power from the AC power source to the lighting fixture mounting apparatus 500, this AC power is input from the power supply terminal of the base socket 520 to the pin 41 of the light emitting device 200. The This alternating current power is converted into direct current power by the AD / DC converter 51, is further increased in voltage by the DC / DC converter 52, and then supplied to the light emitting element of the light source 20. The light emitting element included in the light source 20 emits light by direct current power supplied from the DC / DC converter 52.

  Note that the light emitting device 200 can be easily detached from the lighting fixture mounting apparatus 500 by performing the same operation as that for removing the straight tube lighting fixture from the lighting fixture mounting apparatus 500.

  FIG. 4A is a side cross-sectional view showing a state in which the light emitting device 200 according to the embodiment is attached to a lighting fixture attaching device 500 with a reflector, and FIG. 4B is a diagram showing the light emitting device according to the comparative example as a reflector. It is a sectional side view which shows the state attached to the attached lighting fixture attachment apparatus 500. 4A and 4B, in order to make the shape of the base socket 520 easier to understand, only the base socket 520 is hatched, and other components are not hatched. 4A and 4B are the main body portion 510 including the reflector 511, the support portion 10, and the light source 20, but hatching is omitted for these portions. The lighting fixture mounting apparatus 500 often includes a reflector 511. The reflection plate 511 is a member generally called an umbrella, and reflects light from a straight tube lighting fixture. The reflection plate 511 is composed of a pair of plate-shaped portions that are inclined in opposite directions. The facing distance between these plate-like portions gradually increases downward. That is, the lighting fixture mounting apparatus 500 includes a reflecting plate 511 that reflects light from the straight tube lighting fixture, and the reflecting plates 511 are spaced apart from each other in the irradiation direction of the light from the straight tube lighting fixture. A pair of plate-like portions arranged in this manner.

  The light emitting device according to the comparative example illustrated in FIG. 4B is different from the light emitting device 200 according to the embodiment in that the arm 30 is not provided, and is otherwise the same as the light emitting device 200 according to the embodiment. It is configured. In this light emitting device, the light source 20 is directly fixed to the lower surface of the support portion 10. Since the light emitting device according to the comparative example does not have the arm 30, when the size of the light source 20 is large, the light source 20 and the reflection plate 511 interfere with each other, and cannot be attached to the lighting fixture attachment device 500 with the reflection plate. In some cases.

  In contrast, in the case of the light emitting device 200 according to the present embodiment, as shown in FIG. 4A, the arm 30 is provided, and the length of the arm 30 is such that the light source 20 is held by the arm 30. And in the state which attached the light-emitting device 200 to the lighting fixture attachment apparatus 500 with a reflecting plate, it is set to the length which the light source 20 and a pair of plate-shaped part (reflecting plate 511) do not interfere. For this reason, regardless of the size and shape of the light source 20, the light emitting device 200 can be easily attached to the luminaire attachment device 500 with the reflector. In particular, when the light source 20 is a surface light source, the light source 20 can be used by being attached to a lighting fixture mounting apparatus 500 with a reflecting plate while suppressing interference with the reflecting plate 511. More specifically, the arm 30 is set to such a length that its lower end protrudes downward from the reflector 511.

As described above, according to the present embodiment, the driving device 100 (the light emitting device 200) drives the light source 20 by the support unit 10 that is long in one direction, the arm 30 that is connected to the support unit 10 and holds the light source 20. And a pair of fixed parts 40 formed at both ends in the longitudinal direction of the support part 10. Each of a pair of to-be-fixed parts 40 is formed in the shape which can be mounted | worn with the nozzle | cap | die socket 520 of the lighting fixture attachment apparatus 500 with which a straight tube | pipe type lighting fixture is mounted | worn. At least one of the pair of fixed portions 40 is a power receiving terminal that receives power supplied from the base socket 520 to the light source 20 via the drive circuit. The arm 30 extends from the support portion 10 in a direction intersecting the longitudinal direction of the support portion 10. Therefore, the light source 20 can be arrange | positioned in the position different from the position where a straight tube | pipe type lighting fixture is originally attached. Thereby, the light source 20 can be attached to the lighting fixture mounting apparatus 500 and used without causing the light source 20 to interfere with the lighting fixture mounting apparatus 500. Further, as the light source 20, a light source having a shape different from that of the straight tube luminaire that is originally attached to the luminaire attachment device 500 (a surface light source or the like) can be used. Further, by providing an appropriate drive circuit, the light source 20 can be of a type that has a different drive system from the straight tube type luminaire that is originally attached to the luminaire attachment device 500.
If a plurality of types of driving devices 100 (or light emitting devices 200) having different dimensions of the arms 30 in the extending direction of the arms 30 are prepared, the driving device 100 (or the light emitting device) having the arms 30 having a desired size among them. 200) is attached to the luminaire mounting device 500, so that the degree of freedom in selecting the arrangement of the light source 20 can be obtained.
Similarly, if a plurality of types of drive devices 100 (or light-emitting devices 200) having different extending directions of the arms 30 from the support portion 10 are prepared, the desired drive device 100 (or light-emitting device 200) is used as a lighting fixture. By attaching to the attachment apparatus 500, the freedom degree of selection of arrangement | positioning of the light source 20 is obtained.

  Thus, according to the present embodiment, the light source 20 can be attached to the lighting fixture mounting apparatus 500 such as an existing fluorescent lamp mounting fixture, and the degree of freedom of arrangement of the light source 20 can be obtained.

Example 1
FIG. 5 is a perspective view of the light emitting device 200 according to the first embodiment. The light-emitting device 200 is different from the light-emitting device 200 according to the above-described embodiment in the points described below, and is otherwise configured in the same manner as the light-emitting device 200 according to the above-described embodiment. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100.

  In the case of the present embodiment, the arm 30 includes a hinge portion (rotating mechanism portion) 60 as a rotating mechanism portion that changes the irradiation direction of light from the light source 20 to the support portion 10. The arm 30 holds the light source 20 by being connected to the light source 20 through the hinge portion 60. In addition, the hinge part 60 is a uniaxial hinge, for example. By moving the light source 20 around the rotation axis of the hinge part 60, the posture of the light source 20 can be arbitrarily changed, and the irradiation direction of the light from the light source 20 can be changed.

  The arm 30 includes, for example, a hinge portion 60 at a tip portion thereof, and connects the rod-shaped main body portion 31 of the arm 30 and the light source 20 so as to be rotatable relative to each other. However, as will be described later, the arm 30 includes a hinge portion 60 at a base end portion thereof, and the main body portion 31 and the support portion 10 may be coupled to each other so as to be rotatable (see FIG. 12).

  Also in the present embodiment, the light emitting device 200 has two arms 30. Each arm 30 includes a hinge portion 60. Further, the rotation axes of the hinge portions 60 of the arms 30 are arranged coaxially with each other and parallel to the longitudinal direction of the support portion 10. That is, the holding unit (for example, composed of two arms 30) includes a plurality of rotation mechanism units, and the rotation axes of the plurality of rotation mechanism units are arranged coaxially with each other and parallel to the longitudinal direction of the support unit 10. Yes. Thereby, the attitude | position of the light source 20 can be changed by moving the light source 20 around the rotating shaft parallel to the longitudinal direction of the support part 10.

  The light source 20 is a surface light source. The arm 30 extends in a direction intersecting the light emitting surface of the light source 20 that is a surface light source (specifically, for example, a direction orthogonal). Therefore, the direction in which the light emitting surface of the light source 20 faces can be a direction including the extending direction of the arm 30 as a direction component (or the opposite direction). Specifically, for example, the light emitting surface can be directed in the extending direction of the arm 30.

  Further, the direction of rotation of the light source 20 by the hinge unit 60 is one direction (the direction of arrow A in FIG. 5) and the opposite, based on the state in which the light irradiation direction from the light source 20 and the extending direction of the arm 30 coincide. Direction (in the direction of arrow AB in FIG. 5).

  6A and 6B are diagrams illustrating the light source 20 of the light emitting device 200 according to the first embodiment, in which (a) is a front view and (b) is a bottom view. As shown in FIG. 6, the light source 20 includes a fixed plate 21 and a light emitting element 22 fixed to the fixed plate 21. 6 shows an example in which the light emitting element 22 is fixed to the lower surface of the fixed plate 21, the light emitting element 22 may be fixed to the upper surface of the fixed plate 21, or the upper surface of the fixed plate 21. And it may be fixed to both the lower surface.

  The light source 20 is formed in a flat panel shape, for example. As an example, the planar shape of the light source 20 may be a rectangular shape, but may be other polygonal shapes (pentagonal, hexagonal, etc.), or a curved outer shape such as a circle, an ellipse, or an oval. It may be a thing. The light source 20 may have a shape whose outer shape includes a curve and a straight line.

  The light emitting element 22 is, for example, an organic EL element. That is, the light source 20 is a surface light source including an organic EL light emitting element, for example.

  FIG. 7 is a cross-sectional view showing an example of the structure of the organic EL element when the light source 20 includes an organic EL element as the light emitting element 22.

  The organic EL element includes, for example, a translucent substrate 110, a translucent first electrode 130, an organic functional layer 140, and a second electrode 150. The first electrode 130 is disposed on one surface side (the lower surface side in FIG. 7) of the translucent substrate 110. The organic functional layer 140 is disposed on the opposite side (lower side in FIG. 7) from the translucent substrate 110 with respect to the first electrode 130. The second electrode 150 is disposed on the opposite side (lower side in FIG. 7) from the first electrode 130 with respect to the organic functional layer 140. Note that the translucent substrate 110 and the first electrode 130 may be in contact with each other, or another layer may exist between them. Similarly, the first electrode 130 and the organic functional layer 140 may be in contact with each other, or another layer may exist between them. Similarly, the organic functional layer 140 and the second electrode 150 may be in contact with each other, or other layers may exist between them. Further, a sealing layer may be formed on the lower surface of the second electrode 150 as necessary.

  The translucent substrate 110 is a plate-like member made of a translucent material such as glass or resin. For example, the upper surface of the translucent substrate 110, that is, the surface of the translucent substrate 110 opposite to the organic functional layer 140 is a flat light extraction surface. This light extraction surface is in contact with air (refractive index 1) filling the light emission space. Note that a light extraction film such as a light diffusion film is attached to the upper surface of the light transmissive substrate 110, and the upper surface of the light extraction film may constitute a light extraction surface.

  The first electrode 130 may be a transparent electrode made of a metal oxide conductor such as ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide). However, the first electrode 130 may be a metal thin film that is thin enough to transmit light. The organic functional layer 140 includes at least a light emitting layer. The second electrode 150 is a reflective electrode made of a metal film such as Al or Ag. The second electrode 150 reflects light traveling from the organic functional layer 140 toward the second electrode 150 toward the translucent substrate 110.

  When a voltage is applied between the first electrode 130 and the second electrode 150, the light emitting layer of the organic functional layer 140 emits light. The translucent substrate 110, the first electrode 130, and the organic functional layer 140 all transmit at least part of the light emitted from the light emitting layer of the organic functional layer 140. Part of the light emitted from the light emitting layer is emitted (extracted) from the light extraction surface of the translucent substrate 110 to the outside of the light emitting element (that is, the light emission space).

  The emission color of the organic EL element, that is, the emission spectrum (the wavelength spectrum of the emitted light) is not particularly limited. The organic EL element may have a structure that can change the emission color to various colors, or may always emit light of a single color such as white. Further, the organic EL element may be divided into a plurality of regions and set to different emission colors for each region.

  Hereinafter, a more specific example of the layer structure of the organic functional layer 140 will be described.

  FIG. 8 is a cross-sectional view showing a first example of the layer structure of the organic functional layer 140. The organic functional layer 140 has a structure in which a hole injection layer 141, a hole transport layer 142, a light emitting layer 143, an electron transport layer 144, and an electron injection layer 145 are stacked in this order. That is, the organic functional layer 140 is an organic electroluminescence light emitting layer. Note that instead of the hole injection layer 141 and the hole transport layer 142, one layer having the functions of these two layers may be provided. Similarly, instead of the electron transport layer 144 and the electron injection layer 145, one layer having the functions of these two layers may be provided.

  The light emitting layer 143 is, for example, a layer that emits red light, a layer that emits blue light, or a layer that emits green light. In this case, in a plan view, a region having a light emitting layer 143 that emits red light, a region having a light emitting layer 143 that emits green light, and a region having a light emitting layer 143 that emits blue light are repeatedly provided. May be. In this case, when each region emits light simultaneously, the light emitting device emits light in a single light emission color such as white. Further, it may be possible to emit light in various light spectra by performing control for adjusting the balance of the light amounts of the red, green, and blue regions.

  Note that the light-emitting layer 143 may be configured to emit light in a single emission color such as white by mixing materials for emitting a plurality of colors.

  FIG. 9 is a cross-sectional view showing a second example of the layer structure of the organic functional layer 140. The light emitting layer 143 of the organic functional layer 140 has a structure in which light emitting layers 143a, 143b, and 143c are stacked in this order. The light emitting layers 143a, 143b, and 143c emit light of different colors (for example, red, green, and blue). The light emitting layers 143a, 143b, and 143c emit light at the same time, so that the light emitting device emits light in a single emission color such as white. Further, it may be possible to emit light in various light spectra by performing control to adjust the balance of the light amounts of the red, green, and blue light emitting layers 143a, 143b, and 143c.

  Here, in general, since the longitudinal dimension of the straight tube type lighting fixture is determined to be several lengths according to the standard, the facing interval between the pair of base sockets 520 is set to any one of the lengths. Yes. Therefore, the longitudinal dimension of the support portion 10 is also set to a dimension corresponding to any one of several lengths defined by the standard. Specific length dimensions of the straight tube type lighting fixture are 134.5 mm, 210.5 mm, 287 mm, 330 mm, 436 mm, 500 mm, 580 mm, 685 mm, 700 mm, 835 mm, 630 mm, 830 mm, 100 mm 0, 1198 mm, 1498.5 mm. 2367 mm or 588.5 mm.

  Further, the shape and dimensions of the fixing hole 521 of the base socket 520 are also defined by the standard. The standard is, for example, JIS C 7709-1. The base socket 520 has a standard size conforming to JIS C 7709-1, for example. Further, the pin 41 of the fixed portion 40 is formed in a shape suitable for a base socket 520 having a standard size conforming to JIS C7709-1. The base socket 520 is, for example, a G13 base socket, a G5 base socket, or an R17d base socket. Further, the pin 41 of the fixed portion 40 is formed in the same shape as a base pin of a G13 base, a base pin of a G5 base, or a base pin of an R17d base.

  According to this example, in addition to the same effects as the above embodiment, the following effects can be obtained.

  Since the arm 30 includes the hinge part 60 that changes the irradiation direction of the light from the light source 20, the posture of the light source 20 is arbitrarily changed by moving the light source 20 around the rotation axis of the hinge part 60. The irradiation direction of the light from 20 can be changed.

  The holding portion (for example, composed of two arms 30) includes a plurality of hinge portions 60, and the rotation axes of the plurality of hinge portions 60 are arranged coaxially with each other and parallel to the longitudinal direction of the support portion 10. Yes. Therefore, the posture of the light source 20 can be changed by moving the light source 20 around a rotation axis parallel to the longitudinal direction of the support portion 10.

  The light source 20 is a surface light source including an organic EL element. Therefore, the light source 20 having the organic EL element, which is a light emitting element different from the fluorescent lamp, can be attached to the lighting fixture mounting apparatus 500 to which a lighting fixture such as a fluorescent lamp is originally attached.

  Since the light source 20 is a surface light source and the arm 30 extends in a direction intersecting the light emitting surface of the surface light source, the direction in which the light emitting surface of the light source 20 faces is the direction component of the extending direction of the arm 30. Can be included (or vice versa).

  The light source 20 is a surface light source, and the direction of rotation of the light source 20 by the hinge unit 60 is one direction and vice versa with reference to a state in which the light irradiation direction from the light source 20 coincides with the extending direction of the arm 30. Directions and are included. Therefore, the direction of the light source 20 can be changed with a high degree of freedom.

(Example 2)
FIG. 10 is a perspective view of the light emitting device 200 according to the second embodiment. The light emitting device 200 according to the present embodiment is different from the light emitting device 200 according to the first embodiment in the points described below, and is otherwise configured in the same manner as the light emitting device 200 according to the first embodiment. Has been. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100.

  In this embodiment, the light source 20 that is a surface light source is divided into a plurality of portions. FIG. 10 shows an example in which the light source 20 includes two parts (a first part 20a and a second part 20b). Each portion 20 a, 20 b of the light source 20 is individually supported by the support unit 10 via one or more arms 30. The arms 30 that hold the portions 20a and 20b have hinge portions 60, respectively.

  According to the present embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since the arm 30 holding each part 20a, 20b has the hinge part 60, respectively, the direction of each part 20a, 20b can be changed separately.

(Example 3)
FIG. 11 is a side sectional view of the light emitting device 200 according to the third embodiment. In FIG. 11 and FIGS. 12 to 16 to be described later, in order to make the shape of the base socket 520 easier to understand, only the base socket 520 is hatched, and other components are not hatched. 11 to 16 are the main body portion 510, the support portion 10, and the light source 20, but hatching is omitted for these portions. The light emitting device 200 according to the present embodiment is different from the light emitting device 200 according to the first embodiment in the points described below, and is otherwise configured in the same manner as the light emitting device 200 according to the first embodiment. Has been. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100.

  In the case of the present embodiment, the arm 30 includes a plurality of hinge portions 60 arranged at different positions in the extending direction of the arm 30.

  Specifically, the arm 30 includes two hinge portions 60. The rotation axes of the two hinge portions 60 are parallel to each other. The rotation axes of the two hinge parts 60 are parallel to the longitudinal direction of the support part 10. One of the two hinge parts 60 (upper hinge part 60) connects the rod-shaped main body part 31 of the arm 30 and the support part 10 so as to be rotatable relative to each other, and the other (lower hinge part 60) is The main body 31 and the light source 20 are coupled to each other so as to be rotatable. For this reason, the main body 31 can be rotated relative to the support 10 around the rotation axis of the one hinge 60. Further, the light source 20 can be rotated relative to the main body portion 31 around the rotation axis of the other hinge portion 60.

  In addition, the planar shape of the light source 20 shall be a rectangular shape.

  FIG. 12 shows the light emitting device 200 according to the first embodiment described above with respect to the lighting fixture mounting apparatus 500 when the lighting fixture mounting apparatus 500 is a two-lamp lighting fixture mounting apparatus (two-lamp base light reverse Fuji type). It is a sectional side view which shows the state which attached two.

  As shown in FIG. 12, the bottom surface of the main body 510 of the two-lamp base light reverse Fuji type lighting fixture mounting apparatus 500 has a downwardly convex shape. The lower surface of the main body 510 has a pair of inclined surfaces 510a and 510b inclined in opposite directions. A pair of cap sockets 520 is provided on each of the inclined surfaces 510a and 510b. The pair of base sockets 520 provided on the inclined surface 510a face each other, and the pair of base sockets 520 provided on the inclined surface 510b face each other.

  As shown in FIG. 12, when two light-emitting devices 200 according to the first embodiment are attached to the two-lamp base light reverse Fuji type lighting fixture mounting device 500, the base socket 520 and the inclined surface 510b on the inclined surface 510a side. If the distance D from the side base socket 520 is wide, a gap may be formed between the light sources 20 of the two light emitting devices 200. In this case, if the light sources 20 of the two light emitting devices 200 are arranged with no gap between each other, the two light sources 20 have a C-shape and cannot be horizontally arranged. 12 shows an example in which the hinge part 60 is arranged at the upper end part of the arm 30, but when the hinge part 60 is arranged at the lower end part of the arm 30, there is a gap between the light sources 20. It becomes even wider.

  FIG. 13 is a side cross-sectional view illustrating a state in which the light-emitting device 200 according to the third embodiment is mounted on a two-lamp base light reverse Fuji-type lighting fixture mounting apparatus 500. In FIG. 13, it is assumed that the configuration (dimensions and the like of each component) other than the number of hinge portions 60 included in each arm 30 is set to be the same as that in FIG.

  When two light-emitting devices 200 according to the present embodiment are attached to the two-lamp base light reverse Fuji type lighting fixture attachment device 500, as shown in FIG. By adjusting the angle, although depending on the size of the light source 20, the light sources 20 of the two light emitting devices 200 can be arranged horizontally and in the same plane with no gap therebetween. Specifically, in the example of FIG. 13, the angle of the hinge portion 60 is adjusted so that the arms 30 of the two light emitting devices 200 are X-legged.

  FIG. 14 is a side cross-sectional view illustrating a state in which the light-emitting device 200 according to the first embodiment is mounted on a two-lamp baselight reverse Fuji type lighting fixture mounting apparatus 500. In FIG. 14, the distance D between the base socket 520 on the inclined surface 510a side and the base socket 520 on the inclined surface 510b side is narrower than that shown in FIG. In this case, as shown in FIG. 14, the two light sources 20 may be V-shaped and cannot be made horizontal.

  FIG. 15 is a side cross-sectional view illustrating a state in which the light emitting device 200 according to the third embodiment is mounted on a two-lamp baselight reverse Fuji type lighting fixture mounting apparatus 500. In FIG. 15, it is assumed that the configuration (dimensions and the like of each component) other than the number of hinge portions 60 included in each arm 30 is set to be the same as that in FIG.

  In this case, as shown in FIG. 15, the light sources 20 of the two light emitting devices 200 can be horizontally arranged in the same plane with no gap therebetween. Specifically, in the example of FIG. 15, the angle of the hinge portion 60 is adjusted so that the arms 30 of the two light emitting devices 200 are O-shaped.

  According to the present embodiment, the same effects as those of the first embodiment can be obtained, and the arm 30 includes a plurality of hinge portions 60 arranged at different positions in the extending direction of the arm 30, so that the light source Twenty postures and arrangements can be changed with a higher degree of freedom.

Specifically, for example, when two light emitting devices 200 are attached to a two-lamp base light reverse Fuji type lighting fixture mounting device 500, the light emitting surfaces of the two light sources 20 are arranged in parallel and in the same plane. In addition, the two light sources 20 can be arranged with no gap therebetween. Thereby, while being able to improve the designability of the light-emitting device containing the two light sources 20, luminous efficiency can be improved.
Further, when there are a plurality of types of dimensions of the light source 20, the light emitting surfaces of the two light sources 20 are arranged in parallel and in the same plane regardless of the dimensions of the light source 20, and the two light sources 20 are spaced from each other. It can be arranged without.

Example 4
FIG. 16 is a side cross-sectional view illustrating a state in which the light emitting device according to Example 4 is mounted on a two-lamp base light reverse Fuji type lighting fixture mounting apparatus 500. Here, the light emitting device according to the present embodiment is configured to include two light emitting devices 200 shown in FIG. Each light-emitting device 200 is different from the light-emitting device 200 according to Example 3 in the points described below, and is otherwise configured in the same manner as the light-emitting device 200 according to Example 1 described above. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100. The drive device according to the present embodiment includes two drive devices 100 shown in FIG.

  The light emitting device according to the present embodiment includes a connecting portion 70 that connects the two light sources 20 in a state of being in contact with each other. That is, the driving device according to the present embodiment is connected to the first driving device 100 (for example, the driving device 100 on the left side in FIG. 16) and the second driving device 100 (for example, the driving device 100 on the right side in FIG. 16). Part 70. The connecting unit 70 connects the first light source 20 held by the arm 30 of the first driving device 100 and the second light source 20 held by the arm 30 of the first driving device 100.

  Each of the first light source 20 and the second light source 20 is a planar surface light source. The angle formed by the two light sources 20 connected to each other by the connecting portion 70 is kept constant. Specifically, for example, the connecting unit 70 includes the first light source 20 and the second light source 20 so that the first light source 20 and the second light source 20 are positioned horizontally and in the same plane. The light source 20 is connected and fixed to each other (the angle formed by the two light sources 20 is 180 degrees).

  The connecting portion 70 is fixed to each of the first light source 20 and the second light source 20. The aspect which fixes the connection part 70 with respect to the 1st light source 20 and the 2nd light source 20, respectively is not limited. For example, it may be fixed using a fastening member such as a screw, or may be fixed by engagement or the like.

According to the present embodiment, the same effects as those of the first embodiment can be obtained, and the light emitting device includes the connecting portions 70 that connect the two light sources 20 that are surface light sources, respectively. By connecting the light source 20 via the connecting portion 70, the angle and position of each light source 20 are uniquely determined. Therefore, it is not necessary to adjust the angle and position of the light source 20, and the light emitting device can be easily attached. .
Note that if the two light sources 20 are connected to each other by the connecting portion 70, the two light sources 20 can be maintained in contact with each other by the connecting portion 70. Therefore, the color unevenness of the light emission in the area | region where the two light sources 20 are arrange | positioned can be suppressed. On the other hand, if the two light sources 20 are connected in a state of being separated from each other by the connecting portion 70, there is an advantage that heat can be radiated from the gap between the two light sources 20.

(Example 5)
FIG. 17 is a front sectional view of the light emitting device 200 according to the fifth embodiment, and FIG. 18 is a perspective view of the light emitting device 200 according to the fifth embodiment. The light-emitting device 200 according to the present example is different from the light-emitting device 200 according to the above-described embodiment in the points described below, and is otherwise configured in the same manner as the light-emitting device 200 according to the above-described embodiment. Yes. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100.

  In the above, the example in which the holding unit is configured by a plurality of or a single arm 30 has been described. On the other hand, in the case of the present embodiment, the holding unit has a plurality or a single arm 30 and a holding frame 32 supported by the arm 30, and holds the light source 20 by the holding frame 32.

  The holding frame 32 detachably holds the light source 20. That is, the holding unit holds the light source 20 detachably.

  The holding frame 32 includes, for example, a main body 321 and a plurality of holding claws 322. The main body 321 is formed in a flat plate shape. A holding recess 321 a that holds the light source 20 is formed on the lower surface of the main body 321. The holding claw 322 hangs downward from the peripheral edge of the holding frame 321 and is engaged with the light source 20 in the state of being held in the holding recess 321a, whereby the light source 20 is received in the holding recess 321a. To maintain. The holding claw 322 is configured to be elastically deformable, and engages with the light source 20 by pushing the light source 20 into the holding recess 321a. Further, the light source 20 can be detached from the holding frame 321 by elastically deforming the holding claw 322 in the direction in which the holding claw 322 is disengaged from the light source 20.

  According to the present example, the same effect as the above embodiment can be obtained, and the holding unit detachably holds the light source 20, so that the light source 20 can be easily replaced when the light source 20 deteriorates. be able to.

(Example 6)
FIG. 19A is a side sectional view of the light emitting device 200 according to the sixth embodiment, and FIG. 19B is a perspective view of the light source 20 of the light emitting device 200 according to the sixth embodiment as viewed from below. The light-emitting device 200 according to the present example is different from the light-emitting device 200 according to the above-described embodiment in the points described below, and is otherwise configured in the same manner as the light-emitting device 200 according to the above-described embodiment. Yes. In the case of the present embodiment, the light emitting device 200 includes the light source 20 and the driving device 100.

  In the above, the example in which the light source 20 is a flat plate when the light source 20 is a surface light source has been described. On the other hand, in this embodiment, the light source 20 is a surface light source and has a curved (curved) light emitting surface.

  By using a flexible organic EL element as the light emitting element 22, the light source 20 having a curved light emitting surface can be easily manufactured.

  FIG. 19 shows an example in which the light emitting surface has a semicylindrical shape. In this case, the light from each light emission point in the cross section shown to Fig.19 (a) can be concentrated on one point. The light emitting surface may have another curved shape.

  According to the present embodiment, the same effect as in the first embodiment can be obtained. Moreover, since the light source 20 has a curved light emitting surface, the light emitting surface can have a shape more suited to the purpose.

  As mentioned above, although embodiment and the Example were described with reference to drawings, these are illustrations of this invention and can also employ | adopt various structures other than the above.

  For example, in the above description, the uniaxial hinge is exemplified as the rotation mechanism unit. However, the rotation mechanism unit may be a multi-axis hinge such as a biaxial hinge or a ball joint.

  Moreover, the support part 10 may be comprised so that the longitudinal dimension of the said support part 10 is adjustable. In this case, the support unit 10 includes, for example, an outer tube and an inner tube inserted into the outer tube, and the inner tube can be fed out from the end of the outer tube by an arbitrary amount. The longitudinal dimension of the support portion 10 may be set to any one of a plurality of stepwise lengths, or may be set to any continuous length. May be.

DESCRIPTION OF SYMBOLS 10 Support part 20 Light source 22 Light emitting element 30 Arm (it comprises a holding part)
40 Fixed part 41 Pin 60 Hinge part (rotating mechanism part)
70 connecting unit 100 driving device 200 light emitting device 500 lighting fixture mounting device 511 reflector 520 base socket

Claims (11)

A support portion that is long in one direction;
A holding part connected to the support part and holding a light source;
A drive circuit for driving the light source;
A pair of fixed parts respectively formed at both ends in the longitudinal direction of the support part;
With
Each of the pair of fixed parts is formed in a shape that can be attached to a base socket of a lighting fixture mounting apparatus to which a straight tube type lighting fixture is attached,
At least one of the pair of fixed parts is a power receiving terminal that receives power supplied from the base socket through the drive circuit to the light source,
The holding portion extends from the support portion in a direction intersecting with the longitudinal direction of the support portion, and drives to hold the light source at an end portion of the holding portion opposite to the support portion side. apparatus.   The drive device according to claim 1, wherein the holding unit includes a rotation mechanism unit that changes an irradiation direction of light from the light source with respect to the support unit. The holding unit includes a plurality of the rotation mechanism units,
The drive device according to claim 2, wherein rotation axes of the plurality of rotation mechanism units are arranged coaxially with each other and parallel to a longitudinal direction of the support unit.   The drive device according to claim 2, wherein the holding unit includes a plurality of the rotation mechanism units arranged at different positions in the extending direction of the holding unit.   The drive device according to claim 1, wherein the light source is a surface light source including an organic EL element. The light source is a surface light source;
The driving device according to claim 1, wherein the holding unit extends in a direction intersecting with a light emitting surface of the surface light source. The light source is a surface light source;
The rotation direction of the light source by the rotation mechanism unit includes one direction and the opposite direction based on a state in which an irradiation direction of light from the light source coincides with an extending direction of the holding unit. The drive device according to any one of 4. The light source is a surface light source;
A first drive device;
A second drive device;
A connecting portion that connects the first light source held by the holding portion of the first driving device and the second light source held by the holding portion of the second driving device;
The drive apparatus as described in any one of Claims 2-4 provided with these.   The driving device according to claim 1, wherein the holding unit holds the light source in a detachable manner. The lighting fixture mounting apparatus includes a reflector that reflects light from the straight tube lighting fixture,
The reflecting plate includes a pair of plate-like portions arranged so that a distance between the reflecting plates is increased in the irradiation direction of the light from the straight tube lighting fixture,
The length of the holding portion is set to a length that does not cause interference between the light source and the pair of plate-like portions in a state where the light source is held by the holding portion. The drive device according to item. A light source;
A support portion that is long in one direction;
A holding part connected to the support part and holding the light source;
A drive circuit for driving the light source;
A pair of fixed parts respectively formed at both ends in the longitudinal direction of the support part;
With
Each of the pair of fixed parts is formed in a shape that can be attached to a base socket of a lighting fixture mounting apparatus to which a straight tube type lighting fixture is attached,
At least one of the pair of fixed parts is a power receiving terminal that receives power supplied from the base socket through the drive circuit to the light source,
The holding portion extends from the support portion in a direction intersecting the longitudinal direction of the support portion, and emits light that holds the light source at an end of the holding portion opposite to the support portion side. apparatus.

Images