JP2009110695A - Illumination system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination system with little sense of discomfort felt at short circuiting of a light-emitting module. <P>SOLUTION: The illumination system 100 is structured by arranging planar light-emitting modules 2 in a plurality of zoned regions R arrayed in a matrix shape. The zoned regions R comprise installation regions R1 with planar light-emitting modules 2 installed, and empty regions R2 without any planar light-emitting modules 2 installed, the latter R2 to be interspersed among groups of the installation regions R1. Further, any zoned region R adjacent to an empty region R2 is to be an installation region R1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an illumination system including a plurality of light emitting modules.

Conventionally, an illumination system in which light emitting modules are arranged in a matrix is known. For example, Patent Document 1 discloses a surface illumination device including a common substrate and a large number of organic light emitting diodes (light emitting modules) arranged on the common substrate at predetermined intervals and electrically connected in series to each other. Yes.
JP 2004-134385 A

  In the illumination device as described above, when the light emitting module is short-circuited, only the short-circuited portion is turned off in the light emitting surface, and the defective portion of illumination (non-illuminated portion) newly formed on the light emitting surface is good. Become prominent. Thereby, it is easy for the person who saw the illumination system to feel uncomfortable due to the short circuit of the light emitting module.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an illumination system that has a little uncomfortable feeling due to a short circuit of a light emitting module.

  The invention of claim 1 is an illumination system in which light emitting modules are installed in a plurality of partitioned areas arranged in a matrix, wherein the partitioned areas are provided with an installed area in which the light emitting modules are installed and a light emitting module. There are no empty areas, and the empty areas are scattered in the group of the installation areas.

  According to a second aspect of the present invention, in the illumination system according to the first aspect, a lighting circuit for lighting a light emitting module is provided in the empty area.

  According to a third aspect of the present invention, in the illumination system according to the first or second aspect, a partition area adjacent to the empty area is the installation area.

  According to the first aspect of the present invention, since the empty area where the light emitting module is not installed is intentionally set in advance, there is a defective portion (non-illuminated portion) of illumination on the light emitting surface of the illumination system from the beginning. Furthermore, since the empty areas are scattered in the group of the installation areas, the non-illuminated portions are arranged in a well-balanced manner on the light emitting surface. Thereby, even if the light emitting module is short-circuited, the non-illuminated part newly formed on the light-emitting surface due to the short circuit is not noticeable, and the uncomfortable feeling that a person who has seen the illumination system learns by short-circuiting the light emitting module is sufficiently reduced.

  In addition, the above “arranged in a matrix” includes not only the case where they are arranged vertically and horizontally, but also the case where they are arranged so as to cross diagonally.

  According to the invention of claim 2, by providing the lighting circuit for lighting the light emitting module in the empty area that is a dead space, the lighting circuit of the lighting system is compared with the case where the lighting circuit is provided outside the partition area, for example. Occupied area can be reduced.

  According to the third aspect of the present invention, it is possible to prevent the vacant areas from being adjacent to each other. Therefore, it is possible to prevent the non-illuminated part from being noticeable due to the continuous non-illuminated part. Thereby, it can prevent that the person who looked at the lighting system felt a big uncomfortable feeling. Further, in the case where the lighting circuit is provided in the empty area, it is possible to prevent the occurrence of noise due to the proximity of the circuits.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing an overall configuration of a lighting system according to an embodiment of the present invention, in which (a) is a plan view in a state where all planar light emitting modules are lit, and (b) is several It is a top view of the state in which the planar light emitting module is short-circuited. FIG. 2 is an enlarged plan view showing the planar light-emitting luminaire of the illumination system shown in FIG. FIG. 3 is a perspective view showing the configuration of the planar light emitting module. First, with reference to Fig.1 (a) and FIG. 2, the whole structure of the illumination system 100 of this embodiment is demonstrated.

  The illumination system 100 of this embodiment is installed, for example, on the ceiling of a hotel lobby and illuminates the opposite floor surface. As shown in FIG. 1A, the illumination system 100 includes nine planar light-emitting illuminators A to I arranged in parallel in the vertical and horizontal directions, and an unillustrated control device that controls them. . In the illumination system 100 shown in FIG. 1, the surface side of the paper in FIG. 1 is the light emitting surface of the illumination system 100.

  Since the basic configurations of the respective planar light-emitting luminaires A to I are substantially the same, the configuration of the planar light-emitting luminaire A will be described below with reference to FIG.

  As shown in FIG. 2, the planar light-emitting luminaire A has a single mounting substrate 1. The mounting substrate 1 is provided with a plurality (132) of partitioned areas R arranged in a matrix of 11 rows × 12 columns, and the planar light emitting module 2 is installed in these partitioned areas R. It has become so.

  In the present embodiment, the partition region R is a virtual region that has been divided, but is surrounded by four sides by, for example, a recess formed in the mounting substrate 1 or a partition plate installed on the upper surface of the mounting substrate 1. It may be a storage part.

  Here, with reference to FIG. 3, the structure of the said planar light emitting module 2 is demonstrated.

  As shown in FIG. 3, the planar light emitting module 2 includes a substrate 21, an anode electrode 22, an organic light emitting layer 23, a cathode electrode 24, a sealing layer 25, and a connection conductor 26. .

  The substrate 21 is made of an insulating material having translucency such as a glass material. The substrate 21 is provided with a terminal that is formed as a conductive pattern continuous with a conductive pattern of a cathode electrode 24 to be described later, and that is connected to a DC power source via an electric wire.

  The anode electrode 22 is made of a light-transmitting conductive material such as indium tin oxide (ITO), and is provided on the substrate 21. The anode electrode 22 also has a function as a terminal that is electrically connected to a DC power source via an electric wire.

  The organic light emitting layer 23 is an organic thin film provided on the anode electrode 22 and emits light when energized in the thickness direction.

  The cathode electrode 24 is made of, for example, a metal conductive pattern, and is provided so as to sandwich the organic light emitting layer 23 in the thickness direction with the anode electrode 22.

  The sealing layer 25 is made of, for example, silicon resin, and is formed in a shape that covers the upper and side surfaces of the cathode electrode 24 and the side surface of the organic light emitting layer 23.

  The connection conductor 26 is formed by, for example, chrome plating, and the wide width portion 26 a and the narrow width portion 26 b of the connection conductor 26 are exposed to the outside without being covered with the sealing layer 25. .

  And in the illumination system 100 of this embodiment, the division area | region R which does not install the planar light emitting module 2 is intentionally set beforehand.

  That is, as shown in FIG. 1 and FIG. 2, the partition area R in which the planar light emitting module 2 is installed is set as an installation area R1, and the partition area R in which the planar light emitting module 2 is not installed is set as an empty area R2. Sometimes, the planar light emitting modules 2 are arranged so that the empty areas R2 are scattered in the group of the installation areas R1.

  Specifically, in the planar light-emitting luminaire A shown in FIG. 2, the 7th column in the 2nd row, the 2nd column in the 4th row, the 9th column in the 5th row, the 5th column in the 6th row, Six partition regions R in the 10th column of the 8th row and the 4th column of the 10th row are empty regions R2, and the planar light emitting module 2 is not installed. And the partition area | region R other than said six becomes installation area | region R1 in which the planar light emitting module 2 was installed.

  Further, as shown in FIG. 2, the surrounding partition area R adjacent to the empty area R2 is an installation area R1, and the empty areas R2 are not adjacent to each other.

  In each of the other planar light-emitting luminaires B to I, a plurality (six in this embodiment) of partition regions R are vacant regions R2, and the partition regions R adjacent to the vacant regions R2 are also provided. Is the installation area R1.

  A lighting circuit 3 for lighting the planar light emitting module 2 is installed in the empty area R2. In the present embodiment, eight lighting circuits 3 for lighting the planar light emitting modules 2 installed in each of the eight adjacent installation regions R1 so as to surround the empty region R2 are provided in the empty region R2. Yes. The number of lighting circuits 3 provided in the empty area R2 is not limited to this.

  Although not shown, the lighting circuit 3 rectifies commercial power and supplies it to the planar light emitting module 2. A diode bridge that rectifies full-wave rectification of the AC output of the commercial power, and an output terminal of the diode bridge A switching element composed of, for example, an FET connected between, a series circuit of an inductor and a capacitor, a diode connected between both ends of the series circuit of the inductor and the capacitor, and a voltage across the capacitor, that is, an output voltage of a DC power source, It comprises a so-called buck converter provided with a drive / control circuit which is controlled by controlling on / off.

  Then, unlike the installation area R1, light is not irradiated from the empty area R2, so that persons around the illumination system 100 can use the empty area R2 as a defective part of the illumination formed on the light emitting surface ( It is visually recognized as a non-illuminated part. In addition, a faint dark portion is formed on the floor surface facing the illumination system 100 so as to substantially correspond to the empty area R2.

  By the way, in the illumination system 100, the planar light emitting module 2 may be short-circuited. In this case, the installation region R1 of the short-circuited planar light-emitting module 2 is turned off, and a new defective portion (non-illuminated portion) of illumination is formed on the light-emitting surface of the illumination system 100. Moreover, a new dark part will also be formed in the corresponding part of the floor surface to be illuminated.

  Next, with reference to FIG. 1 (a), (b), the magnitude | size of the discomfort memorize | stored in the short circuit state of the planar light emitting module 2 in the illumination system 100 of this embodiment is demonstrated.

  First, the magnitude of the uncomfortable feeling to be remembered in the short-circuit state of the planar light emitting module in the illumination system 200 of the comparative example shown in FIG. In the illumination system 200 according to this comparative example, all the partitioned areas R in the nine planar light-emitting luminaires A ′ to I ′ are the installation areas R1 in which the planar light-emitting modules are installed, and this embodiment The empty area R2 is not set. Moreover, in FIG.1 (b) and FIG.4 (b), the division area | region R which the planar light emitting module short-circuited is shown with the code | symbol R3 as a short circuit area, and the number of short circuit area | region R3 in the illumination system 200 of FIG. The arrangement position is the same as that in FIG.

  Comparing the state before the short circuit of the lighting system 200 shown in FIG. 4A with the short circuit state shown in FIG. 4B, the newly formed short circuit region R3 is conspicuous, and the shorted state lighting system 200 I feel a great sense of discomfort. Therefore, it can be seen that when the lighting system 200 of the comparative example is installed on the ceiling of a hotel lobby, a person looking up at the lighting system 200 will feel uncomfortable due to the short circuit of the planar light emitting module 2.

  Moreover, since the dark part corresponding to the short circuit area | region R3 newly formed in the floor surface is also conspicuous, the discomfort by the short circuit of the planar light emitting module 2 is also felt here.

  On the other hand, when the state before the short circuit of the illumination system 100 shown in FIG. 1A is compared with the short circuit state shown in FIG. . This is because the newly formed short-circuit region R3 becomes inconspicuous by scattering the vacant regions R2 intentionally set in advance in the group of the installation regions R1. Therefore, it turns out that those who looked up at the illumination system 100 of this embodiment installed on the ceiling of the hotel lobby are less likely to feel discomfort due to the short circuit of the planar light emitting module 2.

  Moreover, since the dark part corresponding to the short circuit area | region R3 newly formed in the floor surface is not conspicuous by the dark part corresponding to the empty area | region R2 of a floor surface, even in this, the discomfort due to the short circuit of the planar light emitting module 2 is felt. It has become difficult.

  In the present embodiment, as described above, the empty area R2 in which the planar light emitting module 2 is not installed is intentionally set in advance, so that an illumination defect portion (non-illumination) is originally formed on the light emitting surface of the illumination system 100. Part) exists. Further, since the empty areas R2 are scattered in the group of the installation areas R1, the non-illuminated portions are arranged in a well-balanced manner on the light emitting surface. Thereby, even if the planar light emitting module 2 is short-circuited, the non-illuminated portion (short-circuit region R3) newly formed on the light emitting surface due to the short circuit is not easily noticeable, and a person who has seen the illumination system 100 can see the planar light emitting module 2 The sense of incongruity memorized by the short circuit becomes sufficiently small.

  In the present embodiment, as described above, the lighting circuit 3 for lighting the planar light emitting module 2 is provided in the empty area R2 that is a dead space, so that the lighting circuit 3 is placed outside the partition area R, for example. Compared with the case where it provides, the occupation area of the said illumination system 100 can be made small.

  Further, in the present embodiment, as described above, the partition area R adjacent to the empty area R2 is set as the installation area R1, so that the empty areas R2 can be prevented from being adjacent to each other. Thereby, since the non-illuminated part can be prevented from being noticeable due to the continuous non-illuminated part, it is possible to prevent a person who has seen the illumination system 100 from feeling uncomfortable. In addition, when the lighting circuit 3 is provided in the empty area R2, it is possible to prevent the occurrence of noise due to the proximity of the circuits 3.

  In the above embodiment, an example in which the present invention is applied to a lighting system installed on the ceiling of a hotel lobby has been shown. However, the present invention is also applicable to a lighting system installed on a wall surface other than the ceiling. Moreover, it is applicable also to the illumination system installed in the outer wall surface of a building other than indoor, for example.

  In the above embodiment, the lighting circuit 3 is provided in the empty area R2, but a control device other than the lighting circuit 3 or a point light source such as a light emitting diode having a light supplementing function may be provided.

  In addition, the partition areas R in which the planar light emitting modules 2 are installed are set to be arranged vertically and horizontally. However, the present invention is not limited to this, and the installation areas R may be arranged to cross diagonally.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which showed the whole structure of the illumination system by one Embodiment of this invention, (a) is a top view in the state in which all the planar light emission modules are lighting, (b) is some planar light emission. It is a top view in the state where a module is short-circuited. It is the top view which expanded and showed the planar light emission type lighting fixture of the illumination system shown to Fig.1 (a). It is the perspective view which showed the structure of the planar light emitting module. It is the top view which showed the whole structure of the illumination system by a comparative example, (a) is a top view in the state where all the planar light emitting modules are lit, (b) is a short circuit of some planar light emitting modules. FIG.

Explanation of symbols

2. Planar light emitting module (light emitting module)
3 lighting circuit 100 lighting system R division area R1 installation area R2 empty area

Claims (3)

A lighting system in which light emitting modules are installed in a plurality of partitioned regions arranged in a matrix,
The partition area includes an installation area in which a light emitting module is installed and an empty area in which no light emitting module is installed,
The vacant area is scattered in the group of the installation areas.   The lighting system according to claim 1, wherein a lighting circuit for lighting the light emitting module is provided in the empty area.   The illumination system according to claim 1 or 2, wherein a partition area adjacent to the empty area is the installation area.

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