JP2016178095A - Lighting device and signboard using lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall-hanging signboard that can be formed more thin and provide a lighting device to be used in the wall-hanging signboard.SOLUTION: A flat-plate lighting device of this invention has an optical transparency plastic plate having a pair of thin plates and a plurality of partition walls arranged between the pair of thin plates and having a plurality of elongated clearances formed by the pair of thin plates and a plurality of partition walls, a plurality of EEFL pipes inserted into the elongated clearances of the plastic plate, a plurality of pairs of connectors arranged at electrodes at both ends of each of the plurality of EEFL pipes, electrodes connecting the plurality of connectors and an inverter connected to the electrodes. In addition, this invention provides a signboard including this flat plate lighting device, a rear surface plate and a frame member for holding the flat plate lighting device, and a plurality of pairs of connectors, electrodes and the inverter are arranged between the frame member and the rear surface plate.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a lighting device and a signboard using the same, and more particularly to a wall-mounted signboard and a certification device used therefor.

  Signboards are generally used in advertising, and there are various types such as standing signs and rooftop signs. Especially, wall-mounted signboards placed on busy walls such as stations are effective to attract people's interests. One of the signs.

  By the way, generally, in a wall-mounted signboard, a signboard member formed in a thin plate shape on which an advertisement or the like is described, a lighting device disposed on the back surface of the signboard member, a back plate and a frame member for housing the lighting device and the signboard member As an illuminating device, there is an example in which a plurality of fluorescent lamps are arranged on the back as an illuminating device.

  However, the fluorescent lamp is generally thick, and the thickness of the entire wall-mounted signboard must be increased to accommodate the fluorescent lamp. Furthermore, since the light of the fluorescent lamp is linear, a sufficient distance must be provided between the signboard member and the lighting device so that the linear light does not appear as stripes on the planar signboard member. There is a problem that it becomes thick.

  Then, this invention solves the said subject and aims at providing the wall-mounted signboard which can be formed more thinly, and the illuminating device used therewith.

  A flat illuminating device according to one aspect of the present invention that solves the above problems includes a pair of thin plates and a plurality of partition walls arranged between the pair of thin plates, and is formed by the pair of thin plates and the plurality of partition walls. A transparent plastic plate having a plurality of elongated gaps, a plurality of EEFL tubes inserted into the elongated gaps of the plastic plate, and a plurality of pairs arranged on electrodes at both ends of the plurality of EEFL tubes And an electrode connected to the plurality of connectors, and an inverter connected to the electrodes.

  In addition, a signboard according to another aspect of the present invention includes the flat plate illumination device, a back plate and a frame member that hold the flat plate illumination device, and a plurality of pairs of connectors and electrodes between the frame member and the back plate, The inverter is arranged.

  As described above, according to the present invention, it is possible to provide a wall-mounted signboard that can be formed thinner and a lighting device used therefor.

It is a schematic plan view of the signboard which concerns on embodiment. It is a schematic sectional drawing (AA cross section of FIG. 1) of the signboard which concerns on embodiment. It is a schematic plan view of the illuminating device which concerns on embodiment. It is a schematic sectional drawing of the illuminating device which concerns on embodiment. It is a schematic perspective view of the plastic plate which concerns on embodiment. It is an image figure at the time of arranging a plurality of EEFL pipes concerning an embodiment in a gap. It is a general | schematic expanded view of the connector and electrode which concern on embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present invention can be implemented in many different modes and is not limited to the embodiments shown below. Note that in this specification, portions having the same or similar functions are denoted by the same reference numerals, and repeated description thereof is omitted.

(Embodiment 1)
FIG. 1 is a schematic plan view of a signboard (hereinafter referred to as “book signboard”) 1 according to the present embodiment, and FIG. 2 is a schematic cross-sectional view of the signboard. 3 is a schematic plan view of an illumination device (hereinafter referred to as “the present illumination device”) 2 according to the present embodiment, and FIG. 4 is a schematic cross-sectional view of the illumination device 2. FIG. 5 is a schematic perspective view of the plastic plate 21. FIG. 6 is a schematic development view of the connector and the electrode according to the embodiment.

  As shown in these drawings, the signboard 1 includes a pair of thin plates 211 and a plurality of partition walls 212 disposed between the pair of thin plates 211, and is formed by the pair of thin plates 211 and the plurality of partition walls 212. A transparent plastic plate 21 having a plurality of elongated gaps 213, a plurality of EEFL tubes 22 inserted into the elongated gaps 213 of the plastic plate 21, and electrodes 24 at both ends of the plurality of EEFL tubes 22. Flat illumination having a plurality of pairs of connectors 23 arranged, electrodes 24 connecting the plurality of connectors 23, a connector insulation case 25 holding the connectors 23 and the electrodes 24, and an inverter 27 connected to the electrodes 24 A device 2 is included.

  The signboard 1 further includes a back plate 31 and a frame member 32 that hold the flat plate illumination device 2 in addition to the flat plate illumination device 2, and a plurality of pairs of connectors 23 and between the frame member 32 and the back plate 31. An electrode 24 and an inverter 27 are arranged. Further, the signboard 1 is provided with a signboard member 4 on which an advertisement is formed between the flat plate illumination device 2 and the frame member 32, and a light diffusion sheet 5 is interposed between the signboard member 4 and the flat plate illumination device 2. Has been placed.

  In the present embodiment, the plastic plate 21 is a light-transmitting member as described above, and includes a pair of thin plates 211 and a plurality of partition walls 212 disposed between the pair of thin plates 211. A plurality of elongated gaps 213 are formed.

  Further, in the present plastic plate 21, the length of the elongated gap 213 (the length of the plastic plate 21) is not particularly limited. However, the electrodes at both ends of the EEFL tube 22, which will be described in detail later, and more preferably, the electrodes at both ends appear. It is preferable that Specifically, it is preferable that the end portion protrudes from the end of the EEFL tube 22 in the range of 1 cm to 3 cm.

  In the present plastic plate 21, the width and height of the elongated gap 213 (the distance of the partition wall 211 of the plastic plate 21 and the distance of the thin plate 211 of the plastic plate 21) are not particularly limited, but will be described in detail later. The diameter is preferably slightly larger than the diameter of 22, for example, preferably in the range of 4 mm or more and 10 mm or less, more specifically, about 1 mm or more and 2 mm or less larger than the diameter of the inserted EEFL tube 22. Is preferable in that the EEFL tube can be stably held.

  Further, in the present plastic plate 21, it is preferable that linear cut-out grooves are formed on the surfaces of the pair of thin plates 21 in a region between the plurality of partition walls, and more preferably a pair of both surfaces are formed. This is what it is. If it does in this way, when it is desired to change the dimension of an illuminating device, there exists an effect that it becomes possible to cut off easily, for example by bending the plastic board 21 so that a force may be applied to the notch groove of this surface.

  Moreover, it is preferable that unevenness is formed on the back surfaces (back surfaces) of the pair of thin films 21 of the plastic plate 21. By providing the unevenness, the light emitted from the EEFL tube 22 can be scattered, so that more uniform light can be obtained. In addition, while giving an unevenness | corrugation to a back surface, smoothing the surface, for example, it becomes possible to arrange | position a light reflection film further on the surface, and there exists an effect that more uniform light can be achieved.

  The material of the plastic plate 21 is not limited as long as it has optical transparency. For example, polycarbonate, polypropylene, polyethylene, and the like can be used, but the material is not limited thereto. In addition, as a raw material of the plastic plate 21, it is preferable that it is a material which can hold | maintain a shape stably even when temperature rises, for example, it is more preferable that it is a polycarbonate. The light transmittance is preferably transparent so that light in the visible region that emits light is substantially transmitted, but a light scattering property is useful because it can improve the uniformity of light.

  In the present embodiment, an EEFL (External Electrode Fluorescent Lamp) tube 22 emits light and can illuminate the signboard member 4 from the back. Specifically, an elongated cylindrical member enclosing a fluorescent gas, The fluorescent material is formed on the inner side of the member, and the electrodes are formed on the outer side and formed on both ends of the cylindrical member. The EEFL tube has a feature that it can be formed very thin compared to a general fluorescent lamp, is lightweight, can be driven with low power, and has a long life.

  In the present embodiment, the EEFL pipe 22 is inserted and arranged in the gap 213 of the plastic plate 21. Thereby, the EEFL tube 22 having the problem of being thin and brittle can be stably protected and can be held at a uniform interval. The EEFL tube 22 may be inserted into all the gaps 213 of the plastic plate 21, but it is more preferable that the EEFL pipes 22 are arranged uniformly with a few gaps. In this way, the intensity of light from the EEFL tube 22 can be kept within a preferable range, and light uniformity can be ensured by utilizing light scattering by the partition wall 212.

  In the present embodiment, the pair of connectors 23 are members for electrically connecting to the electrodes 24 formed at the outer ends of the EEFL tube 22, and are preferably formed of a conductive metal.

  In the present embodiment, the electrode 24 is a member that connects the plurality of connectors 23, and it is preferable that the electrode 24 is also formed of a conductive metal. As shown in FIG. 5, the connection relationship between the connector 23 and the electrode 24 is configured to include a connector 23 arranged in parallel and a linear electrode 24 that commonly connects the connectors 23. It is preferable. By doing in this way, a plurality of EEFL pipes 22 can be connected in parallel. An example of a developed view of the connector 23 and the electrode 24 is shown in FIG.

  In the present embodiment, the pair of connectors 23 and electrodes 24 are not limited, but preferably have a connector insulation case 25 that holds the connector 23 and the electrodes 24 together. The connector insulation case 25 is not limited as long as it has the above functions, but for example, as shown in FIG. 6, it is U-shaped, and the connector 23 and the electrode 24 are arranged inside, and further inside. It is preferable that the fastening part 251 fixed to a plastic plate is formed. In this case, the plastic plate 21 may be provided with a groove or protrusion corresponding to the fastening portion 251 or a fastening portion 212 that is engaged with the fastening portion 251 of the connector insulating case 25. preferable. By doing so, the plastic plate 21 and the connector insulating case are integrated, and it is easy to carry and handle, and even when exposed to wind and rain, it is possible to prevent water and moisture from entering. . In this case, it is preferable that a partition wall 252 for partitioning the connector 23 is also arranged inside the connector insulating case. By doing in this way, it becomes possible to insulate between the some connectors 23, a discharge can be prevented, and also a flat illuminating device can be fixed stably. In addition, it is preferable that the connector insulation case has insulation, for example, polymers, such as a polycarbonate, can be used suitably.

  In this embodiment, it is preferable that a cutout groove 252 for cutting out is formed on the outside of the connector insulating case 25, and this cutout groove is formed substantially parallel to the direction in which the EEFL pipe 22 is inserted. It is preferable that By doing in this way, those who intend to construct this flat illumination device can freely determine the size of the device and fold and cut out the connector insulating case 25 using the notch groove according to the size. To be able to adjust.

  Further, an end cap 26 is preferably disposed on the side of the connector insulating case 25. By arranging the end cap 26, the inside of the flat illumination device can be sealed, and a short circuit caused by water, moisture, or the like entering from the side surface of the connector insulating case 25 can be prevented. In this case, the end cap 26 also has a U-shaped cross section and, like the connector insulating case 25, a fastening portion 261 for fixing to the connector insulating case 25 is preferably formed inside. In particular, when the cut-out length of the connector insulating case 25 is adjusted as described above, the inside of the flat illuminating device can be sealed by protecting the cut-out cross section with the end cap.

  In the present embodiment, the inverter 27 connected to the electrode 24 is a circuit that converts an AC voltage supplied from a power source into a DC voltage for driving the EEFL tube 22 to emit light. In this embodiment, although not particularly limited, it is preferable to further include a control circuit to save power.

  Moreover, in this embodiment, it is preferable that this signboard 1 has the back plate 31 and the frame member 32 which hold | maintain the flat illuminating device 2 in addition to the said flat illuminating device 2. FIG. In this way, not only can an impact from the outside be prevented, but it can also be easily hung and carried as a single signboard.

  In the present embodiment, the back plate 31 is a member for instructing the flat lighting device 2 and can be attached with an attachment or the like for attaching the signboard to a wall or the like. Although it does not necessarily limit in this limit, it is a preferable example that it is a plate-shaped member formed, for example with a metal, a plastics, etc.

  In the present embodiment, the frame member 32 is a member that is paired with the back plate 31 and can be arranged with the distance between the flat panel illumination device 2 and the signboard member 4 kept at a predetermined distance. The material of the frame member 32 is not limited, but is preferably formed of, for example, metal or plastic. The frame member 32 is preferably configured so that it can be detached from the back plate 31 and fixed. For example, the frame member 32 is preferably provided so as to be able to open and close by rotating via the back plate 31 and the shaft 311. In addition, it is preferable that the center part of the frame member 32 is transparent so that a passerby can visually recognize the sign member, and nothing may be provided in particular, but in order to protect the sign member 4 It is a preferable embodiment to arrange a transparent member such as polycarbonate.

  In the present embodiment, the connector 23, the electrode 24, and the inverter 27 are preferably disposed between the frame portion of the frame member 32 and the back plate 31. By doing in this way, the part which does not light-emit, and an opaque member can be stored in an originally opaque frame, and the thickness of a signboard can be prevented from becoming unnecessarily thick. In particular, there are many so-called dead spaces between the frame member 32 and the back plate 31. By utilizing this portion, it becomes possible to save more space and reduce the thickness of the film. For example, the thickness from the back plate to the signboard member surface is about 3 cm. It is also possible to suppress it. Compared to the need for a thickness of 15 cm or more if a sign using a general fluorescent lamp,

  In the present embodiment, the billboard member 4 is formed with an advertisement in order to provide information to a passerby. Although the signboard member 4 may be formed of an opaque member, it is preferable that the signboard member 4 has a light transmittance that can transmit light of the flat panel illumination device 2 disposed on the back surface.

  In the present embodiment, the signboard member 4 preferably receives light in a state where the light of the flat plate illumination device 2 is uniform to some extent, and the signboard member 4 and the flat plate illumination device 2 are positioned with a predetermined distance. Preferably it is. Although not limited, for example, it is preferable to keep the distance within a range of 1 cm or more and 4 cm or less, more preferably 3 cm or less. Within this range, the uniformity of light can be sufficiently ensured and the signboard can be made thin.

  Moreover, in this embodiment, the light-scattering sheet 5 is arrange | positioned between the signboard member 4 and the flat illumination apparatus 2, and when not arrange | positioning is also possible, By arrange | positioning the light-scattering sheet 5, The uniformity of light can be further secured, and when this sheet is inserted, the distance between the signboard member 4 and the flat illumination device 2 can be further shortened, and the thickness can be further reduced.

  Furthermore, when the advertisement is arranged only on one side of the signboard, the light reflection sheet 6 is arranged on the back side of the thin plate 211 as shown in FIG. can do.

  As described above, according to this embodiment, it is possible to provide a wall-mounted signboard that can be formed thinner and a lighting device used therefor.

  Here, the effect of the signboard and the flat illumination device according to the above embodiment was actually produced, and the effect was confirmed. It is shown below.

Example 1
First, a rectangular polycarbonate plastic plate having a size of 11.5 cm × 60 cm and a cross section of 6 mm × 6 mm was produced.

  Next, nine EEFL tubes (manufactured by A. TEC) having a diameter of 5 mm and a length of 120 cm were prepared and inserted into the gap of the plastic plate with a gap of nine gaps.

  Furthermore, insulating cases attached with 8 mm × 25 mm strip-shaped connectors were arranged at both ends of the plastic plate, bent at the center electrode side, and meshed with and fixed to the plastic plate. In this example, a 0.08 mm light diffusion sheet (manufactured by Sumitomo 3M Limited) was used on the surface side of the plastic plate. A 1.0 mm light reflecting sheet (MCPET; manufactured by Furukawa Electric Co., Ltd.) was used on the back side of the plastic plate.

  Next, a frame member having the same size was placed on a back plate having a length of about 125 cm and a width of 65 cm, and various members such as a signboard member and a flat lighting device were housed and fixed to produce the signboard shown in FIG. The thickness of this signboard is 35 mm, which is only about 20% thick compared to the typical thickness of 150-180 mm for signboards using ordinary fluorescent lamps. did. Moreover, in the present Example, it also confirmed that very uniform light could be provided.

  As described above, the effect of the present invention could be confirmed by this example.

  INDUSTRIAL APPLICABILITY The present invention has industrial applicability as a signboard and a flat lighting device used therefor.

DESCRIPTION OF SYMBOLS 1 ... Signboard, 2 ... Plastic board, 31 ... Back board, 32 ... Frame member, 4 ... Signboard member, 5 ... Light diffusion sheet, 6 ... Light reflection sheet

Claims (4)

A light-transmitting plastic plate having a pair of thin plates and a plurality of partition walls arranged between the pair of thin plates, and having a plurality of elongated gaps formed by the pair of thin plates and the plurality of partition walls; ,
A plurality of EEFL tubes inserted into the elongated gaps of the plastic plate;
A plurality of pairs of connectors disposed on electrodes at both ends of each of the plurality of EEFL tubes;
An electrode for connecting a plurality of connectors;
A flat panel illumination device having an inverter connected to the electrode. A connector insulation case for holding the connector and the electrode together;
The connector insulation case is U-shaped, and a fastening portion is formed to be fixed to the plastic plate.
The flat illumination device according to claim 1, wherein the plastic plate is provided with a fastening portion that meshes with a fastening portion of the connector insulating case. The flat plate illumination device, a back plate and a frame member for holding the flat plate illumination device,
The signboard according to claim 1, wherein the plurality of pairs of connectors, the electrodes, and the inverter are arranged between the frame member and the back plate. The signboard of Claim 1 which has a light-diffusion sheet in the said frame member side surface of the said flat illuminating device.