JP2012049051A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system capable of easily attaching and detaching from the system a light source and a light guide plate being a light emitting member and making cleaning and exchange, by a simple mechanism without using a tool or the like at all.SOLUTION: The lighting system comprises a light source which emits light by electric power supplied from the outside, a light guide plate which is arranged adjacent to the light source and has one or more main faces installed to lead out light of the light source incident from the side face, a holding member which is arranged covering the light source and the outer circumference of the light guide plate and comprises a first frame and a second frame mutually engaged, and a housing member which detachably houses the holding member and is attached to a case.

Description

  The present invention relates to an illumination device that is installed adjacent to a doorway of a building, for example, and includes a light guide plate.

  2. Description of the Related Art Conventionally, with respect to an illuminated joinery, the illuminated joinery includes at least one glass plate installed in an opening of a building via a frame member and an illumination device having at least one LED light source, and the LED light source is There exists the structure of the lighting fixture which is installed in the said frame member and the heat which generate | occur | produced with this LED light source is stored in the said frame member, and is thermally radiated (for example, refer patent document 1).

  In addition, regarding the lighting device of the vending machine, the light emitting unit that irradiates light from the device main body toward the back plate of the product sample chamber, and the light emitting unit that is disposed between the light emitting unit and the back plate transmits the light. There exists a structure of the illuminating device provided with the translucent member which projects a predetermined display object on a backplate (for example, refer patent document 2).

JP 2007-217873 A JP 2009-163629 A

  However, in the configuration as described above, when the light-emitting member is contaminated or damaged, the light-emitting member has to be detached from the apparatus using a dedicated tool, which is troublesome.

  Therefore, in view of the above technical problems, the present invention can easily remove and remove the light source and the light guide plate, which are light emitting members, from the apparatus by a simple mechanism without using any tools or the like. An object of the present invention is to provide a lighting device that can be used.

  In order to solve the above-described problems, an illumination device according to the present invention is configured to derive a light source that emits light by power supplied from the outside and a light source that is disposed adjacent to the light source and is incident from a side surface. A light guide plate having at least one main surface; a holding member comprising a first frame and a second frame which are disposed to cover the outer periphery of the light source and the light guide plate and engage with each other; and And a housing member that is detachably housed and attached to the housing.

  According to the illuminating device of the present invention, it is possible to easily attach and detach the light source and the light guide plate, which are light emitting members, from the device and clean and replace them with a simple mechanism without using any tools or the like.

It is a front view which shows the state which installed the illuminating device which concerns on the 1st Embodiment of this invention adjacent to the entrance of a building, for example. It is sectional drawing which shows the state which installed the illuminating device which concerns on the 1st Embodiment of this invention in the housing | casing adjacent to the entrance / exit of a building, for example from the upper surface, (a) is a housing | casing member of an illuminating device inside a housing | casing. Sectional drawing which shows the state inserted completely, (b) shows the state in the middle of taking out a light-guide plate and a holding member from a storage member, after rotating the storage member of an illuminating device and pulling it out from the inside of a housing | casing. It is sectional drawing. It is a front view which shows the light-guide plate and holding member which comprise the illuminating device which concerns on the 1st Embodiment of this invention. It is a front view which shows the principal part of the light-guide plate and holding member which comprise the illuminating device which concerns on the 1st Embodiment of this invention, (a) passes the power connector through the electric power supplied to the upper end of a light-guide plate and a light source. The front view which shows the principal part of the holding member which was made, (b) is a front view which shows the lower end of a light-guide plate and the principal part of a holding member. It is a perspective view which shows the principal part of the holding member which comprises the illuminating device which concerns on the 1st Embodiment of this invention, (a) provided the concave notch connected with the convex protrusion which comprises a holding member. FIG. 4B is a perspective view showing the main part of the second frame, and FIG. 5B is a perspective view showing the main part of the first frame provided with convex protrusions constituting the holding member. It is sectional drawing which shows the state which inserted and installed the illuminating device which concerns on the 2nd Embodiment of this invention in the inside of the housing | casing adjacent to the doorway of a building, for example. The lighting device according to the third embodiment of the present invention is rotated from the housing member of the lighting device by rotating the housing member of the lighting device, for example, and pulled out from the inside of the housing adjacent to the entrance of the building, and the light guide plate and the holding member are integrated from the housing member. It is sectional drawing which shows the state in the middle of taking out from an upper surface. It is a schematic diagram which shows the light-guide plate which comprises the illuminating device which concerns on the 3rd Embodiment of this invention, (a) is a schematic diagram which shows one main surface of a light-guide plate, (b) is a schematic diagram which shows the side surface of a light-guide plate. FIG. 4C is a schematic diagram showing another main surface provided to face one main surface of the light guide plate. It is a schematic diagram which shows a part of light-guide plate in which the pattern which consists of a quadrangular pyramid which comprises the illuminating device which concerns on the 3rd Embodiment of this invention was formed in matrix form. It is a schematic diagram which shows the pattern of the quadrangular pyramid formed in the light-guide plate which comprises the illuminating device which concerns on the 3rd Embodiment of this invention, (a) is a schematic diagram which shows this pattern from one main surface of a light-guide plate, (B) is a schematic diagram which shows this pattern from the side surface of a light-guide plate. It is a schematic diagram which shows the light guide plate which comprises the illuminating device which concerns on the 3rd Embodiment of this invention, and the light source provided in the side surface of this light guide plate in a cross section, respectively, (a) is a concave pattern of equal depth Is a schematic diagram showing a light guide plate formed on one side of the main surface and a light source provided on one side of the side surface of the light guide plate, (b) is a plurality of concave patterns of equal depth formed on both sides of the main surface The schematic diagram which shows the light source provided in the one side of the light guide plate and the side surface of this light guide plate, (c) is a light guide plate in which a plurality of concave patterns of different depths are formed on both sides of the main surface, and the light guide plate The schematic diagram which shows the light source provided in the one side of a side surface, (d) is the light source plate in which the concave pattern of different depth was formed in multiple numbers on both sides of the main surface, and the light source provided in the both sides of the side surface of this light guide plate It is a schematic diagram shown.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments according to a lighting device of the invention will be described with reference to the drawings. In addition, the illuminating device of this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.

  Moreover, in the following description, the illuminating device 1 of the 1st Embodiment of this invention is demonstrated first, referring FIG. 1 thru | or FIG. Next, the illuminating device 2 of the 2nd Embodiment of this invention is demonstrated, referring FIG. Next, a lighting device 3 according to a third embodiment of the present invention will be described with reference to FIGS. Next, the manufacturing method of the light-guide plate each arrange | positioned at the illuminating device 3 of the 3rd Embodiment of this invention is demonstrated. Finally, the configuration and main functions and effects of the lighting devices of the first to third embodiments according to the present invention will be described for each claim.

[First Embodiment]
Hereinafter, the illumination device 1 according to the first embodiment of the present invention will be specifically described with reference to FIGS. 1 to 5.

  As illustrated in FIG. 2, the lighting device 1 according to the first embodiment includes a light source 10, a light guide plate 20, a holding member 50, and a storage member 60. Such an illuminating device 1 is installed adjacent to the entrance E of the building A, for example, as shown in FIG. Hereinafter, each structure of the illuminating device 1 is demonstrated in order.

  For example, as illustrated in FIG. 2, the light source 10 included in the lighting device 1 of the first embodiment emits light by using electric power supplied from the outside. Such a light source 10 includes, for example, a light emitting diode (LED) that emits white light. Note that the light source 10 is not limited to a white LED, for example, an LED formed of any one of white, red, orange, yellow, green, blue, indigo, or purple, or a combination of these colors. You may comprise. Moreover, you may comprise the light source 10 by LED which emits the light of an ultraviolet region, for example. Similarly, the light source 10 may be composed of, for example, an organic light emitting diode, a fluorescent tube, a cold cathode tube, or a neon tube. Moreover, you may provide the board | substrate for mounting the light source 10 by a predetermined arrangement | sequence. As the substrate, for example, a light metal plate having a certain strength, a metal plate using copper excellent in heat dissipation, or a glass epoxy substrate excellent in workability is used. The light source 10 emits light with a predetermined amount of light by power supplied from outside such as an outlet or a generator via the power connector 11 shown in FIG. 3 or FIG.

  Further, with respect to the light source 10, an illuminance sensor (not shown) is connected to the light source 10, and the light source 10 is turned on only when the illuminance around the lighting device 1 is less than a certain value based on the illuminance measured by the illuminance sensor. It is good also as a structure to make it light. Moreover, it is good also as a structure which varies the electric power applied to the light source 10 based on the illumination intensity measured with the illumination intensity sensor so that the illumination intensity around the illuminating device 1 may become a constant value. Similarly, for example, the light source 10 may be turned on only during a time period set in advance according to the season. In addition, when the light source 10 is disposed on both sides of the side surface of the light guide plate 20 described later and only one of the light sources 10 is turned on and used, and the light source 10 is turned off due to a failure or the like, a new light source 10 is obtained. In the meantime, the other light source 10 may be turned on.

  For example, as shown in FIG. 3, the light guide plate 20 constituting the illumination device 1 of the first embodiment is disposed adjacent to the light source 10, and has a main surface that guides light of the light source 10 incident from the side surface. One or more sides are provided. Further, for example, the light source 10 is disposed adjacent to one side or both sides of the side surface of the light guide plate 20. The material of the light guide plate 20 is made of, for example, an acrylic resin that is transparent or colored in a predetermined color. Further, as the material of the light guide plate 20, for example, a resin to which a fine particle-shaped diffusion member that emits diffused light when irradiated with visible light may be used. Similarly, for the material of the light guide plate 20, for example, a resin coated or added with a fluorescent agent that emits fluorescence when irradiated with light in the ultraviolet region or visible region may be used. The light guide plate 20 has a rectangular shape as shown in FIG. A plurality of light guide plates 20 may be provided adjacent to each other in accordance with the shape of the lighting device 1. Further, the light guide plate 20 is applied with a silicone coating agent or glass coating agent (not shown) having functions such as waterproof, antifouling, and dustproof, or is shown with functions such as waterproof, antifouling, and dustproof. A transparent resin may be coated.

  For example, as shown in FIGS. 3 to 5, the holding member 50 constituting the lighting device 1 of the first embodiment is disposed so as to cover the outer periphery of the light source 10 and the light guide plate 20, and is engaged with each other. Frame 30 and a second frame 40. Further, as shown in FIG. 5B, the first frame 30 is made of, for example, aluminum provided with an oxide film that is light and has a certain strength, and is formed in a rod shape with a U-shaped cross section. Here, for example, convex protrusions 31 are formed at both ends of the first frame 30. Further, as shown in FIG. 5A, the second frame 40 is made of, for example, aluminum provided with an oxide film having a light and constant strength, like the first frame 30, and has a U-shaped cross section. It is formed from a rod shape. Here, for example, concave notches 41 are formed on the side surfaces of both ends of the second frame 40. As shown in FIGS. 3 and 4, the protrusion 31 of the first frame 30 is connected to the notch 41 of the second frame 40. In addition, it is good also as a structure which makes the 1st flame | frame 30 and the 2nd frame 40 engage after forming a concave notch in the 1st flame | frame 30 and forming the convex protrusion in the 2nd flame | frame 40. . With the above configuration, as shown in FIG. 2, the holding member 50 allows the inner wall 32 of the first frame 30 and the inner wall 42 of the second frame 40 to be connected to the light source 10 in a state where the light source 10 and the light guide plate 20 are integrated. In addition, the outer periphery of the light source 10 and the light guide plate 20 can be covered with the outer periphery of the light source 10 and the light guide plate 20. In FIG. 2, the light source 10 is housed on the inner wall 32 of the first frame 30.

  Further, since the holding member 50 is configured to hold the inner wall 32 of the first frame 30 and the inner wall 42 of the second frame 40 in contact with the outer periphery of the light source 10 and the light guide plate 20, for example, the light source 10. When the light guide plate 20 is contaminated or damaged, the light source 10 and the light guide plate 20 can be easily cleaned or replaced without using any tools. Further, the holding member 50 may be formed with a hole for passing an electric wire for supplying power to the light source 10 in one or both of the first frame 30 and the second frame 40.

  For example, as shown in FIG. 2, the storage member 60 constituting the lighting device 1 of the first embodiment stores the holding member 50 in a detachable manner and is attached to the housing M. Such a storage member 60 is made of, for example, stainless steel, and is formed in a box shape having a storage portion 61 for storing the light guide plate 20 and the holding member 50 therein. In addition, a wiring hole 62 made of, for example, a long hole through which an electric wire that supplies electric power to the light source 10 is passed is opened in the storage unit 61. A wiring hole M5 corresponding to the wiring hole 62 is provided in the other end M2 of the housing M. Further, at one end of the storage member 60, a rotating portion 63 that is rotatably engaged with the other end portion M2 of the housing M and is formed of a hinge or the like is disposed. For example, a key 64 is disposed at one end M1 of the housing M. Here, when the key 64 is opened, a fixing mechanism (not shown) provided between the storage member 60 and the one end M1 is released, and the storage member 60 is moved to the other end M2. 63 can be rotated around the center.

  Further, for example, a tempered glass 65 for protecting the light guide plate 20 may be provided in parallel with the light guide plate 20 as shown in FIG. The tempered glass 65 may be provided with a display film 66 on which predetermined information (not shown) is printed. Further, the tempered glass 65 is detachably fixed to the storage member 60 by a pressing edge 67 made of, for example, a countersunk screw. Here, in FIG. 2, the state which installed the illuminating device 1 in the housing | casing M adjacent to the entrance / exit E of the building A is shown from the upper surface in the cross section, for example. Specifically, FIG. 2A shows a state in which the housing member 60 of the lighting device 1 is completely inserted into the housing M from above. 2B, the housing member 60 of the lighting device 1 is rotated around the rotating portion 63 and pulled out from the inside of the housing M, and then the light guide plate 20 and the holding member are removed from the housing member 60. The state in the middle of taking out 50 is shown from the upper surface. For example, the casing M may be provided with the tempered glass M3 fixed by the pressing edges M4.

  As mentioned above, according to the illuminating device 1 which concerns on 1st Embodiment, the circumference | surroundings of the entrance / exit E of the building A shown, for example in FIG. 1 can be illuminated using the light guide | induced from the light-guide plate 20 of this illuminating device 1. FIG. it can. Here, as shown in FIG. 4A, the protrusion 31 of the first frame 30 and the notch 41 of the second frame 40 are connected to cover the outer periphery of the light guide plate 20, and FIG. As shown in b), the storage member 60 of the lighting device 1 is rotated around the rotation portion 63 and pulled out from the inside of the housing M, and the holding member in which the light source 10 and the light guide plate 20 are held from the storage member 60. 50 can be taken out integrally. Therefore, for example, when the light guide plate 20 is contaminated or damaged, the light source 10 and the light guide plate 20 can be easily cleaned or replaced without using any tools.

[Second Embodiment]
Hereinafter, the illuminating device 2 of the 2nd Embodiment of this invention is demonstrated concretely, referring FIG.

  Note that the illumination device 2 according to the second embodiment of the present invention is characterized in that the storage member 70 of the illumination device 2 is detached without being rotated and pulled out from the inside of the housing N. Other configurations according to the second embodiment are the same as those described in the first embodiment as shown in FIG. Therefore, in the second embodiment, the storage member 70 different from the first embodiment will be mainly described.

  As shown in FIG. 6, the storage member 70 that configures the lighting device 2 of the second embodiment detachably stores a holding member 50 that holds the light source unit 10 and the light guide plate 20, and is attached to the housing N. . Such a storage member 70 is made of, for example, stainless steel, and is formed in a box shape having a storage portion 71 for storing the holding member 50 therein. In addition, a wiring hole 72 made of, for example, a long hole through which an electric wire for supplying electric power to the light source 10 is passed is opened in the storage portion 71. Further, for example, a tempered glass 75 that protects the light guide plate 20 may be provided in parallel with the light guide plate 20. The tempered glass 75 may be provided with a display film 76 on which predetermined information (not shown) is printed. Further, the tempered glass 75 is detachably fixed to the storage member 70 by a pressing edge 77 made of, for example, a countersunk screw. Here, in FIG. 6, for example, a state where the lighting device 2 is inserted and installed in the inside of the housing N adjacent to the entrance E of the building A is shown from the top surface.

  As mentioned above, according to the illuminating device 2 which concerns on 2nd Embodiment, the effect similar to the illuminating device 1 which concerns on 1st Embodiment mentioned above can be acquired. Furthermore, according to the illuminating device 2 which concerns on 2nd Embodiment, it is the structure where the storage member 70 of the illuminating device 2 is attached or detached without rotating, and it pulls out from the inside of the housing | casing N, A movable part is in the illuminating device 2. Therefore, the storage member 70 can be manufactured at a low cost, and when the storage member 70 is pulled out from the inside of the housing N or inserted into the housing N, a failure or the like can be made difficult to occur.

[Third Embodiment]
Hereinafter, the lighting device 3 according to the third embodiment of the present invention will be described in detail with reference to FIGS. 7 to 11.

  In addition, the illuminating device 3 of the 3rd Embodiment of this invention has the characteristics in which the concave or convex pattern is formed in the main surface of the light-guide plate 80 thru | or the light-guide plate 120. FIG. In addition, the configuration according to the third embodiment is the same as the configuration described in the first embodiment as shown in FIG. Therefore, in the third embodiment, the light guide plate 80 to the light guide plate 120 different from the first embodiment will be mainly described.

  For example, as shown in FIGS. 8 and 11A, the light guide plate constituting the illumination device 3 of the third embodiment has a concave shape that guides irradiated light as diffused light to the main surface of the light guide plate 80. A pattern 84 is formed. Specifically, FIG. 8 shows a light guide plate 80 in which, for example, a concave pattern 84 is formed on one main surface 81 of the light guide plate 80, and FIG. 8A shows one main surface 81 of the light guide plate 80. FIG. 8B shows a side surface 83 of the light guide plate 80, and FIG. 8C shows another main surface 82 provided to face one main surface 81 of the light guide plate 80. The patterns 84 are formed in a matrix on the main surface 81 of the light guide plate 80 at intervals of, for example, 1 mm to 6 mm. Here, if the density of the pattern 84 formed on the one principal surface 81 of the light guide plate 80 is sufficiently high, most of the plurality of diffused lights generated by the plurality of patterns 84 are guided as substantially uniform surface emitting light. Derived from the other main surface 82 of the optical plate 80.

  Further, regarding the configuration of the light guide plate, FIG. 8 exaggerates the size of the concave pattern 84 formed on one main surface 81 of the light guide plate 80 in order to facilitate understanding of the invention. Specifically, the surface area of the pattern 84 is sufficiently smaller than the surface area of the entire main surface 81 of the light guide plate 80 when viewed from a direction orthogonal to the main surface 81. Here, if the pattern 84 is formed deeply with respect to the inside of the one principal surface 81 of the light guide plate 80, even if the surface area of the pattern 84 when viewed from the direction orthogonal to the one principal surface 81 is small, the diffused light is emitted. The area of the reflecting surface to be generated is sufficiently provided. Therefore, according to the light guide plate 80 configured as described above, even if the surface area of the pattern 84 when viewed from the direction orthogonal to the one main surface 81 is small, the light from the light source 10 incident from the side surface 83 is reduced. The pattern 84 formed on the main surface 81 can be efficiently converted into diffused light and derived from the other main surface 82.

  Here, regarding the configuration of the light guide plate, a concave pattern made of a quadrangular pyramid has a rectangular surface at the bottom as in the light guide plate 90 shown in FIGS. It can be efficiently derived from the surface 91 and the other main surface 92. Specifically, a part of the light incident from the side surface 93 is irradiated to the lowermost part 95A of the one main surface side pattern 95 formed on the one main surface 91, for example, in a direction away from the side surface 93 and the other main surface. Reflected to the surface 92 side. Similarly, a part of the light incident from the side surface 93 is irradiated to the lowermost part 96A of the other main surface side pattern 96 formed on the other main surface 92 side, for example, in a direction away from the side surface 93 and one main surface. Reflected on the 91 side. Therefore, the light incident from the side surface 93 can be converted into diffused light more efficiently and derived from the one main surface 91 and the other main surface 92. Also, if the concave pattern is a pure quadrangular pyramid shape, the diffused light generated in the vicinity of the lowermost portion of the quadrangular pyramid has a very short distance from one surface 95B to the other surface 95C facing the tip. Therefore, the diffused light is greatly attenuated by the multiple reflection in the vicinity of the lowermost part and is not directly derived from the one principal surface 91 or the other principal surface 92. On the other hand, when the concave pattern has a rectangular surface at the lowermost part of the quadrangular pyramid, the diffused light generated in the vicinity of the lowermost part of the quadrangular pyramid is on the other surface 95C facing the one surface 95B in the vicinity of the lowermost pyramid. Since there is a certain distance between them, the light is derived directly from one main surface 91 or the other main surface 92 before multiple reflection. Therefore, the light incident from the side surface 93 can be derived from the main surface more efficiently.

  Further, regarding the configuration of the light guide plate, when the pattern 104 is formed so as not to face the main surface 101 and the other main surface 102 of the light guide plate 100 like the light guide plate 100 shown in FIG. Since the total number of patterns 104 visible from one main surface 101 or the other main surface 102 of the light guide plate 100 is increased as compared with the case where they are formed in the same manner, the difference in brightness of the diffused light derived from the light guide plate 100 is different. Get smaller.

  Similarly, regarding the configuration of the light guide plate, the depth of the pattern 114 formed on the one main surface 111 and the other main surface 112 of the light guide plate 110 is set as shown in FIG. It is good also as a structure which makes it relatively deep each time it distances from the side surface 113. When the depth of the pattern 114 is increased in this way, the surface area of the pattern 114 is increased, so that relatively large diffused light is generated. On the other hand, the intensity of light from the light source 10 attenuates and decreases relatively as the distance from the side surface 113 of the light guide plate 110 increases. Therefore, by adopting the configuration as described above, the intensity of the diffused light derived from the one main surface 111 and the other main surface 112 of the light guide plate 110 is averaged regardless of the distance from the side surface 113 of the light guide plate 110. Can be made.

  Similarly, regarding the configuration of the light guide plate, the depth of the pattern 124 formed on the one main surface 121 and the other main surface 122 of the light guide plate 120 is set as shown in FIG. It is good also as a structure which makes it relatively deep toward the center from the side surface 123 provided in both ends. When the depth of the pattern 124 is increased in this way, the surface area of the pattern 124 is increased, so that relatively small diffused light is generated at both ends of the light guide plate 120 and relatively large diffusion is performed at the center of the light guide plate 120. Light is generated. On the other hand, the intensity of light from the light source 10 attenuates and decreases relatively every time it goes from the side surfaces 123 provided at both ends of the light guide plate 120 toward the center. Therefore, with the above-described configuration, the intensity of the diffused light derived from the one main surface 121 and the other main surface 122 of the light guide plate 120 is averaged regardless of the distance from the side surface 123 of the light guide plate 120. Can be made. In particular, the configuration as described above is effective when the distance between the side surfaces 123 provided at both ends of the light guide plate 120 is long.

  In addition, regarding the configuration of the light guide plate, the height of the convex pattern formed on one main surface and the other main surface of the light guide plate (not shown) may be relatively increased every time the light pattern is moved away from the side surface of the light guide plate. good. Similarly, it is good also as a structure which makes the space | interval of the concave or convex pattern formed in the one main surface of the light-guide plate which is not shown in figure and another main surface relatively dense, whenever it distances from the side surface of a light-guide plate. Even with the above configuration, the intensity of diffused light derived from one main surface and the other main surface of the light guide plate can be averaged.

  Further, regarding the configuration of the light guide plate, a concave or convex pattern may be formed on the main surface of the light guide plate, for example, from a dot shape, a linear shape, or a combination thereof. Similarly, the concave or convex pattern may be formed only on a part of the light guide plates provided in a plurality. Further, the light guide plate is not limited to the above-described rectangular shape, and may be a hemispherical shape or a polyhedral shape, for example. The light guide plate 90 is applied with a silicone coating agent or glass coating agent (not shown) having functions such as waterproof, antifouling, and dustproof, or shown with functions such as waterproof, antifouling, and dustproof. A transparent resin may be coated.

  As mentioned above, according to the illuminating device 3 which concerns on 3rd Embodiment, the effect similar to the illuminating device 1 which concerns on 1st Embodiment mentioned above can be acquired. Furthermore, according to the illumination device 3 according to the third embodiment, a plurality of concave patterns 84 are formed on the main surface of the light guide plate 80 as shown in FIGS. 8 and 11A, for example. The plurality of diffused lights generated in the pattern 84 can be led out from the light guide plate 80 as substantially uniform surface emitting light. Therefore, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated using the diffused light with which the glare led out from the light guide plate 80 of the lighting device 3 is suppressed, for example.

  Moreover, according to the illuminating device 3 which concerns on 3rd Embodiment, a concave or convex pattern can be formed in the main surface of the light-guide plate 80 from dot shape, linear shape, or those combination, for example. Therefore, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated, for example, using diffused light with optimized intensity and light distribution characteristics derived from the light guide plate 80 of the lighting device 3.

  Similarly, according to the illumination device 3 according to the third embodiment, for example, as illustrated in FIG. 11C, the depth of the pattern 114 formed on the one main surface 111 and the other main surface 112 of the light guide plate 110 is set. The intensity of the diffused light derived from the one main surface 111 and the other main surface 112 of the light guide plate 110 is increased from the side surface 113 of the light guide plate 110 by increasing the depth relatively each time the distance from the side surface 113 of the light guide plate 110 is increased. Can be averaged regardless of distance. Therefore, for example, the periphery of the entrance / exit E of the building A shown in FIG. 1 can be illuminated uniformly using the diffused light with reduced glare that is led out from the light guide plate 110 of the lighting device 3.

  Similarly, according to the illumination device 3 according to the third embodiment, for example, as illustrated in FIG. 11D, the depth of the pattern 124 formed on the one main surface 121 and the other main surface 122 of the light guide plate 120 is set. The intensity of the diffused light derived from the one main surface 121 and the other main surface 122 of the light guide plate 120 is made relatively deeper toward the center from the side surfaces 123 provided at both ends of the light guide plate 120. The distance can be averaged regardless of the distance from the side surface 123 of 120. Therefore, even when the distance between the side surfaces 123 provided at both ends of the light guide plate 120 is long, for example, as shown in FIG. The area around the entrance E of the building A can be illuminated uniformly.

  Moreover, according to the illuminating device 3 which concerns on 3rd Embodiment, it is relative whenever the height of the convex pattern formed in the one main surface and other main surface of a light guide plate which is not shown in figure is separated from the side surface of a light guide plate. The distance between the concave or convex patterns formed on one main surface and the other main surface of the light guide plate (not shown) is relatively increased every time the light guide plate is moved away from the side surface of the light guide plate. The intensity of diffused light derived from one main surface and the other main surface can be averaged. Therefore, for example, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated uniformly using the diffused light with reduced glare derived from the light guide plate of the lighting device 3.

  Next, the manufacturing method of the light guide plate 80 thru | or the light guide plate 120 each arrange | positioned at the illuminating device 3 of the 3rd Embodiment of this invention is demonstrated concretely.

  For example, ultrasonic processing, heating processing, cutting processing, laser processing, molding processing, and silk printing processing can be used as a method for manufacturing the light guide plate 80 to the light guide plate 120. Hereinafter, each manufacturing method will be described. In the ultrasonic processing, the main surfaces of the light guide plate 80 to the light guide plate 120 are partially melted by using the ultrasonic vibration of the ultrasonic processing horn brought into contact with the main surfaces of the light guide plate 80 to the light guide plate 120. Thus, a concave pattern is formed on the main surface. Further, in the heat processing, the main surface of the light guide plate 80 to the light guide plate 120 is partially melted by using the heat of the processing tool brought into contact with the main surface of the light guide plate 80 to the light guide plate 120, thereby the main surface. A concave pattern is formed on the surface. Similarly, in the cutting process, the main surface of the light guide plate 80 to the light guide plate 120 is partially cut using a cutting tool that is rotated or biased while abutting the main surface of the light guide plate 80 to the light guide plate 120. A concave pattern is formed on the main surface. Similarly, in the laser processing, by using the heat of the laser light condensed on the main surface of the light guide plate 80 to the light guide plate 120, the main surface of the light guide plate 80 to the light guide plate 120 is partially melted, thereby A concave pattern is formed on the main surface. Similarly, in the molding process, a shape reflecting the outer shape of the light guide plate 80 to light guide plate 120 to be molded is formed inside the mold, and for example, the mold mounted on the injection molding machine is heated and softened. After the resin is injected, the resin is cooled to form a concave pattern, a convex pattern, or a concave and convex pattern on the main surfaces of the light guide plate 80 to the light guide plate 120.

  In addition, regarding the method of manufacturing the light guide plate 80 to the light guide plate 120, in silk printing, a plate having predetermined holes is brought into contact with the main surfaces of the light guide plate 80 to the light guide plate 120, and the curability is set through the holes. A convex pattern is formed on the main surface by adhering the resin to the main surface and partially covering the main surface with the resin. Further, for example, a particulate diffusion member that emits diffused light may be added to the resin that is the base material of the light guide plate 80 to 120 used for molding or silk printing. Similarly, what added the fine particle-like diffusion member which emits diffused light, for example to the resin which is the base material of the light-guide plate 80 thru | or the light-guide plate 120 which performs the ultrasonic processing, heating processing, cutting processing, or laser processing mentioned above. It may be used. Note that the light guide plate 80 to the light guide plate 120 may be formed by combining the above-described ultrasonic processing, heating processing, cutting processing, laser processing, molding processing, and silk printing processing. Specifically, for example, only the outer shapes of the light guide plate 80 to the light guide plate 120 are formed by molding, and then a concave pattern is formed on the main surface of the light guide plate 80 to the light guide plate 120 by ultrasonic processing, for example. good. Similarly, after forming only the outer shapes of the light guide plate 80 to the light guide plate 120 by molding, for example, a convex pattern may be formed on the main surface of the light guide plate 80 to the light guide plate 120 by silk printing, for example. .

  Finally, the configuration and main functions and effects of the lighting devices of the first to third embodiments according to the present invention will be specifically described for each claim.

  The illumination device 1 according to claim 1 has a light source 10 that emits light by electric power supplied from the outside, and a main surface that is disposed adjacent to the light source 10 and that guides light of the light source 10 that is incident from a side surface. The light guide plate 20 provided above, the holding member 50 including the first frame 30 and the second frame 40 that are disposed so as to cover the outer periphery of the light source 10 and the light guide plate 20, and the holding member 50. It is characterized by having a storage member 60 that is detachably stored and attached to the housing.

  According to such a configuration of claim 1, for example, the surroundings of the entrance E of the building A shown in FIG. 1 can be illuminated using light derived from the light guide plate 20 of the lighting device 1. Further, as shown in FIG. 2B, the storage member 60 of the lighting device 1 is rotated around the rotation portion 63 and pulled out from the inside of the housing M, and the holding member 50 is integrally extracted from the storage member 60. be able to. Therefore, for example, when the light source 10 or the light guide plate 20 is contaminated or damaged, the light source 10 or the light guide plate 20 can be easily cleaned or replaced without using any tools.

  The lighting device 1 according to a second aspect is dependent on the first aspect, wherein the first frame 30 has a convex protrusion 31 or a concave notch, and the second frame 40 has a convex protrusion 31. Alternatively, a concave notch 41 or a convex protrusion connected to the concave notch is formed.

  According to such a configuration of claim 2, as shown in FIG. 4A, for example, the protrusion 31 of the first frame 30 and the notch 41 of the second frame 40, for example, are engaged, and the light source 10 is guided. With the outer periphery of the optical plate 20 covered, as shown in FIG. 2B, the housing member 60 of the lighting device 1 is rotated around the rotating portion 63 and pulled out from the inside of the housing M, and the housing member The light guide plate 20 and the holding member 50 can be taken out integrally from 60.

  The lighting device 1 according to a third aspect is dependent on the first aspect, and the holding member 50 includes the first frame 30, the second frame 40, or the first frame 30 and the second frame 40 as a light source. 10 or the outer periphery of the light guide plate 20 is detachably covered and disposed.

  According to such a configuration of claim 3, the inner wall 32 of the first frame 30 and the inner wall 42 of the second frame 40 are configured to be held in contact with the outer periphery of the light source 10 or the light guide plate 20. Therefore, for example, when the light source 10 or the light guide plate 20 is contaminated or damaged, the light source 10 or the light guide plate 20 can be easily cleaned or replaced without using any tools.

  The lighting device 1 according to a fourth aspect is dependent on the first aspect, and the electric wire that supplies power to the light source 10 to the holding member 50, to one or both of the first frame 30 and the second frame 40. It is characterized by the formation of a hole for passing through.

  According to such a configuration of claim 4, for example, as shown in FIG. 2B, the storage member 60 of the lighting device 1 is rotated around the rotating portion 63 and pulled out from the inside of the housing M. Sometimes, it is possible to protect the electric wire that supplies power to the light source 10 without breaking.

  The lighting device 1 or the lighting device 2 according to claim 5 is dependent on claim 1, and the storage member 60 is rotatably attached to the housing M, or the storage member 70 is detachably attached to the housing N. It is characterized by being able to.

  According to such a configuration of claim 5, the specification of the storage member can be arbitrarily selected according to the environment where the lighting device is installed, the cost of manufacturing the lighting device, the preference of the person handling the lighting device, or the like. Can do.

  A lighting device 3 according to a sixth aspect is dependent on the first aspect, wherein a concave or convex pattern that guides irradiated light as diffused light is formed on the main surfaces of the light guide plate 80 to the light guide plate 120. It is characterized by being.

  According to such a configuration of claim 6, a plurality of diffused lights generated in a plurality of patterns can be led out from the light guide plate 80 to the light guide plate 120 as substantially uniform surface emitting light. Therefore, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated, for example, using the diffused light with suppressed glare that is led out from the light guide plate 80 to the light guide plate 120 of the lighting device 3.

  The illumination device 3 according to claim 7 is dependent on claim 6 and is characterized in that the concave or convex pattern is formed of dots, lines, or a combination thereof.

  According to such a configuration of claim 7, for example, the building A shown in FIG. 1 is used by using the diffused light with optimized strength and light distribution characteristics derived from the light guide plate 80 to the light guide plate 120 of the lighting device 3. The area around the doorway E can be illuminated.

  The lighting device 3 according to an eighth aspect is dependent on the sixth aspect, and the concave pattern is formed so as to be deeper each time the distance from the side surface with respect to the main surface of the light guide plate 110 or the light guide plate 120 is increased. It is characterized by.

  According to such a configuration of claim 8, for example, as shown in FIG. 11C, the depth of the pattern 114 formed on the one main surface 111 and the other main surface 112 of the light guide plate 110 is set to the depth of the light guide plate 110. The intensity of the diffused light derived from the one main surface 111 and the other main surface 112 of the light guide plate 110 is made not relatively close to the distance from the side surface 113 of the light guide plate 110 by being relatively deeper each time the distance from the side surface 113 is reached. Can be averaged. Therefore, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated using the diffused light with which the glare led out from the light guide plate 110 of the lighting device 3 is suppressed, for example.

  The lighting device 3 according to claim 9 is dependent on claim 6 and is characterized in that the convex pattern is formed so as to rise higher each time it moves away from the side surface with respect to the main surface of the light guide plate. Yes.

  According to such a configuration of claim 9, similarly to claim 8, it is possible to average the intensity of diffused light derived from one main surface and the other main surface of the light guide plate. Therefore, the surroundings of the entrance / exit E of the building A shown in FIG. 1 can be illuminated using the diffused light with which the glare led out from the light guide plate of the lighting device 3 is suppressed, for example.

1, 2, 3 Illumination device 10 Light source 11 Power connector 20, 80, 90, 100, 110, 120 Light guide plate 81, 91, 101, 111, 121 One main surface 82, 92, 102, 112, 122 Other main surface 83 , 93, 103, 113, 123 Side surface 84, 104, 114, 124 Pattern 95 One main surface side pattern 95A Bottom portion 96 Other main surface side pattern 96A Bottom portion 95B One surface 95C Other surface 30 First frame 31 Protrusion 32 Inner wall 40 Second frame 41 Notch 42 Inner wall 50 Holding member 60, 70 Storage member 61, 71 Storage unit 62, 72 Wiring hole 63 Rotating unit 64 Key 65, 75 Tempered glass 66, 76 Display film 67, 77 Edge A Building E Entrance / exit M, N Enclosure M1, N1 One end M2, N2 The other end M3, N3 Tempered glass M4, N4 Press edge M5 Wiring hole

Claims (9)

A light source that emits light by externally supplied power;
A light guide plate provided adjacent to the light source and provided with one or more main surfaces for deriving light of the light source incident from a side surface;
A holding member comprising a first frame and a second frame which are arranged to cover the outer periphery of the light source and the light guide plate and engage with each other;
An illumination device comprising: a housing member that detachably houses the holding member and is attached to a housing. A convex protrusion or a concave notch is formed in the first frame,
2. The lighting device according to claim 1, wherein the second frame is formed with a concave notch or a convex protrusion connected to the convex protrusion or the concave notch. The holding member is arranged such that the first frame, the second frame, or the first frame and the second frame detachably cover an outer periphery of the light source or the light guide plate. The lighting device according to claim 1, wherein: The hole for passing the electric wire which supplies the electric power which supplies electric power to the said light source in one or both of the said 1st frame and the said 2nd frame is formed in the said holding member. The lighting device described in 1. The lighting device according to claim 1, wherein the storage member is rotatably or detachably attached to the housing. 2. The illumination device according to claim 1, wherein a concave or convex pattern that guides irradiated light as diffused light is formed on the main surface of the light guide plate. The illumination device according to claim 6, wherein the concave or convex pattern is a dot, a line, or a combination thereof. The illumination device according to claim 6, wherein the concave pattern is formed so as to be deeper each time the distance from the side surface with respect to the main surface of the light guide plate. The lighting device according to claim 6, wherein the convex pattern is formed so as to rise higher with increasing distance from the side surface with respect to the main surface of the light guide plate.