JP2018055807A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire capable of suppressing glare by allowing less direct light into a user's eyes from a light source.SOLUTION: A luminaire comprises a surface-emitting module including a light-emitting surface, and a reflector for covering the surface-emitting module with a space in between. The reflector has a cross-sectional shape extended toward two bottom points from one vertex. The surface-emitting module, the light-emitting surface of which faces the vertex side of the reflector, is at least partially positioned on one virtual plane P passing through the two bottom points. In the virtual plane P, a clearance exists between the surface-emitting module and the reflector.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a lighting device. In particular, the present invention relates to an illumination device that functions as local illumination for locally illuminating an irradiation object.

Conventionally, there is a pendant light as one of local illuminations (for example, Patent Document 1).
This pendant light is suspended from the ceiling and places a point light source at a position close to the object to be irradiated. Further, this pendant light is provided so that the point light source is covered with a pendant shade having an opening below, and the light irradiation direction faces the irradiation object.
According to this pendant light, it is possible to provide a point light source at a position lower than the ceiling and directly irradiate the irradiation object with light, so that the irradiation object is illuminated locally, compared to the illumination provided on the normal ceiling Can shine brightly.

Japanese Patent Laid-Open No. 2006-96009

  As described above, a conventional pendant light uses a point light source such as an LED as a light source, and hard light is directly irradiated to the user side. Therefore, there is a problem that irradiation light enters directly into the eyes of the user, the user feels dazzling, and the eyes become tired when used for a long time.

  Then, this invention makes it a subject to provide the illuminating device which a light source cannot enter directly into a user's eyes, and can suppress glare.

  The invention according to claim 1 for solving the above-described problem is a lighting device having a surface light emitting module including a light emitting surface and a reflecting plate that covers the surface emitting module with a space therebetween. The cross-sectional shape extends from one vertex toward two bottom points, and the surface emitting module has the light emitting surface facing the vertex side of the reflector, and at least a part of the surface emitting module has the two bottom points. The illumination device is located on one virtual plane that passes through, and a gap exists between the surface light emitting module and the reflector in the virtual plane.

According to the configuration of the present invention, the light emitting surface of the surface light emitting module faces the apex side of the reflecting plate with a space therebetween, and faces the opposite side to the light irradiation direction of the entire lighting device. That is, since the light emitting surface is hidden by the surface light emitting module itself when viewed from the user side positioned in the light irradiation direction, the light emitting surface as the light irradiation surface of the surface light emitting module does not directly enter the user's eyes. Therefore, it is possible to prevent the user from feeling glare as glare, and the eyes can be made less fatigued.
In addition, according to the configuration of the present invention, the light emitting surface is hidden, and the reflected light from the reflecting plate is emitted from the gap between the surface light emitting module and the reflecting plate in the virtual plane during lighting. The position of the light emitting surface becomes invisible from the person side, and a fantastic atmosphere can be produced.
According to the configuration of the present invention, since at least a part of the surface light emitting module is located on one virtual plane passing through the two bottom points, the surface light emitting module and the reflection plate in a direction orthogonal to the virtual plane. There is almost no step between the two and light leakage is difficult.

The invention according to claim 2 is the illumination device according to claim 1, wherein the reflecting plate has the following shape (1) or (2).
(1) A shape expanding in a curved shape from the one vertex toward the two bottom points (2) A shape in which two planes passing through the two bottom points are connected at the one vertex

  According to the configuration of the present invention, the reflected light from the reflecting plate spreads evenly, so that light unevenness is difficult to occur, and the irradiation object can be illuminated uniformly from the gap between the reflecting plate and the surface emitting module. For this reason, the lower part of the reflecting plate is also less likely to be relatively dark.

  The invention according to claim 3 is characterized in that the light emitting surface has a light emitting region that actually emits light when turned on, and the light emitting region is arranged in a range of a distance of 5 mm or less with respect to the virtual plane. The illumination device according to claim 1 or 2.

  According to the configuration of the present invention, the reflected light from the reflecting plate during lighting is less likely to leak from between the reflecting plate and the surface emitting module.

  The invention according to claim 4 includes an attachment portion that can be attached to the attachment surface, and a connecting member that connects the reflection plate and the attachment portion, and the reflection plate is more than the two bottom points. The said connection member is connected to the said vertex side, and it hangs down from the said attaching part, The said reflecting plate is each equipped with the 1st weight part in the said two bottom points, The 1-3 characterized by the above-mentioned. It is an illuminating device in any one of.

  According to the configuration of the present invention, since the first weight portion is located at the two bottom points, the center of gravity can be set to the bottom point side, and the posture of the reflector can be stabilized.

  The invention according to claim 5 is the illumination device according to claim 4, wherein the distance between the one vertex and each first weight portion is equal when the reflector is viewed from below.

  According to the configuration of the present invention, the reflecting plate can take a more stable posture.

  The invention according to claim 6 has a plurality of the connecting members, and each of the connecting members has a string shape and is arranged in a straight line, and the first weight portion connects the connecting members. 6. The lighting device according to claim 4, wherein the lighting device faces each other across a straight line.

  According to the configuration of the present invention, since the string-like connecting members are arranged in a straight line and the first weight portions are opposed to each other across the straight line connecting the connecting members, the reflecting plate takes a more stable posture. Can do.

  The invention according to claim 7 has an attachment portion that can be attached to a surface to be attached, and the surface emitting module is configured such that the light emitting surface faces the attachment surface side from the attachment portion or the reflection plate. The surface light emitting module has a pair of second weight portions, and the surface light emitting module has an equal distance between the center portion and the pair of second weight portions when viewed in cross section. It is an illuminating device in any one of Claims 1-6 characterized by these.

  According to the configuration of the present invention, since the respective second weight portions are provided on the respective end portions that are paired with the center portion interposed therebetween, the center of gravity can be taken at a low position, and the attitude of the surface emitting module High stability.

  The invention according to claim 8 is the illuminating device according to claim 7, characterized in that the two second weight portions are positioned at both ends when the surface emitting module is viewed in cross section.

  According to the configuration of the present invention, the surface emitting module can take a more stable posture.

  According to a ninth aspect of the present invention, the surface light emitting module includes a plurality of surface light emitting panels arranged side by side, and the second weight portion extends in a direction in which the surface light emitting panels are arranged side by side. The illumination device according to claim 7 or 8, wherein:

  According to the configuration of the present invention, since the second weight portion extends in the juxtaposition direction of the surface light emitting panels, in addition to increasing the stability, the rigidity in the juxtaposition direction of the surface light emitting panels can be reinforced. it can.

  The invention according to claim 10 has an attachment portion that can be attached to the attached surface, and the surface emitting module is configured such that the light emitting surface faces the attached surface side from the attachment portion or the reflecting plate. The reflective plate is open in a predetermined direction in a direction in which the light emitting surface of the surface light emitting module spreads, and the surface light emitting module has an end in the predetermined direction at the reflective plate. It is located inside the edge part of this, It is an illuminating device in any one of Claims 1-9 characterized by the above-mentioned.

  According to the configuration of the present invention, since the end portion of the surface emitting module in the predetermined direction is located inside the end portion of the reflecting plate in the predetermined direction, it is difficult for light to leak from the open portion of the reflecting plate.

  According to the illuminating device of the present invention, it is difficult for a light source to enter directly into a user's eyes, and glare can be suppressed.

It is a perspective view which shows typically the use condition of the illuminating device in 1st Embodiment of this invention. It is a disassembled perspective view of the illuminating device of FIG. It is the top view which looked at the surface emitting module of FIG. 2 from the light emission surface side. It is a disassembled perspective view of the surface emitting module of FIG. It is sectional drawing of the illuminating device of FIG. It is a top view of the surface emitting panel of FIG. It is the top view which looked at the illuminating device of FIG. 1 from the downward side. It is explanatory drawing of the illuminating device of FIG. 1, and is the perspective view showing the virtual plane. It is a perspective view of the illuminating device of 2nd Embodiment of this invention. It is a disassembled perspective view of the surface emitting module of FIG. It is sectional drawing of the illuminating device of FIG. It is a perspective view of the illuminating device of other embodiment of this invention. It is a perspective view of the surface emitting module of other embodiment of this invention. It is a perspective view of the illuminating device of other embodiment of this invention. It is a perspective view of the illuminating device of other embodiment of this invention. It is a perspective view of the illuminating device of other embodiment of this invention. It is sectional drawing of the illuminating device of other embodiment of this invention, (a) is a figure in case the center angle of a reflecting plate is 180 degree | times or more, (b) is a case where a reflecting plate is comprised by 4 surfaces. FIG. It is sectional drawing of the illuminating device of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail.

As shown in FIG. 1, the lighting device 1 according to the first embodiment of the present invention is a pendant light suspended from a ceiling surface 300 (attached surface), and is an irradiation target surface of an irradiation target object 302 such as a table. This is a local illumination device that locally illuminates 303.
As shown in FIG. 2, the lighting device 1 includes a surface light emitting module 2, a reflector plate 3, a mounting portion 5, and a pair of connecting members 6 a and 6 b.

The surface light emitting module 2 is a long plate light emitting device extending in a predetermined direction X as can be seen from FIGS. 2 and 4.
As shown in FIG. 4, the surface light emitting module 2 includes a plurality of surface light emitting panels 10, a frame member 11, and a protection member 12.
The surface light emitting panel 10 is a light emitting panel that has a planar shape and can emit planar light.
The surface emitting panel 10 is preferably an organic EL panel from the viewpoint of being lightweight and thin. By adopting an organic EL panel as the surface light emitting panel 10, it is possible to easily obtain illumination light having excellent characteristics such as softness and high color rendering, and to irradiate diffuse light.
The surface light emitting panel 10 may be a flexible panel having flexibility.

The surface light emitting panel 10 has a light emitting surface 15 on one main surface side.
As shown in FIG. 6, the light emitting surface 15 includes a light emitting region 20 that actually emits light and a non-light emitting frame region 21 that surrounds the light emitting region 20 when turned on.
The light emitting area 20 is an area that actually emits light when illuminated and emits light.
The light emitting region 20 is an overlapping portion of the anode layer, the organic functional layer including the organic light emitting layer, and the cathode layer when viewed from the front, and the organic EL element in which the anode layer, the organic functional layer, and the cathode layer are laminated in this order. It is a part corresponding to. That is, in the light emitting region 20, the organic light emitting layer emits light by applying a voltage to the anode layer and the cathode layer, and can be irradiated with light.

The light emitting region 20 has a quadrangular shape and is provided at the center of the light emitting surface 15.
The frame region 21 is a non-light emitting region that extends along the edge of the surface light emitting panel 10 and is continuous so as to surround the light emitting region 20. That is, the frame region 21 is located outside the light emitting region 20 and has a quadrangular ring shape.

As can be read from FIGS. 2 and 4, the frame member 11 includes a main body portion 30, fixing portions 31 a and 31 b, and a pair of panel-side weight portions 32 a and 32 b (second weight portions).
As can be seen from FIG. 4, the main body 30 is a horizontally long rectangular portion and includes a recess 35 that can accommodate the surface light emitting panel 10.
The concave portion 35 is a concave portion that can be fixed by fitting the surface light emitting panel 10, and includes protruding portions 36 and 37 at the bottom.
The ridges 36 and 37 are ribs protruding in the thickness direction (vertical direction) from the bottom, and are also support parts for supporting the surface light emitting panel 10.

The fixing portions 31a and 31b are portions that can be connected to the lower ends of the connecting members 6a and 6b, and are cylindrical protruding portions that protrude from the main body portion 30 in the thickness direction (vertical direction). That is, the fixing portions 31a and 31b have insertion holes into which the end portions of the connection members 6a and 6b can be inserted.
The fixing portions 31 a and 31 b are provided in the center portion in the vertical direction Y and are arranged in parallel in the horizontal direction X.

The panel-side weight portions 32 a and 32 b are weights that adjust the weight balance of the surface emitting module 2, and are formed of a material heavier than the other portions of the frame member 11.
The panel-side weight portions 32 a and 32 b are rod-shaped portions that are respectively provided at the ends of the frame member 11 in the longitudinal direction Y (short direction) and extend in the lateral direction X (longitudinal direction) of the frame member 11.
The weights of the panel-side weight portions 32a and 32b can be appropriately changed depending on the weight of other members of the surface emitting module 2, but are preferably 5% or more and 20% or less of the weight of the surface emitting module 2.

The protection member 12 is a plate-like member that protects the light emitting surface 15 of the surface light emitting panel 10.
The protection member 12 is a translucent member having translucency, and includes a light scattering portion 40 having light scattering properties on one surface. The protection member 12 of the present embodiment is an acrylic plate in which fine surface irregularities corresponding to the light scattering portion 40 are formed on one surface.
As can be read from FIG. 4, the protection member 12 includes insertion holes 41 a and 41 b through which the fixing portions 31 a and 31 b can be inserted.

Here, the positional relationship of each part of the surface emitting module 2 will be described.
The panel-side weight portion 32 a and the panel-side weight portion 32 b are opposed to each other in the vertical direction Y via the main body portion 30. In the present embodiment, the panel-side weight portion 32a and the panel-side weight portion 32b are opposed to each other with the fixing portions 31a and 31b located at the center in the vertical direction Y when viewed in cross section, as shown in FIG. It is located at both ends in the vertical direction Y.
As shown in FIG. 3, the surface light emitting module 2 includes a plurality of surface light emitting panels 10 arranged in a line in the horizontal direction X. Fixing portions 31a and 31b are located between the adjacent surface emitting panels 10 and 10. The panel-side weight portion 32a and the panel-side weight portion 32b extend in the direction in which the surface emitting panels 10 are arranged.

The panel-side weight portion 32a and the panel-side weight portion 32b have the same weight, and in the vertical direction Y, the distance from the fixing portion 31a (31b) located at the center position (center point) of the main body portion 30 to the panel-side weight portion 32a. Is equal to the distance from the fixed portion 31a (31b) to the panel-side weight portion 32b. That is, the moments acting on the panel-side weight portion 32a and the panel-side weight portion 32b in the vertical direction Y are equal.
Further, in the lateral direction X, the distances between the fixed portions 31a and 31b and the both end portions of the main body 30 are equal, and the distances between the center positions (center points) of the fixed portions 31a and 31b and the main body 30 are also equal.

The reflecting plate 3 is a plate that is suspended by the connecting members 6a and 6b and has a center of gravity on the lower side as in the case of a scoop, and is a semi-cylindrical member.
As shown in FIG. 2, the reflection plate 3 includes a main body portion 50 and a pair of plate-side weight portions 51 a and 51 b (first weight portions).
The main body portion 50 is a plate-like body bent in an arc shape when viewed from the lateral direction X, and forms an arc extending from the apex 52 toward the two bottom points 53a and 53b as shown in FIG. ing. That is, the main body 50 extends in a curved surface so as to connect the top line 57 in which the vertex 52 is continuous in the horizontal direction X and the bottom lines 58a and 58b in which the bottom points 53a and 53b are continuous in the horizontal direction X.
The reflection plate 3 includes connection portions 55 a and 55 b on the top line 57 of the main body portion 50.
The connection parts 55a and 55b are cylindrical parts erected from the main body part 50, and can be inserted through the connection members 6a and 6b.

It is preferable that at least the inner side surface (surface on the surface emitting module 2 side) of the main body 50 is a white turbid diffusion surface or a mirror surface. It is preferable that at least the inner surface of the main body 50 is a reflective surface capable of reflecting light.
Plate-side weight portions 51a and 51b are attached to the bottom points 53a and 53b of the main body 50 along the bottom lines 58a and 58b, respectively.
The plate-side weight portions 51 a and 51 b are weights that adjust the weight balance of the reflecting plate 3, and are made of a material heavier than other portions of the reflecting plate 3.

Moreover, the reflecting plate 3 is provided with an installation space 56 that is open in the lateral direction X (longitudinal direction) in the spreading direction of the light emitting surface 15.
The installation space 56 is a space surrounded by the main body 50, and is a space where a part or all of the surface light emitting module 2 is arranged when assembled.

  The attachment part 5 is a part that can be attached to the ceiling surface 300, and is a part that can hold the connection members 6a and 6b in a suspended position.

The connection members 6a and 6b are members that connect the attachment portion 5, the reflection plate 3, and the surface light emitting module 2, and are string members extending in a string shape.
In the present embodiment, the connection members 6a and 6b employ stainless steel wires.

  Then, the positional relationship of each member of the illuminating device 1 of this embodiment is demonstrated.

The attachment portion 5 is attached to the ceiling surface 300.
The connection members 6 a and 6 b have upper ends fixed to the attachment portion 5, intermediate portions thereof pass through the connection portions 55 a and 55 b of the reflector 3, and lower ends thereof are fixed portions 31 a of the frame member 11 of the surface emitting module 2. , 31b. That is, the reflecting plate 3 is fixed and suspended at the middle part of the connection members 6a and 6b, and the surface emitting module 2 is fixed and suspended at the lower ends of the connection members 6a and 6b.
The connecting members 6a and 6b are arranged on the top line 57 at a predetermined interval. That is, the connecting members 6a and 6b are arranged in a straight line in the lateral direction X.

The surface emitting module 2 is disposed in the installation space 56 of the reflecting plate 3, and the reflecting plate 3 covers the surface emitting module 2 with a predetermined interval.
As shown in FIG. 5, gaps 60 a and 60 b are formed between the reflector 3 and the surface emitting module 2 on the virtual plane P. Specifically, gaps 60 a and 60 b are formed at both ends in the vertical direction Y of the surface emitting module 2.

When viewed from the lower side, as shown in FIG. 7, the end portion of the surface emitting module 2 in the lateral direction X (longitudinal direction) is inward of the end portion of the reflector 3 in the lateral direction X (longitudinal direction). positioned. Both end portions of the surface emitting module 2 are preferably located 1 cm or more inside than both end portions of the reflector 3, and more preferably located 2.5 cm or more inside.
The distance R from the end surface of the reflecting plate 3 to the end surface of the surface emitting module 2 is preferably 25% or more and 150% or less of one side of the surface emitting panel 10, and 50% or more and 100% or less of one side of the surface emitting panel 10. It is more preferable that If it is this range, the emitted light from the surface emitting panel 10 located in the edge part side most in the horizontal direction X of the surface emitting module 2 will be sufficient for the surface emitting module 2 and the reflecting plate 3 to ensure sufficient light emission area. It is possible to prevent leakage from the gap in the lateral direction X.
A part of the reflector 3 is hidden by the surface emitting module 2. Specifically, the surface emitting module 2 overlaps in the lateral direction X in a range of 60% or more of the reflector 3.

The plate-side weight portions 51a and 51b of the reflecting plate 3 are respectively positioned outside the panel-side weight portions 32a and 32b of the surface emitting module 2 in the vertical direction Y.
The panel-side weight portions 32a and 32b and the plate-side weight portions 51a and 51b face each other with a space therebetween.
As shown in FIG. 5, the light emitting surface 15 of the surface emitting module 2 faces the apex 52 side of the reflecting plate 3, and the surface emitting module 2 passes through the plate-side weight portions 51 a and 51 b of the reflecting plate 3. It is located on the virtual plane P. That is, as can be seen from FIGS. 5 and 8, the surface light emitting module 2 is located in a virtual plane P including a straight line connecting the plate-side weight portions 51 a and 51 b.
The level difference between the lowermost surface of the reflector 3 and the light emitting area 20 of the surface emitting module 2 is more preferably within 5 mm, and even more preferably within 2 mm.
It is preferable that the lowermost surface of the reflecting plate 3 and the lowermost surface of the surface emitting module 2 are substantially free from any level difference, that is, substantially flush.
When viewed from the lateral direction X (longitudinal direction), the surface emitting module 2 is not hidden by the reflecting plate 3 and is directly visible.

According to the illuminating device 1 of the first embodiment, the panel-side weight portions 32a and 32b are respectively provided at the end portions of the main body portion 30, and the distance from the connection members 6a and 6b to the panel-side weight portions 32a and 32b is set. Since they are equal, the moments are equal, and the center of gravity moves below the surface-emitting panel 10 as compared with the case where the panel-side weight portions 32a and 32b are not provided. Therefore, the surface emitting module 2 can maintain a stable posture.
Similarly, according to the illuminating device 1 of 1st Embodiment, the board side weight parts 51a and 51b are each provided in the edge part of the main-body part 50, From the connection members 6a and 6b to the plate side weight parts 51a and 51b. Since the distances are equal, the moments are equal, and the center of gravity moves below the main body 50 as compared with the case where the plate-side weights 51a and 51b are not provided. Therefore, the reflecting plate 3 can maintain a stable posture.

  According to the illuminating device 1 of the first embodiment, the light emitting surface 15 of the surface light emitting module 2 is located on the inner side of the end portion in the lateral direction X of the reflecting plate 3, so Substantially all of the light is reflected by the reflector 3. Therefore, the amount of light can be increased.

According to the illuminating device 1 of 1st Embodiment, the light emission surface 15 of the surface emitting module 2 has opposed the vertex 52 of the reflecting plate 3 seeing from the user side, and by the surface emitting module 2 itself seeing from the user side. The light emitting area 20 of the light emitting surface 15 is hidden. Therefore, since the light emitting area 20 of the light emitting surface 15 of the surface light emitting module 2 does not directly enter the eyes of the user, it can be prevented from feeling dazzling as glare and the eyes can be made less fatigued. In addition, it is difficult for the user to understand the position of the light emitting surface 15, and a fantastic atmosphere can be produced.
Moreover, according to the illuminating device 1 of 1st Embodiment, the soft light from the surface emitting module 2 is reflected in the reflecting plate 3, and also becomes soft reflected light in the virtual plane P of the surface emitting module 2 and the reflecting plate 3. FIG. Since it radiates | emits from the clearance gaps 60a and 60b, a user is hard to produce discomfort, such as glare.
According to the illuminating device 1 of the first embodiment, the surface emitting module 2 is located on one virtual plane P passing through the two bottom points 53a and 53b, and therefore reflects light from the light emitting region 20 during lighting. The reflected light reflected by the plate 3 is less likely to leak from between the reflecting plate 3 and the surface emitting module 2 in the height direction. Moreover, since the reflector 3 is symmetrical, light is evenly emitted from the gap between the reflector 3 and the surface emitting module 2, and the lower part of the reflector 3 is also less likely to be relatively dark.

According to the illumination device 1 of the first embodiment, the installation space 56 is open in the lateral direction X from the gap between the reflector 3 and the surface light emitting module 2, so that light from the light emitting surface 15 of the surface light emitting module 2 is emitted. There is a risk of leakage from the gap.
So, according to the illuminating device 1 of 1st Embodiment, since the edge part of the horizontal direction X of the surface emitting module 2 is distribute | arranged inside the edge part of the horizontal direction X of the reflector 3, It is possible to prevent light from leaking from the opening direction of the installation space 56.

  Then, the illuminating device 100 of 2nd Embodiment is demonstrated. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The illuminating device 100 of 2nd Embodiment differs in the shape of the reflecting device from the illuminating device 1 of 1st Embodiment.

The reflection plate 101 of the illumination device 100 according to the second embodiment includes a main body portion 102 and plate-side weight portions 51a and 51b, as can be read from FIGS.
The main body portion 102 has an umbrella shape, and is formed by overlapping two plate-like portions 103a and 103b with a top line 57 when viewed from the side.
The plate-like parts 103a and 103b form an inclined surface, and the distance between the plate-like parts 103a and 103b gradually increases from the top line 57 side toward the bottom line 58a and 58b side.
As shown in FIG. 11, the angle θ1 formed between the plate-like portion 103a and the plate-like portion 103b is preferably 45 degrees or more and 135 degrees or less, and more preferably 60 degrees or more and 120 degrees or less. In the present embodiment, the angle θ1 formed by the plate-like portion 103a and the plate-like portion 103b is 90 degrees.
The angle θ2 formed between the connecting member 6a (6b) and the plate-like portion 103a is equal to the angle θ3 formed between the connecting member 6a (6b) and the plate-like portion 103a.
Plate-side weight portions 51a and 51b are respectively attached to the bottom lines 58a and 58b which are lower end portions of the plate-like portions 103a and 103b.
The plate-like portions 103a and 103b have the same length (the length from the top line 57 to the bottom lines 58a and 58b).

The reflection plate 101 includes an installation space 105 that is open in the lateral direction X (longitudinal direction) in the spreading direction of the light emitting surface 15.
The installation space 105 is a space surrounded by the plate-like portions 103a and 103b of the main body portion 102, and is a space where a part or all of the surface light emitting module 2 is arranged when assembled.
The inner side surfaces of the plate-like portions 103a and 103b are preferably white turbid diffusion surfaces or mirror surfaces. That is, the inner side surfaces of the plate-like portions 103a and 103b are preferably reflective surfaces capable of reflecting light.

  Then, the positional relationship of each member of the illuminating device 100 of 2nd Embodiment is demonstrated.

As shown in FIG. 11, the surface emitting module 2 and the reflection plate 101 are arranged in an isosceles triangle shape.
The reflection plate 101 is provided with the surface emitting module 2 in the installation space 105 and covers the surface emitting module 2 with a predetermined interval.
When viewed from the lower side, the end portion of the surface emitting module 2 in the lateral direction X (longitudinal direction) is located inside the end portion of the reflector 101 in the lateral direction X (longitudinal direction). Therefore, a part of the reflector 101 is hidden by the surface emitting module 2. Specifically, the surface emitting module 2 overlaps in the lateral direction X in a range of 60% or more of the reflecting plate 101.
The length of the portion connecting the reflecting plate 101 and the surface emitting module 2 of the connecting members 6a and 6b (distance from the connecting portions 55a and 55b of the reflecting plate 101 to the fixing portions 31a and 31a of the surface emitting module 2) is the surface emitting module. 2 is equal to the distance from the fixed portions 31a and 31b to the bottom points 53a and 53b.

  In the above-described embodiment, the surface light emitting module 2 includes the plurality of surface light emitting panels 10, but the present invention is not limited to this. The surface emitting module 2 may include a single surface emitting panel 10 as shown in FIG.

  In the above-described embodiment, the surface emitting module 2 has the surface emitting panels 10 arranged in a line in the horizontal direction X, but the present invention is not limited to this. For example, it may be arranged in two rows in the vertical direction Y as shown in FIG. 13, or may be arranged in three or more rows.

  In the above-described embodiment, the panel-side weight portions 32a and 32b and the plate-side weight portions 51a and 51b are provided at the ends in the vertical direction Y which is the same direction of the surface light emitting module 2 and the reflection plate. It is not limited to this. For example, as shown in FIG. 14, panel-side weights 32 a and 32 b are provided at the ends in the horizontal direction X of the surface emitting module 2, and plate-side weights 51 a and 51 b are provided at the ends in the vertical direction Y of the reflector 3. May be.

  In 1st Embodiment mentioned above, although the shape of the reflecting plate 3 was a semicylindrical shape, this invention is not limited to this. For example, as shown in FIG. 15, the reflective plate 250 may have a hemispherical appearance. In this case, the surface light emitting module 2 preferably has a square light emitting surface 15 as a whole. Since the vertical and horizontal directions of the surface light emitting module 2 are blocked, the lighting device has less light leakage.

In the above-described embodiment, the installation space 56 of the reflecting plate 3 is opened from the end in the longitudinal direction, but the present invention is not limited to this. As shown in FIG. 16, the installation space 56 of the reflecting plate 3 may be blocked by the blocking portions 151a and 151b even at the ends in the longitudinal direction.
At this time, it is preferable that the blocking portions 151a and 151b have a structure that gradually expands from the top to the bottom.

In the first embodiment described above, the cross-sectional shape of the reflecting plate 3 is an arc having a central angle of 180 degrees, but the present invention is not limited to this. As shown in FIG. 17A, the cross-sectional shape of the reflector 3 may be an arc having a central angle of 180 degrees or more.
In the second embodiment described above, the reflecting plate 101 has a structure in which the two plate-like portions 103a and 103b form one corner portion with the top line 57, but the present invention is limited to this. It is not a thing. For example, as shown in FIG. 17B, a plurality of plate-like portions 103a to 103d are connected, and between the plate-like portions 103a and 103b adjacent to each other at the portion other than the top line 57 formed by the plate-like portions 103b and 103c and the plate-like shape. The corner portions 152a and 152b may be configured between the portions 103c and 103d.

  In the above-described embodiment, the reflector 3 and the surface emitting module 2 are suspended by the two connecting members 6a and 6b, but the present invention is not limited to this. The reflector 3 and the surface light emitting module 2 may be suspended by two or more connecting members 6. In this case, the connecting members 6 are preferably arranged in a straight line in a predetermined direction.

  In the above-described embodiment, the reflector 3 and the surface emitting module 2 are suspended by connecting the intermediate portion and the end portion of one connecting member 6a (6b), but the present invention is not limited to this. It is not limited. The attachment member 5 and the reflection plate 3 are connected by the connection member 6a, and the reflection plate 3 and the surface emitting module 2 are connected by the connection member 6b. And you may suspend the reflecting plate 3 and the surface emitting module 2 with respect to the ceiling surface 300 by each.

  In the above-described embodiment, the same lengths of the plate-like portions 103a and 103b and the weights of the plate-side weight portions 51a and 51b are used. However, the present invention is not limited to this, What is necessary is just to balance the moment in the weight parts 51a and 51b. For example, as shown in FIG. 18, when one plate-like portion 103a is short and the other plate-like portion 103b is long, the weight of the plate-side weight portion 51a is increased and the weight of the plate-side weight portion 51b is reduced. Also good.

  In the above-described embodiment, the organic EL panel is adopted as the surface light emitting panel, but the present invention is not limited to this. As the surface light emitting panel, for example, an LED panel in which LEDs are arranged in a planar shape, or an LED panel in which LEDs and a diffusion plate are combined may be employed.

  In the above-described embodiment, a flat panel is adopted as the surface light emitting panel, but the present invention is not limited to this, and the surface light emitting panel may be a curved panel.

  In the above-described embodiment, the surface light emitting module has a structure spread in a planar shape as a whole, but the present invention is not limited to this, and the surface light emitting module is spread in a curved shape as a whole. Also good.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Surface light emitting module 3,101 Reflector 5 Attachment part 10 Surface light emission panel 15 Light emission surface 20 Light emission area 31a, 31b Fixed part (center part)
32a, 32b Panel side weight (second weight)
51a, 51b Plate side weight (first weight)
52 Apex 53a, 53b Bottom point 56, 105 Installation space 60a, 60b Clearance 103a, 103b Plate-shaped part 300 Ceiling surface (attached surface)
P Virtual plane

Claims (10)

A lighting device having a surface emitting module including a light emitting surface, and a reflector that covers the surface emitting module with a space therebetween,
The reflecting plate has a cross-sectional shape extending from one vertex to two bottom points,
In the surface emitting module, the light emitting surface is opposed to the apex side of the reflector, and at least a part thereof is located on one virtual plane passing through the two bottom points,
In the virtual plane, there is a gap between the surface emitting module and the reflecting plate. The lighting device according to claim 1, wherein the reflecting plate has the following shape (1) or (2).
(1) A shape expanding in a curved shape from the one vertex toward the two bottom points (2) A shape in which two planes passing through the two bottom points are connected at the one vertex The light emitting surface has a light emitting region that actually emits light when turned on,
The lighting device according to claim 1, wherein the light emitting region is arranged in a range in which a distance from the virtual plane is 5 mm or less. An attachment portion that can be attached to a surface to be attached, and a connecting member that connects the reflector and the attachment portion;
The reflecting plate is suspended from the mounting portion with the connecting member connected to the apex side of the two bottom points,
The lighting device according to claim 1, wherein the reflecting plate includes first weight portions at the two bottom points.   The lighting device according to claim 4, wherein when the reflection plate is viewed from below, the distance between the one vertex and each first weight portion is equal. A plurality of the connecting members;
The connecting members are each in a string shape, and are arranged in a straight line,
The lighting device according to claim 4, wherein the first weight portions are opposed to each other with a straight line connecting the connection members interposed therebetween. It has a mounting part that can be attached to the mounting surface,
The surface emitting module is suspended from the mounting portion or the reflector so that the light emitting surface faces the attached surface side,
The surface emitting module has a pair of second weight portions,
The lighting device according to claim 1, wherein the surface light emitting module has a distance between a center portion and the pair of second weight portions that is equal when viewed in cross section.   The lighting device according to claim 7, wherein the surface emitting module has the two second weight portions located at both ends when viewed in cross section. The surface emitting module is configured by arranging a plurality of surface emitting panels in parallel,
The lighting device according to claim 7, wherein the second weight portion extends in a direction in which the surface light emitting panels are arranged side by side. It has a mounting part that can be attached to the mounting surface,
The surface emitting module is suspended from the mounting portion or the reflector so that the light emitting surface faces the attached surface side,
The reflecting plate is a spreading direction of the light emitting surface of the surface emitting module and is open in a predetermined direction;
The lighting device according to claim 1, wherein the surface emitting module has an end portion in the predetermined direction located on an inner side than an end portion of the reflecting plate.

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