WO2025197514A1 - Lighting device - Google Patents

Abstract

The present invention provides a lighting device that makes it possible to easily adjust the inclination of a light-emitting surface of a lighting panel in a state of being mounted to a wall surface panel.　This lighting device is configured to be mounted due to a portion thereof being inserted into a mounting through-hole of a wall surface panel, the lighting device comprising a lighting panel and a mounting bracket. The lighting panel has a panel body portion having a light-emitting surface, and a protruding portion that protrudes from the rear surface of the panel body portion. The mounting bracket has mounting claws, a surrounding portion that surrounds the protruding portion, and a restricting portion that restricts movement of the lighting panel in a separation direction. The mounting bracket makes it possible to mount the lighting panel to the wall surface panel by inserting the mounting bracket into the mounting through-hole and engaging the mounting claws with a rear-side main surface of the wall surface panel and/or with an inner wall surface of the mounting through-hole. The lighting panel is configured to be capable of rotating, relative to the mounting bracket, with the protruding portion serving as a rotation axis in a state in which the lighting panel is mounted to the wall surface panel.

Description

lighting equipment

The present invention relates to a lighting device that can be attached to a wall panel such as a ceiling.

2. Description of the Related Art Conventionally, lighting devices have been known that use, as light-emitting panels, organic EL panels that are thin and lightweight and emit light in a planar manner (see, for example, Patent Document 1).
The light-emitting panel of Patent Document 1 is laid out together with other light-emitting panels on an installation surface such as a ceiling, and the plurality of light-emitting panels can function as a single light-emitting surface with a unified appearance.

Patent No. 6296772

Meanwhile, unlike point-emitting LEDs, typical organic EL panels, as disclosed in Patent Document 1, have a rectangular light-emitting surface that has a direction.
When an organic EL panel is used as a light-emitting panel and is installed alongside other light-emitting panels as in Patent Document 1, if the light-emitting surface is tilted, the sense of unity with the other light-emitting panels is lost.
Therefore, when arranging light-emitting panels side by side, it is necessary to precisely position each light-emitting panel relative to the mounting surface.

The present invention therefore aims to provide a lighting device that allows the tilt of the light-emitting surface of the lighting panel to be easily adjusted while attached to a wall panel.

One aspect of the present invention that solves the above-mentioned problems is a lighting device that is mounted by being partially embedded in a mounting through-hole in a wall panel, the lighting device comprising a lighting panel and a mounting bracket, wherein the lighting panel has a panel main body with a light-emitting surface and a raised portion that protrudes from the back surface of the panel main body, the mounting bracket having mounting claws, a surrounding portion that surrounds the raised portion, and a restricting portion that restricts movement of the lighting panel in a direction away from the panel, the mounting bracket being inserted into the mounting through-hole and engaging the mounting claws with the back main surface of the wall panel and/or the inner wall surface of the mounting through-hole, thereby mounting the lighting panel to the wall panel, and the lighting panel being rotatable in a circumferential direction with respect to the mounting bracket, with the raised portion serving as the rotation axis, when the lighting panel is mounted to the wall panel.

In this aspect, the lighting panel can be rotated in the circumferential direction around the protruding portion as the axis of rotation relative to the mounting bracket, so the inclination of the light-emitting surface of the lighting panel can be easily adjusted even after it has been attached to the wall panel. This eliminates the need for precise positioning, making it easier to adjust the inclination of the light-emitting surface than with conventional methods.

In a preferred aspect, the raised portion fits loosely into the surrounding portion.

In this aspect, the raised portion is fitted into the surrounding portion with some play, making it easy to rotate the lighting panel relative to the mounting bracket.

A preferred aspect is to have an angle limiting portion that limits the angle at which the lighting panel can be rotated relative to the mounting bracket.

With this aspect, the lighting panel does not rotate too much relative to the mounting bracket, the angle is easily adjusted, and it is easy to align when placed next to other lighting devices.

In a preferred aspect, the lighting panel can be rotated within a range of 10 degrees.

In this aspect, the slight rotation makes it easier to fine-tune the tilt of the light-emitting surface, making it easier to align with other lighting devices.

In a preferred aspect, the raised portion has a limiting groove on its side, both ends of the limiting groove in the extension direction are closed by restricting walls, and the mounting bracket has a protrusion inserted into the limiting groove.

In this aspect, the protrusion of the mounting bracket abuts against the restricting wall, thereby restricting movement of the restricting groove of the lighting panel in the extension direction.

In a preferred aspect, the maximum length of the raised portion, when viewed in plan, is shorter than the maximum length of the surrounding portion and longer than the minimum length of the surrounding portion.

In this aspect, the difference in shape between the raised portion and the surrounding portion prevents the lighting panel from rotating too much, making fine adjustments easy.

One aspect of the present invention is a lighting device that is mounted by partially embedding it into a mounting through-hole in a wall panel, and includes a lighting panel and a mounting bracket. The lighting panel has a panel main body with a light-emitting surface and a raised portion that protrudes from the back surface of the panel main body. The mounting bracket has a surrounding portion that surrounds the raised portion and a restricting portion that restricts movement of the lighting panel in a direction away from the panel. The mounting bracket can be inserted into the mounting through-hole to mount the lighting panel to the wall panel. With the lighting panel mounted to the wall panel, the lighting panel can rotate circumferentially relative to the mounting bracket, with the raised portion serving as the rotation axis.

In this aspect, the lighting panel can be rotated in the circumferential direction around the protruding portion as the axis of rotation relative to the mounting bracket, so the inclination of the light-emitting surface of the lighting panel can be easily adjusted even after it has been attached to the wall panel. This eliminates the need for precise positioning, making it easier to adjust the inclination of the light-emitting surface than with conventional methods.

The above aspects may be mutually dependent, may quote some components, or may be substituted for other components, as long as they fall within the technical scope of the present invention.

According to the present invention, the inclination of the light-emitting surface of the lighting panel can be easily adjusted while it is attached to the wall panel.

1 is an explanatory diagram showing the state of a room in which a lighting device according to a first embodiment of the present invention is installed; FIG. 2 is a perspective view of the wall panel of FIG. 1 with the lighting device attached thereto. FIG. 3 is an exploded perspective view of the lighting device disassembled from the wall panel of FIG. 2. FIG. 4 is a perspective view of the lighting device of FIG. 3 as viewed from above. FIG. 5 is an exploded perspective view of the lighting device of FIG. 4. FIG. 6 is a perspective view of the lighting panel of FIG. 5, seen from a different direction from that of FIG. 5. 5A and 5B are explanatory diagrams of the lighting panel and mounting bracket of the lighting device of FIG. 4, where FIG. 5A is a plan view of the lighting panel as seen from the rear side, and FIG. 5B is a plan view of the mounting bracket as seen from the rear side. 3A and 3B are explanatory views of the main part of the room in FIG. 2, in which FIG. 3A is a cross-sectional view in the XZ plane, and FIG. 3B is a cross-sectional view in the YZ plane. 3A and 3B are explanatory diagrams for adjusting the angle of the light-emitting surface of the lighting device of FIG. 2, in which FIG. 3A is a cross-sectional view showing a state in which the light-emitting surface is tilted, and FIG. 3B is a cross-sectional view showing a state in which the light-emitting surface is corrected to the normal position. FIG. 10 is a perspective view of a main part of a room according to a second embodiment of the present invention.

Embodiments of the present invention will be described in detail below. Note that, unless otherwise specified, the positional relationships of up, down, left, right, front, and back are based on the posture shown in Figure 2.

A lighting device 1 according to a first embodiment of the present invention is attached to a wall panel 101 that constitutes a wall surface of a room 100, as shown in FIGS.
Specifically, the lighting device 1 is a recessed lighting device that is partially recessed into a mounting through-hole 102 in a wall panel 101 that constitutes the ceiling surface of a room 100, as shown in FIG.
The lighting device 1 is suitable for being aligned with other lighting devices 1 on a wall panel 101 as shown in FIG.
As shown in FIG. 3, the lighting device 1 includes a lighting panel 2 and a mounting bracket 3, and is detachable from a mounting through-hole 102 in a wall panel 101 without damaging the panel.

<Lighting panel 2>
The illumination panel 2 is a surface light-emitting panel having a light-emitting area 27 that emits light in a surface manner on a light-emitting surface 25, and specifically, is an organic EL panel.
As shown in FIGS. 4 and 5, the lighting panel 2 includes a panel body 10 and a raised portion 11.

(Panel main body 10)
As shown in FIGS. 5 and 6, the panel body 10 includes a body panel 20, edge ribs 21, and an annular rib 22.
As shown in FIGS. 3 and 4, the main panel 20 is a rectangular plate-like portion having a light-emitting surface 25 and a back surface 26 .
As shown in FIG. 3, the main panel 20 has a light-emitting area 27 on the central side of the light-emitting surface 25 .
The light emitting area 27 is a rectangular area that emits light in a planar manner when lit.

As shown in FIGS. 5 and 6 , the edge ribs 21 are rectangular annular convex stripes that extend along each side of the main panel 20 and protrude upward from the main panel 20 .
The edge rib 21 is a spacing maintaining member that maintains the spacing between the front main surface 103 of the wall panel 101 and the back surface 26 of the main body panel 20 when the lighting device 1 is attached to the wall panel 101.

As shown in FIGS. 5 and 6, the edge rib 21 is made up of horizontal ribs 30a and 30b extending in the horizontal direction X and vertical ribs 31a and 31b extending in the vertical direction Y.
The longitudinal ribs 31a, 31b are provided at the center in the longitudinal direction Y with removal notches 32a, 32b cut out from the tip end toward the base end in the protruding direction.
The removal notches 32a, 32b are notches that communicate with the gap between the front main surface 103 of the wall panel 101 and the back surface 26 of the main panel 20 when the lighting device 1 is attached to the wall panel 101, and are used to remove the lighting device 1 from the wall panel 101 by inserting an operating tool such as a flathead screwdriver.

As shown in Figures 5 and 6, when viewed in plan from the back side, the annular rib 22 is a circular convex ridge that extends around the periphery of the raised portion 11 and protrudes upward from the main panel 20.
The annular rib 22 is a spacing maintaining member that maintains the spacing between the front main surface 103 of the wall panel 101 and the back surface 26 of the main body panel 20 when the lighting device 1 is attached to the wall panel 101.

(Protuberance 11)
As shown in FIGS. 5 and 6, the raised portion 11 includes a raised main body portion 50 (angle limiting portion), side raised portions 51a and 51b, angle restricting portions 52 and 53 (angle limiting portions), and a support rib 55.

As shown in FIG. 7A, the raised main body 50 has an oval outer shape when viewed from the back, and has a shape in which both ends in the radial direction (lateral direction X) of an imaginary perfect circle C1 are cut out.
That is, as shown in Figure 7(a), the outer peripheral surface of the raised main body portion 50 has curved portions 60a, 60b having arc-shaped curved surfaces corresponding to the arc of the imaginary true circle C1, and flat portions 61a, 61b having rectangular flat surfaces corresponding to the chord of the imaginary true circle C1.

The side protrusions 51a, 51b are portions that protrude from the flat surfaces 61a, 61b of the protrusion main body 50 in the radial direction (lateral direction X) of the imaginary circle C1, and are provided with angle limiting grooves 62a, 62b (angle limiting portions, limiting grooves).
The angle limiting grooves 62a, 62b are grooves that limit the circumferential rotation angle of the lighting panel 2 relative to the mounting bracket 3, and are grooves that have a depth from the end faces in the protrusion direction (lateral direction X) of the side protrusions 51a, 51b toward the center of the protrusion main body 50.
The angle limiting grooves 62a, 62b extend along the radial direction of the imaginary perfect circle C1, and in this embodiment, extend in the vertical direction Y.
As shown in FIG. 6, both ends of the angle limiting grooves 62a and 62b in the extension direction are closed by limiting wall portions 63a and 63b.
The width of the angle limiting grooves 62a, 62b is greater than the maximum diameter of the limiting protrusions 72a, 72b (see FIG. 7B), and is preferably 1.05 to 1.5 times the maximum diameter of the limiting protrusions 72a, 72b.

As shown in FIGS. 5 and 6, the angle restriction portions 52 and 53 are ridge portions that protrude radially from the flat portions 61a and 61b and extend in the protruding direction (up-down direction Z).
The angle restricting portion 52 is a restricting portion that restricts the rotation of the lighting panel 2 in the forward direction by engaging with the mounting claws 71 a and 71 b of the mounting bracket 3 .
The angle restricting portion 53 is a restricting portion that restricts the rotation of the lighting panel 2 in the reverse direction by engaging with the mounting claws 71 a and 71 b of the mounting bracket 3 .
The angle restriction portions 52, 53 also serve as support portions that support the surrounding portion 70 of the mounting bracket 3 from below.

As shown in FIGS. 5 and 6, the support ribs 55 are provided on the curved surface portions 60a and 60b, and are support portions that support the surrounding portion 70 of the mounting bracket 3 from below.
As shown in FIG. 7, the support ribs 55 are convex ridges that protrude from the curved surface portions 60a and 60b in the radial direction of the imaginary perfect circle C1 and extend in the protruding direction (vertical direction Z).
Two support ribs 55 are provided on each of the curved surface portions 60a and 60b, and the support ribs 55 are arranged at intervals in the circumferential direction.

<Mounting bracket 3>
As shown in Figures 5 and 7(b), the mounting bracket 3 has an enclosing portion 70 (angle limiting portion), mounting claws 71a, 71b, and restricting protrusions 72a, 72b (restricting portion, angle limiting portion, protrusion).

(Enclosing portion 70)
The surrounding portion 70 is a cylindrical portion that surrounds the periphery of the raised portion 11 of the lighting panel 2 , and is a plate-like body that is processed into a shape that fits along the outer peripheral surface of the raised portion 11 .
As shown in FIG. 7B, the surrounding portion 70 has an oval inner peripheral surface when viewed from the rear, and has a shape in which both ends in the radial direction (lateral direction X) of an imaginary perfect circle C2 are cut out.
That is, the surrounding portion 70 has curved portions 80a, 80b having arc-shaped curved surfaces corresponding to the arc of the imaginary true circle C2, and flat portions 81a, 81b having rectangular flat surfaces corresponding to the chords, and an enclosed space 82 is formed surrounded by the curved portions 80a, 80b and the flat portions 81a, 81b.
The opening area of the surrounding portion 70 when viewed from the bottom side is larger than the outer surface area of the protruding main body portion 50, so that the protruding main body portion 50 can be inserted from below.
The surrounding portion 70 has a maximum length longer than the maximum length of the protruding portion 11 and a minimum length shorter than the minimum length of the protruding portion 11 .

(Mounting claws 71a, 71b)
The mounting claws 71a, 71b are leaf springs that are elastically deformable and engage with the rear main surface 105 of the wall panel 101 and/or the inner wall surface of the mounting through hole 102 of the wall panel 101 by their restoring force.
The mounting claws 71a and 71b are plate-like portions that are connected to the flat surfaces 81a and 81b of the surrounding portion 70 and extend tongue-like from the flat surfaces 81a and 81b.
As shown in FIG. 5, the mounting claws 71a and 71b each include an extending portion 85 and a folded portion 86. As shown in FIG.
The extension portion 85 is a portion that extends downward from the flat portions 81 a and 81 b of the surrounding portion 70 .
The folded portion 86 is a portion folded back from the tip end (lower end) of the extending portion 85 in the extending direction.

(Regulating protrusions 72a, 72b)
The regulating protrusions 72a, 72b are regulating parts that regulate the circumferential movement of the lighting panel 2 and the movement of the lighting panel 2 in the direction away from each other in the vertical direction Z, and are protrusions that protrude from the extension part 85 toward the inside in the radial direction (horizontal direction X) of the imaginary circle C2 shown in Figure 7 (b).
The restricting protrusions 72a, 72b in this embodiment are formed by the shanks of fastening elements such as screws, and are non-destructively attachable to and detachable from the flat surfaces 61a, 61b.
That is, the mounting bracket 3 can be removed from the lighting panel 2 by removing the fastening elements such as screws that constitute the restricting protrusions 72a and 72b.

<Wall panel 101>
The wall panel 101 is a decorative panel that forms the ceiling surface of the room 100, and is a plate-like panel having a front main surface 103 and a back main surface 105 as both main surfaces, as shown in FIG.
The wall panel 101 has a mounting through hole 102 penetrating through the thickness direction.
The mounting through-hole 102 is an insertion hole into which a part of the lighting device 1 can be inserted, and has a circular opening.
The diameter of the mounting through hole 102 is larger than the maximum diameter of the surrounding portion 70 .

Next, we will explain the positional relationships of each part of the lighting device 1 of this embodiment.

8 , in the lighting device 1, the raised portion 11 of the lighting panel 2 is inserted into the enclosed space 82 of the mounting bracket 3, and a gap is formed between the outer peripheral surface of the raised portion 11 of the lighting panel 2 and the inner wall portion of the enclosed portion 70 of the mounting bracket 3. In other words, the raised portion 11 of the lighting panel 2 is not tightly fitted into the enclosed portion 70 of the mounting bracket 3, but fits loosely into the enclosed portion 70 of the mounting bracket 3.
As shown in FIG. 9, the lighting panel 2 is rotatable in the circumferential direction with the protruding portion 11 as the axis of rotation relative to the mounting bracket 3 .
The rotatable angle of the lighting panel 2 is preferably within 10 degrees.

The lighting panel 2 has restricting protrusions 72a, 72b inserted into the angle limiting grooves 62a, 62b. In other words, the restricting walls 63a, 63b of the angle limiting grooves 62a, 62b restrict the circumferential rotation of the lighting panel 2 to the range in the extension direction of the angle limiting grooves 62a, 62b, and restrict movement in the up-down direction Z to the range in the width direction of the angle limiting grooves 62a, 62b.

4 , the lighting panel 2 has the extensions 85, 85 of the mounting claws 71 a, 71 b disposed between the angle restriction portions 52, 53 of the raised portion 11. That is, the angle restriction portion 52 of the raised portion 11 abuts against the extensions 85, 85 of the mounting claws 71 a, 71 b, thereby restricting forward rotation of the lighting panel 2, and the angle restriction portion 53 of the raised portion 11 abuts against the extensions 85, 85 of the mounting claws 71 a, 71 b, thereby restricting reverse rotation.
The lighting panel 2 supports the surrounding portion 70 by the upper ends of the angle restriction portions 52 and 53 and the upper ends of the support ribs 55 .

Next, we will explain the positional relationship of each part when the lighting device 1 of this embodiment is attached to the wall panel 101.

As shown in Figure 8, in the lighting device 1, the raised portion 11 of the lighting panel 2 and the surrounding portion 70 of the mounting bracket 3 are inserted into the mounting through hole 102 of the wall panel 101 from the front main surface 103 toward the back main surface 105, and the folded portions 86 of the mounting claws 71a and 71b are bent toward the extension portions 85, and their restoring force presses against the inner wall surface of the mounting through hole 102.
The lighting panel 2 has an edge rib 21 and an annular rib 22 abutting against the front main surface 103 of the wall panel 101, and a gap is formed between the front main surface 103 of the wall panel 101 and the back surface 26 of the main panel 20.
The removal notches 32a, 32b are positioned opposite the folded portions 86 of the mounting claws 71a, 71b, and by checking the positions of the removal notches 32a, 32b, it is possible to check the current position of the mounting bracket 3 within the mounting through-hole 102.

According to the lighting device 1 of the first embodiment, the lighting panel 2, when attached to the wall panel 101, can rotate circumferentially relative to the mounting bracket 3 with the protruding portion 11 serving as the rotation axis. This makes it easy to adjust the tilt of the light-emitting surface 25 of the lighting panel 2 even after it has been attached to the wall panel 101. For example, if the light-emitting surface 25 is tilted as shown in Figure 9(a), the light-emitting surface 25 can be brought to the correct position as shown in Figure 9(b) by rotating the lighting panel 2 in the direction of the arrow in Figure 9(a). This eliminates the need for precise positioning, making it easier to adjust the tilt of the light-emitting surface 25 compared to conventional methods.

In the lighting device 1 of the first embodiment, the raised portion 11 is loosely fitted into the surrounding portion 70, and because it is fitted into the surrounding portion 70 with some play, it is easy to rotate the lighting panel 2 circumferentially relative to the mounting bracket 3.

In the lighting device 1 of the first embodiment, the angle of rotation of the lighting panel 2 is limited by the angle restriction portions 52, 53 of the raised portion 11 abutting against the extension portions 85, 85 of the mounting claws 71a, 71b of the mounting bracket 3. This prevents the lighting panel 2 from rotating too much relative to the mounting bracket 3, facilitating angle adjustment and facilitating alignment when placed next to other lighting devices 1 as shown in Figure 1.

In the lighting device 1 of the first embodiment, the lighting panel 2 can be rotated slightly within a 10-degree angle, making it easier to fine-tune the inclination of the light-emitting surface 25 and aligning it with other lighting devices 1, as shown in Figure 1.

In the lighting device 1 of the first embodiment, the raised portion 11 of the lighting panel 2 has angle-limiting grooves 62a, 62b provided on the side surface into which the restricting protrusions 72a, 72b of the mounting bracket 3 are inserted. The restricting protrusions 72a, 72b abut against the restricting wall portions 63a, 63b of the angle-limiting grooves 62a, 62b, thereby restricting the movement of the angle-limiting grooves 62a, 62b of the lighting panel 2 in the extension direction, facilitating fine adjustments.

In the lighting device 1 of the first embodiment, the maximum length of the raised portion 11 in plan view is shorter than the maximum length of the surrounding portion 70, and longer than the minimum length of the surrounding portion 70. This prevents the lighting panel 2 from rotating excessively due to differences in shape between the raised portion 11 and the surrounding portion 70, making fine adjustments easy.

In the above embodiment, the lighting panel 2 has one light-emitting region 27 on the light-emitting surface 25, but the present invention is not limited to this. The lighting panel 2 may have multiple light-emitting regions 27 on the light-emitting surface 25. For example, as shown in Figure 10, when the light-emitting surface 25 has four light-emitting regions 27, it is preferable that the light-emitting regions 27 are arranged in a grid pattern.

In the above embodiment, the main panel 20 of the lighting panel 2 was a rectangular plate-like body, but the present invention is not limited to this. The main panel 20 of the lighting panel 2 may have other shapes. For example, it may be a polygonal shape such as a triangular, pentagonal, or hexagonal shape, or it may be a shape with a different aspect ratio, such as an elliptical shape.

In the above embodiment, the light-emitting area 27 of the lighting panel 2 has a shape similar to that of the main panel 20, but the present invention is not limited to this. The light-emitting area 27 of the lighting panel 2 may have a shape different from that of the main panel 20.

In the above embodiment, the lighting device 1 is fixed by the folded portions 86 of the mounting claws 71a, 71b of the mounting bracket 3 pressing against the inner wall surface of the mounting through-hole 102 of the wall panel 101 with an elastic restoring force, but the present invention is not limited to this. The lighting device 1 may also be fixed by the folded portions 86 of the mounting claws 71a, 71b of the mounting bracket 3 pressing against the rear main surface 105 of the wall panel 101 with an elastic restoring force.

In the above embodiment, the wall panel 101 constitutes the ceiling of the room 100, but the present invention is not limited to this. It may also constitute the wall or floor of the room 100. The wall panel 101 may also constitute a structure such as a desk.

In the above embodiment, the lighting device 1 is attached to the wall panel 101 by engaging the mounting claws 71a, 71 with the wall panel 101, but the present invention is not limited to this. The lighting device 1 may also be attached to the wall panel 101 by attaching the mounting bracket 3 to the wall panel 101 using a different method.

In the above embodiment, an organic EL panel was used as the lighting panel 2, but the present invention is not limited to this. Other types of surface light-emitting panels may also be used as the lighting panel 2. For example, a surface light-emitting panel in which LEDs are arranged in a planar fashion may also be used as the lighting panel 2.

The above-described embodiments may be freely substituted or added to in terms of their respective components, as long as they fall within the technical scope of the present invention.

REFERENCE SIGNS LIST 1 Illumination device 2 Illumination panel 3 Mounting bracket 10 Panel main body 11 Protruding portion 25 Light-emitting surface 50 Protruding main body (angle limiting portion)
52, 53 Angle regulation unit (angle limiting unit)
62a, 62b Angle limiting groove (angle limiting portion, limiting groove)
63a, 63b Restriction wall portion 70 Surrounding portion (angle limiting portion)
71a, 71b Mounting claws 72a, 72b Restricting convex portions (restricting portions, angle limiting portions, convex portions)
101 Wall panel 102 Mounting through hole

Claims (7)

A lighting device that is mounted by being partially embedded in a mounting through-hole of a wall panel,
The lighting panel has a mounting bracket.
The illumination panel has a panel body having a light-emitting surface and a protruding portion protruding from a rear surface of the panel body,
the mounting fixture has a mounting claw, a surrounding portion that surrounds the raised portion, and a restricting portion that restricts movement of the lighting panel in a direction away from the lighting panel,
The mounting fixture can be inserted into the mounting through hole and the mounting claw can be engaged with the rear main surface of the wall panel and/or the inner wall surface of the mounting through hole, thereby mounting the lighting panel to the wall panel,
The lighting panel is rotatable in a circumferential direction with the protrusion as a rotation axis relative to the mounting bracket when the lighting panel is attached to the wall panel. The lighting device of claim 1, wherein the raised portion is loosely fitted into the surrounding portion. The lighting device of claim 1, further comprising an angle limiting portion that limits the rotatable angle of the lighting panel relative to the mounting bracket. The lighting device described in claim 3, wherein the lighting panel can be rotated within a rotation angle of 10 degrees or less. The raised portion has a limiting groove on a side surface, and both ends of the limiting groove in an extension direction are closed by a restricting wall portion,
The lighting device according to claim 3 , wherein the mounting bracket includes a protrusion inserted into the limiting groove. The lighting device described in claim 3 or 4, wherein the maximum length of the raised portion, when viewed in a plan view, is shorter than the maximum length of the surrounding portion and longer than the minimum length of the surrounding portion. A lighting device that is mounted by being partially embedded in a mounting through-hole of a wall panel,
The lighting panel has a mounting bracket.
The illumination panel has a panel body having a light-emitting surface and a protruding portion protruding from a rear surface of the panel body,
the mounting bracket has a surrounding portion that surrounds the protruding portion and a restricting portion that restricts movement of the lighting panel in a direction away from the lighting panel,
the mounting bracket is inserted into the mounting through-hole to mount the lighting panel to the wall panel;
The lighting panel is rotatable in a circumferential direction with the protrusion as a rotation axis relative to the mounting bracket when the lighting panel is attached to the wall panel.