JP2019029161A - Lighting device - Google Patents

Abstract

To provide a lighting device which is advantageous for inhibiting entry of insects into a cover and improving drainage of water accumulated in the cover.SOLUTION: A lighting device includes: a housing which stores a light source; a cover 14 attached to the housing and provided with a hole; and a mesh part 24 in which an adhesion layer 32 is provided at a lower surface side peripheral edge part and covers the hole 26. The cover 14 has a recessed part 28 including: a first bottom surface 28a to which the adhesion layer 32 is adhered; and a second bottom surface 28b which is deeper than the first bottom surface 28a. A gap G between the second bottom surface 28b and the adhesion layer 32 communicates with an upper surface side space of the mesh part 24 and a lower surface of the mesh part 24.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to a lighting fixture.

  Conventionally, there are lighting fixtures installed outdoors such as street lights and security lights. Such a lighting fixture has a translucent cover which covers a light source. The cover is closely attached to a housing that is a main body of the lighting fixture for protection of the light source, waterproofing, and the like. However, for example, due to a temperature difference between the inside and the outside of the cover, water may accumulate in the cover due to water entering from outside or condensation inside. Therefore, Patent Literature 1 discloses a lighting fixture having a cover including a drain hole for draining water accumulated inside to the outside.

JP 2014-60034 A

  In the lighting fixture disclosed in Patent Document 1, if the opening of the drainage hole is large, the water accumulated in the cover is easily drained to the outside, but on the other hand, insects enter from the outside through the drainage hole. Since it becomes easy, it is not desirable. Therefore, it is conceivable that the opening shape of the drain hole is made smaller than the size of the insect that is supposed to enter. However, for example, if the shape of the drain hole is a slit with a slit width smaller than the size of the insect, water may not be able to escape from the drain hole due to the surface tension of the water accumulated in the cover. is there.

  It is also conceivable to suppress the invasion of insects by setting the opening of the drain hole relatively large and covering the opening of the drain hole with a mesh sheet having an opening size smaller than the size of the insect. However, since the surface of the mesh sheet has water repellency, water cannot pass through the mesh sheet, and as a result, water may not be able to escape from the drain hole.

  This indication is made in view of the subject which such a prior art has. And the objective of this indication is providing the lighting fixture advantageous in improving the drainage property of the water collected in the cover while suppressing the penetration | invasion of the insect into the cover.

  In order to solve the above-described problems, a lighting fixture according to an aspect of the present disclosure includes a housing that stores a light source, a cover that is attached to the housing and has a hole, and an adhesive layer that is provided on a peripheral portion on the lower surface side. The cover includes a mesh portion covering the hole, and the cover has a recess including a first bottom surface to which the adhesive layer is bonded and a second bottom surface deeper than the first bottom surface, and the second bottom surface and the adhesive layer The gap between the two communicates with the space on the upper surface side of the mesh portion and the lower surface of the mesh portion.

  According to the present disclosure, it is possible to provide an illuminating device that is advantageous in suppressing the invasion of insects into the cover and improving the drainage of the water accumulated in the cover.

It is a figure which shows the lighting fixture which concerns on one Embodiment of this indication. It is a figure which shows the shape of the drain hole part currently formed in the cover. It is a figure which shows the structure of a mesh part. It is a figure which shows a mode that a mesh part is attached to a drain hole part in time series. It is a figure which shows the positional relationship of the drain hole part and mesh part in a drain part. It is a figure which shows a mode that the water in a cover escapes from a drain part.

  Hereinafter, the present embodiment will be described in detail with reference to the drawings. In the following description, the vertical direction is defined as the Z direction in a state where the lighting fixture is attached to a column, a utility pole, a pole, etc., and the X direction and the Y direction are perpendicular to each other in a plane perpendicular to the Z direction. Is specified.

  First, the structure of the lighting fixture which concerns on this embodiment is demonstrated. FIG. 1 is a perspective view showing an appearance of a lighting fixture 100 according to the present embodiment. It is assumed that the luminaire 100 is installed outdoors, for example, as a street light or a crime prevention light. Moreover, as an example, the lighting fixture 100 is supported by the front-end | tip part 2a of the support | pillar 2 standingly arranged on the road surface. Note that the lighting apparatus 100 may be directly supported by, for example, an existing power pole instead of the support 2. Furthermore, the luminaire 100 is supported by the support column 2 so that the arrangement direction of the plurality of light sources 12 along the longitudinal direction of the housing 10 is inclined with respect to the horizontal plane in, for example, the XZ plane.

  The luminaire 100 first includes a housing 10, a light source 12, and a cover 14.

  The housing 10 is a luminaire main body connected to the support column 2. The casing 10 has a rectangular parallelepiped shape with one direction as a longitudinal direction, and can accommodate the light source 12 and the like. The material of the housing 10 is, for example, a stainless material that is resistant to impact and hardly rusts.

  The light source 12 is a light emitting element such as an LED (light emitting diode). The luminaire 100 has a plurality of such light sources 12. For example, the plurality of light sources 12 are arranged at predetermined intervals on a substrate (not shown) with the longitudinal direction of the housing 10 as a reference. The substrate on which the light source 12 is mounted is fixed to the housing 10.

  The cover 14 covers the light emitting surface composed of the plurality of light sources 12 and is attached to the housing 10. The cover 14 is made of a light-transmitting material such as an acrylic material, and allows light emitted from the light emitting surface to be transmitted to the outside. That is, the cover 14 mainly configures the appearance of the lighting fixture 100 as a light exit surface, and protects the components such as the light source 12 from rain, wind and snow.

The shape of the cover 14 is, for example, a semi-cylindrical shape. In this case, the cover 14 includes a curved surface portion 14a having a length matched to the longitudinal direction of the housing 10, a first side surface portion 14b connected to one end of the curved surface portion 14a in the longitudinal direction, and a longitudinal direction of the curved surface portion 14a. And a second side surface portion 14c connected to the other end. The curved surface portion 14a mainly constitutes the light emission surface of the cover 14. Curved portion 14a includes a first edge side 14a ₁ and the second edge side 14a ₂ along the longitudinal direction of the curved surface portion 14a (see FIG. 2 (a)). The first side surface portion 14b includes a third end side of the first edge side 14a ₁ and the second edge side 14a ₂ perpendicular (not shown). The second side portion 14c includes a fourth edge side 14c ₁ of the first edge side 14a ₁ and the second edge side 14a ₂ perpendicular (see Figure 2 (b)). In addition, the first end side 14a ₁ , the second end side 14a ₂ , the third end side and the fourth end side 14c ₁ are continuous on the same plane, and the outer frame of the cover 14 is formed. The shape of the outer frame roughly matches the outer edge shape of the housing 10. An end portion of the outer frame of the cover 14 is a protruding portion 14 d (see FIG. 2B) that enters a part of the housing 10. When the cover 14 is attached to the housing 10, the protrusion 14 d is engaged with a part of the housing 10, and is fastened and fixed using a screw or the like (not shown) so that rain or the like inside the cover 14 can be prevented. Intrusion can be deterred.

  Moreover, the lighting fixture 100 has the drain part 20 which drains the water collected in the cover 14 outside. The drainage part 20 includes a drainage hole part 22 formed in the cover 14 and a mesh part 24 attached to the drainage hole part 22.

  FIG. 2 is an enlarged view showing the shape of the drain hole portion 22 formed in the cover 14. Fig.2 (a) is the top view which looked at the drain hole 22 from the Z direction upper direction. FIG. 2B corresponds to the IIB-IIB cross section in FIG. 2A and is a cross-sectional view cut along the XZ plane so as to pass through the center of the drain hole 22. In FIG. 2, the cover 14 is drawn in a posture when the lighting apparatus 100 is used.

When the luminaire 100 is supported so that the arrangement direction of the light sources 12 is inclined with respect to the horizontal plane in the XZ plane, the cover 14 attached to the housing 10 also has a longitudinal direction of the light emission surface in the XZ plane. Thus, the posture is inclined at an angle θ with respect to the horizontal plane. Therefore, when the lighting apparatus 100 is used, a height difference occurs in the cover 14, and in particular, a height difference H occurs in the height between the first side surface portion 14 b and the second side surface portion 14 c. In this state, the second side surface portion 14 c has a bottom surface 14 c ₂ that is a horizontal plane at a position corresponding to the lowest portion of the height difference H.

  The drain hole 22 includes a drain hole 26 and a drain groove 28.

The drain hole 26 is a hole that penetrates the second side surface portion 14 c so that one opening is opened at the bottom surface 14 c ₂ and the other opening is opened to the outside of the cover 14. Hereinafter, in order to various shapes and dimensions of the reference, defines the center of the bottom surface 14c ₂ side of the opening of the drain hole 26 and C. The formation position of the drain hole 26 in the Y direction, that is, the position in the width direction perpendicular to the longitudinal direction of the cover 14 is an intermediate position between the first end side 14a ₁ and the second end side 14a ₂ .

In the present embodiment, the drain hole 26, the axis perpendicular to the bottom surface 14c _2, namely, a hole around axis C axis as shown in FIG. 2 (b). In contrast, the drain hole 26, the hole center of the bottom surface 14c ₂ side of the opening is C, and the outer frame of the cover 14 has a central axis an axis parallel to the direction toward the housing 10, i.e. A hole having a central axis as an axis inclined with respect to the C axis may be used.

Water drain groove 28 is a concave portion formed on the bottom surface 14c _2. The drain groove 28 includes a first bottom surface 28a, a second bottom surface 28b, and a convex portion 28c.

The first bottom surface 28 a is formed around the drain hole 26. Specifically, the planar shape of the first bottom surface 28 a is an annular shape that is concentric with the opening on the bottom surface 14 c ₂ side of the drain hole 26. The first wall portion 28d on the outer peripheral side of the first bottom surface 28a may be inclined so as to be closer to the opening center C from the height position of the bottom surface 14c ₂ toward the height position of the first bottom surface 28a. . Here, the outer diameter of the first bottom surface 28a is defined as L1. Further, the depth of the first bottom surface 28a is defined as D1.

The second bottom surface 28b divides at least part of the annular first bottom surface 28a. Specifically, one end portion 28b ₁ inside of the second bottom surface 28b, and the outer other end portion 28b ₂ of the second bottom surface 28b, is on the imaginary line Lv extending radially through the aperture center C. At this time, the one end portion 28b ₁ is connected to the convex portion 28c. The other end 28b ₂ is located at a position where the distance from the opening center C is longer than the distance ((outer diameter L1) / 2) to the outer peripheral end of the first bottom surface 28a. That is, a portion of the second bottom surface 28b, in the plane is parallel to the bottom surface 14c _2, than the outermost end of the first bottom surface 28a to protrude outward. If the depth of the second bottom surface 28b is defined as D2, the depth D2 is deeper than the depth D1 of the first bottom surface 28a.

  The drain groove 28 may have a plurality of second bottom surfaces 28b. In the present embodiment, the drain groove 28 has two second bottom surfaces 28b, and the two second bottom surfaces 28b are arranged in a straight line on the imaginary line Lv across the opening center C. To do. In FIG. 2A, the virtual line Lv is a line parallel to the width direction of the cover 14, but strict parallelism is not required, and the virtual line Lv is not required to be parallel to the longitudinal direction of the cover 14. It may be a parallel line.

Further, the planar shape of the second bottom surface 28b, as shown in FIG. 2 (a), the portion including the end portion 28b ₁ of the second bottom surface 28b may be curved to match the peripheral shape of the convex portion 28c . The portion including the other end portion 28b ₂ of the second bottom surface 28b may be curved to be convex toward the outer circumferential direction.

The convex portion 28 c is formed around the opening on the bottom surface 14 c ₂ side of the drain hole 26. The height position of the upper bottom of the convex portion 28c is lower than the bottom surface 14c _2. On the other hand, the height position of the lower bottom portion of the convex portion 28c is the same as the height of either the first bottom surface 28a or the second bottom surface 28b. The second wall portion 28c ₁ at the outer peripheral side of the protrusion 28c is away from the aperture center C as the height of the convex portion 28c is lower, may be inclined. Here, the outer diameter of the bottom surface portion connected to the second bottom surface 28b among the bottom surface portions of the convex portion 28c is defined as L2.

In the present embodiment, among the side wall portions of the convex portion 28c, the side wall portion opposite to the second wall portion 28c ₁ also serves as the inner surface of the drain hole 26, but the shape is not necessarily required. It is not a thing. Side wall portion opposite to the second wall portion 28c _1, without also serving as an inner surface of the drain hole 26, the convex portion 28c is being erected, independently of the first bottom surface 28a and a second bottom surface 28b Also good.

  FIG. 3 is a diagram illustrating the configuration of the mesh unit 24. FIG. 3A is a plan view of the mesh portion 24. FIG. 3B is a cross-sectional view of the mesh portion 24 corresponding to the IIIB-IIIB cross section of FIG. FIG. 3C is a plan view in which a part of the mesh sheet 30 is enlarged.

  The mesh part 24 includes a mesh sheet 30 and an adhesive sheet 32.

  The mesh sheet 30 is a circular sheet composed of fine stitches. The mesh sheet 30 is used to prevent insects entering the cover 14 from entering through the drain holes 26. Referring to FIG. 3C, a worm LB having a total length of about 1 mm is assumed as an insect to enter the lighting apparatus 100. Therefore, as the mesh sheet 30, one having an opening size AP of, for example, about 400 μm can be adopted. Here, the outer diameter of the mesh sheet 30 is defined as L3. Further, the thickness of the mesh sheet 30 is defined as T1.

  The adhesive sheet 32 is an annular sheet whose band width is defined as W, and both surfaces are adhesive. The adhesive sheet 32 is bonded to the peripheral edge of one surface of the mesh sheet 30. Here, the inner diameter of the adhesive sheet 32 is defined as L4. That is, the inner diameter L4 is (outer diameter L3- (band width W × 2)). One surface of the adhesive sheet 32 is bonded to the mesh sheet 30. Here, the thickness of the mesh portion 24 in a state where the adhesive sheet 32 is bonded to the mesh sheet 30 is defined as T2.

  The adhesive sheet 32 is an example of an adhesive layer for attaching the mesh sheet 30 to the first bottom surface 28 a of the drain hole 22. For example, the adhesive layer may be composed of the adhesive itself applied to the mesh sheet 30 instead of the adhesive sheet.

  FIG. 4 is a diagram showing a state in which the mesh portion 24 is attached to the drain hole portion 22 in time series. FIG. 4A shows a state before the mesh portion 24 is attached. FIG. 4B shows a state after the mesh portion 24 is attached.

  As shown in FIG. 4 (a), the operator removes the mesh portion 24 in the direction indicated by the white arrow with the side on which the adhesive sheet 32 is present facing the drain hole portion 22. 22 close. Then, the operator places the adhesive sheet 32 in the first bottom surface 28a so that the mesh portion 24 is accommodated in the drain groove 28, in other words, the annular adhesive sheet 32 fits in the annular first bottom surface 28a. Paste to. Thereby, as shown in FIG.4 (b), the mesh part 24 is fixed to the drain hole part 22. As shown in FIG. Hereinafter, the state in which the mesh portion 24 is fixed to the drain hole portion 22 is referred to as a use state of the drain portion 20. Hereinafter, the surface of the mesh sheet 30 on which the adhesive sheet 32 does not exist and faces the inside of the lighting device 100 is referred to as the “upper surface” of the mesh sheet 30. On the other hand, the surface on which the adhesive sheet 32 exists and faces the drain hole 26 is referred to as the “lower surface” of the mesh sheet 30. This definition applies to the entire mesh unit 24 as well.

  FIG. 5 corresponds to the VV cross section of FIG. 4B and is a perspective view showing the positional relationship between the drain hole portion 22 and the mesh portion 24 in the drain portion 20.

First, the inner diameter L4 of the adhesive sheet 32 is set larger than the outer diameter L2 of the lower bottom portion of the convex portion 28c. That is, in a plane parallel to the bottom surface 14c _2, between the second wall portion 28c ₁ of the adhesive sheet 32 and the convex portion 28c, the space is formed. On the other hand, when the drainage unit 20 is in use, the adhesive sheet 32 is in contact with the first bottom surface 28a. On the other hand, since the depth D2 of the second bottom surface 28b is deeper than the depth D1 of the first bottom surface 28a, the adhesive sheet 32 is not in contact with the second bottom surface 28b. That is, a gap G is formed between the second bottom surface 28 b and the adhesive sheet 32. As a result, on the second bottom surface 28b, as indicated by an arrow AR, the mesh sheet 30 passes through the gap G from the space inside the cover 14 on the side where the drainage groove 28 is formed. A communication space S communicating with the lower surface is formed.

Further, the upper bottom portion 28 c ₂ of the convex portion 28 c is in contact with the lower surface of the mesh sheet 30 when the drainage portion 20 is in use. As a result, the communication space S does not communicate directly with the drain hole 26.

  Further, the planar shape of the mesh sheet 30 is set to match the planar shape of the first bottom surface 28a. Furthermore, the outer diameter L3 of the mesh sheet 30 is set slightly smaller than the outer diameter L1 of the first bottom surface 28a.

Furthermore, it is desirable that the thickness T2 of the mesh portion 24 is set to be smaller than the depth D1 of the first bottom surface 28a. That is, in the use state of the water drain part 20, the height of the upper surface of the mesh sheet 30 is in a position lower difference h than the height of the bottom surface 14c _2.

  Next, the effect | action of the lighting fixture 100, especially the effect | action of the drain part 20 are demonstrated.

FIG. 6 is a diagram showing, in time series, a state in which water accumulated in the cover 14 is drained to the outside through the drain portion 20. As described above, when the lighting apparatus 100 is used, the cover 14 is inclined at an angle θ. Therefore, when water is generated in the cover 14, the water WA in which the water has gathered travels along the inner surface 14 a ₃ of the curved surface portion 14 a toward the bottom surface 14 c _{2 as shown} in FIG. In this embodiment, drain 20 is present on the bottom surface 14c ₂ of the cover 14. Accordingly, the water WA collected on the bottom surface 14c ₂ is accumulated on the drainage portion 20 as shown in FIG. 6 (b).

  Here, as a comparative example, consider a case where the drainage portion has a configuration in which a sheet such as the mesh sheet 30 illustrated above covers the opening of the drainage hole. In this case, since the mesh sheet has a very small opening size, it is possible to prevent insects entering the cover from the outside through the drain holes. However, in such a mesh sheet with a small opening size, the sheet surface has water repellency. Therefore, the water collected on the mesh sheet is repelled on the sheet surface and is difficult to pass through the mesh sheet.

  On the other hand, if not only the upper surface on one side of the mesh sheet, on the side where water accumulates, but also the lower surface on the other side of the mesh sheet on the side facing the drain hole, the mesh sheet The whole is immersed in water, and the water repellency of the mesh sheet is suppressed. Therefore, in the present embodiment, the water draining portion 20 employs the mesh sheet 30 and further employs the water draining groove 28 having the above shape.

Referring to FIG. 6 (b) again, the water WA accumulated on the drainage portion 20 is also present above the drainage groove 28, particularly the second bottom surface 28b. Here, referring to FIG. 5, in a plane parallel to the bottom surface 14 c ₂ , the mesh portion 24 is in relation to the distance from the outer peripheral end of the mesh portion 24 to the first wall portion 28 d connected to the first bottom surface 28 a. The area on the second bottom surface 28b outside the outer peripheral edge is set wider. Therefore, the water WA that has flowed above the second bottom surface 28 b is guided in the communication space S along the arrow AR, and finally reaches the lower surface of the mesh sheet 30. As a result, not only the upper surface but also the lower surface of the mesh sheet 30 is wetted with the water WA, so that the entire mesh sheet 30 is immersed in the water WA. As a result, the water repellency of the mesh sheet 30 is suppressed, so that the water WA accumulated on the drainage portion 20 is then moved to the outside of the cover 14 through the drainage hole 26 as shown in FIG. Gradually drained.

  Next, the effect by the lighting fixture 100 is demonstrated.

  The luminaire 100 according to the present embodiment includes a housing 10 that houses the light source 12, a cover 14 that is attached to the housing 10 and provided with a hole, and an adhesive layer is provided on a peripheral portion on the lower surface side. And a covering mesh portion 24. The cover 14 includes a first bottom surface 28a to which the adhesive layer is bonded, and a second bottom surface 28b deeper than the first bottom surface 28a, and has a recess that accommodates the mesh portion 24. The gap G between the second bottom surface 28 b and the adhesive layer communicates with the space on the upper surface side of the mesh portion 24 and the lower surface of the mesh portion 24.

  Here, the hole corresponds to, for example, the drain hole 26. The adhesive layer corresponds to the adhesive sheet 32, for example. The concave portion corresponds to, for example, the drain groove 28.

  According to the luminaire 100 according to the present embodiment, by adopting the mesh portion 24 including the mesh sheet 30 as exemplified above, the insect LB trying to enter the cover 14 from the outside through the water drain hole 26 is removed. It can be prevented from entering. Therefore, in order to increase the drainage efficiency of the water WA in the cover 14 through the drain hole 26, the opening of the drain hole 26 can be increased. Specifically, for example, the size of the opening of the drain hole 26 can be made larger than the total length of the insect LB.

  Further, the water WA that has flowed above the second bottom surface 28 b is directly guided to the lower surface of the mesh portion 24 through the gap G, and can particularly wet the lower surface of the mesh sheet 30. Accordingly, the water repellency of the mesh sheet 30 is suppressed, and the water WA accumulated on the drainage portion 20 can be drained to the outside of the cover 14 through the drainage hole 26.

  Further, the mesh portion 24 is accommodated in the drain groove 28. Therefore, it is desirable that the shape and position of the drain groove 28 are set in advance according to the position where the mesh portion 24 is to be fixed. Thus, the operator can easily position the mesh portion 24 when fixing the mesh portion 24 to the drain groove 28, that is, when the adhesive sheet 32 is attached to the first bottom surface 28a.

  Moreover, in the lighting fixture 100 according to the present embodiment, the cover 14 has a convex portion 28 c formed between the hole and the adhesive layer. Further, a part of the lower bottom portion of the convex portion 28c is connected to the second bottom surface 28b.

  According to the luminaire 100 according to the present embodiment, the convex portion 28c can guide the water WA that has passed through the gap G toward the lower surface of the mesh portion 24 without waste, so that the lower surface of the mesh sheet 30 can be promptly used. Can be wet.

Further, in the lighting fixture 100 according to this embodiment, the upper base portion 28c ₂ of the convex portion 28c abuts the lower surface of the mesh portion 24.

According to the lighting fixture 100 according to the present embodiment, the communication space S communicating with the gap G and the drain hole 26 are not directly communicated with each other by being blocked by the convex portion 28c. Therefore, it insects LB which has penetrated from the outside through the drain hole 26, prevents a penetrating the lower surface of the mesh sheet 30, the interior of the cover 14 through the gap between the upper base portion 28c ₂ of the convex portion 28c it can.

  Moreover, in the lighting fixture 100 which concerns on this embodiment, the upper surface of the mesh part 24 exists in a position lower than the inner surface of the cover 14 in which the recessed part is formed.

Here, the inner surface of the cover 14 being recesses formed, for example, corresponds to a bottom surface 14c _2.

According to the luminaire 100 according to the present embodiment, since the water WA that has gathered on the bottom surface 14c ₂ is easily guided to the upper surface of the mesh portion 24 is located lower than the bottom surface 14c _2, waste water from the water drain part 20 Water WA remaining without being lost can be reduced as much as possible.

  Moreover, in the lighting fixture 100 which concerns on this embodiment, a part of 2nd bottom face 28b protrudes outside the outermost end of the 1st bottom face 28a.

  According to the luminaire 100 according to the present embodiment, the second bottom surface 28b outside the outer peripheral end of the mesh portion 24 than the distance from the outer peripheral end of the mesh portion 24 to the first wall portion 28d connected to the first bottom surface 28a. The upper area is wider. Accordingly, the water WA accumulated on the drainage portion 20 is easily guided to the region on the second bottom surface 28b.

  Furthermore, in the lighting fixture 100 according to the present embodiment, the recess is formed on the bottom surface on the inner surface side of the cover 14.

According to the luminaire 100 of this embodiment, especially when the cover 14 is inclined with respect to a horizontal plane, water drain grooves 28, for example, is formed on the bottom surface of the inner surface of the cover 14 such as the bottom surface 14c ₂ Will be. Therefore, the water WA generated inside the cover 14 can be guided to the drainage portion 20 along the inner surface of the cover 14.

  As mentioned above, although preferable embodiment was described, this embodiment is not limited to this, A various deformation | transformation and change are possible within the range of the summary.

10 Housing 12 Light source 14 Cover 24 Mesh part 26 Hole (drain hole)
28 Concave part (water drain groove)
28a First bottom surface 28b Second bottom surface 28c Convex part 32 Adhesive layer (adhesive sheet)
100 lighting equipment

Claims (6)

A housing for storing the light source;
A cover attached to the housing and provided with a hole;
An adhesive layer is provided on the peripheral portion on the lower surface side, and a mesh portion that covers the hole, and
The cover has a recess including a first bottom surface to which the adhesive layer is bonded and a second bottom surface deeper than the first bottom surface,
The clearance gap between the said 2nd bottom face and the said contact bonding layer is a lighting fixture connected to the space by the side of the upper surface of the said mesh part, and the lower surface of the said mesh part. The cover has a convex portion formed between the hole and the adhesive layer,
A part of the lower bottom portion of the convex portion is connected to the second bottom surface.
The lighting fixture according to claim 1.   The lighting apparatus according to claim 2, wherein an upper bottom portion of the convex portion abuts on the lower surface of the mesh portion.   The lighting device according to any one of claims 1 to 3, wherein an upper surface of the mesh portion is located at a position lower than an inner surface of the cover in which the concave portion is formed.   The lighting fixture according to any one of claims 1 to 4, wherein a part of the second bottom surface protrudes outside an outermost end of the first bottom surface.   The lighting device according to claim 1, wherein the concave portion is formed on a bottom surface on the inner surface side of the cover.

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