Lighting fixture
By positioning the light source and power supply units on opposite sides of the fixture body, the design mitigates heat interference and reduces the fixture's size, achieving a compact and efficient lighting solution.
Patent Information
- Application Number
- JP2024074114
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-11-12
AI Technical Summary
Conventional lighting fixtures face issues where the light source unit and power supply unit generate heat, leading to mutual interference and increased fixture size due to their arrangement, which can result in a larger device body.
The lighting fixture design positions the light source unit and power supply unit on opposite sides of the fixture body, offset from the center, and arranges them so they do not overlap when viewed from the front or rear, and arranges them in a cylindrical shape with the power supply unit on the rear surface, while the light source unit is offset from the center of the front surface, preventing overlap and reducing thermal influence.
This configuration minimizes heat interference between the units and prevents the fixture body from becoming excessively large, allowing for a compact design that conserves resources and maintains effective lighting effects.
Smart Images

Figure 2025169097000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to lighting fixture technology. [Background technology]
[0002] 2. Description of the Related Art Conventionally, lighting fixtures that include a lighting fixture, a fixture body, a light source unit, and a power supply unit and are attached to a mounting surface such as a wall surface have been well known.
[0003] Patent Document 1 also describes a lighting fixture that is installed, for example, in a corridor in a common area of an apartment building or on a wall at a staircase landing. This lighting fixture includes a box-shaped fixture body having a front wall, a light source unit that emits illumination light toward the front of the front wall, a sensor that is installed on the front wall and detects the surrounding conditions, a cover that is installed in front of the front wall and covers the light source unit and the sensor when viewed from the front of the fixture body, and a normal lighting device that lights the light source of the light source unit with normal power supplied from a normal power source such as a commercial power system. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Publication No. 2020-161421 Summary of the Invention [Problem to be solved by the invention]
[0005] In the lighting fixture of Patent Document 1, the normal lighting device is provided on the rear surface of the front wall of the fixture body, and the light source unit is provided in a central portion of the front surface of the front wall of the fixture body. Here, the light source unit and the normal lighting device are preferably arranged so that they do not overlap when viewed from the front or rear and are as far apart as possible from each other, so as to prevent them from affecting each other due to the heat generated by each. In a configuration in which the light source unit is provided in a central portion of the front surface of the front wall of the fixture body, as in Patent Document 1, if the light source unit and the normal lighting device are arranged in positions that do not overlap when viewed from the front or rear, the size of the fixture body may increase when viewed from the front or rear.
[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its objective is to provide a lighting fixture that can prevent the light source unit and the power supply unit from affecting each other due to the heat generated by each unit, while preventing the fixture body from becoming too large. [Means for solving the problem]
[0007] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.
[0008] That is, the lighting fixture disclosed in the present application has: A lighting fixture comprising: a fixture body having a wall portion; a light source unit having a light source formed of an LED element; and a power supply unit that supplies power to the light source unit to light up the light source, The light source unit is provided on one side surface of the wall portion of the fixture body, The power supply unit is provided on the other side surface of the wall portion of the fixture body, the light source unit and the power supply unit are disposed at positions where they do not overlap when viewed from one side of the wall unit, The light source unit is disposed at a position offset from the center of the wall of the fixture body.
[0009] The lighting fixture disclosed in the present application can have the following configurations based on the above configuration. In the lighting fixture disclosed in the present application, the instrument body has a cylindrical side portion having one axial end connected to the wall portion, and the other axial end of the side portion is fixed to the mounting member, thereby being attached to the mounting member; The tool body is preferably configured so as to be attachable to the mounting member with the side portions at any angle in the circumferential direction relative to the mounting member.
[0010] In the lighting fixture disclosed in the present application, the light source unit has a diffusion cover that covers the light source, The fixture body includes a plurality of shades on a side of the wall portion in a direction in which light is emitted from the light source portion, The plurality of shades are arranged side by side so as to be spaced apart from the wall portion, It is preferable that the tip of the diffusion cover is located between two adjacent shades among the plurality of shades.
[0011] In the lighting fixture disclosed in the present application, The shade has a portion extending radially outward from the side portion, It is preferable that the center of the wall portion and the center of the shade are positioned so as not to overlap when viewed from one side of the wall portion. [Effects of the Invention]
[0012] The present invention has the following effects. That is, according to the present invention, it is possible to prevent the light source unit and the power supply unit from affecting each other due to the heat generated by each of them, while also preventing the device body from becoming larger. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a front view showing a lighting fixture according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 10 is a rear view showing the lighting fixture with the mounting member removed. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 2 is a cross-sectional view of the same lighting fixture taken along line AA in FIG. [Figure 8] FIG. DETAILED DESCRIPTION OF THE INVENTION
[0014] A lighting fixture 1 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 8. The lighting fixture 1 according to this embodiment is mounted on a mounting surface such as a wall (including an inclined surface). The lighting fixture 1 can also be mounted on a ceiling, not just a wall. In the following description, the side of the lighting fixture 1 that emits light is referred to as the "irradiation surface" of the lighting fixture 1, and the side of the lighting fixture 1 that faces the mounting surface is referred to as the mounting surface (opposite the irradiation surface). The mounting surface side of the lighting fixture 1 is the rear side (back side) of the lighting fixture 1. When the lighting fixture 1 is mounted on a mounting surface such as a wall W, if the direction perpendicular to the mounting surface is defined as the front-to-rear direction of the lighting fixture 1, the mounting surface side of the lighting fixture 1 will be referred to as the rear, and the direction of the irradiation surface side of the lighting fixture 1 will be referred to as the front. The direction perpendicular to the front-to-rear direction of the lighting fixture 1 will be referred to as the side of the lighting fixture 1. The up-down direction of the lighting fixture 1 when mounted on the mounting surface (wall W) will be described as the same as the up-down direction in FIG. 4. In the following description, the state in which the lighting fixture 1 is viewed from the front is referred to as a front view, and the state in which the lighting fixture 1 is viewed from the rear is referred to as a rear view. The state in which the lighting fixture 1 is viewed from a direction perpendicular to the front-to-rear direction is referred to as a side view. The state in which the cross-sectional shape of the lighting fixture 1 is viewed is referred to as a cross-sectional view.
[0015] The lighting fixture 1 shown in Figures 1 to 7 will be described. As shown in Figures 1 to 7, the lighting fixture 1 mainly comprises a fixture body 10, a light source unit 20, a power supply unit 25, and a mounting member 30. The mounting member 30 is fixed to a mounting surface, such as a ceiling surface or a wall surface, using screws or the like. The fixture body 10 is configured to be mounted to the mounting surface via the mounting member 30.
[0016] The fixture body 10 is configured in a generally cylindrical shape with a bottom. The fixture body 10 has a wall portion 11, a side portion 12, and an opening portion 13. The side portion 12 is configured in a cylindrical shape. The wall portion 11 is configured in a circular shape when viewed from the front, and is formed so as to cover one end (front end) of the side portion 12 in the axial direction (the front-to-rear direction of the lighting fixture 1). The other end (rear end) of the side portion 12 in the axial direction is configured to be open. The opening at the other end of the side portion 12 in the axial direction is configured as the opening portion 13.
[0017] The light source unit 20 is provided in the fixture body 10 and includes a light source and a diffusion cover 21. The light source is composed of LED elements 22. The light source generates heat when lit. In this embodiment, COB (Chip on Board) LED (Light Emitting Diode) elements are used. The diffusion cover 21 is translucent and covers the LED elements 22. The tip of the diffusion cover 21 is configured to be approximately hemispherical. The light source unit 20 is provided on one surface (front surface) of the wall portion 11 of the fixture body 10. The light source unit 20 is arranged to protrude forward from the front surface of the wall portion 11 of the fixture body 10. The light source unit 20 is configured to irradiate light emitted by the LED elements 22 forward beyond the wall portion 11 of the fixture body 10 via the diffusion cover 21. The light source unit 20 is arranged in a position offset to the left of the center of the wall portion 11 of the fixture body 10. The light source unit 20 is arranged in a position not overlapping with the power supply unit 25 when viewed from the front or rear.
[0018] The power supply unit 25 is a power supply device provided in the fixture body 10, and converts AC power, which is a commercial power source, into DC power to supply power to the light source unit 20 and light the light source unit 20. The power supply unit 25 generates heat mainly when converting AC power into DC power. The power supply unit 25 is provided on the other surface (rear surface) of the wall 11 of the fixture body 10. The power supply unit 25 is arranged so as to protrude forward from the rear surface of the wall 11 of the fixture body 10. The power supply unit 25 is arranged in a position offset to the left from the center of the wall 11 of the fixture body 10.
[0019] As described above, the light source unit 20 and the power supply unit 25 are positioned so that they do not overlap when viewed from the front or rear. Therefore, the distance between the light source unit 20 and the power supply unit 25 is greater than when the light source unit 20 and the power supply unit 25 overlap when viewed from the front or rear. This reduces the mutual influence of heat generated by the light source unit 20 and the power supply unit 25. In particular, when the light source of the light source unit 20 is an LED element, the back side of the light-emitting surface of the LED element generates the highest heat. Therefore, by arranging the light source unit 20 and the power supply unit 25 so that they do not overlap when viewed from the front or rear, the thermal influence of the light source unit 20 on the power supply unit 25 can be reduced. Furthermore, since the light source unit 20 is positioned offset from the center of the wall 11 of the fixture body 10, the fixture body 10 can be prevented from becoming larger, even when the light source unit 20 and the power supply unit 25 are positioned so that they do not overlap, compared to when the light source unit 20 is positioned in the central portion of the wall 11 of the fixture body 10. By forming the fixture body 10 in a compact size, the amount of material used to form the fixture body 10 can be reduced, making the lighting fixture 1 lighter and realizing resource conservation.
[0020] The lighting device 1 has a plurality of shades 40. The shades 40 are formed to have a reflective surface and are configured to reflect light emitted from the light source unit 20. In this embodiment, the plurality of shades 40 consists of two shades, a first shade 41 and a second shade 42, which are arranged spaced apart in the front-to-rear direction of the lighting device 1. The first shade 41 and the second shade 42 are arranged adjacent to each other. The first shade 41 and the second shade 42 are configured to be arranged closest to each other among the plurality of shades 40. The first shade 41 and the second shade 42 are arranged closer to each other in the direction of light irradiation from the light source unit 20 than the wall 11 of the lighting device body 10 (forward). The first shade 41 and the second shade 42 are arranged side by side in the front-to-rear direction so as to be spaced apart from the wall 11 of the lighting device body 10. The first shade 41 and the second shade 42 are arranged at a predetermined interval in the front-to-rear direction.
[0021] The first shade 41 is a flat member having an elongated round shape with a vertical longitudinal direction in a front view and a substantially semicircular protrusion on the right side. The first shade 41 is disposed closer to the wall 11 of the fixture body 10 than the second shade 42. The first shade 41 has a notch 41a. The notch 41a is a circular through-hole in a front view and is formed in the lower right part of the first shade 41. The notch 41a is configured to be slightly larger in diameter than the diffusion cover 21 of the light source unit 20. The diffusion cover 21 of the light source unit 20 is inserted into the notch 41a, and the tip end (front end) of the diffusion cover 21 of the light source unit 20 is positioned forward of the first shade 41 of the fixture body 10. Note that the first shade 41 is not limited to this shape and can have any suitable shape depending on the specifications, etc.
[0022] The second shade 42 is configured in an oval shape with the vertical direction as viewed from the front. A portion of the second shade 42 and a portion of the first shade 41 overlap when viewed from the front or rear. The second shade 42 and the light source unit 20 are positioned so that they overlap when viewed from the front or rear. The second shade 42 is located forward of the tip (front end) of the diffusion cover 21 of the light source unit 20, and the tip of the diffusion cover 21 of the light source unit 20 is located between the first shade 41 and the second shade 42. Note that the second shade 42 is not limited to this shape and can have an appropriate shape depending on the specifications, etc.
[0023] As described above, since the tip of the diffusion cover 21 of the light source unit 20 is located between the first shade 41 and the second shade 42, the light emitted from the light source unit 20 is reflected by the first shade 41, the second shade 42, and the surface to which it is attached. Therefore, it is possible to obtain multiple lighting effects from one light source unit 20, including indirect light reflected backward and forward by the first shade 41, indirect light reflected backward by the second shade 42, and indirect light reflected by the surface to which it is attached. Note that the shade 40 may be configured with three or more shades.
[0024] The first shade 41 and the second shade 42 have portions that do not overlap with the appliance body 10 when viewed from the front or rear. In other words, the first shade 41 and the second shade 42 each have a portion that extends radially outward from the side portion 12 of the appliance body 10 when viewed from the front or rear. The first shade 41 has portions that extend above, below, and to the left of the side portion 12 of the appliance body 10 when viewed from the front or rear. The second shade 42 has portions that extend above, below, and to the right of the side portion 12 of the appliance body 10 when viewed from the front or rear.
[0025] The center of the wall portion 11 of the fixture body 10 and the centers of the first shade 41 and the second shade 42 are positioned so as not to overlap when viewed from the front or rear. The center of the light source unit 20 and the centers of the first shade 41 and the second shade 42 are positioned so as not to overlap when viewed from the front or rear. The center of the first shade 41 and the center of the second shade 42 are positioned so as not to overlap when viewed from the front or rear. The center of the first shade 41 is located to the upper left of the center of the wall portion 11 of the fixture body 10. The center of the second shade 42 is located to the lower right of the center of the wall portion 11 of the fixture body 10.
[0026] As described above, the first shade 41 and the second shade 42 have portions that extend radially outward from the side portion 12 of the fixture body 10, and are arranged at positions where the center of the wall portion 11 of the fixture body 10 and the centers of the first shade 41 and the second shade 42 do not overlap when viewed from the front or rear. Therefore, a distinctive lighting effect can be obtained compared to when the center of the wall portion 11 of the fixture body 10 and the centers of the first shade 41 and the second shade 42 overlap when viewed from the front or rear.
[0027] As described above, the center of light source unit 20 and the centers of first shade 41 and second shade 42 are positioned so as not to overlap when viewed from the front or rear, and the center of first shade 41 and the center of second shade 42 are positioned so as not to overlap when viewed from the front or rear. Therefore, even if light source unit 20 is positioned offset from the center of wall portion 11 of fixture body 10, by adjusting the positions of first shade 41 and second shade 42, indirect light leaking from the sides of lighting fixture 1 can be made generally uniform around lighting fixture 1 when viewed from the front.
[0028] The lighting fixture 1 has a plurality of support portions 43 and a connecting portion 44. In this embodiment, the plurality of support portions 43 includes three support portions: a first support portion 43a, a second support portion 43b, and a third support portion 43c. The first support portion 43a and the second support portion 43b support the second shade 42 forward of the fixture body 10. The first support portion 43a and the second support portion 43b are disposed above and below the light source unit 20, respectively. The first support portion 43a and the second support portion 43b protrude forward from the front surface of the wall portion 11 of the fixture body 10 and are inserted into the through-hole 41b of the first shade 41. The first support portion 43a and the second support portion 43b are fixed to the second shade 42 forward of the first shade 41 with fasteners such as screws. The third support portion 43c supports the first shade 41. The third support portion 43c is disposed to the right of the light source unit 20. The third support portion 43c is fixed to the first shade 41 between the fixture body 10 and the second shade 42 by a fastener such as a screw.
[0029] The connecting portion 44 connects the first shade 41 and the second shade 42. The connecting portion 44 is a flat plate-shaped member whose longitudinal direction is the left-right direction when viewed from the front, and is formed into a predetermined shape by bending. One end of the connecting portion 44 is fixed to the third support portion 43c and the first shade 41 with fasteners such as screws. The other end of the connecting portion 44 is fixed to the folded portion 42b of the second shade 42 with fasteners such as screws. The folded portion 42b of the second shade 42 is formed by a portion formed by folding back from the right edge of the second shade to the rear left.
[0030] As described above, the connecting portion 44 mechanically connects the first shade 41 and the second shade 42 using a fastener, so the first shade 41 and the second shade 42 can be connected more firmly than if they were connected by welding alone. In this embodiment, the folded portion 42a is provided with a size equal to the width dimension of the connecting portion 44, but it may be provided with a wider size. For example, the folded portion 42a may be formed over the entire straight portion of the right edge of the second shade 42. By providing the folded portion 42a over such a wide range, structural parts such as the light source unit 20 and the support unit 43 are less visible when the lighting device 1 is viewed from the right side, thereby improving the design of the lighting device 1.
[0031] The appliance main body 10 is attached to the attachment member 30 by fixing the other axial end (rear end) of the side portion 12 to the attachment member 30. The attachment member 30 is configured in a bowl shape that widens in diameter toward the front, and the front edge is formed like a flange so that it extends radially outward. The diameter of the attachment member 30 is configured to be slightly smaller than the diameter of the side portion 12 of the appliance main body 10. The attachment member 30 has a through hole 31 through which a power cord connected to the power supply unit 25 is inserted. The portion of the attachment member 30 other than the rear end is disposed inside the appliance main body 10.
[0032] The instrument body 10 includes a plurality of positioning portions 14 (three in this embodiment) and a plurality of hole portions 15 (two in this embodiment).
[0033] The positioning portions 14 of the appliance body 10 regulate the position of the mounting member 30 in the front-to-rear direction within the appliance body 10. In this embodiment, the positioning portions 14 are formed by cutting and raising them so that they protrude inward from the side portions 12. Three positioning portions 14 are provided on the inner circumferential surfaces of the side portions 12, and are arranged so that they are shifted in phase by 120°. The positioning portions 14 are arranged near the opening 13.
[0034] The hole 15 of the instrument body 10 is a through-hole that penetrates the side portion 12, and a thread groove is formed on the inner circumferential surface of the hole 15. Two holes 15 are provided in each side portion 12 and are arranged so as to be 180° out of phase with each other. The holes 15 are arranged near the opening 13.
[0035] When the instrument body 10 is moved toward the mounting member 30 so as to insert the mounting member 30 into the instrument body 10, the front surface of the leading edge of the mounting member 30 comes into contact with the positioning portion 14. In this way, the positioning portion 14 regulates the front-to-rear position of the mounting member 30 within the instrument body 10. Then, in this state, the screw 16 is threaded into the hole 15, and the tip of the screw 16 presses against the outer surface of the mounting member 30. In this way, the instrument body 10 is fixed to the mounting member 30. Furthermore, the pressure on the mounting member 30 by the screw 16 is released, and the circumferential angle of the side portion 12 relative to the mounting member 30 is changed to any angle, and then the mounting member 30 is pressed again by the screw 16. In this way, the instrument body 10 is configured to be attachable to the mounting member 30 with the circumferential angle of the side portion 12 relative to the mounting member 30 set to any angle.
[0036] As described above, the fixture body 10 is configured so that it can be attached to the mounting member 30 with the circumferential angle of the side portion 12 relative to the mounting member 30 set to any angle. This makes it possible to change the angles at which the first shade 41 and the second shade 42 extend from the fixture body 10. In this way, it is possible to adjust the impression of the lighting fixture 1 when attached to the mounting member 30 and when turned on. The number of positioning portions 14 may be two or less or four or more, and the number of hole portions 15 may be one or three or more.
[0037] The mounting member 30 has multiple (eight in this embodiment) protrusions 32, 32a. Two of the eight protrusions 32 extend rearward from the front edge of the mounting member 30. The protrusions 32, 32a regulate the circumferential position of the instrument body 10 relative to the mounting member 30. The protrusions 32 protrude radially outward from the outer circumferential surface of the front edge of the mounting member 30. The eight protrusions 32, 32a are arranged with a 45° phase shift between them. Two of the protrusions 32a are arranged with a 90° phase shift between them. Then, the pressure applied to the mounting member 30 by the screws 16 is released, and the instrument body 10 is rotated clockwise or counterclockwise relative to the mounting member 30 with the positioning portion 14 regulating the front-rear position of the mounting member 30 within the instrument body 10. As the instrument body 10 is rotated in this manner, the screws 18 come into contact with the protrusions 32a. In this way, the protrusions 32a can restrict the range of circumferential movement of the fixture body 10 relative to the mounting member 30 to 90° or less. Restricting the range of circumferential movement of the fixture body 10 can prevent twisting of the electric wires (not shown) of the external commercial power source housed within the fixture body 10. This reduces the load on the electric wires of the external commercial power source and also reduces the load on the connection between the electric wires and the terminal block 14, making it less likely that problems such as poor connection will occur.
[0038] As described above, the protrusions 32 regulate the circumferential position of the fixture body 10 relative to the mounting member 30 at predetermined angles, facilitating the work of changing the circumferential position of the fixture body 10 relative to the mounting member 30. Note that the number of protrusions 32 may be seven or less or nine or more depending on the specifications, etc.
[0039] Next, a description will be given of the lighting fixture 1 shown in Fig. 8. In the description of the lighting fixture 1 shown in Fig. 8, descriptions of parts that are the same as those of the lighting fixture 1 shown in Figs. 1 to 7 will be omitted as appropriate, and the description will focus on parts that are different from the lighting fixture 1 shown in Figs. 1 to 7.
[0040] 8, the light source unit 20 is disposed at a position offset upward from the center of the wall portion 11 of the fixture body 10. The power supply unit 25 is disposed at a position offset downward from the center of the wall portion 11 of the fixture body 10.
[0041] The tip of the diffusion cover 21 of the light source unit 20 is configured to have a curvature greater than that of a hemisphere, and the length of the diffusion cover 21 in the front-to-rear direction is configured to be relatively short. With this configuration, the width of the lighting device 1 in the front-to-rear direction can be configured to be small.
[0042] The lighting fixture 1 includes a plurality of shades 40 and a plurality of support parts 47.
[0043] In this embodiment, the plurality of shades 40 consists of two, a first shade 45 and a second shade 46, which are arranged at a distance in the front-to-rear direction of the lighting device 1. The first shade 45 and the second shade 46 are arranged adjacent to each other. The first shade 45 and the second shade 46 are configured to be arranged closest to each other among the plurality of shades 40. The first shade 45 and the second shade 46 are arranged closer to each other in the light irradiation direction of the light source unit 20 (forward) than the wall portion 11 of the device body 10. The first shade 45 and the second shade 46 are arranged side by side in the front-to-rear direction so as to be spaced apart from the wall portion 11 of the device body 10. The first shade 45 and the second shade 46 are arranged at a predetermined distance in the front-to-rear direction.
[0044] The first shade 45 is a flat member having a rectangular shape with the vertical direction as the longitudinal direction when viewed from the front. The first shade 45 has a notch 45a. The notch 45a is formed slightly to the left and above the center of the first shade 45. The diffusion cover 21 of the light source unit 20 is inserted into the notch 45a, and the tip of the diffusion cover 21 of the light source unit 20 is located forward of the first shade 41 of the fixture body 10.
[0045] The second shade 46 is configured in a rectangular shape with its longitudinal direction extending vertically in a front view. A portion of the second shade 46 and a portion of the first shade 45 overlap when viewed from the front or rear. The second shade 46 and the light source unit 20 are positioned so that they overlap when viewed from the front or rear. The second shade 46 is located forward of the tip of the diffusion cover 21 of the light source unit 20, and the tip of the diffusion cover 21 of the light source unit 20 is located between the first shade 45 and the second shade 46.
[0046] As described above, the tip of the diffusion cover 21 of the light source unit 20 is located between the first shade 45 and the second shade 46, so that the light emitted from the light source unit 20 is reflected by the first shade 45, the second shade 46, and the surface to which it is attached. Therefore, with one light source unit 20, it is possible to obtain multiple lighting effects by the indirect light reflected backward and forward by the first shade 45, the indirect light reflected backward by the second shade 46, and the indirect light reflected by the surface to which it is attached.
[0047] The first shade 45 and the second shade 46 have portions that do not overlap with the appliance body 10 when viewed from the front or rear. In other words, the first shade 45 and the second shade 46 each have a portion that extends radially outward from the side portion 12 of the appliance body 10 when viewed from the front or rear. The first shade 45 and the second shade 46 each have portions that extend above, below, leftward, and rightward beyond the side portion 12 of the appliance body 10 when viewed from the front or rear.
[0048] The center of the wall portion 11 of the fixture body 10 and the centers of the first shade 45 and the second shade 46 are positioned so as not to overlap when viewed from the front or rear. The center of the light source unit 20 and the centers of the first shade 45 and the second shade 46 are positioned so as not to overlap when viewed from the front or rear. The center of the first shade 45 and the center of the second shade 46 are positioned so as not to overlap when viewed from the front or rear. The center of the first shade 45 is located to the lower right of the center of the wall portion 11 of the fixture body 10. The center of the second shade 46 is located to the upper left of the center of the wall portion 11 of the fixture body 10.
[0049] As described above, the first shade 45 and the second shade 46 have portions that extend radially outward from the side portion 12 of the fixture body 10, and are arranged at positions where the center of the wall portion 11 of the fixture body 10 and the centers of the first shade 45 and the second shade 46 do not overlap when viewed from the front or rear. Therefore, a distinctive lighting effect can be obtained compared to when the center of the wall portion 11 of the fixture body 10 and the centers of the first shade 45 and the second shade 46 overlap when viewed from the front or rear.
[0050] As described above, the center of light source unit 20 and the centers of first shade 45 and second shade 46 are positioned so as not to overlap when viewed from the front or rear, and the center of first shade 45 and the center of second shade 46 are positioned so as not to overlap when viewed from the front or rear. Therefore, even if light source unit 20 is positioned offset from the center of wall portion 11 of fixture body 10, by adjusting the positions of the center of first shade 45 and second shade 46, indirect light leaking from the sides of lighting fixture 1 can be made generally uniform around lighting fixture 1 when viewed from the front.
[0051] The second shade 46 has a notch 46a. The notch 46a is a through-hole in the shape of a letter or a figure, and is formed in the lower right of the second shade 46. The notch 46a is formed in a position that overlaps with the first shade 45 when viewed from the front or rear. In this embodiment, the front side of the first shade 45 is matte-finished by a method such as matte painting. By providing the front side of the first shade 45 in this manner, the glare of reflected light peeking through the cutout portion 46a is reduced, thereby improving the visibility of the letters and figures in the cutout portion 46a.
[0052] As described above, the notch 46a is formed at a position overlapping with the first shade 45 when viewed from the front or rear, so that the light emitted from the light source unit 20 leaks out in front of the second shade 46 through the notch 46a, thereby achieving a distinctive lighting effect. The shape of the notch 46a can be determined appropriately depending on the specifications, application, etc. The front sides of the first shade 45 and the second shade 46 may be colored in different colors. With this configuration, the cutout portion 46a overlaps with the first shade 45 when viewed from the front, and therefore, when the light source unit 20 is not turned on, the contrast between the colors of the first shade 45 and the second shade 46 can improve the visibility of the cutout portion 46a.
[0053] There are three support parts 47. The support parts support the first shade 45 and the second shade 46 forward of the fixture main body 10. The three support parts 47 are respectively arranged around the light source unit 20. The support part 47 protrudes forward from the front surface of the wall part 11 of the fixture main body 10 and is fixed to the first shade 45 by fasteners such as screws, and also protrudes forward from the first shade 45 and is fixed to the second shade 46 by fasteners such as screws. [Explanation of symbols]
[0054] 1. Lighting equipment 10. Instrument body 11 Wall 12 Side 13 Opening 14 Positioning part 15 Hole 16 bis 20 Light source section 21 Diffusion Cover 22 LED elements 25 Power supply section 30 Mounting material 31 Through hole 32 Convex part 40 Saed 41 First Sade 41a Notch 41b Through hole 42 Second Sade 42a Folded part 43 Support part 44 Connecting part 45 First Sade 45a Notch 46 Second Shade 46a Notch 47 Support Department
Claims
1. A lighting fixture comprising: a fixture body having a wall portion; a light source unit having a light source formed of an LED element; and a power supply unit that supplies power to the light source unit to light up the light source, The light source unit is provided on one side surface of the wall portion of the fixture body, The power supply unit is provided on the other side surface of the wall portion of the fixture body, the light source unit and the power supply unit are disposed at positions where they do not overlap when viewed from one side of the wall unit, The light source unit is disposed at a position offset from the center of the wall of the fixture body.
2. the instrument body has a cylindrical side portion having one axial end connected to the wall portion, and the other axial end of the side portion is fixed to the mounting member, thereby being attached to the mounting member; The lighting fixture according to claim 1 , wherein the fixture body is configured to be attachable to the mounting member such that the angle of the side portion relative to the mounting member in the circumferential direction is set to any angle.
3. the light source unit has a diffusion cover that covers the light source, The fixture body includes a plurality of shades on a side of the wall portion in a direction in which light is emitted from the light source portion, The plurality of shades are arranged side by side so as to be spaced apart from the wall portion, The lighting fixture according to claim 2 , wherein the tip of the diffusion cover is located between two adjacent shades among the plurality of shades.
4. The shade has a portion extending radially outward from the side portion, The center of the wall portion and the center of the shade are disposed at positions where they do not overlap when viewed from one side of the wall portion.
4. A lighting fixture according to claim 3.
Citation Information
Patent Citations
Lighting device
JP2020161421A