JP7418166B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a lighting fixture that includes a fixture body that is attached to an attached part with a fixture, and a light source unit that is attached to the fixture body.

2. Description of the Related Art Conventionally, lighting fixtures are known that include a fixture body that is attached to an attached part with a fixture, and a light source unit that is attached to the fixture body. Patent Document 1 discloses a lighting fixture in which a box-shaped storage part with one side open is attached to the ceiling with a hanging bolt, and a body including a reflecting part and an LED lamp is stored in the storage part. There is.

Japanese Patent Application Publication No. 2004-186104

However, the hanging bolt of the lighting fixture disclosed in Patent Document 1 is provided at a position vertically facing the reflecting portion of the vessel body. Therefore, the height of the storage section needs to be higher than necessary so that the hanging bolts and the container body do not interfere with each other. Therefore, the lighting equipment becomes larger.

The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to obtain a small-sized lighting fixture.

A lighting device according to the present invention includes a main surface that is attached to an attached part by a fixture, and a main surface that is attached to the main surface and has a plurality of side surfaces that stand up from the main surface. a light source unit housed in between; the light source unit includes a first light source section that irradiates light; and a light source unit that is disposed on a side opposite to the attached part side from the first light source section and irradiates light. It has a second light source part and a holding member provided in a step shape so that the first light source part and the second light source part are separated from each other in the width direction, which is a direction perpendicular to the irradiation direction.

According to the present invention, the first light source section and the second light source section, which are located at different positions in the height direction, are spaced apart in the width direction. Therefore, the first light source section and the second light source section are not adjacent to each other, and a space is formed to the side of the first light source section and above the second light source section. By arranging a fixture such as a hanging bolt in the space, the height of the appliance main body can be reduced without interference between the hanging bolt and the light source unit. Therefore, a compact lighting fixture can be realized.

1 is a perspective view showing the appearance of a lighting fixture according to Embodiment 1. FIG. 1 is an exploded perspective view showing the configuration of a lighting fixture according to Embodiment 1. FIG. 1 is an exploded perspective view showing the configuration of a light source unit of a lighting fixture according to Embodiment 1. FIG. 1 is an exploded perspective view showing the configuration of a light source unit of a lighting fixture according to Embodiment 1. FIG. 1 is a schematic cross-sectional view schematically showing the configuration of a lighting fixture according to Embodiment 1. FIG. 6 is a partially enlarged view of the lighting fixture of FIG. 5. FIG. FIG. 2 is an exploded perspective view showing a light guide plate and a reflective sheet of the lighting fixture according to Embodiment 1. FIG. 1 is an exploded side view showing a lighting fixture according to Embodiment 1. FIG. FIG. 3 is a top view showing the light source unit according to the first embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a lighting fixture according to the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments, and can be variously modified without departing from the spirit of the present invention. Further, the present invention includes all combinations of configurations that can be combined among the configurations shown in the following embodiments. Furthermore, in each figure, the same reference numerals are the same or equivalent, and this is common throughout the entire specification. In addition, in the entire specification, the direction from the floor surface to the ceiling will be referred to as the "upward direction", and the ceiling side will be referred to as the "upper side". Similarly, the vertical direction from the ceiling to the floor will be referred to as the "downward direction," and the floor side will be referred to as the "lower side." Furthermore, in each component, the opening side provided in the center of the lighting fixture 1 will be referred to as the "inside", and the outside side of the lighting fixture 1 will be referred to as the "outside". In the following embodiments, the lighting fixture 1 is assumed to be rectangular box-shaped, and the direction parallel to the long side is called the "longitudinal direction", and the direction parallel to the short side is called the "short direction". . However, this is to make the explanation easier to understand, and the lighting fixture 1 may have a square box shape. Note that in each drawing, the relative dimensional relationship or shape of each component may differ from the actual one.

Embodiment 1.
FIG. 1 is a perspective view showing the appearance of a lighting fixture 1 according to the first embodiment. Moreover, FIG. 2 is an exploded perspective view showing the configuration of the lighting fixture 1 according to the first embodiment. As shown in FIGS. 1 and 2, the lighting fixture 1 includes a fixture body 50 and a light source unit 10. The light source unit 10 includes a light guide plate 17 and a diffusion cover 13, which will be described later.

The lighting fixture 1 according to the first embodiment includes a first optical member from which blue light, which is the first light, is emitted from the lower surface, which is the exit surface, of the light guide plate 17 . The lighting fixture 1 also includes a second optical member that emits white light, which is second light, from the light emitting surface of the diffusion cover 13 that is arranged in a direction that intersects the light emitting surface of the light guide plate 17 . The light emitting surface of the diffusion cover 13 is provided in three directions so as to form a U-shape. Therefore, the light emitting surface of the diffusion cover 13 emits white light from the three directions, and blue light is emitted from the entire lower surface of the light guide plate 17. The intensity of the blue light is configured to be lower than the intensity of the white light. With this configuration, the lighting fixture 1 according to the first embodiment produces a visual effect with a sense of depth, as if looking at the blue sky through a window frame. In addition, by interposing a light shielding portion between the output surface of the light guide plate 17 of the first optical member and the diffusion cover 13, light is prevented from entering the diffusion cover 13 from the output surface of the light guide plate 17. . This suppresses deterioration of the above-mentioned visual effect.

Hereinafter, the configuration of the lighting fixture 1 will be explained using the drawings.

The lighting fixture 1 is a ceiling-embedded lighting fixture. The lighting fixture 1 is installed so as to be embedded in a embedding hole H provided in a ceiling C shown in FIG. In the first embodiment, a case where the attached part is the ceiling C will be exemplified.

As shown in FIG. 1, the fixture main body 50 of the lighting fixture 1 is formed in a rectangular box shape, and is open at the bottom. The light source unit 10 is arranged inside the opening of the instrument body 50. The instrument main body 50 has a main surface 51 and four side surfaces 52, as shown in FIG. The main surface 51 is formed into a rectangular plate shape. Further, each of the side surfaces 52 is formed into an elongated rectangular plate shape. Each of the side surfaces 52 is provided so as to extend downward from each of the four sides of the main surface 51 in a direction perpendicular to the main surface 51.

Moreover, V-spring fittings 53 are attached to the inner surfaces of two opposing side surfaces 52 among the four side surfaces 52 of the instrument main body 50. The V-spring fitting 53 hooks and holds a V-spring 12, which will be described later, provided on the light source unit 10.

Further, as shown in FIG. 2, bolt holes 51-1 are formed at the four corners of the main surface 51. Furthermore, a hanging bolt B is suspended from an embedded hole H in the ceiling C. The instrument body 50 is fixed by inserting the hanging bolt B into the bolt hole 51-1 and then tightening the hanging bolt B with a nut 61.

Further, the main surface 51 is provided with a wire hole 51-2 and a terminal block 54. The terminal block 54 has a power terminal block and a signal line terminal block. In FIG. 2, illustration of a power terminal block and a signal line terminal block is omitted. Electric wires and signal lines are drawn out from the electric wire hole 51-2. The electric wire pulled out from the electric wire hole 51-2 is electrically connected to the power terminal block of the terminal block 54. Further, the signal line pulled out from the wire hole 51-2 is electrically connected to the signal line terminal block of the terminal block 54.

As shown in FIG. 2, the light source unit 10 includes an upper cover 27, a flange portion 11, a V spring 12, a light guide plate 17, and a diffusion cover 13. The upper cover 27 is formed into a truncated quadrangular pyramid with an open bottom end. Each of the four side surfaces of the upper cover 27 is formed into a trapezoidal shape, and the length of the upper side is shorter than the length of the lower side. The flange portion 11 is formed into a rectangular frame shape in plan view. As shown in FIG. 2, the flange portion 11 is arranged to protrude horizontally outward from the lower end of the upper cover 27. The V spring 12 is attached to the upper surface of the flange portion 11. A total of four V springs 12 are provided in accordance with the positions of the V spring fittings 53 of the instrument main body 50. The V spring 12 is a wire spring formed by bending a metal wire into a V shape. The light source unit 10 is suspended and attached to the instrument body 50 by the V spring 12 engaging with the V spring fitting 53. Note that when the lighting fixture 1 is attached to the embedded hole H in the ceiling C, the flange portion 11 covers the edge of the embedded hole H. Therefore, when the lighting fixture 1 is attached to the embedded hole H in the ceiling C, the embedded hole H is not visible to the user.

3 and 4 are exploded perspective views showing the configuration of the light source unit 10 of the lighting fixture 1 according to the first embodiment. The light source unit 10 has the components shown in FIG. 3 and the components shown in FIG. 4. 3 shows the components provided in the lower part of the light source unit 10, and FIG. 4 shows the components provided in the upper part of the light source unit 10.

Among the components of the light source unit 10, the components shown in FIG. 3 will be described first. As shown in FIG. 3, the light source unit 10 includes a flange portion 11, a V spring 12, a packing 21, a diffusion cover 13, a packing 22, a white LED (Light Emitting Diode) module 14, and a first module holding member 15. Equipped with.

As described above, the flange portion 11 is formed in a rectangular frame shape. The flange portion 11 is made of metal.

A total of four V springs 12 are provided on the upper surface of the flange portion 11.

The first module holding member 15 is formed into a rectangular frame shape in plan view. The first module holding member 15 is constructed by combining four members. Each of the four members has an L-shaped cross section, as shown in FIG. 6, which will be described later. Further, as shown in FIG. 3, a mounting flange 15-1 is provided at the lower end of each of the four members of the first module holding member 15. The mounting flange 15-1 is attached to the flange portion 11 with screws 62, as shown in FIG. 6, which will be described later.

The white LED module 14 is formed in a U-shape when viewed from above. That is, the white LED module 14 is configured to form three sides of a rectangle. The white LED module 14 includes three plate-shaped substrates and a white LED provided on each of the three substrates. The angle between adjacent substrates is 90°. In this way, the white LED module 14 is an optical module having a light source. The light source is not limited to LEDs, and other light emitting elements or light emitting devices may be used. The white LED module 14 emits white light inward from white LEDs provided on each of the three substrates. In this way, the white LED module 14 emits white light from three directions forming a U-shape. The white LED module 14 is disposed inside the first module holding member 15 and is held by the first module holding member 15.

The packing 22 is disposed between the lower surface, which is the output surface, of the light guide plate 17 shown in FIG. 4 and the upper end surface 13-3 of the diffusion cover 13. The packing 22 functions as a light shielding portion between the output surface of the light guide plate 17 and the upper end surface 13-3 of the diffusion cover 13. The packing 22 blocks light from entering the upper end surface 13-3 of the diffusion cover 13 from the output surface of the light guide plate 17, which is illuminated in blue by the light emitted from the blue LED module 18, which will be described later. Further, the packing 22 blocks the white light emitted from the white LED module 14 from entering the output surface of the light guide plate 17 from the upper end surface 13-3 of the diffusion cover 13.

The thickness of the packing 22 is desirably thinner from the viewpoint of preventing the user from feeling the boundary between the light emitting surface of the light guide plate 17 and the light emitting surface 13-1 of the diffusion cover 13. On the other hand, the packing 22 also functions as a buffer material when the lighting fixture 1 is shaken due to an earthquake or the like. Therefore, it is preferable that the packing 22 has a thickness that alleviates and suppresses vibrations caused by shaking such as an earthquake. Therefore, the packing 22 should be made of an elastic material that has a thickness that makes the boundary between the light emitting surface of the light guide plate 17 and the light emitting surface 13-1 of the diffusion cover 13 inconspicuous and that can suppress vibrations caused by shaking such as an earthquake. is desirable.

The diffusion cover 13 is formed into a rectangular frame shape when viewed from above. The diffusion cover 13 is made of, for example, a milky white resin. The diffusion cover 13 is formed into a truncated quadrangular pyramid with an open top and bottom. Therefore, each of the four side surfaces of the diffusion cover 13 is inclined at a predetermined angle with respect to the vertical direction. Each of the four side surfaces of the diffusion cover 13 is composed of a trapezoidal diffusion plate, and the length of the upper side is shorter than the length of the lower side. Further, each of the four side surfaces of the diffusion cover 13 is inclined, so that the upper side is located inside the lower side when viewed from above. Thereby, the internal space of the diffusion cover 13 becomes larger in a tapered manner toward the bottom. As described above, the diffusion cover 13 is formed by combining four trapezoidal diffusion plates. However, the formation method is not limited to this, and the diffusion cover 13 may be formed by integral molding.

Of the four side surfaces of the diffusion cover 13, three are light-emitting surfaces 13-1 and the other surface is a non-light-emitting surface 13-2. The three light emitting surfaces 13-1 are arranged in a U-shape to match the U-shaped white LED module 14.

Here, in each of the four side surfaces of the diffusion cover 13, the inner surface facing the internal space of the diffusion cover 13 will be referred to as the front surface, and the outer surface will be referred to as the back surface.

The diffusion cover 13 is arranged inside the white LED module 14. Therefore, the white LED module 14 is arranged on the back side of each of the light emitting surfaces 13-1 of the diffusion cover 13. The white light emitted from the white LED module 14 enters from the back surface of the light emitting surface 13-1 of the diffusion cover 13, passes through the light emitting surface 13-1, and is emitted from the front surface of the light emitting surface 13-1. . Since each of the light emitting surfaces 13-1 is inclined, the white light emitted from the front surfaces of the three light emitting surfaces 13-1 irradiates diagonally downward.

A light-shielding sheet is attached to the back surface of the non-light-emitting surface 13-2 of the diffusion cover 13 to prevent light from leaking from the non-light-emitting surface 13-2. The light shielding sheet is omitted from illustration.

In this way, the diffusion cover 13 has a configuration that combines three light emitting surfaces 13-1 that emit white light and one non-light emitting surface 13-2 that does not emit light. Therefore, the light emitted from the diffusion cover 13 comes from three directions, so it looks like light from outside is shining through the sunlit window frame or through the shaded window frame. It is possible to create a visual effect with a sense of depth.

Further, the diffusion cover 13 has an upper end surface 13-3, which is a first end surface, and a lower end surface 13-4, which is a second end surface. The upper end surface 13-3 and the lower end surface 13-4 are parallel to the upper surface of the clamp section.

Note that the diffusion cover 13 and the white LED module 14 constitute a second optical member that emits white light, which is the second light, from the light emitting surface 13-1.

The lighting fixture 1 can be used as a lighting fixture that illuminates the diagonally downward direction of the light emitting surface 13-1 with white light emitted from the light emitting surface 13-1. Note that the blue light emitted from the light guide plate 17, which will be described later, is used for illumination to create a visual effect similar to seeing a blue sky, and when used for illumination, the luminous flux is insufficient. On the other hand, the light emitted from the light emitting surface 13-1 satisfies the luminous flux when used for illumination. In this way, the light intensity of the white light emitted from the light emitting surface 13-1 is different from the light intensity of the blue light emitted from the light emitting surface of the light guide plate 17, and the light intensity of the white light is higher than that of the blue light. Stronger than light intensity.

Note that the white light emitted from the light emitting surface 13-1 does not have to have a single color temperature. That is, specifically, the white LED module 14 may include two types of white LEDs with different color temperatures. In this way, the white LED module 14 may include only one type of white LED, or may include two types of white LEDs, a daytime white LED and a warm white LED. You may prepare it. When the white LED module 14 includes two types of white LEDs, by changing the dimming rate of the two types of white LEDs, white light with various color temperatures and various luminous fluxes is emitted from the light emitting surface 13-1. can be emitted. Further, depending on the time, the white LED for daytime color and the white LED for warm color may be switched and used. Specifically, for example, daytime white LEDs may be used during daytime hours from 8:00 a.m. to 5:00 p.m., and warm white LEDs may be used at other times. good. Note that these time slots are just examples, and are not limited to these, and may be set as appropriate.

Diffusion cover 13 is placed on flange portion 11 . The lower end surface 13-4 of the diffusion cover 13 is held by the flange portion 11 via a packing 21, which is a second packing. If the diffusion cover 13 is placed on the metal flange portion 11 and is subjected to vibrations such as an earthquake, the flange portion 11 or the diffusion cover 13 will vibrate and collide with each other. As a result, the diffusion cover 13 may break. Therefore, the packing 21 is sandwiched between the flange portion 11 and the lower end surface 13-4 of the diffusion cover 13. The packing 21 prevents the flange portion 11 or the diffusion cover 13 from directly colliding with each other when they vibrate. By sandwiching the packing 21, the force applied from the flange portion 11 to the diffusion cover 13 is relaxed due to the elasticity of the packing 21, and it is possible to prevent the diffusion cover 13 from cracking. Further, by providing the packing 21 between the flange portion 11 and the diffusion cover 13, it is possible to give the impression of a window frame. In particular, when the packing 21 has a white color tone, the impression as a window frame can be strengthened. Furthermore, the packing 21 prevents white light from leaking from the gap between the diffusion cover 13 and the flange portion 11.

Note that the light distribution of the white LED used in the white LED module 14 is of a wide-angle type. By using a wide-angle type LED for the white LED module 14, it is possible to make it difficult to change the luminous intensity of the light emitted from the diffusion cover 13 even if the inclination angle of the diffusion cover 13 is changed. Therefore, the same type of white LED module can be used for the diffusion covers 13 having different inclination angles.

Next, among the components of the light source unit 10, the components shown in FIG. 4 will be described. As shown in FIG. 4, the light source unit 10 further includes a lower guide plate 16, a light guide plate 17, a blue LED module 18, an upper guide plate 19, and an insulating plate 23. The light source unit 10 also includes a second module holding member 24, a fixing member 25, a light guide plate cover 26, an upper cover 27, a power supply device 31, and a light control unit 32.

The lower guide plate 16 is placed on the first module holding member 15 shown in FIG. The lower guide plate 16 is composed of two rod-shaped members. The lower guide plate 16 is arranged parallel to two opposing end surfaces 17-1 extending in the longitudinal direction of the light guide plate 17. Projections 16-3 are provided at both ends of the two rod-shaped members that constitute the lower guide plate 16. The protrusion 16-3 extends vertically upward. The protrusion 16-3 prevents the light guide plate 17 from moving in the longitudinal direction.

The upper guide plate 19 is placed on the light guide plate 17. The upper guide plate 19 is composed of two rod-shaped members. The upper guide plate 19 is arranged parallel to two opposing end surfaces 17-1 extending in the longitudinal direction of the light guide plate 17.

The light guide plate 17 is formed into a plate shape. The light guide plate 17 is formed into a rectangle in plan view. Therefore, the light guide plate 17 has an upper surface, a lower surface, two opposing end surfaces 17-1 extending in the longitudinal direction, and two opposing end surfaces 17-2 extending in the lateral direction. The light guide plate 17 is arranged inside the opening of the instrument main body 50, as described above. Each of the longitudinally extending end surfaces 17-1 of the light guide plate 17 is held between the lower guide plate 16 and the upper guide plate 19 from above and below. The light guide plate 17 transmits the light emitted from the blue LED module 18 and emits blue light from the lower surface, which is an output surface. The light guide plate 17 also includes a scatterer, which is a particle that scatters light, inside. The light guide plate 17 is made of acrylic resin. The light guide plate 17 contains, for example, silica as a scatterer.

The blue LED module 18 has two plate-shaped substrates. The blue LED module 18 is arranged parallel to two opposing end surfaces 17-1 extending in the longitudinal direction of the light guide plate 17. Moreover, the blue LED module 18 includes a plurality of LEDs 81 arranged on these boards. The plurality of LEDs 81 include, for example, a blue LED, a white LED, and a green LED. The blue LED, white LED, and green LED provided in the blue LED module 18 are dimmed by a power supply device 31 and a dimming unit 32 . In this way, by controlling each LED 81 by the power supply device 31 and the light control unit 32, the light emitted by the blue LED module 18 can be made blue as a whole, and the tone of the blue light can be changed. . Thereby, the lighting fixture 1 can produce various visual effects imitating the blue sky. The power supply device 31 and the light control unit 32 may be provided independently for each color of the LED 81. Alternatively, the white LED and the green LED may be dimmed together using one set of the power supply device 31 and the dimming unit 32. In that case, the number of power supply devices 31 and dimming units 32 can be reduced. Further, the color tone of the blue light may be changed according to the time. Specifically, for example, the light may be dimmed so that it is bright blue during the daytime hours from 8:00 a.m. to 5:00 p.m., and dark blue at other times. . In this way, the blue LED module 18 is an optical module having a light source. The light source is not limited to LEDs, and other light emitting elements or light emitting devices may be used.

The two substrates of the blue LED module 18 are arranged to face the two end surfaces 17-1 extending in the longitudinal direction of the light guide plate 17, with a gap 33 shown in FIG. 6, which will be described later, in between. . The light emitted from the blue LED module 18 is incident on the end surface 17-1 of the light guide plate 17, and travels inside the light guide plate 17 while being totally reflected by the upper and lower surfaces of the light guide plate 17. A part of the light traveling inside the light guide plate 17 is scattered when it hits a scatterer inside the light guide plate 17. Blue light, which is the first light, is emitted from the lower surface, which is the exit surface, of the light guide plate 17 .

The upper surface of the light guide plate 17 is smooth for total reflection. It is desirable that the upper surface of the light guide plate 17 has a mirror finish. If the upper surface of the light guide plate 17 is scratched during the assembly work of the lighting fixture 1, total reflection is less likely to occur at the scratched location. As a result, a portion of the bottom surface corresponding to the scratched portion of the top surface will appear whitish and shiny, and there is a risk that it will not be possible to create a blue sky. Therefore, in order to prevent the top surface of the light guide plate 17 from being damaged, the top surface of the light guide plate 17 may be covered with a reflective sheet 28, as shown in FIG. FIG. 7 is an exploded perspective view showing the light guide plate 17 and reflective sheet 28 of the lighting fixture 1 according to the first embodiment. Here, when covering the top surface of the light guide plate 17 with the reflective sheet 28, if the top surface of the light guide plate 17 and the reflective sheet 28 are pasted without leaving a gap, total reflection will be less likely to occur on the top surface of the light guide plate 17. . In order to ensure total reflection of the light on the upper surface of the light guide plate 17, an air layer is required between the light guide plate 17 and the reflective sheet 28. In order to form an air layer, the reflective surface of the reflective sheet 28 facing the upper surface of the light guide plate 17 is matted. Matte processing is a process that forms fine irregularities in the shape of frosted glass. By matting the reflective surface of the reflective sheet 28, an air layer can be provided between the light guide plate 17 and the reflective sheet 28. Further, as shown in FIG. 7, an adhesive portion 28-1 may be provided at the edge of the reflective sheet 28 for the purpose of fixing the reflective sheet 28 to the light guide plate 17.

The blue LED module 18 is positioned by the second module holding member 24 and attached to the second module holding member 24 by the fixing member 25 . The second module holding member 24 is formed of a sheet metal having an L-shaped cross section. The second module holding member 24 is attached to the upper surface of the first module holding member 15 shown in FIG. 3 with screws 63, as shown in FIG. 6, which will be described later. The blue LED module 18 may be a double-sided substrate. In that case, wiring is also provided on the surface of the blue LED module 18 on the second module holding member 24 side. Therefore, the blue LED module 18 is attached to the second module holding member 24 via the insulating plate 23. Therefore, the insulating plate 23 does not necessarily need to be provided, and may be provided as necessary.

Note that the substrate of the blue LED module 18 thermally expands and contracts due to the heat generated from the LED 81. Therefore, if the blue LED module 18 is completely fixed to the second module holding member 24, the substrate of the blue LED module 18 may be warped or distorted due to thermal expansion and contraction. Therefore, a plurality of through holes 18-1 and 18-2 are provided in the upper part of the substrate of the blue LED module 18. The through hole 18-1 provided in the center of the substrate has a circular shape, and the other through holes 18-2 are all formed in an oval shape extending in the longitudinal direction. Furthermore, a cylindrical protrusion 25-1 is provided on the surface of the fixing member 25 on the blue LED module 18 side. The protrusions 25-1 are inserted into the through holes 18-1 and 18-2, respectively. The fixing member 25 is screwed to the second module holding member 24 with the projections 25-1 inserted into the through holes 18-1 and 18-2. Since the through hole 18-2 is formed in an oval shape, the protrusion 25-1 is inserted into the through hole 18-2 with some play. Therefore, when the substrate of the blue LED module 18 thermally expands and contracts, the protrusion 25-1 can move in the longitudinal direction within the oval through hole 18-2. Thereby, it is possible to prevent the substrate of the blue LED module 18 from being warped or distorted due to thermal expansion and contraction.

Moreover, as shown in FIG. 4, each LED 81 of the blue LED module 18 is desirably arranged in a region below the substrate of the blue LED module 18 when viewed from the side. When each LED 81 is arranged in this way, a large heat dissipation space can be secured in the upper part of each LED 81 when viewed from the side. The second module holding member 24 not only holds the substrate of the blue LED module 18 but also functions as a heat sink that releases heat from each LED 81 to the outside.

The blue LED module 18 and the light guide plate 17 constitute a first optical member that emits blue light, which is the first light, from the output surface.

The light guide plate cover 26 is placed on the upper guide plate 19. The light guide plate cover 26 covers the light guide plate 17 from above and protects the light guide plate 17.

The upper cover 27 includes the flange portion 11, V spring 12, diffusion cover 13, white LED module 14, first module holding member 15, lower guide plate 16, light guide plate 17, and blue LED module shown in FIGS. 3 and 4. The LED module 18, the upper guide plate 19, the packings 21 and 22, the insulating plate 23, the second module holding member 24, the fixing member 25, and the light guide plate cover 26 are covered and protected. On the upper surface of the upper cover 27, as shown in FIG. 4, a power supply device 31 and a light control unit 32 are placed.

The power supply device 31 supplies power to each of the blue LED module 18 and the white LED module 14. The light control unit 32 controls the light of each LED provided in each of the blue LED module 18 and the white LED module 14 . The power supply device 31 and the light control unit 32 may be provided independently for each color of each LED. Specifically, for example, three power supplies 31 and three dimming units 32 are allocated to each of the blue LED, white LED, and green LED of the blue LED module 18. Furthermore, two power supply devices 31 and two dimming units 32 are assigned to each of the daylight color LED and the warm color LED of the white LED module 14 . In that case, the number of power supplies 31 and the number of dimming units 32 are each five. Alternatively, one power supply device 31 and one dimming unit 32 may be assigned to each of the white LED and green LED of the blue LED module 18, and the white LED and green LED may be dimmed together. . In that case, the number of power supplies 31 and the number of dimming units 32 are each four. The power supply device 31 and the light control unit 32 are electrically connected, for example, by wiring such as a crossover wiring.

Next, the configuration of the lighting fixture 1 according to the first embodiment will be described in more detail using FIGS. 5 and 6. FIG. 5 is a schematic cross-sectional view schematically showing the configuration of the lighting fixture 1 according to the first embodiment. Moreover, FIG. 6 is a partially enlarged view of the lighting fixture 1 of FIG. 5. 5 and 6 schematically show a side view of a cross section of the lighting fixture 1, which is assumed to be cut along a plane parallel to one side surface in the transverse direction at the central portion in the longitudinal direction. .

As shown in FIGS. 5 and 6, the instrument main body 50 has a box shape with an open bottom end, and the light source unit 10 is disposed inside the opening of the instrument main body 50. A V spring 12 is provided on the upper surface of the flange portion 11 of the light source unit 10. The V spring 12 is held in a hooked state by a V spring fitting 53 provided on the instrument main body 50. Thereby, the light source unit 10 and the instrument main body 50 are engaged, and the light source unit 10 is held by the instrument main body 50.

The first module holding member 15 of the light source unit 10 has an L-shaped cross section, as shown in FIG. That is, the first module holding member 15 has an upper surface arranged horizontally and a side surface arranged perpendicularly to the upper surface. The side surface extends vertically downward with respect to the top surface. Further, the first module holding member 15 is provided with a mounting flange 15-1 at the lower end. The mounting flange 15-1 extends horizontally. The mounting flange 15-1 extends outward from the side surface of the first module holding member 15. The first module holding member 15 is fixed to the flange portion 11 by screws 62 inserted into screw holes of the mounting flange 15-1 provided at the lower end. Furthermore, the upper end of the first module holding member 15 is provided with a projection 15-2 that projects upward. The protrusion 15-2 is provided for positioning the lower guide plate 16.

The white LED module 14 is placed on the inner surface of the side surface of the first module holding member 15, and is adhered with silicone adhesive or the like along the guide 15-3 provided on the first module holding member 15. There is.

The diffusion cover 13 and the light guide plate 17 are arranged to intersect with each other. A lower end surface 13-4 of the diffusion cover 13 is held by the flange portion 11 via a packing 21. The upper end surface 13-3 of the diffusion cover 13 is in contact with the lower surface 17-3, which is the output surface of the light guide plate 17, via the packing 22. As described above, the packing 21 functions as a protective material that cushions the impact from the flange portion 11 on the diffusion cover 13 when shaking such as an earthquake occurs. The upper end surface 13-3 and the lower end surface 13-4 of the diffusion cover 13 are parallel to the upper surface of the flange portion 11 and the lower surface 17-3 of the light guide plate 17. On the other hand, the light emitting surface 13-1 of the diffusion cover 13 is inclined at a preset angle with respect to the upper surface of the flange portion 11 and the lower surface 17-3 of the light guide plate 17.

On the back side of the light emitting surface 13-1 of the diffusion cover 13, a white LED module 14 is arranged. White light emitted from the LED of the white LED module 14 enters from the back surface of the diffusion cover 13 and is emitted from the front surface of the light emitting surface 13-1 of the diffusion cover 13. Since the light emitting surface 13-1 is inclined, the white light emitted from the front surface of the light emitting surface 13-1 illuminates diagonally downward.

The packing 22 is arranged between the lower surface 17-3 of the light guide plate 17 and the upper end surface 13-3 of the diffusion cover 13. As described above, the packing 22 functions as a light shielding portion between the lower surface 17-3 of the light guide plate 17 and the upper end surface 13-3 of the diffusion cover 13. The packing 22 blocks the light emitted from the blue LED module 18 from entering the end surface 13-3 of the diffusion cover 13 from the lower surface 17-3, which is the exit surface of the light guide plate 17. Further, the packing 22 blocks the white light emitted from the white LED module 14 from entering the lower surface 17-3, which is the output surface of the light guide plate 17, from the end surface 13-3 of the diffusion cover 13.

The lower guide plate 16 is placed on the first module holding member 15. The upper guide plate 19 is placed on the light guide plate 17. The light guide plate 17 is held between the lower guide plate 16 and the upper guide plate 19 from above and below.

As shown in FIG. 6, the lower guide plate 16 is provided with a protrusion 16-1 that protrudes downward. The lower guide plate 16 is positioned by fitting the protrusion 16-1 between the protrusion 15-2 of the first module holding member 15 and the blue LED module 18. The protrusion 16-1 has a larger cross-sectional area than other parts of the lower guide plate 16. Therefore, the area where the protrusion 16-1 and the blue LED module 18 come into contact can be increased. Further, as shown in FIG. 6, the upper guide plate 19 is provided with a protrusion 19-1 that protrudes upward. The protrusion 19-1 has a larger cross-sectional area than other parts of the upper guide plate 19. Therefore, the area where the protrusion 19-1 and the blue LED module 18 come into contact can be increased. Therefore, since the protrusions 16-1 and 19-1 hold the blue LED module 18 on their surfaces, the blue LED module 18 can be prevented from wobbling and tilting, and the blue LED module 18 is stabilized.

The blue LED module 18 is positioned and attached to the second module holding member 24 with an insulating plate 23 interposed therebetween by a fixing member 25 . The second module holding member 24 is formed of a sheet metal having an L-shaped cross section. The second module holding member 24 is attached to the upper surface of the first module holding member 15 with screws 63, as shown in FIG. Note that the present invention is not limited to this case, and one of the first module holding members 15 and the second module holding member 24 may be formed integrally.

As shown in FIG. 6, a gap 33 is provided between the end surface 17-1 of the light guide plate 17 and the blue LED module 18. It is desirable that the blue LED module 18 be placed as close to the light guide plate 17 as possible. However, the light guide plate 17 thermally expands and contracts due to the heat of the light emitted from the blue LED module 18 and the like. Therefore, by providing the void 33, it is possible to cope with changes in the size of the light guide plate 17 due to thermal expansion and contraction. Further, both ends of the light guide plate 17 are not completely fixed, but are held by being sandwiched between the lower guide plate 16 and the upper guide plate 19 from above and below. The reason for this will be explained. If both ends of the light guide plate 17 are fixed, there is a possibility that the light guide plate 17 will be warped or distorted when the light guide plate 17 thermally expands or contracts. If the light guide plate 17 is warped or distorted, a gap may be created between the light guide plate 17 and the diffusion cover 13, which may cause light leakage. Therefore, the ends of the light guide plate 17 are not completely fixed, but are held between the lower guide plate 16 and the upper guide plate 19 with some play, so that the ends of the light guide plate 17 are held by the gap 33. 17-1 can move.

The light emitted from the blue LED module 18 is incident on the end surface 17-1 of the light guide plate 17, and travels inside the light guide plate 17 while being totally reflected by the upper and lower surfaces of the light guide plate 17. A part of the light traveling inside the light guide plate 17 is scattered when it hits a scatterer inside the light guide plate 17. Blue light, which is the first light, is emitted from the lower surface of the light guide plate 17 .

The light guide plate cover 26 is placed on the upper guide plate 19. The light guide plate cover 26 covers the light guide plate 17 and protects the light guide plate 17. As shown in FIG. 4, the light guide plate cover 26 is provided with protrusions 26-1 on two opposing sides extending in the transverse direction, and the protrusions 26-1 are attached to the first module shown in FIG. It is screwed and fixed to the holding member 15. As a result, the upper guide plate 19 is held by the force applied from above by the light guide plate cover 26, and is prevented from moving in the longitudinal direction by the protrusion 26-1. The upper cover 27 is arranged to cover the first module holding member 15, the light guide plate 17, the diffusion cover 13, etc., and is attached to the flange portion 11 with screws 64. On the upper surface of the upper cover 27, as shown in FIG. 5, a power supply device 31 and a light control unit 32 are placed.

As shown in FIG. 6, the lower guide plate 16 extends horizontally to a position where it does not interfere with the diffusion cover 13 when viewed from the side, and holds the lower surface of the light guide plate 17. Therefore, the extended end 16-2 of the lower guide plate 16 and the end of the diffusion cover 13 are not in contact with each other. On the other hand, the upper end surface 13-3 of the diffusion cover 13 is adjacent to the lower surface 17-3 of the light guide plate 17 via the packing 22. Therefore, in a side view, the area from the point where the end surface 13-3 of the diffusion cover 13 and the light guide plate 17 are adjacent to the end 16-2 of the lower guide plate 16 is the lower surface 17-3 of the light guide plate 17. is covered with packing 22. Furthermore, in a side view, the lower surface 17-3 of the light guide plate 17 is covered by the lower guide plate 16 from the end 16-2 of the lower guide plate 16 to the blue LED module 18. With this configuration, it is possible to prevent the light emitted from the blue LED module 18 from entering the end surface 13-3 of the diffusion cover 13 from the lower surface 17-3 of the light guide plate 17. Furthermore, at the same time, it is possible to prevent the white light emitted from the white LED module 14 from entering the lower surface 17-3 of the light guide plate 17 from the end surface 13-3 of the diffusion cover 13.

Further, as shown in FIG. 6, the lower surface of the upper guide plate 19 and the upper surface of the light guide plate 17 are in contact with each other. This prevents the light emitted by the blue LED module 18 from leaking from between the light guide plate 17 and the upper guide plate 19. Note that, as shown in FIG. 6, the upper guide plate 19 also extends in the horizontal direction when viewed from the side. It is desirable that the position of the horizontally extending end of the upper guide plate 19 be aligned with the position of the end 16-2 of the lower guide plate 16.

With the above structure, as shown in FIG. -1. Thereafter, the light travels within the light guide plate 17 in the region sandwiched between the upper guide plate 19 and the lower guide plate 16 while being totally reflected by the upper and lower surfaces of the light guide plate 17. Thereafter, the light travels within the light guide plate 17 in the region sandwiched between the light guide plate cover 26 and the packing 22 while being totally reflected by the upper and lower surfaces of the light guide plate 17. Then, the light is emitted from the lower surface of the light guide plate 17 where the packing 22 is not provided. As a result, the light emitted by the blue LED module 18 is emitted from the lower surface of the light guide plate 17 without causing any light leakage.

FIG. 8 is an exploded side view showing the lighting fixture 1 according to the first embodiment. Here, the arrangement of the blue LED module 18 and the white LED module 14 of the first embodiment will be described in detail. Hereinafter, the blue LED module 18 may be referred to as a first light source section, and the white LED module 14 may be referred to as a second light source section. As shown in FIGS. 6 and 8, as described above, the second light source section is arranged on the side farther away from the instrument main body 50 than the first light source section. Note that the first light source section and the second light source section are arranged so as to irradiate light in the width direction.

Furthermore, the holding member 30 made up of the second module holding member 24 and the first module holding member 15 is provided in a stepped shape. Here, the second module holding member 24 holds the first light source part and has an L-shaped cross section. The first module holding member 15 is connected to the second module holding member 24 by screws or the like, holds the second light source, and is arranged at a position closer to the side surface 52 than the first light source. ing. In this way, the holding member 30 has a function of separating the first light source section and the second light source section in the width direction by being provided in a stepped shape. The second light source section is closer to the side surface of the instrument main body 50 than the first light source section. Here, a case will be described in which the first light source section and the second light source section are provided at the end of the light source unit 10 as in the first embodiment. In this case, if the second light source section, which is disposed further away from the instrument main body 50 than the first light source section, is closer to the side surface 52 of the instrument main body 50 than the first light source section, the light source unit 10 A space between the luminaire body 50 and the luminaire body 50 is located at the end of the luminaire 1. Therefore, when the hanging bolt B is arranged at the end of the lighting fixture 1, the hanging bolt B can be arranged in the space between the light source unit 10 and the fixture main body 50.

FIG. 9 is a top view showing the light source unit 10 according to the first embodiment. As shown in FIGS. 8 and 9, the upper cover 27 faces the instrument main body 50 and covers the first light source section and the second light source section, as described above. Here, the portion of the upper cover 27 that faces the holding member 30 is an inclined surface 27a that is inclined with respect to the main surface 51. The inclined surfaces 27a are formed at both ends of the upper cover 27 in the width direction. A central portion of the upper cover 27 sandwiched between the inclined surfaces 27a on both sides is a recessed portion 27b recessed toward the side away from the instrument main body 50. A power supply device 31 and a light control unit 32 are housed in the recess 27b. As described above, the power supply devices 31 are provided, for example, five in number, including one large power supply device 31A extending in one direction, two medium-sized power supply devices 31B extending in one direction, and one large power supply device 31A extending in one direction. One extending small power supply device 31C is provided. The large power supply device 31A is provided at the end of the recess 27b in the width direction, and the two medium power supply devices 31B are provided adjacent to the large power supply device 31A. The two small-sized power supply devices 31C are provided adjacent to the medium-sized power supply device 31B, and are arranged at the ends of the recessed portion 27b in the width direction. As described above, for example, five light control units 32 are provided. The five light control units 32 are arranged adjacent to the five power supply devices 31, respectively. The recessed portion 276 is formed between the portions of the opposing blue LED modules 18 where no LED is mounted. By housing the power supply device 31 and the light control unit 32 in the recess 276, the height of the light source unit 10 can be reduced. Note that the number of power supply devices 31 and dimming units 32 can be changed as appropriate.

A storage space 50a for storing a fixture is formed between the main surface 51 of the instrument body 50 and the inclined surface 27a. Here, the fixture of the first embodiment is a hanging bolt B.

Note that a reflective material may be provided on the upper surface of the lower guide plate 16. When a reflective material is provided, the light emitted by the blue LED module 18 is actively reflected by the reflective material, so the efficiency of using the light emitted by the blue LED module 18 can be increased.

Further, it is desired to arrange the light guide plate 17 so that the boundary between the light emitting surface of the light guide plate 17 and the light emitting surface 13-1 of the diffusion cover 13 is not felt by the user. Therefore, the lower surface 17-3, which is the output surface of the light guide plate 17, is arranged adjacent to the edge of the light emitting surface 13-1 of the diffusion cover 13 so as to be in contact with the edge thereof. On the other hand, if the lower surface 17-3 of the light guide plate 17 and the end surface 13-3 of the diffusion cover 13 are brought into direct contact, blue light will be transmitted from the lower surface 17-3 of the light guide plate 17 to the end surface 13-3 of the diffusion cover 13. There is a risk that it will fall into 3. Furthermore, there is a possibility that white light may enter the lower surface 17-3 of the light guide plate 17 from the end surface 13-3 of the diffusion cover 13. If light gets in, the visual effect of imitating a blue sky will deteriorate. Therefore, in the first embodiment, a packing 22 serving as a light shielding portion is sandwiched between the lower surface 17-3 of the light guide plate 17 and the end surface 13-3 of the diffusion cover 13. With this configuration, blue light is blocked from entering the end surface 13-3 of the diffusion cover 13 from the bottom surface 17-3 of the light guide plate 17, and white light is blocked from entering the bottom surface 17 of the light guide plate 17 from the end surface 13-3 of the diffusion cover 13. -3 It is possible to block light so that it does not enter.

In addition, in Embodiment 1, an example in which the light shielding section is configured with the packing 22 has been described, but the present invention is not limited to that case. For example, the diffusion cover 13 may have a function as a light shielding section. In that case, the diffusion cover 13 is formed by preparing two types of resin: a white resin that is translucent and a white resin that is not translucent. As a forming method, the two types of resins are simultaneously poured into a mold and integrally molded, thereby forming the diffusion cover 13 in two colors. In this way, the diffusion cover 13 is formed at the first portion that is translucent and functions as the light emitting surface 13-1, and at the end of the first portion, and functions as a light shielding portion without being translucent. A second part will be provided. In this case, the second portion is placed in contact with the output surface of the light guide plate 17. That is, the second portion is arranged at a position corresponding to the packing 22 in FIG. In this case, since the packing 22 is not required, the number of parts constituting the lighting fixture 1 can be reduced and ease of assembly can be improved.

Note that in the first embodiment, a case has been described in which the light color of the first light is blue and the light color of the second light is white. However, the present invention is not limited to this case, and the first light and the second light may have the same light color. Further, the light colors of the first light and the second light are not limited to blue and white, respectively, but other colors may be used, for example, the light color of the first light may be red in the evening. good.

Note that providing a light shielding portion between the output surface of the light guide plate 17 and the upper end surface 13-3 of the diffusion cover 13 can be applied to other lighting equipment besides the lighting equipment 1. For example, the first light emitted from the lower surface 17-3 of the light guide plate 17 and the second light emitted from the light emitting surface 13-1 of the diffusion cover 13 have the same light color and light intensity. It can also be applied to lighting equipment that produces different visual effects.

According to the first embodiment, the first light source section and the second light source section, which are located at different positions in the height direction, are spaced apart in the width direction. Therefore, the first light source section and the second light source section are not adjacent to each other, and a space is formed to the side of the first light source section and above the second light source section. By arranging the fixtures such as the hanging bolts B in the space, the height of the instrument main body 50 can be reduced without interference between the hanging bolts B and the light source unit 10. Therefore, a compact lighting fixture 1 can be realized.

Further, the holding member 30 holds the first light source section and has a second module holding member 24 having an L-shaped cross section. Further, the holding member 30 is connected to the second module holding member 24 and holds the second light source part, and the first module holding member 30 is arranged at a position closer to the side surface 52 than the first light source part. It further includes a member 15. Therefore, when the hanging bolt B is placed at the end of the lighting fixture 1, a fixture such as the hanging bolt B can be placed in the space between the light source unit 10 and the fixture body 50. Thereby, interference of the fixture with the light source unit 10 can be suppressed.

The light source unit 10 further includes an upper cover 27 that faces the instrument body 50 and covers the first light source section and the second light source section. The inclined surface 27a is inclined with respect to the surface 51. A storage space 50a for storing a fixture is formed between the main surface 51 and the inclined surface 27a. In this way, in the first embodiment, since the holding member 30 consisting of the second module holding member 24 and the first module holding member 15 is provided in a stepped shape, the holding member 30 on the upper cover 27 is The opposing parts can be inclined. Therefore, the hanging bolt B, which is a fixture, can be stored in the storage space 50a, which is the space between the inclined surface 27a and the main surface 51 of the instrument main body 50. Therefore, the height of the instrument main body 50 can be reduced without interference between the hanging bolt B and the light source unit 10.

Here, in the instrument body 50, in order to prevent the V spring 12 from interfering with the hanging bolt B, which is a fixture, the bolt hole 51-1 is formed inside the edge of the instrument body 50. . The bolt hole 51-1 is formed at a position facing the inclined surface 27a. Therefore, even if the bolt hole 51-1 is formed so as to prevent the V spring 12 from interfering with the fixture, there is no need to increase the height of the instrument body 50, and the length of the instrument body 50 in the width direction is eliminated. There's no need to make it long. Note that even if the means for attaching the light source unit 10 to the instrument main body 50 is different from that in the first embodiment, the same effect can be achieved as long as the upper cover 27 has the inclined surface 27a.

Further, as described above, in the first embodiment, there is a gap between the lower surface of the light guide plate 17, which is the output surface, and the upper end surface 13-3 of the diffusion cover 13 provided on the output surface side of the light guide plate 17. , a packing 22 is provided as a light shielding part. This makes it possible to block the blue light, which is the first light emitted from the output surface of the light guide plate 17, from entering the upper end surface 13-3 of the diffusion cover 13 from the output surface of the light guide plate 17. can. Further, it is possible to block white light, which is the second light emitted from the light emitting surface 13-1 of the diffusion cover 13, from entering the light guide plate 17 from the upper end surface 13-3 of the diffusion cover 13. . This reduces the production of visual effects caused by the different lights, the first light and the second light, being emitted from different surfaces, the lower surface 17-3 of the light guide plate 17 and the light emitting surface 13-1 of the diffusion cover 13. can be restrained from doing so.

Alternatively, without providing the packing 22, the diffusion cover 13 is provided with a first portion that is translucent and functions as the light emitting surface 13-1, and an end portion of the first portion that is translucent. Alternatively, the light shielding portion may be constructed of a second portion that functions as a light shielding portion. In that case, the packing 22 becomes unnecessary, so the number of parts that make up the lighting fixture 1 can be reduced and the ease of assembly can be improved.

Further, in the first embodiment, a packing 21 as a second packing is provided between the flange portion 11 and the lower end surface 13-4 of the diffusion cover 13. Thereby, when the lighting fixture 1 is subjected to vibrations such as an earthquake, the packing 21 prevents the flange portion 11 and the diffusion cover 13 from directly colliding with each other. By sandwiching the packing 21, the force applied from the flange portion 11 to the diffusion cover 13 is relaxed due to the elasticity of the packing 21, and it is possible to prevent the diffusion cover 13 from cracking.

Further, in the first embodiment, since the white LED module 14 is formed in a U-shape, white light can be emitted from three directions toward the inside of the U-shape. As a result, it is possible to create a visual effect with a sense of depth, as if light from outside is shining through a sunlit window frame or a shaded window frame.

Furthermore, in the first embodiment, when the user views the lighting fixture 1 from below, the light guide plate 17 is arranged on the back side of the diffusion cover 13, that is, on the ceiling C side, and Blue light is emitted. As a result, it is possible to create a visual effect with a sense of depth, as if looking at the blue sky through a sunlit window frame or a shaded window frame.

Note that the first embodiment has been described on the assumption that the lighting fixture 1 is attached to the ceiling C. However, the lighting fixture 1 may be installed on an indoor wall. However, in that case, the white LED module 14 is made into an L-shape in plan view. Further, in accordance with this, of the four side surfaces of the diffusion cover 13, two adjacent surfaces are set as light-emitting surfaces 13-1, and the other two sides are set as non-light-emitting surfaces 13-2. The other configurations are the same as in the first embodiment. As a result, when the lighting fixture 1 is installed on a wall in the room, as well as when the lighting fixture 1 is installed on the ceiling C, a sense of depth can be obtained through the sunlit window frame and the shaded window frame. It is possible to create a visual effect that makes you feel like you are looking at a clear blue sky.

1 Lighting equipment, 10 Light source unit, 11 Flange part, 12 V spring, 13 Diffusion cover, 13-1 Light-emitting surface, 13-2 Non-light-emitting surface, 13-3 Upper end surface, 13-4 Lower end surface, 14 White LED module, 15 first module holding member, 15-1 mounting flange, 15-2 protrusion, 15-3 guide, 16 lower guide plate, 16-1 protrusion, 16-2 end, 16-3 protrusion part, 17 light guide plate, 17-1 end surface, 17-2 end surface, 17-3 bottom surface, 18 blue LED module, 18-1 through hole, 18-2 through hole, 19 upper guide plate, 19-1 protrusion, 21 packing, 22 packing, 23 insulating plate, 24 second module holding member, 25 fixing member, 25-1 protrusion, 26 light guide plate cover, 26-1 protrusion, 27 upper cover, 27a slope, 27b recess, 28 Reflective sheet, 28-1 Adhesive part, 30 Holding member, 31 Power supply device, 32 Light control unit, 33 Gap, 50 Appliance body, 50a Storage space, 51 Main surface, 51-1 Bolt hole, 51-2 Wire hole, 52 Side, 53 V spring mounting bracket, 54 Terminal block, 61 Nut, 62, 63, 64 Screw, 81 LED, B Hanging bolt, C Ceiling, H Embedded hole.

Claims (5)

an instrument main body having a main surface that is attached to the attached part by a fixture, and a plurality of side surfaces that stand up from the main surface;
a light source unit attached to the instrument main body and housed between the main surface and the plurality of side surfaces;
The light source unit is
a first light source unit that irradiates light;
a second light source section that is disposed on a side opposite to the attached part side from the first light source section and irradiates light;
A lighting fixture, comprising: a holding member provided in a stepped shape so that the first light source section and the second light source section are spaced apart in a width direction that is a direction perpendicular to the irradiation direction. The holding member is
a second module holding member that holds the first light source and has an L-shaped cross section;
A first module holding member connected to the second module holding member, holding the second light source, and disposed at a position closer to the side surface than the first light source. The lighting fixture according to claim 1, comprising: The light source unit is
further comprising an upper cover facing the instrument main body and covering the first light source section and the second light source section,
The upper cover is
The lighting fixture according to claim 1 or 2, wherein a portion facing the holding member is an inclined surface inclined with respect to the main surface. an instrument main body having a main surface that is attached to the attached part by a fixture, and a plurality of side surfaces that stand up from the main surface;
a light source unit attached to the instrument main body and housed between the main surface and the plurality of side surfaces;
The light source unit is
a first light source unit that irradiates light;
a second light source section that is arranged on a side farther from the instrument body than the first light source section and emits light;
a holding member provided in a step shape so that the first light source part and the second light source part are spaced apart in the width direction;
The light source unit is
further comprising an upper cover facing the instrument main body and covering the first light source section and the second light source section,
The upper cover is
A portion facing the holding member is an inclined surface inclined with respect to the main surface,
A storage space for storing the fixture is formed between the main surface and the inclined surface. The lighting fixture. The first light source section and the second light source section are
The lighting fixture according to any one of claims 1 to 4, wherein the lighting fixture is arranged so as to irradiate light in the width direction.

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