lighting fixtures

Abstract

To provide a lighting apparatus which can emit light to above and below.SOLUTION: A lighting apparatus 10 comprises: an attachment member 70 attached to an installation face; and a main body part 40 which is detachably attached to the attachment member 70. The attachment member 70 has an upper extension part and a lower extension part which extend to a front side being a side opposite to the installation face from the attachment part which is attached to the installation face. The main body part 40 is formed into a long-length shape. The main body part 40 comprises a first light emitting device 20 for radiating an upper part and a second light emitting device 30 for radiating a lower part being the installation face side, at a plate which is detachably attached to the attachment member 70. When viewing the first light emitting device 20 and the second light emitting device 30 from the front side, the first light emitting device 20 and the second light emitting device 30 are not superimposed on each other in a vertical direction, and a clearance exists therebetween. The plate is fixed to the upper extension part of the attachment member 70 by a fixing tool.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture equipped with a light-emitting element such as an LED (Light Emitting Diode). [Background technology]

[0002] In recent years, lighting fixtures using LEDs have rapidly become popular. As an example of such a lighting fixture, Patent Document 1 discloses a so-called bracket-type lighting fixture that is installed on the wall of a hospital room or guest room. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-222692 Summary of the Invention [Problem to be solved by the invention]

[0004] In the lighting fixtures described above, abnormal noise may be generated when the cover thermally expands.

[0005] The present invention provides a lighting fixture that can emit light both upward and downward. [Means for solving the problem]

[0006] A lighting fixture according to one aspect of the present invention comprises a mounting member that is attached to an installation surface, and a main body that is removably attached to the mounting member, wherein the mounting member has an upper extension portion and a lower extension portion that extend from the mounting portion that is attached to the installation surface to the front side, which is opposite the installation surface, and the main body is elongated, and the main body comprises a plate that is removably attached to the mounting member, a first light-emitting device that illuminates upward, and a second light-emitting device that illuminates downward, toward the installation surface, and when the first light-emitting device and the second light-emitting device are viewed from the front, the first light-emitting device and the second light-emitting device do not overlap in the vertical direction, but rather there is a gap between them, and the plate is fixed to the upper extension portion of the mounting member with a fixing device. [Effects of the Invention]

[0007] The lighting fixture of the present invention can emit light both upward and downward. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing an example of use of a lighting fixture according to an embodiment. [Figure 2A] FIG. 2A is a diagram illustrating a base lighting mode of a lighting device according to an embodiment. [Figure 2B] FIG. 2B is a diagram illustrating the reading light mode of the lighting device according to the embodiment. [Figure 2C] FIG. 2C is a diagram illustrating the night light mode of the lighting device according to the embodiment. [Figure 3] FIG. 3 is an external perspective view of the lighting fixture according to the embodiment as viewed from above. [Figure 4] FIG. 4 is an exploded perspective view of the lighting fixture according to the embodiment as viewed from above. [Figure 5] FIG. 5 is an external perspective view of the lighting fixture according to the embodiment as viewed from below. [Figure 6] FIG. 6 is an exploded perspective view of the lighting fixture according to the embodiment as viewed from below. [Figure 7]FIG. 7 is a schematic cross-sectional view of the lighting fixture according to the embodiment taken along a plane perpendicular to the longitudinal direction. [Figure 8] FIG. 8 is a diagram showing a notch provided at an end in the longitudinal direction of a groove portion of the first plate. [Figure 9] FIG. 9 is a diagram showing the structure of the surface of the mounting member on the side of the main body. [Figure 10] FIG. 10 is a diagram showing an opening provided in the second plate through which light emitted by the bulb passes. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement positions, and connection forms shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, among the components in the following embodiments, components that are not described in the independent claims that represent the highest concepts will be described as optional components.

[0010] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Furthermore, in each figure, substantially the same configuration is given the same reference numeral, and duplicated explanations may be omitted or simplified. Furthermore, in the following embodiments, the expressions "almost" or "approximately" also mean to include manufacturing errors, dimensional tolerances, etc.

[0011] Coordinate axes may be shown in the drawings used in the following embodiments. The Z-axis direction is described as the height direction of the lighting fixture. The positive side of the Z-axis may be expressed as the upper side (upward), and the negative side of the Z-axis may be expressed as the lower side (downward). The X-axis direction and the Y-axis direction are perpendicular to each other on a plane perpendicular to the Z-axis direction. The Y-axis direction is described as the longitudinal direction of the lighting fixture. The X-axis direction is described as the lateral direction (width direction) of the lighting fixture.

[0012] (Embodiment) [Lighting fixture configuration] First, an example of how the lighting fixture according to the embodiment is used will be described. Fig. 1 is a diagram showing an example of how the lighting fixture according to the embodiment is used.

[0013] As shown in Fig. 1, lighting fixture 10 according to the embodiment is an elongated lighting fixture. Specifically, lighting fixture 10 has a rectangular pillar shape. Lighting fixture 10 is attached to, for example, a wall 200 of a hospital room. Wall 200 of a hospital room is an example of a structure. Lighting fixture 10 attached to wall 200 of a hospital room is positioned above the head of a user lying in a bed in the hospital room.

[0014] Lighting device 10 can operate in three light emission modes. Figures 2A to 2C are diagrams illustrating the light emission modes of lighting device 10.

[0015] 2A, the lighting fixture 10 emits light upward from the lighting fixture 10 and away from the wall 200. This allows the lighting fixture 10 to illuminate the interior of the patient room.

[0016] In operation in the reading light mode shown in Figure 2B, lighting fixture 10 emits light downward from lighting fixture 10 and toward wall 200. This allows lighting fixture 10 to indirectly illuminate the area around the user's head.

[0017] 2C, lighting device 10 illuminates the light bulb included in lighting device 10. The night light mode is used, for example, at night.

[0018] The detailed configuration of such lighting fixture 10 will be described below. Fig. 3 is an external perspective view of lighting fixture 10 as viewed from above. Fig. 4 is an exploded perspective view of lighting fixture 10 as viewed from above. Fig. 5 is an external perspective view of lighting fixture 10 as viewed from below. Fig. 6 is an exploded perspective view of lighting fixture 10 as viewed from below. Fig. 7 is a schematic cross-sectional view of lighting fixture 10 cut along a plane perpendicular to the longitudinal direction.

[0019] Lighting fixture 10 mainly includes a plurality of first light-emitting devices 20, a plurality of second light-emitting devices 30, a main body 40, a first power supply device 50, a second power supply device 60, a mounting member 70, a light bulb 75, a cover 80, an end cover 90a, and an end cover 90b. Each component of lighting fixture 10 will be described below.

[0020] [First light-emitting device] The first light-emitting device 20 emits light during operation in the base lighting mode. The first light-emitting device 20 is a light-emitting device with an SMD (Surface Mount Device) structure. The lighting device 10 includes a plurality of first light-emitting devices 20, which are arranged side by side in the longitudinal direction of the lighting device 10 on a first mounting surface 41a of a first plate 41 of the main body 40. The first light-emitting devices 20 are elongated and arranged such that the longitudinal direction of the first light-emitting devices 20 is aligned with the longitudinal direction of the lighting device 10. The plurality of first light-emitting devices 20 emit light mainly toward a first translucent portion T1 (shown in FIG. 7 ) included in a first flat plate portion 81 of the cover 80. Note that the lighting device 10 is required to include at least one first light-emitting device 20.

[0021] Specifically, the first light emitting device 20 includes a substrate 21 and a plurality of LED elements 22. The first light emitting device 20 only needs to include at least one LED element 22.

[0022] The substrate 21 is a long, flat plate with its longitudinal direction in the Y-axis direction. When viewed from a direction perpendicular to the main surface of the substrate 21, the shape of the substrate 21 is rectangular, but it may have other shapes.

[0023] The substrate 21 is, for example, a CEM-3 (Composite Epoxy Material-3) substrate based on a resin material, but may also be another resin substrate, a metal-based substrate based on a metal material, or a ceramic substrate based on a ceramic material. An example of another resin substrate is an FR-4 (Flame Retardant-4) substrate. Examples of ceramic substrates include an alumina substrate made of aluminum oxide (alumina) or an aluminum nitride substrate made of aluminum nitride. Examples of metal-based substrates include an aluminum alloy substrate, an iron alloy substrate, or a copper alloy substrate.

[0024] Furthermore, the substrate 21 is not limited to a rigid substrate, but may be a flexible substrate whose base material is polyimide or the like.

[0025] The LED element 22 is an SMD-type light-emitting element that emits white light. The LED element 22 includes a package with a recess, an LED chip mounted on the bottom of the recess, and a sealing material that fills the recess and seals the LED chip. The LED chip is, for example, a blue LED chip that emits blue light, and the sealing material is, for example, a silicone resin containing yttrium-aluminum-garnet (YAG)-based yellow phosphor particles as a wavelength conversion material. The LED element 22 also includes metal terminals for mounting the LED element 22 on the substrate 21.

[0026] The plurality of LED elements 22 are arranged on the main surface of the substrate 21 and emit light using power supplied from the first power supply device 50. Specifically, the plurality of LED elements 22 are arranged in a straight line along the longitudinal direction of the substrate 21 to form a light-emitting element row. The light-emitting element row is located closer to the +X-axis side of the substrate 21. The plurality of LED elements 22 are arranged, for example, at equal intervals. The plurality of LED elements 22 emit light mainly toward a first light-transmitting portion T1 (shown in FIG. 7) included in a first flat plate portion 81 of the cover 80.

[0027] The LED elements 22 are connected in series, for example, by a wiring pattern included in the wiring layer of the substrate 21. The electrical connection mode of the LED elements 22 (specifically, series connection, parallel connection, a combination of series connection and parallel connection, etc.) is not particularly limited.

[0028] [Second light-emitting device] The second light-emitting device 30 emits light during operation in the reading light mode. Similar to the first light-emitting device 20, the second light-emitting device 30 is a light-emitting device with an SMD structure. Specifically, the second light-emitting device 30 includes a substrate 31 and a plurality of LED elements 32. The second light-emitting device 30 is required to include at least one LED element 32.

[0029] The second light-emitting device 30 emits light during operation in the reading light mode. The second light-emitting device 30 is a light-emitting device with an SMD structure. The lighting device 10 includes a plurality of second light-emitting devices 30, which are arranged side by side in the longitudinal direction of the lighting device 10 on the second mounting surface 42a of the second plate 42 of the main body 40. The second light-emitting devices 30 are elongated and arranged such that the longitudinal direction of the second light-emitting devices 30 is aligned with the longitudinal direction of the lighting device 10. The plurality of second light-emitting devices 30 emit light mainly toward a second translucent portion T2 (shown in FIG. 7 ) included in the second flat plate portion 82 of the cover 80. Note that the lighting device 10 is only required to include at least one second light-emitting device 30.

[0030] Specifically, the second light emitting device 30 includes a substrate 31 and a plurality of LED elements 32. The second light emitting device 30 only needs to include at least one LED element 32.

[0031] The substrate 31 is a long, flat plate with its longitudinal direction in the Y-axis direction. The shape of the substrate 31 when viewed from a direction perpendicular to the main surface of the substrate 31 is rectangular, but may be other shapes.

[0032] The substrate 31 is, for example, a CEM-3 substrate based on a resin material, but may also be other resin substrates, metal-based substrates based on a metal material, or ceramic substrates based on a ceramic material. An example of other resin substrates is an FR-4 substrate. Examples of ceramic substrates include an alumina substrate made of aluminum oxide (alumina) or an aluminum nitride substrate made of aluminum nitride. Examples of metal-based substrates include an aluminum alloy substrate, an iron alloy substrate, or a copper alloy substrate.

[0033] Furthermore, the substrate 31 is not limited to a rigid substrate, but may be a flexible substrate whose base material is polyimide or the like.

[0034] The LED element 32 is an SMD-type light-emitting element that emits white light. The LED element 32 includes a package with a recess, an LED chip mounted on the bottom of the recess, and a sealing material that fills the recess and seals the LED chip. The LED chip is, for example, a blue LED chip that emits blue light, and the sealing material is, for example, a silicone resin containing yttrium-aluminum-garnet (YAG)-based yellow phosphor particles as a wavelength conversion material. The LED element 32 also includes metal terminals for mounting the LED element 32 on the substrate 31.

[0035] The plurality of LED elements 32 are arranged on the main surface of the substrate 31 and emit light using power supplied from the first power supply device 50. Specifically, the plurality of LED elements 32 are arranged in a straight line along the longitudinal direction of the substrate 31 to form a light-emitting element row. The light-emitting element row is located closer to the +X-axis side of the substrate 31. The plurality of LED elements 32 are arranged, for example, at equal intervals. The plurality of LED elements 32 emit light mainly toward the second light-transmitting portion T2 (shown in FIG. 7) of the second flat plate portion 82 of the cover 80.

[0036] The LED elements 32 are connected in series by, for example, a wiring pattern included in the wiring layer of the substrate 31. The electrical connection mode of the LED elements 32 (specifically, series connection, parallel connection, a combination of series connection and parallel connection, etc.) is not particularly limited.

[0037] [Main body] The main body 40 is a member that integrally holds components such as the plurality of first light-emitting devices 20, the plurality of second light-emitting devices 30, the first power supply device 50, the second power supply device 60, and the cover 80. Specifically, the main body 40 includes a first plate 41, a second plate 42, a first power supply holding plate 43, and a second power supply holding plate (not shown).

[0038] [Main body: First plate] First plate 41 is an elongated plate extending along the longitudinal direction of lighting fixture 10. A plurality of first light-emitting devices 20, mounting member 70, cover 80, etc. are screwed to first plate 41.

[0039] First plate 41 is formed by bending a steel plate such as SPCC. As shown in Fig. 7 , first plate 41 includes a portion that fits along first flat plate portion 81 of cover 80 and a portion that fits along third flat plate portion 83 of cover 80. A groove with a V-shaped cross section that extends in the longitudinal direction of lighting fixture 10 is formed in the portion that fits along first flat plate portion 81 of cover 80 by the bending process.

[0040] The first plate 41 has a first mounting surface 41a. The first mounting surface 41a is a substantially elongated rectangular surface extending along the longitudinal direction of the lighting device 10. The first mounting surface 41a forms part of the groove with a V-shaped cross section. A plurality of first light-emitting devices 20 are mounted on the first mounting surface 41a in a line along the longitudinal direction of the lighting device 10. A heat dissipation sheet or an insulating sheet may be disposed between the first light-emitting devices 20 and the first mounting surface 41a.

[0041] First mounting surface 41a is an inclined surface that forms part of a V-shaped cross-section groove. First mounting surface 41a is inclined with respect to mounting surface 70a and is neither perpendicular nor parallel to mounting surface 70a. More specifically, first mounting surface 41a is inclined so that first light-emitting device 20 emits light toward the side away from wall 200. This allows lighting fixture 10 to illuminate a space above a user with direct light of high light intensity when operating in the base lighting mode.

[0042] The first plate 41 is painted white, so that the light emitted by the first light emitting device 20 is reflected by the first plate 41, thereby improving the light utilization efficiency.

[0043] The first plate 41 also has a plurality of protrusions 41b. The protrusions 41b are arranged in a row in the longitudinal direction on a surface of the first plate 41 that is parallel to the first flat plate portion 81. The protrusions 41b come into contact with the first flat plate portion 81 (i.e., the cover 80). If the first plate 41 and the cover 80 are in point contact in this manner, abnormal noise caused by contact between the first plate 41 and the cover 80 when the first plate 41 or the cover 80 thermally expands is suppressed.

[0044] Each of the plurality of protrusions 41b is formed, for example, by pressing the first plate 41, but may also be formed by adhering or welding a separate protrusion.

[0045] Incidentally, a notch is provided at the longitudinal end of the groove having a V-shaped cross section. Fig. 8 is a diagram showing notch 45 provided at the longitudinal end of the groove of first plate 41. Cover 80 is not shown in Fig. 8.

[0046] More specifically, the notch 45 is provided at the bottom and end of the groove in the longitudinal direction. With this notch 45, if a foreign object such as a dead insect gets between the first plate 41 and the cover 80, the foreign object can be dropped into the main body 40 through the notch 45 by tilting the main body 40 without disassembling the lighting device 10. Therefore, even general users who cannot disassemble the lighting device 10 can easily remove foreign objects from around the first light-emitting device 20. Note that an opening may be provided at the longitudinal end of the groove instead of the notch 45. Furthermore, although such a notch is not provided at the longitudinal end of the groove of the second plate 42 described below, a notch or an opening may also be provided at the longitudinal end of the groove of the second plate 42.

[0047] [Main body: Second plate] The second plate 42 is an elongated plate extending along the longitudinal direction of the lighting fixture 10. A plurality of second light-emitting devices 30 and the like are screwed to the second plate 42.

[0048] Second plate 42 is formed by bending a steel plate such as SPCC. As shown in Fig. 7, second plate 42 includes a portion that fits along second flat plate portion 82 of cover 80 and a portion that fits along third flat plate portion 83 of cover 80. A groove with a V-shaped cross section that extends in the longitudinal direction of lighting fixture 10 is formed in the portion that fits along second flat plate portion 82 of cover 80 by the bending process.

[0049] The second plate 42 has a second mounting surface 42a. The second mounting surface 42a is a substantially elongated rectangular surface extending along the longitudinal direction of the lighting device 10. The second mounting surface 42a forms a side surface of the V-shaped cross-section groove. A plurality of first light-emitting devices 20 are arranged side by side in the longitudinal direction of the lighting device 10 on the second mounting surface 42a. A heat dissipation sheet or an insulating sheet may be arranged between the second light-emitting device 30 and the second mounting surface 42a.

[0050] Second mounting surface 42a is an inclined surface that forms part of a V-shaped cross-section groove. Second mounting surface 42a is inclined with respect to mounting surface 70a and is neither perpendicular nor parallel to mounting surface 70a. More specifically, second mounting surface 42a is inclined so that second light-emitting device 30 emits light toward wall 200. This allows lighting fixture 10 to illuminate the user's surroundings with indirect light of low intensity when operating in the reading light mode.

[0051] The second plate 42 is painted white, so that the light emitted by the second light emitting device 30 is reflected by the second plate 42, thereby improving the light utilization efficiency.

[0052] The second plate 42 also has a plurality of protrusions 42b. The plurality of protrusions 42b are arranged in a row in the longitudinal direction on a surface of the second plate 42 that is parallel to the second flat plate portion 82. The plurality of protrusions 42b contact the second flat plate portion 82 (i.e., the cover 80). If the second plate 42 and the cover 80 are in point contact in this manner, abnormal noise caused by contact between the second plate 42 and the cover 80 when the second plate 42 or the cover 80 thermally expands is suppressed.

[0053] Each of the plurality of protrusions 42b is formed, for example, by pressing the second plate 42, but may also be formed by adhering or welding a separate protrusion.

[0054] The first plate 41 and the second plate 42 described above are connected by, for example, sliding an L-shaped protrusion formed by cutting and raising one of the first plate 41 and the second plate 42 into an opening formed in the other of the first plate 41 and the second plate 42. Note that the first plate 41 and the second plate 42 may be integrally formed by bending a single metal plate.

[0055] [Main body: First power supply holding plate] First power supply holding plate 43 (shown in FIG. 7) is an elongated plate that holds first power supply unit 50 and extends along the longitudinal direction of lighting fixture 10. First power supply holding plate 43 has a V-shaped cross section. First power supply unit 50 is screwed to first power supply holding plate 43. First power supply holding plate 43 is formed, for example, by bending a steel plate such as SPCC. First power supply holding plate 43 is screwed to the inner surface of first plate 41, but may also be screwed to second plate 42.

[0056] Although not shown, a second power supply holding plate that holds the second power supply unit 60 is also screwed to the inner surface of the first plate 41. The second power supply holding plate that holds the second power supply unit 60 has the same configuration as the first power supply holding plate 43.

[0057] [First power supply] The first power supply device 50 is a device that supplies power to the first light-emitting device 20. Specifically, the first power supply device 50 converts AC power obtained via a power cable (not shown) into power suitable for light emission of the plurality of LED elements 22 included in the first light-emitting device 20, and supplies the converted power to the plurality of LED elements 22. As a result, the plurality of LED elements 22 emit light using the power supplied from the first power supply device 50.

[0058] The first power supply device 50 has an elongated outer shape extending in the longitudinal direction of the lighting fixture 10, and is screwed to the first power supply holding plate 43. The first power supply device 50 is held between the first plate 41 and the second plate 42 by the first power supply holding plate 43. More specifically, the first power supply device 50 is disposed between the surface of the first plate 41 opposite the first mounting surface 41a and the surface of the second plate 42 opposite the second mounting surface 42a. The surface of the first plate 41 opposite the first mounting surface 41a is, in other words, the bottom surface of the first plate 41, and the surface of the second plate 42 opposite the second mounting surface 42a is, in other words, the top surface of the second plate 42.

[0059] This allows the lighting device 10 to be more easily miniaturized than a lighting device in which the first power supply device 50 is disposed outside the main body 40. This realizes a lighting device 10 that is easy to miniaturize. The first power supply device 50 is located closer to the negative side of the Y axis than the second power supply device 60.

[0060] Specifically, the first power supply device 50 includes, for example, a circuit that converts AC power into DC power. The circuit includes a plurality of circuit elements, such as capacitive elements such as electrolytic capacitors or ceramic capacitors, resistive elements such as resistors, rectifier elements, fuses, noise filters, diodes, and semiconductor elements such as integrated circuit elements. The circuit that converts AC power into DC power is, for example, a switching power supply circuit.

[0061] [Second power supply] The second power supply device 60 is a device that supplies power to the second light-emitting device 30. Specifically, the second power supply device 60 converts AC power obtained via a power cable (not shown) into power suitable for light emission of the plurality of LED elements 32 included in the second light-emitting device 30, and supplies the converted power to the plurality of LED elements 32. As a result, the plurality of LED elements 32 emit light using the power supplied from the second power supply device 60.

[0062] The second power supply device 60 has a similar structure to the first power supply device 50. The second power supply device 60 has an elongated outer shape extending in the longitudinal direction of the lighting fixture 10, and is screwed to a second power supply holding plate for the second power supply device 60. Similar to the first power supply device 50, the second power supply device 60 is held between the first plate 41 and the second plate 42 by the second power supply holding plate. More specifically, the second power supply device 60 is disposed between the surface of the first plate 41 opposite the first mounting surface 41a and the surface of the second plate 42 opposite the second mounting surface 42a.

[0063] This makes it easier to make lighting device 10 smaller than lighting devices in which second power supply device 60 is disposed outside main body 40. Second power supply device 60 is located closer to the + side of the Y axis than first power supply device 50.

[0064] Specifically, the second power supply device 60 includes, for example, a circuit that converts AC power into DC power. The multiple circuit elements that make up the circuit include, for example, capacitive elements such as electrolytic capacitors or ceramic capacitors, resistive elements such as resistors, rectifier elements, fuses, noise filters, diodes, and semiconductor elements such as integrated circuit elements. The circuit that converts AC power into DC power is, for example, a switching power supply circuit.

[0065] [Mounting parts] The mounting member 70 is a plate-like member for mounting the main body 40 of the lighting fixture 10 to a structure such as a ceiling or a wall. In other words, the mounting member 70 is a mounting plate. When mounting the lighting fixture 10 to the wall 200, the mounting member 70 is first screwed to the wall 200, and then the main body 40 is attached to the mounting member 70. As a result, the mounting member 70 is interposed between the main body 40 and the wall 200. The mounting member 70 and the main body 40 are fastened together, for example, with screws. The mounting member 70 has a mounting surface 70a that faces the wall 200.

[0066] The mounting member 70 is a long plate material, and is formed by bending a steel plate such as SPCC. When viewed from a direction parallel to the X-axis, the shape of the mounting member 70 is rectangular, and the length of the mounting member 70 in the Y-axis direction is approximately the same as the length of the main body 40 in the Y-axis direction.

[0067] A light bulb 75 is placed on the surface of the mounting member 70 facing the main body 40. Fig. 9 is a diagram showing the structure of the surface of the mounting member 70 facing the main body 40. In other words, the surface facing the main body 40 is the surface opposite the mounting surface 70a.

[0068] The light bulb 75 is a miniature bulb. The light bulb 75 emits warm white light when operating in the night light mode. The light bulb 75 is, for example, an LED light bulb, but may also be an incandescent light bulb or the like.

[0069] Light bulb 75 mainly illuminates the negative Z-axis side (i.e., downward). Lighting device 10 is made smaller by shortening its length in the Z-axis direction, and it is therefore not possible to position light bulb 75 so that its optical axis is parallel to the Z-axis direction, so that light bulb 75 emits light toward the negative Z-axis side. Therefore, the optical axis of light bulb 75 is tilted with respect to the longitudinal direction of lighting device 10 so that light bulb 75 emits light toward second plate 42 (i.e., toward the negative Z-axis). This allows for a greater amount of light to be emitted toward second plate 42 than when light bulb 75 is positioned so that its optical axis is parallel to the longitudinal direction. This means that the utilization efficiency of the light emitted by light bulb 75 can be improved.

[0070] Furthermore, a reflector 76 that reflects light emitted by the light bulb 75 toward the second plate 42 is disposed on the surface of the mounting member 70 facing the main body 40. The reflector 76 is located on the +Z axis side of the light bulb 75. The reflector 76 is disposed so that its reflective surface faces the light bulb 75 and also faces the optical axis of the light bulb 75. The reflector 76 is formed, for example, by bending a steel plate such as SPCC. The reflector 76 is painted white to enhance its light reflectivity. The reflector 76 can increase the amount of light emitted toward the -Z axis side (i.e., toward the second plate 42).

[0071] In order not to block the light emitted by the light bulb 75, an opening 42c through which the light emitted by the light bulb 75 passes is provided in the portion of the second plate 42 facing the light bulb 75. Fig. 10 is a diagram showing the opening 42c provided in the second plate 42 through which the light emitted by the light bulb 75 passes.

[0072] Opening 42c is, for example, a racetrack-shaped slot, but the shape of opening 42c is not particularly limited. Also, a notch may be provided in place of opening 42c in the portion of second plate 42 facing light bulb 75.

[0073] [cover] The cover 80 covers the plurality of first light-emitting devices 20 and the plurality of second light-emitting devices 30. The cover 80 has a first flat plate portion 81 facing the plurality of first light-emitting devices 20, a second flat plate portion 82 facing the plurality of second light-emitting devices 30, and a third flat plate portion 83 connecting the first flat plate portion 81 and the second flat plate portion 82. Each of the first flat plate portion 81, the second flat plate portion 82, and the third flat plate portion 83 has a substantially elongated rectangular shape. The cross-sectional shape of the cover 80 is a square bracket shape.

[0074] The cover 80 includes a light-transmitting portion and a light-shielding portion. The light-transmitting portion is the hatched portion in Figs. 3 to 6. In Fig. 7, the light-transmitting portion is illustrated using reference numerals to distinguish it into a first light-transmitting portion T1 and a second light-transmitting portion T2, and the portion of the cover 80 other than the first light-transmitting portion T1 and the second light-transmitting portion T2 is a light-shielding portion. The first flat plate portion 81 includes a first light-transmitting portion T1 that transmits light emitted by the plurality of first light-emitting devices 20, the second flat plate portion 82 includes a second light-transmitting portion T2 that transmits light emitted by the plurality of second light-emitting devices 30, and the third flat plate portion 83 does not include a light-transmitting portion.

[0075] Here, the external area of ​​the first light-transmitting portion T1 is larger than the external area of ​​the second light-transmitting portion T2. ​​As a result, during operation in the base lighting mode, light emitted by the multiple first light-emitting devices 20 can pass through the relatively large first light-transmitting portion T1 and illuminate a wide range of space. On the other hand, during operation in the reading light mode, light emitted by the multiple second light-emitting devices 30 can pass through the relatively small second light-transmitting portion T2 and illuminate only the user's surroundings. Note that during operation in the night light mode, light emitted by the light bulb 75 passes through the second light-transmitting portion T2.

[0076] 7, when viewed from a direction perpendicular to the second flat plate portion 82, the light-shielding portion (portion other than the second light-transmitting portion T2) included in the second flat plate portion 82 overlaps with the LED element 32 of the second light-emitting device 30. As described above, the multiple second light-emitting devices 30 emit light from above the user's head toward the user during operation in the reading light mode, but if the area directly below the LED element 32 is light-shielded, it is possible to prevent the user from looking directly at the LED element 32 of the second light-emitting device 30.

[0077] The cover 80 described above is formed, for example, by extrusion molding of polycarbonate resin. Therefore, the cross-sectional shape of the cover 80 cut along a plane perpendicular to the Y-axis direction is substantially the same regardless of the cutting position. Note that the cover 80 may be formed by a method other than extrusion molding. Furthermore, it is not essential that the cover 80 be made of a resin material; for example, the light-transmitting portion of the cover 80 may be made of a glass material.

[0078] [End cover] The end cover 90a is an end cap that covers one longitudinal end of the main body 40. The end cover 90b is an end cap that covers the other longitudinal end of the main body 40. The end covers 90a and 90b are formed from a resin material such as polybutylene terephthalate resin, but may also be formed from a metal material. The end covers 90a and 90b have a rectangular shape when viewed from a direction parallel to the longitudinal direction.

[0079] Each of the end covers 90a and 90b has a claw portion that engages with an opening provided at an end portion in the longitudinal direction of the main body 40. Each of the end covers 90a and 90b may be fastened to an end portion in the longitudinal direction of the main body 40 by a screw.

[0080] [Effects, etc.] As described above, the lighting fixture 10 includes the first light-emitting device 20, the second light-emitting device 30, the main body 40 including the first plate 41 having the first mounting surface 41a on which the first light-emitting device 20 is mounted and the second plate 42 having the second mounting surface 42a on which the second light-emitting device 30 is mounted, the first power supply device 50 supplying power to the first light-emitting device 20, the second power supply device 60 supplying power to the second light-emitting device 30, and a mounting member 70 interposed between the main body 40 and the wall 200 to mount the main body 40 to the wall 200. The mounting member 70 has a mounting surface 70a facing the wall 200, and the first mounting surface 41a and the second mounting surface 42a are each inclined with respect to the mounting surface 70a. The first power supply device 50 and the second power supply device 60 are disposed between the surface of the first plate 41 opposite the first mounting surface 41a and the surface of the second plate 42 opposite the second mounting surface 42a. The wall 200 is an example of a structure.

[0081] As a result, since the first power supply device 50 and the second power supply device 60 are disposed inside the main body 40, the lighting device 10 can be more easily miniaturized than a lighting device in which the first power supply device 50 and the second power supply device 60 are disposed outside the main body 40. In other words, a lighting device 10 that can be easily miniaturized is realized. Furthermore, the lighting device 10 can improve the heat dissipation of the first light-emitting device 20 and the second light-emitting device 30 compared to a lighting device in which the first light-emitting device 20 is disposed on one of the front and back surfaces of a single plate material and the second light-emitting device 30 is disposed on the other of the front and back surfaces of the single plate material.

[0082] Also, for example, the first mounting surface 41a is inclined so that the first light-emitting device 20 emits light toward the side opposite the wall 200, and the second mounting surface 42a is inclined so that the second light-emitting device 30 emits light toward the wall 200.

[0083] As a result, lighting fixture 10 can directly illuminate a space with the light emitted by first light-emitting device 20 and indirectly illuminate a space with the light emitted by second light-emitting device 30.

[0084] For example, the lighting device 10 further includes a first light-transmitting portion T1 that transmits light emitted by the first light-emitting device 20, a second light-transmitting portion T2 that transmits light emitted by the second light-emitting device 30, and a cover 80 that includes a light-blocking portion. The external area of ​​the first light-transmitting portion T1 is larger than the external area of ​​the second light-transmitting portion T2.

[0085] This allows the light emitted by the first light emitting device 20 to illuminate a wide area of ​​space, and the light emitted by the second light emitting device 30 to illuminate a narrower area.

[0086] Furthermore, for example, the cover 80 has a first flat plate portion 81 facing the first light-emitting device 20 and including a first light-transmitting portion T1, a second flat plate portion 82 facing the second light-emitting device 30 and including a second light-transmitting portion T2 and a light-shielding portion, and a third flat plate portion 83 including a light-shielding portion connecting the first flat plate portion 81 and the second flat plate portion 82. When viewed from a direction perpendicular to the second flat plate portion 82, the light-shielding portion included in the second flat plate portion 82 overlaps with the LED element 32 included in the second light-emitting device 30. The LED element 32 is an example of a light-emitting element.

[0087] This can prevent the user from looking directly at the LED element 32 of the second light emitting device 30.

[0088] Furthermore, for example, the main body 40 has a plurality of protrusions 41b and protrusions 42b that come into contact with the cover 80.

[0089] This allows the main body 40 and the cover 80 to come into point contact, thereby suppressing abnormal noise that would be generated by contact between the main body 40 and the cover 80 if the main body 40 or the cover 80 were to thermally expand.

[0090] Also, for example, the lighting device 10 is elongated, and the first plate 41 includes a groove portion extending in the longitudinal direction of the lighting device 10, and an opening or notch 45 is provided at the longitudinal end of the groove portion.

[0091] As a result, when a foreign object such as a dead insect gets in between the first plate 41 and the cover 80, the foreign object can be dropped into the inside of the main body 40 through the notch 45 by tilting the main body 40 without disassembling the lighting fixture 10.

[0092] Furthermore, for example, lighting fixture 10 is elongated and further includes a light bulb 75 disposed on the surface of mounting member 70 facing main body 40. The optical axis of light bulb 75 is inclined with respect to the longitudinal direction of lighting fixture 10 so that light bulb 75 emits light toward second plate 42.

[0093] This makes it possible to increase the amount of light emitted toward the second plate 42 even when it is not possible to position the light bulb 75 so that its optical axis is parallel to the Z-axis direction. In other words, it is possible to increase the efficiency with which light emitted by the light bulb 75 is used.

[0094] Also, for example, the second plate 42 is provided with an opening 42c or a notch through which the light emitted by the light bulb 75 passes.

[0095] This allows the amount of light emitted from the bulb 75 to the outside of the lighting fixture 10 to be increased.

[0096] Furthermore, for example, lighting fixture 10 further includes reflector 76, which is disposed on the surface of mounting member 70 facing main body 40, and which reflects light emitted by bulb 75 toward second plate 42.

[0097] This makes it possible to increase the amount of light emitted toward the second plate 42 side.

[0098] (Other embodiments) Although the embodiments have been described above, the present invention is not limited to such embodiments.

[0099] For example, although the lighting fixtures in the above embodiments are elongated, the lighting fixtures may have any shape. Furthermore, the use of the lighting fixtures is not particularly limited, and the lighting fixtures may be installed in, for example, hotel rooms.

[0100] Furthermore, in the above embodiment, the light emitting device is an SMD structure light emitting device, but it may also be a COB (Chip On Board) structure light emitting device. In a COB structure light emitting device, an LED chip is used as a light emitting element, and the LED chip is directly mounted on a substrate and encapsulated with a translucent resin material containing phosphor particles. The light emitting device may also be a remote phosphor type light emitting device having an LED chip and a resin member containing phosphor particles arranged at a position separate from the LED chip.

[0101] Furthermore, the light emitting element is not limited to an LED chip or an element using an LED chip. For example, a solid-state light emitting element other than an LED chip, such as a semiconductor laser or an organic EL (Electro Luminescence), may be used as the light emitting element.

[0102] Furthermore, as long as they do not deviate from the spirit of the present invention, various modifications that a person skilled in the art may make to this embodiment, or forms constructed by combining components from different embodiments, may also be included within the scope of one or more aspects. [Explanation of symbols]

[0103] 10 Lighting fixtures 20 First Light-Emitting Device 21, 31 board 22, 32 LED element (light-emitting element) 30 Second light-emitting device 40 Main body 41 First Plate 41a First mounting surface 41b, 42b protrusion 42 Second Plate 42a Second mounting surface 42c aperture 45 Notch 50 First power supply 60 Second power supply 70 Mounting material 70a Mounting surface 75 light bulbs 76 Reflector 80 Cover 81 First flat plate part 82 Second flat plate part 83 Third flat plate part 200 Wall (Structure)

Claims

1. a mounting member that is attached to an installation surface; a main body portion detachably attached to the mounting member, the mounting member has an upper extension portion and a lower extension portion extending from a mounting portion attached to the installation surface to a front side opposite the installation surface, The main body portion has an elongated shape, the main body includes a plate detachably attached to the mounting member, a first light emitting device that irradiates light upward, and a second light emitting device that irradiates light downward toward the installation surface, When the first light emitting device and the second light emitting device are viewed from the front side, the first light emitting device and the second light emitting device do not overlap each other in the vertical direction, and a gap exists between them; the plate is fixed to the upper extension of the mounting member by a fastener; the main body has a second cover body in the shape of a rectangular plate that is long in a longitudinal direction and is located below the second light-emitting device, The second cover body is provided with a rib. Lighting fixtures.

2. the plate has, on an upper side, a front inclined portion that extends forward and is inclined downward toward the front, and a long side portion that also extends forward on a lower side; the first light-emitting device is disposed on the front inclined portion; the second light-emitting device is disposed on the long side portion, The fixing device is fixed from above.

10. The lighting fixture of claim 1.

3. The plate has a lower inclined portion extending rearward and downwardly behind the long side portion on which the second light-emitting device is arranged, 3. A lighting fixture according to claim 2.

4. The plate has a lower horizontal portion extending rearward from the lower inclined portion.

4. A lighting fixture according to claim 3.

5. the main body includes end cover bodies located on both sides of the plate in the longitudinal direction and a first cover body located on an upper side of the plate, the end cover body has a lid portion and an upper flange protruding portion protruding from a peripheral edge of the lid portion toward the plate, the upper flange protruding portion faces the first cover body when the end cover body is attached to the plate; The lighting fixture according to any one of claims 2 to 4.

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