JP6544679B2 - Light source unit and lighting apparatus using the same - Google Patents

Description

  The present invention relates to a light source unit and a luminaire using the same, and more particularly to a light source unit for illuminating a lighting space from above and a luminaire using the same.

  Conventionally, a so-called high ceiling lighting fixture is provided which is installed in a high ceiling building such as a gymnasium or a hall and illuminates the lighting space from above (see, for example, Patent Document 1). The lighting fixture described in Patent Document 1 includes a fixture body, four lamps, a power supply block, a mounting bracket, and the like.

  The lamp includes a lamp body, a light source block, a light distribution block, and the like. The light source block includes a light source unit, a feeder, a mounting spring, an insulating sheet, and the like. The light source unit has a ceramic substrate, a light source formed on the surface of the substrate, and a receptacle connector mounted on the surface of the substrate. The light source is composed of a plurality of light emitting diode chips mounted on a substrate, and a sealing member made of synthetic resin having a light transmitting property and a fluorescent material mixed therein.

  The light distribution block is composed of a reflective member, a translucent panel, and a waterproof member. In the reflecting member, a reflecting portion formed in a truncated cone shape with both ends open and an annular outer ring portion protruding outward from an opening edge on the light emission side of the reflecting portion are integrally formed of a metal plate material Ru. The translucent panel is formed in a disc shape from a translucent material such as acrylic resin, polycarbonate resin, or glass.

  In the instrument body, a circular bottom plate, a peripheral wall protruding upward from the periphery of the bottom plate, a pair of mounts to which mounting brackets are attached, and the like are integrally formed of aluminum or an aluminum alloy. In the bottom plate of the instrument body, four window holes are penetrated so as to be aligned in the circumferential direction of the bottom plate. Then, the four lamps are attached to the bottom plate of the tool body so as to close the window and emit light downward through the window.

Unexamined-Japanese-Patent No. 2014-26804

  When a highly directional light emitting diode chip is used as a light source as in the lighting apparatus described in Patent Document 1 described above, a building user may feel glare when looking directly at the lighting apparatus. Therefore, such a high ceiling light fixture can be retrofitted with a diffusion panel to reduce glare.

  However, when the diffusion panel is attached to the luminaire, although the diffusion panel can reduce glare, a part of the light transmitted through the light transmission panel is blocked by the peripheral portion of the diffusion panel, and the illumination space is There was a possibility that the irradiation efficiency would decrease.

  In addition, the diffusion panel has a structure in which it is attached with a gap between it and the light transmission panel, so that even if dust etc. is accumulated in this gap, part of the light transmitted through the light transmission panel is dust etc. And the irradiation efficiency to the illumination space may be reduced.

  This invention is made in view of the said problem, and it aims at providing the light source unit which made it difficult to reduce the irradiation efficiency to illumination space, and a lighting fixture using the same, reducing glare.

A light source unit according to the present invention includes a light source and a translucent material, and a front surface facing the light source and a side surface protruding from the periphery of the front surface in a direction crossing the front surface and crossing the front surface. And a cover arranged to cover the light source, wherein the cover is formed on the inner surface of the front portion so that the light diffusing property of the front portion is higher than that of the side portion. A plurality of first embossments are formed, and a second emboss is formed on an inner surface of the side surface portion, and an inner surface of a connecting portion connecting the side surface portion and the front surface portion has a curved surface shape A third emboss is formed such that the emboss depth gradually increases from the portion toward the front surface, and a plurality of embossments are formed on the inclined surfaces of each of the plurality of first emboss. I assume.

  A lighting fixture of the present invention is characterized by including the above-described light source unit and a power supply unit for supplying power to the light source unit.

  The light source unit of the present invention can make it difficult to reduce the irradiation efficiency to the illumination space while reducing glare.

  The lighting fixture of the present invention can make it difficult to reduce the irradiation efficiency to the lighting space while reducing glare.

It is a whole perspective view of the lighting fixture concerning the embodiment of the present invention. It is another whole perspective view of the lighting fixture concerning the embodiment of the present invention. It is an exploded perspective view of a light source unit concerning an embodiment of the present invention. It is another disassembled perspective view of the light source unit which concerns on embodiment of this invention. It is a whole perspective view of a light source unit concerning an embodiment of the present invention. 6A is a front view of a cover used in a light source unit according to an embodiment of the present invention, FIG. 6B is a right side view, and FIG. 6C is a bottom view. FIG. 7A is a cross-sectional view of a cover used in a light source unit according to an embodiment of the present invention, and FIG. 7B is a detailed view of a portion X.

  The light source unit 1 and the lighting fixture 10 according to the embodiment of the present invention will be specifically described with reference to the drawings. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiments. Therefore, even if it is a range other than this embodiment, various changes can be made according to design etc. as long as it does not deviate from the technical concept according to the present invention.

  In the following description, unless otherwise noted, the upper, lower, left, and right, front and back directions in FIG. 1 are defined. Therefore, in the present embodiment, the direction in which the light source units 1 are arranged is the front-rear direction, the direction in which the heat sinks 32 of the heat dissipation members 3 constituting the light source unit 1 are arranged is the left-right direction. The direction orthogonal to these directions is the up-down direction. However, these directions do not define the mounting directions of the light source unit 1 and the lighting apparatus 10.

  The lighting fixture 10 according to the present embodiment is a so-called lighting fixture for high ceiling, which is installed in a high ceiling building such as a gymnasium or a hall, for example, and illuminates the lighting space from above. As shown in FIGS. 1 and 2, the lighting fixture 10 includes a plurality (two in the present embodiment) of light source units 1 and a power supply unit 7. Moreover, it is preferable that the lighting fixture 10 further includes a pair of connection members 11, an arm 12, and a pair of arm attachment members 13.

  The light source unit 1 includes an LED module 2 (light source) and a cover 6 as shown in FIGS. 3 and 4. Preferably, the light source unit 1 further includes a heat dissipation member 3, a lens block 4, and a seal member 5.

  As shown in FIGS. 3 and 4, the LED module 2 has a mounting substrate 20 and a plurality of (22 in FIG. 3) light emitting diodes 21 (hereinafter referred to as “LEDs 21”). The mounting substrate 20 is formed of a rectangular flat aluminum substrate. Each of the LEDs 21 is a package-type white LED which is conventionally known. These LEDs 21 are mounted side by side vertically and horizontally on the lower surface of the mounting substrate 20.

  Also, on the lower surface of the mounting substrate 20, receptacle connectors electrically connected to the respective LEDs 21 via the conductors for wiring formed on the lower surface of the mounting substrate 20 are mounted. Furthermore, circular screw insertion holes 200 are provided at the four corners of the mounting substrate 20, respectively.

  The heat dissipating member 3 has a base portion 30, a pair of edge portions 31, and a plurality of heat dissipating plates 32, as shown in FIG. 3 and FIG. In addition, it is preferable that the base part 30, the edge part 31, and the heat sink 32 are formed with the material excellent in thermal conductivity, such as aluminum alloy, for example. The base portion 30 is formed in a rectangular flat plate shape. A plurality of screw holes (female screws) 300 are provided on the lower surface of the base portion 30.

  Each of the pair of edge portions 31 has a rectangular parallelepiped shape whose longitudinal direction is the longitudinal direction, and is integrally formed with the base portion 30 at the left end edge or the right end edge of the base portion 30. The thickness (the width in the vertical direction) of the edge portion 31 is formed sufficiently larger than the thickness of the base portion 30.

  One screw hole (female screw) 310 is provided on each end surface of the edge portion 31 in the front-rear direction. Further, a plurality of screw holes (female screws) 311 are provided on the outer side surface of the edge portion 31 in the left-right direction at intervals along the front-rear direction. Furthermore, on the upper surface of the edge portion 31, two screw holes (female screws) 312 are provided so as to be aligned in the front-rear direction.

  Each of the plurality of heat sinks 32 is in the form of a rectangular flat plate whose longitudinal direction is the longitudinal direction, and is integrally formed with the base portion 30 on the upper surface of the base portion 30. In addition, these heat sinks 32 are arrange | positioned at intervals in the left-right direction.

  As shown in FIGS. 3 and 4, in the lens block 4, the block main body 40 and the plurality of lenses 41 are integrally formed of a translucent synthetic resin material such as an acrylic resin. The block main body 40 has a rectangular flat bottom plate 400 and four side plates 401 projecting upward from the periphery of the bottom plate 400. The plurality of lenses 41 are formed in a row on the top surface of the bottom plate 400 in an integrated manner. In addition, these lenses 41 are provided in the number and the position corresponding to each LED21 of the LED module 2 one to one.

  Fixing pieces 402 are integrally formed on the side plates 401 and the left side plate 401 in the front-rear direction. These fixing pieces 402 project upward from the upper end edge at the central portion in the longitudinal direction of each side plate 401. In addition, these fixing pieces 402 are formed in a C shape when viewed from the vertical direction.

  The sealing member 5 is formed in a rectangular frame shape, for example, by silicone rubber. At the four corners of the seal member 5, protrusions 50 each having a shape similar to the outer shape of the bolt project downward. Further, on four sides of the seal member 5, three circular screw insertion holes 51 are provided at intervals of three. Furthermore, circular through holes 52 are provided at intervals of two each on two sides in the left-right direction of the seal member 5.

  The cover 6 has a cover main body 60 and an outer collar 61 as shown in FIGS. 6A to 6C. The cover main body 60 and the shell 61 are integrally formed of a translucent synthetic resin material such as polycarbonate resin.

  The cover main body 60 is formed in a rectangular box shape whose upper surface is opened by a rectangular flat plate-like front surface portion 600 and four side surface portions 601 projecting upward from the peripheral edge of the front surface portion 600. At the four corners of the front surface portion 600, protrusions 6001 that respectively project downward are provided. The front surface portion 600 and the side surface portions 601 are integrally connected via a connecting portion 602 curved in an arc shape.

  The outer collar 61 is formed in a rectangular frame shape when viewed from the upper and lower direction, and protrudes outward from the open end edge of the cover main body 60. Also, circular fitting holes 611 are provided at the four corners of the outer collar 61, respectively. Furthermore, circular screw insertion holes 610 are provided at intervals of three on each of the four sides of the outer collar 61. Further, two protrusions 612 are provided on the upper surface of the two sides in the left-right direction of the outer collar 61 at intervals.

  As shown in FIGS. 1 and 2, the power supply unit 7 includes a power supply block and a case 71 for housing the power supply block.

  The power supply block includes a power conversion circuit that converts power supplied from the outside (for example, AC power supplied from a commercial power supply) into power (DC power) required for the two light source units 1. The power conversion circuit includes, for example, a full-wave rectifier, a power factor correction circuit (boost chopper circuit), a DC / DC converter (buck chopper circuit), and the like. The power supply block is configured by mounting a large number of circuit components constituting the power conversion circuit on the surface of the printed wiring board.

  Further, an output cable provided with a plug connector at its tip is electrically connected to the printed wiring board. Then, the output cable is drawn out of the case 71 and the plug connector is connected to the receptacle connector of the light source unit 1 to electrically connect the power source unit 7 (power source block) and the light source unit 1.

  As shown in FIGS. 1 and 2, the case 71 includes a bottom plate 72, a top plate 73, and four side plates (only the first side plate 74 and the fourth side plate 77 are shown in FIGS. 1 and 2). Ru. The bottom plate 72 is formed of a metal plate such as a stainless steel plate in the shape of a rectangular plate long in the front-rear direction. However, the strength of the bottom plate 72 is improved by bending the peripheral portion upward. Further, in the central portion of the bottom plate 72, a plurality of through holes 720 arranged vertically and horizontally are provided.

  The top plate 73 is formed of a metal plate such as a stainless steel plate in the shape of a rectangular plate long in the front-rear direction. At the front end edge of the top plate 73, a rectangular flat first side plate 74 is formed to hang downward. The first side plate 74 is provided with a plurality of through holes 740 arranged vertically and horizontally.

  Further, at the rear end edge of the top plate 73, a rectangular flat second side plate is formed to hang downward. Like the first side plate 74, the second side plate is provided with a plurality of through holes arranged in rows and columns. Furthermore, at the left end edge and the right end edge of the top plate 73, a third side plate and a fourth side plate 77 are formed so as to hang downward. The third side plate and the fourth side plate 77 are formed in the shape of a rectangular flat plate of the same size.

  As shown in FIG. 1 and FIG. 2, the connecting member 11 is formed of a strip-like metal plate (for example, a stainless steel plate etc.), and the first connecting portion 110 and two second positions located on both sides of the first connecting portion 110. And 2 connecting portion 111. The first connection portion 110 protrudes in the thickness direction (left and right direction) with respect to the second connection portions 111 on both sides. The first connecting portion 110 is provided with three screw insertion holes. Further, each second connection portion 111 is provided with two screw insertion holes.

  The connection member 11 is screwed into the screw holes 311 provided in the edge portion 31 of the heat dissipation member 3 by screwing the screws 112 passed through the screw insertion holes of the first connection portion 110 and the second connection portions 111. It is attached to the light source unit 1 (see FIGS. 1 and 2).

  The arm mounting member 13 has a fixing portion 130, a pair of mounting portions 131, and a bearing portion 132, as shown in FIGS. The fixing portion 130, the mounting portion 131, and the bearing portion 132 are preferably integrally formed by, for example, aluminum die casting.

  The fixing portion 130 is formed in the shape of a horn having an open lower side. The pair of attachment portions 131 is formed in a vertically truncated conical shape, and a screw hole (female screw) is formed at a tip end portion (upper end portion). The bearing portion 132 is formed in a cylindrical shape, is disposed between the pair of attachment portions 131, and is connected to the attachment portions 131 and the fixing portion 130. Further, in the bearing portion 132, two screw holes are provided side by side in the vertical direction.

  As shown in FIGS. 1 and 2, the arm 12 is integrally formed of a fixing plate 120 and a pair of support plates 121 projecting downward from both ends in the left-right direction of the fixing plate 120 by a metal plate. At the right end of the fixing plate 120, a circular bolt insertion hole 1201 is provided. Further, at the left end of the fixing plate 120, an oblong bolt insertion hole 1202 is provided. A circular screw insertion hole and an arc-shaped screw insertion hole 1211 are provided in the vertical direction at the tip (lower end) of each support plate 121.

  The arm 12 is screwed into the two screw holes provided in the bearing portion 132 by screws 122 respectively passing through the two screw insertion holes of each support plate 121, whereby two light source units connected by the connecting member 11 Support 1 rotatably. Since the screw insertion hole 1211 is formed in an arc shape, the angle of the arm 12 can be changed by loosening the screw 122.

  Next, a procedure for assembling the light source unit 1 of the present embodiment will be described.

  First, the operator places the LED module 2 on the lower surface of the base portion 30 of the heat dissipation member 3 and then screws the screw 22 passed through the screw insertion hole 200 into the screw hole 300 of the base portion 30 to Fix it to 3.

  Subsequently, the operator puts the lens block 4 on the LED module 2 and then screws the screw passed through the groove of each fixing piece 402 of the lens block 4 into the screw hole 300 of the base portion 30 to release the lens block 4 Fix it to 3. At this time, each lens 41 of the lens block 4 is disposed below the corresponding LED 21.

  Next, the worker fits the four projections 50 of the sealing member 5 into the fitting holes 611 provided at the four corners of the outer collar 61 of the cover 6 to attach the sealing member 5 to the cover 6. At this time, the protrusion 612 protruding upward from the upper surface of the outer collar 61 is inserted into the through hole 52 of the seal member 5.

  Then, after covering the lens block 4 with the cover 6 to which the sealing member 5 is attached, the operator screws the screw 62, which is passed through the screw insertion hole 610 of the outer collar 61, into the screw hole 300 of the base portion 30, It is fixed to the heat dissipation member 3. The light source unit 1 of the present embodiment is assembled by the above procedure (see FIG. 5).

  Furthermore, the procedure of assembling the lighting fixture 10 of this embodiment is demonstrated.

  First, the worker arranges the two light source units 1 in the front-rear direction, and fits the edge portion 31 of the heat radiation member 3 of both light source units 1 and the fixing portion 130 of each arm attachment member 13. Subsequently, the worker superimposes the connecting member 11 on the fixing portion 130 and the edge portions 31 on both sides so as to align the fixing portion 130 with the step of the first connecting portion 110.

  Then, the operator screws the second connection parts 111 on both sides of the connection member 11 to the edge 31 of each light source unit 1 and further fixes the fixing part 130 and the first connection part 110 to the edge of each light source unit 1 Screw on 31 Thereby, the two light source units 1 are connected by the connecting member 11.

  Next, the worker attaches the power supply unit 7 to the pair of arm attachment members 13. At this time, the operator screws the screw, which is inserted through the through hole provided in the bottom plate 72 of the case 71 of the power supply unit 7, into the screw hole of each mounting portion 131, so that the power supply unit 7 has a pair of arm mounting members Attached to 13. After that, the worker performs the connection work of the output cable pulled out of the power supply unit 7.

  Finally, the operator screw the screw 122, which is passed through the two screw insertion holes of the support plate 121, into the two screw holes of the bearing portion 132 of the arm mounting member 13, respectively, to thereby connect the arm 12 to the arm mounting member 13. Attach. According to the above procedure, the lighting fixture 10 of the present embodiment is assembled (see FIGS. 1 and 2).

  The lighting apparatus 10 assembled according to the above-described procedure is installed on the ceiling of a building by tightening a nut on a pair of suspension bolts passed through the bolt insertion holes 1201 and 1202 of the arm 12.

  By the way, in the conventional lighting fixture, since the diffusion panel for reducing glare is attached, a part of the light which permeate | transmitted the translucent panel will be interrupted by the peripheral part of a diffusion panel, and the irradiation efficiency to illumination space is carried out Was a problem. In addition, the diffusion panel has a structure in which it is attached with a gap between it and the light transmission panel, so that even if dust etc. is accumulated in this gap, part of the light transmitted through the light transmission panel is dust etc. There is a problem that the irradiation efficiency to the illumination space is reduced.

  So, in the lighting fixture 10 of this embodiment, in order to solve the above-mentioned problem, the following composition is adopted. FIG. 7A is a cross-sectional view of the cover 6, and FIG. 7B is a detailed view of a portion X.

  As shown in FIG. 7B, a plurality of first bumps 6002 are formed on the inner surface of the front surface portion 600 of the cover main body 60. Further, as shown in FIG. 7B, a plurality of second bumps 6011 are formed on the inner surface of the side surface portion 601 of the cover main body 60. The first grain 6002 has a deeper grain depth than the second grain 6011.

  Note that each of the plurality of first textures 6002 may have the same texture depth or may have different texture depths. Also, each of the plurality of second embossings 6011 may have the same embossing depth or may have embossing depths different from one another. Here, the emboss refers to the unevenness formed on the inner surface of the front surface portion 600 and the side surface portion 601. The emboss depth means the height from the bottom of the recess to the tip of the protrusion.

  Of the light emitted from the LED module 2, the light directed to the front surface 600 is diffused by the first grain 6002. Therefore, glare can be reduced as compared to the case where the first grain 6002 is not formed on the inner surface of the front surface portion 600. Further, as shown in FIG. 7B, when a plurality of bumps 6003 are formed on the inclined surface of each first bump 6002, the light from the LED module 2 to the front portion 600 can be further diffused, and glare is further enhanced. It can be effectively reduced.

  Further, of the light emitted from the LED module 2, the light directed to the side surface portion 601 is diffused by the second grain 6011. The ceiling surface can be illuminated by irradiating part of the light transmitted through the side portion 601 upward. In particular, when the grain depth of the second grain 6011 is shallow compared to the first grain 6002 as in the present embodiment, the same grain depth for the first grain 6002 and the second grain 6011 is used. The ceiling surface can be illuminated more brightly in comparison.

  Furthermore, in the lighting fixture 10 of the present embodiment, it is not necessary to use a diffusion panel as in the conventional lighting fixture, and the light emitted from the LED module 2 is not blocked by the diffusion panel. There is also an advantage that the irradiation efficiency of That is, according to the light source unit 1 and the lighting fixture 10 of the present embodiment, it is possible to make it difficult to reduce the irradiation efficiency to the illumination space while reducing glare.

  Moreover, in the lighting fixture 10 of this embodiment, in the cover 6, the front surface part 600 and each side surface part 601 are integrally connected via the connecting part 602, and as shown to FIG. 7B, on the inner surface of the connecting part 602. Preferably, a third grain 6021 is formed. The third grain 6021 is formed such that the grain depth gradually increases from the side surface portion 601 to the front surface portion 600. As described above, by forming the third grain 6021 on the inner surface of the connecting portion 602, it is possible to suppress an abrupt change in the amount of light transmitted through the cover 6 in the connecting portion 602.

  By the way, in the lighting fixture 10 of this embodiment, height dimension h1 (refer FIG. 7A) in the up-down direction of the cover 6 is large compared with the light transmission panel of the conventional lighting fixture. In other words, the distance from the LED 21 of the LED module 2 to the front portion 600 of the cover 6 is long. As a result, the light diffusivity can be improved as compared to the case where the height dimension is set to the same as that of the conventional light transmitting panel.

  In addition, for example, when placing the cover 6 on a work bench, the front portion 600 is often placed downward, but as in the present embodiment, the projection 6001 is provided on the lower surface of the front portion 600 of the cover 6. Providing such a configuration has an advantage that the lower surface of the front surface portion 600 is less likely to be damaged.

  In addition, in this embodiment, although the case where the lighting fixture 10 was a lighting fixture for high ceilings was demonstrated to the example, lighting fixtures, such as a road lamp and a street lamp, for example may be used. Moreover, in this embodiment, although the case where the light source unit 1 was two was demonstrated to the example, the light source unit 1 may be three or more. Furthermore, in the present embodiment, the LED module 2 is used as a light source, but the light source is not limited to the LED, and may be, for example, a halogen lamp.

  As described above, the light source unit 1 according to the present embodiment includes the light source (the LED module 2) and the cover 6 made of the light transmitting material. The cover 6 is formed in a box shape with a front surface 600 facing the light source and a side surface 601 projecting to the light source side in a direction crossing the front surface 600 from the peripheral edge of the front surface 600 and arranged to cover the light source . Further, in the cover 6, the first grain 6002 is formed on the inner surface of the front surface portion 600 so that the light diffusibility of the front surface portion 600 is higher than that of the side surface portion 601. 6011 is formed.

  According to this configuration, the light emitted from the light source is diffused by the first grain 6002 formed on the front face 600, so glare is reduced compared to the case where the first grain 6002 is not formed on the front face 600. be able to. In addition, since the light emitted from the light source is not blocked by the peripheral portion of the diffusion panel as in the conventional lighting fixture, it is possible to make it difficult to reduce the irradiation efficiency to the illumination space. Furthermore, since the light diffusivity of the side surface portion 601 is lower than that of the front surface portion 600, the ceiling surface can be brightly illuminated compared to the case where the light diffusivity is the same between the front surface portion 600 and the side surface portion 601. .

  Further, as in the light source unit 1 of the present embodiment, it is preferable that the first grain 6002 has a deeper grain depth than the second grain 6011.

  According to this configuration, the light emitted from the light source is diffused by the first grain 6002 formed on the front face 600, so glare is reduced compared to the case where the first grain 6002 is not formed on the front face 600. be able to. In addition, since the light emitted from the light source is not blocked by the peripheral portion of the diffusion panel as in the conventional lighting fixture, it is possible to make it difficult to reduce the irradiation efficiency to the illumination space. Furthermore, since the light diffusivity of the side surface portion 601 is lower than that of the front surface portion 600, the ceiling surface can be brightly illuminated compared to the case where the light diffusivity is the same between the front surface portion 600 and the side surface portion 601. .

  Further, as in the light source unit 1 of the present embodiment, the inner surface of the connecting portion 602 connecting the side surface portion 601 and the front surface portion 600 is a curved surface shape, and the embossing depth is from the side surface portion 601 to the front surface portion 600. Preferably, a third grain 6021 is formed to be gradually deeper.

  According to this configuration, the third grain 6021 is formed in the connecting portion 602 so that the grain depth gradually increases from the side surface portion 601 to the front surface portion 600, so the amount of light transmitted through the cover 6 is Abrupt change can be suppressed by the connecting portion 602.

  The lighting apparatus 10 of the present invention includes a light source unit 1 and a power supply unit 7 for supplying power to the light source unit 1.

  According to this configuration, by using the light source unit 1 described above, it is possible to make it difficult to reduce the irradiation efficiency to the illumination space while reducing glare.

1 light source unit 2 LED module (light source)
Reference Signs List 6 cover 7 power supply unit 10 lighting fixture 600 front surface portion 601 side surface portion 602 connecting portion 6002 first grain 6011 second grain 6021 third grain

Claims (3)

Light source,
The light source is made of a translucent material, and is formed in a box shape by a front surface facing the light source and a side surface protruding toward the light source in a direction crossing the front surface from the peripheral edge of the front surface. And a cover disposed to cover the
In the cover, a plurality of first embossings are formed on the inner surface of the front side so that the light diffusing property of the front side is higher than that of the side surface, and a second embossing is formed on the inner side of the side Is formed ,
The inner surface of the connecting portion connecting the side surface portion and the front surface portion is a curved surface, and a third emboss is formed such that the embossing depth gradually increases from the side surface portion toward the front surface portion. ,
A light source unit , wherein a plurality of embossings are formed on the inclined surface of each of the plurality of first embossings . The light source unit according to claim 1, wherein each of the plurality of first embossings has a deeper embossing depth than the second embossing. A light fixture comprising the light source unit according to claim 1 and a power supply unit for supplying power to the light source unit.

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