JP6340723B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture, and more particularly to a lighting fixture that uses a light-emitting diode (LED) as a light source.

  Conventionally, lighting fixtures using light emitting diodes (LEDs) as light sources have been provided. For example, the lighting fixture described in Patent Document 1 can reduce the light amount loss of the LED while suppressing the glare of the light emitted from the LED.

  The lighting fixture of patent document 1 is provided with the light source which consists of several LED, the lighting fixture main body which installs the said light source, a lighting cover, and a reflector. The light source is installed on the lower surface of the luminaire body. The illumination cover is formed in a bottomed cylindrical shape that covers the light source, and a bottom plate portion is textured to diffuse light emitted from the light source. Note that the side wall portion of the lighting cover is not subjected to graining, and is formed so that light from the light source can be transmitted with high efficiency without being diffused. The reflector covers the lighting cover and is formed in a cylindrical shape having an inner diameter that increases downward, and reflects light transmitted from the side wall portion to an inner mirror surface and collects it on the work surface. Furthermore, since the side wall part of the said illumination cover is covered with the said reflector, the said light source cannot be visually recognized from a work surface. Therefore, the lighting fixture of patent document 1 is formed so that glare may be suppressed.

  Moreover, in the lighting fixture of patent document 1, since the light permeate | transmitted from the said side wall part with a high transmittance | permeability is reflected by the said reflector and is condensed on a work surface, light quantity loss can be reduced.

JP 2008-270096 A

  By the way, in the conventional example described in Patent Document 1, when the light amount (light flux) of the light source is increased, the transmittance of the bottom plate portion of the illumination cover must be lowered in order to suppress the occurrence of glare. However, when the transmittance is lowered, the light amount loss due to the transmission loss increases. Furthermore, the amount of light transmitted from the side wall portion of the illumination cover and reflected by the reflecting surface of the reflector increases, and glare is more likely to occur. That is, in the above conventional example, when the light amount of the light source is increased, it is difficult to suppress the occurrence of glare while suppressing the light amount loss.

  The present invention has been made in view of the above-described reasons, and an object thereof is to increase the amount of light while suppressing a decrease in glare and efficiency.

In order to solve the above-described problems, a lighting fixture of the present invention includes a fixture main body, a light source unit having a light source, a globe, a reflecting member, a power supply device, and a heat sink, and the light source unit includes the fixture main body. The glove is a member that suppresses the occurrence of glare by diffusing light and is formed on a cylindrical side wall and a bottom wall that protrudes outward And is attached to the instrument body so as to cover the light source unit, and the reflection member is a member that condenses the light transmitted through the globe on an irradiation surface, and is formed in a cylindrical shape, and the globe It mounted on the instrument body so as to cover the reflecting member is formed so as to protrude into the outside than the bottom wall of the globe, the power supply device, the light power is supplied from an external power source The heat sink is a member that dissipates heat generated by the light source, and is attached to a surface opposite to the irradiation surface of the light source unit, and the instrument body is formed in a box shape. In addition, a vent hole is provided on a top surface facing a bottom surface to which the light source unit is attached, and the power supply device is provided between the heat sink and the vent hole .

  The lighting fixture of the present invention has an effect that the amount of light can be increased while suppressing a decrease in glare and efficiency.

It is side surface sectional drawing which shows Embodiment 1 of the lighting fixture which concerns on this invention. It is a perspective view same as the above. It is side surface sectional drawing same as the above. 4A is a side sectional view when there is no reflective member, FIG. 4B is a side sectional view, FIG. 4C is a light distribution curve when there is no reflective member, and FIG. 4D is a light distribution curve. FIG. 5A is a side sectional view, FIG. 5B is a light distribution curve when the globe 3 in FIG. 5A is located in the lower stage, and FIG. 5C is a middle view of the globe 3 in FIG. FIG. 5D is a light distribution curve when the globe 3 in FIG. 5A is located in the upper stage. It is the perspective view which abbreviate | omitted a part which shows the principal part of a glove in the same as the above. 7A to 7E are explanatory views for explaining the moving procedure of the globe. It is side surface sectional drawing which showed Embodiment 3 of the lighting fixture which concerns on this invention, and abbreviate | omitted the reflection member. It is a disassembled perspective view which shows the principal part same as the above. FIG. 10A is a bottom view when the light source is located inside, FIG. 10B is a bottom view when the light source is located outside, and FIG. 10C is a light distribution curve when the light source is located inside. FIG. 10D is a light distribution curve when the light source is located outside. It is side surface sectional drawing which shows Embodiment 4 of the lighting fixture which concerns on this invention. It is a perspective view which shows the principal part same as the above. It is side surface sectional drawing which shows the comparative example same as the above. It is a perspective view which shows the comparative example same as the above.

Embodiments 1 to 4 of the lighting fixture according to the present invention will be described below in detail with reference to the drawings. However, in the present embodiment, a light-emitting diode (LED) is used as a light source, but a fluorescent lamp or the like may be used as a light source.
(Embodiment 1)
The lighting fixture of this embodiment is provided with the fixture main body 1, the light source unit 2, the globe 3, the reflection member 4, and the power supply device 5, as shown in FIG.1 and FIG.2. However, in the following description, unless otherwise specified, the vertical and horizontal directions of the lighting fixture are defined in FIG.

  The instrument body 1 is formed of a metal into a rectangular box shape having a circular opening on the bottom surface. However, the instrument body 1 is not necessarily limited to a rectangular box shape, and may be formed in a cylindrical box shape, for example. On the periphery of the opening of the instrument body 1, a stepped portion 11 is provided inward.

  The light source unit 2 includes a mounting plate 21, a plurality of light sources 22 (four in the illustrated example), and a heat sink 23. The mounting plate 21 is formed in a rectangular plate shape with a metal such as aluminum having high thermal conductivity. The light source 22 is formed of a light emitting diode and is attached to the lower surface of the attachment plate 21. Each light source 22 is attached so that it is the same distance from the center of the attachment plate 21 and the distance between the adjacent light sources 22 is equal. The heat sink 23 is formed of a metal such as aluminum so that a rectangular base and a plurality of heat sinks are arranged on the upper surface of the base. The heat sink 23 is attached to the upper surface of the attachment plate 21 and radiates heat generated from the light source 22. However, the shape of the mounting plate 21 may be, for example, a disk shape. Furthermore, the number and shape of the light sources 22 are not limited to the present embodiment. Moreover, the shape of the heat sink 23 is not limited to this embodiment.

  The globe 3 includes a cylindrical side wall 31 and a hemispherical bottom wall 32 made of a synthetic resin having translucency (for example, milky white polycarbonate resin). A bottom wall 32 is provided at the lower end of the side wall 31. A flange 33 is provided on the peripheral edge of the upper end of the side wall 31 so as to protrude perpendicularly outward with respect to the side wall 31. However, the shape and material of the globe 3 are not limited to this embodiment.

  The reflection member 4 is installed in the instrument main body 1 so as to cover the outer periphery of the globe 3 and is formed in a truncated cone shape whose diameter expands downward. Further, the reflection member 4 is formed to be longer downward than the bottom wall 32 of the globe 3 in a state of being attached to the instrument body 1. A cylindrical protrusion 41 is provided at the lower end of the reflecting member 4. The reflecting member 4 is mirror-finished on the inner side, and as shown in FIG. 3, the light transmitted through the globe 3 is reflected by the inner peripheral surface (reflecting surface) of the reflecting member 4 and irradiated downward.

  The power supply device 5 is configured to turn on the light source 22 by receiving power from an external power supply. The power supply device 5 has a rectangular box-shaped outer shell and is attached near the center of the top surface of the instrument body 1.

  The light source unit 2 is fixed from the inside to the bottom surface of the instrument body 1 so that the light source 22 is exposed from the opening of the instrument body 1. The globe 3 is attached to the instrument main body 1 such that the flange 33 is placed on the step portion 11 of the instrument main body 1.

  The light source unit 2, the globe 3, the reflecting member 4, and the power supply device 5 are preferably screwed to the instrument body 1.

  The light distribution of the lighting fixture of this embodiment is demonstrated with reference to FIG. The light distribution curves in FIGS. 4C and 4D represent light distribution curves viewed from the horizontal direction.

  When the reflecting member 4 is not attached to the instrument main body 1 (see FIG. 4A), the light distribution curve is spread in the lateral direction as shown in FIG. That is, the light transmitted through the globe 3 is diffused to suppress glare, but the illuminance immediately below the light source 22 is reduced.

  When the reflecting member 4 is attached to the instrument body 1 (see FIG. 4B), the light distribution curve is such that the light directly diffused by the globe 3 is concentrated on the reflecting member 4 so that the illuminance directly below increases, and FIG. In comparison, the irradiation range becomes narrower. That is, the light emitted from the light source 22 is diffused by the globe 3 to suppress glare. Further, since the light diffused by the globe 3 is reflected by the reflecting member 4, the light diffused in the lateral direction is efficiently and uniformly distributed downward as shown in FIG. 4D.

  By the way, when the output of the light source 22 is increased in accordance with the use of the lighting fixture, the luminance of the surface of the globe 3 is increased. Therefore, the brightness of the bottom wall 32 of the globe 3 is also increased, and glare is likely to occur. In this case, for example, if the reflecting member 4 is formed shorter than the bottom wall 32, the bottom wall 32 is directly viewed by the user over a wide range, and glare tends to occur. Therefore, when the reflecting member 4 is attached to the instrument main body 1 and is formed to be longer than the bottom wall 32, glare is generated by narrowing the range of direct viewing without weakening the output of the light source 22. Can be suppressed.

  The lighting fixture of this embodiment includes a fixture body 1, a light source unit 2 having a light source 22, a globe 3, and a reflecting member 4. The light source unit 2 is attached to one surface of the instrument body 1 such that the light source 22 faces outward. The globe 3 is a member that suppresses the occurrence of glare by diffusing light, and has a cylindrical side wall 31 and a bottom wall 32 formed in a curved surface protruding outward so as to cover the light source unit 2. It is attached to the instrument body 1. The reflection member 4 is a member that condenses the light transmitted through the globe 3 on the irradiation surface, is formed in a cylindrical shape, and is attached to the instrument body 1 so as to cover the globe 3. The reflecting member 4 is formed so as to protrude outward from the bottom wall 32 of the globe 3.

Therefore, in the lighting fixture of this embodiment, glare can be suppressed by diffusing the light from the light source 22 with the globe 3. Furthermore, the light fixture of this embodiment can irradiate the light of the light source 22 efficiently by the reflection member 4, and can irradiate. Further, since the reflecting member 4 is formed so as to protrude outward from the bottom wall 32 of the globe 3, the occurrence of glare can be suppressed by the reflecting member 4 even when the brightness of the globe 3 is increased.
(Embodiment 2)
Hereinafter, Embodiment 2 of the lighting fixture which concerns on this invention is demonstrated with reference to FIGS. However, in the following description, unless otherwise specified, the vertical and horizontal directions of the lighting fixture are defined in FIG. In addition, about the structure which is common in Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. Moreover, in Embodiment 1, the step part 11 was provided in the instrument main body 1, but in this embodiment, since the glove | globe 3 is supported by the glove support part 12 demonstrated later, the step part 11 is attached to the instrument main body 1. FIG. It may not be provided.

  The lighting fixture of this embodiment includes three globe support portions 12 that support the globe 3. The globe support portion 12 is formed in a quadrangular prism. The globe support portion 12 is provided with three support grooves 121 that support the globe 3 and protrusions 122. In the following description, when distinguishing three places, it is set as support groove 121A, support groove 121B, and support groove 121C from the top, and when not distinguishing, it is set as support groove 121. The support groove 121 is formed so as to open across three side surfaces, and is installed so that the surface that is not opened faces opposite to the opening of the instrument body 1. The protrusion 122 is formed so as to protrude toward the opening side of the instrument body 1 in order to limit the movement range when the globe 3 moves up and down.

  The glove support part 12 is installed near the periphery of the opening of the instrument body 1 and in the interior so that the distances between adjacent glove support parts 12 are equal. However, the number of globe support parts 12 is not limited to three.

  As shown in FIG. 6, three sets of first mounting grooves 331 and second mounting grooves 332 having different depths (dimensions in the radial direction) are provided on the flange 33 of the globe 3 so as to be adjacent to each other. The first mounting groove 331 and the second mounting groove 332 are formed so that the outer edge side of the flange 33 opens. The depth of the first mounting groove 331 is formed larger than the depth of the second mounting groove 332. The depth of the first mounting groove 331 is formed larger than the depth of the support groove 121 of the globe support part 12.

  By the way, as shown in FIG. 7A, the globe 3 is fitted with the support groove 121 (support groove 121B in the illustrated example) and the second mounting groove 332 of the flange 33, so that the flange 33 is sandwiched between the support grooves 121, and the globe is supported. Supported by part 12.

  Hereinafter, the procedure for moving the globe 3 in the vertical direction will be described with reference to FIG.

  First, the operator rotates the globe 3 clockwise to align the positions of the first mounting groove 331 and the support groove 121B. Since the depth of the first mounting groove 331 is formed to be greater than the depth of the support groove 121, the globe support portion 12 and the flange 33 do not overlap. Accordingly, the globe 3 is movable up and down (see FIG. 7B).

  Next, when moving the globe 3 to the lower position, the operator moves the globe 3 downward to align the positions of the support groove 121C and the first mounting groove 331 (see FIG. 7C).

  When the operator moves and holds the globe 3 to the upper position, the operator moves the globe 3 upward to align the positions of the support groove 121A of the globe support portion 12 and the first mounting groove 331 (see FIG. 7D). When the first mounting groove 331 and the support groove 121 </ b> A of the globe support portion 12 are aligned, the flange 33 hits the lower surface of the protrusion 122 and cannot be removed from the globe support portion 12.

  Finally, the operator turns the globe 3 counterclockwise to fit the second mounting groove 332 into the support groove 121A (121C). As a result, the flange 33 is sandwiched between the support grooves 121A (121C), and the globe 3 is supported at the upper support position (or the lower support position) of the globe support portion 12.

  The light distribution of the lighting fixture of this embodiment is demonstrated with reference to FIG. The light distribution curves in FIGS. 5B, 5C, and 5D represent light distribution curves viewed from the horizontal direction.

  The light distribution curve changes by moving the position of the globe 3 in the vertical direction. As shown in FIG. 5B, the light distribution curve in the case where the globe 3 is at the lower designated position, as shown in FIG. In the light distribution curve when the globe 3 is at the upper designated position, as shown in FIG. 5D, the irradiation range on the irradiation surface is narrowed (narrowed). As shown in FIG. 5C, the light distribution curve when the globe 3 is in the middle designated position is a light distribution curve intermediate between the light distribution curves of FIGS. 5B and 5D. That is, when the distance from the light source 22 is increased, the irradiation range is widened. Conversely, when both are close, the irradiation range is narrowed.

  The lighting fixture of the present embodiment preferably includes one or more globe support portions 12 that support the globe 3. The globe support part 12 is preferably configured to support the globe 3 at one support position selected from among a plurality of support positions (support grooves 121). The globe 3 is preferably configured to change the distance to the light source unit 2 for each of a plurality of support positions.

Therefore, in the lighting fixture of this embodiment, the irradiation range can be easily changed by changing the distance between the globe 3 and the light source 22.
(Embodiment 3)
Hereinafter, Embodiment 3 of the lighting fixture which concerns on this invention is demonstrated with reference to FIGS. 8-10. However, in the following description, unless otherwise specified, the vertical and horizontal directions of the lighting fixture are defined in FIG. In addition, about the structure which overlaps with Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. Moreover, in FIG. 8, illustration of the reflection member 4 is abbreviate | omitted.

  As shown in FIG. 9, the light source unit 2 includes a base 25, a plurality of light sources 22 (three in the drawing), and a support member 26.

  The base 25 is formed in a rectangular plate shape from metal or the like. The base 25 is provided with a movable recess 251 on the lower surface for limiting the movement range of the light source 22 (three places in the figure). As shown in FIG. 9, each movable recess 251 is formed in a fan shape and includes an outer peripheral surface 2511 and an inner peripheral surface 2512. The outer peripheral surface 2511 is a radially outer surface of the movable recess 251. The inner peripheral surface 2512 is an inner surface in the circumferential direction of the movable recess 251. However, the shape of the base 25 is not limited to this embodiment.

  The light source 22 includes an LED module 220 and a mounting substrate 221. Note that the side surfaces of the mounting substrate 221 are labeled with the first side surface 2211, the second side surface 2212, the third side surface 2213, and the fourth side surface 2214 in a clockwise direction when viewed from below. The electrode (anode) of the light source 22 is connected to the electrode (cathode) of the adjacent light source 22 by a lead wire 222 (see FIG. 10A). The light source 22 is connected to the power supply device 5 by a lead wire 223 and a lead wire 224. The three light sources 22 are connected in series to the power supply device 5 by lead wires 222, 223 and 224. The lead wires 223 and 224 are connected to the power supply device 5 through the wiring holes 252 and the wiring holes 264 described later.

  The support member 26 is formed in a disk shape from metal or the like. The support member 26 has through holes 261 (three places in the drawing) and wiring holes 264. The through-hole 261 is rectangular, and the short side surface is referred to as a first side surface 2611 and a third side surface 2613, and the long side surface is referred to as a second side surface 2612 and a fourth side surface 2614. The first side surface 2611 and the third side surface 2613 are formed to have substantially the same length as the first side surface 2211 of the light source 22. The second side surface 2612 and the fourth side surface 2614 are formed longer than the second side surface 2212 of the light source 22. The support member 26 is provided with a pair of holding pieces 262 facing the vicinity of the center of the second side surface 2612 of the through hole 261. The light source 22 is held by the holding piece 262 so as not to fall out of the through hole 261. However, the number and shape of the holding pieces 262 are not limited to the number and shape of the present embodiment. The light source 22 moves along the second side surface 2612 and the fourth side surface 2614 of the support member 26 from the center side to the outer periphery side and from the outer periphery side to the center side. The wiring hole 264 is opened at the center of the support member 26 and is arranged to line up with the wiring hole 252 in the vertical direction. The lead wires 223 and 224 pass from the lower side of the support member 26 through the wiring hole 264, further through the wiring hole 252 to the upper side of the base 25, and finally connected to the power supply device 5.

  The light source 22 is supported by the support member 26 so that the irradiation surface is exposed from the through hole 261 and the irradiation surface of the light source 22 is downward. The base 25 is installed such that the movable recess 251 is directed downward. The light sources 22 are housed in the movable recesses 251 of the base 25, respectively. The light source 22 is moved by the relative rotation of the base 25 and the support member 26. The light source 22 is moved in the radial direction through the through hole 261 of the support member 26. Further, the light source 22 is moved in the circumferential direction within the movable recess 251 of the base 25.

  By the way, it is preferable that the locking groove 333 is provided in the flange 33 of the globe 3 (three places in the drawing). The locking groove 333 is formed so as to open to the outer edge side of the flange 33. The support member 26 is provided with a locking claw 263 that protrudes downward at the outer edge. The locking claw 263 is locked with the locking groove 333 of the globe 3 so that the support member 26 is mechanically connected to the globe 3. When the globe 3 is rotated, the support member 26 is also interlocked with the globe 3. It is formed to rotate.

In the lighting fixture of this embodiment, the base 25 is fixed to the fixture body 1, and the light source 22 moves by rotating the globe 3.
In addition, the light distribution of the lighting fixture of this embodiment is demonstrated with reference to FIG. The light distribution curves in FIGS. 10B, 10C, and 10D represent light distribution curves viewed from the horizontal direction.

  When the operator rotates the globe 3 clockwise, the support member 26 rotates in conjunction with the globe 3 in the clockwise direction. The light source 22 moves from the first side surface 2611 toward the third side surface 2613 as the first side surface 2211 is pushed by the outer peripheral surface 2511 of the movable recess 251 of the base 25 and is guided by the second side surface 2612 of the through hole 261. Then, the light source 22 finally stops at a position closest to the center of the support member 26 as shown in FIG. 10A. At this time, the distance between the light sources 22 is reduced, and the irradiation range of the light distribution curve is narrowed (see FIG. 10C).

  Conversely, when the worker rotates the globe 3 counterclockwise, the support member 26 rotates counterclockwise in conjunction with the globe 3. The light source 22 is guided by the second side surface 2612 of the through-hole 261 from the third side surface 2613 toward the first side surface 2611 with the third side surface 2213 pushed by the inner peripheral surface 2512 of the movable recess 251 of the base 25. Moving. The light source 22 finally stops at the outermost position from the center of the support member 26 as shown in FIG. 10B. At this time, the distance between the light sources 22 is increased, and the irradiation range of the light distribution curve is increased (see FIG. 10D).

  That is, when the operator rotates the globe 3, the distance between the light sources 22 and the adjacent light sources 22 is changed.

  The light source unit 2 of the lighting fixture of the present embodiment preferably includes a plurality of light sources 22 and a support member 26 that supports the plurality of light sources 22. The support member 26 preferably supports the light source 22 so that the distance between the plurality of light sources 22 can be changed.

  Therefore, the lighting fixture of this embodiment can adjust light distribution by changing the distance between the light sources 22.

  Furthermore, the light source unit 2 of the lighting fixture of the present embodiment preferably includes a base 25. The base 25 is a plate-like member that limits the movement range of the light source 22, and preferably has a movable recess 251 corresponding to each light source 22. The light source 22 supported by the support member 26 is preferably accommodated in the movable recess 251. It is preferable that the support member 26 and the base 25 are relatively rotatable, and the light source 22 moves within the movable recess 251 in accordance with the rotation angle.

Therefore, in the lighting fixture of this embodiment, the distance between the adjacent light sources 22 is changed by rotating the globe 3, and the irradiation angle can be easily changed.
(Embodiment 4)
Hereinafter, Embodiment 4 of the lighting fixture which concerns on this invention is demonstrated with reference to FIGS. 11-14. However, in the following description, unless otherwise specified, the vertical and horizontal directions of the lighting fixture are defined in FIG. In addition, about the structure which overlaps with Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  Here, in the lighting fixture of Embodiment 1, as shown in FIG.13 and FIG.14, the vent hole 13 is provided in the right-and-left both sides of the power supply device 5 in the top | upper surface of the fixture main body 1. FIG. The air warmed by the heat radiation of the heat sink 23 is discharged outside the instrument body 1 through the vent hole 13. However, dust from the outside may enter the instrument main body 1 through the vent 13 and accumulate on the heat sink 23, and the heat dissipation function of the heat sink 23 may be deteriorated by the dust.

  Therefore, in the lighting fixture of this embodiment, the power supply device 5 is disposed between the vent 13 and the heat sink 23. The power supply device 5 is provided with a convex portion 51 on the side surface. The convex portion 51 is screwed to the side wall of the instrument body 1 with a screw 52.

  The vent 13 is opened in the top surface of the instrument body 1 above the power supply device 5. Furthermore, the vent 13 is formed to be rectangular and smaller than the top surface of the power supply device 5. However, the shape of the vent 13 is not limited to a rectangle.

  The lighting fixture of the present embodiment preferably includes the power supply device 5 and the heat sink 23. The power supply device 5 is preferably configured to turn on the light source 22 when power is supplied from an external power supply. The heat sink 23 is a member that radiates heat generated by the light source 22, and is preferably attached to a surface opposite to the irradiation surface of the light source unit 2. The instrument body 1 is preferably formed in a box shape. It is preferable to provide the vent hole 13 on the top surface facing the bottom surface to which the light source unit 2 is attached. The power supply device 5 is preferably provided between the heat sink 23 and the vent hole 13.

  Therefore, in the lighting fixture of this embodiment, it is possible to prevent dust from accumulating on the heat sink 23 while discharging the air heated by the heat radiation of the heat sink 23 from the vent hole 13.

DESCRIPTION OF SYMBOLS 1 Instrument body 2 Light source unit 22 Light source 3 Globe 31 Side wall 32 Bottom wall 4 Reflecting member

Claims (6)

An instrument body, a light source unit having a light source, a globe, a reflecting member, a power supply device, and a heat sink ;
The light source unit is attached to one surface of the instrument body so that the light source faces outward,
The globe is a member that suppresses the occurrence of glare by diffusing light, and has a cylindrical side wall and a bottom wall formed on a curved surface protruding outward, and covers the light source unit. Attached to the instrument body,
The reflection member is a member that condenses the light transmitted through the globe on an irradiation surface, is formed in a cylindrical shape, and is attached to the instrument body so as to cover the globe,
The reflecting member is formed to protrude outward from the bottom wall of the globe ,
The power supply device is configured to turn on the light source when power is supplied from an external power source,
The heat sink is a member that radiates heat generated by the light source, and is attached to a surface opposite to the irradiation surface of the light source unit,
The instrument body is formed in a box shape, and has a vent on the top surface facing the bottom surface to which the light source unit is attached,
The lighting apparatus, wherein the power supply device is provided between the heat sink and the vent hole .   It comprises one or more glove support parts that support the glove, and the glove support part is configured to support the glove at one support position selected from among a plurality of support positions, The lighting fixture according to claim 1, wherein the lighting fixture is configured to change a distance from the light source unit for each of the plurality of support positions.   The light source unit includes a plurality of the light sources and a support member that supports the plurality of light sources, and the support member supports the light sources so that a distance between the plurality of light sources can be changed. The lighting fixture according to claim 1.   The light source unit includes a base, and the base is a plate-like member that restricts a moving range of the light source, has a movable recess corresponding to each light source, and is supported by the support member. The housing is housed in the movable recess, the support member and the base are relatively rotatable, and the light source moves in the movable recess according to a rotation angle. Lighting fixtures.   The lighting apparatus according to claim 4, wherein the support member is mechanically connected to the globe and rotates in conjunction with rotation of the globe.   The lighting device according to claim 1, wherein the vent is formed only in a projection region of the power supply device on the top surface of the device main body.

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