JP2015167089A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which obtains light distribution over an entire periphery of the lateral side of the device body.SOLUTION: A lighting device 1 includes light emitting elements in a device body 3. The device body 3 includes a columnar body 22. The multiple light emitting elements are attached to a side surface of the columnar body 22 in a circumferential direction, and a frustum shaped reflection mirror 17 is provided at a low part of the columnar body 22. A planar reflection plate 18 is provided at an upper part of the columnar body 22.

Description

  The present invention relates to a lighting apparatus including a light emitting element.

  2. Description of the Related Art Conventionally, lighting fixtures that include a light source such as a lamp in the fixture body are known. In recent years, various lighting fixtures including light-emitting elements such as LEDs having characteristics such as small size, low power consumption, and long life have been proposed as the brightness of light-emitting elements increases (see, for example, Patent Document 1). . In this lighting fixture, a light emitting element is attached around a columnar support substrate having reflectivity.

JP 2012-181992 A

In particular, in a lighting fixture used outdoors, it is necessary to perform uniform illumination over the periphery of the side of the fixture body.
However, since light emitting elements such as LEDs have strong directivity, the above-described conventional configuration cannot obtain uniform light distribution.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the lighting fixture which can obtain the light distribution over the perimeter of the side of a fixture main body.

  In order to achieve the above-described object, the present invention provides a lighting fixture including a light-emitting element in a fixture body, wherein the fixture main body includes a column body, and a plurality of light-emitting elements are provided in a circumferential direction on a side surface of the column body. Mounting, a frustum-like reflecting mirror is provided at the lower part of the column body, and a planar reflector is provided at the upper part of the column body.

In the above-described configuration, the light-emitting elements may be arranged in a line, and light may be emitted obliquely downward of the instrument body.
In the above-described configuration, a globe is provided around the light emitting element, the optical axis of the light emitting element is directed to substantially the center in the vertical direction of the globe, the direct light emitted from the light emitting element to the globe, and a frustum shape A prism portion that radiates the reflected light reflected by the reflecting mirror and the planar reflecting plate in a horizontal direction may be formed.

  According to the present invention, the instrument main body includes a column body, a plurality of light emitting elements are attached to a side surface of the column body in the circumferential direction, a frustum-like reflector is provided at a lower portion of the column body, and the column body is provided. Since the flat reflecting plate is provided on the upper part, the entire periphery of the side of the instrument body can be illuminated.

It is a perspective view which shows the outdoor lighting fixture which concerns on embodiment of this invention. It is a figure which shows an outdoor lighting fixture, (A) is a top view, (B) is a front view, (C) is a bottom view. It is a front view which shows the outdoor lighting fixture which visualized the inside of a glove. It is a disassembled perspective view which shows the outdoor lighting fixture. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. FIG. 7 is a plan view showing the outdoor lighting fixture with the lid removed. It is a perspective view which cuts some and shows an outdoor lighting fixture. It is a perspective view which shows a shade from the downward direction. It is a perspective view which shows the shade which removed one reflecting plate. It is a perspective view which shows the shade which removed one reflector and the fixing tool. It is sectional drawing which shows a globe.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, as an example of a lighting fixture, an outdoor lighting fixture used outdoors will be described.
Drawing 1 is a perspective view showing the outdoor lighting fixture concerning an embodiment. 2A and 2B are diagrams illustrating an outdoor lighting device, in which FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a bottom view. FIG. 3 is a front view showing an outdoor lighting fixture that visualizes the inside of the globe. FIG. 4 is an exploded perspective view showing an outdoor lighting fixture.
The outdoor lighting fixture 1 has the fixture main body 3 provided in the top part of the pole (support | pillar) 2 standing upright as shown in FIGS. 1-3. The instrument body 3 has a holder 4 into which the top of the pole 2 is inserted. The holder 4 is formed by forming a material having excellent thermal conductivity, such as aluminum die casting, into a substantially truncated cone shape whose diameter gradually increases from the bottom portion 4A to the upper end portion 4B. The bottom portion 4A includes the pole 2 The top of is inserted.

  The upper end 4B of the holder 4 is formed substantially flat, and a power supply device (power supply unit) 5 is attached on the upper end 4B as shown in FIGS. Further, a support body 6 formed in an inverted V shape so as to straddle the power supply device 5 is fixed with screws on the upper end portion 4B, and a light source section 7 is provided on the top portion 6A of the support body 6. A seed 20 is supported. A substantially cylindrical glove 8 having a lower end formed substantially the same diameter as the upper end portion 4 </ b> B and gradually expanding in the height direction is attached to the holder 4 so as to cover the light source unit 7. The globe 8 is formed of a transparent or semi-transparent material such as a resin material having optical transparency such as polycarbonate or a glass material.

The instrument main body 3 is configured in a waterproof structure by watertightly sealing between the globe 8 and the holder 4 and between the globe 8 and the shade 20.
Specifically, an annular packing 9 as a sealing member is fitted over the entire upper end 4B, and the lower end of the globe 8 is in close contact with the packing 9, so that the globe 8 and the holder 4 are watertight. Sealed.
An annular packing 10 (FIG. 5) as a seal member is fitted to the periphery of the shade 20 over the entire circumference, and the upper end of the globe 8 is in close contact with the packing 10 so that the globe 8 and the shade 20 Is sealed watertight.

Next, the power supply device 5 will be described in detail.
As shown in FIG. 4, the holder 4 includes a substantially cylindrical insertion portion 4 </ b> C into which the top of the pole 2 is inserted, and a power supply device 5 is attached on the upper end portion of the insertion portion 4 </ b> C. The power supply device 5 is configured by attaching a power supply board 5B on which electronic components are mounted on a power supply mounting plate 5A formed of a heat conductive material. The power supply mounting plate 5A is formed to have a size that covers the upper end of the insertion portion 4C, and the top of the pole 2 is closed by the power supply mounting plate 5A. Thus, since the power supply device 5 is provided with the top of the pole 2 closed, the power supply 5 can be easily made into a moisture-proof structure with a simple configuration in which the power supply 5 itself closes the top of the pole 2. . Further, since a separate fixture for fixing the power supply device 5 to the instrument main body 3 is not required, the power supply device 5 can be arranged in the instrument main body 3 in a compact manner. In addition, since the substantially cylindrical insertion portion 4C for inserting the top portion of the pole 2 is provided and the power supply device 5 is disposed on the upper end portion of the insertion portion 4C with the upper end portion closed, the power supply device 5 is attached to the instrument body 3 in advance. Since it can fix, the outdoor lighting fixture 1 can be installed in the pole 2 easily.

  A packing 11 as a seal member is fitted over the entire upper end of the insertion portion 4C, and the power supply mounting plate 5A is fixed to the upper end of the insertion portion 4C with a screw via the packing 11. The packing 11 seals the power supply mounting plate 5A and the upper end of the insertion portion 4C in a watertight manner, so that the power supply device 5 can be surely provided with a moisture-proof structure.

  Further, the power supply mounting plate 5A is formed with a through hole 12A at a position inside the insertion portion 4C, and a filter 12 is provided in the through hole 12A. In addition to dust, the filter 12 includes a water vapor impermeable filter that does not transmit water and water vapor. The filter 12 removes dust and water vapor from the air passing through the through hole 12A. By forming the through hole 12A in the power supply mounting plate 5A and providing the filter 12 in the through hole 12A, even if the instrument body 3 has a waterproof structure, the air in the instrument body 3 flows through the through hole 12A. That is, when the light source unit 7 is turned on, the air in the instrument body 3 is heated and expanded by the heat generated by the light source unit 7, so that the air in the instrument body 3 is discharged into the pole 2 from the through hole 12 </ b> A. On the other hand, when the light source unit 7 is turned off, the air heated and expanded by the heat generated by the light source unit 7 is cooled and contracted by the external atmospheric temperature or the like, so that the air in the pole 2 enters the instrument body 3 from the through hole 12A. It will get in. Since the heat of the power supply device 5 can be radiated to the pole 2 by the filter 12, the power supply device 5 can be effectively cooled. In addition, since the heat of the power supply device 5 is less likely to be trapped in the instrument main body 3, the influence of the heat of the power supply device 5 on the light source unit 7 can be suppressed.

  Further, the power supply mounting plate 5A has a power line lead-in hole 13A opened at a position inside the insertion portion 4C, and an external power line is connected to the inside of the instrument body 3 from the inside of the pole 2 through the power line lead-in hole 13A. Be drawn into. At this time, in order to seal the power line drawing hole 13A, the bushing 13 is fitted into the power line drawing hole 13A, and the wiring is passed through the bushing 13. An external power supply line led into the instrument body 3 is connected to the power supply device 5, and a wiring (not shown) extending from the power supply device 5 is connected to a connector 14 provided on the top 6 </ b> A of the support 6. Yes.

Next, the shade 20 will be described in detail.
5 is a cross-sectional view taken along the line VV in FIG. 2, and FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a plan view showing the outdoor lighting apparatus 1 with the lid removed. FIG. 8 is a perspective view showing the outdoor lighting apparatus 1 with a part thereof cut. FIG. 9 is a perspective view showing the shade 20 from below.
The shade 20 is formed of a material having excellent thermal conductivity such as aluminum die casting, and as shown in FIG. 4, a substantially disk-shaped shade body 21 covering the upper end of the globe 8, and the shade body 21 to the inside of the globe 8. A column body 22 extending in a substantially cylindrical shape is integrally provided. The shade body 21 includes an edge 20B extending downward on the periphery of the substantially planar and substantially circular upper surface 20A. A plurality of light source units 30 constituting the light source unit 7 are attached to the side surface of the column 22 in the circumferential direction.

A recess 23 is formed on the upper surface 20 </ b> A of the shade body 21, and the shade 20 is supported by the top portion 6 </ b> A of the support 6 at the bottom 23 </ b> A of the recess 23. A connector hole 23B for exposing the connector 14 to the recess 23 is formed in the bottom 23A. Wiring from the light source unit 30 is guided to the recess 23 and connected to the connector 14. Thus, since the recessed part 23 was provided in the upper surface of the shade 20, the connection space which connects the wiring of the power supply device 5 and the wiring of the light source unit 30 in the recessed part 23 can be provided. Further, since the shade 20 is configured to receive the support 6 at the bottom 23A of the recess 23, the fixing portion of the support 6 can be easily formed on the shade 20, and the wiring of the power supply device 5 and the light source unit 30 can be formed in the recess 23. A connection space for connecting the wiring can be provided.
A packing 15 as a seal member is fitted over the entire circumference of the recess 23 on the upper surface 20 </ b> A of the shade body 21, and a lid 28 covering the recess 23 is attached to the upper surface 20 </ b> A via the annular packing 15. The lid 28 and the shade main body 21 are sealed in a water-tight manner when the lid 28 is in close contact with the packing 15.

  As shown in FIGS. 5 and 6, the column body 22 includes a substantially cylindrical inner wall 22A, and a substantially cylindrical outer wall 22B disposed with the inner wall 22A and a space Q (FIG. 8) therebetween. The support 6 is located inside 22A. The inner wall 22A has an upper end and a lower end that are substantially the same size, the outer wall 22B has a reduced diameter from the upper end to the lower end, and the column 22 is formed in an inverted frustum shape. On the outer peripheral surface (side surface) of the outer wall 22B, there are a plurality of planar mounting portions (side surfaces) 22B1 extending vertically, and a light source unit 30 constituting the light source unit 7 is provided in each mounting portion 22B1. In the present embodiment, the four attachment portions 22B1 are arranged at equal intervals of 90 ° in the circumferential direction of the column body 22, and two of the four attachment portions 22B1 at 120 ° with respect to one attachment portion 22B1. The attachment portions 22B1 are arranged at equal intervals, and a total of six attachment portions 22B1 are formed. When four light source units 30 are provided, four attachment portions 22B1 arranged at equal intervals at 90 ° are used. When three light source units 30 are provided, three light source units 30 are arranged at equal intervals at 120 °. The attachment portion 22B1 is used.

  Thus, since the attachment part 22B1 which attaches the light source unit 30 to the column body 22 connected to the shade 20 is formed, the heat of the light source unit 30 can be radiated from the shade 20, so that the heat dissipation can be improved. Furthermore, since the shade 20 is integrally formed with the column 22, the number of parts can be reduced and the manufacturing process can be simplified, and the heat of the light source unit 30 that has been transferred to the column 22 can be efficiently transferred to the shade 20. The heat dissipation can be further improved. Further, since the attachment portion 22B1 of the light source unit 30 is formed on the side surface of the column 22 extending from the shade 20 around the support body 6, the support body 6 of the shade 20 is not positioned around the light source unit 30. 6 can prevent the light of the light source unit 30 from being blocked. Further, since the support 6 of the shade 20 is not positioned around the light source unit 30, the design is excellent.

  A plurality of radiating fins 24A are formed between the inner wall 22A and the outer wall 22B. As shown in FIGS. 7 and 8, a plurality of the radiation fins 24A are provided at positions corresponding to the four attachment portions 22B1 arranged at equal intervals of 90 °. It is composed. The heat radiating fins 24 </ b> A are provided substantially perpendicular to the planar mounting portion 22 </ b> B <b> 1, thereby providing a space R between the heat radiating fin units 24. The heat radiating fins 24A are inclined from the bottom 23A of the recess 23 toward the upper surface 20A of the shade body 21, and the recess 23 is formed relatively large by this inclination. Moreover, since the radiation fin 24A and the lid body 28 (FIG. 6) are separated by inclining the radiation fin 24A, the recess 23 and the space R communicate with each other.

As shown in FIG. 8, a plurality of ventilation holes (openings) 25 penetrating the inner wall 22 </ b> A and the outer wall 22 </ b> B are formed in the lower part of the column body 22 in the circumferential direction of the column body 22. The vent holes 25 are elongated in the vertical direction, and are disposed at positions corresponding to the four attachment portions 22B1 disposed at equal intervals of 90 °. By these vent holes 25, the inside of the inner wall 22 </ b> A, the space Q between the inner wall 22 </ b> A and the outer wall 22 </ b> B, and the space S inside the globe 8 outside the outer wall 22 </ b> B communicate with each other. To do.
Further, a through hole (opening) 26 penetrating the outer wall 22B is formed at a position corresponding to the space R in the upper part of the outer wall 22B. The through hole 26 is formed in a substantially rectangular shape. Also through the through hole 26, the space Q inside the outer wall 22B communicates with the space S outside the outer wall 22B, and hot air circulates in the globe 8. In FIG. 8, the solid line arrow indicates the movement of hot air having a relatively high temperature, and the alternate long and short dash line arrow indicates the movement of hot air having a relatively low temperature.

  As described above, since the pillar body 22 is provided with the air holes 25 and the through holes 26 for circulating hot air in the globe 8, the hot air in the globe 8 can be circulated even if the pillar body 22 is provided in the globe 8. Therefore, the inside of the globe 8 can be set to a substantially uniform temperature. As a result, the heat of the light source unit 7 can be prevented from being trapped in the inner wall 22A and the space Q between the inner wall 22A and the outer wall 22B, and the heat of the light source unit 7 can be effectively dissipated.

Next, the optical (reflection) member will be described in detail.
FIG. 10 is a perspective view showing the shade 20 with one reflecting plate removed.
At the lower part (one end) of the column 22, as shown in FIG. 8, an upper end 17 </ b> A is formed in an approximately the same size as the lower part of the column 22, and has a substantially frustum-like shape whose diameter gradually increases in the height direction. A reflecting mirror 17 is provided. The reflecting mirror 17 has a reflecting surface on the outer peripheral surface, and an upper end 17 </ b> A is supported by being fixed to a lower portion of the column body 22 with a screw. The reflecting mirror 17 includes an edge 17 </ b> B extending in the axial direction of the column 22 at the lower end. The edge 17 </ b> B extends near the upper end 4 </ b> B of the holder 4, and the power supply device 5 is built in the reflecting mirror 17. As described above, the light source unit 7 is disposed above the power source device 5 and the frustum-shaped reflecting mirror 17 that covers the power source device 5 is provided below the light source unit 7, so that the power source device 5 is not exposed. Excellent in properties.

Further, the upper end 17A and the lower edge 17B of the reflecting mirror 17 are openings 17C and 17D, and the support 6 (FIG. 6) passes through these openings 17C and 17D to pass through the reflecting mirror 17. Located in. As described above, since the reflecting mirror 17 is provided around the support body 6, the support body 6 is not positioned around the reflecting mirror 17, so that the reflected light of the reflecting mirror 17 can be prevented from being blocked by the support body 6. Further, since the support 6 is not positioned around the reflecting mirror 17, the design is excellent.
In the present embodiment, the reflecting mirror 17 is fixed to the column 22, but the fixing position is not limited, and may be fixed to the holder 4, for example.

As shown in FIG. 9, a plurality of reflecting plates (planar reflecting plates) 18 are provided on the upper portion (the other end) of the column body 22 so as to correspond to each light source unit 30. The reflector 18 is formed in a substantially hexagonal shape in plan view, and is disposed between the outer wall 22 </ b> B of the column 22 and the edge 20 </ b> B of the shade 20. The reflecting plate 18 has a substantially planar reflecting surface, and is disposed so that the reflecting surface is substantially parallel to the upper surface 20 </ b> A of the shade 20. As shown in FIG. 10, a boss 27 constituting a mounting surface of the reflector 18 is provided on the lower surface of the shade body 21, and the reflector 18 is fixed to the boss 27 with a screw. It is spaced apart from the lower surface. Further, the reflection plate 18 has a cutout portion 18A that avoids the light source unit 30, and is disposed close to the outer wall 22B.
In the present embodiment, the reflecting plate 18 is divided and formed, but the reflecting plate 18 may be formed integrally.

Next, the light source unit 7 will be described in detail.
FIG. 11 is a perspective view showing the shade 20 with one reflector 18 and the fixture removed. FIG. 12 is a cross-sectional view showing the globe 8.
The light source unit 7 includes a plurality of light source units 30 as described above. As shown in FIG. 10, each light source unit 30 is configured by vertically connecting a plurality of light emitting elements 31, and in this embodiment, the number of connected light emitting elements 31 is three. The light source unit 30 includes a light emitting element module 33 formed by mounting a light emitting element 31 on a substrate 32 formed of a high thermal conductivity material, and an insulator 34 formed of an insulating material such as a resin material. It is configured. In the present embodiment, the light emitting element 31 is configured as a light emitting device having a chip-on-board (COB) structure in which a large number of LEDs are densely arranged on an LED substrate to form a substantially square planar light emitting portion. Of course, instead of the COB type LED, the light emitting element 31 may use another light emitting element such as an LED having another structure or an organic EL.
The light emitting element module 33 is attached to the insulator 34. The light source unit 30 is disposed by bringing the insulator 34 into contact with the mounting portion 22B1 of the column 22 and is fixed to the mounting portion 22B1 by the fixing bracket 19.

  As shown in FIG. 11, the fixing bracket 19 is integrally provided with a rod-like body 19A extending on both sides of the mounting portion 22B1 and a connecting body 19B for connecting the upper ends of the rod-like body 19A. Is formed. A hook 19C that engages with the outer wall 22B of the column body 22 is integrally formed at the lower end of each rod-shaped body 19A, and the light source unit 30 is held by the mounting portion 22B1 at the lower end and the center in the vertical direction of each rod-shaped body 19A. A pressing portion (biasing member) 19D is integrally formed. The holding portion 19D is a spring plate that has an urging force by being bent in a substantially U shape between the rod-shaped body 19A and the rod-shaped body 19A. An insulating cap (not shown) made of an insulating material is attached to the tip of the pressing portion 19D. The rod-shaped body 19A is integrally formed with an elongated rib 19E that protrudes toward the mounting portion 22B1.

  Engagement holes 22B2 are formed at both sides of the insulator 34 at the center in the vertical direction of the attachment portion 22B1. A fixed surface 22B3 for fixing the fixing bracket 19 is formed on the shade main body 21 substantially parallel to the upper surface 20A of the shade 20 at a position above the attachment portion 22B1. In addition, positioning grooves 22B4 are formed on both sides of the insulator 34 in the upper portion of the attachment portion 22B1.

  When the light source unit 30 is fixed to the attachment portion 22B1, the shade 20 is disposed with the upper surface 20A facing downward, the light source unit 30 is applied to the attachment portion 22B1, and the fixing bracket 19 is attached to the attachment portion from above the light source unit 30. 22B1. At this time, the fixing bracket 19 engages the hook 19C with the engagement hole 22B2, disposes the rib 19E in the positioning groove 22B4, and fixes the coupling body 19B to the fixing surface 22B3 with a screw, thereby fixing the attachment portion 22B1. Fixed. As a result, the pressing portion 19D comes into contact with the substrate 32 of the light source unit 30, so that the substrate 32 is urged by the pressing portion 19D of the fixing bracket 19 and the light source unit 30 is fixed to the mounting portion 22B1.

As described above, the light source unit 30 is arranged on the attachment portion 22B1 via the insulator 34 and is fixed by the fixing bracket 19 having the biasing member. Therefore, it is not necessary to bond the light source unit 30 to the attachment portion 22B1. Therefore, the light source unit 30 can be easily attached and detached. Further, since the fixing surface 22B3 of the fixing bracket 19 is formed substantially parallel to the upper surface 20A of the shade 20, the fixing surface 22B3 is horizontal when the light source unit 30 is fixed. Thereby, since the screw of the fixing bracket 19 can be fixed downward, the fixing bracket 19 can be fixed more easily than when the fixing surface 22B3 of the fixing bracket 19 is provided vertically or inclined.
The wiring of the light source unit 30 is drawn into the back surface side of the reflector 18 through the gap between the connecting body 19B and the attachment portion 22B1, and is drawn into the recess 23 from the wiring drawing hole 29 formed in the outer wall 22B.

Next, the light distribution of the outdoor lighting fixture 1 will be described.
FIG. 12 is an explanatory view showing light distribution of the outdoor lighting fixture 1.
In the outdoor lighting device 1, as shown in FIG. 5, a plurality of light source units 30 are evenly attached to the side surface of the inverted frustum-shaped column body 22 in the circumferential direction, and a weight base is attached to the lower end (lower part) of the column body 22. A reflecting mirror 17 is provided, and a plurality of planar reflecting plates 18 are provided on the upper end (upper part) of the column 22. The light of the light source unit 30 arranged on the inverted frustum-shaped column 22 can be reflected by the frustum-shaped reflecting mirror 17 and the planar reflecting plate 18 to the entire periphery of the side of the instrument body 3, so that the instrument body 3 It is possible to illuminate the entire periphery of the side. Further, since the light emitting elements 31 are arranged linearly, a relatively long light distribution is obtained in the axial direction of the columnar body 22, so that the illumination can be performed relatively widely over the entire periphery of the side of the instrument body 3. Moreover, since the light emitting element 31 (FIG. 10) is arranged on the inverted frustum-shaped column 22 so that the light emitting element 31 emits light obliquely downward of the instrument body 3, the instrument body 3 It is possible to illuminate a relatively wide area over the entire circumference of the side of the instrument body 3 while suppressing the light distribution upward. The light source unit 30 is disposed with the optical axis F of the light emitting element 31 (FIG. 10) facing the center of the globe 8 in the vertical direction. From the outdoor lighting fixture 1, direct light K 1 radiated from the light emitting element 31, reflected light K 2 reflected by the frustum-shaped reflecting mirror 17, and reflected light K 3 reflected by the plurality of reflecting plates 18. Radiated through the globe 8.

  Further, as shown in FIG. 12, the outer surface 8A of the globe 8 is formed in a substantially circular shape. The globe 8 and the inner surface 8B are provided with a plurality of triangular prism portions 8C having a pair of inclined surfaces 8C1 inclined with respect to the outer surface 8A in the circumferential direction of the globe 8. The prism portion 8C is provided from the upper end to the lower end of the globe 8, and is formed so as to have a top portion 8C2 formed by the inclined surface 8C1 in the same circular shape in the horizontal cross section. As shown by arrows in FIG. 12, the prism portion 8C reflects the direct light K1 emitted from the light emitting element 31, the reflected light K2 reflected by the frustum-like reflecting mirror 17, and the plurality of reflecting plates 18 to reflect. Since the reflected light K3 can be emitted in the lateral direction (horizontal direction), that is, in the circumferential direction of the instrument body 3, it can be illuminated relatively widely over the entire periphery of the instrument body 3.

  As described above, according to the present embodiment, the instrument main body 3 includes the column body 22, a plurality of light emitting elements 31 are attached to the side surface of the column body 22 in the circumferential direction, and a weight is provided below the column body 22. In addition to providing the trapezoidal reflecting mirror 17, the planar reflecting plate 18 is provided above the column body 22. The light of the light emitting element 31 can be reflected to the entire circumference of the side of the instrument body 3 by the frustum-shaped reflecting mirror 17 and the planar reflector 18, so that the entire circumference of the side of the instrument body 3 can be reflected. Can be illuminated.

  Further, according to the present embodiment, since the light emitting elements 31 are arranged in a linear shape, a relatively long light distribution is obtained in the axial direction of the columnar body 22, so that the entire circumference of the side of the instrument body 3 is relatively long. Can be widely illuminated. Further, since the light emitting element 31 is arranged so as to emit light obliquely downward of the instrument main body 3, the light distribution upward of the instrument main body 3 is suppressed and the entire circumference of the side of the instrument main body 3 is extended. It can be illuminated relatively widely.

  Further, according to the present embodiment, the globe 8 is provided around the light emitting element 31, and the direct light emitted from the light emitting element 31 to the globe 8 is directed so that the optical axis of the light emitting element is directed substantially to the center in the vertical direction of the globe. The prism portion 8C is configured to radiate and spread K1 and the reflected lights K2 and K3 reflected by the frustum-shaped reflecting mirror 17 and the planar reflecting plate 18 in the horizontal direction. With this configuration, the light of the light emitting element 31 is spread and irradiated in the circumferential direction of the instrument body 3, so that the entire periphery of the side of the instrument body 3 can be illuminated relatively widely.

However, the above-described embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above-described embodiment, the power supply device 5 is fixed via the packing 11, but the packing 11 may be omitted.
In the above-described embodiment, the power supply device 5 is provided by closing the insertion portion 4 </ b> C of the holder 4. However, the power supply device 5 may be provided so as to close the top of the pole 2. In this case, an annular packing as a seal member may be provided between the power supply device 5 and the pole 2.

  In the above-described embodiment, the filter 12 is provided on the power supply mounting plate 5A of the power supply device 5. However, the position of the filter 12 is not limited to this, and for example, the holder 4, the globe 8, or the shade 20 is used. May be provided.

  In the above-described embodiment, the vent hole 25 and the through hole 26 for circulating hot air in the globe 8 are provided. However, one of the vent hole 25 and the through hole 26 may be provided. The shapes and arrangement positions of the air holes 25 and the through holes 26 can be arbitrarily changed.

In the above-described embodiment, the shade main body 21 and the column body 22 of the shade 20 are integrally formed. However, the shade main body 21 and the column body 22 may be formed separately. In this case, the column body 22 may be fixed to the shade main body 21 or may be fixed to the support body 6.
Further, in the above-described embodiment, the outer wall 22B is provided to be inclined by reducing the diameter from the upper end to the lower end, but the outer wall 22B may be provided perpendicular to the upper surface 20A of the shade 20.

  In the above-described embodiment, the light emitting elements 31 are connected in the vertical direction and arranged linearly. However, the light emitting elements 31 may be provided alone. Further, the arrangement of the light emitting elements 31 is not limited to a linear shape.

  In the above-described embodiment, the prism portion 8C is provided on the globe 8. However, the prism portion 8C may be omitted.

  Moreover, although the lighting fixture was demonstrated as an outdoor lighting fixture in the above-mentioned embodiment, this invention is naturally applicable to the various lighting fixtures used outdoors or indoors.

1 Outdoor lighting equipment (lighting equipment)
3 Instrument body 8 Globe 8C Prism unit 17 Reflector 18 Reflector (planar reflector)
22 Column 30 Light source unit 31 Light emitting element

Claims (3)

In a lighting fixture having a light emitting element in the fixture body,
The instrument body includes a column,
A plurality of light emitting elements are attached to the side surface of the column body in the circumferential direction,
A luminaire comprising a frustum-like reflecting mirror provided at a lower portion of the column body and a planar reflecting plate provided at an upper portion of the column body.   2. The lighting apparatus according to claim 1, wherein the light emitting elements are arranged in a linear shape so as to emit light obliquely downward of the apparatus main body. A glove is provided around the light emitting element,
The optical axis of the light emitting element is directed to the substantially vertical center of the globe,
Formed on the globe is a prism portion that radiates the direct light radiated from the light emitting element and the reflected light reflected by the frustum-shaped reflecting mirror and the planar reflecting plate in a horizontal direction. The lighting fixture according to claim 1 or 2, characterized in that

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