JP6548899B2 - Lighting device - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a lighting device suitable mainly for security lights, road lights and street lights installed on living roads and streets.

  Many lighting devices that use low-power-consumption light-emitting elements (LEDs) as light sources are installed not only in ordinary homes but also in commercial facilities, and are being adopted for lighting devices such as street lights installed outdoors. In this lighting device, a plurality of light emitting elements are arrayed inside the main body, and illumination light is emitted downward.

  For the installation of such a lighting device, for example, an existing utility pole on a street is used, or a dedicated support pole is set up. In the case of using such a utility pole or a post, the lighting device is usually fixed to the tip of a power pipe or a branch tube fixedly extended to the post (see, for example, Patent Document 1).

  The lighting device installed outdoors as disclosed in Patent Document 1 emits light to the area where the vertical angle is about 85 ° or more in the width direction from directly below the center of the lighting device main body when the light emission surface of the illumination light is directed downward. There is a problem that the illumination light gives a feeling of glare to a pedestrian (glare) and causes light damage to surrounding people and the like.

  In addition, in the lighting device installed on the living road, in order to illuminate the road efficiently, it is possible to illuminate a wide area of the road surface with a light distribution pattern of a substantially oval shape in the road axis direction. From the viewpoint of securing visibility, at a position 150 cm above the road surface at the center line of the road width, predetermined brightness at the vertical surface illuminance on the plane perpendicular to the road axis (0. Since five or more luxes are required, it is desirable to provide a lighting device installation interval that maximizes the range of class B 0.5 luxes.

  In order to enable effective illumination of an area where light is desired to be emitted by separately controlling light distribution in two directions of the width direction of the road and the traveling direction of the road in consideration of such conditions, One that performs light distribution control has been proposed (see, for example, Patent Document 2).

JP, 2014-1323593, A JP 2012-138208 A

  By the way, such a lighting installation installed outdoors must have a light distribution pattern controlled according to different installation places such as a living road, an intersection, a park and the like. That is, when a living road or a street is to be illuminated, a light distribution pattern of a substantially oval shape must be used in order to efficiently irradiate the road axial direction. On the other hand, when an intersection or a park is to be illuminated, the light distribution pattern should have a substantially circular or trapezoidal shape.

  However, the illumination device disclosed in Patent Document 2 relates to a technique provided with an adjustment mechanism for adjusting the relative position of the optical lens and the light source, and a mechanism for finely adjusting the incident position on the optical lens in the axial direction. Since it becomes limited light distribution control within the range of the optical lens concerned, the light distribution of the abbreviation oval which illuminates the road axial direction efficiently, and an intersection, a park, etc. are illuminated efficiently. It is not possible to mutually change the substantially circular or trapezoidal light distribution.

  The present invention has been made to solve such conventional problems, and is intended to obtain both a substantially oval light distribution and a substantially circular or substantially trapezoidal light distribution pattern by a simple operation. It is an object of the present invention to provide a lighting device capable of flexible light distribution control.

Therefore, the present invention solves the above-mentioned problems by means described below. That is, in the first aspect of the present invention, the upper surface cover of the illumination device whose lower surface is opened, one or more light source units having a plurality of light emitting elements mounted on the substrate, and the light source unit and the light emitting elements A light transmission cover that covers the lighting device to be mounted to the columnar structure on the rear side by means of fixing brackets ,
The light source unit includes a light source element mounted with a plurality of the light emitting element on an insulating substrate, a light control element that controls the emission direction of the emitted light of the light emitting element by sliding on the light source element,
The said light control element, a first transmission hole for guiding the emitted light of the light emitting element to the light control member, a second transmission hole for emitting the emission light directly formed,
A light distribution pattern in which light is diffused long in the lateral direction of the lighting device by the action of the light control member in a state where the first transmission hole is positioned on the light axis of the light emitting element at the slide of the light control element And a light distribution pattern that is substantially circular or trapezoidal when the second transmission hole is positioned on the optical axis of the light emitting element,
A lighting device characterized by

In the invention according to claim 2, in order to light up the upper surface cover of the lighting device whose lower surface is opened, one or more light source units having a plurality of light emitting elements mounted on a substrate, the light source unit and the light emitting elements A light transmission cover that covers the lighting device, and is attached to the columnar structure at the rear side with a fixing bracket,
The light source unit includes a light source element in which a plurality of the light emitting elements are mounted on an insulating substrate, and a light control element which slides on the light source element to control the emission direction of light emitted from the light emitting element.
The light source element has a configuration in which a plurality of the light emitting elements are mounted in a plurality of rows on the insulating substrate ,
The light control element includes a lens-like light control member corresponding to each of the light emitting elements on a substrate, and a transmission hole corresponding to each of the light emitting elements without the light control member being present, and each of the light emitting elements Sliding on the light source element in a state in which each of the light control members is positioned on the optical axis of the light source and in a state in which each of the transmission holes is positioned on the optical axis of the light emitting element;
When the light control member is positioned on the optical axis of the light emitting element, the light control pattern causes a light distribution pattern to be diffused long in the lateral direction of the lighting device, and the light transmission is transmitted on the optical axis of the light emitting element The light distribution pattern is substantially circular or trapezoidal when the holes are positioned.

In the invention according to claim 3 , in the lighting device according to claim 1 or 2 , a locking convex portion is formed on the light source element, while a locking recess is formed on the light control element, and the locking is performed. The sliding position of the pair of transmission holes of the light control element is regulated on the optical axis of the light emitting element by the engagement of the convex portion and the locking concave portion.

The invention according to claim 4, in the illumination apparatus according to claim 1, the rear surface of the light control element, external each other and the light source portion of the first transmission hole and the second transmission hole A configuration in which a venting groove leading to a vent is formed.

  According to the present invention, a pair of transmission holes is formed at a position corresponding to the optical axis of the light emitting element of the light control element, and a light control member molded of a transparent material is disposed on one transmission hole. In the above optical axis, any one of the pair of transmission holes is positioned, so a substantially oval light distribution for efficiently illuminating the road axial direction only by the slide of the light control element, an intersection, a park, etc. It is possible to mutually change the light distribution of substantially circular or trapezoidal shape to illuminate the light efficiently.

  Further, according to the present invention, since one or more light control members are provided, different types of light distribution patterns can be formed, and one lighting device can cope with various illumination environments. Can.

  Further, according to the present invention, the locking convex portion is formed on the light source element, while the locking concave portion is formed on the light control element, and the engagement of the locking convex portion and the locking recess forms one light control element. The slide position of the set of transmission holes is accurately regulated on the optical axis of the light emitting element, and illumination light with high accuracy can be obtained.

  Further, according to the present invention, the back surface of the light control element is formed with the venting groove communicating between the pair of transmission holes and the outside of the light source portion, so heat generation from the light emitting element is not accumulated in the light source portion. Therefore, it is possible to prevent the decrease and deterioration of the light emission efficiency of the light emitting element due to the above, and to obtain a long life lighting device maintaining initial performance.

It is a top view of the lighting installation of the present invention. It is a side view of the lighting installation of the present invention. It is a rear view of the illuminating device of this invention. It is a bottom view which shows the internal structure of the illuminating device of this invention. It is sectional drawing of the illuminating device of this invention. The bottom view explaining the internal structure of the illuminating device of this invention It is an exploded perspective view of a lighting installation of the present invention. It is an exploded perspective view of a lighting installation of the present invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is a side view which shows the installation state of the illuminating device of this invention. It is principal part sectional drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the example of the flow of a process of the power supply part of the illuminating device of this invention. It is a disassembled perspective view of the light source part of the illuminating device of this invention. It is explanatory drawing of the light control element of the light source part of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is explanatory drawing of the light distribution pattern of the illuminating device of this invention. It is explanatory drawing of the light distribution pattern of the illuminating device of this invention. It is a top view of the light control element of the illuminating device of this invention. It is a top view of the light source element of the illuminating device of this invention. It is explanatory drawing of the principal part of the light control element of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is explanatory drawing of the light distribution pattern of the illuminating device of this invention.

  Hereinafter, embodiments of the present invention will be described in detail based on the drawings. 1 is a plan view of a lighting device 1 according to the present invention, FIG. 2 is a side view, FIG. 3 is a rear view, and FIG. 4 is a bottom view showing an internal structure. Explain.

  The lighting device 1 according to the present invention is a unit wherein the upper surface cover 2 as the main body is integrally formed of a material having excellent corrosion resistance such as aluminum die casting. 3A is interposed and screwed to the mounting boss 2c via the screw hole 3a. Further, as shown in FIG. 1, FIG. 3, FIG. 6, etc., the sloped portion 2a is formed on the rear side of the top cover 2, and the sloped portion is formed at one sloped end 2a-1 of the sloped portion 2a. A lid 4 conforming to the opening shape of 2a is connected to be able to open and close by a hinge 4a. The rear end face of the top cover 2 and the front end face of the lid 4 are shown in FIG. 5 by fixing the other inclined end 2a-1 of the lid 4 not provided with the hinge 4a to the top cover 2 with a mounting screw. It is connected to In this case, the outer surfaces of the opposing portions of the end portions of the lid 4 and the light transmitting cover 3 are made flush with each other so as to form a forming process having a sense of unity on the irradiation surface.

  As shown in FIG. 5, the upper surface cover 2 is formed with a through hole 2b for inserting the branch pipe B1 of the fixing bracket B, and a plurality of mounting bosses 2c and a heat sink 2d of the light source unit 5 described later are shown in FIG. As shown in FIG. A heat conduction plate 6 provided with a light source unit 5 is fixed to the heat sink 2d, and heat generated from each light emitting element 5a (see FIG. 18) is guided to the heat sink 2d. The heat sink 2d absorbs the heat and dissipates it from the top cover 2 to the outside of the device. The light source unit 5 and the heat conducting plate 6 are fixed to the heat sink 2 d by the holder 7. Further, a power supply unit 8 is disposed at the rear of the light source unit 5, and a DC driving power supply obtained by converting the voltage of the commercial AC power supply is supplied from the power supply unit 8 to the light source unit 5 by a lead wire 9.

  The lead wire 9 for leading the commercial AC power supply to the power supply unit 8 is connected to the terminal block 10 disposed in the empty chamber of the inclined portion 2a of the top cover 2, and the cable for commercial AC power is pulled out through the branch pipe B1. . Further, in the space of the inclined portion 2a, a fixing fitting 12 for fixing an end portion of the branch pipe B1 inserted with the sealing ring 11 interposed from the through hole 2b is disposed.

  As shown in FIG. 7, the fixing bracket 12 has a first support member 12a whose end is screwed to the mounting boss 2c as shown in FIG. 10 and FIG. As shown in FIG. 11, it comprises a second support member 12b screwed. A curved portion 12a-1 parallel to the axial center direction of the branch pipe B1 is formed at the center of the first support member 12a, while parallel to the axial center direction of the branch pipe B1 at the center of the second support member 12b. A flat stepped portion 12b-1 is formed, and the flat stepped portion 12b-1 is provided with a fixing screw 12b-2 and a positioning screw 12b-3 for fixing as shown in FIG.

  Since the fixing bracket 12 is configured as described above, it becomes possible to fix various branch pipes B1 having different diameters. That is, when the branch pipe B1 having the relatively largest diameter is fixed, as shown in FIG. 9, the support member 12a is removed, and the end of the branch pipe B1 on the second support member 12b screwed to the mounting boss 2c. After positioning the branch pipe B1 at a fixed position with the positioning screw 12b-3, tighten the fixing screw 12b-2 to press the branch pipe B1 against the pair of convex strips 2e integrally formed on the upper surface cover 2 for mounting work. Complete.

  Further, when the medium diameter branch pipe B1 is fixed, as shown in FIG. 10, the first support member 12a is screwed to the mounting boss 2c, and the second support member 12b is screwed to the mounting boss 2c. Then, the end of the branch pipe B1 is inserted between the first and second support members 12a and 12b, and after the branch pipe B1 is positioned at a fixed position by the positioning screw 12b-3, the fixing screw 12b-2 is tightened to branch the branch pipe B1. Is pressed against the first support member 12a to complete the mounting operation.

  Further, when the branch pipe B1 having a small diameter is to be fixed, as shown in FIG. 11, the first support member 12a is screwed to the mounting boss 2c, and the second support member 12b is fixed to the flat step 12b-1. Screw the mounting boss 2c so that the convex surface faces upward. Then, the end of the branch pipe B1 is inserted between the first and second support members 12a and 12b, and after the branch pipe B1 is positioned at a fixed position by the positioning screw 12b-3, the fixing screw 12b-2 is tightened to branch the branch pipe B1. Is pressed against the first support member 12a to complete the mounting operation.

  As described above, while the attachment work of the branch pipe B1 is performed, as shown in FIG. 6, since the cover 4 is expanded without interfering with the branch pipe B1 etc., the inclined portion 2a is completely opened, The mounting operation of the branch pipe B1 and the wiring operation to the terminal block 10 can be easily performed. Since the lighting device 1 of the present invention is configured as described above, when it is attached to the columnar structure P by the fixing bracket B as shown in FIG. It is possible to improve the quality. Moreover, since the lid 4 comes to be located on the lower surface of the apparatus main body, it is possible to reliably prevent the entrance of rain water and the like.

  Below, the structure of the power supply part 8 is demonstrated in detail. The power supply unit 8 converts a commercial AC power supply into a DC power supply obtained by stepping down and supplies the DC power supply to the light source unit 5, a lighting circuit for lighting the light emitting element 5a with the DC power supply, and the brightness of the environment outside the apparatus body. A blink control circuit is provided to blink the light emitting element 5a.

  As shown in FIG. 7, the power supply unit 8 is formed by integrating a hollow bowl-shaped case 8a and a slide plate 8b covering the opening surface of the bowl-shaped case 8a. A wiring board 8c on which a circuit, a lighting circuit, and a blinking control circuit are mounted is accommodated. The outer periphery of the slide plate 8b is in the form of a flange projecting from the outer periphery of the bowl-like case 8a, and a dharma hole 8b-1 is formed at the four corners of the flange-like portion.

  As shown in FIG. 13, a light receiving element 8c-1 is mounted on a wiring board 8c on the side of the bowl-shaped case 8a. A through hole 8a-1 is formed on the side wall of the bowl-shaped case 8a facing the light receiving element 8c-1, and external light of the surrounding environment is introduced from the light collecting portion 2f formed on both sides of the upper surface cover 2 I have to. That is, the position facing the through hole 8a-1 of the upper surface cover 2 is formed in a recessed state, and the through hole 2f-1 is formed in the deep rear wall of the light collecting portion 2f. A light collecting packing 13 made of a transparent material is coaxially mounted on the through hole 2f-1 and the through hole 8a-1. The side wall 2f-2 of the light collecting unit 2f serves as a light shielding unit that shields light from both sides in the longitudinal direction (road axis direction) of the device body, and the wall 2f-3 shields light from above, and the light receiving element 8c It is possible to limit the light that is noise incident on -1.

  When the light receiving element 8c-1 is provided on one of the side portions of the power supply unit 8 configured as described above, the light receiving element 8c-1 is made to face any one of the light pickup parts 2f of the top cover 2. Can be arranged. Such a function occurs when the light emitted from a lighting facility such as a surrounding house or building where the lighting apparatus 1 is installed becomes noise and is detected by the light receiving element 8c-1 and does not light at night when it should be lighted. It can correspond.

  In such a case, the arrangement of the light receiving element 8c-1 on the light noise ingress side of the light collecting portion 2f of the upper surface cover 2 is avoided, and the light collecting portion 2f not affected by the light noise is selected to arrange the power supply portion 8 To make it possible. That is, in the case where the power supply unit 8 emits light from the light receiving unit 2f on the upper side of the same figure as shown in FIG. 6, when the influence of the light noise is confirmed, the small diameter portion of the dharma hole 8b-1 is fixed. By loosening the mounting screw 14 and sliding the slide plate 8b to remove the head of the mounting screw 14 from the large diameter portion of the dharma hole 8b-1, the entire power supply unit 8 can be rotated 180 °, as shown in FIG. The arrangement direction can be changed so that light can be collected from the lower light collecting unit 2 f on the lower side 6.

  That is, the power supply unit 8 can be disposed arbitrarily in any of the directions shown in FIGS. As shown in FIG. 16, the light receiving elements 8c-1 are provided on both sides in the power supply unit 8, and the switches SW1 and SW2 are provided so that one or both of the light receiving elements 8c-1 can be selected. While being able to improve the flexibility that can cope with the state of the light of the surrounding environment, it is possible to make an emergency response, such as making the other function when one of the light receiving elements 8c-1 fails. The flow of functional processing when the light receiving element 8c-1 is provided on both sides is shown in FIG. As described above, according to the configuration of the power supply unit 8 of the present invention, since the light collecting unit 2 f is provided with the side portion of the upper surface cover 2, the accuracy is remarkably improved compared to the conventional lighting device provided with the light collecting unit on the back. High lighting is possible.

  Below, the structure of the light source part 5 is demonstrated in detail. As shown in FIG. 18, the light source unit 5 has a plurality of chip-like light emitting elements 5a mounted on the insulating substrate 5b, and a pair of light source elements 5c fixed on the heat conducting plate 6; It is mainly composed of a combination with a pair of light control elements 5d which slides on the surface 5c and controls the emission direction of the light emitted from each light emitting element 5a.

  The configuration of each light control element 5d is such that the transmission holes 5d-2 and the transmission holes 5d-3 are arranged in a row on the substrate 5d-1, as shown in detail in FIG. A lens-like light control member 5e molded of a transparent material is fixed to a suitable means such as adhesion. The substrate 5d-1 may be integrally formed as a transparent material together with the light control member 5e. A tapered surface 5d-2a for preventing so-called vignetting of the incident light is formed on the outer peripheral portion of the transmission hole 5d-2 where the light control member 5e is not interposed.

  Further, on the back surface of the substrate 5d-1, a vent groove 5d-4 communicating between the transmission holes 5d-2 and 5d-3 and the outside of the light source unit 5 is formed, and the heat generation of the light emitting element 5a is made outside The light can be dissipated, the heat storage between the light source element 5c and the light control element 5d is eliminated, and the light emitting element 5a is protected. The shape and size of the light control member 5e, and the shape and size of the transmission holes 5d-2 and 5d-3 can be arbitrarily determined based on the light distribution design, and the present invention is not limited to this. Absent.

  In the light control element 5d, the locking recess 5d-5 is engaged with the locking projection 5c-1 of the light source element 5c, and the sliding position of the light control element 5d is regulated. FIG. 20 illustrates a state in which the light control element 5d slides on the light source element 5c. When the light control element 5d is slid to the left by the distance d as shown in the figure, the light of the light emitting element 5a When the light control member 5e of the light control element 5d is positioned on the axis SC and slid to the right by the distance d, the transmission hole 5d-2 of the light control element 5d is positioned on the optical axis SC of the light emitting element 5a. It will be done.

  FIG. 21 is a cross-sectional view of a state in which the light control member 5e is positioned on the optical axis SC of the light emitting element 5a, and FIG. 22 shows a state in which the transmission hole 5d-2 is positioned on the optical axis SC of the light emitting element 5a. In the arrangement of the light control member 5e with respect to the light emitting element 5a shown in FIG. 21, the emitted light emitted from the light emitting element 5a is diffused in the lateral direction by the lens action of the light control member 5e. On the other hand, in the state shown in FIG. 22, the light emitted from the light emitting element 5a passes through the transmission hole 5d-2 and goes straight.

  In the state shown in FIG. 21, since the irradiation light emitted from the whole of the light control element 5d becomes a spindle-shaped light distribution pattern L1 spreading in the lateral direction as shown in FIG. 23, it is suitable for illumination in the longitudinal direction of the road surface. Thus, the light distribution pattern becomes oblong, and the installation interval between the lighting devices can be increased, and the emission (glare) of the illumination light to the area of a vertical angle of 85 ° or more can be suppressed. On the other hand, in the state shown in FIG. 22, since it becomes the light distribution pattern L2 of a spot-like substantially circular or substantially trapezoidal shape as shown in FIG. 24, it becomes suitable for illumination in an intersection or a park. Since the light source unit 5 is configured as described above, it is possible to obtain illumination light having different light distribution patterns only by sliding the light control element 5d.

  Although the light source unit 5 described above is capable of forming the light distribution patterns of the two modes, the light distribution patterns of the three modes can also be formed. The formation of the light distribution pattern of the two modes can be achieved by the horizontal one-dimensional slide of the light control element 5d, but to form the light distribution pattern of the three modes, the light control element 5d is It must slide in the dimensional direction so that it can be fixed in place.

  FIG. 25 is a plan view of the light control element 5 d configured to form the light distribution patterns of the three modes, and in addition to the light control member 5 e at the position corresponding to each light emitting element 5 a shown in FIG. A light control member 5f different in focal length from the member 5e is disposed adjacent to the light control member 5e. Further, a transmission hole 5d-2 is formed adjacent to the light control member 5e. The light control element 5d configured in this manner has its guide groove 5d-6 engaged with the guide pin 5c-2 of the light source element 5c, and vertical and horizontal movements are guided.

  The light control element 5d configured in this way is one of the screw holes 5b-1, 5b-2 and 5b-3 in which the screw holes 5d-7 and 5d-8 are formed in the insulating substrate 5b shown in FIG. Select and screw. Therefore, in the case where the screw holes 5d-7 and 5d-8 are made to coincide with the screw holes 5b-1 and screwed, the light control element 5d is in the state where the guide pin 5c-2 is at the center of the guide groove 5d-6. The light emitting element 5a is positioned in the transmission hole 5d-3 immediately below the central portion of the light control member 5e shown in FIG. 27, and the light can be emitted from the light control member 5e. .

  When screw holes 5d-7 and 5d-8 are aligned with screw holes 5b-2 and screwed, light control element 5d is moved in the vertical direction by distance d2 from the center of guide groove 5d-6. Thus, the light emitting element 5a is positioned in the transmission hole 5d-9 immediately below the central portion of the light control member 5f, and the light control member 5f can emit light. Furthermore, when the light control element 5d is moved by the distance d3 from the state where the light control member 5f is on the light emitting element 5a, and the screw holes 5d-7 and 5d-8 are made to coincide with the screw holes 5b-3 and screwed The light emitting element 5a is positioned directly below the central portion of the transmission hole 5d-2 of the substrate 5d-1, so that the emitted light is directly emitted.

  The relationship between relative positions when the light control element 5d is slid and fixed to the light source element 5c as described above is shown in FIG. 28 and FIG. FIG. 28A shows a state in which the light emitting element 5a is directly below the central portion of the light control member 5e, and FIG. 28B shows a state in which the light emitting element 5a is directly below the central portion of the light control member 5f. (C) shows a state where the light emitting element 5a is directly below the central portion of the transmission hole 5d-2 of the substrate 5d-1.

  By configuring the light source unit 5 as described above, in addition to the light distribution patterns L1 and L2, the light distribution pattern L3 by the light control member 5f can be formed, and various illumination environments can be coped with.

  As apparent from the above description, by implementing the above-described configuration unique to the present invention, it is possible to provide a lighting device with improved functionality and versatility.

DESCRIPTION OF SYMBOLS 1 ......... Lighting apparatus 2 ... Top cover 2a ......... Slope-like part 2f ..... Daylighting part 3 ... Translucent cover 4 ... Lid 4a .. ··· Hinge 5 ··· Light source unit 5c · · · Light source element 5d · · · Light control element 5e · · · Light control member 6 · · · Thermal conduction plate 7 · · · Holder 8 ··· Power supply section 9 ··· Lead wire 10 ··· Terminal block 11 ··· Sealing ring 12 ··· Fixing bracket 12a ··· First support member 12b · · · Second support member 13 · · · Daylighting packing

Claims (4)

An upper surface cover of a lighting device having an open lower surface, one or a plurality of light source units having a plurality of light emitting elements mounted on a substrate, and a light transmitting cover covering the lighting unit for lighting the light source unit and the light emitting elements A lighting device attached to the columnar structure by means of fixing brackets on the rear side ,
The light source unit includes a light source element mounted with a plurality of the light emitting element on an insulating substrate, a light control element that controls the emission direction of the emitted light of the light emitting element by sliding on the light source element,
The said light control element, a first transmission hole for guiding the emitted light of the light emitting element to the light control member, a second transmission hole for emitting the emission light directly formed,
A light distribution pattern in which light is diffused long in the lateral direction of the lighting device by the action of the light control member in a state where the first transmission hole is positioned on the light axis of the light emitting element at the slide of the light control element And a light distribution pattern that is substantially circular or trapezoidal when the second transmission hole is positioned on the optical axis of the light emitting element,
A lighting device characterized by An upper surface cover of a lighting device having an open lower surface, one or a plurality of light source units having a plurality of light emitting elements mounted on a substrate, and a light transmitting cover covering the lighting unit for lighting the light source unit and the light emitting elements A lighting device attached to the columnar structure by means of fixing brackets on the rear side,
The light source unit includes a light source element in which a plurality of the light emitting elements are mounted on an insulating substrate, and a light control element which slides on the light source element to control the emission direction of light emitted from the light emitting element.
The light source element has a configuration in which a plurality of the light emitting elements are mounted in a plurality of rows on the insulating substrate ,
The light control element includes a lens-like light control member corresponding to each of the light emitting elements on a substrate, and a transmission hole corresponding to each of the light emitting elements without the light control member being present, and each of the light emitting elements Sliding on the light source element in a state in which each of the light control members is positioned on the optical axis of the light source and in a state in which each of the transmission holes is positioned on the optical axis of the light emitting element;
When the light control member is positioned on the optical axis of the light emitting element, the light control pattern causes a light distribution pattern to be diffused long in the lateral direction of the lighting device, and the light transmission is transmitted on the optical axis of the light emitting element When the holes are located, the light distribution pattern is substantially circular or trapezoidal.
A lighting device characterized by A locking convex portion is formed on the light source element, while a locking concave portion is formed on the light control element, and a sliding position of the transmission hole of the light control element is the light emission by the engagement of the locking convex portion and the locking concave portion. The lighting device according to claim 1 or 2 , wherein the light is regulated on the optical axis of the element. The back surface of the light control elements, illumination of claim 1, characterized in that each other and ventilation grooves leading to the outside of the light source portion of the first transmission hole and the second transmission hole is formed apparatus.

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