JP2015222692A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture improved in uniformity of light on a surface irradiated with light.SOLUTION: A fixture body 1 includes: a holding member 11 holding a light source; and a mounting member 10 supporting the holding member 11 and mounted on a mounting surface (wall surface) of a building material (wall). The holding member 11 holds the light source so as to incline a light axis of the light source in a direction apart from the mounting surface. A cover 5 includes: a transmission part 500 transmitting light emitted from the light source; and a light guiding part 501 extended to the mounting surface (wall surface) from the transmission part 500 to guide the light to the mounting surface. Part of the light emitted from the light source (an upper side LED module 2) is guided to the light guiding part 501 and applied to a position near to the fixture body 1 on the mounting surface (wall surface). As a result, the lighting fixture can be improved in uniformity of light on the surface (wall surface) irradiated with the light.

Description

  The present invention relates to a lighting fixture.

  As a conventional example, a lighting apparatus described in Patent Document 1 is illustrated. The conventional example described in Patent Literature 1 is attached to the instrument body so as to cover the instrument body attached to the wall, the light source attached to the lower side of the instrument body, the light source attached to the upper side of the instrument body, and these light sources. And a cover.

  Each light source has three light emitting units. Each light emitting unit is configured by mounting a plurality of light emitting diodes on a mounting substrate. These three light emitting units are arranged in a line along the longitudinal direction of the instrument body.

  The cover is formed into a flexible sheet shape by a translucent material. For example, the cover is made of glass fiber fabric, so-called glass cloth. Therefore, in this conventional example, the light source is covered with a glass cloth cover, thereby reducing glare and lamp images (the light source outline can be seen through the cover), and a comfortable lighting environment can be obtained with soft light. .

  This conventional example is installed on a wall of a hospital room or a guest room, for example, and can illuminate the entire room by turning on both the upper and lower light sources. In this conventional example, indirect illumination is performed by turning on the upper light source and illuminating the upper wall surface of the bed (bed).

JP 2013-93280 A

  By the way, in the conventional example described in Patent Document 1, since the light from the light source (upper light source) is difficult to be irradiated on the wall surface near the instrument main body, the light uniformity on the wall surface may be lowered.

  This invention is made | formed in view of the said subject, and aims at improving the uniformity of the light in the surface where light is irradiated.

  The lighting fixture of the present invention includes a light source, a fixture main body that holds the light source, and a cover that is attached to the fixture main body so as to cover the light source, and the fixture main body holds the light source, An attachment member that supports the holding member and is attached to the attachment surface of the construction material, and the holding member holds the light source so as to incline the optical axis of the light source away from the attachment surface, and The cover includes a transmission portion that transmits light emitted from the light source, and a light guide portion that extends from the transmission portion toward the mounting surface and guides the light toward the mounting surface. Features.

  The lighting fixture of the present invention has an effect that the uniformity of light on the surface irradiated with light can be improved.

It is sectional drawing of the state which showed embodiment of the lighting fixture which concerns on this invention, and removed the end cap. 2A is a front view, FIG. 2B is a right side view, and FIG. 2C is a bottom view. It is a top view which fractured | ruptured partially same as the above. FIG. 4A is a rear view of the mounting plate portion removed, and FIG. 4B is a front view of the mounting plate portion. It is sectional drawing of the state which showed the same and removed the end cap. It is sectional drawing of the state which showed the same and removed the end cap and was installed in the wall surface. FIG. 3 is a cross-sectional perspective view showing the same as above, with the cover, the end fitting, and the end cap removed.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described in detail with reference to the drawings. This embodiment exemplifies a so-called bracket-type lighting fixture that is installed on the wall of a hospital room or a guest room, as in the conventional example described in Patent Document 1. However, the lighting fixture to which the technical idea of the present invention can be applied is not limited to the bracket type lighting fixture, and the technical idea of the present invention can be applied to lighting fixtures other than the bracket type. In the following description, the vertical, left and right, front and rear directions are defined in a state where the surface is installed on the construction surface (wall surface), the direction perpendicular to the wall surface is the front and rear direction, the front is the front and the back is the rear. (See FIGS. 1 and 3).

  The lighting fixture of this embodiment includes a fixture main body 1, a light source, a cover 5, and the like. Moreover, it is preferable that the lighting fixture of this embodiment is provided with the three upper LED modules 2, the two lower LED modules 3, and the one LED light bulb 4 as a light source.

  Each of the three upper LED modules 2 includes a mounting substrate 21 and a plurality of LED (light emitting diode) chips 20 mounted on one surface (mounting surface) of the mounting substrate 21 (see FIG. 1). The mounting substrate 21 is formed in a rectangular plate shape elongated in the left-right direction. The LED chips 20 are mounted on the mounting surface of the mounting substrate 21 at regular intervals along the longitudinal direction (see FIG. 3). A wiring conductor (not shown) that is electrically connected to the anode and cathode of each LED chip 20 is formed on the mounting surface of the mounting substrate 21.

  As shown in FIG. 3, these three upper LED modules 2 are held by the instrument body 1 so as to be aligned in a line along the longitudinal direction. However, in FIG. 3, only two upper LED modules 2 are illustrated. In addition, the number of LED chips 20 of one upper LED module 2 in the center is larger and the interval is narrower than the number of LED chips 20 of the two upper LED modules 2 at both ends.

  Similar to the upper LED module 2, the two lower LED modules 3 each include a mounting substrate 31 and a plurality of LED chips 30 mounted on one surface (mounting surface) of the mounting substrate 31 (see FIG. 1 and FIG. 1). (See FIG. 4A). The mounting substrate 31 is formed in a rectangular plate shape elongated in the left-right direction. The LED chips 30 are mounted on the mounting surface of the mounting substrate 31 so as to be arranged at equal intervals along the longitudinal direction (see FIG. 4A). A wiring conductor (not shown) that is electrically connected to the anode and cathode of each LED chip 30 is formed on the mounting surface of the mounting substrate 31.

  These two lower LED modules 3 are held at the left and right ends of the instrument main body 1 so as to be arranged in a line at intervals. The number of LED chips 30 in the two lower LED modules 3 is preferably the same.

  The LED bulb 4 is a bulb-type LED light source having an E12 base, and is generally called an LED small round bulb. As shown in FIG. 4B, the LED bulb 4 is attached to a lamp socket 40 attached to the front surface of the instrument main body 1 (attachment member 10 described later) and is held by the instrument main body 1.

  The instrument main body 1 includes an attachment member 10 and a holding member 11. The mounting member 10 includes a rectangular plate-shaped mounting plate portion 100 having a longitudinal direction in the left-right direction and a rectangular plate-shaped connecting plate portion 101 protruding forward from the upper edge of the mounting plate portion 100 as a metal. The plate is integrally formed by bending (see FIGS. 1 and 4).

  A long hole-shaped mounting hole 1000 passes through the left and right ends of the mounting plate portion 100 (see FIG. 4B). Then, bolts (not shown) provided on the walls are respectively inserted into the attachment holes 1000, and nuts (not shown) are fastened to the respective bolts, whereby the attachment member 10 (the instrument body 1) is attached to the wall surface. Note that a plurality of hemispherical protrusions 1001 are provided on the mounting plate portion 100 so as to protrude rearward (see FIG. 1). That is, a gap is formed between the mounting plate portion 100 and the wall surface by the plurality of protrusions 1001 hitting the wall surface.

  The mounting plate 100 is provided with a plurality of circular insertion holes 1002 (see FIG. 4B). An electric wire (not shown) led out from the wall is inserted through these insertion holes 1002. Further, a plurality of terminal blocks 15 are attached to the front surface of the attachment plate portion 100. Each terminal block 15 is attached to the attachment plate portion 100 by fitting attachment feet 150 into attachment holes (not shown) provided in the attachment plate portion 100. That is, the gap formed by the protrusion 1001 becomes a space for allowing the mounting leg 150 to escape (see FIG. 1).

  An electric wire inserted into the insertion hole 1002 is connected to these terminal blocks 15. The central terminal block 15 is connected to the lamp socket 40 via an electric wire 41. That is, power is supplied from the commercial AC power source to the lamp socket 40 via the electric wire 41 and the central terminal block 15, and the LED bulb 4 mounted on the lamp socket 40 is turned on.

  The connecting plate portion 101 has one screw hole (not shown) at each of both ends and the center in the longitudinal direction (left-right direction).

  The holding member 11 includes a rectangular plate-like holding plate portion 110 having a left-right direction as a longitudinal direction and a rectangular plate-like fixing plate portion 111 protruding rearward from the rear end of the holding plate portion 110, and is formed by extrusion molding of an aluminum material. Are integrally formed. The length dimension of the holding member 11 in the longitudinal direction (left-right direction) is preferably the same as the length dimension of the mounting member 10 in the longitudinal direction.

  The fixed plate portion 111 is provided with one screw hole (not shown) at each of both ends and the center in the longitudinal direction (left-right direction). Then, the fixing plate portion 111 is overlaid on the connecting plate portion 101 of the mounting member 10, and the mounting screws 16 are screwed into the screw holes of the fixing plate portion 111 and the screw holes of the connecting plate portion 101, respectively. Are connected to the holding member 11 (see FIG. 1).

  The holding plate portion 110 has a rear end portion connected to the fixed plate portion 111 having a thickness dimension equivalent to that of the fixed plate portion 111, and most of the thickness excluding the rear end portion is larger than the fixed plate portion 111. Is formed. In addition, a rectangular plate-shaped fixing piece 112 protrudes upward along the thickness direction of the holding plate portion 110 from the front end of the holding plate portion 110 (see FIG. 1). Note that the holding plate portion 110 is formed so as to be inclined obliquely downward with respect to the fixed plate portion 111 in a state where the instrument body 1 is attached to the wall surface.

  The three upper LED modules 2 are attached to the upper surface of the holding plate part 110 using a plurality of fixtures 22 (see FIGS. 1 and 3). These fixtures 22 are made of a synthetic resin molded body having a rectangular plate shape, and are sandwiched between the end portion of the mounting substrate 21 and the upper surface of the holding plate portion 110 while being screwed to the holding plate portion 110. (See FIG. 1).

  The two lower LED modules 3 are attached to the left and right ends of the lower surface of the holding plate 110 using a plurality of attachments 32. Note that these fixtures 32 are the same components as the fixture 22. That is, the fixture 32 is sandwiched between the end of the mounting substrate 31 and the lower surface of the holding plate 110 while being screwed to the holding plate 110 (see FIG. 1).

  Furthermore, the sub holding plate portion 113 is screwed to the fixing piece 112 of the holding member 11 (see FIG. 1). The sub-holding plate portion 113 is formed in a rectangular plate shape whose longitudinal direction is the left-right direction. Further, the rear end portion of the auxiliary holding plate portion 113 is bent into a V shape when viewed from the longitudinal direction. Then, the rear end portion bent into the V shape is screwed to the fixing piece 112. Two power supply devices (power supply units) 7 are respectively screwed to the left and right ends of the upper surface of the sub-holding plate portion 113 (see FIGS. 1 and 3).

One power supply device 7 preferably lights up the three upper LED modules 2, and the other power supply device 7 lights up the two lower LED modules 3. These two power supply devices 7 have a power supply board 70 and a storage case 71 for storing the power supply board 70. The power supply board 70 is formed of a printed wiring board formed in a rectangular plate shape that is long in the front-rear direction. The printed wiring board includes circuit components (for example, a transformer) necessary for generating at least the lighting power of the LED chips 20 and 30. And diodes, capacitors, etc.). The power supply board 70 has one or two terminal blocks 72 mounted on both ends in the longitudinal direction, and the input wires, the output wires, and the like are connected to the power supply substrate 70 via the terminal blocks 72. Electrically connected to circuit components. These terminal blocks 72 are exposed to the outside from both longitudinal ends of the storage case 71 (see FIGS. 1 and 3).
Here, it is preferable that the two first reflecting portions 12, the two second reflecting portions 13, and the one third reflecting portion 14 are attached to the holding member 11 of the instrument body 1 (FIGS. 1 and 3). 3A). The first reflection unit 12 and the second reflection unit 13 are both configured to control the light distribution of the lower LED module 3, and the third reflection unit 14 is configured to control the light distribution of the upper LED module 2.

  The first reflecting unit 12 includes a first reflecting plate 120, a pair of side plates 121, and a fixed plate 122. The first reflecting plate 120, the pair of side plates 121, and the fixing plate 122 are preferably formed integrally by bending a metal plate.

  The first reflecting plate 120 is formed in a rectangular plate shape whose longitudinal direction is the left-right direction. The length dimension in the longitudinal direction of the first reflector 120 is preferably larger than the length dimension in the longitudinal direction of the lower LED module 3. The pair of side plates 121 has a trapezoidal shape and is formed so as to protrude forward from both longitudinal ends of the first reflecting plate 120 along the normal direction of the reflecting surface of the first reflecting plate 120. The fixing plate 122 is formed so as to protrude rearward from the upper end edge of the first reflecting plate 120 along the normal direction of the reflecting surface of the first reflecting plate 120. However, the fixing plate 122 is bent in a stepped manner to avoid the fixture 32. The first reflecting portion 12 is screwed to the holding plate portion 110 of the holding member 11 at the rear end portion of the fixed plate 122 (see FIG. 1).

  The second reflecting unit 13 includes a second reflecting plate 130 and a fixed plate 131. The second reflector 130 and the fixed plate 131 are preferably formed integrally by bending a metal plate.

  The second reflecting plate 130 is formed in a rectangular plate shape with the left-right direction as the longitudinal direction, and the lower end portion is bent and raised forward. The length dimension of the second reflecting plate 130 in the longitudinal direction is preferably larger than the length dimension of the lower LED module 3 in the longitudinal direction. The fixing plate 122 is formed to protrude forward from the upper end edge of the second reflecting plate 130. The second reflecting portion 13 is screwed to the holding plate portion 110 of the holding member 11 at both ends in the longitudinal direction of the fixed plate 131 (see FIG. 1).

  The third reflecting portion 14 includes a third reflecting plate 140 and a fixed plate 141. The third reflector 140 and the fixed plate 141 are preferably formed integrally by bending a metal plate.

  The third reflector 140 has a rectangular plate shape with the left-right direction as the longitudinal direction, and is bent along the storage case 71 of the power supply device 7 in the short direction (front-rear direction) (see FIG. 1). The fixing plate 141 is formed so as to protrude rearward from the rear end edge of the third reflecting plate 140. The third reflecting portion 14 is screwed to the fixing piece 112 of the holding member 11 together with the sub holding plate portion 113 at both ends of the fixing plate 141 in the longitudinal direction.

  Here, end fittings 8 are respectively attached to both ends of the instrument body 1 in the left-right direction (longitudinal direction) (see FIGS. 1 and 3). These two end fittings 8 are formed in a flat plate shape, and are fixed to the holding plate portion 110 by screwing. The two end fittings 8 are mirror images of each other when viewed from the longitudinal direction.

  The cover 5 includes an upper wall 50, a lower wall 51, and a front wall 52, and is formed in a rectangular tube shape in which both left and right ends and a rear surface are open. The upper wall 50 is preferably formed in a flat rectangular plate shape by a transparent synthetic resin material (for example, acrylic resin). On the other hand, the lower wall 51 and the front wall 52 are made of an opaque synthetic resin material or a synthetic resin material having a sufficiently lower transmittance for visible light than the synthetic resin material forming the upper wall 50 (for example, a diffusing agent is mixed). Acrylic resin) is preferably formed into a flat rectangular plate shape.

  The upper wall 50 includes a transmission part 500 and a light guide part 501. The light guide portion 501 is a rear end portion of the upper wall 50 and is a portion that rests on the fixing plate portion 111 of the instrument body 1 and is fixed by the mounting screw 16. Further, the transmission unit 500 includes a first region 5000 in which a prism is formed on the lower surface and a second region 5001 in which no prism is formed, and the first region 5000 is provided on the rear side (wall surface side). A second region 5001 is provided on the front side (see FIG. 1).

  Further, the first region 5000 is divided into two regions having different prism shapes in the front-rear direction. The rear area (rear first area 5000A) is mainly configured to distribute light from the upper LED module 2 to the wall surface. The front area (front first area 5000B) is mainly configured to distribute light from the upper LED module 2 to the ceiling surface.

  The lower wall 51 is configured to incline downward toward the rear. Further, a recess recessed inwardly (obliquely upward) is formed on the rear end side of the lower wall 51. Hereinafter, the front wall of the recess is referred to as a first side wall 510, the rear wall of the recess is referred to as a second side wall 511, and the upper wall of the recess is referred to as a bottom wall 512.

  It is preferable that the first side wall 510 and the second side wall 511 are inclined such that the lower end is located rearward with respect to the upper end. Note that the first side wall 510 and the second side wall 511 are formed of the same material as the portion other than the recess of the lower wall 51.

  On the other hand, the bottom wall 512 is preferably formed into a curved surface (for example, a cylindrical surface) projecting outward by a material common to the upper wall 50 (a synthetic resin material having translucency).

  As shown in FIGS. 1 and 3, the cover 5 is attached to the instrument main body 1 by screwing the light guide portion 501 of the upper wall 50 to the fixing plate portion 111 with the attachment screw 16. When the cover 5 is attached to the instrument body 1, the LED chip 20 of the upper LED module 2 faces the transmission part 500 of the upper wall 50, and the LED chip 30 of the lower LED module 3 is the bottom of the lower wall 51. Opposite the wall 512. The LED bulb 4 is disposed behind the second side wall 511 (see FIG. 5).

  Further, end caps 6 are attached to the left and right end fittings 8 (see FIGS. 2 and 3). The end cap 6 is made of a synthetic tree material having no translucency, and is formed in a prismatic shape in which either the left or right side and the rear surface are open. However, the two end caps 6 have a mirror image relationship, and one end cap 6 is attached to the left end fitting 8 and the other end cap 6 is attached to the right end fitting 8.

  Next, operation | movement of the lighting fixture of this embodiment is demonstrated.

  The lighting fixture of this embodiment is comprised so that the upper side LED module 2, the lower side LED module 3, and the LED light bulb 4 may be lighted separately, respectively. For example, when illuminating the entire space such as a hospital room or a guest room, it is preferable that only the three upper LED modules 2 or both the three upper LED modules 2 and the two lower LED modules 3 are lit. Moreover, when a sick person or a customer reads a book on a bed, it is preferable that only the two lower LED modules 3 are lit. Furthermore, it is preferable that only the LED bulb 4 is lit as a night light while the sick person or the customer is sleeping.

  Here, the light distribution of the upper LED module 2 will be described with reference to FIG.

  A part of the light emitted from the LED chip 20 is transmitted to the outside through the transmission part 500 of the upper wall 50 of the cover 5. At this time, the light transmitted through the second region 5001 of the transmission unit 500 is transmitted through the second region 5001 (transmission unit 500) and applied to the front ceiling away from the wall surface. However, the light reflected from the lower surface of the second region 5001 among the light is reflected by the third reflector 140 of the third reflector 14 and then radiated to the outside through the second region 5001. . Further, the light that is directly reflected by the third reflecting plate 140 is transmitted through the transmission unit 500 and irradiated onto the wall surface.

  In addition, the light transmitted through the first region 5000 of the transmission unit 500 is diffused in various directions and emitted to the outside. For example, light that passes through the first region 5000B on the front side is mainly applied to the front ceiling surface. Furthermore, the light transmitted through the first region 5000A on the rear side is mainly applied to the wall surface and the ceiling surface near the wall surface.

  Further, a part of the light emitted from the LED chip 20 is guided rearward by the light guide portion 501 of the upper wall 50 of the cover 5 and irradiated onto the wall surface. Here, the fixed plate portion 111 of the holding member 11 exists under the light guide portion 501. Therefore, the light emitted from the lower surface of the light guide unit 501 is reflected by the upper surface of the fixed plate unit 111 and then passes through the light guide unit 501 and is irradiated onto the wall surface. Therefore, in the lighting fixture of this embodiment, the light guided to the light guide portion 501 of the cover 5 is irradiated to a position near the fixture body 1 on the wall surface. As a result, it is possible to improve the light uniformity on the wall surface.

  As described above, the lighting fixture of the present embodiment includes the light source (upper LED module 2), the fixture main body 1 that holds the light source, and the cover 5 that is attached to the fixture main body so as to cover the light source. The instrument body 1 includes a holding member 11 that holds a light source, and an attachment member 10 that supports the holding member 11 and is attached to an attachment surface (wall surface) of a construction material (wall). The holding member 11 holds the light source so that the optical axis of the light source is tilted away from the mounting surface. The cover 5 includes a transmission unit 500 that transmits light emitted from the light source, and a light guide unit 501 that extends from the transmission unit 500 toward the mounting surface (wall surface) and guides the light toward the mounting surface. Have.

  Since the lighting fixture of this embodiment is comprised as mentioned above, a part of light radiated | emitted from a light source (upper LED module 2) is light-guided to the light guide part 501, and the fixture main body 1 of a mounting surface (wall surface) Irradiated to a position close to. As a result, the lighting fixture of the present embodiment can improve the uniformity of light on the surface (wall surface) irradiated with light.

  Further, in the lighting apparatus of the present embodiment, the transmission unit 500 includes a first region 5000 that diffuses the light, and a light guide unit that has a higher transmittance of the light than the first region 5000 and has a light guide relative to the first region 5000. It is preferable to have a second region 5001 on the side far from 501.

  If the lighting fixture of the present embodiment is configured as described above, the light transmitted through the second region 5001 is efficiently radiated to the ceiling surface away from the wall surface. The uniformity of light on the surface can also be improved.

  Next, the light distribution of the lower LED module 3 will be described with reference to FIG.

  Most of the light emitted from the LED chip 30 passes through the bottom wall 512 and is emitted to the outside. Further, part of the light emitted from the LED chip 30 is reflected by the reflecting surfaces of the first reflecting plate 120 and the second reflecting plate 130, and then is transmitted through the bottom wall 512 and radiated to the outside.

  Part of the light transmitted through the bottom wall 512 is directly irradiated onto the wall surface. Further, a part of the light is reflected on the outer surface of the second side wall 511 and is irradiated on the wall surface and the floor surface (or bed). Further, a part of the light is reflected on the outer surface of the first side wall 510, and then reflected directly or on the second side wall 511 to be irradiated on the wall surface and the floor surface (or bed).

  Here, the cover 5 in the present embodiment is disposed at a position opposite to the second side wall 511 and the second side wall 511 that reflects the light emitted from the lower LED module 3 in a direction away from the wall surface. And a first side wall 510 that reflects in a direction toward the second side wall 511. Further, the first side wall 510 is inclined so as to approach the wall surface as the distance from the lower LED module 3 increases. Further, the first side wall 510 has a width dimension (width dimension in the vertical direction) along the optical axis (the optical axis of the lower LED module 3) smaller than the width dimension along the optical axis of the second side wall 511. Is formed.

  That is, since the first side wall 510 is inclined so as to approach the wall surface as the distance from the lower LED module 3 increases, the bottom wall 512 is difficult to enter the view of a person lying on the bed. Therefore, the lighting fixture of this embodiment can suppress glare when viewed from below.

  Moreover, the light radiated | forwards among the light of the lower LED module 3 will decrease, so that the said width dimension of the 1st side wall 510 becomes large. On the other hand, in the lighting fixture of this embodiment, since the width dimension of the first side wall 510 is formed to be smaller than the width dimension of the second side wall 511, the first side wall 510 is reflected by the second side wall 511 and then the first side wall 510 is reflected. The light irradiated forward without being blocked by the side wall 510 increases. As a result, the lighting fixture of the present embodiment can improve efficiency (lighting fixture efficiency).

  Here, when the bottom wall 512 is flat, the ratio that the light of the lower LED module 3 is reflected by the incident surface (upper surface) of the bottom wall 512 increases. Therefore, if the bottom wall 512 is formed in a curved shape that protrudes outward, preferably in a cylindrical shape, the rate at which the light of the lower LED module 3 is reflected by the incident surface (upper surface) of the bottom wall 512 is reduced. Further improvement in efficiency can be achieved.

  Finally, the light distribution of the LED bulb 4 will be described with reference to FIGS. 5 and 7. The LED bulb 4 is in the center of the instrument body 1 in the longitudinal direction, the lower LED module 3 is not present in front, and the holding plate portion 110 of the holding member 11 is present. Therefore, the light emitted forward from the light emitted from the LED bulb 4 is reflected by the surface (lower surface) of the holding plate part 110 and then transmitted through the bottom wall 512 to be emitted to the outside. The light distribution of the light transmitted through the bottom wall 512 is similar to the light distribution of the lower LED module 3 described above.

  In addition, among the light emitted from the LED bulb 4, a part of the light emitted from other than the front is reflected by the surface of the holding plate part 110 and is transmitted through the bottom wall 512. In addition, when the lower wall 51 (second side wall 511) is formed by mixing a diffusing agent in a translucent synthetic resin material, a part of the light emitted from the LED bulb 4 is transmitted through the second side wall 511. And radiated to the outside.

1 Instrument body 2 Upper LED module (light source)
DESCRIPTION OF SYMBOLS 5 Cover 10 Attachment member 11 Holding member 500 Transmission part 501 Light guide part 5000 1st area | region 5001 2nd area | region

Claims (2)

A light source, an instrument body holding the light source, and a cover attached to the instrument body so as to cover the light source,
The instrument body includes a holding member that holds the light source, and an attachment member that supports the holding member and is attached to the attachment surface of the construction material,
The holding member holds the light source so as to tilt the optical axis of the light source away from the mounting surface;
The cover includes a transmission portion that transmits light emitted from the light source, and a light guide portion that extends from the transmission portion toward the mounting surface and guides the light toward the mounting surface. Lighting equipment characterized by   The transmission unit includes a first region that diffuses the light, and a second region that has a higher light transmittance than the first region and is located on a side farther from the light guide unit than the first region. The lighting apparatus according to claim 1, wherein:

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