JP6534534B2 - Bathroom lighting system - Google Patents

Description

  The present invention relates to a bathroom lighting device.

  What used LED (Light Emitting Diode) as a light source as a bathroom lighting apparatus is prevailing. Since the LED is highly directional, the range in which light can be emitted is relatively narrow. Therefore, when the LED lighting apparatus is disposed on the wall surface, the light distribution is such that the front of the LED lighting apparatus is mainly illuminated.

By the way, in a bathroom, it is difficult to attach a lighting fixture to a ceiling because a dryer heater is attached to the ceiling and piping for ventilation is passed through the ceiling. Under such circumstances, the bathroom lighting device is generally mounted on the central front wall of the washing place.
Therefore, in the conventional LED-type bathroom lighting, there was a problem that it was dark under the lighting fixture when washing the face in the washing place or looking at the mirror. There is also a problem that glare occurs because the LED light is irradiated from the front of the lighting apparatus.

  In order to solve this, illumination light is irradiated from the wall on the side opposite to the side where there are many users in the bathroom, that is, the side where the mixing faucet, shower, bathroom mirror, etc. are present, and the reflecting mirror installed on the opposing wall In the bathroom lighting device, soft indirect lighting is performed by changing the irradiation angle.

  In addition, the luminaire itself is attached along the wall, and by arranging the light source (lamp) downward in the glove, a bathroom lighting device designed to obtain a light distribution in which the lower side of the bathroom is the illumination area Have also been proposed (see, for example, Patent Document 2).

  Moreover, the LED lighting apparatus which arrange | positioned a lens in a glove | globe and adjusted light distribution, and having a wide range irradiation prevent a person's eyes from being dazzled is proposed (for example, refer patent document 3).

Japanese Utility Model Application Publication No. 4-110860 JP-A-7-296631 JP, 2006-302538, A

However, in the bathroom lighting device of Patent Document 1, the reflector has a large number of projecting portions into the bathroom, and the appearance is bad.
Moreover, in the bathroom lighting device of Patent Document 2, the upper space is extremely dark and the atmosphere and appearance of the bathroom are poor.
Further, in the LED illumination device of Patent Document 3, since the light distribution changing lens for optics is expensive, the cost is too high and it is not suitable for ordinary bathroom use.

  The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a bathroom lighting device capable of obtaining a light distribution suitable for a bathroom at low cost without loss of appearance while applying an LED to a light source. I assume.

  In order to achieve the above object, a bathroom lighting device according to the present invention is a bathroom lighting device (for example, a bathroom lighting device 10 described later) attached to a wall (for example a wall 4a described later) of a bathroom A substrate (for example, a substrate 11 described later), a plurality of LED chips (for example, an LED chip 12 described below) disposed on the substrate, and the plurality of LED chips mounted on the substrate Provided in the vicinity of at least one of the LED chips (for example, a part of them including the LED chips 12a and 12b described later) to emit light from the LED chips in the floor direction of the bathroom ( And a metal reflector (for example, a reflector 15 described later) having a reflecting piece (for example, a reflection member 14 described later) to be reflected toward the

  The reflector is an upper reflection piece provided above the at least one LED chip of the LED chips as the reflection piece (for example, a first group of reflection pieces 141, 141 described later; a fourth group of reflection pieces 144, 144) and a lower reflecting piece (for example, a second group of reflecting pieces 142, 142; a third group of reflecting pieces 143, 143) provided below the LED chip .

  Moreover, it is preferable that the said reflector is fastened on the said board | substrate by metal screw (For example, below-mentioned screw 151a, 151b).

  Preferably, the plurality of LED chips include an LED chip in which the reflective piece is not provided in the vicinity thereof.

  According to the present invention, it is possible to embody a bathroom lighting device that can provide a light distribution suitable for a bathroom at low cost without degrading the appearance while applying an LED to a light source.

It is a figure showing the appearance of the bathroom to which the bathroom lighting device as one embodiment of the present invention is applied. It is an exploded perspective view of a bathroom lighting device as one embodiment of the present invention. It is a figure showing the appearance of the process process of the reflector of the bathroom lighting apparatus of FIG. It is a figure showing the state which attached the reflector to the board | substrate in the bathroom lighting apparatus of FIG. It is a conceptual diagram for demonstrating the effect | action of the reflective piece in the reflector of FIG. It is a figure showing the light distribution condition of the bathroom to which the bathroom lighting apparatus of FIG. 2 is applied. It is a figure showing the thermal radiation effect in the bathroom lighting apparatus of FIG.

Hereinafter, the present invention will be clarified by describing in detail the embodiments of the present invention with reference to the drawings.
FIG. 1: is a figure showing the mode of the bathroom which applied the bathroom lighting apparatus as one Embodiment of this invention.
A bathtub 2 and a washing place 3 are provided in the bathroom 1. A vertically elongated mirror 5 is provided on the wall surface 4a of the far side front of the washing place 3 in a view where the bathtub 2 is on the left and the washing place 3 is on the right, and the mixing faucet 6 is installed below the mirror 5 There is. A showerhead 8 is connected to the mixing faucet 6 via a shower hose 7. The showerhead 8 is configured to be able to be hooked on a shower hook 9 provided with a wall surface 4a.

  A bathroom lighting device 10 according to an embodiment of the present invention is attached to a position above the mirror 5 of the wall surface 4a and slightly below the ceiling 4b. In the posture where the bathroom lighting device 10 is attached to the wall surface 4a, the vertically upper side (ceiling 4b side) is referred to as the upper side of the bathroom lighting device 10, and the vertically lower side (the washing place 3 side) is referred to as the lower side of the bathroom lighting device 10.

FIG. 2 is an exploded perspective view of a bathroom lighting device according to an embodiment of the present invention.
In FIG. 2, the upper side of the paper surface is above the bathroom lighting device 10 in the above-described definition.
The bathroom lighting device 10 of FIG. 2 schematically includes a housing 16, an LED module 13 attached to the front end face 16 a of the housing 16, and a reflector 15 fastened to a substrate 11 of the LED module 13. A cover 17 covering the LED module 13 and the reflector 15 is configured.

More specifically, the bathroom lighting device 10 is mounted on the substrate 11, the plurality of LED chips 12 disposed on the substrate 11, and the substrate 11, and at least one of the plurality of LED chips 12 A plurality of LED chips 12a and 12b, which will be described later, are provided in the vicinity of the LED chips 12a and 12b to reflect light emitted from the LED chips in the floor direction of the bathroom 1 (that is, substantially in the direction of the washing place 3) A metal reflector 15 having a reflecting piece 14 is provided. The reflecting pieces 14 are divided for convenience as the reflecting pieces 141 of the first group, the reflecting pieces 142 of the second group, the reflecting pieces 143 of the third group, and the reflecting pieces 144 of the fourth group, which will be described later.
The reflector 15 is fastened to the substrate 11 by metal screws 151a and 151b. Screw holes 150a and 150b are drilled in the reflector 15 corresponding to the screws 151a and 151b, and screw holes 11a and 11b (in FIG. 2, 11b can not be seen) are drilled in the substrate 11.

In this embodiment, a plurality of LED chips 12 are disposed on the substrate 11 to constitute the LED module 13. The substrate 11 is a resin-made disk, and the substrate 11 is attached to the front end face 16 a of the substantially cylindrical casing 16.
The circumferential surface 16b of the housing 16 is tapered so as to have a slightly larger diameter from the front end face 16a side to the rear. The base portion 16c which is the rearmost portion of the circumferential surface 16b has a step portion 16d and is larger in diameter than the front portion. The base portion 16 c is mounted in contact with the wall surface 4 a of the bathroom 1.
Further, a lighting circuit for lighting the LED chip 12 is provided inside the housing 16.

A cover 17 is attached to the front end face 16 a side of the housing 16 so as to cover the LED module 13 and the reflector 15. That is, the cover 17 is detachably attached to the front end face 16 a side of the housing 16 by appropriate engagement means (not shown) or the like. The cover 17 in the present example is dome-shaped as shown.
On the other hand, the plurality of LED chips 12 in the substrate 11 which is a resin-made disk is circumferentially arranged in each annular region of the inner circumferential annular region 121 and the outer circumferential annular region 122 assumed around the center O of the substrate 11 Arranged at intervals. In other words, the plurality of LED chips 12 are arranged in the radial direction from the center O of the substrate 11.

FIG. 3 is a view showing a process of processing a reflector of the bathroom lighting device of FIG. Also in this FIG. 3, the upper side of the paper surface is above the bathroom lighting device 10 in the above-mentioned definition.
The reflector 15 in the state of FIG. 3 has a flat plate shape before the plurality of reflecting pieces 14 are bent at predetermined angles with respect to the main surface of a metal plate such as stainless steel which is a material of the reflector 15. It is a thing.

As easily understood by referring to FIGS. 2 and 3 together, the plurality of reflecting pieces 14 have each predetermined portion of the flat plate-like metal plate which is a material of the reflector 15 fixed to the main surface of the metal plate. It is bent and formed so as to make an angle of.
As shown in FIG. 3, this flat metal plate includes a portion of a virtual curve (shown by a two-dot chain line) connecting the lower concavo-convex portion, and the outer shape as a whole is substantially circular in front view.

In the reflector 15 in this example, the outer peripheral edge of the portion above the virtual line D connecting the centers of the screw holes 150a and 150b described above with reference to FIG. 2 has a substantially semicircular arc shape. The inner portion of the roughly semicircular outer peripheral edge is referred to as an upper semicircular portion 15U for convenience.
A portion along the periphery of the upper semicircular portion 15U forms an outer bridge portion 15a connecting a plurality of (five in the illustrated case) reflecting pieces 14 in series at their base sides.
As illustrated, the outer bridge portion 15a is convex upward.

In the present example connected in series to the outer bridge portion 15a on the base side, in the present example, the five reflecting pieces 14 are referred to as the first group of reflecting pieces 141, 141 for convenience.
Neck portions 141a and 141a having a narrow width are respectively formed at portions where the first group of reflective pieces 141 and 141 are connected to the outer bridge portion 15a.
As shown in the drawing, the first group of reflecting pieces 141, 141 have an imaginary circle in which the tip end opposite to the base side thereof overlaps the upper semicircular portion 15U from the semi-circular outer bridge portion 15a, respectively. It extends inwardly towards the center 15v. The leading end sides of the first group of reflecting pieces 141, 141 terminate at an intermediate position toward the center 15v of the imaginary circle.

An upper inner bridge which is relatively concentric with the outer bridge portion 15a and has a relatively small diameter semicircular arc shape on the center 15v side of the virtual circle of a portion where each tip end side of the first group of reflecting pieces 141 ends. The portion 15b is formed. As illustrated, the upper inner bridge portion 15b is also convex upward.
The upper inner bridge portion 15b connects a plurality (three in the illustrated case) of reflecting pieces 14 in series at their base sides.
In the present example, which is continuously connected to the upper inner bridge portion 15b on the base side and connected in series, the three reflecting pieces 14 are referred to as second group reflecting pieces 142, 142 for convenience.
Neck portions 142a and 142a which are narrowed narrowly are respectively formed at portions where the second group of reflective pieces 142 and 142 are connected to the upper inner bridge portion 15b.

On the other hand, an envelope connecting the tip end sides of the outer peripheral reflection pieces below the imaginary line D connecting the centers of the screw holes 150a and 150b has a substantially semicircular arc shape. The inner portion of this generally semi-circular envelope is conveniently referred to as the lower semi-circular portion 15L.
The lower semicircular portion 15L is formed with a lower inner bridge portion 15c which is substantially concentric with the above-described upper inner bridge portion 15b and has a semicircular arc shape having substantially the same diameter. As illustrated, the lower inner bridge portion 15c is convex downward.

The lower inner bridge portion 15c connects a plurality (five in the illustrated case) of reflecting pieces 14 in series at their base sides.
In the present example, which is continuously connected to the lower inner bridge portion 15c on the base side and connected in series, the five reflecting pieces 14 will be referred to as the third group of reflecting pieces 143, 143 for convenience.
Neck portions 143a and 143a, which are narrow in width, are respectively formed at portions where the third group of reflective pieces 143 and 143 are connected to the lower inner bridge portion 15c.

As shown in the drawing, the third group of reflecting pieces 143, 143 have their distal end sides opposite to the base side extending radially outward from the semi-circular lower inner bridge portion 15c, respectively. The tip end sides of the third group of reflecting pieces 143, 143 terminate at the periphery of the lower semicircular portion 15L.
The lower semicircular portion 15L is slightly concentric with the lower inner bridge portion 15c slightly lower than an imaginary line D connecting centers of the screw holes 150a and 150b, and has a relatively small diameter semicircular arc bridge with a relatively small diameter. A portion 15d is formed. As illustrated, the center bridge portion 15d also has a generally downward convex shape.

The center bridge portion 15d connects a plurality of (three in the illustrated case) reflecting pieces 14 in series at their base sides.
In the present example, which is connected in series to the center bridge portion 15d on the base side, in the present example, the three reflecting pieces 14 are referred to as the fourth group of reflecting pieces 144, 144 for convenience.
Neck portions 144a and 144a having a narrow width are respectively formed at portions where the fourth group of reflecting pieces 144 and 144 are connected to the center bridge portion 15d.

  In the present embodiment, both the front and back sides of all the reflecting pieces constitute reflecting surfaces, but the reflecting pieces 141 and 141 of the first group described above, the reflecting pieces 142 and 142 of the second group, and the third group Of both the second group of reflective pieces 142, 142 and the third group of reflective pieces 143, 143 of the fourth group of reflective pieces 143, 143 and the fourth group of reflective pieces 144, 144. There are no functional problems if the faces are configured.

FIG. 4 is a view showing a state in which a reflector is attached to a substrate in the bathroom lighting device of FIG.
In particular, FIG. 4 shows the state in a front view in which the positional relationship between each LED chip 12 on the substrate 11 and each reflecting piece 14 of the reflector 15 becomes clear.
In FIG. 4, the parts corresponding to those in FIG. 2 and FIG. 3 described above are given the same reference numerals.
The reflector 15 in the state of FIG. 4 is bent so that the plurality of reflecting pieces 14 make respective predetermined angles with respect to the main surface of the metal plate which is the material of the reflector 15, and one component of the bathroom lighting device 10 As a completed form.

  Among the LED chips 12 arranged in plural on the substrate 11, the five LED chips 12 arranged in the outer circumferential side annular region 122 in the upper half of the substrate 11 are described in the first group 5 of the first group described with reference to FIG. Two reflecting pieces 141, 141 correspond to each other.

  On the other hand, with regard to the five LED chips 12 arranged in the inner circumferential side annular region 121 in the upper half of the substrate 11, the odd three in the arc-shaped array thereof have already been described with reference to FIG. The three reflective pieces 142, 142 of the second group correspond to each other. That is, among the five LED chips 12 arranged in the upper half inner circumferential side annular region 121, the two LED chips 12 other than the above-mentioned three odd-numbered ones (that is, the even-numbered ones in their arcuate arrangement) , The corresponding reflector is not provided.

  Further, with regard to the five LED chips 12 arranged in the outer peripheral side annular region 122 in the lower half of the substrate 11, the five reflecting pieces 143, 143 of the third group described above with reference to FIG. There is.

  On the other hand, with regard to the five LED chips 12 arranged in the inner circumferential side annular region 121 in the lower half of the substrate 11, the three odd-numbered ones in the arc-shaped array thereof have already been described with reference to FIG. Three reflecting pieces 144 of the fourth group correspond to each other. That is, among the five LED chips 12 arranged in the lower half inner circumferential side annular region 121, the two LED chips 12 other than the above-mentioned three odd-numbered ones (that is, the even-numbered ones in their arcuate arrangement) , The corresponding reflector is not provided.

  As already described with reference to FIG. 3, the first group of reflective pieces 141 and 141, the second group of reflective pieces 142 and 142, the third group of reflective pieces 143 and 143, and the fourth group of reflective pieces Among the members 144, 144, at least the second group of reflective pieces 142, 142 and the third group of reflective pieces 143, 143 have their front and back sides forming a reflective surface.

  As a result, among the five LED chips 12 arranged in the outer circumferential side annular region 122 in the upper half of the substrate 11, the three odd ones (12a, 12a, 12a) in their arc-like arrangement Not only are the first group of reflective pieces 141 and 141 disposed as described above corresponding to the upper side of (the radial outside from the center 15v of the virtual circle), but also the lower side thereof (the virtual circle The second group of reflecting pieces 142, 142 are disposed in correspondence with the radial direction from the center 15v of

  Similarly, among the five LED chips 12 arranged in the inner circumferential annular area 121 of the lower half of the substrate 11, the three odd-numbered ones (12b, 12b, 12b) in their arc-like arrangement are those Not only the fourth group of reflecting pieces 144, 144 are disposed as described above corresponding to the upper side of the (the above-mentioned imaginary circle corresponding to the radial direction from the center 15v of the above-mentioned imaginary circle) The third group of reflecting pieces 143, 143 are arranged in correspondence with the radial direction from the center 15v of.

In other words, focusing on the form of the reflector 15, the reflector 15 is an LED chip 12a, 12a, 12a, and 12b, 12b, which is at least a specific part of the LED chip 12 corresponding to the LED. The upper and lower reflectors 12 b are located at the upper and lower sides to reflect the light emitted from the LED.
That is, corresponding to the LED chips 12a, 12a, 12a, the upper reflecting pieces correspond to the first group of reflecting pieces 141, 141, and the lower reflecting pieces correspond to the second group of reflecting pieces 142, 142. Do.
In addition, corresponding to the LED chips 12b, 12b and 12b, the upper reflecting pieces correspond to the reflecting pieces 144 and 144 of the fourth group, and the lower reflecting pieces correspond to the reflecting pieces 143 and 143 of the third group. Do.
Further, as described above, among the plurality of LED chips 12 on the substrate 11 of the LED module 13, the even-numbered LED chips 12 arranged in an arc shape in the inner circumferential annular region 121 of the upper half of the substrate 11 And the even-numbered LED chips 12 arranged in an arc shape in the inner circumferential side annular region 121 in the lower half of the substrate 11, the LED chips 12 not provided with the corresponding reflective pieces are included. .

Next, with reference to FIGS. 1 to 4 together with FIGS. 5 to 7, the effects of the bathroom lighting device according to the embodiment of the present invention will be described.
FIG. 5 is a conceptual diagram for explaining the action of the reflecting piece in the reflector of FIG.
Part (A) of FIG. 5 represents the light distribution of the LED when the reflector (reflecting piece) is not provided, and part (B) of the LED chip 12 when the reflector 15 (reflecting piece 14) is provided. It represents light distribution.
Particularly in the part (B) of FIG. 5, the upper reflecting strip is represented by one of the specific LEDs (12a, 12a, 12a and 12b, 12b, 12b) described above, which is located at the upper center. And a portion in which the lower reflecting piece is disposed.
On the other hand, FIG. 6 is a figure showing the light distribution condition of the bathroom to which the bathroom lighting apparatus of FIG. 2 is applied.

When the reflector 15 (reflecting piece 14) is not provided, light emitted from the LED chip 12 has a light distribution which mainly illuminates the front as shown in FIG. 5A. For this reason, as shown in part (A) of FIG. 6, the area 3a immediately below the bathroom lighting device 10 of the washing place 3 for washing and washing the face in the bathroom becomes dark.
In the case where the reflector 15 (reflecting piece 14) is provided, as shown in part (B) of FIG. 5, the light emitted from the LED chip 12 is a reflecting piece in which most of the light is the upper reflecting piece. It is reflected by the lower surface of 14 and goes downward. For this reason, as shown in part (B) of FIG. 6, the light distribution is such that the light rays mainly illuminate the floor direction of the bathroom (washing side of the bathroom), and the problem of darkening the above-mentioned area 3a is solved. Do.

  As can be easily understood with reference to part (B) of FIG. 5, a part of the outgoing light directed downward from the upper LED chip 12 is reflected by the upper surface of the lower reflecting piece 14 which is the lower reflecting piece. Head upwards. A part of the light rays directed upward in this manner illuminates the ceiling 4 b of the bathroom 1. For this reason, the inside of the bathroom 1 becomes appropriate brightness by the gentle indirect illumination by the reflected light from the ceiling 4b.

  Further, as already described with reference to FIG. 4, no corresponding reflective pieces are provided for some of the LED chips 12 on the substrate 11. For this reason, the emitted light from LED chip 12 in which these reflective pieces are not provided becomes a light distribution which mainly illuminates the front side. For this reason, even if the light distribution characteristic is changed downward as the majority by the reflector 15 (reflecting piece 14), the brightness on the front side is appropriately secured.

All in all, the light distribution characteristic of the light emitted from the LED chip 12 is changed by the action of the reflector 15 (reflecting piece 14), and the ideal light distribution characteristic as a lighting device for a bathroom is realized.
Moreover, in order to realize such an ideal light distribution characteristic, it is not necessary to provide a projection (reflecting mirror) into the bathroom as in the prior art, and the appearance is not lost.
Furthermore, since the illuminance in the upper space is also appropriately secured, it does not become extremely dark and the atmosphere and appearance of the bathroom are not impaired.
In addition, since it does not require expensive parts such as a light distribution changing lens for optical use, it is inexpensive and is suitable for ordinary bathroom applications.

In addition, as described in detail with reference to FIG. 3, each reflecting piece 14 in the reflector 15 is narrowed at a portion where its base is connected to the corresponding bridge portion (15a, 15b, 15c, 15d) Neck portions (141a, 142a, 143a, 144a) are formed.
For this reason, the neck portions (141a, 142a, 143a, 144a) are formed when each reflective piece 14 is bent at a predetermined angle with respect to the main surface of the plate-like member which is the material of the reflector 15. Since a certain limited area is easily bent, there is no fear that the main portion that should be flat to function as a reflective surface is deformed unnecessarily. Therefore, sufficient accuracy with respect to the reflection function is ensured, and the cost is low.

  In addition, since the reflector 15 is configured as a single component in which the plurality of reflecting pieces 14 are connected by the bridge portions (15a, 15b, 15c, 15d), the substrate 11 can be compared to the case where the reflecting pieces 14 are handled separately. The work of mounting on the is very simple.

Furthermore, since the reflector 15 of this example can be attached to the substrate 11 by the two metal screws 151a and 151b, this attachment is also extremely easy and efficient in assembly work.
On the other hand, since the reflector 15 is made of metal, it has the effect of radiating the heat of the substrate 11 of the LED chip 12. The fact that the two screws 151a and 151b are made of metal also contributes to heat dissipation. The heat radiation operation will be described next with reference to FIG.

FIG. 7 is a figure showing the heat dissipation effect in the bathroom lighting device of FIG. That is, it is the figure which compared the junction temperature of LED chip 12 on the board | substrate 11 in the state (left side) which has not attached the reflector 15 like FIG. 2 and the attached state (right side).
Part (A) of FIG. 7 represents the junction temperature of the LED chip 12 when 30 minutes have elapsed since the start of lighting. In the state where the reflector 15 is not attached (left side), the junction temperature rises to about 49.2 degrees Celsius, while in the state where the reflector 15 is attached (right side), the junction temperature is 47.2 degrees centigrade It stayed at about a degree.

  Part (B) of FIG. 7 represents the junction temperature of the LED chip 12 when 60 minutes have elapsed since the start of lighting. In the state where the reflector 15 is not attached (left side), the junction temperature rises to about 79.2 degrees Celsius, while in the state where the reflector 15 is attached (right side), the junction temperature is 77.2 degrees Celsius. It stayed at about a degree.

  Part (C) of FIG. 7 represents the junction temperature of the LED chip 12 when 120 minutes have elapsed since the start of lighting. In the state where the reflector 15 is not attached (left side), the junction temperature rises to 87.5 degrees Celsius, while in the state where the reflector 15 is attached (right side), the junction temperature is 87.0 degrees Celsius Stayed to the extent.

  Generally, even if the junction temperature of the LED changes by about 0.1 degree, the light emission efficiency is affected. Therefore, the characteristics shown in parts (A) to (C) of FIG. Means that the effect of improving the luminous efficiency is large.

The present invention is not limited to the above-described embodiment, and modifications and changes as long as the object of the present invention can be achieved are included in the present invention.
In the above embodiment, although the stainless steel reflector is used as the metal reflector, the present invention is not limited to this, and each predetermined portion of the flat metal plate which is a material of the reflector as the reflecting piece is mainly used for the metal plate Although what was bend | folded and shape | molded so that a fixed angle with respect to a surface may be made is applied, it is not limited to this.
Also, although the reflecting piece is made easy to bend by providing the neck portion, it may be possible to provide a folding line instead of the neck portion or together with the neck portion.
Furthermore, the plurality of LED chips are arranged in the radial direction from the center of the substrate, but may be arranged in a matrix. In this case, it goes without saying that the reflector should be shaped to conform to this arrangement.

1 ... bathroom 3 ... wash floor (floor)
4a ... wall surface 10 ... bathroom lighting device 11 ... board 12 ... LED
12a, 12b ... specific part of the LED
14 Reflective piece 15 Reflector 151a, 151b Screw 141 Reflective piece of the first group (upper reflective piece)
142: Reflecting piece of the second group (downward reflecting piece)
143 ... 3rd group of reflecting pieces (downward reflecting pieces)
144: Reflecting piece of the fourth group (upper reflecting piece)

Claims (4)

A bathroom lighting device attached to the wall of the bathroom,
A disk-shaped substrate,
A plurality of LED chips disposed on the substrate in a radiation direction from the center of the substrate ;
A metal mounted on the substrate and having a reflective piece provided in the vicinity of at least one of the plurality of LED chips to reflect light emitted from the LED chips toward the floor of the bathroom Equipped with a reflector,
The bathroom lighting device, wherein the reflector is bent so that a plurality of reflecting pieces form a predetermined angle with respect to the main surface of the reflector which is a metal plate.   The reflector has, as the reflecting piece, an upper reflecting piece provided above at least one of the plurality of LED chips, and a lower reflecting piece provided below the LED chip. A bathroom lighting device according to Item 1.   The bathroom lighting device according to claim 1, wherein the reflector is fastened on the substrate by a metal screw.   The bathroom lighting device according to any one of claims 1 to 3, wherein the plurality of LED chips include an LED chip in which the reflective piece is not provided in the vicinity thereof.

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