JP2019046548A - Lighting device - Google Patents

Abstract

To provide a lighting device capable of performing effective performance using hot water discharged from a water discharge part.SOLUTION: A lighting device 40 is assembled into an overhead shower part 30, wherein the overhead shower part comprises a plurality of water discharge ports 31B on an external surface, and is arranged on a ceiling panel 10A in a bathroom 10. An illumination unit 50 of the lighting device 40 has an illumination window 62 arranged on the external surface with the water discharge ports 31B in the overhead shower part 30, and light sources 51, 52 configured to radiate illumination light toward an upper surface of a wash place floor 10B through the illumination window 62. On the upper surface of the wash place floor 10B, an irradiation range is out of a water discharge range of hot water discharged from the overhead shower part 30, wherein the irradiation range has illuminance of 50% or less with respect to a maximum illuminance of illumination light radiated from the light sources 51, 52.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a lighting device.

  The shower device disclosed in Patent Literature 1 includes a ring-shaped shower body disposed on the user's head. The shower body includes a protective cover formed in a ring shape from a material that can transmit light, a plurality of outlets that pierce through the communication port of the protective cover and eject hot water in a ring shape, and a circumferential direction inside the protective cover A plurality of LEDs. When showering hot water from a spout, the shower device causes the shower body to shine in a ring shape by turning on the LED.

Japanese Patent No. 483680

  The shower apparatus of patent document 1 makes illumination light spread toward bathroom space via a protective cover by lighting LED at the time of shower use. Thereby, a shower apparatus produces the effect which gives a change in the atmosphere in bathroom space. However, the illumination light emitted from the LEDs provided in the shower body illuminates the hot water by partially irradiating the hot water ejected from the outlet, but also widely illuminates the space around the hot water. For this reason, only a simple illumination effect that uniformly illuminates the space around the shower body can be obtained, and it is difficult to enhance the effect of illumination light.

  The present invention has been made in view of the above-described conventional situation, and it is a problem to be solved to provide an illuminating device capable of performing an effective presentation using hot water discharged from a water discharger. Yes.

The lighting device of the present invention is
A lighting device that is assembled to a water discharge portion that is formed on a predetermined position in a bathroom and has a plurality of water discharge ports formed on the outer surface,
An illumination window disposed on an outer surface where the water discharge port is formed in the water discharge unit;
A light source that emits illumination light toward the floor of the bathroom through the illumination window;
Have
On the floor surface of the bathroom, the irradiation range in which the illuminance with respect to the maximum illuminance of the illumination light irradiated from the light source is 50% or less is outside the hot water discharge range discharged from the water discharge unit.

  In this lighting device, on the floor surface of the bathroom, the illumination light is such that the irradiation range in which the illuminance with respect to the maximum illuminance of the illumination light irradiated from the light source is 50% or less is outside the hot water discharge range discharged from the water discharge unit. Irradiate. As a result, most of the illumination light emitted from the light source falls within the water discharge range from the illumination window to the floor of the bathroom. Therefore, the illumination light from the light source is irradiated toward the floor surface along the spread of hot water from the illumination window to the floor surface of the bathroom. Therefore, the illumination light from the light source is concentrated and irradiated on the hot water, and an effective presentation can be performed in the bathroom space by the light spreading through the hot water.

It is explanatory drawing which shows the mode of the bathroom provided with the illuminating device which concerns on Example 1. FIG. FIG. 2 is a perspective view schematically showing an overhead shower part of FIG. 1. It is a bottom view explaining the state which removed the cover part from the overhead shower part of FIG. 1 is a perspective view schematically showing a lens unit according to Example 1. FIG. It is sectional drawing which cut | disconnected the lens unit of FIG. 4 along the longitudinal direction. It is sectional drawing which cut | disconnected the lens unit of FIG. 4 along the transversal direction. It is explanatory drawing which illustrates roughly each irradiation range of the illuminating device in the upper surface of a washroom floor. It is explanatory drawing which illustrates roughly each irradiation range of the illuminating device in the upper surface of a washroom floor, and the water discharge range of an overhead shower part. It is explanatory drawing which illustrates roughly the relationship between the illumination intensity distribution of the illumination light irradiated from the illuminating device in the upper surface of a washroom floor, and the water discharge range of an overhead shower part. It is explanatory drawing which illustrates schematically a mode that hot water is discharged from an overhead shower part while illuminating light is irradiated from an illuminating device in the bathroom of FIG.

  A preferred embodiment of the present invention will be described.

The lighting device of the present invention is
The illumination window may be disposed so as to be surrounded by the plurality of water discharge ports.
In this case, this illumination device can make the illumination window inconspicuous because the illumination window is covered with the hot water when hot water is being discharged from the water outlet. Therefore, when the illumination light is irradiated from the light source and the production is performed in the bathroom space, it is possible to prevent a decrease in aesthetic appearance due to the illumination window being visible.

  Next, Example 1 which actualized the illuminating device of this invention is demonstrated, referring drawings.

<Example 1>
FIG. 1 is an explanatory diagram illustrating a state of the bathroom 10 in which the lighting device 40 according to the first embodiment is provided. As shown in FIG. 1, the bathroom 10 includes a ceiling panel 10A, a washing floor 10B, and the like. The bathroom 10 has a bathroom space S defined by a ceiling panel 10A, a washing floor 10B, a plurality of wall panels, and the like. The bathroom 10 is formed with windows, bathroom entrances and the like (not shown). The bathroom 10 is provided with a bathtub 11, a bench counter 12, a washing place 13, a main lighting 14, a shower device 20, and a lighting device 40. In this specification, the direction in which the ceiling panel 10A and the washing floor 10B face each other is the vertical direction, and in the bathroom space S, the ceiling panel 10A side is the upper side, and the washing floor 10B side is the lower side.

  As shown in FIG. 1, the shower device 20 straddles the opposite wall panel that sandwiches the washing area 13 from the bathtub 11 and the ceiling panel 10 </ b> A that is connected to the wall surface. The shower device 20 includes an apparatus main body 21, an overhead shower part (corresponding to “a water discharge part” in the claims) 30, a hand shower part 22, and a currant part 23. The apparatus main body 21 is disposed on the wall panel. The overhead shower unit 30 is connected to the upper part of the apparatus main body 21 and is arranged in the upper part of the washing place 13 in the ceiling panel 10A. The hand shower unit 22 is connected to the side surface of the apparatus main body 21. The currant 23 is provided at the lower end of the apparatus main body 21.

  As shown in FIG. 1, the apparatus main body 21 has a column shape elongated in the vertical direction. The apparatus main body 21 accommodates hot water supply piping, valves, and the like. The apparatus main body 21 includes a plurality of operation units 21A. When the operation unit 21A performs on / off of water discharged from the overhead shower unit 30, the hand shower unit 22, and the currant unit 23, adjustment of a flow rate (amount of water discharged per unit time), adjustment of hot water temperature, and the like. To be operated.

  As shown in FIG. 1, the overhead shower unit 30 has a substantially rectangular parallelepiped shape that is elongated in a direction (horizontal direction) orthogonal to the vertical direction. As shown in FIGS. 2 and 3, the overhead shower unit 30 includes a water discharge member 31, a support member 32, and a cover member 33. The overhead shower section 30 is discharged by the operation section 21 </ b> A of the apparatus main body 21, and discharges hot water from a plurality of outlets 31 </ b> B (described later) provided in the water discharging member 31. The overhead shower unit 30 is provided with a lighting device 40 to be described later.

  As shown in FIG. 3, the water discharging member 31 has a longitudinal plate shape as a whole. The water discharge member 31 has a plurality of water discharge protrusions 31A, a water discharge port 31B, an intake hole 31C, and a plurality of screw insertion holes 31D. The plurality of water discharge protrusions 31 </ b> A have a cylindrical shape protruding from the lower surface of the water discharge member 31. The water discharge protrusion 31 </ b> A is formed with a water discharge port 31 </ b> B penetrating in a direction along the columnar protruding direction. The plurality of water discharge protrusions 31 </ b> A are formed on the lower surface of the water discharge member 31 so as to surround an intake hole 31 </ b> C and a lens unit 60 described later. The formation area AR1 (the area surrounded by the alternate long and short dash line shown in FIG. 3) where the water discharge protrusion 31A is formed on the lower surface of the water discharge member 31 has an oval shape that is long in the direction along the longitudinal direction of the water discharge member 31. In the formation region AR1, near the both ends (the left and right ends in the figure) in the longitudinal direction of the water discharging member 31, the width dimension (width in the short direction of the water discharging member 31) gradually decreases toward the both ends. The member 31 approaches the center in the width direction. The number of the plurality of water discharge ports 31 </ b> B gradually decreases toward both ends near the both ends in the longitudinal direction of the water discharge member 31.

  The plurality of water discharge protrusions 31A have a greater inclination in the water discharge direction in the width direction outward from the inner side in the width direction (short direction) in the formation region AR1. The hot water discharged from the plurality of water discharge protrusions 31A falls so as to spread outward. The hot water discharged from the plurality of water discharge protrusions 31A is evenly distributed inside the substantially circular water discharge range when reaching a predetermined height.

  The intake hole 31 </ b> C is a through-hole penetrating in the thickness direction at a substantially central position of the water discharge member 31. The intake hole 31C is surrounded by a plurality of water discharge ports 31B.

  The plurality of screw insertion holes 31 </ b> D are juxtaposed at predetermined intervals on two sides extending in the longitudinal direction of the water discharge member 31. A screw (not shown) inserted through the screw insertion hole 31 </ b> D is screwed into the support member 32, whereby the water discharging member 31 is fixed to the support member 32.

  As shown in FIG. 3, the support member 32 supports the water discharge member 31 from above. The support member 32 is formed in a longitudinal shape by bending a metal plate, for example, and is fixed in close contact with the ceiling panel 10A. The support member 32 is formed with, for example, a plurality of screw holes (not shown), and is fixed to the ceiling panel 10A by screws inserted into the screw holes. The support member 32 extends along the longitudinal direction at both edges in the short direction, and a rail portion (not shown) for guiding the cover member 33 when the cover member 33 described later is attached is formed.

  As shown in FIG. 2, the cover member 33 has a longitudinal box shape with the upper side opened. The cover member 33 accommodates and holds the water discharge member 31 therein. The cover member 33 is formed with a plurality of through holes 33A through which the water discharge protrusions 31A of the water discharge member 31 are inserted on the lower surface side. The cover member 33 has a guide piece (not shown) guided therein by a rail portion formed on the support member 32. When the cover member 33 is attached to the support member 32, the guide piece is guided to the rail portion, so that the cover member 33 is attached to the support member 32 while sliding. The cover member 33 is formed with a pair of through-holes 33B and 33B that allow a lens unit 60 (described later) to penetrate therethrough and project downward. The cover member 33 has an intake hole 33 </ b> C communicating with the intake hole 31 </ b> C of the water discharge member 31.

  The water discharge member 31 has a water supply space and a water flow space (not shown) formed therein. The water supply space functions as a water supply path through which hot water supplied from the hot water supply pipe of the apparatus main body 21 passes inside the water discharge member 31. The water supply space supplies hot water to the water flow space. In the hot water supplied from the water supply space to the water flow space, the outside air taken in from the intake hole 31C is mixed as bubbles, and the hot water containing the bubbles is sent to the water flow space. Hot water supplied to the water flow space is discharged to the outside from the water outlet 31B.

  The illuminating device 40 is assembled | attached to the overhead shower part 30, as shown in FIGS. A pair of lighting windows 62 and 62 described later included in the lighting device 40 are exposed from the lower surface of the overhead shower unit 30. The lighting device 40 includes a pair of lighting units 50 and 50. The pair of lighting units 50, 50 are arranged at a predetermined interval so as to sandwich the central portion (portion where the intake hole 33 </ b> C is formed) in the longitudinal direction on the lower surface of the overhead shower portion 30. The pair of lighting units 50, 50 are arranged at the center position in the short direction of the overhead shower unit 30. The pair of lighting units 50 and 50 are arranged so as to be surrounded by the plurality of water discharge ports 31B, respectively. With such a configuration, the illumination device 40 can be provided inside the overhead shower unit 30 so that the illumination units 50 and 50 do not interfere with the water discharge protrusion 31A.

  The illumination unit 50 includes a pair of light sources 51 and 52 and a lens unit 60 as shown in FIGS. The pair of light sources 51 and 52 irradiate illumination light having different color temperatures. The light source 51 is configured as an LED that emits daylight color illumination light. The light source 52 is configured as an LED that emits light bulb-colored illumination light. As shown in FIG. 3, the light sources 51 and 52 are connected to a wiring 53 connected to a power supply unit (not shown). The light sources 51 and 52 irradiate illumination light based on the power supplied from the wiring 53.

  The lens unit 60 functions to collect the illumination light emitted from the light sources 51 and 52 and irradiate the bathroom space S from an illumination window 62 described later. As shown in FIGS. 4 to 6, the lens unit 60 includes a pair of lenses 61 and 61, an illumination window 62, and a support portion 63. The pair of lenses 61, 61, the illumination window 62, and the support portion 63 are integrally formed.

  The lens 61 functions as a condenser lens. As shown in FIGS. 4 to 6, the lens 61 has a bell-shaped outer shape, and the outer circumference length increases toward the lower side. The lens 61 has a recess 61B that is recessed downward at the upper end. The recess 61B is recessed in a circular shape. The illumination window 62 functions to irradiate the illumination light from the light sources 51 and 52 to the outside. The illumination window 62 has a plate shape having an oval plate surface. The illumination window 62 is formed integrally with the lenses 61 and 61 so as to be continuous with the bottom (lower end) of the pair of lenses 61 and 61.

  The support 63 is connected to the edge of the illumination window 62 and surrounds the side surfaces of the pair of lenses 61 and 61. The support part 63 includes a side wall part 63A and an upper wall part 63B. The side wall 63 </ b> A is connected to the edge of the illumination window 62 and extends upward so as to be orthogonal to the plate surface of the illumination window 62. The upper wall portion 63B is connected to the upper end portion of the side wall portion 63A and extends in the horizontal direction so as to be orthogonal to the wall surface of the side wall portion 63A. The upper wall 63B has screw holes 63C formed at four corners of the upper wall 63B. The lens unit 60 is fixed to the water discharging member 31 by screws (not shown) inserted through the screw holes 63C.

  As shown in FIGS. 4 to 6, the pair of lenses 61 and 61 are assembled with light sources 51 and 52, respectively. The light source 51 is fitted into the recess 61 </ b> B of the one lens 61. The light source 52 is fitted into the recess 61B of the other lens 61. One lens 61 condenses the illumination light (daylight illumination light) emitted from the light source 51 and irradiates the illumination window 62 to the outside. The other lens 61 collects the illumination light (light bulb color illumination light) emitted from the light source 52 and irradiates the illumination light from the illumination window 62 to the outside. The lens unit 60 to which the light sources 51 and 52 are assembled is assembled to the water discharging member 31 as shown in FIG. As shown in FIG. 2, the illumination window 62 protrudes downward from the lower surface of the cover member 33 through the through hole 33B.

  Each lighting unit 50 is assembled to the overhead shower unit 30 so that the light sources 51 and 52 are arranged along the longitudinal direction of the overhead shower unit 30. The four light sources 51, 52, 51, 52 constituting the pair of lighting units 50, 50 are arranged in a row so that the colors of the illumination light are different in the order of daylight color, light bulb color, light bulb color, and daylight color. . That is, the light source 51, the light source 52, the light source 52, and the light source 51 are arranged in this order along the longitudinal direction of the overhead shower unit 30. The illumination unit 50 controls the turning on and off of the light sources 51 and 52, the control of the color adjustment of the illumination light from the light sources 51 and 52, and the illumination light from the light sources 51 and 52, for example, by operating an operation unit such as a remote controller (not shown). The light control (light intensity) is controlled. The illumination unit 50 can irradiate illumination light having an arbitrary color temperature between the daylight color and the light bulb color by controlling the color adjustment of illumination light from the light sources 51 and 52.

  The pair of lenses 61 and 61 provided in the illumination unit 50 collect and integrate the illumination light emitted from the light sources 51 and 52. Therefore, unlike a configuration in which each illumination light from the light sources 51 and 52 is collected by one lens (a configuration in which a plurality of light sources are assembled in one lens), the light is emitted from each light source while avoiding interference of each light source. The lens does not increase in size in order to properly collect the illumination light. Thereby, the enlargement of the illumination unit 50 can be suppressed and the illumination device 40 can be reduced in size.

  Next, an effect of illuminating hot water discharged from the overhead shower unit 30 with illumination light from the illumination device 40 in the bathroom 10 will be described. FIG. 7 is an explanatory diagram schematically illustrating the irradiation range of the lighting device 40 on the upper surface of the wash floor 10B (the floor surface of the bathroom 10). FIG. 8 is an explanatory diagram schematically illustrating the irradiation range of the lighting device 40 and the water discharge range of the overhead shower unit 30 on the upper surface of the wash floor 10B. FIG. 9 is an explanatory diagram for schematically explaining the relationship between the illuminance distribution of the illumination light emitted from the illumination device 40 on the upper surface of the washing floor 10B and the water discharge range of the overhead shower unit 30. 7 and 8, the bathroom 10 is shown with the bench counter 12 omitted. In the following description, the bench counter 12 is omitted. However, the same effect can be achieved even when the bench counter 12 is not omitted.

  The illumination lights emitted from the pair of illumination units 50 and 50 are applied to the washing floor 10B as a single unit overlapping each other. The illumination light irradiated from the illuminating device 40 has spread toward the washing place floor 10B, as shown in FIG. The illumination light emitted from the illumination device 40 has a circular shape on the upper surface of the washing floor 10B as shown in FIG. As shown in FIG. 9, the illumination light emitted from the illumination device 40 is in a narrow-angle light distribution state, and the irradiation range is narrower than that of a configuration that does not include the lens unit 60.

  The illumination light emitted from the illumination device 40 has a normal distribution of illuminance on the upper surface of the wash floor 10B as shown in FIG. The illumination light from the illumination device 40 has a maximum illuminance (100%) at a predetermined center position C. The illumination light from the lighting device 40 has a lower illuminance on the upper surface of the wash floor 10B as it goes from the center position C to the outside. The irradiation range AR2 illustrated in FIGS. 7 to 9 is an irradiation range in which the illuminance with respect to the maximum illuminance (illuminance at the center position C) of the illumination light from the illumination device 40 is greater than 50% on the upper surface of the wash floor 10B. The irradiation range AR2 is a region illuminated by a part of the illumination light L1 shown in FIG. 9, and is a circular irradiation range centered on the center position C. In the irradiation range AR3 shown in FIGS. 7 to 9, the illuminance with respect to the maximum illuminance (illuminance at the center position C) of the illumination light from the illumination device 40 is 50% or less and greater than 5% on the upper surface of the washing floor 10B. It is an irradiation range. The irradiation range AR3 is a region illuminated by a part of the illumination light L2 shown in FIG. 9, and is a ring-shaped irradiation range surrounding the irradiation range AR2 with the center position C as the center. The irradiation range AR4 illustrated in FIGS. 7 to 9 is an irradiation range in which the illuminance with respect to the maximum illuminance (illuminance at the center position C) of the illumination light from the illumination device 40 is 5% or less on the upper surface of the wash floor 10B. The irradiation range AR4 is a region illuminated by a part of the illumination light L3 shown in FIG. 9, and is a ring-shaped irradiation range surrounding the irradiation range AR3 with the center position C as the center.

  The irradiation range AR2 is an irradiation range where the illuminance is greater than 50%, and is an area (intra-irradiation area) where the brightness can be perceived visually. The irradiation range AR3 is an irradiation range in which the illuminance is 50% or less and greater than 5%, and the brightness can be perceived visually. The irradiation range AR4 is a region (outside irradiation region) where illuminance is as low as 5% or less and brightness cannot be perceived visually. The boundary between the irradiation range AR3 and the irradiation range AR4 is a boundary in which a difference in brightness can be visually recognized (a bright region and a dark region can be distinguished). The irradiation range AR2 is a region where the degree of brightness is clearly larger than that of the irradiation range AR3.

  Hot water is discharged from the water discharge port 31B of the water discharge member 31 by performing a water discharge operation on the operation unit 21A. Hot water discharged from the plurality of water discharge protrusions 31A of the overhead shower section 30 falls on the washing floor 10B so as to spread outward. Hot water discharged from the plurality of water discharge protrusions 31 </ b> A is evenly distributed inside a substantially circular water discharge range in a horizontal plane having a predetermined height. The hot water discharged from the plurality of water discharge protrusions 31A is evenly distributed inside the substantially circular water discharge range AR5 as shown in FIG. 8 on the upper surface of the wash floor 10B.

  As shown in FIG. 8, the center position C of the irradiation range AR2 is located inside the water discharge range AR5 of the overhead shower section 30 on the upper surface of the washing floor 10B. Specifically, the center position C of the irradiation range AR2 is the center position of the water discharge range AR5. Further, on the upper surface of the washing floor 10B, there are irradiation ranges (irradiation range AR3 and irradiation range AR4) in which the illuminance with respect to the maximum illuminance of the illumination light from the illumination device 40 (illuminance (100%) at the center position C) is 50% or less. The water discharge area AR5 is outside the hot water discharged from the overhead shower section 30. More specifically, as shown in FIGS. 8 and 9, the irradiation range AR <b> 2 having a particularly high degree of brightness due to irradiation of illumination light from the illumination device 40 on the upper surface of the wash floor 10 </ b> B is an area of the overhead shower unit 30. Mostly overlaps the water discharge range AR5.

  As shown in FIG. 3, the shape of the lens unit 60 of the illumination device 40 (specifically, the oval shape of the plate surface of the illumination window 62) is the area where the water discharge port 31B is disposed (the water discharge protrusion 31A is formed). The shape is similar to the oval formation region AR1). Therefore, the irradiation range AR <b> 2 of the lighting device 40 is easily overlapped with the water discharge range AR <b> 5 of the overhead shower unit 30.

  FIG. 10 is an explanatory diagram schematically illustrating how illumination light is irradiated from the lighting device 40 and hot water is discharged from the overhead shower unit 30 in the bathroom 10 of FIG. 1. The bathroom 10 is in the illumination state shown in FIG. 10 by discharging hot water from the overhead shower unit 30 in a state where illumination light is irradiated from the illumination device 40. As described above, on the upper surface of the wash floor 10B, as shown in FIG. 8 and FIG. 9, a region with a particularly high degree of brightness (irradiation range AR2) overlaps with the water discharge range AR5 of the overhead shower unit 30 in most part. ing. Thereby, a particularly bright portion of the illumination light emitted from the illumination device 40 (illumination light L1 shown in FIG. 9) overlaps with the hot water falling from the illumination windows 62, 62 to the upper surface of the wash floor 10B of the bathroom 10. That is, the illumination light L1 is irradiated toward the upper surface of the wash floor 10B so as to follow the spread of hot water from the illumination windows 62 and 62 to the upper surface of the wash floor 10B. Therefore, the illumination light from the illuminating device 40 is concentrated and efficiently irradiated on the hot water, and an effective presentation can be performed in the bathroom space S by the light (light L4 shown in FIG. 10) spreading through the hot water.

  The illumination light L1 from the illumination device 40 illuminates hot water accumulated on the upper surface of the washing floor 10B and the upper surface of the bench counter 12, as shown in FIG. Thereby, the illuminating device 40 can perform effects such as light pool lighting (see the light L5 shown in FIG. 10) on the upper surface of the washing floor 10B and the upper surface of the bench counter 12.

  The illumination light emitted from the illumination device 40 is combined with the illumination light emitted from the four light sources 51, 52, 51, 52, and has a predetermined color temperature. The four light sources 51, 52, 51, 52 included in the illumination device 40 are arranged in a row so that the color of the illumination light is different in the order of daylight color, light bulb color, light bulb color, and daylight color. Light bulb color illumination light is irradiated from the center side in the arrangement direction of the four light sources 51, 52, 51, 52 (center side in the longitudinal direction of the overhead shower unit 30). Therefore, the light bulb-colored illumination light, which is a relatively calm color, can be concentrated on the center side of the entire illumination light. On the other hand, since the daylight color illumination light is emitted from the outside in the arrangement direction of the four light sources 51, 52, 51, 52, the daylight color illumination light, which is a relatively bright color, is emitted over a wide range so as to spread outward. be able to. Accordingly, it is possible to create light in which the light of calm color is confined inside, and it is possible to create a comfortable lighting environment.

  For example, when the illumination device 40 irradiates daylight color illumination light from each illumination unit 50, the illumination device 40 irradiates the daylight color illumination light intensively to the hot water discharged from the water outlet 31 </ b> B of the overhead shower unit 30. Thereby, the daylight color illumination light which is a bright color spreads through hot water at a high position (over the head) in the bathroom 10 close to the ceiling panel 10A. Therefore, the illuminating device 40 can produce the awakening effect with respect to the person who takes a shower.

  For example, when the illumination device 40 irradiates light bulb-colored illumination light from each illumination unit 50, the illumination device 40 concentrates the light-color illumination light on hot water discharged from the water outlet 31 </ b> B of the overhead shower unit 30. Thereby, the light bulb-colored illumination light which is a calm color spreads through hot water at a high position (over the head) in the bathroom 10 close to the ceiling panel 10A. In addition, the lighting device 40 can perform effects such as lighting of a light bulb colored light pool (see the light L5 shown in FIG. 10) on the upper surface of the washing floor 10B and the upper surface of the bench counter 12. As described above, the lighting device 40 can create a fantastic and relaxing comfortable lighting environment in the bathroom 10.

  The illumination windows 62 and 62 are arrange | positioned so that it may be enclosed by the some water outlet 31B. When hot water is being discharged from the water outlet 31B, the illumination windows 62 and 62 are covered with the hot water, so that the illumination windows 62 and 62 become inconspicuous. Therefore, when illuminating light is irradiated from the illuminating device 40 to produce an effect in the bathroom space S, it is possible to prevent a decrease in aesthetics due to the illumination windows 62 and 62 being visible.

  The pair of lighting units 50, 50 are assembled to the overhead shower unit 30 so as to be surrounded by the plurality of water discharge ports 31B. Thereby, the illumination unit 50 can be surely surrounded in a ring shape by the plurality of water discharge ports 31B, and the water discharge range AR5 of the overhead shower unit 30 can be easily set to be circular. Therefore, the overhead shower unit 30 can perform lighting effects using the hot water discharged while maintaining a good shower comfort.

Hereinafter, the effect of this configuration will be exemplified.
The illuminating device 40 according to the first embodiment has an irradiation range (irradiation range AR3 and irradiation range) in which the illuminance with respect to the maximum illuminance of the illumination light emitted from the light sources 51, 52, 51, 52 is 50% or less on the upper surface of the wash floor 10B. The illumination light is irradiated so that AR4) is outside the water discharge range AR5 of hot water discharged from the overhead shower section 30. Thereby, most of the illumination light irradiated from the light sources 51, 52, 51, 52 can be made to fall within the water discharge range from the illumination windows 62, 62 to the upper surface of the wash floor 10B. Therefore, the illumination light from the light sources 51, 52, 51, 52 is irradiated toward the wash floor 10B along the spread of hot water from the illumination windows 62, 62 to the upper surface of the wash floor 10B. Therefore, the illumination light from the light sources 51, 52, 51, 52 is concentrated and irradiated on the hot water, and an effective presentation can be performed in the bathroom space S by the light spreading through the hot water.

  The illuminating device 40 is arrange | positioned so that the illumination windows 62 and 62 may be surrounded by the some water outlet 31B. Thereby, since the illumination windows 62 and 62 will be covered with hot water when the hot water is discharged from the water outlet 31B, the illumination device 40 can make the illumination windows 62 and 62 inconspicuous. Therefore, when illuminating the illumination light from the light sources 51, 52, 51, 52 and performing in the bathroom space S, it is possible to prevent a decrease in aesthetics due to the illumination windows 62, 62 being visible.

The present invention is not limited to the first embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In Example 1, the illumination light irradiated from the illuminating device 40 was circular on the upper surface of the washroom floor 10B, but may have a shape other than a circular shape.
(2) In the first embodiment, hot water discharged from the plurality of water discharge protrusions 31A of the overhead shower unit 30 is dispersed inside the circular water discharge range on the upper surface of the wash floor 10B. It may be dispersed inside.
(3) In the first embodiment, the pair of illumination units 50 and 50 each having the oval illumination window 62 are disposed so as to be surrounded by the plurality of water discharge ports 31B. However, the configuration of the lighting unit 50 and the arrangement relationship between the lighting unit 50 and the water outlet 31B may be other configurations. For example, the illumination unit 50 (specifically, the illumination window 62) has a ring shape, and a plurality of water discharge ports 31B may be disposed on the inside (periphery) and outside of the illumination window 62.
(4) In Embodiment 1, the overhead shower portion 30 has a substantially rectangular parallelepiped shape elongated in the horizontal direction, but may have other shapes. For example, the overhead shower unit 30 may be circular when viewed from below. In the first embodiment, the illumination unit 50 (specifically, the illumination window 62) has an oval shape as viewed from below, but may have other shapes. For example, the illumination unit 50 (specifically, the illumination window 62) may be circular when viewed from below.
(5) In Example 1, although the illuminance of the illumination light irradiated from the illuminating device 40 showed the example (FIG. 9) which becomes a normal distribution in the upper surface of the washroom floor 10B, the illuminance may not be a normal distribution. . For example, the illuminating device 40 may be configured such that the illumination light emitted from the pair of illumination units 50 and 50 is combined to generate an illuminance distribution with two peaks.
(6) In the first embodiment, the number of the illumination units 50 included in the illumination device 40 is two, but may be other than two. Moreover, although the number of the lenses 61 with which the illumination unit 50 is provided is two, other than two may be sufficient. Moreover, although the number of the light sources 51 and 52 with which the illumination unit 50 is provided is two, other than two may be sufficient.
(7) In the first embodiment, the illumination light emitted from each of the four light sources 51, 52, 51, 52 included in the illumination device 40 is daylight color, light bulb color, light bulb color, and daylight color. May be other combinations. For example, the illumination light emitted from each of the four light sources 51, 52, 51, 52 may be all daylight or all light bulbs. Further, when the illumination unit 50 is configured to include three light sources, the three light sources may irradiate red, blue, and green illumination light, respectively.
(8) In Embodiment 1, the lens 61 is integrated with the illumination window 62, but the lens 61 may be detachable from the illumination window 62.
(9) In the first embodiment, the light pool lighting (see the light L5 shown in FIG. 10) is generated on the upper surface of the wash floor 10B and the upper surface of the bench counter 12, but is generated only on the upper surface of the wash floor 10B. It may be a configuration.

10 ... Bathroom 10B ... Laundry floor 30 ... Overhead shower (spout)
31B ... Water outlet 40 ... Lighting device 51,52 ... Light source 62 ... Lighting window

Claims (2)

A lighting device that is assembled to a water discharge portion that is formed on a predetermined position in a bathroom and has a plurality of water discharge ports formed on the outer surface,
An illumination window disposed on an outer surface where the water discharge port is formed in the water discharge unit;
A light source that emits illumination light toward the floor of the bathroom through the illumination window;
Have
On the floor surface of the bathroom, the illumination range in which the illuminance with respect to the maximum illuminance of the illumination light emitted from the light source is 50% or less is outside the range of hot water discharged from the water discharge unit. apparatus.   The lighting device according to claim 1, wherein the lighting window is disposed so as to be surrounded by the plurality of water outlets.

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