JP2015148106A - Checking opening lid having function as illumination device in bath room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a checking opening lid having a function as an illumination device in a bath room capable of uniformly lighting inside of a bath room entirely, exhibiting a simple and excellent appearance on ceiling surface of bath room, and being used as an illumination for checking sites upon checking of backside of the ceiling.SOLUTION: A lid main body 3a of a checking opening lid 3 sealing a checking opening 4 arranged on a center part of ceiling is formed on a frame fastened on the checking opening 4. Into the lid main body 3a consisting of the frame, a flat illumination device 10 consisting of a plurality of light-emitting diodes 11 and a light diffusion plate 12 irradiating illumination light emitted from the light-emitting diodes 11 is assembled in an integral manner. A ceiling surface is simplified, since no illumination device irrespective to the checking opening lid 3 is arranged on the ceiling surface. Illumination light is uniformly emitted from the flat illumination device 10 arranged on the center part of the ceiling to inside of the bath room entirely.

Description

  The present invention relates to an illuminating device / inspection lid in which a lighting device for illuminating the interior of a bathroom is combined with an inspection port lid that closes an inspection port provided in a ceiling.

  Conventionally, as a lighting device in a bathroom, for example, as described in Patent Document 1, a lighting device in which a light source including an incandescent lamp covered with a globe is provided on a wall surface of a bathroom, or Patent Document 2 As described in, there is widely known an illuminating device in which a light source composed of an incandescent lamp or a fluorescent lamp covered with a translucent cover or the like is disposed on the ceiling of a bathroom.

  On the other hand, Patent Document 3 discloses an illuminating device in which a planar light emitter is formed by arranging a large number of light sources composed of light emitting diodes on the lower surface of a ceiling in a bathroom instead of an incandescent lamp or a fluorescent lamp. Yes.

JP-A-9-97509 JP-A-2-215429 JP 2001-40891 A

  However, in order to install an illuminating device using an incandescent lamp or fluorescent light as a light source on the ceiling or wall of a bathroom, it is necessary to perform hole processing or waterproofing to attach the illuminating device to the ceiling or wall. Since incandescent lamps and fluorescent lamps use a large current, it is necessary to take insulation measures, which complicates the installation work and increases the power consumption. Furthermore, in the case of an illuminating device using a fluorescent lamp, the life span is short and it is necessary to replace the fluorescent lamp every short period. In the case of an illuminating device using an incandescent lamp, a glove that covers the incandescent lamp has a ceiling surface. Moreover, since it protrudes toward the inside of a bathroom from a wall surface, there exists a possibility of giving the uncomfortable feeling that the indoor space was narrowed.

  In addition, since an inspection port is provided in the center of the ceiling and a ventilation fan is disposed in the vicinity of the inspection port, when the lighting device is mounted on the ceiling, the mounting position of the lighting device is It is limited to the outer periphery of the ceiling, and therefore it is not possible to keep the illuminance in the bathroom uniform with a single lighting device. Therefore, it is necessary to install two or more lighting devices, and these together with the inspection port and ventilation fan However, there is a problem that the appearance of the ceiling is cluttered by the installation of the lighting device and the aesthetic appearance is impaired.

  In addition, when performing maintenance inspections such as wiring behind the ceiling and ventilation equipment from the inspection port, opening and closing of the inspection port lid where the above-mentioned lighting device that uses an incandescent lamp protruding downward from the ceiling surface as a light source It becomes an obstacle to the operation, and such a device can be mounted on the back side of the ceiling, but it is difficult to secure a sufficient work space and facility installation space on the back side of the ceiling.

  On the other hand, according to the illuminating device comprising a planar light emitter that uses a large number of light-emitting diodes disposed on the lower surface of the ceiling as a light source, the power consumption and the lifetime are long compared to the illuminating device using an incandescent lamp. In order to perform surface light emission, it is necessary to increase the number of light emitting diodes, and to suppress so-called glare such as uneven brightness and glare, the light emitting diodes need to be relatively far away from the shaded portion. For this reason, there is a problem that power consumption is increased, and the thickness of the lighting device is increased, which makes it impossible to secure a sufficient working space by pressing the space behind the ceiling.

  Furthermore, the lighting device using the light-emitting diode as a light source is fixed so that it cannot be easily removed from the ceiling in the same manner as the lighting device using the incandescent lamp as a light source. Such a lighting device cannot be used when performing maintenance and inspection of ventilation equipment and the like, and there is a problem that work efficiency is lowered because the work is performed while illuminating the back of the ceiling with a flashlight.

  The present invention has been made in view of such problems, and the object of the present invention is to provide a planar illumination device having a light emitting diode as a light source at the position of an inspection port provided in the center of the ceiling. Enables uniform lighting throughout the bathroom, simplifies the ceiling surface and provides an excellent design, and makes the bathroom feel spacious and allows for comfortable bathing. It can also be installed easily so that sufficient space is secured in the back of the ceiling, and it is used for lighting of the back of the ceiling when performing maintenance inspections such as wiring and ventilation equipment on the back of the ceiling An object of the present invention is to provide an illuminating device / inspection palate in a bathroom that can be operated smoothly.

  In order to achieve the above object, the lighting device and inspection mouth cover in the bathroom according to the present invention is detachably fitted into the inspection mouth with the lid body of the inspection mouth cover provided on the ceiling of the bathroom as described in claim 1. A surface comprising a light source made of a light emitting diode and a light diffusion plate for irradiating illumination light emitted from the light source toward the bathroom in a space surrounded by the frame. The structure is provided with a lighting device.

  In the lighting device / inspection mouth lid in the bathroom configured as described above, the invention according to claim 2 is a flange portion that is hung on the outer peripheral surface of the upper end portion of the frame forming the lid body on the ceiling upper surface of the periphery of the inspection port. It is characterized by protruding.

  Furthermore, in the invention according to claim 3, the lower surface of the planar lighting device disposed in the lid body is flush with the lower surface of the ceiling at the lower end opening of the frame forming the lid body. A light diffusing plate attached to the frame, a light-emitting diode that is mounted on the inner peripheral surface of the frame at small intervals in the circumferential direction and emits light toward the frame, and attached to the upper end opening of the frame And a light guide plate disposed in a frame body space surrounded by the light reflection plate and the inner peripheral surface of the frame on which the light diffusion plate and the light emitting diode are mounted. It is characterized by comprising.

  On the other hand, the invention according to claim 4 is directed to the planar lighting device disposed in the lid body, wherein the lower surface of the lower end opening of the frame forming the lid body is flush with the lower surface of the ceiling. A light diffusing plate attached so as to become a large number of light reflecting surfaces disposed in the upper part of the lid main body and inclined on the inner peripheral surface in a direction of expanding from the upper end toward the lower end. A light reflecting plate having concave portions provided in the front, rear, left and right at every small interval, and a light emitting diode disposed on the bottom bottom inner surface of each concave portion of the light reflecting plate and having the light emitting direction directed to the light diffusing plate. It is characterized by that.

  According to the first aspect of the present invention, the lid body of the inspection port lid provided on the ceiling of the bathroom is formed in the frame body that is detachably fitted into the inspection port, and the space portion surrounded by the frame body In addition, a surface illumination device comprising a light source composed of a light emitting diode and a light diffusing plate for irradiating illumination light emitted from the light source toward the interior of the bathroom is provided. It is possible to provide a surface lighting device that illuminates the bathroom on the ceiling simply by attaching the inspection lid to the inspection port without installing the surface lighting device on the ceiling or wall of the bathroom. It is possible to provide a good-looking ceiling structure with an excellent appearance and a structure in which the planar lighting device is arranged in the center of the ceiling, and the entire bathroom is substantially uniform with this single lighting device. Can be illuminated.

  Furthermore, since the lighting device is arranged so as to be built in the lid body of the inspection mouth cover as described above, not only can the ceiling be high and the interior of the bathroom becomes wide, but also the back of the ceiling. In addition, there is no risk that the surface lighting device will interfere with work during maintenance inspections such as wiring behind the ceiling and ventilation equipment, and it was removed from the inspection port. By installing the inspection palate on the ceiling behind the area where the light exit surface of the surface illumination device should be inspected, the inspection area is illuminated with illumination light from the surface illumination device without using a flashlight. However, maintenance and inspection work such as wiring and ventilation equipment can be performed smoothly.

  According to the second aspect of the present invention, since the flange portion that is hooked on the ceiling upper surface of the peripheral edge of the inspection port is provided on the outer peripheral surface of the upper end portion of the frame forming the lid body, the ceiling By inserting the lid body of the inspection port lid with a surface illumination device into the inspection port provided on the top from the top, the flange hooks on the ceiling top of the periphery of the inspection port, making the inspection port lid easy and stable to the inspection port When performing maintenance and inspection of wiring in the ceiling, etc., the inspection port can be easily opened by pushing the inspection port lid upward from the inside of the bathroom. Can do.

  According to the third aspect of the present invention, the planar lighting device disposed in the lid main body has a lower surface flush with a lower surface of the ceiling at the lower end opening of the frame forming the lid main body. A light diffusing plate attached to the frame, a light-emitting diode that is mounted on the inner peripheral surface of the frame at small intervals in the circumferential direction and emits light toward the frame, and attached to the upper end opening of the frame And a light guide plate disposed in a frame body space surrounded by the light reflection plate and the inner peripheral surface of the frame on which the light diffusion plate and the light emitting diode are mounted. Therefore, the thickness of the lighting device can be reduced, and it can be easily incorporated into the frame forming the lid body of the inspection mouth lid. Therefore, this inspection mouth lid is arranged in the inspection mouth. Even if you can secure enough space behind the ceiling, On the side, the bottom surface of the light diffusing plate, which is a shade surface attached to the lower end opening of the lid body, is continuous to the ceiling lower surface through the lower end surface of the lid body, so Therefore, it is possible to give a feeling that the interior of the bathroom is wide, and to easily clean the lower surface of the inspection palate provided with the surface illumination device together with the ceiling surface.

  Further, in the above planar illumination device, the light emitting diode is disposed only on the inner peripheral surface of the frame body that is the lid body facing the side surface of the light guide plate, and thus the surface on which the light emitting diode is disposed in a planar shape. In addition to being able to reduce power consumption compared to the light emitter, the illumination light incident on the light guide plate from the light emitting diodes provided on the inner peripheral surface of the frame body through the side end face of the light guide plate is guided. Diffusion while repeating multiple reflections between the upper and lower surfaces of the light guide plate while propagating in the light plate, and can be uniformly emitted from the light diffuser plate through the light diffuser plate into the bathroom. Therefore, the occurrence of glare such as uneven brightness and glare can be eliminated, and the lighting device can be made thinner.

  According to the fourth aspect of the present invention, in the planar lighting device disposed in the lid main body, the lower surface of the lower end opening of the frame body forming the lid main body is flush with the lower surface of the ceiling. A light diffuser plate attached to the upper part of the lid body and a number of recesses formed in the light reflecting surface inclined in the direction of expanding the inner peripheral surface from the upper end toward the lower end. It comprises a light reflecting plate provided at small intervals on the left and right sides, and a light emitting diode disposed on the bottom inner bottom surface of each concave portion of the light reflecting plate and having its light emitting direction directed to the light diffusing plate. Therefore, similarly to the planar illumination device according to claim 3, the thickness of the illumination device can be reduced and can be easily incorporated into the frame body which is the lid body. A sufficient space can be secured on the back of the ceiling. Since the lower surface of the light diffusing plate, which is a shade surface attached to the lower end opening of the lid body, is made to be flush with the ceiling lower surface via the lower end surface of the lid body, In addition to providing a sense of widening, it is possible to easily clean the lower surface of the inspection mouth cover provided with the surface illumination device together with the ceiling surface.

  Furthermore, according to this planar illumination device, the light emitted from the light emitting diodes arranged on the inner bottom surface of the bottom of each concave portion of the light reflecting plate is reflected by the inclined inner peripheral surface of each concave portion of the light reflecting plate. In addition to being able to disperse, the light diffusing plate passes through the light diffusing plate while repeating multiple reflections between the light reflecting plate and the light diffusing plate attached to the lower end opening of the lid body, and is uniformly emitted into the bathroom. Therefore, the occurrence of glare such as uneven brightness and glare can be eliminated, and the lighting device can be made thinner.

The simplified perspective view in the bathroom which provided this invention lighting device and inspection opening lid. The simplified bottom view of the ceiling part. The simplified vertical side view of the inspection opening and ventilation fan which were arranged on the ceiling. The longitudinal front view of the inspection mouth cover arrange | positioned at the inspection opening. The top view of an inspection palate. The longitudinal front view which shows another structure of an illuminating device.

  A specific embodiment of the present invention will be described with reference to the drawings. In FIG. 1 to FIG. 3, an inspection port in which a central portion of a ceiling board (hereinafter simply referred to as a ceiling 2) of a bathroom 1 is closed by an inspection port lid 3. 4 is provided.

  As shown in FIGS. 4 and 5, the inspection port lid 3 is formed of a frame made of an opaque material that fits the lid body 3 a into the inspection port 4 in a detachable manner. For example, as shown in these drawings, if the inspection port 4 is a flat rectangular shape, the outer peripheral surface of the frame body forming the lid body 3 a is fitted along the inner peripheral surface of the inspection port 4. When the inspection port 4 has a flat circular shape, the frame is formed in an annular frame and is surrounded by an inner peripheral surface of the frame. By providing the planar illumination device 10 in the part 5, the inspection port lid 3 that closes the inspection port 4 is configured as a lid structure that also serves as an illumination device.

  The frame forming the lid body 3a of the inspection port lid 3 (hereinafter referred to as a rectangular frame) is a planar rectangular peripheral frame portion 3a1 that fits into the inspection port 4, and this An inner flange portion 3a2 having a certain projecting width protruding from the inner peripheral surface of the lower end portion of the peripheral frame portion 3a1 toward the center, and a horizontal projection from the outer peripheral surface of the upper end portion of the peripheral frame portion 3a1 toward the outer side. An outer flange portion 3a3 having a certain protruding width, and the peripheral frame portion 3a1 of the lid body 3a is fitted into the inspection port 4 from above the inspection port 4 so that the outer flange portion 3a3 is connected to the inspection port 4 In the closed state where it is hooked on the upper surface of the ceiling of the peripheral edge of the outer periphery, the lower end surface of the peripheral frame portion 3a1 is continuously flush with the lower end surface of the inner flange portion 3a2 so as to be flush with the lower surface of the ceiling. Yes. The outer flange portion 3a3 is covered with a waterproof seal 6 that is in close contact with the top surface of the ceiling around the upper end opening edge of the inspection port 4.

  The specific structure of the planar illumination device 10 disposed on the lid body 3a will be described. The planar illumination device 10 is formed on the inner flange portion 3a2 in the frame body forming the lid body 3a. A plurality of light emitting diodes 11 arranged and fixed at regular intervals in the circumferential direction on the four inner peripheral surfaces of the peripheral frame portion 3a1, and an inner flange forming a lower end opening of the frame body A light diffusing plate made of translucent acrylic resin that is disposed in a space surrounded by the inner peripheral end surface of the portion 3a2 and has its four outer peripheral end surfaces closely fixed to the four inner peripheral end surfaces of the inner flange portion 3a2. 12 and the upper end opening portion of the peripheral frame portion 3a1 of the frame body are hermetically sealed, and the four circumferential end surfaces thereof are in contact with the inner peripheral surface of the upper end opening portion of the peripheral frame portion 3a1 on which the light emitting diode 11 is mounted. The light reflecting plate 13 attached in the state, the light reflecting plate 13, the light diffusing plate 12 and the upper A light guide plate 14 made of a transparent synthetic resin plate disposed in a space portion having a horizontally long rectangular cross section surrounded by the inner peripheral surface of the peripheral frame portion 3a1 in the frame body on which the light emitting diode 11 is mounted; It is composed of

  The light emitting diodes 11 are arranged and fixed on the four inner peripheral surfaces of the peripheral frame portion 3a1 at regular intervals in the circumferential direction, but on one surface of the four inner peripheral surfaces of the peripheral frame portion 3a1. Alternatively, it may be arranged in the circumferential direction so as to face only one side end face of the light guide plate 14.

  The light guide plate 14 is formed in a planar rectangular shape having a certain thickness that can be disposed in the peripheral frame portion 3a1, and is disposed on the four inner peripheral surfaces of the peripheral frame portion 3a1 so as to face the four side end surfaces. Light emitted from the plurality of light emitting diodes 11 is configured to enter the light guide plate 14 from the side end face of the light guide plate 14 facing the light emitting diodes 11. The light reflecting plate 13 disposed in the upper end opening of the peripheral frame portion 3a1 of the frame body has a cover plate member 16 in which the lower surface outer peripheral portion is fixed to the upper end surface of the peripheral frame portion 3a1 via a waterproof seal 15. It is covered by.

  The lighting device / inspection mouth cover thus configured is a peripheral frame part 3a1 of the frame body in which the cover body 3a is formed from the upper side of the ceiling 2 in the inspection opening 4 provided in the center part of the ceiling 2 of the bathroom 1. So that the inspection port 4 is closed by hooking the outer flange portion 3a3 projecting from the upper end of the outer peripheral surface of the peripheral frame portion 3a1 to the upper surface of the ceiling of the periphery of the inspection port 4 In this attached state, the light diffusing plate 12 provided in the lower end opening of the frame body is such that the lower surface, which is the light emitting surface thereof, faces the lower surface of the ceiling together with the lower end surface of the peripheral frame portion 3a1 of the frame body. It is flush with the horizontal direction.

  As shown in FIG. 1, the bathroom 1 is a bathroom unit comprising a floor 7 provided with a bathtub and a washing place, a wall 8 provided with a hot water tap, a shower unit, a makeup mirror, and the ceiling 2 and the like. The interior of the bathroom is illuminated by a planar illumination device 10 that is formed and integrated with the inspection lid 3 provided on the ceiling. Further, a ventilation fan 9 is provided on the ceiling 2 so as to be adjacent to the planar lighting device 10.

  In order to illuminate the interior of the bathroom with the planar lighting device 10, the light-emitting diode 11 serving as a light source arranged in parallel at small intervals in the circumferential direction on the inner peripheral surface of the frame body forming the lid body 3a is energized. When the light emitted from these light emitting diodes 11 enters the light guide plate 14 from the side end face of the light guide plate 14, the incident illumination light is transmitted through the light guide plate 14 while the upper and lower surfaces of the light guide plate 14 are The center part of the ceiling 2 is emitted into the bathroom 1 from the lower surface of the light diffusing plate 12 which diffuses while repeating multiple reflections between them and transmits the light diffusing plate 12 from the light guide plate 14 to form a light emitting surface. The entire bathroom can be illuminated uniformly.

  In addition, in order to inspect ventilation equipment and the like with the wiring on the back of the ceiling and the ventilation fan 9, when the inspection opening lid 3 provided with the surface lighting device 10 is pushed up from the bathroom to the ceiling back side, the peripheral frame portion of the lid main body 3a The outer flange portion 3a3 projecting outward from the upper end is detached from the top surface of the ceiling of the inspection port 4 and the inspection port 4 is opened. In this state, the worker inspects the back of the ceiling through the inspection port 4. At this time, by installing the inspection lid 3 so that the inspection lid 3 pushed up to the back side of the ceiling is directed to the upper surface of the ceiling behind the ceiling and the light emitting surface of the surface lighting device 10 is to be inspected, a flashlight, etc. Maintenance and inspection work such as wiring and ventilation equipment can be performed while illuminating the inspection location with illumination light from the surface illumination device without using it.

  The planar illumination device 10 provided integrally with the inspection port lid 3 is an illumination device including a light guide plate 14, but a planar illumination device having a structure not including the light guide plate 14 is provided in the inspection aperture lid 3. Can also satisfy the present invention.

  FIG. 6 shows an embodiment of the lighting device / inspection lid, and the structure of the inspection mouth lid 3 is the same as the above embodiment, and when the inspection port 4 is formed in a rectangular shape, the lid body 3a is It is formed of a frame made of an opaque material that is removably fitted into the inspection port 4, and has a planar rectangular peripheral frame portion 3 a 1 that fits into the inspection port 4, and an inner periphery at the lower end of the peripheral frame portion 3 a 1 An inner flange portion 3a2 having a certain projecting width projecting horizontally inward on the surface, and a certain projecting horizontally projecting outward from the outer peripheral surface of the upper end portion of the peripheral frame portion 3a1 And an outer flange portion 3a3 having a protruding width of. Further, the outer flange portion 3a3 is covered with a waterproof seal 6 that is in close contact with the top surface of the ceiling around the upper opening edge of the inspection port 4.

  On the other hand, when describing a specific structure of the planar lighting device 10 ′ disposed in the lid body 3a, the planar lighting device 10 ′ is formed by the inner flange portion 3a2 forming the lower end opening of the frame. A light diffusing plate 12 ′ made of a translucent acrylic resin that is disposed in a space surrounded by the inner peripheral end surface of the inner flange portion 3a2 and has its four outer peripheral end surfaces closely fixed to the inner peripheral end surface of the inner flange portion 3a2. A cover plate 15 ′ disposed so as to seal the upper end opening of the peripheral frame portion 3a1 of the frame body and fixing its four circumferential end surfaces to the upper end surface of the peripheral frame portion 3a1, and the lid body 3a A plurality of recesses 13b formed in the light reflecting surface 13a, which is disposed in the upper part of the light source and is inclined in a direction in which the inner peripheral surface expands from the upper end toward the lower end, and is provided at small intervals on the front, rear, left and right sides. Reflecting plate 13 ′ and the inner bottom surface of each recess 13b of light reflecting plate 13 ′ are arranged on the inner bottom surface of the bottom, and the light emitting direction is changed to the light diffusing plate 12 ′. And a light emitting diode 11 'directed thereto.

  The specific structure of the light reflecting plate 13 ′ will be described. The concave portion 13b has an upper end surface 13b1 formed on a small square wall surface, and the same angle downward from the four side edges of the upper end wall surface 13b1. Thus, by providing a rectangular wall surface 13b2 having a constant length inclined outward, it is formed into a truncated quadrangular pyramid shape, and the inner surface of the rectangular wall surface 13b2 of the recess 13b is formed on the light reflecting surface 13a. At the same time, the lower ends of the four-side circumferential wall surfaces 13b2 of the recesses 13b, 13b adjacent to the front, rear, left and right are integrally connected by a horizontal belt-like lower wall surface 13b3.

  In order to attach the thus configured lighting device / inspection port lid to the inspection port 4 provided in the center of the ceiling 2, the lid body 3a is inserted into the inspection port 4 from above as in the above embodiment. The outer flange portion 3a3 protruding from the upper end of the outer peripheral surface of the frame portion 3a1 is hooked on the ceiling upper surface of the periphery of the inspection port 4.

  In addition, in order to illuminate the bathroom with the planar lighting device 10 ′ incorporated in the lid body 3a, the light emitting diode 11 ′ serving as a light source disposed on the bottom inner bottom surface of the recess 13b of the light reflecting plate 13 ′ is used. When energized to emit illumination light from these light emitting diodes 11 ', the emitted light is reflected and dispersed by the light reflecting surface 13a on the inner surface of the recess, and partly enters the light diffusion plate 12' while being dispersed. The other light is reflected by the light diffusing plate 12 'toward the light reflecting plate 13' and is reflected from the light reflecting surface 13a on the inner surface of the concave portion and the horizontal strip-like lower end wall surface 13b3. The light is reflected again by the lower surface toward the light diffusing plate 12 ′, and passes through the light diffusing plate 12 ′ while repeating multiple reflections between the light reflecting plate 13 ′ and the light diffusing plate 12 ′ so that the entire interior of the bathroom is uniform Can be illuminated.

  A mode in which the inspection opening cover 3 provided with the surface lighting device 10 ′ is removed from the inspection port 4 and the wiring on the back of the ceiling, the ventilation fan 9 and the like are inspected while illuminating the portion to be inspected by the surface lighting device 10 ′. Since is the same as the above embodiment, detailed description thereof is omitted.

1 Bathroom 2 Ceiling 3 Inspection palate
3a Cover body 4 Inspection port
10 Surface lighting device
11 Light-emitting diode
12 Light diffuser
13 Light reflector
14 Light guide plate

Claims (4)

  The lid body of the inspection port lid provided on the ceiling of the bathroom is formed in a frame body that is removably fitted into the inspection port, and a light source composed of a light emitting diode and the light source are formed in a space surrounded by the frame body An illumination device and inspection mouth cover in a bathroom, comprising: a planar illumination device including a light diffusing plate that irradiates illumination light emitted from the light toward the bathroom.   2. A lighting device in a bathroom according to claim 1, wherein a flange portion is provided on the outer peripheral surface of the upper end portion of the frame forming the lid main body so as to be hooked on the upper surface of the ceiling at the periphery of the inspection port. Cum inspection palate.   The lighting device disposed in the lid body includes a light diffusing plate attached to a lower end opening of a frame body forming the lid body so that a lower surface is flush with a lower surface of the ceiling, and a frame A light-emitting diode that is mounted on the inner peripheral surface of the body at small intervals in the circumferential direction and emits light toward the inside of the frame; a reflector that is attached to an upper end opening of the frame; the reflector and the light A planar illumination device comprising a light guide plate disposed in a frame space surrounded by a diffuser plate and an inner peripheral surface of the frame on which the light emitting diode is mounted. The lighting device and inspection palate in the bathroom according to claim 1.   The lighting device disposed in the lid body includes a light diffusing plate attached to a lower end opening of the frame body forming the lid body so that the lower surface is flush with the ceiling lower surface, Light which is provided in the upper part of the lid body and has a large number of recesses formed in the front, back, left and right at small intervals formed on the light reflecting surface whose inner peripheral surface is inclined in the direction of expanding from the upper end toward the lower end. A planar illumination device comprising a reflector and a light emitting diode disposed on the bottom inner bottom surface of each recess of the light reflector and having a light emitting direction directed to the light diffusion plate. The lighting device and inspection palate in the bathroom according to claim 1.

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