JPH08111115A - Luminaire and mirror cabinet provided therewith - Google Patents

Abstract

PURPOSE: To carry out both direct illumination and indirect illumination with sufficient illuminance by a single light source by making a part or all of the upper face and the lower face of a casing in which the light source is stored be composed of light transmissive members and making the surface area of the lower face smaller than the surface area of the upper face among the members. CONSTITUTION: A long light source, e.g. a straight tubular fluorescent lamp, etc., is installed in a casing 10 having a nearly trigonal prism shape and composed of an upper plate 11, a pair of right and left side plates, a back plate 13, and a lower plate 14. Parts of the plate 11 and the plate 14 are composed as light transmissive parts 11a, 14a made of a light transmissive acrylic resin material and the part 11a of the plate 11 is made to be wider than the part 14a of the plate 14. Moreover a reflective plate 21 is set near the light source and composed of a first reflective part 21a in the front upper side of the light source, a second reflective part 21b in the front lower side, a third reflective part 21c in the rear upper side, and a fourth reflective part 21d in the rear lower side. As a result, the obtained luminaire can be used for both direct illumination which needs relatively a large quantity of light and indirect illumination which needs a small quantity of light by only one light source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminaire having both a direct illumination function and an indirect illumination function with one light source, and a mirror cabinet equipped with this luminaire.

[0002]

2. Description of the Related Art Conventionally, in addition to direct lighting for directly illuminating a room or the like, indirect lighting for exerting a production effect has been widely used. The lighting equipment for indirect lighting has been devised in terms of the material and arrangement of the translucent member so that the light from the light source does not directly hit the eyes of the person and is radiated toward the wall or ceiling. . Also, a mechanism for adjusting the illuminance has been proposed. Also in the washroom space, it is widely desired to use indirect lighting in order to improve habitability.

[0003]

However, as a conventional lighting device for indirect lighting, a dedicated lighting device is used, and a lighting device that can be used as direct lighting has not been proposed yet. This is because direct lighting requires a relatively large illuminance to illuminate the entire room, whereas indirect lighting conversely diminishes the effect when the illuminance is large, and the functions required for both are exactly opposite. This is because. In addition, structurally, even for lighting fixtures that can be used as both direct and indirect lighting, the ratio of the amount of irradiation to the wall or ceiling to the amount of irradiation to the room is uniquely determined, and it depends on the user's preference and situation. There has not yet been proposed anything that can adjust the irradiation amount of direct lighting and indirect lighting.

In particular, since the washroom space is not generally large, it is often difficult in space to install a lighting device for indirect illumination on a wall or the like in addition to the vanity, which is an indirect illumination in the washroom. Is a major reason why it has not been widely adopted. Further, there has been proposed such that a part of light from a lighting device provided on the upper part of the vanity is reflected upward to be used as indirect illumination (for example, JP-A-63-1).
96235, etc.), the amount of light is small, so that an illuminance sufficient to illuminate the entire washroom space cannot be obtained, and it is necessary to separately install a lighting fixture on the ceiling or the like.

According to the present invention, one light source can be used as both direct illumination and indirect illumination with sufficient illuminance, and the ratio of direct illumination and indirect illumination can be changed according to the preference and situation of the user. An object is to provide a lighting fixture and a mirror cabinet equipped with the lighting fixture.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention forms a part or all of the upper surface and the lower surface of a casing accommodating a light source with a transparent member, and the transparent member on the lower surface. Is smaller than the area of the translucent member on the upper surface.

In a preferred embodiment of the present invention, (1) an upper reflection plate for reflecting upward light from a part of the upper side of the light source inside the casing, and light from the rest of the light source downward. A lower reflecting plate for reflecting is provided respectively. (2) The irradiation angle from the reflector is configured such that the upper side is large and the lower side is small. (3) Part or all of the reflection plate is formed of a flexible material. (4) The irradiation angle from the reflection plate can be adjusted so that the upper side and the lower side are independent or interlocked. (5) Ratio of light emitted upward by the upper reflector and light emitted downward by the lower reflector by adjusting the angle and / or the reflection area of the upper and lower reflectors. To be adjustable. (6) The surface of the translucent member on the lower surface of the casing has a structure for diffusing light.

Further, the present invention is characterized in that the above-mentioned lighting equipment is provided on the upper part of the mirror cabinet.

[0009]

According to the above construction, a part or all of the upper surface and the lower surface of the casing accommodating the light source is formed of a translucent member,
Since the area of the light-transmissive member on the lower surface is smaller than the area of the light-transmissive member on the upper surface, it is possible to use both direct illumination that requires a relatively large amount of light with one light source and indirect illumination that requires a small amount of light.

Inside the casing, there are provided an upper reflecting plate for reflecting the light from the upper part of the light source upward and a lower reflecting plate for reflecting the light from the remaining part of the light source downward. If so, the light from the light source can be efficiently emitted in two directions.

The irradiation angle from the reflector is large on the upper side,
When the lower side is configured to be small, the upper light becomes a light light suitable for indirect illumination, and the lower light becomes a light suitable for direct illumination that intensively illuminates a relatively narrow range.

A part or all of the reflecting plate may be formed of a flexible material, the irradiation angle from the reflecting plate may be adjusted so that the upper side and the lower side are independent or interlocked, and further, the upper side. By adjusting the angle and / or the reflection area of the lower reflector, it is possible to adjust the ratio of the light emitted upward by the upper reflector and the light emitted downward by the lower reflector. By doing so, the ratio of indirect lighting to direct lighting can be changed according to the user's preference, the atmosphere of the room, etc., and the habitability is improved.

If the surface of the translucent member on the lower surface of the casing has a structure for diffusing light, the light gathered by using a reflector or the like is radiated in a narrow range like a spotlight to make the user dazzle. I don't feel it.

If the above-described lighting equipment is provided on the upper part of the mirror cabinet, indirect lighting can be obtained even in a small washroom, and the habitability is improved. Also, if the amount of light can be adjusted, it is easy to use such as increasing the light on the indirect lighting side when washing the face or washing the hair, and increasing the scene on the direct lighting side during makeup or shaving. Usability is significantly improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 3 show the configuration of an embodiment of the present invention, in which a mirror cabinet 1 is constructed by attaching a mirror 3 to the front surface of a substantially flat mirror cabinet main body 2 integrally molded of resin or the like. In addition, a long lighting device 5 extending in the width direction is provided on the upper part. Reference numeral 7 in the drawing is an operation plate provided with a switch and an outlet for the lighting equipment.

The luminaire 5, as shown in cross section in FIG.
A long light source 15 such as a straight tube fluorescent lamp is arranged in a substantially triangular prism-shaped casing 10 surrounded by an upper plate 11, a pair of left and right side plates 12, a back plate 13 and a lower plate 14. The upper plate 11 and the lower plate 14 are partially configured as translucent parts 11a and 14a formed of a translucent material such as acrylic,
The translucent portion 11a of the upper plate 11 is the translucent portion 14a of the lower plate 14.
Is formed wider than. The lighting fixture 5 may have a rectangular parallelepiped shape. At least one of the upper plate 11 and the lower plate 14 is partially or entirely configured as a detachable separate body in consideration of maintainability such as replacement of the light source 15.
The casing 10 may be omitted, and the light source 15 and the reflection plate 21 may be always exposed.

Further, in the casing 10, a reflector 21 extending in the width direction for reflecting the light from the light source 15 by dividing the light upward (for indirect illumination and illumination of the entire room) and downward (for users of the mirror cabinet) is provided. Are arranged in the vicinity of the light source 15. The reflection plate 21 is formed by a known optical design so that the reflection efficiency and the like are optimized. Reflector 21
Is a first reflection part 21a on the front upper side of the light source 15, a second reflection part 21b on the front lower side, and a third reflection part 2 on the rear upper side.
1c and a fourth reflecting portion 21d on the lower rear side, and one end of each is arranged close to the light source 15.
The upper reflecting plate is configured by the first reflecting portion 21 and the third reflecting portion 21c, and the second reflecting portion 21b and the fourth reflecting portion 21.
The lower reflection plate is formed by d and. Upper reflector (21
The light radiated upwards through a, 21c) has a large irradiation area so as to be suitable for indirect illumination or illumination of the entire room, and is downwards through the lower reflection plates (21b, 21d). The light emitted is the user P of the mirror cabinet 1.
The irradiation area is relatively small so that the light can be directly illuminated.

All of the first to fourth reflecting portions 21a ... Are molded partially or entirely of a flexible material.
It is configured so that the reflection angle of the light from 5 and the irradiation area can be adjusted arbitrarily. For example, the second and fourth reflectors 2
By curving so that the space formed by the ends of 1b and 21d on the side opposite to the light source 15 is narrowed, light close to a spotlight is obtained, and the illuminance on the mirror 3 side is improved, which is convenient for makeup. Is. In addition, the first and third reflecting portions 21a,
If 21c is expanded from the position shown in the figure, the irradiation area becomes wider, which is suitable for illuminating a wide range.

As a mechanism for adjusting the irradiation area of the reflection plate 21, for example, (1) the end portions of the respective reflection portions 21a ... Which are close to the light source 15 are fixed, and the rod-shaped member is provided at the end portion opposite to the light source 15. A method in which the reflection plate 21 is wound by attaching the both ends to the outside of the side plate 12 of the casing 10 as operation parts and rotating the operation part (2) The light source 15 of each reflection part 21a. Is fixed to the end portion of each of the reflecting portions 21a, which is opposite to the light source 15, and the end portion and the casing 10 are fixed.
Using the gap between the upper plate 11 and the lower plate 14 as an adjustment allowance,
Method of moving back and forth the pressing members respectively provided on the back sides of the reflection parts 21a .. (3) The end portions of the reflection plates 21a .. Various methods are conceivable, such as a method of adjusting the ratio of the amount of light from the upper side to the lower side (4) a method of automatically performing the above operation using a drive source. In the above method (3),
The irradiation area can be changed between the upper side and the lower side, and the irradiation amount can be changed, so that more appropriate adjustment can be performed.

A transparent portion 14a of the lower plate 14 of the casing 10.
A plurality of protruding ridges 16 having an arcuate shape in cross section are provided to extend in the width direction, and these protruding ridges 16 allow the lower reflecting portion 21 to be formed.
Light from the light source 15 collected at b and 21d is diffused, and a strong light locally strikes the user P of the mirror cabinet 1 and feels dazzling, or the necessary portion is not illuminated and usability becomes poor. Are prevented.

According to the mirror cabinet 1 provided with the luminaire having the above-described structure, as conceptually shown in FIG. 4, the rear wall and the ceiling are irradiated with light that illuminates the whole in a relatively wide range. Then, downwardly, the user P and the mirror 3 are irradiated with light having a necessary and sufficient illuminance for makeup or the like in a relatively narrow range.

In addition to the above configuration, various modifications of the present invention are conceivable. For example, the transparent portion 1 is provided on substantially the entire upper surface of the upper plate 11.
1a, and a plate material is slidably provided on the upper portion thereof, the amount of upward light may be increased or decreased without adjusting the angle or the like of the reflecting portions 21a. In addition, the reflector 21
By attaching a mechanism for interlocking the adjustment of a ... between the upper side and the lower side, the ratio of the upper and lower light amounts can be appropriately changed.

[0023]

According to the present invention, part or all of the upper surface and the lower surface of the casing accommodating the light source is formed of a transparent member, and the area of the transparent member on the lower surface is equal to that of the transparent member on the upper surface. Since the area is smaller than the area, one light source can be used as both direct illumination that requires a relatively large amount of light and indirect illumination 1 that requires a small amount of light.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a front view of a lighting device.

FIG. 4 is a conceptual side view showing a ratio of light amounts of indirect illumination and direct illumination.

[Explanation of symbols]

1 mirror cabinet 5
Lighting equipment 10 Casing 15
Light source 21 Reflector

Continuation of the front page (72) Inventor Fumio Okumura Inside Tohoku Kikai Co., Ltd. 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture

Claims (8)

[Claims] 1. A casing containing a light source, wherein a part or all of an upper surface and a lower surface of the casing are formed of a transparent member, and an area of the transparent member of the lower surface is smaller than an area of the transparent member of the upper surface. Lighting equipment characterized by. 2. An inner side of the casing is provided with an upper reflecting plate for reflecting upward light from a part of the upper side of the light source and a lower reflecting plate for reflecting light from the rest of the light source downward. The luminaire according to claim 1, wherein each luminaire is provided. 3. The lighting fixture according to claim 2, wherein the irradiation angle from the reflection plate is set such that the upper side is large and the lower side is small. 4. The luminaire according to claim 1, wherein a part or all of the reflector is made of a flexible material. 5. The lighting apparatus according to claim 2, wherein the irradiation angle from the reflector is adjustable so that the upper side and the lower side can be independently or interlocked with each other. 6. The light emitted upward by the upper reflector and the light emitted downward by the lower reflector by adjusting the angles and / or the reflection areas of the upper and lower reflectors. The luminaire according to claim 2, wherein the ratio of the above is adjustable. 7. The surface of the translucent member on the lower surface of the casing is
The luminaire according to claim 1, having a structure for diffusing light. 8. A mirror cabinet provided with the lighting fixture according to claim 1 at an upper portion thereof.