JP2002157907A - Lighting system with built-in mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat luminescent surface part having a flat mirror finished surface part, affluent in design flexibility of a luminescent surface shape and capable of providing uniform surface emission. SOLUTION: This device is provided with a flat light guide plate 2 with a dot pattern printed on its back face, light sources 3 disposed on both the left and right end face sides of the light guide plate 2, a reflecting sheet 6 disposed on the rear face of the light guide plate 2 for reflecting light emitted from the rear face of the light guide plate 2, a diffusing sheet 8 disposed on the front face of the light guide plate 2 for uniformly emitting the light from the front face of the light guide plate 2, and a cover glass plate 9 disposed on the front face of the diffusing sheet 8 and having the rectangular mirror finished surface part 12 formed by carrying out a partial silvering process. The dot pattern is so designed that the area occupied by the dots are gradually increased as it comes nearer to the center of the light guide plate 2 from the light source 3 so as to uniformly irradiate the light from the front face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device used for a vanity stand, and more particularly to a mirror-integrated lighting device in which a mirror and lighting are integrated.

[0002]

2. Description of the Related Art In a conventional vanity stand, a front mirror integrated type illumination is performed by masking the left and right or upper and lower portions of the mirror into a strip shape in a mirror manufacturing process, performing a partial silvering process, and then masking. A diffusion surface is formed on the surface opposite to the strip-shaped silver-plated surface by sandblasting or the like, and a fluorescent lamp serving as a light source is installed behind the diffusion surface for irradiation.

[0003]

The above-mentioned conventional vanity-integrated lighting system for a vanity table has the following problems.

First, if the light emission area of the illuminating section is to be increased, the brightness of a portion away from the light source is insufficient, so that the number of light sources installed on the back is increased so as to obtain uniform surface light emission. And increase manufacturing costs and power consumption.

[0005] Second, the shape of the light emitting surface of the lighting unit is limited to some extent. If it is attempted to make the light emitting surface shape of the lighting unit correspond to any shape, in an extreme case, it is necessary to install, for example, a fluorescent lamp on the back of the front mirror over the entire area of the mirror and emit light on the entire back surface, and in reality, Absent.

Third, since the light source is installed behind the front mirror, the thickness of the mirror surface is increased, and the installation space is required.

Fourth, since the light source is installed behind the front mirror, the entire mirror must be removed when replacing the light source, which is a large-scale operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vanity table in which a light emitting surface of an illuminating section can be made to correspond to any shape without increasing the number of light sources, the thickness of a mirror surface portion is reduced, and the light source can be easily replaced. It is an object of the present invention to provide a mirror-integrated lighting device that can be used for a lighting device.

[0009]

SUMMARY OF THE INVENTION The present invention provides a flat light guide plate having a dot pattern printed on the back surface thereof, light sources disposed on opposite end surfaces of the light guide plate, and a light guide plate which covers the periphery of the light source. A reflector opening in the direction of the end face of the light guide, an illumination box provided around the reflector, a reflection sheet disposed on the back of the light guide to reflect light emitted to the back of the light guide, and a front face of the light guide. A light diffusing sheet disposed on the front surface of the light guide plate so as to emit light uniformly, and a cover glass disposed on the front surface of the light diffusing sheet and partially having a mirror surface.

The dot pattern is characterized in that the area occupied by the dots gradually increases from the light source toward the center of the light guide plate.

Further, the present invention provides a flat light guide plate having a dot pattern printed on the back surface, a light source disposed on one end surface side of the light guide plate, and an opening in the direction of the end surface of the light guide plate covering the light source. Reflector, a lighting box provided around the reflector, a reflection sheet placed on the back of the light guide plate to reflect light coming out from the back of the light guide plate, and a uniform light in the front direction of the light guide plate. A diffusion sheet disposed on the front surface of the light guide plate to emit light, a cover glass disposed on the front surface of the diffusion sheet and having a mirror surface part in part,
It is characterized by having.

[0012] The dot pattern is characterized in that the area occupied by the dots gradually increases from the light source toward the opposite end face of the light guide plate.

[0013]

Next, an embodiment of the present invention will be described with reference to the drawings.

In the mirror-integrated illuminating device used in the vanity stand of the present invention, a fluorescent lamp is disposed as a light source on one end face or opposite end faces of the light guide plate, and light is emitted from the end face of the light guide plate. The edge light method is adopted to uniformly emit light on the front surface of the light guide plate.

FIG. 1 is a perspective view showing an embodiment of a mirror-integrated illuminating device according to the present invention when light sources are arranged on two opposing sides of a light guide plate. FIG. 2 is a perspective view showing the mirror shown in FIG. It is an exploded perspective view of an integrated lighting device. FIG. 3 is a central sectional view of the mirror-integrated lighting device shown in FIG.

The mirror-integrated lighting device 1 shown in FIGS.
A flat light guide plate 2 having a dot pattern 10 printed on its back surface, a light source 3 disposed on both left and right end surfaces of the light guide plate 2,
A reflector 4 that covers the light source 3 and opens toward the end face of the light guide plate 2, an illumination box 5 provided around the reflector 4 to protect the light source 3 and the reflector 4, and light emitted from the back surface of the light guide plate 2. A reflection sheet 6 disposed on the back surface of the light guide plate 2 to reflect light, a back plate 7 covering the back surface, and a diffusion sheet disposed on the front surface of the light guide plate 2 to uniformly emit light on the front surface of the light guide plate 2. 8 and diffusion sheet 8
And a cover glass 9 having a rectangular mirror surface portion 12 formed by performing a partial silvering process, and a support plate 14 for covering and supporting the entire back surface.

A reflection tape 11 is attached to all the small edges of the light guide plate 2 where the light source 3 is not disposed in order to effectively use the light that has entered the light guide plate 2 from the light source 3.
As the reflection tape 11, a reflection member such as an aluminum tape or a silver vapor-deposited film is used.

As the light source 3, for example, two 18 W fluorescent lamps are used, and the periphery of the light source 3 is covered with a reflector 4 such as a silver vapor-deposited film.

The light guide plate 2 is made of glass, acrylic resin or the like, and a dot pattern 10 for scattering light is screen-printed on the back surface of the light guide plate 2.

When the light source 3 is disposed only on one end face side of the light guide plate 2 so that light is uniformly emitted from the front face, the dot pattern 10 is formed by dots from the light source 3 side to the opposite end face. When the light sources 3 are arranged on the opposite end faces of the light guide plate 2, the area occupied by the dots from the side of each light source 3 toward the center of the light guide plate 2 is increased. Are designed to become progressively larger.

Here, the design that the area occupied by the dots gradually increases means that the area of one dot is designed to increase gradually and the case where the area of one dot is the same is designed. And the case where the number of dots is designed to be gradually increased.

The mirror-integrated lighting device 1 shown in FIGS.
By using the light guide plate 2 by the edge light method as a uniform surface light emitter, the silvering process can be performed only by overlapping the cover glass 9 having the mirror surface portion 12 formed by performing the partial silvering process on the surface of the light guide plate 2. Uniform surface light emission can be obtained only from the light emitting surface portion 13 that has not been made.

The shape pattern of the mirror surface portion 12 formed by the silvering process is various, such as a rectangle, a circle, a geometric pattern, a picture, and the like.
A variety of designs for the light-emitting surface can be obtained simply by changing the. As described above, since the mirror surface portion 12 and the light emitting surface portion 13 are an integral structure of the cover glass 9, a flat design can be realized.

In the above-described embodiment, the mirror-integrated lighting device used for the vanity table has been described.
INDUSTRIAL APPLICABILITY The present invention can be used as an integrated type in a hand mirror or a bathroom mirror.

[0025]

As described above, the present illumination has a structure in which the light guide plate is made to emit light uniformly from the surface by the edge light method, and a cover glass which can be partially silvered in various designs is overlapped on the surface. Therefore, the light emitting surface shape is rich in designability, and the light emitting surface portion can obtain uniform surface light emission.

In addition, since a cover glass that has been subjected to a partial silvering process is used, a flat design can be realized with an integral structure of the mirror surface portion and the light emitting surface portion.

Further, since the entire light emitting surface can be uniformly illuminated by the edge light method, the shadow of the light source on the light emitting surface can be eliminated.

Further, when light is applied to the dot pattern formed on the back surface of the light guide plate, scattered light is generated in the forward direction, so that the illumination light becomes diffused light.

Further, since the fluorescent lamp is installed in the illumination box, the fluorescent lamp can be easily attached and detached only by opening and closing the illumination box without removing the entire mirror.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a mirror-integrated lighting device of the present invention.

FIG. 2 is an exploded perspective view of the mirror-integrated lighting device shown in FIG.

FIG. 3 is a central sectional view of the mirror-integrated lighting device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mirror integrated lighting device 2 Light guide plate 3 Light source 4 Reflector 5 Illumination box 6 Reflection sheet 7 Back plate 8 Diffusion sheet 9 Cover glass 10 Dot pattern 11 Reflective tape 12 Mirror surface part 13 Light emitting surface part 14 Support plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Nakai Hijimi F-term in Nippon Sheet Glass Co., Ltd. 3-5-11, Doshumachi, Chuo-ku, Osaka-shi, Osaka 2H038 AA55 BA06 3B111 AA09 AB01 AC01 AC02 AC03 AD01 3K014 AA02 QA06

Claims (6)

[Claims] A light guide plate having a dot pattern printed on a back surface thereof; a light source disposed on both end faces of the light guide plate facing each other; and a reflector covering the light source and opening toward an end face of the light guide plate. A lighting box provided around the reflector, a reflection sheet disposed on the back of the light guide plate to reflect light emitted in the back direction of the light guide plate, and a light emitting device for uniformly emitting light in the front direction of the light guide plate. 1. A mirror-integrated lighting device, comprising: a diffusion sheet disposed in front of a light guide plate; and a cover glass disposed in front of the diffusion sheet and partially having a mirror surface. 2. The mirror-integrated lighting device according to claim 1, wherein the dot pattern is a pattern in which the area occupied by the dots gradually increases from the light source toward the center of the light guide plate. 3. A flat light guide plate having a dot pattern printed on the back surface thereof, a light source disposed on one end surface side of the light guide plate, a reflector covering the light source and opening toward the end surface of the light guide plate; A lighting box provided around the reflector, a reflection sheet placed on the back of the light guide plate to reflect light emitted in the back direction of the light guide plate, and a light emitting device that emits light uniformly in the front direction of the light guide plate A mirror-integrated lighting device, comprising: a diffusion sheet disposed on a front surface of a light guide plate; and a cover glass disposed on a front surface of the diffusion sheet and partially having a mirror surface. 4. The mirror-integrated illuminating device according to claim 3, wherein the dot pattern is a pattern in which the area occupied by the dots gradually increases from the light source toward the opposite end face of the light guide plate. . 5. The mirror-integrated lighting device according to claim 1, wherein the mirror portion is formed by performing a silvering process. 6. The mirror part has a rectangular or circular shape pattern.
2. A geometric pattern or a picture pattern.
The mirror-integrated lighting device according to any one of claims 1 to 5.