JP2010227261A - Counter with light emitting function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a counter with a light emitting function combining excellent light emission and improvement in appearance of a counter part. <P>SOLUTION: The counter with the light emitting function is provided with the counter part 1 composed of a decorative plate 3 and a light guide plate 4 laminated on the decorative plate 3 to emit light entering from a side end face, from an upper face, and a light source 2 irradiating the light guide plate 4 of the counter part 1 with light from the side end face. The lower face of the light guide plate 4 is provided with a plurality of light guide patterns 6 in island shape to diffuse and reflect the light that has entered the light guide plate 4. In the light guide plate 4, a light transmitting region 8 consisting of a portion not provided with the light guide pattern 6 at the lower face is formed as a sea, while a plurality of diffusion reflecting regions consisting of portions provided with light guide patterns 6 at the lower face are formed in island shape, and the decorative plate 3 is visualized through the light transmitting region 8 occupying a greater part in the light guide plate 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a counter with a light emitting function.

  The upper surface of the counter unit such as a cooking table is generally illuminated by an upper lighting fixture, but a counter with a light emitting function that enables the counter unit to emit light in order to illuminate the hand and the object placed on the counter unit, for example, is patented It is disclosed in Document 1.

  In this device, a counter part is constituted by a light guide plate that emits light incident from the side end surface on the reflection plate from the upper surface, and the light guide plate emits light by irradiating the light guide plate from the side end surface with a light source. is there. In addition, a printed layer having a plurality of dots formed as a light guide pattern is provided on the entire lower surface of the light guide plate, and the light incident on the light guide plate is diffused and reflected by the light guide pattern. Light is emitted substantially uniformly from the entire upper surface.

JP 2007-151717 A

  By the way, in the counter with a light emission function of the said patent document 1, the reflective plate exists under the light guide plate, and the external appearance seen through the light guide plate is not considered.

  Here, it is possible to arrange a decorative plate below the light guide plate so that the decorative plate can be seen through the light guide plate. However, in this case, when the light guide pattern is formed over the lower surface of the light guide plate as in Patent Document 1, light that passes through the light guide plate and reaches the decorative plate is diffusely reflected by the light guide pattern. Is difficult to see. In addition, the decorative plate is easy to see unless the light guide pattern is formed, but in this case, the light reaching the lower surface of the light guide plate from the light source cannot be diffusely reflected to the upper surface side that is the output surface of the light guide plate. It is difficult to make the light guide plate emit light well.

  This invention is made | formed in view of the said conventional situation, Comprising: It makes it a subject to provide the counter with a light emission function which made compatible the favorable light emission of a counter part, and the improvement of an external appearance.

  The counter with a light emitting function of the present invention includes a counter unit 1 including a decorative plate 3 and a light guide plate 4 that is laminated on the decorative plate 3 and emits light incident from a side end surface from the upper surface. The light guide plate 4 includes a light source 2 that emits light from a side end surface. A plurality of light guide patterns 6 for diffusing and reflecting light incident on the light guide plate 4 are provided in an island shape on the lower surface of the light guide plate 4, and the light guide plate 4 is not provided with the light guide pattern 6 on the lower surface. The light transmissive region 8 made of the sea is used as a sea, and a plurality of diffuse reflection regions made of a portion where the light guide pattern 6 is provided on the lower surface are formed in an island shape. And the decorative board 3 is visually recognized.

  The light guide pattern is preferably formed in a dot shape and dispersed at a predetermined pitch on the lower surface of the light guide plate.

  In the present invention, the light incident on the light guide plate from the light source can be diffused and reflected by the light guide pattern of each diffusion region and emitted from the upper surface, so that the light guide plate can emit light. The decorative board can be visually recognized through the light-transmitting region occupying most of the area, and the appearance can be improved. In addition, when the ratio of the diffuse reflection region in the light guide plate is reduced, the decorative plate can be seen through the light transmitting region even when the light guide plate emits light, and the appearance of the light guide plate during light emission is also improved. can do.

  In addition, when the light guide pattern is formed in a dot shape and dispersed at a predetermined pitch on the lower surface of the light guide plate, the entire decorative plate can be visually recognized through a light-transmitting region that occupies most of the light guide plate. , The appearance can be further improved.

It is the top view which showed typically the counter with a light emission function of an example of embodiment of this invention. It is sectional drawing of a counter part same as the above. It is explanatory drawing which showed the mode of reflection of the light in the light guide plate of another example. Furthermore, it is sectional drawing of the counter part of another example.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The counter with a light emitting function of an example of this embodiment shown in FIG.1 and FIG.2 is provided in the cooking stand installed in a kitchen, Comprising: The counter part 1 which comprises the top | upper surface of a cooking table, and the counter part 1 And a light source 2 for emitting light.

  The counter unit 1 is disposed on a cabinet (not shown) formed in a box shape of a cooking table, and the counter unit 1 is a decorative plate 3 and a light guide plate laminated on the decorative plate 3 as shown in FIG. 4.

  The decorative board 3 is made of colored artificial marble. The upper surface of the decorative board 3 is a decorative surface in which a beautiful pattern peculiar to artificial marble appears, and has no translucency.

  The light guide plate 4 is thinner than the decorative plate 3 and is made of a material such as acrylic resin or glass having translucency.

  The decorative plate 3 and the light guide plate 4 are formed in, for example, a rectangular shape having substantially the same shape and the same size in plan view, and constitute a counter unit 1 having a rectangular shape in plan view.

  The light guide plate 4 emits light by emitting light incident from the side end surface from the upper surface, with the side end surface constituting one side as the incident surface and the upper surface as the output surface.

  The lower surface of the light guide plate 4 is provided with a plurality of island-like light guide patterns 6 that diffusely reflect light incident from the side end surface of the light guide plate 4 toward the upper surface. Although FIG. 3 shows another example, a state in which light is diffusely reflected by the light guide pattern 6 is schematically shown.

  In this example, a light guide pattern 6 is formed in a region surrounded by a circular broken line shown in FIG. 1 on the lower surface of the light guide plate 4, and these light guide patterns 6 are dispersed at a predetermined pitch in the light guide plate 4 having a rectangular shape in plan view. And are evenly arranged vertically and horizontally.

  Each light guide pattern 6 has the same shape. Each light guide pattern 6 is formed by printing on the lower surface of the light guide plate 4 or engraving irregularities, but it is preferable that all the light guide patterns 6 are formed by the same method.

  Then, a large number of dots formed by the printing or a large number of minute protrusions formed by engraving diffuse and diffuse the light in the light guide plate 4 to the upper surface side.

  Portions other than the locally provided light guide patterns 6 on the lower surface of the light guide plate 4 are smooth and translucent surfaces. The light guide plate 4 includes a diffuse reflection region 7 having a portion where the light guide pattern 6 is provided on the lower surface, and a light transmitting portion having a light transmitting surface where the light guide pattern 6 is not provided on the lower surface. The light transmission region 8 occupies most of the light guide plate 4. That is, in the light guide plate 4, the diffuse reflection region 7 is formed in a plurality of islands with the light transmitting region 8 as the sea.

  A light source block 5 is disposed at a position facing the side end surface constituting the incident surface of the rectangular light guide plate 4. The light source block 5 is provided only on one side of the light guide plate 4. The light source block 5 includes a plurality of LEDs 2 a (see FIG. 3) arranged in parallel along the longitudinal direction of the side end surface constituting the incident surface, and the light source 2 is configured by the plurality of LEDs 2 a.

  In order to emit light from the light guide plate 4, each LED 2a emits light. As a result, light is emitted from each LED 2 a arranged outside the light guide plate 4 toward the side end face of the light guide plate 4, and this light enters the light guide plate 4 from the side end face of the light guide plate 4.

  A part of the light incident on the light guide plate 4 travels in the light guide plate 4 toward the opposite side end surface side while being partly emitted from the upper surface of the light guide plate 4, whereby the light guide plate 4 emits light.

  When the light guide plate 4 emits light, light incident on the light guide plate 4 from the side is mainly diffusely reflected by the light guide pattern 6 of the diffuse reflection region 7 provided partially, and most of the light guide plate 4 is reflected. In the occupying translucent region 8, the light is totally reflected on the upper and lower surfaces of the light guide plate 4. Therefore, the light incident on the light guide plate 4 from each LED 2a can reach a position away from each LED 2a on the light guide plate 4, and the light guide plate 4 can emit light.

  In this way, by causing the light guide plate 4 constituting the surface layer of the counter unit 1 to emit light, for example, compared with the case where the counter unit 1 is illuminated from above with a lighting fixture, the placed object placed on the hand or the counter unit 1 is There is an advantage that it can shine brightly, the shadow of the placed object appears near the placed object at the time of light emission, and the position of the placed object can be easily recognized.

  Moreover, the light guide plate 4 enters a non-light emitting state by turning off the LEDs 2a. In this non-light emitting state, most of the light guide plate 4 is composed of a light transmitting region 8, so that when the counter unit 1 is viewed from above as shown in FIG. The plate 3 is visible. Therefore, when the light guide plate 4 is in a non-light emitting state, a beautiful pattern applied to the entire top surface of the decorative plate 3 can be seen through the light guide plate 4 and the appearance of the counter unit 1 can be improved. .

  Further, when the ratio of the diffuse reflection region 7 in the light guide plate 4 is reduced, the decorative plate 3 can be seen through the light transmitting region 8 even when the light guide plate 4 emits light. The appearance at the time of light emission can also be improved.

  In providing each light guide pattern 6, the density of a large number of dots and minute projections formed is substantially uniform in all the light guide patterns 6, and within the region of the single light guide pattern 6. However, the density of the dots and minute protrusions may be varied in consideration of the arrangement of the LEDs 2a.

  FIG. 3 is an example in which the density of the light guide pattern 6 in the entire light guide plate 4 is varied in the above example, and the density of the light guide pattern 6 is determined from the side end surface constituting the incident surface on the light source block 5 side in the light guide plate 4. It is made to become so large that it goes to the side end surface side of the opposite side. In this example, the density of the dots and microprojections in each light guide pattern 6 may be substantially uniform, or increases from the side end surface constituting the incident surface toward the opposite side end surface side. It may be different.

  In the light guide plate 4, the light from each LED 2 a becomes harder to reach the side opposite to the incident surface, but the light guide plate 4 is opposite to the incident surface by making the density of the light guide pattern 6 different as described above. The closer to the side, the easier it is for the internal light to be emitted, and as a result, the light guide plate 4 can emit light uniformly.

  In each of the above examples, the upper surface of the light guide plate 4 is exposed. However, when the upper surface constituting the light exit surface of the light guide plate 4 is contaminated, the dirt diffuses and reflects the light in the light guide plate 4 toward the lower surface. There is a risk of changing the light emission state of the light plate 4.

  Therefore, in each of the above examples, a transparent protective sheet 10 may be provided on the light guide plate 4 as shown in FIG. By providing the protective sheet 10 in this manner, the upper surface of the light guide plate 4 can be prevented from being stained, and the light guide plate 4 can emit light in a desired state.

  In this case, the protective sheet 10 may be provided on the light guide plate 4 without a gap. However, in this case, light emitted from the upper surface of the light guide plate 4 is reflected toward the light guide plate 4 by the lower surface of the protective sheet 10. It becomes easy, and it becomes difficult to emit light through the protective sheet 10.

  Therefore, it is preferable to form the air layer 11 by arranging a spacer or the like between the lower surface of the light guide plate 4 and the upper surface of the protective sheet 10 as shown in FIG. By providing the air layer 11, the light emitted from the light guide plate 4 to the air layer 11 is largely refracted, and the light is hardly reflected by the lower surface of the protective sheet 10, and the light is emitted well through the protective sheet 10. Can be made.

  In addition, each light guide pattern 6 in each of the above examples may be provided by attaching a reflective member to the lower surface of the light guide plate 4. Further, the decorative board 3 may be made of a decorative board other than artificial marble as long as its upper surface has a decorative surface colored or patterned. The light guide plate 4 may be formed of other materials. Further, the counter with a light emitting function of the present invention may be applied to other floor cabinets such as a sink and a stove stand, or a counter provided without protruding from a wall.

DESCRIPTION OF SYMBOLS 1 Counter part 2 Light source 3 Decorative plate 4 Light guide plate 6 Light guide pattern 7 Diffuse reflection area 8 Light transmission area

Claims (2)

  A counter unit composed of a decorative plate and a light guide plate that is laminated on the decorative plate and emits light incident from the side end surface from the upper surface, and a light source that irradiates light to the light guide plate of the counter unit from the side. A plurality of light guide patterns that diffusely reflect light incident on the light guide plate is provided on the lower surface of the light guide plate in an island shape, and the light guide plate includes a portion in which the light guide pattern is not provided on the lower surface. As a sea, a diffuse reflection area consisting of a portion where the light guide pattern is provided on the lower surface is formed in a plurality of islands so that the decorative plate can be seen through the light transmissive area occupying most of the light guide plate. A counter with a light emitting function, characterized by the fact that   The counter with a light emitting function according to claim 1, wherein the light guide pattern is formed in a dot shape and dispersed at a predetermined pitch on a lower surface of the light guide plate.

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