JP6129079B2 - Designable light emitting device and translucent member - Google Patents

Description

  The present invention relates to a design light-emitting device and a translucent member used for, for example, a store name, a logo lighting sign, a lighting advertisement, and the like.

  2. Description of the Related Art Conventionally, a design light emitting device called a lighting sign or a lighting advertisement for brightly displaying a store name or a logo has been provided. Such a design light emitting device diffuses light from a light source on a front panel to emit diffused light, and brightly displays a design such as a store name or a logo. This design light emitting device has high visibility and is beautiful, and is therefore used in various places such as displaying a brand name at the front or entrance of a brand store.

  Such a design light emitting device has been changed from a conventional neon sign to an LED sign using a recent LED, and various design properties are required.

  Here, a panel plate used for a light-emitting panel device and a method for producing the same have been proposed as a means for enhancing decoration using light (see Patent Document 1). This light-emitting panel device represents an arbitrary pattern or pattern by a light-emitting pattern formed by a collection of uneven structures on the back surface of the panel board. In the specification, it is described that a half-dot light source side has a small area and a portion far from the light source has a large area to adjust the area reminiscent of gradation.

JP 2009-25666 A

  However, for example, in the case of the alphabet A, the above-described light emitting panel device merely gradations the entire character, such as whether one of the upper part and the lower part of A is darkened and the other lightened. For this reason, the above-described light emitting panel device has a poor three-dimensional appearance of the design itself such as letters, figures, and patterns.

  In view of the above-described problems, an object of the present invention is to provide a design light-emitting device and a light-transmitting member that have a light-emitting surface rich in stereoscopic effect.

This invention has the 1st partial light transmission part and the 2nd partial light transmission part by which the stroke was divided | segmented at least into 2 in the width direction, The said 1st partial light transmission part and the 2nd partial light transmission part depend on site | parts. A light transmission amount adjustment layer that changes the light transmission amount with gradation is provided, and the light transmission amount adjustment layer of the first partial light transmission portion and the light transmission amount adjustment layer of the second partial light transmission portion are the first light transmission amount adjustment layer. It has the translucent member comprised so that it might have a part from which the mutual light transmission amount differs in the boundary part vicinity which has divided | segmented the partial light transmission part and the said 2nd partial light transmission part .

  According to the present invention, it is possible to provide a design light-emitting device and a light-transmitting member that have a light-emitting surface rich in stereoscopic effect.

The disassembled perspective view of the designable light-emitting device. Explanatory drawing of the front and inside of a designable light-emitting device. Explanatory drawing by the longitudinal cross-section of a designable light-emitting device. Explanatory drawing of a groove | channel and a termination | terminus groove | channel. Explanatory drawing of the gradation of a light transmission amount adjustment layer. Explanatory drawing which represents before and after light emission of the designable light-emitting device with a photograph. FIG. 6 is an explanatory diagram of a design-type light emitting device of Example 2. FIG. 6 is an explanatory diagram of the design-type light emitting device of Example 3. Sectional drawing which shows the vertical end surface of the designable light-emitting device of Example 4. FIG. FIG. 10 is an exploded perspective view of the design light-emitting device of Example 5. Explanatory drawing of the designable light emitting device of other examples Explanatory drawing which shows the other example of the gradation of a light transmission amount adjustment layer.

  The inventors of the present invention have intensively studied to provide a designable light-emitting device having a three-dimensional appearance excellent in designability. At first, the present inventors thought that it would be sufficient to apply gradation so that it looks three-dimensional, and experimented with gradation that brightened the part that wanted to appear convex and darkened the part that wanted to appear concave. However, such a gradation looks three-dimensional as long as it is printed on paper or the like and viewed with reflected light. However, when it is printed on a translucent member and light is transmitted, the three-dimensional effect becomes very poor. It was.

  Accordingly, the present inventors have made various designs and intensive studies, and as a result, completed a design light emitting device that can clearly recognize a three-dimensional effect in a state where light is transmitted and the front surface is a light emitting surface.

  A feature of this design light emitting device is that the stroke of the light transmitting member is divided into at least a first partial light transmitting portion and a second partial light transmitting portion, and the light transmission amount adjusting layer of the first partial light transmitting portion and the second light transmitting portion. The light transmission amount adjustment layer of the partial light transmission portion is configured such that the light transmission amounts in the vicinity of the boundary portion dividing the first partial light transmission portion and the second partial light transmission portion are as different as possible. Is a point.

Note that a stroke (English: stroke) refers to a line having a width constituting a character, a figure, or a pattern, such as a line constituting a single stroke, a figure or a pattern constituting a character.
In addition, “the mutual light transmission amount in the vicinity of the boundary portion dividing the first partial light transmitting portion and the second partial light transmitting portion is as different as possible” means having different portions, It is preferable that the light transmission amount is different in half or more of the entire boundary portion, and more preferably 80% or more of the entire boundary portion is different.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The design light emitting device of the present invention can be applied to various characters, figures, and patterns. In the first embodiment, a roman character “D” that is a kind of serif font will be described as an example.

  1 shows an exploded perspective view of the design light emitting device 1 as viewed from the lower left of the front, FIG. 2 (A) shows a front view of the design light emitting device 1, and FIG. 2 (B) shows a design light emitting device. The front view showing the inside of 1 is shown.

  As shown in FIG. 1, the design light emitting device 1 includes casings 2 and 3 serving as a cover housing, a light transmitting plate 4 (light transmitting panel) as a light transmitting member, and a diffusion plate 5 (diffusion) as a diffusion member. Panel) and a housing 6 as a light blocking member.

  The light-transmitting plate 4 and the diffusing plate 5 are plate shapes cut out in the shape of letters, figures, or patterns of the same size, and are formed in a “D” shape in the first embodiment.

  The translucent plate 4 is formed of a transparent acrylic plate. The translucent plate 4 is not limited to an acrylic plate, but can be formed of a plate-like member made of an appropriate material that transmits light, such as a glass plate or a plastic plate. The translucent plate 4 is preferably transparent, but can also be translucent.

  The translucent plate 4 is formed thicker than the diffusion plate 5. In this embodiment, the size of one character is about 26 cm square, the wide part of the stroke is about 70 mm to 75 mm, and the thickness of the translucent plate 4 is 8 mm. That is, the ratio of the thickness to the central width of the stroke constituting the design is about 9: 1. It is possible to set the thickness to 5 mm with the same design size, and the ratio of the width and thickness of the stroke to about 15: 1. Some are preferred.

  That is, the ratio of the central width of the stroke constituting the design to the thickness of the light-transmitting plate 4 is preferably thicker than 20: 1, and more preferably thicker than 15: 1. More preferably, the thickness is more than about 10: 1. In the first embodiment, the preferable range is about 9: 1 which falls within the range of 8: 1 to 10: 1.

  The central width of the strokes that make up the design here refers to the width of a thick line that is mainly a vertical line if the typeface has a varying width, such as a Roman or Mincho style, For example, it refers to the width of one stroke, and in the case of a figure or pattern, it refers to the width of a thick line that occupies a relatively large portion of the line that draws them.

  The translucent plate 4 functions as a design portion that constitutes characters, figures, and patterns. In addition, the front surface (front surface) of the translucent plate 4 functions as a light emitting surface that is visually recognized by emitting light transmitted from the back side to the front side.

  The diffusion plate 5 is formed in a milky white translucent plate shape, and is formed thinner than the translucent plate 4.

  The housing 6 has a back surface 6a having the same shape as the translucent plate 4 and the diffusing plate 5, and is provided with a side surface portion 6b having a constant depth that rises perpendicularly from the side edge of the back surface 6a toward the front. It has been. Accordingly, the storage housing 6 has an opening 6c having the same shape as the translucent plate 4 and the diffusion plate 5 on the front surface, and is formed in a container shape that is covered by the side surface portion 6b and the back surface portion 6a except for the front surface.

  A plurality of locking projections 6 d are provided in the vicinity of the front surface inside the side surface portion 6 b of the storage housing 6. This locking projection 6d locks the diffusion plate 5 so as not to fall into the housing 6.

  The casings 2 and 3 are formed in a slightly larger shape when viewed from the front than the translucent plate 4 and the diffusion plate 5. The casings 2 and 3 have side portions 2a and 3a having a constant depth, and edges 2b and 3b having constant widths bent at right angles from the front end portions of the side portions 2a and 3a toward the light transmitting plate 4 and the diffusion plate 5 side. It consists of The side surface portions 2 a and 3 a are formed to be slightly larger than the housing case 6 and are formed to be shallower than the depth of the housing case 6. Therefore, the casings 2 and 3 are covered like a lid from the state in which the translucent plate 4 and the diffusing plate 5 are arranged on the front side of the housing 6. Thereby, the translucent plate 4 and the diffusing plate 5 are stably fixed so as not to be displaced. Note that the side surface portions 2 a and 3 a may be formed at the same depth as the housing case 6. Thereby, it can be made the shape which the level | step difference of side part 2a, 3a and the storage housing | casing 6 does not appear in a side surface.

  In this way, when the diffusion plate 5 is disposed on the front surface of the housing 6 and the light-transmitting plate 4 is overlaid thereon and the casings 2 and 3 are covered, the front view of FIG. Thus, the designable light-emitting device 1 representing characters, figures, and patterns is completed.

  As shown in the front view of the storage housing 6 in FIG. 2B, a reflector 6e is provided on the entire surface near the back surface portion 6a of the storage housing 6. The reflecting plate 6e is formed of a plate-like member made of an appropriate material such as stainless steel or an alloy, and has a glossy white coating (including white printing) on the front surface. This white paint functions as a reflecting surface that reflects light.

  A plurality of light sources 9 are provided on the front side of the reflecting plate 6e. The illustrated light source 9 is an LED, but is not limited thereto, and an appropriate light source such as a neon tube, a flexible substrate having a light emitting unit, or a light guide plate for guiding light from the light emitting unit can be used.

  The light source 9 is connected by a wiring (not shown) and emits light upon receiving power from a power supply (not shown). The reflector 6e, the light source 9, and the wiring are not shown in FIG.

  FIG. 3A is a cross-sectional view showing an AA cut end surface in FIG. 2A, and FIG. 3B is an enlarged cross-sectional view in the vicinity of the groove 21 in this end view.

  As shown in FIG. 3A, the inner surface of the side surface portion 6b of the storage portion 6 is provided with a reflective surface 6f. The reflecting surface 6f is formed by a glossy white paint. The space surrounded by the reflective surface 6f and the reflective plate 6e functions as the light reflecting space 11. Note that the reflective surface 6f and the reflective plate 6e are not limited to white, and can be of any appropriate color. In addition, the reflecting surface 6f and the reflecting plate 6e can be appropriately configured, for example, not only painting but also printing or a reflecting film.

  Therefore, the light emitted from the light source 9 is reflected in various directions in the light reflection space 11 by the reflection surface 6f at the side surface position and the reflection plate 6e at the back surface position. Thereby, the direct light from the light source 9 and the light reflected by the reflecting surface 6f and the reflecting plate 6e are incident on the diffusion plate 5. That is, surface light from various directions is incident on the diffusion plate 5.

  The diffusion plate 5 diffuses and transmits the incident light. Therefore, when the light source 9 emits light, the diffuser plate 5 is visually recognized as white. The light transmitted through the diffusing plate 5 becomes surface light.

  The translucent plate 4 is provided with a groove 21 as a parting line portion on the back side. The groove 21 can have an appropriate shape, but as shown in FIG. 3B, the groove 21 has a trapezoidal shape in the first embodiment. Therefore, an outer edge 21b that is bent from the back surface of the light-transmitting plate 4 and is concave, and a bottom edge 21a that is bent at the deepest part that is concave are formed.

  The distance between the outer edges 21b and 21b serving as the width of the groove 21 is longer than the vertical distance from the outer edge 21b to the bottom edge 21a, which is the depth of the groove 21. In other words, the groove 21 is formed by cutting the light-transmitting plate 4 with a substantially V-shaped blade having an acute angle of 90 degrees and is formed so that the length in the depth direction is longer than the length in the width direction.

  Further, the back surface of the translucent plate 4 is divided into partial translucent portions 41A and 41B by the grooves 21. Light transmission amount adjusting layers 43A and 43B are provided in the partial light transmitting portions 41A and 41B, respectively. The light transmission amount adjusting layers 43A and 43B are formed in the same color, and are formed by white coating (including white printing) in this embodiment. The white paint forming the light transmission amount adjusting layers 43A and 43B has different gradations (English: gradation) and different concentrations. Further, the light transmission amount adjustment layers 43A and 43B are provided so as to extend to the back surface of the groove 21 beyond the partial light transmission portions 41A and 41B. Thereby, the light transmission amount adjustment layers 43 </ b> A and 43 </ b> B are also provided in the groove 21. Note that the light transmission amount adjustment layers 43A and 43B may include only the partial light transmission portions 41A and 41B, and a separate light transmission amount adjustment layer may be provided on the back surface of the groove 21. In this case, the separate light transmission amount adjustment layer may be a gradation white coating, or a white coating with a constant density without gradation. Thus, by providing the light transmission amount adjusting layer also in the groove 21, the groove 21 looks like a color close to the other partial light transmitting portions 41A and 41B.

  The groove 21 may be configured such that the groove 21 is transparent without white coating (white printing). In this case, only the groove 21 is transmitted through a lot of light and appears to shine strongly, and a new beauty can be provided.

  As shown in the front view of FIG. 2A, the groove 21 is formed along the stroke 40 inside the stroke 40 (40A, 40B) representing a character, a figure, or a pattern.

  More specifically, the design light-emitting device 1 of Example 1 includes two strokes 40 (a semi-circular stroke 40A (one stroke) that is convex on the right side and a straight stroke 40B (one stroke) in the vertical direction. The character “D” composed of two strokes) is represented. And the groove | channel 21 is formed so that it may pass through the center position of the width direction of the stroke 40, ie, a midpoint, and it is formed so that it may become the shape similar to the stroke 40. FIG. At the connection point 40C where the strokes 40A and 40B come into contact or intersect, the connection point 21c where the groove 21 also contacts or intersects is provided.

  Further, since the serif font is used in the first embodiment, the groove 21 is continuously provided also in the serif portion 4a. In the vicinity of the end portion of the serif portion 4a, the groove 21 branches into two end grooves 22 at a branch portion 23 (see FIG. 4A), and the end of the end groove 22 is the corner portion 4b of the serif (see FIG. 4 (A)).

4A is an enlarged front view of the upper serif portion 4a shown in FIG. 2A, and FIG. 4B is a cross-sectional view taken along the line BB in FIG. 4A. The figure is shown.
As shown in FIG. 4A, the groove 21 provided in the stroke 40 portion of the translucent plate 4 is formed to have a constant depth and width. The terminal groove 22 branching toward the corner 4b of the serif portion 4a is formed so as to gradually become deeper and wider from the branching portion toward the terminal, forming a divergent shape. That is, the bottom edge 22a of the terminal groove 22 does not change in width toward the corner 4b, and the groove gradually increases from the depth D1 on the branching portion 23 side (see FIG. 4B) to the depth D2 on the corner side. It will become deeper. Further, the outer edge 22b of the termination groove 22 is formed so as to gradually increase from the width W1 on the branching portion 23 side (see FIG. 4A) toward the width W2 on the corner portion 4b side.

  5A is an exploded front view of the light transmission amount adjusting layer 43 (43A to 43E) provided on the back surface of the light transmitting plate 4, and FIG. 5B is a light transmission amount adjusting layer 43 (43A). To 43E).

  As shown in FIG. 5 (A), the light transmission amount adjustment layers 43A to 43E are individually gradationed. In the example shown in the drawing, the light transmission amount adjustment layer 43A has a horizontal gradation so that the right side is dark (dark D) and the left side is bright (bright L). Contrary to the light transmission amount adjustment layer 43A, the light transmission amount adjustment layer 43B has a horizontal gradation so that the right side is bright (bright L) and the left side is dark (dark D). Similarly to the light transmission amount adjustment layer 43B, the light transmission amount adjustment layer 43C is provided with a gradation in the horizontal direction so that the right side is bright (bright L) and the left side is dark (dark D). The light transmission amount adjustment layers 43D and 43E are provided with a horizontal gradation so that the right side is bright (bright L) and the left side is dark (dark D), similar to the light transmission amount adjustment layer 43C.

  These gradations are realized by adjusting the shade of the coating amount of the white paint with halftone dots. In FIG. 5, the shading is displayed by halftone dots, but the angles and sizes of the halftone dots are easy to see for the drawing and are different from those actually printed.

  The gradation direction and density of each of the light transmission amount adjusting layers 43A to 43E are appropriately set so that the difference in brightness is as large as possible with the groove 21 and the terminal groove 22 (see FIG. 4A) serving as boundary lines interposed therebetween. Has been. That is, the light transmission amount adjustment layers 43A to 43E adjacent to each other with the groove 21 and the termination groove 22 serving as the boundary line portion function as the first partial light transmission portion and the second partial light transmission portion.

  In addition, the gradation density of each light transmission amount adjustment layer 43A to 43E is adjusted so that the darkest part is about 75% or less, with 100% being filled and 0% being not filled. It is more preferable to adjust so that the darkest (dark) portion is about 65% or less.

  With the above-described designable light-emitting device 1, any character, figure, figure, rich in three-dimensional appearance that can be seen as if the translucent plate 4, which should be flat, is three-dimensionally processed into a mountain shape (convex shape) or a valley shape (concave shape). A pattern can be provided.

  That is, as shown in the photograph of FIG. 6A, the design light emitting device 1 before light emission of the light source 9 is provided with the light transmission amount adjusting layers 43A and 43B on the back surface (back surface) of the flat light transmitting plate 4. It seems that the three-dimensional effect is poor in a state where it is well understood. On the other hand, in the design light emitting device 1 in which the light source 9 emits light and the surface of the translucent plate 4 becomes the light emitting surface, the flat translucent plate 4 has a valley as shown in the photograph of FIG. It looks three-dimensional as if it was three-dimensionally processed into a mold or mountain shape.

  The light from the light source 9 is reflected by the reflecting plate 6e and the reflecting surface 6f, and the reflected light and the direct light are diffused by the diffusion plate 5 to become surface light. The light source 9, the reflection plate 6e, the reflection surface 6f, and the diffusion plate 5 function as a light irradiation unit that irradiates surface light. The surface light from this light irradiation part is transmitted through the light transmitting plate 4 in the thickness direction. At that time, the light transmission amount adjusting layers 43 </ b> A to 43 </ b> E adjust the amount of light transmitted by the part, and the flat light-transmitting plate 4 is viewed three-dimensionally by a person.

  The translucent plate 4 is formed thick, and the light transmission amount adjustment layers 43A to 43E change the light transmission amount with gradation. For this reason, the translucent plate 4 has a three-dimensional effect such that the thickness of the translucent plate 4 is concave from the front to the back (the side edges of the stroke are convex and the center line is concave), or the translucent It is recognized by a person with a three-dimensional feeling that is convex from the back to the front by the thickness of the plate 4 (the side edge of the stroke is concave and the center line is convex).

  Since the groove 21 and the terminal groove 22 are provided at the boundary portions of the light transmission amount adjusting layers 43A to 43E, the boundary portions can be clearly seen and the stereoscopic effect can be amplified.

  Moreover, since the design light-emitting device 1 has the light transmission amount adjusting layers 43A to 43E or similar white coating applied to the groove 21 and the terminal groove 22, only the groove 21 and the terminal groove 22 shine brightly. It is possible to provide a beautiful appearance without any discomfort.

  Moreover, since the design light-emitting device 1 is surface light by reflection, diffusion, or the like when light is incident on the light-transmitting plate 4, the gradation by the light transmission amount adjustment layers 43 </ b> A to 43 </ b> E can be displayed beautifully. Yes, you can make sure it looks three-dimensional.

  Further, since the end groove 22 is carved deeply and broadly from the bifurcated portion toward the end, the stereoscopic effect can be made clearer.

  In this way, the design light-emitting device 1 rich in stereoscopic effect can give an unprecedented appearance, and can be provided as a design light-emitting device 1 with a high-class feeling.

  The designable light emitting device 1 may be configured not to include the locking projection 6d. In this case, the design light-emitting device 1 makes the size to the edge of the upper surface of the side surface portion 6b the same as the sizes of the translucent plate 4 and the diffusion plate 5, and the translucent plate 4 and the diffusion plate 5 on the side surface portion 6b. It is good to form in the shape which gets on. Even in this case, the same effect can be obtained.

  FIG. 7 is an explanatory view illustrating the designable light emitting device 101 according to the second embodiment. As shown in the front view of FIG. 7A, this design light emitting device 101 is provided with an emphasis groove 126 on the front surface (surface opposite to the groove 21 and the terminal groove 22) of the light transmitting plate 4 in the first embodiment. The light transmitting plate 104 is provided with a color filter 108 (see FIG. 7B) between the light transmitting plate 104 and the diffusing plate 5, and the other configuration is the same as that of the first embodiment. For this reason, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted.

  The color filter 108 is a colored transparent filter in the same shape as the translucent plate 104 or the diffusion plate 5 and thinner than these. The color is an appropriate color such as beige, blue, yellow, orange, green, purple, etc., and is one color with the same density without gradation.

  The emphasis groove 126 is provided along the edge with a certain distance from the edge of the translucent plate 104. In other words, two emphasis grooves 126 are provided at the end along the stroke 140 (140A, 140B) constituting the translucent plate 104.

  As shown in the sectional view of the CC cut end surface of FIG. 7A shown in FIG. 7B, the emphasis groove 126 is formed in the edge portions 2b of the casings 2 and 3 in a state where the design light emitting device 101 is completed. The outer edge of the emphasis groove 126 is formed at a position where the outer edge of the emphasis groove 126 is coincident with or close to the edge 3b. Thereby, the groove | channel which falls straight into the emphasis groove | channel 126 from the edge side of the edge parts 2b and 3b is formed.

  With the above configuration, it is possible to provide the three-dimensional design light emitting device 1 having the same effect as that of the first embodiment and further three-dimensional than the first embodiment. In particular, when the gradation of the light transmission amount adjustment layer 43 provided on the front surface or the back surface of the translucent plate 104 is adjusted so that it looks convex from the back to the front (the side edge of the stroke is concave and the center line is convex), The emphasis groove 126 emphasizes the effect of making the side edge of the stroke appear to be recessed (recessed), and a very three-dimensional design light emitting device 101 can be provided.

  In addition, the design light emitting device 101 that emits light in an arbitrary color can be provided by the color filter 108.

  Note that the color filter 108 may not be provided. In this case, it is possible to emit light in the color of the light source 9 (for example, white), and in particular, a design property that emphasizes the stereoscopic effect that appears convex from the back to the front (the side edge of the stroke is concave and the center line is convex). The light emitting device 101 can be provided.

  Further, the color filter 108 may be provided between the light transmitting plate 4 and the diffusion plate 5 of the first embodiment. In this case, it is possible to provide the designable light-emitting device 1 that emits light of any color in the type of Example 1.

  FIG. 8A is a cross-sectional view showing a longitudinal end face of a design light emitting device 201 called Lumileta (registered trademark) using a special light emitting resin.

  This design light-emitting device 201 is different from the design light-emitting device 101 of Example 2 only in the type of light source, and the other configurations are the same as those of the design light-emitting device 101 of Example 2. For this reason, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted.

  Near the bottoms of the casings 2 and 3, a back plate 206 a that covers substantially the entire back surface is provided. A substrate 215 is provided on the front side of the back plate 206a, and a light source 216 is provided on the substrate 215.

  In the space covered with the front side of the substrate 215 and the casings 2 and 3, a special light-emitting resin 218 that fills the entire space is provided. The special light emitting resin 218 is acrylic containing an emulsifier or a diffusing agent, and functions as a diffusing member that diffuses light. The light source 216 and the special light emitting resin 218 function as a light irradiation unit that irradiates surface light.

  With this configuration, light emitted from the light source 216 is diffused by the special light emitting resin 218 to become surface light, and enters the color filter 108 and the light transmitting plate 4 as surface light.

  FIG. 8B shows a front view of the case where the Gothic character “D” is created by the designable light emitting device 201. Since the Gothic body does not have a serif portion, a termination groove 22 is provided in which the groove becomes deeper and wider toward the corner 4b.

  FIG. 8C shows a front view when a star-shaped figure is created by the designable light emitting device 201. In this case, it is a figure in which five strokes 240 are radially arranged from the center, and this stroke 240 tapers toward the tip to form an acute angle. Therefore, the groove 21 is provided along the stroke 240, and the end groove 22 that is deeper and wider toward the corner portion 4 b is provided in an adjacent portion of the stroke 240 and the stroke 240. The groove 21 and the termination groove 22 may be appropriately configured, for example, the termination groove 22 is configured as the groove 21, and the groove 21 is configured as the termination groove 22, or the termination groove 22 is configured as the termination groove 22.

  With the above configuration, the same effect as that of the first embodiment can be obtained, and light can be emitted in an arbitrary color by the color filter 108 and can be displayed in three dimensions. Further, except for the color filter 108, the same effect as that of the first embodiment can be obtained. When the emphasis groove 126 as in the second embodiment is provided, the same effect as that of the second embodiment can be obtained.

  In the third embodiment, a Gothic font or a star-shaped graphic is used. However, a serif font as shown in the first embodiment may be used. Conversely, in Examples 1 and 2, the Gothic body may form a star shape.

  FIG. 9 is a cross-sectional view illustrating a longitudinal end face of the design light-emitting device 301 in which the casings 2 and 3 are omitted from the design light-emitting device 201 described in the third embodiment. In the design light emitting device 301, the color filter 108 is also omitted, and the translucent plate 4 is directly fixed to the upper surface (the surface opposite to the light source 216) of the special light emitting resin 218 by adhesion. The special light-emitting resin 218 and the translucent plate 4 are configured to have the same shape and size as viewed from the viewing direction (upper side in the drawing). Since other configurations are the same as those of the third embodiment, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  The designable light emitting device 301 of the fourth embodiment can also obtain the same effects as the first embodiment. Furthermore, since the design light-emitting device 301 has the side surface made of the special light-emitting resin 218, surface light can also be emitted from the side surface. The designable light emitting device 301 may include the same color filter 108 as that of the third embodiment between the special light emitting resin 218 and the light transmitting plate 4. In this case, the same effect as in the third embodiment can be obtained.

  FIG. 10 is an exploded perspective view of the designable light-emitting device 401 of Example 5. The design light-emitting device 401 is configured by a casing 402, a translucent plate 404, a diffusion plate 405, and a light source 409 that are stacked in this order from the top.

  The casing 402 is a metal plate that does not transmit light, and has a design hole 402a that represents a character, pattern, or figure. The design hole 402a illustrated in the figure is formed in the shape of four letters of the alphabet “DAIK”.

  Since the translucent plate 404 and the diffusing plate 405 have the same configurations as the translucent plate 4 and the diffusing plate 5 of the first embodiment, detailed description thereof is omitted. The diffusion plate 405 is a thick block-shaped diffusion member.

  The light source 409 is an appropriate surface light source that illuminates the entire surface of the design hole 402a from the back surface (lower side in the drawing) to the entire surface (upper side in the drawing), such as a light emitter (LED or the like) on the side surface of the plate-shaped light guide plate Consists of.

Other configurations are the same as those in the first embodiment, such as the groove 21, the termination groove 22, the stroke 40, and the light transmission amount adjusting layer 43 described in the first embodiment. Therefore, detailed description thereof is omitted. To do.
With the above configuration, the same effect as that of the first embodiment can be obtained even in the case of a cut character.

  FIG. 11 is an explanatory diagram of another example, FIG. 11A is a front view of the design light emitting device 501 of Example 6, and FIG. 11B is a diagram of the design light emitting device 501 of Example 6. FIG. 11A is an end view taken along arrow AA in FIG.

  As shown in FIG. 11A, the design light emitting device 501 is disposed at a position protruding from the metallic casing 502 that blocks light and a design hole 502a provided in the casing 502 to the front side. A translucent plate 504 is provided. The side surface of the translucent plate 504 is appropriately coated such as silver metallic coating.

  As shown in FIG. 11B, a diffusion plate 505a having the same shape as that of the light transmission plate 504 is provided on the rear surface side of the light transmission plate 504, and diffusion having a larger area than the diffusion plate 505a is provided on the rear surface side. A plate 505b is provided. Note that the side surface of the diffusion plate 505a may be the same paint as the side surface of the translucent plate 504.

  A light guide plate 509b is provided on a further rear surface side of the diffusion plate 505b over a larger area than the entire light transmission plate 504. In the vicinity of one end side of the light guide plate 509b, a light emitter 509a such as an LED is disposed so as to pass light into the light guide plate 509b.

  Other configurations are the same as those in the first embodiment, such as the groove 21, the termination groove 22, the stroke 40, and the light transmission amount adjusting layer 43 described in the first embodiment. Therefore, detailed description thereof is omitted. To do.

  With the above configuration, the design light-emitting device 501 is irradiated with light emitted from the light emitter 509a as surface light from the back surface to the light-transmitting plate 504 and the light guide plates 509a and 509b by the light guide plate 509b. The same effects as those of the first embodiment can be obtained.

FIG. 11C is an end view taken along the line AA of FIG. 11A of the designable light emitting device 601 of Example 7. A front view of the designable light emitting device 601 is the same as FIG.
The design light-emitting device 601 has a casing 602 formed of a stone material. The casing 602 is formed with a design hole 602a representing a character, a figure, or a pattern penetrating from the front to the back.

  In the design hole 602a, a translucent plate 604, a diffusion plate 605a, and a translucent plate 607 are provided in order from the front. The translucent plate 604, the diffuser plate 605a, and the translucent plate 607 have the same shape as the design hole 602a, and the translucent plate 604 projects from the casing 602 to the front side.

  White marble-like coating 690 is provided on the side surfaces of the light-transmitting plate 604, the diffusion plate 605 a, and the light-transmitting plate 607 and around the design hole 602 a on the back surface of the casing 602. Note that there are gaps between the translucent plate 604, the diffuser plate 605a, and the translucent plate 607 and the white marble-like paint 690, and between the back surface of the casing 602 and the white marble-like paint 690 for easy understanding. Although it is shown in the figure, they are actually in contact with no gap.

  On the back surface of the casing 602, a diffusion plate 605 b larger than at least the design hole 602 a is screwed with a pan screw 691.

  A light source 692 for irradiating surface light toward the front side is provided on the back surface of the diffusion plate 605b.

Other configurations are the same as those in the first embodiment, such as the groove 21, the termination groove 22, the stroke 40, and the light transmission amount adjusting layer 43 described in the first embodiment. Therefore, detailed description thereof is omitted. To do.
With the above configuration, the designable light emitting device 601 can achieve the same effects as those of the first embodiment.

  FIG. 11D is a front view of the translucent plate 704 of the eighth embodiment. The translucent plate 704 of the eighth embodiment is different from the previous embodiments in that a plurality of colors are used for gradation.

That is, in Example 8, the light transmission amount adjustment layers 743 (743A to 743M) provided on the light transmission plate 704 are arranged in two colors.
That is, the light transmission amount adjustment layers 743A, 743B, 743F, 743G, 743K, 743L, and 743M are painted in gradation with the first color, and the remaining light transmission amount adjustment layers 743C, 743D, 743E, 743H, 743I, and 743J are The second color is painted in gradation. This color arrangement is configured such that the first color and the second color are alternately switched according to the separation of the light transmission amount adjustment layer 743 in the stroke direction.

  The first color and the second color can be, for example, a light color with the first color and a dark color with a low brightness and the second color similar to the first color. As a result, the first color portion is visually recognized by a person as if it is lifted toward the front, and the second color portion is visually recognized by a person as if it is recessed.

  Since the groove 721 and the termination groove 722 that are the boundary between the layers of the light transmission amount adjustment layer 743 and the gradation density adjustment in each color are the same as those in the first embodiment, detailed description thereof is omitted. Moreover, since what is necessary is just to use any one of the Examples 1-8 so far as a casing, a diffusion plate, and a light source, the detailed description is abbreviate | omitted.

With the above configuration, the design light-emitting device having the light-transmitting plate 704 of Example 8 can obtain the same effects as those of Examples 1 to 7 and can be made to appear three-dimensionally.
Also, if the gradation density adjustment for the first and second colors is changed to a mountain shape (convex shape) and a valley shape (concave shape), the three-dimensional effect due to the gradation and the three-dimensional effect due to the color combination are very three-dimensional. Can be shown.

  Note that this synergistic effect can be maximized by setting the first color and the second color having a higher brightness to a mountain shape (convex shape) and a lower brightness value to a valley shape (recess shape). The Yamagata and Valley types may be reversed. Even in the opposite case, a three-dimensional visual effect can be obtained in which the unevenness is switched between the first color portion and the second color portion.

  Although the present invention has been described based on the eight examples, the present invention is not limited to the configuration of the above-described embodiment, and many embodiments can be obtained.

  For example, an exploded front view of the light transmission amount adjusting layer 43 (43A to 43E) provided on the back surface of the light transmitting plate 4 in FIG. 12A, and the light transmission amount adjusting layer 43 (43A to 43E) in FIG. ), The gradation shown in the first embodiment can be configured so that the gradation density (bright L, middle M, dark D) and direction are different.

  In addition to this, the light transmission amount adjustment layer 43 may be configured such that the light transmission amounts of the plurality of light transmission amount adjustment layers 43 at the boundary portions (adjacent portions of the groove 21 and the termination groove 22) are as different as possible. If the gradation direction is different, the light transmission amount is changed by changing the coating density, etc., the gradation in the same direction is adjacent, the gradation gradient of the gradation (light transmission amount gradient from the bright part to the dark part) is different For example, an appropriate configuration can be adopted. Even in such a case, the same effects as those of the above-described embodiments can be obtained.

  In addition, the translucent plate 4 and the light transmission amount adjusting layer 43 are provided so that the front surface representing characters, figures, and patterns can be seen three-dimensionally with the light emitting surface as a light-emitting surface. The translucent plate 4 and the light transmission amount adjusting layer 43 may be provided on the side surface. In this case, for example, the light transmitting plate 4 having the light transmission amount adjusting layer 43 may be provided on the side surface of the special light emitting resin 218 using LumiLetter (registered trademark) described in the third embodiment. By doing in this way, it can be made to light-emit so that a side can be seen three-dimensionally.

  In addition, the light transmission amount adjusting layer 43 is provided on the back side of the translucent plate 4. However, the configuration is not limited thereto, and the light transmission amount adjusting layer 43 may be provided on the front side of the translucent plate 4. 4 may be provided on the front side. Even if comprised in this way, it can show in three dimensions like each Example mentioned above. In this case, in order to protect the light transmission amount adjusting layer 43, it is necessary to use an appropriate structure, such as by further applying a transparent paint on the front side to protect it, or arranging a transparent protective plate on the front side. Can do.

  The light transmission amount adjusting layer 43 is coated with an appropriate paint such as white, but is not limited to this, and is an appropriate layer that changes the light transmission amount to gradation, such as uneven processing such as sandblasting. be able to.

  Further, the groove 21 and the terminal groove 22 are not limited to V-shaped grooves (the tip is a flat trapezoidal groove), but may be appropriate grooves such as a U-shaped groove or a groove having another shape. Also in this case, it is possible to provide the designable light-emitting devices 1, 101, and 201 having a three-dimensional effect as in the above-described embodiments.

  Also, the groove 21 and the terminal groove 22 are not provided, and it is possible to perform painting that draws a boundary line at the same position as the groove 21 and the terminal groove 22. In this case, the coating color is preferably the same color as the light transmission amount adjusting layer 43, and the coating concentration may be set to an appropriate concentration. Thereby, although it is a little inferior when providing the groove | channel 21 and the termination | terminus groove | channel 22, the cheap and three-dimensional design light-emitting device 1,101,201 which reduced the preparation cost of a groove | channel can be provided.

  Alternatively, the light transmission amount adjusting layer 43 may be adjacent to the boundary portion without a gap without providing the groove 21 and the terminal groove 22 or the coating of the changing boundary line at all. In this case, the design light-emitting devices 1, 101, and 201 having a certain degree of stereoscopic effect can be provided although the stereoscopic effect becomes poor when approaching.

  In addition, the shape of the translucent plate 4 itself is the design shape so that the entire translucent plate 4 forms a design such as characters, figures, and patterns. However, the present invention is not limited to this, and the large translucent plate 4 transmits light. A design (design by stroke) can be drawn by the amount adjusting layer 43, the groove 21, and the terminal groove 22. In this case, if a suitable light such as sunlight or illumination light is irradiated, a design product in which the design (design part) drawn by the light transmission amount adjusting layer 43 and the groove 21 and the terminal groove 22 can be viewed in three dimensions is provided. can do.

  The groove 21 is provided at the midpoint of the stroke as much as possible. However, the present invention is not limited to this, and the groove 21 may be provided at an arbitrary position within the width of the stroke. In this case, it is possible to provide the three-dimensional design light emitting device 1, 101, 201 in which the most convex or most concave portion is located at a position different from the midpoint of the stroke.

  The present invention can be used for a store name, a lighting sign for a logo, a lighting advertisement, and the like, and can be used for an appropriate design lighting product in which a design drawn by a stroke is visually recognized.

DESCRIPTION OF SYMBOLS 1,101,201,301,401,501,601 ... Design light-emitting device 2,3,402,502,602 ... Case 4,104 ... Transparent plate 9 ... Light source 21 ... Groove 22 ... Terminal groove 23 ... Branching part 40 (40A, 40B), 140, 240 ... stroke 41A, 41B ... partial light transmission part 43 (43A-43E) ... light transmission amount adjustment layer

Claims (8)

A translucent translucent member having a design portion representing a character, figure, or pattern drawn by a stroke;
A light source for irradiating light to the translucent member,
The translucent member is
The stroke has a first partial light transmitting portion and a second partial light transparent portion that are at least divided into two in the width direction,
The first partial light transmissive part and the second partial light transmissive part are each provided with a light transmission amount adjustment layer that changes the light transmission amount by gradation according to the part,
The light transmission amount adjustment layer of the first partial light transmission portion and the light transmission amount adjustment layer of the second partial light transmission portion divide the first partial light transmission portion and the second partial light transmission portion. A design light-emitting device configured to have a portion in which the amount of light transmission in the vicinity of the portion is different . The design light-emitting device according to claim 1, wherein the first partial light- transmitting portion and the second partial light- transmitting portion have different gradation directions or densities . A dividing line portion is provided at a boundary portion dividing the first partial light transmitting portion and the second partial light transmitting portion,
The design light emitting device according to claim 2, wherein the parting line portion is a groove provided in the translucent member. The design light emitting device according to claim 3, wherein the groove is provided with a divergent shape portion in which at least one of a depth or a width becomes divergent toward an end portion or a corner portion of the stroke. 5. The design light emitting device according to claim 3, wherein the parting line part is bifurcated in the vicinity of an end part of the stroke, and a tip that is divided into both corners of the end part abuts. The design light emitting device according to claim 3, 4 or 5, wherein the parting line part has a branch part that branches toward a corner of the bent part at a bent part where the stroke is bent. The design light emission according to any one of claims 1 to 6, wherein a gradation density of the light transmission amount adjusting layer is adjusted so that a darkest portion is 75% or less. apparatus. A light-transmitting member that transmits light and forms a stroke-shaped light-emitting surface,
The stroke has a first partial light transmitting portion and a second partial light transparent portion that are at least divided into two in the width direction,
The first partial light transmissive part and the second partial light transmissive part are each provided with a light transmission amount adjustment layer that changes the light transmission amount by gradation according to the part,
The light transmission amount adjustment layer of the first partial light transmission portion and the light transmission amount adjustment layer of the second partial light transmission portion divide the first partial light transmission portion and the second partial light transmission portion. The translucent member comprised so that it might have a part from which the mutual light transmission amount in a part vicinity differs .

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