Device for selected lighting of surface

FIELD: lighting.

SUBSTANCE: device for selected lighting of a surface is designed to identify images or their part in interiors of premises, in advertising, in exterior of buildings. The device for selected lighting of a surface comprises a source/sources of light, directed at an end/ends of a light conducting layer, and from three layers arranged in the following sequence: the first layer - the base, the second layer - the light conducting one, the third - the light scattering layer with an image. On the upper surface of the light conducting layer there are grooves that focus and refract rays from the source/sources of light. The base is made as non-transparent, with a light-diffusing, preferably white, coating of the upper side. On the upper surface of the light-conducting layer, grooves may be applied by laser, where the light is focused from the source of light and is directed to the dedicated section.

EFFECT: invention provides for even diffusion of light.

7 cl, 3 dwg

 

The device selected illumination of the surface is intended for interior and exterior of buildings, and can also be used for promotional and informational purposes.

The selection of specific locations on the surfaces is carried out by means of various techniques, such as more intense staining, surface coating varnish, run lights, and so on

Known to block the illumination image and the device that uses this image (see CN 20112476792 U 20111125, non priority or related documents: JP 20100269881 20101203, also published as: EP 2461091 (A2) EP 2461091 (A3) US 2012140447 (A1), JP 2012119247 (A) CN 102486277 (A), F21S 8/00; F21V 13/00; G02F 1/13357; F21Y 101/02). Unit backlight image contains, including the light source (2) and a light guide plate (1), which directs light from the light source (2) in the liquid crystal panel (6). Light emitted in the plane of the radiation (1b) of the light guide plate (1), is directed opposite to the liquid crystal panel (6) in the direction of the liquid crystal panel (6). The area of the light emission plane (1b) of the light guide plate (1) is less than the effective display area of liquid crystal panel (6). Given the form (101) is designed to diffusion or scattering of light, which is formed on the side perpendicular to the plane of light emission (1b) is C light guide plate (1), and/or at the part near the side of the light emission plane (1b).

The disadvantage of this solution is the presence in the liquid crystal device wafer, which significantly increases the cost of the illuminated surfaces.

From the description of the patent (see (19) RU (11) 91716, (13) U1, (51) IPC SS 27/12, (2006.01), (54) multi-layer COMPOSITION) known multi-layer composition, which refers to translucent, mostly decorative multi-layer compositions of the glass. Multi-layer composition includes glass, between which is placed at least one bonding layer and single layer film and/or fabric, which is the carrier of the image caused printing method. The surface of each glass embossed to create three-dimensional images, the shape and contours of the relief surfaces of glass match each other and the image on the film and/or fabric. Embossed glass surface formed concave or convex or plane-parallel multilevel sites or their combination and has a variable thickness. Each layer of the film and/or fabric consists of separate pieces. The image can be also applied to the relief surface of the glass.

The disadvantage of this technical solution is that the claimed relief image complex in the manufacture, as to thetsa create a concave or convex or plane-parallel multilevel sites or their combinations.

It is known device for the formation of images (see patent RU (11), 105507 (13), U1 (51), IPC G09F 19/00, (2006.01) (54) device for the formation of the IMAGE). The device forming the image contains media information printed on its surface the image storage medium is executed in the form of a metallic sheet, the surface of which is coated with the image in the form of through open holes arbitrary configuration with a protruding element, which is made to rotate and/or tilt under any set of positive and/or negative angle relative to the sheet metal surface. The device further comprises at least one light source configured to deliver light to the image.

The disadvantage of this technical solution is that to obtain a technical result required the change of the surface topography of the metal sheet.

The technical result of the claimed solution - the creation of additional illumination of the image when using the design, made from locally available materials, processed using known techniques. Part of the above device includes light sources arranged along the perimeter of the light guide layer that acts as a light guide, and a set of layers in the following sequence is eljnosti: a base layer with a reflective upper surface, transmitting layer with grooves on the upper surface, light-diffusing layer with the image on the top surface.

Function base layer is reflected from the top surface of the base of the rays that fall from above the light guide and the light-scattering layer.

On the light guide layer, which may be made of plastic or glass (most often made of acrylic glass), laser marked.

The function of this layer is to deliver with minimal loss of light from the source/s of light to the grooves engraved on the surface of the plate, so that they, in turn, has been focusing delivered to them the light and redirected it into the light diffusing plate.

Engraving can be performed either on the entire surface or only on the part of the surface layer, which is located under the surface area, require greater illumination. The recesses in the glass act as a lens, focusing the rays and changing the direction of their propagation.

Function light-diffusing layer on the upper surface of which is coated with the image - to evenly diffuse the light, forwarded to him by the recesses light guide plate.

Description of the proposed technical solution

The device selected illumination surface consists of layers of Seville is in the following order: base, light guide layer, a light-diffusing layer with printed image. Along the perimeter of the light guide layer has a light source, light from which is directed perpendicular to the end/the end surfaces of this layer.

On top of the light-diffusing layer with the image can be installed protective layer.

The base of the device is made of an opaque layer, the upper side of which has a light-diffusing, preferably white, the floor. The base can be made of PVC, MDF, HDF.

Transmitting layer is made of a homogeneous transparent light guide material, for example polymetylmetacrylate (emission spectra obtained for pure plastic, often called acrylic glass. On one of the horizontal surfaces of this layer, mainly the top, by means of laser engraving is made cavities, which can reside either on the entire surface, or to occupy only a part/parts. The recesses can be made in the form of a regular matrix.

The step of placing holes and their sizes are chosen empirically depending on the properties of the used acrylic glass plates, forming layers and the source/light sources. The highest step and the dimensions of the grooves are selected so that the upper surface of the light-diffusing layer was not visible shadows in InterMedia is located between the recesses.

Light-diffusing layer with the image on the top surface is made of light-diffusing material, such as acrylic glass, and the light transmittance plate may be approximately 30%.

The protective layer is designed to protect images. Preferably, this layer had minimum absorption coefficient of the light flux.

1 shows a device selected illumination surface, where 1 - base; 2 - transmitting layer; 3 - light diffusing layer with the image; 4 - layer protection; 5 - light source; 6 - cavities on the surface of the light guide layer. Figure 2 - schematic of the propagation of the light wave in the device selected illumination surface. Figure 3 is an image diagram showing the relation of light and the distance from the light source.

Light waves in the light guide layer, which optical fibers extend from one or more light sources located on the ends of the plates of this layer to the upper horizontal surface of this layer and the upper layer of the base. On the upper horizontal surface of the light waves are in depressions made by the laser focus in these recesses, change their direction and reflected on the lower surface of the plate with the image, the treatment tip can achiwa his bottom.

An example implementation of the device selected backlight surface:

the basis of PVC; transmitting layer plate of acrylic glass thickness of 3 mm; a light-diffusing layer plate with the image of acrylic frosted glass with a thickness of 2 mm; a protective layer plate glass acrylic thickness 1.5 mm; light source - led light strip type SMD 3528120 LED/m

1 Device selected illumination surface, having in its composition: transmitting layer, the layer carrying the image, and the source/light sources directed/s at the end/ends of the light guide layer, wherein the device is selected illumination surface has three layers, arranged in the following sequence: the first layer - the base, the second light, the third light-diffusing layer with the image on the upper surface of the light guide layer is made deeper, focusing and refracting the rays from the source/light sources, and the base is made of an opaque, light-diffusing, preferably white coating the top side.

2. The device according to claim 1, characterized in that the indentations caused by the laser.

3. The device according to claim 1, characterized in that the light source is an led strip.

4. The device according to claim 1, characterized in that the base is made of either PVC or MDF, any of the HDF, the upper side of which has a white light-diffusing coating.

5. The device according to claim 1, characterized in that the light diffusing plate is made of a homogeneous white material with a light transmittance of about 30%.

6. The device according to claim 1, characterized in that the plate with the image made of acrylic glass.

7. The device according to claim 1, characterized in that it further has a layer on top to protect the image.



 

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