KR100888563B1 - Refrection plate having high refrection-rate for high ceiling - Google Patents

Abstract

A reflection late having high reflection-rate for high ceiling is provided to prevent light loss by using a unit reflection plate having a creation curvature. A high ceiling reflector comprises a plurality of unit reflectors, and a unit reflector has a convex surface. The unit reflector is formed with a base reflection plate(A1) including PET(Poly Ethylene Terephthalate), nonpolar thermoplastic primer layer(2), metal deposition layer(3), a thermoplastic primer layer, a hot melt resin paste layer(4), and an aluminum plate(5). A plurality of unit reflectors is fixed on a horizontal supporting plate, and a columnar fixture is formed in the rear side of each unit reflector. The columnar fixture is fixed to the horizontal supporting plate with adhesive.

Description

REFRECTION PLATE HAVING HIGH REFRECTION-RATE FOR HIGH CEILING}

The present invention relates to a high ceiling reflector having a high reflectance, specifically, a reflector capable of efficiently reflecting light while maintaining excellent reflectance and minimizing light loss due to light absorption and diffuse reflection of light. It relates to a high ceiling reflector having an integrated high reflectivity of a unitary reflection combination of a plurality of unit convex reflector having a constant curvature in which a metal deposition laminating film having a high reflecting surface is laminated on a thin film aluminum plate.

In order to maintain the reflectance over a long period of time, first, the reflectivity of the metal material forming the mirror surface of the reflective surface should be excellent, the mirror surface should be smooth without fine irregularities, and the laminated layers of the reflecting plates are strongly adhered to each other to prevent moisture and gas permeation. It should be prevented from deterioration of mirror surface or corrosion by oxidation, preventing cracks due to deterioration by UV irradiation of surface film, preventing alteration of laminated material, and homogeneous deposition by eliminating the difference in deposition density according to the deposition angle of metal ion during metal deposition. Highly reflective reflectors can be expected only when density is maintained.

Generally, the reflector is classified. There is a specular reflector with a reflecting surface, such as a mirror, which reflects the same specular reflection of the incident angle and the reflecting angle. The reflector does not have a constant incident angle and reflection angle and the reflection is distributed in various directions. .

In addition, according to the material of the reflector plate, the silver film reflector plate has a specular reflector plate that reflects approximately 95% or more of the reflectivity using a reflector plate that adheres the deposited film to a metal plate. There is a specular reflector having an average reflectance of 85% using a reflecting surface obtained by adhering a film to a metal sheet.

There is a high gloss polished and anodized aluminum specular reflector, and there is an enhanced aluminum specular reflector finished by electropolishing and special coating.

In addition, there are reflecting plates of paints and coating products, and these reflecting plates were applied for protection and decoration by painting in the early stages, but efforts to increase the reflectance with white coatings become more concerned with reflectance and illuminance as energy problems arise. This has been tried.

In Korea, the technology of the paint field has been developed for a long time than the technology of other reflecting plates, and the material applied from the early days in the electric lighting field is paint, and is still used as a basic material for the film formation.

The use of such a material is to obtain a reflective surface through a background pretreatment, undercoat, butt, intermediate, top coat, and polishing process through various pretreatment processes on the metal surface.

In addition, the reflector plate obtained by powder coating is a powder of 100% of non-volatile matter without using organic solvent and water by spraying or spraying iron plate by electrospray or flow dipping method. It is a high reflectivity reflector that melts, flows, and cures to form a coating film, which can be manufactured at low cost, but has a disadvantage in that reflectance due to evasive elements and environmental stress is reduced.

In the above, aluminum deposition film reflector or high gloss polishing and anodized aluminum reflector tend to have low reflectivity. Especially anodized aluminum reflector requires high cost in the manufacturing process, and aluminum reflector finished with electrolytic polishing and special coating has initial reflectance. Is excellent, but the processing cost is high and the surface is easily damaged, so the excellent reflectance cannot be maintained continuously.

In addition, the silver-deposited film reflector described above has an excellent reflectance of 95% to 98% reflectance, but excellent adhesion and adhesion between the laminated layers of the silver-deposited film must be maintained for a long time, and shear force generated between heterogeneous layers due to the difference in thermal expansion coefficient. If it is not configured to absorb gaps and prevent gaps between layers, the excellent reflectance at the initial stage cannot be retained for a long time.

In addition, the reflection plate of the paint, powder coating can be manufactured at a low cost, but the reflectance is not good.

In order to obtain a high ceiling reflector having a high reflectance pursued by the present invention, a condition must be preceded by the above-described specular reflector and have to maintain such reflectivity continuously. In addition, loss of light reflected from the reflector is The base plate of the reflector should be designed under the condition that the density of light irradiated by the reflection should be uniform in the area irradiated by the reflection.

At present, the reflector composed of the above-described reflector as a base material is an angled reflector having a horizontal plane such as a fluorescent lamp reflector designed using various reflector base materials that we can commonly see, and an inclined plane that is symmetrically bilaterally, or concave like various lighting fixtures. In the case of a reflector having a surface or for a high ceiling, a reflector corresponding to a reflector of a street lamp may be considered as the only light. Also, the light (light source) and the reflector are adjacent to each other, and the light reflected from the reflector is irradiated in all directions from the back. This is a reflector that is mixed and irradiated to the required point.

In developed countries with high reflectivity reflector material and parts industry, the development of energy saving, high efficiency and environment-friendly integrated high ceilings and street light lighting systems has been actively expanded, and more and more places are being installed and distributed in Europe and the Americas. High reflectivity reflector lighting system is installed in the public or is widely applied to large squares, gardens and street lamps, and the light emitted from the powerful parallel direct light source at a long distance is irradiated to the reflector system so that it is irradiated to the place where it is needed only by the light by the reflector. Although systems are increasing, there is hardly any reflector system in Korea that searches for the required area only by reflecting light.

More specific examples of the prior art, for example, the "reflective plate of the lamp" is introduced in the Korean Patent Publication (Publication No. 10-2007-0079866). In other words, the surface of the light source is embossed by being installed in front of the direct illuminance reflector and the direct illuminant reflector that are formed on the side of the light source and formed into a flat plate. Although it is related to the reflector of the lamp which is composed of a diffuse reflector and does not obtain sufficient illuminance even if the lamp is installed on a high ceiling and does not generate shadows in the light distribution, it is a reflector that is only a function of the above-described general lamp or lighting reflector. Can be.

As another reflector of the prior art, Korean Patent Publication (Publication No. 10-2007-0083132) discloses a reflector about "a street lamp to which a reflector having a diffuse reflection function is applied." In the street lamp with the head lamp which is irradiated with light on the end point of the basin, the reflection of the light of the lamp which is a light source is reflected inside the head lamp. Reflector is installed to reflect light to the spot, and the reflector is a reflector that is arranged in a net form with a number of diffuse reflection grooves in a polygonal form and forms irregularities on the reflecting surface of a normal reflector. Reflector that reflects light by scattering light by scattering the direct reflection of light. It is a reflector that can cause the loss of reflected light as the unevenness is formed on the reflecting surface with the light source inside the climbing shade. It is just a conventional luminaire with a lamp and a reflector adjacent to each other.

The present invention is a reflection plate laminated with a silver deposition film having a reflectance of more than 97% reflectance on an aluminum support plate more specifically, a strong adhesion by the adhesion between the laminated layers of the silver deposition film and thermal expansion coefficient between heterogeneous layers to maintain the initial reflectance continuously The silver evaporation layer is inserted between both primer layers that can buffer the stress caused by the difference, thereby providing excellent airtightness, and forming the unit reflector plate as a base material reflector to prevent penetration of moisture or corrosive gas. This is a ceiling reflector which is assembled by lossless, uniform distribution of light and has unit curvature with constant radius of curvature connected to the plate support plate horizontally and vertically. It is powerful parallel direct light source at long distance (50 ~ 200m) to such ceiling reflector. Has a high reflectance to make it have excellent reflection efficiency It will have the purpose to provide an overhead reflector.

The reflecting plate serving as the basic base material is a non-polar hydrophobic thermoplastic resin primer melt or solution formed on one side of a polyethylene terephthalate film to which 0.5 to 2 wt% of a UV absorber is added to form a primer layer by laminating, and highly reflective metal deposition thereon. A reflective plate manufactured by coating a synthetic resin hot melt adhesive on a silver deposition film on which a non-polar hydrophobic thermoplastic resin primer layer was formed on a metal deposition layer to form a layer, and then adhering to an aluminum plate (thickness 0.3 to 0.8 mm) that has been pretreated. By cutting this, a square of a certain size is obtained, and it is formed into a concave mold having a convex reflecting surface having a constant curvature and a convex mold. High ceiling reflection with high reflectivity designed as a modular module You can get a plate.

The high ceiling reflector having the high reflectivity of the present invention is a metal deposition layer having a high reflectivity, and the base substrate reflector of the unit reflector constituting the high ceiling reflector is extremely excellent in reflectivity and a nonpolar hydrophobic thermoplastic primer layer is strongly used on both sides of the metal deposition layer. It is adhesively bonded and has hydrophobicity and buffering property, so it is excellent in airtightness and watertightness, and it can buffer shear force generated between heterogeneous layers due to the difference in thermal expansion coefficient according to temperature change. By preventing gaps or peeling between layers, it can prevent oxidative corrosion and deterioration due to gas, water penetration, etc., and can preserve the initial reflectance for a long time, and increase durability, and the unit reflector has constant curvature. Can be prevented and the reflected light can be distributed with the same density. It is a high ceiling reflector that can reflect the reflected light efficiently at a certain angle. Unlike the lamp type reflector that is irradiated at the baseball field, golf course, and plaza, it does not require electrical wiring, so it is easy to manage and install. High ceiling reflector for easy operation, efficient saving of light energy, and installation with support for easy change of places where light is required, for efficient use in gardens, plazas, street lamps, outdoor theaters, movie studios, playgrounds, etc. This can be called.

Looking at the components constituting the high reflectance plate (A) of high reflectivity for achieving the object of the present invention,

The base substrate reflector is a reflective plate composed of a laminated layer, and a non-polar hydrophobic thermoplastic resin melter is formed on the lower surface of the polyethylene terephthalate film (hereinafter referred to as PET film) having a reflective surface protective layer added with a UV absorber of 0.5 to 2 wt% (hereinafter referred to as PET film). Or selected from silver, nickel, chromium and titanium, which is laminated with a nonpolar hydrophobic thermoplastic resin primer layer (2) of a thin film formed by laminating or coating with a solution and having excellent glossiness and high reflectivity on the thermoplastic resin primer layer (2). One metal deposition layer 3 is formed, and the above-mentioned thermoplastic resin primer layer 2 is formed under the metal deposition layer, and the thermoplastic resin primer layer 2 is one selected from polyurethane, polyamide, and acryl. A basic hair formed by forming a hot melt resin adhesive layer 4 and laminating an aluminum plate on the hot melt resin adhesive layer 4. Reflector can be called. In summary, as shown in FIG. 1, the reflecting plate A1 serving as the planar base material base material is formed from the PET film 1, the nonpolar hydrophobic thermoplastic primer layer 2, the silver deposition layer 3, and the nonpolar hydrophobic thermoplastic primer layer ( 2), the hot-melt resin adhesive layer (4), it can be referred to as a base substrate reflecting plate (A1) laminated in the order of the aluminum plate (5).

As described above, a benzophenone or benzotriazole type is used as the ultraviolet absorber (blocking agent), and the thickness of the PET film is 20 to 30 µm, and the thickness of the nonpolar hydrophobic thermoplastic resin primer layer 2 is 3 to 8 µm. The thickness of each layer in the above range is 0.4 to 0.1 mm, and is not limited, and may be flexible depending on the size and use of the reflecting plate.

Next, the unit reflector A2, which is a convex reflector having a limited range of radius of curvature radius arc length, cuts the basic substrate reflector A1 into square flat plate pieces with a predetermined size and curvature radius. The ratio of arcs is press-molded into concave female molds and spherical male molds having a certain limited range to obtain a unit reflector A2 having a convex reflecting surface as shown in FIG. 2A. More specifically, the unit reflector A2 having the convex reflecting surface will be described in detail. The unit reflector A2 having the convex reflecting surface is shaped as shown in FIG. 2A and assumed to limit the curvature of the unit reflecting plate A2. In Fig. 2B, a circular convex curved reflector A3 in which the four corner edges 11 are shown along the dotted lines 12 is shown in Fig. 2B.

It is shown in Figure 2c to limit the curvature of the convex curved reflector A3.

In Fig. 2C, r is the radius of curvature of the circle, c is the center of the circle, a is an arc, and d is a straight line connecting both ends of the arc. d is the width and length of the unit reflector A2 and is also the longest width of the circular convex curved reflector. In the present invention, d is limited to 10 cm.

If d is 10cm r = 6.4cm, α = 11.5cm, E = 1.8, the total angle range reflected by the circular convex reflector (including the unit reflector with convex reflector) is 206 °, d = 10cm, r = 7.1cm, α = 11.47cm, E = 1.6, total reflected angle range is 180 ℃, d = 10cm, r = 9.4cm, α = 10.5cm, E = 1.1 Reflection angle 64 °, d = 10cm, r = 9.86cm, α = 10.3cm, E = 1.04 total reflection angle 60 °, d = 10cm, r = 13cm, α = 10.2cm, E = 0.78 total reflection angle 46 °, d = 10cm, r = 17.7cm, α = 9.3cm, total reflection angle 30 ° at E = 0.53, d = 10cm, r = 20.6cm, α = 8.9cm, total reflection angle 25 ° at E = 0.43 Is reflected.

In the above, as the value of E increases, the total reflection angle increases, the intensity of reflected light decreases, and as the value of E decreases, the total reflection angle decreases and the intensity of illumination increases. Also, in the above example, when d is limited to 10 cm and the total reflection angle range is 206 ° when E = 1.8, the density of reflected light is not preferable even when the reflection angle is 180 °. When the total reflection angle is smaller than 60 °, the illuminance (light density) increases, but the irradiation range of the reflected light is narrow, which is not preferable.

Therefore, in order to obtain an effective reflection angle and illuminance of the reflected light, the total reflection angle is limited to a range of 60 ° to 120 °, and d = 10 cm, which is represented by convex curved reflectors A3 and A3 'in FIG. 2C, respectively.

When the convex surface reflector A3 has a width (horizontal or vertical) d = 10 cm, the total reflection angle range is 120 ° and the ratio of curvature radius to arc length E = a / r is 1.04. When the width (horizontal or vertical) of the convex curved reflector A3 'is limited to d = 10 cm, the total reflection angle is 60 ° and the ratio E' = a '/ r' of the radius of curvature radius to the arc length is 0.53.

In the present invention, the width and width of the unit reflector is set to 10 cm, but in the case of the unit reflector having the same width and width, the reflection angle is the same if E is the same regardless of the width and width.

As described above, a circular fixing tool 13 having a curved height is attached to the center of the concave surface of the unit reflector A2 having a limited width and length and a limited curvature.

In addition, the high ceiling reflecting plate A is connected to the back surface of the unit reflector plate A2 fixed in a row on the flat support plate 22 having the edge 21 formed in all directions as shown in FIG. The fixed columnar fixture 13 may be referred to as a high ceiling reflecting plate A having a high reflectivity by adhesively fixing the fixed columnar fixture 13 on the flat plate 22.

The curvature radius of the concave female mold and the convex male mold press-molding the unit reflector A2 is the same as the curvature radius of the unit reflector A2, and also coincides with the curvature radius of the circular convex curved reflector A3. . In addition, although the curvature is limited to have a certain range, the high ceiling reflector A is composed of unit reflectors A2 having the same curvature. As a result, each unit reflector A2 has the same range of reflection angles, and the reflected light having the same density is irradiated within the reflected angle range.

As described above, the high ceiling reflector A has no loss of reflected light reflected by the parallel light source, and each of the unit reflectors A2 constituting the high ceiling reflector A reflects in a constant direction, so that the illuminance of the light is uniform. It has a density of light and no diffuse reflection occurs. In addition, unlike the lamp type reflector that is irradiated at a baseball field or golf course, there is no need for electric wiring, so there is no fear of short circuit or breakdown of lamps, and it is easy to manage and install, and it is easy to operate. It is a high ceiling reflector with high reflectivity that can be easily used for gardens, large squares, street lamps, outdoor theaters, movie theaters, sports fields, etc.

Figure 1 is a perspective view showing a laminated structure of the basic substrate reflector plate (A1).

2A is a front perspective view of a unit reflector A2 having a convex reflecting surface.

Fig. 2B is a perspective view of a circular convex curved reflector A3 shown along the dotted line.

Fig. 2C is a diagram of an embodiment for limiting curvature of convex curved reflectors A3 and A3 '.

3 is a perspective view of a high ceiling reflector.

Claims (3)

In the high ceiling reflector reflecting by a strong parallel light source at a long distance, the unit reflector A2 having a convex reflecting surface is vertically connected and fixed on the flat support plate 22 on which the edge 21 is formed. A high ceiling reflector (A) having a high reflectivity, which is fixed by a cylindrical fixing tool (13) fixed to the rear concave surface to a flat plate support plate with an adhesive. The unit reflector (A2) according to claim 1 is a PET film (1), a non-polar hydrophobic thermoplastic primer layer (2), a metal deposition layer (3), a thermoplastic primer layer (2) to which a UV absorber 0.5 to 0.2 wt% is added from an upper layer. ), A unit reflector plate (A2) having a convex curved surface formed by cutting the basic base material reflector (A1) laminated in the order of the hot melt resin adhesive layer (4) and the aluminum plate (5). Reflector A. The unit reflector of claim 1, wherein the unit reflector A2 is a unit reflector A2 having a total reflection angle range of 60 ° to 120 ° and a curvature radius arc length ratio E = a / r in a range of 0.53 to 1.04. High ceiling reflector with reflectivity, where E is the curvature, a is the length of the arc, and r is the radius of curvature.

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