KR101132217B1 - Light-emitting diode illumination device of asymmetry reflective - Google Patents

Abstract

The present invention relates to an asymmetric reflective LED luminaire, the asymmetric reflective LED luminaire according to the present invention comprises a housing; A plurality of LED light sources (point light sources) installed in the housing to irradiate point light rays into the housing; And a reflector for asymmetrically reflecting the incident light beams of the LED light source to collect each of the asymmetrically reflected light beams and emit them in the form of a surface light source.

According to the present invention, as a plurality of beams in the form of asymmetrically reflected points on the reflecting plate are collected and emitted in the form of a surface light source, only the light path due to reflection is changed, thereby minimizing light loss due to light absorption and scattering, thereby improving lighting efficiency. Accordingly, it is possible to adjust the direction and spread of the reflected beam while minimizing the energy consumption, and thus it is possible to adjust the direction of direct and peripheral illumination, and to adjust the reflecting beam direction and spread according to the angle of reflection. Its simple structure, low production cost, and anti-glare by indirect lighting method can be applied to fluorescent lamps, indoor lights, street lamps and other outdoor lights, and the reflector has a heat sink function. It prevents the temperature rise inside the installed circuit board and damages LED and circuit board by heat. There is an effect that can be prevented.

 Lighting equipment, LED, reflector, asymmetrical reflection, point light source, surface light source

Description

Asymmetric reflective LED luminaires {LIGHT-EMITTING DIODE ILLUMINATION DEVICE OF ASYMMETRY REFLECTIVE}

The present invention relates to an asymmetric reflective LED luminaire, and more particularly, to an asymmetric reflective LED luminaire for outputting in the form of a combined surface light source by asymmetrically reflecting light rays incident in the form of dots.

In general, a halogen lamp is provided with a halogen gas encapsulated in a quartz tube and provided with a tungsten wire. The halogen lamp is used for lighting in a picture or a photo or in a shopping mall. Excessive, heat dissipation of the color of the reflective object or to increase the indoor temperature in the summer to increase the power consumption and there is a disadvantage that can not obtain a variety of colors.

Therefore, in recent years, the use of lamps using LEDs (Light Emitting Diodes (hereinafter referred to as 'LEDs')) is rapidly increasing. Such a light emitting diode is a photoelectric conversion semiconductor device having a structure in which an N-type semiconductor crystal in which a plurality of carriers are electrons and a P-type semiconductor crystal in which a plurality of carriers are holes are bonded to each other. A semiconductor light emitting device using spontaneous emission light generated upon recombination.

Because LED has high photoelectric conversion efficiency, power consumption is very low as 5W, so there is little heat generation, and because it is not thermal and discharge light, preheating time is unnecessary when lighting and turning off, so the lighting and turning off speed is fast.

In addition, since there is no gas or filament, it is strong in shock and safe, and adopts stable DC lighting method, which consumes less power, enables high repetition and pulse operation, reduces optic nerve fatigue, and is semi-permanent. It can also produce lighting effects, and can be miniaturized by using a small light source.

However, in the case of using the LED as a point light source in the prior art, the number of the light must be provided in order to improve the lighting efficiency. Therefore, the cost increases, and when the large number is disposed, the LEDs are provided in close proximity, and the life of the LEDs is increased due to the heat generated during lighting. There was a problem that is degraded and requires maintenance.

In addition, high-brightness LEDs are not suitable for lighting functions because glare occurs when directly irradiated to the eyes, and as a way to solve them, a separate light guide plate for performing LED brightness and uniform lighting functions may be provided. When the light guide plate is installed, there is a problem in that the efficiency of the light source is reduced due to absorption and scattering of light into the light guide plate, and the structure is complicated.

The present invention has been made to solve the above-mentioned problems, the object of which is that the asymmetrical reflection of the various beams in the form of point asymmetrically reflected on the reflector is emitted in the form of surface light source, only the light path by the reflection is changed only the absorption of light and The lighting efficiency is improved by minimizing the loss of light due to scattering and the energy consumption can be minimized. Therefore, the direction of direct beam and periphery can be adjusted accordingly, and the direction of reflection beam can be adjusted according to the angle of reflection. The present invention provides an asymmetric reflective LED luminaire that can control the spreading and spreading properties.

In addition, another object of the present invention, a simple structure using a small number of LEDs, the production cost is also low, and indirect lighting method prevents glare, so that lighting can be applied to fluorescent lamps and other indoor lights, street lights and other outdoor lights It is to provide an asymmetric reflective LED luminaire capable of functioning.

In addition, another object of the present invention is to provide an asymmetric reflective LED luminaire which prevents the LED and the circuit board from being damaged by heat by preventing the temperature rise inside the circuit board in which the LED is installed since the reflector has a heat sink function. In providing.

The present invention to achieve the above object, the housing; A plurality of LED light sources installed on the opposite inner walls of the housing to have direct angles to irradiate point light rays into the housing, and to adjust a light irradiation angle; And the center of the convex or concave shape is provided on the inner bottom of the housing and a plurality of horn-shaped protrusions arranged in a plurality of incident light rays of the LED light source are formed in a continuous arrangement horizontally and vertically, through which asymmetrical reflection is asymmetrically reflected The rays of light are collected in the form of a surface light source and radiate in all directions to serve as an indirect illuminator, and the surface is formed of a high-gloss synthetic resin material, and at least one of the number of formation, the angle of formation, the size of formation and the spacing of the protrusions. A reflector that can be replaced otherwise; Characterized in that it comprises a.

In addition, in the present invention, the surface of the reflector is made of chromium, silver, aluminum, gold, zinc sulfide, nickel, chromated zinc, tin, rhodium, brass or nickel-iron alloy or tin-nickel or lead-tin alloy. It is characterized in that the plating of any one or at least two of the alloys in combination.

In addition, the protrusion in the present invention is characterized in that it is formed in a square pyramid shape.

In addition, the protrusion in the present invention is characterized in that it is formed in a conical shape.

In addition, each of the protrusions in the present invention is characterized in that disposed adjacent or spaced apart from each other.

As described above, the asymmetric reflective LED luminaire of the present invention collects a plurality of asymmetrically-reflected dot-shaped beams on a reflector and emits them in the form of a surface light source, thereby changing only the light path due to reflection, thereby preventing the loss of light due to light absorption and scattering. By minimizing the lighting efficiency and minimizing the energy consumption, the direction and spreading of the reflected beam can be adjusted accordingly, and the direct and peripheral illumination can be adjusted accordingly, and the degree of spreading of the reflected beam can be adjusted by adjusting the reflecting angle. In addition, it uses a small number of LEDs, which is simple in structure, low in production cost, and prevents glare by indirect lighting. Therefore, it can be applied to fluorescent lights, other indoor lights, street lamps, and other outdoor lights. It also has a heat sink function, which prevents the temperature rise inside the circuit board where the LED is installed. Therefore, there is an effect to prevent the LED and the circuit board from being damaged by heat.

Hereinafter, with reference to the accompanying drawings, the asymmetric reflective LED lighting apparatus of the present invention will be described with reference to the following.

The asymmetric reflective LED luminaire according to the preferred embodiment of the present invention includes a housing 110, an LED light source 120 and a reflector plate 130 in an indirect lighting manner as shown in Figs. It is desirable to form the same size as the conventional indoor and outdoor lamps.

On the other hand, the asymmetric reflective LED lighting device 100 of the present invention can be grafted in various ways, such as a backlight module used in a liquid crystal display (LCD), or lighting inside or outside a building.

The housing 110 is provided with an outer wall of which one or both of the upper and lower surfaces are opened so that the LED light source 120 and the reflector plate 130 are fixed therein, and the terminal is adapted to apply power to the LED light source 120. It is provided at both ends, respectively.

The LED light source 120 is a light emitting diode (light emitting diode) lamp, a small number or a plurality of installed in the state opposite to the upper end of the inner wall of the housing 110, the protrusion when the protrusion 132 of the reflector 130 is linear It is preferable to arrange a plurality in a linear form while being parallel to 132.

In this case, the LED light source 120 is irradiated with a dot-shaped light beam for each protrusion 132 of the housing 110, that is, the reflecting plate 130 facing by the applied power source.

The reflective plate 130 is installed on the inner bottom of the housing 110, and the synthetic resin including ABS resin (Acrylonitrile Butadiene Styrene copolymer) to output in the form of a surface light source while asymmetrically reflecting the point light beam through the LED light source 120 Alternatively, in the process of forming or bending the aluminum sheet or the like, the protrusions 132 continuously formed at predetermined intervals are formed.

Furthermore, the reflector plate 130 is illustrated as having a flat plate shape, but when the vertices of the protruding portion 132 are connected to each other at the center except for the edge of the reflector plate 130, the reflector plate 130 may be formed in a convex or concave shape. A light source can be irradiated to a large area by spreading the emitted beam, and when formed in a concave shape, the beam can be focused.

The principle of asymmetric reflection is that a light beam incident in the form of a point light source from the LED light source 120 is asymmetrically reflected to the horizontal plane 133 through the reflector plate 130, so that the asymmetrically reflected light beams are collected and thus the horizontal plane 133 of the reflector plate 130. The line width of the light rays incident in this process is widened upon reflection, and neighboring light rays are emitted to the surface light source through the overlapping process.

In this case, since the light of the LED light source 120 is scattered on the surface of the reflecting plate 130, it is preferable to improve the surface roughness such as a mirror surface to perform high gloss, for example, the surface of chromium (Cr), silver (Ag), aluminum (Al), gold (Au), zinc sulfide (ZnS), nickel (Ni), chromated zinc (Zn), tin (Sn), rhodium (RHODIUM), brass or nickel-iron alloys or tin-nickel or lead -Plating any one or at least two of alloys including tin alloy, platinum, monel metal, cadmium (Cd), etc., and changing to plating material or coating method other than plating Implementation is possible. Here, the reflective plate 130 may be applied after the post-treatment when plating silver (Ag) on the surface.

In addition, when the reflecting plate 130 is metal-plated on a metal material or surface, the reflecting plate 130 also has a heat sink function, thereby preventing an increase in the internal temperature during long-term use of the asymmetric reflective LED lighting device 100.

On the other hand, the reflecting plate 130 can be replaced by changing at least one of the number, the forming angle, the forming size and the forming interval of the protrusion 132, so that the asymmetric reflection upon incident of the point light source beam by the protrusion 132 You can change the characteristics of.

Therefore, in the asymmetric reflective LED lighting device 100 according to the present invention, when the power is applied, the LED light source 120 is turned on, and the light beam is uniformly incident on the protrusion 132 of the reflector 130.

At this time, the light beam irradiated from the LED light source 120 is reflected asymmetrically to each of the protrusions 132 and is collected in a vertical direction from the horizontal plane 133 of the reflector 130 so that a plurality of point-shaped light is combined It is output in the form of light.

Furthermore, since the LED light source 120 is asymmetrically reflected light of the point light source form to the protrusion 132 of the reflecting plate 130 to irradiate the light in the form of a surface and adopts an indirect illumination method to eliminate glare and fluorescence when combined with a fluorescent lamp, etc. It has the advantage that can be used as an alternative lighting of fluorescent lamp by making the same size.

In addition, since the reflecting plate 130 also has a heat sink function, the internal temperature of the asymmetric reflective LED lighting device 100 may be prevented and the life of the LED light source 120 may be prevented from being damaged due to heat.

Asymmetric reflective LED lighting apparatus according to another embodiment of the present invention includes a housing 210, an LED light source 220 and a reflector 230 in an indirect lighting method as shown in Figure 3, It is desirable to form the same size.

On the other hand, the asymmetric reflective LED luminaire 200 of the present invention can be variously applied to a backlight module used in a liquid crystal display (LCD) or to lighting inside or outside a building.

The housing 210 is provided with an outer wall on either side of which the upper and lower surfaces are opened so that the LED light source 220 is fixed to the inner wall and the reflector plate 230 is fixed to the inner bottom of the housing 210. Terminals (not shown in the figure) are provided at both ends to apply power.

In addition, the housing 210 may be changed to correspond to the shape of the horn of the protrusion 232 of the reflector 230, which will be described later. For example, if the protrusion 232 has a quadrangular pyramid shape, the reflective surface may have a square pillar shape corresponding to each other. It is formed as.

LED light source 220 is a light emitting diode (light emitting diode) lamp, a small number or a plurality of installed on the inner wall top of the inner wall of the housing 210, so as to correspond to the number of the projections 232 of the reflector 230 or not to correspond It may be provided.

At this time, the LED light source 220 is irradiated with a dot-shaped beam for each of the protrusions 232 of the reflecting plate 230 facing each other, that is, corresponding to the inside of the housing 210 by the applied power.

Reflector 230 is installed on the inner bottom of the housing 210, a synthetic resin including ABS resin (Acrylonitrile Butadiene Styrene copolymer) or the like to output in the form of a surface light source while the asymmetric reflection of the point beam through the LED light source 220 or In the process of forming or bending the aluminum sheet or the like, protrusions 232 are formed that are continuously arranged horizontally and vertically at predetermined intervals.

The principle of asymmetric reflection is that the beam incident in the form of a point light source from the LED light source 220 is reflected asymmetrically through the reflector 230 and the asymmetrically reflected beams are collected and emitted in a direction perpendicular to the horizontal plane of the reflector 230. The line width of the incident beam inside is widened upon reflection, so that the neighboring beams are emitted to the surface light source through the overlapping process.

That is, the reflecting plate 230 causes the point light source of the LED light source 220 to be asymmetrically reflected by the protrusion 232 to be irradiated in the direction of the object which is approximately perpendicular to the horizontal plane, so that the incident wave of the LED light source 220 having the narrow line width is eventually It is asymmetrically reflected and outputs a reflected wave with a wide line width to illuminate the object.

In this case, since the beam of the LED light source 220 is scattered on the reflecting surface, the reflecting plate 230 is preferable to improve the surface roughness such as a mirror surface to perform high gloss. For example, the surface is chromium (Cr), silver (Ag), and aluminum. (Al), gold (Au), zinc sulfide (ZnS), nickel (Ni), chromated zinc (Zn), tin (Sn), rhodium (RHODIUM), brass or nickel-iron alloys or tin-nickel or lead -Plating any one or at least two of alloys including tin alloy, platinum, monel metal, cadmium (Cd), etc., and changing to plating material or coating method other than plating Implementation is possible. Here, the reflective plate 130 may be applied after the post-treatment when plating silver (Ag) on the surface.

In addition, when the reflecting plate 230 is metal-plated on a metal material or surface, the reflecting plate 230 also has a heat sink function, thereby preventing an increase in internal temperature during long-term use of the asymmetric reflective LED luminaire 200.

On the other hand, since the reflective plate 230 can be replaced by changing at least one of the number, formation angle, formation size, and formation interval of the protrusion 232, the asymmetric reflection of the incident light beam by the protrusion 232 Can change characteristics.

Here, the protrusion 232 is continuously arranged in a horn shape in the horizontal and vertical directions on the reflecting plate 230, the horn shape is preferably formed to have a square pyramid shape or the like. In this case, the protrusions 232 may be spaced apart from each other and may be spaced apart from each other to be adjacent to each other or in a horizontal plane. In this embodiment, the protrusions 232 are disposed to be adjacent to each other.

In particular, when the protrusion 232 is formed in a quadrangular pyramid shape, when the irradiation beam of the LED light source 220 positioned on the outside of the reflector 230 is reflected to correspond to each of the four reflecting surfaces, it is generated in a continuous quadrangular shape. As the overlapping area of the beam increases, illuminance is improved.

As a result, the protrusion 232 may be formed in a square pyramid shape to adjust the direction of the reflected light and the spread of the reflected light, that is, the direction under the reflected light and the illuminance of the surroundings. In this case, the size and pitch of the protrusion 232 may be formed in the range of μm ~ nm, it is possible to change the dimensions without being limited thereto.

On the other hand, by adjusting the angle of reflection reflected from the protrusion 232 of the reflector 230, it is possible to adjust the degree of spreading of the reflected beam so as to result in such as adjusting the spreading of the beam through the lens, which is not shown in the figure LED light source Adjusting the angle of the 220 or the LED light source 220 to be carried out through a drive unit for moving to the X, Z axis.

Furthermore, the reflecting plate is illustrated as being in the form of a flat plate, but when the vertices of the protrusions 234a and 234b are connected to each other at the center except for the edge of the reflecting plate 234, the reflecting plate may be formed in a convex or concave shape. The light source can be irradiated to a large area by spreading the beam, and when formed in a concave shape, the beam can be focused.

In this case, when the reflecting plate 234 is formed in a concave shape, the inner bottom surface of the housing 210 has a free space formed by the concave height of the reflecting plate 234, or the bent edge of the reflecting plate 234 is bent downward. Can be equal to the concave height of the reflecting plate 234.

Therefore, in the asymmetric reflective LED lighting apparatus 200 according to the present invention, when the power is applied, the LED light source 220 installed on all four inner walls of the housing 210 is turned on, and the beam is reflected from the projection 232 of the reflecting plate 230. Incident uniformly on

At this time, the beam irradiated from the LED light source 220 is reflected asymmetrically to each of the protrusions 232 and is collected in the vertical direction from the horizontal plane of the reflecting plate 230 to be output in the form of light by combining a plurality of point-shaped light Will be. In addition, since the overlapping area of the beam is increased while generating a continuous rectangular shape when light is emitted through the protrusion 232, the illuminance is improved.

In addition, the indirect illumination method is adopted while irradiating the light in the form of a surface by asymmetrically reflecting the light in the form of a point light source, which is the LED light source 220, to the protrusion 232 of the reflector 230, thereby eliminating glare and using it as an alternative light for indoor lighting. There is an advantage to this.

On the other hand, when the reflection plate 230 is formed in a convex or concave shape, light is emitted in a large area in the convex state, and light is condensed in the concave state.

In addition, since the reflector 230 also has a heat sink function, the internal temperature of the asymmetric reflective LED lighting device 200 is prevented from rising and the damage of the LED light source 220 due to heat can be prevented to extend the life.

As shown in FIG. 4, the asymmetric reflective LED lighting device according to another embodiment of the present invention includes a reflecting plate 230 ′ in which the housing 210, the LED light source 220, and the protrusion 232 ′ are formed in an indirect lighting manner. It includes, the housing 210 and the LED light source 220 has the same structure and function as that of the previous embodiment, so a detailed description thereof will be omitted.

Here, the protrusion 232 ′ is continuously arranged in a horn shape on the reflection plate 230 ′ in the horizontal and vertical directions, and the horn shape is preferably formed to have a cone shape or the like. In this case, the protrusions 232 ′ may be disposed adjacent to or spaced apart from each other, and in this embodiment, the protrusions 232 ′ are disposed adjacent to each other.

When the protrusion 232 'is formed in a conical shape, when the irradiation beam of the LED light source 220 located on the outer sides of the reflector 230' is emitted while being reflected on the circumferential surface, the beam is generated in a continuous ring shape. Since the overlap area of is increased, roughness is improved.

As a result, the protrusion 232 ′ may be formed in a cone shape to adjust the direction of the reflected light and the spreading of the reflected light, that is, the direction under the reflected light and the illuminance of the surroundings. In this case, the size and pitch of the protrusion 232 ′ may be formed within a μm˜nm, and the present invention is not limited thereto.

On the other hand, the shape of the reflective plate 230 ′ may be formed in a convex or concave shape as in the previous embodiment.

In the detailed description of the present invention described above with reference to the preferred embodiment of the present invention, the scope of protection of the present invention is not limited to the above embodiment, and those skilled in the art of the present invention It will be understood that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

1 is a schematic diagram showing an asymmetric reflective LED luminaire of an embodiment according to the present invention.

Figure 2 is a schematic diagram showing an asymmetric reflective LED luminaire of another embodiment according to the present invention.

3 is a perspective view showing an asymmetric reflective LED lighting apparatus according to another embodiment of the present invention.

4 is a perspective view showing an asymmetric reflective LED lighting apparatus according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: an embodiment of the asymmetric reflective LED luminaire

110: housing 120: LED light source

130: reflector 132: protrusion

133: horizontal plane

200: asymmetric reflective LED lighting fixture of another embodiment

210: housing 220: LED light source

230, 230 ': Reflector 232, 232': protrusion

Claims (5)

housing; A plurality of LED light sources installed on the opposite inner walls of the housing to have direct angles to irradiate point light rays into the housing, and to adjust a light irradiation angle; And The center of the housing is formed in a convex or concave shape on the inner bottom of the housing, and a plurality of horn-shaped protrusions in which a plurality of incident light rays of the LED light source are arranged are continuously and horizontally arranged, thereby asymmetrically reflecting each of the asymmetrically reflected The light rays are collected in the form of a surface light source and are emitted in all directions to serve as an indirect illuminator, and the surface is formed of a high gloss synthetic resin material, and at least one of the number of formation, the angle of formation, the size of formation and the spacing of the protrusions is different. Replaceable reflectors; Including, The projection is asymmetrical reflective LED lighting device, characterized in that formed in a square pyramid shape. housing; A plurality of LED light sources installed on the opposite inner walls of the housing to have direct angles to irradiate point light rays into the housing, and to adjust a light irradiation angle; And The center of the housing is formed in a convex or concave shape on the inner bottom of the housing, and a plurality of horn-shaped protrusions in which a plurality of incident light rays of the LED light source are arranged are continuously and horizontally arranged, thereby asymmetrically reflecting each of the asymmetrically reflected The light rays are collected in the form of a surface light source and are emitted in all directions to serve as an indirect illuminator, and the surface is formed of a high gloss synthetic resin material, and at least one of the number of formation, the angle of formation, the size of formation and the spacing of the protrusions is different. Replaceable reflectors; Including, The projection is asymmetrical reflective LED lighting fixture, characterized in that formed in a conical shape. The method according to claim 1 or 2, The reflector surface is any one of an alloy containing chromium, silver, aluminum, gold, zinc sulfide, nickel, chromate zinc, tin, rhodium, brass or nickel-iron alloy or tin-nickel or lead-tin alloy, or the like. An asymmetric reflective LED luminaire, characterized in that the plating at least two or more in combination. The method according to claim 1 or 2, Each of the protrusions is asymmetric reflective LED lighting device, characterized in that disposed adjacent or spaced apart from each other. delete

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