KR101468311B1 - LED Outdoor Light Using Light Distribution Controlling Structure with High Efficiency - Google Patents

Abstract

The present invention relates to a high efficiency LED outdoors having a light dispersion control structure, and more particularly to a light emitting diode having at least one light dispersion control module in which at least one reflection control unit is disposed, A high efficiency LED based on a distributed control structure, and the like. The outdoor or the like includes at least one optical dispersion control module (10, 10a, 10b, 10c); At least one reflection control unit (11) disposed in each optical dispersion control module (10, 10a, 10b, 10c); And an LED element for emitting light through the reflection adjusting unit 11. The reflection adjusting unit 11 includes a diffusion hole 111 through which light emitted from the LED element is transmitted to the illumination area, And at least a part of the light emitted from the LED element (LED) is incident on the illumination area via the dispersion wall (112).

Description

{LED Outdoor Light Using Light Distribution Controlling Structure with High Efficiency}

The present invention relates to a high efficiency LED outdoors having a light dispersion control structure applied to outdoor lamps such as street lamps, security lamps, and parks and the like, and more particularly to at least one light distribution control module in which at least one reflection control unit Efficiency LEDs using an optical dispersion control structure that enables high-efficiency illumination using an arrangement structure of the LEDs.

Light emitting diode (LED) illumination refers to light that uses an electro-optic conversion semiconductor in which electrical energy is converted into light energy by a semiconductor as a light source. LED has a smaller power consumption than an incandescent lamp and has an advantage in that the shape or size does not affect the LED efficiency as compared with an illumination lamp such as a fluorescent lamp. The LED also has the advantage of being compact enough to be attached to a device such as a printed circuit board without the need for a device such as a color filter for the required color development. On the other hand, the LED has a disadvantage in that it depends on the ambient temperature of the operating environment and requires a working voltage higher than a certain level.

LED lighting is replacing existing lighting as it grows rapidly with the development of other related industries. In addition, various light distribution modules related to LED lighting are being developed.

Prior art relating to LED illumination is disclosed in Korean Patent Publication No. 2011-0024773, " LED illumination module and illumination lamp using the same ". The prior art includes an LED module including a surface light emitting body in which a plurality of LED elements are arranged on a circuit board having a power supply connector on one side thereof; A light diffusion cover covering the upper part of the LED module in a semicircular can, wherein at least one projecting wing is formed on each of left and right sides; And a heat radiating plate of a metallic material fixed to the lower end of the light diffusion cover by being fitted around the lower edge of the light diffusion cover by overlapping the lower part of the LED module, LED lighting module.

Another prior art related to the LED module is Patent No. 0925490, 'Power LED lamp having a rectangular light distribution'. The prior art includes a plurality of oblique side illumination units each having a slanting tilting illumination angle and formed in the longitudinal direction of the light distribution area to form a left-right symmetrical shape, A plurality of connecting portions connecting upper and lower oblique side illuminating portions of the plurality of oblique side illuminating portions to each other and being recessed inward to form a heat dissipating groove and a connecting portion connecting the oblique side illuminating portions adjacent to the left and right of the lowermost one of the plurality of oblique side illuminating portions A power LED lamp body made of a flat bottom illuminator; A plurality of power LED elements arranged at predetermined intervals in the plurality of oblique side illumination units and the bottom illumination unit to illuminate a light distribution area in a rectangular pattern; And a power LED driving module installed on the power LED lamp body to supply driving power to the power LED device. The power LED lamp has a rectangular light distribution distribution.

The prior art or publicly known technique discloses the entire structure of the LED module. It is advantageous that illumination control is performed for each LED element in an LED lighting module for lighting control such as outdoor and illumination control for the entire LED module is performed again. However, the prior art discloses illumination control of only one LED module. Illumination control for each LED element and illumination control for the LED module are required for high-efficiency LED illumination.

The present invention has been made to solve the problems of the prior art and has the following purpose.

It is an object of the present invention to provide an optical module which can improve efficiency while improving optical characteristics by performing reflection or dispersion control for each LED element disposed in at least one LED module, And a high efficiency LED outdoors by a light dispersion control structure.

According to a preferred embodiment of the present invention, the outdoor or the like comprises at least one optical dispersion control module (10, 10a, 10b, 10c); At least one reflection control unit (11) disposed in each optical dispersion control module (10, 10a, 10b, 10c); And an LED element for emitting light through the reflection adjusting unit 11. The reflection adjusting unit 11 includes a diffusion hole 111 through which light emitted from the LED element is transmitted to the illumination area, And at least a part of the light emitted from the LED element (LED) is incident on the illumination area via the dispersion wall (112).

According to another preferred embodiment of the present invention, at least one of the reflection control unit 11 has a sloped dispersion wall 112. [

According to another preferred embodiment of the present invention, the optical dispersion control modules 10, 10a, 10b and 10c have the same or different optical structures.

According to another preferred embodiment of the present invention, the optical dispersion control modules 10, 10a, 10b and 10c have an arrangement of mxn, where m and n are the same or different natural numbers.

According to another preferred embodiment of the present invention, each optical dispersion control module 10, 10a, 10b, 10c has a plurality of light concentrated areas.

According to another preferred embodiment of the present invention, there is provided a light source device comprising: a reflection adjustment unit (11) having at least one dispersion surface (112) on which light emitted from at least one LED element (LED) element is reflected; At least one optical dispersion control module (10, 10a, 10b, 10c) in which at least one reflection control unit (11) is arranged in a matrix structure; And a heat dissipation module coupled to a back surface of the optical dispersion control module 10, 10a, 10b, 10c.

The outdoor lighting according to the present invention has an advantage that the illumination efficiency can be improved by controlling the lighting of each LED element disposed in the LED module while at the same time controlling illumination of the LED module itself . In addition, the outdoor lighting system according to the present invention has an advantage that the function of the lighting can be improved by adjusting the optical characteristics suitable for the lighting area. In addition, the outdoor lamp according to the present invention has an advantage that reflection or dispersion control is possible so as to be suitable for illumination use.

FIG. 1A shows an embodiment of a light dispersion control module that can be applied to the outdoor and the like according to the present invention.
FIG. 1B shows an embodiment of an illumination by an optical dispersion control module which can be applied to the outside of the present invention.
Fig. 1C shows an embodiment of illumination control possible by Fig. 1B.
FIG. 2A shows an embodiment of various embodiments of the light distribution control module and lighting control that can be applied to the outdoor and the like according to the present invention.
FIG. 2B shows an embodiment of a layout structure of a plurality of optical dispersion control modules.
Fig. 3 shows an outdoor embodiment according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

FIG. 1A shows an embodiment of an optical dispersion control module 10 that can be applied to the outdoor and the like according to the present invention.

Referring to FIG. 1A, an outdoor light or the like according to the present invention includes at least one optical dispersion control module 10; At least one reflection control unit (11) disposed in each optical dispersion control module (10); And an LED element for emitting light through the reflection adjusting unit 11. The reflection adjusting unit 11 includes a diffusion hole 111 through which light emitted from the LED element is transmitted to the illumination area, And at least a part of the light emitted from the LED element (LED) is incident on the illumination area via the dispersion wall (112).

The LED light distribution control module 10 according to the present invention can be applied for outdoor lighting in any area and can be applied to, for example, a street light, a public area light, a park light, a press light or a security light. The LED element applied to the optical dispersion module 10 according to the present invention may be a blue LED, a green LED, and a red LED, but may be a white light through an appropriate RGB system. Further, the LED element applied to the optical dispersion control module 10 according to the present invention may be miniature, mid range or high power. Therefore, the present invention is not limited by the use of the light distribution module or the type of LED element.

The optical dispersion control module 10 may have a structure that controls the dispersion ratio of the light emitted from the LED element (LED) or the light transmitted or reflected from the reflection adjustment unit 11 to the illumination area. The optical dispersion control module 10 includes a plurality of reflection control units 11 disposed on a base plate B, an element division unit 12 arranged on a circuit board P such as a printed circuit board, And an LED element (LED) fixed to the unit 12 and emitting light. The base substrate (B) may be in the form of a polygonal plate or a disc as a whole, but may have various complex shapes without limitation. The base substrate (B) may be made of any material known in the art and may be provided with a transparent window or diffuser plate on the front side as necessary but is not required.

The reflection control unit 11 can be disposed on the base substrate B and can be at least one but preferably at least three and most preferably four to thirty. The reflection adjusting unit 11 may have a light diffusing space structure in which a diffusing hole 111 is formed in the front surface and a dispersing wall 112 is formed along the circumference of the diffusing hole 111. [ The light diffusion spaces form independent light dispersion structures, but the dispersion walls 112 of neighboring light diffusion spaces may have a structure in which the lower portions are connected to each other. The LED element (LED) element may be located in the open region of the dispersion wall 112 located inside the light diffusion space or connected to each other. Therefore, an LED element (LED) must not necessarily be accommodated in each of the reflection control unit 11 or the light diffusion space, and the reflection control unit 11 or the light diffusion space may have a different structure. Also, the reflection adjusting unit 11 may have a circumferential surface having a diffusion hole 111 and a front surface and a rear surface, which form the dispersion wall 112, but the circumferential surfaces may have different geometries. For example, at least one of the circumferential surfaces may be inclined to the edge direction, and the inclination angle may be, for example, 20 to 80 degrees from the base substrate B, but is not limited thereto.

At least one of the dispersion walls 112 of the reflection control unit 11 may have an optical structure different from the others. Optical structures are used herein to refer to those that are capable of imparting optical characteristics due to, for example, material properties or geometric characteristics of the surface, such as reflectance, angle of reflection, or refractive index, thereby allowing comparison with others. For example, the optical structure may be such as the slope or radius of curvature of the diffusing wall 112 with respect to the base substrate (B).

Each of the reflection control units 11 may have a diffuse hole 111 of a different size or may be arranged on the base substrate B in the form of a grid or a matrix. And may have a dispersion wall 112 having a different optical structure. The diffusing wall 112 may be a mirror coating, for example, to improve reflectivity, but is not necessarily required depending on the material. Due to the difference in the optical characteristics of the dispersion wall 112, the reflection control unit 11 forms different light diffusion spaces.

The circuit board P can be coupled to the lower side of the base board B. And the element dividing unit 12 can be arranged on the circuit board P. [ The element dividing units 12 can be arranged at regular intervals irrespective of the arrangement structure of the reflection adjusting units 11. [ As described above, the LED element (LED) does not necessarily have to be disposed inside the light diffusion space. The circuit board P may be, for example, a substrate having a surface coated with a reflective coating, and an LED element (LED) may be disposed in each of the element dividing units 12. [ Wiring for supplying electric power to the LED element (LED) may be formed below the circuit board (P). As such, the circuit board P can form one or a plurality of LED modules as a whole.

The circuit pattern of the circuit board P or the driving method of the LED module may be made by any method known in the art, and the present invention is not limited to the embodiments shown.

Other embodiments of the light distribution module are described below.

FIG. 1B shows an embodiment of an illumination by an optical dispersion control module which can be applied to the outside of the present invention.

Referring to FIG. 1B, the optical dispersion control module 10 may be fixed to the mounting frame 14 and the plurality of reflection control units 11 may be arranged in a matrix structure. LEDs may or may not be installed inside each of the reflection control units 11. [ If the LED is not provided inside the reflection control unit 11, the LED may be installed below the dispersion wall 112. [ On the other hand, the dispersion wall 112 may have a scattering surface structure. The scattering surface structure refers to a continuous formation of scattering bones having a plurality of hemispherical cross-sections in a predetermined direction of the dispersion wall 112 or in a direction perpendicular to the slanting direction. The scattering bone may be formed in a predetermined direction and may be formed with the same or different spacing or depth. The dispersion wall does not necessarily have to be a scattering surface. Further, not all the reflection control units 11 necessarily have scattering surfaces. The scattering surface allows the optical characteristics to be improved while improving the illumination efficiency. For example, the optical characteristics can be improved by allowing a part of the light incident in one direction and another part to be reflected at different surface reflection angles.

The heat dissipation module 17 may be coupled to the rear of the optical dispersion control module 10. [ The heat dissipation module 17 may have a plurality of heat dissipation plates 171 and the heat dissipation plate 171 may extend in a direction perpendicular to the installation frame 14 with a predetermined length. The heat dissipation plates 171 may be arranged parallel to each other and made of a material such as aluminum having a high thermal conductivity, but are not limited thereto. The heat dissipation module 17 may be any structure known in the art and the present invention is not limited to the embodiments shown.

A light diffusion transparent window 16 may be provided on the front surface of the optical dispersion control module 10, but is not necessarily required. Various lights can be controlled by the outdoor unit shown in FIG. 1B.

Fig. 1C shows an embodiment of illumination control possible by Fig. 1B.

In FIG. 1C, the outline is a part connecting the illuminance points, and the area shows the light concentrated areas LD1, LD2, LD3, and LD3, and the light incidence directions L1 , L2, L3) can be determined. The light concentration regions LD1, LD2, and LD3 and the light incidence directions L1, L2, and L3 may be determined by the optical structure of the reflection control unit, respectively. The light incidence directions L1, L2 and L3 can be determined in various directions in one light concentrated area L1, L2 and L3 as shown in Figs. 1 (a), 1 (b) The light concentration regions LD1, LD2, LD3 can be formed at various heights.

The light concentration regions LD1, LD2, LD3 or the light incidence directions L1, L2, L3 can be determined by the nature of the illumination region. For example, in the case of a park or the like, a wide area illumination can be made possible as shown in (c) of FIG. 1c. On the other hand, when a high illuminance is required for a predetermined area, illumination control as shown in (B) of Fig. 1C can be performed. In the case of a general street light, the lighting control shown in Fig. 1 (c) can be applied.

Various light control can be performed by the optical dispersion control module according to the present invention, and the present invention is not limited to the embodiments shown.

The optical dispersion control module having the reflection control units of various structures will be described below.

FIG. 2A shows an embodiment of various embodiments of the light distribution control module and lighting control that can be applied to the outdoor and the like according to the present invention.

The lower part of FIG. 2A shows an embodiment of the light distribution control module, and the upper part shows an embodiment of the light control by the light dispersion control module.

2A, the reflection control units 11 in the respective optical dispersion control modules 10, 10a, 10b, and 10c may be arranged in a matrix structure, but each reflection control unit 11 may have the same or different Optical structure.

2A, the optical dispersion control module 10 has a structure in which one light dispersion row having a reflection adjustment unit 11 having optical structures mutually are disposed and a reflection adjustment unit 11 having different reflection adjustment units 11 The light dispersion rows may be arranged in a matrix structure in order. And the structure of the overall optical dispersion control module 10 may be a symmetric structure.

Referring to FIG. 2A (b), the reflection control unit 11 disposed in the middle of the light dispersion rows arranged in the middle has a relatively large diffusion hole. And the light scattering rows disposed below and above may have the same or similar structure. In such a structure, the illumination control has a structure in which the central portion is concentrated, and can be known from the illumination control in (b) of Fig.

Referring to FIG. 2A, the reflection control unit 11 may be arranged symmetrically around the center portion. And a light diffusion plate 21 may be disposed on the front surface. On the other hand, the same reflection control units 11 can be arranged symmetrically, as shown in (D), (E) and (F) of FIG. The scattering planes of the dispersion wall 112 can be arranged differently and different illumination control can be performed as shown in Figs. 2A to 2B.

The optical dispersion control modules 10, 10a, 10b and 10c having various reflection control units 11 can be applied to the outdoor and the like according to the present invention, and the present invention is not limited to the embodiments shown.

The arrangement structure of the optical dispersion control module will be described below.

FIG. 2B shows an embodiment of a layout structure of a plurality of optical dispersion control modules.

Referring to FIG. 2B, the optical dispersion control modules 10, 10a, 10b, and 10c may be arranged in an n × m structure, where n and m represent the same or different natural numbers. Specifically, the optical dispersion control modules 10, 10a, 10b, and 10c may be arranged in a structure of 1x2, 1x3, 2x2, or 2x2 to form the lighting control module 20. [ Each light control module 20 may have optical dispersion control modules 10, 10a, 10b and 10c having the same or different optical structures and each optical dispersion control module 10, 10a, 10b, May have the same or different reflective control units. Each of the optical dispersion control modules 10, 10a, 10b, and 10c may be fixed to the installation frame 14 or fixed to one installation frame.

The numbers of the optical dispersion control modules 10, 10a, 10b, and 10c included in one illumination control module 20 can be determined by conditions such as the use of illumination or the height of illumination. The optical structure of the reflection control unit included in each of the optical dispersion control modules 10, 10a, 10b, and 10c may be determined by the size or roughness of the illumination area. The embodiments shown in Figs. 2B to 2I are illustrative, and the present invention is not limited to the embodiments shown.

An embodiment such as outdoor by the lighting control module 20 according to the present invention will be described below.

Fig. 3 shows an outdoor embodiment according to the present invention.

3, an outdoor lamp or the like may be composed of a post 31 and an arm 32 and a lighting control module 20 may be installed in the arm 32. [ Various types of mounting frames 14 may be applied and the heat dissipation module 17 may have a structure as described above or may have any structure known in the art.

One light control module 20 may have different optical dispersion control modules 10,10a, 10b and 10c and the optical dispersion control modules 10,10a, 10b and 10c may be grouped or arranged independently of one another But may preferably be made of interconnected structures. It can be formed in the extra arrangement space 34 in the arm 32 as required and the inclination adjusting units 34a and 35 can be installed. An outdoor lighting structure having various structures can be designed by the lighting control module 20 according to the present invention and the present invention is not limited to the embodiments shown.

The outdoor lighting according to the present invention has an advantage that the illumination efficiency can be improved by controlling the lighting of each LED element disposed in the LED module while at the same time controlling illumination of the LED module itself . In addition, the outdoor lighting system according to the present invention has an advantage that the function of the lighting can be improved by adjusting the optical characteristics suitable for the lighting area. In addition, the outdoor lamp according to the present invention has an advantage that reflection or dispersion control is possible so as to be suitable for illumination use.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10, 10a, 10b, 10c: Optical dispersion control module
11: Reflection adjustment unit
111: diffusion hole
112: Distributed wall

Claims (6)

At least one optical dispersion control module (10, 10a, 10b, 10c); A plurality of reflection adjustment units (11) arranged in respective optical dispersion control modules (10, 10a, 10b, 10c); And a plurality of LED elements (LED) that emit light through respective reflection control units (11)
In the reflection control unit 11, a diffusion hole 111 through which the light emitted from the LED element is transmitted to the illumination region is formed. Each of the diffusion holes 111 has a different size, and each diffusion hole 111 The light diffusion spaces having the dispersion walls 112 formed along the peripheries thereof form an independent light dispersion structure and the dispersion walls 112 of the neighboring light diffusion spaces become a structure in which the lower portions are connected to each other, Wherein at least a part of the light emitted from the LED element (112) is incident on the illumination area via the dispersion wall (112), characterized in that the circumferential surfaces forming the light guide plate (112) have different geometrical structures, High efficiency LED by structure and outdoor. delete delete The light scattering control module (10, 10a, 10b, 10c) according to claim 1, wherein the optical dispersion control module (10, 10a, 10b, 10c) has an arrangement of mxn and m and n are the same or different natural numbers. The high efficiency LED outdoors etc. according to claim 1, wherein each of the optical dispersion control modules (10, 10a, 10b, 10c) has a plurality of light concentrated areas.


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