KR20150117007A - Lens optical system for luminous intensity distribution control of led groups, and led groups lighting included the same - Google Patents

Abstract

The present invention relates to a lens optical system for the control of light distribution and an LED group lighting device including the same. The lens optical system is a lens structure, formed of a transparent material, but including a light diffusion lens, designed in a particular outer shape to form a line type band structure. Multiple LED light sources are integrated into one single lens system in order to tune light distribution, still have advantageous parts of the existing COB type LED package and the existing POB type LED package, and improve weak parts of each part. Moreover, the entire brightness is reduced in order to remove a dazzling phenomenon, produce the system at a low cost, and show an excellent radiation property.

Description

TECHNICAL FIELD [0001] The present invention relates to an optical system for a light distribution control of an LED cluster, and an LED cluster light including the same. BACKGROUND ART [0002]

" 형상의 라인구조 적용을 통해 주로 지하 주차장이나 지하도 등에 적합한 용도로 사용할 수 있도록 하며, 하나의 광원에 하나의 렌즈가 결합된 기존 COB(Chip On Board) 타입의 LED 조명과 다수의 광원에 개별 렌즈가 사용된 기존 POB(Package On Board) 타입의 LED 조명에서 발휘되는 장점은 그대로 취하여 살리고, 각각에서의 단점은 개선할 수 있도록 한 LED군집의 배광 제어용 렌즈 광학계 및 이를 포함하는 LED군집 조명에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens optical system for controlling light distribution of an LED cluster, and more particularly, to an LED optical system including a plurality of LED light sources as a lens system, "

"It can be used for underground parking lots and underground roads by applying the shape of the line structure, and it is possible to use the existing COB (Chip On Board) type LED lighting which has one lens combined with one light source, The present invention relates to an optical system for a light distribution control light of an LED cluster and an LED cluster light including the LED optical system for improving the disadvantages of the conventional POB (Package On Board) type LED lighting .

In recent years, light emitting diodes (LEDs) have been used as light sources for energy saving throughout the industry including lighting apparatuses. Accordingly, researches in various industrial fields have been actively carried out to effectively and efficiently use LEDs .

Such an LED light source can be divided into a package on board (POB) type package in which individual lenses are used for a plurality of light sources and a chip on board (COB) type package in which one lens is combined with one light source.

Here, the illumination to which the POB type LED package is applied needs to be individually controlled by individual lenses due to the arrangement of discrete components, the quality of the product is degraded due to a variation in the lifetime of the components, It has drawbacks.

In particular, there is an unreasonable problem that an LED light source having an individual lens is a uniform multi-point source, the overall design level is lowered, an additional waterproof system should be provided, and multiple shadows corresponding to the number of LED light sources are generated.

In addition, the illumination to which the COB type LED package is applied requires a customized heat dissipation and has the disadvantage that glare occurs at high power at a short distance.

Particularly, there is a problem in that a single lens coupled to one light source has a large volume, and since the light amount per unit area is large and the luminance is high, it is coming to consumers with discomfort due to the glare phenomenon at a close range, There is an unfavorable problem that the price of the lighting is inevitably increased.

Accordingly, the present applicant proposes a technology for a line array type optical system (lens) and an LED package which can remarkably improve the performance of the LED illumination in the transient state as described above in the art for the conventional LED illumination do.

Meanwhile, according to the prior art related to the LED community control illumination optical system (lens) to be implemented by the present invention and the LED community light including the same, it is disclosed in Korean Utility Model Application No. 20-2011-0008991, A member; Forming a heat conductive insulating layer on an end of the plate heat radiation member; An LED which is thermally coupled to the heat dissipating member through the thermally conductive insulating layer; A light diffusion mechanism that is matched to the light emission opening of the LED; There is proposed an LED cluster light emitting device having a structure in which the light diffusing mechanism, the heat dissipating member, and the LED are aligned and bound in a vertical direction so as not to hinder the natural convection passages. Japanese Patent Application Laid-Open No. 20-2013-0001409 In the arc, by providing an optical diffuser composed of a tubular body or a rod body, the luminance is low in the diagonal direction from the viewpoint of the light source and the ceiling face is brightened by the relatively large luminance in the horizontal direction, There has been proposed an optical diffuser such as an LED cluster light which can reduce a difference between a light source luminance and a background luminance to reduce uncomfortable glare and generate a unique pattern to display a decorative image of a light source. .

Korea Public Utility Model Official Gazette No. 20-2011-0008991 (Released on September 21, 2011)

Korean Utility Model Publication No. 20-2013-0001409 (published on March 15, 2013)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an optical system for a light distribution control light of an LED cluster and a LED community light including the LED optical system so that a plurality of LED light sources can be used as a single lens system It has its purpose.

The present invention is advantageous in that it is exhibited in a conventional COB (Chip On Board) type LED package in which one lens is coupled to one light source and in an existing POB (Package On Board) type LED package in which individual lenses are used for a plurality of light sources The present invention provides an optical system for a light distribution control light of an LED cluster and an LED cluster light including the optical system.

" 형상의 라인구조 적용을 통해 주로 지하 주차장이나 지하도 등에 적합한 용도로 사용할 수 있도록 하며, 비상 조명용이나 해양 조명용 등으로도 활용할 수 있도록 한 LED군집의 배광 제어용 렌즈 광학계 및 이를 포함하는 LED군집 조명을 제공하는데 있다.The present invention provides "

"It can be used for underground parking lot and underground road mainly by application of shape line structure. It also provides optical system of LED light distribution control for LED community and LED community light including it for emergency lighting or marine lighting .

The present invention has a wide area through the whole structure design of the line type, so that it can exhibit excellent heat dissipation characteristics. In addition, a driver on board technology that goes directly to a PCB board without using a power supply SMPS The present invention provides an optical system for a light distribution control LED of a LED cluster and an LED cluster light including the optical system.

An object of the present invention is to provide an optical system for a light distribution control light of an LED cluster and a LED community light including the same, which can realize high-quality light and differentiated illumination design, and satisfy the diffused light distribution of a conventional fluorescent light.

"의 형상으로 구조 설계되어 라인형 띠(band) 구조를 형성하는 광확산렌즈를 포함하는 것을 특징으로 한다.According to an aspect of the present invention, there is provided an optical system for a light distribution control light of an LED cluster according to the present invention, which is a lens structure made of a transparent material,

And a light diffusion lens which is structurally designed in the shape of a line-shaped band structure.

Here, the light diffusion lens may be configured to have a band structure in the form of an infinite orbital having a valley, the central part of which is recessed inward in the elliptical body.

Here, the light diffusing lens may have a configuration having a convex curved surface with respect to each of the inner and outer surfaces, having an inner surface and an outer surface, and having a symmetrical or asymmetric curved surface.

Here, it is possible to arrange LED light sources in a grouping manner by arranging a plurality of LED objects at intervals, by arranging LED light sources according to the shape of the light diffusion lens, Lt; / RTI >

According to another aspect of the present invention, there is provided an LED cluster lighting system comprising a lens optical system for controlling a light distribution of an LED cluster according to any one of the first to fourth aspects of the present invention.

"의 형상으로 구조 설계된 광확산렌즈가 돌출 형성되어 일체 구비되는 렌즈 광학계; 다수의 LED개체가 상기 렌즈 광학계의 형상에 맞춰 기판 상에 일정 간격으로 라인 배열되어 하나의 그룹을 형성하게 되는 광원인 LED군집; 광원인 LED군집에서 발생되는 열을 외부 배출하기 위한 판형의 방열체; 를 포함하여 이루어지며, 상기 렌즈 광학계와 LED군집이 장착된 기판 및 방열체는 체결에 의해 조립 결합되는 판형 구조이고, 상기 광확산렌즈의 아래쪽에 광원인 LED군집이 위치되어 배광 제어되는 것을 특징으로 한다.
In order to achieve the above-mentioned object, the LED cluster lighting according to the present invention is formed into a lens structure having a plate-shaped body for providing easiness of connection with a substrate for constituting LED community lighting, and as a component of LED community lighting On the plate-shaped body,

"A lens optical system in which a light diffusion lens structured in a shape of a protruding shape is integrally formed and integrally formed, a plurality of LED entities are arrayed at predetermined intervals on a substrate in conformity with the shape of the lens optical system, And a plate-like heat dissipating body for externally discharging heat generated in an LED cluster as a light source, wherein the lens optical system, the substrate on which the LED cluster is mounted, and the heat dissipating body are assembled by fastening, And an LED cluster, which is a light source, is positioned below the light diffusion lens to perform light distribution control.

According to the present invention, it is possible to provide an LED package of a conventional COB (Chip On Board) type in which a plurality of LED light sources can be arranged as a single lens system, and one light source is combined with one lens, The advantages of the conventional package on board (POB) type LED package can be achieved, and the disadvantages in each can be improved.

The present invention is capable of exhibiting excellent heat dissipation characteristics by providing a wide area through the structural design of a line shape, lowering the luminance as a whole, eliminating the glare phenomenon at a high-power near field, And diffusion processing and light distribution control can be performed so as to form a light distribution angle from 100 degrees to 140 degrees, thereby satisfying the diffused light distribution of the conventional fluorescent light.

The present invention provides the advantage of applying Driver On Board technology that goes directly to a PCB board without using a SMPS as a power supply, and can be utilized as lighting suitable for underground parking lots and underground roads, It is possible to achieve usefulness to evolve from uniform illumination to beautiful illumination.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external configuration diagram for explaining an optical system for a light distribution control of an LED cluster according to an embodiment of the present invention; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an optical system for a light distribution control of an LED cluster,
FIG. 3 is a schematic view for explaining an array configuration of LED assemblies matched to a lens optical system for light distribution control of an LED cluster according to an embodiment of the present invention; FIG.
FIGS. 4 and 5 are diagrams for explaining a state of use of a lens optical system for light distribution control of an LED cluster according to the present invention; FIG.
6 is a radiation characteristic data showing a light distribution control characteristic according to application of a lens optical system for light distribution control of an LED cluster according to the present invention.
7 is a light distribution characteristic data showing a light distribution control characteristic according to application of a lens optical system for light distribution control of an LED cluster according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

"의 형상으로 구조 설계되어 라인형 띠(band) 구조를 형성하는 광확산렌즈(110)로 구성된다.As shown in FIG. 1, the lens optical system 100 for controlling the light distribution of the LED cluster according to the embodiment of the present invention is a lens structure made of a transparent material,

And a light diffusion lens 110 structured in a shape of a line-shaped band structure.

At this time, the light diffusion lens 110 forms an endless band shape having a valley 111 by being depressed in an inner direction in a central part of the elliptical body, and the outer shape is similar to the shape of a peanut shell .

Here, it is preferable that the lens optical system 100 composed of the light diffusion lens 110 is formed of a glass material or a polymer material. Examples of the polymer material include polycarbonate (PC), poly Poly (methyl methacrylate) (PMMA), and cycloolefin copolymer (COC), and any one of them may be selected.

2, the light diffusion lens 110 has an inner surface 112 and an outer surface 113, and has a convex curved surface with respect to each of the inner surface 112 and the outer surface 113, As shown in FIG.

”, “

”, “

”의 형상 중에서 선택된 어느 1종의 단면 형상구조로 형성할 수 있으며, 이를 통해 내외면에서 굴절과 반사 작용을 일으킴으로써 광확산 처리 및 배광을 조율하게 된다.That is, the light diffusing lens 110 is a "

","

","

Sectional shape structure selected from a shape of a " -shaped " shape, and by causing refraction and reflection action on the inner and outer surfaces thereof, light diffusion processing and light distribution are coordinated.

Here, the LED chips as light sources are arranged in a space below the inner surface 112 of the light diffusion lens 110 so as to form a band structure, and are arranged in a cluster.

"와 같은 외형 형상에 맞추어 일정 간격으로 다수의 LED광원(LED칩)을 라인 배열하여 띠(band) 구조로 형성하면서 이 라인 배열되는 LED광원(LED칩)의 군집에 대해 하나의 렌즈로 커버하여 단일 광원으로서 기능하도록 지원하되, LED 조명의 사용 용도에 맞게 필요한 배광각도를 형성하도록 광을 확산 처리 및 제어하게 한 것이며, 전체적으로 라인형태를 취하는 구조설계를 통해 휘도를 낮출 수 있어 근거리 하이파워(high-power)시 눈부심 현상을 없앨 수 있음과 더불어 광원의 면적까지 넓힐 수 있도록 한 것이다.The light diffusing lens 110 is disposed on the "

A plurality of LED light sources (LED chips) are arranged in a line at predetermined intervals in accordance with the outer shape of the LED light sources (LED chips) The light is diffused and controlled so as to form a necessary light distribution angle in accordance with the use purpose of the LED illumination, and the structure can be designed in a line shape as a whole to reduce the luminance, - power), it is possible to eliminate the phenomenon of glare and to enlarge the area of the light source.

At this time, diffusion processing and light distribution control can be performed to form a light distribution angle from 100 degrees to 140 degrees through the light diffusion lens 110 structured in the above-described shape.

In addition, it is preferable that the light diffusion lens 110 is made of an aspherical surface rather than a spherical surface. The aspherical surface conic constant and the aspherical surface coefficient can be adjusted through the aspherical surface, and the degree of freedom according to the curved surface can be utilized to the maximum, The radiation path and the light distribution can be freely arbitrarily arbitrarily adjusted for the cluster of the LED light sources correspondingly arranged in accordance with the shape of the diffusion lens 110. [

In addition, the light diffusion lens 110 may be configured in various forms so as to exhibit characteristics according to the use purpose and the use of the LED illumination. For example, the light diffusion lens 110 may have a single configuration, a dual configuration, a heat configuration, And it is possible to manufacture various kinds of LED lighting.

"의 형상으로 구조 설계되어 라인형 띠(band) 구조를 형성하는 광확산렌즈(110)로 구성되는 렌즈 광학계(100)에 의해 광원으로 사용되는 LED(LED칩)는 도 3에 나타낸 바와 같이, 광확산렌즈(110)의 구조 설계된 형상에 맞추어 다수의 LED개체(LED칩)가 일정 간격을 유지한 채로 라인 배열되어 띠(band) 구조를 이루도록 LED군집(200) 처리된다.On the other hand, as described in the above description,

3, an LED (LED chip) used as a light source by a lens optical system 100 composed of a light diffusing lens 110 structured in the shape of a "line-shaped band structure" A plurality of LED elements (LED chips) are arranged in line with a predetermined interval in accordance with the designed shape of the light diffusion lens 110, and the LED assemblies 200 are processed to form a band structure.

The LED cluster 200 is mounted on a substrate 300 such as a PCB on which a driving circuit and a driving component are mounted and is matched with the outer shape of the light diffusion lens 110. The LED cluster 200 includes a plurality of LEDs Chips) 210 are arranged at regular intervals and are arranged in a line to form a band structure.

The LED cluster 200 includes a plurality of LEDs 210 arranged in a shape and arrangement according to a structural design of a line-shaped band structure of the lens optical system 100, The space efficiency can be improved and the lighting efficiency can be improved as compared with the package type. In particular, excellent heat radiation characteristics can be exhibited.

A plurality of LEDs (LED chips) 210 forming the LED cluster 200 may be configured to selectively use DC (direct current) or AC (alternating current) driving power according to the circuit design of the substrate 300 However, it is preferable to use a driver-on-board (ACD) type LED chip so that the driver-on-board technology can be applied directly to the PCB without using the power supply SMPS .

"의 형상으로 구조 설계된 광확산렌즈(110)가 돌출 형성되어 일체 구비된다 할 것이다.4 and 5, the lens optical system 100 having the light diffusion lens 110 provides ease of assembly with the substrate 300 for constituting the LED cluster illumination 1, Can be formed as a lens structure having a plate-shaped body 120 for application as a component of the illumination 1, and on the plate-shaped body 120,

A light diffusion lens 110 structured in a shape of a "shape "

Accordingly, when the lens optical system 100 having the light diffusion lens 110 and the substrate 300 on which the LED assembly 200 is mounted are coupled to the space below the inner surface 112 of the light diffusion lens 110 The LED cluster 200 is located and the LED cluster 200 formed of the plurality of LEDs 210 may be covered with a single lens so as to function as a single light source.

4 and 5 includes a lens optical system 100 having a light diffusing lens 110 for performing the above-described configuration and action, and is provided with a light diffusion lens 110 It is an application example that can be more effectively utilized as lighting for an underground parking lot through the application of the lens optical system 100.

"의 형상으로 구조 설계된 광확산렌즈(110)를 갖는 렌즈 광학계(100)와 다수의 LED개체(210)가 일정 간격으로 라인 배열되어 띠 구조를 형성하는 광원인 LED군집(200) 및 이것의 장착 및 구동을 위한 기판(300), 광원인 LED군집(200)에서 발생되는 열을 외부 배출하기 위한 것으로서 양측단부에 체결공을 갖는 체결부를 갖는 판형의 방열체(400)를 포함하는 구성으로 이루어지게 할 수 있다.That is, the LED community light 1 including the lens optical system 100 having the light diffusion lens 110 has the appearance "

A lens optical system 100 having a light diffusion lens 110 structured in the shape of an LED cluster 210 and a plurality of LEDs 210 arranged in line at predetermined intervals to form a band structure, And a plate heat dissipater 400 for externally discharging heat generated from the LED cluster 200 as a light source and having a fastening portion having fastening holes at both side ends thereof, can do.

In this case, the lens optical system 100, the substrate 300 on which the LED cluster 200 is mounted, and the heat sink 400 can all be formed in a plate-like configuration, so that they can be easily assembled and assembled, And it is possible to provide the advantage that the heat discharging body 400 can be utilized as a fastening plate for lighting.

"의 형상으로 구조 설계한 광확산렌즈(110)를 갖는 렌즈 광학계(100)를 통해서, 기존에 제안되어 획일적인 구성을 갖는 POB 타입 LED패키지와 COB 타입 LED패키지의 장점을 살리면서 단점은 개선할 수 있으며, 특히 전체적인 라인형 구조설계로 넓은 면적을 갖게 함으로써 기존에 비해 우수한 방열특성을 발휘할 수 있고 저가 생산이 가능함은 물론 눈부심을 개선할 수 있으며 차별화된 디자인을 갖는 조명을 창출해낼 수 있어 획일성을 탈피함은 물론 미려한 조명으로 진화시킬 수 있다.In addition,

The drawbacks of the POB type LED package and the COB type LED package, which have been conventionally proposed and have a uniform structure, can be improved through the lens optical system 100 having the light diffusion lens 110 structured in the shape of " Especially, it has a wide area due to the whole line-type structure design, so it can exhibit superior heat dissipation characteristics compared with the existing ones, can be manufactured at low cost, can improve the glare and can produce lighting with differentiated design, And can evolve into a beautiful illumination.

"의 형상으로 구조 설계한 광확산렌즈(110)를 갖는 렌즈 광학계(100)의 적용에 따른 배광 제어특성을 나타낸 시뮬레이션 데이터로서, 도 6은 방사특성을 보여주는 데이터이고, 도 7은 광분포특성을 보여주는 데이터이다.On the other hand, Figs. 6 and 7 show, in the embodiment of the present invention,

6 is data showing the radiation characteristics, and FIG. 7 is a graph showing the light distribution characteristics of the light distribution characteristic of the lens optical system 100 having the light diffusion lens 110 structured in the shape of " It is the data that shows.

In the radiation characteristic shown in FIG. 6, the LED cluster having the line array type band structure is covered with one lens system to perform the light distribution control for forming the light distribution angle of 100 to 140 degrees according to the light distribution control. 7 shows that the light distribution according to the axisymmetry is formed by the outer shape of the light distribution characteristic, but the light is uniformly controlled over the target area of the irradiation surface as a whole.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And will be within the technical scope of the present invention.

1: LED cluster lighting 100: Lens optical system
110: light diffusion lens 111: valley
112: inner surface 113: outer surface
120: plate-shaped body 200: LED cluster
210: LED object 300: substrate

Claims (6)

A lens structure made of a transparent material,

&Quot;, and a light diffusing lens structured in a shape of a line-shaped band structure.
The method according to claim 1,
Wherein the light diffusion lens is an endless band structure having an indentation in a center portion of the elliptical body and a valley portion.
3. The method according to claim 1 or 2,
Wherein the light diffusion lens has a convex curved surface with respect to each of the inner and outer surfaces, the inner and outer surfaces being symmetrical or asymmetric curved surfaces when viewed in cross section.
3. The method according to claim 1 or 2,
Wherein a plurality of LED elements are arranged at intervals in a cluster arrangement with respect to the LED light source according to the shape of the light diffusing lens, thereby enabling a cluster arrangement of the LED light sources in a group form forming a line-shaped band structure Lens optics for light distribution control of LED cluster.
And an optical system for controlling the light distribution of the LED cluster according to any one of claims 1 to 4.
A lens structure having a plate-shaped body for providing ease of association with a substrate for constituting LED cluster illumination and for application as a component of LED community lighting,

A lens optical system integrally formed with a light diffusing lens designed in a shape of a "shape "
An LED cluster which is a light source in which a plurality of LED entities are arranged in a line at predetermined intervals on a substrate in accordance with the shape of the lens optical system to form a group;
A plate type heat sink for externally discharging heat generated in an LED cluster as a light source; And,
Wherein the lens optical system, the substrate on which the LED assembly is mounted, and the heat dissipating body are plate-like structures assembled by fastening, and the LED cluster, which is a light source, is positioned below the light diffusion lens to control the light distribution.

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