KR102093911B1 - Lighting device - Google Patents

Lighting device Download PDF

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KR102093911B1
KR102093911B1 KR1020120148242A KR20120148242A KR102093911B1 KR 102093911 B1 KR102093911 B1 KR 102093911B1 KR 1020120148242 A KR1020120148242 A KR 1020120148242A KR 20120148242 A KR20120148242 A KR 20120148242A KR 102093911 B1 KR102093911 B1 KR 102093911B1
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South Korea
Prior art keywords
light
distribution control
light distribution
control pattern
lighting device
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KR1020120148242A
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Korean (ko)
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KR20140078932A (en
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안경수
이정오
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엘지이노텍 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

본 발명은 인쇄회로기판에 실장되는 광원모듈, 상기 광원모듈로부터 출사되는 광을 전달하는 광가이드모듈, 및 상기 광가이드모듈의 일면에 배치되어, 제1 배광조절패턴이 형성되는 배광조절부재를 포함하는 조명장치를 제공한다.The present invention includes a light source module mounted on a printed circuit board, a light guide module for transmitting light emitted from the light source module, and a light distribution control member disposed on one surface of the light guide module to form a first light distribution control pattern. To provide a lighting device.

Description

조명장치{LIGHTING DEVICE}Lighting device {LIGHTING DEVICE}

본 발명은 조명장치를 효율적으로 제조하기 위한 방안에 관한 것이다.
The present invention relates to a method for efficiently manufacturing a lighting device.

LCD(Liquid Crystal Display)는 스스로 빛을 내는 자기발광성이 없어 항상 모든 LCD에는 백라이트(Backlight)가 필요하다. 백라이트는 LCD의 광원역할을 하는데 액정모듈의 후면에서 빛을 조사시키기 위하여 광원자체를 포함하여 광원의 구동을 위한 전원 회로 및 균일한 평면광을 이루도록 해주는 일체의 부속물을 이루는 복합체를 백라이트 유닛(Backlight Unit: BLU)이라고 한다. 상기 LCD를 조명하기 위한 광원으로 근래에는 발광다이오드(LED)를 이용한 백라이트 유닛이 제안되었다. LCD (Liquid Crystal Display) does not emit light itself, so every LCD always needs a backlight. The backlight serves as a light source for the LCD. The backlight unit (Backlight Unit) is composed of a power supply circuit for driving the light source, including the light source itself, and an integral part that makes uniform flat light to emit light from the back of the liquid crystal module. : BLU). As a light source for illuminating the LCD, a backlight unit using a light emitting diode (LED) has recently been proposed.

LED(Light Emitting Diode)는 반도체에 전압을 가할 때 생기는 발광현상을 이용하여 빛을 발생시키는 발광소자로서, 종래의 광원에 비해 소형이고, 수명이 길며, 전기 에너지가 빛에너지로 직접 변환하기 때문에 에너지 효율이 높음과 동시에 낮은 동작전압을 갖는다는 장점이 있다. LED (Light Emitting Diode) is a light emitting device that generates light by using a luminescence phenomenon that occurs when a voltage is applied to a semiconductor. It is small compared to conventional light sources, has a long life, and converts electrical energy directly into light energy. It has the advantage of high efficiency and low operating voltage.

상기 LED는 액정표시장치에도 이용되는데, 액정표시장치(Liquid Crystal Display: LCD)는 모니터와 이동통신 단말기 등의 표시장치로서 각광받고 있다. 이러한, 액정표시장치는 점점 슬림화되고 있고 그에 따라 액정표시장치의 폭을 감소하는 것이 요구되고 있다. 따라서, 액정표시장치의 폭을 감소시키기 위해서는 액정표시장치의 폭에 영향을 미치는 백라이트 유닛의 크기를 감소시켜야 한다. The LED is also used in a liquid crystal display device, and a liquid crystal display (LCD) is spotlighted as a display device such as a monitor and a mobile communication terminal. Such a liquid crystal display device is becoming increasingly slim, and accordingly, it is required to reduce the width of the liquid crystal display device. Therefore, in order to reduce the width of the liquid crystal display, it is necessary to reduce the size of the backlight unit affecting the width of the liquid crystal display.

도 1은 종래기술에 따른 조명장치를 도시한 도면이다.1 is a view showing a lighting device according to the prior art.

도 1의 (a)를 참고하면, 종래기술에 따른 조명장치는 인쇄회로기판(10)에 구비된 광원모듈(20), 광원모듈(20)의 상부에 확산판(30)을 구비하여, 확산판(30)에서 광원모듈(20)로부터 출사된 광을 확산시키도록 하고 있다. 이러한, 조명장치는 평판면에 대하여, 광원모듈(20)로부터 출사된 광이 확산판(30)을 통해 확산되고 있지만, 여러 영역으로 광이 퍼지게 된다.Referring to (a) of FIG. 1, the lighting device according to the prior art includes a light source module 20 provided on the printed circuit board 10 and a diffusion plate 30 on the top of the light source module 20, thereby diffusing. In the plate 30, light emitted from the light source module 20 is diffused. In the lighting device, light emitted from the light source module 20 is diffused through the diffusion plate 30 with respect to the flat surface, but light spreads to various areas.

도 1의 (b)와 같이, 굴곡이 있는 조명장치의 경우에도, 광원모듈(20)로부터 출사된 광이 여러 영역으로 퍼지게 되어, 각도에 따른 광도가 일정하게 유지된다.1 (b), even in the case of a curved lighting device, the light emitted from the light source module 20 spreads to various regions, so that the light intensity according to the angle is kept constant.

따라서, 종래기술에 따른 조명장치는 특정 영역으로 광을 집광시켜 자유롭게 여러 영역으로 광을 분포시키는 배광을 조절할 수 있는 방안이 필요한 실정이다.
Therefore, the lighting apparatus according to the prior art is in need of a method that can control light distribution by condensing light to a specific area and freely distributing light to various areas.

본 발명의 일실시예는 광가이드모듈의 일면에 배광조절패턴이 형성된 배광조절부재를 구비함으로써, 광원모듈로부터 출사된 광을 자유롭게 조절할 수 있는, 조명장치를 제공한다. An embodiment of the present invention provides a lighting device capable of freely controlling light emitted from a light source module by providing a light distribution control member having a light distribution control pattern formed on one surface of the light guide module.

본 발명의 일실시예는 음각구조의 다각뿔패턴으로 배광조절패턴을 형성함으로써, 상기 다각뿔패턴의 하부 경사각의 각도를 조절하여 배광을 조절할 수 있는 조명장치를 제공한다. An embodiment of the present invention provides a lighting device capable of adjusting light distribution by adjusting an angle of a lower inclination angle of the polygonal pyramid pattern by forming a light distribution control pattern with a polygonal pyramid pattern of an intaglio structure.

본 발명의 일실시예는 광가이드모듈을 사이에 두고 형성되는 배광조절부재와 반사판에 대해서 각각 다른 배광조절패턴을 형성함으로써, 상기 광가이드모듈, 상기 배광조절부재, 상기 반사판 중 어느 하나를 이용하여 용이하게 배광을 조절할 수 있는 조명장치를 제공한다.
According to an embodiment of the present invention, by forming different light distribution control patterns for the light distribution control member and the reflection plate formed with the light guide module interposed therebetween, using one of the light guide module, the light distribution control member, and the reflection plate It provides a lighting device that can easily adjust the light distribution.

본 발명의 일실시예에 따른 조명장치는 인쇄회로기판에 실장되는 광원모듈, 상기 광원모듈로부터 출사되는 광을 전달하는 광가이드모듈, 및 상기 광가이드모듈의 일면에 배치되어, 제1 배광조절패턴이 형성되는 배광조절부재를 포함한다.A lighting device according to an embodiment of the present invention is a light source module mounted on a printed circuit board, an optical guide module for transmitting light emitted from the light source module, and a first light distribution control pattern disposed on one surface of the optical guide module It includes a light distribution control member is formed.

상기 제1 배광조절패턴은 음각구조의 다각뿔패턴이 형성될 수 있다.The first light distribution control pattern may have a polygonal pyramid pattern having an intaglio structure.

상기 제1 배광조절패턴은 상기 다각뿔패턴의 하부 경사각이 30 ~ 120 도의 값을 가지도록 형성될 수 있다.The first light distribution control pattern may be formed such that the lower inclination angle of the polygonal pyramid pattern has a value of 30 to 120 degrees.

상기 광가이드모듈은 제2 배광조절패턴이 형성될 수 있다.A second light distribution control pattern may be formed in the light guide module.

상기 제1 배광조절패턴의 음각구조와 상기 제2 배광조절패턴의 음각구조가 상호 상이하게 형성될 수 있다.The intaglio structure of the first light distribution control pattern and the intaglio structure of the second light distribution control pattern may be formed differently.

상기 조명장치는 상기 광가이드모듈의 상기 일면에 대향하는 타면에 형성되는 반사판을 더 포함할 수 있다.The lighting device may further include a reflector formed on the other surface facing the one surface of the light guide module.

상기 반사판은 제3 배광조절패턴이 형성될 수 있다.A third light distribution control pattern may be formed on the reflector.

상기 제1 배광조절패턴의 음각구조와 상기 제3 배광조절패턴의 음각구조가 상호 상이하게 형성될 수 있다.The intaglio structure of the first light distribution control pattern and the intaglio structure of the third light distribution control pattern may be formed differently.

상기 광원모듈은 직하형 LED 또는 측면형 LED를 포함할 수 있다.The light source module may include a direct-type LED or a side-type LED.

상기 광원모듈이 직하형 LED인 경우, 상기 광가이드모듈 및 상기 배광조절부재는 상기 광원모듈의 광 출사면과 대향되는 일면에 배치될 수 있다.When the light source module is a direct-type LED, the light guide module and the light distribution control member may be disposed on one surface opposite to the light exit surface of the light source module.

상기 배광조절부재는 상기 광 출사면에 대향되는 일면 또는 타면에 배광조절패턴이 형성될 수 있다.The light distribution control member may have a light distribution control pattern formed on one surface or the other surface opposite to the light exit surface.

상기 광원모듈이 측면형 LED인 경우, 상기 광가이드모듈 및 상기 배광조절부재는 상기 광원모듈의 광 출사면의 측면에 배치될 수 있다.When the light source module is a side LED, the light guide module and the light distribution control member may be disposed on the side of the light exit surface of the light source module.

상기 광가이드모듈은 상기 광원모듈을 수용하는 수용홈이 형성될 수 있다.The light guide module may be formed with a receiving groove accommodating the light source module.

상기 수용홈은 상기 광원모듈의 광 출사면에 대향되는 내측면이 곡률형상을 가지도록 형성될 수 있다.The receiving groove may be formed such that an inner surface facing the light exit surface of the light source module has a curvature shape.

상기 수용홈은 상기 내측면에 제4 배광조절패턴이 형성될 수 있다.
A fourth light distribution control pattern may be formed on the inner surface of the receiving groove.

본 발명의 일실시예에 따르면, 광가이드모듈의 일면에 배광조절패턴이 형성된 배광조절부재를 구비함으로써, 광원모듈로부터 출사된 광을 자유롭게 조절할 수 있다. According to an embodiment of the present invention, by providing a light distribution control member having a light distribution control pattern formed on one surface of the light guide module, light emitted from the light source module can be freely controlled.

본 발명의 일실시예에 따르면, 음각구조의 다각뿔패턴으로 배광조절패턴을 형성함으로써, 상기 다각뿔패턴의 하부 경사각의 각도를 조절하여 배광을 조절할 수 있다. According to an embodiment of the present invention, by forming a light distribution control pattern with a polygonal pyramid pattern of an intaglio structure, light distribution can be controlled by adjusting an angle of a lower inclination angle of the polygonal pyramid pattern.

본 발명의 일실시예에 따르면, 광가이드모듈을 사이에 두고 형성되는 배광조절부재와 반사판에 대해서 각각 다른 배광조절패턴을 형성함으로써, 상기 광가이드모듈, 상기 배광조절부재, 상기 반사판 중 어느 하나를 이용하여 용이하게 배광을 조절할 수 있다. According to an embodiment of the present invention, by forming different light distribution control patterns for the light distribution control member and the reflection plate formed with the light guide module therebetween, any one of the light guide module, the light distribution control member, and the reflection plate Light distribution can be easily controlled by using.

본 발명의 일실시예에 따르면, 광가이드모듈 내 수용홈을 형성하고, 상기 수용홈의 내측면이 곡률형상을 갖도록 형성하거나, 상기 내측면에 제4 배광조절패턴을 형성함으로써, 광원모듈로부터 출사된 광의 반사율을 높이고, 광 분포도를 조절할 수 있다.
According to an embodiment of the present invention, by forming a receiving groove in the light guide module, and forming the inner surface of the receiving groove to have a curvature shape, or by forming a fourth light distribution control pattern on the inner surface, it exits from the light source module It is possible to increase the reflectance of the light and adjust the light distribution.

도 1은 종래기술에 따른 조명장치를 도시한 도면이다.
도 2는 본 발명의 일실시예에 따른 조명장치를 도시한 도면이다.
도 3은 본 발명의 다른 실시예에 따른 조명장치를 도시한 도면이다.
도 4는 본 발명의 일실시예에 따른 배광조절패턴을 형성하는 일례를 도시한 도면이다.
도 5는 본 발명의 일실시예에 따른 배광조절패턴의 각도에 따라 배광을 조절하는 일례를 도시한 도면이다.1 is a view showing a lighting device according to the prior art.
2 is a view showing a lighting device according to an embodiment of the present invention.
3 is a view showing a lighting device according to another embodiment of the present invention.
4 is a view showing an example of forming a light distribution control pattern according to an embodiment of the present invention.
5 is a view showing an example of adjusting the light distribution according to the angle of the light distribution control pattern according to an embodiment of the present invention.

이하에서는 첨부한 도면을 참조하여 본 발명에 따른 구성 및 작용을 구체적으로 설명한다. 첨부 도면을 참조하여 설명함에 있어, 도면 부호에 관계없이 동일한 구성요소는 동일한 참조부여를 부여하고, 이에 대한 중복설명은 생략하기로 한다. 제1, 제2 등의 용어는 다양한 구성요소들을 설명하는데 사용될 수 있지만, 상기 구성요소들은 상기 용어들에 의해 한정되어서는 안 된다. 상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다.Hereinafter, the configuration and operation according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and duplicate description thereof will be omitted. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

도 2는 본 발명의 일실시예에 따른 조명장치를 도시한 도면이다.2 is a view showing a lighting device according to an embodiment of the present invention.

도 2의 (a)를 참고하면, 조명장치는 인쇄회로기판(10)에 실장되는 광원모듈(20), 광원모듈(20)로부터 출사되는 광을 전달하는 광가이드모듈(40), 및 광가이드모듈(40)의 일면에 배치되어, 제1 배광조절패턴이 형성되는 배광조절부재(30)를 포함한다. 여기서, 광원모듈(20)은 직하형(Top view type) LED(Light Emitting Diode)이고, 광가이드모듈(40) 및 배광조절부재(30)는 광원모듈(20)의 광 출사면과 대향되는 일면에 배치될 수 있다. 여기서, 배광조절부재(30)는 확산판(Diffuser Plate)을 구성하는 부재로 만들어질 수 있다.Referring to (a) of FIG. 2, the lighting device is a light source module 20 mounted on a printed circuit board 10, a light guide module 40 for transmitting light emitted from the light source module 20, and a light guide It is disposed on one surface of the module 40, and includes a light distribution control member 30 on which a first light distribution control pattern is formed. Here, the light source module 20 is a direct view (Top view type) LED (Light Emitting Diode), the light guide module 40 and the light distribution control member 30 is one surface facing the light exit surface of the light source module 20 Can be placed on. Here, the light distribution control member 30 may be made of a member constituting the diffuser plate.

실시예로, 상기 제1 배광조절패턴은 음각구조의 다각뿔패턴으로 형성될 수 있다. 예컨대, 상기 다각뿔패턴의 하부 경사각은 30 ~ 120 도의 값을 가지도록 형성될 수 있다. 만약, 상기 하부 경사각이 30도보다 낮은 경우, 상기 제1 배광조절패턴을 형성하기 어렵고, 상기 하부 경사각이 120도보다 높은 경우, 상기 제1 배광조절패턴을 통해 배광을 조절하는데 아무런 효과가 없다.In an embodiment, the first light distribution control pattern may be formed of a polygonal pyramid pattern having an intaglio structure. For example, the lower inclination angle of the polygonal pyramid pattern may be formed to have a value of 30 to 120 degrees. If the lower inclination angle is lower than 30 degrees, it is difficult to form the first light distribution control pattern, and when the lower inclination angle is higher than 120 degrees, there is no effect in controlling light distribution through the first light distribution adjustment pattern.

도 4는 본 발명의 일실시예에 따른 배광조절패턴을 형성하는 일례를 도시한 도면이다.4 is a view showing an example of forming a light distribution control pattern according to an embodiment of the present invention.

도 4를 참고하면, 제1 배광조절패턴은 원하는 모양, 크기, 각도 등을 결정하여 액추에이터(Actuator)의 팁(tip, 뽀죡한 부분)을 상하, 또는 좌우로 조절함으로써, 배광조절부재(30)에 형성할 수 있다. 팁(tip)은 금속재질 또는 다이아몬드로 구성될 수 있다. 배광조절부재(30)에 상기 제1 배광조절패턴을 형성하는 방법은 배광조절부재(30)에 직접 상기 제1 배광조절패턴을 가공하거나, 금형에 상기 제1 배광조절패턴에 대응되는 패턴을 가공하여 사출한 후, 핫 프레스(hot press) 공정을 통해 배광조절부재(30) 상에 상기 제1 배광조절패턴을 형성할 수 있다.Referring to FIG. 4, the first light distribution control pattern determines a desired shape, size, angle, and the like, and adjusts a tip of a actuator (a sharp part) up, down, or left and right to adjust the light distribution member 30. Can be formed on. The tip may be made of metal or diamond. The method of forming the first light distribution control pattern on the light distribution control member 30 is to process the first light distribution control pattern directly on the light distribution control member 30 or to process a pattern corresponding to the first light distribution control pattern on a mold. After the injection, the first light distribution control pattern may be formed on the light distribution control member 30 through a hot press process.

금형은 사출 금형, 핫 프레스 스탬퍼(Stamper) 등 모든 성형 금형에 두루 적용할 수 있다. 또한, 금형은 평판이 아닌 곡면, 3차원 모양의 상기 제1 배광조절패턴을 형성하는데도 이용할 수 있다. 상기 제1 배광조절패턴은 플라스틱물질 또는 금속물질로 이루어진 기판 상에 형성될 수 있다. 상기 제1 배광조절패턴을 에칭으로 형성하는 경우, 주로 금속물질로 만든 팁이 이용된다.The mold can be applied to all molding molds such as injection molds and hot press stampers. Also, the mold can be used to form the first light distribution control pattern having a curved surface, not a three-dimensional shape, rather than a flat plate. The first light distribution control pattern may be formed on a substrate made of a plastic material or a metal material. When the first light distribution control pattern is formed by etching, a tip mainly made of a metal material is used.

도 2의 (b)를 참고하면, 광가이드모듈(40)은 배광조절부재(30)가 배치되는 일면 상에 상기 제2 배광조절패턴이 형성될 수 있다. 도 2의 (c)를 참고하면, 광가이드모듈(40)은 배광조절부재(30)가 배치되는 일면과 대향되는 타면 상에 상기 제2 배광조절패턴이 형성될 수 있다.Referring to (b) of FIG. 2, the light guide module 40 may have the second light distribution control pattern formed on one surface on which the light distribution control member 30 is disposed. Referring to (c) of FIG. 2, the light guide module 40 may be formed with the second light distribution control pattern on the other surface opposite to one surface on which the light distribution control member 30 is disposed.

이때, 배광 조절을 위해, 상기 제1 배광조절패턴의 음각구조와 상기 제2 배광조절패턴의 음각구조가 상호 상이하게 형성될 수 있다. 즉, 예컨대, 상기 제1 배광조절패턴의 음각구조가 형성된 부분과 상기 제2 배광조절패턴의 음각구조가 형성된 부분이 서로 엇갈리게 형성함으로써, 배광 효율을 높일 수 있다. 또는, 실시예에 따라, 상기 제1 배광조절패턴의 음각구조와 상기 제2 배광조절패턴의 음각구조가 상호 동일하게 형성될 수도 있다. 상기 제2 배광조절패턴은 상기 제1 배광조절패턴과 마찬가지로 음각구조의 다각뿔패턴으로 형성될 수 있으며, 상기 다각뿔패턴의 하부 경사각은 30 ~ 120 도의 값을 가지도록 형성될 수 있다.At this time, in order to control the light distribution, the intaglio structure of the first light distribution control pattern and the intaglio structure of the second light distribution control pattern may be formed differently from each other. That is, for example, a portion in which the intaglio structure of the first light distribution control pattern is formed and the portion in which the intaglio structure of the second light distribution control pattern is formed are alternately formed, thereby increasing light distribution efficiency. Alternatively, according to an embodiment, the intaglio structure of the first light distribution control pattern and the intaglio structure of the second light distribution control pattern may be formed to be the same. The second light distribution control pattern may be formed of a polygonal pyramid pattern having an intaglio structure similar to the first light distribution control pattern, and the lower inclination angle of the polygonal pyramid pattern may be formed to have a value of 30 to 120 degrees.

도 2의 (d)를 참고하면, 상기 조명장치는 광가이드모듈(40)의 상기 일면에 대향하는 타면에 반사판(50)을 더 포함할 수 있다. 실시예로, 반사판(50)은 제3 배광조절패턴이 형성될 수 있다. 배광 조절을 위해, 상기 제1 배광조절패턴의 음각구조와 상기 제3 배광조절패턴의 음각구조가 상호 상이하게 형성될 수 있다. 또는, 실시예에 따라, 상기 제1 배광조절패턴의 음각구조와 상기 제3 배광조절패턴의 음각구조가 상호 동일하게 형성될 수도 있다. 상기 제3 배광조절패턴은 상기 제1 배광조절패턴과 마찬가지로 음각구조의 다각뿔패턴으로 형성될 수 있으며, 상기 다각뿔패턴의 하부 경사각은 30 ~ 120 도의 값을 가지도록 형성될 수 있다.Referring to (d) of FIG. 2, the lighting device may further include a reflector 50 on the other surface opposite to the one surface of the light guide module 40. In an embodiment, the reflective plate 50 may have a third light distribution control pattern. For light distribution adjustment, the intaglio structure of the first light distribution control pattern and the intaglio structure of the third light distribution control pattern may be formed differently. Alternatively, according to an embodiment, the intaglio structure of the first light distribution control pattern and the intaglio structure of the third light distribution control pattern may be formed to be identical to each other. The third light distribution control pattern may be formed of a polygonal pyramid pattern having an intaglio structure similar to the first light distribution control pattern, and the lower inclination angle of the polygonal pyramid pattern may be formed to have a value of 30 to 120 degrees.

도 3은 본 발명의 다른 실시예에 따른 조명장치를 도시한 도면이다.3 is a view showing a lighting device according to another embodiment of the present invention.

도 3의 (a)를 참고하면, 조명장치는 인쇄회로기판(10)에 측면형(Side view type) LED가 광원모듈(20)로 실장되고, 광원모듈(20)의 광 출사면의 측면에 광가이드모듈(40) 및 광가이드모듈(40)의 일면에 배광조절부재(30)가 배치될 수 있다. 광가이드모듈(40)에 제2 배광조절패턴이 형성되어, 광원모듈(20)로부터 출사된 광이 광가이드모듈 내 제2 배광조절패턴에 의해 광가이드모듈(40)의 상부로 유도됨으로써, 상기 제2 배광조절패턴을 통해 광의 분포도를 조절할 수 있다. 여기서, 배광조절부재(30)는 확산판(Diffuser Plate)을 구성하는 부재로 만들어질 수 있다.Referring to Figure 3 (a), the lighting device is a side view (Side view type) LED is mounted on the printed circuit board 10 as a light source module 20, on the side of the light exit surface of the light source module 20 The light guide module 40 and the light distribution control member 30 may be disposed on one surface of the light guide module 40. The second light distribution control pattern is formed on the light guide module 40, and the light emitted from the light source module 20 is guided to the upper part of the light guide module 40 by the second light distribution control pattern in the light guide module, thereby The distribution of light can be adjusted through the second light distribution control pattern. Here, the light distribution control member 30 may be made of a member constituting the diffuser plate.

도 3의 (b)를 참고하면, 광가이드모듈(40)에 제2 배광조절패턴이 형성되고, 배광조절부재(30)에 제1 배광조절패턴이 형성됨으로써, 광원모듈(20)로부터 출사된 광이 상기 제1 배광조절패턴과 상기 제2 배광조절패턴에 의해 광가이드모듈(40) 및 배광조절부재(30)의 상부로 광이 나갈 수 있게 된다. 이때, 상기 제1 배광조절패턴의 음각구조와 상기 제2 배광조절패턴의 음각구조가 상호 동일하거나, 상이하게 형성되어 배광이 조절될 수 있다.Referring to (b) of FIG. 3, the second light distribution control pattern is formed on the light guide module 40, and the first light distribution control pattern is formed on the light distribution control member 30 to be emitted from the light source module 20. Light can be emitted to the upper portion of the light guide module 40 and the light control member 30 by the first light control pattern and the second light control pattern. At this time, the intaglio structure of the first light distribution control pattern and the intaglio structure of the second light distribution control pattern may be the same or differently formed, and light distribution may be adjusted.

도 3의 (c)를 참고하면, 조명장치는 인쇄회로기판(10)에 측면형 LED가 광원모듈(20)로 실장되고, 광원모듈(20)의 광 출사면의 측면에 광가이드모듈(40) 및 광가이드모듈(40)의 타면에 반사판(50)이 배치될 수 있다. 즉, 상기 조명장치는 배광조절부재(30) 대신에 반사판(50)이 배치되어, 광가이드모듈(40)의 일면과 상기 타면에 모두 제2 배광조절패턴이 형성될 수 있다.Referring to FIG. 3 (c), the lighting device is mounted with a side-type LED on the printed circuit board 10 as a light source module 20, and a light guide module 40 on the side of the light exit surface of the light source module 20. ) And the reflective plate 50 may be disposed on the other surface of the light guide module 40. That is, in the lighting device, a reflecting plate 50 is disposed instead of the light distribution control member 30, so that a second light distribution control pattern may be formed on both one surface and the other surface of the light guide module 40.

도 3의 (d)를 참고하면, 조명장치는 인쇄회로기판(10)에 측면형 LED가 광원모듈(20)로 실장되고, 광원모듈(20)의 광 출사면의 측면에 광가이드모듈(40) 및 광가이드모듈(40)의 타면에 반사판(50)이 배치될 수 있다. 이때, 광가이드모듈(40)에는 광원모듈(20)을 수용하는 수용홈(60)이 형성될 수 있다. 수용홈(60)은 광원모듈(20)의 광 출사면에 대향되는 내측면이 곡률형상을 가지도록 형성될 수 있다. 실시예에 따라, 수용홈(60)의 상기 내측면에는 제4 배광조절패턴이 형성될 수 있다. 상기 제4 배광조절패턴은 상기 제1 배광조절패턴 내지 상기 제3 배광조절패턴과 마찬가지로, 음각구조의 다각뿔패턴으로 형성될 수 있으며, 상기 다각뿔패턴의 하부 경사각은 30 ~ 120 도의 값을 가지도록 형성될 수 있다.Referring to (d) of FIG. 3, in the lighting device, a side-type LED is mounted on the printed circuit board 10 as a light source module 20, and a light guide module 40 is provided on the side of the light exit surface of the light source module 20. ) And the reflective plate 50 may be disposed on the other surface of the light guide module 40. At this time, the light guide module 40 may be formed with a receiving groove 60 for receiving the light source module 20. The receiving groove 60 may be formed such that an inner surface facing the light exit surface of the light source module 20 has a curvature shape. According to an embodiment, a fourth light distribution control pattern may be formed on the inner surface of the receiving groove 60. The fourth light distribution control pattern, like the first light distribution control pattern to the third light distribution control pattern, may be formed as a polygonal pyramid pattern having an intaglio structure, and the lower inclination angle of the polygonal pyramid pattern is formed to have a value of 30 to 120 degrees. Can be.

따라서, 광가이드모듈(40) 내 형성된 수용홈(60)의 내측면이 곡률형상을 갖도록 형성하거나, 수용홈의 내측면(60)에 제4 배광조절패턴을 형성함으로써, 광원모듈(20)로부터 출사된 광의 반사율을 높이고, 광 분포도를 조절할 수 있다.Therefore, the inner surface of the receiving groove 60 formed in the optical guide module 40 has a curvature shape, or by forming a fourth light distribution control pattern on the inner surface 60 of the receiving groove, from the light source module 20 It is possible to increase the reflectance of the emitted light and adjust the light distribution.

이러한, 본 발명의 조명장치는 광원모듈의 종류와 상관없이 어떤 종류의 광원모듈에 대해서도 배광조절패턴이 형성된 배광조절부재를 구비함으로써, 자유롭게 배광을 조절할 수 있다.The lighting device of the present invention can freely control light distribution by providing a light distribution control member having a light distribution control pattern for any type of light source module regardless of the type of the light source module.

도 5는 본 발명의 일실시예에 따른 배광조절패턴의 각도에 따라 배광을 조절하는 일례를 도시한 도면이다.5 is a view showing an example of adjusting the light distribution according to the angle of the light distribution control pattern according to an embodiment of the present invention.

도 5의 (a)를 참고하면, 조명장치에 측면형 LED인 광원모듈(20)이 구비된 경우, 광원모듈(20)의 광 출사면의 측면에 광가이드모듈(40) 및 반사판(50)을 구비할 수 있다. 상기 조명장치는 광가이드모듈(40)에 제2 배광조절패턴을 형성하여, 제2 배광조절패턴에 의해 배광을 조절할 수 있다. 배광 변화를 알아보기 위해, 광가이드모듈(4) 내에 광원모듈(20)로부터의 거리에 따라 배광 변화를 측정할 수 있다.Referring to (a) of FIG. 5, when the light source module 20, which is a side-type LED, is provided in the lighting device, the light guide module 40 and the reflector 50 are provided on the side of the light exit surface of the light source module 20. It may be provided. The lighting device may form a second light distribution control pattern on the light guide module 40 to control light distribution by the second light distribution control pattern. In order to check the light distribution change, the light distribution change can be measured according to the distance from the light source module 20 in the light guide module 4.

도 5의 (b)에서는 음각구조의 다각뿔패턴이 형성된 제2 배광조절패턴에서, 상기 다각뿔패턴의 하부 경사각이 90도인 경우와 105도인 경우에 휘도 변화를 나타낸 것이다. 이로써, 광원모듈(20)로부터 멀어질수록 제2 배광조절패턴의 하부 경사각에 따라 휘도가 높은 것을 알 수 있다. In (b) of FIG. 5, in the second light distribution control pattern in which the polygonal pyramid pattern of the intaglio structure is formed, the luminance change occurs when the lower inclination angle of the polygonal pyramid pattern is 90 degrees and 105 degrees. Accordingly, it can be seen that the farther away from the light source module 20, the higher the luminance according to the lower inclination angle of the second light distribution control pattern.

따라서, 본 발명에서는 제2 배광조절패턴의 하부 경사각을 조절함으로써, 배광을 조절할 수 있다.Therefore, in the present invention, the light distribution can be adjusted by adjusting the lower inclination angle of the second light distribution control pattern.

전술한 바와 같은 본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하였다. 그러나 본 발명의 범주에서 벗어나지 않는 한도 내에서는 여러 가지 변형이 가능하다. 본 발명의 기술적 사상은 본 발명의 기술한 실시예에 국한되어 정해져서는 안 되며, 특허청구범위뿐만 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.
In the detailed description of the present invention as described above, specific embodiments have been described. However, various modifications are possible without departing from the scope of the present invention. The technical spirit of the present invention should not be limited to the described embodiments of the present invention, and should be determined not only by the claims, but also by the claims and equivalents.

100: 조명장치
10: 인쇄회로기판 20: 광원모듈
30: 배광조절부재 40: 광가이드모듈
50: 반사판 60: 수용홈100: lighting device
10: Printed circuit board 20: Light source module
30: light distribution control member 40: light guide module
50: reflector 60: receiving groove

Claims (15)

반사판;
상기 반사판 상에 배치되는 광가이드모듈;
인쇄회로기판 상에 배치되어 상기 광가이드모듈의 측면으로 광을 출사하며 상기 광가이드모듈 내의 일측에 형성된 수용홈에 배치된 광원 모듈; 및
상기 광가이드모듈 상면에 배치되는 배광조절부재를 포함하고,
상기 배광조절부재는 상기 광가이드모듈에 대향하는 면의 반대면에 형성되는 제1 배광조절패턴을 포함하고,
상기 반사판은 상기 반사판의 상면에 형성된 제3 배광조절패턴을 포함하고,
상기 수용홈은 상기 광원모듈의 광 출사면에 대향되는 내측면에 형성되는 제4 배광조절패턴을 포함하는 조명장치.Reflector;
An optical guide module disposed on the reflector;
A light source module disposed on a printed circuit board to emit light to the side of the optical guide module and disposed in a receiving groove formed at one side of the optical guide module; And
It includes a light distribution control member disposed on the upper surface of the light guide module,
The light distribution control member includes a first light distribution control pattern formed on the opposite surface of the surface opposite to the light guide module,
The reflective plate includes a third light distribution control pattern formed on the upper surface of the reflective plate,
The receiving groove is a lighting device including a fourth light distribution control pattern formed on the inner surface opposite to the light exit surface of the light source module. 제1항에 있어서,
상기 제1 배광조절패턴은 하부 경사각이 30 ~ 120도의 값을 가지는 음각구조의 다각뿔패턴인 조명장치.According to claim 1,
The first light distribution control pattern is a lighting device having a polygonal pyramid pattern with an intaglio structure having a lower inclination angle of 30 to 120 degrees. 삭제delete 제1항에 있어서,
상기 광가이드모듈은 상기 배광조절부재와 대향하는 면에 형성되는 제2배광조절패턴을 포함하는 조명장치.According to claim 1,
The light guide module is a lighting device including a second light control pattern formed on a surface facing the light control member. 제4항에 있어서,
상기 제1 배광조절패턴의 음각구조와 상기 제2 배광조절패턴의 음각구조가 서로 엇갈리게 배치되고,
상기 제1 배광조절패턴과 상기 제2배광조절패턴은 상기 인쇄회로기판의 상면에 수직 방향으로 중첩되지 않게 배치되는 조명장치.According to claim 4,
The intaglio structure of the first light distribution control pattern and the intaglio structure of the second light distribution control pattern are alternately arranged,
The first light control pattern and the second light control pattern is a lighting device that is arranged so as not to overlap in the vertical direction on the upper surface of the printed circuit board. 삭제delete 제4항에 있어서,
상기 제1 배광조절패턴 내지 상기 제4배광조절패턴은 음각구조의 다각뿔 패턴으로 형성되며 상기 다각뿔 패턴의 하부 경사각은 30도 내지 120도인 조명장치.According to claim 4,
The first light control pattern to the fourth light control pattern is formed in a polygonal pyramid pattern of the intaglio structure, the lower angle of inclination of the polygonal pattern is 30 to 120 degrees. 제1항에 있어서,
상기 제1 배광조절패턴의 음각구조와 상기 제3 배광조절패턴의 음각구조가 서로 엇갈리게 배치되는 조명장치.According to claim 1,
An illumination device in which the intaglio structure of the first light distribution control pattern and the intaglio structure of the third light distribution control pattern are alternately arranged. 삭제delete 제8항에 있어서,
상기 광원모듈은 측면형 LED를 포함하는 조명장치.The method of claim 8,
The light source module is a lighting device comprising a side-type LED. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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