KR101372863B1 - Light distribution lens for led lamp - Google Patents

Light distribution lens for led lamp Download PDF

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Publication number
KR101372863B1
KR101372863B1 KR1020120057736A KR20120057736A KR101372863B1 KR 101372863 B1 KR101372863 B1 KR 101372863B1 KR 1020120057736 A KR1020120057736 A KR 1020120057736A KR 20120057736 A KR20120057736 A KR 20120057736A KR 101372863 B1 KR101372863 B1 KR 101372863B1
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South Korea
Prior art keywords
light distribution
led
light
distribution lens
base plate
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KR1020120057736A
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Korean (ko)
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KR20130134307A (en
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홍환영
오지훈
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(주)아스트로
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    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

본 발명은 엘이디 조명용 배광 렌즈에 관한 것으로, 보다 상세하게는 광원인 LED와 독립적으로 배광 렌즈를 구비하여 제작 및 유지보수가 용이하고, 상기 배광 렌즈가 빛의 배광 특성을 향상시킴과 동시에 광원인 LED를 보호함으로써 LED 조명을 방폭등의 용도로도 활용할 수 있으며, 피라미드형 돌기를 통해 배광 범위가 넓고, 우수한 균제도 특성을 갖으며, 눈부심을 해소할 수 있는 엘이디 조명용 배광 렌즈에 관한 것이다.
본 발명에 따른 엘이디 조명용 배광 렌즈는, 빛이 투과되는 소재로 이루어져 엘이디 조명에서 조사되는 빛을 배광하는 엘이디 조명용 배광 렌즈에 있어서, 상기 엘이디 조명의 전방에 배치되는 평판형의 베이스판과, 상기 베이스판의 전면에 전방을 향하여 폭이 점차적으로 좁아지는 사각뿔대 형상의 피라미드형 돌기가 구비되되, 상기 피라미드형 돌기는, 복수개가 상기 베이스판의 전면에 격자 패턴으로 배열된 것을 특징으로 한다.The present invention relates to a light distribution lens for LED lighting, and more particularly, is provided with a light distribution lens independent of the LED light source, and is easy to manufacture and maintain, and the light distribution lens improves the light distribution characteristics of the light and at the same time the LED light source. By protecting the LED light can also be used as an explosion-proof lamp, the light distribution range is wide through the pyramid-shaped projections, has excellent uniformity characteristics, and relates to a light distribution lens for LED lighting that can eliminate glare.
In the LED lighting light distribution lens according to the present invention, the LED light distribution lens made of a material that transmits light to distribute the light irradiated from the LED lighting, the flat base plate disposed in front of the LED lighting, and the base The front surface of the plate is provided with a pyramidal projection of a square pyramid shape gradually narrowing in the forward direction, the pyramidal projection is characterized in that the plurality is arranged in a grid pattern on the front of the base plate.

Description

엘이디 조명용 배광 렌즈{LIGHT DISTRIBUTION LENS FOR LED LAMP}Light distribution lens for LED lighting {LIGHT DISTRIBUTION LENS FOR LED LAMP}

본 발명은 엘이디 조명용 배광 렌즈에 관한 것으로, 보다 상세하게는 광원인 LED와 독립적으로 배광 렌즈를 구비하여 제작 및 유지보수가 용이하고, 상기 배광 렌즈가 빛의 배광 특성을 향상시킴과 동시에 광원인 LED를 보호함으로써 LED 조명을 방폭등의 용도로도 활용할 수 있으며, 피라미드형 돌기를 통해 배광 범위가 넓어지고, 우수한 균제도 특성을 갖으며, 눈부심을 해소할 수 있는 엘이디 조명용 배광 렌즈에 관한 것이다.The present invention relates to a light distribution lens for LED lighting, and more particularly, is provided with a light distribution lens independent of the LED light source, and is easy to manufacture and maintain, the light distribution lens improves the light distribution characteristics of the light and at the same time the LED light source By protecting the LED lighting can also be used for explosion-proof lamps, the light distribution range is widened through the pyramid projection, has excellent uniformity characteristics, and relates to the LED light distribution lens that can eliminate glare.

LED는 저전력, 긴 수명, 고휘도, 빠른 응답, 친환경적인 특성의 장점을 갖고 있어 LED TV, 휴대폰, 의료기기용의 광원, 교통신호 및 조명 분야에 폭넓게 사용되고 있다. LEDs are widely used in LED TVs, cell phones, light sources for medical devices, traffic signals and lighting due to their low power, long life, high brightness, fast response and eco-friendly features.

특히, 이러한 LED 광원을 평판에 배열한 구조의 LED 조명은 복수의 LED를 평면상에 배열하여 제작되는데, 이러한 LED 조명은 점광원이면서 직진성을 갖는 LED가 배열된 구조이기 때문에 배광 범위가 좁고, 배광 범위 내에서도 위치에 따라 조도에 차이가 있으며, 눈부심이 발생되는 문제점이 있었다.In particular, LED lighting having a structure in which such an LED light source is arranged on a flat plate is manufactured by arranging a plurality of LEDs on a flat surface. Since the LED lighting is a point light source and a structure in which LEDs having straightness are arranged, the light distribution range is narrow and light distribution is provided. Even within the range there is a difference in illuminance depending on the location, there was a problem that glare occurs.

상기와 같은 LED 조명의 문제점을 해결하고자, 최근에는 각각의 LED에 반구형의 확산캡을 부착하여 LED에서 조사되는 빛을 확산시키는 기술이 제안되고 있으나, 이러한 LED 조명은 LED와 확산캡이 일체로 구성되어 있어 제조 비용은 물론, 유지 및 보수 비용이 상승하는 단점이 있고, 기하학적으로 확산캡을 반구형으로 제작하여야 하는 한계로 인해 균제도 등 배광되는 빛의 특성을 향상시키는 데에 한계가 있었다.In order to solve the problems of the LED lighting as described above, a technique for spreading the light emitted from the LED by attaching a hemispherical diffusion cap to each LED has recently been proposed, but such LED lighting is composed of the LED and the diffusion cap integrally As a result, manufacturing costs, as well as maintenance and repair costs increase, there is a limitation in improving the characteristics of the light distribution, such as the uniformity due to the limitation of the geometrically produced diffusion caps hemispherical.

본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 투과되는 빛의 효과적인 배광을 통해 배광 범위가 넓고, 우수한 균제도 특성을 갖으면서도 눈부심을 해소할 수 있는 엘이디 조명용 배광 렌즈를 제공하는 데에 있다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is a wide LED range through the effective light distribution of the transmitted light, for LED lighting that can eliminate glare while having excellent leveling properties It is to provide a light distribution lens.

상기와 같은 목적을 달성하고자 본 발명에 따른 엘이디 조명용 배광 렌즈는, 빛이 투과되는 소재로 이루어져 엘이디 조명에서 조사되는 빛을 배광하는 엘이디 조명용 배광 렌즈에 있어서, 상기 엘이디 조명의 전방에 배치되는 평판형의 베이스판과, 상기 베이스판의 전면에 전방을 향하여 폭이 점차적으로 좁아지는 사각뿔대 형상의 피라미드형 돌기가 구비되되, 상기 피라미드형 돌기는, 복수개가 상기 베이스판의 전면에 격자 패턴으로 배열된 것을 특징으로 한다.LED illumination light distribution lens according to the present invention to achieve the above object, in the LED illumination light distribution lens made of a material that transmits light to distribute the light irradiated from the LED light, the flat type disposed in front of the LED light And a pyramidal protrusion having a square pyramid shape, the width of which is gradually narrowed toward the front in front of the base plate, wherein the plurality of pyramidal protrusions are arranged in a lattice pattern on the front of the base plate. It is characterized by.

또한, 본 발명에 따른 엘이디 조명용 배광 렌즈는, 상기 피라미드형 돌기는, 상기 베이스판에 밀착된 밑변과 상기 베이스판에서 전방으로 경사지게 돌출되는 측변이 이루는 경사각이 46.5° ~ 47.5°로 형성된 것을 특징으로 한다.In addition, the LED illumination light distribution lens according to the present invention, the pyramid-shaped projection, characterized in that the inclination angle formed by the side that is inclined forwardly inclined forward from the base plate in close contact with the base plate is formed of 46.5 ° ~ 47.5 °. do.

또한, 본 발명에 따른 엘이디 조명용 배광 렌즈는, 상기 피라미드형 돌기는, 상기 밑변의 길이가 1.0㎜ ~ 1.3㎜로 형성된 것을 특징으로 한다.In addition, the LED illumination light distribution lens according to the present invention, the pyramidal projections, characterized in that the base length is formed in 1.0mm ~ 1.3mm.

상기와 같은 구성에 의하여 본 발명에 따른 엘이디 조명용 배광 렌즈는 광원인 LED와 독립적으로 배광 렌즈를 구비하여 제작 및 유지보수가 용이하고, 상기 배광 렌즈가 빛의 배광 특성을 향상시킴과 동시에 광원인 LED를 보호함으로써 LED 조명을 방폭등의 용도로도 활용할 수 있으며, 특히 피라미드형 돌기의 특정 경사각 범위 및 밑변의 길이 범위에서 현저한 배광 특성을 갖는 장점이 있다.According to the above configuration, the LED light distribution lens according to the present invention is provided with a light distribution lens independently of the LED light source, and is easy to manufacture and maintain. The light distribution lens improves light distribution characteristics of the light and at the same time, the LED light source. By protecting the LED lighting can also be utilized for the purpose of explosion-proof lamps, in particular, there is an advantage that has a significant light distribution characteristics in the specific inclination angle range and the length of the base of the pyramidal projections.

도 1은 본 발명의 일실시예에 따른 엘이디 조명용 배광 렌즈의 사시도
도 2는 본 발명의 일실시예에 따른 피라미드형 렌즈의 사시도
도 3a 내지 도 3k는 본 발명의 일실시예에 따른 피라미드형 돌기의 밑변의 길이(B)가 고정된 상태에서 경사각(A)에 따른 배광분포를 나타낸 분포도
도 4a 내지 4j는 본 발명의 일실시예에 따른 피라미드형 돌기의 경사각(A)이 고정된 상태에서 밑변의 길이(B)에 따른 배광분포를 나타낸 분포도1 is a perspective view of a light distribution lens for LED lighting according to an embodiment of the present invention
2 is a perspective view of a pyramid-shaped lens according to an embodiment of the present invention
3A to 3K are distribution charts showing a light distribution according to an inclination angle A in a state in which a length B of a base of a pyramidal protrusion is fixed according to an embodiment of the present invention.
Figure 4a to 4j is a distribution diagram showing the distribution according to the length (B) of the base side in the inclined angle (A) of the pyramidal protrusion according to an embodiment of the present invention fixed

이하에서는 도면에 도시된 실시예를 참조하여 본 발명에 따른 엘이디 조명용 배광 렌즈를 보다 상세하게 설명하기로 한다.Hereinafter, a light distribution lens for LED lighting according to the present invention will be described in more detail with reference to the embodiment shown in the drawings.

도 1은 본 발명의 일실시예에 따른 엘이디 조명용 배광 렌즈의 사시도이고, 도 2는 본 발명의 일실시예에 따른 피라미드형 렌즈의 사시도이며, 도 3a 내지 도 3k는 본 발명의 일실시예에 따른 피라미드형 돌기의 밑변의 길이(B)가 고정된 상태에서 경사각(A)에 따른 배광분포를 나타낸 분포도이고, 도 4a 내지 4j는 본 발명의 일실시예에 따른 피라미드형 돌기의 경사각(A)이 고정된 상태에서 밑변의 길이(B)에 따른 배광분포를 나타낸 분포도이다.1 is a perspective view of a light distribution lens for LED lighting according to an embodiment of the present invention, Figure 2 is a perspective view of a pyramidal lens according to an embodiment of the present invention, Figures 3a to 3k is an embodiment of the present invention FIG. 4A to FIG. 4J are distribution charts showing light distributions according to an inclination angle A in a state in which the length B of the pyramidal protrusions is fixed, and FIGS. 4A to 4J are inclination angles A of the pyramidal protrusions It is a distribution chart showing the distribution of light distribution along the length B of the base in this fixed state.

도면을 살펴보면, 본 발명의 일실시예에 따른 엘이디 조명용 배광 렌즈는 아크릴, 폴리카보네이트 등과 같이 빛이 투과되는 소재로 이루어져 엘이디(L) 조명에서 조사되는 빛을 배광하는 구성으로 베이스판(10)과, 피라미드형 돌기(20)를 포함하여 구성된다.Looking at the drawings, LED light distribution lens according to an embodiment of the present invention is made of a material that transmits light, such as acrylic, polycarbonate and the like to the light emitted from the LED (L) illumination light distribution base plate 10 and , Pyramidal protrusion 20 is configured to include.

상기 베이스판(10)은 평판형으로 형성되어 상기 엘이디(L) 조명의 전방에 배치되는데, 상기 엘이디(L) 조명을 외부의 충격 등으로부터 보호하기 위한 커버의 역할을 함과 동시에 상기 피라미드형 돌기(20)가 구비되기 위한 베이스의 역할을 하는 구성이다.The base plate 10 is formed in a flat plate shape is disposed in front of the LED (L) illumination, while serving as a cover for protecting the LED (L) illumination from external impact, etc. at the same time the pyramidal projection It is the structure which functions as a base for providing 20.

즉, 본 발명에서는 상기 엘이디(L) 조명과 독립적으로 상기 베이스판(10)이 구비되고, 그 베이스판(10)에 빛의 배광을 위한 상기 피라미드형 돌기(20)가 구비됨으로써 엘이디(L) 조명은 물론 배광 렌즈의 제작 및 유지보수가 용이하고, 상기 베이스판(10)이 상기 엘이디(L) 조명을 보호할 수 있게 되어 방폭등의 용도로도 활용할 수 있게 되는 것이다.That is, in the present invention, the base plate 10 is provided independently of the LED lighting, and the base plate 10 is provided with the pyramidal protrusions 20 for light distribution of the LEDs L. As well as lighting, the light distribution lens can be easily manufactured and maintained, and the base plate 10 can protect the LED (L) illumination, so that it can be used for explosion-proof lighting.

상기 피라미드형 돌기(20)는 상기 엘이디(L) 조명에서 조사되는 빛을 배광하는 구성으로 상기 베이스판(10)의 전면에 전방을 향하여 폭이 점차적으로 좁아지는 사각뿔대 형상으로 구비되는데, 본 발명의 일실시예에서는 도 1에 도시된 바와 같이 복수개가 상기 베이스판(10)의 전면에 격자 패턴으로 배열된다.The pyramid-shaped protrusion 20 is provided in a square pyramid shape in which the width gradually narrows toward the front of the base plate 10 in a configuration for distributing light emitted from the LED (L) illumination, the present invention In the exemplary embodiment of the present invention, as shown in FIG. 1, the plurality is arranged in a lattice pattern on the front surface of the base plate 10.

상기 피라미드형 돌기(20)는 밑면이 사각형인 사각뿔을 그 밑면에 평행하는 평면으로 잘라 꼭짓점이 있는 부분을 없애고 남은 부분으로 이루어진 입체 형상으로 형성되는데, 본 발명의 일실시예에서 상기 피라미드형 돌기(20)의 변수는 상기 베이스판(10)에 밀착된 밑변(21)과 상기 베이스판(10)에서 전방으로 경사지게 돌출되는 측변(22)이 이루는 경사각(A)과, 상기 밑변(21)의 길이(B)로 하였다.The pyramidal protrusion 20 is formed in a three-dimensional shape consisting of the remaining portions by cutting a square pyramid having a square bottom surface in a plane parallel to the bottom surface and removing the portion having a vertex, in one embodiment of the present invention The variable of 20 is an inclination angle A formed by the base 21 in close contact with the base plate 10 and the side edge 22 protruding obliquely forward from the base plate 10, and the length of the base 21. It was set as (B).

도 3a 내지 도 3k는 상기 피라미드형 돌기(20)의 밑변(21)의 길이(B)가 2㎜고정된 상태에서 상기 경사각(A)을 40° ~ 50°의 범위 내에서 변화시킨 배광분포를 도시하였다.3A to 3K are light distributions in which the inclination angle A is changed within a range of 40 ° to 50 ° in a state in which the length B of the base 21 of the pyramidal protrusion 20 is fixed at 2 mm. Shown.

도면을 살펴보면, 도 3c 내지 도 3i에 도시된 바와 같이 상기 경사각(A)이 46.5° ~ 47.5°의 범위에서는 그 주변 범위에 비해 급격하게 배광 범위가 넓어지고, 배광 분포 또한 균일하게 나타났으며, 그 중에서도 도 3f에 도시된 바와 같이 상기 경사각(A)이 47°에서 배광 특성이 가장 우수하게 나타남을 확인할 수 있었다. 3C to 3I, when the inclination angle A is in the range of 46.5 ° to 47.5 °, the light distribution range is wider than the peripheral range, and the light distribution is uniform. Among them, as shown in FIG. 3f, it was confirmed that the light distribution characteristic was most excellent at the inclination angle A of 47 °.

이에, 도 4a 내지 4j는 상기 피라미드형 돌기(20)의 경사각(A)을 배광 특성이 가장 우수한 47°로 고정한 상태에서 상기 피라미드형 돌기(20)의 밑변(21)의 길이(B)를 0.4㎜ ~ 2㎜의 범위 내에서 변화시킨 배광분포를 도시하였다.Thus, FIGS. 4A to 4J show the length B of the base 21 of the pyramidal protrusion 20 in a state where the inclination angle A of the pyramidal protrusion 20 is fixed at 47 ° having the best light distribution property. The light distribution distribution which changed in the range of mm-2mm was shown.

도면을 살펴보면, 도 4f 내지 도 4h에 도시된 바와 같이 상기 밑변(21)의 길이(B)가 1.0㎜ ~ 1.3㎜의 범위에서는 그 주변 범위에 비해 급격하게 배광 범위가 넓어지고, 배광 분포 또한 균일하게 나타났으며, 그 중에서도 도 4g에 도시된 바와 같이 상기 밑변(21)의 길이(B)가 1.2㎜인 경우 배광 특성이 가장 우수하게 나타남을 확인할 수 있었다.Referring to the drawings, as shown in FIGS. 4F to 4H, when the length B of the base 21 is in the range of 1.0 mm to 1.3 mm, the light distribution range is rapidly increased compared to the peripheral range, and the light distribution is also uniform. Among them, as shown in FIG. 4g, when the length B of the base 21 was 1.2 mm, it was confirmed that the light distribution characteristics were most excellent.

즉, 상기 피라미드형 돌기(20)는 상기 경사각(A)이 47°이고, 상기 밑변(21)의 길이(B)가 1.2㎜인 경우 배광 특성이 가장 우수하게 됨을 확인할 수 있는 것이다.That is, when the inclination angle A is 47 ° and the length B of the base 21 is 1.2 mm, the pyramidal protrusion 20 has the highest light distribution characteristics.

앞에서 설명되고 도면에 도시된 엘이디 조명용 배광 렌즈는 본 발명을 실시하기 위한 하나의 실시예에 불과하며, 본 발명의 기술적 사상을 한정하는 것으로 해석되어서는 안된다. 본 발명의 보호범위는 이하의 특허청구범위에 기재된 사항에 의해서만 정하여지며, 본 발명의 요지를 벗어남이 없이 개량 및 변경된 실시예는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 자명한 것인 한 본 발명의 보호범위에 속한다고 할 것이다.The light distribution lens for LED lighting described above and illustrated in the drawings is only one embodiment for implementing the present invention, and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the claims below, and the embodiments which have been improved and changed without departing from the gist of the present invention will be apparent to those skilled in the art. It will be said to belong to the protection scope of the present invention.

L LED
10 베이스판
20 피라미드형 돌기
21 밑변
22 측변
A 경사각
B 밑변의 길이L LED
10 base plate
20 pyramidal projections
21 base
22 side
A tilt angle
Length of base B

Claims (3)

빛이 투과되는 소재로 이루어져 엘이디 조명에서 조사되는 빛을 배광하는 엘이디 조명용 배광 렌즈에 있어서,
상기 엘이디 조명의 전방에 배치되는 평판형의 베이스판과, 상기 베이스판의 전면에 전방을 향하여 폭이 점차적으로 좁아지는 사각뿔대 형상의 피라미드형 돌기가 구비되되,
상기 피라미드형 돌기는, 복수개가 상기 베이스판의 전면에 격자 패턴으로 배열되고, 상기 베이스판에 밀착된 밑변과 상기 베이스판에서 전방으로 경사지게 돌출되는 측변이 이루는 경사각이 46.5° ~ 47.5°로 형성되며, 상기 밑변의 길이가 1.0㎜ ~ 1.3㎜로 형성된 것을 특징으로 하는 엘이디 조명용 배광 렌즈.In the LED illumination light distribution lens made of a material that transmits light to distribute the light emitted from the LED lighting,
The base plate of the flat plate disposed in front of the LED lighting and the front of the base plate is provided with a pyramidal projection of a rectangular pyramid shape that gradually narrows in width toward the front,
The pyramid-shaped protrusions are arranged in a lattice pattern on the front of the base plate, the inclination angle formed by the bottom side in close contact with the base plate and the side edge protruding obliquely forward from the base plate is formed of 46.5 ° ~ 47.5 ° Light distribution lens for LED illumination, characterized in that the length of the base is formed 1.0mm ~ 1.3mm. 삭제delete 삭제delete
KR1020120057736A 2012-05-30 2012-05-30 Light distribution lens for led lamp KR101372863B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100658164B1 (en) 2005-04-15 2006-12-15 한국생산기술연구원 Manufacturing method of slanted-pyramid microlens and it's application to Light Guide Plate
KR20090111584A (en) * 2008-04-22 2009-10-27 삼성전자주식회사 Display apparatus and lenticular sheet included therein
KR20100030909A (en) * 2008-09-11 2010-03-19 엘지디스플레이 주식회사 One-body multi optical sheet for liquid crystal display device
JP2010145976A (en) 2008-12-22 2010-07-01 Toyobo Co Ltd Optical filter for display screen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100658164B1 (en) 2005-04-15 2006-12-15 한국생산기술연구원 Manufacturing method of slanted-pyramid microlens and it's application to Light Guide Plate
KR20090111584A (en) * 2008-04-22 2009-10-27 삼성전자주식회사 Display apparatus and lenticular sheet included therein
KR20100030909A (en) * 2008-09-11 2010-03-19 엘지디스플레이 주식회사 One-body multi optical sheet for liquid crystal display device
JP2010145976A (en) 2008-12-22 2010-07-01 Toyobo Co Ltd Optical filter for display screen

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