WO2013015468A1 - 양면 조명용 led 렌즈와 led 모듈 및 이를 이용한 led 양면 조명장치 - Google Patents
양면 조명용 led 렌즈와 led 모듈 및 이를 이용한 led 양면 조명장치 Download PDFInfo
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- WO2013015468A1 WO2013015468A1 PCT/KR2011/005511 KR2011005511W WO2013015468A1 WO 2013015468 A1 WO2013015468 A1 WO 2013015468A1 KR 2011005511 W KR2011005511 W KR 2011005511W WO 2013015468 A1 WO2013015468 A1 WO 2013015468A1
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- led
- light
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- incident
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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
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
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- 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
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
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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
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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
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- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
- F21Y2113/00—Combination of light sources
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- 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]
Definitions
- the present invention relates to a double-sided illumination LED lens and LED module, and an LED double-sided illumination device using the same, and more particularly to a double-sided illumination LED lens and LED module and a LED double-sided illumination device using the same. will be.
- a light emitting diode is a semiconductor light emitting device that emits light when a current flows, and converts electrical energy into light energy by using a PN junction diode made of GaAs and GaN optical semiconductors.
- the range of light from these LEDs ranges from red (630 nm to 700 nm) to blue-violet (400 nm), including blue, green and white, and the LEDs have lower power consumption and higher efficiency than conventional lights such as incandescent bulbs and fluorescent lamps.
- the demand is continuously increasing because of the advantages such as long operating life.
- the application range of LED such as small lighting, automobile lighting, indoor lighting and outdoor signage or outdoor lighting of the mobile terminal is gradually expanding.
- the application range of the LED in the lighting sign is gradually expanding.
- FIG. 1 is a cross-sectional view of a double-sided lighting sign using a typical LED.
- the general LED 11 is irradiated with light only on the light emitting surface and no light is irradiated on the opposite side thereof. As shown in FIG. 1, the LED 11 and the diffusion plate ( 13) need to be deployed. Accordingly, there is a problem in that the configuration of the double-sided lighting signboard using the LED is complicated, and the number of LEDs used is increased.
- One object of the present invention is to provide an LED lens and an LED module for double-sided illumination and an LED double-sided illumination device using the same, which enables the LED to be illuminated in both directions facing each other.
- An incident part to which light is incident a first exit part corresponding to the incident part, and a part of the light exiting upward, a reflection part extending from the first exit part and reflecting a part of the light; It provides a LED lens for two-sided illumination facing the exit portion, including a second emission portion that the light reflected from the reflecting portion is emitted downward, the light diffusing agent is dispersed therein.
- the incidence part may have a vertex formed concave in the incident direction of the light and an inclined surface extending by forming curved portions in both sides of the vertex.
- the stepped part may be further formed to extend from the inclined surface to extend.
- the light diffusing agent may include at least one material selected from the group consisting of TiO 2 , Al 2 O 3 and SiO 2 .
- the light diffusing agent may be made of a polymer.
- the LED lens may be made of optical glass or optical plastic.
- an uneven structure may be formed in at least one of the first and second exit portion.
- An LED lens extending from and having a reflecting portion reflecting a part of the light and a second emitting portion opposed to the first output portion, and the light reflected from the reflecting portion is emitted downward, and having a light diffusing agent dispersed therein; It provides a LED module for double-sided lighting comprising a.
- the incidence portion of the LED lens is formed in the concave surface formed concave in the incident direction of the light and the inclined surface extending to form a curved portion on both sides of the top surface is formed, the step is extended from the inclined surface
- the circuit board may be inserted into the unit.
- it may further include a heat sink disposed under the circuit board.
- the LED lens may have a step portion for accommodating the heat sink.
- the LED lens may be made of optical glass or optical plastic.
- a case installed inside the case, mounted on a circuit board on which an LED is mounted, and an upper portion of the circuit board, corresponding to an incident part and an incident part to which light is incident from the LED, and a part of the light exiting upward;
- the present invention provides a double-sided LED lighting apparatus including a plurality of LED modules including an LED lens having a light diffuser dispersed therein, and a diffusion plate provided on and under the LED module.
- the diffusion plate may be made of acrylic.
- LED lens and LED module for double-sided illumination according to the present invention and LED double-sided lighting device using the same corresponds to the incident portion that the light is incident from the LED, and a portion of the light is emitted to the top of the first exit, reflecting a portion of the light
- a double-sided illumination LED lens consisting of a reflector and a second exit portion in which light reflected from the reflector is emitted downward
- the LED can be illuminated on both sides, thereby realizing double-sided illumination with a smaller number of LEDs than before. It can be effective to reduce the production cost and production time.
- the double-sided illumination LED lens can be modularized, there is an effect that the assembly and productivity is improved.
- FIG. 1 is a cross-sectional view of a double-sided lighting sign using a typical LED.
- FIG. 2 is a cross-sectional view schematically showing a double-sided illumination LED lens according to an embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional view of an LED module for double-sided illumination according to another embodiment of the present invention.
- Figure 4 shows the simulation results of the light distribution of the LED module for double-sided illumination according to an embodiment of the present invention.
- 5 and 6 are cross-sectional views schematically showing the LED module for double-sided illumination according to a modified embodiment of the present invention, respectively.
- FIG. 7 is a schematic cross-sectional view of a LED module for double-sided illumination according to another embodiment of the present invention.
- FIG. 8 is a perspective view schematically showing an LED double-sided lighting device according to another embodiment of the present invention.
- the double-sided illumination LED lens 100 has a large incident part 110, a first exit part 120, a reflector 130, and a second exit part 140.
- the incident part 110 is a surface when light emitted from a light source (not shown) is first incident, and extends by forming curved portions on both sides of the vertex 113 and the vertex 113 which are concave in the incident direction of the light.
- the inclined surface 115 is formed.
- a stepped portion 117 is further formed to extend from the inclined surface 115.
- the first emission unit 120 is positioned on an upper surface corresponding to the incident unit 110, and a part of the light incident from the incident unit 110 is refracted by the top surface 113 to be emitted upward, and other light A part is refracted by the inclined surface 115 and reflected by the reflector 130.
- the reflector 130 extends toward the side of the first emitter 120 and is reflected by the first emitter 120. The reflected light is refracted or reflected by the second emission unit 140.
- the second emission unit 140 is positioned on a lower surface facing the first emission surface 120 and refracts the light reflected by the reflection unit 130 to be emitted downward.
- the double-sided illumination LED lens 100 having the shape as described above is the LED is reflected or refracted in the interior of the double-sided illumination LED lens 100 to be emitted to the upper, lower portion of the double-sided illumination LED lens 100, It is possible to illuminate both sides on the basis of LED.
- the light diffusing agent (D) is dispersed in the interior of the double-sided illumination LED lens 100, the light diffusing agent (D) serves to uniform the luminance distribution of the light emitted to the upper and lower portions, and the path of some light It is possible to perform the function of increasing the amount of light directed downward by changing the.
- Light diffusing agent (D) an oxide such as TiO 2 , Al 2 O 3 , SiO 2, or the like may be used, or a polymer may be used.In the case of using the polymer, the haze increases with the increase of the light diffusivity. There is an advantage.
- Light diffusing agent (D) is preferably included in a ratio of 0.1 to 10% with respect to the LED lens 100 for double-sided illumination based on the volume ratio.
- the double-sided illumination LED lens 100 can be processed by injection molding or extrusion molding, such as BK7 or SK5 optical glass with good refractive index or dispersion rate or good transparency and uniformity inside It is preferable that it consists of optical plastics, such as (polycarbonate) and PMMA (acryl).
- injection molding or extrusion molding such as BK7 or SK5 optical glass with good refractive index or dispersion rate or good transparency and uniformity inside It is preferable that it consists of optical plastics, such as (polycarbonate) and PMMA (acryl).
- FIG. 3 is a schematic cross-sectional view of an LED module for double-sided illumination according to another embodiment of the present invention.
- the double-sided illumination LED module 101 is a double-sided illumination LED module 101 including the double-sided illumination LED lens 100 having the same configuration as that of FIG. 2 described above.
- the same reference numerals are used to perform the same functions as those shown in FIG. 2, and overlapping descriptions thereof will be omitted.
- the LED module 101 includes a circuit board 150 having a large LED 153 mounted thereon and an LED lens 100 for double-sided illumination having a configuration as shown in FIG. 2.
- the circuit board 150 equipped with the LED 153 includes a driving IC for controlling the current supplied to the LED 153, a connector for connecting to an external power source, a device for protecting the LED 153, and the like. It is mounted, the material may be made of FR-4 or metal.
- the LED lens 100 for double-sided illumination is mounted on the circuit board 150 on which the LED 153 is mounted.
- the circuit board 150 mounted with the LED 153 may be inserted into the stepped portion 117 which is extended from the inclined surface 115 and extended.
- the light incident from the LED 153 is refracted at the incident surface 110 to be incident on the first emission unit 120.
- the light diffusing agent (D) is dispersed inside the double-sided illumination LED lens 100, the light diffusing agent (D) serves to uniform the luminance distribution of the light emitted to the top and bottom, and the path of some light It is possible to perform the function of increasing the amount of light directed downward by changing the.
- the double-sided illumination LED module 101 includes a double-sided illumination LED lens 100 as shown in FIG. 2, so that the amount of light irradiated on the upper side of the double-sided illumination LED lens 100 is about 20 of the amount of light of the LED 153.
- the amount of light irradiated to the lower portion of the double-sided illumination LED lens 100 in the range of 20% to 80% of the amount of light of the LED 153, the LED lens ( 101)
- the light incident from the LED 153 may be emitted in almost the same amount to the upper and lower portions of the double-sided illumination LED lens 101, such that the angle of the light irradiated on the upper part and the angle of the light irradiated on the lower part is almost the same. You can see that.
- the double-sided illumination LED module 101 ′ is similar to the previous embodiment as a whole, except that the uneven structure is formed in the first emission unit 120.
- the double-sided illumination LED module 101 ′′ has a concave-convex structure on the second emission unit 140.
- the concave-convex structure may be formed in the structure in which both the embodiments of FIGS. 5 and 6 are combined, that is, the first and second emission units 120 and 140.
- FIG. 7 is a schematic cross-sectional view of a LED module for double-sided illumination according to another embodiment of the present invention.
- the double-sided illumination LED module 201 has a structure generally similar to the above-described embodiment, and includes a circuit board 250 equipped with the LEDs 253 and an LED lens for double-sided illumination. 200 is made.
- the circuit board 250 equipped with the LED 253 includes a driving IC for controlling the current supplied to the LED 253, a connector for connecting to an external power source, an element for protecting the LED 253, and the like. It is mounted, the material may be made of FR-4 or metal. In the present embodiment, a heat sink 255 for dissipating heat generated by the LED 253 and the circuit board 250 to the outside is disposed below the circuit board 250.
- the double-sided illumination LED lens 200 is mounted on the circuit board 250 having the LED 253 and the heat sink 255.
- the LED lens 200 for double-sided illumination includes an incidence part 210, a first emission part 220, a reflection part 230, and a second emission part 240, and have a concave surface 213 formed concave in an incident direction of light. ) And an inclined surface 215 extended to both sides of the top surface 213 to form a curved portion.
- a first stepped portion 217 extending from the inclined surface 215 is formed, and in the present embodiment, a second stepped portion 217 ′ having a shape for inserting the heat sink 255 may be further formed. have.
- the light diffusing agent (D) is dispersed inside the double-sided illumination LED lens 100, the light diffusing agent (D) serves to uniform the luminance distribution of the light emitted to the top and bottom, and the path of some light It is possible to perform the function of increasing the amount of light directed downward by changing the.
- FIG. 8 is a perspective view schematically showing an LED double-sided lighting device according to another embodiment of the present invention.
- the LED double-sided lighting device 102 includes a plurality of LED modules 101 for double-sided illumination having the configuration as shown in FIG. 3, the case 160, and the diffusion plate 170.
- the LED double-sided lighting device 102 including the same function as the component shown in Figure 3 of the components shown in Figure 4 used the same reference numerals, and will not be repeated descriptions below. .
- the case 160 may protect the double-sided illumination LED module 101 from the external environment, and may be made of aluminum.
- a plurality of double-sided illumination LED modules 101 are disposed at equal intervals, and upper and lower diffusion plates 170 made of acryl and the like are provided on the double-sided illumination LED module 101.
- the LED double-sided lighting device 102 formed as described above is provided with the LED module 101 for double-sided illumination as shown in Figure 3, it is not necessary to arrange the LED on both sides of the circuit board as in the prior art.
- the size of the case 160 of the LED double-sided lighting device 102 is 600mm x 1000mm, the spacing between the two-sided lighting LED module 101 is 50mm, the upper and lower parts of the double-sided lighting LED module 101 In the case where the distance between the diffusion plates 170 provided on the wall is 65 mm.
- about 750 LEDs were used in the related art, when the LED lens 100 for double-sided illumination according to the present invention is used, about 340 LEDs 153 are used to use the LED 153 less than half the conventional one. .
- the LED lens 100 and the LED module 101 and the LED double-sided lighting device 102 using the two-sided illumination corresponds to the incident portion 110 is incident light from the LED 153
- the LED lens 100 for double-sided illumination made of a
- the LED 153 can be illuminated on both sides, so that the double-sided illumination can be realized with a smaller quantity of LEDs 153 than before, so that the production cost and production time There is a saving effect.
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Abstract
Description
Claims (14)
- 광이 입사되는 입사부;상기 입사부와 대응하며, 상기 광의 일부가 상부로 출사되는 제1 출사부;상기 제1 출사부로부터 연장되며, 상기 광의 일부를 반사시키는 반사부; 및상기 제1 출사부와 대향되며, 상기 반사부로부터 반사된 광이 하부로 출사되는 제2 출사부;를 포함하며,내부에 광 확산제가 분산되어 있는 양면 조명용 LED 렌즈.
- 제 1항에 있어서,상기 입사부는 상기 광의 입사방향으로 오목하게 형성된 꼭지면과 상기 꼭지면의 양측으로 만곡부를 이루어 연장된 경사면이 형성된 양면 조명용 LED 렌즈.
- 제 2항에 있어서,상기 입사부는 상기 경사면으로부터, 확개되어 연장된 단차부가 더 형성된 양면 조명용 LED 렌즈.
- 제 1항에 있어서,상기 광 확산제는 TiO2, Al2O3 및 SiO2로 구성된 그룹으로부터 선택된 적어도 하나의 물질을 포함하는 양면 조명용 LED 렌즈.
- 제 1항에 있어서,상기 광 확산제는 고분자 폴리머로 이루어진 양면 조명용 LED 렌즈.
- 제 1항에 있어서,상기 LED 렌즈는 광학유리 또는 광학 플라스틱으로 이루어진 양면 조명용 LED 렌즈.
- 제 1항에 있어서,상기 제1 및 제2 출사부 중 적어도 하나에 요철 구조가 형성된 양면 조명용 LED 렌즈.
- LED가 탑재된 회로기판; 및상기 회로기판 상부에 장착되며, 상기 LED로부터 광이 입사되는 입사부와 상기 입사부와 대응하고, 상기 광의 일부가 상부로 출사되는 제1 출사부, 상기 제1 출사부으로부터 연장되며, 상기 광의 일부를 반사시키는 반사부 및 상기 제1 출사부와 대향되며, 상기 반사부로부터 반사된 광이 하부로 출사되는 제2 출사부를 구비하며, 내부에 광 확산제가 분산된 LED 렌즈;를 포함하는 양면 조명용 LED 모듈.
- 제 8항에 있어서,상기 LED 렌즈의 입사부는 상기 광의 입사방향으로 오목하게 형성된 꼭지면과 상기 꼭지면의 양측으로 만곡부를 이루어 연장된 경사면이 형성되고, 상기 경사면으로부터, 확개되어 연장된 단차부에는 상기 회로기판이 삽입되는 양면 조명용 LED 모듈.
- 제 8항에 있어서,상기 회로기판 하부에 배치된 히트싱크를 더 포함하는 양면 조명용 LED 모듈.
- 제 10항에 있어서,상기 LED 렌즈는 히트싱크를 수용하기 위한 단차부를 갖는 양면 조명용 LED 모듈.
- 제 8항에 있어서,상기 LED 렌즈는 광학유리 또는 광학 플라스틱으로 이루어진 양면 조명용 LED 모듈.
- 케이스;상기 케이스 내부에 설치되며, LED가 탑재된 회로기판과 상기 회로기판 상부에 장착되며, 상기 LED로부터 광이 입사되는 입사부와 상기 입사부와 대응하고, 상기 광의 일부가 상부로 출사되는 제1 출사부, 상기 제1 출사부로부터 연장되며, 상기 광의 일부를 반사시키는 반사부 및 상기 제1 출사부와 대향되며, 상기 반사부로부터 반사된 광이 하부로 출사되는 제2 출사부를 구비하며 내부에 광 확산제가 분산된 LED 렌즈를 포함하는 다수개의 LED 모듈; 및상기 LED 모듈의 상, 하부에 구비되는 확산판;을 포함하는 LED 양면 조명 장치.
- 제 13항에 있어서,상기 확산판은 아크릴로 이루어진 LED 양면 조명 장치.
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DE112011105462.9T DE112011105462B4 (de) | 2011-07-26 | 2011-07-26 | LED-Modul für beidseitige Beleuchtung und beidseitige LED-Beleuchtungsvorrichtung mit demselben |
CN201180073211.2A CN103765087A (zh) | 2011-07-26 | 2011-07-26 | 用于双侧照明的led透镜和led模块以及应用该透镜和模块的led双侧照明设备 |
PCT/KR2011/005511 WO2013015468A1 (ko) | 2011-07-26 | 2011-07-26 | 양면 조명용 led 렌즈와 led 모듈 및 이를 이용한 led 양면 조명장치 |
US14/234,910 US9163805B2 (en) | 2011-07-26 | 2011-07-26 | LED lens and LED module for two-sided lighting, and LED two-sided lighting apparatus using same |
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PCT/KR2011/005511 WO2013015468A1 (ko) | 2011-07-26 | 2011-07-26 | 양면 조명용 led 렌즈와 led 모듈 및 이를 이용한 led 양면 조명장치 |
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JP2016033886A (ja) * | 2014-07-31 | 2016-03-10 | パナソニックIpマネジメント株式会社 | 照明装置 |
KR20160027286A (ko) * | 2014-08-28 | 2016-03-10 | 삼성전자주식회사 | 광학소자 |
USD739739S1 (en) | 2014-09-11 | 2015-09-29 | Mary Kay Inc. | Cosmetic container |
KR102266737B1 (ko) * | 2014-11-03 | 2021-06-18 | 엘지이노텍 주식회사 | 렌즈, 렌즈를 포함하는 발광 장치, 및 발광 장치를 포함하는 백 라이트 유닛 |
DE102014119616A1 (de) * | 2014-12-23 | 2016-06-23 | Siteco Beleuchtungstechnik Gmbh | LED-Linsenkörper zur Erzeugung eines Direkt- und Indirektlichtanteils |
KR20160098580A (ko) * | 2015-02-09 | 2016-08-19 | 삼성전자주식회사 | 광학 소자 및 이를 포함하는 광원 모듈 |
CN105570835A (zh) * | 2016-03-09 | 2016-05-11 | 安徽康佳绿色照明技术有限公司 | 一种led灯90度透镜 |
FI130299B (en) * | 2017-12-28 | 2023-06-09 | Ledfoil Finland Oy | DISPLAY STRUCTURE SUITABLE FOR ICE AND OUTDOOR USE |
US10697612B2 (en) | 2018-05-02 | 2020-06-30 | Frank Shum | Light distribution for planar photonic component |
US20240212531A1 (en) * | 2022-12-21 | 2024-06-27 | Keystone Technologies, LLC | Portable led sign cabinet |
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US9163805B2 (en) | 2015-10-20 |
DE112011105462B4 (de) | 2021-01-14 |
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