WO2012128547A2 - Led lamp - Google Patents

Led lamp Download PDF

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Publication number
WO2012128547A2
WO2012128547A2 PCT/KR2012/002009 KR2012002009W WO2012128547A2 WO 2012128547 A2 WO2012128547 A2 WO 2012128547A2 KR 2012002009 W KR2012002009 W KR 2012002009W WO 2012128547 A2 WO2012128547 A2 WO 2012128547A2
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WO
WIPO (PCT)
Prior art keywords
light
led
led lamp
guide plate
optical sheet
Prior art date
Application number
PCT/KR2012/002009
Other languages
French (fr)
Korean (ko)
Other versions
WO2012128547A3 (en
Inventor
강신철
Original Assignee
(주)테크자인라이트패널
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Application filed by (주)테크자인라이트패널 filed Critical (주)테크자인라이트패널
Publication of WO2012128547A2 publication Critical patent/WO2012128547A2/en
Publication of WO2012128547A3 publication Critical patent/WO2012128547A3/en

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Classifications

    • 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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
    • 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
    • F21V5/02—Refractors for light sources of prismatic 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
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • F21K9/66—Details of globes or covers 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
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • 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
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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 an LED lamp, and more particularly, to an LED lamp to secure a 360-degree irradiation angle by mounting a light guide plate pattern processed light guide plate on a prism sheet to a cylindrical diffuser.
  • Tube-type fluorescent lamp replacement LED lamps directly under the LED require the design of a PCB to place a large number of LEDs directly on the back and use a thick diffuser to eliminate spots.
  • the irradiation angle stays at a level of 120 degrees, and thus there is a problem in that the light efficiency is lowered as a whole because there is no use of a reflector compared to a fluorescent lamp having a 360 degree irradiation angle.
  • the LED module provided on both sides of the diffuser is irradiated with the light toward the center, but the light is not transmitted completely to the center causes a problem that the light intensity of both sides and the center is different.
  • An object of the present invention is to provide an LED lamp having a 360 degree irradiation angle.
  • Another object of the present invention is to provide a LED lamp to maximize the light transmission by seating the light guide plate pattern processing on the prism sheet to the light-emitting type optical sheet to ensure the light straightness and light transmission to the diffuser.
  • Still another object of the present invention is to provide an LED lamp that can increase light efficiency by using a reflector for light irradiated with 360 degrees.
  • a cylindrical diffuser for diffusing light
  • a light emitting optical sheet seated 360 degrees inside the cylindrical diffuser and having a dot pattern processed on the backside of the light guide plate
  • at least one LED module for receiving light from the outside through a connection terminal to irradiate light into the cylindrical diffuser.
  • the LED module is installed in close contact with the rear of the PCB, characterized in that it further comprises a heat dissipation cover for heat dissipation generated from the LED module.
  • the present invention it characterized in that it further comprises a reflector for intensively irradiating the light in the direction to reflect by reflecting the light irradiated in the fixed surface direction.
  • the reflection shade is characterized in that configured to perform a heat radiation function is connected to the heat dissipation cover.
  • the light emitting optical sheet may include: a light guide plate layer for distributing the light emitted from the LED module to the entire area through the light guide plate and transforming the light into a surface light source of uniform brightness using a cylindrical diffuser; And a light scattering layer having a light scattering dot pattern formed on the rear surface of the light guide plate so that the luminance distribution is uniform in the entire area of the cylindrical light diffuser, wherein the front surface of the light guide plate layer is formed with a curved layer for converting photometry into front light.
  • the dot pattern diameter is sequentially patterned in the opposite direction from the starting position to which the light is irradiated in a broad direction.
  • the light emitting optical sheet is characterized in that the dot pattern diameter is sequentially patterned from both sides to the center from the light is irradiated when the LED module is installed on both sides.
  • the light guide plate pattern processing on the prism sheet has the effect of maximizing light transmission by seating a 360-degree light-emitting optical sheet that ensures the light straightness and light transmission property to the diffuser.
  • the irradiation angle of light is 360 degrees, it is possible to maximize the light efficiency by using an existing reflector or a high-efficiency reflector as well as to broaden the use by changing the reflector according to the use.
  • 1 is a view showing a conventional LED lamp.
  • FIG. 2 is a perspective view of an LED lamp according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view of an LED lamp according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
  • FIG. 5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention.
  • FIG. 6 is a view showing a dot pattern of the light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention.
  • Figure 7 is a perspective view showing an example of the LED lamp provided with only one side of the LED module according to an embodiment of the present invention.
  • FIG 8 is a view showing an example configured a reflection shade of the LED lamp according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of an LED lamp according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view of the LED lamp according to an embodiment of the present invention.
  • an LED lamp according to an exemplary embodiment of the present invention includes a cylindrical diffuser 10 for diffusing light and one end or the other based on the cylindrical diffuser 10. It is provided at both ends, at least one LED module 30 for irradiating light into the cylindrical diffuser 10 by receiving power from the outside through the connection terminal 50, and the cylindrical diffuser 10 It is configured to include a light emitting optical sheet 40 seated 360 degrees to effectively transmit light therein.
  • the LED module 30 may use one power LED device having a high wattage or several LED devices having a low wattage.
  • the LED element of the LED module 30 is configured to have a high wattage
  • the LED element is configured as an LED package including a heat dissipation PC and a power supply module in which the LED element is mounted, and the LED element is configured to have a low wattage.
  • the PCB on which one or more LED elements are mounted so as to face the light emitting optical sheet 40.
  • the LED module 30 is preferably configured to irradiate light at an angle at which light transmission can be maximized to the light emitting optical sheet 40. Light is irradiated toward the light emitting optical sheet 40. It is possible to manufacture and attach a PCB mounted with an LED element.
  • the rear side of the LED module 30 is further provided with a heat dissipation cover 20, the LED element is configured to heat dissipation by being in close contact with the mounted PCB, and a cylindrical diffuser 10 for protecting the LED module 30 ) Perform the function of the cover.
  • the heat dissipation cover 20 is formed with a hole so that the connection terminal 50 for applying power to the LED module 30 can protrude to the outside.
  • the cylindrical diffuser 10 is preferably a diffusion rate of 15% to 20%.
  • FIG. 4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
  • the light emitting optical sheet 40 includes a light guide plate layer 41 and a light scattering layer 42, and the front surface of the light guide plate layer 41 has a curved layer 44 for converting photometry to front light. ) Is formed.
  • the light guide plate layer 41 of the light emitting optical sheet 40 is a prism sheet for improving luminance.
  • the prism sheet is used as the light guide plate layer 41 in the embodiment of the present invention, the following description will describe the "light guide plate layer 41" as the "prism sheet 41".
  • the prism sheet 41 obtains light from the light irradiated from the LED module 30, distributes the light to the entire area through the light guide plate, and deforms the surface light source of more uniform brightness using the cylindrical diffuser 10. To perform the function.
  • the curved layer 42 of the prism sheet 41 converts side light into front light and condenses the emitted light to increase luminance.
  • the light efficiency becomes weaker as the light transmission distance increases and a difference in luminance uniformity occurs.
  • the light scattering layer 42 forming a light scattering ink pattern on the light guide plate layer 41, that is, on the back of the prism sheet 41 is used. Further formed.
  • FIG. 5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention
  • Figure 6 is a dot pattern of a light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention The figure shown.
  • the light scattering layer 42 of the light emitting optical sheet 40 has a dot pattern diameter sequentially opposite to each other. Designed to be large to the end and bonded in a cylinder, as shown in Figure 6, when the LED module 30 is installed on both sides and irradiated with light in the center, it is designed to increase the dot pattern diameter from both sides to the center sequentially Join the cylinder.
  • the light scattering dot pattern constituting the light scattering layer 42 is a light scattering pattern of a certain shape such as a circle, a square or a hexagon on the back of the prism sheet 41 is formed by forming a light scattering ink pattern by screen printing The method is applied.
  • the light scattering dot pattern forming method will be described in more detail.
  • the dot pattern is changed to design the luminance uniformity to be equal to or higher than a predetermined level. That is, the intensity of light incident on the prism sheet 41 decreases as the distance from the light source increases, and the luminance of light propagating along the light guide plate and scattered in the pattern is proportional to the area of the pattern. Therefore, since the luminance of the light actually scattered is proportional to the product of the area of the pattern and the light intensity incident on the light source, in order to make the luminance distribution uniform in all areas, the size is increased by a function as it moves away from the light source.
  • the spacing is designed so that the scattered light of each pattern is sufficiently overlapped to increase the uniformity.
  • the luminance uniformity it is preferable to design the luminance uniformity to a predetermined level or more in consideration of the minimum printable period, size, and shape, because the ink pattern is too small for the pattern that is too small.
  • the bent layer 44 is bonded to the cylinder with the inner side and the light scattering layer 42 toward the outside.
  • FIG. 7 is a perspective view showing an example of an LED lamp having an LED module according to an embodiment of the present invention only on one side.
  • the LED module 30 when the LED module 30 is provided on only one side, the LED module 30 may be seated on the light emitting optical sheet 40 having the one-way dot pattern illustrated in FIG. 5, and the LED module 30 may not be provided.
  • the general cover 22 instead of the heat dissipation cover 20 on the other side, it is possible to lower the production cost of the LED lamp produced for the purpose of a small amount of light.
  • FIG 8 is a view showing an example in which the reflection shade of the LED lamp according to an embodiment of the present invention is configured.
  • the LED lamp of the present invention since the LED lamp of the present invention has a 360-degree irradiation angle, the light irradiated to a fixed surface is reflected by the reflector 60 so as to concentrate irradiation in a direction for irradiating the actual light. Can increase.
  • the shape of the reflection shade 60 is not limited to the shape shown, but may vary in shape depending on the intended use.
  • the reflector 60 may be configured to be connected to the heat dissipation cover 20 to perform a predetermined heat dissipation function together with the heat dissipation cover 20.
  • the LED lamp of the present invention can be used in the conventional ordinary fluorescent lamp socket 52 by being configured in the AC type.

Abstract

The present invention relates to an LED lamp in which a light-emitting optical sheet formed by processing a light-guide plate pattern on a prism sheet is placed within a cylindrical diffuser to ensure an emission angle of 360 degrees. The LED lamp according to the present invention comprises: a cylindrical diffuser for diffusing light; a light-emitting optical sheet which is placed within the cylindrical diffuser to ensure an emission angle of 360 degrees, and which is processed into a dot pattern on the back surface of the light-guide plate; and one or more LED modules which receive power from an external source via connection terminals so as to emit light into the cylindrical diffuser.

Description

ＬＥＤ 램프LED lamp
본 발명은 LED 램프에 관한 것으로, 보다 상세하게는 프리즘 시트에 도광판 패턴 가공된 발광형 광학 시트를 원통형 산광기에 안착하여 360도 조사각이 확보되도록 하는 LED 램프에 관한 것이다.The present invention relates to an LED lamp, and more particularly, to an LED lamp to secure a 360-degree irradiation angle by mounting a light guide plate pattern processed light guide plate on a prism sheet to a cylindrical diffuser.
LED(Light Emitting Diode) 직하 방식의 튜브타입 형광등 대체용 LED 램프는 다수의 LED를 배면에 직하 방식으로 배치하기 위해 PCB를 설계하고 점(Spot)을 없애기 위해 두꺼운 산광기(Diffuser)를 사용해야 한다.Tube-type fluorescent lamp replacement LED lamps directly under the LED (Light Emitting Diode) require the design of a PCB to place a large number of LEDs directly on the back and use a thick diffuser to eliminate spots.
그리고, 내부에 SMPS 내장으로 인한 발열문제가 있으며, PCB나 산광기로 인한 무거운 중량으로 시간 경과시 쳐짐 현상으로 인한 기구, 전기적 문제가 발생한다.In addition, there is a heating problem due to the built-in SMPS, and due to the heavy weight caused by the PCB or light diffuser, the mechanical and electrical problems are caused by the droop over time.
또한, 배면에 PCB를 장착함에 따라 조사각이 120도 수준에 머물러 360도 조사각을 갖는 형광등에 비해 반사갓 사용효과가 없어 전체적으로 광효율이 낮아지는 문제가 있다.In addition, as the PCB is mounted on the rear surface, the irradiation angle stays at a level of 120 degrees, and thus there is a problem in that the light efficiency is lowered as a whole because there is no use of a reflector compared to a fluorescent lamp having a 360 degree irradiation angle.
이와 같은 문제를 해결하기 위해 산광기 측면에 파워 엘이디로 빛을 조사하는 방식이 연구되고 있다.To solve this problem, a method of irradiating light with a power LED on the side of a diffuser is being studied.
하지만, 도 1에 도시된 바와 같이, 산광기 양쪽에 구비된 엘이디 모듈이 중심부를 향해 빛을 조사하고 있으나 중심부까지 빛이 온전히 전달되지 못하여 양 측면과 중심부의 빛의 세기가 달라지는 문제점이 발생한다.However, as shown in Figure 1, the LED module provided on both sides of the diffuser is irradiated with the light toward the center, but the light is not transmitted completely to the center causes a problem that the light intensity of both sides and the center is different.
본 발명의 목적은, 360도 조사각을 갖는 LED 램프를 제공함에 있다.An object of the present invention is to provide an LED lamp having a 360 degree irradiation angle.
본 발명의 다른 목적은, 프리즘 시트에 도광판 패턴가공을 하여 광 직진성과 광 전달성이 확보되는 360도 발광형 광학 시트를 산광기에 안착하여 광 전달이 극대화되도록 하는 LED 램프를 제공함에 있다.Another object of the present invention is to provide a LED lamp to maximize the light transmission by seating the light guide plate pattern processing on the prism sheet to the light-emitting type optical sheet to ensure the light straightness and light transmission to the diffuser.
본 발명의 또 다른 목적은, 360도 조사되는 빛을 반사갓을 이용하여 광효율을 높일 수 있도록 하는 LED 램프를 제공함에 있다.Still another object of the present invention is to provide an LED lamp that can increase light efficiency by using a reflector for light irradiated with 360 degrees.
상기한 본 발명의 목적은, 엘이디(LED) 램프에 있어서, 빛을 확산하기 위한 원통형 산광기(diffuser); 상기 원통형 산광기 내부에 360도 안착되며, 도광판 뒷면에 도트 패턴 가공된 발광형 광학 시트(optical sheet); 및 외부로부터 접속 단자를 통해 전원을 인가받아 상기 원통형 산광기 내부로 빛을 조사하기 위한 하나 이상의 엘이디(LED) 모듈을 포함하는 것을 특징으로 하는 LED 램프에 의해 달성된다.An object of the present invention as described above, in the LED (LED) lamp, a cylindrical diffuser (diffuser) for diffusing light; A light emitting optical sheet seated 360 degrees inside the cylindrical diffuser and having a dot pattern processed on the backside of the light guide plate; And at least one LED module for receiving light from the outside through a connection terminal to irradiate light into the cylindrical diffuser.
또한 본 발명에 따르면, 상기 엘이디 모듈의 피씨비 후면에 밀착 설치되어 엘이디 모듈로부터 발생되는 열을 방열하기 위한 방열 커버를 더 포함하는 것을 특징으로 한다.Further, according to the present invention, the LED module is installed in close contact with the rear of the PCB, characterized in that it further comprises a heat dissipation cover for heat dissipation generated from the LED module.
또한 본 발명에 따르면, 고정되는 면 방향으로 조사되는 빛을 반사하여 조사하고자 하는 방향으로 빛을 집중 조사하기 위한 반사갓을 더 포함하는 것을 특징으로 한다.In addition, according to the present invention, it characterized in that it further comprises a reflector for intensively irradiating the light in the direction to reflect by reflecting the light irradiated in the fixed surface direction.
또한 본 발명에 따르면, 상기 반사갓은 상기 방열 커버에 접속되어 방열기능을 수행하도록 구성된 것을 특징으로 한다.In addition, according to the invention, the reflection shade is characterized in that configured to perform a heat radiation function is connected to the heat dissipation cover.
또한 본 발명에 따르면, 상기 발광형 광학 시트는, 엘이디 모듈로부터 조사되는 빛을 도광판을 통해 전체 면적으로 분포시키고, 원통형 산광기를 이용하여 균일한 밝기의 면광원으로 변형시키기 위한 도광판층; 및 상기 원통형 산광기 전 영역에서 휘도분포가 균일하게 되도록 상기 도광판 뒷면에 광산란 도트 패턴이 형성된 광산란층을 포함하며, 상기 도광판층 앞면은 측광을 정면광으로 바꾸기 위한 굴곡층이 형성된 것을 특징으로 한다.According to the present invention, the light emitting optical sheet may include: a light guide plate layer for distributing the light emitted from the LED module to the entire area through the light guide plate and transforming the light into a surface light source of uniform brightness using a cylindrical diffuser; And a light scattering layer having a light scattering dot pattern formed on the rear surface of the light guide plate so that the luminance distribution is uniform in the entire area of the cylindrical light diffuser, wherein the front surface of the light guide plate layer is formed with a curved layer for converting photometry into front light.
또한 본 발명에 따르면, 상기 발광형 광학 시트는, 상기 엘이디 모듈이 일 측에만 설치된 경우, 빛이 조사되는 시작 위치에서부터 반대 방향으로 도트 패턴 직경이 순차적으로 넓게 패턴 가공된 것을 특징으로 한다.Further, according to the present invention, when the LED module is installed on only one side, the dot pattern diameter is sequentially patterned in the opposite direction from the starting position to which the light is irradiated in a broad direction.
또한 본 발명에 따르면, 상기 발광형 광학 시트는, 상기 엘이디 모듈이 양측에 설치된 경우, 빛이 조사되는 양쪽으로부터 중앙까지 도트 패턴 직경이 순차적으로 넓게 패턴 가공된 것을 특징으로 한다.In addition, according to the present invention, the light emitting optical sheet is characterized in that the dot pattern diameter is sequentially patterned from both sides to the center from the light is irradiated when the LED module is installed on both sides.
본 발명에 따른 LED 램프에 의하면, 프리즘 시트에 도광판 패턴가공을 하여 광 직진성과 광 전달성이 확보되는 360도 발광형 광학 시트를 산광기에 안착하여 광 전달이 극대화되는 효과가 있다.According to the LED lamp according to the present invention, the light guide plate pattern processing on the prism sheet has the effect of maximizing light transmission by seating a 360-degree light-emitting optical sheet that ensures the light straightness and light transmission property to the diffuser.
또한, 빛의 조사각이 360도이므로 기존 반사갓 또는 고효율 반사갓을 이용하여 광효율을 극대화함은 물론 용도에 따라 반사갓을 달리함으로써 사용 용도를 넓힐 수 있는 효과가 있다.In addition, since the irradiation angle of light is 360 degrees, it is possible to maximize the light efficiency by using an existing reflector or a high-efficiency reflector as well as to broaden the use by changing the reflector according to the use.
그리고, 기존 형광등 기구를 대체 사용할 수 있기 때문에 설치가 용이한 효과가 있으며, 시간 경과에 따른 LED 스팟(spot) 현상이 없으며, 경량화로 하중에 따른 변형 문제가 없으며, 간접조명 방식으로 눈부신 현상이 없는 효과가 있다.In addition, it is easy to install because it can replace the existing fluorescent light fixture, there is no LED spot phenomenon over time, there is no deformation problem according to the load by light weight, and there is no dazzling phenomenon by indirect lighting It works.
도 1은 종래의 LED 램프를 나타낸 도면.1 is a view showing a conventional LED lamp.
도 2는 본 발명의 실시예에 따른 LED 램프의 사시도.2 is a perspective view of an LED lamp according to an embodiment of the present invention.
도 3은 본 발명의 실시예에 따른 LED 램프의 분해 사시도.3 is an exploded perspective view of an LED lamp according to an embodiment of the present invention.
도 4는 본 발명의 실시예에 따른 발광형 광학 시트의 단면도.4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
도 5는 본 발명의 실시예에 따른 일방향 광산란을 위한 발광형 광학 시트의 도트 패턴 형태를 나타낸 도면.5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention.
도 6은 본 발명의 실시예에 따른 양방향 광산란을 위한 발광형 광학 시트의 도트 패턴 형태를 나타낸 도면.6 is a view showing a dot pattern of the light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention.
도 7은 본 발명의 실시예에 따른 엘이디 모듈이 일측에만 구비된 LED 램프의 예를 나타낸 사시도.Figure 7 is a perspective view showing an example of the LED lamp provided with only one side of the LED module according to an embodiment of the present invention.
도 8은 본 발명의 실시예에 따른 LED 램프의 반사갓이 구성된 예를 나타낸 도면.8 is a view showing an example configured a reflection shade of the LED lamp according to an embodiment of the present invention.
본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.
따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.
이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세하게 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 LED 램프의 사시도이고, 도 3은 본 발명의 실시예에 따른 LED 램프의 분해 사시도이다.2 is a perspective view of an LED lamp according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the LED lamp according to an embodiment of the present invention.
도 2 및 도 3을 참조하면, 본 발명의 실시예에 따른 엘이디(LED) 램프는 빛을 확산하기 위한 원통형 산광기(diffuser)(10)와, 상기 원통형 산광기(10)를 기준으로 일단 또는 양단에 구비되며, 외부로부터 접속 단자(50)를 통해 전원을 인가받아 상기 원통형 산광기(10) 내부로 빛을 조사하기 위한 하나 이상의 엘이디(LED) 모듈(30)과, 상기 원통형 산광기(10) 내부에 빛이 효과적으로 전달되도록 360도로 안착된 발광형 광학 시트(40)을 포함하여 구성된다.2 and 3, an LED lamp according to an exemplary embodiment of the present invention includes a cylindrical diffuser 10 for diffusing light and one end or the other based on the cylindrical diffuser 10. It is provided at both ends, at least one LED module 30 for irradiating light into the cylindrical diffuser 10 by receiving power from the outside through the connection terminal 50, and the cylindrical diffuser 10 It is configured to include a light emitting optical sheet 40 seated 360 degrees to effectively transmit light therein.
상기 엘이디 모듈(30)에는 와트수가 높은 하나의 파워 엘이디 소자 또는 와트수가 낮은 여러 개의 엘이디 소자가 사용될 수 있다.The LED module 30 may use one power LED device having a high wattage or several LED devices having a low wattage.
상기 엘이디 모듈(30)의 엘이디 소자가 높은 와트수로 구성될 경우에는 엘이디 소자가 실장된 방열 피씨비 및 전원모듈로 구성되는 엘이디 패키지 형태로 구성되는 것이 바람직하며, 엘이디 소자가 낮은 와트수로 구성될 경우에는 하나 이상의 엘이디 소자가 실장된 피시비(PCB)를 상기 발광형 광학 시트(40)를 향하도록 구성하는 것이 바람직하다.When the LED element of the LED module 30 is configured to have a high wattage, it is preferable that the LED element is configured as an LED package including a heat dissipation PC and a power supply module in which the LED element is mounted, and the LED element is configured to have a low wattage. In this case, it is preferable to configure the PCB on which one or more LED elements are mounted so as to face the light emitting optical sheet 40.
상기 엘이디 모듈(30)은 발광형 광학 시트(40)로 광 전달이 극대화될 수 있는 각도로 빛을 조사할 수 있도록 구성되도록 하는 것이 바람직한데, 상기 발광형 광학 시트(40) 방향으로 빛이 조사될 수 있는 엘이디 소자가 실장된 피씨비를 제작하여 부착할 수 있다.The LED module 30 is preferably configured to irradiate light at an angle at which light transmission can be maximized to the light emitting optical sheet 40. Light is irradiated toward the light emitting optical sheet 40. It is possible to manufacture and attach a PCB mounted with an LED element.
상기 엘이디 모듈(30) 후면에는 방열 커버(20)가 더 구비되는데, 엘이디 소자가 실장된 피씨비에 밀착되도록 하여 방열할 수 있도록 구성되며, 상기 엘이디 모듈(30)을 보호하기 위한 원통형 산광기(10) 커버의 기능을 수행한다.The rear side of the LED module 30 is further provided with a heat dissipation cover 20, the LED element is configured to heat dissipation by being in close contact with the mounted PCB, and a cylindrical diffuser 10 for protecting the LED module 30 ) Perform the function of the cover.
상기 방열 커버(20)는 상기 엘이디 모듈(30)로 전원을 인가하기 위한 접속단자(50)가 외부로 돌출될 수 있도록 홀이 형성되어 있다.The heat dissipation cover 20 is formed with a hole so that the connection terminal 50 for applying power to the LED module 30 can protrude to the outside.
상기 원통형 산광기(10)는 15%~20%의 확산비율인 것이 바람직하다.The cylindrical diffuser 10 is preferably a diffusion rate of 15% to 20%.
도 4는 본 발명의 실시예에 따른 발광형 광학 시트의 단면도이다.4 is a cross-sectional view of a light emitting optical sheet according to an embodiment of the present invention.
도 4에 도시된 바와 같이, 발광형 광학 시트(40)는 도광판층(41)과 광산란층(42)으로 구성되며, 상기 도광판층(41) 앞면은 측광을 정면광으로 바꾸기 위한 굴곡층(44)이 형성되어 있다.As shown in FIG. 4, the light emitting optical sheet 40 includes a light guide plate layer 41 and a light scattering layer 42, and the front surface of the light guide plate layer 41 has a curved layer 44 for converting photometry to front light. ) Is formed.
상기 발광형 광학 시트(40)의 도광판층(41)은 휘도를 향상시키기 위한 프리즘 시트이다.The light guide plate layer 41 of the light emitting optical sheet 40 is a prism sheet for improving luminance.
본 발명의 실시예에서는 도광판층(41)으로 프리즘 시트를 사용하였기 때문에 이하 설명에서는 "도광판층(41)"을 "프리즘 시트(41)"로 설명하도록 한다.Since the prism sheet is used as the light guide plate layer 41 in the embodiment of the present invention, the following description will describe the "light guide plate layer 41" as the "prism sheet 41".
프리즘 시트(41)는 엘이디 모듈(30)로부터 조사되는 빛으로부터 광을 얻고, 이 광을 도광판을 통해 전체 면적으로 분포시키고, 원통형 산광기(10)를 이용하여 보다 균일한 밝기의 면광원으로 변형시키는 기능을 수행한다.The prism sheet 41 obtains light from the light irradiated from the LED module 30, distributes the light to the entire area through the light guide plate, and deforms the surface light source of more uniform brightness using the cylindrical diffuser 10. To perform the function.
이러한 과정에서 초기 광원으로부터 출시된 광의 효율은 점점 떨어지게 되는데 프리즘 시트(41)의 굴곡층(42)이 측광(side light)을 정면광으로 바꾸고 방사하는 광을 집광시켜 휘도를 높인다.In this process, the efficiency of the light released from the initial light source is gradually decreased. The curved layer 42 of the prism sheet 41 converts side light into front light and condenses the emitted light to increase luminance.
하지만, 광의 효율은 빛의 전달 거리가 멀어질수록 약해지고 휘도 균일도의 차이가 생기기 때문에 본 발명에서는 도광판층(41) 즉, 프리즘 시트(41) 뒷면에 광산란 잉크 패턴을 형성시키는 광산란층(42)을 추가로 형성시켰다.However, the light efficiency becomes weaker as the light transmission distance increases and a difference in luminance uniformity occurs. In the present invention, the light scattering layer 42 forming a light scattering ink pattern on the light guide plate layer 41, that is, on the back of the prism sheet 41 is used. Further formed.
도 5는 본 발명의 실시예에 따른 일방향 광산란을 위한 발광형 광학 시트의 도트 패턴 형태를 나타낸 도면이고, 도 6은 본 발명의 실시예에 따른 양방향 광산란을 위한 발광형 광학 시트의 도트 패턴 형태를 나타낸 도면이다.5 is a view showing a dot pattern of the light emitting optical sheet for unidirectional light scattering according to an embodiment of the present invention, Figure 6 is a dot pattern of a light emitting optical sheet for bidirectional light scattering according to an embodiment of the present invention The figure shown.
도 5에 도시된 바와 같이, 엘이디 모듈(30)이 한쪽에만 설치될 경우, 빛 조사가 한쪽 방향에서 이루어지기 때문에 발광형 광학 시트(40)의 광산란층(42) 도트 패턴 직경이 순차적으로 반대 방향 끝까지 커지도록 설계하여 원통으로 접합하며, 도 6에 도시된 바와 같이, 엘이디 모듈(30)이 양쪽에 설치되어 중앙으로 빛을 조사할 경우, 양쪽으로부터 도트 패턴 직경이 순차적으로 중앙까지 커지도록 설계하여 원통으로 접합하도록 한다.As shown in FIG. 5, when the LED module 30 is installed only on one side, since light irradiation is made in one direction, the light scattering layer 42 of the light emitting optical sheet 40 has a dot pattern diameter sequentially opposite to each other. Designed to be large to the end and bonded in a cylinder, as shown in Figure 6, when the LED module 30 is installed on both sides and irradiated with light in the center, it is designed to increase the dot pattern diameter from both sides to the center sequentially Join the cylinder.
상기 광산란층(42)을 이루는 광산란 도트 패턴은 프리즘 시트(41) 뒷면에 원형, 사각형 또는 육각형 등의 일정한 모양의 광산란 패턴이 배열을 이루고 있으며 그 형성 방법으로는 스크린 인쇄로서 광산란 잉크패턴을 형성시키는 방식이 적용된다.The light scattering dot pattern constituting the light scattering layer 42 is a light scattering pattern of a certain shape such as a circle, a square or a hexagon on the back of the prism sheet 41 is formed by forming a light scattering ink pattern by screen printing The method is applied.
상기 광산란 도트 패턴 형성 방법을 보다 상세히 설명하면, 프리즘 시트(41)에 광산란층(42)을 형성시킴에 있어서 휘도 균일도를 일정 수준 이상이 되도록 설계하기 위해서 도트 패턴을 변화시킨다. 즉, 상기 프리즘 시트(41)에 입사된 빛의 강도는 광원으로부터의 거리가 멀어짐에 따라 감소하고, 도광판을 따라 전파되어 패턴에서 산란되는 빛의 휘도는 그 패턴의 면적에 비례한다. 따라서, 실제로 산란되는 빛의 휘도는 패턴의 면적과 광원에 입사된 광강도의 곱에 비례하기 때문에 전 영역에서 휘도분포가 균일하게 되도록 하기 위해서는 광원에서 멀어짐에 따라 그 크기를 어떤 함수로 증가시켜서 설계하며 그 간격은 각 패턴의 산란광이 충분히 중첩되어 균일성이 증가 되도록 설계한다.The light scattering dot pattern forming method will be described in more detail. In the formation of the light scattering layer 42 on the prism sheet 41, the dot pattern is changed to design the luminance uniformity to be equal to or higher than a predetermined level. That is, the intensity of light incident on the prism sheet 41 decreases as the distance from the light source increases, and the luminance of light propagating along the light guide plate and scattered in the pattern is proportional to the area of the pattern. Therefore, since the luminance of the light actually scattered is proportional to the product of the area of the pattern and the light intensity incident on the light source, in order to make the luminance distribution uniform in all areas, the size is increased by a function as it moves away from the light source. The spacing is designed so that the scattered light of each pattern is sufficiently overlapped to increase the uniformity.
그러나 주기가 너무 작으면 패턴의 크기가 너무 작아지게 되어 패턴 형성이 어려워지게 된다. 특히 스크린 인쇄로 패턴을 구현할 때 크기가 너무 작은 패턴은 잉크가 잘 빠지지 않기 때문에 인쇄 가능한 최소 주기 및 크기, 모양을 고려하여 휘도 균일도를 일정 수준 이상이 되도록 설계하는 것이 바람직하다.However, if the period is too small, the size of the pattern becomes too small, making pattern formation difficult. In particular, when the pattern is implemented by screen printing, it is preferable to design the luminance uniformity to a predetermined level or more in consideration of the minimum printable period, size, and shape, because the ink pattern is too small for the pattern that is too small.
이렇게 설계된 발광형 광학 시트(40)를 원통형 산광기(10) 내부에 안착시키기 위해 굴곡층(44)이 내측을 향하고 광산란층(42)이 외측을 향하도록 원통으로 접합한다.In order to seat the designed light-emitting optical sheet 40 in the cylindrical diffuser 10, the bent layer 44 is bonded to the cylinder with the inner side and the light scattering layer 42 toward the outside.
도 7은 본 발명의 실시예에 따른 엘이디 모듈이 일측에만 구비된 LED 램프의 예를 나타낸 사시도이다.7 is a perspective view showing an example of an LED lamp having an LED module according to an embodiment of the present invention only on one side.
도 7에 도시된 바와 같이, 일측에만 엘이디 모듈(30)이 구비된 경우 도 5에 도시된 일 방향 도트 패턴을 갖는 발광형 광학 시트(40)를 안착시키도록 하며, 엘이디 모듈(30)이 없는 타측에는 방열 커버(20)가 아닌 일반 커버(22)로 구성시킴으로써, 적은 광량을 목적으로 생산되는 엘이디 램프의 생산 단가를 낮출 수 있다.As illustrated in FIG. 7, when the LED module 30 is provided on only one side, the LED module 30 may be seated on the light emitting optical sheet 40 having the one-way dot pattern illustrated in FIG. 5, and the LED module 30 may not be provided. By configuring the general cover 22 instead of the heat dissipation cover 20 on the other side, it is possible to lower the production cost of the LED lamp produced for the purpose of a small amount of light.
도 8은 본 발명의 실시예에 따른 LED 램프의 반사갓이 구성된 예를 나타낸 도면이다.8 is a view showing an example in which the reflection shade of the LED lamp according to an embodiment of the present invention is configured.
도 8에 도시된 바와 같이, 본 발명의 엘이디 램프는 360도의 조사각을 갖기 때문에 고정된 면으로 조사되는 빛이 반사갓(60)에 의해 반사되어 실제 빛을 조사하기 위한 방향으로 집중 조사되도록 하여 효율을 높일 수 있다.As shown in FIG. 8, since the LED lamp of the present invention has a 360-degree irradiation angle, the light irradiated to a fixed surface is reflected by the reflector 60 so as to concentrate irradiation in a direction for irradiating the actual light. Can increase.
상기 반사갓(60)의 형태는 도시된 모양으로 한정하는 것이 아니며 용도에 따라 그 형태를 달리할 수 있다. 뿐만 아니라, 상기 반사갓(60)은 상기 방열 커버(20)에 접속된 형태로 구성하여 상기 방열 커버(20)와 더불어 소정의 방열기능을 수행하도록 할 수 있다. The shape of the reflection shade 60 is not limited to the shape shown, but may vary in shape depending on the intended use. In addition, the reflector 60 may be configured to be connected to the heat dissipation cover 20 to perform a predetermined heat dissipation function together with the heat dissipation cover 20.
한편, 본 발명의 엘이디 램프는 AC 타입으로 구성되도록 함으로써 기존의 일반 형광등 소켓(52)에도 사용하는 것이 가능하다.On the other hand, the LED lamp of the present invention can be used in the conventional ordinary fluorescent lamp socket 52 by being configured in the AC type.
본 발명은 이상에서 살펴본 바와 같이 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.Although the present invention has been shown and described with reference to the preferred embodiments as described above, it is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various modifications and variations are possible without departing from the spirit of the present invention and equivalents of the claims to be described below.
무radish

Claims (7)

  1. 엘이디(LED) 램프에 있어서,In the LED lamp,
    빛을 확산하기 위한 원통형 산광기(diffuser);Cylindrical diffusers for diffusing light;
    상기 원통형 산광기 내부에 360도 안착되며, 도광판 뒷면에 도트 패턴 가공된 발광형 광학 시트(optical sheet); 및A light emitting optical sheet seated 360 degrees inside the cylindrical diffuser and having a dot pattern processed on the backside of the light guide plate; And
    외부로부터 접속 단자를 통해 전원을 인가받아 상기 원통형 산광기 내부로 빛을 조사하기 위한 하나 이상의 엘이디(LED) 모듈을 포함하는 것을 특징으로 하는 LED 램프.LED light, characterized in that it comprises one or more LED (LED) module for irradiating light into the cylindrical diffuser by receiving power from the outside through the connection terminal.
  2. 제 1항에 있어서,The method of claim 1,
    상기 엘이디 모듈의 피씨비 후면에 밀착 설치되어 엘이디 모듈로부터 발생되는 열을 방열하기 위한 방열 커버를 더 포함하는 것을 특징으로 하는 LED 램프.The LED lamp further comprises a heat dissipation cover installed in close contact with the back of the LED module to radiate heat generated from the LED module.
  3. 제 2항에 있어서,The method of claim 2,
    고정되는 면 방향으로 조사되는 빛을 반사하여 조사하고자 하는 방향으로 빛을 집중 조사하기 위한 반사갓을 더 포함하는 것을 특징으로 하는 LED 램프.LED lamp, characterized in that it further comprises a reflector for focusing the light in the direction to be reflected by reflecting the light irradiated in the direction of the fixed surface.
  4. 제 3항에 있어서,The method of claim 3, wherein
    상기 반사갓은 상기 방열 커버에 접속되어 방열기능을 수행하도록 구성된 것을 특징으로 하는 LED 램프. The reflector is connected to the heat dissipation cover LED lamp, characterized in that configured to perform a heat dissipation function.
  5. 제 1항에 있어서,The method of claim 1,
    상기 발광형 광학 시트는,The light emitting optical sheet,
    엘이디 모듈로부터 조사되는 빛을 도광판을 통해 전체 면적으로 분포시키고, 원통형 산광기를 이용하여 균일한 밝기의 면광원으로 변형시키기 위한 도광판층; 및A light guide plate layer for distributing light emitted from the LED module to the entire area through the light guide plate and transforming the light into a surface light source of uniform brightness using a cylindrical diffuser; And
    상기 원통형 산광기 전 영역에서 휘도분포가 균일하게 되도록 상기 도광판 뒷면에 광산란 도트 패턴이 형성된 광산란층을 포함하며,It includes a light scattering layer formed with a light scattering dot pattern on the back of the light guide plate so that the luminance distribution is uniform in the entire area of the cylindrical diffuser,
    상기 도광판층 앞면은 측광을 정면광으로 바꾸기 위한 굴곡층이 형성된 것을 특징으로 하는 LED 램프.LED light, characterized in that the front surface of the light guide plate layer is formed with a bending layer for converting the metering to front light.
  6. 제 5항에 있어서,The method of claim 5,
    상기 발광형 광학 시트는,The light emitting optical sheet,
    상기 엘이디 모듈이 일 측에만 설치된 경우, 빛이 조사되는 시작 위치에서부터 반대 방향으로 도트 패턴 직경이 순차적으로 넓게 패턴 가공된 것을 특징으로 하는 LED 램프.When the LED module is installed on only one side, the LED lamp, characterized in that the pattern pattern of the dot pattern diameter is sequentially wide in the opposite direction from the start position of the light irradiation.
  7. 제 5항에 있어서,The method of claim 5,
    상기 발광형 광학 시트는,The light emitting optical sheet,
    상기 엘이디 모듈이 양측에 설치된 경우, 빛이 조사되는 양쪽으로부터 중앙까지 도트 패턴 직경이 순차적으로 넓게 패턴 가공된 것을 특징으로 하는 LED 램프.When the LED module is installed on both sides, the LED lamp characterized in that the dot pattern diameter is sequentially patterned from both sides to the center of the light is sequentially wide.
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