JP2013175372A - Led fluorescent illumination apparatus - Google Patents
Led fluorescent illumination apparatus Download PDFInfo
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- JP2013175372A JP2013175372A JP2012039465A JP2012039465A JP2013175372A JP 2013175372 A JP2013175372 A JP 2013175372A JP 2012039465 A JP2012039465 A JP 2012039465A JP 2012039465 A JP2012039465 A JP 2012039465A JP 2013175372 A JP2013175372 A JP 2013175372A
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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
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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
- F21K9/20—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/69—Details of refractors forming part of the light source
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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
- 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
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
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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
- 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
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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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
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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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
本発明は、透光性材料からなり、凹凸加工が施された導光拡散体と、導光拡散体と略同じサイズに小型化されたヒートシンクとを設けることで広範囲の配光角が得られるようにしたLED蛍光照明装置に関する。 The present invention provides a light distribution diffuser having a wide range of light distribution by providing a light guide diffuser made of a translucent material and having a concavo-convex process and a heat sink that is miniaturized to approximately the same size as the light guide diffuser. It is related with the made LED fluorescent lighting apparatus.
LED光源蛍光灯は、省エネ,CO2削減,水銀無使用等の優れた特性を持つため、従来の蛍光灯に代わる照明装置として注目されている。しかしながら、LEDの光は、直進的であるため、従来の蛍光灯のような灯具や天井からの反射がないので、LED蛍光照明装置直下は明るく照らされるが、光が照らされない部分が生じ、また、間接光でなく直接光であるため、眩しいという問題点があった。 The LED light source fluorescent lamp has been attracting attention as an illumination device that replaces the conventional fluorescent lamp because it has excellent characteristics such as energy saving, CO 2 reduction, and mercury-free use. However, since the light of the LED is straight, there is no reflection from the lamp or ceiling like a conventional fluorescent lamp, so the portion directly under the LED fluorescent lighting device is illuminated brightly, but there is a portion where the light is not illuminated, There is a problem that it is dazzling because it is not direct light but direct light.
この問題点を解決する技術として、特許文献1に開示された技術が知られている。特許文献1に開示された技術は、LED光源蛍光灯内に、2枚のLED光源基板102を背中合わせになるように配置し、電源を外部に設けることで、照射角度を広げるというものである。(特許文献1を参照。) As a technique for solving this problem, a technique disclosed in Patent Document 1 is known. The technique disclosed in Patent Document 1 is to arrange two LED light source substrates 102 in a LED light source fluorescent lamp so as to be back to back and to provide a power source outside, thereby widening the irradiation angle. (See Patent Document 1)
この従来のLED蛍光照明装置101では、LED光源基板102が2枚必要であり、それに応じた光源数が必要となることから、消費電力に欠点があり、また、背中合わせになるよう配置された2枚のLED光源基板102からの光は、それぞれが、前方のみを照射するため、照射されない箇所が黒い線となって現れ、ユーザに違和感を与えるという問題があった。 In this conventional LED fluorescent lighting device 101, two LED light source substrates 102 are required, and the number of light sources corresponding to the two LED light source substrates 102 is required. Since each of the light from the LED light source substrates 102 irradiates only the front side, the portions that are not irradiated appear as black lines, which gives the user a feeling of strangeness.
このため、少ない光源数で、照射範囲を広げることが可能なLED蛍光照明装置が種々提案されている。例えば、特許文献2のLED蛍光照明装置201は、管体202の内部を、内壁203により、透光性合成樹脂等からなりLED発光照明室でもある第1管体部204と、金属からなる横断面視円弧形状で電源室Bでもある第2管体部205とに二分されている。前記管体202の内部に、水平面と一対の傾斜面とを有する内壁203を、前記水平面を前記管体202の中心より第2管体部205側に位置させ、前記内壁203の水平面の上面にLED発光装置206および蛍光体207を装備し、水平面の下面に電源回路208を装備し、傾斜面に導光拡散体209を装備している。 For this reason, various LED fluorescent lighting apparatuses capable of expanding the irradiation range with a small number of light sources have been proposed. For example, in the LED fluorescent lighting device 201 of Patent Document 2, the inside of the tube body 202 is crossed by the inner wall 203 with the first tube body portion 204 made of a translucent synthetic resin or the like and also the LED light emitting illumination room, and the crossing made of metal. It is divided into the second tubular body part 205 which is a circular arc shape in a plan view and which is also the power supply chamber B. Inside the tubular body 202, an inner wall 203 having a horizontal plane and a pair of inclined surfaces is positioned such that the horizontal plane is closer to the second tubular body portion 205 than the center of the tubular body 202, and is placed on the upper surface of the horizontal plane of the inner wall 203. The LED light emitting device 206 and the phosphor 207 are provided, the power circuit 208 is provided on the lower surface of the horizontal plane, and the light guide diffuser 209 is provided on the inclined surface.
このLED蛍光照明装置201によれば、水平面と一対の傾斜面とを有する内壁203を、前記水平面の両端を金属製の第2管体部205の端縁に連接して、内壁203と金属製の第2管体部205とを熱伝導的に連続させ、内壁203の水平面の上面にLED発光装置206及び蛍光体207を装備し、水平面の下面に電源回路208を装備し、傾斜面に導光拡散体209を装備して、内壁203の略全面より蛍光光線をLED発光照明室Aである第1管体部204内で乱反射させることにより照射範囲を取付面側へも拡大することができる。 According to this LED fluorescent lighting device 201, an inner wall 203 having a horizontal plane and a pair of inclined surfaces is connected to both ends of the horizontal plane with the end edges of the second metal tube portion 205, and the inner wall 203 and the metal Of the inner wall 203 is equipped with the LED light emitting device 206 and the phosphor 207 on the upper surface of the inner wall 203, the power circuit 208 is installed on the lower surface of the horizontal surface, and is led to the inclined surface. Equipped with the light diffuser 209, the irradiation range can be expanded to the mounting surface side by irregularly reflecting the fluorescent light from the substantially entire surface of the inner wall 203 within the first tubular portion 204, which is the LED light emitting illumination chamber A. .
しかしながら、従来のLED蛍光照明装置201では、LED光源からの光を、第1管体部204に向け発射し、第1管体部204よりの反射光線を導光拡散体209で再反射させる必要があり、前記反射光線を再反射させるためには、三層構造からなる導光拡散体209を、内壁203の傾斜面にアルミ箔を用いて接着させなければならず、製造過程が複雑でコスト高となる問題があった。 However, in the conventional LED fluorescent lighting device 201, it is necessary to emit light from the LED light source toward the first tube portion 204 and re-reflect the reflected light from the first tube portion 204 by the light guide diffuser 209. In order to re-reflect the reflected light, the light guide diffuser 209 having a three-layer structure must be bonded to the inclined surface of the inner wall 203 using aluminum foil, which makes the manufacturing process complicated and costly. There was a problem that would be high.
また、LED発光照明室Aである第1管体部204と、電源回路208を装備した電源室Bとなっている第2管体部205とが内壁203によって遮られており、照射されない箇所が90度を超す範囲で存在していた。 In addition, the first tube portion 204 that is the LED light emitting illumination chamber A and the second tube portion 205 that is the power supply chamber B equipped with the power supply circuit 208 are blocked by the inner wall 203, and there are places that are not irradiated. It existed in a range exceeding 90 degrees.
そこで、本発明が解決しようとする課題は、製造工程の簡素化・低コスト化が可能で、配光角を取付器具側(天井面,壁面等)へ拡大できるとともに、自然光に近く目に優しいLED蛍光照明装置を提供することである。 Therefore, the problem to be solved by the present invention is that the manufacturing process can be simplified and the cost can be reduced, the light distribution angle can be expanded to the fixture side (ceiling surface, wall surface, etc.), and close to natural light and friendly to the eyes. An LED fluorescent lighting device is provided.
この発明は、前記課題を解決するためになされたもので、請求項1に記載のLED蛍光照明装置は、点灯回路を有する基板を把持し、基板で発生する熱を放熱するヒートシンクと、点灯回路を有する基板と、該基板のおもて面に設けられた平板状のLED光源部と、該ヒートシンク及び該基板並びに該LED光源部を収容する透光性材料からなるカバーとを備えるLED蛍光照明装置において、表面に凹凸加工処理が施された透光性材料からなる導光拡散体を備え、前記導光拡散体は、前記LED光源部から照射された光が、導光拡散体内部において、凹凸加工処理により形成された表面の凹凸により乱反射し、乱反射した光が更に反射するよう光学設計された形状に加工されていることを特徴としている。 This invention was made in order to solve the said subject, The LED fluorescent lighting apparatus of Claim 1 hold | maintains the board | substrate which has a lighting circuit, The heat sink which thermally radiates the heat | fever which generate | occur | produces in a board | substrate, A lighting circuit LED fluorescent lighting comprising: a substrate having a flat plate-like LED light source unit provided on the front surface of the substrate; and a cover made of a light-transmitting material that accommodates the heat sink, the substrate, and the LED light source unit The apparatus comprises a light guide diffuser made of a translucent material having an uneven surface processed on the surface, and the light guide diffuser has the light emitted from the LED light source part inside the light guide diffuser. It is characterized by being irregularly reflected by the unevenness of the surface formed by the unevenness processing and processed into a shape that is optically designed so that the irregularly reflected light is further reflected.
請求項1に記載のLED蛍光照明装置によれば、導光拡散体は、透光性材料からなり、凹凸加工処理が施され、表面に凹凸が加えられたことで、LED光源部から入射された光が、導光拡散体の内部を透過し、表面の凹凸により乱反射する。そして、導光拡散体は乱反射した光が更に反射するよう光学設計された形状に加工されているので、光の反射が連鎖しLED光源部からの光を多方向に拡散させることができる。 According to the LED fluorescent illumination device according to claim 1, the light guide diffuser is made of a translucent material, subjected to an uneven processing treatment, and an uneven surface is added, so that the light is incident from the LED light source unit. The transmitted light passes through the inside of the light guide diffuser and is irregularly reflected by the irregularities on the surface. And since the light guide diffuser is processed into an optically designed shape so that the irregularly reflected light is further reflected, the light reflection is chained and the light from the LED light source unit can be diffused in multiple directions.
請求項2に記載のLED蛍光照明装置は、請求項1において、前記LED光源部のLEDに有機エレクトロルミネッセンスを用いることを特徴としている。 The LED fluorescent lighting device according to claim 2 is characterized in that, in claim 1, organic electroluminescence is used for the LED of the LED light source section.
請求項2に記載のLED蛍光照明装置によれば、請求項1の効果に加えて、LED光源部に有機エレクトロルミネッセンス(以下、有機ELという。)を用いることで、発光効率は高いが、発熱が少なく、また、有機EL自体が発光するため電圧が低く抑えられ、消費電力を削減することができる。 According to the LED fluorescent lighting device according to claim 2, in addition to the effect of claim 1, by using organic electroluminescence (hereinafter referred to as organic EL) for the LED light source part, the luminous efficiency is high, but heat is generated. In addition, since the organic EL itself emits light, the voltage can be kept low and the power consumption can be reduced.
請求項3に記載のLED蛍光照明装置は、請求項1又は請求項2において、前記カバーは長尺の蛍光灯状の管体であり、前記ヒートシンク及び前記基板並びに前記LED光源部は長尺で、前記LED光源部は、前記基板上に管体長手方向に一列に配置されていること特徴としている。 According to a third aspect of the present invention, there is provided the LED fluorescent lighting device according to the first or second aspect, wherein the cover is a long fluorescent lamp-like tube, and the heat sink, the substrate, and the LED light source unit are long. The LED light source units are arranged in a line in the longitudinal direction of the tube on the substrate.
請求項3に記載のLED蛍光照明装置によれば、カバーの形状が長尺な蛍光灯状の管体であり、ヒートシンク及び基板並びにLED光源部も長尺であり、LED光源部は基板上に管体長手方向に一列に配置されているため、請求項1又は請求項2の効果を奏する照明装置として、従来の蛍光灯に代替させることができる。 According to the LED fluorescent lighting device of claim 3, the cover is a long fluorescent lamp-like tube, the heat sink and the substrate and the LED light source unit are also long, and the LED light source unit is on the substrate. Since they are arranged in a line in the longitudinal direction of the tubular body, a conventional fluorescent lamp can be used as an illumination device that exhibits the effect of claim 1 or claim 2.
請求項4に記載のLED蛍光照明装置は、請求項3おいて、前記導光拡散体の凹部は、前記LED光源部のおもて面と向かい合わせになるように設けられ、該LED光源部から照射される光を受容する受光面と、縦断面視ハの字となるように設けられ、前記ヒートシンクを把持する一対の傾斜面とで構成されることを特徴としている。 The LED fluorescent lighting device according to claim 4 is the LED light source unit according to claim 3, wherein the concave portion of the light guide diffuser is provided so as to face the front surface of the LED light source unit. The light receiving surface is configured to include a light receiving surface that receives the light emitted from the light source and a pair of inclined surfaces that are provided in a cross-sectional view and have a shape of a letter C in a longitudinal section.
請求項4に記載のLED蛍光照明装置によれば、請求項3の効果に加えて、導光拡散体の受光面が、LED光源部のおもて面と向かい合うように配されているので、LED特有の直進的な光を効率的に受光することができる。また、導光拡散体の形状を縦断面視略三日月型としたことにより、導光拡散体内で乱反射した光を三日月型の曲面で受光できるので、より効率的な反射の連鎖が起き、導光拡散体の三日月型曲面部の全面から広範囲に照射できる。 According to the LED fluorescent lighting device of claim 4, in addition to the effect of claim 3, the light receiving surface of the light guide diffuser is arranged so as to face the front surface of the LED light source part. The straight light characteristic of the LED can be received efficiently. In addition, the light guide diffuser has a substantially crescent shape when viewed in a longitudinal section, so that light that has been irregularly reflected in the light guide diffuser can be received by a crescent-shaped curved surface. It can irradiate a wide range from the entire surface of the crescent-shaped curved surface of the diffuser.
請求項5に記載のLED蛍光照明装置は、請求項4において、前記導光拡散体は、前記傾斜面のそれぞれに、管体長手方向に延びる突部(又は溝部)が設けられており、前記ヒートシンクは、前記突部と係合する管体長手方向に延びる溝部(又は突部)が設けられており、前記導光拡散体の突部(又は溝部)が前記ヒートシンクの溝部(又は突部)に挿入されて係合することにより、該導光拡散体と該ヒートシンクとが嵌合することを特徴としている。 The LED fluorescent lighting device according to claim 5 is the LED fluorescent lighting device according to claim 4, wherein the light guide diffuser is provided with a protruding portion (or a groove portion) extending in a longitudinal direction of the tube on each of the inclined surfaces. The heat sink is provided with a groove (or protrusion) extending in the longitudinal direction of the tubular body to be engaged with the protrusion, and the protrusion (or groove) of the light guide diffuser is the groove (or protrusion) of the heat sink. The light guide diffuser and the heat sink are fitted together by being inserted into and engaged with.
請求項5に記載のLED蛍光照明装置によれば、請求項4の効果に加えて、導光拡散体の傾斜面に突部(又は溝部)を設け、ヒートシンンクに溝部(又は突部)を設けたことにより、導光拡散体の傾斜面とヒートシンンクとを嵌合させて管体内において導光拡散体の落下を防止するとともに、導光拡散体の熱を基板及びLED光源部の熱とともに放熱することができる。 According to the LED fluorescent lighting device of the fifth aspect, in addition to the effect of the fourth aspect, the protrusion (or groove) is provided on the inclined surface of the light guide diffuser, and the groove (or protrusion) is provided on the heat sink. As a result, the inclined surface of the light guide diffuser and the heat sink are fitted to prevent the light guide diffuser from falling in the tube, and the heat of the light guide diffuser is dissipated together with the heat of the substrate and the LED light source unit. be able to.
この発明によれば、製造工程の簡素化・低コスト化が可能で、配光角を取付器具側(天井面,壁面等)へ拡大できるとともに、自然光に近く目に優しいLED蛍光照明装置を提供することができる。 According to the present invention, the manufacturing process can be simplified and the cost can be reduced, the light distribution angle can be expanded to the fixture side (ceiling surface, wall surface, etc.), and an LED fluorescent lighting device that is close to natural light and is easy on the eyes is provided. can do.
以下、本発明を適用した具体的な実施の形態について、図面を参照しながら詳細に説明する。本発明は、例えば、図1及び図2に示すような構成のLED蛍光照明装置1に適用される。 Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. The present invention is applied to, for example, an LED fluorescent lighting device 1 configured as shown in FIGS.
先ず、図1,図2及び図5を参照して、LED蛍光照明装置1の構成の概略について説明する。このLED蛍光照明装置1は、図1に示すように、基板4で発生する熱を放熱させるヒートシンク6と、裏面がヒートシンク6と密着するよう設けられ、LED光源部3を支持する基板4と、基板4のおもて面と密着するように設けられているLED光源部3と、LED光源部3及び基板4並びにヒートシンンク6を把持し、LED光源部3からの光を内部で拡散させて外部に向けて照射する導光拡散体5と、ヒートシンク6を挾持するように設けられ、LED光源部3と基板4とする導光拡散体5とヒートシンク6とを収容する管体2と、管体2の両端に設けられた一対のエンドキャップ16a,16bと、エンドキャップ16a,16bに備えられた支持端子部17a,17bを主要部として備えている。 First, with reference to FIG.1, FIG2 and FIG.5, the outline of a structure of the LED fluorescent lighting apparatus 1 is demonstrated. As shown in FIG. 1, the LED fluorescent lighting device 1 includes a heat sink 6 that dissipates heat generated by the substrate 4, a substrate 4 that is provided so that the back surface is in close contact with the heat sink 6, and supports the LED light source unit 3, The LED light source unit 3 provided so as to be in close contact with the front surface of the substrate 4, the LED light source unit 3, the substrate 4, and the heat sink 6 are held, and the light from the LED light source unit 3 is diffused inside to externally. A light guide diffuser 5 that irradiates the light source, a heat sink 6, and a tube body 2 that houses the light guide diffuser 5 and the heat sink 6 as the LED light source unit 3 and the substrate 4; 2 includes a pair of end caps 16a and 16b provided at both ends, and support terminal portions 17a and 17b provided in the end caps 16a and 16b as main parts.
管体2は、ガラス又は樹脂等の透光性材料からなり、図2に示すように、長尺で、長手方向に沿って一部が開口となっており、開口端辺10aと開口端辺10bとによって、ヒートシンク6が挾持された構成になっている。 The tube body 2 is made of a light-transmitting material such as glass or resin, and is long and partially open along the longitudinal direction as shown in FIG. 2, and has an opening edge 10a and an opening edge. 10b, the heat sink 6 is held.
管体2は、従来の蛍光灯では、真空状態にした管の中に微量の水銀の蒸気を入れることで、そこに電気を流して発光させていたのに対し、光源をLEDとしたことで、中空であればよく、必ずしも完全密閉されることを必要としない。 The tube 2 is a conventional fluorescent lamp in which a small amount of mercury vapor is put into a vacuumed tube to cause electricity to flow therethrough, while the light source is an LED. As long as it is hollow, it does not necessarily need to be completely sealed.
LED光源部3は、例えば3mm×2.5mmの矩形状のチップである。また、LED光源部3は、例えば青又はそれよりも波長の短い発光ダイオードのチップを蛍光体で覆った構造をしており、白色に発光する。なお、LED光源部3は、基板4上に収まる大きさであればよく、上記大きさに限定されない。また、LED光源部3は、発光層が有機化合物からなる有機ELを用いてもよい。 The LED light source unit 3 is, for example, a 3 mm × 2.5 mm rectangular chip. Further, the LED light source unit 3 has a structure in which a light emitting diode chip having a wavelength of blue or shorter than that is covered with a phosphor, and emits white light. The LED light source unit 3 may be of a size that can be accommodated on the substrate 4 and is not limited to the above size. Further, the LED light source unit 3 may use an organic EL whose light emitting layer is made of an organic compound.
LED光源部3は、基板4の上面に、複数個、適宜の間隔で(又は隙間なく)管体長手方向に一列に配置され、発光の際に生じる熱は、基板4を介してヒートシンク6に伝導し、そこから放出されるようになっている。 A plurality of LED light source units 3 are arranged on the upper surface of the substrate 4 in a row in the longitudinal direction of the tube at an appropriate interval (or without a gap), and heat generated during light emission is transferred to the heat sink 6 via the substrate 4. Conducted and released from there.
基板4は、LEDを点灯させるための回路を有し、例えば、ガラスエポキシ樹脂からなる本体に配線パターンが形成されている。なお、基板4の本体は、アルミニウム,セラミック及びガラス等の放熱性を有するものとしてもよい。 The board | substrate 4 has a circuit for lighting LED, for example, the wiring pattern is formed in the main body which consists of glass epoxy resins. In addition, the main body of the board | substrate 4 is good also as what has heat dissipation, such as aluminum, a ceramic, and glass.
基板4は、上面にLED光源部3を実装し、管体長手方向に長尺に、裏面がヒートシンク6と密着するよう設けられている。LED点灯回路で発生する熱は、基板4及びヒートシンク6を介して放出される。 The substrate 4 is provided with the LED light source unit 3 mounted on the upper surface, elongated in the longitudinal direction of the tubular body, and in contact with the heat sink 6 on the back surface. Heat generated in the LED lighting circuit is released through the substrate 4 and the heat sink 6.
エンドキャップ16a,16bは、管体2の両端に設けられ、直管型蛍光灯と差し替えが可能なように、直管型蛍光灯と同じエンドキャップを用いている。また、エンドキャップ16a,16bのそれぞれには、直管型蛍光灯の端子と同様の支持端子部17a,17bを備えている。したがって、LED蛍光照明装置1は、直管型蛍光灯に対応した照明器具のソケットS(図示せず)に、そのまま装着することができる。 The end caps 16a and 16b are provided at both ends of the tube body 2, and the same end cap as that of the straight tube fluorescent lamp is used so that the tube can be replaced with the straight tube fluorescent lamp. Each of the end caps 16a and 16b includes support terminal portions 17a and 17b similar to the terminals of the straight tube fluorescent lamp. Therefore, the LED fluorescent lighting device 1 can be mounted as it is on the socket S (not shown) of the lighting fixture corresponding to the straight tube fluorescent lamp.
次に、図1,図3,図6,図7及び図8を参照して、導光拡散体5の構成を詳細に説明する。この導光拡散体5は、LED光源部3から照射される光を乱反射させ、照射角度を拡大させるために設けられている。このため、乱反射した光が更に反射するような形状、例えば、管体長手方向に長尺で、縦断面視略三日月形に加工されている。なお、導光拡散体5は、乱反射した光が更に反射するような形状であればよく、前記形状に限定されない。 Next, the configuration of the light guide diffuser 5 will be described in detail with reference to FIGS. 1, 3, 6, 7 and 8. The light guide diffuser 5 is provided in order to diffusely reflect the light emitted from the LED light source unit 3 and expand the irradiation angle. For this reason, the shape in which the irregularly reflected light is further reflected, for example, is elongated in the longitudinal direction of the tube and processed into a substantially crescent shape in a longitudinal section view. In addition, the light guide diffuser 5 should just be a shape in which the irregularly reflected light further reflects, and is not limited to the said shape.
導光拡散体5は、LED光源部3から照射される光を受容する平面状の受光面9と、ヒートシンク6を把持する一対の傾斜面7a,7bと、傾斜面7a,7bのそれぞれに設けられ、ヒートシンク6の突部14a,14bと係合する溝部8a,8bと、導光拡散体5内で乱反射した光を曲面で受光し、より効率的な反射の連鎖を起こす曲面部11とを主要部として備えている。 The light guide diffuser 5 is provided on each of a planar light receiving surface 9 that receives light emitted from the LED light source unit 3, a pair of inclined surfaces 7a and 7b that hold the heat sink 6, and the inclined surfaces 7a and 7b. Groove portions 8a and 8b engaged with the protrusions 14a and 14b of the heat sink 6, and the curved surface portion 11 which receives light irregularly reflected in the light guide diffuser 5 by a curved surface and causes a more efficient chain of reflection. It is provided as a main part.
導光拡散体5は、透光性材料からなり、多層構造ではなく単一の素材(実施例においてはアクリルを使用している)から形成されているので、製造工程を簡略化することができ、製造コストを抑えることができる。なお、導光拡散体5は、ガラスや樹脂等の透光性材料から形成されていればよく、素材は限定されない。また、導光拡散体5は、レンズの形態に限定されず、フィルムの形態としてもよい。 The light guide diffuser 5 is made of a translucent material and is formed from a single material (acrylic is used in the embodiment) instead of a multilayer structure, so that the manufacturing process can be simplified. Manufacturing costs can be reduced. In addition, the light guide diffuser 5 should just be formed from translucent materials, such as glass and resin, and a raw material is not limited. Moreover, the light guide diffuser 5 is not limited to a lens form, and may be a film form.
受光面9は、平面状に形成されており、LED光源部3のおもて面と向かい合わせになるように設けられ、LED光源部3のおもて面との距離を3mmとしている。また、受光面9及び曲面部11間の導光拡散体の厚さを2.4mmとしている。 The light receiving surface 9 is formed in a flat shape, is provided so as to face the front surface of the LED light source unit 3, and the distance from the front surface of the LED light source unit 3 is 3 mm. Further, the thickness of the light guide diffuser between the light receiving surface 9 and the curved surface portion 11 is 2.4 mm.
これは、光学設計に基づいて最適な値を定めたものである。すなわち、LED光源部3のおもて面に、受光面9及び曲面部11を近づけるほど、曲面部11の曲率が小さくなり形状が平面に近くなるので反射の連鎖が起こりにくくなる一方、LED光源部3のおもて面から、受光面9及び曲面部11を遠ざけるほど、曲面部11の曲率が大きくなり光が軌道方向に集中してしまうので照度にバラツキが生じることを考慮したものである。 This is an optimum value determined based on the optical design. That is, the closer the light receiving surface 9 and the curved surface portion 11 to the front surface of the LED light source portion 3, the smaller the curvature of the curved surface portion 11 and the closer the shape is to a flat surface. This is because the curvature of the curved surface portion 11 increases and the light concentrates in the orbital direction as the distance between the light receiving surface 9 and the curved surface portion 11 increases from the front surface of the portion 3, so that the illuminance varies. .
受光面9の幅は、平面上のLEDから照射される光の角度である120°であることから、LED光源部3から照射される直進的な光の略全てを受光できるように定められている。 Since the width of the light receiving surface 9 is 120 °, which is the angle of light emitted from the LEDs on the plane, it is determined so that substantially all of the straight light emitted from the LED light source unit 3 can be received. Yes.
傾斜面7a,7bに設けられた溝部8a,8bは、ヒートシンク6の把持部12に設けられた突部14a,14bに挿入されて係合することにより、導光拡散体5がヒートシンク6に嵌合される。なお、この溝部8a,8bを突形状とし、突部14a,14bを溝形状としてもよい。また、傾斜面7a,7bとヒートシンク6との係合の仕方については、スライド挿入でもよいし、弾性力を利用して嵌合させてもよい。 The groove portions 8 a and 8 b provided on the inclined surfaces 7 a and 7 b are inserted into and engaged with the protrusions 14 a and 14 b provided on the grip portion 12 of the heat sink 6, so that the light guide diffuser 5 is fitted to the heat sink 6. Combined. The groove portions 8a and 8b may have a protruding shape, and the protruding portions 14a and 14b may have a groove shape. Moreover, about the method of engagement with the inclined surfaces 7a and 7b and the heat sink 6, slide insertion may be sufficient and you may make it fit using elastic force.
導光拡散体5の傾斜面7a,7bに設けられた溝部8a,8b及び曲面部11間の導光拡散体の厚さは、1mmとしている。これは、光学設計に基づいて最適な値を定めたものである。すなわち、導光拡散体内で乱反射した光が取付器具側(天井面及び壁面)に届き、その光が照明器具の反射板で広がるように考慮したものである。 The thickness of the light guide diffuser between the groove portions 8a and 8b and the curved surface portion 11 provided on the inclined surfaces 7a and 7b of the light guide diffuser 5 is set to 1 mm. This is an optimum value determined based on the optical design. That is, it is considered that the light irregularly reflected in the light guide diffuser reaches the fixture side (ceiling surface and wall surface) and spreads on the reflector of the lighting fixture.
曲面部11は、導光拡散体5内で乱反射した光の反射の連鎖が起きるように、緩やかな曲面状に成形されている。導光拡散体5内で乱反射により拡散した光は、曲面部11の全面から広範囲に照射される。 The curved surface portion 11 is shaped into a gently curved surface so that a chain of reflection of light irregularly reflected in the light guide diffuser 5 occurs. The light diffused by irregular reflection in the light guide diffuser 5 is irradiated over a wide area from the entire surface of the curved surface portion 11.
導光拡散体5は、表面に、コンプレッサーによって、研磨材を混ぜた圧縮空気を吹き付けるブラスト加工が施されており、ブラスト加工によって形成される凹凸のサイズは、1μから1mmとされ、曲面部11の形状、及び、このブラスト加工によって表面に形成された凹凸により、LED光源部3から受光した光を乱反射させることを可能にし、発光方向を光学設計技術により自在に変化させることができる。なお、導光拡散体5の表面の凹凸は、ブラスト加工に限られず、金型等を用いた一体成形によって形成してもよい。 The light guide diffuser 5 is blasted on the surface by blowing compressed air mixed with an abrasive by a compressor, and the size of the irregularities formed by the blasting is 1 μm to 1 mm. And the irregularities formed on the surface by this blasting process, the light received from the LED light source unit 3 can be irregularly reflected, and the light emission direction can be freely changed by an optical design technique. The unevenness on the surface of the light guide diffuser 5 is not limited to blasting, and may be formed by integral molding using a mold or the like.
次に、図1及び図4を参照して、ヒートシンク6の構成を説明する。このヒートシンク6は、導光拡散体5と略同じサイズに小型化されており、LED光源部3と基板4とを収容し、管体2の内側方向に突出する把持部12と、把持部12の両側面に位置する凹部13a,13bと、導光拡散体5と嵌合するための突部14a,14bと、基板4の裏面側に位置し、管体長手方向に配列された複数枚のフィン部15とを主要部として備えている。 Next, the configuration of the heat sink 6 will be described with reference to FIGS. 1 and 4. The heat sink 6 is miniaturized to approximately the same size as the light guide diffuser 5. The heat sink 6 accommodates the LED light source unit 3 and the substrate 4 and protrudes inward of the tube body 2. Recesses 13a, 13b located on both sides of the projection, protrusions 14a, 14b for fitting with the light guide diffuser 5, and a plurality of sheets located on the back side of the substrate 4 and arranged in the longitudinal direction of the tube The fin part 15 is provided as a main part.
ヒートシンク6は、例えばアルミニウム等の軽量かつ熱伝導性が高い材料からなり、把持部12と、凹部13a,13bと、突部14a,14bとフィン部15とが縦断面視コ字状に一体成形されている。 The heat sink 6 is made of a light material having high thermal conductivity such as aluminum, for example, and the grip portion 12, the recesses 13a and 13b, the protrusions 14a and 14b, and the fin portion 15 are integrally formed in a U-shape in a longitudinal section. Has been.
ヒートシンク6は、基板4の裏面と密着し、導光拡散体5に嵌合するよう設けられているため、基板4及び導光拡散体5との接触面から伝導した熱を、フィン部15を介して効率よく放出することができる。なお、この突部14a,14bは、溝形状とし、溝部8a,8bを突形状としてもよい。 Since the heat sink 6 is provided in close contact with the back surface of the substrate 4 and fitted to the light guide diffuser 5, the heat conducted from the contact surface between the substrate 4 and the light guide diffuser 5 is transferred to the fin portion 15. Can be released efficiently. The protrusions 14a and 14b may have a groove shape, and the groove portions 8a and 8b may have a protrusion shape.
ヒートシンク6は、フィン部15の各先端が描く軌跡を断面視円弧状としたことで管体2と組み合わせた時に、全体として円筒状の一般の蛍光灯と同様の形態となり、既存の直管型蛍光灯用のエンドキャップを取り付けることができる。 When the heat sink 6 is combined with the tubular body 2 by making the trajectory drawn by each tip of the fin portion 15 into a circular arc when viewed in cross section, the heat sink 6 has a shape similar to that of a general cylindrical fluorescent lamp as a whole. End caps for fluorescent lamps can be attached.
続いて、LED蛍光照明装置1の動作について説明する。先ず、ユーザが電源を入れると基板4の回路に電源が供給されてLED光源部3が発光する。LED光源部3から照射された光の角度は120°であり、LED光源部3と向かい合うように設けられた、導光拡散体5の受光面9が、LED光源部3から照射された光の略全てを受光する。 Next, the operation of the LED fluorescent lighting device 1 will be described. First, when the user turns on the power, the power is supplied to the circuit of the substrate 4 and the LED light source unit 3 emits light. The angle of the light emitted from the LED light source unit 3 is 120 °, and the light receiving surface 9 of the light guide diffuser 5 provided so as to face the LED light source unit 3 emits the light emitted from the LED light source unit 3. Receives almost all light.
導光拡散体5の受光面9で受光した光は、導光拡散体5内を透過し、曲面部11の形状、及び、導光拡散レンズ5の表面にブラスト加工が施されたことによって、曲面部11で乱反射し、乱反射した光が、更に、導光拡散体内を透過して曲面部11で乱反射する。この乱反射の連鎖によって、光が導光拡散体5内を広範囲に拡散することとなる。 The light received by the light receiving surface 9 of the light guide diffuser 5 is transmitted through the light guide diffuser 5, and the shape of the curved surface portion 11 and the surface of the light guide diffuser lens 5 are blasted. The light irregularly reflected by the curved surface portion 11 is diffusely reflected by the curved surface portion 11 through the light guide diffuser. Due to this chain of irregular reflections, light diffuses in the light guide diffuser 5 over a wide range.
導光拡散体5内を広範囲に拡散した光は、導光拡散体5の曲面部11から管体2に向けて照射され、管体2は透光性材料からなるので、管体2に向けて照射された光は、そのまま管体2を透過して、管体2の全周面から外部空間へと均一に照射される。 The light diffused in the light guide diffuser 5 over a wide range is irradiated from the curved surface portion 11 of the light guide diffuser 5 toward the tube 2, and the tube 2 is made of a translucent material. The light irradiated in this way passes through the tube 2 as it is, and is uniformly irradiated from the entire circumferential surface of the tube 2 to the external space.
LED蛍光照明装置1は、管体2が、ヒートシンク6を挾持しており、使用にあたっては、ヒートシンク6が取付器具側に位置するように設置する。ヒートシンク6は導光拡散レンズ5と略同じサイズに小型化されているため、ヒートシンク6によって遮蔽される部分が少なくなるので、管体2から照射される光の照射角度を340°まで拡大することができる。これにより、取付器具側(天井面及び壁面)に光が届き、その光が照明器具の反射板で広がるので、事実上、照射範囲を360°まで拡大でき、ユーザに違和感を与えることがない。また、導光拡散体5の形状は、目的に応じた形状に変更可能であり、例えば、ユーザが望む照射角度・方向になるように変えることもできる。 In the LED fluorescent lighting device 1, the tube body 2 holds the heat sink 6, and in use, the LED heat illuminating apparatus 1 is installed so that the heat sink 6 is positioned on the attachment device side. Since the heat sink 6 is downsized to approximately the same size as the light guide diffusion lens 5, the portion shielded by the heat sink 6 is reduced, so that the irradiation angle of light emitted from the tube body 2 is expanded to 340 °. Can do. Thereby, light reaches the fixture side (ceiling surface and wall surface), and the light spreads by the reflector of the lighting fixture. Therefore, the irradiation range can be practically expanded to 360 °, and the user does not feel uncomfortable. Moreover, the shape of the light guide diffuser 5 can be changed to a shape according to the purpose. For example, the light guide diffuser 5 can be changed to have an irradiation angle / direction desired by the user.
最後に、LED蛍光照明装置1の特性を示す。図9は、LED蛍光照明装置1の実測値に基づく照射範囲を示すグラフである。図9に示すように、LED光源部3からの光が略340°の角度に照射されていることが分かる。照射されていない残りの角度20°については、前述の通り、照明器具の反射板で、反射によって光が届く仕組みになっている。 Finally, the characteristics of the LED fluorescent lighting device 1 are shown. FIG. 9 is a graph showing an irradiation range based on actual measurement values of the LED fluorescent lighting device 1. As shown in FIG. 9, it can be seen that the light from the LED light source unit 3 is irradiated at an angle of approximately 340 °. As for the remaining angle of 20 ° that has not been irradiated, as described above, light is reflected by the reflection plate of the lighting fixture.
表1は、LED蛍光照明装置1の実測値に基づく照度を他社と比較した表である。
表1が示すように、LED蛍光照明装置1は、消費電力を抑えながらも演色性の高い、自然光に近く目に優しい光を発光することが分かる。このように、LED蛍光照明装置1は、優れた特性を有することが証明された。 As shown in Table 1, it can be seen that the LED fluorescent lighting device 1 emits light that is close to natural light and has high color rendering properties while reducing power consumption. Thus, it was proved that the LED fluorescent lighting device 1 has excellent characteristics.
以上のとおり、本発明によれば、導光拡散レンズ5は、透光性材料からなり、凹凸加工処理が施され、表面に凹凸が加えられたことで、LED光源部3から入射された光が、導光拡散体5の内部を透過し、表面の凹凸により乱反射する。そして、導光拡散体5は乱反射した光が更に反射するような形状に加工されているので、光の反射が連鎖しLED光源部3からの光を多方向に拡散させることができる。 As described above, according to the present invention, the light guide diffusing lens 5 is made of a light-transmitting material, subjected to uneven processing, and has an uneven surface. However, it penetrates the inside of the light guide diffuser 5 and is irregularly reflected by the unevenness of the surface. And since the light guide diffuser 5 is processed into a shape that further reflects the irregularly reflected light, the light reflection is chained and the light from the LED light source unit 3 can be diffused in multiple directions.
また、本発明によれば、LED光源部3に有機エレクトロルミネッセンス(以下、有機ELという。)を用いることで、発光効率は高いが、発熱が少なく、また、有機EL自体が発光するため電圧が低く抑えられ、消費電力を削減することができる。 Further, according to the present invention, by using organic electroluminescence (hereinafter referred to as “organic EL”) for the LED light source unit 3, the luminous efficiency is high, but there is little heat generation, and the voltage is increased because the organic EL itself emits light. Low power consumption can be reduced.
また、本発明によれば、カバーの形状が長尺な蛍光灯状の管体2であり、LED光源部3及び基板4並びにヒートシンク6も長尺であり、LED光源部3は基板4上に管体長手方向に一列に配置されているため、請求項1又は請求項2の効果を奏する照明装置として、従来の蛍光灯に代替させることができる。 Moreover, according to this invention, it is the fluorescent lamp-like tube body 2 with the shape of a cover long, the LED light source part 3, the board | substrate 4, and the heat sink 6 are also long, and the LED light source part 3 is on the board | substrate 4. Since they are arranged in a line in the longitudinal direction of the tubular body, a conventional fluorescent lamp can be used as an illumination device that exhibits the effect of claim 1 or claim 2.
また、本発明によれば、導光拡散体5の受光面9が、LED光源部3のおもて面と向かい合うように配されているので、LED特有の直進的な光を効率的に受光することができる。また、導光拡散体5の形状を縦断面視略三日月型としたことにより、導光拡散体5内で乱反射した光を三日月型の曲面で受光できるので、より効率的な反射の連鎖が起き、導光拡散体5の三日月型曲面部11の全面から広範囲に照射できる。 In addition, according to the present invention, the light receiving surface 9 of the light guide diffuser 5 is disposed so as to face the front surface of the LED light source unit 3, so that the straight light specific to the LED is efficiently received. can do. In addition, since the light guide diffuser 5 has a substantially crescent shape when viewed from the longitudinal section, light reflected irregularly in the light guide diffuser 5 can be received by a crescent-shaped curved surface, so that a more efficient reflection chain occurs. The light can be irradiated over a wide area from the entire surface of the crescent-shaped curved surface portion 11 of the light guide diffuser 5.
さらに、本発明によれば、導光拡散体5の傾斜面7a,7bに溝部(又は突部)8a,8bを設け、ヒートシンンク6に突部(又は溝部)14a,14bを設けたことにより、導光拡散体5の傾斜面7a,7bとヒートシンンク6とを嵌合させて管体2内において導光拡散体5の落下を防止するとともに、導光拡散体5の熱をLED光源部3及び基板4の熱とともに放熱することができる。 Furthermore, according to the present invention, the grooves (or protrusions) 8a and 8b are provided on the inclined surfaces 7a and 7b of the light guide diffuser 5, and the protrusions (or grooves) 14a and 14b are provided on the heat sink 6. The inclined surfaces 7a and 7b of the light guide diffuser 5 and the heat sink 6 are fitted to prevent the light guide diffuser 5 from falling in the tube 2, and the heat of the light guide diffuser 5 is transferred to the LED light source unit 3 and The heat can be dissipated together with the heat of the substrate 4.
なお、本発明は前述した実施の形態のみに限定されるものではなく、本発明の要旨を逸脱しない範囲において種々の変更が可能であることは勿論である。 It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
1 LED蛍光照明装置
2 管体
3 LED光源部
4 基板
5 導光拡散体
6 ヒートシンク
7a,7b 傾斜面
8a,8b 溝部(又は突部)
9 受光面
10a,10b 開口端辺
11 曲面部
12 把持部
13a,13b 凹部
14a,14b 突部(又h溝部)
15 フィン部
16a,16b エンドキャップ
17a,17b 支持端子部
L1,L2,L3 光
S ソケット
101 LED蛍光照明装置
102 光源基板
201 LED蛍光照明装置
202 管体
203 内壁
204 管体部
205 管体部
206 発光装置
207 蛍光体
208 電源回路
209 導光拡散体
DESCRIPTION OF SYMBOLS 1 LED fluorescent lighting apparatus 2 Tube 3 LED light source part 4 Board | substrate 5 Light guide diffuser 6 Heat sink 7a, 7b Inclined surface 8a, 8b Groove part (or protrusion)
9 Light-receiving surface 10a, 10b Open end 11 Curved surface portion 12 Grip portion 13a, 13b Recess
14a, 14b Projection (also h groove)
15 Fin portions 16a, 16b End caps 17a, 17b Support terminal portions L1, L2, L3 Light S Socket 101 LED fluorescent lighting device 102 Light source substrate 201 LED fluorescent lighting device 202 Tube 203 Inner wall 204 Tube portion 205 Tube portion 206 Light emission Device 207 Phosphor 208 Power supply circuit 209 Light guide diffuser
この発明は、前記課題を解決するためになされたもので、請求項1に記載のLED蛍光照明装置は、基板で発生する熱を放熱するヒートシンクと、該ヒートシンクに把持された点灯回路を有する基板と、該基板のおもて面に設けられた平板状のLED光源部と、該ヒートシンク及び該基板並びに該LED光源部を収容する透光性材料からなるカバーとを備えるLED蛍光照明装置において、表面に凹凸加工処理が施された透光性材料からなる導光拡散体を備え、前記導光拡散体は、前記LED光源部から照射された光が、導光拡散体内部において、凹凸加工処理により形成された表面の凹凸により乱反射し、乱反射した光が更に反射するような形状に加工されており、前記カバーは長尺の蛍光灯状の管体であり、前記ヒートシンク及び前記基板並びに前記LED光源部は長尺で、前記LED光源部は、前記基板上に管体長手方向に一列に配置されており、前記導光拡散体は、縦断面視略三日月型に形成されており、前記導光拡散体の凹部は、前記LED光源部のおもて面と向かい合わせになるように設けられ、該LED光源部から照射される光を受容する受光面と、縦断面視ハの字となるように設けられ、前記ヒートシンクを把持する一対の傾斜面とで構成されることを特徴としている。 The present invention has been made to solve the above problems, and the LED fluorescent lighting device according to claim 1 is a substrate having a heat sink that dissipates heat generated in the substrate, and a lighting circuit held by the heat sink. And an LED fluorescent lighting device comprising a flat LED light source unit provided on the front surface of the substrate, and a cover made of a light-transmitting material that houses the heat sink, the substrate, and the LED light source unit. A light guide diffuser made of a translucent material having an uneven surface processed on the surface, wherein the light guide diffuser has an uneven surface processed with light emitted from the LED light source irregularly reflected by unevenness of the surface formed by, are processed into a shape so that the light diffusely reflected is further reflected, wherein the cover is a fluorescent lamp shaped tube long, the heat sink and the group In addition, the LED light source unit is long, the LED light source units are arranged in a line in the longitudinal direction of the tube on the substrate, and the light guide diffuser is formed in a substantially crescent shape in a longitudinal sectional view. The concave portion of the light guide diffuser is provided so as to face the front surface of the LED light source unit, and a light receiving surface that receives light emitted from the LED light source unit, and It is provided so that it may become a character, and is comprised with a pair of inclined surface which hold | grips the said heat sink .
また、請求項1に記載のLED蛍光照明装置によれば、カバーの形状が長尺な蛍光灯状の管体であり、ヒートシンク及び基板並びにLED光源部も長尺であり、LED光源部は基板上に管体長手方向に一列に配置されているため、従来の蛍光灯に代替させることができる。According to the LED fluorescent lighting device of claim 1, the cover is a long fluorescent lamp-like tube, the heat sink and the substrate, and the LED light source unit are also long, and the LED light source unit is a substrate. Since it is arranged in a row in the longitudinal direction of the tube body, it can be replaced with a conventional fluorescent lamp.
さらに、請求項1に記載のLED蛍光照明装置によれば、導光拡散体の受光面が、LED光源部のおもて面と向かい合うように配されているので、LED特有の直進的な光を効率的に受光することができる。また、導光拡散体の形状を縦断面視略三日月型としたことにより、導光拡散体内で乱反射した光を三日月型の曲面で受光できるので、より効率的な反射の連鎖が起き、導光拡散体の三日月型曲面部の全面から広範囲に照射できる。Furthermore, according to the LED fluorescent lighting device of claim 1, since the light receiving surface of the light guide diffuser is disposed so as to face the front surface of the LED light source unit, straight light unique to the LED is obtained. Can be received efficiently. In addition, the light guide diffuser has a substantially crescent shape when viewed in a longitudinal section, so that light that has been irregularly reflected in the light guide diffuser can be received by a crescent-shaped curved surface. It can irradiate a wide range from the entire surface of the crescent-shaped curved surface of the diffuser.
請求項2に記載のLED蛍光照明装置は、請求項1において、前記導光拡散体は、前記傾斜面のそれぞれに、管体長手方向に延びる突部(又は溝部)が設けられており、前記ヒートシンクは、前記突部と係合する管体長手方向に延びる溝部(又は突部)が設けられており、前記導光拡散体の突部(又は溝部)が前記ヒートシンクの溝部(又は突部)に挿入されて係合することにより、該導光拡散体と該ヒートシンクとが嵌合することを特徴としている。According to a second aspect of the present invention, in the LED fluorescent lighting device according to the first aspect, the light guide diffuser is provided with a protrusion (or a groove) extending in the longitudinal direction of the tubular body on each of the inclined surfaces. The heat sink is provided with a groove (or protrusion) extending in the longitudinal direction of the tubular body to be engaged with the protrusion, and the protrusion (or groove) of the light guide diffuser is the groove (or protrusion) of the heat sink. The light guide diffuser and the heat sink are fitted together by being inserted into and engaged with.
請求項2に記載のLED蛍光照明装置によれば、請求項1の効果に加えて、導光拡散体の傾斜面に突部(又は溝部)を設け、ヒートシンンクに溝部(又は突部)を設けたことにより、導光拡散体の傾斜面とヒートシンンクとを嵌合させて管体内において導光拡散体の落下を防止するとともに、導光拡散体の熱を基板及びLED光源部の熱とともに放熱することができる。According to the LED fluorescent lighting device of claim 2, in addition to the effect of claim 1, the protrusion (or groove) is provided on the inclined surface of the light guide diffuser, and the groove (or protrusion) is provided on the heat sink. As a result, the inclined surface of the light guide diffuser and the heat sink are fitted to prevent the light guide diffuser from falling in the tube, and the heat of the light guide diffuser is dissipated together with the heat of the substrate and the LED light source unit. be able to.
請求項3に記載のLED蛍光照明装置は、請求項1又は請求項2において、前記LED光源部のLEDに有機エレクトロルミネッセンスを用いることを特徴としている。According to a third aspect of the present invention, there is provided the LED fluorescent lighting device according to the first or second aspect, wherein organic electroluminescence is used for the LED of the LED light source unit.
請求項3に記載のLED蛍光照明装置によれば、請求項1又は請求項2の効果に加えて、LED光源部に有機エレクトロルミネッセンス(以下、有機ELという。)を用いることで、発光効率は高いが、発熱が少なく、また、有機EL自体が発光するため電圧が低く抑えられ、消費電力を削減することができる。According to the LED fluorescent lighting device of claim 3, in addition to the effect of claim 1 or claim 2, by using organic electroluminescence (hereinafter referred to as organic EL) for the LED light source part, the luminous efficiency is Although it is high, it generates little heat, and the organic EL itself emits light, so that the voltage can be kept low and power consumption can be reduced.
Claims (5)
表面に凹凸加工処理が施された透光性材料からなる導光拡散体を備え、
前記導光拡散体は、前記LED光源部から照射された光が、導光拡散体内部において、凹凸加工処理により形成された表面の凹凸により乱反射し、乱反射した光が更に反射するような形状に加工されていることを特徴とするLED蛍光照明装置。 A heat sink that dissipates heat generated by the substrate, a substrate having a lighting circuit held by the heat sink, a flat LED light source portion provided on the front surface of the substrate, the heat sink, the substrate, and the substrate In an LED fluorescent lighting device comprising a cover made of a translucent material that houses an LED light source unit,
Provided with a light guide diffuser made of a translucent material whose surface has been subjected to uneven processing,
The light guide diffuser is shaped so that the light emitted from the LED light source is irregularly reflected by the irregularities on the surface formed by the irregularity processing inside the light guide diffuser, and the irregularly reflected light is further reflected. An LED fluorescent lighting device that is processed.
前記ヒートシンク及び前記基板並びに前記LED光源部は長尺で、
前記LED光源部は、前記基板上に管体長手方向に一列に配置されていること特徴とする請求項1又は請求項2に記載のLED蛍光照明装置。 The cover is a long fluorescent lamp-like tube,
The heat sink, the substrate, and the LED light source unit are long,
3. The LED fluorescent lighting device according to claim 1, wherein the LED light source units are arranged in a line in a longitudinal direction of a tube on the substrate.
前記導光拡散体の凹部は、前記LED光源部のおもて面と向かい合わせになるように設けられ、該LED光源部から照射される光を受容する受光面と、縦断面視ハの字となるように設けられ、前記ヒートシンクを把持する一対の傾斜面とで構成されることを特徴とする請求項3に記載のLED蛍光照明装置。 The light guide diffuser is formed in a substantially crescent shape when viewed in a longitudinal section,
The concave portion of the light guide diffuser is provided so as to face the front surface of the LED light source unit, and a light receiving surface that receives light emitted from the LED light source unit, The LED fluorescent lighting device according to claim 3, wherein the LED fluorescent lighting device is configured to include a pair of inclined surfaces that hold the heat sink.
前記ヒートシンクは、前記突部と係合する管体長手方向に延びる溝部(又は突部)が設けられており、
前記導光拡散体の突部(又は溝部)が前記ヒートシンクの溝部(又は突部)に挿入されて係合することにより、該導光拡散体と該ヒートシンクとが嵌合することを特徴とする請求項4に記載のLED蛍光照明装置。 The light guide diffuser is provided with protrusions (or grooves) extending in the longitudinal direction of the tube on each of the inclined surfaces,
The heat sink is provided with a groove (or protrusion) extending in the longitudinal direction of the tubular body to be engaged with the protrusion.
The light guide diffuser and the heat sink are fitted together by inserting and engaging the protrusion (or groove) of the light guide diffuser into the groove (or protrusion) of the heat sink. The LED fluorescent lighting device according to claim 4.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014216322A (en) * | 2013-04-23 | 2014-11-17 | エルジー イノテック カンパニー リミテッド | Lighting device |
WO2015140866A1 (en) * | 2014-03-15 | 2015-09-24 | エヌズエンタープライズ株式会社 | Led fluorescent lighting device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD732234S1 (en) | 2014-03-26 | 2015-06-16 | Elite Lighting | Body for light fixture |
US9447949B2 (en) | 2014-04-25 | 2016-09-20 | Elite Lighting | Light fixture |
USD797349S1 (en) | 2016-05-17 | 2017-09-12 | Elite Lighting | Ballast room cover for a light fixture |
USD790753S1 (en) | 2016-05-17 | 2017-06-27 | Elite Lighting | Body for a light fixture |
CN108317444A (en) * | 2018-04-17 | 2018-07-24 | 东莞市擎洲光电科技有限公司 | A kind of linear shot-light |
KR102178184B1 (en) * | 2020-05-21 | 2020-11-13 | 주식회사 누리온 | Louver light apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009302028A (en) * | 2008-06-16 | 2009-12-24 | Msm Tech Co Ltd | Fluorescent lamp type led lamp |
JP2010003683A (en) * | 2008-05-19 | 2010-01-07 | Katsukiyo Morii | Illumination lamp using light-emitting element |
JP2010212043A (en) * | 2009-03-10 | 2010-09-24 | Toshin Denki Kk | Fluorescent lamp type led lighting tube, and fluorescent lamp type led lighting device equipped with this lighting tube |
JP2011023358A (en) * | 2010-08-31 | 2011-02-03 | Gs Yuasa Corp | Nickel-metal hydride battery |
JP2011233358A (en) * | 2010-04-27 | 2011-11-17 | Toshiba Lighting & Technology Corp | Lighting fixture |
JP2012009451A (en) * | 2011-09-15 | 2012-01-12 | Panasonic Corp | Led lamp and lighting fixture |
-
2012
- 2012-02-27 JP JP2012039465A patent/JP5296236B2/en not_active Expired - Fee Related
-
2013
- 2013-02-26 TW TW102106677A patent/TW201341720A/en unknown
- 2013-02-26 WO PCT/JP2013/054869 patent/WO2013129362A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010003683A (en) * | 2008-05-19 | 2010-01-07 | Katsukiyo Morii | Illumination lamp using light-emitting element |
JP2009302028A (en) * | 2008-06-16 | 2009-12-24 | Msm Tech Co Ltd | Fluorescent lamp type led lamp |
JP2010212043A (en) * | 2009-03-10 | 2010-09-24 | Toshin Denki Kk | Fluorescent lamp type led lighting tube, and fluorescent lamp type led lighting device equipped with this lighting tube |
JP2011233358A (en) * | 2010-04-27 | 2011-11-17 | Toshiba Lighting & Technology Corp | Lighting fixture |
JP2011023358A (en) * | 2010-08-31 | 2011-02-03 | Gs Yuasa Corp | Nickel-metal hydride battery |
JP2012009451A (en) * | 2011-09-15 | 2012-01-12 | Panasonic Corp | Led lamp and lighting fixture |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014216322A (en) * | 2013-04-23 | 2014-11-17 | エルジー イノテック カンパニー リミテッド | Lighting device |
WO2015140866A1 (en) * | 2014-03-15 | 2015-09-24 | エヌズエンタープライズ株式会社 | Led fluorescent lighting device |
JPWO2015140866A1 (en) * | 2014-03-15 | 2017-04-06 | エヌズエンタープライズ株式会社 | LED fluorescent lighting device |
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