JP5537161B2 - lighting equipment - Google Patents

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JP5537161B2
JP5537161B2 JP2010002215A JP2010002215A JP5537161B2 JP 5537161 B2 JP5537161 B2 JP 5537161B2 JP 2010002215 A JP2010002215 A JP 2010002215A JP 2010002215 A JP2010002215 A JP 2010002215A JP 5537161 B2 JP5537161 B2 JP 5537161B2
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led
light
leds
reflecting surface
reflected
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JP2011142019A (en
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邦夫 武内
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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本発明は、スポットライト等の集中的な照射を行うのに適用される照明器具に関する。   The present invention relates to a luminaire that is applied to intensive irradiation such as a spotlight.

従来の照明器具の一例として、LEDからの光を反射させるための反射板をLEDに光学的に接続したものがある(例えば、特許文献1参照)。   As an example of a conventional lighting fixture, there is one in which a reflector for reflecting light from an LED is optically connected to the LED (for example, see Patent Document 1).

従来の照明器具の他の一例として、LEDからの光を遮断させ、遮断した光を配向させる反射板を備えたものがある(例えば、特許文献2参照)。   As another example of a conventional lighting fixture, there is one provided with a reflection plate that blocks light from an LED and directs the blocked light (for example, see Patent Document 2).

特表2009−516893号公報(図2、請求項1)JP-T-2009-516893 (FIG. 2, claim 1) 特開2009−16347号公報(図2、請求項1)JP 2009-16347 A (FIG. 2, claim 1)

ところが、上記特許文献1に開示された従来の照明器具および上記特許文献2に開示された従来の照明器具においては、LEDからの光の到達距離を長くすることがし難い。
従って、上記特許文献1に開示された従来の照明器具および上記特許文献2に開示された従来の照明器具においては、遠くにある照射対象を確実に照射することができない。
However, in the conventional lighting apparatus disclosed in Patent Document 1 and the conventional lighting apparatus disclosed in Patent Document 2, it is difficult to increase the reach distance of light from the LED.
Therefore, in the conventional luminaire disclosed in Patent Document 1 and the conventional luminaire disclosed in Patent Document 2, it is not possible to reliably irradiate a far object to be irradiated.

本発明は、前述した課題を解決するためになされたものであり、その目的は、LEDからの光の到達距離を長くすることにより良好な投光特性を得ることができる照明器具を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a luminaire that can obtain good light projecting characteristics by increasing the reach distance of light from an LED. It is in.

本発明に係る照明器具は、樋状であって、その断面がパラボラ曲線となるとともに互いに平行となるように配列された反射面を有する複数の反射板と、光軸が前記パラボラ曲線方向であり、前記パラボラ曲線の焦点位置に配設され前記反射板の長手方向に配列される複数のLEDと、を備え、前記反射板は、前記パラボラ曲線となる前記反射面が連続して形成され、かつ、前記LEDの前記光軸と直交する第2反射面を有し、前記反射板のそれぞれには、R、G、Bの組合せである複数のLEDが配置され、RのLEDの両側にBのLEDが配置されるとともに、GのLEDの両側にBのLEDが配置される。 A lighting fixture according to the present invention is bowl-shaped, and has a plurality of reflectors having reflecting surfaces arranged so that a cross section thereof is a parabolic curve and is parallel to each other, and an optical axis is the parabolic curve direction. A plurality of LEDs arranged at the focal position of the parabolic curve and arranged in the longitudinal direction of the reflecting plate, and the reflecting plate is formed such that the reflecting surface that becomes the parabolic curve is continuously formed, and , have a second reflecting surface perpendicular to the optical axis of the LED, to each of the reflectors, R, G, are arranged a plurality of LED is a combination of B, and B on both sides of the LED of R The LEDs are arranged, and the B LEDs are arranged on both sides of the G LEDs.

本発明において、LEDからの光は反射板のパラボラ曲線断面を有する反射面で反射されることにより長い到達距離を有する反射光に変換される。
従って、本発明においては、LEDからの光の到達距離が長くなって遠くにある照射対象を確実に照射することにより良好な投光特性を得ることができる。
In this invention, the light from LED is converted into the reflected light which has a long reach | attainment by being reflected by the reflective surface which has the parabolic curve cross section of a reflecting plate.
Therefore, in the present invention, it is possible to obtain a good light projecting characteristic by reliably irradiating an irradiation target with a long distance of light from the LED.

本発明において、複数のLEDからの光のうち樋状に連続した反射面に向かった光は反射面により反射され、複数のLEDからの光のうち第2反射面に向かった光は第2反射面により反射されて反射面により反射された光に混ざり合う。
従って、本発明においては、複数のLEDからの光を無駄なく照射することができる。
In the present invention, light directed from the plurality of LEDs toward the reflective surface that is continuous in a bowl shape is reflected by the reflective surface, and light directed from the plurality of LEDs toward the second reflective surface is second reflected. The light reflected by the surface is mixed with the light reflected by the reflecting surface.
Therefore, in the present invention, light from a plurality of LEDs can be irradiated without waste.

本発明において、互いに平行となるように配列された複数の反射板のそれぞれに配置される複数のLEDは、RのLEDの両側にBのLEDが配置されるとともに、GのLEDの両側にBのLEDが配置される。
従って、本発明においては、R、G、Bの全てのLEDが発光された際に均一な白色光を創生することができる。
In the present invention, the plurality of LEDs arranged on each of the plurality of reflectors arranged so as to be parallel to each other include the B LED on both sides of the R LED and the B on both sides of the G LED. LEDs are arranged.
Therefore, in the present invention, uniform white light can be created when all of the R, G, and B LEDs emit light.

本発明の照明器具によれば、LEDからの光は反射板のパラボラ曲線断面を有する反射面で反射されることにより長い到達距離を有する反射光に変換される。
これにより、本発明の照明器具によれば、LEDからの光の到達距離が長くなって遠くにある照射対象を確実に照射することにより良好な投光特性を得ることができるという効果を有する。
According to the lighting fixture of the present invention, the light from the LED is converted to the reflected light having a long reach by being reflected by the reflecting surface having the parabolic curve cross section of the reflecting plate.
Thereby, according to the lighting fixture of this invention, it has the effect that a favorable light projection characteristic can be acquired by irradiating the irradiation target which is long and the irradiation distance of light from LED becomes long.

本発明に係る一実施形態の照明器具の一部破断正面図The partially broken front view of the lighting fixture of one Embodiment which concerns on this invention 図1の照明器具の一部破断平面図FIG. 1 is a partially broken plan view of the lighting apparatus of FIG. 図1の照明器具のA−A線断面図AA line sectional view of the lighting fixture of FIG. 図1の照明器具におけるLEDユニットの正面図The front view of the LED unit in the lighting fixture of FIG. 図4のLEDユニットの右側面図Right side view of the LED unit of FIG. 図4のLEDユニットにおけるLEDの平面図The top view of LED in the LED unit of FIG. 図1の照明器具におけるLEDの配列図LED arrangement in the lighting apparatus of FIG. 図1の照明器具の光学的特性を説明するLEDユニットの右側面図The right view of the LED unit explaining the optical characteristic of the lighting fixture of FIG. 図1の照明器具の水平面方向の光学的特性の模式図Schematic diagram of optical characteristics of horizontal direction of lighting fixture of FIG. 図1の照明器具の鉛直面方向の光学的特性の模式図Schematic diagram of optical characteristics of vertical direction of lighting apparatus of FIG.

以下、本発明の一実施形態に係る照明器具について図面を参照して説明する。
図1、図2、図3に示すように、本発明の一実施形態である照明器具10は、器具本体11と、複数のLED13と単一の反射板14とからなるLEDユニット15を上下に4列備えた灯具12と、電源制御ブロック16と、を備えてブラケット17に取り付けられている。
器具本体11は、厚みの薄いアルミニウムダイカスト製板部材をプレス成形することにより、前板18と、後板19と、一対の側板20と、底板21とから、上端部に開口部22を有する箱形状に形成されている。前板18の中央部には灯具用開口部23を有し、灯具用開口部23にステンレス製のグローブ押え24を介してグローブ25が取り付けられている。グローブ25は透明な硬質のガラス製であって、略コ字形状の断面形状を有し、後端部の全周がグローブ押え24により前板18に支持されている。底板21上にはアルミニウム製のブロックケース26が取り付けられており、ブロックケース26内に電源制御ブロック16が収容されている。電源制御ブロック16はインバータ回路等の直流電源回路やRGB制御回路を有し、不図示の外部電源に電気的に接続されているとともに複数のLED13にそれぞれ電気的に接続されている。底板21にはステンレス製でアングル形状の基台27がネジ止めされており、基台27がブラケット17に取り付けられている。器具本体11は、一対の側板20と後板19とに複数の器具配線28を収容した複数の配管29が連通接続されている。開口部22にはアルミニウムダイカスト製の蓋部材30がネジ止めされている。LEDユニット15は不図示の支持金具によりグローブ25の後方に上下に4列配列されている。
Hereinafter, the lighting fixture which concerns on one Embodiment of this invention is demonstrated with reference to drawings.
As shown in FIGS. 1, 2, and 3, a lighting fixture 10 according to an embodiment of the present invention includes a fixture main body 11, an LED unit 15 including a plurality of LEDs 13 and a single reflector 14. The lamps 12 provided in four rows and the power control block 16 are provided and attached to the bracket 17.
The instrument body 11 is a box having an opening 22 at its upper end from a front plate 18, a rear plate 19, a pair of side plates 20, and a bottom plate 21 by press-molding a thin aluminum die-cast plate member. It is formed into a shape. A lamp opening 23 is provided at the center of the front plate 18, and a glove 25 is attached to the lamp opening 23 via a stainless steel glove presser 24. The globe 25 is made of transparent hard glass, has a substantially U-shaped cross-sectional shape, and the entire circumference of the rear end portion is supported by the front plate 18 by the globe presser 24. An aluminum block case 26 is attached on the bottom plate 21, and the power control block 16 is accommodated in the block case 26. The power supply control block 16 has a DC power supply circuit such as an inverter circuit and an RGB control circuit, and is electrically connected to an external power supply (not shown) and electrically connected to the plurality of LEDs 13. An angle-shaped base 27 made of stainless steel is screwed to the bottom plate 21, and the base 27 is attached to the bracket 17. In the instrument main body 11, a plurality of pipes 29 accommodating a plurality of instrument wires 28 are connected to a pair of side plates 20 and a rear plate 19. A lid member 30 made of aluminum die casting is screwed to the opening 22. The LED units 15 are arranged in four rows up and down behind the globe 25 by support brackets (not shown).

図4、図5、図6に示すように、反射板14には、樋形状であって、その断面形状がパラボラ曲線となっていてアルミニウム蒸着による鏡面の反射面31がLEDユニット基台32の長手方向に連続して形成されている。反射板14は、その基部33がLEDユニット基台32にネジ34によりネジ止めされている。複数のLED13はLEDユニット基台32の長手方向に並べられた複数のLED基板35に実装されており、反射板14の長手方向に予め定められたピッチでそれぞれ配列されている。複数のLED13は反射面31のパラボラ曲線の焦点位置に配置されており、光軸がパラボラ曲線方向である。LED基板35は中央部にLED13を配置して複数のネジ36によりLEDユニット基台32にネジ止めされている。4列のLEDユニット15は反射板14とともに互いに平行となるように配列されている。反射板14は、反射面31から前方に平板状に延出した延出部37を有し、延出部37のLED13側に、例えば白色塗装を施した第2反射面38を有する。第2反射面38はLED13の光軸に直交して配置されている。   As shown in FIGS. 4, 5, and 6, the reflector 14 has a bowl shape, a cross-sectional shape of which is a parabolic curve, and a mirror-like reflective surface 31 formed by aluminum vapor deposition is provided on the LED unit base 32. It is formed continuously in the longitudinal direction. The reflection plate 14 has a base 33 screwed to the LED unit base 32 with screws 34. The plurality of LEDs 13 are mounted on a plurality of LED substrates 35 arranged in the longitudinal direction of the LED unit base 32, and are arranged at a predetermined pitch in the longitudinal direction of the reflecting plate 14. Several LED13 is arrange | positioned in the focal position of the parabolic curve of the reflective surface 31, and an optical axis is a parabolic curve direction. The LED board 35 has the LED 13 disposed at the center and is screwed to the LED unit base 32 with a plurality of screws 36. The four rows of LED units 15 are arranged so as to be parallel to each other together with the reflector 14. The reflecting plate 14 has an extending portion 37 that extends forward from the reflecting surface 31 in a flat plate shape, and has a second reflecting surface 38 that is coated with white, for example, on the LED 13 side of the extending portion 37. The second reflecting surface 38 is disposed orthogonal to the optical axis of the LED 13.

図7に示すように、LED13は、R(赤)、G(緑)、B(青)の組み合わせであって、いちばん上の第1列C1において、左方から右方に向けて、G、B、R、B、G、Bの順に、RのLED13の両側にBのLED13が配置されているとともに、GのLED13の両側にBのLED13が配置されており、上から2列目の第2列C2において、左方から右方に向けて、B、R、B、G、B、R、の順に、RのLED13の両側にBのLED13が配置されているとともに、GのLED13の両側にBのLED13が配置されている。LED13は、上から3列目の第3列C3が第1列C1と同一であって、上から4列目の第4列C4が第2列C2と同一である。このように、LED13は、第1列C1と第3列C3との第1類と、第2列C2と第4列C4との第2類との2種類のRGB列を有し、反射板14の2個のLED13と隣接する反射板14の2個のLED13とはR、Gが1個、Bが2個となるように配列されている。   As shown in FIG. 7, the LED 13 is a combination of R (red), G (green), and B (blue), and in the first row C1 at the top, G, B LEDs 13 are arranged on both sides of the R LED 13 in the order of B, R, B, G, B, and B LEDs 13 are arranged on both sides of the G LED 13, and the second row from the top In the two rows C2, from the left to the right, the B LEDs 13 are arranged on both sides of the R LED 13 in the order of B, R, B, G, B, R, and both sides of the G LED 13 B LED 13 is arranged. In the LED 13, the third column C3 of the third column from the top is the same as the first column C1, and the fourth column C4 of the fourth column from the top is the same as the second column C2. As described above, the LED 13 has two types of RGB columns, that is, a first type of the first column C1 and the third column C3 and a second type of the second column C2 and the fourth column C4. The two LEDs 13 of 14 and the two LEDs 13 of the reflector 14 adjacent to each other are arranged so that there are one R and G and two B.

次に、照明器具10の光学的特性について説明する。図8に示すように、電源制御ブロック16から与えられた直流電流によりLED13が発光されると、4列のLEDユニット15のそれぞれにおいて、LED13からの光のうち反射板14の反射面31に向かった光は反射面31により反射してグローブ25を通じて前方に向けて大きな光量で照射される。このとき、反射板14の反射面31により反射した光は反射面31がパラボラ曲線断面になっているために長い到達距離を有して指向性を有する反射光に変換される。LED13からの光のうち反射板14の第2反射面38に向かった光は第2反射面38により反射して反射面31で反射した光に混ざり合ってグローブ25を通じて前方に照射される。これにより、それぞれのR、G、BのLED13が全発光(全点灯)されることにより均一な白色光が創生される。なお、R、G、BのLED13のそれぞれは全発光に代えて、R、G、Bのそれぞれの強弱を調整しながら個別に発光させるようにしても良い。   Next, optical characteristics of the lighting fixture 10 will be described. As shown in FIG. 8, when the LED 13 emits light by the direct current supplied from the power control block 16, the light from the LED 13 is directed toward the reflecting surface 31 of the reflecting plate 14 in each of the four rows of LED units 15. The reflected light is reflected by the reflecting surface 31 and irradiated forward with a large light quantity through the globe 25. At this time, the light reflected by the reflecting surface 31 of the reflecting plate 14 is converted into reflected light having a long reach and directivity because the reflecting surface 31 has a parabolic curve cross section. Of the light from the LED 13, the light directed to the second reflecting surface 38 of the reflecting plate 14 is reflected by the second reflecting surface 38, mixed with the light reflected by the reflecting surface 31, and irradiated forward through the globe 25. Thereby, uniform white light is created by each light emission (all lighting) of LED13 of each R, G, B. Note that each of the R, G, and B LEDs 13 may be made to emit light individually while adjusting the intensity of each of R, G, and B instead of the total light emission.

図9に示すように、LED13は、その水平面において、広角配光性能を有しており、広範囲にわたって、略同一輝度を発することができる。
図10に示すように、LED13は、その鉛直面において、やや上向きの超狭角配光性能を有し、仰角がきつくなる程、輝度が低減される性能を有する。
As shown in FIG. 9, the LED 13 has a wide-angle light distribution performance in its horizontal plane, and can emit substantially the same luminance over a wide range.
As shown in FIG. 10, the LED 13 has a slightly upward super narrow-angle light distribution performance in the vertical plane, and has a performance in which the luminance is reduced as the elevation angle becomes tighter.

本発明の一実施形態の照明器具10では、LED13からの光が反射板14のパラボラ曲線断面を有する反射面31で反射されることにより長い到達距離を有する反射光に変換される。
従って、本発明の一実施形態の照明器具10では、LED13からの光の到達距離が長くなって遠くにある照射対象を確実に照射することにより良好な投光特性を得ることができる。
In the lighting fixture 10 of one embodiment of the present invention, the light from the LED 13 is reflected by the reflecting surface 31 having the parabolic curve cross section of the reflecting plate 14 to be converted into reflected light having a long reach.
Therefore, in the lighting fixture 10 of one embodiment of the present invention, a good light projecting characteristic can be obtained by reliably irradiating an irradiation target that is far from the LED 13 with a long light reaching distance.

本発明の一実施形態の照明器具10では、複数のLED13からの光のうち樋状に連続した反射面31に向かった光は反射面31により反射され、複数のLED13からの光のうち第2反射面38に向かった光は第2反射面38により反射されて反射面31により反射された光に混ざり合う。
従って、本発明の一実施形態の照明器具10では、複数のLED13からの光を無駄なく照射することができる。
In the lighting fixture 10 of one embodiment of the present invention, the light from the plurality of LEDs 13 toward the reflecting surface 31 that is continuous in a bowl shape is reflected by the reflecting surface 31, and the second of the lights from the plurality of LEDs 13. The light traveling toward the reflecting surface 38 is reflected by the second reflecting surface 38 and mixed with the light reflected by the reflecting surface 31.
Therefore, in the lighting fixture 10 of one Embodiment of this invention, the light from several LED13 can be irradiated without waste.

本発明の一実施形態の照明器具10では、互いに平行となるように配列された複数の反射板14のそれぞれに配置された複数のLED13は、RのLED13の両側にBのLED13が配置されるとともに、GのLED13の両側にBのLED13が配置される。
従って、本発明の一実施形態の照明器具10では、R、G、Bの全てのLED13が発光された際に均一な白色光を創生することができる。
In the lighting fixture 10 according to the embodiment of the present invention, the plurality of LEDs 13 arranged on each of the plurality of reflectors 14 arranged so as to be parallel to each other include the B LEDs 13 on both sides of the R LED 13. At the same time, the B LEDs 13 are arranged on both sides of the G LED 13.
Therefore, in the lighting fixture 10 of one embodiment of the present invention, uniform white light can be created when all the R, G, and B LEDs 13 emit light.

なお、前記一実施形態で使用した器具本体11、電源制御ブロック16、ブラケット17等は例示したものに限定するものではなく適宜変更が可能である。   In addition, the instrument main body 11, the power supply control block 16, the bracket 17, etc. which were used in the said one embodiment are not limited to what was illustrated, and can be changed suitably.

10 照明器具
13 LED
14 反射板
31 反射面
38 第2反射面
10 Lighting equipment 13 LED
14 Reflecting plate 31 Reflecting surface 38 Second reflecting surface

Claims (1)

樋状であって、その断面がパラボラ曲線となるとともに互いに平行となるように配列された反射面を有する複数の反射板と、
光軸が前記パラボラ曲線方向であり、前記パラボラ曲線の焦点位置に配設され前記反射板の長手方向に配列される複数のLEDと、
を備え、
前記反射板は、前記パラボラ曲線となる前記反射面が連続して形成され、かつ、前記LEDの前記光軸と直交する第2反射面を有し、
前記反射板のそれぞれには、R、G、Bの組合せである複数のLEDが配置され、
RのLEDの両側にBのLEDが配置されるとともに、
GのLEDの両側にBのLEDが配置される、ことを特徴とする照明器具。
A plurality of reflectors having a reflecting surface arranged in a bowl shape, the cross section of which is a parabolic curve and parallel to each other ;
A plurality of LEDs arranged in the longitudinal direction of the reflector, the optical axis being the parabolic curve direction, arranged at the focal position of the parabolic curve;
With
The reflection plate, the reflecting surface serving as the parabolic curve is formed continuously, and have a second reflecting surface perpendicular to the optical axis of the LED,
Each of the reflectors is provided with a plurality of LEDs that are a combination of R, G, and B,
B LEDs are arranged on both sides of the R LED,
A lighting apparatus , wherein the LEDs of B are arranged on both sides of the LEDs of G.
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