JP5600282B2 - LED lighting fixtures - Google Patents

LED lighting fixtures Download PDF

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JP5600282B2
JP5600282B2 JP2010238649A JP2010238649A JP5600282B2 JP 5600282 B2 JP5600282 B2 JP 5600282B2 JP 2010238649 A JP2010238649 A JP 2010238649A JP 2010238649 A JP2010238649 A JP 2010238649A JP 5600282 B2 JP5600282 B2 JP 5600282B2
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JP2012094286A (en
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孝治 岸野
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Toppan Edge Inc
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Toppan Forms Co Ltd
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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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources

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  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、ＬＥＤを光源として用いたＬＥＤ照明器具に関する。   The present invention relates to an LED lighting apparatus using an LED as a light source.

ＬＥＤ（Light Emitting Diode）は、エネルギー効率に優れているとともに長寿命であり、また、近年においては高輝度化が進んでいることにより、様々な照明光源として利用されている。例えば、複数のＬＥＤを配列し、蛍光灯ランプの代わりとして利用することが考えられている。   LEDs (Light Emitting Diodes) are excellent in energy efficiency and have a long lifetime, and in recent years, the use of various illumination light sources is progressing due to the progress of higher luminance. For example, it is considered that a plurality of LEDs are arranged and used as a substitute for a fluorescent lamp.

ここで、ＬＥＤは、蛍光灯と比べて光の指向性が強いため、複数のＬＥＤを配列して照射した場合に表面照度にムラが生じてしまう。そこで、複数のＬＥＤ間に平面反射板を配置し、それにより、表面照度のムラを低減する技術が考えられている（例えば、特許文献１参照。）。   Here, since the directivity of light is stronger than that of a fluorescent lamp, unevenness in surface illuminance occurs when a plurality of LEDs are arranged and irradiated. Therefore, a technique has been considered in which a planar reflector is disposed between a plurality of LEDs, thereby reducing unevenness in surface illuminance (see, for example, Patent Document 1).

特開２００６−２０２７２５号公報JP 2006-202725 A

一般的に、ＬＥＤの照射角度は１２０度程度であるため、蛍光灯ランプのように１８０度の範囲を照射することは困難である。上記のように複数のＬＥＤ間に平面反射板を配置すれば、その反射光によって照射範囲を多少は広げることができるものの、平面反射板では、１８０度の範囲に光を反射させることはできず、照射範囲を大きく広げることはできない。   Generally, since the irradiation angle of the LED is about 120 degrees, it is difficult to irradiate a range of 180 degrees like a fluorescent lamp. If a planar reflector is arranged between a plurality of LEDs as described above, the irradiation range can be somewhat expanded by the reflected light, but the planar reflector cannot reflect light in the range of 180 degrees. The irradiation range cannot be greatly expanded.

本発明は、上述したような従来の技術が有する問題点に鑑みてなされたものであって、ＬＥＤを光源として用いた場合にＬＥＤの照射角度に対してその照射範囲を大きく広げることができるＬＥＤ照明器具を提供することを目的とする。   The present invention has been made in view of the problems of the conventional techniques as described above, and when an LED is used as a light source, the LED can broaden its irradiation range with respect to the LED irradiation angle. It aims at providing a lighting fixture.

上記目的を達成するために本発明は、
複数のＬＥＤが列をなして搭載された帯状の基板が、光を透過するとともに反射させる材料からなる筒状のケースに収容されてなるＬＥＤ照明器具において、
前記複数のＬＥＤは、前記基板上に複数列をなして搭載され、
前記複数のＬＥＤがそれぞれ表出するための複数の貫通孔を具備し、前記複数のＬＥＤのそれぞれが前記複数の貫通孔から表出するように前記基板上に配置された反射板を有し、
前記反射板は、前記ＬＥＤの複数列間に、当該ＬＥＤの列に沿って連続し、前記基板とは反対側に突出した凸部を有し、該凸部の前記基板上からの高さが前記ＬＥＤの基板上からの高さよりも高いことを特徴とする。 In order to achieve the above object, the present invention provides:
In an LED lighting apparatus in which a strip-shaped substrate on which a plurality of LEDs are mounted in a row is housed in a cylindrical case made of a material that transmits and reflects light,
The plurality of LEDs are mounted in a plurality of rows on the substrate,
A plurality of through holes for exposing each of the plurality of LEDs, and a reflector disposed on the substrate such that each of the plurality of LEDs is exposed from the plurality of through holes;
The reflector has a convex portion that is continuous along the LED row between the plurality of rows of LEDs and protrudes on the opposite side of the substrate, and the height of the convex portion from above the substrate is high. The LED is higher than the height from above the substrate .

上記のように構成された本発明においては、帯状の基板に列をなして搭載された複数のＬＥＤから光が照射されると、その光は、ＬＥＤの照射角度の範囲に拡散しながら進行していき、帯状の基板が収容された筒状のケースにてその一部が透過するとともに一部が反射する。ここで、複数のＬＥＤは基板上に複数列をなして搭載されており、基板のＬＥＤが搭載された面のうちＬＥＤの複数列間には、凸状の反射板が設けられている。そのため、ＬＥＤから照射された光は、その一部がケースを透過するとともに、一部がケースと反射板にて反射していきながらケースを透過していくことになるが、反射板が凸状のものであることにより、反射光の進行方向をＬＥＤからの光の照射方向に対して垂直の方向に向かわせやすくなり、それにより、ＬＥＤの照射角度に対してその照射範囲が大きく広がることになる。   In the present invention configured as described above, when light is irradiated from a plurality of LEDs mounted in a row on a belt-like substrate, the light travels while diffusing within the range of the LED irradiation angle. Part of the light is transmitted and partially reflected by the cylindrical case in which the band-shaped substrate is accommodated. Here, the plurality of LEDs are mounted in a plurality of rows on the substrate, and a convex reflector is provided between the plurality of LEDs on the surface of the substrate on which the LEDs are mounted. Therefore, part of the light emitted from the LED passes through the case, and part of the light passes through the case while being reflected by the case and the reflector, but the reflector is convex. Therefore, the traveling direction of the reflected light can be easily directed to the direction perpendicular to the light irradiation direction from the LED, and the irradiation range can be greatly expanded with respect to the LED irradiation angle. Become.

また、ケースの内面のうち基板のＬＥＤが搭載された面側に凹凸を有する構成とすれば、この凹凸によって光が乱反射して光の照射範囲がさらに広がりやすくなる。   Moreover, if it is set as the structure which has an unevenness | corrugation in the surface side in which LED of the board | substrate is mounted among the inner surfaces of a case, light will be irregularly reflected by this unevenness and it will become easy to further expand the irradiation range of light.

以上説明したように本発明においては、複数のＬＥＤが複数列をなして搭載された帯状の基板が、光を透過するとともに反射させる材料からなる筒状のケースに収容されているとともに、基板のＬＥＤが搭載された面のうちＬＥＤの複数列間に、凸状の反射板が設けられているため、ＬＥＤから照射された光がケースと反射板にて反射していく際に、反射板にて反射した反射光の進行方向をＬＥＤからの光の照射方向に対して垂直の方向に向かわせやすくなり、それにより、ＬＥＤの照射角度に対してその照射範囲を大きく広げることができる。   As described above, in the present invention, a strip-shaped substrate on which a plurality of LEDs are mounted in a plurality of rows is housed in a cylindrical case made of a material that transmits and reflects light. Since the convex reflectors are provided between the multiple rows of LEDs on the surface where the LEDs are mounted, when the light emitted from the LEDs is reflected by the case and the reflector, The traveling direction of the reflected light reflected in this way can be easily made to be perpendicular to the irradiation direction of the light from the LED, and thus the irradiation range can be greatly expanded with respect to the irradiation angle of the LED.

また、ケースの内面のうち基板のＬＥＤが搭載された面側に凹凸を有するものにおいては、この凹凸によって光が乱反射して光の照射範囲をさらに広げることができる。   Further, in the case where the inner surface of the case has unevenness on the surface side where the LED of the substrate is mounted, the unevenness of the light is caused by the unevenness, and the light irradiation range can be further expanded.

本発明のＬＥＤ照明器具の第１の実施の形態を示す図であり、（ａ）は外観斜視図、（ｂ）は内部構造を示す斜視図、（ｃ）は輪切りにした断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows 1st Embodiment of the LED lighting fixture of this invention, (a) is an external appearance perspective view, (b) is a perspective view which shows an internal structure, (c) is sectional drawing cut into rings. 図１に示したＬＥＤ照明器具の作用を説明するための図である。It is a figure for demonstrating the effect | action of the LED lighting fixture shown in FIG. 本発明のＬＥＤ照明器具の第２の実施の形態を示す図であり、（ａ）は外観斜視図、（ｂ）は内部構造を示す斜視図、（ｃ）は輪切りにした断面図である。It is a figure which shows 2nd Embodiment of the LED lighting fixture of this invention, (a) is an external appearance perspective view, (b) is a perspective view which shows an internal structure, (c) is sectional drawing cut into rings. 図３に示したＬＥＤ照明器具の作用を説明するための図である。It is a figure for demonstrating the effect | action of the LED lighting fixture shown in FIG.

以下に、本発明の実施の形態について図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

（第１の実施の形態）
図１は、本発明のＬＥＤ照明器具の第１の実施の形態を示す図であり、（ａ）は外観斜視図、（ｂ）は内部構造を示す斜視図、（ｃ）は輪切りにした断面図である。 (First embodiment)
1A and 1B are diagrams showing a first embodiment of an LED lighting apparatus according to the present invention, wherein FIG. 1A is an external perspective view, FIG. 1B is a perspective view showing an internal structure, and FIG. FIG.

本形態は図１に示すように、光を透過するとともに反射させる材料であるポリカーボネートからなる筒状の外郭ケース２の両端部に口金３が嵌め込まれて構成されている。この外郭ケース２の内部には、一方の面に複数のＬＥＤ１１が搭載された帯状のＬＥＤ基板１０と、このＬＥＤ基板１０上に搭載された反射板２０とを有している。   As shown in FIG. 1, this embodiment is configured such that a base 3 is fitted into both ends of a cylindrical outer case 2 made of polycarbonate, which is a material that transmits and reflects light. Inside the outer case 2, there is a strip-shaped LED substrate 10 on which a plurality of LEDs 11 are mounted on one surface, and a reflector 20 mounted on the LED substrate 10.

ＬＥＤ基板１０は、その一方の面上に、複数のＬＥＤ１１が２列をなして搭載されており、複数のＬＥＤ１１が列をなす方向に沿う端部が外郭ケース２の内側面に設けられた溝２ａに嵌め込まれて固定されている。   The LED substrate 10 has a plurality of LEDs 11 mounted in two rows on one surface thereof, and a groove in which an end along the direction in which the plurality of LEDs 11 form a row is provided on the inner surface of the outer case 2 2a is fitted and fixed.

反射板２０は、ＬＥＤ基板１０上におけるＬＥＤ１１の配置ピッチと同一のピッチで複数の貫通孔２１が２列をなして設けられているとともに、少なくとも一方の面が鏡面等の反射機能を有し、２列をなす貫通孔２１の列間にてその面側に突出した断面が三角形となる凸部２２が設けられている。そして、凸部２２が突出した側がＬＥＤ基板１０とは反対側となるように、かつ、複数のＬＥＤ１１のそれぞれが貫通孔２１から表出するようにＬＥＤ基板１０上に搭載され、複数の貫通孔２１が列をなす方向に沿う端部が外郭ケース２の内側面に設けられた溝２ａに嵌め込まれて固定されている。つまり、外郭ケース２の内側面に設けられた溝２ａは、ＬＥＤ基板１０と反射板２０の厚さを合わせた幅となっている。   The reflector 20 is provided with a plurality of through holes 21 in two rows at the same pitch as the arrangement pitch of the LEDs 11 on the LED substrate 10, and at least one surface has a reflecting function such as a mirror surface, Between the rows of the through holes 21 forming two rows, a convex portion 22 having a triangular cross section protruding to the surface side is provided. The plurality of LEDs 11 are mounted on the LED substrate 10 so that the side from which the convex portion 22 protrudes is opposite to the LED substrate 10, and the plurality of LEDs 11 are exposed from the through holes 21. An end portion along the direction in which the lines 21 form a line is fitted and fixed in a groove 2 a provided on the inner surface of the outer case 2. That is, the groove 2 a provided on the inner side surface of the outer case 2 has a width obtained by combining the thicknesses of the LED substrate 10 and the reflection plate 20.

このように、反射板２０が、凸部２２が突出した側がＬＥＤ基板１０とは反対側となるように、かつ、複数のＬＥＤ１１のそれぞれが貫通孔２１から表出するようにＬＥＤ基板１０上に搭載されることにより、反射板２０は、ＬＥＤ基板１０上に搭載された２列のＬＥＤ１１の列間に凸部２２が設けられた状態となる。   As described above, the reflecting plate 20 is formed on the LED substrate 10 so that the side on which the convex portion 22 protrudes is opposite to the LED substrate 10 and each of the plurality of LEDs 11 is exposed from the through hole 21. By being mounted, the reflecting plate 20 is in a state in which the convex portion 22 is provided between the two rows of LEDs 11 mounted on the LED substrate 10.

外郭ケース２の両端部に嵌め込まれた口金３には、それぞれ２本の口金ピン３ａ，３ｂが設けられている。ＬＥＤ基板１０に搭載されたＬＥＤ１１は直流電源で駆動するため、４本の口金ピン３ａ，３ｂのうち、２本の口金ピンがＬＥＤ基板１０に接続され、これら２本の口金ピンのうち一方にプラスの電位が印加され、他方にＧＮＤ電位が印加されることにより、ＬＥＤ１１に直流電源が供給される。本形態においては、外郭ケース２の両端部に嵌め込まれた口金３のうち、一方の口金３に設けられた２本の口金ピン３ａ，３ｂにプラス、ＧＮＤ電位がそれぞれ印加され、他方の口金３に設けられた２本の口金ピンはダミーとなっている。   Two base pins 3a and 3b are provided on the base 3 fitted to both ends of the outer case 2, respectively. Since the LED 11 mounted on the LED board 10 is driven by a DC power supply, two of the four base pins 3a and 3b are connected to the LED base 10 and one of the two base pins is connected to one of the two base pins. When a positive potential is applied and a GND potential is applied to the other, a DC power supply is supplied to the LED 11. In the present embodiment, plus and GND potentials are respectively applied to the two base pins 3a and 3b provided on one base 3 out of the bases 3 fitted to both ends of the outer case 2, and the other base 3 is provided. The two cap pins provided in are dummy.

以下に、上記のように構成されたＬＥＤ照明器具１の作用について説明する。   Below, the effect | action of the LED lighting fixture 1 comprised as mentioned above is demonstrated.

図２は、図１に示したＬＥＤ照明器具１の作用を説明するための図であり、図１に示したＬＥＤ照明器具１を輪切りにした方向から見た図である。   FIG. 2 is a view for explaining the operation of the LED lighting apparatus 1 shown in FIG. 1 and is a view of the LED lighting apparatus 1 shown in FIG.

図１に示したＬＥＤ照明器具１においては、口金ピン３ａ，３ｂを介して直流電源が供給されると、ＬＥＤ基板１０に搭載された複数のＬＥＤ１１がそれぞれ発光し、ＬＥＤ１１から光が照射される。そして、ＬＥＤ１１から照射された光は、ＬＥＤ１１の照射角度の範囲に拡散しながら進行していく。   In the LED lighting apparatus 1 shown in FIG. 1, when DC power is supplied through the cap pins 3 a and 3 b, the plurality of LEDs 11 mounted on the LED substrate 10 each emit light, and light is emitted from the LEDs 11. . And the light irradiated from LED11 advances, diffusing in the range of the irradiation angle of LED11.

すると、図２に示すように、ＬＥＤ１１から照射された光の一部の成分Ｌ1が反射板２０の凸部２２にて反射し、その反射光Ｌ2が外郭ケース２に向かって進行していく。そして、反射光Ｌ2が外郭ケース２に到達すると、反射光Ｌ2の一部が透過光Ｌ3として外郭ケース２を透過していくとともに、反射光Ｌ2の一部が反射光Ｌ4として外郭ケース２にて反射する。 Then, as shown in FIG. 2, a part of the light component L 1 emitted from the LED 11 is reflected by the convex portion 22 of the reflecting plate 20, and the reflected light L 2 travels toward the outer case 2. Go. When the reflected light L 2 reaches the outer case 2, a part of the reflected light L 2 passes through the outer case 2 as transmitted light L 3 and a part of the reflected light L 2 becomes reflected light L 4. Reflected by the outer case 2.

外郭ケース２にて反射した反射光Ｌ4は、反射板２０の凸部２２に再び照射され、凸部２２にて反射してその反射光Ｌ5が外郭ケース２に向かって進行していく。 The reflected light L 4 reflected by the outer case 2 is irradiated again on the convex portion 22 of the reflecting plate 20, reflected by the convex portion 22, and the reflected light L 5 proceeds toward the outer case 2.

また、ＬＥＤ１１から照射された光の一部の成分Ｌ6が外郭ケース２に向かって進行していき、外郭ケース２に到達すると、光の成分Ｌ6の一部が透過光Ｌ7として外郭ケース２を透過していくとともに、光の成分Ｌ6の一部が反射光Ｌ8として外郭ケース２にて反射する。 Further, when a part of the light component L 6 emitted from the LED 11 travels toward the outer case 2 and reaches the outer case 2, a part of the light component L 6 is transmitted as light L 7 in the outer case. 2 and part of the light component L 6 is reflected by the outer case 2 as reflected light L 8 .

外郭ケース２にて反射した反射光Ｌ8は、反射板２０の凸部２２に照射され、凸部２２にて反射してその反射光Ｌ9が外郭ケース２に向かって進行していく。 The reflected light L 8 reflected by the outer case 2 is applied to the convex portion 22 of the reflecting plate 20, reflected by the convex portion 22, and the reflected light L 9 proceeds toward the outer case 2.

このように、ＬＥＤ１１から照射された光は、ＬＥＤ１１の照射角度の範囲に拡散しながら進行していき、その一部が外郭ケース２を透過するとともに、一部が外郭ケース２と反射板２０の凸部２２にて反射していきながら外郭ケース２を透過していくことにより、反射光の進行方向がＬＥＤ１１からの光の照射方向に対して垂直の方向に向かいやすくなり、それにより、ＬＥＤ１１の照射角度に対してその照射範囲が大きく広がることになる。   In this way, the light emitted from the LED 11 travels while diffusing within the range of the irradiation angle of the LED 11, a part of which passes through the outer case 2 and a part of the outer case 2 and the reflector 20. By passing through the outer case 2 while being reflected by the convex portion 22, the traveling direction of the reflected light is easily directed in a direction perpendicular to the direction of light irradiation from the LED 11, thereby The irradiation range greatly expands with respect to the irradiation angle.

ここで、凸部２２の高さ及び表面の起立角度を、ＬＥＤ１１と凸部２２との距離や外郭ケース２の大きさに応じて設定することにより、上述したように、ＬＥＤ１１から照射された光の一部の成分Ｌ1が凸部２２にて反射し、その反射光Ｌ2の一部が外郭ケース２にて反射し、その反射光Ｌ4が凸部２２にて反射した反射光Ｌ5が、図２に示したように、ＬＥＤ１１からの照射方向に対して垂直の方向に進んだり、ＬＥＤ１１から照射された光の一部の成分Ｌ6が外郭ケース２にて反射し、その反射光Ｌ8が凸部２２にて反射した反射光Ｌ9が、図２に示したように、ＬＥＤ１１からの照射方向に対して垂直の方向に進んだりするようにすることができ、それにより、ＬＥＤ１１を用いたＬＥＤ照明器具１において、１８０度の角度を照射することができるようになる。 Here, the light emitted from the LED 11 is set as described above by setting the height of the convex portion 22 and the standing angle of the surface according to the distance between the LED 11 and the convex portion 22 and the size of the outer case 2. reflects some of the components L 1 is at the convex portion 22 of a part of the reflected light L 2 is reflected by the outer casing 2, the reflected light L 5 reflected by the reflected light L 4 is a convex portion 22 However, as shown in FIG. 2, the light travels in a direction perpendicular to the irradiation direction from the LED 11, or a part of the component L 6 of the light irradiated from the LED 11 is reflected by the outer case 2, and the reflected light As shown in FIG. 2, the reflected light L 9 reflected by the convex portion 22 of L 8 can travel in a direction perpendicular to the irradiation direction from the LED 11, whereby the LED 11 In the LED lighting apparatus 1 using the So that it is.

（第２の実施の形態）
図３は、本発明のＬＥＤ照明器具の第２の実施の形態を示す図であり、（ａ）は外観斜視図、（ｂ）は内部構造を示す斜視図、（ｃ）は輪切りにした断面図である。 (Second Embodiment)
3A and 3B are diagrams showing a second embodiment of the LED lighting apparatus of the present invention, wherein FIG. 3A is an external perspective view, FIG. 3B is a perspective view showing an internal structure, and FIG. FIG.

本形態は図３に示すように、第１の実施の形態にて示したものに対して、反射板１２０に設けられた凸部１２２が、その断面が半円状となるものであるとともに、外郭ケース１０２の内面のうち、ＬＥＤ基板１０のＬＥＤ１１が搭載された面側に、断面が半円状の複数の山が連なることによって形成される凹凸１０２ｂが設けられている点のみが異なるものである。   As shown in FIG. 3, the present embodiment has a convex portion 122 provided on the reflector 120 that is semicircular in cross section with respect to that shown in the first embodiment. Of the inner surface of the outer case 102, the only difference is that the surface of the LED substrate 10 on which the LED 11 is mounted is provided with unevenness 102 b formed by connecting a plurality of semicircular peaks. is there.

以下に、上記のように構成されたＬＥＤ照明器具１０１の作用について説明する。   Below, the effect | action of the LED lighting fixture 101 comprised as mentioned above is demonstrated.

図４は、図３に示したＬＥＤ照明器具１０１の作用を説明するための図であり、図３に示したＬＥＤ照明器具１０１を輪切りにした方向から見た図である。   FIG. 4 is a view for explaining the operation of the LED lighting apparatus 101 shown in FIG. 3, and is a view seen from the direction in which the LED lighting apparatus 101 shown in FIG.

図３に示したＬＥＤ照明器具１０１においては、第１の実施の形態にて示したものと同様に、口金ピン３ａ，３ｂを介して直流電源が供給されると、ＬＥＤ基板１０に搭載された複数のＬＥＤ１１がそれぞれ発光し、ＬＥＤ１１から光が照射される。そして、ＬＥＤ１１から照射された光は、ＬＥＤ１１の照射角度の範囲に拡散しながら進行していく。   In the LED lighting apparatus 101 shown in FIG. 3, when the DC power is supplied through the cap pins 3a and 3b, the LED lighting apparatus 101 is mounted on the LED substrate 10 as in the first embodiment. Each of the plurality of LEDs 11 emits light, and light is emitted from the LEDs 11. And the light irradiated from LED11 advances, diffusing in the range of the irradiation angle of LED11.

すると、図４に示すように、ＬＥＤ１１から照射された光の一部の成分Ｌ1が反射板１２０の凸部１２２にて反射し、その反射光Ｌ2が外郭ケース１０２に向かって進行していく。そして、反射光Ｌ2が外郭ケース１０２に到達すると、反射光Ｌ2の一部が透過光Ｌ3として外郭ケース１０２を透過していくとともに、反射光Ｌ2の一部が外郭ケース１０２の内面に設けられた凹凸１０２ｂにて乱反射し、その一部の反射光Ｌ4が反射板２０の凸部１２２に再び照射される。 Then, as shown in FIG. 4, a part of the light component L 1 emitted from the LED 11 is reflected by the convex portion 122 of the reflector 120, and the reflected light L 2 travels toward the outer case 102. Go. When the reflected light L 2 from reaching the outer case 102, a portion of the reflected light L 2 together with gradually through the outer case 102 as transmitted light L 3, a portion of the reflected light L 2 is the outer casing 102 inside surface Is irregularly reflected by the unevenness 102b provided on the surface, and a part of the reflected light L 4 is irradiated again on the convex portion 122 of the reflecting plate 20.

外郭ケース１０２の凹凸１０２ｂにて反射した反射光Ｌ4が凸部１２２に照射されると、反射光Ｌ4が凸部１２２にて反射してその反射光Ｌ5が外郭ケース１０２に向かって進行していく。 When the reflected light L 4 reflected by the projections and depressions 102 b of the outer case 102 is irradiated to the convex portion 122, the reflected light L 4 is reflected by the convex portion 122 and the reflected light L 5 travels toward the outer case 102. I will do it.

また、ＬＥＤ１１から照射された光の一部の成分Ｌ6が外郭ケース１０２に向かって進行していき、外郭ケース２に到達すると、光の成分Ｌ6の一部が透過光Ｌ7として外郭ケース１０２を透過していくとともに、光の成分Ｌ6の一部が外郭ケース１０２の内面に設けられた凹凸１０２ｂにて乱反射する。 Further, when a part of the light component L 6 emitted from the LED 11 travels toward the outer case 102 and reaches the outer case 2, a part of the light component L 6 is transmitted as light L 7. As the light passes through 102, a part of the light component L 6 is diffusely reflected by the unevenness 102 b provided on the inner surface of the outer case 102.

外郭ケース１０２の凹凸１０２ｂにて乱反射した光の一部となる反射光Ｌ8は、反射板１２０の凸部１２２に照射され、凸部１２２にて反射してその反射光Ｌ9が外郭ケース１０２に向かって進行していく。 The reflected light L 8, which is a part of the light irregularly reflected by the unevenness 102 b of the outer case 102, is applied to the convex portion 122 of the reflecting plate 120, reflected by the convex portion 122, and the reflected light L 9 is reflected by the outer case 102. Proceed toward.

このように、ＬＥＤ１１から照射された光は、ＬＥＤ１１の照射角度の範囲に拡散しながら進行していき、その一部が外郭ケース１０２を透過するとともに、一部が外郭ケース１０２と反射板１２０の凸部１２２にて反射していきながら外郭ケース１０２を透過していくことにより、反射光の進行方向がＬＥＤ１１からの光の照射方向に対して垂直の方向に向かいやすくなり、それにより、ＬＥＤ１１の照射角度に対してその照射範囲が大きく広がることになる。   Thus, the light emitted from the LED 11 travels while diffusing within the range of the irradiation angle of the LED 11, a part of which passes through the outer case 102 and a part of the outer case 102 and the reflector 120. By passing through the outer case 102 while being reflected by the convex portion 122, the traveling direction of the reflected light is easily directed in a direction perpendicular to the light irradiation direction from the LED 11, and thereby the LED 11 The irradiation range greatly expands with respect to the irradiation angle.

ここで、凸部１２２の大きさ、並びに凹凸１０２ｂを構成する山の大きさを、ＬＥＤ１１と凸部１２２との距離や外郭ケース１０２の大きさに応じて設定することにより、上述したように、ＬＥＤ１１から照射された光の一部の成分Ｌ1が凸部１２２にて反射し、その反射光Ｌ2の一部が外郭ケース１０２にて反射し、その反射光Ｌ4が凸部１２２にて反射した反射光Ｌ5が、図４に示したように、ＬＥＤ１１に対して水平方向に進んだり、ＬＥＤ１１から照射された光の一部の成分Ｌ6が外郭ケース１０２にて反射し、その反射光Ｌ8が凸部１２２にて反射した反射光Ｌ9が、図４に示したように、ＬＥＤ１１からの照射方向に対して垂直の方向に進んだりするようにすることができ、それにより、ＬＥＤ１１を用いたＬＥＤ照明器具１において、１８０度の角度を照射することができるようになる。 Here, as described above, by setting the size of the convex portion 122 and the size of the mountain constituting the concave and convex portion 102b according to the distance between the LED 11 and the convex portion 122 and the size of the outer case 102, A part of the light component L 1 emitted from the LED 11 is reflected by the convex part 122, a part of the reflected light L 2 is reflected by the outer case 102, and the reflected light L 4 is reflected by the convex part 122. As shown in FIG. 4, the reflected reflected light L 5 travels in the horizontal direction with respect to the LED 11, or a partial component L 6 of the light emitted from the LED 11 is reflected by the outer case 102, and the reflected light As shown in FIG. 4, the reflected light L 9 reflected by the light L 8 at the convex portion 122 can travel in a direction perpendicular to the irradiation direction from the LED 11. In the LED lighting fixture 1 using LED11 , It is possible to irradiate an angle of 180 degrees.

また、本形態においては、凸部１２２にて反射した反射光Ｌ2や、ＬＥＤ１１から照射された光の成分Ｌ6が、外郭ケース１０２の凹凸１０２ｂにて乱反射することにより、この凹凸１０２ｂによっても光の照射角度が広がり、乱反射した光の成分が凸部１２２にて反射することによってさらに光の照射範囲を広げることができる。 Further, in this embodiment, the reflected light L 2 reflected by the convex portion 122 and the component L 6 of the light emitted from the LED 11 are irregularly reflected by the unevenness 102 b of the outer case 102, so that the unevenness 102 b The light irradiation angle is widened, and the diffused light component is reflected by the convex portion 122, so that the light irradiation range can be further expanded.

なお、上述した２つの実施の形態においては、複数のＬＥＤ１１が２列をなしてＬＥＤ基板１０上に搭載されたものを例に挙げて説明したが、本発明におけるＬＥＤ１１がなす列の数は複数であればこれに限らず、反射板２０，１２０の凸部２２，１２２は、このＬＥＤ１１の複数列間に設けられることになる。   In the two embodiments described above, the case where the plurality of LEDs 11 are mounted on the LED substrate 10 in two rows has been described as an example. However, the number of columns formed by the LEDs 11 in the present invention is plural. If it is, it will not be restricted to this, The convex parts 22 and 122 of the reflecting plates 20 and 120 will be provided between several rows of this LED11.

また、上述した２つの実施の形態においては、複数のＬＥＤ１１が列をなして搭載されたＬＥＤ基板１０上に反射板２０，１２０を搭載し、この反射板２０，１２０のＬＥＤ１１の列間に、突出した凸部２２，１２２を設けているが、少なくともＬＥＤ１１の列間のみに凸状の反射板を設けておけば、上記同様の作用が生じることになる。また、凸部の形状については、上述した２つの実施の形態にて示したものに限らず、１枚の板状のもの等、ＬＥＤ１１から照射された光や、外郭ケース２，１０２にて反射した光を、ＬＥＤ１１からの光の照射方向に対して垂直な方向に向かわせやすいものであれば、様々な形状のものを用いることができる。   In the two embodiments described above, the reflectors 20 and 120 are mounted on the LED substrate 10 on which the plurality of LEDs 11 are mounted in rows, and between the rows of the LEDs 11 of the reflectors 20 and 120, Although the protruding convex portions 22 and 122 are provided, if a convex reflector is provided at least only between the rows of the LEDs 11, the same operation as described above occurs. Further, the shape of the convex portion is not limited to those shown in the above-described two embodiments, but is reflected by the light emitted from the LED 11 or the outer case 2, 102, such as one plate-like one. Various shapes can be used as long as the light is easily directed in a direction perpendicular to the direction of light irradiation from the LED 11.

１，１０１ ＬＥＤ照明器具
２，２０２ 外郭ケース
２ａ 溝
３ 口金
３ａ，３ｂ 口金ピン
１０ ＬＥＤ基板
１１ ＬＥＤ
２０，１２０ 反射板
２１ 貫通孔
２２，１２２ 凸部
１０２ｂ 凹凸 DESCRIPTION OF SYMBOLS 1,101 LED lighting fixture 2,202 Outer case 2a Groove 3 Base 3a, 3b Base pin 10 LED board 11 LED
20,120 Reflector 21 Through-hole 22,122 Convex part 102b Convex part

Claims (2)

複数のＬＥＤが列をなして搭載された帯状の基板が、光を透過するとともに反射させる材料からなる筒状のケースに収容されてなるＬＥＤ照明器具において、
前記複数のＬＥＤは、前記基板上に複数列をなして搭載され、
前記複数のＬＥＤがそれぞれ表出するための複数の貫通孔を具備し、前記複数のＬＥＤのそれぞれが前記複数の貫通孔から表出するように前記基板上に配置された反射板を有し、
前記反射板は、前記ＬＥＤの複数列間に、当該ＬＥＤの列に沿って連続し、前記基板とは反対側に突出した凸部を有し、該凸部の前記基板上からの高さが前記ＬＥＤの基板上からの高さよりも高いことを特徴とするＬＥＤ照明器具。 In the LED lighting apparatus in which a strip-shaped substrate on which a plurality of LEDs are mounted in a row is housed in a cylindrical case made of a material that transmits and reflects light,
The plurality of LEDs are mounted in a plurality of rows on the substrate,
A plurality of through holes for exposing each of the plurality of LEDs, and a reflector disposed on the substrate such that each of the plurality of LEDs is exposed from the plurality of through holes;
The reflector has a convex portion that is continuous along the LED row between the plurality of rows of LEDs and protrudes on the opposite side of the substrate, and the height of the convex portion from above the substrate is high. The LED lighting fixture characterized by being higher than the height from the said board | substrate of LED. 請求項１に記載のＬＥＤ照明器具において、
前記ケースは、前記基板の前記ＬＥＤが搭載された面側の内面に凹凸を有するＬＥＤ照明器具。 In the LED lighting fixture of Claim 1,
The case is an LED lighting apparatus having irregularities on the inner surface of the substrate on which the LED is mounted.
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