JP2020194629A - Signboard device and straight tube type led lighting - Google Patents

Signboard device and straight tube type led lighting Download PDF

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JP2020194629A
JP2020194629A JP2019097831A JP2019097831A JP2020194629A JP 2020194629 A JP2020194629 A JP 2020194629A JP 2019097831 A JP2019097831 A JP 2019097831A JP 2019097831 A JP2019097831 A JP 2019097831A JP 2020194629 A JP2020194629 A JP 2020194629A
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cylindrical member
straight tube
led
tube type
leds
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JP6905272B2 (en
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裕已 島本
Hiromi Shimamoto
裕已 島本
大祐 石塚
Daisuke Ishizuka
大祐 石塚
勝士 久保
Katsushi Kubo
勝士 久保
原田　誠
Makoto Harada
誠 原田
樋口　知以
Tomoji Higuchi
知以 樋口
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Asahi Etic Co Ltd
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Abstract

To improve light distribution characteristic of a straight tube type lighting.SOLUTION: A straight tube type LED lighting 100 includes: a cylindrical member 1 having light transmissivity; multiple LEDs 2; and a base member 3 having wiring for feeding power to the LEDs 2 and to which the LEDs 2 are mounted. Multiple base members 3 are mutually shifted in a circumferential direction of the cylindrical member 1 and each linearly arranged in the cylindrical member 1 along a central axis of the cylindrical member 1. The multiple LEDs 2 are arranged toward the central axis of the cylindrical member 1.SELECTED DRAWING: Figure 2

Description

本発明は、直管型ＬＥＤ照明に関するものである。 The present invention relates to straight tube LED lighting.

特許文献１に記載の照明器具は、ＬＥＤ設置板の上に並置された複数のＬＥＤを有するＬＥＤ群と、ＬＥＤ群の少なくとも前面に凸レンズの断面を有するシリンドリカルレンズである第１光屈折体と、を備える。ＬＥＤ群は、ＬＥＤ設置板の上にＬＥＤが１１９８ｍｍあたり２０個〜８００個並置され、第１光屈折体は、内管と一体又は内管の内側に内管の軸方向に互いに隣接して密に複数個並列される。第１光屈折体とその第１光屈折体に最も近いＬＥＤとの距離は、第１光屈折体の実質焦点距離よりも短い。 The luminaire described in Patent Document 1 includes an LED group having a plurality of LEDs arranged side by side on an LED installation plate, a first light refracting body which is a cylindrical lens having a cross section of a convex lens at least in front of the LED group. With. In the LED group, 20 to 800 LEDs are juxtaposed per 1198 mm on the LED installation plate, and the first photoreflector is integrated with the inner tube or densely adjacent to the inner tube in the axial direction of the inner tube. Multiple parallel to. The distance between the first light refracting body and the LED closest to the first light refracting body is shorter than the substantial focal length of the first light refracting body.

特開２０１１−６０７１９号公報Japanese Unexamined Patent Publication No. 2011-60719

ＬＥＤを用いた直管型ＬＥＤ照明は、蛍光灯に比べ、熱を持たない、電力消費量が少ない、寿命が長い等の特長がある。そのため、蛍光灯から直管型ＬＥＤ照明への交換が進められている。しかし、ＬＥＤの配光特性は強い指向性を有しているため、特許文献１に記載の直管型ＬＥＤ照明のように、配光特性の最適化が図られてきた。 Straight tube LED lighting using LEDs has features such as no heat, low power consumption, and long life compared to fluorescent lamps. Therefore, the replacement of fluorescent lamps with straight tube LED lighting is in progress. However, since the light distribution characteristic of the LED has a strong directivity, the light distribution characteristic has been optimized as in the straight tube type LED lighting described in Patent Document 1.

特許文献１に記載の直管型ＬＥＤ照明では、並置された複数のＬＥＤの少なくとも前面に、凸レンズの断面を有するシリンドリカルレンズである細長い第１光屈折体を複数個並列させることによって、配光特性を改善している。しかし、直管型ＬＥＤ照明に配線基板やＬＥＤ等とは別のレンズ等の部材を追加で設けると、直管型ＬＥＤ照明の製造コストが高くなるという問題点がある。 In the straight tube type LED illumination described in Patent Document 1, a plurality of elongated first light refractors, which are cylindrical lenses having a cross section of a convex lens, are arranged in parallel at least in front of a plurality of juxtaposed LEDs to have light distribution characteristics. Is improving. However, if a member such as a lens other than the wiring board and the LED is additionally provided to the straight tube type LED lighting, there is a problem that the manufacturing cost of the straight tube type LED lighting becomes high.

本発明は上記の問題点に鑑みてなされたものであり、配光特性を改善し、製造コストの低い直管型ＬＥＤ照明を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a straight tube type LED lighting having improved light distribution characteristics and low manufacturing cost.

本発明は、透光性を有する円筒部材と、発光面を有する複数のＬＥＤと、複数のＬＥＤに電力を供給する配線を有し、複数のＬＥＤが搭載される複数のベース部材と、を備え、複数のベース部材は、互いに円筒部材の周方向にずれ、それぞれ円筒部材の中心軸に沿って円筒部材に直線状に配置され、複数のＬＥＤは、円筒部材の中心軸に向けて配置されることを特徴とする直管型照明である。 The present invention includes a cylindrical member having translucency, a plurality of LEDs having a light emitting surface, and a plurality of base members having wirings for supplying power to the plurality of LEDs and mounting the plurality of LEDs. , The plurality of base members are displaced from each other in the circumferential direction of the cylindrical member, and each is arranged linearly on the cylindrical member along the central axis of the cylindrical member, and the plurality of LEDs are arranged toward the central axis of the cylindrical member. It is a straight tube type lighting characterized by this.

この発明では、ＬＥＤが搭載された複数のベース部材が直線状に配置されることで、ベース部材に搭載されたＬＥＤが発する光を円筒部材の周方向に満遍なく照射させることができる。よって、レンズ等の部材を追加で設けなくても、直管型ＬＥＤ照明の配光特性が改善される。 In the present invention, by arranging the plurality of base members on which the LEDs are mounted in a straight line, the light emitted by the LEDs mounted on the base members can be evenly irradiated in the circumferential direction of the cylindrical member. Therefore, the light distribution characteristic of the straight tube type LED lighting is improved without additionally providing a member such as a lens.

本発明の第１実施形態に係る直管型ＬＥＤ照明が用いられる一例としての内照式看板を示す斜視図である。It is a perspective view which shows the internally illuminated signboard as an example which the straight tube type LED lighting which concerns on 1st Embodiment of this invention is used. 本発明の第１実施形態に係る直管型ＬＥＤ照明の全体構成を示す断面図である。It is sectional drawing which shows the whole structure of the straight tube type LED lighting which concerns on 1st Embodiment of this invention. 図２におけるＡ−Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA in FIG. 本発明の第１実施形態の比較例に係る直管型ＬＥＤ照明を示す図であり、図２におけるＡ−Ａ線断面図に対応する断面図である。It is a figure which shows the straight tube type LED illumination which concerns on the comparative example of 1st Embodiment of this invention, and is the sectional view corresponding to the sectional view taken along line AA in FIG. 本発明の第１実施形態とその比較例に係る直管型ＬＥＤ照明における照射光の強度を表したグラフ図である。It is a graph which showed the intensity of the irradiation light in the straight tube type LED illumination which concerns on 1st Embodiment of this invention and the comparative example. 本発明の第１実施形態に係る電源及び電源と関連する構成を示す正面図である。It is a front view which shows the power source which concerns on 1st Embodiment of this invention, and the structure which concerns with power source. 本発明の第１実施形態に係るケーブル挿通キャップを図２におけるＢ方向から見た正面図である。It is a front view which looked at the cable insertion cap which concerns on 1st Embodiment of this invention from the B direction in FIG. 図７におけるＤ−Ｄ線断面図である。FIG. 7 is a cross-sectional view taken along the line DD in FIG. 本発明の第１実施形態に係る通気キャップを図２におけるＣ方向から見た正面図である。It is a front view which looked at the ventilation cap which concerns on 1st Embodiment of this invention from the C direction in FIG. 図９におけるＥ−Ｅ線断面図である。9 is a cross-sectional view taken along the line EE in FIG. 本発明の第１実施形態の変形例に係る直管型ＬＥＤ照明の全体構成を示す断面図である。It is sectional drawing which shows the whole structure of the straight tube type LED lighting which concerns on the modification of 1st Embodiment of this invention. 本発明の第２実施形態に係る直管型ＬＥＤ照明の全体構成を示す断面図である。It is sectional drawing which shows the whole structure of the straight tube type LED lighting which concerns on 2nd Embodiment of this invention. 図１２におけるＦ−Ｆ線断面図である。FIG. 12 is a cross-sectional view taken along the line FF in FIG.

＜第１実施形態＞
以下、図面を参照して、本発明の第１実施形態に係る直管型ＬＥＤ照明１００について説明する。 <First Embodiment>
Hereinafter, the straight tube LED lighting 100 according to the first embodiment of the present invention will be described with reference to the drawings.

直管型照明としての直管型ＬＥＤ照明１００は、例えば図１に示すような内照式看板の光源等に用いられる。 The straight tube type LED lighting 100 as the straight tube type lighting is used, for example, as a light source of an internally illuminated signboard as shown in FIG.

図１は、直管型ＬＥＤ照明１００が用いられる一例としての看板装置２００を示す斜視図である。 FIG. 1 is a perspective view showing a signboard device 200 as an example in which a straight tube type LED lighting 100 is used.

図１に示すように、看板装置２００は、箱状の看板本体１１０と、看板本体１１０の内部に設けられる光源１５０と、看板本体１１０を地面（設置面）に対して支持する支柱１６０と、を備える内照式看板である。看板本体１１０は、情報を表示する表示部としての正面板１１１と、正面板１１１に対向する背面板１１２と、正面板１１１及び背面板１１２に対して水平方向に並んで設けられ両者を接続する一対の側板１１３，１１４と、正面板１１１、背面板１１２、一対の側板１１３，１１４によって形成される鉛直方向の開口を閉塞する天板１１５及び底板１１６と、を有する直方体形状の箱体である。光源１５０は、互いに軸方向に突き合わせられる一対の直管型ＬＥＤ照明１００を備える。看板装置２００は、看板内部の光源１５０からの光を照射することで、正面板１１１を発光させる。 As shown in FIG. 1, the signboard device 200 includes a box-shaped signboard body 110, a light source 150 provided inside the signboard body 110, and a support column 160 that supports the signboard body 110 with respect to the ground (installation surface). It is an internally illuminated signboard equipped with. The signboard body 110 is provided side by side with respect to the front plate 111 as a display unit for displaying information, the back plate 112 facing the front plate 111, and the front plate 111 and the back plate 112, and connects the two. It is a rectangular parallelepiped box body having a pair of side plates 113 and 114, and a top plate 115 and a bottom plate 116 that close a vertical opening formed by a front plate 111, a back plate 112, and a pair of side plates 113 and 114. .. The light source 150 includes a pair of straight tube LED lights 100 that are abutted against each other in the axial direction. The signboard device 200 emits light from the light source 150 inside the signboard to cause the front plate 111 to emit light.

次に、直管型ＬＥＤ照明１００の全体構成について説明する。 Next, the overall configuration of the straight tube type LED lighting 100 will be described.

図２は、直管型ＬＥＤ照明１００の断面図である。 FIG. 2 is a cross-sectional view of the straight tube type LED lighting 100.

図２に示すように、直管型ＬＥＤ照明１００は、透光性を有する円筒部材１と、発光面２ａを有する複数のＬＥＤ２と、複数のＬＥＤ２に電力を供給する配線を備え複数のＬＥＤ２が搭載される複数のベース部材３と、ＬＥＤ２に電力を供給し、円筒部材１内に配置される電源部としての電源４と、電源４を円筒部材１に支持する支持材８（図４参照）と、円筒部材１の一方の開口を覆うケーブル挿通キャップ９と、円筒部材１の他方の開口を覆う通気キャップ１０と、通気キャップ１０に設けられ気体の透過を許容する調整部材１１と、を備える。なお、図２及び後述する図６，１１，２では、電源４，電源ケーブル６は内部構造を省略して図示している。 As shown in FIG. 2, the straight tube type LED lighting 100 includes a cylindrical member 1 having translucency, a plurality of LEDs 2 having a light emitting surface 2a, and a plurality of LEDs 2 provided with wiring for supplying electric power to the plurality of LEDs 2. A plurality of base members 3 to be mounted, a power source 4 as a power source unit that supplies electric power to the LED 2 and is arranged in the cylindrical member 1, and a support member 8 that supports the power source 4 on the cylindrical member 1 (see FIG. 4). A cable insertion cap 9 that covers one opening of the cylindrical member 1, a ventilation cap 10 that covers the other opening of the cylindrical member 1, and an adjusting member 11 provided on the ventilation cap 10 that allows gas to permeate. .. In addition, in FIG. 2 and FIGS.

本実施形態では、円筒部材１はガラスで構成され、両端が開口する。円筒部材１の表面には、破損時の飛散を防止する樹脂膜を形成してもよい。ＬＥＤ２は、平面状または矩形の発光面２ａを有するチップ型のＬＥＤである。 In the present embodiment, the cylindrical member 1 is made of glass and both ends are open. A resin film may be formed on the surface of the cylindrical member 1 to prevent scattering at the time of breakage. The LED 2 is a chip-type LED having a flat or rectangular light emitting surface 2a.

ベース部材３は可撓性を有するフレキシブル基板であり、例えば、ポリイミドなどの基材に銅箔のプリント配線が設けられて構成される。なお、ベース部材３は、リジッド基板でもよい。ベース部材３は、帯状である。複数のベース部材３は、互いに円筒部材１の周方向にずれ、それぞれ円筒部材１の中心軸に沿って円筒部材１の内周に直線状に配置される。本実施形態では、図２，３に示すように、２列のベース部材３を備え、一方のベース部材３は、他のベース部材３と、中心軸を挟んで対向するように配置される。つまり、２列のベース部材３は、互いに円筒部材１の周方向に１８０°ずれて配置される。 The base member 3 is a flexible substrate having flexibility, and is configured by, for example, a substrate such as polyimide provided with printed wiring of copper foil. The base member 3 may be a rigid substrate. The base member 3 has a strip shape. The plurality of base members 3 are displaced from each other in the circumferential direction of the cylindrical member 1, and are arranged linearly on the inner circumference of the cylindrical member 1 along the central axis of the cylindrical member 1, respectively. In the present embodiment, as shown in FIGS. 2 and 3, two rows of base members 3 are provided, and one base member 3 is arranged so as to face the other base member 3 with a central axis interposed therebetween. That is, the two rows of base members 3 are arranged so as to be offset from each other by 180 ° in the circumferential direction of the cylindrical member 1.

図２，３に示すように、ＬＥＤ２は円筒部材１の中心軸に向けて配置される。具体的に言うと、ＬＥＤ２は、ＬＥＤ２の光軸が円筒部材１の中心軸Ｏと直交するように配置される。平面状の発光面２ａを有するＬＥＤ２では、円筒部材１の径が発光面２ａと直交する。なお、ＬＥＤ２は、光軸が円筒部材１の中心軸Ｏと直交する構成に限られず、ＬＥＤ２の光軸が円筒部材１の内周面と交差するように構成されればよい。 As shown in FIGS. 2 and 3, the LED 2 is arranged toward the central axis of the cylindrical member 1. Specifically, the LED 2 is arranged so that the optical axis of the LED 2 is orthogonal to the central axis O of the cylindrical member 1. In the LED 2 having a flat light emitting surface 2a, the diameter of the cylindrical member 1 is orthogonal to the light emitting surface 2a. The LED 2 is not limited to a configuration in which the optical axis is orthogonal to the central axis O of the cylindrical member 1, and may be configured so that the optical axis of the LED 2 intersects the inner peripheral surface of the cylindrical member 1.

また、ＬＥＤ２は、ベース部材３の長手方向に等間隔を空けて配置される。ＬＥＤ２が配置される間隔は、ベース部材３の長手方向に等間隔でなくてもよい。ベース部材３には列ごとに異なった間隔でＬＥＤ２が配置されてもよい。 Further, the LEDs 2 are arranged at equal intervals in the longitudinal direction of the base member 3. The intervals at which the LEDs 2 are arranged do not have to be evenly spaced in the longitudinal direction of the base member 3. The LEDs 2 may be arranged on the base member 3 at different intervals for each row.

ここで、本発明の理解を容易にするために、図４及び図５を参照して、本実施形態の比較例に係る直管型ＬＥＤ照明４００について説明する。比較例に係る直管型ＬＥＤ照明４００の説明では、本実施形態に係る直管型ＬＥＤ照明１００と同様の構成には同様の符号を付して説明を適宜省略する。また、以下では、円筒部材１の中心軸を中心として、図４中上側を０°、右側を９０°、下側を１８０°、左側を２７０°とする角度位置を設定して説明する。また、図５は、図３及び図４に示す角度位置に対応して、円筒部材１の外周における照射光の強度を表したグラフ図である。なお、図５のグラフ図は、本発明の理解を容易にするために模式的に示したものであり、厳密なものではない。 Here, in order to facilitate the understanding of the present invention, the straight tube type LED illumination 400 according to the comparative example of the present embodiment will be described with reference to FIGS. 4 and 5. In the description of the straight tube type LED lighting 400 according to the comparative example, the same components as those of the straight tube type LED lighting 100 according to the present embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate. Further, in the following, an angular position will be set and described with the central axis of the cylindrical member 1 as the center, with the upper side in FIG. 4 being 0 °, the right side being 90 °, the lower side being 180 °, and the left side being 270 °. Further, FIG. 5 is a graph showing the intensity of the irradiation light on the outer circumference of the cylindrical member 1 corresponding to the angular positions shown in FIGS. 3 and 4. The graph of FIG. 5 is schematically shown for facilitating the understanding of the present invention, and is not rigorous.

比較例に係る直管型ＬＥＤ照明４００は、１列のベース部材３のみが１８０°の角度位置において円筒部材１に配置される点で、本実施形態に係る直管型ＬＥＤ照明１００とは相違する。 The straight tube type LED lighting 400 according to the comparative example is different from the straight tube type LED lighting 100 according to the present embodiment in that only one row of base members 3 is arranged on the cylindrical member 1 at an angle position of 180 °. To do.

一般に、ＬＥＤの照射光は強い指向性を有するため、ＬＥＤの光軸上では強度が高い光が照射される一方、ＬＥＤの発光面の裏側には、そのＬＥＤの照射光は届かない。ＬＥＤを用いた照明では、ＬＥＤの照射光の届かない死角が生じると、配光特性が低下する。 In general, since the irradiation light of an LED has strong directivity, high-intensity light is emitted on the optical axis of the LED, but the irradiation light of the LED does not reach the back side of the light emitting surface of the LED. In lighting using LEDs, if a blind spot that the LED irradiation light does not reach occurs, the light distribution characteristics deteriorate.

よって、１列のベース部材３のみが配置される直管型ＬＥＤ照明４００では、図４に示すように、円筒部材１の外周における０°の角度位置付近の領域においては、ＬＥＤ２の光軸上の領域Ｒ４１において照射光の強度が最も高く、光軸から離れるにしたがって強度は低下する。つまり、ＬＥＤ２の光軸付近の領域Ｒ４１の照射光の強度が相対的に高く、光軸から離れた領域Ｒ４２は照射光の強度が相対的に低い（図５参照）。 Therefore, in the straight tube type LED illumination 400 in which only one row of the base members 3 is arranged, as shown in FIG. 4, in the region near the 0 ° angle position on the outer circumference of the cylindrical member 1, the LED 2 is on the optical axis. The intensity of the irradiation light is the highest in the region R41, and the intensity decreases as the distance from the optical axis increases. That is, the intensity of the irradiation light in the region R41 near the optical axis of the LED 2 is relatively high, and the intensity of the irradiation light in the region R42 away from the optical axis is relatively low (see FIG. 5).

一方、円筒部材１の外周における１８０°の角度位置付近の領域（ＬＥＤ２の発光面２ａの裏側の領域Ｒ４３）は、ＬＥＤ２の照射光が届かない死角となり、ＬＥＤ２の照射光の強度が低い。したがって、比較例に係る直管型ＬＥＤ照明４００では、ＬＥＤ２の光軸上の領域Ｒ４１で照射光の強度が最も高く、この領域Ｒ４１から円筒部材１の周方向に離れるにつれて照射光の強度が低くなり、円筒部材１の周方向における照射光の強度が不均一となる（図５参照）。このように、比較例に係る直管型ＬＥＤ照明４００は、配光特性が良好とは言えない。 On the other hand, the region near the 180 ° angular position on the outer circumference of the cylindrical member 1 (the region R43 on the back side of the light emitting surface 2a of the LED 2) is a blind spot where the irradiation light of the LED 2 does not reach, and the intensity of the irradiation light of the LED 2 is low. Therefore, in the straight tube type LED illumination 400 according to the comparative example, the intensity of the irradiation light is the highest in the region R41 on the optical axis of the LED 2, and the intensity of the irradiation light decreases as the distance from this region R41 in the circumferential direction of the cylindrical member 1 decreases. As a result, the intensity of the irradiation light in the circumferential direction of the cylindrical member 1 becomes non-uniform (see FIG. 5). As described above, the straight tube type LED lighting 400 according to the comparative example cannot be said to have good light distribution characteristics.

これに対し、本実施形態の直管型ＬＥＤ照明１００では、図２，３に示すように、２列のベース部材３は、他のベース部材３と、中心軸を挟んで対向するように配置される。直管型ＬＥＤ照明１００では、図３に示すように、２列のベース部材３は、０°と１８０°の角度位置に配置される。つまり、一方のＬＥＤ２は、他方のＬＥＤ２の光軸上に配置される。そのため、一方のＬＥＤ２から光軸に沿って照射される光は、円筒部材１を透過せず、他方のＬＥＤ２と当該他方のＬＥＤ２が搭載されるベース部材３によって遮断される。また、１８０°の角度位置に配置されたＬＥＤ２を基準に考えると、当該ＬＥＤ２の背面の領域（図３中の領域Ｒ１１）を除き当該ＬＥＤ２の照射光が届かない死角となる領域（図３中の領域Ｒ１２）には、対向する他方のＬＥＤ２（図３中上側のＬＥＤ２）から光が照射される。０°の角度位置に配置されたＬＥＤ２を基準としても同様に、当該ＬＥＤ２の背面の領域（図３中の領域Ｒ２１）を除き当該ＬＥＤ２の照射光が届かない死角となる領域（図３中の領域Ｒ２２）には、対向する他方のＬＥＤ２（図３中下側のＬＥＤ２）から光が照射される。 On the other hand, in the straight tube type LED lighting 100 of the present embodiment, as shown in FIGS. 2 and 3, the two rows of base members 3 are arranged so as to face the other base members 3 with the central axis interposed therebetween. Will be done. In the straight tube type LED illumination 100, as shown in FIG. 3, the two rows of base members 3 are arranged at angle positions of 0 ° and 180 °. That is, one LED 2 is arranged on the optical axis of the other LED 2. Therefore, the light emitted from one LED 2 along the optical axis does not pass through the cylindrical member 1 and is blocked by the other LED 2 and the base member 3 on which the other LED 2 is mounted. Further, considering the LED2 arranged at an angle position of 180 ° as a reference, a blind spot where the irradiation light of the LED2 does not reach except for the area on the back surface of the LED2 (area R11 in FIG. 3) (in FIG. 3). Area R12) is irradiated with light from the other LED2 (upper LED2 in FIG. 3) facing the region R12). Similarly, even when the LED 2 arranged at an angle position of 0 ° is used as a reference, a blind spot (in FIG. 3) where the irradiation light of the LED 2 does not reach except for the region on the back surface of the LED 2 (region R21 in FIG. 3). The region R22) is irradiated with light from the other LED2 (LED2 on the lower side in FIG. 3) facing the region R22).

よって、直管型ＬＥＤ照明１００の配光特性は、図５に示すように、０°の角度位置付近（図３中下側のＬＥＤ２の光軸上付近の領域Ｒ２１）の強度は直管型ＬＥＤ照明４００よりも低く、１８０°の角度位置付近（図３中下側のＬＥＤ２から死角となる領域Ｒ１２）では直管型ＬＥＤ照明４００よりも強度が高くなる。したがって、比較例に係る直管型ＬＥＤ照明４００と比較して、円筒部材１の周方向における光の強度がより均一となり、直管型ＬＥＤ照明１００の配光特性が改善される。なお、ＬＥＤ２の照射光が届かない死角とは、当該ＬＥＤ２の光が直接照射されないことを意味し、当該ＬＥＤ２の反射光や他のＬＥＤ２の光が照射されないことを意味するものではない。 Therefore, as shown in FIG. 5, the light distribution characteristic of the straight tube type LED illumination 100 is such that the intensity near the 0 ° angular position (region R21 near the optical axis of the LED 2 on the lower side in FIG. 3) is the straight tube type. It is lower than the LED illumination 400, and the intensity is higher than that of the straight tube type LED illumination 400 in the vicinity of the 180 ° angle position (the region R12 from the lower LED 2 in FIG. 3 to the blind spot). Therefore, as compared with the straight tube type LED lighting 400 according to the comparative example, the light intensity in the circumferential direction of the cylindrical member 1 becomes more uniform, and the light distribution characteristics of the straight tube type LED lighting 100 are improved. The blind spot that the irradiation light of the LED 2 does not reach means that the light of the LED 2 is not directly irradiated, and does not mean that the reflected light of the LED 2 or the light of another LED 2 is not irradiated.

また、比較例に係る直管型ＬＥＤ照明４００では、ＬＥＤ２の光軸から離れるほど照射光の強度は低下する。これに対し、本実施形態の直管型ＬＥＤ照明１００は、一方の死角に他方のＬＥＤ２によって光が照射されることで、図５に示すグラフ図では、直管型ＬＥＤ照明１００の配光特性は、９０°及び２７０°方向に延びる扁平な、いわゆるオーバル形状となる。このように、直管型ＬＥＤ照明１００の照射光は、ＬＥＤ２の光軸に沿った方向（図３中上下方向）よりも、円筒部材１の中心軸Ｏ及びＬＥＤ２の光軸のそれぞれに垂直な方向（図３中左右方向）により長く分布する。 Further, in the straight tube type LED illumination 400 according to the comparative example, the intensity of the irradiation light decreases as the distance from the optical axis of the LED 2 increases. On the other hand, in the straight tube type LED lighting 100 of the present embodiment, one blind spot is irradiated with light by the other LED2, and in the graph shown in FIG. 5, the light distribution characteristics of the straight tube type LED lighting 100 Has a flat, so-called oval shape extending in the 90 ° and 270 ° directions. As described above, the irradiation light of the straight tube type LED illumination 100 is perpendicular to the central axis O of the cylindrical member 1 and the optical axis of the LED 2 rather than the direction along the optical axis of the LED 2 (vertical direction in FIG. 3). It is distributed longer in the direction (left-right direction in FIG. 3).

内照式看板である看板装置２００では、照射光の強度が特定の位置で強いよりも、全体が均一な方が、表示部である正面板１１１の視認性が向上し、望ましい場合もある。蛍光灯を光源とする一般的な看板装置では、蛍光灯の配光特性は、角度位置によらず略均一であるため、正面板１１１の見え方に光ムラが生じる可能性がある。これに対し、上述のように、本実施形態に係る直管型ＬＥＤ照明１００は、一方向（図３中左右方向）に照射光の分布が延びるような配光特性を有する（図５参照）。よって、図３に示すように、正面板１１１に対して、ＬＥＤ２の光軸が略垂直となるように直管型ＬＥＤ照明１００を看板本体１１０内に配置することで、蛍光灯と比較して、正面板１１１をより均一に発光させることができる。 In the signboard device 200, which is an internally illuminated signboard, it may be desirable that the intensity of the irradiation light is uniform as a whole rather than being strong at a specific position because the visibility of the front plate 111, which is a display unit, is improved. In a general signboard device using a fluorescent lamp as a light source, the light distribution characteristics of the fluorescent lamp are substantially uniform regardless of the angular position, so that there is a possibility that light unevenness may occur in the appearance of the front plate 111. On the other hand, as described above, the straight tube type LED illumination 100 according to the present embodiment has a light distribution characteristic such that the distribution of the irradiation light extends in one direction (left-right direction in FIG. 3) (see FIG. 5). .. Therefore, as shown in FIG. 3, by arranging the straight tube type LED illumination 100 in the signboard main body 110 so that the optical axis of the LED 2 is substantially perpendicular to the front plate 111, as compared with the fluorescent lamp. , The front plate 111 can be made to emit light more uniformly.

また、ＬＥＤ２が発光面２ａを円筒部材１の中心軸に向けて配置され、ＬＥＤ２が搭載されるベース部材３が円筒部材１の内周に配置されるため、ＬＥＤ２が円筒部材１の中心付近に配置される場合と比較すると、ＬＥＤ２から対向する円筒部材１の内周までの距離が長い。つまり、ＬＥＤ２の照射光がより広がった状態で円筒部材１内で反射される。そのため、円筒部材１外のより広角にわたってＬＥＤ２の照射光が散乱される。よって、円筒部材１外への光の散乱が広角となることにより、直管型ＬＥＤ照明１００の配光特性が改善される。 Further, since the LED 2 is arranged with the light emitting surface 2a directed toward the central axis of the cylindrical member 1 and the base member 3 on which the LED 2 is mounted is arranged on the inner circumference of the cylindrical member 1, the LED 2 is located near the center of the cylindrical member 1. The distance from the LED 2 to the inner circumference of the opposing cylindrical member 1 is longer than when it is arranged. That is, the irradiation light of the LED 2 is reflected in the cylindrical member 1 in a more spread state. Therefore, the irradiation light of the LED 2 is scattered over a wider angle outside the cylindrical member 1. Therefore, the light scattering characteristics to the outside of the cylindrical member 1 are wide-angle, so that the light distribution characteristics of the straight tube LED illumination 100 are improved.

これらの構成により、光を拡散させるレンズ等の部材を追加で設けなくても、直管型ＬＥＤ照明１００の配光特性が改善される。 With these configurations, the light distribution characteristics of the straight tube type LED illumination 100 can be improved without additionally providing a member such as a lens for diffusing light.

図６は、電源４周辺の構成を示す断面図である。 FIG. 6 is a cross-sectional view showing the configuration around the power supply 4.

図２，６に示すように、電源４は、曲面状の角部を有する円柱型の構成を有する。電源４の表面は、ＬＥＤ２からの照射光を反射する例えば金属などの光反射部材で構成される。 As shown in FIGS. 2 and 6, the power supply 4 has a cylindrical structure having curved corners. The surface of the power supply 4 is composed of a light reflecting member such as metal that reflects the irradiation light from the LED 2.

電源４は、直管型ＬＥＤ照明１００を軸方向に複数突き合わせて使用できるように、円筒部材１内に配置される。 The power supply 4 is arranged in the cylindrical member 1 so that a plurality of straight tube type LED lights 100 can be used by butting them in the axial direction.

一般に、電源が円筒部材内に配置される構成では、電源によりＬＥＤからの照射光が遮蔽されるため、直管型ＬＥＤ照明の配光特性が低下するおそれがある。 Generally, in a configuration in which the power supply is arranged in the cylindrical member, the irradiation light from the LED is shielded by the power supply, so that the light distribution characteristic of the straight tube type LED lighting may deteriorate.

これに対し、直管型ＬＥＤ照明１００は、電源４の表面が光反射部材で構成されるため、電源４によりＬＥＤ２からの照射光が反射される。これにより、電源４が円筒部材１内に配置される構成でも、直管型ＬＥＤ照明１００の配光特性の低下が抑制される。 On the other hand, in the straight tube type LED illumination 100, since the surface of the power supply 4 is composed of a light reflecting member, the irradiation light from the LED 2 is reflected by the power supply 4. As a result, even if the power supply 4 is arranged in the cylindrical member 1, the deterioration of the light distribution characteristic of the straight tube type LED lighting 100 is suppressed.

電源４は、電源固定台座５に固定される。電源固定台座５は、直径よりも高さが低い円盤状に形成される。電源固定台座５は、一端面である平面部５ａと、他端面に形成され電源４が嵌合する凹部５ｂと、凹部５ｂの底面に形成され電源固定台座５を貫通する孔５ｃと、を有する。電源４は、電源固定台座５の凹部５ｂに圧入されることにより、電源固定台座５に固定される。 The power supply 4 is fixed to the power supply fixing pedestal 5. The power supply fixing pedestal 5 is formed in a disk shape having a height lower than the diameter. The power supply fixing pedestal 5 has a flat surface portion 5a which is one end surface, a recess 5b formed on the other end surface and into which the power supply 4 fits, and a hole 5c formed on the bottom surface of the recess 5b and penetrating the power supply fixing pedestal 5. .. The power supply 4 is fixed to the power supply fixing pedestal 5 by being press-fitted into the recess 5b of the power supply fixing pedestal 5.

図２，６に示すように、電源４には、円筒部材１の外部から電源４及びＬＥＤ２に電力を供給する電源ケーブル６が接続される。電源ケーブル６が、特許請求の範囲におけるケーブルに相当する。電源ケーブル６は、電源固定台座５の孔５ｃを通じて電源４に接続される。つまり、孔５ｃは、電源４の電源ケーブル６との接続位置に面し、電源ケーブル６が挿通可能に構成される。電源ケーブル６によって外部の電源（図示省略）から電源４に電力が供給され、電源４から延びる電源線７がベース部材３の配線と電気的に接続されることによって、ＬＥＤ２に電力が供給される。電源ケーブル６は、平型ケーブル等、電源ケーブル６からの放熱が容易な構成であることが望ましい。 As shown in FIGS. 2 and 6, a power cable 6 for supplying power to the power supply 4 and the LED 2 from the outside of the cylindrical member 1 is connected to the power supply 4. The power cable 6 corresponds to the cable in the claims. The power cable 6 is connected to the power supply 4 through the hole 5c of the power supply fixing pedestal 5. That is, the hole 5c faces the connection position of the power supply 4 with the power cable 6, and the power cable 6 can be inserted therethrough. Power is supplied to the power supply 4 from an external power supply (not shown) by the power cable 6, and power is supplied to the LED 2 by electrically connecting the power supply line 7 extending from the power supply 4 to the wiring of the base member 3. .. It is desirable that the power cable 6 has a configuration such as a flat cable that easily dissipates heat from the power cable 6.

図２に示すように、電源固定台座５は、外周部５ｄが円筒部材１の内周と嵌合するように構成される。電源固定台座５は、円筒部材１の内周に圧入されることで、円筒部材１に固定される。よって、電源４は、電源固定台座５を介して円筒部材１に固定される。 As shown in FIG. 2, the power supply fixing pedestal 5 is configured such that the outer peripheral portion 5d fits with the inner circumference of the cylindrical member 1. The power supply fixing pedestal 5 is fixed to the cylindrical member 1 by being press-fitted into the inner circumference of the cylindrical member 1. Therefore, the power supply 4 is fixed to the cylindrical member 1 via the power supply fixing pedestal 5.

電源４は、内部に樹脂が充填される。そのため、電源４の内部の熱は電源４の表面に伝達される。また、電源４は、電源４の表面の熱を円筒部材１に伝達可能な支持材（図示省略）を介して、円筒部材１に支持されることが望ましい。これらの構成により、電源４で生じた熱は、電源４内の樹脂，電源４の表面，支持材，及び円筒部材１を通じて、円筒部材１外に放熱される。これにより、熱による円筒部材１の破損や、ＬＥＤ２の劣化が防止される。支持材は、ＬＥＤ２の直接の照射光ができるだけ遮蔽されない位置に配置されることが望ましい。 The power supply 4 is filled with resin. Therefore, the heat inside the power supply 4 is transferred to the surface of the power supply 4. Further, it is desirable that the power supply 4 is supported by the cylindrical member 1 via a support material (not shown) capable of transferring the heat of the surface of the power supply 4 to the cylindrical member 1. With these configurations, the heat generated in the power supply 4 is dissipated to the outside of the cylindrical member 1 through the resin in the power supply 4, the surface of the power supply 4, the support material, and the cylindrical member 1. This prevents damage to the cylindrical member 1 and deterioration of the LED 2 due to heat. It is desirable that the support material is arranged at a position where the direct irradiation light of the LED 2 is not shielded as much as possible.

図７は、ケーブル挿通キャップ９を図２におけるＢ方向から見た図である。図８は、ケーブル挿通キャップ９の図７におけるＤ−Ｄ線断面図である。図９は、通気キャップ１０を図２におけるＣ方向から見た図である。図１０は、通気キャップ１０の図９におけるＥ−Ｅ線断面図である。 FIG. 7 is a view of the cable insertion cap 9 as viewed from the B direction in FIG. FIG. 8 is a sectional view taken along line DD of FIG. 7 of the cable insertion cap 9. FIG. 9 is a view of the ventilation cap 10 as viewed from the C direction in FIG. FIG. 10 is a sectional view taken along line EE of FIG. 9 of the ventilation cap 10.

図７，８に示すように、ケーブル挿通キャップ９は、透光性を有し、直径よりも高さが低い円盤状に形成される。ケーブル挿通キャップ９は、一端面である平面部９ａと、他端面に形成され円筒部材１と嵌合する凹部９ｂと、凹部９ｂの底面に形成される孔９ｃと、孔９ｃから円盤の径方向に延びケーブル挿通キャップ９を貫通する溝９ｄと、を有する。ケーブル挿通キャップ９は、円筒部材１が凹部９ｂに圧入されることで円筒部材１に取り付けられる。ケーブル挿通キャップ９によって、円筒部材１内からの電源４及び電源固定台座５の脱落が防止される。ケーブル挿通キャップ９が円筒部材１に取り付けられた状態では、凹部９ｂ，孔９ｃ，及び溝９ｄが、円筒部材１の内部と外部とを連通する。孔９ｃ及び溝９ｄには、電源ケーブル６が挿通される。 As shown in FIGS. 7 and 8, the cable insertion cap 9 has a translucent property and is formed in a disk shape having a height lower than the diameter. The cable insertion cap 9 has a flat surface portion 9a which is one end surface, a recess 9b formed on the other end surface and fitted with the cylindrical member 1, a hole 9c formed in the bottom surface of the recess 9b, and a radial direction of the disk from the hole 9c. It has a groove 9d that extends to and penetrates the cable insertion cap 9. The cable insertion cap 9 is attached to the cylindrical member 1 by press-fitting the cylindrical member 1 into the recess 9b. The cable insertion cap 9 prevents the power supply 4 and the power supply fixing pedestal 5 from falling off from the inside of the cylindrical member 1. When the cable insertion cap 9 is attached to the cylindrical member 1, the recess 9b, the hole 9c, and the groove 9d communicate the inside and the outside of the cylindrical member 1. The power cable 6 is inserted into the hole 9c and the groove 9d.

孔９ｃは、電源固定台座５及びケーブル挿通キャップ９が円筒部材１に取り付けられた状態で、電源固定台座５の孔５ｃと連通し、電源ケーブル６が挿通される。溝９ｄは、電源ケーブル６を収容可能に構成され、電源ケーブル６が折り曲げられて挿通される。溝９ｄは、電源ケーブル６が収容された際、電源ケーブル６の一部が溝９ｄから平面部９ａを越えて露出しない深さに構成される。 The hole 9c communicates with the hole 5c of the power supply fixing pedestal 5 in a state where the power supply fixing pedestal 5 and the cable insertion cap 9 are attached to the cylindrical member 1, and the power cable 6 is inserted through the hole 9c. The groove 9d is configured to accommodate the power cable 6, and the power cable 6 is bent and inserted. The groove 9d is configured to have a depth at which a part of the power cable 6 is not exposed from the groove 9d beyond the flat surface portion 9a when the power cable 6 is accommodated.

図９，１０に示すように、通気キャップ１０は、ケーブル挿通キャップ９と同様に、透光性を有し、直径よりも高さが低い円盤状に形成される。通気キャップ１０は、一端面である平面部１０ａと、他端面に形成され円筒部材１が嵌合する凹部１０ｂと、凹部１０ｂの底面に形成される孔１０ｃと、通気キャップ１０の径方向に延びるように平面部１０ａに形成される複数（本実施形態では４つ）の溝１０ｄと、平面部１０ａに形成され孔１０ｃに連通する孔１０ｅと、を有する。溝１０ｄは、孔１０ｅに連通し、通気キャップ１０の外周面に開口する。孔１０ｅは孔１０ｃと同軸的であり、孔１０ｃよりも大径に形成される。通気キャップ１０は、円筒部材１が凹部１０ｂに圧入されることで円筒部材１に取り付けられる。通気キャップ１０が円筒部材１に取り付けられた状態では、凹部１０ｂ，孔１０ｃ，孔１０ｅ，及び溝１０ｄが、円筒部材１の内部と外部とを連通する。 As shown in FIGS. 9 and 10, the ventilation cap 10 has a translucent property and is formed in a disk shape having a height lower than the diameter, similar to the cable insertion cap 9. The ventilation cap 10 extends in the radial direction of the ventilation cap 10 with a flat surface portion 10a which is one end surface, a recess 10b formed on the other end surface and into which the cylindrical member 1 fits, a hole 10c formed on the bottom surface of the recess 10b. As described above, it has a plurality of (four in this embodiment) grooves 10d formed in the flat surface portion 10a, and holes 10e formed in the flat surface portion 10a and communicating with the holes 10c. The groove 10d communicates with the hole 10e and opens on the outer peripheral surface of the ventilation cap 10. The hole 10e is coaxial with the hole 10c and is formed to have a diameter larger than that of the hole 10c. The ventilation cap 10 is attached to the cylindrical member 1 by press-fitting the cylindrical member 1 into the recess 10b. When the ventilation cap 10 is attached to the cylindrical member 1, the recess 10b, the hole 10c, the hole 10e, and the groove 10d communicate the inside and the outside of the cylindrical member 1.

通気キャップ１０の孔１０ｅ内には、気体の透過を許容し塵や水等の異物の侵入を防ぐ調整部材１１が孔１０ｃを覆うように設けられる。調整部材１１には、フィルタ等の多孔質材が用いられる。なお、調整部材１１は、孔１０ｃを開閉するバルブであってもよい。調整部材１１がバルブの場合には、円筒部材１の内部圧力の増加に伴い開弁することで、円筒部材１の内部圧力を減少させる。調整部材１１をバルブとする場合、公知のバルブを採用できるため、詳細な説明は省略する。 In the hole 10e of the ventilation cap 10, an adjusting member 11 that allows the permeation of gas and prevents the intrusion of foreign matter such as dust and water is provided so as to cover the hole 10c. A porous material such as a filter is used for the adjusting member 11. The adjusting member 11 may be a valve that opens and closes the hole 10c. When the adjusting member 11 is a valve, the valve is opened as the internal pressure of the cylindrical member 1 increases, thereby reducing the internal pressure of the cylindrical member 1. When the adjusting member 11 is used as a valve, a known valve can be used, and therefore detailed description thereof will be omitted.

孔１０ｃは、孔１０ｅによって平面部１０ａから露出する。そのため、調整部材１１を通気キャップ１０に容易に取り付けることができる。円筒部材１がケーブル挿通キャップ９及び通気キャップ１０によって封止された状態でも、円筒部材１の内部圧力は、孔１０ｃ，溝１０ｄ及び調整部材１１を通じて円筒部材１の外部へ逃がすことができるため、円筒部材１の内部圧力の増加による円筒部材１の破損が防止される。また、調整部材１１は通気キャップ１０に設けられるため、調整部材１１によりＬＥＤ２の照射光が遮蔽されることがなく、直管型ＬＥＤ照明１００の配光特性の低下が抑制される。 The hole 10c is exposed from the flat surface portion 10a by the hole 10e. Therefore, the adjusting member 11 can be easily attached to the ventilation cap 10. Even when the cylindrical member 1 is sealed by the cable insertion cap 9 and the ventilation cap 10, the internal pressure of the cylindrical member 1 can be released to the outside of the cylindrical member 1 through the holes 10c, the groove 10d, and the adjusting member 11. Damage to the cylindrical member 1 due to an increase in the internal pressure of the cylindrical member 1 is prevented. Further, since the adjusting member 11 is provided on the ventilation cap 10, the adjusting member 11 does not block the irradiation light of the LED 2, and the deterioration of the light distribution characteristic of the straight tube type LED lighting 100 is suppressed.

円筒部材１にケーブル挿通キャップ９及び通気キャップ１０が取り付けられた状態では、電源ケーブル６はケーブル挿通キャップ９の溝９ｄに収容され、電源ケーブル６の一部が溝９ｄから平面部９ａを越えて露出しない。また、通気キャップ１０の溝１０ｄは円筒部材１の中心軸に対して垂直方向に延びる。この構成では、直管型ＬＥＤ照明１００を円筒部材１の軸方向に複数突き合わせても、電源ケーブル６によってケーブル挿通キャップ９と通気キャップ１０の端面同士の突き合わせが阻害されることがなく、通気キャップ１０の溝１０ｄが塞がれることもない。よって、直管型ＬＥＤ照明１００を円筒部材１の軸方向に複数突き合わせて使用することができる。 When the cable insertion cap 9 and the ventilation cap 10 are attached to the cylindrical member 1, the power cable 6 is housed in the groove 9d of the cable insertion cap 9, and a part of the power cable 6 extends from the groove 9d to the flat surface portion 9a. Not exposed. Further, the groove 10d of the ventilation cap 10 extends in the direction perpendicular to the central axis of the cylindrical member 1. In this configuration, even if a plurality of straight tube type LED lights 100 are butted in the axial direction of the cylindrical member 1, the power cable 6 does not hinder the butting of the end faces of the cable insertion cap 9 and the ventilation cap 10 and the ventilation cap. The groove 10d of 10 is not blocked. Therefore, a plurality of straight tube type LED lights 100 can be used by abutting a plurality of them in the axial direction of the cylindrical member 1.

以上の実施形態によれば、以下に示す効果を奏する。 According to the above embodiment, the following effects are obtained.

直管型ＬＥＤ照明１００は、２列の各ベース部材３は、他のベース部材３と、中心軸を挟んで対向するように配置される。そのため、一方のＬＥＤ２において最も高強度となる光軸上の光は、円筒部材１を透過せず、他方のＬＥＤ２と当該他方のＬＥＤ２が搭載されるベース部材３によって遮断される。これにより、円筒部材１の周方向における光の強度がより均一となり、直管型ＬＥＤ照明１００の配光特性が改善される。さらに、他方のＬＥＤ２によって光が照射されることで、一方のＬＥＤ２の背面の領域を除いた一方のＬＥＤ２から死角となる領域でも、照射光の強度が増加する。よって、円筒部材１の周方向における光の強度がより均一となり、直管型ＬＥＤ照明１００の配光特性が改善される。 In the straight tube type LED lighting 100, each of the two rows of base members 3 is arranged so as to face the other base members 3 with the central axis interposed therebetween. Therefore, the light on the optical axis having the highest intensity in one LED 2 does not pass through the cylindrical member 1 and is blocked by the other LED 2 and the base member 3 on which the other LED 2 is mounted. As a result, the intensity of light in the circumferential direction of the cylindrical member 1 becomes more uniform, and the light distribution characteristics of the straight tube type LED illumination 100 are improved. Further, when the light is irradiated by the other LED2, the intensity of the irradiation light is increased even in the region where the blind spot is formed from the one LED2 excluding the region on the back surface of the one LED2. Therefore, the intensity of light in the circumferential direction of the cylindrical member 1 becomes more uniform, and the light distribution characteristic of the straight tube type LED illumination 100 is improved.

さらに、直管型ＬＥＤ照明１００は、ＬＥＤ２は発光面を円筒部材１の中心軸に向けて配置され、ＬＥＤ２が搭載されるベース部材３が円筒部材１の内周に配置される。そのため、ＬＥＤ２が円筒部材１の中央付近に配置される場合と比較すると、ＬＥＤ２から対向する円筒部材１の内周までの距離が長く、照射光がより広がった状態で円筒部材１内で反射される。よって、円筒部材１外への光の散乱が広角となることにより、直管型ＬＥＤ照明１００の配光特性が改善される。 Further, in the straight tube type LED illumination 100, the LED 2 is arranged with the light emitting surface directed toward the central axis of the cylindrical member 1, and the base member 3 on which the LED 2 is mounted is arranged on the inner circumference of the cylindrical member 1. Therefore, as compared with the case where the LED 2 is arranged near the center of the cylindrical member 1, the distance from the LED 2 to the inner circumference of the opposing cylindrical member 1 is longer, and the irradiation light is reflected in the cylindrical member 1 in a more spread state. To. Therefore, the light scattering characteristics to the outside of the cylindrical member 1 are wide-angle, so that the light distribution characteristics of the straight tube LED illumination 100 are improved.

さらに、電源４の表面は、ＬＥＤ２からの照射光を反射する例えば金属などの光反射部材で構成される。そのため、電源４によりＬＥＤ２からの照射光が反射される。よって、電源４が円筒部材１内に配置される構成でも、直管型ＬＥＤ照明１００の配光特性の低下が抑制される。 Further, the surface of the power supply 4 is composed of a light reflecting member such as metal that reflects the irradiation light from the LED 2. Therefore, the irradiation light from the LED 2 is reflected by the power supply 4. Therefore, even if the power supply 4 is arranged in the cylindrical member 1, the deterioration of the light distribution characteristic of the straight tube type LED lighting 100 is suppressed.

さらに、電源４は、内部に樹脂が充填され、支持材を介して、円筒部材１に支持される。そのため、電源４で生じた熱は、電源４内の樹脂，電源４表面，支持材，及び円筒部材１を通じて、直管型ＬＥＤ照明１００外部に放熱される。よって、円筒部材１内に熱がこもることによる円筒部材１の破損やＬＥＤ２の劣化が防止される。 Further, the power supply 4 is filled with resin and is supported by the cylindrical member 1 via a support material. Therefore, the heat generated by the power supply 4 is dissipated to the outside of the straight tube type LED lighting 100 through the resin in the power supply 4, the surface of the power supply 4, the support material, and the cylindrical member 1. Therefore, damage to the cylindrical member 1 and deterioration of the LED 2 due to heat trapped in the cylindrical member 1 are prevented.

さらに、支持材は、ＬＥＤ２からの直接の照射光ができるだけ遮蔽されない位置に配置される。そのため、支持材によるＬＥＤ２からの照射光の遮蔽が低減される。よって、直管型ＬＥＤ照明１００の配光特性の低下が抑制される。 Further, the support material is arranged at a position where the direct irradiation light from the LED 2 is not shielded as much as possible. Therefore, the shielding of the irradiation light from the LED 2 by the support material is reduced. Therefore, the deterioration of the light distribution characteristic of the straight tube type LED lighting 100 is suppressed.

さらに、通気キャップ１０の孔１０ｃには、気体の透過を許容し塵や水等の異物の侵入を防ぐ調整部材１１が設けられる。そのため、円筒部材１がケーブル挿通キャップ９及び通気キャップ１０によって封止された状態でも、円筒部材１の内部圧力は、孔１０ｃ，溝１０ｄ及び調整部材１１を通じて円筒部材１の外部へ逃がすことができる。よって、ＬＥＤ２や電源４の熱に起因する円筒部材１の内部圧力の増加による円筒部材１の破損が防止される。 Further, the hole 10c of the ventilation cap 10 is provided with an adjusting member 11 that allows gas to permeate and prevents foreign matter such as dust and water from entering. Therefore, even when the cylindrical member 1 is sealed by the cable insertion cap 9 and the ventilation cap 10, the internal pressure of the cylindrical member 1 can be released to the outside of the cylindrical member 1 through the holes 10c, the groove 10d, and the adjusting member 11. .. Therefore, damage to the cylindrical member 1 due to an increase in the internal pressure of the cylindrical member 1 due to the heat of the LED 2 and the power supply 4 is prevented.

さらに、調整部材１１は円筒部材１の内部ではなく、通気キャップ１０に設けられる。そのため、調整部材１１によりＬＥＤ２からの照射光が遮蔽されることがない。よって、直管型ＬＥＤ照明１００の配光特性の低下が抑制される。 Further, the adjusting member 11 is provided not inside the cylindrical member 1 but in the ventilation cap 10. Therefore, the adjusting member 11 does not block the irradiation light from the LED 2. Therefore, the deterioration of the light distribution characteristic of the straight tube type LED lighting 100 is suppressed.

さらに、円筒部材１にケーブル挿通キャップ９及び通気キャップ１０が取り付けられた状態では、電源ケーブル６はケーブル挿通キャップ９の溝９ｄに収容され、電源ケーブル６の一部が溝９ｄから平面部９ａを越えて露出しない。また、通気キャップ１０の溝１０ｄは円筒部材１の中心軸に対して垂直方向に延びる。そのため、直管型ＬＥＤ照明１００を円筒部材１の軸方向に複数突き合わせても、電源ケーブル６によって端面同士の突き合わせが阻害されることがなく、通気キャップ１０の溝１０ｄが塞がれることもない。よって、直管型ＬＥＤ照明１００を円筒部材１の軸方向に複数突き合わせて使用することができる。 Further, in a state where the cable insertion cap 9 and the ventilation cap 10 are attached to the cylindrical member 1, the power cable 6 is housed in the groove 9d of the cable insertion cap 9, and a part of the power cable 6 extends from the groove 9d to the flat surface portion 9a. Not exposed beyond. Further, the groove 10d of the ventilation cap 10 extends in the direction perpendicular to the central axis of the cylindrical member 1. Therefore, even if a plurality of straight tube type LED lights 100 are abutted in the axial direction of the cylindrical member 1, the abutment between the end faces is not hindered by the power cable 6, and the groove 10d of the ventilation cap 10 is not blocked. .. Therefore, a plurality of straight tube type LED lights 100 can be used by abutting a plurality of them in the axial direction of the cylindrical member 1.

次に、本実施形態の変形例について、説明する。以下のような変形例も本発明の範囲内であり、以下の変形例と上記実施形態の各構成とを組み合わせたり、以下の変形例同士を組み合わせたりすることも可能である。 Next, a modification of the present embodiment will be described. The following modifications are also within the scope of the present invention, and it is possible to combine the following modifications with each configuration of the above embodiment, or to combine the following modifications with each other.

（１）上記実施形態では、配線を備えるフレキシブル基板であるベース部材３にＬＥＤ２が搭載される。これに対し、ＬＥＤ２とベース部材３は、ともにシリコン等の樹脂で覆われていてもよい。つまり、図１１に示すように、発光面２２ａを有する複数のＬＥＤ２２と、複数のＬＥＤ２２に電力を供給する配線を有し、複数のＬＥＤ２２が搭載されるベース部材２３と、をシリコン等の樹脂で一体化したＬＥＤテープライト２４を円筒部材２１に複数列取り付けて、直管型ＬＥＤ照明１００を構成してもよい。ＬＥＤテープライト２４は、螺旋状に複数列配置されてもよい。また、図１１に示すように、樹脂で一体化されることでＬＥＤテープライト２４は防水性を有するため、円筒部材２１の外周面に配置することができる。よって、ＬＥＤテープライト２４の円筒部材２１への取り付けが容易となる。なお、この場合には、円筒部材２１は樹脂で構成され、ＬＥＤ２２と面する位置に開口部２１ａを設けることが望ましい。 (1) In the above embodiment, the LED 2 is mounted on the base member 3 which is a flexible substrate provided with wiring. On the other hand, both the LED 2 and the base member 3 may be covered with a resin such as silicon. That is, as shown in FIG. 11, a plurality of LEDs 22 having a light emitting surface 22a and a base member 23 having wirings for supplying power to the plurality of LEDs 22 and on which the plurality of LEDs 22 are mounted are made of a resin such as silicon. A straight tube type LED lighting 100 may be configured by attaching a plurality of rows of integrated LED tape lights 24 to the cylindrical member 21. The LED tape lights 24 may be arranged in a plurality of rows in a spiral shape. Further, as shown in FIG. 11, since the LED tape light 24 has waterproof property by being integrated with the resin, it can be arranged on the outer peripheral surface of the cylindrical member 21. Therefore, the LED tape light 24 can be easily attached to the cylindrical member 21. In this case, it is desirable that the cylindrical member 21 is made of resin and the opening 21a is provided at a position facing the LED 22.

また、上記実施形態では、プリント配線が設けられるフレキシブル基板であるベース部材３に複数のＬＥＤ２が搭載される。これに対し、ＬＥＤ２に電力を供給する配線は、ワイヤ状の配線であってもよい。この場合は、リジッド基板上にＬＥＤを搭載し、各ＬＥＤのリジッド基板同士をワイヤ状の配線により電気的に接続すればよく、リジッド基板及びワイヤ状の配線がベース部材に相当する。また、この場合であっても、図１０に示すように、ベース部材を構成するリジッド基板及びワイヤ状の配線と、各ＬＥＤとを樹脂により一体化してＬＥＤテープライト２４を構成してもよい。 Further, in the above embodiment, a plurality of LEDs 2 are mounted on the base member 3 which is a flexible substrate provided with printed wiring. On the other hand, the wiring that supplies power to the LED 2 may be a wire-shaped wiring. In this case, the LEDs may be mounted on the rigid substrate, and the rigid substrates of the LEDs may be electrically connected to each other by wire-shaped wiring, and the rigid substrate and the wire-shaped wiring correspond to the base member. Further, even in this case, as shown in FIG. 10, the rigid substrate and wire-shaped wiring constituting the base member and each LED may be integrated with a resin to form the LED tape light 24.

＜第２実施形態＞
次に、図１２，１３を参照して、本発明の第２実施形態について、説明する。以下では、上記第１実施形態と異なる点を中心に説明し、上記第１実施形態と同一の構成には同一の符号を付して説明を省略する。 <Second Embodiment>
Next, a second embodiment of the present invention will be described with reference to FIGS. 12 and 13. Hereinafter, the points different from those of the first embodiment will be mainly described, and the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

第２実施形態に係る直管型ＬＥＤ照明２００は、ベース部材３の配置される数及び位置が上記第１実施形態に係る直管型ＬＥＤ照明１００と異なる。直管型ＬＥＤ照明２００は、ベース部材３が円筒部材１の周方向に均等に配置される。つまり、ベース部材３が円筒部材１の周方向に等角度間隔を空けて配置される。 The straight tube LED lighting 200 according to the second embodiment is different from the straight tube LED lighting 100 according to the first embodiment in the number and position of the base members 3 arranged. In the straight tube type LED lighting 200, the base member 3 is evenly arranged in the circumferential direction of the cylindrical member 1. That is, the base members 3 are arranged at equal angular intervals in the circumferential direction of the cylindrical member 1.

図１２，１３に示すように、第２実施形態に係る直管型ＬＥＤ照明２００は、ベース部材３は、３列のベース部材３を備え、各ベース部材３は、他のベース部材３と中心軸を挟んで対向する位置から、円筒部材１の周方向にずれて配置される。つまり、ベース部材３は、他のベース部材３のいずれとも中心軸を挟んで対向しない。また、第１実施形態と同様に、ＬＥＤ２は、円筒部材１の中心軸に向けて配置される。 As shown in FIGS. 12 and 13, in the straight tube type LED lighting 200 according to the second embodiment, the base member 3 includes three rows of base members 3, and each base member 3 is centered with another base member 3. The cylindrical member 1 is arranged so as to be displaced in the circumferential direction from the positions facing each other across the shaft. That is, the base member 3 does not face any of the other base members 3 with the central axis in between. Further, as in the first embodiment, the LED 2 is arranged toward the central axis of the cylindrical member 1.

この構成では、各ベース部材３と対向しないＬＥＤ２が存在する。これにより、ＬＥＤ２から死角となる領域にも、当該ＬＥＤ２とは周方向に離れた位置にある周辺のＬＥＤ２から光が照射される。よって、死角がなくなることにより、円筒部材１の周方向における光の強度が略均一となり、直管型ＬＥＤ照明１００の配光特性が改善される。 In this configuration, there are LEDs 2 that do not face each base member 3. As a result, the region that becomes a blind spot from the LED 2 is also irradiated with light from the peripheral LED 2 located at a position distant from the LED 2 in the circumferential direction. Therefore, by eliminating the blind spot, the light intensity in the circumferential direction of the cylindrical member 1 becomes substantially uniform, and the light distribution characteristics of the straight tube type LED illumination 100 are improved.

なお、４列以上の偶数列のベース部材３が、円筒部材１に等角度間隔で配置されてもよい。この構成では、ベース部材３が、他のベース部材３のいずれかと、中心軸を挟んで対向する。この場合でも、各ベース部材３と対向しないＬＥＤ２が存在する。これにより、あるＬＥＤ２の照射光の届かない死角に、他のＬＥＤ２から光が照射される。よって、直管型ＬＥＤ照明１００の配光特性が改善される。また、５列以上の奇数列のベース部材が、円筒部材１に等角度間隔で配置されてもよい。この構成では、ベース部材３が、他のベース部材３のいずれとも、中心軸を挟んで対向しない。 It should be noted that even-numbered rows of base members 3 of four or more rows may be arranged on the cylindrical member 1 at equal angular intervals. In this configuration, the base member 3 faces any of the other base members 3 with the central axis in between. Even in this case, there is an LED 2 that does not face each base member 3. As a result, the blind spot that the irradiation light of one LED2 does not reach is irradiated with light from another LED2. Therefore, the light distribution characteristic of the straight tube type LED lighting 100 is improved. Further, odd-numbered rows of base members of 5 or more rows may be arranged on the cylindrical member 1 at equal angular intervals. In this configuration, the base member 3 does not face any of the other base members 3 with the central axis in between.

また、ベース部材３の数を増加させることで、直管型ＬＥＤ照明１００の配光特性を改善できる。ベース部材３の数は、ＬＥＤ２の発光効率と直管型ＬＥＤ照明１００としての配光特性とを考慮して、設定すればよい。 Further, by increasing the number of the base members 3, the light distribution characteristics of the straight tube type LED lighting 100 can be improved. The number of base members 3 may be set in consideration of the luminous efficiency of the LED 2 and the light distribution characteristics of the straight tube type LED illumination 100.

なお、直管型ＬＥＤ照明１００を周方向に均一な配光特性とするには、ＬＥＤ２及びベース部材３が円筒部材１に等角度間隔で配置されることが望ましい。しかし、ＬＥＤ２及びベース部材３が円筒部材１に異なる角度間隔で配置されてもよい。ＬＥＤ２及びベース部材３が円筒部材１に等角度間隔で配置されなくとも、複数のＬＥＤ２及びベース部材３が角度をずらして配置されることで、比較例よりも配光特性が改善される。 In order to make the straight tube type LED illumination 100 have uniform light distribution characteristics in the circumferential direction, it is desirable that the LED 2 and the base member 3 are arranged on the cylindrical member 1 at equal angular intervals. However, the LED 2 and the base member 3 may be arranged on the cylindrical member 1 at different angular intervals. Even if the LED 2 and the base member 3 are not arranged on the cylindrical member 1 at equal angular intervals, the light distribution characteristics are improved as compared with the comparative example by arranging the plurality of LEDs 2 and the base member 3 at different angles.

また、例えば、周方向に角度をずらして配置される複数のＬＥＤ２及びベース部材３のうち、一部の領域における複数のＬＥＤ２及びベース部材３の間隔を他の領域における間隔よりも小さくすることで、比較例よりも、周方向全体の光の強度を向上させつつ、特定の一部の領域の光の強度をさらに向上させることができる。つまり、相対的に周方向の配置間隔が狭いＬＥＤ２及びベース部材３の一群によって、特定の領域の光の強度を向上させることができるため、用途に合わせて直管型ＬＥＤ照明１００の配光を制御することができる。 Further, for example, among the plurality of LEDs 2 and the base member 3 arranged at different angles in the circumferential direction, the distance between the plurality of LEDs 2 and the base member 3 in a part of the region is made smaller than the distance between the plurality of LEDs 2 and the base member 3 in the other regions. , It is possible to further improve the light intensity in a specific part of the region while improving the light intensity in the entire circumferential direction as compared with the comparative example. That is, since the intensity of light in a specific region can be improved by a group of LEDs 2 and a base member 3 having a relatively narrow arrangement interval in the circumferential direction, the light distribution of the straight tube type LED illumination 100 can be adjusted according to the application. Can be controlled.

また、複数のベース部材３のうち、一部のベース部材３が、他のベース部材３のいずれかと、中心軸を挟んで対向してもよい。 Further, among the plurality of base members 3, a part of the base members 3 may face any of the other base members 3 with the central axis interposed therebetween.

以下、本発明の各実施形態の構成、作用、及び効果をまとめて説明する。 Hereinafter, the configurations, actions, and effects of each embodiment of the present invention will be collectively described.

直管型ＬＥＤ照明１００，２００は、透光性を有する円筒部材１，２１と、複数のＬＥＤ２，２２と、複数のＬＥＤ２，２２に電力を供給する配線を有し、複数のＬＥＤ２，２２が搭載される複数のベース部材３，２３と、を備え、複数のベース部材３，２３は、互いに円筒部材１，２１の周方向にずれ、それぞれ円筒部材１，２１の中心軸に沿って円筒部材１，２１に直線状に配置され、複数のＬＥＤ２，２２は、円筒部材１，２１の中心軸に向けて配置される。 The straight tube type LED illuminations 100 and 200 have a cylindrical member 1, 21 having translucency, a plurality of LEDs 2, 22, and wiring for supplying power to the plurality of LEDs 2, 22, and the plurality of LEDs 2, 22 are provided. A plurality of base members 3, 23 to be mounted are provided, and the plurality of base members 3, 23 are displaced from each other in the circumferential direction of the cylindrical members 1, 21 and are cylindrical members along the central axis of the cylindrical members 1, 21, respectively. The LEDs 2 and 22 are arranged linearly on the 1st and 2nd, and the plurality of LEDs 2 and 22 are arranged toward the central axis of the cylindrical members 1 and 21.

この構成では、ＬＥＤ２，２２が搭載された複数のベース部材３，２３が直線状に配置されることで、ベース部材３，２３に搭載されたＬＥＤ２，２２が発する光を円筒部材１，２１の周方向にずれて満遍なく照射させることができる。よって、レンズ等の部材を追加で設けなくても、直管型ＬＥＤ照明１００，２００の配光特性が改善される。さらに、ＬＥＤ２，２２は発光面を円筒部材１の中心軸に向けて配置され、ＬＥＤ２，２２が搭載されるベース部材３，２３が円筒部材１，２１の内周に配置される。そのため、ＬＥＤ２，２２が円筒部材１，２１の中央付近に配置される場合と比較すると、ＬＥＤ２，２２から対向する円筒部材１，２１の内周までの距離が長く、照射光がより広がった状態で円筒部材１，２１内で反射される。よって、円筒部材１，２１外への光の散乱が広角となることにより、直管型ＬＥＤ照明１００，２００の配光特性が改善される。 In this configuration, the plurality of base members 3 and 23 on which the LEDs 2 and 22 are mounted are arranged in a straight line, so that the light emitted by the LEDs 2 and 22 mounted on the base members 3 and 23 is emitted from the cylindrical members 1 and 21. It can be irradiated evenly by shifting in the circumferential direction. Therefore, the light distribution characteristics of the straight tube type LED lights 100 and 200 can be improved without additionally providing a member such as a lens. Further, the LEDs 2 and 22 are arranged with the light emitting surface directed toward the central axis of the cylindrical member 1, and the base members 3 and 23 on which the LEDs 2 and 22 are mounted are arranged on the inner circumferences of the cylindrical members 1 and 21. Therefore, as compared with the case where the LEDs 2 and 22 are arranged near the center of the cylindrical members 1 and 21, the distance from the LEDs 2 and 22 to the inner circumference of the opposing cylindrical members 1 and 21 is longer, and the irradiation light is further spread. Is reflected in the cylindrical members 1 and 21. Therefore, the light scattering characteristics to the outside of the cylindrical members 1 and 21 are wide-angle, so that the light distribution characteristics of the straight tube LED illuminations 100 and 200 are improved.

また、複数のベース部材３，２３は、円筒部材１，２１の周方向において、等角度間隔を空けて配置される。 Further, the plurality of base members 3, 23 are arranged at equal angular intervals in the circumferential direction of the cylindrical members 1, 21.

この構成では、ＬＥＤ２，２２から死角となる領域にも、当該ＬＥＤ２，２２とは周方向に離れた位置にある周辺のＬＥＤ２，２２から光が照射される。よって、死角がなくなることにより、円筒部材１，２１の周方向における光の強度が略均一となり、直管型ＬＥＤ照明１００，２００の配光特性が改善される。 In this configuration, the area that becomes a blind spot from the LEDs 2 and 22 is also irradiated with light from the peripheral LEDs 2 and 22 that are located apart from the LEDs 2 and 22 in the circumferential direction. Therefore, by eliminating the blind spot, the light intensity in the circumferential direction of the cylindrical members 1 and 21 becomes substantially uniform, and the light distribution characteristics of the straight tube LED illuminations 100 and 200 are improved.

また、直管型ＬＥＤ照明１００，２００は、２列のベース部材３，２３のみを備える。 Further, the straight tube type LED lights 100 and 200 include only two rows of base members 3 and 23.

この構成では、２列の各ベース部材３，２３は、他のベース部材３，２３と、中心軸を挟んで対向するように配置される。そのため、一方のＬＥＤ２，２２において最も高強度となる光軸上の光は、円筒部材１，２１を透過せず、他方のＬＥＤ２，２２と当該他方のＬＥＤ２が搭載されるベース部材３，２３によって遮断される。これにより、円筒部材１，２１の周方向における光の強度がより均一となり、直管型ＬＥＤ照明１００，２００の配光特性が改善される。さらに、他方のＬＥＤ２，２２によって光が照射されることで、一方のＬＥＤ２，２２の背面の領域を除いた一方のＬＥＤ２，２２から死角となる領域でも、照射光の強度が増加する。よって、円筒部材１，２１の周方向における光の強度がより均一となり、直管型ＬＥＤ照明１００，２００の配光特性が改善される。 In this configuration, each of the two rows of base members 3, 23 is arranged so as to face the other base members 3, 23 with the central axis interposed therebetween. Therefore, the light on the optical axis having the highest intensity in one of the LEDs 2 and 22 does not pass through the cylindrical members 1 and 21 and is transmitted by the other LEDs 2 and 22 and the base members 3 and 23 on which the other LED 2 is mounted. It is blocked. As a result, the light intensity in the circumferential direction of the cylindrical members 1 and 21 becomes more uniform, and the light distribution characteristics of the straight tube LED illuminations 100 and 200 are improved. Further, when the light is irradiated by the other LEDs 2 and 22, the intensity of the irradiation light is increased even in the region where the blind spot is formed from the one LED 2 and 22 excluding the region on the back surface of the one LED 2 and 22. Therefore, the light intensity in the circumferential direction of the cylindrical members 1 and 21 becomes more uniform, and the light distribution characteristics of the straight tube type LED lights 100 and 200 are improved.

また、複数のベース部材３，２３は、円筒部材１，２１の周方向において、異なる角度間隔を空けて配置される。 Further, the plurality of base members 3 and 23 are arranged at different angular intervals in the circumferential direction of the cylindrical members 1 and 21.

この構成では、複数のＬＥＤ２，２２及びベース部材３，２３が角度をずらして配置される。よって、直管型ＬＥＤ照明１００，２００の配光特性が改善される。さらに、一部のＬＥＤ２，２２及びベース部材３，２３の間隔を他の間隔よりも小さくすることで、周方向全体の光の強度を向上させつつ、特定の一部の領域の光の強度をさらに向上させることができる。よって、用途に合わせて直管型ＬＥＤ照明１００の配光を制御することができる。 In this configuration, the plurality of LEDs 2, 22 and the base members 3, 23 are arranged at different angles. Therefore, the light distribution characteristics of the straight tube type LED lights 100 and 200 are improved. Further, by making the distance between some LEDs 2 and 22 and the base members 3 and 23 smaller than the other distances, the light intensity in the entire circumferential direction is improved, and the light intensity in a specific part region is increased. It can be further improved. Therefore, the light distribution of the straight tube type LED lighting 100 can be controlled according to the application.

以上、本発明の実施形態について説明したが、上記実施形態は本発明の適用例の一部を示したに過ぎず、本発明の技術的範囲を上記実施形態の具体的構成に限定する趣旨ではない。 Although the embodiments of the present invention have been described above, the above embodiments are only a part of the application examples of the present invention, and the technical scope of the present invention is limited to the specific configurations of the above embodiments. Absent.

なお、本明細書に記載の垂直とは、必ずしも厳密な垂直を意味するものではなく、厳密な垂直から多少ずれた状態も含む。 The vertical described in the present specification does not necessarily mean a strict vertical, and includes a state slightly deviated from the strict vertical.

１００，２００…直管型ＬＥＤ照明、１，２１…円筒部材、２，２２…ＬＥＤ、２ａ，２２ａ…発光面、３，２３…ベース部材、４…電源（電源部）、６…電源ケーブル（ケーブル）、９…ケーブル挿通キャップ、９ｃ…孔（第１挿通通路）、９ｄ…溝（第２挿通通路）、１０…通気キャップ、１０ｃ…孔（第１通路）、１０ｄ…溝（第２通路）、１１…調整部材 100, 200 ... Straight tube LED lighting, 1,21 ... Cylindrical member, 2,22 ... LED, 2a, 22a ... Light emitting surface, 3,23 ... Base member, 4 ... Power supply (power supply unit), 6 ... Power cable ( Cable), 9 ... Cable insertion cap, 9c ... Hole (1st insertion passage), 9d ... Groove (2nd insertion passage), 10 ... Ventilation cap, 10c ... Hole (1st passage), 10d ... Groove (2nd passage) ), 11 ... Adjusting member

本発明は、内照式の看板装置であって、箱状の看板本体と、看板本体の内部に設けられる直管型ＬＥＤ照明と、を備え、直管型ＬＥＤ照明は、透光性を有する円筒部材と、複数のＬＥＤと、複数のＬＥＤに電力を供給する配線を有し、複数のＬＥＤが搭載される複数のベース部材と、を備え、複数のベース部材は、互いに円筒部材の周方向にずれ、それぞれ円筒部材の中心軸に沿って円筒部材に直線状に配置され、複数のＬＥＤは、光軸が円筒部材の内周面と交差するように円筒部材の中心軸に向けて配置されることを特徴とする。 The present invention is an internally illuminated signboard device, comprising a box-shaped signboard body and a straight tube type LED lighting provided inside the signboard body, and the straight tube type LED lighting has translucency. A cylindrical member, a plurality of LEDs, and a plurality of base members having wirings for supplying power to the plurality of LEDs and mounting the plurality of LEDs are provided, and the plurality of base members are provided with each other in the circumferential direction of the cylindrical member. The LEDs are arranged linearly on the cylindrical member along the central axis of the cylindrical member, and the plurality of LEDs are arranged toward the central axis of the cylindrical member so that the optical axis intersects the inner peripheral surface of the cylindrical member. It characterized the Rukoto.

Claims (4)

透光性を有する円筒部材と、
複数のＬＥＤと、
前記複数のＬＥＤに電力を供給する配線を有し、前記複数のＬＥＤが搭載される複数のベース部材と、を備え、
前記複数のベース部材は、互いに前記円筒部材の周方向にずれ、それぞれ前記円筒部材の中心軸に沿って前記円筒部材に直線状に配置され、
前記複数のＬＥＤは、前記円筒部材の中心軸に向けて配置されることを特徴とする直管型ＬＥＤ照明。 Cylindrical member with translucency and
With multiple LEDs
It has wiring for supplying electric power to the plurality of LEDs, and includes a plurality of base members on which the plurality of LEDs are mounted.
The plurality of base members are displaced from each other in the circumferential direction of the cylindrical member, and are respectively arranged linearly on the cylindrical member along the central axis of the cylindrical member.
The straight tube type LED lighting, wherein the plurality of LEDs are arranged toward the central axis of the cylindrical member. 前記複数のベース部材は、前記円筒部材の周方向において、等角度間隔を空けて配置されることを特徴とする請求項１に記載の直管型ＬＥＤ照明。 The straight tube type LED lighting according to claim 1, wherein the plurality of base members are arranged at equal angular intervals in the circumferential direction of the cylindrical member. 前記複数のベース部材は、２列の前記ベース部材のみを備えることを特徴とする請求項２に記載の直管型ＬＥＤ照明。 The straight tube type LED lighting according to claim 2, wherein the plurality of base members include only two rows of the base members. 前記複数のベース部材は、前記円筒部材の周方向において、異なる角度間隔を空けて配置されることを特徴とする請求項１に記載の直管型ＬＥＤ照明。 The straight tube type LED lighting according to claim 1, wherein the plurality of base members are arranged at different angular intervals in the circumferential direction of the cylindrical member.
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JP7236762B1 (en) 2021-10-06 2023-03-10 朝日エティック株式会社 Straight tube LED lighting
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