JP6979871B2 - Light emitting device for lighting - Google Patents

Light emitting device for lighting Download PDF

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JP6979871B2
JP6979871B2 JP2017249291A JP2017249291A JP6979871B2 JP 6979871 B2 JP6979871 B2 JP 6979871B2 JP 2017249291 A JP2017249291 A JP 2017249291A JP 2017249291 A JP2017249291 A JP 2017249291A JP 6979871 B2 JP6979871 B2 JP 6979871B2
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light emitting
unit
lighting
reflecting
emitting source
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JP2019114508A (en
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旭彦 程原
勝司 廣瀬
常男 志村
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Citizen Electronics Co Ltd
Citizen Watch Co Ltd
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Citizen Watch Co Ltd
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Description

本発明は、スタジアム、劇場等における照明装置のように、目標位置を明るく照明するための照明装置に使用する照明用発光装置に関する。 The present invention relates to a light emitting device for lighting used as a lighting device for brightly illuminating a target position, such as a lighting device in a stadium, a theater, or the like.

目標位置を正確かつより明るく照明するためには、点状の光源を準備し、レンズや反射鏡を組合せて照明用発光装置を構成することが行われている。しかしながら、このような照明用発光装置は、構造が複雑であり、重量が増してしまう。そこで、構造を簡単にするため、多数の発光素子を基板上に実装した平面又は線状の照明用発光装置が使われることがある。このような照明用発光装置は、平面方向(上方)に多くの光を照射することから、平面方向を目標位置に向けて照明する。このとき、発光素子は、その側面方向にも光を放射するため、指向性を向上させるのに凹凸のある板状の反射板を用いることが多い。 In order to illuminate the target position accurately and brighter, a point-shaped light source is prepared, and a lens and a reflector are combined to form a light emitting device for illumination. However, such a light emitting device for lighting has a complicated structure and increases the weight. Therefore, in order to simplify the structure, a flat or linear lighting light emitting device in which a large number of light emitting elements are mounted on a substrate may be used. Since such a light emitting device for illumination irradiates a large amount of light in the plane direction (upward), the light emitting device illuminates the target position in the plane direction. At this time, since the light emitting element also radiates light in the side surface direction thereof, a plate-shaped reflector having irregularities is often used to improve the directivity.

例えば、特許文献1には、アルミベース基板に絞り加工を加えて窪みを形成し、その窪みの底部にLEDを配置し、底部に連なる側壁部をテーパー状の反射面とすることで、LEDの側面から放射される光を平面方向へ反射するLED光源が提案されている。 For example, in Patent Document 1, an aluminum base substrate is drawn to form a recess, an LED is arranged at the bottom of the recess, and a side wall portion connected to the bottom is used as a tapered reflective surface. An LED light source that reflects light radiated from a side surface in a plane direction has been proposed.

また、特許文献2には、平板状の反射シートに曲げ加工を施して傾斜面部を形成し、反射シートの裏面側から発光素子が実装されたフレキシブル基板を接着し、そのフレキシブル基板上の発光素子が反射シートに設けられた貫通孔から露出するようにして、発光素子から横方向に出た光を平面方向へ反射するようにした発光装置が提案されている。 Further, in Patent Document 2, a flat plate-shaped reflective sheet is bent to form an inclined surface portion, and a flexible substrate on which a light emitting element is mounted is adhered from the back surface side of the reflective sheet, and the light emitting element on the flexible substrate is adhered. There has been proposed a light emitting device in which light emitted from a light emitting element in a lateral direction is reflected in a plane direction by exposing the light from a through hole provided in the reflective sheet.

特開平10−308536号公報Japanese Unexamined Patent Publication No. 10-308536 特開2016−162829号公報Japanese Unexamined Patent Publication No. 2016-162829

しかしながら、上記LED光源及び発光装置では、観客や競技者が発光素子を直視してしまう場合がある。 However, in the LED light source and the light emitting device, the spectator or the athlete may directly look at the light emitting element.

本発明が解決しようとする課題は、上記従来技術の問題点を解決し、簡単な構造でありながら、光源を直視させずに高い輝度で指向性を確保することが可能な照明用発光装置を提供することにある。 The problem to be solved by the present invention is to solve the above-mentioned problems of the prior art, and to provide a light emitting device for lighting which can secure directivity with high brightness without directly looking at a light source while having a simple structure. To provide.

本発明の照明用発光装置は、塑性変形可能な基材と、その表面に固着された回路基板とからなるユニット基板と、前記ユニット基板上に実装された発光源と、を備え、前記ユニット基板は、前記発光源に隣接する位置に、前記発光源からの光を設定方向へ反射する反射部を有し、前記反射部が、前記ユニット基板の一側部の板面及びユニット基板に設けられた切り込みによって仕切られた板面を折曲起立することにより形成されている。
The light emitting device for lighting of the present invention includes a unit substrate composed of a plastically deformable base material, a circuit board fixed to the surface thereof, and a light emitting source mounted on the unit substrate. Has a reflecting portion that reflects light from the light emitting source in a set direction at a position adjacent to the light emitting source, and the reflecting portion is provided on a plate surface and a unit substrate on one side of the unit substrate. It is formed by bending and standing up the plate surface partitioned by the notch.

本発明の照明用発光装置では、発光源に隣接する位置に、ユニット基板の板面から折曲起立する反射部を設けて、発光源からの光を設定方向へ反射させているので、ユニット基板や発光源に影響を及ぼすことなく反射部の折曲だけで容易に照射方向を設定することができる。これにより、発光源の横方向等に照射された光を、反射部により容易に設定方向へ反射することができる。その結果、高輝度で指向性を向上させることができ、簡単な構造で観客や競技者が発光源からの光を直視することを防ぐことができる。 In the light emitting device for lighting of the present invention, a reflecting portion that bends and stands up from the plate surface of the unit substrate is provided at a position adjacent to the light emitting source to reflect the light from the light emitting source in the set direction. The irradiation direction can be easily set only by bending the reflecting portion without affecting the light emitting source. As a result, the light emitted in the lateral direction of the light emitting source can be easily reflected in the set direction by the reflecting unit. As a result, it is possible to improve the directivity with high brightness, and it is possible to prevent the spectator and the athlete from directly looking at the light from the light emitting source with a simple structure.

本発明の一実施形態に係る照明用発光装置を示す斜視図である。It is a perspective view which shows the light emitting device for lighting which concerns on one Embodiment of this invention. 図1に示す照明用発光装置の要部拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part of the light emitting device for lighting shown in FIG. 図1に示す照明用発光装置の平面図である。It is a top view of the light emitting device for lighting shown in FIG. 図1に示す照明用発光装置の側面図である。It is a side view of the light emitting device for lighting shown in FIG. 図1に示す照明用発光装置における反射部を折曲起立させる前の状態を示す平面図である。FIG. 3 is a plan view showing a state before bending and standing up a reflecting portion in the light emitting device for lighting shown in FIG. 1. 図5に示す照明用発光装置の側面図である。It is a side view of the light emitting device for lighting shown in FIG. 図1に示す照明用発光装置を設置したときの光の照射状態を示す側面図である。It is a side view which shows the irradiation state of the light when the light emitting device for illumination shown in FIG. 1 is installed.

以下、本発明に係る照明用発光装置の実施形態を図面に基づいて詳細に説明する。なお、図面は、本発明の照明用発光装置を模式的に表したものである。これらの実物の寸法および寸法比は、図面上の寸法および寸法比と必ずしも一致していない。また、重複説明は適宜省略させることがあり、同一部材には同一符号を付与することがある。さらに、本発明の技術的範囲は以下で説明する実施の形態には限定されず、特許請求の範囲に記載された発明とその均等物に及ぶ点に留意されたい。 Hereinafter, embodiments of the light emitting device for lighting according to the present invention will be described in detail with reference to the drawings. It should be noted that the drawing schematically shows the light emitting device for lighting of the present invention. The dimensions and dimensional ratios of these physical objects do not always match the dimensions and dimensional ratios on the drawings. Further, the duplicate description may be omitted as appropriate, and the same member may be given the same reference numeral. Further, it should be noted that the technical scope of the present invention is not limited to the embodiments described below, but extends to the inventions described in the claims and their equivalents.

本実施形態における照明用発光装置1は、図1乃至図4に示すように、ユニット基板2と、ユニット基板2上に実装された発光源3とを備えている。 As shown in FIGS. 1 to 4, the lighting light emitting device 1 in the present embodiment includes a unit substrate 2 and a light emitting source 3 mounted on the unit substrate 2.

ユニット基板2は、金属板等の塑性変形可能な基材4と、その表面に接着剤等により固着されたフレキシブル回路基板等の回路基板5とから構成されている。このユニット基板2には、発光源3に隣接する位置に、板面から折曲起立する反射部2a,2bが設けられている。ユニット基板2は、図5及び図6に示すように、平面形状が矩形をなし、その表面には2つ一組で線状に並ぶ発光源3が等間隔で3列並び、この発光源3の列の間とユニット基板2の端部に反射部2a,2bが設けられている。この反射部2a,2bは、発光源3の側面に沿って設けられた折曲部2c,2dと、この折曲部2c,2dから立ち上がり発光源3からの光を反射する板状部2e,2fをそれぞれ有している。折曲部2c,2dは、図2に示すように、幅を広めに設定して円弧形状に湾曲させることで、高い強度を確保している。また、折曲部2c,2dをより折り曲げ易くするため、折曲部2c,2dの略中央位置にユニット基板2を貫通する孔2gを設けている。 The unit substrate 2 is composed of a plastically deformable base material 4 such as a metal plate and a circuit board 5 such as a flexible circuit board fixed to the surface thereof with an adhesive or the like. The unit substrate 2 is provided with reflective portions 2a and 2b that are bent and erected from the plate surface at positions adjacent to the light emitting source 3. As shown in FIGS. 5 and 6, the unit substrate 2 has a rectangular planar shape, and two sets of light emitting sources 3 arranged linearly are arranged in three rows at equal intervals on the surface thereof, and the light emitting sources 3 are arranged in three rows at equal intervals. Reflecting portions 2a and 2b are provided between the rows and at the end of the unit substrate 2. The reflecting portions 2a and 2b are a bent portion 2c and 2d provided along the side surface of the light emitting source 3, and a plate-shaped portion 2e that rises from the bent portions 2c and 2d and reflects the light from the light emitting source 3. Each has 2f. As shown in FIG. 2, the bent portions 2c and 2d are set to have a wide width and are curved into an arc shape to ensure high strength. Further, in order to make the bent portions 2c and 2d easier to bend, a hole 2g penetrating the unit substrate 2 is provided at a substantially central position of the bent portions 2c and 2d.

反射部2aは、ユニット基板2に設けられた切り込み6により、反射部2aの発光源3側に位置する折曲部2cを除く板状部2eの外形に沿って仕切られることで形成されている。また、反射部2bは、反射部2bの発光源3側に位置する折曲部2dに向かってユニット基板2の側面から設けられた切り込み7により、ユニット基板2の端部が仕切られることで形成されている。また、反射部2a,2bは、2つ一組で線状に並ぶ発光源3に対応するように細長い矩形状をなし、発光源3の長手方向に沿って配置されている。 The reflecting portion 2a is formed by being partitioned by a notch 6 provided in the unit substrate 2 along the outer shape of the plate-shaped portion 2e excluding the bent portion 2c located on the light emitting source 3 side of the reflecting portion 2a. .. Further, the reflective portion 2b is formed by partitioning the end portion of the unit substrate 2 by a notch 7 provided from the side surface of the unit substrate 2 toward the bent portion 2d located on the light emitting source 3 side of the reflective portion 2b. Has been done. Further, the reflecting portions 2a and 2b form an elongated rectangular shape so as to correspond to the light emitting source 3 arranged linearly in pairs, and are arranged along the longitudinal direction of the light emitting source 3.

また、回路基板5は、図2に示すように、少なくとも折曲部2c,2dに対応した位置に、基材4の表面4aが露出する貫通孔5aを有している。このため、折曲部2c,2dを折曲するときに回路基板5の割れ等を防ぐことができる。また、この回路基板5には、その表面に光を反射する白色系のレジスト層8が形成されている。 Further, as shown in FIG. 2, the circuit board 5 has a through hole 5a in which the surface 4a of the base material 4 is exposed at a position corresponding to at least the bent portions 2c and 2d. Therefore, it is possible to prevent the circuit board 5 from cracking when the bent portions 2c and 2d are bent. Further, a white resist layer 8 that reflects light is formed on the surface of the circuit board 5.

発光源3は、本実施形態では、複数の発光ダイオード素子9を、基板10と枠体11からなる細長いパッケージに収めた後、封止樹脂12で封止したCOBパッケージからなる。このCOBパッケージからなる細長い発光源3は、前述したように、ユニット基板2の所定の位置に、2つ一組でその長手方向に線状に並べられると共に所定の間隔をあけて3列に並べられて実装されている。 In the present embodiment, the light emitting source 3 is composed of a COB package in which a plurality of light emitting diode elements 9 are housed in an elongated package composed of a substrate 10 and a frame body 11 and then sealed with a sealing resin 12. As described above, the elongated light emitting sources 3 made of this COB package are arranged in pairs at predetermined positions on the unit substrate 2 in a line in the longitudinal direction thereof, and are arranged in three rows at predetermined intervals. Has been implemented.

上記構成からなる照明用発光装置1は、反射部2a,2bの板状部2e,2fをユニット基板2の板面から起立させるように、折曲部2c,2dを折曲させることで形成される。本実施形態における反射部2a,2bは、その板状部2e,2fがユニット基板2の板面に対して略90度の角度をなすように起立している。この照明用発光装置1をスタジアムの照明として設置する場合、図7に示すように、発光源3の上面をグランドの目標位置Tに向けるようにユニット基板2を設置する。 The lighting light emitting device 1 having the above configuration is formed by bending the bent portions 2c and 2d so that the plate-shaped portions 2e and 2f of the reflecting portions 2a and 2b stand up from the plate surface of the unit substrate 2. To. The reflective portions 2a and 2b in the present embodiment are erected so that the plate-shaped portions 2e and 2f form an angle of approximately 90 degrees with respect to the plate surface of the unit substrate 2. When the light emitting device 1 for lighting is installed as lighting for a stadium, as shown in FIG. 7, the unit substrate 2 is installed so that the upper surface of the light emitting source 3 faces the target position T of the ground.

発光源3が照射する光は、ほぼ発光源3の上方へ照射されて目標位置Tを照明するが、発光源3の側方あるいは斜め上方等の横方向へ広がって照射された照射光Lは、グランドを囲む観客席へ向かうことになり、照射光Lが観客の目に届くことで客がまぶしく感じることになる。本実施形態における照明用発光装置1では、照射光Lが反射部2a,2bによって反射されることで、観客が発光源3からの光を直視することがなくなる。また、反射部2a,2bによって反射された光は、目標位置Tに向かって照射されることになり、目標位置Tを照射する輝度を高めることになる。なお、反射部2a,2bの板状部2e,2fの表面には、白色系のレジスト層8が設けられているため、反射部2a,2bで光を拡散しながら反射することになる。 The light emitted by the light emitting source 3 is irradiated substantially above the light emitting source 3 to illuminate the target position T, but the irradiation light L emitted laterally such as laterally or diagonally above the light emitting source 3 is emitted. , The audience will be heading to the audience seats surrounding the ground, and the irradiation light L will reach the audience's eyes, and the audience will feel dazzling. In the lighting light emitting device 1 of the present embodiment, the irradiation light L is reflected by the reflecting portions 2a and 2b, so that the spectator does not directly look at the light from the light emitting source 3. Further, the light reflected by the reflecting portions 2a and 2b is irradiated toward the target position T, and the brightness of irradiating the target position T is increased. Since the white resist layer 8 is provided on the surfaces of the plate-shaped portions 2e and 2f of the reflecting portions 2a and 2b, the reflecting portions 2a and 2b reflect the light while diffusing it.

反射部2a,2bがユニット基板2の板面から起立する角度は、設置場所、客席の位置等に応じて容易に調節することが可能である。また、反射部2a,2bの板状部2e,2fにレジスト層8や回路基板5を設けずに、金属製の基材4をむき出しにして、鏡面又は拡散反射面にすることも可能である。 The angle at which the reflecting portions 2a and 2b stand up from the plate surface of the unit substrate 2 can be easily adjusted according to the installation location, the position of the audience seats, and the like. Further, it is also possible to expose the metal base material 4 to form a mirror surface or a diffuse reflection surface without providing the resist layer 8 or the circuit board 5 on the plate-shaped portions 2e and 2f of the reflection portions 2a and 2b. ..

また、本実施形態における反射部2a,2bは、線状に並ぶ2つの発光源3に対して一つの反射部2a,2bがそれぞれ対応するように設けられているが、個々の発光源3に対してそれぞれ一つずつ反射部が対応するように変更することも可能である。例えば、反射部2a,2bの板状部2e,2fを、折曲部2c,2dを分断する孔2gの位置に合せて略中央で分割することで、個々の発光源3に反射部2a,2bを個々に対応させることができる。また、発光源3の個数や配置あるいはそれに対応する反射部2a,2bの数に関しては、設置場所の状況に応じて任意に変更可能である。 Further, the reflecting portions 2a and 2b in the present embodiment are provided so that one reflecting portion 2a and 2b correspond to two light emitting sources 3 arranged in a line, respectively, but each light emitting source 3 has a reflecting portion 2a and 2b. On the other hand, it is also possible to change so that one reflection unit corresponds to each other. For example, by dividing the plate-shaped portions 2e and 2f of the reflecting portions 2a and 2b at substantially the center according to the positions of the holes 2g that divide the bent portions 2c and 2d, the reflecting portions 2a and 2a can be divided into individual light emitting sources 3. 2b can be individually associated. Further, the number and arrangement of the light emitting sources 3 or the number of the reflecting portions 2a and 2b corresponding thereto can be arbitrarily changed according to the situation of the installation location.

1 照明用発光装置
2 ユニット基板
2a,2b 反射部
2c,2d 折曲部
2e,2f 板状部
2g 孔
3 発光源
4 基材
4a 基材の表面
5 回路基板
5a 貫通孔
6,7 切り込み
8 レジスト層
9 発光ダイオード素子
10 基板
11 枠体
12 封止樹脂
L 照射光
T 目標位置
1 Light emitting device for lighting 2 Unit board 2a, 2b Reflecting part 2c, 2d Folded part 2e, 2f Plate-shaped part 2g Hole 3 Light emitting source 4 Base material 4a Base material surface 5 Circuit board 5a Through hole 6, 7 Notch 8 Resist Layer 9 Light emitting diode element 10 Substrate 11 Frame 12 Encapsulating resin L Irradiation light T Target position

Claims (8)

塑性変形可能な基材と、その表面に固着された回路基板とからなるユニット基板と、
前記ユニット基板上に実装された発光源と、
を備え、
前記ユニット基板は、前記発光源に隣接する位置に、前記発光源からの光を設定方向へ反射する反射部を有し、
前記反射部が、前記ユニット基板の一側部の板面及びユニット基板に設けられた切り込みによって仕切られた板面を折曲起立することにより形成されている照明用発光装置。
A unit board consisting of a plastically deformable base material and a circuit board fixed to the surface thereof,
The light emitting source mounted on the unit board and
Equipped with
The unit substrate has a reflecting portion that reflects light from the light emitting source in a set direction at a position adjacent to the light emitting source.
The reflective portion, the unit-side plate surface and bent upright lighting light emitting device that is formed by a plate surface partitioned by notches provided in the unit substrate of the substrate.
塑性変形可能な基材と、その表面に固着された回路基板とからなるユニット基板と、
前記ユニット基板上に実装された発光源と、
を備え、
前記ユニット基板は、前記発光源に隣接する位置に、前記発光源からの光を設定方向へ反射する反射部を有し、
前記発光源は、複数の発光ダイオード素子を細長いパッケージ内に収めたCOBパッケージからなり、
前記反射部は、前記ユニット基板の板面を折曲起立することにより形成され、前記発光源の長手方向に沿って配置されている照明用発光装置。
A unit board consisting of a plastically deformable base material and a circuit board fixed to the surface thereof,
The light emitting source mounted on the unit board and
Equipped with
The unit substrate has a reflecting portion that reflects light from the light emitting source in a set direction at a position adjacent to the light emitting source.
The light emitting source consists of a COB package in which a plurality of light emitting diode elements are housed in an elongated package.
The reflective portion, the unit formed by the plate surface of the substrate to stand bending, the light emitting source arranged to have that lighting for the light emitting device along the longitudinal direction of.
前記反射部は、前記ユニット基板の一側部の板面及びユニット基板に設けられた切り込みによって仕切られた板面を折曲起立することにより形成されている請求項に記載の照明用発光装置。 The light emitting device for lighting according to claim 2 , wherein the reflecting portion is formed by bending and standing a plate surface on one side of the unit substrate and a plate surface partitioned by a notch provided in the unit substrate. .. 前記反射部は、前記発光源の側面に沿って設けられた折曲部と、この折曲部から立ち上がり前記発光源からの光を反射する板状部とを有する請求項1乃至3のいずれか一つに記載の照明用発光装置。 The reflecting portion is any one of claims 1 to 3 having a bent portion provided along the side surface of the light emitting source and a plate-shaped portion rising from the bent portion and reflecting the light from the light emitting source. The light emitting device for lighting described in one. 前記回路基板は、少なくとも前記反射部における折曲部に対応した位置に、前記塑性変形可能な基材の表面が露出する貫通孔を有する請求項に記載の照明用発光装置。 The light emitting device for lighting according to claim 4 , wherein the circuit board has a through hole in which the surface of the plastically deformable base material is exposed at least at a position corresponding to a bent portion in the reflective portion. 前記回路基板は、その表面に光を反射するレジスト層を有する請求項1乃至5のいずれか一つに記載の照明用発光装置。 The light emitting device for lighting according to any one of claims 1 to 5, wherein the circuit board has a resist layer that reflects light on its surface. 前記発光源は、前記ユニット基板上に複数実装され、前記反射部は、前記発光源にそれぞれ対応するように複数設けられている請求項1乃至6のいずれか一つに記載の照明用発光素子。 The lighting light emitting element according to any one of claims 1 to 6, wherein a plurality of the light emitting sources are mounted on the unit substrate, and a plurality of the reflecting portions are provided so as to correspond to the light emitting sources. .. 前記発光源は、前記ユニット基板上に複数実装され、前記反射部は、複数の前記発光源に対して一つの反射部が対応するように設けられている請求項1乃至6のいずれか一つに記載の照明用発光素子。 A plurality of the light emitting sources are mounted on the unit substrate, and the reflecting unit is any one of claims 1 to 6 provided so that one reflecting unit corresponds to the plurality of the light emitting sources. The light emitting element for illumination according to the above.
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