JP4269223B2 - lighting equipment - Google Patents

lighting equipment Download PDF

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JP4269223B2
JP4269223B2 JP2003338318A JP2003338318A JP4269223B2 JP 4269223 B2 JP4269223 B2 JP 4269223B2 JP 2003338318 A JP2003338318 A JP 2003338318A JP 2003338318 A JP2003338318 A JP 2003338318A JP 4269223 B2 JP4269223 B2 JP 4269223B2
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light
light emitting
control body
substrate
light source
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JP2005104224A (en
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恵一 清水
桂輔 小野
真弓 宇佐美
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Toshiba Lighting and Technology Corp
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Description

光源からのグレアを低減するようにした照明器具に関する。   The present invention relates to a lighting apparatus that reduces glare from a light source.

従来、光源からのグレアを低減するようにした照明器具においては、ルーバーを設けて光源からの直接光を遮光し、または、乳白板などの拡散透過性材料を透過させて輝度を低減させることを行っている。   Conventionally, in a luminaire designed to reduce glare from a light source, a louver is provided to block direct light from the light source, or a diffuse transmissive material such as a milk plate is transmitted to reduce brightness. Is going.

例えば、図８に示すような車両用照明器具は、照度を必要とする照射方向に応じて、ランプＬの光の出射を制御するものである（特許文献１）。この種の照明器具は、器具本体22と、この器具本体22に装着されるランプＬと、ランプＬを囲繞するカバー体41とを備える。カバー体41は、低透過率部61を全体的に設けるとともに、照度を必要とする照射方向に対応して高透過率部62a，62b，62cを設けている。したがって、ランプＬの光が高透過率部62a，62b，62cを透過し、照度を必要とする照射方向、例えば車内の広告面や読書面を効果的に照射することができる。また、ランプＬの光を低透過率部61で遮光し、例えば車内の器具設置側とは反対側の座席の乗客などへ強い光が照射されるのを防止することができるというものである。
特開平６−１３９８０５号公報（第２頁、図１） For example, a vehicular lighting fixture as shown in FIG. 8 controls the emission of light from the lamp L in accordance with an irradiation direction that requires illuminance (Patent Document 1). This type of lighting fixture includes a fixture main body 22, a lamp L attached to the fixture main body 22, and a cover body 41 surrounding the lamp L. The cover body 41 is provided with a low transmittance portion 61 as a whole, and is provided with high transmittance portions 62a, 62b, and 62c corresponding to the irradiation direction that requires illuminance. Therefore, the light of the lamp L is transmitted through the high transmittance portions 62a, 62b, and 62c, and the irradiation direction that requires illuminance, for example, the advertising surface and the reading surface in the vehicle can be effectively irradiated. Further, the light of the lamp L is shielded by the low-transmittance portion 61, and for example, strong light can be prevented from being irradiated to passengers in the seat on the side opposite to the appliance installation side in the vehicle.
JP-A-6-139805 (second page, FIG. 1)

しかしながら、従来の照明器具のように、ルーバーを設けた場合、少なくともルーバーの羽根の長さに相当する分、照明器具の厚さが大きくなり、航空機、自動車または列車などの客室空間を圧迫する。また、乳白板では器具効率が低下し、所要の照度を得ようとした場合に設備容量を大きくする必要が生じ、初期投資、運用費用ともに増大する。また、いずれの場合においてもグレア低減のための手段が寸法的に大きいので、客室の座席からみた場合に見かけ上の照明器具の面積が大きく、客室インテリアデザインの支障となっていた。   However, when a louver is provided as in a conventional luminaire, the thickness of the luminaire is increased by at least the length corresponding to the length of the louver blade, and the cabin space of an aircraft, automobile, train, or the like is compressed. In addition, the efficiency of the milk white plate decreases, and it is necessary to increase the equipment capacity when trying to obtain the required illuminance, which increases both initial investment and operation costs. Further, in any case, since the means for reducing glare is large in size, the area of the apparent lighting fixture is large when viewed from the seat of the guest room, which hinders the interior design of the guest room.

一方、光源を発光ダイオード（ＬＥＤ）とした場合には、ＬＥＤ素子単体は比較的小容量（＝光量が少ない）であること、点光源に近く輝度が高いことが特徴であり、複数個を配列して多数個を集合的に用いて所要の照明を実施することになる。この場合、高輝度の光源が線状や面状に配列されることになり、従来の光源以上にグレア低減対応が重要となる。   On the other hand, when the light source is a light emitting diode (LED), the LED element itself is characterized by a relatively small capacity (= low amount of light) and high brightness close to a point light source. As a result, the required illumination is performed using a large number. In this case, the high-intensity light sources are arranged in a line or a plane, and the glare reduction countermeasure is more important than the conventional light sources.

本発明は、客室空間等においてＬＥＤ等を光源とした照明器具を使用した場合において、グレアを低減した照明器具を提供することを目的とする。   An object of this invention is to provide the lighting fixture which reduced the glare in the case of using the lighting fixture which used LED etc. as the light source in cabin space.

請求項１に記載の発明は、点状光源が配設された基板および光源を取り囲むように配設された制光体を含む発光装置で構成された照明器具において、前記制光体には、前記基板の実装面に接触するように形成された接触部、前記点状光源を収容する収容空間部および前記収容空間部と前記接触部の外側とを連通する切欠部が形成され、この切欠部には、前記点状光源のはんだ部分を位置させてなり、前記発光装置を線状に複数配列した場合、前記制光体の配光角は、線状に並べた方向と直交方向において略同一となるようにしたことを特徴とする。 The invention described in claim 1 is a lighting fixture including a light emitting device including a substrate on which a point light source is disposed and a light controlling body disposed so as to surround the light source . A contact portion formed so as to be in contact with the mounting surface of the substrate, an accommodation space portion that accommodates the point light source, and a notch portion that communicates the accommodation space portion with the outside of the contact portion are formed. In the case where a plurality of the light emitting devices are arranged linearly, the light distribution angle of the light control body is substantially the same in the direction orthogonal to the direction of the linear arrangement. It is characterized by that.

請求項２に記載の発明は、請求項１記載の照明器具において、前記制光体は、光束の大部分を作業面に到達させる形状であるとともに、側方に出射する光を抑制する形状であることを特徴とする。   According to a second aspect of the present invention, in the luminaire according to the first aspect, the light control body has a shape that causes most of the light flux to reach the work surface and a shape that suppresses light emitted to the side. It is characterized by being.

請求項３に記載の発明は、請求項１または２記載の照明器具において、前記発光装置を線状に複数配列する方向は、航空機、自動車または列車において座席が並んでいる前後方向であって、荷棚の下に１列または複数列配列されることを特徴とする。   The invention according to claim 3 is the lighting fixture according to claim 1 or 2, wherein the direction in which the light emitting devices are arranged in a plurality of lines is a front-rear direction in which seats are lined up in an aircraft, an automobile, or a train, One row or a plurality of rows are arranged under the load shelf.

請求項４に記載の発明は、請求項３記載の照明器具において、前記座席は、背もたれを後方に倒すことのできるリクライニングシートであり、遮光角を約６０度としたことを特徴とする。   According to a fourth aspect of the present invention, there is provided the lighting apparatus according to the third aspect, wherein the seat is a reclining seat capable of tilting a backrest backward, and a light shielding angle is set to about 60 degrees.

請求項１記載の発明によれば、点状光源の発する光束のうち作業面に対する割合を増やすことが可能であり、より効率の高い照明設備を提供できる。また、照明器具の小形化が可能であり、インテリアデザインの自由度を増すことができる。また、制光体の長手および直交方向の配光が略同一なので、設計が容易であり高い効率の照明器具を実現できる。また、接触部には、接触部の内側の収納空間部と接触部の外側とを連通する切欠部が設けられているため、光源の発熱による収納空間部内の熱気を切欠部を通じて外部に排気して光源の温度上昇を抑制でき、光源をより長寿命化できる。さらにまた、切欠部には点状光源のはんだ部分を位置させているので、制光体を小形にできる。 According to invention of Claim 1, it is possible to increase the ratio with respect to a work surface among the light beams which a point light source emits, and a more efficient illumination installation can be provided. In addition, the size of the lighting fixture can be reduced, and the degree of freedom in interior design can be increased. Moreover, since the light distribution in the longitudinal direction and the orthogonal direction of the light control body is substantially the same, the design is easy and a highly efficient lighting apparatus can be realized. In addition, since the contact portion is provided with a cutout portion that communicates the storage space portion inside the contact portion with the outside of the contact portion, the hot air in the storage space portion due to heat generated by the light source is exhausted to the outside through the cutout portion. Thus, the temperature rise of the light source can be suppressed, and the life of the light source can be extended. Furthermore, since the solder portion of the point light source is located in the notch, the light control body can be made small.

請求項２の発明によれば、照明率が高く、所要照度に対して少ない消費電力の照明設備を実現できるとともに、グレアが少なく良好な視環境を提供できる。   According to the second aspect of the present invention, it is possible to realize an illumination facility having a high illumination rate and low power consumption with respect to the required illuminance, and can provide a favorable visual environment with less glare.

請求項３の発明によれば、客室空間の座席の前後方向に線状に発光装置を配列しているので、座席が配列された客室に対して、効率が高くかつ視環境としても良好な照明を実現できる。   According to the invention of claim 3, since the light emitting devices are arranged linearly in the front-rear direction of the seats in the passenger compartment space, the lighting in which the seats are arranged has high efficiency and good visual environment. Can be realized.

請求項４の発明によれば、座席の背もたれを後方に倒した場合でもグレアを防止できる。   According to the invention of claim 4, glare can be prevented even when the seat back is tilted backward.

以下、本発明の一実施の形態の照明器具を図面を参照して説明する。図１は、本発明の一実施の形態を示す列車の一部横断面、図２は、同じく縦断面図である。図において、本照明器具Ａは、航空機、自動車または列車等の客室空間に設置されるものであり、本実施の形態では、列車Ｂの座席Ｂ１が並んでいる前後方向に客室空間の荷棚Ｂ２の下に２列に配列される。   Hereinafter, a lighting apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional view of a train showing an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view. In the figure, the present lighting device A is installed in a cabin space such as an aircraft, an automobile, or a train. In the present embodiment, a luggage rack B2 in the cabin space in the front-rear direction where the seats B1 of the train B are arranged. Are arranged in two columns below.

本照明器具Ａは、点状光源としての発光ダイオード12が配設された基板13および発光ダイオード12を取り囲むように配設された制光体21としてのレンズ21を含む発光装置11で構成されており、発光装置11を線状に複数配列した場合、レンズ21の配光角A1,A2は、線状に並べた方向と直交方向において略同一となるようにしている。   The luminaire A includes a light emitting device 11 including a substrate 13 on which a light emitting diode 12 as a point light source is disposed and a lens 21 as a light control body 21 disposed so as to surround the light emitting diode 12. When a plurality of light emitting devices 11 are arranged in a line, the light distribution angles A1 and A2 of the lens 21 are made substantially the same in the direction orthogonal to the direction arranged in a line.

レンズ21は、光束の大部分を作業面に到達させる形状であるとともに、側方に出射する光を抑制する形状である。また、列車Bの座席Ｂ１は、背もたれを後方に倒すことのできるリクライニングシートであり、照明器具Ａの遮光角を約６０度としている。   The lens 21 has a shape that allows most of the light flux to reach the work surface and a shape that suppresses light emitted to the side. The seat B1 of the train B is a reclining seat that can tilt the backrest backward, and the light-shielding angle of the lighting fixture A is about 60 degrees.

次に、図３ないし図７に照明器具Ａを示し、図３は発光装置の説明図、図４は発光装置の断面図、図５は発光装置の平面図、図６は発光装置の断面図、図７は発光装置の発光素子と切欠部との位置関係を示す説明図である。   Next, FIG. 3 to FIG. 7 show the lighting fixture A, FIG. 3 is an explanatory view of the light emitting device, FIG. 4 is a sectional view of the light emitting device, FIG. 5 is a plan view of the light emitting device, and FIG. FIG. 7 is an explanatory view showing the positional relationship between the light emitting element and the notch of the light emitting device.

図において、11は発光装置で、この発光装置11は、発光素子として固体発光素子である複数の発光ダイオード12を１列状に間隔をあけて配列した発光モジュールとして構成されている。発光装置11は、例えばプラスチックなどの絶縁性を有する長方形板状の基板13を有し、この基板13の一面が実装面14であり、この実装面14には発光ダイオード12が接続される配線回路が形成されている。発光ダイオード12は、チップ状で、長手方向の両端にアノードおよびカソードの電極15をそれぞれ有するとともにこれら両端の電極15間の中央に光を発光する発光部16を有し、両端の電極15の端面がはんだ17によって基板13の配線回路に電気的および機械的に接続されている。発光部16から垂直に光を出射する方向を光軸Ｘとし、この光軸Ｘを中心とする所定角度範囲が発光部16から発光した光が向かう発光範囲αとしている。基板13に実装される発光ダイオード12は、アノードとカソードの両端の電極15を結ぶ長手方向が隣り合う発光ダイオード12同士で９０°ずつ異なり、配光特性が均一化するように配列されている。発光ダイオードの発光色は、照明用として白色が用いられるが、他の単色の色や、複数色を用いてもよい。   In the figure, reference numeral 11 denotes a light emitting device, and the light emitting device 11 is configured as a light emitting module in which a plurality of light emitting diodes 12 which are solid light emitting elements are arranged as a light emitting element at intervals in a row. The light-emitting device 11 has a rectangular plate-like substrate 13 having insulating properties such as plastic, for example, and one surface of the substrate 13 is a mounting surface 14, and the mounting surface 14 is a wiring circuit to which the light-emitting diode 12 is connected. Is formed. The light emitting diode 12 has a chip shape, and has anode and cathode electrodes 15 at both ends in the longitudinal direction, and a light emitting portion 16 that emits light at the center between the electrodes 15 at both ends. Is electrically and mechanically connected to the wiring circuit of the substrate 13 by solder 17. A direction in which light is emitted vertically from the light emitting unit 16 is an optical axis X, and a predetermined angular range centered on the optical axis X is a light emitting range α to which light emitted from the light emitting unit 16 is directed. The light emitting diodes 12 mounted on the substrate 13 are arranged so that the longitudinal direction connecting the electrodes 15 at both ends of the anode and the cathode differs by 90 ° between the adjacent light emitting diodes 12, and the light distribution characteristics are made uniform. As the luminescent color of the light emitting diode, white is used for illumination, but other single color or a plurality of colors may be used.

また、基板13の実装面14側には、発光ダイオード12から発光した光を制光して配光を制御する制光体21が配設されている。この制光体（レンズ）21は、導光性を有する透明な樹脂製またはガラス製で一体に形成され、各発光ダイオード12の配列に対応して複数の制光部（レンズ部）22が１列状に形成されている。各制光部22には、基板13の実装面14に接触する正方形枠状の接触部23が形成され、この接触部23の内側に発光ダイオード12を収容する直方体状の収容空間部24が形成され、この収容空間部24に臨む内面に発光ダイオード12から発光した光が入射する入射面25が形成され、四角形枠状の接触部23の周囲の各辺から表面側へ向けて拡開し入射面から入射した光を表面側へ全反射させる４面の反射面26が形成され、表面側には入射面25から入射した直接光および反射面26で反射した反射光を表面側へ出射させる正方形の出射面27が形成されている。入射面25は、発光ダイオード12から発光した光が向かう発光範囲αの全域にわたって設けられている。各制光部22は出射面27側が連なって１列状に一体に形成され、その列方向と交差する両側にフランジ部28が形成されている。   Further, a light control body 21 that controls light distribution by controlling light emitted from the light emitting diode 12 is disposed on the mounting surface 14 side of the substrate 13. The light control body (lens) 21 is integrally formed of a transparent resin or glass having a light guide property, and a plurality of light control parts (lens parts) 22 correspond to the arrangement of the light emitting diodes 12. It is formed in a row. Each light control portion 22 is formed with a square frame-shaped contact portion 23 that contacts the mounting surface 14 of the substrate 13, and a rectangular parallelepiped-shaped accommodation space portion 24 that accommodates the light emitting diode 12 is formed inside the contact portion 23. An incident surface 25 on which light emitted from the light emitting diode 12 is incident is formed on the inner surface facing the accommodating space 24, and is expanded and incident from the respective sides around the rectangular frame-shaped contact portion 23 toward the surface side. Four reflecting surfaces 26 that totally reflect light incident from the surface to the surface side are formed, and a square that emits direct light incident from the incident surface 25 and reflected light reflected by the reflecting surface 26 to the surface side is formed on the surface side. The emission surface 27 is formed. The incident surface 25 is provided over the entire emission range α to which the light emitted from the light emitting diode 12 travels. Each light control portion 22 is integrally formed in a row with the emission surface 27 side connected, and flange portions 28 are formed on both sides intersecting the row direction.

接触部23を構成する四方の壁面のうち、発光ダイオード12の両端の電極15の方向に対応する２方向の壁面で、発光ダイオード12から発光した光が向かう発光範囲α外の領域に、接触部23の内側の収納空間部24と接触部23の外側とを連通する切欠部29が形成されている。   Of the four wall surfaces constituting the contact portion 23, the contact portion is located in a region outside the light emission range α to which light emitted from the light emitting diode 12 is directed on two wall surfaces corresponding to the directions of the electrodes 15 at both ends of the light emitting diode 12. A cutout portion 29 is formed to communicate the storage space portion 24 inside 23 and the outside of the contact portion 23.

図５に示すように、切欠部29の基板13からの高さは、発光ダイオード12から発光した光が向かう発光範囲α外の領域で、発光ダイオード12の基板13からの高さよりも高くし、切欠部29の開口量を大きくし、通気性つまり放熱性を向上させている。また、基板13と制光体21とを位置決め固定するとともに基板13の熱を放熱させる放熱ケース31を備えている。この放熱ケース31は、基板13より放熱性を有する例えばアルミニウムなどの金属製や樹脂製などで一体形成され、基板13の実装面14と反対の他方の面の全域に接触する長方形板状の基部32、この基部32の長手方向と交差する両側から突出して制光体21の両側に沿って係合しこの制光体21を介して基板13を基部32に押し付けて密着させる係合部33を有し、断面略コ字形で基板13および制光体21の長手方向の寸法と略同一に形成されている。両側の係合部33は、基板13の両側および制光体21の両側のフランジ部28を挟み込むことで基板13の実装面14に平行な方向に基板13と制光体21とを位置決め保持し、さらに、両側の係合部33の先端に制光体21の両側のフランジ部28の表面側つまり出射面27の有効領域の両外側に係合する爪部34が形成されている。   As shown in FIG. 5, the height of the notch 29 from the substrate 13 is higher than the height of the light emitting diode 12 from the substrate 13 in a region outside the light emission range α to which the light emitted from the light emitting diode 12 travels. The opening of the notch 29 is increased to improve air permeability, that is, heat dissipation. Further, a heat radiating case 31 for positioning and fixing the substrate 13 and the light control body 21 and radiating the heat of the substrate 13 is provided. This heat radiating case 31 is integrally formed of, for example, a metal such as aluminum or resin, which has a heat radiating property from the substrate 13, and is a rectangular plate-shaped base that contacts the entire area of the other surface opposite to the mounting surface 14 of the substrate 13. 32, an engaging portion 33 which protrudes from both sides intersecting the longitudinal direction of the base portion 32 and engages along both sides of the light control body 21 and presses the substrate 13 against the base portion 32 through the light control body 21 And has a substantially U-shaped cross section and is formed to have substantially the same dimensions as the substrate 13 and the light control body 21 in the longitudinal direction. The engaging portions 33 on both sides sandwich and hold the flange portions 28 on both sides of the substrate 13 and both sides of the light control body 21, thereby positioning and holding the substrate 13 and the light control body 21 in a direction parallel to the mounting surface 14 of the substrate 13. Further, claw portions 34 that engage with the front surface side of the flange portion 28 on both sides of the light control body 21, that is, both outer sides of the effective area of the emission surface 27, are formed at the tips of the engagement portions 33 on both sides.

そして、発光ダイオード12の点灯時には、発光部16から発光した光を発光範囲α内へ出射し、この発光範囲α内へ出射した全ての光が制光体21の入射面25に到達し、制光体21内に入射する。制光体21内に入射した光は、直接光として出射面27から光軸Ｘ方向へ直接出射し、または反射面26で反射して反射光として出射面27から光軸Ｘ方向へ出射する。   When the light emitting diode 12 is turned on, the light emitted from the light emitting unit 16 is emitted into the light emission range α, and all the light emitted into the light emission range α reaches the incident surface 25 of the light control body 21 to be controlled. Incident into the light body 21. The light incident on the light control body 21 is directly emitted from the emission surface 27 in the optical axis X direction as direct light, or is reflected by the reflection surface 26 and emitted from the emission surface 27 in the optical axis X direction as reflected light.

このように、発光ダイオード12から発光範囲αの全域へ向かう全ての光が制光体21の入射面25に入射し、すなわち発光ダイオード12から発光した光がこの発光ダイオード12を収容する制光体21の収容空間部24に臨む入射面25に入射し、入射した光が制光体21の出射面27から出射するため、発光ダイオード12から発光した光の利用効率を高め、明るさを向上できる。そのため、従来に比べて、所望の明るさが低電力消費で実現でき、発光ダイオード12の発熱量を低減でき、長寿命化できる。   In this way, all the light traveling from the light emitting diode 12 to the entire light emitting range α is incident on the incident surface 25 of the light control body 21, that is, the light control body in which the light emitted from the light emitting diode 12 accommodates the light emitting diode 12. Since the incident light is incident on the incident surface 25 facing the accommodating space 24 of 21 and is emitted from the emission surface 27 of the light control body 21, the utilization efficiency of the light emitted from the light emitting diode 12 can be improved and the brightness can be improved. . Therefore, compared to the conventional case, desired brightness can be achieved with low power consumption, the amount of heat generated by the light emitting diode 12 can be reduced, and the life can be extended.

また、制光体21の接触部23には、発光ダイオード12から発光した光が向かう発光範囲α外に、接触部23の内側の収納空間部24と接触部23の外側とを連通する切欠部29を設けたため、発光ダイオード12の発熱による収納空間部24内の熱気を切欠部29を通じて外部に排気でき、発光ダイオード12の温度上昇を抑制できる。そのため、発光ダイオード12の温度上昇を抑制できることにより、上述した発光ダイオード12の発熱量を低減できることとの相乗効果により、発光ダイオード12をより長寿命化できる。   Further, the contact portion 23 of the light control body 21 has a cutout portion that communicates the storage space portion 24 inside the contact portion 23 and the outside of the contact portion 23 outside the light emission range α to which the light emitted from the light emitting diode 12 is directed. Since 29 is provided, the hot air in the storage space 24 due to the heat generated by the light emitting diode 12 can be exhausted to the outside through the notch 29, and the temperature rise of the light emitting diode 12 can be suppressed. Therefore, since the temperature rise of the light emitting diode 12 can be suppressed, the light emitting diode 12 can have a longer life due to a synergistic effect with the above-described reduction in the amount of heat generated by the light emitting diode 12.

また、制光体の切欠部29を、基板12にはんだ17で接続される発光ダイオード12の両端方向に対応して設けたため、切欠部29内に発光ダイオード12のはんだ17の部分を位置させることができ、発光ダイオード12のはんだ17による基板13への実装が可能で、制光体21を小形にできる。   Further, since the notch portion 29 of the light control body is provided corresponding to both ends of the light emitting diode 12 connected to the substrate 12 with the solder 17, the portion of the solder 17 of the light emitting diode 12 is positioned in the notch portion 29. The light-emitting diode 12 can be mounted on the substrate 13 with the solder 17, and the light control body 21 can be made small.

また、放熱ケース31によって基板13と制光体21とを位置決め保持するため、別のねじなどの締結部品を使用することがなく、部品点数を削減し、組立性を向上でき、小形に構成できる。さらに、放熱ケース31の係合部33を制光体21に係合し、この制光体21を介して基板13を放熱ケース31の基部32に密着させることができ、発光ダイオード12から基板13に伝わった熱を放熱ケース31に効率よく伝達でき、放熱性を向上でき、発光ダイオード12を長寿命化できる。しかも、放熱ケース31の係合部33が制光体21の長手方向に沿って設けられているため、制光体21を長手方向に均一に押えることができ、基板13と放熱ケース31の基部32との密着性を高めることができる。   In addition, since the substrate 13 and the light control body 21 are positioned and held by the heat radiating case 31, it is possible to reduce the number of parts, improve the assemblability, and reduce the size without using other fastening parts such as screws. . Further, the engaging portion 33 of the heat radiating case 31 is engaged with the light control body 21, and the substrate 13 can be brought into close contact with the base portion 32 of the heat radiating case 31 via the light control body 21, and the light emitting diode 12 to the substrate 13 The heat transferred to can be efficiently transferred to the heat radiating case 31, heat dissipation can be improved, and the life of the light emitting diode 12 can be extended. Moreover, since the engaging portion 33 of the heat dissipation case 31 is provided along the longitudinal direction of the light control body 21, the light control body 21 can be uniformly pressed in the longitudinal direction, and the base portion of the substrate 13 and the heat dissipation case 31 Adhesion with 32 can be improved.

本発明の一実施の形態を示す列車の一部横断面。The partial cross section of the train which shows one embodiment of this invention. 同じく縦断面。Similarly vertical section. 発光装置の説明図。Explanatory drawing of a light-emitting device. 発光装置の断面図。Sectional drawing of a light-emitting device. 発光装置の平面図。The top view of a light-emitting device. 発光装置の断面図。Sectional drawing of a light-emitting device. 発光装置の発光素子と切欠部との位置関係を示す説明図。Explanatory drawing which shows the positional relationship of the light emitting element and notch part of a light-emitting device. 従来の車両用照明器具の断面図。Sectional drawing of the conventional vehicle lighting fixture.

符号の説明Explanation of symbols

Ａ…照明器具、Ａ１，Ａ２…配光角、Ｂ…列車、11…発光装置。   A ... lighting fixture, A1, A2 ... light distribution angle, B ... train, 11 ... light emitting device.

Claims (4)

点状光源が配設された基板および光源を取り囲むように配設された制光体を含む発光装置で構成された照明器具において、前記制光体には、前記基板の実装面に接触するように形成された接触部、前記点状光源を収容する収容空間部および前記収容空間部と前記接触部の外側とを連通する切欠部が形成され、この切欠部には、前記点状光源のはんだ部分を位置させてなり、前記発光装置を線状に複数配列した場合、前記制光体の配光角は、線状に並べた方向と直交方向において略同一となるようにしたことを特徴とする照明器具。 In a lighting fixture including a light emitting device including a substrate on which a point light source is disposed and a light control body disposed so as to surround the light source, the light control body is in contact with a mounting surface of the substrate. A contact space formed in the housing, a housing space for housing the point light source, and a notch for communicating the housing space with the outside of the contact portion. The notch includes a solder for the point light source. When a plurality of the light emitting devices are arranged linearly, the light distribution angle of the light control body is substantially the same in the direction orthogonal to the direction of the linear arrangement. Lighting equipment to do. 前記制光体は、光束の大部分を作業面に到達させる形状であるとともに、側方に出射する光を抑制する形状であることを特徴とする請求項１記載の照明器具。   The lighting fixture according to claim 1, wherein the light control body has a shape that allows most of the light beam to reach the work surface and that suppresses light emitted to the side. 前記発光装置を線状に複数配列する方向は、航空機、自動車または列車において座席が並んでいる前後方向であって、荷棚の下に１列または複数列配列されることを特徴とする請求項１または２記載の照明器具。   The direction in which the light emitting devices are arranged in a plurality of lines is a front-rear direction in which seats are lined up in an aircraft, an automobile, or a train, and is arranged in one or more rows under a load shelf. The lighting fixture of 1 or 2. 前記座席は、背もたれを後方に倒すことのできるリクライニングシートであり、遮光角を約６０度としたことを特徴とする請求項３記載の照明器具。   The lighting device according to claim 3, wherein the seat is a reclining seat whose backrest can be tilted backwards, and has a light shielding angle of about 60 degrees.
JP2003338318A 2003-09-29 2003-09-29 lighting equipment Expired - Fee Related JP4269223B2 (en)

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