JP4329994B2 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
JP4329994B2
JP4329994B2 JP2003198125A JP2003198125A JP4329994B2 JP 4329994 B2 JP4329994 B2 JP 4329994B2 JP 2003198125 A JP2003198125 A JP 2003198125A JP 2003198125 A JP2003198125 A JP 2003198125A JP 4329994 B2 JP4329994 B2 JP 4329994B2
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Japan
Prior art keywords
light
stepped
stepped circular
cylindrical body
light source
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JP2003198125A
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Japanese (ja)
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JP2005038650A (en
Inventor
明彦 奥村
敏 中島
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Iris Ohyama Inc
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Iris Ohyama Inc
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Priority to JP2003198125A priority Critical patent/JP4329994B2/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/0824Ground spikes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、特定の光源から発せられた光を、その光量を減衰させることなく、垂直方向・水平方向における種々の角度に拡散させる照明装置に関するものである。
【0002】
【従来技術】
従来におけるこの種の照明装置としては、例えば、実開昭60−13757号公報に開示されているように、発光ダイオードを複数個列設してなるランプ基台を、上面の断面が略逆円錐状の透光性キャップにて閉蓋してなる発光ダイオードランプを構成し、発光ダイオードからの光を、透光性キャップの上面の逆円錐状部の表面により、その大部分をランプ側面方向に反射させるようにしたものがある。
【0003】
【特許文献1】
実開昭60−13757号公報
【0004】
【発明が解決しようとする課題】
しかしながら、このような従来における照明装置では、発光ダイオードからの光を、透光性キャップの上面の逆円錐状部の表面において反射させ、その大部分をランプ側面方向に直進させるだけであるので、反射した光が弱いものとなって十分な明るさを確保できないという弊害が生じていた。
【0005】
そこで、本発明は叙上のような従来存した諸事情に鑑み創出されたもので、特定の光源から発せられた光を、その光量を減衰させることなく、複数の段差状円形体に照射し、段差状円形体毎に種々の角度に光を効率良く拡散させて、十分な明るさ、輝き、眩しさを備えた照明装置を提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明に係る照明装置は、光源と、光源を覆う筒体とから成り、筒体の内部に、中央部に透光用の孔を設けた複数の透明な段差状円形体と、透光用の孔が存在しない段差状円形体とを直列方向に配置し、上段に位置する透光用の孔を設けた複数の透明な段差状円形体により、光源から発せられた直進性の光の一部が屈折し、当該段差状円形体の側方周囲に向けて光が拡散すると同時に、上段にある各段差状円形体の透光用の孔を透過した光は、下段に位置する透光用の孔が存在しない透明な段差状円形体により、直進性の光の一部が屈折し、当該段差状円形体の側方周囲に向けて光が拡散することで、上述した課題を解決した。
【0007】
また、筒体の周面に、複数のリング状突部を設けたことで、同じく上述した課題を解決した。
【0008】
さらに、筒体の内部に配置した段差状円形体は、裏側が円錐状にくり抜かれていることで、同じく上述した課題を解決した。
【0012】
この他、筒体の内部に配置した複数の段差状円形体と、透光用の孔が存在しない段差状円形体に、着色を施したことで、同じく上述した課題を解決した。
【0014】
さらに、筒体の内部に配置した段差状円形体の各段差部毎、また、透光用の孔が存在しない段差状円形体の各段差部毎に、それぞれ異なる着色を施したことで、同じく上述した課題を解決した。
【0015】
また、筒体を覆うカバー体を備え、カバー体は、周面に複数の縦長状突部を設けていることで、同じく上述した課題を解決した。
【0016】
加えて、縦長状突部は、上方から下方へ行くに従い、その高さを次第に低くし、また、幅を次第に狭くしていることで、同じく上述した課題を解決した。
【0017】
また、光源は、発光ダイオード(LED)であることで、同じく上述した課題を解決した。
【0018】
この他、光源は、周囲が暗い場合にのみ発光を可能とする光センサーを備えていることで、同じく上述した課題を解決した。
【0019】
以上のように構成された本発明に係る照明装置において、段差状円形体により、光源から発せられた直進性の光の一部が屈折し、段差状円形体の側方周囲に向けて光が拡散する。また、段差状円形体の中央部に設けた透光用の孔を通過した光は、その明るさ等の光量が減衰することなく、下方に配置している他の段差状円形体に照射される。さらに、筒体のリング状突部により、筒体の側方周囲に向けて、光が垂直方向に拡散する。
【0020】
一方、筒体を透過した光は、カバー体の周面に設けた縦長状突部により、カバー体の側方周囲に向けて光が水平方向に拡散する。これによって、光照射幅が広くなるため、見かけ上、光源が拡大したような状態に見える。
【0021】
【発明の実施の形態】
以下に、図面を参照して本発明の一実施の形態を説明する。発明に係る照明装置は、図1に示すように、光源1と、光源1を覆う筒体2と、筒体2を覆うカバー体3とから成る。
【0022】
筒体2は、図2に示すように、周面に複数のリング状突部4を設けている。また、筒体2の内部に、複数の段差状円形体5・50を備えている。この複数の段差状円形体5・50は、筒体2の内部において直列方向に配置されている。さらに、照明装置は、図1に示すように、筒体2の下方に、円錐状反射体6を備えている。
【0023】
筒体2の内部に配置する段差状円形体5・50は、中央部に透光用の孔7を設けたもの(5)と、このような孔7が存在しないもの(50)とがある。そして、図2・図3に示すように、筒体2の内部において、透光用の孔7を設けた2個の段差状円形体5と、透光用の孔7が存在しない段差状円形体50を直列方向に配置している。
【0024】
これらの段差状円形体5・50は、図2に示すように、小円・中円・大円…というように円形部分が積み重なって、略90度の段差部5A・50Aを複数備えている。これらの段差状円形体5・50は、裏側が円錐状にくり抜かれている。また、段差状円形体5・50は、最小円部分が光源1を向くように、筒体2の内部に固定されている。そして、段差状円形体5の孔7は、最小円部分の中央部に設けられている。これらの段差状円形体5・50は、透明に形成され、光源1からの光を透過させると共に、光を屈折させて、段差状円形体5・50の側方周囲に向けて光を拡散させている。
【0025】
一方、段差状円形体5・50に、同一色の着色を施しても良い。また、段差状円形体5・50に、例えば、赤、青、緑等の異なる色の着色を施しても良い。この他、段差状円形体5・50の各段差部5A・50A毎に、例えば、赤、青、緑、黄、紫等の着色を施しても良い。
【0026】
筒体2を覆うカバー体3は、図5に示すように、内周面に複数の縦長状突部8を設けている。筒体2とカバー体3は、透光性を備えた透明な材質であり、例えば、アクリル材等を用いて形成されている。尚、筒体2とカバー体3に、同一色や異なる色の着色を施しても良い。
【0027】
筒体2のリング状突部4は、図1・図2に示すように、筒体2の外周面において、断面が略楔形となるように形成されており、光源1が発する光を屈折させながら透過させ、光を垂直方向に拡散させている。このリング状突部4は、図1に示すように、筒体2の外周面から外側に向けて水平に延設された水平部分9と、水平部分9の先端から筒体2の外周面に向けて下方に延設された斜め下方部分10とから成る。また、筒体2は、図2に示すように、所定の間隔をおいてフラット部分11を備えている。尚、リング状突部4は、筒体2の外周面から外側に向けて水平に延設された水平部分と、水平部分の先端から筒体2の外周面に向けて上方に延設された斜め上方部分とから成るものであっても良い。また、これら2種類のリング状突部4を組み合わせても良い。
【0028】
この他、円錐状反射体6は、図1に示すように、段差状円形体5・50を備えた筒体2の下方(光源1から遠ざかる方向)に配置されている。また、円錐状反射体6は、円錐の頂点6Aが光源1を向くように、筒体2の下方に配置されている。さらに、円錐状反射体6の円錐面6Bには、例えば、金属の蒸着や塗布等による反射膜を形成している。よって、段差状円形体5・50を透過した光を円錐状反射体6の円錐面6Bにより反射し、円錐状反射体6の側方のあらゆる角度に光が拡散する。
【0029】
また、筒体2は、その基端部に板状の脚部12を設けてあり、この脚部12をネジ止めする等して、光源1を覆うように固定されている。さらに、段差状円形体5・50を備えている筒体2の内周面に、複数の直線状突部を縦方向に設けても良い。
【0030】
一方、筒体2を覆うカバー体3は、図5に示すように、内周面に複数の縦長状突部8を設けている。この縦長状突部8は、カバー体3の内周面において、縦方向に設けられている。また、縦長状突部8は、略三角形状に形成され、三角形の頂点8Aがカバー体3の内側を向くように配置されている。さらに、縦長状突部8は、上方から下方へ行くに従い、三角形の頂点8Aの高さを次第に低くし、また、三角形の幅を次第に狭くするように形成されている。加えて、縦長状突部8は、カバー体3の内周面の形状に合わせて若干湾曲している。この縦長状突部8は、筒体2を透過して垂直方向に拡散された光を、さらに透過させて水平方向に拡散させている。
【0031】
また、図1に示すように、カバー体3の先端部(円錐状反射体6の裏面)には、所定の深さにえぐれた接合穴14を設けている。そして、図1・図7に示すように、カバー体3の接合穴14に、筒状に形成された立設脚15の基端部13を嵌め込んでいる。この立設脚15は、先端部に剣状板材を十文字に交差させて成る尖鋭部16を備えている。そして、カバー体3の接合穴14に立設脚15の基端部13を嵌め込み、立設脚15の尖鋭部16を地面等に突き刺すことで、照明装置を所定の高さに設置している。
【0032】
光源1部分の具体的な構成としては、例えば、図1に示すように、ソーラーパネル17によって充電可能である電池18に接続しているソケット19に、発光ダイオード(LED)を取り付けている。また、発光ダイオード(LED)の点灯・消灯を制御するための回路基盤を備えている。さらに、光源1部分は、周囲が暗い場合にのみ発光を可能とするように、所定の光センサーを備えている。こうしてソーラーパネル17によって電池18に電力エネルギーを充電することで、一般的な有料の電力を使うことなく、光源1を発光させることができる。尚、光源1は、発光ダイオード(LED)に限定されることはなく、光を発することができれば、どのような構成のものであっても差し支えない。また、ソーラーパネル17による電力エネルギーを用いて光源1を発光させるものに限定されることはなく、一般的な有料の電力等を使うものであっても良い。
【0033】
次に、光源1から発せられた光の進行について詳述する。まず、図3・図4に示すように、上段に位置する透明な段差状円形体5により、光源1から発せられた直進性の光の一部が屈折し、段差状円形体5の側方周囲に向けて光が拡散する。また、図3に示すように、上段に位置する段差状円形体5の透光用の孔7を透過した光は、中段に位置する透明な段差状円形体5により、直進性の光の一部が屈折し、段差状円形体5の側方周囲に向けて光が拡散する。さらに、中段に位置する段差状円形体5の透光用の孔7を透過した光は、下段に位置する透明な段差状円形体50により、直進性の光の一部が屈折し、段差状円形体5の側方周囲に向けて光が拡散する。このとき、上段・中段に位置する段差状円形体5の透光用の孔7を透過した光は、その明るさ等の光量が減衰することはない。加えて、下段に位置する透光用の孔7が存在しない段差状円形体50を透過した光は、円錐状反射体6により、円錐状反射体6の側方周囲におけるあらゆる角度に光が拡散する。そして、筒体2のリング状突部4(9・10)により、筒体2の側方周囲に向けて、光が垂直方向に拡散する。
【0034】
一方、筒体2を透過した光は、カバー体3の内周面に設けた略三角形状の縦長状突部8により、図6(a)・(b)に示すように、カバー体3の側方周囲に向けて光が水平方向に拡散する。これによって、光照射幅が広くなるため、見かけ上、光源1が拡大したような状態に見える。
【0035】
尚、図5に示すカバー体3の縦長状突部8は、カバー体3の内周面に設けられているが、これに限定されることはなく、カバー体3の外周面に縦長状突部8を設けても良い。また、図5に示す縦長状突部8は、略三角形状に形成されているが、これに限定されることはなく、例えば、半円形・楕円形・台形・四角形等のどのような形状であっても良い。さらに、縦長状突部8の全体の高さを、同じにしても良い。
【0036】
【発明の効果】
以上のように構成された本発明に係る照明装置において、光源1から発せられた光が段差状円形体5の孔7を透過するに際し、光の明るさ等の光量が減衰することは全くなく、下方に配置している他の段差状円形体5に対し、十分な光量の光を照射できる。その結果、光源1から発せられた光が、直列方向に配置した複数の段差状円形体5に、光の明るさ等の光量が減衰することなく照射され、それぞれの段差状円形体5が垂直方向・水平方向における種々の角度に光を効率良く拡散させて、照明装置として十分な明るさ、輝き、眩しさを備えることができる。
【0037】
また、透光用の孔7を備えた段差状円形体5と、透光用の孔7が存在しない段差状円形体50を種々組み合わせることで、照明装置として、面白味のある明るさ、輝き、眩しさを備えることができる。
【0038】
さらに、透光用の孔7を備えた複数の段差状円形体5と、透光用の孔7が存在しない段差状円形体50に、着色を施したときは、照明装置として、奇麗で、面白味のある明るさ、輝き、眩しさを備えることができる。特に、段差状円形体5・50に異なる色の着色を施したときは、それぞれの段差状円形体5・50に照射されて拡散した光が互いに干渉し合い、見る角度によって色合いが異なったり、複雑な色合いが光に生じて、面白味のある照明装置を提供できる。
【0039】
加えて、透光用の孔7を備えた段差状円形体5の各段差部5A毎、また、透光用の孔7が存在しない段差状円形体50の各段差部50A毎に、それぞれ異なる着色を施したときも、照明装置として、奇麗で、面白味のある明るさ、輝き、眩しさを備えることができる。
【0040】
この他、筒体2に設けた複数のリング状突部4により、筒体2の側方周囲に向けて、光が垂直方向に拡散する。
【0041】
また、筒体2を透過した光は、カバー体3の周面に設けた複数の縦長状突部8により、カバー体3の側方周囲に向けて光が水平方向に拡散する。これによって、光照射幅が広くなるため、見かけ上、光源1が拡大したような状態に見える。
【0042】
このように、特定の光源1から発せられた光を、垂直方向・水平方向における種々の角度に拡散させることで、照明装置として十分な明るさを確保することができる。
【0043】
さらに、光源1は、発光ダイオード(LED)であるので、直進性を備えた光を、垂直方向・水平方向に拡散させ、これにより光量の減衰を防ぐことができる。
【0044】
加えて、光源1は、周囲が暗い場合にのみ発光を可能とする光センサーを備えているので、必要なときだけ光源1を点灯させて、消費電力の無駄を省いている。
【図面の簡単な説明】
【図1】本発明に係る照明装置の使用状態を示した一部拡大の断面図である。
【図2】複数の段差状円形体を備えた筒体の構成を示した一部切欠の斜視図である。
【図3】光源から発せられた光が複数の段差状円形体に照射されたときの光の進行例を示した説明図である。
【図4】光源から発せられた光が段差状円形体に照射されたときの光の進行例を示した説明図である。
【図5】カバー体が備えている縦長状突部の構成を示した概略斜視図である。
【図6】カバー体における光の進行例を示したもので、(a)は縦長状突部により屈折した光の透過状態を示した説明図、(b)は縦長状突部により反射した光の透過状態を示した説明図である。
【図7】カバー体の接合穴に、立設脚の基端部を嵌め込む状態を示した分解斜視図である。
【符号の説明】
1…光源 2…筒体
3…カバー体 4…リング状突部
5…段差状円形体 5A…段差部
50…段差状円形体 50A…段差部
6…円錐状反射体 6A…頂点
6B…円錐面 7…孔
8…縦長状突部 8A…頂点
9…水平部分 10…斜め下方部分
11…フラット部分 12…脚部
13…基端部 14…接合穴
15…立設脚 16…尖鋭部
17…ソーラーパネル 18…電池
19…ソケット
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an illuminating device that diffuses light emitted from a specific light source at various angles in the vertical and horizontal directions without attenuating the amount of light.
[0002]
[Prior art]
As a conventional illumination device of this type, for example, as disclosed in Japanese Utility Model Laid-Open No. 60-13757, a lamp base having a plurality of light emitting diodes arranged in a row has a substantially inverted conical cross section. The light-emitting diode lamp is configured by closing with a light-transmitting cap, and the light from the light-emitting diode is mostly directed toward the side of the lamp by the surface of the inverted conical portion on the upper surface of the light-transmitting cap. Some have been made to reflect.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 60-13757 [0004]
[Problems to be solved by the invention]
However, in such a conventional lighting device, the light from the light emitting diode is reflected on the surface of the inverted conical portion on the upper surface of the translucent cap, and most of the light is simply advanced straight in the lamp side surface direction. The reflected light has become weak and has a bad effect that sufficient brightness cannot be secured.
[0005]
Therefore, the present invention was created in view of the conventional circumstances as described above, and irradiates a plurality of stepped circular bodies with light emitted from a specific light source without attenuating the amount of light. An object of the present invention is to provide an illumination device having sufficient brightness, brightness, and glare by efficiently diffusing light at various angles for each stepped circular body.
[0006]
[Means for Solving the Problems]
An illumination device according to the present invention includes a light source and a cylindrical body that covers the light source, and a plurality of transparent stepped circular bodies that are provided with a hole for light transmission in a central portion inside the cylinder , and for light transmission A stepped circular body having no holes is arranged in a series direction, and a plurality of transparent stepped circular bodies provided with translucent holes located in the upper stage are used to transmit one of the straight-going light emitted from the light source. The part is refracted and the light diffuses toward the side periphery of the stepped circular body, and at the same time, the light transmitted through the light transmitting holes of each stepped circular body in the upper stage is for light transmission located in the lower stage Due to the transparent stepped circular body having no hole, a part of the straight traveling light is refracted, and the light diffuses toward the side periphery of the stepped circular body, thereby solving the above-described problem.
[0007]
Moreover, the problem mentioned above was similarly solved by providing the several ring-shaped projection part in the surrounding surface of the cylinder.
[0008]
Furthermore, the step-shaped circular body arranged inside the cylinder has solved the above-described problem by the concavity of the back side.
[0012]
In addition, the above-mentioned problems have been solved by coloring the stepped circular bodies arranged inside the cylindrical body and the stepped circular bodies having no holes for light transmission.
[0014]
Furthermore, each stepped portion of the stepped circular body arranged inside the cylindrical body and each stepped portion of the stepped circular body having no hole for light transmission are colored differently. Solved the above-mentioned problems.
[0015]
Moreover, the cover body which covers a cylindrical body was provided, and the cover body provided the some vertically long protrusion in the surrounding surface, and solved the subject mentioned above similarly.
[0016]
In addition, the vertically elongated protrusions are gradually reduced in height and gradually reduced in width from the upper side to the lower side, thereby solving the above-described problem.
[0017]
Moreover, the light source is a light emitting diode (LED), thereby solving the above-described problem.
[0018]
In addition, the light source has an optical sensor that can emit light only when the surroundings are dark, thereby solving the above-described problem.
[0019]
In the illumination device according to the present invention configured as described above, a part of the straight light emitted from the light source is refracted by the stepped circular body, and the light is directed toward the side periphery of the stepped circular body. Spread. In addition, the light that has passed through the hole for light transmission provided in the center of the stepped circular body is irradiated to other stepped circular bodies disposed below without attenuating the light quantity such as brightness. The Further, the light is diffused in the vertical direction toward the side periphery of the cylinder by the ring-shaped protrusion of the cylinder.
[0020]
On the other hand, the light transmitted through the cylindrical body is diffused in the horizontal direction toward the side periphery of the cover body by the vertically long protrusions provided on the peripheral surface of the cover body. As a result, the light irradiation width is widened, so that it appears that the light source is enlarged.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the lighting device according to the invention includes a light source 1, a cylindrical body 2 that covers the light source 1, and a cover body 3 that covers the cylindrical body 2.
[0022]
As shown in FIG. 2, the cylindrical body 2 is provided with a plurality of ring-shaped protrusions 4 on the peripheral surface. In addition, a plurality of stepped circular bodies 5 and 50 are provided inside the cylindrical body 2. The plurality of stepped circular bodies 5, 50 are arranged in the series direction inside the cylindrical body 2. Furthermore, as shown in FIG. 1, the lighting device includes a conical reflector 6 below the cylinder 2.
[0023]
The step-like circular bodies 5 and 50 arranged inside the cylindrical body 2 include those having a hole 7 for light transmission in the center (5) and those having no such hole 7 (50). . As shown in FIGS. 2 and 3, inside the cylindrical body 2, two stepped circular bodies 5 provided with light transmitting holes 7, and a stepped circle without the light transmitting holes 7. Forms 50 are arranged in series.
[0024]
As shown in FIG. 2, these step-like circular bodies 5 and 50 are provided with a plurality of step portions 5 </ b> A and 50 </ b> A of approximately 90 degrees, in which circular portions are stacked such as small circles, middle circles, large circles. . These step-like circular bodies 5 and 50 are hollowed out in a conical shape on the back side. Further, the step-like circular bodies 5 and 50 are fixed inside the cylindrical body 2 so that the minimum circular portion faces the light source 1. And the hole 7 of the step-shaped circular body 5 is provided in the center part of the minimum circle part. These step-like circular bodies 5 and 50 are formed to be transparent and transmit light from the light source 1 and refract the light to diffuse the light toward the sides of the step-like circular bodies 5 and 50. ing.
[0025]
On the other hand, the stepped circular bodies 5 and 50 may be colored with the same color. Further, the stepped circular bodies 5 and 50 may be colored with different colors such as red, blue, and green. In addition, the stepped circular bodies 5 and 50 may be colored, for example, red, blue, green, yellow, and purple for each stepped portion 5A and 50A.
[0026]
As shown in FIG. 5, the cover body 3 covering the cylindrical body 2 is provided with a plurality of vertically long protrusions 8 on the inner peripheral surface. The cylindrical body 2 and the cover body 3 are transparent materials having translucency, and are formed using, for example, an acrylic material. The cylindrical body 2 and the cover body 3 may be colored with the same color or different colors.
[0027]
As shown in FIGS. 1 and 2, the ring-shaped protrusion 4 of the cylindrical body 2 is formed on the outer peripheral surface of the cylindrical body 2 so as to have a substantially wedge-shaped cross section, and refracts the light emitted from the light source 1. While transmitting, the light is diffused in the vertical direction. As shown in FIG. 1, the ring-shaped protrusion 4 includes a horizontal portion 9 extending horizontally from the outer peripheral surface of the cylindrical body 2 toward the outside, and a tip of the horizontal portion 9 to the outer peripheral surface of the cylindrical body 2. And an obliquely lower portion 10 extending downward. Moreover, the cylinder 2 is provided with the flat part 11 at predetermined intervals, as shown in FIG. The ring-shaped protrusion 4 extends horizontally from the outer peripheral surface of the cylindrical body 2 toward the outside, and extends upward from the tip of the horizontal portion toward the outer peripheral surface of the cylindrical body 2. It may consist of a diagonally upper part. Further, these two types of ring-shaped protrusions 4 may be combined.
[0028]
In addition, as shown in FIG. 1, the conical reflector 6 is disposed below the cylindrical body 2 including the step-shaped circular bodies 5 and 50 (in a direction away from the light source 1). Further, the conical reflector 6 is disposed below the cylindrical body 2 so that the apex 6A of the cone faces the light source 1. Furthermore, a reflective film is formed on the conical surface 6B of the conical reflector 6 by, for example, vapor deposition or coating of metal. Therefore, the light transmitted through the stepped circular bodies 5 and 50 is reflected by the conical surface 6B of the conical reflector 6, and the light diffuses at all angles to the side of the conical reflector 6.
[0029]
Further, the cylindrical body 2 is provided with a plate-like leg portion 12 at a base end portion thereof, and is fixed so as to cover the light source 1 by screwing the leg portion 12 or the like. Further, a plurality of linear protrusions may be provided in the vertical direction on the inner peripheral surface of the cylindrical body 2 provided with the stepped circular bodies 5 and 50.
[0030]
On the other hand, as shown in FIG. 5, the cover body 3 covering the cylindrical body 2 is provided with a plurality of vertically long protrusions 8 on the inner peripheral surface. The vertically long protrusions 8 are provided in the vertical direction on the inner peripheral surface of the cover body 3. Further, the vertically long protrusions 8 are formed in a substantially triangular shape, and are arranged so that the apex 8 </ b> A of the triangle faces the inside of the cover body 3. Further, the vertically long protrusions 8 are formed such that the height of the apex 8A of the triangle is gradually lowered and the width of the triangle is gradually narrowed from the top to the bottom. In addition, the vertically long protrusion 8 is slightly curved in accordance with the shape of the inner peripheral surface of the cover body 3. The vertically long projections 8 further transmit light diffused in the vertical direction through the cylindrical body 2 and diffused in the horizontal direction.
[0031]
Further, as shown in FIG. 1, a joint hole 14 is provided at a front end portion of the cover body 3 (the back surface of the conical reflector 6) to a predetermined depth. As shown in FIGS. 1 and 7, the base end portion 13 of the standing leg 15 formed in a cylindrical shape is fitted into the joint hole 14 of the cover body 3. The standing leg 15 is provided with a sharp portion 16 formed by crossing a sword-like plate material in a cross shape at the tip. Then, the lighting device is installed at a predetermined height by fitting the proximal end portion 13 of the standing leg 15 into the joint hole 14 of the cover body 3 and piercing the pointed portion 16 of the standing leg 15 into the ground or the like. .
[0032]
As a specific configuration of the light source 1 portion, for example, as shown in FIG. 1, a light emitting diode (LED) is attached to a socket 19 connected to a battery 18 that can be charged by a solar panel 17. In addition, a circuit board for controlling turning on / off of the light emitting diode (LED) is provided. Further, the light source 1 portion is provided with a predetermined optical sensor so that light can be emitted only when the surroundings are dark. In this way, by charging the battery 18 with electric energy by the solar panel 17, the light source 1 can be made to emit light without using general charged electric power. The light source 1 is not limited to a light emitting diode (LED), and may have any configuration as long as it can emit light. Moreover, it is not limited to what makes the light source 1 light-emit using the electric power energy by the solar panel 17, You may use general paid electric power etc.
[0033]
Next, the progress of the light emitted from the light source 1 will be described in detail. First, as shown in FIGS. 3 and 4, a part of the straight light emitted from the light source 1 is refracted by the transparent stepped circular body 5 located in the upper stage, and the side of the stepped circular body 5 is refracted. Light diffuses toward the surroundings. Further, as shown in FIG. 3, the light transmitted through the light transmitting hole 7 of the stepped circular body 5 located in the upper stage is transmitted by the transparent stepped circular body 5 positioned in the middle stage. The portion is refracted and light diffuses toward the side periphery of the stepped circular body 5. Further, the light transmitted through the light transmitting hole 7 of the stepped circular body 5 located in the middle stage is refracted by a part of the straight light by the transparent stepped circular body 50 located in the lower stage, so that the stepped shape. Light diffuses toward the side periphery of the circular body 5. At this time, the amount of light such as the brightness of the light transmitted through the light transmitting hole 7 of the stepped circular body 5 positioned in the upper and middle stages is not attenuated. In addition, the light transmitted through the stepped circular body 50 having no translucent hole 7 located in the lower stage is diffused by the conical reflector 6 at every angle around the side of the conical reflector 6. To do. Then, light is diffused in the vertical direction toward the side periphery of the cylindrical body 2 by the ring-shaped protrusions 4 (9, 10) of the cylindrical body 2.
[0034]
On the other hand, the light transmitted through the cylindrical body 2 is caused to reach the cover body 3 as shown in FIGS. 6 (a) and 6 (b) by the substantially triangular vertical protrusions 8 provided on the inner peripheral surface of the cover body 3. Light diffuses horizontally toward the sides. As a result, the light irradiation width is widened, so that the light source 1 appears to be enlarged.
[0035]
5 is provided on the inner peripheral surface of the cover body 3, but the present invention is not limited to this, and the vertical protrusion 8 is formed on the outer peripheral surface of the cover body 3. The part 8 may be provided. Further, the vertically long protrusion 8 shown in FIG. 5 is formed in a substantially triangular shape, but is not limited to this, for example, in any shape such as a semicircle, an ellipse, a trapezoid, a quadrangle, etc. There may be. Furthermore, the overall height of the vertically long protrusions 8 may be the same.
[0036]
【The invention's effect】
In the illuminating device according to the present invention configured as described above, when the light emitted from the light source 1 passes through the hole 7 of the stepped circular body 5, the light quantity such as the brightness of the light is not attenuated at all. A sufficient amount of light can be irradiated to the other stepped circular bodies 5 arranged below. As a result, the light emitted from the light source 1 is irradiated to the plurality of stepped circular bodies 5 arranged in the series direction without attenuating the amount of light such as the brightness of the light, and each stepped circular body 5 is vertical. Light can be efficiently diffused at various angles in the direction and the horizontal direction to provide sufficient brightness, brightness, and glare as a lighting device.
[0037]
Further, by combining the stepped circular body 5 provided with the light transmitting hole 7 and the stepped circular body 50 having no light transmitting hole 7 in various combinations, the lighting device has interesting brightness, brightness, It can be dazzling.
[0038]
Furthermore, when the plurality of stepped circular bodies 5 provided with the light transmitting holes 7 and the stepped circular body 50 having no light transmitting holes 7 are colored, the illumination device is beautiful, It can have interesting brightness, shine, and glare. In particular, when the stepped circular bodies 5 and 50 are colored with different colors, the diffused light irradiated to the respective stepped circular bodies 5 and 50 interfere with each other, and the hues differ depending on the viewing angle, Intricate shades are generated in light, and an interesting lighting device can be provided.
[0039]
In addition, each stepped portion 5A of the stepped circular body 5 provided with the light transmitting hole 7 is different from each stepped portion 50A of the stepped circular body 50 where the light transmitting hole 7 does not exist. Even when coloring is performed, the lighting device can be provided with beautiful, interesting brightness, brightness, and glare.
[0040]
In addition, light is diffused in the vertical direction toward the side periphery of the cylindrical body 2 by the plurality of ring-shaped protrusions 4 provided on the cylindrical body 2.
[0041]
Further, the light transmitted through the cylindrical body 2 is diffused in the horizontal direction toward the side periphery of the cover body 3 by the plurality of vertically long protrusions 8 provided on the peripheral surface of the cover body 3. As a result, the light irradiation width is widened, so that the light source 1 appears to be enlarged.
[0042]
Thus, by diffusing the light emitted from the specific light source 1 at various angles in the vertical direction and the horizontal direction, sufficient brightness as the lighting device can be ensured.
[0043]
Furthermore, since the light source 1 is a light emitting diode (LED), light having a straight traveling property can be diffused in the vertical direction and the horizontal direction, thereby preventing the light quantity from being attenuated.
[0044]
In addition, since the light source 1 includes an optical sensor that can emit light only when the surroundings are dark, the light source 1 is turned on only when necessary to save power consumption.
[Brief description of the drawings]
FIG. 1 is a partially enlarged cross-sectional view showing a use state of a lighting device according to the present invention.
FIG. 2 is a partially cutaway perspective view showing a configuration of a cylindrical body having a plurality of stepped circular bodies.
FIG. 3 is an explanatory diagram showing an example of the progress of light when light emitted from a light source is applied to a plurality of stepped circular bodies.
FIG. 4 is an explanatory diagram showing an example of the progress of light when light emitted from a light source is applied to a stepped circular body.
FIG. 5 is a schematic perspective view showing a configuration of a vertically long protrusion provided in the cover body.
6A and 6B show an example of light traveling in a cover body, in which FIG. 6A is an explanatory diagram showing a transmission state of light refracted by a vertically long protrusion, and FIG. 6B is a light reflected by the vertically long protrusion. It is explanatory drawing which showed the permeation | transmission state.
FIG. 7 is an exploded perspective view showing a state in which the base end portion of the standing leg is fitted into the joint hole of the cover body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Light source 2 ... Cylindrical body 3 ... Cover body 4 ... Ring-shaped protrusion 5 ... Stepped circular body 5A ... Stepped part 50 ... Stepped circular body 50A ... Stepped part 6 ... Conical reflector 6A ... Vertex 6B ... Conical surface 7 ... hole 8 ... vertical projection 8A ... vertex 9 ... horizontal part 10 ... diagonal lower part 11 ... flat part 12 ... leg part 13 ... base end part 14 ... joint hole 15 ... standing leg 16 ... pointed part 17 ... solar Panel 18 ... Battery 19 ... Socket

Claims (9)

光源と、光源を覆う筒体とから成り、筒体の内部に、中央部に透光用の孔を設けた複数の透明な段差状円形体と、透光用の孔が存在しない段差状円形体とを直列方向に配置し、上段に位置する透光用の孔を設けた複数の透明な段差状円形体により、光源から発せられた直進性の光の一部が屈折し、当該段差状円形体の側方周囲に向けて光が拡散すると同時に、上段にある各段差状円形体の透光用の孔を透過した光は、下段に位置する透光用の孔が存在しない透明な段差状円形体により、直進性の光の一部が屈折し、当該段差状円形体の側方周囲に向けて光が拡散することを特徴とする照明装置。A plurality of transparent stepped circular bodies, each having a light source and a cylindrical body covering the light source, provided with a translucent hole in the center, and a stepped circle without a translucent hole A plurality of transparent stepped circular bodies, which are arranged in series with the shape and provided with holes for light transmission located in the upper stage, refract part of the straight light emitted from the light source, and the stepped shape At the same time as the light diffuses toward the sides of the circular body, the light transmitted through the light transmitting holes of each stepped circular body on the upper stage is a transparent step that does not have the light transmitting holes located on the lower stage. An illuminating device characterized in that a part of straight light is refracted by the circular body, and the light diffuses toward the side periphery of the stepped circular body. 筒体の周面に、複数のリング状突部を設けた請求項1に記載の照明装置。  The lighting device according to claim 1, wherein a plurality of ring-shaped protrusions are provided on a peripheral surface of the cylindrical body. 筒体の内部に配置した段差状円形体は、裏側が円錐状にくり抜かれている請求項1または2に記載の照明装置。  The illumination device according to claim 1 or 2, wherein the stepped circular body disposed inside the cylindrical body has a back side cut out in a conical shape. 筒体の内部に配置した複数の段差状円形体と、透光用の孔が存在しない段差状円形体に、着色を施した請求項1乃至3のいずれかに記載の照明装置。The lighting device according to any one of claims 1 to 3 , wherein a plurality of stepped circular bodies arranged inside the cylindrical body and a stepped circular body having no light transmitting hole are colored. 筒体の内部に配置した段差状円形体の各段差部毎、また、透光用の孔が存在しない段差状円形体の各段差部毎に、それぞれ異なる着色を施した請求項1乃至4のいずれかに記載の照明装置。5. The method according to claim 1 , wherein each stepped portion of the stepped circular body arranged inside the cylindrical body is colored differently, and each stepped portion of the stepped circular body having no light transmitting hole is colored differently. The lighting apparatus in any one. 筒体を覆うカバー体を備え、カバー体は、周面に複数の縦長状突部を設けている請求項1乃至5のいずれかに記載の照明装置。The lighting device according to claim 1 , further comprising a cover body that covers the cylindrical body, wherein the cover body includes a plurality of vertically long protrusions on a peripheral surface. 縦長状突部は、上方から下方へ行くに従い、その高さを次第に低くし、また、幅を次第に狭くしている請求項6に記載の照明装置。The lighting device according to claim 6 , wherein the vertically long protrusion gradually decreases in height and gradually decreases in width from the upper side to the lower side. 光源は、発光ダイオード(LED)である請求項1乃至7のいずれかに記載の照明装置。The illumination device according to claim 1 , wherein the light source is a light emitting diode (LED). 光源は、周囲が暗い場合にのみ発光を可能とする光センサーを備えている請求項1乃至8のいずれかに記載の照明装置。The lighting device according to claim 1 , wherein the light source includes an optical sensor that can emit light only when the surrounding is dark.
JP2003198125A 2003-07-16 2003-07-16 Lighting device Expired - Fee Related JP4329994B2 (en)

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US8098433B2 (en) * 2009-12-11 2012-01-17 Solatube International, Inc. Direct and indirect light diffusing devices and methods
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