JP3799565B2 - Fluorescent lamp fixtures - Google Patents

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JP3799565B2
JP3799565B2 JP3225899A JP3225899A JP3799565B2 JP 3799565 B2 JP3799565 B2 JP 3799565B2 JP 3225899 A JP3225899 A JP 3225899A JP 3225899 A JP3225899 A JP 3225899A JP 3799565 B2 JP3799565 B2 JP 3799565B2
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straight side
straight
respect
length
fluorescent tube
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JP2000208283A (en
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繁美 堀田
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長谷川 和憲
福田 五郎
広沢 勝
繁美 堀田
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Description

【0001】
【発明の属する技術分野】
本発明は二灯直列逐次始動形の蛍光灯器具に関し、特に二灯直列逐次始動形において簡単かつ確実に一灯のみを点灯させて省電力を図ることのできるようにした器具に関する。
【0002】
【従来の技術】
オフィス、店舗、工場等では天井に多数の照明器具を取付けて室内全体を照明することがよく行われているが、照明器具には蛍光灯器具、例えば二灯用蛍光灯器具がよく用いられている。
【0003】
かかる二灯用蛍光灯器具には並列式と直列式とがあるが、性能及び価格の点で優れている直列式が普及しているのが実情である。
【0004】
最近、省エネルギーが叫ばれ、照明器具に関しても一灯を消灯して省電力を図ることが要望されている。
【0005】
【発明が解決しようとする課題】
しかしながら、従来の直列式の二灯用蛍光灯器具では、一灯を外すと、残りの一灯も消灯してしまう。これに対処するためには蛍光灯器具のカバーを開いて安定器を並列点灯方式の安定器に取り換える必要があり、取り換え作業が煩雑であるばかりでなく、コスト高を招来し、更には素人には簡単に取り換えることができないという問題がある。
【0006】
本発明は、かかる問題点に鑑み、素人には簡単に取り扱うことができ、一灯を消灯して省電力を図ることのできるようにした蛍光灯器具を提供することを課題とする。
【0007】
【課題を解決するための手段】
そこで、本発明に係る蛍光灯器具は、電源電圧が印加される変圧器及び該変圧器の洩れ磁束によって電圧が誘起される磁気洩れ変圧器を含む安定器と、各対の間に蛍光管が接続されることによって相互に直列に接続される2対のソケットと、該2対の各ソケットと上記安定器の変圧器又は磁気洩れ変圧器の出力端子との間に接続され、上記ソケットに加熱電圧を印加して蛍光管のフィラメントを加熱するフィラメント加熱回路と、上記2対のうちの上記直列に接続される両端のソケットと上記安定器の変圧器及び磁気洩れ変圧器の出力端子との間に接続され、上記両端のソケットに点灯電圧を印加する点灯回路と、上記2対のうちの一方の対のソケットの間に装着され、上記点灯電圧の印加によって点灯する蛍光管と、上記2対のうちの他方の対のソケットの間に装着され、該他方の対のソケットに接続される2対の接続端子のうち、対向する2つの接続端子の間に接続される直流抵抗成分の小さい通電手段を含むダミー管と、を備えたことを特徴とする。
【0008】
本発明の特徴の1つは二灯直列逐次始動形の蛍光灯器具において、一方の蛍光管のソケット間を直流抵抗成分の小さい通電手段で接続し、残りの蛍光管に電流を流して点灯させるようにした点にある。これにより、1本の蛍光管のみを点灯させることができるとともに、全体として消費電力をカットして省エネルギーを図ることができる。
【0009】
また、ダミー管を差し換えることによって省電力を実現できるので、従来の安定器を取り換える場合に比して作業が簡単であり、素人にも簡単かつ確実に作業を行うことができ、しかもダミー管は構造が簡単で、部品点数も少なく、コスト高を招来することもない。
【0010】
ダミー管は通電手段を含む構造であればよいが、見栄えの点を考慮すると、蛍光管と同形状の耐熱性の管の両端口金形状部に対の接続端子を固定し、耐熱性の管内に通電手段を内蔵して構成されているのがよい。ダミー管の管は例えば耐熱性の合成樹脂材料を用いて製作することができる。
【0011】
通電手段はダミー管における電力消費を低減すべく、直流抵抗成分の小さいものであることが肝要である。具体的には、通電手段は両端の接続端子のうち、対向する2つの接続端子の間に接続される導体と、該導体の途中に接続されて該導体に流れる電流を制限するコンデンサとから構成することができる。この場合、コンデンサの容量を適宜設定することにより、点灯した蛍光管に流れる電流を任意に設定でき、これにより消費電力を大幅にカットすることもできる。
【0012】
また、電流制限用コンデンサの容量を選択することによって残った1本の蛍光管の照度を自由に調整できる。
【0013】
電流制限用コンデンサには電荷がたまるので、危険防止のためにコンデンサに放電抵抗を並列に接続するのがよい。
【0014】
また、通電手段は両端の接続端子のうち、対向する2つの接続端子の間に接続される導体と、該導体の途中に接続されて該導体に流れる電流を制限するリアクトルとから構成することもできる。
【0015】
さらに、通電手段は両端の接続端子のうち、対向する2つの接続端子の間に接続される導体によって構成することもできる。
【0016】
さらに、消費電力の通常の蛍光管に比して小さい低電力蛍光管を利用することによって省エネルギーを図るようにしてもよい。
【0017】
即ち、ダミー管は、一対の接続端子が取付けられた口金部を両端に有し、一方の口金部の接続端子が上記他方の対のソケットの一方に接続され、上記蛍光管よりも消費電力の小さい低電力蛍光管と、該低電力蛍光管の他方の口金部に連結され、他端に口金形状部を有し、該口金形状部に上記他方の対のソケットの他方に接続される一対の接続端子が取付けられた耐熱性の管と、該耐熱性の管の口金形状部の一対の接続端子の一方と上記低電力蛍光管の他方の口金部の接続端子の一方とを接続する導体と、から構成するようにしてもよい。但し、低電力蛍光管を用いる場合、逐次点灯用のコンデンサを交換し、低電力蛍光管が極端に発熱しないように工夫する必要がある。
【0018】
さらに、省電力のために1本の蛍光管のみを点灯させると、照明が暗くなる。そこで、蛍光管の背後に反射板を設け、照度をアップさせるようにするのが好ましい。
【0019】
反射板はどのように支持してもよく、又どのような形状のものでもよ。例えば、反射板にホルダーを取付け、ホルダーを蛍光管に抱きつかせて反射板を蛍光管に支持するようにしてもよいが、蛍光管の外形に応じて多種類のホルダーを必要とし、又ホルダーが蛍光管の外面に現れて見栄えの点で好ましくない。他方、蛍光管背後のかさ部に反射板を取付けるようにしてもよいが、かさ部には種々な形状があり、反射板を所望の方向に向けてかさ部に取付けることができない場合もある。
【0020】
そこで、反射板は、断面形状が、長さLの中央の第1の直線辺、該第1の直線辺の一側方に第1の直線辺に対して152°ないし156°の角度をなして第1の直線辺とほぼ同じ長さLに延びる第2の直線辺、該第2の直線辺の一側方に第2の直線辺に対して152°ないし156°の角度をなして第1の直線辺の長さLに対して0.40L以上の長さに延びる第3の直線辺、上記第1の直線辺の他側方に第1の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.60Lないし0.65Lの長さに延びる第4の直線辺、該第4の直線辺の他側方に第4の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.60Lないし0.65Lの長さに延びる第5の直線辺、及び該第5の直線辺の他側方に第5の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.40L以上の長さに延びる第6の直線辺からなる非対称角状をなし、該断面形状が上記蛍光管の長手方向のほぼ全長にわたって連続され、上記第1の直線辺を含む外面をほぼ所望の方向に指向させた状態において上記第1ないし第6の直線辺のうち、蛍光管背後の反射板を取付可能なかさ部の部位に対してほぼ平行な直線辺を含む外面を上記蛍光管背後のかさ部に取付可能となす一方、その内面が鏡面処理されているのがよい。
【0021】
このように、反射板の断面形状を第1ないし第6の直線辺からなる非対称角状とすると、蛍光管背後のかさ部がトラフ型、逆富士型、埋め込み型等、どのような形状であっても、非対称角状のいずれかの直線辺を選択することによって反射板を所望の方向に向けて蛍光管のかさ部に取付けることができる。
【0022】
上記非対称角状の条件は本件発明者らの実験によって得られたもので、上記条件の範囲を外れると、蛍光管からの光が特定の方向に偏って所望の方向に全体的に反射されず、所望の照度アップ効果が得られないことが実験的に確認されている。
【0023】
具体的には、第2の直線辺が第1の直線辺に対して155°の角度をなし、第3の直線辺が第2の直線辺に対して155°の角度をなして0.42Lの長さに延び、第4の直線辺が第1の直線辺に対して165°の角度をなして0.62Lの長さに延び、第5の直線辺が第4の直線辺に対して165°の角度をなして0.62Lの長さに延び、第6の直線辺が第5の直線辺に対して165°の角度をなして0.42Lの長さに延びる断面形状が最もよい照度アップ効果が得られることが確認された。
【0024】
反射板はねじや金具を用いて蛍光管背後のかさに取付けるようにしてもよいが、反射板の外面の任意の部位に磁石体を接着剤や粘着剤で取付け、該磁石体を既設の蛍光管背後のかさに磁着させて取付けるようにするのがよい。例えば、反射板の基材をアルミ系合金で製作し、その内面を鏡面処理を行う一方、反射板に磁石体を接着剤又は粘着剤で取付け、磁石体によって蛍光管背後のかさ部に取付けるようにすることができる。鏡面処理は例えば研磨処理でもよく、又適切な材料(例えば、チタンやシリコン等)を用い、公知の方法でコーティングするようにしてもよい。
【0025】
また、2つの蛍光管を点灯させるようにした二灯直列逐次始動形蛍光灯器具において両器具の蛍光管の一方を各々消灯させるに当たり、上記2つの蛍光灯器具のうち、一方の蛍光灯器具の2つの蛍光管の一方を外す一方、他方の蛍光灯器具への電源供給線を切断し、該他方の蛍光灯器具の2つの蛍光管のうちの一方が装着されたソケットと上記一方の蛍光灯器具のうちの外された蛍光管が装着されていたソケットとを導体によって接続し、2つの蛍光灯器具の1つの蛍光管を各々点灯させるようにしても、大幅な省エネルギー、この場合には全体としては約50%の省エネルギーを実現できる。
【0026】
【発明の実施の形態】
以下、本発明を図面に示す具体例に基づいて詳細に説明する。図1は本発明に係る蛍光灯器具の好ましい実施形態を示す。図において、10はラピッドスタート用の蛍光管で、その両端の口金部には2本のコンタクトピン(接続端子)P、Pが突設され、蛍光灯10の口金部内にはフィラメントFが2本のコンタクトピンP、P間に接続して設けられている。
【0027】
また、20はダミー管で、その両端の口金形状部には2本のコンタクトピン(接続端子)P、Pが突設されて通常の蛍光管10とほぼ同様の形態に製作されている。但し、ダミー管20ではガラス管に代え、例えば耐熱合成樹脂製の管が用いられ、又両端のコンタクトピンP、P間は口金形状部の2本のコンタクトピンP、Pの対向する片方が1本の導体21で接続され、該導体21の途中には電流制限用のコンデンサC4 が接続され、該電流制限用のコンデンサC4 には放電抵抗R4 が並列に接続されている。
【0028】
また、30は変圧器Tと磁気洩れ変圧器T0 から構成される安定器で、変圧器Tの1次側コイルには商用電圧が印加され、2次側コイルの出力端から誘導電圧が取り出され、フィラメント加熱回路41によってダミー管20の両端コンタクトピンP・・・及び蛍光管10のダミー管20側のコンタクトピンPが接続されるソケットS・・・に印加されるようになっている。また、変圧器Tの1次側コイルの途中からもフィラメント加熱電圧が取り出され、フィラメント加熱回路41によって蛍光管10のソケットSに印加されるようになっている。
【0029】
さらに、40は安定器30の変圧器Tの商用電圧及び磁気洩れ変圧器T0 の誘導電圧を蛍光管10及びダミー管20が構成する直列回路の両端のソケットS、Sに印加するようなっている。また、C1 は力率改善用コンデンサ、R1 はその放電抵抗、C2 、C3 は2本の蛍光管の直列逐次点灯用コンデンサである。
【0030】
図2及び図3は上記蛍光灯器具において採用される反射板50の好ましい実施形態を示す。図において、反射板50は例えばアルミ系合金を用い、6つの直線辺からなる非対称角状の断面形状を蛍光管10の長手方向のほぼ全長にわたった連続した形状に製作され、その内面の全面には適当な鏡面材料、例えばシリコンやチタン等がコーティングされている。
【0031】
ここに、反射板50の断面形状を詳細に説明すると、図2に示されるように、非対称角状の中央には長さLの第1の直線辺51が設けられ、該第1の直線辺51の一側方には第1の直線辺51に対して155°の角度α1をなす第2の直線辺52が第1の直線辺11とほぼ等しい長さLだけ延びて連続され、該第2の直線辺52の一側方には第2の直線辺52に対して155°の角度α2をなす第3の直線辺53が第1の直線辺51の長さLに対して0.42Lの長さだけ延びて連続されている。
【0032】
また、第1の直線辺51の他側方には第1の直線辺に対して165°の角度α3をなす第4の直線辺54が第1の直線辺51の長さLに対して0.62Lの長さだけ延びて連続され、該第4の直線辺54の他側方には第4の直線辺54に対して165°の角度α4をなす第5の直線辺55が第1の直線辺51の長さLに対して0.62Lの長さだけ延びて連続され、第5の直線辺55の他側方には第5の直線辺55に対して165°の角度α5をなす第6の直線辺56が第1の直線辺51の長さLに対して0.42Lの長さだけ延びて連続されている。
【0033】
次に、動作について説明する。1本の蛍光管10のみを点灯させて省電力を図る場合、他の蛍光管を取外し、そこにダミー管20を接続する。その状態で安定器30の変圧器Tの1次側コイルに商用電圧を印加すると、ダミー管20の両端ソケットピンP・・・には変圧器Tの2次側コイルに発生したフィラメント加熱電流は流れない。点灯初期には変圧器Tと磁気洩れ変圧器T0 の直列出力電圧の印加される回路を考察すると次のようになる。▲1▼.変圧器T及び磁気洩れ変圧器T0 の両端電圧は回路電流がなければ高い電圧が発生する。▲2▼.コンデンサC1 及びコンデンサC4 は低インピーダンスである。▲3▼. コンデンサC2 及びコンデンサC3 は高インピーダンスである。▲4▼. 蛍光管10の両端フィラメントF、Fの間は点灯するまでは高インピーダンスである。▲5▼.当該回路の電流は少なく、蛍光管10の両端フィラメントF、Fの間に高い電圧が瞬間に印加され、蛍光管10が点灯する。▲6▼.蛍光管10の両端フィラメントF、Fにはフィラメント加熱電流が流れて安定した点灯状態に移行する。こうして蛍光管10が点灯することとなる。
【0034】
その際、ダミー管20では両端のコンタクトピンP、P間が1本の導体21で接続され、導体21の途中に電流制限用コンデンサC4 が介設されているので、流れる電流が制限された導体として機能する。
【0035】
従って、蛍光灯器具の全体として見た場合には1本の蛍光管10のみが点灯し、電流制限用コンデンサC4 の容量を適宜設定することによって蛍光管10に流れる電流を二灯とも点灯する場合の電流に制御することができ、消費電力を大幅に低減できる。本件発明者らの実験によれば、消費電力を約1/2に抑制できることが確認された。
【0036】
さらに、電流制限用コンデンサC4 の容量を適宜設定することによって蛍光管10に流れる電流を任意に照度を調整することもできる。
【0037】
上述のようにして1本の蛍光管10のみを点灯させると、蛍光灯器具の全体としての照度が低下する。そこで、蛍光管10の背後に反射板50を設置する。
【0038】
反射板50を取付ける場合、蛍光管10を照明器具から外し、反射板50を所望の方向、例えば下方に指向させた状態において、その断面形状における第1〜第6の直線辺51〜56のうちから、蛍光管背後のかさ部70の形状に適した1つを選択し、その外面に磁石体60を接着剤又は粘着剤、例えば両面接着テープを用いて固定し、磁石体60を蛍光管背後のかさ部70に磁着させると、反射板50を蛍光管背後のかさ部70に取付けることができる。後は蛍光管10を元のようにセットすればよい。
【0039】
例えば、蛍光管背後のかさ部70が図4に示されるような逆富士型の場合、反射板50の第2の直線辺52を選び、その面を磁石体60によってかさ部70に磁着させると、反射板50を下方に向けてセットすることができる。
【0040】
また、蛍光管背後のかさ部21が図5に示されるような埋め込み型の場合、反射板50を上記とは左右を逆に向け、その第5の直線辺55を選び、その面を磁石体60によってかさ部70に磁着させると、反射板50を下方に向けてセットすることができる。
【0041】
こうして反射板50をセットすると、蛍光管10から発せられる光うち、後方に向かう光は図3に示されるように、各直線辺51〜56の面によって下方に向けて乱反射され、蛍光管10から直接下方に指向する光とともに蛍光管10の下方を全体的に明るく照らし、所望の照度アップ効果が得られる。本件発明者らの試作によれば、40Wの蛍光管の場合、下方の照度を1.5倍ないし1.8倍にアップできることが確認された。
【0042】
図6は本発明の第2の実施形態を示す。図において図1と同一符号は同一又は相当部分を示す。本例ではダミー管20が用いられる点で第1の実施形態とほぼ同様であるが、ダミー管20がコンデンサC4 及び放電抵抗R4 に代え、リアクトル22を用いて構成されている点で異なる。本例においても第1の実施形態と同様の省エネルギー効果を奏する。
【0043】
図7は本発明の第3の実施形態を示す。図において図1と同一符号は同一又は相当部分を示す。本例ではダミー管20がコンデンサC4 及び放電抵抗R4 に代え、導体21のみで構成されている点で異なる。本例においても第1の実施形態と同様の省エネルギー効果を奏する。
【0044】
図8及び図9は本発明の第4の実施形態を示す。図において図1と同一符号は同一又は相当部分を示す。本例では低電力蛍光管11を用いてダミー管20を構成している。即ち、低電力蛍光管11は例えば100V10Wの蛍光管であって、該低電力蛍光管11の両端にはコンタクトピン(接続端子)P、Pを有する口金部12が設けられ、一方の口金部12のコンタクトピンP、Pは蛍光灯器具のソケットSに接続されるようになっている。
【0045】
この低電力蛍光管11の他方の口金部12には耐熱性のジョイント器具24によって耐熱合成樹脂製の管23の一端側が連結され、該管23の他端には口金形状部26が設けられ、該口金形状部26には2つのコンタクトピンP、Pが取付けられている。また、低電力蛍光管11の他方の口金部12の一方のコンタクトピンPにはキャップ状の接続金具25が嵌め込まれ、該接続金具25と耐熱合成樹脂製の管23の他端に一方のコンタクトピンPとが1本の導体21で接続されている。低電力蛍光管11の両端口金部12、12の一方のコンタクトピンP、Pには電圧調整用のコンデンサ28が接続されている。
【0046】
本例においても第1の実施形態と同様の省エネルギー効果を奏するばかりでなく、低電力蛍光管11の点灯によって第1ないし第3の実施形態に比して照度の低下を抑制できる。なお、この場合、低電力蛍光管11の寿命を確保するためにはコンデンサC3 の容量を適切に設定するか、又コンデンサC3 に、容量調整用のコンデンサを負荷する必要がある。なお、いずれの実施形態においても蛍光管10とダミー管20の位置を入れ換えても同様の効果が得られる。
【0047】
図10は本発明の第5の実施形態を示す。本例では2つの二灯直列逐次始動形蛍光灯において、両方の蛍光灯器具の2つの蛍光管10、10のうちの一方を外すともに、一方の蛍光灯器具への電源供給線は切断し、他方の蛍光灯器具の外した蛍光管のソケットS、Sと一方の蛍光灯器具の残った蛍光管10のソケットS、Sとを電線27・・・で接続し、2つの蛍光灯器具の1つの蛍光管10、10を各々点灯させるようにしている。
【0048】
本例においても第1の実施形態に比して大幅、即ち全体として約50%の省エネルギー効果を奏する。
【図面の簡単な説明】
【図1】 本発明に係る蛍光灯器具の好ましい実施形態における回路構成を示す図である。
【図2】 上記蛍光灯器具において用いられる反射板の好ましい実施形態を示す図である。
【図3】 上記反射板の光反射作用を模式的に示す図である。
【図4】 上記反射板の取付け例を示す図である。
【図5】 上記反射板の他の取付け例を示す図である。
【図6】 第2の実施形態における回路構成を示す図である。
【図7】 第3の実施形態における回路構成を示す図である。
【図8】 第4の実施形態における回路構成を示す図である。
【図9】 上記第4の実施形態における蛍光灯の外観(a) 及びダミー管20の構造(b) を示す図である。
【図10】 第5の実施形態を示す巣である。
【符号の説明】
10 蛍光管
11 低電力蛍光管
12 口金部
20 ダミー管
21 導体
22 リアクトル
23 耐熱合成樹脂管
24 ジョイント器具
25 接続金具
26 口金形状部
27 電力供給線(導体)
30 安定器
40 フィラメント加熱回路
41 点灯回路
50 反射板
51 第1の直線辺
52 第2の直線辺
53 第3の直線辺
54 第4の直線辺
55 第5の直線辺
56 第6の直線辺
60 磁石体
70 かさ部
C4 電流制限用コンデンサ
R4 放電抵抗
F フィラメント
P コンタクトピン
S ソケット
T 変圧器
T0 磁気洩れ変圧器
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-lamp serial sequential start-up type fluorescent lamp fixture, and more particularly, to a two-lamp serial sequential startup type fixture that can easily and surely turn on only one lamp to save power.
[0002]
[Prior art]
In offices, shops, factories, etc., it is common to illuminate the entire interior by attaching a large number of lighting fixtures to the ceiling. However, fluorescent lighting fixtures, for example, two fluorescent lighting fixtures, are often used as lighting fixtures. Yes.
[0003]
There are two types of fluorescent lamps for two lamps, a parallel type and a series type, but the actual situation is that a series type that is superior in terms of performance and price is widespread.
[0004]
Recently, there has been a demand for energy saving by screaming energy saving and turning off one lamp for lighting fixtures.
[0005]
[Problems to be solved by the invention]
However, in the conventional in-series type two-lamp fluorescent lamp apparatus, if one lamp is removed, the remaining one lamp is turned off. In order to cope with this, it is necessary to open the cover of the fluorescent lamp fixture and replace the ballast with a parallel lighting type ballast, which is not only cumbersome, but also incurs high costs, and even for amateurs Has the problem that it cannot be easily replaced.
[0006]
In view of such problems, an object of the present invention is to provide a fluorescent lamp apparatus that can be easily handled by an amateur and can save power by turning off one lamp.
[0007]
[Means for Solving the Problems]
Therefore, a fluorescent lamp apparatus according to the present invention includes a transformer including a transformer to which a power supply voltage is applied, a magnetic leakage transformer in which a voltage is induced by a leakage magnetic flux of the transformer, and a fluorescent tube between each pair. Two pairs of sockets connected in series by being connected, and connected between each of the two pairs of sockets and the output terminal of the ballast transformer or magnetic leakage transformer, and heating the socket Between the filament heating circuit for heating the filament of the fluorescent tube by applying a voltage, the sockets at both ends of the two pairs connected in series, and the output terminals of the ballast transformer and the magnetic leakage transformer A lighting circuit for applying a lighting voltage to the sockets at both ends, a fluorescent tube mounted between one of the two pairs of sockets and lit by the application of the lighting voltage, and the two pairs The other of A dummy tube that is mounted between a pair of sockets and includes a current-carrying means having a small DC resistance component connected between two opposing connection terminals of two pairs of connection terminals connected to the other pair of sockets And.
[0008]
One of the features of the present invention is a two-lamp serial sequential starting type fluorescent lamp fixture, in which one fluorescent tube socket is connected by a current-carrying means having a small DC resistance component, and a current is passed through the remaining fluorescent tubes to light them. It is in the point which did. As a result, only one fluorescent tube can be turned on, and power consumption can be cut as a whole to save energy.
[0009]
In addition, power can be saved by replacing the dummy tube, so the work is simpler than replacing a conventional ballast, and it can be easily and reliably performed by amateurs. The structure is simple, the number of parts is small, and the cost is not increased.
[0010]
The dummy tube only needs to have a structure including a current-carrying means, but considering the appearance, the pair of connection terminals are fixed to both ends of the heat-resistant tube having the same shape as the fluorescent tube, and the heat-resistant tube is placed inside the tube. It is preferable that the power supply means is built in. The dummy tube can be manufactured using, for example, a heat-resistant synthetic resin material.
[0011]
It is important that the energizing means has a small DC resistance component in order to reduce power consumption in the dummy tube. Specifically, the energization means is composed of a conductor connected between two opposing connection terminals among the connection terminals at both ends, and a capacitor connected in the middle of the conductor to limit the current flowing through the conductor. can do. In this case, by appropriately setting the capacitance of the capacitor, the current flowing through the lit fluorescent tube can be arbitrarily set, and the power consumption can be greatly cut.
[0012]
Further, the illuminance of the remaining single fluorescent tube can be freely adjusted by selecting the capacity of the current limiting capacitor.
[0013]
Since electric charge is accumulated in the current limiting capacitor, it is preferable to connect a discharge resistor in parallel with the capacitor to prevent danger.
[0014]
The energizing means may be composed of a conductor connected between two opposing connection terminals, and a reactor connected to the middle of the conductor and restricting a current flowing through the conductor. it can.
[0015]
Further, the energization means can be constituted by a conductor connected between two opposing connection terminals among the connection terminals at both ends.
[0016]
Furthermore, energy saving may be achieved by using a low-power fluorescent tube that is smaller than a normal fluorescent tube with low power consumption.
[0017]
That is, the dummy tube has a base portion to which a pair of connection terminals are attached at both ends, and the connection terminal of one base portion is connected to one of the other pair of sockets, and consumes less power than the fluorescent tube. A pair of a small low power fluorescent tube and a base portion connected to the other base portion of the low power fluorescent tube, having a base shape portion at the other end, and connected to the other of the other pair of sockets at the base shape portion A heat-resistant tube to which a connection terminal is attached; and a conductor that connects one of a pair of connection terminals of the cap-shaped portion of the heat-resistant tube and one of the connection terminals of the other cap portion of the low-power fluorescent tube; You may make it comprise from these. However, when a low power fluorescent tube is used, it is necessary to replace the sequential lighting capacitor so that the low power fluorescent tube does not generate excessive heat.
[0018]
Furthermore, when only one fluorescent tube is turned on for power saving, the illumination becomes dark. Therefore, it is preferable to provide a reflector behind the fluorescent tube to increase the illuminance.
[0019]
The reflector may be supported in any manner and may have any shape. For example, a holder may be attached to the reflector, and the holder may be hung on the fluorescent tube so that the reflector is supported by the fluorescent tube, but various types of holders are required depending on the outer shape of the fluorescent tube. It appears on the outer surface of the fluorescent tube and is not preferable in terms of appearance. On the other hand, the reflector may be attached to the umbrella behind the fluorescent tube, but the umbrella has various shapes, and the reflector may not be attached to the umbrella in a desired direction.
[0020]
Therefore, the reflecting plate has a cross-sectional shape having an angle of 152 ° to 156 ° with respect to the first straight side on one side of the first straight side and the first straight side of the center of the length L. The second straight side extending to approximately the same length L as the first straight side, and the first straight side is formed at an angle of 152 ° to 156 ° with respect to the second straight side on one side of the second straight side. A third straight side extending to a length of 0.40 L or more with respect to the length L of one straight side, 163 ° to 167 ° with respect to the first straight side on the other side of the first straight side. A fourth straight line extending at a length of 0.60L to 0.65L with respect to the length L of the first straight line side, and a fourth straight line on the other side of the fourth straight line side A fifth straight side extending from 0.60L to 0.65L with respect to the length L of the first straight side at an angle of 163 ° to 167 ° with respect to the side; The sixth straight line extends to a length of 0.40 L or more with respect to the length L of the first straight line at an angle of 163 ° to 167 ° with respect to the fifth straight line on the other side of the fifth straight line. The cross-sectional shape is continuous over substantially the entire length in the longitudinal direction of the fluorescent tube, and the outer surface including the first straight side is oriented in a desired direction. Among the first to sixth straight sides, an outer surface including a straight side that is substantially parallel to a portion of the cap portion to which the reflector behind the fluorescent tube can be attached can be attached to the cap portion behind the fluorescent tube, The inner surface is preferably mirror-finished.
[0021]
As described above, when the cross-sectional shape of the reflector is an asymmetrical angular shape including the first to sixth straight sides, the shape of the bevel behind the fluorescent tube is any shape such as a trough type, an inverted Fuji type, and an embedded type. However, the reflector can be attached to the bulk portion of the fluorescent tube in a desired direction by selecting one of the asymmetrical straight sides.
[0022]
The asymmetric angular condition is obtained by the inventors' experiments. If the condition is outside the range, the light from the fluorescent tube is biased in a specific direction and is not totally reflected in a desired direction. It has been experimentally confirmed that a desired illuminance increase effect cannot be obtained.
[0023]
Specifically, the second straight side forms an angle of 155 ° with respect to the first straight side, and the third straight side forms an angle of 155 ° with respect to the second straight side. The fourth straight side extends at a length of 0.62L at an angle of 165 ° with respect to the first straight side, and the fifth straight side extends with respect to the fourth straight side. The best cross-sectional shape is an angle of 165 ° extending to a length of 0.62L, and the sixth straight side extends to a length of 0.42L at an angle of 165 ° with respect to the fifth straight side. It was confirmed that the effect of increasing the illuminance was obtained.
[0024]
The reflector may be attached to the back of the fluorescent tube using screws or metal fittings. However, a magnet body is attached to any part of the outer surface of the reflector plate with an adhesive or an adhesive, and the magnet body is attached to the existing fluorescent lamp. It is better to attach the magnet behind the tube. For example, the reflector base is made of an aluminum alloy and the inner surface is mirror-finished, while the magnet is attached to the reflector with an adhesive or adhesive, and the magnet is attached to the back of the fluorescent tube. Can be. The mirror surface treatment may be, for example, a polishing treatment, or may be coated by a known method using an appropriate material (for example, titanium or silicon).
[0025]
In addition, in turning off one of the fluorescent tubes of the two fluorescent lamp fixtures in the two-lamp serial sequential starting type fluorescent lamp fixture in which the two fluorescent tubes are turned on, of the two fluorescent lamp fixtures, One of the two fluorescent tubes is removed, the power supply line to the other fluorescent lamp fixture is disconnected, and the socket in which one of the two fluorescent tubes of the other fluorescent lamp fixture is mounted and the one fluorescent lamp Even if the socket in which the removed fluorescent tube is mounted is connected by a conductor and one fluorescent tube of each of the two fluorescent lamps is lit, energy saving can be achieved. As a result, energy saving of about 50% can be realized.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. FIG. 1 shows a preferred embodiment of a fluorescent lamp apparatus according to the present invention. In the drawing, reference numeral 10 denotes a rapid start fluorescent tube, and two contact pins (connection terminals) P and P project from the base portions at both ends thereof, and two filaments F are provided in the base portion of the fluorescent lamp 10. Between the contact pins P and P.
[0027]
Reference numeral 20 denotes a dummy tube, and two contact pins (connection terminals) P, P project from the cap-shaped portions at both ends of the dummy tube, and are manufactured in a configuration almost the same as that of a normal fluorescent tube 10. However, instead of the glass tube, the dummy tube 20 is made of, for example, a heat-resistant synthetic resin tube, and between the contact pins P, P at both ends, one of the two contact pins P, P facing the cap-shaped portion is one. A current limiting capacitor C4 is connected in the middle of the conductor 21, and a discharge resistor R4 is connected in parallel to the current limiting capacitor C4.
[0028]
Reference numeral 30 denotes a ballast composed of a transformer T and a magnetic leakage transformer T0. A commercial voltage is applied to the primary coil of the transformer T, and an induced voltage is taken out from the output terminal of the secondary coil. The filament heating circuit 41 applies the contact pins P of both ends of the dummy tube 20 to the sockets S to which the contact pins P on the dummy tube 20 side of the fluorescent tube 10 are connected. Further, the filament heating voltage is taken out from the middle of the primary side coil of the transformer T and is applied to the socket S of the fluorescent tube 10 by the filament heating circuit 41.
[0029]
Further, 40 applies the commercial voltage of the transformer T of the ballast 30 and the induced voltage of the magnetic leakage transformer T0 to the sockets S, S at both ends of the series circuit formed by the fluorescent tube 10 and the dummy tube 20. . C1 is a power factor improving capacitor, R1 is a discharge resistance thereof, and C2 and C3 are capacitors for sequential sequential lighting of two fluorescent tubes.
[0030]
2 and 3 show a preferred embodiment of the reflector 50 employed in the fluorescent lamp apparatus. In the figure, the reflecting plate 50 is made of, for example, an aluminum alloy, and has an asymmetric angular cross-sectional shape composed of six straight sides that is formed into a continuous shape over almost the entire length in the longitudinal direction of the fluorescent tube 10. Is coated with a suitable mirror surface material such as silicon or titanium.
[0031]
Here, the cross-sectional shape of the reflector 50 will be described in detail. As shown in FIG. 2, a first straight side 51 having a length L is provided at the center of the asymmetric angular shape, and the first straight side is provided. On one side of 51, a second straight side 52, which forms an angle α1 of 155 ° with respect to the first straight side 51, extends for a length L substantially equal to that of the first straight side 11, and is continuous. On one side of the second straight side 52, a third straight side 53 having an angle α 2 of 155 ° with respect to the second straight side 52 is 0.42 L with respect to the length L of the first straight side 51. It is continuous and extended by the length of.
[0032]
Further, on the other side of the first straight side 51, a fourth straight side 54 having an angle α3 of 165 ° with respect to the first straight side 51 is 0 with respect to the length L of the first straight side 51. A fifth straight side 55 extending continuously by a length of .62L and having an angle α4 of 165 ° with respect to the fourth straight side 54 is provided on the other side of the fourth straight side 54. The length L of the straight side 51 is extended by a length of 0.62 L, and the other side of the fifth straight side 55 forms an angle α5 of 165 ° with respect to the fifth straight side 55. The sixth straight side 56 extends continuously by a length of 0.42 L with respect to the length L of the first straight side 51.
[0033]
Next, the operation will be described. In order to save power by lighting only one fluorescent tube 10, the other fluorescent tube is removed and the dummy tube 20 is connected thereto. When commercial voltage is applied to the primary side coil of the transformer T of the ballast 30 in that state, the filament heating current generated in the secondary side coil of the transformer T is applied to the socket pins P... Not flowing. Considering the circuit to which the series output voltage of the transformer T and the magnetic leakage transformer T0 is applied at the beginning of lighting is as follows. (1). The voltage across the transformer T and the magnetic leakage transformer T0 is high if there is no circuit current. (2). Capacitor C1 and capacitor C4 are low impedance. (3) Capacitor C2 and capacitor C3 are high impedance. {Circle over (4)} The filaments F, F at both ends of the fluorescent tube 10 have high impedance until they are lit. (5). The current in the circuit is small, and a high voltage is instantaneously applied between the filaments F, F at both ends of the fluorescent tube 10, and the fluorescent tube 10 is turned on. (6). The filament heating current flows through the filaments F, F at both ends of the fluorescent tube 10, and the state shifts to a stable lighting state. Thus, the fluorescent tube 10 is turned on.
[0034]
At that time, in the dummy tube 20, the contact pins P, P at both ends are connected by a single conductor 21, and a current limiting capacitor C4 is interposed in the middle of the conductor 21, so that the flowing current is limited. Function as.
[0035]
Therefore, when the fluorescent lamp apparatus is viewed as a whole, only one fluorescent tube 10 is turned on, and the current flowing through the fluorescent tube 10 is turned on by appropriately setting the capacity of the current limiting capacitor C4. Current consumption can be controlled, and power consumption can be greatly reduced. According to the experiments by the present inventors, it was confirmed that the power consumption can be suppressed to about ½.
[0036]
Furthermore, the illuminance of the current flowing through the fluorescent tube 10 can be arbitrarily adjusted by appropriately setting the capacity of the current limiting capacitor C4.
[0037]
If only one fluorescent tube 10 is turned on as described above, the illuminance of the fluorescent lamp fixture as a whole decreases. Therefore, a reflector 50 is installed behind the fluorescent tube 10.
[0038]
When attaching the reflecting plate 50, the fluorescent tube 10 is removed from the lighting fixture, and the reflecting plate 50 is oriented in a desired direction, for example, downward, among the first to sixth straight sides 51 to 56 in the cross-sectional shape. From this, one suitable for the shape of the bevel 70 behind the fluorescent tube is selected, and the magnet body 60 is fixed to the outer surface thereof with an adhesive or an adhesive, for example, double-sided adhesive tape, and the magnet body 60 is fixed to the back of the fluorescent tube. When magnetically attached to the umbrella portion 70, the reflector 50 can be attached to the umbrella portion 70 behind the fluorescent tube. After that, the fluorescent tube 10 may be set as the original.
[0039]
For example, when the bevel portion 70 behind the fluorescent tube is an inverted Fuji type as shown in FIG. 4, the second straight side 52 of the reflecting plate 50 is selected and the surface thereof is magnetically attached to the bevel portion 70 by the magnet body 60. Then, the reflecting plate 50 can be set facing downward.
[0040]
Further, in the case where the beveled portion 21 behind the fluorescent tube is of the embedded type as shown in FIG. 5, the reflecting plate 50 is turned left and right opposite to the above, the fifth straight side 55 is selected, and the surface is magnetized. When 60 is magnetically attached to the umbrella part 70, the reflecting plate 50 can be set facing downward.
[0041]
When the reflecting plate 50 is set in this way, among the light emitted from the fluorescent tube 10, the backward light is irregularly reflected downward by the surfaces of the straight sides 51 to 56 as shown in FIG. A desired illuminance increase effect can be obtained by illuminating the entire lower part of the fluorescent tube 10 with light directed directly downward. According to the prototypes of the present inventors, in the case of a 40 W fluorescent tube, it was confirmed that the lower illuminance can be increased by 1.5 to 1.8 times.
[0042]
FIG. 6 shows a second embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 denote the same or corresponding parts. This example is substantially the same as the first embodiment in that a dummy tube 20 is used, but differs in that the dummy tube 20 is configured using a reactor 22 instead of the capacitor C4 and the discharge resistor R4. Also in this example, the same energy saving effect as that of the first embodiment is obtained.
[0043]
FIG. 7 shows a third embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 denote the same or corresponding parts. In this example, the dummy tube 20 is different from the capacitor C4 and the discharge resistor R4 in that only the conductor 21 is used. Also in this example, the same energy saving effect as that of the first embodiment is obtained.
[0044]
8 and 9 show a fourth embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 denote the same or corresponding parts. In this example, the dummy tube 20 is configured using the low power fluorescent tube 11. That is, the low power fluorescent tube 11 is, for example, a 100 V 10 W fluorescent tube, and a base portion 12 having contact pins (connection terminals) P and P is provided at both ends of the low power fluorescent tube 11, and one base portion 12 is provided. The contact pins P and P are connected to a socket S of a fluorescent lamp fixture.
[0045]
One end side of a heat-resistant synthetic resin tube 23 is connected to the other base portion 12 of the low-power fluorescent tube 11 by a heat-resistant joint device 24, and a base-shaped portion 26 is provided at the other end of the tube 23. Two contact pins P, P are attached to the base-shaped portion 26. A cap-shaped connection fitting 25 is fitted into one contact pin P of the other base 12 of the low power fluorescent tube 11, and one contact is connected to the other end of the connection fitting 25 and the heat-resistant synthetic resin tube 23. The pin P is connected by a single conductor 21. A voltage adjusting capacitor 28 is connected to one of the contact pins P of the both end caps 12 of the low power fluorescent tube 11.
[0046]
Also in this example, not only the energy saving effect similar to that of the first embodiment is exhibited, but also a decrease in illuminance can be suppressed by lighting the low-power fluorescent tube 11 as compared with the first to third embodiments. In this case, in order to ensure the life of the low-power fluorescent tube 11, it is necessary to set the capacity of the capacitor C3 appropriately or load a capacitor for capacity adjustment on the capacitor C3. In any of the embodiments, the same effect can be obtained even if the positions of the fluorescent tube 10 and the dummy tube 20 are interchanged.
[0047]
FIG. 10 shows a fifth embodiment of the present invention. In this example, in two two-lamp serial sequential start-up type fluorescent lamps, one of the two fluorescent tubes 10, 10 of both fluorescent lamp fixtures is removed, and the power supply line to one of the fluorescent lamp fixtures is disconnected, The sockets S and S of the fluorescent tube removed from the other fluorescent lamp fixture and the sockets S and S of the remaining fluorescent tube 10 of the one fluorescent fixture are connected by electric wires 27. Each of the fluorescent tubes 10 and 10 is turned on.
[0048]
Also in this example, the energy saving effect is significant, that is, about 50% as a whole as compared with the first embodiment.
[Brief description of the drawings]
FIG. 1 is a diagram showing a circuit configuration in a preferred embodiment of a fluorescent lamp apparatus according to the present invention.
FIG. 2 is a view showing a preferred embodiment of a reflector used in the fluorescent lamp apparatus.
FIG. 3 is a diagram schematically showing the light reflecting action of the reflecting plate.
FIG. 4 is a view showing an example of attachment of the reflecting plate.
FIG. 5 is a view showing another example of attachment of the reflecting plate.
FIG. 6 is a diagram showing a circuit configuration in a second embodiment.
FIG. 7 is a diagram showing a circuit configuration in a third embodiment.
FIG. 8 is a diagram showing a circuit configuration in a fourth embodiment.
FIG. 9 is a diagram showing an external appearance (a) of a fluorescent lamp and a structure (b) of a dummy tube 20 in the fourth embodiment.
FIG. 10 is a nest showing a fifth embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Fluorescent tube 11 Low power fluorescent tube 12 Base part 20 Dummy pipe 21 Conductor 22 Reactor 23 Heat-resistant synthetic resin pipe 24 Joint instrument 25 Connection metal fitting 26 Base shape part 27 Electric power supply line (conductor)
30 Ballast 40 Filament heating circuit 41 Lighting circuit 50 Reflector 51 First straight side 52 Second straight side 53 Third straight side 54 Fourth straight side 55 Fifth straight side 56 Sixth straight side 60 Magnet body 70 Cap portion C4 Current limiting capacitor R4 Discharge resistor F Filament P Contact pin S Socket T Transformer T0 Magnetic leakage transformer

Claims (2)

電源電圧が印加される変圧器及び該変圧器の洩れ磁束によって電圧が誘起される磁気洩れ変圧器を含む安定器と、
各対の間に蛍光管が接続されることによって相互に直列に接続される2対のソケットと、
該2対の各ソケットと上記安定器の変圧器又は磁気洩れ変圧器の出力端子との間に接続され、上記ソケットに加熱電圧を印加して蛍光管のフィラメントを加熱するフィラメント加熱回路と、
上記2対のうちの上記直列に接続される両端のソケットと上記安定器の変圧器及び磁気洩れ変圧器の出力端子との間に接続され、上記両端のソケットに点灯電圧を印加する点灯回路と、
上記2対のうちの一方の対のソケットの間に装着され、上記点灯電圧の印加によって点灯する蛍光管と、
上記2対のうちの他方の対のソケットの間に装着され、該他方の対のソケットに接続される2対の接続端子のうち、対向する2つの接続端子の間に接続される直流抵抗成分の小さい通電手段を含むダミー管と、
上記蛍光管の背後のかさ部に取付けられる反射板と、を備え、
上記反射板は、断面形状が、長さLの中央の第1の直線辺、該第1の直線辺の一側方に第1の直線辺に対して152°ないし156°の角度をなして第1の直線辺とほぼ同じ長さLに延びる第2の直線辺、該第2の直線辺の一側方に第2の直線辺に対して152°ないし156°の角度をなして第1の直線辺の長さLに対して0.40L以上の長さに延びる第3の直線辺、上記第1の直線辺の他側方に第1の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.60Lないし0.65Lの長さに延びる第4の直線辺、該第4の直線辺の他側方に第4の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.60Lないし0.65Lの長さに延びる第5の直線辺、及び該第5の直線辺の他側方に第5の直線辺に対して163°ないし167°の角度をなして第1の直線辺の長さLに対して0.40L以上の長さに延びる第6の直線辺からなる非対称角状をなし、
該断面形状が上記蛍光管の長手方向のほぼ全長にわたって連続され、上記第1の直線辺を含む外面をほぼ所望の方向に指向させた状態において上記第1ないし第6の直線辺のうち、蛍光管背後の反射板を取付可能なかさ部の部位に対してほぼ平行な直線辺を含む外面を上記蛍光管背後のかさ部に取付可能となす一方、その内面が鏡面処理されていることを特徴とする蛍光灯器具。
A transformer including a transformer to which a power supply voltage is applied and a magnetic leakage transformer in which a voltage is induced by the leakage flux of the transformer;
Two pairs of sockets connected in series with each other by connecting a fluorescent tube between each pair;
A filament heating circuit connected between each of the two pairs of sockets and an output terminal of the ballast transformer or magnetic leakage transformer, and applying a heating voltage to the socket to heat the filament of the fluorescent tube;
A lighting circuit that is connected between the sockets at both ends of the two pairs connected in series and the output terminals of the transformer of the ballast and the magnetic leakage transformer, and applies a lighting voltage to the sockets at both ends; ,
A fluorescent tube mounted between one of the two pairs of sockets and lit by application of the lighting voltage;
DC resistance component connected between two opposing connection terminals of two pairs of connection terminals that are mounted between the other pair of sockets of the two pairs and connected to the other pair of sockets A dummy tube including a small energizing means,
A reflector attached to the back of the fluorescent tube; and
The reflecting plate has a cross-sectional shape of an angle of 152 ° to 156 ° with respect to the first straight line on one side of the first straight line, the first straight line having a length L in the center. A second straight side extending substantially the same length L as the first straight side, and a first straight line having an angle of 152 ° to 156 ° with respect to the second straight side on one side of the second straight side. A third straight side extending to a length of 0.40 L or more with respect to the length L of the straight side, 163 ° to 167 ° with respect to the first straight side on the other side of the first straight side. A fourth straight side extending at an angle of 0.60L to 0.65L with respect to the length L of the first straight side, and a fourth straight side on the other side of the fourth straight side. A fifth straight side extending from 0.60L to 0.65L with respect to the length L of the first straight side at an angle of 163 ° to 167 ° with respect to the first straight side, and the fifth A sixth straight line extending to the other side of the straight line at an angle of 163 ° to 167 ° with respect to the fifth straight line and extending to a length of 0.40 L or more with respect to the length L of the first straight line Asymmetric horn shape consisting of sides,
Of the first to sixth straight sides, the fluorescent light is fluorescent in a state in which the cross-sectional shape is continuous over substantially the entire length in the longitudinal direction of the fluorescent tube and the outer surface including the first straight side is oriented in a substantially desired direction. The outer surface including a straight side substantially parallel to the portion of the bevel where the reflector behind the tube can be attached can be attached to the bevel behind the fluorescent tube, while the inner surface is mirror-finished. Fluorescent lamp fixtures.
上記第2の直線辺が上記第1の直線辺に対して155°の角度をなし、上記第3の直線辺が上記第2の直線辺に対して155°の角度をなして0.42Lの長さに延び、上記第4の直線辺が上記第1の直線辺に対して165°の角度をなして0.62Lの長さに延び、上記第5の直線辺が上記第4の直線辺に対して165°の角度をなして0.62Lの長さに延び、上記第6の直線辺が上記第5の直線辺に対して165°の角度をなして0.42Lの長さに延びる請求項1記載の蛍光灯器具。The second straight side forms an angle of 155 ° with respect to the first straight side, and the third straight side forms an angle of 155 ° with respect to the second straight side and is 0.42L. The fourth straight side extends to a length of 0.62 L at an angle of 165 ° with respect to the first straight side, and the fifth straight side is the fourth straight side. The sixth straight side extends to a length of 0.62 L with respect to the fifth straight side, and the sixth straight side extends to a length of 0.42 L with respect to the fifth straight side. claim 1 Symbol placement of fluorescent lamp fixture.
JP3225899A 1998-11-11 1999-02-10 Fluorescent lamp fixtures Expired - Fee Related JP3799565B2 (en)

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