【発明の詳細な説明】[Detailed description of the invention]
〔発明０）利用分野〕
本発明は天井面に直接あるいは吊具などによって取付鍔
らｎ４．特にフレアの防＋）−′ｊ６よびＣＲＴ画面な
どへの発光部の映り込みを防止し、コンビュー夕関連の
ＯＡ機器を使用する部屋の照明に適し。
た蛍光灯器具に関するものである。
〔発明の背景〕
近年のＯＡ機器の発達に伴ない、照明の質に対′ｔろ要
求が高まっているが、従来より言わわ、てい１こフレア
の防止とＣＩも１画面などディスプレイ画面への照明器
具発光部の映り込み防止とは必すしも招入ｎ、ない面が
ある。すなわち、フレア防止の■６明器具の配光は主お
してバラトウインク形の配光を良しとしているが、ディ
スプレイ画面への映り込みを防止することはできない。
ディスプレイ画面への映り込みは、照明器具における発
光部分とその周囲古の輝度対比が大きいと、ディスプレ
イを見る者ｌこ対して目の疲労をよねきやすいという問
題を生ずる。一方 ディスプレイ画面への照明器具発光
部の映り込み防止は、１頁下方向への光が殆んどである
ある種のルーバー付器具を使用すｎ、ば、はゾ確実に実
施できろものである。しかしながら、この種の照明器具
によ旧、は、天井面が暗く陰うつな照明環境ｌこなる可
能性があり、また器具効率が低下するという問題がある
。
そこで、ディスプレイ画面への照明器具発光部の映り込
み防止が可能で、同時に天井面へも光を出して天井面を
明るくしクレーＴ゛は防止している照明器具が実公昭５
ｓ−１ｏ２４ｓ号等で提案すｒ１５でいる。しかしなが
ら、天井面への光の照射はた＼゛単に光が通る隙間を設
けたというに留どまり、下面にルーパー等を設置すると
器具効率が大きく低下′；″るこおはまぬ力汀′１ない
という問題を残している。
〔発明Ｑ岨的〕
本発明はこのような事情に鑑み、ディスプレイ画面への
照明器具発光部の映り込みを防止すると共にフレアの発
生を防１１：、シ、しかも器具効率のよい蛍光灯器具を
提供しようとするものである。
〔発明の概要〕
本発明（ツ、照明器具発光部のディスプレイ画面への映
り込みを防止するため、照明器具からの光の放射方向を
下方と水平より上方を主体に構成しＰもので、下方ヘク
）光はルーパーにより制御し１、上方への光は主としで
ルーパーの両側に設けた反射板によ小反射光で形成し、
ルーパーと間接照明の手法を組合わせた所に特徴がある
。
〔発明の実施レリ〕
第１図、第２図は本発明による蛍光灯器具の基本的な実
施列を示すもので１図ＩＣ′ｊ６いて１は器具本体でソ
ケット１１を備えており、蛍光ランプ】２が取付けらｎ
ｌている。２は器具本体下方に設けたルーパーで、この
ルーパー２にはその長手方向側辺に添って間接光制御板
３を並設している。こσ）間接光制御板３は蛍光ランプ
１２の光の上方ヘク）反射と水平方向へσ）直射光の遮
光さいう２つ０）＠能を有しており、フレア防止に効果
がある。４（オ本体反射板で、蛍光う／ブ１２からの直
射光あるいは前記間接光制御板３からの反射光を、間接
光制御板３の上端から上方の空間へ反射している。
５（オ器具本体１が取１寸けら石る天井面である。なお
、前記本体反射板４の代替作用をこの天井面５にめるこ
とは可能で、本体反射板４に適当な曲率を与えて反射光
の方向を制御しない場合は、本体反射板４を小形に構成
することができる。まＰ。
器具本体１に対するルーパー２、間接光制御板３の取付
けは、器具端部のエンドプレート１３を利用する。
ルーパー２の形状についでは特定ぎわ、ないが、一般に
はフレア発生のない鉛直面配光が得ら石＼ばよい、
以上のような構成になる蛍光灯器具σ）光学的な特性Ｃ
ごついてみると、＠１図に示ｆように蛍光ランプ】２か
ら０）直射光のうち、一部は光線Ａのようｌこルーパー
２を通って下方を照射する。この部分の光はルーパー２
によって制御さ第１．るので鉛直角で最大直６０°を越
えないように設定することは比較的容易である。しかし
ながら、下面ルーパーから放射さｎ５る光は約３０多前
後であり、器具効率が良くないということも良く知らｎ
、ている所である。まだ一部Ｌ′））光線Ｂは間接光制
御板３で反射す１９１、その１次反射光が天井面５ある
いは本体反射板４で反射さｎ、て間接先制ｒａｔ［３の
上端と天井面５の間から室内に放射され、る。また他の
一部の光線Ｃは、本体反射板４に入射し、その反射光が
室内に放射さ第１．る。もちろん、図示してはないが。
本体反射板４に入射して反射さイ１．ルーパー２を通し
て、あるいは間接光制御板３と天井面５との間で反射を
繰返しながら室内に放射ざ旧、ろ光線もある。このよう
な間接光制御板３および本体反射板４の反射特性の結果
、本発明による蛍光灯器具は第３図に示すような傾向の
配光を示１「よ・うｌこｆ（る。この配光の特徴は下半
球配光がルーパー２１（−より第１遮光角θ１が設定ぎ
わ、小ことと、間接光制御板３によって水平方向の配光
が制御さ第１．第２遮光角θ２が設定さイアるこ♂、下
半球配光が大きな拡がりを持ら下半球光束に匹敵する光
束が枚射さ２７そり）最大光度角θ３は間接ゲＣ制−仮
３１本体反射敗４によってはゾ決定ざ７１１石ことにあ
る。この上半球配光（ｊ天井面５を平均的に広く照明で
きるような形が望まし７い。このような構成になる蛍光
灯器具の器員効率は５０〜６０チに達１−る。
第４図は本発明による直ｆづ形の蛍光灯器団の第１の実
施例を示↑も０）である。図シこ旧いで、］は器器具体
で女定器１４が取付けろわ、でいイ）。１５は器具本体
】を構成するソケット取付台で、蛍光う／ブ０）ソケッ
ト１１が取付けられ、でいる。本体反射板４はソケット
取付台１５に設けた取付孔に取負ネジ１６で固定ざ石、
る。も祇ろん、ソ）１ツト１１を本体反射板４に取ｆ寸
け＾こともてきめ。１３は器具本体１の両端に固定さ石
、るエンドプレートて、１ん縁[Invention 0) Field of Application] The present invention is applicable to mounting on a ceiling surface directly or by using a hanging tool or the like. In particular, it prevents reflections of the light emitting part on screens such as flare prevention +)-'j6 and CRT screens, making it suitable for lighting rooms where computer-related OA equipment is used. This article relates to fluorescent lighting equipment. [Background of the Invention] With the recent development of office automation equipment, there has been an increasing demand for lighting quality, but conventionally, there has been a need to prevent flare and increase CI to display screens such as one screen. Preventing glare from the light emitting part of lighting equipment does not necessarily mean that it is necessary. In other words, the light distribution of the 6-light fixture to prevent flare is mainly in the form of a ballast wink, but it is not possible to prevent reflections on the display screen. Reflection on a display screen poses a problem in that if the luminance contrast between the light emitting part of the lighting fixture and its surroundings is large, it can easily cause eye fatigue for those viewing the display. On the other hand, preventing the reflection of the light emitting part of a lighting device on the display screen cannot be reliably achieved by using a certain type of louvered device that directs most of the light toward the bottom of the page. be. However, when this type of lighting equipment is used, there are problems in that the ceiling surface may be dark and the lighting environment is gloomy, and the efficiency of the equipment is reduced. Therefore, a lighting fixture that can prevent the light emitting part of the lighting fixture from reflecting on the display screen, and at the same time emits light to the ceiling surface to brighten the ceiling surface and prevent clay T, was developed in the 1970s.
It is r15 proposed in issue s-1o24s etc. However, the irradiation of light onto the ceiling surface is no more than simply creating a gap for the light to pass through, and installing a looper, etc. on the bottom surface greatly reduces the efficiency of the equipment. [Invention Q] In view of these circumstances, the present invention prevents the reflection of the light emitting part of the lighting equipment on the display screen and prevents the occurrence of flare. Moreover, the present invention aims to provide a fluorescent lamp fixture with good fixture efficiency. The direction is mainly composed of the downward direction and above the horizontal direction, and the downward light is controlled by a looper (1), and the upward light is mainly formed by small reflected light by the reflecting plates installed on both sides of the looper. death,
The feature is that it combines the method of looper and indirect lighting. [Implementation of the Invention] Figures 1 and 2 show the basic implementation sequence of the fluorescent lamp fixture according to the present invention. 】2 is installed
I'm there. Reference numeral 2 denotes a looper provided below the main body of the device, and indirect light control plates 3 are arranged side by side along the longitudinal sides of the looper 2. The indirect light control plate 3 has two functions: upward reflection of the light from the fluorescent lamp 12 and horizontal shading of direct light, and is effective in preventing flare. 4 (O main body reflection plate reflects the direct light from the fluorescent screen 12 or the reflected light from the indirect light control plate 3 from the upper end of the indirect light control plate 3 to the space above. The main body 1 of the appliance is a ceiling surface with a one-dimensional shingle.It is possible to provide a substitute effect for the main body reflecting plate 4 on this ceiling surface 5, and by giving an appropriate curvature to the main body reflecting plate 4, the reflection When the direction of light is not controlled, the main body reflecting plate 4 can be configured to be small.P. The looper 2 and indirect light control plate 3 can be attached to the main body 1 of the device using the end plate 13 at the end of the device. There is no particular specification regarding the shape of the looper 2, but in general it is sufficient to obtain a vertical light distribution without flare.A fluorescent lamp with the above configuration σ) Optical characteristics C
If you look at it, a part of the direct light from the fluorescent lamp as shown in Figure 1 passes through the looper 2 like ray A and irradiates the downward direction. The light in this part is looper 2
Controlled by 1st. Therefore, it is relatively easy to set the vertical angle so that the maximum vertical angle does not exceed 60°. However, it is well known that the light emitted from the bottom looper is around 30 degrees, and the efficiency of the device is not good.
, is where I am. Still a part L')) The light ray B is reflected by the indirect light control plate 3191, and its primary reflected light is reflected by the ceiling surface 5 or the main body reflector 4n, and the indirect preemptive rat[3 and the ceiling surface It is radiated into the room from between 5 and 5. In addition, some of the other light rays C enter the main body reflector 4, and the reflected light is radiated into the room. Ru. Of course, it is not shown. It enters the main body reflector 4 and is reflected.1. There are also filtered and filtered light rays that radiate into the room through the looper 2 or through repeated reflections between the indirect light control board 3 and the ceiling surface 5. As a result of the reflection characteristics of the indirect light control plate 3 and the main body reflector 4, the fluorescent lamp apparatus according to the present invention exhibits a light distribution trend as shown in FIG. The characteristics of this light distribution are that the lower hemisphere light distribution is set at the first shading angle θ1 from the looper 21 (-), and that the horizontal light distribution is controlled by the indirect light control plate 3. When θ2 is set, the light distribution in the lower hemisphere has a large spread, and a luminous flux comparable to the luminous flux in the lower hemisphere is emitted.27) The maximum luminous intensity angle θ3 is determined by the indirect game C system - tentative 31 body reflection loss 4. This upper hemisphere light distribution (j) is desirable to have a shape that can illuminate a wide area of the ceiling surface 5 on average. Figure 4 shows a first embodiment of a straight-shaped fluorescent lamp group according to the present invention. The female measuring device 14 is attached to the instrument body. 15 is a socket mounting base constituting the instrument body, on which the fluorescent tube 0) socket 11 is attached. The main body reflector 4 is A stone is fixed to the mounting hole provided in the socket mounting base 15 with a take screw 16,
Ru. Also, be sure to attach 11 to the reflector plate 4 of the main body. 13 is an end plate with stones fixed to both ends of the instrument body 1;
【こ縁部を形成しである
。３１はエツト７゜レー１−１３に取付ネジ３２で固定
きｎ１石遮光板で、その内側には反射板３３が設けてあ
石。こ０）反射板３３は遮光板（１に一端を係１卜し、
他端を遮光板３１に設け１こ支持台３４にネジ３５で固
定し、ム二押え金具３６で保持き旧６．ル−／く−２も
こσ）押え金具３６で保１．１．ざ旧、小、な払こσ１
本体反射板４は、蛍光ラップ１２からの光ＣＩ 、 Ｃ
２、Ｈ”Ｆ方ル−バーの方向−５反射″′ｒる第１反射
開放部何１へ反射でる第２反射面４２う；備えてＧする
。
また反射板３３は上古；−１てそθ〕反射光Ｂ １／１
Ｚ（ｊａｉｌプデ開放部から斜め上方へ反射している。
こσ］反射板′（３と遮光板′（１け両者で第１図に示
しＩＪ間間接光制御板３形成している。こｑ）間接光制
御板３（ま外観形状も形成し７ているムτめ反射特性上
０１形状力５外蝮１上不適当ん「場合は、このように遮
光機能を与える遮光板で外観形状を整０）え、反射機能
を与える反射板で所望の反射特性を得ろさよい。
第５図は第４図に示ず蛍光灯器具σ）配光を示１−もＯ
）で反射板３３と本体反射板４０１第２反射面０１反ｌ
こピークが出るという特徴ある配光が得ら石でいる。こ
の実施列はルーパー２の面積を比較的小さく押えている
ため、下半球光束（オ約１７チ、上半球光束Ｃま配光因
りΔら明らかなようｌこ発散光束が多く約３２％（！：
なっており．全体で約５９チとルーパー付きのフレア防
止形蛍光灯器具おしでは高い器具効率を示している−
８６図は第２の実施列を示すもので、こσ）蛍光灯器具
の特徴は本体反射板４に天井面５を覆う平板状の反射面
４３を設けに所にある。ｔｉｃ−、遮光板３１０２金属
板でＣ：ｔなく透光性を有↑るプラスチック材料で形成
した点ｌこある。その１，−め、反射板３２で反射しＰ
光の多ぐは前記平板反射面４３で２次反射し、蛍光ラッ
プ１２からの】吹射射光Ｃ５に加わって２吹射射光Ｂｚ
，：１−．で放射さ石．る。
また、透光性遮光板３１０に蛍光ランプ】２から入射し
，た光は一ｉは拡散透過光Ｅ１として，また一部は反射
光Ｅ２とし５て透過あるいは反射さ才９、る。
もちろん、この平板反射面４３と．透光性遮光板３１０
はそｌ’１．ぞオ９独立して使用することができる。
なお平板反射面４３は反射光により下半球光束を増７１
＋１さぜ石こおができるが，フレアゾーンの光が増加す
るので遮光板による第２遮光角を確保する１こめには遮
光板の高さを高く↑ろ必要があり、遮光板として透光性
遮光板３ １ ０ ”？使用すると器具効率を向上させ
る点で効果がある，Ａ１はルーパー２を透過する直射光
，Ｃａは本体反射板４で反射し２，ルーパー２を透過し
五反射光を示す。
第７図は槽３の実施列を示′ｔもので，蛍光ランプ１灯
用占しで構成し７．−ａσ）である。この場合は器具本
体１の直下に蛍光ランプ】２が配置さｎ，るので、器日
−全体の高さかや＼大きくなり間接光制動板′）の上縁
と天井面５吉の間は広くなるため、上半球光束が多くな
る。蛍光ランプ１２からの光はルーパー２を透過する直
射光Ａ２、間接光制御板３で上方へ反射される反射光Ｂ
３，本体反射板４で反射される反射光Ｃ５など、照明器
具からの発散性が良好で器具効率の高い蛍光灯器具が得
られ，る。
窮８図は器具本体１に取付けらｒＩ６本体反射板４１こ
特徴を有するもので、特にその天井面５と平行な反射面
４４を若干外側にテーパーを形成した点にある。このた
め、蛍光ランプ１２から（７１１次反射光Ｃ６は若干直
下方向への傾きが大きくなり、直下方向の配光が拡がる
。もう一つＱ１特徴は，一対の蛍光ランプ１２．１２の
直下にそス］ぞ７１．独立した一対のルーパー２１．２
１ｆ設置した点にある。ルーパーを透過ｆる光Ａ３は反
射光２別にτ１９、ば蛍光ランプをルーパーの中心に置
いた場合が最大になることは明らかで、２灯用の蛍光灯
器具ｔこおいては第８図／／）ような構造が適している
。この場合，一対σ）ルーパー２１，２１の中間に配置
した中央光制呻仮３７は、蛍光ランプ１２からの光を反
射し１列えは３次反射光Ｂ５として放射され，る。ｔた
１間接先制（財）板３で反射し、本体反射板４で再反射
ぎわ，た２次反射光Ｂ４も器具外へ放射されるが、そｎ
．ぞわ、の反射特性を適当に定めるとフレアを防止しな
がら直下方向への光を増ｆことが可能である〇
第９図（よ窮８図乏同様、蛍光ランプ１２．１２の直下
にルーパー２１，２１Ｆ配置しｋもので。
中央光制御板３８，３８を設けてその間ｌこ間隙を形成
し１図示のようｌこ蛍光ランプ１２からの直射光ｋａｆ
中央光制御板３８の外面で反射させ、また本体反射板４
による反射光Ｃ７＋透過させている。その結果、ルーパ
ー２１を透過ｆる直射光Ａ５と力口算さイ９５、直下方
向０）光束を増７ＪＩ］さぜ小こおができる。なお、中
央光制御板３８０）内Ｉ１１で反射される光は、例えは
反射光Ｂ６のようζこ器具側部の間隙から放射される。
また、間接光制御板３での反射光Ｂ７．本体反射板４に
よる反射光ＣＢは前述の実施列と同様である。このよう
な構成の蛍光灯器具の特徴は、下方の発光面が広い所に
ある。
外１０図は本発明に係る蛍光灯器具の異なる方式ｌこよ
るもので、第１図乃至窮９図までが天井面に直接取付け
られ２小力式であるのに対し、天井内に埋込よ石、る方
式に関するものである。図１こおいて、６（オ第１図に
２け小器具本体１に相当′ｔ６埋込器具本体で、エンド
プレート６１を有し、埋込器具本体６の開口部周縁ζこ
け額縁６２が形成さ石でいる。６３は埋込器具本体６１
こ取付けらｎＲ安定器、６４はソケット６５、本体反射
Ｗ、４ ｆ取付けろ取付金具である。中央ｌこ配置きイ
タ。タル−パー２は１間接先制脚仮３θ）端部で支持さ
石、る。この間接光制御板３０）端部にはルーパー２を
押える押え金具３６を支持ｆる支持台３４が設けてあり
）。
ネジ３５で固定さ和でいる。こ０）ルーパー２２間接光
制御板３は、図示してはないがエンドプレート５］／７
１内側に額縁６２と而−に固定ざ石７．Ｌ字形の支持金
具に、化粧ネジ３７で取付けらロ、小。
このような（構成にびる蛍光灯器具は、ルーパー２を透
過−「６直射光Ｆ１１本体反射阪４による反射光Ｃｈ、
（）２等ｌこよって直下方向σ）光束が得ら２９゜ろ。
言″′１まてもなく埋込器具本体丗いては面下方向への
光束しか得ろイ１ないわけであるが、特にルーパー付き
器具の場合は列えば嬉１］図ｔＣおいて破線Ｐて示１−
ような配光曲線を呈し、器具効率としても３０〜３５係
程度が普通である。一方１本発明Ｃ（よろ蛍光灯器具に
よりは、間接光制御板３お本体反射板４の間隙を通って
下方に放射されろ光が多くなり、ルーパー２に比軟して
吸収も少ないため器具効率は３５〜４０←こ達″′ｒろ
。Ｃｎ、は、外１１図１こ実線で示す配光曲線Ｑのよう
番へ鉛直角Ｏ〜約３０°方向０〕光は減少気味であるが
、鉛直角約３０〜６０°方向の光が増加し、全体として
１５〜２０チの光束増力口が得ら７］、る、第１２図は
】灯用の実施列を示ｆもので、蛍光ランプ６６からの光
は、直射光Ｆ２、間接光制御ｖｉ、３１こよる反射光Ｈ
１、本体反射板４による反射光Ｇ３としで下方番ご放射
さイｑ、ろ。こ０）ように、蛍光ラップ６６Ｑ）］百下
にルーパー２を設けるお直下方向への光束が増力口し、
器具効率は更に向上する。
なお、＠１０図の実施列においては器具の埋込高さを低
く丁６ため、蛍光ランプ６６の配置を本体反射板４の両
側に設けたが、安定器６３を照明器具の工／トブレ−１
−側に配置する構造お−ｔ−ｎ４ず薬１２１シ４に示す
ような構成り）２灯用蛍光灯器具とすることも可能で、
そ０）場合（ま第１１図に示１−一般０）ルーバー１寸
さ器具と略同等□ｌ＋Ｐｊ下光度が得らイ９／−，０）
で、全体さして器具効率は犬［旧こ向上１−る、釘１３
図は、前述のように蛍光ラップ６６ 、６６の面下にそ
ｎ５ぞｎ、独立してルーパー２１，２］’ｉ配置し２両
ルーバー：２］、２］の間に間隙を形成し、たものであ
る。Ｃσ）場合１間接光制御板３はｆｆｆ記間隙の両（
ＱｌｉＣ配置されゐ−このようｆ、１−構成により、ば
、蛍光ランプ６６からの光は、その一部（オル−バー２
１を透過″４−６直射光Ｆ３として、また他の一部は本
体反射ｖｉ、４で反射し前記間隙を透過する反射光（Ｌ
（！：１−て、他の一部（月司様に本体反射＠４で反射
しに後ルーパー２１を透過丁６１文射光Ｇ５としで、そ
イ９ぞわ下方に放射さイー）る。この場合の本体反射板
４（１、はゾ放物面を構成した面をそわぞ７１の蛍光フ
ップロ６．６６に対し、て形成する古効果的であめ。な
お、駆Ｊ２図に示す実施１９すでもＪ対相として器昆が
大型化する傾向力）あり。
また射１３図ＩＣ示す構造０）場合は２灯用おしでも器
具が大型化するおいう問題プ邦あろＣ外１４図は第１３
図を４灯用古しでノ主かした構成を示ｆものて、第１２
図を２カ］用亡しで使用し１こものを２合線めた形とし
で見ることができろ。
このよ喧ｆ構成によ石は間接光制薗板３の存在により、
ルーバー２を省略するこ乏ができ１間接光制御板３１こ
よ６光損失がこゎに代替さｎ、た部分。）ルー・Ｘ−１
こよる損失よりもはるかに小さくて済むこ６１Ｃより、
全体さして器具効率を高めるこおができる。
ｔ［：Ｆ６．以上の実施例の説明において、反射板とし
て機能ｆる部分ζこつ９１ては鏡面よりも拡散反射面と
し７て構成し１こ方がフレア発生などの面から適してい
る。まに、ルーバーについでは、格子の目の小さい方が
柔らかな光さ４ｆるためＯＡ機器を設置ｆ小部屋θ）照
明おしては適しているが、格子目σ）大きいルーバーも
利用でき石。
〔発明の効果〕
以上説明したようｌこ１本発明による蛍光灯器具は、器
具本体下方ｌこルーパー２設け、その側方θ）空間に遮
光２よび反射機能を有す小間接光制ｉｇ阪を設け、その
先に存在丁す空間に器具本体上方に設けた本体反射板お
連係して反射光を放射するようにしｋので、全体さして
σ）器具効率を大巾ｌこ増７Ｊｌ］ｆる効果がある。[This is to form the edge. 31 is an n1 stone light shielding plate fixed to the et 7° relay 1-13 with a mounting screw 32, and a reflecting plate 33 is provided inside the light shielding plate. 0) The reflecting plate 33 is a light shielding plate (one end is connected to 1,
The other end is provided on the light shielding plate 31 and fixed to the support stand 34 with screws 35, and held with the two-piece presser metal fitting 36. 1.1. za old, small, na payko σ1
The main body reflector 4 receives light CI and C from the fluorescent wrap 12.
2. The second reflecting surface 42 is provided with a reflection from the first reflecting opening in the direction of the louver in the H''F direction. Also, the reflecting plate 33 is old; -1 angle θ] Reflected light B 1/1
The light is reflected diagonally upward from the opening of the jail. q) Indirect light control plate 3 (which also forms the external shape) If the reflection characteristics are inappropriate, use a light shielding plate that provides a light shielding function to change the external shape. Adjust the 0) and obtain the desired reflection characteristics with a reflector that provides a reflection function.
), the reflection plate 33 and the main body reflection plate 401 second reflection surface 01
This stone has a distinctive light distribution with this peak. In this implementation row, the area of the looper 2 is kept relatively small, so the lower hemisphere luminous flux (O) is approximately 17%, and the upper hemisphere luminous flux (C) is large, as is clear from the light distribution Δ, where the divergent luminous flux is approximately 32% (! :
It is. The flare-preventing fluorescent lamp fixture with a looper has a total of approximately 59 cm and exhibits high fixture efficiency. Figure 86 shows the second implementation row. A flat reflective surface 43 covering the ceiling surface 5 is provided on the plate 4. tic-, the light-shielding plate 3102 is a metal plate made of a transparent plastic material without C:t. Part 1, - is reflected by the reflecting plate 32 and P
Most of the light is secondarily reflected by the flat reflecting surface 43, and is added to the incident light C5 from the fluorescent wrap 12 to form the second incident light Bz.
, :1-. A stone radiated with. Ru. Further, the light incident on the light-transmitting light-shielding plate 310 from the fluorescent lamp 2 is transmitted or reflected as diffused transmitted light E1 and partly as reflected light E2. Of course, this flat reflective surface 43 and... Translucent light shielding plate 310
Haso l'1. 9 can be used independently. Note that the flat reflective surface 43 increases the luminous flux in the lower hemisphere 71 by reflected light.
+1 A light shield is formed, but the light in the flare zone increases, so in order to secure the second shading angle with the shading plate, it is necessary to increase the height of the shading plate. When used, it is effective in improving the equipment efficiency. A1 is the direct light that passes through the looper 2, Ca is reflected by the main body reflector 4, 2, and the 5-reflected light that passes through the looper 2. Figure 7 shows the actual row of the tank 3, which is composed of one fluorescent lamp (7.-aσ).In this case, there are two fluorescent lamps directly under the device body 1. is arranged, the overall height of the lamp becomes larger, and the space between the upper edge of the indirect light damping plate') and the ceiling surface becomes wider, so the luminous flux in the upper hemisphere increases.From the fluorescent lamp 12 The light is direct light A2 that passes through the looper 2, and reflected light B that is reflected upward by the indirect light control plate 3.
3. A fluorescent lamp fixture with good divergence from the lighting fixture, such as reflected light C5 reflected by the main reflector plate 4, and high fixture efficiency can be obtained. Figure 8 shows a reflector plate 41 attached to the main body 1 of the appliance, which is characterized in that its reflective surface 44, which is parallel to the ceiling surface 5, is tapered slightly outward. Therefore, the inclination of the 711st-order reflected light C6 from the fluorescent lamp 12 (711) in the direct downward direction becomes slightly larger, and the light distribution in the direct downward direction expands. Another feature of Q1 is that the 71. A pair of independent loopers 21.2
It is at the point where 1f was installed. It is clear that the light A3 transmitted through the looper is τ19 for each reflected light 2, and the maximum value is reached when the fluorescent lamp is placed in the center of the looper. /) is suitable. In this case, the central light suppressor 37 placed between the pair of σ) loopers 21, 21 reflects the light from the fluorescent lamp 12, and the light from the fluorescent lamp 12 is emitted as tertiary reflected light B5. The second reflected light B4 is reflected by the first indirect preemptive board 3 and then re-reflected by the main body reflector 4, and the secondary reflected light B4 is also radiated outside the instrument.
．． By appropriately determining the reflection characteristics of the fluorescent lamp, it is possible to increase the light directly below while preventing flare. 21, 21F are arranged. Central light control plates 38, 38 are provided and a gap is formed between them, so that the direct light from the fluorescent lamp 12 is controlled as shown in the figure.
It is reflected by the outer surface of the central light control plate 38, and the main body reflector 4
The reflected light C7+ is transmitted. As a result, the direct light A5 transmitted through the looper 21 and the power calculation A95 increase the luminous flux in the direct downward direction. Note that the light reflected by I11 inside the central light control plate 380) is emitted from the gap on the side of the instrument, for example as reflected light B6. Also, reflected light B7 on the indirect light control plate 3. The reflected light CB by the main body reflector 4 is the same as in the above-mentioned embodiment. A feature of fluorescent light fixtures with such a configuration is that the lower light emitting surface is wide. Figure 10 shows different types of fluorescent lamp fixtures according to the present invention. Figures 1 to 9 are directly attached to the ceiling and are of the low-power type, while the fluorescent lamps that are embedded in the ceiling are of the low-power type. This is about the method. In FIG. 1, 6 (corresponds to the small device main body 1 in FIG. It is formed of stone. 63 is the implantation device main body 61
This nR ballast is attached, 64 is a socket 65, a main body reflection W, and 4F is a mounting bracket. Ita placed in the center. Talpar 2 is a stone supported at the end of the first indirect leg (temporary 3θ). A support base 34 is provided at the end of the indirect light control plate 30) to support a presser metal fitting 36 that presses down the looper 2). It is fixed with screw 35. 0) The looper 22 and the indirect light control plate 3 are connected to the end plate 5]/7, although not shown.
1. A picture frame 62 inside and a fixed stone 7. Attach to the L-shaped support bracket with decorative screws 37, small. Fluorescent lamp fixtures of this type (configuration) pass through the looper 2 - "6 Direct light F11 Reflected light from the main body reflection plate 4 Ch,
() 2 magnitude L Therefore, a luminous flux in the direct downward direction σ) is obtained, which is 29 degrees. 1) In the case of an instrument with a looper, it would be nice to line up the line (1). Showing 1-
It exhibits a light distribution curve like this, and the luminaire efficiency is usually around 30 to 35. On the other hand, 1. Invention C (depending on the fluorescent lamp fixture), more light is emitted downward through the gap between the indirect light control plate 3 and the main body reflecting plate 4, and the light is absorbed less compared to the looper 2. The efficiency is 35~40 ← This is reached. Cn is as shown in the light distribution curve Q shown by the solid line in Fig. , the light in the vertical direction of about 30 to 60 degrees increases, and a total of 15 to 20 beam intensifiers are obtained.7] Figure 12 shows the implementation row for the fluorescent lamp. The light from the lamp 66 includes direct light F2, indirect light control vi, and reflected light H from 31.
1. The reflected light G3 from the main body reflector 4 is radiated downward. As shown in FIG. 0), the fluorescent wrap 66Q)] is provided with a looper 2 at the bottom, and the luminous flux directed directly below is intensified.
Instrument efficiency is further improved. In addition, in the implementation row shown in Figure @10, the fluorescent lamps 66 were placed on both sides of the main reflector plate 4 in order to keep the height of the fixtures low. 1
It is also possible to make a two-lamp fluorescent lamp fixture (configuration as shown in Figure 121).
In the case of 0) (as shown in Figure 11), the luminous intensity approximately equal to that of the 1-size louver fixture is obtained.9/-, 0)
So, overall, the efficiency of the equipment is a dog [old improvement 1-ru, nail 13]
The figure shows that the loopers 21, 2]'i are arranged independently under the surfaces of the fluorescent wraps 66, 66 as described above, and a gap is formed between the two louvers 2], 2]. It is something that Cσ), the first indirect light control plate 3 has a gap of fff (
With this arrangement of QliC, for example, light from the fluorescent lamp 66 is transmitted to a portion of it (overbar 2).
1 is transmitted as ``4-6 direct light F3, and the other part is reflected by main body reflection vi, 4 and transmitted through the gap (L
(!: 1-, and the other part (Tsukiji-sama's main body reflection @ 4 reflects the light from the rear looper 21 as the light beam G5 from the transparent knife 61, and radiates it downward). In this case, the main body reflector 4 (1) is an old-fashioned method in which the surface forming a paraboloid is formed with respect to the fluorescent flip-flop 6.66 of the 71. However, there is a tendency for the device to become larger as opposed to J).In addition, in the case of the structure shown in Figure 13 IC (0), there is a problem that the fixture will become larger even if it is a two-light lamp. 13th
The figure shows the configuration based on the old four-light lamp, and the 12th
You can use 2 diagrams for your convenience and see 1 as 2 cross lines. Due to this structure, the presence of the indirect light control board 3,
It is possible to omit the louver 2, and the 1st indirect light control plate 31 is the part where the 6th light loss is replaced. ) Lou X-1
From 61C, which requires much less loss than this,
This will increase the efficiency of the equipment as a whole. t[:F6. In the above description of the embodiment, the portion 91 functioning as a reflector is constructed as a diffuse reflection surface 7 rather than a mirror surface, which is more suitable from the viewpoint of flare generation. However, when it comes to louvers, the smaller the lattice mesh is, the softer the light, so it is suitable for installing office equipment (f) for lighting a small room, but the larger lattice mesh σ) can also be used. [Effects of the Invention] As explained above, the fluorescent lamp fixture according to the present invention is provided with a looper 2 at the bottom of the fixture body, and a small indirect light control system having a light shielding function 2 and a reflection function in the space on the side θ). , and emit reflected light in conjunction with the main body reflector installed above the instrument body in the space that exists beyond it. Therefore, the overall efficiency of the instrument increases by a large amount of 7 Jl]. effective.
【図面の簡単な説明】[Brief explanation of the drawing]
図面（オいず石、も本発明に関する１）ので、第１図は
基本的な実施例を示１〜断面図、第２図は一部を切欠い
て示す斜視図、類３図はその配光曲線図、第４図は具体
的な第１０）実施列を示す一部を断面した側面図、＠５
図はその配光曲線図、第６図は窮２０）実施例を示す断
面図、第７図は第３６）実施例を示す断面図、第８図は
嘉４の実施列２示す断面図、窮９図は第５０）実施例を
示す断面図、屯１０図は他の方式シこよ石実栴列を一部
を断面して示ｆ側面図、再１１図はその配光曲線図、范
１２図乃至嘉１４図はそｎぞｎ、ＨＩｏ図の方式０）蛍
光灯器具に関連し１こ実施ツ１１を示で。
図において、】は器具本体、２（オル−バー、３は間接
）′Ｃ制（財）仮、４は本体反射板、５は天井面、６は
埋４器具本体、１２．６６は蛍光う／−ｙ＝、］ ３゜
６１はエンドブル−１−である。
代理人 弁理士 高 橋 明 内く）
図面の浄書（内容に変更なし）
＄ ２ 図
鼻 ３ 図
ｔＭ’
０゛
＄ ４ 図
Ｃつ
＄５１２１
Ｉｎ／ｉ６
び
＄６図
顕８ 図
第９図
（
第１０ 図
第１Ｉ 図
１θび
凍１２図
第１３図
沸１４図
手続補正書（方式）
昭和 ５８ 年特Ｈ’ｌ願第 １７８２８４ 弓発明の
名称
蛍光灯器具
袖−市をする者
１１イ′Ｉとの関イ、 特許出願人
１２．．−１゛、ノー−
住 所 〒２７５千葉県習志野市東習志野六丁目７番１
号名称（５４７）日立照明株式会社
代表者 西 岡 博
代 理 人Drawings (Ozite, also related to the present invention), Fig. 1 shows the basic embodiment 1 to sectional view, Fig. 2 is a partially cutaway perspective view, and Fig. 3 shows its arrangement. Light curve diagram, Figure 4 is a partially sectional side view showing a specific 10th) implementation row, @5
6 is a cross-sectional view showing the 20th) embodiment, FIG. 7 is a sectional view showing the 36th) embodiment, and FIG. 8 is a sectional view showing the second embodiment of Ka4. Fig. 9 is a sectional view showing the 50th embodiment, Fig. 10 is a partially sectional side view of another type of stone-filled column, and Fig. 11 is a light distribution curve diagram thereof. Figures 12 to 14 respectively show method 0) of the HIo diagram, and one example 11 related to fluorescent lamp fixtures. In the figure, ] is the main body of the fixture, 2 (overbar), 3 is indirect), 4 is the main body reflector, 5 is the ceiling surface, 6 is the buried 4 fixture body, 12.66 is the fluorescent tube. /-y=,] 3°61 is End Blue-1-. Agent Patent Attorney Akira Takahashi Engraving of drawings (no changes to the contents) $ 2 Drawing nose 3 Drawing tM' 0゛$ 4 Drawing C $ 5121 In/i 6 and $ 6 Drawing 8 Drawing 9 ( 10 Figure 1 I Figure 1 Patent Applicant 12..-1゛, No. Address: 6-7-1 Higashi-Narashino, Narashino City, Chiba Prefecture 275
Name (547) Hitachi Lighting Co., Ltd. Representative Hiroyo Nishioka Masato